From 38da5b0d414597250a695f7e2bca357d24a8b29e Mon Sep 17 00:00:00 2001 From: Christoph Oberhofer Date: Sun, 27 Sep 2015 21:49:47 +0200 Subject: [PATCH 1/7] Initial migration to webpack --- Gruntfile.js | 43 +- dist/quagga.js | 20062 +++++++++++++++++++++++------------- dist/quagga.map | 1 + dist/quagga.min.js | 17 +- package.json | 11 +- plugins/umd.js | 35 + src/array_helper.js | 141 +- src/barcode_decoder.js | 500 +- src/barcode_locator.js | 960 +- src/barcode_reader.js | 425 +- src/bresenham.js | 395 +- src/camera_access.js | 242 +- src/cluster.js | 119 +- src/codabar_reader.js | 530 +- src/code_128_reader.js | 758 +- src/code_39_reader.js | 394 +- src/code_39_vin_reader.js | 106 +- src/config.js | 77 +- src/cv_utils.js | 1290 ++- src/ean_8_reader.js | 94 +- src/ean_reader.js | 600 +- src/events.js | 147 +- src/frame_grabber.js | 129 +- src/html_utils.js | 40 - src/i2of5_reader.js | 622 +- src/image_debug.js | 86 +- src/image_loader.js | 101 +- src/image_wrapper.js | 785 +- src/input_stream.js | 573 +- src/quagga.js | 868 +- src/rasterizer.js | 341 +- src/result_collector.js | 91 +- src/skeletonizer.js | 321 +- src/subImage.js | 171 +- src/tracer.js | 179 +- src/typedefs.js | 49 +- src/upc_e_reader.js | 198 +- src/upc_reader.js | 46 +- webpack.config.js | 34 + webpack.config.min.js | 8 + 40 files changed, 18672 insertions(+), 12917 deletions(-) create mode 100644 dist/quagga.map create mode 100644 plugins/umd.js delete mode 100644 src/html_utils.js create mode 100644 webpack.config.js create mode 100644 webpack.config.min.js diff --git a/Gruntfile.js b/Gruntfile.js index f7b2e200..87c6aa55 100644 --- a/Gruntfile.js +++ b/Gruntfile.js @@ -11,49 +11,8 @@ module.exports = function(grunt) { configFile: 'karma-integration.conf.js' } }, - uglify : { - options : { - banner : '/*! <%= pkg.name %> <%= grunt.template.today("yyyy-mm-dd") %> */\n', - preserveComments: 'some' - }, - build : { - src : 'dist/<%= pkg.name %>.js', - dest : 'dist/<%= pkg.name %>.min.js' - } - }, jshint : { all : ['Gruntfile.js', 'src/*.js'] - }, - requirejs : { - compile : { - options : { - almond : true, - wrap : { - startFile : 'build/start.frag', - endFile : 'build/end.frag' - }, - "baseUrl" : "src", - "name" : "quagga", - "useStrict": true, - "out" : "dist/quagga.js", - "include" : ['quagga'], - "optimize" : "none", - "findNestedDependencies" : true, - "skipSemiColonInsertion" : true, - - "shim" : { - "typedefs" : { - "deps" : [], - "exports" : "typedefs" - } - }, - - "paths" : { - "typedefs" : "typedefs", - "gl-matrix": "../node_modules/gl-matrix/dist/gl-matrix-min" - } - } - } } }); @@ -73,4 +32,4 @@ module.exports = function(grunt) { grunt.registerTask('integrationtest', ['karma:integration']); grunt.registerTask('default', ['build']); -}; +}; diff --git a/dist/quagga.js b/dist/quagga.js index dce89a34..abbaa71b 100644 --- a/dist/quagga.js +++ b/dist/quagga.js @@ -1,7030 +1,13034 @@ -(function (root, factory) { - var factorySource = factory.toString(); - - if (typeof module !== 'undefined') { - module.exports = factory(factorySource); - } else { - //Browser globals case. Just assign the - //result to a property on the global. - root.Quagga = factory(factorySource); - } -}(this, function (__factorySource__) {/** - * @license almond 0.2.9 Copyright (c) 2011-2014, The Dojo Foundation All Rights Reserved. - * Available via the MIT or new BSD license. - * see: http://github.com/jrburke/almond for details - */ -//Going sloppy to avoid 'use strict' string cost, but strict practices should -//be followed. -/*jslint sloppy: true */ -/*global setTimeout: false */ - -var requirejs, require, define; -(function (undef) { - var main, req, makeMap, handlers, - defined = {}, - waiting = {}, - config = {}, - defining = {}, - hasOwn = Object.prototype.hasOwnProperty, - aps = [].slice, - jsSuffixRegExp = /\.js$/; - - function hasProp(obj, prop) { - return hasOwn.call(obj, prop); - } - - /** - * Given a relative module name, like ./something, normalize it to - * a real name that can be mapped to a path. - * @param {String} name the relative name - * @param {String} baseName a real name that the name arg is relative - * to. - * @returns {String} normalized name - */ - function normalize(name, baseName) { - var nameParts, nameSegment, mapValue, foundMap, lastIndex, - foundI, foundStarMap, starI, i, j, part, - baseParts = baseName && baseName.split("/"), - map = config.map, - starMap = (map && map['*']) || {}; - - //Adjust any relative paths. - if (name && name.charAt(0) === ".") { - //If have a base name, try to normalize against it, - //otherwise, assume it is a top-level require that will - //be relative to baseUrl in the end. - if (baseName) { - //Convert baseName to array, and lop off the last part, - //so that . matches that "directory" and not name of the baseName's - //module. For instance, baseName of "one/two/three", maps to - //"one/two/three.js", but we want the directory, "one/two" for - //this normalization. - baseParts = baseParts.slice(0, baseParts.length - 1); - name = name.split('/'); - lastIndex = name.length - 1; - - // Node .js allowance: - if (config.nodeIdCompat && jsSuffixRegExp.test(name[lastIndex])) { - name[lastIndex] = name[lastIndex].replace(jsSuffixRegExp, ''); - } - - name = baseParts.concat(name); - - //start trimDots - for (i = 0; i < name.length; i += 1) { - part = name[i]; - if (part === ".") { - name.splice(i, 1); - i -= 1; - } else if (part === "..") { - if (i === 1 && (name[2] === '..' || name[0] === '..')) { - //End of the line. Keep at least one non-dot - //path segment at the front so it can be mapped - //correctly to disk. Otherwise, there is likely - //no path mapping for a path starting with '..'. - //This can still fail, but catches the most reasonable - //uses of .. - break; - } else if (i > 0) { - name.splice(i - 1, 2); - i -= 2; - } - } - } - //end trimDots - - name = name.join("/"); - } else if (name.indexOf('./') === 0) { - // No baseName, so this is ID is resolved relative - // to baseUrl, pull off the leading dot. - name = name.substring(2); - } - } - - //Apply map config if available. - if ((baseParts || starMap) && map) { - nameParts = name.split('/'); - - for (i = nameParts.length; i > 0; i -= 1) { - nameSegment = nameParts.slice(0, i).join("/"); - - if (baseParts) { - //Find the longest baseName segment match in the config. - //So, do joins on the biggest to smallest lengths of baseParts. - for (j = baseParts.length; j > 0; j -= 1) { - mapValue = map[baseParts.slice(0, j).join('/')]; - - //baseName segment has config, find if it has one for - //this name. - if (mapValue) { - mapValue = mapValue[nameSegment]; - if (mapValue) { - //Match, update name to the new value. - foundMap = mapValue; - foundI = i; - break; - } - } - } - } - - if (foundMap) { - break; - } - - //Check for a star map match, but just hold on to it, - //if there is a shorter segment match later in a matching - //config, then favor over this star map. - if (!foundStarMap && starMap && starMap[nameSegment]) { - foundStarMap = starMap[nameSegment]; - starI = i; - } - } - - if (!foundMap && foundStarMap) { - foundMap = foundStarMap; - foundI = starI; - } - - if (foundMap) { - nameParts.splice(0, foundI, foundMap); - name = nameParts.join('/'); - } - } - - return name; - } - - function makeRequire(relName, forceSync) { - return function () { - //A version of a require function that passes a moduleName - //value for items that may need to - //look up paths relative to the moduleName - return req.apply(undef, aps.call(arguments, 0).concat([relName, forceSync])); - }; - } - - function makeNormalize(relName) { - return function (name) { - return normalize(name, relName); - }; - } - - function makeLoad(depName) { - return function (value) { - defined[depName] = value; - }; - } - - function callDep(name) { - if (hasProp(waiting, name)) { - var args = waiting[name]; - delete waiting[name]; - defining[name] = true; - main.apply(undef, args); - } - - if (!hasProp(defined, name) && !hasProp(defining, name)) { - throw new Error('No ' + name); - } - return defined[name]; - } - - //Turns a plugin!resource to [plugin, resource] - //with the plugin being undefined if the name - //did not have a plugin prefix. - function splitPrefix(name) { - var prefix, - index = name ? name.indexOf('!') : -1; - if (index > -1) { - prefix = name.substring(0, index); - name = name.substring(index + 1, name.length); - } - return [prefix, name]; - } - - /** - * Makes a name map, normalizing the name, and using a plugin - * for normalization if necessary. Grabs a ref to plugin - * too, as an optimization. - */ - makeMap = function (name, relName) { - var plugin, - parts = splitPrefix(name), - prefix = parts[0]; - - name = parts[1]; - - if (prefix) { - prefix = normalize(prefix, relName); - plugin = callDep(prefix); - } - - //Normalize according - if (prefix) { - if (plugin && plugin.normalize) { - name = plugin.normalize(name, makeNormalize(relName)); - } else { - name = normalize(name, relName); - } - } else { - name = normalize(name, relName); - parts = splitPrefix(name); - prefix = parts[0]; - name = parts[1]; - if (prefix) { - plugin = callDep(prefix); - } - } - - //Using ridiculous property names for space reasons - return { - f: prefix ? prefix + '!' + name : name, //fullName - n: name, - pr: prefix, - p: plugin - }; - }; - - function makeConfig(name) { - return function () { - return (config && config.config && config.config[name]) || {}; - }; - } - - handlers = { - require: function (name) { - return makeRequire(name); - }, - exports: function (name) { - var e = defined[name]; - if (typeof e !== 'undefined') { - return e; - } else { - return (defined[name] = {}); - } - }, - module: function (name) { - return { - id: name, - uri: '', - exports: defined[name], - config: makeConfig(name) - }; - } - }; - - main = function (name, deps, callback, relName) { - var cjsModule, depName, ret, map, i, - args = [], - callbackType = typeof callback, - usingExports; - - //Use name if no relName - relName = relName || name; - - //Call the callback to define the module, if necessary. - if (callbackType === 'undefined' || callbackType === 'function') { - //Pull out the defined dependencies and pass the ordered - //values to the callback. - //Default to [require, exports, module] if no deps - deps = !deps.length && callback.length ? ['require', 'exports', 'module'] : deps; - for (i = 0; i < deps.length; i += 1) { - map = makeMap(deps[i], relName); - depName = map.f; - - //Fast path CommonJS standard dependencies. - if (depName === "require") { - args[i] = handlers.require(name); - } else if (depName === "exports") { - //CommonJS module spec 1.1 - args[i] = handlers.exports(name); - usingExports = true; - } else if (depName === "module") { - //CommonJS module spec 1.1 - cjsModule = args[i] = handlers.module(name); - } else if (hasProp(defined, depName) || - hasProp(waiting, depName) || - hasProp(defining, depName)) { - args[i] = callDep(depName); - } else if (map.p) { - map.p.load(map.n, makeRequire(relName, true), makeLoad(depName), {}); - args[i] = defined[depName]; - } else { - throw new Error(name + ' missing ' + depName); - } - } - - ret = callback ? callback.apply(defined[name], args) : undefined; - - if (name) { - //If setting exports via "module" is in play, - //favor that over return value and exports. After that, - //favor a non-undefined return value over exports use. - if (cjsModule && cjsModule.exports !== undef && - cjsModule.exports !== defined[name]) { - defined[name] = cjsModule.exports; - } else if (ret !== undef || !usingExports) { - //Use the return value from the function. - defined[name] = ret; - } - } - } else if (name) { - //May just be an object definition for the module. Only - //worry about defining if have a module name. - defined[name] = callback; - } - }; - - requirejs = require = req = function (deps, callback, relName, forceSync, alt) { - if (typeof deps === "string") { - if (handlers[deps]) { - //callback in this case is really relName - return handlers[deps](callback); - } - //Just return the module wanted. In this scenario, the - //deps arg is the module name, and second arg (if passed) - //is just the relName. - //Normalize module name, if it contains . or .. - return callDep(makeMap(deps, callback).f); - } else if (!deps.splice) { - //deps is a config object, not an array. - config = deps; - if (config.deps) { - req(config.deps, config.callback); - } - if (!callback) { - return; - } - - if (callback.splice) { - //callback is an array, which means it is a dependency list. - //Adjust args if there are dependencies - deps = callback; - callback = relName; - relName = null; - } else { - deps = undef; - } - } - - //Support require(['a']) - callback = callback || function () {}; - - //If relName is a function, it is an errback handler, - //so remove it. - if (typeof relName === 'function') { - relName = forceSync; - forceSync = alt; - } - - //Simulate async callback; - if (forceSync) { - main(undef, deps, callback, relName); - } else { - //Using a non-zero value because of concern for what old browsers - //do, and latest browsers "upgrade" to 4 if lower value is used: - //http://www.whatwg.org/specs/web-apps/current-work/multipage/timers.html#dom-windowtimers-settimeout: - //If want a value immediately, use require('id') instead -- something - //that works in almond on the global level, but not guaranteed and - //unlikely to work in other AMD implementations. - setTimeout(function () { - main(undef, deps, callback, relName); - }, 4); - } - - return req; - }; - - /** - * Just drops the config on the floor, but returns req in case - * the config return value is used. - */ - req.config = function (cfg) { - return req(cfg); - }; - - /** - * Expose module registry for debugging and tooling - */ - requirejs._defined = defined; - - define = function (name, deps, callback) { - - //This module may not have dependencies - if (!deps.splice) { - //deps is not an array, so probably means - //an object literal or factory function for - //the value. Adjust args. - callback = deps; - deps = []; - } - - if (!hasProp(defined, name) && !hasProp(waiting, name)) { - waiting[name] = [name, deps, callback]; - } - }; - - define.amd = { - jQuery: true - }; -}()); - -define("almond", function(){}); - -/* jshint undef: true, unused: true, browser:true, devel: true */ -/* global define */ - -define('image_loader',[],function() { - "use strict"; - - var ImageLoader = {}; - ImageLoader.load = function(directory, callback, offset, size, sequence) { - var htmlImagesSrcArray = new Array(size), - htmlImagesArray = new Array(htmlImagesSrcArray.length), - i, - img, - num; - - if (sequence === false) { - htmlImagesSrcArray[0] = directory; - } else { - for ( i = 0; i < htmlImagesSrcArray.length; i++) { - num = (offset + i); - htmlImagesSrcArray[i] = directory + "image-" + ("00" + num).slice(-3) + ".jpg"; - } - } - htmlImagesArray.notLoaded = []; - htmlImagesArray.addImage = function(img) { - htmlImagesArray.notLoaded.push(img); - }; - htmlImagesArray.loaded = function(loadedImg) { - var notloadedImgs = htmlImagesArray.notLoaded; - for (var x = 0; x < notloadedImgs.length; x++) { - if (notloadedImgs[x] == loadedImg) { - notloadedImgs.splice(x, 1); - for (var y = 0; y < htmlImagesSrcArray.length; y++) { - var imgName = htmlImagesSrcArray[y].substr(htmlImagesSrcArray[y].lastIndexOf("/")); - if (loadedImg.src.lastIndexOf(imgName) != -1) { - htmlImagesArray[y] = loadedImg; - break; - } - } - break; - } - } - if (notloadedImgs.length === 0) { - console.log("Images loaded"); - callback.apply(null, [htmlImagesArray]); - } - }; - - for ( i = 0; i < htmlImagesSrcArray.length; i++) { - img = new Image(); - htmlImagesArray.addImage(img); - addOnloadHandler(img, htmlImagesArray); - img.src = htmlImagesSrcArray[i]; - } - }; - - function addOnloadHandler(img, htmlImagesArray) { - img.onload = function() { - htmlImagesArray.loaded(this); - }; - } - - return (ImageLoader); +(function webpackUniversalModuleDefinition(root, factory) { + if(typeof exports === 'object' && typeof module === 'object') + module.exports = factory(factory.toString()); + else if(typeof exports === 'object') + exports["Quagga"] = factory(factory.toString()); + else + root["Quagga"] = factory(factory.toString()); +})(this, function(__factorySource__) { +return /******/ (function(modules) { // webpackBootstrap +/******/ // The module cache +/******/ var installedModules = {}; +/******/ +/******/ // The require function +/******/ function __webpack_require__(moduleId) { +/******/ +/******/ // Check if module is in cache +/******/ if(installedModules[moduleId]) +/******/ return installedModules[moduleId].exports; +/******/ +/******/ // Create a new module (and put it into the cache) +/******/ var module = installedModules[moduleId] = { +/******/ exports: {}, +/******/ id: moduleId, +/******/ loaded: false +/******/ }; +/******/ +/******/ // Execute the module function +/******/ modules[moduleId].call(module.exports, module, module.exports, __webpack_require__); +/******/ +/******/ // Flag the module as loaded +/******/ module.loaded = true; +/******/ +/******/ // Return the exports of the module +/******/ return module.exports; +/******/ } +/******/ +/******/ +/******/ // expose the modules object (__webpack_modules__) +/******/ __webpack_require__.m = modules; +/******/ +/******/ // expose the module cache +/******/ __webpack_require__.c = installedModules; +/******/ +/******/ // __webpack_public_path__ +/******/ __webpack_require__.p = "/"; +/******/ +/******/ // Load entry module and return exports +/******/ return __webpack_require__(0); +/******/ }) +/************************************************************************/ +/******/ ([ +/* 0 */ +/***/ function(module, exports, __webpack_require__) { + + module.exports = __webpack_require__(1); + + +/***/ }, +/* 1 */ +/***/ function(module, exports, __webpack_require__) { + + 'use strict'; + + Object.defineProperty(exports, '__esModule', { + value: true + }); + + function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; } + + var _typedefs = __webpack_require__(2); + + var _typedefs2 = _interopRequireDefault(_typedefs); + + var _input_stream = __webpack_require__(3); + + var _input_stream2 = _interopRequireDefault(_input_stream); + + var _image_wrapper = __webpack_require__(5); + + var _image_wrapper2 = _interopRequireDefault(_image_wrapper); + + var _barcode_locator = __webpack_require__(20); + + var _barcode_locator2 = _interopRequireDefault(_barcode_locator); + + var _barcode_decoder = __webpack_require__(25); + + var _barcode_decoder2 = _interopRequireDefault(_barcode_decoder); + + var _frame_grabber = __webpack_require__(70); + + var _frame_grabber2 = _interopRequireDefault(_frame_grabber); + + var _config2 = __webpack_require__(71); + + var _config3 = _interopRequireDefault(_config2); + + var _events = __webpack_require__(72); + + var _events2 = _interopRequireDefault(_events); + + var _camera_access = __webpack_require__(73); + + var _camera_access2 = _interopRequireDefault(_camera_access); + + var _image_debug = __webpack_require__(24); + + var _image_debug2 = _interopRequireDefault(_image_debug); + + var _glMatrix = __webpack_require__(9); + + var _result_collector = __webpack_require__(74); + + var _result_collector2 = _interopRequireDefault(_result_collector); + + var merge = __webpack_require__(37); + + var _inputStream, + _framegrabber, + _stopped, + _canvasContainer = { + ctx: { + image: null, + overlay: null + }, + dom: { + image: null, + overlay: null + } + }, + _inputImageWrapper, + _boxSize, + _decoder, + _workerPool = [], + _onUIThread = true, + _resultCollector, + _config = {}; + + function initializeData(imageWrapper) { + initBuffers(imageWrapper); + _decoder = _barcode_decoder2['default'].create(_config.decoder, _inputImageWrapper); + } + + function initConfig() { + if (typeof document !== "undefined") { + var vis = [{ + node: document.querySelector("div[data-controls]"), + prop: _config.controls + }, { + node: _canvasContainer.dom.overlay, + prop: _config.visual.show + }]; + + for (var i = 0; i < vis.length; i++) { + if (vis[i].node) { + if (vis[i].prop === true) { + vis[i].node.style.display = "block"; + } else { + vis[i].node.style.display = "none"; + } + } + } + } + } + + function initInputStream(cb) { + var video; + if (_config.inputStream.type == "VideoStream") { + video = document.createElement("video"); + _inputStream = _input_stream2['default'].createVideoStream(video); + } else if (_config.inputStream.type == "ImageStream") { + _inputStream = _input_stream2['default'].createImageStream(); + } else if (_config.inputStream.type == "LiveStream") { + var $viewport = document.querySelector("#interactive.viewport"); + if ($viewport) { + video = $viewport.querySelector("video"); + if (!video) { + video = document.createElement("video"); + $viewport.appendChild(video); + } + } + _inputStream = _input_stream2['default'].createLiveStream(video); + _camera_access2['default'].request(video, _config.inputStream.constraints, function (err) { + if (!err) { + _inputStream.trigger("canrecord"); + } else { + return cb(err); + } + }); + } + + _inputStream.setAttribute("preload", "auto"); + _inputStream.setAttribute("autoplay", true); + _inputStream.setInputStream(_config.inputStream); + _inputStream.addEventListener("canrecord", canRecord.bind(undefined, cb)); + } + + function canRecord(cb) { + _barcode_locator2['default'].checkImageConstraints(_inputStream, _config.locator); + initCanvas(); + _framegrabber = _frame_grabber2['default'].create(_inputStream, _canvasContainer.dom.image); + initConfig(); + + if (_config.numOfWorkers > 0) { + initWorkers(function () { + console.log("Workers created"); + ready(cb); + }); + } else { + initializeData(); + ready(cb); + } + } + + function ready(cb) { + _inputStream.play(); + cb(); + } + + function initCanvas() { + if (typeof document !== "undefined") { + var $viewport = document.querySelector("#interactive.viewport"); + _canvasContainer.dom.image = document.querySelector("canvas.imgBuffer"); + if (!_canvasContainer.dom.image) { + _canvasContainer.dom.image = document.createElement("canvas"); + _canvasContainer.dom.image.className = "imgBuffer"; + if ($viewport && _config.inputStream.type == "ImageStream") { + $viewport.appendChild(_canvasContainer.dom.image); + } + } + _canvasContainer.ctx.image = _canvasContainer.dom.image.getContext("2d"); + _canvasContainer.dom.image.width = _inputStream.getCanvasSize().x; + _canvasContainer.dom.image.height = _inputStream.getCanvasSize().y; + + _canvasContainer.dom.overlay = document.querySelector("canvas.drawingBuffer"); + if (!_canvasContainer.dom.overlay) { + _canvasContainer.dom.overlay = document.createElement("canvas"); + _canvasContainer.dom.overlay.className = "drawingBuffer"; + if ($viewport) { + $viewport.appendChild(_canvasContainer.dom.overlay); + } + var clearFix = document.createElement("br"); + clearFix.setAttribute("clear", "all"); + if ($viewport) { + $viewport.appendChild(clearFix); + } + } + _canvasContainer.ctx.overlay = _canvasContainer.dom.overlay.getContext("2d"); + _canvasContainer.dom.overlay.width = _inputStream.getCanvasSize().x; + _canvasContainer.dom.overlay.height = _inputStream.getCanvasSize().y; + } + } + + function initBuffers(imageWrapper) { + if (imageWrapper) { + _inputImageWrapper = imageWrapper; + } else { + _inputImageWrapper = new _image_wrapper2['default']({ + x: _inputStream.getWidth(), + y: _inputStream.getHeight() + }); + } + + console.log(_inputImageWrapper.size); + _boxSize = [_glMatrix.vec2.clone([0, 0]), _glMatrix.vec2.clone([0, _inputImageWrapper.size.y]), _glMatrix.vec2.clone([_inputImageWrapper.size.x, _inputImageWrapper.size.y]), _glMatrix.vec2.clone([_inputImageWrapper.size.x, 0])]; + _barcode_locator2['default'].init(_inputImageWrapper, _config.locator); + } + + function getBoundingBoxes() { + if (_config.locate) { + return _barcode_locator2['default'].locate(); + } else { + return [[_glMatrix.vec2.clone(_boxSize[0]), _glMatrix.vec2.clone(_boxSize[1]), _glMatrix.vec2.clone(_boxSize[2]), _glMatrix.vec2.clone(_boxSize[3])]]; + } + } + + function transformResult(result) { + var topRight = _inputStream.getTopRight(), + xOffset = topRight.x, + yOffset = topRight.y, + i; + + if (!result || xOffset === 0 && yOffset === 0) { + return; + } + + if (result.line && result.line.length === 2) { + moveLine(result.line); + } + if (result.boxes && result.boxes.length > 0) { + for (i = 0; i < result.boxes.length; i++) { + moveBox(result.boxes[i]); + } + } + + function moveBox(box) { + var corner = box.length; + + while (corner--) { + box[corner][0] += xOffset; + box[corner][1] += yOffset; + } + } + + function moveLine(line) { + line[0].x += xOffset; + line[0].y += yOffset; + line[1].x += xOffset; + line[1].y += yOffset; + } + } + + function publishResult(result, imageData) { + if (_onUIThread) { + transformResult(result); + if (imageData && result && result.codeResult) { + if (_resultCollector) { + _resultCollector.addResult(imageData, _inputStream.getCanvasSize(), result.codeResult); + } + } + } + + _events2['default'].publish("processed", result); + if (result && result.codeResult) { + _events2['default'].publish("detected", result); + } + } + + function locateAndDecode() { + var result, boxes; + + boxes = getBoundingBoxes(); + if (boxes) { + result = _decoder.decodeFromBoundingBoxes(boxes); + result = result || {}; + result.boxes = boxes; + publishResult(result, _inputImageWrapper.data); + } else { + publishResult(); + } + } + + function update() { + var availableWorker; + + if (_onUIThread) { + if (_workerPool.length > 0) { + availableWorker = _workerPool.filter(function (workerThread) { + return !workerThread.busy; + })[0]; + if (availableWorker) { + _framegrabber.attachData(availableWorker.imageData); + } else { + return; // all workers are busy + } + } else { + _framegrabber.attachData(_inputImageWrapper.data); + } + if (_framegrabber.grab()) { + if (availableWorker) { + availableWorker.busy = true; + availableWorker.worker.postMessage({ + cmd: 'process', + imageData: availableWorker.imageData + }, [availableWorker.imageData.buffer]); + } else { + locateAndDecode(); + } + } + } else { + locateAndDecode(); + } + } + + function _start() { + _stopped = false; + (function frame() { + if (!_stopped) { + update(); + if (_onUIThread && _config.inputStream.type == "LiveStream") { + window.requestAnimFrame(frame); + } + } + })(); + } + + function initWorkers(cb) { + var i; + _workerPool = []; + + for (i = 0; i < _config.numOfWorkers; i++) { + initWorker(workerInitialized); + } + + function workerInitialized(workerThread) { + _workerPool.push(workerThread); + if (_workerPool.length >= _config.numOfWorkers) { + cb(); + } + } + } + + function initWorker(cb) { + var blobURL, + workerThread = { + worker: undefined, + imageData: new Uint8Array(_inputStream.getWidth() * _inputStream.getHeight()), + busy: true + }; + + blobURL = generateWorkerBlob(); + workerThread.worker = new Worker(blobURL); + + workerThread.worker.onmessage = function (e) { + if (e.data.event === 'initialized') { + URL.revokeObjectURL(blobURL); + workerThread.busy = false; + workerThread.imageData = new Uint8Array(e.data.imageData); + console.log("Worker initialized"); + return cb(workerThread); + } else if (e.data.event === 'processed') { + workerThread.imageData = new Uint8Array(e.data.imageData); + workerThread.busy = false; + publishResult(e.data.result, workerThread.imageData); + } else if (e.data.event === 'error') { + console.log("Worker error: " + e.data.message); + } + }; + + workerThread.worker.postMessage({ + cmd: 'init', + size: { x: _inputStream.getWidth(), y: _inputStream.getHeight() }, + imageData: workerThread.imageData, + config: _config + }, [workerThread.imageData.buffer]); + } + + function workerInterface(factory) { + window = self; + if (factory) { + /* jshint ignore:start */ + var Quagga = factory(); + if (!Quagga) { + self.postMessage({ 'event': 'error', message: 'Quagga could not be created' }); + return; + } + /* jshint ignore:end */ + } + /* jshint ignore:start */ + var imageWrapper; + + self.onmessage = function (e) { + if (e.data.cmd === 'init') { + var config = e.data.config; + config.numOfWorkers = 0; + imageWrapper = new Quagga.ImageWrapper({ + x: e.data.size.x, + y: e.data.size.y + }, new Uint8Array(e.data.imageData)); + Quagga.init(config, ready, imageWrapper); + Quagga.onProcessed(onProcessed); + } else if (e.data.cmd === 'process') { + imageWrapper.data = new Uint8Array(e.data.imageData); + Quagga.start(); + } else if (e.data.cmd === 'setReaders') { + Quagga.setReaders(e.data.readers); + } + }; + + function onProcessed(result) { + self.postMessage({ 'event': 'processed', imageData: imageWrapper.data, result: result }, [imageWrapper.data.buffer]); + } + + function ready() { + self.postMessage({ 'event': 'initialized', imageData: imageWrapper.data }, [imageWrapper.data.buffer]); + } + /* jshint ignore:end */ + } + + function generateWorkerBlob() { + var blob, factorySource; + + /* jshint ignore:start */ + if (typeof __factorySource__ !== 'undefined') { + factorySource = __factorySource__; + } + /* jshint ignore:end */ + + blob = new Blob(['(' + workerInterface.toString() + ')(' + factorySource + ');'], { type: 'text/javascript' }); + + return window.URL.createObjectURL(blob); + } + + function _setReaders(readers) { + if (_decoder) { + _decoder.setReaders(readers); + } else if (_onUIThread && _workerPool.length > 0) { + _workerPool.forEach(function (workerThread) { + workerThread.worker.postMessage({ cmd: 'setReaders', readers: readers }); + }); + } + } + + exports['default'] = { + init: function init(config, cb, imageWrapper) { + _config = merge({}, _config3['default'], config); + if (imageWrapper) { + _onUIThread = false; + initializeData(imageWrapper); + return cb(); + } else { + initInputStream(cb); + } + }, + start: function start() { + _start(); + }, + stop: function stop() { + _stopped = true; + _workerPool.forEach(function (workerThread) { + workerThread.worker.terminate(); + console.log("Worker terminated!"); + }); + _workerPool.length = 0; + if (_config.inputStream.type === "LiveStream") { + _camera_access2['default'].release(); + _inputStream.clearEventHandlers(); + } + }, + pause: function pause() { + _stopped = true; + }, + onDetected: function onDetected(callback) { + _events2['default'].subscribe("detected", callback); + }, + offDetected: function offDetected(callback) { + _events2['default'].unsubscribe("detected", callback); + }, + onProcessed: function onProcessed(callback) { + _events2['default'].subscribe("processed", callback); + }, + offProcessed: function offProcessed(callback) { + _events2['default'].unsubscribe("processed", callback); + }, + setReaders: function setReaders(readers) { + _setReaders(readers); + }, + registerResultCollector: function registerResultCollector(resultCollector) { + if (resultCollector && typeof resultCollector.addResult === 'function') { + _resultCollector = resultCollector; + } + }, + canvas: _canvasContainer, + decodeSingle: function decodeSingle(config, resultCallback) { + config = merge({ + inputStream: { + type: "ImageStream", + sequence: false, + size: 800, + src: config.src + }, + numOfWorkers: 1, + locator: { + halfSample: false + } + }, config); + this.init(config, function () { + _events2['default'].once("processed", function (result) { + _stopped = true; + resultCallback.call(null, result); + }, true); + _start(); + }); + }, + ImageWrapper: _image_wrapper2['default'], + ImageDebug: _image_debug2['default'], + ResultCollector: _result_collector2['default'] + }; + module.exports = exports['default']; + +/***/ }, +/* 2 */ +/***/ function(module, exports) { + + /* + * typedefs.js + * Normalizes browser-specific prefixes + */ + + 'use strict'; + + Object.defineProperty(exports, '__esModule', { + value: true + }); + if (typeof window !== 'undefined') { + window.requestAnimFrame = (function () { + return window.requestAnimationFrame || window.webkitRequestAnimationFrame || window.mozRequestAnimationFrame || window.oRequestAnimationFrame || window.msRequestAnimationFrame || function ( /* function FrameRequestCallback */callback, /* DOMElement Element */element) { + window.setTimeout(callback, 1000 / 60); + }; + })(); + + navigator.getUserMedia = navigator.getUserMedia || navigator.webkitGetUserMedia || navigator.mozGetUserMedia || navigator.msGetUserMedia; + window.URL = window.URL || window.webkitURL || window.mozURL || window.msURL; + } + Math.imul = Math.imul || function (a, b) { + var ah = a >>> 16 & 0xffff, + al = a & 0xffff, + bh = b >>> 16 & 0xffff, + bl = b & 0xffff; + // the shift by 0 fixes the sign on the high part + // the final |0 converts the unsigned value into a signed value + return al * bl + (ah * bl + al * bh << 16 >>> 0) | 0; + }; + + exports['default'] = {}; + module.exports = exports['default']; + +/***/ }, +/* 3 */ +/***/ function(module, exports, __webpack_require__) { + + 'use strict'; + + Object.defineProperty(exports, '__esModule', { + value: true + }); + + function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; } + + var _image_loader = __webpack_require__(4); + + var _image_loader2 = _interopRequireDefault(_image_loader); + + var InputStream = {}; + InputStream.createVideoStream = function (video) { + var that = {}, + _config = null, + _eventNames = ['canrecord', 'ended'], + _eventHandlers = {}, + _calculatedWidth, + _calculatedHeight, + _topRight = { x: 0, y: 0 }, + _canvasSize = { x: 0, y: 0 }; + + function initSize() { + var width = video.videoWidth, + height = video.videoHeight; + + _calculatedWidth = _config.size ? width / height > 1 ? _config.size : Math.floor(width / height * _config.size) : width; + _calculatedHeight = _config.size ? width / height > 1 ? Math.floor(height / width * _config.size) : _config.size : height; + + _canvasSize.x = _calculatedWidth; + _canvasSize.y = _calculatedHeight; + } + + that.getRealWidth = function () { + return video.videoWidth; + }; + + that.getRealHeight = function () { + return video.videoHeight; + }; + + that.getWidth = function () { + return _calculatedWidth; + }; + + that.getHeight = function () { + return _calculatedHeight; + }; + + that.setWidth = function (width) { + _calculatedWidth = width; + }; + + that.setHeight = function (height) { + _calculatedHeight = height; + }; + + that.setInputStream = function (config) { + _config = config; + video.src = typeof config.src !== 'undefined' ? config.src : ''; + }; + + that.ended = function () { + return video.ended; + }; + + that.getConfig = function () { + return _config; + }; + + that.setAttribute = function (name, value) { + video.setAttribute(name, value); + }; + + that.pause = function () { + video.pause(); + }; + + that.play = function () { + video.play(); + }; + + that.setCurrentTime = function (time) { + if (_config.type !== "LiveStream") video.currentTime = time; + }; + + that.addEventListener = function (event, f, bool) { + if (_eventNames.indexOf(event) !== -1) { + if (!_eventHandlers[event]) { + _eventHandlers[event] = []; + } + _eventHandlers[event].push(f); + } else { + video.addEventListener(event, f, bool); + } + }; + + that.clearEventHandlers = function () { + _eventNames.forEach(function (eventName) { + var handlers = _eventHandlers[eventName]; + if (handlers && handlers.length > 0) { + handlers.forEach(function (handler) { + video.removeEventListener(eventName, handler); + }); + } + }); + }; + + that.trigger = function (eventName, args) { + var j, + handlers = _eventHandlers[eventName]; + + if (eventName === 'canrecord') { + initSize(); + } + if (handlers && handlers.length > 0) { + for (j = 0; j < handlers.length; j++) { + handlers[j].apply(that, args); + } + } + }; + + that.setTopRight = function (topRight) { + _topRight.x = topRight.x; + _topRight.y = topRight.y; + }; + + that.getTopRight = function () { + return _topRight; + }; + + that.setCanvasSize = function (size) { + _canvasSize.x = size.x; + _canvasSize.y = size.y; + }; + + that.getCanvasSize = function () { + return _canvasSize; + }; + + that.getFrame = function () { + return video; + }; + + return that; + }; + + InputStream.createLiveStream = function (video) { + video.setAttribute("autoplay", true); + var that = InputStream.createVideoStream(video); + + that.ended = function () { + return false; + }; + + return that; + }; + + InputStream.createImageStream = function () { + var that = {}; + var _config = null; + + var width = 0, + height = 0, + frameIdx = 0, + paused = true, + loaded = false, + imgArray = null, + size = 0, + offset = 1, + baseUrl = null, + ended = false, + calculatedWidth, + calculatedHeight, + _eventNames = ['canrecord', 'ended'], + _eventHandlers = {}, + _topRight = { x: 0, y: 0 }, + _canvasSize = { x: 0, y: 0 }; + + function loadImages() { + loaded = false; + _image_loader2['default'].load(baseUrl, function (imgs) { + imgArray = imgs; + width = imgs[0].width; + height = imgs[0].height; + calculatedWidth = _config.size ? width / height > 1 ? _config.size : Math.floor(width / height * _config.size) : width; + calculatedHeight = _config.size ? width / height > 1 ? Math.floor(height / width * _config.size) : _config.size : height; + _canvasSize.x = calculatedWidth; + _canvasSize.y = calculatedHeight; + loaded = true; + frameIdx = 0; + setTimeout(function () { + publishEvent("canrecord", []); + }, 0); + }, offset, size, _config.sequence); + } + + function publishEvent(eventName, args) { + var j, + handlers = _eventHandlers[eventName]; + + if (handlers && handlers.length > 0) { + for (j = 0; j < handlers.length; j++) { + handlers[j].apply(that, args); + } + } + } + + that.trigger = publishEvent; + + that.getWidth = function () { + return calculatedWidth; + }; + + that.getHeight = function () { + return calculatedHeight; + }; + + that.setWidth = function (width) { + calculatedWidth = width; + }; + + that.setHeight = function (height) { + calculatedHeight = height; + }; + + that.getRealWidth = function () { + return width; + }; + + that.getRealHeight = function () { + return height; + }; + + that.setInputStream = function (stream) { + _config = stream; + if (stream.sequence === false) { + baseUrl = stream.src; + size = 1; + } else { + baseUrl = stream.src; + size = stream.length; + } + loadImages(); + }; + + that.ended = function () { + return ended; + }; + + that.setAttribute = function () {}; + + that.getConfig = function () { + return _config; + }; + + that.pause = function () { + paused = true; + }; + + that.play = function () { + paused = false; + }; + + that.setCurrentTime = function (time) { + frameIdx = time; + }; + + that.addEventListener = function (event, f) { + if (_eventNames.indexOf(event) !== -1) { + if (!_eventHandlers[event]) { + _eventHandlers[event] = []; + } + _eventHandlers[event].push(f); + } + }; + + that.setTopRight = function (topRight) { + _topRight.x = topRight.x; + _topRight.y = topRight.y; + }; + + that.getTopRight = function () { + return _topRight; + }; + + that.setCanvasSize = function (size) { + _canvasSize.x = size.x; + _canvasSize.y = size.y; + }; + + that.getCanvasSize = function () { + return _canvasSize; + }; + + that.getFrame = function () { + var frame; + + if (!loaded) { + return null; + } + if (!paused) { + frame = imgArray[frameIdx]; + if (frameIdx < size - 1) { + frameIdx++; + } else { + setTimeout(function () { + ended = true; + publishEvent("ended", []); + }, 0); + } + } + return frame; + }; + + return that; + }; + + exports['default'] = InputStream; + module.exports = exports['default']; + +/***/ }, +/* 4 */ +/***/ function(module, exports) { + + "use strict"; + + Object.defineProperty(exports, "__esModule", { + value: true + }); + var ImageLoader = {}; + ImageLoader.load = function (directory, callback, offset, size, sequence) { + var htmlImagesSrcArray = new Array(size), + htmlImagesArray = new Array(htmlImagesSrcArray.length), + i, + img, + num; + + if (sequence === false) { + htmlImagesSrcArray[0] = directory; + } else { + for (i = 0; i < htmlImagesSrcArray.length; i++) { + num = offset + i; + htmlImagesSrcArray[i] = directory + "image-" + ("00" + num).slice(-3) + ".jpg"; + } + } + htmlImagesArray.notLoaded = []; + htmlImagesArray.addImage = function (img) { + htmlImagesArray.notLoaded.push(img); + }; + htmlImagesArray.loaded = function (loadedImg) { + var notloadedImgs = htmlImagesArray.notLoaded; + for (var x = 0; x < notloadedImgs.length; x++) { + if (notloadedImgs[x] == loadedImg) { + notloadedImgs.splice(x, 1); + for (var y = 0; y < htmlImagesSrcArray.length; y++) { + var imgName = htmlImagesSrcArray[y].substr(htmlImagesSrcArray[y].lastIndexOf("/")); + if (loadedImg.src.lastIndexOf(imgName) != -1) { + htmlImagesArray[y] = loadedImg; + break; + } + } + break; + } + } + if (notloadedImgs.length === 0) { + console.log("Images loaded"); + callback.apply(null, [htmlImagesArray]); + } + }; + + for (i = 0; i < htmlImagesSrcArray.length; i++) { + img = new Image(); + htmlImagesArray.addImage(img); + addOnloadHandler(img, htmlImagesArray); + img.src = htmlImagesSrcArray[i]; + } + }; + + function addOnloadHandler(img, htmlImagesArray) { + img.onload = function () { + htmlImagesArray.loaded(this); + }; + } + + exports["default"] = ImageLoader; + module.exports = exports["default"]; + +/***/ }, +/* 5 */ +/***/ function(module, exports, __webpack_require__) { + + 'use strict'; + + Object.defineProperty(exports, '__esModule', { + value: true + }); + + function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; } + + var _subImage = __webpack_require__(6); + + var _subImage2 = _interopRequireDefault(_subImage); + + var _cv_utils = __webpack_require__(7); + + var _cv_utils2 = _interopRequireDefault(_cv_utils); + + var _array_helper = __webpack_require__(19); + + var _array_helper2 = _interopRequireDefault(_array_helper); + + var _glMatrix = __webpack_require__(9); + + /** + * Represents a basic image combining the data and size. + * In addition, some methods for manipulation are contained. + * @param size {x,y} The size of the image in pixel + * @param data {Array} If given, a flat array containing the pixel data + * @param ArrayType {Type} If given, the desired DataType of the Array (may be typed/non-typed) + * @param initialize {Boolean} Indicating if the array should be initialized on creation. + * @returns {ImageWrapper} + */ + function ImageWrapper(size, data, ArrayType, initialize) { + if (!data) { + if (ArrayType) { + this.data = new ArrayType(size.x * size.y); + if (ArrayType === Array && initialize) { + _array_helper2['default'].init(this.data, 0); + } + } else { + this.data = new Uint8Array(size.x * size.y); + if (Uint8Array === Array && initialize) { + _array_helper2['default'].init(this.data, 0); + } + } + } else { + this.data = data; + } + this.size = size; + } + + /** + * tests if a position is within the image with a given offset + * @param imgRef {x, y} The location to test + * @param border Number the padding value in pixel + * @returns {Boolean} true if location inside the image's border, false otherwise + * @see cvd/image.h + */ + ImageWrapper.prototype.inImageWithBorder = function (imgRef, border) { + return imgRef.x >= border && imgRef.y >= border && imgRef.x < this.size.x - border && imgRef.y < this.size.y - border; + }; + + /** + * Transforms an image according to the given affine-transformation matrix. + * @param inImg ImageWrapper a image containing the information to be extracted. + * @param outImg ImageWrapper the image to be filled. The whole image out image is filled by the in image. + * @param M mat2 the matrix used to map point in the out matrix to those in the in matrix + * @param inOrig vec2 origin in the in image + * @param outOrig vec2 origin in the out image + * @returns Number the number of pixels not in the in image + * @see cvd/vision.h + */ + ImageWrapper.transform = function (inImg, outImg, M, inOrig, outOrig) { + var w = outImg.size.x, + h = outImg.size.y, + iw = inImg.size.x, + ih = inImg.size.y; + var across = _glMatrix.vec2.clone([M[0], M[2]]); + var down = _glMatrix.vec2.clone([M[1], M[3]]); + var defaultValue = 0; + + var p0 = _glMatrix.vec2.subtract(inOrig, _glMatrix.mat2.xVec2(M, outOrig, _glMatrix.vec2.clone()), _glMatrix.vec2.clone()); + + var min_x = p0[0], + min_y = p0[1]; + var max_x = min_x, + max_y = min_y; + var p, i, j; + + var sampleFunc = ImageWrapper.sample; + + if (across[0] < 0) min_x += w * across[0];else max_x += w * across[0]; + + if (down[0] < 0) min_x += h * down[0];else max_x += h * down[0]; + + if (across[1] < 0) min_y += w * across[1];else max_y += w * across[1]; + + if (down[1] < 0) min_y += h * down[1];else max_y += h * down[1]; + + var carrigeReturn = _glMatrix.vec2.subtract(down, _glMatrix.vec2.scale(across, w, _glMatrix.vec2.clone()), _glMatrix.vec2.clone()); + + if (min_x >= 0 && min_y >= 0 && max_x < iw - 1 && max_y < ih - 1) { + p = p0; + for (i = 0; i < h; ++i, _glMatrix.vec2.add(p, carrigeReturn)) for (j = 0; j < w; ++j, _glMatrix.vec2.add(p, across)) outImg.set(j, i, sampleFunc(inImg, p[0], p[1])); + return 0; + } else { + var x_bound = iw - 1; + var y_bound = ih - 1; + var count = 0; + p = p0; + for (i = 0; i < h; ++i, _glMatrix.vec2.add(p, carrigeReturn)) { + for (j = 0; j < w; ++j, _glMatrix.vec2.add(p, across)) { + if (0 <= p[0] && 0 <= p[1] && p[0] < x_bound && p[1] < y_bound) { + outImg.set(j, i, sampleFunc(inImg, p[0], p[1])); + } else { + outImg.set(j, i, defaultValue);++count; + } + } + } + return count; + } + }; + + /** + * Performs bilinear sampling + * @param inImg Image to extract sample from + * @param x the x-coordinate + * @param y the y-coordinate + * @returns the sampled value + * @see cvd/vision.h + */ + ImageWrapper.sample = function (inImg, x, y) { + var lx = Math.floor(x); + var ly = Math.floor(y); + var w = inImg.size.x; + var base = ly * inImg.size.x + lx; + var a = inImg.data[base + 0]; + var b = inImg.data[base + 1]; + var c = inImg.data[base + w]; + var d = inImg.data[base + w + 1]; + var e = a - b; + x -= lx; + y -= ly; + + var result = Math.floor(x * (y * (e - c + d) - e) + y * (c - a) + a); + return result; + }; + + /** + * Initializes a given array. Sets each element to zero. + * @param array {Array} The array to initialize + */ + ImageWrapper.clearArray = function (array) { + var l = array.length; + while (l--) { + array[l] = 0; + } + }; + + /** + * Creates a {SubImage} from the current image ({this}). + * @param from {ImageRef} The position where to start the {SubImage} from. (top-left corner) + * @param size {ImageRef} The size of the resulting image + * @returns {SubImage} A shared part of the original image + */ + ImageWrapper.prototype.subImage = function (from, size) { + return new _subImage2['default'](from, size, this); + }; + + /** + * Creates an {ImageWrapper) and copies the needed underlying image-data area + * @param imageWrapper {ImageWrapper} The target {ImageWrapper} where the data should be copied + * @param from {ImageRef} The location where to copy from (top-left location) + */ + ImageWrapper.prototype.subImageAsCopy = function (imageWrapper, from) { + var sizeY = imageWrapper.size.y, + sizeX = imageWrapper.size.x; + var x, y; + for (x = 0; x < sizeX; x++) { + for (y = 0; y < sizeY; y++) { + imageWrapper.data[y * sizeX + x] = this.data[(from.y + y) * this.size.x + from.x + x]; + } + } + }; + + ImageWrapper.prototype.copyTo = function (imageWrapper) { + var length = this.data.length, + srcData = this.data, + dstData = imageWrapper.data; + + while (length--) { + dstData[length] = srcData[length]; + } + }; + + /** + * Retrieves a given pixel position from the image + * @param x {Number} The x-position + * @param y {Number} The y-position + * @returns {Number} The grayscale value at the pixel-position + */ + ImageWrapper.prototype.get = function (x, y) { + return this.data[y * this.size.x + x]; + }; + + /** + * Retrieves a given pixel position from the image + * @param x {Number} The x-position + * @param y {Number} The y-position + * @returns {Number} The grayscale value at the pixel-position + */ + ImageWrapper.prototype.getSafe = function (x, y) { + var i; + + if (!this.indexMapping) { + this.indexMapping = { + x: [], + y: [] + }; + for (i = 0; i < this.size.x; i++) { + this.indexMapping.x[i] = i; + this.indexMapping.x[i + this.size.x] = i; + } + for (i = 0; i < this.size.y; i++) { + this.indexMapping.y[i] = i; + this.indexMapping.y[i + this.size.y] = i; + } + } + return this.data[this.indexMapping.y[y + this.size.y] * this.size.x + this.indexMapping.x[x + this.size.x]]; + }; + + /** + * Sets a given pixel position in the image + * @param x {Number} The x-position + * @param y {Number} The y-position + * @param value {Number} The grayscale value to set + * @returns {ImageWrapper} The Image itself (for possible chaining) + */ + ImageWrapper.prototype.set = function (x, y, value) { + this.data[y * this.size.x + x] = value; + return this; + }; + + /** + * Sets the border of the image (1 pixel) to zero + */ + ImageWrapper.prototype.zeroBorder = function () { + var i, + width = this.size.x, + height = this.size.y, + data = this.data; + for (i = 0; i < width; i++) { + data[i] = data[(height - 1) * width + i] = 0; + } + for (i = 1; i < height - 1; i++) { + data[i * width] = data[i * width + (width - 1)] = 0; + } + }; + + /** + * Inverts a binary image in place + */ + ImageWrapper.prototype.invert = function () { + var data = this.data, + length = data.length; + + while (length--) { + data[length] = data[length] ? 0 : 1; + } + }; + + ImageWrapper.prototype.convolve = function (kernel) { + var x, + y, + kx, + ky, + kSize = kernel.length / 2 | 0, + accu = 0; + for (y = 0; y < this.size.y; y++) { + for (x = 0; x < this.size.x; x++) { + accu = 0; + for (ky = -kSize; ky <= kSize; ky++) { + for (kx = -kSize; kx <= kSize; kx++) { + accu += kernel[ky + kSize][kx + kSize] * this.getSafe(x + kx, y + ky); + } + } + this.data[y * this.size.x + x] = accu; + } + } + }; + + ImageWrapper.prototype.moments = function (labelcount) { + var data = this.data, + x, + y, + height = this.size.y, + width = this.size.x, + val, + ysq, + labelsum = [], + i, + label, + mu11, + mu02, + mu20, + x_, + y_, + tmp, + result = [], + PI = Math.PI, + PI_4 = PI / 4; + + if (labelcount <= 0) { + return result; + } + + for (i = 0; i < labelcount; i++) { + labelsum[i] = { + m00: 0, + m01: 0, + m10: 0, + m11: 0, + m02: 0, + m20: 0, + theta: 0, + rad: 0 + }; + } + + for (y = 0; y < height; y++) { + ysq = y * y; + for (x = 0; x < width; x++) { + val = data[y * width + x]; + if (val > 0) { + label = labelsum[val - 1]; + label.m00 += 1; + label.m01 += y; + label.m10 += x; + label.m11 += x * y; + label.m02 += ysq; + label.m20 += x * x; + } + } + } + + for (i = 0; i < labelcount; i++) { + label = labelsum[i]; + if (!isNaN(label.m00) && label.m00 !== 0) { + x_ = label.m10 / label.m00; + y_ = label.m01 / label.m00; + mu11 = label.m11 / label.m00 - x_ * y_; + mu02 = label.m02 / label.m00 - y_ * y_; + mu20 = label.m20 / label.m00 - x_ * x_; + tmp = (mu02 - mu20) / (2 * mu11); + tmp = 0.5 * Math.atan(tmp) + (mu11 >= 0 ? PI_4 : -PI_4) + PI; + label.theta = (tmp * 180 / PI + 90) % 180 - 90; + if (label.theta < 0) { + label.theta += 180; + } + label.rad = tmp > PI ? tmp - PI : tmp; + label.vec = _glMatrix.vec2.clone([Math.cos(tmp), Math.sin(tmp)]); + result.push(label); + } + } + + return result; + }; + + /** + * Displays the {ImageWrapper} in a given canvas + * @param canvas {Canvas} The canvas element to write to + * @param scale {Number} Scale which is applied to each pixel-value + */ + ImageWrapper.prototype.show = function (canvas, scale) { + var ctx, frame, data, current, pixel, x, y; + + if (!scale) { + scale = 1.0; + } + ctx = canvas.getContext('2d'); + canvas.width = this.size.x; + canvas.height = this.size.y; + frame = ctx.getImageData(0, 0, canvas.width, canvas.height); + data = frame.data; + current = 0; + for (y = 0; y < this.size.y; y++) { + for (x = 0; x < this.size.x; x++) { + pixel = y * this.size.x + x; + current = this.get(x, y) * scale; + data[pixel * 4 + 0] = current; + data[pixel * 4 + 1] = current; + data[pixel * 4 + 2] = current; + data[pixel * 4 + 3] = 255; + } + } + //frame.data = data; + ctx.putImageData(frame, 0, 0); + }; + + /** + * Displays the {SubImage} in a given canvas + * @param canvas {Canvas} The canvas element to write to + * @param scale {Number} Scale which is applied to each pixel-value + */ + ImageWrapper.prototype.overlay = function (canvas, scale, from) { + if (!scale || scale < 0 || scale > 360) { + scale = 360; + } + var hsv = [0, 1, 1]; + var rgb = [0, 0, 0]; + var whiteRgb = [255, 255, 255]; + var blackRgb = [0, 0, 0]; + var result = []; + var ctx = canvas.getContext('2d'); + var frame = ctx.getImageData(from.x, from.y, this.size.x, this.size.y); + var data = frame.data; + var length = this.data.length; + while (length--) { + hsv[0] = this.data[length] * scale; + result = hsv[0] <= 0 ? whiteRgb : hsv[0] >= 360 ? blackRgb : _cv_utils2['default'].hsv2rgb(hsv, rgb); + data[length * 4 + 0] = result[0]; + data[length * 4 + 1] = result[1]; + data[length * 4 + 2] = result[2]; + data[length * 4 + 3] = 255; + } + ctx.putImageData(frame, from.x, from.y); + }; + + exports['default'] = ImageWrapper; + module.exports = exports['default']; + +/***/ }, +/* 6 */ +/***/ function(module, exports) { + + /** + * Construct representing a part of another {ImageWrapper}. Shares data + * between the parent and the child. + * @param from {ImageRef} The position where to start the {SubImage} from. (top-left corner) + * @param size {ImageRef} The size of the resulting image + * @param I {ImageWrapper} The {ImageWrapper} to share from + * @returns {SubImage} A shared part of the original image + */ + 'use strict'; + + Object.defineProperty(exports, '__esModule', { + value: true + }); + function SubImage(from, size, I) { + if (!I) { + I = { + data: null, + size: size + }; + } + this.data = I.data; + this.originalSize = I.size; + this.I = I; + + this.from = from; + this.size = size; + } + + /** + * Displays the {SubImage} in a given canvas + * @param canvas {Canvas} The canvas element to write to + * @param scale {Number} Scale which is applied to each pixel-value + */ + SubImage.prototype.show = function (canvas, scale) { + var ctx, frame, data, current, y, x, pixel; + + if (!scale) { + scale = 1.0; + } + ctx = canvas.getContext('2d'); + canvas.width = this.size.x; + canvas.height = this.size.y; + frame = ctx.getImageData(0, 0, canvas.width, canvas.height); + data = frame.data; + current = 0; + for (y = 0; y < this.size.y; y++) { + for (x = 0; x < this.size.x; x++) { + pixel = y * this.size.x + x; + current = this.get(x, y) * scale; + data[pixel * 4 + 0] = current; + data[pixel * 4 + 1] = current; + data[pixel * 4 + 2] = current; + data[pixel * 4 + 3] = 255; + } + } + frame.data = data; + ctx.putImageData(frame, 0, 0); + }; + + /** + * Retrieves a given pixel position from the {SubImage} + * @param x {Number} The x-position + * @param y {Number} The y-position + * @returns {Number} The grayscale value at the pixel-position + */ + SubImage.prototype.get = function (x, y) { + return this.data[(this.from.y + y) * this.originalSize.x + this.from.x + x]; + }; + + /** + * Updates the underlying data from a given {ImageWrapper} + * @param image {ImageWrapper} The updated image + */ + SubImage.prototype.updateData = function (image) { + this.originalSize = image.size; + this.data = image.data; + }; + + /** + * Updates the position of the shared area + * @param from {x,y} The new location + * @returns {SubImage} returns {this} for possible chaining + */ + SubImage.prototype.updateFrom = function (from) { + this.from = from; + return this; + }; + + exports['default'] = SubImage; + module.exports = exports['default']; + +/***/ }, +/* 7 */ +/***/ function(module, exports, __webpack_require__) { + + 'use strict'; + + Object.defineProperty(exports, '__esModule', { + value: true + }); + + function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; } + + var _cluster = __webpack_require__(8); + + var _cluster2 = _interopRequireDefault(_cluster); + + var _array_helper = __webpack_require__(19); + + var _array_helper2 = _interopRequireDefault(_array_helper); + + var _glMatrix = __webpack_require__(9); + + var CVUtils = {}; + + /** + * @param x x-coordinate + * @param y y-coordinate + * @return ImageReference {x,y} Coordinate + */ + CVUtils.imageRef = function (x, y) { + var that = { + x: x, + y: y, + toVec2: function toVec2() { + return _glMatrix.vec2.clone([this.x, this.y]); + }, + toVec3: function toVec3() { + return _glMatrix.vec3.clone([this.x, this.y, 1]); + }, + round: function round() { + this.x = this.x > 0.0 ? Math.floor(this.x + 0.5) : Math.floor(this.x - 0.5); + this.y = this.y > 0.0 ? Math.floor(this.y + 0.5) : Math.floor(this.y - 0.5); + return this; + } + }; + return that; + }; + + /** + * Computes an integral image of a given grayscale image. + * @param imageDataContainer {ImageDataContainer} the image to be integrated + */ + CVUtils.computeIntegralImage2 = function (imageWrapper, integralWrapper) { + var imageData = imageWrapper.data; + var width = imageWrapper.size.x; + var height = imageWrapper.size.y; + var integralImageData = integralWrapper.data; + var sum = 0, + posA = 0, + posB = 0, + posC = 0, + posD = 0, + x, + y; + + // sum up first column + posB = width; + sum = 0; + for (y = 1; y < height; y++) { + sum += imageData[posA]; + integralImageData[posB] += sum; + posA += width; + posB += width; + } + + posA = 0; + posB = 1; + sum = 0; + for (x = 1; x < width; x++) { + sum += imageData[posA]; + integralImageData[posB] += sum; + posA++; + posB++; + } + + for (y = 1; y < height; y++) { + posA = y * width + 1; + posB = (y - 1) * width + 1; + posC = y * width; + posD = (y - 1) * width; + for (x = 1; x < width; x++) { + integralImageData[posA] += imageData[posA] + integralImageData[posB] + integralImageData[posC] - integralImageData[posD]; + posA++; + posB++; + posC++; + posD++; + } + } + }; + + CVUtils.computeIntegralImage = function (imageWrapper, integralWrapper) { + var imageData = imageWrapper.data; + var width = imageWrapper.size.x; + var height = imageWrapper.size.y; + var integralImageData = integralWrapper.data; + var sum = 0; + + // sum up first row + for (var i = 0; i < width; i++) { + sum += imageData[i]; + integralImageData[i] = sum; + } + + for (var v = 1; v < height; v++) { + sum = 0; + for (var u = 0; u < width; u++) { + sum += imageData[v * width + u]; + integralImageData[v * width + u] = sum + integralImageData[(v - 1) * width + u]; + } + } + }; + + CVUtils.thresholdImage = function (imageWrapper, threshold, targetWrapper) { + if (!targetWrapper) { + targetWrapper = imageWrapper; + } + var imageData = imageWrapper.data, + length = imageData.length, + targetData = targetWrapper.data; + + while (length--) { + targetData[length] = imageData[length] < threshold ? 1 : 0; + } + }; + + CVUtils.computeHistogram = function (imageWrapper, bitsPerPixel) { + if (!bitsPerPixel) { + bitsPerPixel = 8; + } + var imageData = imageWrapper.data, + length = imageData.length, + bitShift = 8 - bitsPerPixel, + bucketCnt = 1 << bitsPerPixel, + hist = new Int32Array(bucketCnt); + + while (length--) { + hist[imageData[length] >> bitShift]++; + } + return hist; + }; + + CVUtils.sharpenLine = function (line) { + var i, + length = line.length, + left = line[0], + center = line[1], + right; + + for (i = 1; i < length - 1; i++) { + right = line[i + 1]; + // -1 4 -1 kernel + line[i - 1] = center * 2 - left - right & 255; + left = center; + center = right; + } + return line; + }; + + CVUtils.determineOtsuThreshold = function (imageWrapper, bitsPerPixel) { + if (!bitsPerPixel) { + bitsPerPixel = 8; + } + var hist, + threshold, + bitShift = 8 - bitsPerPixel; + + function px(init, end) { + var sum = 0, + i; + for (i = init; i <= end; i++) { + sum += hist[i]; + } + return sum; + } + + function mx(init, end) { + var i, + sum = 0; + + for (i = init; i <= end; i++) { + sum += i * hist[i]; + } + + return sum; + } + + function determineThreshold() { + var vet = [0], + p1, + p2, + p12, + k, + m1, + m2, + m12, + max = (1 << bitsPerPixel) - 1; + + hist = CVUtils.computeHistogram(imageWrapper, bitsPerPixel); + for (k = 1; k < max; k++) { + p1 = px(0, k); + p2 = px(k + 1, max); + p12 = p1 * p2; + if (p12 === 0) { + p12 = 1; + } + m1 = mx(0, k) * p2; + m2 = mx(k + 1, max) * p1; + m12 = m1 - m2; + vet[k] = m12 * m12 / p12; + } + return _array_helper2['default'].maxIndex(vet); + } + + threshold = determineThreshold(); + return threshold << bitShift; + }; + + CVUtils.otsuThreshold = function (imageWrapper, targetWrapper) { + var threshold = CVUtils.determineOtsuThreshold(imageWrapper); + + CVUtils.thresholdImage(imageWrapper, threshold, targetWrapper); + return threshold; + }; + + // local thresholding + CVUtils.computeBinaryImage = function (imageWrapper, integralWrapper, targetWrapper) { + CVUtils.computeIntegralImage(imageWrapper, integralWrapper); + + if (!targetWrapper) { + targetWrapper = imageWrapper; + } + var imageData = imageWrapper.data; + var targetData = targetWrapper.data; + var width = imageWrapper.size.x; + var height = imageWrapper.size.y; + var integralImageData = integralWrapper.data; + var sum = 0, + v, + u, + kernel = 3, + A, + B, + C, + D, + avg, + size = (kernel * 2 + 1) * (kernel * 2 + 1); + + // clear out top & bottom-border + for (v = 0; v <= kernel; v++) { + for (u = 0; u < width; u++) { + targetData[v * width + u] = 0; + targetData[(height - 1 - v) * width + u] = 0; + } + } + + // clear out left & right border + for (v = kernel; v < height - kernel; v++) { + for (u = 0; u <= kernel; u++) { + targetData[v * width + u] = 0; + targetData[v * width + (width - 1 - u)] = 0; + } + } + + for (v = kernel + 1; v < height - kernel - 1; v++) { + for (u = kernel + 1; u < width - kernel; u++) { + A = integralImageData[(v - kernel - 1) * width + (u - kernel - 1)]; + B = integralImageData[(v - kernel - 1) * width + (u + kernel)]; + C = integralImageData[(v + kernel) * width + (u - kernel - 1)]; + D = integralImageData[(v + kernel) * width + (u + kernel)]; + sum = D - C - B + A; + avg = sum / size; + targetData[v * width + u] = imageData[v * width + u] > avg + 5 ? 0 : 1; + } + } + }; + + CVUtils.cluster = function (points, threshold, property) { + var i, + k, + cluster, + point, + clusters = []; + + if (!property) { + property = "rad"; + } + + function addToCluster(point) { + var found = false; + for (k = 0; k < clusters.length; k++) { + cluster = clusters[k]; + if (cluster.fits(point)) { + cluster.add(point); + found = true; + } + } + return found; + } + + // iterate over each cloud + for (i = 0; i < points.length; i++) { + point = _cluster2['default'].createPoint(points[i], i, property); + if (!addToCluster(point)) { + clusters.push(_cluster2['default'].create(point, threshold)); + } + } + + return clusters; + }; + + CVUtils.Tracer = { + trace: function trace(points, vec) { + var iteration, + maxIterations = 10, + top = [], + result = [], + centerPos = 0, + currentPos = 0; + + function trace(idx, forward) { + var from, + to, + toIdx, + predictedPos, + thresholdX = 1, + thresholdY = Math.abs(vec[1] / 10), + found = false; + + function match(pos, predicted) { + if (pos.x > predicted.x - thresholdX && pos.x < predicted.x + thresholdX && pos.y > predicted.y - thresholdY && pos.y < predicted.y + thresholdY) { + return true; + } else { + return false; + } + } + + // check if the next index is within the vec specifications + // if not, check as long as the threshold is met + + from = points[idx]; + if (forward) { + predictedPos = { + x: from.x + vec[0], + y: from.y + vec[1] + }; + } else { + predictedPos = { + x: from.x - vec[0], + y: from.y - vec[1] + }; + } + + toIdx = forward ? idx + 1 : idx - 1; + to = points[toIdx]; + while (to && (found = match(to, predictedPos)) !== true && Math.abs(to.y - from.y) < vec[1]) { + toIdx = forward ? toIdx + 1 : toIdx - 1; + to = points[toIdx]; + } + + return found ? toIdx : null; + } + + for (iteration = 0; iteration < maxIterations; iteration++) { + // randomly select point to start with + centerPos = Math.floor(Math.random() * points.length); + + // trace forward + top = []; + currentPos = centerPos; + top.push(points[currentPos]); + while ((currentPos = trace(currentPos, true)) !== null) { + top.push(points[currentPos]); + } + if (centerPos > 0) { + currentPos = centerPos; + while ((currentPos = trace(currentPos, false)) !== null) { + top.push(points[currentPos]); + } + } + + if (top.length > result.length) { + result = top; + } + } + + return result; + } + }; + + CVUtils.DILATE = 1; + CVUtils.ERODE = 2; + + CVUtils.dilate = function (inImageWrapper, outImageWrapper) { + var v, + u, + inImageData = inImageWrapper.data, + outImageData = outImageWrapper.data, + height = inImageWrapper.size.y, + width = inImageWrapper.size.x, + sum, + yStart1, + yStart2, + xStart1, + xStart2; + + for (v = 1; v < height - 1; v++) { + for (u = 1; u < width - 1; u++) { + yStart1 = v - 1; + yStart2 = v + 1; + xStart1 = u - 1; + xStart2 = u + 1; + sum = inImageData[yStart1 * width + xStart1] /* + inImageData[yStart1*width+u] */ + inImageData[yStart1 * width + xStart2] + + /* inImageData[v*width+xStart1] + */ + inImageData[v * width + u] + /* inImageData[v*width+xStart2] +*/ + inImageData[yStart2 * width + xStart1] /* + inImageData[yStart2*width+u]*/ + inImageData[yStart2 * width + xStart2]; + outImageData[v * width + u] = sum > 0 ? 1 : 0; + } + } + }; + + CVUtils.erode = function (inImageWrapper, outImageWrapper) { + var v, + u, + inImageData = inImageWrapper.data, + outImageData = outImageWrapper.data, + height = inImageWrapper.size.y, + width = inImageWrapper.size.x, + sum, + yStart1, + yStart2, + xStart1, + xStart2; + + for (v = 1; v < height - 1; v++) { + for (u = 1; u < width - 1; u++) { + yStart1 = v - 1; + yStart2 = v + 1; + xStart1 = u - 1; + xStart2 = u + 1; + sum = inImageData[yStart1 * width + xStart1] /* + inImageData[yStart1*width+u] */ + inImageData[yStart1 * width + xStart2] + + /* inImageData[v*width+xStart1] + */ + inImageData[v * width + u] + /* inImageData[v*width+xStart2] +*/ + inImageData[yStart2 * width + xStart1] /* + inImageData[yStart2*width+u]*/ + inImageData[yStart2 * width + xStart2]; + outImageData[v * width + u] = sum === 5 ? 1 : 0; + } + } + }; + + CVUtils.subtract = function (aImageWrapper, bImageWrapper, resultImageWrapper) { + if (!resultImageWrapper) { + resultImageWrapper = aImageWrapper; + } + var length = aImageWrapper.data.length, + aImageData = aImageWrapper.data, + bImageData = bImageWrapper.data, + cImageData = resultImageWrapper.data; + + while (length--) { + cImageData[length] = aImageData[length] - bImageData[length]; + } + }; + + CVUtils.bitwiseOr = function (aImageWrapper, bImageWrapper, resultImageWrapper) { + if (!resultImageWrapper) { + resultImageWrapper = aImageWrapper; + } + var length = aImageWrapper.data.length, + aImageData = aImageWrapper.data, + bImageData = bImageWrapper.data, + cImageData = resultImageWrapper.data; + + while (length--) { + cImageData[length] = aImageData[length] || bImageData[length]; + } + }; + + CVUtils.countNonZero = function (imageWrapper) { + var length = imageWrapper.data.length, + data = imageWrapper.data, + sum = 0; + + while (length--) { + sum += data[length]; + } + return sum; + }; + + CVUtils.topGeneric = function (list, top, scoreFunc) { + var i, + minIdx = 0, + min = 0, + queue = [], + score, + hit, + pos; + + for (i = 0; i < top; i++) { + queue[i] = { + score: 0, + item: null + }; + } + + for (i = 0; i < list.length; i++) { + score = scoreFunc.apply(this, [list[i]]); + if (score > min) { + hit = queue[minIdx]; + hit.score = score; + hit.item = list[i]; + min = Number.MAX_VALUE; + for (pos = 0; pos < top; pos++) { + if (queue[pos].score < min) { + min = queue[pos].score; + minIdx = pos; + } + } + } + } + + return queue; + }; + + CVUtils.grayArrayFromImage = function (htmlImage, offsetX, ctx, array) { + ctx.drawImage(htmlImage, offsetX, 0, htmlImage.width, htmlImage.height); + var ctxData = ctx.getImageData(offsetX, 0, htmlImage.width, htmlImage.height).data; + CVUtils.computeGray(ctxData, array); + }; + + CVUtils.grayArrayFromContext = function (ctx, size, offset, array) { + var ctxData = ctx.getImageData(offset.x, offset.y, size.x, size.y).data; + CVUtils.computeGray(ctxData, array); + }; + + CVUtils.grayAndHalfSampleFromCanvasData = function (canvasData, size, outArray) { + var topRowIdx = 0; + var bottomRowIdx = size.x; + var endIdx = Math.floor(canvasData.length / 4); + var outWidth = size.x / 2; + var outImgIdx = 0; + var inWidth = size.x; + var i; + + while (bottomRowIdx < endIdx) { + for (i = 0; i < outWidth; i++) { + outArray[outImgIdx] = Math.floor((0.299 * canvasData[topRowIdx * 4 + 0] + 0.587 * canvasData[topRowIdx * 4 + 1] + 0.114 * canvasData[topRowIdx * 4 + 2] + (0.299 * canvasData[(topRowIdx + 1) * 4 + 0] + 0.587 * canvasData[(topRowIdx + 1) * 4 + 1] + 0.114 * canvasData[(topRowIdx + 1) * 4 + 2]) + (0.299 * canvasData[bottomRowIdx * 4 + 0] + 0.587 * canvasData[bottomRowIdx * 4 + 1] + 0.114 * canvasData[bottomRowIdx * 4 + 2]) + (0.299 * canvasData[(bottomRowIdx + 1) * 4 + 0] + 0.587 * canvasData[(bottomRowIdx + 1) * 4 + 1] + 0.114 * canvasData[(bottomRowIdx + 1) * 4 + 2])) / 4); + outImgIdx++; + topRowIdx = topRowIdx + 2; + bottomRowIdx = bottomRowIdx + 2; + } + topRowIdx = topRowIdx + inWidth; + bottomRowIdx = bottomRowIdx + inWidth; + } + }; + + CVUtils.computeGray = function (imageData, outArray, config) { + var l = imageData.length / 4 | 0, + i, + singleChannel = config && config.singleChannel === true; + + if (singleChannel) { + for (i = 0; i < l; i++) { + outArray[i] = imageData[i * 4 + 0]; + } + } else { + for (i = 0; i < l; i++) { + outArray[i] = Math.floor(0.299 * imageData[i * 4 + 0] + 0.587 * imageData[i * 4 + 1] + 0.114 * imageData[i * 4 + 2]); + } + } + }; + + CVUtils.loadImageArray = function (src, callback, canvas) { + if (!canvas) canvas = document.createElement('canvas'); + var img = new Image(); + img.callback = callback; + img.onload = function () { + canvas.width = this.width; + canvas.height = this.height; + var ctx = canvas.getContext('2d'); + ctx.drawImage(this, 0, 0); + var array = new Uint8Array(this.width * this.height); + ctx.drawImage(this, 0, 0); + var data = ctx.getImageData(0, 0, this.width, this.height).data; + CVUtils.computeGray(data, array); + this.callback(array, { + x: this.width, + y: this.height + }, this); + }; + img.src = src; + }; + + /** + * @param inImg {ImageWrapper} input image to be sampled + * @param outImg {ImageWrapper} to be stored in + */ + CVUtils.halfSample = function (inImgWrapper, outImgWrapper) { + var inImg = inImgWrapper.data; + var inWidth = inImgWrapper.size.x; + var outImg = outImgWrapper.data; + var topRowIdx = 0; + var bottomRowIdx = inWidth; + var endIdx = inImg.length; + var outWidth = inWidth / 2; + var outImgIdx = 0; + while (bottomRowIdx < endIdx) { + for (var i = 0; i < outWidth; i++) { + outImg[outImgIdx] = Math.floor((inImg[topRowIdx] + inImg[topRowIdx + 1] + inImg[bottomRowIdx] + inImg[bottomRowIdx + 1]) / 4); + outImgIdx++; + topRowIdx = topRowIdx + 2; + bottomRowIdx = bottomRowIdx + 2; + } + topRowIdx = topRowIdx + inWidth; + bottomRowIdx = bottomRowIdx + inWidth; + } + }; + + CVUtils.hsv2rgb = function (hsv, rgb) { + var h = hsv[0], + s = hsv[1], + v = hsv[2], + c = v * s, + x = c * (1 - Math.abs(h / 60 % 2 - 1)), + m = v - c, + r = 0, + g = 0, + b = 0; + rgb = rgb || [0, 0, 0]; + + if (h < 60) { + r = c; + g = x; + } else if (h < 120) { + r = x; + g = c; + } else if (h < 180) { + g = c; + b = x; + } else if (h < 240) { + g = x; + b = c; + } else if (h < 300) { + r = x; + b = c; + } else if (h < 360) { + r = c; + b = x; + } + rgb[0] = (r + m) * 255 | 0; + rgb[1] = (g + m) * 255 | 0; + rgb[2] = (b + m) * 255 | 0; + return rgb; + }; + + CVUtils._computeDivisors = function (n) { + var largeDivisors = [], + divisors = [], + i; + + for (i = 1; i < Math.sqrt(n) + 1; i++) { + if (n % i === 0) { + divisors.push(i); + if (i !== n / i) { + largeDivisors.unshift(Math.floor(n / i)); + } + } + } + return divisors.concat(largeDivisors); + }; + + CVUtils._computeIntersection = function (arr1, arr2) { + var i = 0, + j = 0, + result = []; + + while (i < arr1.length && j < arr2.length) { + if (arr1[i] === arr2[j]) { + result.push(arr1[i]); + i++; + j++; + } else if (arr1[i] > arr2[j]) { + j++; + } else { + i++; + } + } + return result; + }; + + CVUtils.calculatePatchSize = function (patchSize, imgSize) { + var divisorsX = this._computeDivisors(imgSize.x), + divisorsY = this._computeDivisors(imgSize.y), + wideSide = Math.max(imgSize.x, imgSize.y), + common = this._computeIntersection(divisorsX, divisorsY), + nrOfPatchesList = [8, 10, 15, 20, 32, 60, 80], + nrOfPatchesMap = { + "x-small": 5, + "small": 4, + "medium": 3, + "large": 2, + "x-large": 1 + }, + nrOfPatchesIdx = nrOfPatchesMap[patchSize] || nrOfPatchesMap.medium, + nrOfPatches = nrOfPatchesList[nrOfPatchesIdx], + desiredPatchSize = Math.floor(wideSide / nrOfPatches), + optimalPatchSize; + + function findPatchSizeForDivisors(divisors) { + var i = 0, + found = divisors[Math.floor(divisors.length / 2)]; + + while (i < divisors.length - 1 && divisors[i] < desiredPatchSize) { + i++; + } + if (i > 0) { + if (Math.abs(divisors[i] - desiredPatchSize) > Math.abs(divisors[i - 1] - desiredPatchSize)) { + found = divisors[i - 1]; + } else { + found = divisors[i]; + } + } + if (desiredPatchSize / found < nrOfPatchesList[nrOfPatchesIdx + 1] / nrOfPatchesList[nrOfPatchesIdx] && desiredPatchSize / found > nrOfPatchesList[nrOfPatchesIdx - 1] / nrOfPatchesList[nrOfPatchesIdx]) { + return { x: found, y: found }; + } + return null; + } + + optimalPatchSize = findPatchSizeForDivisors(common); + if (!optimalPatchSize) { + optimalPatchSize = findPatchSizeForDivisors(this._computeDivisors(wideSide)); + if (!optimalPatchSize) { + optimalPatchSize = findPatchSizeForDivisors(this._computeDivisors(desiredPatchSize * nrOfPatches)); + } + } + return optimalPatchSize; + }; + + CVUtils._parseCSSDimensionValues = function (value) { + var dimension = { + value: parseFloat(value), + unit: value.indexOf("%") === value.length - 1 ? "%" : "%" + }; + + return dimension; + }; + + CVUtils._dimensionsConverters = { + top: function top(dimension, context) { + if (dimension.unit === "%") { + return Math.floor(context.height * (dimension.value / 100)); + } + }, + right: function right(dimension, context) { + if (dimension.unit === "%") { + return Math.floor(context.width - context.width * (dimension.value / 100)); + } + }, + bottom: function bottom(dimension, context) { + if (dimension.unit === "%") { + return Math.floor(context.height - context.height * (dimension.value / 100)); + } + }, + left: function left(dimension, context) { + if (dimension.unit === "%") { + return Math.floor(context.width * (dimension.value / 100)); + } + } + }; + + CVUtils.computeImageArea = function (inputWidth, inputHeight, area) { + var context = { width: inputWidth, height: inputHeight }; + + var parsedArea = Object.keys(area).reduce(function (result, key) { + var value = area[key], + parsed = CVUtils._parseCSSDimensionValues(value), + calculated = CVUtils._dimensionsConverters[key](parsed, context); + + result[key] = calculated; + return result; + }, {}); + + return { + sx: parsedArea.left, + sy: parsedArea.top, + sw: parsedArea.right - parsedArea.left, + sh: parsedArea.bottom - parsedArea.top + }; + }; + + exports['default'] = CVUtils; + module.exports = exports['default']; + +/***/ }, +/* 8 */ +/***/ function(module, exports, __webpack_require__) { + + 'use strict'; + + Object.defineProperty(exports, '__esModule', { + value: true + }); + + var _glMatrix = __webpack_require__(9); + + /** + * Creates a cluster for grouping similar orientations of datapoints + */ + exports['default'] = { + create: function create(point, threshold) { + var points = [], + center = { + rad: 0, + vec: _glMatrix.vec2.clone([0, 0]) + }, + pointMap = {}; + + function init() { + _add(point); + updateCenter(); + } + + function _add(point) { + pointMap[point.id] = point; + points.push(point); + } + + function updateCenter() { + var i, + sum = 0; + for (i = 0; i < points.length; i++) { + sum += points[i].rad; + } + center.rad = sum / points.length; + center.vec = _glMatrix.vec2.clone([Math.cos(center.rad), Math.sin(center.rad)]); + } + + init(); + + return { + add: function add(point) { + if (!pointMap[point.id]) { + _add(point); + updateCenter(); + } + }, + fits: function fits(point) { + // check cosine similarity to center-angle + var similarity = Math.abs(_glMatrix.vec2.dot(point.point.vec, center.vec)); + if (similarity > threshold) { + return true; + } + return false; + }, + getPoints: function getPoints() { + return points; + }, + getCenter: function getCenter() { + return center; + } + }; + }, + createPoint: function createPoint(point, id, property) { + return { + rad: point[property], + point: point, + id: id + }; + } + }; + module.exports = exports['default']; + +/***/ }, +/* 9 */ +/***/ function(module, exports, __webpack_require__) { + + /** + * @fileoverview gl-matrix - High performance matrix and vector operations + * @author Brandon Jones + * @author Colin MacKenzie IV + * @version 2.3.0 + */ + + /* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV. + + Permission is hereby granted, free of charge, to any person obtaining a copy + of this software and associated documentation files (the "Software"), to deal + in the Software without restriction, including without limitation the rights + to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + copies of the Software, and to permit persons to whom the Software is + furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included in + all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + THE SOFTWARE. */ + // END HEADER + + exports.glMatrix = __webpack_require__(10); + exports.mat2 = __webpack_require__(11); + exports.mat2d = __webpack_require__(12); + exports.mat3 = __webpack_require__(13); + exports.mat4 = __webpack_require__(14); + exports.quat = __webpack_require__(15); + exports.vec2 = __webpack_require__(18); + exports.vec3 = __webpack_require__(16); + exports.vec4 = __webpack_require__(17); + +/***/ }, +/* 10 */ +/***/ function(module, exports) { + + /* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV. + + Permission is hereby granted, free of charge, to any person obtaining a copy + of this software and associated documentation files (the "Software"), to deal + in the Software without restriction, including without limitation the rights + to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + copies of the Software, and to permit persons to whom the Software is + furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included in + all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + THE SOFTWARE. */ + + /** + * @class Common utilities + * @name glMatrix + */ + var glMatrix = {}; + + // Constants + glMatrix.EPSILON = 0.000001; + glMatrix.ARRAY_TYPE = (typeof Float32Array !== 'undefined') ? Float32Array : Array; + glMatrix.RANDOM = Math.random; + + /** + * Sets the type of array used when creating new vectors and matrices + * + * @param {Type} type Array type, such as Float32Array or Array + */ + glMatrix.setMatrixArrayType = function(type) { + GLMAT_ARRAY_TYPE = type; + } + + var degree = Math.PI / 180; + + /** + * Convert Degree To Radian + * + * @param {Number} Angle in Degrees + */ + glMatrix.toRadian = function(a){ + return a * degree; + } + + module.exports = glMatrix; + + +/***/ }, +/* 11 */ +/***/ function(module, exports, __webpack_require__) { + + /* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV. + + Permission is hereby granted, free of charge, to any person obtaining a copy + of this software and associated documentation files (the "Software"), to deal + in the Software without restriction, including without limitation the rights + to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + copies of the Software, and to permit persons to whom the Software is + furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included in + all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + THE SOFTWARE. */ + + var glMatrix = __webpack_require__(10); + + /** + * @class 2x2 Matrix + * @name mat2 + */ + var mat2 = {}; + + /** + * Creates a new identity mat2 + * + * @returns {mat2} a new 2x2 matrix + */ + mat2.create = function() { + var out = new glMatrix.ARRAY_TYPE(4); + out[0] = 1; + out[1] = 0; + out[2] = 0; + out[3] = 1; + return out; + }; + + /** + * Creates a new mat2 initialized with values from an existing matrix + * + * @param {mat2} a matrix to clone + * @returns {mat2} a new 2x2 matrix + */ + mat2.clone = function(a) { + var out = new glMatrix.ARRAY_TYPE(4); + out[0] = a[0]; + out[1] = a[1]; + out[2] = a[2]; + out[3] = a[3]; + return out; + }; + + /** + * Copy the values from one mat2 to another + * + * @param {mat2} out the receiving matrix + * @param {mat2} a the source matrix + * @returns {mat2} out + */ + mat2.copy = function(out, a) { + out[0] = a[0]; + out[1] = a[1]; + out[2] = a[2]; + out[3] = a[3]; + return out; + }; + + /** + * Set a mat2 to the identity matrix + * + * @param {mat2} out the receiving matrix + * @returns {mat2} out + */ + mat2.identity = function(out) { + out[0] = 1; + out[1] = 0; + out[2] = 0; + out[3] = 1; + return out; + }; + + /** + * Transpose the values of a mat2 + * + * @param {mat2} out the receiving matrix + * @param {mat2} a the source matrix + * @returns {mat2} out + */ + mat2.transpose = function(out, a) { + // If we are transposing ourselves we can skip a few steps but have to cache some values + if (out === a) { + var a1 = a[1]; + out[1] = a[2]; + out[2] = a1; + } else { + out[0] = a[0]; + out[1] = a[2]; + out[2] = a[1]; + out[3] = a[3]; + } + + return out; + }; + + /** + * Inverts a mat2 + * + * @param {mat2} out the receiving matrix + * @param {mat2} a the source matrix + * @returns {mat2} out + */ + mat2.invert = function(out, a) { + var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3], + + // Calculate the determinant + det = a0 * a3 - a2 * a1; + + if (!det) { + return null; + } + det = 1.0 / det; + + out[0] = a3 * det; + out[1] = -a1 * det; + out[2] = -a2 * det; + out[3] = a0 * det; + + return out; + }; + + /** + * Calculates the adjugate of a mat2 + * + * @param {mat2} out the receiving matrix + * @param {mat2} a the source matrix + * @returns {mat2} out + */ + mat2.adjoint = function(out, a) { + // Caching this value is nessecary if out == a + var a0 = a[0]; + out[0] = a[3]; + out[1] = -a[1]; + out[2] = -a[2]; + out[3] = a0; + + return out; + }; + + /** + * Calculates the determinant of a mat2 + * + * @param {mat2} a the source matrix + * @returns {Number} determinant of a + */ + mat2.determinant = function (a) { + return a[0] * a[3] - a[2] * a[1]; + }; + + /** + * Multiplies two mat2's + * + * @param {mat2} out the receiving matrix + * @param {mat2} a the first operand + * @param {mat2} b the second operand + * @returns {mat2} out + */ + mat2.multiply = function (out, a, b) { + var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3]; + var b0 = b[0], b1 = b[1], b2 = b[2], b3 = b[3]; + out[0] = a0 * b0 + a2 * b1; + out[1] = a1 * b0 + a3 * b1; + out[2] = a0 * b2 + a2 * b3; + out[3] = a1 * b2 + a3 * b3; + return out; + }; + + /** + * Alias for {@link mat2.multiply} + * @function + */ + mat2.mul = mat2.multiply; + + /** + * Rotates a mat2 by the given angle + * + * @param {mat2} out the receiving matrix + * @param {mat2} a the matrix to rotate + * @param {Number} rad the angle to rotate the matrix by + * @returns {mat2} out + */ + mat2.rotate = function (out, a, rad) { + var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3], + s = Math.sin(rad), + c = Math.cos(rad); + out[0] = a0 * c + a2 * s; + out[1] = a1 * c + a3 * s; + out[2] = a0 * -s + a2 * c; + out[3] = a1 * -s + a3 * c; + return out; + }; + + /** + * Scales the mat2 by the dimensions in the given vec2 + * + * @param {mat2} out the receiving matrix + * @param {mat2} a the matrix to rotate + * @param {vec2} v the vec2 to scale the matrix by + * @returns {mat2} out + **/ + mat2.scale = function(out, a, v) { + var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3], + v0 = v[0], v1 = v[1]; + out[0] = a0 * v0; + out[1] = a1 * v0; + out[2] = a2 * v1; + out[3] = a3 * v1; + return out; + }; + + /** + * Creates a matrix from a given angle + * This is equivalent to (but much faster than): + * + * mat2.identity(dest); + * mat2.rotate(dest, dest, rad); + * + * @param {mat2} out mat2 receiving operation result + * @param {Number} rad the angle to rotate the matrix by + * @returns {mat2} out + */ + mat2.fromRotation = function(out, rad) { + var s = Math.sin(rad), + c = Math.cos(rad); + out[0] = c; + out[1] = s; + out[2] = -s; + out[3] = c; + return out; + } + + /** + * Creates a matrix from a vector scaling + * This is equivalent to (but much faster than): + * + * mat2.identity(dest); + * mat2.scale(dest, dest, vec); + * + * @param {mat2} out mat2 receiving operation result + * @param {vec2} v Scaling vector + * @returns {mat2} out + */ + mat2.fromScaling = function(out, v) { + out[0] = v[0]; + out[1] = 0; + out[2] = 0; + out[3] = v[1]; + return out; + } + + /** + * Returns a string representation of a mat2 + * + * @param {mat2} mat matrix to represent as a string + * @returns {String} string representation of the matrix + */ + mat2.str = function (a) { + return 'mat2(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' + a[3] + ')'; + }; + + /** + * Returns Frobenius norm of a mat2 + * + * @param {mat2} a the matrix to calculate Frobenius norm of + * @returns {Number} Frobenius norm + */ + mat2.frob = function (a) { + return(Math.sqrt(Math.pow(a[0], 2) + Math.pow(a[1], 2) + Math.pow(a[2], 2) + Math.pow(a[3], 2))) + }; + + /** + * Returns L, D and U matrices (Lower triangular, Diagonal and Upper triangular) by factorizing the input matrix + * @param {mat2} L the lower triangular matrix + * @param {mat2} D the diagonal matrix + * @param {mat2} U the upper triangular matrix + * @param {mat2} a the input matrix to factorize + */ + + mat2.LDU = function (L, D, U, a) { + L[2] = a[2]/a[0]; + U[0] = a[0]; + U[1] = a[1]; + U[3] = a[3] - L[2] * U[1]; + return [L, D, U]; + }; + + + module.exports = mat2; + + +/***/ }, +/* 12 */ +/***/ function(module, exports, __webpack_require__) { + + /* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV. + + Permission is hereby granted, free of charge, to any person obtaining a copy + of this software and associated documentation files (the "Software"), to deal + in the Software without restriction, including without limitation the rights + to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + copies of the Software, and to permit persons to whom the Software is + furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included in + all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + THE SOFTWARE. */ + + var glMatrix = __webpack_require__(10); + + /** + * @class 2x3 Matrix + * @name mat2d + * + * @description + * A mat2d contains six elements defined as: + * 
+	 * [a, c, tx,
+	 *  b, d, ty]
+	 *
+ * This is a short form for the 3x3 matrix: + * 
+	 * [a, c, tx,
+	 *  b, d, ty,
+	 *  0, 0, 1]
+	 *
+ * The last row is ignored so the array is shorter and operations are faster. + */ + var mat2d = {}; + + /** + * Creates a new identity mat2d + * + * @returns {mat2d} a new 2x3 matrix + */ + mat2d.create = function() { + var out = new glMatrix.ARRAY_TYPE(6); + out[0] = 1; + out[1] = 0; + out[2] = 0; + out[3] = 1; + out[4] = 0; + out[5] = 0; + return out; + }; + + /** + * Creates a new mat2d initialized with values from an existing matrix + * + * @param {mat2d} a matrix to clone + * @returns {mat2d} a new 2x3 matrix + */ + mat2d.clone = function(a) { + var out = new glMatrix.ARRAY_TYPE(6); + out[0] = a[0]; + out[1] = a[1]; + out[2] = a[2]; + out[3] = a[3]; + out[4] = a[4]; + out[5] = a[5]; + return out; + }; + + /** + * Copy the values from one mat2d to another + * + * @param {mat2d} out the receiving matrix + * @param {mat2d} a the source matrix + * @returns {mat2d} out + */ + mat2d.copy = function(out, a) { + out[0] = a[0]; + out[1] = a[1]; + out[2] = a[2]; + out[3] = a[3]; + out[4] = a[4]; + out[5] = a[5]; + return out; + }; + + /** + * Set a mat2d to the identity matrix + * + * @param {mat2d} out the receiving matrix + * @returns {mat2d} out + */ + mat2d.identity = function(out) { + out[0] = 1; + out[1] = 0; + out[2] = 0; + out[3] = 1; + out[4] = 0; + out[5] = 0; + return out; + }; + + /** + * Inverts a mat2d + * + * @param {mat2d} out the receiving matrix + * @param {mat2d} a the source matrix + * @returns {mat2d} out + */ + mat2d.invert = function(out, a) { + var aa = a[0], ab = a[1], ac = a[2], ad = a[3], + atx = a[4], aty = a[5]; + + var det = aa * ad - ab * ac; + if(!det){ + return null; + } + det = 1.0 / det; + + out[0] = ad * det; + out[1] = -ab * det; + out[2] = -ac * det; + out[3] = aa * det; + out[4] = (ac * aty - ad * atx) * det; + out[5] = (ab * atx - aa * aty) * det; + return out; + }; + + /** + * Calculates the determinant of a mat2d + * + * @param {mat2d} a the source matrix + * @returns {Number} determinant of a + */ + mat2d.determinant = function (a) { + return a[0] * a[3] - a[1] * a[2]; + }; + + /** + * Multiplies two mat2d's + * + * @param {mat2d} out the receiving matrix + * @param {mat2d} a the first operand + * @param {mat2d} b the second operand + * @returns {mat2d} out + */ + mat2d.multiply = function (out, a, b) { + var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3], a4 = a[4], a5 = a[5], + b0 = b[0], b1 = b[1], b2 = b[2], b3 = b[3], b4 = b[4], b5 = b[5]; + out[0] = a0 * b0 + a2 * b1; + out[1] = a1 * b0 + a3 * b1; + out[2] = a0 * b2 + a2 * b3; + out[3] = a1 * b2 + a3 * b3; + out[4] = a0 * b4 + a2 * b5 + a4; + out[5] = a1 * b4 + a3 * b5 + a5; + return out; + }; + + /** + * Alias for {@link mat2d.multiply} + * @function + */ + mat2d.mul = mat2d.multiply; + + /** + * Rotates a mat2d by the given angle + * + * @param {mat2d} out the receiving matrix + * @param {mat2d} a the matrix to rotate + * @param {Number} rad the angle to rotate the matrix by + * @returns {mat2d} out + */ + mat2d.rotate = function (out, a, rad) { + var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3], a4 = a[4], a5 = a[5], + s = Math.sin(rad), + c = Math.cos(rad); + out[0] = a0 * c + a2 * s; + out[1] = a1 * c + a3 * s; + out[2] = a0 * -s + a2 * c; + out[3] = a1 * -s + a3 * c; + out[4] = a4; + out[5] = a5; + return out; + }; + + /** + * Scales the mat2d by the dimensions in the given vec2 + * + * @param {mat2d} out the receiving matrix + * @param {mat2d} a the matrix to translate + * @param {vec2} v the vec2 to scale the matrix by + * @returns {mat2d} out + **/ + mat2d.scale = function(out, a, v) { + var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3], a4 = a[4], a5 = a[5], + v0 = v[0], v1 = v[1]; + out[0] = a0 * v0; + out[1] = a1 * v0; + out[2] = a2 * v1; + out[3] = a3 * v1; + out[4] = a4; + out[5] = a5; + return out; + }; + + /** + * Translates the mat2d by the dimensions in the given vec2 + * + * @param {mat2d} out the receiving matrix + * @param {mat2d} a the matrix to translate + * @param {vec2} v the vec2 to translate the matrix by + * @returns {mat2d} out + **/ + mat2d.translate = function(out, a, v) { + var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3], a4 = a[4], a5 = a[5], + v0 = v[0], v1 = v[1]; + out[0] = a0; + out[1] = a1; + out[2] = a2; + out[3] = a3; + out[4] = a0 * v0 + a2 * v1 + a4; + out[5] = a1 * v0 + a3 * v1 + a5; + return out; + }; + + /** + * Creates a matrix from a given angle + * This is equivalent to (but much faster than): + * + * mat2d.identity(dest); + * mat2d.rotate(dest, dest, rad); + * + * @param {mat2d} out mat2d receiving operation result + * @param {Number} rad the angle to rotate the matrix by + * @returns {mat2d} out + */ + mat2d.fromRotation = function(out, rad) { + var s = Math.sin(rad), c = Math.cos(rad); + out[0] = c; + out[1] = s; + out[2] = -s; + out[3] = c; + out[4] = 0; + out[5] = 0; + return out; + } + + /** + * Creates a matrix from a vector scaling + * This is equivalent to (but much faster than): + * + * mat2d.identity(dest); + * mat2d.scale(dest, dest, vec); + * + * @param {mat2d} out mat2d receiving operation result + * @param {vec2} v Scaling vector + * @returns {mat2d} out + */ + mat2d.fromScaling = function(out, v) { + out[0] = v[0]; + out[1] = 0; + out[2] = 0; + out[3] = v[1]; + out[4] = 0; + out[5] = 0; + return out; + } + + /** + * Creates a matrix from a vector translation + * This is equivalent to (but much faster than): + * + * mat2d.identity(dest); + * mat2d.translate(dest, dest, vec); + * + * @param {mat2d} out mat2d receiving operation result + * @param {vec2} v Translation vector + * @returns {mat2d} out + */ + mat2d.fromTranslation = function(out, v) { + out[0] = 1; + out[1] = 0; + out[2] = 0; + out[3] = 1; + out[4] = v[0]; + out[5] = v[1]; + return out; + } + + /** + * Returns a string representation of a mat2d + * + * @param {mat2d} a matrix to represent as a string + * @returns {String} string representation of the matrix + */ + mat2d.str = function (a) { + return 'mat2d(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' + + a[3] + ', ' + a[4] + ', ' + a[5] + ')'; + }; + + /** + * Returns Frobenius norm of a mat2d + * + * @param {mat2d} a the matrix to calculate Frobenius norm of + * @returns {Number} Frobenius norm + */ + mat2d.frob = function (a) { + return(Math.sqrt(Math.pow(a[0], 2) + Math.pow(a[1], 2) + Math.pow(a[2], 2) + Math.pow(a[3], 2) + Math.pow(a[4], 2) + Math.pow(a[5], 2) + 1)) + }; + + module.exports = mat2d; + + +/***/ }, +/* 13 */ +/***/ function(module, exports, __webpack_require__) { + + /* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV. + + Permission is hereby granted, free of charge, to any person obtaining a copy + of this software and associated documentation files (the "Software"), to deal + in the Software without restriction, including without limitation the rights + to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + copies of the Software, and to permit persons to whom the Software is + furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included in + all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + THE SOFTWARE. */ + + var glMatrix = __webpack_require__(10); + + /** + * @class 3x3 Matrix + * @name mat3 + */ + var mat3 = {}; + + /** + * Creates a new identity mat3 + * + * @returns {mat3} a new 3x3 matrix + */ + mat3.create = function() { + var out = new glMatrix.ARRAY_TYPE(9); + out[0] = 1; + out[1] = 0; + out[2] = 0; + out[3] = 0; + out[4] = 1; + out[5] = 0; + out[6] = 0; + out[7] = 0; + out[8] = 1; + return out; + }; + + /** + * Copies the upper-left 3x3 values into the given mat3. + * + * @param {mat3} out the receiving 3x3 matrix + * @param {mat4} a the source 4x4 matrix + * @returns {mat3} out + */ + mat3.fromMat4 = function(out, a) { + out[0] = a[0]; + out[1] = a[1]; + out[2] = a[2]; + out[3] = a[4]; + out[4] = a[5]; + out[5] = a[6]; + out[6] = a[8]; + out[7] = a[9]; + out[8] = a[10]; + return out; + }; + + /** + * Creates a new mat3 initialized with values from an existing matrix + * + * @param {mat3} a matrix to clone + * @returns {mat3} a new 3x3 matrix + */ + mat3.clone = function(a) { + var out = new glMatrix.ARRAY_TYPE(9); + out[0] = a[0]; + out[1] = a[1]; + out[2] = a[2]; + out[3] = a[3]; + out[4] = a[4]; + out[5] = a[5]; + out[6] = a[6]; + out[7] = a[7]; + out[8] = a[8]; + return out; + }; + + /** + * Copy the values from one mat3 to another + * + * @param {mat3} out the receiving matrix + * @param {mat3} a the source matrix + * @returns {mat3} out + */ + mat3.copy = function(out, a) { + out[0] = a[0]; + out[1] = a[1]; + out[2] = a[2]; + out[3] = a[3]; + out[4] = a[4]; + out[5] = a[5]; + out[6] = a[6]; + out[7] = a[7]; + out[8] = a[8]; + return out; + }; + + /** + * Set a mat3 to the identity matrix + * + * @param {mat3} out the receiving matrix + * @returns {mat3} out + */ + mat3.identity = function(out) { + out[0] = 1; + out[1] = 0; + out[2] = 0; + out[3] = 0; + out[4] = 1; + out[5] = 0; + out[6] = 0; + out[7] = 0; + out[8] = 1; + return out; + }; + + /** + * Transpose the values of a mat3 + * + * @param {mat3} out the receiving matrix + * @param {mat3} a the source matrix + * @returns {mat3} out + */ + mat3.transpose = function(out, a) { + // If we are transposing ourselves we can skip a few steps but have to cache some values + if (out === a) { + var a01 = a[1], a02 = a[2], a12 = a[5]; + out[1] = a[3]; + out[2] = a[6]; + out[3] = a01; + out[5] = a[7]; + out[6] = a02; + out[7] = a12; + } else { + out[0] = a[0]; + out[1] = a[3]; + out[2] = a[6]; + out[3] = a[1]; + out[4] = a[4]; + out[5] = a[7]; + out[6] = a[2]; + out[7] = a[5]; + out[8] = a[8]; + } + + return out; + }; + + /** + * Inverts a mat3 + * + * @param {mat3} out the receiving matrix + * @param {mat3} a the source matrix + * @returns {mat3} out + */ + mat3.invert = function(out, a) { + var a00 = a[0], a01 = a[1], a02 = a[2], + a10 = a[3], a11 = a[4], a12 = a[5], + a20 = a[6], a21 = a[7], a22 = a[8], + + b01 = a22 * a11 - a12 * a21, + b11 = -a22 * a10 + a12 * a20, + b21 = a21 * a10 - a11 * a20, + + // Calculate the determinant + det = a00 * b01 + a01 * b11 + a02 * b21; + + if (!det) { + return null; + } + det = 1.0 / det; + + out[0] = b01 * det; + out[1] = (-a22 * a01 + a02 * a21) * det; + out[2] = (a12 * a01 - a02 * a11) * det; + out[3] = b11 * det; + out[4] = (a22 * a00 - a02 * a20) * det; + out[5] = (-a12 * a00 + a02 * a10) * det; + out[6] = b21 * det; + out[7] = (-a21 * a00 + a01 * a20) * det; + out[8] = (a11 * a00 - a01 * a10) * det; + return out; + }; + + /** + * Calculates the adjugate of a mat3 + * + * @param {mat3} out the receiving matrix + * @param {mat3} a the source matrix + * @returns {mat3} out + */ + mat3.adjoint = function(out, a) { + var a00 = a[0], a01 = a[1], a02 = a[2], + a10 = a[3], a11 = a[4], a12 = a[5], + a20 = a[6], a21 = a[7], a22 = a[8]; + + out[0] = (a11 * a22 - a12 * a21); + out[1] = (a02 * a21 - a01 * a22); + out[2] = (a01 * a12 - a02 * a11); + out[3] = (a12 * a20 - a10 * a22); + out[4] = (a00 * a22 - a02 * a20); + out[5] = (a02 * a10 - a00 * a12); + out[6] = (a10 * a21 - a11 * a20); + out[7] = (a01 * a20 - a00 * a21); + out[8] = (a00 * a11 - a01 * a10); + return out; + }; + + /** + * Calculates the determinant of a mat3 + * + * @param {mat3} a the source matrix + * @returns {Number} determinant of a + */ + mat3.determinant = function (a) { + var a00 = a[0], a01 = a[1], a02 = a[2], + a10 = a[3], a11 = a[4], a12 = a[5], + a20 = a[6], a21 = a[7], a22 = a[8]; + + return a00 * (a22 * a11 - a12 * a21) + a01 * (-a22 * a10 + a12 * a20) + a02 * (a21 * a10 - a11 * a20); + }; + + /** + * Multiplies two mat3's + * + * @param {mat3} out the receiving matrix + * @param {mat3} a the first operand + * @param {mat3} b the second operand + * @returns {mat3} out + */ + mat3.multiply = function (out, a, b) { + var a00 = a[0], a01 = a[1], a02 = a[2], + a10 = a[3], a11 = a[4], a12 = a[5], + a20 = a[6], a21 = a[7], a22 = a[8], + + b00 = b[0], b01 = b[1], b02 = b[2], + b10 = b[3], b11 = b[4], b12 = b[5], + b20 = b[6], b21 = b[7], b22 = b[8]; + + out[0] = b00 * a00 + b01 * a10 + b02 * a20; + out[1] = b00 * a01 + b01 * a11 + b02 * a21; + out[2] = b00 * a02 + b01 * a12 + b02 * a22; + + out[3] = b10 * a00 + b11 * a10 + b12 * a20; + out[4] = b10 * a01 + b11 * a11 + b12 * a21; + out[5] = b10 * a02 + b11 * a12 + b12 * a22; + + out[6] = b20 * a00 + b21 * a10 + b22 * a20; + out[7] = b20 * a01 + b21 * a11 + b22 * a21; + out[8] = b20 * a02 + b21 * a12 + b22 * a22; + return out; + }; + + /** + * Alias for {@link mat3.multiply} + * @function + */ + mat3.mul = mat3.multiply; + + /** + * Translate a mat3 by the given vector + * + * @param {mat3} out the receiving matrix + * @param {mat3} a the matrix to translate + * @param {vec2} v vector to translate by + * @returns {mat3} out + */ + mat3.translate = function(out, a, v) { + var a00 = a[0], a01 = a[1], a02 = a[2], + a10 = a[3], a11 = a[4], a12 = a[5], + a20 = a[6], a21 = a[7], a22 = a[8], + x = v[0], y = v[1]; + + out[0] = a00; + out[1] = a01; + out[2] = a02; + + out[3] = a10; + out[4] = a11; + out[5] = a12; + + out[6] = x * a00 + y * a10 + a20; + out[7] = x * a01 + y * a11 + a21; + out[8] = x * a02 + y * a12 + a22; + return out; + }; + + /** + * Rotates a mat3 by the given angle + * + * @param {mat3} out the receiving matrix + * @param {mat3} a the matrix to rotate + * @param {Number} rad the angle to rotate the matrix by + * @returns {mat3} out + */ + mat3.rotate = function (out, a, rad) { + var a00 = a[0], a01 = a[1], a02 = a[2], + a10 = a[3], a11 = a[4], a12 = a[5], + a20 = a[6], a21 = a[7], a22 = a[8], + + s = Math.sin(rad), + c = Math.cos(rad); + + out[0] = c * a00 + s * a10; + out[1] = c * a01 + s * a11; + out[2] = c * a02 + s * a12; + + out[3] = c * a10 - s * a00; + out[4] = c * a11 - s * a01; + out[5] = c * a12 - s * a02; + + out[6] = a20; + out[7] = a21; + out[8] = a22; + return out; + }; + + /** + * Scales the mat3 by the dimensions in the given vec2 + * + * @param {mat3} out the receiving matrix + * @param {mat3} a the matrix to rotate + * @param {vec2} v the vec2 to scale the matrix by + * @returns {mat3} out + **/ + mat3.scale = function(out, a, v) { + var x = v[0], y = v[1]; + + out[0] = x * a[0]; + out[1] = x * a[1]; + out[2] = x * a[2]; + + out[3] = y * a[3]; + out[4] = y * a[4]; + out[5] = y * a[5]; + + out[6] = a[6]; + out[7] = a[7]; + out[8] = a[8]; + return out; + }; + + /** + * Creates a matrix from a vector translation + * This is equivalent to (but much faster than): + * + * mat3.identity(dest); + * mat3.translate(dest, dest, vec); + * + * @param {mat3} out mat3 receiving operation result + * @param {vec2} v Translation vector + * @returns {mat3} out + */ + mat3.fromTranslation = function(out, v) { + out[0] = 1; + out[1] = 0; + out[2] = 0; + out[3] = 0; + out[4] = 1; + out[5] = 0; + out[6] = v[0]; + out[7] = v[1]; + out[8] = 1; + return out; + } + + /** + * Creates a matrix from a given angle + * This is equivalent to (but much faster than): + * + * mat3.identity(dest); + * mat3.rotate(dest, dest, rad); + * + * @param {mat3} out mat3 receiving operation result + * @param {Number} rad the angle to rotate the matrix by + * @returns {mat3} out + */ + mat3.fromRotation = function(out, rad) { + var s = Math.sin(rad), c = Math.cos(rad); + + out[0] = c; + out[1] = s; + out[2] = 0; + + out[3] = -s; + out[4] = c; + out[5] = 0; + + out[6] = 0; + out[7] = 0; + out[8] = 1; + return out; + } + + /** + * Creates a matrix from a vector scaling + * This is equivalent to (but much faster than): + * + * mat3.identity(dest); + * mat3.scale(dest, dest, vec); + * + * @param {mat3} out mat3 receiving operation result + * @param {vec2} v Scaling vector + * @returns {mat3} out + */ + mat3.fromScaling = function(out, v) { + out[0] = v[0]; + out[1] = 0; + out[2] = 0; + + out[3] = 0; + out[4] = v[1]; + out[5] = 0; + + out[6] = 0; + out[7] = 0; + out[8] = 1; + return out; + } + + /** + * Copies the values from a mat2d into a mat3 + * + * @param {mat3} out the receiving matrix + * @param {mat2d} a the matrix to copy + * @returns {mat3} out + **/ + mat3.fromMat2d = function(out, a) { + out[0] = a[0]; + out[1] = a[1]; + out[2] = 0; + + out[3] = a[2]; + out[4] = a[3]; + out[5] = 0; + + out[6] = a[4]; + out[7] = a[5]; + out[8] = 1; + return out; + }; + + /** + * Calculates a 3x3 matrix from the given quaternion + * + * @param {mat3} out mat3 receiving operation result + * @param {quat} q Quaternion to create matrix from + * + * @returns {mat3} out + */ + mat3.fromQuat = function (out, q) { + var x = q[0], y = q[1], z = q[2], w = q[3], + x2 = x + x, + y2 = y + y, + z2 = z + z, + + xx = x * x2, + yx = y * x2, + yy = y * y2, + zx = z * x2, + zy = z * y2, + zz = z * z2, + wx = w * x2, + wy = w * y2, + wz = w * z2; + + out[0] = 1 - yy - zz; + out[3] = yx - wz; + out[6] = zx + wy; + + out[1] = yx + wz; + out[4] = 1 - xx - zz; + out[7] = zy - wx; + + out[2] = zx - wy; + out[5] = zy + wx; + out[8] = 1 - xx - yy; + + return out; + }; + + /** + * Calculates a 3x3 normal matrix (transpose inverse) from the 4x4 matrix + * + * @param {mat3} out mat3 receiving operation result + * @param {mat4} a Mat4 to derive the normal matrix from + * + * @returns {mat3} out + */ + mat3.normalFromMat4 = function (out, a) { + var a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3], + a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7], + a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11], + a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15], + + b00 = a00 * a11 - a01 * a10, + b01 = a00 * a12 - a02 * a10, + b02 = a00 * a13 - a03 * a10, + b03 = a01 * a12 - a02 * a11, + b04 = a01 * a13 - a03 * a11, + b05 = a02 * a13 - a03 * a12, + b06 = a20 * a31 - a21 * a30, + b07 = a20 * a32 - a22 * a30, + b08 = a20 * a33 - a23 * a30, + b09 = a21 * a32 - a22 * a31, + b10 = a21 * a33 - a23 * a31, + b11 = a22 * a33 - a23 * a32, + + // Calculate the determinant + det = b00 * b11 - b01 * b10 + b02 * b09 + b03 * b08 - b04 * b07 + b05 * b06; + + if (!det) { + return null; + } + det = 1.0 / det; + + out[0] = (a11 * b11 - a12 * b10 + a13 * b09) * det; + out[1] = (a12 * b08 - a10 * b11 - a13 * b07) * det; + out[2] = (a10 * b10 - a11 * b08 + a13 * b06) * det; + + out[3] = (a02 * b10 - a01 * b11 - a03 * b09) * det; + out[4] = (a00 * b11 - a02 * b08 + a03 * b07) * det; + out[5] = (a01 * b08 - a00 * b10 - a03 * b06) * det; + + out[6] = (a31 * b05 - a32 * b04 + a33 * b03) * det; + out[7] = (a32 * b02 - a30 * b05 - a33 * b01) * det; + out[8] = (a30 * b04 - a31 * b02 + a33 * b00) * det; + + return out; + }; + + /** + * Returns a string representation of a mat3 + * + * @param {mat3} mat matrix to represent as a string + * @returns {String} string representation of the matrix + */ + mat3.str = function (a) { + return 'mat3(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' + + a[3] + ', ' + a[4] + ', ' + a[5] + ', ' + + a[6] + ', ' + a[7] + ', ' + a[8] + ')'; + }; + + /** + * Returns Frobenius norm of a mat3 + * + * @param {mat3} a the matrix to calculate Frobenius norm of + * @returns {Number} Frobenius norm + */ + mat3.frob = function (a) { + return(Math.sqrt(Math.pow(a[0], 2) + Math.pow(a[1], 2) + Math.pow(a[2], 2) + Math.pow(a[3], 2) + Math.pow(a[4], 2) + Math.pow(a[5], 2) + Math.pow(a[6], 2) + Math.pow(a[7], 2) + Math.pow(a[8], 2))) + }; + + + module.exports = mat3; + + +/***/ }, +/* 14 */ +/***/ function(module, exports, __webpack_require__) { + + /* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV. + + Permission is hereby granted, free of charge, to any person obtaining a copy + of this software and associated documentation files (the "Software"), to deal + in the Software without restriction, including without limitation the rights + to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + copies of the Software, and to permit persons to whom the Software is + furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included in + all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + THE SOFTWARE. */ + + var glMatrix = __webpack_require__(10); + + /** + * @class 4x4 Matrix + * @name mat4 + */ + var mat4 = {}; + + /** + * Creates a new identity mat4 + * + * @returns {mat4} a new 4x4 matrix + */ + mat4.create = function() { + var out = new glMatrix.ARRAY_TYPE(16); + out[0] = 1; + out[1] = 0; + out[2] = 0; + out[3] = 0; + out[4] = 0; + out[5] = 1; + out[6] = 0; + out[7] = 0; + out[8] = 0; + out[9] = 0; + out[10] = 1; + out[11] = 0; + out[12] = 0; + out[13] = 0; + out[14] = 0; + out[15] = 1; + return out; + }; + + /** + * Creates a new mat4 initialized with values from an existing matrix + * + * @param {mat4} a matrix to clone + * @returns {mat4} a new 4x4 matrix + */ + mat4.clone = function(a) { + var out = new glMatrix.ARRAY_TYPE(16); + out[0] = a[0]; + out[1] = a[1]; + out[2] = a[2]; + out[3] = a[3]; + out[4] = a[4]; + out[5] = a[5]; + out[6] = a[6]; + out[7] = a[7]; + out[8] = a[8]; + out[9] = a[9]; + out[10] = a[10]; + out[11] = a[11]; + out[12] = a[12]; + out[13] = a[13]; + out[14] = a[14]; + out[15] = a[15]; + return out; + }; + + /** + * Copy the values from one mat4 to another + * + * @param {mat4} out the receiving matrix + * @param {mat4} a the source matrix + * @returns {mat4} out + */ + mat4.copy = function(out, a) { + out[0] = a[0]; + out[1] = a[1]; + out[2] = a[2]; + out[3] = a[3]; + out[4] = a[4]; + out[5] = a[5]; + out[6] = a[6]; + out[7] = a[7]; + out[8] = a[8]; + out[9] = a[9]; + out[10] = a[10]; + out[11] = a[11]; + out[12] = a[12]; + out[13] = a[13]; + out[14] = a[14]; + out[15] = a[15]; + return out; + }; + + /** + * Set a mat4 to the identity matrix + * + * @param {mat4} out the receiving matrix + * @returns {mat4} out + */ + mat4.identity = function(out) { + out[0] = 1; + out[1] = 0; + out[2] = 0; + out[3] = 0; + out[4] = 0; + out[5] = 1; + out[6] = 0; + out[7] = 0; + out[8] = 0; + out[9] = 0; + out[10] = 1; + out[11] = 0; + out[12] = 0; + out[13] = 0; + out[14] = 0; + out[15] = 1; + return out; + }; + + /** + * Transpose the values of a mat4 + * + * @param {mat4} out the receiving matrix + * @param {mat4} a the source matrix + * @returns {mat4} out + */ + mat4.transpose = function(out, a) { + // If we are transposing ourselves we can skip a few steps but have to cache some values + if (out === a) { + var a01 = a[1], a02 = a[2], a03 = a[3], + a12 = a[6], a13 = a[7], + a23 = a[11]; + + out[1] = a[4]; + out[2] = a[8]; + out[3] = a[12]; + out[4] = a01; + out[6] = a[9]; + out[7] = a[13]; + out[8] = a02; + out[9] = a12; + out[11] = a[14]; + out[12] = a03; + out[13] = a13; + out[14] = a23; + } else { + out[0] = a[0]; + out[1] = a[4]; + out[2] = a[8]; + out[3] = a[12]; + out[4] = a[1]; + out[5] = a[5]; + out[6] = a[9]; + out[7] = a[13]; + out[8] = a[2]; + out[9] = a[6]; + out[10] = a[10]; + out[11] = a[14]; + out[12] = a[3]; + out[13] = a[7]; + out[14] = a[11]; + out[15] = a[15]; + } + + return out; + }; + + /** + * Inverts a mat4 + * + * @param {mat4} out the receiving matrix + * @param {mat4} a the source matrix + * @returns {mat4} out + */ + mat4.invert = function(out, a) { + var a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3], + a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7], + a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11], + a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15], + + b00 = a00 * a11 - a01 * a10, + b01 = a00 * a12 - a02 * a10, + b02 = a00 * a13 - a03 * a10, + b03 = a01 * a12 - a02 * a11, + b04 = a01 * a13 - a03 * a11, + b05 = a02 * a13 - a03 * a12, + b06 = a20 * a31 - a21 * a30, + b07 = a20 * a32 - a22 * a30, + b08 = a20 * a33 - a23 * a30, + b09 = a21 * a32 - a22 * a31, + b10 = a21 * a33 - a23 * a31, + b11 = a22 * a33 - a23 * a32, + + // Calculate the determinant + det = b00 * b11 - b01 * b10 + b02 * b09 + b03 * b08 - b04 * b07 + b05 * b06; + + if (!det) { + return null; + } + det = 1.0 / det; + + out[0] = (a11 * b11 - a12 * b10 + a13 * b09) * det; + out[1] = (a02 * b10 - a01 * b11 - a03 * b09) * det; + out[2] = (a31 * b05 - a32 * b04 + a33 * b03) * det; + out[3] = (a22 * b04 - a21 * b05 - a23 * b03) * det; + out[4] = (a12 * b08 - a10 * b11 - a13 * b07) * det; + out[5] = (a00 * b11 - a02 * b08 + a03 * b07) * det; + out[6] = (a32 * b02 - a30 * b05 - a33 * b01) * det; + out[7] = (a20 * b05 - a22 * b02 + a23 * b01) * det; + out[8] = (a10 * b10 - a11 * b08 + a13 * b06) * det; + out[9] = (a01 * b08 - a00 * b10 - a03 * b06) * det; + out[10] = (a30 * b04 - a31 * b02 + a33 * b00) * det; + out[11] = (a21 * b02 - a20 * b04 - a23 * b00) * det; + out[12] = (a11 * b07 - a10 * b09 - a12 * b06) * det; + out[13] = (a00 * b09 - a01 * b07 + a02 * b06) * det; + out[14] = (a31 * b01 - a30 * b03 - a32 * b00) * det; + out[15] = (a20 * b03 - a21 * b01 + a22 * b00) * det; + + return out; + }; + + /** + * Calculates the adjugate of a mat4 + * + * @param {mat4} out the receiving matrix + * @param {mat4} a the source matrix + * @returns {mat4} out + */ + mat4.adjoint = function(out, a) { + var a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3], + a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7], + a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11], + a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15]; + + out[0] = (a11 * (a22 * a33 - a23 * a32) - a21 * (a12 * a33 - a13 * a32) + a31 * (a12 * a23 - a13 * a22)); + out[1] = -(a01 * (a22 * a33 - a23 * a32) - a21 * (a02 * a33 - a03 * a32) + a31 * (a02 * a23 - a03 * a22)); + out[2] = (a01 * (a12 * a33 - a13 * a32) - a11 * (a02 * a33 - a03 * a32) + a31 * (a02 * a13 - a03 * a12)); + out[3] = -(a01 * (a12 * a23 - a13 * a22) - a11 * (a02 * a23 - a03 * a22) + a21 * (a02 * a13 - a03 * a12)); + out[4] = -(a10 * (a22 * a33 - a23 * a32) - a20 * (a12 * a33 - a13 * a32) + a30 * (a12 * a23 - a13 * a22)); + out[5] = (a00 * (a22 * a33 - a23 * a32) - a20 * (a02 * a33 - a03 * a32) + a30 * (a02 * a23 - a03 * a22)); + out[6] = -(a00 * (a12 * a33 - a13 * a32) - a10 * (a02 * a33 - a03 * a32) + a30 * (a02 * a13 - a03 * a12)); + out[7] = (a00 * (a12 * a23 - a13 * a22) - a10 * (a02 * a23 - a03 * a22) + a20 * (a02 * a13 - a03 * a12)); + out[8] = (a10 * (a21 * a33 - a23 * a31) - a20 * (a11 * a33 - a13 * a31) + a30 * (a11 * a23 - a13 * a21)); + out[9] = -(a00 * (a21 * a33 - a23 * a31) - a20 * (a01 * a33 - a03 * a31) + a30 * (a01 * a23 - a03 * a21)); + out[10] = (a00 * (a11 * a33 - a13 * a31) - a10 * (a01 * a33 - a03 * a31) + a30 * (a01 * a13 - a03 * a11)); + out[11] = -(a00 * (a11 * a23 - a13 * a21) - a10 * (a01 * a23 - a03 * a21) + a20 * (a01 * a13 - a03 * a11)); + out[12] = -(a10 * (a21 * a32 - a22 * a31) - a20 * (a11 * a32 - a12 * a31) + a30 * (a11 * a22 - a12 * a21)); + out[13] = (a00 * (a21 * a32 - a22 * a31) - a20 * (a01 * a32 - a02 * a31) + a30 * (a01 * a22 - a02 * a21)); + out[14] = -(a00 * (a11 * a32 - a12 * a31) - a10 * (a01 * a32 - a02 * a31) + a30 * (a01 * a12 - a02 * a11)); + out[15] = (a00 * (a11 * a22 - a12 * a21) - a10 * (a01 * a22 - a02 * a21) + a20 * (a01 * a12 - a02 * a11)); + return out; + }; + + /** + * Calculates the determinant of a mat4 + * + * @param {mat4} a the source matrix + * @returns {Number} determinant of a + */ + mat4.determinant = function (a) { + var a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3], + a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7], + a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11], + a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15], + + b00 = a00 * a11 - a01 * a10, + b01 = a00 * a12 - a02 * a10, + b02 = a00 * a13 - a03 * a10, + b03 = a01 * a12 - a02 * a11, + b04 = a01 * a13 - a03 * a11, + b05 = a02 * a13 - a03 * a12, + b06 = a20 * a31 - a21 * a30, + b07 = a20 * a32 - a22 * a30, + b08 = a20 * a33 - a23 * a30, + b09 = a21 * a32 - a22 * a31, + b10 = a21 * a33 - a23 * a31, + b11 = a22 * a33 - a23 * a32; + + // Calculate the determinant + return b00 * b11 - b01 * b10 + b02 * b09 + b03 * b08 - b04 * b07 + b05 * b06; + }; + + /** + * Multiplies two mat4's + * + * @param {mat4} out the receiving matrix + * @param {mat4} a the first operand + * @param {mat4} b the second operand + * @returns {mat4} out + */ + mat4.multiply = function (out, a, b) { + var a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3], + a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7], + a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11], + a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15]; + + // Cache only the current line of the second matrix + var b0 = b[0], b1 = b[1], b2 = b[2], b3 = b[3]; + out[0] = b0*a00 + b1*a10 + b2*a20 + b3*a30; + out[1] = b0*a01 + b1*a11 + b2*a21 + b3*a31; + out[2] = b0*a02 + b1*a12 + b2*a22 + b3*a32; + out[3] = b0*a03 + b1*a13 + b2*a23 + b3*a33; + + b0 = b[4]; b1 = b[5]; b2 = b[6]; b3 = b[7]; + out[4] = b0*a00 + b1*a10 + b2*a20 + b3*a30; + out[5] = b0*a01 + b1*a11 + b2*a21 + b3*a31; + out[6] = b0*a02 + b1*a12 + b2*a22 + b3*a32; + out[7] = b0*a03 + b1*a13 + b2*a23 + b3*a33; + + b0 = b[8]; b1 = b[9]; b2 = b[10]; b3 = b[11]; + out[8] = b0*a00 + b1*a10 + b2*a20 + b3*a30; + out[9] = b0*a01 + b1*a11 + b2*a21 + b3*a31; + out[10] = b0*a02 + b1*a12 + b2*a22 + b3*a32; + out[11] = b0*a03 + b1*a13 + b2*a23 + b3*a33; + + b0 = b[12]; b1 = b[13]; b2 = b[14]; b3 = b[15]; + out[12] = b0*a00 + b1*a10 + b2*a20 + b3*a30; + out[13] = b0*a01 + b1*a11 + b2*a21 + b3*a31; + out[14] = b0*a02 + b1*a12 + b2*a22 + b3*a32; + out[15] = b0*a03 + b1*a13 + b2*a23 + b3*a33; + return out; + }; + + /** + * Alias for {@link mat4.multiply} + * @function + */ + mat4.mul = mat4.multiply; + + /** + * Translate a mat4 by the given vector + * + * @param {mat4} out the receiving matrix + * @param {mat4} a the matrix to translate + * @param {vec3} v vector to translate by + * @returns {mat4} out + */ + mat4.translate = function (out, a, v) { + var x = v[0], y = v[1], z = v[2], + a00, a01, a02, a03, + a10, a11, a12, a13, + a20, a21, a22, a23; + + if (a === out) { + out[12] = a[0] * x + a[4] * y + a[8] * z + a[12]; + out[13] = a[1] * x + a[5] * y + a[9] * z + a[13]; + out[14] = a[2] * x + a[6] * y + a[10] * z + a[14]; + out[15] = a[3] * x + a[7] * y + a[11] * z + a[15]; + } else { + a00 = a[0]; a01 = a[1]; a02 = a[2]; a03 = a[3]; + a10 = a[4]; a11 = a[5]; a12 = a[6]; a13 = a[7]; + a20 = a[8]; a21 = a[9]; a22 = a[10]; a23 = a[11]; + + out[0] = a00; out[1] = a01; out[2] = a02; out[3] = a03; + out[4] = a10; out[5] = a11; out[6] = a12; out[7] = a13; + out[8] = a20; out[9] = a21; out[10] = a22; out[11] = a23; + + out[12] = a00 * x + a10 * y + a20 * z + a[12]; + out[13] = a01 * x + a11 * y + a21 * z + a[13]; + out[14] = a02 * x + a12 * y + a22 * z + a[14]; + out[15] = a03 * x + a13 * y + a23 * z + a[15]; + } + + return out; + }; + + /** + * Scales the mat4 by the dimensions in the given vec3 + * + * @param {mat4} out the receiving matrix + * @param {mat4} a the matrix to scale + * @param {vec3} v the vec3 to scale the matrix by + * @returns {mat4} out + **/ + mat4.scale = function(out, a, v) { + var x = v[0], y = v[1], z = v[2]; + + out[0] = a[0] * x; + out[1] = a[1] * x; + out[2] = a[2] * x; + out[3] = a[3] * x; + out[4] = a[4] * y; + out[5] = a[5] * y; + out[6] = a[6] * y; + out[7] = a[7] * y; + out[8] = a[8] * z; + out[9] = a[9] * z; + out[10] = a[10] * z; + out[11] = a[11] * z; + out[12] = a[12]; + out[13] = a[13]; + out[14] = a[14]; + out[15] = a[15]; + return out; + }; + + /** + * Rotates a mat4 by the given angle around the given axis + * + * @param {mat4} out the receiving matrix + * @param {mat4} a the matrix to rotate + * @param {Number} rad the angle to rotate the matrix by + * @param {vec3} axis the axis to rotate around + * @returns {mat4} out + */ + mat4.rotate = function (out, a, rad, axis) { + var x = axis[0], y = axis[1], z = axis[2], + len = Math.sqrt(x * x + y * y + z * z), + s, c, t, + a00, a01, a02, a03, + a10, a11, a12, a13, + a20, a21, a22, a23, + b00, b01, b02, + b10, b11, b12, + b20, b21, b22; + + if (Math.abs(len) < glMatrix.EPSILON) { return null; } + + len = 1 / len; + x *= len; + y *= len; + z *= len; + + s = Math.sin(rad); + c = Math.cos(rad); + t = 1 - c; + + a00 = a[0]; a01 = a[1]; a02 = a[2]; a03 = a[3]; + a10 = a[4]; a11 = a[5]; a12 = a[6]; a13 = a[7]; + a20 = a[8]; a21 = a[9]; a22 = a[10]; a23 = a[11]; + + // Construct the elements of the rotation matrix + b00 = x * x * t + c; b01 = y * x * t + z * s; b02 = z * x * t - y * s; + b10 = x * y * t - z * s; b11 = y * y * t + c; b12 = z * y * t + x * s; + b20 = x * z * t + y * s; b21 = y * z * t - x * s; b22 = z * z * t + c; + + // Perform rotation-specific matrix multiplication + out[0] = a00 * b00 + a10 * b01 + a20 * b02; + out[1] = a01 * b00 + a11 * b01 + a21 * b02; + out[2] = a02 * b00 + a12 * b01 + a22 * b02; + out[3] = a03 * b00 + a13 * b01 + a23 * b02; + out[4] = a00 * b10 + a10 * b11 + a20 * b12; + out[5] = a01 * b10 + a11 * b11 + a21 * b12; + out[6] = a02 * b10 + a12 * b11 + a22 * b12; + out[7] = a03 * b10 + a13 * b11 + a23 * b12; + out[8] = a00 * b20 + a10 * b21 + a20 * b22; + out[9] = a01 * b20 + a11 * b21 + a21 * b22; + out[10] = a02 * b20 + a12 * b21 + a22 * b22; + out[11] = a03 * b20 + a13 * b21 + a23 * b22; + + if (a !== out) { // If the source and destination differ, copy the unchanged last row + out[12] = a[12]; + out[13] = a[13]; + out[14] = a[14]; + out[15] = a[15]; + } + return out; + }; + + /** + * Rotates a matrix by the given angle around the X axis + * + * @param {mat4} out the receiving matrix + * @param {mat4} a the matrix to rotate + * @param {Number} rad the angle to rotate the matrix by + * @returns {mat4} out + */ + mat4.rotateX = function (out, a, rad) { + var s = Math.sin(rad), + c = Math.cos(rad), + a10 = a[4], + a11 = a[5], + a12 = a[6], + a13 = a[7], + a20 = a[8], + a21 = a[9], + a22 = a[10], + a23 = a[11]; + + if (a !== out) { // If the source and destination differ, copy the unchanged rows + out[0] = a[0]; + out[1] = a[1]; + out[2] = a[2]; + out[3] = a[3]; + out[12] = a[12]; + out[13] = a[13]; + out[14] = a[14]; + out[15] = a[15]; + } + + // Perform axis-specific matrix multiplication + out[4] = a10 * c + a20 * s; + out[5] = a11 * c + a21 * s; + out[6] = a12 * c + a22 * s; + out[7] = a13 * c + a23 * s; + out[8] = a20 * c - a10 * s; + out[9] = a21 * c - a11 * s; + out[10] = a22 * c - a12 * s; + out[11] = a23 * c - a13 * s; + return out; + }; + + /** + * Rotates a matrix by the given angle around the Y axis + * + * @param {mat4} out the receiving matrix + * @param {mat4} a the matrix to rotate + * @param {Number} rad the angle to rotate the matrix by + * @returns {mat4} out + */ + mat4.rotateY = function (out, a, rad) { + var s = Math.sin(rad), + c = Math.cos(rad), + a00 = a[0], + a01 = a[1], + a02 = a[2], + a03 = a[3], + a20 = a[8], + a21 = a[9], + a22 = a[10], + a23 = a[11]; + + if (a !== out) { // If the source and destination differ, copy the unchanged rows + out[4] = a[4]; + out[5] = a[5]; + out[6] = a[6]; + out[7] = a[7]; + out[12] = a[12]; + out[13] = a[13]; + out[14] = a[14]; + out[15] = a[15]; + } + + // Perform axis-specific matrix multiplication + out[0] = a00 * c - a20 * s; + out[1] = a01 * c - a21 * s; + out[2] = a02 * c - a22 * s; + out[3] = a03 * c - a23 * s; + out[8] = a00 * s + a20 * c; + out[9] = a01 * s + a21 * c; + out[10] = a02 * s + a22 * c; + out[11] = a03 * s + a23 * c; + return out; + }; + + /** + * Rotates a matrix by the given angle around the Z axis + * + * @param {mat4} out the receiving matrix + * @param {mat4} a the matrix to rotate + * @param {Number} rad the angle to rotate the matrix by + * @returns {mat4} out + */ + mat4.rotateZ = function (out, a, rad) { + var s = Math.sin(rad), + c = Math.cos(rad), + a00 = a[0], + a01 = a[1], + a02 = a[2], + a03 = a[3], + a10 = a[4], + a11 = a[5], + a12 = a[6], + a13 = a[7]; + + if (a !== out) { // If the source and destination differ, copy the unchanged last row + out[8] = a[8]; + out[9] = a[9]; + out[10] = a[10]; + out[11] = a[11]; + out[12] = a[12]; + out[13] = a[13]; + out[14] = a[14]; + out[15] = a[15]; + } + + // Perform axis-specific matrix multiplication + out[0] = a00 * c + a10 * s; + out[1] = a01 * c + a11 * s; + out[2] = a02 * c + a12 * s; + out[3] = a03 * c + a13 * s; + out[4] = a10 * c - a00 * s; + out[5] = a11 * c - a01 * s; + out[6] = a12 * c - a02 * s; + out[7] = a13 * c - a03 * s; + return out; + }; + + /** + * Creates a matrix from a vector translation + * This is equivalent to (but much faster than): + * + * mat4.identity(dest); + * mat4.translate(dest, dest, vec); + * + * @param {mat4} out mat4 receiving operation result + * @param {vec3} v Translation vector + * @returns {mat4} out + */ + mat4.fromTranslation = function(out, v) { + out[0] = 1; + out[1] = 0; + out[2] = 0; + out[3] = 0; + out[4] = 0; + out[5] = 1; + out[6] = 0; + out[7] = 0; + out[8] = 0; + out[9] = 0; + out[10] = 1; + out[11] = 0; + out[12] = v[0]; + out[13] = v[1]; + out[14] = v[2]; + out[15] = 1; + return out; + } + + /** + * Creates a matrix from a vector scaling + * This is equivalent to (but much faster than): + * + * mat4.identity(dest); + * mat4.scale(dest, dest, vec); + * + * @param {mat4} out mat4 receiving operation result + * @param {vec3} v Scaling vector + * @returns {mat4} out + */ + mat4.fromScaling = function(out, v) { + out[0] = v[0]; + out[1] = 0; + out[2] = 0; + out[3] = 0; + out[4] = 0; + out[5] = v[1]; + out[6] = 0; + out[7] = 0; + out[8] = 0; + out[9] = 0; + out[10] = v[2]; + out[11] = 0; + out[12] = 0; + out[13] = 0; + out[14] = 0; + out[15] = 1; + return out; + } + + /** + * Creates a matrix from a given angle around a given axis + * This is equivalent to (but much faster than): + * + * mat4.identity(dest); + * mat4.rotate(dest, dest, rad, axis); + * + * @param {mat4} out mat4 receiving operation result + * @param {Number} rad the angle to rotate the matrix by + * @param {vec3} axis the axis to rotate around + * @returns {mat4} out + */ + mat4.fromRotation = function(out, rad, axis) { + var x = axis[0], y = axis[1], z = axis[2], + len = Math.sqrt(x * x + y * y + z * z), + s, c, t; + + if (Math.abs(len) < glMatrix.EPSILON) { return null; } + + len = 1 / len; + x *= len; + y *= len; + z *= len; + + s = Math.sin(rad); + c = Math.cos(rad); + t = 1 - c; + + // Perform rotation-specific matrix multiplication + out[0] = x * x * t + c; + out[1] = y * x * t + z * s; + out[2] = z * x * t - y * s; + out[3] = 0; + out[4] = x * y * t - z * s; + out[5] = y * y * t + c; + out[6] = z * y * t + x * s; + out[7] = 0; + out[8] = x * z * t + y * s; + out[9] = y * z * t - x * s; + out[10] = z * z * t + c; + out[11] = 0; + out[12] = 0; + out[13] = 0; + out[14] = 0; + out[15] = 1; + return out; + } + + /** + * Creates a matrix from the given angle around the X axis + * This is equivalent to (but much faster than): + * + * mat4.identity(dest); + * mat4.rotateX(dest, dest, rad); + * + * @param {mat4} out mat4 receiving operation result + * @param {Number} rad the angle to rotate the matrix by + * @returns {mat4} out + */ + mat4.fromXRotation = function(out, rad) { + var s = Math.sin(rad), + c = Math.cos(rad); + + // Perform axis-specific matrix multiplication + out[0] = 1; + out[1] = 0; + out[2] = 0; + out[3] = 0; + out[4] = 0; + out[5] = c; + out[6] = s; + out[7] = 0; + out[8] = 0; + out[9] = -s; + out[10] = c; + out[11] = 0; + out[12] = 0; + out[13] = 0; + out[14] = 0; + out[15] = 1; + return out; + } + + /** + * Creates a matrix from the given angle around the Y axis + * This is equivalent to (but much faster than): + * + * mat4.identity(dest); + * mat4.rotateY(dest, dest, rad); + * + * @param {mat4} out mat4 receiving operation result + * @param {Number} rad the angle to rotate the matrix by + * @returns {mat4} out + */ + mat4.fromYRotation = function(out, rad) { + var s = Math.sin(rad), + c = Math.cos(rad); + + // Perform axis-specific matrix multiplication + out[0] = c; + out[1] = 0; + out[2] = -s; + out[3] = 0; + out[4] = 0; + out[5] = 1; + out[6] = 0; + out[7] = 0; + out[8] = s; + out[9] = 0; + out[10] = c; + out[11] = 0; + out[12] = 0; + out[13] = 0; + out[14] = 0; + out[15] = 1; + return out; + } + + /** + * Creates a matrix from the given angle around the Z axis + * This is equivalent to (but much faster than): + * + * mat4.identity(dest); + * mat4.rotateZ(dest, dest, rad); + * + * @param {mat4} out mat4 receiving operation result + * @param {Number} rad the angle to rotate the matrix by + * @returns {mat4} out + */ + mat4.fromZRotation = function(out, rad) { + var s = Math.sin(rad), + c = Math.cos(rad); + + // Perform axis-specific matrix multiplication + out[0] = c; + out[1] = s; + out[2] = 0; + out[3] = 0; + out[4] = -s; + out[5] = c; + out[6] = 0; + out[7] = 0; + out[8] = 0; + out[9] = 0; + out[10] = 1; + out[11] = 0; + out[12] = 0; + out[13] = 0; + out[14] = 0; + out[15] = 1; + return out; + } + + /** + * Creates a matrix from a quaternion rotation and vector translation + * This is equivalent to (but much faster than): + * + * mat4.identity(dest); + * mat4.translate(dest, vec); + * var quatMat = mat4.create(); + * quat4.toMat4(quat, quatMat); + * mat4.multiply(dest, quatMat); + * + * @param {mat4} out mat4 receiving operation result + * @param {quat4} q Rotation quaternion + * @param {vec3} v Translation vector + * @returns {mat4} out + */ + mat4.fromRotationTranslation = function (out, q, v) { + // Quaternion math + var x = q[0], y = q[1], z = q[2], w = q[3], + x2 = x + x, + y2 = y + y, + z2 = z + z, + + xx = x * x2, + xy = x * y2, + xz = x * z2, + yy = y * y2, + yz = y * z2, + zz = z * z2, + wx = w * x2, + wy = w * y2, + wz = w * z2; + + out[0] = 1 - (yy + zz); + out[1] = xy + wz; + out[2] = xz - wy; + out[3] = 0; + out[4] = xy - wz; + out[5] = 1 - (xx + zz); + out[6] = yz + wx; + out[7] = 0; + out[8] = xz + wy; + out[9] = yz - wx; + out[10] = 1 - (xx + yy); + out[11] = 0; + out[12] = v[0]; + out[13] = v[1]; + out[14] = v[2]; + out[15] = 1; + + return out; + }; + + /** + * Creates a matrix from a quaternion rotation, vector translation and vector scale + * This is equivalent to (but much faster than): + * + * mat4.identity(dest); + * mat4.translate(dest, vec); + * var quatMat = mat4.create(); + * quat4.toMat4(quat, quatMat); + * mat4.multiply(dest, quatMat); + * mat4.scale(dest, scale) + * + * @param {mat4} out mat4 receiving operation result + * @param {quat4} q Rotation quaternion + * @param {vec3} v Translation vector + * @param {vec3} s Scaling vector + * @returns {mat4} out + */ + mat4.fromRotationTranslationScale = function (out, q, v, s) { + // Quaternion math + var x = q[0], y = q[1], z = q[2], w = q[3], + x2 = x + x, + y2 = y + y, + z2 = z + z, + + xx = x * x2, + xy = x * y2, + xz = x * z2, + yy = y * y2, + yz = y * z2, + zz = z * z2, + wx = w * x2, + wy = w * y2, + wz = w * z2, + sx = s[0], + sy = s[1], + sz = s[2]; + + out[0] = (1 - (yy + zz)) * sx; + out[1] = (xy + wz) * sx; + out[2] = (xz - wy) * sx; + out[3] = 0; + out[4] = (xy - wz) * sy; + out[5] = (1 - (xx + zz)) * sy; + out[6] = (yz + wx) * sy; + out[7] = 0; + out[8] = (xz + wy) * sz; + out[9] = (yz - wx) * sz; + out[10] = (1 - (xx + yy)) * sz; + out[11] = 0; + out[12] = v[0]; + out[13] = v[1]; + out[14] = v[2]; + out[15] = 1; + + return out; + }; + + /** + * Creates a matrix from a quaternion rotation, vector translation and vector scale, rotating and scaling around the given origin + * This is equivalent to (but much faster than): + * + * mat4.identity(dest); + * mat4.translate(dest, vec); + * mat4.translate(dest, origin); + * var quatMat = mat4.create(); + * quat4.toMat4(quat, quatMat); + * mat4.multiply(dest, quatMat); + * mat4.scale(dest, scale) + * mat4.translate(dest, negativeOrigin); + * + * @param {mat4} out mat4 receiving operation result + * @param {quat4} q Rotation quaternion + * @param {vec3} v Translation vector + * @param {vec3} s Scaling vector + * @param {vec3} o The origin vector around which to scale and rotate + * @returns {mat4} out + */ + mat4.fromRotationTranslationScaleOrigin = function (out, q, v, s, o) { + // Quaternion math + var x = q[0], y = q[1], z = q[2], w = q[3], + x2 = x + x, + y2 = y + y, + z2 = z + z, + + xx = x * x2, + xy = x * y2, + xz = x * z2, + yy = y * y2, + yz = y * z2, + zz = z * z2, + wx = w * x2, + wy = w * y2, + wz = w * z2, + + sx = s[0], + sy = s[1], + sz = s[2], + + ox = o[0], + oy = o[1], + oz = o[2]; + + out[0] = (1 - (yy + zz)) * sx; + out[1] = (xy + wz) * sx; + out[2] = (xz - wy) * sx; + out[3] = 0; + out[4] = (xy - wz) * sy; + out[5] = (1 - (xx + zz)) * sy; + out[6] = (yz + wx) * sy; + out[7] = 0; + out[8] = (xz + wy) * sz; + out[9] = (yz - wx) * sz; + out[10] = (1 - (xx + yy)) * sz; + out[11] = 0; + out[12] = v[0] + ox - (out[0] * ox + out[4] * oy + out[8] * oz); + out[13] = v[1] + oy - (out[1] * ox + out[5] * oy + out[9] * oz); + out[14] = v[2] + oz - (out[2] * ox + out[6] * oy + out[10] * oz); + out[15] = 1; + + return out; + }; + + mat4.fromQuat = function (out, q) { + var x = q[0], y = q[1], z = q[2], w = q[3], + x2 = x + x, + y2 = y + y, + z2 = z + z, + + xx = x * x2, + yx = y * x2, + yy = y * y2, + zx = z * x2, + zy = z * y2, + zz = z * z2, + wx = w * x2, + wy = w * y2, + wz = w * z2; + + out[0] = 1 - yy - zz; + out[1] = yx + wz; + out[2] = zx - wy; + out[3] = 0; + + out[4] = yx - wz; + out[5] = 1 - xx - zz; + out[6] = zy + wx; + out[7] = 0; + + out[8] = zx + wy; + out[9] = zy - wx; + out[10] = 1 - xx - yy; + out[11] = 0; + + out[12] = 0; + out[13] = 0; + out[14] = 0; + out[15] = 1; + + return out; + }; + + /** + * Generates a frustum matrix with the given bounds + * + * @param {mat4} out mat4 frustum matrix will be written into + * @param {Number} left Left bound of the frustum + * @param {Number} right Right bound of the frustum + * @param {Number} bottom Bottom bound of the frustum + * @param {Number} top Top bound of the frustum + * @param {Number} near Near bound of the frustum + * @param {Number} far Far bound of the frustum + * @returns {mat4} out + */ + mat4.frustum = function (out, left, right, bottom, top, near, far) { + var rl = 1 / (right - left), + tb = 1 / (top - bottom), + nf = 1 / (near - far); + out[0] = (near * 2) * rl; + out[1] = 0; + out[2] = 0; + out[3] = 0; + out[4] = 0; + out[5] = (near * 2) * tb; + out[6] = 0; + out[7] = 0; + out[8] = (right + left) * rl; + out[9] = (top + bottom) * tb; + out[10] = (far + near) * nf; + out[11] = -1; + out[12] = 0; + out[13] = 0; + out[14] = (far * near * 2) * nf; + out[15] = 0; + return out; + }; + + /** + * Generates a perspective projection matrix with the given bounds + * + * @param {mat4} out mat4 frustum matrix will be written into + * @param {number} fovy Vertical field of view in radians + * @param {number} aspect Aspect ratio. typically viewport width/height + * @param {number} near Near bound of the frustum + * @param {number} far Far bound of the frustum + * @returns {mat4} out + */ + mat4.perspective = function (out, fovy, aspect, near, far) { + var f = 1.0 / Math.tan(fovy / 2), + nf = 1 / (near - far); + out[0] = f / aspect; + out[1] = 0; + out[2] = 0; + out[3] = 0; + out[4] = 0; + out[5] = f; + out[6] = 0; + out[7] = 0; + out[8] = 0; + out[9] = 0; + out[10] = (far + near) * nf; + out[11] = -1; + out[12] = 0; + out[13] = 0; + out[14] = (2 * far * near) * nf; + out[15] = 0; + return out; + }; + + /** + * Generates a perspective projection matrix with the given field of view. + * This is primarily useful for generating projection matrices to be used + * with the still experiemental WebVR API. + * + * @param {mat4} out mat4 frustum matrix will be written into + * @param {number} fov Object containing the following values: upDegrees, downDegrees, leftDegrees, rightDegrees + * @param {number} near Near bound of the frustum + * @param {number} far Far bound of the frustum + * @returns {mat4} out + */ + mat4.perspectiveFromFieldOfView = function (out, fov, near, far) { + var upTan = Math.tan(fov.upDegrees * Math.PI/180.0), + downTan = Math.tan(fov.downDegrees * Math.PI/180.0), + leftTan = Math.tan(fov.leftDegrees * Math.PI/180.0), + rightTan = Math.tan(fov.rightDegrees * Math.PI/180.0), + xScale = 2.0 / (leftTan + rightTan), + yScale = 2.0 / (upTan + downTan); + + out[0] = xScale; + out[1] = 0.0; + out[2] = 0.0; + out[3] = 0.0; + out[4] = 0.0; + out[5] = yScale; + out[6] = 0.0; + out[7] = 0.0; + out[8] = -((leftTan - rightTan) * xScale * 0.5); + out[9] = ((upTan - downTan) * yScale * 0.5); + out[10] = far / (near - far); + out[11] = -1.0; + out[12] = 0.0; + out[13] = 0.0; + out[14] = (far * near) / (near - far); + out[15] = 0.0; + return out; + } + + /** + * Generates a orthogonal projection matrix with the given bounds + * + * @param {mat4} out mat4 frustum matrix will be written into + * @param {number} left Left bound of the frustum + * @param {number} right Right bound of the frustum + * @param {number} bottom Bottom bound of the frustum + * @param {number} top Top bound of the frustum + * @param {number} near Near bound of the frustum + * @param {number} far Far bound of the frustum + * @returns {mat4} out + */ + mat4.ortho = function (out, left, right, bottom, top, near, far) { + var lr = 1 / (left - right), + bt = 1 / (bottom - top), + nf = 1 / (near - far); + out[0] = -2 * lr; + out[1] = 0; + out[2] = 0; + out[3] = 0; + out[4] = 0; + out[5] = -2 * bt; + out[6] = 0; + out[7] = 0; + out[8] = 0; + out[9] = 0; + out[10] = 2 * nf; + out[11] = 0; + out[12] = (left + right) * lr; + out[13] = (top + bottom) * bt; + out[14] = (far + near) * nf; + out[15] = 1; + return out; + }; + + /** + * Generates a look-at matrix with the given eye position, focal point, and up axis + * + * @param {mat4} out mat4 frustum matrix will be written into + * @param {vec3} eye Position of the viewer + * @param {vec3} center Point the viewer is looking at + * @param {vec3} up vec3 pointing up + * @returns {mat4} out + */ + mat4.lookAt = function (out, eye, center, up) { + var x0, x1, x2, y0, y1, y2, z0, z1, z2, len, + eyex = eye[0], + eyey = eye[1], + eyez = eye[2], + upx = up[0], + upy = up[1], + upz = up[2], + centerx = center[0], + centery = center[1], + centerz = center[2]; + + if (Math.abs(eyex - centerx) < glMatrix.EPSILON && + Math.abs(eyey - centery) < glMatrix.EPSILON && + Math.abs(eyez - centerz) < glMatrix.EPSILON) { + return mat4.identity(out); + } + + z0 = eyex - centerx; + z1 = eyey - centery; + z2 = eyez - centerz; + + len = 1 / Math.sqrt(z0 * z0 + z1 * z1 + z2 * z2); + z0 *= len; + z1 *= len; + z2 *= len; + + x0 = upy * z2 - upz * z1; + x1 = upz * z0 - upx * z2; + x2 = upx * z1 - upy * z0; + len = Math.sqrt(x0 * x0 + x1 * x1 + x2 * x2); + if (!len) { + x0 = 0; + x1 = 0; + x2 = 0; + } else { + len = 1 / len; + x0 *= len; + x1 *= len; + x2 *= len; + } + + y0 = z1 * x2 - z2 * x1; + y1 = z2 * x0 - z0 * x2; + y2 = z0 * x1 - z1 * x0; + + len = Math.sqrt(y0 * y0 + y1 * y1 + y2 * y2); + if (!len) { + y0 = 0; + y1 = 0; + y2 = 0; + } else { + len = 1 / len; + y0 *= len; + y1 *= len; + y2 *= len; + } + + out[0] = x0; + out[1] = y0; + out[2] = z0; + out[3] = 0; + out[4] = x1; + out[5] = y1; + out[6] = z1; + out[7] = 0; + out[8] = x2; + out[9] = y2; + out[10] = z2; + out[11] = 0; + out[12] = -(x0 * eyex + x1 * eyey + x2 * eyez); + out[13] = -(y0 * eyex + y1 * eyey + y2 * eyez); + out[14] = -(z0 * eyex + z1 * eyey + z2 * eyez); + out[15] = 1; + + return out; + }; + + /** + * Returns a string representation of a mat4 + * + * @param {mat4} mat matrix to represent as a string + * @returns {String} string representation of the matrix + */ + mat4.str = function (a) { + return 'mat4(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' + a[3] + ', ' + + a[4] + ', ' + a[5] + ', ' + a[6] + ', ' + a[7] + ', ' + + a[8] + ', ' + a[9] + ', ' + a[10] + ', ' + a[11] + ', ' + + a[12] + ', ' + a[13] + ', ' + a[14] + ', ' + a[15] + ')'; + }; + + /** + * Returns Frobenius norm of a mat4 + * + * @param {mat4} a the matrix to calculate Frobenius norm of + * @returns {Number} Frobenius norm + */ + mat4.frob = function (a) { + return(Math.sqrt(Math.pow(a[0], 2) + Math.pow(a[1], 2) + Math.pow(a[2], 2) + Math.pow(a[3], 2) + Math.pow(a[4], 2) + Math.pow(a[5], 2) + Math.pow(a[6], 2) + Math.pow(a[7], 2) + Math.pow(a[8], 2) + Math.pow(a[9], 2) + Math.pow(a[10], 2) + Math.pow(a[11], 2) + Math.pow(a[12], 2) + Math.pow(a[13], 2) + Math.pow(a[14], 2) + Math.pow(a[15], 2) )) + }; + + + module.exports = mat4; + + +/***/ }, +/* 15 */ +/***/ function(module, exports, __webpack_require__) { + + /* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV. + + Permission is hereby granted, free of charge, to any person obtaining a copy + of this software and associated documentation files (the "Software"), to deal + in the Software without restriction, including without limitation the rights + to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + copies of the Software, and to permit persons to whom the Software is + furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included in + all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + THE SOFTWARE. */ + + var glMatrix = __webpack_require__(10); + var mat3 = __webpack_require__(13); + var vec3 = __webpack_require__(16); + var vec4 = __webpack_require__(17); + + /** + * @class Quaternion + * @name quat + */ + var quat = {}; + + /** + * Creates a new identity quat + * + * @returns {quat} a new quaternion + */ + quat.create = function() { + var out = new glMatrix.ARRAY_TYPE(4); + out[0] = 0; + out[1] = 0; + out[2] = 0; + out[3] = 1; + return out; + }; + + /** + * Sets a quaternion to represent the shortest rotation from one + * vector to another. + * + * Both vectors are assumed to be unit length. + * + * @param {quat} out the receiving quaternion. + * @param {vec3} a the initial vector + * @param {vec3} b the destination vector + * @returns {quat} out + */ + quat.rotationTo = (function() { + var tmpvec3 = vec3.create(); + var xUnitVec3 = vec3.fromValues(1,0,0); + var yUnitVec3 = vec3.fromValues(0,1,0); + + return function(out, a, b) { + var dot = vec3.dot(a, b); + if (dot < -0.999999) { + vec3.cross(tmpvec3, xUnitVec3, a); + if (vec3.length(tmpvec3) < 0.000001) + vec3.cross(tmpvec3, yUnitVec3, a); + vec3.normalize(tmpvec3, tmpvec3); + quat.setAxisAngle(out, tmpvec3, Math.PI); + return out; + } else if (dot > 0.999999) { + out[0] = 0; + out[1] = 0; + out[2] = 0; + out[3] = 1; + return out; + } else { + vec3.cross(tmpvec3, a, b); + out[0] = tmpvec3[0]; + out[1] = tmpvec3[1]; + out[2] = tmpvec3[2]; + out[3] = 1 + dot; + return quat.normalize(out, out); + } + }; + })(); + + /** + * Sets the specified quaternion with values corresponding to the given + * axes. Each axis is a vec3 and is expected to be unit length and + * perpendicular to all other specified axes. + * + * @param {vec3} view the vector representing the viewing direction + * @param {vec3} right the vector representing the local "right" direction + * @param {vec3} up the vector representing the local "up" direction + * @returns {quat} out + */ + quat.setAxes = (function() { + var matr = mat3.create(); + + return function(out, view, right, up) { + matr[0] = right[0]; + matr[3] = right[1]; + matr[6] = right[2]; + + matr[1] = up[0]; + matr[4] = up[1]; + matr[7] = up[2]; + + matr[2] = -view[0]; + matr[5] = -view[1]; + matr[8] = -view[2]; + + return quat.normalize(out, quat.fromMat3(out, matr)); + }; + })(); + + /** + * Creates a new quat initialized with values from an existing quaternion + * + * @param {quat} a quaternion to clone + * @returns {quat} a new quaternion + * @function + */ + quat.clone = vec4.clone; + + /** + * Creates a new quat initialized with the given values + * + * @param {Number} x X component + * @param {Number} y Y component + * @param {Number} z Z component + * @param {Number} w W component + * @returns {quat} a new quaternion + * @function + */ + quat.fromValues = vec4.fromValues; + + /** + * Copy the values from one quat to another + * + * @param {quat} out the receiving quaternion + * @param {quat} a the source quaternion + * @returns {quat} out + * @function + */ + quat.copy = vec4.copy; + + /** + * Set the components of a quat to the given values + * + * @param {quat} out the receiving quaternion + * @param {Number} x X component + * @param {Number} y Y component + * @param {Number} z Z component + * @param {Number} w W component + * @returns {quat} out + * @function + */ + quat.set = vec4.set; + + /** + * Set a quat to the identity quaternion + * + * @param {quat} out the receiving quaternion + * @returns {quat} out + */ + quat.identity = function(out) { + out[0] = 0; + out[1] = 0; + out[2] = 0; + out[3] = 1; + return out; + }; + + /** + * Sets a quat from the given angle and rotation axis, + * then returns it. + * + * @param {quat} out the receiving quaternion + * @param {vec3} axis the axis around which to rotate + * @param {Number} rad the angle in radians + * @returns {quat} out + **/ + quat.setAxisAngle = function(out, axis, rad) { + rad = rad * 0.5; + var s = Math.sin(rad); + out[0] = s * axis[0]; + out[1] = s * axis[1]; + out[2] = s * axis[2]; + out[3] = Math.cos(rad); + return out; + }; + + /** + * Adds two quat's + * + * @param {quat} out the receiving quaternion + * @param {quat} a the first operand + * @param {quat} b the second operand + * @returns {quat} out + * @function + */ + quat.add = vec4.add; + + /** + * Multiplies two quat's + * + * @param {quat} out the receiving quaternion + * @param {quat} a the first operand + * @param {quat} b the second operand + * @returns {quat} out + */ + quat.multiply = function(out, a, b) { + var ax = a[0], ay = a[1], az = a[2], aw = a[3], + bx = b[0], by = b[1], bz = b[2], bw = b[3]; + + out[0] = ax * bw + aw * bx + ay * bz - az * by; + out[1] = ay * bw + aw * by + az * bx - ax * bz; + out[2] = az * bw + aw * bz + ax * by - ay * bx; + out[3] = aw * bw - ax * bx - ay * by - az * bz; + return out; + }; + + /** + * Alias for {@link quat.multiply} + * @function + */ + quat.mul = quat.multiply; + + /** + * Scales a quat by a scalar number + * + * @param {quat} out the receiving vector + * @param {quat} a the vector to scale + * @param {Number} b amount to scale the vector by + * @returns {quat} out + * @function + */ + quat.scale = vec4.scale; + + /** + * Rotates a quaternion by the given angle about the X axis + * + * @param {quat} out quat receiving operation result + * @param {quat} a quat to rotate + * @param {number} rad angle (in radians) to rotate + * @returns {quat} out + */ + quat.rotateX = function (out, a, rad) { + rad *= 0.5; + + var ax = a[0], ay = a[1], az = a[2], aw = a[3], + bx = Math.sin(rad), bw = Math.cos(rad); + + out[0] = ax * bw + aw * bx; + out[1] = ay * bw + az * bx; + out[2] = az * bw - ay * bx; + out[3] = aw * bw - ax * bx; + return out; + }; + + /** + * Rotates a quaternion by the given angle about the Y axis + * + * @param {quat} out quat receiving operation result + * @param {quat} a quat to rotate + * @param {number} rad angle (in radians) to rotate + * @returns {quat} out + */ + quat.rotateY = function (out, a, rad) { + rad *= 0.5; + + var ax = a[0], ay = a[1], az = a[2], aw = a[3], + by = Math.sin(rad), bw = Math.cos(rad); + + out[0] = ax * bw - az * by; + out[1] = ay * bw + aw * by; + out[2] = az * bw + ax * by; + out[3] = aw * bw - ay * by; + return out; + }; + + /** + * Rotates a quaternion by the given angle about the Z axis + * + * @param {quat} out quat receiving operation result + * @param {quat} a quat to rotate + * @param {number} rad angle (in radians) to rotate + * @returns {quat} out + */ + quat.rotateZ = function (out, a, rad) { + rad *= 0.5; + + var ax = a[0], ay = a[1], az = a[2], aw = a[3], + bz = Math.sin(rad), bw = Math.cos(rad); + + out[0] = ax * bw + ay * bz; + out[1] = ay * bw - ax * bz; + out[2] = az * bw + aw * bz; + out[3] = aw * bw - az * bz; + return out; + }; + + /** + * Calculates the W component of a quat from the X, Y, and Z components. + * Assumes that quaternion is 1 unit in length. + * Any existing W component will be ignored. + * + * @param {quat} out the receiving quaternion + * @param {quat} a quat to calculate W component of + * @returns {quat} out + */ + quat.calculateW = function (out, a) { + var x = a[0], y = a[1], z = a[2]; + + out[0] = x; + out[1] = y; + out[2] = z; + out[3] = Math.sqrt(Math.abs(1.0 - x * x - y * y - z * z)); + return out; + }; + + /** + * Calculates the dot product of two quat's + * + * @param {quat} a the first operand + * @param {quat} b the second operand + * @returns {Number} dot product of a and b + * @function + */ + quat.dot = vec4.dot; + + /** + * Performs a linear interpolation between two quat's + * + * @param {quat} out the receiving quaternion + * @param {quat} a the first operand + * @param {quat} b the second operand + * @param {Number} t interpolation amount between the two inputs + * @returns {quat} out + * @function + */ + quat.lerp = vec4.lerp; + + /** + * Performs a spherical linear interpolation between two quat + * + * @param {quat} out the receiving quaternion + * @param {quat} a the first operand + * @param {quat} b the second operand + * @param {Number} t interpolation amount between the two inputs + * @returns {quat} out + */ + quat.slerp = function (out, a, b, t) { + // benchmarks: + // http://jsperf.com/quaternion-slerp-implementations + + var ax = a[0], ay = a[1], az = a[2], aw = a[3], + bx = b[0], by = b[1], bz = b[2], bw = b[3]; + + var omega, cosom, sinom, scale0, scale1; + + // calc cosine + cosom = ax * bx + ay * by + az * bz + aw * bw; + // adjust signs (if necessary) + if ( cosom < 0.0 ) { + cosom = -cosom; + bx = - bx; + by = - by; + bz = - bz; + bw = - bw; + } + // calculate coefficients + if ( (1.0 - cosom) > 0.000001 ) { + // standard case (slerp) + omega = Math.acos(cosom); + sinom = Math.sin(omega); + scale0 = Math.sin((1.0 - t) * omega) / sinom; + scale1 = Math.sin(t * omega) / sinom; + } else { + // "from" and "to" quaternions are very close + // ... so we can do a linear interpolation + scale0 = 1.0 - t; + scale1 = t; + } + // calculate final values + out[0] = scale0 * ax + scale1 * bx; + out[1] = scale0 * ay + scale1 * by; + out[2] = scale0 * az + scale1 * bz; + out[3] = scale0 * aw + scale1 * bw; + + return out; + }; + + /** + * Performs a spherical linear interpolation with two control points + * + * @param {quat} out the receiving quaternion + * @param {quat} a the first operand + * @param {quat} b the second operand + * @param {quat} c the third operand + * @param {quat} d the fourth operand + * @param {Number} t interpolation amount + * @returns {quat} out + */ + quat.sqlerp = (function () { + var temp1 = quat.create(); + var temp2 = quat.create(); + + return function (out, a, b, c, d, t) { + quat.slerp(temp1, a, d, t); + quat.slerp(temp2, b, c, t); + quat.slerp(out, temp1, temp2, 2 * t * (1 - t)); + + return out; + }; + }()); + + /** + * Calculates the inverse of a quat + * + * @param {quat} out the receiving quaternion + * @param {quat} a quat to calculate inverse of + * @returns {quat} out + */ + quat.invert = function(out, a) { + var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3], + dot = a0*a0 + a1*a1 + a2*a2 + a3*a3, + invDot = dot ? 1.0/dot : 0; + + // TODO: Would be faster to return [0,0,0,0] immediately if dot == 0 + + out[0] = -a0*invDot; + out[1] = -a1*invDot; + out[2] = -a2*invDot; + out[3] = a3*invDot; + return out; + }; + + /** + * Calculates the conjugate of a quat + * If the quaternion is normalized, this function is faster than quat.inverse and produces the same result. + * + * @param {quat} out the receiving quaternion + * @param {quat} a quat to calculate conjugate of + * @returns {quat} out + */ + quat.conjugate = function (out, a) { + out[0] = -a[0]; + out[1] = -a[1]; + out[2] = -a[2]; + out[3] = a[3]; + return out; + }; + + /** + * Calculates the length of a quat + * + * @param {quat} a vector to calculate length of + * @returns {Number} length of a + * @function + */ + quat.length = vec4.length; + + /** + * Alias for {@link quat.length} + * @function + */ + quat.len = quat.length; + + /** + * Calculates the squared length of a quat + * + * @param {quat} a vector to calculate squared length of + * @returns {Number} squared length of a + * @function + */ + quat.squaredLength = vec4.squaredLength; + + /** + * Alias for {@link quat.squaredLength} + * @function + */ + quat.sqrLen = quat.squaredLength; + + /** + * Normalize a quat + * + * @param {quat} out the receiving quaternion + * @param {quat} a quaternion to normalize + * @returns {quat} out + * @function + */ + quat.normalize = vec4.normalize; + + /** + * Creates a quaternion from the given 3x3 rotation matrix. + * + * NOTE: The resultant quaternion is not normalized, so you should be sure + * to renormalize the quaternion yourself where necessary. + * + * @param {quat} out the receiving quaternion + * @param {mat3} m rotation matrix + * @returns {quat} out + * @function + */ + quat.fromMat3 = function(out, m) { + // Algorithm in Ken Shoemake's article in 1987 SIGGRAPH course notes + // article "Quaternion Calculus and Fast Animation". + var fTrace = m[0] + m[4] + m[8]; + var fRoot; + + if ( fTrace > 0.0 ) { + // |w| > 1/2, may as well choose w > 1/2 + fRoot = Math.sqrt(fTrace + 1.0); // 2w + out[3] = 0.5 * fRoot; + fRoot = 0.5/fRoot; // 1/(4w) + out[0] = (m[5]-m[7])*fRoot; + out[1] = (m[6]-m[2])*fRoot; + out[2] = (m[1]-m[3])*fRoot; + } else { + // |w| <= 1/2 + var i = 0; + if ( m[4] > m[0] ) + i = 1; + if ( m[8] > m[i*3+i] ) + i = 2; + var j = (i+1)%3; + var k = (i+2)%3; + + fRoot = Math.sqrt(m[i*3+i]-m[j*3+j]-m[k*3+k] + 1.0); + out[i] = 0.5 * fRoot; + fRoot = 0.5 / fRoot; + out[3] = (m[j*3+k] - m[k*3+j]) * fRoot; + out[j] = (m[j*3+i] + m[i*3+j]) * fRoot; + out[k] = (m[k*3+i] + m[i*3+k]) * fRoot; + } + + return out; + }; + + /** + * Returns a string representation of a quatenion + * + * @param {quat} vec vector to represent as a string + * @returns {String} string representation of the vector + */ + quat.str = function (a) { + return 'quat(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' + a[3] + ')'; + }; + + module.exports = quat; + + +/***/ }, +/* 16 */ +/***/ function(module, exports, __webpack_require__) { + + /* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV. + + Permission is hereby granted, free of charge, to any person obtaining a copy + of this software and associated documentation files (the "Software"), to deal + in the Software without restriction, including without limitation the rights + to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + copies of the Software, and to permit persons to whom the Software is + furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included in + all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + THE SOFTWARE. */ + + var glMatrix = __webpack_require__(10); + + /** + * @class 3 Dimensional Vector + * @name vec3 + */ + var vec3 = {}; + + /** + * Creates a new, empty vec3 + * + * @returns {vec3} a new 3D vector + */ + vec3.create = function() { + var out = new glMatrix.ARRAY_TYPE(3); + out[0] = 0; + out[1] = 0; + out[2] = 0; + return out; + }; + + /** + * Creates a new vec3 initialized with values from an existing vector + * + * @param {vec3} a vector to clone + * @returns {vec3} a new 3D vector + */ + vec3.clone = function(a) { + var out = new glMatrix.ARRAY_TYPE(3); + out[0] = a[0]; + out[1] = a[1]; + out[2] = a[2]; + return out; + }; + + /** + * Creates a new vec3 initialized with the given values + * + * @param {Number} x X component + * @param {Number} y Y component + * @param {Number} z Z component + * @returns {vec3} a new 3D vector + */ + vec3.fromValues = function(x, y, z) { + var out = new glMatrix.ARRAY_TYPE(3); + out[0] = x; + out[1] = y; + out[2] = z; + return out; + }; + + /** + * Copy the values from one vec3 to another + * + * @param {vec3} out the receiving vector + * @param {vec3} a the source vector + * @returns {vec3} out + */ + vec3.copy = function(out, a) { + out[0] = a[0]; + out[1] = a[1]; + out[2] = a[2]; + return out; + }; + + /** + * Set the components of a vec3 to the given values + * + * @param {vec3} out the receiving vector + * @param {Number} x X component + * @param {Number} y Y component + * @param {Number} z Z component + * @returns {vec3} out + */ + vec3.set = function(out, x, y, z) { + out[0] = x; + out[1] = y; + out[2] = z; + return out; + }; + + /** + * Adds two vec3's + * + * @param {vec3} out the receiving vector + * @param {vec3} a the first operand + * @param {vec3} b the second operand + * @returns {vec3} out + */ + vec3.add = function(out, a, b) { + out[0] = a[0] + b[0]; + out[1] = a[1] + b[1]; + out[2] = a[2] + b[2]; + return out; + }; + + /** + * Subtracts vector b from vector a + * + * @param {vec3} out the receiving vector + * @param {vec3} a the first operand + * @param {vec3} b the second operand + * @returns {vec3} out + */ + vec3.subtract = function(out, a, b) { + out[0] = a[0] - b[0]; + out[1] = a[1] - b[1]; + out[2] = a[2] - b[2]; + return out; + }; + + /** + * Alias for {@link vec3.subtract} + * @function + */ + vec3.sub = vec3.subtract; + + /** + * Multiplies two vec3's + * + * @param {vec3} out the receiving vector + * @param {vec3} a the first operand + * @param {vec3} b the second operand + * @returns {vec3} out + */ + vec3.multiply = function(out, a, b) { + out[0] = a[0] * b[0]; + out[1] = a[1] * b[1]; + out[2] = a[2] * b[2]; + return out; + }; + + /** + * Alias for {@link vec3.multiply} + * @function + */ + vec3.mul = vec3.multiply; + + /** + * Divides two vec3's + * + * @param {vec3} out the receiving vector + * @param {vec3} a the first operand + * @param {vec3} b the second operand + * @returns {vec3} out + */ + vec3.divide = function(out, a, b) { + out[0] = a[0] / b[0]; + out[1] = a[1] / b[1]; + out[2] = a[2] / b[2]; + return out; + }; + + /** + * Alias for {@link vec3.divide} + * @function + */ + vec3.div = vec3.divide; + + /** + * Returns the minimum of two vec3's + * + * @param {vec3} out the receiving vector + * @param {vec3} a the first operand + * @param {vec3} b the second operand + * @returns {vec3} out + */ + vec3.min = function(out, a, b) { + out[0] = Math.min(a[0], b[0]); + out[1] = Math.min(a[1], b[1]); + out[2] = Math.min(a[2], b[2]); + return out; + }; + + /** + * Returns the maximum of two vec3's + * + * @param {vec3} out the receiving vector + * @param {vec3} a the first operand + * @param {vec3} b the second operand + * @returns {vec3} out + */ + vec3.max = function(out, a, b) { + out[0] = Math.max(a[0], b[0]); + out[1] = Math.max(a[1], b[1]); + out[2] = Math.max(a[2], b[2]); + return out; + }; + + /** + * Scales a vec3 by a scalar number + * + * @param {vec3} out the receiving vector + * @param {vec3} a the vector to scale + * @param {Number} b amount to scale the vector by + * @returns {vec3} out + */ + vec3.scale = function(out, a, b) { + out[0] = a[0] * b; + out[1] = a[1] * b; + out[2] = a[2] * b; + return out; + }; + + /** + * Adds two vec3's after scaling the second operand by a scalar value + * + * @param {vec3} out the receiving vector + * @param {vec3} a the first operand + * @param {vec3} b the second operand + * @param {Number} scale the amount to scale b by before adding + * @returns {vec3} out + */ + vec3.scaleAndAdd = function(out, a, b, scale) { + out[0] = a[0] + (b[0] * scale); + out[1] = a[1] + (b[1] * scale); + out[2] = a[2] + (b[2] * scale); + return out; + }; + + /** + * Calculates the euclidian distance between two vec3's + * + * @param {vec3} a the first operand + * @param {vec3} b the second operand + * @returns {Number} distance between a and b + */ + vec3.distance = function(a, b) { + var x = b[0] - a[0], + y = b[1] - a[1], + z = b[2] - a[2]; + return Math.sqrt(x*x + y*y + z*z); + }; + + /** + * Alias for {@link vec3.distance} + * @function + */ + vec3.dist = vec3.distance; + + /** + * Calculates the squared euclidian distance between two vec3's + * + * @param {vec3} a the first operand + * @param {vec3} b the second operand + * @returns {Number} squared distance between a and b + */ + vec3.squaredDistance = function(a, b) { + var x = b[0] - a[0], + y = b[1] - a[1], + z = b[2] - a[2]; + return x*x + y*y + z*z; + }; + + /** + * Alias for {@link vec3.squaredDistance} + * @function + */ + vec3.sqrDist = vec3.squaredDistance; + + /** + * Calculates the length of a vec3 + * + * @param {vec3} a vector to calculate length of + * @returns {Number} length of a + */ + vec3.length = function (a) { + var x = a[0], + y = a[1], + z = a[2]; + return Math.sqrt(x*x + y*y + z*z); + }; + + /** + * Alias for {@link vec3.length} + * @function + */ + vec3.len = vec3.length; + + /** + * Calculates the squared length of a vec3 + * + * @param {vec3} a vector to calculate squared length of + * @returns {Number} squared length of a + */ + vec3.squaredLength = function (a) { + var x = a[0], + y = a[1], + z = a[2]; + return x*x + y*y + z*z; + }; + + /** + * Alias for {@link vec3.squaredLength} + * @function + */ + vec3.sqrLen = vec3.squaredLength; + + /** + * Negates the components of a vec3 + * + * @param {vec3} out the receiving vector + * @param {vec3} a vector to negate + * @returns {vec3} out + */ + vec3.negate = function(out, a) { + out[0] = -a[0]; + out[1] = -a[1]; + out[2] = -a[2]; + return out; + }; + + /** + * Returns the inverse of the components of a vec3 + * + * @param {vec3} out the receiving vector + * @param {vec3} a vector to invert + * @returns {vec3} out + */ + vec3.inverse = function(out, a) { + out[0] = 1.0 / a[0]; + out[1] = 1.0 / a[1]; + out[2] = 1.0 / a[2]; + return out; + }; + + /** + * Normalize a vec3 + * + * @param {vec3} out the receiving vector + * @param {vec3} a vector to normalize + * @returns {vec3} out + */ + vec3.normalize = function(out, a) { + var x = a[0], + y = a[1], + z = a[2]; + var len = x*x + y*y + z*z; + if (len > 0) { + //TODO: evaluate use of glm_invsqrt here? + len = 1 / Math.sqrt(len); + out[0] = a[0] * len; + out[1] = a[1] * len; + out[2] = a[2] * len; + } + return out; + }; + + /** + * Calculates the dot product of two vec3's + * + * @param {vec3} a the first operand + * @param {vec3} b the second operand + * @returns {Number} dot product of a and b + */ + vec3.dot = function (a, b) { + return a[0] * b[0] + a[1] * b[1] + a[2] * b[2]; + }; + + /** + * Computes the cross product of two vec3's + * + * @param {vec3} out the receiving vector + * @param {vec3} a the first operand + * @param {vec3} b the second operand + * @returns {vec3} out + */ + vec3.cross = function(out, a, b) { + var ax = a[0], ay = a[1], az = a[2], + bx = b[0], by = b[1], bz = b[2]; + + out[0] = ay * bz - az * by; + out[1] = az * bx - ax * bz; + out[2] = ax * by - ay * bx; + return out; + }; + + /** + * Performs a linear interpolation between two vec3's + * + * @param {vec3} out the receiving vector + * @param {vec3} a the first operand + * @param {vec3} b the second operand + * @param {Number} t interpolation amount between the two inputs + * @returns {vec3} out + */ + vec3.lerp = function (out, a, b, t) { + var ax = a[0], + ay = a[1], + az = a[2]; + out[0] = ax + t * (b[0] - ax); + out[1] = ay + t * (b[1] - ay); + out[2] = az + t * (b[2] - az); + return out; + }; + + /** + * Performs a hermite interpolation with two control points + * + * @param {vec3} out the receiving vector + * @param {vec3} a the first operand + * @param {vec3} b the second operand + * @param {vec3} c the third operand + * @param {vec3} d the fourth operand + * @param {Number} t interpolation amount between the two inputs + * @returns {vec3} out + */ + vec3.hermite = function (out, a, b, c, d, t) { + var factorTimes2 = t * t, + factor1 = factorTimes2 * (2 * t - 3) + 1, + factor2 = factorTimes2 * (t - 2) + t, + factor3 = factorTimes2 * (t - 1), + factor4 = factorTimes2 * (3 - 2 * t); + + out[0] = a[0] * factor1 + b[0] * factor2 + c[0] * factor3 + d[0] * factor4; + out[1] = a[1] * factor1 + b[1] * factor2 + c[1] * factor3 + d[1] * factor4; + out[2] = a[2] * factor1 + b[2] * factor2 + c[2] * factor3 + d[2] * factor4; + + return out; + }; + + /** + * Performs a bezier interpolation with two control points + * + * @param {vec3} out the receiving vector + * @param {vec3} a the first operand + * @param {vec3} b the second operand + * @param {vec3} c the third operand + * @param {vec3} d the fourth operand + * @param {Number} t interpolation amount between the two inputs + * @returns {vec3} out + */ + vec3.bezier = function (out, a, b, c, d, t) { + var inverseFactor = 1 - t, + inverseFactorTimesTwo = inverseFactor * inverseFactor, + factorTimes2 = t * t, + factor1 = inverseFactorTimesTwo * inverseFactor, + factor2 = 3 * t * inverseFactorTimesTwo, + factor3 = 3 * factorTimes2 * inverseFactor, + factor4 = factorTimes2 * t; + + out[0] = a[0] * factor1 + b[0] * factor2 + c[0] * factor3 + d[0] * factor4; + out[1] = a[1] * factor1 + b[1] * factor2 + c[1] * factor3 + d[1] * factor4; + out[2] = a[2] * factor1 + b[2] * factor2 + c[2] * factor3 + d[2] * factor4; + + return out; + }; + + /** + * Generates a random vector with the given scale + * + * @param {vec3} out the receiving vector + * @param {Number} [scale] Length of the resulting vector. If ommitted, a unit vector will be returned + * @returns {vec3} out + */ + vec3.random = function (out, scale) { + scale = scale || 1.0; + + var r = glMatrix.RANDOM() * 2.0 * Math.PI; + var z = (glMatrix.RANDOM() * 2.0) - 1.0; + var zScale = Math.sqrt(1.0-z*z) * scale; + + out[0] = Math.cos(r) * zScale; + out[1] = Math.sin(r) * zScale; + out[2] = z * scale; + return out; + }; + + /** + * Transforms the vec3 with a mat4. + * 4th vector component is implicitly '1' + * + * @param {vec3} out the receiving vector + * @param {vec3} a the vector to transform + * @param {mat4} m matrix to transform with + * @returns {vec3} out + */ + vec3.transformMat4 = function(out, a, m) { + var x = a[0], y = a[1], z = a[2], + w = m[3] * x + m[7] * y + m[11] * z + m[15]; + w = w || 1.0; + out[0] = (m[0] * x + m[4] * y + m[8] * z + m[12]) / w; + out[1] = (m[1] * x + m[5] * y + m[9] * z + m[13]) / w; + out[2] = (m[2] * x + m[6] * y + m[10] * z + m[14]) / w; + return out; + }; + + /** + * Transforms the vec3 with a mat3. + * + * @param {vec3} out the receiving vector + * @param {vec3} a the vector to transform + * @param {mat4} m the 3x3 matrix to transform with + * @returns {vec3} out + */ + vec3.transformMat3 = function(out, a, m) { + var x = a[0], y = a[1], z = a[2]; + out[0] = x * m[0] + y * m[3] + z * m[6]; + out[1] = x * m[1] + y * m[4] + z * m[7]; + out[2] = x * m[2] + y * m[5] + z * m[8]; + return out; + }; + + /** + * Transforms the vec3 with a quat + * + * @param {vec3} out the receiving vector + * @param {vec3} a the vector to transform + * @param {quat} q quaternion to transform with + * @returns {vec3} out + */ + vec3.transformQuat = function(out, a, q) { + // benchmarks: http://jsperf.com/quaternion-transform-vec3-implementations + + var x = a[0], y = a[1], z = a[2], + qx = q[0], qy = q[1], qz = q[2], qw = q[3], + + // calculate quat * vec + ix = qw * x + qy * z - qz * y, + iy = qw * y + qz * x - qx * z, + iz = qw * z + qx * y - qy * x, + iw = -qx * x - qy * y - qz * z; + + // calculate result * inverse quat + out[0] = ix * qw + iw * -qx + iy * -qz - iz * -qy; + out[1] = iy * qw + iw * -qy + iz * -qx - ix * -qz; + out[2] = iz * qw + iw * -qz + ix * -qy - iy * -qx; + return out; + }; + + /** + * Rotate a 3D vector around the x-axis + * @param {vec3} out The receiving vec3 + * @param {vec3} a The vec3 point to rotate + * @param {vec3} b The origin of the rotation + * @param {Number} c The angle of rotation + * @returns {vec3} out + */ + vec3.rotateX = function(out, a, b, c){ + var p = [], r=[]; + //Translate point to the origin + p[0] = a[0] - b[0]; + p[1] = a[1] - b[1]; + p[2] = a[2] - b[2]; + + //perform rotation + r[0] = p[0]; + r[1] = p[1]*Math.cos(c) - p[2]*Math.sin(c); + r[2] = p[1]*Math.sin(c) + p[2]*Math.cos(c); + + //translate to correct position + out[0] = r[0] + b[0]; + out[1] = r[1] + b[1]; + out[2] = r[2] + b[2]; + + return out; + }; + + /** + * Rotate a 3D vector around the y-axis + * @param {vec3} out The receiving vec3 + * @param {vec3} a The vec3 point to rotate + * @param {vec3} b The origin of the rotation + * @param {Number} c The angle of rotation + * @returns {vec3} out + */ + vec3.rotateY = function(out, a, b, c){ + var p = [], r=[]; + //Translate point to the origin + p[0] = a[0] - b[0]; + p[1] = a[1] - b[1]; + p[2] = a[2] - b[2]; + + //perform rotation + r[0] = p[2]*Math.sin(c) + p[0]*Math.cos(c); + r[1] = p[1]; + r[2] = p[2]*Math.cos(c) - p[0]*Math.sin(c); + + //translate to correct position + out[0] = r[0] + b[0]; + out[1] = r[1] + b[1]; + out[2] = r[2] + b[2]; + + return out; + }; + + /** + * Rotate a 3D vector around the z-axis + * @param {vec3} out The receiving vec3 + * @param {vec3} a The vec3 point to rotate + * @param {vec3} b The origin of the rotation + * @param {Number} c The angle of rotation + * @returns {vec3} out + */ + vec3.rotateZ = function(out, a, b, c){ + var p = [], r=[]; + //Translate point to the origin + p[0] = a[0] - b[0]; + p[1] = a[1] - b[1]; + p[2] = a[2] - b[2]; + + //perform rotation + r[0] = p[0]*Math.cos(c) - p[1]*Math.sin(c); + r[1] = p[0]*Math.sin(c) + p[1]*Math.cos(c); + r[2] = p[2]; + + //translate to correct position + out[0] = r[0] + b[0]; + out[1] = r[1] + b[1]; + out[2] = r[2] + b[2]; + + return out; + }; + + /** + * Perform some operation over an array of vec3s. + * + * @param {Array} a the array of vectors to iterate over + * @param {Number} stride Number of elements between the start of each vec3. If 0 assumes tightly packed + * @param {Number} offset Number of elements to skip at the beginning of the array + * @param {Number} count Number of vec3s to iterate over. If 0 iterates over entire array + * @param {Function} fn Function to call for each vector in the array + * @param {Object} [arg] additional argument to pass to fn + * @returns {Array} a + * @function + */ + vec3.forEach = (function() { + var vec = vec3.create(); + + return function(a, stride, offset, count, fn, arg) { + var i, l; + if(!stride) { + stride = 3; + } + + if(!offset) { + offset = 0; + } + + if(count) { + l = Math.min((count * stride) + offset, a.length); + } else { + l = a.length; + } + + for(i = offset; i < l; i += stride) { + vec[0] = a[i]; vec[1] = a[i+1]; vec[2] = a[i+2]; + fn(vec, vec, arg); + a[i] = vec[0]; a[i+1] = vec[1]; a[i+2] = vec[2]; + } + + return a; + }; + })(); + + /** + * Get the angle between two 3D vectors + * @param {vec3} a The first operand + * @param {vec3} b The second operand + * @returns {Number} The angle in radians + */ + vec3.angle = function(a, b) { + + var tempA = vec3.fromValues(a[0], a[1], a[2]); + var tempB = vec3.fromValues(b[0], b[1], b[2]); + + vec3.normalize(tempA, tempA); + vec3.normalize(tempB, tempB); + + var cosine = vec3.dot(tempA, tempB); + + if(cosine > 1.0){ + return 0; + } else { + return Math.acos(cosine); + } + }; + + /** + * Returns a string representation of a vector + * + * @param {vec3} vec vector to represent as a string + * @returns {String} string representation of the vector + */ + vec3.str = function (a) { + return 'vec3(' + a[0] + ', ' + a[1] + ', ' + a[2] + ')'; + }; + + module.exports = vec3; + + +/***/ }, +/* 17 */ +/***/ function(module, exports, __webpack_require__) { + + /* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV. + + Permission is hereby granted, free of charge, to any person obtaining a copy + of this software and associated documentation files (the "Software"), to deal + in the Software without restriction, including without limitation the rights + to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + copies of the Software, and to permit persons to whom the Software is + furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included in + all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + THE SOFTWARE. */ + + var glMatrix = __webpack_require__(10); + + /** + * @class 4 Dimensional Vector + * @name vec4 + */ + var vec4 = {}; + + /** + * Creates a new, empty vec4 + * + * @returns {vec4} a new 4D vector + */ + vec4.create = function() { + var out = new glMatrix.ARRAY_TYPE(4); + out[0] = 0; + out[1] = 0; + out[2] = 0; + out[3] = 0; + return out; + }; + + /** + * Creates a new vec4 initialized with values from an existing vector + * + * @param {vec4} a vector to clone + * @returns {vec4} a new 4D vector + */ + vec4.clone = function(a) { + var out = new glMatrix.ARRAY_TYPE(4); + out[0] = a[0]; + out[1] = a[1]; + out[2] = a[2]; + out[3] = a[3]; + return out; + }; + + /** + * Creates a new vec4 initialized with the given values + * + * @param {Number} x X component + * @param {Number} y Y component + * @param {Number} z Z component + * @param {Number} w W component + * @returns {vec4} a new 4D vector + */ + vec4.fromValues = function(x, y, z, w) { + var out = new glMatrix.ARRAY_TYPE(4); + out[0] = x; + out[1] = y; + out[2] = z; + out[3] = w; + return out; + }; + + /** + * Copy the values from one vec4 to another + * + * @param {vec4} out the receiving vector + * @param {vec4} a the source vector + * @returns {vec4} out + */ + vec4.copy = function(out, a) { + out[0] = a[0]; + out[1] = a[1]; + out[2] = a[2]; + out[3] = a[3]; + return out; + }; + + /** + * Set the components of a vec4 to the given values + * + * @param {vec4} out the receiving vector + * @param {Number} x X component + * @param {Number} y Y component + * @param {Number} z Z component + * @param {Number} w W component + * @returns {vec4} out + */ + vec4.set = function(out, x, y, z, w) { + out[0] = x; + out[1] = y; + out[2] = z; + out[3] = w; + return out; + }; + + /** + * Adds two vec4's + * + * @param {vec4} out the receiving vector + * @param {vec4} a the first operand + * @param {vec4} b the second operand + * @returns {vec4} out + */ + vec4.add = function(out, a, b) { + out[0] = a[0] + b[0]; + out[1] = a[1] + b[1]; + out[2] = a[2] + b[2]; + out[3] = a[3] + b[3]; + return out; + }; + + /** + * Subtracts vector b from vector a + * + * @param {vec4} out the receiving vector + * @param {vec4} a the first operand + * @param {vec4} b the second operand + * @returns {vec4} out + */ + vec4.subtract = function(out, a, b) { + out[0] = a[0] - b[0]; + out[1] = a[1] - b[1]; + out[2] = a[2] - b[2]; + out[3] = a[3] - b[3]; + return out; + }; + + /** + * Alias for {@link vec4.subtract} + * @function + */ + vec4.sub = vec4.subtract; + + /** + * Multiplies two vec4's + * + * @param {vec4} out the receiving vector + * @param {vec4} a the first operand + * @param {vec4} b the second operand + * @returns {vec4} out + */ + vec4.multiply = function(out, a, b) { + out[0] = a[0] * b[0]; + out[1] = a[1] * b[1]; + out[2] = a[2] * b[2]; + out[3] = a[3] * b[3]; + return out; + }; + + /** + * Alias for {@link vec4.multiply} + * @function + */ + vec4.mul = vec4.multiply; + + /** + * Divides two vec4's + * + * @param {vec4} out the receiving vector + * @param {vec4} a the first operand + * @param {vec4} b the second operand + * @returns {vec4} out + */ + vec4.divide = function(out, a, b) { + out[0] = a[0] / b[0]; + out[1] = a[1] / b[1]; + out[2] = a[2] / b[2]; + out[3] = a[3] / b[3]; + return out; + }; + + /** + * Alias for {@link vec4.divide} + * @function + */ + vec4.div = vec4.divide; + + /** + * Returns the minimum of two vec4's + * + * @param {vec4} out the receiving vector + * @param {vec4} a the first operand + * @param {vec4} b the second operand + * @returns {vec4} out + */ + vec4.min = function(out, a, b) { + out[0] = Math.min(a[0], b[0]); + out[1] = Math.min(a[1], b[1]); + out[2] = Math.min(a[2], b[2]); + out[3] = Math.min(a[3], b[3]); + return out; + }; + + /** + * Returns the maximum of two vec4's + * + * @param {vec4} out the receiving vector + * @param {vec4} a the first operand + * @param {vec4} b the second operand + * @returns {vec4} out + */ + vec4.max = function(out, a, b) { + out[0] = Math.max(a[0], b[0]); + out[1] = Math.max(a[1], b[1]); + out[2] = Math.max(a[2], b[2]); + out[3] = Math.max(a[3], b[3]); + return out; + }; + + /** + * Scales a vec4 by a scalar number + * + * @param {vec4} out the receiving vector + * @param {vec4} a the vector to scale + * @param {Number} b amount to scale the vector by + * @returns {vec4} out + */ + vec4.scale = function(out, a, b) { + out[0] = a[0] * b; + out[1] = a[1] * b; + out[2] = a[2] * b; + out[3] = a[3] * b; + return out; + }; + + /** + * Adds two vec4's after scaling the second operand by a scalar value + * + * @param {vec4} out the receiving vector + * @param {vec4} a the first operand + * @param {vec4} b the second operand + * @param {Number} scale the amount to scale b by before adding + * @returns {vec4} out + */ + vec4.scaleAndAdd = function(out, a, b, scale) { + out[0] = a[0] + (b[0] * scale); + out[1] = a[1] + (b[1] * scale); + out[2] = a[2] + (b[2] * scale); + out[3] = a[3] + (b[3] * scale); + return out; + }; + + /** + * Calculates the euclidian distance between two vec4's + * + * @param {vec4} a the first operand + * @param {vec4} b the second operand + * @returns {Number} distance between a and b + */ + vec4.distance = function(a, b) { + var x = b[0] - a[0], + y = b[1] - a[1], + z = b[2] - a[2], + w = b[3] - a[3]; + return Math.sqrt(x*x + y*y + z*z + w*w); + }; + + /** + * Alias for {@link vec4.distance} + * @function + */ + vec4.dist = vec4.distance; + + /** + * Calculates the squared euclidian distance between two vec4's + * + * @param {vec4} a the first operand + * @param {vec4} b the second operand + * @returns {Number} squared distance between a and b + */ + vec4.squaredDistance = function(a, b) { + var x = b[0] - a[0], + y = b[1] - a[1], + z = b[2] - a[2], + w = b[3] - a[3]; + return x*x + y*y + z*z + w*w; + }; + + /** + * Alias for {@link vec4.squaredDistance} + * @function + */ + vec4.sqrDist = vec4.squaredDistance; + + /** + * Calculates the length of a vec4 + * + * @param {vec4} a vector to calculate length of + * @returns {Number} length of a + */ + vec4.length = function (a) { + var x = a[0], + y = a[1], + z = a[2], + w = a[3]; + return Math.sqrt(x*x + y*y + z*z + w*w); + }; + + /** + * Alias for {@link vec4.length} + * @function + */ + vec4.len = vec4.length; + + /** + * Calculates the squared length of a vec4 + * + * @param {vec4} a vector to calculate squared length of + * @returns {Number} squared length of a + */ + vec4.squaredLength = function (a) { + var x = a[0], + y = a[1], + z = a[2], + w = a[3]; + return x*x + y*y + z*z + w*w; + }; + + /** + * Alias for {@link vec4.squaredLength} + * @function + */ + vec4.sqrLen = vec4.squaredLength; + + /** + * Negates the components of a vec4 + * + * @param {vec4} out the receiving vector + * @param {vec4} a vector to negate + * @returns {vec4} out + */ + vec4.negate = function(out, a) { + out[0] = -a[0]; + out[1] = -a[1]; + out[2] = -a[2]; + out[3] = -a[3]; + return out; + }; + + /** + * Returns the inverse of the components of a vec4 + * + * @param {vec4} out the receiving vector + * @param {vec4} a vector to invert + * @returns {vec4} out + */ + vec4.inverse = function(out, a) { + out[0] = 1.0 / a[0]; + out[1] = 1.0 / a[1]; + out[2] = 1.0 / a[2]; + out[3] = 1.0 / a[3]; + return out; + }; + + /** + * Normalize a vec4 + * + * @param {vec4} out the receiving vector + * @param {vec4} a vector to normalize + * @returns {vec4} out + */ + vec4.normalize = function(out, a) { + var x = a[0], + y = a[1], + z = a[2], + w = a[3]; + var len = x*x + y*y + z*z + w*w; + if (len > 0) { + len = 1 / Math.sqrt(len); + out[0] = x * len; + out[1] = y * len; + out[2] = z * len; + out[3] = w * len; + } + return out; + }; + + /** + * Calculates the dot product of two vec4's + * + * @param {vec4} a the first operand + * @param {vec4} b the second operand + * @returns {Number} dot product of a and b + */ + vec4.dot = function (a, b) { + return a[0] * b[0] + a[1] * b[1] + a[2] * b[2] + a[3] * b[3]; + }; + + /** + * Performs a linear interpolation between two vec4's + * + * @param {vec4} out the receiving vector + * @param {vec4} a the first operand + * @param {vec4} b the second operand + * @param {Number} t interpolation amount between the two inputs + * @returns {vec4} out + */ + vec4.lerp = function (out, a, b, t) { + var ax = a[0], + ay = a[1], + az = a[2], + aw = a[3]; + out[0] = ax + t * (b[0] - ax); + out[1] = ay + t * (b[1] - ay); + out[2] = az + t * (b[2] - az); + out[3] = aw + t * (b[3] - aw); + return out; + }; + + /** + * Generates a random vector with the given scale + * + * @param {vec4} out the receiving vector + * @param {Number} [scale] Length of the resulting vector. If ommitted, a unit vector will be returned + * @returns {vec4} out + */ + vec4.random = function (out, scale) { + scale = scale || 1.0; + + //TODO: This is a pretty awful way of doing this. Find something better. + out[0] = glMatrix.RANDOM(); + out[1] = glMatrix.RANDOM(); + out[2] = glMatrix.RANDOM(); + out[3] = glMatrix.RANDOM(); + vec4.normalize(out, out); + vec4.scale(out, out, scale); + return out; + }; + + /** + * Transforms the vec4 with a mat4. + * + * @param {vec4} out the receiving vector + * @param {vec4} a the vector to transform + * @param {mat4} m matrix to transform with + * @returns {vec4} out + */ + vec4.transformMat4 = function(out, a, m) { + var x = a[0], y = a[1], z = a[2], w = a[3]; + out[0] = m[0] * x + m[4] * y + m[8] * z + m[12] * w; + out[1] = m[1] * x + m[5] * y + m[9] * z + m[13] * w; + out[2] = m[2] * x + m[6] * y + m[10] * z + m[14] * w; + out[3] = m[3] * x + m[7] * y + m[11] * z + m[15] * w; + return out; + }; + + /** + * Transforms the vec4 with a quat + * + * @param {vec4} out the receiving vector + * @param {vec4} a the vector to transform + * @param {quat} q quaternion to transform with + * @returns {vec4} out + */ + vec4.transformQuat = function(out, a, q) { + var x = a[0], y = a[1], z = a[2], + qx = q[0], qy = q[1], qz = q[2], qw = q[3], + + // calculate quat * vec + ix = qw * x + qy * z - qz * y, + iy = qw * y + qz * x - qx * z, + iz = qw * z + qx * y - qy * x, + iw = -qx * x - qy * y - qz * z; + + // calculate result * inverse quat + out[0] = ix * qw + iw * -qx + iy * -qz - iz * -qy; + out[1] = iy * qw + iw * -qy + iz * -qx - ix * -qz; + out[2] = iz * qw + iw * -qz + ix * -qy - iy * -qx; + out[3] = a[3]; + return out; + }; + + /** + * Perform some operation over an array of vec4s. + * + * @param {Array} a the array of vectors to iterate over + * @param {Number} stride Number of elements between the start of each vec4. If 0 assumes tightly packed + * @param {Number} offset Number of elements to skip at the beginning of the array + * @param {Number} count Number of vec4s to iterate over. If 0 iterates over entire array + * @param {Function} fn Function to call for each vector in the array + * @param {Object} [arg] additional argument to pass to fn + * @returns {Array} a + * @function + */ + vec4.forEach = (function() { + var vec = vec4.create(); + + return function(a, stride, offset, count, fn, arg) { + var i, l; + if(!stride) { + stride = 4; + } + + if(!offset) { + offset = 0; + } + + if(count) { + l = Math.min((count * stride) + offset, a.length); + } else { + l = a.length; + } + + for(i = offset; i < l; i += stride) { + vec[0] = a[i]; vec[1] = a[i+1]; vec[2] = a[i+2]; vec[3] = a[i+3]; + fn(vec, vec, arg); + a[i] = vec[0]; a[i+1] = vec[1]; a[i+2] = vec[2]; a[i+3] = vec[3]; + } + + return a; + }; + })(); + + /** + * Returns a string representation of a vector + * + * @param {vec4} vec vector to represent as a string + * @returns {String} string representation of the vector + */ + vec4.str = function (a) { + return 'vec4(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' + a[3] + ')'; + }; + + module.exports = vec4; + + +/***/ }, +/* 18 */ +/***/ function(module, exports, __webpack_require__) { + + /* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV. + + Permission is hereby granted, free of charge, to any person obtaining a copy + of this software and associated documentation files (the "Software"), to deal + in the Software without restriction, including without limitation the rights + to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + copies of the Software, and to permit persons to whom the Software is + furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included in + all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + THE SOFTWARE. */ + + var glMatrix = __webpack_require__(10); + + /** + * @class 2 Dimensional Vector + * @name vec2 + */ + var vec2 = {}; + + /** + * Creates a new, empty vec2 + * + * @returns {vec2} a new 2D vector + */ + vec2.create = function() { + var out = new glMatrix.ARRAY_TYPE(2); + out[0] = 0; + out[1] = 0; + return out; + }; + + /** + * Creates a new vec2 initialized with values from an existing vector + * + * @param {vec2} a vector to clone + * @returns {vec2} a new 2D vector + */ + vec2.clone = function(a) { + var out = new glMatrix.ARRAY_TYPE(2); + out[0] = a[0]; + out[1] = a[1]; + return out; + }; + + /** + * Creates a new vec2 initialized with the given values + * + * @param {Number} x X component + * @param {Number} y Y component + * @returns {vec2} a new 2D vector + */ + vec2.fromValues = function(x, y) { + var out = new glMatrix.ARRAY_TYPE(2); + out[0] = x; + out[1] = y; + return out; + }; + + /** + * Copy the values from one vec2 to another + * + * @param {vec2} out the receiving vector + * @param {vec2} a the source vector + * @returns {vec2} out + */ + vec2.copy = function(out, a) { + out[0] = a[0]; + out[1] = a[1]; + return out; + }; + + /** + * Set the components of a vec2 to the given values + * + * @param {vec2} out the receiving vector + * @param {Number} x X component + * @param {Number} y Y component + * @returns {vec2} out + */ + vec2.set = function(out, x, y) { + out[0] = x; + out[1] = y; + return out; + }; + + /** + * Adds two vec2's + * + * @param {vec2} out the receiving vector + * @param {vec2} a the first operand + * @param {vec2} b the second operand + * @returns {vec2} out + */ + vec2.add = function(out, a, b) { + out[0] = a[0] + b[0]; + out[1] = a[1] + b[1]; + return out; + }; + + /** + * Subtracts vector b from vector a + * + * @param {vec2} out the receiving vector + * @param {vec2} a the first operand + * @param {vec2} b the second operand + * @returns {vec2} out + */ + vec2.subtract = function(out, a, b) { + out[0] = a[0] - b[0]; + out[1] = a[1] - b[1]; + return out; + }; + + /** + * Alias for {@link vec2.subtract} + * @function + */ + vec2.sub = vec2.subtract; + + /** + * Multiplies two vec2's + * + * @param {vec2} out the receiving vector + * @param {vec2} a the first operand + * @param {vec2} b the second operand + * @returns {vec2} out + */ + vec2.multiply = function(out, a, b) { + out[0] = a[0] * b[0]; + out[1] = a[1] * b[1]; + return out; + }; + + /** + * Alias for {@link vec2.multiply} + * @function + */ + vec2.mul = vec2.multiply; + + /** + * Divides two vec2's + * + * @param {vec2} out the receiving vector + * @param {vec2} a the first operand + * @param {vec2} b the second operand + * @returns {vec2} out + */ + vec2.divide = function(out, a, b) { + out[0] = a[0] / b[0]; + out[1] = a[1] / b[1]; + return out; + }; + + /** + * Alias for {@link vec2.divide} + * @function + */ + vec2.div = vec2.divide; + + /** + * Returns the minimum of two vec2's + * + * @param {vec2} out the receiving vector + * @param {vec2} a the first operand + * @param {vec2} b the second operand + * @returns {vec2} out + */ + vec2.min = function(out, a, b) { + out[0] = Math.min(a[0], b[0]); + out[1] = Math.min(a[1], b[1]); + return out; + }; + + /** + * Returns the maximum of two vec2's + * + * @param {vec2} out the receiving vector + * @param {vec2} a the first operand + * @param {vec2} b the second operand + * @returns {vec2} out + */ + vec2.max = function(out, a, b) { + out[0] = Math.max(a[0], b[0]); + out[1] = Math.max(a[1], b[1]); + return out; + }; + + /** + * Scales a vec2 by a scalar number + * + * @param {vec2} out the receiving vector + * @param {vec2} a the vector to scale + * @param {Number} b amount to scale the vector by + * @returns {vec2} out + */ + vec2.scale = function(out, a, b) { + out[0] = a[0] * b; + out[1] = a[1] * b; + return out; + }; + + /** + * Adds two vec2's after scaling the second operand by a scalar value + * + * @param {vec2} out the receiving vector + * @param {vec2} a the first operand + * @param {vec2} b the second operand + * @param {Number} scale the amount to scale b by before adding + * @returns {vec2} out + */ + vec2.scaleAndAdd = function(out, a, b, scale) { + out[0] = a[0] + (b[0] * scale); + out[1] = a[1] + (b[1] * scale); + return out; + }; + + /** + * Calculates the euclidian distance between two vec2's + * + * @param {vec2} a the first operand + * @param {vec2} b the second operand + * @returns {Number} distance between a and b + */ + vec2.distance = function(a, b) { + var x = b[0] - a[0], + y = b[1] - a[1]; + return Math.sqrt(x*x + y*y); + }; + + /** + * Alias for {@link vec2.distance} + * @function + */ + vec2.dist = vec2.distance; + + /** + * Calculates the squared euclidian distance between two vec2's + * + * @param {vec2} a the first operand + * @param {vec2} b the second operand + * @returns {Number} squared distance between a and b + */ + vec2.squaredDistance = function(a, b) { + var x = b[0] - a[0], + y = b[1] - a[1]; + return x*x + y*y; + }; + + /** + * Alias for {@link vec2.squaredDistance} + * @function + */ + vec2.sqrDist = vec2.squaredDistance; + + /** + * Calculates the length of a vec2 + * + * @param {vec2} a vector to calculate length of + * @returns {Number} length of a + */ + vec2.length = function (a) { + var x = a[0], + y = a[1]; + return Math.sqrt(x*x + y*y); + }; + + /** + * Alias for {@link vec2.length} + * @function + */ + vec2.len = vec2.length; + + /** + * Calculates the squared length of a vec2 + * + * @param {vec2} a vector to calculate squared length of + * @returns {Number} squared length of a + */ + vec2.squaredLength = function (a) { + var x = a[0], + y = a[1]; + return x*x + y*y; + }; + + /** + * Alias for {@link vec2.squaredLength} + * @function + */ + vec2.sqrLen = vec2.squaredLength; + + /** + * Negates the components of a vec2 + * + * @param {vec2} out the receiving vector + * @param {vec2} a vector to negate + * @returns {vec2} out + */ + vec2.negate = function(out, a) { + out[0] = -a[0]; + out[1] = -a[1]; + return out; + }; + + /** + * Returns the inverse of the components of a vec2 + * + * @param {vec2} out the receiving vector + * @param {vec2} a vector to invert + * @returns {vec2} out + */ + vec2.inverse = function(out, a) { + out[0] = 1.0 / a[0]; + out[1] = 1.0 / a[1]; + return out; + }; + + /** + * Normalize a vec2 + * + * @param {vec2} out the receiving vector + * @param {vec2} a vector to normalize + * @returns {vec2} out + */ + vec2.normalize = function(out, a) { + var x = a[0], + y = a[1]; + var len = x*x + y*y; + if (len > 0) { + //TODO: evaluate use of glm_invsqrt here? + len = 1 / Math.sqrt(len); + out[0] = a[0] * len; + out[1] = a[1] * len; + } + return out; + }; + + /** + * Calculates the dot product of two vec2's + * + * @param {vec2} a the first operand + * @param {vec2} b the second operand + * @returns {Number} dot product of a and b + */ + vec2.dot = function (a, b) { + return a[0] * b[0] + a[1] * b[1]; + }; + + /** + * Computes the cross product of two vec2's + * Note that the cross product must by definition produce a 3D vector + * + * @param {vec3} out the receiving vector + * @param {vec2} a the first operand + * @param {vec2} b the second operand + * @returns {vec3} out + */ + vec2.cross = function(out, a, b) { + var z = a[0] * b[1] - a[1] * b[0]; + out[0] = out[1] = 0; + out[2] = z; + return out; + }; + + /** + * Performs a linear interpolation between two vec2's + * + * @param {vec2} out the receiving vector + * @param {vec2} a the first operand + * @param {vec2} b the second operand + * @param {Number} t interpolation amount between the two inputs + * @returns {vec2} out + */ + vec2.lerp = function (out, a, b, t) { + var ax = a[0], + ay = a[1]; + out[0] = ax + t * (b[0] - ax); + out[1] = ay + t * (b[1] - ay); + return out; + }; + + /** + * Generates a random vector with the given scale + * + * @param {vec2} out the receiving vector + * @param {Number} [scale] Length of the resulting vector. If ommitted, a unit vector will be returned + * @returns {vec2} out + */ + vec2.random = function (out, scale) { + scale = scale || 1.0; + var r = glMatrix.RANDOM() * 2.0 * Math.PI; + out[0] = Math.cos(r) * scale; + out[1] = Math.sin(r) * scale; + return out; + }; + + /** + * Transforms the vec2 with a mat2 + * + * @param {vec2} out the receiving vector + * @param {vec2} a the vector to transform + * @param {mat2} m matrix to transform with + * @returns {vec2} out + */ + vec2.transformMat2 = function(out, a, m) { + var x = a[0], + y = a[1]; + out[0] = m[0] * x + m[2] * y; + out[1] = m[1] * x + m[3] * y; + return out; + }; + + /** + * Transforms the vec2 with a mat2d + * + * @param {vec2} out the receiving vector + * @param {vec2} a the vector to transform + * @param {mat2d} m matrix to transform with + * @returns {vec2} out + */ + vec2.transformMat2d = function(out, a, m) { + var x = a[0], + y = a[1]; + out[0] = m[0] * x + m[2] * y + m[4]; + out[1] = m[1] * x + m[3] * y + m[5]; + return out; + }; + + /** + * Transforms the vec2 with a mat3 + * 3rd vector component is implicitly '1' + * + * @param {vec2} out the receiving vector + * @param {vec2} a the vector to transform + * @param {mat3} m matrix to transform with + * @returns {vec2} out + */ + vec2.transformMat3 = function(out, a, m) { + var x = a[0], + y = a[1]; + out[0] = m[0] * x + m[3] * y + m[6]; + out[1] = m[1] * x + m[4] * y + m[7]; + return out; + }; + + /** + * Transforms the vec2 with a mat4 + * 3rd vector component is implicitly '0' + * 4th vector component is implicitly '1' + * + * @param {vec2} out the receiving vector + * @param {vec2} a the vector to transform + * @param {mat4} m matrix to transform with + * @returns {vec2} out + */ + vec2.transformMat4 = function(out, a, m) { + var x = a[0], + y = a[1]; + out[0] = m[0] * x + m[4] * y + m[12]; + out[1] = m[1] * x + m[5] * y + m[13]; + return out; + }; + + /** + * Perform some operation over an array of vec2s. + * + * @param {Array} a the array of vectors to iterate over + * @param {Number} stride Number of elements between the start of each vec2. If 0 assumes tightly packed + * @param {Number} offset Number of elements to skip at the beginning of the array + * @param {Number} count Number of vec2s to iterate over. If 0 iterates over entire array + * @param {Function} fn Function to call for each vector in the array + * @param {Object} [arg] additional argument to pass to fn + * @returns {Array} a + * @function + */ + vec2.forEach = (function() { + var vec = vec2.create(); + + return function(a, stride, offset, count, fn, arg) { + var i, l; + if(!stride) { + stride = 2; + } + + if(!offset) { + offset = 0; + } + + if(count) { + l = Math.min((count * stride) + offset, a.length); + } else { + l = a.length; + } + + for(i = offset; i < l; i += stride) { + vec[0] = a[i]; vec[1] = a[i+1]; + fn(vec, vec, arg); + a[i] = vec[0]; a[i+1] = vec[1]; + } + + return a; + }; + })(); + + /** + * Returns a string representation of a vector + * + * @param {vec2} vec vector to represent as a string + * @returns {String} string representation of the vector + */ + vec2.str = function (a) { + return 'vec2(' + a[0] + ', ' + a[1] + ')'; + }; + + module.exports = vec2; + + +/***/ }, +/* 19 */ +/***/ function(module, exports) { + + "use strict"; + + Object.defineProperty(exports, "__esModule", { + value: true + }); + exports["default"] = { + init: function init(arr, val) { + var l = arr.length; + while (l--) { + arr[l] = val; + } + }, + + /** + * Shuffles the content of an array + * @return {Array} the array itself shuffled + */ + shuffle: function shuffle(arr) { + var i = arr.length - 1, + j, + x; + for (i; i >= 0; i--) { + j = Math.floor(Math.random() * i); + x = arr[i]; + arr[i] = arr[j]; + arr[j] = x; + } + return arr; + }, + + toPointList: function toPointList(arr) { + var i, + j, + row = [], + rows = []; + for (i = 0; i < arr.length; i++) { + row = []; + for (j = 0; j < arr[i].length; j++) { + row[j] = arr[i][j]; + } + rows[i] = "[" + row.join(",") + "]"; + } + return "[" + rows.join(",\r\n") + "]"; + }, + + /** + * returns the elements which's score is bigger than the threshold + * @return {Array} the reduced array + */ + threshold: function threshold(arr, _threshold, scoreFunc) { + var i, + queue = []; + for (i = 0; i < arr.length; i++) { + if (scoreFunc.apply(arr, [arr[i]]) >= _threshold) { + queue.push(arr[i]); + } + } + return queue; + }, + + maxIndex: function maxIndex(arr) { + var i, + max = 0; + for (i = 0; i < arr.length; i++) { + if (arr[i] > arr[max]) { + max = i; + } + } + return max; + }, + + max: function max(arr) { + var i, + max = 0; + for (i = 0; i < arr.length; i++) { + if (arr[i] > max) { + max = arr[i]; + } + } + return max; + }, + + sum: function sum(arr) { + var length = arr.length, + sum = 0; + + while (length--) { + sum += arr[length]; + } + return sum; + } + }; + module.exports = exports["default"]; + +/***/ }, +/* 20 */ +/***/ function(module, exports, __webpack_require__) { + + /* jshint undef: true, unused: true, browser:true, devel: true */ + /* global define */ + + 'use strict'; + + Object.defineProperty(exports, '__esModule', { + value: true + }); + + function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; } + + var _image_wrapper = __webpack_require__(5); + + var _image_wrapper2 = _interopRequireDefault(_image_wrapper); + + var _cv_utils = __webpack_require__(7); + + var _cv_utils2 = _interopRequireDefault(_cv_utils); + + var _rasterizer = __webpack_require__(21); + + var _rasterizer2 = _interopRequireDefault(_rasterizer); + + var _tracer = __webpack_require__(22); + + var _tracer2 = _interopRequireDefault(_tracer); + + var _skeletonizer2 = __webpack_require__(23); + + var _skeletonizer3 = _interopRequireDefault(_skeletonizer2); + + var _array_helper = __webpack_require__(19); + + var _array_helper2 = _interopRequireDefault(_array_helper); + + var _image_debug = __webpack_require__(24); + + var _image_debug2 = _interopRequireDefault(_image_debug); + + var _glMatrix = __webpack_require__(9); + + var _glMatrix2 = _interopRequireDefault(_glMatrix); + + var _config, + _currentImageWrapper, + _skelImageWrapper, + _subImageWrapper, + _labelImageWrapper, + _patchGrid, + _patchLabelGrid, + _imageToPatchGrid, + _binaryImageWrapper, + _patchSize, + _canvasContainer = { + ctx: { + binary: null + }, + dom: { + binary: null + } + }, + _numPatches = { x: 0, y: 0 }, + _inputImageWrapper, + _skeletonizer, + vec2 = _glMatrix2['default'].vec2, + mat2 = _glMatrix2['default'].mat2, + self = typeof window !== 'undefined' ? window : self; + + function initBuffers() { + var skeletonImageData; + + if (_config.halfSample) { + _currentImageWrapper = new _image_wrapper2['default']({ + x: _inputImageWrapper.size.x / 2 | 0, + y: _inputImageWrapper.size.y / 2 | 0 + }); + } else { + _currentImageWrapper = _inputImageWrapper; + } + + _patchSize = _cv_utils2['default'].calculatePatchSize(_config.patchSize, _currentImageWrapper.size); + + _numPatches.x = _currentImageWrapper.size.x / _patchSize.x | 0; + _numPatches.y = _currentImageWrapper.size.y / _patchSize.y | 0; + + _binaryImageWrapper = new _image_wrapper2['default'](_currentImageWrapper.size, undefined, Uint8Array, false); + + _labelImageWrapper = new _image_wrapper2['default'](_patchSize, undefined, Array, true); + + skeletonImageData = new ArrayBuffer(64 * 1024); + _subImageWrapper = new _image_wrapper2['default'](_patchSize, new Uint8Array(skeletonImageData, 0, _patchSize.x * _patchSize.y)); + _skelImageWrapper = new _image_wrapper2['default'](_patchSize, new Uint8Array(skeletonImageData, _patchSize.x * _patchSize.y * 3, _patchSize.x * _patchSize.y), undefined, true); + _skeletonizer = (0, _skeletonizer3['default'])(self, { + size: _patchSize.x + }, skeletonImageData); + + _imageToPatchGrid = new _image_wrapper2['default']({ + x: _currentImageWrapper.size.x / _subImageWrapper.size.x | 0, + y: _currentImageWrapper.size.y / _subImageWrapper.size.y | 0 + }, undefined, Array, true); + _patchGrid = new _image_wrapper2['default'](_imageToPatchGrid.size, undefined, undefined, true); + _patchLabelGrid = new _image_wrapper2['default'](_imageToPatchGrid.size, undefined, Int32Array, true); + } + + function initCanvas() { + if (_config.useWorker || typeof document === 'undefined') { + return; + } + _canvasContainer.dom.binary = document.createElement("canvas"); + _canvasContainer.dom.binary.className = "binaryBuffer"; + if (_config.showCanvas === true) { + document.querySelector("#debug").appendChild(_canvasContainer.dom.binary); + } + _canvasContainer.ctx.binary = _canvasContainer.dom.binary.getContext("2d"); + _canvasContainer.dom.binary.width = _binaryImageWrapper.size.x; + _canvasContainer.dom.binary.height = _binaryImageWrapper.size.y; + } + + /** + * Creates a bounding box which encloses all the given patches + * @returns {Array} The minimal bounding box + */ + function boxFromPatches(patches) { + var overAvg, + i, + j, + patch, + transMat, + minx = _binaryImageWrapper.size.x, + miny = _binaryImageWrapper.size.y, + maxx = -_binaryImageWrapper.size.x, + maxy = -_binaryImageWrapper.size.y, + box, + scale; + + // draw all patches which are to be taken into consideration + overAvg = 0; + for (i = 0; i < patches.length; i++) { + patch = patches[i]; + overAvg += patch.rad; + if (_config.showPatches) { + _image_debug2['default'].drawRect(patch.pos, _subImageWrapper.size, _canvasContainer.ctx.binary, { color: "red" }); + } + } + + overAvg /= patches.length; + overAvg = (overAvg * 180 / Math.PI + 90) % 180 - 90; + if (overAvg < 0) { + overAvg += 180; + } + + overAvg = (180 - overAvg) * Math.PI / 180; + transMat = mat2.clone([Math.cos(overAvg), Math.sin(overAvg), -Math.sin(overAvg), Math.cos(overAvg)]); + + // iterate over patches and rotate by angle + for (i = 0; i < patches.length; i++) { + patch = patches[i]; + for (j = 0; j < 4; j++) { + vec2.transformMat2(patch.box[j], patch.box[j], transMat); + } + + if (_config.boxFromPatches.showTransformed) { + _image_debug2['default'].drawPath(patch.box, { x: 0, y: 1 }, _canvasContainer.ctx.binary, { color: '#99ff00', lineWidth: 2 }); + } + } + + // find bounding box + for (i = 0; i < patches.length; i++) { + patch = patches[i]; + for (j = 0; j < 4; j++) { + if (patch.box[j][0] < minx) { + minx = patch.box[j][0]; + } + if (patch.box[j][0] > maxx) { + maxx = patch.box[j][0]; + } + if (patch.box[j][1] < miny) { + miny = patch.box[j][1]; + } + if (patch.box[j][1] > maxy) { + maxy = patch.box[j][1]; + } + } + } + + box = [[minx, miny], [maxx, miny], [maxx, maxy], [minx, maxy]]; + + if (_config.boxFromPatches.showTransformedBox) { + _image_debug2['default'].drawPath(box, { x: 0, y: 1 }, _canvasContainer.ctx.binary, { color: '#ff0000', lineWidth: 2 }); + } + + scale = _config.halfSample ? 2 : 1; + // reverse rotation; + transMat = mat2.invert(transMat, transMat); + for (j = 0; j < 4; j++) { + vec2.transformMat2(box[j], box[j], transMat); + } + + if (_config.boxFromPatches.showBB) { + _image_debug2['default'].drawPath(box, { x: 0, y: 1 }, _canvasContainer.ctx.binary, { color: '#ff0000', lineWidth: 2 }); + } + + for (j = 0; j < 4; j++) { + vec2.scale(box[j], box[j], scale); + } + + return box; + } + + /** + * Creates a binary image of the current image + */ + function binarizeImage() { + _cv_utils2['default'].otsuThreshold(_currentImageWrapper, _binaryImageWrapper); + _binaryImageWrapper.zeroBorder(); + if (_config.showCanvas) { + _binaryImageWrapper.show(_canvasContainer.dom.binary, 255); + } + } + + /** + * Iterate over the entire image + * extract patches + */ + function findPatches() { + var i, + j, + x, + y, + moments, + patchesFound = [], + rasterizer, + rasterResult, + patch; + for (i = 0; i < _numPatches.x; i++) { + for (j = 0; j < _numPatches.y; j++) { + + x = _subImageWrapper.size.x * i; + y = _subImageWrapper.size.y * j; + + // seperate parts + skeletonize(x, y); + + // Rasterize, find individual bars + _skelImageWrapper.zeroBorder(); + _array_helper2['default'].init(_labelImageWrapper.data, 0); + rasterizer = _rasterizer2['default'].create(_skelImageWrapper, _labelImageWrapper); + rasterResult = rasterizer.rasterize(0); + + if (_config.showLabels) { + _labelImageWrapper.overlay(_canvasContainer.dom.binary, Math.floor(360 / rasterResult.count), { x: x, y: y }); + } + + // calculate moments from the skeletonized patch + moments = _labelImageWrapper.moments(rasterResult.count); + + // extract eligible patches + patchesFound = patchesFound.concat(describePatch(moments, [i, j], x, y)); + } + } + + if (_config.showFoundPatches) { + for (i = 0; i < patchesFound.length; i++) { + patch = patchesFound[i]; + _image_debug2['default'].drawRect(patch.pos, _subImageWrapper.size, _canvasContainer.ctx.binary, { color: "#99ff00", lineWidth: 2 }); + } + } + + return patchesFound; + } + + /** + * Finds those connected areas which contain at least 6 patches + * and returns them ordered DESC by the number of contained patches + * @param {Number} maxLabel + */ + function findBiggestConnectedAreas(maxLabel) { + var i, + sum, + labelHist = [], + topLabels = []; + + for (i = 0; i < maxLabel; i++) { + labelHist.push(0); + } + sum = _patchLabelGrid.data.length; + while (sum--) { + if (_patchLabelGrid.data[sum] > 0) { + labelHist[_patchLabelGrid.data[sum] - 1]++; + } + } + + labelHist = labelHist.map(function (val, idx) { + return { + val: val, + label: idx + 1 + }; + }); + + labelHist.sort(function (a, b) { + return b.val - a.val; + }); + + // extract top areas with at least 6 patches present + topLabels = labelHist.filter(function (el) { + return el.val >= 5; + }); + + return topLabels; + } + + /** + * + */ + function findBoxes(topLabels, maxLabel) { + var i, + j, + sum, + patches = [], + patch, + box, + boxes = [], + hsv = [0, 1, 1], + rgb = [0, 0, 0]; + + for (i = 0; i < topLabels.length; i++) { + sum = _patchLabelGrid.data.length; + patches.length = 0; + while (sum--) { + if (_patchLabelGrid.data[sum] === topLabels[i].label) { + patch = _imageToPatchGrid.data[sum]; + patches.push(patch); + } + } + box = boxFromPatches(patches); + if (box) { + boxes.push(box); + + // draw patch-labels if requested + if (_config.showRemainingPatchLabels) { + for (j = 0; j < patches.length; j++) { + patch = patches[j]; + hsv[0] = topLabels[i].label / (maxLabel + 1) * 360; + _cv_utils2['default'].hsv2rgb(hsv, rgb); + _image_debug2['default'].drawRect(patch.pos, _subImageWrapper.size, _canvasContainer.ctx.binary, { color: "rgb(" + rgb.join(",") + ")", lineWidth: 2 }); + } + } + } + } + return boxes; + } + + /** + * Find similar moments (via cluster) + * @param {Object} moments + */ + function similarMoments(moments) { + var clusters = _cv_utils2['default'].cluster(moments, 0.90); + var topCluster = _cv_utils2['default'].topGeneric(clusters, 1, function (e) { + return e.getPoints().length; + }); + var points = [], + result = []; + if (topCluster.length === 1) { + points = topCluster[0].item.getPoints(); + for (var i = 0; i < points.length; i++) { + result.push(points[i].point); + } + } + return result; + } + + function skeletonize(x, y) { + _binaryImageWrapper.subImageAsCopy(_subImageWrapper, _cv_utils2['default'].imageRef(x, y)); + _skeletonizer.skeletonize(); + + // Show skeleton if requested + if (_config.showSkeleton) { + _skelImageWrapper.overlay(_canvasContainer.dom.binary, 360, _cv_utils2['default'].imageRef(x, y)); + } + } + + /** + * Extracts and describes those patches which seem to contain a barcode pattern + * @param {Array} moments + * @param {Object} patchPos, + * @param {Number} x + * @param {Number} y + * @returns {Array} list of patches + */ + function describePatch(moments, patchPos, x, y) { + var k, + avg, + sum = 0, + eligibleMoments = [], + matchingMoments, + patch, + patchesFound = [], + minComponentWeight = Math.ceil(_patchSize.x / 3); + + if (moments.length >= 2) { + // only collect moments which's area covers at least minComponentWeight pixels. + for (k = 0; k < moments.length; k++) { + if (moments[k].m00 > minComponentWeight) { + eligibleMoments.push(moments[k]); + } + } + + // if at least 2 moments are found which have at least minComponentWeights covered + if (eligibleMoments.length >= 2) { + sum = eligibleMoments.length; + matchingMoments = similarMoments(eligibleMoments); + avg = 0; + // determine the similarity of the moments + for (k = 0; k < matchingMoments.length; k++) { + avg += matchingMoments[k].rad; + } + + // Only two of the moments are allowed not to fit into the equation + // add the patch to the set + if (matchingMoments.length > 1 && matchingMoments.length >= eligibleMoments.length / 4 * 3 && matchingMoments.length > moments.length / 4) { + avg /= matchingMoments.length; + patch = { + index: patchPos[1] * _numPatches.x + patchPos[0], + pos: { + x: x, + y: y + }, + box: [vec2.clone([x, y]), vec2.clone([x + _subImageWrapper.size.x, y]), vec2.clone([x + _subImageWrapper.size.x, y + _subImageWrapper.size.y]), vec2.clone([x, y + _subImageWrapper.size.y])], + moments: matchingMoments, + rad: avg, + vec: vec2.clone([Math.cos(avg), Math.sin(avg)]) + }; + patchesFound.push(patch); + } + } + } + return patchesFound; + } + + /** + * finds patches which are connected and share the same orientation + * @param {Object} patchesFound + */ + function rasterizeAngularSimilarity(patchesFound) { + var label = 0, + threshold = 0.95, + currIdx = 0, + j, + patch, + hsv = [0, 1, 1], + rgb = [0, 0, 0]; + + function notYetProcessed() { + var i; + for (i = 0; i < _patchLabelGrid.data.length; i++) { + if (_patchLabelGrid.data[i] === 0 && _patchGrid.data[i] === 1) { + return i; + } + } + return _patchLabelGrid.length; + } + + function trace(currentIdx) { + var x, + y, + currentPatch, + patch, + idx, + dir, + current = { + x: currentIdx % _patchLabelGrid.size.x, + y: currentIdx / _patchLabelGrid.size.x | 0 + }, + similarity; + + if (currentIdx < _patchLabelGrid.data.length) { + currentPatch = _imageToPatchGrid.data[currentIdx]; + // assign label + _patchLabelGrid.data[currentIdx] = label; + for (dir = 0; dir < _tracer2['default'].searchDirections.length; dir++) { + y = current.y + _tracer2['default'].searchDirections[dir][0]; + x = current.x + _tracer2['default'].searchDirections[dir][1]; + idx = y * _patchLabelGrid.size.x + x; + + // continue if patch empty + if (_patchGrid.data[idx] === 0) { + _patchLabelGrid.data[idx] = Number.MAX_VALUE; + continue; + } + + patch = _imageToPatchGrid.data[idx]; + if (_patchLabelGrid.data[idx] === 0) { + similarity = Math.abs(vec2.dot(patch.vec, currentPatch.vec)); + if (similarity > threshold) { + trace(idx); + } + } + } + } + } + + // prepare for finding the right patches + _array_helper2['default'].init(_patchGrid.data, 0); + _array_helper2['default'].init(_patchLabelGrid.data, 0); + _array_helper2['default'].init(_imageToPatchGrid.data, null); + + for (j = 0; j < patchesFound.length; j++) { + patch = patchesFound[j]; + _imageToPatchGrid.data[patch.index] = patch; + _patchGrid.data[patch.index] = 1; + } + + // rasterize the patches found to determine area + _patchGrid.zeroBorder(); + + while ((currIdx = notYetProcessed()) < _patchLabelGrid.data.length) { + label++; + trace(currIdx); + } + + // draw patch-labels if requested + if (_config.showPatchLabels) { + for (j = 0; j < _patchLabelGrid.data.length; j++) { + if (_patchLabelGrid.data[j] > 0 && _patchLabelGrid.data[j] <= label) { + patch = _imageToPatchGrid.data[j]; + hsv[0] = _patchLabelGrid.data[j] / (label + 1) * 360; + _cv_utils2['default'].hsv2rgb(hsv, rgb); + _image_debug2['default'].drawRect(patch.pos, _subImageWrapper.size, _canvasContainer.ctx.binary, { color: "rgb(" + rgb.join(",") + ")", lineWidth: 2 }); + } + } + } + + return label; + } + + exports['default'] = { + init: function init(inputImageWrapper, config) { + _config = config; + _inputImageWrapper = inputImageWrapper; + + initBuffers(); + initCanvas(); + }, + + locate: function locate() { + var patchesFound, topLabels, boxes; + + if (_config.halfSample) { + _cv_utils2['default'].halfSample(_inputImageWrapper, _currentImageWrapper); + } + + binarizeImage(); + patchesFound = findPatches(); + // return unless 5% or more patches are found + if (patchesFound.length < _numPatches.x * _numPatches.y * 0.05) { + return null; + } + + // rasterrize area by comparing angular similarity; + var maxLabel = rasterizeAngularSimilarity(patchesFound); + if (maxLabel < 1) { + return null; + } + + // search for area with the most patches (biggest connected area) + topLabels = findBiggestConnectedAreas(maxLabel); + if (topLabels.length === 0) { + return null; + } + + boxes = findBoxes(topLabels, maxLabel); + return boxes; + }, + + checkImageConstraints: function checkImageConstraints(inputStream, config) { + var patchSize, + width = inputStream.getWidth(), + height = inputStream.getHeight(), + halfSample = config.halfSample ? 0.5 : 1, + size, + area; + + // calculate width and height based on area + if (inputStream.getConfig().area) { + area = _cv_utils2['default'].computeImageArea(width, height, inputStream.getConfig().area); + inputStream.setTopRight({ x: area.sx, y: area.sy }); + inputStream.setCanvasSize({ x: width, y: height }); + width = area.sw; + height = area.sh; + } + + size = { + x: Math.floor(width * halfSample), + y: Math.floor(height * halfSample) + }; + + patchSize = _cv_utils2['default'].calculatePatchSize(config.patchSize, size); + console.log("Patch-Size: " + JSON.stringify(patchSize)); + + inputStream.setWidth(Math.floor(Math.floor(size.x / patchSize.x) * (1 / halfSample) * patchSize.x)); + inputStream.setHeight(Math.floor(Math.floor(size.y / patchSize.y) * (1 / halfSample) * patchSize.y)); + + if (inputStream.getWidth() % patchSize.x === 0 && inputStream.getHeight() % patchSize.y === 0) { + return true; + } + + throw new Error("Image dimensions do not comply with the current settings: Width (" + width + " )and height (" + height + ") must a multiple of " + patchSize.x); + } + }; + module.exports = exports['default']; + +/***/ }, +/* 21 */ +/***/ function(module, exports, __webpack_require__) { + + "use strict"; + + Object.defineProperty(exports, "__esModule", { + value: true + }); + + function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; } + + var _tracer = __webpack_require__(22); + + var _tracer2 = _interopRequireDefault(_tracer); + + /** + * http://www.codeproject.com/Tips/407172/Connected-Component-Labeling-and-Vectorization + */ + var Rasterizer = { + createContour2D: function createContour2D() { + return { + dir: null, + index: null, + firstVertex: null, + insideContours: null, + nextpeer: null, + prevpeer: null + }; + }, + CONTOUR_DIR: { + CW_DIR: 0, + CCW_DIR: 1, + UNKNOWN_DIR: 2 + }, + DIR: { + OUTSIDE_EDGE: -32767, + INSIDE_EDGE: -32766 + }, + create: function create(imageWrapper, labelWrapper) { + var imageData = imageWrapper.data, + labelData = labelWrapper.data, + width = imageWrapper.size.x, + height = imageWrapper.size.y, + tracer = _tracer2["default"].create(imageWrapper, labelWrapper); + + return { + rasterize: function rasterize(depthlabel) { + var color, + bc, + lc, + labelindex, + cx, + cy, + colorMap = [], + vertex, + p, + cc, + sc, + pos, + connectedCount = 0, + i; + + for (i = 0; i < 400; i++) { + colorMap[i] = 0; + } + + colorMap[0] = imageData[0]; + cc = null; + for (cy = 1; cy < height - 1; cy++) { + labelindex = 0; + bc = colorMap[0]; + for (cx = 1; cx < width - 1; cx++) { + pos = cy * width + cx; + if (labelData[pos] === 0) { + color = imageData[pos]; + if (color !== bc) { + if (labelindex === 0) { + lc = connectedCount + 1; + colorMap[lc] = color; + bc = color; + vertex = tracer.contourTracing(cy, cx, lc, color, Rasterizer.DIR.OUTSIDE_EDGE); + if (vertex !== null) { + connectedCount++; + labelindex = lc; + p = Rasterizer.createContour2D(); + p.dir = Rasterizer.CONTOUR_DIR.CW_DIR; + p.index = labelindex; + p.firstVertex = vertex; + p.nextpeer = cc; + p.insideContours = null; + if (cc !== null) { + cc.prevpeer = p; + } + cc = p; + } + } else { + vertex = tracer.contourTracing(cy, cx, Rasterizer.DIR.INSIDE_EDGE, color, labelindex); + if (vertex !== null) { + p = Rasterizer.createContour2D(); + p.firstVertex = vertex; + p.insideContours = null; + if (depthlabel === 0) { + p.dir = Rasterizer.CONTOUR_DIR.CCW_DIR; + } else { + p.dir = Rasterizer.CONTOUR_DIR.CW_DIR; + } + p.index = depthlabel; + sc = cc; + while (sc !== null && sc.index !== labelindex) { + sc = sc.nextpeer; + } + if (sc !== null) { + p.nextpeer = sc.insideContours; + if (sc.insideContours !== null) { + sc.insideContours.prevpeer = p; + } + sc.insideContours = p; + } + } + } + } else { + labelData[pos] = labelindex; + } + } else if (labelData[pos] === Rasterizer.DIR.OUTSIDE_EDGE || labelData[pos] === Rasterizer.DIR.INSIDE_EDGE) { + labelindex = 0; + if (labelData[pos] === Rasterizer.DIR.INSIDE_EDGE) { + bc = imageData[pos]; + } else { + bc = colorMap[0]; + } + } else { + labelindex = labelData[pos]; + bc = colorMap[labelindex]; + } + } + } + sc = cc; + while (sc !== null) { + sc.index = depthlabel; + sc = sc.nextpeer; + } + return { + cc: cc, + count: connectedCount + }; + }, + debug: { + drawContour: function drawContour(canvas, firstContour) { + var ctx = canvas.getContext("2d"), + pq = firstContour, + iq, + q, + p; + + ctx.strokeStyle = "red"; + ctx.fillStyle = "red"; + ctx.lineWidth = 1; + + if (pq !== null) { + iq = pq.insideContours; + } else { + iq = null; + } + + while (pq !== null) { + if (iq !== null) { + q = iq; + iq = iq.nextpeer; + } else { + q = pq; + pq = pq.nextpeer; + if (pq !== null) { + iq = pq.insideContours; + } else { + iq = null; + } + } + + switch (q.dir) { + case Rasterizer.CONTOUR_DIR.CW_DIR: + ctx.strokeStyle = "red"; + break; + case Rasterizer.CONTOUR_DIR.CCW_DIR: + ctx.strokeStyle = "blue"; + break; + case Rasterizer.CONTOUR_DIR.UNKNOWN_DIR: + ctx.strokeStyle = "green"; + break; + } + + p = q.firstVertex; + ctx.beginPath(); + ctx.moveTo(p.x, p.y); + do { + p = p.next; + ctx.lineTo(p.x, p.y); + } while (p !== q.firstVertex); + ctx.stroke(); + } + } + } + }; + } + }; + + exports["default"] = Rasterizer; + module.exports = exports["default"]; + +/***/ }, +/* 22 */ +/***/ function(module, exports) { + + /** + * http://www.codeproject.com/Tips/407172/Connected-Component-Labeling-and-Vectorization + */ + "use strict"; + + Object.defineProperty(exports, "__esModule", { + value: true + }); + var Tracer = { + searchDirections: [[0, 1], [1, 1], [1, 0], [1, -1], [0, -1], [-1, -1], [-1, 0], [-1, 1]], + create: function create(imageWrapper, labelWrapper) { + var imageData = imageWrapper.data, + labelData = labelWrapper.data, + searchDirections = this.searchDirections, + width = imageWrapper.size.x, + pos; + + function _trace(current, color, label, edgelabel) { + var i, y, x; + + for (i = 0; i < 7; i++) { + y = current.cy + searchDirections[current.dir][0]; + x = current.cx + searchDirections[current.dir][1]; + pos = y * width + x; + if (imageData[pos] === color && (labelData[pos] === 0 || labelData[pos] === label)) { + labelData[pos] = label; + current.cy = y; + current.cx = x; + return true; + } else { + if (labelData[pos] === 0) { + labelData[pos] = edgelabel; + } + current.dir = (current.dir + 1) % 8; + } + } + return false; + } + + function vertex2D(x, y, dir) { + return { + dir: dir, + x: x, + y: y, + next: null, + prev: null + }; + } + + function _contourTracing(sy, sx, label, color, edgelabel) { + var Fv = null, + Cv, + P, + ldir, + current = { + cx: sx, + cy: sy, + dir: 0 + }; + + if (_trace(current, color, label, edgelabel)) { + Fv = vertex2D(sx, sy, current.dir); + Cv = Fv; + ldir = current.dir; + P = vertex2D(current.cx, current.cy, 0); + P.prev = Cv; + Cv.next = P; + P.next = null; + Cv = P; + do { + current.dir = (current.dir + 6) % 8; + _trace(current, color, label, edgelabel); + if (ldir != current.dir) { + Cv.dir = current.dir; + P = vertex2D(current.cx, current.cy, 0); + P.prev = Cv; + Cv.next = P; + P.next = null; + Cv = P; + } else { + Cv.dir = ldir; + Cv.x = current.cx; + Cv.y = current.cy; + } + ldir = current.dir; + } while (current.cx != sx || current.cy != sy); + Fv.prev = Cv.prev; + Cv.prev.next = Fv; + } + return Fv; + } + + return { + trace: function trace(current, color, label, edgelabel) { + return _trace(current, color, label, edgelabel); + }, + contourTracing: function contourTracing(sy, sx, label, color, edgelabel) { + return _contourTracing(sy, sx, label, color, edgelabel); + } + }; + } + }; + + exports["default"] = Tracer; + module.exports = exports["default"]; + +/***/ }, +/* 23 */ +/***/ function(module, exports) { + + /* @preserve ASM BEGIN */ + "use strict"; + + Object.defineProperty(exports, "__esModule", { + value: true + }); + function Skeletonizer(stdlib, foreign, buffer) { + "use asm"; + + var images = new stdlib.Uint8Array(buffer), + size = foreign.size | 0, + imul = stdlib.Math.imul; + + function erode(inImagePtr, outImagePtr) { + inImagePtr = inImagePtr | 0; + outImagePtr = outImagePtr | 0; + + var v = 0, + u = 0, + sum = 0, + yStart1 = 0, + yStart2 = 0, + xStart1 = 0, + xStart2 = 0, + offset = 0; + + for (v = 1; (v | 0) < (size - 1 | 0); v = v + 1 | 0) { + offset = offset + size | 0; + for (u = 1; (u | 0) < (size - 1 | 0); u = u + 1 | 0) { + yStart1 = offset - size | 0; + yStart2 = offset + size | 0; + xStart1 = u - 1 | 0; + xStart2 = u + 1 | 0; + sum = (images[inImagePtr + yStart1 + xStart1 | 0] | 0) + (images[inImagePtr + yStart1 + xStart2 | 0] | 0) + (images[inImagePtr + offset + u | 0] | 0) + (images[inImagePtr + yStart2 + xStart1 | 0] | 0) + (images[inImagePtr + yStart2 + xStart2 | 0] | 0) | 0; + if ((sum | 0) == (5 | 0)) { + images[outImagePtr + offset + u | 0] = 1; + } else { + images[outImagePtr + offset + u | 0] = 0; + } + } + } + return; + } + + function subtract(aImagePtr, bImagePtr, outImagePtr) { + aImagePtr = aImagePtr | 0; + bImagePtr = bImagePtr | 0; + outImagePtr = outImagePtr | 0; + + var length = 0; + + length = imul(size, size) | 0; + + while ((length | 0) > 0) { + length = length - 1 | 0; + images[outImagePtr + length | 0] = (images[aImagePtr + length | 0] | 0) - (images[bImagePtr + length | 0] | 0) | 0; + } + } + + function bitwiseOr(aImagePtr, bImagePtr, outImagePtr) { + aImagePtr = aImagePtr | 0; + bImagePtr = bImagePtr | 0; + outImagePtr = outImagePtr | 0; + + var length = 0; + + length = imul(size, size) | 0; + + while ((length | 0) > 0) { + length = length - 1 | 0; + images[outImagePtr + length | 0] = images[aImagePtr + length | 0] | 0 | (images[bImagePtr + length | 0] | 0) | 0; + } + } + + function countNonZero(imagePtr) { + imagePtr = imagePtr | 0; + + var sum = 0, + length = 0; + + length = imul(size, size) | 0; + + while ((length | 0) > 0) { + length = length - 1 | 0; + sum = (sum | 0) + (images[imagePtr + length | 0] | 0) | 0; + } + + return sum | 0; + } + + function init(imagePtr, value) { + imagePtr = imagePtr | 0; + value = value | 0; + + var length = 0; + + length = imul(size, size) | 0; + + while ((length | 0) > 0) { + length = length - 1 | 0; + images[imagePtr + length | 0] = value; + } + } + + function dilate(inImagePtr, outImagePtr) { + inImagePtr = inImagePtr | 0; + outImagePtr = outImagePtr | 0; + + var v = 0, + u = 0, + sum = 0, + yStart1 = 0, + yStart2 = 0, + xStart1 = 0, + xStart2 = 0, + offset = 0; + + for (v = 1; (v | 0) < (size - 1 | 0); v = v + 1 | 0) { + offset = offset + size | 0; + for (u = 1; (u | 0) < (size - 1 | 0); u = u + 1 | 0) { + yStart1 = offset - size | 0; + yStart2 = offset + size | 0; + xStart1 = u - 1 | 0; + xStart2 = u + 1 | 0; + sum = (images[inImagePtr + yStart1 + xStart1 | 0] | 0) + (images[inImagePtr + yStart1 + xStart2 | 0] | 0) + (images[inImagePtr + offset + u | 0] | 0) + (images[inImagePtr + yStart2 + xStart1 | 0] | 0) + (images[inImagePtr + yStart2 + xStart2 | 0] | 0) | 0; + if ((sum | 0) > (0 | 0)) { + images[outImagePtr + offset + u | 0] = 1; + } else { + images[outImagePtr + offset + u | 0] = 0; + } + } + } + return; + } + + function memcpy(srcImagePtr, dstImagePtr) { + srcImagePtr = srcImagePtr | 0; + dstImagePtr = dstImagePtr | 0; + + var length = 0; + + length = imul(size, size) | 0; + + while ((length | 0) > 0) { + length = length - 1 | 0; + images[dstImagePtr + length | 0] = images[srcImagePtr + length | 0] | 0; + } + } + + function zeroBorder(imagePtr) { + imagePtr = imagePtr | 0; + + var x = 0, + y = 0; + + for (x = 0; (x | 0) < (size - 1 | 0); x = x + 1 | 0) { + images[imagePtr + x | 0] = 0; + images[imagePtr + y | 0] = 0; + y = y + size - 1 | 0; + images[imagePtr + y | 0] = 0; + y = y + 1 | 0; + } + for (x = 0; (x | 0) < (size | 0); x = x + 1 | 0) { + images[imagePtr + y | 0] = 0; + y = y + 1 | 0; + } + } + + function skeletonize() { + var subImagePtr = 0, + erodedImagePtr = 0, + tempImagePtr = 0, + skelImagePtr = 0, + sum = 0, + done = 0; + + erodedImagePtr = imul(size, size) | 0; + tempImagePtr = erodedImagePtr + erodedImagePtr | 0; + skelImagePtr = tempImagePtr + erodedImagePtr | 0; + + // init skel-image + init(skelImagePtr, 0); + zeroBorder(subImagePtr); + + do { + erode(subImagePtr, erodedImagePtr); + dilate(erodedImagePtr, tempImagePtr); + subtract(subImagePtr, tempImagePtr, tempImagePtr); + bitwiseOr(skelImagePtr, tempImagePtr, skelImagePtr); + memcpy(erodedImagePtr, subImagePtr); + sum = countNonZero(subImagePtr) | 0; + done = (sum | 0) == 0 | 0; + } while (!done); + } + + return { + skeletonize: skeletonize + }; + } + /* @preserve ASM END */ + + exports["default"] = Skeletonizer; + module.exports = exports["default"]; + +/***/ }, +/* 24 */ +/***/ function(module, exports) { + + "use strict"; + + Object.defineProperty(exports, "__esModule", { + value: true + }); + exports["default"] = { + drawRect: function drawRect(pos, size, ctx, style) { + ctx.strokeStyle = style.color; + ctx.fillStyle = style.color; + ctx.lineWidth = 1; + ctx.beginPath(); + ctx.strokeRect(pos.x, pos.y, size.x, size.y); + }, + drawPath: function drawPath(path, def, ctx, style) { + ctx.strokeStyle = style.color; + ctx.fillStyle = style.color; + ctx.lineWidth = style.lineWidth; + ctx.beginPath(); + ctx.moveTo(path[0][def.x], path[0][def.y]); + for (var j = 1; j < path.length; j++) { + ctx.lineTo(path[j][def.x], path[j][def.y]); + } + ctx.closePath(); + ctx.stroke(); + }, + drawImage: function drawImage(imageData, size, ctx) { + var canvasData = ctx.getImageData(0, 0, size.x, size.y), + data = canvasData.data, + imageDataPos = imageData.length, + canvasDataPos = data.length, + value; + + if (canvasDataPos / imageDataPos !== 4) { + return false; + } + while (imageDataPos--) { + value = imageData[imageDataPos]; + data[--canvasDataPos] = 255; + data[--canvasDataPos] = value; + data[--canvasDataPos] = value; + data[--canvasDataPos] = value; + } + ctx.putImageData(canvasData, 0, 0); + return true; + } + }; + module.exports = exports["default"]; + +/***/ }, +/* 25 */ +/***/ function(module, exports, __webpack_require__) { + + 'use strict'; + + Object.defineProperty(exports, '__esModule', { + value: true + }); + + function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; } + + var _bresenham = __webpack_require__(26); + + var _bresenham2 = _interopRequireDefault(_bresenham); + + var _image_debug = __webpack_require__(24); + + var _image_debug2 = _interopRequireDefault(_image_debug); + + var _code_128_reader = __webpack_require__(27); + + var _code_128_reader2 = _interopRequireDefault(_code_128_reader); + + var _ean_reader = __webpack_require__(29); + + var _ean_reader2 = _interopRequireDefault(_ean_reader); + + var _code_39_reader = __webpack_require__(30); + + var _code_39_reader2 = _interopRequireDefault(_code_39_reader); + + var _code_39_vin_reader = __webpack_require__(31); + + var _code_39_vin_reader2 = _interopRequireDefault(_code_39_vin_reader); + + var _codabar_reader = __webpack_require__(32); + + var _codabar_reader2 = _interopRequireDefault(_codabar_reader); + + var _upc_reader = __webpack_require__(33); + + var _upc_reader2 = _interopRequireDefault(_upc_reader); + + var _ean_8_reader = __webpack_require__(34); + + var _ean_8_reader2 = _interopRequireDefault(_ean_8_reader); + + var _upc_e_reader = __webpack_require__(35); + + var _upc_e_reader2 = _interopRequireDefault(_upc_e_reader); + + var _i2of5_reader = __webpack_require__(36); + + var _i2of5_reader2 = _interopRequireDefault(_i2of5_reader); + + var readers = { + code_128_reader: _code_128_reader2['default'], + ean_reader: _ean_reader2['default'], + ean_8_reader: _ean_8_reader2['default'], + code_39_reader: _code_39_reader2['default'], + code_39_vin_reader: _code_39_vin_reader2['default'], + codabar_reader: _codabar_reader2['default'], + upc_reader: _upc_reader2['default'], + upc_e_reader: _upc_e_reader2['default'], + i2of5_reader: _i2of5_reader2['default'] + }; + exports['default'] = { + create: function create(config, inputImageWrapper) { + var _canvas = { + ctx: { + frequency: null, + pattern: null, + overlay: null + }, + dom: { + frequency: null, + pattern: null, + overlay: null + } + }, + _barcodeReaders = []; + + initCanvas(); + initReaders(); + initConfig(); + + function initCanvas() { + if (typeof document !== 'undefined') { + var $debug = document.querySelector("#debug.detection"); + _canvas.dom.frequency = document.querySelector("canvas.frequency"); + if (!_canvas.dom.frequency) { + _canvas.dom.frequency = document.createElement("canvas"); + _canvas.dom.frequency.className = "frequency"; + if ($debug) { + $debug.appendChild(_canvas.dom.frequency); + } + } + _canvas.ctx.frequency = _canvas.dom.frequency.getContext("2d"); + + _canvas.dom.pattern = document.querySelector("canvas.patternBuffer"); + if (!_canvas.dom.pattern) { + _canvas.dom.pattern = document.createElement("canvas"); + _canvas.dom.pattern.className = "patternBuffer"; + if ($debug) { + $debug.appendChild(_canvas.dom.pattern); + } + } + _canvas.ctx.pattern = _canvas.dom.pattern.getContext("2d"); + + _canvas.dom.overlay = document.querySelector("canvas.drawingBuffer"); + if (_canvas.dom.overlay) { + _canvas.ctx.overlay = _canvas.dom.overlay.getContext("2d"); + } + } + } + + function initReaders() { + config.readers.forEach(function (readerConfig) { + var reader, + config = {}; + + if (typeof readerConfig === 'object') { + reader = readerConfig.format; + config = readerConfig.config; + } else if (typeof readerConfig === 'string') { + reader = readerConfig; + } + _barcodeReaders.push(new readers[reader](config)); + }); + console.log("Registered Readers: " + _barcodeReaders.map(function (reader) { + return JSON.stringify({ format: reader.FORMAT, config: reader.config }); + }).join(', ')); + } + + function initConfig() { + if (typeof document !== 'undefined') { + var i, + vis = [{ + node: _canvas.dom.frequency, + prop: config.showFrequency + }, { + node: _canvas.dom.pattern, + prop: config.showPattern + }]; + + for (i = 0; i < vis.length; i++) { + if (vis[i].prop === true) { + vis[i].node.style.display = "block"; + } else { + vis[i].node.style.display = "none"; + } + } + } + } + + /** + * extend the line on both ends + * @param {Array} line + * @param {Number} angle + */ + function getExtendedLine(line, angle, ext) { + function extendLine(amount) { + var extension = { + y: amount * Math.sin(angle), + x: amount * Math.cos(angle) + }; + + line[0].y -= extension.y; + line[0].x -= extension.x; + line[1].y += extension.y; + line[1].x += extension.x; + } + + // check if inside image + extendLine(ext); + while (ext > 1 && (!inputImageWrapper.inImageWithBorder(line[0], 0) || !inputImageWrapper.inImageWithBorder(line[1], 0))) { + ext -= Math.ceil(ext / 2); + extendLine(-ext); + } + return line; + } + + function getLine(box) { + return [{ + x: (box[1][0] - box[0][0]) / 2 + box[0][0], + y: (box[1][1] - box[0][1]) / 2 + box[0][1] + }, { + x: (box[3][0] - box[2][0]) / 2 + box[2][0], + y: (box[3][1] - box[2][1]) / 2 + box[2][1] + }]; + } + + function tryDecode(line) { + var result = null, + i, + barcodeLine = _bresenham2['default'].getBarcodeLine(inputImageWrapper, line[0], line[1]); + + if (config.showFrequency) { + _image_debug2['default'].drawPath(line, { x: 'x', y: 'y' }, _canvas.ctx.overlay, { color: 'red', lineWidth: 3 }); + _bresenham2['default'].debug.printFrequency(barcodeLine.line, _canvas.dom.frequency); + } + _bresenham2['default'].toBinaryLine(barcodeLine); + if (config.showPattern) { + _bresenham2['default'].debug.printPattern(barcodeLine.line, _canvas.dom.pattern); + } + + for (i = 0; i < _barcodeReaders.length && result === null; i++) { + result = _barcodeReaders[i].decodePattern(barcodeLine.line); + } + if (result === null) { + return null; + } + return { + codeResult: result, + barcodeLine: barcodeLine + }; + } + + /** + * This method slices the given area apart and tries to detect a barcode-pattern + * for each slice. It returns the decoded barcode, or null if nothing was found + * @param {Array} box + * @param {Array} line + * @param {Number} lineAngle + */ + function tryDecodeBruteForce(box, line, lineAngle) { + var sideLength = Math.sqrt(Math.pow(box[1][0] - box[0][0], 2) + Math.pow(box[1][1] - box[0][1], 2)), + i, + slices = 16, + result = null, + dir, + extension, + xdir = Math.sin(lineAngle), + ydir = Math.cos(lineAngle); + + for (i = 1; i < slices && result === null; i++) { + // move line perpendicular to angle + dir = sideLength / slices * i * (i % 2 === 0 ? -1 : 1); + extension = { + y: dir * xdir, + x: dir * ydir + }; + line[0].y += extension.x; + line[0].x -= extension.y; + line[1].y += extension.x; + line[1].x -= extension.y; + + result = tryDecode(line); + } + return result; + } + + function getLineLength(line) { + return Math.sqrt(Math.pow(Math.abs(line[1].y - line[0].y), 2) + Math.pow(Math.abs(line[1].x - line[0].x), 2)); + } + + /** + * With the help of the configured readers (Code128 or EAN) this function tries to detect a + * valid barcode pattern within the given area. + * @param {Object} box The area to search in + * @returns {Object} the result {codeResult, line, angle, pattern, threshold} + */ + function _decodeFromBoundingBox(box) { + var line, + lineAngle, + ctx = _canvas.ctx.overlay, + result, + lineLength; + + if (config.drawBoundingBox && ctx) { + _image_debug2['default'].drawPath(box, { x: 0, y: 1 }, ctx, { color: "blue", lineWidth: 2 }); + } + + line = getLine(box); + lineLength = getLineLength(line); + lineAngle = Math.atan2(line[1].y - line[0].y, line[1].x - line[0].x); + line = getExtendedLine(line, lineAngle, Math.floor(lineLength * 0.1)); + if (line === null) { + return null; + } + + result = tryDecode(line); + if (result === null) { + result = tryDecodeBruteForce(box, line, lineAngle); + } + + if (result === null) { + return null; + } + + if (result && config.drawScanline && ctx) { + _image_debug2['default'].drawPath(line, { x: 'x', y: 'y' }, ctx, { color: 'red', lineWidth: 3 }); + } + + return { + codeResult: result.codeResult, + line: line, + angle: lineAngle, + pattern: result.barcodeLine.line, + threshold: result.barcodeLine.threshold + }; + } + + return { + decodeFromBoundingBox: function decodeFromBoundingBox(box) { + return _decodeFromBoundingBox(box); + }, + decodeFromBoundingBoxes: function decodeFromBoundingBoxes(boxes) { + var i, result; + for (i = 0; i < boxes.length; i++) { + result = _decodeFromBoundingBox(boxes[i]); + if (result && result.codeResult) { + result.box = boxes[i]; + return result; + } + } + }, + setReaders: function setReaders(readers) { + config.readers = readers; + _barcodeReaders.length = 0; + initReaders(); + } + }; + } + }; + module.exports = exports['default']; + +/***/ }, +/* 26 */ +/***/ function(module, exports, __webpack_require__) { + + 'use strict'; + + Object.defineProperty(exports, '__esModule', { + value: true + }); + + function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; } + + var _cv_utils = __webpack_require__(7); + + var _cv_utils2 = _interopRequireDefault(_cv_utils); + + var _image_wrapper = __webpack_require__(5); + + var _image_wrapper2 = _interopRequireDefault(_image_wrapper); + + var Bresenham = {}; + + var Slope = { + DIR: { + UP: 1, + DOWN: -1 + } + }; + /** + * Scans a line of the given image from point p1 to p2 and returns a result object containing + * gray-scale values (0-255) of the underlying pixels in addition to the min + * and max values. + * @param {Object} imageWrapper + * @param {Object} p1 The start point {x,y} + * @param {Object} p2 The end point {x,y} + * @returns {line, min, max} + */ + Bresenham.getBarcodeLine = function (imageWrapper, p1, p2) { + var x0 = p1.x | 0, + y0 = p1.y | 0, + x1 = p2.x | 0, + y1 = p2.y | 0, + steep = Math.abs(y1 - y0) > Math.abs(x1 - x0), + deltax, + deltay, + error, + ystep, + y, + tmp, + x, + line = [], + imageData = imageWrapper.data, + width = imageWrapper.size.x, + sum = 0, + val, + min = 255, + max = 0; + + function read(a, b) { + val = imageData[b * width + a]; + sum += val; + min = val < min ? val : min; + max = val > max ? val : max; + line.push(val); + } + + if (steep) { + tmp = x0; + x0 = y0; + y0 = tmp; + + tmp = x1; + x1 = y1; + y1 = tmp; + } + if (x0 > x1) { + tmp = x0; + x0 = x1; + x1 = tmp; + + tmp = y0; + y0 = y1; + y1 = tmp; + } + deltax = x1 - x0; + deltay = Math.abs(y1 - y0); + error = deltax / 2 | 0; + y = y0; + ystep = y0 < y1 ? 1 : -1; + for (x = x0; x < x1; x++) { + if (steep) { + read(y, x); + } else { + read(x, y); + } + error = error - deltay; + if (error < 0) { + y = y + ystep; + error = error + deltax; + } + } + + return { + line: line, + min: min, + max: max + }; + }; + + Bresenham.toOtsuBinaryLine = function (result) { + var line = result.line, + image = new _image_wrapper2['default']({ x: line.length - 1, y: 1 }, line), + threshold = _cv_utils2['default'].determineOtsuThreshold(image, 5); + + line = _cv_utils2['default'].sharpenLine(line); + _cv_utils2['default'].thresholdImage(image, threshold); + + return { + line: line, + threshold: threshold + }; + }; + + /** + * Converts the result from getBarcodeLine into a binary representation + * also considering the frequency and slope of the signal for more robust results + * @param {Object} result {line, min, max} + */ + Bresenham.toBinaryLine = function (result) { + + var min = result.min, + max = result.max, + line = result.line, + slope, + slope2, + center = min + (max - min) / 2, + extrema = [], + currentDir, + dir, + threshold = (max - min) / 12, + rThreshold = -threshold, + i, + j; + + // 1. find extrema + currentDir = line[0] > center ? Slope.DIR.UP : Slope.DIR.DOWN; + extrema.push({ + pos: 0, + val: line[0] + }); + for (i = 0; i < line.length - 2; i++) { + slope = line[i + 1] - line[i]; + slope2 = line[i + 2] - line[i + 1]; + if (slope + slope2 < rThreshold && line[i + 1] < center * 1.5) { + dir = Slope.DIR.DOWN; + } else if (slope + slope2 > threshold && line[i + 1] > center * 0.5) { + dir = Slope.DIR.UP; + } else { + dir = currentDir; + } + + if (currentDir !== dir) { + extrema.push({ + pos: i, + val: line[i] + }); + currentDir = dir; + } + } + extrema.push({ + pos: line.length, + val: line[line.length - 1] + }); + + for (j = extrema[0].pos; j < extrema[1].pos; j++) { + line[j] = line[j] > center ? 0 : 1; + } + + // iterate over extrema and convert to binary based on avg between minmax + for (i = 1; i < extrema.length - 1; i++) { + if (extrema[i + 1].val > extrema[i].val) { + threshold = extrema[i].val + (extrema[i + 1].val - extrema[i].val) / 3 * 2 | 0; + } else { + threshold = extrema[i + 1].val + (extrema[i].val - extrema[i + 1].val) / 3 | 0; + } + + for (j = extrema[i].pos; j < extrema[i + 1].pos; j++) { + line[j] = line[j] > threshold ? 0 : 1; + } + } + + return { + line: line, + threshold: threshold + }; + }; + + /** + * Used for development only + */ + Bresenham.debug = { + printFrequency: function printFrequency(line, canvas) { + var i, + ctx = canvas.getContext("2d"); + canvas.width = line.length; + canvas.height = 256; + + ctx.beginPath(); + ctx.strokeStyle = "blue"; + for (i = 0; i < line.length; i++) { + ctx.moveTo(i, 255); + ctx.lineTo(i, 255 - line[i]); + } + ctx.stroke(); + ctx.closePath(); + }, + + printPattern: function printPattern(line, canvas) { + var ctx = canvas.getContext("2d"), + i; + + canvas.width = line.length; + ctx.fillColor = "black"; + for (i = 0; i < line.length; i++) { + if (line[i] === 1) { + ctx.fillRect(i, 0, 1, 100); + } + } + } + }; + + exports['default'] = Bresenham; + module.exports = exports['default']; + +/***/ }, +/* 27 */ +/***/ function(module, exports, __webpack_require__) { + + "use strict"; + + Object.defineProperty(exports, "__esModule", { + value: true + }); + + function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; } + + var _barcode_reader = __webpack_require__(28); + + var _barcode_reader2 = _interopRequireDefault(_barcode_reader); + + function Code128Reader() { + _barcode_reader2["default"].call(this); + } + + var properties = { + CODE_SHIFT: { value: 98 }, + CODE_C: { value: 99 }, + CODE_B: { value: 100 }, + CODE_A: { value: 101 }, + START_CODE_A: { value: 103 }, + START_CODE_B: { value: 104 }, + START_CODE_C: { value: 105 }, + STOP_CODE: { value: 106 }, + MODULO: { value: 11 }, + CODE_PATTERN: { value: [[2, 1, 2, 2, 2, 2], [2, 2, 2, 1, 2, 2], [2, 2, 2, 2, 2, 1], [1, 2, 1, 2, 2, 3], [1, 2, 1, 3, 2, 2], [1, 3, 1, 2, 2, 2], [1, 2, 2, 2, 1, 3], [1, 2, 2, 3, 1, 2], [1, 3, 2, 2, 1, 2], [2, 2, 1, 2, 1, 3], [2, 2, 1, 3, 1, 2], [2, 3, 1, 2, 1, 2], [1, 1, 2, 2, 3, 2], [1, 2, 2, 1, 3, 2], [1, 2, 2, 2, 3, 1], [1, 1, 3, 2, 2, 2], [1, 2, 3, 1, 2, 2], [1, 2, 3, 2, 2, 1], [2, 2, 3, 2, 1, 1], [2, 2, 1, 1, 3, 2], [2, 2, 1, 2, 3, 1], [2, 1, 3, 2, 1, 2], [2, 2, 3, 1, 1, 2], [3, 1, 2, 1, 3, 1], [3, 1, 1, 2, 2, 2], [3, 2, 1, 1, 2, 2], [3, 2, 1, 2, 2, 1], [3, 1, 2, 2, 1, 2], [3, 2, 2, 1, 1, 2], [3, 2, 2, 2, 1, 1], [2, 1, 2, 1, 2, 3], [2, 1, 2, 3, 2, 1], [2, 3, 2, 1, 2, 1], [1, 1, 1, 3, 2, 3], [1, 3, 1, 1, 2, 3], [1, 3, 1, 3, 2, 1], [1, 1, 2, 3, 1, 3], [1, 3, 2, 1, 1, 3], [1, 3, 2, 3, 1, 1], [2, 1, 1, 3, 1, 3], [2, 3, 1, 1, 1, 3], [2, 3, 1, 3, 1, 1], [1, 1, 2, 1, 3, 3], [1, 1, 2, 3, 3, 1], [1, 3, 2, 1, 3, 1], [1, 1, 3, 1, 2, 3], [1, 1, 3, 3, 2, 1], [1, 3, 3, 1, 2, 1], [3, 1, 3, 1, 2, 1], [2, 1, 1, 3, 3, 1], [2, 3, 1, 1, 3, 1], [2, 1, 3, 1, 1, 3], [2, 1, 3, 3, 1, 1], [2, 1, 3, 1, 3, 1], [3, 1, 1, 1, 2, 3], [3, 1, 1, 3, 2, 1], [3, 3, 1, 1, 2, 1], [3, 1, 2, 1, 1, 3], [3, 1, 2, 3, 1, 1], [3, 3, 2, 1, 1, 1], [3, 1, 4, 1, 1, 1], [2, 2, 1, 4, 1, 1], [4, 3, 1, 1, 1, 1], [1, 1, 1, 2, 2, 4], [1, 1, 1, 4, 2, 2], [1, 2, 1, 1, 2, 4], [1, 2, 1, 4, 2, 1], [1, 4, 1, 1, 2, 2], [1, 4, 1, 2, 2, 1], [1, 1, 2, 2, 1, 4], [1, 1, 2, 4, 1, 2], [1, 2, 2, 1, 1, 4], [1, 2, 2, 4, 1, 1], [1, 4, 2, 1, 1, 2], [1, 4, 2, 2, 1, 1], [2, 4, 1, 2, 1, 1], [2, 2, 1, 1, 1, 4], [4, 1, 3, 1, 1, 1], [2, 4, 1, 1, 1, 2], [1, 3, 4, 1, 1, 1], [1, 1, 1, 2, 4, 2], [1, 2, 1, 1, 4, 2], [1, 2, 1, 2, 4, 1], [1, 1, 4, 2, 1, 2], [1, 2, 4, 1, 1, 2], [1, 2, 4, 2, 1, 1], [4, 1, 1, 2, 1, 2], [4, 2, 1, 1, 1, 2], [4, 2, 1, 2, 1, 1], [2, 1, 2, 1, 4, 1], [2, 1, 4, 1, 2, 1], [4, 1, 2, 1, 2, 1], [1, 1, 1, 1, 4, 3], [1, 1, 1, 3, 4, 1], [1, 3, 1, 1, 4, 1], [1, 1, 4, 1, 1, 3], [1, 1, 4, 3, 1, 1], [4, 1, 1, 1, 1, 3], [4, 1, 1, 3, 1, 1], [1, 1, 3, 1, 4, 1], [1, 1, 4, 1, 3, 1], [3, 1, 1, 1, 4, 1], [4, 1, 1, 1, 3, 1], [2, 1, 1, 4, 1, 2], [2, 1, 1, 2, 1, 4], [2, 1, 1, 2, 3, 2], [2, 3, 3, 1, 1, 1, 2]] }, + SINGLE_CODE_ERROR: { value: 1 }, + AVG_CODE_ERROR: { value: 0.5 }, + FORMAT: { value: "code_128", writeable: false } + }; + + Code128Reader.prototype = Object.create(_barcode_reader2["default"].prototype, properties); + Code128Reader.prototype.constructor = Code128Reader; + + Code128Reader.prototype._decodeCode = function (start) { + var counter = [0, 0, 0, 0, 0, 0], + i, + self = this, + offset = start, + isWhite = !self._row[offset], + counterPos = 0, + bestMatch = { + error: Number.MAX_VALUE, + code: -1, + start: start, + end: start + }, + code, + error, + normalized; + + for (i = offset; i < self._row.length; i++) { + if (self._row[i] ^ isWhite) { + counter[counterPos]++; + } else { + if (counterPos === counter.length - 1) { + normalized = self._normalize(counter); + if (normalized) { + for (code = 0; code < self.CODE_PATTERN.length; code++) { + error = self._matchPattern(normalized, self.CODE_PATTERN[code]); + if (error < bestMatch.error) { + bestMatch.code = code; + bestMatch.error = error; + } + } + bestMatch.end = i; + return bestMatch; + } + } else { + counterPos++; + } + counter[counterPos] = 1; + isWhite = !isWhite; + } + } + return null; + }; + + Code128Reader.prototype._findStart = function () { + var counter = [0, 0, 0, 0, 0, 0], + i, + self = this, + offset = self._nextSet(self._row), + isWhite = false, + counterPos = 0, + bestMatch = { + error: Number.MAX_VALUE, + code: -1, + start: 0, + end: 0 + }, + code, + error, + j, + sum, + normalized; + + for (i = offset; i < self._row.length; i++) { + if (self._row[i] ^ isWhite) { + counter[counterPos]++; + } else { + if (counterPos === counter.length - 1) { + sum = 0; + for (j = 0; j < counter.length; j++) { + sum += counter[j]; + } + normalized = self._normalize(counter); + if (normalized) { + for (code = self.START_CODE_A; code <= self.START_CODE_C; code++) { + error = self._matchPattern(normalized, self.CODE_PATTERN[code]); + if (error < bestMatch.error) { + bestMatch.code = code; + bestMatch.error = error; + } + } + if (bestMatch.error < self.AVG_CODE_ERROR) { + bestMatch.start = i - sum; + bestMatch.end = i; + return bestMatch; + } + } + + for (j = 0; j < 4; j++) { + counter[j] = counter[j + 2]; + } + counter[4] = 0; + counter[5] = 0; + counterPos--; + } else { + counterPos++; + } + counter[counterPos] = 1; + isWhite = !isWhite; + } + } + return null; + }; + + Code128Reader.prototype._decode = function () { + var self = this, + startInfo = self._findStart(), + code = null, + done = false, + result = [], + multiplier = 0, + checksum = 0, + codeset, + rawResult = [], + decodedCodes = [], + shiftNext = false, + unshift, + lastCharacterWasPrintable; + + if (startInfo === null) { + return null; + } + code = { + code: startInfo.code, + start: startInfo.start, + end: startInfo.end + }; + decodedCodes.push(code); + checksum = code.code; + switch (code.code) { + case self.START_CODE_A: + codeset = self.CODE_A; + break; + case self.START_CODE_B: + codeset = self.CODE_B; + break; + case self.START_CODE_C: + codeset = self.CODE_C; + break; + default: + return null; + } + + while (!done) { + unshift = shiftNext; + shiftNext = false; + code = self._decodeCode(code.end); + if (code !== null) { + if (code.code !== self.STOP_CODE) { + rawResult.push(code.code); + multiplier++; + checksum += multiplier * code.code; + } + decodedCodes.push(code); + + switch (codeset) { + case self.CODE_A: + if (code.code < 64) { + result.push(String.fromCharCode(32 + code.code)); + } else if (code.code < 96) { + result.push(String.fromCharCode(code.code - 64)); + } else { + switch (code.code) { + case self.CODE_SHIFT: + shiftNext = true; + codeset = self.CODE_B; + break; + case self.CODE_B: + codeset = self.CODE_B; + break; + case self.CODE_C: + codeset = self.CODE_C; + break; + case self.STOP_CODE: + done = true; + break; + } + } + break; + case self.CODE_B: + if (code.code < 96) { + result.push(String.fromCharCode(32 + code.code)); + } else { + if (code.code != self.STOP_CODE) { + lastCharacterWasPrintable = false; + } + switch (code.code) { + case self.CODE_SHIFT: + shiftNext = true; + codeset = self.CODE_A; + break; + case self.CODE_A: + codeset = self.CODE_A; + break; + case self.CODE_C: + codeset = self.CODE_C; + break; + case self.STOP_CODE: + done = true; + break; + } + } + break; + case self.CODE_C: + if (code.code < 100) { + result.push(code.code < 10 ? "0" + code.code : code.code); + } + switch (code.code) { + case self.CODE_A: + codeset = self.CODE_A; + break; + case self.CODE_B: + codeset = self.CODE_B; + break; + case self.STOP_CODE: + done = true; + break; + } + break; + } + } else { + done = true; + } + if (unshift) { + codeset = codeset == self.CODE_A ? self.CODE_B : self.CODE_A; + } + } + + if (code === null) { + return null; + } + + // find end bar + code.end = self._nextUnset(self._row, code.end); + if (!self._verifyTrailingWhitespace(code)) { + return null; + } + + // checksum + // Does not work correctly yet!!! startcode - endcode? + checksum -= multiplier * rawResult[rawResult.length - 1]; + if (checksum % 103 != rawResult[rawResult.length - 1]) { + return null; + } + + if (!result.length) { + return null; + } + + // remove last code from result (checksum) + result.splice(result.length - 1, 1); + + return { + code: result.join(""), + start: startInfo.start, + end: code.end, + codeset: codeset, + startInfo: startInfo, + decodedCodes: decodedCodes, + endInfo: code + }; + }; + + _barcode_reader2["default"].prototype._verifyTrailingWhitespace = function (endInfo) { + var self = this, + trailingWhitespaceEnd; + + trailingWhitespaceEnd = endInfo.end + (endInfo.end - endInfo.start) / 2; + if (trailingWhitespaceEnd < self._row.length) { + if (self._matchRange(endInfo.end, trailingWhitespaceEnd, 0)) { + return endInfo; + } + } + return null; + }; + + exports["default"] = Code128Reader; + module.exports = exports["default"]; + +/***/ }, +/* 28 */ +/***/ function(module, exports) { + + 'use strict'; + + Object.defineProperty(exports, '__esModule', { + value: true + }); + function BarcodeReader(config) { + this._row = []; + this.config = config || {}; + return this; + } + + BarcodeReader.prototype._nextUnset = function (line, start) { + var i; + + if (start === undefined) { + start = 0; + } + for (i = start; i < line.length; i++) { + if (!line[i]) { + return i; + } + } + return line.length; + }; + + BarcodeReader.prototype._matchPattern = function (counter, code) { + var i, + error = 0, + singleError = 0, + modulo = this.MODULO, + maxSingleError = this.SINGLE_CODE_ERROR || 1; + + for (i = 0; i < counter.length; i++) { + singleError = Math.abs(code[i] - counter[i]); + if (singleError > maxSingleError) { + return Number.MAX_VALUE; + } + error += singleError; + } + return error / modulo; + }; + + BarcodeReader.prototype._nextSet = function (line, offset) { + var i; + + offset = offset || 0; + for (i = offset; i < line.length; i++) { + if (line[i]) { + return i; + } + } + return line.length; + }; + + BarcodeReader.prototype._normalize = function (counter, modulo) { + var i, + self = this, + sum = 0, + ratio, + numOnes = 0, + normalized = [], + norm = 0; + + if (!modulo) { + modulo = self.MODULO; + } + for (i = 0; i < counter.length; i++) { + if (counter[i] === 1) { + numOnes++; + } else { + sum += counter[i]; + } + } + ratio = sum / (modulo - numOnes); + if (ratio > 1.0) { + for (i = 0; i < counter.length; i++) { + norm = counter[i] === 1 ? counter[i] : counter[i] / ratio; + normalized.push(norm); + } + } else { + ratio = (sum + numOnes) / modulo; + for (i = 0; i < counter.length; i++) { + norm = counter[i] / ratio; + normalized.push(norm); + } + } + return normalized; + }; + + BarcodeReader.prototype._matchTrace = function (cmpCounter, epsilon) { + var counter = [], + i, + self = this, + offset = self._nextSet(self._row), + isWhite = !self._row[offset], + counterPos = 0, + bestMatch = { + error: Number.MAX_VALUE, + code: -1, + start: 0 + }, + error; + + if (cmpCounter) { + for (i = 0; i < cmpCounter.length; i++) { + counter.push(0); + } + for (i = offset; i < self._row.length; i++) { + if (self._row[i] ^ isWhite) { + counter[counterPos]++; + } else { + if (counterPos === counter.length - 1) { + error = self._matchPattern(counter, cmpCounter); + + if (error < epsilon) { + bestMatch.start = i - offset; + bestMatch.end = i; + bestMatch.counter = counter; + return bestMatch; + } else { + return null; + } + } else { + counterPos++; + } + counter[counterPos] = 1; + isWhite = !isWhite; + } + } + } else { + counter.push(0); + for (i = offset; i < self._row.length; i++) { + if (self._row[i] ^ isWhite) { + counter[counterPos]++; + } else { + counterPos++; + counter.push(0); + counter[counterPos] = 1; + isWhite = !isWhite; + } + } + } + + // if cmpCounter was not given + bestMatch.start = offset; + bestMatch.end = self._row.length - 1; + bestMatch.counter = counter; + return bestMatch; + }; + + BarcodeReader.prototype.decodePattern = function (pattern) { + var self = this, + result; + + self._row = pattern; + result = self._decode(); + if (result === null) { + self._row.reverse(); + result = self._decode(); + if (result) { + result.direction = BarcodeReader.DIRECTION.REVERSE; + result.start = self._row.length - result.start; + result.end = self._row.length - result.end; + } + } else { + result.direction = BarcodeReader.DIRECTION.FORWARD; + } + if (result) { + result.format = self.FORMAT; + } + return result; + }; + + BarcodeReader.prototype._matchRange = function (start, end, value) { + var i; + + start = start < 0 ? 0 : start; + for (i = start; i < end; i++) { + if (this._row[i] !== value) { + return false; + } + } + return true; + }; + + BarcodeReader.prototype._fillCounters = function (offset, end, isWhite) { + var self = this, + counterPos = 0, + i, + counters = []; + + isWhite = typeof isWhite !== 'undefined' ? isWhite : true; + offset = typeof offset !== 'undefined' ? offset : self._nextUnset(self._row); + end = end || self._row.length; + + counters[counterPos] = 0; + for (i = offset; i < end; i++) { + if (self._row[i] ^ isWhite) { + counters[counterPos]++; + } else { + counterPos++; + counters[counterPos] = 1; + isWhite = !isWhite; + } + } + return counters; + }; + + Object.defineProperty(BarcodeReader.prototype, "FORMAT", { + value: 'unknown', + writeable: false + }); + + BarcodeReader.DIRECTION = { + FORWARD: 1, + REVERSE: -1 + }; + + BarcodeReader.Exception = { + StartNotFoundException: "Start-Info was not found!", + CodeNotFoundException: "Code could not be found!", + PatternNotFoundException: "Pattern could not be found!" + }; + + BarcodeReader.CONFIG_KEYS = {}; + + exports['default'] = BarcodeReader; + module.exports = exports['default']; + +/***/ }, +/* 29 */ +/***/ function(module, exports, __webpack_require__) { + + "use strict"; + + Object.defineProperty(exports, "__esModule", { + value: true + }); + + function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; } + + var _barcode_reader = __webpack_require__(28); + + var _barcode_reader2 = _interopRequireDefault(_barcode_reader); + + function EANReader(opts) { + _barcode_reader2["default"].call(this, opts); + } + + var properties = { + CODE_L_START: { value: 0 }, + MODULO: { value: 7 }, + CODE_G_START: { value: 10 }, + START_PATTERN: { value: [1 / 3 * 7, 1 / 3 * 7, 1 / 3 * 7] }, + STOP_PATTERN: { value: [1 / 3 * 7, 1 / 3 * 7, 1 / 3 * 7] }, + MIDDLE_PATTERN: { value: [1 / 5 * 7, 1 / 5 * 7, 1 / 5 * 7, 1 / 5 * 7, 1 / 5 * 7] }, + CODE_PATTERN: { value: [[3, 2, 1, 1], [2, 2, 2, 1], [2, 1, 2, 2], [1, 4, 1, 1], [1, 1, 3, 2], [1, 2, 3, 1], [1, 1, 1, 4], [1, 3, 1, 2], [1, 2, 1, 3], [3, 1, 1, 2], [1, 1, 2, 3], [1, 2, 2, 2], [2, 2, 1, 2], [1, 1, 4, 1], [2, 3, 1, 1], [1, 3, 2, 1], [4, 1, 1, 1], [2, 1, 3, 1], [3, 1, 2, 1], [2, 1, 1, 3]] }, + CODE_FREQUENCY: { value: [0, 11, 13, 14, 19, 25, 28, 21, 22, 26] }, + SINGLE_CODE_ERROR: { value: 0.67 }, + AVG_CODE_ERROR: { value: 0.27 }, + FORMAT: { value: "ean_13", writeable: false } + }; + + EANReader.prototype = Object.create(_barcode_reader2["default"].prototype, properties); + EANReader.prototype.constructor = EANReader; + + EANReader.prototype._decodeCode = function (start, coderange) { + var counter = [0, 0, 0, 0], + i, + self = this, + offset = start, + isWhite = !self._row[offset], + counterPos = 0, + bestMatch = { + error: Number.MAX_VALUE, + code: -1, + start: start, + end: start + }, + code, + error, + normalized; + + if (!coderange) { + coderange = self.CODE_PATTERN.length; + } + + for (i = offset; i < self._row.length; i++) { + if (self._row[i] ^ isWhite) { + counter[counterPos]++; + } else { + if (counterPos === counter.length - 1) { + normalized = self._normalize(counter); + if (normalized) { + for (code = 0; code < coderange; code++) { + error = self._matchPattern(normalized, self.CODE_PATTERN[code]); + if (error < bestMatch.error) { + bestMatch.code = code; + bestMatch.error = error; + } + } + bestMatch.end = i; + if (bestMatch.error > self.AVG_CODE_ERROR) { + return null; + } + return bestMatch; + } + } else { + counterPos++; + } + counter[counterPos] = 1; + isWhite = !isWhite; + } + } + return null; + }; + + EANReader.prototype._findPattern = function (pattern, offset, isWhite, tryHarder, epsilon) { + var counter = [], + self = this, + i, + counterPos = 0, + bestMatch = { + error: Number.MAX_VALUE, + code: -1, + start: 0, + end: 0 + }, + error, + j, + sum, + normalized; + + if (!offset) { + offset = self._nextSet(self._row); + } + + if (isWhite === undefined) { + isWhite = false; + } + + if (tryHarder === undefined) { + tryHarder = true; + } + + if (epsilon === undefined) { + epsilon = self.AVG_CODE_ERROR; + } + + for (i = 0; i < pattern.length; i++) { + counter[i] = 0; + } + + for (i = offset; i < self._row.length; i++) { + if (self._row[i] ^ isWhite) { + counter[counterPos]++; + } else { + if (counterPos === counter.length - 1) { + sum = 0; + for (j = 0; j < counter.length; j++) { + sum += counter[j]; + } + normalized = self._normalize(counter); + if (normalized) { + error = self._matchPattern(normalized, pattern); + + if (error < epsilon) { + bestMatch.error = error; + bestMatch.start = i - sum; + bestMatch.end = i; + return bestMatch; + } + } + if (tryHarder) { + for (j = 0; j < counter.length - 2; j++) { + counter[j] = counter[j + 2]; + } + counter[counter.length - 2] = 0; + counter[counter.length - 1] = 0; + counterPos--; + } else { + return null; + } + } else { + counterPos++; + } + counter[counterPos] = 1; + isWhite = !isWhite; + } + } + return null; + }; + + EANReader.prototype._findStart = function () { + var self = this, + leadingWhitespaceStart, + offset = self._nextSet(self._row), + startInfo; + + while (!startInfo) { + startInfo = self._findPattern(self.START_PATTERN, offset); + if (!startInfo) { + return null; + } + leadingWhitespaceStart = startInfo.start - (startInfo.end - startInfo.start); + if (leadingWhitespaceStart >= 0) { + if (self._matchRange(leadingWhitespaceStart, startInfo.start, 0)) { + return startInfo; + } + } + offset = startInfo.end; + startInfo = null; + } + }; + + EANReader.prototype._verifyTrailingWhitespace = function (endInfo) { + var self = this, + trailingWhitespaceEnd; + + trailingWhitespaceEnd = endInfo.end + (endInfo.end - endInfo.start); + if (trailingWhitespaceEnd < self._row.length) { + if (self._matchRange(endInfo.end, trailingWhitespaceEnd, 0)) { + return endInfo; + } + } + return null; + }; + + EANReader.prototype._findEnd = function (offset, isWhite) { + var self = this, + endInfo = self._findPattern(self.STOP_PATTERN, offset, isWhite, false); + + return endInfo !== null ? self._verifyTrailingWhitespace(endInfo) : null; + }; + + EANReader.prototype._calculateFirstDigit = function (codeFrequency) { + var i, + self = this; + + for (i = 0; i < self.CODE_FREQUENCY.length; i++) { + if (codeFrequency === self.CODE_FREQUENCY[i]) { + return i; + } + } + return null; + }; + + EANReader.prototype._decodePayload = function (code, result, decodedCodes) { + var i, + self = this, + codeFrequency = 0x0, + firstDigit; + + for (i = 0; i < 6; i++) { + code = self._decodeCode(code.end); + if (!code) { + return null; + } + if (code.code >= self.CODE_G_START) { + code.code = code.code - self.CODE_G_START; + codeFrequency |= 1 << 5 - i; + } else { + codeFrequency |= 0 << 5 - i; + } + result.push(code.code); + decodedCodes.push(code); + } + + firstDigit = self._calculateFirstDigit(codeFrequency); + if (firstDigit === null) { + return null; + } + result.unshift(firstDigit); + + code = self._findPattern(self.MIDDLE_PATTERN, code.end, true, false); + if (code === null) { + return null; + } + decodedCodes.push(code); + + for (i = 0; i < 6; i++) { + code = self._decodeCode(code.end, self.CODE_G_START); + if (!code) { + return null; + } + decodedCodes.push(code); + result.push(code.code); + } + + return code; + }; + + EANReader.prototype._decode = function () { + var startInfo, + self = this, + code, + result = [], + decodedCodes = []; + + startInfo = self._findStart(); + if (!startInfo) { + return null; + } + code = { + code: startInfo.code, + start: startInfo.start, + end: startInfo.end + }; + decodedCodes.push(code); + code = self._decodePayload(code, result, decodedCodes); + if (!code) { + return null; + } + code = self._findEnd(code.end, false); + if (!code) { + return null; + } + + decodedCodes.push(code); + + // Checksum + if (!self._checksum(result)) { + return null; + } + + return { + code: result.join(""), + start: startInfo.start, + end: code.end, + codeset: "", + startInfo: startInfo, + decodedCodes: decodedCodes + }; + }; + + EANReader.prototype._checksum = function (result) { + var sum = 0, + i; + + for (i = result.length - 2; i >= 0; i -= 2) { + sum += result[i]; + } + sum *= 3; + for (i = result.length - 1; i >= 0; i -= 2) { + sum += result[i]; + } + return sum % 10 === 0; + }; + + exports["default"] = EANReader; + module.exports = exports["default"]; + +/***/ }, +/* 30 */ +/***/ function(module, exports, __webpack_require__) { + + 'use strict'; + + Object.defineProperty(exports, '__esModule', { + value: true + }); + + function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; } + + var _barcode_reader = __webpack_require__(28); + + var _barcode_reader2 = _interopRequireDefault(_barcode_reader); + + var _array_helper = __webpack_require__(19); + + var _array_helper2 = _interopRequireDefault(_array_helper); + + function Code39Reader() { + _barcode_reader2['default'].call(this); + } + + var properties = { + ALPHABETH_STRING: { value: "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ-. *$/+%" }, + ALPHABET: { value: [48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 45, 46, 32, 42, 36, 47, 43, 37] }, + CHARACTER_ENCODINGS: { value: [0x034, 0x121, 0x061, 0x160, 0x031, 0x130, 0x070, 0x025, 0x124, 0x064, 0x109, 0x049, 0x148, 0x019, 0x118, 0x058, 0x00D, 0x10C, 0x04C, 0x01C, 0x103, 0x043, 0x142, 0x013, 0x112, 0x052, 0x007, 0x106, 0x046, 0x016, 0x181, 0x0C1, 0x1C0, 0x091, 0x190, 0x0D0, 0x085, 0x184, 0x0C4, 0x094, 0x0A8, 0x0A2, 0x08A, 0x02A] }, + ASTERISK: { value: 0x094 }, + FORMAT: { value: "code_39", writeable: false } + }; + + Code39Reader.prototype = Object.create(_barcode_reader2['default'].prototype, properties); + Code39Reader.prototype.constructor = Code39Reader; + + Code39Reader.prototype._toCounters = function (start, counter) { + var self = this, + numCounters = counter.length, + end = self._row.length, + isWhite = !self._row[start], + i, + counterPos = 0; + + _array_helper2['default'].init(counter, 0); + + for (i = start; i < end; i++) { + if (self._row[i] ^ isWhite) { + counter[counterPos]++; + } else { + counterPos++; + if (counterPos === numCounters) { + break; + } else { + counter[counterPos] = 1; + isWhite = !isWhite; + } + } + } + + return counter; + }; + + Code39Reader.prototype._decode = function () { + var self = this, + counters = [0, 0, 0, 0, 0, 0, 0, 0, 0], + result = [], + start = self._findStart(), + decodedChar, + lastStart, + pattern, + nextStart; + + if (!start) { + return null; + } + nextStart = self._nextSet(self._row, start.end); + + do { + counters = self._toCounters(nextStart, counters); + pattern = self._toPattern(counters); + if (pattern < 0) { + return null; + } + decodedChar = self._patternToChar(pattern); + if (decodedChar < 0) { + return null; + } + result.push(decodedChar); + lastStart = nextStart; + nextStart += _array_helper2['default'].sum(counters); + nextStart = self._nextSet(self._row, nextStart); + } while (decodedChar !== '*'); + result.pop(); + + if (!result.length) { + return null; + } + + if (!self._verifyTrailingWhitespace(lastStart, nextStart, counters)) { + return null; + } + + return { + code: result.join(""), + start: start.start, + end: nextStart, + startInfo: start, + decodedCodes: result + }; + }; + + Code39Reader.prototype._verifyTrailingWhitespace = function (lastStart, nextStart, counters) { + var trailingWhitespaceEnd, + patternSize = _array_helper2['default'].sum(counters); + + trailingWhitespaceEnd = nextStart - lastStart - patternSize; + if (trailingWhitespaceEnd * 3 >= patternSize) { + return true; + } + return false; + }; + + Code39Reader.prototype._patternToChar = function (pattern) { + var i, + self = this; + + for (i = 0; i < self.CHARACTER_ENCODINGS.length; i++) { + if (self.CHARACTER_ENCODINGS[i] === pattern) { + return String.fromCharCode(self.ALPHABET[i]); + } + } + }; + + Code39Reader.prototype._findNextWidth = function (counters, current) { + var i, + minWidth = Number.MAX_VALUE; + + for (i = 0; i < counters.length; i++) { + if (counters[i] < minWidth && counters[i] > current) { + minWidth = counters[i]; + } + } + + return minWidth; + }; + + Code39Reader.prototype._toPattern = function (counters) { + var numCounters = counters.length, + maxNarrowWidth = 0, + numWideBars = numCounters, + wideBarWidth = 0, + self = this, + pattern, + i; + + while (numWideBars > 3) { + maxNarrowWidth = self._findNextWidth(counters, maxNarrowWidth); + numWideBars = 0; + pattern = 0; + for (i = 0; i < numCounters; i++) { + if (counters[i] > maxNarrowWidth) { + pattern |= 1 << numCounters - 1 - i; + numWideBars++; + wideBarWidth += counters[i]; + } + } + + if (numWideBars === 3) { + for (i = 0; i < numCounters && numWideBars > 0; i++) { + if (counters[i] > maxNarrowWidth) { + numWideBars--; + if (counters[i] * 2 >= wideBarWidth) { + return -1; + } + } + } + return pattern; + } + } + return -1; + }; + + Code39Reader.prototype._findStart = function () { + var self = this, + offset = self._nextSet(self._row), + patternStart = offset, + counter = [0, 0, 0, 0, 0, 0, 0, 0, 0], + counterPos = 0, + isWhite = false, + i, + j, + whiteSpaceMustStart; + + for (i = offset; i < self._row.length; i++) { + if (self._row[i] ^ isWhite) { + counter[counterPos]++; + } else { + if (counterPos === counter.length - 1) { + + // find start pattern + if (self._toPattern(counter) === self.ASTERISK) { + whiteSpaceMustStart = Math.floor(Math.max(0, patternStart - (i - patternStart) / 4)); + if (self._matchRange(whiteSpaceMustStart, patternStart, 0)) { + return { + start: patternStart, + end: i + }; + } + } + + patternStart += counter[0] + counter[1]; + for (j = 0; j < 7; j++) { + counter[j] = counter[j + 2]; + } + counter[7] = 0; + counter[8] = 0; + counterPos--; + } else { + counterPos++; + } + counter[counterPos] = 1; + isWhite = !isWhite; + } + } + return null; + }; + + exports['default'] = Code39Reader; + module.exports = exports['default']; + +/***/ }, +/* 31 */ +/***/ function(module, exports, __webpack_require__) { + + 'use strict'; + + Object.defineProperty(exports, '__esModule', { + value: true + }); + + function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; } + + var _code_39_reader = __webpack_require__(30); + + var _code_39_reader2 = _interopRequireDefault(_code_39_reader); + + function Code39VINReader() { + _code_39_reader2['default'].call(this); + } + + var patterns = { + IOQ: /[IOQ]/g, + AZ09: /[A-Z0-9]{17}/ + }; + + Code39VINReader.prototype = Object.create(_code_39_reader2['default'].prototype); + Code39VINReader.prototype.constructor = Code39VINReader; + + // Cribbed from: + // /~https://github.com/zxing/zxing/blob/master/core/src/main/java/com/google/zxing/client/result/VINResultParser.java + Code39VINReader.prototype._decode = function () { + var result = _code_39_reader2['default'].prototype._decode.apply(this); + if (!result) { + return null; + } + + var code = result.code; + + if (!code) { + return; + } + + code = code.replace(patterns.IOQ, ''); + + if (!code.match(patterns.AZ09)) { + console.log('Failed AZ09 pattern code:', code); + return null; + } + + if (!this._checkChecksum(code)) { + return null; + } + + result.code = code; + return result; + }; + + Code39VINReader.prototype._checkChecksum = function (code) { + // TODO + return !!code; + }; + + exports['default'] = Code39VINReader; + module.exports = exports['default']; + +/***/ }, +/* 32 */ +/***/ function(module, exports, __webpack_require__) { + + "use strict"; + + Object.defineProperty(exports, "__esModule", { + value: true + }); + + function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; } + + var _barcode_reader = __webpack_require__(28); + + var _barcode_reader2 = _interopRequireDefault(_barcode_reader); + + function CodabarReader() { + _barcode_reader2["default"].call(this); + this._counters = []; + } + + var properties = { + ALPHABETH_STRING: { value: "0123456789-$:/.+ABCD" }, + ALPHABET: { value: [48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 45, 36, 58, 47, 46, 43, 65, 66, 67, 68] }, + CHARACTER_ENCODINGS: { value: [0x003, 0x006, 0x009, 0x060, 0x012, 0x042, 0x021, 0x024, 0x030, 0x048, 0x00c, 0x018, 0x045, 0x051, 0x054, 0x015, 0x01A, 0x029, 0x00B, 0x00E] }, + START_END: { value: [0x01A, 0x029, 0x00B, 0x00E] }, + MIN_ENCODED_CHARS: { value: 4 }, + MAX_ACCEPTABLE: { value: 2.0 }, + PADDING: { value: 1.5 }, + FORMAT: { value: "codabar", writeable: false } + }; + + CodabarReader.prototype = Object.create(_barcode_reader2["default"].prototype, properties); + CodabarReader.prototype.constructor = CodabarReader; + + CodabarReader.prototype._decode = function () { + var self = this, + result = [], + start, + decodedChar, + pattern, + nextStart, + end; + + this._counters = self._fillCounters(); + start = self._findStart(); + if (!start) { + return null; + } + nextStart = start.startCounter; + + do { + pattern = self._toPattern(nextStart); + if (pattern < 0) { + return null; + } + decodedChar = self._patternToChar(pattern); + if (decodedChar < 0) { + return null; + } + result.push(decodedChar); + nextStart += 8; + if (result.length > 1 && self._isStartEnd(pattern)) { + break; + } + } while (nextStart < self._counters.length); + + // verify end + if (result.length - 2 < self.MIN_ENCODED_CHARS || !self._isStartEnd(pattern)) { + return null; + } + + // verify end white space + if (!self._verifyWhitespace(start.startCounter, nextStart - 8)) { + return null; + } + + if (!self._validateResult(result, start.startCounter)) { + return null; + } + + nextStart = nextStart > self._counters.length ? self._counters.length : nextStart; + end = start.start + self._sumCounters(start.startCounter, nextStart - 8); + + return { + code: result.join(""), + start: start.start, + end: end, + startInfo: start, + decodedCodes: result + }; + }; + + CodabarReader.prototype._verifyWhitespace = function (startCounter, endCounter) { + if (startCounter - 1 <= 0 || this._counters[startCounter - 1] >= this._calculatePatternLength(startCounter) / 2.0) { + if (endCounter + 8 >= this._counters.length || this._counters[endCounter + 7] >= this._calculatePatternLength(endCounter) / 2.0) { + return true; + } + } + return false; + }; + + CodabarReader.prototype._calculatePatternLength = function (offset) { + var i, + sum = 0; + + for (i = offset; i < offset + 7; i++) { + sum += this._counters[i]; + } + + return sum; + }; + + CodabarReader.prototype._thresholdResultPattern = function (result, startCounter) { + var self = this, + categorization = { + space: { + narrow: { size: 0, counts: 0, min: 0, max: Number.MAX_VALUE }, + wide: { size: 0, counts: 0, min: 0, max: Number.MAX_VALUE } + }, + bar: { + narrow: { size: 0, counts: 0, min: 0, max: Number.MAX_VALUE }, + wide: { size: 0, counts: 0, min: 0, max: Number.MAX_VALUE } + } + }, + kind, + cat, + i, + j, + pos = startCounter, + pattern; + + for (i = 0; i < result.length; i++) { + pattern = self._charToPattern(result[i]); + for (j = 6; j >= 0; j--) { + kind = (j & 1) === 2 ? categorization.bar : categorization.space; + cat = (pattern & 1) === 1 ? kind.wide : kind.narrow; + cat.size += self._counters[pos + j]; + cat.counts++; + pattern >>= 1; + } + pos += 8; + } + + ["space", "bar"].forEach(function (key) { + var kind = categorization[key]; + kind.wide.min = Math.floor((kind.narrow.size / kind.narrow.counts + kind.wide.size / kind.wide.counts) / 2); + kind.narrow.max = Math.ceil(kind.wide.min); + kind.wide.max = Math.ceil((kind.wide.size * self.MAX_ACCEPTABLE + self.PADDING) / kind.wide.counts); + }); + + return categorization; + }; + + CodabarReader.prototype._charToPattern = function (char) { + var self = this, + charCode = char.charCodeAt(0), + i; + + for (i = 0; i < self.ALPHABET.length; i++) { + if (self.ALPHABET[i] === charCode) { + return self.CHARACTER_ENCODINGS[i]; + } + } + return 0x0; + }; + + CodabarReader.prototype._validateResult = function (result, startCounter) { + var self = this, + thresholds = self._thresholdResultPattern(result, startCounter), + i, + j, + kind, + cat, + size, + pos = startCounter, + pattern; + + for (i = 0; i < result.length; i++) { + pattern = self._charToPattern(result[i]); + for (j = 6; j >= 0; j--) { + kind = (j & 1) === 0 ? thresholds.bar : thresholds.space; + cat = (pattern & 1) === 1 ? kind.wide : kind.narrow; + size = self._counters[pos + j]; + if (size < cat.min || size > cat.max) { + return false; + } + pattern >>= 1; + } + pos += 8; + } + return true; + }; + + CodabarReader.prototype._patternToChar = function (pattern) { + var i, + self = this; + + for (i = 0; i < self.CHARACTER_ENCODINGS.length; i++) { + if (self.CHARACTER_ENCODINGS[i] === pattern) { + return String.fromCharCode(self.ALPHABET[i]); + } + } + return -1; + }; + + CodabarReader.prototype._computeAlternatingThreshold = function (offset, end) { + var i, + min = Number.MAX_VALUE, + max = 0, + counter; + + for (i = offset; i < end; i += 2) { + counter = this._counters[i]; + if (counter > max) { + max = counter; + } + if (counter < min) { + min = counter; + } + } + + return (min + max) / 2.0 | 0; + }; + + CodabarReader.prototype._toPattern = function (offset) { + var numCounters = 7, + end = offset + numCounters, + barThreshold, + spaceThreshold, + bitmask = 1 << numCounters - 1, + pattern = 0, + i, + threshold; + + if (end > this._counters.length) { + return -1; + } + + barThreshold = this._computeAlternatingThreshold(offset, end); + spaceThreshold = this._computeAlternatingThreshold(offset + 1, end); + + for (i = 0; i < numCounters; i++) { + threshold = (i & 1) === 0 ? barThreshold : spaceThreshold; + if (this._counters[offset + i] > threshold) { + pattern |= bitmask; + } + bitmask >>= 1; + } + + return pattern; + }; + + CodabarReader.prototype._isStartEnd = function (pattern) { + var i; + + for (i = 0; i < this.START_END.length; i++) { + if (this.START_END[i] === pattern) { + return true; + } + } + return false; + }; + + CodabarReader.prototype._sumCounters = function (start, end) { + var i, + sum = 0; + + for (i = start; i < end; i++) { + sum += this._counters[i]; + } + return sum; + }; + + CodabarReader.prototype._findStart = function () { + var self = this, + i, + pattern, + start = self._nextUnset(self._row), + end; + + for (i = 1; i < this._counters.length; i++) { + pattern = self._toPattern(i); + if (pattern !== -1 && self._isStartEnd(pattern)) { + // TODO: Look for whitespace ahead + start += self._sumCounters(0, i); + end = start + self._sumCounters(i, i + 8); + return { + start: start, + end: end, + startCounter: i, + endCounter: i + 8 + }; + } + } + }; + + exports["default"] = CodabarReader; + module.exports = exports["default"]; + +/***/ }, +/* 33 */ +/***/ function(module, exports, __webpack_require__) { + + "use strict"; + + Object.defineProperty(exports, "__esModule", { + value: true + }); + + function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; } + + var _ean_reader = __webpack_require__(29); + + var _ean_reader2 = _interopRequireDefault(_ean_reader); + + function UPCReader() { + _ean_reader2["default"].call(this); + } + + var properties = { + FORMAT: { value: "upc_a", writeable: false } + }; + + UPCReader.prototype = Object.create(_ean_reader2["default"].prototype, properties); + UPCReader.prototype.constructor = UPCReader; + + UPCReader.prototype._decode = function () { + var result = _ean_reader2["default"].prototype._decode.call(this); + + if (result && result.code && result.code.length === 13 && result.code.charAt(0) === "0") { + + result.code = result.code.substring(1); + return result; + } + return null; + }; + + exports["default"] = _ean_reader2["default"]; + module.exports = exports["default"]; + +/***/ }, +/* 34 */ +/***/ function(module, exports, __webpack_require__) { + + "use strict"; + + Object.defineProperty(exports, "__esModule", { + value: true + }); + + function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; } + + var _ean_reader = __webpack_require__(29); + + var _ean_reader2 = _interopRequireDefault(_ean_reader); + + function EAN8Reader() { + _ean_reader2["default"].call(this); + } + + var properties = { + FORMAT: { value: "ean_8", writeable: false } + }; + + EAN8Reader.prototype = Object.create(_ean_reader2["default"].prototype, properties); + EAN8Reader.prototype.constructor = EAN8Reader; + + EAN8Reader.prototype._decodePayload = function (code, result, decodedCodes) { + var i, + self = this; + + for (i = 0; i < 4; i++) { + code = self._decodeCode(code.end, self.CODE_G_START); + if (!code) { + return null; + } + result.push(code.code); + decodedCodes.push(code); + } + + code = self._findPattern(self.MIDDLE_PATTERN, code.end, true, false); + if (code === null) { + return null; + } + decodedCodes.push(code); + + for (i = 0; i < 4; i++) { + code = self._decodeCode(code.end, self.CODE_G_START); + if (!code) { + return null; + } + decodedCodes.push(code); + result.push(code.code); + } + + return code; + }; + + exports["default"] = EAN8Reader; + module.exports = exports["default"]; + +/***/ }, +/* 35 */ +/***/ function(module, exports, __webpack_require__) { + + "use strict"; + + Object.defineProperty(exports, "__esModule", { + value: true + }); + + function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; } + + var _ean_reader = __webpack_require__(29); + + var _ean_reader2 = _interopRequireDefault(_ean_reader); + + function UPCEReader() { + _ean_reader2["default"].call(this); + } + + var properties = { + CODE_FREQUENCY: { value: [[56, 52, 50, 49, 44, 38, 35, 42, 41, 37], [7, 11, 13, 14, 19, 25, 28, 21, 22, 26]] }, + STOP_PATTERN: { value: [1 / 6 * 7, 1 / 6 * 7, 1 / 6 * 7, 1 / 6 * 7, 1 / 6 * 7, 1 / 6 * 7] }, + FORMAT: { value: "upc_e", writeable: false } + }; + + UPCEReader.prototype = Object.create(_ean_reader2["default"].prototype, properties); + UPCEReader.prototype.constructor = UPCEReader; + + UPCEReader.prototype._decodePayload = function (code, result, decodedCodes) { + var i, + self = this, + codeFrequency = 0x0; + + for (i = 0; i < 6; i++) { + code = self._decodeCode(code.end); + if (!code) { + return null; + } + if (code.code >= self.CODE_G_START) { + code.code = code.code - self.CODE_G_START; + codeFrequency |= 1 << 5 - i; + } + result.push(code.code); + decodedCodes.push(code); + } + if (!self._determineParity(codeFrequency, result)) { + return null; + } + + return code; + }; + + UPCEReader.prototype._determineParity = function (codeFrequency, result) { + var self = this, + i, + nrSystem; + + for (nrSystem = 0; nrSystem < self.CODE_FREQUENCY.length; nrSystem++) { + for (i = 0; i < self.CODE_FREQUENCY[nrSystem].length; i++) { + if (codeFrequency === self.CODE_FREQUENCY[nrSystem][i]) { + result.unshift(nrSystem); + result.push(i); + return true; + } + } + } + return false; + }; + + UPCEReader.prototype._convertToUPCA = function (result) { + var upca = [result[0]], + lastDigit = result[result.length - 2]; + + if (lastDigit <= 2) { + upca = upca.concat(result.slice(1, 3)).concat([lastDigit, 0, 0, 0, 0]).concat(result.slice(3, 6)); + } else if (lastDigit === 3) { + upca = upca.concat(result.slice(1, 4)).concat([0, 0, 0, 0, 0]).concat(result.slice(4, 6)); + } else if (lastDigit === 4) { + upca = upca.concat(result.slice(1, 5)).concat([0, 0, 0, 0, 0, result[5]]); + } else { + upca = upca.concat(result.slice(1, 6)).concat([0, 0, 0, 0, lastDigit]); + } + + upca.push(result[result.length - 1]); + return upca; + }; + + UPCEReader.prototype._checksum = function (result) { + return _ean_reader2["default"].prototype._checksum.call(this, this._convertToUPCA(result)); + }; + + UPCEReader.prototype._findEnd = function (offset, isWhite) { + isWhite = true; + return _ean_reader2["default"].prototype._findEnd.call(this, offset, isWhite); + }; + + UPCEReader.prototype._verifyTrailingWhitespace = function (endInfo) { + var self = this, + trailingWhitespaceEnd; + + trailingWhitespaceEnd = endInfo.end + (endInfo.end - endInfo.start) / 2; + if (trailingWhitespaceEnd < self._row.length) { + if (self._matchRange(endInfo.end, trailingWhitespaceEnd, 0)) { + return endInfo; + } + } + }; + + exports["default"] = UPCEReader; + module.exports = exports["default"]; + +/***/ }, +/* 36 */ +/***/ function(module, exports, __webpack_require__) { + + 'use strict'; + + Object.defineProperty(exports, '__esModule', { + value: true + }); + + function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; } + + var _barcode_reader = __webpack_require__(28); + + var _barcode_reader2 = _interopRequireDefault(_barcode_reader); + + var merge = __webpack_require__(37); + + function I2of5Reader(opts) { + opts = merge(getDefaulConfig(), opts); + _barcode_reader2['default'].call(this, opts); + this.barSpaceRatio = [1, 1]; + if (opts.normalizeBarSpaceWidth) { + this.SINGLE_CODE_ERROR = 0.38; + this.AVG_CODE_ERROR = 0.09; + } + } + + function getDefaulConfig() { + var config = {}; + + Object.keys(I2of5Reader.CONFIG_KEYS).forEach(function (key) { + config[key] = I2of5Reader.CONFIG_KEYS[key]['default']; + }); + return config; + } + + var N = 1, + W = 3, + properties = { + MODULO: { value: 10 }, + START_PATTERN: { value: [N * 2.5, N * 2.5, N * 2.5, N * 2.5] }, + STOP_PATTERN: { value: [N * 2, N * 2, W * 2] }, + CODE_PATTERN: { value: [[N, N, W, W, N], [W, N, N, N, W], [N, W, N, N, W], [W, W, N, N, N], [N, N, W, N, W], [W, N, W, N, N], [N, W, W, N, N], [N, N, N, W, W], [W, N, N, W, N], [N, W, N, W, N]] }, + SINGLE_CODE_ERROR: { value: 0.78, writable: true }, + AVG_CODE_ERROR: { value: 0.38, writable: true }, + MAX_CORRECTION_FACTOR: { value: 5 }, + FORMAT: { value: "i2of5" } + }; + + I2of5Reader.prototype = Object.create(_barcode_reader2['default'].prototype, properties); + I2of5Reader.prototype.constructor = I2of5Reader; + + I2of5Reader.prototype._matchPattern = function (counter, code) { + if (this.config.normalizeBarSpaceWidth) { + var i, + counterSum = [0, 0], + codeSum = [0, 0], + correction = [0, 0], + correctionRatio = this.MAX_CORRECTION_FACTOR, + correctionRatioInverse = 1 / correctionRatio; + + for (i = 0; i < counter.length; i++) { + counterSum[i % 2] += counter[i]; + codeSum[i % 2] += code[i]; + } + correction[0] = codeSum[0] / counterSum[0]; + correction[1] = codeSum[1] / counterSum[1]; + + correction[0] = Math.max(Math.min(correction[0], correctionRatio), correctionRatioInverse); + correction[1] = Math.max(Math.min(correction[1], correctionRatio), correctionRatioInverse); + this.barSpaceRatio = correction; + for (i = 0; i < counter.length; i++) { + counter[i] *= this.barSpaceRatio[i % 2]; + } + } + return _barcode_reader2['default'].prototype._matchPattern.call(this, counter, code); + }; + + I2of5Reader.prototype._findPattern = function (pattern, offset, isWhite, tryHarder) { + var counter = [], + self = this, + i, + counterPos = 0, + bestMatch = { + error: Number.MAX_VALUE, + code: -1, + start: 0, + end: 0 + }, + error, + j, + sum, + normalized, + epsilon = self.AVG_CODE_ERROR; + + isWhite = isWhite || false; + tryHarder = tryHarder || false; + + if (!offset) { + offset = self._nextSet(self._row); + } + + for (i = 0; i < pattern.length; i++) { + counter[i] = 0; + } + + for (i = offset; i < self._row.length; i++) { + if (self._row[i] ^ isWhite) { + counter[counterPos]++; + } else { + if (counterPos === counter.length - 1) { + sum = 0; + for (j = 0; j < counter.length; j++) { + sum += counter[j]; + } + normalized = self._normalize(counter); + if (normalized) { + error = self._matchPattern(normalized, pattern); + + if (error < epsilon) { + bestMatch.error = error; + bestMatch.start = i - sum; + bestMatch.end = i; + return bestMatch; + } + } + if (tryHarder) { + for (j = 0; j < counter.length - 2; j++) { + counter[j] = counter[j + 2]; + } + counter[counter.length - 2] = 0; + counter[counter.length - 1] = 0; + counterPos--; + } else { + return null; + } + } else { + counterPos++; + } + counter[counterPos] = 1; + isWhite = !isWhite; + } + } + return null; + }; + + I2of5Reader.prototype._findStart = function () { + var self = this, + leadingWhitespaceStart, + offset = self._nextSet(self._row), + startInfo, + narrowBarWidth = 1; + + while (!startInfo) { + startInfo = self._findPattern(self.START_PATTERN, offset, false, true); + if (!startInfo) { + return null; + } + narrowBarWidth = Math.floor((startInfo.end - startInfo.start) / 4); + leadingWhitespaceStart = startInfo.start - narrowBarWidth * 10; + if (leadingWhitespaceStart >= 0) { + if (self._matchRange(leadingWhitespaceStart, startInfo.start, 0)) { + return startInfo; + } + } + offset = startInfo.end; + startInfo = null; + } + }; + + I2of5Reader.prototype._verifyTrailingWhitespace = function (endInfo) { + var self = this, + trailingWhitespaceEnd; + + trailingWhitespaceEnd = endInfo.end + (endInfo.end - endInfo.start) / 2; + if (trailingWhitespaceEnd < self._row.length) { + if (self._matchRange(endInfo.end, trailingWhitespaceEnd, 0)) { + return endInfo; + } + } + return null; + }; + + I2of5Reader.prototype._findEnd = function () { + var self = this, + endInfo, + tmp; + + self._row.reverse(); + endInfo = self._findPattern(self.STOP_PATTERN); + self._row.reverse(); + + if (endInfo === null) { + return null; + } + + // reverse numbers + tmp = endInfo.start; + endInfo.start = self._row.length - endInfo.end; + endInfo.end = self._row.length - tmp; + + return endInfo !== null ? self._verifyTrailingWhitespace(endInfo) : null; + }; + + I2of5Reader.prototype._decodePair = function (counterPair) { + var i, + code, + codes = [], + self = this; + + for (i = 0; i < counterPair.length; i++) { + code = self._decodeCode(counterPair[i]); + if (!code) { + return null; + } + codes.push(code); + } + return codes; + }; + + I2of5Reader.prototype._decodeCode = function (counter) { + var j, + self = this, + sum = 0, + normalized, + error, + epsilon = self.AVG_CODE_ERROR, + code, + bestMatch = { + error: Number.MAX_VALUE, + code: -1, + start: 0, + end: 0 + }; + + for (j = 0; j < counter.length; j++) { + sum += counter[j]; + } + normalized = self._normalize(counter); + if (normalized) { + for (code = 0; code < self.CODE_PATTERN.length; code++) { + error = self._matchPattern(normalized, self.CODE_PATTERN[code]); + if (error < bestMatch.error) { + bestMatch.code = code; + bestMatch.error = error; + } + } + if (bestMatch.error < epsilon) { + return bestMatch; + } + } + return null; + }; + + I2of5Reader.prototype._decodePayload = function (counters, result, decodedCodes) { + var i, + self = this, + pos = 0, + counterLength = counters.length, + counterPair = [[0, 0, 0, 0, 0], [0, 0, 0, 0, 0]], + codes; + + while (pos < counterLength) { + for (i = 0; i < 5; i++) { + counterPair[0][i] = counters[pos] * this.barSpaceRatio[0]; + counterPair[1][i] = counters[pos + 1] * this.barSpaceRatio[1]; + pos += 2; + } + codes = self._decodePair(counterPair); + if (!codes) { + return null; + } + for (i = 0; i < codes.length; i++) { + result.push(codes[i].code + ""); + decodedCodes.push(codes[i]); + } + } + return codes; + }; + + I2of5Reader.prototype._verifyCounterLength = function (counters) { + return counters.length % 10 === 0; + }; + + I2of5Reader.prototype._decode = function () { + var startInfo, + endInfo, + self = this, + code, + result = [], + decodedCodes = [], + counters; + + startInfo = self._findStart(); + if (!startInfo) { + return null; + } + decodedCodes.push(startInfo); + + endInfo = self._findEnd(); + if (!endInfo) { + return null; + } + + counters = self._fillCounters(startInfo.end, endInfo.start, false); + if (!self._verifyCounterLength(counters)) { + return null; + } + code = self._decodePayload(counters, result, decodedCodes); + if (!code) { + return null; + } + if (result.length % 2 !== 0 || result.length < 6) { + return null; + } + + decodedCodes.push(endInfo); + return { + code: result.join(""), + start: startInfo.start, + end: endInfo.end, + startInfo: startInfo, + decodedCodes: decodedCodes + }; + }; + + I2of5Reader.CONFIG_KEYS = { + normalizeBarSpaceWidth: { + 'type': 'boolean', + 'default': false, + 'description': 'If true, the reader tries to normalize the' + 'width-difference between bars and spaces' + } + }; + + exports['default'] = I2of5Reader; + module.exports = exports['default']; + +/***/ }, +/* 37 */ +/***/ function(module, exports, __webpack_require__) { + + var baseMerge = __webpack_require__(38), + createAssigner = __webpack_require__(65); + + /** + * Recursively merges own enumerable properties of the source object(s), that + * don't resolve to `undefined` into the destination object. Subsequent sources + * overwrite property assignments of previous sources. If `customizer` is + * provided it's invoked to produce the merged values of the destination and + * source properties. If `customizer` returns `undefined` merging is handled + * by the method instead. The `customizer` is bound to `thisArg` and invoked + * with five arguments: (objectValue, sourceValue, key, object, source). + * + * @static + * @memberOf _ + * @category Object + * @param {Object} object The destination object. + * @param {...Object} [sources] The source objects. + * @param {Function} [customizer] The function to customize assigned values. + * @param {*} [thisArg] The `this` binding of `customizer`. + * @returns {Object} Returns `object`. + * @example + * + * var users = { + * 'data': [{ 'user': 'barney' }, { 'user': 'fred' }] + * }; + * + * var ages = { + * 'data': [{ 'age': 36 }, { 'age': 40 }] + * }; + * + * _.merge(users, ages); + * // => { 'data': [{ 'user': 'barney', 'age': 36 }, { 'user': 'fred', 'age': 40 }] } + * + * // using a customizer callback + * var object = { + * 'fruits': ['apple'], + * 'vegetables': ['beet'] + * }; + * + * var other = { + * 'fruits': ['banana'], + * 'vegetables': ['carrot'] + * }; + * + * _.merge(object, other, function(a, b) { + * if (_.isArray(a)) { + * return a.concat(b); + * } + * }); + * // => { 'fruits': ['apple', 'banana'], 'vegetables': ['beet', 'carrot'] } + */ + var merge = createAssigner(baseMerge); + + module.exports = merge; + + +/***/ }, +/* 38 */ +/***/ function(module, exports, __webpack_require__) { + + var arrayEach = __webpack_require__(39), + baseMergeDeep = __webpack_require__(40), + isArray = __webpack_require__(48), + isArrayLike = __webpack_require__(43), + isObject = __webpack_require__(52), + isObjectLike = __webpack_require__(47), + isTypedArray = __webpack_require__(60), + keys = __webpack_require__(63); + + /** + * The base implementation of `_.merge` without support for argument juggling, + * multiple sources, and `this` binding `customizer` functions. + * + * @private + * @param {Object} object The destination object. + * @param {Object} source The source object. + * @param {Function} [customizer] The function to customize merged values. + * @param {Array} [stackA=[]] Tracks traversed source objects. + * @param {Array} [stackB=[]] Associates values with source counterparts. + * @returns {Object} Returns `object`. + */ + function baseMerge(object, source, customizer, stackA, stackB) { + if (!isObject(object)) { + return object; + } + var isSrcArr = isArrayLike(source) && (isArray(source) || isTypedArray(source)), + props = isSrcArr ? undefined : keys(source); + + arrayEach(props || source, function(srcValue, key) { + if (props) { + key = srcValue; + srcValue = source[key]; + } + if (isObjectLike(srcValue)) { + stackA || (stackA = []); + stackB || (stackB = []); + baseMergeDeep(object, source, key, baseMerge, customizer, stackA, stackB); + } + else { + var value = object[key], + result = customizer ? customizer(value, srcValue, key, object, source) : undefined, + isCommon = result === undefined; + + if (isCommon) { + result = srcValue; + } + if ((result !== undefined || (isSrcArr && !(key in object))) && + (isCommon || (result === result ? (result !== value) : (value === value)))) { + object[key] = result; + } + } + }); + return object; + } + + module.exports = baseMerge; + + +/***/ }, +/* 39 */ +/***/ function(module, exports) { + + /** + * A specialized version of `_.forEach` for arrays without support for callback + * shorthands and `this` binding. + * + * @private + * @param {Array} array The array to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Array} Returns `array`. + */ + function arrayEach(array, iteratee) { + var index = -1, + length = array.length; + + while (++index < length) { + if (iteratee(array[index], index, array) === false) { + break; + } + } + return array; + } + + module.exports = arrayEach; + + +/***/ }, +/* 40 */ +/***/ function(module, exports, __webpack_require__) { + + var arrayCopy = __webpack_require__(41), + isArguments = __webpack_require__(42), + isArray = __webpack_require__(48), + isArrayLike = __webpack_require__(43), + isPlainObject = __webpack_require__(53), + isTypedArray = __webpack_require__(60), + toPlainObject = __webpack_require__(61); + + /** + * A specialized version of `baseMerge` for arrays and objects which performs + * deep merges and tracks traversed objects enabling objects with circular + * references to be merged. + * + * @private + * @param {Object} object The destination object. + * @param {Object} source The source object. + * @param {string} key The key of the value to merge. + * @param {Function} mergeFunc The function to merge values. + * @param {Function} [customizer] The function to customize merged values. + * @param {Array} [stackA=[]] Tracks traversed source objects. + * @param {Array} [stackB=[]] Associates values with source counterparts. + * @returns {boolean} Returns `true` if the objects are equivalent, else `false`. + */ + function baseMergeDeep(object, source, key, mergeFunc, customizer, stackA, stackB) { + var length = stackA.length, + srcValue = source[key]; + + while (length--) { + if (stackA[length] == srcValue) { + object[key] = stackB[length]; + return; + } + } + var value = object[key], + result = customizer ? customizer(value, srcValue, key, object, source) : undefined, + isCommon = result === undefined; + + if (isCommon) { + result = srcValue; + if (isArrayLike(srcValue) && (isArray(srcValue) || isTypedArray(srcValue))) { + result = isArray(value) + ? value + : (isArrayLike(value) ? arrayCopy(value) : []); + } + else if (isPlainObject(srcValue) || isArguments(srcValue)) { + result = isArguments(value) + ? toPlainObject(value) + : (isPlainObject(value) ? value : {}); + } + else { + isCommon = false; + } + } + // Add the source value to the stack of traversed objects and associate + // it with its merged value. + stackA.push(srcValue); + stackB.push(result); + + if (isCommon) { + // Recursively merge objects and arrays (susceptible to call stack limits). + object[key] = mergeFunc(result, srcValue, customizer, stackA, stackB); + } else if (result === result ? (result !== value) : (value === value)) { + object[key] = result; + } + } + + module.exports = baseMergeDeep; + + +/***/ }, +/* 41 */ +/***/ function(module, exports) { + + /** + * Copies the values of `source` to `array`. + * + * @private + * @param {Array} source The array to copy values from. + * @param {Array} [array=[]] The array to copy values to. + * @returns {Array} Returns `array`. + */ + function arrayCopy(source, array) { + var index = -1, + length = source.length; + + array || (array = Array(length)); + while (++index < length) { + array[index] = source[index]; + } + return array; + } + + module.exports = arrayCopy; + + +/***/ }, +/* 42 */ +/***/ function(module, exports, __webpack_require__) { + + var isArrayLike = __webpack_require__(43), + isObjectLike = __webpack_require__(47); + + /** Used for native method references. */ + var objectProto = Object.prototype; + + /** Used to check objects for own properties. */ + var hasOwnProperty = objectProto.hasOwnProperty; + + /** Native method references. */ + var propertyIsEnumerable = objectProto.propertyIsEnumerable; + + /** + * Checks if `value` is classified as an `arguments` object. + * + * @static + * @memberOf _ + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`. + * @example + * + * _.isArguments(function() { return arguments; }()); + * // => true + * + * _.isArguments([1, 2, 3]); + * // => false + */ + function isArguments(value) { + return isObjectLike(value) && isArrayLike(value) && + hasOwnProperty.call(value, 'callee') && !propertyIsEnumerable.call(value, 'callee'); + } + + module.exports = isArguments; + + +/***/ }, +/* 43 */ +/***/ function(module, exports, __webpack_require__) { + + var getLength = __webpack_require__(44), + isLength = __webpack_require__(46); + + /** + * Checks if `value` is array-like. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is array-like, else `false`. + */ + function isArrayLike(value) { + return value != null && isLength(getLength(value)); + } + + module.exports = isArrayLike; + + +/***/ }, +/* 44 */ +/***/ function(module, exports, __webpack_require__) { + + var baseProperty = __webpack_require__(45); + + /** + * Gets the "length" property value of `object`. + * + * **Note:** This function is used to avoid a [JIT bug](https://bugs.webkit.org/show_bug.cgi?id=142792) + * that affects Safari on at least iOS 8.1-8.3 ARM64. + * + * @private + * @param {Object} object The object to query. + * @returns {*} Returns the "length" value. + */ + var getLength = baseProperty('length'); + + module.exports = getLength; + + +/***/ }, +/* 45 */ +/***/ function(module, exports) { + + /** + * The base implementation of `_.property` without support for deep paths. + * + * @private + * @param {string} key The key of the property to get. + * @returns {Function} Returns the new function. + */ + function baseProperty(key) { + return function(object) { + return object == null ? undefined : object[key]; + }; + } + + module.exports = baseProperty; + + +/***/ }, +/* 46 */ +/***/ function(module, exports) { + + /** + * Used as the [maximum length](http://ecma-international.org/ecma-262/6.0/#sec-number.max_safe_integer) + * of an array-like value. + */ + var MAX_SAFE_INTEGER = 9007199254740991; + + /** + * Checks if `value` is a valid array-like length. + * + * **Note:** This function is based on [`ToLength`](http://ecma-international.org/ecma-262/6.0/#sec-tolength). + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a valid length, else `false`. + */ + function isLength(value) { + return typeof value == 'number' && value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER; + } + + module.exports = isLength; + + +/***/ }, +/* 47 */ +/***/ function(module, exports) { + + /** + * Checks if `value` is object-like. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is object-like, else `false`. + */ + function isObjectLike(value) { + return !!value && typeof value == 'object'; + } + + module.exports = isObjectLike; + + +/***/ }, +/* 48 */ +/***/ function(module, exports, __webpack_require__) { + + var getNative = __webpack_require__(49), + isLength = __webpack_require__(46), + isObjectLike = __webpack_require__(47); + + /** `Object#toString` result references. */ + var arrayTag = '[object Array]'; + + /** Used for native method references. */ + var objectProto = Object.prototype; + + /** + * Used to resolve the [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring) + * of values. + */ + var objToString = objectProto.toString; + + /* Native method references for those with the same name as other `lodash` methods. */ + var nativeIsArray = getNative(Array, 'isArray'); + + /** + * Checks if `value` is classified as an `Array` object. + * + * @static + * @memberOf _ + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`. + * @example + * + * _.isArray([1, 2, 3]); + * // => true + * + * _.isArray(function() { return arguments; }()); + * // => false + */ + var isArray = nativeIsArray || function(value) { + return isObjectLike(value) && isLength(value.length) && objToString.call(value) == arrayTag; + }; + + module.exports = isArray; + + +/***/ }, +/* 49 */ +/***/ function(module, exports, __webpack_require__) { + + var isNative = __webpack_require__(50); + + /** + * Gets the native function at `key` of `object`. + * + * @private + * @param {Object} object The object to query. + * @param {string} key The key of the method to get. + * @returns {*} Returns the function if it's native, else `undefined`. + */ + function getNative(object, key) { + var value = object == null ? undefined : object[key]; + return isNative(value) ? value : undefined; + } + + module.exports = getNative; + + +/***/ }, +/* 50 */ +/***/ function(module, exports, __webpack_require__) { + + var isFunction = __webpack_require__(51), + isObjectLike = __webpack_require__(47); + + /** Used to detect host constructors (Safari > 5). */ + var reIsHostCtor = /^\[object .+?Constructor\]$/; + + /** Used for native method references. */ + var objectProto = Object.prototype; + + /** Used to resolve the decompiled source of functions. */ + var fnToString = Function.prototype.toString; + + /** Used to check objects for own properties. */ + var hasOwnProperty = objectProto.hasOwnProperty; + + /** Used to detect if a method is native. */ + var reIsNative = RegExp('^' + + fnToString.call(hasOwnProperty).replace(/[\\^$.*+?()[\]{}|]/g, '\\$&') + .replace(/hasOwnProperty|(function).*?(?=\\\()| for .+?(?=\\\])/g, '$1.*?') + '$' + ); + + /** + * Checks if `value` is a native function. + * + * @static + * @memberOf _ + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a native function, else `false`. + * @example + * + * _.isNative(Array.prototype.push); + * // => true + * + * _.isNative(_); + * // => false + */ + function isNative(value) { + if (value == null) { + return false; + } + if (isFunction(value)) { + return reIsNative.test(fnToString.call(value)); + } + return isObjectLike(value) && reIsHostCtor.test(value); + } + + module.exports = isNative; + + +/***/ }, +/* 51 */ +/***/ function(module, exports, __webpack_require__) { + + var isObject = __webpack_require__(52); + + /** `Object#toString` result references. */ + var funcTag = '[object Function]'; + + /** Used for native method references. */ + var objectProto = Object.prototype; + + /** + * Used to resolve the [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring) + * of values. + */ + var objToString = objectProto.toString; + + /** + * Checks if `value` is classified as a `Function` object. + * + * @static + * @memberOf _ + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`. + * @example + * + * _.isFunction(_); + * // => true + * + * _.isFunction(/abc/); + * // => false + */ + function isFunction(value) { + // The use of `Object#toString` avoids issues with the `typeof` operator + // in older versions of Chrome and Safari which return 'function' for regexes + // and Safari 8 which returns 'object' for typed array constructors. + return isObject(value) && objToString.call(value) == funcTag; + } + + module.exports = isFunction; + + +/***/ }, +/* 52 */ +/***/ function(module, exports) { + + /** + * Checks if `value` is the [language type](https://es5.github.io/#x8) of `Object`. + * (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`) + * + * @static + * @memberOf _ + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an object, else `false`. + * @example + * + * _.isObject({}); + * // => true + * + * _.isObject([1, 2, 3]); + * // => true + * + * _.isObject(1); + * // => false + */ + function isObject(value) { + // Avoid a V8 JIT bug in Chrome 19-20. + // See https://code.google.com/p/v8/issues/detail?id=2291 for more details. + var type = typeof value; + return !!value && (type == 'object' || type == 'function'); + } + + module.exports = isObject; + + +/***/ }, +/* 53 */ +/***/ function(module, exports, __webpack_require__) { + + var baseForIn = __webpack_require__(54), + isArguments = __webpack_require__(42), + isObjectLike = __webpack_require__(47); + + /** `Object#toString` result references. */ + var objectTag = '[object Object]'; + + /** Used for native method references. */ + var objectProto = Object.prototype; + + /** Used to check objects for own properties. */ + var hasOwnProperty = objectProto.hasOwnProperty; + + /** + * Used to resolve the [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring) + * of values. + */ + var objToString = objectProto.toString; + + /** + * Checks if `value` is a plain object, that is, an object created by the + * `Object` constructor or one with a `[[Prototype]]` of `null`. + * + * **Note:** This method assumes objects created by the `Object` constructor + * have no inherited enumerable properties. + * + * @static + * @memberOf _ + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a plain object, else `false`. + * @example + * + * function Foo() { + * this.a = 1; + * } + * + * _.isPlainObject(new Foo); + * // => false + * + * _.isPlainObject([1, 2, 3]); + * // => false + * + * _.isPlainObject({ 'x': 0, 'y': 0 }); + * // => true + * + * _.isPlainObject(Object.create(null)); + * // => true + */ + function isPlainObject(value) { + var Ctor; + + // Exit early for non `Object` objects. + if (!(isObjectLike(value) && objToString.call(value) == objectTag && !isArguments(value)) || + (!hasOwnProperty.call(value, 'constructor') && (Ctor = value.constructor, typeof Ctor == 'function' && !(Ctor instanceof Ctor)))) { + return false; + } + // IE < 9 iterates inherited properties before own properties. If the first + // iterated property is an object's own property then there are no inherited + // enumerable properties. + var result; + // In most environments an object's own properties are iterated before + // its inherited properties. If the last iterated property is an object's + // own property then there are no inherited enumerable properties. + baseForIn(value, function(subValue, key) { + result = key; + }); + return result === undefined || hasOwnProperty.call(value, result); + } + + module.exports = isPlainObject; + + +/***/ }, +/* 54 */ +/***/ function(module, exports, __webpack_require__) { + + var baseFor = __webpack_require__(55), + keysIn = __webpack_require__(58); + + /** + * The base implementation of `_.forIn` without support for callback + * shorthands and `this` binding. + * + * @private + * @param {Object} object The object to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Object} Returns `object`. + */ + function baseForIn(object, iteratee) { + return baseFor(object, iteratee, keysIn); + } + + module.exports = baseForIn; + + +/***/ }, +/* 55 */ +/***/ function(module, exports, __webpack_require__) { + + var createBaseFor = __webpack_require__(56); + + /** + * The base implementation of `baseForIn` and `baseForOwn` which iterates + * over `object` properties returned by `keysFunc` invoking `iteratee` for + * each property. Iteratee functions may exit iteration early by explicitly + * returning `false`. + * + * @private + * @param {Object} object The object to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @param {Function} keysFunc The function to get the keys of `object`. + * @returns {Object} Returns `object`. + */ + var baseFor = createBaseFor(); + + module.exports = baseFor; + + +/***/ }, +/* 56 */ +/***/ function(module, exports, __webpack_require__) { + + var toObject = __webpack_require__(57); + + /** + * Creates a base function for `_.forIn` or `_.forInRight`. + * + * @private + * @param {boolean} [fromRight] Specify iterating from right to left. + * @returns {Function} Returns the new base function. + */ + function createBaseFor(fromRight) { + return function(object, iteratee, keysFunc) { + var iterable = toObject(object), + props = keysFunc(object), + length = props.length, + index = fromRight ? length : -1; + + while ((fromRight ? index-- : ++index < length)) { + var key = props[index]; + if (iteratee(iterable[key], key, iterable) === false) { + break; + } + } + return object; + }; + } + + module.exports = createBaseFor; + + +/***/ }, +/* 57 */ +/***/ function(module, exports, __webpack_require__) { + + var isObject = __webpack_require__(52); + + /** + * Converts `value` to an object if it's not one. + * + * @private + * @param {*} value The value to process. + * @returns {Object} Returns the object. + */ + function toObject(value) { + return isObject(value) ? value : Object(value); + } + + module.exports = toObject; + + +/***/ }, +/* 58 */ +/***/ function(module, exports, __webpack_require__) { + + var isArguments = __webpack_require__(42), + isArray = __webpack_require__(48), + isIndex = __webpack_require__(59), + isLength = __webpack_require__(46), + isObject = __webpack_require__(52); + + /** Used for native method references. */ + var objectProto = Object.prototype; + + /** Used to check objects for own properties. */ + var hasOwnProperty = objectProto.hasOwnProperty; + + /** + * Creates an array of the own and inherited enumerable property names of `object`. + * + * **Note:** Non-object values are coerced to objects. + * + * @static + * @memberOf _ + * @category Object + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names. + * @example + * + * function Foo() { + * this.a = 1; + * this.b = 2; + * } + * + * Foo.prototype.c = 3; + * + * _.keysIn(new Foo); + * // => ['a', 'b', 'c'] (iteration order is not guaranteed) + */ + function keysIn(object) { + if (object == null) { + return []; + } + if (!isObject(object)) { + object = Object(object); + } + var length = object.length; + length = (length && isLength(length) && + (isArray(object) || isArguments(object)) && length) || 0; + + var Ctor = object.constructor, + index = -1, + isProto = typeof Ctor == 'function' && Ctor.prototype === object, + result = Array(length), + skipIndexes = length > 0; + + while (++index < length) { + result[index] = (index + ''); + } + for (var key in object) { + if (!(skipIndexes && isIndex(key, length)) && + !(key == 'constructor' && (isProto || !hasOwnProperty.call(object, key)))) { + result.push(key); + } + } + return result; + } + + module.exports = keysIn; + + +/***/ }, +/* 59 */ +/***/ function(module, exports) { + + /** Used to detect unsigned integer values. */ + var reIsUint = /^\d+$/; + + /** + * Used as the [maximum length](http://ecma-international.org/ecma-262/6.0/#sec-number.max_safe_integer) + * of an array-like value. + */ + var MAX_SAFE_INTEGER = 9007199254740991; + + /** + * Checks if `value` is a valid array-like index. + * + * @private + * @param {*} value The value to check. + * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index. + * @returns {boolean} Returns `true` if `value` is a valid index, else `false`. + */ + function isIndex(value, length) { + value = (typeof value == 'number' || reIsUint.test(value)) ? +value : -1; + length = length == null ? MAX_SAFE_INTEGER : length; + return value > -1 && value % 1 == 0 && value < length; + } + + module.exports = isIndex; + + +/***/ }, +/* 60 */ +/***/ function(module, exports, __webpack_require__) { + + var isLength = __webpack_require__(46), + isObjectLike = __webpack_require__(47); + + /** `Object#toString` result references. */ + var argsTag = '[object Arguments]', + arrayTag = '[object Array]', + boolTag = '[object Boolean]', + dateTag = '[object Date]', + errorTag = '[object Error]', + funcTag = '[object Function]', + mapTag = '[object Map]', + numberTag = '[object Number]', + objectTag = '[object Object]', + regexpTag = '[object RegExp]', + setTag = '[object Set]', + stringTag = '[object String]', + weakMapTag = '[object WeakMap]'; + + var arrayBufferTag = '[object ArrayBuffer]', + float32Tag = '[object Float32Array]', + float64Tag = '[object Float64Array]', + int8Tag = '[object Int8Array]', + int16Tag = '[object Int16Array]', + int32Tag = '[object Int32Array]', + uint8Tag = '[object Uint8Array]', + uint8ClampedTag = '[object Uint8ClampedArray]', + uint16Tag = '[object Uint16Array]', + uint32Tag = '[object Uint32Array]'; + + /** Used to identify `toStringTag` values of typed arrays. */ + var typedArrayTags = {}; + typedArrayTags[float32Tag] = typedArrayTags[float64Tag] = + typedArrayTags[int8Tag] = typedArrayTags[int16Tag] = + typedArrayTags[int32Tag] = typedArrayTags[uint8Tag] = + typedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] = + typedArrayTags[uint32Tag] = true; + typedArrayTags[argsTag] = typedArrayTags[arrayTag] = + typedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] = + typedArrayTags[dateTag] = typedArrayTags[errorTag] = + typedArrayTags[funcTag] = typedArrayTags[mapTag] = + typedArrayTags[numberTag] = typedArrayTags[objectTag] = + typedArrayTags[regexpTag] = typedArrayTags[setTag] = + typedArrayTags[stringTag] = typedArrayTags[weakMapTag] = false; + + /** Used for native method references. */ + var objectProto = Object.prototype; + + /** + * Used to resolve the [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring) + * of values. + */ + var objToString = objectProto.toString; + + /** + * Checks if `value` is classified as a typed array. + * + * @static + * @memberOf _ + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`. + * @example + * + * _.isTypedArray(new Uint8Array); + * // => true + * + * _.isTypedArray([]); + * // => false + */ + function isTypedArray(value) { + return isObjectLike(value) && isLength(value.length) && !!typedArrayTags[objToString.call(value)]; + } + + module.exports = isTypedArray; + + +/***/ }, +/* 61 */ +/***/ function(module, exports, __webpack_require__) { + + var baseCopy = __webpack_require__(62), + keysIn = __webpack_require__(58); + + /** + * Converts `value` to a plain object flattening inherited enumerable + * properties of `value` to own properties of the plain object. + * + * @static + * @memberOf _ + * @category Lang + * @param {*} value The value to convert. + * @returns {Object} Returns the converted plain object. + * @example + * + * function Foo() { + * this.b = 2; + * } + * + * Foo.prototype.c = 3; + * + * _.assign({ 'a': 1 }, new Foo); + * // => { 'a': 1, 'b': 2 } + * + * _.assign({ 'a': 1 }, _.toPlainObject(new Foo)); + * // => { 'a': 1, 'b': 2, 'c': 3 } + */ + function toPlainObject(value) { + return baseCopy(value, keysIn(value)); + } + + module.exports = toPlainObject; + + +/***/ }, +/* 62 */ +/***/ function(module, exports) { + + /** + * Copies properties of `source` to `object`. + * + * @private + * @param {Object} source The object to copy properties from. + * @param {Array} props The property names to copy. + * @param {Object} [object={}] The object to copy properties to. + * @returns {Object} Returns `object`. + */ + function baseCopy(source, props, object) { + object || (object = {}); + + var index = -1, + length = props.length; + + while (++index < length) { + var key = props[index]; + object[key] = source[key]; + } + return object; + } + + module.exports = baseCopy; + + +/***/ }, +/* 63 */ +/***/ function(module, exports, __webpack_require__) { + + var getNative = __webpack_require__(49), + isArrayLike = __webpack_require__(43), + isObject = __webpack_require__(52), + shimKeys = __webpack_require__(64); + + /* Native method references for those with the same name as other `lodash` methods. */ + var nativeKeys = getNative(Object, 'keys'); + + /** + * Creates an array of the own enumerable property names of `object`. + * + * **Note:** Non-object values are coerced to objects. See the + * [ES spec](http://ecma-international.org/ecma-262/6.0/#sec-object.keys) + * for more details. + * + * @static + * @memberOf _ + * @category Object + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names. + * @example + * + * function Foo() { + * this.a = 1; + * this.b = 2; + * } + * + * Foo.prototype.c = 3; + * + * _.keys(new Foo); + * // => ['a', 'b'] (iteration order is not guaranteed) + * + * _.keys('hi'); + * // => ['0', '1'] + */ + var keys = !nativeKeys ? shimKeys : function(object) { + var Ctor = object == null ? undefined : object.constructor; + if ((typeof Ctor == 'function' && Ctor.prototype === object) || + (typeof object != 'function' && isArrayLike(object))) { + return shimKeys(object); + } + return isObject(object) ? nativeKeys(object) : []; + }; + + module.exports = keys; + + +/***/ }, +/* 64 */ +/***/ function(module, exports, __webpack_require__) { + + var isArguments = __webpack_require__(42), + isArray = __webpack_require__(48), + isIndex = __webpack_require__(59), + isLength = __webpack_require__(46), + keysIn = __webpack_require__(58); + + /** Used for native method references. */ + var objectProto = Object.prototype; + + /** Used to check objects for own properties. */ + var hasOwnProperty = objectProto.hasOwnProperty; + + /** + * A fallback implementation of `Object.keys` which creates an array of the + * own enumerable property names of `object`. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names. + */ + function shimKeys(object) { + var props = keysIn(object), + propsLength = props.length, + length = propsLength && object.length; + + var allowIndexes = !!length && isLength(length) && + (isArray(object) || isArguments(object)); + + var index = -1, + result = []; + + while (++index < propsLength) { + var key = props[index]; + if ((allowIndexes && isIndex(key, length)) || hasOwnProperty.call(object, key)) { + result.push(key); + } + } + return result; + } + + module.exports = shimKeys; + + +/***/ }, +/* 65 */ +/***/ function(module, exports, __webpack_require__) { + + var bindCallback = __webpack_require__(66), + isIterateeCall = __webpack_require__(68), + restParam = __webpack_require__(69); + + /** + * Creates a `_.assign`, `_.defaults`, or `_.merge` function. + * + * @private + * @param {Function} assigner The function to assign values. + * @returns {Function} Returns the new assigner function. + */ + function createAssigner(assigner) { + return restParam(function(object, sources) { + var index = -1, + length = object == null ? 0 : sources.length, + customizer = length > 2 ? sources[length - 2] : undefined, + guard = length > 2 ? sources[2] : undefined, + thisArg = length > 1 ? sources[length - 1] : undefined; + + if (typeof customizer == 'function') { + customizer = bindCallback(customizer, thisArg, 5); + length -= 2; + } else { + customizer = typeof thisArg == 'function' ? thisArg : undefined; + length -= (customizer ? 1 : 0); + } + if (guard && isIterateeCall(sources[0], sources[1], guard)) { + customizer = length < 3 ? undefined : customizer; + length = 1; + } + while (++index < length) { + var source = sources[index]; + if (source) { + assigner(object, source, customizer); + } + } + return object; + }); + } + + module.exports = createAssigner; + + +/***/ }, +/* 66 */ +/***/ function(module, exports, __webpack_require__) { + + var identity = __webpack_require__(67); + + /** + * A specialized version of `baseCallback` which only supports `this` binding + * and specifying the number of arguments to provide to `func`. + * + * @private + * @param {Function} func The function to bind. + * @param {*} thisArg The `this` binding of `func`. + * @param {number} [argCount] The number of arguments to provide to `func`. + * @returns {Function} Returns the callback. + */ + function bindCallback(func, thisArg, argCount) { + if (typeof func != 'function') { + return identity; + } + if (thisArg === undefined) { + return func; + } + switch (argCount) { + case 1: return function(value) { + return func.call(thisArg, value); + }; + case 3: return function(value, index, collection) { + return func.call(thisArg, value, index, collection); + }; + case 4: return function(accumulator, value, index, collection) { + return func.call(thisArg, accumulator, value, index, collection); + }; + case 5: return function(value, other, key, object, source) { + return func.call(thisArg, value, other, key, object, source); + }; + } + return function() { + return func.apply(thisArg, arguments); + }; + } + + module.exports = bindCallback; + + +/***/ }, +/* 67 */ +/***/ function(module, exports) { + + /** + * This method returns the first argument provided to it. + * + * @static + * @memberOf _ + * @category Utility + * @param {*} value Any value. + * @returns {*} Returns `value`. + * @example + * + * var object = { 'user': 'fred' }; + * + * _.identity(object) === object; + * // => true + */ + function identity(value) { + return value; + } + + module.exports = identity; + + +/***/ }, +/* 68 */ +/***/ function(module, exports, __webpack_require__) { + + var isArrayLike = __webpack_require__(43), + isIndex = __webpack_require__(59), + isObject = __webpack_require__(52); + + /** + * Checks if the provided arguments are from an iteratee call. + * + * @private + * @param {*} value The potential iteratee value argument. + * @param {*} index The potential iteratee index or key argument. + * @param {*} object The potential iteratee object argument. + * @returns {boolean} Returns `true` if the arguments are from an iteratee call, else `false`. + */ + function isIterateeCall(value, index, object) { + if (!isObject(object)) { + return false; + } + var type = typeof index; + if (type == 'number' + ? (isArrayLike(object) && isIndex(index, object.length)) + : (type == 'string' && index in object)) { + var other = object[index]; + return value === value ? (value === other) : (other !== other); + } + return false; + } + + module.exports = isIterateeCall; + + +/***/ }, +/* 69 */ +/***/ function(module, exports) { + + /** Used as the `TypeError` message for "Functions" methods. */ + var FUNC_ERROR_TEXT = 'Expected a function'; + + /* Native method references for those with the same name as other `lodash` methods. */ + var nativeMax = Math.max; + + /** + * Creates a function that invokes `func` with the `this` binding of the + * created function and arguments from `start` and beyond provided as an array. + * + * **Note:** This method is based on the [rest parameter](https://developer.mozilla.org/Web/JavaScript/Reference/Functions/rest_parameters). + * + * @static + * @memberOf _ + * @category Function + * @param {Function} func The function to apply a rest parameter to. + * @param {number} [start=func.length-1] The start position of the rest parameter. + * @returns {Function} Returns the new function. + * @example + * + * var say = _.restParam(function(what, names) { + * return what + ' ' + _.initial(names).join(', ') + + * (_.size(names) > 1 ? ', & ' : '') + _.last(names); + * }); + * + * say('hello', 'fred', 'barney', 'pebbles'); + * // => 'hello fred, barney, & pebbles' + */ + function restParam(func, start) { + if (typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); + } + start = nativeMax(start === undefined ? (func.length - 1) : (+start || 0), 0); + return function() { + var args = arguments, + index = -1, + length = nativeMax(args.length - start, 0), + rest = Array(length); + + while (++index < length) { + rest[index] = args[start + index]; + } + switch (start) { + case 0: return func.call(this, rest); + case 1: return func.call(this, args[0], rest); + case 2: return func.call(this, args[0], args[1], rest); + } + var otherArgs = Array(start + 1); + index = -1; + while (++index < start) { + otherArgs[index] = args[index]; + } + otherArgs[start] = rest; + return func.apply(this, otherArgs); + }; + } + + module.exports = restParam; + + +/***/ }, +/* 70 */ +/***/ function(module, exports, __webpack_require__) { + + "use strict"; + + Object.defineProperty(exports, "__esModule", { + value: true + }); + + function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; } + + var _cv_utils = __webpack_require__(7); + + var _cv_utils2 = _interopRequireDefault(_cv_utils); + + var FrameGrabber = {}; + + FrameGrabber.create = function (inputStream, canvas) { + var _that = {}, + _streamConfig = inputStream.getConfig(), + _video_size = _cv_utils2["default"].imageRef(inputStream.getRealWidth(), inputStream.getRealHeight()), + _canvasSize = inputStream.getCanvasSize(), + _size = _cv_utils2["default"].imageRef(inputStream.getWidth(), inputStream.getHeight()), + topRight = inputStream.getTopRight(), + _sx = topRight.x, + _sy = topRight.y, + _canvas, + _ctx = null, + _data = null; + + _canvas = canvas ? canvas : document.createElement("canvas"); + _canvas.width = _canvasSize.x; + _canvas.height = _canvasSize.y; + _ctx = _canvas.getContext("2d"); + _data = new Uint8Array(_size.x * _size.y); + console.log("FrameGrabber", JSON.stringify({ + size: _size, + topRight: topRight, + videoSize: _video_size, + canvasSize: _canvasSize + })); + + /** + * Uses the given array as frame-buffer + */ + _that.attachData = function (data) { + _data = data; + }; + + /** + * Returns the used frame-buffer + */ + _that.getData = function () { + return _data; + }; + + /** + * Fetches a frame from the input-stream and puts into the frame-buffer. + * The image-data is converted to gray-scale and then half-sampled if configured. + */ + _that.grab = function () { + var doHalfSample = _streamConfig.halfSample, + frame = inputStream.getFrame(), + ctxData; + if (frame) { + _ctx.drawImage(frame, 0, 0, _canvasSize.x, _canvasSize.y); + ctxData = _ctx.getImageData(_sx, _sy, _size.x, _size.y).data; + if (doHalfSample) { + _cv_utils2["default"].grayAndHalfSampleFromCanvasData(ctxData, _size, _data); + } else { + _cv_utils2["default"].computeGray(ctxData, _data, _streamConfig); + } + return true; + } else { + return false; + } + }; + + _that.getSize = function () { + return _size; + }; + + return _that; + }; + + exports["default"] = FrameGrabber; + module.exports = exports["default"]; + +/***/ }, +/* 71 */ +/***/ function(module, exports) { + + "use strict"; + + Object.defineProperty(exports, "__esModule", { + value: true + }); + exports["default"] = { + inputStream: { + name: "Live", + type: "LiveStream", + constraints: { + width: 640, + height: 480, + minAspectRatio: 0, + maxAspectRatio: 100, + facing: "environment" // or user + }, + area: { + top: "0%", + right: "0%", + left: "0%", + bottom: "0%" + }, + singleChannel: false // true: only the red color-channel is read + }, + tracking: false, + debug: false, + controls: false, + locate: true, + numOfWorkers: 4, + visual: { + show: true + }, + decoder: { + drawBoundingBox: false, + showFrequency: false, + drawScanline: false, + showPattern: false, + readers: ['code_128_reader'] + }, + locator: { + halfSample: true, + patchSize: "medium", // x-small, small, medium, large, x-large + showCanvas: false, + showPatches: false, + showFoundPatches: false, + showSkeleton: false, + showLabels: false, + showPatchLabels: false, + showRemainingPatchLabels: false, + boxFromPatches: { + showTransformed: false, + showTransformedBox: false, + showBB: false + } + } + }; + module.exports = exports["default"]; + +/***/ }, +/* 72 */ +/***/ function(module, exports) { + + "use strict"; + + Object.defineProperty(exports, "__esModule", { + value: true + }); + + exports["default"] = (function () { + var events = {}; + + function getEvent(eventName) { + if (!events[eventName]) { + events[eventName] = { + subscribers: [] + }; + } + return events[eventName]; + } + + function clearEvents() { + events = {}; + } + + function publishSubscription(subscription, data) { + if (subscription.async) { + setTimeout(function () { + subscription.callback(data); + }, 4); + } else { + subscription.callback(data); + } + } + + function _subscribe(event, callback, async) { + var subscription; + + if (typeof callback === "function") { + subscription = { + callback: callback, + async: async + }; + } else { + subscription = callback; + if (!subscription.callback) { + throw "Callback was not specified on options"; + } + } + + getEvent(event).subscribers.push(subscription); + } + + return { + subscribe: function subscribe(event, callback, async) { + return _subscribe(event, callback, async); + }, + publish: function publish(eventName, data) { + var event = getEvent(eventName), + subscribers = event.subscribers; + + event.subscribers = subscribers.filter(function (subscriber) { + publishSubscription(subscriber, data); + return !subscriber.once; + }); + }, + once: function once(event, callback, async) { + _subscribe(event, { + callback: callback, + async: async, + once: true + }); + }, + unsubscribe: function unsubscribe(eventName, callback) { + var event; + + if (eventName) { + event = getEvent(eventName); + if (event && callback) { + event.subscribers = event.subscribers.filter(function (subscriber) { + return subscriber.callback !== callback; + }); + } else { + event.subscribers = []; + } + } else { + clearEvents(); + } + } + }; + })(); + + ; + module.exports = exports["default"]; + +/***/ }, +/* 73 */ +/***/ function(module, exports, __webpack_require__) { + + 'use strict'; + + Object.defineProperty(exports, '__esModule', { + value: true + }); + var merge = __webpack_require__(37); + + var streamRef, loadedDataHandler; + + /** + * Wraps browser-specific getUserMedia + * @param {Object} constraints + * @param {Object} success Callback + * @param {Object} failure Callback + */ + function getUserMedia(constraints, success, failure) { + if (typeof navigator.getUserMedia !== 'undefined') { + navigator.getUserMedia(constraints, function (stream) { + streamRef = stream; + var videoSrc = window.URL && window.URL.createObjectURL(stream) || stream; + success.apply(null, [videoSrc]); + }, failure); + } else { + failure(new TypeError("getUserMedia not available")); + } + } + + function loadedData(video, callback) { + var attempts = 10; + + function checkVideo() { + if (attempts > 0) { + if (video.videoWidth > 0 && video.videoHeight > 0) { + console.log(video.videoWidth + "px x " + video.videoHeight + "px"); + callback(); + } else { + window.setTimeout(checkVideo, 500); + } + } else { + callback('Unable to play video stream. Is webcam working?'); + } + attempts--; + } + checkVideo(); + } + + /** + * Tries to attach the camera-stream to a given video-element + * and calls the callback function when the content is ready + * @param {Object} constraints + * @param {Object} video + * @param {Object} callback + */ + function initCamera(constraints, video, callback) { + getUserMedia(constraints, function (src) { + video.src = src; + if (loadedDataHandler) { + video.removeEventListener("loadeddata", loadedDataHandler, false); + } + loadedDataHandler = loadedData.bind(null, video, callback); + video.addEventListener('loadeddata', loadedDataHandler, false); + video.play(); + }, function (e) { + callback(e); + }); + } + + /** + * Normalizes the incoming constraints to satisfy the current browser + * @param config + * @param cb Callback which is called whenever constraints are created + * @returns {*} + */ + function normalizeConstraints(config, cb) { + var constraints = { + audio: false, + video: true + }, + videoConstraints = merge({ + width: 640, + height: 480, + minAspectRatio: 0, + maxAspectRatio: 100, + facing: "environment" + }, config); + + if (typeof MediaStreamTrack !== 'undefined' && typeof MediaStreamTrack.getSources !== 'undefined') { + MediaStreamTrack.getSources(function (sourceInfos) { + var videoSourceId; + for (var i = 0; i != sourceInfos.length; ++i) { + var sourceInfo = sourceInfos[i]; + if (sourceInfo.kind == "video" && sourceInfo.facing == videoConstraints.facing) { + videoSourceId = sourceInfo.id; + } + } + constraints.video = { + mandatory: { + minWidth: videoConstraints.width, + minHeight: videoConstraints.height, + minAspectRatio: videoConstraints.minAspectRatio, + maxAspectRatio: videoConstraints.maxAspectRatio + }, + optional: [{ + sourceId: videoSourceId + }] + }; + return cb(constraints); + }); + } else { + constraints.video = { + mediaSource: "camera", + width: { min: videoConstraints.width, max: videoConstraints.width }, + height: { min: videoConstraints.height, max: videoConstraints.height }, + require: ["width", "height"] + }; + return cb(constraints); + } + } + + /** + * Requests the back-facing camera of the user. The callback is called + * whenever the stream is ready to be consumed, or if an error occures. + * @param {Object} video + * @param {Object} callback + */ + function _request(video, videoConstraints, callback) { + normalizeConstraints(videoConstraints, function (constraints) { + initCamera(constraints, video, callback); + }); + } + + exports['default'] = { + request: function request(video, constraints, callback) { + _request(video, constraints, callback); + }, + release: function release() { + var tracks = streamRef && streamRef.getVideoTracks(); + if (tracks.length) { + tracks[0].stop(); + } + streamRef = null; + } + }; + module.exports = exports['default']; + +/***/ }, +/* 74 */ +/***/ function(module, exports, __webpack_require__) { + + 'use strict'; + + Object.defineProperty(exports, '__esModule', { + value: true + }); + + function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; } + + var _image_debug = __webpack_require__(24); + + var _image_debug2 = _interopRequireDefault(_image_debug); + + function contains(codeResult, list) { + if (list) { + return list.some(function (item) { + return Object.keys(item).every(function (key) { + return item[key] === codeResult[key]; + }); + }); + } + return false; + } + + function passesFilter(codeResult, filter) { + if (typeof filter === 'function') { + return filter(codeResult); + } + return true; + } + + exports['default'] = { + create: function create(config) { + var canvas = document.createElement("canvas"), + ctx = canvas.getContext("2d"), + results = [], + capacity = config.capacity || 20, + capture = config.capture === true; + + function matchesConstraints(codeResult) { + return capacity && codeResult && !contains(codeResult, config.blacklist) && passesFilter(codeResult, config.filter); + } + + return { + addResult: function addResult(data, imageSize, codeResult) { + var result = {}; + + if (matchesConstraints(codeResult)) { + capacity--; + result.codeResult = codeResult; + if (capture) { + canvas.width = imageSize.x; + canvas.height = imageSize.y; + _image_debug2['default'].drawImage(data, imageSize, ctx); + result.frame = canvas.toDataURL(); + } + results.push(result); + } + }, + getResults: function getResults() { + return results; + } + }; + } + }; + module.exports = exports['default']; + +/***/ } +/******/ ]) }); - -/* jshint undef: true, unused: true, browser:true, devel: true */ -/* global define */ - -define('input_stream',["image_loader"], function(ImageLoader) { - "use strict"; - - var InputStream = {}; - InputStream.createVideoStream = function(video) { - var that = {}, - _config = null, - _eventNames = ['canrecord', 'ended'], - _eventHandlers = {}, - _calculatedWidth, - _calculatedHeight, - _topRight = {x: 0, y: 0}, - _canvasSize = {x: 0, y: 0}; - - function initSize() { - var width = video.videoWidth, - height = video.videoHeight; - - _calculatedWidth = _config.size ? width/height > 1 ? _config.size : Math.floor((width/height) * _config.size) : width; - _calculatedHeight = _config.size ? width/height > 1 ? Math.floor((height/width) * _config.size) : _config.size : height; - - _canvasSize.x = _calculatedWidth; - _canvasSize.y = _calculatedHeight; - } - - that.getRealWidth = function() { - return video.videoWidth; - }; - - that.getRealHeight = function() { - return video.videoHeight; - }; - - that.getWidth = function() { - return _calculatedWidth; - }; - - that.getHeight = function() { - return _calculatedHeight; - }; - - that.setWidth = function(width) { - _calculatedWidth = width; - }; - - that.setHeight = function(height) { - _calculatedHeight = height; - }; - - that.setInputStream = function(config) { - _config = config; - video.src = (typeof config.src !== 'undefined') ? config.src : ''; - }; - - that.ended = function() { - return video.ended; - }; - - that.getConfig = function() { - return _config; - }; - - that.setAttribute = function(name, value) { - video.setAttribute(name, value); - }; - - that.pause = function() { - video.pause(); - }; - - that.play = function() { - video.play(); - }; - - that.setCurrentTime = function(time) { - if (_config.type !== "LiveStream") - video.currentTime = time; - }; - - that.addEventListener = function(event, f, bool) { - if (_eventNames.indexOf(event) !== -1) { - if (!_eventHandlers[event]) { - _eventHandlers[event] = []; - } - _eventHandlers[event].push(f); - } else { - video.addEventListener(event, f, bool); - } - }; - - that.clearEventHandlers = function() { - _eventNames.forEach(function(eventName) { - var handlers = _eventHandlers[eventName]; - if (handlers && handlers.length > 0) { - handlers.forEach(function(handler) { - video.removeEventListener(eventName, handler); - }); - } - }); - }; - - that.trigger = function(eventName, args) { - var j, - handlers = _eventHandlers[eventName]; - - if (eventName === 'canrecord') { - initSize(); - } - if (handlers && handlers.length > 0) { - for ( j = 0; j < handlers.length; j++) { - handlers[j].apply(that, args); - } - } - }; - - that.setTopRight = function(topRight) { - _topRight.x = topRight.x; - _topRight.y = topRight.y; - }; - - that.getTopRight = function() { - return _topRight; - }; - - that.setCanvasSize = function(size) { - _canvasSize.x = size.x; - _canvasSize.y = size.y; - }; - - that.getCanvasSize = function() { - return _canvasSize; - }; - - that.getFrame = function() { - return video; - }; - - return that; - }; - - InputStream.createLiveStream = function(video) { - video.setAttribute("autoplay", true); - var that = InputStream.createVideoStream(video); - - that.ended = function() { - return false; - }; - - return that; - }; - - InputStream.createImageStream = function() { - var that = {}; - var _config = null; - - var width = 0, - height = 0, - frameIdx = 0, - paused = true, - loaded = false, - imgArray = null, - size = 0, - offset = 1, - baseUrl = null, - ended = false, - calculatedWidth, - calculatedHeight, - _eventNames = ['canrecord', 'ended'], - _eventHandlers = {}, - _topRight = {x: 0, y: 0}, - _canvasSize = {x: 0, y: 0}; - - function loadImages() { - loaded = false; - ImageLoader.load(baseUrl, function(imgs) { - imgArray = imgs; - width = imgs[0].width; - height = imgs[0].height; - calculatedWidth = _config.size ? width/height > 1 ? _config.size : Math.floor((width/height) * _config.size) : width; - calculatedHeight = _config.size ? width/height > 1 ? Math.floor((height/width) * _config.size) : _config.size : height; - _canvasSize.x = calculatedWidth; - _canvasSize.y = calculatedHeight; - loaded = true; - frameIdx = 0; - setTimeout(function() { - publishEvent("canrecord", []); - }, 0); - }, offset, size, _config.sequence); - } - - function publishEvent(eventName, args) { - var j, - handlers = _eventHandlers[eventName]; - - if (handlers && handlers.length > 0) { - for ( j = 0; j < handlers.length; j++) { - handlers[j].apply(that, args); - } - } - } - - - that.trigger = publishEvent; - - that.getWidth = function() { - return calculatedWidth; - }; - - that.getHeight = function() { - return calculatedHeight; - }; - - that.setWidth = function(width) { - calculatedWidth = width; - }; - - that.setHeight = function(height) { - calculatedHeight = height; - }; - - that.getRealWidth = function() { - return width; - }; - - that.getRealHeight = function() { - return height; - }; - - that.setInputStream = function(stream) { - _config = stream; - if (stream.sequence === false) { - baseUrl = stream.src; - size = 1; - } else { - baseUrl = stream.src; - size = stream.length; - } - loadImages(); - }; - - that.ended = function() { - return ended; - }; - - that.setAttribute = function() {}; - - that.getConfig = function() { - return _config; - }; - - that.pause = function() { - paused = true; - }; - - that.play = function() { - paused = false; - }; - - that.setCurrentTime = function(time) { - frameIdx = time; - }; - - that.addEventListener = function(event, f) { - if (_eventNames.indexOf(event) !== -1) { - if (!_eventHandlers[event]) { - _eventHandlers[event] = []; - } - _eventHandlers[event].push(f); - } - }; - - that.setTopRight = function(topRight) { - _topRight.x = topRight.x; - _topRight.y = topRight.y; - }; - - that.getTopRight = function() { - return _topRight; - }; - - that.setCanvasSize = function(size) { - _canvasSize.x = size.x; - _canvasSize.y = size.y; - }; - - that.getCanvasSize = function() { - return _canvasSize; - }; - - that.getFrame = function() { - var frame; - - if (!loaded){ - return null; - } - if (!paused) { - frame = imgArray[frameIdx]; - if (frameIdx < (size - 1)) { - frameIdx++; - } else { - setTimeout(function() { - ended = true; - publishEvent("ended", []); - }, 0); - } - } - return frame; - }; - - return that; - }; - - return (InputStream); -}); - -/* - * typedefs.js - * Normalizes browser-specific prefixes - */ - -glMatrixArrayType = Float32Array; -if (typeof window !== 'undefined') { - window.requestAnimFrame = (function () { - return window.requestAnimationFrame || - window.webkitRequestAnimationFrame || - window.mozRequestAnimationFrame || - window.oRequestAnimationFrame || - window.msRequestAnimationFrame || - function (/* function FrameRequestCallback */ callback, /* DOMElement Element */ element) { - window.setTimeout(callback, 1000 / 60); - }; - })(); - - navigator.getUserMedia = navigator.getUserMedia || navigator.webkitGetUserMedia || navigator.mozGetUserMedia || navigator.msGetUserMedia; - window.URL = window.URL || window.webkitURL || window.mozURL || window.msURL; -} -Math.imul = Math.imul || function(a, b) { - var ah = (a >>> 16) & 0xffff, - al = a & 0xffff, - bh = (b >>> 16) & 0xffff, - bl = b & 0xffff; - // the shift by 0 fixes the sign on the high part - // the final |0 converts the unsigned value into a signed value - return ((al * bl) + (((ah * bl + al * bh) << 16) >>> 0)|0); -}; -define("typedefs", (function (global) { - return function () { - var ret, fn; - return ret || global.typedefs; - }; -}(this))); - -/* jshint undef: true, unused: true, browser:true, devel: true */ -/* global define */ - -define('subImage',["typedefs"], function() { - "use strict"; - - /** - * Construct representing a part of another {ImageWrapper}. 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t[0]=n[0],t[1]=n[1],t[2]=n[2],t[3]=n[4],t[4]=n[5],t[5]=n[6],t[6]=n[8],t[7]=n[9],t[8]=n[10],t},e.clone=function(t){var n=new a.ARRAY_TYPE(9);return n[0]=t[0],n[1]=t[1],n[2]=t[2],n[3]=t[3],n[4]=t[4],n[5]=t[5],n[6]=t[6],n[7]=t[7],n[8]=t[8],n},e.copy=function(t,n){return t[0]=n[0],t[1]=n[1],t[2]=n[2],t[3]=n[3],t[4]=n[4],t[5]=n[5],t[6]=n[6],t[7]=n[7],t[8]=n[8],t},e.identity=function(t){return t[0]=1,t[1]=0,t[2]=0,t[3]=0,t[4]=1,t[5]=0,t[6]=0,t[7]=0,t[8]=1,t},e.transpose=function(t,n){if(t===n){var r=n[1],a=n[2],e=n[5];t[1]=n[3],t[2]=n[6],t[3]=r,t[5]=n[7],t[6]=a,t[7]=e}else t[0]=n[0],t[1]=n[3],t[2]=n[6],t[3]=n[1],t[4]=n[4],t[5]=n[7],t[6]=n[2],t[7]=n[5],t[8]=n[8];return t},e.invert=function(t,n){var r=n[0],a=n[1],e=n[2],u=n[3],o=n[4],i=n[5],c=n[6],f=n[7],s=n[8],h=s*o-i*f,M=-s*u+i*c,l=f*u-o*c,v=r*h+a*M+e*l;return v?(v=1/v,t[0]=h*v,t[1]=(-s*a+e*f)*v,t[2]=(i*a-e*o)*v,t[3]=M*v,t[4]=(s*r-e*c)*v,t[5]=(-i*r+e*u)*v,t[6]=l*v,t[7]=(-f*r+a*c)*v,t[8]=(o*r-a*u)*v,t):null},e.adjoint=function(t,n){var r=n[0],a=n[1],e=n[2],u=n[3],o=n[4],i=n[5],c=n[6],f=n[7],s=n[8];return t[0]=o*s-i*f,t[1]=e*f-a*s,t[2]=a*i-e*o,t[3]=i*c-u*s,t[4]=r*s-e*c,t[5]=e*u-r*i,t[6]=u*f-o*c,t[7]=a*c-r*f,t[8]=r*o-a*u,t},e.determinant=function(t){var n=t[0],r=t[1],a=t[2],e=t[3],u=t[4],o=t[5],i=t[6],c=t[7],f=t[8];return n*(f*u-o*c)+r*(-f*e+o*i)+a*(c*e-u*i)},e.multiply=function(t,n,r){var a=n[0],e=n[1],u=n[2],o=n[3],i=n[4],c=n[5],f=n[6],s=n[7],h=n[8],M=r[0],l=r[1],v=r[2],m=r[3],p=r[4],d=r[5],A=r[6],R=r[7],w=r[8];return t[0]=M*a+l*o+v*f,t[1]=M*e+l*i+v*s,t[2]=M*u+l*c+v*h,t[3]=m*a+p*o+d*f,t[4]=m*e+p*i+d*s,t[5]=m*u+p*c+d*h,t[6]=A*a+R*o+w*f,t[7]=A*e+R*i+w*s,t[8]=A*u+R*c+w*h,t},e.mul=e.multiply,e.translate=function(t,n,r){var a=n[0],e=n[1],u=n[2],o=n[3],i=n[4],c=n[5],f=n[6],s=n[7],h=n[8],M=r[0],l=r[1];return t[0]=a,t[1]=e,t[2]=u,t[3]=o,t[4]=i,t[5]=c,t[6]=M*a+l*o+f,t[7]=M*e+l*i+s,t[8]=M*u+l*c+h,t},e.rotate=function(t,n,r){var a=n[0],e=n[1],u=n[2],o=n[3],i=n[4],c=n[5],f=n[6],s=n[7],h=n[8],M=Math.sin(r),l=Math.cos(r);return t[0]=l*a+M*o,t[1]=l*e+M*i,t[2]=l*u+M*c,t[3]=l*o-M*a,t[4]=l*i-M*e,t[5]=l*c-M*u,t[6]=f,t[7]=s,t[8]=h,t},e.scale=function(t,n,r){var a=r[0],e=r[1];return t[0]=a*n[0],t[1]=a*n[1],t[2]=a*n[2],t[3]=e*n[3],t[4]=e*n[4],t[5]=e*n[5],t[6]=n[6],t[7]=n[7],t[8]=n[8],t},e.fromTranslation=function(t,n){return t[0]=1,t[1]=0,t[2]=0,t[3]=0,t[4]=1,t[5]=0,t[6]=n[0],t[7]=n[1],t[8]=1,t},e.fromRotation=function(t,n){var r=Math.sin(n),a=Math.cos(n);return t[0]=a,t[1]=r,t[2]=0,t[3]=-r,t[4]=a,t[5]=0,t[6]=0,t[7]=0,t[8]=1,t},e.fromScaling=function(t,n){return t[0]=n[0],t[1]=0,t[2]=0,t[3]=0,t[4]=n[1],t[5]=0,t[6]=0,t[7]=0,t[8]=1,t},e.fromMat2d=function(t,n){return t[0]=n[0],t[1]=n[1],t[2]=0,t[3]=n[2],t[4]=n[3],t[5]=0,t[6]=n[4],t[7]=n[5],t[8]=1,t},e.fromQuat=function(t,n){var r=n[0],a=n[1],e=n[2],u=n[3],o=r+r,i=a+a,c=e+e,f=r*o,s=a*o,h=a*i,M=e*o,l=e*i,v=e*c,m=u*o,p=u*i,d=u*c;return t[0]=1-h-v,t[3]=s-d,t[6]=M+p,t[1]=s+d,t[4]=1-f-v,t[7]=l-m,t[2]=M-p,t[5]=l+m,t[8]=1-f-h,t},e.normalFromMat4=function(t,n){var r=n[0],a=n[1],e=n[2],u=n[3],o=n[4],i=n[5],c=n[6],f=n[7],s=n[8],h=n[9],M=n[10],l=n[11],v=n[12],m=n[13],p=n[14],d=n[15],A=r*i-a*o,R=r*c-e*o,w=r*f-u*o,q=a*c-e*i,Y=a*f-u*i,g=e*f-u*c,y=s*m-h*v,x=s*p-M*v,P=s*d-l*v,E=h*p-M*m,T=h*d-l*m,b=M*d-l*p,D=A*b-R*T+w*E+q*P-Y*x+g*y;return D?(D=1/D,t[0]=(i*b-c*T+f*E)*D,t[1]=(c*P-o*b-f*x)*D,t[2]=(o*T-i*P+f*y)*D,t[3]=(e*T-a*b-u*E)*D,t[4]=(r*b-e*P+u*x)*D,t[5]=(a*P-r*T-u*y)*D,t[6]=(m*g-p*Y+d*q)*D,t[7]=(p*w-v*g-d*R)*D,t[8]=(v*Y-m*w+d*A)*D,t):null},e.str=function(t){return"mat3("+t[0]+", "+t[1]+", "+t[2]+", "+t[3]+", "+t[4]+", "+t[5]+", "+t[6]+", "+t[7]+", "+t[8]+")"},e.frob=function(t){return Math.sqrt(Math.pow(t[0],2)+Math.pow(t[1],2)+Math.pow(t[2],2)+Math.pow(t[3],2)+Math.pow(t[4],2)+Math.pow(t[5],2)+Math.pow(t[6],2)+Math.pow(t[7],2)+Math.pow(t[8],2))},t.exports=e},function(t,n,r){var a=r(1),e={};e.create=function(){var t=new a.ARRAY_TYPE(16);return t[0]=1,t[1]=0,t[2]=0,t[3]=0,t[4]=0,t[5]=1,t[6]=0,t[7]=0,t[8]=0,t[9]=0,t[10]=1,t[11]=0,t[12]=0,t[13]=0,t[14]=0,t[15]=1,t},e.clone=function(t){var n=new a.ARRAY_TYPE(16);return n[0]=t[0],n[1]=t[1],n[2]=t[2],n[3]=t[3],n[4]=t[4],n[5]=t[5],n[6]=t[6],n[7]=t[7],n[8]=t[8],n[9]=t[9],n[10]=t[10],n[11]=t[11],n[12]=t[12],n[13]=t[13],n[14]=t[14],n[15]=t[15],n},e.copy=function(t,n){return t[0]=n[0],t[1]=n[1],t[2]=n[2],t[3]=n[3],t[4]=n[4],t[5]=n[5],t[6]=n[6],t[7]=n[7],t[8]=n[8],t[9]=n[9],t[10]=n[10],t[11]=n[11],t[12]=n[12],t[13]=n[13],t[14]=n[14],t[15]=n[15],t},e.identity=function(t){return t[0]=1,t[1]=0,t[2]=0,t[3]=0,t[4]=0,t[5]=1,t[6]=0,t[7]=0,t[8]=0,t[9]=0,t[10]=1,t[11]=0,t[12]=0,t[13]=0,t[14]=0,t[15]=1,t},e.transpose=function(t,n){if(t===n){var r=n[1],a=n[2],e=n[3],u=n[6],o=n[7],i=n[11];t[1]=n[4],t[2]=n[8],t[3]=n[12],t[4]=r,t[6]=n[9],t[7]=n[13],t[8]=a,t[9]=u,t[11]=n[14],t[12]=e,t[13]=o,t[14]=i}else t[0]=n[0],t[1]=n[4],t[2]=n[8],t[3]=n[12],t[4]=n[1],t[5]=n[5],t[6]=n[9],t[7]=n[13],t[8]=n[2],t[9]=n[6],t[10]=n[10],t[11]=n[14],t[12]=n[3],t[13]=n[7],t[14]=n[11],t[15]=n[15];return t},e.invert=function(t,n){var r=n[0],a=n[1],e=n[2],u=n[3],o=n[4],i=n[5],c=n[6],f=n[7],s=n[8],h=n[9],M=n[10],l=n[11],v=n[12],m=n[13],p=n[14],d=n[15],A=r*i-a*o,R=r*c-e*o,w=r*f-u*o,q=a*c-e*i,Y=a*f-u*i,g=e*f-u*c,y=s*m-h*v,x=s*p-M*v,P=s*d-l*v,E=h*p-M*m,T=h*d-l*m,b=M*d-l*p,D=A*b-R*T+w*E+q*P-Y*x+g*y;return D?(D=1/D,t[0]=(i*b-c*T+f*E)*D,t[1]=(e*T-a*b-u*E)*D,t[2]=(m*g-p*Y+d*q)*D,t[3]=(M*Y-h*g-l*q)*D,t[4]=(c*P-o*b-f*x)*D,t[5]=(r*b-e*P+u*x)*D,t[6]=(p*w-v*g-d*R)*D,t[7]=(s*g-M*w+l*R)*D,t[8]=(o*T-i*P+f*y)*D,t[9]=(a*P-r*T-u*y)*D,t[10]=(v*Y-m*w+d*A)*D,t[11]=(h*w-s*Y-l*A)*D,t[12]=(i*x-o*E-c*y)*D,t[13]=(r*E-a*x+e*y)*D,t[14]=(m*R-v*q-p*A)*D,t[15]=(s*q-h*R+M*A)*D,t):null},e.adjoint=function(t,n){var r=n[0],a=n[1],e=n[2],u=n[3],o=n[4],i=n[5],c=n[6],f=n[7],s=n[8],h=n[9],M=n[10],l=n[11],v=n[12],m=n[13],p=n[14],d=n[15];return t[0]=i*(M*d-l*p)-h*(c*d-f*p)+m*(c*l-f*M),t[1]=-(a*(M*d-l*p)-h*(e*d-u*p)+m*(e*l-u*M)),t[2]=a*(c*d-f*p)-i*(e*d-u*p)+m*(e*f-u*c),t[3]=-(a*(c*l-f*M)-i*(e*l-u*M)+h*(e*f-u*c)),t[4]=-(o*(M*d-l*p)-s*(c*d-f*p)+v*(c*l-f*M)),t[5]=r*(M*d-l*p)-s*(e*d-u*p)+v*(e*l-u*M),t[6]=-(r*(c*d-f*p)-o*(e*d-u*p)+v*(e*f-u*c)),t[7]=r*(c*l-f*M)-o*(e*l-u*M)+s*(e*f-u*c),t[8]=o*(h*d-l*m)-s*(i*d-f*m)+v*(i*l-f*h),t[9]=-(r*(h*d-l*m)-s*(a*d-u*m)+v*(a*l-u*h)),t[10]=r*(i*d-f*m)-o*(a*d-u*m)+v*(a*f-u*i),t[11]=-(r*(i*l-f*h)-o*(a*l-u*h)+s*(a*f-u*i)),t[12]=-(o*(h*p-M*m)-s*(i*p-c*m)+v*(i*M-c*h)),t[13]=r*(h*p-M*m)-s*(a*p-e*m)+v*(a*M-e*h),t[14]=-(r*(i*p-c*m)-o*(a*p-e*m)+v*(a*c-e*i)),t[15]=r*(i*M-c*h)-o*(a*M-e*h)+s*(a*c-e*i),t},e.determinant=function(t){var n=t[0],r=t[1],a=t[2],e=t[3],u=t[4],o=t[5],i=t[6],c=t[7],f=t[8],s=t[9],h=t[10],M=t[11],l=t[12],v=t[13],m=t[14],p=t[15],d=n*o-r*u,A=n*i-a*u,R=n*c-e*u,w=r*i-a*o,q=r*c-e*o,Y=a*c-e*i,g=f*v-s*l,y=f*m-h*l,x=f*p-M*l,P=s*m-h*v,E=s*p-M*v,T=h*p-M*m;return d*T-A*E+R*P+w*x-q*y+Y*g},e.multiply=function(t,n,r){var a=n[0],e=n[1],u=n[2],o=n[3],i=n[4],c=n[5],f=n[6],s=n[7],h=n[8],M=n[9],l=n[10],v=n[11],m=n[12],p=n[13],d=n[14],A=n[15],R=r[0],w=r[1],q=r[2],Y=r[3];return t[0]=R*a+w*i+q*h+Y*m,t[1]=R*e+w*c+q*M+Y*p,t[2]=R*u+w*f+q*l+Y*d,t[3]=R*o+w*s+q*v+Y*A,R=r[4],w=r[5],q=r[6],Y=r[7],t[4]=R*a+w*i+q*h+Y*m,t[5]=R*e+w*c+q*M+Y*p,t[6]=R*u+w*f+q*l+Y*d,t[7]=R*o+w*s+q*v+Y*A,R=r[8],w=r[9],q=r[10],Y=r[11],t[8]=R*a+w*i+q*h+Y*m,t[9]=R*e+w*c+q*M+Y*p,t[10]=R*u+w*f+q*l+Y*d,t[11]=R*o+w*s+q*v+Y*A,R=r[12],w=r[13],q=r[14],Y=r[15],t[12]=R*a+w*i+q*h+Y*m,t[13]=R*e+w*c+q*M+Y*p,t[14]=R*u+w*f+q*l+Y*d,t[15]=R*o+w*s+q*v+Y*A,t},e.mul=e.multiply,e.translate=function(t,n,r){var a,e,u,o,i,c,f,s,h,M,l,v,m=r[0],p=r[1],d=r[2];return 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function(arr, val) { - var l = arr.length; - while (l--) { - arr[l] = val; - } - }, - - /** - * Shuffles the content of an array - * @return {Array} the array itself shuffled - */ - shuffle : function(arr) { - var i = arr.length - 1, j, x; - for (i; i >= 0; i--) { - j = Math.floor(Math.random() * i); - x = arr[i]; - arr[i] = arr[j]; - arr[j] = x; - } - return arr; - }, - - toPointList : function(arr) { - var i, j, row = [], rows = []; - for ( i = 0; i < arr.length; i++) { - row = []; - for ( j = 0; j < arr[i].length; j++) { - row[j] = arr[i][j]; - } - rows[i] = "[" + row.join(",") + "]"; - } - return "[" + rows.join(",\r\n") + "]"; - }, - - /** - * returns the elements which's score is bigger than the threshold - * @return {Array} the reduced array - */ - threshold : function(arr, threshold, scoreFunc) { - var i, queue = []; - for ( i = 0; i < arr.length; i++) { - if (scoreFunc.apply(arr, [arr[i]]) >= threshold) { - queue.push(arr[i]); - } - } - return queue; - }, - - maxIndex : function(arr) { - var i, max = 0; - for ( i = 0; i < arr.length; i++) { - if (arr[i] > arr[max]) { - max = i; - } - } - return max; - }, - - max : function(arr) { - var i, max = 0; - for ( i = 0; i < arr.length; i++) { - if (arr[i] > max) { - max = arr[i]; - } - } - return max; - }, - - sum: function(arr) { - var length = arr.length, - sum = 0; - - while(length--) { - sum += arr[length]; - } - return sum; - } - }; -}); -/* jshint undef: true, unused: true, browser:true, devel: true */ -/* global define */ - -define('cv_utils',['cluster', "array_helper", "gl-matrix"], function(Cluster2, ArrayHelper, glMatrix) { - - "use strict"; - /* - * cv_utils.js - * Collection of CV functions and libraries - */ - - /** - * Namespace for various CV alorithms - * @class Represents a collection of useful CV algorithms/functions - */ - - var CVUtils = {}, - vec2 = glMatrix.vec2, - vec3 = glMatrix.vec3; - - /** - * @param x x-coordinate - * @param y y-coordinate - * @return ImageReference {x,y} Coordinate - */ - CVUtils.imageRef = function(x, y) { - var that = { - x : x, - y : y, - toVec2 : function() { - return vec2.clone([this.x, this.y]); - }, - toVec3 : function() { - return vec3.clone([this.x, this.y, 1]); - }, - round : function() { - this.x = this.x > 0.0 ? Math.floor(this.x + 0.5) : Math.floor(this.x - 0.5); - this.y = this.y > 0.0 ? Math.floor(this.y + 0.5) : Math.floor(this.y - 0.5); - return this; - } - }; - return that; - }; - - /** - * Computes an integral image of a given grayscale image. - * @param imageDataContainer {ImageDataContainer} the image to be integrated - */ - CVUtils.computeIntegralImage2 = function(imageWrapper, integralWrapper) { - var imageData = imageWrapper.data; - var width = imageWrapper.size.x; - var height = imageWrapper.size.y; - var integralImageData = integralWrapper.data; - var sum = 0, posA = 0, posB = 0, posC = 0, posD = 0, x, y; - - // sum up first column - posB = width; - sum = 0; - for ( y = 1; y < height; y++) { - sum += imageData[posA]; - integralImageData[posB] += sum; - posA += width; - posB += width; - } - - posA = 0; - posB = 1; - sum = 0; - for ( x = 1; x < width; x++) { - sum += imageData[posA]; - integralImageData[posB] += sum; - posA++; - posB++; - } - - for ( y = 1; y < height; y++) { - posA = y * width + 1; - posB = (y - 1) * width + 1; - posC = y * width; - posD = (y - 1) * width; - for ( x = 1; x < width; x++) { - integralImageData[posA] += imageData[posA] + integralImageData[posB] + integralImageData[posC] - integralImageData[posD]; - posA++; - posB++; - posC++; - posD++; - } - } - }; - - CVUtils.computeIntegralImage = function(imageWrapper, integralWrapper) { - var imageData = imageWrapper.data; - var width = imageWrapper.size.x; - var height = imageWrapper.size.y; - var integralImageData = integralWrapper.data; - var sum = 0; - - // sum up first row - for (var i = 0; i < width; i++) { - sum += imageData[i]; - integralImageData[i] = sum; - } - - for (var v = 1; v < height; v++) { - sum = 0; - for (var u = 0; u < width; u++) { - sum += imageData[v * width + u]; - integralImageData[((v) * width) + u] = sum + integralImageData[(v - 1) * width + u]; - } - } - }; - - CVUtils.thresholdImage = function(imageWrapper, threshold, targetWrapper) { - if (!targetWrapper) { - targetWrapper = imageWrapper; - } - var imageData = imageWrapper.data, length = imageData.length, targetData = targetWrapper.data; - - while (length--) { - targetData[length] = imageData[length] < threshold ? 1 : 0; - } - }; - - CVUtils.computeHistogram = function(imageWrapper, bitsPerPixel) { - if (!bitsPerPixel) { - bitsPerPixel = 8; - } - var imageData = imageWrapper.data, - length = imageData.length, - bitShift = 8 - bitsPerPixel, - bucketCnt = 1 << bitsPerPixel, - hist = new Int32Array(bucketCnt); - - while (length--) { - hist[imageData[length] >> bitShift]++; - } - return hist; - }; - - CVUtils.sharpenLine = function(line) { - var i, - length = line.length, - left = line[0], - center = line[1], - right; - - for (i = 1; i < length - 1; i++) { - right = line[i + 1]; - // -1 4 -1 kernel - line[i-1] = (((center * 2) - left - right)) & 255; - left = center; - center = right; - } - return line; - }; - - CVUtils.determineOtsuThreshold = function(imageWrapper, bitsPerPixel) { - if (!bitsPerPixel) { - bitsPerPixel = 8; - } - var hist, - threshold, - bitShift = 8 - bitsPerPixel; - - function px(init, end) { - var sum = 0, i; - for ( i = init; i <= end; i++) { - sum += hist[i]; - } - return sum; - } - - function mx(init, end) { - var i, sum = 0; - - for ( i = init; i <= end; i++) { - sum += i * hist[i]; - } - - return sum; - } - - function determineThreshold() { - var vet = [0], p1, p2, p12, k, m1, m2, m12, - max = (1 << bitsPerPixel) - 1; - - hist = CVUtils.computeHistogram(imageWrapper, bitsPerPixel); - for ( k = 1; k < max; k++) { - p1 = px(0, k); - p2 = px(k + 1, max); - p12 = p1 * p2; - if (p12 === 0) { - p12 = 1; - } - m1 = mx(0, k) * p2; - m2 = mx(k + 1, max) * p1; - m12 = m1 - m2; - vet[k] = m12 * m12 / p12; - } - return ArrayHelper.maxIndex(vet); - } - - threshold = determineThreshold(); - return threshold << bitShift; - }; - - CVUtils.otsuThreshold = function(imageWrapper, targetWrapper) { - var threshold = CVUtils.determineOtsuThreshold(imageWrapper); - - CVUtils.thresholdImage(imageWrapper, threshold, targetWrapper); - return threshold; - }; - - // local thresholding - CVUtils.computeBinaryImage = function(imageWrapper, integralWrapper, targetWrapper) { - CVUtils.computeIntegralImage(imageWrapper, integralWrapper); - - if (!targetWrapper) { - targetWrapper = imageWrapper; - } - var imageData = imageWrapper.data; - var targetData = targetWrapper.data; - var width = imageWrapper.size.x; - var height = imageWrapper.size.y; - var integralImageData = integralWrapper.data; - var sum = 0, v, u, kernel = 3, A, B, C, D, avg, size = (kernel * 2 + 1) * (kernel * 2 + 1); - - // clear out top & bottom-border - for ( v = 0; v <= kernel; v++) { - for ( u = 0; u < width; u++) { - targetData[((v) * width) + u] = 0; - targetData[(((height - 1) - v) * width) + u] = 0; - } - } - - // clear out left & right border - for ( v = kernel; v < height - kernel; v++) { - for ( u = 0; u <= kernel; u++) { - targetData[((v) * width) + u] = 0; - targetData[((v) * width) + (width - 1 - u)] = 0; - } - } - - for ( v = kernel + 1; v < height - kernel - 1; v++) { - for ( u = kernel + 1; u < width - kernel; u++) { - A = integralImageData[(v - kernel - 1) * width + (u - kernel - 1)]; - B = integralImageData[(v - kernel - 1) * width + (u + kernel)]; - C = integralImageData[(v + kernel) * width + (u - kernel - 1)]; - D = integralImageData[(v + kernel) * width + (u + kernel)]; - sum = D - C - B + A; - avg = sum / (size); - targetData[v * width + u] = imageData[v * width + u] > (avg + 5) ? 0 : 1; - } - } - }; - - CVUtils.cluster = function(points, threshold, property) { - var i, k, cluster, point, clusters = []; - - if (!property) { - property = "rad"; - } - - function addToCluster(point) { - var found = false; - for ( k = 0; k < clusters.length; k++) { - cluster = clusters[k]; - if (cluster.fits(point)) { - cluster.add(point); - found = true; - } - } - return found; - } - - // iterate over each cloud - for ( i = 0; i < points.length; i++) { - point = Cluster2.createPoint(points[i], i, property); - if (!addToCluster(point)) { - clusters.push(Cluster2.create(point, threshold)); - } - } - - return clusters; - - }; - - CVUtils.Tracer = { - trace : function(points, vec) { - var iteration, maxIterations = 10, top = [], result = [], centerPos = 0, currentPos = 0; - - function trace(idx, forward) { - var from, to, toIdx, predictedPos, thresholdX = 1, thresholdY = Math.abs(vec[1] / 10), found = false; - - function match(pos, predicted) { - if (pos.x > (predicted.x - thresholdX) && pos.x < (predicted.x + thresholdX) && pos.y > (predicted.y - thresholdY) && pos.y < (predicted.y + thresholdY)) { - return true; - } else { - return false; - } - } - - // check if the next index is within the vec specifications - // if not, check as long as the threshold is met - - from = points[idx]; - if (forward) { - predictedPos = { - x : from.x + vec[0], - y : from.y + vec[1] - }; - } else { - predictedPos = { - x : from.x - vec[0], - y : from.y - vec[1] - }; - } - - toIdx = forward ? idx + 1 : idx - 1; - to = points[toIdx]; - while (to && ( found = match(to, predictedPos)) !== true && (Math.abs(to.y - from.y) < vec[1])) { - toIdx = forward ? toIdx + 1 : toIdx - 1; - to = points[toIdx]; - } - - return found ? toIdx : null; - } - - for ( iteration = 0; iteration < maxIterations; iteration++) { - // randomly select point to start with - centerPos = Math.floor(Math.random() * points.length); - - // trace forward - top = []; - currentPos = centerPos; - top.push(points[currentPos]); - while (( currentPos = trace(currentPos, true)) !== null) { - top.push(points[currentPos]); - } - if (centerPos > 0) { - currentPos = centerPos; - while (( currentPos = trace(currentPos, false)) !== null) { - top.push(points[currentPos]); - } - } - - if (top.length > result.length) { - result = top; - } - } - - return result; - - } - }; - - CVUtils.DILATE = 1; - CVUtils.ERODE = 2; - - CVUtils.dilate = function(inImageWrapper, outImageWrapper) { - var v, u, inImageData = inImageWrapper.data, outImageData = outImageWrapper.data, height = inImageWrapper.size.y, width = inImageWrapper.size.x, sum, yStart1, yStart2, xStart1, xStart2; - - for ( v = 1; v < height - 1; v++) { - for ( u = 1; u < width - 1; u++) { - yStart1 = v - 1; - yStart2 = v + 1; - xStart1 = u - 1; - xStart2 = u + 1; - sum = inImageData[yStart1 * width + xStart1]/* + inImageData[yStart1*width+u] */ + inImageData[yStart1 * width + xStart2] + - /* inImageData[v*width+xStart1] + */ - inImageData[v * width + u] + /* inImageData[v*width+xStart2] +*/ - inImageData[yStart2 * width + xStart1]/* + inImageData[yStart2*width+u]*/ + inImageData[yStart2 * width + xStart2]; - outImageData[v * width + u] = sum > 0 ? 1 : 0; - } - } - }; - - CVUtils.erode = function(inImageWrapper, outImageWrapper) { - var v, u, inImageData = inImageWrapper.data, outImageData = outImageWrapper.data, height = inImageWrapper.size.y, width = inImageWrapper.size.x, sum, yStart1, yStart2, xStart1, xStart2; - - for ( v = 1; v < height - 1; v++) { - for ( u = 1; u < width - 1; u++) { - yStart1 = v - 1; - yStart2 = v + 1; - xStart1 = u - 1; - xStart2 = u + 1; - sum = inImageData[yStart1 * width + xStart1]/* + inImageData[yStart1*width+u] */ + inImageData[yStart1 * width + xStart2] + - /* inImageData[v*width+xStart1] + */ - inImageData[v * width + u] + /* inImageData[v*width+xStart2] +*/ - inImageData[yStart2 * width + xStart1]/* + inImageData[yStart2*width+u]*/ + inImageData[yStart2 * width + xStart2]; - outImageData[v * width + u] = sum === 5 ? 1 : 0; - } - } - }; - - CVUtils.subtract = function(aImageWrapper, bImageWrapper, resultImageWrapper) { - if (!resultImageWrapper) { - resultImageWrapper = aImageWrapper; - } - var length = aImageWrapper.data.length, aImageData = aImageWrapper.data, bImageData = bImageWrapper.data, cImageData = resultImageWrapper.data; - - while (length--) { - cImageData[length] = aImageData[length] - bImageData[length]; - } - }; - - CVUtils.bitwiseOr = function(aImageWrapper, bImageWrapper, resultImageWrapper) { - if (!resultImageWrapper) { - resultImageWrapper = aImageWrapper; - } - var length = aImageWrapper.data.length, aImageData = aImageWrapper.data, bImageData = bImageWrapper.data, cImageData = resultImageWrapper.data; - - while (length--) { - cImageData[length] = aImageData[length] || bImageData[length]; - } - }; - - CVUtils.countNonZero = function(imageWrapper) { - var length = imageWrapper.data.length, data = imageWrapper.data, sum = 0; - - while (length--) { - sum += data[length]; - } - return sum; - }; - - CVUtils.topGeneric = function(list, top, scoreFunc) { - var i, minIdx = 0, min = 0, queue = [], score, hit, pos; - - for ( i = 0; i < top; i++) { - queue[i] = { - score : 0, - item : null - }; - } - - for ( i = 0; i < list.length; i++) { - score = scoreFunc.apply(this, [list[i]]); - if (score > min) { - hit = queue[minIdx]; - hit.score = score; - hit.item = list[i]; - min = Number.MAX_VALUE; - for ( pos = 0; pos < top; pos++) { - if (queue[pos].score < min) { - min = queue[pos].score; - minIdx = pos; - } - } - } - } - - return queue; - }; - - CVUtils.grayArrayFromImage = function(htmlImage, offsetX, ctx, array) { - ctx.drawImage(htmlImage, offsetX, 0, htmlImage.width, htmlImage.height); - var ctxData = ctx.getImageData(offsetX, 0, htmlImage.width, htmlImage.height).data; - CVUtils.computeGray(ctxData, array); - }; - - CVUtils.grayArrayFromContext = function(ctx, size, offset, array) { - var ctxData = ctx.getImageData(offset.x, offset.y, size.x, size.y).data; - CVUtils.computeGray(ctxData, array); - }; - - CVUtils.grayAndHalfSampleFromCanvasData = function(canvasData, size, outArray) { - var topRowIdx = 0; - var bottomRowIdx = size.x; - var endIdx = Math.floor(canvasData.length / 4); - var outWidth = size.x / 2; - var outImgIdx = 0; - var inWidth = size.x; - var i; - - while (bottomRowIdx < endIdx) { - for ( i = 0; i < outWidth; i++) { - outArray[outImgIdx] = Math.floor(((0.299 * canvasData[topRowIdx * 4 + 0] + 0.587 * canvasData[topRowIdx * 4 + 1] + 0.114 * canvasData[topRowIdx * 4 + 2]) + (0.299 * canvasData[(topRowIdx + 1) * 4 + 0] + 0.587 * canvasData[(topRowIdx + 1) * 4 + 1] + 0.114 * canvasData[(topRowIdx + 1) * 4 + 2]) + (0.299 * canvasData[(bottomRowIdx) * 4 + 0] + 0.587 * canvasData[(bottomRowIdx) * 4 + 1] + 0.114 * canvasData[(bottomRowIdx) * 4 + 2]) + (0.299 * canvasData[(bottomRowIdx + 1) * 4 + 0] + 0.587 * canvasData[(bottomRowIdx + 1) * 4 + 1] + 0.114 * canvasData[(bottomRowIdx + 1) * 4 + 2])) / 4); - outImgIdx++; - topRowIdx = topRowIdx + 2; - bottomRowIdx = bottomRowIdx + 2; - } - topRowIdx = topRowIdx + inWidth; - bottomRowIdx = bottomRowIdx + inWidth; - } - - }; - - CVUtils.computeGray = function(imageData, outArray, config) { - var l = (imageData.length / 4) | 0, - i, - singleChannel = config && config.singleChannel === true; - - if (singleChannel) { - for (i = 0; i < l; i++) { - outArray[i] = imageData[i * 4 + 0]; - } - } else { - for (i = 0; i < l; i++) { - outArray[i] = Math.floor(0.299 * imageData[i * 4 + 0] + 0.587 * imageData[i * 4 + 1] + 0.114 * imageData[i * 4 + 2]); - } - } - }; - - CVUtils.loadImageArray = function(src, callback, canvas) { - if (!canvas) - canvas = document.createElement('canvas'); - var img = new Image(); - img.callback = callback; - img.onload = function() { - canvas.width = this.width; - canvas.height = this.height; - var ctx = canvas.getContext('2d'); - ctx.drawImage(this, 0, 0); - var array = new Uint8Array(this.width * this.height); - ctx.drawImage(this, 0, 0); - var data = ctx.getImageData(0, 0, this.width, this.height).data; - CVUtils.computeGray(data, array); - this.callback(array, { - x : this.width, - y : this.height - }, this); - }; - img.src = src; - }; - - /** - * @param inImg {ImageWrapper} input image to be sampled - * @param outImg {ImageWrapper} to be stored in - */ - CVUtils.halfSample = function(inImgWrapper, outImgWrapper) { - var inImg = inImgWrapper.data; - var inWidth = inImgWrapper.size.x; - var outImg = outImgWrapper.data; - var topRowIdx = 0; - var bottomRowIdx = inWidth; - var endIdx = inImg.length; - var outWidth = inWidth / 2; - var outImgIdx = 0; - while (bottomRowIdx < endIdx) { - for (var i = 0; i < outWidth; i++) { - outImg[outImgIdx] = Math.floor((inImg[topRowIdx] + inImg[topRowIdx + 1] + inImg[bottomRowIdx] + inImg[bottomRowIdx + 1]) / 4); - outImgIdx++; - topRowIdx = topRowIdx + 2; - bottomRowIdx = bottomRowIdx + 2; - } - topRowIdx = topRowIdx + inWidth; - bottomRowIdx = bottomRowIdx + inWidth; - } - }; - - CVUtils.hsv2rgb = function(hsv, rgb) { - var h = hsv[0], s = hsv[1], v = hsv[2], c = v * s, x = c * (1 - Math.abs((h / 60) % 2 - 1)), m = v - c, r = 0, g = 0, b = 0; - rgb = rgb || [0, 0, 0]; - - if (h < 60) { - r = c; - g = x; - } else if (h < 120) { - r = x; - g = c; - } else if (h < 180) { - g = c; - b = x; - } else if (h < 240) { - g = x; - b = c; - } else if (h < 300) { - r = x; - b = c; - } else if (h < 360) { - r = c; - b = x; - } - rgb[0] = ((r + m) * 255) | 0; - rgb[1] = ((g + m) * 255) | 0; - rgb[2] = ((b + m) * 255) | 0; - return rgb; - }; - - CVUtils._computeDivisors = function(n) { - var largeDivisors = [], - divisors = [], - i; - - for (i = 1; i < Math.sqrt(n) + 1; i++) { - if (n % i === 0) { - divisors.push(i); - if (i !== n/i) { - largeDivisors.unshift(Math.floor(n/i)); - } - } - } - return divisors.concat(largeDivisors); - }; - - CVUtils._computeIntersection = function(arr1, arr2) { - var i = 0, - j = 0, - result = []; - - while (i < arr1.length && j < arr2.length) { - if (arr1[i] === arr2[j]) { - result.push(arr1[i]); - i++; - j++; - } else if (arr1[i] > arr2[j]) { - j++; - } else { - i++; - } - } - return result; - }; - - CVUtils.calculatePatchSize = function(patchSize, imgSize) { - var divisorsX = this._computeDivisors(imgSize.x), - divisorsY = this._computeDivisors(imgSize.y), - wideSide = Math.max(imgSize.x, imgSize.y), - common = this._computeIntersection(divisorsX, divisorsY), - nrOfPatchesList = [8, 10, 15, 20, 32, 60, 80], - nrOfPatchesMap = { - "x-small": 5, - "small": 4, - "medium": 3, - "large": 2, - "x-large": 1 - }, - nrOfPatchesIdx = nrOfPatchesMap[patchSize] || nrOfPatchesMap.medium, - nrOfPatches = nrOfPatchesList[nrOfPatchesIdx], - desiredPatchSize = Math.floor(wideSide/nrOfPatches), - optimalPatchSize; - - function findPatchSizeForDivisors(divisors) { - var i = 0, - found = divisors[Math.floor(divisors.length/2)]; - - while(i < (divisors.length - 1) && divisors[i] < desiredPatchSize) { - i++; - } - if (i > 0) { - if (Math.abs(divisors[i] - desiredPatchSize) > Math.abs(divisors[i-1] - desiredPatchSize)) { - found = divisors[i-1]; - } else { - found = divisors[i]; - } - } - if (desiredPatchSize / found < nrOfPatchesList[nrOfPatchesIdx+1] / nrOfPatchesList[nrOfPatchesIdx] && - desiredPatchSize / found > nrOfPatchesList[nrOfPatchesIdx-1]/nrOfPatchesList[nrOfPatchesIdx] ) { - return {x: found, y: found}; - } - return null; - } - - optimalPatchSize = findPatchSizeForDivisors(common); - if (!optimalPatchSize) { - optimalPatchSize = findPatchSizeForDivisors(this._computeDivisors(wideSide)); - if (!optimalPatchSize) { - optimalPatchSize = findPatchSizeForDivisors((this._computeDivisors(desiredPatchSize * nrOfPatches))); - } - } - return optimalPatchSize; - }; - - CVUtils._parseCSSDimensionValues = function(value) { - var dimension = { - value: parseFloat(value), - unit: value.indexOf("%") === value.length-1 ? "%" : "%" - }; - - return dimension; - }; - - CVUtils._dimensionsConverters = { - top: function(dimension, context) { - if (dimension.unit === "%") { - return Math.floor(context.height * (dimension.value / 100)); - } - }, - right: function(dimension, context) { - if (dimension.unit === "%") { - return Math.floor(context.width - (context.width * (dimension.value / 100))); - } - }, - bottom: function(dimension, context) { - if (dimension.unit === "%") { - return Math.floor(context.height - (context.height * (dimension.value / 100))); - } - }, - left: function(dimension, context) { - if (dimension.unit === "%") { - return Math.floor(context.width * (dimension.value / 100)); - } - } - }; - - CVUtils.computeImageArea = function(inputWidth, inputHeight, area) { - var context = {width: inputWidth, height: inputHeight}; - - var parsedArea = Object.keys(area).reduce(function(result, key) { - var value = area[key], - parsed = CVUtils._parseCSSDimensionValues(value), - calculated = CVUtils._dimensionsConverters[key](parsed, context); - - result[key] = calculated; - return result; - }, {}); - - return { - sx: parsedArea.left, - sy: parsedArea.top, - sw: parsedArea.right - parsedArea.left, - sh: parsedArea.bottom - parsedArea.top - }; - }; - - return (CVUtils); -}); - - -/* jshint undef: true, unused: true, browser:true, devel: true */ -/* global define */ - -define('image_wrapper',[ - "subImage", - "cv_utils", - "array_helper", - "gl-matrix" - ], - function(SubImage, CVUtils, ArrayHelper, glMatrix) { - - 'use strict'; - var vec2 = glMatrix.vec2, - mat2 = glMatrix.mat2; - - /** - * Represents a basic image combining the data and size. - * In addition, some methods for manipulation are contained. - * @param size {x,y} The size of the image in pixel - * @param data {Array} If given, a flat array containing the pixel data - * @param ArrayType {Type} If given, the desired DataType of the Array (may be typed/non-typed) - * @param initialize {Boolean} Indicating if the array should be initialized on creation. - * @returns {ImageWrapper} - */ - function ImageWrapper(size, data, ArrayType, initialize) { - if (!data) { - if (ArrayType) { - this.data = new ArrayType(size.x * size.y); - if (ArrayType === Array && initialize) { - ArrayHelper.init(this.data, 0); - } - } else { - this.data = new Uint8Array(size.x * size.y); - if (Uint8Array === Array && initialize) { - ArrayHelper.init(this.data, 0); - } - } - - } else { - this.data = data; - } - this.size = size; - } - - /** - * tests if a position is within the image with a given offset - * @param imgRef {x, y} The location to test - * @param border Number the padding value in pixel - * @returns {Boolean} true if location inside the image's border, false otherwise - * @see cvd/image.h - */ - ImageWrapper.prototype.inImageWithBorder = function(imgRef, border) { - return (imgRef.x >= border) && (imgRef.y >= border) && (imgRef.x < (this.size.x - border)) && (imgRef.y < (this.size.y - border)); - }; - - /** - * Transforms an image according to the given affine-transformation matrix. - * @param inImg ImageWrapper a image containing the information to be extracted. - * @param outImg ImageWrapper the image to be filled. The whole image out image is filled by the in image. - * @param M mat2 the matrix used to map point in the out matrix to those in the in matrix - * @param inOrig vec2 origin in the in image - * @param outOrig vec2 origin in the out image - * @returns Number the number of pixels not in the in image - * @see cvd/vision.h - */ - ImageWrapper.transform = function(inImg, outImg, M, inOrig, outOrig) { - var w = outImg.size.x, h = outImg.size.y, iw = inImg.size.x, ih = inImg.size.y; - var across = vec2.clone([M[0], M[2]]); - var down = vec2.clone([M[1], M[3]]); - var defaultValue = 0; - - var p0 = vec2.subtract(inOrig, mat2.xVec2(M, outOrig, vec2.clone()), vec2.clone()); - - var min_x = p0[0], min_y = p0[1]; - var max_x = min_x, max_y = min_y; - var p, i, j; - - var sampleFunc = ImageWrapper.sample; - - if (across[0] < 0) - min_x += w * across[0]; - else - max_x += w * across[0]; - - if (down[0] < 0) - min_x += h * down[0]; - else - max_x += h * down[0]; - - if (across[1] < 0) - min_y += w * across[1]; - else - max_y += w * across[1]; - - if (down[1] < 0) - min_y += h * down[1]; - else - max_y += h * down[1]; - - var carrigeReturn = vec2.subtract(down, vec2.scale(across, w, vec2.clone()), vec2.clone()); - - if (min_x >= 0 && min_y >= 0 && max_x < iw - 1 && max_y < ih - 1) { - p = p0; - for ( i = 0; i < h; ++i, vec2.add(p, carrigeReturn)) - for ( j = 0; j < w; ++j, vec2.add(p, across)) - outImg.set(j, i, sampleFunc(inImg, p[0], p[1])); - return 0; - } else { - var x_bound = iw - 1; - var y_bound = ih - 1; - var count = 0; - p = p0; - for ( i = 0; i < h; ++i, vec2.add(p, carrigeReturn)) { - for ( j = 0; j < w; ++j, vec2.add(p, across)) { - if (0 <= p[0] && 0 <= p[1] && p[0] < x_bound && p[1] < y_bound) { - outImg.set(j, i, sampleFunc(inImg, p[0], p[1])); - } else { - outImg.set(j, i, defaultValue); ++count; - } - } - } - return count; - } - }; - - /** - * Performs bilinear sampling - * @param inImg Image to extract sample from - * @param x the x-coordinate - * @param y the y-coordinate - * @returns the sampled value - * @see cvd/vision.h - */ - ImageWrapper.sample = function(inImg, x, y) { - var lx = Math.floor(x); - var ly = Math.floor(y); - var w = inImg.size.x; - var base = ly * inImg.size.x + lx; - var a = inImg.data[base + 0]; - var b = inImg.data[base + 1]; - var c = inImg.data[base + w]; - var d = inImg.data[base + w + 1]; - var e = a - b; - x -= lx; - y -= ly; - - var result = Math.floor(x * (y * (e - c + d) - e) + y * (c - a) + a); - return result; - }; - - /** - * Initializes a given array. Sets each element to zero. - * @param array {Array} The array to initialize - */ - ImageWrapper.clearArray = function(array) { - var l = array.length; - while (l--) { - array[l] = 0; - } - }; - - /** - * Creates a {SubImage} from the current image ({this}). - * @param from {ImageRef} The position where to start the {SubImage} from. (top-left corner) - * @param size {ImageRef} The size of the resulting image - * @returns {SubImage} A shared part of the original image - */ - ImageWrapper.prototype.subImage = function(from, size) { - return new SubImage(from, size, this); - }; - - /** - * Creates an {ImageWrapper) and copies the needed underlying image-data area - * @param imageWrapper {ImageWrapper} The target {ImageWrapper} where the data should be copied - * @param from {ImageRef} The location where to copy from (top-left location) - */ - ImageWrapper.prototype.subImageAsCopy = function(imageWrapper, from) { - var sizeY = imageWrapper.size.y, sizeX = imageWrapper.size.x; - var x, y; - for ( x = 0; x < sizeX; x++) { - for ( y = 0; y < sizeY; y++) { - imageWrapper.data[y * sizeX + x] = this.data[(from.y + y) * this.size.x + from.x + x]; - } - } - }; - - ImageWrapper.prototype.copyTo = function(imageWrapper) { - var length = this.data.length, srcData = this.data, dstData = imageWrapper.data; - - while (length--) { - dstData[length] = srcData[length]; - } - }; - - /** - * Retrieves a given pixel position from the image - * @param x {Number} The x-position - * @param y {Number} The y-position - * @returns {Number} The grayscale value at the pixel-position - */ - ImageWrapper.prototype.get = function(x, y) { - return this.data[y * this.size.x + x]; - }; - - /** - * Retrieves a given pixel position from the image - * @param x {Number} The x-position - * @param y {Number} The y-position - * @returns {Number} The grayscale value at the pixel-position - */ - ImageWrapper.prototype.getSafe = function(x, y) { - var i; - - if (!this.indexMapping) { - this.indexMapping = { - x : [], - y : [] - }; - for (i = 0; i < this.size.x; i++) { - this.indexMapping.x[i] = i; - this.indexMapping.x[i + this.size.x] = i; - } - for (i = 0; i < this.size.y; i++) { - this.indexMapping.y[i] = i; - this.indexMapping.y[i + this.size.y] = i; - } - } - return this.data[(this.indexMapping.y[y + this.size.y]) * this.size.x + this.indexMapping.x[x + this.size.x]]; - }; - - /** - * Sets a given pixel position in the image - * @param x {Number} The x-position - * @param y {Number} The y-position - * @param value {Number} The grayscale value to set - * @returns {ImageWrapper} The Image itself (for possible chaining) - */ - ImageWrapper.prototype.set = function(x, y, value) { - this.data[y * this.size.x + x] = value; - return this; - }; - - /** - * Sets the border of the image (1 pixel) to zero - */ - ImageWrapper.prototype.zeroBorder = function() { - var i, width = this.size.x, height = this.size.y, data = this.data; - for ( i = 0; i < width; i++) { - data[i] = data[(height - 1) * width + i] = 0; - } - for ( i = 1; i < height - 1; i++) { - data[i * width] = data[i * width + (width - 1)] = 0; - } - }; - - /** - * Inverts a binary image in place - */ - ImageWrapper.prototype.invert = function() { - var data = this.data, length = data.length; - - while (length--) { - data[length] = data[length] ? 0 : 1; - } - - }; - - ImageWrapper.prototype.convolve = function(kernel) { - var x, y, kx, ky, kSize = (kernel.length / 2) | 0, accu = 0; - for ( y = 0; y < this.size.y; y++) { - for ( x = 0; x < this.size.x; x++) { - accu = 0; - for ( ky = -kSize; ky <= kSize; ky++) { - for ( kx = -kSize; kx <= kSize; kx++) { - accu += kernel[ky+kSize][kx + kSize] * this.getSafe(x + kx, y + ky); - } - } - this.data[y * this.size.x + x] = accu; - } - } - }; - - ImageWrapper.prototype.moments = function(labelcount) { - var data = this.data, - x, - y, - height = this.size.y, - width = this.size.x, - val, - ysq, - labelsum = [], - i, - label, - mu11, - mu02, - mu20, - x_, - y_, - tmp, - result = [], - PI = Math.PI, - PI_4 = PI / 4; - - if (labelcount <= 0) { - return result; - } - - for ( i = 0; i < labelcount; i++) { - labelsum[i] = { - m00 : 0, - m01 : 0, - m10 : 0, - m11 : 0, - m02 : 0, - m20 : 0, - theta : 0, - rad : 0 - }; - } - - for ( y = 0; y < height; y++) { - ysq = y * y; - for ( x = 0; x < width; x++) { - val = data[y * width + x]; - if (val > 0) { - label = labelsum[val - 1]; - label.m00 += 1; - label.m01 += y; - label.m10 += x; - label.m11 += x * y; - label.m02 += ysq; - label.m20 += x * x; - } - } - } - - for ( i = 0; i < labelcount; i++) { - label = labelsum[i]; - if (!isNaN(label.m00) && label.m00 !== 0) { - x_ = label.m10 / label.m00; - y_ = label.m01 / label.m00; - mu11 = label.m11 / label.m00 - x_ * y_; - mu02 = label.m02 / label.m00 - y_ * y_; - mu20 = label.m20 / label.m00 - x_ * x_; - tmp = (mu02 - mu20) / (2 * mu11); - tmp = 0.5 * Math.atan(tmp) + (mu11 >= 0 ? PI_4 : -PI_4 ) + PI; - label.theta = (tmp * 180 / PI + 90) % 180 - 90; - if (label.theta < 0) { - label.theta += 180; - } - label.rad = tmp > PI ? tmp - PI : tmp; - label.vec = vec2.clone([Math.cos(tmp), Math.sin(tmp)]); - result.push(label); - } - } - - return result; - }; - - /** - * Displays the {ImageWrapper} in a given canvas - * @param canvas {Canvas} The canvas element to write to - * @param scale {Number} Scale which is applied to each pixel-value - */ - ImageWrapper.prototype.show = function(canvas, scale) { - var ctx, - frame, - data, - current, - pixel, - x, - y; - - if (!scale) { - scale = 1.0; - } - ctx = canvas.getContext('2d'); - canvas.width = this.size.x; - canvas.height = this.size.y; - frame = ctx.getImageData(0, 0, canvas.width, canvas.height); - data = frame.data; - current = 0; - for (y = 0; y < this.size.y; y++) { - for (x = 0; x < this.size.x; x++) { - pixel = y * this.size.x + x; - current = this.get(x, y) * scale; - data[pixel * 4 + 0] = current; - data[pixel * 4 + 1] = current; - data[pixel * 4 + 2] = current; - data[pixel * 4 + 3] = 255; - } - } - //frame.data = data; - ctx.putImageData(frame, 0, 0); - }; - - /** - * Displays the {SubImage} in a given canvas - * @param canvas {Canvas} The canvas element to write to - * @param scale {Number} Scale which is applied to each pixel-value - */ - ImageWrapper.prototype.overlay = function(canvas, scale, from) { - if (!scale || scale < 0 || scale > 360) { - scale = 360; - } - var hsv = [0, 1, 1]; - var rgb = [0, 0, 0]; - var whiteRgb = [255, 255, 255]; - var blackRgb = [0, 0, 0]; - var result = []; - var ctx = canvas.getContext('2d'); - var frame = ctx.getImageData(from.x, from.y, this.size.x, this.size.y); - var data = frame.data; - var length = this.data.length; - while (length--) { - hsv[0] = this.data[length] * scale; - result = hsv[0] <= 0 ? whiteRgb : hsv[0] >= 360 ? blackRgb : CVUtils.hsv2rgb(hsv, rgb); - data[length * 4 + 0] = result[0]; - data[length * 4 + 1] = result[1]; - data[length * 4 + 2] = result[2]; - data[length * 4 + 3] = 255; - } - ctx.putImageData(frame, from.x, from.y); - }; - - return (ImageWrapper); -}); -/* jshint undef: true, unused: true, browser:true, devel: true */ -/* global define */ - -/** - * http://www.codeproject.com/Tips/407172/Connected-Component-Labeling-and-Vectorization - */ -define('tracer',[],function() { - "use strict"; - - var Tracer = { - searchDirections : [[0, 1], [1, 1], [1, 0], [1, -1], [0, -1], [-1, -1], [-1, 0], [-1, 1]], - create : function(imageWrapper, labelWrapper) { - var imageData = imageWrapper.data, - labelData = labelWrapper.data, - searchDirections = this.searchDirections, - width = imageWrapper.size.x, - pos; - - function trace(current, color, label, edgelabel) { - var i, - y, - x; - - for ( i = 0; i < 7; i++) { - y = current.cy + searchDirections[current.dir][0]; - x = current.cx + searchDirections[current.dir][1]; - pos = y * width + x; - if ((imageData[pos] === color) && ((labelData[pos] === 0) || (labelData[pos] === label))) { - labelData[pos] = label; - current.cy = y; - current.cx = x; - return true; - } else { - if (labelData[pos] === 0) { - labelData[pos] = edgelabel; - } - current.dir = (current.dir + 1) % 8; - } - } - return false; - } - - function vertex2D(x, y, dir) { - return { - dir : dir, - x : x, - y : y, - next : null, - prev : null - }; - } - - function contourTracing(sy, sx, label, color, edgelabel) { - var Fv = null, - Cv, - P, - ldir, - current = { - cx : sx, - cy : sy, - dir : 0 - }; - - if (trace(current, color, label, edgelabel)) { - Fv = vertex2D(sx, sy, current.dir); - Cv = Fv; - ldir = current.dir; - P = vertex2D(current.cx, current.cy, 0); - P.prev = Cv; - Cv.next = P; - P.next = null; - Cv = P; - do { - current.dir = (current.dir + 6) % 8; - trace(current, color, label, edgelabel); - if (ldir != current.dir) { - Cv.dir = current.dir; - P = vertex2D(current.cx, current.cy, 0); - P.prev = Cv; - Cv.next = P; - P.next = null; - Cv = P; - } else { - Cv.dir = ldir; - Cv.x = current.cx; - Cv.y = current.cy; - } - ldir = current.dir; - } while(current.cx != sx || current.cy != sy); - Fv.prev = Cv.prev; - Cv.prev.next = Fv; - } - return Fv; - } - - return { - trace : function(current, color, label, edgelabel) { - return trace(current, color, label, edgelabel); - }, - contourTracing : function(sy, sx, label, color, edgelabel) { - return contourTracing(sy, sx, label, color, edgelabel); - } - }; - } - }; - - return (Tracer); -}); - -/* jshint undef: true, unused: true, browser:true, devel: true */ -/* global define */ - -/** - * http://www.codeproject.com/Tips/407172/Connected-Component-Labeling-and-Vectorization - */ -define('rasterizer',["tracer"], function(Tracer) { - "use strict"; - - var Rasterizer = { - createContour2D : function() { - return { - dir : null, - index : null, - firstVertex : null, - insideContours : null, - nextpeer : null, - prevpeer : null - }; - }, - CONTOUR_DIR : { - CW_DIR : 0, - CCW_DIR : 1, - UNKNOWN_DIR : 2 - }, - DIR : { - OUTSIDE_EDGE : -32767, - INSIDE_EDGE : -32766 - }, - create : function(imageWrapper, labelWrapper) { - var imageData = imageWrapper.data, - labelData = labelWrapper.data, - width = imageWrapper.size.x, - height = imageWrapper.size.y, - tracer = Tracer.create(imageWrapper, labelWrapper); - - return { - rasterize : function(depthlabel) { - var color, - bc, - lc, - labelindex, - cx, - cy, - colorMap = [], - vertex, - p, - cc, - sc, - pos, - connectedCount = 0, - i; - - for ( i = 0; i < 400; i++) { - colorMap[i] = 0; - } - - colorMap[0] = imageData[0]; - cc = null; - for ( cy = 1; cy < height - 1; cy++) { - labelindex = 0; - bc = colorMap[0]; - for ( cx = 1; cx < width - 1; cx++) { - pos = cy * width + cx; - if (labelData[pos] === 0) { - color = imageData[pos]; - if (color !== bc) { - if (labelindex === 0) { - lc = connectedCount + 1; - colorMap[lc] = color; - bc = color; - vertex = tracer.contourTracing(cy, cx, lc, color, Rasterizer.DIR.OUTSIDE_EDGE); - if (vertex !== null) { - connectedCount++; - labelindex = lc; - p = Rasterizer.createContour2D(); - p.dir = Rasterizer.CONTOUR_DIR.CW_DIR; - p.index = labelindex; - p.firstVertex = vertex; - p.nextpeer = cc; - p.insideContours = null; - if (cc !== null) { - cc.prevpeer = p; - } - cc = p; - } - } else { - vertex = tracer.contourTracing(cy, cx, Rasterizer.DIR.INSIDE_EDGE, color, labelindex); - if (vertex !== null) { - p = Rasterizer.createContour2D(); - p.firstVertex = vertex; - p.insideContours = null; - if (depthlabel === 0) { - p.dir = Rasterizer.CONTOUR_DIR.CCW_DIR; - } else { - p.dir = Rasterizer.CONTOUR_DIR.CW_DIR; - } - p.index = depthlabel; - sc = cc; - while ((sc !== null) && sc.index !== labelindex) { - sc = sc.nextpeer; - } - if (sc !== null) { - p.nextpeer = sc.insideContours; - if (sc.insideContours !== null) { - sc.insideContours.prevpeer = p; - } - sc.insideContours = p; - } - } - } - } else { - labelData[pos] = labelindex; - } - } else if (labelData[pos] === Rasterizer.DIR.OUTSIDE_EDGE || labelData[pos] === Rasterizer.DIR.INSIDE_EDGE) { - labelindex = 0; - if (labelData[pos] === Rasterizer.DIR.INSIDE_EDGE) { - bc = imageData[pos]; - } else { - bc = colorMap[0]; - } - } else { - labelindex = labelData[pos]; - bc = colorMap[labelindex]; - } - } - } - sc = cc; - while (sc !== null) { - sc.index = depthlabel; - sc = sc.nextpeer; - } - return { - cc : cc, - count : connectedCount - }; - }, - debug: { - drawContour : function(canvas, firstContour) { - var ctx = canvas.getContext("2d"), - pq = firstContour, - iq, - q, - p; - - ctx.strokeStyle = "red"; - ctx.fillStyle = "red"; - ctx.lineWidth = 1; - - if (pq !== null) { - iq = pq.insideContours; - } else { - iq = null; - } - - while (pq !== null) { - if (iq !== null) { - q = iq; - iq = iq.nextpeer; - } else { - q = pq; - pq = pq.nextpeer; - if (pq !== null) { - iq = pq.insideContours; - } else { - iq = null; - } - } - - switch(q.dir) { - case Rasterizer.CONTOUR_DIR.CW_DIR: - ctx.strokeStyle = "red"; - break; - case Rasterizer.CONTOUR_DIR.CCW_DIR: - ctx.strokeStyle = "blue"; - break; - case Rasterizer.CONTOUR_DIR.UNKNOWN_DIR: - ctx.strokeStyle = "green"; - break; - } - - p = q.firstVertex; - ctx.beginPath(); - ctx.moveTo(p.x, p.y); - do { - p = p.next; - ctx.lineTo(p.x, p.y); - } while(p !== q.firstVertex); - ctx.stroke(); - } - } - } - }; - } - }; - - return (Rasterizer); -}); - -/* jshint undef: true, unused: true, browser:true, devel: true, -W041: false */ -/* global define */ - -define('skeletonizer',[],function() { - "use strict"; - - /* @preserve ASM BEGIN */ - function Skeletonizer(stdlib, foreign, buffer) { - "use asm"; - - var images = new stdlib.Uint8Array(buffer), - size = foreign.size | 0, - imul = stdlib.Math.imul; - - function erode(inImagePtr, outImagePtr) { - inImagePtr = inImagePtr | 0; - outImagePtr = outImagePtr | 0; - - var v = 0, - u = 0, - sum = 0, - yStart1 = 0, - yStart2 = 0, - xStart1 = 0, - xStart2 = 0, - offset = 0; - - for ( v = 1; (v | 0) < ((size - 1) | 0); v = (v + 1) | 0) { - offset = (offset + size) | 0; - for ( u = 1; (u | 0) < ((size - 1) | 0); u = (u + 1) | 0) { - yStart1 = (offset - size) | 0; - yStart2 = (offset + size) | 0; - xStart1 = (u - 1) | 0; - xStart2 = (u + 1) | 0; - sum = ((images[(inImagePtr + yStart1 + xStart1) | 0] | 0) + (images[(inImagePtr + yStart1 + xStart2) | 0] | 0) + (images[(inImagePtr + offset + u) | 0] | 0) + (images[(inImagePtr + yStart2 + xStart1) | 0] | 0) + (images[(inImagePtr + yStart2 + xStart2) | 0] | 0)) | 0; - if ((sum | 0) == (5 | 0)) { - images[(outImagePtr + offset + u) | 0] = 1; - } else { - images[(outImagePtr + offset + u) | 0] = 0; - } - } - } - return; - } - - function subtract(aImagePtr, bImagePtr, outImagePtr) { - aImagePtr = aImagePtr | 0; - bImagePtr = bImagePtr | 0; - outImagePtr = outImagePtr | 0; - - var length = 0; - - length = imul(size, size) | 0; - - while ((length | 0) > 0) { - length = (length - 1) | 0; - images[(outImagePtr + length) | 0] = ((images[(aImagePtr + length) | 0] | 0) - (images[(bImagePtr + length) | 0] | 0)) | 0; - } - } - - function bitwiseOr(aImagePtr, bImagePtr, outImagePtr) { - aImagePtr = aImagePtr | 0; - bImagePtr = bImagePtr | 0; - outImagePtr = outImagePtr | 0; - - var length = 0; - - length = imul(size, size) | 0; - - while ((length | 0) > 0) { - length = (length - 1) | 0; - images[(outImagePtr + length) | 0] = ((images[(aImagePtr + length) | 0] | 0) | (images[(bImagePtr + length) | 0] | 0)) | 0; - } - } - - function countNonZero(imagePtr) { - imagePtr = imagePtr | 0; - - var sum = 0, - length = 0; - - length = imul(size, size) | 0; - - while ((length | 0) > 0) { - length = (length - 1) | 0; - sum = ((sum | 0) + (images[(imagePtr + length) | 0] | 0)) | 0; - } - - return (sum | 0); - } - - function init(imagePtr, value) { - imagePtr = imagePtr | 0; - value = value | 0; - - var length = 0; - - length = imul(size, size) | 0; - - while ((length | 0) > 0) { - length = (length - 1) | 0; - images[(imagePtr + length) | 0] = value; - } - } - - function dilate(inImagePtr, outImagePtr) { - inImagePtr = inImagePtr | 0; - outImagePtr = outImagePtr | 0; - - var v = 0, - u = 0, - sum = 0, - yStart1 = 0, - yStart2 = 0, - xStart1 = 0, - xStart2 = 0, - offset = 0; - - for ( v = 1; (v | 0) < ((size - 1) | 0); v = (v + 1) | 0) { - offset = (offset + size) | 0; - for ( u = 1; (u | 0) < ((size - 1) | 0); u = (u + 1) | 0) { - yStart1 = (offset - size) | 0; - yStart2 = (offset + size) | 0; - xStart1 = (u - 1) | 0; - xStart2 = (u + 1) | 0; - sum = ((images[(inImagePtr + yStart1 + xStart1) | 0] | 0) + (images[(inImagePtr + yStart1 + xStart2) | 0] | 0) + (images[(inImagePtr + offset + u) | 0] | 0) + (images[(inImagePtr + yStart2 + xStart1) | 0] | 0) + (images[(inImagePtr + yStart2 + xStart2) | 0] | 0)) | 0; - if ((sum | 0) > (0 | 0)) { - images[(outImagePtr + offset + u) | 0] = 1; - } else { - images[(outImagePtr + offset + u) | 0] = 0; - } - } - } - return; - } - - function memcpy(srcImagePtr, dstImagePtr) { - srcImagePtr = srcImagePtr | 0; - dstImagePtr = dstImagePtr | 0; - - var length = 0; - - length = imul(size, size) | 0; - - while ((length | 0) > 0) { - length = (length - 1) | 0; - images[(dstImagePtr + length) | 0] = (images[(srcImagePtr + length) | 0] | 0); - } - } - - function zeroBorder(imagePtr) { - imagePtr = imagePtr | 0; - - var x = 0, - y = 0; - - for ( x = 0; (x | 0) < ((size - 1) | 0); x = (x + 1) | 0) { - images[(imagePtr + x) | 0] = 0; - images[(imagePtr + y) | 0] = 0; - y = ((y + size) - 1) | 0; - images[(imagePtr + y) | 0] = 0; - y = (y + 1) | 0; - } - for ( x = 0; (x | 0) < (size | 0); x = (x + 1) | 0) { - images[(imagePtr + y) | 0] = 0; - y = (y + 1) | 0; - } - } - - function skeletonize() { - var subImagePtr = 0, - erodedImagePtr = 0, - tempImagePtr = 0, - skelImagePtr = 0, - sum = 0, - done = 0; - - erodedImagePtr = imul(size, size) | 0; - tempImagePtr = (erodedImagePtr + erodedImagePtr) | 0; - skelImagePtr = (tempImagePtr + erodedImagePtr) | 0; - - // init skel-image - init(skelImagePtr, 0); - zeroBorder(subImagePtr); - - do { - erode(subImagePtr, erodedImagePtr); - dilate(erodedImagePtr, tempImagePtr); - subtract(subImagePtr, tempImagePtr, tempImagePtr); - bitwiseOr(skelImagePtr, tempImagePtr, skelImagePtr); - memcpy(erodedImagePtr, subImagePtr); - sum = countNonZero(subImagePtr) | 0; - done = ((sum | 0) == 0 | 0); - } while(!done); - } - - return { - skeletonize : skeletonize - }; - } - /* @preserve ASM END */ - - return Skeletonizer; -}); - -/* jshint undef: true, unused: true, browser:true, devel: true */ -/* global define */ - -define('image_debug',[],function() { - "use strict"; - - return { - drawRect: function(pos, size, ctx, style){ - ctx.strokeStyle = style.color; - ctx.fillStyle = style.color; - ctx.lineWidth = 1; - ctx.beginPath(); - ctx.strokeRect(pos.x, pos.y, size.x, size.y); - }, - drawPath: function(path, def, ctx, style) { - ctx.strokeStyle = style.color; - ctx.fillStyle = style.color; - ctx.lineWidth = style.lineWidth; - ctx.beginPath(); - ctx.moveTo(path[0][def.x], path[0][def.y]); - for (var j = 1; j < path.length; j++) { - ctx.lineTo(path[j][def.x], path[j][def.y]); - } - ctx.closePath(); - ctx.stroke(); - }, - drawImage: function(imageData, size, ctx) { - var canvasData = ctx.getImageData(0, 0, size.x, size.y), - data = canvasData.data, - imageDataPos = imageData.length, - canvasDataPos = data.length, - value; - - if (canvasDataPos/imageDataPos !== 4) { - return false; - } - while(imageDataPos--){ - value = imageData[imageDataPos]; - data[--canvasDataPos] = 255; - data[--canvasDataPos] = value; - data[--canvasDataPos] = value; - data[--canvasDataPos] = value; - } - ctx.putImageData(canvasData, 0, 0); - return true; - } - }; - -}); - -/* jshint undef: true, unused: true, browser:true, devel: true */ -/* global define */ - -define("barcode_locator", ["image_wrapper", "cv_utils", "rasterizer", "tracer", "skeletonizer", "array_helper", "image_debug", "gl-matrix"], -function(ImageWrapper, CVUtils, Rasterizer, Tracer, skeletonizer, ArrayHelper, ImageDebug, glMatrix) { - - var _config, - _currentImageWrapper, - _skelImageWrapper, - _subImageWrapper, - _labelImageWrapper, - _patchGrid, - _patchLabelGrid, - _imageToPatchGrid, - _binaryImageWrapper, - _patchSize, - _canvasContainer = { - ctx : { - binary : null - }, - dom : { - binary : null - } - }, - _numPatches = {x: 0, y: 0}, - _inputImageWrapper, - _skeletonizer, - vec2 = glMatrix.vec2, - mat2 = glMatrix.mat2, - self = this; - - function initBuffers() { - var skeletonImageData; - - if (_config.halfSample) { - _currentImageWrapper = new ImageWrapper({ - x : _inputImageWrapper.size.x / 2 | 0, - y : _inputImageWrapper.size.y / 2 | 0 - }); - } else { - _currentImageWrapper = _inputImageWrapper; - } - - _patchSize = CVUtils.calculatePatchSize(_config.patchSize, _currentImageWrapper.size); - - _numPatches.x = _currentImageWrapper.size.x / _patchSize.x | 0; - _numPatches.y = _currentImageWrapper.size.y / _patchSize.y | 0; - - _binaryImageWrapper = new ImageWrapper(_currentImageWrapper.size, undefined, Uint8Array, false); - - _labelImageWrapper = new ImageWrapper(_patchSize, undefined, Array, true); - - skeletonImageData = new ArrayBuffer(64*1024); - _subImageWrapper = new ImageWrapper(_patchSize, new Uint8Array(skeletonImageData, 0, _patchSize.x * _patchSize.y)); - _skelImageWrapper = new ImageWrapper(_patchSize, new Uint8Array(skeletonImageData, _patchSize.x * _patchSize.y * 3, _patchSize.x * _patchSize.y), undefined, true); - _skeletonizer = skeletonizer(self, { - size : _patchSize.x - }, skeletonImageData); - - _imageToPatchGrid = new ImageWrapper({ - x : (_currentImageWrapper.size.x / _subImageWrapper.size.x) | 0, - y : (_currentImageWrapper.size.y / _subImageWrapper.size.y) | 0 - }, undefined, Array, true); - _patchGrid = new ImageWrapper(_imageToPatchGrid.size, undefined, undefined, true); - _patchLabelGrid = new ImageWrapper(_imageToPatchGrid.size, undefined, Int32Array, true); - } - - function initCanvas() { - if (_config.useWorker || typeof document === 'undefined') { - return; - } - _canvasContainer.dom.binary = document.createElement("canvas"); - _canvasContainer.dom.binary.className = "binaryBuffer"; - if (_config.showCanvas === true) { - document.querySelector("#debug").appendChild(_canvasContainer.dom.binary); - } - _canvasContainer.ctx.binary = _canvasContainer.dom.binary.getContext("2d"); - _canvasContainer.dom.binary.width = _binaryImageWrapper.size.x; - _canvasContainer.dom.binary.height = _binaryImageWrapper.size.y; - } - - /** - * Creates a bounding box which encloses all the given patches - * @returns {Array} The minimal bounding box - */ - function boxFromPatches(patches) { - var overAvg, i, j, patch, transMat, minx = _binaryImageWrapper.size.x, miny = _binaryImageWrapper.size.y, maxx = -_binaryImageWrapper.size.x, maxy = -_binaryImageWrapper.size.y, box, scale; - - // draw all patches which are to be taken into consideration - overAvg = 0; - for ( i = 0; i < patches.length; i++) { - patch = patches[i]; - overAvg += patch.rad; - if (_config.showPatches) { - ImageDebug.drawRect(patch.pos, _subImageWrapper.size, _canvasContainer.ctx.binary, {color: "red"}); - } - } - - overAvg /= patches.length; - overAvg = (overAvg * 180 / Math.PI + 90) % 180 - 90; - if (overAvg < 0) { - overAvg += 180; - } - - overAvg = (180 - overAvg) * Math.PI / 180; - transMat = mat2.clone([Math.cos(overAvg), Math.sin(overAvg), -Math.sin(overAvg), Math.cos(overAvg)]); - - // iterate over patches and rotate by angle - for ( i = 0; i < patches.length; i++) { - patch = patches[i]; - for ( j = 0; j < 4; j++) { - vec2.transformMat2(patch.box[j], patch.box[j], transMat); - } - - if (_config.boxFromPatches.showTransformed) { - ImageDebug.drawPath(patch.box, {x: 0, y: 1}, _canvasContainer.ctx.binary, {color: '#99ff00', lineWidth: 2}); - } - } - - // find bounding box - for ( i = 0; i < patches.length; i++) { - patch = patches[i]; - for ( j = 0; j < 4; j++) { - if (patch.box[j][0] < minx) { - minx = patch.box[j][0]; - } - if (patch.box[j][0] > maxx) { - maxx = patch.box[j][0]; - } - if (patch.box[j][1] < miny) { - miny = patch.box[j][1]; - } - if (patch.box[j][1] > maxy) { - maxy = patch.box[j][1]; - } - } - } - - box = [[minx, miny], [maxx, miny], [maxx, maxy], [minx, maxy]]; - - if (_config.boxFromPatches.showTransformedBox) { - ImageDebug.drawPath(box, {x: 0, y: 1}, _canvasContainer.ctx.binary, {color: '#ff0000', lineWidth: 2}); - } - - scale = _config.halfSample ? 2 : 1; - // reverse rotation; - transMat = mat2.invert(transMat, transMat); - for ( j = 0; j < 4; j++) { - vec2.transformMat2(box[j], box[j], transMat); - } - - if (_config.boxFromPatches.showBB) { - ImageDebug.drawPath(box, {x: 0, y: 1}, _canvasContainer.ctx.binary, {color: '#ff0000', lineWidth: 2}); - } - - for ( j = 0; j < 4; j++) { - vec2.scale(box[j], box[j], scale); - } - - return box; - } - - /** - * Creates a binary image of the current image - */ - function binarizeImage() { - CVUtils.otsuThreshold(_currentImageWrapper, _binaryImageWrapper); - _binaryImageWrapper.zeroBorder(); - if (_config.showCanvas) { - _binaryImageWrapper.show(_canvasContainer.dom.binary, 255); - } - } - - /** - * Iterate over the entire image - * extract patches - */ - function findPatches() { - var i, - j, - x, - y, - moments, - patchesFound = [], - rasterizer, - rasterResult, - patch; - for ( i = 0; i < _numPatches.x; i++) { - for ( j = 0; j < _numPatches.y; j++) { - - x = _subImageWrapper.size.x * i; - y = _subImageWrapper.size.y * j; - - // seperate parts - skeletonize(x, y); - - // Rasterize, find individual bars - _skelImageWrapper.zeroBorder(); - ArrayHelper.init(_labelImageWrapper.data, 0); - rasterizer = Rasterizer.create(_skelImageWrapper, _labelImageWrapper); - rasterResult = rasterizer.rasterize(0); - - if (_config.showLabels) { - _labelImageWrapper.overlay(_canvasContainer.dom.binary, Math.floor(360 / rasterResult.count), {x : x, y : y}); - } - - // calculate moments from the skeletonized patch - moments = _labelImageWrapper.moments(rasterResult.count); - - // extract eligible patches - patchesFound = patchesFound.concat(describePatch(moments, [i, j], x, y)); - } - } - - if (_config.showFoundPatches) { - for ( i = 0; i < patchesFound.length; i++) { - patch = patchesFound[i]; - ImageDebug.drawRect(patch.pos, _subImageWrapper.size, _canvasContainer.ctx.binary, {color: "#99ff00", lineWidth: 2}); - } - } - - return patchesFound; - } - - /** - * Finds those connected areas which contain at least 6 patches - * and returns them ordered DESC by the number of contained patches - * @param {Number} maxLabel - */ - function findBiggestConnectedAreas(maxLabel){ - var i, - sum, - labelHist = [], - topLabels = []; - - for ( i = 0; i < maxLabel; i++) { - labelHist.push(0); - } - sum = _patchLabelGrid.data.length; - while (sum--) { - if (_patchLabelGrid.data[sum] > 0) { - labelHist[_patchLabelGrid.data[sum] - 1]++; - } - } - - labelHist = labelHist.map(function(val, idx) { - return { - val : val, - label : idx + 1 - }; - }); - - labelHist.sort(function(a, b) { - return b.val - a.val; - }); - - // extract top areas with at least 6 patches present - topLabels = labelHist.filter(function(el) { - return el.val >= 5; - }); - - return topLabels; - } - - /** - * - */ - function findBoxes(topLabels, maxLabel) { - var i, - j, - sum, - patches = [], - patch, - box, - boxes = [], - hsv = [0, 1, 1], - rgb = [0, 0, 0]; - - for ( i = 0; i < topLabels.length; i++) { - sum = _patchLabelGrid.data.length; - patches.length = 0; - while (sum--) { - if (_patchLabelGrid.data[sum] === topLabels[i].label) { - patch = _imageToPatchGrid.data[sum]; - patches.push(patch); - } - } - box = boxFromPatches(patches); - if (box) { - boxes.push(box); - - // draw patch-labels if requested - if (_config.showRemainingPatchLabels) { - for ( j = 0; j < patches.length; j++) { - patch = patches[j]; - hsv[0] = (topLabels[i].label / (maxLabel + 1)) * 360; - CVUtils.hsv2rgb(hsv, rgb); - ImageDebug.drawRect(patch.pos, _subImageWrapper.size, _canvasContainer.ctx.binary, {color: "rgb(" + rgb.join(",") + ")", lineWidth: 2}); - } - } - } - } - return boxes; - } - - /** - * Find similar moments (via cluster) - * @param {Object} moments - */ - function similarMoments(moments) { - var clusters = CVUtils.cluster(moments, 0.90); - var topCluster = CVUtils.topGeneric(clusters, 1, function(e) { - return e.getPoints().length; - }); - var points = [], result = []; - if (topCluster.length === 1) { - points = topCluster[0].item.getPoints(); - for (var i = 0; i < points.length; i++) { - result.push(points[i].point); - } - } - return result; - } - - function skeletonize(x, y) { - _binaryImageWrapper.subImageAsCopy(_subImageWrapper, CVUtils.imageRef(x, y)); - _skeletonizer.skeletonize(); - - // Show skeleton if requested - if (_config.showSkeleton) { - _skelImageWrapper.overlay(_canvasContainer.dom.binary, 360, CVUtils.imageRef(x, y)); - } - } - - /** - * Extracts and describes those patches which seem to contain a barcode pattern - * @param {Array} moments - * @param {Object} patchPos, - * @param {Number} x - * @param {Number} y - * @returns {Array} list of patches - */ - function describePatch(moments, patchPos, x, y) { - var k, - avg, - sum = 0, - eligibleMoments = [], - matchingMoments, - patch, - patchesFound = [], - minComponentWeight = Math.ceil(_patchSize.x/3); - - if (moments.length >= 2) { - // only collect moments which's area covers at least minComponentWeight pixels. - for ( k = 0; k < moments.length; k++) { - if (moments[k].m00 > minComponentWeight) { - eligibleMoments.push(moments[k]); - } - } - - // if at least 2 moments are found which have at least minComponentWeights covered - if (eligibleMoments.length >= 2) { - sum = eligibleMoments.length; - matchingMoments = similarMoments(eligibleMoments); - avg = 0; - // determine the similarity of the moments - for ( k = 0; k < matchingMoments.length; k++) { - avg += matchingMoments[k].rad; - } - - // Only two of the moments are allowed not to fit into the equation - // add the patch to the set - if (matchingMoments.length > 1 && matchingMoments.length >= (eligibleMoments.length / 4) * 3 && matchingMoments.length > moments.length / 4) { - avg /= matchingMoments.length; - patch = { - index : patchPos[1] * _numPatches.x + patchPos[0], - pos : { - x : x, - y : y - }, - box : [vec2.clone([x, y]), vec2.clone([x + _subImageWrapper.size.x, y]), vec2.clone([x + _subImageWrapper.size.x, y + _subImageWrapper.size.y]), vec2.clone([x, y + _subImageWrapper.size.y])], - moments : matchingMoments, - rad : avg, - vec : vec2.clone([Math.cos(avg), Math.sin(avg)]) - }; - patchesFound.push(patch); - } - } - } - return patchesFound; - } - - /** - * finds patches which are connected and share the same orientation - * @param {Object} patchesFound - */ - function rasterizeAngularSimilarity(patchesFound) { - var label = 0, - threshold = 0.95, - currIdx = 0, - j, - patch, - hsv = [0, 1, 1], - rgb = [0, 0, 0]; - - function notYetProcessed() { - var i; - for ( i = 0; i < _patchLabelGrid.data.length; i++) { - if (_patchLabelGrid.data[i] === 0 && _patchGrid.data[i] === 1) { - return i; - } - } - return _patchLabelGrid.length; - } - - function trace(currentIdx) { - var x, y, currentPatch, patch, idx, dir, current = { - x : currentIdx % _patchLabelGrid.size.x, - y : (currentIdx / _patchLabelGrid.size.x) | 0 - }, similarity; - - if (currentIdx < _patchLabelGrid.data.length) { - currentPatch = _imageToPatchGrid.data[currentIdx]; - // assign label - _patchLabelGrid.data[currentIdx] = label; - for ( dir = 0; dir < Tracer.searchDirections.length; dir++) { - y = current.y + Tracer.searchDirections[dir][0]; - x = current.x + Tracer.searchDirections[dir][1]; - idx = y * _patchLabelGrid.size.x + x; - - // continue if patch empty - if (_patchGrid.data[idx] === 0) { - _patchLabelGrid.data[idx] = Number.MAX_VALUE; - continue; - } - - patch = _imageToPatchGrid.data[idx]; - if (_patchLabelGrid.data[idx] === 0) { - similarity = Math.abs(vec2.dot(patch.vec, currentPatch.vec)); - if (similarity > threshold) { - trace(idx); - } - } - } - } - } - - // prepare for finding the right patches - ArrayHelper.init(_patchGrid.data, 0); - ArrayHelper.init(_patchLabelGrid.data, 0); - ArrayHelper.init(_imageToPatchGrid.data, null); - - for ( j = 0; j < patchesFound.length; j++) { - patch = patchesFound[j]; - _imageToPatchGrid.data[patch.index] = patch; - _patchGrid.data[patch.index] = 1; - } - - // rasterize the patches found to determine area - _patchGrid.zeroBorder(); - - while (( currIdx = notYetProcessed()) < _patchLabelGrid.data.length) { - label++; - trace(currIdx); - } - - // draw patch-labels if requested - if (_config.showPatchLabels) { - for ( j = 0; j < _patchLabelGrid.data.length; j++) { - if (_patchLabelGrid.data[j] > 0 && _patchLabelGrid.data[j] <= label) { - patch = _imageToPatchGrid.data[j]; - hsv[0] = (_patchLabelGrid.data[j] / (label + 1)) * 360; - CVUtils.hsv2rgb(hsv, rgb); - ImageDebug.drawRect(patch.pos, _subImageWrapper.size, _canvasContainer.ctx.binary, {color: "rgb(" + rgb.join(",") + ")", lineWidth: 2}); - } - } - } - - return label; - } - - return { - init : function(inputImageWrapper, config) { - _config = config; - _inputImageWrapper = inputImageWrapper; - - initBuffers(); - initCanvas(); - }, - - locate : function() { - var patchesFound, - topLabels, - boxes; - - if (_config.halfSample) { - CVUtils.halfSample(_inputImageWrapper, _currentImageWrapper); - } - - binarizeImage(); - patchesFound = findPatches(); - // return unless 5% or more patches are found - if (patchesFound.length < _numPatches.x * _numPatches.y * 0.05) { - return null; - } - - // rasterrize area by comparing angular similarity; - var maxLabel = rasterizeAngularSimilarity(patchesFound); - if (maxLabel < 1) { - return null; - } - - // search for area with the most patches (biggest connected area) - topLabels = findBiggestConnectedAreas(maxLabel); - if (topLabels.length === 0) { - return null; - } - - boxes = findBoxes(topLabels, maxLabel); - return boxes; - }, - - checkImageConstraints: function(inputStream, config) { - var patchSize, - width = inputStream.getWidth(), - height = inputStream.getHeight(), - halfSample = config.halfSample ? 0.5 : 1, - size, - area; - - // calculate width and height based on area - if (inputStream.getConfig().area) { - area = CVUtils.computeImageArea(width, height, inputStream.getConfig().area); - inputStream.setTopRight({x: area.sx, y: area.sy}); - inputStream.setCanvasSize({x: width, y: height}); - width = area.sw; - height = area.sh; - } - - size = { - x: Math.floor(width * halfSample), - y: Math.floor(height * halfSample) - }; - - patchSize = CVUtils.calculatePatchSize(config.patchSize, size); - console.log("Patch-Size: " + JSON.stringify(patchSize)); - - inputStream.setWidth(Math.floor(Math.floor(size.x/patchSize.x)*(1/halfSample)*patchSize.x)); - inputStream.setHeight(Math.floor(Math.floor(size.y/patchSize.y)*(1/halfSample)*patchSize.y)); - - if ((inputStream.getWidth() % patchSize.x) === 0 && (inputStream.getHeight() % patchSize.y) === 0) { - return true; - } - - throw new Error("Image dimensions do not comply with the current settings: Width (" + - width + " )and height (" + height + - ") must a multiple of " + patchSize.x); - } - }; -}); - - -/* jshint undef: true, unused: true, browser:true, devel: true */ -/* global define */ - -define('bresenham',["cv_utils", "image_wrapper"], function(CVUtils, ImageWrapper) { - "use strict"; - var Bresenham = {}; - - var Slope = { - DIR : { - UP : 1, - DOWN : -1 - } - }; - /** - * Scans a line of the given image from point p1 to p2 and returns a result object containing - * gray-scale values (0-255) of the underlying pixels in addition to the min - * and max values. - * @param {Object} imageWrapper - * @param {Object} p1 The start point {x,y} - * @param {Object} p2 The end point {x,y} - * @returns {line, min, max} - */ - Bresenham.getBarcodeLine = function(imageWrapper, p1, p2) { - var x0 = p1.x | 0, - y0 = p1.y | 0, - x1 = p2.x | 0, - y1 = p2.y | 0, - steep = Math.abs(y1 - y0) > Math.abs(x1 - x0), - deltax, - deltay, - error, - ystep, - y, - tmp, - x, - line = [], - imageData = imageWrapper.data, - width = imageWrapper.size.x, - sum = 0, - val, - min = 255, - max = 0; - - function read(a, b) { - val = imageData[b * width + a]; - sum += val; - min = val < min ? val : min; - max = val > max ? val : max; - line.push(val); - } - - if (steep) { - tmp = x0; - x0 = y0; - y0 = tmp; - - tmp = x1; - x1 = y1; - y1 = tmp; - } - if (x0 > x1) { - tmp = x0; - x0 = x1; - x1 = tmp; - - tmp = y0; - y0 = y1; - y1 = tmp; - } - deltax = x1 - x0; - deltay = Math.abs(y1 - y0); - error = (deltax / 2) | 0; - y = y0; - ystep = y0 < y1 ? 1 : -1; - for ( x = x0; x < x1; x++) { - if(steep){ - read(y, x); - } else { - read(x, y); - } - error = error - deltay; - if (error < 0) { - y = y + ystep; - error = error + deltax; - } - } - - return { - line : line, - min : min, - max : max - }; - }; - - Bresenham.toOtsuBinaryLine = function(result) { - var line = result.line, - image = new ImageWrapper({x: line.length - 1, y: 1}, line), - threshold = CVUtils.determineOtsuThreshold(image, 5); - - line = CVUtils.sharpenLine(line); - CVUtils.thresholdImage(image, threshold); - - return { - line: line, - threshold: threshold - }; - }; - - /** - * Converts the result from getBarcodeLine into a binary representation - * also considering the frequency and slope of the signal for more robust results - * @param {Object} result {line, min, max} - */ - Bresenham.toBinaryLine = function(result) { - - var min = result.min, - max = result.max, - line = result.line, - slope, - slope2, - center = min + (max - min) / 2, - extrema = [], - currentDir, - dir, - threshold = (max - min) / 12, - rThreshold = -threshold, - i, - j; - - // 1. find extrema - currentDir = line[0] > center ? Slope.DIR.UP : Slope.DIR.DOWN; - extrema.push({ - pos : 0, - val : line[0] - }); - for ( i = 0; i < line.length - 2; i++) { - slope = (line[i + 1] - line[i]); - slope2 = (line[i + 2] - line[i + 1]); - if ((slope + slope2) < rThreshold && line[i + 1] < (center*1.5)) { - dir = Slope.DIR.DOWN; - } else if ((slope + slope2) > threshold && line[i + 1] > (center*0.5)) { - dir = Slope.DIR.UP; - } else { - dir = currentDir; - } - - if (currentDir !== dir) { - extrema.push({ - pos : i, - val : line[i] - }); - currentDir = dir; - } - } - extrema.push({ - pos : line.length, - val : line[line.length - 1] - }); - - for ( j = extrema[0].pos; j < extrema[1].pos; j++) { - line[j] = line[j] > center ? 0 : 1; - } - - // iterate over extrema and convert to binary based on avg between minmax - for ( i = 1; i < extrema.length - 1; i++) { - if (extrema[i + 1].val > extrema[i].val) { - threshold = (extrema[i].val + ((extrema[i + 1].val - extrema[i].val) / 3) * 2) | 0; - } else { - threshold = (extrema[i + 1].val + ((extrema[i].val - extrema[i + 1].val) / 3)) | 0; - } - - for ( j = extrema[i].pos; j < extrema[i + 1].pos; j++) { - line[j] = line[j] > threshold ? 0 : 1; - } - } - - return { - line : line, - threshold : threshold - }; - }; - - /** - * Used for development only - */ - Bresenham.debug = { - printFrequency: function(line, canvas) { - var i, - ctx = canvas.getContext("2d"); - canvas.width = line.length; - canvas.height = 256; - - ctx.beginPath(); - ctx.strokeStyle = "blue"; - for ( i = 0; i < line.length; i++) { - ctx.moveTo(i, 255); - ctx.lineTo(i, 255 - line[i]); - } - ctx.stroke(); - ctx.closePath(); - }, - - printPattern: function(line, canvas) { - var ctx = canvas.getContext("2d"), i; - - canvas.width = line.length; - ctx.fillColor = "black"; - for ( i = 0; i < line.length; i++) { - if (line[i] === 1) { - ctx.fillRect(i, 0, 1, 100); - } - } - } - }; - - return (Bresenham); -}); -/* jshint undef: true, unused: true, browser:true, devel: true */ -/* global define */ - -define( - 'barcode_reader',[],function() { - "use strict"; - - function BarcodeReader(config) { - this._row = []; - this.config = config || {}; - return this; - } - - BarcodeReader.prototype._nextUnset = function(line, start) { - var i; - - if (start === undefined) { - start = 0; - } - for (i = start; i < line.length; i++) { - if (!line[i]) { - return i; - } - } - return line.length; - }; - - BarcodeReader.prototype._matchPattern = function(counter, code) { - var i, - error = 0, - singleError = 0, - modulo = this.MODULO, - maxSingleError = this.SINGLE_CODE_ERROR || 1; - - for (i = 0; i < counter.length; i++) { - singleError = Math.abs(code[i] - counter[i]); - if (singleError > maxSingleError) { - return Number.MAX_VALUE; - } - error += singleError; - } - return error/modulo; - }; - - BarcodeReader.prototype._nextSet = function(line, offset) { - var i; - - offset = offset || 0; - for (i = offset; i < line.length; i++) { - if (line[i]) { - return i; - } - } - return line.length; - }; - - BarcodeReader.prototype._normalize = function(counter, modulo) { - var i, - self = this, - sum = 0, - ratio, - numOnes = 0, - normalized = [], - norm = 0; - - if (!modulo) { - modulo = self.MODULO; - } - for (i = 0; i < counter.length; i++) { - if (counter[i] === 1) { - numOnes++; - } else { - sum += counter[i]; - } - } - ratio = sum / (modulo - numOnes); - if (ratio > 1.0) { - for (i = 0; i < counter.length; i++) { - norm = counter[i] === 1 ? counter[i] : counter[i] / ratio; - normalized.push(norm); - } - } else { - ratio = (sum + numOnes)/modulo; - for (i = 0; i < counter.length; i++) { - norm = counter[i] / ratio; - normalized.push(norm); - } - } - return normalized; - }; - - BarcodeReader.prototype._matchTrace = function(cmpCounter, epsilon) { - var counter = [], - i, - self = this, - offset = self._nextSet(self._row), - isWhite = !self._row[offset], - counterPos = 0, - bestMatch = { - error : Number.MAX_VALUE, - code : -1, - start : 0 - }, - error; - - if (cmpCounter) { - for ( i = 0; i < cmpCounter.length; i++) { - counter.push(0); - } - for ( i = offset; i < self._row.length; i++) { - if (self._row[i] ^ isWhite) { - counter[counterPos]++; - } else { - if (counterPos === counter.length - 1) { - error = self._matchPattern(counter, cmpCounter); - - if (error < epsilon) { - bestMatch.start = i - offset; - bestMatch.end = i; - bestMatch.counter = counter; - return bestMatch; - } else { - return null; - } - } else { - counterPos++; - } - counter[counterPos] = 1; - isWhite = !isWhite; - } - } - } else { - counter.push(0); - for ( i = offset; i < self._row.length; i++) { - if (self._row[i] ^ isWhite) { - counter[counterPos]++; - } else { - counterPos++; - counter.push(0); - counter[counterPos] = 1; - isWhite = !isWhite; - } - } - } - - // if cmpCounter was not given - bestMatch.start = offset; - bestMatch.end = self._row.length - 1; - bestMatch.counter = counter; - return bestMatch; - }; - - BarcodeReader.prototype.decodePattern = function(pattern) { - var self = this, - result; - - self._row = pattern; - result = self._decode(); - if (result === null) { - self._row.reverse(); - result = self._decode(); - if (result) { - result.direction = BarcodeReader.DIRECTION.REVERSE; - result.start = self._row.length - result.start; - result.end = self._row.length - result.end; - } - } else { - result.direction = BarcodeReader.DIRECTION.FORWARD; - } - if (result) { - result.format = self.FORMAT; - } - return result; - }; - - BarcodeReader.prototype._matchRange = function(start, end, value) { - var i; - - start = start < 0 ? 0 : start; - for (i = start; i < end; i++) { - if (this._row[i] !== value) { - return false; - } - } - return true; - }; - - BarcodeReader.prototype._fillCounters = function(offset, end, isWhite) { - var self = this, - counterPos = 0, - i, - counters = []; - - isWhite = (typeof isWhite !== 'undefined') ? isWhite : true; - offset = (typeof offset !== 'undefined') ? offset : self._nextUnset(self._row); - end = end || self._row.length; - - counters[counterPos] = 0; - for (i = offset; i < end; i++) { - if (self._row[i] ^ isWhite) { - counters[counterPos]++; - } else { - counterPos++; - counters[counterPos] = 1; - isWhite = !isWhite; - } - } - return counters; - }; - - Object.defineProperty(BarcodeReader.prototype, "FORMAT", { - value: 'unknown', - writeable: false - }); - - BarcodeReader.DIRECTION = { - FORWARD : 1, - REVERSE : -1 - }; - - BarcodeReader.Exception = { - StartNotFoundException : "Start-Info was not found!", - CodeNotFoundException : "Code could not be found!", - PatternNotFoundException : "Pattern could not be found!" - }; - - BarcodeReader.CONFIG_KEYS = {}; - - return (BarcodeReader); - } -); - -/* jshint undef: true, unused: true, browser:true, devel: true */ -/* global define */ - -define( - 'code_128_reader',[ - "./barcode_reader" - ], - function(BarcodeReader) { - "use strict"; - - function Code128Reader() { - BarcodeReader.call(this); - } - - var properties = { - CODE_SHIFT : {value: 98}, - CODE_C : {value: 99}, - CODE_B : {value: 100}, - CODE_A : {value: 101}, - START_CODE_A : {value: 103}, - START_CODE_B : {value: 104}, - START_CODE_C : {value: 105}, - STOP_CODE : {value: 106}, - MODULO : {value: 11}, - CODE_PATTERN : {value: [ - [2, 1, 2, 2, 2, 2], - [2, 2, 2, 1, 2, 2], - [2, 2, 2, 2, 2, 1], - [1, 2, 1, 2, 2, 3], - [1, 2, 1, 3, 2, 2], - [1, 3, 1, 2, 2, 2], - [1, 2, 2, 2, 1, 3], - [1, 2, 2, 3, 1, 2], - [1, 3, 2, 2, 1, 2], - [2, 2, 1, 2, 1, 3], - [2, 2, 1, 3, 1, 2], - [2, 3, 1, 2, 1, 2], - [1, 1, 2, 2, 3, 2], - [1, 2, 2, 1, 3, 2], - [1, 2, 2, 2, 3, 1], - [1, 1, 3, 2, 2, 2], - [1, 2, 3, 1, 2, 2], - [1, 2, 3, 2, 2, 1], - [2, 2, 3, 2, 1, 1], - [2, 2, 1, 1, 3, 2], - [2, 2, 1, 2, 3, 1], - [2, 1, 3, 2, 1, 2], - [2, 2, 3, 1, 1, 2], - [3, 1, 2, 1, 3, 1], - [3, 1, 1, 2, 2, 2], - [3, 2, 1, 1, 2, 2], - [3, 2, 1, 2, 2, 1], - [3, 1, 2, 2, 1, 2], - [3, 2, 2, 1, 1, 2], - [3, 2, 2, 2, 1, 1], - [2, 1, 2, 1, 2, 3], - [2, 1, 2, 3, 2, 1], - [2, 3, 2, 1, 2, 1], - [1, 1, 1, 3, 2, 3], - [1, 3, 1, 1, 2, 3], - [1, 3, 1, 3, 2, 1], - [1, 1, 2, 3, 1, 3], - [1, 3, 2, 1, 1, 3], - [1, 3, 2, 3, 1, 1], - [2, 1, 1, 3, 1, 3], - [2, 3, 1, 1, 1, 3], - [2, 3, 1, 3, 1, 1], - [1, 1, 2, 1, 3, 3], - [1, 1, 2, 3, 3, 1], - [1, 3, 2, 1, 3, 1], - [1, 1, 3, 1, 2, 3], - [1, 1, 3, 3, 2, 1], - [1, 3, 3, 1, 2, 1], - [3, 1, 3, 1, 2, 1], - [2, 1, 1, 3, 3, 1], - [2, 3, 1, 1, 3, 1], - [2, 1, 3, 1, 1, 3], - [2, 1, 3, 3, 1, 1], - [2, 1, 3, 1, 3, 1], - [3, 1, 1, 1, 2, 3], - [3, 1, 1, 3, 2, 1], - [3, 3, 1, 1, 2, 1], - [3, 1, 2, 1, 1, 3], - [3, 1, 2, 3, 1, 1], - [3, 3, 2, 1, 1, 1], - [3, 1, 4, 1, 1, 1], - [2, 2, 1, 4, 1, 1], - [4, 3, 1, 1, 1, 1], - [1, 1, 1, 2, 2, 4], - [1, 1, 1, 4, 2, 2], - [1, 2, 1, 1, 2, 4], - [1, 2, 1, 4, 2, 1], - [1, 4, 1, 1, 2, 2], - [1, 4, 1, 2, 2, 1], - [1, 1, 2, 2, 1, 4], - [1, 1, 2, 4, 1, 2], - [1, 2, 2, 1, 1, 4], - [1, 2, 2, 4, 1, 1], - [1, 4, 2, 1, 1, 2], - [1, 4, 2, 2, 1, 1], - [2, 4, 1, 2, 1, 1], - [2, 2, 1, 1, 1, 4], - [4, 1, 3, 1, 1, 1], - [2, 4, 1, 1, 1, 2], - [1, 3, 4, 1, 1, 1], - [1, 1, 1, 2, 4, 2], - [1, 2, 1, 1, 4, 2], - [1, 2, 1, 2, 4, 1], - [1, 1, 4, 2, 1, 2], - [1, 2, 4, 1, 1, 2], - [1, 2, 4, 2, 1, 1], - [4, 1, 1, 2, 1, 2], - [4, 2, 1, 1, 1, 2], - [4, 2, 1, 2, 1, 1], - [2, 1, 2, 1, 4, 1], - [2, 1, 4, 1, 2, 1], - [4, 1, 2, 1, 2, 1], - [1, 1, 1, 1, 4, 3], - [1, 1, 1, 3, 4, 1], - [1, 3, 1, 1, 4, 1], - [1, 1, 4, 1, 1, 3], - [1, 1, 4, 3, 1, 1], - [4, 1, 1, 1, 1, 3], - [4, 1, 1, 3, 1, 1], - [1, 1, 3, 1, 4, 1], - [1, 1, 4, 1, 3, 1], - [3, 1, 1, 1, 4, 1], - [4, 1, 1, 1, 3, 1], - [2, 1, 1, 4, 1, 2], - [2, 1, 1, 2, 1, 4], - [2, 1, 1, 2, 3, 2], - [2, 3, 3, 1, 1, 1, 2] - ]}, - SINGLE_CODE_ERROR: {value: 1}, - AVG_CODE_ERROR: {value: 0.5}, - FORMAT: {value: "code_128", writeable: false} - }; - - Code128Reader.prototype = Object.create(BarcodeReader.prototype, properties); - Code128Reader.prototype.constructor = Code128Reader; - - Code128Reader.prototype._decodeCode = function(start) { - var counter = [0, 0, 0, 0, 0, 0], - i, - self = this, - offset = start, - isWhite = !self._row[offset], - counterPos = 0, - bestMatch = { - error : Number.MAX_VALUE, - code : -1, - start : start, - end : start - }, - code, - error, - normalized; - - for ( i = offset; i < self._row.length; i++) { - if (self._row[i] ^ isWhite) { - counter[counterPos]++; - } else { - if (counterPos === counter.length - 1) { - normalized = self._normalize(counter); - if (normalized) { - for (code = 0; code < self.CODE_PATTERN.length; code++) { - error = self._matchPattern(normalized, self.CODE_PATTERN[code]); - if (error < bestMatch.error) { - bestMatch.code = code; - bestMatch.error = error; - } - } - bestMatch.end = i; - return bestMatch; - } - } else { - counterPos++; - } - counter[counterPos] = 1; - isWhite = !isWhite; - } - } - return null; - }; - - Code128Reader.prototype._findStart = function() { - var counter = [0, 0, 0, 0, 0, 0], - i, - self = this, - offset = self._nextSet(self._row), - isWhite = false, - counterPos = 0, - bestMatch = { - error : Number.MAX_VALUE, - code : -1, - start : 0, - end : 0 - }, - code, - error, - j, - sum, - normalized; - - for ( i = offset; i < self._row.length; i++) { - if (self._row[i] ^ isWhite) { - counter[counterPos]++; - } else { - if (counterPos === counter.length - 1) { - sum = 0; - for ( j = 0; j < counter.length; j++) { - sum += counter[j]; - } - normalized = self._normalize(counter); - if (normalized) { - for (code = self.START_CODE_A; code <= self.START_CODE_C; code++) { - error = self._matchPattern(normalized, self.CODE_PATTERN[code]); - if (error < bestMatch.error) { - bestMatch.code = code; - bestMatch.error = error; - } - } - if (bestMatch.error < self.AVG_CODE_ERROR) { - bestMatch.start = i - sum; - bestMatch.end = i; - return bestMatch; - } - } - - for ( j = 0; j < 4; j++) { - counter[j] = counter[j + 2]; - } - counter[4] = 0; - counter[5] = 0; - counterPos--; - } else { - counterPos++; - } - counter[counterPos] = 1; - isWhite = !isWhite; - } - } - return null; - }; - - Code128Reader.prototype._decode = function() { - var self = this, - startInfo = self._findStart(), - code = null, - done = false, - result = [], - multiplier = 0, - checksum = 0, - codeset, - rawResult = [], - decodedCodes = [], - shiftNext = false, - unshift, - lastCharacterWasPrintable; - - if (startInfo === null) { - return null; - } - code = { - code : startInfo.code, - start : startInfo.start, - end : startInfo.end - }; - decodedCodes.push(code); - checksum = code.code; - switch(code.code) { - case self.START_CODE_A: - codeset = self.CODE_A; - break; - case self.START_CODE_B: - codeset = self.CODE_B; - break; - case self.START_CODE_C: - codeset = self.CODE_C; - break; - default: - return null; - } - - while (!done) { - unshift = shiftNext; - shiftNext = false; - code = self._decodeCode(code.end); - if (code !== null) { - if (code.code !== self.STOP_CODE) { - rawResult.push(code.code); - multiplier++; - checksum += multiplier * code.code; - } - decodedCodes.push(code); - - switch(codeset) { - case self.CODE_A: - if (code.code < 64) { - result.push(String.fromCharCode(32 + code.code)); - } else if (code.code < 96) { - result.push(String.fromCharCode(code.code - 64)); - } else { - switch (code.code) { - case self.CODE_SHIFT: - shiftNext = true; - codeset = self.CODE_B; - break; - case self.CODE_B: - codeset = self.CODE_B; - break; - case self.CODE_C: - codeset = self.CODE_C; - break; - case self.STOP_CODE: - done = true; - break; - } - } - break; - case self.CODE_B: - if (code.code < 96) { - result.push(String.fromCharCode(32 + code.code)); - } else { - if (code.code != self.STOP_CODE) { - lastCharacterWasPrintable = false; - } - switch (code.code) { - case self.CODE_SHIFT: - shiftNext = true; - codeset = self.CODE_A; - break; - case self.CODE_A: - codeset = self.CODE_A; - break; - case self.CODE_C: - codeset = self.CODE_C; - break; - case self.STOP_CODE: - done = true; - break; - } - } - break; - case self.CODE_C: - if (code.code < 100) { - result.push(code.code < 10 ? "0" + code.code : code.code); - } - switch (code.code) { - case self.CODE_A: - codeset = self.CODE_A; - break; - case self.CODE_B: - codeset = self.CODE_B; - break; - case self.STOP_CODE: - done = true; - break; - } - break; - } - } else { - done = true; - } - if (unshift) { - codeset = codeset == self.CODE_A ? self.CODE_B : self.CODE_A; - } - } - - if (code === null) { - return null; - } - - // find end bar - code.end = self._nextUnset(self._row, code.end); - if(!self._verifyTrailingWhitespace(code)){ - return null; - } - - // checksum - // Does not work correctly yet!!! startcode - endcode? - checksum -= multiplier * rawResult[rawResult.length - 1]; - if (checksum % 103 != rawResult[rawResult.length - 1]) { - return null; - } - - if (!result.length) { - return null; - } - - // remove last code from result (checksum) - result.splice(result.length - 1, 1); - - - - return { - code : result.join(""), - start : startInfo.start, - end : code.end, - codeset : codeset, - startInfo : startInfo, - decodedCodes : decodedCodes, - endInfo : code - }; - }; - - - BarcodeReader.prototype._verifyTrailingWhitespace = function(endInfo) { - var self = this, - trailingWhitespaceEnd; - - trailingWhitespaceEnd = endInfo.end + ((endInfo.end - endInfo.start) / 2); - if (trailingWhitespaceEnd < self._row.length) { - if (self._matchRange(endInfo.end, trailingWhitespaceEnd, 0)) { - return endInfo; - } - } - return null; - }; - - return (Code128Reader); - } -); -/* jshint undef: true, unused: true, browser:true, devel: true */ -/* global define */ - -define( - 'ean_reader',[ - "./barcode_reader" - ], - function(BarcodeReader) { - "use strict"; - - function EANReader(opts) { - BarcodeReader.call(this, opts); - } - - var properties = { - CODE_L_START : {value: 0}, - MODULO : {value: 7}, - CODE_G_START : {value: 10}, - START_PATTERN : {value: [1 / 3 * 7, 1 / 3 * 7, 1 / 3 * 7]}, - STOP_PATTERN : {value: [1 / 3 * 7, 1 / 3 * 7, 1 / 3 * 7]}, - MIDDLE_PATTERN : {value: [1 / 5 * 7, 1 / 5 * 7, 1 / 5 * 7, 1 / 5 * 7, 1 / 5 * 7]}, - CODE_PATTERN : {value: [ - [3, 2, 1, 1], - [2, 2, 2, 1], - [2, 1, 2, 2], - [1, 4, 1, 1], - [1, 1, 3, 2], - [1, 2, 3, 1], - [1, 1, 1, 4], - [1, 3, 1, 2], - [1, 2, 1, 3], - [3, 1, 1, 2], - [1, 1, 2, 3], - [1, 2, 2, 2], - [2, 2, 1, 2], - [1, 1, 4, 1], - [2, 3, 1, 1], - [1, 3, 2, 1], - [4, 1, 1, 1], - [2, 1, 3, 1], - [3, 1, 2, 1], - [2, 1, 1, 3] - ]}, - CODE_FREQUENCY : {value: [0, 11, 13, 14, 19, 25, 28, 21, 22, 26]}, - SINGLE_CODE_ERROR: {value: 0.67}, - AVG_CODE_ERROR: {value: 0.27}, - FORMAT: {value: "ean_13", writeable: false} - }; - - EANReader.prototype = Object.create(BarcodeReader.prototype, properties); - EANReader.prototype.constructor = EANReader; - - EANReader.prototype._decodeCode = function(start, coderange) { - var counter = [0, 0, 0, 0], - i, - self = this, - offset = start, - isWhite = !self._row[offset], - counterPos = 0, - bestMatch = { - error : Number.MAX_VALUE, - code : -1, - start : start, - end : start - }, - code, - error, - normalized; - - if (!coderange) { - coderange = self.CODE_PATTERN.length; - } - - for ( i = offset; i < self._row.length; i++) { - if (self._row[i] ^ isWhite) { - counter[counterPos]++; - } else { - if (counterPos === counter.length - 1) { - normalized = self._normalize(counter); - if (normalized) { - for (code = 0; code < coderange; code++) { - error = self._matchPattern(normalized, self.CODE_PATTERN[code]); - if (error < bestMatch.error) { - bestMatch.code = code; - bestMatch.error = error; - } - } - bestMatch.end = i; - if (bestMatch.error > self.AVG_CODE_ERROR) { - return null; - } - return bestMatch; - } - } else { - counterPos++; - } - counter[counterPos] = 1; - isWhite = !isWhite; - } - } - return null; - }; - - EANReader.prototype._findPattern = function(pattern, offset, isWhite, tryHarder, epsilon) { - var counter = [], - self = this, - i, - counterPos = 0, - bestMatch = { - error : Number.MAX_VALUE, - code : -1, - start : 0, - end : 0 - }, - error, - j, - sum, - normalized; - - if (!offset) { - offset = self._nextSet(self._row); - } - - if (isWhite === undefined) { - isWhite = false; - } - - if (tryHarder === undefined) { - tryHarder = true; - } - - if ( epsilon === undefined) { - epsilon = self.AVG_CODE_ERROR; - } - - for ( i = 0; i < pattern.length; i++) { - counter[i] = 0; - } - - for ( i = offset; i < self._row.length; i++) { - if (self._row[i] ^ isWhite) { - counter[counterPos]++; - } else { - if (counterPos === counter.length - 1) { - sum = 0; - for ( j = 0; j < counter.length; j++) { - sum += counter[j]; - } - normalized = self._normalize(counter); - if (normalized) { - error = self._matchPattern(normalized, pattern); - - if (error < epsilon) { - bestMatch.error = error; - bestMatch.start = i - sum; - bestMatch.end = i; - return bestMatch; - } - } - if (tryHarder) { - for ( j = 0; j < counter.length - 2; j++) { - counter[j] = counter[j + 2]; - } - counter[counter.length - 2] = 0; - counter[counter.length - 1] = 0; - counterPos--; - } else { - return null; - } - } else { - counterPos++; - } - counter[counterPos] = 1; - isWhite = !isWhite; - } - } - return null; - }; - - EANReader.prototype._findStart = function() { - var self = this, - leadingWhitespaceStart, - offset = self._nextSet(self._row), - startInfo; - - while(!startInfo) { - startInfo = self._findPattern(self.START_PATTERN, offset); - if (!startInfo) { - return null; - } - leadingWhitespaceStart = startInfo.start - (startInfo.end - startInfo.start); - if (leadingWhitespaceStart >= 0) { - if (self._matchRange(leadingWhitespaceStart, startInfo.start, 0)) { - return startInfo; - } - } - offset = startInfo.end; - startInfo = null; - } - }; - - EANReader.prototype._verifyTrailingWhitespace = function(endInfo) { - var self = this, - trailingWhitespaceEnd; - - trailingWhitespaceEnd = endInfo.end + (endInfo.end - endInfo.start); - if (trailingWhitespaceEnd < self._row.length) { - if (self._matchRange(endInfo.end, trailingWhitespaceEnd, 0)) { - return endInfo; - } - } - return null; - }; - - EANReader.prototype._findEnd = function(offset, isWhite) { - var self = this, - endInfo = self._findPattern(self.STOP_PATTERN, offset, isWhite, false); - - return endInfo !== null ? self._verifyTrailingWhitespace(endInfo) : null; - }; - - EANReader.prototype._calculateFirstDigit = function(codeFrequency) { - var i, - self = this; - - for ( i = 0; i < self.CODE_FREQUENCY.length; i++) { - if (codeFrequency === self.CODE_FREQUENCY[i]) { - return i; - } - } - return null; - }; - - EANReader.prototype._decodePayload = function(code, result, decodedCodes) { - var i, - self = this, - codeFrequency = 0x0, - firstDigit; - - for ( i = 0; i < 6; i++) { - code = self._decodeCode(code.end); - if (!code) { - return null; - } - if (code.code >= self.CODE_G_START) { - code.code = code.code - self.CODE_G_START; - codeFrequency |= 1 << (5 - i); - } else { - codeFrequency |= 0 << (5 - i); - } - result.push(code.code); - decodedCodes.push(code); - } - - firstDigit = self._calculateFirstDigit(codeFrequency); - if (firstDigit === null) { - return null; - } - result.unshift(firstDigit); - - code = self._findPattern(self.MIDDLE_PATTERN, code.end, true, false); - if (code === null) { - return null; - } - decodedCodes.push(code); - - for ( i = 0; i < 6; i++) { - code = self._decodeCode(code.end, self.CODE_G_START); - if (!code) { - return null; - } - decodedCodes.push(code); - result.push(code.code); - } - - return code; - }; - - EANReader.prototype._decode = function() { - var startInfo, - self = this, - code, - result = [], - decodedCodes = []; - - startInfo = self._findStart(); - if (!startInfo) { - return null; - } - code = { - code : startInfo.code, - start : startInfo.start, - end : startInfo.end - }; - decodedCodes.push(code); - code = self._decodePayload(code, result, decodedCodes); - if (!code) { - return null; - } - code = self._findEnd(code.end, false); - if (!code){ - return null; - } - - decodedCodes.push(code); - - // Checksum - if (!self._checksum(result)) { - return null; - } - - return { - code : result.join(""), - start : startInfo.start, - end : code.end, - codeset : "", - startInfo : startInfo, - decodedCodes : decodedCodes - }; - }; - - EANReader.prototype._checksum = function(result) { - var sum = 0, i; - - for ( i = result.length - 2; i >= 0; i -= 2) { - sum += result[i]; - } - sum *= 3; - for ( i = result.length - 1; i >= 0; i -= 2) { - sum += result[i]; - } - return sum % 10 === 0; - }; - - return (EANReader); - } -); -/* jshint undef: true, unused: true, browser:true, devel: true */ -/* global define */ - -define( - 'code_39_reader',[ - "./barcode_reader", - "./array_helper" - ], - function(BarcodeReader, ArrayHelper) { - "use strict"; - - function Code39Reader() { - BarcodeReader.call(this); - } - - var properties = { - ALPHABETH_STRING: {value: "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ-. *$/+%"}, - ALPHABET: {value: [48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 45, 46, 32, 42, 36, 47, 43, 37]}, - CHARACTER_ENCODINGS: {value: [0x034, 0x121, 0x061, 0x160, 0x031, 0x130, 0x070, 0x025, 0x124, 0x064, 0x109, 0x049, 0x148, 0x019, 0x118, 0x058, 0x00D, 0x10C, 0x04C, 0x01C, 0x103, 0x043, 0x142, 0x013, 0x112, 0x052, 0x007, 0x106, 0x046, 0x016, 0x181, 0x0C1, 0x1C0, 0x091, 0x190, 0x0D0, 0x085, 0x184, 0x0C4, 0x094, 0x0A8, 0x0A2, 0x08A, 0x02A]}, - ASTERISK: {value: 0x094}, - FORMAT: {value: "code_39", writeable: false} - }; - - Code39Reader.prototype = Object.create(BarcodeReader.prototype, properties); - Code39Reader.prototype.constructor = Code39Reader; - - Code39Reader.prototype._toCounters = function(start, counter) { - var self = this, - numCounters = counter.length, - end = self._row.length, - isWhite = !self._row[start], - i, - counterPos = 0; - - ArrayHelper.init(counter, 0); - - for ( i = start; i < end; i++) { - if (self._row[i] ^ isWhite) { - counter[counterPos]++; - } else { - counterPos++; - if (counterPos === numCounters) { - break; - } else { - counter[counterPos] = 1; - isWhite = !isWhite; - } - } - } - - return counter; - }; - - Code39Reader.prototype._decode = function() { - var self = this, - counters = [0,0,0,0,0,0,0,0,0], - result = [], - start = self._findStart(), - decodedChar, - lastStart, - pattern, - nextStart; - - if (!start) { - return null; - } - nextStart = self._nextSet(self._row, start.end); - - do { - counters = self._toCounters(nextStart, counters); - pattern = self._toPattern(counters); - if (pattern < 0) { - return null; - } - decodedChar = self._patternToChar(pattern); - if (decodedChar < 0){ - return null; - } - result.push(decodedChar); - lastStart = nextStart; - nextStart += ArrayHelper.sum(counters); - nextStart = self._nextSet(self._row, nextStart); - } while(decodedChar !== '*'); - result.pop(); - - if (!result.length) { - return null; - } - - if(!self._verifyTrailingWhitespace(lastStart, nextStart, counters)) { - return null; - } - - return { - code : result.join(""), - start : start.start, - end : nextStart, - startInfo : start, - decodedCodes : result - }; - }; - - Code39Reader.prototype._verifyTrailingWhitespace = function(lastStart, nextStart, counters) { - var trailingWhitespaceEnd, - patternSize = ArrayHelper.sum(counters); - - trailingWhitespaceEnd = nextStart - lastStart - patternSize; - if ((trailingWhitespaceEnd * 3) >= patternSize) { - return true; - } - return false; - }; - - Code39Reader.prototype._patternToChar = function(pattern) { - var i, - self = this; - - for (i = 0; i < self.CHARACTER_ENCODINGS.length; i++) { - if (self.CHARACTER_ENCODINGS[i] === pattern) { - return String.fromCharCode(self.ALPHABET[i]); - } - } - }; - - Code39Reader.prototype._findNextWidth = function(counters, current) { - var i, - minWidth = Number.MAX_VALUE; - - for (i = 0; i < counters.length; i++) { - if (counters[i] < minWidth && counters[i] > current) { - minWidth = counters[i]; - } - } - - return minWidth; - }; - - Code39Reader.prototype._toPattern = function(counters) { - var numCounters = counters.length, - maxNarrowWidth = 0, - numWideBars = numCounters, - wideBarWidth = 0, - self = this, - pattern, - i; - - while(numWideBars > 3) { - maxNarrowWidth = self._findNextWidth(counters, maxNarrowWidth); - numWideBars = 0; - pattern = 0; - for (i = 0; i < numCounters; i++) { - if (counters[i] > maxNarrowWidth) { - pattern |= 1 << (numCounters - 1 - i); - numWideBars++; - wideBarWidth += counters[i]; - } - } - - if (numWideBars === 3) { - for (i = 0; i < numCounters && numWideBars > 0; i++) { - if (counters[i] > maxNarrowWidth) { - numWideBars--; - if ((counters[i] * 2) >= wideBarWidth) { - return -1; - } - } - } - return pattern; - } - } - return -1; - }; - - Code39Reader.prototype._findStart = function() { - var self = this, - offset = self._nextSet(self._row), - patternStart = offset, - counter = [0,0,0,0,0,0,0,0,0], - counterPos = 0, - isWhite = false, - i, - j, - whiteSpaceMustStart; - - for ( i = offset; i < self._row.length; i++) { - if (self._row[i] ^ isWhite) { - counter[counterPos]++; - } else { - if (counterPos === counter.length - 1) { - - // find start pattern - if (self._toPattern(counter) === self.ASTERISK) { - whiteSpaceMustStart = Math.floor(Math.max(0, patternStart - ((i - patternStart) / 4))); - if (self._matchRange(whiteSpaceMustStart, patternStart, 0)) { - return { - start: patternStart, - end: i - }; - } - } - - patternStart += counter[0] + counter[1]; - for ( j = 0; j < 7; j++) { - counter[j] = counter[j + 2]; - } - counter[7] = 0; - counter[8] = 0; - counterPos--; - } else { - counterPos++; - } - counter[counterPos] = 1; - isWhite = !isWhite; - } - } - return null; - }; - - return (Code39Reader); - } -); -/* jshint undef: true, unused: true, browser:true, devel: true */ -/* global define */ - -define( - 'code_39_vin_reader',[ - "./code_39_reader" - ], - function(Code39Reader) { - "use strict"; - - function Code39VINReader() { - Code39Reader.call(this); - } - - var patterns = { - IOQ: /[IOQ]/g, - AZ09: /[A-Z0-9]{17}/ - }; - - Code39VINReader.prototype = Object.create(Code39Reader.prototype); - Code39VINReader.prototype.constructor = Code39VINReader; - - // Cribbed from: - // /~https://github.com/zxing/zxing/blob/master/core/src/main/java/com/google/zxing/client/result/VINResultParser.java - Code39VINReader.prototype._decode = function() { - var result = Code39Reader.prototype._decode.apply(this); - if (!result) { - return null; - } - - var code = result.code; - - if (!code) { - return; - } - - code = code.replace(patterns.IOQ, ''); - - if (!code.match(patterns.AZ09)) { - console.log('Failed AZ09 pattern code:', code); - return null; - } - - if (!this._checkChecksum(code)) { - return null; - } - - result.code = code; - return result; - }; - - Code39VINReader.prototype._checkChecksum = function(code) { - // TODO - return !!code; - }; - - return (Code39VINReader); - } -); - -/* jshint undef: true, unused: true, browser:true, devel: true */ -/* global define */ - -define( - 'codabar_reader',[ - "./barcode_reader" - ], - function(BarcodeReader) { - "use strict"; - - function CodabarReader() { - BarcodeReader.call(this); - this._counters = []; - } - - var properties = { - ALPHABETH_STRING: {value: "0123456789-$:/.+ABCD"}, - ALPHABET: {value: [48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 45, 36, 58, 47, 46, 43, 65, 66, 67, 68]}, - CHARACTER_ENCODINGS: {value: [0x003, 0x006, 0x009, 0x060, 0x012, 0x042, 0x021, 0x024, 0x030, 0x048, 0x00c, 0x018, 0x045, 0x051, 0x054, 0x015, 0x01A, 0x029, 0x00B, 0x00E]}, - START_END: {value: [0x01A, 0x029, 0x00B, 0x00E]}, - MIN_ENCODED_CHARS: {value: 4}, - MAX_ACCEPTABLE: {value: 2.0}, - PADDING: {value: 1.5}, - FORMAT: {value: "codabar", writeable: false} - }; - - CodabarReader.prototype = Object.create(BarcodeReader.prototype, properties); - CodabarReader.prototype.constructor = CodabarReader; - - CodabarReader.prototype._decode = function() { - var self = this, - result = [], - start, - decodedChar, - pattern, - nextStart, - end; - - this._counters = self._fillCounters(); - start = self._findStart(); - if (!start) { - return null; - } - nextStart = start.startCounter; - - do { - pattern = self._toPattern(nextStart); - if (pattern < 0) { - return null; - } - decodedChar = self._patternToChar(pattern); - if (decodedChar < 0){ - return null; - } - result.push(decodedChar); - nextStart += 8; - if (result.length > 1 && self._isStartEnd(pattern)) { - break; - } - } while(nextStart < self._counters.length); - - // verify end - if ((result.length - 2) < self.MIN_ENCODED_CHARS || !self._isStartEnd(pattern)) { - return null; - } - - // verify end white space - if (!self._verifyWhitespace(start.startCounter, nextStart - 8)){ - return null; - } - - if (!self._validateResult(result, start.startCounter)){ - return null; - } - - nextStart = nextStart > self._counters.length ? self._counters.length : nextStart; - end = start.start + self._sumCounters(start.startCounter, nextStart - 8); - - return { - code : result.join(""), - start : start.start, - end : end, - startInfo : start, - decodedCodes : result - }; - }; - - CodabarReader.prototype._verifyWhitespace = function(startCounter, endCounter) { - if ((startCounter - 1 <= 0) || this._counters[startCounter-1] >= (this._calculatePatternLength(startCounter) / 2.0)) { - if ((endCounter + 8 >= this._counters.length) || this._counters[endCounter+7] >= (this._calculatePatternLength(endCounter) / 2.0)) { - return true; - } - } - return false; - }; - - CodabarReader.prototype._calculatePatternLength = function(offset) { - var i, - sum = 0; - - for (i = offset; i < offset + 7; i++) { - sum += this._counters[i]; - } - - return sum; - }; - - CodabarReader.prototype._thresholdResultPattern = function(result, startCounter){ - var self = this, - categorization = { - space: { - narrow: { size: 0, counts: 0, min: 0, max: Number.MAX_VALUE}, - wide: {size: 0, counts: 0, min: 0, max: Number.MAX_VALUE} - }, - bar: { - narrow: { size: 0, counts: 0, min: 0, max: Number.MAX_VALUE}, - wide: { size: 0, counts: 0, min: 0, max: Number.MAX_VALUE} - } - }, - kind, - cat, - i, - j, - pos = startCounter, - pattern; - - for (i = 0; i < result.length; i++){ - pattern = self._charToPattern(result[i]); - for (j = 6; j >= 0; j--) { - kind = (j & 1) === 2 ? categorization.bar : categorization.space; - cat = (pattern & 1) === 1 ? kind.wide : kind.narrow; - cat.size += self._counters[pos + j]; - cat.counts++; - pattern >>= 1; - } - pos += 8; - } - - ["space", "bar"].forEach(function(key) { - var kind = categorization[key]; - kind.wide.min = Math.floor((kind.narrow.size/kind.narrow.counts + kind.wide.size / kind.wide.counts) / 2); - kind.narrow.max = Math.ceil(kind.wide.min); - kind.wide.max = Math.ceil((kind.wide.size * self.MAX_ACCEPTABLE + self.PADDING) / kind.wide.counts); - }); - - return categorization; - }; - - CodabarReader.prototype._charToPattern = function(char) { - var self = this, - charCode = char.charCodeAt(0), - i; - - for (i = 0; i < self.ALPHABET.length; i++) { - if (self.ALPHABET[i] === charCode){ - return self.CHARACTER_ENCODINGS[i]; - } - } - return 0x0; - }; - - CodabarReader.prototype._validateResult = function(result, startCounter) { - var self = this, - thresholds = self._thresholdResultPattern(result, startCounter), - i, - j, - kind, - cat, - size, - pos = startCounter, - pattern; - - for (i = 0; i < result.length; i++) { - pattern = self._charToPattern(result[i]); - for (j = 6; j >= 0; j--) { - kind = (j & 1) === 0 ? thresholds.bar : thresholds.space; - cat = (pattern & 1) === 1 ? kind.wide : kind.narrow; - size = self._counters[pos + j]; - if (size < cat.min || size > cat.max) { - return false; - } - pattern >>= 1; - } - pos += 8; - } - return true; - }; - - CodabarReader.prototype._patternToChar = function(pattern) { - var i, - self = this; - - for (i = 0; i < self.CHARACTER_ENCODINGS.length; i++) { - if (self.CHARACTER_ENCODINGS[i] === pattern) { - return String.fromCharCode(self.ALPHABET[i]); - } - } - return -1; - }; - - CodabarReader.prototype._computeAlternatingThreshold = function(offset, end) { - var i, - min = Number.MAX_VALUE, - max = 0, - counter; - - for (i = offset; i < end; i += 2){ - counter = this._counters[i]; - if (counter > max) { - max = counter; - } - if (counter < min) { - min = counter; - } - } - - return ((min + max) / 2.0) | 0; - }; - - CodabarReader.prototype._toPattern = function(offset) { - var numCounters = 7, - end = offset + numCounters, - barThreshold, - spaceThreshold, - bitmask = 1 << (numCounters - 1), - pattern = 0, - i, - threshold; - - if (end > this._counters.length) { - return -1; - } - - barThreshold = this._computeAlternatingThreshold(offset, end); - spaceThreshold = this._computeAlternatingThreshold(offset + 1, end); - - for (i = 0; i < numCounters; i++){ - threshold = (i & 1) === 0 ? barThreshold : spaceThreshold; - if (this._counters[offset + i] > threshold) { - pattern |= bitmask; - } - bitmask >>= 1; - } - - return pattern; - }; - - CodabarReader.prototype._isStartEnd = function(pattern) { - var i; - - for (i = 0; i < this.START_END.length; i++) { - if (this.START_END[i] === pattern) { - return true; - } - } - return false; - }; - - CodabarReader.prototype._sumCounters = function(start, end) { - var i, - sum = 0; - - for (i = start; i < end; i++) { - sum += this._counters[i]; - } - return sum; - }; - - CodabarReader.prototype._findStart = function() { - var self = this, - i, - pattern, - start = self._nextUnset(self._row), - end; - - for (i = 1; i < this._counters.length; i++) { - pattern = self._toPattern(i); - if (pattern !== -1 && self._isStartEnd(pattern)) { - // TODO: Look for whitespace ahead - start += self._sumCounters(0, i); - end = start + self._sumCounters(i, i + 8); - return { - start: start, - end: end, - startCounter: i, - endCounter: i + 8 - }; - } - } - }; - - return (CodabarReader); - } -); -/* jshint undef: true, unused: true, browser:true, devel: true */ -/* global define */ - -define( - 'upc_reader',[ - "./ean_reader" - ], - function(EANReader) { - "use strict"; - - function UPCReader() { - EANReader.call(this); - } - - var properties = { - FORMAT: {value: "upc_a", writeable: false} - }; - - UPCReader.prototype = Object.create(EANReader.prototype, properties); - UPCReader.prototype.constructor = UPCReader; - - UPCReader.prototype._decode = function() { - var result = EANReader.prototype._decode.call(this); - - if (result && result.code && result.code.length === 13 && result.code.charAt(0) === "0") { - - result.code = result.code.substring(1); - return result; - } - return null; - }; - - return (UPCReader); - } -); -/* jshint undef: true, unused: true, browser:true, devel: true */ -/* global define */ - -define( - 'ean_8_reader',[ - "./ean_reader" - ], - function(EANReader) { - "use strict"; - - function EAN8Reader() { - EANReader.call(this); - } - - var properties = { - FORMAT: {value: "ean_8", writeable: false} - }; - - EAN8Reader.prototype = Object.create(EANReader.prototype, properties); - EAN8Reader.prototype.constructor = EAN8Reader; - - EAN8Reader.prototype._decodePayload = function(code, result, decodedCodes) { - var i, - self = this; - - for ( i = 0; i < 4; i++) { - code = self._decodeCode(code.end, self.CODE_G_START); - if (!code) { - return null; - } - result.push(code.code); - decodedCodes.push(code); - } - - code = self._findPattern(self.MIDDLE_PATTERN, code.end, true, false); - if (code === null) { - return null; - } - decodedCodes.push(code); - - for ( i = 0; i < 4; i++) { - code = self._decodeCode(code.end, self.CODE_G_START); - if (!code) { - return null; - } - decodedCodes.push(code); - result.push(code.code); - } - - return code; - }; - - return (EAN8Reader); - } -); -/* jshint undef: true, unused: true, browser:true, devel: true */ -/* global define */ - -define( - 'upc_e_reader',[ - "./ean_reader" - ], - function(EANReader) { - "use strict"; - - function UPCEReader() { - EANReader.call(this); - } - - var properties = { - CODE_FREQUENCY : {value: [ - [ 56, 52, 50, 49, 44, 38, 35, 42, 41, 37 ], - [7, 11, 13, 14, 19, 25, 28, 21, 22, 26]]}, - STOP_PATTERN: { value: [1 / 6 * 7, 1 / 6 * 7, 1 / 6 * 7, 1 / 6 * 7, 1 / 6 * 7, 1 / 6 * 7]}, - FORMAT: {value: "upc_e", writeable: false} - }; - - UPCEReader.prototype = Object.create(EANReader.prototype, properties); - UPCEReader.prototype.constructor = UPCEReader; - - UPCEReader.prototype._decodePayload = function(code, result, decodedCodes) { - var i, - self = this, - codeFrequency = 0x0; - - for ( i = 0; i < 6; i++) { - code = self._decodeCode(code.end); - if (!code) { - return null; - } - if (code.code >= self.CODE_G_START) { - code.code = code.code - self.CODE_G_START; - codeFrequency |= 1 << (5 - i); - } - result.push(code.code); - decodedCodes.push(code); - } - if (!self._determineParity(codeFrequency, result)) { - return null; - } - - return code; - }; - - UPCEReader.prototype._determineParity = function(codeFrequency, result) { - var self =this, - i, - nrSystem; - - for (nrSystem = 0; nrSystem < self.CODE_FREQUENCY.length; nrSystem++){ - for ( i = 0; i < self.CODE_FREQUENCY[nrSystem].length; i++) { - if (codeFrequency === self.CODE_FREQUENCY[nrSystem][i]) { - result.unshift(nrSystem); - result.push(i); - return true; - } - } - } - return false; - }; - - UPCEReader.prototype._convertToUPCA = function(result) { - var upca = [result[0]], - lastDigit = result[result.length - 2]; - - if (lastDigit <= 2) { - upca = upca.concat(result.slice(1, 3)) - .concat([lastDigit, 0, 0, 0, 0]) - .concat(result.slice(3, 6)); - } else if (lastDigit === 3) { - upca = upca.concat(result.slice(1, 4)) - .concat([0 ,0, 0, 0, 0]) - .concat(result.slice(4,6)); - } else if (lastDigit === 4) { - upca = upca.concat(result.slice(1, 5)) - .concat([0, 0, 0, 0, 0, result[5]]); - } else { - upca = upca.concat(result.slice(1, 6)) - .concat([0, 0, 0, 0, lastDigit]); - } - - upca.push(result[result.length - 1]); - return upca; - }; - - UPCEReader.prototype._checksum = function(result) { - return EANReader.prototype._checksum.call(this, this._convertToUPCA(result)); - }; - - UPCEReader.prototype._findEnd = function(offset, isWhite) { - isWhite = true; - return EANReader.prototype._findEnd.call(this, offset, isWhite); - }; - - UPCEReader.prototype._verifyTrailingWhitespace = function(endInfo) { - var self = this, - trailingWhitespaceEnd; - - trailingWhitespaceEnd = endInfo.end + ((endInfo.end - endInfo.start)/2); - if (trailingWhitespaceEnd < self._row.length) { - if (self._matchRange(endInfo.end, trailingWhitespaceEnd, 0)) { - return endInfo; - } - } - }; - - return (UPCEReader); - } -); -/* jshint undef: true, unused: true, browser:true, devel: true */ -/* global define */ - -define('html_utils',[], function() { - "use strict"; - - function createNode(htmlStr) { - var temp = document.createElement('div'); - - temp.innerHTML = htmlStr; - while (temp.firstChild) { - return temp.firstChild; - } - } - - function mergeObjects(obj1, obj2) { - for (var p in obj2) { - try { - if (obj2[p].constructor == Object) { - obj1[p] = mergeObjects(obj1[p], obj2[p]); - } else { - obj1[p] = obj2[p]; - } - } catch(e) { - obj1[p] = obj2[p]; - } - } - - return obj1; - } - - return { - createNode : function(htmlStr) { - return createNode(htmlStr); - }, - mergeObjects : function(obj1, obj2) { - return mergeObjects(obj1, obj2); - } - }; -}); -/* jshint undef: true, unused: true, browser:true, devel: true */ -/* global define */ - -define( - 'i2of5_reader',[ - "./barcode_reader", - "./html_utils" - ], - function(BarcodeReader, HTMLUtils) { - "use strict"; - - function I2of5Reader(opts) { - opts = HTMLUtils.mergeObjects(getDefaulConfig(), opts); - BarcodeReader.call(this, opts); - this.barSpaceRatio = [1, 1]; - if (opts.normalizeBarSpaceWidth) { - this.SINGLE_CODE_ERROR = 0.38; - this.AVG_CODE_ERROR = 0.09; - } - } - - function getDefaulConfig() { - var config = {}; - - Object.keys(I2of5Reader.CONFIG_KEYS).forEach(function(key) { - config[key] = I2of5Reader.CONFIG_KEYS[key]['default']; - }); - return config; - } - - var N = 1, - W = 3, - properties = { - MODULO : {value: 10}, - START_PATTERN : {value: [N*2.5, N*2.5, N*2.5, N*2.5]}, - STOP_PATTERN : {value: [N*2, N*2, W*2]}, - CODE_PATTERN : {value: [ - [N, N, W, W, N], - [W, N, N, N, W], - [N, W, N, N, W], - [W, W, N, N, N], - [N, N, W, N, W], - [W, N, W, N, N], - [N, W, W, N, N], - [N, N, N, W, W], - [W, N, N, W, N], - [N, W, N, W, N] - ]}, - SINGLE_CODE_ERROR: {value: 0.78, writable: true}, - AVG_CODE_ERROR: {value: 0.38, writable: true}, - MAX_CORRECTION_FACTOR: {value: 5}, - FORMAT: {value: "i2of5"} - }; - - I2of5Reader.prototype = Object.create(BarcodeReader.prototype, properties); - I2of5Reader.prototype.constructor = I2of5Reader; - - I2of5Reader.prototype._matchPattern = function(counter, code) { - if (this.config.normalizeBarSpaceWidth) { - var i, - counterSum = [0, 0], - codeSum = [0, 0], - correction = [0, 0], - correctionRatio = this.MAX_CORRECTION_FACTOR, - correctionRatioInverse = 1 / correctionRatio; - - for (i = 0; i < counter.length; i++) { - counterSum[i % 2] += counter[i]; - codeSum[i % 2] += code[i]; - } - correction[0] = codeSum[0] / counterSum[0]; - correction[1] = codeSum[1] / counterSum[1]; - - correction[0] = Math.max(Math.min(correction[0], correctionRatio), correctionRatioInverse); - correction[1] = Math.max(Math.min(correction[1], correctionRatio), correctionRatioInverse); - this.barSpaceRatio = correction; - for (i = 0; i < counter.length; i++) { - counter[i] *= this.barSpaceRatio[i % 2]; - } - } - return BarcodeReader.prototype._matchPattern.call(this, counter, code); - }; - - I2of5Reader.prototype._findPattern = function(pattern, offset, isWhite, tryHarder) { - var counter = [], - self = this, - i, - counterPos = 0, - bestMatch = { - error : Number.MAX_VALUE, - code : -1, - start : 0, - end : 0 - }, - error, - j, - sum, - normalized, - epsilon = self.AVG_CODE_ERROR; - - isWhite = isWhite || false; - tryHarder = tryHarder || false; - - if (!offset) { - offset = self._nextSet(self._row); - } - - for ( i = 0; i < pattern.length; i++) { - counter[i] = 0; - } - - for ( i = offset; i < self._row.length; i++) { - if (self._row[i] ^ isWhite) { - counter[counterPos]++; - } else { - if (counterPos === counter.length - 1) { - sum = 0; - for ( j = 0; j < counter.length; j++) { - sum += counter[j]; - } - normalized = self._normalize(counter); - if (normalized) { - error = self._matchPattern(normalized, pattern); - - if (error < epsilon) { - bestMatch.error = error; - bestMatch.start = i - sum; - bestMatch.end = i; - return bestMatch; - } - } - if (tryHarder) { - for (j = 0; j < counter.length - 2; j++) { - counter[j] = counter[j + 2]; - } - counter[counter.length - 2] = 0; - counter[counter.length - 1] = 0; - counterPos--; - } else { - return null; - } - } else { - counterPos++; - } - counter[counterPos] = 1; - isWhite = !isWhite; - } - } - return null; - }; - - I2of5Reader.prototype._findStart = function() { - var self = this, - leadingWhitespaceStart, - offset = self._nextSet(self._row), - startInfo, - narrowBarWidth = 1; - - while(!startInfo) { - startInfo = self._findPattern(self.START_PATTERN, offset, false, true); - if (!startInfo) { - return null; - } - narrowBarWidth = Math.floor((startInfo.end - startInfo.start) / 4); - leadingWhitespaceStart = startInfo.start - narrowBarWidth*10; - if (leadingWhitespaceStart >= 0) { - if (self._matchRange(leadingWhitespaceStart, startInfo.start, 0)) { - return startInfo; - } - } - offset = startInfo.end; - startInfo = null; - } - }; - - I2of5Reader.prototype._verifyTrailingWhitespace = function(endInfo) { - var self = this, - trailingWhitespaceEnd; - - trailingWhitespaceEnd = endInfo.end + ((endInfo.end - endInfo.start) / 2); - if (trailingWhitespaceEnd < self._row.length) { - if (self._matchRange(endInfo.end, trailingWhitespaceEnd, 0)) { - return endInfo; - } - } - return null; - }; - - I2of5Reader.prototype._findEnd = function() { - var self = this, - endInfo, - tmp; - - self._row.reverse(); - endInfo = self._findPattern(self.STOP_PATTERN); - self._row.reverse(); - - if (endInfo === null) { - return null; - } - - // reverse numbers - tmp = endInfo.start; - endInfo.start = self._row.length - endInfo.end; - endInfo.end = self._row.length - tmp; - - return endInfo !== null ? self._verifyTrailingWhitespace(endInfo) : null; - }; - - I2of5Reader.prototype._decodePair = function(counterPair) { - var i, - code, - codes = [], - self = this; - - for (i = 0; i < counterPair.length; i++) { - code = self._decodeCode(counterPair[i]); - if (!code) { - return null; - } - codes.push(code); - } - return codes; - }; - - I2of5Reader.prototype._decodeCode = function(counter) { - var j, - self = this, - sum = 0, - normalized, - error, - epsilon = self.AVG_CODE_ERROR, - code, - bestMatch = { - error : Number.MAX_VALUE, - code : -1, - start : 0, - end : 0 - }; - - for ( j = 0; j < counter.length; j++) { - sum += counter[j]; - } - normalized = self._normalize(counter); - if (normalized) { - for (code = 0; code < self.CODE_PATTERN.length; code++) { - error = self._matchPattern(normalized, self.CODE_PATTERN[code]); - if (error < bestMatch.error) { - bestMatch.code = code; - bestMatch.error = error; - } - } - if (bestMatch.error < epsilon) { - return bestMatch; - } - } - return null; - }; - - I2of5Reader.prototype._decodePayload = function(counters, result, decodedCodes) { - var i, - self = this, - pos = 0, - counterLength = counters.length, - counterPair = [[0, 0, 0, 0, 0], [0, 0, 0, 0, 0]], - codes; - - while (pos < counterLength) { - for (i = 0; i < 5; i++) { - counterPair[0][i] = counters[pos]*this.barSpaceRatio[0]; - counterPair[1][i] = counters[pos + 1]*this.barSpaceRatio[1]; - pos += 2; - } - codes = self._decodePair(counterPair); - if (!codes) { - return null; - } - for (i = 0; i < codes.length; i++) { - result.push(codes[i].code + ""); - decodedCodes.push(codes[i]); - } - } - return codes; - }; - - I2of5Reader.prototype._verifyCounterLength = function(counters) { - return (counters.length % 10 === 0); - }; - - I2of5Reader.prototype._decode = function() { - var startInfo, - endInfo, - self = this, - code, - result = [], - decodedCodes = [], - counters; - - startInfo = self._findStart(); - if (!startInfo) { - return null; - } - decodedCodes.push(startInfo); - - endInfo = self._findEnd(); - if (!endInfo) { - return null; - } - - counters = self._fillCounters(startInfo.end, endInfo.start, false); - if (!self._verifyCounterLength(counters)) { - return null; - } - code = self._decodePayload(counters, result, decodedCodes); - if (!code) { - return null; - } - if (result.length % 2 !== 0 || - result.length < 6) { - return null; - } - - decodedCodes.push(endInfo); - return { - code : result.join(""), - start : startInfo.start, - end : endInfo.end, - startInfo : startInfo, - decodedCodes : decodedCodes - }; - }; - - I2of5Reader.CONFIG_KEYS = { - normalizeBarSpaceWidth: { - 'type': 'boolean', - 'default': false, - 'description': 'If true, the reader tries to normalize the' + - 'width-difference between bars and spaces' - } - }; - - return (I2of5Reader); - } -); -/* jshint undef: true, unused: true, browser:true, devel: true */ -/* global define */ - -define('barcode_decoder',[ - "bresenham", - "image_debug", - 'code_128_reader', - 'ean_reader', - 'code_39_reader', - 'code_39_vin_reader', - 'codabar_reader', - 'upc_reader', - 'ean_8_reader', - 'upc_e_reader', - 'i2of5_reader' -], function( - Bresenham, - ImageDebug, - Code128Reader, - EANReader, - Code39Reader, - Code39VINReader, - CodabarReader, - UPCReader, - EAN8Reader, - UPCEReader, - I2of5Reader) { - "use strict"; - - var readers = { - code_128_reader: Code128Reader, - ean_reader: EANReader, - ean_8_reader: EAN8Reader, - code_39_reader: Code39Reader, - code_39_vin_reader: Code39VINReader, - codabar_reader: CodabarReader, - upc_reader: UPCReader, - upc_e_reader: UPCEReader, - i2of5_reader: I2of5Reader - }; - var BarcodeDecoder = { - create : function(config, inputImageWrapper) { - var _canvas = { - ctx : { - frequency : null, - pattern : null, - overlay : null - }, - dom : { - frequency : null, - pattern : null, - overlay : null - } - }, - _barcodeReaders = []; - - initCanvas(); - initReaders(); - initConfig(); - - function initCanvas() { - if (typeof document !== 'undefined') { - var $debug = document.querySelector("#debug.detection"); - _canvas.dom.frequency = document.querySelector("canvas.frequency"); - if (!_canvas.dom.frequency) { - _canvas.dom.frequency = document.createElement("canvas"); - _canvas.dom.frequency.className = "frequency"; - if($debug) { - $debug.appendChild(_canvas.dom.frequency); - } - } - _canvas.ctx.frequency = _canvas.dom.frequency.getContext("2d"); - - _canvas.dom.pattern = document.querySelector("canvas.patternBuffer"); - if (!_canvas.dom.pattern) { - _canvas.dom.pattern = document.createElement("canvas"); - _canvas.dom.pattern.className = "patternBuffer"; - if($debug) { - $debug.appendChild(_canvas.dom.pattern); - } - } - _canvas.ctx.pattern = _canvas.dom.pattern.getContext("2d"); - - _canvas.dom.overlay = document.querySelector("canvas.drawingBuffer"); - if (_canvas.dom.overlay) { - _canvas.ctx.overlay = _canvas.dom.overlay.getContext("2d"); - } - } - } - - function initReaders() { - config.readers.forEach(function(readerConfig) { - var reader, - config = {}; - - if (typeof readerConfig === 'object') { - reader = readerConfig.format; - config = readerConfig.config; - } else if (typeof readerConfig === 'string') { - reader = readerConfig; - } - _barcodeReaders.push(new readers[reader](config)); - }); - console.log("Registered Readers: " + _barcodeReaders - .map(function(reader) {return JSON.stringify({format: reader.FORMAT, config: reader.config});}) - .join(', ')); - } - - function initConfig() { - if (typeof document !== 'undefined') { - var i, - vis = [{ - node : _canvas.dom.frequency, - prop : config.showFrequency - }, { - node : _canvas.dom.pattern, - prop : config.showPattern - }]; - - for (i = 0; i < vis.length; i++) { - if (vis[i].prop === true) { - vis[i].node.style.display = "block"; - } else { - vis[i].node.style.display = "none"; - } - } - } - } - - /** - * extend the line on both ends - * @param {Array} line - * @param {Number} angle - */ - function getExtendedLine(line, angle, ext) { - function extendLine(amount) { - var extension = { - y : amount * Math.sin(angle), - x : amount * Math.cos(angle) - }; - - line[0].y -= extension.y; - line[0].x -= extension.x; - line[1].y += extension.y; - line[1].x += extension.x; - } - - // check if inside image - extendLine(ext); - while (ext > 1 && (!inputImageWrapper.inImageWithBorder(line[0], 0) || !inputImageWrapper.inImageWithBorder(line[1], 0))) { - ext -= Math.ceil(ext/2); - extendLine(-ext); - } - return line; - } - - function getLine(box) { - return [{ - x : (box[1][0] - box[0][0]) / 2 + box[0][0], - y : (box[1][1] - box[0][1]) / 2 + box[0][1] - }, { - x : (box[3][0] - box[2][0]) / 2 + box[2][0], - y : (box[3][1] - box[2][1]) / 2 + box[2][1] - }]; - } - - function tryDecode(line) { - var result = null, - i, - barcodeLine = Bresenham.getBarcodeLine(inputImageWrapper, line[0], line[1]); - - if (config.showFrequency) { - ImageDebug.drawPath(line, {x: 'x', y: 'y'}, _canvas.ctx.overlay, {color: 'red', lineWidth: 3}); - Bresenham.debug.printFrequency(barcodeLine.line, _canvas.dom.frequency); - } - Bresenham.toBinaryLine(barcodeLine); - if (config.showPattern) { - Bresenham.debug.printPattern(barcodeLine.line, _canvas.dom.pattern); - } - - for ( i = 0; i < _barcodeReaders.length && result === null; i++) { - result = _barcodeReaders[i].decodePattern(barcodeLine.line); - } - if(result === null){ - return null; - } - return { - codeResult: result, - barcodeLine: barcodeLine - }; - - } - - /** - * This method slices the given area apart and tries to detect a barcode-pattern - * for each slice. It returns the decoded barcode, or null if nothing was found - * @param {Array} box - * @param {Array} line - * @param {Number} lineAngle - */ - function tryDecodeBruteForce(box, line, lineAngle) { - var sideLength = Math.sqrt(Math.pow(box[1][0] - box[0][0], 2) + Math.pow((box[1][1] - box[0][1]), 2)), - i, - slices = 16, - result = null, - dir, - extension, - xdir = Math.sin(lineAngle), - ydir = Math.cos(lineAngle); - - for ( i = 1; i < slices && result === null; i++) { - // move line perpendicular to angle - dir = sideLength / slices * i * (i % 2 === 0 ? -1 : 1); - extension = { - y : dir * xdir, - x : dir * ydir - }; - line[0].y += extension.x; - line[0].x -= extension.y; - line[1].y += extension.x; - line[1].x -= extension.y; - - result = tryDecode(line); - } - return result; - } - - function getLineLength(line) { - return Math.sqrt( - Math.pow(Math.abs(line[1].y - line[0].y), 2) + - Math.pow(Math.abs(line[1].x - line[0].x), 2)); - } - - /** - * With the help of the configured readers (Code128 or EAN) this function tries to detect a - * valid barcode pattern within the given area. - * @param {Object} box The area to search in - * @returns {Object} the result {codeResult, line, angle, pattern, threshold} - */ - function decodeFromBoundingBox(box) { - var line, - lineAngle, - ctx = _canvas.ctx.overlay, - result, - lineLength; - - if (config.drawBoundingBox && ctx) { - ImageDebug.drawPath(box, {x: 0, y: 1}, ctx, {color: "blue", lineWidth: 2}); - } - - line = getLine(box); - lineLength = getLineLength(line); - lineAngle = Math.atan2(line[1].y - line[0].y, line[1].x - line[0].x); - line = getExtendedLine(line, lineAngle, Math.floor(lineLength*0.1)); - if(line === null){ - return null; - } - - result = tryDecode(line); - if(result === null) { - result = tryDecodeBruteForce(box, line, lineAngle); - } - - if(result === null) { - return null; - } - - if (result && config.drawScanline && ctx) { - ImageDebug.drawPath(line, {x: 'x', y: 'y'}, ctx, {color: 'red', lineWidth: 3}); - } - - return { - codeResult : result.codeResult, - line : line, - angle : lineAngle, - pattern : result.barcodeLine.line, - threshold : result.barcodeLine.threshold - }; - } - - return { - decodeFromBoundingBox : function(box) { - return decodeFromBoundingBox(box); - }, - decodeFromBoundingBoxes : function(boxes) { - var i, result; - for ( i = 0; i < boxes.length; i++) { - result = decodeFromBoundingBox(boxes[i]); - if (result && result.codeResult) { - result.box = boxes[i]; - return result; - } - } - }, - setReaders: function(readers) { - config.readers = readers; - _barcodeReaders.length = 0; - initReaders(); - } - }; - } - }; - - return (BarcodeDecoder); -}); - -/* jshint undef: true, unused: true, browser:true, devel: true */ -/* global define */ - -define('frame_grabber',["cv_utils"], function(CVUtils) { - "use strict"; - - var FrameGrabber = {}; - - FrameGrabber.create = function(inputStream, canvas) { - var _that = {}, - _streamConfig = inputStream.getConfig(), - _video_size = CVUtils.imageRef(inputStream.getRealWidth(), inputStream.getRealHeight()), - _canvasSize = inputStream.getCanvasSize(), - _size = CVUtils.imageRef(inputStream.getWidth(), inputStream.getHeight()), - topRight = inputStream.getTopRight(), - _sx = topRight.x, - _sy = topRight.y, - _canvas, - _ctx = null, - _data = null; - - _canvas = canvas ? canvas : document.createElement("canvas"); - _canvas.width = _canvasSize.x; - _canvas.height = _canvasSize.y; - _ctx = _canvas.getContext("2d"); - _data = new Uint8Array(_size.x * _size.y); - console.log("FrameGrabber", JSON.stringify({ - size: _size, - topRight: topRight, - videoSize: _video_size, - canvasSize: _canvasSize - })); - - /** - * Uses the given array as frame-buffer - */ - _that.attachData = function(data) { - _data = data; - }; - - /** - * Returns the used frame-buffer - */ - _that.getData = function() { - return _data; - }; - - /** - * Fetches a frame from the input-stream and puts into the frame-buffer. - * The image-data is converted to gray-scale and then half-sampled if configured. - */ - _that.grab = function() { - var doHalfSample = _streamConfig.halfSample, - frame = inputStream.getFrame(), - ctxData; - if (frame) { - _ctx.drawImage(frame, 0, 0, _canvasSize.x, _canvasSize.y); - ctxData = _ctx.getImageData(_sx, _sy, _size.x, _size.y).data; - if(doHalfSample){ - CVUtils.grayAndHalfSampleFromCanvasData(ctxData, _size, _data); - } else { - CVUtils.computeGray(ctxData, _data, _streamConfig); - } - return true; - } else { - return false; - } - }; - - _that.getSize = function() { - return _size; - }; - - return _that; - }; - - return (FrameGrabber); -}); - -/** - * The basic configuration - */ - -define('config',[],function(){ - var config = { - inputStream: { name: "Live", - type: "LiveStream", - constraints: { - width: 640, - height: 480, - minAspectRatio: 0, - maxAspectRatio: 100, - facing: "environment" // or user - }, - area: { - top: "0%", - right: "0%", - left: "0%", - bottom: "0%" - }, - singleChannel: false // true: only the red color-channel is read - }, - tracking: false, - debug: false, - controls: false, - locate: true, - numOfWorkers: 4, - visual: { - show: true - }, - decoder:{ - drawBoundingBox: false, - showFrequency: false, - drawScanline: false, - showPattern: false, - readers: [ - 'code_128_reader' - ] - }, - locator: { - halfSample: true, - patchSize: "medium", // x-small, small, medium, large, x-large - showCanvas: false, - showPatches: false, - showFoundPatches: false, - showSkeleton: false, - showLabels: false, - showPatchLabels: false, - showRemainingPatchLabels: false, - boxFromPatches: { - showTransformed: false, - showTransformedBox: false, - showBB: false - } - } - }; - - return config; -}); - -/* jshint undef: true, unused: true, browser:true, devel: true */ -/* global define */ - -define('events',[],function() { - "use strict"; - - var _events = function() { - var events = {}; - - function getEvent(eventName) { - if (!events[eventName]) { - events[eventName] = { - subscribers : [] - }; - } - return events[eventName]; - } - - function clearEvents(){ - events = {}; - } - - function publishSubscription(subscription, data) { - if (subscription.async) { - setTimeout(function() { - subscription.callback(data); - }, 4); - } else { - subscription.callback(data); - } - } - - function subscribe(event, callback, async) { - var subscription; - - if ( typeof callback === "function") { - subscription = { - callback : callback, - async : async - }; - } else { - subscription = callback; - if (!subscription.callback) { - throw "Callback was not specified on options"; - } - } - - getEvent(event).subscribers.push(subscription); - } - - return { - subscribe : function(event, callback, async) { - return subscribe(event, callback, async); - }, - publish : function(eventName, data) { - var event = getEvent(eventName), - subscribers = event.subscribers; - - event.subscribers = subscribers.filter(function(subscriber) { - publishSubscription(subscriber, data); - return !subscriber.once; - }); - }, - once: function(event, callback, async) { - subscribe(event, { - callback: callback, - async: async, - once: true - }); - }, - unsubscribe: function(eventName, callback) { - var event; - - if (eventName) { - event = getEvent(eventName); - if (event && callback) { - event.subscribers = event.subscribers.filter(function(subscriber){ - return subscriber.callback !== callback; - }); - } else { - event.subscribers = []; - } - } else { - clearEvents(); - } - } - }; - }(); - - return _events; -}); -/* jshint undef: true, unused: true, browser:true, devel: true */ -/* global define, MediaStreamTrack */ - -define('camera_access',["html_utils"], function(HtmlUtils) { - "use strict"; - var streamRef, - loadedDataHandler; - - /** - * Wraps browser-specific getUserMedia - * @param {Object} constraints - * @param {Object} success Callback - * @param {Object} failure Callback - */ - function getUserMedia(constraints, success, failure) { - if (typeof navigator.getUserMedia !== 'undefined') { - navigator.getUserMedia(constraints, function (stream) { - streamRef = stream; - var videoSrc = (window.URL && window.URL.createObjectURL(stream)) || stream; - success.apply(null, [videoSrc]); - }, failure); - } else { - failure(new TypeError("getUserMedia not available")); - } - } - - function loadedData(video, callback) { - var attempts = 10; - - function checkVideo() { - if (attempts > 0) { - if (video.videoWidth > 0 && video.videoHeight > 0) { - console.log(video.videoWidth + "px x " + video.videoHeight + "px"); - callback(); - } else { - window.setTimeout(checkVideo, 500); - } - } else { - callback('Unable to play video stream. Is webcam working?'); - } - attempts--; - } - checkVideo(); - } - - /** - * Tries to attach the camera-stream to a given video-element - * and calls the callback function when the content is ready - * @param {Object} constraints - * @param {Object} video - * @param {Object} callback - */ - function initCamera(constraints, video, callback) { - getUserMedia(constraints, function(src) { - video.src = src; - if (loadedDataHandler) { - video.removeEventListener("loadeddata", loadedDataHandler, false); - } - loadedDataHandler = loadedData.bind(null, video, callback); - video.addEventListener('loadeddata', loadedDataHandler, false); - video.play(); - }, function(e) { - callback(e); - }); - } - - /** - * Normalizes the incoming constraints to satisfy the current browser - * @param config - * @param cb Callback which is called whenever constraints are created - * @returns {*} - */ - function normalizeConstraints(config, cb) { - var constraints = { - audio: false, - video: true - }, - videoConstraints = HtmlUtils.mergeObjects({ - width: 640, - height: 480, - minAspectRatio: 0, - maxAspectRatio: 100, - facing: "environment" - }, config); - - if ( typeof MediaStreamTrack !== 'undefined' && typeof MediaStreamTrack.getSources !== 'undefined') { - MediaStreamTrack.getSources(function(sourceInfos) { - var videoSourceId; - for (var i = 0; i != sourceInfos.length; ++i) { - var sourceInfo = sourceInfos[i]; - if (sourceInfo.kind == "video" && sourceInfo.facing == videoConstraints.facing) { - videoSourceId = sourceInfo.id; - } - } - constraints.video = { - mandatory: { - minWidth: videoConstraints.width, - minHeight: videoConstraints.height, - minAspectRatio: videoConstraints.minAspectRatio, - maxAspectRatio: videoConstraints.maxAspectRatio - }, - optional: [{ - sourceId: videoSourceId - }] - }; - return cb(constraints); - }); - } else { - constraints.video = { - mediaSource: "camera", - width: { min: videoConstraints.width, max: videoConstraints.width }, - height: { min: videoConstraints.height, max: videoConstraints.height }, - require: ["width", "height"] - }; - return cb(constraints); - } - } - - /** - * Requests the back-facing camera of the user. The callback is called - * whenever the stream is ready to be consumed, or if an error occures. - * @param {Object} video - * @param {Object} callback - */ - function request(video, videoConstraints, callback) { - normalizeConstraints(videoConstraints, function(constraints) { - initCamera(constraints, video, callback); - }); - } - - return { - request : function(video, constraints, callback) { - request(video, constraints, callback); - }, - release : function() { - var tracks = streamRef && streamRef.getVideoTracks(); - if (tracks.length) { - tracks[0].stop(); - } - streamRef = null; - } - }; -}); - -/* jshint undef: true, unused: true, browser:true, devel: true */ -/* global define */ - -define('result_collector',["image_debug"], function(ImageDebug) { - "use strict"; - - function contains(codeResult, list) { - if (list) { - return list.some(function (item) { - return Object.keys(item).every(function (key) { - return item[key] === codeResult[key]; - }); - }); - } - return false; - } - - function passesFilter(codeResult, filter) { - if (typeof filter === 'function') { - return filter(codeResult); - } - return true; - } - - return { - create: function(config) { - var canvas = document.createElement("canvas"), - ctx = canvas.getContext("2d"), - results = [], - capacity = config.capacity || 20, - capture = config.capture === true; - - function matchesConstraints(codeResult) { - return capacity && codeResult && !contains(codeResult, config.blacklist) && passesFilter(codeResult, config.filter); - } - - return { - addResult: function(data, imageSize, codeResult) { - var result = {}; - - if (matchesConstraints(codeResult)) { - capacity--; - result.codeResult = codeResult; - if (capture) { - canvas.width = imageSize.x; - canvas.height = imageSize.y; - ImageDebug.drawImage(data, imageSize, ctx); - result.frame = canvas.toDataURL(); - } - results.push(result); - } - }, - getResults: function() { - return results; - } - }; - } - }; -}); - -/* jshint undef: true, unused: true, browser:true, devel: true, evil: true */ -/* global define */ -define('quagga',[ - "input_stream", - "image_wrapper", - "barcode_locator", - "barcode_decoder", - "frame_grabber", - "html_utils", - "config", - "events", - "camera_access", - "image_debug", - "gl-matrix", - "result_collector"], -function(InputStream, - ImageWrapper, - BarcodeLocator, - BarcodeDecoder, - FrameGrabber, - HtmlUtils, - _config, - Events, - CameraAccess, - ImageDebug, - glMatrix, - ResultCollector) { - "use strict"; - - var _inputStream, - _framegrabber, - _stopped, - _canvasContainer = { - ctx : { - image : null, - overlay : null - }, - dom : { - image : null, - overlay : null - } - }, - _inputImageWrapper, - _boxSize, - _decoder, - _workerPool = [], - _onUIThread = true, - vec2 = glMatrix.vec2, - _resultCollector; - - function initializeData(imageWrapper) { - initBuffers(imageWrapper); - _decoder = BarcodeDecoder.create(_config.decoder, _inputImageWrapper); - } - - function initConfig() { - if (typeof document !== "undefined") { - var vis = [{ - node: document.querySelector("div[data-controls]"), - prop: _config.controls - }, { - node: _canvasContainer.dom.overlay, - prop: _config.visual.show - }]; - - for (var i = 0; i < vis.length; i++) { - if (vis[i].node) { - if (vis[i].prop === true) { - vis[i].node.style.display = "block"; - } else { - vis[i].node.style.display = "none"; - } - } - } - } - } - - function initInputStream(cb) { - var video; - if (_config.inputStream.type == "VideoStream") { - video = document.createElement("video"); - _inputStream = InputStream.createVideoStream(video); - } else if (_config.inputStream.type == "ImageStream") { - _inputStream = InputStream.createImageStream(); - } else if (_config.inputStream.type == "LiveStream") { - var $viewport = document.querySelector("#interactive.viewport"); - if ($viewport) { - video = $viewport.querySelector("video"); - if (!video) { - video = document.createElement("video"); - $viewport.appendChild(video); - } - } - _inputStream = InputStream.createLiveStream(video); - CameraAccess.request(video, _config.inputStream.constraints, function(err) { - if (!err) { - _inputStream.trigger("canrecord"); - } else { - return cb(err); - } - }); - } - - _inputStream.setAttribute("preload", "auto"); - _inputStream.setAttribute("autoplay", true); - _inputStream.setInputStream(_config.inputStream); - _inputStream.addEventListener("canrecord", canRecord.bind(undefined, cb)); - } - - function canRecord(cb) { - BarcodeLocator.checkImageConstraints(_inputStream, _config.locator); - initCanvas(); - _framegrabber = FrameGrabber.create(_inputStream, _canvasContainer.dom.image); - initConfig(); - - if (_config.numOfWorkers > 0) { - initWorkers(function() { - console.log("Workers created"); - ready(cb); - }); - } else { - initializeData(); - ready(cb); - } - } - - function ready(cb){ - _inputStream.play(); - cb(); - } - - function initCanvas() { - if (typeof document !== "undefined") { - var $viewport = document.querySelector("#interactive.viewport"); - _canvasContainer.dom.image = document.querySelector("canvas.imgBuffer"); - if (!_canvasContainer.dom.image) { - _canvasContainer.dom.image = document.createElement("canvas"); - _canvasContainer.dom.image.className = "imgBuffer"; - if ($viewport && _config.inputStream.type == "ImageStream") { - $viewport.appendChild(_canvasContainer.dom.image); - } - } - _canvasContainer.ctx.image = _canvasContainer.dom.image.getContext("2d"); - _canvasContainer.dom.image.width = _inputStream.getCanvasSize().x; - _canvasContainer.dom.image.height = _inputStream.getCanvasSize().y; - - _canvasContainer.dom.overlay = document.querySelector("canvas.drawingBuffer"); - if (!_canvasContainer.dom.overlay) { - _canvasContainer.dom.overlay = document.createElement("canvas"); - _canvasContainer.dom.overlay.className = "drawingBuffer"; - if ($viewport) { - $viewport.appendChild(_canvasContainer.dom.overlay); - } - var clearFix = document.createElement("br"); - 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{\n\t _inputStream.trigger(\"canrecord\");\n\t } else {\n\t return cb(err);\n\t }\n\t });\n\t }\n\t\n\t _inputStream.setAttribute(\"preload\", \"auto\");\n\t _inputStream.setAttribute(\"autoplay\", true);\n\t _inputStream.setInputStream(_config.inputStream);\n\t _inputStream.addEventListener(\"canrecord\", canRecord.bind(undefined, cb));\n\t}\n\t\n\tfunction canRecord(cb) {\n\t _barcode_locator2['default'].checkImageConstraints(_inputStream, _config.locator);\n\t initCanvas();\n\t _framegrabber = _frame_grabber2['default'].create(_inputStream, _canvasContainer.dom.image);\n\t initConfig();\n\t\n\t if (_config.numOfWorkers > 0) {\n\t initWorkers(function () {\n\t console.log(\"Workers created\");\n\t ready(cb);\n\t });\n\t } else {\n\t initializeData();\n\t ready(cb);\n\t }\n\t}\n\t\n\tfunction ready(cb) {\n\t _inputStream.play();\n\t cb();\n\t}\n\t\n\tfunction initCanvas() {\n\t if (typeof document !== \"undefined\") {\n\t var $viewport = document.querySelector(\"#interactive.viewport\");\n\t _canvasContainer.dom.image = document.querySelector(\"canvas.imgBuffer\");\n\t if (!_canvasContainer.dom.image) {\n\t _canvasContainer.dom.image = document.createElement(\"canvas\");\n\t _canvasContainer.dom.image.className = \"imgBuffer\";\n\t if ($viewport && _config.inputStream.type == \"ImageStream\") {\n\t $viewport.appendChild(_canvasContainer.dom.image);\n\t }\n\t }\n\t _canvasContainer.ctx.image = _canvasContainer.dom.image.getContext(\"2d\");\n\t _canvasContainer.dom.image.width = _inputStream.getCanvasSize().x;\n\t _canvasContainer.dom.image.height = _inputStream.getCanvasSize().y;\n\t\n\t _canvasContainer.dom.overlay = document.querySelector(\"canvas.drawingBuffer\");\n\t if (!_canvasContainer.dom.overlay) {\n\t _canvasContainer.dom.overlay = document.createElement(\"canvas\");\n\t _canvasContainer.dom.overlay.className = \"drawingBuffer\";\n\t if ($viewport) {\n\t $viewport.appendChild(_canvasContainer.dom.overlay);\n\t }\n\t var clearFix = document.createElement(\"br\");\n\t clearFix.setAttribute(\"clear\", \"all\");\n\t if ($viewport) {\n\t $viewport.appendChild(clearFix);\n\t }\n\t }\n\t _canvasContainer.ctx.overlay = _canvasContainer.dom.overlay.getContext(\"2d\");\n\t _canvasContainer.dom.overlay.width = _inputStream.getCanvasSize().x;\n\t _canvasContainer.dom.overlay.height = _inputStream.getCanvasSize().y;\n\t }\n\t}\n\t\n\tfunction initBuffers(imageWrapper) {\n\t if (imageWrapper) {\n\t _inputImageWrapper = imageWrapper;\n\t } else {\n\t _inputImageWrapper = new _image_wrapper2['default']({\n\t x: _inputStream.getWidth(),\n\t y: _inputStream.getHeight()\n\t });\n\t }\n\t\n\t console.log(_inputImageWrapper.size);\n\t _boxSize = [_glMatrix.vec2.clone([0, 0]), _glMatrix.vec2.clone([0, _inputImageWrapper.size.y]), _glMatrix.vec2.clone([_inputImageWrapper.size.x, _inputImageWrapper.size.y]), _glMatrix.vec2.clone([_inputImageWrapper.size.x, 0])];\n\t _barcode_locator2['default'].init(_inputImageWrapper, _config.locator);\n\t}\n\t\n\tfunction getBoundingBoxes() {\n\t if (_config.locate) {\n\t return _barcode_locator2['default'].locate();\n\t } else {\n\t return [[_glMatrix.vec2.clone(_boxSize[0]), _glMatrix.vec2.clone(_boxSize[1]), _glMatrix.vec2.clone(_boxSize[2]), _glMatrix.vec2.clone(_boxSize[3])]];\n\t }\n\t}\n\t\n\tfunction transformResult(result) {\n\t var topRight = _inputStream.getTopRight(),\n\t xOffset = topRight.x,\n\t yOffset = topRight.y,\n\t i;\n\t\n\t if (!result || xOffset === 0 && yOffset === 0) {\n\t return;\n\t }\n\t\n\t if (result.line && result.line.length === 2) {\n\t moveLine(result.line);\n\t }\n\t if (result.boxes && result.boxes.length > 0) {\n\t for (i = 0; i < result.boxes.length; i++) {\n\t moveBox(result.boxes[i]);\n\t }\n\t }\n\t\n\t function moveBox(box) {\n\t var corner = box.length;\n\t\n\t while (corner--) {\n\t box[corner][0] += xOffset;\n\t box[corner][1] += yOffset;\n\t }\n\t }\n\t\n\t function moveLine(line) {\n\t line[0].x += xOffset;\n\t line[0].y += yOffset;\n\t line[1].x += xOffset;\n\t line[1].y += yOffset;\n\t }\n\t}\n\t\n\tfunction publishResult(result, imageData) {\n\t if (_onUIThread) {\n\t transformResult(result);\n\t if (imageData && result && result.codeResult) {\n\t if (_resultCollector) {\n\t _resultCollector.addResult(imageData, _inputStream.getCanvasSize(), result.codeResult);\n\t }\n\t }\n\t }\n\t\n\t _events2['default'].publish(\"processed\", result);\n\t if (result && result.codeResult) {\n\t _events2['default'].publish(\"detected\", result);\n\t }\n\t}\n\t\n\tfunction locateAndDecode() {\n\t var result, boxes;\n\t\n\t boxes = getBoundingBoxes();\n\t if (boxes) {\n\t result = _decoder.decodeFromBoundingBoxes(boxes);\n\t result = result || {};\n\t result.boxes = boxes;\n\t publishResult(result, _inputImageWrapper.data);\n\t } else {\n\t publishResult();\n\t }\n\t}\n\t\n\tfunction update() {\n\t var availableWorker;\n\t\n\t if (_onUIThread) {\n\t if (_workerPool.length > 0) {\n\t availableWorker = _workerPool.filter(function (workerThread) {\n\t return !workerThread.busy;\n\t })[0];\n\t if (availableWorker) {\n\t _framegrabber.attachData(availableWorker.imageData);\n\t } else {\n\t return; // all workers are busy\n\t }\n\t } else {\n\t _framegrabber.attachData(_inputImageWrapper.data);\n\t }\n\t if (_framegrabber.grab()) {\n\t if (availableWorker) {\n\t availableWorker.busy = true;\n\t availableWorker.worker.postMessage({\n\t cmd: 'process',\n\t imageData: availableWorker.imageData\n\t }, [availableWorker.imageData.buffer]);\n\t } else {\n\t locateAndDecode();\n\t }\n\t }\n\t } else {\n\t locateAndDecode();\n\t }\n\t}\n\t\n\tfunction _start() {\n\t _stopped = false;\n\t (function frame() {\n\t if (!_stopped) {\n\t update();\n\t if (_onUIThread && _config.inputStream.type == \"LiveStream\") {\n\t window.requestAnimFrame(frame);\n\t }\n\t }\n\t })();\n\t}\n\t\n\tfunction initWorkers(cb) {\n\t var i;\n\t _workerPool = [];\n\t\n\t for (i = 0; i < _config.numOfWorkers; i++) {\n\t initWorker(workerInitialized);\n\t }\n\t\n\t function workerInitialized(workerThread) {\n\t _workerPool.push(workerThread);\n\t if (_workerPool.length >= _config.numOfWorkers) {\n\t cb();\n\t }\n\t }\n\t}\n\t\n\tfunction initWorker(cb) {\n\t var blobURL,\n\t workerThread = {\n\t worker: undefined,\n\t imageData: new Uint8Array(_inputStream.getWidth() * _inputStream.getHeight()),\n\t busy: true\n\t };\n\t\n\t blobURL = generateWorkerBlob();\n\t workerThread.worker = new Worker(blobURL);\n\t\n\t workerThread.worker.onmessage = function (e) {\n\t if (e.data.event === 'initialized') {\n\t URL.revokeObjectURL(blobURL);\n\t workerThread.busy = false;\n\t workerThread.imageData = new Uint8Array(e.data.imageData);\n\t console.log(\"Worker initialized\");\n\t return cb(workerThread);\n\t } else if (e.data.event === 'processed') {\n\t workerThread.imageData = new Uint8Array(e.data.imageData);\n\t workerThread.busy = false;\n\t publishResult(e.data.result, workerThread.imageData);\n\t } else if (e.data.event === 'error') {\n\t console.log(\"Worker error: \" + e.data.message);\n\t }\n\t };\n\t\n\t workerThread.worker.postMessage({\n\t cmd: 'init',\n\t size: { x: _inputStream.getWidth(), y: _inputStream.getHeight() },\n\t imageData: workerThread.imageData,\n\t config: _config\n\t }, [workerThread.imageData.buffer]);\n\t}\n\t\n\tfunction workerInterface(factory) {\n\t window = self;\n\t if (factory) {\n\t /* jshint ignore:start */\n\t var Quagga = factory();\n\t if (!Quagga) {\n\t self.postMessage({ 'event': 'error', message: 'Quagga could not be created' });\n\t return;\n\t }\n\t /* jshint ignore:end */\n\t }\n\t /* jshint ignore:start */\n\t var imageWrapper;\n\t\n\t self.onmessage = function (e) {\n\t if (e.data.cmd === 'init') {\n\t var config = e.data.config;\n\t config.numOfWorkers = 0;\n\t imageWrapper = new Quagga.ImageWrapper({\n\t x: e.data.size.x,\n\t y: e.data.size.y\n\t }, new Uint8Array(e.data.imageData));\n\t Quagga.init(config, ready, imageWrapper);\n\t Quagga.onProcessed(onProcessed);\n\t } else if (e.data.cmd === 'process') {\n\t imageWrapper.data = new Uint8Array(e.data.imageData);\n\t Quagga.start();\n\t } else if (e.data.cmd === 'setReaders') {\n\t Quagga.setReaders(e.data.readers);\n\t }\n\t };\n\t\n\t function onProcessed(result) {\n\t self.postMessage({ 'event': 'processed', imageData: imageWrapper.data, result: result }, [imageWrapper.data.buffer]);\n\t }\n\t\n\t function ready() {\n\t self.postMessage({ 'event': 'initialized', imageData: imageWrapper.data }, [imageWrapper.data.buffer]);\n\t }\n\t /* jshint ignore:end */\n\t}\n\t\n\tfunction generateWorkerBlob() {\n\t var blob, factorySource;\n\t\n\t /* jshint ignore:start */\n\t if (typeof __factorySource__ !== 'undefined') {\n\t factorySource = __factorySource__;\n\t }\n\t /* jshint ignore:end */\n\t\n\t blob = new Blob(['(' + workerInterface.toString() + ')(' + factorySource + ');'], { type: 'text/javascript' });\n\t\n\t return window.URL.createObjectURL(blob);\n\t}\n\t\n\tfunction _setReaders(readers) {\n\t if (_decoder) {\n\t _decoder.setReaders(readers);\n\t } else if (_onUIThread && _workerPool.length > 0) {\n\t _workerPool.forEach(function (workerThread) {\n\t workerThread.worker.postMessage({ cmd: 'setReaders', readers: readers });\n\t });\n\t }\n\t}\n\t\n\texports['default'] = {\n\t init: function init(config, cb, imageWrapper) {\n\t _config = merge({}, _config3['default'], config);\n\t if (imageWrapper) {\n\t _onUIThread = false;\n\t initializeData(imageWrapper);\n\t return cb();\n\t } else {\n\t initInputStream(cb);\n\t }\n\t },\n\t start: function start() {\n\t _start();\n\t },\n\t stop: function stop() {\n\t _stopped = true;\n\t _workerPool.forEach(function (workerThread) {\n\t workerThread.worker.terminate();\n\t console.log(\"Worker terminated!\");\n\t });\n\t _workerPool.length = 0;\n\t if (_config.inputStream.type === \"LiveStream\") {\n\t _camera_access2['default'].release();\n\t _inputStream.clearEventHandlers();\n\t }\n\t },\n\t pause: function pause() {\n\t _stopped = true;\n\t },\n\t onDetected: function onDetected(callback) {\n\t _events2['default'].subscribe(\"detected\", callback);\n\t },\n\t offDetected: function offDetected(callback) {\n\t _events2['default'].unsubscribe(\"detected\", callback);\n\t },\n\t onProcessed: function onProcessed(callback) {\n\t _events2['default'].subscribe(\"processed\", callback);\n\t },\n\t offProcessed: function offProcessed(callback) {\n\t _events2['default'].unsubscribe(\"processed\", callback);\n\t },\n\t setReaders: function setReaders(readers) {\n\t _setReaders(readers);\n\t },\n\t registerResultCollector: function registerResultCollector(resultCollector) {\n\t if (resultCollector && typeof resultCollector.addResult === 'function') {\n\t _resultCollector = resultCollector;\n\t }\n\t },\n\t canvas: _canvasContainer,\n\t decodeSingle: function decodeSingle(config, resultCallback) {\n\t config = merge({\n\t inputStream: {\n\t type: \"ImageStream\",\n\t sequence: false,\n\t size: 800,\n\t src: config.src\n\t },\n\t numOfWorkers: 1,\n\t locator: {\n\t halfSample: false\n\t }\n\t }, config);\n\t this.init(config, function () {\n\t _events2['default'].once(\"processed\", function (result) {\n\t _stopped = true;\n\t resultCallback.call(null, result);\n\t }, true);\n\t _start();\n\t });\n\t },\n\t ImageWrapper: _image_wrapper2['default'],\n\t ImageDebug: _image_debug2['default'],\n\t ResultCollector: _result_collector2['default']\n\t};\n\tmodule.exports = exports['default'];\n\n/***/ },\n/* 2 */\n/***/ function(module, exports) {\n\n\t/*\n\t * typedefs.js\n\t * Normalizes browser-specific prefixes\n\t */\n\t\n\t'use strict';\n\t\n\tObject.defineProperty(exports, '__esModule', {\n\t value: true\n\t});\n\tif (typeof window !== 'undefined') {\n\t window.requestAnimFrame = (function () {\n\t return window.requestAnimationFrame || window.webkitRequestAnimationFrame || window.mozRequestAnimationFrame || window.oRequestAnimationFrame || window.msRequestAnimationFrame || function ( /* function FrameRequestCallback */callback, /* DOMElement Element */element) {\n\t window.setTimeout(callback, 1000 / 60);\n\t };\n\t })();\n\t\n\t navigator.getUserMedia = navigator.getUserMedia || navigator.webkitGetUserMedia || navigator.mozGetUserMedia || navigator.msGetUserMedia;\n\t window.URL = window.URL || window.webkitURL || window.mozURL || window.msURL;\n\t}\n\tMath.imul = Math.imul || function (a, b) {\n\t var ah = a >>> 16 & 0xffff,\n\t al = a & 0xffff,\n\t bh = b >>> 16 & 0xffff,\n\t bl = b & 0xffff;\n\t // the shift by 0 fixes the sign on the high part\n\t // the final |0 converts the unsigned value into a signed value\n\t return al * bl + (ah * bl + al * bh << 16 >>> 0) | 0;\n\t};\n\t\n\texports['default'] = {};\n\tmodule.exports = exports['default'];\n\n/***/ },\n/* 3 */\n/***/ function(module, exports, __webpack_require__) {\n\n\t'use strict';\n\t\n\tObject.defineProperty(exports, '__esModule', {\n\t value: true\n\t});\n\t\n\tfunction _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }\n\t\n\tvar _image_loader = __webpack_require__(4);\n\t\n\tvar _image_loader2 = _interopRequireDefault(_image_loader);\n\t\n\tvar InputStream = {};\n\tInputStream.createVideoStream = function (video) {\n\t var that = {},\n\t _config = null,\n\t _eventNames = ['canrecord', 'ended'],\n\t _eventHandlers = {},\n\t _calculatedWidth,\n\t _calculatedHeight,\n\t _topRight = { x: 0, y: 0 },\n\t _canvasSize = { x: 0, y: 0 };\n\t\n\t function initSize() {\n\t var width = video.videoWidth,\n\t height = video.videoHeight;\n\t\n\t _calculatedWidth = _config.size ? width / height > 1 ? _config.size : Math.floor(width / height * _config.size) : width;\n\t _calculatedHeight = _config.size ? width / height > 1 ? Math.floor(height / width * _config.size) : _config.size : height;\n\t\n\t _canvasSize.x = _calculatedWidth;\n\t _canvasSize.y = _calculatedHeight;\n\t }\n\t\n\t that.getRealWidth = function () {\n\t return video.videoWidth;\n\t };\n\t\n\t that.getRealHeight = function () {\n\t return video.videoHeight;\n\t };\n\t\n\t that.getWidth = function () {\n\t return _calculatedWidth;\n\t };\n\t\n\t that.getHeight = function () {\n\t return _calculatedHeight;\n\t };\n\t\n\t that.setWidth = function (width) {\n\t _calculatedWidth = width;\n\t };\n\t\n\t that.setHeight = function (height) {\n\t _calculatedHeight = height;\n\t };\n\t\n\t that.setInputStream = function (config) {\n\t _config = config;\n\t video.src = typeof config.src !== 'undefined' ? config.src : '';\n\t };\n\t\n\t that.ended = function () {\n\t return video.ended;\n\t };\n\t\n\t that.getConfig = function () {\n\t return _config;\n\t };\n\t\n\t that.setAttribute = function (name, value) {\n\t video.setAttribute(name, value);\n\t };\n\t\n\t that.pause = function () {\n\t video.pause();\n\t };\n\t\n\t that.play = function () {\n\t video.play();\n\t };\n\t\n\t that.setCurrentTime = function (time) {\n\t if (_config.type !== \"LiveStream\") video.currentTime = time;\n\t };\n\t\n\t that.addEventListener = function (event, f, bool) {\n\t if (_eventNames.indexOf(event) !== -1) {\n\t if (!_eventHandlers[event]) {\n\t _eventHandlers[event] = [];\n\t }\n\t _eventHandlers[event].push(f);\n\t } else {\n\t video.addEventListener(event, f, bool);\n\t }\n\t };\n\t\n\t that.clearEventHandlers = function () {\n\t _eventNames.forEach(function (eventName) {\n\t var handlers = _eventHandlers[eventName];\n\t if (handlers && handlers.length > 0) {\n\t handlers.forEach(function (handler) {\n\t video.removeEventListener(eventName, handler);\n\t });\n\t }\n\t });\n\t };\n\t\n\t that.trigger = function (eventName, args) {\n\t var j,\n\t handlers = _eventHandlers[eventName];\n\t\n\t if (eventName === 'canrecord') {\n\t initSize();\n\t }\n\t if (handlers && handlers.length > 0) {\n\t for (j = 0; j < handlers.length; j++) {\n\t handlers[j].apply(that, args);\n\t }\n\t }\n\t };\n\t\n\t that.setTopRight = function (topRight) {\n\t _topRight.x = topRight.x;\n\t _topRight.y = topRight.y;\n\t };\n\t\n\t that.getTopRight = function () {\n\t return _topRight;\n\t };\n\t\n\t that.setCanvasSize = function (size) {\n\t _canvasSize.x = size.x;\n\t _canvasSize.y = size.y;\n\t };\n\t\n\t that.getCanvasSize = function () {\n\t return _canvasSize;\n\t };\n\t\n\t that.getFrame = function () {\n\t return video;\n\t };\n\t\n\t return that;\n\t};\n\t\n\tInputStream.createLiveStream = function (video) {\n\t video.setAttribute(\"autoplay\", true);\n\t var that = InputStream.createVideoStream(video);\n\t\n\t that.ended = function () {\n\t return false;\n\t };\n\t\n\t return that;\n\t};\n\t\n\tInputStream.createImageStream = function () {\n\t var that = {};\n\t var _config = null;\n\t\n\t var width = 0,\n\t height = 0,\n\t frameIdx = 0,\n\t paused = true,\n\t loaded = false,\n\t imgArray = null,\n\t size = 0,\n\t offset = 1,\n\t baseUrl = null,\n\t ended = false,\n\t calculatedWidth,\n\t calculatedHeight,\n\t _eventNames = ['canrecord', 'ended'],\n\t _eventHandlers = {},\n\t _topRight = { x: 0, y: 0 },\n\t _canvasSize = { x: 0, y: 0 };\n\t\n\t function loadImages() {\n\t loaded = false;\n\t _image_loader2['default'].load(baseUrl, function (imgs) {\n\t imgArray = imgs;\n\t width = imgs[0].width;\n\t height = imgs[0].height;\n\t calculatedWidth = _config.size ? width / height > 1 ? _config.size : Math.floor(width / height * _config.size) : width;\n\t calculatedHeight = _config.size ? width / height > 1 ? Math.floor(height / width * _config.size) : _config.size : height;\n\t _canvasSize.x = calculatedWidth;\n\t _canvasSize.y = calculatedHeight;\n\t loaded = true;\n\t frameIdx = 0;\n\t setTimeout(function () {\n\t publishEvent(\"canrecord\", []);\n\t }, 0);\n\t }, offset, size, _config.sequence);\n\t }\n\t\n\t function publishEvent(eventName, args) {\n\t var j,\n\t handlers = _eventHandlers[eventName];\n\t\n\t if (handlers && handlers.length > 0) {\n\t for (j = 0; j < handlers.length; j++) {\n\t handlers[j].apply(that, args);\n\t }\n\t }\n\t }\n\t\n\t that.trigger = publishEvent;\n\t\n\t that.getWidth = function () {\n\t return calculatedWidth;\n\t };\n\t\n\t that.getHeight = function () {\n\t return calculatedHeight;\n\t };\n\t\n\t that.setWidth = function (width) {\n\t calculatedWidth = width;\n\t };\n\t\n\t that.setHeight = function (height) {\n\t calculatedHeight = height;\n\t };\n\t\n\t that.getRealWidth = function () {\n\t return width;\n\t };\n\t\n\t that.getRealHeight = function () {\n\t return height;\n\t };\n\t\n\t that.setInputStream = function (stream) {\n\t _config = stream;\n\t if (stream.sequence === false) {\n\t baseUrl = stream.src;\n\t size = 1;\n\t } else {\n\t baseUrl = stream.src;\n\t size = stream.length;\n\t }\n\t loadImages();\n\t };\n\t\n\t that.ended = function () {\n\t return ended;\n\t };\n\t\n\t that.setAttribute = function () {};\n\t\n\t that.getConfig = function () {\n\t return _config;\n\t };\n\t\n\t that.pause = function () {\n\t paused = true;\n\t };\n\t\n\t that.play = function () {\n\t paused = false;\n\t };\n\t\n\t that.setCurrentTime = function (time) {\n\t frameIdx = time;\n\t };\n\t\n\t that.addEventListener = function (event, f) {\n\t if (_eventNames.indexOf(event) !== -1) {\n\t if (!_eventHandlers[event]) {\n\t _eventHandlers[event] = [];\n\t }\n\t _eventHandlers[event].push(f);\n\t }\n\t };\n\t\n\t that.setTopRight = function (topRight) {\n\t _topRight.x = topRight.x;\n\t _topRight.y = topRight.y;\n\t };\n\t\n\t that.getTopRight = function () {\n\t return _topRight;\n\t };\n\t\n\t that.setCanvasSize = function (size) {\n\t _canvasSize.x = size.x;\n\t _canvasSize.y = size.y;\n\t };\n\t\n\t that.getCanvasSize = function () {\n\t return _canvasSize;\n\t };\n\t\n\t that.getFrame = function () {\n\t var frame;\n\t\n\t if (!loaded) {\n\t return null;\n\t }\n\t if (!paused) {\n\t frame = imgArray[frameIdx];\n\t if (frameIdx < size - 1) {\n\t frameIdx++;\n\t } else {\n\t setTimeout(function () {\n\t ended = true;\n\t publishEvent(\"ended\", []);\n\t }, 0);\n\t }\n\t }\n\t return frame;\n\t };\n\t\n\t return that;\n\t};\n\t\n\texports['default'] = InputStream;\n\tmodule.exports = exports['default'];\n\n/***/ },\n/* 4 */\n/***/ function(module, exports) {\n\n\t\"use strict\";\n\t\n\tObject.defineProperty(exports, \"__esModule\", {\n\t value: true\n\t});\n\tvar ImageLoader = {};\n\tImageLoader.load = function (directory, callback, offset, size, sequence) {\n\t var htmlImagesSrcArray = new Array(size),\n\t htmlImagesArray = new Array(htmlImagesSrcArray.length),\n\t i,\n\t img,\n\t num;\n\t\n\t if (sequence === false) {\n\t htmlImagesSrcArray[0] = directory;\n\t } else {\n\t for (i = 0; i < htmlImagesSrcArray.length; i++) {\n\t num = offset + i;\n\t htmlImagesSrcArray[i] = directory + \"image-\" + (\"00\" + num).slice(-3) + \".jpg\";\n\t }\n\t }\n\t htmlImagesArray.notLoaded = [];\n\t htmlImagesArray.addImage = function (img) {\n\t htmlImagesArray.notLoaded.push(img);\n\t };\n\t htmlImagesArray.loaded = function (loadedImg) {\n\t var notloadedImgs = htmlImagesArray.notLoaded;\n\t for (var x = 0; x < notloadedImgs.length; x++) {\n\t if (notloadedImgs[x] == loadedImg) {\n\t notloadedImgs.splice(x, 1);\n\t for (var y = 0; y < htmlImagesSrcArray.length; y++) {\n\t var imgName = htmlImagesSrcArray[y].substr(htmlImagesSrcArray[y].lastIndexOf(\"/\"));\n\t if (loadedImg.src.lastIndexOf(imgName) != -1) {\n\t htmlImagesArray[y] = loadedImg;\n\t break;\n\t }\n\t }\n\t break;\n\t }\n\t }\n\t if (notloadedImgs.length === 0) {\n\t console.log(\"Images loaded\");\n\t callback.apply(null, [htmlImagesArray]);\n\t }\n\t };\n\t\n\t for (i = 0; i < htmlImagesSrcArray.length; i++) {\n\t img = new Image();\n\t htmlImagesArray.addImage(img);\n\t addOnloadHandler(img, htmlImagesArray);\n\t img.src = htmlImagesSrcArray[i];\n\t }\n\t};\n\t\n\tfunction addOnloadHandler(img, htmlImagesArray) {\n\t img.onload = function () {\n\t htmlImagesArray.loaded(this);\n\t };\n\t}\n\t\n\texports[\"default\"] = ImageLoader;\n\tmodule.exports = exports[\"default\"];\n\n/***/ },\n/* 5 */\n/***/ function(module, exports, __webpack_require__) {\n\n\t'use strict';\n\t\n\tObject.defineProperty(exports, '__esModule', {\n\t value: true\n\t});\n\t\n\tfunction _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }\n\t\n\tvar _subImage = __webpack_require__(6);\n\t\n\tvar _subImage2 = _interopRequireDefault(_subImage);\n\t\n\tvar _cv_utils = __webpack_require__(7);\n\t\n\tvar _cv_utils2 = _interopRequireDefault(_cv_utils);\n\t\n\tvar _array_helper = __webpack_require__(19);\n\t\n\tvar _array_helper2 = _interopRequireDefault(_array_helper);\n\t\n\tvar _glMatrix = __webpack_require__(9);\n\t\n\t/**\n\t * Represents a basic image combining the data and size.\n\t * In addition, some methods for manipulation are contained.\n\t * @param size {x,y} The size of the image in pixel\n\t * @param data {Array} If given, a flat array containing the pixel data\n\t * @param ArrayType {Type} If given, the desired DataType of the Array (may be typed/non-typed)\n\t * @param initialize {Boolean} Indicating if the array should be initialized on creation.\n\t * @returns {ImageWrapper}\n\t */\n\tfunction ImageWrapper(size, data, ArrayType, initialize) {\n\t if (!data) {\n\t if (ArrayType) {\n\t this.data = new ArrayType(size.x * size.y);\n\t if (ArrayType === Array && initialize) {\n\t _array_helper2['default'].init(this.data, 0);\n\t }\n\t } else {\n\t this.data = new Uint8Array(size.x * size.y);\n\t if (Uint8Array === Array && initialize) {\n\t _array_helper2['default'].init(this.data, 0);\n\t }\n\t }\n\t } else {\n\t this.data = data;\n\t }\n\t this.size = size;\n\t}\n\t\n\t/**\n\t * tests if a position is within the image with a given offset\n\t * @param imgRef {x, y} The location to test\n\t * @param border Number the padding value in pixel\n\t * @returns {Boolean} true if location inside the image's border, false otherwise\n\t * @see cvd/image.h\n\t */\n\tImageWrapper.prototype.inImageWithBorder = function (imgRef, border) {\n\t return imgRef.x >= border && imgRef.y >= border && imgRef.x < this.size.x - border && imgRef.y < this.size.y - border;\n\t};\n\t\n\t/**\n\t * Transforms an image according to the given affine-transformation matrix.\n\t * @param inImg ImageWrapper a image containing the information to be extracted.\n\t * @param outImg ImageWrapper the image to be filled. The whole image out image is filled by the in image.\n\t * @param M mat2 the matrix used to map point in the out matrix to those in the in matrix\n\t * @param inOrig vec2 origin in the in image\n\t * @param outOrig vec2 origin in the out image\n\t * @returns Number the number of pixels not in the in image\n\t * @see cvd/vision.h\n\t */\n\tImageWrapper.transform = function (inImg, outImg, M, inOrig, outOrig) {\n\t var w = outImg.size.x,\n\t h = outImg.size.y,\n\t iw = inImg.size.x,\n\t ih = inImg.size.y;\n\t var across = _glMatrix.vec2.clone([M[0], M[2]]);\n\t var down = _glMatrix.vec2.clone([M[1], M[3]]);\n\t var defaultValue = 0;\n\t\n\t var p0 = _glMatrix.vec2.subtract(inOrig, _glMatrix.mat2.xVec2(M, outOrig, _glMatrix.vec2.clone()), _glMatrix.vec2.clone());\n\t\n\t var min_x = p0[0],\n\t min_y = p0[1];\n\t var max_x = min_x,\n\t max_y = min_y;\n\t var p, i, j;\n\t\n\t var sampleFunc = ImageWrapper.sample;\n\t\n\t if (across[0] < 0) min_x += w * across[0];else max_x += w * across[0];\n\t\n\t if (down[0] < 0) min_x += h * down[0];else max_x += h * down[0];\n\t\n\t if (across[1] < 0) min_y += w * across[1];else max_y += w * across[1];\n\t\n\t if (down[1] < 0) min_y += h * down[1];else max_y += h * down[1];\n\t\n\t var carrigeReturn = _glMatrix.vec2.subtract(down, _glMatrix.vec2.scale(across, w, _glMatrix.vec2.clone()), _glMatrix.vec2.clone());\n\t\n\t if (min_x >= 0 && min_y >= 0 && max_x < iw - 1 && max_y < ih - 1) {\n\t p = p0;\n\t for (i = 0; i < h; ++i, _glMatrix.vec2.add(p, carrigeReturn)) for (j = 0; j < w; ++j, _glMatrix.vec2.add(p, across)) outImg.set(j, i, sampleFunc(inImg, p[0], p[1]));\n\t return 0;\n\t } else {\n\t var x_bound = iw - 1;\n\t var y_bound = ih - 1;\n\t var count = 0;\n\t p = p0;\n\t for (i = 0; i < h; ++i, _glMatrix.vec2.add(p, carrigeReturn)) {\n\t for (j = 0; j < w; ++j, _glMatrix.vec2.add(p, across)) {\n\t if (0 <= p[0] && 0 <= p[1] && p[0] < x_bound && p[1] < y_bound) {\n\t outImg.set(j, i, sampleFunc(inImg, p[0], p[1]));\n\t } else {\n\t outImg.set(j, i, defaultValue);++count;\n\t }\n\t }\n\t }\n\t return count;\n\t }\n\t};\n\t\n\t/**\n\t * Performs bilinear sampling\n\t * @param inImg Image to extract sample from\n\t * @param x the x-coordinate\n\t * @param y the y-coordinate\n\t * @returns the sampled value\n\t * @see cvd/vision.h\n\t */\n\tImageWrapper.sample = function (inImg, x, y) {\n\t var lx = Math.floor(x);\n\t var ly = Math.floor(y);\n\t var w = inImg.size.x;\n\t var base = ly * inImg.size.x + lx;\n\t var a = inImg.data[base + 0];\n\t var b = inImg.data[base + 1];\n\t var c = inImg.data[base + w];\n\t var d = inImg.data[base + w + 1];\n\t var e = a - b;\n\t x -= lx;\n\t y -= ly;\n\t\n\t var result = Math.floor(x * (y * (e - c + d) - e) + y * (c - a) + a);\n\t return result;\n\t};\n\t\n\t/**\n\t * Initializes a given array. Sets each element to zero.\n\t * @param array {Array} The array to initialize\n\t */\n\tImageWrapper.clearArray = function (array) {\n\t var l = array.length;\n\t while (l--) {\n\t array[l] = 0;\n\t }\n\t};\n\t\n\t/**\n\t * Creates a {SubImage} from the current image ({this}).\n\t * @param from {ImageRef} The position where to start the {SubImage} from. (top-left corner)\n\t * @param size {ImageRef} The size of the resulting image\n\t * @returns {SubImage} A shared part of the original image\n\t */\n\tImageWrapper.prototype.subImage = function (from, size) {\n\t return new _subImage2['default'](from, size, this);\n\t};\n\t\n\t/**\n\t * Creates an {ImageWrapper) and copies the needed underlying image-data area\n\t * @param imageWrapper {ImageWrapper} The target {ImageWrapper} where the data should be copied\n\t * @param from {ImageRef} The location where to copy from (top-left location)\n\t */\n\tImageWrapper.prototype.subImageAsCopy = function (imageWrapper, from) {\n\t var sizeY = imageWrapper.size.y,\n\t sizeX = imageWrapper.size.x;\n\t var x, y;\n\t for (x = 0; x < sizeX; x++) {\n\t for (y = 0; y < sizeY; y++) {\n\t imageWrapper.data[y * sizeX + x] = this.data[(from.y + y) * this.size.x + from.x + x];\n\t }\n\t }\n\t};\n\t\n\tImageWrapper.prototype.copyTo = function (imageWrapper) {\n\t var length = this.data.length,\n\t srcData = this.data,\n\t dstData = imageWrapper.data;\n\t\n\t while (length--) {\n\t dstData[length] = srcData[length];\n\t }\n\t};\n\t\n\t/**\n\t * Retrieves a given pixel position from the image\n\t * @param x {Number} The x-position\n\t * @param y {Number} The y-position\n\t * @returns {Number} The grayscale value at the pixel-position\n\t */\n\tImageWrapper.prototype.get = function (x, y) {\n\t return this.data[y * this.size.x + x];\n\t};\n\t\n\t/**\n\t * Retrieves a given pixel position from the image\n\t * @param x {Number} The x-position\n\t * @param y {Number} The y-position\n\t * @returns {Number} The grayscale value at the pixel-position\n\t */\n\tImageWrapper.prototype.getSafe = function (x, y) {\n\t var i;\n\t\n\t if (!this.indexMapping) {\n\t this.indexMapping = {\n\t x: [],\n\t y: []\n\t };\n\t for (i = 0; i < this.size.x; i++) {\n\t this.indexMapping.x[i] = i;\n\t this.indexMapping.x[i + this.size.x] = i;\n\t }\n\t for (i = 0; i < this.size.y; i++) {\n\t this.indexMapping.y[i] = i;\n\t this.indexMapping.y[i + this.size.y] = i;\n\t }\n\t }\n\t return this.data[this.indexMapping.y[y + this.size.y] * this.size.x + this.indexMapping.x[x + this.size.x]];\n\t};\n\t\n\t/**\n\t * Sets a given pixel position in the image\n\t * @param x {Number} The x-position\n\t * @param y {Number} The y-position\n\t * @param value {Number} The grayscale value to set\n\t * @returns {ImageWrapper} The Image itself (for possible chaining)\n\t */\n\tImageWrapper.prototype.set = function (x, y, value) {\n\t this.data[y * this.size.x + x] = value;\n\t return this;\n\t};\n\t\n\t/**\n\t * Sets the border of the image (1 pixel) to zero\n\t */\n\tImageWrapper.prototype.zeroBorder = function () {\n\t var i,\n\t width = this.size.x,\n\t height = this.size.y,\n\t data = this.data;\n\t for (i = 0; i < width; i++) {\n\t data[i] = data[(height - 1) * width + i] = 0;\n\t }\n\t for (i = 1; i < height - 1; i++) {\n\t data[i * width] = data[i * width + (width - 1)] = 0;\n\t }\n\t};\n\t\n\t/**\n\t * Inverts a binary image in place\n\t */\n\tImageWrapper.prototype.invert = function () {\n\t var data = this.data,\n\t length = data.length;\n\t\n\t while (length--) {\n\t data[length] = data[length] ? 0 : 1;\n\t }\n\t};\n\t\n\tImageWrapper.prototype.convolve = function (kernel) {\n\t var x,\n\t y,\n\t kx,\n\t ky,\n\t kSize = kernel.length / 2 | 0,\n\t accu = 0;\n\t for (y = 0; y < this.size.y; y++) {\n\t for (x = 0; x < this.size.x; x++) {\n\t accu = 0;\n\t for (ky = -kSize; ky <= kSize; ky++) {\n\t for (kx = -kSize; kx <= kSize; kx++) {\n\t accu += kernel[ky + kSize][kx + kSize] * this.getSafe(x + kx, y + ky);\n\t }\n\t }\n\t this.data[y * this.size.x + x] = accu;\n\t }\n\t }\n\t};\n\t\n\tImageWrapper.prototype.moments = function (labelcount) {\n\t var data = this.data,\n\t x,\n\t y,\n\t height = this.size.y,\n\t width = this.size.x,\n\t val,\n\t ysq,\n\t labelsum = [],\n\t i,\n\t label,\n\t mu11,\n\t mu02,\n\t mu20,\n\t x_,\n\t y_,\n\t tmp,\n\t result = [],\n\t PI = Math.PI,\n\t PI_4 = PI / 4;\n\t\n\t if (labelcount <= 0) {\n\t return result;\n\t }\n\t\n\t for (i = 0; i < labelcount; i++) {\n\t labelsum[i] = {\n\t m00: 0,\n\t m01: 0,\n\t m10: 0,\n\t m11: 0,\n\t m02: 0,\n\t m20: 0,\n\t theta: 0,\n\t rad: 0\n\t };\n\t }\n\t\n\t for (y = 0; y < height; y++) {\n\t ysq = y * y;\n\t for (x = 0; x < width; x++) {\n\t val = data[y * width + x];\n\t if (val > 0) {\n\t label = labelsum[val - 1];\n\t label.m00 += 1;\n\t label.m01 += y;\n\t label.m10 += x;\n\t label.m11 += x * y;\n\t label.m02 += ysq;\n\t label.m20 += x * x;\n\t }\n\t }\n\t }\n\t\n\t for (i = 0; i < labelcount; i++) {\n\t label = labelsum[i];\n\t if (!isNaN(label.m00) && label.m00 !== 0) {\n\t x_ = label.m10 / label.m00;\n\t y_ = label.m01 / label.m00;\n\t mu11 = label.m11 / label.m00 - x_ * y_;\n\t mu02 = label.m02 / label.m00 - y_ * y_;\n\t mu20 = label.m20 / label.m00 - x_ * x_;\n\t tmp = (mu02 - mu20) / (2 * mu11);\n\t tmp = 0.5 * Math.atan(tmp) + (mu11 >= 0 ? PI_4 : -PI_4) + PI;\n\t label.theta = (tmp * 180 / PI + 90) % 180 - 90;\n\t if (label.theta < 0) {\n\t label.theta += 180;\n\t }\n\t label.rad = tmp > PI ? tmp - PI : tmp;\n\t label.vec = _glMatrix.vec2.clone([Math.cos(tmp), Math.sin(tmp)]);\n\t result.push(label);\n\t }\n\t }\n\t\n\t return result;\n\t};\n\t\n\t/**\n\t * Displays the {ImageWrapper} in a given canvas\n\t * @param canvas {Canvas} The canvas element to write to\n\t * @param scale {Number} Scale which is applied to each pixel-value\n\t */\n\tImageWrapper.prototype.show = function (canvas, scale) {\n\t var ctx, frame, data, current, pixel, x, y;\n\t\n\t if (!scale) {\n\t scale = 1.0;\n\t }\n\t ctx = canvas.getContext('2d');\n\t canvas.width = this.size.x;\n\t canvas.height = this.size.y;\n\t frame = ctx.getImageData(0, 0, canvas.width, canvas.height);\n\t data = frame.data;\n\t current = 0;\n\t for (y = 0; y < this.size.y; y++) {\n\t for (x = 0; x < this.size.x; x++) {\n\t pixel = y * this.size.x + x;\n\t current = this.get(x, y) * scale;\n\t data[pixel * 4 + 0] = current;\n\t data[pixel * 4 + 1] = current;\n\t data[pixel * 4 + 2] = current;\n\t data[pixel * 4 + 3] = 255;\n\t }\n\t }\n\t //frame.data = data;\n\t ctx.putImageData(frame, 0, 0);\n\t};\n\t\n\t/**\n\t * Displays the {SubImage} in a given canvas\n\t * @param canvas {Canvas} The canvas element to write to\n\t * @param scale {Number} Scale which is applied to each pixel-value\n\t */\n\tImageWrapper.prototype.overlay = function (canvas, scale, from) {\n\t if (!scale || scale < 0 || scale > 360) {\n\t scale = 360;\n\t }\n\t var hsv = [0, 1, 1];\n\t var rgb = [0, 0, 0];\n\t var whiteRgb = [255, 255, 255];\n\t var blackRgb = [0, 0, 0];\n\t var result = [];\n\t var ctx = canvas.getContext('2d');\n\t var frame = ctx.getImageData(from.x, from.y, this.size.x, this.size.y);\n\t var data = frame.data;\n\t var length = this.data.length;\n\t while (length--) {\n\t hsv[0] = this.data[length] * scale;\n\t result = hsv[0] <= 0 ? whiteRgb : hsv[0] >= 360 ? blackRgb : _cv_utils2['default'].hsv2rgb(hsv, rgb);\n\t data[length * 4 + 0] = result[0];\n\t data[length * 4 + 1] = result[1];\n\t data[length * 4 + 2] = result[2];\n\t data[length * 4 + 3] = 255;\n\t }\n\t ctx.putImageData(frame, from.x, from.y);\n\t};\n\t\n\texports['default'] = ImageWrapper;\n\tmodule.exports = exports['default'];\n\n/***/ },\n/* 6 */\n/***/ function(module, exports) {\n\n\t/**\n\t * Construct representing a part of another {ImageWrapper}. Shares data\n\t * between the parent and the child.\n\t * @param from {ImageRef} The position where to start the {SubImage} from. (top-left corner)\n\t * @param size {ImageRef} The size of the resulting image\n\t * @param I {ImageWrapper} The {ImageWrapper} to share from\n\t * @returns {SubImage} A shared part of the original image\n\t */\n\t'use strict';\n\t\n\tObject.defineProperty(exports, '__esModule', {\n\t value: true\n\t});\n\tfunction SubImage(from, size, I) {\n\t if (!I) {\n\t I = {\n\t data: null,\n\t size: size\n\t };\n\t }\n\t this.data = I.data;\n\t this.originalSize = I.size;\n\t this.I = I;\n\t\n\t this.from = from;\n\t this.size = size;\n\t}\n\t\n\t/**\n\t * Displays the {SubImage} in a given canvas\n\t * @param canvas {Canvas} The canvas element to write to\n\t * @param scale {Number} Scale which is applied to each pixel-value\n\t */\n\tSubImage.prototype.show = function (canvas, scale) {\n\t var ctx, frame, data, current, y, x, pixel;\n\t\n\t if (!scale) {\n\t scale = 1.0;\n\t }\n\t ctx = canvas.getContext('2d');\n\t canvas.width = this.size.x;\n\t canvas.height = this.size.y;\n\t frame = ctx.getImageData(0, 0, canvas.width, canvas.height);\n\t data = frame.data;\n\t current = 0;\n\t for (y = 0; y < this.size.y; y++) {\n\t for (x = 0; x < this.size.x; x++) {\n\t pixel = y * this.size.x + x;\n\t current = this.get(x, y) * scale;\n\t data[pixel * 4 + 0] = current;\n\t data[pixel * 4 + 1] = current;\n\t data[pixel * 4 + 2] = current;\n\t data[pixel * 4 + 3] = 255;\n\t }\n\t }\n\t frame.data = data;\n\t ctx.putImageData(frame, 0, 0);\n\t};\n\t\n\t/**\n\t * Retrieves a given pixel position from the {SubImage}\n\t * @param x {Number} The x-position\n\t * @param y {Number} The y-position\n\t * @returns {Number} The grayscale value at the pixel-position\n\t */\n\tSubImage.prototype.get = function (x, y) {\n\t return this.data[(this.from.y + y) * this.originalSize.x + this.from.x + x];\n\t};\n\t\n\t/**\n\t * Updates the underlying data from a given {ImageWrapper}\n\t * @param image {ImageWrapper} The updated image\n\t */\n\tSubImage.prototype.updateData = function (image) {\n\t this.originalSize = image.size;\n\t this.data = image.data;\n\t};\n\t\n\t/**\n\t * Updates the position of the shared area\n\t * @param from {x,y} The new location\n\t * @returns {SubImage} returns {this} for possible chaining\n\t */\n\tSubImage.prototype.updateFrom = function (from) {\n\t this.from = from;\n\t return this;\n\t};\n\t\n\texports['default'] = SubImage;\n\tmodule.exports = exports['default'];\n\n/***/ },\n/* 7 */\n/***/ function(module, exports, __webpack_require__) {\n\n\t'use strict';\n\t\n\tObject.defineProperty(exports, '__esModule', {\n\t value: true\n\t});\n\t\n\tfunction _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }\n\t\n\tvar _cluster = __webpack_require__(8);\n\t\n\tvar _cluster2 = _interopRequireDefault(_cluster);\n\t\n\tvar _array_helper = __webpack_require__(19);\n\t\n\tvar _array_helper2 = _interopRequireDefault(_array_helper);\n\t\n\tvar _glMatrix = __webpack_require__(9);\n\t\n\tvar CVUtils = {};\n\t\n\t/**\n\t * @param x x-coordinate\n\t * @param y y-coordinate\n\t * @return ImageReference {x,y} Coordinate\n\t */\n\tCVUtils.imageRef = function (x, y) {\n\t var that = {\n\t x: x,\n\t y: y,\n\t toVec2: function toVec2() {\n\t return _glMatrix.vec2.clone([this.x, this.y]);\n\t },\n\t toVec3: function toVec3() {\n\t return _glMatrix.vec3.clone([this.x, this.y, 1]);\n\t },\n\t round: function round() {\n\t this.x = this.x > 0.0 ? Math.floor(this.x + 0.5) : Math.floor(this.x - 0.5);\n\t this.y = this.y > 0.0 ? Math.floor(this.y + 0.5) : Math.floor(this.y - 0.5);\n\t return this;\n\t }\n\t };\n\t return that;\n\t};\n\t\n\t/**\n\t * Computes an integral image of a given grayscale image.\n\t * @param imageDataContainer {ImageDataContainer} the image to be integrated\n\t */\n\tCVUtils.computeIntegralImage2 = function (imageWrapper, integralWrapper) {\n\t var imageData = imageWrapper.data;\n\t var width = imageWrapper.size.x;\n\t var height = imageWrapper.size.y;\n\t var integralImageData = integralWrapper.data;\n\t var sum = 0,\n\t posA = 0,\n\t posB = 0,\n\t posC = 0,\n\t posD = 0,\n\t x,\n\t y;\n\t\n\t // sum up first column\n\t posB = width;\n\t sum = 0;\n\t for (y = 1; y < height; y++) {\n\t sum += imageData[posA];\n\t integralImageData[posB] += sum;\n\t posA += width;\n\t posB += width;\n\t }\n\t\n\t posA = 0;\n\t posB = 1;\n\t sum = 0;\n\t for (x = 1; x < width; x++) {\n\t sum += imageData[posA];\n\t integralImageData[posB] += sum;\n\t posA++;\n\t posB++;\n\t }\n\t\n\t for (y = 1; y < height; y++) {\n\t posA = y * width + 1;\n\t posB = (y - 1) * width + 1;\n\t posC = y * width;\n\t posD = (y - 1) * width;\n\t for (x = 1; x < width; x++) {\n\t integralImageData[posA] += imageData[posA] + integralImageData[posB] + integralImageData[posC] - integralImageData[posD];\n\t posA++;\n\t posB++;\n\t posC++;\n\t posD++;\n\t }\n\t }\n\t};\n\t\n\tCVUtils.computeIntegralImage = function (imageWrapper, integralWrapper) {\n\t var imageData = imageWrapper.data;\n\t var width = imageWrapper.size.x;\n\t var height = imageWrapper.size.y;\n\t var integralImageData = integralWrapper.data;\n\t var sum = 0;\n\t\n\t // sum up first row\n\t for (var i = 0; i < width; i++) {\n\t sum += imageData[i];\n\t integralImageData[i] = sum;\n\t }\n\t\n\t for (var v = 1; v < height; v++) {\n\t sum = 0;\n\t for (var u = 0; u < width; u++) {\n\t sum += imageData[v * width + u];\n\t integralImageData[v * width + u] = sum + integralImageData[(v - 1) * width + u];\n\t }\n\t }\n\t};\n\t\n\tCVUtils.thresholdImage = function (imageWrapper, threshold, targetWrapper) {\n\t if (!targetWrapper) {\n\t targetWrapper = imageWrapper;\n\t }\n\t var imageData = imageWrapper.data,\n\t length = imageData.length,\n\t targetData = targetWrapper.data;\n\t\n\t while (length--) {\n\t targetData[length] = imageData[length] < threshold ? 1 : 0;\n\t }\n\t};\n\t\n\tCVUtils.computeHistogram = function (imageWrapper, bitsPerPixel) {\n\t if (!bitsPerPixel) {\n\t bitsPerPixel = 8;\n\t }\n\t var imageData = imageWrapper.data,\n\t length = imageData.length,\n\t bitShift = 8 - bitsPerPixel,\n\t bucketCnt = 1 << bitsPerPixel,\n\t hist = new Int32Array(bucketCnt);\n\t\n\t while (length--) {\n\t hist[imageData[length] >> bitShift]++;\n\t }\n\t return hist;\n\t};\n\t\n\tCVUtils.sharpenLine = function (line) {\n\t var i,\n\t length = line.length,\n\t left = line[0],\n\t center = line[1],\n\t right;\n\t\n\t for (i = 1; i < length - 1; i++) {\n\t right = line[i + 1];\n\t // -1 4 -1 kernel\n\t line[i - 1] = center * 2 - left - right & 255;\n\t left = center;\n\t center = right;\n\t }\n\t return line;\n\t};\n\t\n\tCVUtils.determineOtsuThreshold = function (imageWrapper, bitsPerPixel) {\n\t if (!bitsPerPixel) {\n\t bitsPerPixel = 8;\n\t }\n\t var hist,\n\t threshold,\n\t bitShift = 8 - bitsPerPixel;\n\t\n\t function px(init, end) {\n\t var sum = 0,\n\t i;\n\t for (i = init; i <= end; i++) {\n\t sum += hist[i];\n\t }\n\t return sum;\n\t }\n\t\n\t function mx(init, end) {\n\t var i,\n\t sum = 0;\n\t\n\t for (i = init; i <= end; i++) {\n\t sum += i * hist[i];\n\t }\n\t\n\t return sum;\n\t }\n\t\n\t function determineThreshold() {\n\t var vet = [0],\n\t p1,\n\t p2,\n\t p12,\n\t k,\n\t m1,\n\t m2,\n\t m12,\n\t max = (1 << bitsPerPixel) - 1;\n\t\n\t hist = CVUtils.computeHistogram(imageWrapper, bitsPerPixel);\n\t for (k = 1; k < max; k++) {\n\t p1 = px(0, k);\n\t p2 = px(k + 1, max);\n\t p12 = p1 * p2;\n\t if (p12 === 0) {\n\t p12 = 1;\n\t }\n\t m1 = mx(0, k) * p2;\n\t m2 = mx(k + 1, max) * p1;\n\t m12 = m1 - m2;\n\t vet[k] = m12 * m12 / p12;\n\t }\n\t return _array_helper2['default'].maxIndex(vet);\n\t }\n\t\n\t threshold = determineThreshold();\n\t return threshold << bitShift;\n\t};\n\t\n\tCVUtils.otsuThreshold = function (imageWrapper, targetWrapper) {\n\t var threshold = CVUtils.determineOtsuThreshold(imageWrapper);\n\t\n\t CVUtils.thresholdImage(imageWrapper, threshold, targetWrapper);\n\t return threshold;\n\t};\n\t\n\t// local thresholding\n\tCVUtils.computeBinaryImage = function (imageWrapper, integralWrapper, targetWrapper) {\n\t CVUtils.computeIntegralImage(imageWrapper, integralWrapper);\n\t\n\t if (!targetWrapper) {\n\t targetWrapper = imageWrapper;\n\t }\n\t var imageData = imageWrapper.data;\n\t var targetData = targetWrapper.data;\n\t var width = imageWrapper.size.x;\n\t var height = imageWrapper.size.y;\n\t var integralImageData = integralWrapper.data;\n\t var sum = 0,\n\t v,\n\t u,\n\t kernel = 3,\n\t A,\n\t B,\n\t C,\n\t D,\n\t avg,\n\t size = (kernel * 2 + 1) * (kernel * 2 + 1);\n\t\n\t // clear out top & bottom-border\n\t for (v = 0; v <= kernel; v++) {\n\t for (u = 0; u < width; u++) {\n\t targetData[v * width + u] = 0;\n\t targetData[(height - 1 - v) * width + u] = 0;\n\t }\n\t }\n\t\n\t // clear out left & right border\n\t for (v = kernel; v < height - kernel; v++) {\n\t for (u = 0; u <= kernel; u++) {\n\t targetData[v * width + u] = 0;\n\t targetData[v * width + (width - 1 - u)] = 0;\n\t }\n\t }\n\t\n\t for (v = kernel + 1; v < height - kernel - 1; v++) {\n\t for (u = kernel + 1; u < width - kernel; u++) {\n\t A = integralImageData[(v - kernel - 1) * width + (u - kernel - 1)];\n\t B = integralImageData[(v - kernel - 1) * width + (u + kernel)];\n\t C = integralImageData[(v + kernel) * width + (u - kernel - 1)];\n\t D = integralImageData[(v + kernel) * width + (u + kernel)];\n\t sum = D - C - B + A;\n\t avg = sum / size;\n\t targetData[v * width + u] = imageData[v * width + u] > avg + 5 ? 0 : 1;\n\t }\n\t }\n\t};\n\t\n\tCVUtils.cluster = function (points, threshold, property) {\n\t var i,\n\t k,\n\t cluster,\n\t point,\n\t clusters = [];\n\t\n\t if (!property) {\n\t property = \"rad\";\n\t }\n\t\n\t function addToCluster(point) {\n\t var found = false;\n\t for (k = 0; k < clusters.length; k++) {\n\t cluster = clusters[k];\n\t if (cluster.fits(point)) {\n\t cluster.add(point);\n\t found = true;\n\t }\n\t }\n\t return found;\n\t }\n\t\n\t // iterate over each cloud\n\t for (i = 0; i < points.length; i++) {\n\t point = _cluster2['default'].createPoint(points[i], i, property);\n\t if (!addToCluster(point)) {\n\t clusters.push(_cluster2['default'].create(point, threshold));\n\t }\n\t }\n\t\n\t return clusters;\n\t};\n\t\n\tCVUtils.Tracer = {\n\t trace: function trace(points, vec) {\n\t var iteration,\n\t maxIterations = 10,\n\t top = [],\n\t result = [],\n\t centerPos = 0,\n\t currentPos = 0;\n\t\n\t function trace(idx, forward) {\n\t var from,\n\t to,\n\t toIdx,\n\t predictedPos,\n\t thresholdX = 1,\n\t thresholdY = Math.abs(vec[1] / 10),\n\t found = false;\n\t\n\t function match(pos, predicted) {\n\t if (pos.x > predicted.x - thresholdX && pos.x < predicted.x + thresholdX && pos.y > predicted.y - thresholdY && pos.y < predicted.y + thresholdY) {\n\t return true;\n\t } else {\n\t return false;\n\t }\n\t }\n\t\n\t // check if the next index is within the vec specifications\n\t // if not, check as long as the threshold is met\n\t\n\t from = points[idx];\n\t if (forward) {\n\t predictedPos = {\n\t x: from.x + vec[0],\n\t y: from.y + vec[1]\n\t };\n\t } else {\n\t predictedPos = {\n\t x: from.x - vec[0],\n\t y: from.y - vec[1]\n\t };\n\t }\n\t\n\t toIdx = forward ? idx + 1 : idx - 1;\n\t to = points[toIdx];\n\t while (to && (found = match(to, predictedPos)) !== true && Math.abs(to.y - from.y) < vec[1]) {\n\t toIdx = forward ? toIdx + 1 : toIdx - 1;\n\t to = points[toIdx];\n\t }\n\t\n\t return found ? toIdx : null;\n\t }\n\t\n\t for (iteration = 0; iteration < maxIterations; iteration++) {\n\t // randomly select point to start with\n\t centerPos = Math.floor(Math.random() * points.length);\n\t\n\t // trace forward\n\t top = [];\n\t currentPos = centerPos;\n\t top.push(points[currentPos]);\n\t while ((currentPos = trace(currentPos, true)) !== null) {\n\t top.push(points[currentPos]);\n\t }\n\t if (centerPos > 0) {\n\t currentPos = centerPos;\n\t while ((currentPos = trace(currentPos, false)) !== null) {\n\t top.push(points[currentPos]);\n\t }\n\t }\n\t\n\t if (top.length > result.length) {\n\t result = top;\n\t }\n\t }\n\t\n\t return result;\n\t }\n\t};\n\t\n\tCVUtils.DILATE = 1;\n\tCVUtils.ERODE = 2;\n\t\n\tCVUtils.dilate = function (inImageWrapper, outImageWrapper) {\n\t var v,\n\t u,\n\t inImageData = inImageWrapper.data,\n\t outImageData = outImageWrapper.data,\n\t height = inImageWrapper.size.y,\n\t width = inImageWrapper.size.x,\n\t sum,\n\t yStart1,\n\t yStart2,\n\t xStart1,\n\t xStart2;\n\t\n\t for (v = 1; v < height - 1; v++) {\n\t for (u = 1; u < width - 1; u++) {\n\t yStart1 = v - 1;\n\t yStart2 = v + 1;\n\t xStart1 = u - 1;\n\t xStart2 = u + 1;\n\t sum = inImageData[yStart1 * width + xStart1] /* + inImageData[yStart1*width+u] */ + inImageData[yStart1 * width + xStart2] +\n\t /* inImageData[v*width+xStart1] + */\n\t inImageData[v * width + u] + /* inImageData[v*width+xStart2] +*/\n\t inImageData[yStart2 * width + xStart1] /* + inImageData[yStart2*width+u]*/ + inImageData[yStart2 * width + xStart2];\n\t outImageData[v * width + u] = sum > 0 ? 1 : 0;\n\t }\n\t }\n\t};\n\t\n\tCVUtils.erode = function (inImageWrapper, outImageWrapper) {\n\t var v,\n\t u,\n\t inImageData = inImageWrapper.data,\n\t outImageData = outImageWrapper.data,\n\t height = inImageWrapper.size.y,\n\t width = inImageWrapper.size.x,\n\t sum,\n\t yStart1,\n\t yStart2,\n\t xStart1,\n\t xStart2;\n\t\n\t for (v = 1; v < height - 1; v++) {\n\t for (u = 1; u < width - 1; u++) {\n\t yStart1 = v - 1;\n\t yStart2 = v + 1;\n\t xStart1 = u - 1;\n\t xStart2 = u + 1;\n\t sum = inImageData[yStart1 * width + xStart1] /* + inImageData[yStart1*width+u] */ + inImageData[yStart1 * width + xStart2] +\n\t /* inImageData[v*width+xStart1] + */\n\t inImageData[v * width + u] + /* inImageData[v*width+xStart2] +*/\n\t inImageData[yStart2 * width + xStart1] /* + inImageData[yStart2*width+u]*/ + inImageData[yStart2 * width + xStart2];\n\t outImageData[v * width + u] = sum === 5 ? 1 : 0;\n\t }\n\t }\n\t};\n\t\n\tCVUtils.subtract = function (aImageWrapper, bImageWrapper, resultImageWrapper) {\n\t if (!resultImageWrapper) {\n\t resultImageWrapper = aImageWrapper;\n\t }\n\t var length = aImageWrapper.data.length,\n\t aImageData = aImageWrapper.data,\n\t bImageData = bImageWrapper.data,\n\t cImageData = resultImageWrapper.data;\n\t\n\t while (length--) {\n\t cImageData[length] = aImageData[length] - bImageData[length];\n\t }\n\t};\n\t\n\tCVUtils.bitwiseOr = function (aImageWrapper, bImageWrapper, resultImageWrapper) {\n\t if (!resultImageWrapper) {\n\t resultImageWrapper = aImageWrapper;\n\t }\n\t var length = aImageWrapper.data.length,\n\t aImageData = aImageWrapper.data,\n\t bImageData = bImageWrapper.data,\n\t cImageData = resultImageWrapper.data;\n\t\n\t while (length--) {\n\t cImageData[length] = aImageData[length] || bImageData[length];\n\t }\n\t};\n\t\n\tCVUtils.countNonZero = function (imageWrapper) {\n\t var length = imageWrapper.data.length,\n\t data = imageWrapper.data,\n\t sum = 0;\n\t\n\t while (length--) {\n\t sum += data[length];\n\t }\n\t return sum;\n\t};\n\t\n\tCVUtils.topGeneric = function (list, top, scoreFunc) {\n\t var i,\n\t minIdx = 0,\n\t min = 0,\n\t queue = [],\n\t score,\n\t hit,\n\t pos;\n\t\n\t for (i = 0; i < top; i++) {\n\t queue[i] = {\n\t score: 0,\n\t item: null\n\t };\n\t }\n\t\n\t for (i = 0; i < list.length; i++) {\n\t score = scoreFunc.apply(this, [list[i]]);\n\t if (score > min) {\n\t hit = queue[minIdx];\n\t hit.score = score;\n\t hit.item = list[i];\n\t min = Number.MAX_VALUE;\n\t for (pos = 0; pos < top; pos++) {\n\t if (queue[pos].score < min) {\n\t min = queue[pos].score;\n\t minIdx = pos;\n\t }\n\t }\n\t }\n\t }\n\t\n\t return queue;\n\t};\n\t\n\tCVUtils.grayArrayFromImage = function (htmlImage, offsetX, ctx, array) {\n\t ctx.drawImage(htmlImage, offsetX, 0, htmlImage.width, htmlImage.height);\n\t var ctxData = ctx.getImageData(offsetX, 0, htmlImage.width, htmlImage.height).data;\n\t CVUtils.computeGray(ctxData, array);\n\t};\n\t\n\tCVUtils.grayArrayFromContext = function (ctx, size, offset, array) {\n\t var ctxData = ctx.getImageData(offset.x, offset.y, size.x, size.y).data;\n\t CVUtils.computeGray(ctxData, array);\n\t};\n\t\n\tCVUtils.grayAndHalfSampleFromCanvasData = function (canvasData, size, outArray) {\n\t var topRowIdx = 0;\n\t var bottomRowIdx = size.x;\n\t var endIdx = Math.floor(canvasData.length / 4);\n\t var outWidth = size.x / 2;\n\t var outImgIdx = 0;\n\t var inWidth = size.x;\n\t var i;\n\t\n\t while (bottomRowIdx < endIdx) {\n\t for (i = 0; i < outWidth; i++) {\n\t outArray[outImgIdx] = Math.floor((0.299 * canvasData[topRowIdx * 4 + 0] + 0.587 * canvasData[topRowIdx * 4 + 1] + 0.114 * canvasData[topRowIdx * 4 + 2] + (0.299 * canvasData[(topRowIdx + 1) * 4 + 0] + 0.587 * canvasData[(topRowIdx + 1) * 4 + 1] + 0.114 * canvasData[(topRowIdx + 1) * 4 + 2]) + (0.299 * canvasData[bottomRowIdx * 4 + 0] + 0.587 * canvasData[bottomRowIdx * 4 + 1] + 0.114 * canvasData[bottomRowIdx * 4 + 2]) + (0.299 * canvasData[(bottomRowIdx + 1) * 4 + 0] + 0.587 * canvasData[(bottomRowIdx + 1) * 4 + 1] + 0.114 * canvasData[(bottomRowIdx + 1) * 4 + 2])) / 4);\n\t outImgIdx++;\n\t topRowIdx = topRowIdx + 2;\n\t bottomRowIdx = bottomRowIdx + 2;\n\t }\n\t topRowIdx = topRowIdx + inWidth;\n\t bottomRowIdx = bottomRowIdx + inWidth;\n\t }\n\t};\n\t\n\tCVUtils.computeGray = function (imageData, outArray, config) {\n\t var l = imageData.length / 4 | 0,\n\t i,\n\t singleChannel = config && config.singleChannel === true;\n\t\n\t if (singleChannel) {\n\t for (i = 0; i < l; i++) {\n\t outArray[i] = imageData[i * 4 + 0];\n\t }\n\t } else {\n\t for (i = 0; i < l; i++) {\n\t outArray[i] = Math.floor(0.299 * imageData[i * 4 + 0] + 0.587 * imageData[i * 4 + 1] + 0.114 * imageData[i * 4 + 2]);\n\t }\n\t }\n\t};\n\t\n\tCVUtils.loadImageArray = function (src, callback, canvas) {\n\t if (!canvas) canvas = document.createElement('canvas');\n\t var img = new Image();\n\t img.callback = callback;\n\t img.onload = function () {\n\t canvas.width = this.width;\n\t canvas.height = this.height;\n\t var ctx = canvas.getContext('2d');\n\t ctx.drawImage(this, 0, 0);\n\t var array = new Uint8Array(this.width * this.height);\n\t ctx.drawImage(this, 0, 0);\n\t var data = ctx.getImageData(0, 0, this.width, this.height).data;\n\t CVUtils.computeGray(data, array);\n\t this.callback(array, {\n\t x: this.width,\n\t y: this.height\n\t }, this);\n\t };\n\t img.src = src;\n\t};\n\t\n\t/**\n\t * @param inImg {ImageWrapper} input image to be sampled\n\t * @param outImg {ImageWrapper} to be stored in\n\t */\n\tCVUtils.halfSample = function (inImgWrapper, outImgWrapper) {\n\t var inImg = inImgWrapper.data;\n\t var inWidth = inImgWrapper.size.x;\n\t var outImg = outImgWrapper.data;\n\t var topRowIdx = 0;\n\t var bottomRowIdx = inWidth;\n\t var endIdx = inImg.length;\n\t var outWidth = inWidth / 2;\n\t var outImgIdx = 0;\n\t while (bottomRowIdx < endIdx) {\n\t for (var i = 0; i < outWidth; i++) {\n\t outImg[outImgIdx] = Math.floor((inImg[topRowIdx] + inImg[topRowIdx + 1] + inImg[bottomRowIdx] + inImg[bottomRowIdx + 1]) / 4);\n\t outImgIdx++;\n\t topRowIdx = topRowIdx + 2;\n\t bottomRowIdx = bottomRowIdx + 2;\n\t }\n\t topRowIdx = topRowIdx + inWidth;\n\t bottomRowIdx = bottomRowIdx + inWidth;\n\t }\n\t};\n\t\n\tCVUtils.hsv2rgb = function (hsv, rgb) {\n\t var h = hsv[0],\n\t s = hsv[1],\n\t v = hsv[2],\n\t c = v * s,\n\t x = c * (1 - Math.abs(h / 60 % 2 - 1)),\n\t m = v - c,\n\t r = 0,\n\t g = 0,\n\t b = 0;\n\t rgb = rgb || [0, 0, 0];\n\t\n\t if (h < 60) {\n\t r = c;\n\t g = x;\n\t } else if (h < 120) {\n\t r = x;\n\t g = c;\n\t } else if (h < 180) {\n\t g = c;\n\t b = x;\n\t } else if (h < 240) {\n\t g = x;\n\t b = c;\n\t } else if (h < 300) {\n\t r = x;\n\t b = c;\n\t } else if (h < 360) {\n\t r = c;\n\t b = x;\n\t }\n\t rgb[0] = (r + m) * 255 | 0;\n\t rgb[1] = (g + m) * 255 | 0;\n\t rgb[2] = (b + m) * 255 | 0;\n\t return rgb;\n\t};\n\t\n\tCVUtils._computeDivisors = function (n) {\n\t var largeDivisors = [],\n\t divisors = [],\n\t i;\n\t\n\t for (i = 1; i < Math.sqrt(n) + 1; i++) {\n\t if (n % i === 0) {\n\t divisors.push(i);\n\t if (i !== n / i) {\n\t largeDivisors.unshift(Math.floor(n / i));\n\t }\n\t }\n\t }\n\t return divisors.concat(largeDivisors);\n\t};\n\t\n\tCVUtils._computeIntersection = function (arr1, arr2) {\n\t var i = 0,\n\t j = 0,\n\t result = [];\n\t\n\t while (i < arr1.length && j < arr2.length) {\n\t if (arr1[i] === arr2[j]) {\n\t result.push(arr1[i]);\n\t i++;\n\t j++;\n\t } else if (arr1[i] > arr2[j]) {\n\t j++;\n\t } else {\n\t i++;\n\t }\n\t }\n\t return result;\n\t};\n\t\n\tCVUtils.calculatePatchSize = function (patchSize, imgSize) {\n\t var divisorsX = this._computeDivisors(imgSize.x),\n\t divisorsY = this._computeDivisors(imgSize.y),\n\t wideSide = Math.max(imgSize.x, imgSize.y),\n\t common = this._computeIntersection(divisorsX, divisorsY),\n\t nrOfPatchesList = [8, 10, 15, 20, 32, 60, 80],\n\t nrOfPatchesMap = {\n\t \"x-small\": 5,\n\t \"small\": 4,\n\t \"medium\": 3,\n\t \"large\": 2,\n\t \"x-large\": 1\n\t },\n\t nrOfPatchesIdx = nrOfPatchesMap[patchSize] || nrOfPatchesMap.medium,\n\t nrOfPatches = nrOfPatchesList[nrOfPatchesIdx],\n\t desiredPatchSize = Math.floor(wideSide / nrOfPatches),\n\t optimalPatchSize;\n\t\n\t function findPatchSizeForDivisors(divisors) {\n\t var i = 0,\n\t found = divisors[Math.floor(divisors.length / 2)];\n\t\n\t while (i < divisors.length - 1 && divisors[i] < desiredPatchSize) {\n\t i++;\n\t }\n\t if (i > 0) {\n\t if (Math.abs(divisors[i] - desiredPatchSize) > Math.abs(divisors[i - 1] - desiredPatchSize)) {\n\t found = divisors[i - 1];\n\t } else {\n\t found = divisors[i];\n\t }\n\t }\n\t if (desiredPatchSize / found < nrOfPatchesList[nrOfPatchesIdx + 1] / nrOfPatchesList[nrOfPatchesIdx] && desiredPatchSize / found > nrOfPatchesList[nrOfPatchesIdx - 1] / nrOfPatchesList[nrOfPatchesIdx]) {\n\t return { x: found, y: found };\n\t }\n\t return null;\n\t }\n\t\n\t optimalPatchSize = findPatchSizeForDivisors(common);\n\t if (!optimalPatchSize) {\n\t optimalPatchSize = findPatchSizeForDivisors(this._computeDivisors(wideSide));\n\t if (!optimalPatchSize) {\n\t optimalPatchSize = findPatchSizeForDivisors(this._computeDivisors(desiredPatchSize * nrOfPatches));\n\t }\n\t }\n\t return optimalPatchSize;\n\t};\n\t\n\tCVUtils._parseCSSDimensionValues = function (value) {\n\t var dimension = {\n\t value: parseFloat(value),\n\t unit: value.indexOf(\"%\") === value.length - 1 ? \"%\" : \"%\"\n\t };\n\t\n\t return dimension;\n\t};\n\t\n\tCVUtils._dimensionsConverters = {\n\t top: function top(dimension, context) {\n\t if (dimension.unit === \"%\") {\n\t return Math.floor(context.height * (dimension.value / 100));\n\t }\n\t },\n\t right: function right(dimension, context) {\n\t if (dimension.unit === \"%\") {\n\t return Math.floor(context.width - context.width * (dimension.value / 100));\n\t }\n\t },\n\t bottom: function bottom(dimension, context) {\n\t if (dimension.unit === \"%\") {\n\t return Math.floor(context.height - context.height * (dimension.value / 100));\n\t }\n\t },\n\t left: function left(dimension, context) {\n\t if (dimension.unit === \"%\") {\n\t return Math.floor(context.width * (dimension.value / 100));\n\t }\n\t }\n\t};\n\t\n\tCVUtils.computeImageArea = function (inputWidth, inputHeight, area) {\n\t var context = { width: inputWidth, height: inputHeight };\n\t\n\t var parsedArea = Object.keys(area).reduce(function (result, key) {\n\t var value = area[key],\n\t parsed = CVUtils._parseCSSDimensionValues(value),\n\t calculated = CVUtils._dimensionsConverters[key](parsed, context);\n\t\n\t result[key] = calculated;\n\t return result;\n\t }, {});\n\t\n\t return {\n\t sx: parsedArea.left,\n\t sy: parsedArea.top,\n\t sw: parsedArea.right - parsedArea.left,\n\t sh: parsedArea.bottom - parsedArea.top\n\t };\n\t};\n\t\n\texports['default'] = CVUtils;\n\tmodule.exports = exports['default'];\n\n/***/ },\n/* 8 */\n/***/ function(module, exports, __webpack_require__) {\n\n\t'use strict';\n\t\n\tObject.defineProperty(exports, '__esModule', {\n\t value: true\n\t});\n\t\n\tvar _glMatrix = __webpack_require__(9);\n\t\n\t/**\n\t * Creates a cluster for grouping similar orientations of datapoints\n\t */\n\texports['default'] = {\n\t create: function create(point, threshold) {\n\t var points = [],\n\t center = {\n\t rad: 0,\n\t vec: _glMatrix.vec2.clone([0, 0])\n\t },\n\t pointMap = {};\n\t\n\t function init() {\n\t _add(point);\n\t updateCenter();\n\t }\n\t\n\t function _add(point) {\n\t pointMap[point.id] = point;\n\t points.push(point);\n\t }\n\t\n\t function updateCenter() {\n\t var i,\n\t sum = 0;\n\t for (i = 0; i < points.length; i++) {\n\t sum += points[i].rad;\n\t }\n\t center.rad = sum / points.length;\n\t center.vec = _glMatrix.vec2.clone([Math.cos(center.rad), Math.sin(center.rad)]);\n\t }\n\t\n\t init();\n\t\n\t return {\n\t add: function add(point) {\n\t if (!pointMap[point.id]) {\n\t _add(point);\n\t updateCenter();\n\t }\n\t },\n\t fits: function fits(point) {\n\t // check cosine similarity to center-angle\n\t var similarity = Math.abs(_glMatrix.vec2.dot(point.point.vec, center.vec));\n\t if (similarity > threshold) {\n\t return true;\n\t }\n\t return false;\n\t },\n\t getPoints: function getPoints() {\n\t return points;\n\t },\n\t getCenter: function getCenter() {\n\t return center;\n\t }\n\t };\n\t },\n\t createPoint: function createPoint(point, id, property) {\n\t return {\n\t rad: point[property],\n\t point: point,\n\t id: id\n\t };\n\t }\n\t};\n\tmodule.exports = exports['default'];\n\n/***/ },\n/* 9 */\n/***/ function(module, exports, __webpack_require__) {\n\n\t/**\n\t * @fileoverview gl-matrix - High performance matrix and vector operations\n\t * @author Brandon Jones\n\t * @author Colin MacKenzie IV\n\t * @version 2.3.0\n\t */\n\t\n\t/* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV.\n\t\n\tPermission is hereby granted, free of charge, to any person obtaining a copy\n\tof this software and associated documentation files (the \"Software\"), to deal\n\tin the Software without restriction, including without limitation the rights\n\tto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n\tcopies of the Software, and to permit persons to whom the Software is\n\tfurnished to do so, subject to the following conditions:\n\t\n\tThe above copyright notice and this permission notice shall be included in\n\tall copies or substantial portions of the Software.\n\t\n\tTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n\tIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n\tFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n\tAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n\tLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n\tOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n\tTHE SOFTWARE. */\n\t// END HEADER\n\t\n\texports.glMatrix = __webpack_require__(10);\n\texports.mat2 = __webpack_require__(11);\n\texports.mat2d = __webpack_require__(12);\n\texports.mat3 = __webpack_require__(13);\n\texports.mat4 = __webpack_require__(14);\n\texports.quat = __webpack_require__(15);\n\texports.vec2 = __webpack_require__(18);\n\texports.vec3 = __webpack_require__(16);\n\texports.vec4 = __webpack_require__(17);\n\n/***/ },\n/* 10 */\n/***/ function(module, exports) {\n\n\t/* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV.\n\t\n\tPermission is hereby granted, free of charge, to any person obtaining a copy\n\tof this software and associated documentation files (the \"Software\"), to deal\n\tin the Software without restriction, including without limitation the rights\n\tto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n\tcopies of the Software, and to permit persons to whom the Software is\n\tfurnished to do so, subject to the following conditions:\n\t\n\tThe above copyright notice and this permission notice shall be included in\n\tall copies or substantial portions of the Software.\n\t\n\tTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n\tIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n\tFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n\tAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n\tLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n\tOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n\tTHE SOFTWARE. */\n\t\n\t/**\n\t * @class Common utilities\n\t * @name glMatrix\n\t */\n\tvar glMatrix = {};\n\t\n\t// Constants\n\tglMatrix.EPSILON = 0.000001;\n\tglMatrix.ARRAY_TYPE = (typeof Float32Array !== 'undefined') ? Float32Array : Array;\n\tglMatrix.RANDOM = Math.random;\n\t\n\t/**\n\t * Sets the type of array used when creating new vectors and matrices\n\t *\n\t * @param {Type} type Array type, such as Float32Array or Array\n\t */\n\tglMatrix.setMatrixArrayType = function(type) {\n\t GLMAT_ARRAY_TYPE = type;\n\t}\n\t\n\tvar degree = Math.PI / 180;\n\t\n\t/**\n\t* Convert Degree To Radian\n\t*\n\t* @param {Number} Angle in Degrees\n\t*/\n\tglMatrix.toRadian = function(a){\n\t return a * degree;\n\t}\n\t\n\tmodule.exports = glMatrix;\n\n\n/***/ },\n/* 11 */\n/***/ function(module, exports, __webpack_require__) {\n\n\t/* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV.\n\t\n\tPermission is hereby granted, free of charge, to any person obtaining a copy\n\tof this software and associated documentation files (the \"Software\"), to deal\n\tin the Software without restriction, including without limitation the rights\n\tto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n\tcopies of the Software, and to permit persons to whom the Software is\n\tfurnished to do so, subject to the following conditions:\n\t\n\tThe above copyright notice and this permission notice shall be included in\n\tall copies or substantial portions of the Software.\n\t\n\tTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n\tIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n\tFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n\tAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n\tLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n\tOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n\tTHE SOFTWARE. */\n\t\n\tvar glMatrix = __webpack_require__(10);\n\t\n\t/**\n\t * @class 2x2 Matrix\n\t * @name mat2\n\t */\n\tvar mat2 = {};\n\t\n\t/**\n\t * Creates a new identity mat2\n\t *\n\t * @returns {mat2} a new 2x2 matrix\n\t */\n\tmat2.create = function() {\n\t var out = new glMatrix.ARRAY_TYPE(4);\n\t out[0] = 1;\n\t out[1] = 0;\n\t out[2] = 0;\n\t out[3] = 1;\n\t return out;\n\t};\n\t\n\t/**\n\t * Creates a new mat2 initialized with values from an existing matrix\n\t *\n\t * @param {mat2} a matrix to clone\n\t * @returns {mat2} a new 2x2 matrix\n\t */\n\tmat2.clone = function(a) {\n\t var out = new glMatrix.ARRAY_TYPE(4);\n\t out[0] = a[0];\n\t out[1] = a[1];\n\t out[2] = a[2];\n\t out[3] = a[3];\n\t return out;\n\t};\n\t\n\t/**\n\t * Copy the values from one mat2 to another\n\t *\n\t * @param {mat2} out the receiving matrix\n\t * @param {mat2} a the source matrix\n\t * @returns {mat2} out\n\t */\n\tmat2.copy = function(out, a) {\n\t out[0] = a[0];\n\t out[1] = a[1];\n\t out[2] = a[2];\n\t out[3] = a[3];\n\t return out;\n\t};\n\t\n\t/**\n\t * Set a mat2 to the identity matrix\n\t *\n\t * @param {mat2} out the receiving matrix\n\t * @returns {mat2} out\n\t */\n\tmat2.identity = function(out) {\n\t out[0] = 1;\n\t out[1] = 0;\n\t out[2] = 0;\n\t out[3] = 1;\n\t return out;\n\t};\n\t\n\t/**\n\t * Transpose the values of a mat2\n\t *\n\t * @param {mat2} out the receiving matrix\n\t * @param {mat2} a the source matrix\n\t * @returns {mat2} out\n\t */\n\tmat2.transpose = function(out, a) {\n\t // If we are transposing ourselves we can skip a few steps but have to cache some values\n\t if (out === a) {\n\t var a1 = a[1];\n\t out[1] = a[2];\n\t out[2] = a1;\n\t } else {\n\t out[0] = a[0];\n\t out[1] = a[2];\n\t out[2] = a[1];\n\t out[3] = a[3];\n\t }\n\t \n\t return out;\n\t};\n\t\n\t/**\n\t * Inverts a mat2\n\t *\n\t * @param {mat2} out the receiving matrix\n\t * @param {mat2} a the source matrix\n\t * @returns {mat2} out\n\t */\n\tmat2.invert = function(out, a) {\n\t var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3],\n\t\n\t // Calculate the determinant\n\t det = a0 * a3 - a2 * a1;\n\t\n\t if (!det) {\n\t return null;\n\t }\n\t det = 1.0 / det;\n\t \n\t out[0] = a3 * det;\n\t out[1] = -a1 * det;\n\t out[2] = -a2 * det;\n\t out[3] = a0 * det;\n\t\n\t return out;\n\t};\n\t\n\t/**\n\t * Calculates the adjugate of a mat2\n\t *\n\t * @param {mat2} out the receiving matrix\n\t * @param {mat2} a the source matrix\n\t * @returns {mat2} out\n\t */\n\tmat2.adjoint = function(out, a) {\n\t // Caching this value is nessecary if out == a\n\t var a0 = a[0];\n\t out[0] = a[3];\n\t out[1] = -a[1];\n\t out[2] = -a[2];\n\t out[3] = a0;\n\t\n\t return out;\n\t};\n\t\n\t/**\n\t * Calculates the determinant of a mat2\n\t *\n\t * @param {mat2} a the source matrix\n\t * @returns {Number} determinant of a\n\t */\n\tmat2.determinant = function (a) {\n\t return a[0] * a[3] - a[2] * a[1];\n\t};\n\t\n\t/**\n\t * Multiplies two mat2's\n\t *\n\t * @param {mat2} out the receiving matrix\n\t * @param {mat2} a the first operand\n\t * @param {mat2} b the second operand\n\t * @returns {mat2} out\n\t */\n\tmat2.multiply = function (out, a, b) {\n\t var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3];\n\t var b0 = b[0], b1 = b[1], b2 = b[2], b3 = b[3];\n\t out[0] = a0 * b0 + a2 * b1;\n\t out[1] = a1 * b0 + a3 * b1;\n\t out[2] = a0 * b2 + a2 * b3;\n\t out[3] = a1 * b2 + a3 * b3;\n\t return out;\n\t};\n\t\n\t/**\n\t * Alias for {@link mat2.multiply}\n\t * @function\n\t */\n\tmat2.mul = mat2.multiply;\n\t\n\t/**\n\t * Rotates a mat2 by the given angle\n\t *\n\t * @param {mat2} out the receiving matrix\n\t * @param {mat2} a the matrix to rotate\n\t * @param {Number} rad the angle to rotate the matrix by\n\t * @returns {mat2} out\n\t */\n\tmat2.rotate = function (out, a, rad) {\n\t var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3],\n\t s = Math.sin(rad),\n\t c = Math.cos(rad);\n\t out[0] = a0 * c + a2 * s;\n\t out[1] = a1 * c + a3 * s;\n\t out[2] = a0 * -s + a2 * c;\n\t out[3] = a1 * -s + a3 * c;\n\t return out;\n\t};\n\t\n\t/**\n\t * Scales the mat2 by the dimensions in the given vec2\n\t *\n\t * @param {mat2} out the receiving matrix\n\t * @param {mat2} a the matrix to rotate\n\t * @param {vec2} v the vec2 to scale the matrix by\n\t * @returns {mat2} out\n\t **/\n\tmat2.scale = function(out, a, v) {\n\t var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3],\n\t v0 = v[0], v1 = v[1];\n\t out[0] = a0 * v0;\n\t out[1] = a1 * v0;\n\t out[2] = a2 * v1;\n\t out[3] = a3 * v1;\n\t return out;\n\t};\n\t\n\t/**\n\t * Creates a matrix from a given angle\n\t * This is equivalent to (but much faster than):\n\t *\n\t * mat2.identity(dest);\n\t * mat2.rotate(dest, dest, rad);\n\t *\n\t * @param {mat2} out mat2 receiving operation result\n\t * @param {Number} rad the angle to rotate the matrix by\n\t * @returns {mat2} out\n\t */\n\tmat2.fromRotation = function(out, rad) {\n\t var s = Math.sin(rad),\n\t c = Math.cos(rad);\n\t out[0] = c;\n\t out[1] = s;\n\t out[2] = -s;\n\t out[3] = c;\n\t return out;\n\t}\n\t\n\t/**\n\t * Creates a matrix from a vector scaling\n\t * This is equivalent to (but much faster than):\n\t *\n\t * mat2.identity(dest);\n\t * mat2.scale(dest, dest, vec);\n\t *\n\t * @param {mat2} out mat2 receiving operation result\n\t * @param {vec2} v Scaling vector\n\t * @returns {mat2} out\n\t */\n\tmat2.fromScaling = function(out, v) {\n\t out[0] = v[0];\n\t out[1] = 0;\n\t out[2] = 0;\n\t out[3] = v[1];\n\t return out;\n\t}\n\t\n\t/**\n\t * Returns a string representation of a mat2\n\t *\n\t * @param {mat2} mat matrix to represent as a string\n\t * @returns {String} string representation of the matrix\n\t */\n\tmat2.str = function (a) {\n\t return 'mat2(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' + a[3] + ')';\n\t};\n\t\n\t/**\n\t * Returns Frobenius norm of a mat2\n\t *\n\t * @param {mat2} a the matrix to calculate Frobenius norm of\n\t * @returns {Number} Frobenius norm\n\t */\n\tmat2.frob = function (a) {\n\t return(Math.sqrt(Math.pow(a[0], 2) + Math.pow(a[1], 2) + Math.pow(a[2], 2) + Math.pow(a[3], 2)))\n\t};\n\t\n\t/**\n\t * Returns L, D and U matrices (Lower triangular, Diagonal and Upper triangular) by factorizing the input matrix\n\t * @param {mat2} L the lower triangular matrix \n\t * @param {mat2} D the diagonal matrix \n\t * @param {mat2} U the upper triangular matrix \n\t * @param {mat2} a the input matrix to factorize\n\t */\n\t\n\tmat2.LDU = function (L, D, U, a) { \n\t L[2] = a[2]/a[0]; \n\t U[0] = a[0]; \n\t U[1] = a[1]; \n\t U[3] = a[3] - L[2] * U[1]; \n\t return [L, D, U]; \n\t}; \n\t\n\t\n\tmodule.exports = mat2;\n\n\n/***/ },\n/* 12 */\n/***/ function(module, exports, __webpack_require__) {\n\n\t/* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV.\n\t\n\tPermission is hereby granted, free of charge, to any person obtaining a copy\n\tof this software and associated documentation files (the \"Software\"), to deal\n\tin the Software without restriction, including without limitation the rights\n\tto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n\tcopies of the Software, and to permit persons to whom the Software is\n\tfurnished to do so, subject to the following conditions:\n\t\n\tThe above copyright notice and this permission notice shall be included in\n\tall copies or substantial portions of the Software.\n\t\n\tTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n\tIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n\tFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n\tAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n\tLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n\tOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n\tTHE SOFTWARE. */\n\t\n\tvar glMatrix = __webpack_require__(10);\n\t\n\t/**\n\t * @class 2x3 Matrix\n\t * @name mat2d\n\t * \n\t * @description \n\t * A mat2d contains six elements defined as:\n\t * 
\n\t * [a, c, tx,\n\t *  b, d, ty]\n\t *
\n\t * This is a short form for the 3x3 matrix:\n\t * 
\n\t * [a, c, tx,\n\t *  b, d, ty,\n\t *  0, 0, 1]\n\t *
\n\t * The last row is ignored so the array is shorter and operations are faster.\n\t */\n\tvar mat2d = {};\n\t\n\t/**\n\t * Creates a new identity mat2d\n\t *\n\t * @returns {mat2d} a new 2x3 matrix\n\t */\n\tmat2d.create = function() {\n\t var out = new glMatrix.ARRAY_TYPE(6);\n\t out[0] = 1;\n\t out[1] = 0;\n\t out[2] = 0;\n\t out[3] = 1;\n\t out[4] = 0;\n\t out[5] = 0;\n\t return out;\n\t};\n\t\n\t/**\n\t * Creates a new mat2d initialized with values from an existing matrix\n\t *\n\t * @param {mat2d} a matrix to clone\n\t * @returns {mat2d} a new 2x3 matrix\n\t */\n\tmat2d.clone = function(a) {\n\t var out = new glMatrix.ARRAY_TYPE(6);\n\t out[0] = a[0];\n\t out[1] = a[1];\n\t out[2] = a[2];\n\t out[3] = a[3];\n\t out[4] = a[4];\n\t out[5] = a[5];\n\t return out;\n\t};\n\t\n\t/**\n\t * Copy the values from one mat2d to another\n\t *\n\t * @param {mat2d} out the receiving matrix\n\t * @param {mat2d} a the source matrix\n\t * @returns {mat2d} out\n\t */\n\tmat2d.copy = function(out, a) {\n\t out[0] = a[0];\n\t out[1] = a[1];\n\t out[2] = a[2];\n\t out[3] = a[3];\n\t out[4] = a[4];\n\t out[5] = a[5];\n\t return out;\n\t};\n\t\n\t/**\n\t * Set a mat2d to the identity matrix\n\t *\n\t * @param {mat2d} out the receiving matrix\n\t * @returns {mat2d} out\n\t */\n\tmat2d.identity = function(out) {\n\t out[0] = 1;\n\t out[1] = 0;\n\t out[2] = 0;\n\t out[3] = 1;\n\t out[4] = 0;\n\t out[5] = 0;\n\t return out;\n\t};\n\t\n\t/**\n\t * Inverts a mat2d\n\t *\n\t * @param {mat2d} out the receiving matrix\n\t * @param {mat2d} a the source matrix\n\t * @returns {mat2d} out\n\t */\n\tmat2d.invert = function(out, a) {\n\t var aa = a[0], ab = a[1], ac = a[2], ad = a[3],\n\t atx = a[4], aty = a[5];\n\t\n\t var det = aa * ad - ab * ac;\n\t if(!det){\n\t return null;\n\t }\n\t det = 1.0 / det;\n\t\n\t out[0] = ad * det;\n\t out[1] = -ab * det;\n\t out[2] = -ac * det;\n\t out[3] = aa * det;\n\t out[4] = (ac * aty - ad * atx) * det;\n\t out[5] = (ab * atx - aa * aty) * det;\n\t return out;\n\t};\n\t\n\t/**\n\t * Calculates the determinant of a mat2d\n\t *\n\t * @param {mat2d} a the source matrix\n\t * @returns {Number} determinant of a\n\t */\n\tmat2d.determinant = function (a) {\n\t return a[0] * a[3] - a[1] * a[2];\n\t};\n\t\n\t/**\n\t * Multiplies two mat2d's\n\t *\n\t * @param {mat2d} out the receiving matrix\n\t * @param {mat2d} a the first operand\n\t * @param {mat2d} b the second operand\n\t * @returns {mat2d} out\n\t */\n\tmat2d.multiply = function (out, a, b) {\n\t var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3], a4 = a[4], a5 = a[5],\n\t b0 = b[0], b1 = b[1], b2 = b[2], b3 = b[3], b4 = b[4], b5 = b[5];\n\t out[0] = a0 * b0 + a2 * b1;\n\t out[1] = a1 * b0 + a3 * b1;\n\t out[2] = a0 * b2 + a2 * b3;\n\t out[3] = a1 * b2 + a3 * b3;\n\t out[4] = a0 * b4 + a2 * b5 + a4;\n\t out[5] = a1 * b4 + a3 * b5 + a5;\n\t return out;\n\t};\n\t\n\t/**\n\t * Alias for {@link mat2d.multiply}\n\t * @function\n\t */\n\tmat2d.mul = mat2d.multiply;\n\t\n\t/**\n\t * Rotates a mat2d by the given angle\n\t *\n\t * @param {mat2d} out the receiving matrix\n\t * @param {mat2d} a the matrix to rotate\n\t * @param {Number} rad the angle to rotate the matrix by\n\t * @returns {mat2d} out\n\t */\n\tmat2d.rotate = function (out, a, rad) {\n\t var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3], a4 = a[4], a5 = a[5],\n\t s = Math.sin(rad),\n\t c = Math.cos(rad);\n\t out[0] = a0 * c + a2 * s;\n\t out[1] = a1 * c + a3 * s;\n\t out[2] = a0 * -s + a2 * c;\n\t out[3] = a1 * -s + a3 * c;\n\t out[4] = a4;\n\t out[5] = a5;\n\t return out;\n\t};\n\t\n\t/**\n\t * Scales the mat2d by the dimensions in the given vec2\n\t *\n\t * @param {mat2d} out the receiving matrix\n\t * @param {mat2d} a the matrix to translate\n\t * @param {vec2} v the vec2 to scale the matrix by\n\t * @returns {mat2d} out\n\t **/\n\tmat2d.scale = function(out, a, v) {\n\t var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3], a4 = a[4], a5 = a[5],\n\t v0 = v[0], v1 = v[1];\n\t out[0] = a0 * v0;\n\t out[1] = a1 * v0;\n\t out[2] = a2 * v1;\n\t out[3] = a3 * v1;\n\t out[4] = a4;\n\t out[5] = a5;\n\t return out;\n\t};\n\t\n\t/**\n\t * Translates the mat2d by the dimensions in the given vec2\n\t *\n\t * @param {mat2d} out the receiving matrix\n\t * @param {mat2d} a the matrix to translate\n\t * @param {vec2} v the vec2 to translate the matrix by\n\t * @returns {mat2d} out\n\t **/\n\tmat2d.translate = function(out, a, v) {\n\t var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3], a4 = a[4], a5 = a[5],\n\t v0 = v[0], v1 = v[1];\n\t out[0] = a0;\n\t out[1] = a1;\n\t out[2] = a2;\n\t out[3] = a3;\n\t out[4] = a0 * v0 + a2 * v1 + a4;\n\t out[5] = a1 * v0 + a3 * v1 + a5;\n\t return out;\n\t};\n\t\n\t/**\n\t * Creates a matrix from a given angle\n\t * This is equivalent to (but much faster than):\n\t *\n\t * mat2d.identity(dest);\n\t * mat2d.rotate(dest, dest, rad);\n\t *\n\t * @param {mat2d} out mat2d receiving operation result\n\t * @param {Number} rad the angle to rotate the matrix by\n\t * @returns {mat2d} out\n\t */\n\tmat2d.fromRotation = function(out, rad) {\n\t var s = Math.sin(rad), c = Math.cos(rad);\n\t out[0] = c;\n\t out[1] = s;\n\t out[2] = -s;\n\t out[3] = c;\n\t out[4] = 0;\n\t out[5] = 0;\n\t return out;\n\t}\n\t\n\t/**\n\t * Creates a matrix from a vector scaling\n\t * This is equivalent to (but much faster than):\n\t *\n\t * mat2d.identity(dest);\n\t * mat2d.scale(dest, dest, vec);\n\t *\n\t * @param {mat2d} out mat2d receiving operation result\n\t * @param {vec2} v Scaling vector\n\t * @returns {mat2d} out\n\t */\n\tmat2d.fromScaling = function(out, v) {\n\t out[0] = v[0];\n\t out[1] = 0;\n\t out[2] = 0;\n\t out[3] = v[1];\n\t out[4] = 0;\n\t out[5] = 0;\n\t return out;\n\t}\n\t\n\t/**\n\t * Creates a matrix from a vector translation\n\t * This is equivalent to (but much faster than):\n\t *\n\t * mat2d.identity(dest);\n\t * mat2d.translate(dest, dest, vec);\n\t *\n\t * @param {mat2d} out mat2d receiving operation result\n\t * @param {vec2} v Translation vector\n\t * @returns {mat2d} out\n\t */\n\tmat2d.fromTranslation = function(out, v) {\n\t out[0] = 1;\n\t out[1] = 0;\n\t out[2] = 0;\n\t out[3] = 1;\n\t out[4] = v[0];\n\t out[5] = v[1];\n\t return out;\n\t}\n\t\n\t/**\n\t * Returns a string representation of a mat2d\n\t *\n\t * @param {mat2d} a matrix to represent as a string\n\t * @returns {String} string representation of the matrix\n\t */\n\tmat2d.str = function (a) {\n\t return 'mat2d(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' + \n\t a[3] + ', ' + a[4] + ', ' + a[5] + ')';\n\t};\n\t\n\t/**\n\t * Returns Frobenius norm of a mat2d\n\t *\n\t * @param {mat2d} a the matrix to calculate Frobenius norm of\n\t * @returns {Number} Frobenius norm\n\t */\n\tmat2d.frob = function (a) { \n\t return(Math.sqrt(Math.pow(a[0], 2) + Math.pow(a[1], 2) + Math.pow(a[2], 2) + Math.pow(a[3], 2) + Math.pow(a[4], 2) + Math.pow(a[5], 2) + 1))\n\t}; \n\t\n\tmodule.exports = mat2d;\n\n\n/***/ },\n/* 13 */\n/***/ function(module, exports, __webpack_require__) {\n\n\t/* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV.\n\t\n\tPermission is hereby granted, free of charge, to any person obtaining a copy\n\tof this software and associated documentation files (the \"Software\"), to deal\n\tin the Software without restriction, including without limitation the rights\n\tto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n\tcopies of the Software, and to permit persons to whom the Software is\n\tfurnished to do so, subject to the following conditions:\n\t\n\tThe above copyright notice and this permission notice shall be included in\n\tall copies or substantial portions of the Software.\n\t\n\tTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n\tIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n\tFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n\tAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n\tLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n\tOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n\tTHE SOFTWARE. */\n\t\n\tvar glMatrix = __webpack_require__(10);\n\t\n\t/**\n\t * @class 3x3 Matrix\n\t * @name mat3\n\t */\n\tvar mat3 = {};\n\t\n\t/**\n\t * Creates a new identity mat3\n\t *\n\t * @returns {mat3} a new 3x3 matrix\n\t */\n\tmat3.create = function() {\n\t var out = new glMatrix.ARRAY_TYPE(9);\n\t out[0] = 1;\n\t out[1] = 0;\n\t out[2] = 0;\n\t out[3] = 0;\n\t out[4] = 1;\n\t out[5] = 0;\n\t out[6] = 0;\n\t out[7] = 0;\n\t out[8] = 1;\n\t return out;\n\t};\n\t\n\t/**\n\t * Copies the upper-left 3x3 values into the given mat3.\n\t *\n\t * @param {mat3} out the receiving 3x3 matrix\n\t * @param {mat4} a the source 4x4 matrix\n\t * @returns {mat3} out\n\t */\n\tmat3.fromMat4 = function(out, a) {\n\t out[0] = a[0];\n\t out[1] = a[1];\n\t out[2] = a[2];\n\t out[3] = a[4];\n\t out[4] = a[5];\n\t out[5] = a[6];\n\t out[6] = a[8];\n\t out[7] = a[9];\n\t out[8] = a[10];\n\t return out;\n\t};\n\t\n\t/**\n\t * Creates a new mat3 initialized with values from an existing matrix\n\t *\n\t * @param {mat3} a matrix to clone\n\t * @returns {mat3} a new 3x3 matrix\n\t */\n\tmat3.clone = function(a) {\n\t var out = new glMatrix.ARRAY_TYPE(9);\n\t out[0] = a[0];\n\t out[1] = a[1];\n\t out[2] = a[2];\n\t out[3] = a[3];\n\t out[4] = a[4];\n\t out[5] = a[5];\n\t out[6] = a[6];\n\t out[7] = a[7];\n\t out[8] = a[8];\n\t return out;\n\t};\n\t\n\t/**\n\t * Copy the values from one mat3 to another\n\t *\n\t * @param {mat3} out the receiving matrix\n\t * @param {mat3} a the source matrix\n\t * @returns {mat3} out\n\t */\n\tmat3.copy = function(out, a) {\n\t out[0] = a[0];\n\t out[1] = a[1];\n\t out[2] = a[2];\n\t out[3] = a[3];\n\t out[4] = a[4];\n\t out[5] = a[5];\n\t out[6] = a[6];\n\t out[7] = a[7];\n\t out[8] = a[8];\n\t return out;\n\t};\n\t\n\t/**\n\t * Set a mat3 to the identity matrix\n\t *\n\t * @param {mat3} out the receiving matrix\n\t * @returns {mat3} out\n\t */\n\tmat3.identity = function(out) {\n\t out[0] = 1;\n\t out[1] = 0;\n\t out[2] = 0;\n\t out[3] = 0;\n\t out[4] = 1;\n\t out[5] = 0;\n\t out[6] = 0;\n\t out[7] = 0;\n\t out[8] = 1;\n\t return out;\n\t};\n\t\n\t/**\n\t * Transpose the values of a mat3\n\t *\n\t * @param {mat3} out the receiving matrix\n\t * @param {mat3} a the source matrix\n\t * @returns {mat3} out\n\t */\n\tmat3.transpose = function(out, a) {\n\t // If we are transposing ourselves we can skip a few steps but have to cache some values\n\t if (out === a) {\n\t var a01 = a[1], a02 = a[2], a12 = a[5];\n\t out[1] = a[3];\n\t out[2] = a[6];\n\t out[3] = a01;\n\t out[5] = a[7];\n\t out[6] = a02;\n\t out[7] = a12;\n\t } else {\n\t out[0] = a[0];\n\t out[1] = a[3];\n\t out[2] = a[6];\n\t out[3] = a[1];\n\t out[4] = a[4];\n\t out[5] = a[7];\n\t out[6] = a[2];\n\t out[7] = a[5];\n\t out[8] = a[8];\n\t }\n\t \n\t return out;\n\t};\n\t\n\t/**\n\t * Inverts a mat3\n\t *\n\t * @param {mat3} out the receiving matrix\n\t * @param {mat3} a the source matrix\n\t * @returns {mat3} out\n\t */\n\tmat3.invert = function(out, a) {\n\t var a00 = a[0], a01 = a[1], a02 = a[2],\n\t a10 = a[3], a11 = a[4], a12 = a[5],\n\t a20 = a[6], a21 = a[7], a22 = a[8],\n\t\n\t b01 = a22 * a11 - a12 * a21,\n\t b11 = -a22 * a10 + a12 * a20,\n\t b21 = a21 * a10 - a11 * a20,\n\t\n\t // Calculate the determinant\n\t det = a00 * b01 + a01 * b11 + a02 * b21;\n\t\n\t if (!det) { \n\t return null; \n\t }\n\t det = 1.0 / det;\n\t\n\t out[0] = b01 * det;\n\t out[1] = (-a22 * a01 + a02 * a21) * det;\n\t out[2] = (a12 * a01 - a02 * a11) * det;\n\t out[3] = b11 * det;\n\t out[4] = (a22 * a00 - a02 * a20) * det;\n\t out[5] = (-a12 * a00 + a02 * a10) * det;\n\t out[6] = b21 * det;\n\t out[7] = (-a21 * a00 + a01 * a20) * det;\n\t out[8] = (a11 * a00 - a01 * a10) * det;\n\t return out;\n\t};\n\t\n\t/**\n\t * Calculates the adjugate of a mat3\n\t *\n\t * @param {mat3} out the receiving matrix\n\t * @param {mat3} a the source matrix\n\t * @returns {mat3} out\n\t */\n\tmat3.adjoint = function(out, a) {\n\t var a00 = a[0], a01 = a[1], a02 = a[2],\n\t a10 = a[3], a11 = a[4], a12 = a[5],\n\t a20 = a[6], a21 = a[7], a22 = a[8];\n\t\n\t out[0] = (a11 * a22 - a12 * a21);\n\t out[1] = (a02 * a21 - a01 * a22);\n\t out[2] = (a01 * a12 - a02 * a11);\n\t out[3] = (a12 * a20 - a10 * a22);\n\t out[4] = (a00 * a22 - a02 * a20);\n\t out[5] = (a02 * a10 - a00 * a12);\n\t out[6] = (a10 * a21 - a11 * a20);\n\t out[7] = (a01 * a20 - a00 * a21);\n\t out[8] = (a00 * a11 - a01 * a10);\n\t return out;\n\t};\n\t\n\t/**\n\t * Calculates the determinant of a mat3\n\t *\n\t * @param {mat3} a the source matrix\n\t * @returns {Number} determinant of a\n\t */\n\tmat3.determinant = function (a) {\n\t var a00 = a[0], a01 = a[1], a02 = a[2],\n\t a10 = a[3], a11 = a[4], a12 = a[5],\n\t a20 = a[6], a21 = a[7], a22 = a[8];\n\t\n\t return a00 * (a22 * a11 - a12 * a21) + a01 * (-a22 * a10 + a12 * a20) + a02 * (a21 * a10 - a11 * a20);\n\t};\n\t\n\t/**\n\t * Multiplies two mat3's\n\t *\n\t * @param {mat3} out the receiving matrix\n\t * @param {mat3} a the first operand\n\t * @param {mat3} b the second operand\n\t * @returns {mat3} out\n\t */\n\tmat3.multiply = function (out, a, b) {\n\t var a00 = a[0], a01 = a[1], a02 = a[2],\n\t a10 = a[3], a11 = a[4], a12 = a[5],\n\t a20 = a[6], a21 = a[7], a22 = a[8],\n\t\n\t b00 = b[0], b01 = b[1], b02 = b[2],\n\t b10 = b[3], b11 = b[4], b12 = b[5],\n\t b20 = b[6], b21 = b[7], b22 = b[8];\n\t\n\t out[0] = b00 * a00 + b01 * a10 + b02 * a20;\n\t out[1] = b00 * a01 + b01 * a11 + b02 * a21;\n\t out[2] = b00 * a02 + b01 * a12 + b02 * a22;\n\t\n\t out[3] = b10 * a00 + b11 * a10 + b12 * a20;\n\t out[4] = b10 * a01 + b11 * a11 + b12 * a21;\n\t out[5] = b10 * a02 + b11 * a12 + b12 * a22;\n\t\n\t out[6] = b20 * a00 + b21 * a10 + b22 * a20;\n\t out[7] = b20 * a01 + b21 * a11 + b22 * a21;\n\t out[8] = b20 * a02 + b21 * a12 + b22 * a22;\n\t return out;\n\t};\n\t\n\t/**\n\t * Alias for {@link mat3.multiply}\n\t * @function\n\t */\n\tmat3.mul = mat3.multiply;\n\t\n\t/**\n\t * Translate a mat3 by the given vector\n\t *\n\t * @param {mat3} out the receiving matrix\n\t * @param {mat3} a the matrix to translate\n\t * @param {vec2} v vector to translate by\n\t * @returns {mat3} out\n\t */\n\tmat3.translate = function(out, a, v) {\n\t var a00 = a[0], a01 = a[1], a02 = a[2],\n\t a10 = a[3], a11 = a[4], a12 = a[5],\n\t a20 = a[6], a21 = a[7], a22 = a[8],\n\t x = v[0], y = v[1];\n\t\n\t out[0] = a00;\n\t out[1] = a01;\n\t out[2] = a02;\n\t\n\t out[3] = a10;\n\t out[4] = a11;\n\t out[5] = a12;\n\t\n\t out[6] = x * a00 + y * a10 + a20;\n\t out[7] = x * a01 + y * a11 + a21;\n\t out[8] = x * a02 + y * a12 + a22;\n\t return out;\n\t};\n\t\n\t/**\n\t * Rotates a mat3 by the given angle\n\t *\n\t * @param {mat3} out the receiving matrix\n\t * @param {mat3} a the matrix to rotate\n\t * @param {Number} rad the angle to rotate the matrix by\n\t * @returns {mat3} out\n\t */\n\tmat3.rotate = function (out, a, rad) {\n\t var a00 = a[0], a01 = a[1], a02 = a[2],\n\t a10 = a[3], a11 = a[4], a12 = a[5],\n\t a20 = a[6], a21 = a[7], a22 = a[8],\n\t\n\t s = Math.sin(rad),\n\t c = Math.cos(rad);\n\t\n\t out[0] = c * a00 + s * a10;\n\t out[1] = c * a01 + s * a11;\n\t out[2] = c * a02 + s * a12;\n\t\n\t out[3] = c * a10 - s * a00;\n\t out[4] = c * a11 - s * a01;\n\t out[5] = c * a12 - s * a02;\n\t\n\t out[6] = a20;\n\t out[7] = a21;\n\t out[8] = a22;\n\t return out;\n\t};\n\t\n\t/**\n\t * Scales the mat3 by the dimensions in the given vec2\n\t *\n\t * @param {mat3} out the receiving matrix\n\t * @param {mat3} a the matrix to rotate\n\t * @param {vec2} v the vec2 to scale the matrix by\n\t * @returns {mat3} out\n\t **/\n\tmat3.scale = function(out, a, v) {\n\t var x = v[0], y = v[1];\n\t\n\t out[0] = x * a[0];\n\t out[1] = x * a[1];\n\t out[2] = x * a[2];\n\t\n\t out[3] = y * a[3];\n\t out[4] = y * a[4];\n\t out[5] = y * a[5];\n\t\n\t out[6] = a[6];\n\t out[7] = a[7];\n\t out[8] = a[8];\n\t return out;\n\t};\n\t\n\t/**\n\t * Creates a matrix from a vector translation\n\t * This is equivalent to (but much faster than):\n\t *\n\t * mat3.identity(dest);\n\t * mat3.translate(dest, dest, vec);\n\t *\n\t * @param {mat3} out mat3 receiving operation result\n\t * @param {vec2} v Translation vector\n\t * @returns {mat3} out\n\t */\n\tmat3.fromTranslation = function(out, v) {\n\t out[0] = 1;\n\t out[1] = 0;\n\t out[2] = 0;\n\t out[3] = 0;\n\t out[4] = 1;\n\t out[5] = 0;\n\t out[6] = v[0];\n\t out[7] = v[1];\n\t out[8] = 1;\n\t return out;\n\t}\n\t\n\t/**\n\t * Creates a matrix from a given angle\n\t * This is equivalent to (but much faster than):\n\t *\n\t * mat3.identity(dest);\n\t * mat3.rotate(dest, dest, rad);\n\t *\n\t * @param {mat3} out mat3 receiving operation result\n\t * @param {Number} rad the angle to rotate the matrix by\n\t * @returns {mat3} out\n\t */\n\tmat3.fromRotation = function(out, rad) {\n\t var s = Math.sin(rad), c = Math.cos(rad);\n\t\n\t out[0] = c;\n\t out[1] = s;\n\t out[2] = 0;\n\t\n\t out[3] = -s;\n\t out[4] = c;\n\t out[5] = 0;\n\t\n\t out[6] = 0;\n\t out[7] = 0;\n\t out[8] = 1;\n\t return out;\n\t}\n\t\n\t/**\n\t * Creates a matrix from a vector scaling\n\t * This is equivalent to (but much faster than):\n\t *\n\t * mat3.identity(dest);\n\t * mat3.scale(dest, dest, vec);\n\t *\n\t * @param {mat3} out mat3 receiving operation result\n\t * @param {vec2} v Scaling vector\n\t * @returns {mat3} out\n\t */\n\tmat3.fromScaling = function(out, v) {\n\t out[0] = v[0];\n\t out[1] = 0;\n\t out[2] = 0;\n\t\n\t out[3] = 0;\n\t out[4] = v[1];\n\t out[5] = 0;\n\t\n\t out[6] = 0;\n\t out[7] = 0;\n\t out[8] = 1;\n\t return out;\n\t}\n\t\n\t/**\n\t * Copies the values from a mat2d into a mat3\n\t *\n\t * @param {mat3} out the receiving matrix\n\t * @param {mat2d} a the matrix to copy\n\t * @returns {mat3} out\n\t **/\n\tmat3.fromMat2d = function(out, a) {\n\t out[0] = a[0];\n\t out[1] = a[1];\n\t out[2] = 0;\n\t\n\t out[3] = a[2];\n\t out[4] = a[3];\n\t out[5] = 0;\n\t\n\t out[6] = a[4];\n\t out[7] = a[5];\n\t out[8] = 1;\n\t return out;\n\t};\n\t\n\t/**\n\t* Calculates a 3x3 matrix from the given quaternion\n\t*\n\t* @param {mat3} out mat3 receiving operation result\n\t* @param {quat} q Quaternion to create matrix from\n\t*\n\t* @returns {mat3} out\n\t*/\n\tmat3.fromQuat = function (out, q) {\n\t var x = q[0], y = q[1], z = q[2], w = q[3],\n\t x2 = x + x,\n\t y2 = y + y,\n\t z2 = z + z,\n\t\n\t xx = x * x2,\n\t yx = y * x2,\n\t yy = y * y2,\n\t zx = z * x2,\n\t zy = z * y2,\n\t zz = z * z2,\n\t wx = w * x2,\n\t wy = w * y2,\n\t wz = w * z2;\n\t\n\t out[0] = 1 - yy - zz;\n\t out[3] = yx - wz;\n\t out[6] = zx + wy;\n\t\n\t out[1] = yx + wz;\n\t out[4] = 1 - xx - zz;\n\t out[7] = zy - wx;\n\t\n\t out[2] = zx - wy;\n\t out[5] = zy + wx;\n\t out[8] = 1 - xx - yy;\n\t\n\t return out;\n\t};\n\t\n\t/**\n\t* Calculates a 3x3 normal matrix (transpose inverse) from the 4x4 matrix\n\t*\n\t* @param {mat3} out mat3 receiving operation result\n\t* @param {mat4} a Mat4 to derive the normal matrix from\n\t*\n\t* @returns {mat3} out\n\t*/\n\tmat3.normalFromMat4 = function (out, a) {\n\t var a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3],\n\t a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7],\n\t a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11],\n\t a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15],\n\t\n\t b00 = a00 * a11 - a01 * a10,\n\t b01 = a00 * a12 - a02 * a10,\n\t b02 = a00 * a13 - a03 * a10,\n\t b03 = a01 * a12 - a02 * a11,\n\t b04 = a01 * a13 - a03 * a11,\n\t b05 = a02 * a13 - a03 * a12,\n\t b06 = a20 * a31 - a21 * a30,\n\t b07 = a20 * a32 - a22 * a30,\n\t b08 = a20 * a33 - a23 * a30,\n\t b09 = a21 * a32 - a22 * a31,\n\t b10 = a21 * a33 - a23 * a31,\n\t b11 = a22 * a33 - a23 * a32,\n\t\n\t // Calculate the determinant\n\t det = b00 * b11 - b01 * b10 + b02 * b09 + b03 * b08 - b04 * b07 + b05 * b06;\n\t\n\t if (!det) { \n\t return null; \n\t }\n\t det = 1.0 / det;\n\t\n\t out[0] = (a11 * b11 - a12 * b10 + a13 * b09) * det;\n\t out[1] = (a12 * b08 - a10 * b11 - a13 * b07) * det;\n\t out[2] = (a10 * b10 - a11 * b08 + a13 * b06) * det;\n\t\n\t out[3] = (a02 * b10 - a01 * b11 - a03 * b09) * det;\n\t out[4] = (a00 * b11 - a02 * b08 + a03 * b07) * det;\n\t out[5] = (a01 * b08 - a00 * b10 - a03 * b06) * det;\n\t\n\t out[6] = (a31 * b05 - a32 * b04 + a33 * b03) * det;\n\t out[7] = (a32 * b02 - a30 * b05 - a33 * b01) * det;\n\t out[8] = (a30 * b04 - a31 * b02 + a33 * b00) * det;\n\t\n\t return out;\n\t};\n\t\n\t/**\n\t * Returns a string representation of a mat3\n\t *\n\t * @param {mat3} mat matrix to represent as a string\n\t * @returns {String} string representation of the matrix\n\t */\n\tmat3.str = function (a) {\n\t return 'mat3(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' + \n\t a[3] + ', ' + a[4] + ', ' + a[5] + ', ' + \n\t a[6] + ', ' + a[7] + ', ' + a[8] + ')';\n\t};\n\t\n\t/**\n\t * Returns Frobenius norm of a mat3\n\t *\n\t * @param {mat3} a the matrix to calculate Frobenius norm of\n\t * @returns {Number} Frobenius norm\n\t */\n\tmat3.frob = function (a) {\n\t return(Math.sqrt(Math.pow(a[0], 2) + Math.pow(a[1], 2) + Math.pow(a[2], 2) + Math.pow(a[3], 2) + Math.pow(a[4], 2) + Math.pow(a[5], 2) + Math.pow(a[6], 2) + Math.pow(a[7], 2) + Math.pow(a[8], 2)))\n\t};\n\t\n\t\n\tmodule.exports = mat3;\n\n\n/***/ },\n/* 14 */\n/***/ function(module, exports, __webpack_require__) {\n\n\t/* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV.\n\t\n\tPermission is hereby granted, free of charge, to any person obtaining a copy\n\tof this software and associated documentation files (the \"Software\"), to deal\n\tin the Software without restriction, including without limitation the rights\n\tto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n\tcopies of the Software, and to permit persons to whom the Software is\n\tfurnished to do so, subject to the following conditions:\n\t\n\tThe above copyright notice and this permission notice shall be included in\n\tall copies or substantial portions of the Software.\n\t\n\tTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n\tIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n\tFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n\tAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n\tLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n\tOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n\tTHE SOFTWARE. */\n\t\n\tvar glMatrix = __webpack_require__(10);\n\t\n\t/**\n\t * @class 4x4 Matrix\n\t * @name mat4\n\t */\n\tvar mat4 = {};\n\t\n\t/**\n\t * Creates a new identity mat4\n\t *\n\t * @returns {mat4} a new 4x4 matrix\n\t */\n\tmat4.create = function() {\n\t var out = new glMatrix.ARRAY_TYPE(16);\n\t out[0] = 1;\n\t out[1] = 0;\n\t out[2] = 0;\n\t out[3] = 0;\n\t out[4] = 0;\n\t out[5] = 1;\n\t out[6] = 0;\n\t out[7] = 0;\n\t out[8] = 0;\n\t out[9] = 0;\n\t out[10] = 1;\n\t out[11] = 0;\n\t out[12] = 0;\n\t out[13] = 0;\n\t out[14] = 0;\n\t out[15] = 1;\n\t return out;\n\t};\n\t\n\t/**\n\t * Creates a new mat4 initialized with values from an existing matrix\n\t *\n\t * @param {mat4} a matrix to clone\n\t * @returns {mat4} a new 4x4 matrix\n\t */\n\tmat4.clone = function(a) {\n\t var out = new glMatrix.ARRAY_TYPE(16);\n\t out[0] = a[0];\n\t out[1] = a[1];\n\t out[2] = a[2];\n\t out[3] = a[3];\n\t out[4] = a[4];\n\t out[5] = a[5];\n\t out[6] = a[6];\n\t out[7] = a[7];\n\t out[8] = a[8];\n\t out[9] = a[9];\n\t out[10] = a[10];\n\t out[11] = a[11];\n\t out[12] = a[12];\n\t out[13] = a[13];\n\t out[14] = a[14];\n\t out[15] = a[15];\n\t return out;\n\t};\n\t\n\t/**\n\t * Copy the values from one mat4 to another\n\t *\n\t * @param {mat4} out the receiving matrix\n\t * @param {mat4} a the source matrix\n\t * @returns {mat4} out\n\t */\n\tmat4.copy = function(out, a) {\n\t out[0] = a[0];\n\t out[1] = a[1];\n\t out[2] = a[2];\n\t out[3] = a[3];\n\t out[4] = a[4];\n\t out[5] = a[5];\n\t out[6] = a[6];\n\t out[7] = a[7];\n\t out[8] = a[8];\n\t out[9] = a[9];\n\t out[10] = a[10];\n\t out[11] = a[11];\n\t out[12] = a[12];\n\t out[13] = a[13];\n\t out[14] = a[14];\n\t out[15] = a[15];\n\t return out;\n\t};\n\t\n\t/**\n\t * Set a mat4 to the identity matrix\n\t *\n\t * @param {mat4} out the receiving matrix\n\t * @returns {mat4} out\n\t */\n\tmat4.identity = function(out) {\n\t out[0] = 1;\n\t out[1] = 0;\n\t out[2] = 0;\n\t out[3] = 0;\n\t out[4] = 0;\n\t out[5] = 1;\n\t out[6] = 0;\n\t out[7] = 0;\n\t out[8] = 0;\n\t out[9] = 0;\n\t out[10] = 1;\n\t out[11] = 0;\n\t out[12] = 0;\n\t out[13] = 0;\n\t out[14] = 0;\n\t out[15] = 1;\n\t return out;\n\t};\n\t\n\t/**\n\t * Transpose the values of a mat4\n\t *\n\t * @param {mat4} out the receiving matrix\n\t * @param {mat4} a the source matrix\n\t * @returns {mat4} out\n\t */\n\tmat4.transpose = function(out, a) {\n\t // If we are transposing ourselves we can skip a few steps but have to cache some values\n\t if (out === a) {\n\t var a01 = a[1], a02 = a[2], a03 = a[3],\n\t a12 = a[6], a13 = a[7],\n\t a23 = a[11];\n\t\n\t out[1] = a[4];\n\t out[2] = a[8];\n\t out[3] = a[12];\n\t out[4] = a01;\n\t out[6] = a[9];\n\t out[7] = a[13];\n\t out[8] = a02;\n\t out[9] = a12;\n\t out[11] = a[14];\n\t out[12] = a03;\n\t out[13] = a13;\n\t out[14] = a23;\n\t } else {\n\t out[0] = a[0];\n\t out[1] = a[4];\n\t out[2] = a[8];\n\t out[3] = a[12];\n\t out[4] = a[1];\n\t out[5] = a[5];\n\t out[6] = a[9];\n\t out[7] = a[13];\n\t out[8] = a[2];\n\t out[9] = a[6];\n\t out[10] = a[10];\n\t out[11] = a[14];\n\t out[12] = a[3];\n\t out[13] = a[7];\n\t out[14] = a[11];\n\t out[15] = a[15];\n\t }\n\t \n\t return out;\n\t};\n\t\n\t/**\n\t * Inverts a mat4\n\t *\n\t * @param {mat4} out the receiving matrix\n\t * @param {mat4} a the source matrix\n\t * @returns {mat4} out\n\t */\n\tmat4.invert = function(out, a) {\n\t var a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3],\n\t a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7],\n\t a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11],\n\t a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15],\n\t\n\t b00 = a00 * a11 - a01 * a10,\n\t b01 = a00 * a12 - a02 * a10,\n\t b02 = a00 * a13 - a03 * a10,\n\t b03 = a01 * a12 - a02 * a11,\n\t b04 = a01 * a13 - a03 * a11,\n\t b05 = a02 * a13 - a03 * a12,\n\t b06 = a20 * a31 - a21 * a30,\n\t b07 = a20 * a32 - a22 * a30,\n\t b08 = a20 * a33 - a23 * a30,\n\t b09 = a21 * a32 - a22 * a31,\n\t b10 = a21 * a33 - a23 * a31,\n\t b11 = a22 * a33 - a23 * a32,\n\t\n\t // Calculate the determinant\n\t det = b00 * b11 - b01 * b10 + b02 * b09 + b03 * b08 - b04 * b07 + b05 * b06;\n\t\n\t if (!det) { \n\t return null; \n\t }\n\t det = 1.0 / det;\n\t\n\t out[0] = (a11 * b11 - a12 * b10 + a13 * b09) * det;\n\t out[1] = (a02 * b10 - a01 * b11 - a03 * b09) * det;\n\t out[2] = (a31 * b05 - a32 * b04 + a33 * b03) * det;\n\t out[3] = (a22 * b04 - a21 * b05 - a23 * b03) * det;\n\t out[4] = (a12 * b08 - a10 * b11 - a13 * b07) * det;\n\t out[5] = (a00 * b11 - a02 * b08 + a03 * b07) * det;\n\t out[6] = (a32 * b02 - a30 * b05 - a33 * b01) * det;\n\t out[7] = (a20 * b05 - a22 * b02 + a23 * b01) * det;\n\t out[8] = (a10 * b10 - a11 * b08 + a13 * b06) * det;\n\t out[9] = (a01 * b08 - a00 * b10 - a03 * b06) * det;\n\t out[10] = (a30 * b04 - a31 * b02 + a33 * b00) * det;\n\t out[11] = (a21 * b02 - a20 * b04 - a23 * b00) * det;\n\t out[12] = (a11 * b07 - a10 * b09 - a12 * b06) * det;\n\t out[13] = (a00 * b09 - a01 * b07 + a02 * b06) * det;\n\t out[14] = (a31 * b01 - a30 * b03 - a32 * b00) * det;\n\t out[15] = (a20 * b03 - a21 * b01 + a22 * b00) * det;\n\t\n\t return out;\n\t};\n\t\n\t/**\n\t * Calculates the adjugate of a mat4\n\t *\n\t * @param {mat4} out the receiving matrix\n\t * @param {mat4} a the source matrix\n\t * @returns {mat4} out\n\t */\n\tmat4.adjoint = function(out, a) {\n\t var a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3],\n\t a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7],\n\t a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11],\n\t a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15];\n\t\n\t out[0] = (a11 * (a22 * a33 - a23 * a32) - a21 * (a12 * a33 - a13 * a32) + a31 * (a12 * a23 - a13 * a22));\n\t out[1] = -(a01 * (a22 * a33 - a23 * a32) - a21 * (a02 * a33 - a03 * a32) + a31 * (a02 * a23 - a03 * a22));\n\t out[2] = (a01 * (a12 * a33 - a13 * a32) - a11 * (a02 * a33 - a03 * a32) + a31 * (a02 * a13 - a03 * a12));\n\t out[3] = -(a01 * (a12 * a23 - a13 * a22) - a11 * (a02 * a23 - a03 * a22) + a21 * (a02 * a13 - a03 * a12));\n\t out[4] = -(a10 * (a22 * a33 - a23 * a32) - a20 * (a12 * a33 - a13 * a32) + a30 * (a12 * a23 - a13 * a22));\n\t out[5] = (a00 * (a22 * a33 - a23 * a32) - a20 * (a02 * a33 - a03 * a32) + a30 * (a02 * a23 - a03 * a22));\n\t out[6] = -(a00 * (a12 * a33 - a13 * a32) - a10 * (a02 * a33 - a03 * a32) + a30 * (a02 * a13 - a03 * a12));\n\t out[7] = (a00 * (a12 * a23 - a13 * a22) - a10 * (a02 * a23 - a03 * a22) + a20 * (a02 * a13 - a03 * a12));\n\t out[8] = (a10 * (a21 * a33 - a23 * a31) - a20 * (a11 * a33 - a13 * a31) + a30 * (a11 * a23 - a13 * a21));\n\t out[9] = -(a00 * (a21 * a33 - a23 * a31) - a20 * (a01 * a33 - a03 * a31) + a30 * (a01 * a23 - a03 * a21));\n\t out[10] = (a00 * (a11 * a33 - a13 * a31) - a10 * (a01 * a33 - a03 * a31) + a30 * (a01 * a13 - a03 * a11));\n\t out[11] = -(a00 * (a11 * a23 - a13 * a21) - a10 * (a01 * a23 - a03 * a21) + a20 * (a01 * a13 - a03 * a11));\n\t out[12] = -(a10 * (a21 * a32 - a22 * a31) - a20 * (a11 * a32 - a12 * a31) + a30 * (a11 * a22 - a12 * a21));\n\t out[13] = (a00 * (a21 * a32 - a22 * a31) - a20 * (a01 * a32 - a02 * a31) + a30 * (a01 * a22 - a02 * a21));\n\t out[14] = -(a00 * (a11 * a32 - a12 * a31) - a10 * (a01 * a32 - a02 * a31) + a30 * (a01 * a12 - a02 * a11));\n\t out[15] = (a00 * (a11 * a22 - a12 * a21) - a10 * (a01 * a22 - a02 * a21) + a20 * (a01 * a12 - a02 * a11));\n\t return out;\n\t};\n\t\n\t/**\n\t * Calculates the determinant of a mat4\n\t *\n\t * @param {mat4} a the source matrix\n\t * @returns {Number} determinant of a\n\t */\n\tmat4.determinant = function (a) {\n\t var a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3],\n\t a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7],\n\t a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11],\n\t a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15],\n\t\n\t b00 = a00 * a11 - a01 * a10,\n\t b01 = a00 * a12 - a02 * a10,\n\t b02 = a00 * a13 - a03 * a10,\n\t b03 = a01 * a12 - a02 * a11,\n\t b04 = a01 * a13 - a03 * a11,\n\t b05 = a02 * a13 - a03 * a12,\n\t b06 = a20 * a31 - a21 * a30,\n\t b07 = a20 * a32 - a22 * a30,\n\t b08 = a20 * a33 - a23 * a30,\n\t b09 = a21 * a32 - a22 * a31,\n\t b10 = a21 * a33 - a23 * a31,\n\t b11 = a22 * a33 - a23 * a32;\n\t\n\t // Calculate the determinant\n\t return b00 * b11 - b01 * b10 + b02 * b09 + b03 * b08 - b04 * b07 + b05 * b06;\n\t};\n\t\n\t/**\n\t * Multiplies two mat4's\n\t *\n\t * @param {mat4} out the receiving matrix\n\t * @param {mat4} a the first operand\n\t * @param {mat4} b the second operand\n\t * @returns {mat4} out\n\t */\n\tmat4.multiply = function (out, a, b) {\n\t var a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3],\n\t a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7],\n\t a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11],\n\t a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15];\n\t\n\t // Cache only the current line of the second matrix\n\t var b0 = b[0], b1 = b[1], b2 = b[2], b3 = b[3]; \n\t out[0] = b0*a00 + b1*a10 + b2*a20 + b3*a30;\n\t out[1] = b0*a01 + b1*a11 + b2*a21 + b3*a31;\n\t out[2] = b0*a02 + b1*a12 + b2*a22 + b3*a32;\n\t out[3] = b0*a03 + b1*a13 + b2*a23 + b3*a33;\n\t\n\t b0 = b[4]; b1 = b[5]; b2 = b[6]; b3 = b[7];\n\t out[4] = b0*a00 + b1*a10 + b2*a20 + b3*a30;\n\t out[5] = b0*a01 + b1*a11 + b2*a21 + b3*a31;\n\t out[6] = b0*a02 + b1*a12 + b2*a22 + b3*a32;\n\t out[7] = b0*a03 + b1*a13 + b2*a23 + b3*a33;\n\t\n\t b0 = b[8]; b1 = b[9]; b2 = b[10]; b3 = b[11];\n\t out[8] = b0*a00 + b1*a10 + b2*a20 + b3*a30;\n\t out[9] = b0*a01 + b1*a11 + b2*a21 + b3*a31;\n\t out[10] = b0*a02 + b1*a12 + b2*a22 + b3*a32;\n\t out[11] = b0*a03 + b1*a13 + b2*a23 + b3*a33;\n\t\n\t b0 = b[12]; b1 = b[13]; b2 = b[14]; b3 = b[15];\n\t out[12] = b0*a00 + b1*a10 + b2*a20 + b3*a30;\n\t out[13] = b0*a01 + b1*a11 + b2*a21 + b3*a31;\n\t out[14] = b0*a02 + b1*a12 + b2*a22 + b3*a32;\n\t out[15] = b0*a03 + b1*a13 + b2*a23 + b3*a33;\n\t return out;\n\t};\n\t\n\t/**\n\t * Alias for {@link mat4.multiply}\n\t * @function\n\t */\n\tmat4.mul = mat4.multiply;\n\t\n\t/**\n\t * Translate a mat4 by the given vector\n\t *\n\t * @param {mat4} out the receiving matrix\n\t * @param {mat4} a the matrix to translate\n\t * @param {vec3} v vector to translate by\n\t * @returns {mat4} out\n\t */\n\tmat4.translate = function (out, a, v) {\n\t var x = v[0], y = v[1], z = v[2],\n\t a00, a01, a02, a03,\n\t a10, a11, a12, a13,\n\t a20, a21, a22, a23;\n\t\n\t if (a === out) {\n\t out[12] = a[0] * x + a[4] * y + a[8] * z + a[12];\n\t out[13] = a[1] * x + a[5] * y + a[9] * z + a[13];\n\t out[14] = a[2] * x + a[6] * y + a[10] * z + a[14];\n\t out[15] = a[3] * x + a[7] * y + a[11] * z + a[15];\n\t } else {\n\t a00 = a[0]; a01 = a[1]; a02 = a[2]; a03 = a[3];\n\t a10 = a[4]; a11 = a[5]; a12 = a[6]; a13 = a[7];\n\t a20 = a[8]; a21 = a[9]; a22 = a[10]; a23 = a[11];\n\t\n\t out[0] = a00; out[1] = a01; out[2] = a02; out[3] = a03;\n\t out[4] = a10; out[5] = a11; out[6] = a12; out[7] = a13;\n\t out[8] = a20; out[9] = a21; out[10] = a22; out[11] = a23;\n\t\n\t out[12] = a00 * x + a10 * y + a20 * z + a[12];\n\t out[13] = a01 * x + a11 * y + a21 * z + a[13];\n\t out[14] = a02 * x + a12 * y + a22 * z + a[14];\n\t out[15] = a03 * x + a13 * y + a23 * z + a[15];\n\t }\n\t\n\t return out;\n\t};\n\t\n\t/**\n\t * Scales the mat4 by the dimensions in the given vec3\n\t *\n\t * @param {mat4} out the receiving matrix\n\t * @param {mat4} a the matrix to scale\n\t * @param {vec3} v the vec3 to scale the matrix by\n\t * @returns {mat4} out\n\t **/\n\tmat4.scale = function(out, a, v) {\n\t var x = v[0], y = v[1], z = v[2];\n\t\n\t out[0] = a[0] * x;\n\t out[1] = a[1] * x;\n\t out[2] = a[2] * x;\n\t out[3] = a[3] * x;\n\t out[4] = a[4] * y;\n\t out[5] = a[5] * y;\n\t out[6] = a[6] * y;\n\t out[7] = a[7] * y;\n\t out[8] = a[8] * z;\n\t out[9] = a[9] * z;\n\t out[10] = a[10] * z;\n\t out[11] = a[11] * z;\n\t out[12] = a[12];\n\t out[13] = a[13];\n\t out[14] = a[14];\n\t out[15] = a[15];\n\t return out;\n\t};\n\t\n\t/**\n\t * Rotates a mat4 by the given angle around the given axis\n\t *\n\t * @param {mat4} out the receiving matrix\n\t * @param {mat4} a the matrix to rotate\n\t * @param {Number} rad the angle to rotate the matrix by\n\t * @param {vec3} axis the axis to rotate around\n\t * @returns {mat4} out\n\t */\n\tmat4.rotate = function (out, a, rad, axis) {\n\t var x = axis[0], y = axis[1], z = axis[2],\n\t len = Math.sqrt(x * x + y * y + z * z),\n\t s, c, t,\n\t a00, a01, a02, a03,\n\t a10, a11, a12, a13,\n\t a20, a21, a22, a23,\n\t b00, b01, b02,\n\t b10, b11, b12,\n\t b20, b21, b22;\n\t\n\t if (Math.abs(len) < glMatrix.EPSILON) { return null; }\n\t \n\t len = 1 / len;\n\t x *= len;\n\t y *= len;\n\t z *= len;\n\t\n\t s = Math.sin(rad);\n\t c = Math.cos(rad);\n\t t = 1 - c;\n\t\n\t a00 = a[0]; a01 = a[1]; a02 = a[2]; a03 = a[3];\n\t a10 = a[4]; a11 = a[5]; a12 = a[6]; a13 = a[7];\n\t a20 = a[8]; a21 = a[9]; a22 = a[10]; a23 = a[11];\n\t\n\t // Construct the elements of the rotation matrix\n\t b00 = x * x * t + c; b01 = y * x * t + z * s; b02 = z * x * t - y * s;\n\t b10 = x * y * t - z * s; b11 = y * y * t + c; b12 = z * y * t + x * s;\n\t b20 = x * z * t + y * s; b21 = y * z * t - x * s; b22 = z * z * t + c;\n\t\n\t // Perform rotation-specific matrix multiplication\n\t out[0] = a00 * b00 + a10 * b01 + a20 * b02;\n\t out[1] = a01 * b00 + a11 * b01 + a21 * b02;\n\t out[2] = a02 * b00 + a12 * b01 + a22 * b02;\n\t out[3] = a03 * b00 + a13 * b01 + a23 * b02;\n\t out[4] = a00 * b10 + a10 * b11 + a20 * b12;\n\t out[5] = a01 * b10 + a11 * b11 + a21 * b12;\n\t out[6] = a02 * b10 + a12 * b11 + a22 * b12;\n\t out[7] = a03 * b10 + a13 * b11 + a23 * b12;\n\t out[8] = a00 * b20 + a10 * b21 + a20 * b22;\n\t out[9] = a01 * b20 + a11 * b21 + a21 * b22;\n\t out[10] = a02 * b20 + a12 * b21 + a22 * b22;\n\t out[11] = a03 * b20 + a13 * b21 + a23 * b22;\n\t\n\t if (a !== out) { // If the source and destination differ, copy the unchanged last row\n\t out[12] = a[12];\n\t out[13] = a[13];\n\t out[14] = a[14];\n\t out[15] = a[15];\n\t }\n\t return out;\n\t};\n\t\n\t/**\n\t * Rotates a matrix by the given angle around the X axis\n\t *\n\t * @param {mat4} out the receiving matrix\n\t * @param {mat4} a the matrix to rotate\n\t * @param {Number} rad the angle to rotate the matrix by\n\t * @returns {mat4} out\n\t */\n\tmat4.rotateX = function (out, a, rad) {\n\t var s = Math.sin(rad),\n\t c = Math.cos(rad),\n\t a10 = a[4],\n\t a11 = a[5],\n\t a12 = a[6],\n\t a13 = a[7],\n\t a20 = a[8],\n\t a21 = a[9],\n\t a22 = a[10],\n\t a23 = a[11];\n\t\n\t if (a !== out) { // If the source and destination differ, copy the unchanged rows\n\t out[0] = a[0];\n\t out[1] = a[1];\n\t out[2] = a[2];\n\t out[3] = a[3];\n\t out[12] = a[12];\n\t out[13] = a[13];\n\t out[14] = a[14];\n\t out[15] = a[15];\n\t }\n\t\n\t // Perform axis-specific matrix multiplication\n\t out[4] = a10 * c + a20 * s;\n\t out[5] = a11 * c + a21 * s;\n\t out[6] = a12 * c + a22 * s;\n\t out[7] = a13 * c + a23 * s;\n\t out[8] = a20 * c - a10 * s;\n\t out[9] = a21 * c - a11 * s;\n\t out[10] = a22 * c - a12 * s;\n\t out[11] = a23 * c - a13 * s;\n\t return out;\n\t};\n\t\n\t/**\n\t * Rotates a matrix by the given angle around the Y axis\n\t *\n\t * @param {mat4} out the receiving matrix\n\t * @param {mat4} a the matrix to rotate\n\t * @param {Number} rad the angle to rotate the matrix by\n\t * @returns {mat4} out\n\t */\n\tmat4.rotateY = function (out, a, rad) {\n\t var s = Math.sin(rad),\n\t c = Math.cos(rad),\n\t a00 = a[0],\n\t a01 = a[1],\n\t a02 = a[2],\n\t a03 = a[3],\n\t a20 = a[8],\n\t a21 = a[9],\n\t a22 = a[10],\n\t a23 = a[11];\n\t\n\t if (a !== out) { // If the source and destination differ, copy the unchanged rows\n\t out[4] = a[4];\n\t out[5] = a[5];\n\t out[6] = a[6];\n\t out[7] = a[7];\n\t out[12] = a[12];\n\t out[13] = a[13];\n\t out[14] = a[14];\n\t out[15] = a[15];\n\t }\n\t\n\t // Perform axis-specific matrix multiplication\n\t out[0] = a00 * c - a20 * s;\n\t out[1] = a01 * c - a21 * s;\n\t out[2] = a02 * c - a22 * s;\n\t out[3] = a03 * c - a23 * s;\n\t out[8] = a00 * s + a20 * c;\n\t out[9] = a01 * s + a21 * c;\n\t out[10] = a02 * s + a22 * c;\n\t out[11] = a03 * s + a23 * c;\n\t return out;\n\t};\n\t\n\t/**\n\t * Rotates a matrix by the given angle around the Z axis\n\t *\n\t * @param {mat4} out the receiving matrix\n\t * @param {mat4} a the matrix to rotate\n\t * @param {Number} rad the angle to rotate the matrix by\n\t * @returns {mat4} out\n\t */\n\tmat4.rotateZ = function (out, a, rad) {\n\t var s = Math.sin(rad),\n\t c = Math.cos(rad),\n\t a00 = a[0],\n\t a01 = a[1],\n\t a02 = a[2],\n\t a03 = a[3],\n\t a10 = a[4],\n\t a11 = a[5],\n\t a12 = a[6],\n\t a13 = a[7];\n\t\n\t if (a !== out) { // If the source and destination differ, copy the unchanged last row\n\t out[8] = a[8];\n\t out[9] = a[9];\n\t out[10] = a[10];\n\t out[11] = a[11];\n\t out[12] = a[12];\n\t out[13] = a[13];\n\t out[14] = a[14];\n\t out[15] = a[15];\n\t }\n\t\n\t // Perform axis-specific matrix multiplication\n\t out[0] = a00 * c + a10 * s;\n\t out[1] = a01 * c + a11 * s;\n\t out[2] = a02 * c + a12 * s;\n\t out[3] = a03 * c + a13 * s;\n\t out[4] = a10 * c - a00 * s;\n\t out[5] = a11 * c - a01 * s;\n\t out[6] = a12 * c - a02 * s;\n\t out[7] = a13 * c - a03 * s;\n\t return out;\n\t};\n\t\n\t/**\n\t * Creates a matrix from a vector translation\n\t * This is equivalent to (but much faster than):\n\t *\n\t * mat4.identity(dest);\n\t * mat4.translate(dest, dest, vec);\n\t *\n\t * @param {mat4} out mat4 receiving operation result\n\t * @param {vec3} v Translation vector\n\t * @returns {mat4} out\n\t */\n\tmat4.fromTranslation = function(out, v) {\n\t out[0] = 1;\n\t out[1] = 0;\n\t out[2] = 0;\n\t out[3] = 0;\n\t out[4] = 0;\n\t out[5] = 1;\n\t out[6] = 0;\n\t out[7] = 0;\n\t out[8] = 0;\n\t out[9] = 0;\n\t out[10] = 1;\n\t out[11] = 0;\n\t out[12] = v[0];\n\t out[13] = v[1];\n\t out[14] = v[2];\n\t out[15] = 1;\n\t return out;\n\t}\n\t\n\t/**\n\t * Creates a matrix from a vector scaling\n\t * This is equivalent to (but much faster than):\n\t *\n\t * mat4.identity(dest);\n\t * mat4.scale(dest, dest, vec);\n\t *\n\t * @param {mat4} out mat4 receiving operation result\n\t * @param {vec3} v Scaling vector\n\t * @returns {mat4} out\n\t */\n\tmat4.fromScaling = function(out, v) {\n\t out[0] = v[0];\n\t out[1] = 0;\n\t out[2] = 0;\n\t out[3] = 0;\n\t out[4] = 0;\n\t out[5] = v[1];\n\t out[6] = 0;\n\t out[7] = 0;\n\t out[8] = 0;\n\t out[9] = 0;\n\t out[10] = v[2];\n\t out[11] = 0;\n\t out[12] = 0;\n\t out[13] = 0;\n\t out[14] = 0;\n\t out[15] = 1;\n\t return out;\n\t}\n\t\n\t/**\n\t * Creates a matrix from a given angle around a given axis\n\t * This is equivalent to (but much faster than):\n\t *\n\t * mat4.identity(dest);\n\t * mat4.rotate(dest, dest, rad, axis);\n\t *\n\t * @param {mat4} out mat4 receiving operation result\n\t * @param {Number} rad the angle to rotate the matrix by\n\t * @param {vec3} axis the axis to rotate around\n\t * @returns {mat4} out\n\t */\n\tmat4.fromRotation = function(out, rad, axis) {\n\t var x = axis[0], y = axis[1], z = axis[2],\n\t len = Math.sqrt(x * x + y * y + z * z),\n\t s, c, t;\n\t \n\t if (Math.abs(len) < glMatrix.EPSILON) { return null; }\n\t \n\t len = 1 / len;\n\t x *= len;\n\t y *= len;\n\t z *= len;\n\t \n\t s = Math.sin(rad);\n\t c = Math.cos(rad);\n\t t = 1 - c;\n\t \n\t // Perform rotation-specific matrix multiplication\n\t out[0] = x * x * t + c;\n\t out[1] = y * x * t + z * s;\n\t out[2] = z * x * t - y * s;\n\t out[3] = 0;\n\t out[4] = x * y * t - z * s;\n\t out[5] = y * y * t + c;\n\t out[6] = z * y * t + x * s;\n\t out[7] = 0;\n\t out[8] = x * z * t + y * s;\n\t out[9] = y * z * t - x * s;\n\t out[10] = z * z * t + c;\n\t out[11] = 0;\n\t out[12] = 0;\n\t out[13] = 0;\n\t out[14] = 0;\n\t out[15] = 1;\n\t return out;\n\t}\n\t\n\t/**\n\t * Creates a matrix from the given angle around the X axis\n\t * This is equivalent to (but much faster than):\n\t *\n\t * mat4.identity(dest);\n\t * mat4.rotateX(dest, dest, rad);\n\t *\n\t * @param {mat4} out mat4 receiving operation result\n\t * @param {Number} rad the angle to rotate the matrix by\n\t * @returns {mat4} out\n\t */\n\tmat4.fromXRotation = function(out, rad) {\n\t var s = Math.sin(rad),\n\t c = Math.cos(rad);\n\t \n\t // Perform axis-specific matrix multiplication\n\t out[0] = 1;\n\t out[1] = 0;\n\t out[2] = 0;\n\t out[3] = 0;\n\t out[4] = 0;\n\t out[5] = c;\n\t out[6] = s;\n\t out[7] = 0;\n\t out[8] = 0;\n\t out[9] = -s;\n\t out[10] = c;\n\t out[11] = 0;\n\t out[12] = 0;\n\t out[13] = 0;\n\t out[14] = 0;\n\t out[15] = 1;\n\t return out;\n\t}\n\t\n\t/**\n\t * Creates a matrix from the given angle around the Y axis\n\t * This is equivalent to (but much faster than):\n\t *\n\t * mat4.identity(dest);\n\t * mat4.rotateY(dest, dest, rad);\n\t *\n\t * @param {mat4} out mat4 receiving operation result\n\t * @param {Number} rad the angle to rotate the matrix by\n\t * @returns {mat4} out\n\t */\n\tmat4.fromYRotation = function(out, rad) {\n\t var s = Math.sin(rad),\n\t c = Math.cos(rad);\n\t \n\t // Perform axis-specific matrix multiplication\n\t out[0] = c;\n\t out[1] = 0;\n\t out[2] = -s;\n\t out[3] = 0;\n\t out[4] = 0;\n\t out[5] = 1;\n\t out[6] = 0;\n\t out[7] = 0;\n\t out[8] = s;\n\t out[9] = 0;\n\t out[10] = c;\n\t out[11] = 0;\n\t out[12] = 0;\n\t out[13] = 0;\n\t out[14] = 0;\n\t out[15] = 1;\n\t return out;\n\t}\n\t\n\t/**\n\t * Creates a matrix from the given angle around the Z axis\n\t * This is equivalent to (but much faster than):\n\t *\n\t * mat4.identity(dest);\n\t * mat4.rotateZ(dest, dest, rad);\n\t *\n\t * @param {mat4} out mat4 receiving operation result\n\t * @param {Number} rad the angle to rotate the matrix by\n\t * @returns {mat4} out\n\t */\n\tmat4.fromZRotation = function(out, rad) {\n\t var s = Math.sin(rad),\n\t c = Math.cos(rad);\n\t \n\t // Perform axis-specific matrix multiplication\n\t out[0] = c;\n\t out[1] = s;\n\t out[2] = 0;\n\t out[3] = 0;\n\t out[4] = -s;\n\t out[5] = c;\n\t out[6] = 0;\n\t out[7] = 0;\n\t out[8] = 0;\n\t out[9] = 0;\n\t out[10] = 1;\n\t out[11] = 0;\n\t out[12] = 0;\n\t out[13] = 0;\n\t out[14] = 0;\n\t out[15] = 1;\n\t return out;\n\t}\n\t\n\t/**\n\t * Creates a matrix from a quaternion rotation and vector translation\n\t * This is equivalent to (but much faster than):\n\t *\n\t * mat4.identity(dest);\n\t * mat4.translate(dest, vec);\n\t * var quatMat = mat4.create();\n\t * quat4.toMat4(quat, quatMat);\n\t * mat4.multiply(dest, quatMat);\n\t *\n\t * @param {mat4} out mat4 receiving operation result\n\t * @param {quat4} q Rotation quaternion\n\t * @param {vec3} v Translation vector\n\t * @returns {mat4} out\n\t */\n\tmat4.fromRotationTranslation = function (out, q, v) {\n\t // Quaternion math\n\t var x = q[0], y = q[1], z = q[2], w = q[3],\n\t x2 = x + x,\n\t y2 = y + y,\n\t z2 = z + z,\n\t\n\t xx = x * x2,\n\t xy = x * y2,\n\t xz = x * z2,\n\t yy = y * y2,\n\t yz = y * z2,\n\t zz = z * z2,\n\t wx = w * x2,\n\t wy = w * y2,\n\t wz = w * z2;\n\t\n\t out[0] = 1 - (yy + zz);\n\t out[1] = xy + wz;\n\t out[2] = xz - wy;\n\t out[3] = 0;\n\t out[4] = xy - wz;\n\t out[5] = 1 - (xx + zz);\n\t out[6] = yz + wx;\n\t out[7] = 0;\n\t out[8] = xz + wy;\n\t out[9] = yz - wx;\n\t out[10] = 1 - (xx + yy);\n\t out[11] = 0;\n\t out[12] = v[0];\n\t out[13] = v[1];\n\t out[14] = v[2];\n\t out[15] = 1;\n\t \n\t return out;\n\t};\n\t\n\t/**\n\t * Creates a matrix from a quaternion rotation, vector translation and vector scale\n\t * This is equivalent to (but much faster than):\n\t *\n\t * mat4.identity(dest);\n\t * mat4.translate(dest, vec);\n\t * var quatMat = mat4.create();\n\t * quat4.toMat4(quat, quatMat);\n\t * mat4.multiply(dest, quatMat);\n\t * mat4.scale(dest, scale)\n\t *\n\t * @param {mat4} out mat4 receiving operation result\n\t * @param {quat4} q Rotation quaternion\n\t * @param {vec3} v Translation vector\n\t * @param {vec3} s Scaling vector\n\t * @returns {mat4} out\n\t */\n\tmat4.fromRotationTranslationScale = function (out, q, v, s) {\n\t // Quaternion math\n\t var x = q[0], y = q[1], z = q[2], w = q[3],\n\t x2 = x + x,\n\t y2 = y + y,\n\t z2 = z + z,\n\t\n\t xx = x * x2,\n\t xy = x * y2,\n\t xz = x * z2,\n\t yy = y * y2,\n\t yz = y * z2,\n\t zz = z * z2,\n\t wx = w * x2,\n\t wy = w * y2,\n\t wz = w * z2,\n\t sx = s[0],\n\t sy = s[1],\n\t sz = s[2];\n\t\n\t out[0] = (1 - (yy + zz)) * sx;\n\t out[1] = (xy + wz) * sx;\n\t out[2] = (xz - wy) * sx;\n\t out[3] = 0;\n\t out[4] = (xy - wz) * sy;\n\t out[5] = (1 - (xx + zz)) * sy;\n\t out[6] = (yz + wx) * sy;\n\t out[7] = 0;\n\t out[8] = (xz + wy) * sz;\n\t out[9] = (yz - wx) * sz;\n\t out[10] = (1 - (xx + yy)) * sz;\n\t out[11] = 0;\n\t out[12] = v[0];\n\t out[13] = v[1];\n\t out[14] = v[2];\n\t out[15] = 1;\n\t \n\t return out;\n\t};\n\t\n\t/**\n\t * Creates a matrix from a quaternion rotation, vector translation and vector scale, rotating and scaling around the given origin\n\t * This is equivalent to (but much faster than):\n\t *\n\t * mat4.identity(dest);\n\t * mat4.translate(dest, vec);\n\t * mat4.translate(dest, origin);\n\t * var quatMat = mat4.create();\n\t * quat4.toMat4(quat, quatMat);\n\t * mat4.multiply(dest, quatMat);\n\t * mat4.scale(dest, scale)\n\t * mat4.translate(dest, negativeOrigin);\n\t *\n\t * @param {mat4} out mat4 receiving operation result\n\t * @param {quat4} q Rotation quaternion\n\t * @param {vec3} v Translation vector\n\t * @param {vec3} s Scaling vector\n\t * @param {vec3} o The origin vector around which to scale and rotate\n\t * @returns {mat4} out\n\t */\n\tmat4.fromRotationTranslationScaleOrigin = function (out, q, v, s, o) {\n\t // Quaternion math\n\t var x = q[0], y = q[1], z = q[2], w = q[3],\n\t x2 = x + x,\n\t y2 = y + y,\n\t z2 = z + z,\n\t\n\t xx = x * x2,\n\t xy = x * y2,\n\t xz = x * z2,\n\t yy = y * y2,\n\t yz = y * z2,\n\t zz = z * z2,\n\t wx = w * x2,\n\t wy = w * y2,\n\t wz = w * z2,\n\t \n\t sx = s[0],\n\t sy = s[1],\n\t sz = s[2],\n\t\n\t ox = o[0],\n\t oy = o[1],\n\t oz = o[2];\n\t \n\t out[0] = (1 - (yy + zz)) * sx;\n\t out[1] = (xy + wz) * sx;\n\t out[2] = (xz - wy) * sx;\n\t out[3] = 0;\n\t out[4] = (xy - wz) * sy;\n\t out[5] = (1 - (xx + zz)) * sy;\n\t out[6] = (yz + wx) * sy;\n\t out[7] = 0;\n\t out[8] = (xz + wy) * sz;\n\t out[9] = (yz - wx) * sz;\n\t out[10] = (1 - (xx + yy)) * sz;\n\t out[11] = 0;\n\t out[12] = v[0] + ox - (out[0] * ox + out[4] * oy + out[8] * oz);\n\t out[13] = v[1] + oy - (out[1] * ox + out[5] * oy + out[9] * oz);\n\t out[14] = v[2] + oz - (out[2] * ox + out[6] * oy + out[10] * oz);\n\t out[15] = 1;\n\t \n\t return out;\n\t};\n\t\n\tmat4.fromQuat = function (out, q) {\n\t var x = q[0], y = q[1], z = q[2], w = q[3],\n\t x2 = x + x,\n\t y2 = y + y,\n\t z2 = z + z,\n\t\n\t xx = x * x2,\n\t yx = y * x2,\n\t yy = y * y2,\n\t zx = z * x2,\n\t zy = z * y2,\n\t zz = z * z2,\n\t wx = w * x2,\n\t wy = w * y2,\n\t wz = w * z2;\n\t\n\t out[0] = 1 - yy - zz;\n\t out[1] = yx + wz;\n\t out[2] = zx - wy;\n\t out[3] = 0;\n\t\n\t out[4] = yx - wz;\n\t out[5] = 1 - xx - zz;\n\t out[6] = zy + wx;\n\t out[7] = 0;\n\t\n\t out[8] = zx + wy;\n\t out[9] = zy - wx;\n\t out[10] = 1 - xx - yy;\n\t out[11] = 0;\n\t\n\t out[12] = 0;\n\t out[13] = 0;\n\t out[14] = 0;\n\t out[15] = 1;\n\t\n\t return out;\n\t};\n\t\n\t/**\n\t * Generates a frustum matrix with the given bounds\n\t *\n\t * @param {mat4} out mat4 frustum matrix will be written into\n\t * @param {Number} left Left bound of the frustum\n\t * @param {Number} right Right bound of the frustum\n\t * @param {Number} bottom Bottom bound of the frustum\n\t * @param {Number} top Top bound of the frustum\n\t * @param {Number} near Near bound of the frustum\n\t * @param {Number} far Far bound of the frustum\n\t * @returns {mat4} out\n\t */\n\tmat4.frustum = function (out, left, right, bottom, top, near, far) {\n\t var rl = 1 / (right - left),\n\t tb = 1 / (top - bottom),\n\t nf = 1 / (near - far);\n\t out[0] = (near * 2) * rl;\n\t out[1] = 0;\n\t out[2] = 0;\n\t out[3] = 0;\n\t out[4] = 0;\n\t out[5] = (near * 2) * tb;\n\t out[6] = 0;\n\t out[7] = 0;\n\t out[8] = (right + left) * rl;\n\t out[9] = (top + bottom) * tb;\n\t out[10] = (far + near) * nf;\n\t out[11] = -1;\n\t out[12] = 0;\n\t out[13] = 0;\n\t out[14] = (far * near * 2) * nf;\n\t out[15] = 0;\n\t return out;\n\t};\n\t\n\t/**\n\t * Generates a perspective projection matrix with the given bounds\n\t *\n\t * @param {mat4} out mat4 frustum matrix will be written into\n\t * @param {number} fovy Vertical field of view in radians\n\t * @param {number} aspect Aspect ratio. typically viewport width/height\n\t * @param {number} near Near bound of the frustum\n\t * @param {number} far Far bound of the frustum\n\t * @returns {mat4} out\n\t */\n\tmat4.perspective = function (out, fovy, aspect, near, far) {\n\t var f = 1.0 / Math.tan(fovy / 2),\n\t nf = 1 / (near - far);\n\t out[0] = f / aspect;\n\t out[1] = 0;\n\t out[2] = 0;\n\t out[3] = 0;\n\t out[4] = 0;\n\t out[5] = f;\n\t out[6] = 0;\n\t out[7] = 0;\n\t out[8] = 0;\n\t out[9] = 0;\n\t out[10] = (far + near) * nf;\n\t out[11] = -1;\n\t out[12] = 0;\n\t out[13] = 0;\n\t out[14] = (2 * far * near) * nf;\n\t out[15] = 0;\n\t return out;\n\t};\n\t\n\t/**\n\t * Generates a perspective projection matrix with the given field of view.\n\t * This is primarily useful for generating projection matrices to be used\n\t * with the still experiemental WebVR API.\n\t *\n\t * @param {mat4} out mat4 frustum matrix will be written into\n\t * @param {number} fov Object containing the following values: upDegrees, downDegrees, leftDegrees, rightDegrees\n\t * @param {number} near Near bound of the frustum\n\t * @param {number} far Far bound of the frustum\n\t * @returns {mat4} out\n\t */\n\tmat4.perspectiveFromFieldOfView = function (out, fov, near, far) {\n\t var upTan = Math.tan(fov.upDegrees * Math.PI/180.0),\n\t downTan = Math.tan(fov.downDegrees * Math.PI/180.0),\n\t leftTan = Math.tan(fov.leftDegrees * Math.PI/180.0),\n\t rightTan = Math.tan(fov.rightDegrees * Math.PI/180.0),\n\t xScale = 2.0 / (leftTan + rightTan),\n\t yScale = 2.0 / (upTan + downTan);\n\t\n\t out[0] = xScale;\n\t out[1] = 0.0;\n\t out[2] = 0.0;\n\t out[3] = 0.0;\n\t out[4] = 0.0;\n\t out[5] = yScale;\n\t out[6] = 0.0;\n\t out[7] = 0.0;\n\t out[8] = -((leftTan - rightTan) * xScale * 0.5);\n\t out[9] = ((upTan - downTan) * yScale * 0.5);\n\t out[10] = far / (near - far);\n\t out[11] = -1.0;\n\t out[12] = 0.0;\n\t out[13] = 0.0;\n\t out[14] = (far * near) / (near - far);\n\t out[15] = 0.0;\n\t return out;\n\t}\n\t\n\t/**\n\t * Generates a orthogonal projection matrix with the given bounds\n\t *\n\t * @param {mat4} out mat4 frustum matrix will be written into\n\t * @param {number} left Left bound of the frustum\n\t * @param {number} right Right bound of the frustum\n\t * @param {number} bottom Bottom bound of the frustum\n\t * @param {number} top Top bound of the frustum\n\t * @param {number} near Near bound of the frustum\n\t * @param {number} far Far bound of the frustum\n\t * @returns {mat4} out\n\t */\n\tmat4.ortho = function (out, left, right, bottom, top, near, far) {\n\t var lr = 1 / (left - right),\n\t bt = 1 / (bottom - top),\n\t nf = 1 / (near - far);\n\t out[0] = -2 * lr;\n\t out[1] = 0;\n\t out[2] = 0;\n\t out[3] = 0;\n\t out[4] = 0;\n\t out[5] = -2 * bt;\n\t out[6] = 0;\n\t out[7] = 0;\n\t out[8] = 0;\n\t out[9] = 0;\n\t out[10] = 2 * nf;\n\t out[11] = 0;\n\t out[12] = (left + right) * lr;\n\t out[13] = (top + bottom) * bt;\n\t out[14] = (far + near) * nf;\n\t out[15] = 1;\n\t return out;\n\t};\n\t\n\t/**\n\t * Generates a look-at matrix with the given eye position, focal point, and up axis\n\t *\n\t * @param {mat4} out mat4 frustum matrix will be written into\n\t * @param {vec3} eye Position of the viewer\n\t * @param {vec3} center Point the viewer is looking at\n\t * @param {vec3} up vec3 pointing up\n\t * @returns {mat4} out\n\t */\n\tmat4.lookAt = function (out, eye, center, up) {\n\t var x0, x1, x2, y0, y1, y2, z0, z1, z2, len,\n\t eyex = eye[0],\n\t eyey = eye[1],\n\t eyez = eye[2],\n\t upx = up[0],\n\t upy = up[1],\n\t upz = up[2],\n\t centerx = center[0],\n\t centery = center[1],\n\t centerz = center[2];\n\t\n\t if (Math.abs(eyex - centerx) < glMatrix.EPSILON &&\n\t Math.abs(eyey - centery) < glMatrix.EPSILON &&\n\t Math.abs(eyez - centerz) < glMatrix.EPSILON) {\n\t return mat4.identity(out);\n\t }\n\t\n\t z0 = eyex - centerx;\n\t z1 = eyey - centery;\n\t z2 = eyez - centerz;\n\t\n\t len = 1 / Math.sqrt(z0 * z0 + z1 * z1 + z2 * z2);\n\t z0 *= len;\n\t z1 *= len;\n\t z2 *= len;\n\t\n\t x0 = upy * z2 - upz * z1;\n\t x1 = upz * z0 - upx * z2;\n\t x2 = upx * z1 - upy * z0;\n\t len = Math.sqrt(x0 * x0 + x1 * x1 + x2 * x2);\n\t if (!len) {\n\t x0 = 0;\n\t x1 = 0;\n\t x2 = 0;\n\t } else {\n\t len = 1 / len;\n\t x0 *= len;\n\t x1 *= len;\n\t x2 *= len;\n\t }\n\t\n\t y0 = z1 * x2 - z2 * x1;\n\t y1 = z2 * x0 - z0 * x2;\n\t y2 = z0 * x1 - z1 * x0;\n\t\n\t len = Math.sqrt(y0 * y0 + y1 * y1 + y2 * y2);\n\t if (!len) {\n\t y0 = 0;\n\t y1 = 0;\n\t y2 = 0;\n\t } else {\n\t len = 1 / len;\n\t y0 *= len;\n\t y1 *= len;\n\t y2 *= len;\n\t }\n\t\n\t out[0] = x0;\n\t out[1] = y0;\n\t out[2] = z0;\n\t out[3] = 0;\n\t out[4] = x1;\n\t out[5] = y1;\n\t out[6] = z1;\n\t out[7] = 0;\n\t out[8] = x2;\n\t out[9] = y2;\n\t out[10] = z2;\n\t out[11] = 0;\n\t out[12] = -(x0 * eyex + x1 * eyey + x2 * eyez);\n\t out[13] = -(y0 * eyex + y1 * eyey + y2 * eyez);\n\t out[14] = -(z0 * eyex + z1 * eyey + z2 * eyez);\n\t out[15] = 1;\n\t\n\t return out;\n\t};\n\t\n\t/**\n\t * Returns a string representation of a mat4\n\t *\n\t * @param {mat4} mat matrix to represent as a string\n\t * @returns {String} string representation of the matrix\n\t */\n\tmat4.str = function (a) {\n\t return 'mat4(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' + a[3] + ', ' +\n\t a[4] + ', ' + a[5] + ', ' + a[6] + ', ' + a[7] + ', ' +\n\t a[8] + ', ' + a[9] + ', ' + a[10] + ', ' + a[11] + ', ' + \n\t a[12] + ', ' + a[13] + ', ' + a[14] + ', ' + a[15] + ')';\n\t};\n\t\n\t/**\n\t * Returns Frobenius norm of a mat4\n\t *\n\t * @param {mat4} a the matrix to calculate Frobenius norm of\n\t * @returns {Number} Frobenius norm\n\t */\n\tmat4.frob = function (a) {\n\t return(Math.sqrt(Math.pow(a[0], 2) + Math.pow(a[1], 2) + Math.pow(a[2], 2) + Math.pow(a[3], 2) + Math.pow(a[4], 2) + Math.pow(a[5], 2) + Math.pow(a[6], 2) + Math.pow(a[7], 2) + Math.pow(a[8], 2) + Math.pow(a[9], 2) + Math.pow(a[10], 2) + Math.pow(a[11], 2) + Math.pow(a[12], 2) + Math.pow(a[13], 2) + Math.pow(a[14], 2) + Math.pow(a[15], 2) ))\n\t};\n\t\n\t\n\tmodule.exports = mat4;\n\n\n/***/ },\n/* 15 */\n/***/ function(module, exports, __webpack_require__) {\n\n\t/* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV.\n\t\n\tPermission is hereby granted, free of charge, to any person obtaining a copy\n\tof this software and associated documentation files (the \"Software\"), to deal\n\tin the Software without restriction, including without limitation the rights\n\tto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n\tcopies of the Software, and to permit persons to whom the Software is\n\tfurnished to do so, subject to the following conditions:\n\t\n\tThe above copyright notice and this permission notice shall be included in\n\tall copies or substantial portions of the Software.\n\t\n\tTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n\tIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n\tFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n\tAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n\tLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n\tOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n\tTHE SOFTWARE. */\n\t\n\tvar glMatrix = __webpack_require__(10);\n\tvar mat3 = __webpack_require__(13);\n\tvar vec3 = __webpack_require__(16);\n\tvar vec4 = __webpack_require__(17);\n\t\n\t/**\n\t * @class Quaternion\n\t * @name quat\n\t */\n\tvar quat = {};\n\t\n\t/**\n\t * Creates a new identity quat\n\t *\n\t * @returns {quat} a new quaternion\n\t */\n\tquat.create = function() {\n\t var out = new glMatrix.ARRAY_TYPE(4);\n\t out[0] = 0;\n\t out[1] = 0;\n\t out[2] = 0;\n\t out[3] = 1;\n\t return out;\n\t};\n\t\n\t/**\n\t * Sets a quaternion to represent the shortest rotation from one\n\t * vector to another.\n\t *\n\t * Both vectors are assumed to be unit length.\n\t *\n\t * @param {quat} out the receiving quaternion.\n\t * @param {vec3} a the initial vector\n\t * @param {vec3} b the destination vector\n\t * @returns {quat} out\n\t */\n\tquat.rotationTo = (function() {\n\t var tmpvec3 = vec3.create();\n\t var xUnitVec3 = vec3.fromValues(1,0,0);\n\t var yUnitVec3 = vec3.fromValues(0,1,0);\n\t\n\t return function(out, a, b) {\n\t var dot = vec3.dot(a, b);\n\t if (dot < -0.999999) {\n\t vec3.cross(tmpvec3, xUnitVec3, a);\n\t if (vec3.length(tmpvec3) < 0.000001)\n\t vec3.cross(tmpvec3, yUnitVec3, a);\n\t vec3.normalize(tmpvec3, tmpvec3);\n\t quat.setAxisAngle(out, tmpvec3, Math.PI);\n\t return out;\n\t } else if (dot > 0.999999) {\n\t out[0] = 0;\n\t out[1] = 0;\n\t out[2] = 0;\n\t out[3] = 1;\n\t return out;\n\t } else {\n\t vec3.cross(tmpvec3, a, b);\n\t out[0] = tmpvec3[0];\n\t out[1] = tmpvec3[1];\n\t out[2] = tmpvec3[2];\n\t out[3] = 1 + dot;\n\t return quat.normalize(out, out);\n\t }\n\t };\n\t})();\n\t\n\t/**\n\t * Sets the specified quaternion with values corresponding to the given\n\t * axes. Each axis is a vec3 and is expected to be unit length and\n\t * perpendicular to all other specified axes.\n\t *\n\t * @param {vec3} view the vector representing the viewing direction\n\t * @param {vec3} right the vector representing the local \"right\" direction\n\t * @param {vec3} up the vector representing the local \"up\" direction\n\t * @returns {quat} out\n\t */\n\tquat.setAxes = (function() {\n\t var matr = mat3.create();\n\t\n\t return function(out, view, right, up) {\n\t matr[0] = right[0];\n\t matr[3] = right[1];\n\t matr[6] = right[2];\n\t\n\t matr[1] = up[0];\n\t matr[4] = up[1];\n\t matr[7] = up[2];\n\t\n\t matr[2] = -view[0];\n\t matr[5] = -view[1];\n\t matr[8] = -view[2];\n\t\n\t return quat.normalize(out, quat.fromMat3(out, matr));\n\t };\n\t})();\n\t\n\t/**\n\t * Creates a new quat initialized with values from an existing quaternion\n\t *\n\t * @param {quat} a quaternion to clone\n\t * @returns {quat} a new quaternion\n\t * @function\n\t */\n\tquat.clone = vec4.clone;\n\t\n\t/**\n\t * Creates a new quat initialized with the given values\n\t *\n\t * @param {Number} x X component\n\t * @param {Number} y Y component\n\t * @param {Number} z Z component\n\t * @param {Number} w W component\n\t * @returns {quat} a new quaternion\n\t * @function\n\t */\n\tquat.fromValues = vec4.fromValues;\n\t\n\t/**\n\t * Copy the values from one quat to another\n\t *\n\t * @param {quat} out the receiving quaternion\n\t * @param {quat} a the source quaternion\n\t * @returns {quat} out\n\t * @function\n\t */\n\tquat.copy = vec4.copy;\n\t\n\t/**\n\t * Set the components of a quat to the given values\n\t *\n\t * @param {quat} out the receiving quaternion\n\t * @param {Number} x X component\n\t * @param {Number} y Y component\n\t * @param {Number} z Z component\n\t * @param {Number} w W component\n\t * @returns {quat} out\n\t * @function\n\t */\n\tquat.set = vec4.set;\n\t\n\t/**\n\t * Set a quat to the identity quaternion\n\t *\n\t * @param {quat} out the receiving quaternion\n\t * @returns {quat} out\n\t */\n\tquat.identity = function(out) {\n\t out[0] = 0;\n\t out[1] = 0;\n\t out[2] = 0;\n\t out[3] = 1;\n\t return out;\n\t};\n\t\n\t/**\n\t * Sets a quat from the given angle and rotation axis,\n\t * then returns it.\n\t *\n\t * @param {quat} out the receiving quaternion\n\t * @param {vec3} axis the axis around which to rotate\n\t * @param {Number} rad the angle in radians\n\t * @returns {quat} out\n\t **/\n\tquat.setAxisAngle = function(out, axis, rad) {\n\t rad = rad * 0.5;\n\t var s = Math.sin(rad);\n\t out[0] = s * axis[0];\n\t out[1] = s * axis[1];\n\t out[2] = s * axis[2];\n\t out[3] = Math.cos(rad);\n\t return out;\n\t};\n\t\n\t/**\n\t * Adds two quat's\n\t *\n\t * @param {quat} out the receiving quaternion\n\t * @param {quat} a the first operand\n\t * @param {quat} b the second operand\n\t * @returns {quat} out\n\t * @function\n\t */\n\tquat.add = vec4.add;\n\t\n\t/**\n\t * Multiplies two quat's\n\t *\n\t * @param {quat} out the receiving quaternion\n\t * @param {quat} a the first operand\n\t * @param {quat} b the second operand\n\t * @returns {quat} out\n\t */\n\tquat.multiply = function(out, a, b) {\n\t var ax = a[0], ay = a[1], az = a[2], aw = a[3],\n\t bx = b[0], by = b[1], bz = b[2], bw = b[3];\n\t\n\t out[0] = ax * bw + aw * bx + ay * bz - az * by;\n\t out[1] = ay * bw + aw * by + az * bx - ax * bz;\n\t out[2] = az * bw + aw * bz + ax * by - ay * bx;\n\t out[3] = aw * bw - ax * bx - ay * by - az * bz;\n\t return out;\n\t};\n\t\n\t/**\n\t * Alias for {@link quat.multiply}\n\t * @function\n\t */\n\tquat.mul = quat.multiply;\n\t\n\t/**\n\t * Scales a quat by a scalar number\n\t *\n\t * @param {quat} out the receiving vector\n\t * @param {quat} a the vector to scale\n\t * @param {Number} b amount to scale the vector by\n\t * @returns {quat} out\n\t * @function\n\t */\n\tquat.scale = vec4.scale;\n\t\n\t/**\n\t * Rotates a quaternion by the given angle about the X axis\n\t *\n\t * @param {quat} out quat receiving operation result\n\t * @param {quat} a quat to rotate\n\t * @param {number} rad angle (in radians) to rotate\n\t * @returns {quat} out\n\t */\n\tquat.rotateX = function (out, a, rad) {\n\t rad *= 0.5; \n\t\n\t var ax = a[0], ay = a[1], az = a[2], aw = a[3],\n\t bx = Math.sin(rad), bw = Math.cos(rad);\n\t\n\t out[0] = ax * bw + aw * bx;\n\t out[1] = ay * bw + az * bx;\n\t out[2] = az * bw - ay * bx;\n\t out[3] = aw * bw - ax * bx;\n\t return out;\n\t};\n\t\n\t/**\n\t * Rotates a quaternion by the given angle about the Y axis\n\t *\n\t * @param {quat} out quat receiving operation result\n\t * @param {quat} a quat to rotate\n\t * @param {number} rad angle (in radians) to rotate\n\t * @returns {quat} out\n\t */\n\tquat.rotateY = function (out, a, rad) {\n\t rad *= 0.5; \n\t\n\t var ax = a[0], ay = a[1], az = a[2], aw = a[3],\n\t by = Math.sin(rad), bw = Math.cos(rad);\n\t\n\t out[0] = ax * bw - az * by;\n\t out[1] = ay * bw + aw * by;\n\t out[2] = az * bw + ax * by;\n\t out[3] = aw * bw - ay * by;\n\t return out;\n\t};\n\t\n\t/**\n\t * Rotates a quaternion by the given angle about the Z axis\n\t *\n\t * @param {quat} out quat receiving operation result\n\t * @param {quat} a quat to rotate\n\t * @param {number} rad angle (in radians) to rotate\n\t * @returns {quat} out\n\t */\n\tquat.rotateZ = function (out, a, rad) {\n\t rad *= 0.5; \n\t\n\t var ax = a[0], ay = a[1], az = a[2], aw = a[3],\n\t bz = Math.sin(rad), bw = Math.cos(rad);\n\t\n\t out[0] = ax * bw + ay * bz;\n\t out[1] = ay * bw - ax * bz;\n\t out[2] = az * bw + aw * bz;\n\t out[3] = aw * bw - az * bz;\n\t return out;\n\t};\n\t\n\t/**\n\t * Calculates the W component of a quat from the X, Y, and Z components.\n\t * Assumes that quaternion is 1 unit in length.\n\t * Any existing W component will be ignored.\n\t *\n\t * @param {quat} out the receiving quaternion\n\t * @param {quat} a quat to calculate W component of\n\t * @returns {quat} out\n\t */\n\tquat.calculateW = function (out, a) {\n\t var x = a[0], y = a[1], z = a[2];\n\t\n\t out[0] = x;\n\t out[1] = y;\n\t out[2] = z;\n\t out[3] = Math.sqrt(Math.abs(1.0 - x * x - y * y - z * z));\n\t return out;\n\t};\n\t\n\t/**\n\t * Calculates the dot product of two quat's\n\t *\n\t * @param {quat} a the first operand\n\t * @param {quat} b the second operand\n\t * @returns {Number} dot product of a and b\n\t * @function\n\t */\n\tquat.dot = vec4.dot;\n\t\n\t/**\n\t * Performs a linear interpolation between two quat's\n\t *\n\t * @param {quat} out the receiving quaternion\n\t * @param {quat} a the first operand\n\t * @param {quat} b the second operand\n\t * @param {Number} t interpolation amount between the two inputs\n\t * @returns {quat} out\n\t * @function\n\t */\n\tquat.lerp = vec4.lerp;\n\t\n\t/**\n\t * Performs a spherical linear interpolation between two quat\n\t *\n\t * @param {quat} out the receiving quaternion\n\t * @param {quat} a the first operand\n\t * @param {quat} b the second operand\n\t * @param {Number} t interpolation amount between the two inputs\n\t * @returns {quat} out\n\t */\n\tquat.slerp = function (out, a, b, t) {\n\t // benchmarks:\n\t // http://jsperf.com/quaternion-slerp-implementations\n\t\n\t var ax = a[0], ay = a[1], az = a[2], aw = a[3],\n\t bx = b[0], by = b[1], bz = b[2], bw = b[3];\n\t\n\t var omega, cosom, sinom, scale0, scale1;\n\t\n\t // calc cosine\n\t cosom = ax * bx + ay * by + az * bz + aw * bw;\n\t // adjust signs (if necessary)\n\t if ( cosom < 0.0 ) {\n\t cosom = -cosom;\n\t bx = - bx;\n\t by = - by;\n\t bz = - bz;\n\t bw = - bw;\n\t }\n\t // calculate coefficients\n\t if ( (1.0 - cosom) > 0.000001 ) {\n\t // standard case (slerp)\n\t omega = Math.acos(cosom);\n\t sinom = Math.sin(omega);\n\t scale0 = Math.sin((1.0 - t) * omega) / sinom;\n\t scale1 = Math.sin(t * omega) / sinom;\n\t } else { \n\t // \"from\" and \"to\" quaternions are very close \n\t // ... so we can do a linear interpolation\n\t scale0 = 1.0 - t;\n\t scale1 = t;\n\t }\n\t // calculate final values\n\t out[0] = scale0 * ax + scale1 * bx;\n\t out[1] = scale0 * ay + scale1 * by;\n\t out[2] = scale0 * az + scale1 * bz;\n\t out[3] = scale0 * aw + scale1 * bw;\n\t \n\t return out;\n\t};\n\t\n\t/**\n\t * Performs a spherical linear interpolation with two control points\n\t *\n\t * @param {quat} out the receiving quaternion\n\t * @param {quat} a the first operand\n\t * @param {quat} b the second operand\n\t * @param {quat} c the third operand\n\t * @param {quat} d the fourth operand\n\t * @param {Number} t interpolation amount\n\t * @returns {quat} out\n\t */\n\tquat.sqlerp = (function () {\n\t var temp1 = quat.create();\n\t var temp2 = quat.create();\n\t \n\t return function (out, a, b, c, d, t) {\n\t quat.slerp(temp1, a, d, t);\n\t quat.slerp(temp2, b, c, t);\n\t quat.slerp(out, temp1, temp2, 2 * t * (1 - t));\n\t \n\t return out;\n\t };\n\t}());\n\t\n\t/**\n\t * Calculates the inverse of a quat\n\t *\n\t * @param {quat} out the receiving quaternion\n\t * @param {quat} a quat to calculate inverse of\n\t * @returns {quat} out\n\t */\n\tquat.invert = function(out, a) {\n\t var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3],\n\t dot = a0*a0 + a1*a1 + a2*a2 + a3*a3,\n\t invDot = dot ? 1.0/dot : 0;\n\t \n\t // TODO: Would be faster to return [0,0,0,0] immediately if dot == 0\n\t\n\t out[0] = -a0*invDot;\n\t out[1] = -a1*invDot;\n\t out[2] = -a2*invDot;\n\t out[3] = a3*invDot;\n\t return out;\n\t};\n\t\n\t/**\n\t * Calculates the conjugate of a quat\n\t * If the quaternion is normalized, this function is faster than quat.inverse and produces the same result.\n\t *\n\t * @param {quat} out the receiving quaternion\n\t * @param {quat} a quat to calculate conjugate of\n\t * @returns {quat} out\n\t */\n\tquat.conjugate = function (out, a) {\n\t out[0] = -a[0];\n\t out[1] = -a[1];\n\t out[2] = -a[2];\n\t out[3] = a[3];\n\t return out;\n\t};\n\t\n\t/**\n\t * Calculates the length of a quat\n\t *\n\t * @param {quat} a vector to calculate length of\n\t * @returns {Number} length of a\n\t * @function\n\t */\n\tquat.length = vec4.length;\n\t\n\t/**\n\t * Alias for {@link quat.length}\n\t * @function\n\t */\n\tquat.len = quat.length;\n\t\n\t/**\n\t * Calculates the squared length of a quat\n\t *\n\t * @param {quat} a vector to calculate squared length of\n\t * @returns {Number} squared length of a\n\t * @function\n\t */\n\tquat.squaredLength = vec4.squaredLength;\n\t\n\t/**\n\t * Alias for {@link quat.squaredLength}\n\t * @function\n\t */\n\tquat.sqrLen = quat.squaredLength;\n\t\n\t/**\n\t * Normalize a quat\n\t *\n\t * @param {quat} out the receiving quaternion\n\t * @param {quat} a quaternion to normalize\n\t * @returns {quat} out\n\t * @function\n\t */\n\tquat.normalize = vec4.normalize;\n\t\n\t/**\n\t * Creates a quaternion from the given 3x3 rotation matrix.\n\t *\n\t * NOTE: The resultant quaternion is not normalized, so you should be sure\n\t * to renormalize the quaternion yourself where necessary.\n\t *\n\t * @param {quat} out the receiving quaternion\n\t * @param {mat3} m rotation matrix\n\t * @returns {quat} out\n\t * @function\n\t */\n\tquat.fromMat3 = function(out, m) {\n\t // Algorithm in Ken Shoemake's article in 1987 SIGGRAPH course notes\n\t // article \"Quaternion Calculus and Fast Animation\".\n\t var fTrace = m[0] + m[4] + m[8];\n\t var fRoot;\n\t\n\t if ( fTrace > 0.0 ) {\n\t // |w| > 1/2, may as well choose w > 1/2\n\t fRoot = Math.sqrt(fTrace + 1.0); // 2w\n\t out[3] = 0.5 * fRoot;\n\t fRoot = 0.5/fRoot; // 1/(4w)\n\t out[0] = (m[5]-m[7])*fRoot;\n\t out[1] = (m[6]-m[2])*fRoot;\n\t out[2] = (m[1]-m[3])*fRoot;\n\t } else {\n\t // |w| <= 1/2\n\t var i = 0;\n\t if ( m[4] > m[0] )\n\t i = 1;\n\t if ( m[8] > m[i*3+i] )\n\t i = 2;\n\t var j = (i+1)%3;\n\t var k = (i+2)%3;\n\t \n\t fRoot = Math.sqrt(m[i*3+i]-m[j*3+j]-m[k*3+k] + 1.0);\n\t out[i] = 0.5 * fRoot;\n\t fRoot = 0.5 / fRoot;\n\t out[3] = (m[j*3+k] - m[k*3+j]) * fRoot;\n\t out[j] = (m[j*3+i] + m[i*3+j]) * fRoot;\n\t out[k] = (m[k*3+i] + m[i*3+k]) * fRoot;\n\t }\n\t \n\t return out;\n\t};\n\t\n\t/**\n\t * Returns a string representation of a quatenion\n\t *\n\t * @param {quat} vec vector to represent as a string\n\t * @returns {String} string representation of the vector\n\t */\n\tquat.str = function (a) {\n\t return 'quat(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' + a[3] + ')';\n\t};\n\t\n\tmodule.exports = quat;\n\n\n/***/ },\n/* 16 */\n/***/ function(module, exports, __webpack_require__) {\n\n\t/* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV.\n\t\n\tPermission is hereby granted, free of charge, to any person obtaining a copy\n\tof this software and associated documentation files (the \"Software\"), to deal\n\tin the Software without restriction, including without limitation the rights\n\tto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n\tcopies of the Software, and to permit persons to whom the Software is\n\tfurnished to do so, subject to the following conditions:\n\t\n\tThe above copyright notice and this permission notice shall be included in\n\tall copies or substantial portions of the Software.\n\t\n\tTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n\tIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n\tFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n\tAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n\tLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n\tOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n\tTHE SOFTWARE. */\n\t\n\tvar glMatrix = __webpack_require__(10);\n\t\n\t/**\n\t * @class 3 Dimensional Vector\n\t * @name vec3\n\t */\n\tvar vec3 = {};\n\t\n\t/**\n\t * Creates a new, empty vec3\n\t *\n\t * @returns {vec3} a new 3D vector\n\t */\n\tvec3.create = function() {\n\t var out = new glMatrix.ARRAY_TYPE(3);\n\t out[0] = 0;\n\t out[1] = 0;\n\t out[2] = 0;\n\t return out;\n\t};\n\t\n\t/**\n\t * Creates a new vec3 initialized with values from an existing vector\n\t *\n\t * @param {vec3} a vector to clone\n\t * @returns {vec3} a new 3D vector\n\t */\n\tvec3.clone = function(a) {\n\t var out = new glMatrix.ARRAY_TYPE(3);\n\t out[0] = a[0];\n\t out[1] = a[1];\n\t out[2] = a[2];\n\t return out;\n\t};\n\t\n\t/**\n\t * Creates a new vec3 initialized with the given values\n\t *\n\t * @param {Number} x X component\n\t * @param {Number} y Y component\n\t * @param {Number} z Z component\n\t * @returns {vec3} a new 3D vector\n\t */\n\tvec3.fromValues = function(x, y, z) {\n\t var out = new glMatrix.ARRAY_TYPE(3);\n\t out[0] = x;\n\t out[1] = y;\n\t out[2] = z;\n\t return out;\n\t};\n\t\n\t/**\n\t * Copy the values from one vec3 to another\n\t *\n\t * @param {vec3} out the receiving vector\n\t * @param {vec3} a the source vector\n\t * @returns {vec3} out\n\t */\n\tvec3.copy = function(out, a) {\n\t out[0] = a[0];\n\t out[1] = a[1];\n\t out[2] = a[2];\n\t return out;\n\t};\n\t\n\t/**\n\t * Set the components of a vec3 to the given values\n\t *\n\t * @param {vec3} out the receiving vector\n\t * @param {Number} x X component\n\t * @param {Number} y Y component\n\t * @param {Number} z Z component\n\t * @returns {vec3} out\n\t */\n\tvec3.set = function(out, x, y, z) {\n\t out[0] = x;\n\t out[1] = y;\n\t out[2] = z;\n\t return out;\n\t};\n\t\n\t/**\n\t * Adds two vec3's\n\t *\n\t * @param {vec3} out the receiving vector\n\t * @param {vec3} a the first operand\n\t * @param {vec3} b the second operand\n\t * @returns {vec3} out\n\t */\n\tvec3.add = function(out, a, b) {\n\t out[0] = a[0] + b[0];\n\t out[1] = a[1] + b[1];\n\t out[2] = a[2] + b[2];\n\t return out;\n\t};\n\t\n\t/**\n\t * Subtracts vector b from vector a\n\t *\n\t * @param {vec3} out the receiving vector\n\t * @param {vec3} a the first operand\n\t * @param {vec3} b the second operand\n\t * @returns {vec3} out\n\t */\n\tvec3.subtract = function(out, a, b) {\n\t out[0] = a[0] - b[0];\n\t out[1] = a[1] - b[1];\n\t out[2] = a[2] - b[2];\n\t return out;\n\t};\n\t\n\t/**\n\t * Alias for {@link vec3.subtract}\n\t * @function\n\t */\n\tvec3.sub = vec3.subtract;\n\t\n\t/**\n\t * Multiplies two vec3's\n\t *\n\t * @param {vec3} out the receiving vector\n\t * @param {vec3} a the first operand\n\t * @param {vec3} b the second operand\n\t * @returns {vec3} out\n\t */\n\tvec3.multiply = function(out, a, b) {\n\t out[0] = a[0] * b[0];\n\t out[1] = a[1] * b[1];\n\t out[2] = a[2] * b[2];\n\t return out;\n\t};\n\t\n\t/**\n\t * Alias for {@link vec3.multiply}\n\t * @function\n\t */\n\tvec3.mul = vec3.multiply;\n\t\n\t/**\n\t * Divides two vec3's\n\t *\n\t * @param {vec3} out the receiving vector\n\t * @param {vec3} a the first operand\n\t * @param {vec3} b the second operand\n\t * @returns {vec3} out\n\t */\n\tvec3.divide = function(out, a, b) {\n\t out[0] = a[0] / b[0];\n\t out[1] = a[1] / b[1];\n\t out[2] = a[2] / b[2];\n\t return out;\n\t};\n\t\n\t/**\n\t * Alias for {@link vec3.divide}\n\t * @function\n\t */\n\tvec3.div = vec3.divide;\n\t\n\t/**\n\t * Returns the minimum of two vec3's\n\t *\n\t * @param {vec3} out the receiving vector\n\t * @param {vec3} a the first operand\n\t * @param {vec3} b the second operand\n\t * @returns {vec3} out\n\t */\n\tvec3.min = function(out, a, b) {\n\t out[0] = Math.min(a[0], b[0]);\n\t out[1] = Math.min(a[1], b[1]);\n\t out[2] = Math.min(a[2], b[2]);\n\t return out;\n\t};\n\t\n\t/**\n\t * Returns the maximum of two vec3's\n\t *\n\t * @param {vec3} out the receiving vector\n\t * @param {vec3} a the first operand\n\t * @param {vec3} b the second operand\n\t * @returns {vec3} out\n\t */\n\tvec3.max = function(out, a, b) {\n\t out[0] = Math.max(a[0], b[0]);\n\t out[1] = Math.max(a[1], b[1]);\n\t out[2] = Math.max(a[2], b[2]);\n\t return out;\n\t};\n\t\n\t/**\n\t * Scales a vec3 by a scalar number\n\t *\n\t * @param {vec3} out the receiving vector\n\t * @param {vec3} a the vector to scale\n\t * @param {Number} b amount to scale the vector by\n\t * @returns {vec3} out\n\t */\n\tvec3.scale = function(out, a, b) {\n\t out[0] = a[0] * b;\n\t out[1] = a[1] * b;\n\t out[2] = a[2] * b;\n\t return out;\n\t};\n\t\n\t/**\n\t * Adds two vec3's after scaling the second operand by a scalar value\n\t *\n\t * @param {vec3} out the receiving vector\n\t * @param {vec3} a the first operand\n\t * @param {vec3} b the second operand\n\t * @param {Number} scale the amount to scale b by before adding\n\t * @returns {vec3} out\n\t */\n\tvec3.scaleAndAdd = function(out, a, b, scale) {\n\t out[0] = a[0] + (b[0] * scale);\n\t out[1] = a[1] + (b[1] * scale);\n\t out[2] = a[2] + (b[2] * scale);\n\t return out;\n\t};\n\t\n\t/**\n\t * Calculates the euclidian distance between two vec3's\n\t *\n\t * @param {vec3} a the first operand\n\t * @param {vec3} b the second operand\n\t * @returns {Number} distance between a and b\n\t */\n\tvec3.distance = function(a, b) {\n\t var x = b[0] - a[0],\n\t y = b[1] - a[1],\n\t z = b[2] - a[2];\n\t return Math.sqrt(x*x + y*y + z*z);\n\t};\n\t\n\t/**\n\t * Alias for {@link vec3.distance}\n\t * @function\n\t */\n\tvec3.dist = vec3.distance;\n\t\n\t/**\n\t * Calculates the squared euclidian distance between two vec3's\n\t *\n\t * @param {vec3} a the first operand\n\t * @param {vec3} b the second operand\n\t * @returns {Number} squared distance between a and b\n\t */\n\tvec3.squaredDistance = function(a, b) {\n\t var x = b[0] - a[0],\n\t y = b[1] - a[1],\n\t z = b[2] - a[2];\n\t return x*x + y*y + z*z;\n\t};\n\t\n\t/**\n\t * Alias for {@link vec3.squaredDistance}\n\t * @function\n\t */\n\tvec3.sqrDist = vec3.squaredDistance;\n\t\n\t/**\n\t * Calculates the length of a vec3\n\t *\n\t * @param {vec3} a vector to calculate length of\n\t * @returns {Number} length of a\n\t */\n\tvec3.length = function (a) {\n\t var x = a[0],\n\t y = a[1],\n\t z = a[2];\n\t return Math.sqrt(x*x + y*y + z*z);\n\t};\n\t\n\t/**\n\t * Alias for {@link vec3.length}\n\t * @function\n\t */\n\tvec3.len = vec3.length;\n\t\n\t/**\n\t * Calculates the squared length of a vec3\n\t *\n\t * @param {vec3} a vector to calculate squared length of\n\t * @returns {Number} squared length of a\n\t */\n\tvec3.squaredLength = function (a) {\n\t var x = a[0],\n\t y = a[1],\n\t z = a[2];\n\t return x*x + y*y + z*z;\n\t};\n\t\n\t/**\n\t * Alias for {@link vec3.squaredLength}\n\t * @function\n\t */\n\tvec3.sqrLen = vec3.squaredLength;\n\t\n\t/**\n\t * Negates the components of a vec3\n\t *\n\t * @param {vec3} out the receiving vector\n\t * @param {vec3} a vector to negate\n\t * @returns {vec3} out\n\t */\n\tvec3.negate = function(out, a) {\n\t out[0] = -a[0];\n\t out[1] = -a[1];\n\t out[2] = -a[2];\n\t return out;\n\t};\n\t\n\t/**\n\t * Returns the inverse of the components of a vec3\n\t *\n\t * @param {vec3} out the receiving vector\n\t * @param {vec3} a vector to invert\n\t * @returns {vec3} out\n\t */\n\tvec3.inverse = function(out, a) {\n\t out[0] = 1.0 / a[0];\n\t out[1] = 1.0 / a[1];\n\t out[2] = 1.0 / a[2];\n\t return out;\n\t};\n\t\n\t/**\n\t * Normalize a vec3\n\t *\n\t * @param {vec3} out the receiving vector\n\t * @param {vec3} a vector to normalize\n\t * @returns {vec3} out\n\t */\n\tvec3.normalize = function(out, a) {\n\t var x = a[0],\n\t y = a[1],\n\t z = a[2];\n\t var len = x*x + y*y + z*z;\n\t if (len > 0) {\n\t //TODO: evaluate use of glm_invsqrt here?\n\t len = 1 / Math.sqrt(len);\n\t out[0] = a[0] * len;\n\t out[1] = a[1] * len;\n\t out[2] = a[2] * len;\n\t }\n\t return out;\n\t};\n\t\n\t/**\n\t * Calculates the dot product of two vec3's\n\t *\n\t * @param {vec3} a the first operand\n\t * @param {vec3} b the second operand\n\t * @returns {Number} dot product of a and b\n\t */\n\tvec3.dot = function (a, b) {\n\t return a[0] * b[0] + a[1] * b[1] + a[2] * b[2];\n\t};\n\t\n\t/**\n\t * Computes the cross product of two vec3's\n\t *\n\t * @param {vec3} out the receiving vector\n\t * @param {vec3} a the first operand\n\t * @param {vec3} b the second operand\n\t * @returns {vec3} out\n\t */\n\tvec3.cross = function(out, a, b) {\n\t var ax = a[0], ay = a[1], az = a[2],\n\t bx = b[0], by = b[1], bz = b[2];\n\t\n\t out[0] = ay * bz - az * by;\n\t out[1] = az * bx - ax * bz;\n\t out[2] = ax * by - ay * bx;\n\t return out;\n\t};\n\t\n\t/**\n\t * Performs a linear interpolation between two vec3's\n\t *\n\t * @param {vec3} out the receiving vector\n\t * @param {vec3} a the first operand\n\t * @param {vec3} b the second operand\n\t * @param {Number} t interpolation amount between the two inputs\n\t * @returns {vec3} out\n\t */\n\tvec3.lerp = function (out, a, b, t) {\n\t var ax = a[0],\n\t ay = a[1],\n\t az = a[2];\n\t out[0] = ax + t * (b[0] - ax);\n\t out[1] = ay + t * (b[1] - ay);\n\t out[2] = az + t * (b[2] - az);\n\t return out;\n\t};\n\t\n\t/**\n\t * Performs a hermite interpolation with two control points\n\t *\n\t * @param {vec3} out the receiving vector\n\t * @param {vec3} a the first operand\n\t * @param {vec3} b the second operand\n\t * @param {vec3} c the third operand\n\t * @param {vec3} d the fourth operand\n\t * @param {Number} t interpolation amount between the two inputs\n\t * @returns {vec3} out\n\t */\n\tvec3.hermite = function (out, a, b, c, d, t) {\n\t var factorTimes2 = t * t,\n\t factor1 = factorTimes2 * (2 * t - 3) + 1,\n\t factor2 = factorTimes2 * (t - 2) + t,\n\t factor3 = factorTimes2 * (t - 1),\n\t factor4 = factorTimes2 * (3 - 2 * t);\n\t \n\t out[0] = a[0] * factor1 + b[0] * factor2 + c[0] * factor3 + d[0] * factor4;\n\t out[1] = a[1] * factor1 + b[1] * factor2 + c[1] * factor3 + d[1] * factor4;\n\t out[2] = a[2] * factor1 + b[2] * factor2 + c[2] * factor3 + d[2] * factor4;\n\t \n\t return out;\n\t};\n\t\n\t/**\n\t * Performs a bezier interpolation with two control points\n\t *\n\t * @param {vec3} out the receiving vector\n\t * @param {vec3} a the first operand\n\t * @param {vec3} b the second operand\n\t * @param {vec3} c the third operand\n\t * @param {vec3} d the fourth operand\n\t * @param {Number} t interpolation amount between the two inputs\n\t * @returns {vec3} out\n\t */\n\tvec3.bezier = function (out, a, b, c, d, t) {\n\t var inverseFactor = 1 - t,\n\t inverseFactorTimesTwo = inverseFactor * inverseFactor,\n\t factorTimes2 = t * t,\n\t factor1 = inverseFactorTimesTwo * inverseFactor,\n\t factor2 = 3 * t * inverseFactorTimesTwo,\n\t factor3 = 3 * factorTimes2 * inverseFactor,\n\t factor4 = factorTimes2 * t;\n\t \n\t out[0] = a[0] * factor1 + b[0] * factor2 + c[0] * factor3 + d[0] * factor4;\n\t out[1] = a[1] * factor1 + b[1] * factor2 + c[1] * factor3 + d[1] * factor4;\n\t out[2] = a[2] * factor1 + b[2] * factor2 + c[2] * factor3 + d[2] * factor4;\n\t \n\t return out;\n\t};\n\t\n\t/**\n\t * Generates a random vector with the given scale\n\t *\n\t * @param {vec3} out the receiving vector\n\t * @param {Number} [scale] Length of the resulting vector. If ommitted, a unit vector will be returned\n\t * @returns {vec3} out\n\t */\n\tvec3.random = function (out, scale) {\n\t scale = scale || 1.0;\n\t\n\t var r = glMatrix.RANDOM() * 2.0 * Math.PI;\n\t var z = (glMatrix.RANDOM() * 2.0) - 1.0;\n\t var zScale = Math.sqrt(1.0-z*z) * scale;\n\t\n\t out[0] = Math.cos(r) * zScale;\n\t out[1] = Math.sin(r) * zScale;\n\t out[2] = z * scale;\n\t return out;\n\t};\n\t\n\t/**\n\t * Transforms the vec3 with a mat4.\n\t * 4th vector component is implicitly '1'\n\t *\n\t * @param {vec3} out the receiving vector\n\t * @param {vec3} a the vector to transform\n\t * @param {mat4} m matrix to transform with\n\t * @returns {vec3} out\n\t */\n\tvec3.transformMat4 = function(out, a, m) {\n\t var x = a[0], y = a[1], z = a[2],\n\t w = m[3] * x + m[7] * y + m[11] * z + m[15];\n\t w = w || 1.0;\n\t out[0] = (m[0] * x + m[4] * y + m[8] * z + m[12]) / w;\n\t out[1] = (m[1] * x + m[5] * y + m[9] * z + m[13]) / w;\n\t out[2] = (m[2] * x + m[6] * y + m[10] * z + m[14]) / w;\n\t return out;\n\t};\n\t\n\t/**\n\t * Transforms the vec3 with a mat3.\n\t *\n\t * @param {vec3} out the receiving vector\n\t * @param {vec3} a the vector to transform\n\t * @param {mat4} m the 3x3 matrix to transform with\n\t * @returns {vec3} out\n\t */\n\tvec3.transformMat3 = function(out, a, m) {\n\t var x = a[0], y = a[1], z = a[2];\n\t out[0] = x * m[0] + y * m[3] + z * m[6];\n\t out[1] = x * m[1] + y * m[4] + z * m[7];\n\t out[2] = x * m[2] + y * m[5] + z * m[8];\n\t return out;\n\t};\n\t\n\t/**\n\t * Transforms the vec3 with a quat\n\t *\n\t * @param {vec3} out the receiving vector\n\t * @param {vec3} a the vector to transform\n\t * @param {quat} q quaternion to transform with\n\t * @returns {vec3} out\n\t */\n\tvec3.transformQuat = function(out, a, q) {\n\t // benchmarks: http://jsperf.com/quaternion-transform-vec3-implementations\n\t\n\t var x = a[0], y = a[1], z = a[2],\n\t qx = q[0], qy = q[1], qz = q[2], qw = q[3],\n\t\n\t // calculate quat * vec\n\t ix = qw * x + qy * z - qz * y,\n\t iy = qw * y + qz * x - qx * z,\n\t iz = qw * z + qx * y - qy * x,\n\t iw = -qx * x - qy * y - qz * z;\n\t\n\t // calculate result * inverse quat\n\t out[0] = ix * qw + iw * -qx + iy * -qz - iz * -qy;\n\t out[1] = iy * qw + iw * -qy + iz * -qx - ix * -qz;\n\t out[2] = iz * qw + iw * -qz + ix * -qy - iy * -qx;\n\t return out;\n\t};\n\t\n\t/**\n\t * Rotate a 3D vector around the x-axis\n\t * @param {vec3} out The receiving vec3\n\t * @param {vec3} a The vec3 point to rotate\n\t * @param {vec3} b The origin of the rotation\n\t * @param {Number} c The angle of rotation\n\t * @returns {vec3} out\n\t */\n\tvec3.rotateX = function(out, a, b, c){\n\t var p = [], r=[];\n\t\t //Translate point to the origin\n\t\t p[0] = a[0] - b[0];\n\t\t p[1] = a[1] - b[1];\n\t \tp[2] = a[2] - b[2];\n\t\n\t\t //perform rotation\n\t\t r[0] = p[0];\n\t\t r[1] = p[1]*Math.cos(c) - p[2]*Math.sin(c);\n\t\t r[2] = p[1]*Math.sin(c) + p[2]*Math.cos(c);\n\t\n\t\t //translate to correct position\n\t\t out[0] = r[0] + b[0];\n\t\t out[1] = r[1] + b[1];\n\t\t out[2] = r[2] + b[2];\n\t\n\t \treturn out;\n\t};\n\t\n\t/**\n\t * Rotate a 3D vector around the y-axis\n\t * @param {vec3} out The receiving vec3\n\t * @param {vec3} a The vec3 point to rotate\n\t * @param {vec3} b The origin of the rotation\n\t * @param {Number} c The angle of rotation\n\t * @returns {vec3} out\n\t */\n\tvec3.rotateY = function(out, a, b, c){\n\t \tvar p = [], r=[];\n\t \t//Translate point to the origin\n\t \tp[0] = a[0] - b[0];\n\t \tp[1] = a[1] - b[1];\n\t \tp[2] = a[2] - b[2];\n\t \n\t \t//perform rotation\n\t \tr[0] = p[2]*Math.sin(c) + p[0]*Math.cos(c);\n\t \tr[1] = p[1];\n\t \tr[2] = p[2]*Math.cos(c) - p[0]*Math.sin(c);\n\t \n\t \t//translate to correct position\n\t \tout[0] = r[0] + b[0];\n\t \tout[1] = r[1] + b[1];\n\t \tout[2] = r[2] + b[2];\n\t \n\t \treturn out;\n\t};\n\t\n\t/**\n\t * Rotate a 3D vector around the z-axis\n\t * @param {vec3} out The receiving vec3\n\t * @param {vec3} a The vec3 point to rotate\n\t * @param {vec3} b The origin of the rotation\n\t * @param {Number} c The angle of rotation\n\t * @returns {vec3} out\n\t */\n\tvec3.rotateZ = function(out, a, b, c){\n\t \tvar p = [], r=[];\n\t \t//Translate point to the origin\n\t \tp[0] = a[0] - b[0];\n\t \tp[1] = a[1] - b[1];\n\t \tp[2] = a[2] - b[2];\n\t \n\t \t//perform rotation\n\t \tr[0] = p[0]*Math.cos(c) - p[1]*Math.sin(c);\n\t \tr[1] = p[0]*Math.sin(c) + p[1]*Math.cos(c);\n\t \tr[2] = p[2];\n\t \n\t \t//translate to correct position\n\t \tout[0] = r[0] + b[0];\n\t \tout[1] = r[1] + b[1];\n\t \tout[2] = r[2] + b[2];\n\t \n\t \treturn out;\n\t};\n\t\n\t/**\n\t * Perform some operation over an array of vec3s.\n\t *\n\t * @param {Array} a the array of vectors to iterate over\n\t * @param {Number} stride Number of elements between the start of each vec3. If 0 assumes tightly packed\n\t * @param {Number} offset Number of elements to skip at the beginning of the array\n\t * @param {Number} count Number of vec3s to iterate over. If 0 iterates over entire array\n\t * @param {Function} fn Function to call for each vector in the array\n\t * @param {Object} [arg] additional argument to pass to fn\n\t * @returns {Array} a\n\t * @function\n\t */\n\tvec3.forEach = (function() {\n\t var vec = vec3.create();\n\t\n\t return function(a, stride, offset, count, fn, arg) {\n\t var i, l;\n\t if(!stride) {\n\t stride = 3;\n\t }\n\t\n\t if(!offset) {\n\t offset = 0;\n\t }\n\t \n\t if(count) {\n\t l = Math.min((count * stride) + offset, a.length);\n\t } else {\n\t l = a.length;\n\t }\n\t\n\t for(i = offset; i < l; i += stride) {\n\t vec[0] = a[i]; vec[1] = a[i+1]; vec[2] = a[i+2];\n\t fn(vec, vec, arg);\n\t a[i] = vec[0]; a[i+1] = vec[1]; a[i+2] = vec[2];\n\t }\n\t \n\t return a;\n\t };\n\t})();\n\t\n\t/**\n\t * Get the angle between two 3D vectors\n\t * @param {vec3} a The first operand\n\t * @param {vec3} b The second operand\n\t * @returns {Number} The angle in radians\n\t */\n\tvec3.angle = function(a, b) {\n\t \n\t var tempA = vec3.fromValues(a[0], a[1], a[2]);\n\t var tempB = vec3.fromValues(b[0], b[1], b[2]);\n\t \n\t vec3.normalize(tempA, tempA);\n\t vec3.normalize(tempB, tempB);\n\t \n\t var cosine = vec3.dot(tempA, tempB);\n\t\n\t if(cosine > 1.0){\n\t return 0;\n\t } else {\n\t return Math.acos(cosine);\n\t } \n\t};\n\t\n\t/**\n\t * Returns a string representation of a vector\n\t *\n\t * @param {vec3} vec vector to represent as a string\n\t * @returns {String} string representation of the vector\n\t */\n\tvec3.str = function (a) {\n\t return 'vec3(' + a[0] + ', ' + a[1] + ', ' + a[2] + ')';\n\t};\n\t\n\tmodule.exports = vec3;\n\n\n/***/ },\n/* 17 */\n/***/ function(module, exports, __webpack_require__) {\n\n\t/* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV.\n\t\n\tPermission is hereby granted, free of charge, to any person obtaining a copy\n\tof this software and associated documentation files (the \"Software\"), to deal\n\tin the Software without restriction, including without limitation the rights\n\tto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n\tcopies of the Software, and to permit persons to whom the Software is\n\tfurnished to do so, subject to the following conditions:\n\t\n\tThe above copyright notice and this permission notice shall be included in\n\tall copies or substantial portions of the Software.\n\t\n\tTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n\tIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n\tFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n\tAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n\tLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n\tOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n\tTHE SOFTWARE. */\n\t\n\tvar glMatrix = __webpack_require__(10);\n\t\n\t/**\n\t * @class 4 Dimensional Vector\n\t * @name vec4\n\t */\n\tvar vec4 = {};\n\t\n\t/**\n\t * Creates a new, empty vec4\n\t *\n\t * @returns {vec4} a new 4D vector\n\t */\n\tvec4.create = function() {\n\t var out = new glMatrix.ARRAY_TYPE(4);\n\t out[0] = 0;\n\t out[1] = 0;\n\t out[2] = 0;\n\t out[3] = 0;\n\t return out;\n\t};\n\t\n\t/**\n\t * Creates a new vec4 initialized with values from an existing vector\n\t *\n\t * @param {vec4} a vector to clone\n\t * @returns {vec4} a new 4D vector\n\t */\n\tvec4.clone = function(a) {\n\t var out = new glMatrix.ARRAY_TYPE(4);\n\t out[0] = a[0];\n\t out[1] = a[1];\n\t out[2] = a[2];\n\t out[3] = a[3];\n\t return out;\n\t};\n\t\n\t/**\n\t * Creates a new vec4 initialized with the given values\n\t *\n\t * @param {Number} x X component\n\t * @param {Number} y Y component\n\t * @param {Number} z Z component\n\t * @param {Number} w W component\n\t * @returns {vec4} a new 4D vector\n\t */\n\tvec4.fromValues = function(x, y, z, w) {\n\t var out = new glMatrix.ARRAY_TYPE(4);\n\t out[0] = x;\n\t out[1] = y;\n\t out[2] = z;\n\t out[3] = w;\n\t return out;\n\t};\n\t\n\t/**\n\t * Copy the values from one vec4 to another\n\t *\n\t * @param {vec4} out the receiving vector\n\t * @param {vec4} a the source vector\n\t * @returns {vec4} out\n\t */\n\tvec4.copy = function(out, a) {\n\t out[0] = a[0];\n\t out[1] = a[1];\n\t out[2] = a[2];\n\t out[3] = a[3];\n\t return out;\n\t};\n\t\n\t/**\n\t * Set the components of a vec4 to the given values\n\t *\n\t * @param {vec4} out the receiving vector\n\t * @param {Number} x X component\n\t * @param {Number} y Y component\n\t * @param {Number} z Z component\n\t * @param {Number} w W component\n\t * @returns {vec4} out\n\t */\n\tvec4.set = function(out, x, y, z, w) {\n\t out[0] = x;\n\t out[1] = y;\n\t out[2] = z;\n\t out[3] = w;\n\t return out;\n\t};\n\t\n\t/**\n\t * Adds two vec4's\n\t *\n\t * @param {vec4} out the receiving vector\n\t * @param {vec4} a the first operand\n\t * @param {vec4} b the second operand\n\t * @returns {vec4} out\n\t */\n\tvec4.add = function(out, a, b) {\n\t out[0] = a[0] + b[0];\n\t out[1] = a[1] + b[1];\n\t out[2] = a[2] + b[2];\n\t out[3] = a[3] + b[3];\n\t return out;\n\t};\n\t\n\t/**\n\t * Subtracts vector b from vector a\n\t *\n\t * @param {vec4} out the receiving vector\n\t * @param {vec4} a the first operand\n\t * @param {vec4} b the second operand\n\t * @returns {vec4} out\n\t */\n\tvec4.subtract = function(out, a, b) {\n\t out[0] = a[0] - b[0];\n\t out[1] = a[1] - b[1];\n\t out[2] = a[2] - b[2];\n\t out[3] = a[3] - b[3];\n\t return out;\n\t};\n\t\n\t/**\n\t * Alias for {@link vec4.subtract}\n\t * @function\n\t */\n\tvec4.sub = vec4.subtract;\n\t\n\t/**\n\t * Multiplies two vec4's\n\t *\n\t * @param {vec4} out the receiving vector\n\t * @param {vec4} a the first operand\n\t * @param {vec4} b the second operand\n\t * @returns {vec4} out\n\t */\n\tvec4.multiply = function(out, a, b) {\n\t out[0] = a[0] * b[0];\n\t out[1] = a[1] * b[1];\n\t out[2] = a[2] * b[2];\n\t out[3] = a[3] * b[3];\n\t return out;\n\t};\n\t\n\t/**\n\t * Alias for {@link vec4.multiply}\n\t * @function\n\t */\n\tvec4.mul = vec4.multiply;\n\t\n\t/**\n\t * Divides two vec4's\n\t *\n\t * @param {vec4} out the receiving vector\n\t * @param {vec4} a the first operand\n\t * @param {vec4} b the second operand\n\t * @returns {vec4} out\n\t */\n\tvec4.divide = function(out, a, b) {\n\t out[0] = a[0] / b[0];\n\t out[1] = a[1] / b[1];\n\t out[2] = a[2] / b[2];\n\t out[3] = a[3] / b[3];\n\t return out;\n\t};\n\t\n\t/**\n\t * Alias for {@link vec4.divide}\n\t * @function\n\t */\n\tvec4.div = vec4.divide;\n\t\n\t/**\n\t * Returns the minimum of two vec4's\n\t *\n\t * @param {vec4} out the receiving vector\n\t * @param {vec4} a the first operand\n\t * @param {vec4} b the second operand\n\t * @returns {vec4} out\n\t */\n\tvec4.min = function(out, a, b) {\n\t out[0] = Math.min(a[0], b[0]);\n\t out[1] = Math.min(a[1], b[1]);\n\t out[2] = Math.min(a[2], b[2]);\n\t out[3] = Math.min(a[3], b[3]);\n\t return out;\n\t};\n\t\n\t/**\n\t * Returns the maximum of two vec4's\n\t *\n\t * @param {vec4} out the receiving vector\n\t * @param {vec4} a the first operand\n\t * @param {vec4} b the second operand\n\t * @returns {vec4} out\n\t */\n\tvec4.max = function(out, a, b) {\n\t out[0] = Math.max(a[0], b[0]);\n\t out[1] = Math.max(a[1], b[1]);\n\t out[2] = Math.max(a[2], b[2]);\n\t out[3] = Math.max(a[3], b[3]);\n\t return out;\n\t};\n\t\n\t/**\n\t * Scales a vec4 by a scalar number\n\t *\n\t * @param {vec4} out the receiving vector\n\t * @param {vec4} a the vector to scale\n\t * @param {Number} b amount to scale the vector by\n\t * @returns {vec4} out\n\t */\n\tvec4.scale = function(out, a, b) {\n\t out[0] = a[0] * b;\n\t out[1] = a[1] * b;\n\t out[2] = a[2] * b;\n\t out[3] = a[3] * b;\n\t return out;\n\t};\n\t\n\t/**\n\t * Adds two vec4's after scaling the second operand by a scalar value\n\t *\n\t * @param {vec4} out the receiving vector\n\t * @param {vec4} a the first operand\n\t * @param {vec4} b the second operand\n\t * @param {Number} scale the amount to scale b by before adding\n\t * @returns {vec4} out\n\t */\n\tvec4.scaleAndAdd = function(out, a, b, scale) {\n\t out[0] = a[0] + (b[0] * scale);\n\t out[1] = a[1] + (b[1] * scale);\n\t out[2] = a[2] + (b[2] * scale);\n\t out[3] = a[3] + (b[3] * scale);\n\t return out;\n\t};\n\t\n\t/**\n\t * Calculates the euclidian distance between two vec4's\n\t *\n\t * @param {vec4} a the first operand\n\t * @param {vec4} b the second operand\n\t * @returns {Number} distance between a and b\n\t */\n\tvec4.distance = function(a, b) {\n\t var x = b[0] - a[0],\n\t y = b[1] - a[1],\n\t z = b[2] - a[2],\n\t w = b[3] - a[3];\n\t return Math.sqrt(x*x + y*y + z*z + w*w);\n\t};\n\t\n\t/**\n\t * Alias for {@link vec4.distance}\n\t * @function\n\t */\n\tvec4.dist = vec4.distance;\n\t\n\t/**\n\t * Calculates the squared euclidian distance between two vec4's\n\t *\n\t * @param {vec4} a the first operand\n\t * @param {vec4} b the second operand\n\t * @returns {Number} squared distance between a and b\n\t */\n\tvec4.squaredDistance = function(a, b) {\n\t var x = b[0] - a[0],\n\t y = b[1] - a[1],\n\t z = b[2] - a[2],\n\t w = b[3] - a[3];\n\t return x*x + y*y + z*z + w*w;\n\t};\n\t\n\t/**\n\t * Alias for {@link vec4.squaredDistance}\n\t * @function\n\t */\n\tvec4.sqrDist = vec4.squaredDistance;\n\t\n\t/**\n\t * Calculates the length of a vec4\n\t *\n\t * @param {vec4} a vector to calculate length of\n\t * @returns {Number} length of a\n\t */\n\tvec4.length = function (a) {\n\t var x = a[0],\n\t y = a[1],\n\t z = a[2],\n\t w = a[3];\n\t return Math.sqrt(x*x + y*y + z*z + w*w);\n\t};\n\t\n\t/**\n\t * Alias for {@link vec4.length}\n\t * @function\n\t */\n\tvec4.len = vec4.length;\n\t\n\t/**\n\t * Calculates the squared length of a vec4\n\t *\n\t * @param {vec4} a vector to calculate squared length of\n\t * @returns {Number} squared length of a\n\t */\n\tvec4.squaredLength = function (a) {\n\t var x = a[0],\n\t y = a[1],\n\t z = a[2],\n\t w = a[3];\n\t return x*x + y*y + z*z + w*w;\n\t};\n\t\n\t/**\n\t * Alias for {@link vec4.squaredLength}\n\t * @function\n\t */\n\tvec4.sqrLen = vec4.squaredLength;\n\t\n\t/**\n\t * Negates the components of a vec4\n\t *\n\t * @param {vec4} out the receiving vector\n\t * @param {vec4} a vector to negate\n\t * @returns {vec4} out\n\t */\n\tvec4.negate = function(out, a) {\n\t out[0] = -a[0];\n\t out[1] = -a[1];\n\t out[2] = -a[2];\n\t out[3] = -a[3];\n\t return out;\n\t};\n\t\n\t/**\n\t * Returns the inverse of the components of a vec4\n\t *\n\t * @param {vec4} out the receiving vector\n\t * @param {vec4} a vector to invert\n\t * @returns {vec4} out\n\t */\n\tvec4.inverse = function(out, a) {\n\t out[0] = 1.0 / a[0];\n\t out[1] = 1.0 / a[1];\n\t out[2] = 1.0 / a[2];\n\t out[3] = 1.0 / a[3];\n\t return out;\n\t};\n\t\n\t/**\n\t * Normalize a vec4\n\t *\n\t * @param {vec4} out the receiving vector\n\t * @param {vec4} a vector to normalize\n\t * @returns {vec4} out\n\t */\n\tvec4.normalize = function(out, a) {\n\t var x = a[0],\n\t y = a[1],\n\t z = a[2],\n\t w = a[3];\n\t var len = x*x + y*y + z*z + w*w;\n\t if (len > 0) {\n\t len = 1 / Math.sqrt(len);\n\t out[0] = x * len;\n\t out[1] = y * len;\n\t out[2] = z * len;\n\t out[3] = w * len;\n\t }\n\t return out;\n\t};\n\t\n\t/**\n\t * Calculates the dot product of two vec4's\n\t *\n\t * @param {vec4} a the first operand\n\t * @param {vec4} b the second operand\n\t * @returns {Number} dot product of a and b\n\t */\n\tvec4.dot = function (a, b) {\n\t return a[0] * b[0] + a[1] * b[1] + a[2] * b[2] + a[3] * b[3];\n\t};\n\t\n\t/**\n\t * Performs a linear interpolation between two vec4's\n\t *\n\t * @param {vec4} out the receiving vector\n\t * @param {vec4} a the first operand\n\t * @param {vec4} b the second operand\n\t * @param {Number} t interpolation amount between the two inputs\n\t * @returns {vec4} out\n\t */\n\tvec4.lerp = function (out, a, b, t) {\n\t var ax = a[0],\n\t ay = a[1],\n\t az = a[2],\n\t aw = a[3];\n\t out[0] = ax + t * (b[0] - ax);\n\t out[1] = ay + t * (b[1] - ay);\n\t out[2] = az + t * (b[2] - az);\n\t out[3] = aw + t * (b[3] - aw);\n\t return out;\n\t};\n\t\n\t/**\n\t * Generates a random vector with the given scale\n\t *\n\t * @param {vec4} out the receiving vector\n\t * @param {Number} [scale] Length of the resulting vector. If ommitted, a unit vector will be returned\n\t * @returns {vec4} out\n\t */\n\tvec4.random = function (out, scale) {\n\t scale = scale || 1.0;\n\t\n\t //TODO: This is a pretty awful way of doing this. Find something better.\n\t out[0] = glMatrix.RANDOM();\n\t out[1] = glMatrix.RANDOM();\n\t out[2] = glMatrix.RANDOM();\n\t out[3] = glMatrix.RANDOM();\n\t vec4.normalize(out, out);\n\t vec4.scale(out, out, scale);\n\t return out;\n\t};\n\t\n\t/**\n\t * Transforms the vec4 with a mat4.\n\t *\n\t * @param {vec4} out the receiving vector\n\t * @param {vec4} a the vector to transform\n\t * @param {mat4} m matrix to transform with\n\t * @returns {vec4} out\n\t */\n\tvec4.transformMat4 = function(out, a, m) {\n\t var x = a[0], y = a[1], z = a[2], w = a[3];\n\t out[0] = m[0] * x + m[4] * y + m[8] * z + m[12] * w;\n\t out[1] = m[1] * x + m[5] * y + m[9] * z + m[13] * w;\n\t out[2] = m[2] * x + m[6] * y + m[10] * z + m[14] * w;\n\t out[3] = m[3] * x + m[7] * y + m[11] * z + m[15] * w;\n\t return out;\n\t};\n\t\n\t/**\n\t * Transforms the vec4 with a quat\n\t *\n\t * @param {vec4} out the receiving vector\n\t * @param {vec4} a the vector to transform\n\t * @param {quat} q quaternion to transform with\n\t * @returns {vec4} out\n\t */\n\tvec4.transformQuat = function(out, a, q) {\n\t var x = a[0], y = a[1], z = a[2],\n\t qx = q[0], qy = q[1], qz = q[2], qw = q[3],\n\t\n\t // calculate quat * vec\n\t ix = qw * x + qy * z - qz * y,\n\t iy = qw * y + qz * x - qx * z,\n\t iz = qw * z + qx * y - qy * x,\n\t iw = -qx * x - qy * y - qz * z;\n\t\n\t // calculate result * inverse quat\n\t out[0] = ix * qw + iw * -qx + iy * -qz - iz * -qy;\n\t out[1] = iy * qw + iw * -qy + iz * -qx - ix * -qz;\n\t out[2] = iz * qw + iw * -qz + ix * -qy - iy * -qx;\n\t out[3] = a[3];\n\t return out;\n\t};\n\t\n\t/**\n\t * Perform some operation over an array of vec4s.\n\t *\n\t * @param {Array} a the array of vectors to iterate over\n\t * @param {Number} stride Number of elements between the start of each vec4. If 0 assumes tightly packed\n\t * @param {Number} offset Number of elements to skip at the beginning of the array\n\t * @param {Number} count Number of vec4s to iterate over. If 0 iterates over entire array\n\t * @param {Function} fn Function to call for each vector in the array\n\t * @param {Object} [arg] additional argument to pass to fn\n\t * @returns {Array} a\n\t * @function\n\t */\n\tvec4.forEach = (function() {\n\t var vec = vec4.create();\n\t\n\t return function(a, stride, offset, count, fn, arg) {\n\t var i, l;\n\t if(!stride) {\n\t stride = 4;\n\t }\n\t\n\t if(!offset) {\n\t offset = 0;\n\t }\n\t \n\t if(count) {\n\t l = Math.min((count * stride) + offset, a.length);\n\t } else {\n\t l = a.length;\n\t }\n\t\n\t for(i = offset; i < l; i += stride) {\n\t vec[0] = a[i]; vec[1] = a[i+1]; vec[2] = a[i+2]; vec[3] = a[i+3];\n\t fn(vec, vec, arg);\n\t a[i] = vec[0]; a[i+1] = vec[1]; a[i+2] = vec[2]; a[i+3] = vec[3];\n\t }\n\t \n\t return a;\n\t };\n\t})();\n\t\n\t/**\n\t * Returns a string representation of a vector\n\t *\n\t * @param {vec4} vec vector to represent as a string\n\t * @returns {String} string representation of the vector\n\t */\n\tvec4.str = function (a) {\n\t return 'vec4(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' + a[3] + ')';\n\t};\n\t\n\tmodule.exports = vec4;\n\n\n/***/ },\n/* 18 */\n/***/ function(module, exports, __webpack_require__) {\n\n\t/* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV.\n\t\n\tPermission is hereby granted, free of charge, to any person obtaining a copy\n\tof this software and associated documentation files (the \"Software\"), to deal\n\tin the Software without restriction, including without limitation the rights\n\tto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n\tcopies of the Software, and to permit persons to whom the Software is\n\tfurnished to do so, subject to the following conditions:\n\t\n\tThe above copyright notice and this permission notice shall be included in\n\tall copies or substantial portions of the Software.\n\t\n\tTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n\tIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n\tFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n\tAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n\tLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n\tOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n\tTHE SOFTWARE. */\n\t\n\tvar glMatrix = __webpack_require__(10);\n\t\n\t/**\n\t * @class 2 Dimensional Vector\n\t * @name vec2\n\t */\n\tvar vec2 = {};\n\t\n\t/**\n\t * Creates a new, empty vec2\n\t *\n\t * @returns {vec2} a new 2D vector\n\t */\n\tvec2.create = function() {\n\t var out = new glMatrix.ARRAY_TYPE(2);\n\t out[0] = 0;\n\t out[1] = 0;\n\t return out;\n\t};\n\t\n\t/**\n\t * Creates a new vec2 initialized with values from an existing vector\n\t *\n\t * @param {vec2} a vector to clone\n\t * @returns {vec2} a new 2D vector\n\t */\n\tvec2.clone = function(a) {\n\t var out = new glMatrix.ARRAY_TYPE(2);\n\t out[0] = a[0];\n\t out[1] = a[1];\n\t return out;\n\t};\n\t\n\t/**\n\t * Creates a new vec2 initialized with the given values\n\t *\n\t * @param {Number} x X component\n\t * @param {Number} y Y component\n\t * @returns {vec2} a new 2D vector\n\t */\n\tvec2.fromValues = function(x, y) {\n\t var out = new glMatrix.ARRAY_TYPE(2);\n\t out[0] = x;\n\t out[1] = y;\n\t return out;\n\t};\n\t\n\t/**\n\t * Copy the values from one vec2 to another\n\t *\n\t * @param {vec2} out the receiving vector\n\t * @param {vec2} a the source vector\n\t * @returns {vec2} out\n\t */\n\tvec2.copy = function(out, a) {\n\t out[0] = a[0];\n\t out[1] = a[1];\n\t return out;\n\t};\n\t\n\t/**\n\t * Set the components of a vec2 to the given values\n\t *\n\t * @param {vec2} out the receiving vector\n\t * @param {Number} x X component\n\t * @param {Number} y Y component\n\t * @returns {vec2} out\n\t */\n\tvec2.set = function(out, x, y) {\n\t out[0] = x;\n\t out[1] = y;\n\t return out;\n\t};\n\t\n\t/**\n\t * Adds two vec2's\n\t *\n\t * @param {vec2} out the receiving vector\n\t * @param {vec2} a the first operand\n\t * @param {vec2} b the second operand\n\t * @returns {vec2} out\n\t */\n\tvec2.add = function(out, a, b) {\n\t out[0] = a[0] + b[0];\n\t out[1] = a[1] + b[1];\n\t return out;\n\t};\n\t\n\t/**\n\t * Subtracts vector b from vector a\n\t *\n\t * @param {vec2} out the receiving vector\n\t * @param {vec2} a the first operand\n\t * @param {vec2} b the second operand\n\t * @returns {vec2} out\n\t */\n\tvec2.subtract = function(out, a, b) {\n\t out[0] = a[0] - b[0];\n\t out[1] = a[1] - b[1];\n\t return out;\n\t};\n\t\n\t/**\n\t * Alias for {@link vec2.subtract}\n\t * @function\n\t */\n\tvec2.sub = vec2.subtract;\n\t\n\t/**\n\t * Multiplies two vec2's\n\t *\n\t * @param {vec2} out the receiving vector\n\t * @param {vec2} a the first operand\n\t * @param {vec2} b the second operand\n\t * @returns {vec2} out\n\t */\n\tvec2.multiply = function(out, a, b) {\n\t out[0] = a[0] * b[0];\n\t out[1] = a[1] * b[1];\n\t return out;\n\t};\n\t\n\t/**\n\t * Alias for {@link vec2.multiply}\n\t * @function\n\t */\n\tvec2.mul = vec2.multiply;\n\t\n\t/**\n\t * Divides two vec2's\n\t *\n\t * @param {vec2} out the receiving vector\n\t * @param {vec2} a the first operand\n\t * @param {vec2} b the second operand\n\t * @returns {vec2} out\n\t */\n\tvec2.divide = function(out, a, b) {\n\t out[0] = a[0] / b[0];\n\t out[1] = a[1] / b[1];\n\t return out;\n\t};\n\t\n\t/**\n\t * Alias for {@link vec2.divide}\n\t * @function\n\t */\n\tvec2.div = vec2.divide;\n\t\n\t/**\n\t * Returns the minimum of two vec2's\n\t *\n\t * @param {vec2} out the receiving vector\n\t * @param {vec2} a the first operand\n\t * @param {vec2} b the second operand\n\t * @returns {vec2} out\n\t */\n\tvec2.min = function(out, a, b) {\n\t out[0] = Math.min(a[0], b[0]);\n\t out[1] = Math.min(a[1], b[1]);\n\t return out;\n\t};\n\t\n\t/**\n\t * Returns the maximum of two vec2's\n\t *\n\t * @param {vec2} out the receiving vector\n\t * @param {vec2} a the first operand\n\t * @param {vec2} b the second operand\n\t * @returns {vec2} out\n\t */\n\tvec2.max = function(out, a, b) {\n\t out[0] = Math.max(a[0], b[0]);\n\t out[1] = Math.max(a[1], b[1]);\n\t return out;\n\t};\n\t\n\t/**\n\t * Scales a vec2 by a scalar number\n\t *\n\t * @param {vec2} out the receiving vector\n\t * @param {vec2} a the vector to scale\n\t * @param {Number} b amount to scale the vector by\n\t * @returns {vec2} out\n\t */\n\tvec2.scale = function(out, a, b) {\n\t out[0] = a[0] * b;\n\t out[1] = a[1] * b;\n\t return out;\n\t};\n\t\n\t/**\n\t * Adds two vec2's after scaling the second operand by a scalar value\n\t *\n\t * @param {vec2} out the receiving vector\n\t * @param {vec2} a the first operand\n\t * @param {vec2} b the second operand\n\t * @param {Number} scale the amount to scale b by before adding\n\t * @returns {vec2} out\n\t */\n\tvec2.scaleAndAdd = function(out, a, b, scale) {\n\t out[0] = a[0] + (b[0] * scale);\n\t out[1] = a[1] + (b[1] * scale);\n\t return out;\n\t};\n\t\n\t/**\n\t * Calculates the euclidian distance between two vec2's\n\t *\n\t * @param {vec2} a the first operand\n\t * @param {vec2} b the second operand\n\t * @returns {Number} distance between a and b\n\t */\n\tvec2.distance = function(a, b) {\n\t var x = b[0] - a[0],\n\t y = b[1] - a[1];\n\t return Math.sqrt(x*x + y*y);\n\t};\n\t\n\t/**\n\t * Alias for {@link vec2.distance}\n\t * @function\n\t */\n\tvec2.dist = vec2.distance;\n\t\n\t/**\n\t * Calculates the squared euclidian distance between two vec2's\n\t *\n\t * @param {vec2} a the first operand\n\t * @param {vec2} b the second operand\n\t * @returns {Number} squared distance between a and b\n\t */\n\tvec2.squaredDistance = function(a, b) {\n\t var x = b[0] - a[0],\n\t y = b[1] - a[1];\n\t return x*x + y*y;\n\t};\n\t\n\t/**\n\t * Alias for {@link vec2.squaredDistance}\n\t * @function\n\t */\n\tvec2.sqrDist = vec2.squaredDistance;\n\t\n\t/**\n\t * Calculates the length of a vec2\n\t *\n\t * @param {vec2} a vector to calculate length of\n\t * @returns {Number} length of a\n\t */\n\tvec2.length = function (a) {\n\t var x = a[0],\n\t y = a[1];\n\t return Math.sqrt(x*x + y*y);\n\t};\n\t\n\t/**\n\t * Alias for {@link vec2.length}\n\t * @function\n\t */\n\tvec2.len = vec2.length;\n\t\n\t/**\n\t * Calculates the squared length of a vec2\n\t *\n\t * @param {vec2} a vector to calculate squared length of\n\t * @returns {Number} squared length of a\n\t */\n\tvec2.squaredLength = function (a) {\n\t var x = a[0],\n\t y = a[1];\n\t return x*x + y*y;\n\t};\n\t\n\t/**\n\t * Alias for {@link vec2.squaredLength}\n\t * @function\n\t */\n\tvec2.sqrLen = vec2.squaredLength;\n\t\n\t/**\n\t * Negates the components of a vec2\n\t *\n\t * @param {vec2} out the receiving vector\n\t * @param {vec2} a vector to negate\n\t * @returns {vec2} out\n\t */\n\tvec2.negate = function(out, a) {\n\t out[0] = -a[0];\n\t out[1] = -a[1];\n\t return out;\n\t};\n\t\n\t/**\n\t * Returns the inverse of the components of a vec2\n\t *\n\t * @param {vec2} out the receiving vector\n\t * @param {vec2} a vector to invert\n\t * @returns {vec2} out\n\t */\n\tvec2.inverse = function(out, a) {\n\t out[0] = 1.0 / a[0];\n\t out[1] = 1.0 / a[1];\n\t return out;\n\t};\n\t\n\t/**\n\t * Normalize a vec2\n\t *\n\t * @param {vec2} out the receiving vector\n\t * @param {vec2} a vector to normalize\n\t * @returns {vec2} out\n\t */\n\tvec2.normalize = function(out, a) {\n\t var x = a[0],\n\t y = a[1];\n\t var len = x*x + y*y;\n\t if (len > 0) {\n\t //TODO: evaluate use of glm_invsqrt here?\n\t len = 1 / Math.sqrt(len);\n\t out[0] = a[0] * len;\n\t out[1] = a[1] * len;\n\t }\n\t return out;\n\t};\n\t\n\t/**\n\t * Calculates the dot product of two vec2's\n\t *\n\t * @param {vec2} a the first operand\n\t * @param {vec2} b the second operand\n\t * @returns {Number} dot product of a and b\n\t */\n\tvec2.dot = function (a, b) {\n\t return a[0] * b[0] + a[1] * b[1];\n\t};\n\t\n\t/**\n\t * Computes the cross product of two vec2's\n\t * Note that the cross product must by definition produce a 3D vector\n\t *\n\t * @param {vec3} out the receiving vector\n\t * @param {vec2} a the first operand\n\t * @param {vec2} b the second operand\n\t * @returns {vec3} out\n\t */\n\tvec2.cross = function(out, a, b) {\n\t var z = a[0] * b[1] - a[1] * b[0];\n\t out[0] = out[1] = 0;\n\t out[2] = z;\n\t return out;\n\t};\n\t\n\t/**\n\t * Performs a linear interpolation between two vec2's\n\t *\n\t * @param {vec2} out the receiving vector\n\t * @param {vec2} a the first operand\n\t * @param {vec2} b the second operand\n\t * @param {Number} t interpolation amount between the two inputs\n\t * @returns {vec2} out\n\t */\n\tvec2.lerp = function (out, a, b, t) {\n\t var ax = a[0],\n\t ay = a[1];\n\t out[0] = ax + t * (b[0] - ax);\n\t out[1] = ay + t * (b[1] - ay);\n\t return out;\n\t};\n\t\n\t/**\n\t * Generates a random vector with the given scale\n\t *\n\t * @param {vec2} out the receiving vector\n\t * @param {Number} [scale] Length of the resulting vector. If ommitted, a unit vector will be returned\n\t * @returns {vec2} out\n\t */\n\tvec2.random = function (out, scale) {\n\t scale = scale || 1.0;\n\t var r = glMatrix.RANDOM() * 2.0 * Math.PI;\n\t out[0] = Math.cos(r) * scale;\n\t out[1] = Math.sin(r) * scale;\n\t return out;\n\t};\n\t\n\t/**\n\t * Transforms the vec2 with a mat2\n\t *\n\t * @param {vec2} out the receiving vector\n\t * @param {vec2} a the vector to transform\n\t * @param {mat2} m matrix to transform with\n\t * @returns {vec2} out\n\t */\n\tvec2.transformMat2 = function(out, a, m) {\n\t var x = a[0],\n\t y = a[1];\n\t out[0] = m[0] * x + m[2] * y;\n\t out[1] = m[1] * x + m[3] * y;\n\t return out;\n\t};\n\t\n\t/**\n\t * Transforms the vec2 with a mat2d\n\t *\n\t * @param {vec2} out the receiving vector\n\t * @param {vec2} a the vector to transform\n\t * @param {mat2d} m matrix to transform with\n\t * @returns {vec2} out\n\t */\n\tvec2.transformMat2d = function(out, a, m) {\n\t var x = a[0],\n\t y = a[1];\n\t out[0] = m[0] * x + m[2] * y + m[4];\n\t out[1] = m[1] * x + m[3] * y + m[5];\n\t return out;\n\t};\n\t\n\t/**\n\t * Transforms the vec2 with a mat3\n\t * 3rd vector component is implicitly '1'\n\t *\n\t * @param {vec2} out the receiving vector\n\t * @param {vec2} a the vector to transform\n\t * @param {mat3} m matrix to transform with\n\t * @returns {vec2} out\n\t */\n\tvec2.transformMat3 = function(out, a, m) {\n\t var x = a[0],\n\t y = a[1];\n\t out[0] = m[0] * x + m[3] * y + m[6];\n\t out[1] = m[1] * x + m[4] * y + m[7];\n\t return out;\n\t};\n\t\n\t/**\n\t * Transforms the vec2 with a mat4\n\t * 3rd vector component is implicitly '0'\n\t * 4th vector component is implicitly '1'\n\t *\n\t * @param {vec2} out the receiving vector\n\t * @param {vec2} a the vector to transform\n\t * @param {mat4} m matrix to transform with\n\t * @returns {vec2} out\n\t */\n\tvec2.transformMat4 = function(out, a, m) {\n\t var x = a[0], \n\t y = a[1];\n\t out[0] = m[0] * x + m[4] * y + m[12];\n\t out[1] = m[1] * x + m[5] * y + m[13];\n\t return out;\n\t};\n\t\n\t/**\n\t * Perform some operation over an array of vec2s.\n\t *\n\t * @param {Array} a the array of vectors to iterate over\n\t * @param {Number} stride Number of elements between the start of each vec2. If 0 assumes tightly packed\n\t * @param {Number} offset Number of elements to skip at the beginning of the array\n\t * @param {Number} count Number of vec2s to iterate over. If 0 iterates over entire array\n\t * @param {Function} fn Function to call for each vector in the array\n\t * @param {Object} [arg] additional argument to pass to fn\n\t * @returns {Array} a\n\t * @function\n\t */\n\tvec2.forEach = (function() {\n\t var vec = vec2.create();\n\t\n\t return function(a, stride, offset, count, fn, arg) {\n\t var i, l;\n\t if(!stride) {\n\t stride = 2;\n\t }\n\t\n\t if(!offset) {\n\t offset = 0;\n\t }\n\t \n\t if(count) {\n\t l = Math.min((count * stride) + offset, a.length);\n\t } else {\n\t l = a.length;\n\t }\n\t\n\t for(i = offset; i < l; i += stride) {\n\t vec[0] = a[i]; vec[1] = a[i+1];\n\t fn(vec, vec, arg);\n\t a[i] = vec[0]; a[i+1] = vec[1];\n\t }\n\t \n\t return a;\n\t };\n\t})();\n\t\n\t/**\n\t * Returns a string representation of a vector\n\t *\n\t * @param {vec2} vec vector to represent as a string\n\t * @returns {String} string representation of the vector\n\t */\n\tvec2.str = function (a) {\n\t return 'vec2(' + a[0] + ', ' + a[1] + ')';\n\t};\n\t\n\tmodule.exports = vec2;\n\n\n/***/ },\n/* 19 */\n/***/ function(module, exports) {\n\n\t\"use strict\";\n\t\n\tObject.defineProperty(exports, \"__esModule\", {\n\t value: true\n\t});\n\texports[\"default\"] = {\n\t init: function init(arr, val) {\n\t var l = arr.length;\n\t while (l--) {\n\t arr[l] = val;\n\t }\n\t },\n\t\n\t /**\n\t * Shuffles the content of an array\n\t * @return {Array} the array itself shuffled\n\t */\n\t shuffle: function shuffle(arr) {\n\t var i = arr.length - 1,\n\t j,\n\t x;\n\t for (i; i >= 0; i--) {\n\t j = Math.floor(Math.random() * i);\n\t x = arr[i];\n\t arr[i] = arr[j];\n\t arr[j] = x;\n\t }\n\t return arr;\n\t },\n\t\n\t toPointList: function toPointList(arr) {\n\t var i,\n\t j,\n\t row = [],\n\t rows = [];\n\t for (i = 0; i < arr.length; i++) {\n\t row = [];\n\t for (j = 0; j < arr[i].length; j++) {\n\t row[j] = arr[i][j];\n\t }\n\t rows[i] = \"[\" + row.join(\",\") + \"]\";\n\t }\n\t return \"[\" + rows.join(\",\\r\\n\") + \"]\";\n\t },\n\t\n\t /**\n\t * returns the elements which's score is bigger than the threshold\n\t * @return {Array} the reduced array\n\t */\n\t threshold: function threshold(arr, _threshold, scoreFunc) {\n\t var i,\n\t queue = [];\n\t for (i = 0; i < arr.length; i++) {\n\t if (scoreFunc.apply(arr, [arr[i]]) >= _threshold) {\n\t queue.push(arr[i]);\n\t }\n\t }\n\t return queue;\n\t },\n\t\n\t maxIndex: function maxIndex(arr) {\n\t var i,\n\t max = 0;\n\t for (i = 0; i < arr.length; i++) {\n\t if (arr[i] > arr[max]) {\n\t max = i;\n\t }\n\t }\n\t return max;\n\t },\n\t\n\t max: function max(arr) {\n\t var i,\n\t max = 0;\n\t for (i = 0; i < arr.length; i++) {\n\t if (arr[i] > max) {\n\t max = arr[i];\n\t }\n\t }\n\t return max;\n\t },\n\t\n\t sum: function sum(arr) {\n\t var length = arr.length,\n\t sum = 0;\n\t\n\t while (length--) {\n\t sum += arr[length];\n\t }\n\t return sum;\n\t }\n\t};\n\tmodule.exports = exports[\"default\"];\n\n/***/ },\n/* 20 */\n/***/ function(module, exports, __webpack_require__) {\n\n\t/* jshint undef: true, unused: true, browser:true, devel: true */\n\t/* global define */\n\t\n\t'use strict';\n\t\n\tObject.defineProperty(exports, '__esModule', {\n\t value: true\n\t});\n\t\n\tfunction _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }\n\t\n\tvar _image_wrapper = __webpack_require__(5);\n\t\n\tvar _image_wrapper2 = _interopRequireDefault(_image_wrapper);\n\t\n\tvar _cv_utils = __webpack_require__(7);\n\t\n\tvar _cv_utils2 = _interopRequireDefault(_cv_utils);\n\t\n\tvar _rasterizer = __webpack_require__(21);\n\t\n\tvar _rasterizer2 = _interopRequireDefault(_rasterizer);\n\t\n\tvar _tracer = __webpack_require__(22);\n\t\n\tvar _tracer2 = _interopRequireDefault(_tracer);\n\t\n\tvar _skeletonizer2 = __webpack_require__(23);\n\t\n\tvar _skeletonizer3 = _interopRequireDefault(_skeletonizer2);\n\t\n\tvar _array_helper = __webpack_require__(19);\n\t\n\tvar _array_helper2 = _interopRequireDefault(_array_helper);\n\t\n\tvar _image_debug = __webpack_require__(24);\n\t\n\tvar _image_debug2 = _interopRequireDefault(_image_debug);\n\t\n\tvar _glMatrix = __webpack_require__(9);\n\t\n\tvar _glMatrix2 = _interopRequireDefault(_glMatrix);\n\t\n\tvar _config,\n\t _currentImageWrapper,\n\t _skelImageWrapper,\n\t _subImageWrapper,\n\t _labelImageWrapper,\n\t _patchGrid,\n\t _patchLabelGrid,\n\t _imageToPatchGrid,\n\t _binaryImageWrapper,\n\t _patchSize,\n\t _canvasContainer = {\n\t ctx: {\n\t binary: null\n\t },\n\t dom: {\n\t binary: null\n\t }\n\t},\n\t _numPatches = { x: 0, y: 0 },\n\t _inputImageWrapper,\n\t _skeletonizer,\n\t vec2 = _glMatrix2['default'].vec2,\n\t mat2 = _glMatrix2['default'].mat2,\n\t self = typeof window !== 'undefined' ? window : self;\n\t\n\tfunction initBuffers() {\n\t var skeletonImageData;\n\t\n\t if (_config.halfSample) {\n\t _currentImageWrapper = new _image_wrapper2['default']({\n\t x: _inputImageWrapper.size.x / 2 | 0,\n\t y: _inputImageWrapper.size.y / 2 | 0\n\t });\n\t } else {\n\t _currentImageWrapper = _inputImageWrapper;\n\t }\n\t\n\t _patchSize = _cv_utils2['default'].calculatePatchSize(_config.patchSize, _currentImageWrapper.size);\n\t\n\t _numPatches.x = _currentImageWrapper.size.x / _patchSize.x | 0;\n\t _numPatches.y = _currentImageWrapper.size.y / _patchSize.y | 0;\n\t\n\t _binaryImageWrapper = new _image_wrapper2['default'](_currentImageWrapper.size, undefined, Uint8Array, false);\n\t\n\t _labelImageWrapper = new _image_wrapper2['default'](_patchSize, undefined, Array, true);\n\t\n\t skeletonImageData = new ArrayBuffer(64 * 1024);\n\t _subImageWrapper = new _image_wrapper2['default'](_patchSize, new Uint8Array(skeletonImageData, 0, _patchSize.x * _patchSize.y));\n\t _skelImageWrapper = new _image_wrapper2['default'](_patchSize, new Uint8Array(skeletonImageData, _patchSize.x * _patchSize.y * 3, _patchSize.x * _patchSize.y), undefined, true);\n\t _skeletonizer = (0, _skeletonizer3['default'])(self, {\n\t size: _patchSize.x\n\t }, skeletonImageData);\n\t\n\t _imageToPatchGrid = new _image_wrapper2['default']({\n\t x: _currentImageWrapper.size.x / _subImageWrapper.size.x | 0,\n\t y: _currentImageWrapper.size.y / _subImageWrapper.size.y | 0\n\t }, undefined, Array, true);\n\t _patchGrid = new _image_wrapper2['default'](_imageToPatchGrid.size, undefined, undefined, true);\n\t _patchLabelGrid = new _image_wrapper2['default'](_imageToPatchGrid.size, undefined, Int32Array, true);\n\t}\n\t\n\tfunction initCanvas() {\n\t if (_config.useWorker || typeof document === 'undefined') {\n\t return;\n\t }\n\t _canvasContainer.dom.binary = document.createElement(\"canvas\");\n\t _canvasContainer.dom.binary.className = \"binaryBuffer\";\n\t if (_config.showCanvas === true) {\n\t document.querySelector(\"#debug\").appendChild(_canvasContainer.dom.binary);\n\t }\n\t _canvasContainer.ctx.binary = _canvasContainer.dom.binary.getContext(\"2d\");\n\t _canvasContainer.dom.binary.width = _binaryImageWrapper.size.x;\n\t _canvasContainer.dom.binary.height = _binaryImageWrapper.size.y;\n\t}\n\t\n\t/**\n\t * Creates a bounding box which encloses all the given patches\n\t * @returns {Array} The minimal bounding box\n\t */\n\tfunction boxFromPatches(patches) {\n\t var overAvg,\n\t i,\n\t j,\n\t patch,\n\t transMat,\n\t minx = _binaryImageWrapper.size.x,\n\t miny = _binaryImageWrapper.size.y,\n\t maxx = -_binaryImageWrapper.size.x,\n\t maxy = -_binaryImageWrapper.size.y,\n\t box,\n\t scale;\n\t\n\t // draw all patches which are to be taken into consideration\n\t overAvg = 0;\n\t for (i = 0; i < patches.length; i++) {\n\t patch = patches[i];\n\t overAvg += patch.rad;\n\t if (_config.showPatches) {\n\t _image_debug2['default'].drawRect(patch.pos, _subImageWrapper.size, _canvasContainer.ctx.binary, { color: \"red\" });\n\t }\n\t }\n\t\n\t overAvg /= patches.length;\n\t overAvg = (overAvg * 180 / Math.PI + 90) % 180 - 90;\n\t if (overAvg < 0) {\n\t overAvg += 180;\n\t }\n\t\n\t overAvg = (180 - overAvg) * Math.PI / 180;\n\t transMat = mat2.clone([Math.cos(overAvg), Math.sin(overAvg), -Math.sin(overAvg), Math.cos(overAvg)]);\n\t\n\t // iterate over patches and rotate by angle\n\t for (i = 0; i < patches.length; i++) {\n\t patch = patches[i];\n\t for (j = 0; j < 4; j++) {\n\t vec2.transformMat2(patch.box[j], patch.box[j], transMat);\n\t }\n\t\n\t if (_config.boxFromPatches.showTransformed) {\n\t _image_debug2['default'].drawPath(patch.box, { x: 0, y: 1 }, _canvasContainer.ctx.binary, { color: '#99ff00', lineWidth: 2 });\n\t }\n\t }\n\t\n\t // find bounding box\n\t for (i = 0; i < patches.length; i++) {\n\t patch = patches[i];\n\t for (j = 0; j < 4; j++) {\n\t if (patch.box[j][0] < minx) {\n\t minx = patch.box[j][0];\n\t }\n\t if (patch.box[j][0] > maxx) {\n\t maxx = patch.box[j][0];\n\t }\n\t if (patch.box[j][1] < miny) {\n\t miny = patch.box[j][1];\n\t }\n\t if (patch.box[j][1] > maxy) {\n\t maxy = patch.box[j][1];\n\t }\n\t }\n\t }\n\t\n\t box = [[minx, miny], [maxx, miny], [maxx, maxy], [minx, maxy]];\n\t\n\t if (_config.boxFromPatches.showTransformedBox) {\n\t _image_debug2['default'].drawPath(box, { x: 0, y: 1 }, _canvasContainer.ctx.binary, { color: '#ff0000', lineWidth: 2 });\n\t }\n\t\n\t scale = _config.halfSample ? 2 : 1;\n\t // reverse rotation;\n\t transMat = mat2.invert(transMat, transMat);\n\t for (j = 0; j < 4; j++) {\n\t vec2.transformMat2(box[j], box[j], transMat);\n\t }\n\t\n\t if (_config.boxFromPatches.showBB) {\n\t _image_debug2['default'].drawPath(box, { x: 0, y: 1 }, _canvasContainer.ctx.binary, { color: '#ff0000', lineWidth: 2 });\n\t }\n\t\n\t for (j = 0; j < 4; j++) {\n\t vec2.scale(box[j], box[j], scale);\n\t }\n\t\n\t return box;\n\t}\n\t\n\t/**\n\t * Creates a binary image of the current image\n\t */\n\tfunction binarizeImage() {\n\t _cv_utils2['default'].otsuThreshold(_currentImageWrapper, _binaryImageWrapper);\n\t _binaryImageWrapper.zeroBorder();\n\t if (_config.showCanvas) {\n\t _binaryImageWrapper.show(_canvasContainer.dom.binary, 255);\n\t }\n\t}\n\t\n\t/**\n\t * Iterate over the entire image\n\t * extract patches\n\t */\n\tfunction findPatches() {\n\t var i,\n\t j,\n\t x,\n\t y,\n\t moments,\n\t patchesFound = [],\n\t rasterizer,\n\t rasterResult,\n\t patch;\n\t for (i = 0; i < _numPatches.x; i++) {\n\t for (j = 0; j < _numPatches.y; j++) {\n\t\n\t x = _subImageWrapper.size.x * i;\n\t y = _subImageWrapper.size.y * j;\n\t\n\t // seperate parts\n\t skeletonize(x, y);\n\t\n\t // Rasterize, find individual bars\n\t _skelImageWrapper.zeroBorder();\n\t _array_helper2['default'].init(_labelImageWrapper.data, 0);\n\t rasterizer = _rasterizer2['default'].create(_skelImageWrapper, _labelImageWrapper);\n\t rasterResult = rasterizer.rasterize(0);\n\t\n\t if (_config.showLabels) {\n\t _labelImageWrapper.overlay(_canvasContainer.dom.binary, Math.floor(360 / rasterResult.count), { x: x, y: y });\n\t }\n\t\n\t // calculate moments from the skeletonized patch\n\t moments = _labelImageWrapper.moments(rasterResult.count);\n\t\n\t // extract eligible patches\n\t patchesFound = patchesFound.concat(describePatch(moments, [i, j], x, y));\n\t }\n\t }\n\t\n\t if (_config.showFoundPatches) {\n\t for (i = 0; i < patchesFound.length; i++) {\n\t patch = patchesFound[i];\n\t _image_debug2['default'].drawRect(patch.pos, _subImageWrapper.size, _canvasContainer.ctx.binary, { color: \"#99ff00\", lineWidth: 2 });\n\t }\n\t }\n\t\n\t return patchesFound;\n\t}\n\t\n\t/**\n\t * Finds those connected areas which contain at least 6 patches\n\t * and returns them ordered DESC by the number of contained patches\n\t * @param {Number} maxLabel\n\t */\n\tfunction findBiggestConnectedAreas(maxLabel) {\n\t var i,\n\t sum,\n\t labelHist = [],\n\t topLabels = [];\n\t\n\t for (i = 0; i < maxLabel; i++) {\n\t labelHist.push(0);\n\t }\n\t sum = _patchLabelGrid.data.length;\n\t while (sum--) {\n\t if (_patchLabelGrid.data[sum] > 0) {\n\t labelHist[_patchLabelGrid.data[sum] - 1]++;\n\t }\n\t }\n\t\n\t labelHist = labelHist.map(function (val, idx) {\n\t return {\n\t val: val,\n\t label: idx + 1\n\t };\n\t });\n\t\n\t labelHist.sort(function (a, b) {\n\t return b.val - a.val;\n\t });\n\t\n\t // extract top areas with at least 6 patches present\n\t topLabels = labelHist.filter(function (el) {\n\t return el.val >= 5;\n\t });\n\t\n\t return topLabels;\n\t}\n\t\n\t/**\n\t *\n\t */\n\tfunction findBoxes(topLabels, maxLabel) {\n\t var i,\n\t j,\n\t sum,\n\t patches = [],\n\t patch,\n\t box,\n\t boxes = [],\n\t hsv = [0, 1, 1],\n\t rgb = [0, 0, 0];\n\t\n\t for (i = 0; i < topLabels.length; i++) {\n\t sum = _patchLabelGrid.data.length;\n\t patches.length = 0;\n\t while (sum--) {\n\t if (_patchLabelGrid.data[sum] === topLabels[i].label) {\n\t patch = _imageToPatchGrid.data[sum];\n\t patches.push(patch);\n\t }\n\t }\n\t box = boxFromPatches(patches);\n\t if (box) {\n\t boxes.push(box);\n\t\n\t // draw patch-labels if requested\n\t if (_config.showRemainingPatchLabels) {\n\t for (j = 0; j < patches.length; j++) {\n\t patch = patches[j];\n\t hsv[0] = topLabels[i].label / (maxLabel + 1) * 360;\n\t _cv_utils2['default'].hsv2rgb(hsv, rgb);\n\t _image_debug2['default'].drawRect(patch.pos, _subImageWrapper.size, _canvasContainer.ctx.binary, { color: \"rgb(\" + rgb.join(\",\") + \")\", lineWidth: 2 });\n\t }\n\t }\n\t }\n\t }\n\t return boxes;\n\t}\n\t\n\t/**\n\t * Find similar moments (via cluster)\n\t * @param {Object} moments\n\t */\n\tfunction similarMoments(moments) {\n\t var clusters = _cv_utils2['default'].cluster(moments, 0.90);\n\t var topCluster = _cv_utils2['default'].topGeneric(clusters, 1, function (e) {\n\t return e.getPoints().length;\n\t });\n\t var points = [],\n\t result = [];\n\t if (topCluster.length === 1) {\n\t points = topCluster[0].item.getPoints();\n\t for (var i = 0; i < points.length; i++) {\n\t result.push(points[i].point);\n\t }\n\t }\n\t return result;\n\t}\n\t\n\tfunction skeletonize(x, y) {\n\t _binaryImageWrapper.subImageAsCopy(_subImageWrapper, _cv_utils2['default'].imageRef(x, y));\n\t _skeletonizer.skeletonize();\n\t\n\t // Show skeleton if requested\n\t if (_config.showSkeleton) {\n\t _skelImageWrapper.overlay(_canvasContainer.dom.binary, 360, _cv_utils2['default'].imageRef(x, y));\n\t }\n\t}\n\t\n\t/**\n\t * Extracts and describes those patches which seem to contain a barcode pattern\n\t * @param {Array} moments\n\t * @param {Object} patchPos,\n\t * @param {Number} x\n\t * @param {Number} y\n\t * @returns {Array} list of patches\n\t */\n\tfunction describePatch(moments, patchPos, x, y) {\n\t var k,\n\t avg,\n\t sum = 0,\n\t eligibleMoments = [],\n\t matchingMoments,\n\t patch,\n\t patchesFound = [],\n\t minComponentWeight = Math.ceil(_patchSize.x / 3);\n\t\n\t if (moments.length >= 2) {\n\t // only collect moments which's area covers at least minComponentWeight pixels.\n\t for (k = 0; k < moments.length; k++) {\n\t if (moments[k].m00 > minComponentWeight) {\n\t eligibleMoments.push(moments[k]);\n\t }\n\t }\n\t\n\t // if at least 2 moments are found which have at least minComponentWeights covered\n\t if (eligibleMoments.length >= 2) {\n\t sum = eligibleMoments.length;\n\t matchingMoments = similarMoments(eligibleMoments);\n\t avg = 0;\n\t // determine the similarity of the moments\n\t for (k = 0; k < matchingMoments.length; k++) {\n\t avg += matchingMoments[k].rad;\n\t }\n\t\n\t // Only two of the moments are allowed not to fit into the equation\n\t // add the patch to the set\n\t if (matchingMoments.length > 1 && matchingMoments.length >= eligibleMoments.length / 4 * 3 && matchingMoments.length > moments.length / 4) {\n\t avg /= matchingMoments.length;\n\t patch = {\n\t index: patchPos[1] * _numPatches.x + patchPos[0],\n\t pos: {\n\t x: x,\n\t y: y\n\t },\n\t box: [vec2.clone([x, y]), vec2.clone([x + _subImageWrapper.size.x, y]), vec2.clone([x + _subImageWrapper.size.x, y + _subImageWrapper.size.y]), vec2.clone([x, y + _subImageWrapper.size.y])],\n\t moments: matchingMoments,\n\t rad: avg,\n\t vec: vec2.clone([Math.cos(avg), Math.sin(avg)])\n\t };\n\t patchesFound.push(patch);\n\t }\n\t }\n\t }\n\t return patchesFound;\n\t}\n\t\n\t/**\n\t * finds patches which are connected and share the same orientation\n\t * @param {Object} patchesFound\n\t */\n\tfunction rasterizeAngularSimilarity(patchesFound) {\n\t var label = 0,\n\t threshold = 0.95,\n\t currIdx = 0,\n\t j,\n\t patch,\n\t hsv = [0, 1, 1],\n\t rgb = [0, 0, 0];\n\t\n\t function notYetProcessed() {\n\t var i;\n\t for (i = 0; i < _patchLabelGrid.data.length; i++) {\n\t if (_patchLabelGrid.data[i] === 0 && _patchGrid.data[i] === 1) {\n\t return i;\n\t }\n\t }\n\t return _patchLabelGrid.length;\n\t }\n\t\n\t function trace(currentIdx) {\n\t var x,\n\t y,\n\t currentPatch,\n\t patch,\n\t idx,\n\t dir,\n\t current = {\n\t x: currentIdx % _patchLabelGrid.size.x,\n\t y: currentIdx / _patchLabelGrid.size.x | 0\n\t },\n\t similarity;\n\t\n\t if (currentIdx < _patchLabelGrid.data.length) {\n\t currentPatch = _imageToPatchGrid.data[currentIdx];\n\t // assign label\n\t _patchLabelGrid.data[currentIdx] = label;\n\t for (dir = 0; dir < _tracer2['default'].searchDirections.length; dir++) {\n\t y = current.y + _tracer2['default'].searchDirections[dir][0];\n\t x = current.x + _tracer2['default'].searchDirections[dir][1];\n\t idx = y * _patchLabelGrid.size.x + x;\n\t\n\t // continue if patch empty\n\t if (_patchGrid.data[idx] === 0) {\n\t _patchLabelGrid.data[idx] = Number.MAX_VALUE;\n\t continue;\n\t }\n\t\n\t patch = _imageToPatchGrid.data[idx];\n\t if (_patchLabelGrid.data[idx] === 0) {\n\t similarity = Math.abs(vec2.dot(patch.vec, currentPatch.vec));\n\t if (similarity > threshold) {\n\t trace(idx);\n\t }\n\t }\n\t }\n\t }\n\t }\n\t\n\t // prepare for finding the right patches\n\t _array_helper2['default'].init(_patchGrid.data, 0);\n\t _array_helper2['default'].init(_patchLabelGrid.data, 0);\n\t _array_helper2['default'].init(_imageToPatchGrid.data, null);\n\t\n\t for (j = 0; j < patchesFound.length; j++) {\n\t patch = patchesFound[j];\n\t _imageToPatchGrid.data[patch.index] = patch;\n\t _patchGrid.data[patch.index] = 1;\n\t }\n\t\n\t // rasterize the patches found to determine area\n\t _patchGrid.zeroBorder();\n\t\n\t while ((currIdx = notYetProcessed()) < _patchLabelGrid.data.length) {\n\t label++;\n\t trace(currIdx);\n\t }\n\t\n\t // draw patch-labels if requested\n\t if (_config.showPatchLabels) {\n\t for (j = 0; j < _patchLabelGrid.data.length; j++) {\n\t if (_patchLabelGrid.data[j] > 0 && _patchLabelGrid.data[j] <= label) {\n\t patch = _imageToPatchGrid.data[j];\n\t hsv[0] = _patchLabelGrid.data[j] / (label + 1) * 360;\n\t _cv_utils2['default'].hsv2rgb(hsv, rgb);\n\t _image_debug2['default'].drawRect(patch.pos, _subImageWrapper.size, _canvasContainer.ctx.binary, { color: \"rgb(\" + rgb.join(\",\") + \")\", lineWidth: 2 });\n\t }\n\t }\n\t }\n\t\n\t return label;\n\t}\n\t\n\texports['default'] = {\n\t init: function init(inputImageWrapper, config) {\n\t _config = config;\n\t _inputImageWrapper = inputImageWrapper;\n\t\n\t initBuffers();\n\t initCanvas();\n\t },\n\t\n\t locate: function locate() {\n\t var patchesFound, topLabels, boxes;\n\t\n\t if (_config.halfSample) {\n\t _cv_utils2['default'].halfSample(_inputImageWrapper, _currentImageWrapper);\n\t }\n\t\n\t binarizeImage();\n\t patchesFound = findPatches();\n\t // return unless 5% or more patches are found\n\t if (patchesFound.length < _numPatches.x * _numPatches.y * 0.05) {\n\t return null;\n\t }\n\t\n\t // rasterrize area by comparing angular similarity;\n\t var maxLabel = rasterizeAngularSimilarity(patchesFound);\n\t if (maxLabel < 1) {\n\t return null;\n\t }\n\t\n\t // search for area with the most patches (biggest connected area)\n\t topLabels = findBiggestConnectedAreas(maxLabel);\n\t if (topLabels.length === 0) {\n\t return null;\n\t }\n\t\n\t boxes = findBoxes(topLabels, maxLabel);\n\t return boxes;\n\t },\n\t\n\t checkImageConstraints: function checkImageConstraints(inputStream, config) {\n\t var patchSize,\n\t width = inputStream.getWidth(),\n\t height = inputStream.getHeight(),\n\t halfSample = config.halfSample ? 0.5 : 1,\n\t size,\n\t area;\n\t\n\t // calculate width and height based on area\n\t if (inputStream.getConfig().area) {\n\t area = _cv_utils2['default'].computeImageArea(width, height, inputStream.getConfig().area);\n\t inputStream.setTopRight({ x: area.sx, y: area.sy });\n\t inputStream.setCanvasSize({ x: width, y: height });\n\t width = area.sw;\n\t height = area.sh;\n\t }\n\t\n\t size = {\n\t x: Math.floor(width * halfSample),\n\t y: Math.floor(height * halfSample)\n\t };\n\t\n\t patchSize = _cv_utils2['default'].calculatePatchSize(config.patchSize, size);\n\t console.log(\"Patch-Size: \" + JSON.stringify(patchSize));\n\t\n\t inputStream.setWidth(Math.floor(Math.floor(size.x / patchSize.x) * (1 / halfSample) * patchSize.x));\n\t inputStream.setHeight(Math.floor(Math.floor(size.y / patchSize.y) * (1 / halfSample) * patchSize.y));\n\t\n\t if (inputStream.getWidth() % patchSize.x === 0 && inputStream.getHeight() % patchSize.y === 0) {\n\t return true;\n\t }\n\t\n\t throw new Error(\"Image dimensions do not comply with the current settings: Width (\" + width + \" )and height (\" + height + \") must a multiple of \" + patchSize.x);\n\t }\n\t};\n\tmodule.exports = exports['default'];\n\n/***/ },\n/* 21 */\n/***/ function(module, exports, __webpack_require__) {\n\n\t\"use strict\";\n\t\n\tObject.defineProperty(exports, \"__esModule\", {\n\t value: true\n\t});\n\t\n\tfunction _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { \"default\": obj }; }\n\t\n\tvar _tracer = __webpack_require__(22);\n\t\n\tvar _tracer2 = _interopRequireDefault(_tracer);\n\t\n\t/**\n\t * http://www.codeproject.com/Tips/407172/Connected-Component-Labeling-and-Vectorization\n\t */\n\tvar Rasterizer = {\n\t createContour2D: function createContour2D() {\n\t return {\n\t dir: null,\n\t index: null,\n\t firstVertex: null,\n\t insideContours: null,\n\t nextpeer: null,\n\t prevpeer: null\n\t };\n\t },\n\t CONTOUR_DIR: {\n\t CW_DIR: 0,\n\t CCW_DIR: 1,\n\t UNKNOWN_DIR: 2\n\t },\n\t DIR: {\n\t OUTSIDE_EDGE: -32767,\n\t INSIDE_EDGE: -32766\n\t },\n\t create: function create(imageWrapper, labelWrapper) {\n\t var imageData = imageWrapper.data,\n\t labelData = labelWrapper.data,\n\t width = imageWrapper.size.x,\n\t height = imageWrapper.size.y,\n\t tracer = _tracer2[\"default\"].create(imageWrapper, labelWrapper);\n\t\n\t return {\n\t rasterize: function rasterize(depthlabel) {\n\t var color,\n\t bc,\n\t lc,\n\t labelindex,\n\t cx,\n\t cy,\n\t colorMap = [],\n\t vertex,\n\t p,\n\t cc,\n\t sc,\n\t pos,\n\t connectedCount = 0,\n\t i;\n\t\n\t for (i = 0; i < 400; i++) {\n\t colorMap[i] = 0;\n\t }\n\t\n\t colorMap[0] = imageData[0];\n\t cc = null;\n\t for (cy = 1; cy < height - 1; cy++) {\n\t labelindex = 0;\n\t bc = colorMap[0];\n\t for (cx = 1; cx < width - 1; cx++) {\n\t pos = cy * width + cx;\n\t if (labelData[pos] === 0) {\n\t color = imageData[pos];\n\t if (color !== bc) {\n\t if (labelindex === 0) {\n\t lc = connectedCount + 1;\n\t colorMap[lc] = color;\n\t bc = color;\n\t vertex = tracer.contourTracing(cy, cx, lc, color, Rasterizer.DIR.OUTSIDE_EDGE);\n\t if (vertex !== null) {\n\t connectedCount++;\n\t labelindex = lc;\n\t p = Rasterizer.createContour2D();\n\t p.dir = Rasterizer.CONTOUR_DIR.CW_DIR;\n\t p.index = labelindex;\n\t p.firstVertex = vertex;\n\t p.nextpeer = cc;\n\t p.insideContours = null;\n\t if (cc !== null) {\n\t cc.prevpeer = p;\n\t }\n\t cc = p;\n\t }\n\t } else {\n\t vertex = tracer.contourTracing(cy, cx, Rasterizer.DIR.INSIDE_EDGE, color, labelindex);\n\t if (vertex !== null) {\n\t p = Rasterizer.createContour2D();\n\t p.firstVertex = vertex;\n\t p.insideContours = null;\n\t if (depthlabel === 0) {\n\t p.dir = Rasterizer.CONTOUR_DIR.CCW_DIR;\n\t } else {\n\t p.dir = Rasterizer.CONTOUR_DIR.CW_DIR;\n\t }\n\t p.index = depthlabel;\n\t sc = cc;\n\t while (sc !== null && sc.index !== labelindex) {\n\t sc = sc.nextpeer;\n\t }\n\t if (sc !== null) {\n\t p.nextpeer = sc.insideContours;\n\t if (sc.insideContours !== null) {\n\t sc.insideContours.prevpeer = p;\n\t }\n\t sc.insideContours = p;\n\t }\n\t }\n\t }\n\t } else {\n\t labelData[pos] = labelindex;\n\t }\n\t } else if (labelData[pos] === Rasterizer.DIR.OUTSIDE_EDGE || labelData[pos] === Rasterizer.DIR.INSIDE_EDGE) {\n\t labelindex = 0;\n\t if (labelData[pos] === Rasterizer.DIR.INSIDE_EDGE) {\n\t bc = imageData[pos];\n\t } else {\n\t bc = colorMap[0];\n\t }\n\t } else {\n\t labelindex = labelData[pos];\n\t bc = colorMap[labelindex];\n\t }\n\t }\n\t }\n\t sc = cc;\n\t while (sc !== null) {\n\t sc.index = depthlabel;\n\t sc = sc.nextpeer;\n\t }\n\t return {\n\t cc: cc,\n\t count: connectedCount\n\t };\n\t },\n\t debug: {\n\t drawContour: function drawContour(canvas, firstContour) {\n\t var ctx = canvas.getContext(\"2d\"),\n\t pq = firstContour,\n\t iq,\n\t q,\n\t p;\n\t\n\t ctx.strokeStyle = \"red\";\n\t ctx.fillStyle = \"red\";\n\t ctx.lineWidth = 1;\n\t\n\t if (pq !== null) {\n\t iq = pq.insideContours;\n\t } else {\n\t iq = null;\n\t }\n\t\n\t while (pq !== null) {\n\t if (iq !== null) {\n\t q = iq;\n\t iq = iq.nextpeer;\n\t } else {\n\t q = pq;\n\t pq = pq.nextpeer;\n\t if (pq !== null) {\n\t iq = pq.insideContours;\n\t } else {\n\t iq = null;\n\t }\n\t }\n\t\n\t switch (q.dir) {\n\t case Rasterizer.CONTOUR_DIR.CW_DIR:\n\t ctx.strokeStyle = \"red\";\n\t break;\n\t case Rasterizer.CONTOUR_DIR.CCW_DIR:\n\t ctx.strokeStyle = \"blue\";\n\t break;\n\t case Rasterizer.CONTOUR_DIR.UNKNOWN_DIR:\n\t ctx.strokeStyle = \"green\";\n\t break;\n\t }\n\t\n\t p = q.firstVertex;\n\t ctx.beginPath();\n\t ctx.moveTo(p.x, p.y);\n\t do {\n\t p = p.next;\n\t ctx.lineTo(p.x, p.y);\n\t } while (p !== q.firstVertex);\n\t ctx.stroke();\n\t }\n\t }\n\t }\n\t };\n\t }\n\t};\n\t\n\texports[\"default\"] = Rasterizer;\n\tmodule.exports = exports[\"default\"];\n\n/***/ },\n/* 22 */\n/***/ function(module, exports) {\n\n\t/**\n\t * http://www.codeproject.com/Tips/407172/Connected-Component-Labeling-and-Vectorization\n\t */\n\t\"use strict\";\n\t\n\tObject.defineProperty(exports, \"__esModule\", {\n\t value: true\n\t});\n\tvar Tracer = {\n\t searchDirections: [[0, 1], [1, 1], [1, 0], [1, -1], [0, -1], [-1, -1], [-1, 0], [-1, 1]],\n\t create: function create(imageWrapper, labelWrapper) {\n\t var imageData = imageWrapper.data,\n\t labelData = labelWrapper.data,\n\t searchDirections = this.searchDirections,\n\t width = imageWrapper.size.x,\n\t pos;\n\t\n\t function _trace(current, color, label, edgelabel) {\n\t var i, y, x;\n\t\n\t for (i = 0; i < 7; i++) {\n\t y = current.cy + searchDirections[current.dir][0];\n\t x = current.cx + searchDirections[current.dir][1];\n\t pos = y * width + x;\n\t if (imageData[pos] === color && (labelData[pos] === 0 || labelData[pos] === label)) {\n\t labelData[pos] = label;\n\t current.cy = y;\n\t current.cx = x;\n\t return true;\n\t } else {\n\t if (labelData[pos] === 0) {\n\t labelData[pos] = edgelabel;\n\t }\n\t current.dir = (current.dir + 1) % 8;\n\t }\n\t }\n\t return false;\n\t }\n\t\n\t function vertex2D(x, y, dir) {\n\t return {\n\t dir: dir,\n\t x: x,\n\t y: y,\n\t next: null,\n\t prev: null\n\t };\n\t }\n\t\n\t function _contourTracing(sy, sx, label, color, edgelabel) {\n\t var Fv = null,\n\t Cv,\n\t P,\n\t ldir,\n\t current = {\n\t cx: sx,\n\t cy: sy,\n\t dir: 0\n\t };\n\t\n\t if (_trace(current, color, label, edgelabel)) {\n\t Fv = vertex2D(sx, sy, current.dir);\n\t Cv = Fv;\n\t ldir = current.dir;\n\t P = vertex2D(current.cx, current.cy, 0);\n\t P.prev = Cv;\n\t Cv.next = P;\n\t P.next = null;\n\t Cv = P;\n\t do {\n\t current.dir = (current.dir + 6) % 8;\n\t _trace(current, color, label, edgelabel);\n\t if (ldir != current.dir) {\n\t Cv.dir = current.dir;\n\t P = vertex2D(current.cx, current.cy, 0);\n\t P.prev = Cv;\n\t Cv.next = P;\n\t P.next = null;\n\t Cv = P;\n\t } else {\n\t Cv.dir = ldir;\n\t Cv.x = current.cx;\n\t Cv.y = current.cy;\n\t }\n\t ldir = current.dir;\n\t } while (current.cx != sx || current.cy != sy);\n\t Fv.prev = Cv.prev;\n\t Cv.prev.next = Fv;\n\t }\n\t return Fv;\n\t }\n\t\n\t return {\n\t trace: function trace(current, color, label, edgelabel) {\n\t return _trace(current, color, label, edgelabel);\n\t },\n\t contourTracing: function contourTracing(sy, sx, label, color, edgelabel) {\n\t return _contourTracing(sy, sx, label, color, edgelabel);\n\t }\n\t };\n\t }\n\t};\n\t\n\texports[\"default\"] = Tracer;\n\tmodule.exports = exports[\"default\"];\n\n/***/ },\n/* 23 */\n/***/ function(module, exports) {\n\n\t/* @preserve ASM BEGIN */\n\t\"use strict\";\n\t\n\tObject.defineProperty(exports, \"__esModule\", {\n\t value: true\n\t});\n\tfunction Skeletonizer(stdlib, foreign, buffer) {\n\t \"use asm\";\n\t\n\t var images = new stdlib.Uint8Array(buffer),\n\t size = foreign.size | 0,\n\t imul = stdlib.Math.imul;\n\t\n\t function erode(inImagePtr, outImagePtr) {\n\t inImagePtr = inImagePtr | 0;\n\t outImagePtr = outImagePtr | 0;\n\t\n\t var v = 0,\n\t u = 0,\n\t sum = 0,\n\t yStart1 = 0,\n\t yStart2 = 0,\n\t xStart1 = 0,\n\t xStart2 = 0,\n\t offset = 0;\n\t\n\t for (v = 1; (v | 0) < (size - 1 | 0); v = v + 1 | 0) {\n\t offset = offset + size | 0;\n\t for (u = 1; (u | 0) < (size - 1 | 0); u = u + 1 | 0) {\n\t yStart1 = offset - size | 0;\n\t yStart2 = offset + size | 0;\n\t xStart1 = u - 1 | 0;\n\t xStart2 = u + 1 | 0;\n\t sum = (images[inImagePtr + yStart1 + xStart1 | 0] | 0) + (images[inImagePtr + yStart1 + xStart2 | 0] | 0) + (images[inImagePtr + offset + u | 0] | 0) + (images[inImagePtr + yStart2 + xStart1 | 0] | 0) + (images[inImagePtr + yStart2 + xStart2 | 0] | 0) | 0;\n\t if ((sum | 0) == (5 | 0)) {\n\t images[outImagePtr + offset + u | 0] = 1;\n\t } else {\n\t images[outImagePtr + offset + u | 0] = 0;\n\t }\n\t }\n\t }\n\t return;\n\t }\n\t\n\t function subtract(aImagePtr, bImagePtr, outImagePtr) {\n\t aImagePtr = aImagePtr | 0;\n\t bImagePtr = bImagePtr | 0;\n\t outImagePtr = outImagePtr | 0;\n\t\n\t var length = 0;\n\t\n\t length = imul(size, size) | 0;\n\t\n\t while ((length | 0) > 0) {\n\t length = length - 1 | 0;\n\t images[outImagePtr + length | 0] = (images[aImagePtr + length | 0] | 0) - (images[bImagePtr + length | 0] | 0) | 0;\n\t }\n\t }\n\t\n\t function bitwiseOr(aImagePtr, bImagePtr, outImagePtr) {\n\t aImagePtr = aImagePtr | 0;\n\t bImagePtr = bImagePtr | 0;\n\t outImagePtr = outImagePtr | 0;\n\t\n\t var length = 0;\n\t\n\t length = imul(size, size) | 0;\n\t\n\t while ((length | 0) > 0) {\n\t length = length - 1 | 0;\n\t images[outImagePtr + length | 0] = images[aImagePtr + length | 0] | 0 | (images[bImagePtr + length | 0] | 0) | 0;\n\t }\n\t }\n\t\n\t function countNonZero(imagePtr) {\n\t imagePtr = imagePtr | 0;\n\t\n\t var sum = 0,\n\t length = 0;\n\t\n\t length = imul(size, size) | 0;\n\t\n\t while ((length | 0) > 0) {\n\t length = length - 1 | 0;\n\t sum = (sum | 0) + (images[imagePtr + length | 0] | 0) | 0;\n\t }\n\t\n\t return sum | 0;\n\t }\n\t\n\t function init(imagePtr, value) {\n\t imagePtr = imagePtr | 0;\n\t value = value | 0;\n\t\n\t var length = 0;\n\t\n\t length = imul(size, size) | 0;\n\t\n\t while ((length | 0) > 0) {\n\t length = length - 1 | 0;\n\t images[imagePtr + length | 0] = value;\n\t }\n\t }\n\t\n\t function dilate(inImagePtr, outImagePtr) {\n\t inImagePtr = inImagePtr | 0;\n\t outImagePtr = outImagePtr | 0;\n\t\n\t var v = 0,\n\t u = 0,\n\t sum = 0,\n\t yStart1 = 0,\n\t yStart2 = 0,\n\t xStart1 = 0,\n\t xStart2 = 0,\n\t offset = 0;\n\t\n\t for (v = 1; (v | 0) < (size - 1 | 0); v = v + 1 | 0) {\n\t offset = offset + size | 0;\n\t for (u = 1; (u | 0) < (size - 1 | 0); u = u + 1 | 0) {\n\t yStart1 = offset - size | 0;\n\t yStart2 = offset + size | 0;\n\t xStart1 = u - 1 | 0;\n\t xStart2 = u + 1 | 0;\n\t sum = (images[inImagePtr + yStart1 + xStart1 | 0] | 0) + (images[inImagePtr + yStart1 + xStart2 | 0] | 0) + (images[inImagePtr + offset + u | 0] | 0) + (images[inImagePtr + yStart2 + xStart1 | 0] | 0) + (images[inImagePtr + yStart2 + xStart2 | 0] | 0) | 0;\n\t if ((sum | 0) > (0 | 0)) {\n\t images[outImagePtr + offset + u | 0] = 1;\n\t } else {\n\t images[outImagePtr + offset + u | 0] = 0;\n\t }\n\t }\n\t }\n\t return;\n\t }\n\t\n\t function memcpy(srcImagePtr, dstImagePtr) {\n\t srcImagePtr = srcImagePtr | 0;\n\t dstImagePtr = dstImagePtr | 0;\n\t\n\t var length = 0;\n\t\n\t length = imul(size, size) | 0;\n\t\n\t while ((length | 0) > 0) {\n\t length = length - 1 | 0;\n\t images[dstImagePtr + length | 0] = images[srcImagePtr + length | 0] | 0;\n\t }\n\t }\n\t\n\t function zeroBorder(imagePtr) {\n\t imagePtr = imagePtr | 0;\n\t\n\t var x = 0,\n\t y = 0;\n\t\n\t for (x = 0; (x | 0) < (size - 1 | 0); x = x + 1 | 0) {\n\t images[imagePtr + x | 0] = 0;\n\t images[imagePtr + y | 0] = 0;\n\t y = y + size - 1 | 0;\n\t images[imagePtr + y | 0] = 0;\n\t y = y + 1 | 0;\n\t }\n\t for (x = 0; (x | 0) < (size | 0); x = x + 1 | 0) {\n\t images[imagePtr + y | 0] = 0;\n\t y = y + 1 | 0;\n\t }\n\t }\n\t\n\t function skeletonize() {\n\t var subImagePtr = 0,\n\t erodedImagePtr = 0,\n\t tempImagePtr = 0,\n\t skelImagePtr = 0,\n\t sum = 0,\n\t done = 0;\n\t\n\t erodedImagePtr = imul(size, size) | 0;\n\t tempImagePtr = erodedImagePtr + erodedImagePtr | 0;\n\t skelImagePtr = tempImagePtr + erodedImagePtr | 0;\n\t\n\t // init skel-image\n\t init(skelImagePtr, 0);\n\t zeroBorder(subImagePtr);\n\t\n\t do {\n\t erode(subImagePtr, erodedImagePtr);\n\t dilate(erodedImagePtr, tempImagePtr);\n\t subtract(subImagePtr, tempImagePtr, tempImagePtr);\n\t bitwiseOr(skelImagePtr, tempImagePtr, skelImagePtr);\n\t memcpy(erodedImagePtr, subImagePtr);\n\t sum = countNonZero(subImagePtr) | 0;\n\t done = (sum | 0) == 0 | 0;\n\t } while (!done);\n\t }\n\t\n\t return {\n\t skeletonize: skeletonize\n\t };\n\t}\n\t/* @preserve ASM END */\n\t\n\texports[\"default\"] = Skeletonizer;\n\tmodule.exports = exports[\"default\"];\n\n/***/ },\n/* 24 */\n/***/ function(module, exports) {\n\n\t\"use strict\";\n\t\n\tObject.defineProperty(exports, \"__esModule\", {\n\t value: true\n\t});\n\texports[\"default\"] = {\n\t drawRect: function drawRect(pos, size, ctx, style) {\n\t ctx.strokeStyle = style.color;\n\t ctx.fillStyle = style.color;\n\t ctx.lineWidth = 1;\n\t ctx.beginPath();\n\t ctx.strokeRect(pos.x, pos.y, size.x, size.y);\n\t },\n\t drawPath: function drawPath(path, def, ctx, style) {\n\t ctx.strokeStyle = style.color;\n\t ctx.fillStyle = style.color;\n\t ctx.lineWidth = style.lineWidth;\n\t ctx.beginPath();\n\t ctx.moveTo(path[0][def.x], path[0][def.y]);\n\t for (var j = 1; j < path.length; j++) {\n\t ctx.lineTo(path[j][def.x], path[j][def.y]);\n\t }\n\t ctx.closePath();\n\t ctx.stroke();\n\t },\n\t drawImage: function drawImage(imageData, size, ctx) {\n\t var canvasData = ctx.getImageData(0, 0, size.x, size.y),\n\t data = canvasData.data,\n\t imageDataPos = imageData.length,\n\t canvasDataPos = data.length,\n\t value;\n\t\n\t if (canvasDataPos / imageDataPos !== 4) {\n\t return false;\n\t }\n\t while (imageDataPos--) {\n\t value = imageData[imageDataPos];\n\t data[--canvasDataPos] = 255;\n\t data[--canvasDataPos] = value;\n\t data[--canvasDataPos] = value;\n\t data[--canvasDataPos] = value;\n\t }\n\t ctx.putImageData(canvasData, 0, 0);\n\t return true;\n\t }\n\t};\n\tmodule.exports = exports[\"default\"];\n\n/***/ },\n/* 25 */\n/***/ function(module, exports, __webpack_require__) {\n\n\t'use strict';\n\t\n\tObject.defineProperty(exports, '__esModule', {\n\t value: true\n\t});\n\t\n\tfunction _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }\n\t\n\tvar _bresenham = __webpack_require__(26);\n\t\n\tvar _bresenham2 = _interopRequireDefault(_bresenham);\n\t\n\tvar _image_debug = __webpack_require__(24);\n\t\n\tvar _image_debug2 = _interopRequireDefault(_image_debug);\n\t\n\tvar _code_128_reader = __webpack_require__(27);\n\t\n\tvar _code_128_reader2 = _interopRequireDefault(_code_128_reader);\n\t\n\tvar _ean_reader = __webpack_require__(29);\n\t\n\tvar _ean_reader2 = _interopRequireDefault(_ean_reader);\n\t\n\tvar _code_39_reader = __webpack_require__(30);\n\t\n\tvar _code_39_reader2 = _interopRequireDefault(_code_39_reader);\n\t\n\tvar _code_39_vin_reader = __webpack_require__(31);\n\t\n\tvar _code_39_vin_reader2 = _interopRequireDefault(_code_39_vin_reader);\n\t\n\tvar _codabar_reader = __webpack_require__(32);\n\t\n\tvar _codabar_reader2 = _interopRequireDefault(_codabar_reader);\n\t\n\tvar _upc_reader = __webpack_require__(33);\n\t\n\tvar _upc_reader2 = _interopRequireDefault(_upc_reader);\n\t\n\tvar _ean_8_reader = __webpack_require__(34);\n\t\n\tvar _ean_8_reader2 = _interopRequireDefault(_ean_8_reader);\n\t\n\tvar _upc_e_reader = __webpack_require__(35);\n\t\n\tvar _upc_e_reader2 = _interopRequireDefault(_upc_e_reader);\n\t\n\tvar _i2of5_reader = __webpack_require__(36);\n\t\n\tvar _i2of5_reader2 = _interopRequireDefault(_i2of5_reader);\n\t\n\tvar readers = {\n\t code_128_reader: _code_128_reader2['default'],\n\t ean_reader: _ean_reader2['default'],\n\t ean_8_reader: _ean_8_reader2['default'],\n\t code_39_reader: _code_39_reader2['default'],\n\t code_39_vin_reader: _code_39_vin_reader2['default'],\n\t codabar_reader: _codabar_reader2['default'],\n\t upc_reader: _upc_reader2['default'],\n\t upc_e_reader: _upc_e_reader2['default'],\n\t i2of5_reader: _i2of5_reader2['default']\n\t};\n\texports['default'] = {\n\t create: function create(config, inputImageWrapper) {\n\t var _canvas = {\n\t ctx: {\n\t frequency: null,\n\t pattern: null,\n\t overlay: null\n\t },\n\t dom: {\n\t frequency: null,\n\t pattern: null,\n\t overlay: null\n\t }\n\t },\n\t _barcodeReaders = [];\n\t\n\t initCanvas();\n\t initReaders();\n\t initConfig();\n\t\n\t function initCanvas() {\n\t if (typeof document !== 'undefined') {\n\t var $debug = document.querySelector(\"#debug.detection\");\n\t _canvas.dom.frequency = document.querySelector(\"canvas.frequency\");\n\t if (!_canvas.dom.frequency) {\n\t _canvas.dom.frequency = document.createElement(\"canvas\");\n\t _canvas.dom.frequency.className = \"frequency\";\n\t if ($debug) {\n\t $debug.appendChild(_canvas.dom.frequency);\n\t }\n\t }\n\t _canvas.ctx.frequency = _canvas.dom.frequency.getContext(\"2d\");\n\t\n\t _canvas.dom.pattern = document.querySelector(\"canvas.patternBuffer\");\n\t if (!_canvas.dom.pattern) {\n\t _canvas.dom.pattern = document.createElement(\"canvas\");\n\t _canvas.dom.pattern.className = \"patternBuffer\";\n\t if ($debug) {\n\t $debug.appendChild(_canvas.dom.pattern);\n\t }\n\t }\n\t _canvas.ctx.pattern = _canvas.dom.pattern.getContext(\"2d\");\n\t\n\t _canvas.dom.overlay = document.querySelector(\"canvas.drawingBuffer\");\n\t if (_canvas.dom.overlay) {\n\t _canvas.ctx.overlay = _canvas.dom.overlay.getContext(\"2d\");\n\t }\n\t }\n\t }\n\t\n\t function initReaders() {\n\t config.readers.forEach(function (readerConfig) {\n\t var reader,\n\t config = {};\n\t\n\t if (typeof readerConfig === 'object') {\n\t reader = readerConfig.format;\n\t config = readerConfig.config;\n\t } else if (typeof readerConfig === 'string') {\n\t reader = readerConfig;\n\t }\n\t _barcodeReaders.push(new readers[reader](config));\n\t });\n\t console.log(\"Registered Readers: \" + _barcodeReaders.map(function (reader) {\n\t return JSON.stringify({ format: reader.FORMAT, config: reader.config });\n\t }).join(', '));\n\t }\n\t\n\t function initConfig() {\n\t if (typeof document !== 'undefined') {\n\t var i,\n\t vis = [{\n\t node: _canvas.dom.frequency,\n\t prop: config.showFrequency\n\t }, {\n\t node: _canvas.dom.pattern,\n\t prop: config.showPattern\n\t }];\n\t\n\t for (i = 0; i < vis.length; i++) {\n\t if (vis[i].prop === true) {\n\t vis[i].node.style.display = \"block\";\n\t } else {\n\t vis[i].node.style.display = \"none\";\n\t }\n\t }\n\t }\n\t }\n\t\n\t /**\n\t * extend the line on both ends\n\t * @param {Array} line\n\t * @param {Number} angle\n\t */\n\t function getExtendedLine(line, angle, ext) {\n\t function extendLine(amount) {\n\t var extension = {\n\t y: amount * Math.sin(angle),\n\t x: amount * Math.cos(angle)\n\t };\n\t\n\t line[0].y -= extension.y;\n\t line[0].x -= extension.x;\n\t line[1].y += extension.y;\n\t line[1].x += extension.x;\n\t }\n\t\n\t // check if inside image\n\t extendLine(ext);\n\t while (ext > 1 && (!inputImageWrapper.inImageWithBorder(line[0], 0) || !inputImageWrapper.inImageWithBorder(line[1], 0))) {\n\t ext -= Math.ceil(ext / 2);\n\t extendLine(-ext);\n\t }\n\t return line;\n\t }\n\t\n\t function getLine(box) {\n\t return [{\n\t x: (box[1][0] - box[0][0]) / 2 + box[0][0],\n\t y: (box[1][1] - box[0][1]) / 2 + box[0][1]\n\t }, {\n\t x: (box[3][0] - box[2][0]) / 2 + box[2][0],\n\t y: (box[3][1] - box[2][1]) / 2 + box[2][1]\n\t }];\n\t }\n\t\n\t function tryDecode(line) {\n\t var result = null,\n\t i,\n\t barcodeLine = _bresenham2['default'].getBarcodeLine(inputImageWrapper, line[0], line[1]);\n\t\n\t if (config.showFrequency) {\n\t _image_debug2['default'].drawPath(line, { x: 'x', y: 'y' }, _canvas.ctx.overlay, { color: 'red', lineWidth: 3 });\n\t _bresenham2['default'].debug.printFrequency(barcodeLine.line, _canvas.dom.frequency);\n\t }\n\t _bresenham2['default'].toBinaryLine(barcodeLine);\n\t if (config.showPattern) {\n\t _bresenham2['default'].debug.printPattern(barcodeLine.line, _canvas.dom.pattern);\n\t }\n\t\n\t for (i = 0; i < _barcodeReaders.length && result === null; i++) {\n\t result = _barcodeReaders[i].decodePattern(barcodeLine.line);\n\t }\n\t if (result === null) {\n\t return null;\n\t }\n\t return {\n\t codeResult: result,\n\t barcodeLine: barcodeLine\n\t };\n\t }\n\t\n\t /**\n\t * This method slices the given area apart and tries to detect a barcode-pattern\n\t * for each slice. It returns the decoded barcode, or null if nothing was found\n\t * @param {Array} box\n\t * @param {Array} line\n\t * @param {Number} lineAngle\n\t */\n\t function tryDecodeBruteForce(box, line, lineAngle) {\n\t var sideLength = Math.sqrt(Math.pow(box[1][0] - box[0][0], 2) + Math.pow(box[1][1] - box[0][1], 2)),\n\t i,\n\t slices = 16,\n\t result = null,\n\t dir,\n\t extension,\n\t xdir = Math.sin(lineAngle),\n\t ydir = Math.cos(lineAngle);\n\t\n\t for (i = 1; i < slices && result === null; i++) {\n\t // move line perpendicular to angle\n\t dir = sideLength / slices * i * (i % 2 === 0 ? -1 : 1);\n\t extension = {\n\t y: dir * xdir,\n\t x: dir * ydir\n\t };\n\t line[0].y += extension.x;\n\t line[0].x -= extension.y;\n\t line[1].y += extension.x;\n\t line[1].x -= extension.y;\n\t\n\t result = tryDecode(line);\n\t }\n\t return result;\n\t }\n\t\n\t function getLineLength(line) {\n\t return Math.sqrt(Math.pow(Math.abs(line[1].y - line[0].y), 2) + Math.pow(Math.abs(line[1].x - line[0].x), 2));\n\t }\n\t\n\t /**\n\t * With the help of the configured readers (Code128 or EAN) this function tries to detect a\n\t * valid barcode pattern within the given area.\n\t * @param {Object} box The area to search in\n\t * @returns {Object} the result {codeResult, line, angle, pattern, threshold}\n\t */\n\t function _decodeFromBoundingBox(box) {\n\t var line,\n\t lineAngle,\n\t ctx = _canvas.ctx.overlay,\n\t result,\n\t lineLength;\n\t\n\t if (config.drawBoundingBox && ctx) {\n\t _image_debug2['default'].drawPath(box, { x: 0, y: 1 }, ctx, { color: \"blue\", lineWidth: 2 });\n\t }\n\t\n\t line = getLine(box);\n\t lineLength = getLineLength(line);\n\t lineAngle = Math.atan2(line[1].y - line[0].y, line[1].x - line[0].x);\n\t line = getExtendedLine(line, lineAngle, Math.floor(lineLength * 0.1));\n\t if (line === null) {\n\t return null;\n\t }\n\t\n\t result = tryDecode(line);\n\t if (result === null) {\n\t result = tryDecodeBruteForce(box, line, lineAngle);\n\t }\n\t\n\t if (result === null) {\n\t return null;\n\t }\n\t\n\t if (result && config.drawScanline && ctx) {\n\t _image_debug2['default'].drawPath(line, { x: 'x', y: 'y' }, ctx, { color: 'red', lineWidth: 3 });\n\t }\n\t\n\t return {\n\t codeResult: result.codeResult,\n\t line: line,\n\t angle: lineAngle,\n\t pattern: result.barcodeLine.line,\n\t threshold: result.barcodeLine.threshold\n\t };\n\t }\n\t\n\t return {\n\t decodeFromBoundingBox: function decodeFromBoundingBox(box) {\n\t return _decodeFromBoundingBox(box);\n\t },\n\t decodeFromBoundingBoxes: function decodeFromBoundingBoxes(boxes) {\n\t var i, result;\n\t for (i = 0; i < boxes.length; i++) {\n\t result = _decodeFromBoundingBox(boxes[i]);\n\t if (result && result.codeResult) {\n\t result.box = boxes[i];\n\t return result;\n\t }\n\t }\n\t },\n\t setReaders: function setReaders(readers) {\n\t config.readers = readers;\n\t _barcodeReaders.length = 0;\n\t initReaders();\n\t }\n\t };\n\t }\n\t};\n\tmodule.exports = exports['default'];\n\n/***/ },\n/* 26 */\n/***/ function(module, exports, __webpack_require__) {\n\n\t'use strict';\n\t\n\tObject.defineProperty(exports, '__esModule', {\n\t value: true\n\t});\n\t\n\tfunction _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }\n\t\n\tvar _cv_utils = __webpack_require__(7);\n\t\n\tvar _cv_utils2 = _interopRequireDefault(_cv_utils);\n\t\n\tvar _image_wrapper = __webpack_require__(5);\n\t\n\tvar _image_wrapper2 = _interopRequireDefault(_image_wrapper);\n\t\n\tvar Bresenham = {};\n\t\n\tvar Slope = {\n\t DIR: {\n\t UP: 1,\n\t DOWN: -1\n\t }\n\t};\n\t/**\n\t * Scans a line of the given image from point p1 to p2 and returns a result object containing\n\t * gray-scale values (0-255) of the underlying pixels in addition to the min\n\t * and max values.\n\t * @param {Object} imageWrapper\n\t * @param {Object} p1 The start point {x,y}\n\t * @param {Object} p2 The end point {x,y}\n\t * @returns {line, min, max}\n\t */\n\tBresenham.getBarcodeLine = function (imageWrapper, p1, p2) {\n\t var x0 = p1.x | 0,\n\t y0 = p1.y | 0,\n\t x1 = p2.x | 0,\n\t y1 = p2.y | 0,\n\t steep = Math.abs(y1 - y0) > Math.abs(x1 - x0),\n\t deltax,\n\t deltay,\n\t error,\n\t ystep,\n\t y,\n\t tmp,\n\t x,\n\t line = [],\n\t imageData = imageWrapper.data,\n\t width = imageWrapper.size.x,\n\t sum = 0,\n\t val,\n\t min = 255,\n\t max = 0;\n\t\n\t function read(a, b) {\n\t val = imageData[b * width + a];\n\t sum += val;\n\t min = val < min ? val : min;\n\t max = val > max ? val : max;\n\t line.push(val);\n\t }\n\t\n\t if (steep) {\n\t tmp = x0;\n\t x0 = y0;\n\t y0 = tmp;\n\t\n\t tmp = x1;\n\t x1 = y1;\n\t y1 = tmp;\n\t }\n\t if (x0 > x1) {\n\t tmp = x0;\n\t x0 = x1;\n\t x1 = tmp;\n\t\n\t tmp = y0;\n\t y0 = y1;\n\t y1 = tmp;\n\t }\n\t deltax = x1 - x0;\n\t deltay = Math.abs(y1 - y0);\n\t error = deltax / 2 | 0;\n\t y = y0;\n\t ystep = y0 < y1 ? 1 : -1;\n\t for (x = x0; x < x1; x++) {\n\t if (steep) {\n\t read(y, x);\n\t } else {\n\t read(x, y);\n\t }\n\t error = error - deltay;\n\t if (error < 0) {\n\t y = y + ystep;\n\t error = error + deltax;\n\t }\n\t }\n\t\n\t return {\n\t line: line,\n\t min: min,\n\t max: max\n\t };\n\t};\n\t\n\tBresenham.toOtsuBinaryLine = function (result) {\n\t var line = result.line,\n\t image = new _image_wrapper2['default']({ x: line.length - 1, y: 1 }, line),\n\t threshold = _cv_utils2['default'].determineOtsuThreshold(image, 5);\n\t\n\t line = _cv_utils2['default'].sharpenLine(line);\n\t _cv_utils2['default'].thresholdImage(image, threshold);\n\t\n\t return {\n\t line: line,\n\t threshold: threshold\n\t };\n\t};\n\t\n\t/**\n\t * Converts the result from getBarcodeLine into a binary representation\n\t * also considering the frequency and slope of the signal for more robust results\n\t * @param {Object} result {line, min, max}\n\t */\n\tBresenham.toBinaryLine = function (result) {\n\t\n\t var min = result.min,\n\t max = result.max,\n\t line = result.line,\n\t slope,\n\t slope2,\n\t center = min + (max - min) / 2,\n\t extrema = [],\n\t currentDir,\n\t dir,\n\t threshold = (max - min) / 12,\n\t rThreshold = -threshold,\n\t i,\n\t j;\n\t\n\t // 1. find extrema\n\t currentDir = line[0] > center ? Slope.DIR.UP : Slope.DIR.DOWN;\n\t extrema.push({\n\t pos: 0,\n\t val: line[0]\n\t });\n\t for (i = 0; i < line.length - 2; i++) {\n\t slope = line[i + 1] - line[i];\n\t slope2 = line[i + 2] - line[i + 1];\n\t if (slope + slope2 < rThreshold && line[i + 1] < center * 1.5) {\n\t dir = Slope.DIR.DOWN;\n\t } else if (slope + slope2 > threshold && line[i + 1] > center * 0.5) {\n\t dir = Slope.DIR.UP;\n\t } else {\n\t dir = currentDir;\n\t }\n\t\n\t if (currentDir !== dir) {\n\t extrema.push({\n\t pos: i,\n\t val: line[i]\n\t });\n\t currentDir = dir;\n\t }\n\t }\n\t extrema.push({\n\t pos: line.length,\n\t val: line[line.length - 1]\n\t });\n\t\n\t for (j = extrema[0].pos; j < extrema[1].pos; j++) {\n\t line[j] = line[j] > center ? 0 : 1;\n\t }\n\t\n\t // iterate over extrema and convert to binary based on avg between minmax\n\t for (i = 1; i < extrema.length - 1; i++) {\n\t if (extrema[i + 1].val > extrema[i].val) {\n\t threshold = extrema[i].val + (extrema[i + 1].val - extrema[i].val) / 3 * 2 | 0;\n\t } else {\n\t threshold = extrema[i + 1].val + (extrema[i].val - extrema[i + 1].val) / 3 | 0;\n\t }\n\t\n\t for (j = extrema[i].pos; j < extrema[i + 1].pos; j++) {\n\t line[j] = line[j] > threshold ? 0 : 1;\n\t }\n\t }\n\t\n\t return {\n\t line: line,\n\t threshold: threshold\n\t };\n\t};\n\t\n\t/**\n\t * Used for development only\n\t */\n\tBresenham.debug = {\n\t printFrequency: function printFrequency(line, canvas) {\n\t var i,\n\t ctx = canvas.getContext(\"2d\");\n\t canvas.width = line.length;\n\t canvas.height = 256;\n\t\n\t ctx.beginPath();\n\t ctx.strokeStyle = \"blue\";\n\t for (i = 0; i < line.length; i++) {\n\t ctx.moveTo(i, 255);\n\t ctx.lineTo(i, 255 - line[i]);\n\t }\n\t ctx.stroke();\n\t ctx.closePath();\n\t },\n\t\n\t printPattern: function printPattern(line, canvas) {\n\t var ctx = canvas.getContext(\"2d\"),\n\t i;\n\t\n\t canvas.width = line.length;\n\t ctx.fillColor = \"black\";\n\t for (i = 0; i < line.length; i++) {\n\t if (line[i] === 1) {\n\t ctx.fillRect(i, 0, 1, 100);\n\t }\n\t }\n\t }\n\t};\n\t\n\texports['default'] = Bresenham;\n\tmodule.exports = exports['default'];\n\n/***/ },\n/* 27 */\n/***/ function(module, exports, __webpack_require__) {\n\n\t\"use strict\";\n\t\n\tObject.defineProperty(exports, \"__esModule\", {\n\t value: true\n\t});\n\t\n\tfunction _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { \"default\": obj }; }\n\t\n\tvar _barcode_reader = __webpack_require__(28);\n\t\n\tvar _barcode_reader2 = _interopRequireDefault(_barcode_reader);\n\t\n\tfunction Code128Reader() {\n\t _barcode_reader2[\"default\"].call(this);\n\t}\n\t\n\tvar properties = {\n\t CODE_SHIFT: { value: 98 },\n\t CODE_C: { value: 99 },\n\t CODE_B: { value: 100 },\n\t CODE_A: { value: 101 },\n\t START_CODE_A: { value: 103 },\n\t START_CODE_B: { value: 104 },\n\t START_CODE_C: { value: 105 },\n\t STOP_CODE: { value: 106 },\n\t MODULO: { value: 11 },\n\t CODE_PATTERN: { value: [[2, 1, 2, 2, 2, 2], [2, 2, 2, 1, 2, 2], [2, 2, 2, 2, 2, 1], [1, 2, 1, 2, 2, 3], [1, 2, 1, 3, 2, 2], [1, 3, 1, 2, 2, 2], [1, 2, 2, 2, 1, 3], [1, 2, 2, 3, 1, 2], [1, 3, 2, 2, 1, 2], [2, 2, 1, 2, 1, 3], [2, 2, 1, 3, 1, 2], [2, 3, 1, 2, 1, 2], [1, 1, 2, 2, 3, 2], [1, 2, 2, 1, 3, 2], [1, 2, 2, 2, 3, 1], [1, 1, 3, 2, 2, 2], [1, 2, 3, 1, 2, 2], [1, 2, 3, 2, 2, 1], [2, 2, 3, 2, 1, 1], [2, 2, 1, 1, 3, 2], [2, 2, 1, 2, 3, 1], [2, 1, 3, 2, 1, 2], [2, 2, 3, 1, 1, 2], [3, 1, 2, 1, 3, 1], [3, 1, 1, 2, 2, 2], [3, 2, 1, 1, 2, 2], [3, 2, 1, 2, 2, 1], [3, 1, 2, 2, 1, 2], [3, 2, 2, 1, 1, 2], [3, 2, 2, 2, 1, 1], [2, 1, 2, 1, 2, 3], [2, 1, 2, 3, 2, 1], [2, 3, 2, 1, 2, 1], [1, 1, 1, 3, 2, 3], [1, 3, 1, 1, 2, 3], [1, 3, 1, 3, 2, 1], [1, 1, 2, 3, 1, 3], [1, 3, 2, 1, 1, 3], [1, 3, 2, 3, 1, 1], [2, 1, 1, 3, 1, 3], [2, 3, 1, 1, 1, 3], [2, 3, 1, 3, 1, 1], [1, 1, 2, 1, 3, 3], [1, 1, 2, 3, 3, 1], [1, 3, 2, 1, 3, 1], [1, 1, 3, 1, 2, 3], [1, 1, 3, 3, 2, 1], [1, 3, 3, 1, 2, 1], [3, 1, 3, 1, 2, 1], [2, 1, 1, 3, 3, 1], [2, 3, 1, 1, 3, 1], [2, 1, 3, 1, 1, 3], [2, 1, 3, 3, 1, 1], [2, 1, 3, 1, 3, 1], [3, 1, 1, 1, 2, 3], [3, 1, 1, 3, 2, 1], [3, 3, 1, 1, 2, 1], [3, 1, 2, 1, 1, 3], [3, 1, 2, 3, 1, 1], [3, 3, 2, 1, 1, 1], [3, 1, 4, 1, 1, 1], [2, 2, 1, 4, 1, 1], [4, 3, 1, 1, 1, 1], [1, 1, 1, 2, 2, 4], [1, 1, 1, 4, 2, 2], [1, 2, 1, 1, 2, 4], [1, 2, 1, 4, 2, 1], [1, 4, 1, 1, 2, 2], [1, 4, 1, 2, 2, 1], [1, 1, 2, 2, 1, 4], [1, 1, 2, 4, 1, 2], [1, 2, 2, 1, 1, 4], [1, 2, 2, 4, 1, 1], [1, 4, 2, 1, 1, 2], [1, 4, 2, 2, 1, 1], [2, 4, 1, 2, 1, 1], [2, 2, 1, 1, 1, 4], [4, 1, 3, 1, 1, 1], [2, 4, 1, 1, 1, 2], [1, 3, 4, 1, 1, 1], [1, 1, 1, 2, 4, 2], [1, 2, 1, 1, 4, 2], [1, 2, 1, 2, 4, 1], [1, 1, 4, 2, 1, 2], [1, 2, 4, 1, 1, 2], [1, 2, 4, 2, 1, 1], [4, 1, 1, 2, 1, 2], [4, 2, 1, 1, 1, 2], [4, 2, 1, 2, 1, 1], [2, 1, 2, 1, 4, 1], [2, 1, 4, 1, 2, 1], [4, 1, 2, 1, 2, 1], [1, 1, 1, 1, 4, 3], [1, 1, 1, 3, 4, 1], [1, 3, 1, 1, 4, 1], [1, 1, 4, 1, 1, 3], [1, 1, 4, 3, 1, 1], [4, 1, 1, 1, 1, 3], [4, 1, 1, 3, 1, 1], [1, 1, 3, 1, 4, 1], [1, 1, 4, 1, 3, 1], [3, 1, 1, 1, 4, 1], [4, 1, 1, 1, 3, 1], [2, 1, 1, 4, 1, 2], [2, 1, 1, 2, 1, 4], [2, 1, 1, 2, 3, 2], [2, 3, 3, 1, 1, 1, 2]] },\n\t SINGLE_CODE_ERROR: { value: 1 },\n\t AVG_CODE_ERROR: { value: 0.5 },\n\t FORMAT: { value: \"code_128\", writeable: false }\n\t};\n\t\n\tCode128Reader.prototype = Object.create(_barcode_reader2[\"default\"].prototype, properties);\n\tCode128Reader.prototype.constructor = Code128Reader;\n\t\n\tCode128Reader.prototype._decodeCode = function (start) {\n\t var counter = [0, 0, 0, 0, 0, 0],\n\t i,\n\t self = this,\n\t offset = start,\n\t isWhite = !self._row[offset],\n\t counterPos = 0,\n\t bestMatch = {\n\t error: Number.MAX_VALUE,\n\t code: -1,\n\t start: start,\n\t end: start\n\t },\n\t code,\n\t error,\n\t normalized;\n\t\n\t for (i = offset; i < self._row.length; i++) {\n\t if (self._row[i] ^ isWhite) {\n\t counter[counterPos]++;\n\t } else {\n\t if (counterPos === counter.length - 1) {\n\t normalized = self._normalize(counter);\n\t if (normalized) {\n\t for (code = 0; code < self.CODE_PATTERN.length; code++) {\n\t error = self._matchPattern(normalized, self.CODE_PATTERN[code]);\n\t if (error < bestMatch.error) {\n\t bestMatch.code = code;\n\t bestMatch.error = error;\n\t }\n\t }\n\t bestMatch.end = i;\n\t return bestMatch;\n\t }\n\t } else {\n\t counterPos++;\n\t }\n\t counter[counterPos] = 1;\n\t isWhite = !isWhite;\n\t }\n\t }\n\t return null;\n\t};\n\t\n\tCode128Reader.prototype._findStart = function () {\n\t var counter = [0, 0, 0, 0, 0, 0],\n\t i,\n\t self = this,\n\t offset = self._nextSet(self._row),\n\t isWhite = false,\n\t counterPos = 0,\n\t bestMatch = {\n\t error: Number.MAX_VALUE,\n\t code: -1,\n\t start: 0,\n\t end: 0\n\t },\n\t code,\n\t error,\n\t j,\n\t sum,\n\t normalized;\n\t\n\t for (i = offset; i < self._row.length; i++) {\n\t if (self._row[i] ^ isWhite) {\n\t counter[counterPos]++;\n\t } else {\n\t if (counterPos === counter.length - 1) {\n\t sum = 0;\n\t for (j = 0; j < counter.length; j++) {\n\t sum += counter[j];\n\t }\n\t normalized = self._normalize(counter);\n\t if (normalized) {\n\t for (code = self.START_CODE_A; code <= self.START_CODE_C; code++) {\n\t error = self._matchPattern(normalized, self.CODE_PATTERN[code]);\n\t if (error < bestMatch.error) {\n\t bestMatch.code = code;\n\t bestMatch.error = error;\n\t }\n\t }\n\t if (bestMatch.error < self.AVG_CODE_ERROR) {\n\t bestMatch.start = i - sum;\n\t bestMatch.end = i;\n\t return bestMatch;\n\t }\n\t }\n\t\n\t for (j = 0; j < 4; j++) {\n\t counter[j] = counter[j + 2];\n\t }\n\t counter[4] = 0;\n\t counter[5] = 0;\n\t counterPos--;\n\t } else {\n\t counterPos++;\n\t }\n\t counter[counterPos] = 1;\n\t isWhite = !isWhite;\n\t }\n\t }\n\t return null;\n\t};\n\t\n\tCode128Reader.prototype._decode = function () {\n\t var self = this,\n\t startInfo = self._findStart(),\n\t code = null,\n\t done = false,\n\t result = [],\n\t multiplier = 0,\n\t checksum = 0,\n\t codeset,\n\t rawResult = [],\n\t decodedCodes = [],\n\t shiftNext = false,\n\t unshift,\n\t lastCharacterWasPrintable;\n\t\n\t if (startInfo === null) {\n\t return null;\n\t }\n\t code = {\n\t code: startInfo.code,\n\t start: startInfo.start,\n\t end: startInfo.end\n\t };\n\t decodedCodes.push(code);\n\t checksum = code.code;\n\t switch (code.code) {\n\t case self.START_CODE_A:\n\t codeset = self.CODE_A;\n\t break;\n\t case self.START_CODE_B:\n\t codeset = self.CODE_B;\n\t break;\n\t case self.START_CODE_C:\n\t codeset = self.CODE_C;\n\t break;\n\t default:\n\t return null;\n\t }\n\t\n\t while (!done) {\n\t unshift = shiftNext;\n\t shiftNext = false;\n\t code = self._decodeCode(code.end);\n\t if (code !== null) {\n\t if (code.code !== self.STOP_CODE) {\n\t rawResult.push(code.code);\n\t multiplier++;\n\t checksum += multiplier * code.code;\n\t }\n\t decodedCodes.push(code);\n\t\n\t switch (codeset) {\n\t case self.CODE_A:\n\t if (code.code < 64) {\n\t result.push(String.fromCharCode(32 + code.code));\n\t } else if (code.code < 96) {\n\t result.push(String.fromCharCode(code.code - 64));\n\t } else {\n\t switch (code.code) {\n\t case self.CODE_SHIFT:\n\t shiftNext = true;\n\t codeset = self.CODE_B;\n\t break;\n\t case self.CODE_B:\n\t codeset = self.CODE_B;\n\t break;\n\t case self.CODE_C:\n\t codeset = self.CODE_C;\n\t break;\n\t case self.STOP_CODE:\n\t done = true;\n\t break;\n\t }\n\t }\n\t break;\n\t case self.CODE_B:\n\t if (code.code < 96) {\n\t result.push(String.fromCharCode(32 + code.code));\n\t } else {\n\t if (code.code != self.STOP_CODE) {\n\t lastCharacterWasPrintable = false;\n\t }\n\t switch (code.code) {\n\t case self.CODE_SHIFT:\n\t shiftNext = true;\n\t codeset = self.CODE_A;\n\t break;\n\t case self.CODE_A:\n\t codeset = self.CODE_A;\n\t break;\n\t case self.CODE_C:\n\t codeset = self.CODE_C;\n\t break;\n\t case self.STOP_CODE:\n\t done = true;\n\t break;\n\t }\n\t }\n\t break;\n\t case self.CODE_C:\n\t if (code.code < 100) {\n\t result.push(code.code < 10 ? \"0\" + code.code : code.code);\n\t }\n\t switch (code.code) {\n\t case self.CODE_A:\n\t codeset = self.CODE_A;\n\t break;\n\t case self.CODE_B:\n\t codeset = self.CODE_B;\n\t break;\n\t case self.STOP_CODE:\n\t done = true;\n\t break;\n\t }\n\t break;\n\t }\n\t } else {\n\t done = true;\n\t }\n\t if (unshift) {\n\t codeset = codeset == self.CODE_A ? self.CODE_B : self.CODE_A;\n\t }\n\t }\n\t\n\t if (code === null) {\n\t return null;\n\t }\n\t\n\t // find end bar\n\t code.end = self._nextUnset(self._row, code.end);\n\t if (!self._verifyTrailingWhitespace(code)) {\n\t return null;\n\t }\n\t\n\t // checksum\n\t // Does not work correctly yet!!! startcode - endcode?\n\t checksum -= multiplier * rawResult[rawResult.length - 1];\n\t if (checksum % 103 != rawResult[rawResult.length - 1]) {\n\t return null;\n\t }\n\t\n\t if (!result.length) {\n\t return null;\n\t }\n\t\n\t // remove last code from result (checksum)\n\t result.splice(result.length - 1, 1);\n\t\n\t return {\n\t code: result.join(\"\"),\n\t start: startInfo.start,\n\t end: code.end,\n\t codeset: codeset,\n\t startInfo: startInfo,\n\t decodedCodes: decodedCodes,\n\t endInfo: code\n\t };\n\t};\n\t\n\t_barcode_reader2[\"default\"].prototype._verifyTrailingWhitespace = function (endInfo) {\n\t var self = this,\n\t trailingWhitespaceEnd;\n\t\n\t trailingWhitespaceEnd = endInfo.end + (endInfo.end - endInfo.start) / 2;\n\t if (trailingWhitespaceEnd < self._row.length) {\n\t if (self._matchRange(endInfo.end, trailingWhitespaceEnd, 0)) {\n\t return endInfo;\n\t }\n\t }\n\t return null;\n\t};\n\t\n\texports[\"default\"] = Code128Reader;\n\tmodule.exports = exports[\"default\"];\n\n/***/ },\n/* 28 */\n/***/ function(module, exports) {\n\n\t'use strict';\n\t\n\tObject.defineProperty(exports, '__esModule', {\n\t value: true\n\t});\n\tfunction BarcodeReader(config) {\n\t this._row = [];\n\t this.config = config || {};\n\t return this;\n\t}\n\t\n\tBarcodeReader.prototype._nextUnset = function (line, start) {\n\t var i;\n\t\n\t if (start === undefined) {\n\t start = 0;\n\t }\n\t for (i = start; i < line.length; i++) {\n\t if (!line[i]) {\n\t return i;\n\t }\n\t }\n\t return line.length;\n\t};\n\t\n\tBarcodeReader.prototype._matchPattern = function (counter, code) {\n\t var i,\n\t error = 0,\n\t singleError = 0,\n\t modulo = this.MODULO,\n\t maxSingleError = this.SINGLE_CODE_ERROR || 1;\n\t\n\t for (i = 0; i < counter.length; i++) {\n\t singleError = Math.abs(code[i] - counter[i]);\n\t if (singleError > maxSingleError) {\n\t return Number.MAX_VALUE;\n\t }\n\t error += singleError;\n\t }\n\t return error / modulo;\n\t};\n\t\n\tBarcodeReader.prototype._nextSet = function (line, offset) {\n\t var i;\n\t\n\t offset = offset || 0;\n\t for (i = offset; i < line.length; i++) {\n\t if (line[i]) {\n\t return i;\n\t }\n\t }\n\t return line.length;\n\t};\n\t\n\tBarcodeReader.prototype._normalize = function (counter, modulo) {\n\t var i,\n\t self = this,\n\t sum = 0,\n\t ratio,\n\t numOnes = 0,\n\t normalized = [],\n\t norm = 0;\n\t\n\t if (!modulo) {\n\t modulo = self.MODULO;\n\t }\n\t for (i = 0; i < counter.length; i++) {\n\t if (counter[i] === 1) {\n\t numOnes++;\n\t } else {\n\t sum += counter[i];\n\t }\n\t }\n\t ratio = sum / (modulo - numOnes);\n\t if (ratio > 1.0) {\n\t for (i = 0; i < counter.length; i++) {\n\t norm = counter[i] === 1 ? counter[i] : counter[i] / ratio;\n\t normalized.push(norm);\n\t }\n\t } else {\n\t ratio = (sum + numOnes) / modulo;\n\t for (i = 0; i < counter.length; i++) {\n\t norm = counter[i] / ratio;\n\t normalized.push(norm);\n\t }\n\t }\n\t return normalized;\n\t};\n\t\n\tBarcodeReader.prototype._matchTrace = function (cmpCounter, epsilon) {\n\t var counter = [],\n\t i,\n\t self = this,\n\t offset = self._nextSet(self._row),\n\t isWhite = !self._row[offset],\n\t counterPos = 0,\n\t bestMatch = {\n\t error: Number.MAX_VALUE,\n\t code: -1,\n\t start: 0\n\t },\n\t error;\n\t\n\t if (cmpCounter) {\n\t for (i = 0; i < cmpCounter.length; i++) {\n\t counter.push(0);\n\t }\n\t for (i = offset; i < self._row.length; i++) {\n\t if (self._row[i] ^ isWhite) {\n\t counter[counterPos]++;\n\t } else {\n\t if (counterPos === counter.length - 1) {\n\t error = self._matchPattern(counter, cmpCounter);\n\t\n\t if (error < epsilon) {\n\t bestMatch.start = i - offset;\n\t bestMatch.end = i;\n\t bestMatch.counter = counter;\n\t return bestMatch;\n\t } else {\n\t return null;\n\t }\n\t } else {\n\t counterPos++;\n\t }\n\t counter[counterPos] = 1;\n\t isWhite = !isWhite;\n\t }\n\t }\n\t } else {\n\t counter.push(0);\n\t for (i = offset; i < self._row.length; i++) {\n\t if (self._row[i] ^ isWhite) {\n\t counter[counterPos]++;\n\t } else {\n\t counterPos++;\n\t counter.push(0);\n\t counter[counterPos] = 1;\n\t isWhite = !isWhite;\n\t }\n\t }\n\t }\n\t\n\t // if cmpCounter was not given\n\t bestMatch.start = offset;\n\t bestMatch.end = self._row.length - 1;\n\t bestMatch.counter = counter;\n\t return bestMatch;\n\t};\n\t\n\tBarcodeReader.prototype.decodePattern = function (pattern) {\n\t var self = this,\n\t result;\n\t\n\t self._row = pattern;\n\t result = self._decode();\n\t if (result === null) {\n\t self._row.reverse();\n\t result = self._decode();\n\t if (result) {\n\t result.direction = BarcodeReader.DIRECTION.REVERSE;\n\t result.start = self._row.length - result.start;\n\t result.end = self._row.length - result.end;\n\t }\n\t } else {\n\t result.direction = BarcodeReader.DIRECTION.FORWARD;\n\t }\n\t if (result) {\n\t result.format = self.FORMAT;\n\t }\n\t return result;\n\t};\n\t\n\tBarcodeReader.prototype._matchRange = function (start, end, value) {\n\t var i;\n\t\n\t start = start < 0 ? 0 : start;\n\t for (i = start; i < end; i++) {\n\t if (this._row[i] !== value) {\n\t return false;\n\t }\n\t }\n\t return true;\n\t};\n\t\n\tBarcodeReader.prototype._fillCounters = function (offset, end, isWhite) {\n\t var self = this,\n\t counterPos = 0,\n\t i,\n\t counters = [];\n\t\n\t isWhite = typeof isWhite !== 'undefined' ? isWhite : true;\n\t offset = typeof offset !== 'undefined' ? offset : self._nextUnset(self._row);\n\t end = end || self._row.length;\n\t\n\t counters[counterPos] = 0;\n\t for (i = offset; i < end; i++) {\n\t if (self._row[i] ^ isWhite) {\n\t counters[counterPos]++;\n\t } else {\n\t counterPos++;\n\t counters[counterPos] = 1;\n\t isWhite = !isWhite;\n\t }\n\t }\n\t return counters;\n\t};\n\t\n\tObject.defineProperty(BarcodeReader.prototype, \"FORMAT\", {\n\t value: 'unknown',\n\t writeable: false\n\t});\n\t\n\tBarcodeReader.DIRECTION = {\n\t FORWARD: 1,\n\t REVERSE: -1\n\t};\n\t\n\tBarcodeReader.Exception = {\n\t StartNotFoundException: \"Start-Info was not found!\",\n\t CodeNotFoundException: \"Code could not be found!\",\n\t PatternNotFoundException: \"Pattern could not be found!\"\n\t};\n\t\n\tBarcodeReader.CONFIG_KEYS = {};\n\t\n\texports['default'] = BarcodeReader;\n\tmodule.exports = exports['default'];\n\n/***/ },\n/* 29 */\n/***/ function(module, exports, __webpack_require__) {\n\n\t\"use strict\";\n\t\n\tObject.defineProperty(exports, \"__esModule\", {\n\t value: true\n\t});\n\t\n\tfunction _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { \"default\": obj }; }\n\t\n\tvar _barcode_reader = __webpack_require__(28);\n\t\n\tvar _barcode_reader2 = _interopRequireDefault(_barcode_reader);\n\t\n\tfunction EANReader(opts) {\n\t _barcode_reader2[\"default\"].call(this, opts);\n\t}\n\t\n\tvar properties = {\n\t CODE_L_START: { value: 0 },\n\t MODULO: { value: 7 },\n\t CODE_G_START: { value: 10 },\n\t START_PATTERN: { value: [1 / 3 * 7, 1 / 3 * 7, 1 / 3 * 7] },\n\t STOP_PATTERN: { value: [1 / 3 * 7, 1 / 3 * 7, 1 / 3 * 7] },\n\t MIDDLE_PATTERN: { value: [1 / 5 * 7, 1 / 5 * 7, 1 / 5 * 7, 1 / 5 * 7, 1 / 5 * 7] },\n\t CODE_PATTERN: { value: [[3, 2, 1, 1], [2, 2, 2, 1], [2, 1, 2, 2], [1, 4, 1, 1], [1, 1, 3, 2], [1, 2, 3, 1], [1, 1, 1, 4], [1, 3, 1, 2], [1, 2, 1, 3], [3, 1, 1, 2], [1, 1, 2, 3], [1, 2, 2, 2], [2, 2, 1, 2], [1, 1, 4, 1], [2, 3, 1, 1], [1, 3, 2, 1], [4, 1, 1, 1], [2, 1, 3, 1], [3, 1, 2, 1], [2, 1, 1, 3]] },\n\t CODE_FREQUENCY: { value: [0, 11, 13, 14, 19, 25, 28, 21, 22, 26] },\n\t SINGLE_CODE_ERROR: { value: 0.67 },\n\t AVG_CODE_ERROR: { value: 0.27 },\n\t FORMAT: { value: \"ean_13\", writeable: false }\n\t};\n\t\n\tEANReader.prototype = Object.create(_barcode_reader2[\"default\"].prototype, properties);\n\tEANReader.prototype.constructor = EANReader;\n\t\n\tEANReader.prototype._decodeCode = function (start, coderange) {\n\t var counter = [0, 0, 0, 0],\n\t i,\n\t self = this,\n\t offset = start,\n\t isWhite = !self._row[offset],\n\t counterPos = 0,\n\t bestMatch = {\n\t error: Number.MAX_VALUE,\n\t code: -1,\n\t start: start,\n\t end: start\n\t },\n\t code,\n\t error,\n\t normalized;\n\t\n\t if (!coderange) {\n\t coderange = self.CODE_PATTERN.length;\n\t }\n\t\n\t for (i = offset; i < self._row.length; i++) {\n\t if (self._row[i] ^ isWhite) {\n\t counter[counterPos]++;\n\t } else {\n\t if (counterPos === counter.length - 1) {\n\t normalized = self._normalize(counter);\n\t if (normalized) {\n\t for (code = 0; code < coderange; code++) {\n\t error = self._matchPattern(normalized, self.CODE_PATTERN[code]);\n\t if (error < bestMatch.error) {\n\t bestMatch.code = code;\n\t bestMatch.error = error;\n\t }\n\t }\n\t bestMatch.end = i;\n\t if (bestMatch.error > self.AVG_CODE_ERROR) {\n\t return null;\n\t }\n\t return bestMatch;\n\t }\n\t } else {\n\t counterPos++;\n\t }\n\t counter[counterPos] = 1;\n\t isWhite = !isWhite;\n\t }\n\t }\n\t return null;\n\t};\n\t\n\tEANReader.prototype._findPattern = function (pattern, offset, isWhite, tryHarder, epsilon) {\n\t var counter = [],\n\t self = this,\n\t i,\n\t counterPos = 0,\n\t bestMatch = {\n\t error: Number.MAX_VALUE,\n\t code: -1,\n\t start: 0,\n\t end: 0\n\t },\n\t error,\n\t j,\n\t sum,\n\t normalized;\n\t\n\t if (!offset) {\n\t offset = self._nextSet(self._row);\n\t }\n\t\n\t if (isWhite === undefined) {\n\t isWhite = false;\n\t }\n\t\n\t if (tryHarder === undefined) {\n\t tryHarder = true;\n\t }\n\t\n\t if (epsilon === undefined) {\n\t epsilon = self.AVG_CODE_ERROR;\n\t }\n\t\n\t for (i = 0; i < pattern.length; i++) {\n\t counter[i] = 0;\n\t }\n\t\n\t for (i = offset; i < self._row.length; i++) {\n\t if (self._row[i] ^ isWhite) {\n\t counter[counterPos]++;\n\t } else {\n\t if (counterPos === counter.length - 1) {\n\t sum = 0;\n\t for (j = 0; j < counter.length; j++) {\n\t sum += counter[j];\n\t }\n\t normalized = self._normalize(counter);\n\t if (normalized) {\n\t error = self._matchPattern(normalized, pattern);\n\t\n\t if (error < epsilon) {\n\t bestMatch.error = error;\n\t bestMatch.start = i - sum;\n\t bestMatch.end = i;\n\t return bestMatch;\n\t }\n\t }\n\t if (tryHarder) {\n\t for (j = 0; j < counter.length - 2; j++) {\n\t counter[j] = counter[j + 2];\n\t }\n\t counter[counter.length - 2] = 0;\n\t counter[counter.length - 1] = 0;\n\t counterPos--;\n\t } else {\n\t return null;\n\t }\n\t } else {\n\t counterPos++;\n\t }\n\t counter[counterPos] = 1;\n\t isWhite = !isWhite;\n\t }\n\t }\n\t return null;\n\t};\n\t\n\tEANReader.prototype._findStart = function () {\n\t var self = this,\n\t leadingWhitespaceStart,\n\t offset = self._nextSet(self._row),\n\t startInfo;\n\t\n\t while (!startInfo) {\n\t startInfo = self._findPattern(self.START_PATTERN, offset);\n\t if (!startInfo) {\n\t return null;\n\t }\n\t leadingWhitespaceStart = startInfo.start - (startInfo.end - startInfo.start);\n\t if (leadingWhitespaceStart >= 0) {\n\t if (self._matchRange(leadingWhitespaceStart, startInfo.start, 0)) {\n\t return startInfo;\n\t }\n\t }\n\t offset = startInfo.end;\n\t startInfo = null;\n\t }\n\t};\n\t\n\tEANReader.prototype._verifyTrailingWhitespace = function (endInfo) {\n\t var self = this,\n\t trailingWhitespaceEnd;\n\t\n\t trailingWhitespaceEnd = endInfo.end + (endInfo.end - endInfo.start);\n\t if (trailingWhitespaceEnd < self._row.length) {\n\t if (self._matchRange(endInfo.end, trailingWhitespaceEnd, 0)) {\n\t return endInfo;\n\t }\n\t }\n\t return null;\n\t};\n\t\n\tEANReader.prototype._findEnd = function (offset, isWhite) {\n\t var self = this,\n\t endInfo = self._findPattern(self.STOP_PATTERN, offset, isWhite, false);\n\t\n\t return endInfo !== null ? self._verifyTrailingWhitespace(endInfo) : null;\n\t};\n\t\n\tEANReader.prototype._calculateFirstDigit = function (codeFrequency) {\n\t var i,\n\t self = this;\n\t\n\t for (i = 0; i < self.CODE_FREQUENCY.length; i++) {\n\t if (codeFrequency === self.CODE_FREQUENCY[i]) {\n\t return i;\n\t }\n\t }\n\t return null;\n\t};\n\t\n\tEANReader.prototype._decodePayload = function (code, result, decodedCodes) {\n\t var i,\n\t self = this,\n\t codeFrequency = 0x0,\n\t firstDigit;\n\t\n\t for (i = 0; i < 6; i++) {\n\t code = self._decodeCode(code.end);\n\t if (!code) {\n\t return null;\n\t }\n\t if (code.code >= self.CODE_G_START) {\n\t code.code = code.code - self.CODE_G_START;\n\t codeFrequency |= 1 << 5 - i;\n\t } else {\n\t codeFrequency |= 0 << 5 - i;\n\t }\n\t result.push(code.code);\n\t decodedCodes.push(code);\n\t }\n\t\n\t firstDigit = self._calculateFirstDigit(codeFrequency);\n\t if (firstDigit === null) {\n\t return null;\n\t }\n\t result.unshift(firstDigit);\n\t\n\t code = self._findPattern(self.MIDDLE_PATTERN, code.end, true, false);\n\t if (code === null) {\n\t return null;\n\t }\n\t decodedCodes.push(code);\n\t\n\t for (i = 0; i < 6; i++) {\n\t code = self._decodeCode(code.end, self.CODE_G_START);\n\t if (!code) {\n\t return null;\n\t }\n\t decodedCodes.push(code);\n\t result.push(code.code);\n\t }\n\t\n\t return code;\n\t};\n\t\n\tEANReader.prototype._decode = function () {\n\t var startInfo,\n\t self = this,\n\t code,\n\t result = [],\n\t decodedCodes = [];\n\t\n\t startInfo = self._findStart();\n\t if (!startInfo) {\n\t return null;\n\t }\n\t code = {\n\t code: startInfo.code,\n\t start: startInfo.start,\n\t end: startInfo.end\n\t };\n\t decodedCodes.push(code);\n\t code = self._decodePayload(code, result, decodedCodes);\n\t if (!code) {\n\t return null;\n\t }\n\t code = self._findEnd(code.end, false);\n\t if (!code) {\n\t return null;\n\t }\n\t\n\t decodedCodes.push(code);\n\t\n\t // Checksum\n\t if (!self._checksum(result)) {\n\t return null;\n\t }\n\t\n\t return {\n\t code: result.join(\"\"),\n\t start: startInfo.start,\n\t end: code.end,\n\t codeset: \"\",\n\t startInfo: startInfo,\n\t decodedCodes: decodedCodes\n\t };\n\t};\n\t\n\tEANReader.prototype._checksum = function (result) {\n\t var sum = 0,\n\t i;\n\t\n\t for (i = result.length - 2; i >= 0; i -= 2) {\n\t sum += result[i];\n\t }\n\t sum *= 3;\n\t for (i = result.length - 1; i >= 0; i -= 2) {\n\t sum += result[i];\n\t }\n\t return sum % 10 === 0;\n\t};\n\t\n\texports[\"default\"] = EANReader;\n\tmodule.exports = exports[\"default\"];\n\n/***/ },\n/* 30 */\n/***/ function(module, exports, __webpack_require__) {\n\n\t'use strict';\n\t\n\tObject.defineProperty(exports, '__esModule', {\n\t value: true\n\t});\n\t\n\tfunction _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }\n\t\n\tvar _barcode_reader = __webpack_require__(28);\n\t\n\tvar _barcode_reader2 = _interopRequireDefault(_barcode_reader);\n\t\n\tvar _array_helper = __webpack_require__(19);\n\t\n\tvar _array_helper2 = _interopRequireDefault(_array_helper);\n\t\n\tfunction Code39Reader() {\n\t _barcode_reader2['default'].call(this);\n\t}\n\t\n\tvar properties = {\n\t ALPHABETH_STRING: { value: \"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ-. *$/+%\" },\n\t ALPHABET: { value: [48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 45, 46, 32, 42, 36, 47, 43, 37] },\n\t CHARACTER_ENCODINGS: { value: [0x034, 0x121, 0x061, 0x160, 0x031, 0x130, 0x070, 0x025, 0x124, 0x064, 0x109, 0x049, 0x148, 0x019, 0x118, 0x058, 0x00D, 0x10C, 0x04C, 0x01C, 0x103, 0x043, 0x142, 0x013, 0x112, 0x052, 0x007, 0x106, 0x046, 0x016, 0x181, 0x0C1, 0x1C0, 0x091, 0x190, 0x0D0, 0x085, 0x184, 0x0C4, 0x094, 0x0A8, 0x0A2, 0x08A, 0x02A] },\n\t ASTERISK: { value: 0x094 },\n\t FORMAT: { value: \"code_39\", writeable: false }\n\t};\n\t\n\tCode39Reader.prototype = Object.create(_barcode_reader2['default'].prototype, properties);\n\tCode39Reader.prototype.constructor = Code39Reader;\n\t\n\tCode39Reader.prototype._toCounters = function (start, counter) {\n\t var self = this,\n\t numCounters = counter.length,\n\t end = self._row.length,\n\t isWhite = !self._row[start],\n\t i,\n\t counterPos = 0;\n\t\n\t _array_helper2['default'].init(counter, 0);\n\t\n\t for (i = start; i < end; i++) {\n\t if (self._row[i] ^ isWhite) {\n\t counter[counterPos]++;\n\t } else {\n\t counterPos++;\n\t if (counterPos === numCounters) {\n\t break;\n\t } else {\n\t counter[counterPos] = 1;\n\t isWhite = !isWhite;\n\t }\n\t }\n\t }\n\t\n\t return counter;\n\t};\n\t\n\tCode39Reader.prototype._decode = function () {\n\t var self = this,\n\t counters = [0, 0, 0, 0, 0, 0, 0, 0, 0],\n\t result = [],\n\t start = self._findStart(),\n\t decodedChar,\n\t lastStart,\n\t pattern,\n\t nextStart;\n\t\n\t if (!start) {\n\t return null;\n\t }\n\t nextStart = self._nextSet(self._row, start.end);\n\t\n\t do {\n\t counters = self._toCounters(nextStart, counters);\n\t pattern = self._toPattern(counters);\n\t if (pattern < 0) {\n\t return null;\n\t }\n\t decodedChar = self._patternToChar(pattern);\n\t if (decodedChar < 0) {\n\t return null;\n\t }\n\t result.push(decodedChar);\n\t lastStart = nextStart;\n\t nextStart += _array_helper2['default'].sum(counters);\n\t nextStart = self._nextSet(self._row, nextStart);\n\t } while (decodedChar !== '*');\n\t result.pop();\n\t\n\t if (!result.length) {\n\t return null;\n\t }\n\t\n\t if (!self._verifyTrailingWhitespace(lastStart, nextStart, counters)) {\n\t return null;\n\t }\n\t\n\t return {\n\t code: result.join(\"\"),\n\t start: start.start,\n\t end: nextStart,\n\t startInfo: start,\n\t decodedCodes: result\n\t };\n\t};\n\t\n\tCode39Reader.prototype._verifyTrailingWhitespace = function (lastStart, nextStart, counters) {\n\t var trailingWhitespaceEnd,\n\t patternSize = _array_helper2['default'].sum(counters);\n\t\n\t trailingWhitespaceEnd = nextStart - lastStart - patternSize;\n\t if (trailingWhitespaceEnd * 3 >= patternSize) {\n\t return true;\n\t }\n\t return false;\n\t};\n\t\n\tCode39Reader.prototype._patternToChar = function (pattern) {\n\t var i,\n\t self = this;\n\t\n\t for (i = 0; i < self.CHARACTER_ENCODINGS.length; i++) {\n\t if (self.CHARACTER_ENCODINGS[i] === pattern) {\n\t return String.fromCharCode(self.ALPHABET[i]);\n\t }\n\t }\n\t};\n\t\n\tCode39Reader.prototype._findNextWidth = function (counters, current) {\n\t var i,\n\t minWidth = Number.MAX_VALUE;\n\t\n\t for (i = 0; i < counters.length; i++) {\n\t if (counters[i] < minWidth && counters[i] > current) {\n\t minWidth = counters[i];\n\t }\n\t }\n\t\n\t return minWidth;\n\t};\n\t\n\tCode39Reader.prototype._toPattern = function (counters) {\n\t var numCounters = counters.length,\n\t maxNarrowWidth = 0,\n\t numWideBars = numCounters,\n\t wideBarWidth = 0,\n\t self = this,\n\t pattern,\n\t i;\n\t\n\t while (numWideBars > 3) {\n\t maxNarrowWidth = self._findNextWidth(counters, maxNarrowWidth);\n\t numWideBars = 0;\n\t pattern = 0;\n\t for (i = 0; i < numCounters; i++) {\n\t if (counters[i] > maxNarrowWidth) {\n\t pattern |= 1 << numCounters - 1 - i;\n\t numWideBars++;\n\t wideBarWidth += counters[i];\n\t }\n\t }\n\t\n\t if (numWideBars === 3) {\n\t for (i = 0; i < numCounters && numWideBars > 0; i++) {\n\t if (counters[i] > maxNarrowWidth) {\n\t numWideBars--;\n\t if (counters[i] * 2 >= wideBarWidth) {\n\t return -1;\n\t }\n\t }\n\t }\n\t return pattern;\n\t }\n\t }\n\t return -1;\n\t};\n\t\n\tCode39Reader.prototype._findStart = function () {\n\t var self = this,\n\t offset = self._nextSet(self._row),\n\t patternStart = offset,\n\t counter = [0, 0, 0, 0, 0, 0, 0, 0, 0],\n\t counterPos = 0,\n\t isWhite = false,\n\t i,\n\t j,\n\t whiteSpaceMustStart;\n\t\n\t for (i = offset; i < self._row.length; i++) {\n\t if (self._row[i] ^ isWhite) {\n\t counter[counterPos]++;\n\t } else {\n\t if (counterPos === counter.length - 1) {\n\t\n\t // find start pattern\n\t if (self._toPattern(counter) === self.ASTERISK) {\n\t whiteSpaceMustStart = Math.floor(Math.max(0, patternStart - (i - patternStart) / 4));\n\t if (self._matchRange(whiteSpaceMustStart, patternStart, 0)) {\n\t return {\n\t start: patternStart,\n\t end: i\n\t };\n\t }\n\t }\n\t\n\t patternStart += counter[0] + counter[1];\n\t for (j = 0; j < 7; j++) {\n\t counter[j] = counter[j + 2];\n\t }\n\t counter[7] = 0;\n\t counter[8] = 0;\n\t counterPos--;\n\t } else {\n\t counterPos++;\n\t }\n\t counter[counterPos] = 1;\n\t isWhite = !isWhite;\n\t }\n\t }\n\t return null;\n\t};\n\t\n\texports['default'] = Code39Reader;\n\tmodule.exports = exports['default'];\n\n/***/ },\n/* 31 */\n/***/ function(module, exports, __webpack_require__) {\n\n\t'use strict';\n\t\n\tObject.defineProperty(exports, '__esModule', {\n\t value: true\n\t});\n\t\n\tfunction _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }\n\t\n\tvar _code_39_reader = __webpack_require__(30);\n\t\n\tvar _code_39_reader2 = _interopRequireDefault(_code_39_reader);\n\t\n\tfunction Code39VINReader() {\n\t _code_39_reader2['default'].call(this);\n\t}\n\t\n\tvar patterns = {\n\t IOQ: /[IOQ]/g,\n\t AZ09: /[A-Z0-9]{17}/\n\t};\n\t\n\tCode39VINReader.prototype = Object.create(_code_39_reader2['default'].prototype);\n\tCode39VINReader.prototype.constructor = Code39VINReader;\n\t\n\t// Cribbed from:\n\t// /~https://github.com/zxing/zxing/blob/master/core/src/main/java/com/google/zxing/client/result/VINResultParser.java\n\tCode39VINReader.prototype._decode = function () {\n\t var result = _code_39_reader2['default'].prototype._decode.apply(this);\n\t if (!result) {\n\t return null;\n\t }\n\t\n\t var code = result.code;\n\t\n\t if (!code) {\n\t return;\n\t }\n\t\n\t code = code.replace(patterns.IOQ, '');\n\t\n\t if (!code.match(patterns.AZ09)) {\n\t console.log('Failed AZ09 pattern code:', code);\n\t return null;\n\t }\n\t\n\t if (!this._checkChecksum(code)) {\n\t return null;\n\t }\n\t\n\t result.code = code;\n\t return result;\n\t};\n\t\n\tCode39VINReader.prototype._checkChecksum = function (code) {\n\t // TODO\n\t return !!code;\n\t};\n\t\n\texports['default'] = Code39VINReader;\n\tmodule.exports = exports['default'];\n\n/***/ },\n/* 32 */\n/***/ function(module, exports, __webpack_require__) {\n\n\t\"use strict\";\n\t\n\tObject.defineProperty(exports, \"__esModule\", {\n\t value: true\n\t});\n\t\n\tfunction _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { \"default\": obj }; }\n\t\n\tvar _barcode_reader = __webpack_require__(28);\n\t\n\tvar _barcode_reader2 = _interopRequireDefault(_barcode_reader);\n\t\n\tfunction CodabarReader() {\n\t _barcode_reader2[\"default\"].call(this);\n\t this._counters = [];\n\t}\n\t\n\tvar properties = {\n\t ALPHABETH_STRING: { value: \"0123456789-$:/.+ABCD\" },\n\t ALPHABET: { value: [48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 45, 36, 58, 47, 46, 43, 65, 66, 67, 68] },\n\t CHARACTER_ENCODINGS: { value: [0x003, 0x006, 0x009, 0x060, 0x012, 0x042, 0x021, 0x024, 0x030, 0x048, 0x00c, 0x018, 0x045, 0x051, 0x054, 0x015, 0x01A, 0x029, 0x00B, 0x00E] },\n\t START_END: { value: [0x01A, 0x029, 0x00B, 0x00E] },\n\t MIN_ENCODED_CHARS: { value: 4 },\n\t MAX_ACCEPTABLE: { value: 2.0 },\n\t PADDING: { value: 1.5 },\n\t FORMAT: { value: \"codabar\", writeable: false }\n\t};\n\t\n\tCodabarReader.prototype = Object.create(_barcode_reader2[\"default\"].prototype, properties);\n\tCodabarReader.prototype.constructor = CodabarReader;\n\t\n\tCodabarReader.prototype._decode = function () {\n\t var self = this,\n\t result = [],\n\t start,\n\t decodedChar,\n\t pattern,\n\t nextStart,\n\t end;\n\t\n\t this._counters = self._fillCounters();\n\t start = self._findStart();\n\t if (!start) {\n\t return null;\n\t }\n\t nextStart = start.startCounter;\n\t\n\t do {\n\t pattern = self._toPattern(nextStart);\n\t if (pattern < 0) {\n\t return null;\n\t }\n\t decodedChar = self._patternToChar(pattern);\n\t if (decodedChar < 0) {\n\t return null;\n\t }\n\t result.push(decodedChar);\n\t nextStart += 8;\n\t if (result.length > 1 && self._isStartEnd(pattern)) {\n\t break;\n\t }\n\t } while (nextStart < self._counters.length);\n\t\n\t // verify end\n\t if (result.length - 2 < self.MIN_ENCODED_CHARS || !self._isStartEnd(pattern)) {\n\t return null;\n\t }\n\t\n\t // verify end white space\n\t if (!self._verifyWhitespace(start.startCounter, nextStart - 8)) {\n\t return null;\n\t }\n\t\n\t if (!self._validateResult(result, start.startCounter)) {\n\t return null;\n\t }\n\t\n\t nextStart = nextStart > self._counters.length ? self._counters.length : nextStart;\n\t end = start.start + self._sumCounters(start.startCounter, nextStart - 8);\n\t\n\t return {\n\t code: result.join(\"\"),\n\t start: start.start,\n\t end: end,\n\t startInfo: start,\n\t decodedCodes: result\n\t };\n\t};\n\t\n\tCodabarReader.prototype._verifyWhitespace = function (startCounter, endCounter) {\n\t if (startCounter - 1 <= 0 || this._counters[startCounter - 1] >= this._calculatePatternLength(startCounter) / 2.0) {\n\t if (endCounter + 8 >= this._counters.length || this._counters[endCounter + 7] >= this._calculatePatternLength(endCounter) / 2.0) {\n\t return true;\n\t }\n\t }\n\t return false;\n\t};\n\t\n\tCodabarReader.prototype._calculatePatternLength = function (offset) {\n\t var i,\n\t sum = 0;\n\t\n\t for (i = offset; i < offset + 7; i++) {\n\t sum += this._counters[i];\n\t }\n\t\n\t return sum;\n\t};\n\t\n\tCodabarReader.prototype._thresholdResultPattern = function (result, startCounter) {\n\t var self = this,\n\t categorization = {\n\t space: {\n\t narrow: { size: 0, counts: 0, min: 0, max: Number.MAX_VALUE },\n\t wide: { size: 0, counts: 0, min: 0, max: Number.MAX_VALUE }\n\t },\n\t bar: {\n\t narrow: { size: 0, counts: 0, min: 0, max: Number.MAX_VALUE },\n\t wide: { size: 0, counts: 0, min: 0, max: Number.MAX_VALUE }\n\t }\n\t },\n\t kind,\n\t cat,\n\t i,\n\t j,\n\t pos = startCounter,\n\t pattern;\n\t\n\t for (i = 0; i < result.length; i++) {\n\t pattern = self._charToPattern(result[i]);\n\t for (j = 6; j >= 0; j--) {\n\t kind = (j & 1) === 2 ? categorization.bar : categorization.space;\n\t cat = (pattern & 1) === 1 ? kind.wide : kind.narrow;\n\t cat.size += self._counters[pos + j];\n\t cat.counts++;\n\t pattern >>= 1;\n\t }\n\t pos += 8;\n\t }\n\t\n\t [\"space\", \"bar\"].forEach(function (key) {\n\t var kind = categorization[key];\n\t kind.wide.min = Math.floor((kind.narrow.size / kind.narrow.counts + kind.wide.size / kind.wide.counts) / 2);\n\t kind.narrow.max = Math.ceil(kind.wide.min);\n\t kind.wide.max = Math.ceil((kind.wide.size * self.MAX_ACCEPTABLE + self.PADDING) / kind.wide.counts);\n\t });\n\t\n\t return categorization;\n\t};\n\t\n\tCodabarReader.prototype._charToPattern = function (char) {\n\t var self = this,\n\t charCode = char.charCodeAt(0),\n\t i;\n\t\n\t for (i = 0; i < self.ALPHABET.length; i++) {\n\t if (self.ALPHABET[i] === charCode) {\n\t return self.CHARACTER_ENCODINGS[i];\n\t }\n\t }\n\t return 0x0;\n\t};\n\t\n\tCodabarReader.prototype._validateResult = function (result, startCounter) {\n\t var self = this,\n\t thresholds = self._thresholdResultPattern(result, startCounter),\n\t i,\n\t j,\n\t kind,\n\t cat,\n\t size,\n\t pos = startCounter,\n\t pattern;\n\t\n\t for (i = 0; i < result.length; i++) {\n\t pattern = self._charToPattern(result[i]);\n\t for (j = 6; j >= 0; j--) {\n\t kind = (j & 1) === 0 ? thresholds.bar : thresholds.space;\n\t cat = (pattern & 1) === 1 ? kind.wide : kind.narrow;\n\t size = self._counters[pos + j];\n\t if (size < cat.min || size > cat.max) {\n\t return false;\n\t }\n\t pattern >>= 1;\n\t }\n\t pos += 8;\n\t }\n\t return true;\n\t};\n\t\n\tCodabarReader.prototype._patternToChar = function (pattern) {\n\t var i,\n\t self = this;\n\t\n\t for (i = 0; i < self.CHARACTER_ENCODINGS.length; i++) {\n\t if (self.CHARACTER_ENCODINGS[i] === pattern) {\n\t return String.fromCharCode(self.ALPHABET[i]);\n\t }\n\t }\n\t return -1;\n\t};\n\t\n\tCodabarReader.prototype._computeAlternatingThreshold = function (offset, end) {\n\t var i,\n\t min = Number.MAX_VALUE,\n\t max = 0,\n\t counter;\n\t\n\t for (i = offset; i < end; i += 2) {\n\t counter = this._counters[i];\n\t if (counter > max) {\n\t max = counter;\n\t }\n\t if (counter < min) {\n\t min = counter;\n\t }\n\t }\n\t\n\t return (min + max) / 2.0 | 0;\n\t};\n\t\n\tCodabarReader.prototype._toPattern = function (offset) {\n\t var numCounters = 7,\n\t end = offset + numCounters,\n\t barThreshold,\n\t spaceThreshold,\n\t bitmask = 1 << numCounters - 1,\n\t pattern = 0,\n\t i,\n\t threshold;\n\t\n\t if (end > this._counters.length) {\n\t return -1;\n\t }\n\t\n\t barThreshold = this._computeAlternatingThreshold(offset, end);\n\t spaceThreshold = this._computeAlternatingThreshold(offset + 1, end);\n\t\n\t for (i = 0; i < numCounters; i++) {\n\t threshold = (i & 1) === 0 ? barThreshold : spaceThreshold;\n\t if (this._counters[offset + i] > threshold) {\n\t pattern |= bitmask;\n\t }\n\t bitmask >>= 1;\n\t }\n\t\n\t return pattern;\n\t};\n\t\n\tCodabarReader.prototype._isStartEnd = function (pattern) {\n\t var i;\n\t\n\t for (i = 0; i < this.START_END.length; i++) {\n\t if (this.START_END[i] === pattern) {\n\t return true;\n\t }\n\t }\n\t return false;\n\t};\n\t\n\tCodabarReader.prototype._sumCounters = function (start, end) {\n\t var i,\n\t sum = 0;\n\t\n\t for (i = start; i < end; i++) {\n\t sum += this._counters[i];\n\t }\n\t return sum;\n\t};\n\t\n\tCodabarReader.prototype._findStart = function () {\n\t var self = this,\n\t i,\n\t pattern,\n\t start = self._nextUnset(self._row),\n\t end;\n\t\n\t for (i = 1; i < this._counters.length; i++) {\n\t pattern = self._toPattern(i);\n\t if (pattern !== -1 && self._isStartEnd(pattern)) {\n\t // TODO: Look for whitespace ahead\n\t start += self._sumCounters(0, i);\n\t end = start + self._sumCounters(i, i + 8);\n\t return {\n\t start: start,\n\t end: end,\n\t startCounter: i,\n\t endCounter: i + 8\n\t };\n\t }\n\t }\n\t};\n\t\n\texports[\"default\"] = CodabarReader;\n\tmodule.exports = exports[\"default\"];\n\n/***/ },\n/* 33 */\n/***/ function(module, exports, __webpack_require__) {\n\n\t\"use strict\";\n\t\n\tObject.defineProperty(exports, \"__esModule\", {\n\t value: true\n\t});\n\t\n\tfunction _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { \"default\": obj }; }\n\t\n\tvar _ean_reader = __webpack_require__(29);\n\t\n\tvar _ean_reader2 = _interopRequireDefault(_ean_reader);\n\t\n\tfunction UPCReader() {\n\t _ean_reader2[\"default\"].call(this);\n\t}\n\t\n\tvar properties = {\n\t FORMAT: { value: \"upc_a\", writeable: false }\n\t};\n\t\n\tUPCReader.prototype = Object.create(_ean_reader2[\"default\"].prototype, properties);\n\tUPCReader.prototype.constructor = UPCReader;\n\t\n\tUPCReader.prototype._decode = function () {\n\t var result = _ean_reader2[\"default\"].prototype._decode.call(this);\n\t\n\t if (result && result.code && result.code.length === 13 && result.code.charAt(0) === \"0\") {\n\t\n\t result.code = result.code.substring(1);\n\t return result;\n\t }\n\t return null;\n\t};\n\t\n\texports[\"default\"] = _ean_reader2[\"default\"];\n\tmodule.exports = exports[\"default\"];\n\n/***/ },\n/* 34 */\n/***/ function(module, exports, __webpack_require__) {\n\n\t\"use strict\";\n\t\n\tObject.defineProperty(exports, \"__esModule\", {\n\t value: true\n\t});\n\t\n\tfunction _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { \"default\": obj }; }\n\t\n\tvar _ean_reader = __webpack_require__(29);\n\t\n\tvar _ean_reader2 = _interopRequireDefault(_ean_reader);\n\t\n\tfunction EAN8Reader() {\n\t _ean_reader2[\"default\"].call(this);\n\t}\n\t\n\tvar properties = {\n\t FORMAT: { value: \"ean_8\", writeable: false }\n\t};\n\t\n\tEAN8Reader.prototype = Object.create(_ean_reader2[\"default\"].prototype, properties);\n\tEAN8Reader.prototype.constructor = EAN8Reader;\n\t\n\tEAN8Reader.prototype._decodePayload = function (code, result, decodedCodes) {\n\t var i,\n\t self = this;\n\t\n\t for (i = 0; i < 4; i++) {\n\t code = self._decodeCode(code.end, self.CODE_G_START);\n\t if (!code) {\n\t return null;\n\t }\n\t result.push(code.code);\n\t decodedCodes.push(code);\n\t }\n\t\n\t code = self._findPattern(self.MIDDLE_PATTERN, code.end, true, false);\n\t if (code === null) {\n\t return null;\n\t }\n\t decodedCodes.push(code);\n\t\n\t for (i = 0; i < 4; i++) {\n\t code = self._decodeCode(code.end, self.CODE_G_START);\n\t if (!code) {\n\t return null;\n\t }\n\t decodedCodes.push(code);\n\t result.push(code.code);\n\t }\n\t\n\t return code;\n\t};\n\t\n\texports[\"default\"] = EAN8Reader;\n\tmodule.exports = exports[\"default\"];\n\n/***/ },\n/* 35 */\n/***/ function(module, exports, __webpack_require__) {\n\n\t\"use strict\";\n\t\n\tObject.defineProperty(exports, \"__esModule\", {\n\t value: true\n\t});\n\t\n\tfunction _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { \"default\": obj }; }\n\t\n\tvar _ean_reader = __webpack_require__(29);\n\t\n\tvar _ean_reader2 = _interopRequireDefault(_ean_reader);\n\t\n\tfunction UPCEReader() {\n\t _ean_reader2[\"default\"].call(this);\n\t}\n\t\n\tvar properties = {\n\t CODE_FREQUENCY: { value: [[56, 52, 50, 49, 44, 38, 35, 42, 41, 37], [7, 11, 13, 14, 19, 25, 28, 21, 22, 26]] },\n\t STOP_PATTERN: { value: [1 / 6 * 7, 1 / 6 * 7, 1 / 6 * 7, 1 / 6 * 7, 1 / 6 * 7, 1 / 6 * 7] },\n\t FORMAT: { value: \"upc_e\", writeable: false }\n\t};\n\t\n\tUPCEReader.prototype = Object.create(_ean_reader2[\"default\"].prototype, properties);\n\tUPCEReader.prototype.constructor = UPCEReader;\n\t\n\tUPCEReader.prototype._decodePayload = function (code, result, decodedCodes) {\n\t var i,\n\t self = this,\n\t codeFrequency = 0x0;\n\t\n\t for (i = 0; i < 6; i++) {\n\t code = self._decodeCode(code.end);\n\t if (!code) {\n\t return null;\n\t }\n\t if (code.code >= self.CODE_G_START) {\n\t code.code = code.code - self.CODE_G_START;\n\t codeFrequency |= 1 << 5 - i;\n\t }\n\t result.push(code.code);\n\t decodedCodes.push(code);\n\t }\n\t if (!self._determineParity(codeFrequency, result)) {\n\t return null;\n\t }\n\t\n\t return code;\n\t};\n\t\n\tUPCEReader.prototype._determineParity = function (codeFrequency, result) {\n\t var self = this,\n\t i,\n\t nrSystem;\n\t\n\t for (nrSystem = 0; nrSystem < self.CODE_FREQUENCY.length; nrSystem++) {\n\t for (i = 0; i < self.CODE_FREQUENCY[nrSystem].length; i++) {\n\t if (codeFrequency === self.CODE_FREQUENCY[nrSystem][i]) {\n\t result.unshift(nrSystem);\n\t result.push(i);\n\t return true;\n\t }\n\t }\n\t }\n\t return false;\n\t};\n\t\n\tUPCEReader.prototype._convertToUPCA = function (result) {\n\t var upca = [result[0]],\n\t lastDigit = result[result.length - 2];\n\t\n\t if (lastDigit <= 2) {\n\t upca = upca.concat(result.slice(1, 3)).concat([lastDigit, 0, 0, 0, 0]).concat(result.slice(3, 6));\n\t } else if (lastDigit === 3) {\n\t upca = upca.concat(result.slice(1, 4)).concat([0, 0, 0, 0, 0]).concat(result.slice(4, 6));\n\t } else if (lastDigit === 4) {\n\t upca = upca.concat(result.slice(1, 5)).concat([0, 0, 0, 0, 0, result[5]]);\n\t } else {\n\t upca = upca.concat(result.slice(1, 6)).concat([0, 0, 0, 0, lastDigit]);\n\t }\n\t\n\t upca.push(result[result.length - 1]);\n\t return upca;\n\t};\n\t\n\tUPCEReader.prototype._checksum = function (result) {\n\t return _ean_reader2[\"default\"].prototype._checksum.call(this, this._convertToUPCA(result));\n\t};\n\t\n\tUPCEReader.prototype._findEnd = function (offset, isWhite) {\n\t isWhite = true;\n\t return _ean_reader2[\"default\"].prototype._findEnd.call(this, offset, isWhite);\n\t};\n\t\n\tUPCEReader.prototype._verifyTrailingWhitespace = function (endInfo) {\n\t var self = this,\n\t trailingWhitespaceEnd;\n\t\n\t trailingWhitespaceEnd = endInfo.end + (endInfo.end - endInfo.start) / 2;\n\t if (trailingWhitespaceEnd < self._row.length) {\n\t if (self._matchRange(endInfo.end, trailingWhitespaceEnd, 0)) {\n\t return endInfo;\n\t }\n\t }\n\t};\n\t\n\texports[\"default\"] = UPCEReader;\n\tmodule.exports = exports[\"default\"];\n\n/***/ },\n/* 36 */\n/***/ function(module, exports, __webpack_require__) {\n\n\t'use strict';\n\t\n\tObject.defineProperty(exports, '__esModule', {\n\t value: true\n\t});\n\t\n\tfunction _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }\n\t\n\tvar _barcode_reader = __webpack_require__(28);\n\t\n\tvar _barcode_reader2 = _interopRequireDefault(_barcode_reader);\n\t\n\tvar merge = __webpack_require__(37);\n\t\n\tfunction I2of5Reader(opts) {\n\t opts = merge(getDefaulConfig(), opts);\n\t _barcode_reader2['default'].call(this, opts);\n\t this.barSpaceRatio = [1, 1];\n\t if (opts.normalizeBarSpaceWidth) {\n\t this.SINGLE_CODE_ERROR = 0.38;\n\t this.AVG_CODE_ERROR = 0.09;\n\t }\n\t}\n\t\n\tfunction getDefaulConfig() {\n\t var config = {};\n\t\n\t Object.keys(I2of5Reader.CONFIG_KEYS).forEach(function (key) {\n\t config[key] = I2of5Reader.CONFIG_KEYS[key]['default'];\n\t });\n\t return config;\n\t}\n\t\n\tvar N = 1,\n\t W = 3,\n\t properties = {\n\t MODULO: { value: 10 },\n\t START_PATTERN: { value: [N * 2.5, N * 2.5, N * 2.5, N * 2.5] },\n\t STOP_PATTERN: { value: [N * 2, N * 2, W * 2] },\n\t CODE_PATTERN: { value: [[N, N, W, W, N], [W, N, N, N, W], [N, W, N, N, W], [W, W, N, N, N], [N, N, W, N, W], [W, N, W, N, N], [N, W, W, N, N], [N, N, N, W, W], [W, N, N, W, N], [N, W, N, W, N]] },\n\t SINGLE_CODE_ERROR: { value: 0.78, writable: true },\n\t AVG_CODE_ERROR: { value: 0.38, writable: true },\n\t MAX_CORRECTION_FACTOR: { value: 5 },\n\t FORMAT: { value: \"i2of5\" }\n\t};\n\t\n\tI2of5Reader.prototype = Object.create(_barcode_reader2['default'].prototype, properties);\n\tI2of5Reader.prototype.constructor = I2of5Reader;\n\t\n\tI2of5Reader.prototype._matchPattern = function (counter, code) {\n\t if (this.config.normalizeBarSpaceWidth) {\n\t var i,\n\t counterSum = [0, 0],\n\t codeSum = [0, 0],\n\t correction = [0, 0],\n\t correctionRatio = this.MAX_CORRECTION_FACTOR,\n\t correctionRatioInverse = 1 / correctionRatio;\n\t\n\t for (i = 0; i < counter.length; i++) {\n\t counterSum[i % 2] += counter[i];\n\t codeSum[i % 2] += code[i];\n\t }\n\t correction[0] = codeSum[0] / counterSum[0];\n\t correction[1] = codeSum[1] / counterSum[1];\n\t\n\t correction[0] = Math.max(Math.min(correction[0], correctionRatio), correctionRatioInverse);\n\t correction[1] = Math.max(Math.min(correction[1], correctionRatio), correctionRatioInverse);\n\t this.barSpaceRatio = correction;\n\t for (i = 0; i < counter.length; i++) {\n\t counter[i] *= this.barSpaceRatio[i % 2];\n\t }\n\t }\n\t return _barcode_reader2['default'].prototype._matchPattern.call(this, counter, code);\n\t};\n\t\n\tI2of5Reader.prototype._findPattern = function (pattern, offset, isWhite, tryHarder) {\n\t var counter = [],\n\t self = this,\n\t i,\n\t counterPos = 0,\n\t bestMatch = {\n\t error: Number.MAX_VALUE,\n\t code: -1,\n\t start: 0,\n\t end: 0\n\t },\n\t error,\n\t j,\n\t sum,\n\t normalized,\n\t epsilon = self.AVG_CODE_ERROR;\n\t\n\t isWhite = isWhite || false;\n\t tryHarder = tryHarder || false;\n\t\n\t if (!offset) {\n\t offset = self._nextSet(self._row);\n\t }\n\t\n\t for (i = 0; i < pattern.length; i++) {\n\t counter[i] = 0;\n\t }\n\t\n\t for (i = offset; i < self._row.length; i++) {\n\t if (self._row[i] ^ isWhite) {\n\t counter[counterPos]++;\n\t } else {\n\t if (counterPos === counter.length - 1) {\n\t sum = 0;\n\t for (j = 0; j < counter.length; j++) {\n\t sum += counter[j];\n\t }\n\t normalized = self._normalize(counter);\n\t if (normalized) {\n\t error = self._matchPattern(normalized, pattern);\n\t\n\t if (error < epsilon) {\n\t bestMatch.error = error;\n\t bestMatch.start = i - sum;\n\t bestMatch.end = i;\n\t return bestMatch;\n\t }\n\t }\n\t if (tryHarder) {\n\t for (j = 0; j < counter.length - 2; j++) {\n\t counter[j] = counter[j + 2];\n\t }\n\t counter[counter.length - 2] = 0;\n\t counter[counter.length - 1] = 0;\n\t counterPos--;\n\t } else {\n\t return null;\n\t }\n\t } else {\n\t counterPos++;\n\t }\n\t counter[counterPos] = 1;\n\t isWhite = !isWhite;\n\t }\n\t }\n\t return null;\n\t};\n\t\n\tI2of5Reader.prototype._findStart = function () {\n\t var self = this,\n\t leadingWhitespaceStart,\n\t offset = self._nextSet(self._row),\n\t startInfo,\n\t narrowBarWidth = 1;\n\t\n\t while (!startInfo) {\n\t startInfo = self._findPattern(self.START_PATTERN, offset, false, true);\n\t if (!startInfo) {\n\t return null;\n\t }\n\t narrowBarWidth = Math.floor((startInfo.end - startInfo.start) / 4);\n\t leadingWhitespaceStart = startInfo.start - narrowBarWidth * 10;\n\t if (leadingWhitespaceStart >= 0) {\n\t if (self._matchRange(leadingWhitespaceStart, startInfo.start, 0)) {\n\t return startInfo;\n\t }\n\t }\n\t offset = startInfo.end;\n\t startInfo = null;\n\t }\n\t};\n\t\n\tI2of5Reader.prototype._verifyTrailingWhitespace = function (endInfo) {\n\t var self = this,\n\t trailingWhitespaceEnd;\n\t\n\t trailingWhitespaceEnd = endInfo.end + (endInfo.end - endInfo.start) / 2;\n\t if (trailingWhitespaceEnd < self._row.length) {\n\t if (self._matchRange(endInfo.end, trailingWhitespaceEnd, 0)) {\n\t return endInfo;\n\t }\n\t }\n\t return null;\n\t};\n\t\n\tI2of5Reader.prototype._findEnd = function () {\n\t var self = this,\n\t endInfo,\n\t tmp;\n\t\n\t self._row.reverse();\n\t endInfo = self._findPattern(self.STOP_PATTERN);\n\t self._row.reverse();\n\t\n\t if (endInfo === null) {\n\t return null;\n\t }\n\t\n\t // reverse numbers\n\t tmp = endInfo.start;\n\t endInfo.start = self._row.length - endInfo.end;\n\t endInfo.end = self._row.length - tmp;\n\t\n\t return endInfo !== null ? self._verifyTrailingWhitespace(endInfo) : null;\n\t};\n\t\n\tI2of5Reader.prototype._decodePair = function (counterPair) {\n\t var i,\n\t code,\n\t codes = [],\n\t self = this;\n\t\n\t for (i = 0; i < counterPair.length; i++) {\n\t code = self._decodeCode(counterPair[i]);\n\t if (!code) {\n\t return null;\n\t }\n\t codes.push(code);\n\t }\n\t return codes;\n\t};\n\t\n\tI2of5Reader.prototype._decodeCode = function (counter) {\n\t var j,\n\t self = this,\n\t sum = 0,\n\t normalized,\n\t error,\n\t epsilon = self.AVG_CODE_ERROR,\n\t code,\n\t bestMatch = {\n\t error: Number.MAX_VALUE,\n\t code: -1,\n\t start: 0,\n\t end: 0\n\t };\n\t\n\t for (j = 0; j < counter.length; j++) {\n\t sum += counter[j];\n\t }\n\t normalized = self._normalize(counter);\n\t if (normalized) {\n\t for (code = 0; code < self.CODE_PATTERN.length; code++) {\n\t error = self._matchPattern(normalized, self.CODE_PATTERN[code]);\n\t if (error < bestMatch.error) {\n\t bestMatch.code = code;\n\t bestMatch.error = error;\n\t }\n\t }\n\t if (bestMatch.error < epsilon) {\n\t return bestMatch;\n\t }\n\t }\n\t return null;\n\t};\n\t\n\tI2of5Reader.prototype._decodePayload = function (counters, result, decodedCodes) {\n\t var i,\n\t self = this,\n\t pos = 0,\n\t counterLength = counters.length,\n\t counterPair = [[0, 0, 0, 0, 0], [0, 0, 0, 0, 0]],\n\t codes;\n\t\n\t while (pos < counterLength) {\n\t for (i = 0; i < 5; i++) {\n\t counterPair[0][i] = counters[pos] * this.barSpaceRatio[0];\n\t counterPair[1][i] = counters[pos + 1] * this.barSpaceRatio[1];\n\t pos += 2;\n\t }\n\t codes = self._decodePair(counterPair);\n\t if (!codes) {\n\t return null;\n\t }\n\t for (i = 0; i < codes.length; i++) {\n\t result.push(codes[i].code + \"\");\n\t decodedCodes.push(codes[i]);\n\t }\n\t }\n\t return codes;\n\t};\n\t\n\tI2of5Reader.prototype._verifyCounterLength = function (counters) {\n\t return counters.length % 10 === 0;\n\t};\n\t\n\tI2of5Reader.prototype._decode = function () {\n\t var startInfo,\n\t endInfo,\n\t self = this,\n\t code,\n\t result = [],\n\t decodedCodes = [],\n\t counters;\n\t\n\t startInfo = self._findStart();\n\t if (!startInfo) {\n\t return null;\n\t }\n\t decodedCodes.push(startInfo);\n\t\n\t endInfo = self._findEnd();\n\t if (!endInfo) {\n\t return null;\n\t }\n\t\n\t counters = self._fillCounters(startInfo.end, endInfo.start, false);\n\t if (!self._verifyCounterLength(counters)) {\n\t return null;\n\t }\n\t code = self._decodePayload(counters, result, decodedCodes);\n\t if (!code) {\n\t return null;\n\t }\n\t if (result.length % 2 !== 0 || result.length < 6) {\n\t return null;\n\t }\n\t\n\t decodedCodes.push(endInfo);\n\t return {\n\t code: result.join(\"\"),\n\t start: startInfo.start,\n\t end: endInfo.end,\n\t startInfo: startInfo,\n\t decodedCodes: decodedCodes\n\t };\n\t};\n\t\n\tI2of5Reader.CONFIG_KEYS = {\n\t normalizeBarSpaceWidth: {\n\t 'type': 'boolean',\n\t 'default': false,\n\t 'description': 'If true, the reader tries to normalize the' + 'width-difference between bars and spaces'\n\t }\n\t};\n\t\n\texports['default'] = I2of5Reader;\n\tmodule.exports = exports['default'];\n\n/***/ },\n/* 37 */\n/***/ function(module, exports, __webpack_require__) {\n\n\tvar baseMerge = __webpack_require__(38),\n\t createAssigner = __webpack_require__(65);\n\t\n\t/**\n\t * Recursively merges own enumerable properties of the source object(s), that\n\t * don't resolve to `undefined` into the destination object. Subsequent sources\n\t * overwrite property assignments of previous sources. If `customizer` is\n\t * provided it's invoked to produce the merged values of the destination and\n\t * source properties. If `customizer` returns `undefined` merging is handled\n\t * by the method instead. The `customizer` is bound to `thisArg` and invoked\n\t * with five arguments: (objectValue, sourceValue, key, object, source).\n\t *\n\t * @static\n\t * @memberOf _\n\t * @category Object\n\t * @param {Object} object The destination object.\n\t * @param {...Object} [sources] The source objects.\n\t * @param {Function} [customizer] The function to customize assigned values.\n\t * @param {*} [thisArg] The `this` binding of `customizer`.\n\t * @returns {Object} Returns `object`.\n\t * @example\n\t *\n\t * var users = {\n\t * 'data': [{ 'user': 'barney' }, { 'user': 'fred' }]\n\t * };\n\t *\n\t * var ages = {\n\t * 'data': [{ 'age': 36 }, { 'age': 40 }]\n\t * };\n\t *\n\t * _.merge(users, ages);\n\t * // => { 'data': [{ 'user': 'barney', 'age': 36 }, { 'user': 'fred', 'age': 40 }] }\n\t *\n\t * // using a customizer callback\n\t * var object = {\n\t * 'fruits': ['apple'],\n\t * 'vegetables': ['beet']\n\t * };\n\t *\n\t * var other = {\n\t * 'fruits': ['banana'],\n\t * 'vegetables': ['carrot']\n\t * };\n\t *\n\t * _.merge(object, other, function(a, b) {\n\t * if (_.isArray(a)) {\n\t * return a.concat(b);\n\t * }\n\t * });\n\t * // => { 'fruits': ['apple', 'banana'], 'vegetables': ['beet', 'carrot'] }\n\t */\n\tvar merge = createAssigner(baseMerge);\n\t\n\tmodule.exports = merge;\n\n\n/***/ },\n/* 38 */\n/***/ function(module, exports, __webpack_require__) {\n\n\tvar arrayEach = __webpack_require__(39),\n\t baseMergeDeep = __webpack_require__(40),\n\t isArray = __webpack_require__(48),\n\t isArrayLike = __webpack_require__(43),\n\t isObject = __webpack_require__(52),\n\t isObjectLike = __webpack_require__(47),\n\t isTypedArray = __webpack_require__(60),\n\t keys = __webpack_require__(63);\n\t\n\t/**\n\t * The base implementation of `_.merge` without support for argument juggling,\n\t * multiple sources, and `this` binding `customizer` functions.\n\t *\n\t * @private\n\t * @param {Object} object The destination object.\n\t * @param {Object} source The source object.\n\t * @param {Function} [customizer] The function to customize merged values.\n\t * @param {Array} [stackA=[]] Tracks traversed source objects.\n\t * @param {Array} [stackB=[]] Associates values with source counterparts.\n\t * @returns {Object} Returns `object`.\n\t */\n\tfunction baseMerge(object, source, customizer, stackA, stackB) {\n\t if (!isObject(object)) {\n\t return object;\n\t }\n\t var isSrcArr = isArrayLike(source) && (isArray(source) || isTypedArray(source)),\n\t props = isSrcArr ? undefined : keys(source);\n\t\n\t arrayEach(props || source, function(srcValue, key) {\n\t if (props) {\n\t key = srcValue;\n\t srcValue = source[key];\n\t }\n\t if (isObjectLike(srcValue)) {\n\t stackA || (stackA = []);\n\t stackB || (stackB = []);\n\t baseMergeDeep(object, source, key, baseMerge, customizer, stackA, stackB);\n\t }\n\t else {\n\t var value = object[key],\n\t result = customizer ? customizer(value, srcValue, key, object, source) : undefined,\n\t isCommon = result === undefined;\n\t\n\t if (isCommon) {\n\t result = srcValue;\n\t }\n\t if ((result !== undefined || (isSrcArr && !(key in object))) &&\n\t (isCommon || (result === result ? (result !== value) : (value === value)))) {\n\t object[key] = result;\n\t }\n\t }\n\t });\n\t return object;\n\t}\n\t\n\tmodule.exports = baseMerge;\n\n\n/***/ },\n/* 39 */\n/***/ function(module, exports) {\n\n\t/**\n\t * A specialized version of `_.forEach` for arrays without support for callback\n\t * shorthands and `this` binding.\n\t *\n\t * @private\n\t * @param {Array} array The array to iterate over.\n\t * @param {Function} iteratee The function invoked per iteration.\n\t * @returns {Array} Returns `array`.\n\t */\n\tfunction arrayEach(array, iteratee) {\n\t var index = -1,\n\t length = array.length;\n\t\n\t while (++index < length) {\n\t if (iteratee(array[index], index, array) === false) {\n\t break;\n\t }\n\t }\n\t return array;\n\t}\n\t\n\tmodule.exports = arrayEach;\n\n\n/***/ },\n/* 40 */\n/***/ function(module, exports, __webpack_require__) {\n\n\tvar arrayCopy = __webpack_require__(41),\n\t isArguments = __webpack_require__(42),\n\t isArray = __webpack_require__(48),\n\t isArrayLike = __webpack_require__(43),\n\t isPlainObject = __webpack_require__(53),\n\t isTypedArray = __webpack_require__(60),\n\t toPlainObject = __webpack_require__(61);\n\t\n\t/**\n\t * A specialized version of `baseMerge` for arrays and objects which performs\n\t * deep merges and tracks traversed objects enabling objects with circular\n\t * references to be merged.\n\t *\n\t * @private\n\t * @param {Object} object The destination object.\n\t * @param {Object} source The source object.\n\t * @param {string} key The key of the value to merge.\n\t * @param {Function} mergeFunc The function to merge values.\n\t * @param {Function} [customizer] The function to customize merged values.\n\t * @param {Array} [stackA=[]] Tracks traversed source objects.\n\t * @param {Array} [stackB=[]] Associates values with source counterparts.\n\t * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.\n\t */\n\tfunction baseMergeDeep(object, source, key, mergeFunc, customizer, stackA, stackB) {\n\t var length = stackA.length,\n\t srcValue = source[key];\n\t\n\t while (length--) {\n\t if (stackA[length] == srcValue) {\n\t object[key] = stackB[length];\n\t return;\n\t }\n\t }\n\t var value = object[key],\n\t result = customizer ? customizer(value, srcValue, key, object, source) : undefined,\n\t isCommon = result === undefined;\n\t\n\t if (isCommon) {\n\t result = srcValue;\n\t if (isArrayLike(srcValue) && (isArray(srcValue) || isTypedArray(srcValue))) {\n\t result = isArray(value)\n\t ? value\n\t : (isArrayLike(value) ? arrayCopy(value) : []);\n\t }\n\t else if (isPlainObject(srcValue) || isArguments(srcValue)) {\n\t result = isArguments(value)\n\t ? toPlainObject(value)\n\t : (isPlainObject(value) ? value : {});\n\t }\n\t else {\n\t isCommon = false;\n\t }\n\t }\n\t // Add the source value to the stack of traversed objects and associate\n\t // it with its merged value.\n\t stackA.push(srcValue);\n\t stackB.push(result);\n\t\n\t if (isCommon) {\n\t // Recursively merge objects and arrays (susceptible to call stack limits).\n\t object[key] = mergeFunc(result, srcValue, customizer, stackA, stackB);\n\t } else if (result === result ? (result !== value) : (value === value)) {\n\t object[key] = result;\n\t }\n\t}\n\t\n\tmodule.exports = baseMergeDeep;\n\n\n/***/ },\n/* 41 */\n/***/ function(module, exports) {\n\n\t/**\n\t * Copies the values of `source` to `array`.\n\t *\n\t * @private\n\t * @param {Array} source The array to copy values from.\n\t * @param {Array} [array=[]] The array to copy values to.\n\t * @returns {Array} Returns `array`.\n\t */\n\tfunction arrayCopy(source, array) {\n\t var index = -1,\n\t length = source.length;\n\t\n\t array || (array = Array(length));\n\t while (++index < length) {\n\t array[index] = source[index];\n\t }\n\t return array;\n\t}\n\t\n\tmodule.exports = arrayCopy;\n\n\n/***/ },\n/* 42 */\n/***/ function(module, exports, __webpack_require__) {\n\n\tvar isArrayLike = __webpack_require__(43),\n\t isObjectLike = __webpack_require__(47);\n\t\n\t/** Used for native method references. */\n\tvar objectProto = Object.prototype;\n\t\n\t/** Used to check objects for own properties. */\n\tvar hasOwnProperty = objectProto.hasOwnProperty;\n\t\n\t/** Native method references. */\n\tvar propertyIsEnumerable = objectProto.propertyIsEnumerable;\n\t\n\t/**\n\t * Checks if `value` is classified as an `arguments` object.\n\t *\n\t * @static\n\t * @memberOf _\n\t * @category Lang\n\t * @param {*} value The value to check.\n\t * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.\n\t * @example\n\t *\n\t * _.isArguments(function() { return arguments; }());\n\t * // => true\n\t *\n\t * _.isArguments([1, 2, 3]);\n\t * // => false\n\t */\n\tfunction isArguments(value) {\n\t return isObjectLike(value) && isArrayLike(value) &&\n\t hasOwnProperty.call(value, 'callee') && !propertyIsEnumerable.call(value, 'callee');\n\t}\n\t\n\tmodule.exports = isArguments;\n\n\n/***/ },\n/* 43 */\n/***/ function(module, exports, __webpack_require__) {\n\n\tvar getLength = __webpack_require__(44),\n\t isLength = __webpack_require__(46);\n\t\n\t/**\n\t * Checks if `value` is array-like.\n\t *\n\t * @private\n\t * @param {*} value The value to check.\n\t * @returns {boolean} Returns `true` if `value` is array-like, else `false`.\n\t */\n\tfunction isArrayLike(value) {\n\t return value != null && isLength(getLength(value));\n\t}\n\t\n\tmodule.exports = isArrayLike;\n\n\n/***/ },\n/* 44 */\n/***/ function(module, exports, __webpack_require__) {\n\n\tvar baseProperty = __webpack_require__(45);\n\t\n\t/**\n\t * Gets the \"length\" property value of `object`.\n\t *\n\t * **Note:** This function is used to avoid a [JIT bug](https://bugs.webkit.org/show_bug.cgi?id=142792)\n\t * that affects Safari on at least iOS 8.1-8.3 ARM64.\n\t *\n\t * @private\n\t * @param {Object} object The object to query.\n\t * @returns {*} Returns the \"length\" value.\n\t */\n\tvar getLength = baseProperty('length');\n\t\n\tmodule.exports = getLength;\n\n\n/***/ },\n/* 45 */\n/***/ function(module, exports) {\n\n\t/**\n\t * The base implementation of `_.property` without support for deep paths.\n\t *\n\t * @private\n\t * @param {string} key The key of the property to get.\n\t * @returns {Function} Returns the new function.\n\t */\n\tfunction baseProperty(key) {\n\t return function(object) {\n\t return object == null ? undefined : object[key];\n\t };\n\t}\n\t\n\tmodule.exports = baseProperty;\n\n\n/***/ },\n/* 46 */\n/***/ function(module, exports) {\n\n\t/**\n\t * Used as the [maximum length](http://ecma-international.org/ecma-262/6.0/#sec-number.max_safe_integer)\n\t * of an array-like value.\n\t */\n\tvar MAX_SAFE_INTEGER = 9007199254740991;\n\t\n\t/**\n\t * Checks if `value` is a valid array-like length.\n\t *\n\t * **Note:** This function is based on [`ToLength`](http://ecma-international.org/ecma-262/6.0/#sec-tolength).\n\t *\n\t * @private\n\t * @param {*} value The value to check.\n\t * @returns {boolean} Returns `true` if `value` is a valid length, else `false`.\n\t */\n\tfunction isLength(value) {\n\t return typeof value == 'number' && value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER;\n\t}\n\t\n\tmodule.exports = isLength;\n\n\n/***/ },\n/* 47 */\n/***/ function(module, exports) {\n\n\t/**\n\t * Checks if `value` is object-like.\n\t *\n\t * @private\n\t * @param {*} value The value to check.\n\t * @returns {boolean} Returns `true` if `value` is object-like, else `false`.\n\t */\n\tfunction isObjectLike(value) {\n\t return !!value && typeof value == 'object';\n\t}\n\t\n\tmodule.exports = isObjectLike;\n\n\n/***/ },\n/* 48 */\n/***/ function(module, exports, __webpack_require__) {\n\n\tvar getNative = __webpack_require__(49),\n\t isLength = __webpack_require__(46),\n\t isObjectLike = __webpack_require__(47);\n\t\n\t/** `Object#toString` result references. */\n\tvar arrayTag = '[object Array]';\n\t\n\t/** Used for native method references. */\n\tvar objectProto = Object.prototype;\n\t\n\t/**\n\t * Used to resolve the [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)\n\t * of values.\n\t */\n\tvar objToString = objectProto.toString;\n\t\n\t/* Native method references for those with the same name as other `lodash` methods. */\n\tvar nativeIsArray = getNative(Array, 'isArray');\n\t\n\t/**\n\t * Checks if `value` is classified as an `Array` object.\n\t *\n\t * @static\n\t * @memberOf _\n\t * @category Lang\n\t * @param {*} value The value to check.\n\t * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.\n\t * @example\n\t *\n\t * _.isArray([1, 2, 3]);\n\t * // => true\n\t *\n\t * _.isArray(function() { return arguments; }());\n\t * // => false\n\t */\n\tvar isArray = nativeIsArray || function(value) {\n\t return isObjectLike(value) && isLength(value.length) && objToString.call(value) == arrayTag;\n\t};\n\t\n\tmodule.exports = isArray;\n\n\n/***/ },\n/* 49 */\n/***/ function(module, exports, __webpack_require__) {\n\n\tvar isNative = __webpack_require__(50);\n\t\n\t/**\n\t * Gets the native function at `key` of `object`.\n\t *\n\t * @private\n\t * @param {Object} object The object to query.\n\t * @param {string} key The key of the method to get.\n\t * @returns {*} Returns the function if it's native, else `undefined`.\n\t */\n\tfunction getNative(object, key) {\n\t var value = object == null ? undefined : object[key];\n\t return isNative(value) ? value : undefined;\n\t}\n\t\n\tmodule.exports = getNative;\n\n\n/***/ },\n/* 50 */\n/***/ function(module, exports, __webpack_require__) {\n\n\tvar isFunction = __webpack_require__(51),\n\t isObjectLike = __webpack_require__(47);\n\t\n\t/** Used to detect host constructors (Safari > 5). */\n\tvar reIsHostCtor = /^\\[object .+?Constructor\\]$/;\n\t\n\t/** Used for native method references. */\n\tvar objectProto = Object.prototype;\n\t\n\t/** Used to resolve the decompiled source of functions. */\n\tvar fnToString = Function.prototype.toString;\n\t\n\t/** Used to check objects for own properties. */\n\tvar hasOwnProperty = objectProto.hasOwnProperty;\n\t\n\t/** Used to detect if a method is native. */\n\tvar reIsNative = RegExp('^' +\n\t fnToString.call(hasOwnProperty).replace(/[\\\\^$.*+?()[\\]{}|]/g, '\\\\$&')\n\t .replace(/hasOwnProperty|(function).*?(?=\\\\\\()| for .+?(?=\\\\\\])/g, '$1.*?') + '$'\n\t);\n\t\n\t/**\n\t * Checks if `value` is a native function.\n\t *\n\t * @static\n\t * @memberOf _\n\t * @category Lang\n\t * @param {*} value The value to check.\n\t * @returns {boolean} Returns `true` if `value` is a native function, else `false`.\n\t * @example\n\t *\n\t * _.isNative(Array.prototype.push);\n\t * // => true\n\t *\n\t * _.isNative(_);\n\t * // => false\n\t */\n\tfunction isNative(value) {\n\t if (value == null) {\n\t return false;\n\t }\n\t if (isFunction(value)) {\n\t return reIsNative.test(fnToString.call(value));\n\t }\n\t return isObjectLike(value) && reIsHostCtor.test(value);\n\t}\n\t\n\tmodule.exports = isNative;\n\n\n/***/ },\n/* 51 */\n/***/ function(module, exports, __webpack_require__) {\n\n\tvar isObject = __webpack_require__(52);\n\t\n\t/** `Object#toString` result references. */\n\tvar funcTag = '[object Function]';\n\t\n\t/** Used for native method references. */\n\tvar objectProto = Object.prototype;\n\t\n\t/**\n\t * Used to resolve the [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)\n\t * of values.\n\t */\n\tvar objToString = objectProto.toString;\n\t\n\t/**\n\t * Checks if `value` is classified as a `Function` object.\n\t *\n\t * @static\n\t * @memberOf _\n\t * @category Lang\n\t * @param {*} value The value to check.\n\t * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.\n\t * @example\n\t *\n\t * _.isFunction(_);\n\t * // => true\n\t *\n\t * _.isFunction(/abc/);\n\t * // => false\n\t */\n\tfunction isFunction(value) {\n\t // The use of `Object#toString` avoids issues with the `typeof` operator\n\t // in older versions of Chrome and Safari which return 'function' for regexes\n\t // and Safari 8 which returns 'object' for typed array constructors.\n\t return isObject(value) && objToString.call(value) == funcTag;\n\t}\n\t\n\tmodule.exports = isFunction;\n\n\n/***/ },\n/* 52 */\n/***/ function(module, exports) {\n\n\t/**\n\t * Checks if `value` is the [language type](https://es5.github.io/#x8) of `Object`.\n\t * (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)\n\t *\n\t * @static\n\t * @memberOf _\n\t * @category Lang\n\t * @param {*} value The value to check.\n\t * @returns {boolean} Returns `true` if `value` is an object, else `false`.\n\t * @example\n\t *\n\t * _.isObject({});\n\t * // => true\n\t *\n\t * _.isObject([1, 2, 3]);\n\t * // => true\n\t *\n\t * _.isObject(1);\n\t * // => false\n\t */\n\tfunction isObject(value) {\n\t // Avoid a V8 JIT bug in Chrome 19-20.\n\t // See https://code.google.com/p/v8/issues/detail?id=2291 for more details.\n\t var type = typeof value;\n\t return !!value && (type == 'object' || type == 'function');\n\t}\n\t\n\tmodule.exports = isObject;\n\n\n/***/ },\n/* 53 */\n/***/ function(module, exports, __webpack_require__) {\n\n\tvar baseForIn = __webpack_require__(54),\n\t isArguments = __webpack_require__(42),\n\t isObjectLike = __webpack_require__(47);\n\t\n\t/** `Object#toString` result references. */\n\tvar objectTag = '[object Object]';\n\t\n\t/** Used for native method references. */\n\tvar objectProto = Object.prototype;\n\t\n\t/** Used to check objects for own properties. */\n\tvar hasOwnProperty = objectProto.hasOwnProperty;\n\t\n\t/**\n\t * Used to resolve the [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)\n\t * of values.\n\t */\n\tvar objToString = objectProto.toString;\n\t\n\t/**\n\t * Checks if `value` is a plain object, that is, an object created by the\n\t * `Object` constructor or one with a `[[Prototype]]` of `null`.\n\t *\n\t * **Note:** This method assumes objects created by the `Object` constructor\n\t * have no inherited enumerable properties.\n\t *\n\t * @static\n\t * @memberOf _\n\t * @category Lang\n\t * @param {*} value The value to check.\n\t * @returns {boolean} Returns `true` if `value` is a plain object, else `false`.\n\t * @example\n\t *\n\t * function Foo() {\n\t * this.a = 1;\n\t * }\n\t *\n\t * _.isPlainObject(new Foo);\n\t * // => false\n\t *\n\t * _.isPlainObject([1, 2, 3]);\n\t * // => false\n\t *\n\t * _.isPlainObject({ 'x': 0, 'y': 0 });\n\t * // => true\n\t *\n\t * _.isPlainObject(Object.create(null));\n\t * // => true\n\t */\n\tfunction isPlainObject(value) {\n\t var Ctor;\n\t\n\t // Exit early for non `Object` objects.\n\t if (!(isObjectLike(value) && objToString.call(value) == objectTag && !isArguments(value)) ||\n\t (!hasOwnProperty.call(value, 'constructor') && (Ctor = value.constructor, typeof Ctor == 'function' && !(Ctor instanceof Ctor)))) {\n\t return false;\n\t }\n\t // IE < 9 iterates inherited properties before own properties. If the first\n\t // iterated property is an object's own property then there are no inherited\n\t // enumerable properties.\n\t var result;\n\t // In most environments an object's own properties are iterated before\n\t // its inherited properties. If the last iterated property is an object's\n\t // own property then there are no inherited enumerable properties.\n\t baseForIn(value, function(subValue, key) {\n\t result = key;\n\t });\n\t return result === undefined || hasOwnProperty.call(value, result);\n\t}\n\t\n\tmodule.exports = isPlainObject;\n\n\n/***/ },\n/* 54 */\n/***/ function(module, exports, __webpack_require__) {\n\n\tvar baseFor = __webpack_require__(55),\n\t keysIn = __webpack_require__(58);\n\t\n\t/**\n\t * The base implementation of `_.forIn` without support for callback\n\t * shorthands and `this` binding.\n\t *\n\t * @private\n\t * @param {Object} object The object to iterate over.\n\t * @param {Function} iteratee The function invoked per iteration.\n\t * @returns {Object} Returns `object`.\n\t */\n\tfunction baseForIn(object, iteratee) {\n\t return baseFor(object, iteratee, keysIn);\n\t}\n\t\n\tmodule.exports = baseForIn;\n\n\n/***/ },\n/* 55 */\n/***/ function(module, exports, __webpack_require__) {\n\n\tvar createBaseFor = __webpack_require__(56);\n\t\n\t/**\n\t * The base implementation of `baseForIn` and `baseForOwn` which iterates\n\t * over `object` properties returned by `keysFunc` invoking `iteratee` for\n\t * each property. Iteratee functions may exit iteration early by explicitly\n\t * returning `false`.\n\t *\n\t * @private\n\t * @param {Object} object The object to iterate over.\n\t * @param {Function} iteratee The function invoked per iteration.\n\t * @param {Function} keysFunc The function to get the keys of `object`.\n\t * @returns {Object} Returns `object`.\n\t */\n\tvar baseFor = createBaseFor();\n\t\n\tmodule.exports = baseFor;\n\n\n/***/ },\n/* 56 */\n/***/ function(module, exports, __webpack_require__) {\n\n\tvar toObject = __webpack_require__(57);\n\t\n\t/**\n\t * Creates a base function for `_.forIn` or `_.forInRight`.\n\t *\n\t * @private\n\t * @param {boolean} [fromRight] Specify iterating from right to left.\n\t * @returns {Function} Returns the new base function.\n\t */\n\tfunction createBaseFor(fromRight) {\n\t return function(object, iteratee, keysFunc) {\n\t var iterable = toObject(object),\n\t props = keysFunc(object),\n\t length = props.length,\n\t index = fromRight ? length : -1;\n\t\n\t while ((fromRight ? index-- : ++index < length)) {\n\t var key = props[index];\n\t if (iteratee(iterable[key], key, iterable) === false) {\n\t break;\n\t }\n\t }\n\t return object;\n\t };\n\t}\n\t\n\tmodule.exports = createBaseFor;\n\n\n/***/ },\n/* 57 */\n/***/ function(module, exports, __webpack_require__) {\n\n\tvar isObject = __webpack_require__(52);\n\t\n\t/**\n\t * Converts `value` to an object if it's not one.\n\t *\n\t * @private\n\t * @param {*} value The value to process.\n\t * @returns {Object} Returns the object.\n\t */\n\tfunction toObject(value) {\n\t return isObject(value) ? value : Object(value);\n\t}\n\t\n\tmodule.exports = toObject;\n\n\n/***/ },\n/* 58 */\n/***/ function(module, exports, __webpack_require__) {\n\n\tvar isArguments = __webpack_require__(42),\n\t isArray = __webpack_require__(48),\n\t isIndex = __webpack_require__(59),\n\t isLength = __webpack_require__(46),\n\t isObject = __webpack_require__(52);\n\t\n\t/** Used for native method references. */\n\tvar objectProto = Object.prototype;\n\t\n\t/** Used to check objects for own properties. */\n\tvar hasOwnProperty = objectProto.hasOwnProperty;\n\t\n\t/**\n\t * Creates an array of the own and inherited enumerable property names of `object`.\n\t *\n\t * **Note:** Non-object values are coerced to objects.\n\t *\n\t * @static\n\t * @memberOf _\n\t * @category Object\n\t * @param {Object} object The object to query.\n\t * @returns {Array} Returns the array of property names.\n\t * @example\n\t *\n\t * function Foo() {\n\t * this.a = 1;\n\t * this.b = 2;\n\t * }\n\t *\n\t * Foo.prototype.c = 3;\n\t *\n\t * _.keysIn(new Foo);\n\t * // => ['a', 'b', 'c'] (iteration order is not guaranteed)\n\t */\n\tfunction keysIn(object) {\n\t if (object == null) {\n\t return [];\n\t }\n\t if (!isObject(object)) {\n\t object = Object(object);\n\t }\n\t var length = object.length;\n\t length = (length && isLength(length) &&\n\t (isArray(object) || isArguments(object)) && length) || 0;\n\t\n\t var Ctor = object.constructor,\n\t index = -1,\n\t isProto = typeof Ctor == 'function' && Ctor.prototype === object,\n\t result = Array(length),\n\t skipIndexes = length > 0;\n\t\n\t while (++index < length) {\n\t result[index] = (index + '');\n\t }\n\t for (var key in object) {\n\t if (!(skipIndexes && isIndex(key, length)) &&\n\t !(key == 'constructor' && (isProto || !hasOwnProperty.call(object, key)))) {\n\t result.push(key);\n\t }\n\t }\n\t return result;\n\t}\n\t\n\tmodule.exports = keysIn;\n\n\n/***/ },\n/* 59 */\n/***/ function(module, exports) {\n\n\t/** Used to detect unsigned integer values. */\n\tvar reIsUint = /^\\d+$/;\n\t\n\t/**\n\t * Used as the [maximum length](http://ecma-international.org/ecma-262/6.0/#sec-number.max_safe_integer)\n\t * of an array-like value.\n\t */\n\tvar MAX_SAFE_INTEGER = 9007199254740991;\n\t\n\t/**\n\t * Checks if `value` is a valid array-like index.\n\t *\n\t * @private\n\t * @param {*} value The value to check.\n\t * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index.\n\t * @returns {boolean} Returns `true` if `value` is a valid index, else `false`.\n\t */\n\tfunction isIndex(value, length) {\n\t value = (typeof value == 'number' || reIsUint.test(value)) ? +value : -1;\n\t length = length == null ? MAX_SAFE_INTEGER : length;\n\t return value > -1 && value % 1 == 0 && value < length;\n\t}\n\t\n\tmodule.exports = isIndex;\n\n\n/***/ },\n/* 60 */\n/***/ function(module, exports, __webpack_require__) {\n\n\tvar isLength = __webpack_require__(46),\n\t isObjectLike = __webpack_require__(47);\n\t\n\t/** `Object#toString` result references. */\n\tvar argsTag = '[object Arguments]',\n\t arrayTag = '[object Array]',\n\t boolTag = '[object Boolean]',\n\t dateTag = '[object Date]',\n\t errorTag = '[object Error]',\n\t funcTag = '[object Function]',\n\t mapTag = '[object Map]',\n\t numberTag = '[object Number]',\n\t objectTag = '[object Object]',\n\t regexpTag = '[object RegExp]',\n\t setTag = '[object Set]',\n\t stringTag = '[object String]',\n\t weakMapTag = '[object WeakMap]';\n\t\n\tvar arrayBufferTag = '[object ArrayBuffer]',\n\t float32Tag = '[object Float32Array]',\n\t float64Tag = '[object Float64Array]',\n\t int8Tag = '[object Int8Array]',\n\t int16Tag = '[object Int16Array]',\n\t int32Tag = '[object Int32Array]',\n\t uint8Tag = '[object Uint8Array]',\n\t uint8ClampedTag = '[object Uint8ClampedArray]',\n\t uint16Tag = '[object Uint16Array]',\n\t uint32Tag = '[object Uint32Array]';\n\t\n\t/** Used to identify `toStringTag` values of typed arrays. */\n\tvar typedArrayTags = {};\n\ttypedArrayTags[float32Tag] = typedArrayTags[float64Tag] =\n\ttypedArrayTags[int8Tag] = typedArrayTags[int16Tag] =\n\ttypedArrayTags[int32Tag] = typedArrayTags[uint8Tag] =\n\ttypedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] =\n\ttypedArrayTags[uint32Tag] = true;\n\ttypedArrayTags[argsTag] = typedArrayTags[arrayTag] =\n\ttypedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] =\n\ttypedArrayTags[dateTag] = typedArrayTags[errorTag] =\n\ttypedArrayTags[funcTag] = typedArrayTags[mapTag] =\n\ttypedArrayTags[numberTag] = typedArrayTags[objectTag] =\n\ttypedArrayTags[regexpTag] = typedArrayTags[setTag] =\n\ttypedArrayTags[stringTag] = typedArrayTags[weakMapTag] = false;\n\t\n\t/** Used for native method references. */\n\tvar objectProto = Object.prototype;\n\t\n\t/**\n\t * Used to resolve the [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)\n\t * of values.\n\t */\n\tvar objToString = objectProto.toString;\n\t\n\t/**\n\t * Checks if `value` is classified as a typed array.\n\t *\n\t * @static\n\t * @memberOf _\n\t * @category Lang\n\t * @param {*} value The value to check.\n\t * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.\n\t * @example\n\t *\n\t * _.isTypedArray(new Uint8Array);\n\t * // => true\n\t *\n\t * _.isTypedArray([]);\n\t * // => false\n\t */\n\tfunction isTypedArray(value) {\n\t return isObjectLike(value) && isLength(value.length) && !!typedArrayTags[objToString.call(value)];\n\t}\n\t\n\tmodule.exports = isTypedArray;\n\n\n/***/ },\n/* 61 */\n/***/ function(module, exports, __webpack_require__) {\n\n\tvar baseCopy = __webpack_require__(62),\n\t keysIn = __webpack_require__(58);\n\t\n\t/**\n\t * Converts `value` to a plain object flattening inherited enumerable\n\t * properties of `value` to own properties of the plain object.\n\t *\n\t * @static\n\t * @memberOf _\n\t * @category Lang\n\t * @param {*} value The value to convert.\n\t * @returns {Object} Returns the converted plain object.\n\t * @example\n\t *\n\t * function Foo() {\n\t * this.b = 2;\n\t * }\n\t *\n\t * Foo.prototype.c = 3;\n\t *\n\t * _.assign({ 'a': 1 }, new Foo);\n\t * // => { 'a': 1, 'b': 2 }\n\t *\n\t * _.assign({ 'a': 1 }, _.toPlainObject(new Foo));\n\t * // => { 'a': 1, 'b': 2, 'c': 3 }\n\t */\n\tfunction toPlainObject(value) {\n\t return baseCopy(value, keysIn(value));\n\t}\n\t\n\tmodule.exports = toPlainObject;\n\n\n/***/ },\n/* 62 */\n/***/ function(module, exports) {\n\n\t/**\n\t * Copies properties of `source` to `object`.\n\t *\n\t * @private\n\t * @param {Object} source The object to copy properties from.\n\t * @param {Array} props The property names to copy.\n\t * @param {Object} [object={}] The object to copy properties to.\n\t * @returns {Object} Returns `object`.\n\t */\n\tfunction baseCopy(source, props, object) {\n\t object || (object = {});\n\t\n\t var index = -1,\n\t length = props.length;\n\t\n\t while (++index < length) {\n\t var key = props[index];\n\t object[key] = source[key];\n\t }\n\t return object;\n\t}\n\t\n\tmodule.exports = baseCopy;\n\n\n/***/ },\n/* 63 */\n/***/ function(module, exports, __webpack_require__) {\n\n\tvar getNative = __webpack_require__(49),\n\t isArrayLike = __webpack_require__(43),\n\t isObject = __webpack_require__(52),\n\t shimKeys = __webpack_require__(64);\n\t\n\t/* Native method references for those with the same name as other `lodash` methods. */\n\tvar nativeKeys = getNative(Object, 'keys');\n\t\n\t/**\n\t * Creates an array of the own enumerable property names of `object`.\n\t *\n\t * **Note:** Non-object values are coerced to objects. See the\n\t * [ES spec](http://ecma-international.org/ecma-262/6.0/#sec-object.keys)\n\t * for more details.\n\t *\n\t * @static\n\t * @memberOf _\n\t * @category Object\n\t * @param {Object} object The object to query.\n\t * @returns {Array} Returns the array of property names.\n\t * @example\n\t *\n\t * function Foo() {\n\t * this.a = 1;\n\t * this.b = 2;\n\t * }\n\t *\n\t * Foo.prototype.c = 3;\n\t *\n\t * _.keys(new Foo);\n\t * // => ['a', 'b'] (iteration order is not guaranteed)\n\t *\n\t * _.keys('hi');\n\t * // => ['0', '1']\n\t */\n\tvar keys = !nativeKeys ? shimKeys : function(object) {\n\t var Ctor = object == null ? undefined : object.constructor;\n\t if ((typeof Ctor == 'function' && Ctor.prototype === object) ||\n\t (typeof object != 'function' && isArrayLike(object))) {\n\t return shimKeys(object);\n\t }\n\t return isObject(object) ? nativeKeys(object) : [];\n\t};\n\t\n\tmodule.exports = keys;\n\n\n/***/ },\n/* 64 */\n/***/ function(module, exports, __webpack_require__) {\n\n\tvar isArguments = __webpack_require__(42),\n\t isArray = __webpack_require__(48),\n\t isIndex = __webpack_require__(59),\n\t isLength = __webpack_require__(46),\n\t keysIn = __webpack_require__(58);\n\t\n\t/** Used for native method references. */\n\tvar objectProto = Object.prototype;\n\t\n\t/** Used to check objects for own properties. */\n\tvar hasOwnProperty = objectProto.hasOwnProperty;\n\t\n\t/**\n\t * A fallback implementation of `Object.keys` which creates an array of the\n\t * own enumerable property names of `object`.\n\t *\n\t * @private\n\t * @param {Object} object The object to query.\n\t * @returns {Array} Returns the array of property names.\n\t */\n\tfunction shimKeys(object) {\n\t var props = keysIn(object),\n\t propsLength = props.length,\n\t length = propsLength && object.length;\n\t\n\t var allowIndexes = !!length && isLength(length) &&\n\t (isArray(object) || isArguments(object));\n\t\n\t var index = -1,\n\t result = [];\n\t\n\t while (++index < propsLength) {\n\t var key = props[index];\n\t if ((allowIndexes && isIndex(key, length)) || hasOwnProperty.call(object, key)) {\n\t result.push(key);\n\t }\n\t }\n\t return result;\n\t}\n\t\n\tmodule.exports = shimKeys;\n\n\n/***/ },\n/* 65 */\n/***/ function(module, exports, __webpack_require__) {\n\n\tvar bindCallback = __webpack_require__(66),\n\t isIterateeCall = __webpack_require__(68),\n\t restParam = __webpack_require__(69);\n\t\n\t/**\n\t * Creates a `_.assign`, `_.defaults`, or `_.merge` function.\n\t *\n\t * @private\n\t * @param {Function} assigner The function to assign values.\n\t * @returns {Function} Returns the new assigner function.\n\t */\n\tfunction createAssigner(assigner) {\n\t return restParam(function(object, sources) {\n\t var index = -1,\n\t length = object == null ? 0 : sources.length,\n\t customizer = length > 2 ? sources[length - 2] : undefined,\n\t guard = length > 2 ? sources[2] : undefined,\n\t thisArg = length > 1 ? sources[length - 1] : undefined;\n\t\n\t if (typeof customizer == 'function') {\n\t customizer = bindCallback(customizer, thisArg, 5);\n\t length -= 2;\n\t } else {\n\t customizer = typeof thisArg == 'function' ? thisArg : undefined;\n\t length -= (customizer ? 1 : 0);\n\t }\n\t if (guard && isIterateeCall(sources[0], sources[1], guard)) {\n\t customizer = length < 3 ? undefined : customizer;\n\t length = 1;\n\t }\n\t while (++index < length) {\n\t var source = sources[index];\n\t if (source) {\n\t assigner(object, source, customizer);\n\t }\n\t }\n\t return object;\n\t });\n\t}\n\t\n\tmodule.exports = createAssigner;\n\n\n/***/ },\n/* 66 */\n/***/ function(module, exports, __webpack_require__) {\n\n\tvar identity = __webpack_require__(67);\n\t\n\t/**\n\t * A specialized version of `baseCallback` which only supports `this` binding\n\t * and specifying the number of arguments to provide to `func`.\n\t *\n\t * @private\n\t * @param {Function} func The function to bind.\n\t * @param {*} thisArg The `this` binding of `func`.\n\t * @param {number} [argCount] The number of arguments to provide to `func`.\n\t * @returns {Function} Returns the callback.\n\t */\n\tfunction bindCallback(func, thisArg, argCount) {\n\t if (typeof func != 'function') {\n\t return identity;\n\t }\n\t if (thisArg === undefined) {\n\t return func;\n\t }\n\t switch (argCount) {\n\t case 1: return function(value) {\n\t return func.call(thisArg, value);\n\t };\n\t case 3: return function(value, index, collection) {\n\t return func.call(thisArg, value, index, collection);\n\t };\n\t case 4: return function(accumulator, value, index, collection) {\n\t return func.call(thisArg, accumulator, value, index, collection);\n\t };\n\t case 5: return function(value, other, key, object, source) {\n\t return func.call(thisArg, value, other, key, object, source);\n\t };\n\t }\n\t return function() {\n\t return func.apply(thisArg, arguments);\n\t };\n\t}\n\t\n\tmodule.exports = bindCallback;\n\n\n/***/ },\n/* 67 */\n/***/ function(module, exports) {\n\n\t/**\n\t * This method returns the first argument provided to it.\n\t *\n\t * @static\n\t * @memberOf _\n\t * @category Utility\n\t * @param {*} value Any value.\n\t * @returns {*} Returns `value`.\n\t * @example\n\t *\n\t * var object = { 'user': 'fred' };\n\t *\n\t * _.identity(object) === object;\n\t * // => true\n\t */\n\tfunction identity(value) {\n\t return value;\n\t}\n\t\n\tmodule.exports = identity;\n\n\n/***/ },\n/* 68 */\n/***/ function(module, exports, __webpack_require__) {\n\n\tvar isArrayLike = __webpack_require__(43),\n\t isIndex = __webpack_require__(59),\n\t isObject = __webpack_require__(52);\n\t\n\t/**\n\t * Checks if the provided arguments are from an iteratee call.\n\t *\n\t * @private\n\t * @param {*} value The potential iteratee value argument.\n\t * @param {*} index The potential iteratee index or key argument.\n\t * @param {*} object The potential iteratee object argument.\n\t * @returns {boolean} Returns `true` if the arguments are from an iteratee call, else `false`.\n\t */\n\tfunction isIterateeCall(value, index, object) {\n\t if (!isObject(object)) {\n\t return false;\n\t }\n\t var type = typeof index;\n\t if (type == 'number'\n\t ? (isArrayLike(object) && isIndex(index, object.length))\n\t : (type == 'string' && index in object)) {\n\t var other = object[index];\n\t return value === value ? (value === other) : (other !== other);\n\t }\n\t return false;\n\t}\n\t\n\tmodule.exports = isIterateeCall;\n\n\n/***/ },\n/* 69 */\n/***/ function(module, exports) {\n\n\t/** Used as the `TypeError` message for \"Functions\" methods. */\n\tvar FUNC_ERROR_TEXT = 'Expected a function';\n\t\n\t/* Native method references for those with the same name as other `lodash` methods. */\n\tvar nativeMax = Math.max;\n\t\n\t/**\n\t * Creates a function that invokes `func` with the `this` binding of the\n\t * created function and arguments from `start` and beyond provided as an array.\n\t *\n\t * **Note:** This method is based on the [rest parameter](https://developer.mozilla.org/Web/JavaScript/Reference/Functions/rest_parameters).\n\t *\n\t * @static\n\t * @memberOf _\n\t * @category Function\n\t * @param {Function} func The function to apply a rest parameter to.\n\t * @param {number} [start=func.length-1] The start position of the rest parameter.\n\t * @returns {Function} Returns the new function.\n\t * @example\n\t *\n\t * var say = _.restParam(function(what, names) {\n\t * return what + ' ' + _.initial(names).join(', ') +\n\t * (_.size(names) > 1 ? ', & ' : '') + _.last(names);\n\t * });\n\t *\n\t * say('hello', 'fred', 'barney', 'pebbles');\n\t * // => 'hello fred, barney, & pebbles'\n\t */\n\tfunction restParam(func, start) {\n\t if (typeof func != 'function') {\n\t throw new TypeError(FUNC_ERROR_TEXT);\n\t }\n\t start = nativeMax(start === undefined ? (func.length - 1) : (+start || 0), 0);\n\t return function() {\n\t var args = arguments,\n\t index = -1,\n\t length = nativeMax(args.length - start, 0),\n\t rest = Array(length);\n\t\n\t while (++index < length) {\n\t rest[index] = args[start + index];\n\t }\n\t switch (start) {\n\t case 0: return func.call(this, rest);\n\t case 1: return func.call(this, args[0], rest);\n\t case 2: return func.call(this, args[0], args[1], rest);\n\t }\n\t var otherArgs = Array(start + 1);\n\t index = -1;\n\t while (++index < start) {\n\t otherArgs[index] = args[index];\n\t }\n\t otherArgs[start] = rest;\n\t return func.apply(this, otherArgs);\n\t };\n\t}\n\t\n\tmodule.exports = restParam;\n\n\n/***/ },\n/* 70 */\n/***/ function(module, exports, __webpack_require__) {\n\n\t\"use strict\";\n\t\n\tObject.defineProperty(exports, \"__esModule\", {\n\t value: true\n\t});\n\t\n\tfunction _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { \"default\": obj }; }\n\t\n\tvar _cv_utils = __webpack_require__(7);\n\t\n\tvar _cv_utils2 = _interopRequireDefault(_cv_utils);\n\t\n\tvar FrameGrabber = {};\n\t\n\tFrameGrabber.create = function (inputStream, canvas) {\n\t var _that = {},\n\t _streamConfig = inputStream.getConfig(),\n\t _video_size = _cv_utils2[\"default\"].imageRef(inputStream.getRealWidth(), inputStream.getRealHeight()),\n\t _canvasSize = inputStream.getCanvasSize(),\n\t _size = _cv_utils2[\"default\"].imageRef(inputStream.getWidth(), inputStream.getHeight()),\n\t topRight = inputStream.getTopRight(),\n\t _sx = topRight.x,\n\t _sy = topRight.y,\n\t _canvas,\n\t _ctx = null,\n\t _data = null;\n\t\n\t _canvas = canvas ? canvas : document.createElement(\"canvas\");\n\t _canvas.width = _canvasSize.x;\n\t _canvas.height = _canvasSize.y;\n\t _ctx = _canvas.getContext(\"2d\");\n\t _data = new Uint8Array(_size.x * _size.y);\n\t console.log(\"FrameGrabber\", JSON.stringify({\n\t size: _size,\n\t topRight: topRight,\n\t videoSize: _video_size,\n\t canvasSize: _canvasSize\n\t }));\n\t\n\t /**\n\t * Uses the given array as frame-buffer\n\t */\n\t _that.attachData = function (data) {\n\t _data = data;\n\t };\n\t\n\t /**\n\t * Returns the used frame-buffer\n\t */\n\t _that.getData = function () {\n\t return _data;\n\t };\n\t\n\t /**\n\t * Fetches a frame from the input-stream and puts into the frame-buffer.\n\t * The image-data is converted to gray-scale and then half-sampled if configured.\n\t */\n\t _that.grab = function () {\n\t var doHalfSample = _streamConfig.halfSample,\n\t frame = inputStream.getFrame(),\n\t ctxData;\n\t if (frame) {\n\t _ctx.drawImage(frame, 0, 0, _canvasSize.x, _canvasSize.y);\n\t ctxData = _ctx.getImageData(_sx, _sy, _size.x, _size.y).data;\n\t if (doHalfSample) {\n\t _cv_utils2[\"default\"].grayAndHalfSampleFromCanvasData(ctxData, _size, _data);\n\t } else {\n\t _cv_utils2[\"default\"].computeGray(ctxData, _data, _streamConfig);\n\t }\n\t return true;\n\t } else {\n\t return false;\n\t }\n\t };\n\t\n\t _that.getSize = function () {\n\t return _size;\n\t };\n\t\n\t return _that;\n\t};\n\t\n\texports[\"default\"] = FrameGrabber;\n\tmodule.exports = exports[\"default\"];\n\n/***/ },\n/* 71 */\n/***/ function(module, exports) {\n\n\t\"use strict\";\n\t\n\tObject.defineProperty(exports, \"__esModule\", {\n\t value: true\n\t});\n\texports[\"default\"] = {\n\t inputStream: {\n\t name: \"Live\",\n\t type: \"LiveStream\",\n\t constraints: {\n\t width: 640,\n\t height: 480,\n\t minAspectRatio: 0,\n\t maxAspectRatio: 100,\n\t facing: \"environment\" // or user\n\t },\n\t area: {\n\t top: \"0%\",\n\t right: \"0%\",\n\t left: \"0%\",\n\t bottom: \"0%\"\n\t },\n\t singleChannel: false // true: only the red color-channel is read\n\t },\n\t tracking: false,\n\t debug: false,\n\t controls: false,\n\t locate: true,\n\t numOfWorkers: 4,\n\t visual: {\n\t show: true\n\t },\n\t decoder: {\n\t drawBoundingBox: false,\n\t showFrequency: false,\n\t drawScanline: false,\n\t showPattern: false,\n\t readers: ['code_128_reader']\n\t },\n\t locator: {\n\t halfSample: true,\n\t patchSize: \"medium\", // x-small, small, medium, large, x-large\n\t showCanvas: false,\n\t showPatches: false,\n\t showFoundPatches: false,\n\t showSkeleton: false,\n\t showLabels: false,\n\t showPatchLabels: false,\n\t showRemainingPatchLabels: false,\n\t boxFromPatches: {\n\t showTransformed: false,\n\t showTransformedBox: false,\n\t showBB: false\n\t }\n\t }\n\t};\n\tmodule.exports = exports[\"default\"];\n\n/***/ },\n/* 72 */\n/***/ function(module, exports) {\n\n\t\"use strict\";\n\t\n\tObject.defineProperty(exports, \"__esModule\", {\n\t value: true\n\t});\n\t\n\texports[\"default\"] = (function () {\n\t var events = {};\n\t\n\t function getEvent(eventName) {\n\t if (!events[eventName]) {\n\t events[eventName] = {\n\t subscribers: []\n\t };\n\t }\n\t return events[eventName];\n\t }\n\t\n\t function clearEvents() {\n\t events = {};\n\t }\n\t\n\t function publishSubscription(subscription, data) {\n\t if (subscription.async) {\n\t setTimeout(function () {\n\t subscription.callback(data);\n\t }, 4);\n\t } else {\n\t subscription.callback(data);\n\t }\n\t }\n\t\n\t function _subscribe(event, callback, async) {\n\t var subscription;\n\t\n\t if (typeof callback === \"function\") {\n\t subscription = {\n\t callback: callback,\n\t async: async\n\t };\n\t } else {\n\t subscription = callback;\n\t if (!subscription.callback) {\n\t throw \"Callback was not specified on options\";\n\t }\n\t }\n\t\n\t getEvent(event).subscribers.push(subscription);\n\t }\n\t\n\t return {\n\t subscribe: function subscribe(event, callback, async) {\n\t return _subscribe(event, callback, async);\n\t },\n\t publish: function publish(eventName, data) {\n\t var event = getEvent(eventName),\n\t subscribers = event.subscribers;\n\t\n\t event.subscribers = subscribers.filter(function (subscriber) {\n\t publishSubscription(subscriber, data);\n\t return !subscriber.once;\n\t });\n\t },\n\t once: function once(event, callback, async) {\n\t _subscribe(event, {\n\t callback: callback,\n\t async: async,\n\t once: true\n\t });\n\t },\n\t unsubscribe: function unsubscribe(eventName, callback) {\n\t var event;\n\t\n\t if (eventName) {\n\t event = getEvent(eventName);\n\t if (event && callback) {\n\t event.subscribers = event.subscribers.filter(function (subscriber) {\n\t return subscriber.callback !== callback;\n\t });\n\t } else {\n\t event.subscribers = [];\n\t }\n\t } else {\n\t clearEvents();\n\t }\n\t }\n\t };\n\t})();\n\t\n\t;\n\tmodule.exports = exports[\"default\"];\n\n/***/ },\n/* 73 */\n/***/ function(module, exports, __webpack_require__) {\n\n\t'use strict';\n\t\n\tObject.defineProperty(exports, '__esModule', {\n\t value: true\n\t});\n\tvar merge = __webpack_require__(37);\n\t\n\tvar streamRef, loadedDataHandler;\n\t\n\t/**\n\t * Wraps browser-specific getUserMedia\n\t * @param {Object} constraints\n\t * @param {Object} success Callback\n\t * @param {Object} failure Callback\n\t */\n\tfunction getUserMedia(constraints, success, failure) {\n\t if (typeof navigator.getUserMedia !== 'undefined') {\n\t navigator.getUserMedia(constraints, function (stream) {\n\t streamRef = stream;\n\t var videoSrc = window.URL && window.URL.createObjectURL(stream) || stream;\n\t success.apply(null, [videoSrc]);\n\t }, failure);\n\t } else {\n\t failure(new TypeError(\"getUserMedia not available\"));\n\t }\n\t}\n\t\n\tfunction loadedData(video, callback) {\n\t var attempts = 10;\n\t\n\t function checkVideo() {\n\t if (attempts > 0) {\n\t if (video.videoWidth > 0 && video.videoHeight > 0) {\n\t console.log(video.videoWidth + \"px x \" + video.videoHeight + \"px\");\n\t callback();\n\t } else {\n\t window.setTimeout(checkVideo, 500);\n\t }\n\t } else {\n\t callback('Unable to play video stream. Is webcam working?');\n\t }\n\t attempts--;\n\t }\n\t checkVideo();\n\t}\n\t\n\t/**\n\t * Tries to attach the camera-stream to a given video-element\n\t * and calls the callback function when the content is ready\n\t * @param {Object} constraints\n\t * @param {Object} video\n\t * @param {Object} callback\n\t */\n\tfunction initCamera(constraints, video, callback) {\n\t getUserMedia(constraints, function (src) {\n\t video.src = src;\n\t if (loadedDataHandler) {\n\t video.removeEventListener(\"loadeddata\", loadedDataHandler, false);\n\t }\n\t loadedDataHandler = loadedData.bind(null, video, callback);\n\t video.addEventListener('loadeddata', loadedDataHandler, false);\n\t video.play();\n\t }, function (e) {\n\t callback(e);\n\t });\n\t}\n\t\n\t/**\n\t * Normalizes the incoming constraints to satisfy the current browser\n\t * @param config\n\t * @param cb Callback which is called whenever constraints are created\n\t * @returns {*}\n\t */\n\tfunction normalizeConstraints(config, cb) {\n\t var constraints = {\n\t audio: false,\n\t video: true\n\t },\n\t videoConstraints = merge({\n\t width: 640,\n\t height: 480,\n\t minAspectRatio: 0,\n\t maxAspectRatio: 100,\n\t facing: \"environment\"\n\t }, config);\n\t\n\t if (typeof MediaStreamTrack !== 'undefined' && typeof MediaStreamTrack.getSources !== 'undefined') {\n\t MediaStreamTrack.getSources(function (sourceInfos) {\n\t var videoSourceId;\n\t for (var i = 0; i != sourceInfos.length; ++i) {\n\t var sourceInfo = sourceInfos[i];\n\t if (sourceInfo.kind == \"video\" && sourceInfo.facing == videoConstraints.facing) {\n\t videoSourceId = sourceInfo.id;\n\t }\n\t }\n\t constraints.video = {\n\t mandatory: {\n\t minWidth: videoConstraints.width,\n\t minHeight: videoConstraints.height,\n\t minAspectRatio: videoConstraints.minAspectRatio,\n\t maxAspectRatio: videoConstraints.maxAspectRatio\n\t },\n\t optional: [{\n\t sourceId: videoSourceId\n\t }]\n\t };\n\t return cb(constraints);\n\t });\n\t } else {\n\t constraints.video = {\n\t mediaSource: \"camera\",\n\t width: { min: videoConstraints.width, max: videoConstraints.width },\n\t height: { min: videoConstraints.height, max: videoConstraints.height },\n\t require: [\"width\", \"height\"]\n\t };\n\t return cb(constraints);\n\t }\n\t}\n\t\n\t/**\n\t * Requests the back-facing camera of the user. The callback is called\n\t * whenever the stream is ready to be consumed, or if an error occures.\n\t * @param {Object} video\n\t * @param {Object} callback\n\t */\n\tfunction _request(video, videoConstraints, callback) {\n\t normalizeConstraints(videoConstraints, function (constraints) {\n\t initCamera(constraints, video, callback);\n\t });\n\t}\n\t\n\texports['default'] = {\n\t request: function request(video, constraints, callback) {\n\t _request(video, constraints, callback);\n\t },\n\t release: function release() {\n\t var tracks = streamRef && streamRef.getVideoTracks();\n\t if (tracks.length) {\n\t tracks[0].stop();\n\t }\n\t streamRef = null;\n\t }\n\t};\n\tmodule.exports = exports['default'];\n\n/***/ },\n/* 74 */\n/***/ function(module, exports, __webpack_require__) {\n\n\t'use strict';\n\t\n\tObject.defineProperty(exports, '__esModule', {\n\t value: true\n\t});\n\t\n\tfunction _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }\n\t\n\tvar _image_debug = __webpack_require__(24);\n\t\n\tvar _image_debug2 = _interopRequireDefault(_image_debug);\n\t\n\tfunction contains(codeResult, list) {\n\t if (list) {\n\t return list.some(function (item) {\n\t return Object.keys(item).every(function (key) {\n\t return item[key] === codeResult[key];\n\t });\n\t });\n\t }\n\t return false;\n\t}\n\t\n\tfunction passesFilter(codeResult, filter) {\n\t if (typeof filter === 'function') {\n\t return filter(codeResult);\n\t }\n\t return true;\n\t}\n\t\n\texports['default'] = {\n\t create: function create(config) {\n\t var canvas = document.createElement(\"canvas\"),\n\t ctx = canvas.getContext(\"2d\"),\n\t results = [],\n\t capacity = config.capacity || 20,\n\t capture = config.capture === true;\n\t\n\t function matchesConstraints(codeResult) {\n\t return capacity && codeResult && !contains(codeResult, config.blacklist) && passesFilter(codeResult, config.filter);\n\t }\n\t\n\t return {\n\t addResult: function addResult(data, imageSize, codeResult) {\n\t var result = {};\n\t\n\t if (matchesConstraints(codeResult)) {\n\t capacity--;\n\t result.codeResult = codeResult;\n\t if (capture) {\n\t canvas.width = imageSize.x;\n\t canvas.height = imageSize.y;\n\t _image_debug2['default'].drawImage(data, imageSize, ctx);\n\t result.frame = canvas.toDataURL();\n\t }\n\t results.push(result);\n\t }\n\t },\n\t getResults: function getResults() {\n\t return results;\n\t }\n\t };\n\t }\n\t};\n\tmodule.exports = exports['default'];\n\n/***/ }\n/******/ ])\n});\n;\n\n\n/** WEBPACK FOOTER **\n ** quagga.min.js\n **/"," \t// The module cache\n \tvar installedModules = {};\n\n \t// The require function\n \tfunction __webpack_require__(moduleId) {\n\n \t\t// Check if module is in cache\n \t\tif(installedModules[moduleId])\n \t\t\treturn installedModules[moduleId].exports;\n\n \t\t// Create a new module (and put it into the cache)\n \t\tvar module = installedModules[moduleId] = {\n \t\t\texports: {},\n \t\t\tid: moduleId,\n \t\t\tloaded: false\n \t\t};\n\n \t\t// Execute the module function\n \t\tmodules[moduleId].call(module.exports, module, module.exports, __webpack_require__);\n\n \t\t// Flag the module as loaded\n \t\tmodule.loaded = true;\n\n \t\t// Return the exports of the module\n \t\treturn module.exports;\n \t}\n\n\n \t// expose the modules object (__webpack_modules__)\n \t__webpack_require__.m = modules;\n\n \t// expose the module cache\n \t__webpack_require__.c = installedModules;\n\n \t// __webpack_public_path__\n \t__webpack_require__.p = \"/\";\n\n \t// Load entry module and return exports\n \treturn __webpack_require__(0);\n\n\n\n/** WEBPACK FOOTER **\n ** webpack/bootstrap bbe7819afe77c7859a4a\n **/","import TypeDefs from './typedefs';\nimport InputStream from './input_stream';\nimport ImageWrapper from './image_wrapper';\nimport BarcodeLocator from './barcode_locator';\nimport BarcodeDecoder from './barcode_decoder';\nimport FrameGrabber from './frame_grabber';\nimport Config from './config';\nimport Events from './events';\nimport CameraAccess from './camera_access';\nimport ImageDebug from './image_debug';\nimport {vec2} from 'gl-matrix';\nimport ResultCollector from './result_collector';\n\nconst merge = require('lodash/object/merge');\n\nvar _inputStream,\n _framegrabber,\n _stopped,\n _canvasContainer = {\n ctx : {\n image : null,\n overlay : null\n },\n dom : {\n image : null,\n overlay : null\n }\n },\n _inputImageWrapper,\n _boxSize,\n _decoder,\n _workerPool = [],\n _onUIThread = true,\n _resultCollector,\n _config = {};\n\nfunction initializeData(imageWrapper) {\n initBuffers(imageWrapper);\n _decoder = BarcodeDecoder.create(_config.decoder, _inputImageWrapper);\n}\n\nfunction initConfig() {\n if (typeof document !== \"undefined\") {\n var vis = [{\n node: document.querySelector(\"div[data-controls]\"),\n prop: _config.controls\n }, {\n node: _canvasContainer.dom.overlay,\n prop: _config.visual.show\n }];\n\n for (var i = 0; i < vis.length; i++) {\n if (vis[i].node) {\n if (vis[i].prop === true) {\n vis[i].node.style.display = \"block\";\n } else {\n vis[i].node.style.display = \"none\";\n }\n }\n }\n }\n}\n\nfunction initInputStream(cb) {\n var video;\n if (_config.inputStream.type == \"VideoStream\") {\n video = document.createElement(\"video\");\n _inputStream = InputStream.createVideoStream(video);\n } else if (_config.inputStream.type == \"ImageStream\") {\n _inputStream = InputStream.createImageStream();\n } else if (_config.inputStream.type == \"LiveStream\") {\n var $viewport = document.querySelector(\"#interactive.viewport\");\n if ($viewport) {\n video = $viewport.querySelector(\"video\");\n if (!video) {\n video = document.createElement(\"video\");\n $viewport.appendChild(video);\n }\n }\n _inputStream = InputStream.createLiveStream(video);\n CameraAccess.request(video, _config.inputStream.constraints, function(err) {\n if (!err) {\n _inputStream.trigger(\"canrecord\");\n } else {\n return cb(err);\n }\n });\n }\n\n _inputStream.setAttribute(\"preload\", \"auto\");\n _inputStream.setAttribute(\"autoplay\", true);\n _inputStream.setInputStream(_config.inputStream);\n _inputStream.addEventListener(\"canrecord\", canRecord.bind(undefined, cb));\n}\n\nfunction canRecord(cb) {\n BarcodeLocator.checkImageConstraints(_inputStream, _config.locator);\n initCanvas();\n _framegrabber = FrameGrabber.create(_inputStream, _canvasContainer.dom.image);\n initConfig();\n\n if (_config.numOfWorkers > 0) {\n initWorkers(function() {\n console.log(\"Workers created\");\n ready(cb);\n });\n } else {\n initializeData();\n ready(cb);\n }\n}\n\nfunction ready(cb){\n _inputStream.play();\n cb();\n}\n\nfunction initCanvas() {\n if (typeof document !== \"undefined\") {\n var $viewport = document.querySelector(\"#interactive.viewport\");\n _canvasContainer.dom.image = document.querySelector(\"canvas.imgBuffer\");\n if (!_canvasContainer.dom.image) {\n _canvasContainer.dom.image = document.createElement(\"canvas\");\n _canvasContainer.dom.image.className = \"imgBuffer\";\n if ($viewport && _config.inputStream.type == \"ImageStream\") {\n $viewport.appendChild(_canvasContainer.dom.image);\n }\n }\n _canvasContainer.ctx.image = _canvasContainer.dom.image.getContext(\"2d\");\n _canvasContainer.dom.image.width = _inputStream.getCanvasSize().x;\n _canvasContainer.dom.image.height = _inputStream.getCanvasSize().y;\n\n _canvasContainer.dom.overlay = document.querySelector(\"canvas.drawingBuffer\");\n if (!_canvasContainer.dom.overlay) {\n _canvasContainer.dom.overlay = document.createElement(\"canvas\");\n _canvasContainer.dom.overlay.className = \"drawingBuffer\";\n if ($viewport) {\n $viewport.appendChild(_canvasContainer.dom.overlay);\n }\n var clearFix = document.createElement(\"br\");\n clearFix.setAttribute(\"clear\", \"all\");\n if ($viewport) {\n $viewport.appendChild(clearFix);\n }\n }\n _canvasContainer.ctx.overlay = _canvasContainer.dom.overlay.getContext(\"2d\");\n _canvasContainer.dom.overlay.width = _inputStream.getCanvasSize().x;\n _canvasContainer.dom.overlay.height = _inputStream.getCanvasSize().y;\n }\n}\n\nfunction initBuffers(imageWrapper) {\n if (imageWrapper) {\n _inputImageWrapper = imageWrapper;\n } else {\n _inputImageWrapper = new ImageWrapper({\n x : _inputStream.getWidth(),\n y : _inputStream.getHeight()\n });\n }\n\n console.log(_inputImageWrapper.size);\n _boxSize = [\n vec2.clone([0, 0]),\n vec2.clone([0, _inputImageWrapper.size.y]),\n vec2.clone([_inputImageWrapper.size.x, _inputImageWrapper.size.y]),\n vec2.clone([_inputImageWrapper.size.x, 0])\n ];\n BarcodeLocator.init(_inputImageWrapper, _config.locator);\n}\n\nfunction getBoundingBoxes() {\n if (_config.locate) {\n return BarcodeLocator.locate();\n } else {\n return [[\n vec2.clone(_boxSize[0]),\n vec2.clone(_boxSize[1]),\n vec2.clone(_boxSize[2]),\n vec2.clone(_boxSize[3])]];\n }\n}\n\nfunction transformResult(result) {\n var topRight = _inputStream.getTopRight(),\n xOffset = topRight.x,\n yOffset = topRight.y,\n i;\n\n if (!result || (xOffset === 0 && yOffset === 0)) {\n return;\n }\n\n\n if (result.line && result.line.length === 2) {\n moveLine(result.line);\n }\n if (result.boxes && result.boxes.length > 0) {\n for (i = 0; i < result.boxes.length; i++) {\n moveBox(result.boxes[i]);\n }\n }\n\n function moveBox(box) {\n var corner = box.length;\n\n while(corner--) {\n box[corner][0] += xOffset;\n box[corner][1] += yOffset;\n }\n }\n\n function moveLine(line) {\n line[0].x += xOffset;\n line[0].y += yOffset;\n line[1].x += xOffset;\n line[1].y += yOffset;\n }\n}\n\nfunction publishResult(result, imageData) {\n if (_onUIThread) {\n transformResult(result);\n if (imageData && result && result.codeResult) {\n if (_resultCollector) {\n _resultCollector.addResult(imageData, _inputStream.getCanvasSize(), result.codeResult);\n }\n }\n }\n\n Events.publish(\"processed\", result);\n if (result && result.codeResult) {\n Events.publish(\"detected\", result);\n }\n}\n\nfunction locateAndDecode() {\n var result,\n boxes;\n\n boxes = getBoundingBoxes();\n if (boxes) {\n result = _decoder.decodeFromBoundingBoxes(boxes);\n result = result || {};\n result.boxes = boxes;\n publishResult(result, _inputImageWrapper.data);\n } else {\n publishResult();\n }\n}\n\nfunction update() {\n var availableWorker;\n\n if (_onUIThread) {\n if (_workerPool.length > 0) {\n availableWorker = _workerPool.filter(function(workerThread) {\n return !workerThread.busy;\n })[0];\n if (availableWorker) {\n _framegrabber.attachData(availableWorker.imageData);\n } else {\n return; // all workers are busy\n }\n } else {\n _framegrabber.attachData(_inputImageWrapper.data);\n }\n if (_framegrabber.grab()) {\n if (availableWorker) {\n availableWorker.busy = true;\n availableWorker.worker.postMessage({\n cmd: 'process',\n imageData: availableWorker.imageData\n }, [availableWorker.imageData.buffer]);\n } else {\n locateAndDecode();\n }\n }\n } else {\n locateAndDecode();\n }\n}\n\nfunction start() {\n _stopped = false;\n ( function frame() {\n if (!_stopped) {\n update();\n if (_onUIThread && _config.inputStream.type == \"LiveStream\") {\n window.requestAnimFrame(frame);\n }\n }\n }());\n}\n\nfunction initWorkers(cb) {\n var i;\n _workerPool = [];\n\n for (i = 0; i < _config.numOfWorkers; i++) {\n initWorker(workerInitialized);\n }\n\n function workerInitialized(workerThread) {\n _workerPool.push(workerThread);\n if (_workerPool.length >= _config.numOfWorkers){\n cb();\n }\n }\n}\n\nfunction initWorker(cb) {\n var blobURL,\n workerThread = {\n worker: undefined,\n imageData: new Uint8Array(_inputStream.getWidth() * _inputStream.getHeight()),\n busy: true\n };\n\n blobURL = generateWorkerBlob();\n workerThread.worker = new Worker(blobURL);\n\n workerThread.worker.onmessage = function(e) {\n if (e.data.event === 'initialized') {\n URL.revokeObjectURL(blobURL);\n workerThread.busy = false;\n workerThread.imageData = new Uint8Array(e.data.imageData);\n console.log(\"Worker initialized\");\n return cb(workerThread);\n } else if (e.data.event === 'processed') {\n workerThread.imageData = new Uint8Array(e.data.imageData);\n workerThread.busy = false;\n publishResult(e.data.result, workerThread.imageData);\n } else if (e.data.event === 'error') {\n console.log(\"Worker error: \" + e.data.message);\n }\n };\n\n workerThread.worker.postMessage({\n cmd: 'init',\n size: {x: _inputStream.getWidth(), y: _inputStream.getHeight()},\n imageData: workerThread.imageData,\n config: _config\n }, [workerThread.imageData.buffer]);\n}\n\n\nfunction workerInterface(factory) {\n window = self;\n if (factory) {\n /* jshint ignore:start */\n var Quagga = factory();\n if (!Quagga) {\n self.postMessage({'event': 'error', message: 'Quagga could not be created'});\n return;\n }\n /* jshint ignore:end */\n }\n /* jshint ignore:start */\n var imageWrapper;\n\n self.onmessage = function(e) {\n if (e.data.cmd === 'init') {\n var config = e.data.config;\n config.numOfWorkers = 0;\n imageWrapper = new Quagga.ImageWrapper({\n x : e.data.size.x,\n y : e.data.size.y\n }, new Uint8Array(e.data.imageData));\n Quagga.init(config, ready, imageWrapper);\n Quagga.onProcessed(onProcessed);\n } else if (e.data.cmd === 'process') {\n imageWrapper.data = new Uint8Array(e.data.imageData);\n Quagga.start();\n } else if (e.data.cmd === 'setReaders') {\n Quagga.setReaders(e.data.readers);\n }\n };\n\n function onProcessed(result) {\n self.postMessage({'event': 'processed', imageData: imageWrapper.data, result: result}, [imageWrapper.data.buffer]);\n }\n\n function ready() {\n self.postMessage({'event': 'initialized', imageData: imageWrapper.data}, [imageWrapper.data.buffer]);\n }\n /* jshint ignore:end */\n}\n\nfunction generateWorkerBlob() {\n var blob,\n factorySource;\n\n /* jshint ignore:start */\n if (typeof __factorySource__ !== 'undefined') {\n factorySource = __factorySource__;\n }\n /* jshint ignore:end */\n\n blob = new Blob(['(' + workerInterface.toString() + ')(' + factorySource + ');'],\n {type : 'text/javascript'});\n\n return window.URL.createObjectURL(blob);\n}\n\nfunction setReaders(readers) {\n if (_decoder) {\n _decoder.setReaders(readers);\n } else if (_onUIThread && _workerPool.length > 0) {\n _workerPool.forEach(function(workerThread) {\n workerThread.worker.postMessage({cmd: 'setReaders', readers: readers});\n });\n }\n}\n\nexport default {\n init : function(config, cb, imageWrapper) {\n _config = merge({}, Config, config);\n if (imageWrapper) {\n _onUIThread = false;\n initializeData(imageWrapper);\n return cb();\n } else {\n initInputStream(cb);\n }\n },\n start : function() {\n start();\n },\n stop : function() {\n _stopped = true;\n _workerPool.forEach(function(workerThread) {\n workerThread.worker.terminate();\n console.log(\"Worker terminated!\");\n });\n _workerPool.length = 0;\n if (_config.inputStream.type === \"LiveStream\") {\n CameraAccess.release();\n _inputStream.clearEventHandlers();\n }\n },\n pause: function() {\n _stopped = true;\n },\n onDetected : function(callback) {\n Events.subscribe(\"detected\", callback);\n },\n offDetected: function(callback) {\n Events.unsubscribe(\"detected\", callback);\n },\n onProcessed: function(callback) {\n Events.subscribe(\"processed\", callback);\n },\n offProcessed: function(callback) {\n Events.unsubscribe(\"processed\", callback);\n },\n setReaders: function(readers) {\n setReaders(readers);\n },\n registerResultCollector: function(resultCollector) {\n if (resultCollector && typeof resultCollector.addResult === 'function') {\n _resultCollector = resultCollector;\n }\n },\n canvas : _canvasContainer,\n decodeSingle : function(config, resultCallback) {\n config = merge({\n inputStream: {\n type : \"ImageStream\",\n sequence : false,\n size: 800,\n src: config.src\n },\n numOfWorkers: 1,\n locator: {\n halfSample: false\n }\n }, config);\n this.init(config, function() {\n Events.once(\"processed\", function(result) {\n _stopped = true;\n resultCallback.call(null, result);\n }, true);\n start();\n });\n },\n ImageWrapper: ImageWrapper,\n ImageDebug: ImageDebug,\n ResultCollector: ResultCollector\n};\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/quagga.js\n **/","/*\n * typedefs.js\n * Normalizes browser-specific prefixes\n */\n\n if (typeof window !== 'undefined') {\n window.requestAnimFrame = (function () {\n return window.requestAnimationFrame ||\n window.webkitRequestAnimationFrame ||\n window.mozRequestAnimationFrame ||\n window.oRequestAnimationFrame ||\n window.msRequestAnimationFrame ||\n function (/* function FrameRequestCallback */ callback, /* DOMElement Element */ element) {\n window.setTimeout(callback, 1000 / 60);\n };\n })();\n\n navigator.getUserMedia = navigator.getUserMedia || navigator.webkitGetUserMedia || navigator.mozGetUserMedia || navigator.msGetUserMedia;\n window.URL = window.URL || window.webkitURL || window.mozURL || window.msURL;\n }\n Math.imul = Math.imul || function(a, b) {\n var ah = (a >>> 16) & 0xffff,\n al = a & 0xffff,\n bh = (b >>> 16) & 0xffff,\n bl = b & 0xffff;\n // the shift by 0 fixes the sign on the high part\n // the final |0 converts the unsigned value into a signed value\n return ((al * bl) + (((ah * bl + al * bh) << 16) >>> 0)|0);\n };\n\nexport default {\n \n}\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/typedefs.js\n **/","import ImageLoader from './image_loader';\n\nvar InputStream = {};\nInputStream.createVideoStream = function(video) {\n var that = {},\n _config = null,\n _eventNames = ['canrecord', 'ended'],\n _eventHandlers = {},\n _calculatedWidth,\n _calculatedHeight,\n _topRight = {x: 0, y: 0},\n _canvasSize = {x: 0, y: 0};\n\n function initSize() {\n var width = video.videoWidth,\n height = video.videoHeight;\n\n _calculatedWidth = _config.size ? width/height > 1 ? _config.size : Math.floor((width/height) * _config.size) : width;\n _calculatedHeight = _config.size ? width/height > 1 ? Math.floor((height/width) * _config.size) : _config.size : height;\n\n _canvasSize.x = _calculatedWidth;\n _canvasSize.y = _calculatedHeight;\n }\n\n that.getRealWidth = function() {\n return video.videoWidth;\n };\n\n that.getRealHeight = function() {\n return video.videoHeight;\n };\n\n that.getWidth = function() {\n return _calculatedWidth;\n };\n\n that.getHeight = function() {\n return _calculatedHeight;\n };\n\n that.setWidth = function(width) {\n _calculatedWidth = width;\n };\n\n that.setHeight = function(height) {\n _calculatedHeight = height;\n };\n\n that.setInputStream = function(config) {\n _config = config;\n video.src = (typeof config.src !== 'undefined') ? config.src : '';\n };\n\n that.ended = function() {\n return video.ended;\n };\n\n that.getConfig = function() {\n return _config;\n };\n\n that.setAttribute = function(name, value) {\n video.setAttribute(name, value);\n };\n\n that.pause = function() {\n video.pause();\n };\n\n that.play = function() {\n video.play();\n };\n\n that.setCurrentTime = function(time) {\n if (_config.type !== \"LiveStream\")\n video.currentTime = time;\n };\n\n that.addEventListener = function(event, f, bool) {\n if (_eventNames.indexOf(event) !== -1) {\n if (!_eventHandlers[event]) {\n _eventHandlers[event] = [];\n }\n _eventHandlers[event].push(f);\n } else {\n video.addEventListener(event, f, bool);\n }\n };\n\n that.clearEventHandlers = function() {\n _eventNames.forEach(function(eventName) {\n var handlers = _eventHandlers[eventName];\n if (handlers && handlers.length > 0) {\n handlers.forEach(function(handler) {\n video.removeEventListener(eventName, handler);\n });\n }\n });\n };\n\n that.trigger = function(eventName, args) {\n var j,\n handlers = _eventHandlers[eventName];\n\n if (eventName === 'canrecord') {\n initSize();\n }\n if (handlers && handlers.length > 0) {\n for ( j = 0; j < handlers.length; j++) {\n handlers[j].apply(that, args);\n }\n }\n };\n\n that.setTopRight = function(topRight) {\n _topRight.x = topRight.x;\n _topRight.y = topRight.y;\n };\n\n that.getTopRight = function() {\n return _topRight;\n };\n\n that.setCanvasSize = function(size) {\n _canvasSize.x = size.x;\n _canvasSize.y = size.y;\n };\n\n that.getCanvasSize = function() {\n return _canvasSize;\n };\n\n that.getFrame = function() {\n return video;\n };\n\n return that;\n};\n\nInputStream.createLiveStream = function(video) {\n video.setAttribute(\"autoplay\", true);\n var that = InputStream.createVideoStream(video);\n\n that.ended = function() {\n return false;\n };\n\n return that;\n};\n\nInputStream.createImageStream = function() {\n var that = {};\n var _config = null;\n\n var width = 0,\n height = 0,\n frameIdx = 0,\n paused = true,\n loaded = false,\n imgArray = null,\n size = 0,\n offset = 1,\n baseUrl = null,\n ended = false,\n calculatedWidth,\n calculatedHeight,\n _eventNames = ['canrecord', 'ended'],\n _eventHandlers = {},\n _topRight = {x: 0, y: 0},\n _canvasSize = {x: 0, y: 0};\n\n function loadImages() {\n loaded = false;\n ImageLoader.load(baseUrl, function(imgs) {\n imgArray = imgs;\n width = imgs[0].width;\n height = imgs[0].height;\n calculatedWidth = _config.size ? width/height > 1 ? _config.size : Math.floor((width/height) * _config.size) : width;\n calculatedHeight = _config.size ? width/height > 1 ? Math.floor((height/width) * _config.size) : _config.size : height;\n _canvasSize.x = calculatedWidth;\n _canvasSize.y = calculatedHeight;\n loaded = true;\n frameIdx = 0;\n setTimeout(function() {\n publishEvent(\"canrecord\", []);\n }, 0);\n }, offset, size, _config.sequence);\n }\n\n function publishEvent(eventName, args) {\n var j,\n handlers = _eventHandlers[eventName];\n\n if (handlers && handlers.length > 0) {\n for ( j = 0; j < handlers.length; j++) {\n handlers[j].apply(that, args);\n }\n }\n }\n\n\n that.trigger = publishEvent;\n\n that.getWidth = function() {\n return calculatedWidth;\n };\n\n that.getHeight = function() {\n return calculatedHeight;\n };\n\n that.setWidth = function(width) {\n calculatedWidth = width;\n };\n\n that.setHeight = function(height) {\n calculatedHeight = height;\n };\n\n that.getRealWidth = function() {\n return width;\n };\n\n that.getRealHeight = function() {\n return height;\n };\n\n that.setInputStream = function(stream) {\n _config = stream;\n if (stream.sequence === false) {\n baseUrl = stream.src;\n size = 1;\n } else {\n baseUrl = stream.src;\n size = stream.length;\n }\n loadImages();\n };\n\n that.ended = function() {\n return ended;\n };\n\n that.setAttribute = function() {};\n\n that.getConfig = function() {\n return _config;\n };\n\n that.pause = function() {\n paused = true;\n };\n\n that.play = function() {\n paused = false;\n };\n\n that.setCurrentTime = function(time) {\n frameIdx = time;\n };\n\n that.addEventListener = function(event, f) {\n if (_eventNames.indexOf(event) !== -1) {\n if (!_eventHandlers[event]) {\n _eventHandlers[event] = [];\n }\n _eventHandlers[event].push(f);\n }\n };\n\n that.setTopRight = function(topRight) {\n _topRight.x = topRight.x;\n _topRight.y = topRight.y;\n };\n\n that.getTopRight = function() {\n return _topRight;\n };\n\n that.setCanvasSize = function(size) {\n _canvasSize.x = size.x;\n _canvasSize.y = size.y;\n };\n\n that.getCanvasSize = function() {\n return _canvasSize;\n };\n\n that.getFrame = function() {\n var frame;\n\n if (!loaded){\n return null;\n }\n if (!paused) {\n frame = imgArray[frameIdx];\n if (frameIdx < (size - 1)) {\n frameIdx++;\n } else {\n setTimeout(function() {\n ended = true;\n publishEvent(\"ended\", []);\n }, 0);\n }\n }\n return frame;\n };\n\n return that;\n};\n\nexport default InputStream;\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/input_stream.js\n **/","var ImageLoader = {};\nImageLoader.load = function(directory, callback, offset, size, sequence) {\n var htmlImagesSrcArray = new Array(size),\n htmlImagesArray = new Array(htmlImagesSrcArray.length),\n i,\n img,\n num;\n\n if (sequence === false) {\n htmlImagesSrcArray[0] = directory;\n } else {\n for ( i = 0; i < htmlImagesSrcArray.length; i++) {\n num = (offset + i);\n htmlImagesSrcArray[i] = directory + \"image-\" + (\"00\" + num).slice(-3) + \".jpg\";\n }\n }\n htmlImagesArray.notLoaded = [];\n htmlImagesArray.addImage = function(img) {\n htmlImagesArray.notLoaded.push(img);\n };\n htmlImagesArray.loaded = function(loadedImg) {\n var notloadedImgs = htmlImagesArray.notLoaded;\n for (var x = 0; x < notloadedImgs.length; x++) {\n if (notloadedImgs[x] == loadedImg) {\n notloadedImgs.splice(x, 1);\n for (var y = 0; y < htmlImagesSrcArray.length; y++) {\n var imgName = htmlImagesSrcArray[y].substr(htmlImagesSrcArray[y].lastIndexOf(\"/\"));\n if (loadedImg.src.lastIndexOf(imgName) != -1) {\n htmlImagesArray[y] = loadedImg;\n break;\n }\n }\n break;\n }\n }\n if (notloadedImgs.length === 0) {\n console.log(\"Images loaded\");\n callback.apply(null, [htmlImagesArray]);\n }\n };\n\n for ( i = 0; i < htmlImagesSrcArray.length; i++) {\n img = new Image();\n htmlImagesArray.addImage(img);\n addOnloadHandler(img, htmlImagesArray);\n img.src = htmlImagesSrcArray[i];\n }\n};\n\nfunction addOnloadHandler(img, htmlImagesArray) {\n img.onload = function() {\n htmlImagesArray.loaded(this);\n };\n}\n\nexport default (ImageLoader);\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/image_loader.js\n **/","import SubImage from './subImage';\nimport CVUtils from './cv_utils';\nimport ArrayHelper from './array_helper';\nimport {vec2, mat2} from 'gl-matrix';\n\n/**\n * Represents a basic image combining the data and size.\n * In addition, some methods for manipulation are contained.\n * @param size {x,y} The size of the image in pixel\n * @param data {Array} If given, a flat array containing the pixel data\n * @param ArrayType {Type} If given, the desired DataType of the Array (may be typed/non-typed)\n * @param initialize {Boolean} Indicating if the array should be initialized on creation.\n * @returns {ImageWrapper}\n */\nfunction ImageWrapper(size, data, ArrayType, initialize) {\n if (!data) {\n if (ArrayType) {\n this.data = new ArrayType(size.x * size.y);\n if (ArrayType === Array && initialize) {\n ArrayHelper.init(this.data, 0);\n }\n } else {\n this.data = new Uint8Array(size.x * size.y);\n if (Uint8Array === Array && initialize) {\n ArrayHelper.init(this.data, 0);\n }\n }\n\n } else {\n this.data = data;\n }\n this.size = size;\n}\n\n/**\n * tests if a position is within the image with a given offset\n * @param imgRef {x, y} The location to test\n * @param border Number the padding value in pixel\n * @returns {Boolean} true if location inside the image's border, false otherwise\n * @see cvd/image.h\n */\nImageWrapper.prototype.inImageWithBorder = function(imgRef, border) {\n return (imgRef.x >= border) && (imgRef.y >= border) && (imgRef.x < (this.size.x - border)) && (imgRef.y < (this.size.y - border));\n};\n\n/**\n * Transforms an image according to the given affine-transformation matrix.\n * @param inImg ImageWrapper a image containing the information to be extracted.\n * @param outImg ImageWrapper the image to be filled. The whole image out image is filled by the in image.\n * @param M mat2 the matrix used to map point in the out matrix to those in the in matrix\n * @param inOrig vec2 origin in the in image\n * @param outOrig vec2 origin in the out image\n * @returns Number the number of pixels not in the in image\n * @see cvd/vision.h\n */\nImageWrapper.transform = function(inImg, outImg, M, inOrig, outOrig) {\n var w = outImg.size.x, h = outImg.size.y, iw = inImg.size.x, ih = inImg.size.y;\n var across = vec2.clone([M[0], M[2]]);\n var down = vec2.clone([M[1], M[3]]);\n var defaultValue = 0;\n\n var p0 = vec2.subtract(inOrig, mat2.xVec2(M, outOrig, vec2.clone()), vec2.clone());\n\n var min_x = p0[0], min_y = p0[1];\n var max_x = min_x, max_y = min_y;\n var p, i, j;\n\n var sampleFunc = ImageWrapper.sample;\n\n if (across[0] < 0)\n min_x += w * across[0];\n else\n max_x += w * across[0];\n\n if (down[0] < 0)\n min_x += h * down[0];\n else\n max_x += h * down[0];\n\n if (across[1] < 0)\n min_y += w * across[1];\n else\n max_y += w * across[1];\n\n if (down[1] < 0)\n min_y += h * down[1];\n else\n max_y += h * down[1];\n\n var carrigeReturn = vec2.subtract(down, vec2.scale(across, w, vec2.clone()), vec2.clone());\n\n if (min_x >= 0 && min_y >= 0 && max_x < iw - 1 && max_y < ih - 1) {\n p = p0;\n for ( i = 0; i < h; ++i, vec2.add(p, carrigeReturn))\n for ( j = 0; j < w; ++j, vec2.add(p, across))\n outImg.set(j, i, sampleFunc(inImg, p[0], p[1]));\n return 0;\n } else {\n var x_bound = iw - 1;\n var y_bound = ih - 1;\n var count = 0;\n p = p0;\n for ( i = 0; i < h; ++i, vec2.add(p, carrigeReturn)) {\n for ( j = 0; j < w; ++j, vec2.add(p, across)) {\n if (0 <= p[0] && 0 <= p[1] && p[0] < x_bound && p[1] < y_bound) {\n outImg.set(j, i, sampleFunc(inImg, p[0], p[1]));\n } else {\n outImg.set(j, i, defaultValue); ++count;\n }\n }\n }\n return count;\n }\n};\n\n/**\n * Performs bilinear sampling\n * @param inImg Image to extract sample from\n * @param x the x-coordinate\n * @param y the y-coordinate\n * @returns the sampled value\n * @see cvd/vision.h\n */\nImageWrapper.sample = function(inImg, x, y) {\n var lx = Math.floor(x);\n var ly = Math.floor(y);\n var w = inImg.size.x;\n var base = ly * inImg.size.x + lx;\n var a = inImg.data[base + 0];\n var b = inImg.data[base + 1];\n var c = inImg.data[base + w];\n var d = inImg.data[base + w + 1];\n var e = a - b;\n x -= lx;\n y -= ly;\n\n var result = Math.floor(x * (y * (e - c + d) - e) + y * (c - a) + a);\n return result;\n};\n\n/**\n * Initializes a given array. Sets each element to zero.\n * @param array {Array} The array to initialize\n */\nImageWrapper.clearArray = function(array) {\n var l = array.length;\n while (l--) {\n array[l] = 0;\n }\n};\n\n/**\n * Creates a {SubImage} from the current image ({this}).\n * @param from {ImageRef} The position where to start the {SubImage} from. (top-left corner)\n * @param size {ImageRef} The size of the resulting image\n * @returns {SubImage} A shared part of the original image\n */\nImageWrapper.prototype.subImage = function(from, size) {\n return new SubImage(from, size, this);\n};\n\n/**\n * Creates an {ImageWrapper) and copies the needed underlying image-data area\n * @param imageWrapper {ImageWrapper} The target {ImageWrapper} where the data should be copied\n * @param from {ImageRef} The location where to copy from (top-left location)\n */\nImageWrapper.prototype.subImageAsCopy = function(imageWrapper, from) {\n var sizeY = imageWrapper.size.y, sizeX = imageWrapper.size.x;\n var x, y;\n for ( x = 0; x < sizeX; x++) {\n for ( y = 0; y < sizeY; y++) {\n imageWrapper.data[y * sizeX + x] = this.data[(from.y + y) * this.size.x + from.x + x];\n }\n }\n};\n\nImageWrapper.prototype.copyTo = function(imageWrapper) {\n var length = this.data.length, srcData = this.data, dstData = imageWrapper.data;\n\n while (length--) {\n dstData[length] = srcData[length];\n }\n};\n\n/**\n * Retrieves a given pixel position from the image\n * @param x {Number} The x-position\n * @param y {Number} The y-position\n * @returns {Number} The grayscale value at the pixel-position\n */\nImageWrapper.prototype.get = function(x, y) {\n return this.data[y * this.size.x + x];\n};\n\n/**\n * Retrieves a given pixel position from the image\n * @param x {Number} The x-position\n * @param y {Number} The y-position\n * @returns {Number} The grayscale value at the pixel-position\n */\nImageWrapper.prototype.getSafe = function(x, y) {\n var i;\n\n if (!this.indexMapping) {\n this.indexMapping = {\n x : [],\n y : []\n };\n for (i = 0; i < this.size.x; i++) {\n this.indexMapping.x[i] = i;\n this.indexMapping.x[i + this.size.x] = i;\n }\n for (i = 0; i < this.size.y; i++) {\n this.indexMapping.y[i] = i;\n this.indexMapping.y[i + this.size.y] = i;\n }\n }\n return this.data[(this.indexMapping.y[y + this.size.y]) * this.size.x + this.indexMapping.x[x + this.size.x]];\n};\n\n/**\n * Sets a given pixel position in the image\n * @param x {Number} The x-position\n * @param y {Number} The y-position\n * @param value {Number} The grayscale value to set\n * @returns {ImageWrapper} The Image itself (for possible chaining)\n */\nImageWrapper.prototype.set = function(x, y, value) {\n this.data[y * this.size.x + x] = value;\n return this;\n};\n\n/**\n * Sets the border of the image (1 pixel) to zero\n */\nImageWrapper.prototype.zeroBorder = function() {\n var i, width = this.size.x, height = this.size.y, data = this.data;\n for ( i = 0; i < width; i++) {\n data[i] = data[(height - 1) * width + i] = 0;\n }\n for ( i = 1; i < height - 1; i++) {\n data[i * width] = data[i * width + (width - 1)] = 0;\n }\n};\n\n/**\n * Inverts a binary image in place\n */\nImageWrapper.prototype.invert = function() {\n var data = this.data, length = data.length;\n\n while (length--) {\n data[length] = data[length] ? 0 : 1;\n }\n\n};\n\nImageWrapper.prototype.convolve = function(kernel) {\n var x, y, kx, ky, kSize = (kernel.length / 2) | 0, accu = 0;\n for ( y = 0; y < this.size.y; y++) {\n for ( x = 0; x < this.size.x; x++) {\n accu = 0;\n for ( ky = -kSize; ky <= kSize; ky++) {\n for ( kx = -kSize; kx <= kSize; kx++) {\n accu += kernel[ky+kSize][kx + kSize] * this.getSafe(x + kx, y + ky);\n }\n }\n this.data[y * this.size.x + x] = accu;\n }\n }\n};\n\nImageWrapper.prototype.moments = function(labelcount) {\n var data = this.data,\n x,\n y,\n height = this.size.y,\n width = this.size.x,\n val,\n ysq,\n labelsum = [],\n i,\n label,\n mu11,\n mu02,\n mu20,\n x_,\n y_,\n tmp,\n result = [],\n PI = Math.PI,\n PI_4 = PI / 4;\n\n if (labelcount <= 0) {\n return result;\n }\n\n for ( i = 0; i < labelcount; i++) {\n labelsum[i] = {\n m00 : 0,\n m01 : 0,\n m10 : 0,\n m11 : 0,\n m02 : 0,\n m20 : 0,\n theta : 0,\n rad : 0\n };\n }\n\n for ( y = 0; y < height; y++) {\n ysq = y * y;\n for ( x = 0; x < width; x++) {\n val = data[y * width + x];\n if (val > 0) {\n label = labelsum[val - 1];\n label.m00 += 1;\n label.m01 += y;\n label.m10 += x;\n label.m11 += x * y;\n label.m02 += ysq;\n label.m20 += x * x;\n }\n }\n }\n\n for ( i = 0; i < labelcount; i++) {\n label = labelsum[i];\n if (!isNaN(label.m00) && label.m00 !== 0) {\n x_ = label.m10 / label.m00;\n y_ = label.m01 / label.m00;\n mu11 = label.m11 / label.m00 - x_ * y_;\n mu02 = label.m02 / label.m00 - y_ * y_;\n mu20 = label.m20 / label.m00 - x_ * x_;\n tmp = (mu02 - mu20) / (2 * mu11);\n tmp = 0.5 * Math.atan(tmp) + (mu11 >= 0 ? PI_4 : -PI_4 ) + PI;\n label.theta = (tmp * 180 / PI + 90) % 180 - 90;\n if (label.theta < 0) {\n label.theta += 180;\n }\n label.rad = tmp > PI ? tmp - PI : tmp;\n label.vec = vec2.clone([Math.cos(tmp), Math.sin(tmp)]);\n result.push(label);\n }\n }\n\n return result;\n};\n\n/**\n * Displays the {ImageWrapper} in a given canvas\n * @param canvas {Canvas} The canvas element to write to\n * @param scale {Number} Scale which is applied to each pixel-value\n */\nImageWrapper.prototype.show = function(canvas, scale) {\n var ctx,\n frame,\n data,\n current,\n pixel,\n x,\n y;\n\n if (!scale) {\n scale = 1.0;\n }\n ctx = canvas.getContext('2d');\n canvas.width = this.size.x;\n canvas.height = this.size.y;\n frame = ctx.getImageData(0, 0, canvas.width, canvas.height);\n data = frame.data;\n current = 0;\n for (y = 0; y < this.size.y; y++) {\n for (x = 0; x < this.size.x; x++) {\n pixel = y * this.size.x + x;\n current = this.get(x, y) * scale;\n data[pixel * 4 + 0] = current;\n data[pixel * 4 + 1] = current;\n data[pixel * 4 + 2] = current;\n data[pixel * 4 + 3] = 255;\n }\n }\n //frame.data = data;\n ctx.putImageData(frame, 0, 0);\n};\n\n/**\n * Displays the {SubImage} in a given canvas\n * @param canvas {Canvas} The canvas element to write to\n * @param scale {Number} Scale which is applied to each pixel-value\n */\nImageWrapper.prototype.overlay = function(canvas, scale, from) {\n if (!scale || scale < 0 || scale > 360) {\n scale = 360;\n }\n var hsv = [0, 1, 1];\n var rgb = [0, 0, 0];\n var whiteRgb = [255, 255, 255];\n var blackRgb = [0, 0, 0];\n var result = [];\n var ctx = canvas.getContext('2d');\n var frame = ctx.getImageData(from.x, from.y, this.size.x, this.size.y);\n var data = frame.data;\n var length = this.data.length;\n while (length--) {\n hsv[0] = this.data[length] * scale;\n result = hsv[0] <= 0 ? whiteRgb : hsv[0] >= 360 ? blackRgb : CVUtils.hsv2rgb(hsv, rgb);\n data[length * 4 + 0] = result[0];\n data[length * 4 + 1] = result[1];\n data[length * 4 + 2] = result[2];\n data[length * 4 + 3] = 255;\n }\n ctx.putImageData(frame, from.x, from.y);\n};\n\nexport default ImageWrapper;\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/image_wrapper.js\n **/","/**\n * Construct representing a part of another {ImageWrapper}. Shares data\n * between the parent and the child.\n * @param from {ImageRef} The position where to start the {SubImage} from. (top-left corner)\n * @param size {ImageRef} The size of the resulting image\n * @param I {ImageWrapper} The {ImageWrapper} to share from\n * @returns {SubImage} A shared part of the original image\n */\nfunction SubImage(from, size, I) {\n if (!I) {\n I = {\n data : null,\n size : size\n };\n }\n this.data = I.data;\n this.originalSize = I.size;\n this.I = I;\n\n this.from = from;\n this.size = size;\n}\n\n/**\n * Displays the {SubImage} in a given canvas\n * @param canvas {Canvas} The canvas element to write to\n * @param scale {Number} Scale which is applied to each pixel-value\n */\nSubImage.prototype.show = function(canvas, scale) {\n var ctx,\n frame,\n data,\n current,\n y,\n x,\n pixel;\n\n if (!scale) {\n scale = 1.0;\n }\n ctx = canvas.getContext('2d');\n canvas.width = this.size.x;\n canvas.height = this.size.y;\n frame = ctx.getImageData(0, 0, canvas.width, canvas.height);\n data = frame.data;\n current = 0;\n for (y = 0; y < this.size.y; y++) {\n for (x = 0; x < this.size.x; x++) {\n pixel = y * this.size.x + x;\n current = this.get(x, y) * scale;\n data[pixel * 4 + 0] = current;\n data[pixel * 4 + 1] = current;\n data[pixel * 4 + 2] = current;\n data[pixel * 4 + 3] = 255;\n }\n }\n frame.data = data;\n ctx.putImageData(frame, 0, 0);\n};\n\n/**\n * Retrieves a given pixel position from the {SubImage}\n * @param x {Number} The x-position\n * @param y {Number} The y-position\n * @returns {Number} The grayscale value at the pixel-position\n */\nSubImage.prototype.get = function(x, y) {\n return this.data[(this.from.y + y) * this.originalSize.x + this.from.x + x];\n};\n\n/**\n * Updates the underlying data from a given {ImageWrapper}\n * @param image {ImageWrapper} The updated image\n */\nSubImage.prototype.updateData = function(image) {\n this.originalSize = image.size;\n this.data = image.data;\n};\n\n/**\n * Updates the position of the shared area\n * @param from {x,y} The new location\n * @returns {SubImage} returns {this} for possible chaining\n */\nSubImage.prototype.updateFrom = function(from) {\n this.from = from;\n return this;\n};\n\nexport default (SubImage);\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/subImage.js\n **/","import Cluster2 from './cluster';\nimport ArrayHelper from './array_helper';\nimport {vec2, vec3} from 'gl-matrix';\n\nvar CVUtils = {};\n\n/**\n * @param x x-coordinate\n * @param y y-coordinate\n * @return ImageReference {x,y} Coordinate\n */\nCVUtils.imageRef = function(x, y) {\n var that = {\n x : x,\n y : y,\n toVec2 : function() {\n return vec2.clone([this.x, this.y]);\n },\n toVec3 : function() {\n return vec3.clone([this.x, this.y, 1]);\n },\n round : function() {\n this.x = this.x > 0.0 ? Math.floor(this.x + 0.5) : Math.floor(this.x - 0.5);\n this.y = this.y > 0.0 ? Math.floor(this.y + 0.5) : Math.floor(this.y - 0.5);\n return this;\n }\n };\n return that;\n};\n\n/**\n * Computes an integral image of a given grayscale image.\n * @param imageDataContainer {ImageDataContainer} the image to be integrated\n */\nCVUtils.computeIntegralImage2 = function(imageWrapper, integralWrapper) {\n var imageData = imageWrapper.data;\n var width = imageWrapper.size.x;\n var height = imageWrapper.size.y;\n var integralImageData = integralWrapper.data;\n var sum = 0, posA = 0, posB = 0, posC = 0, posD = 0, x, y;\n\n // sum up first column\n posB = width;\n sum = 0;\n for ( y = 1; y < height; y++) {\n sum += imageData[posA];\n integralImageData[posB] += sum;\n posA += width;\n posB += width;\n }\n\n posA = 0;\n posB = 1;\n sum = 0;\n for ( x = 1; x < width; x++) {\n sum += imageData[posA];\n integralImageData[posB] += sum;\n posA++;\n posB++;\n }\n\n for ( y = 1; y < height; y++) {\n posA = y * width + 1;\n posB = (y - 1) * width + 1;\n posC = y * width;\n posD = (y - 1) * width;\n for ( x = 1; x < width; x++) {\n integralImageData[posA] += imageData[posA] + integralImageData[posB] + integralImageData[posC] - integralImageData[posD];\n posA++;\n posB++;\n posC++;\n posD++;\n }\n }\n};\n\nCVUtils.computeIntegralImage = function(imageWrapper, integralWrapper) {\n var imageData = imageWrapper.data;\n var width = imageWrapper.size.x;\n var height = imageWrapper.size.y;\n var integralImageData = integralWrapper.data;\n var sum = 0;\n\n // sum up first row\n for (var i = 0; i < width; i++) {\n sum += imageData[i];\n integralImageData[i] = sum;\n }\n\n for (var v = 1; v < height; v++) {\n sum = 0;\n for (var u = 0; u < width; u++) {\n sum += imageData[v * width + u];\n integralImageData[((v) * width) + u] = sum + integralImageData[(v - 1) * width + u];\n }\n }\n};\n\nCVUtils.thresholdImage = function(imageWrapper, threshold, targetWrapper) {\n if (!targetWrapper) {\n targetWrapper = imageWrapper;\n }\n var imageData = imageWrapper.data, length = imageData.length, targetData = targetWrapper.data;\n\n while (length--) {\n targetData[length] = imageData[length] < threshold ? 1 : 0;\n }\n};\n\nCVUtils.computeHistogram = function(imageWrapper, bitsPerPixel) {\n if (!bitsPerPixel) {\n bitsPerPixel = 8;\n }\n var imageData = imageWrapper.data,\n length = imageData.length,\n bitShift = 8 - bitsPerPixel,\n bucketCnt = 1 << bitsPerPixel,\n hist = new Int32Array(bucketCnt);\n\n while (length--) {\n hist[imageData[length] >> bitShift]++;\n }\n return hist;\n};\n\nCVUtils.sharpenLine = function(line) {\n var i,\n length = line.length,\n left = line[0],\n center = line[1],\n right;\n\n for (i = 1; i < length - 1; i++) {\n right = line[i + 1];\n // -1 4 -1 kernel\n line[i-1] = (((center * 2) - left - right)) & 255;\n left = center;\n center = right;\n }\n return line;\n};\n\nCVUtils.determineOtsuThreshold = function(imageWrapper, bitsPerPixel) {\n if (!bitsPerPixel) {\n bitsPerPixel = 8;\n }\n var hist,\n threshold,\n bitShift = 8 - bitsPerPixel;\n\n function px(init, end) {\n var sum = 0, i;\n for ( i = init; i <= end; i++) {\n sum += hist[i];\n }\n return sum;\n }\n\n function mx(init, end) {\n var i, sum = 0;\n\n for ( i = init; i <= end; i++) {\n sum += i * hist[i];\n }\n\n return sum;\n }\n\n function determineThreshold() {\n var vet = [0], p1, p2, p12, k, m1, m2, m12,\n max = (1 << bitsPerPixel) - 1;\n\n hist = CVUtils.computeHistogram(imageWrapper, bitsPerPixel);\n for ( k = 1; k < max; k++) {\n p1 = px(0, k);\n p2 = px(k + 1, max);\n p12 = p1 * p2;\n if (p12 === 0) {\n p12 = 1;\n }\n m1 = mx(0, k) * p2;\n m2 = mx(k + 1, max) * p1;\n m12 = m1 - m2;\n vet[k] = m12 * m12 / p12;\n }\n return ArrayHelper.maxIndex(vet);\n }\n\n threshold = determineThreshold();\n return threshold << bitShift;\n};\n\nCVUtils.otsuThreshold = function(imageWrapper, targetWrapper) {\n var threshold = CVUtils.determineOtsuThreshold(imageWrapper);\n\n CVUtils.thresholdImage(imageWrapper, threshold, targetWrapper);\n return threshold;\n};\n\n// local thresholding\nCVUtils.computeBinaryImage = function(imageWrapper, integralWrapper, targetWrapper) {\n CVUtils.computeIntegralImage(imageWrapper, integralWrapper);\n\n if (!targetWrapper) {\n targetWrapper = imageWrapper;\n }\n var imageData = imageWrapper.data;\n var targetData = targetWrapper.data;\n var width = imageWrapper.size.x;\n var height = imageWrapper.size.y;\n var integralImageData = integralWrapper.data;\n var sum = 0, v, u, kernel = 3, A, B, C, D, avg, size = (kernel * 2 + 1) * (kernel * 2 + 1);\n\n // clear out top & bottom-border\n for ( v = 0; v <= kernel; v++) {\n for ( u = 0; u < width; u++) {\n targetData[((v) * width) + u] = 0;\n targetData[(((height - 1) - v) * width) + u] = 0;\n }\n }\n\n // clear out left & right border\n for ( v = kernel; v < height - kernel; v++) {\n for ( u = 0; u <= kernel; u++) {\n targetData[((v) * width) + u] = 0;\n targetData[((v) * width) + (width - 1 - u)] = 0;\n }\n }\n\n for ( v = kernel + 1; v < height - kernel - 1; v++) {\n for ( u = kernel + 1; u < width - kernel; u++) {\n A = integralImageData[(v - kernel - 1) * width + (u - kernel - 1)];\n B = integralImageData[(v - kernel - 1) * width + (u + kernel)];\n C = integralImageData[(v + kernel) * width + (u - kernel - 1)];\n D = integralImageData[(v + kernel) * width + (u + kernel)];\n sum = D - C - B + A;\n avg = sum / (size);\n targetData[v * width + u] = imageData[v * width + u] > (avg + 5) ? 0 : 1;\n }\n }\n};\n\nCVUtils.cluster = function(points, threshold, property) {\n var i, k, cluster, point, clusters = [];\n\n if (!property) {\n property = \"rad\";\n }\n\n function addToCluster(point) {\n var found = false;\n for ( k = 0; k < clusters.length; k++) {\n cluster = clusters[k];\n if (cluster.fits(point)) {\n cluster.add(point);\n found = true;\n }\n }\n return found;\n }\n\n // iterate over each cloud\n for ( i = 0; i < points.length; i++) {\n point = Cluster2.createPoint(points[i], i, property);\n if (!addToCluster(point)) {\n clusters.push(Cluster2.create(point, threshold));\n }\n }\n\n return clusters;\n\n};\n\nCVUtils.Tracer = {\n trace : function(points, vec) {\n var iteration, maxIterations = 10, top = [], result = [], centerPos = 0, currentPos = 0;\n\n function trace(idx, forward) {\n var from, to, toIdx, predictedPos, thresholdX = 1, thresholdY = Math.abs(vec[1] / 10), found = false;\n\n function match(pos, predicted) {\n if (pos.x > (predicted.x - thresholdX) && pos.x < (predicted.x + thresholdX) && pos.y > (predicted.y - thresholdY) && pos.y < (predicted.y + thresholdY)) {\n return true;\n } else {\n return false;\n }\n }\n\n // check if the next index is within the vec specifications\n // if not, check as long as the threshold is met\n\n from = points[idx];\n if (forward) {\n predictedPos = {\n x : from.x + vec[0],\n y : from.y + vec[1]\n };\n } else {\n predictedPos = {\n x : from.x - vec[0],\n y : from.y - vec[1]\n };\n }\n\n toIdx = forward ? idx + 1 : idx - 1;\n to = points[toIdx];\n while (to && ( found = match(to, predictedPos)) !== true && (Math.abs(to.y - from.y) < vec[1])) {\n toIdx = forward ? toIdx + 1 : toIdx - 1;\n to = points[toIdx];\n }\n\n return found ? toIdx : null;\n }\n\n for ( iteration = 0; iteration < maxIterations; iteration++) {\n // randomly select point to start with\n centerPos = Math.floor(Math.random() * points.length);\n\n // trace forward\n top = [];\n currentPos = centerPos;\n top.push(points[currentPos]);\n while (( currentPos = trace(currentPos, true)) !== null) {\n top.push(points[currentPos]);\n }\n if (centerPos > 0) {\n currentPos = centerPos;\n while (( currentPos = trace(currentPos, false)) !== null) {\n top.push(points[currentPos]);\n }\n }\n\n if (top.length > result.length) {\n result = top;\n }\n }\n\n return result;\n\n }\n};\n\nCVUtils.DILATE = 1;\nCVUtils.ERODE = 2;\n\nCVUtils.dilate = function(inImageWrapper, outImageWrapper) {\n var v, u, inImageData = inImageWrapper.data, outImageData = outImageWrapper.data, height = inImageWrapper.size.y, width = inImageWrapper.size.x, sum, yStart1, yStart2, xStart1, xStart2;\n\n for ( v = 1; v < height - 1; v++) {\n for ( u = 1; u < width - 1; u++) {\n yStart1 = v - 1;\n yStart2 = v + 1;\n xStart1 = u - 1;\n xStart2 = u + 1;\n sum = inImageData[yStart1 * width + xStart1]/* + inImageData[yStart1*width+u] */ + inImageData[yStart1 * width + xStart2] +\n /* inImageData[v*width+xStart1] + */\n inImageData[v * width + u] + /* inImageData[v*width+xStart2] +*/\n inImageData[yStart2 * width + xStart1]/* + inImageData[yStart2*width+u]*/ + inImageData[yStart2 * width + xStart2];\n outImageData[v * width + u] = sum > 0 ? 1 : 0;\n }\n }\n};\n\nCVUtils.erode = function(inImageWrapper, outImageWrapper) {\n var v, u, inImageData = inImageWrapper.data, outImageData = outImageWrapper.data, height = inImageWrapper.size.y, width = inImageWrapper.size.x, sum, yStart1, yStart2, xStart1, xStart2;\n\n for ( v = 1; v < height - 1; v++) {\n for ( u = 1; u < width - 1; u++) {\n yStart1 = v - 1;\n yStart2 = v + 1;\n xStart1 = u - 1;\n xStart2 = u + 1;\n sum = inImageData[yStart1 * width + xStart1]/* + inImageData[yStart1*width+u] */ + inImageData[yStart1 * width + xStart2] +\n /* inImageData[v*width+xStart1] + */\n inImageData[v * width + u] + /* inImageData[v*width+xStart2] +*/\n inImageData[yStart2 * width + xStart1]/* + inImageData[yStart2*width+u]*/ + inImageData[yStart2 * width + xStart2];\n outImageData[v * width + u] = sum === 5 ? 1 : 0;\n }\n }\n};\n\nCVUtils.subtract = function(aImageWrapper, bImageWrapper, resultImageWrapper) {\n if (!resultImageWrapper) {\n resultImageWrapper = aImageWrapper;\n }\n var length = aImageWrapper.data.length, aImageData = aImageWrapper.data, bImageData = bImageWrapper.data, cImageData = resultImageWrapper.data;\n\n while (length--) {\n cImageData[length] = aImageData[length] - bImageData[length];\n }\n};\n\nCVUtils.bitwiseOr = function(aImageWrapper, bImageWrapper, resultImageWrapper) {\n if (!resultImageWrapper) {\n resultImageWrapper = aImageWrapper;\n }\n var length = aImageWrapper.data.length, aImageData = aImageWrapper.data, bImageData = bImageWrapper.data, cImageData = resultImageWrapper.data;\n\n while (length--) {\n cImageData[length] = aImageData[length] || bImageData[length];\n }\n};\n\nCVUtils.countNonZero = function(imageWrapper) {\n var length = imageWrapper.data.length, data = imageWrapper.data, sum = 0;\n\n while (length--) {\n sum += data[length];\n }\n return sum;\n};\n\nCVUtils.topGeneric = function(list, top, scoreFunc) {\n var i, minIdx = 0, min = 0, queue = [], score, hit, pos;\n\n for ( i = 0; i < top; i++) {\n queue[i] = {\n score : 0,\n item : null\n };\n }\n\n for ( i = 0; i < list.length; i++) {\n score = scoreFunc.apply(this, [list[i]]);\n if (score > min) {\n hit = queue[minIdx];\n hit.score = score;\n hit.item = list[i];\n min = Number.MAX_VALUE;\n for ( pos = 0; pos < top; pos++) {\n if (queue[pos].score < min) {\n min = queue[pos].score;\n minIdx = pos;\n }\n }\n }\n }\n\n return queue;\n};\n\nCVUtils.grayArrayFromImage = function(htmlImage, offsetX, ctx, array) {\n ctx.drawImage(htmlImage, offsetX, 0, htmlImage.width, htmlImage.height);\n var ctxData = ctx.getImageData(offsetX, 0, htmlImage.width, htmlImage.height).data;\n CVUtils.computeGray(ctxData, array);\n};\n\nCVUtils.grayArrayFromContext = function(ctx, size, offset, array) {\n var ctxData = ctx.getImageData(offset.x, offset.y, size.x, size.y).data;\n CVUtils.computeGray(ctxData, array);\n};\n\nCVUtils.grayAndHalfSampleFromCanvasData = function(canvasData, size, outArray) {\n var topRowIdx = 0;\n var bottomRowIdx = size.x;\n var endIdx = Math.floor(canvasData.length / 4);\n var outWidth = size.x / 2;\n var outImgIdx = 0;\n var inWidth = size.x;\n var i;\n\n while (bottomRowIdx < endIdx) {\n for ( i = 0; i < outWidth; i++) {\n outArray[outImgIdx] = Math.floor(((0.299 * canvasData[topRowIdx * 4 + 0] + 0.587 * canvasData[topRowIdx * 4 + 1] + 0.114 * canvasData[topRowIdx * 4 + 2]) + (0.299 * canvasData[(topRowIdx + 1) * 4 + 0] + 0.587 * canvasData[(topRowIdx + 1) * 4 + 1] + 0.114 * canvasData[(topRowIdx + 1) * 4 + 2]) + (0.299 * canvasData[(bottomRowIdx) * 4 + 0] + 0.587 * canvasData[(bottomRowIdx) * 4 + 1] + 0.114 * canvasData[(bottomRowIdx) * 4 + 2]) + (0.299 * canvasData[(bottomRowIdx + 1) * 4 + 0] + 0.587 * canvasData[(bottomRowIdx + 1) * 4 + 1] + 0.114 * canvasData[(bottomRowIdx + 1) * 4 + 2])) / 4);\n outImgIdx++;\n topRowIdx = topRowIdx + 2;\n bottomRowIdx = bottomRowIdx + 2;\n }\n topRowIdx = topRowIdx + inWidth;\n bottomRowIdx = bottomRowIdx + inWidth;\n }\n\n};\n\nCVUtils.computeGray = function(imageData, outArray, config) {\n var l = (imageData.length / 4) | 0,\n i,\n singleChannel = config && config.singleChannel === true;\n\n if (singleChannel) {\n for (i = 0; i < l; i++) {\n outArray[i] = imageData[i * 4 + 0];\n }\n } else {\n for (i = 0; i < l; i++) {\n outArray[i] = Math.floor(0.299 * imageData[i * 4 + 0] + 0.587 * imageData[i * 4 + 1] + 0.114 * imageData[i * 4 + 2]);\n }\n }\n};\n\nCVUtils.loadImageArray = function(src, callback, canvas) {\n if (!canvas)\n canvas = document.createElement('canvas');\n var img = new Image();\n img.callback = callback;\n img.onload = function() {\n canvas.width = this.width;\n canvas.height = this.height;\n var ctx = canvas.getContext('2d');\n ctx.drawImage(this, 0, 0);\n var array = new Uint8Array(this.width * this.height);\n ctx.drawImage(this, 0, 0);\n var data = ctx.getImageData(0, 0, this.width, this.height).data;\n CVUtils.computeGray(data, array);\n this.callback(array, {\n x : this.width,\n y : this.height\n }, this);\n };\n img.src = src;\n};\n\n/**\n * @param inImg {ImageWrapper} input image to be sampled\n * @param outImg {ImageWrapper} to be stored in\n */\nCVUtils.halfSample = function(inImgWrapper, outImgWrapper) {\n var inImg = inImgWrapper.data;\n var inWidth = inImgWrapper.size.x;\n var outImg = outImgWrapper.data;\n var topRowIdx = 0;\n var bottomRowIdx = inWidth;\n var endIdx = inImg.length;\n var outWidth = inWidth / 2;\n var outImgIdx = 0;\n while (bottomRowIdx < endIdx) {\n for (var i = 0; i < outWidth; i++) {\n outImg[outImgIdx] = Math.floor((inImg[topRowIdx] + inImg[topRowIdx + 1] + inImg[bottomRowIdx] + inImg[bottomRowIdx + 1]) / 4);\n outImgIdx++;\n topRowIdx = topRowIdx + 2;\n bottomRowIdx = bottomRowIdx + 2;\n }\n topRowIdx = topRowIdx + inWidth;\n bottomRowIdx = bottomRowIdx + inWidth;\n }\n};\n\nCVUtils.hsv2rgb = function(hsv, rgb) {\n var h = hsv[0], s = hsv[1], v = hsv[2], c = v * s, x = c * (1 - Math.abs((h / 60) % 2 - 1)), m = v - c, r = 0, g = 0, b = 0;\n rgb = rgb || [0, 0, 0];\n\n if (h < 60) {\n r = c;\n g = x;\n } else if (h < 120) {\n r = x;\n g = c;\n } else if (h < 180) {\n g = c;\n b = x;\n } else if (h < 240) {\n g = x;\n b = c;\n } else if (h < 300) {\n r = x;\n b = c;\n } else if (h < 360) {\n r = c;\n b = x;\n }\n rgb[0] = ((r + m) * 255) | 0;\n rgb[1] = ((g + m) * 255) | 0;\n rgb[2] = ((b + m) * 255) | 0;\n return rgb;\n};\n\nCVUtils._computeDivisors = function(n) {\n var largeDivisors = [],\n divisors = [],\n i;\n\n for (i = 1; i < Math.sqrt(n) + 1; i++) {\n if (n % i === 0) {\n divisors.push(i);\n if (i !== n/i) {\n largeDivisors.unshift(Math.floor(n/i));\n }\n }\n }\n return divisors.concat(largeDivisors);\n};\n\nCVUtils._computeIntersection = function(arr1, arr2) {\n var i = 0,\n j = 0,\n result = [];\n\n while (i < arr1.length && j < arr2.length) {\n if (arr1[i] === arr2[j]) {\n result.push(arr1[i]);\n i++;\n j++;\n } else if (arr1[i] > arr2[j]) {\n j++;\n } else {\n i++;\n }\n }\n return result;\n};\n\nCVUtils.calculatePatchSize = function(patchSize, imgSize) {\n var divisorsX = this._computeDivisors(imgSize.x),\n divisorsY = this._computeDivisors(imgSize.y),\n wideSide = Math.max(imgSize.x, imgSize.y),\n common = this._computeIntersection(divisorsX, divisorsY),\n nrOfPatchesList = [8, 10, 15, 20, 32, 60, 80],\n nrOfPatchesMap = {\n \"x-small\": 5,\n \"small\": 4,\n \"medium\": 3,\n \"large\": 2,\n \"x-large\": 1\n },\n nrOfPatchesIdx = nrOfPatchesMap[patchSize] || nrOfPatchesMap.medium,\n nrOfPatches = nrOfPatchesList[nrOfPatchesIdx],\n desiredPatchSize = Math.floor(wideSide/nrOfPatches),\n optimalPatchSize;\n\n function findPatchSizeForDivisors(divisors) {\n var i = 0,\n found = divisors[Math.floor(divisors.length/2)];\n\n while(i < (divisors.length - 1) && divisors[i] < desiredPatchSize) {\n i++;\n }\n if (i > 0) {\n if (Math.abs(divisors[i] - desiredPatchSize) > Math.abs(divisors[i-1] - desiredPatchSize)) {\n found = divisors[i-1];\n } else {\n found = divisors[i];\n }\n }\n if (desiredPatchSize / found < nrOfPatchesList[nrOfPatchesIdx+1] / nrOfPatchesList[nrOfPatchesIdx] &&\n desiredPatchSize / found > nrOfPatchesList[nrOfPatchesIdx-1]/nrOfPatchesList[nrOfPatchesIdx] ) {\n return {x: found, y: found};\n }\n return null;\n }\n\n optimalPatchSize = findPatchSizeForDivisors(common);\n if (!optimalPatchSize) {\n optimalPatchSize = findPatchSizeForDivisors(this._computeDivisors(wideSide));\n if (!optimalPatchSize) {\n optimalPatchSize = findPatchSizeForDivisors((this._computeDivisors(desiredPatchSize * nrOfPatches)));\n }\n }\n return optimalPatchSize;\n};\n\nCVUtils._parseCSSDimensionValues = function(value) {\n var dimension = {\n value: parseFloat(value),\n unit: value.indexOf(\"%\") === value.length-1 ? \"%\" : \"%\"\n };\n\n return dimension;\n};\n\nCVUtils._dimensionsConverters = {\n top: function(dimension, context) {\n if (dimension.unit === \"%\") {\n return Math.floor(context.height * (dimension.value / 100));\n }\n },\n right: function(dimension, context) {\n if (dimension.unit === \"%\") {\n return Math.floor(context.width - (context.width * (dimension.value / 100)));\n }\n },\n bottom: function(dimension, context) {\n if (dimension.unit === \"%\") {\n return Math.floor(context.height - (context.height * (dimension.value / 100)));\n }\n },\n left: function(dimension, context) {\n if (dimension.unit === \"%\") {\n return Math.floor(context.width * (dimension.value / 100));\n }\n }\n};\n\nCVUtils.computeImageArea = function(inputWidth, inputHeight, area) {\n var context = {width: inputWidth, height: inputHeight};\n\n var parsedArea = Object.keys(area).reduce(function(result, key) {\n var value = area[key],\n parsed = CVUtils._parseCSSDimensionValues(value),\n calculated = CVUtils._dimensionsConverters[key](parsed, context);\n\n result[key] = calculated;\n return result;\n }, {});\n\n return {\n sx: parsedArea.left,\n sy: parsedArea.top,\n sw: parsedArea.right - parsedArea.left,\n sh: parsedArea.bottom - parsedArea.top\n };\n};\n\nexport default CVUtils;\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/cv_utils.js\n **/","import {vec2} from 'gl-matrix';\n /**\n * Creates a cluster for grouping similar orientations of datapoints\n */\nexport default {\n create : function(point, threshold) {\n var points = [], center = {\n rad : 0,\n vec : vec2.clone([0, 0])\n }, pointMap = {};\n\n function init() {\n add(point);\n updateCenter();\n }\n\n function add(point) {\n pointMap[point.id] = point;\n points.push(point);\n }\n\n function updateCenter() {\n var i, sum = 0;\n for ( i = 0; i < points.length; i++) {\n sum += points[i].rad;\n }\n center.rad = sum / points.length;\n center.vec = vec2.clone([Math.cos(center.rad), Math.sin(center.rad)]);\n }\n\n init();\n\n return {\n add : function(point) {\n if (!pointMap[point.id]) {\n add(point);\n updateCenter();\n }\n },\n fits : function(point) {\n // check cosine similarity to center-angle\n var similarity = Math.abs(vec2.dot(point.point.vec, center.vec));\n if (similarity > threshold) {\n return true;\n }\n return false;\n },\n getPoints : function() {\n return points;\n },\n getCenter : function() {\n return center;\n }\n };\n },\n createPoint : function(point, id, property) {\n return {\n rad : point[property],\n point : point,\n id : id\n };\n }\n};\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/cluster.js\n **/","/**\n * @fileoverview gl-matrix - High performance matrix and vector operations\n * @author Brandon Jones\n * @author Colin MacKenzie IV\n * @version 2.3.0\n */\n\n/* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV.\n\nPermission is hereby granted, free of charge, to any person obtaining a copy\nof this software and associated documentation files (the \"Software\"), to deal\nin the Software without restriction, including without limitation the rights\nto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\ncopies of the Software, and to permit persons to whom the Software is\nfurnished to do so, subject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in\nall copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\nFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\nAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\nLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\nOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\nTHE SOFTWARE. */\n// END HEADER\n\nexports.glMatrix = require(\"./gl-matrix/common.js\");\nexports.mat2 = require(\"./gl-matrix/mat2.js\");\nexports.mat2d = require(\"./gl-matrix/mat2d.js\");\nexports.mat3 = require(\"./gl-matrix/mat3.js\");\nexports.mat4 = require(\"./gl-matrix/mat4.js\");\nexports.quat = require(\"./gl-matrix/quat.js\");\nexports.vec2 = require(\"./gl-matrix/vec2.js\");\nexports.vec3 = require(\"./gl-matrix/vec3.js\");\nexports.vec4 = require(\"./gl-matrix/vec4.js\");\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/gl-matrix/src/gl-matrix.js\n ** module id = 9\n ** module chunks = 0\n **/","/* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV.\n\nPermission is hereby granted, free of charge, to any person obtaining a copy\nof this software and associated documentation files (the \"Software\"), to deal\nin the Software without restriction, including without limitation the rights\nto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\ncopies of the Software, and to permit persons to whom the Software is\nfurnished to do so, subject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in\nall copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\nFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\nAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\nLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\nOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\nTHE SOFTWARE. */\n\n/**\n * @class Common utilities\n * @name glMatrix\n */\nvar glMatrix = {};\n\n// Constants\nglMatrix.EPSILON = 0.000001;\nglMatrix.ARRAY_TYPE = (typeof Float32Array !== 'undefined') ? Float32Array : Array;\nglMatrix.RANDOM = Math.random;\n\n/**\n * Sets the type of array used when creating new vectors and matrices\n *\n * @param {Type} type Array type, such as Float32Array or Array\n */\nglMatrix.setMatrixArrayType = function(type) {\n GLMAT_ARRAY_TYPE = type;\n}\n\nvar degree = Math.PI / 180;\n\n/**\n* Convert Degree To Radian\n*\n* @param {Number} Angle in Degrees\n*/\nglMatrix.toRadian = function(a){\n return a * degree;\n}\n\nmodule.exports = glMatrix;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/gl-matrix/src/gl-matrix/common.js\n ** module id = 10\n ** module chunks = 0\n **/","/* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV.\n\nPermission is hereby granted, free of charge, to any person obtaining a copy\nof this software and associated documentation files (the \"Software\"), to deal\nin the Software without restriction, including without limitation the rights\nto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\ncopies of the Software, and to permit persons to whom the Software is\nfurnished to do so, subject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in\nall copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\nFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\nAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\nLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\nOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\nTHE SOFTWARE. */\n\nvar glMatrix = require(\"./common.js\");\n\n/**\n * @class 2x2 Matrix\n * @name mat2\n */\nvar mat2 = {};\n\n/**\n * Creates a new identity mat2\n *\n * @returns {mat2} a new 2x2 matrix\n */\nmat2.create = function() {\n var out = new glMatrix.ARRAY_TYPE(4);\n out[0] = 1;\n out[1] = 0;\n out[2] = 0;\n out[3] = 1;\n return out;\n};\n\n/**\n * Creates a new mat2 initialized with values from an existing matrix\n *\n * @param {mat2} a matrix to clone\n * @returns {mat2} a new 2x2 matrix\n */\nmat2.clone = function(a) {\n var out = new glMatrix.ARRAY_TYPE(4);\n out[0] = a[0];\n out[1] = a[1];\n out[2] = a[2];\n out[3] = a[3];\n return out;\n};\n\n/**\n * Copy the values from one mat2 to another\n *\n * @param {mat2} out the receiving matrix\n * @param {mat2} a the source matrix\n * @returns {mat2} out\n */\nmat2.copy = function(out, a) {\n out[0] = a[0];\n out[1] = a[1];\n out[2] = a[2];\n out[3] = a[3];\n return out;\n};\n\n/**\n * Set a mat2 to the identity matrix\n *\n * @param {mat2} out the receiving matrix\n * @returns {mat2} out\n */\nmat2.identity = function(out) {\n out[0] = 1;\n out[1] = 0;\n out[2] = 0;\n out[3] = 1;\n return out;\n};\n\n/**\n * Transpose the values of a mat2\n *\n * @param {mat2} out the receiving matrix\n * @param {mat2} a the source matrix\n * @returns {mat2} out\n */\nmat2.transpose = function(out, a) {\n // If we are transposing ourselves we can skip a few steps but have to cache some values\n if (out === a) {\n var a1 = a[1];\n out[1] = a[2];\n out[2] = a1;\n } else {\n out[0] = a[0];\n out[1] = a[2];\n out[2] = a[1];\n out[3] = a[3];\n }\n \n return out;\n};\n\n/**\n * Inverts a mat2\n *\n * @param {mat2} out the receiving matrix\n * @param {mat2} a the source matrix\n * @returns {mat2} out\n */\nmat2.invert = function(out, a) {\n var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3],\n\n // Calculate the determinant\n det = a0 * a3 - a2 * a1;\n\n if (!det) {\n return null;\n }\n det = 1.0 / det;\n \n out[0] = a3 * det;\n out[1] = -a1 * det;\n out[2] = -a2 * det;\n out[3] = a0 * det;\n\n return out;\n};\n\n/**\n * Calculates the adjugate of a mat2\n *\n * @param {mat2} out the receiving matrix\n * @param {mat2} a the source matrix\n * @returns {mat2} out\n */\nmat2.adjoint = function(out, a) {\n // Caching this value is nessecary if out == a\n var a0 = a[0];\n out[0] = a[3];\n out[1] = -a[1];\n out[2] = -a[2];\n out[3] = a0;\n\n return out;\n};\n\n/**\n * Calculates the determinant of a mat2\n *\n * @param {mat2} a the source matrix\n * @returns {Number} determinant of a\n */\nmat2.determinant = function (a) {\n return a[0] * a[3] - a[2] * a[1];\n};\n\n/**\n * Multiplies two mat2's\n *\n * @param {mat2} out the receiving matrix\n * @param {mat2} a the first operand\n * @param {mat2} b the second operand\n * @returns {mat2} out\n */\nmat2.multiply = function (out, a, b) {\n var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3];\n var b0 = b[0], b1 = b[1], b2 = b[2], b3 = b[3];\n out[0] = a0 * b0 + a2 * b1;\n out[1] = a1 * b0 + a3 * b1;\n out[2] = a0 * b2 + a2 * b3;\n out[3] = a1 * b2 + a3 * b3;\n return out;\n};\n\n/**\n * Alias for {@link mat2.multiply}\n * @function\n */\nmat2.mul = mat2.multiply;\n\n/**\n * Rotates a mat2 by the given angle\n *\n * @param {mat2} out the receiving matrix\n * @param {mat2} a the matrix to rotate\n * @param {Number} rad the angle to rotate the matrix by\n * @returns {mat2} out\n */\nmat2.rotate = function (out, a, rad) {\n var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3],\n s = Math.sin(rad),\n c = Math.cos(rad);\n out[0] = a0 * c + a2 * s;\n out[1] = a1 * c + a3 * s;\n out[2] = a0 * -s + a2 * c;\n out[3] = a1 * -s + a3 * c;\n return out;\n};\n\n/**\n * Scales the mat2 by the dimensions in the given vec2\n *\n * @param {mat2} out the receiving matrix\n * @param {mat2} a the matrix to rotate\n * @param {vec2} v the vec2 to scale the matrix by\n * @returns {mat2} out\n **/\nmat2.scale = function(out, a, v) {\n var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3],\n v0 = v[0], v1 = v[1];\n out[0] = a0 * v0;\n out[1] = a1 * v0;\n out[2] = a2 * v1;\n out[3] = a3 * v1;\n return out;\n};\n\n/**\n * Creates a matrix from a given angle\n * This is equivalent to (but much faster than):\n *\n * mat2.identity(dest);\n * mat2.rotate(dest, dest, rad);\n *\n * @param {mat2} out mat2 receiving operation result\n * @param {Number} rad the angle to rotate the matrix by\n * @returns {mat2} out\n */\nmat2.fromRotation = function(out, rad) {\n var s = Math.sin(rad),\n c = Math.cos(rad);\n out[0] = c;\n out[1] = s;\n out[2] = -s;\n out[3] = c;\n return out;\n}\n\n/**\n * Creates a matrix from a vector scaling\n * This is equivalent to (but much faster than):\n *\n * mat2.identity(dest);\n * mat2.scale(dest, dest, vec);\n *\n * @param {mat2} out mat2 receiving operation result\n * @param {vec2} v Scaling vector\n * @returns {mat2} out\n */\nmat2.fromScaling = function(out, v) {\n out[0] = v[0];\n out[1] = 0;\n out[2] = 0;\n out[3] = v[1];\n return out;\n}\n\n/**\n * Returns a string representation of a mat2\n *\n * @param {mat2} mat matrix to represent as a string\n * @returns {String} string representation of the matrix\n */\nmat2.str = function (a) {\n return 'mat2(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' + a[3] + ')';\n};\n\n/**\n * Returns Frobenius norm of a mat2\n *\n * @param {mat2} a the matrix to calculate Frobenius norm of\n * @returns {Number} Frobenius norm\n */\nmat2.frob = function (a) {\n return(Math.sqrt(Math.pow(a[0], 2) + Math.pow(a[1], 2) + Math.pow(a[2], 2) + Math.pow(a[3], 2)))\n};\n\n/**\n * Returns L, D and U matrices (Lower triangular, Diagonal and Upper triangular) by factorizing the input matrix\n * @param {mat2} L the lower triangular matrix \n * @param {mat2} D the diagonal matrix \n * @param {mat2} U the upper triangular matrix \n * @param {mat2} a the input matrix to factorize\n */\n\nmat2.LDU = function (L, D, U, a) { \n L[2] = a[2]/a[0]; \n U[0] = a[0]; \n U[1] = a[1]; \n U[3] = a[3] - L[2] * U[1]; \n return [L, D, U]; \n}; \n\n\nmodule.exports = mat2;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/gl-matrix/src/gl-matrix/mat2.js\n ** module id = 11\n ** module chunks = 0\n **/","/* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV.\n\nPermission is hereby granted, free of charge, to any person obtaining a copy\nof this software and associated documentation files (the \"Software\"), to deal\nin the Software without restriction, including without limitation the rights\nto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\ncopies of the Software, and to permit persons to whom the Software is\nfurnished to do so, subject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in\nall copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\nFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\nAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\nLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\nOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\nTHE SOFTWARE. */\n\nvar glMatrix = require(\"./common.js\");\n\n/**\n * @class 2x3 Matrix\n * @name mat2d\n * \n * @description \n * A mat2d contains six elements defined as:\n * 
\n * [a, c, tx,\n *  b, d, ty]\n *
\n * This is a short form for the 3x3 matrix:\n * 
\n * [a, c, tx,\n *  b, d, ty,\n *  0, 0, 1]\n *
\n * The last row is ignored so the array is shorter and operations are faster.\n */\nvar mat2d = {};\n\n/**\n * Creates a new identity mat2d\n *\n * @returns {mat2d} a new 2x3 matrix\n */\nmat2d.create = function() {\n var out = new glMatrix.ARRAY_TYPE(6);\n out[0] = 1;\n out[1] = 0;\n out[2] = 0;\n out[3] = 1;\n out[4] = 0;\n out[5] = 0;\n return out;\n};\n\n/**\n * Creates a new mat2d initialized with values from an existing matrix\n *\n * @param {mat2d} a matrix to clone\n * @returns {mat2d} a new 2x3 matrix\n */\nmat2d.clone = function(a) {\n var out = new glMatrix.ARRAY_TYPE(6);\n out[0] = a[0];\n out[1] = a[1];\n out[2] = a[2];\n out[3] = a[3];\n out[4] = a[4];\n out[5] = a[5];\n return out;\n};\n\n/**\n * Copy the values from one mat2d to another\n *\n * @param {mat2d} out the receiving matrix\n * @param {mat2d} a the source matrix\n * @returns {mat2d} out\n */\nmat2d.copy = function(out, a) {\n out[0] = a[0];\n out[1] = a[1];\n out[2] = a[2];\n out[3] = a[3];\n out[4] = a[4];\n out[5] = a[5];\n return out;\n};\n\n/**\n * Set a mat2d to the identity matrix\n *\n * @param {mat2d} out the receiving matrix\n * @returns {mat2d} out\n */\nmat2d.identity = function(out) {\n out[0] = 1;\n out[1] = 0;\n out[2] = 0;\n out[3] = 1;\n out[4] = 0;\n out[5] = 0;\n return out;\n};\n\n/**\n * Inverts a mat2d\n *\n * @param {mat2d} out the receiving matrix\n * @param {mat2d} a the source matrix\n * @returns {mat2d} out\n */\nmat2d.invert = function(out, a) {\n var aa = a[0], ab = a[1], ac = a[2], ad = a[3],\n atx = a[4], aty = a[5];\n\n var det = aa * ad - ab * ac;\n if(!det){\n return null;\n }\n det = 1.0 / det;\n\n out[0] = ad * det;\n out[1] = -ab * det;\n out[2] = -ac * det;\n out[3] = aa * det;\n out[4] = (ac * aty - ad * atx) * det;\n out[5] = (ab * atx - aa * aty) * det;\n return out;\n};\n\n/**\n * Calculates the determinant of a mat2d\n *\n * @param {mat2d} a the source matrix\n * @returns {Number} determinant of a\n */\nmat2d.determinant = function (a) {\n return a[0] * a[3] - a[1] * a[2];\n};\n\n/**\n * Multiplies two mat2d's\n *\n * @param {mat2d} out the receiving matrix\n * @param {mat2d} a the first operand\n * @param {mat2d} b the second operand\n * @returns {mat2d} out\n */\nmat2d.multiply = function (out, a, b) {\n var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3], a4 = a[4], a5 = a[5],\n b0 = b[0], b1 = b[1], b2 = b[2], b3 = b[3], b4 = b[4], b5 = b[5];\n out[0] = a0 * b0 + a2 * b1;\n out[1] = a1 * b0 + a3 * b1;\n out[2] = a0 * b2 + a2 * b3;\n out[3] = a1 * b2 + a3 * b3;\n out[4] = a0 * b4 + a2 * b5 + a4;\n out[5] = a1 * b4 + a3 * b5 + a5;\n return out;\n};\n\n/**\n * Alias for {@link mat2d.multiply}\n * @function\n */\nmat2d.mul = mat2d.multiply;\n\n/**\n * Rotates a mat2d by the given angle\n *\n * @param {mat2d} out the receiving matrix\n * @param {mat2d} a the matrix to rotate\n * @param {Number} rad the angle to rotate the matrix by\n * @returns {mat2d} out\n */\nmat2d.rotate = function (out, a, rad) {\n var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3], a4 = a[4], a5 = a[5],\n s = Math.sin(rad),\n c = Math.cos(rad);\n out[0] = a0 * c + a2 * s;\n out[1] = a1 * c + a3 * s;\n out[2] = a0 * -s + a2 * c;\n out[3] = a1 * -s + a3 * c;\n out[4] = a4;\n out[5] = a5;\n return out;\n};\n\n/**\n * Scales the mat2d by the dimensions in the given vec2\n *\n * @param {mat2d} out the receiving matrix\n * @param {mat2d} a the matrix to translate\n * @param {vec2} v the vec2 to scale the matrix by\n * @returns {mat2d} out\n **/\nmat2d.scale = function(out, a, v) {\n var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3], a4 = a[4], a5 = a[5],\n v0 = v[0], v1 = v[1];\n out[0] = a0 * v0;\n out[1] = a1 * v0;\n out[2] = a2 * v1;\n out[3] = a3 * v1;\n out[4] = a4;\n out[5] = a5;\n return out;\n};\n\n/**\n * Translates the mat2d by the dimensions in the given vec2\n *\n * @param {mat2d} out the receiving matrix\n * @param {mat2d} a the matrix to translate\n * @param {vec2} v the vec2 to translate the matrix by\n * @returns {mat2d} out\n **/\nmat2d.translate = function(out, a, v) {\n var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3], a4 = a[4], a5 = a[5],\n v0 = v[0], v1 = v[1];\n out[0] = a0;\n out[1] = a1;\n out[2] = a2;\n out[3] = a3;\n out[4] = a0 * v0 + a2 * v1 + a4;\n out[5] = a1 * v0 + a3 * v1 + a5;\n return out;\n};\n\n/**\n * Creates a matrix from a given angle\n * This is equivalent to (but much faster than):\n *\n * mat2d.identity(dest);\n * mat2d.rotate(dest, dest, rad);\n *\n * @param {mat2d} out mat2d receiving operation result\n * @param {Number} rad the angle to rotate the matrix by\n * @returns {mat2d} out\n */\nmat2d.fromRotation = function(out, rad) {\n var s = Math.sin(rad), c = Math.cos(rad);\n out[0] = c;\n out[1] = s;\n out[2] = -s;\n out[3] = c;\n out[4] = 0;\n out[5] = 0;\n return out;\n}\n\n/**\n * Creates a matrix from a vector scaling\n * This is equivalent to (but much faster than):\n *\n * mat2d.identity(dest);\n * mat2d.scale(dest, dest, vec);\n *\n * @param {mat2d} out mat2d receiving operation result\n * @param {vec2} v Scaling vector\n * @returns {mat2d} out\n */\nmat2d.fromScaling = function(out, v) {\n out[0] = v[0];\n out[1] = 0;\n out[2] = 0;\n out[3] = v[1];\n out[4] = 0;\n out[5] = 0;\n return out;\n}\n\n/**\n * Creates a matrix from a vector translation\n * This is equivalent to (but much faster than):\n *\n * mat2d.identity(dest);\n * mat2d.translate(dest, dest, vec);\n *\n * @param {mat2d} out mat2d receiving operation result\n * @param {vec2} v Translation vector\n * @returns {mat2d} out\n */\nmat2d.fromTranslation = function(out, v) {\n out[0] = 1;\n out[1] = 0;\n out[2] = 0;\n out[3] = 1;\n out[4] = v[0];\n out[5] = v[1];\n return out;\n}\n\n/**\n * Returns a string representation of a mat2d\n *\n * @param {mat2d} a matrix to represent as a string\n * @returns {String} string representation of the matrix\n */\nmat2d.str = function (a) {\n return 'mat2d(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' + \n a[3] + ', ' + a[4] + ', ' + a[5] + ')';\n};\n\n/**\n * Returns Frobenius norm of a mat2d\n *\n * @param {mat2d} a the matrix to calculate Frobenius norm of\n * @returns {Number} Frobenius norm\n */\nmat2d.frob = function (a) { \n return(Math.sqrt(Math.pow(a[0], 2) + Math.pow(a[1], 2) + Math.pow(a[2], 2) + Math.pow(a[3], 2) + Math.pow(a[4], 2) + Math.pow(a[5], 2) + 1))\n}; \n\nmodule.exports = mat2d;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/gl-matrix/src/gl-matrix/mat2d.js\n ** module id = 12\n ** module chunks = 0\n **/","/* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV.\n\nPermission is hereby granted, free of charge, to any person obtaining a copy\nof this software and associated documentation files (the \"Software\"), to deal\nin the Software without restriction, including without limitation the rights\nto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\ncopies of the Software, and to permit persons to whom the Software is\nfurnished to do so, subject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in\nall copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\nFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\nAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\nLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\nOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\nTHE SOFTWARE. */\n\nvar glMatrix = require(\"./common.js\");\n\n/**\n * @class 3x3 Matrix\n * @name mat3\n */\nvar mat3 = {};\n\n/**\n * Creates a new identity mat3\n *\n * @returns {mat3} a new 3x3 matrix\n */\nmat3.create = function() {\n var out = new glMatrix.ARRAY_TYPE(9);\n out[0] = 1;\n out[1] = 0;\n out[2] = 0;\n out[3] = 0;\n out[4] = 1;\n out[5] = 0;\n out[6] = 0;\n out[7] = 0;\n out[8] = 1;\n return out;\n};\n\n/**\n * Copies the upper-left 3x3 values into the given mat3.\n *\n * @param {mat3} out the receiving 3x3 matrix\n * @param {mat4} a the source 4x4 matrix\n * @returns {mat3} out\n */\nmat3.fromMat4 = function(out, a) {\n out[0] = a[0];\n out[1] = a[1];\n out[2] = a[2];\n out[3] = a[4];\n out[4] = a[5];\n out[5] = a[6];\n out[6] = a[8];\n out[7] = a[9];\n out[8] = a[10];\n return out;\n};\n\n/**\n * Creates a new mat3 initialized with values from an existing matrix\n *\n * @param {mat3} a matrix to clone\n * @returns {mat3} a new 3x3 matrix\n */\nmat3.clone = function(a) {\n var out = new glMatrix.ARRAY_TYPE(9);\n out[0] = a[0];\n out[1] = a[1];\n out[2] = a[2];\n out[3] = a[3];\n out[4] = a[4];\n out[5] = a[5];\n out[6] = a[6];\n out[7] = a[7];\n out[8] = a[8];\n return out;\n};\n\n/**\n * Copy the values from one mat3 to another\n *\n * @param {mat3} out the receiving matrix\n * @param {mat3} a the source matrix\n * @returns {mat3} out\n */\nmat3.copy = function(out, a) {\n out[0] = a[0];\n out[1] = a[1];\n out[2] = a[2];\n out[3] = a[3];\n out[4] = a[4];\n out[5] = a[5];\n out[6] = a[6];\n out[7] = a[7];\n out[8] = a[8];\n return out;\n};\n\n/**\n * Set a mat3 to the identity matrix\n *\n * @param {mat3} out the receiving matrix\n * @returns {mat3} out\n */\nmat3.identity = function(out) {\n out[0] = 1;\n out[1] = 0;\n out[2] = 0;\n out[3] = 0;\n out[4] = 1;\n out[5] = 0;\n out[6] = 0;\n out[7] = 0;\n out[8] = 1;\n return out;\n};\n\n/**\n * Transpose the values of a mat3\n *\n * @param {mat3} out the receiving matrix\n * @param {mat3} a the source matrix\n * @returns {mat3} out\n */\nmat3.transpose = function(out, a) {\n // If we are transposing ourselves we can skip a few steps but have to cache some values\n if (out === a) {\n var a01 = a[1], a02 = a[2], a12 = a[5];\n out[1] = a[3];\n out[2] = a[6];\n out[3] = a01;\n out[5] = a[7];\n out[6] = a02;\n out[7] = a12;\n } else {\n out[0] = a[0];\n out[1] = a[3];\n out[2] = a[6];\n out[3] = a[1];\n out[4] = a[4];\n out[5] = a[7];\n out[6] = a[2];\n out[7] = a[5];\n out[8] = a[8];\n }\n \n return out;\n};\n\n/**\n * Inverts a mat3\n *\n * @param {mat3} out the receiving matrix\n * @param {mat3} a the source matrix\n * @returns {mat3} out\n */\nmat3.invert = function(out, a) {\n var a00 = a[0], a01 = a[1], a02 = a[2],\n a10 = a[3], a11 = a[4], a12 = a[5],\n a20 = a[6], a21 = a[7], a22 = a[8],\n\n b01 = a22 * a11 - a12 * a21,\n b11 = -a22 * a10 + a12 * a20,\n b21 = a21 * a10 - a11 * a20,\n\n // Calculate the determinant\n det = a00 * b01 + a01 * b11 + a02 * b21;\n\n if (!det) { \n return null; \n }\n det = 1.0 / det;\n\n out[0] = b01 * det;\n out[1] = (-a22 * a01 + a02 * a21) * det;\n out[2] = (a12 * a01 - a02 * a11) * det;\n out[3] = b11 * det;\n out[4] = (a22 * a00 - a02 * a20) * det;\n out[5] = (-a12 * a00 + a02 * a10) * det;\n out[6] = b21 * det;\n out[7] = (-a21 * a00 + a01 * a20) * det;\n out[8] = (a11 * a00 - a01 * a10) * det;\n return out;\n};\n\n/**\n * Calculates the adjugate of a mat3\n *\n * @param {mat3} out the receiving matrix\n * @param {mat3} a the source matrix\n * @returns {mat3} out\n */\nmat3.adjoint = function(out, a) {\n var a00 = a[0], a01 = a[1], a02 = a[2],\n a10 = a[3], a11 = a[4], a12 = a[5],\n a20 = a[6], a21 = a[7], a22 = a[8];\n\n out[0] = (a11 * a22 - a12 * a21);\n out[1] = (a02 * a21 - a01 * a22);\n out[2] = (a01 * a12 - a02 * a11);\n out[3] = (a12 * a20 - a10 * a22);\n out[4] = (a00 * a22 - a02 * a20);\n out[5] = (a02 * a10 - a00 * a12);\n out[6] = (a10 * a21 - a11 * a20);\n out[7] = (a01 * a20 - a00 * a21);\n out[8] = (a00 * a11 - a01 * a10);\n return out;\n};\n\n/**\n * Calculates the determinant of a mat3\n *\n * @param {mat3} a the source matrix\n * @returns {Number} determinant of a\n */\nmat3.determinant = function (a) {\n var a00 = a[0], a01 = a[1], a02 = a[2],\n a10 = a[3], a11 = a[4], a12 = a[5],\n a20 = a[6], a21 = a[7], a22 = a[8];\n\n return a00 * (a22 * a11 - a12 * a21) + a01 * (-a22 * a10 + a12 * a20) + a02 * (a21 * a10 - a11 * a20);\n};\n\n/**\n * Multiplies two mat3's\n *\n * @param {mat3} out the receiving matrix\n * @param {mat3} a the first operand\n * @param {mat3} b the second operand\n * @returns {mat3} out\n */\nmat3.multiply = function (out, a, b) {\n var a00 = a[0], a01 = a[1], a02 = a[2],\n a10 = a[3], a11 = a[4], a12 = a[5],\n a20 = a[6], a21 = a[7], a22 = a[8],\n\n b00 = b[0], b01 = b[1], b02 = b[2],\n b10 = b[3], b11 = b[4], b12 = b[5],\n b20 = b[6], b21 = b[7], b22 = b[8];\n\n out[0] = b00 * a00 + b01 * a10 + b02 * a20;\n out[1] = b00 * a01 + b01 * a11 + b02 * a21;\n out[2] = b00 * a02 + b01 * a12 + b02 * a22;\n\n out[3] = b10 * a00 + b11 * a10 + b12 * a20;\n out[4] = b10 * a01 + b11 * a11 + b12 * a21;\n out[5] = b10 * a02 + b11 * a12 + b12 * a22;\n\n out[6] = b20 * a00 + b21 * a10 + b22 * a20;\n out[7] = b20 * a01 + b21 * a11 + b22 * a21;\n out[8] = b20 * a02 + b21 * a12 + b22 * a22;\n return out;\n};\n\n/**\n * Alias for {@link mat3.multiply}\n * @function\n */\nmat3.mul = mat3.multiply;\n\n/**\n * Translate a mat3 by the given vector\n *\n * @param {mat3} out the receiving matrix\n * @param {mat3} a the matrix to translate\n * @param {vec2} v vector to translate by\n * @returns {mat3} out\n */\nmat3.translate = function(out, a, v) {\n var a00 = a[0], a01 = a[1], a02 = a[2],\n a10 = a[3], a11 = a[4], a12 = a[5],\n a20 = a[6], a21 = a[7], a22 = a[8],\n x = v[0], y = v[1];\n\n out[0] = a00;\n out[1] = a01;\n out[2] = a02;\n\n out[3] = a10;\n out[4] = a11;\n out[5] = a12;\n\n out[6] = x * a00 + y * a10 + a20;\n out[7] = x * a01 + y * a11 + a21;\n out[8] = x * a02 + y * a12 + a22;\n return out;\n};\n\n/**\n * Rotates a mat3 by the given angle\n *\n * @param {mat3} out the receiving matrix\n * @param {mat3} a the matrix to rotate\n * @param {Number} rad the angle to rotate the matrix by\n * @returns {mat3} out\n */\nmat3.rotate = function (out, a, rad) {\n var a00 = a[0], a01 = a[1], a02 = a[2],\n a10 = a[3], a11 = a[4], a12 = a[5],\n a20 = a[6], a21 = a[7], a22 = a[8],\n\n s = Math.sin(rad),\n c = Math.cos(rad);\n\n out[0] = c * a00 + s * a10;\n out[1] = c * a01 + s * a11;\n out[2] = c * a02 + s * a12;\n\n out[3] = c * a10 - s * a00;\n out[4] = c * a11 - s * a01;\n out[5] = c * a12 - s * a02;\n\n out[6] = a20;\n out[7] = a21;\n out[8] = a22;\n return out;\n};\n\n/**\n * Scales the mat3 by the dimensions in the given vec2\n *\n * @param {mat3} out the receiving matrix\n * @param {mat3} a the matrix to rotate\n * @param {vec2} v the vec2 to scale the matrix by\n * @returns {mat3} out\n **/\nmat3.scale = function(out, a, v) {\n var x = v[0], y = v[1];\n\n out[0] = x * a[0];\n out[1] = x * a[1];\n out[2] = x * a[2];\n\n out[3] = y * a[3];\n out[4] = y * a[4];\n out[5] = y * a[5];\n\n out[6] = a[6];\n out[7] = a[7];\n out[8] = a[8];\n return out;\n};\n\n/**\n * Creates a matrix from a vector translation\n * This is equivalent to (but much faster than):\n *\n * mat3.identity(dest);\n * mat3.translate(dest, dest, vec);\n *\n * @param {mat3} out mat3 receiving operation result\n * @param {vec2} v Translation vector\n * @returns {mat3} out\n */\nmat3.fromTranslation = function(out, v) {\n out[0] = 1;\n out[1] = 0;\n out[2] = 0;\n out[3] = 0;\n out[4] = 1;\n out[5] = 0;\n out[6] = v[0];\n out[7] = v[1];\n out[8] = 1;\n return out;\n}\n\n/**\n * Creates a matrix from a given angle\n * This is equivalent to (but much faster than):\n *\n * mat3.identity(dest);\n * mat3.rotate(dest, dest, rad);\n *\n * @param {mat3} out mat3 receiving operation result\n * @param {Number} rad the angle to rotate the matrix by\n * @returns {mat3} out\n */\nmat3.fromRotation = function(out, rad) {\n var s = Math.sin(rad), c = Math.cos(rad);\n\n out[0] = c;\n out[1] = s;\n out[2] = 0;\n\n out[3] = -s;\n out[4] = c;\n out[5] = 0;\n\n out[6] = 0;\n out[7] = 0;\n out[8] = 1;\n return out;\n}\n\n/**\n * Creates a matrix from a vector scaling\n * This is equivalent to (but much faster than):\n *\n * mat3.identity(dest);\n * mat3.scale(dest, dest, vec);\n *\n * @param {mat3} out mat3 receiving operation result\n * @param {vec2} v Scaling vector\n * @returns {mat3} out\n */\nmat3.fromScaling = function(out, v) {\n out[0] = v[0];\n out[1] = 0;\n out[2] = 0;\n\n out[3] = 0;\n out[4] = v[1];\n out[5] = 0;\n\n out[6] = 0;\n out[7] = 0;\n out[8] = 1;\n return out;\n}\n\n/**\n * Copies the values from a mat2d into a mat3\n *\n * @param {mat3} out the receiving matrix\n * @param {mat2d} a the matrix to copy\n * @returns {mat3} out\n **/\nmat3.fromMat2d = function(out, a) {\n out[0] = a[0];\n out[1] = a[1];\n out[2] = 0;\n\n out[3] = a[2];\n out[4] = a[3];\n out[5] = 0;\n\n out[6] = a[4];\n out[7] = a[5];\n out[8] = 1;\n return out;\n};\n\n/**\n* Calculates a 3x3 matrix from the given quaternion\n*\n* @param {mat3} out mat3 receiving operation result\n* @param {quat} q Quaternion to create matrix from\n*\n* @returns {mat3} out\n*/\nmat3.fromQuat = function (out, q) {\n var x = q[0], y = q[1], z = q[2], w = q[3],\n x2 = x + x,\n y2 = y + y,\n z2 = z + z,\n\n xx = x * x2,\n yx = y * x2,\n yy = y * y2,\n zx = z * x2,\n zy = z * y2,\n zz = z * z2,\n wx = w * x2,\n wy = w * y2,\n wz = w * z2;\n\n out[0] = 1 - yy - zz;\n out[3] = yx - wz;\n out[6] = zx + wy;\n\n out[1] = yx + wz;\n out[4] = 1 - xx - zz;\n out[7] = zy - wx;\n\n out[2] = zx - wy;\n out[5] = zy + wx;\n out[8] = 1 - xx - yy;\n\n return out;\n};\n\n/**\n* Calculates a 3x3 normal matrix (transpose inverse) from the 4x4 matrix\n*\n* @param {mat3} out mat3 receiving operation result\n* @param {mat4} a Mat4 to derive the normal matrix from\n*\n* @returns {mat3} out\n*/\nmat3.normalFromMat4 = function (out, a) {\n var a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3],\n a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7],\n a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11],\n a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15],\n\n b00 = a00 * a11 - a01 * a10,\n b01 = a00 * a12 - a02 * a10,\n b02 = a00 * a13 - a03 * a10,\n b03 = a01 * a12 - a02 * a11,\n b04 = a01 * a13 - a03 * a11,\n b05 = a02 * a13 - a03 * a12,\n b06 = a20 * a31 - a21 * a30,\n b07 = a20 * a32 - a22 * a30,\n b08 = a20 * a33 - a23 * a30,\n b09 = a21 * a32 - a22 * a31,\n b10 = a21 * a33 - a23 * a31,\n b11 = a22 * a33 - a23 * a32,\n\n // Calculate the determinant\n det = b00 * b11 - b01 * b10 + b02 * b09 + b03 * b08 - b04 * b07 + b05 * b06;\n\n if (!det) { \n return null; \n }\n det = 1.0 / det;\n\n out[0] = (a11 * b11 - a12 * b10 + a13 * b09) * det;\n out[1] = (a12 * b08 - a10 * b11 - a13 * b07) * det;\n out[2] = (a10 * b10 - a11 * b08 + a13 * b06) * det;\n\n out[3] = (a02 * b10 - a01 * b11 - a03 * b09) * det;\n out[4] = (a00 * b11 - a02 * b08 + a03 * b07) * det;\n out[5] = (a01 * b08 - a00 * b10 - a03 * b06) * det;\n\n out[6] = (a31 * b05 - a32 * b04 + a33 * b03) * det;\n out[7] = (a32 * b02 - a30 * b05 - a33 * b01) * det;\n out[8] = (a30 * b04 - a31 * b02 + a33 * b00) * det;\n\n return out;\n};\n\n/**\n * Returns a string representation of a mat3\n *\n * @param {mat3} mat matrix to represent as a string\n * @returns {String} string representation of the matrix\n */\nmat3.str = function (a) {\n return 'mat3(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' + \n a[3] + ', ' + a[4] + ', ' + a[5] + ', ' + \n a[6] + ', ' + a[7] + ', ' + a[8] + ')';\n};\n\n/**\n * Returns Frobenius norm of a mat3\n *\n * @param {mat3} a the matrix to calculate Frobenius norm of\n * @returns {Number} Frobenius norm\n */\nmat3.frob = function (a) {\n return(Math.sqrt(Math.pow(a[0], 2) + Math.pow(a[1], 2) + Math.pow(a[2], 2) + Math.pow(a[3], 2) + Math.pow(a[4], 2) + Math.pow(a[5], 2) + Math.pow(a[6], 2) + Math.pow(a[7], 2) + Math.pow(a[8], 2)))\n};\n\n\nmodule.exports = mat3;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/gl-matrix/src/gl-matrix/mat3.js\n ** module id = 13\n ** module chunks = 0\n **/","/* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV.\n\nPermission is hereby granted, free of charge, to any person obtaining a copy\nof this software and associated documentation files (the \"Software\"), to deal\nin the Software without restriction, including without limitation the rights\nto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\ncopies of the Software, and to permit persons to whom the Software is\nfurnished to do so, subject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in\nall copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\nFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\nAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\nLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\nOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\nTHE SOFTWARE. */\n\nvar glMatrix = require(\"./common.js\");\n\n/**\n * @class 4x4 Matrix\n * @name mat4\n */\nvar mat4 = {};\n\n/**\n * Creates a new identity mat4\n *\n * @returns {mat4} a new 4x4 matrix\n */\nmat4.create = function() {\n var out = new glMatrix.ARRAY_TYPE(16);\n out[0] = 1;\n out[1] = 0;\n out[2] = 0;\n out[3] = 0;\n out[4] = 0;\n out[5] = 1;\n out[6] = 0;\n out[7] = 0;\n out[8] = 0;\n out[9] = 0;\n out[10] = 1;\n out[11] = 0;\n out[12] = 0;\n out[13] = 0;\n out[14] = 0;\n out[15] = 1;\n return out;\n};\n\n/**\n * Creates a new mat4 initialized with values from an existing matrix\n *\n * @param {mat4} a matrix to clone\n * @returns {mat4} a new 4x4 matrix\n */\nmat4.clone = function(a) {\n var out = new glMatrix.ARRAY_TYPE(16);\n out[0] = a[0];\n out[1] = a[1];\n out[2] = a[2];\n out[3] = a[3];\n out[4] = a[4];\n out[5] = a[5];\n out[6] = a[6];\n out[7] = a[7];\n out[8] = a[8];\n out[9] = a[9];\n out[10] = a[10];\n out[11] = a[11];\n out[12] = a[12];\n out[13] = a[13];\n out[14] = a[14];\n out[15] = a[15];\n return out;\n};\n\n/**\n * Copy the values from one mat4 to another\n *\n * @param {mat4} out the receiving matrix\n * @param {mat4} a the source matrix\n * @returns {mat4} out\n */\nmat4.copy = function(out, a) {\n out[0] = a[0];\n out[1] = a[1];\n out[2] = a[2];\n out[3] = a[3];\n out[4] = a[4];\n out[5] = a[5];\n out[6] = a[6];\n out[7] = a[7];\n out[8] = a[8];\n out[9] = a[9];\n out[10] = a[10];\n out[11] = a[11];\n out[12] = a[12];\n out[13] = a[13];\n out[14] = a[14];\n out[15] = a[15];\n return out;\n};\n\n/**\n * Set a mat4 to the identity matrix\n *\n * @param {mat4} out the receiving matrix\n * @returns {mat4} out\n */\nmat4.identity = function(out) {\n out[0] = 1;\n out[1] = 0;\n out[2] = 0;\n out[3] = 0;\n out[4] = 0;\n out[5] = 1;\n out[6] = 0;\n out[7] = 0;\n out[8] = 0;\n out[9] = 0;\n out[10] = 1;\n out[11] = 0;\n out[12] = 0;\n out[13] = 0;\n out[14] = 0;\n out[15] = 1;\n return out;\n};\n\n/**\n * Transpose the values of a mat4\n *\n * @param {mat4} out the receiving matrix\n * @param {mat4} a the source matrix\n * @returns {mat4} out\n */\nmat4.transpose = function(out, a) {\n // If we are transposing ourselves we can skip a few steps but have to cache some values\n if (out === a) {\n var a01 = a[1], a02 = a[2], a03 = a[3],\n a12 = a[6], a13 = a[7],\n a23 = a[11];\n\n out[1] = a[4];\n out[2] = a[8];\n out[3] = a[12];\n out[4] = a01;\n out[6] = a[9];\n out[7] = a[13];\n out[8] = a02;\n out[9] = a12;\n out[11] = a[14];\n out[12] = a03;\n out[13] = a13;\n out[14] = a23;\n } else {\n out[0] = a[0];\n out[1] = a[4];\n out[2] = a[8];\n out[3] = a[12];\n out[4] = a[1];\n out[5] = a[5];\n out[6] = a[9];\n out[7] = a[13];\n out[8] = a[2];\n out[9] = a[6];\n out[10] = a[10];\n out[11] = a[14];\n out[12] = a[3];\n out[13] = a[7];\n out[14] = a[11];\n out[15] = a[15];\n }\n \n return out;\n};\n\n/**\n * Inverts a mat4\n *\n * @param {mat4} out the receiving matrix\n * @param {mat4} a the source matrix\n * @returns {mat4} out\n */\nmat4.invert = function(out, a) {\n var a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3],\n a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7],\n a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11],\n a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15],\n\n b00 = a00 * a11 - a01 * a10,\n b01 = a00 * a12 - a02 * a10,\n b02 = a00 * a13 - a03 * a10,\n b03 = a01 * a12 - a02 * a11,\n b04 = a01 * a13 - a03 * a11,\n b05 = a02 * a13 - a03 * a12,\n b06 = a20 * a31 - a21 * a30,\n b07 = a20 * a32 - a22 * a30,\n b08 = a20 * a33 - a23 * a30,\n b09 = a21 * a32 - a22 * a31,\n b10 = a21 * a33 - a23 * a31,\n b11 = a22 * a33 - a23 * a32,\n\n // Calculate the determinant\n det = b00 * b11 - b01 * b10 + b02 * b09 + b03 * b08 - b04 * b07 + b05 * b06;\n\n if (!det) { \n return null; \n }\n det = 1.0 / det;\n\n out[0] = (a11 * b11 - a12 * b10 + a13 * b09) * det;\n out[1] = (a02 * b10 - a01 * b11 - a03 * b09) * det;\n out[2] = (a31 * b05 - a32 * b04 + a33 * b03) * det;\n out[3] = (a22 * b04 - a21 * b05 - a23 * b03) * det;\n out[4] = (a12 * b08 - a10 * b11 - a13 * b07) * det;\n out[5] = (a00 * b11 - a02 * b08 + a03 * b07) * det;\n out[6] = (a32 * b02 - a30 * b05 - a33 * b01) * det;\n out[7] = (a20 * b05 - a22 * b02 + a23 * b01) * det;\n out[8] = (a10 * b10 - a11 * b08 + a13 * b06) * det;\n out[9] = (a01 * b08 - a00 * b10 - a03 * b06) * det;\n out[10] = (a30 * b04 - a31 * b02 + a33 * b00) * det;\n out[11] = (a21 * b02 - a20 * b04 - a23 * b00) * det;\n out[12] = (a11 * b07 - a10 * b09 - a12 * b06) * det;\n out[13] = (a00 * b09 - a01 * b07 + a02 * b06) * det;\n out[14] = (a31 * b01 - a30 * b03 - a32 * b00) * det;\n out[15] = (a20 * b03 - a21 * b01 + a22 * b00) * det;\n\n return out;\n};\n\n/**\n * Calculates the adjugate of a mat4\n *\n * @param {mat4} out the receiving matrix\n * @param {mat4} a the source matrix\n * @returns {mat4} out\n */\nmat4.adjoint = function(out, a) {\n var a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3],\n a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7],\n a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11],\n a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15];\n\n out[0] = (a11 * (a22 * a33 - a23 * a32) - a21 * (a12 * a33 - a13 * a32) + a31 * (a12 * a23 - a13 * a22));\n out[1] = -(a01 * (a22 * a33 - a23 * a32) - a21 * (a02 * a33 - a03 * a32) + a31 * (a02 * a23 - a03 * a22));\n out[2] = (a01 * (a12 * a33 - a13 * a32) - a11 * (a02 * a33 - a03 * a32) + a31 * (a02 * a13 - a03 * a12));\n out[3] = -(a01 * (a12 * a23 - a13 * a22) - a11 * (a02 * a23 - a03 * a22) + a21 * (a02 * a13 - a03 * a12));\n out[4] = -(a10 * (a22 * a33 - a23 * a32) - a20 * (a12 * a33 - a13 * a32) + a30 * (a12 * a23 - a13 * a22));\n out[5] = (a00 * (a22 * a33 - a23 * a32) - a20 * (a02 * a33 - a03 * a32) + a30 * (a02 * a23 - a03 * a22));\n out[6] = -(a00 * (a12 * a33 - a13 * a32) - a10 * (a02 * a33 - a03 * a32) + a30 * (a02 * a13 - a03 * a12));\n out[7] = (a00 * (a12 * a23 - a13 * a22) - a10 * (a02 * a23 - a03 * a22) + a20 * (a02 * a13 - a03 * a12));\n out[8] = (a10 * (a21 * a33 - a23 * a31) - a20 * (a11 * a33 - a13 * a31) + a30 * (a11 * a23 - a13 * a21));\n out[9] = -(a00 * (a21 * a33 - a23 * a31) - a20 * (a01 * a33 - a03 * a31) + a30 * (a01 * a23 - a03 * a21));\n out[10] = (a00 * (a11 * a33 - a13 * a31) - a10 * (a01 * a33 - a03 * a31) + a30 * (a01 * a13 - a03 * a11));\n out[11] = -(a00 * (a11 * a23 - a13 * a21) - a10 * (a01 * a23 - a03 * a21) + a20 * (a01 * a13 - a03 * a11));\n out[12] = -(a10 * (a21 * a32 - a22 * a31) - a20 * (a11 * a32 - a12 * a31) + a30 * (a11 * a22 - a12 * a21));\n out[13] = (a00 * (a21 * a32 - a22 * a31) - a20 * (a01 * a32 - a02 * a31) + a30 * (a01 * a22 - a02 * a21));\n out[14] = -(a00 * (a11 * a32 - a12 * a31) - a10 * (a01 * a32 - a02 * a31) + a30 * (a01 * a12 - a02 * a11));\n out[15] = (a00 * (a11 * a22 - a12 * a21) - a10 * (a01 * a22 - a02 * a21) + a20 * (a01 * a12 - a02 * a11));\n return out;\n};\n\n/**\n * Calculates the determinant of a mat4\n *\n * @param {mat4} a the source matrix\n * @returns {Number} determinant of a\n */\nmat4.determinant = function (a) {\n var a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3],\n a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7],\n a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11],\n a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15],\n\n b00 = a00 * a11 - a01 * a10,\n b01 = a00 * a12 - a02 * a10,\n b02 = a00 * a13 - a03 * a10,\n b03 = a01 * a12 - a02 * a11,\n b04 = a01 * a13 - a03 * a11,\n b05 = a02 * a13 - a03 * a12,\n b06 = a20 * a31 - a21 * a30,\n b07 = a20 * a32 - a22 * a30,\n b08 = a20 * a33 - a23 * a30,\n b09 = a21 * a32 - a22 * a31,\n b10 = a21 * a33 - a23 * a31,\n b11 = a22 * a33 - a23 * a32;\n\n // Calculate the determinant\n return b00 * b11 - b01 * b10 + b02 * b09 + b03 * b08 - b04 * b07 + b05 * b06;\n};\n\n/**\n * Multiplies two mat4's\n *\n * @param {mat4} out the receiving matrix\n * @param {mat4} a the first operand\n * @param {mat4} b the second operand\n * @returns {mat4} out\n */\nmat4.multiply = function (out, a, b) {\n var a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3],\n a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7],\n a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11],\n a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15];\n\n // Cache only the current line of the second matrix\n var b0 = b[0], b1 = b[1], b2 = b[2], b3 = b[3]; \n out[0] = b0*a00 + b1*a10 + b2*a20 + b3*a30;\n out[1] = b0*a01 + b1*a11 + b2*a21 + b3*a31;\n out[2] = b0*a02 + b1*a12 + b2*a22 + b3*a32;\n out[3] = b0*a03 + b1*a13 + b2*a23 + b3*a33;\n\n b0 = b[4]; b1 = b[5]; b2 = b[6]; b3 = b[7];\n out[4] = b0*a00 + b1*a10 + b2*a20 + b3*a30;\n out[5] = b0*a01 + b1*a11 + b2*a21 + b3*a31;\n out[6] = b0*a02 + b1*a12 + b2*a22 + b3*a32;\n out[7] = b0*a03 + b1*a13 + b2*a23 + b3*a33;\n\n b0 = b[8]; b1 = b[9]; b2 = b[10]; b3 = b[11];\n out[8] = b0*a00 + b1*a10 + b2*a20 + b3*a30;\n out[9] = b0*a01 + b1*a11 + b2*a21 + b3*a31;\n out[10] = b0*a02 + b1*a12 + b2*a22 + b3*a32;\n out[11] = b0*a03 + b1*a13 + b2*a23 + b3*a33;\n\n b0 = b[12]; b1 = b[13]; b2 = b[14]; b3 = b[15];\n out[12] = b0*a00 + b1*a10 + b2*a20 + b3*a30;\n out[13] = b0*a01 + b1*a11 + b2*a21 + b3*a31;\n out[14] = b0*a02 + b1*a12 + b2*a22 + b3*a32;\n out[15] = b0*a03 + b1*a13 + b2*a23 + b3*a33;\n return out;\n};\n\n/**\n * Alias for {@link mat4.multiply}\n * @function\n */\nmat4.mul = mat4.multiply;\n\n/**\n * Translate a mat4 by the given vector\n *\n * @param {mat4} out the receiving matrix\n * @param {mat4} a the matrix to translate\n * @param {vec3} v vector to translate by\n * @returns {mat4} out\n */\nmat4.translate = function (out, a, v) {\n var x = v[0], y = v[1], z = v[2],\n a00, a01, a02, a03,\n a10, a11, a12, a13,\n a20, a21, a22, a23;\n\n if (a === out) {\n out[12] = a[0] * x + a[4] * y + a[8] * z + a[12];\n out[13] = a[1] * x + a[5] * y + a[9] * z + a[13];\n out[14] = a[2] * x + a[6] * y + a[10] * z + a[14];\n out[15] = a[3] * x + a[7] * y + a[11] * z + a[15];\n } else {\n a00 = a[0]; a01 = a[1]; a02 = a[2]; a03 = a[3];\n a10 = a[4]; a11 = a[5]; a12 = a[6]; a13 = a[7];\n a20 = a[8]; a21 = a[9]; a22 = a[10]; a23 = a[11];\n\n out[0] = a00; out[1] = a01; out[2] = a02; out[3] = a03;\n out[4] = a10; out[5] = a11; out[6] = a12; out[7] = a13;\n out[8] = a20; out[9] = a21; out[10] = a22; out[11] = a23;\n\n out[12] = a00 * x + a10 * y + a20 * z + a[12];\n out[13] = a01 * x + a11 * y + a21 * z + a[13];\n out[14] = a02 * x + a12 * y + a22 * z + a[14];\n out[15] = a03 * x + a13 * y + a23 * z + a[15];\n }\n\n return out;\n};\n\n/**\n * Scales the mat4 by the dimensions in the given vec3\n *\n * @param {mat4} out the receiving matrix\n * @param {mat4} a the matrix to scale\n * @param {vec3} v the vec3 to scale the matrix by\n * @returns {mat4} out\n **/\nmat4.scale = function(out, a, v) {\n var x = v[0], y = v[1], z = v[2];\n\n out[0] = a[0] * x;\n out[1] = a[1] * x;\n out[2] = a[2] * x;\n out[3] = a[3] * x;\n out[4] = a[4] * y;\n out[5] = a[5] * y;\n out[6] = a[6] * y;\n out[7] = a[7] * y;\n out[8] = a[8] * z;\n out[9] = a[9] * z;\n out[10] = a[10] * z;\n out[11] = a[11] * z;\n out[12] = a[12];\n out[13] = a[13];\n out[14] = a[14];\n out[15] = a[15];\n return out;\n};\n\n/**\n * Rotates a mat4 by the given angle around the given axis\n *\n * @param {mat4} out the receiving matrix\n * @param {mat4} a the matrix to rotate\n * @param {Number} rad the angle to rotate the matrix by\n * @param {vec3} axis the axis to rotate around\n * @returns {mat4} out\n */\nmat4.rotate = function (out, a, rad, axis) {\n var x = axis[0], y = axis[1], z = axis[2],\n len = Math.sqrt(x * x + y * y + z * z),\n s, c, t,\n a00, a01, a02, a03,\n a10, a11, a12, a13,\n a20, a21, a22, a23,\n b00, b01, b02,\n b10, b11, b12,\n b20, b21, b22;\n\n if (Math.abs(len) < glMatrix.EPSILON) { return null; }\n \n len = 1 / len;\n x *= len;\n y *= len;\n z *= len;\n\n s = Math.sin(rad);\n c = Math.cos(rad);\n t = 1 - c;\n\n a00 = a[0]; a01 = a[1]; a02 = a[2]; a03 = a[3];\n a10 = a[4]; a11 = a[5]; a12 = a[6]; a13 = a[7];\n a20 = a[8]; a21 = a[9]; a22 = a[10]; a23 = a[11];\n\n // Construct the elements of the rotation matrix\n b00 = x * x * t + c; b01 = y * x * t + z * s; b02 = z * x * t - y * s;\n b10 = x * y * t - z * s; b11 = y * y * t + c; b12 = z * y * t + x * s;\n b20 = x * z * t + y * s; b21 = y * z * t - x * s; b22 = z * z * t + c;\n\n // Perform rotation-specific matrix multiplication\n out[0] = a00 * b00 + a10 * b01 + a20 * b02;\n out[1] = a01 * b00 + a11 * b01 + a21 * b02;\n out[2] = a02 * b00 + a12 * b01 + a22 * b02;\n out[3] = a03 * b00 + a13 * b01 + a23 * b02;\n out[4] = a00 * b10 + a10 * b11 + a20 * b12;\n out[5] = a01 * b10 + a11 * b11 + a21 * b12;\n out[6] = a02 * b10 + a12 * b11 + a22 * b12;\n out[7] = a03 * b10 + a13 * b11 + a23 * b12;\n out[8] = a00 * b20 + a10 * b21 + a20 * b22;\n out[9] = a01 * b20 + a11 * b21 + a21 * b22;\n out[10] = a02 * b20 + a12 * b21 + a22 * b22;\n out[11] = a03 * b20 + a13 * b21 + a23 * b22;\n\n if (a !== out) { // If the source and destination differ, copy the unchanged last row\n out[12] = a[12];\n out[13] = a[13];\n out[14] = a[14];\n out[15] = a[15];\n }\n return out;\n};\n\n/**\n * Rotates a matrix by the given angle around the X axis\n *\n * @param {mat4} out the receiving matrix\n * @param {mat4} a the matrix to rotate\n * @param {Number} rad the angle to rotate the matrix by\n * @returns {mat4} out\n */\nmat4.rotateX = function (out, a, rad) {\n var s = Math.sin(rad),\n c = Math.cos(rad),\n a10 = a[4],\n a11 = a[5],\n a12 = a[6],\n a13 = a[7],\n a20 = a[8],\n a21 = a[9],\n a22 = a[10],\n a23 = a[11];\n\n if (a !== out) { // If the source and destination differ, copy the unchanged rows\n out[0] = a[0];\n out[1] = a[1];\n out[2] = a[2];\n out[3] = a[3];\n out[12] = a[12];\n out[13] = a[13];\n out[14] = a[14];\n out[15] = a[15];\n }\n\n // Perform axis-specific matrix multiplication\n out[4] = a10 * c + a20 * s;\n out[5] = a11 * c + a21 * s;\n out[6] = a12 * c + a22 * s;\n out[7] = a13 * c + a23 * s;\n out[8] = a20 * c - a10 * s;\n out[9] = a21 * c - a11 * s;\n out[10] = a22 * c - a12 * s;\n out[11] = a23 * c - a13 * s;\n return out;\n};\n\n/**\n * Rotates a matrix by the given angle around the Y axis\n *\n * @param {mat4} out the receiving matrix\n * @param {mat4} a the matrix to rotate\n * @param {Number} rad the angle to rotate the matrix by\n * @returns {mat4} out\n */\nmat4.rotateY = function (out, a, rad) {\n var s = Math.sin(rad),\n c = Math.cos(rad),\n a00 = a[0],\n a01 = a[1],\n a02 = a[2],\n a03 = a[3],\n a20 = a[8],\n a21 = a[9],\n a22 = a[10],\n a23 = a[11];\n\n if (a !== out) { // If the source and destination differ, copy the unchanged rows\n out[4] = a[4];\n out[5] = a[5];\n out[6] = a[6];\n out[7] = a[7];\n out[12] = a[12];\n out[13] = a[13];\n out[14] = a[14];\n out[15] = a[15];\n }\n\n // Perform axis-specific matrix multiplication\n out[0] = a00 * c - a20 * s;\n out[1] = a01 * c - a21 * s;\n out[2] = a02 * c - a22 * s;\n out[3] = a03 * c - a23 * s;\n out[8] = a00 * s + a20 * c;\n out[9] = a01 * s + a21 * c;\n out[10] = a02 * s + a22 * c;\n out[11] = a03 * s + a23 * c;\n return out;\n};\n\n/**\n * Rotates a matrix by the given angle around the Z axis\n *\n * @param {mat4} out the receiving matrix\n * @param {mat4} a the matrix to rotate\n * @param {Number} rad the angle to rotate the matrix by\n * @returns {mat4} out\n */\nmat4.rotateZ = function (out, a, rad) {\n var s = Math.sin(rad),\n c = Math.cos(rad),\n a00 = a[0],\n a01 = a[1],\n a02 = a[2],\n a03 = a[3],\n a10 = a[4],\n a11 = a[5],\n a12 = a[6],\n a13 = a[7];\n\n if (a !== out) { // If the source and destination differ, copy the unchanged last row\n out[8] = a[8];\n out[9] = a[9];\n out[10] = a[10];\n out[11] = a[11];\n out[12] = a[12];\n out[13] = a[13];\n out[14] = a[14];\n out[15] = a[15];\n }\n\n // Perform axis-specific matrix multiplication\n out[0] = a00 * c + a10 * s;\n out[1] = a01 * c + a11 * s;\n out[2] = a02 * c + a12 * s;\n out[3] = a03 * c + a13 * s;\n out[4] = a10 * c - a00 * s;\n out[5] = a11 * c - a01 * s;\n out[6] = a12 * c - a02 * s;\n out[7] = a13 * c - a03 * s;\n return out;\n};\n\n/**\n * Creates a matrix from a vector translation\n * This is equivalent to (but much faster than):\n *\n * mat4.identity(dest);\n * mat4.translate(dest, dest, vec);\n *\n * @param {mat4} out mat4 receiving operation result\n * @param {vec3} v Translation vector\n * @returns {mat4} out\n */\nmat4.fromTranslation = function(out, v) {\n out[0] = 1;\n out[1] = 0;\n out[2] = 0;\n out[3] = 0;\n out[4] = 0;\n out[5] = 1;\n out[6] = 0;\n out[7] = 0;\n out[8] = 0;\n out[9] = 0;\n out[10] = 1;\n out[11] = 0;\n out[12] = v[0];\n out[13] = v[1];\n out[14] = v[2];\n out[15] = 1;\n return out;\n}\n\n/**\n * Creates a matrix from a vector scaling\n * This is equivalent to (but much faster than):\n *\n * mat4.identity(dest);\n * mat4.scale(dest, dest, vec);\n *\n * @param {mat4} out mat4 receiving operation result\n * @param {vec3} v Scaling vector\n * @returns {mat4} out\n */\nmat4.fromScaling = function(out, v) {\n out[0] = v[0];\n out[1] = 0;\n out[2] = 0;\n out[3] = 0;\n out[4] = 0;\n out[5] = v[1];\n out[6] = 0;\n out[7] = 0;\n out[8] = 0;\n out[9] = 0;\n out[10] = v[2];\n out[11] = 0;\n out[12] = 0;\n out[13] = 0;\n out[14] = 0;\n out[15] = 1;\n return out;\n}\n\n/**\n * Creates a matrix from a given angle around a given axis\n * This is equivalent to (but much faster than):\n *\n * mat4.identity(dest);\n * mat4.rotate(dest, dest, rad, axis);\n *\n * @param {mat4} out mat4 receiving operation result\n * @param {Number} rad the angle to rotate the matrix by\n * @param {vec3} axis the axis to rotate around\n * @returns {mat4} out\n */\nmat4.fromRotation = function(out, rad, axis) {\n var x = axis[0], y = axis[1], z = axis[2],\n len = Math.sqrt(x * x + y * y + z * z),\n s, c, t;\n \n if (Math.abs(len) < glMatrix.EPSILON) { return null; }\n \n len = 1 / len;\n x *= len;\n y *= len;\n z *= len;\n \n s = Math.sin(rad);\n c = Math.cos(rad);\n t = 1 - c;\n \n // Perform rotation-specific matrix multiplication\n out[0] = x * x * t + c;\n out[1] = y * x * t + z * s;\n out[2] = z * x * t - y * s;\n out[3] = 0;\n out[4] = x * y * t - z * s;\n out[5] = y * y * t + c;\n out[6] = z * y * t + x * s;\n out[7] = 0;\n out[8] = x * z * t + y * s;\n out[9] = y * z * t - x * s;\n out[10] = z * z * t + c;\n out[11] = 0;\n out[12] = 0;\n out[13] = 0;\n out[14] = 0;\n out[15] = 1;\n return out;\n}\n\n/**\n * Creates a matrix from the given angle around the X axis\n * This is equivalent to (but much faster than):\n *\n * mat4.identity(dest);\n * mat4.rotateX(dest, dest, rad);\n *\n * @param {mat4} out mat4 receiving operation result\n * @param {Number} rad the angle to rotate the matrix by\n * @returns {mat4} out\n */\nmat4.fromXRotation = function(out, rad) {\n var s = Math.sin(rad),\n c = Math.cos(rad);\n \n // Perform axis-specific matrix multiplication\n out[0] = 1;\n out[1] = 0;\n out[2] = 0;\n out[3] = 0;\n out[4] = 0;\n out[5] = c;\n out[6] = s;\n out[7] = 0;\n out[8] = 0;\n out[9] = -s;\n out[10] = c;\n out[11] = 0;\n out[12] = 0;\n out[13] = 0;\n out[14] = 0;\n out[15] = 1;\n return out;\n}\n\n/**\n * Creates a matrix from the given angle around the Y axis\n * This is equivalent to (but much faster than):\n *\n * mat4.identity(dest);\n * mat4.rotateY(dest, dest, rad);\n *\n * @param {mat4} out mat4 receiving operation result\n * @param {Number} rad the angle to rotate the matrix by\n * @returns {mat4} out\n */\nmat4.fromYRotation = function(out, rad) {\n var s = Math.sin(rad),\n c = Math.cos(rad);\n \n // Perform axis-specific matrix multiplication\n out[0] = c;\n out[1] = 0;\n out[2] = -s;\n out[3] = 0;\n out[4] = 0;\n out[5] = 1;\n out[6] = 0;\n out[7] = 0;\n out[8] = s;\n out[9] = 0;\n out[10] = c;\n out[11] = 0;\n out[12] = 0;\n out[13] = 0;\n out[14] = 0;\n out[15] = 1;\n return out;\n}\n\n/**\n * Creates a matrix from the given angle around the Z axis\n * This is equivalent to (but much faster than):\n *\n * mat4.identity(dest);\n * mat4.rotateZ(dest, dest, rad);\n *\n * @param {mat4} out mat4 receiving operation result\n * @param {Number} rad the angle to rotate the matrix by\n * @returns {mat4} out\n */\nmat4.fromZRotation = function(out, rad) {\n var s = Math.sin(rad),\n c = Math.cos(rad);\n \n // Perform axis-specific matrix multiplication\n out[0] = c;\n out[1] = s;\n out[2] = 0;\n out[3] = 0;\n out[4] = -s;\n out[5] = c;\n out[6] = 0;\n out[7] = 0;\n out[8] = 0;\n out[9] = 0;\n out[10] = 1;\n out[11] = 0;\n out[12] = 0;\n out[13] = 0;\n out[14] = 0;\n out[15] = 1;\n return out;\n}\n\n/**\n * Creates a matrix from a quaternion rotation and vector translation\n * This is equivalent to (but much faster than):\n *\n * mat4.identity(dest);\n * mat4.translate(dest, vec);\n * var quatMat = mat4.create();\n * quat4.toMat4(quat, quatMat);\n * mat4.multiply(dest, quatMat);\n *\n * @param {mat4} out mat4 receiving operation result\n * @param {quat4} q Rotation quaternion\n * @param {vec3} v Translation vector\n * @returns {mat4} out\n */\nmat4.fromRotationTranslation = function (out, q, v) {\n // Quaternion math\n var x = q[0], y = q[1], z = q[2], w = q[3],\n x2 = x + x,\n y2 = y + y,\n z2 = z + z,\n\n xx = x * x2,\n xy = x * y2,\n xz = x * z2,\n yy = y * y2,\n yz = y * z2,\n zz = z * z2,\n wx = w * x2,\n wy = w * y2,\n wz = w * z2;\n\n out[0] = 1 - (yy + zz);\n out[1] = xy + wz;\n out[2] = xz - wy;\n out[3] = 0;\n out[4] = xy - wz;\n out[5] = 1 - (xx + zz);\n out[6] = yz + wx;\n out[7] = 0;\n out[8] = xz + wy;\n out[9] = yz - wx;\n out[10] = 1 - (xx + yy);\n out[11] = 0;\n out[12] = v[0];\n out[13] = v[1];\n out[14] = v[2];\n out[15] = 1;\n \n return out;\n};\n\n/**\n * Creates a matrix from a quaternion rotation, vector translation and vector scale\n * This is equivalent to (but much faster than):\n *\n * mat4.identity(dest);\n * mat4.translate(dest, vec);\n * var quatMat = mat4.create();\n * quat4.toMat4(quat, quatMat);\n * mat4.multiply(dest, quatMat);\n * mat4.scale(dest, scale)\n *\n * @param {mat4} out mat4 receiving operation result\n * @param {quat4} q Rotation quaternion\n * @param {vec3} v Translation vector\n * @param {vec3} s Scaling vector\n * @returns {mat4} out\n */\nmat4.fromRotationTranslationScale = function (out, q, v, s) {\n // Quaternion math\n var x = q[0], y = q[1], z = q[2], w = q[3],\n x2 = x + x,\n y2 = y + y,\n z2 = z + z,\n\n xx = x * x2,\n xy = x * y2,\n xz = x * z2,\n yy = y * y2,\n yz = y * z2,\n zz = z * z2,\n wx = w * x2,\n wy = w * y2,\n wz = w * z2,\n sx = s[0],\n sy = s[1],\n sz = s[2];\n\n out[0] = (1 - (yy + zz)) * sx;\n out[1] = (xy + wz) * sx;\n out[2] = (xz - wy) * sx;\n out[3] = 0;\n out[4] = (xy - wz) * sy;\n out[5] = (1 - (xx + zz)) * sy;\n out[6] = (yz + wx) * sy;\n out[7] = 0;\n out[8] = (xz + wy) * sz;\n out[9] = (yz - wx) * sz;\n out[10] = (1 - (xx + yy)) * sz;\n out[11] = 0;\n out[12] = v[0];\n out[13] = v[1];\n out[14] = v[2];\n out[15] = 1;\n \n return out;\n};\n\n/**\n * Creates a matrix from a quaternion rotation, vector translation and vector scale, rotating and scaling around the given origin\n * This is equivalent to (but much faster than):\n *\n * mat4.identity(dest);\n * mat4.translate(dest, vec);\n * mat4.translate(dest, origin);\n * var quatMat = mat4.create();\n * quat4.toMat4(quat, quatMat);\n * mat4.multiply(dest, quatMat);\n * mat4.scale(dest, scale)\n * mat4.translate(dest, negativeOrigin);\n *\n * @param {mat4} out mat4 receiving operation result\n * @param {quat4} q Rotation quaternion\n * @param {vec3} v Translation vector\n * @param {vec3} s Scaling vector\n * @param {vec3} o The origin vector around which to scale and rotate\n * @returns {mat4} out\n */\nmat4.fromRotationTranslationScaleOrigin = function (out, q, v, s, o) {\n // Quaternion math\n var x = q[0], y = q[1], z = q[2], w = q[3],\n x2 = x + x,\n y2 = y + y,\n z2 = z + z,\n\n xx = x * x2,\n xy = x * y2,\n xz = x * z2,\n yy = y * y2,\n yz = y * z2,\n zz = z * z2,\n wx = w * x2,\n wy = w * y2,\n wz = w * z2,\n \n sx = s[0],\n sy = s[1],\n sz = s[2],\n\n ox = o[0],\n oy = o[1],\n oz = o[2];\n \n out[0] = (1 - (yy + zz)) * sx;\n out[1] = (xy + wz) * sx;\n out[2] = (xz - wy) * sx;\n out[3] = 0;\n out[4] = (xy - wz) * sy;\n out[5] = (1 - (xx + zz)) * sy;\n out[6] = (yz + wx) * sy;\n out[7] = 0;\n out[8] = (xz + wy) * sz;\n out[9] = (yz - wx) * sz;\n out[10] = (1 - (xx + yy)) * sz;\n out[11] = 0;\n out[12] = v[0] + ox - (out[0] * ox + out[4] * oy + out[8] * oz);\n out[13] = v[1] + oy - (out[1] * ox + out[5] * oy + out[9] * oz);\n out[14] = v[2] + oz - (out[2] * ox + out[6] * oy + out[10] * oz);\n out[15] = 1;\n \n return out;\n};\n\nmat4.fromQuat = function (out, q) {\n var x = q[0], y = q[1], z = q[2], w = q[3],\n x2 = x + x,\n y2 = y + y,\n z2 = z + z,\n\n xx = x * x2,\n yx = y * x2,\n yy = y * y2,\n zx = z * x2,\n zy = z * y2,\n zz = z * z2,\n wx = w * x2,\n wy = w * y2,\n wz = w * z2;\n\n out[0] = 1 - yy - zz;\n out[1] = yx + wz;\n out[2] = zx - wy;\n out[3] = 0;\n\n out[4] = yx - wz;\n out[5] = 1 - xx - zz;\n out[6] = zy + wx;\n out[7] = 0;\n\n out[8] = zx + wy;\n out[9] = zy - wx;\n out[10] = 1 - xx - yy;\n out[11] = 0;\n\n out[12] = 0;\n out[13] = 0;\n out[14] = 0;\n out[15] = 1;\n\n return out;\n};\n\n/**\n * Generates a frustum matrix with the given bounds\n *\n * @param {mat4} out mat4 frustum matrix will be written into\n * @param {Number} left Left bound of the frustum\n * @param {Number} right Right bound of the frustum\n * @param {Number} bottom Bottom bound of the frustum\n * @param {Number} top Top bound of the frustum\n * @param {Number} near Near bound of the frustum\n * @param {Number} far Far bound of the frustum\n * @returns {mat4} out\n */\nmat4.frustum = function (out, left, right, bottom, top, near, far) {\n var rl = 1 / (right - left),\n tb = 1 / (top - bottom),\n nf = 1 / (near - far);\n out[0] = (near * 2) * rl;\n out[1] = 0;\n out[2] = 0;\n out[3] = 0;\n out[4] = 0;\n out[5] = (near * 2) * tb;\n out[6] = 0;\n out[7] = 0;\n out[8] = (right + left) * rl;\n out[9] = (top + bottom) * tb;\n out[10] = (far + near) * nf;\n out[11] = -1;\n out[12] = 0;\n out[13] = 0;\n out[14] = (far * near * 2) * nf;\n out[15] = 0;\n return out;\n};\n\n/**\n * Generates a perspective projection matrix with the given bounds\n *\n * @param {mat4} out mat4 frustum matrix will be written into\n * @param {number} fovy Vertical field of view in radians\n * @param {number} aspect Aspect ratio. typically viewport width/height\n * @param {number} near Near bound of the frustum\n * @param {number} far Far bound of the frustum\n * @returns {mat4} out\n */\nmat4.perspective = function (out, fovy, aspect, near, far) {\n var f = 1.0 / Math.tan(fovy / 2),\n nf = 1 / (near - far);\n out[0] = f / aspect;\n out[1] = 0;\n out[2] = 0;\n out[3] = 0;\n out[4] = 0;\n out[5] = f;\n out[6] = 0;\n out[7] = 0;\n out[8] = 0;\n out[9] = 0;\n out[10] = (far + near) * nf;\n out[11] = -1;\n out[12] = 0;\n out[13] = 0;\n out[14] = (2 * far * near) * nf;\n out[15] = 0;\n return out;\n};\n\n/**\n * Generates a perspective projection matrix with the given field of view.\n * This is primarily useful for generating projection matrices to be used\n * with the still experiemental WebVR API.\n *\n * @param {mat4} out mat4 frustum matrix will be written into\n * @param {number} fov Object containing the following values: upDegrees, downDegrees, leftDegrees, rightDegrees\n * @param {number} near Near bound of the frustum\n * @param {number} far Far bound of the frustum\n * @returns {mat4} out\n */\nmat4.perspectiveFromFieldOfView = function (out, fov, near, far) {\n var upTan = Math.tan(fov.upDegrees * Math.PI/180.0),\n downTan = Math.tan(fov.downDegrees * Math.PI/180.0),\n leftTan = Math.tan(fov.leftDegrees * Math.PI/180.0),\n rightTan = Math.tan(fov.rightDegrees * Math.PI/180.0),\n xScale = 2.0 / (leftTan + rightTan),\n yScale = 2.0 / (upTan + downTan);\n\n out[0] = xScale;\n out[1] = 0.0;\n out[2] = 0.0;\n out[3] = 0.0;\n out[4] = 0.0;\n out[5] = yScale;\n out[6] = 0.0;\n out[7] = 0.0;\n out[8] = -((leftTan - rightTan) * xScale * 0.5);\n out[9] = ((upTan - downTan) * yScale * 0.5);\n out[10] = far / (near - far);\n out[11] = -1.0;\n out[12] = 0.0;\n out[13] = 0.0;\n out[14] = (far * near) / (near - far);\n out[15] = 0.0;\n return out;\n}\n\n/**\n * Generates a orthogonal projection matrix with the given bounds\n *\n * @param {mat4} out mat4 frustum matrix will be written into\n * @param {number} left Left bound of the frustum\n * @param {number} right Right bound of the frustum\n * @param {number} bottom Bottom bound of the frustum\n * @param {number} top Top bound of the frustum\n * @param {number} near Near bound of the frustum\n * @param {number} far Far bound of the frustum\n * @returns {mat4} out\n */\nmat4.ortho = function (out, left, right, bottom, top, near, far) {\n var lr = 1 / (left - right),\n bt = 1 / (bottom - top),\n nf = 1 / (near - far);\n out[0] = -2 * lr;\n out[1] = 0;\n out[2] = 0;\n out[3] = 0;\n out[4] = 0;\n out[5] = -2 * bt;\n out[6] = 0;\n out[7] = 0;\n out[8] = 0;\n out[9] = 0;\n out[10] = 2 * nf;\n out[11] = 0;\n out[12] = (left + right) * lr;\n out[13] = (top + bottom) * bt;\n out[14] = (far + near) * nf;\n out[15] = 1;\n return out;\n};\n\n/**\n * Generates a look-at matrix with the given eye position, focal point, and up axis\n *\n * @param {mat4} out mat4 frustum matrix will be written into\n * @param {vec3} eye Position of the viewer\n * @param {vec3} center Point the viewer is looking at\n * @param {vec3} up vec3 pointing up\n * @returns {mat4} out\n */\nmat4.lookAt = function (out, eye, center, up) {\n var x0, x1, x2, y0, y1, y2, z0, z1, z2, len,\n eyex = eye[0],\n eyey = eye[1],\n eyez = eye[2],\n upx = up[0],\n upy = up[1],\n upz = up[2],\n centerx = center[0],\n centery = center[1],\n centerz = center[2];\n\n if (Math.abs(eyex - centerx) < glMatrix.EPSILON &&\n Math.abs(eyey - centery) < glMatrix.EPSILON &&\n Math.abs(eyez - centerz) < glMatrix.EPSILON) {\n return mat4.identity(out);\n }\n\n z0 = eyex - centerx;\n z1 = eyey - centery;\n z2 = eyez - centerz;\n\n len = 1 / Math.sqrt(z0 * z0 + z1 * z1 + z2 * z2);\n z0 *= len;\n z1 *= len;\n z2 *= len;\n\n x0 = upy * z2 - upz * z1;\n x1 = upz * z0 - upx * z2;\n x2 = upx * z1 - upy * z0;\n len = Math.sqrt(x0 * x0 + x1 * x1 + x2 * x2);\n if (!len) {\n x0 = 0;\n x1 = 0;\n x2 = 0;\n } else {\n len = 1 / len;\n x0 *= len;\n x1 *= len;\n x2 *= len;\n }\n\n y0 = z1 * x2 - z2 * x1;\n y1 = z2 * x0 - z0 * x2;\n y2 = z0 * x1 - z1 * x0;\n\n len = Math.sqrt(y0 * y0 + y1 * y1 + y2 * y2);\n if (!len) {\n y0 = 0;\n y1 = 0;\n y2 = 0;\n } else {\n len = 1 / len;\n y0 *= len;\n y1 *= len;\n y2 *= len;\n }\n\n out[0] = x0;\n out[1] = y0;\n out[2] = z0;\n out[3] = 0;\n out[4] = x1;\n out[5] = y1;\n out[6] = z1;\n out[7] = 0;\n out[8] = x2;\n out[9] = y2;\n out[10] = z2;\n out[11] = 0;\n out[12] = -(x0 * eyex + x1 * eyey + x2 * eyez);\n out[13] = -(y0 * eyex + y1 * eyey + y2 * eyez);\n out[14] = -(z0 * eyex + z1 * eyey + z2 * eyez);\n out[15] = 1;\n\n return out;\n};\n\n/**\n * Returns a string representation of a mat4\n *\n * @param {mat4} mat matrix to represent as a string\n * @returns {String} string representation of the matrix\n */\nmat4.str = function (a) {\n return 'mat4(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' + a[3] + ', ' +\n a[4] + ', ' + a[5] + ', ' + a[6] + ', ' + a[7] + ', ' +\n a[8] + ', ' + a[9] + ', ' + a[10] + ', ' + a[11] + ', ' + \n a[12] + ', ' + a[13] + ', ' + a[14] + ', ' + a[15] + ')';\n};\n\n/**\n * Returns Frobenius norm of a mat4\n *\n * @param {mat4} a the matrix to calculate Frobenius norm of\n * @returns {Number} Frobenius norm\n */\nmat4.frob = function (a) {\n return(Math.sqrt(Math.pow(a[0], 2) + Math.pow(a[1], 2) + Math.pow(a[2], 2) + Math.pow(a[3], 2) + Math.pow(a[4], 2) + Math.pow(a[5], 2) + Math.pow(a[6], 2) + Math.pow(a[7], 2) + Math.pow(a[8], 2) + Math.pow(a[9], 2) + Math.pow(a[10], 2) + Math.pow(a[11], 2) + Math.pow(a[12], 2) + Math.pow(a[13], 2) + Math.pow(a[14], 2) + Math.pow(a[15], 2) ))\n};\n\n\nmodule.exports = mat4;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/gl-matrix/src/gl-matrix/mat4.js\n ** module id = 14\n ** module chunks = 0\n **/","/* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV.\n\nPermission is hereby granted, free of charge, to any person obtaining a copy\nof this software and associated documentation files (the \"Software\"), to deal\nin the Software without restriction, including without limitation the rights\nto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\ncopies of the Software, and to permit persons to whom the Software is\nfurnished to do so, subject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in\nall copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\nFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\nAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\nLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\nOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\nTHE SOFTWARE. */\n\nvar glMatrix = require(\"./common.js\");\nvar mat3 = require(\"./mat3.js\");\nvar vec3 = require(\"./vec3.js\");\nvar vec4 = require(\"./vec4.js\");\n\n/**\n * @class Quaternion\n * @name quat\n */\nvar quat = {};\n\n/**\n * Creates a new identity quat\n *\n * @returns {quat} a new quaternion\n */\nquat.create = function() {\n var out = new glMatrix.ARRAY_TYPE(4);\n out[0] = 0;\n out[1] = 0;\n out[2] = 0;\n out[3] = 1;\n return out;\n};\n\n/**\n * Sets a quaternion to represent the shortest rotation from one\n * vector to another.\n *\n * Both vectors are assumed to be unit length.\n *\n * @param {quat} out the receiving quaternion.\n * @param {vec3} a the initial vector\n * @param {vec3} b the destination vector\n * @returns {quat} out\n */\nquat.rotationTo = (function() {\n var tmpvec3 = vec3.create();\n var xUnitVec3 = vec3.fromValues(1,0,0);\n var yUnitVec3 = vec3.fromValues(0,1,0);\n\n return function(out, a, b) {\n var dot = vec3.dot(a, b);\n if (dot < -0.999999) {\n vec3.cross(tmpvec3, xUnitVec3, a);\n if (vec3.length(tmpvec3) < 0.000001)\n vec3.cross(tmpvec3, yUnitVec3, a);\n vec3.normalize(tmpvec3, tmpvec3);\n quat.setAxisAngle(out, tmpvec3, Math.PI);\n return out;\n } else if (dot > 0.999999) {\n out[0] = 0;\n out[1] = 0;\n out[2] = 0;\n out[3] = 1;\n return out;\n } else {\n vec3.cross(tmpvec3, a, b);\n out[0] = tmpvec3[0];\n out[1] = tmpvec3[1];\n out[2] = tmpvec3[2];\n out[3] = 1 + dot;\n return quat.normalize(out, out);\n }\n };\n})();\n\n/**\n * Sets the specified quaternion with values corresponding to the given\n * axes. Each axis is a vec3 and is expected to be unit length and\n * perpendicular to all other specified axes.\n *\n * @param {vec3} view the vector representing the viewing direction\n * @param {vec3} right the vector representing the local \"right\" direction\n * @param {vec3} up the vector representing the local \"up\" direction\n * @returns {quat} out\n */\nquat.setAxes = (function() {\n var matr = mat3.create();\n\n return function(out, view, right, up) {\n matr[0] = right[0];\n matr[3] = right[1];\n matr[6] = right[2];\n\n matr[1] = up[0];\n matr[4] = up[1];\n matr[7] = up[2];\n\n matr[2] = -view[0];\n matr[5] = -view[1];\n matr[8] = -view[2];\n\n return quat.normalize(out, quat.fromMat3(out, matr));\n };\n})();\n\n/**\n * Creates a new quat initialized with values from an existing quaternion\n *\n * @param {quat} a quaternion to clone\n * @returns {quat} a new quaternion\n * @function\n */\nquat.clone = vec4.clone;\n\n/**\n * Creates a new quat initialized with the given values\n *\n * @param {Number} x X component\n * @param {Number} y Y component\n * @param {Number} z Z component\n * @param {Number} w W component\n * @returns {quat} a new quaternion\n * @function\n */\nquat.fromValues = vec4.fromValues;\n\n/**\n * Copy the values from one quat to another\n *\n * @param {quat} out the receiving quaternion\n * @param {quat} a the source quaternion\n * @returns {quat} out\n * @function\n */\nquat.copy = vec4.copy;\n\n/**\n * Set the components of a quat to the given values\n *\n * @param {quat} out the receiving quaternion\n * @param {Number} x X component\n * @param {Number} y Y component\n * @param {Number} z Z component\n * @param {Number} w W component\n * @returns {quat} out\n * @function\n */\nquat.set = vec4.set;\n\n/**\n * Set a quat to the identity quaternion\n *\n * @param {quat} out the receiving quaternion\n * @returns {quat} out\n */\nquat.identity = function(out) {\n out[0] = 0;\n out[1] = 0;\n out[2] = 0;\n out[3] = 1;\n return out;\n};\n\n/**\n * Sets a quat from the given angle and rotation axis,\n * then returns it.\n *\n * @param {quat} out the receiving quaternion\n * @param {vec3} axis the axis around which to rotate\n * @param {Number} rad the angle in radians\n * @returns {quat} out\n **/\nquat.setAxisAngle = function(out, axis, rad) {\n rad = rad * 0.5;\n var s = Math.sin(rad);\n out[0] = s * axis[0];\n out[1] = s * axis[1];\n out[2] = s * axis[2];\n out[3] = Math.cos(rad);\n return out;\n};\n\n/**\n * Adds two quat's\n *\n * @param {quat} out the receiving quaternion\n * @param {quat} a the first operand\n * @param {quat} b the second operand\n * @returns {quat} out\n * @function\n */\nquat.add = vec4.add;\n\n/**\n * Multiplies two quat's\n *\n * @param {quat} out the receiving quaternion\n * @param {quat} a the first operand\n * @param {quat} b the second operand\n * @returns {quat} out\n */\nquat.multiply = function(out, a, b) {\n var ax = a[0], ay = a[1], az = a[2], aw = a[3],\n bx = b[0], by = b[1], bz = b[2], bw = b[3];\n\n out[0] = ax * bw + aw * bx + ay * bz - az * by;\n out[1] = ay * bw + aw * by + az * bx - ax * bz;\n out[2] = az * bw + aw * bz + ax * by - ay * bx;\n out[3] = aw * bw - ax * bx - ay * by - az * bz;\n return out;\n};\n\n/**\n * Alias for {@link quat.multiply}\n * @function\n */\nquat.mul = quat.multiply;\n\n/**\n * Scales a quat by a scalar number\n *\n * @param {quat} out the receiving vector\n * @param {quat} a the vector to scale\n * @param {Number} b amount to scale the vector by\n * @returns {quat} out\n * @function\n */\nquat.scale = vec4.scale;\n\n/**\n * Rotates a quaternion by the given angle about the X axis\n *\n * @param {quat} out quat receiving operation result\n * @param {quat} a quat to rotate\n * @param {number} rad angle (in radians) to rotate\n * @returns {quat} out\n */\nquat.rotateX = function (out, a, rad) {\n rad *= 0.5; \n\n var ax = a[0], ay = a[1], az = a[2], aw = a[3],\n bx = Math.sin(rad), bw = Math.cos(rad);\n\n out[0] = ax * bw + aw * bx;\n out[1] = ay * bw + az * bx;\n out[2] = az * bw - ay * bx;\n out[3] = aw * bw - ax * bx;\n return out;\n};\n\n/**\n * Rotates a quaternion by the given angle about the Y axis\n *\n * @param {quat} out quat receiving operation result\n * @param {quat} a quat to rotate\n * @param {number} rad angle (in radians) to rotate\n * @returns {quat} out\n */\nquat.rotateY = function (out, a, rad) {\n rad *= 0.5; \n\n var ax = a[0], ay = a[1], az = a[2], aw = a[3],\n by = Math.sin(rad), bw = Math.cos(rad);\n\n out[0] = ax * bw - az * by;\n out[1] = ay * bw + aw * by;\n out[2] = az * bw + ax * by;\n out[3] = aw * bw - ay * by;\n return out;\n};\n\n/**\n * Rotates a quaternion by the given angle about the Z axis\n *\n * @param {quat} out quat receiving operation result\n * @param {quat} a quat to rotate\n * @param {number} rad angle (in radians) to rotate\n * @returns {quat} out\n */\nquat.rotateZ = function (out, a, rad) {\n rad *= 0.5; \n\n var ax = a[0], ay = a[1], az = a[2], aw = a[3],\n bz = Math.sin(rad), bw = Math.cos(rad);\n\n out[0] = ax * bw + ay * bz;\n out[1] = ay * bw - ax * bz;\n out[2] = az * bw + aw * bz;\n out[3] = aw * bw - az * bz;\n return out;\n};\n\n/**\n * Calculates the W component of a quat from the X, Y, and Z components.\n * Assumes that quaternion is 1 unit in length.\n * Any existing W component will be ignored.\n *\n * @param {quat} out the receiving quaternion\n * @param {quat} a quat to calculate W component of\n * @returns {quat} out\n */\nquat.calculateW = function (out, a) {\n var x = a[0], y = a[1], z = a[2];\n\n out[0] = x;\n out[1] = y;\n out[2] = z;\n out[3] = Math.sqrt(Math.abs(1.0 - x * x - y * y - z * z));\n return out;\n};\n\n/**\n * Calculates the dot product of two quat's\n *\n * @param {quat} a the first operand\n * @param {quat} b the second operand\n * @returns {Number} dot product of a and b\n * @function\n */\nquat.dot = vec4.dot;\n\n/**\n * Performs a linear interpolation between two quat's\n *\n * @param {quat} out the receiving quaternion\n * @param {quat} a the first operand\n * @param {quat} b the second operand\n * @param {Number} t interpolation amount between the two inputs\n * @returns {quat} out\n * @function\n */\nquat.lerp = vec4.lerp;\n\n/**\n * Performs a spherical linear interpolation between two quat\n *\n * @param {quat} out the receiving quaternion\n * @param {quat} a the first operand\n * @param {quat} b the second operand\n * @param {Number} t interpolation amount between the two inputs\n * @returns {quat} out\n */\nquat.slerp = function (out, a, b, t) {\n // benchmarks:\n // http://jsperf.com/quaternion-slerp-implementations\n\n var ax = a[0], ay = a[1], az = a[2], aw = a[3],\n bx = b[0], by = b[1], bz = b[2], bw = b[3];\n\n var omega, cosom, sinom, scale0, scale1;\n\n // calc cosine\n cosom = ax * bx + ay * by + az * bz + aw * bw;\n // adjust signs (if necessary)\n if ( cosom < 0.0 ) {\n cosom = -cosom;\n bx = - bx;\n by = - by;\n bz = - bz;\n bw = - bw;\n }\n // calculate coefficients\n if ( (1.0 - cosom) > 0.000001 ) {\n // standard case (slerp)\n omega = Math.acos(cosom);\n sinom = Math.sin(omega);\n scale0 = Math.sin((1.0 - t) * omega) / sinom;\n scale1 = Math.sin(t * omega) / sinom;\n } else { \n // \"from\" and \"to\" quaternions are very close \n // ... so we can do a linear interpolation\n scale0 = 1.0 - t;\n scale1 = t;\n }\n // calculate final values\n out[0] = scale0 * ax + scale1 * bx;\n out[1] = scale0 * ay + scale1 * by;\n out[2] = scale0 * az + scale1 * bz;\n out[3] = scale0 * aw + scale1 * bw;\n \n return out;\n};\n\n/**\n * Performs a spherical linear interpolation with two control points\n *\n * @param {quat} out the receiving quaternion\n * @param {quat} a the first operand\n * @param {quat} b the second operand\n * @param {quat} c the third operand\n * @param {quat} d the fourth operand\n * @param {Number} t interpolation amount\n * @returns {quat} out\n */\nquat.sqlerp = (function () {\n var temp1 = quat.create();\n var temp2 = quat.create();\n \n return function (out, a, b, c, d, t) {\n quat.slerp(temp1, a, d, t);\n quat.slerp(temp2, b, c, t);\n quat.slerp(out, temp1, temp2, 2 * t * (1 - t));\n \n return out;\n };\n}());\n\n/**\n * Calculates the inverse of a quat\n *\n * @param {quat} out the receiving quaternion\n * @param {quat} a quat to calculate inverse of\n * @returns {quat} out\n */\nquat.invert = function(out, a) {\n var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3],\n dot = a0*a0 + a1*a1 + a2*a2 + a3*a3,\n invDot = dot ? 1.0/dot : 0;\n \n // TODO: Would be faster to return [0,0,0,0] immediately if dot == 0\n\n out[0] = -a0*invDot;\n out[1] = -a1*invDot;\n out[2] = -a2*invDot;\n out[3] = a3*invDot;\n return out;\n};\n\n/**\n * Calculates the conjugate of a quat\n * If the quaternion is normalized, this function is faster than quat.inverse and produces the same result.\n *\n * @param {quat} out the receiving quaternion\n * @param {quat} a quat to calculate conjugate of\n * @returns {quat} out\n */\nquat.conjugate = function (out, a) {\n out[0] = -a[0];\n out[1] = -a[1];\n out[2] = -a[2];\n out[3] = a[3];\n return out;\n};\n\n/**\n * Calculates the length of a quat\n *\n * @param {quat} a vector to calculate length of\n * @returns {Number} length of a\n * @function\n */\nquat.length = vec4.length;\n\n/**\n * Alias for {@link quat.length}\n * @function\n */\nquat.len = quat.length;\n\n/**\n * Calculates the squared length of a quat\n *\n * @param {quat} a vector to calculate squared length of\n * @returns {Number} squared length of a\n * @function\n */\nquat.squaredLength = vec4.squaredLength;\n\n/**\n * Alias for {@link quat.squaredLength}\n * @function\n */\nquat.sqrLen = quat.squaredLength;\n\n/**\n * Normalize a quat\n *\n * @param {quat} out the receiving quaternion\n * @param {quat} a quaternion to normalize\n * @returns {quat} out\n * @function\n */\nquat.normalize = vec4.normalize;\n\n/**\n * Creates a quaternion from the given 3x3 rotation matrix.\n *\n * NOTE: The resultant quaternion is not normalized, so you should be sure\n * to renormalize the quaternion yourself where necessary.\n *\n * @param {quat} out the receiving quaternion\n * @param {mat3} m rotation matrix\n * @returns {quat} out\n * @function\n */\nquat.fromMat3 = function(out, m) {\n // Algorithm in Ken Shoemake's article in 1987 SIGGRAPH course notes\n // article \"Quaternion Calculus and Fast Animation\".\n var fTrace = m[0] + m[4] + m[8];\n var fRoot;\n\n if ( fTrace > 0.0 ) {\n // |w| > 1/2, may as well choose w > 1/2\n fRoot = Math.sqrt(fTrace + 1.0); // 2w\n out[3] = 0.5 * fRoot;\n fRoot = 0.5/fRoot; // 1/(4w)\n out[0] = (m[5]-m[7])*fRoot;\n out[1] = (m[6]-m[2])*fRoot;\n out[2] = (m[1]-m[3])*fRoot;\n } else {\n // |w| <= 1/2\n var i = 0;\n if ( m[4] > m[0] )\n i = 1;\n if ( m[8] > m[i*3+i] )\n i = 2;\n var j = (i+1)%3;\n var k = (i+2)%3;\n \n fRoot = Math.sqrt(m[i*3+i]-m[j*3+j]-m[k*3+k] + 1.0);\n out[i] = 0.5 * fRoot;\n fRoot = 0.5 / fRoot;\n out[3] = (m[j*3+k] - m[k*3+j]) * fRoot;\n out[j] = (m[j*3+i] + m[i*3+j]) * fRoot;\n out[k] = (m[k*3+i] + m[i*3+k]) * fRoot;\n }\n \n return out;\n};\n\n/**\n * Returns a string representation of a quatenion\n *\n * @param {quat} vec vector to represent as a string\n * @returns {String} string representation of the vector\n */\nquat.str = function (a) {\n return 'quat(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' + a[3] + ')';\n};\n\nmodule.exports = quat;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/gl-matrix/src/gl-matrix/quat.js\n ** module id = 15\n ** module chunks = 0\n **/","/* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV.\n\nPermission is hereby granted, free of charge, to any person obtaining a copy\nof this software and associated documentation files (the \"Software\"), to deal\nin the Software without restriction, including without limitation the rights\nto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\ncopies of the Software, and to permit persons to whom the Software is\nfurnished to do so, subject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in\nall copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\nFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\nAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\nLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\nOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\nTHE SOFTWARE. */\n\nvar glMatrix = require(\"./common.js\");\n\n/**\n * @class 3 Dimensional Vector\n * @name vec3\n */\nvar vec3 = {};\n\n/**\n * Creates a new, empty vec3\n *\n * @returns {vec3} a new 3D vector\n */\nvec3.create = function() {\n var out = new glMatrix.ARRAY_TYPE(3);\n out[0] = 0;\n out[1] = 0;\n out[2] = 0;\n return out;\n};\n\n/**\n * Creates a new vec3 initialized with values from an existing vector\n *\n * @param {vec3} a vector to clone\n * @returns {vec3} a new 3D vector\n */\nvec3.clone = function(a) {\n var out = new glMatrix.ARRAY_TYPE(3);\n out[0] = a[0];\n out[1] = a[1];\n out[2] = a[2];\n return out;\n};\n\n/**\n * Creates a new vec3 initialized with the given values\n *\n * @param {Number} x X component\n * @param {Number} y Y component\n * @param {Number} z Z component\n * @returns {vec3} a new 3D vector\n */\nvec3.fromValues = function(x, y, z) {\n var out = new glMatrix.ARRAY_TYPE(3);\n out[0] = x;\n out[1] = y;\n out[2] = z;\n return out;\n};\n\n/**\n * Copy the values from one vec3 to another\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the source vector\n * @returns {vec3} out\n */\nvec3.copy = function(out, a) {\n out[0] = a[0];\n out[1] = a[1];\n out[2] = a[2];\n return out;\n};\n\n/**\n * Set the components of a vec3 to the given values\n *\n * @param {vec3} out the receiving vector\n * @param {Number} x X component\n * @param {Number} y Y component\n * @param {Number} z Z component\n * @returns {vec3} out\n */\nvec3.set = function(out, x, y, z) {\n out[0] = x;\n out[1] = y;\n out[2] = z;\n return out;\n};\n\n/**\n * Adds two vec3's\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @returns {vec3} out\n */\nvec3.add = function(out, a, b) {\n out[0] = a[0] + b[0];\n out[1] = a[1] + b[1];\n out[2] = a[2] + b[2];\n return out;\n};\n\n/**\n * Subtracts vector b from vector a\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @returns {vec3} out\n */\nvec3.subtract = function(out, a, b) {\n out[0] = a[0] - b[0];\n out[1] = a[1] - b[1];\n out[2] = a[2] - b[2];\n return out;\n};\n\n/**\n * Alias for {@link vec3.subtract}\n * @function\n */\nvec3.sub = vec3.subtract;\n\n/**\n * Multiplies two vec3's\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @returns {vec3} out\n */\nvec3.multiply = function(out, a, b) {\n out[0] = a[0] * b[0];\n out[1] = a[1] * b[1];\n out[2] = a[2] * b[2];\n return out;\n};\n\n/**\n * Alias for {@link vec3.multiply}\n * @function\n */\nvec3.mul = vec3.multiply;\n\n/**\n * Divides two vec3's\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @returns {vec3} out\n */\nvec3.divide = function(out, a, b) {\n out[0] = a[0] / b[0];\n out[1] = a[1] / b[1];\n out[2] = a[2] / b[2];\n return out;\n};\n\n/**\n * Alias for {@link vec3.divide}\n * @function\n */\nvec3.div = vec3.divide;\n\n/**\n * Returns the minimum of two vec3's\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @returns {vec3} out\n */\nvec3.min = function(out, a, b) {\n out[0] = Math.min(a[0], b[0]);\n out[1] = Math.min(a[1], b[1]);\n out[2] = Math.min(a[2], b[2]);\n return out;\n};\n\n/**\n * Returns the maximum of two vec3's\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @returns {vec3} out\n */\nvec3.max = function(out, a, b) {\n out[0] = Math.max(a[0], b[0]);\n out[1] = Math.max(a[1], b[1]);\n out[2] = Math.max(a[2], b[2]);\n return out;\n};\n\n/**\n * Scales a vec3 by a scalar number\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the vector to scale\n * @param {Number} b amount to scale the vector by\n * @returns {vec3} out\n */\nvec3.scale = function(out, a, b) {\n out[0] = a[0] * b;\n out[1] = a[1] * b;\n out[2] = a[2] * b;\n return out;\n};\n\n/**\n * Adds two vec3's after scaling the second operand by a scalar value\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @param {Number} scale the amount to scale b by before adding\n * @returns {vec3} out\n */\nvec3.scaleAndAdd = function(out, a, b, scale) {\n out[0] = a[0] + (b[0] * scale);\n out[1] = a[1] + (b[1] * scale);\n out[2] = a[2] + (b[2] * scale);\n return out;\n};\n\n/**\n * Calculates the euclidian distance between two vec3's\n *\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @returns {Number} distance between a and b\n */\nvec3.distance = function(a, b) {\n var x = b[0] - a[0],\n y = b[1] - a[1],\n z = b[2] - a[2];\n return Math.sqrt(x*x + y*y + z*z);\n};\n\n/**\n * Alias for {@link vec3.distance}\n * @function\n */\nvec3.dist = vec3.distance;\n\n/**\n * Calculates the squared euclidian distance between two vec3's\n *\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @returns {Number} squared distance between a and b\n */\nvec3.squaredDistance = function(a, b) {\n var x = b[0] - a[0],\n y = b[1] - a[1],\n z = b[2] - a[2];\n return x*x + y*y + z*z;\n};\n\n/**\n * Alias for {@link vec3.squaredDistance}\n * @function\n */\nvec3.sqrDist = vec3.squaredDistance;\n\n/**\n * Calculates the length of a vec3\n *\n * @param {vec3} a vector to calculate length of\n * @returns {Number} length of a\n */\nvec3.length = function (a) {\n var x = a[0],\n y = a[1],\n z = a[2];\n return Math.sqrt(x*x + y*y + z*z);\n};\n\n/**\n * Alias for {@link vec3.length}\n * @function\n */\nvec3.len = vec3.length;\n\n/**\n * Calculates the squared length of a vec3\n *\n * @param {vec3} a vector to calculate squared length of\n * @returns {Number} squared length of a\n */\nvec3.squaredLength = function (a) {\n var x = a[0],\n y = a[1],\n z = a[2];\n return x*x + y*y + z*z;\n};\n\n/**\n * Alias for {@link vec3.squaredLength}\n * @function\n */\nvec3.sqrLen = vec3.squaredLength;\n\n/**\n * Negates the components of a vec3\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a vector to negate\n * @returns {vec3} out\n */\nvec3.negate = function(out, a) {\n out[0] = -a[0];\n out[1] = -a[1];\n out[2] = -a[2];\n return out;\n};\n\n/**\n * Returns the inverse of the components of a vec3\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a vector to invert\n * @returns {vec3} out\n */\nvec3.inverse = function(out, a) {\n out[0] = 1.0 / a[0];\n out[1] = 1.0 / a[1];\n out[2] = 1.0 / a[2];\n return out;\n};\n\n/**\n * Normalize a vec3\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a vector to normalize\n * @returns {vec3} out\n */\nvec3.normalize = function(out, a) {\n var x = a[0],\n y = a[1],\n z = a[2];\n var len = x*x + y*y + z*z;\n if (len > 0) {\n //TODO: evaluate use of glm_invsqrt here?\n len = 1 / Math.sqrt(len);\n out[0] = a[0] * len;\n out[1] = a[1] * len;\n out[2] = a[2] * len;\n }\n return out;\n};\n\n/**\n * Calculates the dot product of two vec3's\n *\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @returns {Number} dot product of a and b\n */\nvec3.dot = function (a, b) {\n return a[0] * b[0] + a[1] * b[1] + a[2] * b[2];\n};\n\n/**\n * Computes the cross product of two vec3's\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @returns {vec3} out\n */\nvec3.cross = function(out, a, b) {\n var ax = a[0], ay = a[1], az = a[2],\n bx = b[0], by = b[1], bz = b[2];\n\n out[0] = ay * bz - az * by;\n out[1] = az * bx - ax * bz;\n out[2] = ax * by - ay * bx;\n return out;\n};\n\n/**\n * Performs a linear interpolation between two vec3's\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @param {Number} t interpolation amount between the two inputs\n * @returns {vec3} out\n */\nvec3.lerp = function (out, a, b, t) {\n var ax = a[0],\n ay = a[1],\n az = a[2];\n out[0] = ax + t * (b[0] - ax);\n out[1] = ay + t * (b[1] - ay);\n out[2] = az + t * (b[2] - az);\n return out;\n};\n\n/**\n * Performs a hermite interpolation with two control points\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @param {vec3} c the third operand\n * @param {vec3} d the fourth operand\n * @param {Number} t interpolation amount between the two inputs\n * @returns {vec3} out\n */\nvec3.hermite = function (out, a, b, c, d, t) {\n var factorTimes2 = t * t,\n factor1 = factorTimes2 * (2 * t - 3) + 1,\n factor2 = factorTimes2 * (t - 2) + t,\n factor3 = factorTimes2 * (t - 1),\n factor4 = factorTimes2 * (3 - 2 * t);\n \n out[0] = a[0] * factor1 + b[0] * factor2 + c[0] * factor3 + d[0] * factor4;\n out[1] = a[1] * factor1 + b[1] * factor2 + c[1] * factor3 + d[1] * factor4;\n out[2] = a[2] * factor1 + b[2] * factor2 + c[2] * factor3 + d[2] * factor4;\n \n return out;\n};\n\n/**\n * Performs a bezier interpolation with two control points\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @param {vec3} c the third operand\n * @param {vec3} d the fourth operand\n * @param {Number} t interpolation amount between the two inputs\n * @returns {vec3} out\n */\nvec3.bezier = function (out, a, b, c, d, t) {\n var inverseFactor = 1 - t,\n inverseFactorTimesTwo = inverseFactor * inverseFactor,\n factorTimes2 = t * t,\n factor1 = inverseFactorTimesTwo * inverseFactor,\n factor2 = 3 * t * inverseFactorTimesTwo,\n factor3 = 3 * factorTimes2 * inverseFactor,\n factor4 = factorTimes2 * t;\n \n out[0] = a[0] * factor1 + b[0] * factor2 + c[0] * factor3 + d[0] * factor4;\n out[1] = a[1] * factor1 + b[1] * factor2 + c[1] * factor3 + d[1] * factor4;\n out[2] = a[2] * factor1 + b[2] * factor2 + c[2] * factor3 + d[2] * factor4;\n \n return out;\n};\n\n/**\n * Generates a random vector with the given scale\n *\n * @param {vec3} out the receiving vector\n * @param {Number} [scale] Length of the resulting vector. If ommitted, a unit vector will be returned\n * @returns {vec3} out\n */\nvec3.random = function (out, scale) {\n scale = scale || 1.0;\n\n var r = glMatrix.RANDOM() * 2.0 * Math.PI;\n var z = (glMatrix.RANDOM() * 2.0) - 1.0;\n var zScale = Math.sqrt(1.0-z*z) * scale;\n\n out[0] = Math.cos(r) * zScale;\n out[1] = Math.sin(r) * zScale;\n out[2] = z * scale;\n return out;\n};\n\n/**\n * Transforms the vec3 with a mat4.\n * 4th vector component is implicitly '1'\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the vector to transform\n * @param {mat4} m matrix to transform with\n * @returns {vec3} out\n */\nvec3.transformMat4 = function(out, a, m) {\n var x = a[0], y = a[1], z = a[2],\n w = m[3] * x + m[7] * y + m[11] * z + m[15];\n w = w || 1.0;\n out[0] = (m[0] * x + m[4] * y + m[8] * z + m[12]) / w;\n out[1] = (m[1] * x + m[5] * y + m[9] * z + m[13]) / w;\n out[2] = (m[2] * x + m[6] * y + m[10] * z + m[14]) / w;\n return out;\n};\n\n/**\n * Transforms the vec3 with a mat3.\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the vector to transform\n * @param {mat4} m the 3x3 matrix to transform with\n * @returns {vec3} out\n */\nvec3.transformMat3 = function(out, a, m) {\n var x = a[0], y = a[1], z = a[2];\n out[0] = x * m[0] + y * m[3] + z * m[6];\n out[1] = x * m[1] + y * m[4] + z * m[7];\n out[2] = x * m[2] + y * m[5] + z * m[8];\n return out;\n};\n\n/**\n * Transforms the vec3 with a quat\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the vector to transform\n * @param {quat} q quaternion to transform with\n * @returns {vec3} out\n */\nvec3.transformQuat = function(out, a, q) {\n // benchmarks: http://jsperf.com/quaternion-transform-vec3-implementations\n\n var x = a[0], y = a[1], z = a[2],\n qx = q[0], qy = q[1], qz = q[2], qw = q[3],\n\n // calculate quat * vec\n ix = qw * x + qy * z - qz * y,\n iy = qw * y + qz * x - qx * z,\n iz = qw * z + qx * y - qy * x,\n iw = -qx * x - qy * y - qz * z;\n\n // calculate result * inverse quat\n out[0] = ix * qw + iw * -qx + iy * -qz - iz * -qy;\n out[1] = iy * qw + iw * -qy + iz * -qx - ix * -qz;\n out[2] = iz * qw + iw * -qz + ix * -qy - iy * -qx;\n return out;\n};\n\n/**\n * Rotate a 3D vector around the x-axis\n * @param {vec3} out The receiving vec3\n * @param {vec3} a The vec3 point to rotate\n * @param {vec3} b The origin of the rotation\n * @param {Number} c The angle of rotation\n * @returns {vec3} out\n */\nvec3.rotateX = function(out, a, b, c){\n var p = [], r=[];\n\t //Translate point to the origin\n\t p[0] = a[0] - b[0];\n\t p[1] = a[1] - b[1];\n \tp[2] = a[2] - b[2];\n\n\t //perform rotation\n\t r[0] = p[0];\n\t r[1] = p[1]*Math.cos(c) - p[2]*Math.sin(c);\n\t r[2] = p[1]*Math.sin(c) + p[2]*Math.cos(c);\n\n\t //translate to correct position\n\t out[0] = r[0] + b[0];\n\t out[1] = r[1] + b[1];\n\t out[2] = r[2] + b[2];\n\n \treturn out;\n};\n\n/**\n * Rotate a 3D vector around the y-axis\n * @param {vec3} out The receiving vec3\n * @param {vec3} a The vec3 point to rotate\n * @param {vec3} b The origin of the rotation\n * @param {Number} c The angle of rotation\n * @returns {vec3} out\n */\nvec3.rotateY = function(out, a, b, c){\n \tvar p = [], r=[];\n \t//Translate point to the origin\n \tp[0] = a[0] - b[0];\n \tp[1] = a[1] - b[1];\n \tp[2] = a[2] - b[2];\n \n \t//perform rotation\n \tr[0] = p[2]*Math.sin(c) + p[0]*Math.cos(c);\n \tr[1] = p[1];\n \tr[2] = p[2]*Math.cos(c) - p[0]*Math.sin(c);\n \n \t//translate to correct position\n \tout[0] = r[0] + b[0];\n \tout[1] = r[1] + b[1];\n \tout[2] = r[2] + b[2];\n \n \treturn out;\n};\n\n/**\n * Rotate a 3D vector around the z-axis\n * @param {vec3} out The receiving vec3\n * @param {vec3} a The vec3 point to rotate\n * @param {vec3} b The origin of the rotation\n * @param {Number} c The angle of rotation\n * @returns {vec3} out\n */\nvec3.rotateZ = function(out, a, b, c){\n \tvar p = [], r=[];\n \t//Translate point to the origin\n \tp[0] = a[0] - b[0];\n \tp[1] = a[1] - b[1];\n \tp[2] = a[2] - b[2];\n \n \t//perform rotation\n \tr[0] = p[0]*Math.cos(c) - p[1]*Math.sin(c);\n \tr[1] = p[0]*Math.sin(c) + p[1]*Math.cos(c);\n \tr[2] = p[2];\n \n \t//translate to correct position\n \tout[0] = r[0] + b[0];\n \tout[1] = r[1] + b[1];\n \tout[2] = r[2] + b[2];\n \n \treturn out;\n};\n\n/**\n * Perform some operation over an array of vec3s.\n *\n * @param {Array} a the array of vectors to iterate over\n * @param {Number} stride Number of elements between the start of each vec3. If 0 assumes tightly packed\n * @param {Number} offset Number of elements to skip at the beginning of the array\n * @param {Number} count Number of vec3s to iterate over. If 0 iterates over entire array\n * @param {Function} fn Function to call for each vector in the array\n * @param {Object} [arg] additional argument to pass to fn\n * @returns {Array} a\n * @function\n */\nvec3.forEach = (function() {\n var vec = vec3.create();\n\n return function(a, stride, offset, count, fn, arg) {\n var i, l;\n if(!stride) {\n stride = 3;\n }\n\n if(!offset) {\n offset = 0;\n }\n \n if(count) {\n l = Math.min((count * stride) + offset, a.length);\n } else {\n l = a.length;\n }\n\n for(i = offset; i < l; i += stride) {\n vec[0] = a[i]; vec[1] = a[i+1]; vec[2] = a[i+2];\n fn(vec, vec, arg);\n a[i] = vec[0]; a[i+1] = vec[1]; a[i+2] = vec[2];\n }\n \n return a;\n };\n})();\n\n/**\n * Get the angle between two 3D vectors\n * @param {vec3} a The first operand\n * @param {vec3} b The second operand\n * @returns {Number} The angle in radians\n */\nvec3.angle = function(a, b) {\n \n var tempA = vec3.fromValues(a[0], a[1], a[2]);\n var tempB = vec3.fromValues(b[0], b[1], b[2]);\n \n vec3.normalize(tempA, tempA);\n vec3.normalize(tempB, tempB);\n \n var cosine = vec3.dot(tempA, tempB);\n\n if(cosine > 1.0){\n return 0;\n } else {\n return Math.acos(cosine);\n } \n};\n\n/**\n * Returns a string representation of a vector\n *\n * @param {vec3} vec vector to represent as a string\n * @returns {String} string representation of the vector\n */\nvec3.str = function (a) {\n return 'vec3(' + a[0] + ', ' + a[1] + ', ' + a[2] + ')';\n};\n\nmodule.exports = vec3;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/gl-matrix/src/gl-matrix/vec3.js\n ** module id = 16\n ** module chunks = 0\n **/","/* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV.\n\nPermission is hereby granted, free of charge, to any person obtaining a copy\nof this software and associated documentation files (the \"Software\"), to deal\nin the Software without restriction, including without limitation the rights\nto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\ncopies of the Software, and to permit persons to whom the Software is\nfurnished to do so, subject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in\nall copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\nFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\nAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\nLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\nOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\nTHE SOFTWARE. */\n\nvar glMatrix = require(\"./common.js\");\n\n/**\n * @class 4 Dimensional Vector\n * @name vec4\n */\nvar vec4 = {};\n\n/**\n * Creates a new, empty vec4\n *\n * @returns {vec4} a new 4D vector\n */\nvec4.create = function() {\n var out = new glMatrix.ARRAY_TYPE(4);\n out[0] = 0;\n out[1] = 0;\n out[2] = 0;\n out[3] = 0;\n return out;\n};\n\n/**\n * Creates a new vec4 initialized with values from an existing vector\n *\n * @param {vec4} a vector to clone\n * @returns {vec4} a new 4D vector\n */\nvec4.clone = function(a) {\n var out = new glMatrix.ARRAY_TYPE(4);\n out[0] = a[0];\n out[1] = a[1];\n out[2] = a[2];\n out[3] = a[3];\n return out;\n};\n\n/**\n * Creates a new vec4 initialized with the given values\n *\n * @param {Number} x X component\n * @param {Number} y Y component\n * @param {Number} z Z component\n * @param {Number} w W component\n * @returns {vec4} a new 4D vector\n */\nvec4.fromValues = function(x, y, z, w) {\n var out = new glMatrix.ARRAY_TYPE(4);\n out[0] = x;\n out[1] = y;\n out[2] = z;\n out[3] = w;\n return out;\n};\n\n/**\n * Copy the values from one vec4 to another\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a the source vector\n * @returns {vec4} out\n */\nvec4.copy = function(out, a) {\n out[0] = a[0];\n out[1] = a[1];\n out[2] = a[2];\n out[3] = a[3];\n return out;\n};\n\n/**\n * Set the components of a vec4 to the given values\n *\n * @param {vec4} out the receiving vector\n * @param {Number} x X component\n * @param {Number} y Y component\n * @param {Number} z Z component\n * @param {Number} w W component\n * @returns {vec4} out\n */\nvec4.set = function(out, x, y, z, w) {\n out[0] = x;\n out[1] = y;\n out[2] = z;\n out[3] = w;\n return out;\n};\n\n/**\n * Adds two vec4's\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a the first operand\n * @param {vec4} b the second operand\n * @returns {vec4} out\n */\nvec4.add = function(out, a, b) {\n out[0] = a[0] + b[0];\n out[1] = a[1] + b[1];\n out[2] = a[2] + b[2];\n out[3] = a[3] + b[3];\n return out;\n};\n\n/**\n * Subtracts vector b from vector a\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a the first operand\n * @param {vec4} b the second operand\n * @returns {vec4} out\n */\nvec4.subtract = function(out, a, b) {\n out[0] = a[0] - b[0];\n out[1] = a[1] - b[1];\n out[2] = a[2] - b[2];\n out[3] = a[3] - b[3];\n return out;\n};\n\n/**\n * Alias for {@link vec4.subtract}\n * @function\n */\nvec4.sub = vec4.subtract;\n\n/**\n * Multiplies two vec4's\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a the first operand\n * @param {vec4} b the second operand\n * @returns {vec4} out\n */\nvec4.multiply = function(out, a, b) {\n out[0] = a[0] * b[0];\n out[1] = a[1] * b[1];\n out[2] = a[2] * b[2];\n out[3] = a[3] * b[3];\n return out;\n};\n\n/**\n * Alias for {@link vec4.multiply}\n * @function\n */\nvec4.mul = vec4.multiply;\n\n/**\n * Divides two vec4's\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a the first operand\n * @param {vec4} b the second operand\n * @returns {vec4} out\n */\nvec4.divide = function(out, a, b) {\n out[0] = a[0] / b[0];\n out[1] = a[1] / b[1];\n out[2] = a[2] / b[2];\n out[3] = a[3] / b[3];\n return out;\n};\n\n/**\n * Alias for {@link vec4.divide}\n * @function\n */\nvec4.div = vec4.divide;\n\n/**\n * Returns the minimum of two vec4's\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a the first operand\n * @param {vec4} b the second operand\n * @returns {vec4} out\n */\nvec4.min = function(out, a, b) {\n out[0] = Math.min(a[0], b[0]);\n out[1] = Math.min(a[1], b[1]);\n out[2] = Math.min(a[2], b[2]);\n out[3] = Math.min(a[3], b[3]);\n return out;\n};\n\n/**\n * Returns the maximum of two vec4's\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a the first operand\n * @param {vec4} b the second operand\n * @returns {vec4} out\n */\nvec4.max = function(out, a, b) {\n out[0] = Math.max(a[0], b[0]);\n out[1] = Math.max(a[1], b[1]);\n out[2] = Math.max(a[2], b[2]);\n out[3] = Math.max(a[3], b[3]);\n return out;\n};\n\n/**\n * Scales a vec4 by a scalar number\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a the vector to scale\n * @param {Number} b amount to scale the vector by\n * @returns {vec4} out\n */\nvec4.scale = function(out, a, b) {\n out[0] = a[0] * b;\n out[1] = a[1] * b;\n out[2] = a[2] * b;\n out[3] = a[3] * b;\n return out;\n};\n\n/**\n * Adds two vec4's after scaling the second operand by a scalar value\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a the first operand\n * @param {vec4} b the second operand\n * @param {Number} scale the amount to scale b by before adding\n * @returns {vec4} out\n */\nvec4.scaleAndAdd = function(out, a, b, scale) {\n out[0] = a[0] + (b[0] * scale);\n out[1] = a[1] + (b[1] * scale);\n out[2] = a[2] + (b[2] * scale);\n out[3] = a[3] + (b[3] * scale);\n return out;\n};\n\n/**\n * Calculates the euclidian distance between two vec4's\n *\n * @param {vec4} a the first operand\n * @param {vec4} b the second operand\n * @returns {Number} distance between a and b\n */\nvec4.distance = function(a, b) {\n var x = b[0] - a[0],\n y = b[1] - a[1],\n z = b[2] - a[2],\n w = b[3] - a[3];\n return Math.sqrt(x*x + y*y + z*z + w*w);\n};\n\n/**\n * Alias for {@link vec4.distance}\n * @function\n */\nvec4.dist = vec4.distance;\n\n/**\n * Calculates the squared euclidian distance between two vec4's\n *\n * @param {vec4} a the first operand\n * @param {vec4} b the second operand\n * @returns {Number} squared distance between a and b\n */\nvec4.squaredDistance = function(a, b) {\n var x = b[0] - a[0],\n y = b[1] - a[1],\n z = b[2] - a[2],\n w = b[3] - a[3];\n return x*x + y*y + z*z + w*w;\n};\n\n/**\n * Alias for {@link vec4.squaredDistance}\n * @function\n */\nvec4.sqrDist = vec4.squaredDistance;\n\n/**\n * Calculates the length of a vec4\n *\n * @param {vec4} a vector to calculate length of\n * @returns {Number} length of a\n */\nvec4.length = function (a) {\n var x = a[0],\n y = a[1],\n z = a[2],\n w = a[3];\n return Math.sqrt(x*x + y*y + z*z + w*w);\n};\n\n/**\n * Alias for {@link vec4.length}\n * @function\n */\nvec4.len = vec4.length;\n\n/**\n * Calculates the squared length of a vec4\n *\n * @param {vec4} a vector to calculate squared length of\n * @returns {Number} squared length of a\n */\nvec4.squaredLength = function (a) {\n var x = a[0],\n y = a[1],\n z = a[2],\n w = a[3];\n return x*x + y*y + z*z + w*w;\n};\n\n/**\n * Alias for {@link vec4.squaredLength}\n * @function\n */\nvec4.sqrLen = vec4.squaredLength;\n\n/**\n * Negates the components of a vec4\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a vector to negate\n * @returns {vec4} out\n */\nvec4.negate = function(out, a) {\n out[0] = -a[0];\n out[1] = -a[1];\n out[2] = -a[2];\n out[3] = -a[3];\n return out;\n};\n\n/**\n * Returns the inverse of the components of a vec4\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a vector to invert\n * @returns {vec4} out\n */\nvec4.inverse = function(out, a) {\n out[0] = 1.0 / a[0];\n out[1] = 1.0 / a[1];\n out[2] = 1.0 / a[2];\n out[3] = 1.0 / a[3];\n return out;\n};\n\n/**\n * Normalize a vec4\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a vector to normalize\n * @returns {vec4} out\n */\nvec4.normalize = function(out, a) {\n var x = a[0],\n y = a[1],\n z = a[2],\n w = a[3];\n var len = x*x + y*y + z*z + w*w;\n if (len > 0) {\n len = 1 / Math.sqrt(len);\n out[0] = x * len;\n out[1] = y * len;\n out[2] = z * len;\n out[3] = w * len;\n }\n return out;\n};\n\n/**\n * Calculates the dot product of two vec4's\n *\n * @param {vec4} a the first operand\n * @param {vec4} b the second operand\n * @returns {Number} dot product of a and b\n */\nvec4.dot = function (a, b) {\n return a[0] * b[0] + a[1] * b[1] + a[2] * b[2] + a[3] * b[3];\n};\n\n/**\n * Performs a linear interpolation between two vec4's\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a the first operand\n * @param {vec4} b the second operand\n * @param {Number} t interpolation amount between the two inputs\n * @returns {vec4} out\n */\nvec4.lerp = function (out, a, b, t) {\n var ax = a[0],\n ay = a[1],\n az = a[2],\n aw = a[3];\n out[0] = ax + t * (b[0] - ax);\n out[1] = ay + t * (b[1] - ay);\n out[2] = az + t * (b[2] - az);\n out[3] = aw + t * (b[3] - aw);\n return out;\n};\n\n/**\n * Generates a random vector with the given scale\n *\n * @param {vec4} out the receiving vector\n * @param {Number} [scale] Length of the resulting vector. If ommitted, a unit vector will be returned\n * @returns {vec4} out\n */\nvec4.random = function (out, scale) {\n scale = scale || 1.0;\n\n //TODO: This is a pretty awful way of doing this. Find something better.\n out[0] = glMatrix.RANDOM();\n out[1] = glMatrix.RANDOM();\n out[2] = glMatrix.RANDOM();\n out[3] = glMatrix.RANDOM();\n vec4.normalize(out, out);\n vec4.scale(out, out, scale);\n return out;\n};\n\n/**\n * Transforms the vec4 with a mat4.\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a the vector to transform\n * @param {mat4} m matrix to transform with\n * @returns {vec4} out\n */\nvec4.transformMat4 = function(out, a, m) {\n var x = a[0], y = a[1], z = a[2], w = a[3];\n out[0] = m[0] * x + m[4] * y + m[8] * z + m[12] * w;\n out[1] = m[1] * x + m[5] * y + m[9] * z + m[13] * w;\n out[2] = m[2] * x + m[6] * y + m[10] * z + m[14] * w;\n out[3] = m[3] * x + m[7] * y + m[11] * z + m[15] * w;\n return out;\n};\n\n/**\n * Transforms the vec4 with a quat\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a the vector to transform\n * @param {quat} q quaternion to transform with\n * @returns {vec4} out\n */\nvec4.transformQuat = function(out, a, q) {\n var x = a[0], y = a[1], z = a[2],\n qx = q[0], qy = q[1], qz = q[2], qw = q[3],\n\n // calculate quat * vec\n ix = qw * x + qy * z - qz * y,\n iy = qw * y + qz * x - qx * z,\n iz = qw * z + qx * y - qy * x,\n iw = -qx * x - qy * y - qz * z;\n\n // calculate result * inverse quat\n out[0] = ix * qw + iw * -qx + iy * -qz - iz * -qy;\n out[1] = iy * qw + iw * -qy + iz * -qx - ix * -qz;\n out[2] = iz * qw + iw * -qz + ix * -qy - iy * -qx;\n out[3] = a[3];\n return out;\n};\n\n/**\n * Perform some operation over an array of vec4s.\n *\n * @param {Array} a the array of vectors to iterate over\n * @param {Number} stride Number of elements between the start of each vec4. If 0 assumes tightly packed\n * @param {Number} offset Number of elements to skip at the beginning of the array\n * @param {Number} count Number of vec4s to iterate over. If 0 iterates over entire array\n * @param {Function} fn Function to call for each vector in the array\n * @param {Object} [arg] additional argument to pass to fn\n * @returns {Array} a\n * @function\n */\nvec4.forEach = (function() {\n var vec = vec4.create();\n\n return function(a, stride, offset, count, fn, arg) {\n var i, l;\n if(!stride) {\n stride = 4;\n }\n\n if(!offset) {\n offset = 0;\n }\n \n if(count) {\n l = Math.min((count * stride) + offset, a.length);\n } else {\n l = a.length;\n }\n\n for(i = offset; i < l; i += stride) {\n vec[0] = a[i]; vec[1] = a[i+1]; vec[2] = a[i+2]; vec[3] = a[i+3];\n fn(vec, vec, arg);\n a[i] = vec[0]; a[i+1] = vec[1]; a[i+2] = vec[2]; a[i+3] = vec[3];\n }\n \n return a;\n };\n})();\n\n/**\n * Returns a string representation of a vector\n *\n * @param {vec4} vec vector to represent as a string\n * @returns {String} string representation of the vector\n */\nvec4.str = function (a) {\n return 'vec4(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' + a[3] + ')';\n};\n\nmodule.exports = vec4;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/gl-matrix/src/gl-matrix/vec4.js\n ** module id = 17\n ** module chunks = 0\n **/","/* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV.\n\nPermission is hereby granted, free of charge, to any person obtaining a copy\nof this software and associated documentation files (the \"Software\"), to deal\nin the Software without restriction, including without limitation the rights\nto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\ncopies of the Software, and to permit persons to whom the Software is\nfurnished to do so, subject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in\nall copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\nFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\nAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\nLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\nOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\nTHE SOFTWARE. */\n\nvar glMatrix = require(\"./common.js\");\n\n/**\n * @class 2 Dimensional Vector\n * @name vec2\n */\nvar vec2 = {};\n\n/**\n * Creates a new, empty vec2\n *\n * @returns {vec2} a new 2D vector\n */\nvec2.create = function() {\n var out = new glMatrix.ARRAY_TYPE(2);\n out[0] = 0;\n out[1] = 0;\n return out;\n};\n\n/**\n * Creates a new vec2 initialized with values from an existing vector\n *\n * @param {vec2} a vector to clone\n * @returns {vec2} a new 2D vector\n */\nvec2.clone = function(a) {\n var out = new glMatrix.ARRAY_TYPE(2);\n out[0] = a[0];\n out[1] = a[1];\n return out;\n};\n\n/**\n * Creates a new vec2 initialized with the given values\n *\n * @param {Number} x X component\n * @param {Number} y Y component\n * @returns {vec2} a new 2D vector\n */\nvec2.fromValues = function(x, y) {\n var out = new glMatrix.ARRAY_TYPE(2);\n out[0] = x;\n out[1] = y;\n return out;\n};\n\n/**\n * Copy the values from one vec2 to another\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the source vector\n * @returns {vec2} out\n */\nvec2.copy = function(out, a) {\n out[0] = a[0];\n out[1] = a[1];\n return out;\n};\n\n/**\n * Set the components of a vec2 to the given values\n *\n * @param {vec2} out the receiving vector\n * @param {Number} x X component\n * @param {Number} y Y component\n * @returns {vec2} out\n */\nvec2.set = function(out, x, y) {\n out[0] = x;\n out[1] = y;\n return out;\n};\n\n/**\n * Adds two vec2's\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the first operand\n * @param {vec2} b the second operand\n * @returns {vec2} out\n */\nvec2.add = function(out, a, b) {\n out[0] = a[0] + b[0];\n out[1] = a[1] + b[1];\n return out;\n};\n\n/**\n * Subtracts vector b from vector a\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the first operand\n * @param {vec2} b the second operand\n * @returns {vec2} out\n */\nvec2.subtract = function(out, a, b) {\n out[0] = a[0] - b[0];\n out[1] = a[1] - b[1];\n return out;\n};\n\n/**\n * Alias for {@link vec2.subtract}\n * @function\n */\nvec2.sub = vec2.subtract;\n\n/**\n * Multiplies two vec2's\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the first operand\n * @param {vec2} b the second operand\n * @returns {vec2} out\n */\nvec2.multiply = function(out, a, b) {\n out[0] = a[0] * b[0];\n out[1] = a[1] * b[1];\n return out;\n};\n\n/**\n * Alias for {@link vec2.multiply}\n * @function\n */\nvec2.mul = vec2.multiply;\n\n/**\n * Divides two vec2's\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the first operand\n * @param {vec2} b the second operand\n * @returns {vec2} out\n */\nvec2.divide = function(out, a, b) {\n out[0] = a[0] / b[0];\n out[1] = a[1] / b[1];\n return out;\n};\n\n/**\n * Alias for {@link vec2.divide}\n * @function\n */\nvec2.div = vec2.divide;\n\n/**\n * Returns the minimum of two vec2's\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the first operand\n * @param {vec2} b the second operand\n * @returns {vec2} out\n */\nvec2.min = function(out, a, b) {\n out[0] = Math.min(a[0], b[0]);\n out[1] = Math.min(a[1], b[1]);\n return out;\n};\n\n/**\n * Returns the maximum of two vec2's\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the first operand\n * @param {vec2} b the second operand\n * @returns {vec2} out\n */\nvec2.max = function(out, a, b) {\n out[0] = Math.max(a[0], b[0]);\n out[1] = Math.max(a[1], b[1]);\n return out;\n};\n\n/**\n * Scales a vec2 by a scalar number\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the vector to scale\n * @param {Number} b amount to scale the vector by\n * @returns {vec2} out\n */\nvec2.scale = function(out, a, b) {\n out[0] = a[0] * b;\n out[1] = a[1] * b;\n return out;\n};\n\n/**\n * Adds two vec2's after scaling the second operand by a scalar value\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the first operand\n * @param {vec2} b the second operand\n * @param {Number} scale the amount to scale b by before adding\n * @returns {vec2} out\n */\nvec2.scaleAndAdd = function(out, a, b, scale) {\n out[0] = a[0] + (b[0] * scale);\n out[1] = a[1] + (b[1] * scale);\n return out;\n};\n\n/**\n * Calculates the euclidian distance between two vec2's\n *\n * @param {vec2} a the first operand\n * @param {vec2} b the second operand\n * @returns {Number} distance between a and b\n */\nvec2.distance = function(a, b) {\n var x = b[0] - a[0],\n y = b[1] - a[1];\n return Math.sqrt(x*x + y*y);\n};\n\n/**\n * Alias for {@link vec2.distance}\n * @function\n */\nvec2.dist = vec2.distance;\n\n/**\n * Calculates the squared euclidian distance between two vec2's\n *\n * @param {vec2} a the first operand\n * @param {vec2} b the second operand\n * @returns {Number} squared distance between a and b\n */\nvec2.squaredDistance = function(a, b) {\n var x = b[0] - a[0],\n y = b[1] - a[1];\n return x*x + y*y;\n};\n\n/**\n * Alias for {@link vec2.squaredDistance}\n * @function\n */\nvec2.sqrDist = vec2.squaredDistance;\n\n/**\n * Calculates the length of a vec2\n *\n * @param {vec2} a vector to calculate length of\n * @returns {Number} length of a\n */\nvec2.length = function (a) {\n var x = a[0],\n y = a[1];\n return Math.sqrt(x*x + y*y);\n};\n\n/**\n * Alias for {@link vec2.length}\n * @function\n */\nvec2.len = vec2.length;\n\n/**\n * Calculates the squared length of a vec2\n *\n * @param {vec2} a vector to calculate squared length of\n * @returns {Number} squared length of a\n */\nvec2.squaredLength = function (a) {\n var x = a[0],\n y = a[1];\n return x*x + y*y;\n};\n\n/**\n * Alias for {@link vec2.squaredLength}\n * @function\n */\nvec2.sqrLen = vec2.squaredLength;\n\n/**\n * Negates the components of a vec2\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a vector to negate\n * @returns {vec2} out\n */\nvec2.negate = function(out, a) {\n out[0] = -a[0];\n out[1] = -a[1];\n return out;\n};\n\n/**\n * Returns the inverse of the components of a vec2\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a vector to invert\n * @returns {vec2} out\n */\nvec2.inverse = function(out, a) {\n out[0] = 1.0 / a[0];\n out[1] = 1.0 / a[1];\n return out;\n};\n\n/**\n * Normalize a vec2\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a vector to normalize\n * @returns {vec2} out\n */\nvec2.normalize = function(out, a) {\n var x = a[0],\n y = a[1];\n var len = x*x + y*y;\n if (len > 0) {\n //TODO: evaluate use of glm_invsqrt here?\n len = 1 / Math.sqrt(len);\n out[0] = a[0] * len;\n out[1] = a[1] * len;\n }\n return out;\n};\n\n/**\n * Calculates the dot product of two vec2's\n *\n * @param {vec2} a the first operand\n * @param {vec2} b the second operand\n * @returns {Number} dot product of a and b\n */\nvec2.dot = function (a, b) {\n return a[0] * b[0] + a[1] * b[1];\n};\n\n/**\n * Computes the cross product of two vec2's\n * Note that the cross product must by definition produce a 3D vector\n *\n * @param {vec3} out the receiving vector\n * @param {vec2} a the first operand\n * @param {vec2} b the second operand\n * @returns {vec3} out\n */\nvec2.cross = function(out, a, b) {\n var z = a[0] * b[1] - a[1] * b[0];\n out[0] = out[1] = 0;\n out[2] = z;\n return out;\n};\n\n/**\n * Performs a linear interpolation between two vec2's\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the first operand\n * @param {vec2} b the second operand\n * @param {Number} t interpolation amount between the two inputs\n * @returns {vec2} out\n */\nvec2.lerp = function (out, a, b, t) {\n var ax = a[0],\n ay = a[1];\n out[0] = ax + t * (b[0] - ax);\n out[1] = ay + t * (b[1] - ay);\n return out;\n};\n\n/**\n * Generates a random vector with the given scale\n *\n * @param {vec2} out the receiving vector\n * @param {Number} [scale] Length of the resulting vector. If ommitted, a unit vector will be returned\n * @returns {vec2} out\n */\nvec2.random = function (out, scale) {\n scale = scale || 1.0;\n var r = glMatrix.RANDOM() * 2.0 * Math.PI;\n out[0] = Math.cos(r) * scale;\n out[1] = Math.sin(r) * scale;\n return out;\n};\n\n/**\n * Transforms the vec2 with a mat2\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the vector to transform\n * @param {mat2} m matrix to transform with\n * @returns {vec2} out\n */\nvec2.transformMat2 = function(out, a, m) {\n var x = a[0],\n y = a[1];\n out[0] = m[0] * x + m[2] * y;\n out[1] = m[1] * x + m[3] * y;\n return out;\n};\n\n/**\n * Transforms the vec2 with a mat2d\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the vector to transform\n * @param {mat2d} m matrix to transform with\n * @returns {vec2} out\n */\nvec2.transformMat2d = function(out, a, m) {\n var x = a[0],\n y = a[1];\n out[0] = m[0] * x + m[2] * y + m[4];\n out[1] = m[1] * x + m[3] * y + m[5];\n return out;\n};\n\n/**\n * Transforms the vec2 with a mat3\n * 3rd vector component is implicitly '1'\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the vector to transform\n * @param {mat3} m matrix to transform with\n * @returns {vec2} out\n */\nvec2.transformMat3 = function(out, a, m) {\n var x = a[0],\n y = a[1];\n out[0] = m[0] * x + m[3] * y + m[6];\n out[1] = m[1] * x + m[4] * y + m[7];\n return out;\n};\n\n/**\n * Transforms the vec2 with a mat4\n * 3rd vector component is implicitly '0'\n * 4th vector component is implicitly '1'\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the vector to transform\n * @param {mat4} m matrix to transform with\n * @returns {vec2} out\n */\nvec2.transformMat4 = function(out, a, m) {\n var x = a[0], \n y = a[1];\n out[0] = m[0] * x + m[4] * y + m[12];\n out[1] = m[1] * x + m[5] * y + m[13];\n return out;\n};\n\n/**\n * Perform some operation over an array of vec2s.\n *\n * @param {Array} a the array of vectors to iterate over\n * @param {Number} stride Number of elements between the start of each vec2. If 0 assumes tightly packed\n * @param {Number} offset Number of elements to skip at the beginning of the array\n * @param {Number} count Number of vec2s to iterate over. If 0 iterates over entire array\n * @param {Function} fn Function to call for each vector in the array\n * @param {Object} [arg] additional argument to pass to fn\n * @returns {Array} a\n * @function\n */\nvec2.forEach = (function() {\n var vec = vec2.create();\n\n return function(a, stride, offset, count, fn, arg) {\n var i, l;\n if(!stride) {\n stride = 2;\n }\n\n if(!offset) {\n offset = 0;\n }\n \n if(count) {\n l = Math.min((count * stride) + offset, a.length);\n } else {\n l = a.length;\n }\n\n for(i = offset; i < l; i += stride) {\n vec[0] = a[i]; vec[1] = a[i+1];\n fn(vec, vec, arg);\n a[i] = vec[0]; a[i+1] = vec[1];\n }\n \n return a;\n };\n})();\n\n/**\n * Returns a string representation of a vector\n *\n * @param {vec2} vec vector to represent as a string\n * @returns {String} string representation of the vector\n */\nvec2.str = function (a) {\n return 'vec2(' + a[0] + ', ' + a[1] + ')';\n};\n\nmodule.exports = vec2;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/gl-matrix/src/gl-matrix/vec2.js\n ** module id = 18\n ** module chunks = 0\n **/","export default {\n init : function(arr, val) {\n var l = arr.length;\n while (l--) {\n arr[l] = val;\n }\n },\n\n /**\n * Shuffles the content of an array\n * @return {Array} the array itself shuffled\n */\n shuffle : function(arr) {\n var i = arr.length - 1, j, x;\n for (i; i >= 0; i--) {\n j = Math.floor(Math.random() * i);\n x = arr[i];\n arr[i] = arr[j];\n arr[j] = x;\n }\n return arr;\n },\n\n toPointList : function(arr) {\n var i, j, row = [], rows = [];\n for ( i = 0; i < arr.length; i++) {\n row = [];\n for ( j = 0; j < arr[i].length; j++) {\n row[j] = arr[i][j];\n }\n rows[i] = \"[\" + row.join(\",\") + \"]\";\n }\n return \"[\" + rows.join(\",\\r\\n\") + \"]\";\n },\n\n /**\n * returns the elements which's score is bigger than the threshold\n * @return {Array} the reduced array\n */\n threshold : function(arr, threshold, scoreFunc) {\n var i, queue = [];\n for ( i = 0; i < arr.length; i++) {\n if (scoreFunc.apply(arr, [arr[i]]) >= threshold) {\n queue.push(arr[i]);\n }\n }\n return queue;\n },\n\n maxIndex : function(arr) {\n var i, max = 0;\n for ( i = 0; i < arr.length; i++) {\n if (arr[i] > arr[max]) {\n max = i;\n }\n }\n return max;\n },\n\n max : function(arr) {\n var i, max = 0;\n for ( i = 0; i < arr.length; i++) {\n if (arr[i] > max) {\n max = arr[i];\n }\n }\n return max;\n },\n\n sum: function(arr) {\n var length = arr.length,\n sum = 0;\n\n while(length--) {\n sum += arr[length];\n }\n return sum;\n }\n};\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/array_helper.js\n **/","/* jshint undef: true, unused: true, browser:true, devel: true */\n/* global define */\n\nimport ImageWrapper from './image_wrapper';\nimport CVUtils from './cv_utils';\nimport Rasterizer from './rasterizer';\nimport Tracer from './tracer';\nimport skeletonizer from './skeletonizer';\nimport ArrayHelper from './array_helper';\nimport ImageDebug from './image_debug';\nimport glMatrix from 'gl-matrix';\n\nvar _config,\n _currentImageWrapper,\n _skelImageWrapper,\n _subImageWrapper,\n _labelImageWrapper,\n _patchGrid,\n _patchLabelGrid,\n _imageToPatchGrid,\n _binaryImageWrapper,\n _patchSize,\n _canvasContainer = {\n ctx : {\n binary : null\n },\n dom : {\n binary : null\n }\n },\n _numPatches = {x: 0, y: 0},\n _inputImageWrapper,\n _skeletonizer,\n vec2 = glMatrix.vec2,\n mat2 = glMatrix.mat2,\n self = (typeof window !== 'undefined') ? window : self;\n\nfunction initBuffers() {\n var skeletonImageData;\n\n if (_config.halfSample) {\n _currentImageWrapper = new ImageWrapper({\n x : _inputImageWrapper.size.x / 2 | 0,\n y : _inputImageWrapper.size.y / 2 | 0\n });\n } else {\n _currentImageWrapper = _inputImageWrapper;\n }\n\n _patchSize = CVUtils.calculatePatchSize(_config.patchSize, _currentImageWrapper.size);\n\n _numPatches.x = _currentImageWrapper.size.x / _patchSize.x | 0;\n _numPatches.y = _currentImageWrapper.size.y / _patchSize.y | 0;\n\n _binaryImageWrapper = new ImageWrapper(_currentImageWrapper.size, undefined, Uint8Array, false);\n\n _labelImageWrapper = new ImageWrapper(_patchSize, undefined, Array, true);\n\n skeletonImageData = new ArrayBuffer(64*1024);\n _subImageWrapper = new ImageWrapper(_patchSize, new Uint8Array(skeletonImageData, 0, _patchSize.x * _patchSize.y));\n _skelImageWrapper = new ImageWrapper(_patchSize, new Uint8Array(skeletonImageData, _patchSize.x * _patchSize.y * 3, _patchSize.x * _patchSize.y), undefined, true);\n _skeletonizer = skeletonizer(self, {\n size : _patchSize.x\n }, skeletonImageData);\n\n _imageToPatchGrid = new ImageWrapper({\n x : (_currentImageWrapper.size.x / _subImageWrapper.size.x) | 0,\n y : (_currentImageWrapper.size.y / _subImageWrapper.size.y) | 0\n }, undefined, Array, true);\n _patchGrid = new ImageWrapper(_imageToPatchGrid.size, undefined, undefined, true);\n _patchLabelGrid = new ImageWrapper(_imageToPatchGrid.size, undefined, Int32Array, true);\n}\n\nfunction initCanvas() {\n if (_config.useWorker || typeof document === 'undefined') {\n return;\n }\n _canvasContainer.dom.binary = document.createElement(\"canvas\");\n _canvasContainer.dom.binary.className = \"binaryBuffer\";\n if (_config.showCanvas === true) {\n document.querySelector(\"#debug\").appendChild(_canvasContainer.dom.binary);\n }\n _canvasContainer.ctx.binary = _canvasContainer.dom.binary.getContext(\"2d\");\n _canvasContainer.dom.binary.width = _binaryImageWrapper.size.x;\n _canvasContainer.dom.binary.height = _binaryImageWrapper.size.y;\n}\n\n/**\n * Creates a bounding box which encloses all the given patches\n * @returns {Array} The minimal bounding box\n */\nfunction boxFromPatches(patches) {\n var overAvg, i, j, patch, transMat, minx = _binaryImageWrapper.size.x, miny = _binaryImageWrapper.size.y, maxx = -_binaryImageWrapper.size.x, maxy = -_binaryImageWrapper.size.y, box, scale;\n\n // draw all patches which are to be taken into consideration\n overAvg = 0;\n for ( i = 0; i < patches.length; i++) {\n patch = patches[i];\n overAvg += patch.rad;\n if (_config.showPatches) {\n ImageDebug.drawRect(patch.pos, _subImageWrapper.size, _canvasContainer.ctx.binary, {color: \"red\"});\n }\n }\n\n overAvg /= patches.length;\n overAvg = (overAvg * 180 / Math.PI + 90) % 180 - 90;\n if (overAvg < 0) {\n overAvg += 180;\n }\n\n overAvg = (180 - overAvg) * Math.PI / 180;\n transMat = mat2.clone([Math.cos(overAvg), Math.sin(overAvg), -Math.sin(overAvg), Math.cos(overAvg)]);\n\n // iterate over patches and rotate by angle\n for ( i = 0; i < patches.length; i++) {\n patch = patches[i];\n for ( j = 0; j < 4; j++) {\n vec2.transformMat2(patch.box[j], patch.box[j], transMat);\n }\n\n if (_config.boxFromPatches.showTransformed) {\n ImageDebug.drawPath(patch.box, {x: 0, y: 1}, _canvasContainer.ctx.binary, {color: '#99ff00', lineWidth: 2});\n }\n }\n\n // find bounding box\n for ( i = 0; i < patches.length; i++) {\n patch = patches[i];\n for ( j = 0; j < 4; j++) {\n if (patch.box[j][0] < minx) {\n minx = patch.box[j][0];\n }\n if (patch.box[j][0] > maxx) {\n maxx = patch.box[j][0];\n }\n if (patch.box[j][1] < miny) {\n miny = patch.box[j][1];\n }\n if (patch.box[j][1] > maxy) {\n maxy = patch.box[j][1];\n }\n }\n }\n\n box = [[minx, miny], [maxx, miny], [maxx, maxy], [minx, maxy]];\n\n if (_config.boxFromPatches.showTransformedBox) {\n ImageDebug.drawPath(box, {x: 0, y: 1}, _canvasContainer.ctx.binary, {color: '#ff0000', lineWidth: 2});\n }\n\n scale = _config.halfSample ? 2 : 1;\n // reverse rotation;\n transMat = mat2.invert(transMat, transMat);\n for ( j = 0; j < 4; j++) {\n vec2.transformMat2(box[j], box[j], transMat);\n }\n\n if (_config.boxFromPatches.showBB) {\n ImageDebug.drawPath(box, {x: 0, y: 1}, _canvasContainer.ctx.binary, {color: '#ff0000', lineWidth: 2});\n }\n\n for ( j = 0; j < 4; j++) {\n vec2.scale(box[j], box[j], scale);\n }\n\n return box;\n}\n\n/**\n * Creates a binary image of the current image\n */\nfunction binarizeImage() {\n CVUtils.otsuThreshold(_currentImageWrapper, _binaryImageWrapper);\n _binaryImageWrapper.zeroBorder();\n if (_config.showCanvas) {\n _binaryImageWrapper.show(_canvasContainer.dom.binary, 255);\n }\n}\n\n/**\n * Iterate over the entire image\n * extract patches\n */\nfunction findPatches() {\n var i,\n j,\n x,\n y,\n moments,\n patchesFound = [],\n rasterizer,\n rasterResult,\n patch;\n for ( i = 0; i < _numPatches.x; i++) {\n for ( j = 0; j < _numPatches.y; j++) {\n\n x = _subImageWrapper.size.x * i;\n y = _subImageWrapper.size.y * j;\n\n // seperate parts\n skeletonize(x, y);\n\n // Rasterize, find individual bars\n _skelImageWrapper.zeroBorder();\n ArrayHelper.init(_labelImageWrapper.data, 0);\n rasterizer = Rasterizer.create(_skelImageWrapper, _labelImageWrapper);\n rasterResult = rasterizer.rasterize(0);\n\n if (_config.showLabels) {\n _labelImageWrapper.overlay(_canvasContainer.dom.binary, Math.floor(360 / rasterResult.count), {x : x, y : y});\n }\n\n // calculate moments from the skeletonized patch\n moments = _labelImageWrapper.moments(rasterResult.count);\n\n // extract eligible patches\n patchesFound = patchesFound.concat(describePatch(moments, [i, j], x, y));\n }\n }\n\n if (_config.showFoundPatches) {\n for ( i = 0; i < patchesFound.length; i++) {\n patch = patchesFound[i];\n ImageDebug.drawRect(patch.pos, _subImageWrapper.size, _canvasContainer.ctx.binary, {color: \"#99ff00\", lineWidth: 2});\n }\n }\n\n return patchesFound;\n}\n\n/**\n * Finds those connected areas which contain at least 6 patches\n * and returns them ordered DESC by the number of contained patches\n * @param {Number} maxLabel\n */\nfunction findBiggestConnectedAreas(maxLabel){\n var i,\n sum,\n labelHist = [],\n topLabels = [];\n\n for ( i = 0; i < maxLabel; i++) {\n labelHist.push(0);\n }\n sum = _patchLabelGrid.data.length;\n while (sum--) {\n if (_patchLabelGrid.data[sum] > 0) {\n labelHist[_patchLabelGrid.data[sum] - 1]++;\n }\n }\n\n labelHist = labelHist.map(function(val, idx) {\n return {\n val : val,\n label : idx + 1\n };\n });\n\n labelHist.sort(function(a, b) {\n return b.val - a.val;\n });\n\n // extract top areas with at least 6 patches present\n topLabels = labelHist.filter(function(el) {\n return el.val >= 5;\n });\n\n return topLabels;\n}\n\n/**\n *\n */\nfunction findBoxes(topLabels, maxLabel) {\n var i,\n j,\n sum,\n patches = [],\n patch,\n box,\n boxes = [],\n hsv = [0, 1, 1],\n rgb = [0, 0, 0];\n\n for ( i = 0; i < topLabels.length; i++) {\n sum = _patchLabelGrid.data.length;\n patches.length = 0;\n while (sum--) {\n if (_patchLabelGrid.data[sum] === topLabels[i].label) {\n patch = _imageToPatchGrid.data[sum];\n patches.push(patch);\n }\n }\n box = boxFromPatches(patches);\n if (box) {\n boxes.push(box);\n\n // draw patch-labels if requested\n if (_config.showRemainingPatchLabels) {\n for ( j = 0; j < patches.length; j++) {\n patch = patches[j];\n hsv[0] = (topLabels[i].label / (maxLabel + 1)) * 360;\n CVUtils.hsv2rgb(hsv, rgb);\n ImageDebug.drawRect(patch.pos, _subImageWrapper.size, _canvasContainer.ctx.binary, {color: \"rgb(\" + rgb.join(\",\") + \")\", lineWidth: 2});\n }\n }\n }\n }\n return boxes;\n}\n\n/**\n * Find similar moments (via cluster)\n * @param {Object} moments\n */\nfunction similarMoments(moments) {\n var clusters = CVUtils.cluster(moments, 0.90);\n var topCluster = CVUtils.topGeneric(clusters, 1, function(e) {\n return e.getPoints().length;\n });\n var points = [], result = [];\n if (topCluster.length === 1) {\n points = topCluster[0].item.getPoints();\n for (var i = 0; i < points.length; i++) {\n result.push(points[i].point);\n }\n }\n return result;\n}\n\nfunction skeletonize(x, y) {\n _binaryImageWrapper.subImageAsCopy(_subImageWrapper, CVUtils.imageRef(x, y));\n _skeletonizer.skeletonize();\n\n // Show skeleton if requested\n if (_config.showSkeleton) {\n _skelImageWrapper.overlay(_canvasContainer.dom.binary, 360, CVUtils.imageRef(x, y));\n }\n}\n\n/**\n * Extracts and describes those patches which seem to contain a barcode pattern\n * @param {Array} moments\n * @param {Object} patchPos,\n * @param {Number} x\n * @param {Number} y\n * @returns {Array} list of patches\n */\nfunction describePatch(moments, patchPos, x, y) {\n var k,\n avg,\n sum = 0,\n eligibleMoments = [],\n matchingMoments,\n patch,\n patchesFound = [],\n minComponentWeight = Math.ceil(_patchSize.x/3);\n\n if (moments.length >= 2) {\n // only collect moments which's area covers at least minComponentWeight pixels.\n for ( k = 0; k < moments.length; k++) {\n if (moments[k].m00 > minComponentWeight) {\n eligibleMoments.push(moments[k]);\n }\n }\n\n // if at least 2 moments are found which have at least minComponentWeights covered\n if (eligibleMoments.length >= 2) {\n sum = eligibleMoments.length;\n matchingMoments = similarMoments(eligibleMoments);\n avg = 0;\n // determine the similarity of the moments\n for ( k = 0; k < matchingMoments.length; k++) {\n avg += matchingMoments[k].rad;\n }\n\n // Only two of the moments are allowed not to fit into the equation\n // add the patch to the set\n if (matchingMoments.length > 1 && matchingMoments.length >= (eligibleMoments.length / 4) * 3 && matchingMoments.length > moments.length / 4) {\n avg /= matchingMoments.length;\n patch = {\n index : patchPos[1] * _numPatches.x + patchPos[0],\n pos : {\n x : x,\n y : y\n },\n box : [vec2.clone([x, y]), vec2.clone([x + _subImageWrapper.size.x, y]), vec2.clone([x + _subImageWrapper.size.x, y + _subImageWrapper.size.y]), vec2.clone([x, y + _subImageWrapper.size.y])],\n moments : matchingMoments,\n rad : avg,\n vec : vec2.clone([Math.cos(avg), Math.sin(avg)])\n };\n patchesFound.push(patch);\n }\n }\n }\n return patchesFound;\n}\n\n/**\n * finds patches which are connected and share the same orientation\n * @param {Object} patchesFound\n */\nfunction rasterizeAngularSimilarity(patchesFound) {\n var label = 0,\n threshold = 0.95,\n currIdx = 0,\n j,\n patch,\n hsv = [0, 1, 1],\n rgb = [0, 0, 0];\n\n function notYetProcessed() {\n var i;\n for ( i = 0; i < _patchLabelGrid.data.length; i++) {\n if (_patchLabelGrid.data[i] === 0 && _patchGrid.data[i] === 1) {\n return i;\n }\n }\n return _patchLabelGrid.length;\n }\n\n function trace(currentIdx) {\n var x, y, currentPatch, patch, idx, dir, current = {\n x : currentIdx % _patchLabelGrid.size.x,\n y : (currentIdx / _patchLabelGrid.size.x) | 0\n }, similarity;\n\n if (currentIdx < _patchLabelGrid.data.length) {\n currentPatch = _imageToPatchGrid.data[currentIdx];\n // assign label\n _patchLabelGrid.data[currentIdx] = label;\n for ( dir = 0; dir < Tracer.searchDirections.length; dir++) {\n y = current.y + Tracer.searchDirections[dir][0];\n x = current.x + Tracer.searchDirections[dir][1];\n idx = y * _patchLabelGrid.size.x + x;\n\n // continue if patch empty\n if (_patchGrid.data[idx] === 0) {\n _patchLabelGrid.data[idx] = Number.MAX_VALUE;\n continue;\n }\n\n patch = _imageToPatchGrid.data[idx];\n if (_patchLabelGrid.data[idx] === 0) {\n similarity = Math.abs(vec2.dot(patch.vec, currentPatch.vec));\n if (similarity > threshold) {\n trace(idx);\n }\n }\n }\n }\n }\n\n // prepare for finding the right patches\n ArrayHelper.init(_patchGrid.data, 0);\n ArrayHelper.init(_patchLabelGrid.data, 0);\n ArrayHelper.init(_imageToPatchGrid.data, null);\n\n for ( j = 0; j < patchesFound.length; j++) {\n patch = patchesFound[j];\n _imageToPatchGrid.data[patch.index] = patch;\n _patchGrid.data[patch.index] = 1;\n }\n\n // rasterize the patches found to determine area\n _patchGrid.zeroBorder();\n\n while (( currIdx = notYetProcessed()) < _patchLabelGrid.data.length) {\n label++;\n trace(currIdx);\n }\n\n // draw patch-labels if requested\n if (_config.showPatchLabels) {\n for ( j = 0; j < _patchLabelGrid.data.length; j++) {\n if (_patchLabelGrid.data[j] > 0 && _patchLabelGrid.data[j] <= label) {\n patch = _imageToPatchGrid.data[j];\n hsv[0] = (_patchLabelGrid.data[j] / (label + 1)) * 360;\n CVUtils.hsv2rgb(hsv, rgb);\n ImageDebug.drawRect(patch.pos, _subImageWrapper.size, _canvasContainer.ctx.binary, {color: \"rgb(\" + rgb.join(\",\") + \")\", lineWidth: 2});\n }\n }\n }\n\n return label;\n}\n\nexport default {\n init : function(inputImageWrapper, config) {\n _config = config;\n _inputImageWrapper = inputImageWrapper;\n\n initBuffers();\n initCanvas();\n },\n\n locate : function() {\n var patchesFound,\n topLabels,\n boxes;\n\n if (_config.halfSample) {\n CVUtils.halfSample(_inputImageWrapper, _currentImageWrapper);\n }\n\n binarizeImage();\n patchesFound = findPatches();\n // return unless 5% or more patches are found\n if (patchesFound.length < _numPatches.x * _numPatches.y * 0.05) {\n return null;\n }\n\n // rasterrize area by comparing angular similarity;\n var maxLabel = rasterizeAngularSimilarity(patchesFound);\n if (maxLabel < 1) {\n return null;\n }\n\n // search for area with the most patches (biggest connected area)\n topLabels = findBiggestConnectedAreas(maxLabel);\n if (topLabels.length === 0) {\n return null;\n }\n\n boxes = findBoxes(topLabels, maxLabel);\n return boxes;\n },\n\n checkImageConstraints: function(inputStream, config) {\n var patchSize,\n width = inputStream.getWidth(),\n height = inputStream.getHeight(),\n halfSample = config.halfSample ? 0.5 : 1,\n size,\n area;\n\n // calculate width and height based on area\n if (inputStream.getConfig().area) {\n area = CVUtils.computeImageArea(width, height, inputStream.getConfig().area);\n inputStream.setTopRight({x: area.sx, y: area.sy});\n inputStream.setCanvasSize({x: width, y: height});\n width = area.sw;\n height = area.sh;\n }\n\n size = {\n x: Math.floor(width * halfSample),\n y: Math.floor(height * halfSample)\n };\n\n patchSize = CVUtils.calculatePatchSize(config.patchSize, size);\n console.log(\"Patch-Size: \" + JSON.stringify(patchSize));\n\n inputStream.setWidth(Math.floor(Math.floor(size.x/patchSize.x)*(1/halfSample)*patchSize.x));\n inputStream.setHeight(Math.floor(Math.floor(size.y/patchSize.y)*(1/halfSample)*patchSize.y));\n\n if ((inputStream.getWidth() % patchSize.x) === 0 && (inputStream.getHeight() % patchSize.y) === 0) {\n return true;\n }\n\n throw new Error(\"Image dimensions do not comply with the current settings: Width (\" +\n width + \" )and height (\" + height +\n \") must a multiple of \" + patchSize.x);\n }\n};\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/barcode_locator.js\n **/","import Tracer from './tracer';\n\n/**\n * http://www.codeproject.com/Tips/407172/Connected-Component-Labeling-and-Vectorization\n */\nvar Rasterizer = {\n createContour2D : function() {\n return {\n dir : null,\n index : null,\n firstVertex : null,\n insideContours : null,\n nextpeer : null,\n prevpeer : null\n };\n },\n CONTOUR_DIR : {\n CW_DIR : 0,\n CCW_DIR : 1,\n UNKNOWN_DIR : 2\n },\n DIR : {\n OUTSIDE_EDGE : -32767,\n INSIDE_EDGE : -32766\n },\n create : function(imageWrapper, labelWrapper) {\n var imageData = imageWrapper.data,\n labelData = labelWrapper.data,\n width = imageWrapper.size.x,\n height = imageWrapper.size.y,\n tracer = Tracer.create(imageWrapper, labelWrapper);\n\n return {\n rasterize : function(depthlabel) {\n var color,\n bc,\n lc,\n labelindex,\n cx,\n cy,\n colorMap = [],\n vertex,\n p,\n cc,\n sc,\n pos,\n connectedCount = 0,\n i;\n\n for ( i = 0; i < 400; i++) {\n colorMap[i] = 0;\n }\n\n colorMap[0] = imageData[0];\n cc = null;\n for ( cy = 1; cy < height - 1; cy++) {\n labelindex = 0;\n bc = colorMap[0];\n for ( cx = 1; cx < width - 1; cx++) {\n pos = cy * width + cx;\n if (labelData[pos] === 0) {\n color = imageData[pos];\n if (color !== bc) {\n if (labelindex === 0) {\n lc = connectedCount + 1;\n colorMap[lc] = color;\n bc = color;\n vertex = tracer.contourTracing(cy, cx, lc, color, Rasterizer.DIR.OUTSIDE_EDGE);\n if (vertex !== null) {\n connectedCount++;\n labelindex = lc;\n p = Rasterizer.createContour2D();\n p.dir = Rasterizer.CONTOUR_DIR.CW_DIR;\n p.index = labelindex;\n p.firstVertex = vertex;\n p.nextpeer = cc;\n p.insideContours = null;\n if (cc !== null) {\n cc.prevpeer = p;\n }\n cc = p;\n }\n } else {\n vertex = tracer.contourTracing(cy, cx, Rasterizer.DIR.INSIDE_EDGE, color, labelindex);\n if (vertex !== null) {\n p = Rasterizer.createContour2D();\n p.firstVertex = vertex;\n p.insideContours = null;\n if (depthlabel === 0) {\n p.dir = Rasterizer.CONTOUR_DIR.CCW_DIR;\n } else {\n p.dir = Rasterizer.CONTOUR_DIR.CW_DIR;\n }\n p.index = depthlabel;\n sc = cc;\n while ((sc !== null) && sc.index !== labelindex) {\n sc = sc.nextpeer;\n }\n if (sc !== null) {\n p.nextpeer = sc.insideContours;\n if (sc.insideContours !== null) {\n sc.insideContours.prevpeer = p;\n }\n sc.insideContours = p;\n }\n }\n }\n } else {\n labelData[pos] = labelindex;\n }\n } else if (labelData[pos] === Rasterizer.DIR.OUTSIDE_EDGE || labelData[pos] === Rasterizer.DIR.INSIDE_EDGE) {\n labelindex = 0;\n if (labelData[pos] === Rasterizer.DIR.INSIDE_EDGE) {\n bc = imageData[pos];\n } else {\n bc = colorMap[0];\n }\n } else {\n labelindex = labelData[pos];\n bc = colorMap[labelindex];\n }\n }\n }\n sc = cc;\n while (sc !== null) {\n sc.index = depthlabel;\n sc = sc.nextpeer;\n }\n return {\n cc : cc,\n count : connectedCount\n };\n },\n debug: {\n drawContour : function(canvas, firstContour) {\n var ctx = canvas.getContext(\"2d\"),\n pq = firstContour,\n iq,\n q,\n p;\n\n ctx.strokeStyle = \"red\";\n ctx.fillStyle = \"red\";\n ctx.lineWidth = 1;\n\n if (pq !== null) {\n iq = pq.insideContours;\n } else {\n iq = null;\n }\n\n while (pq !== null) {\n if (iq !== null) {\n q = iq;\n iq = iq.nextpeer;\n } else {\n q = pq;\n pq = pq.nextpeer;\n if (pq !== null) {\n iq = pq.insideContours;\n } else {\n iq = null;\n }\n }\n\n switch(q.dir) {\n case Rasterizer.CONTOUR_DIR.CW_DIR:\n ctx.strokeStyle = \"red\";\n break;\n case Rasterizer.CONTOUR_DIR.CCW_DIR:\n ctx.strokeStyle = \"blue\";\n break;\n case Rasterizer.CONTOUR_DIR.UNKNOWN_DIR:\n ctx.strokeStyle = \"green\";\n break;\n }\n\n p = q.firstVertex;\n ctx.beginPath();\n ctx.moveTo(p.x, p.y);\n do {\n p = p.next;\n ctx.lineTo(p.x, p.y);\n } while(p !== q.firstVertex);\n ctx.stroke();\n }\n }\n }\n };\n }\n};\n\nexport default Rasterizer;\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/rasterizer.js\n **/","/**\n * http://www.codeproject.com/Tips/407172/Connected-Component-Labeling-and-Vectorization\n */\nvar Tracer = {\n searchDirections : [[0, 1], [1, 1], [1, 0], [1, -1], [0, -1], [-1, -1], [-1, 0], [-1, 1]],\n create : function(imageWrapper, labelWrapper) {\n var imageData = imageWrapper.data,\n labelData = labelWrapper.data,\n searchDirections = this.searchDirections,\n width = imageWrapper.size.x,\n pos;\n\n function trace(current, color, label, edgelabel) {\n var i,\n y,\n x;\n\n for ( i = 0; i < 7; i++) {\n y = current.cy + searchDirections[current.dir][0];\n x = current.cx + searchDirections[current.dir][1];\n pos = y * width + x;\n if ((imageData[pos] === color) && ((labelData[pos] === 0) || (labelData[pos] === label))) {\n labelData[pos] = label;\n current.cy = y;\n current.cx = x;\n return true;\n } else {\n if (labelData[pos] === 0) {\n labelData[pos] = edgelabel;\n }\n current.dir = (current.dir + 1) % 8;\n }\n }\n return false;\n }\n\n function vertex2D(x, y, dir) {\n return {\n dir : dir,\n x : x,\n y : y,\n next : null,\n prev : null\n };\n }\n\n function contourTracing(sy, sx, label, color, edgelabel) {\n var Fv = null,\n Cv,\n P,\n ldir,\n current = {\n cx : sx,\n cy : sy,\n dir : 0\n };\n\n if (trace(current, color, label, edgelabel)) {\n Fv = vertex2D(sx, sy, current.dir);\n Cv = Fv;\n ldir = current.dir;\n P = vertex2D(current.cx, current.cy, 0);\n P.prev = Cv;\n Cv.next = P;\n P.next = null;\n Cv = P;\n do {\n current.dir = (current.dir + 6) % 8;\n trace(current, color, label, edgelabel);\n if (ldir != current.dir) {\n Cv.dir = current.dir;\n P = vertex2D(current.cx, current.cy, 0);\n P.prev = Cv;\n Cv.next = P;\n P.next = null;\n Cv = P;\n } else {\n Cv.dir = ldir;\n Cv.x = current.cx;\n Cv.y = current.cy;\n }\n ldir = current.dir;\n } while(current.cx != sx || current.cy != sy);\n Fv.prev = Cv.prev;\n Cv.prev.next = Fv;\n }\n return Fv;\n }\n\n return {\n trace : function(current, color, label, edgelabel) {\n return trace(current, color, label, edgelabel);\n },\n contourTracing : function(sy, sx, label, color, edgelabel) {\n return contourTracing(sy, sx, label, color, edgelabel);\n }\n };\n }\n};\n\nexport default (Tracer);\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/tracer.js\n **/","/* @preserve ASM BEGIN */\nfunction Skeletonizer(stdlib, foreign, buffer) {\n \"use asm\";\n\n var images = new stdlib.Uint8Array(buffer),\n size = foreign.size | 0,\n imul = stdlib.Math.imul;\n\n function erode(inImagePtr, outImagePtr) {\n inImagePtr = inImagePtr | 0;\n outImagePtr = outImagePtr | 0;\n\n var v = 0,\n u = 0,\n sum = 0,\n yStart1 = 0,\n yStart2 = 0,\n xStart1 = 0,\n xStart2 = 0,\n offset = 0;\n\n for ( v = 1; (v | 0) < ((size - 1) | 0); v = (v + 1) | 0) {\n offset = (offset + size) | 0;\n for ( u = 1; (u | 0) < ((size - 1) | 0); u = (u + 1) | 0) {\n yStart1 = (offset - size) | 0;\n yStart2 = (offset + size) | 0;\n xStart1 = (u - 1) | 0;\n xStart2 = (u + 1) | 0;\n sum = ((images[(inImagePtr + yStart1 + xStart1) | 0] | 0) + (images[(inImagePtr + yStart1 + xStart2) | 0] | 0) + (images[(inImagePtr + offset + u) | 0] | 0) + (images[(inImagePtr + yStart2 + xStart1) | 0] | 0) + (images[(inImagePtr + yStart2 + xStart2) | 0] | 0)) | 0;\n if ((sum | 0) == (5 | 0)) {\n images[(outImagePtr + offset + u) | 0] = 1;\n } else {\n images[(outImagePtr + offset + u) | 0] = 0;\n }\n }\n }\n return;\n }\n\n function subtract(aImagePtr, bImagePtr, outImagePtr) {\n aImagePtr = aImagePtr | 0;\n bImagePtr = bImagePtr | 0;\n outImagePtr = outImagePtr | 0;\n\n var length = 0;\n\n length = imul(size, size) | 0;\n\n while ((length | 0) > 0) {\n length = (length - 1) | 0;\n images[(outImagePtr + length) | 0] = ((images[(aImagePtr + length) | 0] | 0) - (images[(bImagePtr + length) | 0] | 0)) | 0;\n }\n }\n\n function bitwiseOr(aImagePtr, bImagePtr, outImagePtr) {\n aImagePtr = aImagePtr | 0;\n bImagePtr = bImagePtr | 0;\n outImagePtr = outImagePtr | 0;\n\n var length = 0;\n\n length = imul(size, size) | 0;\n\n while ((length | 0) > 0) {\n length = (length - 1) | 0;\n images[(outImagePtr + length) | 0] = ((images[(aImagePtr + length) | 0] | 0) | (images[(bImagePtr + length) | 0] | 0)) | 0;\n }\n }\n\n function countNonZero(imagePtr) {\n imagePtr = imagePtr | 0;\n\n var sum = 0,\n length = 0;\n\n length = imul(size, size) | 0;\n\n while ((length | 0) > 0) {\n length = (length - 1) | 0;\n sum = ((sum | 0) + (images[(imagePtr + length) | 0] | 0)) | 0;\n }\n\n return (sum | 0);\n }\n\n function init(imagePtr, value) {\n imagePtr = imagePtr | 0;\n value = value | 0;\n\n var length = 0;\n\n length = imul(size, size) | 0;\n\n while ((length | 0) > 0) {\n length = (length - 1) | 0;\n images[(imagePtr + length) | 0] = value;\n }\n }\n\n function dilate(inImagePtr, outImagePtr) {\n inImagePtr = inImagePtr | 0;\n outImagePtr = outImagePtr | 0;\n\n var v = 0,\n u = 0,\n sum = 0,\n yStart1 = 0,\n yStart2 = 0,\n xStart1 = 0,\n xStart2 = 0,\n offset = 0;\n\n for ( v = 1; (v | 0) < ((size - 1) | 0); v = (v + 1) | 0) {\n offset = (offset + size) | 0;\n for ( u = 1; (u | 0) < ((size - 1) | 0); u = (u + 1) | 0) {\n yStart1 = (offset - size) | 0;\n yStart2 = (offset + size) | 0;\n xStart1 = (u - 1) | 0;\n xStart2 = (u + 1) | 0;\n sum = ((images[(inImagePtr + yStart1 + xStart1) | 0] | 0) + (images[(inImagePtr + yStart1 + xStart2) | 0] | 0) + (images[(inImagePtr + offset + u) | 0] | 0) + (images[(inImagePtr + yStart2 + xStart1) | 0] | 0) + (images[(inImagePtr + yStart2 + xStart2) | 0] | 0)) | 0;\n if ((sum | 0) > (0 | 0)) {\n images[(outImagePtr + offset + u) | 0] = 1;\n } else {\n images[(outImagePtr + offset + u) | 0] = 0;\n }\n }\n }\n return;\n }\n\n function memcpy(srcImagePtr, dstImagePtr) {\n srcImagePtr = srcImagePtr | 0;\n dstImagePtr = dstImagePtr | 0;\n\n var length = 0;\n\n length = imul(size, size) | 0;\n\n while ((length | 0) > 0) {\n length = (length - 1) | 0;\n images[(dstImagePtr + length) | 0] = (images[(srcImagePtr + length) | 0] | 0);\n }\n }\n\n function zeroBorder(imagePtr) {\n imagePtr = imagePtr | 0;\n\n var x = 0,\n y = 0;\n\n for ( x = 0; (x | 0) < ((size - 1) | 0); x = (x + 1) | 0) {\n images[(imagePtr + x) | 0] = 0;\n images[(imagePtr + y) | 0] = 0;\n y = ((y + size) - 1) | 0;\n images[(imagePtr + y) | 0] = 0;\n y = (y + 1) | 0;\n }\n for ( x = 0; (x | 0) < (size | 0); x = (x + 1) | 0) {\n images[(imagePtr + y) | 0] = 0;\n y = (y + 1) | 0;\n }\n }\n\n function skeletonize() {\n var subImagePtr = 0,\n erodedImagePtr = 0,\n tempImagePtr = 0,\n skelImagePtr = 0,\n sum = 0,\n done = 0;\n\n erodedImagePtr = imul(size, size) | 0;\n tempImagePtr = (erodedImagePtr + erodedImagePtr) | 0;\n skelImagePtr = (tempImagePtr + erodedImagePtr) | 0;\n\n // init skel-image\n init(skelImagePtr, 0);\n zeroBorder(subImagePtr);\n\n do {\n erode(subImagePtr, erodedImagePtr);\n dilate(erodedImagePtr, tempImagePtr);\n subtract(subImagePtr, tempImagePtr, tempImagePtr);\n bitwiseOr(skelImagePtr, tempImagePtr, skelImagePtr);\n memcpy(erodedImagePtr, subImagePtr);\n sum = countNonZero(subImagePtr) | 0;\n done = ((sum | 0) == 0 | 0);\n } while(!done);\n }\n\n return {\n skeletonize : skeletonize\n };\n}\n/* @preserve ASM END */\n\nexport default Skeletonizer;\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/skeletonizer.js\n **/","export default {\n drawRect: function(pos, size, ctx, style){\n ctx.strokeStyle = style.color;\n ctx.fillStyle = style.color;\n ctx.lineWidth = 1;\n ctx.beginPath();\n ctx.strokeRect(pos.x, pos.y, size.x, size.y);\n },\n drawPath: function(path, def, ctx, style) {\n ctx.strokeStyle = style.color;\n ctx.fillStyle = style.color;\n ctx.lineWidth = style.lineWidth;\n ctx.beginPath();\n ctx.moveTo(path[0][def.x], path[0][def.y]);\n for (var j = 1; j < path.length; j++) {\n ctx.lineTo(path[j][def.x], path[j][def.y]);\n }\n ctx.closePath();\n ctx.stroke();\n },\n drawImage: function(imageData, size, ctx) {\n var canvasData = ctx.getImageData(0, 0, size.x, size.y),\n data = canvasData.data,\n imageDataPos = imageData.length,\n canvasDataPos = data.length,\n value;\n\n if (canvasDataPos/imageDataPos !== 4) {\n return false;\n }\n while(imageDataPos--){\n value = imageData[imageDataPos];\n data[--canvasDataPos] = 255;\n data[--canvasDataPos] = value;\n data[--canvasDataPos] = value;\n data[--canvasDataPos] = value;\n }\n ctx.putImageData(canvasData, 0, 0);\n return true;\n }\n};\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/image_debug.js\n **/","import Bresenham from './bresenham';\nimport ImageDebug from './image_debug';\nimport Code128Reader from './code_128_reader';\nimport EANReader from './ean_reader';\nimport Code39Reader from './code_39_reader';\nimport Code39VINReader from './code_39_vin_reader';\nimport CodabarReader from './codabar_reader';\nimport UPCReader from './upc_reader';\nimport EAN8Reader from './ean_8_reader';\nimport UPCEReader from './upc_e_reader';\nimport I2of5Reader from './i2of5_reader';\n\nvar readers = {\n code_128_reader: Code128Reader,\n ean_reader: EANReader,\n ean_8_reader: EAN8Reader,\n code_39_reader: Code39Reader,\n code_39_vin_reader: Code39VINReader,\n codabar_reader: CodabarReader,\n upc_reader: UPCReader,\n upc_e_reader: UPCEReader,\n i2of5_reader: I2of5Reader\n};\nexport default {\n create : function(config, inputImageWrapper) {\n var _canvas = {\n ctx : {\n frequency : null,\n pattern : null,\n overlay : null\n },\n dom : {\n frequency : null,\n pattern : null,\n overlay : null\n }\n },\n _barcodeReaders = [];\n\n initCanvas();\n initReaders();\n initConfig();\n\n function initCanvas() {\n if (typeof document !== 'undefined') {\n var $debug = document.querySelector(\"#debug.detection\");\n _canvas.dom.frequency = document.querySelector(\"canvas.frequency\");\n if (!_canvas.dom.frequency) {\n _canvas.dom.frequency = document.createElement(\"canvas\");\n _canvas.dom.frequency.className = \"frequency\";\n if($debug) {\n $debug.appendChild(_canvas.dom.frequency);\n }\n }\n _canvas.ctx.frequency = _canvas.dom.frequency.getContext(\"2d\");\n\n _canvas.dom.pattern = document.querySelector(\"canvas.patternBuffer\");\n if (!_canvas.dom.pattern) {\n _canvas.dom.pattern = document.createElement(\"canvas\");\n _canvas.dom.pattern.className = \"patternBuffer\";\n if($debug) {\n $debug.appendChild(_canvas.dom.pattern);\n }\n }\n _canvas.ctx.pattern = _canvas.dom.pattern.getContext(\"2d\");\n\n _canvas.dom.overlay = document.querySelector(\"canvas.drawingBuffer\");\n if (_canvas.dom.overlay) {\n _canvas.ctx.overlay = _canvas.dom.overlay.getContext(\"2d\");\n }\n }\n }\n\n function initReaders() {\n config.readers.forEach(function(readerConfig) {\n var reader,\n config = {};\n\n if (typeof readerConfig === 'object') {\n reader = readerConfig.format;\n config = readerConfig.config;\n } else if (typeof readerConfig === 'string') {\n reader = readerConfig;\n }\n _barcodeReaders.push(new readers[reader](config));\n });\n console.log(\"Registered Readers: \" + _barcodeReaders\n .map(function(reader) {return JSON.stringify({format: reader.FORMAT, config: reader.config});})\n .join(', '));\n }\n\n function initConfig() {\n if (typeof document !== 'undefined') {\n var i,\n vis = [{\n node : _canvas.dom.frequency,\n prop : config.showFrequency\n }, {\n node : _canvas.dom.pattern,\n prop : config.showPattern\n }];\n\n for (i = 0; i < vis.length; i++) {\n if (vis[i].prop === true) {\n vis[i].node.style.display = \"block\";\n } else {\n vis[i].node.style.display = \"none\";\n }\n }\n }\n }\n\n /**\n * extend the line on both ends\n * @param {Array} line\n * @param {Number} angle\n */\n function getExtendedLine(line, angle, ext) {\n function extendLine(amount) {\n var extension = {\n y : amount * Math.sin(angle),\n x : amount * Math.cos(angle)\n };\n\n line[0].y -= extension.y;\n line[0].x -= extension.x;\n line[1].y += extension.y;\n line[1].x += extension.x;\n }\n\n // check if inside image\n extendLine(ext);\n while (ext > 1 && (!inputImageWrapper.inImageWithBorder(line[0], 0) || !inputImageWrapper.inImageWithBorder(line[1], 0))) {\n ext -= Math.ceil(ext/2);\n extendLine(-ext);\n }\n return line;\n }\n\n function getLine(box) {\n return [{\n x : (box[1][0] - box[0][0]) / 2 + box[0][0],\n y : (box[1][1] - box[0][1]) / 2 + box[0][1]\n }, {\n x : (box[3][0] - box[2][0]) / 2 + box[2][0],\n y : (box[3][1] - box[2][1]) / 2 + box[2][1]\n }];\n }\n\n function tryDecode(line) {\n var result = null,\n i,\n barcodeLine = Bresenham.getBarcodeLine(inputImageWrapper, line[0], line[1]);\n\n if (config.showFrequency) {\n ImageDebug.drawPath(line, {x: 'x', y: 'y'}, _canvas.ctx.overlay, {color: 'red', lineWidth: 3});\n Bresenham.debug.printFrequency(barcodeLine.line, _canvas.dom.frequency);\n }\n Bresenham.toBinaryLine(barcodeLine);\n if (config.showPattern) {\n Bresenham.debug.printPattern(barcodeLine.line, _canvas.dom.pattern);\n }\n\n for ( i = 0; i < _barcodeReaders.length && result === null; i++) {\n result = _barcodeReaders[i].decodePattern(barcodeLine.line);\n }\n if(result === null){\n return null;\n }\n return {\n codeResult: result,\n barcodeLine: barcodeLine\n };\n\n }\n\n /**\n * This method slices the given area apart and tries to detect a barcode-pattern\n * for each slice. It returns the decoded barcode, or null if nothing was found\n * @param {Array} box\n * @param {Array} line\n * @param {Number} lineAngle\n */\n function tryDecodeBruteForce(box, line, lineAngle) {\n var sideLength = Math.sqrt(Math.pow(box[1][0] - box[0][0], 2) + Math.pow((box[1][1] - box[0][1]), 2)),\n i,\n slices = 16,\n result = null,\n dir,\n extension,\n xdir = Math.sin(lineAngle),\n ydir = Math.cos(lineAngle);\n\n for ( i = 1; i < slices && result === null; i++) {\n // move line perpendicular to angle\n dir = sideLength / slices * i * (i % 2 === 0 ? -1 : 1);\n extension = {\n y : dir * xdir,\n x : dir * ydir\n };\n line[0].y += extension.x;\n line[0].x -= extension.y;\n line[1].y += extension.x;\n line[1].x -= extension.y;\n\n result = tryDecode(line);\n }\n return result;\n }\n\n function getLineLength(line) {\n return Math.sqrt(\n Math.pow(Math.abs(line[1].y - line[0].y), 2) +\n Math.pow(Math.abs(line[1].x - line[0].x), 2));\n }\n\n /**\n * With the help of the configured readers (Code128 or EAN) this function tries to detect a\n * valid barcode pattern within the given area.\n * @param {Object} box The area to search in\n * @returns {Object} the result {codeResult, line, angle, pattern, threshold}\n */\n function decodeFromBoundingBox(box) {\n var line,\n lineAngle,\n ctx = _canvas.ctx.overlay,\n result,\n lineLength;\n\n if (config.drawBoundingBox && ctx) {\n ImageDebug.drawPath(box, {x: 0, y: 1}, ctx, {color: \"blue\", lineWidth: 2});\n }\n\n line = getLine(box);\n lineLength = getLineLength(line);\n lineAngle = Math.atan2(line[1].y - line[0].y, line[1].x - line[0].x);\n line = getExtendedLine(line, lineAngle, Math.floor(lineLength*0.1));\n if(line === null){\n return null;\n }\n\n result = tryDecode(line);\n if(result === null) {\n result = tryDecodeBruteForce(box, line, lineAngle);\n }\n\n if(result === null) {\n return null;\n }\n\n if (result && config.drawScanline && ctx) {\n ImageDebug.drawPath(line, {x: 'x', y: 'y'}, ctx, {color: 'red', lineWidth: 3});\n }\n\n return {\n codeResult : result.codeResult,\n line : line,\n angle : lineAngle,\n pattern : result.barcodeLine.line,\n threshold : result.barcodeLine.threshold\n };\n }\n\n return {\n decodeFromBoundingBox : function(box) {\n return decodeFromBoundingBox(box);\n },\n decodeFromBoundingBoxes : function(boxes) {\n var i, result;\n for ( i = 0; i < boxes.length; i++) {\n result = decodeFromBoundingBox(boxes[i]);\n if (result && result.codeResult) {\n result.box = boxes[i];\n return result;\n }\n }\n },\n setReaders: function(readers) {\n config.readers = readers;\n _barcodeReaders.length = 0;\n initReaders();\n }\n };\n }\n};\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/barcode_decoder.js\n **/","import CVUtils from './cv_utils';\nimport ImageWrapper from './image_wrapper';\n\nvar Bresenham = {};\n\nvar Slope = {\n DIR : {\n UP : 1,\n DOWN : -1\n }\n};\n/**\n * Scans a line of the given image from point p1 to p2 and returns a result object containing\n * gray-scale values (0-255) of the underlying pixels in addition to the min\n * and max values.\n * @param {Object} imageWrapper\n * @param {Object} p1 The start point {x,y}\n * @param {Object} p2 The end point {x,y}\n * @returns {line, min, max}\n */\nBresenham.getBarcodeLine = function(imageWrapper, p1, p2) {\n var x0 = p1.x | 0,\n y0 = p1.y | 0,\n x1 = p2.x | 0,\n y1 = p2.y | 0,\n steep = Math.abs(y1 - y0) > Math.abs(x1 - x0),\n deltax,\n deltay,\n error,\n ystep,\n y,\n tmp,\n x,\n line = [],\n imageData = imageWrapper.data,\n width = imageWrapper.size.x,\n sum = 0,\n val,\n min = 255,\n max = 0;\n\n function read(a, b) {\n val = imageData[b * width + a];\n sum += val;\n min = val < min ? val : min;\n max = val > max ? val : max;\n line.push(val);\n }\n\n if (steep) {\n tmp = x0;\n x0 = y0;\n y0 = tmp;\n\n tmp = x1;\n x1 = y1;\n y1 = tmp;\n }\n if (x0 > x1) {\n tmp = x0;\n x0 = x1;\n x1 = tmp;\n\n tmp = y0;\n y0 = y1;\n y1 = tmp;\n }\n deltax = x1 - x0;\n deltay = Math.abs(y1 - y0);\n error = (deltax / 2) | 0;\n y = y0;\n ystep = y0 < y1 ? 1 : -1;\n for ( x = x0; x < x1; x++) {\n if(steep){\n read(y, x);\n } else {\n read(x, y);\n }\n error = error - deltay;\n if (error < 0) {\n y = y + ystep;\n error = error + deltax;\n }\n }\n\n return {\n line : line,\n min : min,\n max : max\n };\n};\n\nBresenham.toOtsuBinaryLine = function(result) {\n var line = result.line,\n image = new ImageWrapper({x: line.length - 1, y: 1}, line),\n threshold = CVUtils.determineOtsuThreshold(image, 5);\n\n line = CVUtils.sharpenLine(line);\n CVUtils.thresholdImage(image, threshold);\n\n return {\n line: line,\n threshold: threshold\n };\n};\n\n/**\n * Converts the result from getBarcodeLine into a binary representation\n * also considering the frequency and slope of the signal for more robust results\n * @param {Object} result {line, min, max}\n */\nBresenham.toBinaryLine = function(result) {\n\n var min = result.min,\n max = result.max,\n line = result.line,\n slope,\n slope2,\n center = min + (max - min) / 2,\n extrema = [],\n currentDir,\n dir,\n threshold = (max - min) / 12,\n rThreshold = -threshold,\n i,\n j;\n\n // 1. find extrema\n currentDir = line[0] > center ? Slope.DIR.UP : Slope.DIR.DOWN;\n extrema.push({\n pos : 0,\n val : line[0]\n });\n for ( i = 0; i < line.length - 2; i++) {\n slope = (line[i + 1] - line[i]);\n slope2 = (line[i + 2] - line[i + 1]);\n if ((slope + slope2) < rThreshold && line[i + 1] < (center*1.5)) {\n dir = Slope.DIR.DOWN;\n } else if ((slope + slope2) > threshold && line[i + 1] > (center*0.5)) {\n dir = Slope.DIR.UP;\n } else {\n dir = currentDir;\n }\n\n if (currentDir !== dir) {\n extrema.push({\n pos : i,\n val : line[i]\n });\n currentDir = dir;\n }\n }\n extrema.push({\n pos : line.length,\n val : line[line.length - 1]\n });\n\n for ( j = extrema[0].pos; j < extrema[1].pos; j++) {\n line[j] = line[j] > center ? 0 : 1;\n }\n\n // iterate over extrema and convert to binary based on avg between minmax\n for ( i = 1; i < extrema.length - 1; i++) {\n if (extrema[i + 1].val > extrema[i].val) {\n threshold = (extrema[i].val + ((extrema[i + 1].val - extrema[i].val) / 3) * 2) | 0;\n } else {\n threshold = (extrema[i + 1].val + ((extrema[i].val - extrema[i + 1].val) / 3)) | 0;\n }\n\n for ( j = extrema[i].pos; j < extrema[i + 1].pos; j++) {\n line[j] = line[j] > threshold ? 0 : 1;\n }\n }\n\n return {\n line : line,\n threshold : threshold\n };\n};\n\n/**\n * Used for development only\n */\nBresenham.debug = {\n printFrequency: function(line, canvas) {\n var i,\n ctx = canvas.getContext(\"2d\");\n canvas.width = line.length;\n canvas.height = 256;\n\n ctx.beginPath();\n ctx.strokeStyle = \"blue\";\n for ( i = 0; i < line.length; i++) {\n ctx.moveTo(i, 255);\n ctx.lineTo(i, 255 - line[i]);\n }\n ctx.stroke();\n ctx.closePath();\n },\n\n printPattern: function(line, canvas) {\n var ctx = canvas.getContext(\"2d\"), i;\n\n canvas.width = line.length;\n ctx.fillColor = \"black\";\n for ( i = 0; i < line.length; i++) {\n if (line[i] === 1) {\n ctx.fillRect(i, 0, 1, 100);\n }\n }\n }\n};\n\nexport default Bresenham;\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/bresenham.js\n **/","import BarcodeReader from './barcode_reader';\n\nfunction Code128Reader() {\n BarcodeReader.call(this);\n}\n\nvar properties = {\n CODE_SHIFT : {value: 98},\n CODE_C : {value: 99},\n CODE_B : {value: 100},\n CODE_A : {value: 101},\n START_CODE_A : {value: 103},\n START_CODE_B : {value: 104},\n START_CODE_C : {value: 105},\n STOP_CODE : {value: 106},\n MODULO : {value: 11},\n CODE_PATTERN : {value: [\n [2, 1, 2, 2, 2, 2],\n [2, 2, 2, 1, 2, 2],\n [2, 2, 2, 2, 2, 1],\n [1, 2, 1, 2, 2, 3],\n [1, 2, 1, 3, 2, 2],\n [1, 3, 1, 2, 2, 2],\n [1, 2, 2, 2, 1, 3],\n [1, 2, 2, 3, 1, 2],\n [1, 3, 2, 2, 1, 2],\n [2, 2, 1, 2, 1, 3],\n [2, 2, 1, 3, 1, 2],\n [2, 3, 1, 2, 1, 2],\n [1, 1, 2, 2, 3, 2],\n [1, 2, 2, 1, 3, 2],\n [1, 2, 2, 2, 3, 1],\n [1, 1, 3, 2, 2, 2],\n [1, 2, 3, 1, 2, 2],\n [1, 2, 3, 2, 2, 1],\n [2, 2, 3, 2, 1, 1],\n [2, 2, 1, 1, 3, 2],\n [2, 2, 1, 2, 3, 1],\n [2, 1, 3, 2, 1, 2],\n [2, 2, 3, 1, 1, 2],\n [3, 1, 2, 1, 3, 1],\n [3, 1, 1, 2, 2, 2],\n [3, 2, 1, 1, 2, 2],\n [3, 2, 1, 2, 2, 1],\n [3, 1, 2, 2, 1, 2],\n [3, 2, 2, 1, 1, 2],\n [3, 2, 2, 2, 1, 1],\n [2, 1, 2, 1, 2, 3],\n [2, 1, 2, 3, 2, 1],\n [2, 3, 2, 1, 2, 1],\n [1, 1, 1, 3, 2, 3],\n [1, 3, 1, 1, 2, 3],\n [1, 3, 1, 3, 2, 1],\n [1, 1, 2, 3, 1, 3],\n [1, 3, 2, 1, 1, 3],\n [1, 3, 2, 3, 1, 1],\n [2, 1, 1, 3, 1, 3],\n [2, 3, 1, 1, 1, 3],\n [2, 3, 1, 3, 1, 1],\n [1, 1, 2, 1, 3, 3],\n [1, 1, 2, 3, 3, 1],\n [1, 3, 2, 1, 3, 1],\n [1, 1, 3, 1, 2, 3],\n [1, 1, 3, 3, 2, 1],\n [1, 3, 3, 1, 2, 1],\n [3, 1, 3, 1, 2, 1],\n [2, 1, 1, 3, 3, 1],\n [2, 3, 1, 1, 3, 1],\n [2, 1, 3, 1, 1, 3],\n [2, 1, 3, 3, 1, 1],\n [2, 1, 3, 1, 3, 1],\n [3, 1, 1, 1, 2, 3],\n [3, 1, 1, 3, 2, 1],\n [3, 3, 1, 1, 2, 1],\n [3, 1, 2, 1, 1, 3],\n [3, 1, 2, 3, 1, 1],\n [3, 3, 2, 1, 1, 1],\n [3, 1, 4, 1, 1, 1],\n [2, 2, 1, 4, 1, 1],\n [4, 3, 1, 1, 1, 1],\n [1, 1, 1, 2, 2, 4],\n [1, 1, 1, 4, 2, 2],\n [1, 2, 1, 1, 2, 4],\n [1, 2, 1, 4, 2, 1],\n [1, 4, 1, 1, 2, 2],\n [1, 4, 1, 2, 2, 1],\n [1, 1, 2, 2, 1, 4],\n [1, 1, 2, 4, 1, 2],\n [1, 2, 2, 1, 1, 4],\n [1, 2, 2, 4, 1, 1],\n [1, 4, 2, 1, 1, 2],\n [1, 4, 2, 2, 1, 1],\n [2, 4, 1, 2, 1, 1],\n [2, 2, 1, 1, 1, 4],\n [4, 1, 3, 1, 1, 1],\n [2, 4, 1, 1, 1, 2],\n [1, 3, 4, 1, 1, 1],\n [1, 1, 1, 2, 4, 2],\n [1, 2, 1, 1, 4, 2],\n [1, 2, 1, 2, 4, 1],\n [1, 1, 4, 2, 1, 2],\n [1, 2, 4, 1, 1, 2],\n [1, 2, 4, 2, 1, 1],\n [4, 1, 1, 2, 1, 2],\n [4, 2, 1, 1, 1, 2],\n [4, 2, 1, 2, 1, 1],\n [2, 1, 2, 1, 4, 1],\n [2, 1, 4, 1, 2, 1],\n [4, 1, 2, 1, 2, 1],\n [1, 1, 1, 1, 4, 3],\n [1, 1, 1, 3, 4, 1],\n [1, 3, 1, 1, 4, 1],\n [1, 1, 4, 1, 1, 3],\n [1, 1, 4, 3, 1, 1],\n [4, 1, 1, 1, 1, 3],\n [4, 1, 1, 3, 1, 1],\n [1, 1, 3, 1, 4, 1],\n [1, 1, 4, 1, 3, 1],\n [3, 1, 1, 1, 4, 1],\n [4, 1, 1, 1, 3, 1],\n [2, 1, 1, 4, 1, 2],\n [2, 1, 1, 2, 1, 4],\n [2, 1, 1, 2, 3, 2],\n [2, 3, 3, 1, 1, 1, 2]\n ]},\n SINGLE_CODE_ERROR: {value: 1},\n AVG_CODE_ERROR: {value: 0.5},\n FORMAT: {value: \"code_128\", writeable: false}\n};\n\nCode128Reader.prototype = Object.create(BarcodeReader.prototype, properties);\nCode128Reader.prototype.constructor = Code128Reader;\n\nCode128Reader.prototype._decodeCode = function(start) {\n var counter = [0, 0, 0, 0, 0, 0],\n i,\n self = this,\n offset = start,\n isWhite = !self._row[offset],\n counterPos = 0,\n bestMatch = {\n error : Number.MAX_VALUE,\n code : -1,\n start : start,\n end : start\n },\n code,\n error,\n normalized;\n\n for ( i = offset; i < self._row.length; i++) {\n if (self._row[i] ^ isWhite) {\n counter[counterPos]++;\n } else {\n if (counterPos === counter.length - 1) {\n normalized = self._normalize(counter);\n if (normalized) {\n for (code = 0; code < self.CODE_PATTERN.length; code++) {\n error = self._matchPattern(normalized, self.CODE_PATTERN[code]);\n if (error < bestMatch.error) {\n bestMatch.code = code;\n bestMatch.error = error;\n }\n }\n bestMatch.end = i;\n return bestMatch;\n }\n } else {\n counterPos++;\n }\n counter[counterPos] = 1;\n isWhite = !isWhite;\n }\n }\n return null;\n};\n\nCode128Reader.prototype._findStart = function() {\n var counter = [0, 0, 0, 0, 0, 0],\n i,\n self = this,\n offset = self._nextSet(self._row),\n isWhite = false,\n counterPos = 0,\n bestMatch = {\n error : Number.MAX_VALUE,\n code : -1,\n start : 0,\n end : 0\n },\n code,\n error,\n j,\n sum,\n normalized;\n\n for ( i = offset; i < self._row.length; i++) {\n if (self._row[i] ^ isWhite) {\n counter[counterPos]++;\n } else {\n if (counterPos === counter.length - 1) {\n sum = 0;\n for ( j = 0; j < counter.length; j++) {\n sum += counter[j];\n }\n normalized = self._normalize(counter);\n if (normalized) {\n for (code = self.START_CODE_A; code <= self.START_CODE_C; code++) {\n error = self._matchPattern(normalized, self.CODE_PATTERN[code]);\n if (error < bestMatch.error) {\n bestMatch.code = code;\n bestMatch.error = error;\n }\n }\n if (bestMatch.error < self.AVG_CODE_ERROR) {\n bestMatch.start = i - sum;\n bestMatch.end = i;\n return bestMatch;\n }\n }\n\n for ( j = 0; j < 4; j++) {\n counter[j] = counter[j + 2];\n }\n counter[4] = 0;\n counter[5] = 0;\n counterPos--;\n } else {\n counterPos++;\n }\n counter[counterPos] = 1;\n isWhite = !isWhite;\n }\n }\n return null;\n};\n\nCode128Reader.prototype._decode = function() {\n var self = this,\n startInfo = self._findStart(),\n code = null,\n done = false,\n result = [],\n multiplier = 0,\n checksum = 0,\n codeset,\n rawResult = [],\n decodedCodes = [],\n shiftNext = false,\n unshift,\n lastCharacterWasPrintable;\n\n if (startInfo === null) {\n return null;\n }\n code = {\n code : startInfo.code,\n start : startInfo.start,\n end : startInfo.end\n };\n decodedCodes.push(code);\n checksum = code.code;\n switch(code.code) {\n case self.START_CODE_A:\n codeset = self.CODE_A;\n break;\n case self.START_CODE_B:\n codeset = self.CODE_B;\n break;\n case self.START_CODE_C:\n codeset = self.CODE_C;\n break;\n default:\n return null;\n }\n\n while (!done) {\n unshift = shiftNext;\n shiftNext = false;\n code = self._decodeCode(code.end);\n if (code !== null) {\n if (code.code !== self.STOP_CODE) {\n rawResult.push(code.code);\n multiplier++;\n checksum += multiplier * code.code;\n }\n decodedCodes.push(code);\n\n switch(codeset) {\n case self.CODE_A:\n if (code.code < 64) {\n result.push(String.fromCharCode(32 + code.code));\n } else if (code.code < 96) {\n result.push(String.fromCharCode(code.code - 64));\n } else {\n switch (code.code) {\n case self.CODE_SHIFT:\n shiftNext = true;\n codeset = self.CODE_B;\n break;\n case self.CODE_B:\n codeset = self.CODE_B;\n break;\n case self.CODE_C:\n codeset = self.CODE_C;\n break;\n case self.STOP_CODE:\n done = true;\n break;\n }\n }\n break;\n case self.CODE_B:\n if (code.code < 96) {\n result.push(String.fromCharCode(32 + code.code));\n } else {\n if (code.code != self.STOP_CODE) {\n lastCharacterWasPrintable = false;\n }\n switch (code.code) {\n case self.CODE_SHIFT:\n shiftNext = true;\n codeset = self.CODE_A;\n break;\n case self.CODE_A:\n codeset = self.CODE_A;\n break;\n case self.CODE_C:\n codeset = self.CODE_C;\n break;\n case self.STOP_CODE:\n done = true;\n break;\n }\n }\n break;\n case self.CODE_C:\n if (code.code < 100) {\n result.push(code.code < 10 ? \"0\" + code.code : code.code);\n }\n switch (code.code) {\n case self.CODE_A:\n codeset = self.CODE_A;\n break;\n case self.CODE_B:\n codeset = self.CODE_B;\n break;\n case self.STOP_CODE:\n done = true;\n break;\n }\n break;\n }\n } else {\n done = true;\n }\n if (unshift) {\n codeset = codeset == self.CODE_A ? self.CODE_B : self.CODE_A;\n }\n }\n\n if (code === null) {\n return null;\n }\n\n // find end bar\n code.end = self._nextUnset(self._row, code.end);\n if(!self._verifyTrailingWhitespace(code)){\n return null;\n }\n\n // checksum\n // Does not work correctly yet!!! startcode - endcode?\n checksum -= multiplier * rawResult[rawResult.length - 1];\n if (checksum % 103 != rawResult[rawResult.length - 1]) {\n return null;\n }\n\n if (!result.length) {\n return null;\n }\n\n // remove last code from result (checksum)\n result.splice(result.length - 1, 1);\n\n\n\n return {\n code : result.join(\"\"),\n start : startInfo.start,\n end : code.end,\n codeset : codeset,\n startInfo : startInfo,\n decodedCodes : decodedCodes,\n endInfo : code\n };\n};\n\n\nBarcodeReader.prototype._verifyTrailingWhitespace = function(endInfo) {\n var self = this,\n trailingWhitespaceEnd;\n\n trailingWhitespaceEnd = endInfo.end + ((endInfo.end - endInfo.start) / 2);\n if (trailingWhitespaceEnd < self._row.length) {\n if (self._matchRange(endInfo.end, trailingWhitespaceEnd, 0)) {\n return endInfo;\n }\n }\n return null;\n};\n\nexport default Code128Reader;\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/code_128_reader.js\n **/","function BarcodeReader(config) {\n this._row = [];\n this.config = config || {};\n return this;\n}\n\nBarcodeReader.prototype._nextUnset = function(line, start) {\n var i;\n\n if (start === undefined) {\n start = 0;\n }\n for (i = start; i < line.length; i++) {\n if (!line[i]) {\n return i;\n }\n }\n return line.length;\n};\n\nBarcodeReader.prototype._matchPattern = function(counter, code) {\n var i,\n error = 0,\n singleError = 0,\n modulo = this.MODULO,\n maxSingleError = this.SINGLE_CODE_ERROR || 1;\n\n for (i = 0; i < counter.length; i++) {\n singleError = Math.abs(code[i] - counter[i]);\n if (singleError > maxSingleError) {\n return Number.MAX_VALUE;\n }\n error += singleError;\n }\n return error/modulo;\n};\n\nBarcodeReader.prototype._nextSet = function(line, offset) {\n var i;\n\n offset = offset || 0;\n for (i = offset; i < line.length; i++) {\n if (line[i]) {\n return i;\n }\n }\n return line.length;\n};\n\nBarcodeReader.prototype._normalize = function(counter, modulo) {\n var i,\n self = this,\n sum = 0,\n ratio,\n numOnes = 0,\n normalized = [],\n norm = 0;\n\n if (!modulo) {\n modulo = self.MODULO;\n }\n for (i = 0; i < counter.length; i++) {\n if (counter[i] === 1) {\n numOnes++;\n } else {\n sum += counter[i];\n }\n }\n ratio = sum / (modulo - numOnes);\n if (ratio > 1.0) {\n for (i = 0; i < counter.length; i++) {\n norm = counter[i] === 1 ? counter[i] : counter[i] / ratio;\n normalized.push(norm);\n }\n } else {\n ratio = (sum + numOnes)/modulo;\n for (i = 0; i < counter.length; i++) {\n norm = counter[i] / ratio;\n normalized.push(norm);\n }\n }\n return normalized;\n};\n\nBarcodeReader.prototype._matchTrace = function(cmpCounter, epsilon) {\n var counter = [],\n i,\n self = this,\n offset = self._nextSet(self._row),\n isWhite = !self._row[offset],\n counterPos = 0,\n bestMatch = {\n error : Number.MAX_VALUE,\n code : -1,\n start : 0\n },\n error;\n\n if (cmpCounter) {\n for ( i = 0; i < cmpCounter.length; i++) {\n counter.push(0);\n }\n for ( i = offset; i < self._row.length; i++) {\n if (self._row[i] ^ isWhite) {\n counter[counterPos]++;\n } else {\n if (counterPos === counter.length - 1) {\n error = self._matchPattern(counter, cmpCounter);\n\n if (error < epsilon) {\n bestMatch.start = i - offset;\n bestMatch.end = i;\n bestMatch.counter = counter;\n return bestMatch;\n } else {\n return null;\n }\n } else {\n counterPos++;\n }\n counter[counterPos] = 1;\n isWhite = !isWhite;\n }\n }\n } else {\n counter.push(0);\n for ( i = offset; i < self._row.length; i++) {\n if (self._row[i] ^ isWhite) {\n counter[counterPos]++;\n } else {\n counterPos++;\n counter.push(0);\n counter[counterPos] = 1;\n isWhite = !isWhite;\n }\n }\n }\n\n // if cmpCounter was not given\n bestMatch.start = offset;\n bestMatch.end = self._row.length - 1;\n bestMatch.counter = counter;\n return bestMatch;\n};\n\nBarcodeReader.prototype.decodePattern = function(pattern) {\n var self = this,\n result;\n\n self._row = pattern;\n result = self._decode();\n if (result === null) {\n self._row.reverse();\n result = self._decode();\n if (result) {\n result.direction = BarcodeReader.DIRECTION.REVERSE;\n result.start = self._row.length - result.start;\n result.end = self._row.length - result.end;\n }\n } else {\n result.direction = BarcodeReader.DIRECTION.FORWARD;\n }\n if (result) {\n result.format = self.FORMAT;\n }\n return result;\n};\n\nBarcodeReader.prototype._matchRange = function(start, end, value) {\n var i;\n\n start = start < 0 ? 0 : start;\n for (i = start; i < end; i++) {\n if (this._row[i] !== value) {\n return false;\n }\n }\n return true;\n};\n\nBarcodeReader.prototype._fillCounters = function(offset, end, isWhite) {\n var self = this,\n counterPos = 0,\n i,\n counters = [];\n\n isWhite = (typeof isWhite !== 'undefined') ? isWhite : true;\n offset = (typeof offset !== 'undefined') ? offset : self._nextUnset(self._row);\n end = end || self._row.length;\n\n counters[counterPos] = 0;\n for (i = offset; i < end; i++) {\n if (self._row[i] ^ isWhite) {\n counters[counterPos]++;\n } else {\n counterPos++;\n counters[counterPos] = 1;\n isWhite = !isWhite;\n }\n }\n return counters;\n};\n\nObject.defineProperty(BarcodeReader.prototype, \"FORMAT\", {\n value: 'unknown',\n writeable: false\n});\n\nBarcodeReader.DIRECTION = {\n FORWARD : 1,\n REVERSE : -1\n};\n\nBarcodeReader.Exception = {\n StartNotFoundException : \"Start-Info was not found!\",\n CodeNotFoundException : \"Code could not be found!\",\n PatternNotFoundException : \"Pattern could not be found!\"\n};\n\nBarcodeReader.CONFIG_KEYS = {};\n\nexport default BarcodeReader;\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/barcode_reader.js\n **/","import BarcodeReader from './barcode_reader';\n\nfunction EANReader(opts) {\n BarcodeReader.call(this, opts);\n}\n\nvar properties = {\n CODE_L_START : {value: 0},\n MODULO : {value: 7},\n CODE_G_START : {value: 10},\n START_PATTERN : {value: [1 / 3 * 7, 1 / 3 * 7, 1 / 3 * 7]},\n STOP_PATTERN : {value: [1 / 3 * 7, 1 / 3 * 7, 1 / 3 * 7]},\n MIDDLE_PATTERN : {value: [1 / 5 * 7, 1 / 5 * 7, 1 / 5 * 7, 1 / 5 * 7, 1 / 5 * 7]},\n CODE_PATTERN : {value: [\n [3, 2, 1, 1],\n [2, 2, 2, 1],\n [2, 1, 2, 2],\n [1, 4, 1, 1],\n [1, 1, 3, 2],\n [1, 2, 3, 1],\n [1, 1, 1, 4],\n [1, 3, 1, 2],\n [1, 2, 1, 3],\n [3, 1, 1, 2],\n [1, 1, 2, 3],\n [1, 2, 2, 2],\n [2, 2, 1, 2],\n [1, 1, 4, 1],\n [2, 3, 1, 1],\n [1, 3, 2, 1],\n [4, 1, 1, 1],\n [2, 1, 3, 1],\n [3, 1, 2, 1],\n [2, 1, 1, 3]\n ]},\n CODE_FREQUENCY : {value: [0, 11, 13, 14, 19, 25, 28, 21, 22, 26]},\n SINGLE_CODE_ERROR: {value: 0.67},\n AVG_CODE_ERROR: {value: 0.27},\n FORMAT: {value: \"ean_13\", writeable: false}\n};\n\nEANReader.prototype = Object.create(BarcodeReader.prototype, properties);\nEANReader.prototype.constructor = EANReader;\n\nEANReader.prototype._decodeCode = function(start, coderange) {\n var counter = [0, 0, 0, 0],\n i,\n self = this,\n offset = start,\n isWhite = !self._row[offset],\n counterPos = 0,\n bestMatch = {\n error : Number.MAX_VALUE,\n code : -1,\n start : start,\n end : start\n },\n code,\n error,\n normalized;\n\n if (!coderange) {\n coderange = self.CODE_PATTERN.length;\n }\n\n for ( i = offset; i < self._row.length; i++) {\n if (self._row[i] ^ isWhite) {\n counter[counterPos]++;\n } else {\n if (counterPos === counter.length - 1) {\n normalized = self._normalize(counter);\n if (normalized) {\n for (code = 0; code < coderange; code++) {\n error = self._matchPattern(normalized, self.CODE_PATTERN[code]);\n if (error < bestMatch.error) {\n bestMatch.code = code;\n bestMatch.error = error;\n }\n }\n bestMatch.end = i;\n if (bestMatch.error > self.AVG_CODE_ERROR) {\n return null;\n }\n return bestMatch;\n }\n } else {\n counterPos++;\n }\n counter[counterPos] = 1;\n isWhite = !isWhite;\n }\n }\n return null;\n};\n\nEANReader.prototype._findPattern = function(pattern, offset, isWhite, tryHarder, epsilon) {\n var counter = [],\n self = this,\n i,\n counterPos = 0,\n bestMatch = {\n error : Number.MAX_VALUE,\n code : -1,\n start : 0,\n end : 0\n },\n error,\n j,\n sum,\n normalized;\n\n if (!offset) {\n offset = self._nextSet(self._row);\n }\n\n if (isWhite === undefined) {\n isWhite = false;\n }\n\n if (tryHarder === undefined) {\n tryHarder = true;\n }\n\n if ( epsilon === undefined) {\n epsilon = self.AVG_CODE_ERROR;\n }\n\n for ( i = 0; i < pattern.length; i++) {\n counter[i] = 0;\n }\n\n for ( i = offset; i < self._row.length; i++) {\n if (self._row[i] ^ isWhite) {\n counter[counterPos]++;\n } else {\n if (counterPos === counter.length - 1) {\n sum = 0;\n for ( j = 0; j < counter.length; j++) {\n sum += counter[j];\n }\n normalized = self._normalize(counter);\n if (normalized) {\n error = self._matchPattern(normalized, pattern);\n\n if (error < epsilon) {\n bestMatch.error = error;\n bestMatch.start = i - sum;\n bestMatch.end = i;\n return bestMatch;\n }\n }\n if (tryHarder) {\n for ( j = 0; j < counter.length - 2; j++) {\n counter[j] = counter[j + 2];\n }\n counter[counter.length - 2] = 0;\n counter[counter.length - 1] = 0;\n counterPos--;\n } else {\n return null;\n }\n } else {\n counterPos++;\n }\n counter[counterPos] = 1;\n isWhite = !isWhite;\n }\n }\n return null;\n};\n\nEANReader.prototype._findStart = function() {\n var self = this,\n leadingWhitespaceStart,\n offset = self._nextSet(self._row),\n startInfo;\n\n while(!startInfo) {\n startInfo = self._findPattern(self.START_PATTERN, offset);\n if (!startInfo) {\n return null;\n }\n leadingWhitespaceStart = startInfo.start - (startInfo.end - startInfo.start);\n if (leadingWhitespaceStart >= 0) {\n if (self._matchRange(leadingWhitespaceStart, startInfo.start, 0)) {\n return startInfo;\n }\n }\n offset = startInfo.end;\n startInfo = null;\n }\n};\n\nEANReader.prototype._verifyTrailingWhitespace = function(endInfo) {\n var self = this,\n trailingWhitespaceEnd;\n\n trailingWhitespaceEnd = endInfo.end + (endInfo.end - endInfo.start);\n if (trailingWhitespaceEnd < self._row.length) {\n if (self._matchRange(endInfo.end, trailingWhitespaceEnd, 0)) {\n return endInfo;\n }\n }\n return null;\n};\n\nEANReader.prototype._findEnd = function(offset, isWhite) {\n var self = this,\n endInfo = self._findPattern(self.STOP_PATTERN, offset, isWhite, false);\n\n return endInfo !== null ? self._verifyTrailingWhitespace(endInfo) : null;\n};\n\nEANReader.prototype._calculateFirstDigit = function(codeFrequency) {\n var i,\n self = this;\n\n for ( i = 0; i < self.CODE_FREQUENCY.length; i++) {\n if (codeFrequency === self.CODE_FREQUENCY[i]) {\n return i;\n }\n }\n return null;\n};\n\nEANReader.prototype._decodePayload = function(code, result, decodedCodes) {\n var i,\n self = this,\n codeFrequency = 0x0,\n firstDigit;\n\n for ( i = 0; i < 6; i++) {\n code = self._decodeCode(code.end);\n if (!code) {\n return null;\n }\n if (code.code >= self.CODE_G_START) {\n code.code = code.code - self.CODE_G_START;\n codeFrequency |= 1 << (5 - i);\n } else {\n codeFrequency |= 0 << (5 - i);\n }\n result.push(code.code);\n decodedCodes.push(code);\n }\n\n firstDigit = self._calculateFirstDigit(codeFrequency);\n if (firstDigit === null) {\n return null;\n }\n result.unshift(firstDigit);\n\n code = self._findPattern(self.MIDDLE_PATTERN, code.end, true, false);\n if (code === null) {\n return null;\n }\n decodedCodes.push(code);\n\n for ( i = 0; i < 6; i++) {\n code = self._decodeCode(code.end, self.CODE_G_START);\n if (!code) {\n return null;\n }\n decodedCodes.push(code);\n result.push(code.code);\n }\n\n return code;\n};\n\nEANReader.prototype._decode = function() {\n var startInfo,\n self = this,\n code,\n result = [],\n decodedCodes = [];\n\n startInfo = self._findStart();\n if (!startInfo) {\n return null;\n }\n code = {\n code : startInfo.code,\n start : startInfo.start,\n end : startInfo.end\n };\n decodedCodes.push(code);\n code = self._decodePayload(code, result, decodedCodes);\n if (!code) {\n return null;\n }\n code = self._findEnd(code.end, false);\n if (!code){\n return null;\n }\n\n decodedCodes.push(code);\n\n // Checksum\n if (!self._checksum(result)) {\n return null;\n }\n\n return {\n code : result.join(\"\"),\n start : startInfo.start,\n end : code.end,\n codeset : \"\",\n startInfo : startInfo,\n decodedCodes : decodedCodes\n };\n};\n\nEANReader.prototype._checksum = function(result) {\n var sum = 0, i;\n\n for ( i = result.length - 2; i >= 0; i -= 2) {\n sum += result[i];\n }\n sum *= 3;\n for ( i = result.length - 1; i >= 0; i -= 2) {\n sum += result[i];\n }\n return sum % 10 === 0;\n};\n\nexport default (EANReader);\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/ean_reader.js\n **/","import BarcodeReader from './barcode_reader';\nimport ArrayHelper from './array_helper';\n\nfunction Code39Reader() {\n BarcodeReader.call(this);\n}\n\nvar properties = {\n ALPHABETH_STRING: {value: \"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ-. *$/+%\"},\n ALPHABET: {value: [48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 45, 46, 32, 42, 36, 47, 43, 37]},\n CHARACTER_ENCODINGS: {value: [0x034, 0x121, 0x061, 0x160, 0x031, 0x130, 0x070, 0x025, 0x124, 0x064, 0x109, 0x049, 0x148, 0x019, 0x118, 0x058, 0x00D, 0x10C, 0x04C, 0x01C, 0x103, 0x043, 0x142, 0x013, 0x112, 0x052, 0x007, 0x106, 0x046, 0x016, 0x181, 0x0C1, 0x1C0, 0x091, 0x190, 0x0D0, 0x085, 0x184, 0x0C4, 0x094, 0x0A8, 0x0A2, 0x08A, 0x02A]},\n ASTERISK: {value: 0x094},\n FORMAT: {value: \"code_39\", writeable: false}\n};\n\nCode39Reader.prototype = Object.create(BarcodeReader.prototype, properties);\nCode39Reader.prototype.constructor = Code39Reader;\n\nCode39Reader.prototype._toCounters = function(start, counter) {\n var self = this,\n numCounters = counter.length,\n end = self._row.length,\n isWhite = !self._row[start],\n i,\n counterPos = 0;\n\n ArrayHelper.init(counter, 0);\n\n for ( i = start; i < end; i++) {\n if (self._row[i] ^ isWhite) {\n counter[counterPos]++;\n } else {\n counterPos++;\n if (counterPos === numCounters) {\n break;\n } else {\n counter[counterPos] = 1;\n isWhite = !isWhite;\n }\n }\n }\n\n return counter;\n};\n\nCode39Reader.prototype._decode = function() {\n var self = this,\n counters = [0,0,0,0,0,0,0,0,0],\n result = [],\n start = self._findStart(),\n decodedChar,\n lastStart,\n pattern,\n nextStart;\n\n if (!start) {\n return null;\n }\n nextStart = self._nextSet(self._row, start.end);\n\n do {\n counters = self._toCounters(nextStart, counters);\n pattern = self._toPattern(counters);\n if (pattern < 0) {\n return null;\n }\n decodedChar = self._patternToChar(pattern);\n if (decodedChar < 0){\n return null;\n }\n result.push(decodedChar);\n lastStart = nextStart;\n nextStart += ArrayHelper.sum(counters);\n nextStart = self._nextSet(self._row, nextStart);\n } while(decodedChar !== '*');\n result.pop();\n\n if (!result.length) {\n return null;\n }\n\n if(!self._verifyTrailingWhitespace(lastStart, nextStart, counters)) {\n return null;\n }\n\n return {\n code : result.join(\"\"),\n start : start.start,\n end : nextStart,\n startInfo : start,\n decodedCodes : result\n };\n};\n\nCode39Reader.prototype._verifyTrailingWhitespace = function(lastStart, nextStart, counters) {\n var trailingWhitespaceEnd,\n patternSize = ArrayHelper.sum(counters);\n\n trailingWhitespaceEnd = nextStart - lastStart - patternSize;\n if ((trailingWhitespaceEnd * 3) >= patternSize) {\n return true;\n }\n return false;\n};\n\nCode39Reader.prototype._patternToChar = function(pattern) {\n var i,\n self = this;\n\n for (i = 0; i < self.CHARACTER_ENCODINGS.length; i++) {\n if (self.CHARACTER_ENCODINGS[i] === pattern) {\n return String.fromCharCode(self.ALPHABET[i]);\n }\n }\n};\n\nCode39Reader.prototype._findNextWidth = function(counters, current) {\n var i,\n minWidth = Number.MAX_VALUE;\n\n for (i = 0; i < counters.length; i++) {\n if (counters[i] < minWidth && counters[i] > current) {\n minWidth = counters[i];\n }\n }\n\n return minWidth;\n};\n\nCode39Reader.prototype._toPattern = function(counters) {\n var numCounters = counters.length,\n maxNarrowWidth = 0,\n numWideBars = numCounters,\n wideBarWidth = 0,\n self = this,\n pattern,\n i;\n\n while(numWideBars > 3) {\n maxNarrowWidth = self._findNextWidth(counters, maxNarrowWidth);\n numWideBars = 0;\n pattern = 0;\n for (i = 0; i < numCounters; i++) {\n if (counters[i] > maxNarrowWidth) {\n pattern |= 1 << (numCounters - 1 - i);\n numWideBars++;\n wideBarWidth += counters[i];\n }\n }\n\n if (numWideBars === 3) {\n for (i = 0; i < numCounters && numWideBars > 0; i++) {\n if (counters[i] > maxNarrowWidth) {\n numWideBars--;\n if ((counters[i] * 2) >= wideBarWidth) {\n return -1;\n }\n }\n }\n return pattern;\n }\n }\n return -1;\n};\n\nCode39Reader.prototype._findStart = function() {\n var self = this,\n offset = self._nextSet(self._row),\n patternStart = offset,\n counter = [0,0,0,0,0,0,0,0,0],\n counterPos = 0,\n isWhite = false,\n i,\n j,\n whiteSpaceMustStart;\n\n for ( i = offset; i < self._row.length; i++) {\n if (self._row[i] ^ isWhite) {\n counter[counterPos]++;\n } else {\n if (counterPos === counter.length - 1) {\n\n // find start pattern\n if (self._toPattern(counter) === self.ASTERISK) {\n whiteSpaceMustStart = Math.floor(Math.max(0, patternStart - ((i - patternStart) / 4)));\n if (self._matchRange(whiteSpaceMustStart, patternStart, 0)) {\n return {\n start: patternStart,\n end: i\n };\n }\n }\n\n patternStart += counter[0] + counter[1];\n for ( j = 0; j < 7; j++) {\n counter[j] = counter[j + 2];\n }\n counter[7] = 0;\n counter[8] = 0;\n counterPos--;\n } else {\n counterPos++;\n }\n counter[counterPos] = 1;\n isWhite = !isWhite;\n }\n }\n return null;\n};\n\nexport default Code39Reader;\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/code_39_reader.js\n **/","import Code39Reader from './code_39_reader';\n\nfunction Code39VINReader() {\n Code39Reader.call(this);\n}\n\nvar patterns = {\n IOQ: /[IOQ]/g,\n AZ09: /[A-Z0-9]{17}/\n};\n\nCode39VINReader.prototype = Object.create(Code39Reader.prototype);\nCode39VINReader.prototype.constructor = Code39VINReader;\n\n// Cribbed from:\n// /~https://github.com/zxing/zxing/blob/master/core/src/main/java/com/google/zxing/client/result/VINResultParser.java\nCode39VINReader.prototype._decode = function() {\n var result = Code39Reader.prototype._decode.apply(this);\n if (!result) {\n return null;\n }\n\n var code = result.code;\n\n if (!code) {\n return;\n }\n\n code = code.replace(patterns.IOQ, '');\n\n if (!code.match(patterns.AZ09)) {\n console.log('Failed AZ09 pattern code:', code);\n return null;\n }\n\n if (!this._checkChecksum(code)) {\n return null;\n }\n\n result.code = code;\n return result;\n};\n\nCode39VINReader.prototype._checkChecksum = function(code) {\n // TODO\n return !!code;\n};\n\nexport default Code39VINReader;\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/code_39_vin_reader.js\n **/","import BarcodeReader from './barcode_reader';\n\nfunction CodabarReader() {\n BarcodeReader.call(this);\n this._counters = [];\n}\n\nvar properties = {\n ALPHABETH_STRING: {value: \"0123456789-$:/.+ABCD\"},\n ALPHABET: {value: [48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 45, 36, 58, 47, 46, 43, 65, 66, 67, 68]},\n CHARACTER_ENCODINGS: {value: [0x003, 0x006, 0x009, 0x060, 0x012, 0x042, 0x021, 0x024, 0x030, 0x048, 0x00c, 0x018, 0x045, 0x051, 0x054, 0x015, 0x01A, 0x029, 0x00B, 0x00E]},\n START_END: {value: [0x01A, 0x029, 0x00B, 0x00E]},\n MIN_ENCODED_CHARS: {value: 4},\n MAX_ACCEPTABLE: {value: 2.0},\n PADDING: {value: 1.5},\n FORMAT: {value: \"codabar\", writeable: false}\n};\n\nCodabarReader.prototype = Object.create(BarcodeReader.prototype, properties);\nCodabarReader.prototype.constructor = CodabarReader;\n\nCodabarReader.prototype._decode = function() {\n var self = this,\n result = [],\n start,\n decodedChar,\n pattern,\n nextStart,\n end;\n\n this._counters = self._fillCounters();\n start = self._findStart();\n if (!start) {\n return null;\n }\n nextStart = start.startCounter;\n\n do {\n pattern = self._toPattern(nextStart);\n if (pattern < 0) {\n return null;\n }\n decodedChar = self._patternToChar(pattern);\n if (decodedChar < 0){\n return null;\n }\n result.push(decodedChar);\n nextStart += 8;\n if (result.length > 1 && self._isStartEnd(pattern)) {\n break;\n }\n } while(nextStart < self._counters.length);\n\n // verify end\n if ((result.length - 2) < self.MIN_ENCODED_CHARS || !self._isStartEnd(pattern)) {\n return null;\n }\n\n // verify end white space\n if (!self._verifyWhitespace(start.startCounter, nextStart - 8)){\n return null;\n }\n\n if (!self._validateResult(result, start.startCounter)){\n return null;\n }\n\n nextStart = nextStart > self._counters.length ? self._counters.length : nextStart;\n end = start.start + self._sumCounters(start.startCounter, nextStart - 8);\n\n return {\n code : result.join(\"\"),\n start : start.start,\n end : end,\n startInfo : start,\n decodedCodes : result\n };\n};\n\nCodabarReader.prototype._verifyWhitespace = function(startCounter, endCounter) {\n if ((startCounter - 1 <= 0) || this._counters[startCounter-1] >= (this._calculatePatternLength(startCounter) / 2.0)) {\n if ((endCounter + 8 >= this._counters.length) || this._counters[endCounter+7] >= (this._calculatePatternLength(endCounter) / 2.0)) {\n return true;\n }\n }\n return false;\n};\n\nCodabarReader.prototype._calculatePatternLength = function(offset) {\n var i,\n sum = 0;\n\n for (i = offset; i < offset + 7; i++) {\n sum += this._counters[i];\n }\n\n return sum;\n};\n\nCodabarReader.prototype._thresholdResultPattern = function(result, startCounter){\n var self = this,\n categorization = {\n space: {\n narrow: { size: 0, counts: 0, min: 0, max: Number.MAX_VALUE},\n wide: {size: 0, counts: 0, min: 0, max: Number.MAX_VALUE}\n },\n bar: {\n narrow: { size: 0, counts: 0, min: 0, max: Number.MAX_VALUE},\n wide: { size: 0, counts: 0, min: 0, max: Number.MAX_VALUE}\n }\n },\n kind,\n cat,\n i,\n j,\n pos = startCounter,\n pattern;\n\n for (i = 0; i < result.length; i++){\n pattern = self._charToPattern(result[i]);\n for (j = 6; j >= 0; j--) {\n kind = (j & 1) === 2 ? categorization.bar : categorization.space;\n cat = (pattern & 1) === 1 ? kind.wide : kind.narrow;\n cat.size += self._counters[pos + j];\n cat.counts++;\n pattern >>= 1;\n }\n pos += 8;\n }\n\n [\"space\", \"bar\"].forEach(function(key) {\n var kind = categorization[key];\n kind.wide.min = Math.floor((kind.narrow.size/kind.narrow.counts + kind.wide.size / kind.wide.counts) / 2);\n kind.narrow.max = Math.ceil(kind.wide.min);\n kind.wide.max = Math.ceil((kind.wide.size * self.MAX_ACCEPTABLE + self.PADDING) / kind.wide.counts);\n });\n\n return categorization;\n};\n\nCodabarReader.prototype._charToPattern = function(char) {\n var self = this,\n charCode = char.charCodeAt(0),\n i;\n\n for (i = 0; i < self.ALPHABET.length; i++) {\n if (self.ALPHABET[i] === charCode){\n return self.CHARACTER_ENCODINGS[i];\n }\n }\n return 0x0;\n};\n\nCodabarReader.prototype._validateResult = function(result, startCounter) {\n var self = this,\n thresholds = self._thresholdResultPattern(result, startCounter),\n i,\n j,\n kind,\n cat,\n size,\n pos = startCounter,\n pattern;\n\n for (i = 0; i < result.length; i++) {\n pattern = self._charToPattern(result[i]);\n for (j = 6; j >= 0; j--) {\n kind = (j & 1) === 0 ? thresholds.bar : thresholds.space;\n cat = (pattern & 1) === 1 ? kind.wide : kind.narrow;\n size = self._counters[pos + j];\n if (size < cat.min || size > cat.max) {\n return false;\n }\n pattern >>= 1;\n }\n pos += 8;\n }\n return true;\n};\n\nCodabarReader.prototype._patternToChar = function(pattern) {\n var i,\n self = this;\n\n for (i = 0; i < self.CHARACTER_ENCODINGS.length; i++) {\n if (self.CHARACTER_ENCODINGS[i] === pattern) {\n return String.fromCharCode(self.ALPHABET[i]);\n }\n }\n return -1;\n};\n\nCodabarReader.prototype._computeAlternatingThreshold = function(offset, end) {\n var i,\n min = Number.MAX_VALUE,\n max = 0,\n counter;\n\n for (i = offset; i < end; i += 2){\n counter = this._counters[i];\n if (counter > max) {\n max = counter;\n }\n if (counter < min) {\n min = counter;\n }\n }\n\n return ((min + max) / 2.0) | 0;\n};\n\nCodabarReader.prototype._toPattern = function(offset) {\n var numCounters = 7,\n end = offset + numCounters,\n barThreshold,\n spaceThreshold,\n bitmask = 1 << (numCounters - 1),\n pattern = 0,\n i,\n threshold;\n\n if (end > this._counters.length) {\n return -1;\n }\n\n barThreshold = this._computeAlternatingThreshold(offset, end);\n spaceThreshold = this._computeAlternatingThreshold(offset + 1, end);\n\n for (i = 0; i < numCounters; i++){\n threshold = (i & 1) === 0 ? barThreshold : spaceThreshold;\n if (this._counters[offset + i] > threshold) {\n pattern |= bitmask;\n }\n bitmask >>= 1;\n }\n\n return pattern;\n};\n\nCodabarReader.prototype._isStartEnd = function(pattern) {\n var i;\n\n for (i = 0; i < this.START_END.length; i++) {\n if (this.START_END[i] === pattern) {\n return true;\n }\n }\n return false;\n};\n\nCodabarReader.prototype._sumCounters = function(start, end) {\n var i,\n sum = 0;\n\n for (i = start; i < end; i++) {\n sum += this._counters[i];\n }\n return sum;\n};\n\nCodabarReader.prototype._findStart = function() {\n var self = this,\n i,\n pattern,\n start = self._nextUnset(self._row),\n end;\n\n for (i = 1; i < this._counters.length; i++) {\n pattern = self._toPattern(i);\n if (pattern !== -1 && self._isStartEnd(pattern)) {\n // TODO: Look for whitespace ahead\n start += self._sumCounters(0, i);\n end = start + self._sumCounters(i, i + 8);\n return {\n start: start,\n end: end,\n startCounter: i,\n endCounter: i + 8\n };\n }\n }\n};\n\nexport default CodabarReader;\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/codabar_reader.js\n **/","import EANReader from './ean_reader';\n\nfunction UPCReader() {\n EANReader.call(this);\n}\n\nvar properties = {\n FORMAT: {value: \"upc_a\", writeable: false}\n};\n\nUPCReader.prototype = Object.create(EANReader.prototype, properties);\nUPCReader.prototype.constructor = UPCReader;\n\nUPCReader.prototype._decode = function() {\n var result = EANReader.prototype._decode.call(this);\n\n if (result && result.code && result.code.length === 13 && result.code.charAt(0) === \"0\") {\n\n result.code = result.code.substring(1);\n return result;\n }\n return null;\n};\n\nexport default EANReader;\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/upc_reader.js\n **/","import EANReader from './ean_reader';\n\nfunction EAN8Reader() {\n EANReader.call(this);\n}\n\nvar properties = {\n FORMAT: {value: \"ean_8\", writeable: false}\n};\n\nEAN8Reader.prototype = Object.create(EANReader.prototype, properties);\nEAN8Reader.prototype.constructor = EAN8Reader;\n\nEAN8Reader.prototype._decodePayload = function(code, result, decodedCodes) {\n var i,\n self = this;\n\n for ( i = 0; i < 4; i++) {\n code = self._decodeCode(code.end, self.CODE_G_START);\n if (!code) {\n return null;\n }\n result.push(code.code);\n decodedCodes.push(code);\n }\n\n code = self._findPattern(self.MIDDLE_PATTERN, code.end, true, false);\n if (code === null) {\n return null;\n }\n decodedCodes.push(code);\n\n for ( i = 0; i < 4; i++) {\n code = self._decodeCode(code.end, self.CODE_G_START);\n if (!code) {\n return null;\n }\n decodedCodes.push(code);\n result.push(code.code);\n }\n\n return code;\n};\n\nexport default EAN8Reader;\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/ean_8_reader.js\n **/","import EANReader from './ean_reader';\n\nfunction UPCEReader() {\n EANReader.call(this);\n}\n\nvar properties = {\n CODE_FREQUENCY : {value: [\n [ 56, 52, 50, 49, 44, 38, 35, 42, 41, 37 ],\n [7, 11, 13, 14, 19, 25, 28, 21, 22, 26]]},\n STOP_PATTERN: { value: [1 / 6 * 7, 1 / 6 * 7, 1 / 6 * 7, 1 / 6 * 7, 1 / 6 * 7, 1 / 6 * 7]},\n FORMAT: {value: \"upc_e\", writeable: false}\n};\n\nUPCEReader.prototype = Object.create(EANReader.prototype, properties);\nUPCEReader.prototype.constructor = UPCEReader;\n\nUPCEReader.prototype._decodePayload = function(code, result, decodedCodes) {\n var i,\n self = this,\n codeFrequency = 0x0;\n\n for ( i = 0; i < 6; i++) {\n code = self._decodeCode(code.end);\n if (!code) {\n return null;\n }\n if (code.code >= self.CODE_G_START) {\n code.code = code.code - self.CODE_G_START;\n codeFrequency |= 1 << (5 - i);\n }\n result.push(code.code);\n decodedCodes.push(code);\n }\n if (!self._determineParity(codeFrequency, result)) {\n return null;\n }\n\n return code;\n};\n\nUPCEReader.prototype._determineParity = function(codeFrequency, result) {\n var self =this,\n i,\n nrSystem;\n\n for (nrSystem = 0; nrSystem < self.CODE_FREQUENCY.length; nrSystem++){\n for ( i = 0; i < self.CODE_FREQUENCY[nrSystem].length; i++) {\n if (codeFrequency === self.CODE_FREQUENCY[nrSystem][i]) {\n result.unshift(nrSystem);\n result.push(i);\n return true;\n }\n }\n }\n return false;\n};\n\nUPCEReader.prototype._convertToUPCA = function(result) {\n var upca = [result[0]],\n lastDigit = result[result.length - 2];\n\n if (lastDigit <= 2) {\n upca = upca.concat(result.slice(1, 3))\n .concat([lastDigit, 0, 0, 0, 0])\n .concat(result.slice(3, 6));\n } else if (lastDigit === 3) {\n upca = upca.concat(result.slice(1, 4))\n .concat([0 ,0, 0, 0, 0])\n .concat(result.slice(4,6));\n } else if (lastDigit === 4) {\n upca = upca.concat(result.slice(1, 5))\n .concat([0, 0, 0, 0, 0, result[5]]);\n } else {\n upca = upca.concat(result.slice(1, 6))\n .concat([0, 0, 0, 0, lastDigit]);\n }\n\n upca.push(result[result.length - 1]);\n return upca;\n};\n\nUPCEReader.prototype._checksum = function(result) {\n return EANReader.prototype._checksum.call(this, this._convertToUPCA(result));\n};\n\nUPCEReader.prototype._findEnd = function(offset, isWhite) {\n isWhite = true;\n return EANReader.prototype._findEnd.call(this, offset, isWhite);\n};\n\nUPCEReader.prototype._verifyTrailingWhitespace = function(endInfo) {\n var self = this,\n trailingWhitespaceEnd;\n\n trailingWhitespaceEnd = endInfo.end + ((endInfo.end - endInfo.start)/2);\n if (trailingWhitespaceEnd < self._row.length) {\n if (self._matchRange(endInfo.end, trailingWhitespaceEnd, 0)) {\n return endInfo;\n }\n }\n};\n\nexport default UPCEReader;\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/upc_e_reader.js\n **/","import BarcodeReader from './barcode_reader';\nconst merge = require('lodash/object/merge');\n\nfunction I2of5Reader(opts) {\n opts = merge(getDefaulConfig(), opts);\n BarcodeReader.call(this, opts);\n this.barSpaceRatio = [1, 1];\n if (opts.normalizeBarSpaceWidth) {\n this.SINGLE_CODE_ERROR = 0.38;\n this.AVG_CODE_ERROR = 0.09;\n }\n}\n\nfunction getDefaulConfig() {\n var config = {};\n\n Object.keys(I2of5Reader.CONFIG_KEYS).forEach(function(key) {\n config[key] = I2of5Reader.CONFIG_KEYS[key]['default'];\n });\n return config;\n}\n\nvar N = 1,\n W = 3,\n properties = {\n MODULO : {value: 10},\n START_PATTERN : {value: [N*2.5, N*2.5, N*2.5, N*2.5]},\n STOP_PATTERN : {value: [N*2, N*2, W*2]},\n CODE_PATTERN : {value: [\n [N, N, W, W, N],\n [W, N, N, N, W],\n [N, W, N, N, W],\n [W, W, N, N, N],\n [N, N, W, N, W],\n [W, N, W, N, N],\n [N, W, W, N, N],\n [N, N, N, W, W],\n [W, N, N, W, N],\n [N, W, N, W, N]\n ]},\n SINGLE_CODE_ERROR: {value: 0.78, writable: true},\n AVG_CODE_ERROR: {value: 0.38, writable: true},\n MAX_CORRECTION_FACTOR: {value: 5},\n FORMAT: {value: \"i2of5\"}\n};\n\nI2of5Reader.prototype = Object.create(BarcodeReader.prototype, properties);\nI2of5Reader.prototype.constructor = I2of5Reader;\n\nI2of5Reader.prototype._matchPattern = function(counter, code) {\n if (this.config.normalizeBarSpaceWidth) {\n var i,\n counterSum = [0, 0],\n codeSum = [0, 0],\n correction = [0, 0],\n correctionRatio = this.MAX_CORRECTION_FACTOR,\n correctionRatioInverse = 1 / correctionRatio;\n\n for (i = 0; i < counter.length; i++) {\n counterSum[i % 2] += counter[i];\n codeSum[i % 2] += code[i];\n }\n correction[0] = codeSum[0] / counterSum[0];\n correction[1] = codeSum[1] / counterSum[1];\n\n correction[0] = Math.max(Math.min(correction[0], correctionRatio), correctionRatioInverse);\n correction[1] = Math.max(Math.min(correction[1], correctionRatio), correctionRatioInverse);\n this.barSpaceRatio = correction;\n for (i = 0; i < counter.length; i++) {\n counter[i] *= this.barSpaceRatio[i % 2];\n }\n }\n return BarcodeReader.prototype._matchPattern.call(this, counter, code);\n};\n\nI2of5Reader.prototype._findPattern = function(pattern, offset, isWhite, tryHarder) {\n var counter = [],\n self = this,\n i,\n counterPos = 0,\n bestMatch = {\n error : Number.MAX_VALUE,\n code : -1,\n start : 0,\n end : 0\n },\n error,\n j,\n sum,\n normalized,\n epsilon = self.AVG_CODE_ERROR;\n\n isWhite = isWhite || false;\n tryHarder = tryHarder || false;\n\n if (!offset) {\n offset = self._nextSet(self._row);\n }\n\n for ( i = 0; i < pattern.length; i++) {\n counter[i] = 0;\n }\n\n for ( i = offset; i < self._row.length; i++) {\n if (self._row[i] ^ isWhite) {\n counter[counterPos]++;\n } else {\n if (counterPos === counter.length - 1) {\n sum = 0;\n for ( j = 0; j < counter.length; j++) {\n sum += counter[j];\n }\n normalized = self._normalize(counter);\n if (normalized) {\n error = self._matchPattern(normalized, pattern);\n\n if (error < epsilon) {\n bestMatch.error = error;\n bestMatch.start = i - sum;\n bestMatch.end = i;\n return bestMatch;\n }\n }\n if (tryHarder) {\n for (j = 0; j < counter.length - 2; j++) {\n counter[j] = counter[j + 2];\n }\n counter[counter.length - 2] = 0;\n counter[counter.length - 1] = 0;\n counterPos--;\n } else {\n return null;\n }\n } else {\n counterPos++;\n }\n counter[counterPos] = 1;\n isWhite = !isWhite;\n }\n }\n return null;\n};\n\nI2of5Reader.prototype._findStart = function() {\n var self = this,\n leadingWhitespaceStart,\n offset = self._nextSet(self._row),\n startInfo,\n narrowBarWidth = 1;\n\n while(!startInfo) {\n startInfo = self._findPattern(self.START_PATTERN, offset, false, true);\n if (!startInfo) {\n return null;\n }\n narrowBarWidth = Math.floor((startInfo.end - startInfo.start) / 4);\n leadingWhitespaceStart = startInfo.start - narrowBarWidth*10;\n if (leadingWhitespaceStart >= 0) {\n if (self._matchRange(leadingWhitespaceStart, startInfo.start, 0)) {\n return startInfo;\n }\n }\n offset = startInfo.end;\n startInfo = null;\n }\n};\n\nI2of5Reader.prototype._verifyTrailingWhitespace = function(endInfo) {\n var self = this,\n trailingWhitespaceEnd;\n\n trailingWhitespaceEnd = endInfo.end + ((endInfo.end - endInfo.start) / 2);\n if (trailingWhitespaceEnd < self._row.length) {\n if (self._matchRange(endInfo.end, trailingWhitespaceEnd, 0)) {\n return endInfo;\n }\n }\n return null;\n};\n\nI2of5Reader.prototype._findEnd = function() {\n var self = this,\n endInfo,\n tmp;\n\n self._row.reverse();\n endInfo = self._findPattern(self.STOP_PATTERN);\n self._row.reverse();\n\n if (endInfo === null) {\n return null;\n }\n\n // reverse numbers\n tmp = endInfo.start;\n endInfo.start = self._row.length - endInfo.end;\n endInfo.end = self._row.length - tmp;\n\n return endInfo !== null ? self._verifyTrailingWhitespace(endInfo) : null;\n};\n\nI2of5Reader.prototype._decodePair = function(counterPair) {\n var i,\n code,\n codes = [],\n self = this;\n\n for (i = 0; i < counterPair.length; i++) {\n code = self._decodeCode(counterPair[i]);\n if (!code) {\n return null;\n }\n codes.push(code);\n }\n return codes;\n};\n\nI2of5Reader.prototype._decodeCode = function(counter) {\n var j,\n self = this,\n sum = 0,\n normalized,\n error,\n epsilon = self.AVG_CODE_ERROR,\n code,\n bestMatch = {\n error : Number.MAX_VALUE,\n code : -1,\n start : 0,\n end : 0\n };\n\n for ( j = 0; j < counter.length; j++) {\n sum += counter[j];\n }\n normalized = self._normalize(counter);\n if (normalized) {\n for (code = 0; code < self.CODE_PATTERN.length; code++) {\n error = self._matchPattern(normalized, self.CODE_PATTERN[code]);\n if (error < bestMatch.error) {\n bestMatch.code = code;\n bestMatch.error = error;\n }\n }\n if (bestMatch.error < epsilon) {\n return bestMatch;\n }\n }\n return null;\n};\n\nI2of5Reader.prototype._decodePayload = function(counters, result, decodedCodes) {\n var i,\n self = this,\n pos = 0,\n counterLength = counters.length,\n counterPair = [[0, 0, 0, 0, 0], [0, 0, 0, 0, 0]],\n codes;\n\n while (pos < counterLength) {\n for (i = 0; i < 5; i++) {\n counterPair[0][i] = counters[pos]*this.barSpaceRatio[0];\n counterPair[1][i] = counters[pos + 1]*this.barSpaceRatio[1];\n pos += 2;\n }\n codes = self._decodePair(counterPair);\n if (!codes) {\n return null;\n }\n for (i = 0; i < codes.length; i++) {\n result.push(codes[i].code + \"\");\n decodedCodes.push(codes[i]);\n }\n }\n return codes;\n};\n\nI2of5Reader.prototype._verifyCounterLength = function(counters) {\n return (counters.length % 10 === 0);\n};\n\nI2of5Reader.prototype._decode = function() {\n var startInfo,\n endInfo,\n self = this,\n code,\n result = [],\n decodedCodes = [],\n counters;\n\n startInfo = self._findStart();\n if (!startInfo) {\n return null;\n }\n decodedCodes.push(startInfo);\n\n endInfo = self._findEnd();\n if (!endInfo) {\n return null;\n }\n\n counters = self._fillCounters(startInfo.end, endInfo.start, false);\n if (!self._verifyCounterLength(counters)) {\n return null;\n }\n code = self._decodePayload(counters, result, decodedCodes);\n if (!code) {\n return null;\n }\n if (result.length % 2 !== 0 ||\n result.length < 6) {\n return null;\n }\n\n decodedCodes.push(endInfo);\n return {\n code : result.join(\"\"),\n start : startInfo.start,\n end : endInfo.end,\n startInfo : startInfo,\n decodedCodes : decodedCodes\n };\n};\n\nI2of5Reader.CONFIG_KEYS = {\n normalizeBarSpaceWidth: {\n 'type': 'boolean',\n 'default': false,\n 'description': 'If true, the reader tries to normalize the' +\n 'width-difference between bars and spaces'\n }\n};\n\nexport default I2of5Reader;\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/i2of5_reader.js\n **/","var baseMerge = require('../internal/baseMerge'),\n createAssigner = require('../internal/createAssigner');\n\n/**\n * Recursively merges own enumerable properties of the source object(s), that\n * don't resolve to `undefined` into the destination object. Subsequent sources\n * overwrite property assignments of previous sources. If `customizer` is\n * provided it's invoked to produce the merged values of the destination and\n * source properties. If `customizer` returns `undefined` merging is handled\n * by the method instead. The `customizer` is bound to `thisArg` and invoked\n * with five arguments: (objectValue, sourceValue, key, object, source).\n *\n * @static\n * @memberOf _\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} [sources] The source objects.\n * @param {Function} [customizer] The function to customize assigned values.\n * @param {*} [thisArg] The `this` binding of `customizer`.\n * @returns {Object} Returns `object`.\n * @example\n *\n * var users = {\n * 'data': [{ 'user': 'barney' }, { 'user': 'fred' }]\n * };\n *\n * var ages = {\n * 'data': [{ 'age': 36 }, { 'age': 40 }]\n * };\n *\n * _.merge(users, ages);\n * // => { 'data': [{ 'user': 'barney', 'age': 36 }, { 'user': 'fred', 'age': 40 }] }\n *\n * // using a customizer callback\n * var object = {\n * 'fruits': ['apple'],\n * 'vegetables': ['beet']\n * };\n *\n * var other = {\n * 'fruits': ['banana'],\n * 'vegetables': ['carrot']\n * };\n *\n * _.merge(object, other, function(a, b) {\n * if (_.isArray(a)) {\n * return a.concat(b);\n * }\n * });\n * // => { 'fruits': ['apple', 'banana'], 'vegetables': ['beet', 'carrot'] }\n */\nvar merge = createAssigner(baseMerge);\n\nmodule.exports = merge;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/object/merge.js\n ** module id = 37\n ** module chunks = 0\n **/","var arrayEach = require('./arrayEach'),\n baseMergeDeep = require('./baseMergeDeep'),\n isArray = require('../lang/isArray'),\n isArrayLike = require('./isArrayLike'),\n isObject = require('../lang/isObject'),\n isObjectLike = require('./isObjectLike'),\n isTypedArray = require('../lang/isTypedArray'),\n keys = require('../object/keys');\n\n/**\n * The base implementation of `_.merge` without support for argument juggling,\n * multiple sources, and `this` binding `customizer` functions.\n *\n * @private\n * @param {Object} object The destination object.\n * @param {Object} source The source object.\n * @param {Function} [customizer] The function to customize merged values.\n * @param {Array} [stackA=[]] Tracks traversed source objects.\n * @param {Array} [stackB=[]] Associates values with source counterparts.\n * @returns {Object} Returns `object`.\n */\nfunction baseMerge(object, source, customizer, stackA, stackB) {\n if (!isObject(object)) {\n return object;\n }\n var isSrcArr = isArrayLike(source) && (isArray(source) || isTypedArray(source)),\n props = isSrcArr ? undefined : keys(source);\n\n arrayEach(props || source, function(srcValue, key) {\n if (props) {\n key = srcValue;\n srcValue = source[key];\n }\n if (isObjectLike(srcValue)) {\n stackA || (stackA = []);\n stackB || (stackB = []);\n baseMergeDeep(object, source, key, baseMerge, customizer, stackA, stackB);\n }\n else {\n var value = object[key],\n result = customizer ? customizer(value, srcValue, key, object, source) : undefined,\n isCommon = result === undefined;\n\n if (isCommon) {\n result = srcValue;\n }\n if ((result !== undefined || (isSrcArr && !(key in object))) &&\n (isCommon || (result === result ? (result !== value) : (value === value)))) {\n object[key] = result;\n }\n }\n });\n return object;\n}\n\nmodule.exports = baseMerge;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/internal/baseMerge.js\n ** module id = 38\n ** module chunks = 0\n **/","/**\n * A specialized version of `_.forEach` for arrays without support for callback\n * shorthands and `this` binding.\n *\n * @private\n * @param {Array} array The array to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Array} Returns `array`.\n */\nfunction arrayEach(array, iteratee) {\n var index = -1,\n length = array.length;\n\n while (++index < length) {\n if (iteratee(array[index], index, array) === false) {\n break;\n }\n }\n return array;\n}\n\nmodule.exports = arrayEach;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/internal/arrayEach.js\n ** module id = 39\n ** module chunks = 0\n **/","var arrayCopy = require('./arrayCopy'),\n isArguments = require('../lang/isArguments'),\n isArray = require('../lang/isArray'),\n isArrayLike = require('./isArrayLike'),\n isPlainObject = require('../lang/isPlainObject'),\n isTypedArray = require('../lang/isTypedArray'),\n toPlainObject = require('../lang/toPlainObject');\n\n/**\n * A specialized version of `baseMerge` for arrays and objects which performs\n * deep merges and tracks traversed objects enabling objects with circular\n * references to be merged.\n *\n * @private\n * @param {Object} object The destination object.\n * @param {Object} source The source object.\n * @param {string} key The key of the value to merge.\n * @param {Function} mergeFunc The function to merge values.\n * @param {Function} [customizer] The function to customize merged values.\n * @param {Array} [stackA=[]] Tracks traversed source objects.\n * @param {Array} [stackB=[]] Associates values with source counterparts.\n * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.\n */\nfunction baseMergeDeep(object, source, key, mergeFunc, customizer, stackA, stackB) {\n var length = stackA.length,\n srcValue = source[key];\n\n while (length--) {\n if (stackA[length] == srcValue) {\n object[key] = stackB[length];\n return;\n }\n }\n var value = object[key],\n result = customizer ? customizer(value, srcValue, key, object, source) : undefined,\n isCommon = result === undefined;\n\n if (isCommon) {\n result = srcValue;\n if (isArrayLike(srcValue) && (isArray(srcValue) || isTypedArray(srcValue))) {\n result = isArray(value)\n ? value\n : (isArrayLike(value) ? arrayCopy(value) : []);\n }\n else if (isPlainObject(srcValue) || isArguments(srcValue)) {\n result = isArguments(value)\n ? toPlainObject(value)\n : (isPlainObject(value) ? value : {});\n }\n else {\n isCommon = false;\n }\n }\n // Add the source value to the stack of traversed objects and associate\n // it with its merged value.\n stackA.push(srcValue);\n stackB.push(result);\n\n if (isCommon) {\n // Recursively merge objects and arrays (susceptible to call stack limits).\n object[key] = mergeFunc(result, srcValue, customizer, stackA, stackB);\n } else if (result === result ? (result !== value) : (value === value)) {\n object[key] = result;\n }\n}\n\nmodule.exports = baseMergeDeep;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/internal/baseMergeDeep.js\n ** module id = 40\n ** module chunks = 0\n **/","/**\n * Copies the values of `source` to `array`.\n *\n * @private\n * @param {Array} source The array to copy values from.\n * @param {Array} [array=[]] The array to copy values to.\n * @returns {Array} Returns `array`.\n */\nfunction arrayCopy(source, array) {\n var index = -1,\n length = source.length;\n\n array || (array = Array(length));\n while (++index < length) {\n array[index] = source[index];\n }\n return array;\n}\n\nmodule.exports = arrayCopy;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/internal/arrayCopy.js\n ** module id = 41\n ** module chunks = 0\n **/","var isArrayLike = require('../internal/isArrayLike'),\n isObjectLike = require('../internal/isObjectLike');\n\n/** Used for native method references. */\nvar objectProto = Object.prototype;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/** Native method references. */\nvar propertyIsEnumerable = objectProto.propertyIsEnumerable;\n\n/**\n * Checks if `value` is classified as an `arguments` object.\n *\n * @static\n * @memberOf _\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.\n * @example\n *\n * _.isArguments(function() { return arguments; }());\n * // => true\n *\n * _.isArguments([1, 2, 3]);\n * // => false\n */\nfunction isArguments(value) {\n return isObjectLike(value) && isArrayLike(value) &&\n hasOwnProperty.call(value, 'callee') && !propertyIsEnumerable.call(value, 'callee');\n}\n\nmodule.exports = isArguments;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/lang/isArguments.js\n ** module id = 42\n ** module chunks = 0\n **/","var getLength = require('./getLength'),\n isLength = require('./isLength');\n\n/**\n * Checks if `value` is array-like.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is array-like, else `false`.\n */\nfunction isArrayLike(value) {\n return value != null && isLength(getLength(value));\n}\n\nmodule.exports = isArrayLike;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/internal/isArrayLike.js\n ** module id = 43\n ** module chunks = 0\n **/","var baseProperty = require('./baseProperty');\n\n/**\n * Gets the \"length\" property value of `object`.\n *\n * **Note:** This function is used to avoid a [JIT bug](https://bugs.webkit.org/show_bug.cgi?id=142792)\n * that affects Safari on at least iOS 8.1-8.3 ARM64.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {*} Returns the \"length\" value.\n */\nvar getLength = baseProperty('length');\n\nmodule.exports = getLength;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/internal/getLength.js\n ** module id = 44\n ** module chunks = 0\n **/","/**\n * The base implementation of `_.property` without support for deep paths.\n *\n * @private\n * @param {string} key The key of the property to get.\n * @returns {Function} Returns the new function.\n */\nfunction baseProperty(key) {\n return function(object) {\n return object == null ? undefined : object[key];\n };\n}\n\nmodule.exports = baseProperty;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/internal/baseProperty.js\n ** module id = 45\n ** module chunks = 0\n **/","/**\n * Used as the [maximum length](http://ecma-international.org/ecma-262/6.0/#sec-number.max_safe_integer)\n * of an array-like value.\n */\nvar MAX_SAFE_INTEGER = 9007199254740991;\n\n/**\n * Checks if `value` is a valid array-like length.\n *\n * **Note:** This function is based on [`ToLength`](http://ecma-international.org/ecma-262/6.0/#sec-tolength).\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a valid length, else `false`.\n */\nfunction isLength(value) {\n return typeof value == 'number' && value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER;\n}\n\nmodule.exports = isLength;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/internal/isLength.js\n ** module id = 46\n ** module chunks = 0\n **/","/**\n * Checks if `value` is object-like.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is object-like, else `false`.\n */\nfunction isObjectLike(value) {\n return !!value && typeof value == 'object';\n}\n\nmodule.exports = isObjectLike;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/internal/isObjectLike.js\n ** module id = 47\n ** module chunks = 0\n **/","var getNative = require('../internal/getNative'),\n isLength = require('../internal/isLength'),\n isObjectLike = require('../internal/isObjectLike');\n\n/** `Object#toString` result references. */\nvar arrayTag = '[object Array]';\n\n/** Used for native method references. */\nvar objectProto = Object.prototype;\n\n/**\n * Used to resolve the [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)\n * of values.\n */\nvar objToString = objectProto.toString;\n\n/* Native method references for those with the same name as other `lodash` methods. */\nvar nativeIsArray = getNative(Array, 'isArray');\n\n/**\n * Checks if `value` is classified as an `Array` object.\n *\n * @static\n * @memberOf _\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.\n * @example\n *\n * _.isArray([1, 2, 3]);\n * // => true\n *\n * _.isArray(function() { return arguments; }());\n * // => false\n */\nvar isArray = nativeIsArray || function(value) {\n return isObjectLike(value) && isLength(value.length) && objToString.call(value) == arrayTag;\n};\n\nmodule.exports = isArray;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/lang/isArray.js\n ** module id = 48\n ** module chunks = 0\n **/","var isNative = require('../lang/isNative');\n\n/**\n * Gets the native function at `key` of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {string} key The key of the method to get.\n * @returns {*} Returns the function if it's native, else `undefined`.\n */\nfunction getNative(object, key) {\n var value = object == null ? undefined : object[key];\n return isNative(value) ? value : undefined;\n}\n\nmodule.exports = getNative;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/internal/getNative.js\n ** module id = 49\n ** module chunks = 0\n **/","var isFunction = require('./isFunction'),\n isObjectLike = require('../internal/isObjectLike');\n\n/** Used to detect host constructors (Safari > 5). */\nvar reIsHostCtor = /^\\[object .+?Constructor\\]$/;\n\n/** Used for native method references. */\nvar objectProto = Object.prototype;\n\n/** Used to resolve the decompiled source of functions. */\nvar fnToString = Function.prototype.toString;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/** Used to detect if a method is native. */\nvar reIsNative = RegExp('^' +\n fnToString.call(hasOwnProperty).replace(/[\\\\^$.*+?()[\\]{}|]/g, '\\\\$&')\n .replace(/hasOwnProperty|(function).*?(?=\\\\\\()| for .+?(?=\\\\\\])/g, '$1.*?') + '$'\n);\n\n/**\n * Checks if `value` is a native function.\n *\n * @static\n * @memberOf _\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a native function, else `false`.\n * @example\n *\n * _.isNative(Array.prototype.push);\n * // => true\n *\n * _.isNative(_);\n * // => false\n */\nfunction isNative(value) {\n if (value == null) {\n return false;\n }\n if (isFunction(value)) {\n return reIsNative.test(fnToString.call(value));\n }\n return isObjectLike(value) && reIsHostCtor.test(value);\n}\n\nmodule.exports = isNative;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/lang/isNative.js\n ** module id = 50\n ** module chunks = 0\n **/","var isObject = require('./isObject');\n\n/** `Object#toString` result references. */\nvar funcTag = '[object Function]';\n\n/** Used for native method references. */\nvar objectProto = Object.prototype;\n\n/**\n * Used to resolve the [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)\n * of values.\n */\nvar objToString = objectProto.toString;\n\n/**\n * Checks if `value` is classified as a `Function` object.\n *\n * @static\n * @memberOf _\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.\n * @example\n *\n * _.isFunction(_);\n * // => true\n *\n * _.isFunction(/abc/);\n * // => false\n */\nfunction isFunction(value) {\n // The use of `Object#toString` avoids issues with the `typeof` operator\n // in older versions of Chrome and Safari which return 'function' for regexes\n // and Safari 8 which returns 'object' for typed array constructors.\n return isObject(value) && objToString.call(value) == funcTag;\n}\n\nmodule.exports = isFunction;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/lang/isFunction.js\n ** module id = 51\n ** module chunks = 0\n **/","/**\n * Checks if `value` is the [language type](https://es5.github.io/#x8) of `Object`.\n * (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)\n *\n * @static\n * @memberOf _\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an object, else `false`.\n * @example\n *\n * _.isObject({});\n * // => true\n *\n * _.isObject([1, 2, 3]);\n * // => true\n *\n * _.isObject(1);\n * // => false\n */\nfunction isObject(value) {\n // Avoid a V8 JIT bug in Chrome 19-20.\n // See https://code.google.com/p/v8/issues/detail?id=2291 for more details.\n var type = typeof value;\n return !!value && (type == 'object' || type == 'function');\n}\n\nmodule.exports = isObject;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/lang/isObject.js\n ** module id = 52\n ** module chunks = 0\n **/","var baseForIn = require('../internal/baseForIn'),\n isArguments = require('./isArguments'),\n isObjectLike = require('../internal/isObjectLike');\n\n/** `Object#toString` result references. */\nvar objectTag = '[object Object]';\n\n/** Used for native method references. */\nvar objectProto = Object.prototype;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/**\n * Used to resolve the [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)\n * of values.\n */\nvar objToString = objectProto.toString;\n\n/**\n * Checks if `value` is a plain object, that is, an object created by the\n * `Object` constructor or one with a `[[Prototype]]` of `null`.\n *\n * **Note:** This method assumes objects created by the `Object` constructor\n * have no inherited enumerable properties.\n *\n * @static\n * @memberOf _\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a plain object, else `false`.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * }\n *\n * _.isPlainObject(new Foo);\n * // => false\n *\n * _.isPlainObject([1, 2, 3]);\n * // => false\n *\n * _.isPlainObject({ 'x': 0, 'y': 0 });\n * // => true\n *\n * _.isPlainObject(Object.create(null));\n * // => true\n */\nfunction isPlainObject(value) {\n var Ctor;\n\n // Exit early for non `Object` objects.\n if (!(isObjectLike(value) && objToString.call(value) == objectTag && !isArguments(value)) ||\n (!hasOwnProperty.call(value, 'constructor') && (Ctor = value.constructor, typeof Ctor == 'function' && !(Ctor instanceof Ctor)))) {\n return false;\n }\n // IE < 9 iterates inherited properties before own properties. If the first\n // iterated property is an object's own property then there are no inherited\n // enumerable properties.\n var result;\n // In most environments an object's own properties are iterated before\n // its inherited properties. If the last iterated property is an object's\n // own property then there are no inherited enumerable properties.\n baseForIn(value, function(subValue, key) {\n result = key;\n });\n return result === undefined || hasOwnProperty.call(value, result);\n}\n\nmodule.exports = isPlainObject;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/lang/isPlainObject.js\n ** module id = 53\n ** module chunks = 0\n **/","var baseFor = require('./baseFor'),\n keysIn = require('../object/keysIn');\n\n/**\n * The base implementation of `_.forIn` without support for callback\n * shorthands and `this` binding.\n *\n * @private\n * @param {Object} object The object to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Object} Returns `object`.\n */\nfunction baseForIn(object, iteratee) {\n return baseFor(object, iteratee, keysIn);\n}\n\nmodule.exports = baseForIn;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/internal/baseForIn.js\n ** module id = 54\n ** module chunks = 0\n **/","var createBaseFor = require('./createBaseFor');\n\n/**\n * The base implementation of `baseForIn` and `baseForOwn` which iterates\n * over `object` properties returned by `keysFunc` invoking `iteratee` for\n * each property. Iteratee functions may exit iteration early by explicitly\n * returning `false`.\n *\n * @private\n * @param {Object} object The object to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @param {Function} keysFunc The function to get the keys of `object`.\n * @returns {Object} Returns `object`.\n */\nvar baseFor = createBaseFor();\n\nmodule.exports = baseFor;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/internal/baseFor.js\n ** module id = 55\n ** module chunks = 0\n **/","var toObject = require('./toObject');\n\n/**\n * Creates a base function for `_.forIn` or `_.forInRight`.\n *\n * @private\n * @param {boolean} [fromRight] Specify iterating from right to left.\n * @returns {Function} Returns the new base function.\n */\nfunction createBaseFor(fromRight) {\n return function(object, iteratee, keysFunc) {\n var iterable = toObject(object),\n props = keysFunc(object),\n length = props.length,\n index = fromRight ? length : -1;\n\n while ((fromRight ? index-- : ++index < length)) {\n var key = props[index];\n if (iteratee(iterable[key], key, iterable) === false) {\n break;\n }\n }\n return object;\n };\n}\n\nmodule.exports = createBaseFor;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/internal/createBaseFor.js\n ** module id = 56\n ** module chunks = 0\n **/","var isObject = require('../lang/isObject');\n\n/**\n * Converts `value` to an object if it's not one.\n *\n * @private\n * @param {*} value The value to process.\n * @returns {Object} Returns the object.\n */\nfunction toObject(value) {\n return isObject(value) ? value : Object(value);\n}\n\nmodule.exports = toObject;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/internal/toObject.js\n ** module id = 57\n ** module chunks = 0\n **/","var isArguments = require('../lang/isArguments'),\n isArray = require('../lang/isArray'),\n isIndex = require('../internal/isIndex'),\n isLength = require('../internal/isLength'),\n isObject = require('../lang/isObject');\n\n/** Used for native method references. */\nvar objectProto = Object.prototype;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/**\n * Creates an array of the own and inherited enumerable property names of `object`.\n *\n * **Note:** Non-object values are coerced to objects.\n *\n * @static\n * @memberOf _\n * @category Object\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.keysIn(new Foo);\n * // => ['a', 'b', 'c'] (iteration order is not guaranteed)\n */\nfunction keysIn(object) {\n if (object == null) {\n return [];\n }\n if (!isObject(object)) {\n object = Object(object);\n }\n var length = object.length;\n length = (length && isLength(length) &&\n (isArray(object) || isArguments(object)) && length) || 0;\n\n var Ctor = object.constructor,\n index = -1,\n isProto = typeof Ctor == 'function' && Ctor.prototype === object,\n result = Array(length),\n skipIndexes = length > 0;\n\n while (++index < length) {\n result[index] = (index + '');\n }\n for (var key in object) {\n if (!(skipIndexes && isIndex(key, length)) &&\n !(key == 'constructor' && (isProto || !hasOwnProperty.call(object, key)))) {\n result.push(key);\n }\n }\n return result;\n}\n\nmodule.exports = keysIn;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/object/keysIn.js\n ** module id = 58\n ** module chunks = 0\n **/","/** Used to detect unsigned integer values. */\nvar reIsUint = /^\\d+$/;\n\n/**\n * Used as the [maximum length](http://ecma-international.org/ecma-262/6.0/#sec-number.max_safe_integer)\n * of an array-like value.\n */\nvar MAX_SAFE_INTEGER = 9007199254740991;\n\n/**\n * Checks if `value` is a valid array-like index.\n *\n * @private\n * @param {*} value The value to check.\n * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index.\n * @returns {boolean} Returns `true` if `value` is a valid index, else `false`.\n */\nfunction isIndex(value, length) {\n value = (typeof value == 'number' || reIsUint.test(value)) ? +value : -1;\n length = length == null ? MAX_SAFE_INTEGER : length;\n return value > -1 && value % 1 == 0 && value < length;\n}\n\nmodule.exports = isIndex;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/internal/isIndex.js\n ** module id = 59\n ** module chunks = 0\n **/","var isLength = require('../internal/isLength'),\n isObjectLike = require('../internal/isObjectLike');\n\n/** `Object#toString` result references. */\nvar argsTag = '[object Arguments]',\n arrayTag = '[object Array]',\n boolTag = '[object Boolean]',\n dateTag = '[object Date]',\n errorTag = '[object Error]',\n funcTag = '[object Function]',\n mapTag = '[object Map]',\n numberTag = '[object Number]',\n objectTag = '[object Object]',\n regexpTag = '[object RegExp]',\n setTag = '[object Set]',\n stringTag = '[object String]',\n weakMapTag = '[object WeakMap]';\n\nvar arrayBufferTag = '[object ArrayBuffer]',\n float32Tag = '[object Float32Array]',\n float64Tag = '[object Float64Array]',\n int8Tag = '[object Int8Array]',\n int16Tag = '[object Int16Array]',\n int32Tag = '[object Int32Array]',\n uint8Tag = '[object Uint8Array]',\n uint8ClampedTag = '[object Uint8ClampedArray]',\n uint16Tag = '[object Uint16Array]',\n uint32Tag = '[object Uint32Array]';\n\n/** Used to identify `toStringTag` values of typed arrays. */\nvar typedArrayTags = {};\ntypedArrayTags[float32Tag] = typedArrayTags[float64Tag] =\ntypedArrayTags[int8Tag] = typedArrayTags[int16Tag] =\ntypedArrayTags[int32Tag] = typedArrayTags[uint8Tag] =\ntypedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] =\ntypedArrayTags[uint32Tag] = true;\ntypedArrayTags[argsTag] = typedArrayTags[arrayTag] =\ntypedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] =\ntypedArrayTags[dateTag] = typedArrayTags[errorTag] =\ntypedArrayTags[funcTag] = typedArrayTags[mapTag] =\ntypedArrayTags[numberTag] = typedArrayTags[objectTag] =\ntypedArrayTags[regexpTag] = typedArrayTags[setTag] =\ntypedArrayTags[stringTag] = typedArrayTags[weakMapTag] = false;\n\n/** Used for native method references. */\nvar objectProto = Object.prototype;\n\n/**\n * Used to resolve the [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)\n * of values.\n */\nvar objToString = objectProto.toString;\n\n/**\n * Checks if `value` is classified as a typed array.\n *\n * @static\n * @memberOf _\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.\n * @example\n *\n * _.isTypedArray(new Uint8Array);\n * // => true\n *\n * _.isTypedArray([]);\n * // => false\n */\nfunction isTypedArray(value) {\n return isObjectLike(value) && isLength(value.length) && !!typedArrayTags[objToString.call(value)];\n}\n\nmodule.exports = isTypedArray;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/lang/isTypedArray.js\n ** module id = 60\n ** module chunks = 0\n **/","var baseCopy = require('../internal/baseCopy'),\n keysIn = require('../object/keysIn');\n\n/**\n * Converts `value` to a plain object flattening inherited enumerable\n * properties of `value` to own properties of the plain object.\n *\n * @static\n * @memberOf _\n * @category Lang\n * @param {*} value The value to convert.\n * @returns {Object} Returns the converted plain object.\n * @example\n *\n * function Foo() {\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.assign({ 'a': 1 }, new Foo);\n * // => { 'a': 1, 'b': 2 }\n *\n * _.assign({ 'a': 1 }, _.toPlainObject(new Foo));\n * // => { 'a': 1, 'b': 2, 'c': 3 }\n */\nfunction toPlainObject(value) {\n return baseCopy(value, keysIn(value));\n}\n\nmodule.exports = toPlainObject;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/lang/toPlainObject.js\n ** module id = 61\n ** module chunks = 0\n **/","/**\n * Copies properties of `source` to `object`.\n *\n * @private\n * @param {Object} source The object to copy properties from.\n * @param {Array} props The property names to copy.\n * @param {Object} [object={}] The object to copy properties to.\n * @returns {Object} Returns `object`.\n */\nfunction baseCopy(source, props, object) {\n object || (object = {});\n\n var index = -1,\n length = props.length;\n\n while (++index < length) {\n var key = props[index];\n object[key] = source[key];\n }\n return object;\n}\n\nmodule.exports = baseCopy;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/internal/baseCopy.js\n ** module id = 62\n ** module chunks = 0\n **/","var getNative = require('../internal/getNative'),\n isArrayLike = require('../internal/isArrayLike'),\n isObject = require('../lang/isObject'),\n shimKeys = require('../internal/shimKeys');\n\n/* Native method references for those with the same name as other `lodash` methods. */\nvar nativeKeys = getNative(Object, 'keys');\n\n/**\n * Creates an array of the own enumerable property names of `object`.\n *\n * **Note:** Non-object values are coerced to objects. See the\n * [ES spec](http://ecma-international.org/ecma-262/6.0/#sec-object.keys)\n * for more details.\n *\n * @static\n * @memberOf _\n * @category Object\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.keys(new Foo);\n * // => ['a', 'b'] (iteration order is not guaranteed)\n *\n * _.keys('hi');\n * // => ['0', '1']\n */\nvar keys = !nativeKeys ? shimKeys : function(object) {\n var Ctor = object == null ? undefined : object.constructor;\n if ((typeof Ctor == 'function' && Ctor.prototype === object) ||\n (typeof object != 'function' && isArrayLike(object))) {\n return shimKeys(object);\n }\n return isObject(object) ? nativeKeys(object) : [];\n};\n\nmodule.exports = keys;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/object/keys.js\n ** module id = 63\n ** module chunks = 0\n **/","var isArguments = require('../lang/isArguments'),\n isArray = require('../lang/isArray'),\n isIndex = require('./isIndex'),\n isLength = require('./isLength'),\n keysIn = require('../object/keysIn');\n\n/** Used for native method references. */\nvar objectProto = Object.prototype;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/**\n * A fallback implementation of `Object.keys` which creates an array of the\n * own enumerable property names of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n */\nfunction shimKeys(object) {\n var props = keysIn(object),\n propsLength = props.length,\n length = propsLength && object.length;\n\n var allowIndexes = !!length && isLength(length) &&\n (isArray(object) || isArguments(object));\n\n var index = -1,\n result = [];\n\n while (++index < propsLength) {\n var key = props[index];\n if ((allowIndexes && isIndex(key, length)) || hasOwnProperty.call(object, key)) {\n result.push(key);\n }\n }\n return result;\n}\n\nmodule.exports = shimKeys;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/internal/shimKeys.js\n ** module id = 64\n ** module chunks = 0\n **/","var bindCallback = require('./bindCallback'),\n isIterateeCall = require('./isIterateeCall'),\n restParam = require('../function/restParam');\n\n/**\n * Creates a `_.assign`, `_.defaults`, or `_.merge` function.\n *\n * @private\n * @param {Function} assigner The function to assign values.\n * @returns {Function} Returns the new assigner function.\n */\nfunction createAssigner(assigner) {\n return restParam(function(object, sources) {\n var index = -1,\n length = object == null ? 0 : sources.length,\n customizer = length > 2 ? sources[length - 2] : undefined,\n guard = length > 2 ? sources[2] : undefined,\n thisArg = length > 1 ? sources[length - 1] : undefined;\n\n if (typeof customizer == 'function') {\n customizer = bindCallback(customizer, thisArg, 5);\n length -= 2;\n } else {\n customizer = typeof thisArg == 'function' ? thisArg : undefined;\n length -= (customizer ? 1 : 0);\n }\n if (guard && isIterateeCall(sources[0], sources[1], guard)) {\n customizer = length < 3 ? undefined : customizer;\n length = 1;\n }\n while (++index < length) {\n var source = sources[index];\n if (source) {\n assigner(object, source, customizer);\n }\n }\n return object;\n });\n}\n\nmodule.exports = createAssigner;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/internal/createAssigner.js\n ** module id = 65\n ** module chunks = 0\n **/","var identity = require('../utility/identity');\n\n/**\n * A specialized version of `baseCallback` which only supports `this` binding\n * and specifying the number of arguments to provide to `func`.\n *\n * @private\n * @param {Function} func The function to bind.\n * @param {*} thisArg The `this` binding of `func`.\n * @param {number} [argCount] The number of arguments to provide to `func`.\n * @returns {Function} Returns the callback.\n */\nfunction bindCallback(func, thisArg, argCount) {\n if (typeof func != 'function') {\n return identity;\n }\n if (thisArg === undefined) {\n return func;\n }\n switch (argCount) {\n case 1: return function(value) {\n return func.call(thisArg, value);\n };\n case 3: return function(value, index, collection) {\n return func.call(thisArg, value, index, collection);\n };\n case 4: return function(accumulator, value, index, collection) {\n return func.call(thisArg, accumulator, value, index, collection);\n };\n case 5: return function(value, other, key, object, source) {\n return func.call(thisArg, value, other, key, object, source);\n };\n }\n return function() {\n return func.apply(thisArg, arguments);\n };\n}\n\nmodule.exports = bindCallback;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/internal/bindCallback.js\n ** module id = 66\n ** module chunks = 0\n **/","/**\n * This method returns the first argument provided to it.\n *\n * @static\n * @memberOf _\n * @category Utility\n * @param {*} value Any value.\n * @returns {*} Returns `value`.\n * @example\n *\n * var object = { 'user': 'fred' };\n *\n * _.identity(object) === object;\n * // => true\n */\nfunction identity(value) {\n return value;\n}\n\nmodule.exports = identity;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/utility/identity.js\n ** module id = 67\n ** module chunks = 0\n **/","var isArrayLike = require('./isArrayLike'),\n isIndex = require('./isIndex'),\n isObject = require('../lang/isObject');\n\n/**\n * Checks if the provided arguments are from an iteratee call.\n *\n * @private\n * @param {*} value The potential iteratee value argument.\n * @param {*} index The potential iteratee index or key argument.\n * @param {*} object The potential iteratee object argument.\n * @returns {boolean} Returns `true` if the arguments are from an iteratee call, else `false`.\n */\nfunction isIterateeCall(value, index, object) {\n if (!isObject(object)) {\n return false;\n }\n var type = typeof index;\n if (type == 'number'\n ? (isArrayLike(object) && isIndex(index, object.length))\n : (type == 'string' && index in object)) {\n var other = object[index];\n return value === value ? (value === other) : (other !== other);\n }\n return false;\n}\n\nmodule.exports = isIterateeCall;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/internal/isIterateeCall.js\n ** module id = 68\n ** module chunks = 0\n **/","/** Used as the `TypeError` message for \"Functions\" methods. */\nvar FUNC_ERROR_TEXT = 'Expected a function';\n\n/* Native method references for those with the same name as other `lodash` methods. */\nvar nativeMax = Math.max;\n\n/**\n * Creates a function that invokes `func` with the `this` binding of the\n * created function and arguments from `start` and beyond provided as an array.\n *\n * **Note:** This method is based on the [rest parameter](https://developer.mozilla.org/Web/JavaScript/Reference/Functions/rest_parameters).\n *\n * @static\n * @memberOf _\n * @category Function\n * @param {Function} func The function to apply a rest parameter to.\n * @param {number} [start=func.length-1] The start position of the rest parameter.\n * @returns {Function} Returns the new function.\n * @example\n *\n * var say = _.restParam(function(what, names) {\n * return what + ' ' + _.initial(names).join(', ') +\n * (_.size(names) > 1 ? ', & ' : '') + _.last(names);\n * });\n *\n * say('hello', 'fred', 'barney', 'pebbles');\n * // => 'hello fred, barney, & pebbles'\n */\nfunction restParam(func, start) {\n if (typeof func != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n start = nativeMax(start === undefined ? (func.length - 1) : (+start || 0), 0);\n return function() {\n var args = arguments,\n index = -1,\n length = nativeMax(args.length - start, 0),\n rest = Array(length);\n\n while (++index < length) {\n rest[index] = args[start + index];\n }\n switch (start) {\n case 0: return func.call(this, rest);\n case 1: return func.call(this, args[0], rest);\n case 2: return func.call(this, args[0], args[1], rest);\n }\n var otherArgs = Array(start + 1);\n index = -1;\n while (++index < start) {\n otherArgs[index] = args[index];\n }\n otherArgs[start] = rest;\n return func.apply(this, otherArgs);\n };\n}\n\nmodule.exports = restParam;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/function/restParam.js\n ** module id = 69\n ** module chunks = 0\n **/","import CVUtils from './cv_utils';\n\nvar FrameGrabber = {};\n\nFrameGrabber.create = function(inputStream, canvas) {\n var _that = {},\n _streamConfig = inputStream.getConfig(),\n _video_size = CVUtils.imageRef(inputStream.getRealWidth(), inputStream.getRealHeight()),\n _canvasSize = inputStream.getCanvasSize(),\n _size = CVUtils.imageRef(inputStream.getWidth(), inputStream.getHeight()),\n topRight = inputStream.getTopRight(),\n _sx = topRight.x,\n _sy = topRight.y,\n _canvas,\n _ctx = null,\n _data = null;\n\n _canvas = canvas ? canvas : document.createElement(\"canvas\");\n _canvas.width = _canvasSize.x;\n _canvas.height = _canvasSize.y;\n _ctx = _canvas.getContext(\"2d\");\n _data = new Uint8Array(_size.x * _size.y);\n console.log(\"FrameGrabber\", JSON.stringify({\n size: _size,\n topRight: topRight,\n videoSize: _video_size,\n canvasSize: _canvasSize\n }));\n\n /**\n * Uses the given array as frame-buffer\n */\n _that.attachData = function(data) {\n _data = data;\n };\n\n /**\n * Returns the used frame-buffer\n */\n _that.getData = function() {\n return _data;\n };\n\n /**\n * Fetches a frame from the input-stream and puts into the frame-buffer.\n * The image-data is converted to gray-scale and then half-sampled if configured.\n */\n _that.grab = function() {\n var doHalfSample = _streamConfig.halfSample,\n frame = inputStream.getFrame(),\n ctxData;\n if (frame) {\n _ctx.drawImage(frame, 0, 0, _canvasSize.x, _canvasSize.y);\n ctxData = _ctx.getImageData(_sx, _sy, _size.x, _size.y).data;\n if(doHalfSample){\n CVUtils.grayAndHalfSampleFromCanvasData(ctxData, _size, _data);\n } else {\n CVUtils.computeGray(ctxData, _data, _streamConfig);\n }\n return true;\n } else {\n return false;\n }\n };\n\n _that.getSize = function() {\n return _size;\n };\n\n return _that;\n};\n\nexport default FrameGrabber;\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/frame_grabber.js\n **/","export default {\n inputStream: {\n name: \"Live\",\n type: \"LiveStream\",\n constraints: {\n width: 640,\n height: 480,\n minAspectRatio: 0,\n maxAspectRatio: 100,\n facing: \"environment\" // or user\n },\n area: {\n top: \"0%\",\n right: \"0%\",\n left: \"0%\",\n bottom: \"0%\"\n },\n singleChannel: false // true: only the red color-channel is read\n },\n tracking: false,\n debug: false,\n controls: false,\n locate: true,\n numOfWorkers: 4,\n visual: {\n show: true\n },\n decoder: {\n drawBoundingBox: false,\n showFrequency: false,\n drawScanline: false,\n showPattern: false,\n readers: [\n 'code_128_reader'\n ]\n },\n locator: {\n halfSample: true,\n patchSize: \"medium\", // x-small, small, medium, large, x-large\n showCanvas: false,\n showPatches: false,\n showFoundPatches: false,\n showSkeleton: false,\n showLabels: false,\n showPatchLabels: false,\n showRemainingPatchLabels: false,\n boxFromPatches: {\n showTransformed: false,\n showTransformedBox: false,\n showBB: false\n }\n }\n};\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/config.js\n **/","export default function() {\n var events = {};\n\n function getEvent(eventName) {\n if (!events[eventName]) {\n events[eventName] = {\n subscribers : []\n };\n }\n return events[eventName];\n }\n\n function clearEvents(){\n events = {};\n }\n\n function publishSubscription(subscription, data) {\n if (subscription.async) {\n setTimeout(function() {\n subscription.callback(data);\n }, 4);\n } else {\n subscription.callback(data);\n }\n }\n\n function subscribe(event, callback, async) {\n var subscription;\n\n if ( typeof callback === \"function\") {\n subscription = {\n callback : callback,\n async : async\n };\n } else {\n subscription = callback;\n if (!subscription.callback) {\n throw \"Callback was not specified on options\";\n }\n }\n\n getEvent(event).subscribers.push(subscription);\n }\n\n return {\n subscribe : function(event, callback, async) {\n return subscribe(event, callback, async);\n },\n publish : function(eventName, data) {\n var event = getEvent(eventName),\n subscribers = event.subscribers;\n\n event.subscribers = subscribers.filter(function(subscriber) {\n publishSubscription(subscriber, data);\n return !subscriber.once;\n });\n },\n once: function(event, callback, async) {\n subscribe(event, {\n callback: callback,\n async: async,\n once: true\n });\n },\n unsubscribe: function(eventName, callback) {\n var event;\n\n if (eventName) {\n event = getEvent(eventName);\n if (event && callback) {\n event.subscribers = event.subscribers.filter(function(subscriber){\n return subscriber.callback !== callback;\n });\n } else {\n event.subscribers = [];\n }\n } else {\n clearEvents();\n }\n }\n };\n}();\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/events.js\n **/","const merge = require('lodash/object/merge');\n\nvar streamRef,\n loadedDataHandler;\n\n/**\n * Wraps browser-specific getUserMedia\n * @param {Object} constraints\n * @param {Object} success Callback\n * @param {Object} failure Callback\n */\nfunction getUserMedia(constraints, success, failure) {\n if (typeof navigator.getUserMedia !== 'undefined') {\n navigator.getUserMedia(constraints, function (stream) {\n streamRef = stream;\n var videoSrc = (window.URL && window.URL.createObjectURL(stream)) || stream;\n success.apply(null, [videoSrc]);\n }, failure);\n } else {\n failure(new TypeError(\"getUserMedia not available\"));\n }\n}\n\nfunction loadedData(video, callback) {\n var attempts = 10;\n\n function checkVideo() {\n if (attempts > 0) {\n if (video.videoWidth > 0 && video.videoHeight > 0) {\n console.log(video.videoWidth + \"px x \" + video.videoHeight + \"px\");\n callback();\n } else {\n window.setTimeout(checkVideo, 500);\n }\n } else {\n callback('Unable to play video stream. 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c,d,e,f,g,h,i,j=a.data,k=b.data,l=a.size.y,m=a.size.x;for(c=1;l-1>c;c++)for(d=1;m-1>d;d++)f=c-1,g=c+1,h=d-1,i=d+1,e=j[f*m+h]+j[f*m+i]+j[c*m+d]+j[g*m+h]+j[g*m+i],k[c*m+d]=e>0?1:0},d.erode=function(a,b){var c,d,e,f,g,h,i,j=a.data,k=b.data,l=a.size.y,m=a.size.x;for(c=1;l-1>c;c++)for(d=1;m-1>d;d++)f=c-1,g=c+1,h=d-1,i=d+1,e=j[f*m+h]+j[f*m+i]+j[c*m+d]+j[g*m+h]+j[g*m+i],k[c*m+d]=5===e?1:0},d.subtract=function(a,b,c){c||(c=a);for(var d=a.data.length,e=a.data,f=b.data,g=c.data;d--;)g[d]=e[d]-f[d]},d.bitwiseOr=function(a,b,c){c||(c=a);for(var d=a.data.length,e=a.data,f=b.data,g=c.data;d--;)g[d]=e[d]||f[d]},d.countNonZero=function(a){for(var b=a.data.length,c=a.data,d=0;b--;)d+=c[b];return d},d.topGeneric=function(a,b,c){var d,e,f,g,h=0,i=0,j=[];for(d=0;b>d;d++)j[d]={score:0,item:null};for(d=0;di)for(f=j[h],f.score=e,f.item=a[d],i=Number.MAX_VALUE,g=0;b>g;g++)j[g].scoref;){for(d=0;h>d;d++)c[i]=Math.floor((.299*a[4*e+0]+.587*a[4*e+1]+.114*a[4*e+2]+(.299*a[4*(e+1)+0]+.587*a[4*(e+1)+1]+.114*a[4*(e+1)+2])+(.299*a[4*f+0]+.587*a[4*f+1]+.114*a[4*f+2])+(.299*a[4*(f+1)+0]+.587*a[4*(f+1)+1]+.114*a[4*(f+1)+2]))/4),i++,e+=2,f+=2;e+=j,f+=j}},d.computeGray=function(a,b,c){var d,e=a.length/4|0,f=c&&c.singleChannel===!0;if(f)for(d=0;e>d;d++)b[d]=a[4*d+0];else for(d=0;e>d;d++)b[d]=Math.floor(.299*a[4*d+0]+.587*a[4*d+1]+.114*a[4*d+2])},d.loadImageArray=function(a,b,c){c||(c=document.createElement("canvas"));var e=new Image;e.callback=b,e.onload=function(){c.width=this.width,c.height=this.height;var a=c.getContext("2d");a.drawImage(this,0,0);var b=new Uint8Array(this.width*this.height);a.drawImage(this,0,0);var e=a.getImageData(0,0,this.width,this.height).data;d.computeGray(e,b),this.callback(b,{x:this.width,y:this.height},this)},e.src=a},d.halfSample=function(a,b){for(var c=a.data,d=a.size.x,e=b.data,f=0,g=d,h=c.length,i=d/2,j=0;h>g;){for(var k=0;i>k;k++)e[j]=Math.floor((c[f]+c[f+1]+c[g]+c[g+1])/4),j++,f+=2,g+=2;f+=d,g+=d}},d.hsv2rgb=function(a,b){var c=a[0],d=a[1],e=a[2],f=e*d,g=f*(1-Math.abs(c/60%2-1)),h=e-f,i=0,j=0,k=0;return b=b||[0,0,0],60>c?(i=f,j=g):120>c?(i=g,j=f):180>c?(j=f,k=g):240>c?(j=g,k=f):300>c?(i=g,k=f):360>c&&(i=f,k=g),b[0]=255*(i+h)|0,b[1]=255*(j+h)|0,b[2]=255*(k+h)|0,b},d._computeDivisors=function(a){var b,c=[],d=[];for(b=1;bb[d]?d++:c++;return e},d.calculatePatchSize=function(a,b){function c(a){for(var b=0,c=a[Math.floor(a.length/2)];b0&&(c=Math.abs(a[b]-m)>Math.abs(a[b-1]-m)?a[b-1]:a[b]),m/ci[k-1]/i[k]?{x:c,y:c}:null}var d,e=this._computeDivisors(b.x),f=this._computeDivisors(b.y),g=Math.max(b.x,b.y),h=this._computeIntersection(e,f),i=[8,10,15,20,32,60,80],j={"x-small":5,small:4,medium:3,large:2,"x-large":1},k=j[a]||j.medium,l=i[k],m=Math.floor(g/l);return d=c(h),d||(d=c(this._computeDivisors(g)),d||(d=c(this._computeDivisors(m*l)))),d},d._parseCSSDimensionValues=function(a){var b={value:parseFloat(a),unit:(a.indexOf("%")===a.length-1,"%")};return b},d._dimensionsConverters={top:function(a,b){return"%"===a.unit?Math.floor(b.height*(a.value/100)):void 0},right:function(a,b){return"%"===a.unit?Math.floor(b.width-b.width*(a.value/100)):void 0},bottom:function(a,b){return"%"===a.unit?Math.floor(b.height-b.height*(a.value/100)):void 0},left:function(a,b){return"%"===a.unit?Math.floor(b.width*(a.value/100)):void 0}},d.computeImageArea=function(a,b,c){var e={width:a,height:b},f=Object.keys(c).reduce(function(a,b){var f=c[b],g=d._parseCSSDimensionValues(f),h=d._dimensionsConverters[b](g,e);return a[b]=h,a},{});return{sx:f.left,sy:f.top,sw:f.right-f.left,sh:f.bottom-f.top}},d}),d("image_wrapper",["subImage","cv_utils","array_helper","gl-matrix"],function(a,b,c,d){"use strict";function e(a,b,d,e){b?this.data=b:d?(this.data=new d(a.x*a.y),d===Array&&e&&c.init(this.data,0)):(this.data=new Uint8Array(a.x*a.y),Uint8Array===Array&&e&&c.init(this.data,0)),this.size=a}var f=d.vec2,g=d.mat2;return e.prototype.inImageWithBorder=function(a,b){return a.x>=b&&a.y>=b&&a.x=0&&u>=0&&n-1>v&&o-1>w){for(i=s,j=0;m>j;++j,f.add(i,y))for(k=0;l>k;++k,f.add(i,p))b.set(k,j,x(a,i[0],i[1]));return 0}var z=n-1,A=o-1,B=0;for(i=s,j=0;m>j;++j,f.add(i,y))for(k=0;l>k;++k,f.add(i,p))0<=i[0]&&0<=i[1]&&i[0]c;c++)for(d=0;e>d;d++)a.data[d*f+c]=this.data[(b.y+d)*this.size.x+b.x+c]},e.prototype.copyTo=function(a){for(var b=this.data.length,c=this.data,d=a.data;b--;)d[b]=c[b]},e.prototype.get=function(a,b){return this.data[b*this.size.x+a]},e.prototype.getSafe=function(a,b){var c;if(!this.indexMapping){for(this.indexMapping={x:[],y:[]},c=0;ca;a++)d[a]=d[(c-1)*b+a]=0;for(a=1;c-1>a;a++)d[a*b]=d[a*b+(b-1)]=0},e.prototype.invert=function(){for(var a=this.data,b=a.length;b--;)a[b]=a[b]?0:1},e.prototype.convolve=function(a){var b,c,d,e,f=a.length/2|0,g=0;for(c=0;c=e;e++)for(d=-f;f>=d;d++)g+=a[e+f][d+f]*this.getSafe(b+d,c+e);this.data[c*this.size.x+b]=g}},e.prototype.moments=function(a){var b,c,d,e,g,h,i,j,k,l,m,n,o=this.data,p=this.size.y,q=this.size.x,r=[],s=[],t=Math.PI,u=t/4;if(0>=a)return s;for(g=0;a>g;g++)r[g]={m00:0,m01:0,m10:0,m11:0,m02:0,m20:0,theta:0,rad:0};for(c=0;p>c;c++)for(e=c*c,b=0;q>b;b++)d=o[c*q+b],d>0&&(h=r[d-1],h.m00+=1,h.m01+=c,h.m10+=b,h.m11+=b*c,h.m02+=e,h.m20+=b*b);for(g=0;a>g;g++)h=r[g],isNaN(h.m00)||0===h.m00||(l=h.m10/h.m00,m=h.m01/h.m00,i=h.m11/h.m00-l*m,j=h.m02/h.m00-m*m,k=h.m20/h.m00-l*l,n=(j-k)/(2*i),n=.5*Math.atan(n)+(i>=0?u:-u)+t,h.theta=(180*n/t+90)%180-90,h.theta<0&&(h.theta+=180),h.rad=n>t?n-t:n,h.vec=f.clone([Math.cos(n),Math.sin(n)]),s.push(h));return s},e.prototype.show=function(a,b){var c,d,e,f,g,h,i;for(b||(b=1),c=a.getContext("2d"),a.width=this.size.x,a.height=this.size.y,d=c.getImageData(0,0,a.width,a.height),e=d.data,f=0,i=0;ic||c>360)&&(c=360);for(var e=[0,1,1],f=[0,0,0],g=[255,255,255],h=[0,0,0],i=[],j=a.getContext("2d"),k=j.getImageData(d.x,d.y,this.size.x,this.size.y),l=k.data,m=this.data.length;m--;)e[0]=this.data[m]*c,i=e[0]<=0?g:e[0]>=360?h:b.hsv2rgb(e,f),l[4*m+0]=i[0],l[4*m+1]=i[1],l[4*m+2]=i[2],l[4*m+3]=255;j.putImageData(k,d.x,d.y)},e}),d("tracer",[],function(){"use strict";var a={searchDirections:[[0,1],[1,1],[1,0],[1,-1],[0,-1],[-1,-1],[-1,0],[-1,1]],create:function(a,b){function c(a,b,c,d){var e,k,l;for(e=0;7>e;e++){if(k=a.cy+i[a.dir][0],l=a.cx+i[a.dir][1],f=k*j+l,g[f]===b&&(0===h[f]||h[f]===c))return h[f]=c,a.cy=k,a.cx=l,!0;0===h[f]&&(h[f]=d),a.dir=(a.dir+1)%8}return!1}function d(a,b,c){return{dir:c,x:a,y:b,next:null,prev:null}}function e(a,b,e,f,g){var h,i,j,k=null,l={cx:b,cy:a,dir:0};if(c(l,f,e,g)){k=d(b,a,l.dir),h=k,j=l.dir,i=d(l.cx,l.cy,0),i.prev=h,h.next=i,i.next=null,h=i;do l.dir=(l.dir+6)%8,c(l,f,e,g),j!=l.dir?(h.dir=l.dir,i=d(l.cx,l.cy,0),i.prev=h,h.next=i,i.next=null,h=i):(h.dir=j,h.x=l.cx,h.y=l.cy),j=l.dir;while(l.cx!=b||l.cy!=a);k.prev=h.prev,h.prev.next=k}return k}var f,g=a.data,h=b.data,i=this.searchDirections,j=a.size.x;return{trace:function(a,b,d,e){return c(a,b,d,e)},contourTracing:function(a,b,c,d,f){return e(a,b,c,d,f)}}}};return a}),d("rasterizer",["tracer"],function(a){"use strict";var b={createContour2D:function(){return{dir:null,index:null,firstVertex:null,insideContours:null,nextpeer:null,prevpeer:null}},CONTOUR_DIR:{CW_DIR:0,CCW_DIR:1,UNKNOWN_DIR:2},DIR:{OUTSIDE_EDGE:-32767,INSIDE_EDGE:-32766},create:function(c,d){var e=c.data,f=d.data,g=c.size.x,h=c.size.y,i=a.create(c,d);return{rasterize:function(a){var c,d,j,k,l,m,n,o,p,q,r,s,t=[],u=0;for(s=0;400>s;s++)t[s]=0;for(t[0]=e[0],p=null,m=1;h-1>m;m++)for(k=0,d=t[0],l=1;g-1>l;l++)if(r=m*g+l,0===f[r])if(c=e[r],c!==d){if(0===k)j=u+1,t[j]=c,d=c,n=i.contourTracing(m,l,j,c,b.DIR.OUTSIDE_EDGE),null!==n&&(u++,k=j,o=b.createContour2D(),o.dir=b.CONTOUR_DIR.CW_DIR,o.index=k,o.firstVertex=n,o.nextpeer=p,o.insideContours=null,null!==p&&(p.prevpeer=o),p=o);else if(n=i.contourTracing(m,l,b.DIR.INSIDE_EDGE,c,k),null!==n){for(o=b.createContour2D(),o.firstVertex=n,o.insideContours=null,0===a?o.dir=b.CONTOUR_DIR.CCW_DIR:o.dir=b.CONTOUR_DIR.CW_DIR,o.index=a,q=p;null!==q&&q.index!==k;)q=q.nextpeer;null!==q&&(o.nextpeer=q.insideContours,null!==q.insideContours&&(q.insideContours.prevpeer=o),q.insideContours=o)}}else f[r]=k;else f[r]===b.DIR.OUTSIDE_EDGE||f[r]===b.DIR.INSIDE_EDGE?(k=0,d=f[r]===b.DIR.INSIDE_EDGE?e[r]:t[0]):(k=f[r],d=t[k]);for(q=p;null!==q;)q.index=a,q=q.nextpeer;return{cc:p,count:u}},debug:{drawContour:function(a,c){var d,e,f,g=a.getContext("2d"),h=c;for(g.strokeStyle="red",g.fillStyle="red",g.lineWidth=1,d=null!==h?h.insideContours:null;null!==h;){switch(null!==d?(e=d,d=d.nextpeer):(e=h,h=h.nextpeer,d=null!==h?h.insideContours:null),e.dir){case b.CONTOUR_DIR.CW_DIR:g.strokeStyle="red";break;case b.CONTOUR_DIR.CCW_DIR:g.strokeStyle="blue";break;case b.CONTOUR_DIR.UNKNOWN_DIR:g.strokeStyle="green"}f=e.firstVertex,g.beginPath(),g.moveTo(f.x,f.y);do f=f.next,g.lineTo(f.x,f.y);while(f!==e.firstVertex);g.stroke()}}}}}};return b}),d("skeletonizer",[],function(){"use strict";function a(stdlib, foreign, buffer) {"use asm";var images=new stdlib.Uint8Array(buffer),size=foreign.size|0,imul=stdlib.Math.imul;function erode(inImagePtr, outImagePtr) {inImagePtr=inImagePtr|0;outImagePtr=outImagePtr|0;var v=0,u=0,sum=0,yStart1=0,yStart2=0,xStart1=0,xStart2=0,offset=0;for ( v=1; (v|0)<((size - 1)|0); v=(v+1)|0) {offset=(offset+size)|0;for ( u=1; (u|0)<((size - 1)|0); u=(u+1)|0) {yStart1=(offset - size)|0;yStart2=(offset+size)|0;xStart1=(u - 1)|0;xStart2=(u+1)|0;sum=((images[(inImagePtr+yStart1+xStart1)|0]|0)+(images[(inImagePtr+yStart1+xStart2)|0]|0)+(images[(inImagePtr+offset+u)|0]|0)+(images[(inImagePtr+yStart2+xStart1)|0]|0)+(images[(inImagePtr+yStart2+xStart2)|0]|0))|0;if ((sum|0) == (5|0)) {images[(outImagePtr+offset+u)|0]=1;} else {images[(outImagePtr+offset+u)|0]=0;}}}return;}function subtract(aImagePtr, bImagePtr, outImagePtr) {aImagePtr=aImagePtr|0;bImagePtr=bImagePtr|0;outImagePtr=outImagePtr|0;var length=0;length=imul(size, size)|0;while ((length|0)>0) {length=(length - 1)|0;images[(outImagePtr+length)|0]=((images[(aImagePtr+length)|0]|0) - (images[(bImagePtr+length)|0]|0))|0;}}function bitwiseOr(aImagePtr, bImagePtr, outImagePtr) {aImagePtr=aImagePtr|0;bImagePtr=bImagePtr|0;outImagePtr=outImagePtr|0;var length=0;length=imul(size, size)|0;while ((length|0)>0) {length=(length - 1)|0;images[(outImagePtr+length)|0]=((images[(aImagePtr+length)|0]|0)|(images[(bImagePtr+length)|0]|0))|0;}}function countNonZero(imagePtr) {imagePtr=imagePtr|0;var sum=0,length=0;length=imul(size, size)|0;while ((length|0)>0) {length=(length - 1)|0;sum=((sum|0)+(images[(imagePtr+length)|0]|0))|0;}return (sum|0);}function init(imagePtr, value) {imagePtr=imagePtr|0;value=value|0;var length=0;length=imul(size, size)|0;while ((length|0)>0) {length=(length - 1)|0;images[(imagePtr+length)|0]=value;}}function dilate(inImagePtr, outImagePtr) {inImagePtr=inImagePtr|0;outImagePtr=outImagePtr|0;var v=0,u=0,sum=0,yStart1=0,yStart2=0,xStart1=0,xStart2=0,offset=0;for ( v=1; (v|0)<((size - 1)|0); v=(v+1)|0) {offset=(offset+size)|0;for ( u=1; (u|0)<((size - 1)|0); u=(u+1)|0) {yStart1=(offset - size)|0;yStart2=(offset+size)|0;xStart1=(u - 1)|0;xStart2=(u+1)|0;sum=((images[(inImagePtr+yStart1+xStart1)|0]|0)+(images[(inImagePtr+yStart1+xStart2)|0]|0)+(images[(inImagePtr+offset+u)|0]|0)+(images[(inImagePtr+yStart2+xStart1)|0]|0)+(images[(inImagePtr+yStart2+xStart2)|0]|0))|0;if ((sum|0)>(0|0)) {images[(outImagePtr+offset+u)|0]=1;} else {images[(outImagePtr+offset+u)|0]=0;}}}return;}function memcpy(srcImagePtr, dstImagePtr) {srcImagePtr=srcImagePtr|0;dstImagePtr=dstImagePtr|0;var length=0;length=imul(size, size)|0;while ((length|0)>0) {length=(length - 1)|0;images[(dstImagePtr+length)|0]=(images[(srcImagePtr+length)|0]|0);}}function zeroBorder(imagePtr) {imagePtr=imagePtr|0;var x=0,y=0;for ( x=0; (x|0)<((size - 1)|0); x=(x+1)|0) {images[(imagePtr+x)|0]=0;images[(imagePtr+y)|0]=0;y=((y+size) - 1)|0;images[(imagePtr+y)|0]=0;y=(y+1)|0;}for ( x=0; (x|0)<(size|0); x=(x+1)|0) {images[(imagePtr+y)|0]=0;y=(y+1)|0;}}function skeletonize() {var subImagePtr=0,erodedImagePtr=0,tempImagePtr=0,skelImagePtr=0,sum=0,done=0;erodedImagePtr=imul(size, size)|0;tempImagePtr=(erodedImagePtr+erodedImagePtr)|0;skelImagePtr=(tempImagePtr+erodedImagePtr)|0;init(skelImagePtr, 0);zeroBorder(subImagePtr);do {erode(subImagePtr, erodedImagePtr);dilate(erodedImagePtr, tempImagePtr);subtract(subImagePtr, tempImagePtr, tempImagePtr);bitwiseOr(skelImagePtr, tempImagePtr, skelImagePtr);memcpy(erodedImagePtr, subImagePtr);sum=countNonZero(subImagePtr)|0;done=((sum|0) == 0|0);} while(!done);}return {skeletonize : skeletonize};} -return a}),d("image_debug",[],function(){"use strict";return{drawRect:function(a,b,c,d){c.strokeStyle=d.color,c.fillStyle=d.color,c.lineWidth=1,c.beginPath(),c.strokeRect(a.x,a.y,b.x,b.y)},drawPath:function(a,b,c,d){c.strokeStyle=d.color,c.fillStyle=d.color,c.lineWidth=d.lineWidth,c.beginPath(),c.moveTo(a[0][b.x],a[0][b.y]);for(var e=1;eb&&(b+=180),b=(180-b)*Math.PI/180,f=I.clone([Math.cos(b),Math.sin(b),-Math.sin(b),Math.cos(b)]),c=0;cd;d++)H.transformMat2(e.box[d],e.box[d],f);t.boxFromPatches.showTransformed&&g.drawPath(e.box,{x:0,y:1},F.ctx.binary,{color:"#99ff00",lineWidth:2})}for(c=0;cd;d++)e.box[d][0]l&&(l=e.box[d][0]),e.box[d][1]m&&(m=e.box[d][1]);for(h=[[j,k],[l,k],[l,m],[j,m]],t.boxFromPatches.showTransformedBox&&g.drawPath(h,{x:0,y:1},F.ctx.binary,{color:"#ff0000",lineWidth:2}),i=t.halfSample?2:1,f=I.invert(f,f),d=0;4>d;d++)H.transformMat2(h[d],h[d],f);for(t.boxFromPatches.showBB&&g.drawPath(h,{x:0,y:1},F.ctx.binary,{color:"#ff0000",lineWidth:2}),d=0;4>d;d++)H.scale(h[d],h[d],i);return h}function l(){b.otsuThreshold(u,B),B.zeroBorder(),t.showCanvas&&B.show(F.dom.binary,255)}function m(){var a,b,d,e,h,i,j,k,l=[];for(a=0;ab;b++)d.push(0);for(c=z.data.length;c--;)z.data[c]>0&&d[z.data[c]-1]++;return d=d.map(function(a,b){return{val:a,label:b+1}}),d.sort(function(a,b){return b.val-a.val}),e=d.filter(function(a){return a.val>=5})}function o(a,c){var d,e,f,h,i,j=[],l=[],m=[0,1,1],n=[0,0,0];for(d=0;d=2){for(e=0;el&&j.push(a[e]);if(j.length>=2){for(i=j.length,g=p(j),f=0,e=0;e1&&g.length>=j.length/4*3&&g.length>a.length/4&&(f/=g.length,h={index:b[1]*G.x+b[0],pos:{x:c,y:d},box:[H.clone([c,d]),H.clone([c+w.size.x,d]),H.clone([c+w.size.x,d+w.size.y]),H.clone([c,d+w.size.y])],moments:g,rad:f,vec:H.clone([Math.cos(f),Math.sin(f)])},k.push(h))}}return k}function s(a){function c(){var a;for(a=0;ak&&e(h))):z.data[h]=Number.MAX_VALUE}var h,i,j=0,k=.95,l=0,m=[0,1,1],n=[0,0,0];for(f.init(y.data,0),f.init(z.data,0),f.init(A.data,null),h=0;h0&&z.data[h]<=j&&(i=A.data[h],m[0]=z.data[h]/(j+1)*360,b.hsv2rgb(m,n),g.drawRect(i.pos,w.size,F.ctx.binary,{color:"rgb("+n.join(",")+")",lineWidth:2}));return j}var t,u,v,w,x,y,z,A,B,C,D,E,F={ctx:{binary:null},dom:{binary:null}},G={x:0,y:0},H=h.vec2,I=h.mat2,J=this;return{init:function(a,b){t=b,D=a,i(),j()},locate:function(){var a,c,d;if(t.halfSample&&b.halfSample(D,u),l(),a=m(),a.lengthe?null:(c=n(e),0===c.length?null:d=o(c,e))},checkImageConstraints:function(a,c){var d,e,f,g=a.getWidth(),h=a.getHeight(),i=c.halfSample?.5:1;if(a.getConfig().area&&(f=b.computeImageArea(g,h,a.getConfig().area),a.setTopRight({x:f.sx,y:f.sy}),a.setCanvasSize({x:g,y:h}),g=f.sw,h=f.sh),e={x:Math.floor(g*i),y:Math.floor(h*i)},d=b.calculatePatchSize(c.patchSize,e),console.log("Patch-Size: "+JSON.stringify(d)),a.setWidth(Math.floor(Math.floor(e.x/d.x)*(1/i)*d.x)),a.setHeight(Math.floor(Math.floor(e.y/d.y)*(1/i)*d.y)),a.getWidth()%d.x===0&&a.getHeight()%d.y===0)return!0;throw new Error("Image dimensions do not comply with the current settings: Width ("+g+" )and height ("+h+") must a multiple of "+d.x)}}}),d("bresenham",["cv_utils","image_wrapper"],function(a,b){"use strict";var c={},d={DIR:{UP:1,DOWN:-1}};return c.getBarcodeLine=function(a,b,c){function d(a,b){l=s[b*t+a],u+=l,v=v>l?l:v,w=l>w?l:w,r.push(l)}var e,f,g,h,i,j,k,l,m=0|b.x,n=0|b.y,o=0|c.x,p=0|c.y,q=Math.abs(p-n)>Math.abs(o-m),r=[],s=a.data,t=a.size.x,u=0,v=255,w=0;for(q&&(j=m,m=n,n=j,j=o,o=p,p=j),m>o&&(j=m,m=o,o=j,j=n,n=p,p=j),e=o-m,f=Math.abs(p-n),g=e/2|0,i=n,h=p>n?1:-1,k=m;o>k;k++)q?d(i,k):d(k,i),g-=f,0>g&&(i+=h,g+=e);return{line:r,min:v,max:w}},c.toOtsuBinaryLine=function(c){var d=c.line,e=new b({x:d.length-1,y:1},d),f=a.determineOtsuThreshold(e,5);return d=a.sharpenLine(d),a.thresholdImage(e,f),{line:d,threshold:f}},c.toBinaryLine=function(a){var b,c,e,f,g,h,i=a.min,j=a.max,k=a.line,l=i+(j-i)/2,m=[],n=(j-i)/12,o=-n;for(e=k[0]>l?d.DIR.UP:d.DIR.DOWN,m.push({pos:0,val:k[0]}),g=0;gb+c&&k[g+1]<1.5*l?d.DIR.DOWN:b+c>n&&k[g+1]>.5*l?d.DIR.UP:e,e!==f&&(m.push({pos:g,val:k[g]}),e=f);for(m.push({pos:k.length,val:k[k.length-1]}),h=m[0].pos;hl?0:1;for(g=1;gm[g].val?m[g].val+(m[g+1].val-m[g].val)/3*2|0:m[g+1].val+(m[g].val-m[g+1].val)/3|0,h=m[g].pos;hn?0:1;return{line:k,threshold:n}},c.debug={printFrequency:function(a,b){var c,d=b.getContext("2d");for(b.width=a.length,b.height=256,d.beginPath(),d.strokeStyle="blue",c=0;cg)return Number.MAX_VALUE;d+=e}return d/f},a.prototype._nextSet=function(a,b){var c;for(b=b||0,c=b;c1)for(c=0;cd?(j.start=c-g,j.end=c,j.counter=e,j):null;i++,e[i]=1,h=!h}}else for(e.push(0),c=g;ca?0:a,d=a;b>d;d++)if(this._row[d]!==c)return!1;return!0},a.prototype._fillCounters=function(a,b,c){var d,e=this,f=0,g=[];for(c="undefined"!=typeof c?c:!0,a="undefined"!=typeof a?a:e._nextUnset(e._row),b=b||e._row.length,g[f]=0,d=a;b>d;d++)e._row[d]^c?g[f]++:(f++,g[f]=1,c=!c);return g},Object.defineProperty(a.prototype,"FORMAT",{value:"unknown",writeable:!1}),a.DIRECTION={FORWARD:1,REVERSE:-1},a.Exception={StartNotFoundException:"Start-Info was not found!",CodeNotFoundException:"Code could not be found!",PatternNotFoundException:"Pattern could not be found!"},a.CONFIG_KEYS={},a}),d("code_128_reader",["./barcode_reader"],function(a){"use strict";function b(){a.call(this)}var c={CODE_SHIFT:{value:98},CODE_C:{value:99},CODE_B:{value:100},CODE_A:{value:101},START_CODE_A:{value:103},START_CODE_B:{value:104},START_CODE_C:{value:105},STOP_CODE:{value:106},MODULO:{value:11},CODE_PATTERN:{value:[[2,1,2,2,2,2],[2,2,2,1,2,2],[2,2,2,2,2,1],[1,2,1,2,2,3],[1,2,1,3,2,2],[1,3,1,2,2,2],[1,2,2,2,1,3],[1,2,2,3,1,2],[1,3,2,2,1,2],[2,2,1,2,1,3],[2,2,1,3,1,2],[2,3,1,2,1,2],[1,1,2,2,3,2],[1,2,2,1,3,2],[1,2,2,2,3,1],[1,1,3,2,2,2],[1,2,3,1,2,2],[1,2,3,2,2,1],[2,2,3,2,1,1],[2,2,1,1,3,2],[2,2,1,2,3,1],[2,1,3,2,1,2],[2,2,3,1,1,2],[3,1,2,1,3,1],[3,1,1,2,2,2],[3,2,1,1,2,2],[3,2,1,2,2,1],[3,1,2,2,1,2],[3,2,2,1,1,2],[3,2,2,2,1,1],[2,1,2,1,2,3],[2,1,2,3,2,1],[2,3,2,1,2,1],[1,1,1,3,2,3],[1,3,1,1,2,3],[1,3,1,3,2,1],[1,1,2,3,1,3],[1,3,2,1,1,3],[1,3,2,3,1,1],[2,1,1,3,1,3],[2,3,1,1,1,3],[2,3,1,3,1,1],[1,1,2,1,3,3],[1,1,2,3,3,1],[1,3,2,1,3,1],[1,1,3,1,2,3],[1,1,3,3,2,1],[1,3,3,1,2,1],[3,1,3,1,2,1],[2,1,1,3,3,1],[2,3,1,1,3,1],[2,1,3,1,1,3],[2,1,3,3,1,1],[2,1,3,1,3,1],[3,1,1,1,2,3],[3,1,1,3,2,1],[3,3,1,1,2,1],[3,1,2,1,1,3],[3,1,2,3,1,1],[3,3,2,1,1,1],[3,1,4,1,1,1],[2,2,1,4,1,1],[4,3,1,1,1,1],[1,1,1,2,2,4],[1,1,1,4,2,2],[1,2,1,1,2,4],[1,2,1,4,2,1],[1,4,1,1,2,2],[1,4,1,2,2,1],[1,1,2,2,1,4],[1,1,2,4,1,2],[1,2,2,1,1,4],[1,2,2,4,1,1],[1,4,2,1,1,2],[1,4,2,2,1,1],[2,4,1,2,1,1],[2,2,1,1,1,4],[4,1,3,1,1,1],[2,4,1,1,1,2],[1,3,4,1,1,1],[1,1,1,2,4,2],[1,2,1,1,4,2],[1,2,1,2,4,1],[1,1,4,2,1,2],[1,2,4,1,1,2],[1,2,4,2,1,1],[4,1,1,2,1,2],[4,2,1,1,1,2],[4,2,1,2,1,1],[2,1,2,1,4,1],[2,1,4,1,2,1],[4,1,2,1,2,1],[1,1,1,1,4,3],[1,1,1,3,4,1],[1,3,1,1,4,1],[1,1,4,1,1,3],[1,1,4,3,1,1],[4,1,1,1,1,3],[4,1,1,3,1,1],[1,1,3,1,4,1],[1,1,4,1,3,1],[3,1,1,1,4,1],[4,1,1,1,3,1],[2,1,1,4,1,2],[2,1,1,2,1,4],[2,1,1,2,3,2],[2,3,3,1,1,1,2]]},SINGLE_CODE_ERROR:{value:1},AVG_CODE_ERROR:{value:.5},FORMAT:{value:"code_128",writeable:!1}};return b.prototype=Object.create(a.prototype,c),b.prototype.constructor=b,b.prototype._decodeCode=function(a){var b,c,d,e,f=[0,0,0,0,0,0],g=this,h=a,i=!g._row[h],j=0,k={error:Number.MAX_VALUE,code:-1,start:a,end:a};for(b=h;bd;d++)g[d]=g[d+2];g[4]=0,g[5]=0,k--}else k++;g[k]=1,j=!j}return null},b.prototype._decode=function(){var a,b,c,d=this,e=d._findStart(),f=null,g=!1,h=[],i=0,j=0,k=[],l=[],m=!1;if(null===e)return null;switch(f={code:e.code,start:e.start,end:e.end},l.push(f),j=f.code,f.code){case d.START_CODE_A:a=d.CODE_A;break;case d.START_CODE_B:a=d.CODE_B;break;case d.START_CODE_C:a=d.CODE_C;break;default:return null}for(;!g;){if(b=m,m=!1,f=d._decodeCode(f.end),null!==f)switch(f.code!==d.STOP_CODE&&(k.push(f.code),i++,j+=i*f.code),l.push(f),a){case d.CODE_A:if(f.code<64)h.push(String.fromCharCode(32+f.code));else if(f.code<96)h.push(String.fromCharCode(f.code-64));else switch(f.code){case d.CODE_SHIFT:m=!0,a=d.CODE_B;break;case d.CODE_B:a=d.CODE_B;break;case d.CODE_C:a=d.CODE_C;break;case d.STOP_CODE:g=!0}break;case d.CODE_B:if(f.code<96)h.push(String.fromCharCode(32+f.code));else switch(f.code!=d.STOP_CODE&&(c=!1),f.code){case d.CODE_SHIFT:m=!0,a=d.CODE_A;break;case d.CODE_A:a=d.CODE_A;break;case d.CODE_C:a=d.CODE_C;break;case d.STOP_CODE:g=!0}break;case d.CODE_C:switch(f.code<100&&h.push(f.code<10?"0"+f.code:f.code),f.code){case d.CODE_A:a=d.CODE_A;break;case d.CODE_B:a=d.CODE_B;break;case d.STOP_CODE:g=!0}}else g=!0;b&&(a=a==d.CODE_A?d.CODE_B:d.CODE_A)}return null===f?null:(f.end=d._nextUnset(d._row,f.end),d._verifyTrailingWhitespace(f)?(j-=i*k[k.length-1],j%103!=k[k.length-1]?null:h.length?(h.splice(h.length-1,1),{code:h.join(""),start:e.start,end:f.end,codeset:a,startInfo:e,decodedCodes:l,endInfo:f}):null):null)},a.prototype._verifyTrailingWhitespace=function(a){var b,c=this;return b=a.end+(a.end-a.start)/2,bd;d++)e=h._matchPattern(f,h.CODE_PATTERN[d]),eh.AVG_CODE_ERROR?null:l}}else k++;g[k]=1,j=!j}return null},b.prototype._findPattern=function(a,b,c,d,e){var f,g,h,i,j,k=[],l=this,m=0,n={error:Number.MAX_VALUE,code:-1,start:0,end:0};for(b||(b=l._nextSet(l._row)),void 0===c&&(c=!1),void 0===d&&(d=!0),void 0===e&&(e=l.AVG_CODE_ERROR),f=0;fg))return n.error=g,n.start=f-i,n.end=f,n;if(!d)return null;for(h=0;h=0&&c._matchRange(a,b.start,0))return b;d=b.end,b=null}},b.prototype._verifyTrailingWhitespace=function(a){var b,c=this;return b=a.end+(a.end-a.start),bd;d++){if(a=f._decodeCode(a.end),!a)return null;a.code>=f.CODE_G_START?(a.code=a.code-f.CODE_G_START,g|=1<<5-d):g|=0<<5-d,b.push(a.code),c.push(a)}if(e=f._calculateFirstDigit(g),null===e)return null;if(b.unshift(e),a=f._findPattern(f.MIDDLE_PATTERN,a.end,!0,!1),null===a)return null;for(c.push(a),d=0;6>d;d++){if(a=f._decodeCode(a.end,f.CODE_G_START),!a)return null;c.push(a),b.push(a.code)}return a},b.prototype._decode=function(){var a,b,c=this,d=[],e=[];return(a=c._findStart())?(b={code:a.code,start:a.start,end:a.end},e.push(b),(b=c._decodePayload(b,d,e))&&(b=c._findEnd(b.end,!1))?(e.push(b),c._checksum(d)?{code:d.join(""),start:a.start,end:b.end,codeset:"",startInfo:a,decodedCodes:e}:null):null):null},b.prototype._checksum=function(a){var b,c=0;for(b=a.length-2;b>=0;b-=2)c+=a[b];for(c*=3,b=a.length-1;b>=0;b-=2)c+=a[b];return c%10===0},b}),d("code_39_reader",["./barcode_reader","./array_helper"],function(a,b){"use strict";function c(){a.call(this)}var d={ALPHABETH_STRING:{value:"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ-. *$/+%"},ALPHABET:{value:[48,49,50,51,52,53,54,55,56,57,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,45,46,32,42,36,47,43,37]},CHARACTER_ENCODINGS:{value:[52,289,97,352,49,304,112,37,292,100,265,73,328,25,280,88,13,268,76,28,259,67,322,19,274,82,7,262,70,22,385,193,448,145,400,208,133,388,196,148,168,162,138,42]},ASTERISK:{value:148},FORMAT:{value:"code_39",writeable:!1}};return c.prototype=Object.create(a.prototype,d),c.prototype.constructor=c,c.prototype._toCounters=function(a,c){var d,e=this,f=c.length,g=e._row.length,h=!e._row[a],i=0;for(b.init(c,0),d=a;g>d;d++)if(e._row[d]^h)c[i]++;else{if(i++,i===f)break;c[i]=1,h=!h}return c},c.prototype._decode=function(){var a,c,d,e,f=this,g=[0,0,0,0,0,0,0,0,0],h=[],i=f._findStart();if(!i)return null;e=f._nextSet(f._row,i.end);do{if(g=f._toCounters(e,g),d=f._toPattern(g),0>d)return null;if(a=f._patternToChar(d),0>a)return null;h.push(a),c=e,e+=b.sum(g),e=f._nextSet(f._row,e)}while("*"!==a);return h.pop(),h.length&&f._verifyTrailingWhitespace(c,e,g)?{code:h.join(""),start:i.start,end:e,startInfo:i,decodedCodes:h}:null},c.prototype._verifyTrailingWhitespace=function(a,c,d){var e,f=b.sum(d);return e=c-a-f,3*e>=f?!0:!1},c.prototype._patternToChar=function(a){var b,c=this;for(b=0;bb&&(d=a[c]);return d},c.prototype._toPattern=function(a){for(var b,c,d=a.length,e=0,f=d,g=0,h=this;f>3;){for(e=h._findNextWidth(a,e),f=0,b=0,c=0;d>c;c++)a[c]>e&&(b|=1<c&&f>0;c++)if(a[c]>e&&(f--,2*a[c]>=g))return-1;return b}}return-1},c.prototype._findStart=function(){var a,b,c,d=this,e=d._nextSet(d._row),f=e,g=[0,0,0,0,0,0,0,0,0],h=0,i=!1;for(a=e;ab;b++)g[b]=g[b+2];g[7]=0,g[8]=0,h--}else h++;g[h]=1,i=!i}return null},c}),d("code_39_vin_reader",["./code_39_reader"],function(a){"use strict";function b(){a.call(this)}var c={IOQ:/[IOQ]/g,AZ09:/[A-Z0-9]{17}/};return b.prototype=Object.create(a.prototype),b.prototype.constructor=b,b.prototype._decode=function(){var b=a.prototype._decode.apply(this);if(!b)return null;var d=b.code;if(d)return d=d.replace(c.IOQ,""),d.match(c.AZ09)?this._checkChecksum(d)?(b.code=d,b):null:(console.log("Failed AZ09 pattern code:",d),null)},b.prototype._checkChecksum=function(a){return!!a},b}),d("codabar_reader",["./barcode_reader"],function(a){"use strict";function b(){a.call(this),this._counters=[]}var c={ALPHABETH_STRING:{value:"0123456789-$:/.+ABCD"},ALPHABET:{value:[48,49,50,51,52,53,54,55,56,57,45,36,58,47,46,43,65,66,67,68]},CHARACTER_ENCODINGS:{value:[3,6,9,96,18,66,33,36,48,72,12,24,69,81,84,21,26,41,11,14]},START_END:{value:[26,41,11,14]},MIN_ENCODED_CHARS:{value:4},MAX_ACCEPTABLE:{value:2},PADDING:{value:1.5},FORMAT:{value:"codabar",writeable:!1}};return b.prototype=Object.create(a.prototype,c),b.prototype.constructor=b,b.prototype._decode=function(){var a,b,c,d,e,f=this,g=[];if(this._counters=f._fillCounters(),a=f._findStart(),!a)return null;d=a.startCounter;do{if(c=f._toPattern(d),0>c)return null;if(b=f._patternToChar(c),0>b)return null;if(g.push(b),d+=8,g.length>1&&f._isStartEnd(c))break}while(df._counters.length?f._counters.length:d,e=a.start+f._sumCounters(a.startCounter,d-8),{code:g.join(""),start:a.start,end:e,startInfo:a,decodedCodes:g}):null},b.prototype._verifyWhitespace=function(a,b){return(0>=a-1||this._counters[a-1]>=this._calculatePatternLength(a)/2)&&(b+8>=this._counters.length||this._counters[b+7]>=this._calculatePatternLength(b)/2)?!0:!1},b.prototype._calculatePatternLength=function(a){var b,c=0;for(b=a;a+7>b;b++)c+=this._counters[b];return c},b.prototype._thresholdResultPattern=function(a,b){var c,d,e,f,g,h=this,i={space:{narrow:{size:0,counts:0,min:0,max:Number.MAX_VALUE},wide:{size:0,counts:0,min:0,max:Number.MAX_VALUE}},bar:{narrow:{size:0,counts:0,min:0,max:Number.MAX_VALUE},wide:{size:0,counts:0,min:0,max:Number.MAX_VALUE}}},j=b;for(e=0;e=0;f--)c=2===(1&f)?i.bar:i.space,d=1===(1&g)?c.wide:c.narrow,d.size+=h._counters[j+f],d.counts++,g>>=1;j+=8}return["space","bar"].forEach(function(a){var 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t[0]=r*f+a*l,t[1]=o*f+i*l,t[2]=r*s+a*d,t[3]=o*s+i*d,t[4]=r*h+a*p+u,t[5]=o*h+i*p+c,t},o.mul=o.multiply,o.rotate=function(t,e,n){var r=e[0],o=e[1],a=e[2],i=e[3],u=e[4],c=e[5],f=Math.sin(n),l=Math.cos(n);return t[0]=r*l+a*f,t[1]=o*l+i*f,t[2]=r*-f+a*l,t[3]=o*-f+i*l,t[4]=u,t[5]=c,t},o.scale=function(t,e,n){var r=e[0],o=e[1],a=e[2],i=e[3],u=e[4],c=e[5],f=n[0],l=n[1];return t[0]=r*f,t[1]=o*f,t[2]=a*l,t[3]=i*l,t[4]=u,t[5]=c,t},o.translate=function(t,e,n){var r=e[0],o=e[1],a=e[2],i=e[3],u=e[4],c=e[5],f=n[0],l=n[1];return t[0]=r,t[1]=o,t[2]=a,t[3]=i,t[4]=r*f+a*l+u,t[5]=o*f+i*l+c,t},o.fromRotation=function(t,e){var n=Math.sin(e),r=Math.cos(e);return t[0]=r,t[1]=n,t[2]=-n,t[3]=r,t[4]=0,t[5]=0,t},o.fromScaling=function(t,e){return t[0]=e[0],t[1]=0,t[2]=0,t[3]=e[1],t[4]=0,t[5]=0,t},o.fromTranslation=function(t,e){return t[0]=1,t[1]=0,t[2]=0,t[3]=1,t[4]=e[0],t[5]=e[1],t},o.str=function(t){return"mat2d("+t[0]+", "+t[1]+", "+t[2]+", "+t[3]+", "+t[4]+", "+t[5]+")"},o.frob=function(t){return Math.sqrt(Math.pow(t[0],2)+Math.pow(t[1],2)+Math.pow(t[2],2)+Math.pow(t[3],2)+Math.pow(t[4],2)+Math.pow(t[5],2)+1)},t.exports=o},function(t,e,n){var r=n(10),o={};o.create=function(){var t=new r.ARRAY_TYPE(9);return t[0]=1,t[1]=0,t[2]=0,t[3]=0,t[4]=1,t[5]=0,t[6]=0,t[7]=0,t[8]=1,t},o.fromMat4=function(t,e){return t[0]=e[0],t[1]=e[1],t[2]=e[2],t[3]=e[4],t[4]=e[5],t[5]=e[6],t[6]=e[8],t[7]=e[9],t[8]=e[10],t},o.clone=function(t){var e=new r.ARRAY_TYPE(9);return e[0]=t[0],e[1]=t[1],e[2]=t[2],e[3]=t[3],e[4]=t[4],e[5]=t[5],e[6]=t[6],e[7]=t[7],e[8]=t[8],e},o.copy=function(t,e){return t[0]=e[0],t[1]=e[1],t[2]=e[2],t[3]=e[3],t[4]=e[4],t[5]=e[5],t[6]=e[6],t[7]=e[7],t[8]=e[8],t},o.identity=function(t){return t[0]=1,t[1]=0,t[2]=0,t[3]=0,t[4]=1,t[5]=0,t[6]=0,t[7]=0,t[8]=1,t},o.transpose=function(t,e){if(t===e){var n=e[1],r=e[2],o=e[5];t[1]=e[3],t[2]=e[6],t[3]=n,t[5]=e[7],t[6]=r,t[7]=o}else t[0]=e[0],t[1]=e[3],t[2]=e[6],t[3]=e[1],t[4]=e[4],t[5]=e[7],t[6]=e[2],t[7]=e[5],t[8]=e[8];return t},o.invert=function(t,e){var n=e[0],r=e[1],o=e[2],a=e[3],i=e[4],u=e[5],c=e[6],f=e[7],l=e[8],s=l*i-u*f,d=-l*a+u*c,h=f*a-i*c,p=n*s+r*d+o*h;return p?(p=1/p,t[0]=s*p,t[1]=(-l*r+o*f)*p,t[2]=(u*r-o*i)*p,t[3]=d*p,t[4]=(l*n-o*c)*p,t[5]=(-u*n+o*a)*p,t[6]=h*p,t[7]=(-f*n+r*c)*p,t[8]=(i*n-r*a)*p,t):null},o.adjoint=function(t,e){var n=e[0],r=e[1],o=e[2],a=e[3],i=e[4],u=e[5],c=e[6],f=e[7],l=e[8];return t[0]=i*l-u*f,t[1]=o*f-r*l,t[2]=r*u-o*i,t[3]=u*c-a*l,t[4]=n*l-o*c,t[5]=o*a-n*u,t[6]=a*f-i*c,t[7]=r*c-n*f,t[8]=n*i-r*a,t},o.determinant=function(t){var e=t[0],n=t[1],r=t[2],o=t[3],a=t[4],i=t[5],u=t[6],c=t[7],f=t[8];return e*(f*a-i*c)+n*(-f*o+i*u)+r*(c*o-a*u)},o.multiply=function(t,e,n){var r=e[0],o=e[1],a=e[2],i=e[3],u=e[4],c=e[5],f=e[6],l=e[7],s=e[8],d=n[0],h=n[1],p=n[2],v=n[3],g=n[4],m=n[5],y=n[6],_=n[7],x=n[8];return t[0]=d*r+h*i+p*f,t[1]=d*o+h*u+p*l,t[2]=d*a+h*c+p*s,t[3]=v*r+g*i+m*f,t[4]=v*o+g*u+m*l,t[5]=v*a+g*c+m*s,t[6]=y*r+_*i+x*f,t[7]=y*o+_*u+x*l,t[8]=y*a+_*c+x*s,t},o.mul=o.multiply,o.translate=function(t,e,n){var r=e[0],o=e[1],a=e[2],i=e[3],u=e[4],c=e[5],f=e[6],l=e[7],s=e[8],d=n[0],h=n[1];return t[0]=r,t[1]=o,t[2]=a,t[3]=i,t[4]=u,t[5]=c,t[6]=d*r+h*i+f,t[7]=d*o+h*u+l,t[8]=d*a+h*c+s,t},o.rotate=function(t,e,n){var r=e[0],o=e[1],a=e[2],i=e[3],u=e[4],c=e[5],f=e[6],l=e[7],s=e[8],d=Math.sin(n),h=Math.cos(n);return t[0]=h*r+d*i,t[1]=h*o+d*u,t[2]=h*a+d*c,t[3]=h*i-d*r,t[4]=h*u-d*o,t[5]=h*c-d*a,t[6]=f,t[7]=l,t[8]=s,t},o.scale=function(t,e,n){var r=n[0],o=n[1];return t[0]=r*e[0],t[1]=r*e[1],t[2]=r*e[2],t[3]=o*e[3],t[4]=o*e[4],t[5]=o*e[5],t[6]=e[6],t[7]=e[7],t[8]=e[8],t},o.fromTranslation=function(t,e){return t[0]=1,t[1]=0,t[2]=0,t[3]=0,t[4]=1,t[5]=0,t[6]=e[0],t[7]=e[1],t[8]=1,t},o.fromRotation=function(t,e){var n=Math.sin(e),r=Math.cos(e);return t[0]=r,t[1]=n,t[2]=0,t[3]=-n,t[4]=r,t[5]=0,t[6]=0,t[7]=0,t[8]=1,t},o.fromScaling=function(t,e){return t[0]=e[0],t[1]=0,t[2]=0,t[3]=0,t[4]=e[1],t[5]=0,t[6]=0,t[7]=0,t[8]=1,t},o.fromMat2d=function(t,e){return t[0]=e[0],t[1]=e[1],t[2]=0,t[3]=e[2],t[4]=e[3],t[5]=0,t[6]=e[4],t[7]=e[5],t[8]=1,t},o.fromQuat=function(t,e){var n=e[0],r=e[1],o=e[2],a=e[3],i=n+n,u=r+r,c=o+o,f=n*i,l=r*i,s=r*u,d=o*i,h=o*u,p=o*c,v=a*i,g=a*u,m=a*c;return t[0]=1-s-p,t[3]=l-m,t[6]=d+g,t[1]=l+m,t[4]=1-f-p,t[7]=h-v,t[2]=d-g,t[5]=h+v,t[8]=1-f-s,t},o.normalFromMat4=function(t,e){var n=e[0],r=e[1],o=e[2],a=e[3],i=e[4],u=e[5],c=e[6],f=e[7],l=e[8],s=e[9],d=e[10],h=e[11],p=e[12],v=e[13],g=e[14],m=e[15],y=n*u-r*i,_=n*c-o*i,x=n*f-a*i,M=r*c-o*u,b=r*f-a*u,w=o*f-a*c,R=l*v-s*p,A=l*g-d*p,E=l*m-h*p,C=s*g-d*v,O=s*m-h*v,T=d*m-h*g,D=y*T-_*O+x*C+M*E-b*A+w*R;return D?(D=1/D,t[0]=(u*T-c*O+f*C)*D,t[1]=(c*E-i*T-f*A)*D,t[2]=(i*O-u*E+f*R)*D,t[3]=(o*O-r*T-a*C)*D,t[4]=(n*T-o*E+a*A)*D,t[5]=(r*E-n*O-a*R)*D,t[6]=(v*w-g*b+m*M)*D,t[7]=(g*x-p*w-m*_)*D, +t[8]=(p*b-v*x+m*y)*D,t):null},o.str=function(t){return"mat3("+t[0]+", "+t[1]+", "+t[2]+", "+t[3]+", "+t[4]+", "+t[5]+", "+t[6]+", "+t[7]+", "+t[8]+")"},o.frob=function(t){return Math.sqrt(Math.pow(t[0],2)+Math.pow(t[1],2)+Math.pow(t[2],2)+Math.pow(t[3],2)+Math.pow(t[4],2)+Math.pow(t[5],2)+Math.pow(t[6],2)+Math.pow(t[7],2)+Math.pow(t[8],2))},t.exports=o},function(t,e,n){var r=n(10),o={};o.create=function(){var t=new r.ARRAY_TYPE(16);return t[0]=1,t[1]=0,t[2]=0,t[3]=0,t[4]=0,t[5]=1,t[6]=0,t[7]=0,t[8]=0,t[9]=0,t[10]=1,t[11]=0,t[12]=0,t[13]=0,t[14]=0,t[15]=1,t},o.clone=function(t){var e=new r.ARRAY_TYPE(16);return e[0]=t[0],e[1]=t[1],e[2]=t[2],e[3]=t[3],e[4]=t[4],e[5]=t[5],e[6]=t[6],e[7]=t[7],e[8]=t[8],e[9]=t[9],e[10]=t[10],e[11]=t[11],e[12]=t[12],e[13]=t[13],e[14]=t[14],e[15]=t[15],e},o.copy=function(t,e){return t[0]=e[0],t[1]=e[1],t[2]=e[2],t[3]=e[3],t[4]=e[4],t[5]=e[5],t[6]=e[6],t[7]=e[7],t[8]=e[8],t[9]=e[9],t[10]=e[10],t[11]=e[11],t[12]=e[12],t[13]=e[13],t[14]=e[14],t[15]=e[15],t},o.identity=function(t){return t[0]=1,t[1]=0,t[2]=0,t[3]=0,t[4]=0,t[5]=1,t[6]=0,t[7]=0,t[8]=0,t[9]=0,t[10]=1,t[11]=0,t[12]=0,t[13]=0,t[14]=0,t[15]=1,t},o.transpose=function(t,e){if(t===e){var n=e[1],r=e[2],o=e[3],a=e[6],i=e[7],u=e[11];t[1]=e[4],t[2]=e[8],t[3]=e[12],t[4]=n,t[6]=e[9],t[7]=e[13],t[8]=r,t[9]=a,t[11]=e[14],t[12]=o,t[13]=i,t[14]=u}else t[0]=e[0],t[1]=e[4],t[2]=e[8],t[3]=e[12],t[4]=e[1],t[5]=e[5],t[6]=e[9],t[7]=e[13],t[8]=e[2],t[9]=e[6],t[10]=e[10],t[11]=e[14],t[12]=e[3],t[13]=e[7],t[14]=e[11],t[15]=e[15];return t},o.invert=function(t,e){var n=e[0],r=e[1],o=e[2],a=e[3],i=e[4],u=e[5],c=e[6],f=e[7],l=e[8],s=e[9],d=e[10],h=e[11],p=e[12],v=e[13],g=e[14],m=e[15],y=n*u-r*i,_=n*c-o*i,x=n*f-a*i,M=r*c-o*u,b=r*f-a*u,w=o*f-a*c,R=l*v-s*p,A=l*g-d*p,E=l*m-h*p,C=s*g-d*v,O=s*m-h*v,T=d*m-h*g,D=y*T-_*O+x*C+M*E-b*A+w*R;return D?(D=1/D,t[0]=(u*T-c*O+f*C)*D,t[1]=(o*O-r*T-a*C)*D,t[2]=(v*w-g*b+m*M)*D,t[3]=(d*b-s*w-h*M)*D,t[4]=(c*E-i*T-f*A)*D,t[5]=(n*T-o*E+a*A)*D,t[6]=(g*x-p*w-m*_)*D,t[7]=(l*w-d*x+h*_)*D,t[8]=(i*O-u*E+f*R)*D,t[9]=(r*E-n*O-a*R)*D,t[10]=(p*b-v*x+m*y)*D,t[11]=(s*x-l*b-h*y)*D,t[12]=(u*A-i*C-c*R)*D,t[13]=(n*C-r*A+o*R)*D,t[14]=(v*_-p*M-g*y)*D,t[15]=(l*M-s*_+d*y)*D,t):null},o.adjoint=function(t,e){var n=e[0],r=e[1],o=e[2],a=e[3],i=e[4],u=e[5],c=e[6],f=e[7],l=e[8],s=e[9],d=e[10],h=e[11],p=e[12],v=e[13],g=e[14],m=e[15];return t[0]=u*(d*m-h*g)-s*(c*m-f*g)+v*(c*h-f*d),t[1]=-(r*(d*m-h*g)-s*(o*m-a*g)+v*(o*h-a*d)),t[2]=r*(c*m-f*g)-u*(o*m-a*g)+v*(o*f-a*c),t[3]=-(r*(c*h-f*d)-u*(o*h-a*d)+s*(o*f-a*c)),t[4]=-(i*(d*m-h*g)-l*(c*m-f*g)+p*(c*h-f*d)),t[5]=n*(d*m-h*g)-l*(o*m-a*g)+p*(o*h-a*d),t[6]=-(n*(c*m-f*g)-i*(o*m-a*g)+p*(o*f-a*c)),t[7]=n*(c*h-f*d)-i*(o*h-a*d)+l*(o*f-a*c),t[8]=i*(s*m-h*v)-l*(u*m-f*v)+p*(u*h-f*s),t[9]=-(n*(s*m-h*v)-l*(r*m-a*v)+p*(r*h-a*s)),t[10]=n*(u*m-f*v)-i*(r*m-a*v)+p*(r*f-a*u),t[11]=-(n*(u*h-f*s)-i*(r*h-a*s)+l*(r*f-a*u)),t[12]=-(i*(s*g-d*v)-l*(u*g-c*v)+p*(u*d-c*s)),t[13]=n*(s*g-d*v)-l*(r*g-o*v)+p*(r*d-o*s),t[14]=-(n*(u*g-c*v)-i*(r*g-o*v)+p*(r*c-o*u)),t[15]=n*(u*d-c*s)-i*(r*d-o*s)+l*(r*c-o*u),t},o.determinant=function(t){var e=t[0],n=t[1],r=t[2],o=t[3],a=t[4],i=t[5],u=t[6],c=t[7],f=t[8],l=t[9],s=t[10],d=t[11],h=t[12],p=t[13],v=t[14],g=t[15],m=e*i-n*a,y=e*u-r*a,_=e*c-o*a,x=n*u-r*i,M=n*c-o*i,b=r*c-o*u,w=f*p-l*h,R=f*v-s*h,A=f*g-d*h,E=l*v-s*p,C=l*g-d*p,O=s*g-d*v;return m*O-y*C+_*E+x*A-M*R+b*w},o.multiply=function(t,e,n){var r=e[0],o=e[1],a=e[2],i=e[3],u=e[4],c=e[5],f=e[6],l=e[7],s=e[8],d=e[9],h=e[10],p=e[11],v=e[12],g=e[13],m=e[14],y=e[15],_=n[0],x=n[1],M=n[2],b=n[3];return t[0]=_*r+x*u+M*s+b*v,t[1]=_*o+x*c+M*d+b*g,t[2]=_*a+x*f+M*h+b*m,t[3]=_*i+x*l+M*p+b*y,_=n[4],x=n[5],M=n[6],b=n[7],t[4]=_*r+x*u+M*s+b*v,t[5]=_*o+x*c+M*d+b*g,t[6]=_*a+x*f+M*h+b*m,t[7]=_*i+x*l+M*p+b*y,_=n[8],x=n[9],M=n[10],b=n[11],t[8]=_*r+x*u+M*s+b*v,t[9]=_*o+x*c+M*d+b*g,t[10]=_*a+x*f+M*h+b*m,t[11]=_*i+x*l+M*p+b*y,_=n[12],x=n[13],M=n[14],b=n[15],t[12]=_*r+x*u+M*s+b*v,t[13]=_*o+x*c+M*d+b*g,t[14]=_*a+x*f+M*h+b*m,t[15]=_*i+x*l+M*p+b*y,t},o.mul=o.multiply,o.translate=function(t,e,n){var r,o,a,i,u,c,f,l,s,d,h,p,v=n[0],g=n[1],m=n[2];return 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i},Object.defineProperty(n.prototype,"FORMAT",{value:"unknown",writeable:!1}),n.DIRECTION={FORWARD:1,REVERSE:-1},n.Exception={StartNotFoundException:"Start-Info was not found!",CodeNotFoundException:"Code could not be found!",PatternNotFoundException:"Pattern could not be found!"},n.CONFIG_KEYS={},e["default"]=n,t.exports=e["default"]},function(t,e,n){"use strict";function r(t){return t&&t.__esModule?t:{"default":t}}function o(t){i["default"].call(this,t)}Object.defineProperty(e,"__esModule",{value:!0});var a=n(28),i=r(a),u={CODE_L_START:{value:0},MODULO:{value:7},CODE_G_START:{value:10},START_PATTERN:{value:[1/3*7,1/3*7,1/3*7]},STOP_PATTERN:{value:[1/3*7,1/3*7,1/3*7]},MIDDLE_PATTERN:{value:[.2*7,.2*7,.2*7,.2*7,.2*7]},CODE_PATTERN:{value:[[3,2,1,1],[2,2,2,1],[2,1,2,2],[1,4,1,1],[1,1,3,2],[1,2,3,1],[1,1,1,4],[1,3,1,2],[1,2,1,3],[3,1,1,2],[1,1,2,3],[1,2,2,2],[2,2,1,2],[1,1,4,1],[2,3,1,1],[1,3,2,1],[4,1,1,1],[2,1,3,1],[3,1,2,1],[2,1,1,3]]},CODE_FREQUENCY:{value:[0,11,13,14,19,25,28,21,22,26]},SINGLE_CODE_ERROR:{value:.67},AVG_CODE_ERROR:{value:.27},FORMAT:{value:"ean_13",writeable:!1}};o.prototype=Object.create(i["default"].prototype,u),o.prototype.constructor=o,o.prototype._decodeCode=function(t,e){var n,r,o,a,i=[0,0,0,0],u=this,c=t,f=!u._row[c],l=0,s={error:Number.MAX_VALUE,code:-1,start:t,end:t};for(e||(e=u.CODE_PATTERN.length),n=c;nr;r++)o=u._matchPattern(a,u.CODE_PATTERN[r]),ou.AVG_CODE_ERROR?null:s}}else l++;i[l]=1,f=!f}return null},o.prototype._findPattern=function(t,e,n,r,o){var a,i,u,c,f,l=[],s=this,d=0,h={error:Number.MAX_VALUE,code:-1,start:0,end:0};for(e||(e=s._nextSet(s._row)),void 0===n&&(n=!1),void 0===r&&(r=!0),void 0===o&&(o=s.AVG_CODE_ERROR),a=0;ai))return h.error=i,h.start=a-c,h.end=a,h;if(!r)return null;for(u=0;u=0&&n._matchRange(t,e.start,0))return e;r=e.end,e=null}},o.prototype._verifyTrailingWhitespace=function(t){var e,n=this;return e=t.end+(t.end-t.start),er;r++){if(t=a._decodeCode(t.end),!t)return null;t.code>=a.CODE_G_START?(t.code=t.code-a.CODE_G_START,i|=1<<5-r):i|=0<<5-r,e.push(t.code),n.push(t)}if(o=a._calculateFirstDigit(i),null===o)return null;if(e.unshift(o),t=a._findPattern(a.MIDDLE_PATTERN,t.end,!0,!1),null===t)return null;for(n.push(t),r=0;6>r;r++){if(t=a._decodeCode(t.end,a.CODE_G_START),!t)return null;n.push(t),e.push(t.code)}return t},o.prototype._decode=function(){var t,e,n=this,r=[],o=[];return(t=n._findStart())?(e={code:t.code,start:t.start,end:t.end},o.push(e),(e=n._decodePayload(e,r,o))&&(e=n._findEnd(e.end,!1))?(o.push(e),n._checksum(r)?{code:r.join(""),start:t.start,end:e.end,codeset:"",startInfo:t,decodedCodes:o}:null):null):null},o.prototype._checksum=function(t){var e,n=0;for(e=t.length-2;e>=0;e-=2)n+=t[e];for(n*=3,e=t.length-1;e>=0;e-=2)n+=t[e];return n%10===0},e["default"]=o,t.exports=e["default"]},function(t,e,n){"use strict";function r(t){return t&&t.__esModule?t:{"default":t}}function o(){i["default"].call(this)}Object.defineProperty(e,"__esModule",{value:!0});var a=n(28),i=r(a),u=n(19),c=r(u),f={ALPHABETH_STRING:{value:"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ-. 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null;i.push(t),e=r,r+=c["default"].sum(a),r=o._nextSet(o._row,r)}while("*"!==t);return i.pop(),i.length&&o._verifyTrailingWhitespace(e,r,a)?{code:i.join(""),start:u.start,end:r,startInfo:u,decodedCodes:i}:null},o.prototype._verifyTrailingWhitespace=function(t,e,n){var r,o=c["default"].sum(n);return r=e-t-o,3*r>=o?!0:!1},o.prototype._patternToChar=function(t){var e,n=this;for(e=0;ee&&(r=t[n]);return r},o.prototype._toPattern=function(t){for(var e,n,r=t.length,o=0,a=r,i=0,u=this;a>3;){for(o=u._findNextWidth(t,o),a=0,e=0,n=0;r>n;n++)t[n]>o&&(e|=1<n&&a>0;n++)if(t[n]>o&&(a--,2*t[n]>=i))return-1;return e}}return-1},o.prototype._findStart=function(){var t,e,n,r=this,o=r._nextSet(r._row),a=o,i=[0,0,0,0,0,0,0,0,0],u=0,c=!1;for(t=o;te;e++)i[e]=i[e+2];i[7]=0,i[8]=0,u--}else u++;i[u]=1,c=!c}return null},e["default"]=o,t.exports=e["default"]},function(t,e,n){"use strict";function r(t){return t&&t.__esModule?t:{"default":t}}function 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a=n(28),i=r(a),u={ALPHABETH_STRING:{value:"0123456789-$:/.+ABCD"},ALPHABET:{value:[48,49,50,51,52,53,54,55,56,57,45,36,58,47,46,43,65,66,67,68]},CHARACTER_ENCODINGS:{value:[3,6,9,96,18,66,33,36,48,72,12,24,69,81,84,21,26,41,11,14]},START_END:{value:[26,41,11,14]},MIN_ENCODED_CHARS:{value:4},MAX_ACCEPTABLE:{value:2},PADDING:{value:1.5},FORMAT:{value:"codabar",writeable:!1}};o.prototype=Object.create(i["default"].prototype,u),o.prototype.constructor=o,o.prototype._decode=function(){var t,e,n,r,o,a=this,i=[];if(this._counters=a._fillCounters(),t=a._findStart(),!t)return null;r=t.startCounter;do{if(n=a._toPattern(r),0>n)return null;if(e=a._patternToChar(n),0>e)return 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+//# sourceMappingURL=quagga.map \ No newline at end of file diff --git a/package.json b/package.json index 5dd7a810..f77242be 100644 --- a/package.json +++ b/package.json @@ -6,6 +6,9 @@ "browser": "dist/quagga.js", "devDependencies": { "async": "^1.4.2", + "babel-core": "^5.8.25", + "babel-eslint": "^4.1.3", + "babel-loader": "^5.3.2", "chai": "^3.2.0", "grunt": "^0.4.5", "grunt-contrib-jshint": "^0.11.3", @@ -23,7 +26,9 @@ "karma-sinon": "^1.0.4", "karma-sinon-chai": "~0.2.0", "mocha": "^2.3.2", - "sinon": "^1.16.1" + "sinon": "^1.16.1", + "webpack": "^1.12.2", + "webpack-core": "^0.6.7" }, "directories": { "doc": "doc" @@ -56,8 +61,8 @@ "dependencies": { "get-pixels": "^3.2.3", "gl-matrix": "^2.3.1", + "lodash": "^3.10.1", "ndarray": "^1.0.18", - "ndarray-linear-interpolate": "^1.0.0", - "requirejs": "^2.1.20" + "ndarray-linear-interpolate": "^1.0.0" } } diff --git a/plugins/umd.js b/plugins/umd.js new file mode 100644 index 00000000..7706aea3 --- /dev/null +++ b/plugins/umd.js @@ -0,0 +1,35 @@ +var ConcatSource = require("webpack-core/lib/ConcatSource"); +var OriginalSource = require("webpack-core/lib/OriginalSource"); + +function MyUmdPlugin(options) { + this.name = options.library; + console.log(this.name); +} +module.exports = MyUmdPlugin; +MyUmdPlugin.prototype.apply = function(compiler) { + compiler.plugin("this-compilation", function(compilation) { + var mainTemplate = compilation.mainTemplate; + console.log("Compilation: " + (typeof compilation.templatesPlugin)); + compilation.templatesPlugin("render-with-entry", function(source, chunk, hash) { + + var amdFactory = "factory"; + return new ConcatSource(new OriginalSource( + "(function webpackUniversalModuleDefinition(root, factory) {\n" + + " if(typeof exports === 'object' && typeof module === 'object')\n" + + " module.exports = factory(factory.toString());\n" + + " else if(typeof exports === 'object')\n" + + " exports[\"" + this.name + "\"] = factory(factory.toString());\n" + + " else\n" + + " root[\"" + this.name + "\"] = factory(factory.toString());\n" + + "})(this, function(__factorySource__) {\nreturn ", "webpack/myModuleDefinition"), source, "\n});\n"); + }.bind(this)); + mainTemplate.plugin("global-hash-paths", function(paths) { + if(this.name) paths = paths.concat(this.name); + return paths; + }.bind(this)); + mainTemplate.plugin("hash", function(hash) { + hash.update("umd"); + hash.update(this.name + ""); + }.bind(this)); + }.bind(this)); +}; diff --git a/src/array_helper.js b/src/array_helper.js index 398830dd..f3e536b6 100644 --- a/src/array_helper.js +++ b/src/array_helper.js @@ -1,86 +1,79 @@ -/* jshint undef: true, unused: true, browser:true, devel: true */ -/* global define */ - -define(function() { - "use strict"; - - return { - init : function(arr, val) { - var l = arr.length; - while (l--) { - arr[l] = val; - } - }, +export default { + init : function(arr, val) { + var l = arr.length; + while (l--) { + arr[l] = val; + } + }, - /** - * Shuffles the content of an array - * @return {Array} the array itself shuffled - */ - shuffle : function(arr) { - var i = arr.length - 1, j, x; - for (i; i >= 0; i--) { - j = Math.floor(Math.random() * i); - x = arr[i]; - arr[i] = arr[j]; - arr[j] = x; - } - return arr; - }, + /** + * Shuffles the content of an array + * @return {Array} the array itself shuffled + */ + shuffle : function(arr) { + var i = arr.length - 1, j, x; + for (i; i >= 0; i--) { + j = Math.floor(Math.random() * i); + x = arr[i]; + arr[i] = arr[j]; + arr[j] = x; + } + return arr; + }, - toPointList : function(arr) { - var i, j, row = [], rows = []; - for ( i = 0; i < arr.length; i++) { - row = []; - for ( j = 0; j < arr[i].length; j++) { - row[j] = arr[i][j]; - } - rows[i] = "[" + row.join(",") + "]"; + toPointList : function(arr) { + var i, j, row = [], rows = []; + for ( i = 0; i < arr.length; i++) { + row = []; + for ( j = 0; j < arr[i].length; j++) { + row[j] = arr[i][j]; } - return "[" + rows.join(",\r\n") + "]"; - }, + rows[i] = "[" + row.join(",") + "]"; + } + return "[" + rows.join(",\r\n") + "]"; + }, - /** - * returns the elements which's score is bigger than the threshold - * @return {Array} the reduced array - */ - threshold : function(arr, threshold, scoreFunc) { - var i, queue = []; - for ( i = 0; i < arr.length; i++) { - if (scoreFunc.apply(arr, [arr[i]]) >= threshold) { - queue.push(arr[i]); - } + /** + * returns the elements which's score is bigger than the threshold + * @return {Array} the reduced array + */ + threshold : function(arr, threshold, scoreFunc) { + var i, queue = []; + for ( i = 0; i < arr.length; i++) { + if (scoreFunc.apply(arr, [arr[i]]) >= threshold) { + queue.push(arr[i]); } - return queue; - }, + } + return queue; + }, - maxIndex : function(arr) { - var i, max = 0; - for ( i = 0; i < arr.length; i++) { - if (arr[i] > arr[max]) { - max = i; - } + maxIndex : function(arr) { + var i, max = 0; + for ( i = 0; i < arr.length; i++) { + if (arr[i] > arr[max]) { + max = i; } - return max; - }, + } + return max; + }, - max : function(arr) { - var i, max = 0; - for ( i = 0; i < arr.length; i++) { - if (arr[i] > max) { - max = arr[i]; - } + max : function(arr) { + var i, max = 0; + for ( i = 0; i < arr.length; i++) { + if (arr[i] > max) { + max = arr[i]; } - return max; - }, + } + return max; + }, - sum: function(arr) { - var length = arr.length, - sum = 0; + sum: function(arr) { + var length = arr.length, + sum = 0; - while(length--) { - sum += arr[length]; - } - return sum; + while(length--) { + sum += arr[length]; } - }; -}); \ No newline at end of file + return sum; + } +}; diff --git a/src/barcode_decoder.js b/src/barcode_decoder.js index 2117d492..2c0405ce 100644 --- a/src/barcode_decoder.js +++ b/src/barcode_decoder.js @@ -1,305 +1,285 @@ -/* jshint undef: true, unused: true, browser:true, devel: true */ -/* global define */ +import Bresenham from './bresenham'; +import ImageDebug from './image_debug'; +import Code128Reader from './code_128_reader'; +import EANReader from './ean_reader'; +import Code39Reader from './code_39_reader'; +import Code39VINReader from './code_39_vin_reader'; +import CodabarReader from './codabar_reader'; +import UPCReader from './upc_reader'; +import EAN8Reader from './ean_8_reader'; +import UPCEReader from './upc_e_reader'; +import I2of5Reader from './i2of5_reader'; -define([ - "bresenham", - "image_debug", - 'code_128_reader', - 'ean_reader', - 'code_39_reader', - 'code_39_vin_reader', - 'codabar_reader', - 'upc_reader', - 'ean_8_reader', - 'upc_e_reader', - 'i2of5_reader' -], function( - Bresenham, - ImageDebug, - Code128Reader, - EANReader, - Code39Reader, - Code39VINReader, - CodabarReader, - UPCReader, - EAN8Reader, - UPCEReader, - I2of5Reader) { - "use strict"; - - var readers = { - code_128_reader: Code128Reader, - ean_reader: EANReader, - ean_8_reader: EAN8Reader, - code_39_reader: Code39Reader, - code_39_vin_reader: Code39VINReader, - codabar_reader: CodabarReader, - upc_reader: UPCReader, - upc_e_reader: UPCEReader, - i2of5_reader: I2of5Reader - }; - var BarcodeDecoder = { - create : function(config, inputImageWrapper) { - var _canvas = { - ctx : { - frequency : null, - pattern : null, - overlay : null - }, - dom : { - frequency : null, - pattern : null, - overlay : null - } +var readers = { + code_128_reader: Code128Reader, + ean_reader: EANReader, + ean_8_reader: EAN8Reader, + code_39_reader: Code39Reader, + code_39_vin_reader: Code39VINReader, + codabar_reader: CodabarReader, + upc_reader: UPCReader, + upc_e_reader: UPCEReader, + i2of5_reader: I2of5Reader +}; +export default { + create : function(config, inputImageWrapper) { + var _canvas = { + ctx : { + frequency : null, + pattern : null, + overlay : null }, - _barcodeReaders = []; + dom : { + frequency : null, + pattern : null, + overlay : null + } + }, + _barcodeReaders = []; - initCanvas(); - initReaders(); - initConfig(); + initCanvas(); + initReaders(); + initConfig(); - function initCanvas() { - if (typeof document !== 'undefined') { - var $debug = document.querySelector("#debug.detection"); - _canvas.dom.frequency = document.querySelector("canvas.frequency"); - if (!_canvas.dom.frequency) { - _canvas.dom.frequency = document.createElement("canvas"); - _canvas.dom.frequency.className = "frequency"; - if($debug) { - $debug.appendChild(_canvas.dom.frequency); - } + function initCanvas() { + if (typeof document !== 'undefined') { + var $debug = document.querySelector("#debug.detection"); + _canvas.dom.frequency = document.querySelector("canvas.frequency"); + if (!_canvas.dom.frequency) { + _canvas.dom.frequency = document.createElement("canvas"); + _canvas.dom.frequency.className = "frequency"; + if($debug) { + $debug.appendChild(_canvas.dom.frequency); } - _canvas.ctx.frequency = _canvas.dom.frequency.getContext("2d"); + } + _canvas.ctx.frequency = _canvas.dom.frequency.getContext("2d"); - _canvas.dom.pattern = document.querySelector("canvas.patternBuffer"); - if (!_canvas.dom.pattern) { - _canvas.dom.pattern = document.createElement("canvas"); - _canvas.dom.pattern.className = "patternBuffer"; - if($debug) { - $debug.appendChild(_canvas.dom.pattern); - } + _canvas.dom.pattern = document.querySelector("canvas.patternBuffer"); + if (!_canvas.dom.pattern) { + _canvas.dom.pattern = document.createElement("canvas"); + _canvas.dom.pattern.className = "patternBuffer"; + if($debug) { + $debug.appendChild(_canvas.dom.pattern); } - _canvas.ctx.pattern = _canvas.dom.pattern.getContext("2d"); + } + _canvas.ctx.pattern = _canvas.dom.pattern.getContext("2d"); - _canvas.dom.overlay = document.querySelector("canvas.drawingBuffer"); - if (_canvas.dom.overlay) { - _canvas.ctx.overlay = _canvas.dom.overlay.getContext("2d"); - } + _canvas.dom.overlay = document.querySelector("canvas.drawingBuffer"); + if (_canvas.dom.overlay) { + _canvas.ctx.overlay = _canvas.dom.overlay.getContext("2d"); } } + } - function initReaders() { - config.readers.forEach(function(readerConfig) { - var reader, - config = {}; + function initReaders() { + config.readers.forEach(function(readerConfig) { + var reader, + config = {}; - if (typeof readerConfig === 'object') { - reader = readerConfig.format; - config = readerConfig.config; - } else if (typeof readerConfig === 'string') { - reader = readerConfig; - } - _barcodeReaders.push(new readers[reader](config)); - }); - console.log("Registered Readers: " + _barcodeReaders - .map(function(reader) {return JSON.stringify({format: reader.FORMAT, config: reader.config});}) - .join(', ')); - } + if (typeof readerConfig === 'object') { + reader = readerConfig.format; + config = readerConfig.config; + } else if (typeof readerConfig === 'string') { + reader = readerConfig; + } + _barcodeReaders.push(new readers[reader](config)); + }); + console.log("Registered Readers: " + _barcodeReaders + .map(function(reader) {return JSON.stringify({format: reader.FORMAT, config: reader.config});}) + .join(', ')); + } - function initConfig() { - if (typeof document !== 'undefined') { - var i, - vis = [{ - node : _canvas.dom.frequency, - prop : config.showFrequency - }, { - node : _canvas.dom.pattern, - prop : config.showPattern - }]; + function initConfig() { + if (typeof document !== 'undefined') { + var i, + vis = [{ + node : _canvas.dom.frequency, + prop : config.showFrequency + }, { + node : _canvas.dom.pattern, + prop : config.showPattern + }]; - for (i = 0; i < vis.length; i++) { - if (vis[i].prop === true) { - vis[i].node.style.display = "block"; - } else { - vis[i].node.style.display = "none"; - } + for (i = 0; i < vis.length; i++) { + if (vis[i].prop === true) { + vis[i].node.style.display = "block"; + } else { + vis[i].node.style.display = "none"; } } } + } - /** - * extend the line on both ends - * @param {Array} line - * @param {Number} angle - */ - function getExtendedLine(line, angle, ext) { - function extendLine(amount) { - var extension = { - y : amount * Math.sin(angle), - x : amount * Math.cos(angle) - }; - - line[0].y -= extension.y; - line[0].x -= extension.x; - line[1].y += extension.y; - line[1].x += extension.x; - } + /** + * extend the line on both ends + * @param {Array} line + * @param {Number} angle + */ + function getExtendedLine(line, angle, ext) { + function extendLine(amount) { + var extension = { + y : amount * Math.sin(angle), + x : amount * Math.cos(angle) + }; - // check if inside image - extendLine(ext); - while (ext > 1 && (!inputImageWrapper.inImageWithBorder(line[0], 0) || !inputImageWrapper.inImageWithBorder(line[1], 0))) { - ext -= Math.ceil(ext/2); - extendLine(-ext); - } - return line; + line[0].y -= extension.y; + line[0].x -= extension.x; + line[1].y += extension.y; + line[1].x += extension.x; } - function getLine(box) { - return [{ - x : (box[1][0] - box[0][0]) / 2 + box[0][0], - y : (box[1][1] - box[0][1]) / 2 + box[0][1] - }, { - x : (box[3][0] - box[2][0]) / 2 + box[2][0], - y : (box[3][1] - box[2][1]) / 2 + box[2][1] - }]; + // check if inside image + extendLine(ext); + while (ext > 1 && (!inputImageWrapper.inImageWithBorder(line[0], 0) || !inputImageWrapper.inImageWithBorder(line[1], 0))) { + ext -= Math.ceil(ext/2); + extendLine(-ext); } + return line; + } - function tryDecode(line) { - var result = null, - i, - barcodeLine = Bresenham.getBarcodeLine(inputImageWrapper, line[0], line[1]); + function getLine(box) { + return [{ + x : (box[1][0] - box[0][0]) / 2 + box[0][0], + y : (box[1][1] - box[0][1]) / 2 + box[0][1] + }, { + x : (box[3][0] - box[2][0]) / 2 + box[2][0], + y : (box[3][1] - box[2][1]) / 2 + box[2][1] + }]; + } - if (config.showFrequency) { - ImageDebug.drawPath(line, {x: 'x', y: 'y'}, _canvas.ctx.overlay, {color: 'red', lineWidth: 3}); - Bresenham.debug.printFrequency(barcodeLine.line, _canvas.dom.frequency); - } - Bresenham.toBinaryLine(barcodeLine); - if (config.showPattern) { - Bresenham.debug.printPattern(barcodeLine.line, _canvas.dom.pattern); - } + function tryDecode(line) { + var result = null, + i, + barcodeLine = Bresenham.getBarcodeLine(inputImageWrapper, line[0], line[1]); - for ( i = 0; i < _barcodeReaders.length && result === null; i++) { - result = _barcodeReaders[i].decodePattern(barcodeLine.line); - } - if(result === null){ - return null; - } - return { - codeResult: result, - barcodeLine: barcodeLine - }; + if (config.showFrequency) { + ImageDebug.drawPath(line, {x: 'x', y: 'y'}, _canvas.ctx.overlay, {color: 'red', lineWidth: 3}); + Bresenham.debug.printFrequency(barcodeLine.line, _canvas.dom.frequency); + } + Bresenham.toBinaryLine(barcodeLine); + if (config.showPattern) { + Bresenham.debug.printPattern(barcodeLine.line, _canvas.dom.pattern); + } + for ( i = 0; i < _barcodeReaders.length && result === null; i++) { + result = _barcodeReaders[i].decodePattern(barcodeLine.line); + } + if(result === null){ + return null; } + return { + codeResult: result, + barcodeLine: barcodeLine + }; - /** - * This method slices the given area apart and tries to detect a barcode-pattern - * for each slice. It returns the decoded barcode, or null if nothing was found - * @param {Array} box - * @param {Array} line - * @param {Number} lineAngle - */ - function tryDecodeBruteForce(box, line, lineAngle) { - var sideLength = Math.sqrt(Math.pow(box[1][0] - box[0][0], 2) + Math.pow((box[1][1] - box[0][1]), 2)), - i, - slices = 16, - result = null, - dir, - extension, - xdir = Math.sin(lineAngle), - ydir = Math.cos(lineAngle); + } - for ( i = 1; i < slices && result === null; i++) { - // move line perpendicular to angle - dir = sideLength / slices * i * (i % 2 === 0 ? -1 : 1); - extension = { - y : dir * xdir, - x : dir * ydir - }; - line[0].y += extension.x; - line[0].x -= extension.y; - line[1].y += extension.x; - line[1].x -= extension.y; + /** + * This method slices the given area apart and tries to detect a barcode-pattern + * for each slice. It returns the decoded barcode, or null if nothing was found + * @param {Array} box + * @param {Array} line + * @param {Number} lineAngle + */ + function tryDecodeBruteForce(box, line, lineAngle) { + var sideLength = Math.sqrt(Math.pow(box[1][0] - box[0][0], 2) + Math.pow((box[1][1] - box[0][1]), 2)), + i, + slices = 16, + result = null, + dir, + extension, + xdir = Math.sin(lineAngle), + ydir = Math.cos(lineAngle); - result = tryDecode(line); - } - return result; - } + for ( i = 1; i < slices && result === null; i++) { + // move line perpendicular to angle + dir = sideLength / slices * i * (i % 2 === 0 ? -1 : 1); + extension = { + y : dir * xdir, + x : dir * ydir + }; + line[0].y += extension.x; + line[0].x -= extension.y; + line[1].y += extension.x; + line[1].x -= extension.y; - function getLineLength(line) { - return Math.sqrt( - Math.pow(Math.abs(line[1].y - line[0].y), 2) + - Math.pow(Math.abs(line[1].x - line[0].x), 2)); + result = tryDecode(line); } + return result; + } - /** - * With the help of the configured readers (Code128 or EAN) this function tries to detect a - * valid barcode pattern within the given area. - * @param {Object} box The area to search in - * @returns {Object} the result {codeResult, line, angle, pattern, threshold} - */ - function decodeFromBoundingBox(box) { - var line, - lineAngle, - ctx = _canvas.ctx.overlay, - result, - lineLength; + function getLineLength(line) { + return Math.sqrt( + Math.pow(Math.abs(line[1].y - line[0].y), 2) + + Math.pow(Math.abs(line[1].x - line[0].x), 2)); + } - if (config.drawBoundingBox && ctx) { - ImageDebug.drawPath(box, {x: 0, y: 1}, ctx, {color: "blue", lineWidth: 2}); - } + /** + * With the help of the configured readers (Code128 or EAN) this function tries to detect a + * valid barcode pattern within the given area. + * @param {Object} box The area to search in + * @returns {Object} the result {codeResult, line, angle, pattern, threshold} + */ + function decodeFromBoundingBox(box) { + var line, + lineAngle, + ctx = _canvas.ctx.overlay, + result, + lineLength; - line = getLine(box); - lineLength = getLineLength(line); - lineAngle = Math.atan2(line[1].y - line[0].y, line[1].x - line[0].x); - line = getExtendedLine(line, lineAngle, Math.floor(lineLength*0.1)); - if(line === null){ - return null; - } + if (config.drawBoundingBox && ctx) { + ImageDebug.drawPath(box, {x: 0, y: 1}, ctx, {color: "blue", lineWidth: 2}); + } - result = tryDecode(line); - if(result === null) { - result = tryDecodeBruteForce(box, line, lineAngle); - } + line = getLine(box); + lineLength = getLineLength(line); + lineAngle = Math.atan2(line[1].y - line[0].y, line[1].x - line[0].x); + line = getExtendedLine(line, lineAngle, Math.floor(lineLength*0.1)); + if(line === null){ + return null; + } - if(result === null) { - return null; - } + result = tryDecode(line); + if(result === null) { + result = tryDecodeBruteForce(box, line, lineAngle); + } - if (result && config.drawScanline && ctx) { - ImageDebug.drawPath(line, {x: 'x', y: 'y'}, ctx, {color: 'red', lineWidth: 3}); - } + if(result === null) { + return null; + } - return { - codeResult : result.codeResult, - line : line, - angle : lineAngle, - pattern : result.barcodeLine.line, - threshold : result.barcodeLine.threshold - }; + if (result && config.drawScanline && ctx) { + ImageDebug.drawPath(line, {x: 'x', y: 'y'}, ctx, {color: 'red', lineWidth: 3}); } return { - decodeFromBoundingBox : function(box) { - return decodeFromBoundingBox(box); - }, - decodeFromBoundingBoxes : function(boxes) { - var i, result; - for ( i = 0; i < boxes.length; i++) { - result = decodeFromBoundingBox(boxes[i]); - if (result && result.codeResult) { - result.box = boxes[i]; - return result; - } - } - }, - setReaders: function(readers) { - config.readers = readers; - _barcodeReaders.length = 0; - initReaders(); - } + codeResult : result.codeResult, + line : line, + angle : lineAngle, + pattern : result.barcodeLine.line, + threshold : result.barcodeLine.threshold }; } - }; - return (BarcodeDecoder); -}); + return { + decodeFromBoundingBox : function(box) { + return decodeFromBoundingBox(box); + }, + decodeFromBoundingBoxes : function(boxes) { + var i, result; + for ( i = 0; i < boxes.length; i++) { + result = decodeFromBoundingBox(boxes[i]); + if (result && result.codeResult) { + result.box = boxes[i]; + return result; + } + } + }, + setReaders: function(readers) { + config.readers = readers; + _barcodeReaders.length = 0; + initReaders(); + } + }; + } +}; diff --git a/src/barcode_locator.js b/src/barcode_locator.js index 96a5628c..78a99bbb 100644 --- a/src/barcode_locator.js +++ b/src/barcode_locator.js @@ -1,561 +1,565 @@ /* jshint undef: true, unused: true, browser:true, devel: true */ /* global define */ -define("barcode_locator", ["image_wrapper", "cv_utils", "rasterizer", "tracer", "skeletonizer", "array_helper", "image_debug", "gl-matrix"], -function(ImageWrapper, CVUtils, Rasterizer, Tracer, skeletonizer, ArrayHelper, ImageDebug, glMatrix) { - - var _config, - _currentImageWrapper, - _skelImageWrapper, - _subImageWrapper, - _labelImageWrapper, - _patchGrid, - _patchLabelGrid, - _imageToPatchGrid, - _binaryImageWrapper, - _patchSize, - _canvasContainer = { - ctx : { - binary : null - }, - dom : { - binary : null - } +import ImageWrapper from './image_wrapper'; +import CVUtils from './cv_utils'; +import Rasterizer from './rasterizer'; +import Tracer from './tracer'; +import skeletonizer from './skeletonizer'; +import ArrayHelper from './array_helper'; +import ImageDebug from './image_debug'; +import glMatrix from 'gl-matrix'; + +var _config, + _currentImageWrapper, + _skelImageWrapper, + _subImageWrapper, + _labelImageWrapper, + _patchGrid, + _patchLabelGrid, + _imageToPatchGrid, + _binaryImageWrapper, + _patchSize, + _canvasContainer = { + ctx : { + binary : null }, - _numPatches = {x: 0, y: 0}, - _inputImageWrapper, - _skeletonizer, - vec2 = glMatrix.vec2, - mat2 = glMatrix.mat2, - self = this; - - function initBuffers() { - var skeletonImageData; - - if (_config.halfSample) { - _currentImageWrapper = new ImageWrapper({ - x : _inputImageWrapper.size.x / 2 | 0, - y : _inputImageWrapper.size.y / 2 | 0 - }); - } else { - _currentImageWrapper = _inputImageWrapper; + dom : { + binary : null } + }, + _numPatches = {x: 0, y: 0}, + _inputImageWrapper, + _skeletonizer, + vec2 = glMatrix.vec2, + mat2 = glMatrix.mat2, + self = (typeof window !== 'undefined') ? window : self; + +function initBuffers() { + var skeletonImageData; + + if (_config.halfSample) { + _currentImageWrapper = new ImageWrapper({ + x : _inputImageWrapper.size.x / 2 | 0, + y : _inputImageWrapper.size.y / 2 | 0 + }); + } else { + _currentImageWrapper = _inputImageWrapper; + } - _patchSize = CVUtils.calculatePatchSize(_config.patchSize, _currentImageWrapper.size); + _patchSize = CVUtils.calculatePatchSize(_config.patchSize, _currentImageWrapper.size); - _numPatches.x = _currentImageWrapper.size.x / _patchSize.x | 0; - _numPatches.y = _currentImageWrapper.size.y / _patchSize.y | 0; + _numPatches.x = _currentImageWrapper.size.x / _patchSize.x | 0; + _numPatches.y = _currentImageWrapper.size.y / _patchSize.y | 0; - _binaryImageWrapper = new ImageWrapper(_currentImageWrapper.size, undefined, Uint8Array, false); + _binaryImageWrapper = new ImageWrapper(_currentImageWrapper.size, undefined, Uint8Array, false); - _labelImageWrapper = new ImageWrapper(_patchSize, undefined, Array, true); + _labelImageWrapper = new ImageWrapper(_patchSize, undefined, Array, true); - skeletonImageData = new ArrayBuffer(64*1024); - _subImageWrapper = new ImageWrapper(_patchSize, new Uint8Array(skeletonImageData, 0, _patchSize.x * _patchSize.y)); - _skelImageWrapper = new ImageWrapper(_patchSize, new Uint8Array(skeletonImageData, _patchSize.x * _patchSize.y * 3, _patchSize.x * _patchSize.y), undefined, true); - _skeletonizer = skeletonizer(self, { - size : _patchSize.x - }, skeletonImageData); + skeletonImageData = new ArrayBuffer(64*1024); + _subImageWrapper = new ImageWrapper(_patchSize, new Uint8Array(skeletonImageData, 0, _patchSize.x * _patchSize.y)); + _skelImageWrapper = new ImageWrapper(_patchSize, new Uint8Array(skeletonImageData, _patchSize.x * _patchSize.y * 3, _patchSize.x * _patchSize.y), undefined, true); + _skeletonizer = skeletonizer(self, { + size : _patchSize.x + }, skeletonImageData); - _imageToPatchGrid = new ImageWrapper({ - x : (_currentImageWrapper.size.x / _subImageWrapper.size.x) | 0, - y : (_currentImageWrapper.size.y / _subImageWrapper.size.y) | 0 - }, undefined, Array, true); - _patchGrid = new ImageWrapper(_imageToPatchGrid.size, undefined, undefined, true); - _patchLabelGrid = new ImageWrapper(_imageToPatchGrid.size, undefined, Int32Array, true); - } + _imageToPatchGrid = new ImageWrapper({ + x : (_currentImageWrapper.size.x / _subImageWrapper.size.x) | 0, + y : (_currentImageWrapper.size.y / _subImageWrapper.size.y) | 0 + }, undefined, Array, true); + _patchGrid = new ImageWrapper(_imageToPatchGrid.size, undefined, undefined, true); + _patchLabelGrid = new ImageWrapper(_imageToPatchGrid.size, undefined, Int32Array, true); +} - function initCanvas() { - if (_config.useWorker || typeof document === 'undefined') { - return; - } - _canvasContainer.dom.binary = document.createElement("canvas"); - _canvasContainer.dom.binary.className = "binaryBuffer"; - if (_config.showCanvas === true) { - document.querySelector("#debug").appendChild(_canvasContainer.dom.binary); +function initCanvas() { + if (_config.useWorker || typeof document === 'undefined') { + return; + } + _canvasContainer.dom.binary = document.createElement("canvas"); + _canvasContainer.dom.binary.className = "binaryBuffer"; + if (_config.showCanvas === true) { + document.querySelector("#debug").appendChild(_canvasContainer.dom.binary); + } + _canvasContainer.ctx.binary = _canvasContainer.dom.binary.getContext("2d"); + _canvasContainer.dom.binary.width = _binaryImageWrapper.size.x; + _canvasContainer.dom.binary.height = _binaryImageWrapper.size.y; +} + +/** + * Creates a bounding box which encloses all the given patches + * @returns {Array} The minimal bounding box + */ +function boxFromPatches(patches) { + var overAvg, i, j, patch, transMat, minx = _binaryImageWrapper.size.x, miny = _binaryImageWrapper.size.y, maxx = -_binaryImageWrapper.size.x, maxy = -_binaryImageWrapper.size.y, box, scale; + + // draw all patches which are to be taken into consideration + overAvg = 0; + for ( i = 0; i < patches.length; i++) { + patch = patches[i]; + overAvg += patch.rad; + if (_config.showPatches) { + ImageDebug.drawRect(patch.pos, _subImageWrapper.size, _canvasContainer.ctx.binary, {color: "red"}); } - _canvasContainer.ctx.binary = _canvasContainer.dom.binary.getContext("2d"); - _canvasContainer.dom.binary.width = _binaryImageWrapper.size.x; - _canvasContainer.dom.binary.height = _binaryImageWrapper.size.y; } - /** - * Creates a bounding box which encloses all the given patches - * @returns {Array} The minimal bounding box - */ - function boxFromPatches(patches) { - var overAvg, i, j, patch, transMat, minx = _binaryImageWrapper.size.x, miny = _binaryImageWrapper.size.y, maxx = -_binaryImageWrapper.size.x, maxy = -_binaryImageWrapper.size.y, box, scale; - - // draw all patches which are to be taken into consideration - overAvg = 0; - for ( i = 0; i < patches.length; i++) { - patch = patches[i]; - overAvg += patch.rad; - if (_config.showPatches) { - ImageDebug.drawRect(patch.pos, _subImageWrapper.size, _canvasContainer.ctx.binary, {color: "red"}); - } - } + overAvg /= patches.length; + overAvg = (overAvg * 180 / Math.PI + 90) % 180 - 90; + if (overAvg < 0) { + overAvg += 180; + } + + overAvg = (180 - overAvg) * Math.PI / 180; + transMat = mat2.clone([Math.cos(overAvg), Math.sin(overAvg), -Math.sin(overAvg), Math.cos(overAvg)]); - overAvg /= patches.length; - overAvg = (overAvg * 180 / Math.PI + 90) % 180 - 90; - if (overAvg < 0) { - overAvg += 180; + // iterate over patches and rotate by angle + for ( i = 0; i < patches.length; i++) { + patch = patches[i]; + for ( j = 0; j < 4; j++) { + vec2.transformMat2(patch.box[j], patch.box[j], transMat); } - overAvg = (180 - overAvg) * Math.PI / 180; - transMat = mat2.clone([Math.cos(overAvg), Math.sin(overAvg), -Math.sin(overAvg), Math.cos(overAvg)]); + if (_config.boxFromPatches.showTransformed) { + ImageDebug.drawPath(patch.box, {x: 0, y: 1}, _canvasContainer.ctx.binary, {color: '#99ff00', lineWidth: 2}); + } + } - // iterate over patches and rotate by angle - for ( i = 0; i < patches.length; i++) { - patch = patches[i]; - for ( j = 0; j < 4; j++) { - vec2.transformMat2(patch.box[j], patch.box[j], transMat); + // find bounding box + for ( i = 0; i < patches.length; i++) { + patch = patches[i]; + for ( j = 0; j < 4; j++) { + if (patch.box[j][0] < minx) { + minx = patch.box[j][0]; } - - if (_config.boxFromPatches.showTransformed) { - ImageDebug.drawPath(patch.box, {x: 0, y: 1}, _canvasContainer.ctx.binary, {color: '#99ff00', lineWidth: 2}); + if (patch.box[j][0] > maxx) { + maxx = patch.box[j][0]; } - } - - // find bounding box - for ( i = 0; i < patches.length; i++) { - patch = patches[i]; - for ( j = 0; j < 4; j++) { - if (patch.box[j][0] < minx) { - minx = patch.box[j][0]; - } - if (patch.box[j][0] > maxx) { - maxx = patch.box[j][0]; - } - if (patch.box[j][1] < miny) { - miny = patch.box[j][1]; - } - if (patch.box[j][1] > maxy) { - maxy = patch.box[j][1]; - } + if (patch.box[j][1] < miny) { + miny = patch.box[j][1]; + } + if (patch.box[j][1] > maxy) { + maxy = patch.box[j][1]; } } + } - box = [[minx, miny], [maxx, miny], [maxx, maxy], [minx, maxy]]; + box = [[minx, miny], [maxx, miny], [maxx, maxy], [minx, maxy]]; - if (_config.boxFromPatches.showTransformedBox) { - ImageDebug.drawPath(box, {x: 0, y: 1}, _canvasContainer.ctx.binary, {color: '#ff0000', lineWidth: 2}); - } + if (_config.boxFromPatches.showTransformedBox) { + ImageDebug.drawPath(box, {x: 0, y: 1}, _canvasContainer.ctx.binary, {color: '#ff0000', lineWidth: 2}); + } - scale = _config.halfSample ? 2 : 1; - // reverse rotation; - transMat = mat2.invert(transMat, transMat); - for ( j = 0; j < 4; j++) { - vec2.transformMat2(box[j], box[j], transMat); - } + scale = _config.halfSample ? 2 : 1; + // reverse rotation; + transMat = mat2.invert(transMat, transMat); + for ( j = 0; j < 4; j++) { + vec2.transformMat2(box[j], box[j], transMat); + } - if (_config.boxFromPatches.showBB) { - ImageDebug.drawPath(box, {x: 0, y: 1}, _canvasContainer.ctx.binary, {color: '#ff0000', lineWidth: 2}); - } - - for ( j = 0; j < 4; j++) { - vec2.scale(box[j], box[j], scale); - } + if (_config.boxFromPatches.showBB) { + ImageDebug.drawPath(box, {x: 0, y: 1}, _canvasContainer.ctx.binary, {color: '#ff0000', lineWidth: 2}); + } - return box; + for ( j = 0; j < 4; j++) { + vec2.scale(box[j], box[j], scale); } - /** - * Creates a binary image of the current image - */ - function binarizeImage() { - CVUtils.otsuThreshold(_currentImageWrapper, _binaryImageWrapper); - _binaryImageWrapper.zeroBorder(); - if (_config.showCanvas) { - _binaryImageWrapper.show(_canvasContainer.dom.binary, 255); - } + return box; +} + +/** + * Creates a binary image of the current image + */ +function binarizeImage() { + CVUtils.otsuThreshold(_currentImageWrapper, _binaryImageWrapper); + _binaryImageWrapper.zeroBorder(); + if (_config.showCanvas) { + _binaryImageWrapper.show(_canvasContainer.dom.binary, 255); } - - /** - * Iterate over the entire image - * extract patches - */ - function findPatches() { - var i, - j, - x, - y, - moments, - patchesFound = [], - rasterizer, - rasterResult, - patch; - for ( i = 0; i < _numPatches.x; i++) { - for ( j = 0; j < _numPatches.y; j++) { - - x = _subImageWrapper.size.x * i; - y = _subImageWrapper.size.y * j; - - // seperate parts - skeletonize(x, y); - - // Rasterize, find individual bars - _skelImageWrapper.zeroBorder(); - ArrayHelper.init(_labelImageWrapper.data, 0); - rasterizer = Rasterizer.create(_skelImageWrapper, _labelImageWrapper); - rasterResult = rasterizer.rasterize(0); - - if (_config.showLabels) { - _labelImageWrapper.overlay(_canvasContainer.dom.binary, Math.floor(360 / rasterResult.count), {x : x, y : y}); - } +} + +/** + * Iterate over the entire image + * extract patches + */ +function findPatches() { + var i, + j, + x, + y, + moments, + patchesFound = [], + rasterizer, + rasterResult, + patch; + for ( i = 0; i < _numPatches.x; i++) { + for ( j = 0; j < _numPatches.y; j++) { + + x = _subImageWrapper.size.x * i; + y = _subImageWrapper.size.y * j; + + // seperate parts + skeletonize(x, y); + + // Rasterize, find individual bars + _skelImageWrapper.zeroBorder(); + ArrayHelper.init(_labelImageWrapper.data, 0); + rasterizer = Rasterizer.create(_skelImageWrapper, _labelImageWrapper); + rasterResult = rasterizer.rasterize(0); + + if (_config.showLabels) { + _labelImageWrapper.overlay(_canvasContainer.dom.binary, Math.floor(360 / rasterResult.count), {x : x, y : y}); + } - // calculate moments from the skeletonized patch - moments = _labelImageWrapper.moments(rasterResult.count); + // calculate moments from the skeletonized patch + moments = _labelImageWrapper.moments(rasterResult.count); - // extract eligible patches - patchesFound = patchesFound.concat(describePatch(moments, [i, j], x, y)); - } + // extract eligible patches + patchesFound = patchesFound.concat(describePatch(moments, [i, j], x, y)); } - - if (_config.showFoundPatches) { - for ( i = 0; i < patchesFound.length; i++) { - patch = patchesFound[i]; - ImageDebug.drawRect(patch.pos, _subImageWrapper.size, _canvasContainer.ctx.binary, {color: "#99ff00", lineWidth: 2}); - } + } + + if (_config.showFoundPatches) { + for ( i = 0; i < patchesFound.length; i++) { + patch = patchesFound[i]; + ImageDebug.drawRect(patch.pos, _subImageWrapper.size, _canvasContainer.ctx.binary, {color: "#99ff00", lineWidth: 2}); } - - return patchesFound; } - - /** - * Finds those connected areas which contain at least 6 patches - * and returns them ordered DESC by the number of contained patches - * @param {Number} maxLabel - */ - function findBiggestConnectedAreas(maxLabel){ - var i, - sum, - labelHist = [], - topLabels = []; - - for ( i = 0; i < maxLabel; i++) { - labelHist.push(0); + + return patchesFound; +} + +/** + * Finds those connected areas which contain at least 6 patches + * and returns them ordered DESC by the number of contained patches + * @param {Number} maxLabel + */ +function findBiggestConnectedAreas(maxLabel){ + var i, + sum, + labelHist = [], + topLabels = []; + + for ( i = 0; i < maxLabel; i++) { + labelHist.push(0); + } + sum = _patchLabelGrid.data.length; + while (sum--) { + if (_patchLabelGrid.data[sum] > 0) { + labelHist[_patchLabelGrid.data[sum] - 1]++; } + } + + labelHist = labelHist.map(function(val, idx) { + return { + val : val, + label : idx + 1 + }; + }); + + labelHist.sort(function(a, b) { + return b.val - a.val; + }); + + // extract top areas with at least 6 patches present + topLabels = labelHist.filter(function(el) { + return el.val >= 5; + }); + + return topLabels; +} + +/** + * + */ +function findBoxes(topLabels, maxLabel) { + var i, + j, + sum, + patches = [], + patch, + box, + boxes = [], + hsv = [0, 1, 1], + rgb = [0, 0, 0]; + + for ( i = 0; i < topLabels.length; i++) { sum = _patchLabelGrid.data.length; + patches.length = 0; while (sum--) { - if (_patchLabelGrid.data[sum] > 0) { - labelHist[_patchLabelGrid.data[sum] - 1]++; + if (_patchLabelGrid.data[sum] === topLabels[i].label) { + patch = _imageToPatchGrid.data[sum]; + patches.push(patch); } } - - labelHist = labelHist.map(function(val, idx) { - return { - val : val, - label : idx + 1 - }; - }); - - labelHist.sort(function(a, b) { - return b.val - a.val; - }); - - // extract top areas with at least 6 patches present - topLabels = labelHist.filter(function(el) { - return el.val >= 5; - }); - - return topLabels; - } - - /** - * - */ - function findBoxes(topLabels, maxLabel) { - var i, - j, - sum, - patches = [], - patch, - box, - boxes = [], - hsv = [0, 1, 1], - rgb = [0, 0, 0]; - - for ( i = 0; i < topLabels.length; i++) { - sum = _patchLabelGrid.data.length; - patches.length = 0; - while (sum--) { - if (_patchLabelGrid.data[sum] === topLabels[i].label) { - patch = _imageToPatchGrid.data[sum]; - patches.push(patch); - } - } - box = boxFromPatches(patches); - if (box) { - boxes.push(box); - - // draw patch-labels if requested - if (_config.showRemainingPatchLabels) { - for ( j = 0; j < patches.length; j++) { - patch = patches[j]; - hsv[0] = (topLabels[i].label / (maxLabel + 1)) * 360; - CVUtils.hsv2rgb(hsv, rgb); - ImageDebug.drawRect(patch.pos, _subImageWrapper.size, _canvasContainer.ctx.binary, {color: "rgb(" + rgb.join(",") + ")", lineWidth: 2}); - } + box = boxFromPatches(patches); + if (box) { + boxes.push(box); + + // draw patch-labels if requested + if (_config.showRemainingPatchLabels) { + for ( j = 0; j < patches.length; j++) { + patch = patches[j]; + hsv[0] = (topLabels[i].label / (maxLabel + 1)) * 360; + CVUtils.hsv2rgb(hsv, rgb); + ImageDebug.drawRect(patch.pos, _subImageWrapper.size, _canvasContainer.ctx.binary, {color: "rgb(" + rgb.join(",") + ")", lineWidth: 2}); } } } - return boxes; } - - /** - * Find similar moments (via cluster) - * @param {Object} moments - */ - function similarMoments(moments) { - var clusters = CVUtils.cluster(moments, 0.90); - var topCluster = CVUtils.topGeneric(clusters, 1, function(e) { - return e.getPoints().length; - }); - var points = [], result = []; - if (topCluster.length === 1) { - points = topCluster[0].item.getPoints(); - for (var i = 0; i < points.length; i++) { - result.push(points[i].point); - } + return boxes; +} + +/** + * Find similar moments (via cluster) + * @param {Object} moments + */ +function similarMoments(moments) { + var clusters = CVUtils.cluster(moments, 0.90); + var topCluster = CVUtils.topGeneric(clusters, 1, function(e) { + return e.getPoints().length; + }); + var points = [], result = []; + if (topCluster.length === 1) { + points = topCluster[0].item.getPoints(); + for (var i = 0; i < points.length; i++) { + result.push(points[i].point); } - return result; } + return result; +} - function skeletonize(x, y) { - _binaryImageWrapper.subImageAsCopy(_subImageWrapper, CVUtils.imageRef(x, y)); - _skeletonizer.skeletonize(); - - // Show skeleton if requested - if (_config.showSkeleton) { - _skelImageWrapper.overlay(_canvasContainer.dom.binary, 360, CVUtils.imageRef(x, y)); - } - } +function skeletonize(x, y) { + _binaryImageWrapper.subImageAsCopy(_subImageWrapper, CVUtils.imageRef(x, y)); + _skeletonizer.skeletonize(); - /** - * Extracts and describes those patches which seem to contain a barcode pattern - * @param {Array} moments - * @param {Object} patchPos, - * @param {Number} x - * @param {Number} y - * @returns {Array} list of patches - */ - function describePatch(moments, patchPos, x, y) { - var k, - avg, - sum = 0, - eligibleMoments = [], - matchingMoments, - patch, - patchesFound = [], - minComponentWeight = Math.ceil(_patchSize.x/3); - - if (moments.length >= 2) { - // only collect moments which's area covers at least minComponentWeight pixels. - for ( k = 0; k < moments.length; k++) { - if (moments[k].m00 > minComponentWeight) { - eligibleMoments.push(moments[k]); - } + // Show skeleton if requested + if (_config.showSkeleton) { + _skelImageWrapper.overlay(_canvasContainer.dom.binary, 360, CVUtils.imageRef(x, y)); + } +} + +/** + * Extracts and describes those patches which seem to contain a barcode pattern + * @param {Array} moments + * @param {Object} patchPos, + * @param {Number} x + * @param {Number} y + * @returns {Array} list of patches + */ +function describePatch(moments, patchPos, x, y) { + var k, + avg, + sum = 0, + eligibleMoments = [], + matchingMoments, + patch, + patchesFound = [], + minComponentWeight = Math.ceil(_patchSize.x/3); + + if (moments.length >= 2) { + // only collect moments which's area covers at least minComponentWeight pixels. + for ( k = 0; k < moments.length; k++) { + if (moments[k].m00 > minComponentWeight) { + eligibleMoments.push(moments[k]); } + } - // if at least 2 moments are found which have at least minComponentWeights covered - if (eligibleMoments.length >= 2) { - sum = eligibleMoments.length; - matchingMoments = similarMoments(eligibleMoments); - avg = 0; - // determine the similarity of the moments - for ( k = 0; k < matchingMoments.length; k++) { - avg += matchingMoments[k].rad; - } + // if at least 2 moments are found which have at least minComponentWeights covered + if (eligibleMoments.length >= 2) { + sum = eligibleMoments.length; + matchingMoments = similarMoments(eligibleMoments); + avg = 0; + // determine the similarity of the moments + for ( k = 0; k < matchingMoments.length; k++) { + avg += matchingMoments[k].rad; + } - // Only two of the moments are allowed not to fit into the equation - // add the patch to the set - if (matchingMoments.length > 1 && matchingMoments.length >= (eligibleMoments.length / 4) * 3 && matchingMoments.length > moments.length / 4) { - avg /= matchingMoments.length; - patch = { - index : patchPos[1] * _numPatches.x + patchPos[0], - pos : { - x : x, - y : y - }, - box : [vec2.clone([x, y]), vec2.clone([x + _subImageWrapper.size.x, y]), vec2.clone([x + _subImageWrapper.size.x, y + _subImageWrapper.size.y]), vec2.clone([x, y + _subImageWrapper.size.y])], - moments : matchingMoments, - rad : avg, - vec : vec2.clone([Math.cos(avg), Math.sin(avg)]) - }; - patchesFound.push(patch); - } + // Only two of the moments are allowed not to fit into the equation + // add the patch to the set + if (matchingMoments.length > 1 && matchingMoments.length >= (eligibleMoments.length / 4) * 3 && matchingMoments.length > moments.length / 4) { + avg /= matchingMoments.length; + patch = { + index : patchPos[1] * _numPatches.x + patchPos[0], + pos : { + x : x, + y : y + }, + box : [vec2.clone([x, y]), vec2.clone([x + _subImageWrapper.size.x, y]), vec2.clone([x + _subImageWrapper.size.x, y + _subImageWrapper.size.y]), vec2.clone([x, y + _subImageWrapper.size.y])], + moments : matchingMoments, + rad : avg, + vec : vec2.clone([Math.cos(avg), Math.sin(avg)]) + }; + patchesFound.push(patch); } } - return patchesFound; } - - /** - * finds patches which are connected and share the same orientation - * @param {Object} patchesFound - */ - function rasterizeAngularSimilarity(patchesFound) { - var label = 0, - threshold = 0.95, - currIdx = 0, - j, - patch, - hsv = [0, 1, 1], - rgb = [0, 0, 0]; - - function notYetProcessed() { - var i; - for ( i = 0; i < _patchLabelGrid.data.length; i++) { - if (_patchLabelGrid.data[i] === 0 && _patchGrid.data[i] === 1) { - return i; - } + return patchesFound; +} + +/** + * finds patches which are connected and share the same orientation + * @param {Object} patchesFound + */ +function rasterizeAngularSimilarity(patchesFound) { + var label = 0, + threshold = 0.95, + currIdx = 0, + j, + patch, + hsv = [0, 1, 1], + rgb = [0, 0, 0]; + + function notYetProcessed() { + var i; + for ( i = 0; i < _patchLabelGrid.data.length; i++) { + if (_patchLabelGrid.data[i] === 0 && _patchGrid.data[i] === 1) { + return i; } - return _patchLabelGrid.length; } + return _patchLabelGrid.length; + } - function trace(currentIdx) { - var x, y, currentPatch, patch, idx, dir, current = { - x : currentIdx % _patchLabelGrid.size.x, - y : (currentIdx / _patchLabelGrid.size.x) | 0 - }, similarity; - - if (currentIdx < _patchLabelGrid.data.length) { - currentPatch = _imageToPatchGrid.data[currentIdx]; - // assign label - _patchLabelGrid.data[currentIdx] = label; - for ( dir = 0; dir < Tracer.searchDirections.length; dir++) { - y = current.y + Tracer.searchDirections[dir][0]; - x = current.x + Tracer.searchDirections[dir][1]; - idx = y * _patchLabelGrid.size.x + x; - - // continue if patch empty - if (_patchGrid.data[idx] === 0) { - _patchLabelGrid.data[idx] = Number.MAX_VALUE; - continue; - } + function trace(currentIdx) { + var x, y, currentPatch, patch, idx, dir, current = { + x : currentIdx % _patchLabelGrid.size.x, + y : (currentIdx / _patchLabelGrid.size.x) | 0 + }, similarity; + + if (currentIdx < _patchLabelGrid.data.length) { + currentPatch = _imageToPatchGrid.data[currentIdx]; + // assign label + _patchLabelGrid.data[currentIdx] = label; + for ( dir = 0; dir < Tracer.searchDirections.length; dir++) { + y = current.y + Tracer.searchDirections[dir][0]; + x = current.x + Tracer.searchDirections[dir][1]; + idx = y * _patchLabelGrid.size.x + x; + + // continue if patch empty + if (_patchGrid.data[idx] === 0) { + _patchLabelGrid.data[idx] = Number.MAX_VALUE; + continue; + } - patch = _imageToPatchGrid.data[idx]; - if (_patchLabelGrid.data[idx] === 0) { - similarity = Math.abs(vec2.dot(patch.vec, currentPatch.vec)); - if (similarity > threshold) { - trace(idx); - } + patch = _imageToPatchGrid.data[idx]; + if (_patchLabelGrid.data[idx] === 0) { + similarity = Math.abs(vec2.dot(patch.vec, currentPatch.vec)); + if (similarity > threshold) { + trace(idx); } } } } - - // prepare for finding the right patches - ArrayHelper.init(_patchGrid.data, 0); - ArrayHelper.init(_patchLabelGrid.data, 0); - ArrayHelper.init(_imageToPatchGrid.data, null); - - for ( j = 0; j < patchesFound.length; j++) { - patch = patchesFound[j]; - _imageToPatchGrid.data[patch.index] = patch; - _patchGrid.data[patch.index] = 1; - } + } - // rasterize the patches found to determine area - _patchGrid.zeroBorder(); + // prepare for finding the right patches + ArrayHelper.init(_patchGrid.data, 0); + ArrayHelper.init(_patchLabelGrid.data, 0); + ArrayHelper.init(_imageToPatchGrid.data, null); - while (( currIdx = notYetProcessed()) < _patchLabelGrid.data.length) { - label++; - trace(currIdx); - } - - // draw patch-labels if requested - if (_config.showPatchLabels) { - for ( j = 0; j < _patchLabelGrid.data.length; j++) { - if (_patchLabelGrid.data[j] > 0 && _patchLabelGrid.data[j] <= label) { - patch = _imageToPatchGrid.data[j]; - hsv[0] = (_patchLabelGrid.data[j] / (label + 1)) * 360; - CVUtils.hsv2rgb(hsv, rgb); - ImageDebug.drawRect(patch.pos, _subImageWrapper.size, _canvasContainer.ctx.binary, {color: "rgb(" + rgb.join(",") + ")", lineWidth: 2}); - } + for ( j = 0; j < patchesFound.length; j++) { + patch = patchesFound[j]; + _imageToPatchGrid.data[patch.index] = patch; + _patchGrid.data[patch.index] = 1; + } + + // rasterize the patches found to determine area + _patchGrid.zeroBorder(); + + while (( currIdx = notYetProcessed()) < _patchLabelGrid.data.length) { + label++; + trace(currIdx); + } + + // draw patch-labels if requested + if (_config.showPatchLabels) { + for ( j = 0; j < _patchLabelGrid.data.length; j++) { + if (_patchLabelGrid.data[j] > 0 && _patchLabelGrid.data[j] <= label) { + patch = _imageToPatchGrid.data[j]; + hsv[0] = (_patchLabelGrid.data[j] / (label + 1)) * 360; + CVUtils.hsv2rgb(hsv, rgb); + ImageDebug.drawRect(patch.pos, _subImageWrapper.size, _canvasContainer.ctx.binary, {color: "rgb(" + rgb.join(",") + ")", lineWidth: 2}); } } - - return label; } - return { - init : function(inputImageWrapper, config) { - _config = config; - _inputImageWrapper = inputImageWrapper; - - initBuffers(); - initCanvas(); - }, + return label; +} - locate : function() { - var patchesFound, - topLabels, - boxes; +export default { + init : function(inputImageWrapper, config) { + _config = config; + _inputImageWrapper = inputImageWrapper; - if (_config.halfSample) { - CVUtils.halfSample(_inputImageWrapper, _currentImageWrapper); - } + initBuffers(); + initCanvas(); + }, - binarizeImage(); - patchesFound = findPatches(); - // return unless 5% or more patches are found - if (patchesFound.length < _numPatches.x * _numPatches.y * 0.05) { - return null; - } + locate : function() { + var patchesFound, + topLabels, + boxes; - // rasterrize area by comparing angular similarity; - var maxLabel = rasterizeAngularSimilarity(patchesFound); - if (maxLabel < 1) { - return null; - } + if (_config.halfSample) { + CVUtils.halfSample(_inputImageWrapper, _currentImageWrapper); + } - // search for area with the most patches (biggest connected area) - topLabels = findBiggestConnectedAreas(maxLabel); - if (topLabels.length === 0) { - return null; - } + binarizeImage(); + patchesFound = findPatches(); + // return unless 5% or more patches are found + if (patchesFound.length < _numPatches.x * _numPatches.y * 0.05) { + return null; + } - boxes = findBoxes(topLabels, maxLabel); - return boxes; - }, + // rasterrize area by comparing angular similarity; + var maxLabel = rasterizeAngularSimilarity(patchesFound); + if (maxLabel < 1) { + return null; + } - checkImageConstraints: function(inputStream, config) { - var patchSize, - width = inputStream.getWidth(), - height = inputStream.getHeight(), - halfSample = config.halfSample ? 0.5 : 1, - size, - area; - - // calculate width and height based on area - if (inputStream.getConfig().area) { - area = CVUtils.computeImageArea(width, height, inputStream.getConfig().area); - inputStream.setTopRight({x: area.sx, y: area.sy}); - inputStream.setCanvasSize({x: width, y: height}); - width = area.sw; - height = area.sh; - } + // search for area with the most patches (biggest connected area) + topLabels = findBiggestConnectedAreas(maxLabel); + if (topLabels.length === 0) { + return null; + } - size = { - x: Math.floor(width * halfSample), - y: Math.floor(height * halfSample) - }; + boxes = findBoxes(topLabels, maxLabel); + return boxes; + }, + + checkImageConstraints: function(inputStream, config) { + var patchSize, + width = inputStream.getWidth(), + height = inputStream.getHeight(), + halfSample = config.halfSample ? 0.5 : 1, + size, + area; + + // calculate width and height based on area + if (inputStream.getConfig().area) { + area = CVUtils.computeImageArea(width, height, inputStream.getConfig().area); + inputStream.setTopRight({x: area.sx, y: area.sy}); + inputStream.setCanvasSize({x: width, y: height}); + width = area.sw; + height = area.sh; + } - patchSize = CVUtils.calculatePatchSize(config.patchSize, size); - console.log("Patch-Size: " + JSON.stringify(patchSize)); + size = { + x: Math.floor(width * halfSample), + y: Math.floor(height * halfSample) + }; - inputStream.setWidth(Math.floor(Math.floor(size.x/patchSize.x)*(1/halfSample)*patchSize.x)); - inputStream.setHeight(Math.floor(Math.floor(size.y/patchSize.y)*(1/halfSample)*patchSize.y)); + patchSize = CVUtils.calculatePatchSize(config.patchSize, size); + console.log("Patch-Size: " + JSON.stringify(patchSize)); - if ((inputStream.getWidth() % patchSize.x) === 0 && (inputStream.getHeight() % patchSize.y) === 0) { - return true; - } + inputStream.setWidth(Math.floor(Math.floor(size.x/patchSize.x)*(1/halfSample)*patchSize.x)); + inputStream.setHeight(Math.floor(Math.floor(size.y/patchSize.y)*(1/halfSample)*patchSize.y)); - throw new Error("Image dimensions do not comply with the current settings: Width (" + - width + " )and height (" + height + - ") must a multiple of " + patchSize.x); + if ((inputStream.getWidth() % patchSize.x) === 0 && (inputStream.getHeight() % patchSize.y) === 0) { + return true; } - }; -}); + throw new Error("Image dimensions do not comply with the current settings: Width (" + + width + " )and height (" + height + + ") must a multiple of " + patchSize.x); + } +}; diff --git a/src/barcode_reader.js b/src/barcode_reader.js index ec2f5f87..bea1ed6a 100644 --- a/src/barcode_reader.js +++ b/src/barcode_reader.js @@ -1,231 +1,222 @@ -/* jshint undef: true, unused: true, browser:true, devel: true */ -/* global define */ - -define( - function() { - "use strict"; - - function BarcodeReader(config) { - this._row = []; - this.config = config || {}; - return this; +function BarcodeReader(config) { + this._row = []; + this.config = config || {}; + return this; +} + +BarcodeReader.prototype._nextUnset = function(line, start) { + var i; + + if (start === undefined) { + start = 0; + } + for (i = start; i < line.length; i++) { + if (!line[i]) { + return i; } - - BarcodeReader.prototype._nextUnset = function(line, start) { - var i; - - if (start === undefined) { - start = 0; - } - for (i = start; i < line.length; i++) { - if (!line[i]) { - return i; - } - } - return line.length; - }; - - BarcodeReader.prototype._matchPattern = function(counter, code) { - var i, - error = 0, - singleError = 0, - modulo = this.MODULO, - maxSingleError = this.SINGLE_CODE_ERROR || 1; - - for (i = 0; i < counter.length; i++) { - singleError = Math.abs(code[i] - counter[i]); - if (singleError > maxSingleError) { - return Number.MAX_VALUE; - } - error += singleError; - } - return error/modulo; - }; + } + return line.length; +}; - BarcodeReader.prototype._nextSet = function(line, offset) { - var i; +BarcodeReader.prototype._matchPattern = function(counter, code) { + var i, + error = 0, + singleError = 0, + modulo = this.MODULO, + maxSingleError = this.SINGLE_CODE_ERROR || 1; - offset = offset || 0; - for (i = offset; i < line.length; i++) { - if (line[i]) { - return i; - } - } - return line.length; - }; - - BarcodeReader.prototype._normalize = function(counter, modulo) { - var i, - self = this, - sum = 0, - ratio, - numOnes = 0, - normalized = [], - norm = 0; - - if (!modulo) { - modulo = self.MODULO; - } - for (i = 0; i < counter.length; i++) { - if (counter[i] === 1) { - numOnes++; - } else { - sum += counter[i]; - } - } - ratio = sum / (modulo - numOnes); - if (ratio > 1.0) { - for (i = 0; i < counter.length; i++) { - norm = counter[i] === 1 ? counter[i] : counter[i] / ratio; - normalized.push(norm); - } + for (i = 0; i < counter.length; i++) { + singleError = Math.abs(code[i] - counter[i]); + if (singleError > maxSingleError) { + return Number.MAX_VALUE; + } + error += singleError; + } + return error/modulo; +}; + +BarcodeReader.prototype._nextSet = function(line, offset) { + var i; + + offset = offset || 0; + for (i = offset; i < line.length; i++) { + if (line[i]) { + return i; + } + } + return line.length; +}; + +BarcodeReader.prototype._normalize = function(counter, modulo) { + var i, + self = this, + sum = 0, + ratio, + numOnes = 0, + normalized = [], + norm = 0; + + if (!modulo) { + modulo = self.MODULO; + } + for (i = 0; i < counter.length; i++) { + if (counter[i] === 1) { + numOnes++; + } else { + sum += counter[i]; + } + } + ratio = sum / (modulo - numOnes); + if (ratio > 1.0) { + for (i = 0; i < counter.length; i++) { + norm = counter[i] === 1 ? counter[i] : counter[i] / ratio; + normalized.push(norm); + } + } else { + ratio = (sum + numOnes)/modulo; + for (i = 0; i < counter.length; i++) { + norm = counter[i] / ratio; + normalized.push(norm); + } + } + return normalized; +}; + +BarcodeReader.prototype._matchTrace = function(cmpCounter, epsilon) { + var counter = [], + i, + self = this, + offset = self._nextSet(self._row), + isWhite = !self._row[offset], + counterPos = 0, + bestMatch = { + error : Number.MAX_VALUE, + code : -1, + start : 0 + }, + error; + + if (cmpCounter) { + for ( i = 0; i < cmpCounter.length; i++) { + counter.push(0); + } + for ( i = offset; i < self._row.length; i++) { + if (self._row[i] ^ isWhite) { + counter[counterPos]++; } else { - ratio = (sum + numOnes)/modulo; - for (i = 0; i < counter.length; i++) { - norm = counter[i] / ratio; - normalized.push(norm); - } - } - return normalized; - }; - - BarcodeReader.prototype._matchTrace = function(cmpCounter, epsilon) { - var counter = [], - i, - self = this, - offset = self._nextSet(self._row), - isWhite = !self._row[offset], - counterPos = 0, - bestMatch = { - error : Number.MAX_VALUE, - code : -1, - start : 0 - }, - error; - - if (cmpCounter) { - for ( i = 0; i < cmpCounter.length; i++) { - counter.push(0); - } - for ( i = offset; i < self._row.length; i++) { - if (self._row[i] ^ isWhite) { - counter[counterPos]++; + if (counterPos === counter.length - 1) { + error = self._matchPattern(counter, cmpCounter); + + if (error < epsilon) { + bestMatch.start = i - offset; + bestMatch.end = i; + bestMatch.counter = counter; + return bestMatch; } else { - if (counterPos === counter.length - 1) { - error = self._matchPattern(counter, cmpCounter); - - if (error < epsilon) { - bestMatch.start = i - offset; - bestMatch.end = i; - bestMatch.counter = counter; - return bestMatch; - } else { - return null; - } - } else { - counterPos++; - } - counter[counterPos] = 1; - isWhite = !isWhite; + return null; } + } else { + counterPos++; } + counter[counterPos] = 1; + isWhite = !isWhite; + } + } + } else { + counter.push(0); + for ( i = offset; i < self._row.length; i++) { + if (self._row[i] ^ isWhite) { + counter[counterPos]++; } else { + counterPos++; counter.push(0); - for ( i = offset; i < self._row.length; i++) { - if (self._row[i] ^ isWhite) { - counter[counterPos]++; - } else { - counterPos++; - counter.push(0); - counter[counterPos] = 1; - isWhite = !isWhite; - } - } + counter[counterPos] = 1; + isWhite = !isWhite; } + } + } - // if cmpCounter was not given - bestMatch.start = offset; - bestMatch.end = self._row.length - 1; - bestMatch.counter = counter; - return bestMatch; - }; - - BarcodeReader.prototype.decodePattern = function(pattern) { - var self = this, - result; - - self._row = pattern; - result = self._decode(); - if (result === null) { - self._row.reverse(); - result = self._decode(); - if (result) { - result.direction = BarcodeReader.DIRECTION.REVERSE; - result.start = self._row.length - result.start; - result.end = self._row.length - result.end; - } - } else { - result.direction = BarcodeReader.DIRECTION.FORWARD; - } - if (result) { - result.format = self.FORMAT; - } - return result; - }; + // if cmpCounter was not given + bestMatch.start = offset; + bestMatch.end = self._row.length - 1; + bestMatch.counter = counter; + return bestMatch; +}; - BarcodeReader.prototype._matchRange = function(start, end, value) { - var i; +BarcodeReader.prototype.decodePattern = function(pattern) { + var self = this, + result; - start = start < 0 ? 0 : start; - for (i = start; i < end; i++) { - if (this._row[i] !== value) { - return false; - } - } - return true; - }; - - BarcodeReader.prototype._fillCounters = function(offset, end, isWhite) { - var self = this, - counterPos = 0, - i, - counters = []; - - isWhite = (typeof isWhite !== 'undefined') ? isWhite : true; - offset = (typeof offset !== 'undefined') ? offset : self._nextUnset(self._row); - end = end || self._row.length; - - counters[counterPos] = 0; - for (i = offset; i < end; i++) { - if (self._row[i] ^ isWhite) { - counters[counterPos]++; - } else { - counterPos++; - counters[counterPos] = 1; - isWhite = !isWhite; - } - } - return counters; - }; - - Object.defineProperty(BarcodeReader.prototype, "FORMAT", { - value: 'unknown', - writeable: false - }); - - BarcodeReader.DIRECTION = { - FORWARD : 1, - REVERSE : -1 - }; - - BarcodeReader.Exception = { - StartNotFoundException : "Start-Info was not found!", - CodeNotFoundException : "Code could not be found!", - PatternNotFoundException : "Pattern could not be found!" - }; - - BarcodeReader.CONFIG_KEYS = {}; - - return (BarcodeReader); + self._row = pattern; + result = self._decode(); + if (result === null) { + self._row.reverse(); + result = self._decode(); + if (result) { + result.direction = BarcodeReader.DIRECTION.REVERSE; + result.start = self._row.length - result.start; + result.end = self._row.length - result.end; + } + } else { + result.direction = BarcodeReader.DIRECTION.FORWARD; + } + if (result) { + result.format = self.FORMAT; + } + return result; +}; + +BarcodeReader.prototype._matchRange = function(start, end, value) { + var i; + + start = start < 0 ? 0 : start; + for (i = start; i < end; i++) { + if (this._row[i] !== value) { + return false; + } + } + return true; +}; + +BarcodeReader.prototype._fillCounters = function(offset, end, isWhite) { + var self = this, + counterPos = 0, + i, + counters = []; + + isWhite = (typeof isWhite !== 'undefined') ? isWhite : true; + offset = (typeof offset !== 'undefined') ? offset : self._nextUnset(self._row); + end = end || self._row.length; + + counters[counterPos] = 0; + for (i = offset; i < end; i++) { + if (self._row[i] ^ isWhite) { + counters[counterPos]++; + } else { + counterPos++; + counters[counterPos] = 1; + isWhite = !isWhite; + } } -); + return counters; +}; + +Object.defineProperty(BarcodeReader.prototype, "FORMAT", { + value: 'unknown', + writeable: false +}); + +BarcodeReader.DIRECTION = { + FORWARD : 1, + REVERSE : -1 +}; + +BarcodeReader.Exception = { + StartNotFoundException : "Start-Info was not found!", + CodeNotFoundException : "Code could not be found!", + PatternNotFoundException : "Pattern could not be found!" +}; + +BarcodeReader.CONFIG_KEYS = {}; + +export default BarcodeReader; diff --git a/src/bresenham.js b/src/bresenham.js index a59c1636..db23973c 100644 --- a/src/bresenham.js +++ b/src/bresenham.js @@ -1,217 +1,214 @@ -/* jshint undef: true, unused: true, browser:true, devel: true */ -/* global define */ - -define(["cv_utils", "image_wrapper"], function(CVUtils, ImageWrapper) { - "use strict"; - var Bresenham = {}; - - var Slope = { - DIR : { - UP : 1, - DOWN : -1 - } - }; - /** - * Scans a line of the given image from point p1 to p2 and returns a result object containing - * gray-scale values (0-255) of the underlying pixels in addition to the min - * and max values. - * @param {Object} imageWrapper - * @param {Object} p1 The start point {x,y} - * @param {Object} p2 The end point {x,y} - * @returns {line, min, max} - */ - Bresenham.getBarcodeLine = function(imageWrapper, p1, p2) { - var x0 = p1.x | 0, - y0 = p1.y | 0, - x1 = p2.x | 0, - y1 = p2.y | 0, - steep = Math.abs(y1 - y0) > Math.abs(x1 - x0), - deltax, - deltay, - error, - ystep, - y, - tmp, - x, - line = [], - imageData = imageWrapper.data, - width = imageWrapper.size.x, - sum = 0, - val, - min = 255, - max = 0; - - function read(a, b) { - val = imageData[b * width + a]; - sum += val; - min = val < min ? val : min; - max = val > max ? val : max; - line.push(val); - } - - if (steep) { - tmp = x0; - x0 = y0; - y0 = tmp; - - tmp = x1; - x1 = y1; - y1 = tmp; - } - if (x0 > x1) { - tmp = x0; - x0 = x1; - x1 = tmp; - - tmp = y0; - y0 = y1; - y1 = tmp; +import CVUtils from './cv_utils'; +import ImageWrapper from './image_wrapper'; + +var Bresenham = {}; + +var Slope = { + DIR : { + UP : 1, + DOWN : -1 + } +}; +/** + * Scans a line of the given image from point p1 to p2 and returns a result object containing + * gray-scale values (0-255) of the underlying pixels in addition to the min + * and max values. + * @param {Object} imageWrapper + * @param {Object} p1 The start point {x,y} + * @param {Object} p2 The end point {x,y} + * @returns {line, min, max} + */ +Bresenham.getBarcodeLine = function(imageWrapper, p1, p2) { + var x0 = p1.x | 0, + y0 = p1.y | 0, + x1 = p2.x | 0, + y1 = p2.y | 0, + steep = Math.abs(y1 - y0) > Math.abs(x1 - x0), + deltax, + deltay, + error, + ystep, + y, + tmp, + x, + line = [], + imageData = imageWrapper.data, + width = imageWrapper.size.x, + sum = 0, + val, + min = 255, + max = 0; + + function read(a, b) { + val = imageData[b * width + a]; + sum += val; + min = val < min ? val : min; + max = val > max ? val : max; + line.push(val); + } + + if (steep) { + tmp = x0; + x0 = y0; + y0 = tmp; + + tmp = x1; + x1 = y1; + y1 = tmp; + } + if (x0 > x1) { + tmp = x0; + x0 = x1; + x1 = tmp; + + tmp = y0; + y0 = y1; + y1 = tmp; + } + deltax = x1 - x0; + deltay = Math.abs(y1 - y0); + error = (deltax / 2) | 0; + y = y0; + ystep = y0 < y1 ? 1 : -1; + for ( x = x0; x < x1; x++) { + if(steep){ + read(y, x); + } else { + read(x, y); } - deltax = x1 - x0; - deltay = Math.abs(y1 - y0); - error = (deltax / 2) | 0; - y = y0; - ystep = y0 < y1 ? 1 : -1; - for ( x = x0; x < x1; x++) { - if(steep){ - read(y, x); - } else { - read(x, y); - } - error = error - deltay; - if (error < 0) { - y = y + ystep; - error = error + deltax; - } + error = error - deltay; + if (error < 0) { + y = y + ystep; + error = error + deltax; } + } - return { - line : line, - min : min, - max : max - }; + return { + line : line, + min : min, + max : max }; +}; - Bresenham.toOtsuBinaryLine = function(result) { - var line = result.line, - image = new ImageWrapper({x: line.length - 1, y: 1}, line), - threshold = CVUtils.determineOtsuThreshold(image, 5); +Bresenham.toOtsuBinaryLine = function(result) { + var line = result.line, + image = new ImageWrapper({x: line.length - 1, y: 1}, line), + threshold = CVUtils.determineOtsuThreshold(image, 5); - line = CVUtils.sharpenLine(line); - CVUtils.thresholdImage(image, threshold); + line = CVUtils.sharpenLine(line); + CVUtils.thresholdImage(image, threshold); - return { - line: line, - threshold: threshold - }; + return { + line: line, + threshold: threshold }; - - /** - * Converts the result from getBarcodeLine into a binary representation - * also considering the frequency and slope of the signal for more robust results - * @param {Object} result {line, min, max} - */ - Bresenham.toBinaryLine = function(result) { - - var min = result.min, - max = result.max, - line = result.line, - slope, - slope2, - center = min + (max - min) / 2, - extrema = [], - currentDir, - dir, - threshold = (max - min) / 12, - rThreshold = -threshold, - i, - j; - - // 1. find extrema - currentDir = line[0] > center ? Slope.DIR.UP : Slope.DIR.DOWN; - extrema.push({ - pos : 0, - val : line[0] - }); - for ( i = 0; i < line.length - 2; i++) { - slope = (line[i + 1] - line[i]); - slope2 = (line[i + 2] - line[i + 1]); - if ((slope + slope2) < rThreshold && line[i + 1] < (center*1.5)) { - dir = Slope.DIR.DOWN; - } else if ((slope + slope2) > threshold && line[i + 1] > (center*0.5)) { - dir = Slope.DIR.UP; - } else { - dir = currentDir; - } - - if (currentDir !== dir) { - extrema.push({ - pos : i, - val : line[i] - }); - currentDir = dir; - } +}; + +/** + * Converts the result from getBarcodeLine into a binary representation + * also considering the frequency and slope of the signal for more robust results + * @param {Object} result {line, min, max} + */ +Bresenham.toBinaryLine = function(result) { + + var min = result.min, + max = result.max, + line = result.line, + slope, + slope2, + center = min + (max - min) / 2, + extrema = [], + currentDir, + dir, + threshold = (max - min) / 12, + rThreshold = -threshold, + i, + j; + + // 1. find extrema + currentDir = line[0] > center ? Slope.DIR.UP : Slope.DIR.DOWN; + extrema.push({ + pos : 0, + val : line[0] + }); + for ( i = 0; i < line.length - 2; i++) { + slope = (line[i + 1] - line[i]); + slope2 = (line[i + 2] - line[i + 1]); + if ((slope + slope2) < rThreshold && line[i + 1] < (center*1.5)) { + dir = Slope.DIR.DOWN; + } else if ((slope + slope2) > threshold && line[i + 1] > (center*0.5)) { + dir = Slope.DIR.UP; + } else { + dir = currentDir; } - extrema.push({ - pos : line.length, - val : line[line.length - 1] - }); - for ( j = extrema[0].pos; j < extrema[1].pos; j++) { - line[j] = line[j] > center ? 0 : 1; + if (currentDir !== dir) { + extrema.push({ + pos : i, + val : line[i] + }); + currentDir = dir; + } + } + extrema.push({ + pos : line.length, + val : line[line.length - 1] + }); + + for ( j = extrema[0].pos; j < extrema[1].pos; j++) { + line[j] = line[j] > center ? 0 : 1; + } + + // iterate over extrema and convert to binary based on avg between minmax + for ( i = 1; i < extrema.length - 1; i++) { + if (extrema[i + 1].val > extrema[i].val) { + threshold = (extrema[i].val + ((extrema[i + 1].val - extrema[i].val) / 3) * 2) | 0; + } else { + threshold = (extrema[i + 1].val + ((extrema[i].val - extrema[i + 1].val) / 3)) | 0; } - // iterate over extrema and convert to binary based on avg between minmax - for ( i = 1; i < extrema.length - 1; i++) { - if (extrema[i + 1].val > extrema[i].val) { - threshold = (extrema[i].val + ((extrema[i + 1].val - extrema[i].val) / 3) * 2) | 0; - } else { - threshold = (extrema[i + 1].val + ((extrema[i].val - extrema[i + 1].val) / 3)) | 0; - } - - for ( j = extrema[i].pos; j < extrema[i + 1].pos; j++) { - line[j] = line[j] > threshold ? 0 : 1; - } + for ( j = extrema[i].pos; j < extrema[i + 1].pos; j++) { + line[j] = line[j] > threshold ? 0 : 1; } + } - return { - line : line, - threshold : threshold - }; + return { + line : line, + threshold : threshold }; - - /** - * Used for development only - */ - Bresenham.debug = { - printFrequency: function(line, canvas) { - var i, - ctx = canvas.getContext("2d"); - canvas.width = line.length; - canvas.height = 256; - - ctx.beginPath(); - ctx.strokeStyle = "blue"; - for ( i = 0; i < line.length; i++) { - ctx.moveTo(i, 255); - ctx.lineTo(i, 255 - line[i]); - } - ctx.stroke(); - ctx.closePath(); - }, - - printPattern: function(line, canvas) { - var ctx = canvas.getContext("2d"), i; - - canvas.width = line.length; - ctx.fillColor = "black"; - for ( i = 0; i < line.length; i++) { - if (line[i] === 1) { - ctx.fillRect(i, 0, 1, 100); - } +}; + +/** + * Used for development only + */ +Bresenham.debug = { + printFrequency: function(line, canvas) { + var i, + ctx = canvas.getContext("2d"); + canvas.width = line.length; + canvas.height = 256; + + ctx.beginPath(); + ctx.strokeStyle = "blue"; + for ( i = 0; i < line.length; i++) { + ctx.moveTo(i, 255); + ctx.lineTo(i, 255 - line[i]); + } + ctx.stroke(); + ctx.closePath(); + }, + + printPattern: function(line, canvas) { + var ctx = canvas.getContext("2d"), i; + + canvas.width = line.length; + ctx.fillColor = "black"; + for ( i = 0; i < line.length; i++) { + if (line[i] === 1) { + ctx.fillRect(i, 0, 1, 100); } } - }; + } +}; - return (Bresenham); -}); \ No newline at end of file +export default Bresenham; diff --git a/src/camera_access.js b/src/camera_access.js index bf4e831f..17f4fd49 100644 --- a/src/camera_access.js +++ b/src/camera_access.js @@ -1,143 +1,139 @@ -/* jshint undef: true, unused: true, browser:true, devel: true */ -/* global define, MediaStreamTrack */ +const merge = require('lodash/object/merge'); -define(["html_utils"], function(HtmlUtils) { - "use strict"; - var streamRef, - loadedDataHandler; +var streamRef, + loadedDataHandler; - /** - * Wraps browser-specific getUserMedia - * @param {Object} constraints - * @param {Object} success Callback - * @param {Object} failure Callback - */ - function getUserMedia(constraints, success, failure) { - if (typeof navigator.getUserMedia !== 'undefined') { - navigator.getUserMedia(constraints, function (stream) { - streamRef = stream; - var videoSrc = (window.URL && window.URL.createObjectURL(stream)) || stream; - success.apply(null, [videoSrc]); - }, failure); - } else { - failure(new TypeError("getUserMedia not available")); - } +/** + * Wraps browser-specific getUserMedia + * @param {Object} constraints + * @param {Object} success Callback + * @param {Object} failure Callback + */ +function getUserMedia(constraints, success, failure) { + if (typeof navigator.getUserMedia !== 'undefined') { + navigator.getUserMedia(constraints, function (stream) { + streamRef = stream; + var videoSrc = (window.URL && window.URL.createObjectURL(stream)) || stream; + success.apply(null, [videoSrc]); + }, failure); + } else { + failure(new TypeError("getUserMedia not available")); } +} - function loadedData(video, callback) { - var attempts = 10; +function loadedData(video, callback) { + var attempts = 10; - function checkVideo() { - if (attempts > 0) { - if (video.videoWidth > 0 && video.videoHeight > 0) { - console.log(video.videoWidth + "px x " + video.videoHeight + "px"); - callback(); - } else { - window.setTimeout(checkVideo, 500); - } + function checkVideo() { + if (attempts > 0) { + if (video.videoWidth > 0 && video.videoHeight > 0) { + console.log(video.videoWidth + "px x " + video.videoHeight + "px"); + callback(); } else { - callback('Unable to play video stream. Is webcam working?'); + window.setTimeout(checkVideo, 500); } - attempts--; + } else { + callback('Unable to play video stream. Is webcam working?'); } - checkVideo(); + attempts--; } + checkVideo(); +} - /** - * Tries to attach the camera-stream to a given video-element - * and calls the callback function when the content is ready - * @param {Object} constraints - * @param {Object} video - * @param {Object} callback - */ - function initCamera(constraints, video, callback) { - getUserMedia(constraints, function(src) { - video.src = src; - if (loadedDataHandler) { - video.removeEventListener("loadeddata", loadedDataHandler, false); - } - loadedDataHandler = loadedData.bind(null, video, callback); - video.addEventListener('loadeddata', loadedDataHandler, false); - video.play(); - }, function(e) { - callback(e); - }); - } +/** + * Tries to attach the camera-stream to a given video-element + * and calls the callback function when the content is ready + * @param {Object} constraints + * @param {Object} video + * @param {Object} callback + */ +function initCamera(constraints, video, callback) { + getUserMedia(constraints, function(src) { + video.src = src; + if (loadedDataHandler) { + video.removeEventListener("loadeddata", loadedDataHandler, false); + } + loadedDataHandler = loadedData.bind(null, video, callback); + video.addEventListener('loadeddata', loadedDataHandler, false); + video.play(); + }, function(e) { + callback(e); + }); +} - /** - * Normalizes the incoming constraints to satisfy the current browser - * @param config - * @param cb Callback which is called whenever constraints are created - * @returns {*} - */ - function normalizeConstraints(config, cb) { - var constraints = { - audio: false, - video: true - }, - videoConstraints = HtmlUtils.mergeObjects({ - width: 640, - height: 480, - minAspectRatio: 0, - maxAspectRatio: 100, - facing: "environment" - }, config); +/** + * Normalizes the incoming constraints to satisfy the current browser + * @param config + * @param cb Callback which is called whenever constraints are created + * @returns {*} + */ +function normalizeConstraints(config, cb) { + var constraints = { + audio: false, + video: true + }, + videoConstraints = merge({ + width: 640, + height: 480, + minAspectRatio: 0, + maxAspectRatio: 100, + facing: "environment" + }, config); - if ( typeof MediaStreamTrack !== 'undefined' && typeof MediaStreamTrack.getSources !== 'undefined') { - MediaStreamTrack.getSources(function(sourceInfos) { - var videoSourceId; - for (var i = 0; i != sourceInfos.length; ++i) { - var sourceInfo = sourceInfos[i]; - if (sourceInfo.kind == "video" && sourceInfo.facing == videoConstraints.facing) { - videoSourceId = sourceInfo.id; - } + if ( typeof MediaStreamTrack !== 'undefined' && typeof MediaStreamTrack.getSources !== 'undefined') { + MediaStreamTrack.getSources(function(sourceInfos) { + var videoSourceId; + for (var i = 0; i != sourceInfos.length; ++i) { + var sourceInfo = sourceInfos[i]; + if (sourceInfo.kind == "video" && sourceInfo.facing == videoConstraints.facing) { + videoSourceId = sourceInfo.id; } - constraints.video = { - mandatory: { - minWidth: videoConstraints.width, - minHeight: videoConstraints.height, - minAspectRatio: videoConstraints.minAspectRatio, - maxAspectRatio: videoConstraints.maxAspectRatio - }, - optional: [{ - sourceId: videoSourceId - }] - }; - return cb(constraints); - }); - } else { + } constraints.video = { - mediaSource: "camera", - width: { min: videoConstraints.width, max: videoConstraints.width }, - height: { min: videoConstraints.height, max: videoConstraints.height }, - require: ["width", "height"] + mandatory: { + minWidth: videoConstraints.width, + minHeight: videoConstraints.height, + minAspectRatio: videoConstraints.minAspectRatio, + maxAspectRatio: videoConstraints.maxAspectRatio + }, + optional: [{ + sourceId: videoSourceId + }] }; return cb(constraints); - } - } - - /** - * Requests the back-facing camera of the user. The callback is called - * whenever the stream is ready to be consumed, or if an error occures. - * @param {Object} video - * @param {Object} callback - */ - function request(video, videoConstraints, callback) { - normalizeConstraints(videoConstraints, function(constraints) { - initCamera(constraints, video, callback); }); + } else { + constraints.video = { + mediaSource: "camera", + width: { min: videoConstraints.width, max: videoConstraints.width }, + height: { min: videoConstraints.height, max: videoConstraints.height }, + require: ["width", "height"] + }; + return cb(constraints); } +} - return { - request : function(video, constraints, callback) { - request(video, constraints, callback); - }, - release : function() { - var tracks = streamRef && streamRef.getVideoTracks(); - if (tracks.length) { - tracks[0].stop(); - } - streamRef = null; +/** + * Requests the back-facing camera of the user. The callback is called + * whenever the stream is ready to be consumed, or if an error occures. + * @param {Object} video + * @param {Object} callback + */ +function request(video, videoConstraints, callback) { + normalizeConstraints(videoConstraints, function(constraints) { + initCamera(constraints, video, callback); + }); +} + +export default { + request : function(video, constraints, callback) { + request(video, constraints, callback); + }, + release : function() { + var tracks = streamRef && streamRef.getVideoTracks(); + if (tracks.length) { + tracks[0].stop(); } - }; -}); + streamRef = null; + } +}; diff --git a/src/cluster.js b/src/cluster.js index 650a2c8a..7112a446 100644 --- a/src/cluster.js +++ b/src/cluster.js @@ -1,72 +1,63 @@ -/* jshint undef: true, unused: true, browser:true, devel: true */ -/* global define */ - -define(["gl-matrix"], function(glMatrix) { - "use strict"; - - var vec2 = glMatrix.vec2; +import {vec2} from 'gl-matrix'; /** - * Creates a cluster for grouping similar orientations of datapoints + * Creates a cluster for grouping similar orientations of datapoints */ - var Cluster = { - create : function(point, threshold) { - var points = [], center = { - rad : 0, - vec : vec2.clone([0, 0]) - }, pointMap = {}; +export default { + create : function(point, threshold) { + var points = [], center = { + rad : 0, + vec : vec2.clone([0, 0]) + }, pointMap = {}; + + function init() { + add(point); + updateCenter(); + } - function init() { - add(point); - updateCenter(); - } + function add(point) { + pointMap[point.id] = point; + points.push(point); + } - function add(point) { - pointMap[point.id] = point; - points.push(point); - } - - function updateCenter() { - var i, sum = 0; - for ( i = 0; i < points.length; i++) { - sum += points[i].rad; - } - center.rad = sum / points.length; - center.vec = vec2.clone([Math.cos(center.rad), Math.sin(center.rad)]); + function updateCenter() { + var i, sum = 0; + for ( i = 0; i < points.length; i++) { + sum += points[i].rad; } + center.rad = sum / points.length; + center.vec = vec2.clone([Math.cos(center.rad), Math.sin(center.rad)]); + } - init(); + init(); - return { - add : function(point) { - if (!pointMap[point.id]) { - add(point); - updateCenter(); - } - }, - fits : function(point) { - // check cosine similarity to center-angle - var similarity = Math.abs(vec2.dot(point.point.vec, center.vec)); - if (similarity > threshold) { - return true; - } - return false; - }, - getPoints : function() { - return points; - }, - getCenter : function() { - return center; + return { + add : function(point) { + if (!pointMap[point.id]) { + add(point); + updateCenter(); } - }; - }, - createPoint : function(point, id, property) { - return { - rad : point[property], - point : point, - id : id - }; - } - }; - - return (Cluster); -}); + }, + fits : function(point) { + // check cosine similarity to center-angle + var similarity = Math.abs(vec2.dot(point.point.vec, center.vec)); + if (similarity > threshold) { + return true; + } + return false; + }, + getPoints : function() { + return points; + }, + getCenter : function() { + return center; + } + }; + }, + createPoint : function(point, id, property) { + return { + rad : point[property], + point : point, + id : id + }; + } +}; diff --git a/src/codabar_reader.js b/src/codabar_reader.js index 087fb35f..d4d1817b 100644 --- a/src/codabar_reader.js +++ b/src/codabar_reader.js @@ -1,294 +1,284 @@ -/* jshint undef: true, unused: true, browser:true, devel: true */ -/* global define */ - -define( - [ - "./barcode_reader" - ], - function(BarcodeReader) { - "use strict"; - - function CodabarReader() { - BarcodeReader.call(this); - this._counters = []; - } +import BarcodeReader from './barcode_reader'; + +function CodabarReader() { + BarcodeReader.call(this); + this._counters = []; +} + +var properties = { + ALPHABETH_STRING: {value: "0123456789-$:/.+ABCD"}, + ALPHABET: {value: [48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 45, 36, 58, 47, 46, 43, 65, 66, 67, 68]}, + CHARACTER_ENCODINGS: {value: [0x003, 0x006, 0x009, 0x060, 0x012, 0x042, 0x021, 0x024, 0x030, 0x048, 0x00c, 0x018, 0x045, 0x051, 0x054, 0x015, 0x01A, 0x029, 0x00B, 0x00E]}, + START_END: {value: [0x01A, 0x029, 0x00B, 0x00E]}, + MIN_ENCODED_CHARS: {value: 4}, + MAX_ACCEPTABLE: {value: 2.0}, + PADDING: {value: 1.5}, + FORMAT: {value: "codabar", writeable: false} +}; + +CodabarReader.prototype = Object.create(BarcodeReader.prototype, properties); +CodabarReader.prototype.constructor = CodabarReader; + +CodabarReader.prototype._decode = function() { + var self = this, + result = [], + start, + decodedChar, + pattern, + nextStart, + end; + + this._counters = self._fillCounters(); + start = self._findStart(); + if (!start) { + return null; + } + nextStart = start.startCounter; - var properties = { - ALPHABETH_STRING: {value: "0123456789-$:/.+ABCD"}, - ALPHABET: {value: [48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 45, 36, 58, 47, 46, 43, 65, 66, 67, 68]}, - CHARACTER_ENCODINGS: {value: [0x003, 0x006, 0x009, 0x060, 0x012, 0x042, 0x021, 0x024, 0x030, 0x048, 0x00c, 0x018, 0x045, 0x051, 0x054, 0x015, 0x01A, 0x029, 0x00B, 0x00E]}, - START_END: {value: [0x01A, 0x029, 0x00B, 0x00E]}, - MIN_ENCODED_CHARS: {value: 4}, - MAX_ACCEPTABLE: {value: 2.0}, - PADDING: {value: 1.5}, - FORMAT: {value: "codabar", writeable: false} - }; - - CodabarReader.prototype = Object.create(BarcodeReader.prototype, properties); - CodabarReader.prototype.constructor = CodabarReader; - - CodabarReader.prototype._decode = function() { - var self = this, - result = [], - start, - decodedChar, - pattern, - nextStart, - end; - - this._counters = self._fillCounters(); - start = self._findStart(); - if (!start) { - return null; - } - nextStart = start.startCounter; - - do { - pattern = self._toPattern(nextStart); - if (pattern < 0) { - return null; - } - decodedChar = self._patternToChar(pattern); - if (decodedChar < 0){ - return null; - } - result.push(decodedChar); - nextStart += 8; - if (result.length > 1 && self._isStartEnd(pattern)) { - break; - } - } while(nextStart < self._counters.length); - - // verify end - if ((result.length - 2) < self.MIN_ENCODED_CHARS || !self._isStartEnd(pattern)) { - return null; - } + do { + pattern = self._toPattern(nextStart); + if (pattern < 0) { + return null; + } + decodedChar = self._patternToChar(pattern); + if (decodedChar < 0){ + return null; + } + result.push(decodedChar); + nextStart += 8; + if (result.length > 1 && self._isStartEnd(pattern)) { + break; + } + } while(nextStart < self._counters.length); - // verify end white space - if (!self._verifyWhitespace(start.startCounter, nextStart - 8)){ - return null; - } + // verify end + if ((result.length - 2) < self.MIN_ENCODED_CHARS || !self._isStartEnd(pattern)) { + return null; + } - if (!self._validateResult(result, start.startCounter)){ - return null; - } + // verify end white space + if (!self._verifyWhitespace(start.startCounter, nextStart - 8)){ + return null; + } - nextStart = nextStart > self._counters.length ? self._counters.length : nextStart; - end = start.start + self._sumCounters(start.startCounter, nextStart - 8); + if (!self._validateResult(result, start.startCounter)){ + return null; + } - return { - code : result.join(""), - start : start.start, - end : end, - startInfo : start, - decodedCodes : result - }; - }; + nextStart = nextStart > self._counters.length ? self._counters.length : nextStart; + end = start.start + self._sumCounters(start.startCounter, nextStart - 8); + + return { + code : result.join(""), + start : start.start, + end : end, + startInfo : start, + decodedCodes : result + }; +}; + +CodabarReader.prototype._verifyWhitespace = function(startCounter, endCounter) { + if ((startCounter - 1 <= 0) || this._counters[startCounter-1] >= (this._calculatePatternLength(startCounter) / 2.0)) { + if ((endCounter + 8 >= this._counters.length) || this._counters[endCounter+7] >= (this._calculatePatternLength(endCounter) / 2.0)) { + return true; + } + } + return false; +}; - CodabarReader.prototype._verifyWhitespace = function(startCounter, endCounter) { - if ((startCounter - 1 <= 0) || this._counters[startCounter-1] >= (this._calculatePatternLength(startCounter) / 2.0)) { - if ((endCounter + 8 >= this._counters.length) || this._counters[endCounter+7] >= (this._calculatePatternLength(endCounter) / 2.0)) { - return true; - } - } - return false; - }; +CodabarReader.prototype._calculatePatternLength = function(offset) { + var i, + sum = 0; - CodabarReader.prototype._calculatePatternLength = function(offset) { - var i, - sum = 0; + for (i = offset; i < offset + 7; i++) { + sum += this._counters[i]; + } - for (i = offset; i < offset + 7; i++) { - sum += this._counters[i]; + return sum; +}; + +CodabarReader.prototype._thresholdResultPattern = function(result, startCounter){ + var self = this, + categorization = { + space: { + narrow: { size: 0, counts: 0, min: 0, max: Number.MAX_VALUE}, + wide: {size: 0, counts: 0, min: 0, max: Number.MAX_VALUE} + }, + bar: { + narrow: { size: 0, counts: 0, min: 0, max: Number.MAX_VALUE}, + wide: { size: 0, counts: 0, min: 0, max: Number.MAX_VALUE} } + }, + kind, + cat, + i, + j, + pos = startCounter, + pattern; + + for (i = 0; i < result.length; i++){ + pattern = self._charToPattern(result[i]); + for (j = 6; j >= 0; j--) { + kind = (j & 1) === 2 ? categorization.bar : categorization.space; + cat = (pattern & 1) === 1 ? kind.wide : kind.narrow; + cat.size += self._counters[pos + j]; + cat.counts++; + pattern >>= 1; + } + pos += 8; + } - return sum; - }; - - CodabarReader.prototype._thresholdResultPattern = function(result, startCounter){ - var self = this, - categorization = { - space: { - narrow: { size: 0, counts: 0, min: 0, max: Number.MAX_VALUE}, - wide: {size: 0, counts: 0, min: 0, max: Number.MAX_VALUE} - }, - bar: { - narrow: { size: 0, counts: 0, min: 0, max: Number.MAX_VALUE}, - wide: { size: 0, counts: 0, min: 0, max: Number.MAX_VALUE} - } - }, - kind, - cat, - i, - j, - pos = startCounter, - pattern; - - for (i = 0; i < result.length; i++){ - pattern = self._charToPattern(result[i]); - for (j = 6; j >= 0; j--) { - kind = (j & 1) === 2 ? categorization.bar : categorization.space; - cat = (pattern & 1) === 1 ? kind.wide : kind.narrow; - cat.size += self._counters[pos + j]; - cat.counts++; - pattern >>= 1; - } - pos += 8; - } + ["space", "bar"].forEach(function(key) { + var kind = categorization[key]; + kind.wide.min = Math.floor((kind.narrow.size/kind.narrow.counts + kind.wide.size / kind.wide.counts) / 2); + kind.narrow.max = Math.ceil(kind.wide.min); + kind.wide.max = Math.ceil((kind.wide.size * self.MAX_ACCEPTABLE + self.PADDING) / kind.wide.counts); + }); - ["space", "bar"].forEach(function(key) { - var kind = categorization[key]; - kind.wide.min = Math.floor((kind.narrow.size/kind.narrow.counts + kind.wide.size / kind.wide.counts) / 2); - kind.narrow.max = Math.ceil(kind.wide.min); - kind.wide.max = Math.ceil((kind.wide.size * self.MAX_ACCEPTABLE + self.PADDING) / kind.wide.counts); - }); - - return categorization; - }; - - CodabarReader.prototype._charToPattern = function(char) { - var self = this, - charCode = char.charCodeAt(0), - i; - - for (i = 0; i < self.ALPHABET.length; i++) { - if (self.ALPHABET[i] === charCode){ - return self.CHARACTER_ENCODINGS[i]; - } - } - return 0x0; - }; - - CodabarReader.prototype._validateResult = function(result, startCounter) { - var self = this, - thresholds = self._thresholdResultPattern(result, startCounter), - i, - j, - kind, - cat, - size, - pos = startCounter, - pattern; - - for (i = 0; i < result.length; i++) { - pattern = self._charToPattern(result[i]); - for (j = 6; j >= 0; j--) { - kind = (j & 1) === 0 ? thresholds.bar : thresholds.space; - cat = (pattern & 1) === 1 ? kind.wide : kind.narrow; - size = self._counters[pos + j]; - if (size < cat.min || size > cat.max) { - return false; - } - pattern >>= 1; - } - pos += 8; - } - return true; - }; + return categorization; +}; - CodabarReader.prototype._patternToChar = function(pattern) { - var i, - self = this; +CodabarReader.prototype._charToPattern = function(char) { + var self = this, + charCode = char.charCodeAt(0), + i; - for (i = 0; i < self.CHARACTER_ENCODINGS.length; i++) { - if (self.CHARACTER_ENCODINGS[i] === pattern) { - return String.fromCharCode(self.ALPHABET[i]); - } - } - return -1; - }; - - CodabarReader.prototype._computeAlternatingThreshold = function(offset, end) { - var i, - min = Number.MAX_VALUE, - max = 0, - counter; - - for (i = offset; i < end; i += 2){ - counter = this._counters[i]; - if (counter > max) { - max = counter; - } - if (counter < min) { - min = counter; - } + for (i = 0; i < self.ALPHABET.length; i++) { + if (self.ALPHABET[i] === charCode){ + return self.CHARACTER_ENCODINGS[i]; + } + } + return 0x0; +}; + +CodabarReader.prototype._validateResult = function(result, startCounter) { + var self = this, + thresholds = self._thresholdResultPattern(result, startCounter), + i, + j, + kind, + cat, + size, + pos = startCounter, + pattern; + + for (i = 0; i < result.length; i++) { + pattern = self._charToPattern(result[i]); + for (j = 6; j >= 0; j--) { + kind = (j & 1) === 0 ? thresholds.bar : thresholds.space; + cat = (pattern & 1) === 1 ? kind.wide : kind.narrow; + size = self._counters[pos + j]; + if (size < cat.min || size > cat.max) { + return false; } + pattern >>= 1; + } + pos += 8; + } + return true; +}; - return ((min + max) / 2.0) | 0; - }; - - CodabarReader.prototype._toPattern = function(offset) { - var numCounters = 7, - end = offset + numCounters, - barThreshold, - spaceThreshold, - bitmask = 1 << (numCounters - 1), - pattern = 0, - i, - threshold; - - if (end > this._counters.length) { - return -1; - } +CodabarReader.prototype._patternToChar = function(pattern) { + var i, + self = this; - barThreshold = this._computeAlternatingThreshold(offset, end); - spaceThreshold = this._computeAlternatingThreshold(offset + 1, end); + for (i = 0; i < self.CHARACTER_ENCODINGS.length; i++) { + if (self.CHARACTER_ENCODINGS[i] === pattern) { + return String.fromCharCode(self.ALPHABET[i]); + } + } + return -1; +}; + +CodabarReader.prototype._computeAlternatingThreshold = function(offset, end) { + var i, + min = Number.MAX_VALUE, + max = 0, + counter; + + for (i = offset; i < end; i += 2){ + counter = this._counters[i]; + if (counter > max) { + max = counter; + } + if (counter < min) { + min = counter; + } + } - for (i = 0; i < numCounters; i++){ - threshold = (i & 1) === 0 ? barThreshold : spaceThreshold; - if (this._counters[offset + i] > threshold) { - pattern |= bitmask; - } - bitmask >>= 1; - } + return ((min + max) / 2.0) | 0; +}; + +CodabarReader.prototype._toPattern = function(offset) { + var numCounters = 7, + end = offset + numCounters, + barThreshold, + spaceThreshold, + bitmask = 1 << (numCounters - 1), + pattern = 0, + i, + threshold; + + if (end > this._counters.length) { + return -1; + } + + barThreshold = this._computeAlternatingThreshold(offset, end); + spaceThreshold = this._computeAlternatingThreshold(offset + 1, end); - return pattern; - }; + for (i = 0; i < numCounters; i++){ + threshold = (i & 1) === 0 ? barThreshold : spaceThreshold; + if (this._counters[offset + i] > threshold) { + pattern |= bitmask; + } + bitmask >>= 1; + } - CodabarReader.prototype._isStartEnd = function(pattern) { - var i; + return pattern; +}; - for (i = 0; i < this.START_END.length; i++) { - if (this.START_END[i] === pattern) { - return true; - } - } - return false; - }; +CodabarReader.prototype._isStartEnd = function(pattern) { + var i; - CodabarReader.prototype._sumCounters = function(start, end) { - var i, - sum = 0; + for (i = 0; i < this.START_END.length; i++) { + if (this.START_END[i] === pattern) { + return true; + } + } + return false; +}; - for (i = start; i < end; i++) { - sum += this._counters[i]; - } - return sum; - }; - - CodabarReader.prototype._findStart = function() { - var self = this, - i, - pattern, - start = self._nextUnset(self._row), - end; - - for (i = 1; i < this._counters.length; i++) { - pattern = self._toPattern(i); - if (pattern !== -1 && self._isStartEnd(pattern)) { - // TODO: Look for whitespace ahead - start += self._sumCounters(0, i); - end = start + self._sumCounters(i, i + 8); - return { - start: start, - end: end, - startCounter: i, - endCounter: i + 8 - }; - } - } - }; +CodabarReader.prototype._sumCounters = function(start, end) { + var i, + sum = 0; - return (CodabarReader); + for (i = start; i < end; i++) { + sum += this._counters[i]; + } + return sum; +}; + +CodabarReader.prototype._findStart = function() { + var self = this, + i, + pattern, + start = self._nextUnset(self._row), + end; + + for (i = 1; i < this._counters.length; i++) { + pattern = self._toPattern(i); + if (pattern !== -1 && self._isStartEnd(pattern)) { + // TODO: Look for whitespace ahead + start += self._sumCounters(0, i); + end = start + self._sumCounters(i, i + 8); + return { + start: start, + end: end, + startCounter: i, + endCounter: i + 8 + }; + } } -); \ No newline at end of file +}; + +export default CodabarReader; diff --git a/src/code_128_reader.js b/src/code_128_reader.js index 53275924..79284f94 100644 --- a/src/code_128_reader.js +++ b/src/code_128_reader.js @@ -1,423 +1,413 @@ -/* jshint undef: true, unused: true, browser:true, devel: true */ -/* global define */ +import BarcodeReader from './barcode_reader'; -define( - [ - "./barcode_reader" - ], - function(BarcodeReader) { - "use strict"; - - function Code128Reader() { - BarcodeReader.call(this); - } - - var properties = { - CODE_SHIFT : {value: 98}, - CODE_C : {value: 99}, - CODE_B : {value: 100}, - CODE_A : {value: 101}, - START_CODE_A : {value: 103}, - START_CODE_B : {value: 104}, - START_CODE_C : {value: 105}, - STOP_CODE : {value: 106}, - MODULO : {value: 11}, - CODE_PATTERN : {value: [ - [2, 1, 2, 2, 2, 2], - [2, 2, 2, 1, 2, 2], - [2, 2, 2, 2, 2, 1], - [1, 2, 1, 2, 2, 3], - [1, 2, 1, 3, 2, 2], - [1, 3, 1, 2, 2, 2], - [1, 2, 2, 2, 1, 3], - [1, 2, 2, 3, 1, 2], - [1, 3, 2, 2, 1, 2], - [2, 2, 1, 2, 1, 3], - [2, 2, 1, 3, 1, 2], - [2, 3, 1, 2, 1, 2], - [1, 1, 2, 2, 3, 2], - [1, 2, 2, 1, 3, 2], - [1, 2, 2, 2, 3, 1], - [1, 1, 3, 2, 2, 2], - [1, 2, 3, 1, 2, 2], - [1, 2, 3, 2, 2, 1], - [2, 2, 3, 2, 1, 1], - [2, 2, 1, 1, 3, 2], - [2, 2, 1, 2, 3, 1], - [2, 1, 3, 2, 1, 2], - [2, 2, 3, 1, 1, 2], - [3, 1, 2, 1, 3, 1], - [3, 1, 1, 2, 2, 2], - [3, 2, 1, 1, 2, 2], - [3, 2, 1, 2, 2, 1], - [3, 1, 2, 2, 1, 2], - [3, 2, 2, 1, 1, 2], - [3, 2, 2, 2, 1, 1], - [2, 1, 2, 1, 2, 3], - [2, 1, 2, 3, 2, 1], - [2, 3, 2, 1, 2, 1], - [1, 1, 1, 3, 2, 3], - [1, 3, 1, 1, 2, 3], - [1, 3, 1, 3, 2, 1], - [1, 1, 2, 3, 1, 3], - [1, 3, 2, 1, 1, 3], - [1, 3, 2, 3, 1, 1], - [2, 1, 1, 3, 1, 3], - [2, 3, 1, 1, 1, 3], - [2, 3, 1, 3, 1, 1], - [1, 1, 2, 1, 3, 3], - [1, 1, 2, 3, 3, 1], - [1, 3, 2, 1, 3, 1], - [1, 1, 3, 1, 2, 3], - [1, 1, 3, 3, 2, 1], - [1, 3, 3, 1, 2, 1], - [3, 1, 3, 1, 2, 1], - [2, 1, 1, 3, 3, 1], - [2, 3, 1, 1, 3, 1], - [2, 1, 3, 1, 1, 3], - [2, 1, 3, 3, 1, 1], - [2, 1, 3, 1, 3, 1], - [3, 1, 1, 1, 2, 3], - [3, 1, 1, 3, 2, 1], - [3, 3, 1, 1, 2, 1], - [3, 1, 2, 1, 1, 3], - [3, 1, 2, 3, 1, 1], - [3, 3, 2, 1, 1, 1], - [3, 1, 4, 1, 1, 1], - [2, 2, 1, 4, 1, 1], - [4, 3, 1, 1, 1, 1], - [1, 1, 1, 2, 2, 4], - [1, 1, 1, 4, 2, 2], - [1, 2, 1, 1, 2, 4], - [1, 2, 1, 4, 2, 1], - [1, 4, 1, 1, 2, 2], - [1, 4, 1, 2, 2, 1], - [1, 1, 2, 2, 1, 4], - [1, 1, 2, 4, 1, 2], - [1, 2, 2, 1, 1, 4], - [1, 2, 2, 4, 1, 1], - [1, 4, 2, 1, 1, 2], - [1, 4, 2, 2, 1, 1], - [2, 4, 1, 2, 1, 1], - [2, 2, 1, 1, 1, 4], - [4, 1, 3, 1, 1, 1], - [2, 4, 1, 1, 1, 2], - [1, 3, 4, 1, 1, 1], - [1, 1, 1, 2, 4, 2], - [1, 2, 1, 1, 4, 2], - [1, 2, 1, 2, 4, 1], - [1, 1, 4, 2, 1, 2], - [1, 2, 4, 1, 1, 2], - [1, 2, 4, 2, 1, 1], - [4, 1, 1, 2, 1, 2], - [4, 2, 1, 1, 1, 2], - [4, 2, 1, 2, 1, 1], - [2, 1, 2, 1, 4, 1], - [2, 1, 4, 1, 2, 1], - [4, 1, 2, 1, 2, 1], - [1, 1, 1, 1, 4, 3], - [1, 1, 1, 3, 4, 1], - [1, 3, 1, 1, 4, 1], - [1, 1, 4, 1, 1, 3], - [1, 1, 4, 3, 1, 1], - [4, 1, 1, 1, 1, 3], - [4, 1, 1, 3, 1, 1], - [1, 1, 3, 1, 4, 1], - [1, 1, 4, 1, 3, 1], - [3, 1, 1, 1, 4, 1], - [4, 1, 1, 1, 3, 1], - [2, 1, 1, 4, 1, 2], - [2, 1, 1, 2, 1, 4], - [2, 1, 1, 2, 3, 2], - [2, 3, 3, 1, 1, 1, 2] - ]}, - SINGLE_CODE_ERROR: {value: 1}, - AVG_CODE_ERROR: {value: 0.5}, - FORMAT: {value: "code_128", writeable: false} - }; - - Code128Reader.prototype = Object.create(BarcodeReader.prototype, properties); - Code128Reader.prototype.constructor = Code128Reader; - - Code128Reader.prototype._decodeCode = function(start) { - var counter = [0, 0, 0, 0, 0, 0], - i, - self = this, - offset = start, - isWhite = !self._row[offset], - counterPos = 0, - bestMatch = { - error : Number.MAX_VALUE, - code : -1, - start : start, - end : start - }, - code, - error, - normalized; +function Code128Reader() { + BarcodeReader.call(this); +} - for ( i = offset; i < self._row.length; i++) { - if (self._row[i] ^ isWhite) { - counter[counterPos]++; - } else { - if (counterPos === counter.length - 1) { - normalized = self._normalize(counter); - if (normalized) { - for (code = 0; code < self.CODE_PATTERN.length; code++) { - error = self._matchPattern(normalized, self.CODE_PATTERN[code]); - if (error < bestMatch.error) { - bestMatch.code = code; - bestMatch.error = error; - } - } - bestMatch.end = i; - return bestMatch; +var properties = { + CODE_SHIFT : {value: 98}, + CODE_C : {value: 99}, + CODE_B : {value: 100}, + CODE_A : {value: 101}, + START_CODE_A : {value: 103}, + START_CODE_B : {value: 104}, + START_CODE_C : {value: 105}, + STOP_CODE : {value: 106}, + MODULO : {value: 11}, + CODE_PATTERN : {value: [ + [2, 1, 2, 2, 2, 2], + [2, 2, 2, 1, 2, 2], + [2, 2, 2, 2, 2, 1], + [1, 2, 1, 2, 2, 3], + [1, 2, 1, 3, 2, 2], + [1, 3, 1, 2, 2, 2], + [1, 2, 2, 2, 1, 3], + [1, 2, 2, 3, 1, 2], + [1, 3, 2, 2, 1, 2], + [2, 2, 1, 2, 1, 3], + [2, 2, 1, 3, 1, 2], + [2, 3, 1, 2, 1, 2], + [1, 1, 2, 2, 3, 2], + [1, 2, 2, 1, 3, 2], + [1, 2, 2, 2, 3, 1], + [1, 1, 3, 2, 2, 2], + [1, 2, 3, 1, 2, 2], + [1, 2, 3, 2, 2, 1], + [2, 2, 3, 2, 1, 1], + [2, 2, 1, 1, 3, 2], + [2, 2, 1, 2, 3, 1], + [2, 1, 3, 2, 1, 2], + [2, 2, 3, 1, 1, 2], + [3, 1, 2, 1, 3, 1], + [3, 1, 1, 2, 2, 2], + [3, 2, 1, 1, 2, 2], + [3, 2, 1, 2, 2, 1], + [3, 1, 2, 2, 1, 2], + [3, 2, 2, 1, 1, 2], + [3, 2, 2, 2, 1, 1], + [2, 1, 2, 1, 2, 3], + [2, 1, 2, 3, 2, 1], + [2, 3, 2, 1, 2, 1], + [1, 1, 1, 3, 2, 3], + [1, 3, 1, 1, 2, 3], + [1, 3, 1, 3, 2, 1], + [1, 1, 2, 3, 1, 3], + [1, 3, 2, 1, 1, 3], + [1, 3, 2, 3, 1, 1], + [2, 1, 1, 3, 1, 3], + [2, 3, 1, 1, 1, 3], + [2, 3, 1, 3, 1, 1], + [1, 1, 2, 1, 3, 3], + [1, 1, 2, 3, 3, 1], + [1, 3, 2, 1, 3, 1], + [1, 1, 3, 1, 2, 3], + [1, 1, 3, 3, 2, 1], + [1, 3, 3, 1, 2, 1], + [3, 1, 3, 1, 2, 1], + [2, 1, 1, 3, 3, 1], + [2, 3, 1, 1, 3, 1], + [2, 1, 3, 1, 1, 3], + [2, 1, 3, 3, 1, 1], + [2, 1, 3, 1, 3, 1], + [3, 1, 1, 1, 2, 3], + [3, 1, 1, 3, 2, 1], + [3, 3, 1, 1, 2, 1], + [3, 1, 2, 1, 1, 3], + [3, 1, 2, 3, 1, 1], + [3, 3, 2, 1, 1, 1], + [3, 1, 4, 1, 1, 1], + [2, 2, 1, 4, 1, 1], + [4, 3, 1, 1, 1, 1], + [1, 1, 1, 2, 2, 4], + [1, 1, 1, 4, 2, 2], + [1, 2, 1, 1, 2, 4], + [1, 2, 1, 4, 2, 1], + [1, 4, 1, 1, 2, 2], + [1, 4, 1, 2, 2, 1], + [1, 1, 2, 2, 1, 4], + [1, 1, 2, 4, 1, 2], + [1, 2, 2, 1, 1, 4], + [1, 2, 2, 4, 1, 1], + [1, 4, 2, 1, 1, 2], + [1, 4, 2, 2, 1, 1], + [2, 4, 1, 2, 1, 1], + [2, 2, 1, 1, 1, 4], + [4, 1, 3, 1, 1, 1], + [2, 4, 1, 1, 1, 2], + [1, 3, 4, 1, 1, 1], + [1, 1, 1, 2, 4, 2], + [1, 2, 1, 1, 4, 2], + [1, 2, 1, 2, 4, 1], + [1, 1, 4, 2, 1, 2], + [1, 2, 4, 1, 1, 2], + [1, 2, 4, 2, 1, 1], + [4, 1, 1, 2, 1, 2], + [4, 2, 1, 1, 1, 2], + [4, 2, 1, 2, 1, 1], + [2, 1, 2, 1, 4, 1], + [2, 1, 4, 1, 2, 1], + [4, 1, 2, 1, 2, 1], + [1, 1, 1, 1, 4, 3], + [1, 1, 1, 3, 4, 1], + [1, 3, 1, 1, 4, 1], + [1, 1, 4, 1, 1, 3], + [1, 1, 4, 3, 1, 1], + [4, 1, 1, 1, 1, 3], + [4, 1, 1, 3, 1, 1], + [1, 1, 3, 1, 4, 1], + [1, 1, 4, 1, 3, 1], + [3, 1, 1, 1, 4, 1], + [4, 1, 1, 1, 3, 1], + [2, 1, 1, 4, 1, 2], + [2, 1, 1, 2, 1, 4], + [2, 1, 1, 2, 3, 2], + [2, 3, 3, 1, 1, 1, 2] + ]}, + SINGLE_CODE_ERROR: {value: 1}, + AVG_CODE_ERROR: {value: 0.5}, + FORMAT: {value: "code_128", writeable: false} +}; + +Code128Reader.prototype = Object.create(BarcodeReader.prototype, properties); +Code128Reader.prototype.constructor = Code128Reader; + +Code128Reader.prototype._decodeCode = function(start) { + var counter = [0, 0, 0, 0, 0, 0], + i, + self = this, + offset = start, + isWhite = !self._row[offset], + counterPos = 0, + bestMatch = { + error : Number.MAX_VALUE, + code : -1, + start : start, + end : start + }, + code, + error, + normalized; + + for ( i = offset; i < self._row.length; i++) { + if (self._row[i] ^ isWhite) { + counter[counterPos]++; + } else { + if (counterPos === counter.length - 1) { + normalized = self._normalize(counter); + if (normalized) { + for (code = 0; code < self.CODE_PATTERN.length; code++) { + error = self._matchPattern(normalized, self.CODE_PATTERN[code]); + if (error < bestMatch.error) { + bestMatch.code = code; + bestMatch.error = error; } - } else { - counterPos++; } - counter[counterPos] = 1; - isWhite = !isWhite; + bestMatch.end = i; + return bestMatch; } + } else { + counterPos++; } - return null; - }; + counter[counterPos] = 1; + isWhite = !isWhite; + } + } + return null; +}; - Code128Reader.prototype._findStart = function() { - var counter = [0, 0, 0, 0, 0, 0], - i, - self = this, - offset = self._nextSet(self._row), - isWhite = false, - counterPos = 0, - bestMatch = { - error : Number.MAX_VALUE, - code : -1, - start : 0, - end : 0 - }, - code, - error, - j, - sum, - normalized; - - for ( i = offset; i < self._row.length; i++) { - if (self._row[i] ^ isWhite) { - counter[counterPos]++; - } else { - if (counterPos === counter.length - 1) { - sum = 0; - for ( j = 0; j < counter.length; j++) { - sum += counter[j]; - } - normalized = self._normalize(counter); - if (normalized) { - for (code = self.START_CODE_A; code <= self.START_CODE_C; code++) { - error = self._matchPattern(normalized, self.CODE_PATTERN[code]); - if (error < bestMatch.error) { - bestMatch.code = code; - bestMatch.error = error; - } - } - if (bestMatch.error < self.AVG_CODE_ERROR) { - bestMatch.start = i - sum; - bestMatch.end = i; - return bestMatch; - } - } +Code128Reader.prototype._findStart = function() { + var counter = [0, 0, 0, 0, 0, 0], + i, + self = this, + offset = self._nextSet(self._row), + isWhite = false, + counterPos = 0, + bestMatch = { + error : Number.MAX_VALUE, + code : -1, + start : 0, + end : 0 + }, + code, + error, + j, + sum, + normalized; - for ( j = 0; j < 4; j++) { - counter[j] = counter[j + 2]; + for ( i = offset; i < self._row.length; i++) { + if (self._row[i] ^ isWhite) { + counter[counterPos]++; + } else { + if (counterPos === counter.length - 1) { + sum = 0; + for ( j = 0; j < counter.length; j++) { + sum += counter[j]; + } + normalized = self._normalize(counter); + if (normalized) { + for (code = self.START_CODE_A; code <= self.START_CODE_C; code++) { + error = self._matchPattern(normalized, self.CODE_PATTERN[code]); + if (error < bestMatch.error) { + bestMatch.code = code; + bestMatch.error = error; } - counter[4] = 0; - counter[5] = 0; - counterPos--; - } else { - counterPos++; } - counter[counterPos] = 1; - isWhite = !isWhite; + if (bestMatch.error < self.AVG_CODE_ERROR) { + bestMatch.start = i - sum; + bestMatch.end = i; + return bestMatch; + } } + + for ( j = 0; j < 4; j++) { + counter[j] = counter[j + 2]; + } + counter[4] = 0; + counter[5] = 0; + counterPos--; + } else { + counterPos++; } - return null; - }; + counter[counterPos] = 1; + isWhite = !isWhite; + } + } + return null; +}; - Code128Reader.prototype._decode = function() { - var self = this, - startInfo = self._findStart(), - code = null, - done = false, - result = [], - multiplier = 0, - checksum = 0, - codeset, - rawResult = [], - decodedCodes = [], - shiftNext = false, - unshift, - lastCharacterWasPrintable; +Code128Reader.prototype._decode = function() { + var self = this, + startInfo = self._findStart(), + code = null, + done = false, + result = [], + multiplier = 0, + checksum = 0, + codeset, + rawResult = [], + decodedCodes = [], + shiftNext = false, + unshift, + lastCharacterWasPrintable; - if (startInfo === null) { - return null; + if (startInfo === null) { + return null; + } + code = { + code : startInfo.code, + start : startInfo.start, + end : startInfo.end + }; + decodedCodes.push(code); + checksum = code.code; + switch(code.code) { + case self.START_CODE_A: + codeset = self.CODE_A; + break; + case self.START_CODE_B: + codeset = self.CODE_B; + break; + case self.START_CODE_C: + codeset = self.CODE_C; + break; + default: + return null; + } + + while (!done) { + unshift = shiftNext; + shiftNext = false; + code = self._decodeCode(code.end); + if (code !== null) { + if (code.code !== self.STOP_CODE) { + rawResult.push(code.code); + multiplier++; + checksum += multiplier * code.code; } - code = { - code : startInfo.code, - start : startInfo.start, - end : startInfo.end - }; decodedCodes.push(code); - checksum = code.code; - switch(code.code) { - case self.START_CODE_A: - codeset = self.CODE_A; - break; - case self.START_CODE_B: - codeset = self.CODE_B; - break; - case self.START_CODE_C: - codeset = self.CODE_C; - break; - default: - return null; - } - while (!done) { - unshift = shiftNext; - shiftNext = false; - code = self._decodeCode(code.end); - if (code !== null) { - if (code.code !== self.STOP_CODE) { - rawResult.push(code.code); - multiplier++; - checksum += multiplier * code.code; - } - decodedCodes.push(code); - - switch(codeset) { - case self.CODE_A: - if (code.code < 64) { - result.push(String.fromCharCode(32 + code.code)); - } else if (code.code < 96) { - result.push(String.fromCharCode(code.code - 64)); - } else { - switch (code.code) { - case self.CODE_SHIFT: - shiftNext = true; - codeset = self.CODE_B; - break; - case self.CODE_B: - codeset = self.CODE_B; - break; - case self.CODE_C: - codeset = self.CODE_C; - break; - case self.STOP_CODE: - done = true; - break; - } - } + switch(codeset) { + case self.CODE_A: + if (code.code < 64) { + result.push(String.fromCharCode(32 + code.code)); + } else if (code.code < 96) { + result.push(String.fromCharCode(code.code - 64)); + } else { + switch (code.code) { + case self.CODE_SHIFT: + shiftNext = true; + codeset = self.CODE_B; break; case self.CODE_B: - if (code.code < 96) { - result.push(String.fromCharCode(32 + code.code)); - } else { - if (code.code != self.STOP_CODE) { - lastCharacterWasPrintable = false; - } - switch (code.code) { - case self.CODE_SHIFT: - shiftNext = true; - codeset = self.CODE_A; - break; - case self.CODE_A: - codeset = self.CODE_A; - break; - case self.CODE_C: - codeset = self.CODE_C; - break; - case self.STOP_CODE: - done = true; - break; - } - } + codeset = self.CODE_B; break; case self.CODE_C: - if (code.code < 100) { - result.push(code.code < 10 ? "0" + code.code : code.code); - } - switch (code.code) { - case self.CODE_A: - codeset = self.CODE_A; - break; - case self.CODE_B: - codeset = self.CODE_B; - break; - case self.STOP_CODE: - done = true; - break; - } + codeset = self.CODE_C; + break; + case self.STOP_CODE: + done = true; break; } + } + break; + case self.CODE_B: + if (code.code < 96) { + result.push(String.fromCharCode(32 + code.code)); } else { - done = true; + if (code.code != self.STOP_CODE) { + lastCharacterWasPrintable = false; + } + switch (code.code) { + case self.CODE_SHIFT: + shiftNext = true; + codeset = self.CODE_A; + break; + case self.CODE_A: + codeset = self.CODE_A; + break; + case self.CODE_C: + codeset = self.CODE_C; + break; + case self.STOP_CODE: + done = true; + break; + } } - if (unshift) { - codeset = codeset == self.CODE_A ? self.CODE_B : self.CODE_A; + break; + case self.CODE_C: + if (code.code < 100) { + result.push(code.code < 10 ? "0" + code.code : code.code); + } + switch (code.code) { + case self.CODE_A: + codeset = self.CODE_A; + break; + case self.CODE_B: + codeset = self.CODE_B; + break; + case self.STOP_CODE: + done = true; + break; } + break; } + } else { + done = true; + } + if (unshift) { + codeset = codeset == self.CODE_A ? self.CODE_B : self.CODE_A; + } + } - if (code === null) { - return null; - } + if (code === null) { + return null; + } - // find end bar - code.end = self._nextUnset(self._row, code.end); - if(!self._verifyTrailingWhitespace(code)){ - return null; - } + // find end bar + code.end = self._nextUnset(self._row, code.end); + if(!self._verifyTrailingWhitespace(code)){ + return null; + } - // checksum - // Does not work correctly yet!!! startcode - endcode? - checksum -= multiplier * rawResult[rawResult.length - 1]; - if (checksum % 103 != rawResult[rawResult.length - 1]) { - return null; - } + // checksum + // Does not work correctly yet!!! startcode - endcode? + checksum -= multiplier * rawResult[rawResult.length - 1]; + if (checksum % 103 != rawResult[rawResult.length - 1]) { + return null; + } - if (!result.length) { - return null; - } + if (!result.length) { + return null; + } - // remove last code from result (checksum) - result.splice(result.length - 1, 1); + // remove last code from result (checksum) + result.splice(result.length - 1, 1); - return { - code : result.join(""), - start : startInfo.start, - end : code.end, - codeset : codeset, - startInfo : startInfo, - decodedCodes : decodedCodes, - endInfo : code - }; - }; + return { + code : result.join(""), + start : startInfo.start, + end : code.end, + codeset : codeset, + startInfo : startInfo, + decodedCodes : decodedCodes, + endInfo : code + }; +}; - BarcodeReader.prototype._verifyTrailingWhitespace = function(endInfo) { - var self = this, - trailingWhitespaceEnd; +BarcodeReader.prototype._verifyTrailingWhitespace = function(endInfo) { + var self = this, + trailingWhitespaceEnd; - trailingWhitespaceEnd = endInfo.end + ((endInfo.end - endInfo.start) / 2); - if (trailingWhitespaceEnd < self._row.length) { - if (self._matchRange(endInfo.end, trailingWhitespaceEnd, 0)) { - return endInfo; - } - } - return null; - }; - - return (Code128Reader); + trailingWhitespaceEnd = endInfo.end + ((endInfo.end - endInfo.start) / 2); + if (trailingWhitespaceEnd < self._row.length) { + if (self._matchRange(endInfo.end, trailingWhitespaceEnd, 0)) { + return endInfo; + } } -); \ No newline at end of file + return null; +}; + +export default Code128Reader; diff --git a/src/code_39_reader.js b/src/code_39_reader.js index a02fee53..3b8f085d 100644 --- a/src/code_39_reader.js +++ b/src/code_39_reader.js @@ -1,221 +1,211 @@ -/* jshint undef: true, unused: true, browser:true, devel: true */ -/* global define */ - -define( - [ - "./barcode_reader", - "./array_helper" - ], - function(BarcodeReader, ArrayHelper) { - "use strict"; - - function Code39Reader() { - BarcodeReader.call(this); +import BarcodeReader from './barcode_reader'; +import ArrayHelper from './array_helper'; + +function Code39Reader() { + BarcodeReader.call(this); +} + +var properties = { + ALPHABETH_STRING: {value: "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ-. *$/+%"}, + ALPHABET: {value: [48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 45, 46, 32, 42, 36, 47, 43, 37]}, + CHARACTER_ENCODINGS: {value: [0x034, 0x121, 0x061, 0x160, 0x031, 0x130, 0x070, 0x025, 0x124, 0x064, 0x109, 0x049, 0x148, 0x019, 0x118, 0x058, 0x00D, 0x10C, 0x04C, 0x01C, 0x103, 0x043, 0x142, 0x013, 0x112, 0x052, 0x007, 0x106, 0x046, 0x016, 0x181, 0x0C1, 0x1C0, 0x091, 0x190, 0x0D0, 0x085, 0x184, 0x0C4, 0x094, 0x0A8, 0x0A2, 0x08A, 0x02A]}, + ASTERISK: {value: 0x094}, + FORMAT: {value: "code_39", writeable: false} +}; + +Code39Reader.prototype = Object.create(BarcodeReader.prototype, properties); +Code39Reader.prototype.constructor = Code39Reader; + +Code39Reader.prototype._toCounters = function(start, counter) { + var self = this, + numCounters = counter.length, + end = self._row.length, + isWhite = !self._row[start], + i, + counterPos = 0; + + ArrayHelper.init(counter, 0); + + for ( i = start; i < end; i++) { + if (self._row[i] ^ isWhite) { + counter[counterPos]++; + } else { + counterPos++; + if (counterPos === numCounters) { + break; + } else { + counter[counterPos] = 1; + isWhite = !isWhite; + } } + } - var properties = { - ALPHABETH_STRING: {value: "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ-. *$/+%"}, - ALPHABET: {value: [48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 45, 46, 32, 42, 36, 47, 43, 37]}, - CHARACTER_ENCODINGS: {value: [0x034, 0x121, 0x061, 0x160, 0x031, 0x130, 0x070, 0x025, 0x124, 0x064, 0x109, 0x049, 0x148, 0x019, 0x118, 0x058, 0x00D, 0x10C, 0x04C, 0x01C, 0x103, 0x043, 0x142, 0x013, 0x112, 0x052, 0x007, 0x106, 0x046, 0x016, 0x181, 0x0C1, 0x1C0, 0x091, 0x190, 0x0D0, 0x085, 0x184, 0x0C4, 0x094, 0x0A8, 0x0A2, 0x08A, 0x02A]}, - ASTERISK: {value: 0x094}, - FORMAT: {value: "code_39", writeable: false} - }; - - Code39Reader.prototype = Object.create(BarcodeReader.prototype, properties); - Code39Reader.prototype.constructor = Code39Reader; - - Code39Reader.prototype._toCounters = function(start, counter) { - var self = this, - numCounters = counter.length, - end = self._row.length, - isWhite = !self._row[start], - i, - counterPos = 0; - - ArrayHelper.init(counter, 0); - - for ( i = start; i < end; i++) { - if (self._row[i] ^ isWhite) { - counter[counterPos]++; - } else { - counterPos++; - if (counterPos === numCounters) { - break; - } else { - counter[counterPos] = 1; - isWhite = !isWhite; - } - } - } + return counter; +}; + +Code39Reader.prototype._decode = function() { + var self = this, + counters = [0,0,0,0,0,0,0,0,0], + result = [], + start = self._findStart(), + decodedChar, + lastStart, + pattern, + nextStart; + + if (!start) { + return null; + } + nextStart = self._nextSet(self._row, start.end); - return counter; - }; - - Code39Reader.prototype._decode = function() { - var self = this, - counters = [0,0,0,0,0,0,0,0,0], - result = [], - start = self._findStart(), - decodedChar, - lastStart, - pattern, - nextStart; - - if (!start) { - return null; - } - nextStart = self._nextSet(self._row, start.end); + do { + counters = self._toCounters(nextStart, counters); + pattern = self._toPattern(counters); + if (pattern < 0) { + return null; + } + decodedChar = self._patternToChar(pattern); + if (decodedChar < 0){ + return null; + } + result.push(decodedChar); + lastStart = nextStart; + nextStart += ArrayHelper.sum(counters); + nextStart = self._nextSet(self._row, nextStart); + } while(decodedChar !== '*'); + result.pop(); + + if (!result.length) { + return null; + } - do { - counters = self._toCounters(nextStart, counters); - pattern = self._toPattern(counters); - if (pattern < 0) { - return null; - } - decodedChar = self._patternToChar(pattern); - if (decodedChar < 0){ - return null; - } - result.push(decodedChar); - lastStart = nextStart; - nextStart += ArrayHelper.sum(counters); - nextStart = self._nextSet(self._row, nextStart); - } while(decodedChar !== '*'); - result.pop(); - - if (!result.length) { - return null; - } + if(!self._verifyTrailingWhitespace(lastStart, nextStart, counters)) { + return null; + } - if(!self._verifyTrailingWhitespace(lastStart, nextStart, counters)) { - return null; - } + return { + code : result.join(""), + start : start.start, + end : nextStart, + startInfo : start, + decodedCodes : result + }; +}; + +Code39Reader.prototype._verifyTrailingWhitespace = function(lastStart, nextStart, counters) { + var trailingWhitespaceEnd, + patternSize = ArrayHelper.sum(counters); + + trailingWhitespaceEnd = nextStart - lastStart - patternSize; + if ((trailingWhitespaceEnd * 3) >= patternSize) { + return true; + } + return false; +}; - return { - code : result.join(""), - start : start.start, - end : nextStart, - startInfo : start, - decodedCodes : result - }; - }; - - Code39Reader.prototype._verifyTrailingWhitespace = function(lastStart, nextStart, counters) { - var trailingWhitespaceEnd, - patternSize = ArrayHelper.sum(counters); - - trailingWhitespaceEnd = nextStart - lastStart - patternSize; - if ((trailingWhitespaceEnd * 3) >= patternSize) { - return true; - } - return false; - }; +Code39Reader.prototype._patternToChar = function(pattern) { + var i, + self = this; - Code39Reader.prototype._patternToChar = function(pattern) { - var i, - self = this; + for (i = 0; i < self.CHARACTER_ENCODINGS.length; i++) { + if (self.CHARACTER_ENCODINGS[i] === pattern) { + return String.fromCharCode(self.ALPHABET[i]); + } + } +}; - for (i = 0; i < self.CHARACTER_ENCODINGS.length; i++) { - if (self.CHARACTER_ENCODINGS[i] === pattern) { - return String.fromCharCode(self.ALPHABET[i]); - } - } - }; +Code39Reader.prototype._findNextWidth = function(counters, current) { + var i, + minWidth = Number.MAX_VALUE; - Code39Reader.prototype._findNextWidth = function(counters, current) { - var i, - minWidth = Number.MAX_VALUE; + for (i = 0; i < counters.length; i++) { + if (counters[i] < minWidth && counters[i] > current) { + minWidth = counters[i]; + } + } - for (i = 0; i < counters.length; i++) { - if (counters[i] < minWidth && counters[i] > current) { - minWidth = counters[i]; - } + return minWidth; +}; + +Code39Reader.prototype._toPattern = function(counters) { + var numCounters = counters.length, + maxNarrowWidth = 0, + numWideBars = numCounters, + wideBarWidth = 0, + self = this, + pattern, + i; + + while(numWideBars > 3) { + maxNarrowWidth = self._findNextWidth(counters, maxNarrowWidth); + numWideBars = 0; + pattern = 0; + for (i = 0; i < numCounters; i++) { + if (counters[i] > maxNarrowWidth) { + pattern |= 1 << (numCounters - 1 - i); + numWideBars++; + wideBarWidth += counters[i]; } + } - return minWidth; - }; - - Code39Reader.prototype._toPattern = function(counters) { - var numCounters = counters.length, - maxNarrowWidth = 0, - numWideBars = numCounters, - wideBarWidth = 0, - self = this, - pattern, - i; - - while(numWideBars > 3) { - maxNarrowWidth = self._findNextWidth(counters, maxNarrowWidth); - numWideBars = 0; - pattern = 0; - for (i = 0; i < numCounters; i++) { - if (counters[i] > maxNarrowWidth) { - pattern |= 1 << (numCounters - 1 - i); - numWideBars++; - wideBarWidth += counters[i]; - } - } - - if (numWideBars === 3) { - for (i = 0; i < numCounters && numWideBars > 0; i++) { - if (counters[i] > maxNarrowWidth) { - numWideBars--; - if ((counters[i] * 2) >= wideBarWidth) { - return -1; - } - } + if (numWideBars === 3) { + for (i = 0; i < numCounters && numWideBars > 0; i++) { + if (counters[i] > maxNarrowWidth) { + numWideBars--; + if ((counters[i] * 2) >= wideBarWidth) { + return -1; } - return pattern; } } - return -1; - }; - - Code39Reader.prototype._findStart = function() { - var self = this, - offset = self._nextSet(self._row), - patternStart = offset, - counter = [0,0,0,0,0,0,0,0,0], - counterPos = 0, - isWhite = false, - i, - j, - whiteSpaceMustStart; - - for ( i = offset; i < self._row.length; i++) { - if (self._row[i] ^ isWhite) { - counter[counterPos]++; - } else { - if (counterPos === counter.length - 1) { - - // find start pattern - if (self._toPattern(counter) === self.ASTERISK) { - whiteSpaceMustStart = Math.floor(Math.max(0, patternStart - ((i - patternStart) / 4))); - if (self._matchRange(whiteSpaceMustStart, patternStart, 0)) { - return { - start: patternStart, - end: i - }; - } - } - - patternStart += counter[0] + counter[1]; - for ( j = 0; j < 7; j++) { - counter[j] = counter[j + 2]; - } - counter[7] = 0; - counter[8] = 0; - counterPos--; - } else { - counterPos++; + return pattern; + } + } + return -1; +}; + +Code39Reader.prototype._findStart = function() { + var self = this, + offset = self._nextSet(self._row), + patternStart = offset, + counter = [0,0,0,0,0,0,0,0,0], + counterPos = 0, + isWhite = false, + i, + j, + whiteSpaceMustStart; + + for ( i = offset; i < self._row.length; i++) { + if (self._row[i] ^ isWhite) { + counter[counterPos]++; + } else { + if (counterPos === counter.length - 1) { + + // find start pattern + if (self._toPattern(counter) === self.ASTERISK) { + whiteSpaceMustStart = Math.floor(Math.max(0, patternStart - ((i - patternStart) / 4))); + if (self._matchRange(whiteSpaceMustStart, patternStart, 0)) { + return { + start: patternStart, + end: i + }; } - counter[counterPos] = 1; - isWhite = !isWhite; } - } - return null; - }; - return (Code39Reader); + patternStart += counter[0] + counter[1]; + for ( j = 0; j < 7; j++) { + counter[j] = counter[j + 2]; + } + counter[7] = 0; + counter[8] = 0; + counterPos--; + } else { + counterPos++; + } + counter[counterPos] = 1; + isWhite = !isWhite; + } } -); \ No newline at end of file + return null; +}; + +export default Code39Reader; diff --git a/src/code_39_vin_reader.js b/src/code_39_vin_reader.js index 8dca2598..3069e59c 100644 --- a/src/code_39_vin_reader.js +++ b/src/code_39_vin_reader.js @@ -1,59 +1,49 @@ -/* jshint undef: true, unused: true, browser:true, devel: true */ -/* global define */ - -define( - [ - "./code_39_reader" - ], - function(Code39Reader) { - "use strict"; - - function Code39VINReader() { - Code39Reader.call(this); - } - - var patterns = { - IOQ: /[IOQ]/g, - AZ09: /[A-Z0-9]{17}/ - }; - - Code39VINReader.prototype = Object.create(Code39Reader.prototype); - Code39VINReader.prototype.constructor = Code39VINReader; - - // Cribbed from: - // /~https://github.com/zxing/zxing/blob/master/core/src/main/java/com/google/zxing/client/result/VINResultParser.java - Code39VINReader.prototype._decode = function() { - var result = Code39Reader.prototype._decode.apply(this); - if (!result) { - return null; - } - - var code = result.code; - - if (!code) { - return; - } - - code = code.replace(patterns.IOQ, ''); - - if (!code.match(patterns.AZ09)) { - console.log('Failed AZ09 pattern code:', code); - return null; - } - - if (!this._checkChecksum(code)) { - return null; - } - - result.code = code; - return result; - }; - - Code39VINReader.prototype._checkChecksum = function(code) { - // TODO - return !!code; - }; - - return (Code39VINReader); +import Code39Reader from './code_39_reader'; + +function Code39VINReader() { + Code39Reader.call(this); +} + +var patterns = { + IOQ: /[IOQ]/g, + AZ09: /[A-Z0-9]{17}/ +}; + +Code39VINReader.prototype = Object.create(Code39Reader.prototype); +Code39VINReader.prototype.constructor = Code39VINReader; + +// Cribbed from: +// /~https://github.com/zxing/zxing/blob/master/core/src/main/java/com/google/zxing/client/result/VINResultParser.java +Code39VINReader.prototype._decode = function() { + var result = Code39Reader.prototype._decode.apply(this); + if (!result) { + return null; } -); + + var code = result.code; + + if (!code) { + return; + } + + code = code.replace(patterns.IOQ, ''); + + if (!code.match(patterns.AZ09)) { + console.log('Failed AZ09 pattern code:', code); + return null; + } + + if (!this._checkChecksum(code)) { + return null; + } + + result.code = code; + return result; +}; + +Code39VINReader.prototype._checkChecksum = function(code) { + // TODO + return !!code; +}; + +export default Code39VINReader; diff --git a/src/config.js b/src/config.js index 72361805..1212877c 100644 --- a/src/config.js +++ b/src/config.js @@ -1,44 +1,40 @@ -/** - * The basic configuration - */ - -define(function(){ - var config = { - inputStream: { name: "Live", - type: "LiveStream", - constraints: { - width: 640, - height: 480, - minAspectRatio: 0, - maxAspectRatio: 100, - facing: "environment" // or user - }, - area: { - top: "0%", - right: "0%", - left: "0%", - bottom: "0%" - }, - singleChannel: false // true: only the red color-channel is read - }, - tracking: false, - debug: false, - controls: false, - locate: true, - numOfWorkers: 4, - visual: { +export default { + inputStream: { + name: "Live", + type: "LiveStream", + constraints: { + width: 640, + height: 480, + minAspectRatio: 0, + maxAspectRatio: 100, + facing: "environment" // or user + }, + area: { + top: "0%", + right: "0%", + left: "0%", + bottom: "0%" + }, + singleChannel: false // true: only the red color-channel is read + }, + tracking: false, + debug: false, + controls: false, + locate: true, + numOfWorkers: 4, + visual: { show: true - }, - decoder:{ + }, + decoder: { drawBoundingBox: false, showFrequency: false, drawScanline: false, showPattern: false, readers: [ - 'code_128_reader' + 'code_128_reader' ] - }, - locator: { + }, + locator: { halfSample: true, patchSize: "medium", // x-small, small, medium, large, x-large showCanvas: false, @@ -49,12 +45,9 @@ define(function(){ showPatchLabels: false, showRemainingPatchLabels: false, boxFromPatches: { - showTransformed: false, - showTransformedBox: false, - showBB: false + showTransformed: false, + showTransformedBox: false, + showBB: false } - } - }; - - return config; -}); + } +}; diff --git a/src/cv_utils.js b/src/cv_utils.js index 01155d53..2380e559 100644 --- a/src/cv_utils.js +++ b/src/cv_utils.js @@ -1,719 +1,703 @@ -/* jshint undef: true, unused: true, browser:true, devel: true */ -/* global define */ - -define(['cluster', "array_helper", "gl-matrix"], function(Cluster2, ArrayHelper, glMatrix) { - - "use strict"; - /* - * cv_utils.js - * Collection of CV functions and libraries - */ - - /** - * Namespace for various CV alorithms - * @class Represents a collection of useful CV algorithms/functions - */ - - var CVUtils = {}, - vec2 = glMatrix.vec2, - vec3 = glMatrix.vec3; - - /** - * @param x x-coordinate - * @param y y-coordinate - * @return ImageReference {x,y} Coordinate - */ - CVUtils.imageRef = function(x, y) { - var that = { - x : x, - y : y, - toVec2 : function() { - return vec2.clone([this.x, this.y]); - }, - toVec3 : function() { - return vec3.clone([this.x, this.y, 1]); - }, - round : function() { - this.x = this.x > 0.0 ? Math.floor(this.x + 0.5) : Math.floor(this.x - 0.5); - this.y = this.y > 0.0 ? Math.floor(this.y + 0.5) : Math.floor(this.y - 0.5); - return this; - } - }; - return that; - }; - - /** - * Computes an integral image of a given grayscale image. - * @param imageDataContainer {ImageDataContainer} the image to be integrated - */ - CVUtils.computeIntegralImage2 = function(imageWrapper, integralWrapper) { - var imageData = imageWrapper.data; - var width = imageWrapper.size.x; - var height = imageWrapper.size.y; - var integralImageData = integralWrapper.data; - var sum = 0, posA = 0, posB = 0, posC = 0, posD = 0, x, y; - - // sum up first column - posB = width; - sum = 0; - for ( y = 1; y < height; y++) { - sum += imageData[posA]; - integralImageData[posB] += sum; - posA += width; - posB += width; +import Cluster2 from './cluster'; +import ArrayHelper from './array_helper'; +import {vec2, vec3} from 'gl-matrix'; + +var CVUtils = {}; + +/** + * @param x x-coordinate + * @param y y-coordinate + * @return ImageReference {x,y} Coordinate + */ +CVUtils.imageRef = function(x, y) { + var that = { + x : x, + y : y, + toVec2 : function() { + return vec2.clone([this.x, this.y]); + }, + toVec3 : function() { + return vec3.clone([this.x, this.y, 1]); + }, + round : function() { + this.x = this.x > 0.0 ? Math.floor(this.x + 0.5) : Math.floor(this.x - 0.5); + this.y = this.y > 0.0 ? Math.floor(this.y + 0.5) : Math.floor(this.y - 0.5); + return this; } - - posA = 0; - posB = 1; - sum = 0; + }; + return that; +}; + +/** + * Computes an integral image of a given grayscale image. + * @param imageDataContainer {ImageDataContainer} the image to be integrated + */ +CVUtils.computeIntegralImage2 = function(imageWrapper, integralWrapper) { + var imageData = imageWrapper.data; + var width = imageWrapper.size.x; + var height = imageWrapper.size.y; + var integralImageData = integralWrapper.data; + var sum = 0, posA = 0, posB = 0, posC = 0, posD = 0, x, y; + + // sum up first column + posB = width; + sum = 0; + for ( y = 1; y < height; y++) { + sum += imageData[posA]; + integralImageData[posB] += sum; + posA += width; + posB += width; + } + + posA = 0; + posB = 1; + sum = 0; + for ( x = 1; x < width; x++) { + sum += imageData[posA]; + integralImageData[posB] += sum; + posA++; + posB++; + } + + for ( y = 1; y < height; y++) { + posA = y * width + 1; + posB = (y - 1) * width + 1; + posC = y * width; + posD = (y - 1) * width; for ( x = 1; x < width; x++) { - sum += imageData[posA]; - integralImageData[posB] += sum; + integralImageData[posA] += imageData[posA] + integralImageData[posB] + integralImageData[posC] - integralImageData[posD]; posA++; posB++; + posC++; + posD++; + } + } +}; + +CVUtils.computeIntegralImage = function(imageWrapper, integralWrapper) { + var imageData = imageWrapper.data; + var width = imageWrapper.size.x; + var height = imageWrapper.size.y; + var integralImageData = integralWrapper.data; + var sum = 0; + + // sum up first row + for (var i = 0; i < width; i++) { + sum += imageData[i]; + integralImageData[i] = sum; + } + + for (var v = 1; v < height; v++) { + sum = 0; + for (var u = 0; u < width; u++) { + sum += imageData[v * width + u]; + integralImageData[((v) * width) + u] = sum + integralImageData[(v - 1) * width + u]; + } + } +}; + +CVUtils.thresholdImage = function(imageWrapper, threshold, targetWrapper) { + if (!targetWrapper) { + targetWrapper = imageWrapper; + } + var imageData = imageWrapper.data, length = imageData.length, targetData = targetWrapper.data; + + while (length--) { + targetData[length] = imageData[length] < threshold ? 1 : 0; + } +}; + +CVUtils.computeHistogram = function(imageWrapper, bitsPerPixel) { + if (!bitsPerPixel) { + bitsPerPixel = 8; + } + var imageData = imageWrapper.data, + length = imageData.length, + bitShift = 8 - bitsPerPixel, + bucketCnt = 1 << bitsPerPixel, + hist = new Int32Array(bucketCnt); + + while (length--) { + hist[imageData[length] >> bitShift]++; + } + return hist; +}; + +CVUtils.sharpenLine = function(line) { + var i, + length = line.length, + left = line[0], + center = line[1], + right; + + for (i = 1; i < length - 1; i++) { + right = line[i + 1]; + // -1 4 -1 kernel + line[i-1] = (((center * 2) - left - right)) & 255; + left = center; + center = right; + } + return line; +}; + +CVUtils.determineOtsuThreshold = function(imageWrapper, bitsPerPixel) { + if (!bitsPerPixel) { + bitsPerPixel = 8; + } + var hist, + threshold, + bitShift = 8 - bitsPerPixel; + + function px(init, end) { + var sum = 0, i; + for ( i = init; i <= end; i++) { + sum += hist[i]; } + return sum; + } - for ( y = 1; y < height; y++) { - posA = y * width + 1; - posB = (y - 1) * width + 1; - posC = y * width; - posD = (y - 1) * width; - for ( x = 1; x < width; x++) { - integralImageData[posA] += imageData[posA] + integralImageData[posB] + integralImageData[posC] - integralImageData[posD]; - posA++; - posB++; - posC++; - posD++; - } - } - }; - - CVUtils.computeIntegralImage = function(imageWrapper, integralWrapper) { - var imageData = imageWrapper.data; - var width = imageWrapper.size.x; - var height = imageWrapper.size.y; - var integralImageData = integralWrapper.data; - var sum = 0; - - // sum up first row - for (var i = 0; i < width; i++) { - sum += imageData[i]; - integralImageData[i] = sum; - } - - for (var v = 1; v < height; v++) { - sum = 0; - for (var u = 0; u < width; u++) { - sum += imageData[v * width + u]; - integralImageData[((v) * width) + u] = sum + integralImageData[(v - 1) * width + u]; - } - } - }; - - CVUtils.thresholdImage = function(imageWrapper, threshold, targetWrapper) { - if (!targetWrapper) { - targetWrapper = imageWrapper; - } - var imageData = imageWrapper.data, length = imageData.length, targetData = targetWrapper.data; - - while (length--) { - targetData[length] = imageData[length] < threshold ? 1 : 0; - } - }; - - CVUtils.computeHistogram = function(imageWrapper, bitsPerPixel) { - if (!bitsPerPixel) { - bitsPerPixel = 8; - } - var imageData = imageWrapper.data, - length = imageData.length, - bitShift = 8 - bitsPerPixel, - bucketCnt = 1 << bitsPerPixel, - hist = new Int32Array(bucketCnt); - - while (length--) { - hist[imageData[length] >> bitShift]++; - } - return hist; - }; + function mx(init, end) { + var i, sum = 0; - CVUtils.sharpenLine = function(line) { - var i, - length = line.length, - left = line[0], - center = line[1], - right; - - for (i = 1; i < length - 1; i++) { - right = line[i + 1]; - // -1 4 -1 kernel - line[i-1] = (((center * 2) - left - right)) & 255; - left = center; - center = right; + for ( i = init; i <= end; i++) { + sum += i * hist[i]; } - return line; - }; - CVUtils.determineOtsuThreshold = function(imageWrapper, bitsPerPixel) { - if (!bitsPerPixel) { - bitsPerPixel = 8; - } - var hist, - threshold, - bitShift = 8 - bitsPerPixel; - - function px(init, end) { - var sum = 0, i; - for ( i = init; i <= end; i++) { - sum += hist[i]; + return sum; + } + + function determineThreshold() { + var vet = [0], p1, p2, p12, k, m1, m2, m12, + max = (1 << bitsPerPixel) - 1; + + hist = CVUtils.computeHistogram(imageWrapper, bitsPerPixel); + for ( k = 1; k < max; k++) { + p1 = px(0, k); + p2 = px(k + 1, max); + p12 = p1 * p2; + if (p12 === 0) { + p12 = 1; } - return sum; - } - - function mx(init, end) { - var i, sum = 0; - - for ( i = init; i <= end; i++) { - sum += i * hist[i]; + m1 = mx(0, k) * p2; + m2 = mx(k + 1, max) * p1; + m12 = m1 - m2; + vet[k] = m12 * m12 / p12; + } + return ArrayHelper.maxIndex(vet); + } + + threshold = determineThreshold(); + return threshold << bitShift; +}; + +CVUtils.otsuThreshold = function(imageWrapper, targetWrapper) { + var threshold = CVUtils.determineOtsuThreshold(imageWrapper); + + CVUtils.thresholdImage(imageWrapper, threshold, targetWrapper); + return threshold; +}; + +// local thresholding +CVUtils.computeBinaryImage = function(imageWrapper, integralWrapper, targetWrapper) { + CVUtils.computeIntegralImage(imageWrapper, integralWrapper); + + if (!targetWrapper) { + targetWrapper = imageWrapper; + } + var imageData = imageWrapper.data; + var targetData = targetWrapper.data; + var width = imageWrapper.size.x; + var height = imageWrapper.size.y; + var integralImageData = integralWrapper.data; + var sum = 0, v, u, kernel = 3, A, B, C, D, avg, size = (kernel * 2 + 1) * (kernel * 2 + 1); + + // clear out top & bottom-border + for ( v = 0; v <= kernel; v++) { + for ( u = 0; u < width; u++) { + targetData[((v) * width) + u] = 0; + targetData[(((height - 1) - v) * width) + u] = 0; + } + } + + // clear out left & right border + for ( v = kernel; v < height - kernel; v++) { + for ( u = 0; u <= kernel; u++) { + targetData[((v) * width) + u] = 0; + targetData[((v) * width) + (width - 1 - u)] = 0; + } + } + + for ( v = kernel + 1; v < height - kernel - 1; v++) { + for ( u = kernel + 1; u < width - kernel; u++) { + A = integralImageData[(v - kernel - 1) * width + (u - kernel - 1)]; + B = integralImageData[(v - kernel - 1) * width + (u + kernel)]; + C = integralImageData[(v + kernel) * width + (u - kernel - 1)]; + D = integralImageData[(v + kernel) * width + (u + kernel)]; + sum = D - C - B + A; + avg = sum / (size); + targetData[v * width + u] = imageData[v * width + u] > (avg + 5) ? 0 : 1; + } + } +}; + +CVUtils.cluster = function(points, threshold, property) { + var i, k, cluster, point, clusters = []; + + if (!property) { + property = "rad"; + } + + function addToCluster(point) { + var found = false; + for ( k = 0; k < clusters.length; k++) { + cluster = clusters[k]; + if (cluster.fits(point)) { + cluster.add(point); + found = true; } - - return sum; } + return found; + } - function determineThreshold() { - var vet = [0], p1, p2, p12, k, m1, m2, m12, - max = (1 << bitsPerPixel) - 1; - - hist = CVUtils.computeHistogram(imageWrapper, bitsPerPixel); - for ( k = 1; k < max; k++) { - p1 = px(0, k); - p2 = px(k + 1, max); - p12 = p1 * p2; - if (p12 === 0) { - p12 = 1; - } - m1 = mx(0, k) * p2; - m2 = mx(k + 1, max) * p1; - m12 = m1 - m2; - vet[k] = m12 * m12 / p12; - } - return ArrayHelper.maxIndex(vet); + // iterate over each cloud + for ( i = 0; i < points.length; i++) { + point = Cluster2.createPoint(points[i], i, property); + if (!addToCluster(point)) { + clusters.push(Cluster2.create(point, threshold)); } + } - threshold = determineThreshold(); - return threshold << bitShift; - }; + return clusters; - CVUtils.otsuThreshold = function(imageWrapper, targetWrapper) { - var threshold = CVUtils.determineOtsuThreshold(imageWrapper); +}; - CVUtils.thresholdImage(imageWrapper, threshold, targetWrapper); - return threshold; - }; +CVUtils.Tracer = { + trace : function(points, vec) { + var iteration, maxIterations = 10, top = [], result = [], centerPos = 0, currentPos = 0; - // local thresholding - CVUtils.computeBinaryImage = function(imageWrapper, integralWrapper, targetWrapper) { - CVUtils.computeIntegralImage(imageWrapper, integralWrapper); + function trace(idx, forward) { + var from, to, toIdx, predictedPos, thresholdX = 1, thresholdY = Math.abs(vec[1] / 10), found = false; - if (!targetWrapper) { - targetWrapper = imageWrapper; - } - var imageData = imageWrapper.data; - var targetData = targetWrapper.data; - var width = imageWrapper.size.x; - var height = imageWrapper.size.y; - var integralImageData = integralWrapper.data; - var sum = 0, v, u, kernel = 3, A, B, C, D, avg, size = (kernel * 2 + 1) * (kernel * 2 + 1); - - // clear out top & bottom-border - for ( v = 0; v <= kernel; v++) { - for ( u = 0; u < width; u++) { - targetData[((v) * width) + u] = 0; - targetData[(((height - 1) - v) * width) + u] = 0; + function match(pos, predicted) { + if (pos.x > (predicted.x - thresholdX) && pos.x < (predicted.x + thresholdX) && pos.y > (predicted.y - thresholdY) && pos.y < (predicted.y + thresholdY)) { + return true; + } else { + return false; + } } - } - // clear out left & right border - for ( v = kernel; v < height - kernel; v++) { - for ( u = 0; u <= kernel; u++) { - targetData[((v) * width) + u] = 0; - targetData[((v) * width) + (width - 1 - u)] = 0; - } - } + // check if the next index is within the vec specifications + // if not, check as long as the threshold is met - for ( v = kernel + 1; v < height - kernel - 1; v++) { - for ( u = kernel + 1; u < width - kernel; u++) { - A = integralImageData[(v - kernel - 1) * width + (u - kernel - 1)]; - B = integralImageData[(v - kernel - 1) * width + (u + kernel)]; - C = integralImageData[(v + kernel) * width + (u - kernel - 1)]; - D = integralImageData[(v + kernel) * width + (u + kernel)]; - sum = D - C - B + A; - avg = sum / (size); - targetData[v * width + u] = imageData[v * width + u] > (avg + 5) ? 0 : 1; + from = points[idx]; + if (forward) { + predictedPos = { + x : from.x + vec[0], + y : from.y + vec[1] + }; + } else { + predictedPos = { + x : from.x - vec[0], + y : from.y - vec[1] + }; } - } - }; - - CVUtils.cluster = function(points, threshold, property) { - var i, k, cluster, point, clusters = []; - if (!property) { - property = "rad"; - } - - function addToCluster(point) { - var found = false; - for ( k = 0; k < clusters.length; k++) { - cluster = clusters[k]; - if (cluster.fits(point)) { - cluster.add(point); - found = true; - } + toIdx = forward ? idx + 1 : idx - 1; + to = points[toIdx]; + while (to && ( found = match(to, predictedPos)) !== true && (Math.abs(to.y - from.y) < vec[1])) { + toIdx = forward ? toIdx + 1 : toIdx - 1; + to = points[toIdx]; } - return found; - } - // iterate over each cloud - for ( i = 0; i < points.length; i++) { - point = Cluster2.createPoint(points[i], i, property); - if (!addToCluster(point)) { - clusters.push(Cluster2.create(point, threshold)); - } + return found ? toIdx : null; } - return clusters; - - }; - - CVUtils.Tracer = { - trace : function(points, vec) { - var iteration, maxIterations = 10, top = [], result = [], centerPos = 0, currentPos = 0; - - function trace(idx, forward) { - var from, to, toIdx, predictedPos, thresholdX = 1, thresholdY = Math.abs(vec[1] / 10), found = false; + for ( iteration = 0; iteration < maxIterations; iteration++) { + // randomly select point to start with + centerPos = Math.floor(Math.random() * points.length); - function match(pos, predicted) { - if (pos.x > (predicted.x - thresholdX) && pos.x < (predicted.x + thresholdX) && pos.y > (predicted.y - thresholdY) && pos.y < (predicted.y + thresholdY)) { - return true; - } else { - return false; - } - } - - // check if the next index is within the vec specifications - // if not, check as long as the threshold is met - - from = points[idx]; - if (forward) { - predictedPos = { - x : from.x + vec[0], - y : from.y + vec[1] - }; - } else { - predictedPos = { - x : from.x - vec[0], - y : from.y - vec[1] - }; - } - - toIdx = forward ? idx + 1 : idx - 1; - to = points[toIdx]; - while (to && ( found = match(to, predictedPos)) !== true && (Math.abs(to.y - from.y) < vec[1])) { - toIdx = forward ? toIdx + 1 : toIdx - 1; - to = points[toIdx]; - } - - return found ? toIdx : null; + // trace forward + top = []; + currentPos = centerPos; + top.push(points[currentPos]); + while (( currentPos = trace(currentPos, true)) !== null) { + top.push(points[currentPos]); } - - for ( iteration = 0; iteration < maxIterations; iteration++) { - // randomly select point to start with - centerPos = Math.floor(Math.random() * points.length); - - // trace forward - top = []; + if (centerPos > 0) { currentPos = centerPos; - top.push(points[currentPos]); - while (( currentPos = trace(currentPos, true)) !== null) { + while (( currentPos = trace(currentPos, false)) !== null) { top.push(points[currentPos]); } - if (centerPos > 0) { - currentPos = centerPos; - while (( currentPos = trace(currentPos, false)) !== null) { - top.push(points[currentPos]); - } - } - - if (top.length > result.length) { - result = top; - } - } - - return result; - - } - }; - - CVUtils.DILATE = 1; - CVUtils.ERODE = 2; - - CVUtils.dilate = function(inImageWrapper, outImageWrapper) { - var v, u, inImageData = inImageWrapper.data, outImageData = outImageWrapper.data, height = inImageWrapper.size.y, width = inImageWrapper.size.x, sum, yStart1, yStart2, xStart1, xStart2; - - for ( v = 1; v < height - 1; v++) { - for ( u = 1; u < width - 1; u++) { - yStart1 = v - 1; - yStart2 = v + 1; - xStart1 = u - 1; - xStart2 = u + 1; - sum = inImageData[yStart1 * width + xStart1]/* + inImageData[yStart1*width+u] */ + inImageData[yStart1 * width + xStart2] + - /* inImageData[v*width+xStart1] + */ - inImageData[v * width + u] + /* inImageData[v*width+xStart2] +*/ - inImageData[yStart2 * width + xStart1]/* + inImageData[yStart2*width+u]*/ + inImageData[yStart2 * width + xStart2]; - outImageData[v * width + u] = sum > 0 ? 1 : 0; } - } - }; - CVUtils.erode = function(inImageWrapper, outImageWrapper) { - var v, u, inImageData = inImageWrapper.data, outImageData = outImageWrapper.data, height = inImageWrapper.size.y, width = inImageWrapper.size.x, sum, yStart1, yStart2, xStart1, xStart2; - - for ( v = 1; v < height - 1; v++) { - for ( u = 1; u < width - 1; u++) { - yStart1 = v - 1; - yStart2 = v + 1; - xStart1 = u - 1; - xStart2 = u + 1; - sum = inImageData[yStart1 * width + xStart1]/* + inImageData[yStart1*width+u] */ + inImageData[yStart1 * width + xStart2] + - /* inImageData[v*width+xStart1] + */ - inImageData[v * width + u] + /* inImageData[v*width+xStart2] +*/ - inImageData[yStart2 * width + xStart1]/* + inImageData[yStart2*width+u]*/ + inImageData[yStart2 * width + xStart2]; - outImageData[v * width + u] = sum === 5 ? 1 : 0; + if (top.length > result.length) { + result = top; } } - }; - - CVUtils.subtract = function(aImageWrapper, bImageWrapper, resultImageWrapper) { - if (!resultImageWrapper) { - resultImageWrapper = aImageWrapper; - } - var length = aImageWrapper.data.length, aImageData = aImageWrapper.data, bImageData = bImageWrapper.data, cImageData = resultImageWrapper.data; - - while (length--) { - cImageData[length] = aImageData[length] - bImageData[length]; - } - }; - - CVUtils.bitwiseOr = function(aImageWrapper, bImageWrapper, resultImageWrapper) { - if (!resultImageWrapper) { - resultImageWrapper = aImageWrapper; - } - var length = aImageWrapper.data.length, aImageData = aImageWrapper.data, bImageData = bImageWrapper.data, cImageData = resultImageWrapper.data; - - while (length--) { - cImageData[length] = aImageData[length] || bImageData[length]; - } - }; - - CVUtils.countNonZero = function(imageWrapper) { - var length = imageWrapper.data.length, data = imageWrapper.data, sum = 0; - - while (length--) { - sum += data[length]; - } - return sum; - }; - - CVUtils.topGeneric = function(list, top, scoreFunc) { - var i, minIdx = 0, min = 0, queue = [], score, hit, pos; - for ( i = 0; i < top; i++) { - queue[i] = { - score : 0, - item : null - }; - } + return result; - for ( i = 0; i < list.length; i++) { - score = scoreFunc.apply(this, [list[i]]); - if (score > min) { - hit = queue[minIdx]; - hit.score = score; - hit.item = list[i]; - min = Number.MAX_VALUE; - for ( pos = 0; pos < top; pos++) { - if (queue[pos].score < min) { - min = queue[pos].score; - minIdx = pos; - } + } +}; + +CVUtils.DILATE = 1; +CVUtils.ERODE = 2; + +CVUtils.dilate = function(inImageWrapper, outImageWrapper) { + var v, u, inImageData = inImageWrapper.data, outImageData = outImageWrapper.data, height = inImageWrapper.size.y, width = inImageWrapper.size.x, sum, yStart1, yStart2, xStart1, xStart2; + + for ( v = 1; v < height - 1; v++) { + for ( u = 1; u < width - 1; u++) { + yStart1 = v - 1; + yStart2 = v + 1; + xStart1 = u - 1; + xStart2 = u + 1; + sum = inImageData[yStart1 * width + xStart1]/* + inImageData[yStart1*width+u] */ + inImageData[yStart1 * width + xStart2] + + /* inImageData[v*width+xStart1] + */ + inImageData[v * width + u] + /* inImageData[v*width+xStart2] +*/ + inImageData[yStart2 * width + xStart1]/* + inImageData[yStart2*width+u]*/ + inImageData[yStart2 * width + xStart2]; + outImageData[v * width + u] = sum > 0 ? 1 : 0; + } + } +}; + +CVUtils.erode = function(inImageWrapper, outImageWrapper) { + var v, u, inImageData = inImageWrapper.data, outImageData = outImageWrapper.data, height = inImageWrapper.size.y, width = inImageWrapper.size.x, sum, yStart1, yStart2, xStart1, xStart2; + + for ( v = 1; v < height - 1; v++) { + for ( u = 1; u < width - 1; u++) { + yStart1 = v - 1; + yStart2 = v + 1; + xStart1 = u - 1; + xStart2 = u + 1; + sum = inImageData[yStart1 * width + xStart1]/* + inImageData[yStart1*width+u] */ + inImageData[yStart1 * width + xStart2] + + /* inImageData[v*width+xStart1] + */ + inImageData[v * width + u] + /* inImageData[v*width+xStart2] +*/ + inImageData[yStart2 * width + xStart1]/* + inImageData[yStart2*width+u]*/ + inImageData[yStart2 * width + xStart2]; + outImageData[v * width + u] = sum === 5 ? 1 : 0; + } + } +}; + +CVUtils.subtract = function(aImageWrapper, bImageWrapper, resultImageWrapper) { + if (!resultImageWrapper) { + resultImageWrapper = aImageWrapper; + } + var length = aImageWrapper.data.length, aImageData = aImageWrapper.data, bImageData = bImageWrapper.data, cImageData = resultImageWrapper.data; + + while (length--) { + cImageData[length] = aImageData[length] - bImageData[length]; + } +}; + +CVUtils.bitwiseOr = function(aImageWrapper, bImageWrapper, resultImageWrapper) { + if (!resultImageWrapper) { + resultImageWrapper = aImageWrapper; + } + var length = aImageWrapper.data.length, aImageData = aImageWrapper.data, bImageData = bImageWrapper.data, cImageData = resultImageWrapper.data; + + while (length--) { + cImageData[length] = aImageData[length] || bImageData[length]; + } +}; + +CVUtils.countNonZero = function(imageWrapper) { + var length = imageWrapper.data.length, data = imageWrapper.data, sum = 0; + + while (length--) { + sum += data[length]; + } + return sum; +}; + +CVUtils.topGeneric = function(list, top, scoreFunc) { + var i, minIdx = 0, min = 0, queue = [], score, hit, pos; + + for ( i = 0; i < top; i++) { + queue[i] = { + score : 0, + item : null + }; + } + + for ( i = 0; i < list.length; i++) { + score = scoreFunc.apply(this, [list[i]]); + if (score > min) { + hit = queue[minIdx]; + hit.score = score; + hit.item = list[i]; + min = Number.MAX_VALUE; + for ( pos = 0; pos < top; pos++) { + if (queue[pos].score < min) { + min = queue[pos].score; + minIdx = pos; } } } - - return queue; - }; - - CVUtils.grayArrayFromImage = function(htmlImage, offsetX, ctx, array) { - ctx.drawImage(htmlImage, offsetX, 0, htmlImage.width, htmlImage.height); - var ctxData = ctx.getImageData(offsetX, 0, htmlImage.width, htmlImage.height).data; - CVUtils.computeGray(ctxData, array); - }; - - CVUtils.grayArrayFromContext = function(ctx, size, offset, array) { - var ctxData = ctx.getImageData(offset.x, offset.y, size.x, size.y).data; - CVUtils.computeGray(ctxData, array); + } + + return queue; +}; + +CVUtils.grayArrayFromImage = function(htmlImage, offsetX, ctx, array) { + ctx.drawImage(htmlImage, offsetX, 0, htmlImage.width, htmlImage.height); + var ctxData = ctx.getImageData(offsetX, 0, htmlImage.width, htmlImage.height).data; + CVUtils.computeGray(ctxData, array); +}; + +CVUtils.grayArrayFromContext = function(ctx, size, offset, array) { + var ctxData = ctx.getImageData(offset.x, offset.y, size.x, size.y).data; + CVUtils.computeGray(ctxData, array); +}; + +CVUtils.grayAndHalfSampleFromCanvasData = function(canvasData, size, outArray) { + var topRowIdx = 0; + var bottomRowIdx = size.x; + var endIdx = Math.floor(canvasData.length / 4); + var outWidth = size.x / 2; + var outImgIdx = 0; + var inWidth = size.x; + var i; + + while (bottomRowIdx < endIdx) { + for ( i = 0; i < outWidth; i++) { + outArray[outImgIdx] = Math.floor(((0.299 * canvasData[topRowIdx * 4 + 0] + 0.587 * canvasData[topRowIdx * 4 + 1] + 0.114 * canvasData[topRowIdx * 4 + 2]) + (0.299 * canvasData[(topRowIdx + 1) * 4 + 0] + 0.587 * canvasData[(topRowIdx + 1) * 4 + 1] + 0.114 * canvasData[(topRowIdx + 1) * 4 + 2]) + (0.299 * canvasData[(bottomRowIdx) * 4 + 0] + 0.587 * canvasData[(bottomRowIdx) * 4 + 1] + 0.114 * canvasData[(bottomRowIdx) * 4 + 2]) + (0.299 * canvasData[(bottomRowIdx + 1) * 4 + 0] + 0.587 * canvasData[(bottomRowIdx + 1) * 4 + 1] + 0.114 * canvasData[(bottomRowIdx + 1) * 4 + 2])) / 4); + outImgIdx++; + topRowIdx = topRowIdx + 2; + bottomRowIdx = bottomRowIdx + 2; + } + topRowIdx = topRowIdx + inWidth; + bottomRowIdx = bottomRowIdx + inWidth; + } + +}; + +CVUtils.computeGray = function(imageData, outArray, config) { + var l = (imageData.length / 4) | 0, + i, + singleChannel = config && config.singleChannel === true; + + if (singleChannel) { + for (i = 0; i < l; i++) { + outArray[i] = imageData[i * 4 + 0]; + } + } else { + for (i = 0; i < l; i++) { + outArray[i] = Math.floor(0.299 * imageData[i * 4 + 0] + 0.587 * imageData[i * 4 + 1] + 0.114 * imageData[i * 4 + 2]); + } + } +}; + +CVUtils.loadImageArray = function(src, callback, canvas) { + if (!canvas) + canvas = document.createElement('canvas'); + var img = new Image(); + img.callback = callback; + img.onload = function() { + canvas.width = this.width; + canvas.height = this.height; + var ctx = canvas.getContext('2d'); + ctx.drawImage(this, 0, 0); + var array = new Uint8Array(this.width * this.height); + ctx.drawImage(this, 0, 0); + var data = ctx.getImageData(0, 0, this.width, this.height).data; + CVUtils.computeGray(data, array); + this.callback(array, { + x : this.width, + y : this.height + }, this); }; - - CVUtils.grayAndHalfSampleFromCanvasData = function(canvasData, size, outArray) { - var topRowIdx = 0; - var bottomRowIdx = size.x; - var endIdx = Math.floor(canvasData.length / 4); - var outWidth = size.x / 2; - var outImgIdx = 0; - var inWidth = size.x; - var i; - - while (bottomRowIdx < endIdx) { - for ( i = 0; i < outWidth; i++) { - outArray[outImgIdx] = Math.floor(((0.299 * canvasData[topRowIdx * 4 + 0] + 0.587 * canvasData[topRowIdx * 4 + 1] + 0.114 * canvasData[topRowIdx * 4 + 2]) + (0.299 * canvasData[(topRowIdx + 1) * 4 + 0] + 0.587 * canvasData[(topRowIdx + 1) * 4 + 1] + 0.114 * canvasData[(topRowIdx + 1) * 4 + 2]) + (0.299 * canvasData[(bottomRowIdx) * 4 + 0] + 0.587 * canvasData[(bottomRowIdx) * 4 + 1] + 0.114 * canvasData[(bottomRowIdx) * 4 + 2]) + (0.299 * canvasData[(bottomRowIdx + 1) * 4 + 0] + 0.587 * canvasData[(bottomRowIdx + 1) * 4 + 1] + 0.114 * canvasData[(bottomRowIdx + 1) * 4 + 2])) / 4); - outImgIdx++; - topRowIdx = topRowIdx + 2; - bottomRowIdx = bottomRowIdx + 2; + img.src = src; +}; + +/** + * @param inImg {ImageWrapper} input image to be sampled + * @param outImg {ImageWrapper} to be stored in + */ +CVUtils.halfSample = function(inImgWrapper, outImgWrapper) { + var inImg = inImgWrapper.data; + var inWidth = inImgWrapper.size.x; + var outImg = outImgWrapper.data; + var topRowIdx = 0; + var bottomRowIdx = inWidth; + var endIdx = inImg.length; + var outWidth = inWidth / 2; + var outImgIdx = 0; + while (bottomRowIdx < endIdx) { + for (var i = 0; i < outWidth; i++) { + outImg[outImgIdx] = Math.floor((inImg[topRowIdx] + inImg[topRowIdx + 1] + inImg[bottomRowIdx] + inImg[bottomRowIdx + 1]) / 4); + outImgIdx++; + topRowIdx = topRowIdx + 2; + bottomRowIdx = bottomRowIdx + 2; + } + topRowIdx = topRowIdx + inWidth; + bottomRowIdx = bottomRowIdx + inWidth; + } +}; + +CVUtils.hsv2rgb = function(hsv, rgb) { + var h = hsv[0], s = hsv[1], v = hsv[2], c = v * s, x = c * (1 - Math.abs((h / 60) % 2 - 1)), m = v - c, r = 0, g = 0, b = 0; + rgb = rgb || [0, 0, 0]; + + if (h < 60) { + r = c; + g = x; + } else if (h < 120) { + r = x; + g = c; + } else if (h < 180) { + g = c; + b = x; + } else if (h < 240) { + g = x; + b = c; + } else if (h < 300) { + r = x; + b = c; + } else if (h < 360) { + r = c; + b = x; + } + rgb[0] = ((r + m) * 255) | 0; + rgb[1] = ((g + m) * 255) | 0; + rgb[2] = ((b + m) * 255) | 0; + return rgb; +}; + +CVUtils._computeDivisors = function(n) { + var largeDivisors = [], + divisors = [], + i; + + for (i = 1; i < Math.sqrt(n) + 1; i++) { + if (n % i === 0) { + divisors.push(i); + if (i !== n/i) { + largeDivisors.unshift(Math.floor(n/i)); } - topRowIdx = topRowIdx + inWidth; - bottomRowIdx = bottomRowIdx + inWidth; } - - }; - - CVUtils.computeGray = function(imageData, outArray, config) { - var l = (imageData.length / 4) | 0, - i, - singleChannel = config && config.singleChannel === true; - - if (singleChannel) { - for (i = 0; i < l; i++) { - outArray[i] = imageData[i * 4 + 0]; - } + } + return divisors.concat(largeDivisors); +}; + +CVUtils._computeIntersection = function(arr1, arr2) { + var i = 0, + j = 0, + result = []; + + while (i < arr1.length && j < arr2.length) { + if (arr1[i] === arr2[j]) { + result.push(arr1[i]); + i++; + j++; + } else if (arr1[i] > arr2[j]) { + j++; } else { - for (i = 0; i < l; i++) { - outArray[i] = Math.floor(0.299 * imageData[i * 4 + 0] + 0.587 * imageData[i * 4 + 1] + 0.114 * imageData[i * 4 + 2]); - } - } - }; - - CVUtils.loadImageArray = function(src, callback, canvas) { - if (!canvas) - canvas = document.createElement('canvas'); - var img = new Image(); - img.callback = callback; - img.onload = function() { - canvas.width = this.width; - canvas.height = this.height; - var ctx = canvas.getContext('2d'); - ctx.drawImage(this, 0, 0); - var array = new Uint8Array(this.width * this.height); - ctx.drawImage(this, 0, 0); - var data = ctx.getImageData(0, 0, this.width, this.height).data; - CVUtils.computeGray(data, array); - this.callback(array, { - x : this.width, - y : this.height - }, this); - }; - img.src = src; - }; - - /** - * @param inImg {ImageWrapper} input image to be sampled - * @param outImg {ImageWrapper} to be stored in - */ - CVUtils.halfSample = function(inImgWrapper, outImgWrapper) { - var inImg = inImgWrapper.data; - var inWidth = inImgWrapper.size.x; - var outImg = outImgWrapper.data; - var topRowIdx = 0; - var bottomRowIdx = inWidth; - var endIdx = inImg.length; - var outWidth = inWidth / 2; - var outImgIdx = 0; - while (bottomRowIdx < endIdx) { - for (var i = 0; i < outWidth; i++) { - outImg[outImgIdx] = Math.floor((inImg[topRowIdx] + inImg[topRowIdx + 1] + inImg[bottomRowIdx] + inImg[bottomRowIdx + 1]) / 4); - outImgIdx++; - topRowIdx = topRowIdx + 2; - bottomRowIdx = bottomRowIdx + 2; - } - topRowIdx = topRowIdx + inWidth; - bottomRowIdx = bottomRowIdx + inWidth; - } - }; - - CVUtils.hsv2rgb = function(hsv, rgb) { - var h = hsv[0], s = hsv[1], v = hsv[2], c = v * s, x = c * (1 - Math.abs((h / 60) % 2 - 1)), m = v - c, r = 0, g = 0, b = 0; - rgb = rgb || [0, 0, 0]; - - if (h < 60) { - r = c; - g = x; - } else if (h < 120) { - r = x; - g = c; - } else if (h < 180) { - g = c; - b = x; - } else if (h < 240) { - g = x; - b = c; - } else if (h < 300) { - r = x; - b = c; - } else if (h < 360) { - r = c; - b = x; - } - rgb[0] = ((r + m) * 255) | 0; - rgb[1] = ((g + m) * 255) | 0; - rgb[2] = ((b + m) * 255) | 0; - return rgb; - }; + i++; + } + } + return result; +}; + +CVUtils.calculatePatchSize = function(patchSize, imgSize) { + var divisorsX = this._computeDivisors(imgSize.x), + divisorsY = this._computeDivisors(imgSize.y), + wideSide = Math.max(imgSize.x, imgSize.y), + common = this._computeIntersection(divisorsX, divisorsY), + nrOfPatchesList = [8, 10, 15, 20, 32, 60, 80], + nrOfPatchesMap = { + "x-small": 5, + "small": 4, + "medium": 3, + "large": 2, + "x-large": 1 + }, + nrOfPatchesIdx = nrOfPatchesMap[patchSize] || nrOfPatchesMap.medium, + nrOfPatches = nrOfPatchesList[nrOfPatchesIdx], + desiredPatchSize = Math.floor(wideSide/nrOfPatches), + optimalPatchSize; - CVUtils._computeDivisors = function(n) { - var largeDivisors = [], - divisors = [], - i; + function findPatchSizeForDivisors(divisors) { + var i = 0, + found = divisors[Math.floor(divisors.length/2)]; - for (i = 1; i < Math.sqrt(n) + 1; i++) { - if (n % i === 0) { - divisors.push(i); - if (i !== n/i) { - largeDivisors.unshift(Math.floor(n/i)); - } - } + while(i < (divisors.length - 1) && divisors[i] < desiredPatchSize) { + i++; } - return divisors.concat(largeDivisors); - }; - - CVUtils._computeIntersection = function(arr1, arr2) { - var i = 0, - j = 0, - result = []; - - while (i < arr1.length && j < arr2.length) { - if (arr1[i] === arr2[j]) { - result.push(arr1[i]); - i++; - j++; - } else if (arr1[i] > arr2[j]) { - j++; + if (i > 0) { + if (Math.abs(divisors[i] - desiredPatchSize) > Math.abs(divisors[i-1] - desiredPatchSize)) { + found = divisors[i-1]; } else { - i++; + found = divisors[i]; } } - return result; - }; - - CVUtils.calculatePatchSize = function(patchSize, imgSize) { - var divisorsX = this._computeDivisors(imgSize.x), - divisorsY = this._computeDivisors(imgSize.y), - wideSide = Math.max(imgSize.x, imgSize.y), - common = this._computeIntersection(divisorsX, divisorsY), - nrOfPatchesList = [8, 10, 15, 20, 32, 60, 80], - nrOfPatchesMap = { - "x-small": 5, - "small": 4, - "medium": 3, - "large": 2, - "x-large": 1 - }, - nrOfPatchesIdx = nrOfPatchesMap[patchSize] || nrOfPatchesMap.medium, - nrOfPatches = nrOfPatchesList[nrOfPatchesIdx], - desiredPatchSize = Math.floor(wideSide/nrOfPatches), - optimalPatchSize; - - function findPatchSizeForDivisors(divisors) { - var i = 0, - found = divisors[Math.floor(divisors.length/2)]; - - while(i < (divisors.length - 1) && divisors[i] < desiredPatchSize) { - i++; - } - if (i > 0) { - if (Math.abs(divisors[i] - desiredPatchSize) > Math.abs(divisors[i-1] - desiredPatchSize)) { - found = divisors[i-1]; - } else { - found = divisors[i]; - } - } - if (desiredPatchSize / found < nrOfPatchesList[nrOfPatchesIdx+1] / nrOfPatchesList[nrOfPatchesIdx] && - desiredPatchSize / found > nrOfPatchesList[nrOfPatchesIdx-1]/nrOfPatchesList[nrOfPatchesIdx] ) { - return {x: found, y: found}; - } - return null; + if (desiredPatchSize / found < nrOfPatchesList[nrOfPatchesIdx+1] / nrOfPatchesList[nrOfPatchesIdx] && + desiredPatchSize / found > nrOfPatchesList[nrOfPatchesIdx-1]/nrOfPatchesList[nrOfPatchesIdx] ) { + return {x: found, y: found}; } + return null; + } - optimalPatchSize = findPatchSizeForDivisors(common); + optimalPatchSize = findPatchSizeForDivisors(common); + if (!optimalPatchSize) { + optimalPatchSize = findPatchSizeForDivisors(this._computeDivisors(wideSide)); if (!optimalPatchSize) { - optimalPatchSize = findPatchSizeForDivisors(this._computeDivisors(wideSide)); - if (!optimalPatchSize) { - optimalPatchSize = findPatchSizeForDivisors((this._computeDivisors(desiredPatchSize * nrOfPatches))); - } + optimalPatchSize = findPatchSizeForDivisors((this._computeDivisors(desiredPatchSize * nrOfPatches))); } - return optimalPatchSize; - }; + } + return optimalPatchSize; +}; - CVUtils._parseCSSDimensionValues = function(value) { - var dimension = { - value: parseFloat(value), - unit: value.indexOf("%") === value.length-1 ? "%" : "%" - }; +CVUtils._parseCSSDimensionValues = function(value) { + var dimension = { + value: parseFloat(value), + unit: value.indexOf("%") === value.length-1 ? "%" : "%" + }; - return dimension; - }; + return dimension; +}; - CVUtils._dimensionsConverters = { - top: function(dimension, context) { - if (dimension.unit === "%") { - return Math.floor(context.height * (dimension.value / 100)); - } - }, - right: function(dimension, context) { - if (dimension.unit === "%") { - return Math.floor(context.width - (context.width * (dimension.value / 100))); - } - }, - bottom: function(dimension, context) { - if (dimension.unit === "%") { - return Math.floor(context.height - (context.height * (dimension.value / 100))); - } - }, - left: function(dimension, context) { - if (dimension.unit === "%") { - return Math.floor(context.width * (dimension.value / 100)); - } +CVUtils._dimensionsConverters = { + top: function(dimension, context) { + if (dimension.unit === "%") { + return Math.floor(context.height * (dimension.value / 100)); } - }; + }, + right: function(dimension, context) { + if (dimension.unit === "%") { + return Math.floor(context.width - (context.width * (dimension.value / 100))); + } + }, + bottom: function(dimension, context) { + if (dimension.unit === "%") { + return Math.floor(context.height - (context.height * (dimension.value / 100))); + } + }, + left: function(dimension, context) { + if (dimension.unit === "%") { + return Math.floor(context.width * (dimension.value / 100)); + } + } +}; - CVUtils.computeImageArea = function(inputWidth, inputHeight, area) { - var context = {width: inputWidth, height: inputHeight}; +CVUtils.computeImageArea = function(inputWidth, inputHeight, area) { + var context = {width: inputWidth, height: inputHeight}; - var parsedArea = Object.keys(area).reduce(function(result, key) { - var value = area[key], - parsed = CVUtils._parseCSSDimensionValues(value), - calculated = CVUtils._dimensionsConverters[key](parsed, context); + var parsedArea = Object.keys(area).reduce(function(result, key) { + var value = area[key], + parsed = CVUtils._parseCSSDimensionValues(value), + calculated = CVUtils._dimensionsConverters[key](parsed, context); - result[key] = calculated; - return result; - }, {}); + result[key] = calculated; + return result; + }, {}); - return { - sx: parsedArea.left, - sy: parsedArea.top, - sw: parsedArea.right - parsedArea.left, - sh: parsedArea.bottom - parsedArea.top - }; + return { + sx: parsedArea.left, + sy: parsedArea.top, + sw: parsedArea.right - parsedArea.left, + sh: parsedArea.bottom - parsedArea.top }; +}; - return (CVUtils); -}); - +export default CVUtils; diff --git a/src/ean_8_reader.js b/src/ean_8_reader.js index f76642ed..628661a8 100644 --- a/src/ean_8_reader.js +++ b/src/ean_8_reader.js @@ -1,55 +1,45 @@ -/* jshint undef: true, unused: true, browser:true, devel: true */ -/* global define */ - -define( - [ - "./ean_reader" - ], - function(EANReader) { - "use strict"; - - function EAN8Reader() { - EANReader.call(this); +import EANReader from './ean_reader'; + +function EAN8Reader() { + EANReader.call(this); +} + +var properties = { + FORMAT: {value: "ean_8", writeable: false} +}; + +EAN8Reader.prototype = Object.create(EANReader.prototype, properties); +EAN8Reader.prototype.constructor = EAN8Reader; + +EAN8Reader.prototype._decodePayload = function(code, result, decodedCodes) { + var i, + self = this; + + for ( i = 0; i < 4; i++) { + code = self._decodeCode(code.end, self.CODE_G_START); + if (!code) { + return null; } + result.push(code.code); + decodedCodes.push(code); + } - var properties = { - FORMAT: {value: "ean_8", writeable: false} - }; - - EAN8Reader.prototype = Object.create(EANReader.prototype, properties); - EAN8Reader.prototype.constructor = EAN8Reader; - - EAN8Reader.prototype._decodePayload = function(code, result, decodedCodes) { - var i, - self = this; - - for ( i = 0; i < 4; i++) { - code = self._decodeCode(code.end, self.CODE_G_START); - if (!code) { - return null; - } - result.push(code.code); - decodedCodes.push(code); - } - - code = self._findPattern(self.MIDDLE_PATTERN, code.end, true, false); - if (code === null) { - return null; - } - decodedCodes.push(code); - - for ( i = 0; i < 4; i++) { - code = self._decodeCode(code.end, self.CODE_G_START); - if (!code) { - return null; - } - decodedCodes.push(code); - result.push(code.code); - } - - return code; - }; - - return (EAN8Reader); + code = self._findPattern(self.MIDDLE_PATTERN, code.end, true, false); + if (code === null) { + return null; } -); \ No newline at end of file + decodedCodes.push(code); + + for ( i = 0; i < 4; i++) { + code = self._decodeCode(code.end, self.CODE_G_START); + if (!code) { + return null; + } + decodedCodes.push(code); + result.push(code.code); + } + + return code; +}; + +export default EAN8Reader; diff --git a/src/ean_reader.js b/src/ean_reader.js index f207055b..51723865 100644 --- a/src/ean_reader.js +++ b/src/ean_reader.js @@ -1,337 +1,327 @@ -/* jshint undef: true, unused: true, browser:true, devel: true */ -/* global define */ - -define( - [ - "./barcode_reader" - ], - function(BarcodeReader) { - "use strict"; - - function EANReader(opts) { - BarcodeReader.call(this, opts); - } - - var properties = { - CODE_L_START : {value: 0}, - MODULO : {value: 7}, - CODE_G_START : {value: 10}, - START_PATTERN : {value: [1 / 3 * 7, 1 / 3 * 7, 1 / 3 * 7]}, - STOP_PATTERN : {value: [1 / 3 * 7, 1 / 3 * 7, 1 / 3 * 7]}, - MIDDLE_PATTERN : {value: [1 / 5 * 7, 1 / 5 * 7, 1 / 5 * 7, 1 / 5 * 7, 1 / 5 * 7]}, - CODE_PATTERN : {value: [ - [3, 2, 1, 1], - [2, 2, 2, 1], - [2, 1, 2, 2], - [1, 4, 1, 1], - [1, 1, 3, 2], - [1, 2, 3, 1], - [1, 1, 1, 4], - [1, 3, 1, 2], - [1, 2, 1, 3], - [3, 1, 1, 2], - [1, 1, 2, 3], - [1, 2, 2, 2], - [2, 2, 1, 2], - [1, 1, 4, 1], - [2, 3, 1, 1], - [1, 3, 2, 1], - [4, 1, 1, 1], - [2, 1, 3, 1], - [3, 1, 2, 1], - [2, 1, 1, 3] - ]}, - CODE_FREQUENCY : {value: [0, 11, 13, 14, 19, 25, 28, 21, 22, 26]}, - SINGLE_CODE_ERROR: {value: 0.67}, - AVG_CODE_ERROR: {value: 0.27}, - FORMAT: {value: "ean_13", writeable: false} - }; - - EANReader.prototype = Object.create(BarcodeReader.prototype, properties); - EANReader.prototype.constructor = EANReader; - - EANReader.prototype._decodeCode = function(start, coderange) { - var counter = [0, 0, 0, 0], - i, - self = this, - offset = start, - isWhite = !self._row[offset], - counterPos = 0, - bestMatch = { - error : Number.MAX_VALUE, - code : -1, - start : start, - end : start - }, - code, - error, - normalized; - - if (!coderange) { - coderange = self.CODE_PATTERN.length; - } +import BarcodeReader from './barcode_reader'; + +function EANReader(opts) { + BarcodeReader.call(this, opts); +} + +var properties = { + CODE_L_START : {value: 0}, + MODULO : {value: 7}, + CODE_G_START : {value: 10}, + START_PATTERN : {value: [1 / 3 * 7, 1 / 3 * 7, 1 / 3 * 7]}, + STOP_PATTERN : {value: [1 / 3 * 7, 1 / 3 * 7, 1 / 3 * 7]}, + MIDDLE_PATTERN : {value: [1 / 5 * 7, 1 / 5 * 7, 1 / 5 * 7, 1 / 5 * 7, 1 / 5 * 7]}, + CODE_PATTERN : {value: [ + [3, 2, 1, 1], + [2, 2, 2, 1], + [2, 1, 2, 2], + [1, 4, 1, 1], + [1, 1, 3, 2], + [1, 2, 3, 1], + [1, 1, 1, 4], + [1, 3, 1, 2], + [1, 2, 1, 3], + [3, 1, 1, 2], + [1, 1, 2, 3], + [1, 2, 2, 2], + [2, 2, 1, 2], + [1, 1, 4, 1], + [2, 3, 1, 1], + [1, 3, 2, 1], + [4, 1, 1, 1], + [2, 1, 3, 1], + [3, 1, 2, 1], + [2, 1, 1, 3] + ]}, + CODE_FREQUENCY : {value: [0, 11, 13, 14, 19, 25, 28, 21, 22, 26]}, + SINGLE_CODE_ERROR: {value: 0.67}, + AVG_CODE_ERROR: {value: 0.27}, + FORMAT: {value: "ean_13", writeable: false} +}; + +EANReader.prototype = Object.create(BarcodeReader.prototype, properties); +EANReader.prototype.constructor = EANReader; + +EANReader.prototype._decodeCode = function(start, coderange) { + var counter = [0, 0, 0, 0], + i, + self = this, + offset = start, + isWhite = !self._row[offset], + counterPos = 0, + bestMatch = { + error : Number.MAX_VALUE, + code : -1, + start : start, + end : start + }, + code, + error, + normalized; + + if (!coderange) { + coderange = self.CODE_PATTERN.length; + } - for ( i = offset; i < self._row.length; i++) { - if (self._row[i] ^ isWhite) { - counter[counterPos]++; - } else { - if (counterPos === counter.length - 1) { - normalized = self._normalize(counter); - if (normalized) { - for (code = 0; code < coderange; code++) { - error = self._matchPattern(normalized, self.CODE_PATTERN[code]); - if (error < bestMatch.error) { - bestMatch.code = code; - bestMatch.error = error; - } - } - bestMatch.end = i; - if (bestMatch.error > self.AVG_CODE_ERROR) { - return null; - } - return bestMatch; + for ( i = offset; i < self._row.length; i++) { + if (self._row[i] ^ isWhite) { + counter[counterPos]++; + } else { + if (counterPos === counter.length - 1) { + normalized = self._normalize(counter); + if (normalized) { + for (code = 0; code < coderange; code++) { + error = self._matchPattern(normalized, self.CODE_PATTERN[code]); + if (error < bestMatch.error) { + bestMatch.code = code; + bestMatch.error = error; } - } else { - counterPos++; } - counter[counterPos] = 1; - isWhite = !isWhite; + bestMatch.end = i; + if (bestMatch.error > self.AVG_CODE_ERROR) { + return null; + } + return bestMatch; } + } else { + counterPos++; } - return null; - }; - - EANReader.prototype._findPattern = function(pattern, offset, isWhite, tryHarder, epsilon) { - var counter = [], - self = this, - i, - counterPos = 0, - bestMatch = { - error : Number.MAX_VALUE, - code : -1, - start : 0, - end : 0 - }, - error, - j, - sum, - normalized; - - if (!offset) { - offset = self._nextSet(self._row); - } - - if (isWhite === undefined) { - isWhite = false; - } - - if (tryHarder === undefined) { - tryHarder = true; - } + counter[counterPos] = 1; + isWhite = !isWhite; + } + } + return null; +}; + +EANReader.prototype._findPattern = function(pattern, offset, isWhite, tryHarder, epsilon) { + var counter = [], + self = this, + i, + counterPos = 0, + bestMatch = { + error : Number.MAX_VALUE, + code : -1, + start : 0, + end : 0 + }, + error, + j, + sum, + normalized; + + if (!offset) { + offset = self._nextSet(self._row); + } - if ( epsilon === undefined) { - epsilon = self.AVG_CODE_ERROR; - } + if (isWhite === undefined) { + isWhite = false; + } - for ( i = 0; i < pattern.length; i++) { - counter[i] = 0; - } + if (tryHarder === undefined) { + tryHarder = true; + } - for ( i = offset; i < self._row.length; i++) { - if (self._row[i] ^ isWhite) { - counter[counterPos]++; - } else { - if (counterPos === counter.length - 1) { - sum = 0; - for ( j = 0; j < counter.length; j++) { - sum += counter[j]; - } - normalized = self._normalize(counter); - if (normalized) { - error = self._matchPattern(normalized, pattern); - - if (error < epsilon) { - bestMatch.error = error; - bestMatch.start = i - sum; - bestMatch.end = i; - return bestMatch; - } - } - if (tryHarder) { - for ( j = 0; j < counter.length - 2; j++) { - counter[j] = counter[j + 2]; - } - counter[counter.length - 2] = 0; - counter[counter.length - 1] = 0; - counterPos--; - } else { - return null; - } - } else { - counterPos++; - } - counter[counterPos] = 1; - isWhite = !isWhite; - } - } - return null; - }; + if ( epsilon === undefined) { + epsilon = self.AVG_CODE_ERROR; + } - EANReader.prototype._findStart = function() { - var self = this, - leadingWhitespaceStart, - offset = self._nextSet(self._row), - startInfo; + for ( i = 0; i < pattern.length; i++) { + counter[i] = 0; + } - while(!startInfo) { - startInfo = self._findPattern(self.START_PATTERN, offset); - if (!startInfo) { - return null; + for ( i = offset; i < self._row.length; i++) { + if (self._row[i] ^ isWhite) { + counter[counterPos]++; + } else { + if (counterPos === counter.length - 1) { + sum = 0; + for ( j = 0; j < counter.length; j++) { + sum += counter[j]; } - leadingWhitespaceStart = startInfo.start - (startInfo.end - startInfo.start); - if (leadingWhitespaceStart >= 0) { - if (self._matchRange(leadingWhitespaceStart, startInfo.start, 0)) { - return startInfo; + normalized = self._normalize(counter); + if (normalized) { + error = self._matchPattern(normalized, pattern); + + if (error < epsilon) { + bestMatch.error = error; + bestMatch.start = i - sum; + bestMatch.end = i; + return bestMatch; } } - offset = startInfo.end; - startInfo = null; - } - }; - - EANReader.prototype._verifyTrailingWhitespace = function(endInfo) { - var self = this, - trailingWhitespaceEnd; - - trailingWhitespaceEnd = endInfo.end + (endInfo.end - endInfo.start); - if (trailingWhitespaceEnd < self._row.length) { - if (self._matchRange(endInfo.end, trailingWhitespaceEnd, 0)) { - return endInfo; + if (tryHarder) { + for ( j = 0; j < counter.length - 2; j++) { + counter[j] = counter[j + 2]; + } + counter[counter.length - 2] = 0; + counter[counter.length - 1] = 0; + counterPos--; + } else { + return null; } + } else { + counterPos++; } + counter[counterPos] = 1; + isWhite = !isWhite; + } + } + return null; +}; + +EANReader.prototype._findStart = function() { + var self = this, + leadingWhitespaceStart, + offset = self._nextSet(self._row), + startInfo; + + while(!startInfo) { + startInfo = self._findPattern(self.START_PATTERN, offset); + if (!startInfo) { return null; - }; + } + leadingWhitespaceStart = startInfo.start - (startInfo.end - startInfo.start); + if (leadingWhitespaceStart >= 0) { + if (self._matchRange(leadingWhitespaceStart, startInfo.start, 0)) { + return startInfo; + } + } + offset = startInfo.end; + startInfo = null; + } +}; - EANReader.prototype._findEnd = function(offset, isWhite) { - var self = this, - endInfo = self._findPattern(self.STOP_PATTERN, offset, isWhite, false); +EANReader.prototype._verifyTrailingWhitespace = function(endInfo) { + var self = this, + trailingWhitespaceEnd; - return endInfo !== null ? self._verifyTrailingWhitespace(endInfo) : null; - }; + trailingWhitespaceEnd = endInfo.end + (endInfo.end - endInfo.start); + if (trailingWhitespaceEnd < self._row.length) { + if (self._matchRange(endInfo.end, trailingWhitespaceEnd, 0)) { + return endInfo; + } + } + return null; +}; - EANReader.prototype._calculateFirstDigit = function(codeFrequency) { - var i, - self = this; +EANReader.prototype._findEnd = function(offset, isWhite) { + var self = this, + endInfo = self._findPattern(self.STOP_PATTERN, offset, isWhite, false); - for ( i = 0; i < self.CODE_FREQUENCY.length; i++) { - if (codeFrequency === self.CODE_FREQUENCY[i]) { - return i; - } - } - return null; - }; + return endInfo !== null ? self._verifyTrailingWhitespace(endInfo) : null; +}; - EANReader.prototype._decodePayload = function(code, result, decodedCodes) { - var i, - self = this, - codeFrequency = 0x0, - firstDigit; +EANReader.prototype._calculateFirstDigit = function(codeFrequency) { + var i, + self = this; - for ( i = 0; i < 6; i++) { - code = self._decodeCode(code.end); - if (!code) { - return null; - } - if (code.code >= self.CODE_G_START) { - code.code = code.code - self.CODE_G_START; - codeFrequency |= 1 << (5 - i); - } else { - codeFrequency |= 0 << (5 - i); - } - result.push(code.code); - decodedCodes.push(code); - } + for ( i = 0; i < self.CODE_FREQUENCY.length; i++) { + if (codeFrequency === self.CODE_FREQUENCY[i]) { + return i; + } + } + return null; +}; + +EANReader.prototype._decodePayload = function(code, result, decodedCodes) { + var i, + self = this, + codeFrequency = 0x0, + firstDigit; + + for ( i = 0; i < 6; i++) { + code = self._decodeCode(code.end); + if (!code) { + return null; + } + if (code.code >= self.CODE_G_START) { + code.code = code.code - self.CODE_G_START; + codeFrequency |= 1 << (5 - i); + } else { + codeFrequency |= 0 << (5 - i); + } + result.push(code.code); + decodedCodes.push(code); + } - firstDigit = self._calculateFirstDigit(codeFrequency); - if (firstDigit === null) { - return null; - } - result.unshift(firstDigit); + firstDigit = self._calculateFirstDigit(codeFrequency); + if (firstDigit === null) { + return null; + } + result.unshift(firstDigit); - code = self._findPattern(self.MIDDLE_PATTERN, code.end, true, false); - if (code === null) { - return null; - } - decodedCodes.push(code); + code = self._findPattern(self.MIDDLE_PATTERN, code.end, true, false); + if (code === null) { + return null; + } + decodedCodes.push(code); - for ( i = 0; i < 6; i++) { - code = self._decodeCode(code.end, self.CODE_G_START); - if (!code) { - return null; - } - decodedCodes.push(code); - result.push(code.code); - } + for ( i = 0; i < 6; i++) { + code = self._decodeCode(code.end, self.CODE_G_START); + if (!code) { + return null; + } + decodedCodes.push(code); + result.push(code.code); + } - return code; - }; + return code; +}; - EANReader.prototype._decode = function() { - var startInfo, - self = this, - code, - result = [], - decodedCodes = []; +EANReader.prototype._decode = function() { + var startInfo, + self = this, + code, + result = [], + decodedCodes = []; - startInfo = self._findStart(); - if (!startInfo) { - return null; - } - code = { - code : startInfo.code, - start : startInfo.start, - end : startInfo.end - }; - decodedCodes.push(code); - code = self._decodePayload(code, result, decodedCodes); - if (!code) { - return null; - } - code = self._findEnd(code.end, false); - if (!code){ - return null; - } + startInfo = self._findStart(); + if (!startInfo) { + return null; + } + code = { + code : startInfo.code, + start : startInfo.start, + end : startInfo.end + }; + decodedCodes.push(code); + code = self._decodePayload(code, result, decodedCodes); + if (!code) { + return null; + } + code = self._findEnd(code.end, false); + if (!code){ + return null; + } - decodedCodes.push(code); + decodedCodes.push(code); - // Checksum - if (!self._checksum(result)) { - return null; - } + // Checksum + if (!self._checksum(result)) { + return null; + } - return { - code : result.join(""), - start : startInfo.start, - end : code.end, - codeset : "", - startInfo : startInfo, - decodedCodes : decodedCodes - }; - }; - - EANReader.prototype._checksum = function(result) { - var sum = 0, i; - - for ( i = result.length - 2; i >= 0; i -= 2) { - sum += result[i]; - } - sum *= 3; - for ( i = result.length - 1; i >= 0; i -= 2) { - sum += result[i]; - } - return sum % 10 === 0; - }; - - return (EANReader); + return { + code : result.join(""), + start : startInfo.start, + end : code.end, + codeset : "", + startInfo : startInfo, + decodedCodes : decodedCodes + }; +}; + +EANReader.prototype._checksum = function(result) { + var sum = 0, i; + + for ( i = result.length - 2; i >= 0; i -= 2) { + sum += result[i]; } -); \ No newline at end of file + sum *= 3; + for ( i = result.length - 1; i >= 0; i -= 2) { + sum += result[i]; + } + return sum % 10 === 0; +}; + +export default (EANReader); diff --git a/src/events.js b/src/events.js index d5eea266..5769bb23 100644 --- a/src/events.js +++ b/src/events.js @@ -1,91 +1,82 @@ -/* jshint undef: true, unused: true, browser:true, devel: true */ -/* global define */ +export default function() { + var events = {}; -define(function() { - "use strict"; + function getEvent(eventName) { + if (!events[eventName]) { + events[eventName] = { + subscribers : [] + }; + } + return events[eventName]; + } - var _events = function() { - var events = {}; + function clearEvents(){ + events = {}; + } - function getEvent(eventName) { - if (!events[eventName]) { - events[eventName] = { - subscribers : [] - }; - } - return events[eventName]; - } - - function clearEvents(){ - events = {}; + function publishSubscription(subscription, data) { + if (subscription.async) { + setTimeout(function() { + subscription.callback(data); + }, 4); + } else { + subscription.callback(data); } + } - function publishSubscription(subscription, data) { - if (subscription.async) { - setTimeout(function() { - subscription.callback(data); - }, 4); - } else { - subscription.callback(data); + function subscribe(event, callback, async) { + var subscription; + + if ( typeof callback === "function") { + subscription = { + callback : callback, + async : async + }; + } else { + subscription = callback; + if (!subscription.callback) { + throw "Callback was not specified on options"; } } - - function subscribe(event, callback, async) { - var subscription; - if ( typeof callback === "function") { - subscription = { - callback : callback, - async : async - }; - } else { - subscription = callback; - if (!subscription.callback) { - throw "Callback was not specified on options"; - } - } + getEvent(event).subscribers.push(subscription); + } - getEvent(event).subscribers.push(subscription); - } + return { + subscribe : function(event, callback, async) { + return subscribe(event, callback, async); + }, + publish : function(eventName, data) { + var event = getEvent(eventName), + subscribers = event.subscribers; + + event.subscribers = subscribers.filter(function(subscriber) { + publishSubscription(subscriber, data); + return !subscriber.once; + }); + }, + once: function(event, callback, async) { + subscribe(event, { + callback: callback, + async: async, + once: true + }); + }, + unsubscribe: function(eventName, callback) { + var event; - return { - subscribe : function(event, callback, async) { - return subscribe(event, callback, async); - }, - publish : function(eventName, data) { - var event = getEvent(eventName), - subscribers = event.subscribers; - - event.subscribers = subscribers.filter(function(subscriber) { - publishSubscription(subscriber, data); - return !subscriber.once; - }); - }, - once: function(event, callback, async) { - subscribe(event, { - callback: callback, - async: async, - once: true - }); - }, - unsubscribe: function(eventName, callback) { - var event; - - if (eventName) { - event = getEvent(eventName); - if (event && callback) { - event.subscribers = event.subscribers.filter(function(subscriber){ - return subscriber.callback !== callback; - }); - } else { - event.subscribers = []; - } + if (eventName) { + event = getEvent(eventName); + if (event && callback) { + event.subscribers = event.subscribers.filter(function(subscriber){ + return subscriber.callback !== callback; + }); } else { - clearEvents(); + event.subscribers = []; } + } else { + clearEvents(); } - }; - }(); - - return _events; -}); \ No newline at end of file + } + }; +}(); diff --git a/src/frame_grabber.js b/src/frame_grabber.js index 92dcd7a9..a739b49b 100644 --- a/src/frame_grabber.js +++ b/src/frame_grabber.js @@ -1,78 +1,73 @@ -/* jshint undef: true, unused: true, browser:true, devel: true */ -/* global define */ +import CVUtils from './cv_utils'; -define(["cv_utils"], function(CVUtils) { - "use strict"; +var FrameGrabber = {}; - var FrameGrabber = {}; +FrameGrabber.create = function(inputStream, canvas) { + var _that = {}, + _streamConfig = inputStream.getConfig(), + _video_size = CVUtils.imageRef(inputStream.getRealWidth(), inputStream.getRealHeight()), + _canvasSize = inputStream.getCanvasSize(), + _size = CVUtils.imageRef(inputStream.getWidth(), inputStream.getHeight()), + topRight = inputStream.getTopRight(), + _sx = topRight.x, + _sy = topRight.y, + _canvas, + _ctx = null, + _data = null; - FrameGrabber.create = function(inputStream, canvas) { - var _that = {}, - _streamConfig = inputStream.getConfig(), - _video_size = CVUtils.imageRef(inputStream.getRealWidth(), inputStream.getRealHeight()), - _canvasSize = inputStream.getCanvasSize(), - _size = CVUtils.imageRef(inputStream.getWidth(), inputStream.getHeight()), - topRight = inputStream.getTopRight(), - _sx = topRight.x, - _sy = topRight.y, - _canvas, - _ctx = null, - _data = null; + _canvas = canvas ? canvas : document.createElement("canvas"); + _canvas.width = _canvasSize.x; + _canvas.height = _canvasSize.y; + _ctx = _canvas.getContext("2d"); + _data = new Uint8Array(_size.x * _size.y); + console.log("FrameGrabber", JSON.stringify({ + size: _size, + topRight: topRight, + videoSize: _video_size, + canvasSize: _canvasSize + })); - _canvas = canvas ? canvas : document.createElement("canvas"); - _canvas.width = _canvasSize.x; - _canvas.height = _canvasSize.y; - _ctx = _canvas.getContext("2d"); - _data = new Uint8Array(_size.x * _size.y); - console.log("FrameGrabber", JSON.stringify({ - size: _size, - topRight: topRight, - videoSize: _video_size, - canvasSize: _canvasSize - })); - - /** - * Uses the given array as frame-buffer - */ - _that.attachData = function(data) { - _data = data; - }; + /** + * Uses the given array as frame-buffer + */ + _that.attachData = function(data) { + _data = data; + }; - /** - * Returns the used frame-buffer - */ - _that.getData = function() { - return _data; - }; + /** + * Returns the used frame-buffer + */ + _that.getData = function() { + return _data; + }; - /** - * Fetches a frame from the input-stream and puts into the frame-buffer. - * The image-data is converted to gray-scale and then half-sampled if configured. - */ - _that.grab = function() { - var doHalfSample = _streamConfig.halfSample, - frame = inputStream.getFrame(), - ctxData; - if (frame) { - _ctx.drawImage(frame, 0, 0, _canvasSize.x, _canvasSize.y); - ctxData = _ctx.getImageData(_sx, _sy, _size.x, _size.y).data; - if(doHalfSample){ - CVUtils.grayAndHalfSampleFromCanvasData(ctxData, _size, _data); - } else { - CVUtils.computeGray(ctxData, _data, _streamConfig); - } - return true; + /** + * Fetches a frame from the input-stream and puts into the frame-buffer. + * The image-data is converted to gray-scale and then half-sampled if configured. + */ + _that.grab = function() { + var doHalfSample = _streamConfig.halfSample, + frame = inputStream.getFrame(), + ctxData; + if (frame) { + _ctx.drawImage(frame, 0, 0, _canvasSize.x, _canvasSize.y); + ctxData = _ctx.getImageData(_sx, _sy, _size.x, _size.y).data; + if(doHalfSample){ + CVUtils.grayAndHalfSampleFromCanvasData(ctxData, _size, _data); } else { - return false; + CVUtils.computeGray(ctxData, _data, _streamConfig); } - }; - - _that.getSize = function() { - return _size; - }; + return true; + } else { + return false; + } + }; - return _that; + _that.getSize = function() { + return _size; }; - return (FrameGrabber); -}); + return _that; +}; + +export default FrameGrabber; diff --git a/src/html_utils.js b/src/html_utils.js deleted file mode 100644 index c26c13ce..00000000 --- a/src/html_utils.js +++ /dev/null @@ -1,40 +0,0 @@ -/* jshint undef: true, unused: true, browser:true, devel: true */ -/* global define */ - -define([], function() { - "use strict"; - - function createNode(htmlStr) { - var temp = document.createElement('div'); - - temp.innerHTML = htmlStr; - while (temp.firstChild) { - return temp.firstChild; - } - } - - function mergeObjects(obj1, obj2) { - for (var p in obj2) { - try { - if (obj2[p].constructor == Object) { - obj1[p] = mergeObjects(obj1[p], obj2[p]); - } else { - obj1[p] = obj2[p]; - } - } catch(e) { - obj1[p] = obj2[p]; - } - } - - return obj1; - } - - return { - createNode : function(htmlStr) { - return createNode(htmlStr); - }, - mergeObjects : function(obj1, obj2) { - return mergeObjects(obj1, obj2); - } - }; -}); \ No newline at end of file diff --git a/src/i2of5_reader.js b/src/i2of5_reader.js index dc31655c..e6e06f15 100644 --- a/src/i2of5_reader.js +++ b/src/i2of5_reader.js @@ -1,344 +1,334 @@ -/* jshint undef: true, unused: true, browser:true, devel: true */ -/* global define */ - -define( - [ - "./barcode_reader", - "./html_utils" - ], - function(BarcodeReader, HTMLUtils) { - "use strict"; - - function I2of5Reader(opts) { - opts = HTMLUtils.mergeObjects(getDefaulConfig(), opts); - BarcodeReader.call(this, opts); - this.barSpaceRatio = [1, 1]; - if (opts.normalizeBarSpaceWidth) { - this.SINGLE_CODE_ERROR = 0.38; - this.AVG_CODE_ERROR = 0.09; - } +import BarcodeReader from './barcode_reader'; +const merge = require('lodash/object/merge'); + +function I2of5Reader(opts) { + opts = merge(getDefaulConfig(), opts); + BarcodeReader.call(this, opts); + this.barSpaceRatio = [1, 1]; + if (opts.normalizeBarSpaceWidth) { + this.SINGLE_CODE_ERROR = 0.38; + this.AVG_CODE_ERROR = 0.09; + } +} + +function getDefaulConfig() { + var config = {}; + + Object.keys(I2of5Reader.CONFIG_KEYS).forEach(function(key) { + config[key] = I2of5Reader.CONFIG_KEYS[key]['default']; + }); + return config; +} + +var N = 1, + W = 3, + properties = { + MODULO : {value: 10}, + START_PATTERN : {value: [N*2.5, N*2.5, N*2.5, N*2.5]}, + STOP_PATTERN : {value: [N*2, N*2, W*2]}, + CODE_PATTERN : {value: [ + [N, N, W, W, N], + [W, N, N, N, W], + [N, W, N, N, W], + [W, W, N, N, N], + [N, N, W, N, W], + [W, N, W, N, N], + [N, W, W, N, N], + [N, N, N, W, W], + [W, N, N, W, N], + [N, W, N, W, N] + ]}, + SINGLE_CODE_ERROR: {value: 0.78, writable: true}, + AVG_CODE_ERROR: {value: 0.38, writable: true}, + MAX_CORRECTION_FACTOR: {value: 5}, + FORMAT: {value: "i2of5"} +}; + +I2of5Reader.prototype = Object.create(BarcodeReader.prototype, properties); +I2of5Reader.prototype.constructor = I2of5Reader; + +I2of5Reader.prototype._matchPattern = function(counter, code) { + if (this.config.normalizeBarSpaceWidth) { + var i, + counterSum = [0, 0], + codeSum = [0, 0], + correction = [0, 0], + correctionRatio = this.MAX_CORRECTION_FACTOR, + correctionRatioInverse = 1 / correctionRatio; + + for (i = 0; i < counter.length; i++) { + counterSum[i % 2] += counter[i]; + codeSum[i % 2] += code[i]; } - - function getDefaulConfig() { - var config = {}; - - Object.keys(I2of5Reader.CONFIG_KEYS).forEach(function(key) { - config[key] = I2of5Reader.CONFIG_KEYS[key]['default']; - }); - return config; + correction[0] = codeSum[0] / counterSum[0]; + correction[1] = codeSum[1] / counterSum[1]; + + correction[0] = Math.max(Math.min(correction[0], correctionRatio), correctionRatioInverse); + correction[1] = Math.max(Math.min(correction[1], correctionRatio), correctionRatioInverse); + this.barSpaceRatio = correction; + for (i = 0; i < counter.length; i++) { + counter[i] *= this.barSpaceRatio[i % 2]; } + } + return BarcodeReader.prototype._matchPattern.call(this, counter, code); +}; + +I2of5Reader.prototype._findPattern = function(pattern, offset, isWhite, tryHarder) { + var counter = [], + self = this, + i, + counterPos = 0, + bestMatch = { + error : Number.MAX_VALUE, + code : -1, + start : 0, + end : 0 + }, + error, + j, + sum, + normalized, + epsilon = self.AVG_CODE_ERROR; + + isWhite = isWhite || false; + tryHarder = tryHarder || false; + + if (!offset) { + offset = self._nextSet(self._row); + } - var N = 1, - W = 3, - properties = { - MODULO : {value: 10}, - START_PATTERN : {value: [N*2.5, N*2.5, N*2.5, N*2.5]}, - STOP_PATTERN : {value: [N*2, N*2, W*2]}, - CODE_PATTERN : {value: [ - [N, N, W, W, N], - [W, N, N, N, W], - [N, W, N, N, W], - [W, W, N, N, N], - [N, N, W, N, W], - [W, N, W, N, N], - [N, W, W, N, N], - [N, N, N, W, W], - [W, N, N, W, N], - [N, W, N, W, N] - ]}, - SINGLE_CODE_ERROR: {value: 0.78, writable: true}, - AVG_CODE_ERROR: {value: 0.38, writable: true}, - MAX_CORRECTION_FACTOR: {value: 5}, - FORMAT: {value: "i2of5"} - }; + for ( i = 0; i < pattern.length; i++) { + counter[i] = 0; + } - I2of5Reader.prototype = Object.create(BarcodeReader.prototype, properties); - I2of5Reader.prototype.constructor = I2of5Reader; - - I2of5Reader.prototype._matchPattern = function(counter, code) { - if (this.config.normalizeBarSpaceWidth) { - var i, - counterSum = [0, 0], - codeSum = [0, 0], - correction = [0, 0], - correctionRatio = this.MAX_CORRECTION_FACTOR, - correctionRatioInverse = 1 / correctionRatio; - - for (i = 0; i < counter.length; i++) { - counterSum[i % 2] += counter[i]; - codeSum[i % 2] += code[i]; - } - correction[0] = codeSum[0] / counterSum[0]; - correction[1] = codeSum[1] / counterSum[1]; - - correction[0] = Math.max(Math.min(correction[0], correctionRatio), correctionRatioInverse); - correction[1] = Math.max(Math.min(correction[1], correctionRatio), correctionRatioInverse); - this.barSpaceRatio = correction; - for (i = 0; i < counter.length; i++) { - counter[i] *= this.barSpaceRatio[i % 2]; + for ( i = offset; i < self._row.length; i++) { + if (self._row[i] ^ isWhite) { + counter[counterPos]++; + } else { + if (counterPos === counter.length - 1) { + sum = 0; + for ( j = 0; j < counter.length; j++) { + sum += counter[j]; } - } - return BarcodeReader.prototype._matchPattern.call(this, counter, code); - }; + normalized = self._normalize(counter); + if (normalized) { + error = self._matchPattern(normalized, pattern); - I2of5Reader.prototype._findPattern = function(pattern, offset, isWhite, tryHarder) { - var counter = [], - self = this, - i, - counterPos = 0, - bestMatch = { - error : Number.MAX_VALUE, - code : -1, - start : 0, - end : 0 - }, - error, - j, - sum, - normalized, - epsilon = self.AVG_CODE_ERROR; - - isWhite = isWhite || false; - tryHarder = tryHarder || false; - - if (!offset) { - offset = self._nextSet(self._row); - } - - for ( i = 0; i < pattern.length; i++) { - counter[i] = 0; - } - - for ( i = offset; i < self._row.length; i++) { - if (self._row[i] ^ isWhite) { - counter[counterPos]++; - } else { - if (counterPos === counter.length - 1) { - sum = 0; - for ( j = 0; j < counter.length; j++) { - sum += counter[j]; - } - normalized = self._normalize(counter); - if (normalized) { - error = self._matchPattern(normalized, pattern); - - if (error < epsilon) { - bestMatch.error = error; - bestMatch.start = i - sum; - bestMatch.end = i; - return bestMatch; - } - } - if (tryHarder) { - for (j = 0; j < counter.length - 2; j++) { - counter[j] = counter[j + 2]; - } - counter[counter.length - 2] = 0; - counter[counter.length - 1] = 0; - counterPos--; - } else { - return null; - } - } else { - counterPos++; + if (error < epsilon) { + bestMatch.error = error; + bestMatch.start = i - sum; + bestMatch.end = i; + return bestMatch; } - counter[counterPos] = 1; - isWhite = !isWhite; } - } - return null; - }; - - I2of5Reader.prototype._findStart = function() { - var self = this, - leadingWhitespaceStart, - offset = self._nextSet(self._row), - startInfo, - narrowBarWidth = 1; - - while(!startInfo) { - startInfo = self._findPattern(self.START_PATTERN, offset, false, true); - if (!startInfo) { - return null; - } - narrowBarWidth = Math.floor((startInfo.end - startInfo.start) / 4); - leadingWhitespaceStart = startInfo.start - narrowBarWidth*10; - if (leadingWhitespaceStart >= 0) { - if (self._matchRange(leadingWhitespaceStart, startInfo.start, 0)) { - return startInfo; + if (tryHarder) { + for (j = 0; j < counter.length - 2; j++) { + counter[j] = counter[j + 2]; } + counter[counter.length - 2] = 0; + counter[counter.length - 1] = 0; + counterPos--; + } else { + return null; } - offset = startInfo.end; - startInfo = null; - } - }; - - I2of5Reader.prototype._verifyTrailingWhitespace = function(endInfo) { - var self = this, - trailingWhitespaceEnd; - - trailingWhitespaceEnd = endInfo.end + ((endInfo.end - endInfo.start) / 2); - if (trailingWhitespaceEnd < self._row.length) { - if (self._matchRange(endInfo.end, trailingWhitespaceEnd, 0)) { - return endInfo; - } + } else { + counterPos++; } + counter[counterPos] = 1; + isWhite = !isWhite; + } + } + return null; +}; + +I2of5Reader.prototype._findStart = function() { + var self = this, + leadingWhitespaceStart, + offset = self._nextSet(self._row), + startInfo, + narrowBarWidth = 1; + + while(!startInfo) { + startInfo = self._findPattern(self.START_PATTERN, offset, false, true); + if (!startInfo) { return null; - }; - - I2of5Reader.prototype._findEnd = function() { - var self = this, - endInfo, - tmp; - - self._row.reverse(); - endInfo = self._findPattern(self.STOP_PATTERN); - self._row.reverse(); - - if (endInfo === null) { - return null; + } + narrowBarWidth = Math.floor((startInfo.end - startInfo.start) / 4); + leadingWhitespaceStart = startInfo.start - narrowBarWidth*10; + if (leadingWhitespaceStart >= 0) { + if (self._matchRange(leadingWhitespaceStart, startInfo.start, 0)) { + return startInfo; } + } + offset = startInfo.end; + startInfo = null; + } +}; - // reverse numbers - tmp = endInfo.start; - endInfo.start = self._row.length - endInfo.end; - endInfo.end = self._row.length - tmp; +I2of5Reader.prototype._verifyTrailingWhitespace = function(endInfo) { + var self = this, + trailingWhitespaceEnd; - return endInfo !== null ? self._verifyTrailingWhitespace(endInfo) : null; - }; + trailingWhitespaceEnd = endInfo.end + ((endInfo.end - endInfo.start) / 2); + if (trailingWhitespaceEnd < self._row.length) { + if (self._matchRange(endInfo.end, trailingWhitespaceEnd, 0)) { + return endInfo; + } + } + return null; +}; - I2of5Reader.prototype._decodePair = function(counterPair) { - var i, - code, - codes = [], - self = this; +I2of5Reader.prototype._findEnd = function() { + var self = this, + endInfo, + tmp; - for (i = 0; i < counterPair.length; i++) { - code = self._decodeCode(counterPair[i]); - if (!code) { - return null; - } - codes.push(code); - } - return codes; - }; + self._row.reverse(); + endInfo = self._findPattern(self.STOP_PATTERN); + self._row.reverse(); - I2of5Reader.prototype._decodeCode = function(counter) { - var j, - self = this, - sum = 0, - normalized, - error, - epsilon = self.AVG_CODE_ERROR, - code, - bestMatch = { - error : Number.MAX_VALUE, - code : -1, - start : 0, - end : 0 - }; - - for ( j = 0; j < counter.length; j++) { - sum += counter[j]; - } - normalized = self._normalize(counter); - if (normalized) { - for (code = 0; code < self.CODE_PATTERN.length; code++) { - error = self._matchPattern(normalized, self.CODE_PATTERN[code]); - if (error < bestMatch.error) { - bestMatch.code = code; - bestMatch.error = error; - } - } - if (bestMatch.error < epsilon) { - return bestMatch; - } - } - return null; - }; + if (endInfo === null) { + return null; + } - I2of5Reader.prototype._decodePayload = function(counters, result, decodedCodes) { - var i, - self = this, - pos = 0, - counterLength = counters.length, - counterPair = [[0, 0, 0, 0, 0], [0, 0, 0, 0, 0]], - codes; - - while (pos < counterLength) { - for (i = 0; i < 5; i++) { - counterPair[0][i] = counters[pos]*this.barSpaceRatio[0]; - counterPair[1][i] = counters[pos + 1]*this.barSpaceRatio[1]; - pos += 2; - } - codes = self._decodePair(counterPair); - if (!codes) { - return null; - } - for (i = 0; i < codes.length; i++) { - result.push(codes[i].code + ""); - decodedCodes.push(codes[i]); - } - } - return codes; - }; + // reverse numbers + tmp = endInfo.start; + endInfo.start = self._row.length - endInfo.end; + endInfo.end = self._row.length - tmp; - I2of5Reader.prototype._verifyCounterLength = function(counters) { - return (counters.length % 10 === 0); - }; + return endInfo !== null ? self._verifyTrailingWhitespace(endInfo) : null; +}; - I2of5Reader.prototype._decode = function() { - var startInfo, - endInfo, - self = this, - code, - result = [], - decodedCodes = [], - counters; - - startInfo = self._findStart(); - if (!startInfo) { - return null; - } - decodedCodes.push(startInfo); +I2of5Reader.prototype._decodePair = function(counterPair) { + var i, + code, + codes = [], + self = this; - endInfo = self._findEnd(); - if (!endInfo) { - return null; - } + for (i = 0; i < counterPair.length; i++) { + code = self._decodeCode(counterPair[i]); + if (!code) { + return null; + } + codes.push(code); + } + return codes; +}; + +I2of5Reader.prototype._decodeCode = function(counter) { + var j, + self = this, + sum = 0, + normalized, + error, + epsilon = self.AVG_CODE_ERROR, + code, + bestMatch = { + error : Number.MAX_VALUE, + code : -1, + start : 0, + end : 0 + }; - counters = self._fillCounters(startInfo.end, endInfo.start, false); - if (!self._verifyCounterLength(counters)) { - return null; - } - code = self._decodePayload(counters, result, decodedCodes); - if (!code) { - return null; - } - if (result.length % 2 !== 0 || - result.length < 6) { - return null; + for ( j = 0; j < counter.length; j++) { + sum += counter[j]; + } + normalized = self._normalize(counter); + if (normalized) { + for (code = 0; code < self.CODE_PATTERN.length; code++) { + error = self._matchPattern(normalized, self.CODE_PATTERN[code]); + if (error < bestMatch.error) { + bestMatch.code = code; + bestMatch.error = error; } + } + if (bestMatch.error < epsilon) { + return bestMatch; + } + } + return null; +}; + +I2of5Reader.prototype._decodePayload = function(counters, result, decodedCodes) { + var i, + self = this, + pos = 0, + counterLength = counters.length, + counterPair = [[0, 0, 0, 0, 0], [0, 0, 0, 0, 0]], + codes; + + while (pos < counterLength) { + for (i = 0; i < 5; i++) { + counterPair[0][i] = counters[pos]*this.barSpaceRatio[0]; + counterPair[1][i] = counters[pos + 1]*this.barSpaceRatio[1]; + pos += 2; + } + codes = self._decodePair(counterPair); + if (!codes) { + return null; + } + for (i = 0; i < codes.length; i++) { + result.push(codes[i].code + ""); + decodedCodes.push(codes[i]); + } + } + return codes; +}; + +I2of5Reader.prototype._verifyCounterLength = function(counters) { + return (counters.length % 10 === 0); +}; + +I2of5Reader.prototype._decode = function() { + var startInfo, + endInfo, + self = this, + code, + result = [], + decodedCodes = [], + counters; + + startInfo = self._findStart(); + if (!startInfo) { + return null; + } + decodedCodes.push(startInfo); - decodedCodes.push(endInfo); - return { - code : result.join(""), - start : startInfo.start, - end : endInfo.end, - startInfo : startInfo, - decodedCodes : decodedCodes - }; - }; + endInfo = self._findEnd(); + if (!endInfo) { + return null; + } - I2of5Reader.CONFIG_KEYS = { - normalizeBarSpaceWidth: { - 'type': 'boolean', - 'default': false, - 'description': 'If true, the reader tries to normalize the' + - 'width-difference between bars and spaces' - } - }; + counters = self._fillCounters(startInfo.end, endInfo.start, false); + if (!self._verifyCounterLength(counters)) { + return null; + } + code = self._decodePayload(counters, result, decodedCodes); + if (!code) { + return null; + } + if (result.length % 2 !== 0 || + result.length < 6) { + return null; + } - return (I2of5Reader); + decodedCodes.push(endInfo); + return { + code : result.join(""), + start : startInfo.start, + end : endInfo.end, + startInfo : startInfo, + decodedCodes : decodedCodes + }; +}; + +I2of5Reader.CONFIG_KEYS = { + normalizeBarSpaceWidth: { + 'type': 'boolean', + 'default': false, + 'description': 'If true, the reader tries to normalize the' + + 'width-difference between bars and spaces' } -); \ No newline at end of file +}; + +export default I2of5Reader; diff --git a/src/image_debug.js b/src/image_debug.js index 3eb96784..40a82975 100644 --- a/src/image_debug.js +++ b/src/image_debug.js @@ -1,49 +1,41 @@ -/* jshint undef: true, unused: true, browser:true, devel: true */ -/* global define */ - -define(function() { - "use strict"; - - return { - drawRect: function(pos, size, ctx, style){ - ctx.strokeStyle = style.color; - ctx.fillStyle = style.color; - ctx.lineWidth = 1; - ctx.beginPath(); - ctx.strokeRect(pos.x, pos.y, size.x, size.y); - }, - drawPath: function(path, def, ctx, style) { - ctx.strokeStyle = style.color; - ctx.fillStyle = style.color; - ctx.lineWidth = style.lineWidth; - ctx.beginPath(); - ctx.moveTo(path[0][def.x], path[0][def.y]); - for (var j = 1; j < path.length; j++) { - ctx.lineTo(path[j][def.x], path[j][def.y]); - } - ctx.closePath(); - ctx.stroke(); - }, - drawImage: function(imageData, size, ctx) { - var canvasData = ctx.getImageData(0, 0, size.x, size.y), - data = canvasData.data, - imageDataPos = imageData.length, - canvasDataPos = data.length, - value; +export default { + drawRect: function(pos, size, ctx, style){ + ctx.strokeStyle = style.color; + ctx.fillStyle = style.color; + ctx.lineWidth = 1; + ctx.beginPath(); + ctx.strokeRect(pos.x, pos.y, size.x, size.y); + }, + drawPath: function(path, def, ctx, style) { + ctx.strokeStyle = style.color; + ctx.fillStyle = style.color; + ctx.lineWidth = style.lineWidth; + ctx.beginPath(); + ctx.moveTo(path[0][def.x], path[0][def.y]); + for (var j = 1; j < path.length; j++) { + ctx.lineTo(path[j][def.x], path[j][def.y]); + } + ctx.closePath(); + ctx.stroke(); + }, + drawImage: function(imageData, size, ctx) { + var canvasData = ctx.getImageData(0, 0, size.x, size.y), + data = canvasData.data, + imageDataPos = imageData.length, + canvasDataPos = data.length, + value; - if (canvasDataPos/imageDataPos !== 4) { - return false; - } - while(imageDataPos--){ - value = imageData[imageDataPos]; - data[--canvasDataPos] = 255; - data[--canvasDataPos] = value; - data[--canvasDataPos] = value; - data[--canvasDataPos] = value; - } - ctx.putImageData(canvasData, 0, 0); - return true; + if (canvasDataPos/imageDataPos !== 4) { + return false; + } + while(imageDataPos--){ + value = imageData[imageDataPos]; + data[--canvasDataPos] = 255; + data[--canvasDataPos] = value; + data[--canvasDataPos] = value; + data[--canvasDataPos] = value; } - }; - -}); + ctx.putImageData(canvasData, 0, 0); + return true; + } +}; diff --git a/src/image_loader.js b/src/image_loader.js index 09bb9f33..685163c2 100644 --- a/src/image_loader.js +++ b/src/image_loader.js @@ -1,63 +1,56 @@ -/* jshint undef: true, unused: true, browser:true, devel: true */ -/* global define */ +var ImageLoader = {}; +ImageLoader.load = function(directory, callback, offset, size, sequence) { + var htmlImagesSrcArray = new Array(size), + htmlImagesArray = new Array(htmlImagesSrcArray.length), + i, + img, + num; -define(function() { - "use strict"; - - var ImageLoader = {}; - ImageLoader.load = function(directory, callback, offset, size, sequence) { - var htmlImagesSrcArray = new Array(size), - htmlImagesArray = new Array(htmlImagesSrcArray.length), - i, - img, - num; - - if (sequence === false) { - htmlImagesSrcArray[0] = directory; - } else { - for ( i = 0; i < htmlImagesSrcArray.length; i++) { - num = (offset + i); - htmlImagesSrcArray[i] = directory + "image-" + ("00" + num).slice(-3) + ".jpg"; - } + if (sequence === false) { + htmlImagesSrcArray[0] = directory; + } else { + for ( i = 0; i < htmlImagesSrcArray.length; i++) { + num = (offset + i); + htmlImagesSrcArray[i] = directory + "image-" + ("00" + num).slice(-3) + ".jpg"; } - htmlImagesArray.notLoaded = []; - htmlImagesArray.addImage = function(img) { - htmlImagesArray.notLoaded.push(img); - }; - htmlImagesArray.loaded = function(loadedImg) { - var notloadedImgs = htmlImagesArray.notLoaded; - for (var x = 0; x < notloadedImgs.length; x++) { - if (notloadedImgs[x] == loadedImg) { - notloadedImgs.splice(x, 1); - for (var y = 0; y < htmlImagesSrcArray.length; y++) { - var imgName = htmlImagesSrcArray[y].substr(htmlImagesSrcArray[y].lastIndexOf("/")); - if (loadedImg.src.lastIndexOf(imgName) != -1) { - htmlImagesArray[y] = loadedImg; - break; - } + } + htmlImagesArray.notLoaded = []; + htmlImagesArray.addImage = function(img) { + htmlImagesArray.notLoaded.push(img); + }; + htmlImagesArray.loaded = function(loadedImg) { + var notloadedImgs = htmlImagesArray.notLoaded; + for (var x = 0; x < notloadedImgs.length; x++) { + if (notloadedImgs[x] == loadedImg) { + notloadedImgs.splice(x, 1); + for (var y = 0; y < htmlImagesSrcArray.length; y++) { + var imgName = htmlImagesSrcArray[y].substr(htmlImagesSrcArray[y].lastIndexOf("/")); + if (loadedImg.src.lastIndexOf(imgName) != -1) { + htmlImagesArray[y] = loadedImg; + break; } - break; } + break; } - if (notloadedImgs.length === 0) { - console.log("Images loaded"); - callback.apply(null, [htmlImagesArray]); - } - }; - - for ( i = 0; i < htmlImagesSrcArray.length; i++) { - img = new Image(); - htmlImagesArray.addImage(img); - addOnloadHandler(img, htmlImagesArray); - img.src = htmlImagesSrcArray[i]; + } + if (notloadedImgs.length === 0) { + console.log("Images loaded"); + callback.apply(null, [htmlImagesArray]); } }; - - function addOnloadHandler(img, htmlImagesArray) { - img.onload = function() { - htmlImagesArray.loaded(this); - }; + + for ( i = 0; i < htmlImagesSrcArray.length; i++) { + img = new Image(); + htmlImagesArray.addImage(img); + addOnloadHandler(img, htmlImagesArray); + img.src = htmlImagesSrcArray[i]; } +}; + +function addOnloadHandler(img, htmlImagesArray) { + img.onload = function() { + htmlImagesArray.loaded(this); + }; +} - return (ImageLoader); -}); +export default (ImageLoader); diff --git a/src/image_wrapper.js b/src/image_wrapper.js index b520fa73..454d63f0 100644 --- a/src/image_wrapper.js +++ b/src/image_wrapper.js @@ -1,427 +1,416 @@ -/* jshint undef: true, unused: true, browser:true, devel: true */ -/* global define */ - -define([ - "subImage", - "cv_utils", - "array_helper", - "gl-matrix" - ], - function(SubImage, CVUtils, ArrayHelper, glMatrix) { - - 'use strict'; - var vec2 = glMatrix.vec2, - mat2 = glMatrix.mat2; - - /** - * Represents a basic image combining the data and size. - * In addition, some methods for manipulation are contained. - * @param size {x,y} The size of the image in pixel - * @param data {Array} If given, a flat array containing the pixel data - * @param ArrayType {Type} If given, the desired DataType of the Array (may be typed/non-typed) - * @param initialize {Boolean} Indicating if the array should be initialized on creation. - * @returns {ImageWrapper} - */ - function ImageWrapper(size, data, ArrayType, initialize) { - if (!data) { - if (ArrayType) { - this.data = new ArrayType(size.x * size.y); - if (ArrayType === Array && initialize) { - ArrayHelper.init(this.data, 0); - } - } else { - this.data = new Uint8Array(size.x * size.y); - if (Uint8Array === Array && initialize) { - ArrayHelper.init(this.data, 0); - } +import SubImage from './subImage'; +import CVUtils from './cv_utils'; +import ArrayHelper from './array_helper'; +import {vec2, mat2} from 'gl-matrix'; + +/** + * Represents a basic image combining the data and size. + * In addition, some methods for manipulation are contained. + * @param size {x,y} The size of the image in pixel + * @param data {Array} If given, a flat array containing the pixel data + * @param ArrayType {Type} If given, the desired DataType of the Array (may be typed/non-typed) + * @param initialize {Boolean} Indicating if the array should be initialized on creation. + * @returns {ImageWrapper} + */ +function ImageWrapper(size, data, ArrayType, initialize) { + if (!data) { + if (ArrayType) { + this.data = new ArrayType(size.x * size.y); + if (ArrayType === Array && initialize) { + ArrayHelper.init(this.data, 0); } - } else { - this.data = data; + this.data = new Uint8Array(size.x * size.y); + if (Uint8Array === Array && initialize) { + ArrayHelper.init(this.data, 0); + } } - this.size = size; - } - /** - * tests if a position is within the image with a given offset - * @param imgRef {x, y} The location to test - * @param border Number the padding value in pixel - * @returns {Boolean} true if location inside the image's border, false otherwise - * @see cvd/image.h - */ - ImageWrapper.prototype.inImageWithBorder = function(imgRef, border) { - return (imgRef.x >= border) && (imgRef.y >= border) && (imgRef.x < (this.size.x - border)) && (imgRef.y < (this.size.y - border)); - }; - - /** - * Transforms an image according to the given affine-transformation matrix. - * @param inImg ImageWrapper a image containing the information to be extracted. - * @param outImg ImageWrapper the image to be filled. The whole image out image is filled by the in image. - * @param M mat2 the matrix used to map point in the out matrix to those in the in matrix - * @param inOrig vec2 origin in the in image - * @param outOrig vec2 origin in the out image - * @returns Number the number of pixels not in the in image - * @see cvd/vision.h - */ - ImageWrapper.transform = function(inImg, outImg, M, inOrig, outOrig) { - var w = outImg.size.x, h = outImg.size.y, iw = inImg.size.x, ih = inImg.size.y; - var across = vec2.clone([M[0], M[2]]); - var down = vec2.clone([M[1], M[3]]); - var defaultValue = 0; - - var p0 = vec2.subtract(inOrig, mat2.xVec2(M, outOrig, vec2.clone()), vec2.clone()); - - var min_x = p0[0], min_y = p0[1]; - var max_x = min_x, max_y = min_y; - var p, i, j; - - var sampleFunc = ImageWrapper.sample; - - if (across[0] < 0) - min_x += w * across[0]; - else - max_x += w * across[0]; - - if (down[0] < 0) - min_x += h * down[0]; - else - max_x += h * down[0]; - - if (across[1] < 0) - min_y += w * across[1]; - else - max_y += w * across[1]; - - if (down[1] < 0) - min_y += h * down[1]; - else - max_y += h * down[1]; - - var carrigeReturn = vec2.subtract(down, vec2.scale(across, w, vec2.clone()), vec2.clone()); - - if (min_x >= 0 && min_y >= 0 && max_x < iw - 1 && max_y < ih - 1) { - p = p0; - for ( i = 0; i < h; ++i, vec2.add(p, carrigeReturn)) - for ( j = 0; j < w; ++j, vec2.add(p, across)) + } else { + this.data = data; + } + this.size = size; +} + +/** + * tests if a position is within the image with a given offset + * @param imgRef {x, y} The location to test + * @param border Number the padding value in pixel + * @returns {Boolean} true if location inside the image's border, false otherwise + * @see cvd/image.h + */ +ImageWrapper.prototype.inImageWithBorder = function(imgRef, border) { + return (imgRef.x >= border) && (imgRef.y >= border) && (imgRef.x < (this.size.x - border)) && (imgRef.y < (this.size.y - border)); +}; + +/** + * Transforms an image according to the given affine-transformation matrix. + * @param inImg ImageWrapper a image containing the information to be extracted. + * @param outImg ImageWrapper the image to be filled. The whole image out image is filled by the in image. + * @param M mat2 the matrix used to map point in the out matrix to those in the in matrix + * @param inOrig vec2 origin in the in image + * @param outOrig vec2 origin in the out image + * @returns Number the number of pixels not in the in image + * @see cvd/vision.h + */ +ImageWrapper.transform = function(inImg, outImg, M, inOrig, outOrig) { + var w = outImg.size.x, h = outImg.size.y, iw = inImg.size.x, ih = inImg.size.y; + var across = vec2.clone([M[0], M[2]]); + var down = vec2.clone([M[1], M[3]]); + var defaultValue = 0; + + var p0 = vec2.subtract(inOrig, mat2.xVec2(M, outOrig, vec2.clone()), vec2.clone()); + + var min_x = p0[0], min_y = p0[1]; + var max_x = min_x, max_y = min_y; + var p, i, j; + + var sampleFunc = ImageWrapper.sample; + + if (across[0] < 0) + min_x += w * across[0]; + else + max_x += w * across[0]; + + if (down[0] < 0) + min_x += h * down[0]; + else + max_x += h * down[0]; + + if (across[1] < 0) + min_y += w * across[1]; + else + max_y += w * across[1]; + + if (down[1] < 0) + min_y += h * down[1]; + else + max_y += h * down[1]; + + var carrigeReturn = vec2.subtract(down, vec2.scale(across, w, vec2.clone()), vec2.clone()); + + if (min_x >= 0 && min_y >= 0 && max_x < iw - 1 && max_y < ih - 1) { + p = p0; + for ( i = 0; i < h; ++i, vec2.add(p, carrigeReturn)) + for ( j = 0; j < w; ++j, vec2.add(p, across)) + outImg.set(j, i, sampleFunc(inImg, p[0], p[1])); + return 0; + } else { + var x_bound = iw - 1; + var y_bound = ih - 1; + var count = 0; + p = p0; + for ( i = 0; i < h; ++i, vec2.add(p, carrigeReturn)) { + for ( j = 0; j < w; ++j, vec2.add(p, across)) { + if (0 <= p[0] && 0 <= p[1] && p[0] < x_bound && p[1] < y_bound) { outImg.set(j, i, sampleFunc(inImg, p[0], p[1])); - return 0; - } else { - var x_bound = iw - 1; - var y_bound = ih - 1; - var count = 0; - p = p0; - for ( i = 0; i < h; ++i, vec2.add(p, carrigeReturn)) { - for ( j = 0; j < w; ++j, vec2.add(p, across)) { - if (0 <= p[0] && 0 <= p[1] && p[0] < x_bound && p[1] < y_bound) { - outImg.set(j, i, sampleFunc(inImg, p[0], p[1])); - } else { - outImg.set(j, i, defaultValue); ++count; - } + } else { + outImg.set(j, i, defaultValue); ++count; } } - return count; - } - }; - - /** - * Performs bilinear sampling - * @param inImg Image to extract sample from - * @param x the x-coordinate - * @param y the y-coordinate - * @returns the sampled value - * @see cvd/vision.h - */ - ImageWrapper.sample = function(inImg, x, y) { - var lx = Math.floor(x); - var ly = Math.floor(y); - var w = inImg.size.x; - var base = ly * inImg.size.x + lx; - var a = inImg.data[base + 0]; - var b = inImg.data[base + 1]; - var c = inImg.data[base + w]; - var d = inImg.data[base + w + 1]; - var e = a - b; - x -= lx; - y -= ly; - - var result = Math.floor(x * (y * (e - c + d) - e) + y * (c - a) + a); - return result; - }; - - /** - * Initializes a given array. Sets each element to zero. - * @param array {Array} The array to initialize - */ - ImageWrapper.clearArray = function(array) { - var l = array.length; - while (l--) { - array[l] = 0; } - }; - - /** - * Creates a {SubImage} from the current image ({this}). - * @param from {ImageRef} The position where to start the {SubImage} from. (top-left corner) - * @param size {ImageRef} The size of the resulting image - * @returns {SubImage} A shared part of the original image - */ - ImageWrapper.prototype.subImage = function(from, size) { - return new SubImage(from, size, this); - }; - - /** - * Creates an {ImageWrapper) and copies the needed underlying image-data area - * @param imageWrapper {ImageWrapper} The target {ImageWrapper} where the data should be copied - * @param from {ImageRef} The location where to copy from (top-left location) - */ - ImageWrapper.prototype.subImageAsCopy = function(imageWrapper, from) { - var sizeY = imageWrapper.size.y, sizeX = imageWrapper.size.x; - var x, y; - for ( x = 0; x < sizeX; x++) { - for ( y = 0; y < sizeY; y++) { - imageWrapper.data[y * sizeX + x] = this.data[(from.y + y) * this.size.x + from.x + x]; - } + return count; + } +}; + +/** + * Performs bilinear sampling + * @param inImg Image to extract sample from + * @param x the x-coordinate + * @param y the y-coordinate + * @returns the sampled value + * @see cvd/vision.h + */ +ImageWrapper.sample = function(inImg, x, y) { + var lx = Math.floor(x); + var ly = Math.floor(y); + var w = inImg.size.x; + var base = ly * inImg.size.x + lx; + var a = inImg.data[base + 0]; + var b = inImg.data[base + 1]; + var c = inImg.data[base + w]; + var d = inImg.data[base + w + 1]; + var e = a - b; + x -= lx; + y -= ly; + + var result = Math.floor(x * (y * (e - c + d) - e) + y * (c - a) + a); + return result; +}; + +/** + * Initializes a given array. Sets each element to zero. + * @param array {Array} The array to initialize + */ +ImageWrapper.clearArray = function(array) { + var l = array.length; + while (l--) { + array[l] = 0; + } +}; + +/** + * Creates a {SubImage} from the current image ({this}). + * @param from {ImageRef} The position where to start the {SubImage} from. (top-left corner) + * @param size {ImageRef} The size of the resulting image + * @returns {SubImage} A shared part of the original image + */ +ImageWrapper.prototype.subImage = function(from, size) { + return new SubImage(from, size, this); +}; + +/** + * Creates an {ImageWrapper) and copies the needed underlying image-data area + * @param imageWrapper {ImageWrapper} The target {ImageWrapper} where the data should be copied + * @param from {ImageRef} The location where to copy from (top-left location) + */ +ImageWrapper.prototype.subImageAsCopy = function(imageWrapper, from) { + var sizeY = imageWrapper.size.y, sizeX = imageWrapper.size.x; + var x, y; + for ( x = 0; x < sizeX; x++) { + for ( y = 0; y < sizeY; y++) { + imageWrapper.data[y * sizeX + x] = this.data[(from.y + y) * this.size.x + from.x + x]; } - }; + } +}; - ImageWrapper.prototype.copyTo = function(imageWrapper) { - var length = this.data.length, srcData = this.data, dstData = imageWrapper.data; +ImageWrapper.prototype.copyTo = function(imageWrapper) { + var length = this.data.length, srcData = this.data, dstData = imageWrapper.data; - while (length--) { - dstData[length] = srcData[length]; - } - }; - - /** - * Retrieves a given pixel position from the image - * @param x {Number} The x-position - * @param y {Number} The y-position - * @returns {Number} The grayscale value at the pixel-position - */ - ImageWrapper.prototype.get = function(x, y) { - return this.data[y * this.size.x + x]; - }; - - /** - * Retrieves a given pixel position from the image - * @param x {Number} The x-position - * @param y {Number} The y-position - * @returns {Number} The grayscale value at the pixel-position - */ - ImageWrapper.prototype.getSafe = function(x, y) { - var i; - - if (!this.indexMapping) { - this.indexMapping = { - x : [], - y : [] - }; - for (i = 0; i < this.size.x; i++) { - this.indexMapping.x[i] = i; - this.indexMapping.x[i + this.size.x] = i; - } - for (i = 0; i < this.size.y; i++) { - this.indexMapping.y[i] = i; - this.indexMapping.y[i + this.size.y] = i; - } - } - return this.data[(this.indexMapping.y[y + this.size.y]) * this.size.x + this.indexMapping.x[x + this.size.x]]; - }; - - /** - * Sets a given pixel position in the image - * @param x {Number} The x-position - * @param y {Number} The y-position - * @param value {Number} The grayscale value to set - * @returns {ImageWrapper} The Image itself (for possible chaining) - */ - ImageWrapper.prototype.set = function(x, y, value) { - this.data[y * this.size.x + x] = value; - return this; - }; - - /** - * Sets the border of the image (1 pixel) to zero - */ - ImageWrapper.prototype.zeroBorder = function() { - var i, width = this.size.x, height = this.size.y, data = this.data; - for ( i = 0; i < width; i++) { - data[i] = data[(height - 1) * width + i] = 0; + while (length--) { + dstData[length] = srcData[length]; + } +}; + +/** + * Retrieves a given pixel position from the image + * @param x {Number} The x-position + * @param y {Number} The y-position + * @returns {Number} The grayscale value at the pixel-position + */ +ImageWrapper.prototype.get = function(x, y) { + return this.data[y * this.size.x + x]; +}; + +/** + * Retrieves a given pixel position from the image + * @param x {Number} The x-position + * @param y {Number} The y-position + * @returns {Number} The grayscale value at the pixel-position + */ +ImageWrapper.prototype.getSafe = function(x, y) { + var i; + + if (!this.indexMapping) { + this.indexMapping = { + x : [], + y : [] + }; + for (i = 0; i < this.size.x; i++) { + this.indexMapping.x[i] = i; + this.indexMapping.x[i + this.size.x] = i; } - for ( i = 1; i < height - 1; i++) { - data[i * width] = data[i * width + (width - 1)] = 0; + for (i = 0; i < this.size.y; i++) { + this.indexMapping.y[i] = i; + this.indexMapping.y[i + this.size.y] = i; } - }; + } + return this.data[(this.indexMapping.y[y + this.size.y]) * this.size.x + this.indexMapping.x[x + this.size.x]]; +}; + +/** + * Sets a given pixel position in the image + * @param x {Number} The x-position + * @param y {Number} The y-position + * @param value {Number} The grayscale value to set + * @returns {ImageWrapper} The Image itself (for possible chaining) + */ +ImageWrapper.prototype.set = function(x, y, value) { + this.data[y * this.size.x + x] = value; + return this; +}; + +/** + * Sets the border of the image (1 pixel) to zero + */ +ImageWrapper.prototype.zeroBorder = function() { + var i, width = this.size.x, height = this.size.y, data = this.data; + for ( i = 0; i < width; i++) { + data[i] = data[(height - 1) * width + i] = 0; + } + for ( i = 1; i < height - 1; i++) { + data[i * width] = data[i * width + (width - 1)] = 0; + } +}; - /** - * Inverts a binary image in place - */ - ImageWrapper.prototype.invert = function() { - var data = this.data, length = data.length; +/** + * Inverts a binary image in place + */ +ImageWrapper.prototype.invert = function() { + var data = this.data, length = data.length; - while (length--) { - data[length] = data[length] ? 0 : 1; - } + while (length--) { + data[length] = data[length] ? 0 : 1; + } + +}; - }; - - ImageWrapper.prototype.convolve = function(kernel) { - var x, y, kx, ky, kSize = (kernel.length / 2) | 0, accu = 0; - for ( y = 0; y < this.size.y; y++) { - for ( x = 0; x < this.size.x; x++) { - accu = 0; - for ( ky = -kSize; ky <= kSize; ky++) { - for ( kx = -kSize; kx <= kSize; kx++) { - accu += kernel[ky+kSize][kx + kSize] * this.getSafe(x + kx, y + ky); - } +ImageWrapper.prototype.convolve = function(kernel) { + var x, y, kx, ky, kSize = (kernel.length / 2) | 0, accu = 0; + for ( y = 0; y < this.size.y; y++) { + for ( x = 0; x < this.size.x; x++) { + accu = 0; + for ( ky = -kSize; ky <= kSize; ky++) { + for ( kx = -kSize; kx <= kSize; kx++) { + accu += kernel[ky+kSize][kx + kSize] * this.getSafe(x + kx, y + ky); } - this.data[y * this.size.x + x] = accu; } + this.data[y * this.size.x + x] = accu; } - }; - - ImageWrapper.prototype.moments = function(labelcount) { - var data = this.data, - x, - y, - height = this.size.y, - width = this.size.x, - val, - ysq, - labelsum = [], - i, - label, - mu11, - mu02, - mu20, - x_, - y_, - tmp, - result = [], - PI = Math.PI, - PI_4 = PI / 4; - - if (labelcount <= 0) { - return result; - } + } +}; + +ImageWrapper.prototype.moments = function(labelcount) { + var data = this.data, + x, + y, + height = this.size.y, + width = this.size.x, + val, + ysq, + labelsum = [], + i, + label, + mu11, + mu02, + mu20, + x_, + y_, + tmp, + result = [], + PI = Math.PI, + PI_4 = PI / 4; + + if (labelcount <= 0) { + return result; + } - for ( i = 0; i < labelcount; i++) { - labelsum[i] = { - m00 : 0, - m01 : 0, - m10 : 0, - m11 : 0, - m02 : 0, - m20 : 0, - theta : 0, - rad : 0 - }; - } + for ( i = 0; i < labelcount; i++) { + labelsum[i] = { + m00 : 0, + m01 : 0, + m10 : 0, + m11 : 0, + m02 : 0, + m20 : 0, + theta : 0, + rad : 0 + }; + } - for ( y = 0; y < height; y++) { - ysq = y * y; - for ( x = 0; x < width; x++) { - val = data[y * width + x]; - if (val > 0) { - label = labelsum[val - 1]; - label.m00 += 1; - label.m01 += y; - label.m10 += x; - label.m11 += x * y; - label.m02 += ysq; - label.m20 += x * x; - } + for ( y = 0; y < height; y++) { + ysq = y * y; + for ( x = 0; x < width; x++) { + val = data[y * width + x]; + if (val > 0) { + label = labelsum[val - 1]; + label.m00 += 1; + label.m01 += y; + label.m10 += x; + label.m11 += x * y; + label.m02 += ysq; + label.m20 += x * x; } } + } - for ( i = 0; i < labelcount; i++) { - label = labelsum[i]; - if (!isNaN(label.m00) && label.m00 !== 0) { - x_ = label.m10 / label.m00; - y_ = label.m01 / label.m00; - mu11 = label.m11 / label.m00 - x_ * y_; - mu02 = label.m02 / label.m00 - y_ * y_; - mu20 = label.m20 / label.m00 - x_ * x_; - tmp = (mu02 - mu20) / (2 * mu11); - tmp = 0.5 * Math.atan(tmp) + (mu11 >= 0 ? PI_4 : -PI_4 ) + PI; - label.theta = (tmp * 180 / PI + 90) % 180 - 90; - if (label.theta < 0) { - label.theta += 180; - } - label.rad = tmp > PI ? tmp - PI : tmp; - label.vec = vec2.clone([Math.cos(tmp), Math.sin(tmp)]); - result.push(label); + for ( i = 0; i < labelcount; i++) { + label = labelsum[i]; + if (!isNaN(label.m00) && label.m00 !== 0) { + x_ = label.m10 / label.m00; + y_ = label.m01 / label.m00; + mu11 = label.m11 / label.m00 - x_ * y_; + mu02 = label.m02 / label.m00 - y_ * y_; + mu20 = label.m20 / label.m00 - x_ * x_; + tmp = (mu02 - mu20) / (2 * mu11); + tmp = 0.5 * Math.atan(tmp) + (mu11 >= 0 ? PI_4 : -PI_4 ) + PI; + label.theta = (tmp * 180 / PI + 90) % 180 - 90; + if (label.theta < 0) { + label.theta += 180; } + label.rad = tmp > PI ? tmp - PI : tmp; + label.vec = vec2.clone([Math.cos(tmp), Math.sin(tmp)]); + result.push(label); } + } - return result; - }; - - /** - * Displays the {ImageWrapper} in a given canvas - * @param canvas {Canvas} The canvas element to write to - * @param scale {Number} Scale which is applied to each pixel-value - */ - ImageWrapper.prototype.show = function(canvas, scale) { - var ctx, - frame, - data, - current, - pixel, - x, - y; - - if (!scale) { - scale = 1.0; - } - ctx = canvas.getContext('2d'); - canvas.width = this.size.x; - canvas.height = this.size.y; - frame = ctx.getImageData(0, 0, canvas.width, canvas.height); - data = frame.data; - current = 0; - for (y = 0; y < this.size.y; y++) { - for (x = 0; x < this.size.x; x++) { - pixel = y * this.size.x + x; - current = this.get(x, y) * scale; - data[pixel * 4 + 0] = current; - data[pixel * 4 + 1] = current; - data[pixel * 4 + 2] = current; - data[pixel * 4 + 3] = 255; - } - } - //frame.data = data; - ctx.putImageData(frame, 0, 0); - }; - - /** - * Displays the {SubImage} in a given canvas - * @param canvas {Canvas} The canvas element to write to - * @param scale {Number} Scale which is applied to each pixel-value - */ - ImageWrapper.prototype.overlay = function(canvas, scale, from) { - if (!scale || scale < 0 || scale > 360) { - scale = 360; - } - var hsv = [0, 1, 1]; - var rgb = [0, 0, 0]; - var whiteRgb = [255, 255, 255]; - var blackRgb = [0, 0, 0]; - var result = []; - var ctx = canvas.getContext('2d'); - var frame = ctx.getImageData(from.x, from.y, this.size.x, this.size.y); - var data = frame.data; - var length = this.data.length; - while (length--) { - hsv[0] = this.data[length] * scale; - result = hsv[0] <= 0 ? whiteRgb : hsv[0] >= 360 ? blackRgb : CVUtils.hsv2rgb(hsv, rgb); - data[length * 4 + 0] = result[0]; - data[length * 4 + 1] = result[1]; - data[length * 4 + 2] = result[2]; - data[length * 4 + 3] = 255; + return result; +}; + +/** + * Displays the {ImageWrapper} in a given canvas + * @param canvas {Canvas} The canvas element to write to + * @param scale {Number} Scale which is applied to each pixel-value + */ +ImageWrapper.prototype.show = function(canvas, scale) { + var ctx, + frame, + data, + current, + pixel, + x, + y; + + if (!scale) { + scale = 1.0; + } + ctx = canvas.getContext('2d'); + canvas.width = this.size.x; + canvas.height = this.size.y; + frame = ctx.getImageData(0, 0, canvas.width, canvas.height); + data = frame.data; + current = 0; + for (y = 0; y < this.size.y; y++) { + for (x = 0; x < this.size.x; x++) { + pixel = y * this.size.x + x; + current = this.get(x, y) * scale; + data[pixel * 4 + 0] = current; + data[pixel * 4 + 1] = current; + data[pixel * 4 + 2] = current; + data[pixel * 4 + 3] = 255; } - ctx.putImageData(frame, from.x, from.y); - }; + } + //frame.data = data; + ctx.putImageData(frame, 0, 0); +}; + +/** + * Displays the {SubImage} in a given canvas + * @param canvas {Canvas} The canvas element to write to + * @param scale {Number} Scale which is applied to each pixel-value + */ +ImageWrapper.prototype.overlay = function(canvas, scale, from) { + if (!scale || scale < 0 || scale > 360) { + scale = 360; + } + var hsv = [0, 1, 1]; + var rgb = [0, 0, 0]; + var whiteRgb = [255, 255, 255]; + var blackRgb = [0, 0, 0]; + var result = []; + var ctx = canvas.getContext('2d'); + var frame = ctx.getImageData(from.x, from.y, this.size.x, this.size.y); + var data = frame.data; + var length = this.data.length; + while (length--) { + hsv[0] = this.data[length] * scale; + result = hsv[0] <= 0 ? whiteRgb : hsv[0] >= 360 ? blackRgb : CVUtils.hsv2rgb(hsv, rgb); + data[length * 4 + 0] = result[0]; + data[length * 4 + 1] = result[1]; + data[length * 4 + 2] = result[2]; + data[length * 4 + 3] = 255; + } + ctx.putImageData(frame, from.x, from.y); +}; - return (ImageWrapper); -}); \ No newline at end of file +export default ImageWrapper; diff --git a/src/input_stream.js b/src/input_stream.js index 182d8736..33a5629d 100644 --- a/src/input_stream.js +++ b/src/input_stream.js @@ -1,317 +1,312 @@ -/* jshint undef: true, unused: true, browser:true, devel: true */ -/* global define */ - -define(["image_loader"], function(ImageLoader) { - "use strict"; - - var InputStream = {}; - InputStream.createVideoStream = function(video) { - var that = {}, - _config = null, - _eventNames = ['canrecord', 'ended'], - _eventHandlers = {}, - _calculatedWidth, - _calculatedHeight, - _topRight = {x: 0, y: 0}, - _canvasSize = {x: 0, y: 0}; - - function initSize() { - var width = video.videoWidth, - height = video.videoHeight; - - _calculatedWidth = _config.size ? width/height > 1 ? _config.size : Math.floor((width/height) * _config.size) : width; - _calculatedHeight = _config.size ? width/height > 1 ? Math.floor((height/width) * _config.size) : _config.size : height; - - _canvasSize.x = _calculatedWidth; - _canvasSize.y = _calculatedHeight; - } +import ImageLoader from './image_loader'; + +var InputStream = {}; +InputStream.createVideoStream = function(video) { + var that = {}, + _config = null, + _eventNames = ['canrecord', 'ended'], + _eventHandlers = {}, + _calculatedWidth, + _calculatedHeight, + _topRight = {x: 0, y: 0}, + _canvasSize = {x: 0, y: 0}; + + function initSize() { + var width = video.videoWidth, + height = video.videoHeight; + + _calculatedWidth = _config.size ? width/height > 1 ? _config.size : Math.floor((width/height) * _config.size) : width; + _calculatedHeight = _config.size ? width/height > 1 ? Math.floor((height/width) * _config.size) : _config.size : height; + + _canvasSize.x = _calculatedWidth; + _canvasSize.y = _calculatedHeight; + } + + that.getRealWidth = function() { + return video.videoWidth; + }; - that.getRealWidth = function() { - return video.videoWidth; - }; - - that.getRealHeight = function() { - return video.videoHeight; - }; - - that.getWidth = function() { - return _calculatedWidth; - }; - - that.getHeight = function() { - return _calculatedHeight; - }; - - that.setWidth = function(width) { - _calculatedWidth = width; - }; - - that.setHeight = function(height) { - _calculatedHeight = height; - }; - - that.setInputStream = function(config) { - _config = config; - video.src = (typeof config.src !== 'undefined') ? config.src : ''; - }; - - that.ended = function() { - return video.ended; - }; - - that.getConfig = function() { - return _config; - }; - - that.setAttribute = function(name, value) { - video.setAttribute(name, value); - }; - - that.pause = function() { - video.pause(); - }; - - that.play = function() { - video.play(); - }; - - that.setCurrentTime = function(time) { - if (_config.type !== "LiveStream") - video.currentTime = time; - }; - - that.addEventListener = function(event, f, bool) { - if (_eventNames.indexOf(event) !== -1) { - if (!_eventHandlers[event]) { - _eventHandlers[event] = []; - } - _eventHandlers[event].push(f); - } else { - video.addEventListener(event, f, bool); - } - }; - - that.clearEventHandlers = function() { - _eventNames.forEach(function(eventName) { - var handlers = _eventHandlers[eventName]; - if (handlers && handlers.length > 0) { - handlers.forEach(function(handler) { - video.removeEventListener(eventName, handler); - }); - } - }); - }; - - that.trigger = function(eventName, args) { - var j, - handlers = _eventHandlers[eventName]; - - if (eventName === 'canrecord') { - initSize(); - } - if (handlers && handlers.length > 0) { - for ( j = 0; j < handlers.length; j++) { - handlers[j].apply(that, args); - } + that.getRealHeight = function() { + return video.videoHeight; + }; + + that.getWidth = function() { + return _calculatedWidth; + }; + + that.getHeight = function() { + return _calculatedHeight; + }; + + that.setWidth = function(width) { + _calculatedWidth = width; + }; + + that.setHeight = function(height) { + _calculatedHeight = height; + }; + + that.setInputStream = function(config) { + _config = config; + video.src = (typeof config.src !== 'undefined') ? config.src : ''; + }; + + that.ended = function() { + return video.ended; + }; + + that.getConfig = function() { + return _config; + }; + + that.setAttribute = function(name, value) { + video.setAttribute(name, value); + }; + + that.pause = function() { + video.pause(); + }; + + that.play = function() { + video.play(); + }; + + that.setCurrentTime = function(time) { + if (_config.type !== "LiveStream") + video.currentTime = time; + }; + + that.addEventListener = function(event, f, bool) { + if (_eventNames.indexOf(event) !== -1) { + if (!_eventHandlers[event]) { + _eventHandlers[event] = []; } - }; - - that.setTopRight = function(topRight) { - _topRight.x = topRight.x; - _topRight.y = topRight.y; - }; - - that.getTopRight = function() { - return _topRight; - }; - - that.setCanvasSize = function(size) { - _canvasSize.x = size.x; - _canvasSize.y = size.y; - }; - - that.getCanvasSize = function() { - return _canvasSize; - }; - - that.getFrame = function() { - return video; - }; - - return that; - }; - - InputStream.createLiveStream = function(video) { - video.setAttribute("autoplay", true); - var that = InputStream.createVideoStream(video); - - that.ended = function() { - return false; - }; - - return that; - }; - - InputStream.createImageStream = function() { - var that = {}; - var _config = null; - - var width = 0, - height = 0, - frameIdx = 0, - paused = true, - loaded = false, - imgArray = null, - size = 0, - offset = 1, - baseUrl = null, - ended = false, - calculatedWidth, - calculatedHeight, - _eventNames = ['canrecord', 'ended'], - _eventHandlers = {}, - _topRight = {x: 0, y: 0}, - _canvasSize = {x: 0, y: 0}; - - function loadImages() { - loaded = false; - ImageLoader.load(baseUrl, function(imgs) { - imgArray = imgs; - width = imgs[0].width; - height = imgs[0].height; - calculatedWidth = _config.size ? width/height > 1 ? _config.size : Math.floor((width/height) * _config.size) : width; - calculatedHeight = _config.size ? width/height > 1 ? Math.floor((height/width) * _config.size) : _config.size : height; - _canvasSize.x = calculatedWidth; - _canvasSize.y = calculatedHeight; - loaded = true; - frameIdx = 0; - setTimeout(function() { - publishEvent("canrecord", []); - }, 0); - }, offset, size, _config.sequence); + _eventHandlers[event].push(f); + } else { + video.addEventListener(event, f, bool); } + }; - function publishEvent(eventName, args) { - var j, - handlers = _eventHandlers[eventName]; - + that.clearEventHandlers = function() { + _eventNames.forEach(function(eventName) { + var handlers = _eventHandlers[eventName]; if (handlers && handlers.length > 0) { - for ( j = 0; j < handlers.length; j++) { - handlers[j].apply(that, args); - } + handlers.forEach(function(handler) { + video.removeEventListener(eventName, handler); + }); + } + }); + }; + + that.trigger = function(eventName, args) { + var j, + handlers = _eventHandlers[eventName]; + + if (eventName === 'canrecord') { + initSize(); + } + if (handlers && handlers.length > 0) { + for ( j = 0; j < handlers.length; j++) { + handlers[j].apply(that, args); } } + }; + that.setTopRight = function(topRight) { + _topRight.x = topRight.x; + _topRight.y = topRight.y; + }; - that.trigger = publishEvent; + that.getTopRight = function() { + return _topRight; + }; - that.getWidth = function() { - return calculatedWidth; - }; + that.setCanvasSize = function(size) { + _canvasSize.x = size.x; + _canvasSize.y = size.y; + }; - that.getHeight = function() { - return calculatedHeight; - }; + that.getCanvasSize = function() { + return _canvasSize; + }; - that.setWidth = function(width) { - calculatedWidth = width; - }; + that.getFrame = function() { + return video; + }; - that.setHeight = function(height) { - calculatedHeight = height; - }; + return that; +}; - that.getRealWidth = function() { - return width; - }; +InputStream.createLiveStream = function(video) { + video.setAttribute("autoplay", true); + var that = InputStream.createVideoStream(video); - that.getRealHeight = function() { - return height; - }; + that.ended = function() { + return false; + }; - that.setInputStream = function(stream) { - _config = stream; - if (stream.sequence === false) { - baseUrl = stream.src; - size = 1; - } else { - baseUrl = stream.src; - size = stream.length; + return that; +}; + +InputStream.createImageStream = function() { + var that = {}; + var _config = null; + + var width = 0, + height = 0, + frameIdx = 0, + paused = true, + loaded = false, + imgArray = null, + size = 0, + offset = 1, + baseUrl = null, + ended = false, + calculatedWidth, + calculatedHeight, + _eventNames = ['canrecord', 'ended'], + _eventHandlers = {}, + _topRight = {x: 0, y: 0}, + _canvasSize = {x: 0, y: 0}; + + function loadImages() { + loaded = false; + ImageLoader.load(baseUrl, function(imgs) { + imgArray = imgs; + width = imgs[0].width; + height = imgs[0].height; + calculatedWidth = _config.size ? width/height > 1 ? _config.size : Math.floor((width/height) * _config.size) : width; + calculatedHeight = _config.size ? width/height > 1 ? Math.floor((height/width) * _config.size) : _config.size : height; + _canvasSize.x = calculatedWidth; + _canvasSize.y = calculatedHeight; + loaded = true; + frameIdx = 0; + setTimeout(function() { + publishEvent("canrecord", []); + }, 0); + }, offset, size, _config.sequence); + } + + function publishEvent(eventName, args) { + var j, + handlers = _eventHandlers[eventName]; + + if (handlers && handlers.length > 0) { + for ( j = 0; j < handlers.length; j++) { + handlers[j].apply(that, args); } - loadImages(); - }; + } + } - that.ended = function() { - return ended; - }; - that.setAttribute = function() {}; + that.trigger = publishEvent; - that.getConfig = function() { - return _config; - }; + that.getWidth = function() { + return calculatedWidth; + }; - that.pause = function() { - paused = true; - }; + that.getHeight = function() { + return calculatedHeight; + }; - that.play = function() { - paused = false; - }; + that.setWidth = function(width) { + calculatedWidth = width; + }; - that.setCurrentTime = function(time) { - frameIdx = time; - }; + that.setHeight = function(height) { + calculatedHeight = height; + }; - that.addEventListener = function(event, f) { - if (_eventNames.indexOf(event) !== -1) { - if (!_eventHandlers[event]) { - _eventHandlers[event] = []; - } - _eventHandlers[event].push(f); - } - }; - - that.setTopRight = function(topRight) { - _topRight.x = topRight.x; - _topRight.y = topRight.y; - }; - - that.getTopRight = function() { - return _topRight; - }; - - that.setCanvasSize = function(size) { - _canvasSize.x = size.x; - _canvasSize.y = size.y; - }; - - that.getCanvasSize = function() { - return _canvasSize; - }; - - that.getFrame = function() { - var frame; - - if (!loaded){ - return null; - } - if (!paused) { - frame = imgArray[frameIdx]; - if (frameIdx < (size - 1)) { - frameIdx++; - } else { - setTimeout(function() { - ended = true; - publishEvent("ended", []); - }, 0); - } + that.getRealWidth = function() { + return width; + }; + + that.getRealHeight = function() { + return height; + }; + + that.setInputStream = function(stream) { + _config = stream; + if (stream.sequence === false) { + baseUrl = stream.src; + size = 1; + } else { + baseUrl = stream.src; + size = stream.length; + } + loadImages(); + }; + + that.ended = function() { + return ended; + }; + + that.setAttribute = function() {}; + + that.getConfig = function() { + return _config; + }; + + that.pause = function() { + paused = true; + }; + + that.play = function() { + paused = false; + }; + + that.setCurrentTime = function(time) { + frameIdx = time; + }; + + that.addEventListener = function(event, f) { + if (_eventNames.indexOf(event) !== -1) { + if (!_eventHandlers[event]) { + _eventHandlers[event] = []; } - return frame; - }; + _eventHandlers[event].push(f); + } + }; + + that.setTopRight = function(topRight) { + _topRight.x = topRight.x; + _topRight.y = topRight.y; + }; + + that.getTopRight = function() { + return _topRight; + }; + + that.setCanvasSize = function(size) { + _canvasSize.x = size.x; + _canvasSize.y = size.y; + }; - return that; + that.getCanvasSize = function() { + return _canvasSize; }; - return (InputStream); -}); + that.getFrame = function() { + var frame; + + if (!loaded){ + return null; + } + if (!paused) { + frame = imgArray[frameIdx]; + if (frameIdx < (size - 1)) { + frameIdx++; + } else { + setTimeout(function() { + ended = true; + publishEvent("ended", []); + }, 0); + } + } + return frame; + }; + + return that; +}; + +export default InputStream; diff --git a/src/quagga.js b/src/quagga.js index 9fc0be7b..bbf2c5f1 100644 --- a/src/quagga.js +++ b/src/quagga.js @@ -1,504 +1,490 @@ -/* jshint undef: true, unused: true, browser:true, devel: true, evil: true */ -/* global define */ -define([ - "input_stream", - "image_wrapper", - "barcode_locator", - "barcode_decoder", - "frame_grabber", - "html_utils", - "config", - "events", - "camera_access", - "image_debug", - "gl-matrix", - "result_collector"], -function(InputStream, - ImageWrapper, - BarcodeLocator, - BarcodeDecoder, - FrameGrabber, - HtmlUtils, - _config, - Events, - CameraAccess, - ImageDebug, - glMatrix, - ResultCollector) { - "use strict"; - - var _inputStream, - _framegrabber, - _stopped, - _canvasContainer = { - ctx : { - image : null, - overlay : null - }, - dom : { - image : null, - overlay : null - } +import TypeDefs from './typedefs'; +import InputStream from './input_stream'; +import ImageWrapper from './image_wrapper'; +import BarcodeLocator from './barcode_locator'; +import BarcodeDecoder from './barcode_decoder'; +import FrameGrabber from './frame_grabber'; +import Config from './config'; +import Events from './events'; +import CameraAccess from './camera_access'; +import ImageDebug from './image_debug'; +import {vec2} from 'gl-matrix'; +import ResultCollector from './result_collector'; + +const merge = require('lodash/object/merge'); + +var _inputStream, + _framegrabber, + _stopped, + _canvasContainer = { + ctx : { + image : null, + overlay : null }, - _inputImageWrapper, - _boxSize, - _decoder, - _workerPool = [], - _onUIThread = true, - vec2 = glMatrix.vec2, - _resultCollector; - - function initializeData(imageWrapper) { - initBuffers(imageWrapper); - _decoder = BarcodeDecoder.create(_config.decoder, _inputImageWrapper); - } - - function initConfig() { - if (typeof document !== "undefined") { - var vis = [{ - node: document.querySelector("div[data-controls]"), - prop: _config.controls - }, { - node: _canvasContainer.dom.overlay, - prop: _config.visual.show - }]; - - for (var i = 0; i < vis.length; i++) { - if (vis[i].node) { - if (vis[i].prop === true) { - vis[i].node.style.display = "block"; - } else { - vis[i].node.style.display = "none"; - } + dom : { + image : null, + overlay : null + } + }, + _inputImageWrapper, + _boxSize, + _decoder, + _workerPool = [], + _onUIThread = true, + _resultCollector, + _config = {}; + +function initializeData(imageWrapper) { + initBuffers(imageWrapper); + _decoder = BarcodeDecoder.create(_config.decoder, _inputImageWrapper); +} + +function initConfig() { + if (typeof document !== "undefined") { + var vis = [{ + node: document.querySelector("div[data-controls]"), + prop: _config.controls + }, { + node: _canvasContainer.dom.overlay, + prop: _config.visual.show + }]; + + for (var i = 0; i < vis.length; i++) { + if (vis[i].node) { + if (vis[i].prop === true) { + vis[i].node.style.display = "block"; + } else { + vis[i].node.style.display = "none"; } } } } - - function initInputStream(cb) { - var video; - if (_config.inputStream.type == "VideoStream") { - video = document.createElement("video"); - _inputStream = InputStream.createVideoStream(video); - } else if (_config.inputStream.type == "ImageStream") { - _inputStream = InputStream.createImageStream(); - } else if (_config.inputStream.type == "LiveStream") { - var $viewport = document.querySelector("#interactive.viewport"); - if ($viewport) { - video = $viewport.querySelector("video"); - if (!video) { - video = document.createElement("video"); - $viewport.appendChild(video); - } +} + +function initInputStream(cb) { + var video; + if (_config.inputStream.type == "VideoStream") { + video = document.createElement("video"); + _inputStream = InputStream.createVideoStream(video); + } else if (_config.inputStream.type == "ImageStream") { + _inputStream = InputStream.createImageStream(); + } else if (_config.inputStream.type == "LiveStream") { + var $viewport = document.querySelector("#interactive.viewport"); + if ($viewport) { + video = $viewport.querySelector("video"); + if (!video) { + video = document.createElement("video"); + $viewport.appendChild(video); } - _inputStream = InputStream.createLiveStream(video); - CameraAccess.request(video, _config.inputStream.constraints, function(err) { - if (!err) { - _inputStream.trigger("canrecord"); - } else { - return cb(err); - } - }); } - - _inputStream.setAttribute("preload", "auto"); - _inputStream.setAttribute("autoplay", true); - _inputStream.setInputStream(_config.inputStream); - _inputStream.addEventListener("canrecord", canRecord.bind(undefined, cb)); + _inputStream = InputStream.createLiveStream(video); + CameraAccess.request(video, _config.inputStream.constraints, function(err) { + if (!err) { + _inputStream.trigger("canrecord"); + } else { + return cb(err); + } + }); } - function canRecord(cb) { - BarcodeLocator.checkImageConstraints(_inputStream, _config.locator); - initCanvas(); - _framegrabber = FrameGrabber.create(_inputStream, _canvasContainer.dom.image); - initConfig(); - - if (_config.numOfWorkers > 0) { - initWorkers(function() { - console.log("Workers created"); - ready(cb); - }); - } else { - initializeData(); + _inputStream.setAttribute("preload", "auto"); + _inputStream.setAttribute("autoplay", true); + _inputStream.setInputStream(_config.inputStream); + _inputStream.addEventListener("canrecord", canRecord.bind(undefined, cb)); +} + +function canRecord(cb) { + BarcodeLocator.checkImageConstraints(_inputStream, _config.locator); + initCanvas(); + _framegrabber = FrameGrabber.create(_inputStream, _canvasContainer.dom.image); + initConfig(); + + if (_config.numOfWorkers > 0) { + initWorkers(function() { + console.log("Workers created"); ready(cb); - } - } - - function ready(cb){ - _inputStream.play(); - cb(); + }); + } else { + initializeData(); + ready(cb); } - - function initCanvas() { - if (typeof document !== "undefined") { - var $viewport = document.querySelector("#interactive.viewport"); - _canvasContainer.dom.image = document.querySelector("canvas.imgBuffer"); - if (!_canvasContainer.dom.image) { - _canvasContainer.dom.image = document.createElement("canvas"); - _canvasContainer.dom.image.className = "imgBuffer"; - if ($viewport && _config.inputStream.type == "ImageStream") { - $viewport.appendChild(_canvasContainer.dom.image); - } +} + +function ready(cb){ + _inputStream.play(); + cb(); +} + +function initCanvas() { + if (typeof document !== "undefined") { + var $viewport = document.querySelector("#interactive.viewport"); + _canvasContainer.dom.image = document.querySelector("canvas.imgBuffer"); + if (!_canvasContainer.dom.image) { + _canvasContainer.dom.image = document.createElement("canvas"); + _canvasContainer.dom.image.className = "imgBuffer"; + if ($viewport && _config.inputStream.type == "ImageStream") { + $viewport.appendChild(_canvasContainer.dom.image); } - _canvasContainer.ctx.image = _canvasContainer.dom.image.getContext("2d"); - _canvasContainer.dom.image.width = _inputStream.getCanvasSize().x; - _canvasContainer.dom.image.height = _inputStream.getCanvasSize().y; - - _canvasContainer.dom.overlay = document.querySelector("canvas.drawingBuffer"); - if (!_canvasContainer.dom.overlay) { - _canvasContainer.dom.overlay = document.createElement("canvas"); - _canvasContainer.dom.overlay.className = "drawingBuffer"; - if ($viewport) { - $viewport.appendChild(_canvasContainer.dom.overlay); - } - var clearFix = document.createElement("br"); - clearFix.setAttribute("clear", "all"); - if ($viewport) { - $viewport.appendChild(clearFix); - } + } + _canvasContainer.ctx.image = _canvasContainer.dom.image.getContext("2d"); + _canvasContainer.dom.image.width = _inputStream.getCanvasSize().x; + _canvasContainer.dom.image.height = _inputStream.getCanvasSize().y; + + _canvasContainer.dom.overlay = document.querySelector("canvas.drawingBuffer"); + if (!_canvasContainer.dom.overlay) { + _canvasContainer.dom.overlay = document.createElement("canvas"); + _canvasContainer.dom.overlay.className = "drawingBuffer"; + if ($viewport) { + $viewport.appendChild(_canvasContainer.dom.overlay); + } + var clearFix = document.createElement("br"); + clearFix.setAttribute("clear", "all"); + if ($viewport) { + $viewport.appendChild(clearFix); } - _canvasContainer.ctx.overlay = _canvasContainer.dom.overlay.getContext("2d"); - _canvasContainer.dom.overlay.width = _inputStream.getCanvasSize().x; - _canvasContainer.dom.overlay.height = _inputStream.getCanvasSize().y; } + _canvasContainer.ctx.overlay = _canvasContainer.dom.overlay.getContext("2d"); + _canvasContainer.dom.overlay.width = _inputStream.getCanvasSize().x; + _canvasContainer.dom.overlay.height = _inputStream.getCanvasSize().y; } - - function initBuffers(imageWrapper) { - if (imageWrapper) { - _inputImageWrapper = imageWrapper; - } else { - _inputImageWrapper = new ImageWrapper({ - x : _inputStream.getWidth(), - y : _inputStream.getHeight() - }); - } - - console.log(_inputImageWrapper.size); - _boxSize = [ - vec2.clone([0, 0]), - vec2.clone([0, _inputImageWrapper.size.y]), - vec2.clone([_inputImageWrapper.size.x, _inputImageWrapper.size.y]), - vec2.clone([_inputImageWrapper.size.x, 0]) - ]; - BarcodeLocator.init(_inputImageWrapper, _config.locator); +} + +function initBuffers(imageWrapper) { + if (imageWrapper) { + _inputImageWrapper = imageWrapper; + } else { + _inputImageWrapper = new ImageWrapper({ + x : _inputStream.getWidth(), + y : _inputStream.getHeight() + }); } - function getBoundingBoxes() { - if (_config.locate) { - return BarcodeLocator.locate(); - } else { - return [[ - vec2.clone(_boxSize[0]), - vec2.clone(_boxSize[1]), - vec2.clone(_boxSize[2]), - vec2.clone(_boxSize[3])]]; - } + console.log(_inputImageWrapper.size); + _boxSize = [ + vec2.clone([0, 0]), + vec2.clone([0, _inputImageWrapper.size.y]), + vec2.clone([_inputImageWrapper.size.x, _inputImageWrapper.size.y]), + vec2.clone([_inputImageWrapper.size.x, 0]) + ]; + BarcodeLocator.init(_inputImageWrapper, _config.locator); +} + +function getBoundingBoxes() { + if (_config.locate) { + return BarcodeLocator.locate(); + } else { + return [[ + vec2.clone(_boxSize[0]), + vec2.clone(_boxSize[1]), + vec2.clone(_boxSize[2]), + vec2.clone(_boxSize[3])]]; } +} - function transformResult(result) { - var topRight = _inputStream.getTopRight(), - xOffset = topRight.x, - yOffset = topRight.y, - i; +function transformResult(result) { + var topRight = _inputStream.getTopRight(), + xOffset = topRight.x, + yOffset = topRight.y, + i; - if (!result || (xOffset === 0 && yOffset === 0)) { - return; - } + if (!result || (xOffset === 0 && yOffset === 0)) { + return; + } - if (result.line && result.line.length === 2) { - moveLine(result.line); - } - if (result.boxes && result.boxes.length > 0) { - for (i = 0; i < result.boxes.length; i++) { - moveBox(result.boxes[i]); - } + if (result.line && result.line.length === 2) { + moveLine(result.line); + } + if (result.boxes && result.boxes.length > 0) { + for (i = 0; i < result.boxes.length; i++) { + moveBox(result.boxes[i]); } + } - function moveBox(box) { - var corner = box.length; - - while(corner--) { - box[corner][0] += xOffset; - box[corner][1] += yOffset; - } - } + function moveBox(box) { + var corner = box.length; - function moveLine(line) { - line[0].x += xOffset; - line[0].y += yOffset; - line[1].x += xOffset; - line[1].y += yOffset; + while(corner--) { + box[corner][0] += xOffset; + box[corner][1] += yOffset; } } - function publishResult(result, imageData) { - if (_onUIThread) { - transformResult(result); - if (imageData && result && result.codeResult) { - if (_resultCollector) { - _resultCollector.addResult(imageData, _inputStream.getCanvasSize(), result.codeResult); - } + function moveLine(line) { + line[0].x += xOffset; + line[0].y += yOffset; + line[1].x += xOffset; + line[1].y += yOffset; + } +} + +function publishResult(result, imageData) { + if (_onUIThread) { + transformResult(result); + if (imageData && result && result.codeResult) { + if (_resultCollector) { + _resultCollector.addResult(imageData, _inputStream.getCanvasSize(), result.codeResult); } } - - Events.publish("processed", result); - if (result && result.codeResult) { - Events.publish("detected", result); - } } - function locateAndDecode() { - var result, - boxes; - - boxes = getBoundingBoxes(); - if (boxes) { - result = _decoder.decodeFromBoundingBoxes(boxes); - result = result || {}; - result.boxes = boxes; - publishResult(result, _inputImageWrapper.data); - } else { - publishResult(); - } + Events.publish("processed", result); + if (result && result.codeResult) { + Events.publish("detected", result); } - - function update() { - var availableWorker; - - if (_onUIThread) { - if (_workerPool.length > 0) { - availableWorker = _workerPool.filter(function(workerThread) { - return !workerThread.busy; - })[0]; - if (availableWorker) { - _framegrabber.attachData(availableWorker.imageData); - } else { - return; // all workers are busy - } +} + +function locateAndDecode() { + var result, + boxes; + + boxes = getBoundingBoxes(); + if (boxes) { + result = _decoder.decodeFromBoundingBoxes(boxes); + result = result || {}; + result.boxes = boxes; + publishResult(result, _inputImageWrapper.data); + } else { + publishResult(); + } +} + +function update() { + var availableWorker; + + if (_onUIThread) { + if (_workerPool.length > 0) { + availableWorker = _workerPool.filter(function(workerThread) { + return !workerThread.busy; + })[0]; + if (availableWorker) { + _framegrabber.attachData(availableWorker.imageData); } else { - _framegrabber.attachData(_inputImageWrapper.data); - } - if (_framegrabber.grab()) { - if (availableWorker) { - availableWorker.busy = true; - availableWorker.worker.postMessage({ - cmd: 'process', - imageData: availableWorker.imageData - }, [availableWorker.imageData.buffer]); - } else { - locateAndDecode(); - } + return; // all workers are busy } } else { - locateAndDecode(); + _framegrabber.attachData(_inputImageWrapper.data); } - } - - function start() { - _stopped = false; - ( function frame() { - if (!_stopped) { - update(); - if (_onUIThread && _config.inputStream.type == "LiveStream") { - window.requestAnimFrame(frame); - } + if (_framegrabber.grab()) { + if (availableWorker) { + availableWorker.busy = true; + availableWorker.worker.postMessage({ + cmd: 'process', + imageData: availableWorker.imageData + }, [availableWorker.imageData.buffer]); + } else { + locateAndDecode(); } - }()); - } - - function initWorkers(cb) { - var i; - _workerPool = []; - - for (i = 0; i < _config.numOfWorkers; i++) { - initWorker(workerInitialized); } - - function workerInitialized(workerThread) { - _workerPool.push(workerThread); - if (_workerPool.length >= _config.numOfWorkers){ - cb(); + } else { + locateAndDecode(); + } +} + +function start() { + _stopped = false; + ( function frame() { + if (!_stopped) { + update(); + if (_onUIThread && _config.inputStream.type == "LiveStream") { + window.requestAnimFrame(frame); } } - } + }()); +} - function initWorker(cb) { - var blobURL, - workerThread = { - worker: undefined, - imageData: new Uint8Array(_inputStream.getWidth() * _inputStream.getHeight()), - busy: true - }; - - blobURL = generateWorkerBlob(); - workerThread.worker = new Worker(blobURL); - - workerThread.worker.onmessage = function(e) { - if (e.data.event === 'initialized') { - URL.revokeObjectURL(blobURL); - workerThread.busy = false; - workerThread.imageData = new Uint8Array(e.data.imageData); - console.log("Worker initialized"); - return cb(workerThread); - } else if (e.data.event === 'processed') { - workerThread.imageData = new Uint8Array(e.data.imageData); - workerThread.busy = false; - publishResult(e.data.result, workerThread.imageData); - } else if (e.data.event === 'error') { - console.log("Worker error: " + e.data.message); - } - }; +function initWorkers(cb) { + var i; + _workerPool = []; - workerThread.worker.postMessage({ - cmd: 'init', - size: {x: _inputStream.getWidth(), y: _inputStream.getHeight()}, - imageData: workerThread.imageData, - config: _config - }, [workerThread.imageData.buffer]); + for (i = 0; i < _config.numOfWorkers; i++) { + initWorker(workerInitialized); } - - function workerInterface(factory) { - if (factory) { - /* jshint ignore:start */ - var Quagga = factory(); - if (!Quagga) { - self.postMessage({'event': 'error', message: 'Quagga could not be created'}); - return; - } - /* jshint ignore:end */ + function workerInitialized(workerThread) { + _workerPool.push(workerThread); + if (_workerPool.length >= _config.numOfWorkers){ + cb(); } - /* jshint ignore:start */ - var imageWrapper; - - self.onmessage = function(e) { - if (e.data.cmd === 'init') { - var config = e.data.config; - config.numOfWorkers = 0; - imageWrapper = new Quagga.ImageWrapper({ - x : e.data.size.x, - y : e.data.size.y - }, new Uint8Array(e.data.imageData)); - Quagga.init(config, ready, imageWrapper); - Quagga.onProcessed(onProcessed); - } else if (e.data.cmd === 'process') { - imageWrapper.data = new Uint8Array(e.data.imageData); - Quagga.start(); - } else if (e.data.cmd === 'setReaders') { - Quagga.setReaders(e.data.readers); - } + } +} + +function initWorker(cb) { + var blobURL, + workerThread = { + worker: undefined, + imageData: new Uint8Array(_inputStream.getWidth() * _inputStream.getHeight()), + busy: true }; - function onProcessed(result) { - self.postMessage({'event': 'processed', imageData: imageWrapper.data, result: result}, [imageWrapper.data.buffer]); + blobURL = generateWorkerBlob(); + workerThread.worker = new Worker(blobURL); + + workerThread.worker.onmessage = function(e) { + if (e.data.event === 'initialized') { + URL.revokeObjectURL(blobURL); + workerThread.busy = false; + workerThread.imageData = new Uint8Array(e.data.imageData); + console.log("Worker initialized"); + return cb(workerThread); + } else if (e.data.event === 'processed') { + workerThread.imageData = new Uint8Array(e.data.imageData); + workerThread.busy = false; + publishResult(e.data.result, workerThread.imageData); + } else if (e.data.event === 'error') { + console.log("Worker error: " + e.data.message); } + }; - function ready() { - self.postMessage({'event': 'initialized', imageData: imageWrapper.data}, [imageWrapper.data.buffer]); - } - /* jshint ignore:end */ - } + workerThread.worker.postMessage({ + cmd: 'init', + size: {x: _inputStream.getWidth(), y: _inputStream.getHeight()}, + imageData: workerThread.imageData, + config: _config + }, [workerThread.imageData.buffer]); +} - function generateWorkerBlob() { - var blob, - factorySource; +function workerInterface(factory) { + window = self; + if (factory) { /* jshint ignore:start */ - if (typeof __factorySource__ !== 'undefined') { - factorySource = __factorySource__; + var Quagga = factory(); + if (!Quagga) { + self.postMessage({'event': 'error', message: 'Quagga could not be created'}); + return; } /* jshint ignore:end */ + } + /* jshint ignore:start */ + var imageWrapper; + + self.onmessage = function(e) { + if (e.data.cmd === 'init') { + var config = e.data.config; + config.numOfWorkers = 0; + imageWrapper = new Quagga.ImageWrapper({ + x : e.data.size.x, + y : e.data.size.y + }, new Uint8Array(e.data.imageData)); + Quagga.init(config, ready, imageWrapper); + Quagga.onProcessed(onProcessed); + } else if (e.data.cmd === 'process') { + imageWrapper.data = new Uint8Array(e.data.imageData); + Quagga.start(); + } else if (e.data.cmd === 'setReaders') { + Quagga.setReaders(e.data.readers); + } + }; + + function onProcessed(result) { + self.postMessage({'event': 'processed', imageData: imageWrapper.data, result: result}, [imageWrapper.data.buffer]); + } + + function ready() { + self.postMessage({'event': 'initialized', imageData: imageWrapper.data}, [imageWrapper.data.buffer]); + } + /* jshint ignore:end */ +} - blob = new Blob(['(' + workerInterface.toString() + ')(' + factorySource + ');'], - {type : 'text/javascript'}); +function generateWorkerBlob() { + var blob, + factorySource; - return window.URL.createObjectURL(blob); + /* jshint ignore:start */ + if (typeof __factorySource__ !== 'undefined') { + factorySource = __factorySource__; } + /* jshint ignore:end */ - function setReaders(readers) { - if (_decoder) { - _decoder.setReaders(readers); - } else if (_onUIThread && _workerPool.length > 0) { - _workerPool.forEach(function(workerThread) { - workerThread.worker.postMessage({cmd: 'setReaders', readers: readers}); - }); - } + blob = new Blob(['(' + workerInterface.toString() + ')(' + factorySource + ');'], + {type : 'text/javascript'}); + + return window.URL.createObjectURL(blob); +} + +function setReaders(readers) { + if (_decoder) { + _decoder.setReaders(readers); + } else if (_onUIThread && _workerPool.length > 0) { + _workerPool.forEach(function(workerThread) { + workerThread.worker.postMessage({cmd: 'setReaders', readers: readers}); + }); } +} - return { - init : function(config, cb, imageWrapper) { - _config = HtmlUtils.mergeObjects(_config, config); - if (imageWrapper) { - _onUIThread = false; - initializeData(imageWrapper); - return cb(); - } else { - initInputStream(cb); +export default { + init : function(config, cb, imageWrapper) { + _config = merge({}, Config, config); + if (imageWrapper) { + _onUIThread = false; + initializeData(imageWrapper); + return cb(); + } else { + initInputStream(cb); + } + }, + start : function() { + start(); + }, + stop : function() { + _stopped = true; + _workerPool.forEach(function(workerThread) { + workerThread.worker.terminate(); + console.log("Worker terminated!"); + }); + _workerPool.length = 0; + if (_config.inputStream.type === "LiveStream") { + CameraAccess.release(); + _inputStream.clearEventHandlers(); + } + }, + pause: function() { + _stopped = true; + }, + onDetected : function(callback) { + Events.subscribe("detected", callback); + }, + offDetected: function(callback) { + Events.unsubscribe("detected", callback); + }, + onProcessed: function(callback) { + Events.subscribe("processed", callback); + }, + offProcessed: function(callback) { + Events.unsubscribe("processed", callback); + }, + setReaders: function(readers) { + setReaders(readers); + }, + registerResultCollector: function(resultCollector) { + if (resultCollector && typeof resultCollector.addResult === 'function') { + _resultCollector = resultCollector; + } + }, + canvas : _canvasContainer, + decodeSingle : function(config, resultCallback) { + config = merge({ + inputStream: { + type : "ImageStream", + sequence : false, + size: 800, + src: config.src + }, + numOfWorkers: 1, + locator: { + halfSample: false } - }, - start : function() { + }, config); + this.init(config, function() { + Events.once("processed", function(result) { + _stopped = true; + resultCallback.call(null, result); + }, true); start(); - }, - stop : function() { - _stopped = true; - _workerPool.forEach(function(workerThread) { - workerThread.worker.terminate(); - console.log("Worker terminated!"); - }); - _workerPool.length = 0; - if (_config.inputStream.type === "LiveStream") { - CameraAccess.release(); - _inputStream.clearEventHandlers(); - } - }, - pause: function() { - _stopped = true; - }, - onDetected : function(callback) { - Events.subscribe("detected", callback); - }, - offDetected: function(callback) { - Events.unsubscribe("detected", callback); - }, - onProcessed: function(callback) { - Events.subscribe("processed", callback); - }, - offProcessed: function(callback) { - Events.unsubscribe("processed", callback); - }, - setReaders: function(readers) { - setReaders(readers); - }, - registerResultCollector: function(resultCollector) { - if (resultCollector && typeof resultCollector.addResult === 'function') { - _resultCollector = resultCollector; - } - }, - canvas : _canvasContainer, - decodeSingle : function(config, resultCallback) { - config = HtmlUtils.mergeObjects({ - inputStream: { - type : "ImageStream", - sequence : false, - size: 800, - src: config.src - }, - numOfWorkers: 1, - locator: { - halfSample: false - } - }, config); - this.init(config, function() { - Events.once("processed", function(result) { - _stopped = true; - resultCallback.call(null, result); - }, true); - start(); - }); - }, - ImageWrapper: ImageWrapper, - ImageDebug: ImageDebug, - ResultCollector: ResultCollector - }; -}); + }); + }, + ImageWrapper: ImageWrapper, + ImageDebug: ImageDebug, + ResultCollector: ResultCollector +}; diff --git a/src/rasterizer.js b/src/rasterizer.js index 756f1d35..1a564b5a 100644 --- a/src/rasterizer.js +++ b/src/rasterizer.js @@ -1,198 +1,193 @@ -/* jshint undef: true, unused: true, browser:true, devel: true */ -/* global define */ +import Tracer from './tracer'; /** * http://www.codeproject.com/Tips/407172/Connected-Component-Labeling-and-Vectorization */ -define(["tracer"], function(Tracer) { - "use strict"; +var Rasterizer = { + createContour2D : function() { + return { + dir : null, + index : null, + firstVertex : null, + insideContours : null, + nextpeer : null, + prevpeer : null + }; + }, + CONTOUR_DIR : { + CW_DIR : 0, + CCW_DIR : 1, + UNKNOWN_DIR : 2 + }, + DIR : { + OUTSIDE_EDGE : -32767, + INSIDE_EDGE : -32766 + }, + create : function(imageWrapper, labelWrapper) { + var imageData = imageWrapper.data, + labelData = labelWrapper.data, + width = imageWrapper.size.x, + height = imageWrapper.size.y, + tracer = Tracer.create(imageWrapper, labelWrapper); - var Rasterizer = { - createContour2D : function() { - return { - dir : null, - index : null, - firstVertex : null, - insideContours : null, - nextpeer : null, - prevpeer : null - }; - }, - CONTOUR_DIR : { - CW_DIR : 0, - CCW_DIR : 1, - UNKNOWN_DIR : 2 - }, - DIR : { - OUTSIDE_EDGE : -32767, - INSIDE_EDGE : -32766 - }, - create : function(imageWrapper, labelWrapper) { - var imageData = imageWrapper.data, - labelData = labelWrapper.data, - width = imageWrapper.size.x, - height = imageWrapper.size.y, - tracer = Tracer.create(imageWrapper, labelWrapper); + return { + rasterize : function(depthlabel) { + var color, + bc, + lc, + labelindex, + cx, + cy, + colorMap = [], + vertex, + p, + cc, + sc, + pos, + connectedCount = 0, + i; - return { - rasterize : function(depthlabel) { - var color, - bc, - lc, - labelindex, - cx, - cy, - colorMap = [], - vertex, - p, - cc, - sc, - pos, - connectedCount = 0, - i; - - for ( i = 0; i < 400; i++) { - colorMap[i] = 0; - } + for ( i = 0; i < 400; i++) { + colorMap[i] = 0; + } - colorMap[0] = imageData[0]; - cc = null; - for ( cy = 1; cy < height - 1; cy++) { - labelindex = 0; - bc = colorMap[0]; - for ( cx = 1; cx < width - 1; cx++) { - pos = cy * width + cx; - if (labelData[pos] === 0) { - color = imageData[pos]; - if (color !== bc) { - if (labelindex === 0) { - lc = connectedCount + 1; - colorMap[lc] = color; - bc = color; - vertex = tracer.contourTracing(cy, cx, lc, color, Rasterizer.DIR.OUTSIDE_EDGE); - if (vertex !== null) { - connectedCount++; - labelindex = lc; - p = Rasterizer.createContour2D(); + colorMap[0] = imageData[0]; + cc = null; + for ( cy = 1; cy < height - 1; cy++) { + labelindex = 0; + bc = colorMap[0]; + for ( cx = 1; cx < width - 1; cx++) { + pos = cy * width + cx; + if (labelData[pos] === 0) { + color = imageData[pos]; + if (color !== bc) { + if (labelindex === 0) { + lc = connectedCount + 1; + colorMap[lc] = color; + bc = color; + vertex = tracer.contourTracing(cy, cx, lc, color, Rasterizer.DIR.OUTSIDE_EDGE); + if (vertex !== null) { + connectedCount++; + labelindex = lc; + p = Rasterizer.createContour2D(); + p.dir = Rasterizer.CONTOUR_DIR.CW_DIR; + p.index = labelindex; + p.firstVertex = vertex; + p.nextpeer = cc; + p.insideContours = null; + if (cc !== null) { + cc.prevpeer = p; + } + cc = p; + } + } else { + vertex = tracer.contourTracing(cy, cx, Rasterizer.DIR.INSIDE_EDGE, color, labelindex); + if (vertex !== null) { + p = Rasterizer.createContour2D(); + p.firstVertex = vertex; + p.insideContours = null; + if (depthlabel === 0) { + p.dir = Rasterizer.CONTOUR_DIR.CCW_DIR; + } else { p.dir = Rasterizer.CONTOUR_DIR.CW_DIR; - p.index = labelindex; - p.firstVertex = vertex; - p.nextpeer = cc; - p.insideContours = null; - if (cc !== null) { - cc.prevpeer = p; - } - cc = p; } - } else { - vertex = tracer.contourTracing(cy, cx, Rasterizer.DIR.INSIDE_EDGE, color, labelindex); - if (vertex !== null) { - p = Rasterizer.createContour2D(); - p.firstVertex = vertex; - p.insideContours = null; - if (depthlabel === 0) { - p.dir = Rasterizer.CONTOUR_DIR.CCW_DIR; - } else { - p.dir = Rasterizer.CONTOUR_DIR.CW_DIR; - } - p.index = depthlabel; - sc = cc; - while ((sc !== null) && sc.index !== labelindex) { - sc = sc.nextpeer; - } - if (sc !== null) { - p.nextpeer = sc.insideContours; - if (sc.insideContours !== null) { - sc.insideContours.prevpeer = p; - } - sc.insideContours = p; + p.index = depthlabel; + sc = cc; + while ((sc !== null) && sc.index !== labelindex) { + sc = sc.nextpeer; + } + if (sc !== null) { + p.nextpeer = sc.insideContours; + if (sc.insideContours !== null) { + sc.insideContours.prevpeer = p; } + sc.insideContours = p; } } - } else { - labelData[pos] = labelindex; - } - } else if (labelData[pos] === Rasterizer.DIR.OUTSIDE_EDGE || labelData[pos] === Rasterizer.DIR.INSIDE_EDGE) { - labelindex = 0; - if (labelData[pos] === Rasterizer.DIR.INSIDE_EDGE) { - bc = imageData[pos]; - } else { - bc = colorMap[0]; } } else { - labelindex = labelData[pos]; - bc = colorMap[labelindex]; + labelData[pos] = labelindex; + } + } else if (labelData[pos] === Rasterizer.DIR.OUTSIDE_EDGE || labelData[pos] === Rasterizer.DIR.INSIDE_EDGE) { + labelindex = 0; + if (labelData[pos] === Rasterizer.DIR.INSIDE_EDGE) { + bc = imageData[pos]; + } else { + bc = colorMap[0]; } + } else { + labelindex = labelData[pos]; + bc = colorMap[labelindex]; } } - sc = cc; - while (sc !== null) { - sc.index = depthlabel; - sc = sc.nextpeer; + } + sc = cc; + while (sc !== null) { + sc.index = depthlabel; + sc = sc.nextpeer; + } + return { + cc : cc, + count : connectedCount + }; + }, + debug: { + drawContour : function(canvas, firstContour) { + var ctx = canvas.getContext("2d"), + pq = firstContour, + iq, + q, + p; + + ctx.strokeStyle = "red"; + ctx.fillStyle = "red"; + ctx.lineWidth = 1; + + if (pq !== null) { + iq = pq.insideContours; + } else { + iq = null; } - return { - cc : cc, - count : connectedCount - }; - }, - debug: { - drawContour : function(canvas, firstContour) { - var ctx = canvas.getContext("2d"), - pq = firstContour, - iq, - q, - p; - - ctx.strokeStyle = "red"; - ctx.fillStyle = "red"; - ctx.lineWidth = 1; - - if (pq !== null) { - iq = pq.insideContours; + + while (pq !== null) { + if (iq !== null) { + q = iq; + iq = iq.nextpeer; } else { - iq = null; - } - - while (pq !== null) { - if (iq !== null) { - q = iq; - iq = iq.nextpeer; + q = pq; + pq = pq.nextpeer; + if (pq !== null) { + iq = pq.insideContours; } else { - q = pq; - pq = pq.nextpeer; - if (pq !== null) { - iq = pq.insideContours; - } else { - iq = null; - } - } - - switch(q.dir) { - case Rasterizer.CONTOUR_DIR.CW_DIR: - ctx.strokeStyle = "red"; - break; - case Rasterizer.CONTOUR_DIR.CCW_DIR: - ctx.strokeStyle = "blue"; - break; - case Rasterizer.CONTOUR_DIR.UNKNOWN_DIR: - ctx.strokeStyle = "green"; - break; + iq = null; } - - p = q.firstVertex; - ctx.beginPath(); - ctx.moveTo(p.x, p.y); - do { - p = p.next; - ctx.lineTo(p.x, p.y); - } while(p !== q.firstVertex); - ctx.stroke(); } + + switch(q.dir) { + case Rasterizer.CONTOUR_DIR.CW_DIR: + ctx.strokeStyle = "red"; + break; + case Rasterizer.CONTOUR_DIR.CCW_DIR: + ctx.strokeStyle = "blue"; + break; + case Rasterizer.CONTOUR_DIR.UNKNOWN_DIR: + ctx.strokeStyle = "green"; + break; + } + + p = q.firstVertex; + ctx.beginPath(); + ctx.moveTo(p.x, p.y); + do { + p = p.next; + ctx.lineTo(p.x, p.y); + } while(p !== q.firstVertex); + ctx.stroke(); } } - }; - } - }; + } + }; + } +}; - return (Rasterizer); -}); +export default Rasterizer; diff --git a/src/result_collector.js b/src/result_collector.js index f29bf959..05f57002 100644 --- a/src/result_collector.js +++ b/src/result_collector.js @@ -1,59 +1,54 @@ -/* jshint undef: true, unused: true, browser:true, devel: true */ -/* global define */ +import ImageDebug from './image_debug'; -define(["image_debug"], function(ImageDebug) { - "use strict"; - - function contains(codeResult, list) { - if (list) { - return list.some(function (item) { - return Object.keys(item).every(function (key) { - return item[key] === codeResult[key]; - }); +function contains(codeResult, list) { + if (list) { + return list.some(function (item) { + return Object.keys(item).every(function (key) { + return item[key] === codeResult[key]; }); - } - return false; + }); } + return false; +} - function passesFilter(codeResult, filter) { - if (typeof filter === 'function') { - return filter(codeResult); - } - return true; +function passesFilter(codeResult, filter) { + if (typeof filter === 'function') { + return filter(codeResult); } + return true; +} - return { - create: function(config) { - var canvas = document.createElement("canvas"), - ctx = canvas.getContext("2d"), - results = [], - capacity = config.capacity || 20, - capture = config.capture === true; +export default { + create: function(config) { + var canvas = document.createElement("canvas"), + ctx = canvas.getContext("2d"), + results = [], + capacity = config.capacity || 20, + capture = config.capture === true; - function matchesConstraints(codeResult) { - return capacity && codeResult && !contains(codeResult, config.blacklist) && passesFilter(codeResult, config.filter); - } + function matchesConstraints(codeResult) { + return capacity && codeResult && !contains(codeResult, config.blacklist) && passesFilter(codeResult, config.filter); + } - return { - addResult: function(data, imageSize, codeResult) { - var result = {}; + return { + addResult: function(data, imageSize, codeResult) { + var result = {}; - if (matchesConstraints(codeResult)) { - capacity--; - result.codeResult = codeResult; - if (capture) { - canvas.width = imageSize.x; - canvas.height = imageSize.y; - ImageDebug.drawImage(data, imageSize, ctx); - result.frame = canvas.toDataURL(); - } - results.push(result); + if (matchesConstraints(codeResult)) { + capacity--; + result.codeResult = codeResult; + if (capture) { + canvas.width = imageSize.x; + canvas.height = imageSize.y; + ImageDebug.drawImage(data, imageSize, ctx); + result.frame = canvas.toDataURL(); } - }, - getResults: function() { - return results; + results.push(result); } - }; - } - }; -}); + }, + getResults: function() { + return results; + } + }; + } +}; diff --git a/src/skeletonizer.js b/src/skeletonizer.js index 166f3051..fc7316f7 100644 --- a/src/skeletonizer.js +++ b/src/skeletonizer.js @@ -1,204 +1,197 @@ -/* jshint undef: true, unused: true, browser:true, devel: true, -W041: false */ -/* global define */ - -define(function() { - "use strict"; - - /* @preserve ASM BEGIN */ - function Skeletonizer(stdlib, foreign, buffer) { - "use asm"; - - var images = new stdlib.Uint8Array(buffer), - size = foreign.size | 0, - imul = stdlib.Math.imul; - - function erode(inImagePtr, outImagePtr) { - inImagePtr = inImagePtr | 0; - outImagePtr = outImagePtr | 0; - - var v = 0, - u = 0, - sum = 0, - yStart1 = 0, - yStart2 = 0, - xStart1 = 0, - xStart2 = 0, - offset = 0; - - for ( v = 1; (v | 0) < ((size - 1) | 0); v = (v + 1) | 0) { - offset = (offset + size) | 0; - for ( u = 1; (u | 0) < ((size - 1) | 0); u = (u + 1) | 0) { - yStart1 = (offset - size) | 0; - yStart2 = (offset + size) | 0; - xStart1 = (u - 1) | 0; - xStart2 = (u + 1) | 0; - sum = ((images[(inImagePtr + yStart1 + xStart1) | 0] | 0) + (images[(inImagePtr + yStart1 + xStart2) | 0] | 0) + (images[(inImagePtr + offset + u) | 0] | 0) + (images[(inImagePtr + yStart2 + xStart1) | 0] | 0) + (images[(inImagePtr + yStart2 + xStart2) | 0] | 0)) | 0; - if ((sum | 0) == (5 | 0)) { - images[(outImagePtr + offset + u) | 0] = 1; - } else { - images[(outImagePtr + offset + u) | 0] = 0; - } +/* @preserve ASM BEGIN */ +function Skeletonizer(stdlib, foreign, buffer) { + "use asm"; + + var images = new stdlib.Uint8Array(buffer), + size = foreign.size | 0, + imul = stdlib.Math.imul; + + function erode(inImagePtr, outImagePtr) { + inImagePtr = inImagePtr | 0; + outImagePtr = outImagePtr | 0; + + var v = 0, + u = 0, + sum = 0, + yStart1 = 0, + yStart2 = 0, + xStart1 = 0, + xStart2 = 0, + offset = 0; + + for ( v = 1; (v | 0) < ((size - 1) | 0); v = (v + 1) | 0) { + offset = (offset + size) | 0; + for ( u = 1; (u | 0) < ((size - 1) | 0); u = (u + 1) | 0) { + yStart1 = (offset - size) | 0; + yStart2 = (offset + size) | 0; + xStart1 = (u - 1) | 0; + xStart2 = (u + 1) | 0; + sum = ((images[(inImagePtr + yStart1 + xStart1) | 0] | 0) + (images[(inImagePtr + yStart1 + xStart2) | 0] | 0) + (images[(inImagePtr + offset + u) | 0] | 0) + (images[(inImagePtr + yStart2 + xStart1) | 0] | 0) + (images[(inImagePtr + yStart2 + xStart2) | 0] | 0)) | 0; + if ((sum | 0) == (5 | 0)) { + images[(outImagePtr + offset + u) | 0] = 1; + } else { + images[(outImagePtr + offset + u) | 0] = 0; } } - return; } + return; + } - function subtract(aImagePtr, bImagePtr, outImagePtr) { - aImagePtr = aImagePtr | 0; - bImagePtr = bImagePtr | 0; - outImagePtr = outImagePtr | 0; + function subtract(aImagePtr, bImagePtr, outImagePtr) { + aImagePtr = aImagePtr | 0; + bImagePtr = bImagePtr | 0; + outImagePtr = outImagePtr | 0; - var length = 0; + var length = 0; - length = imul(size, size) | 0; + length = imul(size, size) | 0; - while ((length | 0) > 0) { - length = (length - 1) | 0; - images[(outImagePtr + length) | 0] = ((images[(aImagePtr + length) | 0] | 0) - (images[(bImagePtr + length) | 0] | 0)) | 0; - } + while ((length | 0) > 0) { + length = (length - 1) | 0; + images[(outImagePtr + length) | 0] = ((images[(aImagePtr + length) | 0] | 0) - (images[(bImagePtr + length) | 0] | 0)) | 0; } + } - function bitwiseOr(aImagePtr, bImagePtr, outImagePtr) { - aImagePtr = aImagePtr | 0; - bImagePtr = bImagePtr | 0; - outImagePtr = outImagePtr | 0; + function bitwiseOr(aImagePtr, bImagePtr, outImagePtr) { + aImagePtr = aImagePtr | 0; + bImagePtr = bImagePtr | 0; + outImagePtr = outImagePtr | 0; - var length = 0; + var length = 0; - length = imul(size, size) | 0; + length = imul(size, size) | 0; - while ((length | 0) > 0) { - length = (length - 1) | 0; - images[(outImagePtr + length) | 0] = ((images[(aImagePtr + length) | 0] | 0) | (images[(bImagePtr + length) | 0] | 0)) | 0; - } + while ((length | 0) > 0) { + length = (length - 1) | 0; + images[(outImagePtr + length) | 0] = ((images[(aImagePtr + length) | 0] | 0) | (images[(bImagePtr + length) | 0] | 0)) | 0; } + } - function countNonZero(imagePtr) { - imagePtr = imagePtr | 0; - - var sum = 0, - length = 0; + function countNonZero(imagePtr) { + imagePtr = imagePtr | 0; - length = imul(size, size) | 0; + var sum = 0, + length = 0; - while ((length | 0) > 0) { - length = (length - 1) | 0; - sum = ((sum | 0) + (images[(imagePtr + length) | 0] | 0)) | 0; - } + length = imul(size, size) | 0; - return (sum | 0); + while ((length | 0) > 0) { + length = (length - 1) | 0; + sum = ((sum | 0) + (images[(imagePtr + length) | 0] | 0)) | 0; } - function init(imagePtr, value) { - imagePtr = imagePtr | 0; - value = value | 0; + return (sum | 0); + } - var length = 0; + function init(imagePtr, value) { + imagePtr = imagePtr | 0; + value = value | 0; - length = imul(size, size) | 0; + var length = 0; - while ((length | 0) > 0) { - length = (length - 1) | 0; - images[(imagePtr + length) | 0] = value; - } + length = imul(size, size) | 0; + + while ((length | 0) > 0) { + length = (length - 1) | 0; + images[(imagePtr + length) | 0] = value; } + } - function dilate(inImagePtr, outImagePtr) { - inImagePtr = inImagePtr | 0; - outImagePtr = outImagePtr | 0; - - var v = 0, - u = 0, - sum = 0, - yStart1 = 0, - yStart2 = 0, - xStart1 = 0, - xStart2 = 0, - offset = 0; - - for ( v = 1; (v | 0) < ((size - 1) | 0); v = (v + 1) | 0) { - offset = (offset + size) | 0; - for ( u = 1; (u | 0) < ((size - 1) | 0); u = (u + 1) | 0) { - yStart1 = (offset - size) | 0; - yStart2 = (offset + size) | 0; - xStart1 = (u - 1) | 0; - xStart2 = (u + 1) | 0; - sum = ((images[(inImagePtr + yStart1 + xStart1) | 0] | 0) + (images[(inImagePtr + yStart1 + xStart2) | 0] | 0) + (images[(inImagePtr + offset + u) | 0] | 0) + (images[(inImagePtr + yStart2 + xStart1) | 0] | 0) + (images[(inImagePtr + yStart2 + xStart2) | 0] | 0)) | 0; - if ((sum | 0) > (0 | 0)) { - images[(outImagePtr + offset + u) | 0] = 1; - } else { - images[(outImagePtr + offset + u) | 0] = 0; - } + function dilate(inImagePtr, outImagePtr) { + inImagePtr = inImagePtr | 0; + outImagePtr = outImagePtr | 0; + + var v = 0, + u = 0, + sum = 0, + yStart1 = 0, + yStart2 = 0, + xStart1 = 0, + xStart2 = 0, + offset = 0; + + for ( v = 1; (v | 0) < ((size - 1) | 0); v = (v + 1) | 0) { + offset = (offset + size) | 0; + for ( u = 1; (u | 0) < ((size - 1) | 0); u = (u + 1) | 0) { + yStart1 = (offset - size) | 0; + yStart2 = (offset + size) | 0; + xStart1 = (u - 1) | 0; + xStart2 = (u + 1) | 0; + sum = ((images[(inImagePtr + yStart1 + xStart1) | 0] | 0) + (images[(inImagePtr + yStart1 + xStart2) | 0] | 0) + (images[(inImagePtr + offset + u) | 0] | 0) + (images[(inImagePtr + yStart2 + xStart1) | 0] | 0) + (images[(inImagePtr + yStart2 + xStart2) | 0] | 0)) | 0; + if ((sum | 0) > (0 | 0)) { + images[(outImagePtr + offset + u) | 0] = 1; + } else { + images[(outImagePtr + offset + u) | 0] = 0; } } - return; } + return; + } - function memcpy(srcImagePtr, dstImagePtr) { - srcImagePtr = srcImagePtr | 0; - dstImagePtr = dstImagePtr | 0; + function memcpy(srcImagePtr, dstImagePtr) { + srcImagePtr = srcImagePtr | 0; + dstImagePtr = dstImagePtr | 0; - var length = 0; + var length = 0; - length = imul(size, size) | 0; + length = imul(size, size) | 0; - while ((length | 0) > 0) { - length = (length - 1) | 0; - images[(dstImagePtr + length) | 0] = (images[(srcImagePtr + length) | 0] | 0); - } + while ((length | 0) > 0) { + length = (length - 1) | 0; + images[(dstImagePtr + length) | 0] = (images[(srcImagePtr + length) | 0] | 0); } + } - function zeroBorder(imagePtr) { - imagePtr = imagePtr | 0; + function zeroBorder(imagePtr) { + imagePtr = imagePtr | 0; - var x = 0, - y = 0; + var x = 0, + y = 0; - for ( x = 0; (x | 0) < ((size - 1) | 0); x = (x + 1) | 0) { - images[(imagePtr + x) | 0] = 0; - images[(imagePtr + y) | 0] = 0; - y = ((y + size) - 1) | 0; - images[(imagePtr + y) | 0] = 0; - y = (y + 1) | 0; - } - for ( x = 0; (x | 0) < (size | 0); x = (x + 1) | 0) { - images[(imagePtr + y) | 0] = 0; - y = (y + 1) | 0; - } + for ( x = 0; (x | 0) < ((size - 1) | 0); x = (x + 1) | 0) { + images[(imagePtr + x) | 0] = 0; + images[(imagePtr + y) | 0] = 0; + y = ((y + size) - 1) | 0; + images[(imagePtr + y) | 0] = 0; + y = (y + 1) | 0; } - - function skeletonize() { - var subImagePtr = 0, - erodedImagePtr = 0, - tempImagePtr = 0, - skelImagePtr = 0, - sum = 0, - done = 0; - - erodedImagePtr = imul(size, size) | 0; - tempImagePtr = (erodedImagePtr + erodedImagePtr) | 0; - skelImagePtr = (tempImagePtr + erodedImagePtr) | 0; - - // init skel-image - init(skelImagePtr, 0); - zeroBorder(subImagePtr); - - do { - erode(subImagePtr, erodedImagePtr); - dilate(erodedImagePtr, tempImagePtr); - subtract(subImagePtr, tempImagePtr, tempImagePtr); - bitwiseOr(skelImagePtr, tempImagePtr, skelImagePtr); - memcpy(erodedImagePtr, subImagePtr); - sum = countNonZero(subImagePtr) | 0; - done = ((sum | 0) == 0 | 0); - } while(!done); + for ( x = 0; (x | 0) < (size | 0); x = (x + 1) | 0) { + images[(imagePtr + y) | 0] = 0; + y = (y + 1) | 0; } + } - return { - skeletonize : skeletonize - }; + function skeletonize() { + var subImagePtr = 0, + erodedImagePtr = 0, + tempImagePtr = 0, + skelImagePtr = 0, + sum = 0, + done = 0; + + erodedImagePtr = imul(size, size) | 0; + tempImagePtr = (erodedImagePtr + erodedImagePtr) | 0; + skelImagePtr = (tempImagePtr + erodedImagePtr) | 0; + + // init skel-image + init(skelImagePtr, 0); + zeroBorder(subImagePtr); + + do { + erode(subImagePtr, erodedImagePtr); + dilate(erodedImagePtr, tempImagePtr); + subtract(subImagePtr, tempImagePtr, tempImagePtr); + bitwiseOr(skelImagePtr, tempImagePtr, skelImagePtr); + memcpy(erodedImagePtr, subImagePtr); + sum = countNonZero(subImagePtr) | 0; + done = ((sum | 0) == 0 | 0); + } while(!done); } - /* @preserve ASM END */ - return Skeletonizer; -}); + return { + skeletonize : skeletonize + }; +} +/* @preserve ASM END */ + +export default Skeletonizer; diff --git a/src/subImage.js b/src/subImage.js index 66fe26f2..a8809186 100644 --- a/src/subImage.js +++ b/src/subImage.js @@ -1,97 +1,90 @@ -/* jshint undef: true, unused: true, browser:true, devel: true */ -/* global define */ +/** + * Construct representing a part of another {ImageWrapper}. Shares data + * between the parent and the child. + * @param from {ImageRef} The position where to start the {SubImage} from. (top-left corner) + * @param size {ImageRef} The size of the resulting image + * @param I {ImageWrapper} The {ImageWrapper} to share from + * @returns {SubImage} A shared part of the original image + */ +function SubImage(from, size, I) { + if (!I) { + I = { + data : null, + size : size + }; + } + this.data = I.data; + this.originalSize = I.size; + this.I = I; -define(["typedefs"], function() { - "use strict"; + this.from = from; + this.size = size; +} - /** - * Construct representing a part of another {ImageWrapper}. Shares data - * between the parent and the child. - * @param from {ImageRef} The position where to start the {SubImage} from. (top-left corner) - * @param size {ImageRef} The size of the resulting image - * @param I {ImageWrapper} The {ImageWrapper} to share from - * @returns {SubImage} A shared part of the original image - */ - function SubImage(from, size, I) { - if (!I) { - I = { - data : null, - size : size - }; - } - this.data = I.data; - this.originalSize = I.size; - this.I = I; +/** + * Displays the {SubImage} in a given canvas + * @param canvas {Canvas} The canvas element to write to + * @param scale {Number} Scale which is applied to each pixel-value + */ +SubImage.prototype.show = function(canvas, scale) { + var ctx, + frame, + data, + current, + y, + x, + pixel; - this.from = from; - this.size = size; + if (!scale) { + scale = 1.0; } - - /** - * Displays the {SubImage} in a given canvas - * @param canvas {Canvas} The canvas element to write to - * @param scale {Number} Scale which is applied to each pixel-value - */ - SubImage.prototype.show = function(canvas, scale) { - var ctx, - frame, - data, - current, - y, - x, - pixel; - - if (!scale) { - scale = 1.0; + ctx = canvas.getContext('2d'); + canvas.width = this.size.x; + canvas.height = this.size.y; + frame = ctx.getImageData(0, 0, canvas.width, canvas.height); + data = frame.data; + current = 0; + for (y = 0; y < this.size.y; y++) { + for (x = 0; x < this.size.x; x++) { + pixel = y * this.size.x + x; + current = this.get(x, y) * scale; + data[pixel * 4 + 0] = current; + data[pixel * 4 + 1] = current; + data[pixel * 4 + 2] = current; + data[pixel * 4 + 3] = 255; } - ctx = canvas.getContext('2d'); - canvas.width = this.size.x; - canvas.height = this.size.y; - frame = ctx.getImageData(0, 0, canvas.width, canvas.height); - data = frame.data; - current = 0; - for (y = 0; y < this.size.y; y++) { - for (x = 0; x < this.size.x; x++) { - pixel = y * this.size.x + x; - current = this.get(x, y) * scale; - data[pixel * 4 + 0] = current; - data[pixel * 4 + 1] = current; - data[pixel * 4 + 2] = current; - data[pixel * 4 + 3] = 255; - } - } - frame.data = data; - ctx.putImageData(frame, 0, 0); - }; + } + frame.data = data; + ctx.putImageData(frame, 0, 0); +}; + +/** + * Retrieves a given pixel position from the {SubImage} + * @param x {Number} The x-position + * @param y {Number} The y-position + * @returns {Number} The grayscale value at the pixel-position + */ +SubImage.prototype.get = function(x, y) { + return this.data[(this.from.y + y) * this.originalSize.x + this.from.x + x]; +}; - /** - * Retrieves a given pixel position from the {SubImage} - * @param x {Number} The x-position - * @param y {Number} The y-position - * @returns {Number} The grayscale value at the pixel-position - */ - SubImage.prototype.get = function(x, y) { - return this.data[(this.from.y + y) * this.originalSize.x + this.from.x + x]; - }; +/** + * Updates the underlying data from a given {ImageWrapper} + * @param image {ImageWrapper} The updated image + */ +SubImage.prototype.updateData = function(image) { + this.originalSize = image.size; + this.data = image.data; +}; - /** - * Updates the underlying data from a given {ImageWrapper} - * @param image {ImageWrapper} The updated image - */ - SubImage.prototype.updateData = function(image) { - this.originalSize = image.size; - this.data = image.data; - }; +/** + * Updates the position of the shared area + * @param from {x,y} The new location + * @returns {SubImage} returns {this} for possible chaining + */ +SubImage.prototype.updateFrom = function(from) { + this.from = from; + return this; +}; - /** - * Updates the position of the shared area - * @param from {x,y} The new location - * @returns {SubImage} returns {this} for possible chaining - */ - SubImage.prototype.updateFrom = function(from) { - this.from = from; - return this; - }; - - return (SubImage); -}); \ No newline at end of file +export default (SubImage); diff --git a/src/tracer.js b/src/tracer.js index da52df3e..5f59ed0c 100644 --- a/src/tracer.js +++ b/src/tracer.js @@ -1,108 +1,101 @@ -/* jshint undef: true, unused: true, browser:true, devel: true */ -/* global define */ - /** * http://www.codeproject.com/Tips/407172/Connected-Component-Labeling-and-Vectorization */ -define(function() { - "use strict"; - - var Tracer = { - searchDirections : [[0, 1], [1, 1], [1, 0], [1, -1], [0, -1], [-1, -1], [-1, 0], [-1, 1]], - create : function(imageWrapper, labelWrapper) { - var imageData = imageWrapper.data, - labelData = labelWrapper.data, - searchDirections = this.searchDirections, - width = imageWrapper.size.x, - pos; +var Tracer = { + searchDirections : [[0, 1], [1, 1], [1, 0], [1, -1], [0, -1], [-1, -1], [-1, 0], [-1, 1]], + create : function(imageWrapper, labelWrapper) { + var imageData = imageWrapper.data, + labelData = labelWrapper.data, + searchDirections = this.searchDirections, + width = imageWrapper.size.x, + pos; - function trace(current, color, label, edgelabel) { - var i, - y, - x; + function trace(current, color, label, edgelabel) { + var i, + y, + x; - for ( i = 0; i < 7; i++) { - y = current.cy + searchDirections[current.dir][0]; - x = current.cx + searchDirections[current.dir][1]; - pos = y * width + x; - if ((imageData[pos] === color) && ((labelData[pos] === 0) || (labelData[pos] === label))) { - labelData[pos] = label; - current.cy = y; - current.cx = x; - return true; - } else { - if (labelData[pos] === 0) { - labelData[pos] = edgelabel; - } - current.dir = (current.dir + 1) % 8; + for ( i = 0; i < 7; i++) { + y = current.cy + searchDirections[current.dir][0]; + x = current.cx + searchDirections[current.dir][1]; + pos = y * width + x; + if ((imageData[pos] === color) && ((labelData[pos] === 0) || (labelData[pos] === label))) { + labelData[pos] = label; + current.cy = y; + current.cx = x; + return true; + } else { + if (labelData[pos] === 0) { + labelData[pos] = edgelabel; } + current.dir = (current.dir + 1) % 8; } - return false; } + return false; + } - function vertex2D(x, y, dir) { - return { - dir : dir, - x : x, - y : y, - next : null, - prev : null - }; - } + function vertex2D(x, y, dir) { + return { + dir : dir, + x : x, + y : y, + next : null, + prev : null + }; + } - function contourTracing(sy, sx, label, color, edgelabel) { - var Fv = null, - Cv, - P, - ldir, - current = { - cx : sx, - cy : sy, - dir : 0 - }; + function contourTracing(sy, sx, label, color, edgelabel) { + var Fv = null, + Cv, + P, + ldir, + current = { + cx : sx, + cy : sy, + dir : 0 + }; - if (trace(current, color, label, edgelabel)) { - Fv = vertex2D(sx, sy, current.dir); - Cv = Fv; + if (trace(current, color, label, edgelabel)) { + Fv = vertex2D(sx, sy, current.dir); + Cv = Fv; + ldir = current.dir; + P = vertex2D(current.cx, current.cy, 0); + P.prev = Cv; + Cv.next = P; + P.next = null; + Cv = P; + do { + current.dir = (current.dir + 6) % 8; + trace(current, color, label, edgelabel); + if (ldir != current.dir) { + Cv.dir = current.dir; + P = vertex2D(current.cx, current.cy, 0); + P.prev = Cv; + Cv.next = P; + P.next = null; + Cv = P; + } else { + Cv.dir = ldir; + Cv.x = current.cx; + Cv.y = current.cy; + } ldir = current.dir; - P = vertex2D(current.cx, current.cy, 0); - P.prev = Cv; - Cv.next = P; - P.next = null; - Cv = P; - do { - current.dir = (current.dir + 6) % 8; - trace(current, color, label, edgelabel); - if (ldir != current.dir) { - Cv.dir = current.dir; - P = vertex2D(current.cx, current.cy, 0); - P.prev = Cv; - Cv.next = P; - P.next = null; - Cv = P; - } else { - Cv.dir = ldir; - Cv.x = current.cx; - Cv.y = current.cy; - } - ldir = current.dir; - } while(current.cx != sx || current.cy != sy); - Fv.prev = Cv.prev; - Cv.prev.next = Fv; - } - return Fv; + } while(current.cx != sx || current.cy != sy); + Fv.prev = Cv.prev; + Cv.prev.next = Fv; } - - return { - trace : function(current, color, label, edgelabel) { - return trace(current, color, label, edgelabel); - }, - contourTracing : function(sy, sx, label, color, edgelabel) { - return contourTracing(sy, sx, label, color, edgelabel); - } - }; + return Fv; } - }; - return (Tracer); -}); + return { + trace : function(current, color, label, edgelabel) { + return trace(current, color, label, edgelabel); + }, + contourTracing : function(sy, sx, label, color, edgelabel) { + return contourTracing(sy, sx, label, color, edgelabel); + } + }; + } +}; + +export default (Tracer); diff --git a/src/typedefs.js b/src/typedefs.js index dc13ab58..c43362d1 100644 --- a/src/typedefs.js +++ b/src/typedefs.js @@ -3,28 +3,31 @@ * Normalizes browser-specific prefixes */ -glMatrixArrayType = Float32Array; -if (typeof window !== 'undefined') { - window.requestAnimFrame = (function () { - return window.requestAnimationFrame || - window.webkitRequestAnimationFrame || - window.mozRequestAnimationFrame || - window.oRequestAnimationFrame || - window.msRequestAnimationFrame || - function (/* function FrameRequestCallback */ callback, /* DOMElement Element */ element) { - window.setTimeout(callback, 1000 / 60); - }; - })(); + if (typeof window !== 'undefined') { + window.requestAnimFrame = (function () { + return window.requestAnimationFrame || + window.webkitRequestAnimationFrame || + window.mozRequestAnimationFrame || + window.oRequestAnimationFrame || + window.msRequestAnimationFrame || + function (/* function FrameRequestCallback */ callback, /* DOMElement Element */ element) { + window.setTimeout(callback, 1000 / 60); + }; + })(); - navigator.getUserMedia = navigator.getUserMedia || navigator.webkitGetUserMedia || navigator.mozGetUserMedia || navigator.msGetUserMedia; - window.URL = window.URL || window.webkitURL || window.mozURL || window.msURL; + navigator.getUserMedia = navigator.getUserMedia || navigator.webkitGetUserMedia || navigator.mozGetUserMedia || navigator.msGetUserMedia; + window.URL = window.URL || window.webkitURL || window.mozURL || window.msURL; + } + Math.imul = Math.imul || function(a, b) { + var ah = (a >>> 16) & 0xffff, + al = a & 0xffff, + bh = (b >>> 16) & 0xffff, + bl = b & 0xffff; + // the shift by 0 fixes the sign on the high part + // the final |0 converts the unsigned value into a signed value + return ((al * bl) + (((ah * bl + al * bh) << 16) >>> 0)|0); + }; + +export default { + } -Math.imul = Math.imul || function(a, b) { - var ah = (a >>> 16) & 0xffff, - al = a & 0xffff, - bh = (b >>> 16) & 0xffff, - bl = b & 0xffff; - // the shift by 0 fixes the sign on the high part - // the final |0 converts the unsigned value into a signed value - return ((al * bl) + (((ah * bl + al * bh) << 16) >>> 0)|0); -}; \ No newline at end of file diff --git a/src/upc_e_reader.js b/src/upc_e_reader.js index d2dfaf0e..a72f71fd 100644 --- a/src/upc_e_reader.js +++ b/src/upc_e_reader.js @@ -1,114 +1,104 @@ -/* jshint undef: true, unused: true, browser:true, devel: true */ -/* global define */ - -define( - [ - "./ean_reader" - ], - function(EANReader) { - "use strict"; - - function UPCEReader() { - EANReader.call(this); +import EANReader from './ean_reader'; + +function UPCEReader() { + EANReader.call(this); +} + +var properties = { + CODE_FREQUENCY : {value: [ + [ 56, 52, 50, 49, 44, 38, 35, 42, 41, 37 ], + [7, 11, 13, 14, 19, 25, 28, 21, 22, 26]]}, + STOP_PATTERN: { value: [1 / 6 * 7, 1 / 6 * 7, 1 / 6 * 7, 1 / 6 * 7, 1 / 6 * 7, 1 / 6 * 7]}, + FORMAT: {value: "upc_e", writeable: false} +}; + +UPCEReader.prototype = Object.create(EANReader.prototype, properties); +UPCEReader.prototype.constructor = UPCEReader; + +UPCEReader.prototype._decodePayload = function(code, result, decodedCodes) { + var i, + self = this, + codeFrequency = 0x0; + + for ( i = 0; i < 6; i++) { + code = self._decodeCode(code.end); + if (!code) { + return null; } + if (code.code >= self.CODE_G_START) { + code.code = code.code - self.CODE_G_START; + codeFrequency |= 1 << (5 - i); + } + result.push(code.code); + decodedCodes.push(code); + } + if (!self._determineParity(codeFrequency, result)) { + return null; + } - var properties = { - CODE_FREQUENCY : {value: [ - [ 56, 52, 50, 49, 44, 38, 35, 42, 41, 37 ], - [7, 11, 13, 14, 19, 25, 28, 21, 22, 26]]}, - STOP_PATTERN: { value: [1 / 6 * 7, 1 / 6 * 7, 1 / 6 * 7, 1 / 6 * 7, 1 / 6 * 7, 1 / 6 * 7]}, - FORMAT: {value: "upc_e", writeable: false} - }; - - UPCEReader.prototype = Object.create(EANReader.prototype, properties); - UPCEReader.prototype.constructor = UPCEReader; - - UPCEReader.prototype._decodePayload = function(code, result, decodedCodes) { - var i, - self = this, - codeFrequency = 0x0; - - for ( i = 0; i < 6; i++) { - code = self._decodeCode(code.end); - if (!code) { - return null; - } - if (code.code >= self.CODE_G_START) { - code.code = code.code - self.CODE_G_START; - codeFrequency |= 1 << (5 - i); - } - result.push(code.code); - decodedCodes.push(code); - } - if (!self._determineParity(codeFrequency, result)) { - return null; - } + return code; +}; - return code; - }; - - UPCEReader.prototype._determineParity = function(codeFrequency, result) { - var self =this, - i, - nrSystem; - - for (nrSystem = 0; nrSystem < self.CODE_FREQUENCY.length; nrSystem++){ - for ( i = 0; i < self.CODE_FREQUENCY[nrSystem].length; i++) { - if (codeFrequency === self.CODE_FREQUENCY[nrSystem][i]) { - result.unshift(nrSystem); - result.push(i); - return true; - } - } - } - return false; - }; - - UPCEReader.prototype._convertToUPCA = function(result) { - var upca = [result[0]], - lastDigit = result[result.length - 2]; - - if (lastDigit <= 2) { - upca = upca.concat(result.slice(1, 3)) - .concat([lastDigit, 0, 0, 0, 0]) - .concat(result.slice(3, 6)); - } else if (lastDigit === 3) { - upca = upca.concat(result.slice(1, 4)) - .concat([0 ,0, 0, 0, 0]) - .concat(result.slice(4,6)); - } else if (lastDigit === 4) { - upca = upca.concat(result.slice(1, 5)) - .concat([0, 0, 0, 0, 0, result[5]]); - } else { - upca = upca.concat(result.slice(1, 6)) - .concat([0, 0, 0, 0, lastDigit]); - } +UPCEReader.prototype._determineParity = function(codeFrequency, result) { + var self =this, + i, + nrSystem; - upca.push(result[result.length - 1]); - return upca; - }; + for (nrSystem = 0; nrSystem < self.CODE_FREQUENCY.length; nrSystem++){ + for ( i = 0; i < self.CODE_FREQUENCY[nrSystem].length; i++) { + if (codeFrequency === self.CODE_FREQUENCY[nrSystem][i]) { + result.unshift(nrSystem); + result.push(i); + return true; + } + } + } + return false; +}; + +UPCEReader.prototype._convertToUPCA = function(result) { + var upca = [result[0]], + lastDigit = result[result.length - 2]; + + if (lastDigit <= 2) { + upca = upca.concat(result.slice(1, 3)) + .concat([lastDigit, 0, 0, 0, 0]) + .concat(result.slice(3, 6)); + } else if (lastDigit === 3) { + upca = upca.concat(result.slice(1, 4)) + .concat([0 ,0, 0, 0, 0]) + .concat(result.slice(4,6)); + } else if (lastDigit === 4) { + upca = upca.concat(result.slice(1, 5)) + .concat([0, 0, 0, 0, 0, result[5]]); + } else { + upca = upca.concat(result.slice(1, 6)) + .concat([0, 0, 0, 0, lastDigit]); + } - UPCEReader.prototype._checksum = function(result) { - return EANReader.prototype._checksum.call(this, this._convertToUPCA(result)); - }; + upca.push(result[result.length - 1]); + return upca; +}; - UPCEReader.prototype._findEnd = function(offset, isWhite) { - isWhite = true; - return EANReader.prototype._findEnd.call(this, offset, isWhite); - }; +UPCEReader.prototype._checksum = function(result) { + return EANReader.prototype._checksum.call(this, this._convertToUPCA(result)); +}; - UPCEReader.prototype._verifyTrailingWhitespace = function(endInfo) { - var self = this, - trailingWhitespaceEnd; +UPCEReader.prototype._findEnd = function(offset, isWhite) { + isWhite = true; + return EANReader.prototype._findEnd.call(this, offset, isWhite); +}; - trailingWhitespaceEnd = endInfo.end + ((endInfo.end - endInfo.start)/2); - if (trailingWhitespaceEnd < self._row.length) { - if (self._matchRange(endInfo.end, trailingWhitespaceEnd, 0)) { - return endInfo; - } - } - }; +UPCEReader.prototype._verifyTrailingWhitespace = function(endInfo) { + var self = this, + trailingWhitespaceEnd; - return (UPCEReader); + trailingWhitespaceEnd = endInfo.end + ((endInfo.end - endInfo.start)/2); + if (trailingWhitespaceEnd < self._row.length) { + if (self._matchRange(endInfo.end, trailingWhitespaceEnd, 0)) { + return endInfo; + } } -); \ No newline at end of file +}; + +export default UPCEReader; diff --git a/src/upc_reader.js b/src/upc_reader.js index cd6eef2a..a97e1518 100644 --- a/src/upc_reader.js +++ b/src/upc_reader.js @@ -1,35 +1,25 @@ -/* jshint undef: true, unused: true, browser:true, devel: true */ -/* global define */ +import EANReader from './ean_reader'; -define( - [ - "./ean_reader" - ], - function(EANReader) { - "use strict"; +function UPCReader() { + EANReader.call(this); +} - function UPCReader() { - EANReader.call(this); - } +var properties = { + FORMAT: {value: "upc_a", writeable: false} +}; - var properties = { - FORMAT: {value: "upc_a", writeable: false} - }; +UPCReader.prototype = Object.create(EANReader.prototype, properties); +UPCReader.prototype.constructor = UPCReader; - UPCReader.prototype = Object.create(EANReader.prototype, properties); - UPCReader.prototype.constructor = UPCReader; +UPCReader.prototype._decode = function() { + var result = EANReader.prototype._decode.call(this); - UPCReader.prototype._decode = function() { - var result = EANReader.prototype._decode.call(this); + if (result && result.code && result.code.length === 13 && result.code.charAt(0) === "0") { - if (result && result.code && result.code.length === 13 && result.code.charAt(0) === "0") { - - result.code = result.code.substring(1); - return result; - } - return null; - }; - - return (UPCReader); + result.code = result.code.substring(1); + return result; } -); \ No newline at end of file + return null; +}; + +export default EANReader; diff --git a/webpack.config.js b/webpack.config.js new file mode 100644 index 00000000..a32a3e3d --- /dev/null +++ b/webpack.config.js @@ -0,0 +1,34 @@ +var webpack = require('webpack'), + MyUmdPlugin = require('./plugins/umd'); + +module.exports = { + entry: [ + './src/quagga.js' + ], + devtool: 'source-map', + module: { + loaders: [{ + test: /\.jsx?$/, + exclude: /node_modules/, + loader: 'babel' + }] + }, + resolve: { + extensions: ['', '.js', '.jsx'] + }, + output: { + path: __dirname + '/dist', + publicPath: '/', + filename: 'quagga.js', + sourceMapFilename: 'quagga.map' + }, + devServer: { + contentBase: './', + hot: true + }, + plugins: [ + new MyUmdPlugin({ + library: 'Quagga' + }) + ] +}; diff --git a/webpack.config.min.js b/webpack.config.min.js new file mode 100644 index 00000000..2ec24fa5 --- /dev/null +++ b/webpack.config.min.js @@ -0,0 +1,8 @@ +var webpack = require('webpack'); +module.exports = require('./webpack.config.js'); + +module.exports.plugins.unshift( + new webpack.optimize.UglifyJsPlugin() +); + +module.exports.output.filename = 'quagga.min.js'; From 8668e79b636b6766dd7bb8940c8f4cedb90da245 Mon Sep 17 00:00:00 2001 From: Christoph Oberhofer Date: Sat, 3 Oct 2015 23:36:58 +0200 Subject: [PATCH 2/7] Fixed unit/integration testing; fixed a few linting errors; --- .eslintrc | 75 ++++++ Gruntfile.js | 15 +- dist/quagga.js | 35 +-- dist/quagga.map | 2 +- example/file_input.html | 4 +- {src => example}/vendor/jquery-1.9.0.min.js | 0 karma-integration.conf.js | 71 +++--- karma.conf.js | 95 ++++---- package.json | 4 + spec/array_helper.spec.js | 53 ----- spec/barcode_locator.spec.js | 131 ----------- spec/camera_access.spec.js | 123 ---------- spec/cv_utils.spec.js | 145 ------------ spec/events.spec.js | 114 --------- spec/integration.spec.js | 248 -------------------- spec/result_collector.spec.js | 103 -------- src/array_helper.js | 14 +- src/barcode_decoder.js | 66 +++--- src/barcode_locator.js | 120 ++++++---- src/barcode_reader.js | 20 +- src/bresenham.js | 35 ++- src/camera_access.js | 8 +- src/cluster.js | 28 ++- src/codabar_reader.js | 27 ++- src/code_128_reader.js | 74 +++--- src/code_39_reader.js | 29 ++- src/typedefs.js | 49 ++-- src/upc_reader.js | 4 +- test-main.js | 55 ----- test/integration/integration.spec.js | 245 +++++++++++++++++++ test/spec/array_helper.spec.js | 53 +++++ test/spec/barcode_locator.spec.js | 130 ++++++++++ test/spec/camera_access.spec.js | 116 +++++++++ test/spec/cv_utils.spec.js | 144 ++++++++++++ test/spec/events.spec.js | 114 +++++++++ test/spec/result_collector.spec.js | 103 ++++++++ test/test-main-integration.js | 8 + test/test-main.js | 8 + 38 files changed, 1359 insertions(+), 1309 deletions(-) create mode 100644 .eslintrc rename {src => example}/vendor/jquery-1.9.0.min.js (100%) delete mode 100644 spec/array_helper.spec.js delete mode 100644 spec/barcode_locator.spec.js delete mode 100644 spec/camera_access.spec.js delete mode 100644 spec/cv_utils.spec.js delete mode 100644 spec/events.spec.js delete mode 100644 spec/integration.spec.js delete mode 100644 spec/result_collector.spec.js delete mode 100644 test-main.js create mode 100644 test/integration/integration.spec.js create mode 100644 test/spec/array_helper.spec.js create mode 100644 test/spec/barcode_locator.spec.js create mode 100644 test/spec/camera_access.spec.js create mode 100644 test/spec/cv_utils.spec.js create mode 100644 test/spec/events.spec.js create mode 100644 test/spec/result_collector.spec.js create mode 100644 test/test-main-integration.js create mode 100644 test/test-main.js diff --git a/.eslintrc b/.eslintrc new file mode 100644 index 00000000..139e4f1f --- /dev/null +++ b/.eslintrc @@ -0,0 +1,75 @@ +{ + "settings" : { + "ecmascript": 6, + "jsx": true + }, + "env": { + "browser": true, + "node": true + }, + "ecmaFeatures": { + "blockBindings": true, + "forOf": true, + "blockBindings": true, + "defaultParams": true, + "globalReturn": false, + "modules": true, + "objectLiteralShorthandMethods": true, + "objectLiteralShorthandProperties": true, + "templateStrings": true, + "spread": true, + "jsx": true, + "arrowFunctions": true, + "classes": true, + "destructuring": true, + "objectLiteralComputedProperties": true + }, + "globals": {}, + "rules": { + "no-unused-expressions": 1, + "no-extra-boolean-cast": 1, + "no-multi-spaces": 2, + "no-underscore-dangle": 0, + "comma-dangle": 2, + "camelcase": 0, + "curly": 2, + "eqeqeq": 2, + "guard-for-in": 2, + "wrap-iife": 0, + "no-use-before-define": [1, "nofunc"], + "new-cap": 2, + "quotes": 0, + "strict": 0, + "no-caller": 2, + "no-empty": 1, + "no-new": 2, + "no-plusplus": 0, + "no-unused-vars": 1, + "no-trailing-spaces": 2, + + // STYLE + "max-params": [2, 7], + "key-spacing": [1, { + beforeColon: false, + afterColon: true + }], + "indent": [2, 4], + "brace-style": [2, "1tbs"], + "comma-spacing": [2, {before: false, after: true}], + "comma-style": [2, "last"], + "consistent-this": [1, "self"], + "eol-last": 0, + "new-cap": 0, + "new-parens": 2, + "no-array-constructor": 2, + "no-mixed-spaces-and-tabs": 2, + "no-multiple-empty-lines": 2, + "semi-spacing": 2, + "no-spaced-func": 1, + "padded-blocks": [2, "never"], + "semi": [2, "always"], + "space-after-keywords": [2, "always"], + "space-infix-ops": 2, + "max-len" : [1, 120] + } +} diff --git a/Gruntfile.js b/Gruntfile.js index 87c6aa55..2a7f61b1 100644 --- a/Gruntfile.js +++ b/Gruntfile.js @@ -1,8 +1,7 @@ module.exports = function(grunt) { - // Project configuration. grunt.initConfig({ - pkg : grunt.file.readJSON('package.json'), + pkg: grunt.file.readJSON('package.json'), karma: { unit: { configFile: 'karma.conf.js' @@ -10,26 +9,14 @@ module.exports = function(grunt) { integration: { configFile: 'karma-integration.conf.js' } - }, - jshint : { - all : ['Gruntfile.js', 'src/*.js'] } }); - // Load the plugin that provides the "uglify" task. - grunt.loadNpmTasks('grunt-contrib-jshint'); - grunt.loadNpmTasks('grunt-contrib-uglify'); - grunt.loadNpmTasks('grunt-requirejs'); grunt.loadNpmTasks('grunt-karma'); grunt.loadTasks('tasks'); - grunt.registerTask('build', ['check', 'requirejs']); - grunt.registerTask('check', ['jshint']); - grunt.registerTask('dist', ['build', 'uglify', 'uglyasm']); grunt.registerTask('test', ['karma']); grunt.registerTask('integrationtest', ['karma:integration']); - - grunt.registerTask('default', ['build']); }; diff --git a/dist/quagga.js b/dist/quagga.js index abbaa71b..95bf7c30 100644 --- a/dist/quagga.js +++ b/dist/quagga.js @@ -589,12 +589,9 @@ return /******/ (function(modules) { // webpackBootstrap 'use strict'; - Object.defineProperty(exports, '__esModule', { - value: true - }); if (typeof window !== 'undefined') { window.requestAnimFrame = (function () { - return window.requestAnimationFrame || window.webkitRequestAnimationFrame || window.mozRequestAnimationFrame || window.oRequestAnimationFrame || window.msRequestAnimationFrame || function ( /* function FrameRequestCallback */callback, /* DOMElement Element */element) { + return window.requestAnimationFrame || window.webkitRequestAnimationFrame || window.mozRequestAnimationFrame || window.oRequestAnimationFrame || window.msRequestAnimationFrame || function ( /* function FrameRequestCallback */callback) { window.setTimeout(callback, 1000 / 60); }; })(); @@ -611,9 +608,6 @@ return /******/ (function(modules) { // webpackBootstrap // the final |0 converts the unsigned value into a signed value return al * bl + (ah * bl + al * bh << 16 >>> 0) | 0; }; - - exports['default'] = {}; - module.exports = exports['default']; /***/ }, /* 3 */ @@ -7456,9 +7450,6 @@ return /******/ (function(modules) { // webpackBootstrap /* 20 */ /***/ function(module, exports, __webpack_require__) { - /* jshint undef: true, unused: true, browser:true, devel: true */ - /* global define */ - 'use strict'; Object.defineProperty(exports, '__esModule', { @@ -7692,7 +7683,6 @@ return /******/ (function(modules) { // webpackBootstrap patch; for (i = 0; i < _numPatches.x; i++) { for (j = 0; j < _numPatches.y; j++) { - x = _subImageWrapper.size.x * i; y = _subImageWrapper.size.y * j; @@ -7849,7 +7839,6 @@ return /******/ (function(modules) { // webpackBootstrap function describePatch(moments, patchPos, x, y) { var k, avg, - sum = 0, eligibleMoments = [], matchingMoments, patch, @@ -7866,7 +7855,6 @@ return /******/ (function(modules) { // webpackBootstrap // if at least 2 moments are found which have at least minComponentWeights covered if (eligibleMoments.length >= 2) { - sum = eligibleMoments.length; matchingMoments = similarMoments(eligibleMoments); avg = 0; // determine the similarity of the moments @@ -8775,6 +8763,7 @@ return /******/ (function(modules) { // webpackBootstrap } else if (typeof readerConfig === 'string') { reader = readerConfig; } + console.log("Before registering reader: ", reader); _barcodeReaders.push(new readers[reader](config)); }); console.log("Registered Readers: " + _barcodeReaders.map(function (reader) { @@ -9104,7 +9093,6 @@ return /******/ (function(modules) { // webpackBootstrap * @param {Object} result {line, min, max} */ Bresenham.toBinaryLine = function (result) { - var min = result.min, max = result.max, line = result.line, @@ -9364,8 +9352,7 @@ return /******/ (function(modules) { // webpackBootstrap rawResult = [], decodedCodes = [], shiftNext = false, - unshift, - lastCharacterWasPrintable; + unshift; if (startInfo === null) { return null; @@ -9431,9 +9418,6 @@ return /******/ (function(modules) { // webpackBootstrap if (code.code < 96) { result.push(String.fromCharCode(32 + code.code)); } else { - if (code.code != self.STOP_CODE) { - lastCharacterWasPrintable = false; - } switch (code.code) { case self.CODE_SHIFT: shiftNext = true; @@ -9472,7 +9456,7 @@ return /******/ (function(modules) { // webpackBootstrap done = true; } if (unshift) { - codeset = codeset == self.CODE_A ? self.CODE_B : self.CODE_A; + codeset = codeset === self.CODE_A ? self.CODE_B : self.CODE_A; } } @@ -9489,7 +9473,7 @@ return /******/ (function(modules) { // webpackBootstrap // checksum // Does not work correctly yet!!! startcode - endcode? checksum -= multiplier * rawResult[rawResult.length - 1]; - if (checksum % 103 != rawResult[rawResult.length - 1]) { + if (checksum % 103 !== rawResult[rawResult.length - 1]) { return null; } @@ -10281,7 +10265,6 @@ return /******/ (function(modules) { // webpackBootstrap counter[counterPos]++; } else { if (counterPos === counter.length - 1) { - // find start pattern if (self._toPattern(counter) === self.ASTERISK) { whiteSpaceMustStart = Math.floor(Math.max(0, patternStart - (i - patternStart) / 4)); @@ -10708,15 +10691,15 @@ return /******/ (function(modules) { // webpackBootstrap UPCReader.prototype._decode = function () { var result = _ean_reader2["default"].prototype._decode.call(this); + console.log("result", result); if (result && result.code && result.code.length === 13 && result.code.charAt(0) === "0") { - result.code = result.code.substring(1); return result; } return null; }; - exports["default"] = _ean_reader2["default"]; + exports["default"] = UPCReader; module.exports = exports["default"]; /***/ }, @@ -12901,9 +12884,9 @@ return /******/ 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{\n\t _inputStream.trigger(\"canrecord\");\n\t } else {\n\t return cb(err);\n\t }\n\t });\n\t }\n\t\n\t _inputStream.setAttribute(\"preload\", \"auto\");\n\t _inputStream.setAttribute(\"autoplay\", true);\n\t _inputStream.setInputStream(_config.inputStream);\n\t _inputStream.addEventListener(\"canrecord\", canRecord.bind(undefined, cb));\n\t}\n\t\n\tfunction canRecord(cb) {\n\t _barcode_locator2['default'].checkImageConstraints(_inputStream, _config.locator);\n\t initCanvas();\n\t _framegrabber = _frame_grabber2['default'].create(_inputStream, _canvasContainer.dom.image);\n\t initConfig();\n\t\n\t if (_config.numOfWorkers > 0) {\n\t initWorkers(function () {\n\t console.log(\"Workers created\");\n\t ready(cb);\n\t });\n\t } else {\n\t initializeData();\n\t ready(cb);\n\t }\n\t}\n\t\n\tfunction ready(cb) {\n\t _inputStream.play();\n\t cb();\n\t}\n\t\n\tfunction initCanvas() {\n\t if (typeof document !== \"undefined\") {\n\t var $viewport = document.querySelector(\"#interactive.viewport\");\n\t _canvasContainer.dom.image = document.querySelector(\"canvas.imgBuffer\");\n\t if (!_canvasContainer.dom.image) {\n\t _canvasContainer.dom.image = document.createElement(\"canvas\");\n\t _canvasContainer.dom.image.className = \"imgBuffer\";\n\t if ($viewport && _config.inputStream.type == \"ImageStream\") {\n\t $viewport.appendChild(_canvasContainer.dom.image);\n\t }\n\t }\n\t _canvasContainer.ctx.image = _canvasContainer.dom.image.getContext(\"2d\");\n\t _canvasContainer.dom.image.width = _inputStream.getCanvasSize().x;\n\t _canvasContainer.dom.image.height = _inputStream.getCanvasSize().y;\n\t\n\t _canvasContainer.dom.overlay = document.querySelector(\"canvas.drawingBuffer\");\n\t if (!_canvasContainer.dom.overlay) {\n\t _canvasContainer.dom.overlay = document.createElement(\"canvas\");\n\t _canvasContainer.dom.overlay.className = \"drawingBuffer\";\n\t if ($viewport) {\n\t $viewport.appendChild(_canvasContainer.dom.overlay);\n\t }\n\t var clearFix = document.createElement(\"br\");\n\t clearFix.setAttribute(\"clear\", \"all\");\n\t if ($viewport) {\n\t $viewport.appendChild(clearFix);\n\t }\n\t }\n\t _canvasContainer.ctx.overlay = _canvasContainer.dom.overlay.getContext(\"2d\");\n\t _canvasContainer.dom.overlay.width = _inputStream.getCanvasSize().x;\n\t _canvasContainer.dom.overlay.height = _inputStream.getCanvasSize().y;\n\t }\n\t}\n\t\n\tfunction initBuffers(imageWrapper) {\n\t if (imageWrapper) {\n\t _inputImageWrapper = imageWrapper;\n\t } else {\n\t _inputImageWrapper = new _image_wrapper2['default']({\n\t x: _inputStream.getWidth(),\n\t y: _inputStream.getHeight()\n\t });\n\t }\n\t\n\t console.log(_inputImageWrapper.size);\n\t _boxSize = [_glMatrix.vec2.clone([0, 0]), _glMatrix.vec2.clone([0, _inputImageWrapper.size.y]), _glMatrix.vec2.clone([_inputImageWrapper.size.x, _inputImageWrapper.size.y]), _glMatrix.vec2.clone([_inputImageWrapper.size.x, 0])];\n\t _barcode_locator2['default'].init(_inputImageWrapper, _config.locator);\n\t}\n\t\n\tfunction getBoundingBoxes() {\n\t if (_config.locate) {\n\t return _barcode_locator2['default'].locate();\n\t } else {\n\t return [[_glMatrix.vec2.clone(_boxSize[0]), _glMatrix.vec2.clone(_boxSize[1]), _glMatrix.vec2.clone(_boxSize[2]), _glMatrix.vec2.clone(_boxSize[3])]];\n\t }\n\t}\n\t\n\tfunction transformResult(result) {\n\t var topRight = _inputStream.getTopRight(),\n\t xOffset = topRight.x,\n\t yOffset = topRight.y,\n\t i;\n\t\n\t if (!result || xOffset === 0 && yOffset === 0) {\n\t return;\n\t }\n\t\n\t if (result.line && result.line.length === 2) {\n\t moveLine(result.line);\n\t }\n\t if (result.boxes && result.boxes.length > 0) {\n\t for (i = 0; i < result.boxes.length; i++) {\n\t moveBox(result.boxes[i]);\n\t }\n\t }\n\t\n\t function moveBox(box) {\n\t var corner = box.length;\n\t\n\t while (corner--) {\n\t box[corner][0] += xOffset;\n\t box[corner][1] += yOffset;\n\t }\n\t }\n\t\n\t function moveLine(line) {\n\t line[0].x += xOffset;\n\t line[0].y += yOffset;\n\t line[1].x += xOffset;\n\t line[1].y += yOffset;\n\t }\n\t}\n\t\n\tfunction publishResult(result, imageData) {\n\t if (_onUIThread) {\n\t transformResult(result);\n\t if (imageData && result && result.codeResult) {\n\t if (_resultCollector) {\n\t _resultCollector.addResult(imageData, _inputStream.getCanvasSize(), result.codeResult);\n\t }\n\t }\n\t }\n\t\n\t _events2['default'].publish(\"processed\", result);\n\t if (result && result.codeResult) {\n\t _events2['default'].publish(\"detected\", result);\n\t }\n\t}\n\t\n\tfunction locateAndDecode() {\n\t var result, boxes;\n\t\n\t boxes = getBoundingBoxes();\n\t if (boxes) {\n\t result = _decoder.decodeFromBoundingBoxes(boxes);\n\t result = result || {};\n\t result.boxes = boxes;\n\t publishResult(result, _inputImageWrapper.data);\n\t } else {\n\t publishResult();\n\t }\n\t}\n\t\n\tfunction update() {\n\t var availableWorker;\n\t\n\t if (_onUIThread) {\n\t if (_workerPool.length > 0) {\n\t availableWorker = _workerPool.filter(function (workerThread) {\n\t return !workerThread.busy;\n\t })[0];\n\t if (availableWorker) {\n\t _framegrabber.attachData(availableWorker.imageData);\n\t } else {\n\t return; // all workers are busy\n\t }\n\t } else {\n\t _framegrabber.attachData(_inputImageWrapper.data);\n\t }\n\t if (_framegrabber.grab()) {\n\t if (availableWorker) {\n\t availableWorker.busy = true;\n\t availableWorker.worker.postMessage({\n\t cmd: 'process',\n\t imageData: availableWorker.imageData\n\t }, [availableWorker.imageData.buffer]);\n\t } else {\n\t locateAndDecode();\n\t }\n\t }\n\t } else {\n\t locateAndDecode();\n\t }\n\t}\n\t\n\tfunction _start() {\n\t _stopped = false;\n\t (function frame() {\n\t if (!_stopped) {\n\t update();\n\t if (_onUIThread && _config.inputStream.type == \"LiveStream\") {\n\t window.requestAnimFrame(frame);\n\t }\n\t }\n\t })();\n\t}\n\t\n\tfunction initWorkers(cb) {\n\t var i;\n\t _workerPool = [];\n\t\n\t for (i = 0; i < _config.numOfWorkers; i++) {\n\t initWorker(workerInitialized);\n\t }\n\t\n\t function workerInitialized(workerThread) {\n\t _workerPool.push(workerThread);\n\t if (_workerPool.length >= _config.numOfWorkers) {\n\t cb();\n\t }\n\t }\n\t}\n\t\n\tfunction initWorker(cb) {\n\t var blobURL,\n\t workerThread = {\n\t worker: undefined,\n\t imageData: new Uint8Array(_inputStream.getWidth() * _inputStream.getHeight()),\n\t busy: true\n\t };\n\t\n\t blobURL = generateWorkerBlob();\n\t workerThread.worker = new Worker(blobURL);\n\t\n\t workerThread.worker.onmessage = function (e) {\n\t if (e.data.event === 'initialized') {\n\t URL.revokeObjectURL(blobURL);\n\t workerThread.busy = false;\n\t workerThread.imageData = new Uint8Array(e.data.imageData);\n\t console.log(\"Worker initialized\");\n\t return cb(workerThread);\n\t } else if (e.data.event === 'processed') {\n\t workerThread.imageData = new Uint8Array(e.data.imageData);\n\t workerThread.busy = false;\n\t publishResult(e.data.result, workerThread.imageData);\n\t } else if (e.data.event === 'error') {\n\t console.log(\"Worker error: \" + e.data.message);\n\t }\n\t };\n\t\n\t workerThread.worker.postMessage({\n\t cmd: 'init',\n\t size: { x: _inputStream.getWidth(), y: _inputStream.getHeight() },\n\t imageData: workerThread.imageData,\n\t config: _config\n\t }, [workerThread.imageData.buffer]);\n\t}\n\t\n\tfunction workerInterface(factory) {\n\t window = self;\n\t if (factory) {\n\t /* jshint ignore:start */\n\t var Quagga = factory();\n\t if (!Quagga) {\n\t self.postMessage({ 'event': 'error', message: 'Quagga could not be created' });\n\t return;\n\t }\n\t /* jshint ignore:end */\n\t }\n\t /* jshint ignore:start */\n\t var imageWrapper;\n\t\n\t self.onmessage = function (e) {\n\t if (e.data.cmd === 'init') {\n\t var config = e.data.config;\n\t config.numOfWorkers = 0;\n\t imageWrapper = new Quagga.ImageWrapper({\n\t x: e.data.size.x,\n\t y: e.data.size.y\n\t }, new Uint8Array(e.data.imageData));\n\t Quagga.init(config, ready, imageWrapper);\n\t Quagga.onProcessed(onProcessed);\n\t } else if (e.data.cmd === 'process') {\n\t imageWrapper.data = new Uint8Array(e.data.imageData);\n\t Quagga.start();\n\t } else if (e.data.cmd === 'setReaders') {\n\t Quagga.setReaders(e.data.readers);\n\t }\n\t };\n\t\n\t function onProcessed(result) {\n\t self.postMessage({ 'event': 'processed', imageData: imageWrapper.data, result: result }, [imageWrapper.data.buffer]);\n\t }\n\t\n\t function ready() {\n\t self.postMessage({ 'event': 'initialized', imageData: imageWrapper.data }, [imageWrapper.data.buffer]);\n\t }\n\t /* jshint ignore:end */\n\t}\n\t\n\tfunction generateWorkerBlob() {\n\t var blob, factorySource;\n\t\n\t /* jshint ignore:start */\n\t if (typeof __factorySource__ !== 'undefined') {\n\t factorySource = __factorySource__;\n\t }\n\t /* jshint ignore:end */\n\t\n\t blob = new Blob(['(' + workerInterface.toString() + ')(' + factorySource + ');'], { type: 'text/javascript' });\n\t\n\t return window.URL.createObjectURL(blob);\n\t}\n\t\n\tfunction _setReaders(readers) {\n\t if (_decoder) {\n\t _decoder.setReaders(readers);\n\t } else if (_onUIThread && _workerPool.length > 0) {\n\t _workerPool.forEach(function (workerThread) {\n\t workerThread.worker.postMessage({ cmd: 'setReaders', readers: readers });\n\t });\n\t }\n\t}\n\t\n\texports['default'] = {\n\t init: function init(config, cb, imageWrapper) {\n\t _config = merge({}, _config3['default'], config);\n\t if (imageWrapper) {\n\t _onUIThread = false;\n\t initializeData(imageWrapper);\n\t return cb();\n\t } else {\n\t initInputStream(cb);\n\t }\n\t },\n\t start: function start() {\n\t _start();\n\t },\n\t stop: function stop() {\n\t _stopped = true;\n\t _workerPool.forEach(function (workerThread) {\n\t workerThread.worker.terminate();\n\t console.log(\"Worker terminated!\");\n\t });\n\t _workerPool.length = 0;\n\t if (_config.inputStream.type === \"LiveStream\") {\n\t _camera_access2['default'].release();\n\t _inputStream.clearEventHandlers();\n\t }\n\t },\n\t pause: function pause() {\n\t _stopped = true;\n\t },\n\t onDetected: function onDetected(callback) {\n\t _events2['default'].subscribe(\"detected\", callback);\n\t },\n\t offDetected: function offDetected(callback) {\n\t _events2['default'].unsubscribe(\"detected\", callback);\n\t },\n\t onProcessed: function onProcessed(callback) {\n\t _events2['default'].subscribe(\"processed\", callback);\n\t },\n\t offProcessed: function offProcessed(callback) {\n\t _events2['default'].unsubscribe(\"processed\", callback);\n\t },\n\t setReaders: function setReaders(readers) {\n\t _setReaders(readers);\n\t },\n\t registerResultCollector: function registerResultCollector(resultCollector) {\n\t if (resultCollector && typeof resultCollector.addResult === 'function') {\n\t _resultCollector = resultCollector;\n\t }\n\t },\n\t canvas: _canvasContainer,\n\t decodeSingle: function decodeSingle(config, resultCallback) {\n\t config = merge({\n\t inputStream: {\n\t type: \"ImageStream\",\n\t sequence: false,\n\t size: 800,\n\t src: config.src\n\t },\n\t numOfWorkers: 1,\n\t locator: {\n\t halfSample: false\n\t }\n\t }, config);\n\t this.init(config, function () {\n\t _events2['default'].once(\"processed\", function (result) {\n\t _stopped = true;\n\t resultCallback.call(null, result);\n\t }, true);\n\t _start();\n\t });\n\t },\n\t ImageWrapper: _image_wrapper2['default'],\n\t ImageDebug: _image_debug2['default'],\n\t ResultCollector: _result_collector2['default']\n\t};\n\tmodule.exports = exports['default'];\n\n/***/ },\n/* 2 */\n/***/ function(module, exports) {\n\n\t/*\n\t * typedefs.js\n\t * Normalizes browser-specific prefixes\n\t */\n\t\n\t'use strict';\n\t\n\tObject.defineProperty(exports, '__esModule', {\n\t value: true\n\t});\n\tif (typeof window !== 'undefined') {\n\t window.requestAnimFrame = (function () {\n\t return window.requestAnimationFrame || window.webkitRequestAnimationFrame || window.mozRequestAnimationFrame || window.oRequestAnimationFrame || window.msRequestAnimationFrame || function ( /* function FrameRequestCallback */callback, /* DOMElement Element */element) {\n\t window.setTimeout(callback, 1000 / 60);\n\t };\n\t })();\n\t\n\t navigator.getUserMedia = navigator.getUserMedia || navigator.webkitGetUserMedia || navigator.mozGetUserMedia || navigator.msGetUserMedia;\n\t window.URL = window.URL || window.webkitURL || window.mozURL || window.msURL;\n\t}\n\tMath.imul = Math.imul || function (a, b) {\n\t var ah = a >>> 16 & 0xffff,\n\t al = a & 0xffff,\n\t bh = b >>> 16 & 0xffff,\n\t bl = b & 0xffff;\n\t // the shift by 0 fixes the sign on the high part\n\t // the final |0 converts the unsigned value into a signed value\n\t return al * bl + (ah * bl + al * bh << 16 >>> 0) | 0;\n\t};\n\t\n\texports['default'] = {};\n\tmodule.exports = exports['default'];\n\n/***/ },\n/* 3 */\n/***/ function(module, exports, __webpack_require__) {\n\n\t'use strict';\n\t\n\tObject.defineProperty(exports, '__esModule', {\n\t value: true\n\t});\n\t\n\tfunction _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }\n\t\n\tvar _image_loader = __webpack_require__(4);\n\t\n\tvar _image_loader2 = _interopRequireDefault(_image_loader);\n\t\n\tvar InputStream = {};\n\tInputStream.createVideoStream = function (video) {\n\t var that = {},\n\t _config = null,\n\t _eventNames = ['canrecord', 'ended'],\n\t _eventHandlers = {},\n\t _calculatedWidth,\n\t _calculatedHeight,\n\t _topRight = { x: 0, y: 0 },\n\t _canvasSize = { x: 0, y: 0 };\n\t\n\t function initSize() {\n\t var width = video.videoWidth,\n\t height = video.videoHeight;\n\t\n\t _calculatedWidth = _config.size ? width / height > 1 ? _config.size : Math.floor(width / height * _config.size) : width;\n\t _calculatedHeight = _config.size ? width / height > 1 ? Math.floor(height / width * _config.size) : _config.size : height;\n\t\n\t _canvasSize.x = _calculatedWidth;\n\t _canvasSize.y = _calculatedHeight;\n\t }\n\t\n\t that.getRealWidth = function () {\n\t return video.videoWidth;\n\t };\n\t\n\t that.getRealHeight = function () {\n\t return video.videoHeight;\n\t };\n\t\n\t that.getWidth = function () {\n\t return _calculatedWidth;\n\t };\n\t\n\t that.getHeight = function () {\n\t return _calculatedHeight;\n\t };\n\t\n\t that.setWidth = function (width) {\n\t _calculatedWidth = width;\n\t };\n\t\n\t that.setHeight = function (height) {\n\t _calculatedHeight = height;\n\t };\n\t\n\t that.setInputStream = function (config) {\n\t _config = config;\n\t video.src = typeof config.src !== 'undefined' ? config.src : '';\n\t };\n\t\n\t that.ended = function () {\n\t return video.ended;\n\t };\n\t\n\t that.getConfig = function () {\n\t return _config;\n\t };\n\t\n\t that.setAttribute = function (name, value) {\n\t video.setAttribute(name, value);\n\t };\n\t\n\t that.pause = function () {\n\t video.pause();\n\t };\n\t\n\t that.play = function () {\n\t video.play();\n\t };\n\t\n\t that.setCurrentTime = function (time) {\n\t if (_config.type !== \"LiveStream\") video.currentTime = time;\n\t };\n\t\n\t that.addEventListener = function (event, f, bool) {\n\t if (_eventNames.indexOf(event) !== -1) {\n\t if (!_eventHandlers[event]) {\n\t _eventHandlers[event] = [];\n\t }\n\t _eventHandlers[event].push(f);\n\t } else {\n\t video.addEventListener(event, f, bool);\n\t }\n\t };\n\t\n\t that.clearEventHandlers = function () {\n\t _eventNames.forEach(function (eventName) {\n\t var handlers = _eventHandlers[eventName];\n\t if (handlers && handlers.length > 0) {\n\t handlers.forEach(function (handler) {\n\t video.removeEventListener(eventName, handler);\n\t });\n\t }\n\t });\n\t };\n\t\n\t that.trigger = function (eventName, args) {\n\t var j,\n\t handlers = _eventHandlers[eventName];\n\t\n\t if (eventName === 'canrecord') {\n\t initSize();\n\t }\n\t if (handlers && handlers.length > 0) {\n\t for (j = 0; j < handlers.length; j++) {\n\t handlers[j].apply(that, args);\n\t }\n\t }\n\t };\n\t\n\t that.setTopRight = function (topRight) {\n\t _topRight.x = topRight.x;\n\t _topRight.y = topRight.y;\n\t };\n\t\n\t that.getTopRight = function () {\n\t return _topRight;\n\t };\n\t\n\t that.setCanvasSize = function (size) {\n\t _canvasSize.x = size.x;\n\t _canvasSize.y = size.y;\n\t };\n\t\n\t that.getCanvasSize = function () {\n\t return _canvasSize;\n\t };\n\t\n\t that.getFrame = function () {\n\t return video;\n\t };\n\t\n\t return that;\n\t};\n\t\n\tInputStream.createLiveStream = function (video) {\n\t video.setAttribute(\"autoplay\", true);\n\t var that = InputStream.createVideoStream(video);\n\t\n\t that.ended = function () {\n\t return false;\n\t };\n\t\n\t return that;\n\t};\n\t\n\tInputStream.createImageStream = function () {\n\t var that = {};\n\t var _config = null;\n\t\n\t var width = 0,\n\t height = 0,\n\t frameIdx = 0,\n\t paused = true,\n\t loaded = false,\n\t imgArray = null,\n\t size = 0,\n\t offset = 1,\n\t baseUrl = null,\n\t ended = false,\n\t calculatedWidth,\n\t calculatedHeight,\n\t _eventNames = ['canrecord', 'ended'],\n\t _eventHandlers = {},\n\t _topRight = { x: 0, y: 0 },\n\t _canvasSize = { x: 0, y: 0 };\n\t\n\t function loadImages() {\n\t loaded = false;\n\t _image_loader2['default'].load(baseUrl, function (imgs) {\n\t imgArray = imgs;\n\t width = imgs[0].width;\n\t height = imgs[0].height;\n\t calculatedWidth = _config.size ? width / height > 1 ? _config.size : Math.floor(width / height * _config.size) : width;\n\t calculatedHeight = _config.size ? width / height > 1 ? Math.floor(height / width * _config.size) : _config.size : height;\n\t _canvasSize.x = calculatedWidth;\n\t _canvasSize.y = calculatedHeight;\n\t loaded = true;\n\t frameIdx = 0;\n\t setTimeout(function () {\n\t publishEvent(\"canrecord\", []);\n\t }, 0);\n\t }, offset, size, _config.sequence);\n\t }\n\t\n\t function publishEvent(eventName, args) {\n\t var j,\n\t handlers = _eventHandlers[eventName];\n\t\n\t if (handlers && handlers.length > 0) {\n\t for (j = 0; j < handlers.length; j++) {\n\t handlers[j].apply(that, args);\n\t }\n\t }\n\t }\n\t\n\t that.trigger = publishEvent;\n\t\n\t that.getWidth = function () {\n\t return calculatedWidth;\n\t };\n\t\n\t that.getHeight = function () {\n\t return calculatedHeight;\n\t };\n\t\n\t that.setWidth = function (width) {\n\t calculatedWidth = width;\n\t };\n\t\n\t that.setHeight = function (height) {\n\t calculatedHeight = height;\n\t };\n\t\n\t that.getRealWidth = function () {\n\t return width;\n\t };\n\t\n\t that.getRealHeight = function () {\n\t return height;\n\t };\n\t\n\t that.setInputStream = function (stream) {\n\t _config = stream;\n\t if (stream.sequence === false) {\n\t baseUrl = stream.src;\n\t size = 1;\n\t } else {\n\t baseUrl = stream.src;\n\t size = stream.length;\n\t }\n\t loadImages();\n\t };\n\t\n\t that.ended = function () {\n\t return ended;\n\t };\n\t\n\t that.setAttribute = function () {};\n\t\n\t that.getConfig = function () {\n\t return _config;\n\t };\n\t\n\t that.pause = function () {\n\t paused = true;\n\t };\n\t\n\t that.play = function () {\n\t paused = false;\n\t };\n\t\n\t that.setCurrentTime = function (time) {\n\t frameIdx = time;\n\t };\n\t\n\t that.addEventListener = function (event, f) {\n\t if (_eventNames.indexOf(event) !== -1) {\n\t if (!_eventHandlers[event]) {\n\t _eventHandlers[event] = [];\n\t }\n\t _eventHandlers[event].push(f);\n\t }\n\t };\n\t\n\t that.setTopRight = function (topRight) {\n\t _topRight.x = topRight.x;\n\t _topRight.y = topRight.y;\n\t };\n\t\n\t that.getTopRight = function () {\n\t return _topRight;\n\t };\n\t\n\t that.setCanvasSize = function (size) {\n\t _canvasSize.x = size.x;\n\t _canvasSize.y = size.y;\n\t };\n\t\n\t that.getCanvasSize = function () {\n\t return _canvasSize;\n\t };\n\t\n\t that.getFrame = function () {\n\t var frame;\n\t\n\t if (!loaded) {\n\t return null;\n\t }\n\t if (!paused) {\n\t frame = imgArray[frameIdx];\n\t if (frameIdx < size - 1) {\n\t frameIdx++;\n\t } else {\n\t setTimeout(function () {\n\t ended = true;\n\t publishEvent(\"ended\", []);\n\t }, 0);\n\t }\n\t }\n\t return frame;\n\t };\n\t\n\t return that;\n\t};\n\t\n\texports['default'] = InputStream;\n\tmodule.exports = exports['default'];\n\n/***/ },\n/* 4 */\n/***/ function(module, exports) {\n\n\t\"use strict\";\n\t\n\tObject.defineProperty(exports, \"__esModule\", {\n\t value: true\n\t});\n\tvar ImageLoader = {};\n\tImageLoader.load = function (directory, callback, offset, size, sequence) {\n\t var htmlImagesSrcArray = new Array(size),\n\t htmlImagesArray = new Array(htmlImagesSrcArray.length),\n\t i,\n\t img,\n\t num;\n\t\n\t if (sequence === false) {\n\t htmlImagesSrcArray[0] = directory;\n\t } else {\n\t for (i = 0; i < htmlImagesSrcArray.length; i++) {\n\t num = offset + i;\n\t htmlImagesSrcArray[i] = directory + \"image-\" + (\"00\" + num).slice(-3) + \".jpg\";\n\t }\n\t }\n\t htmlImagesArray.notLoaded = [];\n\t htmlImagesArray.addImage = function (img) {\n\t htmlImagesArray.notLoaded.push(img);\n\t };\n\t htmlImagesArray.loaded = function (loadedImg) {\n\t var notloadedImgs = htmlImagesArray.notLoaded;\n\t for (var x = 0; x < notloadedImgs.length; x++) {\n\t if (notloadedImgs[x] == loadedImg) {\n\t notloadedImgs.splice(x, 1);\n\t for (var y = 0; y < htmlImagesSrcArray.length; y++) {\n\t var imgName = htmlImagesSrcArray[y].substr(htmlImagesSrcArray[y].lastIndexOf(\"/\"));\n\t if (loadedImg.src.lastIndexOf(imgName) != -1) {\n\t htmlImagesArray[y] = loadedImg;\n\t break;\n\t }\n\t }\n\t break;\n\t }\n\t }\n\t if (notloadedImgs.length === 0) {\n\t console.log(\"Images loaded\");\n\t callback.apply(null, [htmlImagesArray]);\n\t }\n\t };\n\t\n\t for (i = 0; i < htmlImagesSrcArray.length; i++) {\n\t img = new Image();\n\t htmlImagesArray.addImage(img);\n\t addOnloadHandler(img, htmlImagesArray);\n\t img.src = htmlImagesSrcArray[i];\n\t }\n\t};\n\t\n\tfunction addOnloadHandler(img, htmlImagesArray) {\n\t img.onload = function () {\n\t htmlImagesArray.loaded(this);\n\t };\n\t}\n\t\n\texports[\"default\"] = ImageLoader;\n\tmodule.exports = exports[\"default\"];\n\n/***/ },\n/* 5 */\n/***/ function(module, exports, __webpack_require__) {\n\n\t'use strict';\n\t\n\tObject.defineProperty(exports, '__esModule', {\n\t value: true\n\t});\n\t\n\tfunction _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }\n\t\n\tvar _subImage = __webpack_require__(6);\n\t\n\tvar _subImage2 = _interopRequireDefault(_subImage);\n\t\n\tvar _cv_utils = __webpack_require__(7);\n\t\n\tvar _cv_utils2 = _interopRequireDefault(_cv_utils);\n\t\n\tvar _array_helper = __webpack_require__(19);\n\t\n\tvar _array_helper2 = _interopRequireDefault(_array_helper);\n\t\n\tvar _glMatrix = __webpack_require__(9);\n\t\n\t/**\n\t * Represents a basic image combining the data and size.\n\t * In addition, some methods for manipulation are contained.\n\t * @param size {x,y} The size of the image in pixel\n\t * @param data {Array} If given, a flat array containing the pixel data\n\t * @param ArrayType {Type} If given, the desired DataType of the Array (may be typed/non-typed)\n\t * @param initialize {Boolean} Indicating if the array should be initialized on creation.\n\t * @returns {ImageWrapper}\n\t */\n\tfunction ImageWrapper(size, data, ArrayType, initialize) {\n\t if (!data) {\n\t if (ArrayType) {\n\t this.data = new ArrayType(size.x * size.y);\n\t if (ArrayType === Array && initialize) {\n\t _array_helper2['default'].init(this.data, 0);\n\t }\n\t } else {\n\t this.data = new Uint8Array(size.x * size.y);\n\t if (Uint8Array === Array && initialize) {\n\t _array_helper2['default'].init(this.data, 0);\n\t }\n\t }\n\t } else {\n\t this.data = data;\n\t }\n\t this.size = size;\n\t}\n\t\n\t/**\n\t * tests if a position is within the image with a given offset\n\t * @param imgRef {x, y} The location to test\n\t * @param border Number the padding value in pixel\n\t * @returns {Boolean} true if location inside the image's border, false otherwise\n\t * @see cvd/image.h\n\t */\n\tImageWrapper.prototype.inImageWithBorder = function (imgRef, border) {\n\t return imgRef.x >= border && imgRef.y >= border && imgRef.x < this.size.x - border && imgRef.y < this.size.y - border;\n\t};\n\t\n\t/**\n\t * Transforms an image according to the given affine-transformation matrix.\n\t * @param inImg ImageWrapper a image containing the information to be extracted.\n\t * @param outImg ImageWrapper the image to be filled. The whole image out image is filled by the in image.\n\t * @param M mat2 the matrix used to map point in the out matrix to those in the in matrix\n\t * @param inOrig vec2 origin in the in image\n\t * @param outOrig vec2 origin in the out image\n\t * @returns Number the number of pixels not in the in image\n\t * @see cvd/vision.h\n\t */\n\tImageWrapper.transform = function (inImg, outImg, M, inOrig, outOrig) {\n\t var w = outImg.size.x,\n\t h = outImg.size.y,\n\t iw = inImg.size.x,\n\t ih = inImg.size.y;\n\t var across = _glMatrix.vec2.clone([M[0], M[2]]);\n\t var down = _glMatrix.vec2.clone([M[1], M[3]]);\n\t var defaultValue = 0;\n\t\n\t var p0 = _glMatrix.vec2.subtract(inOrig, _glMatrix.mat2.xVec2(M, outOrig, _glMatrix.vec2.clone()), _glMatrix.vec2.clone());\n\t\n\t var min_x = p0[0],\n\t min_y = p0[1];\n\t var max_x = min_x,\n\t max_y = min_y;\n\t var p, i, j;\n\t\n\t var sampleFunc = ImageWrapper.sample;\n\t\n\t if (across[0] < 0) min_x += w * across[0];else max_x += w * across[0];\n\t\n\t if (down[0] < 0) min_x += h * down[0];else max_x += h * down[0];\n\t\n\t if (across[1] < 0) min_y += w * across[1];else max_y += w * across[1];\n\t\n\t if (down[1] < 0) min_y += h * down[1];else max_y += h * down[1];\n\t\n\t var carrigeReturn = _glMatrix.vec2.subtract(down, _glMatrix.vec2.scale(across, w, _glMatrix.vec2.clone()), _glMatrix.vec2.clone());\n\t\n\t if (min_x >= 0 && min_y >= 0 && max_x < iw - 1 && max_y < ih - 1) {\n\t p = p0;\n\t for (i = 0; i < h; ++i, _glMatrix.vec2.add(p, carrigeReturn)) for (j = 0; j < w; ++j, _glMatrix.vec2.add(p, across)) outImg.set(j, i, sampleFunc(inImg, p[0], p[1]));\n\t return 0;\n\t } else {\n\t var x_bound = iw - 1;\n\t var y_bound = ih - 1;\n\t var count = 0;\n\t p = p0;\n\t for (i = 0; i < h; ++i, _glMatrix.vec2.add(p, carrigeReturn)) {\n\t for (j = 0; j < w; ++j, _glMatrix.vec2.add(p, across)) {\n\t if (0 <= p[0] && 0 <= p[1] && p[0] < x_bound && p[1] < y_bound) {\n\t outImg.set(j, i, sampleFunc(inImg, p[0], p[1]));\n\t } else {\n\t outImg.set(j, i, defaultValue);++count;\n\t }\n\t }\n\t }\n\t return count;\n\t }\n\t};\n\t\n\t/**\n\t * Performs bilinear sampling\n\t * @param inImg Image to extract sample from\n\t * @param x the x-coordinate\n\t * @param y the y-coordinate\n\t * @returns the sampled value\n\t * @see cvd/vision.h\n\t */\n\tImageWrapper.sample = function (inImg, x, y) {\n\t var lx = Math.floor(x);\n\t var ly = Math.floor(y);\n\t var w = inImg.size.x;\n\t var base = ly * inImg.size.x + lx;\n\t var a = inImg.data[base + 0];\n\t var b = inImg.data[base + 1];\n\t var c = inImg.data[base + w];\n\t var d = inImg.data[base + w + 1];\n\t var e = a - b;\n\t x -= lx;\n\t y -= ly;\n\t\n\t var result = Math.floor(x * (y * (e - c + d) - e) + y * (c - a) + a);\n\t return result;\n\t};\n\t\n\t/**\n\t * Initializes a given array. Sets each element to zero.\n\t * @param array {Array} The array to initialize\n\t */\n\tImageWrapper.clearArray = function (array) {\n\t var l = array.length;\n\t while (l--) {\n\t array[l] = 0;\n\t }\n\t};\n\t\n\t/**\n\t * Creates a {SubImage} from the current image ({this}).\n\t * @param from {ImageRef} The position where to start the {SubImage} from. (top-left corner)\n\t * @param size {ImageRef} The size of the resulting image\n\t * @returns {SubImage} A shared part of the original image\n\t */\n\tImageWrapper.prototype.subImage = function (from, size) {\n\t return new _subImage2['default'](from, size, this);\n\t};\n\t\n\t/**\n\t * Creates an {ImageWrapper) and copies the needed underlying image-data area\n\t * @param imageWrapper {ImageWrapper} The target {ImageWrapper} where the data should be copied\n\t * @param from {ImageRef} The location where to copy from (top-left location)\n\t */\n\tImageWrapper.prototype.subImageAsCopy = function (imageWrapper, from) {\n\t var sizeY = imageWrapper.size.y,\n\t sizeX = imageWrapper.size.x;\n\t var x, y;\n\t for (x = 0; x < sizeX; x++) {\n\t for (y = 0; y < sizeY; y++) {\n\t imageWrapper.data[y * sizeX + x] = this.data[(from.y + y) * this.size.x + from.x + x];\n\t }\n\t }\n\t};\n\t\n\tImageWrapper.prototype.copyTo = function (imageWrapper) {\n\t var length = this.data.length,\n\t srcData = this.data,\n\t dstData = imageWrapper.data;\n\t\n\t while (length--) {\n\t dstData[length] = srcData[length];\n\t }\n\t};\n\t\n\t/**\n\t * Retrieves a given pixel position from the image\n\t * @param x {Number} The x-position\n\t * @param y {Number} The y-position\n\t * @returns {Number} The grayscale value at the pixel-position\n\t */\n\tImageWrapper.prototype.get = function (x, y) {\n\t return this.data[y * this.size.x + x];\n\t};\n\t\n\t/**\n\t * Retrieves a given pixel position from the image\n\t * @param x {Number} The x-position\n\t * @param y {Number} The y-position\n\t * @returns {Number} The grayscale value at the pixel-position\n\t */\n\tImageWrapper.prototype.getSafe = function (x, y) {\n\t var i;\n\t\n\t if (!this.indexMapping) {\n\t this.indexMapping = {\n\t x: [],\n\t y: []\n\t };\n\t for (i = 0; i < this.size.x; i++) {\n\t this.indexMapping.x[i] = i;\n\t this.indexMapping.x[i + this.size.x] = i;\n\t }\n\t for (i = 0; i < this.size.y; i++) {\n\t this.indexMapping.y[i] = i;\n\t this.indexMapping.y[i + this.size.y] = i;\n\t }\n\t }\n\t return this.data[this.indexMapping.y[y + this.size.y] * this.size.x + this.indexMapping.x[x + this.size.x]];\n\t};\n\t\n\t/**\n\t * Sets a given pixel position in the image\n\t * @param x {Number} The x-position\n\t * @param y {Number} The y-position\n\t * @param value {Number} The grayscale value to set\n\t * @returns {ImageWrapper} The Image itself (for possible chaining)\n\t */\n\tImageWrapper.prototype.set = function (x, y, value) {\n\t this.data[y * this.size.x + x] = value;\n\t return this;\n\t};\n\t\n\t/**\n\t * Sets the border of the image (1 pixel) to zero\n\t */\n\tImageWrapper.prototype.zeroBorder = function () {\n\t var i,\n\t width = this.size.x,\n\t height = this.size.y,\n\t data = this.data;\n\t for (i = 0; i < width; i++) {\n\t data[i] = data[(height - 1) * width + i] = 0;\n\t }\n\t for (i = 1; i < height - 1; i++) {\n\t data[i * width] = data[i * width + (width - 1)] = 0;\n\t }\n\t};\n\t\n\t/**\n\t * Inverts a binary image in place\n\t */\n\tImageWrapper.prototype.invert = function () {\n\t var data = this.data,\n\t length = data.length;\n\t\n\t while (length--) {\n\t data[length] = data[length] ? 0 : 1;\n\t }\n\t};\n\t\n\tImageWrapper.prototype.convolve = function (kernel) {\n\t var x,\n\t y,\n\t kx,\n\t ky,\n\t kSize = kernel.length / 2 | 0,\n\t accu = 0;\n\t for (y = 0; y < this.size.y; y++) {\n\t for (x = 0; x < this.size.x; x++) {\n\t accu = 0;\n\t for (ky = -kSize; ky <= kSize; ky++) {\n\t for (kx = -kSize; kx <= kSize; kx++) {\n\t accu += kernel[ky + kSize][kx + kSize] * this.getSafe(x + kx, y + ky);\n\t }\n\t }\n\t this.data[y * this.size.x + x] = accu;\n\t }\n\t }\n\t};\n\t\n\tImageWrapper.prototype.moments = function (labelcount) {\n\t var data = this.data,\n\t x,\n\t y,\n\t height = this.size.y,\n\t width = this.size.x,\n\t val,\n\t ysq,\n\t labelsum = [],\n\t i,\n\t label,\n\t mu11,\n\t mu02,\n\t mu20,\n\t x_,\n\t y_,\n\t tmp,\n\t result = [],\n\t PI = Math.PI,\n\t PI_4 = PI / 4;\n\t\n\t if (labelcount <= 0) {\n\t return result;\n\t }\n\t\n\t for (i = 0; i < labelcount; i++) {\n\t labelsum[i] = {\n\t m00: 0,\n\t m01: 0,\n\t m10: 0,\n\t m11: 0,\n\t m02: 0,\n\t m20: 0,\n\t theta: 0,\n\t rad: 0\n\t };\n\t }\n\t\n\t for (y = 0; y < height; y++) {\n\t ysq = y * y;\n\t for (x = 0; x < width; x++) {\n\t val = data[y * width + x];\n\t if (val > 0) {\n\t label = labelsum[val - 1];\n\t label.m00 += 1;\n\t label.m01 += y;\n\t label.m10 += x;\n\t label.m11 += x * y;\n\t label.m02 += ysq;\n\t label.m20 += x * x;\n\t }\n\t }\n\t }\n\t\n\t for (i = 0; i < labelcount; i++) {\n\t label = labelsum[i];\n\t if (!isNaN(label.m00) && label.m00 !== 0) {\n\t x_ = label.m10 / label.m00;\n\t y_ = label.m01 / label.m00;\n\t mu11 = label.m11 / label.m00 - x_ * y_;\n\t mu02 = label.m02 / label.m00 - y_ * y_;\n\t mu20 = label.m20 / label.m00 - x_ * x_;\n\t tmp = (mu02 - mu20) / (2 * mu11);\n\t tmp = 0.5 * Math.atan(tmp) + (mu11 >= 0 ? PI_4 : -PI_4) + PI;\n\t label.theta = (tmp * 180 / PI + 90) % 180 - 90;\n\t if (label.theta < 0) {\n\t label.theta += 180;\n\t }\n\t label.rad = tmp > PI ? tmp - PI : tmp;\n\t label.vec = _glMatrix.vec2.clone([Math.cos(tmp), Math.sin(tmp)]);\n\t result.push(label);\n\t }\n\t }\n\t\n\t return result;\n\t};\n\t\n\t/**\n\t * Displays the {ImageWrapper} in a given canvas\n\t * @param canvas {Canvas} The canvas element to write to\n\t * @param scale {Number} Scale which is applied to each pixel-value\n\t */\n\tImageWrapper.prototype.show = function (canvas, scale) {\n\t var ctx, frame, data, current, pixel, x, y;\n\t\n\t if (!scale) {\n\t scale = 1.0;\n\t }\n\t ctx = canvas.getContext('2d');\n\t canvas.width = this.size.x;\n\t canvas.height = this.size.y;\n\t frame = ctx.getImageData(0, 0, canvas.width, canvas.height);\n\t data = frame.data;\n\t current = 0;\n\t for (y = 0; y < this.size.y; y++) {\n\t for (x = 0; x < this.size.x; x++) {\n\t pixel = y * this.size.x + x;\n\t current = this.get(x, y) * scale;\n\t data[pixel * 4 + 0] = current;\n\t data[pixel * 4 + 1] = current;\n\t data[pixel * 4 + 2] = current;\n\t data[pixel * 4 + 3] = 255;\n\t }\n\t }\n\t //frame.data = data;\n\t ctx.putImageData(frame, 0, 0);\n\t};\n\t\n\t/**\n\t * Displays the {SubImage} in a given canvas\n\t * @param canvas {Canvas} The canvas element to write to\n\t * @param scale {Number} Scale which is applied to each pixel-value\n\t */\n\tImageWrapper.prototype.overlay = function (canvas, scale, from) {\n\t if (!scale || scale < 0 || scale > 360) {\n\t scale = 360;\n\t }\n\t var hsv = [0, 1, 1];\n\t var rgb = [0, 0, 0];\n\t var whiteRgb = [255, 255, 255];\n\t var blackRgb = [0, 0, 0];\n\t var result = [];\n\t var ctx = canvas.getContext('2d');\n\t var frame = ctx.getImageData(from.x, from.y, this.size.x, this.size.y);\n\t var data = frame.data;\n\t var length = this.data.length;\n\t while (length--) {\n\t hsv[0] = this.data[length] * scale;\n\t result = hsv[0] <= 0 ? whiteRgb : hsv[0] >= 360 ? blackRgb : _cv_utils2['default'].hsv2rgb(hsv, rgb);\n\t data[length * 4 + 0] = result[0];\n\t data[length * 4 + 1] = result[1];\n\t data[length * 4 + 2] = result[2];\n\t data[length * 4 + 3] = 255;\n\t }\n\t ctx.putImageData(frame, from.x, from.y);\n\t};\n\t\n\texports['default'] = ImageWrapper;\n\tmodule.exports = exports['default'];\n\n/***/ },\n/* 6 */\n/***/ function(module, exports) {\n\n\t/**\n\t * Construct representing a part of another {ImageWrapper}. Shares data\n\t * between the parent and the child.\n\t * @param from {ImageRef} The position where to start the {SubImage} from. (top-left corner)\n\t * @param size {ImageRef} The size of the resulting image\n\t * @param I {ImageWrapper} The {ImageWrapper} to share from\n\t * @returns {SubImage} A shared part of the original image\n\t */\n\t'use strict';\n\t\n\tObject.defineProperty(exports, '__esModule', {\n\t value: true\n\t});\n\tfunction SubImage(from, size, I) {\n\t if (!I) {\n\t I = {\n\t data: null,\n\t size: size\n\t };\n\t }\n\t this.data = I.data;\n\t this.originalSize = I.size;\n\t this.I = I;\n\t\n\t this.from = from;\n\t this.size = size;\n\t}\n\t\n\t/**\n\t * Displays the {SubImage} in a given canvas\n\t * @param canvas {Canvas} The canvas element to write to\n\t * @param scale {Number} Scale which is applied to each pixel-value\n\t */\n\tSubImage.prototype.show = function (canvas, scale) {\n\t var ctx, frame, data, current, y, x, pixel;\n\t\n\t if (!scale) {\n\t scale = 1.0;\n\t }\n\t ctx = canvas.getContext('2d');\n\t canvas.width = this.size.x;\n\t canvas.height = this.size.y;\n\t frame = ctx.getImageData(0, 0, canvas.width, canvas.height);\n\t data = frame.data;\n\t current = 0;\n\t for (y = 0; y < this.size.y; y++) {\n\t for (x = 0; x < this.size.x; x++) {\n\t pixel = y * this.size.x + x;\n\t current = this.get(x, y) * scale;\n\t data[pixel * 4 + 0] = current;\n\t data[pixel * 4 + 1] = current;\n\t data[pixel * 4 + 2] = current;\n\t data[pixel * 4 + 3] = 255;\n\t }\n\t }\n\t frame.data = data;\n\t ctx.putImageData(frame, 0, 0);\n\t};\n\t\n\t/**\n\t * Retrieves a given pixel position from the {SubImage}\n\t * @param x {Number} The x-position\n\t * @param y {Number} The y-position\n\t * @returns {Number} The grayscale value at the pixel-position\n\t */\n\tSubImage.prototype.get = function (x, y) {\n\t return this.data[(this.from.y + y) * this.originalSize.x + this.from.x + x];\n\t};\n\t\n\t/**\n\t * Updates the underlying data from a given {ImageWrapper}\n\t * @param image {ImageWrapper} The updated image\n\t */\n\tSubImage.prototype.updateData = function (image) {\n\t this.originalSize = image.size;\n\t this.data = image.data;\n\t};\n\t\n\t/**\n\t * Updates the position of the shared area\n\t * @param from {x,y} The new location\n\t * @returns {SubImage} returns {this} for possible chaining\n\t */\n\tSubImage.prototype.updateFrom = function (from) {\n\t this.from = from;\n\t return this;\n\t};\n\t\n\texports['default'] = SubImage;\n\tmodule.exports = exports['default'];\n\n/***/ },\n/* 7 */\n/***/ function(module, exports, __webpack_require__) {\n\n\t'use strict';\n\t\n\tObject.defineProperty(exports, '__esModule', {\n\t value: true\n\t});\n\t\n\tfunction _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }\n\t\n\tvar _cluster = __webpack_require__(8);\n\t\n\tvar _cluster2 = _interopRequireDefault(_cluster);\n\t\n\tvar _array_helper = __webpack_require__(19);\n\t\n\tvar _array_helper2 = _interopRequireDefault(_array_helper);\n\t\n\tvar _glMatrix = __webpack_require__(9);\n\t\n\tvar CVUtils = {};\n\t\n\t/**\n\t * @param x x-coordinate\n\t * @param y y-coordinate\n\t * @return ImageReference {x,y} Coordinate\n\t */\n\tCVUtils.imageRef = function (x, y) {\n\t var that = {\n\t x: x,\n\t y: y,\n\t toVec2: function toVec2() {\n\t return _glMatrix.vec2.clone([this.x, this.y]);\n\t },\n\t toVec3: function toVec3() {\n\t return _glMatrix.vec3.clone([this.x, this.y, 1]);\n\t },\n\t round: function round() {\n\t this.x = this.x > 0.0 ? Math.floor(this.x + 0.5) : Math.floor(this.x - 0.5);\n\t this.y = this.y > 0.0 ? Math.floor(this.y + 0.5) : Math.floor(this.y - 0.5);\n\t return this;\n\t }\n\t };\n\t return that;\n\t};\n\t\n\t/**\n\t * Computes an integral image of a given grayscale image.\n\t * @param imageDataContainer {ImageDataContainer} the image to be integrated\n\t */\n\tCVUtils.computeIntegralImage2 = function (imageWrapper, integralWrapper) {\n\t var imageData = imageWrapper.data;\n\t var width = imageWrapper.size.x;\n\t var height = imageWrapper.size.y;\n\t var integralImageData = integralWrapper.data;\n\t var sum = 0,\n\t posA = 0,\n\t posB = 0,\n\t posC = 0,\n\t posD = 0,\n\t x,\n\t y;\n\t\n\t // sum up first column\n\t posB = width;\n\t sum = 0;\n\t for (y = 1; y < height; y++) {\n\t sum += imageData[posA];\n\t integralImageData[posB] += sum;\n\t posA += width;\n\t posB += width;\n\t }\n\t\n\t posA = 0;\n\t posB = 1;\n\t sum = 0;\n\t for (x = 1; x < width; x++) {\n\t sum += imageData[posA];\n\t integralImageData[posB] += sum;\n\t posA++;\n\t posB++;\n\t }\n\t\n\t for (y = 1; y < height; y++) {\n\t posA = y * width + 1;\n\t posB = (y - 1) * width + 1;\n\t posC = y * width;\n\t posD = (y - 1) * width;\n\t for (x = 1; x < width; x++) {\n\t integralImageData[posA] += imageData[posA] + integralImageData[posB] + integralImageData[posC] - integralImageData[posD];\n\t posA++;\n\t posB++;\n\t posC++;\n\t posD++;\n\t }\n\t }\n\t};\n\t\n\tCVUtils.computeIntegralImage = function (imageWrapper, integralWrapper) {\n\t var imageData = imageWrapper.data;\n\t var width = imageWrapper.size.x;\n\t var height = imageWrapper.size.y;\n\t var integralImageData = integralWrapper.data;\n\t var sum = 0;\n\t\n\t // sum up first row\n\t for (var i = 0; i < width; i++) {\n\t sum += imageData[i];\n\t integralImageData[i] = sum;\n\t }\n\t\n\t for (var v = 1; v < height; v++) {\n\t sum = 0;\n\t for (var u = 0; u < width; u++) {\n\t sum += imageData[v * width + u];\n\t integralImageData[v * width + u] = sum + integralImageData[(v - 1) * width + u];\n\t }\n\t }\n\t};\n\t\n\tCVUtils.thresholdImage = function (imageWrapper, threshold, targetWrapper) {\n\t if (!targetWrapper) {\n\t targetWrapper = imageWrapper;\n\t }\n\t var imageData = imageWrapper.data,\n\t length = imageData.length,\n\t targetData = targetWrapper.data;\n\t\n\t while (length--) {\n\t targetData[length] = imageData[length] < threshold ? 1 : 0;\n\t }\n\t};\n\t\n\tCVUtils.computeHistogram = function (imageWrapper, bitsPerPixel) {\n\t if (!bitsPerPixel) {\n\t bitsPerPixel = 8;\n\t }\n\t var imageData = imageWrapper.data,\n\t length = imageData.length,\n\t bitShift = 8 - bitsPerPixel,\n\t bucketCnt = 1 << bitsPerPixel,\n\t hist = new Int32Array(bucketCnt);\n\t\n\t while (length--) {\n\t hist[imageData[length] >> bitShift]++;\n\t }\n\t return hist;\n\t};\n\t\n\tCVUtils.sharpenLine = function (line) {\n\t var i,\n\t length = line.length,\n\t left = line[0],\n\t center = line[1],\n\t right;\n\t\n\t for (i = 1; i < length - 1; i++) {\n\t right = line[i + 1];\n\t // -1 4 -1 kernel\n\t line[i - 1] = center * 2 - left - right & 255;\n\t left = center;\n\t center = right;\n\t }\n\t return line;\n\t};\n\t\n\tCVUtils.determineOtsuThreshold = function (imageWrapper, bitsPerPixel) {\n\t if (!bitsPerPixel) {\n\t bitsPerPixel = 8;\n\t }\n\t var hist,\n\t threshold,\n\t bitShift = 8 - bitsPerPixel;\n\t\n\t function px(init, end) {\n\t var sum = 0,\n\t i;\n\t for (i = init; i <= end; i++) {\n\t sum += hist[i];\n\t }\n\t return sum;\n\t }\n\t\n\t function mx(init, end) {\n\t var i,\n\t sum = 0;\n\t\n\t for (i = init; i <= end; i++) {\n\t sum += i * hist[i];\n\t }\n\t\n\t return sum;\n\t }\n\t\n\t function determineThreshold() {\n\t var vet = [0],\n\t p1,\n\t p2,\n\t p12,\n\t k,\n\t m1,\n\t m2,\n\t m12,\n\t max = (1 << bitsPerPixel) - 1;\n\t\n\t hist = CVUtils.computeHistogram(imageWrapper, bitsPerPixel);\n\t for (k = 1; k < max; k++) {\n\t p1 = px(0, k);\n\t p2 = px(k + 1, max);\n\t p12 = p1 * p2;\n\t if (p12 === 0) {\n\t p12 = 1;\n\t }\n\t m1 = mx(0, k) * p2;\n\t m2 = mx(k + 1, max) * p1;\n\t m12 = m1 - m2;\n\t vet[k] = m12 * m12 / p12;\n\t }\n\t return _array_helper2['default'].maxIndex(vet);\n\t }\n\t\n\t threshold = determineThreshold();\n\t return threshold << bitShift;\n\t};\n\t\n\tCVUtils.otsuThreshold = function (imageWrapper, targetWrapper) {\n\t var threshold = CVUtils.determineOtsuThreshold(imageWrapper);\n\t\n\t CVUtils.thresholdImage(imageWrapper, threshold, targetWrapper);\n\t return threshold;\n\t};\n\t\n\t// local thresholding\n\tCVUtils.computeBinaryImage = function (imageWrapper, integralWrapper, targetWrapper) {\n\t CVUtils.computeIntegralImage(imageWrapper, integralWrapper);\n\t\n\t if (!targetWrapper) {\n\t targetWrapper = imageWrapper;\n\t }\n\t var imageData = imageWrapper.data;\n\t var targetData = targetWrapper.data;\n\t var width = imageWrapper.size.x;\n\t var height = imageWrapper.size.y;\n\t var integralImageData = integralWrapper.data;\n\t var sum = 0,\n\t v,\n\t u,\n\t kernel = 3,\n\t A,\n\t B,\n\t C,\n\t D,\n\t avg,\n\t size = (kernel * 2 + 1) * (kernel * 2 + 1);\n\t\n\t // clear out top & bottom-border\n\t for (v = 0; v <= kernel; v++) {\n\t for (u = 0; u < width; u++) {\n\t targetData[v * width + u] = 0;\n\t targetData[(height - 1 - v) * width + u] = 0;\n\t }\n\t }\n\t\n\t // clear out left & right border\n\t for (v = kernel; v < height - kernel; v++) {\n\t for (u = 0; u <= kernel; u++) {\n\t targetData[v * width + u] = 0;\n\t targetData[v * width + (width - 1 - u)] = 0;\n\t }\n\t }\n\t\n\t for (v = kernel + 1; v < height - kernel - 1; v++) {\n\t for (u = kernel + 1; u < width - kernel; u++) {\n\t A = integralImageData[(v - kernel - 1) * width + (u - kernel - 1)];\n\t B = integralImageData[(v - kernel - 1) * width + (u + kernel)];\n\t C = integralImageData[(v + kernel) * width + (u - kernel - 1)];\n\t D = integralImageData[(v + kernel) * width + (u + kernel)];\n\t sum = D - C - B + A;\n\t avg = sum / size;\n\t targetData[v * width + u] = imageData[v * width + u] > avg + 5 ? 0 : 1;\n\t }\n\t }\n\t};\n\t\n\tCVUtils.cluster = function (points, threshold, property) {\n\t var i,\n\t k,\n\t cluster,\n\t point,\n\t clusters = [];\n\t\n\t if (!property) {\n\t property = \"rad\";\n\t }\n\t\n\t function addToCluster(point) {\n\t var found = false;\n\t for (k = 0; k < clusters.length; k++) {\n\t cluster = clusters[k];\n\t if (cluster.fits(point)) {\n\t cluster.add(point);\n\t found = true;\n\t }\n\t }\n\t return found;\n\t }\n\t\n\t // iterate over each cloud\n\t for (i = 0; i < points.length; i++) {\n\t point = _cluster2['default'].createPoint(points[i], i, property);\n\t if (!addToCluster(point)) {\n\t clusters.push(_cluster2['default'].create(point, threshold));\n\t }\n\t }\n\t\n\t return clusters;\n\t};\n\t\n\tCVUtils.Tracer = {\n\t trace: function trace(points, vec) {\n\t var iteration,\n\t maxIterations = 10,\n\t top = [],\n\t result = [],\n\t centerPos = 0,\n\t currentPos = 0;\n\t\n\t function trace(idx, forward) {\n\t var from,\n\t to,\n\t toIdx,\n\t predictedPos,\n\t thresholdX = 1,\n\t thresholdY = Math.abs(vec[1] / 10),\n\t found = false;\n\t\n\t function match(pos, predicted) {\n\t if (pos.x > predicted.x - thresholdX && pos.x < predicted.x + thresholdX && pos.y > predicted.y - thresholdY && pos.y < predicted.y + thresholdY) {\n\t return true;\n\t } else {\n\t return false;\n\t }\n\t }\n\t\n\t // check if the next index is within the vec specifications\n\t // if not, check as long as the threshold is met\n\t\n\t from = points[idx];\n\t if (forward) {\n\t predictedPos = {\n\t x: from.x + vec[0],\n\t y: from.y + vec[1]\n\t };\n\t } else {\n\t predictedPos = {\n\t x: from.x - vec[0],\n\t y: from.y - vec[1]\n\t };\n\t }\n\t\n\t toIdx = forward ? idx + 1 : idx - 1;\n\t to = points[toIdx];\n\t while (to && (found = match(to, predictedPos)) !== true && Math.abs(to.y - from.y) < vec[1]) {\n\t toIdx = forward ? toIdx + 1 : toIdx - 1;\n\t to = points[toIdx];\n\t }\n\t\n\t return found ? toIdx : null;\n\t }\n\t\n\t for (iteration = 0; iteration < maxIterations; iteration++) {\n\t // randomly select point to start with\n\t centerPos = Math.floor(Math.random() * points.length);\n\t\n\t // trace forward\n\t top = [];\n\t currentPos = centerPos;\n\t top.push(points[currentPos]);\n\t while ((currentPos = trace(currentPos, true)) !== null) {\n\t top.push(points[currentPos]);\n\t }\n\t if (centerPos > 0) {\n\t currentPos = centerPos;\n\t while ((currentPos = trace(currentPos, false)) !== null) {\n\t top.push(points[currentPos]);\n\t }\n\t }\n\t\n\t if (top.length > result.length) {\n\t result = top;\n\t }\n\t }\n\t\n\t return result;\n\t }\n\t};\n\t\n\tCVUtils.DILATE = 1;\n\tCVUtils.ERODE = 2;\n\t\n\tCVUtils.dilate = function (inImageWrapper, outImageWrapper) {\n\t var v,\n\t u,\n\t inImageData = inImageWrapper.data,\n\t outImageData = outImageWrapper.data,\n\t height = inImageWrapper.size.y,\n\t width = inImageWrapper.size.x,\n\t sum,\n\t yStart1,\n\t yStart2,\n\t xStart1,\n\t xStart2;\n\t\n\t for (v = 1; v < height - 1; v++) {\n\t for (u = 1; u < width - 1; u++) {\n\t yStart1 = v - 1;\n\t yStart2 = v + 1;\n\t xStart1 = u - 1;\n\t xStart2 = u + 1;\n\t sum = inImageData[yStart1 * width + xStart1] /* + inImageData[yStart1*width+u] */ + inImageData[yStart1 * width + xStart2] +\n\t /* inImageData[v*width+xStart1] + */\n\t inImageData[v * width + u] + /* inImageData[v*width+xStart2] +*/\n\t inImageData[yStart2 * width + xStart1] /* + inImageData[yStart2*width+u]*/ + inImageData[yStart2 * width + xStart2];\n\t outImageData[v * width + u] = sum > 0 ? 1 : 0;\n\t }\n\t }\n\t};\n\t\n\tCVUtils.erode = function (inImageWrapper, outImageWrapper) {\n\t var v,\n\t u,\n\t inImageData = inImageWrapper.data,\n\t outImageData = outImageWrapper.data,\n\t height = inImageWrapper.size.y,\n\t width = inImageWrapper.size.x,\n\t sum,\n\t yStart1,\n\t yStart2,\n\t xStart1,\n\t xStart2;\n\t\n\t for (v = 1; v < height - 1; v++) {\n\t for (u = 1; u < width - 1; u++) {\n\t yStart1 = v - 1;\n\t yStart2 = v + 1;\n\t xStart1 = u - 1;\n\t xStart2 = u + 1;\n\t sum = inImageData[yStart1 * width + xStart1] /* + inImageData[yStart1*width+u] */ + inImageData[yStart1 * width + xStart2] +\n\t /* inImageData[v*width+xStart1] + */\n\t inImageData[v * width + u] + /* inImageData[v*width+xStart2] +*/\n\t inImageData[yStart2 * width + xStart1] /* + inImageData[yStart2*width+u]*/ + inImageData[yStart2 * width + xStart2];\n\t outImageData[v * width + u] = sum === 5 ? 1 : 0;\n\t }\n\t }\n\t};\n\t\n\tCVUtils.subtract = function (aImageWrapper, bImageWrapper, resultImageWrapper) {\n\t if (!resultImageWrapper) {\n\t resultImageWrapper = aImageWrapper;\n\t }\n\t var length = aImageWrapper.data.length,\n\t aImageData = aImageWrapper.data,\n\t bImageData = bImageWrapper.data,\n\t cImageData = resultImageWrapper.data;\n\t\n\t while (length--) {\n\t cImageData[length] = aImageData[length] - bImageData[length];\n\t }\n\t};\n\t\n\tCVUtils.bitwiseOr = function (aImageWrapper, bImageWrapper, resultImageWrapper) {\n\t if (!resultImageWrapper) {\n\t resultImageWrapper = aImageWrapper;\n\t }\n\t var length = aImageWrapper.data.length,\n\t aImageData = aImageWrapper.data,\n\t bImageData = bImageWrapper.data,\n\t cImageData = resultImageWrapper.data;\n\t\n\t while (length--) {\n\t cImageData[length] = aImageData[length] || bImageData[length];\n\t }\n\t};\n\t\n\tCVUtils.countNonZero = function (imageWrapper) {\n\t var length = imageWrapper.data.length,\n\t data = imageWrapper.data,\n\t sum = 0;\n\t\n\t while (length--) {\n\t sum += data[length];\n\t }\n\t return sum;\n\t};\n\t\n\tCVUtils.topGeneric = function (list, top, scoreFunc) {\n\t var i,\n\t minIdx = 0,\n\t min = 0,\n\t queue = [],\n\t score,\n\t hit,\n\t pos;\n\t\n\t for (i = 0; i < top; i++) {\n\t queue[i] = {\n\t score: 0,\n\t item: null\n\t };\n\t }\n\t\n\t for (i = 0; i < list.length; i++) {\n\t score = scoreFunc.apply(this, [list[i]]);\n\t if (score > min) {\n\t hit = queue[minIdx];\n\t hit.score = score;\n\t hit.item = list[i];\n\t min = Number.MAX_VALUE;\n\t for (pos = 0; pos < top; pos++) {\n\t if (queue[pos].score < min) {\n\t min = queue[pos].score;\n\t minIdx = pos;\n\t }\n\t }\n\t }\n\t }\n\t\n\t return queue;\n\t};\n\t\n\tCVUtils.grayArrayFromImage = function (htmlImage, offsetX, ctx, array) {\n\t ctx.drawImage(htmlImage, offsetX, 0, htmlImage.width, htmlImage.height);\n\t var ctxData = ctx.getImageData(offsetX, 0, htmlImage.width, htmlImage.height).data;\n\t CVUtils.computeGray(ctxData, array);\n\t};\n\t\n\tCVUtils.grayArrayFromContext = function (ctx, size, offset, array) {\n\t var ctxData = ctx.getImageData(offset.x, offset.y, size.x, size.y).data;\n\t CVUtils.computeGray(ctxData, array);\n\t};\n\t\n\tCVUtils.grayAndHalfSampleFromCanvasData = function (canvasData, size, outArray) {\n\t var topRowIdx = 0;\n\t var bottomRowIdx = size.x;\n\t var endIdx = Math.floor(canvasData.length / 4);\n\t var outWidth = size.x / 2;\n\t var outImgIdx = 0;\n\t var inWidth = size.x;\n\t var i;\n\t\n\t while (bottomRowIdx < endIdx) {\n\t for (i = 0; i < outWidth; i++) {\n\t outArray[outImgIdx] = Math.floor((0.299 * canvasData[topRowIdx * 4 + 0] + 0.587 * canvasData[topRowIdx * 4 + 1] + 0.114 * canvasData[topRowIdx * 4 + 2] + (0.299 * canvasData[(topRowIdx + 1) * 4 + 0] + 0.587 * canvasData[(topRowIdx + 1) * 4 + 1] + 0.114 * canvasData[(topRowIdx + 1) * 4 + 2]) + (0.299 * canvasData[bottomRowIdx * 4 + 0] + 0.587 * canvasData[bottomRowIdx * 4 + 1] + 0.114 * canvasData[bottomRowIdx * 4 + 2]) + (0.299 * canvasData[(bottomRowIdx + 1) * 4 + 0] + 0.587 * canvasData[(bottomRowIdx + 1) * 4 + 1] + 0.114 * canvasData[(bottomRowIdx + 1) * 4 + 2])) / 4);\n\t outImgIdx++;\n\t topRowIdx = topRowIdx + 2;\n\t bottomRowIdx = bottomRowIdx + 2;\n\t }\n\t topRowIdx = topRowIdx + inWidth;\n\t bottomRowIdx = bottomRowIdx + inWidth;\n\t }\n\t};\n\t\n\tCVUtils.computeGray = function (imageData, outArray, config) {\n\t var l = imageData.length / 4 | 0,\n\t i,\n\t singleChannel = config && config.singleChannel === true;\n\t\n\t if (singleChannel) {\n\t for (i = 0; i < l; i++) {\n\t outArray[i] = imageData[i * 4 + 0];\n\t }\n\t } else {\n\t for (i = 0; i < l; i++) {\n\t outArray[i] = Math.floor(0.299 * imageData[i * 4 + 0] + 0.587 * imageData[i * 4 + 1] + 0.114 * imageData[i * 4 + 2]);\n\t }\n\t }\n\t};\n\t\n\tCVUtils.loadImageArray = function (src, callback, canvas) {\n\t if (!canvas) canvas = document.createElement('canvas');\n\t var img = new Image();\n\t img.callback = callback;\n\t img.onload = function () {\n\t canvas.width = this.width;\n\t canvas.height = this.height;\n\t var ctx = canvas.getContext('2d');\n\t ctx.drawImage(this, 0, 0);\n\t var array = new Uint8Array(this.width * this.height);\n\t ctx.drawImage(this, 0, 0);\n\t var data = ctx.getImageData(0, 0, this.width, this.height).data;\n\t CVUtils.computeGray(data, array);\n\t this.callback(array, {\n\t x: this.width,\n\t y: this.height\n\t }, this);\n\t };\n\t img.src = src;\n\t};\n\t\n\t/**\n\t * @param inImg {ImageWrapper} input image to be sampled\n\t * @param outImg {ImageWrapper} to be stored in\n\t */\n\tCVUtils.halfSample = function (inImgWrapper, outImgWrapper) {\n\t var inImg = inImgWrapper.data;\n\t var inWidth = inImgWrapper.size.x;\n\t var outImg = outImgWrapper.data;\n\t var topRowIdx = 0;\n\t var bottomRowIdx = inWidth;\n\t var endIdx = inImg.length;\n\t var outWidth = inWidth / 2;\n\t var outImgIdx = 0;\n\t while (bottomRowIdx < endIdx) {\n\t for (var i = 0; i < outWidth; i++) {\n\t outImg[outImgIdx] = Math.floor((inImg[topRowIdx] + inImg[topRowIdx + 1] + inImg[bottomRowIdx] + inImg[bottomRowIdx + 1]) / 4);\n\t outImgIdx++;\n\t topRowIdx = topRowIdx + 2;\n\t bottomRowIdx = bottomRowIdx + 2;\n\t }\n\t topRowIdx = topRowIdx + inWidth;\n\t bottomRowIdx = bottomRowIdx + inWidth;\n\t }\n\t};\n\t\n\tCVUtils.hsv2rgb = function (hsv, rgb) {\n\t var h = hsv[0],\n\t s = hsv[1],\n\t v = hsv[2],\n\t c = v * s,\n\t x = c * (1 - Math.abs(h / 60 % 2 - 1)),\n\t m = v - c,\n\t r = 0,\n\t g = 0,\n\t b = 0;\n\t rgb = rgb || [0, 0, 0];\n\t\n\t if (h < 60) {\n\t r = c;\n\t g = x;\n\t } else if (h < 120) {\n\t r = x;\n\t g = c;\n\t } else if (h < 180) {\n\t g = c;\n\t b = x;\n\t } else if (h < 240) {\n\t g = x;\n\t b = c;\n\t } else if (h < 300) {\n\t r = x;\n\t b = c;\n\t } else if (h < 360) {\n\t r = c;\n\t b = x;\n\t }\n\t rgb[0] = (r + m) * 255 | 0;\n\t rgb[1] = (g + m) * 255 | 0;\n\t rgb[2] = (b + m) * 255 | 0;\n\t return rgb;\n\t};\n\t\n\tCVUtils._computeDivisors = function (n) {\n\t var largeDivisors = [],\n\t divisors = [],\n\t i;\n\t\n\t for (i = 1; i < Math.sqrt(n) + 1; i++) {\n\t if (n % i === 0) {\n\t divisors.push(i);\n\t if (i !== n / i) {\n\t largeDivisors.unshift(Math.floor(n / i));\n\t }\n\t }\n\t }\n\t return divisors.concat(largeDivisors);\n\t};\n\t\n\tCVUtils._computeIntersection = function (arr1, arr2) {\n\t var i = 0,\n\t j = 0,\n\t result = [];\n\t\n\t while (i < arr1.length && j < arr2.length) {\n\t if (arr1[i] === arr2[j]) {\n\t result.push(arr1[i]);\n\t i++;\n\t j++;\n\t } else if (arr1[i] > arr2[j]) {\n\t j++;\n\t } else {\n\t i++;\n\t }\n\t }\n\t return result;\n\t};\n\t\n\tCVUtils.calculatePatchSize = function (patchSize, imgSize) {\n\t var divisorsX = this._computeDivisors(imgSize.x),\n\t divisorsY = this._computeDivisors(imgSize.y),\n\t wideSide = Math.max(imgSize.x, imgSize.y),\n\t common = this._computeIntersection(divisorsX, divisorsY),\n\t nrOfPatchesList = [8, 10, 15, 20, 32, 60, 80],\n\t nrOfPatchesMap = {\n\t \"x-small\": 5,\n\t \"small\": 4,\n\t \"medium\": 3,\n\t \"large\": 2,\n\t \"x-large\": 1\n\t },\n\t nrOfPatchesIdx = nrOfPatchesMap[patchSize] || nrOfPatchesMap.medium,\n\t nrOfPatches = nrOfPatchesList[nrOfPatchesIdx],\n\t desiredPatchSize = Math.floor(wideSide / nrOfPatches),\n\t optimalPatchSize;\n\t\n\t function findPatchSizeForDivisors(divisors) {\n\t var i = 0,\n\t found = divisors[Math.floor(divisors.length / 2)];\n\t\n\t while (i < divisors.length - 1 && divisors[i] < desiredPatchSize) {\n\t i++;\n\t }\n\t if (i > 0) {\n\t if (Math.abs(divisors[i] - desiredPatchSize) > Math.abs(divisors[i - 1] - desiredPatchSize)) {\n\t found = divisors[i - 1];\n\t } else {\n\t found = divisors[i];\n\t }\n\t }\n\t if (desiredPatchSize / found < nrOfPatchesList[nrOfPatchesIdx + 1] / nrOfPatchesList[nrOfPatchesIdx] && desiredPatchSize / found > nrOfPatchesList[nrOfPatchesIdx - 1] / nrOfPatchesList[nrOfPatchesIdx]) {\n\t return { x: found, y: found };\n\t }\n\t return null;\n\t }\n\t\n\t optimalPatchSize = findPatchSizeForDivisors(common);\n\t if (!optimalPatchSize) {\n\t optimalPatchSize = findPatchSizeForDivisors(this._computeDivisors(wideSide));\n\t if (!optimalPatchSize) {\n\t optimalPatchSize = findPatchSizeForDivisors(this._computeDivisors(desiredPatchSize * nrOfPatches));\n\t }\n\t }\n\t return optimalPatchSize;\n\t};\n\t\n\tCVUtils._parseCSSDimensionValues = function (value) {\n\t var dimension = {\n\t value: parseFloat(value),\n\t unit: value.indexOf(\"%\") === value.length - 1 ? \"%\" : \"%\"\n\t };\n\t\n\t return dimension;\n\t};\n\t\n\tCVUtils._dimensionsConverters = {\n\t top: function top(dimension, context) {\n\t if (dimension.unit === \"%\") {\n\t return Math.floor(context.height * (dimension.value / 100));\n\t }\n\t },\n\t right: function right(dimension, context) {\n\t if (dimension.unit === \"%\") {\n\t return Math.floor(context.width - context.width * (dimension.value / 100));\n\t }\n\t },\n\t bottom: function bottom(dimension, context) {\n\t if (dimension.unit === \"%\") {\n\t return Math.floor(context.height - context.height * (dimension.value / 100));\n\t }\n\t },\n\t left: function left(dimension, context) {\n\t if (dimension.unit === \"%\") {\n\t return Math.floor(context.width * (dimension.value / 100));\n\t }\n\t }\n\t};\n\t\n\tCVUtils.computeImageArea = function (inputWidth, inputHeight, area) {\n\t var context = { width: inputWidth, height: inputHeight };\n\t\n\t var parsedArea = Object.keys(area).reduce(function (result, key) {\n\t var value = area[key],\n\t parsed = CVUtils._parseCSSDimensionValues(value),\n\t calculated = CVUtils._dimensionsConverters[key](parsed, context);\n\t\n\t result[key] = calculated;\n\t return result;\n\t }, {});\n\t\n\t return {\n\t sx: parsedArea.left,\n\t sy: parsedArea.top,\n\t sw: parsedArea.right - parsedArea.left,\n\t sh: parsedArea.bottom - parsedArea.top\n\t };\n\t};\n\t\n\texports['default'] = CVUtils;\n\tmodule.exports = exports['default'];\n\n/***/ },\n/* 8 */\n/***/ function(module, exports, __webpack_require__) {\n\n\t'use strict';\n\t\n\tObject.defineProperty(exports, '__esModule', {\n\t value: true\n\t});\n\t\n\tvar _glMatrix = __webpack_require__(9);\n\t\n\t/**\n\t * Creates a cluster for grouping similar orientations of datapoints\n\t */\n\texports['default'] = {\n\t create: function create(point, threshold) {\n\t var points = [],\n\t center = {\n\t rad: 0,\n\t vec: _glMatrix.vec2.clone([0, 0])\n\t },\n\t pointMap = {};\n\t\n\t function init() {\n\t _add(point);\n\t updateCenter();\n\t }\n\t\n\t function _add(point) {\n\t pointMap[point.id] = point;\n\t points.push(point);\n\t }\n\t\n\t function updateCenter() {\n\t var i,\n\t sum = 0;\n\t for (i = 0; i < points.length; i++) {\n\t sum += points[i].rad;\n\t }\n\t center.rad = sum / points.length;\n\t center.vec = _glMatrix.vec2.clone([Math.cos(center.rad), Math.sin(center.rad)]);\n\t }\n\t\n\t init();\n\t\n\t return {\n\t add: function add(point) {\n\t if (!pointMap[point.id]) {\n\t _add(point);\n\t updateCenter();\n\t }\n\t },\n\t fits: function fits(point) {\n\t // check cosine similarity to center-angle\n\t var similarity = Math.abs(_glMatrix.vec2.dot(point.point.vec, center.vec));\n\t if (similarity > threshold) {\n\t return true;\n\t }\n\t return false;\n\t },\n\t getPoints: function getPoints() {\n\t return points;\n\t },\n\t getCenter: function getCenter() {\n\t return center;\n\t }\n\t };\n\t },\n\t createPoint: function createPoint(point, id, property) {\n\t return {\n\t rad: point[property],\n\t point: point,\n\t id: id\n\t };\n\t }\n\t};\n\tmodule.exports = exports['default'];\n\n/***/ },\n/* 9 */\n/***/ function(module, exports, __webpack_require__) {\n\n\t/**\n\t * @fileoverview gl-matrix - High performance matrix and vector operations\n\t * @author Brandon Jones\n\t * @author Colin MacKenzie IV\n\t * @version 2.3.0\n\t */\n\t\n\t/* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV.\n\t\n\tPermission is hereby granted, free of charge, to any person obtaining a copy\n\tof this software and associated documentation files (the \"Software\"), to deal\n\tin the Software without restriction, including without limitation the rights\n\tto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n\tcopies of the Software, and to permit persons to whom the Software is\n\tfurnished to do so, subject to the following conditions:\n\t\n\tThe above copyright notice and this permission notice shall be included in\n\tall copies or substantial portions of the Software.\n\t\n\tTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n\tIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n\tFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n\tAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n\tLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n\tOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n\tTHE SOFTWARE. */\n\t// END HEADER\n\t\n\texports.glMatrix = __webpack_require__(10);\n\texports.mat2 = __webpack_require__(11);\n\texports.mat2d = __webpack_require__(12);\n\texports.mat3 = __webpack_require__(13);\n\texports.mat4 = __webpack_require__(14);\n\texports.quat = __webpack_require__(15);\n\texports.vec2 = __webpack_require__(18);\n\texports.vec3 = __webpack_require__(16);\n\texports.vec4 = __webpack_require__(17);\n\n/***/ },\n/* 10 */\n/***/ function(module, exports) {\n\n\t/* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV.\n\t\n\tPermission is hereby granted, free of charge, to any person obtaining a copy\n\tof this software and associated documentation files (the \"Software\"), to deal\n\tin the Software without restriction, including without limitation the rights\n\tto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n\tcopies of the Software, and to permit persons to whom the Software is\n\tfurnished to do so, subject to the following conditions:\n\t\n\tThe above copyright notice and this permission notice shall be included in\n\tall copies or substantial portions of the Software.\n\t\n\tTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n\tIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n\tFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n\tAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n\tLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n\tOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n\tTHE SOFTWARE. */\n\t\n\t/**\n\t * @class Common utilities\n\t * @name glMatrix\n\t */\n\tvar glMatrix = {};\n\t\n\t// Constants\n\tglMatrix.EPSILON = 0.000001;\n\tglMatrix.ARRAY_TYPE = (typeof Float32Array !== 'undefined') ? Float32Array : Array;\n\tglMatrix.RANDOM = Math.random;\n\t\n\t/**\n\t * Sets the type of array used when creating new vectors and matrices\n\t *\n\t * @param {Type} type Array type, such as Float32Array or Array\n\t */\n\tglMatrix.setMatrixArrayType = function(type) {\n\t GLMAT_ARRAY_TYPE = type;\n\t}\n\t\n\tvar degree = Math.PI / 180;\n\t\n\t/**\n\t* Convert Degree To Radian\n\t*\n\t* @param {Number} Angle in Degrees\n\t*/\n\tglMatrix.toRadian = function(a){\n\t return a * degree;\n\t}\n\t\n\tmodule.exports = glMatrix;\n\n\n/***/ },\n/* 11 */\n/***/ function(module, exports, __webpack_require__) {\n\n\t/* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV.\n\t\n\tPermission is hereby granted, free of charge, to any person obtaining a copy\n\tof this software and associated documentation files (the \"Software\"), to deal\n\tin the Software without restriction, including without limitation the rights\n\tto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n\tcopies of the Software, and to permit persons to whom the Software is\n\tfurnished to do so, subject to the following conditions:\n\t\n\tThe above copyright notice and this permission notice shall be included in\n\tall copies or substantial portions of the Software.\n\t\n\tTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n\tIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n\tFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n\tAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n\tLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n\tOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n\tTHE SOFTWARE. */\n\t\n\tvar glMatrix = __webpack_require__(10);\n\t\n\t/**\n\t * @class 2x2 Matrix\n\t * @name mat2\n\t */\n\tvar mat2 = {};\n\t\n\t/**\n\t * Creates a new identity mat2\n\t *\n\t * @returns {mat2} a new 2x2 matrix\n\t */\n\tmat2.create = function() {\n\t var out = new glMatrix.ARRAY_TYPE(4);\n\t out[0] = 1;\n\t out[1] = 0;\n\t out[2] = 0;\n\t out[3] = 1;\n\t return out;\n\t};\n\t\n\t/**\n\t * Creates a new mat2 initialized with values from an existing matrix\n\t *\n\t * @param {mat2} a matrix to clone\n\t * @returns {mat2} a new 2x2 matrix\n\t */\n\tmat2.clone = function(a) {\n\t var out = new glMatrix.ARRAY_TYPE(4);\n\t out[0] = a[0];\n\t out[1] = a[1];\n\t out[2] = a[2];\n\t out[3] = a[3];\n\t return out;\n\t};\n\t\n\t/**\n\t * Copy the values from one mat2 to another\n\t *\n\t * @param {mat2} out the receiving matrix\n\t * @param {mat2} a the source matrix\n\t * @returns {mat2} out\n\t */\n\tmat2.copy = function(out, a) {\n\t out[0] = a[0];\n\t out[1] = a[1];\n\t out[2] = a[2];\n\t out[3] = a[3];\n\t return out;\n\t};\n\t\n\t/**\n\t * Set a mat2 to the identity matrix\n\t *\n\t * @param {mat2} out the receiving matrix\n\t * @returns {mat2} out\n\t */\n\tmat2.identity = function(out) {\n\t out[0] = 1;\n\t out[1] = 0;\n\t out[2] = 0;\n\t out[3] = 1;\n\t return out;\n\t};\n\t\n\t/**\n\t * Transpose the values of a mat2\n\t *\n\t * @param {mat2} out the receiving matrix\n\t * @param {mat2} a the source matrix\n\t * @returns {mat2} out\n\t */\n\tmat2.transpose = function(out, a) {\n\t // If we are transposing ourselves we can skip a few steps but have to cache some values\n\t if (out === a) {\n\t var a1 = a[1];\n\t out[1] = a[2];\n\t out[2] = a1;\n\t } else {\n\t out[0] = a[0];\n\t out[1] = a[2];\n\t out[2] = a[1];\n\t out[3] = a[3];\n\t }\n\t \n\t return out;\n\t};\n\t\n\t/**\n\t * Inverts a mat2\n\t *\n\t * @param {mat2} out the receiving matrix\n\t * @param {mat2} a the source matrix\n\t * @returns {mat2} out\n\t */\n\tmat2.invert = function(out, a) {\n\t var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3],\n\t\n\t // Calculate the determinant\n\t det = a0 * a3 - a2 * a1;\n\t\n\t if (!det) {\n\t return null;\n\t }\n\t det = 1.0 / det;\n\t \n\t out[0] = a3 * det;\n\t out[1] = -a1 * det;\n\t out[2] = -a2 * det;\n\t out[3] = a0 * det;\n\t\n\t return out;\n\t};\n\t\n\t/**\n\t * Calculates the adjugate of a mat2\n\t *\n\t * @param {mat2} out the receiving matrix\n\t * @param {mat2} a the source matrix\n\t * @returns {mat2} out\n\t */\n\tmat2.adjoint = function(out, a) {\n\t // Caching this value is nessecary if out == a\n\t var a0 = a[0];\n\t out[0] = a[3];\n\t out[1] = -a[1];\n\t out[2] = -a[2];\n\t out[3] = a0;\n\t\n\t return out;\n\t};\n\t\n\t/**\n\t * Calculates the determinant of a mat2\n\t *\n\t * @param {mat2} a the source matrix\n\t * @returns {Number} determinant of a\n\t */\n\tmat2.determinant = function (a) {\n\t return a[0] * a[3] - a[2] * a[1];\n\t};\n\t\n\t/**\n\t * Multiplies two mat2's\n\t *\n\t * @param {mat2} out the receiving matrix\n\t * @param {mat2} a the first operand\n\t * @param {mat2} b the second operand\n\t * @returns {mat2} out\n\t */\n\tmat2.multiply = function (out, a, b) {\n\t var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3];\n\t var b0 = b[0], b1 = b[1], b2 = b[2], b3 = b[3];\n\t out[0] = a0 * b0 + a2 * b1;\n\t out[1] = a1 * b0 + a3 * b1;\n\t out[2] = a0 * b2 + a2 * b3;\n\t out[3] = a1 * b2 + a3 * b3;\n\t return out;\n\t};\n\t\n\t/**\n\t * Alias for {@link mat2.multiply}\n\t * @function\n\t */\n\tmat2.mul = mat2.multiply;\n\t\n\t/**\n\t * Rotates a mat2 by the given angle\n\t *\n\t * @param {mat2} out the receiving matrix\n\t * @param {mat2} a the matrix to rotate\n\t * @param {Number} rad the angle to rotate the matrix by\n\t * @returns {mat2} out\n\t */\n\tmat2.rotate = function (out, a, rad) {\n\t var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3],\n\t s = Math.sin(rad),\n\t c = Math.cos(rad);\n\t out[0] = a0 * c + a2 * s;\n\t out[1] = a1 * c + a3 * s;\n\t out[2] = a0 * -s + a2 * c;\n\t out[3] = a1 * -s + a3 * c;\n\t return out;\n\t};\n\t\n\t/**\n\t * Scales the mat2 by the dimensions in the given vec2\n\t *\n\t * @param {mat2} out the receiving matrix\n\t * @param {mat2} a the matrix to rotate\n\t * @param {vec2} v the vec2 to scale the matrix by\n\t * @returns {mat2} out\n\t **/\n\tmat2.scale = function(out, a, v) {\n\t var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3],\n\t v0 = v[0], v1 = v[1];\n\t out[0] = a0 * v0;\n\t out[1] = a1 * v0;\n\t out[2] = a2 * v1;\n\t out[3] = a3 * v1;\n\t return out;\n\t};\n\t\n\t/**\n\t * Creates a matrix from a given angle\n\t * This is equivalent to (but much faster than):\n\t *\n\t * mat2.identity(dest);\n\t * mat2.rotate(dest, dest, rad);\n\t *\n\t * @param {mat2} out mat2 receiving operation result\n\t * @param {Number} rad the angle to rotate the matrix by\n\t * @returns {mat2} out\n\t */\n\tmat2.fromRotation = function(out, rad) {\n\t var s = Math.sin(rad),\n\t c = Math.cos(rad);\n\t out[0] = c;\n\t out[1] = s;\n\t out[2] = -s;\n\t out[3] = c;\n\t return out;\n\t}\n\t\n\t/**\n\t * Creates a matrix from a vector scaling\n\t * This is equivalent to (but much faster than):\n\t *\n\t * mat2.identity(dest);\n\t * mat2.scale(dest, dest, vec);\n\t *\n\t * @param {mat2} out mat2 receiving operation result\n\t * @param {vec2} v Scaling vector\n\t * @returns {mat2} out\n\t */\n\tmat2.fromScaling = function(out, v) {\n\t out[0] = v[0];\n\t out[1] = 0;\n\t out[2] = 0;\n\t out[3] = v[1];\n\t return out;\n\t}\n\t\n\t/**\n\t * Returns a string representation of a mat2\n\t *\n\t * @param {mat2} mat matrix to represent as a string\n\t * @returns {String} string representation of the matrix\n\t */\n\tmat2.str = function (a) {\n\t return 'mat2(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' + a[3] + ')';\n\t};\n\t\n\t/**\n\t * Returns Frobenius norm of a mat2\n\t *\n\t * @param {mat2} a the matrix to calculate Frobenius norm of\n\t * @returns {Number} Frobenius norm\n\t */\n\tmat2.frob = function (a) {\n\t return(Math.sqrt(Math.pow(a[0], 2) + Math.pow(a[1], 2) + Math.pow(a[2], 2) + Math.pow(a[3], 2)))\n\t};\n\t\n\t/**\n\t * Returns L, D and U matrices (Lower triangular, Diagonal and Upper triangular) by factorizing the input matrix\n\t * @param {mat2} L the lower triangular matrix \n\t * @param {mat2} D the diagonal matrix \n\t * @param {mat2} U the upper triangular matrix \n\t * @param {mat2} a the input matrix to factorize\n\t */\n\t\n\tmat2.LDU = function (L, D, U, a) { \n\t L[2] = a[2]/a[0]; \n\t U[0] = a[0]; \n\t U[1] = a[1]; \n\t U[3] = a[3] - L[2] * U[1]; \n\t return [L, D, U]; \n\t}; \n\t\n\t\n\tmodule.exports = mat2;\n\n\n/***/ },\n/* 12 */\n/***/ function(module, exports, __webpack_require__) {\n\n\t/* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV.\n\t\n\tPermission is hereby granted, free of charge, to any person obtaining a copy\n\tof this software and associated documentation files (the \"Software\"), to deal\n\tin the Software without restriction, including without limitation the rights\n\tto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n\tcopies of the Software, and to permit persons to whom the Software is\n\tfurnished to do so, subject to the following conditions:\n\t\n\tThe above copyright notice and this permission notice shall be included in\n\tall copies or substantial portions of the Software.\n\t\n\tTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n\tIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n\tFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n\tAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n\tLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n\tOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n\tTHE SOFTWARE. */\n\t\n\tvar glMatrix = __webpack_require__(10);\n\t\n\t/**\n\t * @class 2x3 Matrix\n\t * @name mat2d\n\t * \n\t * @description \n\t * A mat2d contains six elements defined as:\n\t * 
\n\t * [a, c, tx,\n\t *  b, d, ty]\n\t *
\n\t * This is a short form for the 3x3 matrix:\n\t * 
\n\t * [a, c, tx,\n\t *  b, d, ty,\n\t *  0, 0, 1]\n\t *
\n\t * The last row is ignored so the array is shorter and operations are faster.\n\t */\n\tvar mat2d = {};\n\t\n\t/**\n\t * Creates a new identity mat2d\n\t *\n\t * @returns {mat2d} a new 2x3 matrix\n\t */\n\tmat2d.create = function() {\n\t var out = new glMatrix.ARRAY_TYPE(6);\n\t out[0] = 1;\n\t out[1] = 0;\n\t out[2] = 0;\n\t out[3] = 1;\n\t out[4] = 0;\n\t out[5] = 0;\n\t return out;\n\t};\n\t\n\t/**\n\t * Creates a new mat2d initialized with values from an existing matrix\n\t *\n\t * @param {mat2d} a matrix to clone\n\t * @returns {mat2d} a new 2x3 matrix\n\t */\n\tmat2d.clone = function(a) {\n\t var out = new glMatrix.ARRAY_TYPE(6);\n\t out[0] = a[0];\n\t out[1] = a[1];\n\t out[2] = a[2];\n\t out[3] = a[3];\n\t out[4] = a[4];\n\t out[5] = a[5];\n\t return out;\n\t};\n\t\n\t/**\n\t * Copy the values from one mat2d to another\n\t *\n\t * @param {mat2d} out the receiving matrix\n\t * @param {mat2d} a the source matrix\n\t * @returns {mat2d} out\n\t */\n\tmat2d.copy = function(out, a) {\n\t out[0] = a[0];\n\t out[1] = a[1];\n\t out[2] = a[2];\n\t out[3] = a[3];\n\t out[4] = a[4];\n\t out[5] = a[5];\n\t return out;\n\t};\n\t\n\t/**\n\t * Set a mat2d to the identity matrix\n\t *\n\t * @param {mat2d} out the receiving matrix\n\t * @returns {mat2d} out\n\t */\n\tmat2d.identity = function(out) {\n\t out[0] = 1;\n\t out[1] = 0;\n\t out[2] = 0;\n\t out[3] = 1;\n\t out[4] = 0;\n\t out[5] = 0;\n\t return out;\n\t};\n\t\n\t/**\n\t * Inverts a mat2d\n\t *\n\t * @param {mat2d} out the receiving matrix\n\t * @param {mat2d} a the source matrix\n\t * @returns {mat2d} out\n\t */\n\tmat2d.invert = function(out, a) {\n\t var aa = a[0], ab = a[1], ac = a[2], ad = a[3],\n\t atx = a[4], aty = a[5];\n\t\n\t var det = aa * ad - ab * ac;\n\t if(!det){\n\t return null;\n\t }\n\t det = 1.0 / det;\n\t\n\t out[0] = ad * det;\n\t out[1] = -ab * det;\n\t out[2] = -ac * det;\n\t out[3] = aa * det;\n\t out[4] = (ac * aty - ad * atx) * det;\n\t out[5] = (ab * atx - aa * aty) * det;\n\t return out;\n\t};\n\t\n\t/**\n\t * Calculates the determinant of a mat2d\n\t *\n\t * @param {mat2d} a the source matrix\n\t * @returns {Number} determinant of a\n\t */\n\tmat2d.determinant = function (a) {\n\t return a[0] * a[3] - a[1] * a[2];\n\t};\n\t\n\t/**\n\t * Multiplies two mat2d's\n\t *\n\t * @param {mat2d} out the receiving matrix\n\t * @param {mat2d} a the first operand\n\t * @param {mat2d} b the second operand\n\t * @returns {mat2d} out\n\t */\n\tmat2d.multiply = function (out, a, b) {\n\t var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3], a4 = a[4], a5 = a[5],\n\t b0 = b[0], b1 = b[1], b2 = b[2], b3 = b[3], b4 = b[4], b5 = b[5];\n\t out[0] = a0 * b0 + a2 * b1;\n\t out[1] = a1 * b0 + a3 * b1;\n\t out[2] = a0 * b2 + a2 * b3;\n\t out[3] = a1 * b2 + a3 * b3;\n\t out[4] = a0 * b4 + a2 * b5 + a4;\n\t out[5] = a1 * b4 + a3 * b5 + a5;\n\t return out;\n\t};\n\t\n\t/**\n\t * Alias for {@link mat2d.multiply}\n\t * @function\n\t */\n\tmat2d.mul = mat2d.multiply;\n\t\n\t/**\n\t * Rotates a mat2d by the given angle\n\t *\n\t * @param {mat2d} out the receiving matrix\n\t * @param {mat2d} a the matrix to rotate\n\t * @param {Number} rad the angle to rotate the matrix by\n\t * @returns {mat2d} out\n\t */\n\tmat2d.rotate = function (out, a, rad) {\n\t var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3], a4 = a[4], a5 = a[5],\n\t s = Math.sin(rad),\n\t c = Math.cos(rad);\n\t out[0] = a0 * c + a2 * s;\n\t out[1] = a1 * c + a3 * s;\n\t out[2] = a0 * -s + a2 * c;\n\t out[3] = a1 * -s + a3 * c;\n\t out[4] = a4;\n\t out[5] = a5;\n\t return out;\n\t};\n\t\n\t/**\n\t * Scales the mat2d by the dimensions in the given vec2\n\t *\n\t * @param {mat2d} out the receiving matrix\n\t * @param {mat2d} a the matrix to translate\n\t * @param {vec2} v the vec2 to scale the matrix by\n\t * @returns {mat2d} out\n\t **/\n\tmat2d.scale = function(out, a, v) {\n\t var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3], a4 = a[4], a5 = a[5],\n\t v0 = v[0], v1 = v[1];\n\t out[0] = a0 * v0;\n\t out[1] = a1 * v0;\n\t out[2] = a2 * v1;\n\t out[3] = a3 * v1;\n\t out[4] = a4;\n\t out[5] = a5;\n\t return out;\n\t};\n\t\n\t/**\n\t * Translates the mat2d by the dimensions in the given vec2\n\t *\n\t * @param {mat2d} out the receiving matrix\n\t * @param {mat2d} a the matrix to translate\n\t * @param {vec2} v the vec2 to translate the matrix by\n\t * @returns {mat2d} out\n\t **/\n\tmat2d.translate = function(out, a, v) {\n\t var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3], a4 = a[4], a5 = a[5],\n\t v0 = v[0], v1 = v[1];\n\t out[0] = a0;\n\t out[1] = a1;\n\t out[2] = a2;\n\t out[3] = a3;\n\t out[4] = a0 * v0 + a2 * v1 + a4;\n\t out[5] = a1 * v0 + a3 * v1 + a5;\n\t return out;\n\t};\n\t\n\t/**\n\t * Creates a matrix from a given angle\n\t * This is equivalent to (but much faster than):\n\t *\n\t * mat2d.identity(dest);\n\t * mat2d.rotate(dest, dest, rad);\n\t *\n\t * @param {mat2d} out mat2d receiving operation result\n\t * @param {Number} rad the angle to rotate the matrix by\n\t * @returns {mat2d} out\n\t */\n\tmat2d.fromRotation = function(out, rad) {\n\t var s = Math.sin(rad), c = Math.cos(rad);\n\t out[0] = c;\n\t out[1] = s;\n\t out[2] = -s;\n\t out[3] = c;\n\t out[4] = 0;\n\t out[5] = 0;\n\t return out;\n\t}\n\t\n\t/**\n\t * Creates a matrix from a vector scaling\n\t * This is equivalent to (but much faster than):\n\t *\n\t * mat2d.identity(dest);\n\t * mat2d.scale(dest, dest, vec);\n\t *\n\t * @param {mat2d} out mat2d receiving operation result\n\t * @param {vec2} v Scaling vector\n\t * @returns {mat2d} out\n\t */\n\tmat2d.fromScaling = function(out, v) {\n\t out[0] = v[0];\n\t out[1] = 0;\n\t out[2] = 0;\n\t out[3] = v[1];\n\t out[4] = 0;\n\t out[5] = 0;\n\t return out;\n\t}\n\t\n\t/**\n\t * Creates a matrix from a vector translation\n\t * This is equivalent to (but much faster than):\n\t *\n\t * mat2d.identity(dest);\n\t * mat2d.translate(dest, dest, vec);\n\t *\n\t * @param {mat2d} out mat2d receiving operation result\n\t * @param {vec2} v Translation vector\n\t * @returns {mat2d} out\n\t */\n\tmat2d.fromTranslation = function(out, v) {\n\t out[0] = 1;\n\t out[1] = 0;\n\t out[2] = 0;\n\t out[3] = 1;\n\t out[4] = v[0];\n\t out[5] = v[1];\n\t return out;\n\t}\n\t\n\t/**\n\t * Returns a string representation of a mat2d\n\t *\n\t * @param {mat2d} a matrix to represent as a string\n\t * @returns {String} string representation of the matrix\n\t */\n\tmat2d.str = function (a) {\n\t return 'mat2d(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' + \n\t a[3] + ', ' + a[4] + ', ' + a[5] + ')';\n\t};\n\t\n\t/**\n\t * Returns Frobenius norm of a mat2d\n\t *\n\t * @param {mat2d} a the matrix to calculate Frobenius norm of\n\t * @returns {Number} Frobenius norm\n\t */\n\tmat2d.frob = function (a) { \n\t return(Math.sqrt(Math.pow(a[0], 2) + Math.pow(a[1], 2) + Math.pow(a[2], 2) + Math.pow(a[3], 2) + Math.pow(a[4], 2) + Math.pow(a[5], 2) + 1))\n\t}; \n\t\n\tmodule.exports = mat2d;\n\n\n/***/ },\n/* 13 */\n/***/ function(module, exports, __webpack_require__) {\n\n\t/* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV.\n\t\n\tPermission is hereby granted, free of charge, to any person obtaining a copy\n\tof this software and associated documentation files (the \"Software\"), to deal\n\tin the Software without restriction, including without limitation the rights\n\tto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n\tcopies of the Software, and to permit persons to whom the Software is\n\tfurnished to do so, subject to the following conditions:\n\t\n\tThe above copyright notice and this permission notice shall be included in\n\tall copies or substantial portions of the Software.\n\t\n\tTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n\tIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n\tFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n\tAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n\tLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n\tOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n\tTHE SOFTWARE. */\n\t\n\tvar glMatrix = __webpack_require__(10);\n\t\n\t/**\n\t * @class 3x3 Matrix\n\t * @name mat3\n\t */\n\tvar mat3 = {};\n\t\n\t/**\n\t * Creates a new identity mat3\n\t *\n\t * @returns {mat3} a new 3x3 matrix\n\t */\n\tmat3.create = function() {\n\t var out = new glMatrix.ARRAY_TYPE(9);\n\t out[0] = 1;\n\t out[1] = 0;\n\t out[2] = 0;\n\t out[3] = 0;\n\t out[4] = 1;\n\t out[5] = 0;\n\t out[6] = 0;\n\t out[7] = 0;\n\t out[8] = 1;\n\t return out;\n\t};\n\t\n\t/**\n\t * Copies the upper-left 3x3 values into the given mat3.\n\t *\n\t * @param {mat3} out the receiving 3x3 matrix\n\t * @param {mat4} a the source 4x4 matrix\n\t * @returns {mat3} out\n\t */\n\tmat3.fromMat4 = function(out, a) {\n\t out[0] = a[0];\n\t out[1] = a[1];\n\t out[2] = a[2];\n\t out[3] = a[4];\n\t out[4] = a[5];\n\t out[5] = a[6];\n\t out[6] = a[8];\n\t out[7] = a[9];\n\t out[8] = a[10];\n\t return out;\n\t};\n\t\n\t/**\n\t * Creates a new mat3 initialized with values from an existing matrix\n\t *\n\t * @param {mat3} a matrix to clone\n\t * @returns {mat3} a new 3x3 matrix\n\t */\n\tmat3.clone = function(a) {\n\t var out = new glMatrix.ARRAY_TYPE(9);\n\t out[0] = a[0];\n\t out[1] = a[1];\n\t out[2] = a[2];\n\t out[3] = a[3];\n\t out[4] = a[4];\n\t out[5] = a[5];\n\t out[6] = a[6];\n\t out[7] = a[7];\n\t out[8] = a[8];\n\t return out;\n\t};\n\t\n\t/**\n\t * Copy the values from one mat3 to another\n\t *\n\t * @param {mat3} out the receiving matrix\n\t * @param {mat3} a the source matrix\n\t * @returns {mat3} out\n\t */\n\tmat3.copy = function(out, a) {\n\t out[0] = a[0];\n\t out[1] = a[1];\n\t out[2] = a[2];\n\t out[3] = a[3];\n\t out[4] = a[4];\n\t out[5] = a[5];\n\t out[6] = a[6];\n\t out[7] = a[7];\n\t out[8] = a[8];\n\t return out;\n\t};\n\t\n\t/**\n\t * Set a mat3 to the identity matrix\n\t *\n\t * @param {mat3} out the receiving matrix\n\t * @returns {mat3} out\n\t */\n\tmat3.identity = function(out) {\n\t out[0] = 1;\n\t out[1] = 0;\n\t out[2] = 0;\n\t out[3] = 0;\n\t out[4] = 1;\n\t out[5] = 0;\n\t out[6] = 0;\n\t out[7] = 0;\n\t out[8] = 1;\n\t return out;\n\t};\n\t\n\t/**\n\t * Transpose the values of a mat3\n\t *\n\t * @param {mat3} out the receiving matrix\n\t * @param {mat3} a the source matrix\n\t * @returns {mat3} out\n\t */\n\tmat3.transpose = function(out, a) {\n\t // If we are transposing ourselves we can skip a few steps but have to cache some values\n\t if (out === a) {\n\t var a01 = a[1], a02 = a[2], a12 = a[5];\n\t out[1] = a[3];\n\t out[2] = a[6];\n\t out[3] = a01;\n\t out[5] = a[7];\n\t out[6] = a02;\n\t out[7] = a12;\n\t } else {\n\t out[0] = a[0];\n\t out[1] = a[3];\n\t out[2] = a[6];\n\t out[3] = a[1];\n\t out[4] = a[4];\n\t out[5] = a[7];\n\t out[6] = a[2];\n\t out[7] = a[5];\n\t out[8] = a[8];\n\t }\n\t \n\t return out;\n\t};\n\t\n\t/**\n\t * Inverts a mat3\n\t *\n\t * @param {mat3} out the receiving matrix\n\t * @param {mat3} a the source matrix\n\t * @returns {mat3} out\n\t */\n\tmat3.invert = function(out, a) {\n\t var a00 = a[0], a01 = a[1], a02 = a[2],\n\t a10 = a[3], a11 = a[4], a12 = a[5],\n\t a20 = a[6], a21 = a[7], a22 = a[8],\n\t\n\t b01 = a22 * a11 - a12 * a21,\n\t b11 = -a22 * a10 + a12 * a20,\n\t b21 = a21 * a10 - a11 * a20,\n\t\n\t // Calculate the determinant\n\t det = a00 * b01 + a01 * b11 + a02 * b21;\n\t\n\t if (!det) { \n\t return null; \n\t }\n\t det = 1.0 / det;\n\t\n\t out[0] = b01 * det;\n\t out[1] = (-a22 * a01 + a02 * a21) * det;\n\t out[2] = (a12 * a01 - a02 * a11) * det;\n\t out[3] = b11 * det;\n\t out[4] = (a22 * a00 - a02 * a20) * det;\n\t out[5] = (-a12 * a00 + a02 * a10) * det;\n\t out[6] = b21 * det;\n\t out[7] = (-a21 * a00 + a01 * a20) * det;\n\t out[8] = (a11 * a00 - a01 * a10) * det;\n\t return out;\n\t};\n\t\n\t/**\n\t * Calculates the adjugate of a mat3\n\t *\n\t * @param {mat3} out the receiving matrix\n\t * @param {mat3} a the source matrix\n\t * @returns {mat3} out\n\t */\n\tmat3.adjoint = function(out, a) {\n\t var a00 = a[0], a01 = a[1], a02 = a[2],\n\t a10 = a[3], a11 = a[4], a12 = a[5],\n\t a20 = a[6], a21 = a[7], a22 = a[8];\n\t\n\t out[0] = (a11 * a22 - a12 * a21);\n\t out[1] = (a02 * a21 - a01 * a22);\n\t out[2] = (a01 * a12 - a02 * a11);\n\t out[3] = (a12 * a20 - a10 * a22);\n\t out[4] = (a00 * a22 - a02 * a20);\n\t out[5] = (a02 * a10 - a00 * a12);\n\t out[6] = (a10 * a21 - a11 * a20);\n\t out[7] = (a01 * a20 - a00 * a21);\n\t out[8] = (a00 * a11 - a01 * a10);\n\t return out;\n\t};\n\t\n\t/**\n\t * Calculates the determinant of a mat3\n\t *\n\t * @param {mat3} a the source matrix\n\t * @returns {Number} determinant of a\n\t */\n\tmat3.determinant = function (a) {\n\t var a00 = a[0], a01 = a[1], a02 = a[2],\n\t a10 = a[3], a11 = a[4], a12 = a[5],\n\t a20 = a[6], a21 = a[7], a22 = a[8];\n\t\n\t return a00 * (a22 * a11 - a12 * a21) + a01 * (-a22 * a10 + a12 * a20) + a02 * (a21 * a10 - a11 * a20);\n\t};\n\t\n\t/**\n\t * Multiplies two mat3's\n\t *\n\t * @param {mat3} out the receiving matrix\n\t * @param {mat3} a the first operand\n\t * @param {mat3} b the second operand\n\t * @returns {mat3} out\n\t */\n\tmat3.multiply = function (out, a, b) {\n\t var a00 = a[0], a01 = a[1], a02 = a[2],\n\t a10 = a[3], a11 = a[4], a12 = a[5],\n\t a20 = a[6], a21 = a[7], a22 = a[8],\n\t\n\t b00 = b[0], b01 = b[1], b02 = b[2],\n\t b10 = b[3], b11 = b[4], b12 = b[5],\n\t b20 = b[6], b21 = b[7], b22 = b[8];\n\t\n\t out[0] = b00 * a00 + b01 * a10 + b02 * a20;\n\t out[1] = b00 * a01 + b01 * a11 + b02 * a21;\n\t out[2] = b00 * a02 + b01 * a12 + b02 * a22;\n\t\n\t out[3] = b10 * a00 + b11 * a10 + b12 * a20;\n\t out[4] = b10 * a01 + b11 * a11 + b12 * a21;\n\t out[5] = b10 * a02 + b11 * a12 + b12 * a22;\n\t\n\t out[6] = b20 * a00 + b21 * a10 + b22 * a20;\n\t out[7] = b20 * a01 + b21 * a11 + b22 * a21;\n\t out[8] = b20 * a02 + b21 * a12 + b22 * a22;\n\t return out;\n\t};\n\t\n\t/**\n\t * Alias for {@link mat3.multiply}\n\t * @function\n\t */\n\tmat3.mul = mat3.multiply;\n\t\n\t/**\n\t * Translate a mat3 by the given vector\n\t *\n\t * @param {mat3} out the receiving matrix\n\t * @param {mat3} a the matrix to translate\n\t * @param {vec2} v vector to translate by\n\t * @returns {mat3} out\n\t */\n\tmat3.translate = function(out, a, v) {\n\t var a00 = a[0], a01 = a[1], a02 = a[2],\n\t a10 = a[3], a11 = a[4], a12 = a[5],\n\t a20 = a[6], a21 = a[7], a22 = a[8],\n\t x = v[0], y = v[1];\n\t\n\t out[0] = a00;\n\t out[1] = a01;\n\t out[2] = a02;\n\t\n\t out[3] = a10;\n\t out[4] = a11;\n\t out[5] = a12;\n\t\n\t out[6] = x * a00 + y * a10 + a20;\n\t out[7] = x * a01 + y * a11 + a21;\n\t out[8] = x * a02 + y * a12 + a22;\n\t return out;\n\t};\n\t\n\t/**\n\t * Rotates a mat3 by the given angle\n\t *\n\t * @param {mat3} out the receiving matrix\n\t * @param {mat3} a the matrix to rotate\n\t * @param {Number} rad the angle to rotate the matrix by\n\t * @returns {mat3} out\n\t */\n\tmat3.rotate = function (out, a, rad) {\n\t var a00 = a[0], a01 = a[1], a02 = a[2],\n\t a10 = a[3], a11 = a[4], a12 = a[5],\n\t a20 = a[6], a21 = a[7], a22 = a[8],\n\t\n\t s = Math.sin(rad),\n\t c = Math.cos(rad);\n\t\n\t out[0] = c * a00 + s * a10;\n\t out[1] = c * a01 + s * a11;\n\t out[2] = c * a02 + s * a12;\n\t\n\t out[3] = c * a10 - s * a00;\n\t out[4] = c * a11 - s * a01;\n\t out[5] = c * a12 - s * a02;\n\t\n\t out[6] = a20;\n\t out[7] = a21;\n\t out[8] = a22;\n\t return out;\n\t};\n\t\n\t/**\n\t * Scales the mat3 by the dimensions in the given vec2\n\t *\n\t * @param {mat3} out the receiving matrix\n\t * @param {mat3} a the matrix to rotate\n\t * @param {vec2} v the vec2 to scale the matrix by\n\t * @returns {mat3} out\n\t **/\n\tmat3.scale = function(out, a, v) {\n\t var x = v[0], y = v[1];\n\t\n\t out[0] = x * a[0];\n\t out[1] = x * a[1];\n\t out[2] = x * a[2];\n\t\n\t out[3] = y * a[3];\n\t out[4] = y * a[4];\n\t out[5] = y * a[5];\n\t\n\t out[6] = a[6];\n\t out[7] = a[7];\n\t out[8] = a[8];\n\t return out;\n\t};\n\t\n\t/**\n\t * Creates a matrix from a vector translation\n\t * This is equivalent to (but much faster than):\n\t *\n\t * mat3.identity(dest);\n\t * mat3.translate(dest, dest, vec);\n\t *\n\t * @param {mat3} out mat3 receiving operation result\n\t * @param {vec2} v Translation vector\n\t * @returns {mat3} out\n\t */\n\tmat3.fromTranslation = function(out, v) {\n\t out[0] = 1;\n\t out[1] = 0;\n\t out[2] = 0;\n\t out[3] = 0;\n\t out[4] = 1;\n\t out[5] = 0;\n\t out[6] = v[0];\n\t out[7] = v[1];\n\t out[8] = 1;\n\t return out;\n\t}\n\t\n\t/**\n\t * Creates a matrix from a given angle\n\t * This is equivalent to (but much faster than):\n\t *\n\t * mat3.identity(dest);\n\t * mat3.rotate(dest, dest, rad);\n\t *\n\t * @param {mat3} out mat3 receiving operation result\n\t * @param {Number} rad the angle to rotate the matrix by\n\t * @returns {mat3} out\n\t */\n\tmat3.fromRotation = function(out, rad) {\n\t var s = Math.sin(rad), c = Math.cos(rad);\n\t\n\t out[0] = c;\n\t out[1] = s;\n\t out[2] = 0;\n\t\n\t out[3] = -s;\n\t out[4] = c;\n\t out[5] = 0;\n\t\n\t out[6] = 0;\n\t out[7] = 0;\n\t out[8] = 1;\n\t return out;\n\t}\n\t\n\t/**\n\t * Creates a matrix from a vector scaling\n\t * This is equivalent to (but much faster than):\n\t *\n\t * mat3.identity(dest);\n\t * mat3.scale(dest, dest, vec);\n\t *\n\t * @param {mat3} out mat3 receiving operation result\n\t * @param {vec2} v Scaling vector\n\t * @returns {mat3} out\n\t */\n\tmat3.fromScaling = function(out, v) {\n\t out[0] = v[0];\n\t out[1] = 0;\n\t out[2] = 0;\n\t\n\t out[3] = 0;\n\t out[4] = v[1];\n\t out[5] = 0;\n\t\n\t out[6] = 0;\n\t out[7] = 0;\n\t out[8] = 1;\n\t return out;\n\t}\n\t\n\t/**\n\t * Copies the values from a mat2d into a mat3\n\t *\n\t * @param {mat3} out the receiving matrix\n\t * @param {mat2d} a the matrix to copy\n\t * @returns {mat3} out\n\t **/\n\tmat3.fromMat2d = function(out, a) {\n\t out[0] = a[0];\n\t out[1] = a[1];\n\t out[2] = 0;\n\t\n\t out[3] = a[2];\n\t out[4] = a[3];\n\t out[5] = 0;\n\t\n\t out[6] = a[4];\n\t out[7] = a[5];\n\t out[8] = 1;\n\t return out;\n\t};\n\t\n\t/**\n\t* Calculates a 3x3 matrix from the given quaternion\n\t*\n\t* @param {mat3} out mat3 receiving operation result\n\t* @param {quat} q Quaternion to create matrix from\n\t*\n\t* @returns {mat3} out\n\t*/\n\tmat3.fromQuat = function (out, q) {\n\t var x = q[0], y = q[1], z = q[2], w = q[3],\n\t x2 = x + x,\n\t y2 = y + y,\n\t z2 = z + z,\n\t\n\t xx = x * x2,\n\t yx = y * x2,\n\t yy = y * y2,\n\t zx = z * x2,\n\t zy = z * y2,\n\t zz = z * z2,\n\t wx = w * x2,\n\t wy = w * y2,\n\t wz = w * z2;\n\t\n\t out[0] = 1 - yy - zz;\n\t out[3] = yx - wz;\n\t out[6] = zx + wy;\n\t\n\t out[1] = yx + wz;\n\t out[4] = 1 - xx - zz;\n\t out[7] = zy - wx;\n\t\n\t out[2] = zx - wy;\n\t out[5] = zy + wx;\n\t out[8] = 1 - xx - yy;\n\t\n\t return out;\n\t};\n\t\n\t/**\n\t* Calculates a 3x3 normal matrix (transpose inverse) from the 4x4 matrix\n\t*\n\t* @param {mat3} out mat3 receiving operation result\n\t* @param {mat4} a Mat4 to derive the normal matrix from\n\t*\n\t* @returns {mat3} out\n\t*/\n\tmat3.normalFromMat4 = function (out, a) {\n\t var a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3],\n\t a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7],\n\t a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11],\n\t a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15],\n\t\n\t b00 = a00 * a11 - a01 * a10,\n\t b01 = a00 * a12 - a02 * a10,\n\t b02 = a00 * a13 - a03 * a10,\n\t b03 = a01 * a12 - a02 * a11,\n\t b04 = a01 * a13 - a03 * a11,\n\t b05 = a02 * a13 - a03 * a12,\n\t b06 = a20 * a31 - a21 * a30,\n\t b07 = a20 * a32 - a22 * a30,\n\t b08 = a20 * a33 - a23 * a30,\n\t b09 = a21 * a32 - a22 * a31,\n\t b10 = a21 * a33 - a23 * a31,\n\t b11 = a22 * a33 - a23 * a32,\n\t\n\t // Calculate the determinant\n\t det = b00 * b11 - b01 * b10 + b02 * b09 + b03 * b08 - b04 * b07 + b05 * b06;\n\t\n\t if (!det) { \n\t return null; \n\t }\n\t det = 1.0 / det;\n\t\n\t out[0] = (a11 * b11 - a12 * b10 + a13 * b09) * det;\n\t out[1] = (a12 * b08 - a10 * b11 - a13 * b07) * det;\n\t out[2] = (a10 * b10 - a11 * b08 + a13 * b06) * det;\n\t\n\t out[3] = (a02 * b10 - a01 * b11 - a03 * b09) * det;\n\t out[4] = (a00 * b11 - a02 * b08 + a03 * b07) * det;\n\t out[5] = (a01 * b08 - a00 * b10 - a03 * b06) * det;\n\t\n\t out[6] = (a31 * b05 - a32 * b04 + a33 * b03) * det;\n\t out[7] = (a32 * b02 - a30 * b05 - a33 * b01) * det;\n\t out[8] = (a30 * b04 - a31 * b02 + a33 * b00) * det;\n\t\n\t return out;\n\t};\n\t\n\t/**\n\t * Returns a string representation of a mat3\n\t *\n\t * @param {mat3} mat matrix to represent as a string\n\t * @returns {String} string representation of the matrix\n\t */\n\tmat3.str = function (a) {\n\t return 'mat3(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' + \n\t a[3] + ', ' + a[4] + ', ' + a[5] + ', ' + \n\t a[6] + ', ' + a[7] + ', ' + a[8] + ')';\n\t};\n\t\n\t/**\n\t * Returns Frobenius norm of a mat3\n\t *\n\t * @param {mat3} a the matrix to calculate Frobenius norm of\n\t * @returns {Number} Frobenius norm\n\t */\n\tmat3.frob = function (a) {\n\t return(Math.sqrt(Math.pow(a[0], 2) + Math.pow(a[1], 2) + Math.pow(a[2], 2) + Math.pow(a[3], 2) + Math.pow(a[4], 2) + Math.pow(a[5], 2) + Math.pow(a[6], 2) + Math.pow(a[7], 2) + Math.pow(a[8], 2)))\n\t};\n\t\n\t\n\tmodule.exports = mat3;\n\n\n/***/ },\n/* 14 */\n/***/ function(module, exports, __webpack_require__) {\n\n\t/* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV.\n\t\n\tPermission is hereby granted, free of charge, to any person obtaining a copy\n\tof this software and associated documentation files (the \"Software\"), to deal\n\tin the Software without restriction, including without limitation the rights\n\tto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n\tcopies of the Software, and to permit persons to whom the Software is\n\tfurnished to do so, subject to the following conditions:\n\t\n\tThe above copyright notice and this permission notice shall be included in\n\tall copies or substantial portions of the Software.\n\t\n\tTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n\tIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n\tFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n\tAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n\tLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n\tOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n\tTHE SOFTWARE. */\n\t\n\tvar glMatrix = __webpack_require__(10);\n\t\n\t/**\n\t * @class 4x4 Matrix\n\t * @name mat4\n\t */\n\tvar mat4 = {};\n\t\n\t/**\n\t * Creates a new identity mat4\n\t *\n\t * @returns {mat4} a new 4x4 matrix\n\t */\n\tmat4.create = function() {\n\t var out = new glMatrix.ARRAY_TYPE(16);\n\t out[0] = 1;\n\t out[1] = 0;\n\t out[2] = 0;\n\t out[3] = 0;\n\t out[4] = 0;\n\t out[5] = 1;\n\t out[6] = 0;\n\t out[7] = 0;\n\t out[8] = 0;\n\t out[9] = 0;\n\t out[10] = 1;\n\t out[11] = 0;\n\t out[12] = 0;\n\t out[13] = 0;\n\t out[14] = 0;\n\t out[15] = 1;\n\t return out;\n\t};\n\t\n\t/**\n\t * Creates a new mat4 initialized with values from an existing matrix\n\t *\n\t * @param {mat4} a matrix to clone\n\t * @returns {mat4} a new 4x4 matrix\n\t */\n\tmat4.clone = function(a) {\n\t var out = new glMatrix.ARRAY_TYPE(16);\n\t out[0] = a[0];\n\t out[1] = a[1];\n\t out[2] = a[2];\n\t out[3] = a[3];\n\t out[4] = a[4];\n\t out[5] = a[5];\n\t out[6] = a[6];\n\t out[7] = a[7];\n\t out[8] = a[8];\n\t out[9] = a[9];\n\t out[10] = a[10];\n\t out[11] = a[11];\n\t out[12] = a[12];\n\t out[13] = a[13];\n\t out[14] = a[14];\n\t out[15] = a[15];\n\t return out;\n\t};\n\t\n\t/**\n\t * Copy the values from one mat4 to another\n\t *\n\t * @param {mat4} out the receiving matrix\n\t * @param {mat4} a the source matrix\n\t * @returns {mat4} out\n\t */\n\tmat4.copy = function(out, a) {\n\t out[0] = a[0];\n\t out[1] = a[1];\n\t out[2] = a[2];\n\t out[3] = a[3];\n\t out[4] = a[4];\n\t out[5] = a[5];\n\t out[6] = a[6];\n\t out[7] = a[7];\n\t out[8] = a[8];\n\t out[9] = a[9];\n\t out[10] = a[10];\n\t out[11] = a[11];\n\t out[12] = a[12];\n\t out[13] = a[13];\n\t out[14] = a[14];\n\t out[15] = a[15];\n\t return out;\n\t};\n\t\n\t/**\n\t * Set a mat4 to the identity matrix\n\t *\n\t * @param {mat4} out the receiving matrix\n\t * @returns {mat4} out\n\t */\n\tmat4.identity = function(out) {\n\t out[0] = 1;\n\t out[1] = 0;\n\t out[2] = 0;\n\t out[3] = 0;\n\t out[4] = 0;\n\t out[5] = 1;\n\t out[6] = 0;\n\t out[7] = 0;\n\t out[8] = 0;\n\t out[9] = 0;\n\t out[10] = 1;\n\t out[11] = 0;\n\t out[12] = 0;\n\t out[13] = 0;\n\t out[14] = 0;\n\t out[15] = 1;\n\t return out;\n\t};\n\t\n\t/**\n\t * Transpose the values of a mat4\n\t *\n\t * @param {mat4} out the receiving matrix\n\t * @param {mat4} a the source matrix\n\t * @returns {mat4} out\n\t */\n\tmat4.transpose = function(out, a) {\n\t // If we are transposing ourselves we can skip a few steps but have to cache some values\n\t if (out === a) {\n\t var a01 = a[1], a02 = a[2], a03 = a[3],\n\t a12 = a[6], a13 = a[7],\n\t a23 = a[11];\n\t\n\t out[1] = a[4];\n\t out[2] = a[8];\n\t out[3] = a[12];\n\t out[4] = a01;\n\t out[6] = a[9];\n\t out[7] = a[13];\n\t out[8] = a02;\n\t out[9] = a12;\n\t out[11] = a[14];\n\t out[12] = a03;\n\t out[13] = a13;\n\t out[14] = a23;\n\t } else {\n\t out[0] = a[0];\n\t out[1] = a[4];\n\t out[2] = a[8];\n\t out[3] = a[12];\n\t out[4] = a[1];\n\t out[5] = a[5];\n\t out[6] = a[9];\n\t out[7] = a[13];\n\t out[8] = a[2];\n\t out[9] = a[6];\n\t out[10] = a[10];\n\t out[11] = a[14];\n\t out[12] = a[3];\n\t out[13] = a[7];\n\t out[14] = a[11];\n\t out[15] = a[15];\n\t }\n\t \n\t return out;\n\t};\n\t\n\t/**\n\t * Inverts a mat4\n\t *\n\t * @param {mat4} out the receiving matrix\n\t * @param {mat4} a the source matrix\n\t * @returns {mat4} out\n\t */\n\tmat4.invert = function(out, a) {\n\t var a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3],\n\t a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7],\n\t a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11],\n\t a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15],\n\t\n\t b00 = a00 * a11 - a01 * a10,\n\t b01 = a00 * a12 - a02 * a10,\n\t b02 = a00 * a13 - a03 * a10,\n\t b03 = a01 * a12 - a02 * a11,\n\t b04 = a01 * a13 - a03 * a11,\n\t b05 = a02 * a13 - a03 * a12,\n\t b06 = a20 * a31 - a21 * a30,\n\t b07 = a20 * a32 - a22 * a30,\n\t b08 = a20 * a33 - a23 * a30,\n\t b09 = a21 * a32 - a22 * a31,\n\t b10 = a21 * a33 - a23 * a31,\n\t b11 = a22 * a33 - a23 * a32,\n\t\n\t // Calculate the determinant\n\t det = b00 * b11 - b01 * b10 + b02 * b09 + b03 * b08 - b04 * b07 + b05 * b06;\n\t\n\t if (!det) { \n\t return null; \n\t }\n\t det = 1.0 / det;\n\t\n\t out[0] = (a11 * b11 - a12 * b10 + a13 * b09) * det;\n\t out[1] = (a02 * b10 - a01 * b11 - a03 * b09) * det;\n\t out[2] = (a31 * b05 - a32 * b04 + a33 * b03) * det;\n\t out[3] = (a22 * b04 - a21 * b05 - a23 * b03) * det;\n\t out[4] = (a12 * b08 - a10 * b11 - a13 * b07) * det;\n\t out[5] = (a00 * b11 - a02 * b08 + a03 * b07) * det;\n\t out[6] = (a32 * b02 - a30 * b05 - a33 * b01) * det;\n\t out[7] = (a20 * b05 - a22 * b02 + a23 * b01) * det;\n\t out[8] = (a10 * b10 - a11 * b08 + a13 * b06) * det;\n\t out[9] = (a01 * b08 - a00 * b10 - a03 * b06) * det;\n\t out[10] = (a30 * b04 - a31 * b02 + a33 * b00) * det;\n\t out[11] = (a21 * b02 - a20 * b04 - a23 * b00) * det;\n\t out[12] = (a11 * b07 - a10 * b09 - a12 * b06) * det;\n\t out[13] = (a00 * b09 - a01 * b07 + a02 * b06) * det;\n\t out[14] = (a31 * b01 - a30 * b03 - a32 * b00) * det;\n\t out[15] = (a20 * b03 - a21 * b01 + a22 * b00) * det;\n\t\n\t return out;\n\t};\n\t\n\t/**\n\t * Calculates the adjugate of a mat4\n\t *\n\t * @param {mat4} out the receiving matrix\n\t * @param {mat4} a the source matrix\n\t * @returns {mat4} out\n\t */\n\tmat4.adjoint = function(out, a) {\n\t var a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3],\n\t a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7],\n\t a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11],\n\t a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15];\n\t\n\t out[0] = (a11 * (a22 * a33 - a23 * a32) - a21 * (a12 * a33 - a13 * a32) + a31 * (a12 * a23 - a13 * a22));\n\t out[1] = -(a01 * (a22 * a33 - a23 * a32) - a21 * (a02 * a33 - a03 * a32) + a31 * (a02 * a23 - a03 * a22));\n\t out[2] = (a01 * (a12 * a33 - a13 * a32) - a11 * (a02 * a33 - a03 * a32) + a31 * (a02 * a13 - a03 * a12));\n\t out[3] = -(a01 * (a12 * a23 - a13 * a22) - a11 * (a02 * a23 - a03 * a22) + a21 * (a02 * a13 - a03 * a12));\n\t out[4] = -(a10 * (a22 * a33 - a23 * a32) - a20 * (a12 * a33 - a13 * a32) + a30 * (a12 * a23 - a13 * a22));\n\t out[5] = (a00 * (a22 * a33 - a23 * a32) - a20 * (a02 * a33 - a03 * a32) + a30 * (a02 * a23 - a03 * a22));\n\t out[6] = -(a00 * (a12 * a33 - a13 * a32) - a10 * (a02 * a33 - a03 * a32) + a30 * (a02 * a13 - a03 * a12));\n\t out[7] = (a00 * (a12 * a23 - a13 * a22) - a10 * (a02 * a23 - a03 * a22) + a20 * (a02 * a13 - a03 * a12));\n\t out[8] = (a10 * (a21 * a33 - a23 * a31) - a20 * (a11 * a33 - a13 * a31) + a30 * (a11 * a23 - a13 * a21));\n\t out[9] = -(a00 * (a21 * a33 - a23 * a31) - a20 * (a01 * a33 - a03 * a31) + a30 * (a01 * a23 - a03 * a21));\n\t out[10] = (a00 * (a11 * a33 - a13 * a31) - a10 * (a01 * a33 - a03 * a31) + a30 * (a01 * a13 - a03 * a11));\n\t out[11] = -(a00 * (a11 * a23 - a13 * a21) - a10 * (a01 * a23 - a03 * a21) + a20 * (a01 * a13 - a03 * a11));\n\t out[12] = -(a10 * (a21 * a32 - a22 * a31) - a20 * (a11 * a32 - a12 * a31) + a30 * (a11 * a22 - a12 * a21));\n\t out[13] = (a00 * (a21 * a32 - a22 * a31) - a20 * (a01 * a32 - a02 * a31) + a30 * (a01 * a22 - a02 * a21));\n\t out[14] = -(a00 * (a11 * a32 - a12 * a31) - a10 * (a01 * a32 - a02 * a31) + a30 * (a01 * a12 - a02 * a11));\n\t out[15] = (a00 * (a11 * a22 - a12 * a21) - a10 * (a01 * a22 - a02 * a21) + a20 * (a01 * a12 - a02 * a11));\n\t return out;\n\t};\n\t\n\t/**\n\t * Calculates the determinant of a mat4\n\t *\n\t * @param {mat4} a the source matrix\n\t * @returns {Number} determinant of a\n\t */\n\tmat4.determinant = function (a) {\n\t var a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3],\n\t a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7],\n\t a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11],\n\t a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15],\n\t\n\t b00 = a00 * a11 - a01 * a10,\n\t b01 = a00 * a12 - a02 * a10,\n\t b02 = a00 * a13 - a03 * a10,\n\t b03 = a01 * a12 - a02 * a11,\n\t b04 = a01 * a13 - a03 * a11,\n\t b05 = a02 * a13 - a03 * a12,\n\t b06 = a20 * a31 - a21 * a30,\n\t b07 = a20 * a32 - a22 * a30,\n\t b08 = a20 * a33 - a23 * a30,\n\t b09 = a21 * a32 - a22 * a31,\n\t b10 = a21 * a33 - a23 * a31,\n\t b11 = a22 * a33 - a23 * a32;\n\t\n\t // Calculate the determinant\n\t return b00 * b11 - b01 * b10 + b02 * b09 + b03 * b08 - b04 * b07 + b05 * b06;\n\t};\n\t\n\t/**\n\t * Multiplies two mat4's\n\t *\n\t * @param {mat4} out the receiving matrix\n\t * @param {mat4} a the first operand\n\t * @param {mat4} b the second operand\n\t * @returns {mat4} out\n\t */\n\tmat4.multiply = function (out, a, b) {\n\t var a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3],\n\t a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7],\n\t a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11],\n\t a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15];\n\t\n\t // Cache only the current line of the second matrix\n\t var b0 = b[0], b1 = b[1], b2 = b[2], b3 = b[3]; \n\t out[0] = b0*a00 + b1*a10 + b2*a20 + b3*a30;\n\t out[1] = b0*a01 + b1*a11 + b2*a21 + b3*a31;\n\t out[2] = b0*a02 + b1*a12 + b2*a22 + b3*a32;\n\t out[3] = b0*a03 + b1*a13 + b2*a23 + b3*a33;\n\t\n\t b0 = b[4]; b1 = b[5]; b2 = b[6]; b3 = b[7];\n\t out[4] = b0*a00 + b1*a10 + b2*a20 + b3*a30;\n\t out[5] = b0*a01 + b1*a11 + b2*a21 + b3*a31;\n\t out[6] = b0*a02 + b1*a12 + b2*a22 + b3*a32;\n\t out[7] = b0*a03 + b1*a13 + b2*a23 + b3*a33;\n\t\n\t b0 = b[8]; b1 = b[9]; b2 = b[10]; b3 = b[11];\n\t out[8] = b0*a00 + b1*a10 + b2*a20 + b3*a30;\n\t out[9] = b0*a01 + b1*a11 + b2*a21 + b3*a31;\n\t out[10] = b0*a02 + b1*a12 + b2*a22 + b3*a32;\n\t out[11] = b0*a03 + b1*a13 + b2*a23 + b3*a33;\n\t\n\t b0 = b[12]; b1 = b[13]; b2 = b[14]; b3 = b[15];\n\t out[12] = b0*a00 + b1*a10 + b2*a20 + b3*a30;\n\t out[13] = b0*a01 + b1*a11 + b2*a21 + b3*a31;\n\t out[14] = b0*a02 + b1*a12 + b2*a22 + b3*a32;\n\t out[15] = b0*a03 + b1*a13 + b2*a23 + b3*a33;\n\t return out;\n\t};\n\t\n\t/**\n\t * Alias for {@link mat4.multiply}\n\t * @function\n\t */\n\tmat4.mul = mat4.multiply;\n\t\n\t/**\n\t * Translate a mat4 by the given vector\n\t *\n\t * @param {mat4} out the receiving matrix\n\t * @param {mat4} a the matrix to translate\n\t * @param {vec3} v vector to translate by\n\t * @returns {mat4} out\n\t */\n\tmat4.translate = function (out, a, v) {\n\t var x = v[0], y = v[1], z = v[2],\n\t a00, a01, a02, a03,\n\t a10, a11, a12, a13,\n\t a20, a21, a22, a23;\n\t\n\t if (a === out) {\n\t out[12] = a[0] * x + a[4] * y + a[8] * z + a[12];\n\t out[13] = a[1] * x + a[5] * y + a[9] * z + a[13];\n\t out[14] = a[2] * x + a[6] * y + a[10] * z + a[14];\n\t out[15] = a[3] * x + a[7] * y + a[11] * z + a[15];\n\t } else {\n\t a00 = a[0]; a01 = a[1]; a02 = a[2]; a03 = a[3];\n\t a10 = a[4]; a11 = a[5]; a12 = a[6]; a13 = a[7];\n\t a20 = a[8]; a21 = a[9]; a22 = a[10]; a23 = a[11];\n\t\n\t out[0] = a00; out[1] = a01; out[2] = a02; out[3] = a03;\n\t out[4] = a10; out[5] = a11; out[6] = a12; out[7] = a13;\n\t out[8] = a20; out[9] = a21; out[10] = a22; out[11] = a23;\n\t\n\t out[12] = a00 * x + a10 * y + a20 * z + a[12];\n\t out[13] = a01 * x + a11 * y + a21 * z + a[13];\n\t out[14] = a02 * x + a12 * y + a22 * z + a[14];\n\t out[15] = a03 * x + a13 * y + a23 * z + a[15];\n\t }\n\t\n\t return out;\n\t};\n\t\n\t/**\n\t * Scales the mat4 by the dimensions in the given vec3\n\t *\n\t * @param {mat4} out the receiving matrix\n\t * @param {mat4} a the matrix to scale\n\t * @param {vec3} v the vec3 to scale the matrix by\n\t * @returns {mat4} out\n\t **/\n\tmat4.scale = function(out, a, v) {\n\t var x = v[0], y = v[1], z = v[2];\n\t\n\t out[0] = a[0] * x;\n\t out[1] = a[1] * x;\n\t out[2] = a[2] * x;\n\t out[3] = a[3] * x;\n\t out[4] = a[4] * y;\n\t out[5] = a[5] * y;\n\t out[6] = a[6] * y;\n\t out[7] = a[7] * y;\n\t out[8] = a[8] * z;\n\t out[9] = a[9] * z;\n\t out[10] = a[10] * z;\n\t out[11] = a[11] * z;\n\t out[12] = a[12];\n\t out[13] = a[13];\n\t out[14] = a[14];\n\t out[15] = a[15];\n\t return out;\n\t};\n\t\n\t/**\n\t * Rotates a mat4 by the given angle around the given axis\n\t *\n\t * @param {mat4} out the receiving matrix\n\t * @param {mat4} a the matrix to rotate\n\t * @param {Number} rad the angle to rotate the matrix by\n\t * @param {vec3} axis the axis to rotate around\n\t * @returns {mat4} out\n\t */\n\tmat4.rotate = function (out, a, rad, axis) {\n\t var x = axis[0], y = axis[1], z = axis[2],\n\t len = Math.sqrt(x * x + y * y + z * z),\n\t s, c, t,\n\t a00, a01, a02, a03,\n\t a10, a11, a12, a13,\n\t a20, a21, a22, a23,\n\t b00, b01, b02,\n\t b10, b11, b12,\n\t b20, b21, b22;\n\t\n\t if (Math.abs(len) < glMatrix.EPSILON) { return null; }\n\t \n\t len = 1 / len;\n\t x *= len;\n\t y *= len;\n\t z *= len;\n\t\n\t s = Math.sin(rad);\n\t c = Math.cos(rad);\n\t t = 1 - c;\n\t\n\t a00 = a[0]; a01 = a[1]; a02 = a[2]; a03 = a[3];\n\t a10 = a[4]; a11 = a[5]; a12 = a[6]; a13 = a[7];\n\t a20 = a[8]; a21 = a[9]; a22 = a[10]; a23 = a[11];\n\t\n\t // Construct the elements of the rotation matrix\n\t b00 = x * x * t + c; b01 = y * x * t + z * s; b02 = z * x * t - y * s;\n\t b10 = x * y * t - z * s; b11 = y * y * t + c; b12 = z * y * t + x * s;\n\t b20 = x * z * t + y * s; b21 = y * z * t - x * s; b22 = z * z * t + c;\n\t\n\t // Perform rotation-specific matrix multiplication\n\t out[0] = a00 * b00 + a10 * b01 + a20 * b02;\n\t out[1] = a01 * b00 + a11 * b01 + a21 * b02;\n\t out[2] = a02 * b00 + a12 * b01 + a22 * b02;\n\t out[3] = a03 * b00 + a13 * b01 + a23 * b02;\n\t out[4] = a00 * b10 + a10 * b11 + a20 * b12;\n\t out[5] = a01 * b10 + a11 * b11 + a21 * b12;\n\t out[6] = a02 * b10 + a12 * b11 + a22 * b12;\n\t out[7] = a03 * b10 + a13 * b11 + a23 * b12;\n\t out[8] = a00 * b20 + a10 * b21 + a20 * b22;\n\t out[9] = a01 * b20 + a11 * b21 + a21 * b22;\n\t out[10] = a02 * b20 + a12 * b21 + a22 * b22;\n\t out[11] = a03 * b20 + a13 * b21 + a23 * b22;\n\t\n\t if (a !== out) { // If the source and destination differ, copy the unchanged last row\n\t out[12] = a[12];\n\t out[13] = a[13];\n\t out[14] = a[14];\n\t out[15] = a[15];\n\t }\n\t return out;\n\t};\n\t\n\t/**\n\t * Rotates a matrix by the given angle around the X axis\n\t *\n\t * @param {mat4} out the receiving matrix\n\t * @param {mat4} a the matrix to rotate\n\t * @param {Number} rad the angle to rotate the matrix by\n\t * @returns {mat4} out\n\t */\n\tmat4.rotateX = function (out, a, rad) {\n\t var s = Math.sin(rad),\n\t c = Math.cos(rad),\n\t a10 = a[4],\n\t a11 = a[5],\n\t a12 = a[6],\n\t a13 = a[7],\n\t a20 = a[8],\n\t a21 = a[9],\n\t a22 = a[10],\n\t a23 = a[11];\n\t\n\t if (a !== out) { // If the source and destination differ, copy the unchanged rows\n\t out[0] = a[0];\n\t out[1] = a[1];\n\t out[2] = a[2];\n\t out[3] = a[3];\n\t out[12] = a[12];\n\t out[13] = a[13];\n\t out[14] = a[14];\n\t out[15] = a[15];\n\t }\n\t\n\t // Perform axis-specific matrix multiplication\n\t out[4] = a10 * c + a20 * s;\n\t out[5] = a11 * c + a21 * s;\n\t out[6] = a12 * c + a22 * s;\n\t out[7] = a13 * c + a23 * s;\n\t out[8] = a20 * c - a10 * s;\n\t out[9] = a21 * c - a11 * s;\n\t out[10] = a22 * c - a12 * s;\n\t out[11] = a23 * c - a13 * s;\n\t return out;\n\t};\n\t\n\t/**\n\t * Rotates a matrix by the given angle around the Y axis\n\t *\n\t * @param {mat4} out the receiving matrix\n\t * @param {mat4} a the matrix to rotate\n\t * @param {Number} rad the angle to rotate the matrix by\n\t * @returns {mat4} out\n\t */\n\tmat4.rotateY = function (out, a, rad) {\n\t var s = Math.sin(rad),\n\t c = Math.cos(rad),\n\t a00 = a[0],\n\t a01 = a[1],\n\t a02 = a[2],\n\t a03 = a[3],\n\t a20 = a[8],\n\t a21 = a[9],\n\t a22 = a[10],\n\t a23 = a[11];\n\t\n\t if (a !== out) { // If the source and destination differ, copy the unchanged rows\n\t out[4] = a[4];\n\t out[5] = a[5];\n\t out[6] = a[6];\n\t out[7] = a[7];\n\t out[12] = a[12];\n\t out[13] = a[13];\n\t out[14] = a[14];\n\t out[15] = a[15];\n\t }\n\t\n\t // Perform axis-specific matrix multiplication\n\t out[0] = a00 * c - a20 * s;\n\t out[1] = a01 * c - a21 * s;\n\t out[2] = a02 * c - a22 * s;\n\t out[3] = a03 * c - a23 * s;\n\t out[8] = a00 * s + a20 * c;\n\t out[9] = a01 * s + a21 * c;\n\t out[10] = a02 * s + a22 * c;\n\t out[11] = a03 * s + a23 * c;\n\t return out;\n\t};\n\t\n\t/**\n\t * Rotates a matrix by the given angle around the Z axis\n\t *\n\t * @param {mat4} out the receiving matrix\n\t * @param {mat4} a the matrix to rotate\n\t * @param {Number} rad the angle to rotate the matrix by\n\t * @returns {mat4} out\n\t */\n\tmat4.rotateZ = function (out, a, rad) {\n\t var s = Math.sin(rad),\n\t c = Math.cos(rad),\n\t a00 = a[0],\n\t a01 = a[1],\n\t a02 = a[2],\n\t a03 = a[3],\n\t a10 = a[4],\n\t a11 = a[5],\n\t a12 = a[6],\n\t a13 = a[7];\n\t\n\t if (a !== out) { // If the source and destination differ, copy the unchanged last row\n\t out[8] = a[8];\n\t out[9] = a[9];\n\t out[10] = a[10];\n\t out[11] = a[11];\n\t out[12] = a[12];\n\t out[13] = a[13];\n\t out[14] = a[14];\n\t out[15] = a[15];\n\t }\n\t\n\t // Perform axis-specific matrix multiplication\n\t out[0] = a00 * c + a10 * s;\n\t out[1] = a01 * c + a11 * s;\n\t out[2] = a02 * c + a12 * s;\n\t out[3] = a03 * c + a13 * s;\n\t out[4] = a10 * c - a00 * s;\n\t out[5] = a11 * c - a01 * s;\n\t out[6] = a12 * c - a02 * s;\n\t out[7] = a13 * c - a03 * s;\n\t return out;\n\t};\n\t\n\t/**\n\t * Creates a matrix from a vector translation\n\t * This is equivalent to (but much faster than):\n\t *\n\t * mat4.identity(dest);\n\t * mat4.translate(dest, dest, vec);\n\t *\n\t * @param {mat4} out mat4 receiving operation result\n\t * @param {vec3} v Translation vector\n\t * @returns {mat4} out\n\t */\n\tmat4.fromTranslation = function(out, v) {\n\t out[0] = 1;\n\t out[1] = 0;\n\t out[2] = 0;\n\t out[3] = 0;\n\t out[4] = 0;\n\t out[5] = 1;\n\t out[6] = 0;\n\t out[7] = 0;\n\t out[8] = 0;\n\t out[9] = 0;\n\t out[10] = 1;\n\t out[11] = 0;\n\t out[12] = v[0];\n\t out[13] = v[1];\n\t out[14] = v[2];\n\t out[15] = 1;\n\t return out;\n\t}\n\t\n\t/**\n\t * Creates a matrix from a vector scaling\n\t * This is equivalent to (but much faster than):\n\t *\n\t * mat4.identity(dest);\n\t * mat4.scale(dest, dest, vec);\n\t *\n\t * @param {mat4} out mat4 receiving operation result\n\t * @param {vec3} v Scaling vector\n\t * @returns {mat4} out\n\t */\n\tmat4.fromScaling = function(out, v) {\n\t out[0] = v[0];\n\t out[1] = 0;\n\t out[2] = 0;\n\t out[3] = 0;\n\t out[4] = 0;\n\t out[5] = v[1];\n\t out[6] = 0;\n\t out[7] = 0;\n\t out[8] = 0;\n\t out[9] = 0;\n\t out[10] = v[2];\n\t out[11] = 0;\n\t out[12] = 0;\n\t out[13] = 0;\n\t out[14] = 0;\n\t out[15] = 1;\n\t return out;\n\t}\n\t\n\t/**\n\t * Creates a matrix from a given angle around a given axis\n\t * This is equivalent to (but much faster than):\n\t *\n\t * mat4.identity(dest);\n\t * mat4.rotate(dest, dest, rad, axis);\n\t *\n\t * @param {mat4} out mat4 receiving operation result\n\t * @param {Number} rad the angle to rotate the matrix by\n\t * @param {vec3} axis the axis to rotate around\n\t * @returns {mat4} out\n\t */\n\tmat4.fromRotation = function(out, rad, axis) {\n\t var x = axis[0], y = axis[1], z = axis[2],\n\t len = Math.sqrt(x * x + y * y + z * z),\n\t s, c, t;\n\t \n\t if (Math.abs(len) < glMatrix.EPSILON) { return null; }\n\t \n\t len = 1 / len;\n\t x *= len;\n\t y *= len;\n\t z *= len;\n\t \n\t s = Math.sin(rad);\n\t c = Math.cos(rad);\n\t t = 1 - c;\n\t \n\t // Perform rotation-specific matrix multiplication\n\t out[0] = x * x * t + c;\n\t out[1] = y * x * t + z * s;\n\t out[2] = z * x * t - y * s;\n\t out[3] = 0;\n\t out[4] = x * y * t - z * s;\n\t out[5] = y * y * t + c;\n\t out[6] = z * y * t + x * s;\n\t out[7] = 0;\n\t out[8] = x * z * t + y * s;\n\t out[9] = y * z * t - x * s;\n\t out[10] = z * z * t + c;\n\t out[11] = 0;\n\t out[12] = 0;\n\t out[13] = 0;\n\t out[14] = 0;\n\t out[15] = 1;\n\t return out;\n\t}\n\t\n\t/**\n\t * Creates a matrix from the given angle around the X axis\n\t * This is equivalent to (but much faster than):\n\t *\n\t * mat4.identity(dest);\n\t * mat4.rotateX(dest, dest, rad);\n\t *\n\t * @param {mat4} out mat4 receiving operation result\n\t * @param {Number} rad the angle to rotate the matrix by\n\t * @returns {mat4} out\n\t */\n\tmat4.fromXRotation = function(out, rad) {\n\t var s = Math.sin(rad),\n\t c = Math.cos(rad);\n\t \n\t // Perform axis-specific matrix multiplication\n\t out[0] = 1;\n\t out[1] = 0;\n\t out[2] = 0;\n\t out[3] = 0;\n\t out[4] = 0;\n\t out[5] = c;\n\t out[6] = s;\n\t out[7] = 0;\n\t out[8] = 0;\n\t out[9] = -s;\n\t out[10] = c;\n\t out[11] = 0;\n\t out[12] = 0;\n\t out[13] = 0;\n\t out[14] = 0;\n\t out[15] = 1;\n\t return out;\n\t}\n\t\n\t/**\n\t * Creates a matrix from the given angle around the Y axis\n\t * This is equivalent to (but much faster than):\n\t *\n\t * mat4.identity(dest);\n\t * mat4.rotateY(dest, dest, rad);\n\t *\n\t * @param {mat4} out mat4 receiving operation result\n\t * @param {Number} rad the angle to rotate the matrix by\n\t * @returns {mat4} out\n\t */\n\tmat4.fromYRotation = function(out, rad) {\n\t var s = Math.sin(rad),\n\t c = Math.cos(rad);\n\t \n\t // Perform axis-specific matrix multiplication\n\t out[0] = c;\n\t out[1] = 0;\n\t out[2] = -s;\n\t out[3] = 0;\n\t out[4] = 0;\n\t out[5] = 1;\n\t out[6] = 0;\n\t out[7] = 0;\n\t out[8] = s;\n\t out[9] = 0;\n\t out[10] = c;\n\t out[11] = 0;\n\t out[12] = 0;\n\t out[13] = 0;\n\t out[14] = 0;\n\t out[15] = 1;\n\t return out;\n\t}\n\t\n\t/**\n\t * Creates a matrix from the given angle around the Z axis\n\t * This is equivalent to (but much faster than):\n\t *\n\t * mat4.identity(dest);\n\t * mat4.rotateZ(dest, dest, rad);\n\t *\n\t * @param {mat4} out mat4 receiving operation result\n\t * @param {Number} rad the angle to rotate the matrix by\n\t * @returns {mat4} out\n\t */\n\tmat4.fromZRotation = function(out, rad) {\n\t var s = Math.sin(rad),\n\t c = Math.cos(rad);\n\t \n\t // Perform axis-specific matrix multiplication\n\t out[0] = c;\n\t out[1] = s;\n\t out[2] = 0;\n\t out[3] = 0;\n\t out[4] = -s;\n\t out[5] = c;\n\t out[6] = 0;\n\t out[7] = 0;\n\t out[8] = 0;\n\t out[9] = 0;\n\t out[10] = 1;\n\t out[11] = 0;\n\t out[12] = 0;\n\t out[13] = 0;\n\t out[14] = 0;\n\t out[15] = 1;\n\t return out;\n\t}\n\t\n\t/**\n\t * Creates a matrix from a quaternion rotation and vector translation\n\t * This is equivalent to (but much faster than):\n\t *\n\t * mat4.identity(dest);\n\t * mat4.translate(dest, vec);\n\t * var quatMat = mat4.create();\n\t * quat4.toMat4(quat, quatMat);\n\t * mat4.multiply(dest, quatMat);\n\t *\n\t * @param {mat4} out mat4 receiving operation result\n\t * @param {quat4} q Rotation quaternion\n\t * @param {vec3} v Translation vector\n\t * @returns {mat4} out\n\t */\n\tmat4.fromRotationTranslation = function (out, q, v) {\n\t // Quaternion math\n\t var x = q[0], y = q[1], z = q[2], w = q[3],\n\t x2 = x + x,\n\t y2 = y + y,\n\t z2 = z + z,\n\t\n\t xx = x * x2,\n\t xy = x * y2,\n\t xz = x * z2,\n\t yy = y * y2,\n\t yz = y * z2,\n\t zz = z * z2,\n\t wx = w * x2,\n\t wy = w * y2,\n\t wz = w * z2;\n\t\n\t out[0] = 1 - (yy + zz);\n\t out[1] = xy + wz;\n\t out[2] = xz - wy;\n\t out[3] = 0;\n\t out[4] = xy - wz;\n\t out[5] = 1 - (xx + zz);\n\t out[6] = yz + wx;\n\t out[7] = 0;\n\t out[8] = xz + wy;\n\t out[9] = yz - wx;\n\t out[10] = 1 - (xx + yy);\n\t out[11] = 0;\n\t out[12] = v[0];\n\t out[13] = v[1];\n\t out[14] = v[2];\n\t out[15] = 1;\n\t \n\t return out;\n\t};\n\t\n\t/**\n\t * Creates a matrix from a quaternion rotation, vector translation and vector scale\n\t * This is equivalent to (but much faster than):\n\t *\n\t * mat4.identity(dest);\n\t * mat4.translate(dest, vec);\n\t * var quatMat = mat4.create();\n\t * quat4.toMat4(quat, quatMat);\n\t * mat4.multiply(dest, quatMat);\n\t * mat4.scale(dest, scale)\n\t *\n\t * @param {mat4} out mat4 receiving operation result\n\t * @param {quat4} q Rotation quaternion\n\t * @param {vec3} v Translation vector\n\t * @param {vec3} s Scaling vector\n\t * @returns {mat4} out\n\t */\n\tmat4.fromRotationTranslationScale = function (out, q, v, s) {\n\t // Quaternion math\n\t var x = q[0], y = q[1], z = q[2], w = q[3],\n\t x2 = x + x,\n\t y2 = y + y,\n\t z2 = z + z,\n\t\n\t xx = x * x2,\n\t xy = x * y2,\n\t xz = x * z2,\n\t yy = y * y2,\n\t yz = y * z2,\n\t zz = z * z2,\n\t wx = w * x2,\n\t wy = w * y2,\n\t wz = w * z2,\n\t sx = s[0],\n\t sy = s[1],\n\t sz = s[2];\n\t\n\t out[0] = (1 - (yy + zz)) * sx;\n\t out[1] = (xy + wz) * sx;\n\t out[2] = (xz - wy) * sx;\n\t out[3] = 0;\n\t out[4] = (xy - wz) * sy;\n\t out[5] = (1 - (xx + zz)) * sy;\n\t out[6] = (yz + wx) * sy;\n\t out[7] = 0;\n\t out[8] = (xz + wy) * sz;\n\t out[9] = (yz - wx) * sz;\n\t out[10] = (1 - (xx + yy)) * sz;\n\t out[11] = 0;\n\t out[12] = v[0];\n\t out[13] = v[1];\n\t out[14] = v[2];\n\t out[15] = 1;\n\t \n\t return out;\n\t};\n\t\n\t/**\n\t * Creates a matrix from a quaternion rotation, vector translation and vector scale, rotating and scaling around the given origin\n\t * This is equivalent to (but much faster than):\n\t *\n\t * mat4.identity(dest);\n\t * mat4.translate(dest, vec);\n\t * mat4.translate(dest, origin);\n\t * var quatMat = mat4.create();\n\t * quat4.toMat4(quat, quatMat);\n\t * mat4.multiply(dest, quatMat);\n\t * mat4.scale(dest, scale)\n\t * mat4.translate(dest, negativeOrigin);\n\t *\n\t * @param {mat4} out mat4 receiving operation result\n\t * @param {quat4} q Rotation quaternion\n\t * @param {vec3} v Translation vector\n\t * @param {vec3} s Scaling vector\n\t * @param {vec3} o The origin vector around which to scale and rotate\n\t * @returns {mat4} out\n\t */\n\tmat4.fromRotationTranslationScaleOrigin = function (out, q, v, s, o) {\n\t // Quaternion math\n\t var x = q[0], y = q[1], z = q[2], w = q[3],\n\t x2 = x + x,\n\t y2 = y + y,\n\t z2 = z + z,\n\t\n\t xx = x * x2,\n\t xy = x * y2,\n\t xz = x * z2,\n\t yy = y * y2,\n\t yz = y * z2,\n\t zz = z * z2,\n\t wx = w * x2,\n\t wy = w * y2,\n\t wz = w * z2,\n\t \n\t sx = s[0],\n\t sy = s[1],\n\t sz = s[2],\n\t\n\t ox = o[0],\n\t oy = o[1],\n\t oz = o[2];\n\t \n\t out[0] = (1 - (yy + zz)) * sx;\n\t out[1] = (xy + wz) * sx;\n\t out[2] = (xz - wy) * sx;\n\t out[3] = 0;\n\t out[4] = (xy - wz) * sy;\n\t out[5] = (1 - (xx + zz)) * sy;\n\t out[6] = (yz + wx) * sy;\n\t out[7] = 0;\n\t out[8] = (xz + wy) * sz;\n\t out[9] = (yz - wx) * sz;\n\t out[10] = (1 - (xx + yy)) * sz;\n\t out[11] = 0;\n\t out[12] = v[0] + ox - (out[0] * ox + out[4] * oy + out[8] * oz);\n\t out[13] = v[1] + oy - (out[1] * ox + out[5] * oy + out[9] * oz);\n\t out[14] = v[2] + oz - (out[2] * ox + out[6] * oy + out[10] * oz);\n\t out[15] = 1;\n\t \n\t return out;\n\t};\n\t\n\tmat4.fromQuat = function (out, q) {\n\t var x = q[0], y = q[1], z = q[2], w = q[3],\n\t x2 = x + x,\n\t y2 = y + y,\n\t z2 = z + z,\n\t\n\t xx = x * x2,\n\t yx = y * x2,\n\t yy = y * y2,\n\t zx = z * x2,\n\t zy = z * y2,\n\t zz = z * z2,\n\t wx = w * x2,\n\t wy = w * y2,\n\t wz = w * z2;\n\t\n\t out[0] = 1 - yy - zz;\n\t out[1] = yx + wz;\n\t out[2] = zx - wy;\n\t out[3] = 0;\n\t\n\t out[4] = yx - wz;\n\t out[5] = 1 - xx - zz;\n\t out[6] = zy + wx;\n\t out[7] = 0;\n\t\n\t out[8] = zx + wy;\n\t out[9] = zy - wx;\n\t out[10] = 1 - xx - yy;\n\t out[11] = 0;\n\t\n\t out[12] = 0;\n\t out[13] = 0;\n\t out[14] = 0;\n\t out[15] = 1;\n\t\n\t return out;\n\t};\n\t\n\t/**\n\t * Generates a frustum matrix with the given bounds\n\t *\n\t * @param {mat4} out mat4 frustum matrix will be written into\n\t * @param {Number} left Left bound of the frustum\n\t * @param {Number} right Right bound of the frustum\n\t * @param {Number} bottom Bottom bound of the frustum\n\t * @param {Number} top Top bound of the frustum\n\t * @param {Number} near Near bound of the frustum\n\t * @param {Number} far Far bound of the frustum\n\t * @returns {mat4} out\n\t */\n\tmat4.frustum = function (out, left, right, bottom, top, near, far) {\n\t var rl = 1 / (right - left),\n\t tb = 1 / (top - bottom),\n\t nf = 1 / (near - far);\n\t out[0] = (near * 2) * rl;\n\t out[1] = 0;\n\t out[2] = 0;\n\t out[3] = 0;\n\t out[4] = 0;\n\t out[5] = (near * 2) * tb;\n\t out[6] = 0;\n\t out[7] = 0;\n\t out[8] = (right + left) * rl;\n\t out[9] = (top + bottom) * tb;\n\t out[10] = (far + near) * nf;\n\t out[11] = -1;\n\t out[12] = 0;\n\t out[13] = 0;\n\t out[14] = (far * near * 2) * nf;\n\t out[15] = 0;\n\t return out;\n\t};\n\t\n\t/**\n\t * Generates a perspective projection matrix with the given bounds\n\t *\n\t * @param {mat4} out mat4 frustum matrix will be written into\n\t * @param {number} fovy Vertical field of view in radians\n\t * @param {number} aspect Aspect ratio. typically viewport width/height\n\t * @param {number} near Near bound of the frustum\n\t * @param {number} far Far bound of the frustum\n\t * @returns {mat4} out\n\t */\n\tmat4.perspective = function (out, fovy, aspect, near, far) {\n\t var f = 1.0 / Math.tan(fovy / 2),\n\t nf = 1 / (near - far);\n\t out[0] = f / aspect;\n\t out[1] = 0;\n\t out[2] = 0;\n\t out[3] = 0;\n\t out[4] = 0;\n\t out[5] = f;\n\t out[6] = 0;\n\t out[7] = 0;\n\t out[8] = 0;\n\t out[9] = 0;\n\t out[10] = (far + near) * nf;\n\t out[11] = -1;\n\t out[12] = 0;\n\t out[13] = 0;\n\t out[14] = (2 * far * near) * nf;\n\t out[15] = 0;\n\t return out;\n\t};\n\t\n\t/**\n\t * Generates a perspective projection matrix with the given field of view.\n\t * This is primarily useful for generating projection matrices to be used\n\t * with the still experiemental WebVR API.\n\t *\n\t * @param {mat4} out mat4 frustum matrix will be written into\n\t * @param {number} fov Object containing the following values: upDegrees, downDegrees, leftDegrees, rightDegrees\n\t * @param {number} near Near bound of the frustum\n\t * @param {number} far Far bound of the frustum\n\t * @returns {mat4} out\n\t */\n\tmat4.perspectiveFromFieldOfView = function (out, fov, near, far) {\n\t var upTan = Math.tan(fov.upDegrees * Math.PI/180.0),\n\t downTan = Math.tan(fov.downDegrees * Math.PI/180.0),\n\t leftTan = Math.tan(fov.leftDegrees * Math.PI/180.0),\n\t rightTan = Math.tan(fov.rightDegrees * Math.PI/180.0),\n\t xScale = 2.0 / (leftTan + rightTan),\n\t yScale = 2.0 / (upTan + downTan);\n\t\n\t out[0] = xScale;\n\t out[1] = 0.0;\n\t out[2] = 0.0;\n\t out[3] = 0.0;\n\t out[4] = 0.0;\n\t out[5] = yScale;\n\t out[6] = 0.0;\n\t out[7] = 0.0;\n\t out[8] = -((leftTan - rightTan) * xScale * 0.5);\n\t out[9] = ((upTan - downTan) * yScale * 0.5);\n\t out[10] = far / (near - far);\n\t out[11] = -1.0;\n\t out[12] = 0.0;\n\t out[13] = 0.0;\n\t out[14] = (far * near) / (near - far);\n\t out[15] = 0.0;\n\t return out;\n\t}\n\t\n\t/**\n\t * Generates a orthogonal projection matrix with the given bounds\n\t *\n\t * @param {mat4} out mat4 frustum matrix will be written into\n\t * @param {number} left Left bound of the frustum\n\t * @param {number} right Right bound of the frustum\n\t * @param {number} bottom Bottom bound of the frustum\n\t * @param {number} top Top bound of the frustum\n\t * @param {number} near Near bound of the frustum\n\t * @param {number} far Far bound of the frustum\n\t * @returns {mat4} out\n\t */\n\tmat4.ortho = function (out, left, right, bottom, top, near, far) {\n\t var lr = 1 / (left - right),\n\t bt = 1 / (bottom - top),\n\t nf = 1 / (near - far);\n\t out[0] = -2 * lr;\n\t out[1] = 0;\n\t out[2] = 0;\n\t out[3] = 0;\n\t out[4] = 0;\n\t out[5] = -2 * bt;\n\t out[6] = 0;\n\t out[7] = 0;\n\t out[8] = 0;\n\t out[9] = 0;\n\t out[10] = 2 * nf;\n\t out[11] = 0;\n\t out[12] = (left + right) * lr;\n\t out[13] = (top + bottom) * bt;\n\t out[14] = (far + near) * nf;\n\t out[15] = 1;\n\t return out;\n\t};\n\t\n\t/**\n\t * Generates a look-at matrix with the given eye position, focal point, and up axis\n\t *\n\t * @param {mat4} out mat4 frustum matrix will be written into\n\t * @param {vec3} eye Position of the viewer\n\t * @param {vec3} center Point the viewer is looking at\n\t * @param {vec3} up vec3 pointing up\n\t * @returns {mat4} out\n\t */\n\tmat4.lookAt = function (out, eye, center, up) {\n\t var x0, x1, x2, y0, y1, y2, z0, z1, z2, len,\n\t eyex = eye[0],\n\t eyey = eye[1],\n\t eyez = eye[2],\n\t upx = up[0],\n\t upy = up[1],\n\t upz = up[2],\n\t centerx = center[0],\n\t centery = center[1],\n\t centerz = center[2];\n\t\n\t if (Math.abs(eyex - centerx) < glMatrix.EPSILON &&\n\t Math.abs(eyey - centery) < glMatrix.EPSILON &&\n\t Math.abs(eyez - centerz) < glMatrix.EPSILON) {\n\t return mat4.identity(out);\n\t }\n\t\n\t z0 = eyex - centerx;\n\t z1 = eyey - centery;\n\t z2 = eyez - centerz;\n\t\n\t len = 1 / Math.sqrt(z0 * z0 + z1 * z1 + z2 * z2);\n\t z0 *= len;\n\t z1 *= len;\n\t z2 *= len;\n\t\n\t x0 = upy * z2 - upz * z1;\n\t x1 = upz * z0 - upx * z2;\n\t x2 = upx * z1 - upy * z0;\n\t len = Math.sqrt(x0 * x0 + x1 * x1 + x2 * x2);\n\t if (!len) {\n\t x0 = 0;\n\t x1 = 0;\n\t x2 = 0;\n\t } else {\n\t len = 1 / len;\n\t x0 *= len;\n\t x1 *= len;\n\t x2 *= len;\n\t }\n\t\n\t y0 = z1 * x2 - z2 * x1;\n\t y1 = z2 * x0 - z0 * x2;\n\t y2 = z0 * x1 - z1 * x0;\n\t\n\t len = Math.sqrt(y0 * y0 + y1 * y1 + y2 * y2);\n\t if (!len) {\n\t y0 = 0;\n\t y1 = 0;\n\t y2 = 0;\n\t } else {\n\t len = 1 / len;\n\t y0 *= len;\n\t y1 *= len;\n\t y2 *= len;\n\t }\n\t\n\t out[0] = x0;\n\t out[1] = y0;\n\t out[2] = z0;\n\t out[3] = 0;\n\t out[4] = x1;\n\t out[5] = y1;\n\t out[6] = z1;\n\t out[7] = 0;\n\t out[8] = x2;\n\t out[9] = y2;\n\t out[10] = z2;\n\t out[11] = 0;\n\t out[12] = -(x0 * eyex + x1 * eyey + x2 * eyez);\n\t out[13] = -(y0 * eyex + y1 * eyey + y2 * eyez);\n\t out[14] = -(z0 * eyex + z1 * eyey + z2 * eyez);\n\t out[15] = 1;\n\t\n\t return out;\n\t};\n\t\n\t/**\n\t * Returns a string representation of a mat4\n\t *\n\t * @param {mat4} mat matrix to represent as a string\n\t * @returns {String} string representation of the matrix\n\t */\n\tmat4.str = function (a) {\n\t return 'mat4(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' + a[3] + ', ' +\n\t a[4] + ', ' + a[5] + ', ' + a[6] + ', ' + a[7] + ', ' +\n\t a[8] + ', ' + a[9] + ', ' + a[10] + ', ' + a[11] + ', ' + \n\t a[12] + ', ' + a[13] + ', ' + a[14] + ', ' + a[15] + ')';\n\t};\n\t\n\t/**\n\t * Returns Frobenius norm of a mat4\n\t *\n\t * @param {mat4} a the matrix to calculate Frobenius norm of\n\t * @returns {Number} Frobenius norm\n\t */\n\tmat4.frob = function (a) {\n\t return(Math.sqrt(Math.pow(a[0], 2) + Math.pow(a[1], 2) + Math.pow(a[2], 2) + Math.pow(a[3], 2) + Math.pow(a[4], 2) + Math.pow(a[5], 2) + Math.pow(a[6], 2) + Math.pow(a[7], 2) + Math.pow(a[8], 2) + Math.pow(a[9], 2) + Math.pow(a[10], 2) + Math.pow(a[11], 2) + Math.pow(a[12], 2) + Math.pow(a[13], 2) + Math.pow(a[14], 2) + Math.pow(a[15], 2) ))\n\t};\n\t\n\t\n\tmodule.exports = mat4;\n\n\n/***/ },\n/* 15 */\n/***/ function(module, exports, __webpack_require__) {\n\n\t/* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV.\n\t\n\tPermission is hereby granted, free of charge, to any person obtaining a copy\n\tof this software and associated documentation files (the \"Software\"), to deal\n\tin the Software without restriction, including without limitation the rights\n\tto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n\tcopies of the Software, and to permit persons to whom the Software is\n\tfurnished to do so, subject to the following conditions:\n\t\n\tThe above copyright notice and this permission notice shall be included in\n\tall copies or substantial portions of the Software.\n\t\n\tTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n\tIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n\tFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n\tAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n\tLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n\tOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n\tTHE SOFTWARE. */\n\t\n\tvar glMatrix = __webpack_require__(10);\n\tvar mat3 = __webpack_require__(13);\n\tvar vec3 = __webpack_require__(16);\n\tvar vec4 = __webpack_require__(17);\n\t\n\t/**\n\t * @class Quaternion\n\t * @name quat\n\t */\n\tvar quat = {};\n\t\n\t/**\n\t * Creates a new identity quat\n\t *\n\t * @returns {quat} a new quaternion\n\t */\n\tquat.create = function() {\n\t var out = new glMatrix.ARRAY_TYPE(4);\n\t out[0] = 0;\n\t out[1] = 0;\n\t out[2] = 0;\n\t out[3] = 1;\n\t return out;\n\t};\n\t\n\t/**\n\t * Sets a quaternion to represent the shortest rotation from one\n\t * vector to another.\n\t *\n\t * Both vectors are assumed to be unit length.\n\t *\n\t * @param {quat} out the receiving quaternion.\n\t * @param {vec3} a the initial vector\n\t * @param {vec3} b the destination vector\n\t * @returns {quat} out\n\t */\n\tquat.rotationTo = (function() {\n\t var tmpvec3 = vec3.create();\n\t var xUnitVec3 = vec3.fromValues(1,0,0);\n\t var yUnitVec3 = vec3.fromValues(0,1,0);\n\t\n\t return function(out, a, b) {\n\t var dot = vec3.dot(a, b);\n\t if (dot < -0.999999) {\n\t vec3.cross(tmpvec3, xUnitVec3, a);\n\t if (vec3.length(tmpvec3) < 0.000001)\n\t vec3.cross(tmpvec3, yUnitVec3, a);\n\t vec3.normalize(tmpvec3, tmpvec3);\n\t quat.setAxisAngle(out, tmpvec3, Math.PI);\n\t return out;\n\t } else if (dot > 0.999999) {\n\t out[0] = 0;\n\t out[1] = 0;\n\t out[2] = 0;\n\t out[3] = 1;\n\t return out;\n\t } else {\n\t vec3.cross(tmpvec3, a, b);\n\t out[0] = tmpvec3[0];\n\t out[1] = tmpvec3[1];\n\t out[2] = tmpvec3[2];\n\t out[3] = 1 + dot;\n\t return quat.normalize(out, out);\n\t }\n\t };\n\t})();\n\t\n\t/**\n\t * Sets the specified quaternion with values corresponding to the given\n\t * axes. Each axis is a vec3 and is expected to be unit length and\n\t * perpendicular to all other specified axes.\n\t *\n\t * @param {vec3} view the vector representing the viewing direction\n\t * @param {vec3} right the vector representing the local \"right\" direction\n\t * @param {vec3} up the vector representing the local \"up\" direction\n\t * @returns {quat} out\n\t */\n\tquat.setAxes = (function() {\n\t var matr = mat3.create();\n\t\n\t return function(out, view, right, up) {\n\t matr[0] = right[0];\n\t matr[3] = right[1];\n\t matr[6] = right[2];\n\t\n\t matr[1] = up[0];\n\t matr[4] = up[1];\n\t matr[7] = up[2];\n\t\n\t matr[2] = -view[0];\n\t matr[5] = -view[1];\n\t matr[8] = -view[2];\n\t\n\t return quat.normalize(out, quat.fromMat3(out, matr));\n\t };\n\t})();\n\t\n\t/**\n\t * Creates a new quat initialized with values from an existing quaternion\n\t *\n\t * @param {quat} a quaternion to clone\n\t * @returns {quat} a new quaternion\n\t * @function\n\t */\n\tquat.clone = vec4.clone;\n\t\n\t/**\n\t * Creates a new quat initialized with the given values\n\t *\n\t * @param {Number} x X component\n\t * @param {Number} y Y component\n\t * @param {Number} z Z component\n\t * @param {Number} w W component\n\t * @returns {quat} a new quaternion\n\t * @function\n\t */\n\tquat.fromValues = vec4.fromValues;\n\t\n\t/**\n\t * Copy the values from one quat to another\n\t *\n\t * @param {quat} out the receiving quaternion\n\t * @param {quat} a the source quaternion\n\t * @returns {quat} out\n\t * @function\n\t */\n\tquat.copy = vec4.copy;\n\t\n\t/**\n\t * Set the components of a quat to the given values\n\t *\n\t * @param {quat} out the receiving quaternion\n\t * @param {Number} x X component\n\t * @param {Number} y Y component\n\t * @param {Number} z Z component\n\t * @param {Number} w W component\n\t * @returns {quat} out\n\t * @function\n\t */\n\tquat.set = vec4.set;\n\t\n\t/**\n\t * Set a quat to the identity quaternion\n\t *\n\t * @param {quat} out the receiving quaternion\n\t * @returns {quat} out\n\t */\n\tquat.identity = function(out) {\n\t out[0] = 0;\n\t out[1] = 0;\n\t out[2] = 0;\n\t out[3] = 1;\n\t return out;\n\t};\n\t\n\t/**\n\t * Sets a quat from the given angle and rotation axis,\n\t * then returns it.\n\t *\n\t * @param {quat} out the receiving quaternion\n\t * @param {vec3} axis the axis around which to rotate\n\t * @param {Number} rad the angle in radians\n\t * @returns {quat} out\n\t **/\n\tquat.setAxisAngle = function(out, axis, rad) {\n\t rad = rad * 0.5;\n\t var s = Math.sin(rad);\n\t out[0] = s * axis[0];\n\t out[1] = s * axis[1];\n\t out[2] = s * axis[2];\n\t out[3] = Math.cos(rad);\n\t return out;\n\t};\n\t\n\t/**\n\t * Adds two quat's\n\t *\n\t * @param {quat} out the receiving quaternion\n\t * @param {quat} a the first operand\n\t * @param {quat} b the second operand\n\t * @returns {quat} out\n\t * @function\n\t */\n\tquat.add = vec4.add;\n\t\n\t/**\n\t * Multiplies two quat's\n\t *\n\t * @param {quat} out the receiving quaternion\n\t * @param {quat} a the first operand\n\t * @param {quat} b the second operand\n\t * @returns {quat} out\n\t */\n\tquat.multiply = function(out, a, b) {\n\t var ax = a[0], ay = a[1], az = a[2], aw = a[3],\n\t bx = b[0], by = b[1], bz = b[2], bw = b[3];\n\t\n\t out[0] = ax * bw + aw * bx + ay * bz - az * by;\n\t out[1] = ay * bw + aw * by + az * bx - ax * bz;\n\t out[2] = az * bw + aw * bz + ax * by - ay * bx;\n\t out[3] = aw * bw - ax * bx - ay * by - az * bz;\n\t return out;\n\t};\n\t\n\t/**\n\t * Alias for {@link quat.multiply}\n\t * @function\n\t */\n\tquat.mul = quat.multiply;\n\t\n\t/**\n\t * Scales a quat by a scalar number\n\t *\n\t * @param {quat} out the receiving vector\n\t * @param {quat} a the vector to scale\n\t * @param {Number} b amount to scale the vector by\n\t * @returns {quat} out\n\t * @function\n\t */\n\tquat.scale = vec4.scale;\n\t\n\t/**\n\t * Rotates a quaternion by the given angle about the X axis\n\t *\n\t * @param {quat} out quat receiving operation result\n\t * @param {quat} a quat to rotate\n\t * @param {number} rad angle (in radians) to rotate\n\t * @returns {quat} out\n\t */\n\tquat.rotateX = function (out, a, rad) {\n\t rad *= 0.5; \n\t\n\t var ax = a[0], ay = a[1], az = a[2], aw = a[3],\n\t bx = Math.sin(rad), bw = Math.cos(rad);\n\t\n\t out[0] = ax * bw + aw * bx;\n\t out[1] = ay * bw + az * bx;\n\t out[2] = az * bw - ay * bx;\n\t out[3] = aw * bw - ax * bx;\n\t return out;\n\t};\n\t\n\t/**\n\t * Rotates a quaternion by the given angle about the Y axis\n\t *\n\t * @param {quat} out quat receiving operation result\n\t * @param {quat} a quat to rotate\n\t * @param {number} rad angle (in radians) to rotate\n\t * @returns {quat} out\n\t */\n\tquat.rotateY = function (out, a, rad) {\n\t rad *= 0.5; \n\t\n\t var ax = a[0], ay = a[1], az = a[2], aw = a[3],\n\t by = Math.sin(rad), bw = Math.cos(rad);\n\t\n\t out[0] = ax * bw - az * by;\n\t out[1] = ay * bw + aw * by;\n\t out[2] = az * bw + ax * by;\n\t out[3] = aw * bw - ay * by;\n\t return out;\n\t};\n\t\n\t/**\n\t * Rotates a quaternion by the given angle about the Z axis\n\t *\n\t * @param {quat} out quat receiving operation result\n\t * @param {quat} a quat to rotate\n\t * @param {number} rad angle (in radians) to rotate\n\t * @returns {quat} out\n\t */\n\tquat.rotateZ = function (out, a, rad) {\n\t rad *= 0.5; \n\t\n\t var ax = a[0], ay = a[1], az = a[2], aw = a[3],\n\t bz = Math.sin(rad), bw = Math.cos(rad);\n\t\n\t out[0] = ax * bw + ay * bz;\n\t out[1] = ay * bw - ax * bz;\n\t out[2] = az * bw + aw * bz;\n\t out[3] = aw * bw - az * bz;\n\t return out;\n\t};\n\t\n\t/**\n\t * Calculates the W component of a quat from the X, Y, and Z components.\n\t * Assumes that quaternion is 1 unit in length.\n\t * Any existing W component will be ignored.\n\t *\n\t * @param {quat} out the receiving quaternion\n\t * @param {quat} a quat to calculate W component of\n\t * @returns {quat} out\n\t */\n\tquat.calculateW = function (out, a) {\n\t var x = a[0], y = a[1], z = a[2];\n\t\n\t out[0] = x;\n\t out[1] = y;\n\t out[2] = z;\n\t out[3] = Math.sqrt(Math.abs(1.0 - x * x - y * y - z * z));\n\t return out;\n\t};\n\t\n\t/**\n\t * Calculates the dot product of two quat's\n\t *\n\t * @param {quat} a the first operand\n\t * @param {quat} b the second operand\n\t * @returns {Number} dot product of a and b\n\t * @function\n\t */\n\tquat.dot = vec4.dot;\n\t\n\t/**\n\t * Performs a linear interpolation between two quat's\n\t *\n\t * @param {quat} out the receiving quaternion\n\t * @param {quat} a the first operand\n\t * @param {quat} b the second operand\n\t * @param {Number} t interpolation amount between the two inputs\n\t * @returns {quat} out\n\t * @function\n\t */\n\tquat.lerp = vec4.lerp;\n\t\n\t/**\n\t * Performs a spherical linear interpolation between two quat\n\t *\n\t * @param {quat} out the receiving quaternion\n\t * @param {quat} a the first operand\n\t * @param {quat} b the second operand\n\t * @param {Number} t interpolation amount between the two inputs\n\t * @returns {quat} out\n\t */\n\tquat.slerp = function (out, a, b, t) {\n\t // benchmarks:\n\t // http://jsperf.com/quaternion-slerp-implementations\n\t\n\t var ax = a[0], ay = a[1], az = a[2], aw = a[3],\n\t bx = b[0], by = b[1], bz = b[2], bw = b[3];\n\t\n\t var omega, cosom, sinom, scale0, scale1;\n\t\n\t // calc cosine\n\t cosom = ax * bx + ay * by + az * bz + aw * bw;\n\t // adjust signs (if necessary)\n\t if ( cosom < 0.0 ) {\n\t cosom = -cosom;\n\t bx = - bx;\n\t by = - by;\n\t bz = - bz;\n\t bw = - bw;\n\t }\n\t // calculate coefficients\n\t if ( (1.0 - cosom) > 0.000001 ) {\n\t // standard case (slerp)\n\t omega = Math.acos(cosom);\n\t sinom = Math.sin(omega);\n\t scale0 = Math.sin((1.0 - t) * omega) / sinom;\n\t scale1 = Math.sin(t * omega) / sinom;\n\t } else { \n\t // \"from\" and \"to\" quaternions are very close \n\t // ... so we can do a linear interpolation\n\t scale0 = 1.0 - t;\n\t scale1 = t;\n\t }\n\t // calculate final values\n\t out[0] = scale0 * ax + scale1 * bx;\n\t out[1] = scale0 * ay + scale1 * by;\n\t out[2] = scale0 * az + scale1 * bz;\n\t out[3] = scale0 * aw + scale1 * bw;\n\t \n\t return out;\n\t};\n\t\n\t/**\n\t * Performs a spherical linear interpolation with two control points\n\t *\n\t * @param {quat} out the receiving quaternion\n\t * @param {quat} a the first operand\n\t * @param {quat} b the second operand\n\t * @param {quat} c the third operand\n\t * @param {quat} d the fourth operand\n\t * @param {Number} t interpolation amount\n\t * @returns {quat} out\n\t */\n\tquat.sqlerp = (function () {\n\t var temp1 = quat.create();\n\t var temp2 = quat.create();\n\t \n\t return function (out, a, b, c, d, t) {\n\t quat.slerp(temp1, a, d, t);\n\t quat.slerp(temp2, b, c, t);\n\t quat.slerp(out, temp1, temp2, 2 * t * (1 - t));\n\t \n\t return out;\n\t };\n\t}());\n\t\n\t/**\n\t * Calculates the inverse of a quat\n\t *\n\t * @param {quat} out the receiving quaternion\n\t * @param {quat} a quat to calculate inverse of\n\t * @returns {quat} out\n\t */\n\tquat.invert = function(out, a) {\n\t var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3],\n\t dot = a0*a0 + a1*a1 + a2*a2 + a3*a3,\n\t invDot = dot ? 1.0/dot : 0;\n\t \n\t // TODO: Would be faster to return [0,0,0,0] immediately if dot == 0\n\t\n\t out[0] = -a0*invDot;\n\t out[1] = -a1*invDot;\n\t out[2] = -a2*invDot;\n\t out[3] = a3*invDot;\n\t return out;\n\t};\n\t\n\t/**\n\t * Calculates the conjugate of a quat\n\t * If the quaternion is normalized, this function is faster than quat.inverse and produces the same result.\n\t *\n\t * @param {quat} out the receiving quaternion\n\t * @param {quat} a quat to calculate conjugate of\n\t * @returns {quat} out\n\t */\n\tquat.conjugate = function (out, a) {\n\t out[0] = -a[0];\n\t out[1] = -a[1];\n\t out[2] = -a[2];\n\t out[3] = a[3];\n\t return out;\n\t};\n\t\n\t/**\n\t * Calculates the length of a quat\n\t *\n\t * @param {quat} a vector to calculate length of\n\t * @returns {Number} length of a\n\t * @function\n\t */\n\tquat.length = vec4.length;\n\t\n\t/**\n\t * Alias for {@link quat.length}\n\t * @function\n\t */\n\tquat.len = quat.length;\n\t\n\t/**\n\t * Calculates the squared length of a quat\n\t *\n\t * @param {quat} a vector to calculate squared length of\n\t * @returns {Number} squared length of a\n\t * @function\n\t */\n\tquat.squaredLength = vec4.squaredLength;\n\t\n\t/**\n\t * Alias for {@link quat.squaredLength}\n\t * @function\n\t */\n\tquat.sqrLen = quat.squaredLength;\n\t\n\t/**\n\t * Normalize a quat\n\t *\n\t * @param {quat} out the receiving quaternion\n\t * @param {quat} a quaternion to normalize\n\t * @returns {quat} out\n\t * @function\n\t */\n\tquat.normalize = vec4.normalize;\n\t\n\t/**\n\t * Creates a quaternion from the given 3x3 rotation matrix.\n\t *\n\t * NOTE: The resultant quaternion is not normalized, so you should be sure\n\t * to renormalize the quaternion yourself where necessary.\n\t *\n\t * @param {quat} out the receiving quaternion\n\t * @param {mat3} m rotation matrix\n\t * @returns {quat} out\n\t * @function\n\t */\n\tquat.fromMat3 = function(out, m) {\n\t // Algorithm in Ken Shoemake's article in 1987 SIGGRAPH course notes\n\t // article \"Quaternion Calculus and Fast Animation\".\n\t var fTrace = m[0] + m[4] + m[8];\n\t var fRoot;\n\t\n\t if ( fTrace > 0.0 ) {\n\t // |w| > 1/2, may as well choose w > 1/2\n\t fRoot = Math.sqrt(fTrace + 1.0); // 2w\n\t out[3] = 0.5 * fRoot;\n\t fRoot = 0.5/fRoot; // 1/(4w)\n\t out[0] = (m[5]-m[7])*fRoot;\n\t out[1] = (m[6]-m[2])*fRoot;\n\t out[2] = (m[1]-m[3])*fRoot;\n\t } else {\n\t // |w| <= 1/2\n\t var i = 0;\n\t if ( m[4] > m[0] )\n\t i = 1;\n\t if ( m[8] > m[i*3+i] )\n\t i = 2;\n\t var j = (i+1)%3;\n\t var k = (i+2)%3;\n\t \n\t fRoot = Math.sqrt(m[i*3+i]-m[j*3+j]-m[k*3+k] + 1.0);\n\t out[i] = 0.5 * fRoot;\n\t fRoot = 0.5 / fRoot;\n\t out[3] = (m[j*3+k] - m[k*3+j]) * fRoot;\n\t out[j] = (m[j*3+i] + m[i*3+j]) * fRoot;\n\t out[k] = (m[k*3+i] + m[i*3+k]) * fRoot;\n\t }\n\t \n\t return out;\n\t};\n\t\n\t/**\n\t * Returns a string representation of a quatenion\n\t *\n\t * @param {quat} vec vector to represent as a string\n\t * @returns {String} string representation of the vector\n\t */\n\tquat.str = function (a) {\n\t return 'quat(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' + a[3] + ')';\n\t};\n\t\n\tmodule.exports = quat;\n\n\n/***/ },\n/* 16 */\n/***/ function(module, exports, __webpack_require__) {\n\n\t/* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV.\n\t\n\tPermission is hereby granted, free of charge, to any person obtaining a copy\n\tof this software and associated documentation files (the \"Software\"), to deal\n\tin the Software without restriction, including without limitation the rights\n\tto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n\tcopies of the Software, and to permit persons to whom the Software is\n\tfurnished to do so, subject to the following conditions:\n\t\n\tThe above copyright notice and this permission notice shall be included in\n\tall copies or substantial portions of the Software.\n\t\n\tTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n\tIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n\tFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n\tAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n\tLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n\tOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n\tTHE SOFTWARE. */\n\t\n\tvar glMatrix = __webpack_require__(10);\n\t\n\t/**\n\t * @class 3 Dimensional Vector\n\t * @name vec3\n\t */\n\tvar vec3 = {};\n\t\n\t/**\n\t * Creates a new, empty vec3\n\t *\n\t * @returns {vec3} a new 3D vector\n\t */\n\tvec3.create = function() {\n\t var out = new glMatrix.ARRAY_TYPE(3);\n\t out[0] = 0;\n\t out[1] = 0;\n\t out[2] = 0;\n\t return out;\n\t};\n\t\n\t/**\n\t * Creates a new vec3 initialized with values from an existing vector\n\t *\n\t * @param {vec3} a vector to clone\n\t * @returns {vec3} a new 3D vector\n\t */\n\tvec3.clone = function(a) {\n\t var out = new glMatrix.ARRAY_TYPE(3);\n\t out[0] = a[0];\n\t out[1] = a[1];\n\t out[2] = a[2];\n\t return out;\n\t};\n\t\n\t/**\n\t * Creates a new vec3 initialized with the given values\n\t *\n\t * @param {Number} x X component\n\t * @param {Number} y Y component\n\t * @param {Number} z Z component\n\t * @returns {vec3} a new 3D vector\n\t */\n\tvec3.fromValues = function(x, y, z) {\n\t var out = new glMatrix.ARRAY_TYPE(3);\n\t out[0] = x;\n\t out[1] = y;\n\t out[2] = z;\n\t return out;\n\t};\n\t\n\t/**\n\t * Copy the values from one vec3 to another\n\t *\n\t * @param {vec3} out the receiving vector\n\t * @param {vec3} a the source vector\n\t * @returns {vec3} out\n\t */\n\tvec3.copy = function(out, a) {\n\t out[0] = a[0];\n\t out[1] = a[1];\n\t out[2] = a[2];\n\t return out;\n\t};\n\t\n\t/**\n\t * Set the components of a vec3 to the given values\n\t *\n\t * @param {vec3} out the receiving vector\n\t * @param {Number} x X component\n\t * @param {Number} y Y component\n\t * @param {Number} z Z component\n\t * @returns {vec3} out\n\t */\n\tvec3.set = function(out, x, y, z) {\n\t out[0] = x;\n\t out[1] = y;\n\t out[2] = z;\n\t return out;\n\t};\n\t\n\t/**\n\t * Adds two vec3's\n\t *\n\t * @param {vec3} out the receiving vector\n\t * @param {vec3} a the first operand\n\t * @param {vec3} b the second operand\n\t * @returns {vec3} out\n\t */\n\tvec3.add = function(out, a, b) {\n\t out[0] = a[0] + b[0];\n\t out[1] = a[1] + b[1];\n\t out[2] = a[2] + b[2];\n\t return out;\n\t};\n\t\n\t/**\n\t * Subtracts vector b from vector a\n\t *\n\t * @param {vec3} out the receiving vector\n\t * @param {vec3} a the first operand\n\t * @param {vec3} b the second operand\n\t * @returns {vec3} out\n\t */\n\tvec3.subtract = function(out, a, b) {\n\t out[0] = a[0] - b[0];\n\t out[1] = a[1] - b[1];\n\t out[2] = a[2] - b[2];\n\t return out;\n\t};\n\t\n\t/**\n\t * Alias for {@link vec3.subtract}\n\t * @function\n\t */\n\tvec3.sub = vec3.subtract;\n\t\n\t/**\n\t * Multiplies two vec3's\n\t *\n\t * @param {vec3} out the receiving vector\n\t * @param {vec3} a the first operand\n\t * @param {vec3} b the second operand\n\t * @returns {vec3} out\n\t */\n\tvec3.multiply = function(out, a, b) {\n\t out[0] = a[0] * b[0];\n\t out[1] = a[1] * b[1];\n\t out[2] = a[2] * b[2];\n\t return out;\n\t};\n\t\n\t/**\n\t * Alias for {@link vec3.multiply}\n\t * @function\n\t */\n\tvec3.mul = vec3.multiply;\n\t\n\t/**\n\t * Divides two vec3's\n\t *\n\t * @param {vec3} out the receiving vector\n\t * @param {vec3} a the first operand\n\t * @param {vec3} b the second operand\n\t * @returns {vec3} out\n\t */\n\tvec3.divide = function(out, a, b) {\n\t out[0] = a[0] / b[0];\n\t out[1] = a[1] / b[1];\n\t out[2] = a[2] / b[2];\n\t return out;\n\t};\n\t\n\t/**\n\t * Alias for {@link vec3.divide}\n\t * @function\n\t */\n\tvec3.div = vec3.divide;\n\t\n\t/**\n\t * Returns the minimum of two vec3's\n\t *\n\t * @param {vec3} out the receiving vector\n\t * @param {vec3} a the first operand\n\t * @param {vec3} b the second operand\n\t * @returns {vec3} out\n\t */\n\tvec3.min = function(out, a, b) {\n\t out[0] = Math.min(a[0], b[0]);\n\t out[1] = Math.min(a[1], b[1]);\n\t out[2] = Math.min(a[2], b[2]);\n\t return out;\n\t};\n\t\n\t/**\n\t * Returns the maximum of two vec3's\n\t *\n\t * @param {vec3} out the receiving vector\n\t * @param {vec3} a the first operand\n\t * @param {vec3} b the second operand\n\t * @returns {vec3} out\n\t */\n\tvec3.max = function(out, a, b) {\n\t out[0] = Math.max(a[0], b[0]);\n\t out[1] = Math.max(a[1], b[1]);\n\t out[2] = Math.max(a[2], b[2]);\n\t return out;\n\t};\n\t\n\t/**\n\t * Scales a vec3 by a scalar number\n\t *\n\t * @param {vec3} out the receiving vector\n\t * @param {vec3} a the vector to scale\n\t * @param {Number} b amount to scale the vector by\n\t * @returns {vec3} out\n\t */\n\tvec3.scale = function(out, a, b) {\n\t out[0] = a[0] * b;\n\t out[1] = a[1] * b;\n\t out[2] = a[2] * b;\n\t return out;\n\t};\n\t\n\t/**\n\t * Adds two vec3's after scaling the second operand by a scalar value\n\t *\n\t * @param {vec3} out the receiving vector\n\t * @param {vec3} a the first operand\n\t * @param {vec3} b the second operand\n\t * @param {Number} scale the amount to scale b by before adding\n\t * @returns {vec3} out\n\t */\n\tvec3.scaleAndAdd = function(out, a, b, scale) {\n\t out[0] = a[0] + (b[0] * scale);\n\t out[1] = a[1] + (b[1] * scale);\n\t out[2] = a[2] + (b[2] * scale);\n\t return out;\n\t};\n\t\n\t/**\n\t * Calculates the euclidian distance between two vec3's\n\t *\n\t * @param {vec3} a the first operand\n\t * @param {vec3} b the second operand\n\t * @returns {Number} distance between a and b\n\t */\n\tvec3.distance = function(a, b) {\n\t var x = b[0] - a[0],\n\t y = b[1] - a[1],\n\t z = b[2] - a[2];\n\t return Math.sqrt(x*x + y*y + z*z);\n\t};\n\t\n\t/**\n\t * Alias for {@link vec3.distance}\n\t * @function\n\t */\n\tvec3.dist = vec3.distance;\n\t\n\t/**\n\t * Calculates the squared euclidian distance between two vec3's\n\t *\n\t * @param {vec3} a the first operand\n\t * @param {vec3} b the second operand\n\t * @returns {Number} squared distance between a and b\n\t */\n\tvec3.squaredDistance = function(a, b) {\n\t var x = b[0] - a[0],\n\t y = b[1] - a[1],\n\t z = b[2] - a[2];\n\t return x*x + y*y + z*z;\n\t};\n\t\n\t/**\n\t * Alias for {@link vec3.squaredDistance}\n\t * @function\n\t */\n\tvec3.sqrDist = vec3.squaredDistance;\n\t\n\t/**\n\t * Calculates the length of a vec3\n\t *\n\t * @param {vec3} a vector to calculate length of\n\t * @returns {Number} length of a\n\t */\n\tvec3.length = function (a) {\n\t var x = a[0],\n\t y = a[1],\n\t z = a[2];\n\t return Math.sqrt(x*x + y*y + z*z);\n\t};\n\t\n\t/**\n\t * Alias for {@link vec3.length}\n\t * @function\n\t */\n\tvec3.len = vec3.length;\n\t\n\t/**\n\t * Calculates the squared length of a vec3\n\t *\n\t * @param {vec3} a vector to calculate squared length of\n\t * @returns {Number} squared length of a\n\t */\n\tvec3.squaredLength = function (a) {\n\t var x = a[0],\n\t y = a[1],\n\t z = a[2];\n\t return x*x + y*y + z*z;\n\t};\n\t\n\t/**\n\t * Alias for {@link vec3.squaredLength}\n\t * @function\n\t */\n\tvec3.sqrLen = vec3.squaredLength;\n\t\n\t/**\n\t * Negates the components of a vec3\n\t *\n\t * @param {vec3} out the receiving vector\n\t * @param {vec3} a vector to negate\n\t * @returns {vec3} out\n\t */\n\tvec3.negate = function(out, a) {\n\t out[0] = -a[0];\n\t out[1] = -a[1];\n\t out[2] = -a[2];\n\t return out;\n\t};\n\t\n\t/**\n\t * Returns the inverse of the components of a vec3\n\t *\n\t * @param {vec3} out the receiving vector\n\t * @param {vec3} a vector to invert\n\t * @returns {vec3} out\n\t */\n\tvec3.inverse = function(out, a) {\n\t out[0] = 1.0 / a[0];\n\t out[1] = 1.0 / a[1];\n\t out[2] = 1.0 / a[2];\n\t return out;\n\t};\n\t\n\t/**\n\t * Normalize a vec3\n\t *\n\t * @param {vec3} out the receiving vector\n\t * @param {vec3} a vector to normalize\n\t * @returns {vec3} out\n\t */\n\tvec3.normalize = function(out, a) {\n\t var x = a[0],\n\t y = a[1],\n\t z = a[2];\n\t var len = x*x + y*y + z*z;\n\t if (len > 0) {\n\t //TODO: evaluate use of glm_invsqrt here?\n\t len = 1 / Math.sqrt(len);\n\t out[0] = a[0] * len;\n\t out[1] = a[1] * len;\n\t out[2] = a[2] * len;\n\t }\n\t return out;\n\t};\n\t\n\t/**\n\t * Calculates the dot product of two vec3's\n\t *\n\t * @param {vec3} a the first operand\n\t * @param {vec3} b the second operand\n\t * @returns {Number} dot product of a and b\n\t */\n\tvec3.dot = function (a, b) {\n\t return a[0] * b[0] + a[1] * b[1] + a[2] * b[2];\n\t};\n\t\n\t/**\n\t * Computes the cross product of two vec3's\n\t *\n\t * @param {vec3} out the receiving vector\n\t * @param {vec3} a the first operand\n\t * @param {vec3} b the second operand\n\t * @returns {vec3} out\n\t */\n\tvec3.cross = function(out, a, b) {\n\t var ax = a[0], ay = a[1], az = a[2],\n\t bx = b[0], by = b[1], bz = b[2];\n\t\n\t out[0] = ay * bz - az * by;\n\t out[1] = az * bx - ax * bz;\n\t out[2] = ax * by - ay * bx;\n\t return out;\n\t};\n\t\n\t/**\n\t * Performs a linear interpolation between two vec3's\n\t *\n\t * @param {vec3} out the receiving vector\n\t * @param {vec3} a the first operand\n\t * @param {vec3} b the second operand\n\t * @param {Number} t interpolation amount between the two inputs\n\t * @returns {vec3} out\n\t */\n\tvec3.lerp = function (out, a, b, t) {\n\t var ax = a[0],\n\t ay = a[1],\n\t az = a[2];\n\t out[0] = ax + t * (b[0] - ax);\n\t out[1] = ay + t * (b[1] - ay);\n\t out[2] = az + t * (b[2] - az);\n\t return out;\n\t};\n\t\n\t/**\n\t * Performs a hermite interpolation with two control points\n\t *\n\t * @param {vec3} out the receiving vector\n\t * @param {vec3} a the first operand\n\t * @param {vec3} b the second operand\n\t * @param {vec3} c the third operand\n\t * @param {vec3} d the fourth operand\n\t * @param {Number} t interpolation amount between the two inputs\n\t * @returns {vec3} out\n\t */\n\tvec3.hermite = function (out, a, b, c, d, t) {\n\t var factorTimes2 = t * t,\n\t factor1 = factorTimes2 * (2 * t - 3) + 1,\n\t factor2 = factorTimes2 * (t - 2) + t,\n\t factor3 = factorTimes2 * (t - 1),\n\t factor4 = factorTimes2 * (3 - 2 * t);\n\t \n\t out[0] = a[0] * factor1 + b[0] * factor2 + c[0] * factor3 + d[0] * factor4;\n\t out[1] = a[1] * factor1 + b[1] * factor2 + c[1] * factor3 + d[1] * factor4;\n\t out[2] = a[2] * factor1 + b[2] * factor2 + c[2] * factor3 + d[2] * factor4;\n\t \n\t return out;\n\t};\n\t\n\t/**\n\t * Performs a bezier interpolation with two control points\n\t *\n\t * @param {vec3} out the receiving vector\n\t * @param {vec3} a the first operand\n\t * @param {vec3} b the second operand\n\t * @param {vec3} c the third operand\n\t * @param {vec3} d the fourth operand\n\t * @param {Number} t interpolation amount between the two inputs\n\t * @returns {vec3} out\n\t */\n\tvec3.bezier = function (out, a, b, c, d, t) {\n\t var inverseFactor = 1 - t,\n\t inverseFactorTimesTwo = inverseFactor * inverseFactor,\n\t factorTimes2 = t * t,\n\t factor1 = inverseFactorTimesTwo * inverseFactor,\n\t factor2 = 3 * t * inverseFactorTimesTwo,\n\t factor3 = 3 * factorTimes2 * inverseFactor,\n\t factor4 = factorTimes2 * t;\n\t \n\t out[0] = a[0] * factor1 + b[0] * factor2 + c[0] * factor3 + d[0] * factor4;\n\t out[1] = a[1] * factor1 + b[1] * factor2 + c[1] * factor3 + d[1] * factor4;\n\t out[2] = a[2] * factor1 + b[2] * factor2 + c[2] * factor3 + d[2] * factor4;\n\t \n\t return out;\n\t};\n\t\n\t/**\n\t * Generates a random vector with the given scale\n\t *\n\t * @param {vec3} out the receiving vector\n\t * @param {Number} [scale] Length of the resulting vector. If ommitted, a unit vector will be returned\n\t * @returns {vec3} out\n\t */\n\tvec3.random = function (out, scale) {\n\t scale = scale || 1.0;\n\t\n\t var r = glMatrix.RANDOM() * 2.0 * Math.PI;\n\t var z = (glMatrix.RANDOM() * 2.0) - 1.0;\n\t var zScale = Math.sqrt(1.0-z*z) * scale;\n\t\n\t out[0] = Math.cos(r) * zScale;\n\t out[1] = Math.sin(r) * zScale;\n\t out[2] = z * scale;\n\t return out;\n\t};\n\t\n\t/**\n\t * Transforms the vec3 with a mat4.\n\t * 4th vector component is implicitly '1'\n\t *\n\t * @param {vec3} out the receiving vector\n\t * @param {vec3} a the vector to transform\n\t * @param {mat4} m matrix to transform with\n\t * @returns {vec3} out\n\t */\n\tvec3.transformMat4 = function(out, a, m) {\n\t var x = a[0], y = a[1], z = a[2],\n\t w = m[3] * x + m[7] * y + m[11] * z + m[15];\n\t w = w || 1.0;\n\t out[0] = (m[0] * x + m[4] * y + m[8] * z + m[12]) / w;\n\t out[1] = (m[1] * x + m[5] * y + m[9] * z + m[13]) / w;\n\t out[2] = (m[2] * x + m[6] * y + m[10] * z + m[14]) / w;\n\t return out;\n\t};\n\t\n\t/**\n\t * Transforms the vec3 with a mat3.\n\t *\n\t * @param {vec3} out the receiving vector\n\t * @param {vec3} a the vector to transform\n\t * @param {mat4} m the 3x3 matrix to transform with\n\t * @returns {vec3} out\n\t */\n\tvec3.transformMat3 = function(out, a, m) {\n\t var x = a[0], y = a[1], z = a[2];\n\t out[0] = x * m[0] + y * m[3] + z * m[6];\n\t out[1] = x * m[1] + y * m[4] + z * m[7];\n\t out[2] = x * m[2] + y * m[5] + z * m[8];\n\t return out;\n\t};\n\t\n\t/**\n\t * Transforms the vec3 with a quat\n\t *\n\t * @param {vec3} out the receiving vector\n\t * @param {vec3} a the vector to transform\n\t * @param {quat} q quaternion to transform with\n\t * @returns {vec3} out\n\t */\n\tvec3.transformQuat = function(out, a, q) {\n\t // benchmarks: http://jsperf.com/quaternion-transform-vec3-implementations\n\t\n\t var x = a[0], y = a[1], z = a[2],\n\t qx = q[0], qy = q[1], qz = q[2], qw = q[3],\n\t\n\t // calculate quat * vec\n\t ix = qw * x + qy * z - qz * y,\n\t iy = qw * y + qz * x - qx * z,\n\t iz = qw * z + qx * y - qy * x,\n\t iw = -qx * x - qy * y - qz * z;\n\t\n\t // calculate result * inverse quat\n\t out[0] = ix * qw + iw * -qx + iy * -qz - iz * -qy;\n\t out[1] = iy * qw + iw * -qy + iz * -qx - ix * -qz;\n\t out[2] = iz * qw + iw * -qz + ix * -qy - iy * -qx;\n\t return out;\n\t};\n\t\n\t/**\n\t * Rotate a 3D vector around the x-axis\n\t * @param {vec3} out The receiving vec3\n\t * @param {vec3} a The vec3 point to rotate\n\t * @param {vec3} b The origin of the rotation\n\t * @param {Number} c The angle of rotation\n\t * @returns {vec3} out\n\t */\n\tvec3.rotateX = function(out, a, b, c){\n\t var p = [], r=[];\n\t\t //Translate point to the origin\n\t\t p[0] = a[0] - b[0];\n\t\t p[1] = a[1] - b[1];\n\t \tp[2] = a[2] - b[2];\n\t\n\t\t //perform rotation\n\t\t r[0] = p[0];\n\t\t r[1] = p[1]*Math.cos(c) - p[2]*Math.sin(c);\n\t\t r[2] = p[1]*Math.sin(c) + p[2]*Math.cos(c);\n\t\n\t\t //translate to correct position\n\t\t out[0] = r[0] + b[0];\n\t\t out[1] = r[1] + b[1];\n\t\t out[2] = r[2] + b[2];\n\t\n\t \treturn out;\n\t};\n\t\n\t/**\n\t * Rotate a 3D vector around the y-axis\n\t * @param {vec3} out The receiving vec3\n\t * @param {vec3} a The vec3 point to rotate\n\t * @param {vec3} b The origin of the rotation\n\t * @param {Number} c The angle of rotation\n\t * @returns {vec3} out\n\t */\n\tvec3.rotateY = function(out, a, b, c){\n\t \tvar p = [], r=[];\n\t \t//Translate point to the origin\n\t \tp[0] = a[0] - b[0];\n\t \tp[1] = a[1] - b[1];\n\t \tp[2] = a[2] - b[2];\n\t \n\t \t//perform rotation\n\t \tr[0] = p[2]*Math.sin(c) + p[0]*Math.cos(c);\n\t \tr[1] = p[1];\n\t \tr[2] = p[2]*Math.cos(c) - p[0]*Math.sin(c);\n\t \n\t \t//translate to correct position\n\t \tout[0] = r[0] + b[0];\n\t \tout[1] = r[1] + b[1];\n\t \tout[2] = r[2] + b[2];\n\t \n\t \treturn out;\n\t};\n\t\n\t/**\n\t * Rotate a 3D vector around the z-axis\n\t * @param {vec3} out The receiving vec3\n\t * @param {vec3} a The vec3 point to rotate\n\t * @param {vec3} b The origin of the rotation\n\t * @param {Number} c The angle of rotation\n\t * @returns {vec3} out\n\t */\n\tvec3.rotateZ = function(out, a, b, c){\n\t \tvar p = [], r=[];\n\t \t//Translate point to the origin\n\t \tp[0] = a[0] - b[0];\n\t \tp[1] = a[1] - b[1];\n\t \tp[2] = a[2] - b[2];\n\t \n\t \t//perform rotation\n\t \tr[0] = p[0]*Math.cos(c) - p[1]*Math.sin(c);\n\t \tr[1] = p[0]*Math.sin(c) + p[1]*Math.cos(c);\n\t \tr[2] = p[2];\n\t \n\t \t//translate to correct position\n\t \tout[0] = r[0] + b[0];\n\t \tout[1] = r[1] + b[1];\n\t \tout[2] = r[2] + b[2];\n\t \n\t \treturn out;\n\t};\n\t\n\t/**\n\t * Perform some operation over an array of vec3s.\n\t *\n\t * @param {Array} a the array of vectors to iterate over\n\t * @param {Number} stride Number of elements between the start of each vec3. If 0 assumes tightly packed\n\t * @param {Number} offset Number of elements to skip at the beginning of the array\n\t * @param {Number} count Number of vec3s to iterate over. If 0 iterates over entire array\n\t * @param {Function} fn Function to call for each vector in the array\n\t * @param {Object} [arg] additional argument to pass to fn\n\t * @returns {Array} a\n\t * @function\n\t */\n\tvec3.forEach = (function() {\n\t var vec = vec3.create();\n\t\n\t return function(a, stride, offset, count, fn, arg) {\n\t var i, l;\n\t if(!stride) {\n\t stride = 3;\n\t }\n\t\n\t if(!offset) {\n\t offset = 0;\n\t }\n\t \n\t if(count) {\n\t l = Math.min((count * stride) + offset, a.length);\n\t } else {\n\t l = a.length;\n\t }\n\t\n\t for(i = offset; i < l; i += stride) {\n\t vec[0] = a[i]; vec[1] = a[i+1]; vec[2] = a[i+2];\n\t fn(vec, vec, arg);\n\t a[i] = vec[0]; a[i+1] = vec[1]; a[i+2] = vec[2];\n\t }\n\t \n\t return a;\n\t };\n\t})();\n\t\n\t/**\n\t * Get the angle between two 3D vectors\n\t * @param {vec3} a The first operand\n\t * @param {vec3} b The second operand\n\t * @returns {Number} The angle in radians\n\t */\n\tvec3.angle = function(a, b) {\n\t \n\t var tempA = vec3.fromValues(a[0], a[1], a[2]);\n\t var tempB = vec3.fromValues(b[0], b[1], b[2]);\n\t \n\t vec3.normalize(tempA, tempA);\n\t vec3.normalize(tempB, tempB);\n\t \n\t var cosine = vec3.dot(tempA, tempB);\n\t\n\t if(cosine > 1.0){\n\t return 0;\n\t } else {\n\t return Math.acos(cosine);\n\t } \n\t};\n\t\n\t/**\n\t * Returns a string representation of a vector\n\t *\n\t * @param {vec3} vec vector to represent as a string\n\t * @returns {String} string representation of the vector\n\t */\n\tvec3.str = function (a) {\n\t return 'vec3(' + a[0] + ', ' + a[1] + ', ' + a[2] + ')';\n\t};\n\t\n\tmodule.exports = vec3;\n\n\n/***/ },\n/* 17 */\n/***/ function(module, exports, __webpack_require__) {\n\n\t/* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV.\n\t\n\tPermission is hereby granted, free of charge, to any person obtaining a copy\n\tof this software and associated documentation files (the \"Software\"), to deal\n\tin the Software without restriction, including without limitation the rights\n\tto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n\tcopies of the Software, and to permit persons to whom the Software is\n\tfurnished to do so, subject to the following conditions:\n\t\n\tThe above copyright notice and this permission notice shall be included in\n\tall copies or substantial portions of the Software.\n\t\n\tTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n\tIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n\tFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n\tAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n\tLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n\tOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n\tTHE SOFTWARE. */\n\t\n\tvar glMatrix = __webpack_require__(10);\n\t\n\t/**\n\t * @class 4 Dimensional Vector\n\t * @name vec4\n\t */\n\tvar vec4 = {};\n\t\n\t/**\n\t * Creates a new, empty vec4\n\t *\n\t * @returns {vec4} a new 4D vector\n\t */\n\tvec4.create = function() {\n\t var out = new glMatrix.ARRAY_TYPE(4);\n\t out[0] = 0;\n\t out[1] = 0;\n\t out[2] = 0;\n\t out[3] = 0;\n\t return out;\n\t};\n\t\n\t/**\n\t * Creates a new vec4 initialized with values from an existing vector\n\t *\n\t * @param {vec4} a vector to clone\n\t * @returns {vec4} a new 4D vector\n\t */\n\tvec4.clone = function(a) {\n\t var out = new glMatrix.ARRAY_TYPE(4);\n\t out[0] = a[0];\n\t out[1] = a[1];\n\t out[2] = a[2];\n\t out[3] = a[3];\n\t return out;\n\t};\n\t\n\t/**\n\t * Creates a new vec4 initialized with the given values\n\t *\n\t * @param {Number} x X component\n\t * @param {Number} y Y component\n\t * @param {Number} z Z component\n\t * @param {Number} w W component\n\t * @returns {vec4} a new 4D vector\n\t */\n\tvec4.fromValues = function(x, y, z, w) {\n\t var out = new glMatrix.ARRAY_TYPE(4);\n\t out[0] = x;\n\t out[1] = y;\n\t out[2] = z;\n\t out[3] = w;\n\t return out;\n\t};\n\t\n\t/**\n\t * Copy the values from one vec4 to another\n\t *\n\t * @param {vec4} out the receiving vector\n\t * @param {vec4} a the source vector\n\t * @returns {vec4} out\n\t */\n\tvec4.copy = function(out, a) {\n\t out[0] = a[0];\n\t out[1] = a[1];\n\t out[2] = a[2];\n\t out[3] = a[3];\n\t return out;\n\t};\n\t\n\t/**\n\t * Set the components of a vec4 to the given values\n\t *\n\t * @param {vec4} out the receiving vector\n\t * @param {Number} x X component\n\t * @param {Number} y Y component\n\t * @param {Number} z Z component\n\t * @param {Number} w W component\n\t * @returns {vec4} out\n\t */\n\tvec4.set = function(out, x, y, z, w) {\n\t out[0] = x;\n\t out[1] = y;\n\t out[2] = z;\n\t out[3] = w;\n\t return out;\n\t};\n\t\n\t/**\n\t * Adds two vec4's\n\t *\n\t * @param {vec4} out the receiving vector\n\t * @param {vec4} a the first operand\n\t * @param {vec4} b the second operand\n\t * @returns {vec4} out\n\t */\n\tvec4.add = function(out, a, b) {\n\t out[0] = a[0] + b[0];\n\t out[1] = a[1] + b[1];\n\t out[2] = a[2] + b[2];\n\t out[3] = a[3] + b[3];\n\t return out;\n\t};\n\t\n\t/**\n\t * Subtracts vector b from vector a\n\t *\n\t * @param {vec4} out the receiving vector\n\t * @param {vec4} a the first operand\n\t * @param {vec4} b the second operand\n\t * @returns {vec4} out\n\t */\n\tvec4.subtract = function(out, a, b) {\n\t out[0] = a[0] - b[0];\n\t out[1] = a[1] - b[1];\n\t out[2] = a[2] - b[2];\n\t out[3] = a[3] - b[3];\n\t return out;\n\t};\n\t\n\t/**\n\t * Alias for {@link vec4.subtract}\n\t * @function\n\t */\n\tvec4.sub = vec4.subtract;\n\t\n\t/**\n\t * Multiplies two vec4's\n\t *\n\t * @param {vec4} out the receiving vector\n\t * @param {vec4} a the first operand\n\t * @param {vec4} b the second operand\n\t * @returns {vec4} out\n\t */\n\tvec4.multiply = function(out, a, b) {\n\t out[0] = a[0] * b[0];\n\t out[1] = a[1] * b[1];\n\t out[2] = a[2] * b[2];\n\t out[3] = a[3] * b[3];\n\t return out;\n\t};\n\t\n\t/**\n\t * Alias for {@link vec4.multiply}\n\t * @function\n\t */\n\tvec4.mul = vec4.multiply;\n\t\n\t/**\n\t * Divides two vec4's\n\t *\n\t * @param {vec4} out the receiving vector\n\t * @param {vec4} a the first operand\n\t * @param {vec4} b the second operand\n\t * @returns {vec4} out\n\t */\n\tvec4.divide = function(out, a, b) {\n\t out[0] = a[0] / b[0];\n\t out[1] = a[1] / b[1];\n\t out[2] = a[2] / b[2];\n\t out[3] = a[3] / b[3];\n\t return out;\n\t};\n\t\n\t/**\n\t * Alias for {@link vec4.divide}\n\t * @function\n\t */\n\tvec4.div = vec4.divide;\n\t\n\t/**\n\t * Returns the minimum of two vec4's\n\t *\n\t * @param {vec4} out the receiving vector\n\t * @param {vec4} a the first operand\n\t * @param {vec4} b the second operand\n\t * @returns {vec4} out\n\t */\n\tvec4.min = function(out, a, b) {\n\t out[0] = Math.min(a[0], b[0]);\n\t out[1] = Math.min(a[1], b[1]);\n\t out[2] = Math.min(a[2], b[2]);\n\t out[3] = Math.min(a[3], b[3]);\n\t return out;\n\t};\n\t\n\t/**\n\t * Returns the maximum of two vec4's\n\t *\n\t * @param {vec4} out the receiving vector\n\t * @param {vec4} a the first operand\n\t * @param {vec4} b the second operand\n\t * @returns {vec4} out\n\t */\n\tvec4.max = function(out, a, b) {\n\t out[0] = Math.max(a[0], b[0]);\n\t out[1] = Math.max(a[1], b[1]);\n\t out[2] = Math.max(a[2], b[2]);\n\t out[3] = Math.max(a[3], b[3]);\n\t return out;\n\t};\n\t\n\t/**\n\t * Scales a vec4 by a scalar number\n\t *\n\t * @param {vec4} out the receiving vector\n\t * @param {vec4} a the vector to scale\n\t * @param {Number} b amount to scale the vector by\n\t * @returns {vec4} out\n\t */\n\tvec4.scale = function(out, a, b) {\n\t out[0] = a[0] * b;\n\t out[1] = a[1] * b;\n\t out[2] = a[2] * b;\n\t out[3] = a[3] * b;\n\t return out;\n\t};\n\t\n\t/**\n\t * Adds two vec4's after scaling the second operand by a scalar value\n\t *\n\t * @param {vec4} out the receiving vector\n\t * @param {vec4} a the first operand\n\t * @param {vec4} b the second operand\n\t * @param {Number} scale the amount to scale b by before adding\n\t * @returns {vec4} out\n\t */\n\tvec4.scaleAndAdd = function(out, a, b, scale) {\n\t out[0] = a[0] + (b[0] * scale);\n\t out[1] = a[1] + (b[1] * scale);\n\t out[2] = a[2] + (b[2] * scale);\n\t out[3] = a[3] + (b[3] * scale);\n\t return out;\n\t};\n\t\n\t/**\n\t * Calculates the euclidian distance between two vec4's\n\t *\n\t * @param {vec4} a the first operand\n\t * @param {vec4} b the second operand\n\t * @returns {Number} distance between a and b\n\t */\n\tvec4.distance = function(a, b) {\n\t var x = b[0] - a[0],\n\t y = b[1] - a[1],\n\t z = b[2] - a[2],\n\t w = b[3] - a[3];\n\t return Math.sqrt(x*x + y*y + z*z + w*w);\n\t};\n\t\n\t/**\n\t * Alias for {@link vec4.distance}\n\t * @function\n\t */\n\tvec4.dist = vec4.distance;\n\t\n\t/**\n\t * Calculates the squared euclidian distance between two vec4's\n\t *\n\t * @param {vec4} a the first operand\n\t * @param {vec4} b the second operand\n\t * @returns {Number} squared distance between a and b\n\t */\n\tvec4.squaredDistance = function(a, b) {\n\t var x = b[0] - a[0],\n\t y = b[1] - a[1],\n\t z = b[2] - a[2],\n\t w = b[3] - a[3];\n\t return x*x + y*y + z*z + w*w;\n\t};\n\t\n\t/**\n\t * Alias for {@link vec4.squaredDistance}\n\t * @function\n\t */\n\tvec4.sqrDist = vec4.squaredDistance;\n\t\n\t/**\n\t * Calculates the length of a vec4\n\t *\n\t * @param {vec4} a vector to calculate length of\n\t * @returns {Number} length of a\n\t */\n\tvec4.length = function (a) {\n\t var x = a[0],\n\t y = a[1],\n\t z = a[2],\n\t w = a[3];\n\t return Math.sqrt(x*x + y*y + z*z + w*w);\n\t};\n\t\n\t/**\n\t * Alias for {@link vec4.length}\n\t * @function\n\t */\n\tvec4.len = vec4.length;\n\t\n\t/**\n\t * Calculates the squared length of a vec4\n\t *\n\t * @param {vec4} a vector to calculate squared length of\n\t * @returns {Number} squared length of a\n\t */\n\tvec4.squaredLength = function (a) {\n\t var x = a[0],\n\t y = a[1],\n\t z = a[2],\n\t w = a[3];\n\t return x*x + y*y + z*z + w*w;\n\t};\n\t\n\t/**\n\t * Alias for {@link vec4.squaredLength}\n\t * @function\n\t */\n\tvec4.sqrLen = vec4.squaredLength;\n\t\n\t/**\n\t * Negates the components of a vec4\n\t *\n\t * @param {vec4} out the receiving vector\n\t * @param {vec4} a vector to negate\n\t * @returns {vec4} out\n\t */\n\tvec4.negate = function(out, a) {\n\t out[0] = -a[0];\n\t out[1] = -a[1];\n\t out[2] = -a[2];\n\t out[3] = -a[3];\n\t return out;\n\t};\n\t\n\t/**\n\t * Returns the inverse of the components of a vec4\n\t *\n\t * @param {vec4} out the receiving vector\n\t * @param {vec4} a vector to invert\n\t * @returns {vec4} out\n\t */\n\tvec4.inverse = function(out, a) {\n\t out[0] = 1.0 / a[0];\n\t out[1] = 1.0 / a[1];\n\t out[2] = 1.0 / a[2];\n\t out[3] = 1.0 / a[3];\n\t return out;\n\t};\n\t\n\t/**\n\t * Normalize a vec4\n\t *\n\t * @param {vec4} out the receiving vector\n\t * @param {vec4} a vector to normalize\n\t * @returns {vec4} out\n\t */\n\tvec4.normalize = function(out, a) {\n\t var x = a[0],\n\t y = a[1],\n\t z = a[2],\n\t w = a[3];\n\t var len = x*x + y*y + z*z + w*w;\n\t if (len > 0) {\n\t len = 1 / Math.sqrt(len);\n\t out[0] = x * len;\n\t out[1] = y * len;\n\t out[2] = z * len;\n\t out[3] = w * len;\n\t }\n\t return out;\n\t};\n\t\n\t/**\n\t * Calculates the dot product of two vec4's\n\t *\n\t * @param {vec4} a the first operand\n\t * @param {vec4} b the second operand\n\t * @returns {Number} dot product of a and b\n\t */\n\tvec4.dot = function (a, b) {\n\t return a[0] * b[0] + a[1] * b[1] + a[2] * b[2] + a[3] * b[3];\n\t};\n\t\n\t/**\n\t * Performs a linear interpolation between two vec4's\n\t *\n\t * @param {vec4} out the receiving vector\n\t * @param {vec4} a the first operand\n\t * @param {vec4} b the second operand\n\t * @param {Number} t interpolation amount between the two inputs\n\t * @returns {vec4} out\n\t */\n\tvec4.lerp = function (out, a, b, t) {\n\t var ax = a[0],\n\t ay = a[1],\n\t az = a[2],\n\t aw = a[3];\n\t out[0] = ax + t * (b[0] - ax);\n\t out[1] = ay + t * (b[1] - ay);\n\t out[2] = az + t * (b[2] - az);\n\t out[3] = aw + t * (b[3] - aw);\n\t return out;\n\t};\n\t\n\t/**\n\t * Generates a random vector with the given scale\n\t *\n\t * @param {vec4} out the receiving vector\n\t * @param {Number} [scale] Length of the resulting vector. If ommitted, a unit vector will be returned\n\t * @returns {vec4} out\n\t */\n\tvec4.random = function (out, scale) {\n\t scale = scale || 1.0;\n\t\n\t //TODO: This is a pretty awful way of doing this. Find something better.\n\t out[0] = glMatrix.RANDOM();\n\t out[1] = glMatrix.RANDOM();\n\t out[2] = glMatrix.RANDOM();\n\t out[3] = glMatrix.RANDOM();\n\t vec4.normalize(out, out);\n\t vec4.scale(out, out, scale);\n\t return out;\n\t};\n\t\n\t/**\n\t * Transforms the vec4 with a mat4.\n\t *\n\t * @param {vec4} out the receiving vector\n\t * @param {vec4} a the vector to transform\n\t * @param {mat4} m matrix to transform with\n\t * @returns {vec4} out\n\t */\n\tvec4.transformMat4 = function(out, a, m) {\n\t var x = a[0], y = a[1], z = a[2], w = a[3];\n\t out[0] = m[0] * x + m[4] * y + m[8] * z + m[12] * w;\n\t out[1] = m[1] * x + m[5] * y + m[9] * z + m[13] * w;\n\t out[2] = m[2] * x + m[6] * y + m[10] * z + m[14] * w;\n\t out[3] = m[3] * x + m[7] * y + m[11] * z + m[15] * w;\n\t return out;\n\t};\n\t\n\t/**\n\t * Transforms the vec4 with a quat\n\t *\n\t * @param {vec4} out the receiving vector\n\t * @param {vec4} a the vector to transform\n\t * @param {quat} q quaternion to transform with\n\t * @returns {vec4} out\n\t */\n\tvec4.transformQuat = function(out, a, q) {\n\t var x = a[0], y = a[1], z = a[2],\n\t qx = q[0], qy = q[1], qz = q[2], qw = q[3],\n\t\n\t // calculate quat * vec\n\t ix = qw * x + qy * z - qz * y,\n\t iy = qw * y + qz * x - qx * z,\n\t iz = qw * z + qx * y - qy * x,\n\t iw = -qx * x - qy * y - qz * z;\n\t\n\t // calculate result * inverse quat\n\t out[0] = ix * qw + iw * -qx + iy * -qz - iz * -qy;\n\t out[1] = iy * qw + iw * -qy + iz * -qx - ix * -qz;\n\t out[2] = iz * qw + iw * -qz + ix * -qy - iy * -qx;\n\t out[3] = a[3];\n\t return out;\n\t};\n\t\n\t/**\n\t * Perform some operation over an array of vec4s.\n\t *\n\t * @param {Array} a the array of vectors to iterate over\n\t * @param {Number} stride Number of elements between the start of each vec4. If 0 assumes tightly packed\n\t * @param {Number} offset Number of elements to skip at the beginning of the array\n\t * @param {Number} count Number of vec4s to iterate over. If 0 iterates over entire array\n\t * @param {Function} fn Function to call for each vector in the array\n\t * @param {Object} [arg] additional argument to pass to fn\n\t * @returns {Array} a\n\t * @function\n\t */\n\tvec4.forEach = (function() {\n\t var vec = vec4.create();\n\t\n\t return function(a, stride, offset, count, fn, arg) {\n\t var i, l;\n\t if(!stride) {\n\t stride = 4;\n\t }\n\t\n\t if(!offset) {\n\t offset = 0;\n\t }\n\t \n\t if(count) {\n\t l = Math.min((count * stride) + offset, a.length);\n\t } else {\n\t l = a.length;\n\t }\n\t\n\t for(i = offset; i < l; i += stride) {\n\t vec[0] = a[i]; vec[1] = a[i+1]; vec[2] = a[i+2]; vec[3] = a[i+3];\n\t fn(vec, vec, arg);\n\t a[i] = vec[0]; a[i+1] = vec[1]; a[i+2] = vec[2]; a[i+3] = vec[3];\n\t }\n\t \n\t return a;\n\t };\n\t})();\n\t\n\t/**\n\t * Returns a string representation of a vector\n\t *\n\t * @param {vec4} vec vector to represent as a string\n\t * @returns {String} string representation of the vector\n\t */\n\tvec4.str = function (a) {\n\t return 'vec4(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' + a[3] + ')';\n\t};\n\t\n\tmodule.exports = vec4;\n\n\n/***/ },\n/* 18 */\n/***/ function(module, exports, __webpack_require__) {\n\n\t/* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV.\n\t\n\tPermission is hereby granted, free of charge, to any person obtaining a copy\n\tof this software and associated documentation files (the \"Software\"), to deal\n\tin the Software without restriction, including without limitation the rights\n\tto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n\tcopies of the Software, and to permit persons to whom the Software is\n\tfurnished to do so, subject to the following conditions:\n\t\n\tThe above copyright notice and this permission notice shall be included in\n\tall copies or substantial portions of the Software.\n\t\n\tTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n\tIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n\tFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n\tAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n\tLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n\tOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n\tTHE SOFTWARE. */\n\t\n\tvar glMatrix = __webpack_require__(10);\n\t\n\t/**\n\t * @class 2 Dimensional Vector\n\t * @name vec2\n\t */\n\tvar vec2 = {};\n\t\n\t/**\n\t * Creates a new, empty vec2\n\t *\n\t * @returns {vec2} a new 2D vector\n\t */\n\tvec2.create = function() {\n\t var out = new glMatrix.ARRAY_TYPE(2);\n\t out[0] = 0;\n\t out[1] = 0;\n\t return out;\n\t};\n\t\n\t/**\n\t * Creates a new vec2 initialized with values from an existing vector\n\t *\n\t * @param {vec2} a vector to clone\n\t * @returns {vec2} a new 2D vector\n\t */\n\tvec2.clone = function(a) {\n\t var out = new glMatrix.ARRAY_TYPE(2);\n\t out[0] = a[0];\n\t out[1] = a[1];\n\t return out;\n\t};\n\t\n\t/**\n\t * Creates a new vec2 initialized with the given values\n\t *\n\t * @param {Number} x X component\n\t * @param {Number} y Y component\n\t * @returns {vec2} a new 2D vector\n\t */\n\tvec2.fromValues = function(x, y) {\n\t var out = new glMatrix.ARRAY_TYPE(2);\n\t out[0] = x;\n\t out[1] = y;\n\t return out;\n\t};\n\t\n\t/**\n\t * Copy the values from one vec2 to another\n\t *\n\t * @param {vec2} out the receiving vector\n\t * @param {vec2} a the source vector\n\t * @returns {vec2} out\n\t */\n\tvec2.copy = function(out, a) {\n\t out[0] = a[0];\n\t out[1] = a[1];\n\t return out;\n\t};\n\t\n\t/**\n\t * Set the components of a vec2 to the given values\n\t *\n\t * @param {vec2} out the receiving vector\n\t * @param {Number} x X component\n\t * @param {Number} y Y component\n\t * @returns {vec2} out\n\t */\n\tvec2.set = function(out, x, y) {\n\t out[0] = x;\n\t out[1] = y;\n\t return out;\n\t};\n\t\n\t/**\n\t * Adds two vec2's\n\t *\n\t * @param {vec2} out the receiving vector\n\t * @param {vec2} a the first operand\n\t * @param {vec2} b the second operand\n\t * @returns {vec2} out\n\t */\n\tvec2.add = function(out, a, b) {\n\t out[0] = a[0] + b[0];\n\t out[1] = a[1] + b[1];\n\t return out;\n\t};\n\t\n\t/**\n\t * Subtracts vector b from vector a\n\t *\n\t * @param {vec2} out the receiving vector\n\t * @param {vec2} a the first operand\n\t * @param {vec2} b the second operand\n\t * @returns {vec2} out\n\t */\n\tvec2.subtract = function(out, a, b) {\n\t out[0] = a[0] - b[0];\n\t out[1] = a[1] - b[1];\n\t return out;\n\t};\n\t\n\t/**\n\t * Alias for {@link vec2.subtract}\n\t * @function\n\t */\n\tvec2.sub = vec2.subtract;\n\t\n\t/**\n\t * Multiplies two vec2's\n\t *\n\t * @param {vec2} out the receiving vector\n\t * @param {vec2} a the first operand\n\t * @param {vec2} b the second operand\n\t * @returns {vec2} out\n\t */\n\tvec2.multiply = function(out, a, b) {\n\t out[0] = a[0] * b[0];\n\t out[1] = a[1] * b[1];\n\t return out;\n\t};\n\t\n\t/**\n\t * Alias for {@link vec2.multiply}\n\t * @function\n\t */\n\tvec2.mul = vec2.multiply;\n\t\n\t/**\n\t * Divides two vec2's\n\t *\n\t * @param {vec2} out the receiving vector\n\t * @param {vec2} a the first operand\n\t * @param {vec2} b the second operand\n\t * @returns {vec2} out\n\t */\n\tvec2.divide = function(out, a, b) {\n\t out[0] = a[0] / b[0];\n\t out[1] = a[1] / b[1];\n\t return out;\n\t};\n\t\n\t/**\n\t * Alias for {@link vec2.divide}\n\t * @function\n\t */\n\tvec2.div = vec2.divide;\n\t\n\t/**\n\t * Returns the minimum of two vec2's\n\t *\n\t * @param {vec2} out the receiving vector\n\t * @param {vec2} a the first operand\n\t * @param {vec2} b the second operand\n\t * @returns {vec2} out\n\t */\n\tvec2.min = function(out, a, b) {\n\t out[0] = Math.min(a[0], b[0]);\n\t out[1] = Math.min(a[1], b[1]);\n\t return out;\n\t};\n\t\n\t/**\n\t * Returns the maximum of two vec2's\n\t *\n\t * @param {vec2} out the receiving vector\n\t * @param {vec2} a the first operand\n\t * @param {vec2} b the second operand\n\t * @returns {vec2} out\n\t */\n\tvec2.max = function(out, a, b) {\n\t out[0] = Math.max(a[0], b[0]);\n\t out[1] = Math.max(a[1], b[1]);\n\t return out;\n\t};\n\t\n\t/**\n\t * Scales a vec2 by a scalar number\n\t *\n\t * @param {vec2} out the receiving vector\n\t * @param {vec2} a the vector to scale\n\t * @param {Number} b amount to scale the vector by\n\t * @returns {vec2} out\n\t */\n\tvec2.scale = function(out, a, b) {\n\t out[0] = a[0] * b;\n\t out[1] = a[1] * b;\n\t return out;\n\t};\n\t\n\t/**\n\t * Adds two vec2's after scaling the second operand by a scalar value\n\t *\n\t * @param {vec2} out the receiving vector\n\t * @param {vec2} a the first operand\n\t * @param {vec2} b the second operand\n\t * @param {Number} scale the amount to scale b by before adding\n\t * @returns {vec2} out\n\t */\n\tvec2.scaleAndAdd = function(out, a, b, scale) {\n\t out[0] = a[0] + (b[0] * scale);\n\t out[1] = a[1] + (b[1] * scale);\n\t return out;\n\t};\n\t\n\t/**\n\t * Calculates the euclidian distance between two vec2's\n\t *\n\t * @param {vec2} a the first operand\n\t * @param {vec2} b the second operand\n\t * @returns {Number} distance between a and b\n\t */\n\tvec2.distance = function(a, b) {\n\t var x = b[0] - a[0],\n\t y = b[1] - a[1];\n\t return Math.sqrt(x*x + y*y);\n\t};\n\t\n\t/**\n\t * Alias for {@link vec2.distance}\n\t * @function\n\t */\n\tvec2.dist = vec2.distance;\n\t\n\t/**\n\t * Calculates the squared euclidian distance between two vec2's\n\t *\n\t * @param {vec2} a the first operand\n\t * @param {vec2} b the second operand\n\t * @returns {Number} squared distance between a and b\n\t */\n\tvec2.squaredDistance = function(a, b) {\n\t var x = b[0] - a[0],\n\t y = b[1] - a[1];\n\t return x*x + y*y;\n\t};\n\t\n\t/**\n\t * Alias for {@link vec2.squaredDistance}\n\t * @function\n\t */\n\tvec2.sqrDist = vec2.squaredDistance;\n\t\n\t/**\n\t * Calculates the length of a vec2\n\t *\n\t * @param {vec2} a vector to calculate length of\n\t * @returns {Number} length of a\n\t */\n\tvec2.length = function (a) {\n\t var x = a[0],\n\t y = a[1];\n\t return Math.sqrt(x*x + y*y);\n\t};\n\t\n\t/**\n\t * Alias for {@link vec2.length}\n\t * @function\n\t */\n\tvec2.len = vec2.length;\n\t\n\t/**\n\t * Calculates the squared length of a vec2\n\t *\n\t * @param {vec2} a vector to calculate squared length of\n\t * @returns {Number} squared length of a\n\t */\n\tvec2.squaredLength = function (a) {\n\t var x = a[0],\n\t y = a[1];\n\t return x*x + y*y;\n\t};\n\t\n\t/**\n\t * Alias for {@link vec2.squaredLength}\n\t * @function\n\t */\n\tvec2.sqrLen = vec2.squaredLength;\n\t\n\t/**\n\t * Negates the components of a vec2\n\t *\n\t * @param {vec2} out the receiving vector\n\t * @param {vec2} a vector to negate\n\t * @returns {vec2} out\n\t */\n\tvec2.negate = function(out, a) {\n\t out[0] = -a[0];\n\t out[1] = -a[1];\n\t return out;\n\t};\n\t\n\t/**\n\t * Returns the inverse of the components of a vec2\n\t *\n\t * @param {vec2} out the receiving vector\n\t * @param {vec2} a vector to invert\n\t * @returns {vec2} out\n\t */\n\tvec2.inverse = function(out, a) {\n\t out[0] = 1.0 / a[0];\n\t out[1] = 1.0 / a[1];\n\t return out;\n\t};\n\t\n\t/**\n\t * Normalize a vec2\n\t *\n\t * @param {vec2} out the receiving vector\n\t * @param {vec2} a vector to normalize\n\t * @returns {vec2} out\n\t */\n\tvec2.normalize = function(out, a) {\n\t var x = a[0],\n\t y = a[1];\n\t var len = x*x + y*y;\n\t if (len > 0) {\n\t //TODO: evaluate use of glm_invsqrt here?\n\t len = 1 / Math.sqrt(len);\n\t out[0] = a[0] * len;\n\t out[1] = a[1] * len;\n\t }\n\t return out;\n\t};\n\t\n\t/**\n\t * Calculates the dot product of two vec2's\n\t *\n\t * @param {vec2} a the first operand\n\t * @param {vec2} b the second operand\n\t * @returns {Number} dot product of a and b\n\t */\n\tvec2.dot = function (a, b) {\n\t return a[0] * b[0] + a[1] * b[1];\n\t};\n\t\n\t/**\n\t * Computes the cross product of two vec2's\n\t * Note that the cross product must by definition produce a 3D vector\n\t *\n\t * @param {vec3} out the receiving vector\n\t * @param {vec2} a the first operand\n\t * @param {vec2} b the second operand\n\t * @returns {vec3} out\n\t */\n\tvec2.cross = function(out, a, b) {\n\t var z = a[0] * b[1] - a[1] * b[0];\n\t out[0] = out[1] = 0;\n\t out[2] = z;\n\t return out;\n\t};\n\t\n\t/**\n\t * Performs a linear interpolation between two vec2's\n\t *\n\t * @param {vec2} out the receiving vector\n\t * @param {vec2} a the first operand\n\t * @param {vec2} b the second operand\n\t * @param {Number} t interpolation amount between the two inputs\n\t * @returns {vec2} out\n\t */\n\tvec2.lerp = function (out, a, b, t) {\n\t var ax = a[0],\n\t ay = a[1];\n\t out[0] = ax + t * (b[0] - ax);\n\t out[1] = ay + t * (b[1] - ay);\n\t return out;\n\t};\n\t\n\t/**\n\t * Generates a random vector with the given scale\n\t *\n\t * @param {vec2} out the receiving vector\n\t * @param {Number} [scale] Length of the resulting vector. If ommitted, a unit vector will be returned\n\t * @returns {vec2} out\n\t */\n\tvec2.random = function (out, scale) {\n\t scale = scale || 1.0;\n\t var r = glMatrix.RANDOM() * 2.0 * Math.PI;\n\t out[0] = Math.cos(r) * scale;\n\t out[1] = Math.sin(r) * scale;\n\t return out;\n\t};\n\t\n\t/**\n\t * Transforms the vec2 with a mat2\n\t *\n\t * @param {vec2} out the receiving vector\n\t * @param {vec2} a the vector to transform\n\t * @param {mat2} m matrix to transform with\n\t * @returns {vec2} out\n\t */\n\tvec2.transformMat2 = function(out, a, m) {\n\t var x = a[0],\n\t y = a[1];\n\t out[0] = m[0] * x + m[2] * y;\n\t out[1] = m[1] * x + m[3] * y;\n\t return out;\n\t};\n\t\n\t/**\n\t * Transforms the vec2 with a mat2d\n\t *\n\t * @param {vec2} out the receiving vector\n\t * @param {vec2} a the vector to transform\n\t * @param {mat2d} m matrix to transform with\n\t * @returns {vec2} out\n\t */\n\tvec2.transformMat2d = function(out, a, m) {\n\t var x = a[0],\n\t y = a[1];\n\t out[0] = m[0] * x + m[2] * y + m[4];\n\t out[1] = m[1] * x + m[3] * y + m[5];\n\t return out;\n\t};\n\t\n\t/**\n\t * Transforms the vec2 with a mat3\n\t * 3rd vector component is implicitly '1'\n\t *\n\t * @param {vec2} out the receiving vector\n\t * @param {vec2} a the vector to transform\n\t * @param {mat3} m matrix to transform with\n\t * @returns {vec2} out\n\t */\n\tvec2.transformMat3 = function(out, a, m) {\n\t var x = a[0],\n\t y = a[1];\n\t out[0] = m[0] * x + m[3] * y + m[6];\n\t out[1] = m[1] * x + m[4] * y + m[7];\n\t return out;\n\t};\n\t\n\t/**\n\t * Transforms the vec2 with a mat4\n\t * 3rd vector component is implicitly '0'\n\t * 4th vector component is implicitly '1'\n\t *\n\t * @param {vec2} out the receiving vector\n\t * @param {vec2} a the vector to transform\n\t * @param {mat4} m matrix to transform with\n\t * @returns {vec2} out\n\t */\n\tvec2.transformMat4 = function(out, a, m) {\n\t var x = a[0], \n\t y = a[1];\n\t out[0] = m[0] * x + m[4] * y + m[12];\n\t out[1] = m[1] * x + m[5] * y + m[13];\n\t return out;\n\t};\n\t\n\t/**\n\t * Perform some operation over an array of vec2s.\n\t *\n\t * @param {Array} a the array of vectors to iterate over\n\t * @param {Number} stride Number of elements between the start of each vec2. If 0 assumes tightly packed\n\t * @param {Number} offset Number of elements to skip at the beginning of the array\n\t * @param {Number} count Number of vec2s to iterate over. If 0 iterates over entire array\n\t * @param {Function} fn Function to call for each vector in the array\n\t * @param {Object} [arg] additional argument to pass to fn\n\t * @returns {Array} a\n\t * @function\n\t */\n\tvec2.forEach = (function() {\n\t var vec = vec2.create();\n\t\n\t return function(a, stride, offset, count, fn, arg) {\n\t var i, l;\n\t if(!stride) {\n\t stride = 2;\n\t }\n\t\n\t if(!offset) {\n\t offset = 0;\n\t }\n\t \n\t if(count) {\n\t l = Math.min((count * stride) + offset, a.length);\n\t } else {\n\t l = a.length;\n\t }\n\t\n\t for(i = offset; i < l; i += stride) {\n\t vec[0] = a[i]; vec[1] = a[i+1];\n\t fn(vec, vec, arg);\n\t a[i] = vec[0]; a[i+1] = vec[1];\n\t }\n\t \n\t return a;\n\t };\n\t})();\n\t\n\t/**\n\t * Returns a string representation of a vector\n\t *\n\t * @param {vec2} vec vector to represent as a string\n\t * @returns {String} string representation of the vector\n\t */\n\tvec2.str = function (a) {\n\t return 'vec2(' + a[0] + ', ' + a[1] + ')';\n\t};\n\t\n\tmodule.exports = vec2;\n\n\n/***/ },\n/* 19 */\n/***/ function(module, exports) {\n\n\t\"use strict\";\n\t\n\tObject.defineProperty(exports, \"__esModule\", {\n\t value: true\n\t});\n\texports[\"default\"] = {\n\t init: function init(arr, val) {\n\t var l = arr.length;\n\t while (l--) {\n\t arr[l] = val;\n\t }\n\t },\n\t\n\t /**\n\t * Shuffles the content of an array\n\t * @return {Array} the array itself shuffled\n\t */\n\t shuffle: function shuffle(arr) {\n\t var i = arr.length - 1,\n\t j,\n\t x;\n\t for (i; i >= 0; i--) {\n\t j = Math.floor(Math.random() * i);\n\t x = arr[i];\n\t arr[i] = arr[j];\n\t arr[j] = x;\n\t }\n\t return arr;\n\t },\n\t\n\t toPointList: function toPointList(arr) {\n\t var i,\n\t j,\n\t row = [],\n\t rows = [];\n\t for (i = 0; i < arr.length; i++) {\n\t row = [];\n\t for (j = 0; j < arr[i].length; j++) {\n\t row[j] = arr[i][j];\n\t }\n\t rows[i] = \"[\" + row.join(\",\") + \"]\";\n\t }\n\t return \"[\" + rows.join(\",\\r\\n\") + \"]\";\n\t },\n\t\n\t /**\n\t * returns the elements which's score is bigger than the threshold\n\t * @return {Array} the reduced array\n\t */\n\t threshold: function threshold(arr, _threshold, scoreFunc) {\n\t var i,\n\t queue = [];\n\t for (i = 0; i < arr.length; i++) {\n\t if (scoreFunc.apply(arr, [arr[i]]) >= _threshold) {\n\t queue.push(arr[i]);\n\t }\n\t }\n\t return queue;\n\t },\n\t\n\t maxIndex: function maxIndex(arr) {\n\t var i,\n\t max = 0;\n\t for (i = 0; i < arr.length; i++) {\n\t if (arr[i] > arr[max]) {\n\t max = i;\n\t }\n\t }\n\t return max;\n\t },\n\t\n\t max: function max(arr) {\n\t var i,\n\t max = 0;\n\t for (i = 0; i < arr.length; i++) {\n\t if (arr[i] > max) {\n\t max = arr[i];\n\t }\n\t }\n\t return max;\n\t },\n\t\n\t sum: function sum(arr) {\n\t var length = arr.length,\n\t sum = 0;\n\t\n\t while (length--) {\n\t sum += arr[length];\n\t }\n\t return sum;\n\t }\n\t};\n\tmodule.exports = exports[\"default\"];\n\n/***/ },\n/* 20 */\n/***/ function(module, exports, __webpack_require__) {\n\n\t/* jshint undef: true, unused: true, browser:true, devel: true */\n\t/* global define */\n\t\n\t'use strict';\n\t\n\tObject.defineProperty(exports, '__esModule', {\n\t value: true\n\t});\n\t\n\tfunction _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }\n\t\n\tvar _image_wrapper = __webpack_require__(5);\n\t\n\tvar _image_wrapper2 = _interopRequireDefault(_image_wrapper);\n\t\n\tvar _cv_utils = __webpack_require__(7);\n\t\n\tvar _cv_utils2 = _interopRequireDefault(_cv_utils);\n\t\n\tvar _rasterizer = __webpack_require__(21);\n\t\n\tvar _rasterizer2 = _interopRequireDefault(_rasterizer);\n\t\n\tvar _tracer = __webpack_require__(22);\n\t\n\tvar _tracer2 = _interopRequireDefault(_tracer);\n\t\n\tvar _skeletonizer2 = __webpack_require__(23);\n\t\n\tvar _skeletonizer3 = _interopRequireDefault(_skeletonizer2);\n\t\n\tvar _array_helper = __webpack_require__(19);\n\t\n\tvar _array_helper2 = _interopRequireDefault(_array_helper);\n\t\n\tvar _image_debug = __webpack_require__(24);\n\t\n\tvar _image_debug2 = _interopRequireDefault(_image_debug);\n\t\n\tvar _glMatrix = __webpack_require__(9);\n\t\n\tvar _glMatrix2 = _interopRequireDefault(_glMatrix);\n\t\n\tvar _config,\n\t _currentImageWrapper,\n\t _skelImageWrapper,\n\t _subImageWrapper,\n\t _labelImageWrapper,\n\t _patchGrid,\n\t _patchLabelGrid,\n\t _imageToPatchGrid,\n\t _binaryImageWrapper,\n\t _patchSize,\n\t _canvasContainer = {\n\t ctx: {\n\t binary: null\n\t },\n\t dom: {\n\t binary: null\n\t }\n\t},\n\t _numPatches = { x: 0, y: 0 },\n\t _inputImageWrapper,\n\t _skeletonizer,\n\t vec2 = _glMatrix2['default'].vec2,\n\t mat2 = _glMatrix2['default'].mat2,\n\t self = typeof window !== 'undefined' ? window : self;\n\t\n\tfunction initBuffers() {\n\t var skeletonImageData;\n\t\n\t if (_config.halfSample) {\n\t _currentImageWrapper = new _image_wrapper2['default']({\n\t x: _inputImageWrapper.size.x / 2 | 0,\n\t y: _inputImageWrapper.size.y / 2 | 0\n\t });\n\t } else {\n\t _currentImageWrapper = _inputImageWrapper;\n\t }\n\t\n\t _patchSize = _cv_utils2['default'].calculatePatchSize(_config.patchSize, _currentImageWrapper.size);\n\t\n\t _numPatches.x = _currentImageWrapper.size.x / _patchSize.x | 0;\n\t _numPatches.y = _currentImageWrapper.size.y / _patchSize.y | 0;\n\t\n\t _binaryImageWrapper = new _image_wrapper2['default'](_currentImageWrapper.size, undefined, Uint8Array, false);\n\t\n\t _labelImageWrapper = new _image_wrapper2['default'](_patchSize, undefined, Array, true);\n\t\n\t skeletonImageData = new ArrayBuffer(64 * 1024);\n\t _subImageWrapper = new _image_wrapper2['default'](_patchSize, new Uint8Array(skeletonImageData, 0, _patchSize.x * _patchSize.y));\n\t _skelImageWrapper = new _image_wrapper2['default'](_patchSize, new Uint8Array(skeletonImageData, _patchSize.x * _patchSize.y * 3, _patchSize.x * _patchSize.y), undefined, true);\n\t _skeletonizer = (0, _skeletonizer3['default'])(self, {\n\t size: _patchSize.x\n\t }, skeletonImageData);\n\t\n\t _imageToPatchGrid = new _image_wrapper2['default']({\n\t x: _currentImageWrapper.size.x / _subImageWrapper.size.x | 0,\n\t y: _currentImageWrapper.size.y / _subImageWrapper.size.y | 0\n\t }, undefined, Array, true);\n\t _patchGrid = new _image_wrapper2['default'](_imageToPatchGrid.size, undefined, undefined, true);\n\t _patchLabelGrid = new _image_wrapper2['default'](_imageToPatchGrid.size, undefined, Int32Array, true);\n\t}\n\t\n\tfunction initCanvas() {\n\t if (_config.useWorker || typeof document === 'undefined') {\n\t return;\n\t }\n\t _canvasContainer.dom.binary = document.createElement(\"canvas\");\n\t _canvasContainer.dom.binary.className = \"binaryBuffer\";\n\t if (_config.showCanvas === true) {\n\t document.querySelector(\"#debug\").appendChild(_canvasContainer.dom.binary);\n\t }\n\t _canvasContainer.ctx.binary = _canvasContainer.dom.binary.getContext(\"2d\");\n\t _canvasContainer.dom.binary.width = _binaryImageWrapper.size.x;\n\t _canvasContainer.dom.binary.height = _binaryImageWrapper.size.y;\n\t}\n\t\n\t/**\n\t * Creates a bounding box which encloses all the given patches\n\t * @returns {Array} The minimal bounding box\n\t */\n\tfunction boxFromPatches(patches) {\n\t var overAvg,\n\t i,\n\t j,\n\t patch,\n\t transMat,\n\t minx = _binaryImageWrapper.size.x,\n\t miny = _binaryImageWrapper.size.y,\n\t maxx = -_binaryImageWrapper.size.x,\n\t maxy = -_binaryImageWrapper.size.y,\n\t box,\n\t scale;\n\t\n\t // draw all patches which are to be taken into consideration\n\t overAvg = 0;\n\t for (i = 0; i < patches.length; i++) {\n\t patch = patches[i];\n\t overAvg += patch.rad;\n\t if (_config.showPatches) {\n\t _image_debug2['default'].drawRect(patch.pos, _subImageWrapper.size, _canvasContainer.ctx.binary, { color: \"red\" });\n\t }\n\t }\n\t\n\t overAvg /= patches.length;\n\t overAvg = (overAvg * 180 / Math.PI + 90) % 180 - 90;\n\t if (overAvg < 0) {\n\t overAvg += 180;\n\t }\n\t\n\t overAvg = (180 - overAvg) * Math.PI / 180;\n\t transMat = mat2.clone([Math.cos(overAvg), Math.sin(overAvg), -Math.sin(overAvg), Math.cos(overAvg)]);\n\t\n\t // iterate over patches and rotate by angle\n\t for (i = 0; i < patches.length; i++) {\n\t patch = patches[i];\n\t for (j = 0; j < 4; j++) {\n\t vec2.transformMat2(patch.box[j], patch.box[j], transMat);\n\t }\n\t\n\t if (_config.boxFromPatches.showTransformed) {\n\t _image_debug2['default'].drawPath(patch.box, { x: 0, y: 1 }, _canvasContainer.ctx.binary, { color: '#99ff00', lineWidth: 2 });\n\t }\n\t }\n\t\n\t // find bounding box\n\t for (i = 0; i < patches.length; i++) {\n\t patch = patches[i];\n\t for (j = 0; j < 4; j++) {\n\t if (patch.box[j][0] < minx) {\n\t minx = patch.box[j][0];\n\t }\n\t if (patch.box[j][0] > maxx) {\n\t maxx = patch.box[j][0];\n\t }\n\t if (patch.box[j][1] < miny) {\n\t miny = patch.box[j][1];\n\t }\n\t if (patch.box[j][1] > maxy) {\n\t maxy = patch.box[j][1];\n\t }\n\t }\n\t }\n\t\n\t box = [[minx, miny], [maxx, miny], [maxx, maxy], [minx, maxy]];\n\t\n\t if (_config.boxFromPatches.showTransformedBox) {\n\t _image_debug2['default'].drawPath(box, { x: 0, y: 1 }, _canvasContainer.ctx.binary, { color: '#ff0000', lineWidth: 2 });\n\t }\n\t\n\t scale = _config.halfSample ? 2 : 1;\n\t // reverse rotation;\n\t transMat = mat2.invert(transMat, transMat);\n\t for (j = 0; j < 4; j++) {\n\t vec2.transformMat2(box[j], box[j], transMat);\n\t }\n\t\n\t if (_config.boxFromPatches.showBB) {\n\t _image_debug2['default'].drawPath(box, { x: 0, y: 1 }, _canvasContainer.ctx.binary, { color: '#ff0000', lineWidth: 2 });\n\t }\n\t\n\t for (j = 0; j < 4; j++) {\n\t vec2.scale(box[j], box[j], scale);\n\t }\n\t\n\t return box;\n\t}\n\t\n\t/**\n\t * Creates a binary image of the current image\n\t */\n\tfunction binarizeImage() {\n\t _cv_utils2['default'].otsuThreshold(_currentImageWrapper, _binaryImageWrapper);\n\t _binaryImageWrapper.zeroBorder();\n\t if (_config.showCanvas) {\n\t _binaryImageWrapper.show(_canvasContainer.dom.binary, 255);\n\t }\n\t}\n\t\n\t/**\n\t * Iterate over the entire image\n\t * extract patches\n\t */\n\tfunction findPatches() {\n\t var i,\n\t j,\n\t x,\n\t y,\n\t moments,\n\t patchesFound = [],\n\t rasterizer,\n\t rasterResult,\n\t patch;\n\t for (i = 0; i < _numPatches.x; i++) {\n\t for (j = 0; j < _numPatches.y; j++) {\n\t\n\t x = _subImageWrapper.size.x * i;\n\t y = _subImageWrapper.size.y * j;\n\t\n\t // seperate parts\n\t skeletonize(x, y);\n\t\n\t // Rasterize, find individual bars\n\t _skelImageWrapper.zeroBorder();\n\t _array_helper2['default'].init(_labelImageWrapper.data, 0);\n\t rasterizer = _rasterizer2['default'].create(_skelImageWrapper, _labelImageWrapper);\n\t rasterResult = rasterizer.rasterize(0);\n\t\n\t if (_config.showLabels) {\n\t _labelImageWrapper.overlay(_canvasContainer.dom.binary, Math.floor(360 / rasterResult.count), { x: x, y: y });\n\t }\n\t\n\t // calculate moments from the skeletonized patch\n\t moments = _labelImageWrapper.moments(rasterResult.count);\n\t\n\t // extract eligible patches\n\t patchesFound = patchesFound.concat(describePatch(moments, [i, j], x, y));\n\t }\n\t }\n\t\n\t if (_config.showFoundPatches) {\n\t for (i = 0; i < patchesFound.length; i++) {\n\t patch = patchesFound[i];\n\t _image_debug2['default'].drawRect(patch.pos, _subImageWrapper.size, _canvasContainer.ctx.binary, { color: \"#99ff00\", lineWidth: 2 });\n\t }\n\t }\n\t\n\t return patchesFound;\n\t}\n\t\n\t/**\n\t * Finds those connected areas which contain at least 6 patches\n\t * and returns them ordered DESC by the number of contained patches\n\t * @param {Number} maxLabel\n\t */\n\tfunction findBiggestConnectedAreas(maxLabel) {\n\t var i,\n\t sum,\n\t labelHist = [],\n\t topLabels = [];\n\t\n\t for (i = 0; i < maxLabel; i++) {\n\t labelHist.push(0);\n\t }\n\t sum = _patchLabelGrid.data.length;\n\t while (sum--) {\n\t if (_patchLabelGrid.data[sum] > 0) {\n\t labelHist[_patchLabelGrid.data[sum] - 1]++;\n\t }\n\t }\n\t\n\t labelHist = labelHist.map(function (val, idx) {\n\t return {\n\t val: val,\n\t label: idx + 1\n\t };\n\t });\n\t\n\t labelHist.sort(function (a, b) {\n\t return b.val - a.val;\n\t });\n\t\n\t // extract top areas with at least 6 patches present\n\t topLabels = labelHist.filter(function (el) {\n\t return el.val >= 5;\n\t });\n\t\n\t return topLabels;\n\t}\n\t\n\t/**\n\t *\n\t */\n\tfunction findBoxes(topLabels, maxLabel) {\n\t var i,\n\t j,\n\t sum,\n\t patches = [],\n\t patch,\n\t box,\n\t boxes = [],\n\t hsv = [0, 1, 1],\n\t rgb = [0, 0, 0];\n\t\n\t for (i = 0; i < topLabels.length; i++) {\n\t sum = _patchLabelGrid.data.length;\n\t patches.length = 0;\n\t while (sum--) {\n\t if (_patchLabelGrid.data[sum] === topLabels[i].label) {\n\t patch = _imageToPatchGrid.data[sum];\n\t patches.push(patch);\n\t }\n\t }\n\t box = boxFromPatches(patches);\n\t if (box) {\n\t boxes.push(box);\n\t\n\t // draw patch-labels if requested\n\t if (_config.showRemainingPatchLabels) {\n\t for (j = 0; j < patches.length; j++) {\n\t patch = patches[j];\n\t hsv[0] = topLabels[i].label / (maxLabel + 1) * 360;\n\t _cv_utils2['default'].hsv2rgb(hsv, rgb);\n\t _image_debug2['default'].drawRect(patch.pos, _subImageWrapper.size, _canvasContainer.ctx.binary, { color: \"rgb(\" + rgb.join(\",\") + \")\", lineWidth: 2 });\n\t }\n\t }\n\t }\n\t }\n\t return boxes;\n\t}\n\t\n\t/**\n\t * Find similar moments (via cluster)\n\t * @param {Object} moments\n\t */\n\tfunction similarMoments(moments) {\n\t var clusters = _cv_utils2['default'].cluster(moments, 0.90);\n\t var topCluster = _cv_utils2['default'].topGeneric(clusters, 1, function (e) {\n\t return e.getPoints().length;\n\t });\n\t var points = [],\n\t result = [];\n\t if (topCluster.length === 1) {\n\t points = topCluster[0].item.getPoints();\n\t for (var i = 0; i < points.length; i++) {\n\t result.push(points[i].point);\n\t }\n\t }\n\t return result;\n\t}\n\t\n\tfunction skeletonize(x, y) {\n\t _binaryImageWrapper.subImageAsCopy(_subImageWrapper, _cv_utils2['default'].imageRef(x, y));\n\t _skeletonizer.skeletonize();\n\t\n\t // Show skeleton if requested\n\t if (_config.showSkeleton) {\n\t _skelImageWrapper.overlay(_canvasContainer.dom.binary, 360, _cv_utils2['default'].imageRef(x, y));\n\t }\n\t}\n\t\n\t/**\n\t * Extracts and describes those patches which seem to contain a barcode pattern\n\t * @param {Array} moments\n\t * @param {Object} patchPos,\n\t * @param {Number} x\n\t * @param {Number} y\n\t * @returns {Array} list of patches\n\t */\n\tfunction describePatch(moments, patchPos, x, y) {\n\t var k,\n\t avg,\n\t sum = 0,\n\t eligibleMoments = [],\n\t matchingMoments,\n\t patch,\n\t patchesFound = [],\n\t minComponentWeight = Math.ceil(_patchSize.x / 3);\n\t\n\t if (moments.length >= 2) {\n\t // only collect moments which's area covers at least minComponentWeight pixels.\n\t for (k = 0; k < moments.length; k++) {\n\t if (moments[k].m00 > minComponentWeight) {\n\t eligibleMoments.push(moments[k]);\n\t }\n\t }\n\t\n\t // if at least 2 moments are found which have at least minComponentWeights covered\n\t if (eligibleMoments.length >= 2) {\n\t sum = eligibleMoments.length;\n\t matchingMoments = similarMoments(eligibleMoments);\n\t avg = 0;\n\t // determine the similarity of the moments\n\t for (k = 0; k < matchingMoments.length; k++) {\n\t avg += matchingMoments[k].rad;\n\t }\n\t\n\t // Only two of the moments are allowed not to fit into the equation\n\t // add the patch to the set\n\t if (matchingMoments.length > 1 && matchingMoments.length >= eligibleMoments.length / 4 * 3 && matchingMoments.length > moments.length / 4) {\n\t avg /= matchingMoments.length;\n\t patch = {\n\t index: patchPos[1] * _numPatches.x + patchPos[0],\n\t pos: {\n\t x: x,\n\t y: y\n\t },\n\t box: [vec2.clone([x, y]), vec2.clone([x + _subImageWrapper.size.x, y]), vec2.clone([x + _subImageWrapper.size.x, y + _subImageWrapper.size.y]), vec2.clone([x, y + _subImageWrapper.size.y])],\n\t moments: matchingMoments,\n\t rad: avg,\n\t vec: vec2.clone([Math.cos(avg), Math.sin(avg)])\n\t };\n\t patchesFound.push(patch);\n\t }\n\t }\n\t }\n\t return patchesFound;\n\t}\n\t\n\t/**\n\t * finds patches which are connected and share the same orientation\n\t * @param {Object} patchesFound\n\t */\n\tfunction rasterizeAngularSimilarity(patchesFound) {\n\t var label = 0,\n\t threshold = 0.95,\n\t currIdx = 0,\n\t j,\n\t patch,\n\t hsv = [0, 1, 1],\n\t rgb = [0, 0, 0];\n\t\n\t function notYetProcessed() {\n\t var i;\n\t for (i = 0; i < _patchLabelGrid.data.length; i++) {\n\t if (_patchLabelGrid.data[i] === 0 && _patchGrid.data[i] === 1) {\n\t return i;\n\t }\n\t }\n\t return _patchLabelGrid.length;\n\t }\n\t\n\t function trace(currentIdx) {\n\t var x,\n\t y,\n\t currentPatch,\n\t patch,\n\t idx,\n\t dir,\n\t current = {\n\t x: currentIdx % _patchLabelGrid.size.x,\n\t y: currentIdx / _patchLabelGrid.size.x | 0\n\t },\n\t similarity;\n\t\n\t if (currentIdx < _patchLabelGrid.data.length) {\n\t currentPatch = _imageToPatchGrid.data[currentIdx];\n\t // assign label\n\t _patchLabelGrid.data[currentIdx] = label;\n\t for (dir = 0; dir < _tracer2['default'].searchDirections.length; dir++) {\n\t y = current.y + _tracer2['default'].searchDirections[dir][0];\n\t x = current.x + _tracer2['default'].searchDirections[dir][1];\n\t idx = y * _patchLabelGrid.size.x + x;\n\t\n\t // continue if patch empty\n\t if (_patchGrid.data[idx] === 0) {\n\t _patchLabelGrid.data[idx] = Number.MAX_VALUE;\n\t continue;\n\t }\n\t\n\t patch = _imageToPatchGrid.data[idx];\n\t if (_patchLabelGrid.data[idx] === 0) {\n\t similarity = Math.abs(vec2.dot(patch.vec, currentPatch.vec));\n\t if (similarity > threshold) {\n\t trace(idx);\n\t }\n\t }\n\t }\n\t }\n\t }\n\t\n\t // prepare for finding the right patches\n\t _array_helper2['default'].init(_patchGrid.data, 0);\n\t _array_helper2['default'].init(_patchLabelGrid.data, 0);\n\t _array_helper2['default'].init(_imageToPatchGrid.data, null);\n\t\n\t for (j = 0; j < patchesFound.length; j++) {\n\t patch = patchesFound[j];\n\t _imageToPatchGrid.data[patch.index] = patch;\n\t _patchGrid.data[patch.index] = 1;\n\t }\n\t\n\t // rasterize the patches found to determine area\n\t _patchGrid.zeroBorder();\n\t\n\t while ((currIdx = notYetProcessed()) < _patchLabelGrid.data.length) {\n\t label++;\n\t trace(currIdx);\n\t }\n\t\n\t // draw patch-labels if requested\n\t if (_config.showPatchLabels) {\n\t for (j = 0; j < _patchLabelGrid.data.length; j++) {\n\t if (_patchLabelGrid.data[j] > 0 && _patchLabelGrid.data[j] <= label) {\n\t patch = _imageToPatchGrid.data[j];\n\t hsv[0] = _patchLabelGrid.data[j] / (label + 1) * 360;\n\t _cv_utils2['default'].hsv2rgb(hsv, rgb);\n\t _image_debug2['default'].drawRect(patch.pos, _subImageWrapper.size, _canvasContainer.ctx.binary, { color: \"rgb(\" + rgb.join(\",\") + \")\", lineWidth: 2 });\n\t }\n\t }\n\t }\n\t\n\t return label;\n\t}\n\t\n\texports['default'] = {\n\t init: function init(inputImageWrapper, config) {\n\t _config = config;\n\t _inputImageWrapper = inputImageWrapper;\n\t\n\t initBuffers();\n\t initCanvas();\n\t },\n\t\n\t locate: function locate() {\n\t var patchesFound, topLabels, boxes;\n\t\n\t if (_config.halfSample) {\n\t _cv_utils2['default'].halfSample(_inputImageWrapper, _currentImageWrapper);\n\t }\n\t\n\t binarizeImage();\n\t patchesFound = findPatches();\n\t // return unless 5% or more patches are found\n\t if (patchesFound.length < _numPatches.x * _numPatches.y * 0.05) {\n\t return null;\n\t }\n\t\n\t // rasterrize area by comparing angular similarity;\n\t var maxLabel = rasterizeAngularSimilarity(patchesFound);\n\t if (maxLabel < 1) {\n\t return null;\n\t }\n\t\n\t // search for area with the most patches (biggest connected area)\n\t topLabels = findBiggestConnectedAreas(maxLabel);\n\t if (topLabels.length === 0) {\n\t return null;\n\t }\n\t\n\t boxes = findBoxes(topLabels, maxLabel);\n\t return boxes;\n\t },\n\t\n\t checkImageConstraints: function checkImageConstraints(inputStream, config) {\n\t var patchSize,\n\t width = inputStream.getWidth(),\n\t height = inputStream.getHeight(),\n\t halfSample = config.halfSample ? 0.5 : 1,\n\t size,\n\t area;\n\t\n\t // calculate width and height based on area\n\t if (inputStream.getConfig().area) {\n\t area = _cv_utils2['default'].computeImageArea(width, height, inputStream.getConfig().area);\n\t inputStream.setTopRight({ x: area.sx, y: area.sy });\n\t inputStream.setCanvasSize({ x: width, y: height });\n\t width = area.sw;\n\t height = area.sh;\n\t }\n\t\n\t size = {\n\t x: Math.floor(width * halfSample),\n\t y: Math.floor(height * halfSample)\n\t };\n\t\n\t patchSize = _cv_utils2['default'].calculatePatchSize(config.patchSize, size);\n\t console.log(\"Patch-Size: \" + JSON.stringify(patchSize));\n\t\n\t inputStream.setWidth(Math.floor(Math.floor(size.x / patchSize.x) * (1 / halfSample) * patchSize.x));\n\t inputStream.setHeight(Math.floor(Math.floor(size.y / patchSize.y) * (1 / halfSample) * patchSize.y));\n\t\n\t if (inputStream.getWidth() % patchSize.x === 0 && inputStream.getHeight() % patchSize.y === 0) {\n\t return true;\n\t }\n\t\n\t throw new Error(\"Image dimensions do not comply with the current settings: Width (\" + width + \" )and height (\" + height + \") must a multiple of \" + patchSize.x);\n\t }\n\t};\n\tmodule.exports = exports['default'];\n\n/***/ },\n/* 21 */\n/***/ function(module, exports, __webpack_require__) {\n\n\t\"use strict\";\n\t\n\tObject.defineProperty(exports, \"__esModule\", {\n\t value: true\n\t});\n\t\n\tfunction _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { \"default\": obj }; }\n\t\n\tvar _tracer = __webpack_require__(22);\n\t\n\tvar _tracer2 = _interopRequireDefault(_tracer);\n\t\n\t/**\n\t * http://www.codeproject.com/Tips/407172/Connected-Component-Labeling-and-Vectorization\n\t */\n\tvar Rasterizer = {\n\t createContour2D: function createContour2D() {\n\t return {\n\t dir: null,\n\t index: null,\n\t firstVertex: null,\n\t insideContours: null,\n\t nextpeer: null,\n\t prevpeer: null\n\t };\n\t },\n\t CONTOUR_DIR: {\n\t CW_DIR: 0,\n\t CCW_DIR: 1,\n\t UNKNOWN_DIR: 2\n\t },\n\t DIR: {\n\t OUTSIDE_EDGE: -32767,\n\t INSIDE_EDGE: -32766\n\t },\n\t create: function create(imageWrapper, labelWrapper) {\n\t var imageData = imageWrapper.data,\n\t labelData = labelWrapper.data,\n\t width = imageWrapper.size.x,\n\t height = imageWrapper.size.y,\n\t tracer = _tracer2[\"default\"].create(imageWrapper, labelWrapper);\n\t\n\t return {\n\t rasterize: function rasterize(depthlabel) {\n\t var color,\n\t bc,\n\t lc,\n\t labelindex,\n\t cx,\n\t cy,\n\t colorMap = [],\n\t vertex,\n\t p,\n\t cc,\n\t sc,\n\t pos,\n\t connectedCount = 0,\n\t i;\n\t\n\t for (i = 0; i < 400; i++) {\n\t colorMap[i] = 0;\n\t }\n\t\n\t colorMap[0] = imageData[0];\n\t cc = null;\n\t for (cy = 1; cy < height - 1; cy++) {\n\t labelindex = 0;\n\t bc = colorMap[0];\n\t for (cx = 1; cx < width - 1; cx++) {\n\t pos = cy * width + cx;\n\t if (labelData[pos] === 0) {\n\t color = imageData[pos];\n\t if (color !== bc) {\n\t if (labelindex === 0) {\n\t lc = connectedCount + 1;\n\t colorMap[lc] = color;\n\t bc = color;\n\t vertex = tracer.contourTracing(cy, cx, lc, color, Rasterizer.DIR.OUTSIDE_EDGE);\n\t if (vertex !== null) {\n\t connectedCount++;\n\t labelindex = lc;\n\t p = Rasterizer.createContour2D();\n\t p.dir = Rasterizer.CONTOUR_DIR.CW_DIR;\n\t p.index = labelindex;\n\t p.firstVertex = vertex;\n\t p.nextpeer = cc;\n\t p.insideContours = null;\n\t if (cc !== null) {\n\t cc.prevpeer = p;\n\t }\n\t cc = p;\n\t }\n\t } else {\n\t vertex = tracer.contourTracing(cy, cx, Rasterizer.DIR.INSIDE_EDGE, color, labelindex);\n\t if (vertex !== null) {\n\t p = Rasterizer.createContour2D();\n\t p.firstVertex = vertex;\n\t p.insideContours = null;\n\t if (depthlabel === 0) {\n\t p.dir = Rasterizer.CONTOUR_DIR.CCW_DIR;\n\t } else {\n\t p.dir = Rasterizer.CONTOUR_DIR.CW_DIR;\n\t }\n\t p.index = depthlabel;\n\t sc = cc;\n\t while (sc !== null && sc.index !== labelindex) {\n\t sc = sc.nextpeer;\n\t }\n\t if (sc !== null) {\n\t p.nextpeer = sc.insideContours;\n\t if (sc.insideContours !== null) {\n\t sc.insideContours.prevpeer = p;\n\t }\n\t sc.insideContours = p;\n\t }\n\t }\n\t }\n\t } else {\n\t labelData[pos] = labelindex;\n\t }\n\t } else if (labelData[pos] === Rasterizer.DIR.OUTSIDE_EDGE || labelData[pos] === Rasterizer.DIR.INSIDE_EDGE) {\n\t labelindex = 0;\n\t if (labelData[pos] === Rasterizer.DIR.INSIDE_EDGE) {\n\t bc = imageData[pos];\n\t } else {\n\t bc = colorMap[0];\n\t }\n\t } else {\n\t labelindex = labelData[pos];\n\t bc = colorMap[labelindex];\n\t }\n\t }\n\t }\n\t sc = cc;\n\t while (sc !== null) {\n\t sc.index = depthlabel;\n\t sc = sc.nextpeer;\n\t }\n\t return {\n\t cc: cc,\n\t count: connectedCount\n\t };\n\t },\n\t debug: {\n\t drawContour: function drawContour(canvas, firstContour) {\n\t var ctx = canvas.getContext(\"2d\"),\n\t pq = firstContour,\n\t iq,\n\t q,\n\t p;\n\t\n\t ctx.strokeStyle = \"red\";\n\t ctx.fillStyle = \"red\";\n\t ctx.lineWidth = 1;\n\t\n\t if (pq !== null) {\n\t iq = pq.insideContours;\n\t } else {\n\t iq = null;\n\t }\n\t\n\t while (pq !== null) {\n\t if (iq !== null) {\n\t q = iq;\n\t iq = iq.nextpeer;\n\t } else {\n\t q = pq;\n\t pq = pq.nextpeer;\n\t if (pq !== null) {\n\t iq = pq.insideContours;\n\t } else {\n\t iq = null;\n\t }\n\t }\n\t\n\t switch (q.dir) {\n\t case Rasterizer.CONTOUR_DIR.CW_DIR:\n\t ctx.strokeStyle = \"red\";\n\t break;\n\t case Rasterizer.CONTOUR_DIR.CCW_DIR:\n\t ctx.strokeStyle = \"blue\";\n\t break;\n\t case Rasterizer.CONTOUR_DIR.UNKNOWN_DIR:\n\t ctx.strokeStyle = \"green\";\n\t break;\n\t }\n\t\n\t p = q.firstVertex;\n\t ctx.beginPath();\n\t ctx.moveTo(p.x, p.y);\n\t do {\n\t p = p.next;\n\t ctx.lineTo(p.x, p.y);\n\t } while (p !== q.firstVertex);\n\t ctx.stroke();\n\t }\n\t }\n\t }\n\t };\n\t }\n\t};\n\t\n\texports[\"default\"] = Rasterizer;\n\tmodule.exports = exports[\"default\"];\n\n/***/ },\n/* 22 */\n/***/ function(module, exports) {\n\n\t/**\n\t * http://www.codeproject.com/Tips/407172/Connected-Component-Labeling-and-Vectorization\n\t */\n\t\"use strict\";\n\t\n\tObject.defineProperty(exports, \"__esModule\", {\n\t value: true\n\t});\n\tvar Tracer = {\n\t searchDirections: [[0, 1], [1, 1], [1, 0], [1, -1], [0, -1], [-1, -1], [-1, 0], [-1, 1]],\n\t create: function create(imageWrapper, labelWrapper) {\n\t var imageData = imageWrapper.data,\n\t labelData = labelWrapper.data,\n\t searchDirections = this.searchDirections,\n\t width = imageWrapper.size.x,\n\t pos;\n\t\n\t function _trace(current, color, label, edgelabel) {\n\t var i, y, x;\n\t\n\t for (i = 0; i < 7; i++) {\n\t y = current.cy + searchDirections[current.dir][0];\n\t x = current.cx + searchDirections[current.dir][1];\n\t pos = y * width + x;\n\t if (imageData[pos] === color && (labelData[pos] === 0 || labelData[pos] === label)) {\n\t labelData[pos] = label;\n\t current.cy = y;\n\t current.cx = x;\n\t return true;\n\t } else {\n\t if (labelData[pos] === 0) {\n\t labelData[pos] = edgelabel;\n\t }\n\t current.dir = (current.dir + 1) % 8;\n\t }\n\t }\n\t return false;\n\t }\n\t\n\t function vertex2D(x, y, dir) {\n\t return {\n\t dir: dir,\n\t x: x,\n\t y: y,\n\t next: null,\n\t prev: null\n\t };\n\t }\n\t\n\t function _contourTracing(sy, sx, label, color, edgelabel) {\n\t var Fv = null,\n\t Cv,\n\t P,\n\t ldir,\n\t current = {\n\t cx: sx,\n\t cy: sy,\n\t dir: 0\n\t };\n\t\n\t if (_trace(current, color, label, edgelabel)) {\n\t Fv = vertex2D(sx, sy, current.dir);\n\t Cv = Fv;\n\t ldir = current.dir;\n\t P = vertex2D(current.cx, current.cy, 0);\n\t P.prev = Cv;\n\t Cv.next = P;\n\t P.next = null;\n\t Cv = P;\n\t do {\n\t current.dir = (current.dir + 6) % 8;\n\t _trace(current, color, label, edgelabel);\n\t if (ldir != current.dir) {\n\t Cv.dir = current.dir;\n\t P = vertex2D(current.cx, current.cy, 0);\n\t P.prev = Cv;\n\t Cv.next = P;\n\t P.next = null;\n\t Cv = P;\n\t } else {\n\t Cv.dir = ldir;\n\t Cv.x = current.cx;\n\t Cv.y = current.cy;\n\t }\n\t ldir = current.dir;\n\t } while (current.cx != sx || current.cy != sy);\n\t Fv.prev = Cv.prev;\n\t Cv.prev.next = Fv;\n\t }\n\t return Fv;\n\t }\n\t\n\t return {\n\t trace: function trace(current, color, label, edgelabel) {\n\t return _trace(current, color, label, edgelabel);\n\t },\n\t contourTracing: function contourTracing(sy, sx, label, color, edgelabel) {\n\t return _contourTracing(sy, sx, label, color, edgelabel);\n\t }\n\t };\n\t }\n\t};\n\t\n\texports[\"default\"] = Tracer;\n\tmodule.exports = exports[\"default\"];\n\n/***/ },\n/* 23 */\n/***/ function(module, exports) {\n\n\t/* @preserve ASM BEGIN */\n\t\"use strict\";\n\t\n\tObject.defineProperty(exports, \"__esModule\", {\n\t value: true\n\t});\n\tfunction Skeletonizer(stdlib, foreign, buffer) {\n\t \"use asm\";\n\t\n\t var images = new stdlib.Uint8Array(buffer),\n\t size = foreign.size | 0,\n\t imul = stdlib.Math.imul;\n\t\n\t function erode(inImagePtr, outImagePtr) {\n\t inImagePtr = inImagePtr | 0;\n\t outImagePtr = outImagePtr | 0;\n\t\n\t var v = 0,\n\t u = 0,\n\t sum = 0,\n\t yStart1 = 0,\n\t yStart2 = 0,\n\t xStart1 = 0,\n\t xStart2 = 0,\n\t offset = 0;\n\t\n\t for (v = 1; (v | 0) < (size - 1 | 0); v = v + 1 | 0) {\n\t offset = offset + size | 0;\n\t for (u = 1; (u | 0) < (size - 1 | 0); u = u + 1 | 0) {\n\t yStart1 = offset - size | 0;\n\t yStart2 = offset + size | 0;\n\t xStart1 = u - 1 | 0;\n\t xStart2 = u + 1 | 0;\n\t sum = (images[inImagePtr + yStart1 + xStart1 | 0] | 0) + (images[inImagePtr + yStart1 + xStart2 | 0] | 0) + (images[inImagePtr + offset + u | 0] | 0) + (images[inImagePtr + yStart2 + xStart1 | 0] | 0) + (images[inImagePtr + yStart2 + xStart2 | 0] | 0) | 0;\n\t if ((sum | 0) == (5 | 0)) {\n\t images[outImagePtr + offset + u | 0] = 1;\n\t } else {\n\t images[outImagePtr + offset + u | 0] = 0;\n\t }\n\t }\n\t }\n\t return;\n\t }\n\t\n\t function subtract(aImagePtr, bImagePtr, outImagePtr) {\n\t aImagePtr = aImagePtr | 0;\n\t bImagePtr = bImagePtr | 0;\n\t outImagePtr = outImagePtr | 0;\n\t\n\t var length = 0;\n\t\n\t length = imul(size, size) | 0;\n\t\n\t while ((length | 0) > 0) {\n\t length = length - 1 | 0;\n\t images[outImagePtr + length | 0] = (images[aImagePtr + length | 0] | 0) - (images[bImagePtr + length | 0] | 0) | 0;\n\t }\n\t }\n\t\n\t function bitwiseOr(aImagePtr, bImagePtr, outImagePtr) {\n\t aImagePtr = aImagePtr | 0;\n\t bImagePtr = bImagePtr | 0;\n\t outImagePtr = outImagePtr | 0;\n\t\n\t var length = 0;\n\t\n\t length = imul(size, size) | 0;\n\t\n\t while ((length | 0) > 0) {\n\t length = length - 1 | 0;\n\t images[outImagePtr + length | 0] = images[aImagePtr + length | 0] | 0 | (images[bImagePtr + length | 0] | 0) | 0;\n\t }\n\t }\n\t\n\t function countNonZero(imagePtr) {\n\t imagePtr = imagePtr | 0;\n\t\n\t var sum = 0,\n\t length = 0;\n\t\n\t length = imul(size, size) | 0;\n\t\n\t while ((length | 0) > 0) {\n\t length = length - 1 | 0;\n\t sum = (sum | 0) + (images[imagePtr + length | 0] | 0) | 0;\n\t }\n\t\n\t return sum | 0;\n\t }\n\t\n\t function init(imagePtr, value) {\n\t imagePtr = imagePtr | 0;\n\t value = value | 0;\n\t\n\t var length = 0;\n\t\n\t length = imul(size, size) | 0;\n\t\n\t while ((length | 0) > 0) {\n\t length = length - 1 | 0;\n\t images[imagePtr + length | 0] = value;\n\t }\n\t }\n\t\n\t function dilate(inImagePtr, outImagePtr) {\n\t inImagePtr = inImagePtr | 0;\n\t outImagePtr = outImagePtr | 0;\n\t\n\t var v = 0,\n\t u = 0,\n\t sum = 0,\n\t yStart1 = 0,\n\t yStart2 = 0,\n\t xStart1 = 0,\n\t xStart2 = 0,\n\t offset = 0;\n\t\n\t for (v = 1; (v | 0) < (size - 1 | 0); v = v + 1 | 0) {\n\t offset = offset + size | 0;\n\t for (u = 1; (u | 0) < (size - 1 | 0); u = u + 1 | 0) {\n\t yStart1 = offset - size | 0;\n\t yStart2 = offset + size | 0;\n\t xStart1 = u - 1 | 0;\n\t xStart2 = u + 1 | 0;\n\t sum = (images[inImagePtr + yStart1 + xStart1 | 0] | 0) + (images[inImagePtr + yStart1 + xStart2 | 0] | 0) + (images[inImagePtr + offset + u | 0] | 0) + (images[inImagePtr + yStart2 + xStart1 | 0] | 0) + (images[inImagePtr + yStart2 + xStart2 | 0] | 0) | 0;\n\t if ((sum | 0) > (0 | 0)) {\n\t images[outImagePtr + offset + u | 0] = 1;\n\t } else {\n\t images[outImagePtr + offset + u | 0] = 0;\n\t }\n\t }\n\t }\n\t return;\n\t }\n\t\n\t function memcpy(srcImagePtr, dstImagePtr) {\n\t srcImagePtr = srcImagePtr | 0;\n\t dstImagePtr = dstImagePtr | 0;\n\t\n\t var length = 0;\n\t\n\t length = imul(size, size) | 0;\n\t\n\t while ((length | 0) > 0) {\n\t length = length - 1 | 0;\n\t images[dstImagePtr + length | 0] = images[srcImagePtr + length | 0] | 0;\n\t }\n\t }\n\t\n\t function zeroBorder(imagePtr) {\n\t imagePtr = imagePtr | 0;\n\t\n\t var x = 0,\n\t y = 0;\n\t\n\t for (x = 0; (x | 0) < (size - 1 | 0); x = x + 1 | 0) {\n\t images[imagePtr + x | 0] = 0;\n\t images[imagePtr + y | 0] = 0;\n\t y = y + size - 1 | 0;\n\t images[imagePtr + y | 0] = 0;\n\t y = y + 1 | 0;\n\t }\n\t for (x = 0; (x | 0) < (size | 0); x = x + 1 | 0) {\n\t images[imagePtr + y | 0] = 0;\n\t y = y + 1 | 0;\n\t }\n\t }\n\t\n\t function skeletonize() {\n\t var subImagePtr = 0,\n\t erodedImagePtr = 0,\n\t tempImagePtr = 0,\n\t skelImagePtr = 0,\n\t sum = 0,\n\t done = 0;\n\t\n\t erodedImagePtr = imul(size, size) | 0;\n\t tempImagePtr = erodedImagePtr + erodedImagePtr | 0;\n\t skelImagePtr = tempImagePtr + erodedImagePtr | 0;\n\t\n\t // init skel-image\n\t init(skelImagePtr, 0);\n\t zeroBorder(subImagePtr);\n\t\n\t do {\n\t erode(subImagePtr, erodedImagePtr);\n\t dilate(erodedImagePtr, tempImagePtr);\n\t subtract(subImagePtr, tempImagePtr, tempImagePtr);\n\t bitwiseOr(skelImagePtr, tempImagePtr, skelImagePtr);\n\t memcpy(erodedImagePtr, subImagePtr);\n\t sum = countNonZero(subImagePtr) | 0;\n\t done = (sum | 0) == 0 | 0;\n\t } while (!done);\n\t }\n\t\n\t return {\n\t skeletonize: skeletonize\n\t };\n\t}\n\t/* @preserve ASM END */\n\t\n\texports[\"default\"] = Skeletonizer;\n\tmodule.exports = exports[\"default\"];\n\n/***/ },\n/* 24 */\n/***/ function(module, exports) {\n\n\t\"use strict\";\n\t\n\tObject.defineProperty(exports, \"__esModule\", {\n\t value: true\n\t});\n\texports[\"default\"] = {\n\t drawRect: function drawRect(pos, size, ctx, style) {\n\t ctx.strokeStyle = style.color;\n\t ctx.fillStyle = style.color;\n\t ctx.lineWidth = 1;\n\t ctx.beginPath();\n\t ctx.strokeRect(pos.x, pos.y, size.x, size.y);\n\t },\n\t drawPath: function drawPath(path, def, ctx, style) {\n\t ctx.strokeStyle = style.color;\n\t ctx.fillStyle = style.color;\n\t ctx.lineWidth = style.lineWidth;\n\t ctx.beginPath();\n\t ctx.moveTo(path[0][def.x], path[0][def.y]);\n\t for (var j = 1; j < path.length; j++) {\n\t ctx.lineTo(path[j][def.x], path[j][def.y]);\n\t }\n\t ctx.closePath();\n\t ctx.stroke();\n\t },\n\t drawImage: function drawImage(imageData, size, ctx) {\n\t var canvasData = ctx.getImageData(0, 0, size.x, size.y),\n\t data = canvasData.data,\n\t imageDataPos = imageData.length,\n\t canvasDataPos = data.length,\n\t value;\n\t\n\t if (canvasDataPos / imageDataPos !== 4) {\n\t return false;\n\t }\n\t while (imageDataPos--) {\n\t value = imageData[imageDataPos];\n\t data[--canvasDataPos] = 255;\n\t data[--canvasDataPos] = value;\n\t data[--canvasDataPos] = value;\n\t data[--canvasDataPos] = value;\n\t }\n\t ctx.putImageData(canvasData, 0, 0);\n\t return true;\n\t }\n\t};\n\tmodule.exports = exports[\"default\"];\n\n/***/ },\n/* 25 */\n/***/ function(module, exports, __webpack_require__) {\n\n\t'use strict';\n\t\n\tObject.defineProperty(exports, '__esModule', {\n\t value: true\n\t});\n\t\n\tfunction _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }\n\t\n\tvar _bresenham = __webpack_require__(26);\n\t\n\tvar _bresenham2 = _interopRequireDefault(_bresenham);\n\t\n\tvar _image_debug = __webpack_require__(24);\n\t\n\tvar _image_debug2 = _interopRequireDefault(_image_debug);\n\t\n\tvar _code_128_reader = __webpack_require__(27);\n\t\n\tvar _code_128_reader2 = _interopRequireDefault(_code_128_reader);\n\t\n\tvar _ean_reader = __webpack_require__(29);\n\t\n\tvar _ean_reader2 = _interopRequireDefault(_ean_reader);\n\t\n\tvar _code_39_reader = __webpack_require__(30);\n\t\n\tvar _code_39_reader2 = _interopRequireDefault(_code_39_reader);\n\t\n\tvar _code_39_vin_reader = __webpack_require__(31);\n\t\n\tvar _code_39_vin_reader2 = _interopRequireDefault(_code_39_vin_reader);\n\t\n\tvar _codabar_reader = __webpack_require__(32);\n\t\n\tvar _codabar_reader2 = _interopRequireDefault(_codabar_reader);\n\t\n\tvar _upc_reader = __webpack_require__(33);\n\t\n\tvar _upc_reader2 = _interopRequireDefault(_upc_reader);\n\t\n\tvar _ean_8_reader = __webpack_require__(34);\n\t\n\tvar _ean_8_reader2 = _interopRequireDefault(_ean_8_reader);\n\t\n\tvar _upc_e_reader = __webpack_require__(35);\n\t\n\tvar _upc_e_reader2 = _interopRequireDefault(_upc_e_reader);\n\t\n\tvar _i2of5_reader = __webpack_require__(36);\n\t\n\tvar _i2of5_reader2 = _interopRequireDefault(_i2of5_reader);\n\t\n\tvar readers = {\n\t code_128_reader: _code_128_reader2['default'],\n\t ean_reader: _ean_reader2['default'],\n\t ean_8_reader: _ean_8_reader2['default'],\n\t code_39_reader: _code_39_reader2['default'],\n\t code_39_vin_reader: _code_39_vin_reader2['default'],\n\t codabar_reader: _codabar_reader2['default'],\n\t upc_reader: _upc_reader2['default'],\n\t upc_e_reader: _upc_e_reader2['default'],\n\t i2of5_reader: _i2of5_reader2['default']\n\t};\n\texports['default'] = {\n\t create: function create(config, inputImageWrapper) {\n\t var _canvas = {\n\t ctx: {\n\t frequency: null,\n\t pattern: null,\n\t overlay: null\n\t },\n\t dom: {\n\t frequency: null,\n\t pattern: null,\n\t overlay: null\n\t }\n\t },\n\t _barcodeReaders = [];\n\t\n\t initCanvas();\n\t initReaders();\n\t initConfig();\n\t\n\t function initCanvas() {\n\t if (typeof document !== 'undefined') {\n\t var $debug = document.querySelector(\"#debug.detection\");\n\t _canvas.dom.frequency = document.querySelector(\"canvas.frequency\");\n\t if (!_canvas.dom.frequency) {\n\t _canvas.dom.frequency = document.createElement(\"canvas\");\n\t _canvas.dom.frequency.className = \"frequency\";\n\t if ($debug) {\n\t $debug.appendChild(_canvas.dom.frequency);\n\t }\n\t }\n\t _canvas.ctx.frequency = _canvas.dom.frequency.getContext(\"2d\");\n\t\n\t _canvas.dom.pattern = document.querySelector(\"canvas.patternBuffer\");\n\t if (!_canvas.dom.pattern) {\n\t _canvas.dom.pattern = document.createElement(\"canvas\");\n\t _canvas.dom.pattern.className = \"patternBuffer\";\n\t if ($debug) {\n\t $debug.appendChild(_canvas.dom.pattern);\n\t }\n\t }\n\t _canvas.ctx.pattern = _canvas.dom.pattern.getContext(\"2d\");\n\t\n\t _canvas.dom.overlay = document.querySelector(\"canvas.drawingBuffer\");\n\t if (_canvas.dom.overlay) {\n\t _canvas.ctx.overlay = _canvas.dom.overlay.getContext(\"2d\");\n\t }\n\t }\n\t }\n\t\n\t function initReaders() {\n\t config.readers.forEach(function (readerConfig) {\n\t var reader,\n\t config = {};\n\t\n\t if (typeof readerConfig === 'object') {\n\t reader = readerConfig.format;\n\t config = readerConfig.config;\n\t } else if (typeof readerConfig === 'string') {\n\t reader = readerConfig;\n\t }\n\t _barcodeReaders.push(new readers[reader](config));\n\t });\n\t console.log(\"Registered Readers: \" + _barcodeReaders.map(function (reader) {\n\t return JSON.stringify({ format: reader.FORMAT, config: reader.config });\n\t }).join(', '));\n\t }\n\t\n\t function initConfig() {\n\t if (typeof document !== 'undefined') {\n\t var i,\n\t vis = [{\n\t node: _canvas.dom.frequency,\n\t prop: config.showFrequency\n\t }, {\n\t node: _canvas.dom.pattern,\n\t prop: config.showPattern\n\t }];\n\t\n\t for (i = 0; i < vis.length; i++) {\n\t if (vis[i].prop === true) {\n\t vis[i].node.style.display = \"block\";\n\t } else {\n\t vis[i].node.style.display = \"none\";\n\t }\n\t }\n\t }\n\t }\n\t\n\t /**\n\t * extend the line on both ends\n\t * @param {Array} line\n\t * @param {Number} angle\n\t */\n\t function getExtendedLine(line, angle, ext) {\n\t function extendLine(amount) {\n\t var extension = {\n\t y: amount * Math.sin(angle),\n\t x: amount * Math.cos(angle)\n\t };\n\t\n\t line[0].y -= extension.y;\n\t line[0].x -= extension.x;\n\t line[1].y += extension.y;\n\t line[1].x += extension.x;\n\t }\n\t\n\t // check if inside image\n\t extendLine(ext);\n\t while (ext > 1 && (!inputImageWrapper.inImageWithBorder(line[0], 0) || !inputImageWrapper.inImageWithBorder(line[1], 0))) {\n\t ext -= Math.ceil(ext / 2);\n\t extendLine(-ext);\n\t }\n\t return line;\n\t }\n\t\n\t function getLine(box) {\n\t return [{\n\t x: (box[1][0] - box[0][0]) / 2 + box[0][0],\n\t y: (box[1][1] - box[0][1]) / 2 + box[0][1]\n\t }, {\n\t x: (box[3][0] - box[2][0]) / 2 + box[2][0],\n\t y: (box[3][1] - box[2][1]) / 2 + box[2][1]\n\t }];\n\t }\n\t\n\t function tryDecode(line) {\n\t var result = null,\n\t i,\n\t barcodeLine = _bresenham2['default'].getBarcodeLine(inputImageWrapper, line[0], line[1]);\n\t\n\t if (config.showFrequency) {\n\t _image_debug2['default'].drawPath(line, { x: 'x', y: 'y' }, _canvas.ctx.overlay, { color: 'red', lineWidth: 3 });\n\t _bresenham2['default'].debug.printFrequency(barcodeLine.line, _canvas.dom.frequency);\n\t }\n\t _bresenham2['default'].toBinaryLine(barcodeLine);\n\t if (config.showPattern) {\n\t _bresenham2['default'].debug.printPattern(barcodeLine.line, _canvas.dom.pattern);\n\t }\n\t\n\t for (i = 0; i < _barcodeReaders.length && result === null; i++) {\n\t result = _barcodeReaders[i].decodePattern(barcodeLine.line);\n\t }\n\t if (result === null) {\n\t return null;\n\t }\n\t return {\n\t codeResult: result,\n\t barcodeLine: barcodeLine\n\t };\n\t }\n\t\n\t /**\n\t * This method slices the given area apart and tries to detect a barcode-pattern\n\t * for each slice. It returns the decoded barcode, or null if nothing was found\n\t * @param {Array} box\n\t * @param {Array} line\n\t * @param {Number} lineAngle\n\t */\n\t function tryDecodeBruteForce(box, line, lineAngle) {\n\t var sideLength = Math.sqrt(Math.pow(box[1][0] - box[0][0], 2) + Math.pow(box[1][1] - box[0][1], 2)),\n\t i,\n\t slices = 16,\n\t result = null,\n\t dir,\n\t extension,\n\t xdir = Math.sin(lineAngle),\n\t ydir = Math.cos(lineAngle);\n\t\n\t for (i = 1; i < slices && result === null; i++) {\n\t // move line perpendicular to angle\n\t dir = sideLength / slices * i * (i % 2 === 0 ? -1 : 1);\n\t extension = {\n\t y: dir * xdir,\n\t x: dir * ydir\n\t };\n\t line[0].y += extension.x;\n\t line[0].x -= extension.y;\n\t line[1].y += extension.x;\n\t line[1].x -= extension.y;\n\t\n\t result = tryDecode(line);\n\t }\n\t return result;\n\t }\n\t\n\t function getLineLength(line) {\n\t return Math.sqrt(Math.pow(Math.abs(line[1].y - line[0].y), 2) + Math.pow(Math.abs(line[1].x - line[0].x), 2));\n\t }\n\t\n\t /**\n\t * With the help of the configured readers (Code128 or EAN) this function tries to detect a\n\t * valid barcode pattern within the given area.\n\t * @param {Object} box The area to search in\n\t * @returns {Object} the result {codeResult, line, angle, pattern, threshold}\n\t */\n\t function _decodeFromBoundingBox(box) {\n\t var line,\n\t lineAngle,\n\t ctx = _canvas.ctx.overlay,\n\t result,\n\t lineLength;\n\t\n\t if (config.drawBoundingBox && ctx) {\n\t _image_debug2['default'].drawPath(box, { x: 0, y: 1 }, ctx, { color: \"blue\", lineWidth: 2 });\n\t }\n\t\n\t line = getLine(box);\n\t lineLength = getLineLength(line);\n\t lineAngle = Math.atan2(line[1].y - line[0].y, line[1].x - line[0].x);\n\t line = getExtendedLine(line, lineAngle, Math.floor(lineLength * 0.1));\n\t if (line === null) {\n\t return null;\n\t }\n\t\n\t result = tryDecode(line);\n\t if (result === null) {\n\t result = tryDecodeBruteForce(box, line, lineAngle);\n\t }\n\t\n\t if (result === null) {\n\t return null;\n\t }\n\t\n\t if (result && config.drawScanline && ctx) {\n\t _image_debug2['default'].drawPath(line, { x: 'x', y: 'y' }, ctx, { color: 'red', lineWidth: 3 });\n\t }\n\t\n\t return {\n\t codeResult: result.codeResult,\n\t line: line,\n\t angle: lineAngle,\n\t pattern: result.barcodeLine.line,\n\t threshold: result.barcodeLine.threshold\n\t };\n\t }\n\t\n\t return {\n\t decodeFromBoundingBox: function decodeFromBoundingBox(box) {\n\t return _decodeFromBoundingBox(box);\n\t },\n\t decodeFromBoundingBoxes: function decodeFromBoundingBoxes(boxes) {\n\t var i, result;\n\t for (i = 0; i < boxes.length; i++) {\n\t result = _decodeFromBoundingBox(boxes[i]);\n\t if (result && result.codeResult) {\n\t result.box = boxes[i];\n\t return result;\n\t }\n\t }\n\t },\n\t setReaders: function setReaders(readers) {\n\t config.readers = readers;\n\t _barcodeReaders.length = 0;\n\t initReaders();\n\t }\n\t };\n\t }\n\t};\n\tmodule.exports = exports['default'];\n\n/***/ },\n/* 26 */\n/***/ function(module, exports, __webpack_require__) {\n\n\t'use strict';\n\t\n\tObject.defineProperty(exports, '__esModule', {\n\t value: true\n\t});\n\t\n\tfunction _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }\n\t\n\tvar _cv_utils = __webpack_require__(7);\n\t\n\tvar _cv_utils2 = _interopRequireDefault(_cv_utils);\n\t\n\tvar _image_wrapper = __webpack_require__(5);\n\t\n\tvar _image_wrapper2 = _interopRequireDefault(_image_wrapper);\n\t\n\tvar Bresenham = {};\n\t\n\tvar Slope = {\n\t DIR: {\n\t UP: 1,\n\t DOWN: -1\n\t }\n\t};\n\t/**\n\t * Scans a line of the given image from point p1 to p2 and returns a result object containing\n\t * gray-scale values (0-255) of the underlying pixels in addition to the min\n\t * and max values.\n\t * @param {Object} imageWrapper\n\t * @param {Object} p1 The start point {x,y}\n\t * @param {Object} p2 The end point {x,y}\n\t * @returns {line, min, max}\n\t */\n\tBresenham.getBarcodeLine = function (imageWrapper, p1, p2) {\n\t var x0 = p1.x | 0,\n\t y0 = p1.y | 0,\n\t x1 = p2.x | 0,\n\t y1 = p2.y | 0,\n\t steep = Math.abs(y1 - y0) > Math.abs(x1 - x0),\n\t deltax,\n\t deltay,\n\t error,\n\t ystep,\n\t y,\n\t tmp,\n\t x,\n\t line = [],\n\t imageData = imageWrapper.data,\n\t width = imageWrapper.size.x,\n\t sum = 0,\n\t val,\n\t min = 255,\n\t max = 0;\n\t\n\t function read(a, b) {\n\t val = imageData[b * width + a];\n\t sum += val;\n\t min = val < min ? val : min;\n\t max = val > max ? val : max;\n\t line.push(val);\n\t }\n\t\n\t if (steep) {\n\t tmp = x0;\n\t x0 = y0;\n\t y0 = tmp;\n\t\n\t tmp = x1;\n\t x1 = y1;\n\t y1 = tmp;\n\t }\n\t if (x0 > x1) {\n\t tmp = x0;\n\t x0 = x1;\n\t x1 = tmp;\n\t\n\t tmp = y0;\n\t y0 = y1;\n\t y1 = tmp;\n\t }\n\t deltax = x1 - x0;\n\t deltay = Math.abs(y1 - y0);\n\t error = deltax / 2 | 0;\n\t y = y0;\n\t ystep = y0 < y1 ? 1 : -1;\n\t for (x = x0; x < x1; x++) {\n\t if (steep) {\n\t read(y, x);\n\t } else {\n\t read(x, y);\n\t }\n\t error = error - deltay;\n\t if (error < 0) {\n\t y = y + ystep;\n\t error = error + deltax;\n\t }\n\t }\n\t\n\t return {\n\t line: line,\n\t min: min,\n\t max: max\n\t };\n\t};\n\t\n\tBresenham.toOtsuBinaryLine = function (result) {\n\t var line = result.line,\n\t image = new _image_wrapper2['default']({ x: line.length - 1, y: 1 }, line),\n\t threshold = _cv_utils2['default'].determineOtsuThreshold(image, 5);\n\t\n\t line = _cv_utils2['default'].sharpenLine(line);\n\t _cv_utils2['default'].thresholdImage(image, threshold);\n\t\n\t return {\n\t line: line,\n\t threshold: threshold\n\t };\n\t};\n\t\n\t/**\n\t * Converts the result from getBarcodeLine into a binary representation\n\t * also considering the frequency and slope of the signal for more robust results\n\t * @param {Object} result {line, min, max}\n\t */\n\tBresenham.toBinaryLine = function (result) {\n\t\n\t var min = result.min,\n\t max = result.max,\n\t line = result.line,\n\t slope,\n\t slope2,\n\t center = min + (max - min) / 2,\n\t extrema = [],\n\t currentDir,\n\t dir,\n\t threshold = (max - min) / 12,\n\t rThreshold = -threshold,\n\t i,\n\t j;\n\t\n\t // 1. find extrema\n\t currentDir = line[0] > center ? Slope.DIR.UP : Slope.DIR.DOWN;\n\t extrema.push({\n\t pos: 0,\n\t val: line[0]\n\t });\n\t for (i = 0; i < line.length - 2; i++) {\n\t slope = line[i + 1] - line[i];\n\t slope2 = line[i + 2] - line[i + 1];\n\t if (slope + slope2 < rThreshold && line[i + 1] < center * 1.5) {\n\t dir = Slope.DIR.DOWN;\n\t } else if (slope + slope2 > threshold && line[i + 1] > center * 0.5) {\n\t dir = Slope.DIR.UP;\n\t } else {\n\t dir = currentDir;\n\t }\n\t\n\t if (currentDir !== dir) {\n\t extrema.push({\n\t pos: i,\n\t val: line[i]\n\t });\n\t currentDir = dir;\n\t }\n\t }\n\t extrema.push({\n\t pos: line.length,\n\t val: line[line.length - 1]\n\t });\n\t\n\t for (j = extrema[0].pos; j < extrema[1].pos; j++) {\n\t line[j] = line[j] > center ? 0 : 1;\n\t }\n\t\n\t // iterate over extrema and convert to binary based on avg between minmax\n\t for (i = 1; i < extrema.length - 1; i++) {\n\t if (extrema[i + 1].val > extrema[i].val) {\n\t threshold = extrema[i].val + (extrema[i + 1].val - extrema[i].val) / 3 * 2 | 0;\n\t } else {\n\t threshold = extrema[i + 1].val + (extrema[i].val - extrema[i + 1].val) / 3 | 0;\n\t }\n\t\n\t for (j = extrema[i].pos; j < extrema[i + 1].pos; j++) {\n\t line[j] = line[j] > threshold ? 0 : 1;\n\t }\n\t }\n\t\n\t return {\n\t line: line,\n\t threshold: threshold\n\t };\n\t};\n\t\n\t/**\n\t * Used for development only\n\t */\n\tBresenham.debug = {\n\t printFrequency: function printFrequency(line, canvas) {\n\t var i,\n\t ctx = canvas.getContext(\"2d\");\n\t canvas.width = line.length;\n\t canvas.height = 256;\n\t\n\t ctx.beginPath();\n\t ctx.strokeStyle = \"blue\";\n\t for (i = 0; i < line.length; i++) {\n\t ctx.moveTo(i, 255);\n\t ctx.lineTo(i, 255 - line[i]);\n\t }\n\t ctx.stroke();\n\t ctx.closePath();\n\t },\n\t\n\t printPattern: function printPattern(line, canvas) {\n\t var ctx = canvas.getContext(\"2d\"),\n\t i;\n\t\n\t canvas.width = line.length;\n\t ctx.fillColor = \"black\";\n\t for (i = 0; i < line.length; i++) {\n\t if (line[i] === 1) {\n\t ctx.fillRect(i, 0, 1, 100);\n\t }\n\t }\n\t }\n\t};\n\t\n\texports['default'] = Bresenham;\n\tmodule.exports = exports['default'];\n\n/***/ },\n/* 27 */\n/***/ function(module, exports, __webpack_require__) {\n\n\t\"use strict\";\n\t\n\tObject.defineProperty(exports, \"__esModule\", {\n\t value: true\n\t});\n\t\n\tfunction _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { \"default\": obj }; }\n\t\n\tvar _barcode_reader = __webpack_require__(28);\n\t\n\tvar _barcode_reader2 = _interopRequireDefault(_barcode_reader);\n\t\n\tfunction Code128Reader() {\n\t _barcode_reader2[\"default\"].call(this);\n\t}\n\t\n\tvar properties = {\n\t CODE_SHIFT: { value: 98 },\n\t CODE_C: { value: 99 },\n\t CODE_B: { value: 100 },\n\t CODE_A: { value: 101 },\n\t START_CODE_A: { value: 103 },\n\t START_CODE_B: { value: 104 },\n\t START_CODE_C: { value: 105 },\n\t STOP_CODE: { value: 106 },\n\t MODULO: { value: 11 },\n\t CODE_PATTERN: { value: [[2, 1, 2, 2, 2, 2], [2, 2, 2, 1, 2, 2], [2, 2, 2, 2, 2, 1], [1, 2, 1, 2, 2, 3], [1, 2, 1, 3, 2, 2], [1, 3, 1, 2, 2, 2], [1, 2, 2, 2, 1, 3], [1, 2, 2, 3, 1, 2], [1, 3, 2, 2, 1, 2], [2, 2, 1, 2, 1, 3], [2, 2, 1, 3, 1, 2], [2, 3, 1, 2, 1, 2], [1, 1, 2, 2, 3, 2], [1, 2, 2, 1, 3, 2], [1, 2, 2, 2, 3, 1], [1, 1, 3, 2, 2, 2], [1, 2, 3, 1, 2, 2], [1, 2, 3, 2, 2, 1], [2, 2, 3, 2, 1, 1], [2, 2, 1, 1, 3, 2], [2, 2, 1, 2, 3, 1], [2, 1, 3, 2, 1, 2], [2, 2, 3, 1, 1, 2], [3, 1, 2, 1, 3, 1], [3, 1, 1, 2, 2, 2], [3, 2, 1, 1, 2, 2], [3, 2, 1, 2, 2, 1], [3, 1, 2, 2, 1, 2], [3, 2, 2, 1, 1, 2], [3, 2, 2, 2, 1, 1], [2, 1, 2, 1, 2, 3], [2, 1, 2, 3, 2, 1], [2, 3, 2, 1, 2, 1], [1, 1, 1, 3, 2, 3], [1, 3, 1, 1, 2, 3], [1, 3, 1, 3, 2, 1], [1, 1, 2, 3, 1, 3], [1, 3, 2, 1, 1, 3], [1, 3, 2, 3, 1, 1], [2, 1, 1, 3, 1, 3], [2, 3, 1, 1, 1, 3], [2, 3, 1, 3, 1, 1], [1, 1, 2, 1, 3, 3], [1, 1, 2, 3, 3, 1], [1, 3, 2, 1, 3, 1], [1, 1, 3, 1, 2, 3], [1, 1, 3, 3, 2, 1], [1, 3, 3, 1, 2, 1], [3, 1, 3, 1, 2, 1], [2, 1, 1, 3, 3, 1], [2, 3, 1, 1, 3, 1], [2, 1, 3, 1, 1, 3], [2, 1, 3, 3, 1, 1], [2, 1, 3, 1, 3, 1], [3, 1, 1, 1, 2, 3], [3, 1, 1, 3, 2, 1], [3, 3, 1, 1, 2, 1], [3, 1, 2, 1, 1, 3], [3, 1, 2, 3, 1, 1], [3, 3, 2, 1, 1, 1], [3, 1, 4, 1, 1, 1], [2, 2, 1, 4, 1, 1], [4, 3, 1, 1, 1, 1], [1, 1, 1, 2, 2, 4], [1, 1, 1, 4, 2, 2], [1, 2, 1, 1, 2, 4], [1, 2, 1, 4, 2, 1], [1, 4, 1, 1, 2, 2], [1, 4, 1, 2, 2, 1], [1, 1, 2, 2, 1, 4], [1, 1, 2, 4, 1, 2], [1, 2, 2, 1, 1, 4], [1, 2, 2, 4, 1, 1], [1, 4, 2, 1, 1, 2], [1, 4, 2, 2, 1, 1], [2, 4, 1, 2, 1, 1], [2, 2, 1, 1, 1, 4], [4, 1, 3, 1, 1, 1], [2, 4, 1, 1, 1, 2], [1, 3, 4, 1, 1, 1], [1, 1, 1, 2, 4, 2], [1, 2, 1, 1, 4, 2], [1, 2, 1, 2, 4, 1], [1, 1, 4, 2, 1, 2], [1, 2, 4, 1, 1, 2], [1, 2, 4, 2, 1, 1], [4, 1, 1, 2, 1, 2], [4, 2, 1, 1, 1, 2], [4, 2, 1, 2, 1, 1], [2, 1, 2, 1, 4, 1], [2, 1, 4, 1, 2, 1], [4, 1, 2, 1, 2, 1], [1, 1, 1, 1, 4, 3], [1, 1, 1, 3, 4, 1], [1, 3, 1, 1, 4, 1], [1, 1, 4, 1, 1, 3], [1, 1, 4, 3, 1, 1], [4, 1, 1, 1, 1, 3], [4, 1, 1, 3, 1, 1], [1, 1, 3, 1, 4, 1], [1, 1, 4, 1, 3, 1], [3, 1, 1, 1, 4, 1], [4, 1, 1, 1, 3, 1], [2, 1, 1, 4, 1, 2], [2, 1, 1, 2, 1, 4], [2, 1, 1, 2, 3, 2], [2, 3, 3, 1, 1, 1, 2]] },\n\t SINGLE_CODE_ERROR: { value: 1 },\n\t AVG_CODE_ERROR: { value: 0.5 },\n\t FORMAT: { value: \"code_128\", writeable: false }\n\t};\n\t\n\tCode128Reader.prototype = Object.create(_barcode_reader2[\"default\"].prototype, properties);\n\tCode128Reader.prototype.constructor = Code128Reader;\n\t\n\tCode128Reader.prototype._decodeCode = function (start) {\n\t var counter = [0, 0, 0, 0, 0, 0],\n\t i,\n\t self = this,\n\t offset = start,\n\t isWhite = !self._row[offset],\n\t counterPos = 0,\n\t bestMatch = {\n\t error: Number.MAX_VALUE,\n\t code: -1,\n\t start: start,\n\t end: start\n\t },\n\t code,\n\t error,\n\t normalized;\n\t\n\t for (i = offset; i < self._row.length; i++) {\n\t if (self._row[i] ^ isWhite) {\n\t counter[counterPos]++;\n\t } else {\n\t if (counterPos === counter.length - 1) {\n\t normalized = self._normalize(counter);\n\t if (normalized) {\n\t for (code = 0; code < self.CODE_PATTERN.length; code++) {\n\t error = self._matchPattern(normalized, self.CODE_PATTERN[code]);\n\t if (error < bestMatch.error) {\n\t bestMatch.code = code;\n\t bestMatch.error = error;\n\t }\n\t }\n\t bestMatch.end = i;\n\t return bestMatch;\n\t }\n\t } else {\n\t counterPos++;\n\t }\n\t counter[counterPos] = 1;\n\t isWhite = !isWhite;\n\t }\n\t }\n\t return null;\n\t};\n\t\n\tCode128Reader.prototype._findStart = function () {\n\t var counter = [0, 0, 0, 0, 0, 0],\n\t i,\n\t self = this,\n\t offset = self._nextSet(self._row),\n\t isWhite = false,\n\t counterPos = 0,\n\t bestMatch = {\n\t error: Number.MAX_VALUE,\n\t code: -1,\n\t start: 0,\n\t end: 0\n\t },\n\t code,\n\t error,\n\t j,\n\t sum,\n\t normalized;\n\t\n\t for (i = offset; i < self._row.length; i++) {\n\t if (self._row[i] ^ isWhite) {\n\t counter[counterPos]++;\n\t } else {\n\t if (counterPos === counter.length - 1) {\n\t sum = 0;\n\t for (j = 0; j < counter.length; j++) {\n\t sum += counter[j];\n\t }\n\t normalized = self._normalize(counter);\n\t if (normalized) {\n\t for (code = self.START_CODE_A; code <= self.START_CODE_C; code++) {\n\t error = self._matchPattern(normalized, self.CODE_PATTERN[code]);\n\t if (error < bestMatch.error) {\n\t bestMatch.code = code;\n\t bestMatch.error = error;\n\t }\n\t }\n\t if (bestMatch.error < self.AVG_CODE_ERROR) {\n\t bestMatch.start = i - sum;\n\t bestMatch.end = i;\n\t return bestMatch;\n\t }\n\t }\n\t\n\t for (j = 0; j < 4; j++) {\n\t counter[j] = counter[j + 2];\n\t }\n\t counter[4] = 0;\n\t counter[5] = 0;\n\t counterPos--;\n\t } else {\n\t counterPos++;\n\t }\n\t counter[counterPos] = 1;\n\t isWhite = !isWhite;\n\t }\n\t }\n\t return null;\n\t};\n\t\n\tCode128Reader.prototype._decode = function () {\n\t var self = this,\n\t startInfo = self._findStart(),\n\t code = null,\n\t done = false,\n\t result = [],\n\t multiplier = 0,\n\t checksum = 0,\n\t codeset,\n\t rawResult = [],\n\t decodedCodes = [],\n\t shiftNext = false,\n\t unshift,\n\t lastCharacterWasPrintable;\n\t\n\t if (startInfo === null) {\n\t return null;\n\t }\n\t code = {\n\t code: startInfo.code,\n\t start: startInfo.start,\n\t end: startInfo.end\n\t };\n\t decodedCodes.push(code);\n\t checksum = code.code;\n\t switch (code.code) {\n\t case self.START_CODE_A:\n\t codeset = self.CODE_A;\n\t break;\n\t case self.START_CODE_B:\n\t codeset = self.CODE_B;\n\t break;\n\t case self.START_CODE_C:\n\t codeset = self.CODE_C;\n\t break;\n\t default:\n\t return null;\n\t }\n\t\n\t while (!done) {\n\t unshift = shiftNext;\n\t shiftNext = false;\n\t code = self._decodeCode(code.end);\n\t if (code !== null) {\n\t if (code.code !== self.STOP_CODE) {\n\t rawResult.push(code.code);\n\t multiplier++;\n\t checksum += multiplier * code.code;\n\t }\n\t decodedCodes.push(code);\n\t\n\t switch (codeset) {\n\t case self.CODE_A:\n\t if (code.code < 64) {\n\t result.push(String.fromCharCode(32 + code.code));\n\t } else if (code.code < 96) {\n\t result.push(String.fromCharCode(code.code - 64));\n\t } else {\n\t switch (code.code) {\n\t case self.CODE_SHIFT:\n\t shiftNext = true;\n\t codeset = self.CODE_B;\n\t break;\n\t case self.CODE_B:\n\t codeset = self.CODE_B;\n\t break;\n\t case self.CODE_C:\n\t codeset = self.CODE_C;\n\t break;\n\t case self.STOP_CODE:\n\t done = true;\n\t break;\n\t }\n\t }\n\t break;\n\t case self.CODE_B:\n\t if (code.code < 96) {\n\t result.push(String.fromCharCode(32 + code.code));\n\t } else {\n\t if (code.code != self.STOP_CODE) {\n\t lastCharacterWasPrintable = false;\n\t }\n\t switch (code.code) {\n\t case self.CODE_SHIFT:\n\t shiftNext = true;\n\t codeset = self.CODE_A;\n\t break;\n\t case self.CODE_A:\n\t codeset = self.CODE_A;\n\t break;\n\t case self.CODE_C:\n\t codeset = self.CODE_C;\n\t break;\n\t case self.STOP_CODE:\n\t done = true;\n\t break;\n\t }\n\t }\n\t break;\n\t case self.CODE_C:\n\t if (code.code < 100) {\n\t result.push(code.code < 10 ? \"0\" + code.code : code.code);\n\t }\n\t switch (code.code) {\n\t case self.CODE_A:\n\t codeset = self.CODE_A;\n\t break;\n\t case self.CODE_B:\n\t codeset = self.CODE_B;\n\t break;\n\t case self.STOP_CODE:\n\t done = true;\n\t break;\n\t }\n\t break;\n\t }\n\t } else {\n\t done = true;\n\t }\n\t if (unshift) {\n\t codeset = codeset == self.CODE_A ? self.CODE_B : self.CODE_A;\n\t }\n\t }\n\t\n\t if (code === null) {\n\t return null;\n\t }\n\t\n\t // find end bar\n\t code.end = self._nextUnset(self._row, code.end);\n\t if (!self._verifyTrailingWhitespace(code)) {\n\t return null;\n\t }\n\t\n\t // checksum\n\t // Does not work correctly yet!!! startcode - endcode?\n\t checksum -= multiplier * rawResult[rawResult.length - 1];\n\t if (checksum % 103 != rawResult[rawResult.length - 1]) {\n\t return null;\n\t }\n\t\n\t if (!result.length) {\n\t return null;\n\t }\n\t\n\t // remove last code from result (checksum)\n\t result.splice(result.length - 1, 1);\n\t\n\t return {\n\t code: result.join(\"\"),\n\t start: startInfo.start,\n\t end: code.end,\n\t codeset: codeset,\n\t startInfo: startInfo,\n\t decodedCodes: decodedCodes,\n\t endInfo: code\n\t };\n\t};\n\t\n\t_barcode_reader2[\"default\"].prototype._verifyTrailingWhitespace = function (endInfo) {\n\t var self = this,\n\t trailingWhitespaceEnd;\n\t\n\t trailingWhitespaceEnd = endInfo.end + (endInfo.end - endInfo.start) / 2;\n\t if (trailingWhitespaceEnd < self._row.length) {\n\t if (self._matchRange(endInfo.end, trailingWhitespaceEnd, 0)) {\n\t return endInfo;\n\t }\n\t }\n\t return null;\n\t};\n\t\n\texports[\"default\"] = Code128Reader;\n\tmodule.exports = exports[\"default\"];\n\n/***/ },\n/* 28 */\n/***/ function(module, exports) {\n\n\t'use strict';\n\t\n\tObject.defineProperty(exports, '__esModule', {\n\t value: true\n\t});\n\tfunction BarcodeReader(config) {\n\t this._row = [];\n\t this.config = config || {};\n\t return this;\n\t}\n\t\n\tBarcodeReader.prototype._nextUnset = function (line, start) {\n\t var i;\n\t\n\t if (start === undefined) {\n\t start = 0;\n\t }\n\t for (i = start; i < line.length; i++) {\n\t if (!line[i]) {\n\t return i;\n\t }\n\t }\n\t return line.length;\n\t};\n\t\n\tBarcodeReader.prototype._matchPattern = function (counter, code) {\n\t var i,\n\t error = 0,\n\t singleError = 0,\n\t modulo = this.MODULO,\n\t maxSingleError = this.SINGLE_CODE_ERROR || 1;\n\t\n\t for (i = 0; i < counter.length; i++) {\n\t singleError = Math.abs(code[i] - counter[i]);\n\t if (singleError > maxSingleError) {\n\t return Number.MAX_VALUE;\n\t }\n\t error += singleError;\n\t }\n\t return error / modulo;\n\t};\n\t\n\tBarcodeReader.prototype._nextSet = function (line, offset) {\n\t var i;\n\t\n\t offset = offset || 0;\n\t for (i = offset; i < line.length; i++) {\n\t if (line[i]) {\n\t return i;\n\t }\n\t }\n\t return line.length;\n\t};\n\t\n\tBarcodeReader.prototype._normalize = function (counter, modulo) {\n\t var i,\n\t self = this,\n\t sum = 0,\n\t ratio,\n\t numOnes = 0,\n\t normalized = [],\n\t norm = 0;\n\t\n\t if (!modulo) {\n\t modulo = self.MODULO;\n\t }\n\t for (i = 0; i < counter.length; i++) {\n\t if (counter[i] === 1) {\n\t numOnes++;\n\t } else {\n\t sum += counter[i];\n\t }\n\t }\n\t ratio = sum / (modulo - numOnes);\n\t if (ratio > 1.0) {\n\t for (i = 0; i < counter.length; i++) {\n\t norm = counter[i] === 1 ? counter[i] : counter[i] / ratio;\n\t normalized.push(norm);\n\t }\n\t } else {\n\t ratio = (sum + numOnes) / modulo;\n\t for (i = 0; i < counter.length; i++) {\n\t norm = counter[i] / ratio;\n\t normalized.push(norm);\n\t }\n\t }\n\t return normalized;\n\t};\n\t\n\tBarcodeReader.prototype._matchTrace = function (cmpCounter, epsilon) {\n\t var counter = [],\n\t i,\n\t self = this,\n\t offset = self._nextSet(self._row),\n\t isWhite = !self._row[offset],\n\t counterPos = 0,\n\t bestMatch = {\n\t error: Number.MAX_VALUE,\n\t code: -1,\n\t start: 0\n\t },\n\t error;\n\t\n\t if (cmpCounter) {\n\t for (i = 0; i < cmpCounter.length; i++) {\n\t counter.push(0);\n\t }\n\t for (i = offset; i < self._row.length; i++) {\n\t if (self._row[i] ^ isWhite) {\n\t counter[counterPos]++;\n\t } else {\n\t if (counterPos === counter.length - 1) {\n\t error = self._matchPattern(counter, cmpCounter);\n\t\n\t if (error < epsilon) {\n\t bestMatch.start = i - offset;\n\t bestMatch.end = i;\n\t bestMatch.counter = counter;\n\t return bestMatch;\n\t } else {\n\t return null;\n\t }\n\t } else {\n\t counterPos++;\n\t }\n\t counter[counterPos] = 1;\n\t isWhite = !isWhite;\n\t }\n\t }\n\t } else {\n\t counter.push(0);\n\t for (i = offset; i < self._row.length; i++) {\n\t if (self._row[i] ^ isWhite) {\n\t counter[counterPos]++;\n\t } else {\n\t counterPos++;\n\t counter.push(0);\n\t counter[counterPos] = 1;\n\t isWhite = !isWhite;\n\t }\n\t }\n\t }\n\t\n\t // if cmpCounter was not given\n\t bestMatch.start = offset;\n\t bestMatch.end = self._row.length - 1;\n\t bestMatch.counter = counter;\n\t return bestMatch;\n\t};\n\t\n\tBarcodeReader.prototype.decodePattern = function (pattern) {\n\t var self = this,\n\t result;\n\t\n\t self._row = pattern;\n\t result = self._decode();\n\t if (result === null) {\n\t self._row.reverse();\n\t result = self._decode();\n\t if (result) {\n\t result.direction = BarcodeReader.DIRECTION.REVERSE;\n\t result.start = self._row.length - result.start;\n\t result.end = self._row.length - result.end;\n\t }\n\t } else {\n\t result.direction = BarcodeReader.DIRECTION.FORWARD;\n\t }\n\t if (result) {\n\t result.format = self.FORMAT;\n\t }\n\t return result;\n\t};\n\t\n\tBarcodeReader.prototype._matchRange = function (start, end, value) {\n\t var i;\n\t\n\t start = start < 0 ? 0 : start;\n\t for (i = start; i < end; i++) {\n\t if (this._row[i] !== value) {\n\t return false;\n\t }\n\t }\n\t return true;\n\t};\n\t\n\tBarcodeReader.prototype._fillCounters = function (offset, end, isWhite) {\n\t var self = this,\n\t counterPos = 0,\n\t i,\n\t counters = [];\n\t\n\t isWhite = typeof isWhite !== 'undefined' ? isWhite : true;\n\t offset = typeof offset !== 'undefined' ? offset : self._nextUnset(self._row);\n\t end = end || self._row.length;\n\t\n\t counters[counterPos] = 0;\n\t for (i = offset; i < end; i++) {\n\t if (self._row[i] ^ isWhite) {\n\t counters[counterPos]++;\n\t } else {\n\t counterPos++;\n\t counters[counterPos] = 1;\n\t isWhite = !isWhite;\n\t }\n\t }\n\t return counters;\n\t};\n\t\n\tObject.defineProperty(BarcodeReader.prototype, \"FORMAT\", {\n\t value: 'unknown',\n\t writeable: false\n\t});\n\t\n\tBarcodeReader.DIRECTION = {\n\t FORWARD: 1,\n\t REVERSE: -1\n\t};\n\t\n\tBarcodeReader.Exception = {\n\t StartNotFoundException: \"Start-Info was not found!\",\n\t CodeNotFoundException: \"Code could not be found!\",\n\t PatternNotFoundException: \"Pattern could not be found!\"\n\t};\n\t\n\tBarcodeReader.CONFIG_KEYS = {};\n\t\n\texports['default'] = BarcodeReader;\n\tmodule.exports = exports['default'];\n\n/***/ },\n/* 29 */\n/***/ function(module, exports, __webpack_require__) {\n\n\t\"use strict\";\n\t\n\tObject.defineProperty(exports, \"__esModule\", {\n\t value: true\n\t});\n\t\n\tfunction _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { \"default\": obj }; }\n\t\n\tvar _barcode_reader = __webpack_require__(28);\n\t\n\tvar _barcode_reader2 = _interopRequireDefault(_barcode_reader);\n\t\n\tfunction EANReader(opts) {\n\t _barcode_reader2[\"default\"].call(this, opts);\n\t}\n\t\n\tvar properties = {\n\t CODE_L_START: { value: 0 },\n\t MODULO: { value: 7 },\n\t CODE_G_START: { value: 10 },\n\t START_PATTERN: { value: [1 / 3 * 7, 1 / 3 * 7, 1 / 3 * 7] },\n\t STOP_PATTERN: { value: [1 / 3 * 7, 1 / 3 * 7, 1 / 3 * 7] },\n\t MIDDLE_PATTERN: { value: [1 / 5 * 7, 1 / 5 * 7, 1 / 5 * 7, 1 / 5 * 7, 1 / 5 * 7] },\n\t CODE_PATTERN: { value: [[3, 2, 1, 1], [2, 2, 2, 1], [2, 1, 2, 2], [1, 4, 1, 1], [1, 1, 3, 2], [1, 2, 3, 1], [1, 1, 1, 4], [1, 3, 1, 2], [1, 2, 1, 3], [3, 1, 1, 2], [1, 1, 2, 3], [1, 2, 2, 2], [2, 2, 1, 2], [1, 1, 4, 1], [2, 3, 1, 1], [1, 3, 2, 1], [4, 1, 1, 1], [2, 1, 3, 1], [3, 1, 2, 1], [2, 1, 1, 3]] },\n\t CODE_FREQUENCY: { value: [0, 11, 13, 14, 19, 25, 28, 21, 22, 26] },\n\t SINGLE_CODE_ERROR: { value: 0.67 },\n\t AVG_CODE_ERROR: { value: 0.27 },\n\t FORMAT: { value: \"ean_13\", writeable: false }\n\t};\n\t\n\tEANReader.prototype = Object.create(_barcode_reader2[\"default\"].prototype, properties);\n\tEANReader.prototype.constructor = EANReader;\n\t\n\tEANReader.prototype._decodeCode = function (start, coderange) {\n\t var counter = [0, 0, 0, 0],\n\t i,\n\t self = this,\n\t offset = start,\n\t isWhite = !self._row[offset],\n\t counterPos = 0,\n\t bestMatch = {\n\t error: Number.MAX_VALUE,\n\t code: -1,\n\t start: start,\n\t end: start\n\t },\n\t code,\n\t error,\n\t normalized;\n\t\n\t if (!coderange) {\n\t coderange = self.CODE_PATTERN.length;\n\t }\n\t\n\t for (i = offset; i < self._row.length; i++) {\n\t if (self._row[i] ^ isWhite) {\n\t counter[counterPos]++;\n\t } else {\n\t if (counterPos === counter.length - 1) {\n\t normalized = self._normalize(counter);\n\t if (normalized) {\n\t for (code = 0; code < coderange; code++) {\n\t error = self._matchPattern(normalized, self.CODE_PATTERN[code]);\n\t if (error < bestMatch.error) {\n\t bestMatch.code = code;\n\t bestMatch.error = error;\n\t }\n\t }\n\t bestMatch.end = i;\n\t if (bestMatch.error > self.AVG_CODE_ERROR) {\n\t return null;\n\t }\n\t return bestMatch;\n\t }\n\t } else {\n\t counterPos++;\n\t }\n\t counter[counterPos] = 1;\n\t isWhite = !isWhite;\n\t }\n\t }\n\t return null;\n\t};\n\t\n\tEANReader.prototype._findPattern = function (pattern, offset, isWhite, tryHarder, epsilon) {\n\t var counter = [],\n\t self = this,\n\t i,\n\t counterPos = 0,\n\t bestMatch = {\n\t error: Number.MAX_VALUE,\n\t code: -1,\n\t start: 0,\n\t end: 0\n\t },\n\t error,\n\t j,\n\t sum,\n\t normalized;\n\t\n\t if (!offset) {\n\t offset = self._nextSet(self._row);\n\t }\n\t\n\t if (isWhite === undefined) {\n\t isWhite = false;\n\t }\n\t\n\t if (tryHarder === undefined) {\n\t tryHarder = true;\n\t }\n\t\n\t if (epsilon === undefined) {\n\t epsilon = self.AVG_CODE_ERROR;\n\t }\n\t\n\t for (i = 0; i < pattern.length; i++) {\n\t counter[i] = 0;\n\t }\n\t\n\t for (i = offset; i < self._row.length; i++) {\n\t if (self._row[i] ^ isWhite) {\n\t counter[counterPos]++;\n\t } else {\n\t if (counterPos === counter.length - 1) {\n\t sum = 0;\n\t for (j = 0; j < counter.length; j++) {\n\t sum += counter[j];\n\t }\n\t normalized = self._normalize(counter);\n\t if (normalized) {\n\t error = self._matchPattern(normalized, pattern);\n\t\n\t if (error < epsilon) {\n\t bestMatch.error = error;\n\t bestMatch.start = i - sum;\n\t bestMatch.end = i;\n\t return bestMatch;\n\t }\n\t }\n\t if (tryHarder) {\n\t for (j = 0; j < counter.length - 2; j++) {\n\t counter[j] = counter[j + 2];\n\t }\n\t counter[counter.length - 2] = 0;\n\t counter[counter.length - 1] = 0;\n\t counterPos--;\n\t } else {\n\t return null;\n\t }\n\t } else {\n\t counterPos++;\n\t }\n\t counter[counterPos] = 1;\n\t isWhite = !isWhite;\n\t }\n\t }\n\t return null;\n\t};\n\t\n\tEANReader.prototype._findStart = function () {\n\t var self = this,\n\t leadingWhitespaceStart,\n\t offset = self._nextSet(self._row),\n\t startInfo;\n\t\n\t while (!startInfo) {\n\t startInfo = self._findPattern(self.START_PATTERN, offset);\n\t if (!startInfo) {\n\t return null;\n\t }\n\t leadingWhitespaceStart = startInfo.start - (startInfo.end - startInfo.start);\n\t if (leadingWhitespaceStart >= 0) {\n\t if (self._matchRange(leadingWhitespaceStart, startInfo.start, 0)) {\n\t return startInfo;\n\t }\n\t }\n\t offset = startInfo.end;\n\t startInfo = null;\n\t }\n\t};\n\t\n\tEANReader.prototype._verifyTrailingWhitespace = function (endInfo) {\n\t var self = this,\n\t trailingWhitespaceEnd;\n\t\n\t trailingWhitespaceEnd = endInfo.end + (endInfo.end - endInfo.start);\n\t if (trailingWhitespaceEnd < self._row.length) {\n\t if (self._matchRange(endInfo.end, trailingWhitespaceEnd, 0)) {\n\t return endInfo;\n\t }\n\t }\n\t return null;\n\t};\n\t\n\tEANReader.prototype._findEnd = function (offset, isWhite) {\n\t var self = this,\n\t endInfo = self._findPattern(self.STOP_PATTERN, offset, isWhite, false);\n\t\n\t return endInfo !== null ? self._verifyTrailingWhitespace(endInfo) : null;\n\t};\n\t\n\tEANReader.prototype._calculateFirstDigit = function (codeFrequency) {\n\t var i,\n\t self = this;\n\t\n\t for (i = 0; i < self.CODE_FREQUENCY.length; i++) {\n\t if (codeFrequency === self.CODE_FREQUENCY[i]) {\n\t return i;\n\t }\n\t }\n\t return null;\n\t};\n\t\n\tEANReader.prototype._decodePayload = function (code, result, decodedCodes) {\n\t var i,\n\t self = this,\n\t codeFrequency = 0x0,\n\t firstDigit;\n\t\n\t for (i = 0; i < 6; i++) {\n\t code = self._decodeCode(code.end);\n\t if (!code) {\n\t return null;\n\t }\n\t if (code.code >= self.CODE_G_START) {\n\t code.code = code.code - self.CODE_G_START;\n\t codeFrequency |= 1 << 5 - i;\n\t } else {\n\t codeFrequency |= 0 << 5 - i;\n\t }\n\t result.push(code.code);\n\t decodedCodes.push(code);\n\t }\n\t\n\t firstDigit = self._calculateFirstDigit(codeFrequency);\n\t if (firstDigit === null) {\n\t return null;\n\t }\n\t result.unshift(firstDigit);\n\t\n\t code = self._findPattern(self.MIDDLE_PATTERN, code.end, true, false);\n\t if (code === null) {\n\t return null;\n\t }\n\t decodedCodes.push(code);\n\t\n\t for (i = 0; i < 6; i++) {\n\t code = self._decodeCode(code.end, self.CODE_G_START);\n\t if (!code) {\n\t return null;\n\t }\n\t decodedCodes.push(code);\n\t result.push(code.code);\n\t }\n\t\n\t return code;\n\t};\n\t\n\tEANReader.prototype._decode = function () {\n\t var startInfo,\n\t self = this,\n\t code,\n\t result = [],\n\t decodedCodes = [];\n\t\n\t startInfo = self._findStart();\n\t if (!startInfo) {\n\t return null;\n\t }\n\t code = {\n\t code: startInfo.code,\n\t start: startInfo.start,\n\t end: startInfo.end\n\t };\n\t decodedCodes.push(code);\n\t code = self._decodePayload(code, result, decodedCodes);\n\t if (!code) {\n\t return null;\n\t }\n\t code = self._findEnd(code.end, false);\n\t if (!code) {\n\t return null;\n\t }\n\t\n\t decodedCodes.push(code);\n\t\n\t // Checksum\n\t if (!self._checksum(result)) {\n\t return null;\n\t }\n\t\n\t return {\n\t code: result.join(\"\"),\n\t start: startInfo.start,\n\t end: code.end,\n\t codeset: \"\",\n\t startInfo: startInfo,\n\t decodedCodes: decodedCodes\n\t };\n\t};\n\t\n\tEANReader.prototype._checksum = function (result) {\n\t var sum = 0,\n\t i;\n\t\n\t for (i = result.length - 2; i >= 0; i -= 2) {\n\t sum += result[i];\n\t }\n\t sum *= 3;\n\t for (i = result.length - 1; i >= 0; i -= 2) {\n\t sum += result[i];\n\t }\n\t return sum % 10 === 0;\n\t};\n\t\n\texports[\"default\"] = EANReader;\n\tmodule.exports = exports[\"default\"];\n\n/***/ },\n/* 30 */\n/***/ function(module, exports, __webpack_require__) {\n\n\t'use strict';\n\t\n\tObject.defineProperty(exports, '__esModule', {\n\t value: true\n\t});\n\t\n\tfunction _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }\n\t\n\tvar _barcode_reader = __webpack_require__(28);\n\t\n\tvar _barcode_reader2 = _interopRequireDefault(_barcode_reader);\n\t\n\tvar _array_helper = __webpack_require__(19);\n\t\n\tvar _array_helper2 = _interopRequireDefault(_array_helper);\n\t\n\tfunction Code39Reader() {\n\t _barcode_reader2['default'].call(this);\n\t}\n\t\n\tvar properties = {\n\t ALPHABETH_STRING: { value: \"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ-. *$/+%\" },\n\t ALPHABET: { value: [48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 45, 46, 32, 42, 36, 47, 43, 37] },\n\t CHARACTER_ENCODINGS: { value: [0x034, 0x121, 0x061, 0x160, 0x031, 0x130, 0x070, 0x025, 0x124, 0x064, 0x109, 0x049, 0x148, 0x019, 0x118, 0x058, 0x00D, 0x10C, 0x04C, 0x01C, 0x103, 0x043, 0x142, 0x013, 0x112, 0x052, 0x007, 0x106, 0x046, 0x016, 0x181, 0x0C1, 0x1C0, 0x091, 0x190, 0x0D0, 0x085, 0x184, 0x0C4, 0x094, 0x0A8, 0x0A2, 0x08A, 0x02A] },\n\t ASTERISK: { value: 0x094 },\n\t FORMAT: { value: \"code_39\", writeable: false }\n\t};\n\t\n\tCode39Reader.prototype = Object.create(_barcode_reader2['default'].prototype, properties);\n\tCode39Reader.prototype.constructor = Code39Reader;\n\t\n\tCode39Reader.prototype._toCounters = function (start, counter) {\n\t var self = this,\n\t numCounters = counter.length,\n\t end = self._row.length,\n\t isWhite = !self._row[start],\n\t i,\n\t counterPos = 0;\n\t\n\t _array_helper2['default'].init(counter, 0);\n\t\n\t for (i = start; i < end; i++) {\n\t if (self._row[i] ^ isWhite) {\n\t counter[counterPos]++;\n\t } else {\n\t counterPos++;\n\t if (counterPos === numCounters) {\n\t break;\n\t } else {\n\t counter[counterPos] = 1;\n\t isWhite = !isWhite;\n\t }\n\t }\n\t }\n\t\n\t return counter;\n\t};\n\t\n\tCode39Reader.prototype._decode = function () {\n\t var self = this,\n\t counters = [0, 0, 0, 0, 0, 0, 0, 0, 0],\n\t result = [],\n\t start = self._findStart(),\n\t decodedChar,\n\t lastStart,\n\t pattern,\n\t nextStart;\n\t\n\t if (!start) {\n\t return null;\n\t }\n\t nextStart = self._nextSet(self._row, start.end);\n\t\n\t do {\n\t counters = self._toCounters(nextStart, counters);\n\t pattern = self._toPattern(counters);\n\t if (pattern < 0) {\n\t return null;\n\t }\n\t decodedChar = self._patternToChar(pattern);\n\t if (decodedChar < 0) {\n\t return null;\n\t }\n\t result.push(decodedChar);\n\t lastStart = nextStart;\n\t nextStart += _array_helper2['default'].sum(counters);\n\t nextStart = self._nextSet(self._row, nextStart);\n\t } while (decodedChar !== '*');\n\t result.pop();\n\t\n\t if (!result.length) {\n\t return null;\n\t }\n\t\n\t if (!self._verifyTrailingWhitespace(lastStart, nextStart, counters)) {\n\t return null;\n\t }\n\t\n\t return {\n\t code: result.join(\"\"),\n\t start: start.start,\n\t end: nextStart,\n\t startInfo: start,\n\t decodedCodes: result\n\t };\n\t};\n\t\n\tCode39Reader.prototype._verifyTrailingWhitespace = function (lastStart, nextStart, counters) {\n\t var trailingWhitespaceEnd,\n\t patternSize = _array_helper2['default'].sum(counters);\n\t\n\t trailingWhitespaceEnd = nextStart - lastStart - patternSize;\n\t if (trailingWhitespaceEnd * 3 >= patternSize) {\n\t return true;\n\t }\n\t return false;\n\t};\n\t\n\tCode39Reader.prototype._patternToChar = function (pattern) {\n\t var i,\n\t self = this;\n\t\n\t for (i = 0; i < self.CHARACTER_ENCODINGS.length; i++) {\n\t if (self.CHARACTER_ENCODINGS[i] === pattern) {\n\t return String.fromCharCode(self.ALPHABET[i]);\n\t }\n\t }\n\t};\n\t\n\tCode39Reader.prototype._findNextWidth = function (counters, current) {\n\t var i,\n\t minWidth = Number.MAX_VALUE;\n\t\n\t for (i = 0; i < counters.length; i++) {\n\t if (counters[i] < minWidth && counters[i] > current) {\n\t minWidth = counters[i];\n\t }\n\t }\n\t\n\t return minWidth;\n\t};\n\t\n\tCode39Reader.prototype._toPattern = function (counters) {\n\t var numCounters = counters.length,\n\t maxNarrowWidth = 0,\n\t numWideBars = numCounters,\n\t wideBarWidth = 0,\n\t self = this,\n\t pattern,\n\t i;\n\t\n\t while (numWideBars > 3) {\n\t maxNarrowWidth = self._findNextWidth(counters, maxNarrowWidth);\n\t numWideBars = 0;\n\t pattern = 0;\n\t for (i = 0; i < numCounters; i++) {\n\t if (counters[i] > maxNarrowWidth) {\n\t pattern |= 1 << numCounters - 1 - i;\n\t numWideBars++;\n\t wideBarWidth += counters[i];\n\t }\n\t }\n\t\n\t if (numWideBars === 3) {\n\t for (i = 0; i < numCounters && numWideBars > 0; i++) {\n\t if (counters[i] > maxNarrowWidth) {\n\t numWideBars--;\n\t if (counters[i] * 2 >= wideBarWidth) {\n\t return -1;\n\t }\n\t }\n\t }\n\t return pattern;\n\t }\n\t }\n\t return -1;\n\t};\n\t\n\tCode39Reader.prototype._findStart = function () {\n\t var self = this,\n\t offset = self._nextSet(self._row),\n\t patternStart = offset,\n\t counter = [0, 0, 0, 0, 0, 0, 0, 0, 0],\n\t counterPos = 0,\n\t isWhite = false,\n\t i,\n\t j,\n\t whiteSpaceMustStart;\n\t\n\t for (i = offset; i < self._row.length; i++) {\n\t if (self._row[i] ^ isWhite) {\n\t counter[counterPos]++;\n\t } else {\n\t if (counterPos === counter.length - 1) {\n\t\n\t // find start pattern\n\t if (self._toPattern(counter) === self.ASTERISK) {\n\t whiteSpaceMustStart = Math.floor(Math.max(0, patternStart - (i - patternStart) / 4));\n\t if (self._matchRange(whiteSpaceMustStart, patternStart, 0)) {\n\t return {\n\t start: patternStart,\n\t end: i\n\t };\n\t }\n\t }\n\t\n\t patternStart += counter[0] + counter[1];\n\t for (j = 0; j < 7; j++) {\n\t counter[j] = counter[j + 2];\n\t }\n\t counter[7] = 0;\n\t counter[8] = 0;\n\t counterPos--;\n\t } else {\n\t counterPos++;\n\t }\n\t counter[counterPos] = 1;\n\t isWhite = !isWhite;\n\t }\n\t }\n\t return null;\n\t};\n\t\n\texports['default'] = Code39Reader;\n\tmodule.exports = exports['default'];\n\n/***/ },\n/* 31 */\n/***/ function(module, exports, __webpack_require__) {\n\n\t'use strict';\n\t\n\tObject.defineProperty(exports, '__esModule', {\n\t value: true\n\t});\n\t\n\tfunction _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }\n\t\n\tvar _code_39_reader = __webpack_require__(30);\n\t\n\tvar _code_39_reader2 = _interopRequireDefault(_code_39_reader);\n\t\n\tfunction Code39VINReader() {\n\t _code_39_reader2['default'].call(this);\n\t}\n\t\n\tvar patterns = {\n\t IOQ: /[IOQ]/g,\n\t AZ09: /[A-Z0-9]{17}/\n\t};\n\t\n\tCode39VINReader.prototype = Object.create(_code_39_reader2['default'].prototype);\n\tCode39VINReader.prototype.constructor = Code39VINReader;\n\t\n\t// Cribbed from:\n\t// /~https://github.com/zxing/zxing/blob/master/core/src/main/java/com/google/zxing/client/result/VINResultParser.java\n\tCode39VINReader.prototype._decode = function () {\n\t var result = _code_39_reader2['default'].prototype._decode.apply(this);\n\t if (!result) {\n\t return null;\n\t }\n\t\n\t var code = result.code;\n\t\n\t if (!code) {\n\t return;\n\t }\n\t\n\t code = code.replace(patterns.IOQ, '');\n\t\n\t if (!code.match(patterns.AZ09)) {\n\t console.log('Failed AZ09 pattern code:', code);\n\t return null;\n\t }\n\t\n\t if (!this._checkChecksum(code)) {\n\t return null;\n\t }\n\t\n\t result.code = code;\n\t return result;\n\t};\n\t\n\tCode39VINReader.prototype._checkChecksum = function (code) {\n\t // TODO\n\t return !!code;\n\t};\n\t\n\texports['default'] = Code39VINReader;\n\tmodule.exports = exports['default'];\n\n/***/ },\n/* 32 */\n/***/ function(module, exports, __webpack_require__) {\n\n\t\"use strict\";\n\t\n\tObject.defineProperty(exports, \"__esModule\", {\n\t value: true\n\t});\n\t\n\tfunction _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { \"default\": obj }; }\n\t\n\tvar _barcode_reader = __webpack_require__(28);\n\t\n\tvar _barcode_reader2 = _interopRequireDefault(_barcode_reader);\n\t\n\tfunction CodabarReader() {\n\t _barcode_reader2[\"default\"].call(this);\n\t this._counters = [];\n\t}\n\t\n\tvar properties = {\n\t ALPHABETH_STRING: { value: \"0123456789-$:/.+ABCD\" },\n\t ALPHABET: { value: [48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 45, 36, 58, 47, 46, 43, 65, 66, 67, 68] },\n\t CHARACTER_ENCODINGS: { value: [0x003, 0x006, 0x009, 0x060, 0x012, 0x042, 0x021, 0x024, 0x030, 0x048, 0x00c, 0x018, 0x045, 0x051, 0x054, 0x015, 0x01A, 0x029, 0x00B, 0x00E] },\n\t START_END: { value: [0x01A, 0x029, 0x00B, 0x00E] },\n\t MIN_ENCODED_CHARS: { value: 4 },\n\t MAX_ACCEPTABLE: { value: 2.0 },\n\t PADDING: { value: 1.5 },\n\t FORMAT: { value: \"codabar\", writeable: false }\n\t};\n\t\n\tCodabarReader.prototype = Object.create(_barcode_reader2[\"default\"].prototype, properties);\n\tCodabarReader.prototype.constructor = CodabarReader;\n\t\n\tCodabarReader.prototype._decode = function () {\n\t var self = this,\n\t result = [],\n\t start,\n\t decodedChar,\n\t pattern,\n\t nextStart,\n\t end;\n\t\n\t this._counters = self._fillCounters();\n\t start = self._findStart();\n\t if (!start) {\n\t return null;\n\t }\n\t nextStart = start.startCounter;\n\t\n\t do {\n\t pattern = self._toPattern(nextStart);\n\t if (pattern < 0) {\n\t return null;\n\t }\n\t decodedChar = self._patternToChar(pattern);\n\t if (decodedChar < 0) {\n\t return null;\n\t }\n\t result.push(decodedChar);\n\t nextStart += 8;\n\t if (result.length > 1 && self._isStartEnd(pattern)) {\n\t break;\n\t }\n\t } while (nextStart < self._counters.length);\n\t\n\t // verify end\n\t if (result.length - 2 < self.MIN_ENCODED_CHARS || !self._isStartEnd(pattern)) {\n\t return null;\n\t }\n\t\n\t // verify end white space\n\t if (!self._verifyWhitespace(start.startCounter, nextStart - 8)) {\n\t return null;\n\t }\n\t\n\t if (!self._validateResult(result, start.startCounter)) {\n\t return null;\n\t }\n\t\n\t nextStart = nextStart > self._counters.length ? self._counters.length : nextStart;\n\t end = start.start + self._sumCounters(start.startCounter, nextStart - 8);\n\t\n\t return {\n\t code: result.join(\"\"),\n\t start: start.start,\n\t end: end,\n\t startInfo: start,\n\t decodedCodes: result\n\t };\n\t};\n\t\n\tCodabarReader.prototype._verifyWhitespace = function (startCounter, endCounter) {\n\t if (startCounter - 1 <= 0 || this._counters[startCounter - 1] >= this._calculatePatternLength(startCounter) / 2.0) {\n\t if (endCounter + 8 >= this._counters.length || this._counters[endCounter + 7] >= this._calculatePatternLength(endCounter) / 2.0) {\n\t return true;\n\t }\n\t }\n\t return false;\n\t};\n\t\n\tCodabarReader.prototype._calculatePatternLength = function (offset) {\n\t var i,\n\t sum = 0;\n\t\n\t for (i = offset; i < offset + 7; i++) {\n\t sum += this._counters[i];\n\t }\n\t\n\t return sum;\n\t};\n\t\n\tCodabarReader.prototype._thresholdResultPattern = function (result, startCounter) {\n\t var self = this,\n\t categorization = {\n\t space: {\n\t narrow: { size: 0, counts: 0, min: 0, max: Number.MAX_VALUE },\n\t wide: { size: 0, counts: 0, min: 0, max: Number.MAX_VALUE }\n\t },\n\t bar: {\n\t narrow: { size: 0, counts: 0, min: 0, max: Number.MAX_VALUE },\n\t wide: { size: 0, counts: 0, min: 0, max: Number.MAX_VALUE }\n\t }\n\t },\n\t kind,\n\t cat,\n\t i,\n\t j,\n\t pos = startCounter,\n\t pattern;\n\t\n\t for (i = 0; i < result.length; i++) {\n\t pattern = self._charToPattern(result[i]);\n\t for (j = 6; j >= 0; j--) {\n\t kind = (j & 1) === 2 ? categorization.bar : categorization.space;\n\t cat = (pattern & 1) === 1 ? kind.wide : kind.narrow;\n\t cat.size += self._counters[pos + j];\n\t cat.counts++;\n\t pattern >>= 1;\n\t }\n\t pos += 8;\n\t }\n\t\n\t [\"space\", \"bar\"].forEach(function (key) {\n\t var kind = categorization[key];\n\t kind.wide.min = Math.floor((kind.narrow.size / kind.narrow.counts + kind.wide.size / kind.wide.counts) / 2);\n\t kind.narrow.max = Math.ceil(kind.wide.min);\n\t kind.wide.max = Math.ceil((kind.wide.size * self.MAX_ACCEPTABLE + self.PADDING) / kind.wide.counts);\n\t });\n\t\n\t return categorization;\n\t};\n\t\n\tCodabarReader.prototype._charToPattern = function (char) {\n\t var self = this,\n\t charCode = char.charCodeAt(0),\n\t i;\n\t\n\t for (i = 0; i < self.ALPHABET.length; i++) {\n\t if (self.ALPHABET[i] === charCode) {\n\t return self.CHARACTER_ENCODINGS[i];\n\t }\n\t }\n\t return 0x0;\n\t};\n\t\n\tCodabarReader.prototype._validateResult = function (result, startCounter) {\n\t var self = this,\n\t thresholds = self._thresholdResultPattern(result, startCounter),\n\t i,\n\t j,\n\t kind,\n\t cat,\n\t size,\n\t pos = startCounter,\n\t pattern;\n\t\n\t for (i = 0; i < result.length; i++) {\n\t pattern = self._charToPattern(result[i]);\n\t for (j = 6; j >= 0; j--) {\n\t kind = (j & 1) === 0 ? thresholds.bar : thresholds.space;\n\t cat = (pattern & 1) === 1 ? kind.wide : kind.narrow;\n\t size = self._counters[pos + j];\n\t if (size < cat.min || size > cat.max) {\n\t return false;\n\t }\n\t pattern >>= 1;\n\t }\n\t pos += 8;\n\t }\n\t return true;\n\t};\n\t\n\tCodabarReader.prototype._patternToChar = function (pattern) {\n\t var i,\n\t self = this;\n\t\n\t for (i = 0; i < self.CHARACTER_ENCODINGS.length; i++) {\n\t if (self.CHARACTER_ENCODINGS[i] === pattern) {\n\t return String.fromCharCode(self.ALPHABET[i]);\n\t }\n\t }\n\t return -1;\n\t};\n\t\n\tCodabarReader.prototype._computeAlternatingThreshold = function (offset, end) {\n\t var i,\n\t min = Number.MAX_VALUE,\n\t max = 0,\n\t counter;\n\t\n\t for (i = offset; i < end; i += 2) {\n\t counter = this._counters[i];\n\t if (counter > max) {\n\t max = counter;\n\t }\n\t if (counter < min) {\n\t min = counter;\n\t }\n\t }\n\t\n\t return (min + max) / 2.0 | 0;\n\t};\n\t\n\tCodabarReader.prototype._toPattern = function (offset) {\n\t var numCounters = 7,\n\t end = offset + numCounters,\n\t barThreshold,\n\t spaceThreshold,\n\t bitmask = 1 << numCounters - 1,\n\t pattern = 0,\n\t i,\n\t threshold;\n\t\n\t if (end > this._counters.length) {\n\t return -1;\n\t }\n\t\n\t barThreshold = this._computeAlternatingThreshold(offset, end);\n\t spaceThreshold = this._computeAlternatingThreshold(offset + 1, end);\n\t\n\t for (i = 0; i < numCounters; i++) {\n\t threshold = (i & 1) === 0 ? barThreshold : spaceThreshold;\n\t if (this._counters[offset + i] > threshold) {\n\t pattern |= bitmask;\n\t }\n\t bitmask >>= 1;\n\t }\n\t\n\t return pattern;\n\t};\n\t\n\tCodabarReader.prototype._isStartEnd = function (pattern) {\n\t var i;\n\t\n\t for (i = 0; i < this.START_END.length; i++) {\n\t if (this.START_END[i] === pattern) {\n\t return true;\n\t }\n\t }\n\t return false;\n\t};\n\t\n\tCodabarReader.prototype._sumCounters = function (start, end) {\n\t var i,\n\t sum = 0;\n\t\n\t for (i = start; i < end; i++) {\n\t sum += this._counters[i];\n\t }\n\t return sum;\n\t};\n\t\n\tCodabarReader.prototype._findStart = function () {\n\t var self = this,\n\t i,\n\t pattern,\n\t start = self._nextUnset(self._row),\n\t end;\n\t\n\t for (i = 1; i < this._counters.length; i++) {\n\t pattern = self._toPattern(i);\n\t if (pattern !== -1 && self._isStartEnd(pattern)) {\n\t // TODO: Look for whitespace ahead\n\t start += self._sumCounters(0, i);\n\t end = start + self._sumCounters(i, i + 8);\n\t return {\n\t start: start,\n\t end: end,\n\t startCounter: i,\n\t endCounter: i + 8\n\t };\n\t }\n\t }\n\t};\n\t\n\texports[\"default\"] = CodabarReader;\n\tmodule.exports = exports[\"default\"];\n\n/***/ },\n/* 33 */\n/***/ function(module, exports, __webpack_require__) {\n\n\t\"use strict\";\n\t\n\tObject.defineProperty(exports, \"__esModule\", {\n\t value: true\n\t});\n\t\n\tfunction _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { \"default\": obj }; }\n\t\n\tvar _ean_reader = __webpack_require__(29);\n\t\n\tvar _ean_reader2 = _interopRequireDefault(_ean_reader);\n\t\n\tfunction UPCReader() {\n\t _ean_reader2[\"default\"].call(this);\n\t}\n\t\n\tvar properties = {\n\t FORMAT: { value: \"upc_a\", writeable: false }\n\t};\n\t\n\tUPCReader.prototype = Object.create(_ean_reader2[\"default\"].prototype, properties);\n\tUPCReader.prototype.constructor = UPCReader;\n\t\n\tUPCReader.prototype._decode = function () {\n\t var result = _ean_reader2[\"default\"].prototype._decode.call(this);\n\t\n\t if (result && result.code && result.code.length === 13 && result.code.charAt(0) === \"0\") {\n\t\n\t result.code = result.code.substring(1);\n\t return result;\n\t }\n\t return null;\n\t};\n\t\n\texports[\"default\"] = _ean_reader2[\"default\"];\n\tmodule.exports = exports[\"default\"];\n\n/***/ },\n/* 34 */\n/***/ function(module, exports, __webpack_require__) {\n\n\t\"use strict\";\n\t\n\tObject.defineProperty(exports, \"__esModule\", {\n\t value: true\n\t});\n\t\n\tfunction _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { \"default\": obj }; }\n\t\n\tvar _ean_reader = __webpack_require__(29);\n\t\n\tvar _ean_reader2 = _interopRequireDefault(_ean_reader);\n\t\n\tfunction EAN8Reader() {\n\t _ean_reader2[\"default\"].call(this);\n\t}\n\t\n\tvar properties = {\n\t FORMAT: { value: \"ean_8\", writeable: false }\n\t};\n\t\n\tEAN8Reader.prototype = Object.create(_ean_reader2[\"default\"].prototype, properties);\n\tEAN8Reader.prototype.constructor = EAN8Reader;\n\t\n\tEAN8Reader.prototype._decodePayload = function (code, result, decodedCodes) {\n\t var i,\n\t self = this;\n\t\n\t for (i = 0; i < 4; i++) {\n\t code = self._decodeCode(code.end, self.CODE_G_START);\n\t if (!code) {\n\t return null;\n\t }\n\t result.push(code.code);\n\t decodedCodes.push(code);\n\t }\n\t\n\t code = self._findPattern(self.MIDDLE_PATTERN, code.end, true, false);\n\t if (code === null) {\n\t return null;\n\t }\n\t decodedCodes.push(code);\n\t\n\t for (i = 0; i < 4; i++) {\n\t code = self._decodeCode(code.end, self.CODE_G_START);\n\t if (!code) {\n\t return null;\n\t }\n\t decodedCodes.push(code);\n\t result.push(code.code);\n\t }\n\t\n\t return code;\n\t};\n\t\n\texports[\"default\"] = EAN8Reader;\n\tmodule.exports = exports[\"default\"];\n\n/***/ },\n/* 35 */\n/***/ function(module, exports, __webpack_require__) {\n\n\t\"use strict\";\n\t\n\tObject.defineProperty(exports, \"__esModule\", {\n\t value: true\n\t});\n\t\n\tfunction _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { \"default\": obj }; }\n\t\n\tvar _ean_reader = __webpack_require__(29);\n\t\n\tvar _ean_reader2 = _interopRequireDefault(_ean_reader);\n\t\n\tfunction UPCEReader() {\n\t _ean_reader2[\"default\"].call(this);\n\t}\n\t\n\tvar properties = {\n\t CODE_FREQUENCY: { value: [[56, 52, 50, 49, 44, 38, 35, 42, 41, 37], [7, 11, 13, 14, 19, 25, 28, 21, 22, 26]] },\n\t STOP_PATTERN: { value: [1 / 6 * 7, 1 / 6 * 7, 1 / 6 * 7, 1 / 6 * 7, 1 / 6 * 7, 1 / 6 * 7] },\n\t FORMAT: { value: \"upc_e\", writeable: false }\n\t};\n\t\n\tUPCEReader.prototype = Object.create(_ean_reader2[\"default\"].prototype, properties);\n\tUPCEReader.prototype.constructor = UPCEReader;\n\t\n\tUPCEReader.prototype._decodePayload = function (code, result, decodedCodes) {\n\t var i,\n\t self = this,\n\t codeFrequency = 0x0;\n\t\n\t for (i = 0; i < 6; i++) {\n\t code = self._decodeCode(code.end);\n\t if (!code) {\n\t return null;\n\t }\n\t if (code.code >= self.CODE_G_START) {\n\t code.code = code.code - self.CODE_G_START;\n\t codeFrequency |= 1 << 5 - i;\n\t }\n\t result.push(code.code);\n\t decodedCodes.push(code);\n\t }\n\t if (!self._determineParity(codeFrequency, result)) {\n\t return null;\n\t }\n\t\n\t return code;\n\t};\n\t\n\tUPCEReader.prototype._determineParity = function (codeFrequency, result) {\n\t var self = this,\n\t i,\n\t nrSystem;\n\t\n\t for (nrSystem = 0; nrSystem < self.CODE_FREQUENCY.length; nrSystem++) {\n\t for (i = 0; i < self.CODE_FREQUENCY[nrSystem].length; i++) {\n\t if (codeFrequency === self.CODE_FREQUENCY[nrSystem][i]) {\n\t result.unshift(nrSystem);\n\t result.push(i);\n\t return true;\n\t }\n\t }\n\t }\n\t return false;\n\t};\n\t\n\tUPCEReader.prototype._convertToUPCA = function (result) {\n\t var upca = [result[0]],\n\t lastDigit = result[result.length - 2];\n\t\n\t if (lastDigit <= 2) {\n\t upca = upca.concat(result.slice(1, 3)).concat([lastDigit, 0, 0, 0, 0]).concat(result.slice(3, 6));\n\t } else if (lastDigit === 3) {\n\t upca = upca.concat(result.slice(1, 4)).concat([0, 0, 0, 0, 0]).concat(result.slice(4, 6));\n\t } else if (lastDigit === 4) {\n\t upca = upca.concat(result.slice(1, 5)).concat([0, 0, 0, 0, 0, result[5]]);\n\t } else {\n\t upca = upca.concat(result.slice(1, 6)).concat([0, 0, 0, 0, lastDigit]);\n\t }\n\t\n\t upca.push(result[result.length - 1]);\n\t return upca;\n\t};\n\t\n\tUPCEReader.prototype._checksum = function (result) {\n\t return _ean_reader2[\"default\"].prototype._checksum.call(this, this._convertToUPCA(result));\n\t};\n\t\n\tUPCEReader.prototype._findEnd = function (offset, isWhite) {\n\t isWhite = true;\n\t return _ean_reader2[\"default\"].prototype._findEnd.call(this, offset, isWhite);\n\t};\n\t\n\tUPCEReader.prototype._verifyTrailingWhitespace = function (endInfo) {\n\t var self = this,\n\t trailingWhitespaceEnd;\n\t\n\t trailingWhitespaceEnd = endInfo.end + (endInfo.end - endInfo.start) / 2;\n\t if (trailingWhitespaceEnd < self._row.length) {\n\t if (self._matchRange(endInfo.end, trailingWhitespaceEnd, 0)) {\n\t return endInfo;\n\t }\n\t }\n\t};\n\t\n\texports[\"default\"] = UPCEReader;\n\tmodule.exports = exports[\"default\"];\n\n/***/ },\n/* 36 */\n/***/ function(module, exports, __webpack_require__) {\n\n\t'use strict';\n\t\n\tObject.defineProperty(exports, '__esModule', {\n\t value: true\n\t});\n\t\n\tfunction _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }\n\t\n\tvar _barcode_reader = __webpack_require__(28);\n\t\n\tvar _barcode_reader2 = _interopRequireDefault(_barcode_reader);\n\t\n\tvar merge = __webpack_require__(37);\n\t\n\tfunction I2of5Reader(opts) {\n\t opts = merge(getDefaulConfig(), opts);\n\t _barcode_reader2['default'].call(this, opts);\n\t this.barSpaceRatio = [1, 1];\n\t if (opts.normalizeBarSpaceWidth) {\n\t this.SINGLE_CODE_ERROR = 0.38;\n\t this.AVG_CODE_ERROR = 0.09;\n\t }\n\t}\n\t\n\tfunction getDefaulConfig() {\n\t var config = {};\n\t\n\t Object.keys(I2of5Reader.CONFIG_KEYS).forEach(function (key) {\n\t config[key] = I2of5Reader.CONFIG_KEYS[key]['default'];\n\t });\n\t return config;\n\t}\n\t\n\tvar N = 1,\n\t W = 3,\n\t properties = {\n\t MODULO: { value: 10 },\n\t START_PATTERN: { value: [N * 2.5, N * 2.5, N * 2.5, N * 2.5] },\n\t STOP_PATTERN: { value: [N * 2, N * 2, W * 2] },\n\t CODE_PATTERN: { value: [[N, N, W, W, N], [W, N, N, N, W], [N, W, N, N, W], [W, W, N, N, N], [N, N, W, N, W], [W, N, W, N, N], [N, W, W, N, N], [N, N, N, W, W], [W, N, N, W, N], [N, W, N, W, N]] },\n\t SINGLE_CODE_ERROR: { value: 0.78, writable: true },\n\t AVG_CODE_ERROR: { value: 0.38, writable: true },\n\t MAX_CORRECTION_FACTOR: { value: 5 },\n\t FORMAT: { value: \"i2of5\" }\n\t};\n\t\n\tI2of5Reader.prototype = Object.create(_barcode_reader2['default'].prototype, properties);\n\tI2of5Reader.prototype.constructor = I2of5Reader;\n\t\n\tI2of5Reader.prototype._matchPattern = function (counter, code) {\n\t if (this.config.normalizeBarSpaceWidth) {\n\t var i,\n\t counterSum = [0, 0],\n\t codeSum = [0, 0],\n\t correction = [0, 0],\n\t correctionRatio = this.MAX_CORRECTION_FACTOR,\n\t correctionRatioInverse = 1 / correctionRatio;\n\t\n\t for (i = 0; i < counter.length; i++) {\n\t counterSum[i % 2] += counter[i];\n\t codeSum[i % 2] += code[i];\n\t }\n\t correction[0] = codeSum[0] / counterSum[0];\n\t correction[1] = codeSum[1] / counterSum[1];\n\t\n\t correction[0] = Math.max(Math.min(correction[0], correctionRatio), correctionRatioInverse);\n\t correction[1] = Math.max(Math.min(correction[1], correctionRatio), correctionRatioInverse);\n\t this.barSpaceRatio = correction;\n\t for (i = 0; i < counter.length; i++) {\n\t counter[i] *= this.barSpaceRatio[i % 2];\n\t }\n\t }\n\t return _barcode_reader2['default'].prototype._matchPattern.call(this, counter, code);\n\t};\n\t\n\tI2of5Reader.prototype._findPattern = function (pattern, offset, isWhite, tryHarder) {\n\t var counter = [],\n\t self = this,\n\t i,\n\t counterPos = 0,\n\t bestMatch = {\n\t error: Number.MAX_VALUE,\n\t code: -1,\n\t start: 0,\n\t end: 0\n\t },\n\t error,\n\t j,\n\t sum,\n\t normalized,\n\t epsilon = self.AVG_CODE_ERROR;\n\t\n\t isWhite = isWhite || false;\n\t tryHarder = tryHarder || false;\n\t\n\t if (!offset) {\n\t offset = self._nextSet(self._row);\n\t }\n\t\n\t for (i = 0; i < pattern.length; i++) {\n\t counter[i] = 0;\n\t }\n\t\n\t for (i = offset; i < self._row.length; i++) {\n\t if (self._row[i] ^ isWhite) {\n\t counter[counterPos]++;\n\t } else {\n\t if (counterPos === counter.length - 1) {\n\t sum = 0;\n\t for (j = 0; j < counter.length; j++) {\n\t sum += counter[j];\n\t }\n\t normalized = self._normalize(counter);\n\t if (normalized) {\n\t error = self._matchPattern(normalized, pattern);\n\t\n\t if (error < epsilon) {\n\t bestMatch.error = error;\n\t bestMatch.start = i - sum;\n\t bestMatch.end = i;\n\t return bestMatch;\n\t }\n\t }\n\t if (tryHarder) {\n\t for (j = 0; j < counter.length - 2; j++) {\n\t counter[j] = counter[j + 2];\n\t }\n\t counter[counter.length - 2] = 0;\n\t counter[counter.length - 1] = 0;\n\t counterPos--;\n\t } else {\n\t return null;\n\t }\n\t } else {\n\t counterPos++;\n\t }\n\t counter[counterPos] = 1;\n\t isWhite = !isWhite;\n\t }\n\t }\n\t return null;\n\t};\n\t\n\tI2of5Reader.prototype._findStart = function () {\n\t var self = this,\n\t leadingWhitespaceStart,\n\t offset = self._nextSet(self._row),\n\t startInfo,\n\t narrowBarWidth = 1;\n\t\n\t while (!startInfo) {\n\t startInfo = self._findPattern(self.START_PATTERN, offset, false, true);\n\t if (!startInfo) {\n\t return null;\n\t }\n\t narrowBarWidth = Math.floor((startInfo.end - startInfo.start) / 4);\n\t leadingWhitespaceStart = startInfo.start - narrowBarWidth * 10;\n\t if (leadingWhitespaceStart >= 0) {\n\t if (self._matchRange(leadingWhitespaceStart, startInfo.start, 0)) {\n\t return startInfo;\n\t }\n\t }\n\t offset = startInfo.end;\n\t startInfo = null;\n\t }\n\t};\n\t\n\tI2of5Reader.prototype._verifyTrailingWhitespace = function (endInfo) {\n\t var self = this,\n\t trailingWhitespaceEnd;\n\t\n\t trailingWhitespaceEnd = endInfo.end + (endInfo.end - endInfo.start) / 2;\n\t if (trailingWhitespaceEnd < self._row.length) {\n\t if (self._matchRange(endInfo.end, trailingWhitespaceEnd, 0)) {\n\t return endInfo;\n\t }\n\t }\n\t return null;\n\t};\n\t\n\tI2of5Reader.prototype._findEnd = function () {\n\t var self = this,\n\t endInfo,\n\t tmp;\n\t\n\t self._row.reverse();\n\t endInfo = self._findPattern(self.STOP_PATTERN);\n\t self._row.reverse();\n\t\n\t if (endInfo === null) {\n\t return null;\n\t }\n\t\n\t // reverse numbers\n\t tmp = endInfo.start;\n\t endInfo.start = self._row.length - endInfo.end;\n\t endInfo.end = self._row.length - tmp;\n\t\n\t return endInfo !== null ? self._verifyTrailingWhitespace(endInfo) : null;\n\t};\n\t\n\tI2of5Reader.prototype._decodePair = function (counterPair) {\n\t var i,\n\t code,\n\t codes = [],\n\t self = this;\n\t\n\t for (i = 0; i < counterPair.length; i++) {\n\t code = self._decodeCode(counterPair[i]);\n\t if (!code) {\n\t return null;\n\t }\n\t codes.push(code);\n\t }\n\t return codes;\n\t};\n\t\n\tI2of5Reader.prototype._decodeCode = function (counter) {\n\t var j,\n\t self = this,\n\t sum = 0,\n\t normalized,\n\t error,\n\t epsilon = self.AVG_CODE_ERROR,\n\t code,\n\t bestMatch = {\n\t error: Number.MAX_VALUE,\n\t code: -1,\n\t start: 0,\n\t end: 0\n\t };\n\t\n\t for (j = 0; j < counter.length; j++) {\n\t sum += counter[j];\n\t }\n\t normalized = self._normalize(counter);\n\t if (normalized) {\n\t for (code = 0; code < self.CODE_PATTERN.length; code++) {\n\t error = self._matchPattern(normalized, self.CODE_PATTERN[code]);\n\t if (error < bestMatch.error) {\n\t bestMatch.code = code;\n\t bestMatch.error = error;\n\t }\n\t }\n\t if (bestMatch.error < epsilon) {\n\t return bestMatch;\n\t }\n\t }\n\t return null;\n\t};\n\t\n\tI2of5Reader.prototype._decodePayload = function (counters, result, decodedCodes) {\n\t var i,\n\t self = this,\n\t pos = 0,\n\t counterLength = counters.length,\n\t counterPair = [[0, 0, 0, 0, 0], [0, 0, 0, 0, 0]],\n\t codes;\n\t\n\t while (pos < counterLength) {\n\t for (i = 0; i < 5; i++) {\n\t counterPair[0][i] = counters[pos] * this.barSpaceRatio[0];\n\t counterPair[1][i] = counters[pos + 1] * this.barSpaceRatio[1];\n\t pos += 2;\n\t }\n\t codes = self._decodePair(counterPair);\n\t if (!codes) {\n\t return null;\n\t }\n\t for (i = 0; i < codes.length; i++) {\n\t result.push(codes[i].code + \"\");\n\t decodedCodes.push(codes[i]);\n\t }\n\t }\n\t return codes;\n\t};\n\t\n\tI2of5Reader.prototype._verifyCounterLength = function (counters) {\n\t return counters.length % 10 === 0;\n\t};\n\t\n\tI2of5Reader.prototype._decode = function () {\n\t var startInfo,\n\t endInfo,\n\t self = this,\n\t code,\n\t result = [],\n\t decodedCodes = [],\n\t counters;\n\t\n\t startInfo = self._findStart();\n\t if (!startInfo) {\n\t return null;\n\t }\n\t decodedCodes.push(startInfo);\n\t\n\t endInfo = self._findEnd();\n\t if (!endInfo) {\n\t return null;\n\t }\n\t\n\t counters = self._fillCounters(startInfo.end, endInfo.start, false);\n\t if (!self._verifyCounterLength(counters)) {\n\t return null;\n\t }\n\t code = self._decodePayload(counters, result, decodedCodes);\n\t if (!code) {\n\t return null;\n\t }\n\t if (result.length % 2 !== 0 || result.length < 6) {\n\t return null;\n\t }\n\t\n\t decodedCodes.push(endInfo);\n\t return {\n\t code: result.join(\"\"),\n\t start: startInfo.start,\n\t end: endInfo.end,\n\t startInfo: startInfo,\n\t decodedCodes: decodedCodes\n\t };\n\t};\n\t\n\tI2of5Reader.CONFIG_KEYS = {\n\t normalizeBarSpaceWidth: {\n\t 'type': 'boolean',\n\t 'default': false,\n\t 'description': 'If true, the reader tries to normalize the' + 'width-difference between bars and spaces'\n\t }\n\t};\n\t\n\texports['default'] = I2of5Reader;\n\tmodule.exports = exports['default'];\n\n/***/ },\n/* 37 */\n/***/ function(module, exports, __webpack_require__) {\n\n\tvar baseMerge = __webpack_require__(38),\n\t createAssigner = __webpack_require__(65);\n\t\n\t/**\n\t * Recursively merges own enumerable properties of the source object(s), that\n\t * don't resolve to `undefined` into the destination object. Subsequent sources\n\t * overwrite property assignments of previous sources. If `customizer` is\n\t * provided it's invoked to produce the merged values of the destination and\n\t * source properties. If `customizer` returns `undefined` merging is handled\n\t * by the method instead. The `customizer` is bound to `thisArg` and invoked\n\t * with five arguments: (objectValue, sourceValue, key, object, source).\n\t *\n\t * @static\n\t * @memberOf _\n\t * @category Object\n\t * @param {Object} object The destination object.\n\t * @param {...Object} [sources] The source objects.\n\t * @param {Function} [customizer] The function to customize assigned values.\n\t * @param {*} [thisArg] The `this` binding of `customizer`.\n\t * @returns {Object} Returns `object`.\n\t * @example\n\t *\n\t * var users = {\n\t * 'data': [{ 'user': 'barney' }, { 'user': 'fred' }]\n\t * };\n\t *\n\t * var ages = {\n\t * 'data': [{ 'age': 36 }, { 'age': 40 }]\n\t * };\n\t *\n\t * _.merge(users, ages);\n\t * // => { 'data': [{ 'user': 'barney', 'age': 36 }, { 'user': 'fred', 'age': 40 }] }\n\t *\n\t * // using a customizer callback\n\t * var object = {\n\t * 'fruits': ['apple'],\n\t * 'vegetables': ['beet']\n\t * };\n\t *\n\t * var other = {\n\t * 'fruits': ['banana'],\n\t * 'vegetables': ['carrot']\n\t * };\n\t *\n\t * _.merge(object, other, function(a, b) {\n\t * if (_.isArray(a)) {\n\t * return a.concat(b);\n\t * }\n\t * });\n\t * // => { 'fruits': ['apple', 'banana'], 'vegetables': ['beet', 'carrot'] }\n\t */\n\tvar merge = createAssigner(baseMerge);\n\t\n\tmodule.exports = merge;\n\n\n/***/ },\n/* 38 */\n/***/ function(module, exports, __webpack_require__) {\n\n\tvar arrayEach = __webpack_require__(39),\n\t baseMergeDeep = __webpack_require__(40),\n\t isArray = __webpack_require__(48),\n\t isArrayLike = __webpack_require__(43),\n\t isObject = __webpack_require__(52),\n\t isObjectLike = __webpack_require__(47),\n\t isTypedArray = __webpack_require__(60),\n\t keys = __webpack_require__(63);\n\t\n\t/**\n\t * The base implementation of `_.merge` without support for argument juggling,\n\t * multiple sources, and `this` binding `customizer` functions.\n\t *\n\t * @private\n\t * @param {Object} object The destination object.\n\t * @param {Object} source The source object.\n\t * @param {Function} [customizer] The function to customize merged values.\n\t * @param {Array} [stackA=[]] Tracks traversed source objects.\n\t * @param {Array} [stackB=[]] Associates values with source counterparts.\n\t * @returns {Object} Returns `object`.\n\t */\n\tfunction baseMerge(object, source, customizer, stackA, stackB) {\n\t if (!isObject(object)) {\n\t return object;\n\t }\n\t var isSrcArr = isArrayLike(source) && (isArray(source) || isTypedArray(source)),\n\t props = isSrcArr ? undefined : keys(source);\n\t\n\t arrayEach(props || source, function(srcValue, key) {\n\t if (props) {\n\t key = srcValue;\n\t srcValue = source[key];\n\t }\n\t if (isObjectLike(srcValue)) {\n\t stackA || (stackA = []);\n\t stackB || (stackB = []);\n\t baseMergeDeep(object, source, key, baseMerge, customizer, stackA, stackB);\n\t }\n\t else {\n\t var value = object[key],\n\t result = customizer ? customizer(value, srcValue, key, object, source) : undefined,\n\t isCommon = result === undefined;\n\t\n\t if (isCommon) {\n\t result = srcValue;\n\t }\n\t if ((result !== undefined || (isSrcArr && !(key in object))) &&\n\t (isCommon || (result === result ? (result !== value) : (value === value)))) {\n\t object[key] = result;\n\t }\n\t }\n\t });\n\t return object;\n\t}\n\t\n\tmodule.exports = baseMerge;\n\n\n/***/ },\n/* 39 */\n/***/ function(module, exports) {\n\n\t/**\n\t * A specialized version of `_.forEach` for arrays without support for callback\n\t * shorthands and `this` binding.\n\t *\n\t * @private\n\t * @param {Array} array The array to iterate over.\n\t * @param {Function} iteratee The function invoked per iteration.\n\t * @returns {Array} Returns `array`.\n\t */\n\tfunction arrayEach(array, iteratee) {\n\t var index = -1,\n\t length = array.length;\n\t\n\t while (++index < length) {\n\t if (iteratee(array[index], index, array) === false) {\n\t break;\n\t }\n\t }\n\t return array;\n\t}\n\t\n\tmodule.exports = arrayEach;\n\n\n/***/ },\n/* 40 */\n/***/ function(module, exports, __webpack_require__) {\n\n\tvar arrayCopy = __webpack_require__(41),\n\t isArguments = __webpack_require__(42),\n\t isArray = __webpack_require__(48),\n\t isArrayLike = __webpack_require__(43),\n\t isPlainObject = __webpack_require__(53),\n\t isTypedArray = __webpack_require__(60),\n\t toPlainObject = __webpack_require__(61);\n\t\n\t/**\n\t * A specialized version of `baseMerge` for arrays and objects which performs\n\t * deep merges and tracks traversed objects enabling objects with circular\n\t * references to be merged.\n\t *\n\t * @private\n\t * @param {Object} object The destination object.\n\t * @param {Object} source The source object.\n\t * @param {string} key The key of the value to merge.\n\t * @param {Function} mergeFunc The function to merge values.\n\t * @param {Function} [customizer] The function to customize merged values.\n\t * @param {Array} [stackA=[]] Tracks traversed source objects.\n\t * @param {Array} [stackB=[]] Associates values with source counterparts.\n\t * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.\n\t */\n\tfunction baseMergeDeep(object, source, key, mergeFunc, customizer, stackA, stackB) {\n\t var length = stackA.length,\n\t srcValue = source[key];\n\t\n\t while (length--) {\n\t if (stackA[length] == srcValue) {\n\t object[key] = stackB[length];\n\t return;\n\t }\n\t }\n\t var value = object[key],\n\t result = customizer ? customizer(value, srcValue, key, object, source) : undefined,\n\t isCommon = result === undefined;\n\t\n\t if (isCommon) {\n\t result = srcValue;\n\t if (isArrayLike(srcValue) && (isArray(srcValue) || isTypedArray(srcValue))) {\n\t result = isArray(value)\n\t ? value\n\t : (isArrayLike(value) ? arrayCopy(value) : []);\n\t }\n\t else if (isPlainObject(srcValue) || isArguments(srcValue)) {\n\t result = isArguments(value)\n\t ? toPlainObject(value)\n\t : (isPlainObject(value) ? value : {});\n\t }\n\t else {\n\t isCommon = false;\n\t }\n\t }\n\t // Add the source value to the stack of traversed objects and associate\n\t // it with its merged value.\n\t stackA.push(srcValue);\n\t stackB.push(result);\n\t\n\t if (isCommon) {\n\t // Recursively merge objects and arrays (susceptible to call stack limits).\n\t object[key] = mergeFunc(result, srcValue, customizer, stackA, stackB);\n\t } else if (result === result ? (result !== value) : (value === value)) {\n\t object[key] = result;\n\t }\n\t}\n\t\n\tmodule.exports = baseMergeDeep;\n\n\n/***/ },\n/* 41 */\n/***/ function(module, exports) {\n\n\t/**\n\t * Copies the values of `source` to `array`.\n\t *\n\t * @private\n\t * @param {Array} source The array to copy values from.\n\t * @param {Array} [array=[]] The array to copy values to.\n\t * @returns {Array} Returns `array`.\n\t */\n\tfunction arrayCopy(source, array) {\n\t var index = -1,\n\t length = source.length;\n\t\n\t array || (array = Array(length));\n\t while (++index < length) {\n\t array[index] = source[index];\n\t }\n\t return array;\n\t}\n\t\n\tmodule.exports = arrayCopy;\n\n\n/***/ },\n/* 42 */\n/***/ function(module, exports, __webpack_require__) {\n\n\tvar isArrayLike = __webpack_require__(43),\n\t isObjectLike = __webpack_require__(47);\n\t\n\t/** Used for native method references. */\n\tvar objectProto = Object.prototype;\n\t\n\t/** Used to check objects for own properties. */\n\tvar hasOwnProperty = objectProto.hasOwnProperty;\n\t\n\t/** Native method references. */\n\tvar propertyIsEnumerable = objectProto.propertyIsEnumerable;\n\t\n\t/**\n\t * Checks if `value` is classified as an `arguments` object.\n\t *\n\t * @static\n\t * @memberOf _\n\t * @category Lang\n\t * @param {*} value The value to check.\n\t * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.\n\t * @example\n\t *\n\t * _.isArguments(function() { return arguments; }());\n\t * // => true\n\t *\n\t * _.isArguments([1, 2, 3]);\n\t * // => false\n\t */\n\tfunction isArguments(value) {\n\t return isObjectLike(value) && isArrayLike(value) &&\n\t hasOwnProperty.call(value, 'callee') && !propertyIsEnumerable.call(value, 'callee');\n\t}\n\t\n\tmodule.exports = isArguments;\n\n\n/***/ },\n/* 43 */\n/***/ function(module, exports, __webpack_require__) {\n\n\tvar getLength = __webpack_require__(44),\n\t isLength = __webpack_require__(46);\n\t\n\t/**\n\t * Checks if `value` is array-like.\n\t *\n\t * @private\n\t * @param {*} value The value to check.\n\t * @returns {boolean} Returns `true` if `value` is array-like, else `false`.\n\t */\n\tfunction isArrayLike(value) {\n\t return value != null && isLength(getLength(value));\n\t}\n\t\n\tmodule.exports = isArrayLike;\n\n\n/***/ },\n/* 44 */\n/***/ function(module, exports, __webpack_require__) {\n\n\tvar baseProperty = __webpack_require__(45);\n\t\n\t/**\n\t * Gets the \"length\" property value of `object`.\n\t *\n\t * **Note:** This function is used to avoid a [JIT bug](https://bugs.webkit.org/show_bug.cgi?id=142792)\n\t * that affects Safari on at least iOS 8.1-8.3 ARM64.\n\t *\n\t * @private\n\t * @param {Object} object The object to query.\n\t * @returns {*} Returns the \"length\" value.\n\t */\n\tvar getLength = baseProperty('length');\n\t\n\tmodule.exports = getLength;\n\n\n/***/ },\n/* 45 */\n/***/ function(module, exports) {\n\n\t/**\n\t * The base implementation of `_.property` without support for deep paths.\n\t *\n\t * @private\n\t * @param {string} key The key of the property to get.\n\t * @returns {Function} Returns the new function.\n\t */\n\tfunction baseProperty(key) {\n\t return function(object) {\n\t return object == null ? undefined : object[key];\n\t };\n\t}\n\t\n\tmodule.exports = baseProperty;\n\n\n/***/ },\n/* 46 */\n/***/ function(module, exports) {\n\n\t/**\n\t * Used as the [maximum length](http://ecma-international.org/ecma-262/6.0/#sec-number.max_safe_integer)\n\t * of an array-like value.\n\t */\n\tvar MAX_SAFE_INTEGER = 9007199254740991;\n\t\n\t/**\n\t * Checks if `value` is a valid array-like length.\n\t *\n\t * **Note:** This function is based on [`ToLength`](http://ecma-international.org/ecma-262/6.0/#sec-tolength).\n\t *\n\t * @private\n\t * @param {*} value The value to check.\n\t * @returns {boolean} Returns `true` if `value` is a valid length, else `false`.\n\t */\n\tfunction isLength(value) {\n\t return typeof value == 'number' && value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER;\n\t}\n\t\n\tmodule.exports = isLength;\n\n\n/***/ },\n/* 47 */\n/***/ function(module, exports) {\n\n\t/**\n\t * Checks if `value` is object-like.\n\t *\n\t * @private\n\t * @param {*} value The value to check.\n\t * @returns {boolean} Returns `true` if `value` is object-like, else `false`.\n\t */\n\tfunction isObjectLike(value) {\n\t return !!value && typeof value == 'object';\n\t}\n\t\n\tmodule.exports = isObjectLike;\n\n\n/***/ },\n/* 48 */\n/***/ function(module, exports, __webpack_require__) {\n\n\tvar getNative = __webpack_require__(49),\n\t isLength = __webpack_require__(46),\n\t isObjectLike = __webpack_require__(47);\n\t\n\t/** `Object#toString` result references. */\n\tvar arrayTag = '[object Array]';\n\t\n\t/** Used for native method references. */\n\tvar objectProto = Object.prototype;\n\t\n\t/**\n\t * Used to resolve the [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)\n\t * of values.\n\t */\n\tvar objToString = objectProto.toString;\n\t\n\t/* Native method references for those with the same name as other `lodash` methods. */\n\tvar nativeIsArray = getNative(Array, 'isArray');\n\t\n\t/**\n\t * Checks if `value` is classified as an `Array` object.\n\t *\n\t * @static\n\t * @memberOf _\n\t * @category Lang\n\t * @param {*} value The value to check.\n\t * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.\n\t * @example\n\t *\n\t * _.isArray([1, 2, 3]);\n\t * // => true\n\t *\n\t * _.isArray(function() { return arguments; }());\n\t * // => false\n\t */\n\tvar isArray = nativeIsArray || function(value) {\n\t return isObjectLike(value) && isLength(value.length) && objToString.call(value) == arrayTag;\n\t};\n\t\n\tmodule.exports = isArray;\n\n\n/***/ },\n/* 49 */\n/***/ function(module, exports, __webpack_require__) {\n\n\tvar isNative = __webpack_require__(50);\n\t\n\t/**\n\t * Gets the native function at `key` of `object`.\n\t *\n\t * @private\n\t * @param {Object} object The object to query.\n\t * @param {string} key The key of the method to get.\n\t * @returns {*} Returns the function if it's native, else `undefined`.\n\t */\n\tfunction getNative(object, key) {\n\t var value = object == null ? undefined : object[key];\n\t return isNative(value) ? value : undefined;\n\t}\n\t\n\tmodule.exports = getNative;\n\n\n/***/ },\n/* 50 */\n/***/ function(module, exports, __webpack_require__) {\n\n\tvar isFunction = __webpack_require__(51),\n\t isObjectLike = __webpack_require__(47);\n\t\n\t/** Used to detect host constructors (Safari > 5). */\n\tvar reIsHostCtor = /^\\[object .+?Constructor\\]$/;\n\t\n\t/** Used for native method references. */\n\tvar objectProto = Object.prototype;\n\t\n\t/** Used to resolve the decompiled source of functions. */\n\tvar fnToString = Function.prototype.toString;\n\t\n\t/** Used to check objects for own properties. */\n\tvar hasOwnProperty = objectProto.hasOwnProperty;\n\t\n\t/** Used to detect if a method is native. */\n\tvar reIsNative = RegExp('^' +\n\t fnToString.call(hasOwnProperty).replace(/[\\\\^$.*+?()[\\]{}|]/g, '\\\\$&')\n\t .replace(/hasOwnProperty|(function).*?(?=\\\\\\()| for .+?(?=\\\\\\])/g, '$1.*?') + '$'\n\t);\n\t\n\t/**\n\t * Checks if `value` is a native function.\n\t *\n\t * @static\n\t * @memberOf _\n\t * @category Lang\n\t * @param {*} value The value to check.\n\t * @returns {boolean} Returns `true` if `value` is a native function, else `false`.\n\t * @example\n\t *\n\t * _.isNative(Array.prototype.push);\n\t * // => true\n\t *\n\t * _.isNative(_);\n\t * // => false\n\t */\n\tfunction isNative(value) {\n\t if (value == null) {\n\t return false;\n\t }\n\t if (isFunction(value)) {\n\t return reIsNative.test(fnToString.call(value));\n\t }\n\t return isObjectLike(value) && reIsHostCtor.test(value);\n\t}\n\t\n\tmodule.exports = isNative;\n\n\n/***/ },\n/* 51 */\n/***/ function(module, exports, __webpack_require__) {\n\n\tvar isObject = __webpack_require__(52);\n\t\n\t/** `Object#toString` result references. */\n\tvar funcTag = '[object Function]';\n\t\n\t/** Used for native method references. */\n\tvar objectProto = Object.prototype;\n\t\n\t/**\n\t * Used to resolve the [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)\n\t * of values.\n\t */\n\tvar objToString = objectProto.toString;\n\t\n\t/**\n\t * Checks if `value` is classified as a `Function` object.\n\t *\n\t * @static\n\t * @memberOf _\n\t * @category Lang\n\t * @param {*} value The value to check.\n\t * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.\n\t * @example\n\t *\n\t * _.isFunction(_);\n\t * // => true\n\t *\n\t * _.isFunction(/abc/);\n\t * // => false\n\t */\n\tfunction isFunction(value) {\n\t // The use of `Object#toString` avoids issues with the `typeof` operator\n\t // in older versions of Chrome and Safari which return 'function' for regexes\n\t // and Safari 8 which returns 'object' for typed array constructors.\n\t return isObject(value) && objToString.call(value) == funcTag;\n\t}\n\t\n\tmodule.exports = isFunction;\n\n\n/***/ },\n/* 52 */\n/***/ function(module, exports) {\n\n\t/**\n\t * Checks if `value` is the [language type](https://es5.github.io/#x8) of `Object`.\n\t * (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)\n\t *\n\t * @static\n\t * @memberOf _\n\t * @category Lang\n\t * @param {*} value The value to check.\n\t * @returns {boolean} Returns `true` if `value` is an object, else `false`.\n\t * @example\n\t *\n\t * _.isObject({});\n\t * // => true\n\t *\n\t * _.isObject([1, 2, 3]);\n\t * // => true\n\t *\n\t * _.isObject(1);\n\t * // => false\n\t */\n\tfunction isObject(value) {\n\t // Avoid a V8 JIT bug in Chrome 19-20.\n\t // See https://code.google.com/p/v8/issues/detail?id=2291 for more details.\n\t var type = typeof value;\n\t return !!value && (type == 'object' || type == 'function');\n\t}\n\t\n\tmodule.exports = isObject;\n\n\n/***/ },\n/* 53 */\n/***/ function(module, exports, __webpack_require__) {\n\n\tvar baseForIn = __webpack_require__(54),\n\t isArguments = __webpack_require__(42),\n\t isObjectLike = __webpack_require__(47);\n\t\n\t/** `Object#toString` result references. */\n\tvar objectTag = '[object Object]';\n\t\n\t/** Used for native method references. */\n\tvar objectProto = Object.prototype;\n\t\n\t/** Used to check objects for own properties. */\n\tvar hasOwnProperty = objectProto.hasOwnProperty;\n\t\n\t/**\n\t * Used to resolve the [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)\n\t * of values.\n\t */\n\tvar objToString = objectProto.toString;\n\t\n\t/**\n\t * Checks if `value` is a plain object, that is, an object created by the\n\t * `Object` constructor or one with a `[[Prototype]]` of `null`.\n\t *\n\t * **Note:** This method assumes objects created by the `Object` constructor\n\t * have no inherited enumerable properties.\n\t *\n\t * @static\n\t * @memberOf _\n\t * @category Lang\n\t * @param {*} value The value to check.\n\t * @returns {boolean} Returns `true` if `value` is a plain object, else `false`.\n\t * @example\n\t *\n\t * function Foo() {\n\t * this.a = 1;\n\t * }\n\t *\n\t * _.isPlainObject(new Foo);\n\t * // => false\n\t *\n\t * _.isPlainObject([1, 2, 3]);\n\t * // => false\n\t *\n\t * _.isPlainObject({ 'x': 0, 'y': 0 });\n\t * // => true\n\t *\n\t * _.isPlainObject(Object.create(null));\n\t * // => true\n\t */\n\tfunction isPlainObject(value) {\n\t var Ctor;\n\t\n\t // Exit early for non `Object` objects.\n\t if (!(isObjectLike(value) && objToString.call(value) == objectTag && !isArguments(value)) ||\n\t (!hasOwnProperty.call(value, 'constructor') && (Ctor = value.constructor, typeof Ctor == 'function' && !(Ctor instanceof Ctor)))) {\n\t return false;\n\t }\n\t // IE < 9 iterates inherited properties before own properties. If the first\n\t // iterated property is an object's own property then there are no inherited\n\t // enumerable properties.\n\t var result;\n\t // In most environments an object's own properties are iterated before\n\t // its inherited properties. If the last iterated property is an object's\n\t // own property then there are no inherited enumerable properties.\n\t baseForIn(value, function(subValue, key) {\n\t result = key;\n\t });\n\t return result === undefined || hasOwnProperty.call(value, result);\n\t}\n\t\n\tmodule.exports = isPlainObject;\n\n\n/***/ },\n/* 54 */\n/***/ function(module, exports, __webpack_require__) {\n\n\tvar baseFor = __webpack_require__(55),\n\t keysIn = __webpack_require__(58);\n\t\n\t/**\n\t * The base implementation of `_.forIn` without support for callback\n\t * shorthands and `this` binding.\n\t *\n\t * @private\n\t * @param {Object} object The object to iterate over.\n\t * @param {Function} iteratee The function invoked per iteration.\n\t * @returns {Object} Returns `object`.\n\t */\n\tfunction baseForIn(object, iteratee) {\n\t return baseFor(object, iteratee, keysIn);\n\t}\n\t\n\tmodule.exports = baseForIn;\n\n\n/***/ },\n/* 55 */\n/***/ function(module, exports, __webpack_require__) {\n\n\tvar createBaseFor = __webpack_require__(56);\n\t\n\t/**\n\t * The base implementation of `baseForIn` and `baseForOwn` which iterates\n\t * over `object` properties returned by `keysFunc` invoking `iteratee` for\n\t * each property. Iteratee functions may exit iteration early by explicitly\n\t * returning `false`.\n\t *\n\t * @private\n\t * @param {Object} object The object to iterate over.\n\t * @param {Function} iteratee The function invoked per iteration.\n\t * @param {Function} keysFunc The function to get the keys of `object`.\n\t * @returns {Object} Returns `object`.\n\t */\n\tvar baseFor = createBaseFor();\n\t\n\tmodule.exports = baseFor;\n\n\n/***/ },\n/* 56 */\n/***/ function(module, exports, __webpack_require__) {\n\n\tvar toObject = __webpack_require__(57);\n\t\n\t/**\n\t * Creates a base function for `_.forIn` or `_.forInRight`.\n\t *\n\t * @private\n\t * @param {boolean} [fromRight] Specify iterating from right to left.\n\t * @returns {Function} Returns the new base function.\n\t */\n\tfunction createBaseFor(fromRight) {\n\t return function(object, iteratee, keysFunc) {\n\t var iterable = toObject(object),\n\t props = keysFunc(object),\n\t length = props.length,\n\t index = fromRight ? length : -1;\n\t\n\t while ((fromRight ? index-- : ++index < length)) {\n\t var key = props[index];\n\t if (iteratee(iterable[key], key, iterable) === false) {\n\t break;\n\t }\n\t }\n\t return object;\n\t };\n\t}\n\t\n\tmodule.exports = createBaseFor;\n\n\n/***/ },\n/* 57 */\n/***/ function(module, exports, __webpack_require__) {\n\n\tvar isObject = __webpack_require__(52);\n\t\n\t/**\n\t * Converts `value` to an object if it's not one.\n\t *\n\t * @private\n\t * @param {*} value The value to process.\n\t * @returns {Object} Returns the object.\n\t */\n\tfunction toObject(value) {\n\t return isObject(value) ? value : Object(value);\n\t}\n\t\n\tmodule.exports = toObject;\n\n\n/***/ },\n/* 58 */\n/***/ function(module, exports, __webpack_require__) {\n\n\tvar isArguments = __webpack_require__(42),\n\t isArray = __webpack_require__(48),\n\t isIndex = __webpack_require__(59),\n\t isLength = __webpack_require__(46),\n\t isObject = __webpack_require__(52);\n\t\n\t/** Used for native method references. */\n\tvar objectProto = Object.prototype;\n\t\n\t/** Used to check objects for own properties. */\n\tvar hasOwnProperty = objectProto.hasOwnProperty;\n\t\n\t/**\n\t * Creates an array of the own and inherited enumerable property names of `object`.\n\t *\n\t * **Note:** Non-object values are coerced to objects.\n\t *\n\t * @static\n\t * @memberOf _\n\t * @category Object\n\t * @param {Object} object The object to query.\n\t * @returns {Array} Returns the array of property names.\n\t * @example\n\t *\n\t * function Foo() {\n\t * this.a = 1;\n\t * this.b = 2;\n\t * }\n\t *\n\t * Foo.prototype.c = 3;\n\t *\n\t * _.keysIn(new Foo);\n\t * // => ['a', 'b', 'c'] (iteration order is not guaranteed)\n\t */\n\tfunction keysIn(object) {\n\t if (object == null) {\n\t return [];\n\t }\n\t if (!isObject(object)) {\n\t object = Object(object);\n\t }\n\t var length = object.length;\n\t length = (length && isLength(length) &&\n\t (isArray(object) || isArguments(object)) && length) || 0;\n\t\n\t var Ctor = object.constructor,\n\t index = -1,\n\t isProto = typeof Ctor == 'function' && Ctor.prototype === object,\n\t result = Array(length),\n\t skipIndexes = length > 0;\n\t\n\t while (++index < length) {\n\t result[index] = (index + '');\n\t }\n\t for (var key in object) {\n\t if (!(skipIndexes && isIndex(key, length)) &&\n\t !(key == 'constructor' && (isProto || !hasOwnProperty.call(object, key)))) {\n\t result.push(key);\n\t }\n\t }\n\t return result;\n\t}\n\t\n\tmodule.exports = keysIn;\n\n\n/***/ },\n/* 59 */\n/***/ function(module, exports) {\n\n\t/** Used to detect unsigned integer values. */\n\tvar reIsUint = /^\\d+$/;\n\t\n\t/**\n\t * Used as the [maximum length](http://ecma-international.org/ecma-262/6.0/#sec-number.max_safe_integer)\n\t * of an array-like value.\n\t */\n\tvar MAX_SAFE_INTEGER = 9007199254740991;\n\t\n\t/**\n\t * Checks if `value` is a valid array-like index.\n\t *\n\t * @private\n\t * @param {*} value The value to check.\n\t * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index.\n\t * @returns {boolean} Returns `true` if `value` is a valid index, else `false`.\n\t */\n\tfunction isIndex(value, length) {\n\t value = (typeof value == 'number' || reIsUint.test(value)) ? +value : -1;\n\t length = length == null ? MAX_SAFE_INTEGER : length;\n\t return value > -1 && value % 1 == 0 && value < length;\n\t}\n\t\n\tmodule.exports = isIndex;\n\n\n/***/ },\n/* 60 */\n/***/ function(module, exports, __webpack_require__) {\n\n\tvar isLength = __webpack_require__(46),\n\t isObjectLike = __webpack_require__(47);\n\t\n\t/** `Object#toString` result references. */\n\tvar argsTag = '[object Arguments]',\n\t arrayTag = '[object Array]',\n\t boolTag = '[object Boolean]',\n\t dateTag = '[object Date]',\n\t errorTag = '[object Error]',\n\t funcTag = '[object Function]',\n\t mapTag = '[object Map]',\n\t numberTag = '[object Number]',\n\t objectTag = '[object Object]',\n\t regexpTag = '[object RegExp]',\n\t setTag = '[object Set]',\n\t stringTag = '[object String]',\n\t weakMapTag = '[object WeakMap]';\n\t\n\tvar arrayBufferTag = '[object ArrayBuffer]',\n\t float32Tag = '[object Float32Array]',\n\t float64Tag = '[object Float64Array]',\n\t int8Tag = '[object Int8Array]',\n\t int16Tag = '[object Int16Array]',\n\t int32Tag = '[object Int32Array]',\n\t uint8Tag = '[object Uint8Array]',\n\t uint8ClampedTag = '[object Uint8ClampedArray]',\n\t uint16Tag = '[object Uint16Array]',\n\t uint32Tag = '[object Uint32Array]';\n\t\n\t/** Used to identify `toStringTag` values of typed arrays. */\n\tvar typedArrayTags = {};\n\ttypedArrayTags[float32Tag] = typedArrayTags[float64Tag] =\n\ttypedArrayTags[int8Tag] = typedArrayTags[int16Tag] =\n\ttypedArrayTags[int32Tag] = typedArrayTags[uint8Tag] =\n\ttypedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] =\n\ttypedArrayTags[uint32Tag] = true;\n\ttypedArrayTags[argsTag] = typedArrayTags[arrayTag] =\n\ttypedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] =\n\ttypedArrayTags[dateTag] = typedArrayTags[errorTag] =\n\ttypedArrayTags[funcTag] = typedArrayTags[mapTag] =\n\ttypedArrayTags[numberTag] = typedArrayTags[objectTag] =\n\ttypedArrayTags[regexpTag] = typedArrayTags[setTag] =\n\ttypedArrayTags[stringTag] = typedArrayTags[weakMapTag] = false;\n\t\n\t/** Used for native method references. */\n\tvar objectProto = Object.prototype;\n\t\n\t/**\n\t * Used to resolve the [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)\n\t * of values.\n\t */\n\tvar objToString = objectProto.toString;\n\t\n\t/**\n\t * Checks if `value` is classified as a typed array.\n\t *\n\t * @static\n\t * @memberOf _\n\t * @category Lang\n\t * @param {*} value The value to check.\n\t * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.\n\t * @example\n\t *\n\t * _.isTypedArray(new Uint8Array);\n\t * // => true\n\t *\n\t * _.isTypedArray([]);\n\t * // => false\n\t */\n\tfunction isTypedArray(value) {\n\t return isObjectLike(value) && isLength(value.length) && !!typedArrayTags[objToString.call(value)];\n\t}\n\t\n\tmodule.exports = isTypedArray;\n\n\n/***/ },\n/* 61 */\n/***/ function(module, exports, __webpack_require__) {\n\n\tvar baseCopy = __webpack_require__(62),\n\t keysIn = __webpack_require__(58);\n\t\n\t/**\n\t * Converts `value` to a plain object flattening inherited enumerable\n\t * properties of `value` to own properties of the plain object.\n\t *\n\t * @static\n\t * @memberOf _\n\t * @category Lang\n\t * @param {*} value The value to convert.\n\t * @returns {Object} Returns the converted plain object.\n\t * @example\n\t *\n\t * function Foo() {\n\t * this.b = 2;\n\t * }\n\t *\n\t * Foo.prototype.c = 3;\n\t *\n\t * _.assign({ 'a': 1 }, new Foo);\n\t * // => { 'a': 1, 'b': 2 }\n\t *\n\t * _.assign({ 'a': 1 }, _.toPlainObject(new Foo));\n\t * // => { 'a': 1, 'b': 2, 'c': 3 }\n\t */\n\tfunction toPlainObject(value) {\n\t return baseCopy(value, keysIn(value));\n\t}\n\t\n\tmodule.exports = toPlainObject;\n\n\n/***/ },\n/* 62 */\n/***/ function(module, exports) {\n\n\t/**\n\t * Copies properties of `source` to `object`.\n\t *\n\t * @private\n\t * @param {Object} source The object to copy properties from.\n\t * @param {Array} props The property names to copy.\n\t * @param {Object} [object={}] The object to copy properties to.\n\t * @returns {Object} Returns `object`.\n\t */\n\tfunction baseCopy(source, props, object) {\n\t object || (object = {});\n\t\n\t var index = -1,\n\t length = props.length;\n\t\n\t while (++index < length) {\n\t var key = props[index];\n\t object[key] = source[key];\n\t }\n\t return object;\n\t}\n\t\n\tmodule.exports = baseCopy;\n\n\n/***/ },\n/* 63 */\n/***/ function(module, exports, __webpack_require__) {\n\n\tvar getNative = __webpack_require__(49),\n\t isArrayLike = __webpack_require__(43),\n\t isObject = __webpack_require__(52),\n\t shimKeys = __webpack_require__(64);\n\t\n\t/* Native method references for those with the same name as other `lodash` methods. */\n\tvar nativeKeys = getNative(Object, 'keys');\n\t\n\t/**\n\t * Creates an array of the own enumerable property names of `object`.\n\t *\n\t * **Note:** Non-object values are coerced to objects. See the\n\t * [ES spec](http://ecma-international.org/ecma-262/6.0/#sec-object.keys)\n\t * for more details.\n\t *\n\t * @static\n\t * @memberOf _\n\t * @category Object\n\t * @param {Object} object The object to query.\n\t * @returns {Array} Returns the array of property names.\n\t * @example\n\t *\n\t * function Foo() {\n\t * this.a = 1;\n\t * this.b = 2;\n\t * }\n\t *\n\t * Foo.prototype.c = 3;\n\t *\n\t * _.keys(new Foo);\n\t * // => ['a', 'b'] (iteration order is not guaranteed)\n\t *\n\t * _.keys('hi');\n\t * // => ['0', '1']\n\t */\n\tvar keys = !nativeKeys ? shimKeys : function(object) {\n\t var Ctor = object == null ? undefined : object.constructor;\n\t if ((typeof Ctor == 'function' && Ctor.prototype === object) ||\n\t (typeof object != 'function' && isArrayLike(object))) {\n\t return shimKeys(object);\n\t }\n\t return isObject(object) ? nativeKeys(object) : [];\n\t};\n\t\n\tmodule.exports = keys;\n\n\n/***/ },\n/* 64 */\n/***/ function(module, exports, __webpack_require__) {\n\n\tvar isArguments = __webpack_require__(42),\n\t isArray = __webpack_require__(48),\n\t isIndex = __webpack_require__(59),\n\t isLength = __webpack_require__(46),\n\t keysIn = __webpack_require__(58);\n\t\n\t/** Used for native method references. */\n\tvar objectProto = Object.prototype;\n\t\n\t/** Used to check objects for own properties. */\n\tvar hasOwnProperty = objectProto.hasOwnProperty;\n\t\n\t/**\n\t * A fallback implementation of `Object.keys` which creates an array of the\n\t * own enumerable property names of `object`.\n\t *\n\t * @private\n\t * @param {Object} object The object to query.\n\t * @returns {Array} Returns the array of property names.\n\t */\n\tfunction shimKeys(object) {\n\t var props = keysIn(object),\n\t propsLength = props.length,\n\t length = propsLength && object.length;\n\t\n\t var allowIndexes = !!length && isLength(length) &&\n\t (isArray(object) || isArguments(object));\n\t\n\t var index = -1,\n\t result = [];\n\t\n\t while (++index < propsLength) {\n\t var key = props[index];\n\t if ((allowIndexes && isIndex(key, length)) || hasOwnProperty.call(object, key)) {\n\t result.push(key);\n\t }\n\t }\n\t return result;\n\t}\n\t\n\tmodule.exports = shimKeys;\n\n\n/***/ },\n/* 65 */\n/***/ function(module, exports, __webpack_require__) {\n\n\tvar bindCallback = __webpack_require__(66),\n\t isIterateeCall = __webpack_require__(68),\n\t restParam = __webpack_require__(69);\n\t\n\t/**\n\t * Creates a `_.assign`, `_.defaults`, or `_.merge` function.\n\t *\n\t * @private\n\t * @param {Function} assigner The function to assign values.\n\t * @returns {Function} Returns the new assigner function.\n\t */\n\tfunction createAssigner(assigner) {\n\t return restParam(function(object, sources) {\n\t var index = -1,\n\t length = object == null ? 0 : sources.length,\n\t customizer = length > 2 ? sources[length - 2] : undefined,\n\t guard = length > 2 ? sources[2] : undefined,\n\t thisArg = length > 1 ? sources[length - 1] : undefined;\n\t\n\t if (typeof customizer == 'function') {\n\t customizer = bindCallback(customizer, thisArg, 5);\n\t length -= 2;\n\t } else {\n\t customizer = typeof thisArg == 'function' ? thisArg : undefined;\n\t length -= (customizer ? 1 : 0);\n\t }\n\t if (guard && isIterateeCall(sources[0], sources[1], guard)) {\n\t customizer = length < 3 ? undefined : customizer;\n\t length = 1;\n\t }\n\t while (++index < length) {\n\t var source = sources[index];\n\t if (source) {\n\t assigner(object, source, customizer);\n\t }\n\t }\n\t return object;\n\t });\n\t}\n\t\n\tmodule.exports = createAssigner;\n\n\n/***/ },\n/* 66 */\n/***/ function(module, exports, __webpack_require__) {\n\n\tvar identity = __webpack_require__(67);\n\t\n\t/**\n\t * A specialized version of `baseCallback` which only supports `this` binding\n\t * and specifying the number of arguments to provide to `func`.\n\t *\n\t * @private\n\t * @param {Function} func The function to bind.\n\t * @param {*} thisArg The `this` binding of `func`.\n\t * @param {number} [argCount] The number of arguments to provide to `func`.\n\t * @returns {Function} Returns the callback.\n\t */\n\tfunction bindCallback(func, thisArg, argCount) {\n\t if (typeof func != 'function') {\n\t return identity;\n\t }\n\t if (thisArg === undefined) {\n\t return func;\n\t }\n\t switch (argCount) {\n\t case 1: return function(value) {\n\t return func.call(thisArg, value);\n\t };\n\t case 3: return function(value, index, collection) {\n\t return func.call(thisArg, value, index, collection);\n\t };\n\t case 4: return function(accumulator, value, index, collection) {\n\t return func.call(thisArg, accumulator, value, index, collection);\n\t };\n\t case 5: return function(value, other, key, object, source) {\n\t return func.call(thisArg, value, other, key, object, source);\n\t };\n\t }\n\t return function() {\n\t return func.apply(thisArg, arguments);\n\t };\n\t}\n\t\n\tmodule.exports = bindCallback;\n\n\n/***/ },\n/* 67 */\n/***/ function(module, exports) {\n\n\t/**\n\t * This method returns the first argument provided to it.\n\t *\n\t * @static\n\t * @memberOf _\n\t * @category Utility\n\t * @param {*} value Any value.\n\t * @returns {*} Returns `value`.\n\t * @example\n\t *\n\t * var object = { 'user': 'fred' };\n\t *\n\t * _.identity(object) === object;\n\t * // => true\n\t */\n\tfunction identity(value) {\n\t return value;\n\t}\n\t\n\tmodule.exports = identity;\n\n\n/***/ },\n/* 68 */\n/***/ function(module, exports, __webpack_require__) {\n\n\tvar isArrayLike = __webpack_require__(43),\n\t isIndex = __webpack_require__(59),\n\t isObject = __webpack_require__(52);\n\t\n\t/**\n\t * Checks if the provided arguments are from an iteratee call.\n\t *\n\t * @private\n\t * @param {*} value The potential iteratee value argument.\n\t * @param {*} index The potential iteratee index or key argument.\n\t * @param {*} object The potential iteratee object argument.\n\t * @returns {boolean} Returns `true` if the arguments are from an iteratee call, else `false`.\n\t */\n\tfunction isIterateeCall(value, index, object) {\n\t if (!isObject(object)) {\n\t return false;\n\t }\n\t var type = typeof index;\n\t if (type == 'number'\n\t ? (isArrayLike(object) && isIndex(index, object.length))\n\t : (type == 'string' && index in object)) {\n\t var other = object[index];\n\t return value === value ? (value === other) : (other !== other);\n\t }\n\t return false;\n\t}\n\t\n\tmodule.exports = isIterateeCall;\n\n\n/***/ },\n/* 69 */\n/***/ function(module, exports) {\n\n\t/** Used as the `TypeError` message for \"Functions\" methods. */\n\tvar FUNC_ERROR_TEXT = 'Expected a function';\n\t\n\t/* Native method references for those with the same name as other `lodash` methods. */\n\tvar nativeMax = Math.max;\n\t\n\t/**\n\t * Creates a function that invokes `func` with the `this` binding of the\n\t * created function and arguments from `start` and beyond provided as an array.\n\t *\n\t * **Note:** This method is based on the [rest parameter](https://developer.mozilla.org/Web/JavaScript/Reference/Functions/rest_parameters).\n\t *\n\t * @static\n\t * @memberOf _\n\t * @category Function\n\t * @param {Function} func The function to apply a rest parameter to.\n\t * @param {number} [start=func.length-1] The start position of the rest parameter.\n\t * @returns {Function} Returns the new function.\n\t * @example\n\t *\n\t * var say = _.restParam(function(what, names) {\n\t * return what + ' ' + _.initial(names).join(', ') +\n\t * (_.size(names) > 1 ? ', & ' : '') + _.last(names);\n\t * });\n\t *\n\t * say('hello', 'fred', 'barney', 'pebbles');\n\t * // => 'hello fred, barney, & pebbles'\n\t */\n\tfunction restParam(func, start) {\n\t if (typeof func != 'function') {\n\t throw new TypeError(FUNC_ERROR_TEXT);\n\t }\n\t start = nativeMax(start === undefined ? (func.length - 1) : (+start || 0), 0);\n\t return function() {\n\t var args = arguments,\n\t index = -1,\n\t length = nativeMax(args.length - start, 0),\n\t rest = Array(length);\n\t\n\t while (++index < length) {\n\t rest[index] = args[start + index];\n\t }\n\t switch (start) {\n\t case 0: return func.call(this, rest);\n\t case 1: return func.call(this, args[0], rest);\n\t case 2: return func.call(this, args[0], args[1], rest);\n\t }\n\t var otherArgs = Array(start + 1);\n\t index = -1;\n\t while (++index < start) {\n\t otherArgs[index] = args[index];\n\t }\n\t otherArgs[start] = rest;\n\t return func.apply(this, otherArgs);\n\t };\n\t}\n\t\n\tmodule.exports = restParam;\n\n\n/***/ },\n/* 70 */\n/***/ function(module, exports, __webpack_require__) {\n\n\t\"use strict\";\n\t\n\tObject.defineProperty(exports, \"__esModule\", {\n\t value: true\n\t});\n\t\n\tfunction _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { \"default\": obj }; }\n\t\n\tvar _cv_utils = __webpack_require__(7);\n\t\n\tvar _cv_utils2 = _interopRequireDefault(_cv_utils);\n\t\n\tvar FrameGrabber = {};\n\t\n\tFrameGrabber.create = function (inputStream, canvas) {\n\t var _that = {},\n\t _streamConfig = inputStream.getConfig(),\n\t _video_size = _cv_utils2[\"default\"].imageRef(inputStream.getRealWidth(), inputStream.getRealHeight()),\n\t _canvasSize = inputStream.getCanvasSize(),\n\t _size = _cv_utils2[\"default\"].imageRef(inputStream.getWidth(), inputStream.getHeight()),\n\t topRight = inputStream.getTopRight(),\n\t _sx = topRight.x,\n\t _sy = topRight.y,\n\t _canvas,\n\t _ctx = null,\n\t _data = null;\n\t\n\t _canvas = canvas ? canvas : document.createElement(\"canvas\");\n\t _canvas.width = _canvasSize.x;\n\t _canvas.height = _canvasSize.y;\n\t _ctx = _canvas.getContext(\"2d\");\n\t _data = new Uint8Array(_size.x * _size.y);\n\t console.log(\"FrameGrabber\", JSON.stringify({\n\t size: _size,\n\t topRight: topRight,\n\t videoSize: _video_size,\n\t canvasSize: _canvasSize\n\t }));\n\t\n\t /**\n\t * Uses the given array as frame-buffer\n\t */\n\t _that.attachData = function (data) {\n\t _data = data;\n\t };\n\t\n\t /**\n\t * Returns the used frame-buffer\n\t */\n\t _that.getData = function () {\n\t return _data;\n\t };\n\t\n\t /**\n\t * Fetches a frame from the input-stream and puts into the frame-buffer.\n\t * The image-data is converted to gray-scale and then half-sampled if configured.\n\t */\n\t _that.grab = function () {\n\t var doHalfSample = _streamConfig.halfSample,\n\t frame = inputStream.getFrame(),\n\t ctxData;\n\t if (frame) {\n\t _ctx.drawImage(frame, 0, 0, _canvasSize.x, _canvasSize.y);\n\t ctxData = _ctx.getImageData(_sx, _sy, _size.x, _size.y).data;\n\t if (doHalfSample) {\n\t _cv_utils2[\"default\"].grayAndHalfSampleFromCanvasData(ctxData, _size, _data);\n\t } else {\n\t _cv_utils2[\"default\"].computeGray(ctxData, _data, _streamConfig);\n\t }\n\t return true;\n\t } else {\n\t return false;\n\t }\n\t };\n\t\n\t _that.getSize = function () {\n\t return _size;\n\t };\n\t\n\t return _that;\n\t};\n\t\n\texports[\"default\"] = FrameGrabber;\n\tmodule.exports = exports[\"default\"];\n\n/***/ },\n/* 71 */\n/***/ function(module, exports) {\n\n\t\"use strict\";\n\t\n\tObject.defineProperty(exports, \"__esModule\", {\n\t value: true\n\t});\n\texports[\"default\"] = {\n\t inputStream: {\n\t name: \"Live\",\n\t type: \"LiveStream\",\n\t constraints: {\n\t width: 640,\n\t height: 480,\n\t minAspectRatio: 0,\n\t maxAspectRatio: 100,\n\t facing: \"environment\" // or user\n\t },\n\t area: {\n\t top: \"0%\",\n\t right: \"0%\",\n\t left: \"0%\",\n\t bottom: \"0%\"\n\t },\n\t singleChannel: false // true: only the red color-channel is read\n\t },\n\t tracking: false,\n\t debug: false,\n\t controls: false,\n\t locate: true,\n\t numOfWorkers: 4,\n\t visual: {\n\t show: true\n\t },\n\t decoder: {\n\t drawBoundingBox: false,\n\t showFrequency: false,\n\t drawScanline: false,\n\t showPattern: false,\n\t readers: ['code_128_reader']\n\t },\n\t locator: {\n\t halfSample: true,\n\t patchSize: \"medium\", // x-small, small, medium, large, x-large\n\t showCanvas: false,\n\t showPatches: false,\n\t showFoundPatches: false,\n\t showSkeleton: false,\n\t showLabels: false,\n\t showPatchLabels: false,\n\t showRemainingPatchLabels: false,\n\t boxFromPatches: {\n\t showTransformed: false,\n\t showTransformedBox: false,\n\t showBB: false\n\t }\n\t }\n\t};\n\tmodule.exports = exports[\"default\"];\n\n/***/ },\n/* 72 */\n/***/ function(module, exports) {\n\n\t\"use strict\";\n\t\n\tObject.defineProperty(exports, \"__esModule\", {\n\t value: true\n\t});\n\t\n\texports[\"default\"] = (function () {\n\t var events = {};\n\t\n\t function getEvent(eventName) {\n\t if (!events[eventName]) {\n\t events[eventName] = {\n\t subscribers: []\n\t };\n\t }\n\t return events[eventName];\n\t }\n\t\n\t function clearEvents() {\n\t events = {};\n\t }\n\t\n\t function publishSubscription(subscription, data) {\n\t if (subscription.async) {\n\t setTimeout(function () {\n\t subscription.callback(data);\n\t }, 4);\n\t } else {\n\t subscription.callback(data);\n\t }\n\t }\n\t\n\t function _subscribe(event, callback, async) {\n\t var subscription;\n\t\n\t if (typeof callback === \"function\") {\n\t subscription = {\n\t callback: callback,\n\t async: async\n\t };\n\t } else {\n\t subscription = callback;\n\t if (!subscription.callback) {\n\t throw \"Callback was not specified on options\";\n\t }\n\t }\n\t\n\t getEvent(event).subscribers.push(subscription);\n\t }\n\t\n\t return {\n\t subscribe: function subscribe(event, callback, async) {\n\t return _subscribe(event, callback, async);\n\t },\n\t publish: function publish(eventName, data) {\n\t var event = getEvent(eventName),\n\t subscribers = event.subscribers;\n\t\n\t event.subscribers = subscribers.filter(function (subscriber) {\n\t publishSubscription(subscriber, data);\n\t return !subscriber.once;\n\t });\n\t },\n\t once: function once(event, callback, async) {\n\t _subscribe(event, {\n\t callback: callback,\n\t async: async,\n\t once: true\n\t });\n\t },\n\t unsubscribe: function unsubscribe(eventName, callback) {\n\t var event;\n\t\n\t if (eventName) {\n\t event = getEvent(eventName);\n\t if (event && callback) {\n\t event.subscribers = event.subscribers.filter(function (subscriber) {\n\t return subscriber.callback !== callback;\n\t });\n\t } else {\n\t event.subscribers = [];\n\t }\n\t } else {\n\t clearEvents();\n\t }\n\t }\n\t };\n\t})();\n\t\n\t;\n\tmodule.exports = exports[\"default\"];\n\n/***/ },\n/* 73 */\n/***/ function(module, exports, __webpack_require__) {\n\n\t'use strict';\n\t\n\tObject.defineProperty(exports, '__esModule', {\n\t value: true\n\t});\n\tvar merge = __webpack_require__(37);\n\t\n\tvar streamRef, loadedDataHandler;\n\t\n\t/**\n\t * Wraps browser-specific getUserMedia\n\t * @param {Object} constraints\n\t * @param {Object} success Callback\n\t * @param {Object} failure Callback\n\t */\n\tfunction getUserMedia(constraints, success, failure) {\n\t if (typeof navigator.getUserMedia !== 'undefined') {\n\t navigator.getUserMedia(constraints, function (stream) {\n\t streamRef = stream;\n\t var videoSrc = window.URL && window.URL.createObjectURL(stream) || stream;\n\t success.apply(null, [videoSrc]);\n\t }, failure);\n\t } else {\n\t failure(new TypeError(\"getUserMedia not available\"));\n\t }\n\t}\n\t\n\tfunction loadedData(video, callback) {\n\t var attempts = 10;\n\t\n\t function checkVideo() {\n\t if (attempts > 0) {\n\t if (video.videoWidth > 0 && video.videoHeight > 0) {\n\t console.log(video.videoWidth + \"px x \" + video.videoHeight + \"px\");\n\t callback();\n\t } else {\n\t window.setTimeout(checkVideo, 500);\n\t }\n\t } else {\n\t callback('Unable to play video stream. Is webcam working?');\n\t }\n\t attempts--;\n\t }\n\t checkVideo();\n\t}\n\t\n\t/**\n\t * Tries to attach the camera-stream to a given video-element\n\t * and calls the callback function when the content is ready\n\t * @param {Object} constraints\n\t * @param {Object} video\n\t * @param {Object} callback\n\t */\n\tfunction initCamera(constraints, video, callback) {\n\t getUserMedia(constraints, function (src) {\n\t video.src = src;\n\t if (loadedDataHandler) {\n\t video.removeEventListener(\"loadeddata\", loadedDataHandler, false);\n\t }\n\t loadedDataHandler = loadedData.bind(null, video, callback);\n\t video.addEventListener('loadeddata', loadedDataHandler, false);\n\t video.play();\n\t }, function (e) {\n\t callback(e);\n\t });\n\t}\n\t\n\t/**\n\t * Normalizes the incoming constraints to satisfy the current browser\n\t * @param config\n\t * @param cb Callback which is called whenever constraints are created\n\t * @returns {*}\n\t */\n\tfunction normalizeConstraints(config, cb) {\n\t var constraints = {\n\t audio: false,\n\t video: true\n\t },\n\t videoConstraints = merge({\n\t width: 640,\n\t height: 480,\n\t minAspectRatio: 0,\n\t maxAspectRatio: 100,\n\t facing: \"environment\"\n\t }, config);\n\t\n\t if (typeof MediaStreamTrack !== 'undefined' && typeof MediaStreamTrack.getSources !== 'undefined') {\n\t MediaStreamTrack.getSources(function (sourceInfos) {\n\t var videoSourceId;\n\t for (var i = 0; i != sourceInfos.length; ++i) {\n\t var sourceInfo = sourceInfos[i];\n\t if (sourceInfo.kind == \"video\" && sourceInfo.facing == videoConstraints.facing) {\n\t videoSourceId = sourceInfo.id;\n\t }\n\t }\n\t constraints.video = {\n\t mandatory: {\n\t minWidth: videoConstraints.width,\n\t minHeight: videoConstraints.height,\n\t minAspectRatio: videoConstraints.minAspectRatio,\n\t maxAspectRatio: videoConstraints.maxAspectRatio\n\t },\n\t optional: [{\n\t sourceId: videoSourceId\n\t }]\n\t };\n\t return cb(constraints);\n\t });\n\t } else {\n\t constraints.video = {\n\t mediaSource: \"camera\",\n\t width: { min: videoConstraints.width, max: videoConstraints.width },\n\t height: { min: videoConstraints.height, max: videoConstraints.height },\n\t require: [\"width\", \"height\"]\n\t };\n\t return cb(constraints);\n\t }\n\t}\n\t\n\t/**\n\t * Requests the back-facing camera of the user. The callback is called\n\t * whenever the stream is ready to be consumed, or if an error occures.\n\t * @param {Object} video\n\t * @param {Object} callback\n\t */\n\tfunction _request(video, videoConstraints, callback) {\n\t normalizeConstraints(videoConstraints, function (constraints) {\n\t initCamera(constraints, video, callback);\n\t });\n\t}\n\t\n\texports['default'] = {\n\t request: function request(video, constraints, callback) {\n\t _request(video, constraints, callback);\n\t },\n\t release: function release() {\n\t var tracks = streamRef && streamRef.getVideoTracks();\n\t if (tracks.length) {\n\t tracks[0].stop();\n\t }\n\t streamRef = null;\n\t }\n\t};\n\tmodule.exports = exports['default'];\n\n/***/ },\n/* 74 */\n/***/ function(module, exports, __webpack_require__) {\n\n\t'use strict';\n\t\n\tObject.defineProperty(exports, '__esModule', {\n\t value: true\n\t});\n\t\n\tfunction _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }\n\t\n\tvar _image_debug = __webpack_require__(24);\n\t\n\tvar _image_debug2 = _interopRequireDefault(_image_debug);\n\t\n\tfunction contains(codeResult, list) {\n\t if (list) {\n\t return list.some(function (item) {\n\t return Object.keys(item).every(function (key) {\n\t return item[key] === codeResult[key];\n\t });\n\t });\n\t }\n\t return false;\n\t}\n\t\n\tfunction passesFilter(codeResult, filter) {\n\t if (typeof filter === 'function') {\n\t return filter(codeResult);\n\t }\n\t return true;\n\t}\n\t\n\texports['default'] = {\n\t create: function create(config) {\n\t var canvas = document.createElement(\"canvas\"),\n\t ctx = canvas.getContext(\"2d\"),\n\t results = [],\n\t capacity = config.capacity || 20,\n\t capture = config.capture === true;\n\t\n\t function matchesConstraints(codeResult) {\n\t return capacity && codeResult && !contains(codeResult, config.blacklist) && passesFilter(codeResult, config.filter);\n\t }\n\t\n\t return {\n\t addResult: function addResult(data, imageSize, codeResult) {\n\t var result = {};\n\t\n\t if (matchesConstraints(codeResult)) {\n\t capacity--;\n\t result.codeResult = codeResult;\n\t if (capture) {\n\t canvas.width = imageSize.x;\n\t canvas.height = imageSize.y;\n\t _image_debug2['default'].drawImage(data, imageSize, ctx);\n\t result.frame = canvas.toDataURL();\n\t }\n\t results.push(result);\n\t }\n\t },\n\t getResults: function getResults() {\n\t return results;\n\t }\n\t };\n\t }\n\t};\n\tmodule.exports = exports['default'];\n\n/***/ }\n/******/ ])\n});\n;\n\n\n/** WEBPACK FOOTER **\n ** quagga.min.js\n **/"," \t// The module cache\n \tvar installedModules = {};\n\n \t// The require function\n \tfunction __webpack_require__(moduleId) {\n\n \t\t// Check if module is in cache\n \t\tif(installedModules[moduleId])\n \t\t\treturn installedModules[moduleId].exports;\n\n \t\t// Create a new module (and put it into the cache)\n \t\tvar module = installedModules[moduleId] = {\n \t\t\texports: {},\n \t\t\tid: moduleId,\n \t\t\tloaded: false\n \t\t};\n\n \t\t// Execute the module function\n \t\tmodules[moduleId].call(module.exports, module, module.exports, __webpack_require__);\n\n \t\t// Flag the module as loaded\n \t\tmodule.loaded = true;\n\n \t\t// Return the exports of the module\n \t\treturn module.exports;\n \t}\n\n\n \t// expose the modules object (__webpack_modules__)\n \t__webpack_require__.m = modules;\n\n \t// expose the module cache\n \t__webpack_require__.c = installedModules;\n\n \t// __webpack_public_path__\n \t__webpack_require__.p = \"/\";\n\n \t// Load entry module and return exports\n \treturn __webpack_require__(0);\n\n\n\n/** WEBPACK FOOTER **\n ** webpack/bootstrap bbe7819afe77c7859a4a\n **/","import TypeDefs from './typedefs';\nimport InputStream from './input_stream';\nimport ImageWrapper from './image_wrapper';\nimport BarcodeLocator from './barcode_locator';\nimport BarcodeDecoder from './barcode_decoder';\nimport FrameGrabber from './frame_grabber';\nimport Config from './config';\nimport Events from './events';\nimport CameraAccess from './camera_access';\nimport ImageDebug from './image_debug';\nimport {vec2} from 'gl-matrix';\nimport ResultCollector from './result_collector';\n\nconst merge = require('lodash/object/merge');\n\nvar _inputStream,\n _framegrabber,\n _stopped,\n _canvasContainer = {\n ctx : {\n image : null,\n overlay : null\n },\n dom : {\n image : null,\n overlay : null\n }\n },\n _inputImageWrapper,\n _boxSize,\n _decoder,\n _workerPool = [],\n _onUIThread = true,\n _resultCollector,\n _config = {};\n\nfunction initializeData(imageWrapper) {\n initBuffers(imageWrapper);\n _decoder = BarcodeDecoder.create(_config.decoder, _inputImageWrapper);\n}\n\nfunction initConfig() {\n if (typeof document !== \"undefined\") {\n var vis = [{\n node: document.querySelector(\"div[data-controls]\"),\n prop: _config.controls\n }, {\n node: _canvasContainer.dom.overlay,\n prop: _config.visual.show\n }];\n\n for (var i = 0; i < vis.length; i++) {\n if (vis[i].node) {\n if (vis[i].prop === true) {\n vis[i].node.style.display = \"block\";\n } else {\n vis[i].node.style.display = \"none\";\n }\n }\n }\n }\n}\n\nfunction initInputStream(cb) {\n var video;\n if (_config.inputStream.type == \"VideoStream\") {\n video = document.createElement(\"video\");\n _inputStream = InputStream.createVideoStream(video);\n } else if (_config.inputStream.type == \"ImageStream\") {\n _inputStream = InputStream.createImageStream();\n } else if (_config.inputStream.type == \"LiveStream\") {\n var $viewport = document.querySelector(\"#interactive.viewport\");\n if ($viewport) {\n video = $viewport.querySelector(\"video\");\n if (!video) {\n video = document.createElement(\"video\");\n $viewport.appendChild(video);\n }\n }\n _inputStream = InputStream.createLiveStream(video);\n CameraAccess.request(video, _config.inputStream.constraints, function(err) {\n if (!err) {\n _inputStream.trigger(\"canrecord\");\n } else {\n return cb(err);\n }\n });\n }\n\n _inputStream.setAttribute(\"preload\", \"auto\");\n _inputStream.setAttribute(\"autoplay\", true);\n _inputStream.setInputStream(_config.inputStream);\n _inputStream.addEventListener(\"canrecord\", canRecord.bind(undefined, cb));\n}\n\nfunction canRecord(cb) {\n BarcodeLocator.checkImageConstraints(_inputStream, _config.locator);\n initCanvas();\n _framegrabber = FrameGrabber.create(_inputStream, _canvasContainer.dom.image);\n initConfig();\n\n if (_config.numOfWorkers > 0) {\n initWorkers(function() {\n console.log(\"Workers created\");\n ready(cb);\n });\n } else {\n initializeData();\n ready(cb);\n }\n}\n\nfunction ready(cb){\n _inputStream.play();\n cb();\n}\n\nfunction initCanvas() {\n if (typeof document !== \"undefined\") {\n var $viewport = document.querySelector(\"#interactive.viewport\");\n _canvasContainer.dom.image = document.querySelector(\"canvas.imgBuffer\");\n if (!_canvasContainer.dom.image) {\n _canvasContainer.dom.image = document.createElement(\"canvas\");\n _canvasContainer.dom.image.className = \"imgBuffer\";\n if ($viewport && _config.inputStream.type == \"ImageStream\") {\n $viewport.appendChild(_canvasContainer.dom.image);\n }\n }\n _canvasContainer.ctx.image = _canvasContainer.dom.image.getContext(\"2d\");\n _canvasContainer.dom.image.width = _inputStream.getCanvasSize().x;\n _canvasContainer.dom.image.height = _inputStream.getCanvasSize().y;\n\n _canvasContainer.dom.overlay = document.querySelector(\"canvas.drawingBuffer\");\n if (!_canvasContainer.dom.overlay) {\n _canvasContainer.dom.overlay = document.createElement(\"canvas\");\n _canvasContainer.dom.overlay.className = \"drawingBuffer\";\n if ($viewport) {\n $viewport.appendChild(_canvasContainer.dom.overlay);\n }\n var clearFix = document.createElement(\"br\");\n clearFix.setAttribute(\"clear\", \"all\");\n if ($viewport) {\n $viewport.appendChild(clearFix);\n }\n }\n _canvasContainer.ctx.overlay = _canvasContainer.dom.overlay.getContext(\"2d\");\n _canvasContainer.dom.overlay.width = _inputStream.getCanvasSize().x;\n _canvasContainer.dom.overlay.height = _inputStream.getCanvasSize().y;\n }\n}\n\nfunction initBuffers(imageWrapper) {\n if (imageWrapper) {\n _inputImageWrapper = imageWrapper;\n } else {\n _inputImageWrapper = new ImageWrapper({\n x : _inputStream.getWidth(),\n y : _inputStream.getHeight()\n });\n }\n\n console.log(_inputImageWrapper.size);\n _boxSize = [\n vec2.clone([0, 0]),\n vec2.clone([0, _inputImageWrapper.size.y]),\n vec2.clone([_inputImageWrapper.size.x, _inputImageWrapper.size.y]),\n vec2.clone([_inputImageWrapper.size.x, 0])\n ];\n BarcodeLocator.init(_inputImageWrapper, _config.locator);\n}\n\nfunction getBoundingBoxes() {\n if (_config.locate) {\n return BarcodeLocator.locate();\n } else {\n return [[\n vec2.clone(_boxSize[0]),\n vec2.clone(_boxSize[1]),\n vec2.clone(_boxSize[2]),\n vec2.clone(_boxSize[3])]];\n }\n}\n\nfunction transformResult(result) {\n var topRight = _inputStream.getTopRight(),\n xOffset = topRight.x,\n yOffset = topRight.y,\n i;\n\n if (!result || (xOffset === 0 && yOffset === 0)) {\n return;\n }\n\n\n if (result.line && result.line.length === 2) {\n moveLine(result.line);\n }\n if (result.boxes && result.boxes.length > 0) {\n for (i = 0; i < result.boxes.length; i++) {\n moveBox(result.boxes[i]);\n }\n }\n\n function moveBox(box) {\n var corner = box.length;\n\n while(corner--) {\n box[corner][0] += xOffset;\n box[corner][1] += yOffset;\n }\n }\n\n function moveLine(line) {\n line[0].x += xOffset;\n line[0].y += yOffset;\n line[1].x += xOffset;\n line[1].y += yOffset;\n }\n}\n\nfunction publishResult(result, imageData) {\n if (_onUIThread) {\n transformResult(result);\n if (imageData && result && result.codeResult) {\n if (_resultCollector) {\n _resultCollector.addResult(imageData, _inputStream.getCanvasSize(), result.codeResult);\n }\n }\n }\n\n Events.publish(\"processed\", result);\n if (result && result.codeResult) {\n Events.publish(\"detected\", result);\n }\n}\n\nfunction locateAndDecode() {\n var result,\n boxes;\n\n boxes = getBoundingBoxes();\n if (boxes) {\n result = _decoder.decodeFromBoundingBoxes(boxes);\n result = result || {};\n result.boxes = boxes;\n publishResult(result, _inputImageWrapper.data);\n } else {\n publishResult();\n }\n}\n\nfunction update() {\n var availableWorker;\n\n if (_onUIThread) {\n if (_workerPool.length > 0) {\n availableWorker = _workerPool.filter(function(workerThread) {\n return !workerThread.busy;\n })[0];\n if (availableWorker) {\n _framegrabber.attachData(availableWorker.imageData);\n } else {\n return; // all workers are busy\n }\n } else {\n _framegrabber.attachData(_inputImageWrapper.data);\n }\n if (_framegrabber.grab()) {\n if (availableWorker) {\n availableWorker.busy = true;\n availableWorker.worker.postMessage({\n cmd: 'process',\n imageData: availableWorker.imageData\n }, [availableWorker.imageData.buffer]);\n } else {\n locateAndDecode();\n }\n }\n } else {\n locateAndDecode();\n }\n}\n\nfunction start() {\n _stopped = false;\n ( function frame() {\n if (!_stopped) {\n update();\n if (_onUIThread && _config.inputStream.type == \"LiveStream\") {\n window.requestAnimFrame(frame);\n }\n }\n }());\n}\n\nfunction initWorkers(cb) {\n var i;\n _workerPool = [];\n\n for (i = 0; i < _config.numOfWorkers; i++) {\n initWorker(workerInitialized);\n }\n\n function workerInitialized(workerThread) {\n _workerPool.push(workerThread);\n if (_workerPool.length >= _config.numOfWorkers){\n cb();\n }\n }\n}\n\nfunction initWorker(cb) {\n var blobURL,\n workerThread = {\n worker: undefined,\n imageData: new Uint8Array(_inputStream.getWidth() * _inputStream.getHeight()),\n busy: true\n };\n\n blobURL = generateWorkerBlob();\n workerThread.worker = new Worker(blobURL);\n\n workerThread.worker.onmessage = function(e) {\n if (e.data.event === 'initialized') {\n URL.revokeObjectURL(blobURL);\n workerThread.busy = false;\n workerThread.imageData = new Uint8Array(e.data.imageData);\n console.log(\"Worker initialized\");\n return cb(workerThread);\n } else if (e.data.event === 'processed') {\n workerThread.imageData = new Uint8Array(e.data.imageData);\n workerThread.busy = false;\n publishResult(e.data.result, workerThread.imageData);\n } else if (e.data.event === 'error') {\n console.log(\"Worker error: \" + e.data.message);\n }\n };\n\n workerThread.worker.postMessage({\n cmd: 'init',\n size: {x: _inputStream.getWidth(), y: _inputStream.getHeight()},\n imageData: workerThread.imageData,\n config: _config\n }, [workerThread.imageData.buffer]);\n}\n\n\nfunction workerInterface(factory) {\n window = self;\n if (factory) {\n /* jshint ignore:start */\n var Quagga = factory();\n if (!Quagga) {\n self.postMessage({'event': 'error', message: 'Quagga could not be created'});\n return;\n }\n /* jshint ignore:end */\n }\n /* jshint ignore:start */\n var imageWrapper;\n\n self.onmessage = function(e) {\n if (e.data.cmd === 'init') {\n var config = e.data.config;\n config.numOfWorkers = 0;\n imageWrapper = new Quagga.ImageWrapper({\n x : e.data.size.x,\n y : e.data.size.y\n }, new Uint8Array(e.data.imageData));\n Quagga.init(config, ready, imageWrapper);\n Quagga.onProcessed(onProcessed);\n } else if (e.data.cmd === 'process') {\n imageWrapper.data = new Uint8Array(e.data.imageData);\n Quagga.start();\n } else if (e.data.cmd === 'setReaders') {\n Quagga.setReaders(e.data.readers);\n }\n };\n\n function onProcessed(result) {\n self.postMessage({'event': 'processed', imageData: imageWrapper.data, result: result}, [imageWrapper.data.buffer]);\n }\n\n function ready() {\n self.postMessage({'event': 'initialized', imageData: imageWrapper.data}, [imageWrapper.data.buffer]);\n }\n /* jshint ignore:end */\n}\n\nfunction generateWorkerBlob() {\n var blob,\n factorySource;\n\n /* jshint ignore:start */\n if (typeof __factorySource__ !== 'undefined') {\n factorySource = __factorySource__;\n }\n /* jshint ignore:end */\n\n blob = new Blob(['(' + workerInterface.toString() + ')(' + factorySource + ');'],\n {type : 'text/javascript'});\n\n return window.URL.createObjectURL(blob);\n}\n\nfunction setReaders(readers) {\n if (_decoder) {\n _decoder.setReaders(readers);\n } else if (_onUIThread && _workerPool.length > 0) {\n _workerPool.forEach(function(workerThread) {\n workerThread.worker.postMessage({cmd: 'setReaders', readers: readers});\n });\n }\n}\n\nexport default {\n init : function(config, cb, imageWrapper) {\n _config = merge({}, Config, config);\n if (imageWrapper) {\n _onUIThread = false;\n initializeData(imageWrapper);\n return cb();\n } else {\n initInputStream(cb);\n }\n },\n start : function() {\n start();\n },\n stop : function() {\n _stopped = true;\n _workerPool.forEach(function(workerThread) {\n workerThread.worker.terminate();\n console.log(\"Worker terminated!\");\n });\n _workerPool.length = 0;\n if (_config.inputStream.type === \"LiveStream\") {\n CameraAccess.release();\n _inputStream.clearEventHandlers();\n }\n },\n pause: function() {\n _stopped = true;\n },\n onDetected : function(callback) {\n Events.subscribe(\"detected\", callback);\n },\n offDetected: function(callback) {\n Events.unsubscribe(\"detected\", callback);\n },\n onProcessed: function(callback) {\n Events.subscribe(\"processed\", callback);\n },\n offProcessed: function(callback) {\n Events.unsubscribe(\"processed\", callback);\n },\n setReaders: function(readers) {\n setReaders(readers);\n },\n registerResultCollector: function(resultCollector) {\n if (resultCollector && typeof resultCollector.addResult === 'function') {\n _resultCollector = resultCollector;\n }\n },\n canvas : _canvasContainer,\n decodeSingle : function(config, resultCallback) {\n config = merge({\n inputStream: {\n type : \"ImageStream\",\n sequence : false,\n size: 800,\n src: config.src\n },\n numOfWorkers: 1,\n locator: {\n halfSample: false\n }\n }, config);\n this.init(config, function() {\n Events.once(\"processed\", function(result) {\n _stopped = true;\n resultCallback.call(null, result);\n }, true);\n start();\n });\n },\n ImageWrapper: ImageWrapper,\n ImageDebug: ImageDebug,\n ResultCollector: ResultCollector\n};\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/quagga.js\n **/","/*\n * typedefs.js\n * Normalizes browser-specific prefixes\n */\n\n if (typeof window !== 'undefined') {\n window.requestAnimFrame = (function () {\n return window.requestAnimationFrame ||\n window.webkitRequestAnimationFrame ||\n window.mozRequestAnimationFrame ||\n window.oRequestAnimationFrame ||\n window.msRequestAnimationFrame ||\n function (/* function FrameRequestCallback */ callback, /* DOMElement Element */ element) {\n window.setTimeout(callback, 1000 / 60);\n };\n })();\n\n navigator.getUserMedia = navigator.getUserMedia || navigator.webkitGetUserMedia || navigator.mozGetUserMedia || navigator.msGetUserMedia;\n window.URL = window.URL || window.webkitURL || window.mozURL || window.msURL;\n }\n Math.imul = Math.imul || function(a, b) {\n var ah = (a >>> 16) & 0xffff,\n al = a & 0xffff,\n bh = (b >>> 16) & 0xffff,\n bl = b & 0xffff;\n // the shift by 0 fixes the sign on the high part\n // the final |0 converts the unsigned value into a signed value\n return ((al * bl) + (((ah * bl + al * bh) << 16) >>> 0)|0);\n };\n\nexport default {\n \n}\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/typedefs.js\n **/","import ImageLoader from './image_loader';\n\nvar InputStream = {};\nInputStream.createVideoStream = function(video) {\n var that = {},\n _config = null,\n _eventNames = ['canrecord', 'ended'],\n _eventHandlers = {},\n _calculatedWidth,\n _calculatedHeight,\n _topRight = {x: 0, y: 0},\n _canvasSize = {x: 0, y: 0};\n\n function initSize() {\n var width = video.videoWidth,\n height = video.videoHeight;\n\n _calculatedWidth = _config.size ? width/height > 1 ? _config.size : Math.floor((width/height) * _config.size) : width;\n _calculatedHeight = _config.size ? width/height > 1 ? Math.floor((height/width) * _config.size) : _config.size : height;\n\n _canvasSize.x = _calculatedWidth;\n _canvasSize.y = _calculatedHeight;\n }\n\n that.getRealWidth = function() {\n return video.videoWidth;\n };\n\n that.getRealHeight = function() {\n return video.videoHeight;\n };\n\n that.getWidth = function() {\n return _calculatedWidth;\n };\n\n that.getHeight = function() {\n return _calculatedHeight;\n };\n\n that.setWidth = function(width) {\n _calculatedWidth = width;\n };\n\n that.setHeight = function(height) {\n _calculatedHeight = height;\n };\n\n that.setInputStream = function(config) {\n _config = config;\n video.src = (typeof config.src !== 'undefined') ? config.src : '';\n };\n\n that.ended = function() {\n return video.ended;\n };\n\n that.getConfig = function() {\n return _config;\n };\n\n that.setAttribute = function(name, value) {\n video.setAttribute(name, value);\n };\n\n that.pause = function() {\n video.pause();\n };\n\n that.play = function() {\n video.play();\n };\n\n that.setCurrentTime = function(time) {\n if (_config.type !== \"LiveStream\")\n video.currentTime = time;\n };\n\n that.addEventListener = function(event, f, bool) {\n if (_eventNames.indexOf(event) !== -1) {\n if (!_eventHandlers[event]) {\n _eventHandlers[event] = [];\n }\n _eventHandlers[event].push(f);\n } else {\n video.addEventListener(event, f, bool);\n }\n };\n\n that.clearEventHandlers = function() {\n _eventNames.forEach(function(eventName) {\n var handlers = _eventHandlers[eventName];\n if (handlers && handlers.length > 0) {\n handlers.forEach(function(handler) {\n video.removeEventListener(eventName, handler);\n });\n }\n });\n };\n\n that.trigger = function(eventName, args) {\n var j,\n handlers = _eventHandlers[eventName];\n\n if (eventName === 'canrecord') {\n initSize();\n }\n if (handlers && handlers.length > 0) {\n for ( j = 0; j < handlers.length; j++) {\n handlers[j].apply(that, args);\n }\n }\n };\n\n that.setTopRight = function(topRight) {\n _topRight.x = topRight.x;\n _topRight.y = topRight.y;\n };\n\n that.getTopRight = function() {\n return _topRight;\n };\n\n that.setCanvasSize = function(size) {\n _canvasSize.x = size.x;\n _canvasSize.y = size.y;\n };\n\n that.getCanvasSize = function() {\n return _canvasSize;\n };\n\n that.getFrame = function() {\n return video;\n };\n\n return that;\n};\n\nInputStream.createLiveStream = function(video) {\n video.setAttribute(\"autoplay\", true);\n var that = InputStream.createVideoStream(video);\n\n that.ended = function() {\n return false;\n };\n\n return that;\n};\n\nInputStream.createImageStream = function() {\n var that = {};\n var _config = null;\n\n var width = 0,\n height = 0,\n frameIdx = 0,\n paused = true,\n loaded = false,\n imgArray = null,\n size = 0,\n offset = 1,\n baseUrl = null,\n ended = false,\n calculatedWidth,\n calculatedHeight,\n _eventNames = ['canrecord', 'ended'],\n _eventHandlers = {},\n _topRight = {x: 0, y: 0},\n _canvasSize = {x: 0, y: 0};\n\n function loadImages() {\n loaded = false;\n ImageLoader.load(baseUrl, function(imgs) {\n imgArray = imgs;\n width = imgs[0].width;\n height = imgs[0].height;\n calculatedWidth = _config.size ? width/height > 1 ? _config.size : Math.floor((width/height) * _config.size) : width;\n calculatedHeight = _config.size ? width/height > 1 ? Math.floor((height/width) * _config.size) : _config.size : height;\n _canvasSize.x = calculatedWidth;\n _canvasSize.y = calculatedHeight;\n loaded = true;\n frameIdx = 0;\n setTimeout(function() {\n publishEvent(\"canrecord\", []);\n }, 0);\n }, offset, size, _config.sequence);\n }\n\n function publishEvent(eventName, args) {\n var j,\n handlers = _eventHandlers[eventName];\n\n if (handlers && handlers.length > 0) {\n for ( j = 0; j < handlers.length; j++) {\n handlers[j].apply(that, args);\n }\n }\n }\n\n\n that.trigger = publishEvent;\n\n that.getWidth = function() {\n return calculatedWidth;\n };\n\n that.getHeight = function() {\n return calculatedHeight;\n };\n\n that.setWidth = function(width) {\n calculatedWidth = width;\n };\n\n that.setHeight = function(height) {\n calculatedHeight = height;\n };\n\n that.getRealWidth = function() {\n return width;\n };\n\n that.getRealHeight = function() {\n return height;\n };\n\n that.setInputStream = function(stream) {\n _config = stream;\n if (stream.sequence === false) {\n baseUrl = stream.src;\n size = 1;\n } else {\n baseUrl = stream.src;\n size = stream.length;\n }\n loadImages();\n };\n\n that.ended = function() {\n return ended;\n };\n\n that.setAttribute = function() {};\n\n that.getConfig = function() {\n return _config;\n };\n\n that.pause = function() {\n paused = true;\n };\n\n that.play = function() {\n paused = false;\n };\n\n that.setCurrentTime = function(time) {\n frameIdx = time;\n };\n\n that.addEventListener = function(event, f) {\n if (_eventNames.indexOf(event) !== -1) {\n if (!_eventHandlers[event]) {\n _eventHandlers[event] = [];\n }\n _eventHandlers[event].push(f);\n }\n };\n\n that.setTopRight = function(topRight) {\n _topRight.x = topRight.x;\n _topRight.y = topRight.y;\n };\n\n that.getTopRight = function() {\n return _topRight;\n };\n\n that.setCanvasSize = function(size) {\n _canvasSize.x = size.x;\n _canvasSize.y = size.y;\n };\n\n that.getCanvasSize = function() {\n return _canvasSize;\n };\n\n that.getFrame = function() {\n var frame;\n\n if (!loaded){\n return null;\n }\n if (!paused) {\n frame = imgArray[frameIdx];\n if (frameIdx < (size - 1)) {\n frameIdx++;\n } else {\n setTimeout(function() {\n ended = true;\n publishEvent(\"ended\", []);\n }, 0);\n }\n }\n return frame;\n };\n\n return that;\n};\n\nexport default InputStream;\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/input_stream.js\n **/","var ImageLoader = {};\nImageLoader.load = function(directory, callback, offset, size, sequence) {\n var htmlImagesSrcArray = new Array(size),\n htmlImagesArray = new Array(htmlImagesSrcArray.length),\n i,\n img,\n num;\n\n if (sequence === false) {\n htmlImagesSrcArray[0] = directory;\n } else {\n for ( i = 0; i < htmlImagesSrcArray.length; i++) {\n num = (offset + i);\n htmlImagesSrcArray[i] = directory + \"image-\" + (\"00\" + num).slice(-3) + \".jpg\";\n }\n }\n htmlImagesArray.notLoaded = [];\n htmlImagesArray.addImage = function(img) {\n htmlImagesArray.notLoaded.push(img);\n };\n htmlImagesArray.loaded = function(loadedImg) {\n var notloadedImgs = htmlImagesArray.notLoaded;\n for (var x = 0; x < notloadedImgs.length; x++) {\n if (notloadedImgs[x] == loadedImg) {\n notloadedImgs.splice(x, 1);\n for (var y = 0; y < htmlImagesSrcArray.length; y++) {\n var imgName = htmlImagesSrcArray[y].substr(htmlImagesSrcArray[y].lastIndexOf(\"/\"));\n if (loadedImg.src.lastIndexOf(imgName) != -1) {\n htmlImagesArray[y] = loadedImg;\n break;\n }\n }\n break;\n }\n }\n if (notloadedImgs.length === 0) {\n console.log(\"Images loaded\");\n callback.apply(null, [htmlImagesArray]);\n }\n };\n\n for ( i = 0; i < htmlImagesSrcArray.length; i++) {\n img = new Image();\n htmlImagesArray.addImage(img);\n addOnloadHandler(img, htmlImagesArray);\n img.src = htmlImagesSrcArray[i];\n }\n};\n\nfunction addOnloadHandler(img, htmlImagesArray) {\n img.onload = function() {\n htmlImagesArray.loaded(this);\n };\n}\n\nexport default (ImageLoader);\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/image_loader.js\n **/","import SubImage from './subImage';\nimport CVUtils from './cv_utils';\nimport ArrayHelper from './array_helper';\nimport {vec2, mat2} from 'gl-matrix';\n\n/**\n * Represents a basic image combining the data and size.\n * In addition, some methods for manipulation are contained.\n * @param size {x,y} The size of the image in pixel\n * @param data {Array} If given, a flat array containing the pixel data\n * @param ArrayType {Type} If given, the desired DataType of the Array (may be typed/non-typed)\n * @param initialize {Boolean} Indicating if the array should be initialized on creation.\n * @returns {ImageWrapper}\n */\nfunction ImageWrapper(size, data, ArrayType, initialize) {\n if (!data) {\n if (ArrayType) {\n this.data = new ArrayType(size.x * size.y);\n if (ArrayType === Array && initialize) {\n ArrayHelper.init(this.data, 0);\n }\n } else {\n this.data = new Uint8Array(size.x * size.y);\n if (Uint8Array === Array && initialize) {\n ArrayHelper.init(this.data, 0);\n }\n }\n\n } else {\n this.data = data;\n }\n this.size = size;\n}\n\n/**\n * tests if a position is within the image with a given offset\n * @param imgRef {x, y} The location to test\n * @param border Number the padding value in pixel\n * @returns {Boolean} true if location inside the image's border, false otherwise\n * @see cvd/image.h\n */\nImageWrapper.prototype.inImageWithBorder = function(imgRef, border) {\n return (imgRef.x >= border) && (imgRef.y >= border) && (imgRef.x < (this.size.x - border)) && (imgRef.y < (this.size.y - border));\n};\n\n/**\n * Transforms an image according to the given affine-transformation matrix.\n * @param inImg ImageWrapper a image containing the information to be extracted.\n * @param outImg ImageWrapper the image to be filled. The whole image out image is filled by the in image.\n * @param M mat2 the matrix used to map point in the out matrix to those in the in matrix\n * @param inOrig vec2 origin in the in image\n * @param outOrig vec2 origin in the out image\n * @returns Number the number of pixels not in the in image\n * @see cvd/vision.h\n */\nImageWrapper.transform = function(inImg, outImg, M, inOrig, outOrig) {\n var w = outImg.size.x, h = outImg.size.y, iw = inImg.size.x, ih = inImg.size.y;\n var across = vec2.clone([M[0], M[2]]);\n var down = vec2.clone([M[1], M[3]]);\n var defaultValue = 0;\n\n var p0 = vec2.subtract(inOrig, mat2.xVec2(M, outOrig, vec2.clone()), vec2.clone());\n\n var min_x = p0[0], min_y = p0[1];\n var max_x = min_x, max_y = min_y;\n var p, i, j;\n\n var sampleFunc = ImageWrapper.sample;\n\n if (across[0] < 0)\n min_x += w * across[0];\n else\n max_x += w * across[0];\n\n if (down[0] < 0)\n min_x += h * down[0];\n else\n max_x += h * down[0];\n\n if (across[1] < 0)\n min_y += w * across[1];\n else\n max_y += w * across[1];\n\n if (down[1] < 0)\n min_y += h * down[1];\n else\n max_y += h * down[1];\n\n var carrigeReturn = vec2.subtract(down, vec2.scale(across, w, vec2.clone()), vec2.clone());\n\n if (min_x >= 0 && min_y >= 0 && max_x < iw - 1 && max_y < ih - 1) {\n p = p0;\n for ( i = 0; i < h; ++i, vec2.add(p, carrigeReturn))\n for ( j = 0; j < w; ++j, vec2.add(p, across))\n outImg.set(j, i, sampleFunc(inImg, p[0], p[1]));\n return 0;\n } else {\n var x_bound = iw - 1;\n var y_bound = ih - 1;\n var count = 0;\n p = p0;\n for ( i = 0; i < h; ++i, vec2.add(p, carrigeReturn)) {\n for ( j = 0; j < w; ++j, vec2.add(p, across)) {\n if (0 <= p[0] && 0 <= p[1] && p[0] < x_bound && p[1] < y_bound) {\n outImg.set(j, i, sampleFunc(inImg, p[0], p[1]));\n } else {\n outImg.set(j, i, defaultValue); ++count;\n }\n }\n }\n return count;\n }\n};\n\n/**\n * Performs bilinear sampling\n * @param inImg Image to extract sample from\n * @param x the x-coordinate\n * @param y the y-coordinate\n * @returns the sampled value\n * @see cvd/vision.h\n */\nImageWrapper.sample = function(inImg, x, y) {\n var lx = Math.floor(x);\n var ly = Math.floor(y);\n var w = inImg.size.x;\n var base = ly * inImg.size.x + lx;\n var a = inImg.data[base + 0];\n var b = inImg.data[base + 1];\n var c = inImg.data[base + w];\n var d = inImg.data[base + w + 1];\n var e = a - b;\n x -= lx;\n y -= ly;\n\n var result = Math.floor(x * (y * (e - c + d) - e) + y * (c - a) + a);\n return result;\n};\n\n/**\n * Initializes a given array. Sets each element to zero.\n * @param array {Array} The array to initialize\n */\nImageWrapper.clearArray = function(array) {\n var l = array.length;\n while (l--) {\n array[l] = 0;\n }\n};\n\n/**\n * Creates a {SubImage} from the current image ({this}).\n * @param from {ImageRef} The position where to start the {SubImage} from. (top-left corner)\n * @param size {ImageRef} The size of the resulting image\n * @returns {SubImage} A shared part of the original image\n */\nImageWrapper.prototype.subImage = function(from, size) {\n return new SubImage(from, size, this);\n};\n\n/**\n * Creates an {ImageWrapper) and copies the needed underlying image-data area\n * @param imageWrapper {ImageWrapper} The target {ImageWrapper} where the data should be copied\n * @param from {ImageRef} The location where to copy from (top-left location)\n */\nImageWrapper.prototype.subImageAsCopy = function(imageWrapper, from) {\n var sizeY = imageWrapper.size.y, sizeX = imageWrapper.size.x;\n var x, y;\n for ( x = 0; x < sizeX; x++) {\n for ( y = 0; y < sizeY; y++) {\n imageWrapper.data[y * sizeX + x] = this.data[(from.y + y) * this.size.x + from.x + x];\n }\n }\n};\n\nImageWrapper.prototype.copyTo = function(imageWrapper) {\n var length = this.data.length, srcData = this.data, dstData = imageWrapper.data;\n\n while (length--) {\n dstData[length] = srcData[length];\n }\n};\n\n/**\n * Retrieves a given pixel position from the image\n * @param x {Number} The x-position\n * @param y {Number} The y-position\n * @returns {Number} The grayscale value at the pixel-position\n */\nImageWrapper.prototype.get = function(x, y) {\n return this.data[y * this.size.x + x];\n};\n\n/**\n * Retrieves a given pixel position from the image\n * @param x {Number} The x-position\n * @param y {Number} The y-position\n * @returns {Number} The grayscale value at the pixel-position\n */\nImageWrapper.prototype.getSafe = function(x, y) {\n var i;\n\n if (!this.indexMapping) {\n this.indexMapping = {\n x : [],\n y : []\n };\n for (i = 0; i < this.size.x; i++) {\n this.indexMapping.x[i] = i;\n this.indexMapping.x[i + this.size.x] = i;\n }\n for (i = 0; i < this.size.y; i++) {\n this.indexMapping.y[i] = i;\n this.indexMapping.y[i + this.size.y] = i;\n }\n }\n return this.data[(this.indexMapping.y[y + this.size.y]) * this.size.x + this.indexMapping.x[x + this.size.x]];\n};\n\n/**\n * Sets a given pixel position in the image\n * @param x {Number} The x-position\n * @param y {Number} The y-position\n * @param value {Number} The grayscale value to set\n * @returns {ImageWrapper} The Image itself (for possible chaining)\n */\nImageWrapper.prototype.set = function(x, y, value) {\n this.data[y * this.size.x + x] = value;\n return this;\n};\n\n/**\n * Sets the border of the image (1 pixel) to zero\n */\nImageWrapper.prototype.zeroBorder = function() {\n var i, width = this.size.x, height = this.size.y, data = this.data;\n for ( i = 0; i < width; i++) {\n data[i] = data[(height - 1) * width + i] = 0;\n }\n for ( i = 1; i < height - 1; i++) {\n data[i * width] = data[i * width + (width - 1)] = 0;\n }\n};\n\n/**\n * Inverts a binary image in place\n */\nImageWrapper.prototype.invert = function() {\n var data = this.data, length = data.length;\n\n while (length--) {\n data[length] = data[length] ? 0 : 1;\n }\n\n};\n\nImageWrapper.prototype.convolve = function(kernel) {\n var x, y, kx, ky, kSize = (kernel.length / 2) | 0, accu = 0;\n for ( y = 0; y < this.size.y; y++) {\n for ( x = 0; x < this.size.x; x++) {\n accu = 0;\n for ( ky = -kSize; ky <= kSize; ky++) {\n for ( kx = -kSize; kx <= kSize; kx++) {\n accu += kernel[ky+kSize][kx + kSize] * this.getSafe(x + kx, y + ky);\n }\n }\n this.data[y * this.size.x + x] = accu;\n }\n }\n};\n\nImageWrapper.prototype.moments = function(labelcount) {\n var data = this.data,\n x,\n y,\n height = this.size.y,\n width = this.size.x,\n val,\n ysq,\n labelsum = [],\n i,\n label,\n mu11,\n mu02,\n mu20,\n x_,\n y_,\n tmp,\n result = [],\n PI = Math.PI,\n PI_4 = PI / 4;\n\n if (labelcount <= 0) {\n return result;\n }\n\n for ( i = 0; i < labelcount; i++) {\n labelsum[i] = {\n m00 : 0,\n m01 : 0,\n m10 : 0,\n m11 : 0,\n m02 : 0,\n m20 : 0,\n theta : 0,\n rad : 0\n };\n }\n\n for ( y = 0; y < height; y++) {\n ysq = y * y;\n for ( x = 0; x < width; x++) {\n val = data[y * width + x];\n if (val > 0) {\n label = labelsum[val - 1];\n label.m00 += 1;\n label.m01 += y;\n label.m10 += x;\n label.m11 += x * y;\n label.m02 += ysq;\n label.m20 += x * x;\n }\n }\n }\n\n for ( i = 0; i < labelcount; i++) {\n label = labelsum[i];\n if (!isNaN(label.m00) && label.m00 !== 0) {\n x_ = label.m10 / label.m00;\n y_ = label.m01 / label.m00;\n mu11 = label.m11 / label.m00 - x_ * y_;\n mu02 = label.m02 / label.m00 - y_ * y_;\n mu20 = label.m20 / label.m00 - x_ * x_;\n tmp = (mu02 - mu20) / (2 * mu11);\n tmp = 0.5 * Math.atan(tmp) + (mu11 >= 0 ? PI_4 : -PI_4 ) + PI;\n label.theta = (tmp * 180 / PI + 90) % 180 - 90;\n if (label.theta < 0) {\n label.theta += 180;\n }\n label.rad = tmp > PI ? tmp - PI : tmp;\n label.vec = vec2.clone([Math.cos(tmp), Math.sin(tmp)]);\n result.push(label);\n }\n }\n\n return result;\n};\n\n/**\n * Displays the {ImageWrapper} in a given canvas\n * @param canvas {Canvas} The canvas element to write to\n * @param scale {Number} Scale which is applied to each pixel-value\n */\nImageWrapper.prototype.show = function(canvas, scale) {\n var ctx,\n frame,\n data,\n current,\n pixel,\n x,\n y;\n\n if (!scale) {\n scale = 1.0;\n }\n ctx = canvas.getContext('2d');\n canvas.width = this.size.x;\n canvas.height = this.size.y;\n frame = ctx.getImageData(0, 0, canvas.width, canvas.height);\n data = frame.data;\n current = 0;\n for (y = 0; y < this.size.y; y++) {\n for (x = 0; x < this.size.x; x++) {\n pixel = y * this.size.x + x;\n current = this.get(x, y) * scale;\n data[pixel * 4 + 0] = current;\n data[pixel * 4 + 1] = current;\n data[pixel * 4 + 2] = current;\n data[pixel * 4 + 3] = 255;\n }\n }\n //frame.data = data;\n ctx.putImageData(frame, 0, 0);\n};\n\n/**\n * Displays the {SubImage} in a given canvas\n * @param canvas {Canvas} The canvas element to write to\n * @param scale {Number} Scale which is applied to each pixel-value\n */\nImageWrapper.prototype.overlay = function(canvas, scale, from) {\n if (!scale || scale < 0 || scale > 360) {\n scale = 360;\n }\n var hsv = [0, 1, 1];\n var rgb = [0, 0, 0];\n var whiteRgb = [255, 255, 255];\n var blackRgb = [0, 0, 0];\n var result = [];\n var ctx = canvas.getContext('2d');\n var frame = ctx.getImageData(from.x, from.y, this.size.x, this.size.y);\n var data = frame.data;\n var length = this.data.length;\n while (length--) {\n hsv[0] = this.data[length] * scale;\n result = hsv[0] <= 0 ? whiteRgb : hsv[0] >= 360 ? blackRgb : CVUtils.hsv2rgb(hsv, rgb);\n data[length * 4 + 0] = result[0];\n data[length * 4 + 1] = result[1];\n data[length * 4 + 2] = result[2];\n data[length * 4 + 3] = 255;\n }\n ctx.putImageData(frame, from.x, from.y);\n};\n\nexport default ImageWrapper;\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/image_wrapper.js\n **/","/**\n * Construct representing a part of another {ImageWrapper}. Shares data\n * between the parent and the child.\n * @param from {ImageRef} The position where to start the {SubImage} from. (top-left corner)\n * @param size {ImageRef} The size of the resulting image\n * @param I {ImageWrapper} The {ImageWrapper} to share from\n * @returns {SubImage} A shared part of the original image\n */\nfunction SubImage(from, size, I) {\n if (!I) {\n I = {\n data : null,\n size : size\n };\n }\n this.data = I.data;\n this.originalSize = I.size;\n this.I = I;\n\n this.from = from;\n this.size = size;\n}\n\n/**\n * Displays the {SubImage} in a given canvas\n * @param canvas {Canvas} The canvas element to write to\n * @param scale {Number} Scale which is applied to each pixel-value\n */\nSubImage.prototype.show = function(canvas, scale) {\n var ctx,\n frame,\n data,\n current,\n y,\n x,\n pixel;\n\n if (!scale) {\n scale = 1.0;\n }\n ctx = canvas.getContext('2d');\n canvas.width = this.size.x;\n canvas.height = this.size.y;\n frame = ctx.getImageData(0, 0, canvas.width, canvas.height);\n data = frame.data;\n current = 0;\n for (y = 0; y < this.size.y; y++) {\n for (x = 0; x < this.size.x; x++) {\n pixel = y * this.size.x + x;\n current = this.get(x, y) * scale;\n data[pixel * 4 + 0] = current;\n data[pixel * 4 + 1] = current;\n data[pixel * 4 + 2] = current;\n data[pixel * 4 + 3] = 255;\n }\n }\n frame.data = data;\n ctx.putImageData(frame, 0, 0);\n};\n\n/**\n * Retrieves a given pixel position from the {SubImage}\n * @param x {Number} The x-position\n * @param y {Number} The y-position\n * @returns {Number} The grayscale value at the pixel-position\n */\nSubImage.prototype.get = function(x, y) {\n return this.data[(this.from.y + y) * this.originalSize.x + this.from.x + x];\n};\n\n/**\n * Updates the underlying data from a given {ImageWrapper}\n * @param image {ImageWrapper} The updated image\n */\nSubImage.prototype.updateData = function(image) {\n this.originalSize = image.size;\n this.data = image.data;\n};\n\n/**\n * Updates the position of the shared area\n * @param from {x,y} The new location\n * @returns {SubImage} returns {this} for possible chaining\n */\nSubImage.prototype.updateFrom = function(from) {\n this.from = from;\n return this;\n};\n\nexport default (SubImage);\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/subImage.js\n **/","import Cluster2 from './cluster';\nimport ArrayHelper from './array_helper';\nimport {vec2, vec3} from 'gl-matrix';\n\nvar CVUtils = {};\n\n/**\n * @param x x-coordinate\n * @param y y-coordinate\n * @return ImageReference {x,y} Coordinate\n */\nCVUtils.imageRef = function(x, y) {\n var that = {\n x : x,\n y : y,\n toVec2 : function() {\n return vec2.clone([this.x, this.y]);\n },\n toVec3 : function() {\n return vec3.clone([this.x, this.y, 1]);\n },\n round : function() {\n this.x = this.x > 0.0 ? Math.floor(this.x + 0.5) : Math.floor(this.x - 0.5);\n this.y = this.y > 0.0 ? Math.floor(this.y + 0.5) : Math.floor(this.y - 0.5);\n return this;\n }\n };\n return that;\n};\n\n/**\n * Computes an integral image of a given grayscale image.\n * @param imageDataContainer {ImageDataContainer} the image to be integrated\n */\nCVUtils.computeIntegralImage2 = function(imageWrapper, integralWrapper) {\n var imageData = imageWrapper.data;\n var width = imageWrapper.size.x;\n var height = imageWrapper.size.y;\n var integralImageData = integralWrapper.data;\n var sum = 0, posA = 0, posB = 0, posC = 0, posD = 0, x, y;\n\n // sum up first column\n posB = width;\n sum = 0;\n for ( y = 1; y < height; y++) {\n sum += imageData[posA];\n integralImageData[posB] += sum;\n posA += width;\n posB += width;\n }\n\n posA = 0;\n posB = 1;\n sum = 0;\n for ( x = 1; x < width; x++) {\n sum += imageData[posA];\n integralImageData[posB] += sum;\n posA++;\n posB++;\n }\n\n for ( y = 1; y < height; y++) {\n posA = y * width + 1;\n posB = (y - 1) * width + 1;\n posC = y * width;\n posD = (y - 1) * width;\n for ( x = 1; x < width; x++) {\n integralImageData[posA] += imageData[posA] + integralImageData[posB] + integralImageData[posC] - integralImageData[posD];\n posA++;\n posB++;\n posC++;\n posD++;\n }\n }\n};\n\nCVUtils.computeIntegralImage = function(imageWrapper, integralWrapper) {\n var imageData = imageWrapper.data;\n var width = imageWrapper.size.x;\n var height = imageWrapper.size.y;\n var integralImageData = integralWrapper.data;\n var sum = 0;\n\n // sum up first row\n for (var i = 0; i < width; i++) {\n sum += imageData[i];\n integralImageData[i] = sum;\n }\n\n for (var v = 1; v < height; v++) {\n sum = 0;\n for (var u = 0; u < width; u++) {\n sum += imageData[v * width + u];\n integralImageData[((v) * width) + u] = sum + integralImageData[(v - 1) * width + u];\n }\n }\n};\n\nCVUtils.thresholdImage = function(imageWrapper, threshold, targetWrapper) {\n if (!targetWrapper) {\n targetWrapper = imageWrapper;\n }\n var imageData = imageWrapper.data, length = imageData.length, targetData = targetWrapper.data;\n\n while (length--) {\n targetData[length] = imageData[length] < threshold ? 1 : 0;\n }\n};\n\nCVUtils.computeHistogram = function(imageWrapper, bitsPerPixel) {\n if (!bitsPerPixel) {\n bitsPerPixel = 8;\n }\n var imageData = imageWrapper.data,\n length = imageData.length,\n bitShift = 8 - bitsPerPixel,\n bucketCnt = 1 << bitsPerPixel,\n hist = new Int32Array(bucketCnt);\n\n while (length--) {\n hist[imageData[length] >> bitShift]++;\n }\n return hist;\n};\n\nCVUtils.sharpenLine = function(line) {\n var i,\n length = line.length,\n left = line[0],\n center = line[1],\n right;\n\n for (i = 1; i < length - 1; i++) {\n right = line[i + 1];\n // -1 4 -1 kernel\n line[i-1] = (((center * 2) - left - right)) & 255;\n left = center;\n center = right;\n }\n return line;\n};\n\nCVUtils.determineOtsuThreshold = function(imageWrapper, bitsPerPixel) {\n if (!bitsPerPixel) {\n bitsPerPixel = 8;\n }\n var hist,\n threshold,\n bitShift = 8 - bitsPerPixel;\n\n function px(init, end) {\n var sum = 0, i;\n for ( i = init; i <= end; i++) {\n sum += hist[i];\n }\n return sum;\n }\n\n function mx(init, end) {\n var i, sum = 0;\n\n for ( i = init; i <= end; i++) {\n sum += i * hist[i];\n }\n\n return sum;\n }\n\n function determineThreshold() {\n var vet = [0], p1, p2, p12, k, m1, m2, m12,\n max = (1 << bitsPerPixel) - 1;\n\n hist = CVUtils.computeHistogram(imageWrapper, bitsPerPixel);\n for ( k = 1; k < max; k++) {\n p1 = px(0, k);\n p2 = px(k + 1, max);\n p12 = p1 * p2;\n if (p12 === 0) {\n p12 = 1;\n }\n m1 = mx(0, k) * p2;\n m2 = mx(k + 1, max) * p1;\n m12 = m1 - m2;\n vet[k] = m12 * m12 / p12;\n }\n return ArrayHelper.maxIndex(vet);\n }\n\n threshold = determineThreshold();\n return threshold << bitShift;\n};\n\nCVUtils.otsuThreshold = function(imageWrapper, targetWrapper) {\n var threshold = CVUtils.determineOtsuThreshold(imageWrapper);\n\n CVUtils.thresholdImage(imageWrapper, threshold, targetWrapper);\n return threshold;\n};\n\n// local thresholding\nCVUtils.computeBinaryImage = function(imageWrapper, integralWrapper, targetWrapper) {\n CVUtils.computeIntegralImage(imageWrapper, integralWrapper);\n\n if (!targetWrapper) {\n targetWrapper = imageWrapper;\n }\n var imageData = imageWrapper.data;\n var targetData = targetWrapper.data;\n var width = imageWrapper.size.x;\n var height = imageWrapper.size.y;\n var integralImageData = integralWrapper.data;\n var sum = 0, v, u, kernel = 3, A, B, C, D, avg, size = (kernel * 2 + 1) * (kernel * 2 + 1);\n\n // clear out top & bottom-border\n for ( v = 0; v <= kernel; v++) {\n for ( u = 0; u < width; u++) {\n targetData[((v) * width) + u] = 0;\n targetData[(((height - 1) - v) * width) + u] = 0;\n }\n }\n\n // clear out left & right border\n for ( v = kernel; v < height - kernel; v++) {\n for ( u = 0; u <= kernel; u++) {\n targetData[((v) * width) + u] = 0;\n targetData[((v) * width) + (width - 1 - u)] = 0;\n }\n }\n\n for ( v = kernel + 1; v < height - kernel - 1; v++) {\n for ( u = kernel + 1; u < width - kernel; u++) {\n A = integralImageData[(v - kernel - 1) * width + (u - kernel - 1)];\n B = integralImageData[(v - kernel - 1) * width + (u + kernel)];\n C = integralImageData[(v + kernel) * width + (u - kernel - 1)];\n D = integralImageData[(v + kernel) * width + (u + kernel)];\n sum = D - C - B + A;\n avg = sum / (size);\n targetData[v * width + u] = imageData[v * width + u] > (avg + 5) ? 0 : 1;\n }\n }\n};\n\nCVUtils.cluster = function(points, threshold, property) {\n var i, k, cluster, point, clusters = [];\n\n if (!property) {\n property = \"rad\";\n }\n\n function addToCluster(point) {\n var found = false;\n for ( k = 0; k < clusters.length; k++) {\n cluster = clusters[k];\n if (cluster.fits(point)) {\n cluster.add(point);\n found = true;\n }\n }\n return found;\n }\n\n // iterate over each cloud\n for ( i = 0; i < points.length; i++) {\n point = Cluster2.createPoint(points[i], i, property);\n if (!addToCluster(point)) {\n clusters.push(Cluster2.create(point, threshold));\n }\n }\n\n return clusters;\n\n};\n\nCVUtils.Tracer = {\n trace : function(points, vec) {\n var iteration, maxIterations = 10, top = [], result = [], centerPos = 0, currentPos = 0;\n\n function trace(idx, forward) {\n var from, to, toIdx, predictedPos, thresholdX = 1, thresholdY = Math.abs(vec[1] / 10), found = false;\n\n function match(pos, predicted) {\n if (pos.x > (predicted.x - thresholdX) && pos.x < (predicted.x + thresholdX) && pos.y > (predicted.y - thresholdY) && pos.y < (predicted.y + thresholdY)) {\n return true;\n } else {\n return false;\n }\n }\n\n // check if the next index is within the vec specifications\n // if not, check as long as the threshold is met\n\n from = points[idx];\n if (forward) {\n predictedPos = {\n x : from.x + vec[0],\n y : from.y + vec[1]\n };\n } else {\n predictedPos = {\n x : from.x - vec[0],\n y : from.y - vec[1]\n };\n }\n\n toIdx = forward ? idx + 1 : idx - 1;\n to = points[toIdx];\n while (to && ( found = match(to, predictedPos)) !== true && (Math.abs(to.y - from.y) < vec[1])) {\n toIdx = forward ? toIdx + 1 : toIdx - 1;\n to = points[toIdx];\n }\n\n return found ? toIdx : null;\n }\n\n for ( iteration = 0; iteration < maxIterations; iteration++) {\n // randomly select point to start with\n centerPos = Math.floor(Math.random() * points.length);\n\n // trace forward\n top = [];\n currentPos = centerPos;\n top.push(points[currentPos]);\n while (( currentPos = trace(currentPos, true)) !== null) {\n top.push(points[currentPos]);\n }\n if (centerPos > 0) {\n currentPos = centerPos;\n while (( currentPos = trace(currentPos, false)) !== null) {\n top.push(points[currentPos]);\n }\n }\n\n if (top.length > result.length) {\n result = top;\n }\n }\n\n return result;\n\n }\n};\n\nCVUtils.DILATE = 1;\nCVUtils.ERODE = 2;\n\nCVUtils.dilate = function(inImageWrapper, outImageWrapper) {\n var v, u, inImageData = inImageWrapper.data, outImageData = outImageWrapper.data, height = inImageWrapper.size.y, width = inImageWrapper.size.x, sum, yStart1, yStart2, xStart1, xStart2;\n\n for ( v = 1; v < height - 1; v++) {\n for ( u = 1; u < width - 1; u++) {\n yStart1 = v - 1;\n yStart2 = v + 1;\n xStart1 = u - 1;\n xStart2 = u + 1;\n sum = inImageData[yStart1 * width + xStart1]/* + inImageData[yStart1*width+u] */ + inImageData[yStart1 * width + xStart2] +\n /* inImageData[v*width+xStart1] + */\n inImageData[v * width + u] + /* inImageData[v*width+xStart2] +*/\n inImageData[yStart2 * width + xStart1]/* + inImageData[yStart2*width+u]*/ + inImageData[yStart2 * width + xStart2];\n outImageData[v * width + u] = sum > 0 ? 1 : 0;\n }\n }\n};\n\nCVUtils.erode = function(inImageWrapper, outImageWrapper) {\n var v, u, inImageData = inImageWrapper.data, outImageData = outImageWrapper.data, height = inImageWrapper.size.y, width = inImageWrapper.size.x, sum, yStart1, yStart2, xStart1, xStart2;\n\n for ( v = 1; v < height - 1; v++) {\n for ( u = 1; u < width - 1; u++) {\n yStart1 = v - 1;\n yStart2 = v + 1;\n xStart1 = u - 1;\n xStart2 = u + 1;\n sum = inImageData[yStart1 * width + xStart1]/* + inImageData[yStart1*width+u] */ + inImageData[yStart1 * width + xStart2] +\n /* inImageData[v*width+xStart1] + */\n inImageData[v * width + u] + /* inImageData[v*width+xStart2] +*/\n inImageData[yStart2 * width + xStart1]/* + inImageData[yStart2*width+u]*/ + inImageData[yStart2 * width + xStart2];\n outImageData[v * width + u] = sum === 5 ? 1 : 0;\n }\n }\n};\n\nCVUtils.subtract = function(aImageWrapper, bImageWrapper, resultImageWrapper) {\n if (!resultImageWrapper) {\n resultImageWrapper = aImageWrapper;\n }\n var length = aImageWrapper.data.length, aImageData = aImageWrapper.data, bImageData = bImageWrapper.data, cImageData = resultImageWrapper.data;\n\n while (length--) {\n cImageData[length] = aImageData[length] - bImageData[length];\n }\n};\n\nCVUtils.bitwiseOr = function(aImageWrapper, bImageWrapper, resultImageWrapper) {\n if (!resultImageWrapper) {\n resultImageWrapper = aImageWrapper;\n }\n var length = aImageWrapper.data.length, aImageData = aImageWrapper.data, bImageData = bImageWrapper.data, cImageData = resultImageWrapper.data;\n\n while (length--) {\n cImageData[length] = aImageData[length] || bImageData[length];\n }\n};\n\nCVUtils.countNonZero = function(imageWrapper) {\n var length = imageWrapper.data.length, data = imageWrapper.data, sum = 0;\n\n while (length--) {\n sum += data[length];\n }\n return sum;\n};\n\nCVUtils.topGeneric = function(list, top, scoreFunc) {\n var i, minIdx = 0, min = 0, queue = [], score, hit, pos;\n\n for ( i = 0; i < top; i++) {\n queue[i] = {\n score : 0,\n item : null\n };\n }\n\n for ( i = 0; i < list.length; i++) {\n score = scoreFunc.apply(this, [list[i]]);\n if (score > min) {\n hit = queue[minIdx];\n hit.score = score;\n hit.item = list[i];\n min = Number.MAX_VALUE;\n for ( pos = 0; pos < top; pos++) {\n if (queue[pos].score < min) {\n min = queue[pos].score;\n minIdx = pos;\n }\n }\n }\n }\n\n return queue;\n};\n\nCVUtils.grayArrayFromImage = function(htmlImage, offsetX, ctx, array) {\n ctx.drawImage(htmlImage, offsetX, 0, htmlImage.width, htmlImage.height);\n var ctxData = ctx.getImageData(offsetX, 0, htmlImage.width, htmlImage.height).data;\n CVUtils.computeGray(ctxData, array);\n};\n\nCVUtils.grayArrayFromContext = function(ctx, size, offset, array) {\n var ctxData = ctx.getImageData(offset.x, offset.y, size.x, size.y).data;\n CVUtils.computeGray(ctxData, array);\n};\n\nCVUtils.grayAndHalfSampleFromCanvasData = function(canvasData, size, outArray) {\n var topRowIdx = 0;\n var bottomRowIdx = size.x;\n var endIdx = Math.floor(canvasData.length / 4);\n var outWidth = size.x / 2;\n var outImgIdx = 0;\n var inWidth = size.x;\n var i;\n\n while (bottomRowIdx < endIdx) {\n for ( i = 0; i < outWidth; i++) {\n outArray[outImgIdx] = Math.floor(((0.299 * canvasData[topRowIdx * 4 + 0] + 0.587 * canvasData[topRowIdx * 4 + 1] + 0.114 * canvasData[topRowIdx * 4 + 2]) + (0.299 * canvasData[(topRowIdx + 1) * 4 + 0] + 0.587 * canvasData[(topRowIdx + 1) * 4 + 1] + 0.114 * canvasData[(topRowIdx + 1) * 4 + 2]) + (0.299 * canvasData[(bottomRowIdx) * 4 + 0] + 0.587 * canvasData[(bottomRowIdx) * 4 + 1] + 0.114 * canvasData[(bottomRowIdx) * 4 + 2]) + (0.299 * canvasData[(bottomRowIdx + 1) * 4 + 0] + 0.587 * canvasData[(bottomRowIdx + 1) * 4 + 1] + 0.114 * canvasData[(bottomRowIdx + 1) * 4 + 2])) / 4);\n outImgIdx++;\n topRowIdx = topRowIdx + 2;\n bottomRowIdx = bottomRowIdx + 2;\n }\n topRowIdx = topRowIdx + inWidth;\n bottomRowIdx = bottomRowIdx + inWidth;\n }\n\n};\n\nCVUtils.computeGray = function(imageData, outArray, config) {\n var l = (imageData.length / 4) | 0,\n i,\n singleChannel = config && config.singleChannel === true;\n\n if (singleChannel) {\n for (i = 0; i < l; i++) {\n outArray[i] = imageData[i * 4 + 0];\n }\n } else {\n for (i = 0; i < l; i++) {\n outArray[i] = Math.floor(0.299 * imageData[i * 4 + 0] + 0.587 * imageData[i * 4 + 1] + 0.114 * imageData[i * 4 + 2]);\n }\n }\n};\n\nCVUtils.loadImageArray = function(src, callback, canvas) {\n if (!canvas)\n canvas = document.createElement('canvas');\n var img = new Image();\n img.callback = callback;\n img.onload = function() {\n canvas.width = this.width;\n canvas.height = this.height;\n var ctx = canvas.getContext('2d');\n ctx.drawImage(this, 0, 0);\n var array = new Uint8Array(this.width * this.height);\n ctx.drawImage(this, 0, 0);\n var data = ctx.getImageData(0, 0, this.width, this.height).data;\n CVUtils.computeGray(data, array);\n this.callback(array, {\n x : this.width,\n y : this.height\n }, this);\n };\n img.src = src;\n};\n\n/**\n * @param inImg {ImageWrapper} input image to be sampled\n * @param outImg {ImageWrapper} to be stored in\n */\nCVUtils.halfSample = function(inImgWrapper, outImgWrapper) {\n var inImg = inImgWrapper.data;\n var inWidth = inImgWrapper.size.x;\n var outImg = outImgWrapper.data;\n var topRowIdx = 0;\n var bottomRowIdx = inWidth;\n var endIdx = inImg.length;\n var outWidth = inWidth / 2;\n var outImgIdx = 0;\n while (bottomRowIdx < endIdx) {\n for (var i = 0; i < outWidth; i++) {\n outImg[outImgIdx] = Math.floor((inImg[topRowIdx] + inImg[topRowIdx + 1] + inImg[bottomRowIdx] + inImg[bottomRowIdx + 1]) / 4);\n outImgIdx++;\n topRowIdx = topRowIdx + 2;\n bottomRowIdx = bottomRowIdx + 2;\n }\n topRowIdx = topRowIdx + inWidth;\n bottomRowIdx = bottomRowIdx + inWidth;\n }\n};\n\nCVUtils.hsv2rgb = function(hsv, rgb) {\n var h = hsv[0], s = hsv[1], v = hsv[2], c = v * s, x = c * (1 - Math.abs((h / 60) % 2 - 1)), m = v - c, r = 0, g = 0, b = 0;\n rgb = rgb || [0, 0, 0];\n\n if (h < 60) {\n r = c;\n g = x;\n } else if (h < 120) {\n r = x;\n g = c;\n } else if (h < 180) {\n g = c;\n b = x;\n } else if (h < 240) {\n g = x;\n b = c;\n } else if (h < 300) {\n r = x;\n b = c;\n } else if (h < 360) {\n r = c;\n b = x;\n }\n rgb[0] = ((r + m) * 255) | 0;\n rgb[1] = ((g + m) * 255) | 0;\n rgb[2] = ((b + m) * 255) | 0;\n return rgb;\n};\n\nCVUtils._computeDivisors = function(n) {\n var largeDivisors = [],\n divisors = [],\n i;\n\n for (i = 1; i < Math.sqrt(n) + 1; i++) {\n if (n % i === 0) {\n divisors.push(i);\n if (i !== n/i) {\n largeDivisors.unshift(Math.floor(n/i));\n }\n }\n }\n return divisors.concat(largeDivisors);\n};\n\nCVUtils._computeIntersection = function(arr1, arr2) {\n var i = 0,\n j = 0,\n result = [];\n\n while (i < arr1.length && j < arr2.length) {\n if (arr1[i] === arr2[j]) {\n result.push(arr1[i]);\n i++;\n j++;\n } else if (arr1[i] > arr2[j]) {\n j++;\n } else {\n i++;\n }\n }\n return result;\n};\n\nCVUtils.calculatePatchSize = function(patchSize, imgSize) {\n var divisorsX = this._computeDivisors(imgSize.x),\n divisorsY = this._computeDivisors(imgSize.y),\n wideSide = Math.max(imgSize.x, imgSize.y),\n common = this._computeIntersection(divisorsX, divisorsY),\n nrOfPatchesList = [8, 10, 15, 20, 32, 60, 80],\n nrOfPatchesMap = {\n \"x-small\": 5,\n \"small\": 4,\n \"medium\": 3,\n \"large\": 2,\n \"x-large\": 1\n },\n nrOfPatchesIdx = nrOfPatchesMap[patchSize] || nrOfPatchesMap.medium,\n nrOfPatches = nrOfPatchesList[nrOfPatchesIdx],\n desiredPatchSize = Math.floor(wideSide/nrOfPatches),\n optimalPatchSize;\n\n function findPatchSizeForDivisors(divisors) {\n var i = 0,\n found = divisors[Math.floor(divisors.length/2)];\n\n while(i < (divisors.length - 1) && divisors[i] < desiredPatchSize) {\n i++;\n }\n if (i > 0) {\n if (Math.abs(divisors[i] - desiredPatchSize) > Math.abs(divisors[i-1] - desiredPatchSize)) {\n found = divisors[i-1];\n } else {\n found = divisors[i];\n }\n }\n if (desiredPatchSize / found < nrOfPatchesList[nrOfPatchesIdx+1] / nrOfPatchesList[nrOfPatchesIdx] &&\n desiredPatchSize / found > nrOfPatchesList[nrOfPatchesIdx-1]/nrOfPatchesList[nrOfPatchesIdx] ) {\n return {x: found, y: found};\n }\n return null;\n }\n\n optimalPatchSize = findPatchSizeForDivisors(common);\n if (!optimalPatchSize) {\n optimalPatchSize = findPatchSizeForDivisors(this._computeDivisors(wideSide));\n if (!optimalPatchSize) {\n optimalPatchSize = findPatchSizeForDivisors((this._computeDivisors(desiredPatchSize * nrOfPatches)));\n }\n }\n return optimalPatchSize;\n};\n\nCVUtils._parseCSSDimensionValues = function(value) {\n var dimension = {\n value: parseFloat(value),\n unit: value.indexOf(\"%\") === value.length-1 ? \"%\" : \"%\"\n };\n\n return dimension;\n};\n\nCVUtils._dimensionsConverters = {\n top: function(dimension, context) {\n if (dimension.unit === \"%\") {\n return Math.floor(context.height * (dimension.value / 100));\n }\n },\n right: function(dimension, context) {\n if (dimension.unit === \"%\") {\n return Math.floor(context.width - (context.width * (dimension.value / 100)));\n }\n },\n bottom: function(dimension, context) {\n if (dimension.unit === \"%\") {\n return Math.floor(context.height - (context.height * (dimension.value / 100)));\n }\n },\n left: function(dimension, context) {\n if (dimension.unit === \"%\") {\n return Math.floor(context.width * (dimension.value / 100));\n }\n }\n};\n\nCVUtils.computeImageArea = function(inputWidth, inputHeight, area) {\n var context = {width: inputWidth, height: inputHeight};\n\n var parsedArea = Object.keys(area).reduce(function(result, key) {\n var value = area[key],\n parsed = CVUtils._parseCSSDimensionValues(value),\n calculated = CVUtils._dimensionsConverters[key](parsed, context);\n\n result[key] = calculated;\n return result;\n }, {});\n\n return {\n sx: parsedArea.left,\n sy: parsedArea.top,\n sw: parsedArea.right - parsedArea.left,\n sh: parsedArea.bottom - parsedArea.top\n };\n};\n\nexport default CVUtils;\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/cv_utils.js\n **/","import {vec2} from 'gl-matrix';\n /**\n * Creates a cluster for grouping similar orientations of datapoints\n */\nexport default {\n create : function(point, threshold) {\n var points = [], center = {\n rad : 0,\n vec : vec2.clone([0, 0])\n }, pointMap = {};\n\n function init() {\n add(point);\n updateCenter();\n }\n\n function add(point) {\n pointMap[point.id] = point;\n points.push(point);\n }\n\n function updateCenter() {\n var i, sum = 0;\n for ( i = 0; i < points.length; i++) {\n sum += points[i].rad;\n }\n center.rad = sum / points.length;\n center.vec = vec2.clone([Math.cos(center.rad), Math.sin(center.rad)]);\n }\n\n init();\n\n return {\n add : function(point) {\n if (!pointMap[point.id]) {\n add(point);\n updateCenter();\n }\n },\n fits : function(point) {\n // check cosine similarity to center-angle\n var similarity = Math.abs(vec2.dot(point.point.vec, center.vec));\n if (similarity > threshold) {\n return true;\n }\n return false;\n },\n getPoints : function() {\n return points;\n },\n getCenter : function() {\n return center;\n }\n };\n },\n createPoint : function(point, id, property) {\n return {\n rad : point[property],\n point : point,\n id : id\n };\n }\n};\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/cluster.js\n **/","/**\n * @fileoverview gl-matrix - High performance matrix and vector operations\n * @author Brandon Jones\n * @author Colin MacKenzie IV\n * @version 2.3.0\n */\n\n/* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV.\n\nPermission is hereby granted, free of charge, to any person obtaining a copy\nof this software and associated documentation files (the \"Software\"), to deal\nin the Software without restriction, including without limitation the rights\nto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\ncopies of the Software, and to permit persons to whom the Software is\nfurnished to do so, subject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in\nall copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\nFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\nAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\nLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\nOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\nTHE SOFTWARE. */\n// END HEADER\n\nexports.glMatrix = require(\"./gl-matrix/common.js\");\nexports.mat2 = require(\"./gl-matrix/mat2.js\");\nexports.mat2d = require(\"./gl-matrix/mat2d.js\");\nexports.mat3 = require(\"./gl-matrix/mat3.js\");\nexports.mat4 = require(\"./gl-matrix/mat4.js\");\nexports.quat = require(\"./gl-matrix/quat.js\");\nexports.vec2 = require(\"./gl-matrix/vec2.js\");\nexports.vec3 = require(\"./gl-matrix/vec3.js\");\nexports.vec4 = require(\"./gl-matrix/vec4.js\");\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/gl-matrix/src/gl-matrix.js\n ** module id = 9\n ** module chunks = 0\n **/","/* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV.\n\nPermission is hereby granted, free of charge, to any person obtaining a copy\nof this software and associated documentation files (the \"Software\"), to deal\nin the Software without restriction, including without limitation the rights\nto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\ncopies of the Software, and to permit persons to whom the Software is\nfurnished to do so, subject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in\nall copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\nFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\nAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\nLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\nOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\nTHE SOFTWARE. */\n\n/**\n * @class Common utilities\n * @name glMatrix\n */\nvar glMatrix = {};\n\n// Constants\nglMatrix.EPSILON = 0.000001;\nglMatrix.ARRAY_TYPE = (typeof Float32Array !== 'undefined') ? Float32Array : Array;\nglMatrix.RANDOM = Math.random;\n\n/**\n * Sets the type of array used when creating new vectors and matrices\n *\n * @param {Type} type Array type, such as Float32Array or Array\n */\nglMatrix.setMatrixArrayType = function(type) {\n GLMAT_ARRAY_TYPE = type;\n}\n\nvar degree = Math.PI / 180;\n\n/**\n* Convert Degree To Radian\n*\n* @param {Number} Angle in Degrees\n*/\nglMatrix.toRadian = function(a){\n return a * degree;\n}\n\nmodule.exports = glMatrix;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/gl-matrix/src/gl-matrix/common.js\n ** module id = 10\n ** module chunks = 0\n **/","/* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV.\n\nPermission is hereby granted, free of charge, to any person obtaining a copy\nof this software and associated documentation files (the \"Software\"), to deal\nin the Software without restriction, including without limitation the rights\nto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\ncopies of the Software, and to permit persons to whom the Software is\nfurnished to do so, subject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in\nall copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\nFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\nAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\nLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\nOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\nTHE SOFTWARE. */\n\nvar glMatrix = require(\"./common.js\");\n\n/**\n * @class 2x2 Matrix\n * @name mat2\n */\nvar mat2 = {};\n\n/**\n * Creates a new identity mat2\n *\n * @returns {mat2} a new 2x2 matrix\n */\nmat2.create = function() {\n var out = new glMatrix.ARRAY_TYPE(4);\n out[0] = 1;\n out[1] = 0;\n out[2] = 0;\n out[3] = 1;\n return out;\n};\n\n/**\n * Creates a new mat2 initialized with values from an existing matrix\n *\n * @param {mat2} a matrix to clone\n * @returns {mat2} a new 2x2 matrix\n */\nmat2.clone = function(a) {\n var out = new glMatrix.ARRAY_TYPE(4);\n out[0] = a[0];\n out[1] = a[1];\n out[2] = a[2];\n out[3] = a[3];\n return out;\n};\n\n/**\n * Copy the values from one mat2 to another\n *\n * @param {mat2} out the receiving matrix\n * @param {mat2} a the source matrix\n * @returns {mat2} out\n */\nmat2.copy = function(out, a) {\n out[0] = a[0];\n out[1] = a[1];\n out[2] = a[2];\n out[3] = a[3];\n return out;\n};\n\n/**\n * Set a mat2 to the identity matrix\n *\n * @param {mat2} out the receiving matrix\n * @returns {mat2} out\n */\nmat2.identity = function(out) {\n out[0] = 1;\n out[1] = 0;\n out[2] = 0;\n out[3] = 1;\n return out;\n};\n\n/**\n * Transpose the values of a mat2\n *\n * @param {mat2} out the receiving matrix\n * @param {mat2} a the source matrix\n * @returns {mat2} out\n */\nmat2.transpose = function(out, a) {\n // If we are transposing ourselves we can skip a few steps but have to cache some values\n if (out === a) {\n var a1 = a[1];\n out[1] = a[2];\n out[2] = a1;\n } else {\n out[0] = a[0];\n out[1] = a[2];\n out[2] = a[1];\n out[3] = a[3];\n }\n \n return out;\n};\n\n/**\n * Inverts a mat2\n *\n * @param {mat2} out the receiving matrix\n * @param {mat2} a the source matrix\n * @returns {mat2} out\n */\nmat2.invert = function(out, a) {\n var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3],\n\n // Calculate the determinant\n det = a0 * a3 - a2 * a1;\n\n if (!det) {\n return null;\n }\n det = 1.0 / det;\n \n out[0] = a3 * det;\n out[1] = -a1 * det;\n out[2] = -a2 * det;\n out[3] = a0 * det;\n\n return out;\n};\n\n/**\n * Calculates the adjugate of a mat2\n *\n * @param {mat2} out the receiving matrix\n * @param {mat2} a the source matrix\n * @returns {mat2} out\n */\nmat2.adjoint = function(out, a) {\n // Caching this value is nessecary if out == a\n var a0 = a[0];\n out[0] = a[3];\n out[1] = -a[1];\n out[2] = -a[2];\n out[3] = a0;\n\n return out;\n};\n\n/**\n * Calculates the determinant of a mat2\n *\n * @param {mat2} a the source matrix\n * @returns {Number} determinant of a\n */\nmat2.determinant = function (a) {\n return a[0] * a[3] - a[2] * a[1];\n};\n\n/**\n * Multiplies two mat2's\n *\n * @param {mat2} out the receiving matrix\n * @param {mat2} a the first operand\n * @param {mat2} b the second operand\n * @returns {mat2} out\n */\nmat2.multiply = function (out, a, b) {\n var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3];\n var b0 = b[0], b1 = b[1], b2 = b[2], b3 = b[3];\n out[0] = a0 * b0 + a2 * b1;\n out[1] = a1 * b0 + a3 * b1;\n out[2] = a0 * b2 + a2 * b3;\n out[3] = a1 * b2 + a3 * b3;\n return out;\n};\n\n/**\n * Alias for {@link mat2.multiply}\n * @function\n */\nmat2.mul = mat2.multiply;\n\n/**\n * Rotates a mat2 by the given angle\n *\n * @param {mat2} out the receiving matrix\n * @param {mat2} a the matrix to rotate\n * @param {Number} rad the angle to rotate the matrix by\n * @returns {mat2} out\n */\nmat2.rotate = function (out, a, rad) {\n var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3],\n s = Math.sin(rad),\n c = Math.cos(rad);\n out[0] = a0 * c + a2 * s;\n out[1] = a1 * c + a3 * s;\n out[2] = a0 * -s + a2 * c;\n out[3] = a1 * -s + a3 * c;\n return out;\n};\n\n/**\n * Scales the mat2 by the dimensions in the given vec2\n *\n * @param {mat2} out the receiving matrix\n * @param {mat2} a the matrix to rotate\n * @param {vec2} v the vec2 to scale the matrix by\n * @returns {mat2} out\n **/\nmat2.scale = function(out, a, v) {\n var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3],\n v0 = v[0], v1 = v[1];\n out[0] = a0 * v0;\n out[1] = a1 * v0;\n out[2] = a2 * v1;\n out[3] = a3 * v1;\n return out;\n};\n\n/**\n * Creates a matrix from a given angle\n * This is equivalent to (but much faster than):\n *\n * mat2.identity(dest);\n * mat2.rotate(dest, dest, rad);\n *\n * @param {mat2} out mat2 receiving operation result\n * @param {Number} rad the angle to rotate the matrix by\n * @returns {mat2} out\n */\nmat2.fromRotation = function(out, rad) {\n var s = Math.sin(rad),\n c = Math.cos(rad);\n out[0] = c;\n out[1] = s;\n out[2] = -s;\n out[3] = c;\n return out;\n}\n\n/**\n * Creates a matrix from a vector scaling\n * This is equivalent to (but much faster than):\n *\n * mat2.identity(dest);\n * mat2.scale(dest, dest, vec);\n *\n * @param {mat2} out mat2 receiving operation result\n * @param {vec2} v Scaling vector\n * @returns {mat2} out\n */\nmat2.fromScaling = function(out, v) {\n out[0] = v[0];\n out[1] = 0;\n out[2] = 0;\n out[3] = v[1];\n return out;\n}\n\n/**\n * Returns a string representation of a mat2\n *\n * @param {mat2} mat matrix to represent as a string\n * @returns {String} string representation of the matrix\n */\nmat2.str = function (a) {\n return 'mat2(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' + a[3] + ')';\n};\n\n/**\n * Returns Frobenius norm of a mat2\n *\n * @param {mat2} a the matrix to calculate Frobenius norm of\n * @returns {Number} Frobenius norm\n */\nmat2.frob = function (a) {\n return(Math.sqrt(Math.pow(a[0], 2) + Math.pow(a[1], 2) + Math.pow(a[2], 2) + Math.pow(a[3], 2)))\n};\n\n/**\n * Returns L, D and U matrices (Lower triangular, Diagonal and Upper triangular) by factorizing the input matrix\n * @param {mat2} L the lower triangular matrix \n * @param {mat2} D the diagonal matrix \n * @param {mat2} U the upper triangular matrix \n * @param {mat2} a the input matrix to factorize\n */\n\nmat2.LDU = function (L, D, U, a) { \n L[2] = a[2]/a[0]; \n U[0] = a[0]; \n U[1] = a[1]; \n U[3] = a[3] - L[2] * U[1]; \n return [L, D, U]; \n}; \n\n\nmodule.exports = mat2;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/gl-matrix/src/gl-matrix/mat2.js\n ** module id = 11\n ** module chunks = 0\n **/","/* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV.\n\nPermission is hereby granted, free of charge, to any person obtaining a copy\nof this software and associated documentation files (the \"Software\"), to deal\nin the Software without restriction, including without limitation the rights\nto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\ncopies of the Software, and to permit persons to whom the Software is\nfurnished to do so, subject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in\nall copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\nFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\nAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\nLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\nOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\nTHE SOFTWARE. */\n\nvar glMatrix = require(\"./common.js\");\n\n/**\n * @class 2x3 Matrix\n * @name mat2d\n * \n * @description \n * A mat2d contains six elements defined as:\n * 
\n * [a, c, tx,\n *  b, d, ty]\n *
\n * This is a short form for the 3x3 matrix:\n * 
\n * [a, c, tx,\n *  b, d, ty,\n *  0, 0, 1]\n *
\n * The last row is ignored so the array is shorter and operations are faster.\n */\nvar mat2d = {};\n\n/**\n * Creates a new identity mat2d\n *\n * @returns {mat2d} a new 2x3 matrix\n */\nmat2d.create = function() {\n var out = new glMatrix.ARRAY_TYPE(6);\n out[0] = 1;\n out[1] = 0;\n out[2] = 0;\n out[3] = 1;\n out[4] = 0;\n out[5] = 0;\n return out;\n};\n\n/**\n * Creates a new mat2d initialized with values from an existing matrix\n *\n * @param {mat2d} a matrix to clone\n * @returns {mat2d} a new 2x3 matrix\n */\nmat2d.clone = function(a) {\n var out = new glMatrix.ARRAY_TYPE(6);\n out[0] = a[0];\n out[1] = a[1];\n out[2] = a[2];\n out[3] = a[3];\n out[4] = a[4];\n out[5] = a[5];\n return out;\n};\n\n/**\n * Copy the values from one mat2d to another\n *\n * @param {mat2d} out the receiving matrix\n * @param {mat2d} a the source matrix\n * @returns {mat2d} out\n */\nmat2d.copy = function(out, a) {\n out[0] = a[0];\n out[1] = a[1];\n out[2] = a[2];\n out[3] = a[3];\n out[4] = a[4];\n out[5] = a[5];\n return out;\n};\n\n/**\n * Set a mat2d to the identity matrix\n *\n * @param {mat2d} out the receiving matrix\n * @returns {mat2d} out\n */\nmat2d.identity = function(out) {\n out[0] = 1;\n out[1] = 0;\n out[2] = 0;\n out[3] = 1;\n out[4] = 0;\n out[5] = 0;\n return out;\n};\n\n/**\n * Inverts a mat2d\n *\n * @param {mat2d} out the receiving matrix\n * @param {mat2d} a the source matrix\n * @returns {mat2d} out\n */\nmat2d.invert = function(out, a) {\n var aa = a[0], ab = a[1], ac = a[2], ad = a[3],\n atx = a[4], aty = a[5];\n\n var det = aa * ad - ab * ac;\n if(!det){\n return null;\n }\n det = 1.0 / det;\n\n out[0] = ad * det;\n out[1] = -ab * det;\n out[2] = -ac * det;\n out[3] = aa * det;\n out[4] = (ac * aty - ad * atx) * det;\n out[5] = (ab * atx - aa * aty) * det;\n return out;\n};\n\n/**\n * Calculates the determinant of a mat2d\n *\n * @param {mat2d} a the source matrix\n * @returns {Number} determinant of a\n */\nmat2d.determinant = function (a) {\n return a[0] * a[3] - a[1] * a[2];\n};\n\n/**\n * Multiplies two mat2d's\n *\n * @param {mat2d} out the receiving matrix\n * @param {mat2d} a the first operand\n * @param {mat2d} b the second operand\n * @returns {mat2d} out\n */\nmat2d.multiply = function (out, a, b) {\n var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3], a4 = a[4], a5 = a[5],\n b0 = b[0], b1 = b[1], b2 = b[2], b3 = b[3], b4 = b[4], b5 = b[5];\n out[0] = a0 * b0 + a2 * b1;\n out[1] = a1 * b0 + a3 * b1;\n out[2] = a0 * b2 + a2 * b3;\n out[3] = a1 * b2 + a3 * b3;\n out[4] = a0 * b4 + a2 * b5 + a4;\n out[5] = a1 * b4 + a3 * b5 + a5;\n return out;\n};\n\n/**\n * Alias for {@link mat2d.multiply}\n * @function\n */\nmat2d.mul = mat2d.multiply;\n\n/**\n * Rotates a mat2d by the given angle\n *\n * @param {mat2d} out the receiving matrix\n * @param {mat2d} a the matrix to rotate\n * @param {Number} rad the angle to rotate the matrix by\n * @returns {mat2d} out\n */\nmat2d.rotate = function (out, a, rad) {\n var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3], a4 = a[4], a5 = a[5],\n s = Math.sin(rad),\n c = Math.cos(rad);\n out[0] = a0 * c + a2 * s;\n out[1] = a1 * c + a3 * s;\n out[2] = a0 * -s + a2 * c;\n out[3] = a1 * -s + a3 * c;\n out[4] = a4;\n out[5] = a5;\n return out;\n};\n\n/**\n * Scales the mat2d by the dimensions in the given vec2\n *\n * @param {mat2d} out the receiving matrix\n * @param {mat2d} a the matrix to translate\n * @param {vec2} v the vec2 to scale the matrix by\n * @returns {mat2d} out\n **/\nmat2d.scale = function(out, a, v) {\n var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3], a4 = a[4], a5 = a[5],\n v0 = v[0], v1 = v[1];\n out[0] = a0 * v0;\n out[1] = a1 * v0;\n out[2] = a2 * v1;\n out[3] = a3 * v1;\n out[4] = a4;\n out[5] = a5;\n return out;\n};\n\n/**\n * Translates the mat2d by the dimensions in the given vec2\n *\n * @param {mat2d} out the receiving matrix\n * @param {mat2d} a the matrix to translate\n * @param {vec2} v the vec2 to translate the matrix by\n * @returns {mat2d} out\n **/\nmat2d.translate = function(out, a, v) {\n var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3], a4 = a[4], a5 = a[5],\n v0 = v[0], v1 = v[1];\n out[0] = a0;\n out[1] = a1;\n out[2] = a2;\n out[3] = a3;\n out[4] = a0 * v0 + a2 * v1 + a4;\n out[5] = a1 * v0 + a3 * v1 + a5;\n return out;\n};\n\n/**\n * Creates a matrix from a given angle\n * This is equivalent to (but much faster than):\n *\n * mat2d.identity(dest);\n * mat2d.rotate(dest, dest, rad);\n *\n * @param {mat2d} out mat2d receiving operation result\n * @param {Number} rad the angle to rotate the matrix by\n * @returns {mat2d} out\n */\nmat2d.fromRotation = function(out, rad) {\n var s = Math.sin(rad), c = Math.cos(rad);\n out[0] = c;\n out[1] = s;\n out[2] = -s;\n out[3] = c;\n out[4] = 0;\n out[5] = 0;\n return out;\n}\n\n/**\n * Creates a matrix from a vector scaling\n * This is equivalent to (but much faster than):\n *\n * mat2d.identity(dest);\n * mat2d.scale(dest, dest, vec);\n *\n * @param {mat2d} out mat2d receiving operation result\n * @param {vec2} v Scaling vector\n * @returns {mat2d} out\n */\nmat2d.fromScaling = function(out, v) {\n out[0] = v[0];\n out[1] = 0;\n out[2] = 0;\n out[3] = v[1];\n out[4] = 0;\n out[5] = 0;\n return out;\n}\n\n/**\n * Creates a matrix from a vector translation\n * This is equivalent to (but much faster than):\n *\n * mat2d.identity(dest);\n * mat2d.translate(dest, dest, vec);\n *\n * @param {mat2d} out mat2d receiving operation result\n * @param {vec2} v Translation vector\n * @returns {mat2d} out\n */\nmat2d.fromTranslation = function(out, v) {\n out[0] = 1;\n out[1] = 0;\n out[2] = 0;\n out[3] = 1;\n out[4] = v[0];\n out[5] = v[1];\n return out;\n}\n\n/**\n * Returns a string representation of a mat2d\n *\n * @param {mat2d} a matrix to represent as a string\n * @returns {String} string representation of the matrix\n */\nmat2d.str = function (a) {\n return 'mat2d(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' + \n a[3] + ', ' + a[4] + ', ' + a[5] + ')';\n};\n\n/**\n * Returns Frobenius norm of a mat2d\n *\n * @param {mat2d} a the matrix to calculate Frobenius norm of\n * @returns {Number} Frobenius norm\n */\nmat2d.frob = function (a) { \n return(Math.sqrt(Math.pow(a[0], 2) + Math.pow(a[1], 2) + Math.pow(a[2], 2) + Math.pow(a[3], 2) + Math.pow(a[4], 2) + Math.pow(a[5], 2) + 1))\n}; \n\nmodule.exports = mat2d;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/gl-matrix/src/gl-matrix/mat2d.js\n ** module id = 12\n ** module chunks = 0\n **/","/* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV.\n\nPermission is hereby granted, free of charge, to any person obtaining a copy\nof this software and associated documentation files (the \"Software\"), to deal\nin the Software without restriction, including without limitation the rights\nto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\ncopies of the Software, and to permit persons to whom the Software is\nfurnished to do so, subject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in\nall copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\nFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\nAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\nLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\nOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\nTHE SOFTWARE. */\n\nvar glMatrix = require(\"./common.js\");\n\n/**\n * @class 3x3 Matrix\n * @name mat3\n */\nvar mat3 = {};\n\n/**\n * Creates a new identity mat3\n *\n * @returns {mat3} a new 3x3 matrix\n */\nmat3.create = function() {\n var out = new glMatrix.ARRAY_TYPE(9);\n out[0] = 1;\n out[1] = 0;\n out[2] = 0;\n out[3] = 0;\n out[4] = 1;\n out[5] = 0;\n out[6] = 0;\n out[7] = 0;\n out[8] = 1;\n return out;\n};\n\n/**\n * Copies the upper-left 3x3 values into the given mat3.\n *\n * @param {mat3} out the receiving 3x3 matrix\n * @param {mat4} a the source 4x4 matrix\n * @returns {mat3} out\n */\nmat3.fromMat4 = function(out, a) {\n out[0] = a[0];\n out[1] = a[1];\n out[2] = a[2];\n out[3] = a[4];\n out[4] = a[5];\n out[5] = a[6];\n out[6] = a[8];\n out[7] = a[9];\n out[8] = a[10];\n return out;\n};\n\n/**\n * Creates a new mat3 initialized with values from an existing matrix\n *\n * @param {mat3} a matrix to clone\n * @returns {mat3} a new 3x3 matrix\n */\nmat3.clone = function(a) {\n var out = new glMatrix.ARRAY_TYPE(9);\n out[0] = a[0];\n out[1] = a[1];\n out[2] = a[2];\n out[3] = a[3];\n out[4] = a[4];\n out[5] = a[5];\n out[6] = a[6];\n out[7] = a[7];\n out[8] = a[8];\n return out;\n};\n\n/**\n * Copy the values from one mat3 to another\n *\n * @param {mat3} out the receiving matrix\n * @param {mat3} a the source matrix\n * @returns {mat3} out\n */\nmat3.copy = function(out, a) {\n out[0] = a[0];\n out[1] = a[1];\n out[2] = a[2];\n out[3] = a[3];\n out[4] = a[4];\n out[5] = a[5];\n out[6] = a[6];\n out[7] = a[7];\n out[8] = a[8];\n return out;\n};\n\n/**\n * Set a mat3 to the identity matrix\n *\n * @param {mat3} out the receiving matrix\n * @returns {mat3} out\n */\nmat3.identity = function(out) {\n out[0] = 1;\n out[1] = 0;\n out[2] = 0;\n out[3] = 0;\n out[4] = 1;\n out[5] = 0;\n out[6] = 0;\n out[7] = 0;\n out[8] = 1;\n return out;\n};\n\n/**\n * Transpose the values of a mat3\n *\n * @param {mat3} out the receiving matrix\n * @param {mat3} a the source matrix\n * @returns {mat3} out\n */\nmat3.transpose = function(out, a) {\n // If we are transposing ourselves we can skip a few steps but have to cache some values\n if (out === a) {\n var a01 = a[1], a02 = a[2], a12 = a[5];\n out[1] = a[3];\n out[2] = a[6];\n out[3] = a01;\n out[5] = a[7];\n out[6] = a02;\n out[7] = a12;\n } else {\n out[0] = a[0];\n out[1] = a[3];\n out[2] = a[6];\n out[3] = a[1];\n out[4] = a[4];\n out[5] = a[7];\n out[6] = a[2];\n out[7] = a[5];\n out[8] = a[8];\n }\n \n return out;\n};\n\n/**\n * Inverts a mat3\n *\n * @param {mat3} out the receiving matrix\n * @param {mat3} a the source matrix\n * @returns {mat3} out\n */\nmat3.invert = function(out, a) {\n var a00 = a[0], a01 = a[1], a02 = a[2],\n a10 = a[3], a11 = a[4], a12 = a[5],\n a20 = a[6], a21 = a[7], a22 = a[8],\n\n b01 = a22 * a11 - a12 * a21,\n b11 = -a22 * a10 + a12 * a20,\n b21 = a21 * a10 - a11 * a20,\n\n // Calculate the determinant\n det = a00 * b01 + a01 * b11 + a02 * b21;\n\n if (!det) { \n return null; \n }\n det = 1.0 / det;\n\n out[0] = b01 * det;\n out[1] = (-a22 * a01 + a02 * a21) * det;\n out[2] = (a12 * a01 - a02 * a11) * det;\n out[3] = b11 * det;\n out[4] = (a22 * a00 - a02 * a20) * det;\n out[5] = (-a12 * a00 + a02 * a10) * det;\n out[6] = b21 * det;\n out[7] = (-a21 * a00 + a01 * a20) * det;\n out[8] = (a11 * a00 - a01 * a10) * det;\n return out;\n};\n\n/**\n * Calculates the adjugate of a mat3\n *\n * @param {mat3} out the receiving matrix\n * @param {mat3} a the source matrix\n * @returns {mat3} out\n */\nmat3.adjoint = function(out, a) {\n var a00 = a[0], a01 = a[1], a02 = a[2],\n a10 = a[3], a11 = a[4], a12 = a[5],\n a20 = a[6], a21 = a[7], a22 = a[8];\n\n out[0] = (a11 * a22 - a12 * a21);\n out[1] = (a02 * a21 - a01 * a22);\n out[2] = (a01 * a12 - a02 * a11);\n out[3] = (a12 * a20 - a10 * a22);\n out[4] = (a00 * a22 - a02 * a20);\n out[5] = (a02 * a10 - a00 * a12);\n out[6] = (a10 * a21 - a11 * a20);\n out[7] = (a01 * a20 - a00 * a21);\n out[8] = (a00 * a11 - a01 * a10);\n return out;\n};\n\n/**\n * Calculates the determinant of a mat3\n *\n * @param {mat3} a the source matrix\n * @returns {Number} determinant of a\n */\nmat3.determinant = function (a) {\n var a00 = a[0], a01 = a[1], a02 = a[2],\n a10 = a[3], a11 = a[4], a12 = a[5],\n a20 = a[6], a21 = a[7], a22 = a[8];\n\n return a00 * (a22 * a11 - a12 * a21) + a01 * (-a22 * a10 + a12 * a20) + a02 * (a21 * a10 - a11 * a20);\n};\n\n/**\n * Multiplies two mat3's\n *\n * @param {mat3} out the receiving matrix\n * @param {mat3} a the first operand\n * @param {mat3} b the second operand\n * @returns {mat3} out\n */\nmat3.multiply = function (out, a, b) {\n var a00 = a[0], a01 = a[1], a02 = a[2],\n a10 = a[3], a11 = a[4], a12 = a[5],\n a20 = a[6], a21 = a[7], a22 = a[8],\n\n b00 = b[0], b01 = b[1], b02 = b[2],\n b10 = b[3], b11 = b[4], b12 = b[5],\n b20 = b[6], b21 = b[7], b22 = b[8];\n\n out[0] = b00 * a00 + b01 * a10 + b02 * a20;\n out[1] = b00 * a01 + b01 * a11 + b02 * a21;\n out[2] = b00 * a02 + b01 * a12 + b02 * a22;\n\n out[3] = b10 * a00 + b11 * a10 + b12 * a20;\n out[4] = b10 * a01 + b11 * a11 + b12 * a21;\n out[5] = b10 * a02 + b11 * a12 + b12 * a22;\n\n out[6] = b20 * a00 + b21 * a10 + b22 * a20;\n out[7] = b20 * a01 + b21 * a11 + b22 * a21;\n out[8] = b20 * a02 + b21 * a12 + b22 * a22;\n return out;\n};\n\n/**\n * Alias for {@link mat3.multiply}\n * @function\n */\nmat3.mul = mat3.multiply;\n\n/**\n * Translate a mat3 by the given vector\n *\n * @param {mat3} out the receiving matrix\n * @param {mat3} a the matrix to translate\n * @param {vec2} v vector to translate by\n * @returns {mat3} out\n */\nmat3.translate = function(out, a, v) {\n var a00 = a[0], a01 = a[1], a02 = a[2],\n a10 = a[3], a11 = a[4], a12 = a[5],\n a20 = a[6], a21 = a[7], a22 = a[8],\n x = v[0], y = v[1];\n\n out[0] = a00;\n out[1] = a01;\n out[2] = a02;\n\n out[3] = a10;\n out[4] = a11;\n out[5] = a12;\n\n out[6] = x * a00 + y * a10 + a20;\n out[7] = x * a01 + y * a11 + a21;\n out[8] = x * a02 + y * a12 + a22;\n return out;\n};\n\n/**\n * Rotates a mat3 by the given angle\n *\n * @param {mat3} out the receiving matrix\n * @param {mat3} a the matrix to rotate\n * @param {Number} rad the angle to rotate the matrix by\n * @returns {mat3} out\n */\nmat3.rotate = function (out, a, rad) {\n var a00 = a[0], a01 = a[1], a02 = a[2],\n a10 = a[3], a11 = a[4], a12 = a[5],\n a20 = a[6], a21 = a[7], a22 = a[8],\n\n s = Math.sin(rad),\n c = Math.cos(rad);\n\n out[0] = c * a00 + s * a10;\n out[1] = c * a01 + s * a11;\n out[2] = c * a02 + s * a12;\n\n out[3] = c * a10 - s * a00;\n out[4] = c * a11 - s * a01;\n out[5] = c * a12 - s * a02;\n\n out[6] = a20;\n out[7] = a21;\n out[8] = a22;\n return out;\n};\n\n/**\n * Scales the mat3 by the dimensions in the given vec2\n *\n * @param {mat3} out the receiving matrix\n * @param {mat3} a the matrix to rotate\n * @param {vec2} v the vec2 to scale the matrix by\n * @returns {mat3} out\n **/\nmat3.scale = function(out, a, v) {\n var x = v[0], y = v[1];\n\n out[0] = x * a[0];\n out[1] = x * a[1];\n out[2] = x * a[2];\n\n out[3] = y * a[3];\n out[4] = y * a[4];\n out[5] = y * a[5];\n\n out[6] = a[6];\n out[7] = a[7];\n out[8] = a[8];\n return out;\n};\n\n/**\n * Creates a matrix from a vector translation\n * This is equivalent to (but much faster than):\n *\n * mat3.identity(dest);\n * mat3.translate(dest, dest, vec);\n *\n * @param {mat3} out mat3 receiving operation result\n * @param {vec2} v Translation vector\n * @returns {mat3} out\n */\nmat3.fromTranslation = function(out, v) {\n out[0] = 1;\n out[1] = 0;\n out[2] = 0;\n out[3] = 0;\n out[4] = 1;\n out[5] = 0;\n out[6] = v[0];\n out[7] = v[1];\n out[8] = 1;\n return out;\n}\n\n/**\n * Creates a matrix from a given angle\n * This is equivalent to (but much faster than):\n *\n * mat3.identity(dest);\n * mat3.rotate(dest, dest, rad);\n *\n * @param {mat3} out mat3 receiving operation result\n * @param {Number} rad the angle to rotate the matrix by\n * @returns {mat3} out\n */\nmat3.fromRotation = function(out, rad) {\n var s = Math.sin(rad), c = Math.cos(rad);\n\n out[0] = c;\n out[1] = s;\n out[2] = 0;\n\n out[3] = -s;\n out[4] = c;\n out[5] = 0;\n\n out[6] = 0;\n out[7] = 0;\n out[8] = 1;\n return out;\n}\n\n/**\n * Creates a matrix from a vector scaling\n * This is equivalent to (but much faster than):\n *\n * mat3.identity(dest);\n * mat3.scale(dest, dest, vec);\n *\n * @param {mat3} out mat3 receiving operation result\n * @param {vec2} v Scaling vector\n * @returns {mat3} out\n */\nmat3.fromScaling = function(out, v) {\n out[0] = v[0];\n out[1] = 0;\n out[2] = 0;\n\n out[3] = 0;\n out[4] = v[1];\n out[5] = 0;\n\n out[6] = 0;\n out[7] = 0;\n out[8] = 1;\n return out;\n}\n\n/**\n * Copies the values from a mat2d into a mat3\n *\n * @param {mat3} out the receiving matrix\n * @param {mat2d} a the matrix to copy\n * @returns {mat3} out\n **/\nmat3.fromMat2d = function(out, a) {\n out[0] = a[0];\n out[1] = a[1];\n out[2] = 0;\n\n out[3] = a[2];\n out[4] = a[3];\n out[5] = 0;\n\n out[6] = a[4];\n out[7] = a[5];\n out[8] = 1;\n return out;\n};\n\n/**\n* Calculates a 3x3 matrix from the given quaternion\n*\n* @param {mat3} out mat3 receiving operation result\n* @param {quat} q Quaternion to create matrix from\n*\n* @returns {mat3} out\n*/\nmat3.fromQuat = function (out, q) {\n var x = q[0], y = q[1], z = q[2], w = q[3],\n x2 = x + x,\n y2 = y + y,\n z2 = z + z,\n\n xx = x * x2,\n yx = y * x2,\n yy = y * y2,\n zx = z * x2,\n zy = z * y2,\n zz = z * z2,\n wx = w * x2,\n wy = w * y2,\n wz = w * z2;\n\n out[0] = 1 - yy - zz;\n out[3] = yx - wz;\n out[6] = zx + wy;\n\n out[1] = yx + wz;\n out[4] = 1 - xx - zz;\n out[7] = zy - wx;\n\n out[2] = zx - wy;\n out[5] = zy + wx;\n out[8] = 1 - xx - yy;\n\n return out;\n};\n\n/**\n* Calculates a 3x3 normal matrix (transpose inverse) from the 4x4 matrix\n*\n* @param {mat3} out mat3 receiving operation result\n* @param {mat4} a Mat4 to derive the normal matrix from\n*\n* @returns {mat3} out\n*/\nmat3.normalFromMat4 = function (out, a) {\n var a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3],\n a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7],\n a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11],\n a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15],\n\n b00 = a00 * a11 - a01 * a10,\n b01 = a00 * a12 - a02 * a10,\n b02 = a00 * a13 - a03 * a10,\n b03 = a01 * a12 - a02 * a11,\n b04 = a01 * a13 - a03 * a11,\n b05 = a02 * a13 - a03 * a12,\n b06 = a20 * a31 - a21 * a30,\n b07 = a20 * a32 - a22 * a30,\n b08 = a20 * a33 - a23 * a30,\n b09 = a21 * a32 - a22 * a31,\n b10 = a21 * a33 - a23 * a31,\n b11 = a22 * a33 - a23 * a32,\n\n // Calculate the determinant\n det = b00 * b11 - b01 * b10 + b02 * b09 + b03 * b08 - b04 * b07 + b05 * b06;\n\n if (!det) { \n return null; \n }\n det = 1.0 / det;\n\n out[0] = (a11 * b11 - a12 * b10 + a13 * b09) * det;\n out[1] = (a12 * b08 - a10 * b11 - a13 * b07) * det;\n out[2] = (a10 * b10 - a11 * b08 + a13 * b06) * det;\n\n out[3] = (a02 * b10 - a01 * b11 - a03 * b09) * det;\n out[4] = (a00 * b11 - a02 * b08 + a03 * b07) * det;\n out[5] = (a01 * b08 - a00 * b10 - a03 * b06) * det;\n\n out[6] = (a31 * b05 - a32 * b04 + a33 * b03) * det;\n out[7] = (a32 * b02 - a30 * b05 - a33 * b01) * det;\n out[8] = (a30 * b04 - a31 * b02 + a33 * b00) * det;\n\n return out;\n};\n\n/**\n * Returns a string representation of a mat3\n *\n * @param {mat3} mat matrix to represent as a string\n * @returns {String} string representation of the matrix\n */\nmat3.str = function (a) {\n return 'mat3(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' + \n a[3] + ', ' + a[4] + ', ' + a[5] + ', ' + \n a[6] + ', ' + a[7] + ', ' + a[8] + ')';\n};\n\n/**\n * Returns Frobenius norm of a mat3\n *\n * @param {mat3} a the matrix to calculate Frobenius norm of\n * @returns {Number} Frobenius norm\n */\nmat3.frob = function (a) {\n return(Math.sqrt(Math.pow(a[0], 2) + Math.pow(a[1], 2) + Math.pow(a[2], 2) + Math.pow(a[3], 2) + Math.pow(a[4], 2) + Math.pow(a[5], 2) + Math.pow(a[6], 2) + Math.pow(a[7], 2) + Math.pow(a[8], 2)))\n};\n\n\nmodule.exports = mat3;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/gl-matrix/src/gl-matrix/mat3.js\n ** module id = 13\n ** module chunks = 0\n **/","/* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV.\n\nPermission is hereby granted, free of charge, to any person obtaining a copy\nof this software and associated documentation files (the \"Software\"), to deal\nin the Software without restriction, including without limitation the rights\nto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\ncopies of the Software, and to permit persons to whom the Software is\nfurnished to do so, subject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in\nall copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\nFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\nAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\nLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\nOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\nTHE SOFTWARE. */\n\nvar glMatrix = require(\"./common.js\");\n\n/**\n * @class 4x4 Matrix\n * @name mat4\n */\nvar mat4 = {};\n\n/**\n * Creates a new identity mat4\n *\n * @returns {mat4} a new 4x4 matrix\n */\nmat4.create = function() {\n var out = new glMatrix.ARRAY_TYPE(16);\n out[0] = 1;\n out[1] = 0;\n out[2] = 0;\n out[3] = 0;\n out[4] = 0;\n out[5] = 1;\n out[6] = 0;\n out[7] = 0;\n out[8] = 0;\n out[9] = 0;\n out[10] = 1;\n out[11] = 0;\n out[12] = 0;\n out[13] = 0;\n out[14] = 0;\n out[15] = 1;\n return out;\n};\n\n/**\n * Creates a new mat4 initialized with values from an existing matrix\n *\n * @param {mat4} a matrix to clone\n * @returns {mat4} a new 4x4 matrix\n */\nmat4.clone = function(a) {\n var out = new glMatrix.ARRAY_TYPE(16);\n out[0] = a[0];\n out[1] = a[1];\n out[2] = a[2];\n out[3] = a[3];\n out[4] = a[4];\n out[5] = a[5];\n out[6] = a[6];\n out[7] = a[7];\n out[8] = a[8];\n out[9] = a[9];\n out[10] = a[10];\n out[11] = a[11];\n out[12] = a[12];\n out[13] = a[13];\n out[14] = a[14];\n out[15] = a[15];\n return out;\n};\n\n/**\n * Copy the values from one mat4 to another\n *\n * @param {mat4} out the receiving matrix\n * @param {mat4} a the source matrix\n * @returns {mat4} out\n */\nmat4.copy = function(out, a) {\n out[0] = a[0];\n out[1] = a[1];\n out[2] = a[2];\n out[3] = a[3];\n out[4] = a[4];\n out[5] = a[5];\n out[6] = a[6];\n out[7] = a[7];\n out[8] = a[8];\n out[9] = a[9];\n out[10] = a[10];\n out[11] = a[11];\n out[12] = a[12];\n out[13] = a[13];\n out[14] = a[14];\n out[15] = a[15];\n return out;\n};\n\n/**\n * Set a mat4 to the identity matrix\n *\n * @param {mat4} out the receiving matrix\n * @returns {mat4} out\n */\nmat4.identity = function(out) {\n out[0] = 1;\n out[1] = 0;\n out[2] = 0;\n out[3] = 0;\n out[4] = 0;\n out[5] = 1;\n out[6] = 0;\n out[7] = 0;\n out[8] = 0;\n out[9] = 0;\n out[10] = 1;\n out[11] = 0;\n out[12] = 0;\n out[13] = 0;\n out[14] = 0;\n out[15] = 1;\n return out;\n};\n\n/**\n * Transpose the values of a mat4\n *\n * @param {mat4} out the receiving matrix\n * @param {mat4} a the source matrix\n * @returns {mat4} out\n */\nmat4.transpose = function(out, a) {\n // If we are transposing ourselves we can skip a few steps but have to cache some values\n if (out === a) {\n var a01 = a[1], a02 = a[2], a03 = a[3],\n a12 = a[6], a13 = a[7],\n a23 = a[11];\n\n out[1] = a[4];\n out[2] = a[8];\n out[3] = a[12];\n out[4] = a01;\n out[6] = a[9];\n out[7] = a[13];\n out[8] = a02;\n out[9] = a12;\n out[11] = a[14];\n out[12] = a03;\n out[13] = a13;\n out[14] = a23;\n } else {\n out[0] = a[0];\n out[1] = a[4];\n out[2] = a[8];\n out[3] = a[12];\n out[4] = a[1];\n out[5] = a[5];\n out[6] = a[9];\n out[7] = a[13];\n out[8] = a[2];\n out[9] = a[6];\n out[10] = a[10];\n out[11] = a[14];\n out[12] = a[3];\n out[13] = a[7];\n out[14] = a[11];\n out[15] = a[15];\n }\n \n return out;\n};\n\n/**\n * Inverts a mat4\n *\n * @param {mat4} out the receiving matrix\n * @param {mat4} a the source matrix\n * @returns {mat4} out\n */\nmat4.invert = function(out, a) {\n var a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3],\n a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7],\n a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11],\n a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15],\n\n b00 = a00 * a11 - a01 * a10,\n b01 = a00 * a12 - a02 * a10,\n b02 = a00 * a13 - a03 * a10,\n b03 = a01 * a12 - a02 * a11,\n b04 = a01 * a13 - a03 * a11,\n b05 = a02 * a13 - a03 * a12,\n b06 = a20 * a31 - a21 * a30,\n b07 = a20 * a32 - a22 * a30,\n b08 = a20 * a33 - a23 * a30,\n b09 = a21 * a32 - a22 * a31,\n b10 = a21 * a33 - a23 * a31,\n b11 = a22 * a33 - a23 * a32,\n\n // Calculate the determinant\n det = b00 * b11 - b01 * b10 + b02 * b09 + b03 * b08 - b04 * b07 + b05 * b06;\n\n if (!det) { \n return null; \n }\n det = 1.0 / det;\n\n out[0] = (a11 * b11 - a12 * b10 + a13 * b09) * det;\n out[1] = (a02 * b10 - a01 * b11 - a03 * b09) * det;\n out[2] = (a31 * b05 - a32 * b04 + a33 * b03) * det;\n out[3] = (a22 * b04 - a21 * b05 - a23 * b03) * det;\n out[4] = (a12 * b08 - a10 * b11 - a13 * b07) * det;\n out[5] = (a00 * b11 - a02 * b08 + a03 * b07) * det;\n out[6] = (a32 * b02 - a30 * b05 - a33 * b01) * det;\n out[7] = (a20 * b05 - a22 * b02 + a23 * b01) * det;\n out[8] = (a10 * b10 - a11 * b08 + a13 * b06) * det;\n out[9] = (a01 * b08 - a00 * b10 - a03 * b06) * det;\n out[10] = (a30 * b04 - a31 * b02 + a33 * b00) * det;\n out[11] = (a21 * b02 - a20 * b04 - a23 * b00) * det;\n out[12] = (a11 * b07 - a10 * b09 - a12 * b06) * det;\n out[13] = (a00 * b09 - a01 * b07 + a02 * b06) * det;\n out[14] = (a31 * b01 - a30 * b03 - a32 * b00) * det;\n out[15] = (a20 * b03 - a21 * b01 + a22 * b00) * det;\n\n return out;\n};\n\n/**\n * Calculates the adjugate of a mat4\n *\n * @param {mat4} out the receiving matrix\n * @param {mat4} a the source matrix\n * @returns {mat4} out\n */\nmat4.adjoint = function(out, a) {\n var a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3],\n a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7],\n a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11],\n a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15];\n\n out[0] = (a11 * (a22 * a33 - a23 * a32) - a21 * (a12 * a33 - a13 * a32) + a31 * (a12 * a23 - a13 * a22));\n out[1] = -(a01 * (a22 * a33 - a23 * a32) - a21 * (a02 * a33 - a03 * a32) + a31 * (a02 * a23 - a03 * a22));\n out[2] = (a01 * (a12 * a33 - a13 * a32) - a11 * (a02 * a33 - a03 * a32) + a31 * (a02 * a13 - a03 * a12));\n out[3] = -(a01 * (a12 * a23 - a13 * a22) - a11 * (a02 * a23 - a03 * a22) + a21 * (a02 * a13 - a03 * a12));\n out[4] = -(a10 * (a22 * a33 - a23 * a32) - a20 * (a12 * a33 - a13 * a32) + a30 * (a12 * a23 - a13 * a22));\n out[5] = (a00 * (a22 * a33 - a23 * a32) - a20 * (a02 * a33 - a03 * a32) + a30 * (a02 * a23 - a03 * a22));\n out[6] = -(a00 * (a12 * a33 - a13 * a32) - a10 * (a02 * a33 - a03 * a32) + a30 * (a02 * a13 - a03 * a12));\n out[7] = (a00 * (a12 * a23 - a13 * a22) - a10 * (a02 * a23 - a03 * a22) + a20 * (a02 * a13 - a03 * a12));\n out[8] = (a10 * (a21 * a33 - a23 * a31) - a20 * (a11 * a33 - a13 * a31) + a30 * (a11 * a23 - a13 * a21));\n out[9] = -(a00 * (a21 * a33 - a23 * a31) - a20 * (a01 * a33 - a03 * a31) + a30 * (a01 * a23 - a03 * a21));\n out[10] = (a00 * (a11 * a33 - a13 * a31) - a10 * (a01 * a33 - a03 * a31) + a30 * (a01 * a13 - a03 * a11));\n out[11] = -(a00 * (a11 * a23 - a13 * a21) - a10 * (a01 * a23 - a03 * a21) + a20 * (a01 * a13 - a03 * a11));\n out[12] = -(a10 * (a21 * a32 - a22 * a31) - a20 * (a11 * a32 - a12 * a31) + a30 * (a11 * a22 - a12 * a21));\n out[13] = (a00 * (a21 * a32 - a22 * a31) - a20 * (a01 * a32 - a02 * a31) + a30 * (a01 * a22 - a02 * a21));\n out[14] = -(a00 * (a11 * a32 - a12 * a31) - a10 * (a01 * a32 - a02 * a31) + a30 * (a01 * a12 - a02 * a11));\n out[15] = (a00 * (a11 * a22 - a12 * a21) - a10 * (a01 * a22 - a02 * a21) + a20 * (a01 * a12 - a02 * a11));\n return out;\n};\n\n/**\n * Calculates the determinant of a mat4\n *\n * @param {mat4} a the source matrix\n * @returns {Number} determinant of a\n */\nmat4.determinant = function (a) {\n var a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3],\n a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7],\n a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11],\n a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15],\n\n b00 = a00 * a11 - a01 * a10,\n b01 = a00 * a12 - a02 * a10,\n b02 = a00 * a13 - a03 * a10,\n b03 = a01 * a12 - a02 * a11,\n b04 = a01 * a13 - a03 * a11,\n b05 = a02 * a13 - a03 * a12,\n b06 = a20 * a31 - a21 * a30,\n b07 = a20 * a32 - a22 * a30,\n b08 = a20 * a33 - a23 * a30,\n b09 = a21 * a32 - a22 * a31,\n b10 = a21 * a33 - a23 * a31,\n b11 = a22 * a33 - a23 * a32;\n\n // Calculate the determinant\n return b00 * b11 - b01 * b10 + b02 * b09 + b03 * b08 - b04 * b07 + b05 * b06;\n};\n\n/**\n * Multiplies two mat4's\n *\n * @param {mat4} out the receiving matrix\n * @param {mat4} a the first operand\n * @param {mat4} b the second operand\n * @returns {mat4} out\n */\nmat4.multiply = function (out, a, b) {\n var a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3],\n a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7],\n a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11],\n a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15];\n\n // Cache only the current line of the second matrix\n var b0 = b[0], b1 = b[1], b2 = b[2], b3 = b[3]; \n out[0] = b0*a00 + b1*a10 + b2*a20 + b3*a30;\n out[1] = b0*a01 + b1*a11 + b2*a21 + b3*a31;\n out[2] = b0*a02 + b1*a12 + b2*a22 + b3*a32;\n out[3] = b0*a03 + b1*a13 + b2*a23 + b3*a33;\n\n b0 = b[4]; b1 = b[5]; b2 = b[6]; b3 = b[7];\n out[4] = b0*a00 + b1*a10 + b2*a20 + b3*a30;\n out[5] = b0*a01 + b1*a11 + b2*a21 + b3*a31;\n out[6] = b0*a02 + b1*a12 + b2*a22 + b3*a32;\n out[7] = b0*a03 + b1*a13 + b2*a23 + b3*a33;\n\n b0 = b[8]; b1 = b[9]; b2 = b[10]; b3 = b[11];\n out[8] = b0*a00 + b1*a10 + b2*a20 + b3*a30;\n out[9] = b0*a01 + b1*a11 + b2*a21 + b3*a31;\n out[10] = b0*a02 + b1*a12 + b2*a22 + b3*a32;\n out[11] = b0*a03 + b1*a13 + b2*a23 + b3*a33;\n\n b0 = b[12]; b1 = b[13]; b2 = b[14]; b3 = b[15];\n out[12] = b0*a00 + b1*a10 + b2*a20 + b3*a30;\n out[13] = b0*a01 + b1*a11 + b2*a21 + b3*a31;\n out[14] = b0*a02 + b1*a12 + b2*a22 + b3*a32;\n out[15] = b0*a03 + b1*a13 + b2*a23 + b3*a33;\n return out;\n};\n\n/**\n * Alias for {@link mat4.multiply}\n * @function\n */\nmat4.mul = mat4.multiply;\n\n/**\n * Translate a mat4 by the given vector\n *\n * @param {mat4} out the receiving matrix\n * @param {mat4} a the matrix to translate\n * @param {vec3} v vector to translate by\n * @returns {mat4} out\n */\nmat4.translate = function (out, a, v) {\n var x = v[0], y = v[1], z = v[2],\n a00, a01, a02, a03,\n a10, a11, a12, a13,\n a20, a21, a22, a23;\n\n if (a === out) {\n out[12] = a[0] * x + a[4] * y + a[8] * z + a[12];\n out[13] = a[1] * x + a[5] * y + a[9] * z + a[13];\n out[14] = a[2] * x + a[6] * y + a[10] * z + a[14];\n out[15] = a[3] * x + a[7] * y + a[11] * z + a[15];\n } else {\n a00 = a[0]; a01 = a[1]; a02 = a[2]; a03 = a[3];\n a10 = a[4]; a11 = a[5]; a12 = a[6]; a13 = a[7];\n a20 = a[8]; a21 = a[9]; a22 = a[10]; a23 = a[11];\n\n out[0] = a00; out[1] = a01; out[2] = a02; out[3] = a03;\n out[4] = a10; out[5] = a11; out[6] = a12; out[7] = a13;\n out[8] = a20; out[9] = a21; out[10] = a22; out[11] = a23;\n\n out[12] = a00 * x + a10 * y + a20 * z + a[12];\n out[13] = a01 * x + a11 * y + a21 * z + a[13];\n out[14] = a02 * x + a12 * y + a22 * z + a[14];\n out[15] = a03 * x + a13 * y + a23 * z + a[15];\n }\n\n return out;\n};\n\n/**\n * Scales the mat4 by the dimensions in the given vec3\n *\n * @param {mat4} out the receiving matrix\n * @param {mat4} a the matrix to scale\n * @param {vec3} v the vec3 to scale the matrix by\n * @returns {mat4} out\n **/\nmat4.scale = function(out, a, v) {\n var x = v[0], y = v[1], z = v[2];\n\n out[0] = a[0] * x;\n out[1] = a[1] * x;\n out[2] = a[2] * x;\n out[3] = a[3] * x;\n out[4] = a[4] * y;\n out[5] = a[5] * y;\n out[6] = a[6] * y;\n out[7] = a[7] * y;\n out[8] = a[8] * z;\n out[9] = a[9] * z;\n out[10] = a[10] * z;\n out[11] = a[11] * z;\n out[12] = a[12];\n out[13] = a[13];\n out[14] = a[14];\n out[15] = a[15];\n return out;\n};\n\n/**\n * Rotates a mat4 by the given angle around the given axis\n *\n * @param {mat4} out the receiving matrix\n * @param {mat4} a the matrix to rotate\n * @param {Number} rad the angle to rotate the matrix by\n * @param {vec3} axis the axis to rotate around\n * @returns {mat4} out\n */\nmat4.rotate = function (out, a, rad, axis) {\n var x = axis[0], y = axis[1], z = axis[2],\n len = Math.sqrt(x * x + y * y + z * z),\n s, c, t,\n a00, a01, a02, a03,\n a10, a11, a12, a13,\n a20, a21, a22, a23,\n b00, b01, b02,\n b10, b11, b12,\n b20, b21, b22;\n\n if (Math.abs(len) < glMatrix.EPSILON) { return null; }\n \n len = 1 / len;\n x *= len;\n y *= len;\n z *= len;\n\n s = Math.sin(rad);\n c = Math.cos(rad);\n t = 1 - c;\n\n a00 = a[0]; a01 = a[1]; a02 = a[2]; a03 = a[3];\n a10 = a[4]; a11 = a[5]; a12 = a[6]; a13 = a[7];\n a20 = a[8]; a21 = a[9]; a22 = a[10]; a23 = a[11];\n\n // Construct the elements of the rotation matrix\n b00 = x * x * t + c; b01 = y * x * t + z * s; b02 = z * x * t - y * s;\n b10 = x * y * t - z * s; b11 = y * y * t + c; b12 = z * y * t + x * s;\n b20 = x * z * t + y * s; b21 = y * z * t - x * s; b22 = z * z * t + c;\n\n // Perform rotation-specific matrix multiplication\n out[0] = a00 * b00 + a10 * b01 + a20 * b02;\n out[1] = a01 * b00 + a11 * b01 + a21 * b02;\n out[2] = a02 * b00 + a12 * b01 + a22 * b02;\n out[3] = a03 * b00 + a13 * b01 + a23 * b02;\n out[4] = a00 * b10 + a10 * b11 + a20 * b12;\n out[5] = a01 * b10 + a11 * b11 + a21 * b12;\n out[6] = a02 * b10 + a12 * b11 + a22 * b12;\n out[7] = a03 * b10 + a13 * b11 + a23 * b12;\n out[8] = a00 * b20 + a10 * b21 + a20 * b22;\n out[9] = a01 * b20 + a11 * b21 + a21 * b22;\n out[10] = a02 * b20 + a12 * b21 + a22 * b22;\n out[11] = a03 * b20 + a13 * b21 + a23 * b22;\n\n if (a !== out) { // If the source and destination differ, copy the unchanged last row\n out[12] = a[12];\n out[13] = a[13];\n out[14] = a[14];\n out[15] = a[15];\n }\n return out;\n};\n\n/**\n * Rotates a matrix by the given angle around the X axis\n *\n * @param {mat4} out the receiving matrix\n * @param {mat4} a the matrix to rotate\n * @param {Number} rad the angle to rotate the matrix by\n * @returns {mat4} out\n */\nmat4.rotateX = function (out, a, rad) {\n var s = Math.sin(rad),\n c = Math.cos(rad),\n a10 = a[4],\n a11 = a[5],\n a12 = a[6],\n a13 = a[7],\n a20 = a[8],\n a21 = a[9],\n a22 = a[10],\n a23 = a[11];\n\n if (a !== out) { // If the source and destination differ, copy the unchanged rows\n out[0] = a[0];\n out[1] = a[1];\n out[2] = a[2];\n out[3] = a[3];\n out[12] = a[12];\n out[13] = a[13];\n out[14] = a[14];\n out[15] = a[15];\n }\n\n // Perform axis-specific matrix multiplication\n out[4] = a10 * c + a20 * s;\n out[5] = a11 * c + a21 * s;\n out[6] = a12 * c + a22 * s;\n out[7] = a13 * c + a23 * s;\n out[8] = a20 * c - a10 * s;\n out[9] = a21 * c - a11 * s;\n out[10] = a22 * c - a12 * s;\n out[11] = a23 * c - a13 * s;\n return out;\n};\n\n/**\n * Rotates a matrix by the given angle around the Y axis\n *\n * @param {mat4} out the receiving matrix\n * @param {mat4} a the matrix to rotate\n * @param {Number} rad the angle to rotate the matrix by\n * @returns {mat4} out\n */\nmat4.rotateY = function (out, a, rad) {\n var s = Math.sin(rad),\n c = Math.cos(rad),\n a00 = a[0],\n a01 = a[1],\n a02 = a[2],\n a03 = a[3],\n a20 = a[8],\n a21 = a[9],\n a22 = a[10],\n a23 = a[11];\n\n if (a !== out) { // If the source and destination differ, copy the unchanged rows\n out[4] = a[4];\n out[5] = a[5];\n out[6] = a[6];\n out[7] = a[7];\n out[12] = a[12];\n out[13] = a[13];\n out[14] = a[14];\n out[15] = a[15];\n }\n\n // Perform axis-specific matrix multiplication\n out[0] = a00 * c - a20 * s;\n out[1] = a01 * c - a21 * s;\n out[2] = a02 * c - a22 * s;\n out[3] = a03 * c - a23 * s;\n out[8] = a00 * s + a20 * c;\n out[9] = a01 * s + a21 * c;\n out[10] = a02 * s + a22 * c;\n out[11] = a03 * s + a23 * c;\n return out;\n};\n\n/**\n * Rotates a matrix by the given angle around the Z axis\n *\n * @param {mat4} out the receiving matrix\n * @param {mat4} a the matrix to rotate\n * @param {Number} rad the angle to rotate the matrix by\n * @returns {mat4} out\n */\nmat4.rotateZ = function (out, a, rad) {\n var s = Math.sin(rad),\n c = Math.cos(rad),\n a00 = a[0],\n a01 = a[1],\n a02 = a[2],\n a03 = a[3],\n a10 = a[4],\n a11 = a[5],\n a12 = a[6],\n a13 = a[7];\n\n if (a !== out) { // If the source and destination differ, copy the unchanged last row\n out[8] = a[8];\n out[9] = a[9];\n out[10] = a[10];\n out[11] = a[11];\n out[12] = a[12];\n out[13] = a[13];\n out[14] = a[14];\n out[15] = a[15];\n }\n\n // Perform axis-specific matrix multiplication\n out[0] = a00 * c + a10 * s;\n out[1] = a01 * c + a11 * s;\n out[2] = a02 * c + a12 * s;\n out[3] = a03 * c + a13 * s;\n out[4] = a10 * c - a00 * s;\n out[5] = a11 * c - a01 * s;\n out[6] = a12 * c - a02 * s;\n out[7] = a13 * c - a03 * s;\n return out;\n};\n\n/**\n * Creates a matrix from a vector translation\n * This is equivalent to (but much faster than):\n *\n * mat4.identity(dest);\n * mat4.translate(dest, dest, vec);\n *\n * @param {mat4} out mat4 receiving operation result\n * @param {vec3} v Translation vector\n * @returns {mat4} out\n */\nmat4.fromTranslation = function(out, v) {\n out[0] = 1;\n out[1] = 0;\n out[2] = 0;\n out[3] = 0;\n out[4] = 0;\n out[5] = 1;\n out[6] = 0;\n out[7] = 0;\n out[8] = 0;\n out[9] = 0;\n out[10] = 1;\n out[11] = 0;\n out[12] = v[0];\n out[13] = v[1];\n out[14] = v[2];\n out[15] = 1;\n return out;\n}\n\n/**\n * Creates a matrix from a vector scaling\n * This is equivalent to (but much faster than):\n *\n * mat4.identity(dest);\n * mat4.scale(dest, dest, vec);\n *\n * @param {mat4} out mat4 receiving operation result\n * @param {vec3} v Scaling vector\n * @returns {mat4} out\n */\nmat4.fromScaling = function(out, v) {\n out[0] = v[0];\n out[1] = 0;\n out[2] = 0;\n out[3] = 0;\n out[4] = 0;\n out[5] = v[1];\n out[6] = 0;\n out[7] = 0;\n out[8] = 0;\n out[9] = 0;\n out[10] = v[2];\n out[11] = 0;\n out[12] = 0;\n out[13] = 0;\n out[14] = 0;\n out[15] = 1;\n return out;\n}\n\n/**\n * Creates a matrix from a given angle around a given axis\n * This is equivalent to (but much faster than):\n *\n * mat4.identity(dest);\n * mat4.rotate(dest, dest, rad, axis);\n *\n * @param {mat4} out mat4 receiving operation result\n * @param {Number} rad the angle to rotate the matrix by\n * @param {vec3} axis the axis to rotate around\n * @returns {mat4} out\n */\nmat4.fromRotation = function(out, rad, axis) {\n var x = axis[0], y = axis[1], z = axis[2],\n len = Math.sqrt(x * x + y * y + z * z),\n s, c, t;\n \n if (Math.abs(len) < glMatrix.EPSILON) { return null; }\n \n len = 1 / len;\n x *= len;\n y *= len;\n z *= len;\n \n s = Math.sin(rad);\n c = Math.cos(rad);\n t = 1 - c;\n \n // Perform rotation-specific matrix multiplication\n out[0] = x * x * t + c;\n out[1] = y * x * t + z * s;\n out[2] = z * x * t - y * s;\n out[3] = 0;\n out[4] = x * y * t - z * s;\n out[5] = y * y * t + c;\n out[6] = z * y * t + x * s;\n out[7] = 0;\n out[8] = x * z * t + y * s;\n out[9] = y * z * t - x * s;\n out[10] = z * z * t + c;\n out[11] = 0;\n out[12] = 0;\n out[13] = 0;\n out[14] = 0;\n out[15] = 1;\n return out;\n}\n\n/**\n * Creates a matrix from the given angle around the X axis\n * This is equivalent to (but much faster than):\n *\n * mat4.identity(dest);\n * mat4.rotateX(dest, dest, rad);\n *\n * @param {mat4} out mat4 receiving operation result\n * @param {Number} rad the angle to rotate the matrix by\n * @returns {mat4} out\n */\nmat4.fromXRotation = function(out, rad) {\n var s = Math.sin(rad),\n c = Math.cos(rad);\n \n // Perform axis-specific matrix multiplication\n out[0] = 1;\n out[1] = 0;\n out[2] = 0;\n out[3] = 0;\n out[4] = 0;\n out[5] = c;\n out[6] = s;\n out[7] = 0;\n out[8] = 0;\n out[9] = -s;\n out[10] = c;\n out[11] = 0;\n out[12] = 0;\n out[13] = 0;\n out[14] = 0;\n out[15] = 1;\n return out;\n}\n\n/**\n * Creates a matrix from the given angle around the Y axis\n * This is equivalent to (but much faster than):\n *\n * mat4.identity(dest);\n * mat4.rotateY(dest, dest, rad);\n *\n * @param {mat4} out mat4 receiving operation result\n * @param {Number} rad the angle to rotate the matrix by\n * @returns {mat4} out\n */\nmat4.fromYRotation = function(out, rad) {\n var s = Math.sin(rad),\n c = Math.cos(rad);\n \n // Perform axis-specific matrix multiplication\n out[0] = c;\n out[1] = 0;\n out[2] = -s;\n out[3] = 0;\n out[4] = 0;\n out[5] = 1;\n out[6] = 0;\n out[7] = 0;\n out[8] = s;\n out[9] = 0;\n out[10] = c;\n out[11] = 0;\n out[12] = 0;\n out[13] = 0;\n out[14] = 0;\n out[15] = 1;\n return out;\n}\n\n/**\n * Creates a matrix from the given angle around the Z axis\n * This is equivalent to (but much faster than):\n *\n * mat4.identity(dest);\n * mat4.rotateZ(dest, dest, rad);\n *\n * @param {mat4} out mat4 receiving operation result\n * @param {Number} rad the angle to rotate the matrix by\n * @returns {mat4} out\n */\nmat4.fromZRotation = function(out, rad) {\n var s = Math.sin(rad),\n c = Math.cos(rad);\n \n // Perform axis-specific matrix multiplication\n out[0] = c;\n out[1] = s;\n out[2] = 0;\n out[3] = 0;\n out[4] = -s;\n out[5] = c;\n out[6] = 0;\n out[7] = 0;\n out[8] = 0;\n out[9] = 0;\n out[10] = 1;\n out[11] = 0;\n out[12] = 0;\n out[13] = 0;\n out[14] = 0;\n out[15] = 1;\n return out;\n}\n\n/**\n * Creates a matrix from a quaternion rotation and vector translation\n * This is equivalent to (but much faster than):\n *\n * mat4.identity(dest);\n * mat4.translate(dest, vec);\n * var quatMat = mat4.create();\n * quat4.toMat4(quat, quatMat);\n * mat4.multiply(dest, quatMat);\n *\n * @param {mat4} out mat4 receiving operation result\n * @param {quat4} q Rotation quaternion\n * @param {vec3} v Translation vector\n * @returns {mat4} out\n */\nmat4.fromRotationTranslation = function (out, q, v) {\n // Quaternion math\n var x = q[0], y = q[1], z = q[2], w = q[3],\n x2 = x + x,\n y2 = y + y,\n z2 = z + z,\n\n xx = x * x2,\n xy = x * y2,\n xz = x * z2,\n yy = y * y2,\n yz = y * z2,\n zz = z * z2,\n wx = w * x2,\n wy = w * y2,\n wz = w * z2;\n\n out[0] = 1 - (yy + zz);\n out[1] = xy + wz;\n out[2] = xz - wy;\n out[3] = 0;\n out[4] = xy - wz;\n out[5] = 1 - (xx + zz);\n out[6] = yz + wx;\n out[7] = 0;\n out[8] = xz + wy;\n out[9] = yz - wx;\n out[10] = 1 - (xx + yy);\n out[11] = 0;\n out[12] = v[0];\n out[13] = v[1];\n out[14] = v[2];\n out[15] = 1;\n \n return out;\n};\n\n/**\n * Creates a matrix from a quaternion rotation, vector translation and vector scale\n * This is equivalent to (but much faster than):\n *\n * mat4.identity(dest);\n * mat4.translate(dest, vec);\n * var quatMat = mat4.create();\n * quat4.toMat4(quat, quatMat);\n * mat4.multiply(dest, quatMat);\n * mat4.scale(dest, scale)\n *\n * @param {mat4} out mat4 receiving operation result\n * @param {quat4} q Rotation quaternion\n * @param {vec3} v Translation vector\n * @param {vec3} s Scaling vector\n * @returns {mat4} out\n */\nmat4.fromRotationTranslationScale = function (out, q, v, s) {\n // Quaternion math\n var x = q[0], y = q[1], z = q[2], w = q[3],\n x2 = x + x,\n y2 = y + y,\n z2 = z + z,\n\n xx = x * x2,\n xy = x * y2,\n xz = x * z2,\n yy = y * y2,\n yz = y * z2,\n zz = z * z2,\n wx = w * x2,\n wy = w * y2,\n wz = w * z2,\n sx = s[0],\n sy = s[1],\n sz = s[2];\n\n out[0] = (1 - (yy + zz)) * sx;\n out[1] = (xy + wz) * sx;\n out[2] = (xz - wy) * sx;\n out[3] = 0;\n out[4] = (xy - wz) * sy;\n out[5] = (1 - (xx + zz)) * sy;\n out[6] = (yz + wx) * sy;\n out[7] = 0;\n out[8] = (xz + wy) * sz;\n out[9] = (yz - wx) * sz;\n out[10] = (1 - (xx + yy)) * sz;\n out[11] = 0;\n out[12] = v[0];\n out[13] = v[1];\n out[14] = v[2];\n out[15] = 1;\n \n return out;\n};\n\n/**\n * Creates a matrix from a quaternion rotation, vector translation and vector scale, rotating and scaling around the given origin\n * This is equivalent to (but much faster than):\n *\n * mat4.identity(dest);\n * mat4.translate(dest, vec);\n * mat4.translate(dest, origin);\n * var quatMat = mat4.create();\n * quat4.toMat4(quat, quatMat);\n * mat4.multiply(dest, quatMat);\n * mat4.scale(dest, scale)\n * mat4.translate(dest, negativeOrigin);\n *\n * @param {mat4} out mat4 receiving operation result\n * @param {quat4} q Rotation quaternion\n * @param {vec3} v Translation vector\n * @param {vec3} s Scaling vector\n * @param {vec3} o The origin vector around which to scale and rotate\n * @returns {mat4} out\n */\nmat4.fromRotationTranslationScaleOrigin = function (out, q, v, s, o) {\n // Quaternion math\n var x = q[0], y = q[1], z = q[2], w = q[3],\n x2 = x + x,\n y2 = y + y,\n z2 = z + z,\n\n xx = x * x2,\n xy = x * y2,\n xz = x * z2,\n yy = y * y2,\n yz = y * z2,\n zz = z * z2,\n wx = w * x2,\n wy = w * y2,\n wz = w * z2,\n \n sx = s[0],\n sy = s[1],\n sz = s[2],\n\n ox = o[0],\n oy = o[1],\n oz = o[2];\n \n out[0] = (1 - (yy + zz)) * sx;\n out[1] = (xy + wz) * sx;\n out[2] = (xz - wy) * sx;\n out[3] = 0;\n out[4] = (xy - wz) * sy;\n out[5] = (1 - (xx + zz)) * sy;\n out[6] = (yz + wx) * sy;\n out[7] = 0;\n out[8] = (xz + wy) * sz;\n out[9] = (yz - wx) * sz;\n out[10] = (1 - (xx + yy)) * sz;\n out[11] = 0;\n out[12] = v[0] + ox - (out[0] * ox + out[4] * oy + out[8] * oz);\n out[13] = v[1] + oy - (out[1] * ox + out[5] * oy + out[9] * oz);\n out[14] = v[2] + oz - (out[2] * ox + out[6] * oy + out[10] * oz);\n out[15] = 1;\n \n return out;\n};\n\nmat4.fromQuat = function (out, q) {\n var x = q[0], y = q[1], z = q[2], w = q[3],\n x2 = x + x,\n y2 = y + y,\n z2 = z + z,\n\n xx = x * x2,\n yx = y * x2,\n yy = y * y2,\n zx = z * x2,\n zy = z * y2,\n zz = z * z2,\n wx = w * x2,\n wy = w * y2,\n wz = w * z2;\n\n out[0] = 1 - yy - zz;\n out[1] = yx + wz;\n out[2] = zx - wy;\n out[3] = 0;\n\n out[4] = yx - wz;\n out[5] = 1 - xx - zz;\n out[6] = zy + wx;\n out[7] = 0;\n\n out[8] = zx + wy;\n out[9] = zy - wx;\n out[10] = 1 - xx - yy;\n out[11] = 0;\n\n out[12] = 0;\n out[13] = 0;\n out[14] = 0;\n out[15] = 1;\n\n return out;\n};\n\n/**\n * Generates a frustum matrix with the given bounds\n *\n * @param {mat4} out mat4 frustum matrix will be written into\n * @param {Number} left Left bound of the frustum\n * @param {Number} right Right bound of the frustum\n * @param {Number} bottom Bottom bound of the frustum\n * @param {Number} top Top bound of the frustum\n * @param {Number} near Near bound of the frustum\n * @param {Number} far Far bound of the frustum\n * @returns {mat4} out\n */\nmat4.frustum = function (out, left, right, bottom, top, near, far) {\n var rl = 1 / (right - left),\n tb = 1 / (top - bottom),\n nf = 1 / (near - far);\n out[0] = (near * 2) * rl;\n out[1] = 0;\n out[2] = 0;\n out[3] = 0;\n out[4] = 0;\n out[5] = (near * 2) * tb;\n out[6] = 0;\n out[7] = 0;\n out[8] = (right + left) * rl;\n out[9] = (top + bottom) * tb;\n out[10] = (far + near) * nf;\n out[11] = -1;\n out[12] = 0;\n out[13] = 0;\n out[14] = (far * near * 2) * nf;\n out[15] = 0;\n return out;\n};\n\n/**\n * Generates a perspective projection matrix with the given bounds\n *\n * @param {mat4} out mat4 frustum matrix will be written into\n * @param {number} fovy Vertical field of view in radians\n * @param {number} aspect Aspect ratio. typically viewport width/height\n * @param {number} near Near bound of the frustum\n * @param {number} far Far bound of the frustum\n * @returns {mat4} out\n */\nmat4.perspective = function (out, fovy, aspect, near, far) {\n var f = 1.0 / Math.tan(fovy / 2),\n nf = 1 / (near - far);\n out[0] = f / aspect;\n out[1] = 0;\n out[2] = 0;\n out[3] = 0;\n out[4] = 0;\n out[5] = f;\n out[6] = 0;\n out[7] = 0;\n out[8] = 0;\n out[9] = 0;\n out[10] = (far + near) * nf;\n out[11] = -1;\n out[12] = 0;\n out[13] = 0;\n out[14] = (2 * far * near) * nf;\n out[15] = 0;\n return out;\n};\n\n/**\n * Generates a perspective projection matrix with the given field of view.\n * This is primarily useful for generating projection matrices to be used\n * with the still experiemental WebVR API.\n *\n * @param {mat4} out mat4 frustum matrix will be written into\n * @param {number} fov Object containing the following values: upDegrees, downDegrees, leftDegrees, rightDegrees\n * @param {number} near Near bound of the frustum\n * @param {number} far Far bound of the frustum\n * @returns {mat4} out\n */\nmat4.perspectiveFromFieldOfView = function (out, fov, near, far) {\n var upTan = Math.tan(fov.upDegrees * Math.PI/180.0),\n downTan = Math.tan(fov.downDegrees * Math.PI/180.0),\n leftTan = Math.tan(fov.leftDegrees * Math.PI/180.0),\n rightTan = Math.tan(fov.rightDegrees * Math.PI/180.0),\n xScale = 2.0 / (leftTan + rightTan),\n yScale = 2.0 / (upTan + downTan);\n\n out[0] = xScale;\n out[1] = 0.0;\n out[2] = 0.0;\n out[3] = 0.0;\n out[4] = 0.0;\n out[5] = yScale;\n out[6] = 0.0;\n out[7] = 0.0;\n out[8] = -((leftTan - rightTan) * xScale * 0.5);\n out[9] = ((upTan - downTan) * yScale * 0.5);\n out[10] = far / (near - far);\n out[11] = -1.0;\n out[12] = 0.0;\n out[13] = 0.0;\n out[14] = (far * near) / (near - far);\n out[15] = 0.0;\n return out;\n}\n\n/**\n * Generates a orthogonal projection matrix with the given bounds\n *\n * @param {mat4} out mat4 frustum matrix will be written into\n * @param {number} left Left bound of the frustum\n * @param {number} right Right bound of the frustum\n * @param {number} bottom Bottom bound of the frustum\n * @param {number} top Top bound of the frustum\n * @param {number} near Near bound of the frustum\n * @param {number} far Far bound of the frustum\n * @returns {mat4} out\n */\nmat4.ortho = function (out, left, right, bottom, top, near, far) {\n var lr = 1 / (left - right),\n bt = 1 / (bottom - top),\n nf = 1 / (near - far);\n out[0] = -2 * lr;\n out[1] = 0;\n out[2] = 0;\n out[3] = 0;\n out[4] = 0;\n out[5] = -2 * bt;\n out[6] = 0;\n out[7] = 0;\n out[8] = 0;\n out[9] = 0;\n out[10] = 2 * nf;\n out[11] = 0;\n out[12] = (left + right) * lr;\n out[13] = (top + bottom) * bt;\n out[14] = (far + near) * nf;\n out[15] = 1;\n return out;\n};\n\n/**\n * Generates a look-at matrix with the given eye position, focal point, and up axis\n *\n * @param {mat4} out mat4 frustum matrix will be written into\n * @param {vec3} eye Position of the viewer\n * @param {vec3} center Point the viewer is looking at\n * @param {vec3} up vec3 pointing up\n * @returns {mat4} out\n */\nmat4.lookAt = function (out, eye, center, up) {\n var x0, x1, x2, y0, y1, y2, z0, z1, z2, len,\n eyex = eye[0],\n eyey = eye[1],\n eyez = eye[2],\n upx = up[0],\n upy = up[1],\n upz = up[2],\n centerx = center[0],\n centery = center[1],\n centerz = center[2];\n\n if (Math.abs(eyex - centerx) < glMatrix.EPSILON &&\n Math.abs(eyey - centery) < glMatrix.EPSILON &&\n Math.abs(eyez - centerz) < glMatrix.EPSILON) {\n return mat4.identity(out);\n }\n\n z0 = eyex - centerx;\n z1 = eyey - centery;\n z2 = eyez - centerz;\n\n len = 1 / Math.sqrt(z0 * z0 + z1 * z1 + z2 * z2);\n z0 *= len;\n z1 *= len;\n z2 *= len;\n\n x0 = upy * z2 - upz * z1;\n x1 = upz * z0 - upx * z2;\n x2 = upx * z1 - upy * z0;\n len = Math.sqrt(x0 * x0 + x1 * x1 + x2 * x2);\n if (!len) {\n x0 = 0;\n x1 = 0;\n x2 = 0;\n } else {\n len = 1 / len;\n x0 *= len;\n x1 *= len;\n x2 *= len;\n }\n\n y0 = z1 * x2 - z2 * x1;\n y1 = z2 * x0 - z0 * x2;\n y2 = z0 * x1 - z1 * x0;\n\n len = Math.sqrt(y0 * y0 + y1 * y1 + y2 * y2);\n if (!len) {\n y0 = 0;\n y1 = 0;\n y2 = 0;\n } else {\n len = 1 / len;\n y0 *= len;\n y1 *= len;\n y2 *= len;\n }\n\n out[0] = x0;\n out[1] = y0;\n out[2] = z0;\n out[3] = 0;\n out[4] = x1;\n out[5] = y1;\n out[6] = z1;\n out[7] = 0;\n out[8] = x2;\n out[9] = y2;\n out[10] = z2;\n out[11] = 0;\n out[12] = -(x0 * eyex + x1 * eyey + x2 * eyez);\n out[13] = -(y0 * eyex + y1 * eyey + y2 * eyez);\n out[14] = -(z0 * eyex + z1 * eyey + z2 * eyez);\n out[15] = 1;\n\n return out;\n};\n\n/**\n * Returns a string representation of a mat4\n *\n * @param {mat4} mat matrix to represent as a string\n * @returns {String} string representation of the matrix\n */\nmat4.str = function (a) {\n return 'mat4(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' + a[3] + ', ' +\n a[4] + ', ' + a[5] + ', ' + a[6] + ', ' + a[7] + ', ' +\n a[8] + ', ' + a[9] + ', ' + a[10] + ', ' + a[11] + ', ' + \n a[12] + ', ' + a[13] + ', ' + a[14] + ', ' + a[15] + ')';\n};\n\n/**\n * Returns Frobenius norm of a mat4\n *\n * @param {mat4} a the matrix to calculate Frobenius norm of\n * @returns {Number} Frobenius norm\n */\nmat4.frob = function (a) {\n return(Math.sqrt(Math.pow(a[0], 2) + Math.pow(a[1], 2) + Math.pow(a[2], 2) + Math.pow(a[3], 2) + Math.pow(a[4], 2) + Math.pow(a[5], 2) + Math.pow(a[6], 2) + Math.pow(a[7], 2) + Math.pow(a[8], 2) + Math.pow(a[9], 2) + Math.pow(a[10], 2) + Math.pow(a[11], 2) + Math.pow(a[12], 2) + Math.pow(a[13], 2) + Math.pow(a[14], 2) + Math.pow(a[15], 2) ))\n};\n\n\nmodule.exports = mat4;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/gl-matrix/src/gl-matrix/mat4.js\n ** module id = 14\n ** module chunks = 0\n **/","/* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV.\n\nPermission is hereby granted, free of charge, to any person obtaining a copy\nof this software and associated documentation files (the \"Software\"), to deal\nin the Software without restriction, including without limitation the rights\nto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\ncopies of the Software, and to permit persons to whom the Software is\nfurnished to do so, subject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in\nall copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\nFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\nAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\nLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\nOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\nTHE SOFTWARE. */\n\nvar glMatrix = require(\"./common.js\");\nvar mat3 = require(\"./mat3.js\");\nvar vec3 = require(\"./vec3.js\");\nvar vec4 = require(\"./vec4.js\");\n\n/**\n * @class Quaternion\n * @name quat\n */\nvar quat = {};\n\n/**\n * Creates a new identity quat\n *\n * @returns {quat} a new quaternion\n */\nquat.create = function() {\n var out = new glMatrix.ARRAY_TYPE(4);\n out[0] = 0;\n out[1] = 0;\n out[2] = 0;\n out[3] = 1;\n return out;\n};\n\n/**\n * Sets a quaternion to represent the shortest rotation from one\n * vector to another.\n *\n * Both vectors are assumed to be unit length.\n *\n * @param {quat} out the receiving quaternion.\n * @param {vec3} a the initial vector\n * @param {vec3} b the destination vector\n * @returns {quat} out\n */\nquat.rotationTo = (function() {\n var tmpvec3 = vec3.create();\n var xUnitVec3 = vec3.fromValues(1,0,0);\n var yUnitVec3 = vec3.fromValues(0,1,0);\n\n return function(out, a, b) {\n var dot = vec3.dot(a, b);\n if (dot < -0.999999) {\n vec3.cross(tmpvec3, xUnitVec3, a);\n if (vec3.length(tmpvec3) < 0.000001)\n vec3.cross(tmpvec3, yUnitVec3, a);\n vec3.normalize(tmpvec3, tmpvec3);\n quat.setAxisAngle(out, tmpvec3, Math.PI);\n return out;\n } else if (dot > 0.999999) {\n out[0] = 0;\n out[1] = 0;\n out[2] = 0;\n out[3] = 1;\n return out;\n } else {\n vec3.cross(tmpvec3, a, b);\n out[0] = tmpvec3[0];\n out[1] = tmpvec3[1];\n out[2] = tmpvec3[2];\n out[3] = 1 + dot;\n return quat.normalize(out, out);\n }\n };\n})();\n\n/**\n * Sets the specified quaternion with values corresponding to the given\n * axes. Each axis is a vec3 and is expected to be unit length and\n * perpendicular to all other specified axes.\n *\n * @param {vec3} view the vector representing the viewing direction\n * @param {vec3} right the vector representing the local \"right\" direction\n * @param {vec3} up the vector representing the local \"up\" direction\n * @returns {quat} out\n */\nquat.setAxes = (function() {\n var matr = mat3.create();\n\n return function(out, view, right, up) {\n matr[0] = right[0];\n matr[3] = right[1];\n matr[6] = right[2];\n\n matr[1] = up[0];\n matr[4] = up[1];\n matr[7] = up[2];\n\n matr[2] = -view[0];\n matr[5] = -view[1];\n matr[8] = -view[2];\n\n return quat.normalize(out, quat.fromMat3(out, matr));\n };\n})();\n\n/**\n * Creates a new quat initialized with values from an existing quaternion\n *\n * @param {quat} a quaternion to clone\n * @returns {quat} a new quaternion\n * @function\n */\nquat.clone = vec4.clone;\n\n/**\n * Creates a new quat initialized with the given values\n *\n * @param {Number} x X component\n * @param {Number} y Y component\n * @param {Number} z Z component\n * @param {Number} w W component\n * @returns {quat} a new quaternion\n * @function\n */\nquat.fromValues = vec4.fromValues;\n\n/**\n * Copy the values from one quat to another\n *\n * @param {quat} out the receiving quaternion\n * @param {quat} a the source quaternion\n * @returns {quat} out\n * @function\n */\nquat.copy = vec4.copy;\n\n/**\n * Set the components of a quat to the given values\n *\n * @param {quat} out the receiving quaternion\n * @param {Number} x X component\n * @param {Number} y Y component\n * @param {Number} z Z component\n * @param {Number} w W component\n * @returns {quat} out\n * @function\n */\nquat.set = vec4.set;\n\n/**\n * Set a quat to the identity quaternion\n *\n * @param {quat} out the receiving quaternion\n * @returns {quat} out\n */\nquat.identity = function(out) {\n out[0] = 0;\n out[1] = 0;\n out[2] = 0;\n out[3] = 1;\n return out;\n};\n\n/**\n * Sets a quat from the given angle and rotation axis,\n * then returns it.\n *\n * @param {quat} out the receiving quaternion\n * @param {vec3} axis the axis around which to rotate\n * @param {Number} rad the angle in radians\n * @returns {quat} out\n **/\nquat.setAxisAngle = function(out, axis, rad) {\n rad = rad * 0.5;\n var s = Math.sin(rad);\n out[0] = s * axis[0];\n out[1] = s * axis[1];\n out[2] = s * axis[2];\n out[3] = Math.cos(rad);\n return out;\n};\n\n/**\n * Adds two quat's\n *\n * @param {quat} out the receiving quaternion\n * @param {quat} a the first operand\n * @param {quat} b the second operand\n * @returns {quat} out\n * @function\n */\nquat.add = vec4.add;\n\n/**\n * Multiplies two quat's\n *\n * @param {quat} out the receiving quaternion\n * @param {quat} a the first operand\n * @param {quat} b the second operand\n * @returns {quat} out\n */\nquat.multiply = function(out, a, b) {\n var ax = a[0], ay = a[1], az = a[2], aw = a[3],\n bx = b[0], by = b[1], bz = b[2], bw = b[3];\n\n out[0] = ax * bw + aw * bx + ay * bz - az * by;\n out[1] = ay * bw + aw * by + az * bx - ax * bz;\n out[2] = az * bw + aw * bz + ax * by - ay * bx;\n out[3] = aw * bw - ax * bx - ay * by - az * bz;\n return out;\n};\n\n/**\n * Alias for {@link quat.multiply}\n * @function\n */\nquat.mul = quat.multiply;\n\n/**\n * Scales a quat by a scalar number\n *\n * @param {quat} out the receiving vector\n * @param {quat} a the vector to scale\n * @param {Number} b amount to scale the vector by\n * @returns {quat} out\n * @function\n */\nquat.scale = vec4.scale;\n\n/**\n * Rotates a quaternion by the given angle about the X axis\n *\n * @param {quat} out quat receiving operation result\n * @param {quat} a quat to rotate\n * @param {number} rad angle (in radians) to rotate\n * @returns {quat} out\n */\nquat.rotateX = function (out, a, rad) {\n rad *= 0.5; \n\n var ax = a[0], ay = a[1], az = a[2], aw = a[3],\n bx = Math.sin(rad), bw = Math.cos(rad);\n\n out[0] = ax * bw + aw * bx;\n out[1] = ay * bw + az * bx;\n out[2] = az * bw - ay * bx;\n out[3] = aw * bw - ax * bx;\n return out;\n};\n\n/**\n * Rotates a quaternion by the given angle about the Y axis\n *\n * @param {quat} out quat receiving operation result\n * @param {quat} a quat to rotate\n * @param {number} rad angle (in radians) to rotate\n * @returns {quat} out\n */\nquat.rotateY = function (out, a, rad) {\n rad *= 0.5; \n\n var ax = a[0], ay = a[1], az = a[2], aw = a[3],\n by = Math.sin(rad), bw = Math.cos(rad);\n\n out[0] = ax * bw - az * by;\n out[1] = ay * bw + aw * by;\n out[2] = az * bw + ax * by;\n out[3] = aw * bw - ay * by;\n return out;\n};\n\n/**\n * Rotates a quaternion by the given angle about the Z axis\n *\n * @param {quat} out quat receiving operation result\n * @param {quat} a quat to rotate\n * @param {number} rad angle (in radians) to rotate\n * @returns {quat} out\n */\nquat.rotateZ = function (out, a, rad) {\n rad *= 0.5; \n\n var ax = a[0], ay = a[1], az = a[2], aw = a[3],\n bz = Math.sin(rad), bw = Math.cos(rad);\n\n out[0] = ax * bw + ay * bz;\n out[1] = ay * bw - ax * bz;\n out[2] = az * bw + aw * bz;\n out[3] = aw * bw - az * bz;\n return out;\n};\n\n/**\n * Calculates the W component of a quat from the X, Y, and Z components.\n * Assumes that quaternion is 1 unit in length.\n * Any existing W component will be ignored.\n *\n * @param {quat} out the receiving quaternion\n * @param {quat} a quat to calculate W component of\n * @returns {quat} out\n */\nquat.calculateW = function (out, a) {\n var x = a[0], y = a[1], z = a[2];\n\n out[0] = x;\n out[1] = y;\n out[2] = z;\n out[3] = Math.sqrt(Math.abs(1.0 - x * x - y * y - z * z));\n return out;\n};\n\n/**\n * Calculates the dot product of two quat's\n *\n * @param {quat} a the first operand\n * @param {quat} b the second operand\n * @returns {Number} dot product of a and b\n * @function\n */\nquat.dot = vec4.dot;\n\n/**\n * Performs a linear interpolation between two quat's\n *\n * @param {quat} out the receiving quaternion\n * @param {quat} a the first operand\n * @param {quat} b the second operand\n * @param {Number} t interpolation amount between the two inputs\n * @returns {quat} out\n * @function\n */\nquat.lerp = vec4.lerp;\n\n/**\n * Performs a spherical linear interpolation between two quat\n *\n * @param {quat} out the receiving quaternion\n * @param {quat} a the first operand\n * @param {quat} b the second operand\n * @param {Number} t interpolation amount between the two inputs\n * @returns {quat} out\n */\nquat.slerp = function (out, a, b, t) {\n // benchmarks:\n // http://jsperf.com/quaternion-slerp-implementations\n\n var ax = a[0], ay = a[1], az = a[2], aw = a[3],\n bx = b[0], by = b[1], bz = b[2], bw = b[3];\n\n var omega, cosom, sinom, scale0, scale1;\n\n // calc cosine\n cosom = ax * bx + ay * by + az * bz + aw * bw;\n // adjust signs (if necessary)\n if ( cosom < 0.0 ) {\n cosom = -cosom;\n bx = - bx;\n by = - by;\n bz = - bz;\n bw = - bw;\n }\n // calculate coefficients\n if ( (1.0 - cosom) > 0.000001 ) {\n // standard case (slerp)\n omega = Math.acos(cosom);\n sinom = Math.sin(omega);\n scale0 = Math.sin((1.0 - t) * omega) / sinom;\n scale1 = Math.sin(t * omega) / sinom;\n } else { \n // \"from\" and \"to\" quaternions are very close \n // ... so we can do a linear interpolation\n scale0 = 1.0 - t;\n scale1 = t;\n }\n // calculate final values\n out[0] = scale0 * ax + scale1 * bx;\n out[1] = scale0 * ay + scale1 * by;\n out[2] = scale0 * az + scale1 * bz;\n out[3] = scale0 * aw + scale1 * bw;\n \n return out;\n};\n\n/**\n * Performs a spherical linear interpolation with two control points\n *\n * @param {quat} out the receiving quaternion\n * @param {quat} a the first operand\n * @param {quat} b the second operand\n * @param {quat} c the third operand\n * @param {quat} d the fourth operand\n * @param {Number} t interpolation amount\n * @returns {quat} out\n */\nquat.sqlerp = (function () {\n var temp1 = quat.create();\n var temp2 = quat.create();\n \n return function (out, a, b, c, d, t) {\n quat.slerp(temp1, a, d, t);\n quat.slerp(temp2, b, c, t);\n quat.slerp(out, temp1, temp2, 2 * t * (1 - t));\n \n return out;\n };\n}());\n\n/**\n * Calculates the inverse of a quat\n *\n * @param {quat} out the receiving quaternion\n * @param {quat} a quat to calculate inverse of\n * @returns {quat} out\n */\nquat.invert = function(out, a) {\n var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3],\n dot = a0*a0 + a1*a1 + a2*a2 + a3*a3,\n invDot = dot ? 1.0/dot : 0;\n \n // TODO: Would be faster to return [0,0,0,0] immediately if dot == 0\n\n out[0] = -a0*invDot;\n out[1] = -a1*invDot;\n out[2] = -a2*invDot;\n out[3] = a3*invDot;\n return out;\n};\n\n/**\n * Calculates the conjugate of a quat\n * If the quaternion is normalized, this function is faster than quat.inverse and produces the same result.\n *\n * @param {quat} out the receiving quaternion\n * @param {quat} a quat to calculate conjugate of\n * @returns {quat} out\n */\nquat.conjugate = function (out, a) {\n out[0] = -a[0];\n out[1] = -a[1];\n out[2] = -a[2];\n out[3] = a[3];\n return out;\n};\n\n/**\n * Calculates the length of a quat\n *\n * @param {quat} a vector to calculate length of\n * @returns {Number} length of a\n * @function\n */\nquat.length = vec4.length;\n\n/**\n * Alias for {@link quat.length}\n * @function\n */\nquat.len = quat.length;\n\n/**\n * Calculates the squared length of a quat\n *\n * @param {quat} a vector to calculate squared length of\n * @returns {Number} squared length of a\n * @function\n */\nquat.squaredLength = vec4.squaredLength;\n\n/**\n * Alias for {@link quat.squaredLength}\n * @function\n */\nquat.sqrLen = quat.squaredLength;\n\n/**\n * Normalize a quat\n *\n * @param {quat} out the receiving quaternion\n * @param {quat} a quaternion to normalize\n * @returns {quat} out\n * @function\n */\nquat.normalize = vec4.normalize;\n\n/**\n * Creates a quaternion from the given 3x3 rotation matrix.\n *\n * NOTE: The resultant quaternion is not normalized, so you should be sure\n * to renormalize the quaternion yourself where necessary.\n *\n * @param {quat} out the receiving quaternion\n * @param {mat3} m rotation matrix\n * @returns {quat} out\n * @function\n */\nquat.fromMat3 = function(out, m) {\n // Algorithm in Ken Shoemake's article in 1987 SIGGRAPH course notes\n // article \"Quaternion Calculus and Fast Animation\".\n var fTrace = m[0] + m[4] + m[8];\n var fRoot;\n\n if ( fTrace > 0.0 ) {\n // |w| > 1/2, may as well choose w > 1/2\n fRoot = Math.sqrt(fTrace + 1.0); // 2w\n out[3] = 0.5 * fRoot;\n fRoot = 0.5/fRoot; // 1/(4w)\n out[0] = (m[5]-m[7])*fRoot;\n out[1] = (m[6]-m[2])*fRoot;\n out[2] = (m[1]-m[3])*fRoot;\n } else {\n // |w| <= 1/2\n var i = 0;\n if ( m[4] > m[0] )\n i = 1;\n if ( m[8] > m[i*3+i] )\n i = 2;\n var j = (i+1)%3;\n var k = (i+2)%3;\n \n fRoot = Math.sqrt(m[i*3+i]-m[j*3+j]-m[k*3+k] + 1.0);\n out[i] = 0.5 * fRoot;\n fRoot = 0.5 / fRoot;\n out[3] = (m[j*3+k] - m[k*3+j]) * fRoot;\n out[j] = (m[j*3+i] + m[i*3+j]) * fRoot;\n out[k] = (m[k*3+i] + m[i*3+k]) * fRoot;\n }\n \n return out;\n};\n\n/**\n * Returns a string representation of a quatenion\n *\n * @param {quat} vec vector to represent as a string\n * @returns {String} string representation of the vector\n */\nquat.str = function (a) {\n return 'quat(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' + a[3] + ')';\n};\n\nmodule.exports = quat;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/gl-matrix/src/gl-matrix/quat.js\n ** module id = 15\n ** module chunks = 0\n **/","/* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV.\n\nPermission is hereby granted, free of charge, to any person obtaining a copy\nof this software and associated documentation files (the \"Software\"), to deal\nin the Software without restriction, including without limitation the rights\nto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\ncopies of the Software, and to permit persons to whom the Software is\nfurnished to do so, subject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in\nall copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\nFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\nAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\nLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\nOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\nTHE SOFTWARE. */\n\nvar glMatrix = require(\"./common.js\");\n\n/**\n * @class 3 Dimensional Vector\n * @name vec3\n */\nvar vec3 = {};\n\n/**\n * Creates a new, empty vec3\n *\n * @returns {vec3} a new 3D vector\n */\nvec3.create = function() {\n var out = new glMatrix.ARRAY_TYPE(3);\n out[0] = 0;\n out[1] = 0;\n out[2] = 0;\n return out;\n};\n\n/**\n * Creates a new vec3 initialized with values from an existing vector\n *\n * @param {vec3} a vector to clone\n * @returns {vec3} a new 3D vector\n */\nvec3.clone = function(a) {\n var out = new glMatrix.ARRAY_TYPE(3);\n out[0] = a[0];\n out[1] = a[1];\n out[2] = a[2];\n return out;\n};\n\n/**\n * Creates a new vec3 initialized with the given values\n *\n * @param {Number} x X component\n * @param {Number} y Y component\n * @param {Number} z Z component\n * @returns {vec3} a new 3D vector\n */\nvec3.fromValues = function(x, y, z) {\n var out = new glMatrix.ARRAY_TYPE(3);\n out[0] = x;\n out[1] = y;\n out[2] = z;\n return out;\n};\n\n/**\n * Copy the values from one vec3 to another\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the source vector\n * @returns {vec3} out\n */\nvec3.copy = function(out, a) {\n out[0] = a[0];\n out[1] = a[1];\n out[2] = a[2];\n return out;\n};\n\n/**\n * Set the components of a vec3 to the given values\n *\n * @param {vec3} out the receiving vector\n * @param {Number} x X component\n * @param {Number} y Y component\n * @param {Number} z Z component\n * @returns {vec3} out\n */\nvec3.set = function(out, x, y, z) {\n out[0] = x;\n out[1] = y;\n out[2] = z;\n return out;\n};\n\n/**\n * Adds two vec3's\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @returns {vec3} out\n */\nvec3.add = function(out, a, b) {\n out[0] = a[0] + b[0];\n out[1] = a[1] + b[1];\n out[2] = a[2] + b[2];\n return out;\n};\n\n/**\n * Subtracts vector b from vector a\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @returns {vec3} out\n */\nvec3.subtract = function(out, a, b) {\n out[0] = a[0] - b[0];\n out[1] = a[1] - b[1];\n out[2] = a[2] - b[2];\n return out;\n};\n\n/**\n * Alias for {@link vec3.subtract}\n * @function\n */\nvec3.sub = vec3.subtract;\n\n/**\n * Multiplies two vec3's\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @returns {vec3} out\n */\nvec3.multiply = function(out, a, b) {\n out[0] = a[0] * b[0];\n out[1] = a[1] * b[1];\n out[2] = a[2] * b[2];\n return out;\n};\n\n/**\n * Alias for {@link vec3.multiply}\n * @function\n */\nvec3.mul = vec3.multiply;\n\n/**\n * Divides two vec3's\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @returns {vec3} out\n */\nvec3.divide = function(out, a, b) {\n out[0] = a[0] / b[0];\n out[1] = a[1] / b[1];\n out[2] = a[2] / b[2];\n return out;\n};\n\n/**\n * Alias for {@link vec3.divide}\n * @function\n */\nvec3.div = vec3.divide;\n\n/**\n * Returns the minimum of two vec3's\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @returns {vec3} out\n */\nvec3.min = function(out, a, b) {\n out[0] = Math.min(a[0], b[0]);\n out[1] = Math.min(a[1], b[1]);\n out[2] = Math.min(a[2], b[2]);\n return out;\n};\n\n/**\n * Returns the maximum of two vec3's\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @returns {vec3} out\n */\nvec3.max = function(out, a, b) {\n out[0] = Math.max(a[0], b[0]);\n out[1] = Math.max(a[1], b[1]);\n out[2] = Math.max(a[2], b[2]);\n return out;\n};\n\n/**\n * Scales a vec3 by a scalar number\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the vector to scale\n * @param {Number} b amount to scale the vector by\n * @returns {vec3} out\n */\nvec3.scale = function(out, a, b) {\n out[0] = a[0] * b;\n out[1] = a[1] * b;\n out[2] = a[2] * b;\n return out;\n};\n\n/**\n * Adds two vec3's after scaling the second operand by a scalar value\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @param {Number} scale the amount to scale b by before adding\n * @returns {vec3} out\n */\nvec3.scaleAndAdd = function(out, a, b, scale) {\n out[0] = a[0] + (b[0] * scale);\n out[1] = a[1] + (b[1] * scale);\n out[2] = a[2] + (b[2] * scale);\n return out;\n};\n\n/**\n * Calculates the euclidian distance between two vec3's\n *\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @returns {Number} distance between a and b\n */\nvec3.distance = function(a, b) {\n var x = b[0] - a[0],\n y = b[1] - a[1],\n z = b[2] - a[2];\n return Math.sqrt(x*x + y*y + z*z);\n};\n\n/**\n * Alias for {@link vec3.distance}\n * @function\n */\nvec3.dist = vec3.distance;\n\n/**\n * Calculates the squared euclidian distance between two vec3's\n *\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @returns {Number} squared distance between a and b\n */\nvec3.squaredDistance = function(a, b) {\n var x = b[0] - a[0],\n y = b[1] - a[1],\n z = b[2] - a[2];\n return x*x + y*y + z*z;\n};\n\n/**\n * Alias for {@link vec3.squaredDistance}\n * @function\n */\nvec3.sqrDist = vec3.squaredDistance;\n\n/**\n * Calculates the length of a vec3\n *\n * @param {vec3} a vector to calculate length of\n * @returns {Number} length of a\n */\nvec3.length = function (a) {\n var x = a[0],\n y = a[1],\n z = a[2];\n return Math.sqrt(x*x + y*y + z*z);\n};\n\n/**\n * Alias for {@link vec3.length}\n * @function\n */\nvec3.len = vec3.length;\n\n/**\n * Calculates the squared length of a vec3\n *\n * @param {vec3} a vector to calculate squared length of\n * @returns {Number} squared length of a\n */\nvec3.squaredLength = function (a) {\n var x = a[0],\n y = a[1],\n z = a[2];\n return x*x + y*y + z*z;\n};\n\n/**\n * Alias for {@link vec3.squaredLength}\n * @function\n */\nvec3.sqrLen = vec3.squaredLength;\n\n/**\n * Negates the components of a vec3\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a vector to negate\n * @returns {vec3} out\n */\nvec3.negate = function(out, a) {\n out[0] = -a[0];\n out[1] = -a[1];\n out[2] = -a[2];\n return out;\n};\n\n/**\n * Returns the inverse of the components of a vec3\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a vector to invert\n * @returns {vec3} out\n */\nvec3.inverse = function(out, a) {\n out[0] = 1.0 / a[0];\n out[1] = 1.0 / a[1];\n out[2] = 1.0 / a[2];\n return out;\n};\n\n/**\n * Normalize a vec3\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a vector to normalize\n * @returns {vec3} out\n */\nvec3.normalize = function(out, a) {\n var x = a[0],\n y = a[1],\n z = a[2];\n var len = x*x + y*y + z*z;\n if (len > 0) {\n //TODO: evaluate use of glm_invsqrt here?\n len = 1 / Math.sqrt(len);\n out[0] = a[0] * len;\n out[1] = a[1] * len;\n out[2] = a[2] * len;\n }\n return out;\n};\n\n/**\n * Calculates the dot product of two vec3's\n *\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @returns {Number} dot product of a and b\n */\nvec3.dot = function (a, b) {\n return a[0] * b[0] + a[1] * b[1] + a[2] * b[2];\n};\n\n/**\n * Computes the cross product of two vec3's\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @returns {vec3} out\n */\nvec3.cross = function(out, a, b) {\n var ax = a[0], ay = a[1], az = a[2],\n bx = b[0], by = b[1], bz = b[2];\n\n out[0] = ay * bz - az * by;\n out[1] = az * bx - ax * bz;\n out[2] = ax * by - ay * bx;\n return out;\n};\n\n/**\n * Performs a linear interpolation between two vec3's\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @param {Number} t interpolation amount between the two inputs\n * @returns {vec3} out\n */\nvec3.lerp = function (out, a, b, t) {\n var ax = a[0],\n ay = a[1],\n az = a[2];\n out[0] = ax + t * (b[0] - ax);\n out[1] = ay + t * (b[1] - ay);\n out[2] = az + t * (b[2] - az);\n return out;\n};\n\n/**\n * Performs a hermite interpolation with two control points\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @param {vec3} c the third operand\n * @param {vec3} d the fourth operand\n * @param {Number} t interpolation amount between the two inputs\n * @returns {vec3} out\n */\nvec3.hermite = function (out, a, b, c, d, t) {\n var factorTimes2 = t * t,\n factor1 = factorTimes2 * (2 * t - 3) + 1,\n factor2 = factorTimes2 * (t - 2) + t,\n factor3 = factorTimes2 * (t - 1),\n factor4 = factorTimes2 * (3 - 2 * t);\n \n out[0] = a[0] * factor1 + b[0] * factor2 + c[0] * factor3 + d[0] * factor4;\n out[1] = a[1] * factor1 + b[1] * factor2 + c[1] * factor3 + d[1] * factor4;\n out[2] = a[2] * factor1 + b[2] * factor2 + c[2] * factor3 + d[2] * factor4;\n \n return out;\n};\n\n/**\n * Performs a bezier interpolation with two control points\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @param {vec3} c the third operand\n * @param {vec3} d the fourth operand\n * @param {Number} t interpolation amount between the two inputs\n * @returns {vec3} out\n */\nvec3.bezier = function (out, a, b, c, d, t) {\n var inverseFactor = 1 - t,\n inverseFactorTimesTwo = inverseFactor * inverseFactor,\n factorTimes2 = t * t,\n factor1 = inverseFactorTimesTwo * inverseFactor,\n factor2 = 3 * t * inverseFactorTimesTwo,\n factor3 = 3 * factorTimes2 * inverseFactor,\n factor4 = factorTimes2 * t;\n \n out[0] = a[0] * factor1 + b[0] * factor2 + c[0] * factor3 + d[0] * factor4;\n out[1] = a[1] * factor1 + b[1] * factor2 + c[1] * factor3 + d[1] * factor4;\n out[2] = a[2] * factor1 + b[2] * factor2 + c[2] * factor3 + d[2] * factor4;\n \n return out;\n};\n\n/**\n * Generates a random vector with the given scale\n *\n * @param {vec3} out the receiving vector\n * @param {Number} [scale] Length of the resulting vector. If ommitted, a unit vector will be returned\n * @returns {vec3} out\n */\nvec3.random = function (out, scale) {\n scale = scale || 1.0;\n\n var r = glMatrix.RANDOM() * 2.0 * Math.PI;\n var z = (glMatrix.RANDOM() * 2.0) - 1.0;\n var zScale = Math.sqrt(1.0-z*z) * scale;\n\n out[0] = Math.cos(r) * zScale;\n out[1] = Math.sin(r) * zScale;\n out[2] = z * scale;\n return out;\n};\n\n/**\n * Transforms the vec3 with a mat4.\n * 4th vector component is implicitly '1'\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the vector to transform\n * @param {mat4} m matrix to transform with\n * @returns {vec3} out\n */\nvec3.transformMat4 = function(out, a, m) {\n var x = a[0], y = a[1], z = a[2],\n w = m[3] * x + m[7] * y + m[11] * z + m[15];\n w = w || 1.0;\n out[0] = (m[0] * x + m[4] * y + m[8] * z + m[12]) / w;\n out[1] = (m[1] * x + m[5] * y + m[9] * z + m[13]) / w;\n out[2] = (m[2] * x + m[6] * y + m[10] * z + m[14]) / w;\n return out;\n};\n\n/**\n * Transforms the vec3 with a mat3.\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the vector to transform\n * @param {mat4} m the 3x3 matrix to transform with\n * @returns {vec3} out\n */\nvec3.transformMat3 = function(out, a, m) {\n var x = a[0], y = a[1], z = a[2];\n out[0] = x * m[0] + y * m[3] + z * m[6];\n out[1] = x * m[1] + y * m[4] + z * m[7];\n out[2] = x * m[2] + y * m[5] + z * m[8];\n return out;\n};\n\n/**\n * Transforms the vec3 with a quat\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the vector to transform\n * @param {quat} q quaternion to transform with\n * @returns {vec3} out\n */\nvec3.transformQuat = function(out, a, q) {\n // benchmarks: http://jsperf.com/quaternion-transform-vec3-implementations\n\n var x = a[0], y = a[1], z = a[2],\n qx = q[0], qy = q[1], qz = q[2], qw = q[3],\n\n // calculate quat * vec\n ix = qw * x + qy * z - qz * y,\n iy = qw * y + qz * x - qx * z,\n iz = qw * z + qx * y - qy * x,\n iw = -qx * x - qy * y - qz * z;\n\n // calculate result * inverse quat\n out[0] = ix * qw + iw * -qx + iy * -qz - iz * -qy;\n out[1] = iy * qw + iw * -qy + iz * -qx - ix * -qz;\n out[2] = iz * qw + iw * -qz + ix * -qy - iy * -qx;\n return out;\n};\n\n/**\n * Rotate a 3D vector around the x-axis\n * @param {vec3} out The receiving vec3\n * @param {vec3} a The vec3 point to rotate\n * @param {vec3} b The origin of the rotation\n * @param {Number} c The angle of rotation\n * @returns {vec3} out\n */\nvec3.rotateX = function(out, a, b, c){\n var p = [], r=[];\n\t //Translate point to the origin\n\t p[0] = a[0] - b[0];\n\t p[1] = a[1] - b[1];\n \tp[2] = a[2] - b[2];\n\n\t //perform rotation\n\t r[0] = p[0];\n\t r[1] = p[1]*Math.cos(c) - p[2]*Math.sin(c);\n\t r[2] = p[1]*Math.sin(c) + p[2]*Math.cos(c);\n\n\t //translate to correct position\n\t out[0] = r[0] + b[0];\n\t out[1] = r[1] + b[1];\n\t out[2] = r[2] + b[2];\n\n \treturn out;\n};\n\n/**\n * Rotate a 3D vector around the y-axis\n * @param {vec3} out The receiving vec3\n * @param {vec3} a The vec3 point to rotate\n * @param {vec3} b The origin of the rotation\n * @param {Number} c The angle of rotation\n * @returns {vec3} out\n */\nvec3.rotateY = function(out, a, b, c){\n \tvar p = [], r=[];\n \t//Translate point to the origin\n \tp[0] = a[0] - b[0];\n \tp[1] = a[1] - b[1];\n \tp[2] = a[2] - b[2];\n \n \t//perform rotation\n \tr[0] = p[2]*Math.sin(c) + p[0]*Math.cos(c);\n \tr[1] = p[1];\n \tr[2] = p[2]*Math.cos(c) - p[0]*Math.sin(c);\n \n \t//translate to correct position\n \tout[0] = r[0] + b[0];\n \tout[1] = r[1] + b[1];\n \tout[2] = r[2] + b[2];\n \n \treturn out;\n};\n\n/**\n * Rotate a 3D vector around the z-axis\n * @param {vec3} out The receiving vec3\n * @param {vec3} a The vec3 point to rotate\n * @param {vec3} b The origin of the rotation\n * @param {Number} c The angle of rotation\n * @returns {vec3} out\n */\nvec3.rotateZ = function(out, a, b, c){\n \tvar p = [], r=[];\n \t//Translate point to the origin\n \tp[0] = a[0] - b[0];\n \tp[1] = a[1] - b[1];\n \tp[2] = a[2] - b[2];\n \n \t//perform rotation\n \tr[0] = p[0]*Math.cos(c) - p[1]*Math.sin(c);\n \tr[1] = p[0]*Math.sin(c) + p[1]*Math.cos(c);\n \tr[2] = p[2];\n \n \t//translate to correct position\n \tout[0] = r[0] + b[0];\n \tout[1] = r[1] + b[1];\n \tout[2] = r[2] + b[2];\n \n \treturn out;\n};\n\n/**\n * Perform some operation over an array of vec3s.\n *\n * @param {Array} a the array of vectors to iterate over\n * @param {Number} stride Number of elements between the start of each vec3. If 0 assumes tightly packed\n * @param {Number} offset Number of elements to skip at the beginning of the array\n * @param {Number} count Number of vec3s to iterate over. If 0 iterates over entire array\n * @param {Function} fn Function to call for each vector in the array\n * @param {Object} [arg] additional argument to pass to fn\n * @returns {Array} a\n * @function\n */\nvec3.forEach = (function() {\n var vec = vec3.create();\n\n return function(a, stride, offset, count, fn, arg) {\n var i, l;\n if(!stride) {\n stride = 3;\n }\n\n if(!offset) {\n offset = 0;\n }\n \n if(count) {\n l = Math.min((count * stride) + offset, a.length);\n } else {\n l = a.length;\n }\n\n for(i = offset; i < l; i += stride) {\n vec[0] = a[i]; vec[1] = a[i+1]; vec[2] = a[i+2];\n fn(vec, vec, arg);\n a[i] = vec[0]; a[i+1] = vec[1]; a[i+2] = vec[2];\n }\n \n return a;\n };\n})();\n\n/**\n * Get the angle between two 3D vectors\n * @param {vec3} a The first operand\n * @param {vec3} b The second operand\n * @returns {Number} The angle in radians\n */\nvec3.angle = function(a, b) {\n \n var tempA = vec3.fromValues(a[0], a[1], a[2]);\n var tempB = vec3.fromValues(b[0], b[1], b[2]);\n \n vec3.normalize(tempA, tempA);\n vec3.normalize(tempB, tempB);\n \n var cosine = vec3.dot(tempA, tempB);\n\n if(cosine > 1.0){\n return 0;\n } else {\n return Math.acos(cosine);\n } \n};\n\n/**\n * Returns a string representation of a vector\n *\n * @param {vec3} vec vector to represent as a string\n * @returns {String} string representation of the vector\n */\nvec3.str = function (a) {\n return 'vec3(' + a[0] + ', ' + a[1] + ', ' + a[2] + ')';\n};\n\nmodule.exports = vec3;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/gl-matrix/src/gl-matrix/vec3.js\n ** module id = 16\n ** module chunks = 0\n **/","/* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV.\n\nPermission is hereby granted, free of charge, to any person obtaining a copy\nof this software and associated documentation files (the \"Software\"), to deal\nin the Software without restriction, including without limitation the rights\nto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\ncopies of the Software, and to permit persons to whom the Software is\nfurnished to do so, subject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in\nall copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\nFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\nAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\nLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\nOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\nTHE SOFTWARE. */\n\nvar glMatrix = require(\"./common.js\");\n\n/**\n * @class 4 Dimensional Vector\n * @name vec4\n */\nvar vec4 = {};\n\n/**\n * Creates a new, empty vec4\n *\n * @returns {vec4} a new 4D vector\n */\nvec4.create = function() {\n var out = new glMatrix.ARRAY_TYPE(4);\n out[0] = 0;\n out[1] = 0;\n out[2] = 0;\n out[3] = 0;\n return out;\n};\n\n/**\n * Creates a new vec4 initialized with values from an existing vector\n *\n * @param {vec4} a vector to clone\n * @returns {vec4} a new 4D vector\n */\nvec4.clone = function(a) {\n var out = new glMatrix.ARRAY_TYPE(4);\n out[0] = a[0];\n out[1] = a[1];\n out[2] = a[2];\n out[3] = a[3];\n return out;\n};\n\n/**\n * Creates a new vec4 initialized with the given values\n *\n * @param {Number} x X component\n * @param {Number} y Y component\n * @param {Number} z Z component\n * @param {Number} w W component\n * @returns {vec4} a new 4D vector\n */\nvec4.fromValues = function(x, y, z, w) {\n var out = new glMatrix.ARRAY_TYPE(4);\n out[0] = x;\n out[1] = y;\n out[2] = z;\n out[3] = w;\n return out;\n};\n\n/**\n * Copy the values from one vec4 to another\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a the source vector\n * @returns {vec4} out\n */\nvec4.copy = function(out, a) {\n out[0] = a[0];\n out[1] = a[1];\n out[2] = a[2];\n out[3] = a[3];\n return out;\n};\n\n/**\n * Set the components of a vec4 to the given values\n *\n * @param {vec4} out the receiving vector\n * @param {Number} x X component\n * @param {Number} y Y component\n * @param {Number} z Z component\n * @param {Number} w W component\n * @returns {vec4} out\n */\nvec4.set = function(out, x, y, z, w) {\n out[0] = x;\n out[1] = y;\n out[2] = z;\n out[3] = w;\n return out;\n};\n\n/**\n * Adds two vec4's\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a the first operand\n * @param {vec4} b the second operand\n * @returns {vec4} out\n */\nvec4.add = function(out, a, b) {\n out[0] = a[0] + b[0];\n out[1] = a[1] + b[1];\n out[2] = a[2] + b[2];\n out[3] = a[3] + b[3];\n return out;\n};\n\n/**\n * Subtracts vector b from vector a\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a the first operand\n * @param {vec4} b the second operand\n * @returns {vec4} out\n */\nvec4.subtract = function(out, a, b) {\n out[0] = a[0] - b[0];\n out[1] = a[1] - b[1];\n out[2] = a[2] - b[2];\n out[3] = a[3] - b[3];\n return out;\n};\n\n/**\n * Alias for {@link vec4.subtract}\n * @function\n */\nvec4.sub = vec4.subtract;\n\n/**\n * Multiplies two vec4's\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a the first operand\n * @param {vec4} b the second operand\n * @returns {vec4} out\n */\nvec4.multiply = function(out, a, b) {\n out[0] = a[0] * b[0];\n out[1] = a[1] * b[1];\n out[2] = a[2] * b[2];\n out[3] = a[3] * b[3];\n return out;\n};\n\n/**\n * Alias for {@link vec4.multiply}\n * @function\n */\nvec4.mul = vec4.multiply;\n\n/**\n * Divides two vec4's\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a the first operand\n * @param {vec4} b the second operand\n * @returns {vec4} out\n */\nvec4.divide = function(out, a, b) {\n out[0] = a[0] / b[0];\n out[1] = a[1] / b[1];\n out[2] = a[2] / b[2];\n out[3] = a[3] / b[3];\n return out;\n};\n\n/**\n * Alias for {@link vec4.divide}\n * @function\n */\nvec4.div = vec4.divide;\n\n/**\n * Returns the minimum of two vec4's\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a the first operand\n * @param {vec4} b the second operand\n * @returns {vec4} out\n */\nvec4.min = function(out, a, b) {\n out[0] = Math.min(a[0], b[0]);\n out[1] = Math.min(a[1], b[1]);\n out[2] = Math.min(a[2], b[2]);\n out[3] = Math.min(a[3], b[3]);\n return out;\n};\n\n/**\n * Returns the maximum of two vec4's\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a the first operand\n * @param {vec4} b the second operand\n * @returns {vec4} out\n */\nvec4.max = function(out, a, b) {\n out[0] = Math.max(a[0], b[0]);\n out[1] = Math.max(a[1], b[1]);\n out[2] = Math.max(a[2], b[2]);\n out[3] = Math.max(a[3], b[3]);\n return out;\n};\n\n/**\n * Scales a vec4 by a scalar number\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a the vector to scale\n * @param {Number} b amount to scale the vector by\n * @returns {vec4} out\n */\nvec4.scale = function(out, a, b) {\n out[0] = a[0] * b;\n out[1] = a[1] * b;\n out[2] = a[2] * b;\n out[3] = a[3] * b;\n return out;\n};\n\n/**\n * Adds two vec4's after scaling the second operand by a scalar value\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a the first operand\n * @param {vec4} b the second operand\n * @param {Number} scale the amount to scale b by before adding\n * @returns {vec4} out\n */\nvec4.scaleAndAdd = function(out, a, b, scale) {\n out[0] = a[0] + (b[0] * scale);\n out[1] = a[1] + (b[1] * scale);\n out[2] = a[2] + (b[2] * scale);\n out[3] = a[3] + (b[3] * scale);\n return out;\n};\n\n/**\n * Calculates the euclidian distance between two vec4's\n *\n * @param {vec4} a the first operand\n * @param {vec4} b the second operand\n * @returns {Number} distance between a and b\n */\nvec4.distance = function(a, b) {\n var x = b[0] - a[0],\n y = b[1] - a[1],\n z = b[2] - a[2],\n w = b[3] - a[3];\n return Math.sqrt(x*x + y*y + z*z + w*w);\n};\n\n/**\n * Alias for {@link vec4.distance}\n * @function\n */\nvec4.dist = vec4.distance;\n\n/**\n * Calculates the squared euclidian distance between two vec4's\n *\n * @param {vec4} a the first operand\n * @param {vec4} b the second operand\n * @returns {Number} squared distance between a and b\n */\nvec4.squaredDistance = function(a, b) {\n var x = b[0] - a[0],\n y = b[1] - a[1],\n z = b[2] - a[2],\n w = b[3] - a[3];\n return x*x + y*y + z*z + w*w;\n};\n\n/**\n * Alias for {@link vec4.squaredDistance}\n * @function\n */\nvec4.sqrDist = vec4.squaredDistance;\n\n/**\n * Calculates the length of a vec4\n *\n * @param {vec4} a vector to calculate length of\n * @returns {Number} length of a\n */\nvec4.length = function (a) {\n var x = a[0],\n y = a[1],\n z = a[2],\n w = a[3];\n return Math.sqrt(x*x + y*y + z*z + w*w);\n};\n\n/**\n * Alias for {@link vec4.length}\n * @function\n */\nvec4.len = vec4.length;\n\n/**\n * Calculates the squared length of a vec4\n *\n * @param {vec4} a vector to calculate squared length of\n * @returns {Number} squared length of a\n */\nvec4.squaredLength = function (a) {\n var x = a[0],\n y = a[1],\n z = a[2],\n w = a[3];\n return x*x + y*y + z*z + w*w;\n};\n\n/**\n * Alias for {@link vec4.squaredLength}\n * @function\n */\nvec4.sqrLen = vec4.squaredLength;\n\n/**\n * Negates the components of a vec4\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a vector to negate\n * @returns {vec4} out\n */\nvec4.negate = function(out, a) {\n out[0] = -a[0];\n out[1] = -a[1];\n out[2] = -a[2];\n out[3] = -a[3];\n return out;\n};\n\n/**\n * Returns the inverse of the components of a vec4\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a vector to invert\n * @returns {vec4} out\n */\nvec4.inverse = function(out, a) {\n out[0] = 1.0 / a[0];\n out[1] = 1.0 / a[1];\n out[2] = 1.0 / a[2];\n out[3] = 1.0 / a[3];\n return out;\n};\n\n/**\n * Normalize a vec4\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a vector to normalize\n * @returns {vec4} out\n */\nvec4.normalize = function(out, a) {\n var x = a[0],\n y = a[1],\n z = a[2],\n w = a[3];\n var len = x*x + y*y + z*z + w*w;\n if (len > 0) {\n len = 1 / Math.sqrt(len);\n out[0] = x * len;\n out[1] = y * len;\n out[2] = z * len;\n out[3] = w * len;\n }\n return out;\n};\n\n/**\n * Calculates the dot product of two vec4's\n *\n * @param {vec4} a the first operand\n * @param {vec4} b the second operand\n * @returns {Number} dot product of a and b\n */\nvec4.dot = function (a, b) {\n return a[0] * b[0] + a[1] * b[1] + a[2] * b[2] + a[3] * b[3];\n};\n\n/**\n * Performs a linear interpolation between two vec4's\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a the first operand\n * @param {vec4} b the second operand\n * @param {Number} t interpolation amount between the two inputs\n * @returns {vec4} out\n */\nvec4.lerp = function (out, a, b, t) {\n var ax = a[0],\n ay = a[1],\n az = a[2],\n aw = a[3];\n out[0] = ax + t * (b[0] - ax);\n out[1] = ay + t * (b[1] - ay);\n out[2] = az + t * (b[2] - az);\n out[3] = aw + t * (b[3] - aw);\n return out;\n};\n\n/**\n * Generates a random vector with the given scale\n *\n * @param {vec4} out the receiving vector\n * @param {Number} [scale] Length of the resulting vector. If ommitted, a unit vector will be returned\n * @returns {vec4} out\n */\nvec4.random = function (out, scale) {\n scale = scale || 1.0;\n\n //TODO: This is a pretty awful way of doing this. Find something better.\n out[0] = glMatrix.RANDOM();\n out[1] = glMatrix.RANDOM();\n out[2] = glMatrix.RANDOM();\n out[3] = glMatrix.RANDOM();\n vec4.normalize(out, out);\n vec4.scale(out, out, scale);\n return out;\n};\n\n/**\n * Transforms the vec4 with a mat4.\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a the vector to transform\n * @param {mat4} m matrix to transform with\n * @returns {vec4} out\n */\nvec4.transformMat4 = function(out, a, m) {\n var x = a[0], y = a[1], z = a[2], w = a[3];\n out[0] = m[0] * x + m[4] * y + m[8] * z + m[12] * w;\n out[1] = m[1] * x + m[5] * y + m[9] * z + m[13] * w;\n out[2] = m[2] * x + m[6] * y + m[10] * z + m[14] * w;\n out[3] = m[3] * x + m[7] * y + m[11] * z + m[15] * w;\n return out;\n};\n\n/**\n * Transforms the vec4 with a quat\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a the vector to transform\n * @param {quat} q quaternion to transform with\n * @returns {vec4} out\n */\nvec4.transformQuat = function(out, a, q) {\n var x = a[0], y = a[1], z = a[2],\n qx = q[0], qy = q[1], qz = q[2], qw = q[3],\n\n // calculate quat * vec\n ix = qw * x + qy * z - qz * y,\n iy = qw * y + qz * x - qx * z,\n iz = qw * z + qx * y - qy * x,\n iw = -qx * x - qy * y - qz * z;\n\n // calculate result * inverse quat\n out[0] = ix * qw + iw * -qx + iy * -qz - iz * -qy;\n out[1] = iy * qw + iw * -qy + iz * -qx - ix * -qz;\n out[2] = iz * qw + iw * -qz + ix * -qy - iy * -qx;\n out[3] = a[3];\n return out;\n};\n\n/**\n * Perform some operation over an array of vec4s.\n *\n * @param {Array} a the array of vectors to iterate over\n * @param {Number} stride Number of elements between the start of each vec4. If 0 assumes tightly packed\n * @param {Number} offset Number of elements to skip at the beginning of the array\n * @param {Number} count Number of vec4s to iterate over. If 0 iterates over entire array\n * @param {Function} fn Function to call for each vector in the array\n * @param {Object} [arg] additional argument to pass to fn\n * @returns {Array} a\n * @function\n */\nvec4.forEach = (function() {\n var vec = vec4.create();\n\n return function(a, stride, offset, count, fn, arg) {\n var i, l;\n if(!stride) {\n stride = 4;\n }\n\n if(!offset) {\n offset = 0;\n }\n \n if(count) {\n l = Math.min((count * stride) + offset, a.length);\n } else {\n l = a.length;\n }\n\n for(i = offset; i < l; i += stride) {\n vec[0] = a[i]; vec[1] = a[i+1]; vec[2] = a[i+2]; vec[3] = a[i+3];\n fn(vec, vec, arg);\n a[i] = vec[0]; a[i+1] = vec[1]; a[i+2] = vec[2]; a[i+3] = vec[3];\n }\n \n return a;\n };\n})();\n\n/**\n * Returns a string representation of a vector\n *\n * @param {vec4} vec vector to represent as a string\n * @returns {String} string representation of the vector\n */\nvec4.str = function (a) {\n return 'vec4(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' + a[3] + ')';\n};\n\nmodule.exports = vec4;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/gl-matrix/src/gl-matrix/vec4.js\n ** module id = 17\n ** module chunks = 0\n **/","/* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV.\n\nPermission is hereby granted, free of charge, to any person obtaining a copy\nof this software and associated documentation files (the \"Software\"), to deal\nin the Software without restriction, including without limitation the rights\nto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\ncopies of the Software, and to permit persons to whom the Software is\nfurnished to do so, subject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in\nall copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\nFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\nAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\nLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\nOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\nTHE SOFTWARE. */\n\nvar glMatrix = require(\"./common.js\");\n\n/**\n * @class 2 Dimensional Vector\n * @name vec2\n */\nvar vec2 = {};\n\n/**\n * Creates a new, empty vec2\n *\n * @returns {vec2} a new 2D vector\n */\nvec2.create = function() {\n var out = new glMatrix.ARRAY_TYPE(2);\n out[0] = 0;\n out[1] = 0;\n return out;\n};\n\n/**\n * Creates a new vec2 initialized with values from an existing vector\n *\n * @param {vec2} a vector to clone\n * @returns {vec2} a new 2D vector\n */\nvec2.clone = function(a) {\n var out = new glMatrix.ARRAY_TYPE(2);\n out[0] = a[0];\n out[1] = a[1];\n return out;\n};\n\n/**\n * Creates a new vec2 initialized with the given values\n *\n * @param {Number} x X component\n * @param {Number} y Y component\n * @returns {vec2} a new 2D vector\n */\nvec2.fromValues = function(x, y) {\n var out = new glMatrix.ARRAY_TYPE(2);\n out[0] = x;\n out[1] = y;\n return out;\n};\n\n/**\n * Copy the values from one vec2 to another\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the source vector\n * @returns {vec2} out\n */\nvec2.copy = function(out, a) {\n out[0] = a[0];\n out[1] = a[1];\n return out;\n};\n\n/**\n * Set the components of a vec2 to the given values\n *\n * @param {vec2} out the receiving vector\n * @param {Number} x X component\n * @param {Number} y Y component\n * @returns {vec2} out\n */\nvec2.set = function(out, x, y) {\n out[0] = x;\n out[1] = y;\n return out;\n};\n\n/**\n * Adds two vec2's\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the first operand\n * @param {vec2} b the second operand\n * @returns {vec2} out\n */\nvec2.add = function(out, a, b) {\n out[0] = a[0] + b[0];\n out[1] = a[1] + b[1];\n return out;\n};\n\n/**\n * Subtracts vector b from vector a\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the first operand\n * @param {vec2} b the second operand\n * @returns {vec2} out\n */\nvec2.subtract = function(out, a, b) {\n out[0] = a[0] - b[0];\n out[1] = a[1] - b[1];\n return out;\n};\n\n/**\n * Alias for {@link vec2.subtract}\n * @function\n */\nvec2.sub = vec2.subtract;\n\n/**\n * Multiplies two vec2's\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the first operand\n * @param {vec2} b the second operand\n * @returns {vec2} out\n */\nvec2.multiply = function(out, a, b) {\n out[0] = a[0] * b[0];\n out[1] = a[1] * b[1];\n return out;\n};\n\n/**\n * Alias for {@link vec2.multiply}\n * @function\n */\nvec2.mul = vec2.multiply;\n\n/**\n * Divides two vec2's\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the first operand\n * @param {vec2} b the second operand\n * @returns {vec2} out\n */\nvec2.divide = function(out, a, b) {\n out[0] = a[0] / b[0];\n out[1] = a[1] / b[1];\n return out;\n};\n\n/**\n * Alias for {@link vec2.divide}\n * @function\n */\nvec2.div = vec2.divide;\n\n/**\n * Returns the minimum of two vec2's\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the first operand\n * @param {vec2} b the second operand\n * @returns {vec2} out\n */\nvec2.min = function(out, a, b) {\n out[0] = Math.min(a[0], b[0]);\n out[1] = Math.min(a[1], b[1]);\n return out;\n};\n\n/**\n * Returns the maximum of two vec2's\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the first operand\n * @param {vec2} b the second operand\n * @returns {vec2} out\n */\nvec2.max = function(out, a, b) {\n out[0] = Math.max(a[0], b[0]);\n out[1] = Math.max(a[1], b[1]);\n return out;\n};\n\n/**\n * Scales a vec2 by a scalar number\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the vector to scale\n * @param {Number} b amount to scale the vector by\n * @returns {vec2} out\n */\nvec2.scale = function(out, a, b) {\n out[0] = a[0] * b;\n out[1] = a[1] * b;\n return out;\n};\n\n/**\n * Adds two vec2's after scaling the second operand by a scalar value\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the first operand\n * @param {vec2} b the second operand\n * @param {Number} scale the amount to scale b by before adding\n * @returns {vec2} out\n */\nvec2.scaleAndAdd = function(out, a, b, scale) {\n out[0] = a[0] + (b[0] * scale);\n out[1] = a[1] + (b[1] * scale);\n return out;\n};\n\n/**\n * Calculates the euclidian distance between two vec2's\n *\n * @param {vec2} a the first operand\n * @param {vec2} b the second operand\n * @returns {Number} distance between a and b\n */\nvec2.distance = function(a, b) {\n var x = b[0] - a[0],\n y = b[1] - a[1];\n return Math.sqrt(x*x + y*y);\n};\n\n/**\n * Alias for {@link vec2.distance}\n * @function\n */\nvec2.dist = vec2.distance;\n\n/**\n * Calculates the squared euclidian distance between two vec2's\n *\n * @param {vec2} a the first operand\n * @param {vec2} b the second operand\n * @returns {Number} squared distance between a and b\n */\nvec2.squaredDistance = function(a, b) {\n var x = b[0] - a[0],\n y = b[1] - a[1];\n return x*x + y*y;\n};\n\n/**\n * Alias for {@link vec2.squaredDistance}\n * @function\n */\nvec2.sqrDist = vec2.squaredDistance;\n\n/**\n * Calculates the length of a vec2\n *\n * @param {vec2} a vector to calculate length of\n * @returns {Number} length of a\n */\nvec2.length = function (a) {\n var x = a[0],\n y = a[1];\n return Math.sqrt(x*x + y*y);\n};\n\n/**\n * Alias for {@link vec2.length}\n * @function\n */\nvec2.len = vec2.length;\n\n/**\n * Calculates the squared length of a vec2\n *\n * @param {vec2} a vector to calculate squared length of\n * @returns {Number} squared length of a\n */\nvec2.squaredLength = function (a) {\n var x = a[0],\n y = a[1];\n return x*x + y*y;\n};\n\n/**\n * Alias for {@link vec2.squaredLength}\n * @function\n */\nvec2.sqrLen = vec2.squaredLength;\n\n/**\n * Negates the components of a vec2\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a vector to negate\n * @returns {vec2} out\n */\nvec2.negate = function(out, a) {\n out[0] = -a[0];\n out[1] = -a[1];\n return out;\n};\n\n/**\n * Returns the inverse of the components of a vec2\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a vector to invert\n * @returns {vec2} out\n */\nvec2.inverse = function(out, a) {\n out[0] = 1.0 / a[0];\n out[1] = 1.0 / a[1];\n return out;\n};\n\n/**\n * Normalize a vec2\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a vector to normalize\n * @returns {vec2} out\n */\nvec2.normalize = function(out, a) {\n var x = a[0],\n y = a[1];\n var len = x*x + y*y;\n if (len > 0) {\n //TODO: evaluate use of glm_invsqrt here?\n len = 1 / Math.sqrt(len);\n out[0] = a[0] * len;\n out[1] = a[1] * len;\n }\n return out;\n};\n\n/**\n * Calculates the dot product of two vec2's\n *\n * @param {vec2} a the first operand\n * @param {vec2} b the second operand\n * @returns {Number} dot product of a and b\n */\nvec2.dot = function (a, b) {\n return a[0] * b[0] + a[1] * b[1];\n};\n\n/**\n * Computes the cross product of two vec2's\n * Note that the cross product must by definition produce a 3D vector\n *\n * @param {vec3} out the receiving vector\n * @param {vec2} a the first operand\n * @param {vec2} b the second operand\n * @returns {vec3} out\n */\nvec2.cross = function(out, a, b) {\n var z = a[0] * b[1] - a[1] * b[0];\n out[0] = out[1] = 0;\n out[2] = z;\n return out;\n};\n\n/**\n * Performs a linear interpolation between two vec2's\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the first operand\n * @param {vec2} b the second operand\n * @param {Number} t interpolation amount between the two inputs\n * @returns {vec2} out\n */\nvec2.lerp = function (out, a, b, t) {\n var ax = a[0],\n ay = a[1];\n out[0] = ax + t * (b[0] - ax);\n out[1] = ay + t * (b[1] - ay);\n return out;\n};\n\n/**\n * Generates a random vector with the given scale\n *\n * @param {vec2} out the receiving vector\n * @param {Number} [scale] Length of the resulting vector. If ommitted, a unit vector will be returned\n * @returns {vec2} out\n */\nvec2.random = function (out, scale) {\n scale = scale || 1.0;\n var r = glMatrix.RANDOM() * 2.0 * Math.PI;\n out[0] = Math.cos(r) * scale;\n out[1] = Math.sin(r) * scale;\n return out;\n};\n\n/**\n * Transforms the vec2 with a mat2\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the vector to transform\n * @param {mat2} m matrix to transform with\n * @returns {vec2} out\n */\nvec2.transformMat2 = function(out, a, m) {\n var x = a[0],\n y = a[1];\n out[0] = m[0] * x + m[2] * y;\n out[1] = m[1] * x + m[3] * y;\n return out;\n};\n\n/**\n * Transforms the vec2 with a mat2d\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the vector to transform\n * @param {mat2d} m matrix to transform with\n * @returns {vec2} out\n */\nvec2.transformMat2d = function(out, a, m) {\n var x = a[0],\n y = a[1];\n out[0] = m[0] * x + m[2] * y + m[4];\n out[1] = m[1] * x + m[3] * y + m[5];\n return out;\n};\n\n/**\n * Transforms the vec2 with a mat3\n * 3rd vector component is implicitly '1'\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the vector to transform\n * @param {mat3} m matrix to transform with\n * @returns {vec2} out\n */\nvec2.transformMat3 = function(out, a, m) {\n var x = a[0],\n y = a[1];\n out[0] = m[0] * x + m[3] * y + m[6];\n out[1] = m[1] * x + m[4] * y + m[7];\n return out;\n};\n\n/**\n * Transforms the vec2 with a mat4\n * 3rd vector component is implicitly '0'\n * 4th vector component is implicitly '1'\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the vector to transform\n * @param {mat4} m matrix to transform with\n * @returns {vec2} out\n */\nvec2.transformMat4 = function(out, a, m) {\n var x = a[0], \n y = a[1];\n out[0] = m[0] * x + m[4] * y + m[12];\n out[1] = m[1] * x + m[5] * y + m[13];\n return out;\n};\n\n/**\n * Perform some operation over an array of vec2s.\n *\n * @param {Array} a the array of vectors to iterate over\n * @param {Number} stride Number of elements between the start of each vec2. If 0 assumes tightly packed\n * @param {Number} offset Number of elements to skip at the beginning of the array\n * @param {Number} count Number of vec2s to iterate over. If 0 iterates over entire array\n * @param {Function} fn Function to call for each vector in the array\n * @param {Object} [arg] additional argument to pass to fn\n * @returns {Array} a\n * @function\n */\nvec2.forEach = (function() {\n var vec = vec2.create();\n\n return function(a, stride, offset, count, fn, arg) {\n var i, l;\n if(!stride) {\n stride = 2;\n }\n\n if(!offset) {\n offset = 0;\n }\n \n if(count) {\n l = Math.min((count * stride) + offset, a.length);\n } else {\n l = a.length;\n }\n\n for(i = offset; i < l; i += stride) {\n vec[0] = a[i]; vec[1] = a[i+1];\n fn(vec, vec, arg);\n a[i] = vec[0]; a[i+1] = vec[1];\n }\n \n return a;\n };\n})();\n\n/**\n * Returns a string representation of a vector\n *\n * @param {vec2} vec vector to represent as a string\n * @returns {String} string representation of the vector\n */\nvec2.str = function (a) {\n return 'vec2(' + a[0] + ', ' + a[1] + ')';\n};\n\nmodule.exports = vec2;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/gl-matrix/src/gl-matrix/vec2.js\n ** module id = 18\n ** module chunks = 0\n **/","export default {\n init : function(arr, val) {\n var l = arr.length;\n while (l--) {\n arr[l] = val;\n }\n },\n\n /**\n * Shuffles the content of an array\n * @return {Array} the array itself shuffled\n */\n shuffle : function(arr) {\n var i = arr.length - 1, j, x;\n for (i; i >= 0; i--) {\n j = Math.floor(Math.random() * i);\n x = arr[i];\n arr[i] = arr[j];\n arr[j] = x;\n }\n return arr;\n },\n\n toPointList : function(arr) {\n var i, j, row = [], rows = [];\n for ( i = 0; i < arr.length; i++) {\n row = [];\n for ( j = 0; j < arr[i].length; j++) {\n row[j] = arr[i][j];\n }\n rows[i] = \"[\" + row.join(\",\") + \"]\";\n }\n return \"[\" + rows.join(\",\\r\\n\") + \"]\";\n },\n\n /**\n * returns the elements which's score is bigger than the threshold\n * @return {Array} the reduced array\n */\n threshold : function(arr, threshold, scoreFunc) {\n var i, queue = [];\n for ( i = 0; i < arr.length; i++) {\n if (scoreFunc.apply(arr, [arr[i]]) >= threshold) {\n queue.push(arr[i]);\n }\n }\n return queue;\n },\n\n maxIndex : function(arr) {\n var i, max = 0;\n for ( i = 0; i < arr.length; i++) {\n if (arr[i] > arr[max]) {\n max = i;\n }\n }\n return max;\n },\n\n max : function(arr) {\n var i, max = 0;\n for ( i = 0; i < arr.length; i++) {\n if (arr[i] > max) {\n max = arr[i];\n }\n }\n return max;\n },\n\n sum: function(arr) {\n var length = arr.length,\n sum = 0;\n\n while(length--) {\n sum += arr[length];\n }\n return sum;\n }\n};\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/array_helper.js\n **/","/* jshint undef: true, unused: true, browser:true, devel: true */\n/* global define */\n\nimport ImageWrapper from './image_wrapper';\nimport CVUtils from './cv_utils';\nimport Rasterizer from './rasterizer';\nimport Tracer from './tracer';\nimport skeletonizer from './skeletonizer';\nimport ArrayHelper from './array_helper';\nimport ImageDebug from './image_debug';\nimport glMatrix from 'gl-matrix';\n\nvar _config,\n _currentImageWrapper,\n _skelImageWrapper,\n _subImageWrapper,\n _labelImageWrapper,\n _patchGrid,\n _patchLabelGrid,\n _imageToPatchGrid,\n _binaryImageWrapper,\n _patchSize,\n _canvasContainer = {\n ctx : {\n binary : null\n },\n dom : {\n binary : null\n }\n },\n _numPatches = {x: 0, y: 0},\n _inputImageWrapper,\n _skeletonizer,\n vec2 = glMatrix.vec2,\n mat2 = glMatrix.mat2,\n self = (typeof window !== 'undefined') ? window : self;\n\nfunction initBuffers() {\n var skeletonImageData;\n\n if (_config.halfSample) {\n _currentImageWrapper = new ImageWrapper({\n x : _inputImageWrapper.size.x / 2 | 0,\n y : _inputImageWrapper.size.y / 2 | 0\n });\n } else {\n _currentImageWrapper = _inputImageWrapper;\n }\n\n _patchSize = CVUtils.calculatePatchSize(_config.patchSize, _currentImageWrapper.size);\n\n _numPatches.x = _currentImageWrapper.size.x / _patchSize.x | 0;\n _numPatches.y = _currentImageWrapper.size.y / _patchSize.y | 0;\n\n _binaryImageWrapper = new ImageWrapper(_currentImageWrapper.size, undefined, Uint8Array, false);\n\n _labelImageWrapper = new ImageWrapper(_patchSize, undefined, Array, true);\n\n skeletonImageData = new ArrayBuffer(64*1024);\n _subImageWrapper = new ImageWrapper(_patchSize, new Uint8Array(skeletonImageData, 0, _patchSize.x * _patchSize.y));\n _skelImageWrapper = new ImageWrapper(_patchSize, new Uint8Array(skeletonImageData, _patchSize.x * _patchSize.y * 3, _patchSize.x * _patchSize.y), undefined, true);\n _skeletonizer = skeletonizer(self, {\n size : _patchSize.x\n }, skeletonImageData);\n\n _imageToPatchGrid = new ImageWrapper({\n x : (_currentImageWrapper.size.x / _subImageWrapper.size.x) | 0,\n y : (_currentImageWrapper.size.y / _subImageWrapper.size.y) | 0\n }, undefined, Array, true);\n _patchGrid = new ImageWrapper(_imageToPatchGrid.size, undefined, undefined, true);\n _patchLabelGrid = new ImageWrapper(_imageToPatchGrid.size, undefined, Int32Array, true);\n}\n\nfunction initCanvas() {\n if (_config.useWorker || typeof document === 'undefined') {\n return;\n }\n _canvasContainer.dom.binary = document.createElement(\"canvas\");\n _canvasContainer.dom.binary.className = \"binaryBuffer\";\n if (_config.showCanvas === true) {\n document.querySelector(\"#debug\").appendChild(_canvasContainer.dom.binary);\n }\n _canvasContainer.ctx.binary = _canvasContainer.dom.binary.getContext(\"2d\");\n _canvasContainer.dom.binary.width = _binaryImageWrapper.size.x;\n _canvasContainer.dom.binary.height = _binaryImageWrapper.size.y;\n}\n\n/**\n * Creates a bounding box which encloses all the given patches\n * @returns {Array} The minimal bounding box\n */\nfunction boxFromPatches(patches) {\n var overAvg, i, j, patch, transMat, minx = _binaryImageWrapper.size.x, miny = _binaryImageWrapper.size.y, maxx = -_binaryImageWrapper.size.x, maxy = -_binaryImageWrapper.size.y, box, scale;\n\n // draw all patches which are to be taken into consideration\n overAvg = 0;\n for ( i = 0; i < patches.length; i++) {\n patch = patches[i];\n overAvg += patch.rad;\n if (_config.showPatches) {\n ImageDebug.drawRect(patch.pos, _subImageWrapper.size, _canvasContainer.ctx.binary, {color: \"red\"});\n }\n }\n\n overAvg /= patches.length;\n overAvg = (overAvg * 180 / Math.PI + 90) % 180 - 90;\n if (overAvg < 0) {\n overAvg += 180;\n }\n\n overAvg = (180 - overAvg) * Math.PI / 180;\n transMat = mat2.clone([Math.cos(overAvg), Math.sin(overAvg), -Math.sin(overAvg), Math.cos(overAvg)]);\n\n // iterate over patches and rotate by angle\n for ( i = 0; i < patches.length; i++) {\n patch = patches[i];\n for ( j = 0; j < 4; j++) {\n vec2.transformMat2(patch.box[j], patch.box[j], transMat);\n }\n\n if (_config.boxFromPatches.showTransformed) {\n ImageDebug.drawPath(patch.box, {x: 0, y: 1}, _canvasContainer.ctx.binary, {color: '#99ff00', lineWidth: 2});\n }\n }\n\n // find bounding box\n for ( i = 0; i < patches.length; i++) {\n patch = patches[i];\n for ( j = 0; j < 4; j++) {\n if (patch.box[j][0] < minx) {\n minx = patch.box[j][0];\n }\n if (patch.box[j][0] > maxx) {\n maxx = patch.box[j][0];\n }\n if (patch.box[j][1] < miny) {\n miny = patch.box[j][1];\n }\n if (patch.box[j][1] > maxy) {\n maxy = patch.box[j][1];\n }\n }\n }\n\n box = [[minx, miny], [maxx, miny], [maxx, maxy], [minx, maxy]];\n\n if (_config.boxFromPatches.showTransformedBox) {\n ImageDebug.drawPath(box, {x: 0, y: 1}, _canvasContainer.ctx.binary, {color: '#ff0000', lineWidth: 2});\n }\n\n scale = _config.halfSample ? 2 : 1;\n // reverse rotation;\n transMat = mat2.invert(transMat, transMat);\n for ( j = 0; j < 4; j++) {\n vec2.transformMat2(box[j], box[j], transMat);\n }\n\n if (_config.boxFromPatches.showBB) {\n ImageDebug.drawPath(box, {x: 0, y: 1}, _canvasContainer.ctx.binary, {color: '#ff0000', lineWidth: 2});\n }\n\n for ( j = 0; j < 4; j++) {\n vec2.scale(box[j], box[j], scale);\n }\n\n return box;\n}\n\n/**\n * Creates a binary image of the current image\n */\nfunction binarizeImage() {\n CVUtils.otsuThreshold(_currentImageWrapper, _binaryImageWrapper);\n _binaryImageWrapper.zeroBorder();\n if (_config.showCanvas) {\n _binaryImageWrapper.show(_canvasContainer.dom.binary, 255);\n }\n}\n\n/**\n * Iterate over the entire image\n * extract patches\n */\nfunction findPatches() {\n var i,\n j,\n x,\n y,\n moments,\n patchesFound = [],\n rasterizer,\n rasterResult,\n patch;\n for ( i = 0; i < _numPatches.x; i++) {\n for ( j = 0; j < _numPatches.y; j++) {\n\n x = _subImageWrapper.size.x * i;\n y = _subImageWrapper.size.y * j;\n\n // seperate parts\n skeletonize(x, y);\n\n // Rasterize, find individual bars\n _skelImageWrapper.zeroBorder();\n ArrayHelper.init(_labelImageWrapper.data, 0);\n rasterizer = Rasterizer.create(_skelImageWrapper, _labelImageWrapper);\n rasterResult = rasterizer.rasterize(0);\n\n if (_config.showLabels) {\n _labelImageWrapper.overlay(_canvasContainer.dom.binary, Math.floor(360 / rasterResult.count), {x : x, y : y});\n }\n\n // calculate moments from the skeletonized patch\n moments = _labelImageWrapper.moments(rasterResult.count);\n\n // extract eligible patches\n patchesFound = patchesFound.concat(describePatch(moments, [i, j], x, y));\n }\n }\n\n if (_config.showFoundPatches) {\n for ( i = 0; i < patchesFound.length; i++) {\n patch = patchesFound[i];\n ImageDebug.drawRect(patch.pos, _subImageWrapper.size, _canvasContainer.ctx.binary, {color: \"#99ff00\", lineWidth: 2});\n }\n }\n\n return patchesFound;\n}\n\n/**\n * Finds those connected areas which contain at least 6 patches\n * and returns them ordered DESC by the number of contained patches\n * @param {Number} maxLabel\n */\nfunction findBiggestConnectedAreas(maxLabel){\n var i,\n sum,\n labelHist = [],\n topLabels = [];\n\n for ( i = 0; i < maxLabel; i++) {\n labelHist.push(0);\n }\n sum = _patchLabelGrid.data.length;\n while (sum--) {\n if (_patchLabelGrid.data[sum] > 0) {\n labelHist[_patchLabelGrid.data[sum] - 1]++;\n }\n }\n\n labelHist = labelHist.map(function(val, idx) {\n return {\n val : val,\n label : idx + 1\n };\n });\n\n labelHist.sort(function(a, b) {\n return b.val - a.val;\n });\n\n // extract top areas with at least 6 patches present\n topLabels = labelHist.filter(function(el) {\n return el.val >= 5;\n });\n\n return topLabels;\n}\n\n/**\n *\n */\nfunction findBoxes(topLabels, maxLabel) {\n var i,\n j,\n sum,\n patches = [],\n patch,\n box,\n boxes = [],\n hsv = [0, 1, 1],\n rgb = [0, 0, 0];\n\n for ( i = 0; i < topLabels.length; i++) {\n sum = _patchLabelGrid.data.length;\n patches.length = 0;\n while (sum--) {\n if (_patchLabelGrid.data[sum] === topLabels[i].label) {\n patch = _imageToPatchGrid.data[sum];\n patches.push(patch);\n }\n }\n box = boxFromPatches(patches);\n if (box) {\n boxes.push(box);\n\n // draw patch-labels if requested\n if (_config.showRemainingPatchLabels) {\n for ( j = 0; j < patches.length; j++) {\n patch = patches[j];\n hsv[0] = (topLabels[i].label / (maxLabel + 1)) * 360;\n CVUtils.hsv2rgb(hsv, rgb);\n ImageDebug.drawRect(patch.pos, _subImageWrapper.size, _canvasContainer.ctx.binary, {color: \"rgb(\" + rgb.join(\",\") + \")\", lineWidth: 2});\n }\n }\n }\n }\n return boxes;\n}\n\n/**\n * Find similar moments (via cluster)\n * @param {Object} moments\n */\nfunction similarMoments(moments) {\n var clusters = CVUtils.cluster(moments, 0.90);\n var topCluster = CVUtils.topGeneric(clusters, 1, function(e) {\n return e.getPoints().length;\n });\n var points = [], result = [];\n if (topCluster.length === 1) {\n points = topCluster[0].item.getPoints();\n for (var i = 0; i < points.length; i++) {\n result.push(points[i].point);\n }\n }\n return result;\n}\n\nfunction skeletonize(x, y) {\n _binaryImageWrapper.subImageAsCopy(_subImageWrapper, CVUtils.imageRef(x, y));\n _skeletonizer.skeletonize();\n\n // Show skeleton if requested\n if (_config.showSkeleton) {\n _skelImageWrapper.overlay(_canvasContainer.dom.binary, 360, CVUtils.imageRef(x, y));\n }\n}\n\n/**\n * Extracts and describes those patches which seem to contain a barcode pattern\n * @param {Array} moments\n * @param {Object} patchPos,\n * @param {Number} x\n * @param {Number} y\n * @returns {Array} list of patches\n */\nfunction describePatch(moments, patchPos, x, y) {\n var k,\n avg,\n sum = 0,\n eligibleMoments = [],\n matchingMoments,\n patch,\n patchesFound = [],\n minComponentWeight = Math.ceil(_patchSize.x/3);\n\n if (moments.length >= 2) {\n // only collect moments which's area covers at least minComponentWeight pixels.\n for ( k = 0; k < moments.length; k++) {\n if (moments[k].m00 > minComponentWeight) {\n eligibleMoments.push(moments[k]);\n }\n }\n\n // if at least 2 moments are found which have at least minComponentWeights covered\n if (eligibleMoments.length >= 2) {\n sum = eligibleMoments.length;\n matchingMoments = similarMoments(eligibleMoments);\n avg = 0;\n // determine the similarity of the moments\n for ( k = 0; k < matchingMoments.length; k++) {\n avg += matchingMoments[k].rad;\n }\n\n // Only two of the moments are allowed not to fit into the equation\n // add the patch to the set\n if (matchingMoments.length > 1 && matchingMoments.length >= (eligibleMoments.length / 4) * 3 && matchingMoments.length > moments.length / 4) {\n avg /= matchingMoments.length;\n patch = {\n index : patchPos[1] * _numPatches.x + patchPos[0],\n pos : {\n x : x,\n y : y\n },\n box : [vec2.clone([x, y]), vec2.clone([x + _subImageWrapper.size.x, y]), vec2.clone([x + _subImageWrapper.size.x, y + _subImageWrapper.size.y]), vec2.clone([x, y + _subImageWrapper.size.y])],\n moments : matchingMoments,\n rad : avg,\n vec : vec2.clone([Math.cos(avg), Math.sin(avg)])\n };\n patchesFound.push(patch);\n }\n }\n }\n return patchesFound;\n}\n\n/**\n * finds patches which are connected and share the same orientation\n * @param {Object} patchesFound\n */\nfunction rasterizeAngularSimilarity(patchesFound) {\n var label = 0,\n threshold = 0.95,\n currIdx = 0,\n j,\n patch,\n hsv = [0, 1, 1],\n rgb = [0, 0, 0];\n\n function notYetProcessed() {\n var i;\n for ( i = 0; i < _patchLabelGrid.data.length; i++) {\n if (_patchLabelGrid.data[i] === 0 && _patchGrid.data[i] === 1) {\n return i;\n }\n }\n return _patchLabelGrid.length;\n }\n\n function trace(currentIdx) {\n var x, y, currentPatch, patch, idx, dir, current = {\n x : currentIdx % _patchLabelGrid.size.x,\n y : (currentIdx / _patchLabelGrid.size.x) | 0\n }, similarity;\n\n if (currentIdx < _patchLabelGrid.data.length) {\n currentPatch = _imageToPatchGrid.data[currentIdx];\n // assign label\n _patchLabelGrid.data[currentIdx] = label;\n for ( dir = 0; dir < Tracer.searchDirections.length; dir++) {\n y = current.y + Tracer.searchDirections[dir][0];\n x = current.x + Tracer.searchDirections[dir][1];\n idx = y * _patchLabelGrid.size.x + x;\n\n // continue if patch empty\n if (_patchGrid.data[idx] === 0) {\n _patchLabelGrid.data[idx] = Number.MAX_VALUE;\n continue;\n }\n\n patch = _imageToPatchGrid.data[idx];\n if (_patchLabelGrid.data[idx] === 0) {\n similarity = Math.abs(vec2.dot(patch.vec, currentPatch.vec));\n if (similarity > threshold) {\n trace(idx);\n }\n }\n }\n }\n }\n\n // prepare for finding the right patches\n ArrayHelper.init(_patchGrid.data, 0);\n ArrayHelper.init(_patchLabelGrid.data, 0);\n ArrayHelper.init(_imageToPatchGrid.data, null);\n\n for ( j = 0; j < patchesFound.length; j++) {\n patch = patchesFound[j];\n _imageToPatchGrid.data[patch.index] = patch;\n _patchGrid.data[patch.index] = 1;\n }\n\n // rasterize the patches found to determine area\n _patchGrid.zeroBorder();\n\n while (( currIdx = notYetProcessed()) < _patchLabelGrid.data.length) {\n label++;\n trace(currIdx);\n }\n\n // draw patch-labels if requested\n if (_config.showPatchLabels) {\n for ( j = 0; j < _patchLabelGrid.data.length; j++) {\n if (_patchLabelGrid.data[j] > 0 && _patchLabelGrid.data[j] <= label) {\n patch = _imageToPatchGrid.data[j];\n hsv[0] = (_patchLabelGrid.data[j] / (label + 1)) * 360;\n CVUtils.hsv2rgb(hsv, rgb);\n ImageDebug.drawRect(patch.pos, _subImageWrapper.size, _canvasContainer.ctx.binary, {color: \"rgb(\" + rgb.join(\",\") + \")\", lineWidth: 2});\n }\n }\n }\n\n return label;\n}\n\nexport default {\n init : function(inputImageWrapper, config) {\n _config = config;\n _inputImageWrapper = inputImageWrapper;\n\n initBuffers();\n initCanvas();\n },\n\n locate : function() {\n var patchesFound,\n topLabels,\n boxes;\n\n if (_config.halfSample) {\n CVUtils.halfSample(_inputImageWrapper, _currentImageWrapper);\n }\n\n binarizeImage();\n patchesFound = findPatches();\n // return unless 5% or more patches are found\n if (patchesFound.length < _numPatches.x * _numPatches.y * 0.05) {\n return null;\n }\n\n // rasterrize area by comparing angular similarity;\n var maxLabel = rasterizeAngularSimilarity(patchesFound);\n if (maxLabel < 1) {\n return null;\n }\n\n // search for area with the most patches (biggest connected area)\n topLabels = findBiggestConnectedAreas(maxLabel);\n if (topLabels.length === 0) {\n return null;\n }\n\n boxes = findBoxes(topLabels, maxLabel);\n return boxes;\n },\n\n checkImageConstraints: function(inputStream, config) {\n var patchSize,\n width = inputStream.getWidth(),\n height = inputStream.getHeight(),\n halfSample = config.halfSample ? 0.5 : 1,\n size,\n area;\n\n // calculate width and height based on area\n if (inputStream.getConfig().area) {\n area = CVUtils.computeImageArea(width, height, inputStream.getConfig().area);\n inputStream.setTopRight({x: area.sx, y: area.sy});\n inputStream.setCanvasSize({x: width, y: height});\n width = area.sw;\n height = area.sh;\n }\n\n size = {\n x: Math.floor(width * halfSample),\n y: Math.floor(height * halfSample)\n };\n\n patchSize = CVUtils.calculatePatchSize(config.patchSize, size);\n console.log(\"Patch-Size: \" + JSON.stringify(patchSize));\n\n inputStream.setWidth(Math.floor(Math.floor(size.x/patchSize.x)*(1/halfSample)*patchSize.x));\n inputStream.setHeight(Math.floor(Math.floor(size.y/patchSize.y)*(1/halfSample)*patchSize.y));\n\n if ((inputStream.getWidth() % patchSize.x) === 0 && (inputStream.getHeight() % patchSize.y) === 0) {\n return true;\n }\n\n throw new Error(\"Image dimensions do not comply with the current settings: Width (\" +\n width + \" )and height (\" + height +\n \") must a multiple of \" + patchSize.x);\n }\n};\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/barcode_locator.js\n **/","import Tracer from './tracer';\n\n/**\n * http://www.codeproject.com/Tips/407172/Connected-Component-Labeling-and-Vectorization\n */\nvar Rasterizer = {\n createContour2D : function() {\n return {\n dir : null,\n index : null,\n firstVertex : null,\n insideContours : null,\n nextpeer : null,\n prevpeer : null\n };\n },\n CONTOUR_DIR : {\n CW_DIR : 0,\n CCW_DIR : 1,\n UNKNOWN_DIR : 2\n },\n DIR : {\n OUTSIDE_EDGE : -32767,\n INSIDE_EDGE : -32766\n },\n create : function(imageWrapper, labelWrapper) {\n var imageData = imageWrapper.data,\n labelData = labelWrapper.data,\n width = imageWrapper.size.x,\n height = imageWrapper.size.y,\n tracer = Tracer.create(imageWrapper, labelWrapper);\n\n return {\n rasterize : function(depthlabel) {\n var color,\n bc,\n lc,\n labelindex,\n cx,\n cy,\n colorMap = [],\n vertex,\n p,\n cc,\n sc,\n pos,\n connectedCount = 0,\n i;\n\n for ( i = 0; i < 400; i++) {\n colorMap[i] = 0;\n }\n\n colorMap[0] = imageData[0];\n cc = null;\n for ( cy = 1; cy < height - 1; cy++) {\n labelindex = 0;\n bc = colorMap[0];\n for ( cx = 1; cx < width - 1; cx++) {\n pos = cy * width + cx;\n if (labelData[pos] === 0) {\n color = imageData[pos];\n if (color !== bc) {\n if (labelindex === 0) {\n lc = connectedCount + 1;\n colorMap[lc] = color;\n bc = color;\n vertex = tracer.contourTracing(cy, cx, lc, color, Rasterizer.DIR.OUTSIDE_EDGE);\n if (vertex !== null) {\n connectedCount++;\n labelindex = lc;\n p = Rasterizer.createContour2D();\n p.dir = Rasterizer.CONTOUR_DIR.CW_DIR;\n p.index = labelindex;\n p.firstVertex = vertex;\n p.nextpeer = cc;\n p.insideContours = null;\n if (cc !== null) {\n cc.prevpeer = p;\n }\n cc = p;\n }\n } else {\n vertex = tracer.contourTracing(cy, cx, Rasterizer.DIR.INSIDE_EDGE, color, labelindex);\n if (vertex !== null) {\n p = Rasterizer.createContour2D();\n p.firstVertex = vertex;\n p.insideContours = null;\n if (depthlabel === 0) {\n p.dir = Rasterizer.CONTOUR_DIR.CCW_DIR;\n } else {\n p.dir = Rasterizer.CONTOUR_DIR.CW_DIR;\n }\n p.index = depthlabel;\n sc = cc;\n while ((sc !== null) && sc.index !== labelindex) {\n sc = sc.nextpeer;\n }\n if (sc !== null) {\n p.nextpeer = sc.insideContours;\n if (sc.insideContours !== null) {\n sc.insideContours.prevpeer = p;\n }\n sc.insideContours = p;\n }\n }\n }\n } else {\n labelData[pos] = labelindex;\n }\n } else if (labelData[pos] === Rasterizer.DIR.OUTSIDE_EDGE || labelData[pos] === Rasterizer.DIR.INSIDE_EDGE) {\n labelindex = 0;\n if (labelData[pos] === Rasterizer.DIR.INSIDE_EDGE) {\n bc = imageData[pos];\n } else {\n bc = colorMap[0];\n }\n } else {\n labelindex = labelData[pos];\n bc = colorMap[labelindex];\n }\n }\n }\n sc = cc;\n while (sc !== null) {\n sc.index = depthlabel;\n sc = sc.nextpeer;\n }\n return {\n cc : cc,\n count : connectedCount\n };\n },\n debug: {\n drawContour : function(canvas, firstContour) {\n var ctx = canvas.getContext(\"2d\"),\n pq = firstContour,\n iq,\n q,\n p;\n\n ctx.strokeStyle = \"red\";\n ctx.fillStyle = \"red\";\n ctx.lineWidth = 1;\n\n if (pq !== null) {\n iq = pq.insideContours;\n } else {\n iq = null;\n }\n\n while (pq !== null) {\n if (iq !== null) {\n q = iq;\n iq = iq.nextpeer;\n } else {\n q = pq;\n pq = pq.nextpeer;\n if (pq !== null) {\n iq = pq.insideContours;\n } else {\n iq = null;\n }\n }\n\n switch(q.dir) {\n case Rasterizer.CONTOUR_DIR.CW_DIR:\n ctx.strokeStyle = \"red\";\n break;\n case Rasterizer.CONTOUR_DIR.CCW_DIR:\n ctx.strokeStyle = \"blue\";\n break;\n case Rasterizer.CONTOUR_DIR.UNKNOWN_DIR:\n ctx.strokeStyle = \"green\";\n break;\n }\n\n p = q.firstVertex;\n ctx.beginPath();\n ctx.moveTo(p.x, p.y);\n do {\n p = p.next;\n ctx.lineTo(p.x, p.y);\n } while(p !== q.firstVertex);\n ctx.stroke();\n }\n }\n }\n };\n }\n};\n\nexport default Rasterizer;\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/rasterizer.js\n **/","/**\n * http://www.codeproject.com/Tips/407172/Connected-Component-Labeling-and-Vectorization\n */\nvar Tracer = {\n searchDirections : [[0, 1], [1, 1], [1, 0], [1, -1], [0, -1], [-1, -1], [-1, 0], [-1, 1]],\n create : function(imageWrapper, labelWrapper) {\n var imageData = imageWrapper.data,\n labelData = labelWrapper.data,\n searchDirections = this.searchDirections,\n width = imageWrapper.size.x,\n pos;\n\n function trace(current, color, label, edgelabel) {\n var i,\n y,\n x;\n\n for ( i = 0; i < 7; i++) {\n y = current.cy + searchDirections[current.dir][0];\n x = current.cx + searchDirections[current.dir][1];\n pos = y * width + x;\n if ((imageData[pos] === color) && ((labelData[pos] === 0) || (labelData[pos] === label))) {\n labelData[pos] = label;\n current.cy = y;\n current.cx = x;\n return true;\n } else {\n if (labelData[pos] === 0) {\n labelData[pos] = edgelabel;\n }\n current.dir = (current.dir + 1) % 8;\n }\n }\n return false;\n }\n\n function vertex2D(x, y, dir) {\n return {\n dir : dir,\n x : x,\n y : y,\n next : null,\n prev : null\n };\n }\n\n function contourTracing(sy, sx, label, color, edgelabel) {\n var Fv = null,\n Cv,\n P,\n ldir,\n current = {\n cx : sx,\n cy : sy,\n dir : 0\n };\n\n if (trace(current, color, label, edgelabel)) {\n Fv = vertex2D(sx, sy, current.dir);\n Cv = Fv;\n ldir = current.dir;\n P = vertex2D(current.cx, current.cy, 0);\n P.prev = Cv;\n Cv.next = P;\n P.next = null;\n Cv = P;\n do {\n current.dir = (current.dir + 6) % 8;\n trace(current, color, label, edgelabel);\n if (ldir != current.dir) {\n Cv.dir = current.dir;\n P = vertex2D(current.cx, current.cy, 0);\n P.prev = Cv;\n Cv.next = P;\n P.next = null;\n Cv = P;\n } else {\n Cv.dir = ldir;\n Cv.x = current.cx;\n Cv.y = current.cy;\n }\n ldir = current.dir;\n } while(current.cx != sx || current.cy != sy);\n Fv.prev = Cv.prev;\n Cv.prev.next = Fv;\n }\n return Fv;\n }\n\n return {\n trace : function(current, color, label, edgelabel) {\n return trace(current, color, label, edgelabel);\n },\n contourTracing : function(sy, sx, label, color, edgelabel) {\n return contourTracing(sy, sx, label, color, edgelabel);\n }\n };\n }\n};\n\nexport default (Tracer);\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/tracer.js\n **/","/* @preserve ASM BEGIN */\nfunction Skeletonizer(stdlib, foreign, buffer) {\n \"use asm\";\n\n var images = new stdlib.Uint8Array(buffer),\n size = foreign.size | 0,\n imul = stdlib.Math.imul;\n\n function erode(inImagePtr, outImagePtr) {\n inImagePtr = inImagePtr | 0;\n outImagePtr = outImagePtr | 0;\n\n var v = 0,\n u = 0,\n sum = 0,\n yStart1 = 0,\n yStart2 = 0,\n xStart1 = 0,\n xStart2 = 0,\n offset = 0;\n\n for ( v = 1; (v | 0) < ((size - 1) | 0); v = (v + 1) | 0) {\n offset = (offset + size) | 0;\n for ( u = 1; (u | 0) < ((size - 1) | 0); u = (u + 1) | 0) {\n yStart1 = (offset - size) | 0;\n yStart2 = (offset + size) | 0;\n xStart1 = (u - 1) | 0;\n xStart2 = (u + 1) | 0;\n sum = ((images[(inImagePtr + yStart1 + xStart1) | 0] | 0) + (images[(inImagePtr + yStart1 + xStart2) | 0] | 0) + (images[(inImagePtr + offset + u) | 0] | 0) + (images[(inImagePtr + yStart2 + xStart1) | 0] | 0) + (images[(inImagePtr + yStart2 + xStart2) | 0] | 0)) | 0;\n if ((sum | 0) == (5 | 0)) {\n images[(outImagePtr + offset + u) | 0] = 1;\n } else {\n images[(outImagePtr + offset + u) | 0] = 0;\n }\n }\n }\n return;\n }\n\n function subtract(aImagePtr, bImagePtr, outImagePtr) {\n aImagePtr = aImagePtr | 0;\n bImagePtr = bImagePtr | 0;\n outImagePtr = outImagePtr | 0;\n\n var length = 0;\n\n length = imul(size, size) | 0;\n\n while ((length | 0) > 0) {\n length = (length - 1) | 0;\n images[(outImagePtr + length) | 0] = ((images[(aImagePtr + length) | 0] | 0) - (images[(bImagePtr + length) | 0] | 0)) | 0;\n }\n }\n\n function bitwiseOr(aImagePtr, bImagePtr, outImagePtr) {\n aImagePtr = aImagePtr | 0;\n bImagePtr = bImagePtr | 0;\n outImagePtr = outImagePtr | 0;\n\n var length = 0;\n\n length = imul(size, size) | 0;\n\n while ((length | 0) > 0) {\n length = (length - 1) | 0;\n images[(outImagePtr + length) | 0] = ((images[(aImagePtr + length) | 0] | 0) | (images[(bImagePtr + length) | 0] | 0)) | 0;\n }\n }\n\n function countNonZero(imagePtr) {\n imagePtr = imagePtr | 0;\n\n var sum = 0,\n length = 0;\n\n length = imul(size, size) | 0;\n\n while ((length | 0) > 0) {\n length = (length - 1) | 0;\n sum = ((sum | 0) + (images[(imagePtr + length) | 0] | 0)) | 0;\n }\n\n return (sum | 0);\n }\n\n function init(imagePtr, value) {\n imagePtr = imagePtr | 0;\n value = value | 0;\n\n var length = 0;\n\n length = imul(size, size) | 0;\n\n while ((length | 0) > 0) {\n length = (length - 1) | 0;\n images[(imagePtr + length) | 0] = value;\n }\n }\n\n function dilate(inImagePtr, outImagePtr) {\n inImagePtr = inImagePtr | 0;\n outImagePtr = outImagePtr | 0;\n\n var v = 0,\n u = 0,\n sum = 0,\n yStart1 = 0,\n yStart2 = 0,\n xStart1 = 0,\n xStart2 = 0,\n offset = 0;\n\n for ( v = 1; (v | 0) < ((size - 1) | 0); v = (v + 1) | 0) {\n offset = (offset + size) | 0;\n for ( u = 1; (u | 0) < ((size - 1) | 0); u = (u + 1) | 0) {\n yStart1 = (offset - size) | 0;\n yStart2 = (offset + size) | 0;\n xStart1 = (u - 1) | 0;\n xStart2 = (u + 1) | 0;\n sum = ((images[(inImagePtr + yStart1 + xStart1) | 0] | 0) + (images[(inImagePtr + yStart1 + xStart2) | 0] | 0) + (images[(inImagePtr + offset + u) | 0] | 0) + (images[(inImagePtr + yStart2 + xStart1) | 0] | 0) + (images[(inImagePtr + yStart2 + xStart2) | 0] | 0)) | 0;\n if ((sum | 0) > (0 | 0)) {\n images[(outImagePtr + offset + u) | 0] = 1;\n } else {\n images[(outImagePtr + offset + u) | 0] = 0;\n }\n }\n }\n return;\n }\n\n function memcpy(srcImagePtr, dstImagePtr) {\n srcImagePtr = srcImagePtr | 0;\n dstImagePtr = dstImagePtr | 0;\n\n var length = 0;\n\n length = imul(size, size) | 0;\n\n while ((length | 0) > 0) {\n length = (length - 1) | 0;\n images[(dstImagePtr + length) | 0] = (images[(srcImagePtr + length) | 0] | 0);\n }\n }\n\n function zeroBorder(imagePtr) {\n imagePtr = imagePtr | 0;\n\n var x = 0,\n y = 0;\n\n for ( x = 0; (x | 0) < ((size - 1) | 0); x = (x + 1) | 0) {\n images[(imagePtr + x) | 0] = 0;\n images[(imagePtr + y) | 0] = 0;\n y = ((y + size) - 1) | 0;\n images[(imagePtr + y) | 0] = 0;\n y = (y + 1) | 0;\n }\n for ( x = 0; (x | 0) < (size | 0); x = (x + 1) | 0) {\n images[(imagePtr + y) | 0] = 0;\n y = (y + 1) | 0;\n }\n }\n\n function skeletonize() {\n var subImagePtr = 0,\n erodedImagePtr = 0,\n tempImagePtr = 0,\n skelImagePtr = 0,\n sum = 0,\n done = 0;\n\n erodedImagePtr = imul(size, size) | 0;\n tempImagePtr = (erodedImagePtr + erodedImagePtr) | 0;\n skelImagePtr = (tempImagePtr + erodedImagePtr) | 0;\n\n // init skel-image\n init(skelImagePtr, 0);\n zeroBorder(subImagePtr);\n\n do {\n erode(subImagePtr, erodedImagePtr);\n dilate(erodedImagePtr, tempImagePtr);\n subtract(subImagePtr, tempImagePtr, tempImagePtr);\n bitwiseOr(skelImagePtr, tempImagePtr, skelImagePtr);\n memcpy(erodedImagePtr, subImagePtr);\n sum = countNonZero(subImagePtr) | 0;\n done = ((sum | 0) == 0 | 0);\n } while(!done);\n }\n\n return {\n skeletonize : skeletonize\n };\n}\n/* @preserve ASM END */\n\nexport default Skeletonizer;\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/skeletonizer.js\n **/","export default {\n drawRect: function(pos, size, ctx, style){\n ctx.strokeStyle = style.color;\n ctx.fillStyle = style.color;\n ctx.lineWidth = 1;\n ctx.beginPath();\n ctx.strokeRect(pos.x, pos.y, size.x, size.y);\n },\n drawPath: function(path, def, ctx, style) {\n ctx.strokeStyle = style.color;\n ctx.fillStyle = style.color;\n ctx.lineWidth = style.lineWidth;\n ctx.beginPath();\n ctx.moveTo(path[0][def.x], path[0][def.y]);\n for (var j = 1; j < path.length; j++) {\n ctx.lineTo(path[j][def.x], path[j][def.y]);\n }\n ctx.closePath();\n ctx.stroke();\n },\n drawImage: function(imageData, size, ctx) {\n var canvasData = ctx.getImageData(0, 0, size.x, size.y),\n data = canvasData.data,\n imageDataPos = imageData.length,\n canvasDataPos = data.length,\n value;\n\n if (canvasDataPos/imageDataPos !== 4) {\n return false;\n }\n while(imageDataPos--){\n value = imageData[imageDataPos];\n data[--canvasDataPos] = 255;\n data[--canvasDataPos] = value;\n data[--canvasDataPos] = value;\n data[--canvasDataPos] = value;\n }\n ctx.putImageData(canvasData, 0, 0);\n return true;\n }\n};\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/image_debug.js\n **/","import Bresenham from './bresenham';\nimport ImageDebug from './image_debug';\nimport Code128Reader from './code_128_reader';\nimport EANReader from './ean_reader';\nimport Code39Reader from './code_39_reader';\nimport Code39VINReader from './code_39_vin_reader';\nimport CodabarReader from './codabar_reader';\nimport UPCReader from './upc_reader';\nimport EAN8Reader from './ean_8_reader';\nimport UPCEReader from './upc_e_reader';\nimport I2of5Reader from './i2of5_reader';\n\nvar readers = {\n code_128_reader: Code128Reader,\n ean_reader: EANReader,\n ean_8_reader: EAN8Reader,\n code_39_reader: Code39Reader,\n code_39_vin_reader: Code39VINReader,\n codabar_reader: CodabarReader,\n upc_reader: UPCReader,\n upc_e_reader: UPCEReader,\n i2of5_reader: I2of5Reader\n};\nexport default {\n create : function(config, inputImageWrapper) {\n var _canvas = {\n ctx : {\n frequency : null,\n pattern : null,\n overlay : null\n },\n dom : {\n frequency : null,\n pattern : null,\n overlay : null\n }\n },\n _barcodeReaders = [];\n\n initCanvas();\n initReaders();\n initConfig();\n\n function initCanvas() {\n if (typeof document !== 'undefined') {\n var $debug = document.querySelector(\"#debug.detection\");\n _canvas.dom.frequency = document.querySelector(\"canvas.frequency\");\n if (!_canvas.dom.frequency) {\n _canvas.dom.frequency = document.createElement(\"canvas\");\n _canvas.dom.frequency.className = \"frequency\";\n if($debug) {\n $debug.appendChild(_canvas.dom.frequency);\n }\n }\n _canvas.ctx.frequency = _canvas.dom.frequency.getContext(\"2d\");\n\n _canvas.dom.pattern = document.querySelector(\"canvas.patternBuffer\");\n if (!_canvas.dom.pattern) {\n _canvas.dom.pattern = document.createElement(\"canvas\");\n _canvas.dom.pattern.className = \"patternBuffer\";\n if($debug) {\n $debug.appendChild(_canvas.dom.pattern);\n }\n }\n _canvas.ctx.pattern = _canvas.dom.pattern.getContext(\"2d\");\n\n _canvas.dom.overlay = document.querySelector(\"canvas.drawingBuffer\");\n if (_canvas.dom.overlay) {\n _canvas.ctx.overlay = _canvas.dom.overlay.getContext(\"2d\");\n }\n }\n }\n\n function initReaders() {\n config.readers.forEach(function(readerConfig) {\n var reader,\n config = {};\n\n if (typeof readerConfig === 'object') {\n reader = readerConfig.format;\n config = readerConfig.config;\n } else if (typeof readerConfig === 'string') {\n reader = readerConfig;\n }\n _barcodeReaders.push(new readers[reader](config));\n });\n console.log(\"Registered Readers: \" + _barcodeReaders\n .map(function(reader) {return JSON.stringify({format: reader.FORMAT, config: reader.config});})\n .join(', '));\n }\n\n function initConfig() {\n if (typeof document !== 'undefined') {\n var i,\n vis = [{\n node : _canvas.dom.frequency,\n prop : config.showFrequency\n }, {\n node : _canvas.dom.pattern,\n prop : config.showPattern\n }];\n\n for (i = 0; i < vis.length; i++) {\n if (vis[i].prop === true) {\n vis[i].node.style.display = \"block\";\n } else {\n vis[i].node.style.display = \"none\";\n }\n }\n }\n }\n\n /**\n * extend the line on both ends\n * @param {Array} line\n * @param {Number} angle\n */\n function getExtendedLine(line, angle, ext) {\n function extendLine(amount) {\n var extension = {\n y : amount * Math.sin(angle),\n x : amount * Math.cos(angle)\n };\n\n line[0].y -= extension.y;\n line[0].x -= extension.x;\n line[1].y += extension.y;\n line[1].x += extension.x;\n }\n\n // check if inside image\n extendLine(ext);\n while (ext > 1 && (!inputImageWrapper.inImageWithBorder(line[0], 0) || !inputImageWrapper.inImageWithBorder(line[1], 0))) {\n ext -= Math.ceil(ext/2);\n extendLine(-ext);\n }\n return line;\n }\n\n function getLine(box) {\n return [{\n x : (box[1][0] - box[0][0]) / 2 + box[0][0],\n y : (box[1][1] - box[0][1]) / 2 + box[0][1]\n }, {\n x : (box[3][0] - box[2][0]) / 2 + box[2][0],\n y : (box[3][1] - box[2][1]) / 2 + box[2][1]\n }];\n }\n\n function tryDecode(line) {\n var result = null,\n i,\n barcodeLine = Bresenham.getBarcodeLine(inputImageWrapper, line[0], line[1]);\n\n if (config.showFrequency) {\n ImageDebug.drawPath(line, {x: 'x', y: 'y'}, _canvas.ctx.overlay, {color: 'red', lineWidth: 3});\n Bresenham.debug.printFrequency(barcodeLine.line, _canvas.dom.frequency);\n }\n Bresenham.toBinaryLine(barcodeLine);\n if (config.showPattern) {\n Bresenham.debug.printPattern(barcodeLine.line, _canvas.dom.pattern);\n }\n\n for ( i = 0; i < _barcodeReaders.length && result === null; i++) {\n result = _barcodeReaders[i].decodePattern(barcodeLine.line);\n }\n if(result === null){\n return null;\n }\n return {\n codeResult: result,\n barcodeLine: barcodeLine\n };\n\n }\n\n /**\n * This method slices the given area apart and tries to detect a barcode-pattern\n * for each slice. It returns the decoded barcode, or null if nothing was found\n * @param {Array} box\n * @param {Array} line\n * @param {Number} lineAngle\n */\n function tryDecodeBruteForce(box, line, lineAngle) {\n var sideLength = Math.sqrt(Math.pow(box[1][0] - box[0][0], 2) + Math.pow((box[1][1] - box[0][1]), 2)),\n i,\n slices = 16,\n result = null,\n dir,\n extension,\n xdir = Math.sin(lineAngle),\n ydir = Math.cos(lineAngle);\n\n for ( i = 1; i < slices && result === null; i++) {\n // move line perpendicular to angle\n dir = sideLength / slices * i * (i % 2 === 0 ? -1 : 1);\n extension = {\n y : dir * xdir,\n x : dir * ydir\n };\n line[0].y += extension.x;\n line[0].x -= extension.y;\n line[1].y += extension.x;\n line[1].x -= extension.y;\n\n result = tryDecode(line);\n }\n return result;\n }\n\n function getLineLength(line) {\n return Math.sqrt(\n Math.pow(Math.abs(line[1].y - line[0].y), 2) +\n Math.pow(Math.abs(line[1].x - line[0].x), 2));\n }\n\n /**\n * With the help of the configured readers (Code128 or EAN) this function tries to detect a\n * valid barcode pattern within the given area.\n * @param {Object} box The area to search in\n * @returns {Object} the result {codeResult, line, angle, pattern, threshold}\n */\n function decodeFromBoundingBox(box) {\n var line,\n lineAngle,\n ctx = _canvas.ctx.overlay,\n result,\n lineLength;\n\n if (config.drawBoundingBox && ctx) {\n ImageDebug.drawPath(box, {x: 0, y: 1}, ctx, {color: \"blue\", lineWidth: 2});\n }\n\n line = getLine(box);\n lineLength = getLineLength(line);\n lineAngle = Math.atan2(line[1].y - line[0].y, line[1].x - line[0].x);\n line = getExtendedLine(line, lineAngle, Math.floor(lineLength*0.1));\n if(line === null){\n return null;\n }\n\n result = tryDecode(line);\n if(result === null) {\n result = tryDecodeBruteForce(box, line, lineAngle);\n }\n\n if(result === null) {\n return null;\n }\n\n if (result && config.drawScanline && ctx) {\n ImageDebug.drawPath(line, {x: 'x', y: 'y'}, ctx, {color: 'red', lineWidth: 3});\n }\n\n return {\n codeResult : result.codeResult,\n line : line,\n angle : lineAngle,\n pattern : result.barcodeLine.line,\n threshold : result.barcodeLine.threshold\n };\n }\n\n return {\n decodeFromBoundingBox : function(box) {\n return decodeFromBoundingBox(box);\n },\n decodeFromBoundingBoxes : function(boxes) {\n var i, result;\n for ( i = 0; i < boxes.length; i++) {\n result = decodeFromBoundingBox(boxes[i]);\n if (result && result.codeResult) {\n result.box = boxes[i];\n return result;\n }\n }\n },\n setReaders: function(readers) {\n config.readers = readers;\n _barcodeReaders.length = 0;\n initReaders();\n }\n };\n }\n};\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/barcode_decoder.js\n **/","import CVUtils from './cv_utils';\nimport ImageWrapper from './image_wrapper';\n\nvar Bresenham = {};\n\nvar Slope = {\n DIR : {\n UP : 1,\n DOWN : -1\n }\n};\n/**\n * Scans a line of the given image from point p1 to p2 and returns a result object containing\n * gray-scale values (0-255) of the underlying pixels in addition to the min\n * and max values.\n * @param {Object} imageWrapper\n * @param {Object} p1 The start point {x,y}\n * @param {Object} p2 The end point {x,y}\n * @returns {line, min, max}\n */\nBresenham.getBarcodeLine = function(imageWrapper, p1, p2) {\n var x0 = p1.x | 0,\n y0 = p1.y | 0,\n x1 = p2.x | 0,\n y1 = p2.y | 0,\n steep = Math.abs(y1 - y0) > Math.abs(x1 - x0),\n deltax,\n deltay,\n error,\n ystep,\n y,\n tmp,\n x,\n line = [],\n imageData = imageWrapper.data,\n width = imageWrapper.size.x,\n sum = 0,\n val,\n min = 255,\n max = 0;\n\n function read(a, b) {\n val = imageData[b * width + a];\n sum += val;\n min = val < min ? val : min;\n max = val > max ? val : max;\n line.push(val);\n }\n\n if (steep) {\n tmp = x0;\n x0 = y0;\n y0 = tmp;\n\n tmp = x1;\n x1 = y1;\n y1 = tmp;\n }\n if (x0 > x1) {\n tmp = x0;\n x0 = x1;\n x1 = tmp;\n\n tmp = y0;\n y0 = y1;\n y1 = tmp;\n }\n deltax = x1 - x0;\n deltay = Math.abs(y1 - y0);\n error = (deltax / 2) | 0;\n y = y0;\n ystep = y0 < y1 ? 1 : -1;\n for ( x = x0; x < x1; x++) {\n if(steep){\n read(y, x);\n } else {\n read(x, y);\n }\n error = error - deltay;\n if (error < 0) {\n y = y + ystep;\n error = error + deltax;\n }\n }\n\n return {\n line : line,\n min : min,\n max : max\n };\n};\n\nBresenham.toOtsuBinaryLine = function(result) {\n var line = result.line,\n image = new ImageWrapper({x: line.length - 1, y: 1}, line),\n threshold = CVUtils.determineOtsuThreshold(image, 5);\n\n line = CVUtils.sharpenLine(line);\n CVUtils.thresholdImage(image, threshold);\n\n return {\n line: line,\n threshold: threshold\n };\n};\n\n/**\n * Converts the result from getBarcodeLine into a binary representation\n * also considering the frequency and slope of the signal for more robust results\n * @param {Object} result {line, min, max}\n */\nBresenham.toBinaryLine = function(result) {\n\n var min = result.min,\n max = result.max,\n line = result.line,\n slope,\n slope2,\n center = min + (max - min) / 2,\n extrema = [],\n currentDir,\n dir,\n threshold = (max - min) / 12,\n rThreshold = -threshold,\n i,\n j;\n\n // 1. find extrema\n currentDir = line[0] > center ? Slope.DIR.UP : Slope.DIR.DOWN;\n extrema.push({\n pos : 0,\n val : line[0]\n });\n for ( i = 0; i < line.length - 2; i++) {\n slope = (line[i + 1] - line[i]);\n slope2 = (line[i + 2] - line[i + 1]);\n if ((slope + slope2) < rThreshold && line[i + 1] < (center*1.5)) {\n dir = Slope.DIR.DOWN;\n } else if ((slope + slope2) > threshold && line[i + 1] > (center*0.5)) {\n dir = Slope.DIR.UP;\n } else {\n dir = currentDir;\n }\n\n if (currentDir !== dir) {\n extrema.push({\n pos : i,\n val : line[i]\n });\n currentDir = dir;\n }\n }\n extrema.push({\n pos : line.length,\n val : line[line.length - 1]\n });\n\n for ( j = extrema[0].pos; j < extrema[1].pos; j++) {\n line[j] = line[j] > center ? 0 : 1;\n }\n\n // iterate over extrema and convert to binary based on avg between minmax\n for ( i = 1; i < extrema.length - 1; i++) {\n if (extrema[i + 1].val > extrema[i].val) {\n threshold = (extrema[i].val + ((extrema[i + 1].val - extrema[i].val) / 3) * 2) | 0;\n } else {\n threshold = (extrema[i + 1].val + ((extrema[i].val - extrema[i + 1].val) / 3)) | 0;\n }\n\n for ( j = extrema[i].pos; j < extrema[i + 1].pos; j++) {\n line[j] = line[j] > threshold ? 0 : 1;\n }\n }\n\n return {\n line : line,\n threshold : threshold\n };\n};\n\n/**\n * Used for development only\n */\nBresenham.debug = {\n printFrequency: function(line, canvas) {\n var i,\n ctx = canvas.getContext(\"2d\");\n canvas.width = line.length;\n canvas.height = 256;\n\n ctx.beginPath();\n ctx.strokeStyle = \"blue\";\n for ( i = 0; i < line.length; i++) {\n ctx.moveTo(i, 255);\n ctx.lineTo(i, 255 - line[i]);\n }\n ctx.stroke();\n ctx.closePath();\n },\n\n printPattern: function(line, canvas) {\n var ctx = canvas.getContext(\"2d\"), i;\n\n canvas.width = line.length;\n ctx.fillColor = \"black\";\n for ( i = 0; i < line.length; i++) {\n if (line[i] === 1) {\n ctx.fillRect(i, 0, 1, 100);\n }\n }\n }\n};\n\nexport default Bresenham;\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/bresenham.js\n **/","import BarcodeReader from './barcode_reader';\n\nfunction Code128Reader() {\n BarcodeReader.call(this);\n}\n\nvar properties = {\n CODE_SHIFT : {value: 98},\n CODE_C : {value: 99},\n CODE_B : {value: 100},\n CODE_A : {value: 101},\n START_CODE_A : {value: 103},\n START_CODE_B : {value: 104},\n START_CODE_C : {value: 105},\n STOP_CODE : {value: 106},\n MODULO : {value: 11},\n CODE_PATTERN : {value: [\n [2, 1, 2, 2, 2, 2],\n [2, 2, 2, 1, 2, 2],\n [2, 2, 2, 2, 2, 1],\n [1, 2, 1, 2, 2, 3],\n [1, 2, 1, 3, 2, 2],\n [1, 3, 1, 2, 2, 2],\n [1, 2, 2, 2, 1, 3],\n [1, 2, 2, 3, 1, 2],\n [1, 3, 2, 2, 1, 2],\n [2, 2, 1, 2, 1, 3],\n [2, 2, 1, 3, 1, 2],\n [2, 3, 1, 2, 1, 2],\n [1, 1, 2, 2, 3, 2],\n [1, 2, 2, 1, 3, 2],\n [1, 2, 2, 2, 3, 1],\n [1, 1, 3, 2, 2, 2],\n [1, 2, 3, 1, 2, 2],\n [1, 2, 3, 2, 2, 1],\n [2, 2, 3, 2, 1, 1],\n [2, 2, 1, 1, 3, 2],\n [2, 2, 1, 2, 3, 1],\n [2, 1, 3, 2, 1, 2],\n [2, 2, 3, 1, 1, 2],\n [3, 1, 2, 1, 3, 1],\n [3, 1, 1, 2, 2, 2],\n [3, 2, 1, 1, 2, 2],\n [3, 2, 1, 2, 2, 1],\n [3, 1, 2, 2, 1, 2],\n [3, 2, 2, 1, 1, 2],\n [3, 2, 2, 2, 1, 1],\n [2, 1, 2, 1, 2, 3],\n [2, 1, 2, 3, 2, 1],\n [2, 3, 2, 1, 2, 1],\n [1, 1, 1, 3, 2, 3],\n [1, 3, 1, 1, 2, 3],\n [1, 3, 1, 3, 2, 1],\n [1, 1, 2, 3, 1, 3],\n [1, 3, 2, 1, 1, 3],\n [1, 3, 2, 3, 1, 1],\n [2, 1, 1, 3, 1, 3],\n [2, 3, 1, 1, 1, 3],\n [2, 3, 1, 3, 1, 1],\n [1, 1, 2, 1, 3, 3],\n [1, 1, 2, 3, 3, 1],\n [1, 3, 2, 1, 3, 1],\n [1, 1, 3, 1, 2, 3],\n [1, 1, 3, 3, 2, 1],\n [1, 3, 3, 1, 2, 1],\n [3, 1, 3, 1, 2, 1],\n [2, 1, 1, 3, 3, 1],\n [2, 3, 1, 1, 3, 1],\n [2, 1, 3, 1, 1, 3],\n [2, 1, 3, 3, 1, 1],\n [2, 1, 3, 1, 3, 1],\n [3, 1, 1, 1, 2, 3],\n [3, 1, 1, 3, 2, 1],\n [3, 3, 1, 1, 2, 1],\n [3, 1, 2, 1, 1, 3],\n [3, 1, 2, 3, 1, 1],\n [3, 3, 2, 1, 1, 1],\n [3, 1, 4, 1, 1, 1],\n [2, 2, 1, 4, 1, 1],\n [4, 3, 1, 1, 1, 1],\n [1, 1, 1, 2, 2, 4],\n [1, 1, 1, 4, 2, 2],\n [1, 2, 1, 1, 2, 4],\n [1, 2, 1, 4, 2, 1],\n [1, 4, 1, 1, 2, 2],\n [1, 4, 1, 2, 2, 1],\n [1, 1, 2, 2, 1, 4],\n [1, 1, 2, 4, 1, 2],\n [1, 2, 2, 1, 1, 4],\n [1, 2, 2, 4, 1, 1],\n [1, 4, 2, 1, 1, 2],\n [1, 4, 2, 2, 1, 1],\n [2, 4, 1, 2, 1, 1],\n [2, 2, 1, 1, 1, 4],\n [4, 1, 3, 1, 1, 1],\n [2, 4, 1, 1, 1, 2],\n [1, 3, 4, 1, 1, 1],\n [1, 1, 1, 2, 4, 2],\n [1, 2, 1, 1, 4, 2],\n [1, 2, 1, 2, 4, 1],\n [1, 1, 4, 2, 1, 2],\n [1, 2, 4, 1, 1, 2],\n [1, 2, 4, 2, 1, 1],\n [4, 1, 1, 2, 1, 2],\n [4, 2, 1, 1, 1, 2],\n [4, 2, 1, 2, 1, 1],\n [2, 1, 2, 1, 4, 1],\n [2, 1, 4, 1, 2, 1],\n [4, 1, 2, 1, 2, 1],\n [1, 1, 1, 1, 4, 3],\n [1, 1, 1, 3, 4, 1],\n [1, 3, 1, 1, 4, 1],\n [1, 1, 4, 1, 1, 3],\n [1, 1, 4, 3, 1, 1],\n [4, 1, 1, 1, 1, 3],\n [4, 1, 1, 3, 1, 1],\n [1, 1, 3, 1, 4, 1],\n [1, 1, 4, 1, 3, 1],\n [3, 1, 1, 1, 4, 1],\n [4, 1, 1, 1, 3, 1],\n [2, 1, 1, 4, 1, 2],\n [2, 1, 1, 2, 1, 4],\n [2, 1, 1, 2, 3, 2],\n [2, 3, 3, 1, 1, 1, 2]\n ]},\n SINGLE_CODE_ERROR: {value: 1},\n AVG_CODE_ERROR: {value: 0.5},\n FORMAT: {value: \"code_128\", writeable: false}\n};\n\nCode128Reader.prototype = Object.create(BarcodeReader.prototype, properties);\nCode128Reader.prototype.constructor = Code128Reader;\n\nCode128Reader.prototype._decodeCode = function(start) {\n var counter = [0, 0, 0, 0, 0, 0],\n i,\n self = this,\n offset = start,\n isWhite = !self._row[offset],\n counterPos = 0,\n bestMatch = {\n error : Number.MAX_VALUE,\n code : -1,\n start : start,\n end : start\n },\n code,\n error,\n normalized;\n\n for ( i = offset; i < self._row.length; i++) {\n if (self._row[i] ^ isWhite) {\n counter[counterPos]++;\n } else {\n if (counterPos === counter.length - 1) {\n normalized = self._normalize(counter);\n if (normalized) {\n for (code = 0; code < self.CODE_PATTERN.length; code++) {\n error = self._matchPattern(normalized, self.CODE_PATTERN[code]);\n if (error < bestMatch.error) {\n bestMatch.code = code;\n bestMatch.error = error;\n }\n }\n bestMatch.end = i;\n return bestMatch;\n }\n } else {\n counterPos++;\n }\n counter[counterPos] = 1;\n isWhite = !isWhite;\n }\n }\n return null;\n};\n\nCode128Reader.prototype._findStart = function() {\n var counter = [0, 0, 0, 0, 0, 0],\n i,\n self = this,\n offset = self._nextSet(self._row),\n isWhite = false,\n counterPos = 0,\n bestMatch = {\n error : Number.MAX_VALUE,\n code : -1,\n start : 0,\n end : 0\n },\n code,\n error,\n j,\n sum,\n normalized;\n\n for ( i = offset; i < self._row.length; i++) {\n if (self._row[i] ^ isWhite) {\n counter[counterPos]++;\n } else {\n if (counterPos === counter.length - 1) {\n sum = 0;\n for ( j = 0; j < counter.length; j++) {\n sum += counter[j];\n }\n normalized = self._normalize(counter);\n if (normalized) {\n for (code = self.START_CODE_A; code <= self.START_CODE_C; code++) {\n error = self._matchPattern(normalized, self.CODE_PATTERN[code]);\n if (error < bestMatch.error) {\n bestMatch.code = code;\n bestMatch.error = error;\n }\n }\n if (bestMatch.error < self.AVG_CODE_ERROR) {\n bestMatch.start = i - sum;\n bestMatch.end = i;\n return bestMatch;\n }\n }\n\n for ( j = 0; j < 4; j++) {\n counter[j] = counter[j + 2];\n }\n counter[4] = 0;\n counter[5] = 0;\n counterPos--;\n } else {\n counterPos++;\n }\n counter[counterPos] = 1;\n isWhite = !isWhite;\n }\n }\n return null;\n};\n\nCode128Reader.prototype._decode = function() {\n var self = this,\n startInfo = self._findStart(),\n code = null,\n done = false,\n result = [],\n multiplier = 0,\n checksum = 0,\n codeset,\n rawResult = [],\n decodedCodes = [],\n shiftNext = false,\n unshift,\n lastCharacterWasPrintable;\n\n if (startInfo === null) {\n return null;\n }\n code = {\n code : startInfo.code,\n start : startInfo.start,\n end : startInfo.end\n };\n decodedCodes.push(code);\n checksum = code.code;\n switch(code.code) {\n case self.START_CODE_A:\n codeset = self.CODE_A;\n break;\n case self.START_CODE_B:\n codeset = self.CODE_B;\n break;\n case self.START_CODE_C:\n codeset = self.CODE_C;\n break;\n default:\n return null;\n }\n\n while (!done) {\n unshift = shiftNext;\n shiftNext = false;\n code = self._decodeCode(code.end);\n if (code !== null) {\n if (code.code !== self.STOP_CODE) {\n rawResult.push(code.code);\n multiplier++;\n checksum += multiplier * code.code;\n }\n decodedCodes.push(code);\n\n switch(codeset) {\n case self.CODE_A:\n if (code.code < 64) {\n result.push(String.fromCharCode(32 + code.code));\n } else if (code.code < 96) {\n result.push(String.fromCharCode(code.code - 64));\n } else {\n switch (code.code) {\n case self.CODE_SHIFT:\n shiftNext = true;\n codeset = self.CODE_B;\n break;\n case self.CODE_B:\n codeset = self.CODE_B;\n break;\n case self.CODE_C:\n codeset = self.CODE_C;\n break;\n case self.STOP_CODE:\n done = true;\n break;\n }\n }\n break;\n case self.CODE_B:\n if (code.code < 96) {\n result.push(String.fromCharCode(32 + code.code));\n } else {\n if (code.code != self.STOP_CODE) {\n lastCharacterWasPrintable = false;\n }\n switch (code.code) {\n case self.CODE_SHIFT:\n shiftNext = true;\n codeset = self.CODE_A;\n break;\n case self.CODE_A:\n codeset = self.CODE_A;\n break;\n case self.CODE_C:\n codeset = self.CODE_C;\n break;\n case self.STOP_CODE:\n done = true;\n break;\n }\n }\n break;\n case self.CODE_C:\n if (code.code < 100) {\n result.push(code.code < 10 ? \"0\" + code.code : code.code);\n }\n switch (code.code) {\n case self.CODE_A:\n codeset = self.CODE_A;\n break;\n case self.CODE_B:\n codeset = self.CODE_B;\n break;\n case self.STOP_CODE:\n done = true;\n break;\n }\n break;\n }\n } else {\n done = true;\n }\n if (unshift) {\n codeset = codeset == self.CODE_A ? self.CODE_B : self.CODE_A;\n }\n }\n\n if (code === null) {\n return null;\n }\n\n // find end bar\n code.end = self._nextUnset(self._row, code.end);\n if(!self._verifyTrailingWhitespace(code)){\n return null;\n }\n\n // checksum\n // Does not work correctly yet!!! startcode - endcode?\n checksum -= multiplier * rawResult[rawResult.length - 1];\n if (checksum % 103 != rawResult[rawResult.length - 1]) {\n return null;\n }\n\n if (!result.length) {\n return null;\n }\n\n // remove last code from result (checksum)\n result.splice(result.length - 1, 1);\n\n\n\n return {\n code : result.join(\"\"),\n start : startInfo.start,\n end : code.end,\n codeset : codeset,\n startInfo : startInfo,\n decodedCodes : decodedCodes,\n endInfo : code\n };\n};\n\n\nBarcodeReader.prototype._verifyTrailingWhitespace = function(endInfo) {\n var self = this,\n trailingWhitespaceEnd;\n\n trailingWhitespaceEnd = endInfo.end + ((endInfo.end - endInfo.start) / 2);\n if (trailingWhitespaceEnd < self._row.length) {\n if (self._matchRange(endInfo.end, trailingWhitespaceEnd, 0)) {\n return endInfo;\n }\n }\n return null;\n};\n\nexport default Code128Reader;\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/code_128_reader.js\n **/","function BarcodeReader(config) {\n this._row = [];\n this.config = config || {};\n return this;\n}\n\nBarcodeReader.prototype._nextUnset = function(line, start) {\n var i;\n\n if (start === undefined) {\n start = 0;\n }\n for (i = start; i < line.length; i++) {\n if (!line[i]) {\n return i;\n }\n }\n return line.length;\n};\n\nBarcodeReader.prototype._matchPattern = function(counter, code) {\n var i,\n error = 0,\n singleError = 0,\n modulo = this.MODULO,\n maxSingleError = this.SINGLE_CODE_ERROR || 1;\n\n for (i = 0; i < counter.length; i++) {\n singleError = Math.abs(code[i] - counter[i]);\n if (singleError > maxSingleError) {\n return Number.MAX_VALUE;\n }\n error += singleError;\n }\n return error/modulo;\n};\n\nBarcodeReader.prototype._nextSet = function(line, offset) {\n var i;\n\n offset = offset || 0;\n for (i = offset; i < line.length; i++) {\n if (line[i]) {\n return i;\n }\n }\n return line.length;\n};\n\nBarcodeReader.prototype._normalize = function(counter, modulo) {\n var i,\n self = this,\n sum = 0,\n ratio,\n numOnes = 0,\n normalized = [],\n norm = 0;\n\n if (!modulo) {\n modulo = self.MODULO;\n }\n for (i = 0; i < counter.length; i++) {\n if (counter[i] === 1) {\n numOnes++;\n } else {\n sum += counter[i];\n }\n }\n ratio = sum / (modulo - numOnes);\n if (ratio > 1.0) {\n for (i = 0; i < counter.length; i++) {\n norm = counter[i] === 1 ? counter[i] : counter[i] / ratio;\n normalized.push(norm);\n }\n } else {\n ratio = (sum + numOnes)/modulo;\n for (i = 0; i < counter.length; i++) {\n norm = counter[i] / ratio;\n normalized.push(norm);\n }\n }\n return normalized;\n};\n\nBarcodeReader.prototype._matchTrace = function(cmpCounter, epsilon) {\n var counter = [],\n i,\n self = this,\n offset = self._nextSet(self._row),\n isWhite = !self._row[offset],\n counterPos = 0,\n bestMatch = {\n error : Number.MAX_VALUE,\n code : -1,\n start : 0\n },\n error;\n\n if (cmpCounter) {\n for ( i = 0; i < cmpCounter.length; i++) {\n counter.push(0);\n }\n for ( i = offset; i < self._row.length; i++) {\n if (self._row[i] ^ isWhite) {\n counter[counterPos]++;\n } else {\n if (counterPos === counter.length - 1) {\n error = self._matchPattern(counter, cmpCounter);\n\n if (error < epsilon) {\n bestMatch.start = i - offset;\n bestMatch.end = i;\n bestMatch.counter = counter;\n return bestMatch;\n } else {\n return null;\n }\n } else {\n counterPos++;\n }\n counter[counterPos] = 1;\n isWhite = !isWhite;\n }\n }\n } else {\n counter.push(0);\n for ( i = offset; i < self._row.length; i++) {\n if (self._row[i] ^ isWhite) {\n counter[counterPos]++;\n } else {\n counterPos++;\n counter.push(0);\n counter[counterPos] = 1;\n isWhite = !isWhite;\n }\n }\n }\n\n // if cmpCounter was not given\n bestMatch.start = offset;\n bestMatch.end = self._row.length - 1;\n bestMatch.counter = counter;\n return bestMatch;\n};\n\nBarcodeReader.prototype.decodePattern = function(pattern) {\n var self = this,\n result;\n\n self._row = pattern;\n result = self._decode();\n if (result === null) {\n self._row.reverse();\n result = self._decode();\n if (result) {\n result.direction = BarcodeReader.DIRECTION.REVERSE;\n result.start = self._row.length - result.start;\n result.end = self._row.length - result.end;\n }\n } else {\n result.direction = BarcodeReader.DIRECTION.FORWARD;\n }\n if (result) {\n result.format = self.FORMAT;\n }\n return result;\n};\n\nBarcodeReader.prototype._matchRange = function(start, end, value) {\n var i;\n\n start = start < 0 ? 0 : start;\n for (i = start; i < end; i++) {\n if (this._row[i] !== value) {\n return false;\n }\n }\n return true;\n};\n\nBarcodeReader.prototype._fillCounters = function(offset, end, isWhite) {\n var self = this,\n counterPos = 0,\n i,\n counters = [];\n\n isWhite = (typeof isWhite !== 'undefined') ? isWhite : true;\n offset = (typeof offset !== 'undefined') ? offset : self._nextUnset(self._row);\n end = end || self._row.length;\n\n counters[counterPos] = 0;\n for (i = offset; i < end; i++) {\n if (self._row[i] ^ isWhite) {\n counters[counterPos]++;\n } else {\n counterPos++;\n counters[counterPos] = 1;\n isWhite = !isWhite;\n }\n }\n return counters;\n};\n\nObject.defineProperty(BarcodeReader.prototype, \"FORMAT\", {\n value: 'unknown',\n writeable: false\n});\n\nBarcodeReader.DIRECTION = {\n FORWARD : 1,\n REVERSE : -1\n};\n\nBarcodeReader.Exception = {\n StartNotFoundException : \"Start-Info was not found!\",\n CodeNotFoundException : \"Code could not be found!\",\n PatternNotFoundException : \"Pattern could not be found!\"\n};\n\nBarcodeReader.CONFIG_KEYS = {};\n\nexport default BarcodeReader;\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/barcode_reader.js\n **/","import BarcodeReader from './barcode_reader';\n\nfunction EANReader(opts) {\n BarcodeReader.call(this, opts);\n}\n\nvar properties = {\n CODE_L_START : {value: 0},\n MODULO : {value: 7},\n CODE_G_START : {value: 10},\n START_PATTERN : {value: [1 / 3 * 7, 1 / 3 * 7, 1 / 3 * 7]},\n STOP_PATTERN : {value: [1 / 3 * 7, 1 / 3 * 7, 1 / 3 * 7]},\n MIDDLE_PATTERN : {value: [1 / 5 * 7, 1 / 5 * 7, 1 / 5 * 7, 1 / 5 * 7, 1 / 5 * 7]},\n CODE_PATTERN : {value: [\n [3, 2, 1, 1],\n [2, 2, 2, 1],\n [2, 1, 2, 2],\n [1, 4, 1, 1],\n [1, 1, 3, 2],\n [1, 2, 3, 1],\n [1, 1, 1, 4],\n [1, 3, 1, 2],\n [1, 2, 1, 3],\n [3, 1, 1, 2],\n [1, 1, 2, 3],\n [1, 2, 2, 2],\n [2, 2, 1, 2],\n [1, 1, 4, 1],\n [2, 3, 1, 1],\n [1, 3, 2, 1],\n [4, 1, 1, 1],\n [2, 1, 3, 1],\n [3, 1, 2, 1],\n [2, 1, 1, 3]\n ]},\n CODE_FREQUENCY : {value: [0, 11, 13, 14, 19, 25, 28, 21, 22, 26]},\n SINGLE_CODE_ERROR: {value: 0.67},\n AVG_CODE_ERROR: {value: 0.27},\n FORMAT: {value: \"ean_13\", writeable: false}\n};\n\nEANReader.prototype = Object.create(BarcodeReader.prototype, properties);\nEANReader.prototype.constructor = EANReader;\n\nEANReader.prototype._decodeCode = function(start, coderange) {\n var counter = [0, 0, 0, 0],\n i,\n self = this,\n offset = start,\n isWhite = !self._row[offset],\n counterPos = 0,\n bestMatch = {\n error : Number.MAX_VALUE,\n code : -1,\n start : start,\n end : start\n },\n code,\n error,\n normalized;\n\n if (!coderange) {\n coderange = self.CODE_PATTERN.length;\n }\n\n for ( i = offset; i < self._row.length; i++) {\n if (self._row[i] ^ isWhite) {\n counter[counterPos]++;\n } else {\n if (counterPos === counter.length - 1) {\n normalized = self._normalize(counter);\n if (normalized) {\n for (code = 0; code < coderange; code++) {\n error = self._matchPattern(normalized, self.CODE_PATTERN[code]);\n if (error < bestMatch.error) {\n bestMatch.code = code;\n bestMatch.error = error;\n }\n }\n bestMatch.end = i;\n if (bestMatch.error > self.AVG_CODE_ERROR) {\n return null;\n }\n return bestMatch;\n }\n } else {\n counterPos++;\n }\n counter[counterPos] = 1;\n isWhite = !isWhite;\n }\n }\n return null;\n};\n\nEANReader.prototype._findPattern = function(pattern, offset, isWhite, tryHarder, epsilon) {\n var counter = [],\n self = this,\n i,\n counterPos = 0,\n bestMatch = {\n error : Number.MAX_VALUE,\n code : -1,\n start : 0,\n end : 0\n },\n error,\n j,\n sum,\n normalized;\n\n if (!offset) {\n offset = self._nextSet(self._row);\n }\n\n if (isWhite === undefined) {\n isWhite = false;\n }\n\n if (tryHarder === undefined) {\n tryHarder = true;\n }\n\n if ( epsilon === undefined) {\n epsilon = self.AVG_CODE_ERROR;\n }\n\n for ( i = 0; i < pattern.length; i++) {\n counter[i] = 0;\n }\n\n for ( i = offset; i < self._row.length; i++) {\n if (self._row[i] ^ isWhite) {\n counter[counterPos]++;\n } else {\n if (counterPos === counter.length - 1) {\n sum = 0;\n for ( j = 0; j < counter.length; j++) {\n sum += counter[j];\n }\n normalized = self._normalize(counter);\n if (normalized) {\n error = self._matchPattern(normalized, pattern);\n\n if (error < epsilon) {\n bestMatch.error = error;\n bestMatch.start = i - sum;\n bestMatch.end = i;\n return bestMatch;\n }\n }\n if (tryHarder) {\n for ( j = 0; j < counter.length - 2; j++) {\n counter[j] = counter[j + 2];\n }\n counter[counter.length - 2] = 0;\n counter[counter.length - 1] = 0;\n counterPos--;\n } else {\n return null;\n }\n } else {\n counterPos++;\n }\n counter[counterPos] = 1;\n isWhite = !isWhite;\n }\n }\n return null;\n};\n\nEANReader.prototype._findStart = function() {\n var self = this,\n leadingWhitespaceStart,\n offset = self._nextSet(self._row),\n startInfo;\n\n while(!startInfo) {\n startInfo = self._findPattern(self.START_PATTERN, offset);\n if (!startInfo) {\n return null;\n }\n leadingWhitespaceStart = startInfo.start - (startInfo.end - startInfo.start);\n if (leadingWhitespaceStart >= 0) {\n if (self._matchRange(leadingWhitespaceStart, startInfo.start, 0)) {\n return startInfo;\n }\n }\n offset = startInfo.end;\n startInfo = null;\n }\n};\n\nEANReader.prototype._verifyTrailingWhitespace = function(endInfo) {\n var self = this,\n trailingWhitespaceEnd;\n\n trailingWhitespaceEnd = endInfo.end + (endInfo.end - endInfo.start);\n if (trailingWhitespaceEnd < self._row.length) {\n if (self._matchRange(endInfo.end, trailingWhitespaceEnd, 0)) {\n return endInfo;\n }\n }\n return null;\n};\n\nEANReader.prototype._findEnd = function(offset, isWhite) {\n var self = this,\n endInfo = self._findPattern(self.STOP_PATTERN, offset, isWhite, false);\n\n return endInfo !== null ? self._verifyTrailingWhitespace(endInfo) : null;\n};\n\nEANReader.prototype._calculateFirstDigit = function(codeFrequency) {\n var i,\n self = this;\n\n for ( i = 0; i < self.CODE_FREQUENCY.length; i++) {\n if (codeFrequency === self.CODE_FREQUENCY[i]) {\n return i;\n }\n }\n return null;\n};\n\nEANReader.prototype._decodePayload = function(code, result, decodedCodes) {\n var i,\n self = this,\n codeFrequency = 0x0,\n firstDigit;\n\n for ( i = 0; i < 6; i++) {\n code = self._decodeCode(code.end);\n if (!code) {\n return null;\n }\n if (code.code >= self.CODE_G_START) {\n code.code = code.code - self.CODE_G_START;\n codeFrequency |= 1 << (5 - i);\n } else {\n codeFrequency |= 0 << (5 - i);\n }\n result.push(code.code);\n decodedCodes.push(code);\n }\n\n firstDigit = self._calculateFirstDigit(codeFrequency);\n if (firstDigit === null) {\n return null;\n }\n result.unshift(firstDigit);\n\n code = self._findPattern(self.MIDDLE_PATTERN, code.end, true, false);\n if (code === null) {\n return null;\n }\n decodedCodes.push(code);\n\n for ( i = 0; i < 6; i++) {\n code = self._decodeCode(code.end, self.CODE_G_START);\n if (!code) {\n return null;\n }\n decodedCodes.push(code);\n result.push(code.code);\n }\n\n return code;\n};\n\nEANReader.prototype._decode = function() {\n var startInfo,\n self = this,\n code,\n result = [],\n decodedCodes = [];\n\n startInfo = self._findStart();\n if (!startInfo) {\n return null;\n }\n code = {\n code : startInfo.code,\n start : startInfo.start,\n end : startInfo.end\n };\n decodedCodes.push(code);\n code = self._decodePayload(code, result, decodedCodes);\n if (!code) {\n return null;\n }\n code = self._findEnd(code.end, false);\n if (!code){\n return null;\n }\n\n decodedCodes.push(code);\n\n // Checksum\n if (!self._checksum(result)) {\n return null;\n }\n\n return {\n code : result.join(\"\"),\n start : startInfo.start,\n end : code.end,\n codeset : \"\",\n startInfo : startInfo,\n decodedCodes : decodedCodes\n };\n};\n\nEANReader.prototype._checksum = function(result) {\n var sum = 0, i;\n\n for ( i = result.length - 2; i >= 0; i -= 2) {\n sum += result[i];\n }\n sum *= 3;\n for ( i = result.length - 1; i >= 0; i -= 2) {\n sum += result[i];\n }\n return sum % 10 === 0;\n};\n\nexport default (EANReader);\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/ean_reader.js\n **/","import BarcodeReader from './barcode_reader';\nimport ArrayHelper from './array_helper';\n\nfunction Code39Reader() {\n BarcodeReader.call(this);\n}\n\nvar properties = {\n ALPHABETH_STRING: {value: \"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ-. *$/+%\"},\n ALPHABET: {value: [48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 45, 46, 32, 42, 36, 47, 43, 37]},\n CHARACTER_ENCODINGS: {value: [0x034, 0x121, 0x061, 0x160, 0x031, 0x130, 0x070, 0x025, 0x124, 0x064, 0x109, 0x049, 0x148, 0x019, 0x118, 0x058, 0x00D, 0x10C, 0x04C, 0x01C, 0x103, 0x043, 0x142, 0x013, 0x112, 0x052, 0x007, 0x106, 0x046, 0x016, 0x181, 0x0C1, 0x1C0, 0x091, 0x190, 0x0D0, 0x085, 0x184, 0x0C4, 0x094, 0x0A8, 0x0A2, 0x08A, 0x02A]},\n ASTERISK: {value: 0x094},\n FORMAT: {value: \"code_39\", writeable: false}\n};\n\nCode39Reader.prototype = Object.create(BarcodeReader.prototype, properties);\nCode39Reader.prototype.constructor = Code39Reader;\n\nCode39Reader.prototype._toCounters = function(start, counter) {\n var self = this,\n numCounters = counter.length,\n end = self._row.length,\n isWhite = !self._row[start],\n i,\n counterPos = 0;\n\n ArrayHelper.init(counter, 0);\n\n for ( i = start; i < end; i++) {\n if (self._row[i] ^ isWhite) {\n counter[counterPos]++;\n } else {\n counterPos++;\n if (counterPos === numCounters) {\n break;\n } else {\n counter[counterPos] = 1;\n isWhite = !isWhite;\n }\n }\n }\n\n return counter;\n};\n\nCode39Reader.prototype._decode = function() {\n var self = this,\n counters = [0,0,0,0,0,0,0,0,0],\n result = [],\n start = self._findStart(),\n decodedChar,\n lastStart,\n pattern,\n nextStart;\n\n if (!start) {\n return null;\n }\n nextStart = self._nextSet(self._row, start.end);\n\n do {\n counters = self._toCounters(nextStart, counters);\n pattern = self._toPattern(counters);\n if (pattern < 0) {\n return null;\n }\n decodedChar = self._patternToChar(pattern);\n if (decodedChar < 0){\n return null;\n }\n result.push(decodedChar);\n lastStart = nextStart;\n nextStart += ArrayHelper.sum(counters);\n nextStart = self._nextSet(self._row, nextStart);\n } while(decodedChar !== '*');\n result.pop();\n\n if (!result.length) {\n return null;\n }\n\n if(!self._verifyTrailingWhitespace(lastStart, nextStart, counters)) {\n return null;\n }\n\n return {\n code : result.join(\"\"),\n start : start.start,\n end : nextStart,\n startInfo : start,\n decodedCodes : result\n };\n};\n\nCode39Reader.prototype._verifyTrailingWhitespace = function(lastStart, nextStart, counters) {\n var trailingWhitespaceEnd,\n patternSize = ArrayHelper.sum(counters);\n\n trailingWhitespaceEnd = nextStart - lastStart - patternSize;\n if ((trailingWhitespaceEnd * 3) >= patternSize) {\n return true;\n }\n return false;\n};\n\nCode39Reader.prototype._patternToChar = function(pattern) {\n var i,\n self = this;\n\n for (i = 0; i < self.CHARACTER_ENCODINGS.length; i++) {\n if (self.CHARACTER_ENCODINGS[i] === pattern) {\n return String.fromCharCode(self.ALPHABET[i]);\n }\n }\n};\n\nCode39Reader.prototype._findNextWidth = function(counters, current) {\n var i,\n minWidth = Number.MAX_VALUE;\n\n for (i = 0; i < counters.length; i++) {\n if (counters[i] < minWidth && counters[i] > current) {\n minWidth = counters[i];\n }\n }\n\n return minWidth;\n};\n\nCode39Reader.prototype._toPattern = function(counters) {\n var numCounters = counters.length,\n maxNarrowWidth = 0,\n numWideBars = numCounters,\n wideBarWidth = 0,\n self = this,\n pattern,\n i;\n\n while(numWideBars > 3) {\n maxNarrowWidth = self._findNextWidth(counters, maxNarrowWidth);\n numWideBars = 0;\n pattern = 0;\n for (i = 0; i < numCounters; i++) {\n if (counters[i] > maxNarrowWidth) {\n pattern |= 1 << (numCounters - 1 - i);\n numWideBars++;\n wideBarWidth += counters[i];\n }\n }\n\n if (numWideBars === 3) {\n for (i = 0; i < numCounters && numWideBars > 0; i++) {\n if (counters[i] > maxNarrowWidth) {\n numWideBars--;\n if ((counters[i] * 2) >= wideBarWidth) {\n return -1;\n }\n }\n }\n return pattern;\n }\n }\n return -1;\n};\n\nCode39Reader.prototype._findStart = function() {\n var self = this,\n offset = self._nextSet(self._row),\n patternStart = offset,\n counter = [0,0,0,0,0,0,0,0,0],\n counterPos = 0,\n isWhite = false,\n i,\n j,\n whiteSpaceMustStart;\n\n for ( i = offset; i < self._row.length; i++) {\n if (self._row[i] ^ isWhite) {\n counter[counterPos]++;\n } else {\n if (counterPos === counter.length - 1) {\n\n // find start pattern\n if (self._toPattern(counter) === self.ASTERISK) {\n whiteSpaceMustStart = Math.floor(Math.max(0, patternStart - ((i - patternStart) / 4)));\n if (self._matchRange(whiteSpaceMustStart, patternStart, 0)) {\n return {\n start: patternStart,\n end: i\n };\n }\n }\n\n patternStart += counter[0] + counter[1];\n for ( j = 0; j < 7; j++) {\n counter[j] = counter[j + 2];\n }\n counter[7] = 0;\n counter[8] = 0;\n counterPos--;\n } else {\n counterPos++;\n }\n counter[counterPos] = 1;\n isWhite = !isWhite;\n }\n }\n return null;\n};\n\nexport default Code39Reader;\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/code_39_reader.js\n **/","import Code39Reader from './code_39_reader';\n\nfunction Code39VINReader() {\n Code39Reader.call(this);\n}\n\nvar patterns = {\n IOQ: /[IOQ]/g,\n AZ09: /[A-Z0-9]{17}/\n};\n\nCode39VINReader.prototype = Object.create(Code39Reader.prototype);\nCode39VINReader.prototype.constructor = Code39VINReader;\n\n// Cribbed from:\n// /~https://github.com/zxing/zxing/blob/master/core/src/main/java/com/google/zxing/client/result/VINResultParser.java\nCode39VINReader.prototype._decode = function() {\n var result = Code39Reader.prototype._decode.apply(this);\n if (!result) {\n return null;\n }\n\n var code = result.code;\n\n if (!code) {\n return;\n }\n\n code = code.replace(patterns.IOQ, '');\n\n if (!code.match(patterns.AZ09)) {\n console.log('Failed AZ09 pattern code:', code);\n return null;\n }\n\n if (!this._checkChecksum(code)) {\n return null;\n }\n\n result.code = code;\n return result;\n};\n\nCode39VINReader.prototype._checkChecksum = function(code) {\n // TODO\n return !!code;\n};\n\nexport default Code39VINReader;\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/code_39_vin_reader.js\n **/","import BarcodeReader from './barcode_reader';\n\nfunction CodabarReader() {\n BarcodeReader.call(this);\n this._counters = [];\n}\n\nvar properties = {\n ALPHABETH_STRING: {value: \"0123456789-$:/.+ABCD\"},\n ALPHABET: {value: [48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 45, 36, 58, 47, 46, 43, 65, 66, 67, 68]},\n CHARACTER_ENCODINGS: {value: [0x003, 0x006, 0x009, 0x060, 0x012, 0x042, 0x021, 0x024, 0x030, 0x048, 0x00c, 0x018, 0x045, 0x051, 0x054, 0x015, 0x01A, 0x029, 0x00B, 0x00E]},\n START_END: {value: [0x01A, 0x029, 0x00B, 0x00E]},\n MIN_ENCODED_CHARS: {value: 4},\n MAX_ACCEPTABLE: {value: 2.0},\n PADDING: {value: 1.5},\n FORMAT: {value: \"codabar\", writeable: false}\n};\n\nCodabarReader.prototype = Object.create(BarcodeReader.prototype, properties);\nCodabarReader.prototype.constructor = CodabarReader;\n\nCodabarReader.prototype._decode = function() {\n var self = this,\n result = [],\n start,\n decodedChar,\n pattern,\n nextStart,\n end;\n\n this._counters = self._fillCounters();\n start = self._findStart();\n if (!start) {\n return null;\n }\n nextStart = start.startCounter;\n\n do {\n pattern = self._toPattern(nextStart);\n if (pattern < 0) {\n return null;\n }\n decodedChar = self._patternToChar(pattern);\n if (decodedChar < 0){\n return null;\n }\n result.push(decodedChar);\n nextStart += 8;\n if (result.length > 1 && self._isStartEnd(pattern)) {\n break;\n }\n } while(nextStart < self._counters.length);\n\n // verify end\n if ((result.length - 2) < self.MIN_ENCODED_CHARS || !self._isStartEnd(pattern)) {\n return null;\n }\n\n // verify end white space\n if (!self._verifyWhitespace(start.startCounter, nextStart - 8)){\n return null;\n }\n\n if (!self._validateResult(result, start.startCounter)){\n return null;\n }\n\n nextStart = nextStart > self._counters.length ? self._counters.length : nextStart;\n end = start.start + self._sumCounters(start.startCounter, nextStart - 8);\n\n return {\n code : result.join(\"\"),\n start : start.start,\n end : end,\n startInfo : start,\n decodedCodes : result\n };\n};\n\nCodabarReader.prototype._verifyWhitespace = function(startCounter, endCounter) {\n if ((startCounter - 1 <= 0) || this._counters[startCounter-1] >= (this._calculatePatternLength(startCounter) / 2.0)) {\n if ((endCounter + 8 >= this._counters.length) || this._counters[endCounter+7] >= (this._calculatePatternLength(endCounter) / 2.0)) {\n return true;\n }\n }\n return false;\n};\n\nCodabarReader.prototype._calculatePatternLength = function(offset) {\n var i,\n sum = 0;\n\n for (i = offset; i < offset + 7; i++) {\n sum += this._counters[i];\n }\n\n return sum;\n};\n\nCodabarReader.prototype._thresholdResultPattern = function(result, startCounter){\n var self = this,\n categorization = {\n space: {\n narrow: { size: 0, counts: 0, min: 0, max: Number.MAX_VALUE},\n wide: {size: 0, counts: 0, min: 0, max: Number.MAX_VALUE}\n },\n bar: {\n narrow: { size: 0, counts: 0, min: 0, max: Number.MAX_VALUE},\n wide: { size: 0, counts: 0, min: 0, max: Number.MAX_VALUE}\n }\n },\n kind,\n cat,\n i,\n j,\n pos = startCounter,\n pattern;\n\n for (i = 0; i < result.length; i++){\n pattern = self._charToPattern(result[i]);\n for (j = 6; j >= 0; j--) {\n kind = (j & 1) === 2 ? categorization.bar : categorization.space;\n cat = (pattern & 1) === 1 ? kind.wide : kind.narrow;\n cat.size += self._counters[pos + j];\n cat.counts++;\n pattern >>= 1;\n }\n pos += 8;\n }\n\n [\"space\", \"bar\"].forEach(function(key) {\n var kind = categorization[key];\n kind.wide.min = Math.floor((kind.narrow.size/kind.narrow.counts + kind.wide.size / kind.wide.counts) / 2);\n kind.narrow.max = Math.ceil(kind.wide.min);\n kind.wide.max = Math.ceil((kind.wide.size * self.MAX_ACCEPTABLE + self.PADDING) / kind.wide.counts);\n });\n\n return categorization;\n};\n\nCodabarReader.prototype._charToPattern = function(char) {\n var self = this,\n charCode = char.charCodeAt(0),\n i;\n\n for (i = 0; i < self.ALPHABET.length; i++) {\n if (self.ALPHABET[i] === charCode){\n return self.CHARACTER_ENCODINGS[i];\n }\n }\n return 0x0;\n};\n\nCodabarReader.prototype._validateResult = function(result, startCounter) {\n var self = this,\n thresholds = self._thresholdResultPattern(result, startCounter),\n i,\n j,\n kind,\n cat,\n size,\n pos = startCounter,\n pattern;\n\n for (i = 0; i < result.length; i++) {\n pattern = self._charToPattern(result[i]);\n for (j = 6; j >= 0; j--) {\n kind = (j & 1) === 0 ? thresholds.bar : thresholds.space;\n cat = (pattern & 1) === 1 ? kind.wide : kind.narrow;\n size = self._counters[pos + j];\n if (size < cat.min || size > cat.max) {\n return false;\n }\n pattern >>= 1;\n }\n pos += 8;\n }\n return true;\n};\n\nCodabarReader.prototype._patternToChar = function(pattern) {\n var i,\n self = this;\n\n for (i = 0; i < self.CHARACTER_ENCODINGS.length; i++) {\n if (self.CHARACTER_ENCODINGS[i] === pattern) {\n return String.fromCharCode(self.ALPHABET[i]);\n }\n }\n return -1;\n};\n\nCodabarReader.prototype._computeAlternatingThreshold = function(offset, end) {\n var i,\n min = Number.MAX_VALUE,\n max = 0,\n counter;\n\n for (i = offset; i < end; i += 2){\n counter = this._counters[i];\n if (counter > max) {\n max = counter;\n }\n if (counter < min) {\n min = counter;\n }\n }\n\n return ((min + max) / 2.0) | 0;\n};\n\nCodabarReader.prototype._toPattern = function(offset) {\n var numCounters = 7,\n end = offset + numCounters,\n barThreshold,\n spaceThreshold,\n bitmask = 1 << (numCounters - 1),\n pattern = 0,\n i,\n threshold;\n\n if (end > this._counters.length) {\n return -1;\n }\n\n barThreshold = this._computeAlternatingThreshold(offset, end);\n spaceThreshold = this._computeAlternatingThreshold(offset + 1, end);\n\n for (i = 0; i < numCounters; i++){\n threshold = (i & 1) === 0 ? barThreshold : spaceThreshold;\n if (this._counters[offset + i] > threshold) {\n pattern |= bitmask;\n }\n bitmask >>= 1;\n }\n\n return pattern;\n};\n\nCodabarReader.prototype._isStartEnd = function(pattern) {\n var i;\n\n for (i = 0; i < this.START_END.length; i++) {\n if (this.START_END[i] === pattern) {\n return true;\n }\n }\n return false;\n};\n\nCodabarReader.prototype._sumCounters = function(start, end) {\n var i,\n sum = 0;\n\n for (i = start; i < end; i++) {\n sum += this._counters[i];\n }\n return sum;\n};\n\nCodabarReader.prototype._findStart = function() {\n var self = this,\n i,\n pattern,\n start = self._nextUnset(self._row),\n end;\n\n for (i = 1; i < this._counters.length; i++) {\n pattern = self._toPattern(i);\n if (pattern !== -1 && self._isStartEnd(pattern)) {\n // TODO: Look for whitespace ahead\n start += self._sumCounters(0, i);\n end = start + self._sumCounters(i, i + 8);\n return {\n start: start,\n end: end,\n startCounter: i,\n endCounter: i + 8\n };\n }\n }\n};\n\nexport default CodabarReader;\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/codabar_reader.js\n **/","import EANReader from './ean_reader';\n\nfunction UPCReader() {\n EANReader.call(this);\n}\n\nvar properties = {\n FORMAT: {value: \"upc_a\", writeable: false}\n};\n\nUPCReader.prototype = Object.create(EANReader.prototype, properties);\nUPCReader.prototype.constructor = UPCReader;\n\nUPCReader.prototype._decode = function() {\n var result = EANReader.prototype._decode.call(this);\n\n if (result && result.code && result.code.length === 13 && result.code.charAt(0) === \"0\") {\n\n result.code = result.code.substring(1);\n return result;\n }\n return null;\n};\n\nexport default EANReader;\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/upc_reader.js\n **/","import EANReader from './ean_reader';\n\nfunction EAN8Reader() {\n EANReader.call(this);\n}\n\nvar properties = {\n FORMAT: {value: \"ean_8\", writeable: false}\n};\n\nEAN8Reader.prototype = Object.create(EANReader.prototype, properties);\nEAN8Reader.prototype.constructor = EAN8Reader;\n\nEAN8Reader.prototype._decodePayload = function(code, result, decodedCodes) {\n var i,\n self = this;\n\n for ( i = 0; i < 4; i++) {\n code = self._decodeCode(code.end, self.CODE_G_START);\n if (!code) {\n return null;\n }\n result.push(code.code);\n decodedCodes.push(code);\n }\n\n code = self._findPattern(self.MIDDLE_PATTERN, code.end, true, false);\n if (code === null) {\n return null;\n }\n decodedCodes.push(code);\n\n for ( i = 0; i < 4; i++) {\n code = self._decodeCode(code.end, self.CODE_G_START);\n if (!code) {\n return null;\n }\n decodedCodes.push(code);\n result.push(code.code);\n }\n\n return code;\n};\n\nexport default EAN8Reader;\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/ean_8_reader.js\n **/","import EANReader from './ean_reader';\n\nfunction UPCEReader() {\n EANReader.call(this);\n}\n\nvar properties = {\n CODE_FREQUENCY : {value: [\n [ 56, 52, 50, 49, 44, 38, 35, 42, 41, 37 ],\n [7, 11, 13, 14, 19, 25, 28, 21, 22, 26]]},\n STOP_PATTERN: { value: [1 / 6 * 7, 1 / 6 * 7, 1 / 6 * 7, 1 / 6 * 7, 1 / 6 * 7, 1 / 6 * 7]},\n FORMAT: {value: \"upc_e\", writeable: false}\n};\n\nUPCEReader.prototype = Object.create(EANReader.prototype, properties);\nUPCEReader.prototype.constructor = UPCEReader;\n\nUPCEReader.prototype._decodePayload = function(code, result, decodedCodes) {\n var i,\n self = this,\n codeFrequency = 0x0;\n\n for ( i = 0; i < 6; i++) {\n code = self._decodeCode(code.end);\n if (!code) {\n return null;\n }\n if (code.code >= self.CODE_G_START) {\n code.code = code.code - self.CODE_G_START;\n codeFrequency |= 1 << (5 - i);\n }\n result.push(code.code);\n decodedCodes.push(code);\n }\n if (!self._determineParity(codeFrequency, result)) {\n return null;\n }\n\n return code;\n};\n\nUPCEReader.prototype._determineParity = function(codeFrequency, result) {\n var self =this,\n i,\n nrSystem;\n\n for (nrSystem = 0; nrSystem < self.CODE_FREQUENCY.length; nrSystem++){\n for ( i = 0; i < self.CODE_FREQUENCY[nrSystem].length; i++) {\n if (codeFrequency === self.CODE_FREQUENCY[nrSystem][i]) {\n result.unshift(nrSystem);\n result.push(i);\n return true;\n }\n }\n }\n return false;\n};\n\nUPCEReader.prototype._convertToUPCA = function(result) {\n var upca = [result[0]],\n lastDigit = result[result.length - 2];\n\n if (lastDigit <= 2) {\n upca = upca.concat(result.slice(1, 3))\n .concat([lastDigit, 0, 0, 0, 0])\n .concat(result.slice(3, 6));\n } else if (lastDigit === 3) {\n upca = upca.concat(result.slice(1, 4))\n .concat([0 ,0, 0, 0, 0])\n .concat(result.slice(4,6));\n } else if (lastDigit === 4) {\n upca = upca.concat(result.slice(1, 5))\n .concat([0, 0, 0, 0, 0, result[5]]);\n } else {\n upca = upca.concat(result.slice(1, 6))\n .concat([0, 0, 0, 0, lastDigit]);\n }\n\n upca.push(result[result.length - 1]);\n return upca;\n};\n\nUPCEReader.prototype._checksum = function(result) {\n return EANReader.prototype._checksum.call(this, this._convertToUPCA(result));\n};\n\nUPCEReader.prototype._findEnd = function(offset, isWhite) {\n isWhite = true;\n return EANReader.prototype._findEnd.call(this, offset, isWhite);\n};\n\nUPCEReader.prototype._verifyTrailingWhitespace = function(endInfo) {\n var self = this,\n trailingWhitespaceEnd;\n\n trailingWhitespaceEnd = endInfo.end + ((endInfo.end - endInfo.start)/2);\n if (trailingWhitespaceEnd < self._row.length) {\n if (self._matchRange(endInfo.end, trailingWhitespaceEnd, 0)) {\n return endInfo;\n }\n }\n};\n\nexport default UPCEReader;\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/upc_e_reader.js\n **/","import BarcodeReader from './barcode_reader';\nconst merge = require('lodash/object/merge');\n\nfunction I2of5Reader(opts) {\n opts = merge(getDefaulConfig(), opts);\n BarcodeReader.call(this, opts);\n this.barSpaceRatio = [1, 1];\n if (opts.normalizeBarSpaceWidth) {\n this.SINGLE_CODE_ERROR = 0.38;\n this.AVG_CODE_ERROR = 0.09;\n }\n}\n\nfunction getDefaulConfig() {\n var config = {};\n\n Object.keys(I2of5Reader.CONFIG_KEYS).forEach(function(key) {\n config[key] = I2of5Reader.CONFIG_KEYS[key]['default'];\n });\n return config;\n}\n\nvar N = 1,\n W = 3,\n properties = {\n MODULO : {value: 10},\n START_PATTERN : {value: [N*2.5, N*2.5, N*2.5, N*2.5]},\n STOP_PATTERN : {value: [N*2, N*2, W*2]},\n CODE_PATTERN : {value: [\n [N, N, W, W, N],\n [W, N, N, N, W],\n [N, W, N, N, W],\n [W, W, N, N, N],\n [N, N, W, N, W],\n [W, N, W, N, N],\n [N, W, W, N, N],\n [N, N, N, W, W],\n [W, N, N, W, N],\n [N, W, N, W, N]\n ]},\n SINGLE_CODE_ERROR: {value: 0.78, writable: true},\n AVG_CODE_ERROR: {value: 0.38, writable: true},\n MAX_CORRECTION_FACTOR: {value: 5},\n FORMAT: {value: \"i2of5\"}\n};\n\nI2of5Reader.prototype = Object.create(BarcodeReader.prototype, properties);\nI2of5Reader.prototype.constructor = I2of5Reader;\n\nI2of5Reader.prototype._matchPattern = function(counter, code) {\n if (this.config.normalizeBarSpaceWidth) {\n var i,\n counterSum = [0, 0],\n codeSum = [0, 0],\n correction = [0, 0],\n correctionRatio = this.MAX_CORRECTION_FACTOR,\n correctionRatioInverse = 1 / correctionRatio;\n\n for (i = 0; i < counter.length; i++) {\n counterSum[i % 2] += counter[i];\n codeSum[i % 2] += code[i];\n }\n correction[0] = codeSum[0] / counterSum[0];\n correction[1] = codeSum[1] / counterSum[1];\n\n correction[0] = Math.max(Math.min(correction[0], correctionRatio), correctionRatioInverse);\n correction[1] = Math.max(Math.min(correction[1], correctionRatio), correctionRatioInverse);\n this.barSpaceRatio = correction;\n for (i = 0; i < counter.length; i++) {\n counter[i] *= this.barSpaceRatio[i % 2];\n }\n }\n return BarcodeReader.prototype._matchPattern.call(this, counter, code);\n};\n\nI2of5Reader.prototype._findPattern = function(pattern, offset, isWhite, tryHarder) {\n var counter = [],\n self = this,\n i,\n counterPos = 0,\n bestMatch = {\n error : Number.MAX_VALUE,\n code : -1,\n start : 0,\n end : 0\n },\n error,\n j,\n sum,\n normalized,\n epsilon = self.AVG_CODE_ERROR;\n\n isWhite = isWhite || false;\n tryHarder = tryHarder || false;\n\n if (!offset) {\n offset = self._nextSet(self._row);\n }\n\n for ( i = 0; i < pattern.length; i++) {\n counter[i] = 0;\n }\n\n for ( i = offset; i < self._row.length; i++) {\n if (self._row[i] ^ isWhite) {\n counter[counterPos]++;\n } else {\n if (counterPos === counter.length - 1) {\n sum = 0;\n for ( j = 0; j < counter.length; j++) {\n sum += counter[j];\n }\n normalized = self._normalize(counter);\n if (normalized) {\n error = self._matchPattern(normalized, pattern);\n\n if (error < epsilon) {\n bestMatch.error = error;\n bestMatch.start = i - sum;\n bestMatch.end = i;\n return bestMatch;\n }\n }\n if (tryHarder) {\n for (j = 0; j < counter.length - 2; j++) {\n counter[j] = counter[j + 2];\n }\n counter[counter.length - 2] = 0;\n counter[counter.length - 1] = 0;\n counterPos--;\n } else {\n return null;\n }\n } else {\n counterPos++;\n }\n counter[counterPos] = 1;\n isWhite = !isWhite;\n }\n }\n return null;\n};\n\nI2of5Reader.prototype._findStart = function() {\n var self = this,\n leadingWhitespaceStart,\n offset = self._nextSet(self._row),\n startInfo,\n narrowBarWidth = 1;\n\n while(!startInfo) {\n startInfo = self._findPattern(self.START_PATTERN, offset, false, true);\n if (!startInfo) {\n return null;\n }\n narrowBarWidth = Math.floor((startInfo.end - startInfo.start) / 4);\n leadingWhitespaceStart = startInfo.start - narrowBarWidth*10;\n if (leadingWhitespaceStart >= 0) {\n if (self._matchRange(leadingWhitespaceStart, startInfo.start, 0)) {\n return startInfo;\n }\n }\n offset = startInfo.end;\n startInfo = null;\n }\n};\n\nI2of5Reader.prototype._verifyTrailingWhitespace = function(endInfo) {\n var self = this,\n trailingWhitespaceEnd;\n\n trailingWhitespaceEnd = endInfo.end + ((endInfo.end - endInfo.start) / 2);\n if (trailingWhitespaceEnd < self._row.length) {\n if (self._matchRange(endInfo.end, trailingWhitespaceEnd, 0)) {\n return endInfo;\n }\n }\n return null;\n};\n\nI2of5Reader.prototype._findEnd = function() {\n var self = this,\n endInfo,\n tmp;\n\n self._row.reverse();\n endInfo = self._findPattern(self.STOP_PATTERN);\n self._row.reverse();\n\n if (endInfo === null) {\n return null;\n }\n\n // reverse numbers\n tmp = endInfo.start;\n endInfo.start = self._row.length - endInfo.end;\n endInfo.end = self._row.length - tmp;\n\n return endInfo !== null ? self._verifyTrailingWhitespace(endInfo) : null;\n};\n\nI2of5Reader.prototype._decodePair = function(counterPair) {\n var i,\n code,\n codes = [],\n self = this;\n\n for (i = 0; i < counterPair.length; i++) {\n code = self._decodeCode(counterPair[i]);\n if (!code) {\n return null;\n }\n codes.push(code);\n }\n return codes;\n};\n\nI2of5Reader.prototype._decodeCode = function(counter) {\n var j,\n self = this,\n sum = 0,\n normalized,\n error,\n epsilon = self.AVG_CODE_ERROR,\n code,\n bestMatch = {\n error : Number.MAX_VALUE,\n code : -1,\n start : 0,\n end : 0\n };\n\n for ( j = 0; j < counter.length; j++) {\n sum += counter[j];\n }\n normalized = self._normalize(counter);\n if (normalized) {\n for (code = 0; code < self.CODE_PATTERN.length; code++) {\n error = self._matchPattern(normalized, self.CODE_PATTERN[code]);\n if (error < bestMatch.error) {\n bestMatch.code = code;\n bestMatch.error = error;\n }\n }\n if (bestMatch.error < epsilon) {\n return bestMatch;\n }\n }\n return null;\n};\n\nI2of5Reader.prototype._decodePayload = function(counters, result, decodedCodes) {\n var i,\n self = this,\n pos = 0,\n counterLength = counters.length,\n counterPair = [[0, 0, 0, 0, 0], [0, 0, 0, 0, 0]],\n codes;\n\n while (pos < counterLength) {\n for (i = 0; i < 5; i++) {\n counterPair[0][i] = counters[pos]*this.barSpaceRatio[0];\n counterPair[1][i] = counters[pos + 1]*this.barSpaceRatio[1];\n pos += 2;\n }\n codes = self._decodePair(counterPair);\n if (!codes) {\n return null;\n }\n for (i = 0; i < codes.length; i++) {\n result.push(codes[i].code + \"\");\n decodedCodes.push(codes[i]);\n }\n }\n return codes;\n};\n\nI2of5Reader.prototype._verifyCounterLength = function(counters) {\n return (counters.length % 10 === 0);\n};\n\nI2of5Reader.prototype._decode = function() {\n var startInfo,\n endInfo,\n self = this,\n code,\n result = [],\n decodedCodes = [],\n counters;\n\n startInfo = self._findStart();\n if (!startInfo) {\n return null;\n }\n decodedCodes.push(startInfo);\n\n endInfo = self._findEnd();\n if (!endInfo) {\n return null;\n }\n\n counters = self._fillCounters(startInfo.end, endInfo.start, false);\n if (!self._verifyCounterLength(counters)) {\n return null;\n }\n code = self._decodePayload(counters, result, decodedCodes);\n if (!code) {\n return null;\n }\n if (result.length % 2 !== 0 ||\n result.length < 6) {\n return null;\n }\n\n decodedCodes.push(endInfo);\n return {\n code : result.join(\"\"),\n start : startInfo.start,\n end : endInfo.end,\n startInfo : startInfo,\n decodedCodes : decodedCodes\n };\n};\n\nI2of5Reader.CONFIG_KEYS = {\n normalizeBarSpaceWidth: {\n 'type': 'boolean',\n 'default': false,\n 'description': 'If true, the reader tries to normalize the' +\n 'width-difference between bars and spaces'\n }\n};\n\nexport default I2of5Reader;\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/i2of5_reader.js\n **/","var baseMerge = require('../internal/baseMerge'),\n createAssigner = require('../internal/createAssigner');\n\n/**\n * Recursively merges own enumerable properties of the source object(s), that\n * don't resolve to `undefined` into the destination object. Subsequent sources\n * overwrite property assignments of previous sources. If `customizer` is\n * provided it's invoked to produce the merged values of the destination and\n * source properties. If `customizer` returns `undefined` merging is handled\n * by the method instead. The `customizer` is bound to `thisArg` and invoked\n * with five arguments: (objectValue, sourceValue, key, object, source).\n *\n * @static\n * @memberOf _\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} [sources] The source objects.\n * @param {Function} [customizer] The function to customize assigned values.\n * @param {*} [thisArg] The `this` binding of `customizer`.\n * @returns {Object} Returns `object`.\n * @example\n *\n * var users = {\n * 'data': [{ 'user': 'barney' }, { 'user': 'fred' }]\n * };\n *\n * var ages = {\n * 'data': [{ 'age': 36 }, { 'age': 40 }]\n * };\n *\n * _.merge(users, ages);\n * // => { 'data': [{ 'user': 'barney', 'age': 36 }, { 'user': 'fred', 'age': 40 }] }\n *\n * // using a customizer callback\n * var object = {\n * 'fruits': ['apple'],\n * 'vegetables': ['beet']\n * };\n *\n * var other = {\n * 'fruits': ['banana'],\n * 'vegetables': ['carrot']\n * };\n *\n * _.merge(object, other, function(a, b) {\n * if (_.isArray(a)) {\n * return a.concat(b);\n * }\n * });\n * // => { 'fruits': ['apple', 'banana'], 'vegetables': ['beet', 'carrot'] }\n */\nvar merge = createAssigner(baseMerge);\n\nmodule.exports = merge;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/object/merge.js\n ** module id = 37\n ** module chunks = 0\n **/","var arrayEach = require('./arrayEach'),\n baseMergeDeep = require('./baseMergeDeep'),\n isArray = require('../lang/isArray'),\n isArrayLike = require('./isArrayLike'),\n isObject = require('../lang/isObject'),\n isObjectLike = require('./isObjectLike'),\n isTypedArray = require('../lang/isTypedArray'),\n keys = require('../object/keys');\n\n/**\n * The base implementation of `_.merge` without support for argument juggling,\n * multiple sources, and `this` binding `customizer` functions.\n *\n * @private\n * @param {Object} object The destination object.\n * @param {Object} source The source object.\n * @param {Function} [customizer] The function to customize merged values.\n * @param {Array} [stackA=[]] Tracks traversed source objects.\n * @param {Array} [stackB=[]] Associates values with source counterparts.\n * @returns {Object} Returns `object`.\n */\nfunction baseMerge(object, source, customizer, stackA, stackB) {\n if (!isObject(object)) {\n return object;\n }\n var isSrcArr = isArrayLike(source) && (isArray(source) || isTypedArray(source)),\n props = isSrcArr ? undefined : keys(source);\n\n arrayEach(props || source, function(srcValue, key) {\n if (props) {\n key = srcValue;\n srcValue = source[key];\n }\n if (isObjectLike(srcValue)) {\n stackA || (stackA = []);\n stackB || (stackB = []);\n baseMergeDeep(object, source, key, baseMerge, customizer, stackA, stackB);\n }\n else {\n var value = object[key],\n result = customizer ? customizer(value, srcValue, key, object, source) : undefined,\n isCommon = result === undefined;\n\n if (isCommon) {\n result = srcValue;\n }\n if ((result !== undefined || (isSrcArr && !(key in object))) &&\n (isCommon || (result === result ? (result !== value) : (value === value)))) {\n object[key] = result;\n }\n }\n });\n return object;\n}\n\nmodule.exports = baseMerge;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/internal/baseMerge.js\n ** module id = 38\n ** module chunks = 0\n **/","/**\n * A specialized version of `_.forEach` for arrays without support for callback\n * shorthands and `this` binding.\n *\n * @private\n * @param {Array} array The array to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Array} Returns `array`.\n */\nfunction arrayEach(array, iteratee) {\n var index = -1,\n length = array.length;\n\n while (++index < length) {\n if (iteratee(array[index], index, array) === false) {\n break;\n }\n }\n return array;\n}\n\nmodule.exports = arrayEach;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/internal/arrayEach.js\n ** module id = 39\n ** module chunks = 0\n **/","var arrayCopy = require('./arrayCopy'),\n isArguments = require('../lang/isArguments'),\n isArray = require('../lang/isArray'),\n isArrayLike = require('./isArrayLike'),\n isPlainObject = require('../lang/isPlainObject'),\n isTypedArray = require('../lang/isTypedArray'),\n toPlainObject = require('../lang/toPlainObject');\n\n/**\n * A specialized version of `baseMerge` for arrays and objects which performs\n * deep merges and tracks traversed objects enabling objects with circular\n * references to be merged.\n *\n * @private\n * @param {Object} object The destination object.\n * @param {Object} source The source object.\n * @param {string} key The key of the value to merge.\n * @param {Function} mergeFunc The function to merge values.\n * @param {Function} [customizer] The function to customize merged values.\n * @param {Array} [stackA=[]] Tracks traversed source objects.\n * @param {Array} [stackB=[]] Associates values with source counterparts.\n * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.\n */\nfunction baseMergeDeep(object, source, key, mergeFunc, customizer, stackA, stackB) {\n var length = stackA.length,\n srcValue = source[key];\n\n while (length--) {\n if (stackA[length] == srcValue) {\n object[key] = stackB[length];\n return;\n }\n }\n var value = object[key],\n result = customizer ? customizer(value, srcValue, key, object, source) : undefined,\n isCommon = result === undefined;\n\n if (isCommon) {\n result = srcValue;\n if (isArrayLike(srcValue) && (isArray(srcValue) || isTypedArray(srcValue))) {\n result = isArray(value)\n ? value\n : (isArrayLike(value) ? arrayCopy(value) : []);\n }\n else if (isPlainObject(srcValue) || isArguments(srcValue)) {\n result = isArguments(value)\n ? toPlainObject(value)\n : (isPlainObject(value) ? value : {});\n }\n else {\n isCommon = false;\n }\n }\n // Add the source value to the stack of traversed objects and associate\n // it with its merged value.\n stackA.push(srcValue);\n stackB.push(result);\n\n if (isCommon) {\n // Recursively merge objects and arrays (susceptible to call stack limits).\n object[key] = mergeFunc(result, srcValue, customizer, stackA, stackB);\n } else if (result === result ? (result !== value) : (value === value)) {\n object[key] = result;\n }\n}\n\nmodule.exports = baseMergeDeep;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/internal/baseMergeDeep.js\n ** module id = 40\n ** module chunks = 0\n **/","/**\n * Copies the values of `source` to `array`.\n *\n * @private\n * @param {Array} source The array to copy values from.\n * @param {Array} [array=[]] The array to copy values to.\n * @returns {Array} Returns `array`.\n */\nfunction arrayCopy(source, array) {\n var index = -1,\n length = source.length;\n\n array || (array = Array(length));\n while (++index < length) {\n array[index] = source[index];\n }\n return array;\n}\n\nmodule.exports = arrayCopy;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/internal/arrayCopy.js\n ** module id = 41\n ** module chunks = 0\n **/","var isArrayLike = require('../internal/isArrayLike'),\n isObjectLike = require('../internal/isObjectLike');\n\n/** Used for native method references. */\nvar objectProto = Object.prototype;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/** Native method references. */\nvar propertyIsEnumerable = objectProto.propertyIsEnumerable;\n\n/**\n * Checks if `value` is classified as an `arguments` object.\n *\n * @static\n * @memberOf _\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.\n * @example\n *\n * _.isArguments(function() { return arguments; }());\n * // => true\n *\n * _.isArguments([1, 2, 3]);\n * // => false\n */\nfunction isArguments(value) {\n return isObjectLike(value) && isArrayLike(value) &&\n hasOwnProperty.call(value, 'callee') && !propertyIsEnumerable.call(value, 'callee');\n}\n\nmodule.exports = isArguments;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/lang/isArguments.js\n ** module id = 42\n ** module chunks = 0\n **/","var getLength = require('./getLength'),\n isLength = require('./isLength');\n\n/**\n * Checks if `value` is array-like.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is array-like, else `false`.\n */\nfunction isArrayLike(value) {\n return value != null && isLength(getLength(value));\n}\n\nmodule.exports = isArrayLike;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/internal/isArrayLike.js\n ** module id = 43\n ** module chunks = 0\n **/","var baseProperty = require('./baseProperty');\n\n/**\n * Gets the \"length\" property value of `object`.\n *\n * **Note:** This function is used to avoid a [JIT bug](https://bugs.webkit.org/show_bug.cgi?id=142792)\n * that affects Safari on at least iOS 8.1-8.3 ARM64.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {*} Returns the \"length\" value.\n */\nvar getLength = baseProperty('length');\n\nmodule.exports = getLength;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/internal/getLength.js\n ** module id = 44\n ** module chunks = 0\n **/","/**\n * The base implementation of `_.property` without support for deep paths.\n *\n * @private\n * @param {string} key The key of the property to get.\n * @returns {Function} Returns the new function.\n */\nfunction baseProperty(key) {\n return function(object) {\n return object == null ? undefined : object[key];\n };\n}\n\nmodule.exports = baseProperty;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/internal/baseProperty.js\n ** module id = 45\n ** module chunks = 0\n **/","/**\n * Used as the [maximum length](http://ecma-international.org/ecma-262/6.0/#sec-number.max_safe_integer)\n * of an array-like value.\n */\nvar MAX_SAFE_INTEGER = 9007199254740991;\n\n/**\n * Checks if `value` is a valid array-like length.\n *\n * **Note:** This function is based on [`ToLength`](http://ecma-international.org/ecma-262/6.0/#sec-tolength).\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a valid length, else `false`.\n */\nfunction isLength(value) {\n return typeof value == 'number' && value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER;\n}\n\nmodule.exports = isLength;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/internal/isLength.js\n ** module id = 46\n ** module chunks = 0\n **/","/**\n * Checks if `value` is object-like.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is object-like, else `false`.\n */\nfunction isObjectLike(value) {\n return !!value && typeof value == 'object';\n}\n\nmodule.exports = isObjectLike;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/internal/isObjectLike.js\n ** module id = 47\n ** module chunks = 0\n **/","var getNative = require('../internal/getNative'),\n isLength = require('../internal/isLength'),\n isObjectLike = require('../internal/isObjectLike');\n\n/** `Object#toString` result references. */\nvar arrayTag = '[object Array]';\n\n/** Used for native method references. */\nvar objectProto = Object.prototype;\n\n/**\n * Used to resolve the [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)\n * of values.\n */\nvar objToString = objectProto.toString;\n\n/* Native method references for those with the same name as other `lodash` methods. */\nvar nativeIsArray = getNative(Array, 'isArray');\n\n/**\n * Checks if `value` is classified as an `Array` object.\n *\n * @static\n * @memberOf _\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.\n * @example\n *\n * _.isArray([1, 2, 3]);\n * // => true\n *\n * _.isArray(function() { return arguments; }());\n * // => false\n */\nvar isArray = nativeIsArray || function(value) {\n return isObjectLike(value) && isLength(value.length) && objToString.call(value) == arrayTag;\n};\n\nmodule.exports = isArray;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/lang/isArray.js\n ** module id = 48\n ** module chunks = 0\n **/","var isNative = require('../lang/isNative');\n\n/**\n * Gets the native function at `key` of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {string} key The key of the method to get.\n * @returns {*} Returns the function if it's native, else `undefined`.\n */\nfunction getNative(object, key) {\n var value = object == null ? undefined : object[key];\n return isNative(value) ? value : undefined;\n}\n\nmodule.exports = getNative;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/internal/getNative.js\n ** module id = 49\n ** module chunks = 0\n **/","var isFunction = require('./isFunction'),\n isObjectLike = require('../internal/isObjectLike');\n\n/** Used to detect host constructors (Safari > 5). */\nvar reIsHostCtor = /^\\[object .+?Constructor\\]$/;\n\n/** Used for native method references. */\nvar objectProto = Object.prototype;\n\n/** Used to resolve the decompiled source of functions. */\nvar fnToString = Function.prototype.toString;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/** Used to detect if a method is native. */\nvar reIsNative = RegExp('^' +\n fnToString.call(hasOwnProperty).replace(/[\\\\^$.*+?()[\\]{}|]/g, '\\\\$&')\n .replace(/hasOwnProperty|(function).*?(?=\\\\\\()| for .+?(?=\\\\\\])/g, '$1.*?') + '$'\n);\n\n/**\n * Checks if `value` is a native function.\n *\n * @static\n * @memberOf _\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a native function, else `false`.\n * @example\n *\n * _.isNative(Array.prototype.push);\n * // => true\n *\n * _.isNative(_);\n * // => false\n */\nfunction isNative(value) {\n if (value == null) {\n return false;\n }\n if (isFunction(value)) {\n return reIsNative.test(fnToString.call(value));\n }\n return isObjectLike(value) && reIsHostCtor.test(value);\n}\n\nmodule.exports = isNative;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/lang/isNative.js\n ** module id = 50\n ** module chunks = 0\n **/","var isObject = require('./isObject');\n\n/** `Object#toString` result references. */\nvar funcTag = '[object Function]';\n\n/** Used for native method references. */\nvar objectProto = Object.prototype;\n\n/**\n * Used to resolve the [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)\n * of values.\n */\nvar objToString = objectProto.toString;\n\n/**\n * Checks if `value` is classified as a `Function` object.\n *\n * @static\n * @memberOf _\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.\n * @example\n *\n * _.isFunction(_);\n * // => true\n *\n * _.isFunction(/abc/);\n * // => false\n */\nfunction isFunction(value) {\n // The use of `Object#toString` avoids issues with the `typeof` operator\n // in older versions of Chrome and Safari which return 'function' for regexes\n // and Safari 8 which returns 'object' for typed array constructors.\n return isObject(value) && objToString.call(value) == funcTag;\n}\n\nmodule.exports = isFunction;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/lang/isFunction.js\n ** module id = 51\n ** module chunks = 0\n **/","/**\n * Checks if `value` is the [language type](https://es5.github.io/#x8) of `Object`.\n * (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)\n *\n * @static\n * @memberOf _\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an object, else `false`.\n * @example\n *\n * _.isObject({});\n * // => true\n *\n * _.isObject([1, 2, 3]);\n * // => true\n *\n * _.isObject(1);\n * // => false\n */\nfunction isObject(value) {\n // Avoid a V8 JIT bug in Chrome 19-20.\n // See https://code.google.com/p/v8/issues/detail?id=2291 for more details.\n var type = typeof value;\n return !!value && (type == 'object' || type == 'function');\n}\n\nmodule.exports = isObject;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/lang/isObject.js\n ** module id = 52\n ** module chunks = 0\n **/","var baseForIn = require('../internal/baseForIn'),\n isArguments = require('./isArguments'),\n isObjectLike = require('../internal/isObjectLike');\n\n/** `Object#toString` result references. */\nvar objectTag = '[object Object]';\n\n/** Used for native method references. */\nvar objectProto = Object.prototype;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/**\n * Used to resolve the [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)\n * of values.\n */\nvar objToString = objectProto.toString;\n\n/**\n * Checks if `value` is a plain object, that is, an object created by the\n * `Object` constructor or one with a `[[Prototype]]` of `null`.\n *\n * **Note:** This method assumes objects created by the `Object` constructor\n * have no inherited enumerable properties.\n *\n * @static\n * @memberOf _\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a plain object, else `false`.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * }\n *\n * _.isPlainObject(new Foo);\n * // => false\n *\n * _.isPlainObject([1, 2, 3]);\n * // => false\n *\n * _.isPlainObject({ 'x': 0, 'y': 0 });\n * // => true\n *\n * _.isPlainObject(Object.create(null));\n * // => true\n */\nfunction isPlainObject(value) {\n var Ctor;\n\n // Exit early for non `Object` objects.\n if (!(isObjectLike(value) && objToString.call(value) == objectTag && !isArguments(value)) ||\n (!hasOwnProperty.call(value, 'constructor') && (Ctor = value.constructor, typeof Ctor == 'function' && !(Ctor instanceof Ctor)))) {\n return false;\n }\n // IE < 9 iterates inherited properties before own properties. If the first\n // iterated property is an object's own property then there are no inherited\n // enumerable properties.\n var result;\n // In most environments an object's own properties are iterated before\n // its inherited properties. If the last iterated property is an object's\n // own property then there are no inherited enumerable properties.\n baseForIn(value, function(subValue, key) {\n result = key;\n });\n return result === undefined || hasOwnProperty.call(value, result);\n}\n\nmodule.exports = isPlainObject;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/lang/isPlainObject.js\n ** module id = 53\n ** module chunks = 0\n **/","var baseFor = require('./baseFor'),\n keysIn = require('../object/keysIn');\n\n/**\n * The base implementation of `_.forIn` without support for callback\n * shorthands and `this` binding.\n *\n * @private\n * @param {Object} object The object to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Object} Returns `object`.\n */\nfunction baseForIn(object, iteratee) {\n return baseFor(object, iteratee, keysIn);\n}\n\nmodule.exports = baseForIn;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/internal/baseForIn.js\n ** module id = 54\n ** module chunks = 0\n **/","var createBaseFor = require('./createBaseFor');\n\n/**\n * The base implementation of `baseForIn` and `baseForOwn` which iterates\n * over `object` properties returned by `keysFunc` invoking `iteratee` for\n * each property. Iteratee functions may exit iteration early by explicitly\n * returning `false`.\n *\n * @private\n * @param {Object} object The object to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @param {Function} keysFunc The function to get the keys of `object`.\n * @returns {Object} Returns `object`.\n */\nvar baseFor = createBaseFor();\n\nmodule.exports = baseFor;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/internal/baseFor.js\n ** module id = 55\n ** module chunks = 0\n **/","var toObject = require('./toObject');\n\n/**\n * Creates a base function for `_.forIn` or `_.forInRight`.\n *\n * @private\n * @param {boolean} [fromRight] Specify iterating from right to left.\n * @returns {Function} Returns the new base function.\n */\nfunction createBaseFor(fromRight) {\n return function(object, iteratee, keysFunc) {\n var iterable = toObject(object),\n props = keysFunc(object),\n length = props.length,\n index = fromRight ? length : -1;\n\n while ((fromRight ? index-- : ++index < length)) {\n var key = props[index];\n if (iteratee(iterable[key], key, iterable) === false) {\n break;\n }\n }\n return object;\n };\n}\n\nmodule.exports = createBaseFor;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/internal/createBaseFor.js\n ** module id = 56\n ** module chunks = 0\n **/","var isObject = require('../lang/isObject');\n\n/**\n * Converts `value` to an object if it's not one.\n *\n * @private\n * @param {*} value The value to process.\n * @returns {Object} Returns the object.\n */\nfunction toObject(value) {\n return isObject(value) ? value : Object(value);\n}\n\nmodule.exports = toObject;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/internal/toObject.js\n ** module id = 57\n ** module chunks = 0\n **/","var isArguments = require('../lang/isArguments'),\n isArray = require('../lang/isArray'),\n isIndex = require('../internal/isIndex'),\n isLength = require('../internal/isLength'),\n isObject = require('../lang/isObject');\n\n/** Used for native method references. */\nvar objectProto = Object.prototype;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/**\n * Creates an array of the own and inherited enumerable property names of `object`.\n *\n * **Note:** Non-object values are coerced to objects.\n *\n * @static\n * @memberOf _\n * @category Object\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.keysIn(new Foo);\n * // => ['a', 'b', 'c'] (iteration order is not guaranteed)\n */\nfunction keysIn(object) {\n if (object == null) {\n return [];\n }\n if (!isObject(object)) {\n object = Object(object);\n }\n var length = object.length;\n length = (length && isLength(length) &&\n (isArray(object) || isArguments(object)) && length) || 0;\n\n var Ctor = object.constructor,\n index = -1,\n isProto = typeof Ctor == 'function' && Ctor.prototype === object,\n result = Array(length),\n skipIndexes = length > 0;\n\n while (++index < length) {\n result[index] = (index + '');\n }\n for (var key in object) {\n if (!(skipIndexes && isIndex(key, length)) &&\n !(key == 'constructor' && (isProto || !hasOwnProperty.call(object, key)))) {\n result.push(key);\n }\n }\n return result;\n}\n\nmodule.exports = keysIn;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/object/keysIn.js\n ** module id = 58\n ** module chunks = 0\n **/","/** Used to detect unsigned integer values. */\nvar reIsUint = /^\\d+$/;\n\n/**\n * Used as the [maximum length](http://ecma-international.org/ecma-262/6.0/#sec-number.max_safe_integer)\n * of an array-like value.\n */\nvar MAX_SAFE_INTEGER = 9007199254740991;\n\n/**\n * Checks if `value` is a valid array-like index.\n *\n * @private\n * @param {*} value The value to check.\n * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index.\n * @returns {boolean} Returns `true` if `value` is a valid index, else `false`.\n */\nfunction isIndex(value, length) {\n value = (typeof value == 'number' || reIsUint.test(value)) ? +value : -1;\n length = length == null ? MAX_SAFE_INTEGER : length;\n return value > -1 && value % 1 == 0 && value < length;\n}\n\nmodule.exports = isIndex;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/internal/isIndex.js\n ** module id = 59\n ** module chunks = 0\n **/","var isLength = require('../internal/isLength'),\n isObjectLike = require('../internal/isObjectLike');\n\n/** `Object#toString` result references. */\nvar argsTag = '[object Arguments]',\n arrayTag = '[object Array]',\n boolTag = '[object Boolean]',\n dateTag = '[object Date]',\n errorTag = '[object Error]',\n funcTag = '[object Function]',\n mapTag = '[object Map]',\n numberTag = '[object Number]',\n objectTag = '[object Object]',\n regexpTag = '[object RegExp]',\n setTag = '[object Set]',\n stringTag = '[object String]',\n weakMapTag = '[object WeakMap]';\n\nvar arrayBufferTag = '[object ArrayBuffer]',\n float32Tag = '[object Float32Array]',\n float64Tag = '[object Float64Array]',\n int8Tag = '[object Int8Array]',\n int16Tag = '[object Int16Array]',\n int32Tag = '[object Int32Array]',\n uint8Tag = '[object Uint8Array]',\n uint8ClampedTag = '[object Uint8ClampedArray]',\n uint16Tag = '[object Uint16Array]',\n uint32Tag = '[object Uint32Array]';\n\n/** Used to identify `toStringTag` values of typed arrays. */\nvar typedArrayTags = {};\ntypedArrayTags[float32Tag] = typedArrayTags[float64Tag] =\ntypedArrayTags[int8Tag] = typedArrayTags[int16Tag] =\ntypedArrayTags[int32Tag] = typedArrayTags[uint8Tag] =\ntypedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] =\ntypedArrayTags[uint32Tag] = true;\ntypedArrayTags[argsTag] = typedArrayTags[arrayTag] =\ntypedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] =\ntypedArrayTags[dateTag] = typedArrayTags[errorTag] =\ntypedArrayTags[funcTag] = typedArrayTags[mapTag] =\ntypedArrayTags[numberTag] = typedArrayTags[objectTag] =\ntypedArrayTags[regexpTag] = typedArrayTags[setTag] =\ntypedArrayTags[stringTag] = typedArrayTags[weakMapTag] = false;\n\n/** Used for native method references. */\nvar objectProto = Object.prototype;\n\n/**\n * Used to resolve the [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)\n * of values.\n */\nvar objToString = objectProto.toString;\n\n/**\n * Checks if `value` is classified as a typed array.\n *\n * @static\n * @memberOf _\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.\n * @example\n *\n * _.isTypedArray(new Uint8Array);\n * // => true\n *\n * _.isTypedArray([]);\n * // => false\n */\nfunction isTypedArray(value) {\n return isObjectLike(value) && isLength(value.length) && !!typedArrayTags[objToString.call(value)];\n}\n\nmodule.exports = isTypedArray;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/lang/isTypedArray.js\n ** module id = 60\n ** module chunks = 0\n **/","var baseCopy = require('../internal/baseCopy'),\n keysIn = require('../object/keysIn');\n\n/**\n * Converts `value` to a plain object flattening inherited enumerable\n * properties of `value` to own properties of the plain object.\n *\n * @static\n * @memberOf _\n * @category Lang\n * @param {*} value The value to convert.\n * @returns {Object} Returns the converted plain object.\n * @example\n *\n * function Foo() {\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.assign({ 'a': 1 }, new Foo);\n * // => { 'a': 1, 'b': 2 }\n *\n * _.assign({ 'a': 1 }, _.toPlainObject(new Foo));\n * // => { 'a': 1, 'b': 2, 'c': 3 }\n */\nfunction toPlainObject(value) {\n return baseCopy(value, keysIn(value));\n}\n\nmodule.exports = toPlainObject;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/lang/toPlainObject.js\n ** module id = 61\n ** module chunks = 0\n **/","/**\n * Copies properties of `source` to `object`.\n *\n * @private\n * @param {Object} source The object to copy properties from.\n * @param {Array} props The property names to copy.\n * @param {Object} [object={}] The object to copy properties to.\n * @returns {Object} Returns `object`.\n */\nfunction baseCopy(source, props, object) {\n object || (object = {});\n\n var index = -1,\n length = props.length;\n\n while (++index < length) {\n var key = props[index];\n object[key] = source[key];\n }\n return object;\n}\n\nmodule.exports = baseCopy;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/internal/baseCopy.js\n ** module id = 62\n ** module chunks = 0\n **/","var getNative = require('../internal/getNative'),\n isArrayLike = require('../internal/isArrayLike'),\n isObject = require('../lang/isObject'),\n shimKeys = require('../internal/shimKeys');\n\n/* Native method references for those with the same name as other `lodash` methods. */\nvar nativeKeys = getNative(Object, 'keys');\n\n/**\n * Creates an array of the own enumerable property names of `object`.\n *\n * **Note:** Non-object values are coerced to objects. See the\n * [ES spec](http://ecma-international.org/ecma-262/6.0/#sec-object.keys)\n * for more details.\n *\n * @static\n * @memberOf _\n * @category Object\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.keys(new Foo);\n * // => ['a', 'b'] (iteration order is not guaranteed)\n *\n * _.keys('hi');\n * // => ['0', '1']\n */\nvar keys = !nativeKeys ? shimKeys : function(object) {\n var Ctor = object == null ? undefined : object.constructor;\n if ((typeof Ctor == 'function' && Ctor.prototype === object) ||\n (typeof object != 'function' && isArrayLike(object))) {\n return shimKeys(object);\n }\n return isObject(object) ? nativeKeys(object) : [];\n};\n\nmodule.exports = keys;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/object/keys.js\n ** module id = 63\n ** module chunks = 0\n **/","var isArguments = require('../lang/isArguments'),\n isArray = require('../lang/isArray'),\n isIndex = require('./isIndex'),\n isLength = require('./isLength'),\n keysIn = require('../object/keysIn');\n\n/** Used for native method references. */\nvar objectProto = Object.prototype;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/**\n * A fallback implementation of `Object.keys` which creates an array of the\n * own enumerable property names of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n */\nfunction shimKeys(object) {\n var props = keysIn(object),\n propsLength = props.length,\n length = propsLength && object.length;\n\n var allowIndexes = !!length && isLength(length) &&\n (isArray(object) || isArguments(object));\n\n var index = -1,\n result = [];\n\n while (++index < propsLength) {\n var key = props[index];\n if ((allowIndexes && isIndex(key, length)) || hasOwnProperty.call(object, key)) {\n result.push(key);\n }\n }\n return result;\n}\n\nmodule.exports = shimKeys;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/internal/shimKeys.js\n ** module id = 64\n ** module chunks = 0\n **/","var bindCallback = require('./bindCallback'),\n isIterateeCall = require('./isIterateeCall'),\n restParam = require('../function/restParam');\n\n/**\n * Creates a `_.assign`, `_.defaults`, or `_.merge` function.\n *\n * @private\n * @param {Function} assigner The function to assign values.\n * @returns {Function} Returns the new assigner function.\n */\nfunction createAssigner(assigner) {\n return restParam(function(object, sources) {\n var index = -1,\n length = object == null ? 0 : sources.length,\n customizer = length > 2 ? sources[length - 2] : undefined,\n guard = length > 2 ? sources[2] : undefined,\n thisArg = length > 1 ? sources[length - 1] : undefined;\n\n if (typeof customizer == 'function') {\n customizer = bindCallback(customizer, thisArg, 5);\n length -= 2;\n } else {\n customizer = typeof thisArg == 'function' ? thisArg : undefined;\n length -= (customizer ? 1 : 0);\n }\n if (guard && isIterateeCall(sources[0], sources[1], guard)) {\n customizer = length < 3 ? undefined : customizer;\n length = 1;\n }\n while (++index < length) {\n var source = sources[index];\n if (source) {\n assigner(object, source, customizer);\n }\n }\n return object;\n });\n}\n\nmodule.exports = createAssigner;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/internal/createAssigner.js\n ** module id = 65\n ** module chunks = 0\n **/","var identity = require('../utility/identity');\n\n/**\n * A specialized version of `baseCallback` which only supports `this` binding\n * and specifying the number of arguments to provide to `func`.\n *\n * @private\n * @param {Function} func The function to bind.\n * @param {*} thisArg The `this` binding of `func`.\n * @param {number} [argCount] The number of arguments to provide to `func`.\n * @returns {Function} Returns the callback.\n */\nfunction bindCallback(func, thisArg, argCount) {\n if (typeof func != 'function') {\n return identity;\n }\n if (thisArg === undefined) {\n return func;\n }\n switch (argCount) {\n case 1: return function(value) {\n return func.call(thisArg, value);\n };\n case 3: return function(value, index, collection) {\n return func.call(thisArg, value, index, collection);\n };\n case 4: return function(accumulator, value, index, collection) {\n return func.call(thisArg, accumulator, value, index, collection);\n };\n case 5: return function(value, other, key, object, source) {\n return func.call(thisArg, value, other, key, object, source);\n };\n }\n return function() {\n return func.apply(thisArg, arguments);\n };\n}\n\nmodule.exports = bindCallback;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/internal/bindCallback.js\n ** module id = 66\n ** module chunks = 0\n **/","/**\n * This method returns the first argument provided to it.\n *\n * @static\n * @memberOf _\n * @category Utility\n * @param {*} value Any value.\n * @returns {*} Returns `value`.\n * @example\n *\n * var object = { 'user': 'fred' };\n *\n * _.identity(object) === object;\n * // => true\n */\nfunction identity(value) {\n return value;\n}\n\nmodule.exports = identity;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/utility/identity.js\n ** module id = 67\n ** module chunks = 0\n **/","var isArrayLike = require('./isArrayLike'),\n isIndex = require('./isIndex'),\n isObject = require('../lang/isObject');\n\n/**\n * Checks if the provided arguments are from an iteratee call.\n *\n * @private\n * @param {*} value The potential iteratee value argument.\n * @param {*} index The potential iteratee index or key argument.\n * @param {*} object The potential iteratee object argument.\n * @returns {boolean} Returns `true` if the arguments are from an iteratee call, else `false`.\n */\nfunction isIterateeCall(value, index, object) {\n if (!isObject(object)) {\n return false;\n }\n var type = typeof index;\n if (type == 'number'\n ? (isArrayLike(object) && isIndex(index, object.length))\n : (type == 'string' && index in object)) {\n var other = object[index];\n return value === value ? (value === other) : (other !== other);\n }\n return false;\n}\n\nmodule.exports = isIterateeCall;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/internal/isIterateeCall.js\n ** module id = 68\n ** module chunks = 0\n **/","/** Used as the `TypeError` message for \"Functions\" methods. */\nvar FUNC_ERROR_TEXT = 'Expected a function';\n\n/* Native method references for those with the same name as other `lodash` methods. */\nvar nativeMax = Math.max;\n\n/**\n * Creates a function that invokes `func` with the `this` binding of the\n * created function and arguments from `start` and beyond provided as an array.\n *\n * **Note:** This method is based on the [rest parameter](https://developer.mozilla.org/Web/JavaScript/Reference/Functions/rest_parameters).\n *\n * @static\n * @memberOf _\n * @category Function\n * @param {Function} func The function to apply a rest parameter to.\n * @param {number} [start=func.length-1] The start position of the rest parameter.\n * @returns {Function} Returns the new function.\n * @example\n *\n * var say = _.restParam(function(what, names) {\n * return what + ' ' + _.initial(names).join(', ') +\n * (_.size(names) > 1 ? ', & ' : '') + _.last(names);\n * });\n *\n * say('hello', 'fred', 'barney', 'pebbles');\n * // => 'hello fred, barney, & pebbles'\n */\nfunction restParam(func, start) {\n if (typeof func != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n start = nativeMax(start === undefined ? (func.length - 1) : (+start || 0), 0);\n return function() {\n var args = arguments,\n index = -1,\n length = nativeMax(args.length - start, 0),\n rest = Array(length);\n\n while (++index < length) {\n rest[index] = args[start + index];\n }\n switch (start) {\n case 0: return func.call(this, rest);\n case 1: return func.call(this, args[0], rest);\n case 2: return func.call(this, args[0], args[1], rest);\n }\n var otherArgs = Array(start + 1);\n index = -1;\n while (++index < start) {\n otherArgs[index] = args[index];\n }\n otherArgs[start] = rest;\n return func.apply(this, otherArgs);\n };\n}\n\nmodule.exports = restParam;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/function/restParam.js\n ** module id = 69\n ** module chunks = 0\n **/","import CVUtils from './cv_utils';\n\nvar FrameGrabber = {};\n\nFrameGrabber.create = function(inputStream, canvas) {\n var _that = {},\n _streamConfig = inputStream.getConfig(),\n _video_size = CVUtils.imageRef(inputStream.getRealWidth(), inputStream.getRealHeight()),\n _canvasSize = inputStream.getCanvasSize(),\n _size = CVUtils.imageRef(inputStream.getWidth(), inputStream.getHeight()),\n topRight = inputStream.getTopRight(),\n _sx = topRight.x,\n _sy = topRight.y,\n _canvas,\n _ctx = null,\n _data = null;\n\n _canvas = canvas ? canvas : document.createElement(\"canvas\");\n _canvas.width = _canvasSize.x;\n _canvas.height = _canvasSize.y;\n _ctx = _canvas.getContext(\"2d\");\n _data = new Uint8Array(_size.x * _size.y);\n console.log(\"FrameGrabber\", JSON.stringify({\n size: _size,\n topRight: topRight,\n videoSize: _video_size,\n canvasSize: _canvasSize\n }));\n\n /**\n * Uses the given array as frame-buffer\n */\n _that.attachData = function(data) {\n _data = data;\n };\n\n /**\n * Returns the used frame-buffer\n */\n _that.getData = function() {\n return _data;\n };\n\n /**\n * Fetches a frame from the input-stream and puts into the frame-buffer.\n * The image-data is converted to gray-scale and then half-sampled if configured.\n */\n _that.grab = function() {\n var doHalfSample = _streamConfig.halfSample,\n frame = inputStream.getFrame(),\n ctxData;\n if (frame) {\n _ctx.drawImage(frame, 0, 0, _canvasSize.x, _canvasSize.y);\n ctxData = _ctx.getImageData(_sx, _sy, _size.x, _size.y).data;\n if(doHalfSample){\n CVUtils.grayAndHalfSampleFromCanvasData(ctxData, _size, _data);\n } else {\n CVUtils.computeGray(ctxData, _data, _streamConfig);\n }\n return true;\n } else {\n return false;\n }\n };\n\n _that.getSize = function() {\n return _size;\n };\n\n return _that;\n};\n\nexport default FrameGrabber;\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/frame_grabber.js\n **/","export default {\n inputStream: {\n name: \"Live\",\n type: \"LiveStream\",\n constraints: {\n width: 640,\n height: 480,\n minAspectRatio: 0,\n maxAspectRatio: 100,\n facing: \"environment\" // or user\n },\n area: {\n top: \"0%\",\n right: \"0%\",\n left: \"0%\",\n bottom: \"0%\"\n },\n singleChannel: false // true: only the red color-channel is read\n },\n tracking: false,\n debug: false,\n controls: false,\n locate: true,\n numOfWorkers: 4,\n visual: {\n show: true\n },\n decoder: {\n drawBoundingBox: false,\n showFrequency: false,\n drawScanline: false,\n showPattern: false,\n readers: [\n 'code_128_reader'\n ]\n },\n locator: {\n halfSample: true,\n patchSize: \"medium\", // x-small, small, medium, large, x-large\n showCanvas: false,\n showPatches: false,\n showFoundPatches: false,\n showSkeleton: false,\n showLabels: false,\n showPatchLabels: false,\n showRemainingPatchLabels: false,\n boxFromPatches: {\n showTransformed: false,\n showTransformedBox: false,\n showBB: false\n }\n }\n};\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/config.js\n **/","export default function() {\n var events = {};\n\n function getEvent(eventName) {\n if (!events[eventName]) {\n events[eventName] = {\n subscribers : []\n };\n }\n return events[eventName];\n }\n\n function clearEvents(){\n events = {};\n }\n\n function publishSubscription(subscription, data) {\n if (subscription.async) {\n setTimeout(function() {\n subscription.callback(data);\n }, 4);\n } else {\n subscription.callback(data);\n }\n }\n\n function subscribe(event, callback, async) {\n var subscription;\n\n if ( typeof callback === \"function\") {\n subscription = {\n callback : callback,\n async : async\n };\n } else {\n subscription = callback;\n if (!subscription.callback) {\n throw \"Callback was not specified on options\";\n }\n }\n\n getEvent(event).subscribers.push(subscription);\n }\n\n return {\n subscribe : function(event, callback, async) {\n return subscribe(event, callback, async);\n },\n publish : function(eventName, data) {\n var event = getEvent(eventName),\n subscribers = event.subscribers;\n\n event.subscribers = subscribers.filter(function(subscriber) {\n publishSubscription(subscriber, data);\n return !subscriber.once;\n });\n },\n once: function(event, callback, async) {\n subscribe(event, {\n callback: callback,\n async: async,\n once: true\n });\n },\n unsubscribe: function(eventName, callback) {\n var event;\n\n if (eventName) {\n event = getEvent(eventName);\n if (event && callback) {\n event.subscribers = event.subscribers.filter(function(subscriber){\n return subscriber.callback !== callback;\n });\n } else {\n event.subscribers = [];\n }\n } else {\n clearEvents();\n }\n }\n };\n}();\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/events.js\n **/","const merge = require('lodash/object/merge');\n\nvar streamRef,\n loadedDataHandler;\n\n/**\n * Wraps browser-specific getUserMedia\n * @param {Object} constraints\n * @param {Object} success Callback\n * @param {Object} failure Callback\n */\nfunction getUserMedia(constraints, success, failure) {\n if (typeof navigator.getUserMedia !== 'undefined') {\n navigator.getUserMedia(constraints, function (stream) {\n streamRef = stream;\n var videoSrc = (window.URL && window.URL.createObjectURL(stream)) || stream;\n success.apply(null, [videoSrc]);\n }, failure);\n } else {\n failure(new TypeError(\"getUserMedia not available\"));\n }\n}\n\nfunction loadedData(video, callback) {\n var attempts = 10;\n\n function checkVideo() {\n if (attempts > 0) {\n if (video.videoWidth > 0 && video.videoHeight > 0) {\n console.log(video.videoWidth + \"px x \" + video.videoHeight + \"px\");\n callback();\n } else {\n window.setTimeout(checkVideo, 500);\n }\n } else {\n callback('Unable to play video stream. 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\"none\";\n }\n }\n }\n }\n}\n\nfunction initInputStream(cb) {\n var video;\n if (_config.inputStream.type == \"VideoStream\") {\n video = document.createElement(\"video\");\n _inputStream = InputStream.createVideoStream(video);\n } else if (_config.inputStream.type == \"ImageStream\") {\n _inputStream = InputStream.createImageStream();\n } else if (_config.inputStream.type == \"LiveStream\") {\n var $viewport = document.querySelector(\"#interactive.viewport\");\n if ($viewport) {\n video = $viewport.querySelector(\"video\");\n if (!video) {\n video = document.createElement(\"video\");\n $viewport.appendChild(video);\n }\n }\n _inputStream = InputStream.createLiveStream(video);\n CameraAccess.request(video, _config.inputStream.constraints, function(err) {\n if (!err) {\n _inputStream.trigger(\"canrecord\");\n } else {\n return cb(err);\n }\n });\n }\n\n _inputStream.setAttribute(\"preload\", \"auto\");\n _inputStream.setAttribute(\"autoplay\", true);\n _inputStream.setInputStream(_config.inputStream);\n _inputStream.addEventListener(\"canrecord\", canRecord.bind(undefined, cb));\n}\n\nfunction canRecord(cb) {\n BarcodeLocator.checkImageConstraints(_inputStream, _config.locator);\n initCanvas();\n _framegrabber = FrameGrabber.create(_inputStream, _canvasContainer.dom.image);\n initConfig();\n\n if (_config.numOfWorkers > 0) {\n initWorkers(function() {\n console.log(\"Workers created\");\n ready(cb);\n });\n } else {\n initializeData();\n ready(cb);\n }\n}\n\nfunction ready(cb){\n _inputStream.play();\n cb();\n}\n\nfunction initCanvas() {\n if (typeof document !== \"undefined\") {\n var $viewport = document.querySelector(\"#interactive.viewport\");\n _canvasContainer.dom.image = document.querySelector(\"canvas.imgBuffer\");\n if (!_canvasContainer.dom.image) {\n _canvasContainer.dom.image = document.createElement(\"canvas\");\n _canvasContainer.dom.image.className = \"imgBuffer\";\n if ($viewport && _config.inputStream.type == \"ImageStream\") {\n $viewport.appendChild(_canvasContainer.dom.image);\n }\n }\n _canvasContainer.ctx.image = _canvasContainer.dom.image.getContext(\"2d\");\n _canvasContainer.dom.image.width = _inputStream.getCanvasSize().x;\n _canvasContainer.dom.image.height = _inputStream.getCanvasSize().y;\n\n _canvasContainer.dom.overlay = document.querySelector(\"canvas.drawingBuffer\");\n if (!_canvasContainer.dom.overlay) {\n _canvasContainer.dom.overlay = document.createElement(\"canvas\");\n _canvasContainer.dom.overlay.className = \"drawingBuffer\";\n if ($viewport) {\n $viewport.appendChild(_canvasContainer.dom.overlay);\n }\n var clearFix = document.createElement(\"br\");\n clearFix.setAttribute(\"clear\", \"all\");\n if ($viewport) {\n $viewport.appendChild(clearFix);\n }\n }\n _canvasContainer.ctx.overlay = _canvasContainer.dom.overlay.getContext(\"2d\");\n _canvasContainer.dom.overlay.width = _inputStream.getCanvasSize().x;\n _canvasContainer.dom.overlay.height = _inputStream.getCanvasSize().y;\n }\n}\n\nfunction initBuffers(imageWrapper) {\n if (imageWrapper) {\n _inputImageWrapper = imageWrapper;\n } else {\n _inputImageWrapper = new ImageWrapper({\n x : _inputStream.getWidth(),\n y : _inputStream.getHeight()\n });\n }\n\n console.log(_inputImageWrapper.size);\n _boxSize = [\n vec2.clone([0, 0]),\n vec2.clone([0, _inputImageWrapper.size.y]),\n vec2.clone([_inputImageWrapper.size.x, _inputImageWrapper.size.y]),\n vec2.clone([_inputImageWrapper.size.x, 0])\n ];\n BarcodeLocator.init(_inputImageWrapper, _config.locator);\n}\n\nfunction getBoundingBoxes() {\n if (_config.locate) {\n return BarcodeLocator.locate();\n } else {\n return [[\n vec2.clone(_boxSize[0]),\n vec2.clone(_boxSize[1]),\n vec2.clone(_boxSize[2]),\n vec2.clone(_boxSize[3])]];\n }\n}\n\nfunction transformResult(result) {\n var topRight = _inputStream.getTopRight(),\n xOffset = topRight.x,\n yOffset = topRight.y,\n i;\n\n if (!result || (xOffset === 0 && yOffset === 0)) {\n return;\n }\n\n\n if (result.line && result.line.length === 2) {\n moveLine(result.line);\n }\n if (result.boxes && result.boxes.length > 0) {\n for (i = 0; i < result.boxes.length; i++) {\n moveBox(result.boxes[i]);\n }\n }\n\n function moveBox(box) {\n var corner = box.length;\n\n while(corner--) {\n box[corner][0] += xOffset;\n box[corner][1] += yOffset;\n }\n }\n\n function moveLine(line) {\n line[0].x += xOffset;\n line[0].y += yOffset;\n line[1].x += xOffset;\n line[1].y += yOffset;\n }\n}\n\nfunction publishResult(result, imageData) {\n if (_onUIThread) {\n transformResult(result);\n if (imageData && result && result.codeResult) {\n if (_resultCollector) {\n _resultCollector.addResult(imageData, _inputStream.getCanvasSize(), result.codeResult);\n }\n }\n }\n\n Events.publish(\"processed\", result);\n if (result && result.codeResult) {\n Events.publish(\"detected\", result);\n }\n}\n\nfunction locateAndDecode() {\n var result,\n boxes;\n\n boxes = getBoundingBoxes();\n if (boxes) {\n result = _decoder.decodeFromBoundingBoxes(boxes);\n result = result || {};\n result.boxes = boxes;\n publishResult(result, _inputImageWrapper.data);\n } else {\n publishResult();\n }\n}\n\nfunction update() {\n var availableWorker;\n\n if (_onUIThread) {\n if (_workerPool.length > 0) {\n availableWorker = _workerPool.filter(function(workerThread) {\n return !workerThread.busy;\n })[0];\n if (availableWorker) {\n _framegrabber.attachData(availableWorker.imageData);\n } else {\n return; // all workers are busy\n }\n } else {\n _framegrabber.attachData(_inputImageWrapper.data);\n }\n if (_framegrabber.grab()) {\n if (availableWorker) {\n availableWorker.busy = true;\n availableWorker.worker.postMessage({\n cmd: 'process',\n imageData: availableWorker.imageData\n }, [availableWorker.imageData.buffer]);\n } else {\n locateAndDecode();\n }\n }\n } else {\n locateAndDecode();\n }\n}\n\nfunction start() {\n _stopped = false;\n ( function frame() {\n if (!_stopped) {\n update();\n if (_onUIThread && _config.inputStream.type == \"LiveStream\") {\n window.requestAnimFrame(frame);\n }\n }\n }());\n}\n\nfunction initWorkers(cb) {\n var i;\n _workerPool = [];\n\n for (i = 0; i < _config.numOfWorkers; i++) {\n initWorker(workerInitialized);\n }\n\n function workerInitialized(workerThread) {\n _workerPool.push(workerThread);\n if (_workerPool.length >= _config.numOfWorkers){\n cb();\n }\n }\n}\n\nfunction initWorker(cb) {\n var blobURL,\n workerThread = {\n worker: undefined,\n imageData: new Uint8Array(_inputStream.getWidth() * _inputStream.getHeight()),\n busy: true\n };\n\n blobURL = generateWorkerBlob();\n workerThread.worker = new Worker(blobURL);\n\n workerThread.worker.onmessage = function(e) {\n if (e.data.event === 'initialized') {\n URL.revokeObjectURL(blobURL);\n workerThread.busy = false;\n workerThread.imageData = new Uint8Array(e.data.imageData);\n console.log(\"Worker initialized\");\n return cb(workerThread);\n } else if (e.data.event === 'processed') {\n workerThread.imageData = new Uint8Array(e.data.imageData);\n workerThread.busy = false;\n publishResult(e.data.result, workerThread.imageData);\n } else if (e.data.event === 'error') {\n console.log(\"Worker error: \" + e.data.message);\n }\n };\n\n workerThread.worker.postMessage({\n cmd: 'init',\n size: {x: _inputStream.getWidth(), y: _inputStream.getHeight()},\n imageData: workerThread.imageData,\n config: _config\n }, [workerThread.imageData.buffer]);\n}\n\n\nfunction workerInterface(factory) {\n window = self;\n if (factory) {\n /* jshint ignore:start */\n var Quagga = factory();\n if (!Quagga) {\n self.postMessage({'event': 'error', message: 'Quagga could not be created'});\n return;\n }\n /* jshint ignore:end */\n }\n /* jshint ignore:start */\n var imageWrapper;\n\n self.onmessage = function(e) {\n if (e.data.cmd === 'init') {\n var config = e.data.config;\n config.numOfWorkers = 0;\n imageWrapper = new Quagga.ImageWrapper({\n x : e.data.size.x,\n y : e.data.size.y\n }, new Uint8Array(e.data.imageData));\n Quagga.init(config, ready, imageWrapper);\n Quagga.onProcessed(onProcessed);\n } else if (e.data.cmd === 'process') {\n imageWrapper.data = new Uint8Array(e.data.imageData);\n Quagga.start();\n } else if (e.data.cmd === 'setReaders') {\n Quagga.setReaders(e.data.readers);\n }\n };\n\n function onProcessed(result) {\n self.postMessage({'event': 'processed', imageData: imageWrapper.data, result: result}, [imageWrapper.data.buffer]);\n }\n\n function ready() {\n self.postMessage({'event': 'initialized', imageData: imageWrapper.data}, [imageWrapper.data.buffer]);\n }\n /* jshint ignore:end */\n}\n\nfunction generateWorkerBlob() {\n var blob,\n factorySource;\n\n /* jshint ignore:start */\n if (typeof __factorySource__ !== 'undefined') {\n factorySource = __factorySource__;\n }\n /* jshint ignore:end */\n\n blob = new Blob(['(' + workerInterface.toString() + ')(' + factorySource + ');'],\n {type : 'text/javascript'});\n\n return window.URL.createObjectURL(blob);\n}\n\nfunction setReaders(readers) {\n if (_decoder) {\n _decoder.setReaders(readers);\n } else if (_onUIThread && _workerPool.length > 0) {\n _workerPool.forEach(function(workerThread) {\n workerThread.worker.postMessage({cmd: 'setReaders', readers: readers});\n });\n }\n}\n\nexport default {\n init : function(config, cb, imageWrapper) {\n _config = merge({}, Config, config);\n if (imageWrapper) {\n _onUIThread = false;\n initializeData(imageWrapper);\n return cb();\n } else {\n initInputStream(cb);\n }\n },\n start : function() {\n start();\n },\n stop : function() {\n _stopped = true;\n _workerPool.forEach(function(workerThread) {\n workerThread.worker.terminate();\n console.log(\"Worker terminated!\");\n });\n _workerPool.length = 0;\n if (_config.inputStream.type === \"LiveStream\") {\n CameraAccess.release();\n _inputStream.clearEventHandlers();\n }\n },\n pause: function() {\n _stopped = true;\n },\n onDetected : function(callback) {\n Events.subscribe(\"detected\", callback);\n },\n offDetected: function(callback) {\n Events.unsubscribe(\"detected\", callback);\n },\n onProcessed: function(callback) {\n Events.subscribe(\"processed\", callback);\n },\n offProcessed: function(callback) {\n Events.unsubscribe(\"processed\", callback);\n },\n setReaders: function(readers) {\n setReaders(readers);\n },\n registerResultCollector: function(resultCollector) {\n if (resultCollector && typeof resultCollector.addResult === 'function') {\n _resultCollector = resultCollector;\n }\n },\n canvas : _canvasContainer,\n decodeSingle : function(config, resultCallback) {\n config = merge({\n inputStream: {\n type : \"ImageStream\",\n sequence : false,\n size: 800,\n src: config.src\n },\n numOfWorkers: 1,\n locator: {\n halfSample: false\n }\n }, config);\n this.init(config, function() {\n Events.once(\"processed\", function(result) {\n _stopped = true;\n resultCallback.call(null, result);\n }, true);\n start();\n });\n },\n ImageWrapper: ImageWrapper,\n ImageDebug: ImageDebug,\n ResultCollector: ResultCollector\n};\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/quagga.js\n **/","/*\n * typedefs.js\n * Normalizes browser-specific prefixes\n */\n\nif (typeof window !== 'undefined') {\n window.requestAnimFrame = (function () {\n return window.requestAnimationFrame ||\n window.webkitRequestAnimationFrame ||\n window.mozRequestAnimationFrame ||\n window.oRequestAnimationFrame ||\n window.msRequestAnimationFrame ||\n function (/* function FrameRequestCallback */ callback) {\n window.setTimeout(callback, 1000 / 60);\n };\n })();\n\n navigator.getUserMedia = navigator.getUserMedia ||\n navigator.webkitGetUserMedia || navigator.mozGetUserMedia || navigator.msGetUserMedia;\n window.URL = window.URL || window.webkitURL || window.mozURL || window.msURL;\n}\nMath.imul = Math.imul || function(a, b) {\n var ah = (a >>> 16) & 0xffff,\n al = a & 0xffff,\n bh = (b >>> 16) & 0xffff,\n bl = b & 0xffff;\n // the shift by 0 fixes the sign on the high part\n // the final |0 converts the unsigned value into a signed value\n return ((al * bl) + (((ah * bl + al * bh) << 16) >>> 0) | 0);\n};\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/typedefs.js\n **/","import ImageLoader from './image_loader';\n\nvar InputStream = {};\nInputStream.createVideoStream = function(video) {\n var that = {},\n _config = null,\n _eventNames = ['canrecord', 'ended'],\n _eventHandlers = {},\n _calculatedWidth,\n _calculatedHeight,\n _topRight = {x: 0, y: 0},\n _canvasSize = {x: 0, y: 0};\n\n function initSize() {\n var width = video.videoWidth,\n height = video.videoHeight;\n\n _calculatedWidth = _config.size ? width/height > 1 ? _config.size : Math.floor((width/height) * _config.size) : width;\n _calculatedHeight = _config.size ? width/height > 1 ? Math.floor((height/width) * _config.size) : _config.size : height;\n\n _canvasSize.x = _calculatedWidth;\n _canvasSize.y = _calculatedHeight;\n }\n\n that.getRealWidth = function() {\n return video.videoWidth;\n };\n\n that.getRealHeight = function() {\n return video.videoHeight;\n };\n\n that.getWidth = function() {\n return _calculatedWidth;\n };\n\n that.getHeight = function() {\n return _calculatedHeight;\n };\n\n that.setWidth = function(width) {\n _calculatedWidth = width;\n };\n\n that.setHeight = function(height) {\n _calculatedHeight = height;\n };\n\n that.setInputStream = function(config) {\n _config = config;\n video.src = (typeof config.src !== 'undefined') ? config.src : '';\n };\n\n that.ended = function() {\n return video.ended;\n };\n\n that.getConfig = function() {\n return _config;\n };\n\n that.setAttribute = function(name, value) {\n video.setAttribute(name, value);\n };\n\n that.pause = function() {\n video.pause();\n };\n\n that.play = function() {\n video.play();\n };\n\n that.setCurrentTime = function(time) {\n if (_config.type !== \"LiveStream\")\n video.currentTime = time;\n };\n\n that.addEventListener = function(event, f, bool) {\n if (_eventNames.indexOf(event) !== -1) {\n if (!_eventHandlers[event]) {\n _eventHandlers[event] = [];\n }\n _eventHandlers[event].push(f);\n } else {\n video.addEventListener(event, f, bool);\n }\n };\n\n that.clearEventHandlers = function() {\n _eventNames.forEach(function(eventName) {\n var handlers = _eventHandlers[eventName];\n if (handlers && handlers.length > 0) {\n handlers.forEach(function(handler) {\n video.removeEventListener(eventName, handler);\n });\n }\n });\n };\n\n that.trigger = function(eventName, args) {\n var j,\n handlers = _eventHandlers[eventName];\n\n if (eventName === 'canrecord') {\n initSize();\n }\n if (handlers && handlers.length > 0) {\n for ( j = 0; j < handlers.length; j++) {\n handlers[j].apply(that, args);\n }\n }\n };\n\n that.setTopRight = function(topRight) {\n _topRight.x = topRight.x;\n _topRight.y = topRight.y;\n };\n\n that.getTopRight = function() {\n return _topRight;\n };\n\n that.setCanvasSize = function(size) {\n _canvasSize.x = size.x;\n _canvasSize.y = size.y;\n };\n\n that.getCanvasSize = function() {\n return _canvasSize;\n };\n\n that.getFrame = function() {\n return video;\n };\n\n return that;\n};\n\nInputStream.createLiveStream = function(video) {\n video.setAttribute(\"autoplay\", true);\n var that = InputStream.createVideoStream(video);\n\n that.ended = function() {\n return false;\n };\n\n return that;\n};\n\nInputStream.createImageStream = function() {\n var that = {};\n var _config = null;\n\n var width = 0,\n height = 0,\n frameIdx = 0,\n paused = true,\n loaded = false,\n imgArray = null,\n size = 0,\n offset = 1,\n baseUrl = null,\n ended = false,\n calculatedWidth,\n calculatedHeight,\n _eventNames = ['canrecord', 'ended'],\n _eventHandlers = {},\n _topRight = {x: 0, y: 0},\n _canvasSize = {x: 0, y: 0};\n\n function loadImages() {\n loaded = false;\n ImageLoader.load(baseUrl, function(imgs) {\n imgArray = imgs;\n width = imgs[0].width;\n height = imgs[0].height;\n calculatedWidth = _config.size ? width/height > 1 ? _config.size : Math.floor((width/height) * _config.size) : width;\n calculatedHeight = _config.size ? width/height > 1 ? Math.floor((height/width) * _config.size) : _config.size : height;\n _canvasSize.x = calculatedWidth;\n _canvasSize.y = calculatedHeight;\n loaded = true;\n frameIdx = 0;\n setTimeout(function() {\n publishEvent(\"canrecord\", []);\n }, 0);\n }, offset, size, _config.sequence);\n }\n\n function publishEvent(eventName, args) {\n var j,\n handlers = _eventHandlers[eventName];\n\n if (handlers && handlers.length > 0) {\n for ( j = 0; j < handlers.length; j++) {\n handlers[j].apply(that, args);\n }\n }\n }\n\n\n that.trigger = publishEvent;\n\n that.getWidth = function() {\n return calculatedWidth;\n };\n\n that.getHeight = function() {\n return calculatedHeight;\n };\n\n that.setWidth = function(width) {\n calculatedWidth = width;\n };\n\n that.setHeight = function(height) {\n calculatedHeight = height;\n };\n\n that.getRealWidth = function() {\n return width;\n };\n\n that.getRealHeight = function() {\n return height;\n };\n\n that.setInputStream = function(stream) {\n _config = stream;\n if (stream.sequence === false) {\n baseUrl = stream.src;\n size = 1;\n } else {\n baseUrl = stream.src;\n size = stream.length;\n }\n loadImages();\n };\n\n that.ended = function() {\n return ended;\n };\n\n that.setAttribute = function() {};\n\n that.getConfig = function() {\n return _config;\n };\n\n that.pause = function() {\n paused = true;\n };\n\n that.play = function() {\n paused = false;\n };\n\n that.setCurrentTime = function(time) {\n frameIdx = time;\n };\n\n that.addEventListener = function(event, f) {\n if (_eventNames.indexOf(event) !== -1) {\n if (!_eventHandlers[event]) {\n _eventHandlers[event] = [];\n }\n _eventHandlers[event].push(f);\n }\n };\n\n that.setTopRight = function(topRight) {\n _topRight.x = topRight.x;\n _topRight.y = topRight.y;\n };\n\n that.getTopRight = function() {\n return _topRight;\n };\n\n that.setCanvasSize = function(size) {\n _canvasSize.x = size.x;\n _canvasSize.y = size.y;\n };\n\n that.getCanvasSize = function() {\n return _canvasSize;\n };\n\n that.getFrame = function() {\n var frame;\n\n if (!loaded){\n return null;\n }\n if (!paused) {\n frame = imgArray[frameIdx];\n if (frameIdx < (size - 1)) {\n frameIdx++;\n } else {\n setTimeout(function() {\n ended = true;\n publishEvent(\"ended\", []);\n }, 0);\n }\n }\n return frame;\n };\n\n return that;\n};\n\nexport default InputStream;\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/input_stream.js\n **/","var ImageLoader = {};\nImageLoader.load = function(directory, callback, offset, size, sequence) {\n var htmlImagesSrcArray = new Array(size),\n htmlImagesArray = new Array(htmlImagesSrcArray.length),\n i,\n img,\n num;\n\n if (sequence === false) {\n htmlImagesSrcArray[0] = directory;\n } else {\n for ( i = 0; i < htmlImagesSrcArray.length; i++) {\n num = (offset + i);\n htmlImagesSrcArray[i] = directory + \"image-\" + (\"00\" + num).slice(-3) + \".jpg\";\n }\n }\n htmlImagesArray.notLoaded = [];\n htmlImagesArray.addImage = function(img) {\n htmlImagesArray.notLoaded.push(img);\n };\n htmlImagesArray.loaded = function(loadedImg) {\n var notloadedImgs = htmlImagesArray.notLoaded;\n for (var x = 0; x < notloadedImgs.length; x++) {\n if (notloadedImgs[x] == loadedImg) {\n notloadedImgs.splice(x, 1);\n for (var y = 0; y < htmlImagesSrcArray.length; y++) {\n var imgName = htmlImagesSrcArray[y].substr(htmlImagesSrcArray[y].lastIndexOf(\"/\"));\n if (loadedImg.src.lastIndexOf(imgName) != -1) {\n htmlImagesArray[y] = loadedImg;\n break;\n }\n }\n break;\n }\n }\n if (notloadedImgs.length === 0) {\n console.log(\"Images loaded\");\n callback.apply(null, [htmlImagesArray]);\n }\n };\n\n for ( i = 0; i < htmlImagesSrcArray.length; i++) {\n img = new Image();\n htmlImagesArray.addImage(img);\n addOnloadHandler(img, htmlImagesArray);\n img.src = htmlImagesSrcArray[i];\n }\n};\n\nfunction addOnloadHandler(img, htmlImagesArray) {\n img.onload = function() {\n htmlImagesArray.loaded(this);\n };\n}\n\nexport default (ImageLoader);\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/image_loader.js\n **/","import SubImage from './subImage';\nimport CVUtils from './cv_utils';\nimport ArrayHelper from './array_helper';\nimport {vec2, mat2} from 'gl-matrix';\n\n/**\n * Represents a basic image combining the data and size.\n * In addition, some methods for manipulation are contained.\n * @param size {x,y} The size of the image in pixel\n * @param data {Array} If given, a flat array containing the pixel data\n * @param ArrayType {Type} If given, the desired DataType of the Array (may be typed/non-typed)\n * @param initialize {Boolean} Indicating if the array should be initialized on creation.\n * @returns {ImageWrapper}\n */\nfunction ImageWrapper(size, data, ArrayType, initialize) {\n if (!data) {\n if (ArrayType) {\n this.data = new ArrayType(size.x * size.y);\n if (ArrayType === Array && initialize) {\n ArrayHelper.init(this.data, 0);\n }\n } else {\n this.data = new Uint8Array(size.x * size.y);\n if (Uint8Array === Array && initialize) {\n ArrayHelper.init(this.data, 0);\n }\n }\n\n } else {\n this.data = data;\n }\n this.size = size;\n}\n\n/**\n * tests if a position is within the image with a given offset\n * @param imgRef {x, y} The location to test\n * @param border Number the padding value in pixel\n * @returns {Boolean} true if location inside the image's border, false otherwise\n * @see cvd/image.h\n */\nImageWrapper.prototype.inImageWithBorder = function(imgRef, border) {\n return (imgRef.x >= border) && (imgRef.y >= border) && (imgRef.x < (this.size.x - border)) && (imgRef.y < (this.size.y - border));\n};\n\n/**\n * Transforms an image according to the given affine-transformation matrix.\n * @param inImg ImageWrapper a image containing the information to be extracted.\n * @param outImg ImageWrapper the image to be filled. The whole image out image is filled by the in image.\n * @param M mat2 the matrix used to map point in the out matrix to those in the in matrix\n * @param inOrig vec2 origin in the in image\n * @param outOrig vec2 origin in the out image\n * @returns Number the number of pixels not in the in image\n * @see cvd/vision.h\n */\nImageWrapper.transform = function(inImg, outImg, M, inOrig, outOrig) {\n var w = outImg.size.x, h = outImg.size.y, iw = inImg.size.x, ih = inImg.size.y;\n var across = vec2.clone([M[0], M[2]]);\n var down = vec2.clone([M[1], M[3]]);\n var defaultValue = 0;\n\n var p0 = vec2.subtract(inOrig, mat2.xVec2(M, outOrig, vec2.clone()), vec2.clone());\n\n var min_x = p0[0], min_y = p0[1];\n var max_x = min_x, max_y = min_y;\n var p, i, j;\n\n var sampleFunc = ImageWrapper.sample;\n\n if (across[0] < 0)\n min_x += w * across[0];\n else\n max_x += w * across[0];\n\n if (down[0] < 0)\n min_x += h * down[0];\n else\n max_x += h * down[0];\n\n if (across[1] < 0)\n min_y += w * across[1];\n else\n max_y += w * across[1];\n\n if (down[1] < 0)\n min_y += h * down[1];\n else\n max_y += h * down[1];\n\n var carrigeReturn = vec2.subtract(down, vec2.scale(across, w, vec2.clone()), vec2.clone());\n\n if (min_x >= 0 && min_y >= 0 && max_x < iw - 1 && max_y < ih - 1) {\n p = p0;\n for ( i = 0; i < h; ++i, vec2.add(p, carrigeReturn))\n for ( j = 0; j < w; ++j, vec2.add(p, across))\n outImg.set(j, i, sampleFunc(inImg, p[0], p[1]));\n return 0;\n } else {\n var x_bound = iw - 1;\n var y_bound = ih - 1;\n var count = 0;\n p = p0;\n for ( i = 0; i < h; ++i, vec2.add(p, carrigeReturn)) {\n for ( j = 0; j < w; ++j, vec2.add(p, across)) {\n if (0 <= p[0] && 0 <= p[1] && p[0] < x_bound && p[1] < y_bound) {\n outImg.set(j, i, sampleFunc(inImg, p[0], p[1]));\n } else {\n outImg.set(j, i, defaultValue); ++count;\n }\n }\n }\n return count;\n }\n};\n\n/**\n * Performs bilinear sampling\n * @param inImg Image to extract sample from\n * @param x the x-coordinate\n * @param y the y-coordinate\n * @returns the sampled value\n * @see cvd/vision.h\n */\nImageWrapper.sample = function(inImg, x, y) {\n var lx = Math.floor(x);\n var ly = Math.floor(y);\n var w = inImg.size.x;\n var base = ly * inImg.size.x + lx;\n var a = inImg.data[base + 0];\n var b = inImg.data[base + 1];\n var c = inImg.data[base + w];\n var d = inImg.data[base + w + 1];\n var e = a - b;\n x -= lx;\n y -= ly;\n\n var result = Math.floor(x * (y * (e - c + d) - e) + y * (c - a) + a);\n return result;\n};\n\n/**\n * Initializes a given array. Sets each element to zero.\n * @param array {Array} The array to initialize\n */\nImageWrapper.clearArray = function(array) {\n var l = array.length;\n while (l--) {\n array[l] = 0;\n }\n};\n\n/**\n * Creates a {SubImage} from the current image ({this}).\n * @param from {ImageRef} The position where to start the {SubImage} from. (top-left corner)\n * @param size {ImageRef} The size of the resulting image\n * @returns {SubImage} A shared part of the original image\n */\nImageWrapper.prototype.subImage = function(from, size) {\n return new SubImage(from, size, this);\n};\n\n/**\n * Creates an {ImageWrapper) and copies the needed underlying image-data area\n * @param imageWrapper {ImageWrapper} The target {ImageWrapper} where the data should be copied\n * @param from {ImageRef} The location where to copy from (top-left location)\n */\nImageWrapper.prototype.subImageAsCopy = function(imageWrapper, from) {\n var sizeY = imageWrapper.size.y, sizeX = imageWrapper.size.x;\n var x, y;\n for ( x = 0; x < sizeX; x++) {\n for ( y = 0; y < sizeY; y++) {\n imageWrapper.data[y * sizeX + x] = this.data[(from.y + y) * this.size.x + from.x + x];\n }\n }\n};\n\nImageWrapper.prototype.copyTo = function(imageWrapper) {\n var length = this.data.length, srcData = this.data, dstData = imageWrapper.data;\n\n while (length--) {\n dstData[length] = srcData[length];\n }\n};\n\n/**\n * Retrieves a given pixel position from the image\n * @param x {Number} The x-position\n * @param y {Number} The y-position\n * @returns {Number} The grayscale value at the pixel-position\n */\nImageWrapper.prototype.get = function(x, y) {\n return this.data[y * this.size.x + x];\n};\n\n/**\n * Retrieves a given pixel position from the image\n * @param x {Number} The x-position\n * @param y {Number} The y-position\n * @returns {Number} The grayscale value at the pixel-position\n */\nImageWrapper.prototype.getSafe = function(x, y) {\n var i;\n\n if (!this.indexMapping) {\n this.indexMapping = {\n x : [],\n y : []\n };\n for (i = 0; i < this.size.x; i++) {\n this.indexMapping.x[i] = i;\n this.indexMapping.x[i + this.size.x] = i;\n }\n for (i = 0; i < this.size.y; i++) {\n this.indexMapping.y[i] = i;\n this.indexMapping.y[i + this.size.y] = i;\n }\n }\n return this.data[(this.indexMapping.y[y + this.size.y]) * this.size.x + this.indexMapping.x[x + this.size.x]];\n};\n\n/**\n * Sets a given pixel position in the image\n * @param x {Number} The x-position\n * @param y {Number} The y-position\n * @param value {Number} The grayscale value to set\n * @returns {ImageWrapper} The Image itself (for possible chaining)\n */\nImageWrapper.prototype.set = function(x, y, value) {\n this.data[y * this.size.x + x] = value;\n return this;\n};\n\n/**\n * Sets the border of the image (1 pixel) to zero\n */\nImageWrapper.prototype.zeroBorder = function() {\n var i, width = this.size.x, height = this.size.y, data = this.data;\n for ( i = 0; i < width; i++) {\n data[i] = data[(height - 1) * width + i] = 0;\n }\n for ( i = 1; i < height - 1; i++) {\n data[i * width] = data[i * width + (width - 1)] = 0;\n }\n};\n\n/**\n * Inverts a binary image in place\n */\nImageWrapper.prototype.invert = function() {\n var data = this.data, length = data.length;\n\n while (length--) {\n data[length] = data[length] ? 0 : 1;\n }\n\n};\n\nImageWrapper.prototype.convolve = function(kernel) {\n var x, y, kx, ky, kSize = (kernel.length / 2) | 0, accu = 0;\n for ( y = 0; y < this.size.y; y++) {\n for ( x = 0; x < this.size.x; x++) {\n accu = 0;\n for ( ky = -kSize; ky <= kSize; ky++) {\n for ( kx = -kSize; kx <= kSize; kx++) {\n accu += kernel[ky+kSize][kx + kSize] * this.getSafe(x + kx, y + ky);\n }\n }\n this.data[y * this.size.x + x] = accu;\n }\n }\n};\n\nImageWrapper.prototype.moments = function(labelcount) {\n var data = this.data,\n x,\n y,\n height = this.size.y,\n width = this.size.x,\n val,\n ysq,\n labelsum = [],\n i,\n label,\n mu11,\n mu02,\n mu20,\n x_,\n y_,\n tmp,\n result = [],\n PI = Math.PI,\n PI_4 = PI / 4;\n\n if (labelcount <= 0) {\n return result;\n }\n\n for ( i = 0; i < labelcount; i++) {\n labelsum[i] = {\n m00 : 0,\n m01 : 0,\n m10 : 0,\n m11 : 0,\n m02 : 0,\n m20 : 0,\n theta : 0,\n rad : 0\n };\n }\n\n for ( y = 0; y < height; y++) {\n ysq = y * y;\n for ( x = 0; x < width; x++) {\n val = data[y * width + x];\n if (val > 0) {\n label = labelsum[val - 1];\n label.m00 += 1;\n label.m01 += y;\n label.m10 += x;\n label.m11 += x * y;\n label.m02 += ysq;\n label.m20 += x * x;\n }\n }\n }\n\n for ( i = 0; i < labelcount; i++) {\n label = labelsum[i];\n if (!isNaN(label.m00) && label.m00 !== 0) {\n x_ = label.m10 / label.m00;\n y_ = label.m01 / label.m00;\n mu11 = label.m11 / label.m00 - x_ * y_;\n mu02 = label.m02 / label.m00 - y_ * y_;\n mu20 = label.m20 / label.m00 - x_ * x_;\n tmp = (mu02 - mu20) / (2 * mu11);\n tmp = 0.5 * Math.atan(tmp) + (mu11 >= 0 ? PI_4 : -PI_4 ) + PI;\n label.theta = (tmp * 180 / PI + 90) % 180 - 90;\n if (label.theta < 0) {\n label.theta += 180;\n }\n label.rad = tmp > PI ? tmp - PI : tmp;\n label.vec = vec2.clone([Math.cos(tmp), Math.sin(tmp)]);\n result.push(label);\n }\n }\n\n return result;\n};\n\n/**\n * Displays the {ImageWrapper} in a given canvas\n * @param canvas {Canvas} The canvas element to write to\n * @param scale {Number} Scale which is applied to each pixel-value\n */\nImageWrapper.prototype.show = function(canvas, scale) {\n var ctx,\n frame,\n data,\n current,\n pixel,\n x,\n y;\n\n if (!scale) {\n scale = 1.0;\n }\n ctx = canvas.getContext('2d');\n canvas.width = this.size.x;\n canvas.height = this.size.y;\n frame = ctx.getImageData(0, 0, canvas.width, canvas.height);\n data = frame.data;\n current = 0;\n for (y = 0; y < this.size.y; y++) {\n for (x = 0; x < this.size.x; x++) {\n pixel = y * this.size.x + x;\n current = this.get(x, y) * scale;\n data[pixel * 4 + 0] = current;\n data[pixel * 4 + 1] = current;\n data[pixel * 4 + 2] = current;\n data[pixel * 4 + 3] = 255;\n }\n }\n //frame.data = data;\n ctx.putImageData(frame, 0, 0);\n};\n\n/**\n * Displays the {SubImage} in a given canvas\n * @param canvas {Canvas} The canvas element to write to\n * @param scale {Number} Scale which is applied to each pixel-value\n */\nImageWrapper.prototype.overlay = function(canvas, scale, from) {\n if (!scale || scale < 0 || scale > 360) {\n scale = 360;\n }\n var hsv = [0, 1, 1];\n var rgb = [0, 0, 0];\n var whiteRgb = [255, 255, 255];\n var blackRgb = [0, 0, 0];\n var result = [];\n var ctx = canvas.getContext('2d');\n var frame = ctx.getImageData(from.x, from.y, this.size.x, this.size.y);\n var data = frame.data;\n var length = this.data.length;\n while (length--) {\n hsv[0] = this.data[length] * scale;\n result = hsv[0] <= 0 ? whiteRgb : hsv[0] >= 360 ? blackRgb : CVUtils.hsv2rgb(hsv, rgb);\n data[length * 4 + 0] = result[0];\n data[length * 4 + 1] = result[1];\n data[length * 4 + 2] = result[2];\n data[length * 4 + 3] = 255;\n }\n ctx.putImageData(frame, from.x, from.y);\n};\n\nexport default ImageWrapper;\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/image_wrapper.js\n **/","/**\n * Construct representing a part of another {ImageWrapper}. Shares data\n * between the parent and the child.\n * @param from {ImageRef} The position where to start the {SubImage} from. (top-left corner)\n * @param size {ImageRef} The size of the resulting image\n * @param I {ImageWrapper} The {ImageWrapper} to share from\n * @returns {SubImage} A shared part of the original image\n */\nfunction SubImage(from, size, I) {\n if (!I) {\n I = {\n data : null,\n size : size\n };\n }\n this.data = I.data;\n this.originalSize = I.size;\n this.I = I;\n\n this.from = from;\n this.size = size;\n}\n\n/**\n * Displays the {SubImage} in a given canvas\n * @param canvas {Canvas} The canvas element to write to\n * @param scale {Number} Scale which is applied to each pixel-value\n */\nSubImage.prototype.show = function(canvas, scale) {\n var ctx,\n frame,\n data,\n current,\n y,\n x,\n pixel;\n\n if (!scale) {\n scale = 1.0;\n }\n ctx = canvas.getContext('2d');\n canvas.width = this.size.x;\n canvas.height = this.size.y;\n frame = ctx.getImageData(0, 0, canvas.width, canvas.height);\n data = frame.data;\n current = 0;\n for (y = 0; y < this.size.y; y++) {\n for (x = 0; x < this.size.x; x++) {\n pixel = y * this.size.x + x;\n current = this.get(x, y) * scale;\n data[pixel * 4 + 0] = current;\n data[pixel * 4 + 1] = current;\n data[pixel * 4 + 2] = current;\n data[pixel * 4 + 3] = 255;\n }\n }\n frame.data = data;\n ctx.putImageData(frame, 0, 0);\n};\n\n/**\n * Retrieves a given pixel position from the {SubImage}\n * @param x {Number} The x-position\n * @param y {Number} The y-position\n * @returns {Number} The grayscale value at the pixel-position\n */\nSubImage.prototype.get = function(x, y) {\n return this.data[(this.from.y + y) * this.originalSize.x + this.from.x + x];\n};\n\n/**\n * Updates the underlying data from a given {ImageWrapper}\n * @param image {ImageWrapper} The updated image\n */\nSubImage.prototype.updateData = function(image) {\n this.originalSize = image.size;\n this.data = image.data;\n};\n\n/**\n * Updates the position of the shared area\n * @param from {x,y} The new location\n * @returns {SubImage} returns {this} for possible chaining\n */\nSubImage.prototype.updateFrom = function(from) {\n this.from = from;\n return this;\n};\n\nexport default (SubImage);\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/subImage.js\n **/","import Cluster2 from './cluster';\nimport ArrayHelper from './array_helper';\nimport {vec2, vec3} from 'gl-matrix';\n\nvar CVUtils = {};\n\n/**\n * @param x x-coordinate\n * @param y y-coordinate\n * @return ImageReference {x,y} Coordinate\n */\nCVUtils.imageRef = function(x, y) {\n var that = {\n x : x,\n y : y,\n toVec2 : function() {\n return vec2.clone([this.x, this.y]);\n },\n toVec3 : function() {\n return vec3.clone([this.x, this.y, 1]);\n },\n round : function() {\n this.x = this.x > 0.0 ? Math.floor(this.x + 0.5) : Math.floor(this.x - 0.5);\n this.y = this.y > 0.0 ? Math.floor(this.y + 0.5) : Math.floor(this.y - 0.5);\n return this;\n }\n };\n return that;\n};\n\n/**\n * Computes an integral image of a given grayscale image.\n * @param imageDataContainer {ImageDataContainer} the image to be integrated\n */\nCVUtils.computeIntegralImage2 = function(imageWrapper, integralWrapper) {\n var imageData = imageWrapper.data;\n var width = imageWrapper.size.x;\n var height = imageWrapper.size.y;\n var integralImageData = integralWrapper.data;\n var sum = 0, posA = 0, posB = 0, posC = 0, posD = 0, x, y;\n\n // sum up first column\n posB = width;\n sum = 0;\n for ( y = 1; y < height; y++) {\n sum += imageData[posA];\n integralImageData[posB] += sum;\n posA += width;\n posB += width;\n }\n\n posA = 0;\n posB = 1;\n sum = 0;\n for ( x = 1; x < width; x++) {\n sum += imageData[posA];\n integralImageData[posB] += sum;\n posA++;\n posB++;\n }\n\n for ( y = 1; y < height; y++) {\n posA = y * width + 1;\n posB = (y - 1) * width + 1;\n posC = y * width;\n posD = (y - 1) * width;\n for ( x = 1; x < width; x++) {\n integralImageData[posA] += imageData[posA] + integralImageData[posB] + integralImageData[posC] - integralImageData[posD];\n posA++;\n posB++;\n posC++;\n posD++;\n }\n }\n};\n\nCVUtils.computeIntegralImage = function(imageWrapper, integralWrapper) {\n var imageData = imageWrapper.data;\n var width = imageWrapper.size.x;\n var height = imageWrapper.size.y;\n var integralImageData = integralWrapper.data;\n var sum = 0;\n\n // sum up first row\n for (var i = 0; i < width; i++) {\n sum += imageData[i];\n integralImageData[i] = sum;\n }\n\n for (var v = 1; v < height; v++) {\n sum = 0;\n for (var u = 0; u < width; u++) {\n sum += imageData[v * width + u];\n integralImageData[((v) * width) + u] = sum + integralImageData[(v - 1) * width + u];\n }\n }\n};\n\nCVUtils.thresholdImage = function(imageWrapper, threshold, targetWrapper) {\n if (!targetWrapper) {\n targetWrapper = imageWrapper;\n }\n var imageData = imageWrapper.data, length = imageData.length, targetData = targetWrapper.data;\n\n while (length--) {\n targetData[length] = imageData[length] < threshold ? 1 : 0;\n }\n};\n\nCVUtils.computeHistogram = function(imageWrapper, bitsPerPixel) {\n if (!bitsPerPixel) {\n bitsPerPixel = 8;\n }\n var imageData = imageWrapper.data,\n length = imageData.length,\n bitShift = 8 - bitsPerPixel,\n bucketCnt = 1 << bitsPerPixel,\n hist = new Int32Array(bucketCnt);\n\n while (length--) {\n hist[imageData[length] >> bitShift]++;\n }\n return hist;\n};\n\nCVUtils.sharpenLine = function(line) {\n var i,\n length = line.length,\n left = line[0],\n center = line[1],\n right;\n\n for (i = 1; i < length - 1; i++) {\n right = line[i + 1];\n // -1 4 -1 kernel\n line[i-1] = (((center * 2) - left - right)) & 255;\n left = center;\n center = right;\n }\n return line;\n};\n\nCVUtils.determineOtsuThreshold = function(imageWrapper, bitsPerPixel) {\n if (!bitsPerPixel) {\n bitsPerPixel = 8;\n }\n var hist,\n threshold,\n bitShift = 8 - bitsPerPixel;\n\n function px(init, end) {\n var sum = 0, i;\n for ( i = init; i <= end; i++) {\n sum += hist[i];\n }\n return sum;\n }\n\n function mx(init, end) {\n var i, sum = 0;\n\n for ( i = init; i <= end; i++) {\n sum += i * hist[i];\n }\n\n return sum;\n }\n\n function determineThreshold() {\n var vet = [0], p1, p2, p12, k, m1, m2, m12,\n max = (1 << bitsPerPixel) - 1;\n\n hist = CVUtils.computeHistogram(imageWrapper, bitsPerPixel);\n for ( k = 1; k < max; k++) {\n p1 = px(0, k);\n p2 = px(k + 1, max);\n p12 = p1 * p2;\n if (p12 === 0) {\n p12 = 1;\n }\n m1 = mx(0, k) * p2;\n m2 = mx(k + 1, max) * p1;\n m12 = m1 - m2;\n vet[k] = m12 * m12 / p12;\n }\n return ArrayHelper.maxIndex(vet);\n }\n\n threshold = determineThreshold();\n return threshold << bitShift;\n};\n\nCVUtils.otsuThreshold = function(imageWrapper, targetWrapper) {\n var threshold = CVUtils.determineOtsuThreshold(imageWrapper);\n\n CVUtils.thresholdImage(imageWrapper, threshold, targetWrapper);\n return threshold;\n};\n\n// local thresholding\nCVUtils.computeBinaryImage = function(imageWrapper, integralWrapper, targetWrapper) {\n CVUtils.computeIntegralImage(imageWrapper, integralWrapper);\n\n if (!targetWrapper) {\n targetWrapper = imageWrapper;\n }\n var imageData = imageWrapper.data;\n var targetData = targetWrapper.data;\n var width = imageWrapper.size.x;\n var height = imageWrapper.size.y;\n var integralImageData = integralWrapper.data;\n var sum = 0, v, u, kernel = 3, A, B, C, D, avg, size = (kernel * 2 + 1) * (kernel * 2 + 1);\n\n // clear out top & bottom-border\n for ( v = 0; v <= kernel; v++) {\n for ( u = 0; u < width; u++) {\n targetData[((v) * width) + u] = 0;\n targetData[(((height - 1) - v) * width) + u] = 0;\n }\n }\n\n // clear out left & right border\n for ( v = kernel; v < height - kernel; v++) {\n for ( u = 0; u <= kernel; u++) {\n targetData[((v) * width) + u] = 0;\n targetData[((v) * width) + (width - 1 - u)] = 0;\n }\n }\n\n for ( v = kernel + 1; v < height - kernel - 1; v++) {\n for ( u = kernel + 1; u < width - kernel; u++) {\n A = integralImageData[(v - kernel - 1) * width + (u - kernel - 1)];\n B = integralImageData[(v - kernel - 1) * width + (u + kernel)];\n C = integralImageData[(v + kernel) * width + (u - kernel - 1)];\n D = integralImageData[(v + kernel) * width + (u + kernel)];\n sum = D - C - B + A;\n avg = sum / (size);\n targetData[v * width + u] = imageData[v * width + u] > (avg + 5) ? 0 : 1;\n }\n }\n};\n\nCVUtils.cluster = function(points, threshold, property) {\n var i, k, cluster, point, clusters = [];\n\n if (!property) {\n property = \"rad\";\n }\n\n function addToCluster(point) {\n var found = false;\n for ( k = 0; k < clusters.length; k++) {\n cluster = clusters[k];\n if (cluster.fits(point)) {\n cluster.add(point);\n found = true;\n }\n }\n return found;\n }\n\n // iterate over each cloud\n for ( i = 0; i < points.length; i++) {\n point = Cluster2.createPoint(points[i], i, property);\n if (!addToCluster(point)) {\n clusters.push(Cluster2.create(point, threshold));\n }\n }\n\n return clusters;\n\n};\n\nCVUtils.Tracer = {\n trace : function(points, vec) {\n var iteration, maxIterations = 10, top = [], result = [], centerPos = 0, currentPos = 0;\n\n function trace(idx, forward) {\n var from, to, toIdx, predictedPos, thresholdX = 1, thresholdY = Math.abs(vec[1] / 10), found = false;\n\n function match(pos, predicted) {\n if (pos.x > (predicted.x - thresholdX) && pos.x < (predicted.x + thresholdX) && pos.y > (predicted.y - thresholdY) && pos.y < (predicted.y + thresholdY)) {\n return true;\n } else {\n return false;\n }\n }\n\n // check if the next index is within the vec specifications\n // if not, check as long as the threshold is met\n\n from = points[idx];\n if (forward) {\n predictedPos = {\n x : from.x + vec[0],\n y : from.y + vec[1]\n };\n } else {\n predictedPos = {\n x : from.x - vec[0],\n y : from.y - vec[1]\n };\n }\n\n toIdx = forward ? idx + 1 : idx - 1;\n to = points[toIdx];\n while (to && ( found = match(to, predictedPos)) !== true && (Math.abs(to.y - from.y) < vec[1])) {\n toIdx = forward ? toIdx + 1 : toIdx - 1;\n to = points[toIdx];\n }\n\n return found ? toIdx : null;\n }\n\n for ( iteration = 0; iteration < maxIterations; iteration++) {\n // randomly select point to start with\n centerPos = Math.floor(Math.random() * points.length);\n\n // trace forward\n top = [];\n currentPos = centerPos;\n top.push(points[currentPos]);\n while (( currentPos = trace(currentPos, true)) !== null) {\n top.push(points[currentPos]);\n }\n if (centerPos > 0) {\n currentPos = centerPos;\n while (( currentPos = trace(currentPos, false)) !== null) {\n top.push(points[currentPos]);\n }\n }\n\n if (top.length > result.length) {\n result = top;\n }\n }\n\n return result;\n\n }\n};\n\nCVUtils.DILATE = 1;\nCVUtils.ERODE = 2;\n\nCVUtils.dilate = function(inImageWrapper, outImageWrapper) {\n var v, u, inImageData = inImageWrapper.data, outImageData = outImageWrapper.data, height = inImageWrapper.size.y, width = inImageWrapper.size.x, sum, yStart1, yStart2, xStart1, xStart2;\n\n for ( v = 1; v < height - 1; v++) {\n for ( u = 1; u < width - 1; u++) {\n yStart1 = v - 1;\n yStart2 = v + 1;\n xStart1 = u - 1;\n xStart2 = u + 1;\n sum = inImageData[yStart1 * width + xStart1]/* + inImageData[yStart1*width+u] */ + inImageData[yStart1 * width + xStart2] +\n /* inImageData[v*width+xStart1] + */\n inImageData[v * width + u] + /* inImageData[v*width+xStart2] +*/\n inImageData[yStart2 * width + xStart1]/* + inImageData[yStart2*width+u]*/ + inImageData[yStart2 * width + xStart2];\n outImageData[v * width + u] = sum > 0 ? 1 : 0;\n }\n }\n};\n\nCVUtils.erode = function(inImageWrapper, outImageWrapper) {\n var v, u, inImageData = inImageWrapper.data, outImageData = outImageWrapper.data, height = inImageWrapper.size.y, width = inImageWrapper.size.x, sum, yStart1, yStart2, xStart1, xStart2;\n\n for ( v = 1; v < height - 1; v++) {\n for ( u = 1; u < width - 1; u++) {\n yStart1 = v - 1;\n yStart2 = v + 1;\n xStart1 = u - 1;\n xStart2 = u + 1;\n sum = inImageData[yStart1 * width + xStart1]/* + inImageData[yStart1*width+u] */ + inImageData[yStart1 * width + xStart2] +\n /* inImageData[v*width+xStart1] + */\n inImageData[v * width + u] + /* inImageData[v*width+xStart2] +*/\n inImageData[yStart2 * width + xStart1]/* + inImageData[yStart2*width+u]*/ + inImageData[yStart2 * width + xStart2];\n outImageData[v * width + u] = sum === 5 ? 1 : 0;\n }\n }\n};\n\nCVUtils.subtract = function(aImageWrapper, bImageWrapper, resultImageWrapper) {\n if (!resultImageWrapper) {\n resultImageWrapper = aImageWrapper;\n }\n var length = aImageWrapper.data.length, aImageData = aImageWrapper.data, bImageData = bImageWrapper.data, cImageData = resultImageWrapper.data;\n\n while (length--) {\n cImageData[length] = aImageData[length] - bImageData[length];\n }\n};\n\nCVUtils.bitwiseOr = function(aImageWrapper, bImageWrapper, resultImageWrapper) {\n if (!resultImageWrapper) {\n resultImageWrapper = aImageWrapper;\n }\n var length = aImageWrapper.data.length, aImageData = aImageWrapper.data, bImageData = bImageWrapper.data, cImageData = resultImageWrapper.data;\n\n while (length--) {\n cImageData[length] = aImageData[length] || bImageData[length];\n }\n};\n\nCVUtils.countNonZero = function(imageWrapper) {\n var length = imageWrapper.data.length, data = imageWrapper.data, sum = 0;\n\n while (length--) {\n sum += data[length];\n }\n return sum;\n};\n\nCVUtils.topGeneric = function(list, top, scoreFunc) {\n var i, minIdx = 0, min = 0, queue = [], score, hit, pos;\n\n for ( i = 0; i < top; i++) {\n queue[i] = {\n score : 0,\n item : null\n };\n }\n\n for ( i = 0; i < list.length; i++) {\n score = scoreFunc.apply(this, [list[i]]);\n if (score > min) {\n hit = queue[minIdx];\n hit.score = score;\n hit.item = list[i];\n min = Number.MAX_VALUE;\n for ( pos = 0; pos < top; pos++) {\n if (queue[pos].score < min) {\n min = queue[pos].score;\n minIdx = pos;\n }\n }\n }\n }\n\n return queue;\n};\n\nCVUtils.grayArrayFromImage = function(htmlImage, offsetX, ctx, array) {\n ctx.drawImage(htmlImage, offsetX, 0, htmlImage.width, htmlImage.height);\n var ctxData = ctx.getImageData(offsetX, 0, htmlImage.width, htmlImage.height).data;\n CVUtils.computeGray(ctxData, array);\n};\n\nCVUtils.grayArrayFromContext = function(ctx, size, offset, array) {\n var ctxData = ctx.getImageData(offset.x, offset.y, size.x, size.y).data;\n CVUtils.computeGray(ctxData, array);\n};\n\nCVUtils.grayAndHalfSampleFromCanvasData = function(canvasData, size, outArray) {\n var topRowIdx = 0;\n var bottomRowIdx = size.x;\n var endIdx = Math.floor(canvasData.length / 4);\n var outWidth = size.x / 2;\n var outImgIdx = 0;\n var inWidth = size.x;\n var i;\n\n while (bottomRowIdx < endIdx) {\n for ( i = 0; i < outWidth; i++) {\n outArray[outImgIdx] = Math.floor(((0.299 * canvasData[topRowIdx * 4 + 0] + 0.587 * canvasData[topRowIdx * 4 + 1] + 0.114 * canvasData[topRowIdx * 4 + 2]) + (0.299 * canvasData[(topRowIdx + 1) * 4 + 0] + 0.587 * canvasData[(topRowIdx + 1) * 4 + 1] + 0.114 * canvasData[(topRowIdx + 1) * 4 + 2]) + (0.299 * canvasData[(bottomRowIdx) * 4 + 0] + 0.587 * canvasData[(bottomRowIdx) * 4 + 1] + 0.114 * canvasData[(bottomRowIdx) * 4 + 2]) + (0.299 * canvasData[(bottomRowIdx + 1) * 4 + 0] + 0.587 * canvasData[(bottomRowIdx + 1) * 4 + 1] + 0.114 * canvasData[(bottomRowIdx + 1) * 4 + 2])) / 4);\n outImgIdx++;\n topRowIdx = topRowIdx + 2;\n bottomRowIdx = bottomRowIdx + 2;\n }\n topRowIdx = topRowIdx + inWidth;\n bottomRowIdx = bottomRowIdx + inWidth;\n }\n\n};\n\nCVUtils.computeGray = function(imageData, outArray, config) {\n var l = (imageData.length / 4) | 0,\n i,\n singleChannel = config && config.singleChannel === true;\n\n if (singleChannel) {\n for (i = 0; i < l; i++) {\n outArray[i] = imageData[i * 4 + 0];\n }\n } else {\n for (i = 0; i < l; i++) {\n outArray[i] = Math.floor(0.299 * imageData[i * 4 + 0] + 0.587 * imageData[i * 4 + 1] + 0.114 * imageData[i * 4 + 2]);\n }\n }\n};\n\nCVUtils.loadImageArray = function(src, callback, canvas) {\n if (!canvas)\n canvas = document.createElement('canvas');\n var img = new Image();\n img.callback = callback;\n img.onload = function() {\n canvas.width = this.width;\n canvas.height = this.height;\n var ctx = canvas.getContext('2d');\n ctx.drawImage(this, 0, 0);\n var array = new Uint8Array(this.width * this.height);\n ctx.drawImage(this, 0, 0);\n var data = ctx.getImageData(0, 0, this.width, this.height).data;\n CVUtils.computeGray(data, array);\n this.callback(array, {\n x : this.width,\n y : this.height\n }, this);\n };\n img.src = src;\n};\n\n/**\n * @param inImg {ImageWrapper} input image to be sampled\n * @param outImg {ImageWrapper} to be stored in\n */\nCVUtils.halfSample = function(inImgWrapper, outImgWrapper) {\n var inImg = inImgWrapper.data;\n var inWidth = inImgWrapper.size.x;\n var outImg = outImgWrapper.data;\n var topRowIdx = 0;\n var bottomRowIdx = inWidth;\n var endIdx = inImg.length;\n var outWidth = inWidth / 2;\n var outImgIdx = 0;\n while (bottomRowIdx < endIdx) {\n for (var i = 0; i < outWidth; i++) {\n outImg[outImgIdx] = Math.floor((inImg[topRowIdx] + inImg[topRowIdx + 1] + inImg[bottomRowIdx] + inImg[bottomRowIdx + 1]) / 4);\n outImgIdx++;\n topRowIdx = topRowIdx + 2;\n bottomRowIdx = bottomRowIdx + 2;\n }\n topRowIdx = topRowIdx + inWidth;\n bottomRowIdx = bottomRowIdx + inWidth;\n }\n};\n\nCVUtils.hsv2rgb = function(hsv, rgb) {\n var h = hsv[0], s = hsv[1], v = hsv[2], c = v * s, x = c * (1 - Math.abs((h / 60) % 2 - 1)), m = v - c, r = 0, g = 0, b = 0;\n rgb = rgb || [0, 0, 0];\n\n if (h < 60) {\n r = c;\n g = x;\n } else if (h < 120) {\n r = x;\n g = c;\n } else if (h < 180) {\n g = c;\n b = x;\n } else if (h < 240) {\n g = x;\n b = c;\n } else if (h < 300) {\n r = x;\n b = c;\n } else if (h < 360) {\n r = c;\n b = x;\n }\n rgb[0] = ((r + m) * 255) | 0;\n rgb[1] = ((g + m) * 255) | 0;\n rgb[2] = ((b + m) * 255) | 0;\n return rgb;\n};\n\nCVUtils._computeDivisors = function(n) {\n var largeDivisors = [],\n divisors = [],\n i;\n\n for (i = 1; i < Math.sqrt(n) + 1; i++) {\n if (n % i === 0) {\n divisors.push(i);\n if (i !== n/i) {\n largeDivisors.unshift(Math.floor(n/i));\n }\n }\n }\n return divisors.concat(largeDivisors);\n};\n\nCVUtils._computeIntersection = function(arr1, arr2) {\n var i = 0,\n j = 0,\n result = [];\n\n while (i < arr1.length && j < arr2.length) {\n if (arr1[i] === arr2[j]) {\n result.push(arr1[i]);\n i++;\n j++;\n } else if (arr1[i] > arr2[j]) {\n j++;\n } else {\n i++;\n }\n }\n return result;\n};\n\nCVUtils.calculatePatchSize = function(patchSize, imgSize) {\n var divisorsX = this._computeDivisors(imgSize.x),\n divisorsY = this._computeDivisors(imgSize.y),\n wideSide = Math.max(imgSize.x, imgSize.y),\n common = this._computeIntersection(divisorsX, divisorsY),\n nrOfPatchesList = [8, 10, 15, 20, 32, 60, 80],\n nrOfPatchesMap = {\n \"x-small\": 5,\n \"small\": 4,\n \"medium\": 3,\n \"large\": 2,\n \"x-large\": 1\n },\n nrOfPatchesIdx = nrOfPatchesMap[patchSize] || nrOfPatchesMap.medium,\n nrOfPatches = nrOfPatchesList[nrOfPatchesIdx],\n desiredPatchSize = Math.floor(wideSide/nrOfPatches),\n optimalPatchSize;\n\n function findPatchSizeForDivisors(divisors) {\n var i = 0,\n found = divisors[Math.floor(divisors.length/2)];\n\n while(i < (divisors.length - 1) && divisors[i] < desiredPatchSize) {\n i++;\n }\n if (i > 0) {\n if (Math.abs(divisors[i] - desiredPatchSize) > Math.abs(divisors[i-1] - desiredPatchSize)) {\n found = divisors[i-1];\n } else {\n found = divisors[i];\n }\n }\n if (desiredPatchSize / found < nrOfPatchesList[nrOfPatchesIdx+1] / nrOfPatchesList[nrOfPatchesIdx] &&\n desiredPatchSize / found > nrOfPatchesList[nrOfPatchesIdx-1]/nrOfPatchesList[nrOfPatchesIdx] ) {\n return {x: found, y: found};\n }\n return null;\n }\n\n optimalPatchSize = findPatchSizeForDivisors(common);\n if (!optimalPatchSize) {\n optimalPatchSize = findPatchSizeForDivisors(this._computeDivisors(wideSide));\n if (!optimalPatchSize) {\n optimalPatchSize = findPatchSizeForDivisors((this._computeDivisors(desiredPatchSize * nrOfPatches)));\n }\n }\n return optimalPatchSize;\n};\n\nCVUtils._parseCSSDimensionValues = function(value) {\n var dimension = {\n value: parseFloat(value),\n unit: value.indexOf(\"%\") === value.length-1 ? \"%\" : \"%\"\n };\n\n return dimension;\n};\n\nCVUtils._dimensionsConverters = {\n top: function(dimension, context) {\n if (dimension.unit === \"%\") {\n return Math.floor(context.height * (dimension.value / 100));\n }\n },\n right: function(dimension, context) {\n if (dimension.unit === \"%\") {\n return Math.floor(context.width - (context.width * (dimension.value / 100)));\n }\n },\n bottom: function(dimension, context) {\n if (dimension.unit === \"%\") {\n return Math.floor(context.height - (context.height * (dimension.value / 100)));\n }\n },\n left: function(dimension, context) {\n if (dimension.unit === \"%\") {\n return Math.floor(context.width * (dimension.value / 100));\n }\n }\n};\n\nCVUtils.computeImageArea = function(inputWidth, inputHeight, area) {\n var context = {width: inputWidth, height: inputHeight};\n\n var parsedArea = Object.keys(area).reduce(function(result, key) {\n var value = area[key],\n parsed = CVUtils._parseCSSDimensionValues(value),\n calculated = CVUtils._dimensionsConverters[key](parsed, context);\n\n result[key] = calculated;\n return result;\n }, {});\n\n return {\n sx: parsedArea.left,\n sy: parsedArea.top,\n sw: parsedArea.right - parsedArea.left,\n sh: parsedArea.bottom - parsedArea.top\n };\n};\n\nexport default CVUtils;\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/cv_utils.js\n **/","import {vec2} from 'gl-matrix';\n /**\n * Creates a cluster for grouping similar orientations of datapoints\n */\nexport default {\n create: function(point, threshold) {\n var points = [],\n center = {\n rad: 0,\n vec: vec2.clone([0, 0])\n },\n pointMap = {};\n\n function init() {\n add(point);\n updateCenter();\n }\n\n function add(point) {\n pointMap[point.id] = point;\n points.push(point);\n }\n\n function updateCenter() {\n var i, sum = 0;\n for ( i = 0; i < points.length; i++) {\n sum += points[i].rad;\n }\n center.rad = sum / points.length;\n center.vec = vec2.clone([Math.cos(center.rad), Math.sin(center.rad)]);\n }\n\n init();\n\n return {\n add: function(point) {\n if (!pointMap[point.id]) {\n add(point);\n updateCenter();\n }\n },\n fits: function(point) {\n // check cosine similarity to center-angle\n var similarity = Math.abs(vec2.dot(point.point.vec, center.vec));\n if (similarity > threshold) {\n return true;\n }\n return false;\n },\n getPoints: function() {\n return points;\n },\n getCenter: function() {\n return center;\n }\n };\n },\n createPoint: function(point, id, property) {\n return {\n rad: point[property],\n point: point,\n id: id\n };\n }\n};\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/cluster.js\n **/","/**\n * @fileoverview gl-matrix - High performance matrix and vector operations\n * @author Brandon Jones\n * @author Colin MacKenzie IV\n * @version 2.3.0\n */\n\n/* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV.\n\nPermission is hereby granted, free of charge, to any person obtaining a copy\nof this software and associated documentation files (the \"Software\"), to deal\nin the Software without restriction, including without limitation the rights\nto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\ncopies of the Software, and to permit persons to whom the Software is\nfurnished to do so, subject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in\nall copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\nFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\nAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\nLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\nOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\nTHE SOFTWARE. */\n// END HEADER\n\nexports.glMatrix = require(\"./gl-matrix/common.js\");\nexports.mat2 = require(\"./gl-matrix/mat2.js\");\nexports.mat2d = require(\"./gl-matrix/mat2d.js\");\nexports.mat3 = require(\"./gl-matrix/mat3.js\");\nexports.mat4 = require(\"./gl-matrix/mat4.js\");\nexports.quat = require(\"./gl-matrix/quat.js\");\nexports.vec2 = require(\"./gl-matrix/vec2.js\");\nexports.vec3 = require(\"./gl-matrix/vec3.js\");\nexports.vec4 = require(\"./gl-matrix/vec4.js\");\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/gl-matrix/src/gl-matrix.js\n ** module id = 9\n ** module chunks = 0\n **/","/* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV.\n\nPermission is hereby granted, free of charge, to any person obtaining a copy\nof this software and associated documentation files (the \"Software\"), to deal\nin the Software without restriction, including without limitation the rights\nto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\ncopies of the Software, and to permit persons to whom the Software is\nfurnished to do so, subject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in\nall copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\nFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\nAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\nLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\nOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\nTHE SOFTWARE. */\n\n/**\n * @class Common utilities\n * @name glMatrix\n */\nvar glMatrix = {};\n\n// Constants\nglMatrix.EPSILON = 0.000001;\nglMatrix.ARRAY_TYPE = (typeof Float32Array !== 'undefined') ? Float32Array : Array;\nglMatrix.RANDOM = Math.random;\n\n/**\n * Sets the type of array used when creating new vectors and matrices\n *\n * @param {Type} type Array type, such as Float32Array or Array\n */\nglMatrix.setMatrixArrayType = function(type) {\n GLMAT_ARRAY_TYPE = type;\n}\n\nvar degree = Math.PI / 180;\n\n/**\n* Convert Degree To Radian\n*\n* @param {Number} Angle in Degrees\n*/\nglMatrix.toRadian = function(a){\n return a * degree;\n}\n\nmodule.exports = glMatrix;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/gl-matrix/src/gl-matrix/common.js\n ** module id = 10\n ** module chunks = 0\n **/","/* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV.\n\nPermission is hereby granted, free of charge, to any person obtaining a copy\nof this software and associated documentation files (the \"Software\"), to deal\nin the Software without restriction, including without limitation the rights\nto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\ncopies of the Software, and to permit persons to whom the Software is\nfurnished to do so, subject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in\nall copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\nFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\nAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\nLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\nOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\nTHE SOFTWARE. */\n\nvar glMatrix = require(\"./common.js\");\n\n/**\n * @class 2x2 Matrix\n * @name mat2\n */\nvar mat2 = {};\n\n/**\n * Creates a new identity mat2\n *\n * @returns {mat2} a new 2x2 matrix\n */\nmat2.create = function() {\n var out = new glMatrix.ARRAY_TYPE(4);\n out[0] = 1;\n out[1] = 0;\n out[2] = 0;\n out[3] = 1;\n return out;\n};\n\n/**\n * Creates a new mat2 initialized with values from an existing matrix\n *\n * @param {mat2} a matrix to clone\n * @returns {mat2} a new 2x2 matrix\n */\nmat2.clone = function(a) {\n var out = new glMatrix.ARRAY_TYPE(4);\n out[0] = a[0];\n out[1] = a[1];\n out[2] = a[2];\n out[3] = a[3];\n return out;\n};\n\n/**\n * Copy the values from one mat2 to another\n *\n * @param {mat2} out the receiving matrix\n * @param {mat2} a the source matrix\n * @returns {mat2} out\n */\nmat2.copy = function(out, a) {\n out[0] = a[0];\n out[1] = a[1];\n out[2] = a[2];\n out[3] = a[3];\n return out;\n};\n\n/**\n * Set a mat2 to the identity matrix\n *\n * @param {mat2} out the receiving matrix\n * @returns {mat2} out\n */\nmat2.identity = function(out) {\n out[0] = 1;\n out[1] = 0;\n out[2] = 0;\n out[3] = 1;\n return out;\n};\n\n/**\n * Transpose the values of a mat2\n *\n * @param {mat2} out the receiving matrix\n * @param {mat2} a the source matrix\n * @returns {mat2} out\n */\nmat2.transpose = function(out, a) {\n // If we are transposing ourselves we can skip a few steps but have to cache some values\n if (out === a) {\n var a1 = a[1];\n out[1] = a[2];\n out[2] = a1;\n } else {\n out[0] = a[0];\n out[1] = a[2];\n out[2] = a[1];\n out[3] = a[3];\n }\n \n return out;\n};\n\n/**\n * Inverts a mat2\n *\n * @param {mat2} out the receiving matrix\n * @param {mat2} a the source matrix\n * @returns {mat2} out\n */\nmat2.invert = function(out, a) {\n var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3],\n\n // Calculate the determinant\n det = a0 * a3 - a2 * a1;\n\n if (!det) {\n return null;\n }\n det = 1.0 / det;\n \n out[0] = a3 * det;\n out[1] = -a1 * det;\n out[2] = -a2 * det;\n out[3] = a0 * det;\n\n return out;\n};\n\n/**\n * Calculates the adjugate of a mat2\n *\n * @param {mat2} out the receiving matrix\n * @param {mat2} a the source matrix\n * @returns {mat2} out\n */\nmat2.adjoint = function(out, a) {\n // Caching this value is nessecary if out == a\n var a0 = a[0];\n out[0] = a[3];\n out[1] = -a[1];\n out[2] = -a[2];\n out[3] = a0;\n\n return out;\n};\n\n/**\n * Calculates the determinant of a mat2\n *\n * @param {mat2} a the source matrix\n * @returns {Number} determinant of a\n */\nmat2.determinant = function (a) {\n return a[0] * a[3] - a[2] * a[1];\n};\n\n/**\n * Multiplies two mat2's\n *\n * @param {mat2} out the receiving matrix\n * @param {mat2} a the first operand\n * @param {mat2} b the second operand\n * @returns {mat2} out\n */\nmat2.multiply = function (out, a, b) {\n var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3];\n var b0 = b[0], b1 = b[1], b2 = b[2], b3 = b[3];\n out[0] = a0 * b0 + a2 * b1;\n out[1] = a1 * b0 + a3 * b1;\n out[2] = a0 * b2 + a2 * b3;\n out[3] = a1 * b2 + a3 * b3;\n return out;\n};\n\n/**\n * Alias for {@link mat2.multiply}\n * @function\n */\nmat2.mul = mat2.multiply;\n\n/**\n * Rotates a mat2 by the given angle\n *\n * @param {mat2} out the receiving matrix\n * @param {mat2} a the matrix to rotate\n * @param {Number} rad the angle to rotate the matrix by\n * @returns {mat2} out\n */\nmat2.rotate = function (out, a, rad) {\n var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3],\n s = Math.sin(rad),\n c = Math.cos(rad);\n out[0] = a0 * c + a2 * s;\n out[1] = a1 * c + a3 * s;\n out[2] = a0 * -s + a2 * c;\n out[3] = a1 * -s + a3 * c;\n return out;\n};\n\n/**\n * Scales the mat2 by the dimensions in the given vec2\n *\n * @param {mat2} out the receiving matrix\n * @param {mat2} a the matrix to rotate\n * @param {vec2} v the vec2 to scale the matrix by\n * @returns {mat2} out\n **/\nmat2.scale = function(out, a, v) {\n var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3],\n v0 = v[0], v1 = v[1];\n out[0] = a0 * v0;\n out[1] = a1 * v0;\n out[2] = a2 * v1;\n out[3] = a3 * v1;\n return out;\n};\n\n/**\n * Creates a matrix from a given angle\n * This is equivalent to (but much faster than):\n *\n * mat2.identity(dest);\n * mat2.rotate(dest, dest, rad);\n *\n * @param {mat2} out mat2 receiving operation result\n * @param {Number} rad the angle to rotate the matrix by\n * @returns {mat2} out\n */\nmat2.fromRotation = function(out, rad) {\n var s = Math.sin(rad),\n c = Math.cos(rad);\n out[0] = c;\n out[1] = s;\n out[2] = -s;\n out[3] = c;\n return out;\n}\n\n/**\n * Creates a matrix from a vector scaling\n * This is equivalent to (but much faster than):\n *\n * mat2.identity(dest);\n * mat2.scale(dest, dest, vec);\n *\n * @param {mat2} out mat2 receiving operation result\n * @param {vec2} v Scaling vector\n * @returns {mat2} out\n */\nmat2.fromScaling = function(out, v) {\n out[0] = v[0];\n out[1] = 0;\n out[2] = 0;\n out[3] = v[1];\n return out;\n}\n\n/**\n * Returns a string representation of a mat2\n *\n * @param {mat2} mat matrix to represent as a string\n * @returns {String} string representation of the matrix\n */\nmat2.str = function (a) {\n return 'mat2(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' + a[3] + ')';\n};\n\n/**\n * Returns Frobenius norm of a mat2\n *\n * @param {mat2} a the matrix to calculate Frobenius norm of\n * @returns {Number} Frobenius norm\n */\nmat2.frob = function (a) {\n return(Math.sqrt(Math.pow(a[0], 2) + Math.pow(a[1], 2) + Math.pow(a[2], 2) + Math.pow(a[3], 2)))\n};\n\n/**\n * Returns L, D and U matrices (Lower triangular, Diagonal and Upper triangular) by factorizing the input matrix\n * @param {mat2} L the lower triangular matrix \n * @param {mat2} D the diagonal matrix \n * @param {mat2} U the upper triangular matrix \n * @param {mat2} a the input matrix to factorize\n */\n\nmat2.LDU = function (L, D, U, a) { \n L[2] = a[2]/a[0]; \n U[0] = a[0]; \n U[1] = a[1]; \n U[3] = a[3] - L[2] * U[1]; \n return [L, D, U]; \n}; \n\n\nmodule.exports = mat2;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/gl-matrix/src/gl-matrix/mat2.js\n ** module id = 11\n ** module chunks = 0\n **/","/* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV.\n\nPermission is hereby granted, free of charge, to any person obtaining a copy\nof this software and associated documentation files (the \"Software\"), to deal\nin the Software without restriction, including without limitation the rights\nto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\ncopies of the Software, and to permit persons to whom the Software is\nfurnished to do so, subject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in\nall copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\nFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\nAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\nLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\nOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\nTHE SOFTWARE. */\n\nvar glMatrix = require(\"./common.js\");\n\n/**\n * @class 2x3 Matrix\n * @name mat2d\n * \n * @description \n * A mat2d contains six elements defined as:\n * 
\n * [a, c, tx,\n *  b, d, ty]\n *
\n * This is a short form for the 3x3 matrix:\n * 
\n * [a, c, tx,\n *  b, d, ty,\n *  0, 0, 1]\n *
\n * The last row is ignored so the array is shorter and operations are faster.\n */\nvar mat2d = {};\n\n/**\n * Creates a new identity mat2d\n *\n * @returns {mat2d} a new 2x3 matrix\n */\nmat2d.create = function() {\n var out = new glMatrix.ARRAY_TYPE(6);\n out[0] = 1;\n out[1] = 0;\n out[2] = 0;\n out[3] = 1;\n out[4] = 0;\n out[5] = 0;\n return out;\n};\n\n/**\n * Creates a new mat2d initialized with values from an existing matrix\n *\n * @param {mat2d} a matrix to clone\n * @returns {mat2d} a new 2x3 matrix\n */\nmat2d.clone = function(a) {\n var out = new glMatrix.ARRAY_TYPE(6);\n out[0] = a[0];\n out[1] = a[1];\n out[2] = a[2];\n out[3] = a[3];\n out[4] = a[4];\n out[5] = a[5];\n return out;\n};\n\n/**\n * Copy the values from one mat2d to another\n *\n * @param {mat2d} out the receiving matrix\n * @param {mat2d} a the source matrix\n * @returns {mat2d} out\n */\nmat2d.copy = function(out, a) {\n out[0] = a[0];\n out[1] = a[1];\n out[2] = a[2];\n out[3] = a[3];\n out[4] = a[4];\n out[5] = a[5];\n return out;\n};\n\n/**\n * Set a mat2d to the identity matrix\n *\n * @param {mat2d} out the receiving matrix\n * @returns {mat2d} out\n */\nmat2d.identity = function(out) {\n out[0] = 1;\n out[1] = 0;\n out[2] = 0;\n out[3] = 1;\n out[4] = 0;\n out[5] = 0;\n return out;\n};\n\n/**\n * Inverts a mat2d\n *\n * @param {mat2d} out the receiving matrix\n * @param {mat2d} a the source matrix\n * @returns {mat2d} out\n */\nmat2d.invert = function(out, a) {\n var aa = a[0], ab = a[1], ac = a[2], ad = a[3],\n atx = a[4], aty = a[5];\n\n var det = aa * ad - ab * ac;\n if(!det){\n return null;\n }\n det = 1.0 / det;\n\n out[0] = ad * det;\n out[1] = -ab * det;\n out[2] = -ac * det;\n out[3] = aa * det;\n out[4] = (ac * aty - ad * atx) * det;\n out[5] = (ab * atx - aa * aty) * det;\n return out;\n};\n\n/**\n * Calculates the determinant of a mat2d\n *\n * @param {mat2d} a the source matrix\n * @returns {Number} determinant of a\n */\nmat2d.determinant = function (a) {\n return a[0] * a[3] - a[1] * a[2];\n};\n\n/**\n * Multiplies two mat2d's\n *\n * @param {mat2d} out the receiving matrix\n * @param {mat2d} a the first operand\n * @param {mat2d} b the second operand\n * @returns {mat2d} out\n */\nmat2d.multiply = function (out, a, b) {\n var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3], a4 = a[4], a5 = a[5],\n b0 = b[0], b1 = b[1], b2 = b[2], b3 = b[3], b4 = b[4], b5 = b[5];\n out[0] = a0 * b0 + a2 * b1;\n out[1] = a1 * b0 + a3 * b1;\n out[2] = a0 * b2 + a2 * b3;\n out[3] = a1 * b2 + a3 * b3;\n out[4] = a0 * b4 + a2 * b5 + a4;\n out[5] = a1 * b4 + a3 * b5 + a5;\n return out;\n};\n\n/**\n * Alias for {@link mat2d.multiply}\n * @function\n */\nmat2d.mul = mat2d.multiply;\n\n/**\n * Rotates a mat2d by the given angle\n *\n * @param {mat2d} out the receiving matrix\n * @param {mat2d} a the matrix to rotate\n * @param {Number} rad the angle to rotate the matrix by\n * @returns {mat2d} out\n */\nmat2d.rotate = function (out, a, rad) {\n var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3], a4 = a[4], a5 = a[5],\n s = Math.sin(rad),\n c = Math.cos(rad);\n out[0] = a0 * c + a2 * s;\n out[1] = a1 * c + a3 * s;\n out[2] = a0 * -s + a2 * c;\n out[3] = a1 * -s + a3 * c;\n out[4] = a4;\n out[5] = a5;\n return out;\n};\n\n/**\n * Scales the mat2d by the dimensions in the given vec2\n *\n * @param {mat2d} out the receiving matrix\n * @param {mat2d} a the matrix to translate\n * @param {vec2} v the vec2 to scale the matrix by\n * @returns {mat2d} out\n **/\nmat2d.scale = function(out, a, v) {\n var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3], a4 = a[4], a5 = a[5],\n v0 = v[0], v1 = v[1];\n out[0] = a0 * v0;\n out[1] = a1 * v0;\n out[2] = a2 * v1;\n out[3] = a3 * v1;\n out[4] = a4;\n out[5] = a5;\n return out;\n};\n\n/**\n * Translates the mat2d by the dimensions in the given vec2\n *\n * @param {mat2d} out the receiving matrix\n * @param {mat2d} a the matrix to translate\n * @param {vec2} v the vec2 to translate the matrix by\n * @returns {mat2d} out\n **/\nmat2d.translate = function(out, a, v) {\n var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3], a4 = a[4], a5 = a[5],\n v0 = v[0], v1 = v[1];\n out[0] = a0;\n out[1] = a1;\n out[2] = a2;\n out[3] = a3;\n out[4] = a0 * v0 + a2 * v1 + a4;\n out[5] = a1 * v0 + a3 * v1 + a5;\n return out;\n};\n\n/**\n * Creates a matrix from a given angle\n * This is equivalent to (but much faster than):\n *\n * mat2d.identity(dest);\n * mat2d.rotate(dest, dest, rad);\n *\n * @param {mat2d} out mat2d receiving operation result\n * @param {Number} rad the angle to rotate the matrix by\n * @returns {mat2d} out\n */\nmat2d.fromRotation = function(out, rad) {\n var s = Math.sin(rad), c = Math.cos(rad);\n out[0] = c;\n out[1] = s;\n out[2] = -s;\n out[3] = c;\n out[4] = 0;\n out[5] = 0;\n return out;\n}\n\n/**\n * Creates a matrix from a vector scaling\n * This is equivalent to (but much faster than):\n *\n * mat2d.identity(dest);\n * mat2d.scale(dest, dest, vec);\n *\n * @param {mat2d} out mat2d receiving operation result\n * @param {vec2} v Scaling vector\n * @returns {mat2d} out\n */\nmat2d.fromScaling = function(out, v) {\n out[0] = v[0];\n out[1] = 0;\n out[2] = 0;\n out[3] = v[1];\n out[4] = 0;\n out[5] = 0;\n return out;\n}\n\n/**\n * Creates a matrix from a vector translation\n * This is equivalent to (but much faster than):\n *\n * mat2d.identity(dest);\n * mat2d.translate(dest, dest, vec);\n *\n * @param {mat2d} out mat2d receiving operation result\n * @param {vec2} v Translation vector\n * @returns {mat2d} out\n */\nmat2d.fromTranslation = function(out, v) {\n out[0] = 1;\n out[1] = 0;\n out[2] = 0;\n out[3] = 1;\n out[4] = v[0];\n out[5] = v[1];\n return out;\n}\n\n/**\n * Returns a string representation of a mat2d\n *\n * @param {mat2d} a matrix to represent as a string\n * @returns {String} string representation of the matrix\n */\nmat2d.str = function (a) {\n return 'mat2d(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' + \n a[3] + ', ' + a[4] + ', ' + a[5] + ')';\n};\n\n/**\n * Returns Frobenius norm of a mat2d\n *\n * @param {mat2d} a the matrix to calculate Frobenius norm of\n * @returns {Number} Frobenius norm\n */\nmat2d.frob = function (a) { \n return(Math.sqrt(Math.pow(a[0], 2) + Math.pow(a[1], 2) + Math.pow(a[2], 2) + Math.pow(a[3], 2) + Math.pow(a[4], 2) + Math.pow(a[5], 2) + 1))\n}; \n\nmodule.exports = mat2d;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/gl-matrix/src/gl-matrix/mat2d.js\n ** module id = 12\n ** module chunks = 0\n **/","/* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV.\n\nPermission is hereby granted, free of charge, to any person obtaining a copy\nof this software and associated documentation files (the \"Software\"), to deal\nin the Software without restriction, including without limitation the rights\nto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\ncopies of the Software, and to permit persons to whom the Software is\nfurnished to do so, subject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in\nall copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\nFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\nAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\nLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\nOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\nTHE SOFTWARE. */\n\nvar glMatrix = require(\"./common.js\");\n\n/**\n * @class 3x3 Matrix\n * @name mat3\n */\nvar mat3 = {};\n\n/**\n * Creates a new identity mat3\n *\n * @returns {mat3} a new 3x3 matrix\n */\nmat3.create = function() {\n var out = new glMatrix.ARRAY_TYPE(9);\n out[0] = 1;\n out[1] = 0;\n out[2] = 0;\n out[3] = 0;\n out[4] = 1;\n out[5] = 0;\n out[6] = 0;\n out[7] = 0;\n out[8] = 1;\n return out;\n};\n\n/**\n * Copies the upper-left 3x3 values into the given mat3.\n *\n * @param {mat3} out the receiving 3x3 matrix\n * @param {mat4} a the source 4x4 matrix\n * @returns {mat3} out\n */\nmat3.fromMat4 = function(out, a) {\n out[0] = a[0];\n out[1] = a[1];\n out[2] = a[2];\n out[3] = a[4];\n out[4] = a[5];\n out[5] = a[6];\n out[6] = a[8];\n out[7] = a[9];\n out[8] = a[10];\n return out;\n};\n\n/**\n * Creates a new mat3 initialized with values from an existing matrix\n *\n * @param {mat3} a matrix to clone\n * @returns {mat3} a new 3x3 matrix\n */\nmat3.clone = function(a) {\n var out = new glMatrix.ARRAY_TYPE(9);\n out[0] = a[0];\n out[1] = a[1];\n out[2] = a[2];\n out[3] = a[3];\n out[4] = a[4];\n out[5] = a[5];\n out[6] = a[6];\n out[7] = a[7];\n out[8] = a[8];\n return out;\n};\n\n/**\n * Copy the values from one mat3 to another\n *\n * @param {mat3} out the receiving matrix\n * @param {mat3} a the source matrix\n * @returns {mat3} out\n */\nmat3.copy = function(out, a) {\n out[0] = a[0];\n out[1] = a[1];\n out[2] = a[2];\n out[3] = a[3];\n out[4] = a[4];\n out[5] = a[5];\n out[6] = a[6];\n out[7] = a[7];\n out[8] = a[8];\n return out;\n};\n\n/**\n * Set a mat3 to the identity matrix\n *\n * @param {mat3} out the receiving matrix\n * @returns {mat3} out\n */\nmat3.identity = function(out) {\n out[0] = 1;\n out[1] = 0;\n out[2] = 0;\n out[3] = 0;\n out[4] = 1;\n out[5] = 0;\n out[6] = 0;\n out[7] = 0;\n out[8] = 1;\n return out;\n};\n\n/**\n * Transpose the values of a mat3\n *\n * @param {mat3} out the receiving matrix\n * @param {mat3} a the source matrix\n * @returns {mat3} out\n */\nmat3.transpose = function(out, a) {\n // If we are transposing ourselves we can skip a few steps but have to cache some values\n if (out === a) {\n var a01 = a[1], a02 = a[2], a12 = a[5];\n out[1] = a[3];\n out[2] = a[6];\n out[3] = a01;\n out[5] = a[7];\n out[6] = a02;\n out[7] = a12;\n } else {\n out[0] = a[0];\n out[1] = a[3];\n out[2] = a[6];\n out[3] = a[1];\n out[4] = a[4];\n out[5] = a[7];\n out[6] = a[2];\n out[7] = a[5];\n out[8] = a[8];\n }\n \n return out;\n};\n\n/**\n * Inverts a mat3\n *\n * @param {mat3} out the receiving matrix\n * @param {mat3} a the source matrix\n * @returns {mat3} out\n */\nmat3.invert = function(out, a) {\n var a00 = a[0], a01 = a[1], a02 = a[2],\n a10 = a[3], a11 = a[4], a12 = a[5],\n a20 = a[6], a21 = a[7], a22 = a[8],\n\n b01 = a22 * a11 - a12 * a21,\n b11 = -a22 * a10 + a12 * a20,\n b21 = a21 * a10 - a11 * a20,\n\n // Calculate the determinant\n det = a00 * b01 + a01 * b11 + a02 * b21;\n\n if (!det) { \n return null; \n }\n det = 1.0 / det;\n\n out[0] = b01 * det;\n out[1] = (-a22 * a01 + a02 * a21) * det;\n out[2] = (a12 * a01 - a02 * a11) * det;\n out[3] = b11 * det;\n out[4] = (a22 * a00 - a02 * a20) * det;\n out[5] = (-a12 * a00 + a02 * a10) * det;\n out[6] = b21 * det;\n out[7] = (-a21 * a00 + a01 * a20) * det;\n out[8] = (a11 * a00 - a01 * a10) * det;\n return out;\n};\n\n/**\n * Calculates the adjugate of a mat3\n *\n * @param {mat3} out the receiving matrix\n * @param {mat3} a the source matrix\n * @returns {mat3} out\n */\nmat3.adjoint = function(out, a) {\n var a00 = a[0], a01 = a[1], a02 = a[2],\n a10 = a[3], a11 = a[4], a12 = a[5],\n a20 = a[6], a21 = a[7], a22 = a[8];\n\n out[0] = (a11 * a22 - a12 * a21);\n out[1] = (a02 * a21 - a01 * a22);\n out[2] = (a01 * a12 - a02 * a11);\n out[3] = (a12 * a20 - a10 * a22);\n out[4] = (a00 * a22 - a02 * a20);\n out[5] = (a02 * a10 - a00 * a12);\n out[6] = (a10 * a21 - a11 * a20);\n out[7] = (a01 * a20 - a00 * a21);\n out[8] = (a00 * a11 - a01 * a10);\n return out;\n};\n\n/**\n * Calculates the determinant of a mat3\n *\n * @param {mat3} a the source matrix\n * @returns {Number} determinant of a\n */\nmat3.determinant = function (a) {\n var a00 = a[0], a01 = a[1], a02 = a[2],\n a10 = a[3], a11 = a[4], a12 = a[5],\n a20 = a[6], a21 = a[7], a22 = a[8];\n\n return a00 * (a22 * a11 - a12 * a21) + a01 * (-a22 * a10 + a12 * a20) + a02 * (a21 * a10 - a11 * a20);\n};\n\n/**\n * Multiplies two mat3's\n *\n * @param {mat3} out the receiving matrix\n * @param {mat3} a the first operand\n * @param {mat3} b the second operand\n * @returns {mat3} out\n */\nmat3.multiply = function (out, a, b) {\n var a00 = a[0], a01 = a[1], a02 = a[2],\n a10 = a[3], a11 = a[4], a12 = a[5],\n a20 = a[6], a21 = a[7], a22 = a[8],\n\n b00 = b[0], b01 = b[1], b02 = b[2],\n b10 = b[3], b11 = b[4], b12 = b[5],\n b20 = b[6], b21 = b[7], b22 = b[8];\n\n out[0] = b00 * a00 + b01 * a10 + b02 * a20;\n out[1] = b00 * a01 + b01 * a11 + b02 * a21;\n out[2] = b00 * a02 + b01 * a12 + b02 * a22;\n\n out[3] = b10 * a00 + b11 * a10 + b12 * a20;\n out[4] = b10 * a01 + b11 * a11 + b12 * a21;\n out[5] = b10 * a02 + b11 * a12 + b12 * a22;\n\n out[6] = b20 * a00 + b21 * a10 + b22 * a20;\n out[7] = b20 * a01 + b21 * a11 + b22 * a21;\n out[8] = b20 * a02 + b21 * a12 + b22 * a22;\n return out;\n};\n\n/**\n * Alias for {@link mat3.multiply}\n * @function\n */\nmat3.mul = mat3.multiply;\n\n/**\n * Translate a mat3 by the given vector\n *\n * @param {mat3} out the receiving matrix\n * @param {mat3} a the matrix to translate\n * @param {vec2} v vector to translate by\n * @returns {mat3} out\n */\nmat3.translate = function(out, a, v) {\n var a00 = a[0], a01 = a[1], a02 = a[2],\n a10 = a[3], a11 = a[4], a12 = a[5],\n a20 = a[6], a21 = a[7], a22 = a[8],\n x = v[0], y = v[1];\n\n out[0] = a00;\n out[1] = a01;\n out[2] = a02;\n\n out[3] = a10;\n out[4] = a11;\n out[5] = a12;\n\n out[6] = x * a00 + y * a10 + a20;\n out[7] = x * a01 + y * a11 + a21;\n out[8] = x * a02 + y * a12 + a22;\n return out;\n};\n\n/**\n * Rotates a mat3 by the given angle\n *\n * @param {mat3} out the receiving matrix\n * @param {mat3} a the matrix to rotate\n * @param {Number} rad the angle to rotate the matrix by\n * @returns {mat3} out\n */\nmat3.rotate = function (out, a, rad) {\n var a00 = a[0], a01 = a[1], a02 = a[2],\n a10 = a[3], a11 = a[4], a12 = a[5],\n a20 = a[6], a21 = a[7], a22 = a[8],\n\n s = Math.sin(rad),\n c = Math.cos(rad);\n\n out[0] = c * a00 + s * a10;\n out[1] = c * a01 + s * a11;\n out[2] = c * a02 + s * a12;\n\n out[3] = c * a10 - s * a00;\n out[4] = c * a11 - s * a01;\n out[5] = c * a12 - s * a02;\n\n out[6] = a20;\n out[7] = a21;\n out[8] = a22;\n return out;\n};\n\n/**\n * Scales the mat3 by the dimensions in the given vec2\n *\n * @param {mat3} out the receiving matrix\n * @param {mat3} a the matrix to rotate\n * @param {vec2} v the vec2 to scale the matrix by\n * @returns {mat3} out\n **/\nmat3.scale = function(out, a, v) {\n var x = v[0], y = v[1];\n\n out[0] = x * a[0];\n out[1] = x * a[1];\n out[2] = x * a[2];\n\n out[3] = y * a[3];\n out[4] = y * a[4];\n out[5] = y * a[5];\n\n out[6] = a[6];\n out[7] = a[7];\n out[8] = a[8];\n return out;\n};\n\n/**\n * Creates a matrix from a vector translation\n * This is equivalent to (but much faster than):\n *\n * mat3.identity(dest);\n * mat3.translate(dest, dest, vec);\n *\n * @param {mat3} out mat3 receiving operation result\n * @param {vec2} v Translation vector\n * @returns {mat3} out\n */\nmat3.fromTranslation = function(out, v) {\n out[0] = 1;\n out[1] = 0;\n out[2] = 0;\n out[3] = 0;\n out[4] = 1;\n out[5] = 0;\n out[6] = v[0];\n out[7] = v[1];\n out[8] = 1;\n return out;\n}\n\n/**\n * Creates a matrix from a given angle\n * This is equivalent to (but much faster than):\n *\n * mat3.identity(dest);\n * mat3.rotate(dest, dest, rad);\n *\n * @param {mat3} out mat3 receiving operation result\n * @param {Number} rad the angle to rotate the matrix by\n * @returns {mat3} out\n */\nmat3.fromRotation = function(out, rad) {\n var s = Math.sin(rad), c = Math.cos(rad);\n\n out[0] = c;\n out[1] = s;\n out[2] = 0;\n\n out[3] = -s;\n out[4] = c;\n out[5] = 0;\n\n out[6] = 0;\n out[7] = 0;\n out[8] = 1;\n return out;\n}\n\n/**\n * Creates a matrix from a vector scaling\n * This is equivalent to (but much faster than):\n *\n * mat3.identity(dest);\n * mat3.scale(dest, dest, vec);\n *\n * @param {mat3} out mat3 receiving operation result\n * @param {vec2} v Scaling vector\n * @returns {mat3} out\n */\nmat3.fromScaling = function(out, v) {\n out[0] = v[0];\n out[1] = 0;\n out[2] = 0;\n\n out[3] = 0;\n out[4] = v[1];\n out[5] = 0;\n\n out[6] = 0;\n out[7] = 0;\n out[8] = 1;\n return out;\n}\n\n/**\n * Copies the values from a mat2d into a mat3\n *\n * @param {mat3} out the receiving matrix\n * @param {mat2d} a the matrix to copy\n * @returns {mat3} out\n **/\nmat3.fromMat2d = function(out, a) {\n out[0] = a[0];\n out[1] = a[1];\n out[2] = 0;\n\n out[3] = a[2];\n out[4] = a[3];\n out[5] = 0;\n\n out[6] = a[4];\n out[7] = a[5];\n out[8] = 1;\n return out;\n};\n\n/**\n* Calculates a 3x3 matrix from the given quaternion\n*\n* @param {mat3} out mat3 receiving operation result\n* @param {quat} q Quaternion to create matrix from\n*\n* @returns {mat3} out\n*/\nmat3.fromQuat = function (out, q) {\n var x = q[0], y = q[1], z = q[2], w = q[3],\n x2 = x + x,\n y2 = y + y,\n z2 = z + z,\n\n xx = x * x2,\n yx = y * x2,\n yy = y * y2,\n zx = z * x2,\n zy = z * y2,\n zz = z * z2,\n wx = w * x2,\n wy = w * y2,\n wz = w * z2;\n\n out[0] = 1 - yy - zz;\n out[3] = yx - wz;\n out[6] = zx + wy;\n\n out[1] = yx + wz;\n out[4] = 1 - xx - zz;\n out[7] = zy - wx;\n\n out[2] = zx - wy;\n out[5] = zy + wx;\n out[8] = 1 - xx - yy;\n\n return out;\n};\n\n/**\n* Calculates a 3x3 normal matrix (transpose inverse) from the 4x4 matrix\n*\n* @param {mat3} out mat3 receiving operation result\n* @param {mat4} a Mat4 to derive the normal matrix from\n*\n* @returns {mat3} out\n*/\nmat3.normalFromMat4 = function (out, a) {\n var a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3],\n a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7],\n a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11],\n a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15],\n\n b00 = a00 * a11 - a01 * a10,\n b01 = a00 * a12 - a02 * a10,\n b02 = a00 * a13 - a03 * a10,\n b03 = a01 * a12 - a02 * a11,\n b04 = a01 * a13 - a03 * a11,\n b05 = a02 * a13 - a03 * a12,\n b06 = a20 * a31 - a21 * a30,\n b07 = a20 * a32 - a22 * a30,\n b08 = a20 * a33 - a23 * a30,\n b09 = a21 * a32 - a22 * a31,\n b10 = a21 * a33 - a23 * a31,\n b11 = a22 * a33 - a23 * a32,\n\n // Calculate the determinant\n det = b00 * b11 - b01 * b10 + b02 * b09 + b03 * b08 - b04 * b07 + b05 * b06;\n\n if (!det) { \n return null; \n }\n det = 1.0 / det;\n\n out[0] = (a11 * b11 - a12 * b10 + a13 * b09) * det;\n out[1] = (a12 * b08 - a10 * b11 - a13 * b07) * det;\n out[2] = (a10 * b10 - a11 * b08 + a13 * b06) * det;\n\n out[3] = (a02 * b10 - a01 * b11 - a03 * b09) * det;\n out[4] = (a00 * b11 - a02 * b08 + a03 * b07) * det;\n out[5] = (a01 * b08 - a00 * b10 - a03 * b06) * det;\n\n out[6] = (a31 * b05 - a32 * b04 + a33 * b03) * det;\n out[7] = (a32 * b02 - a30 * b05 - a33 * b01) * det;\n out[8] = (a30 * b04 - a31 * b02 + a33 * b00) * det;\n\n return out;\n};\n\n/**\n * Returns a string representation of a mat3\n *\n * @param {mat3} mat matrix to represent as a string\n * @returns {String} string representation of the matrix\n */\nmat3.str = function (a) {\n return 'mat3(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' + \n a[3] + ', ' + a[4] + ', ' + a[5] + ', ' + \n a[6] + ', ' + a[7] + ', ' + a[8] + ')';\n};\n\n/**\n * Returns Frobenius norm of a mat3\n *\n * @param {mat3} a the matrix to calculate Frobenius norm of\n * @returns {Number} Frobenius norm\n */\nmat3.frob = function (a) {\n return(Math.sqrt(Math.pow(a[0], 2) + Math.pow(a[1], 2) + Math.pow(a[2], 2) + Math.pow(a[3], 2) + Math.pow(a[4], 2) + Math.pow(a[5], 2) + Math.pow(a[6], 2) + Math.pow(a[7], 2) + Math.pow(a[8], 2)))\n};\n\n\nmodule.exports = mat3;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/gl-matrix/src/gl-matrix/mat3.js\n ** module id = 13\n ** module chunks = 0\n **/","/* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV.\n\nPermission is hereby granted, free of charge, to any person obtaining a copy\nof this software and associated documentation files (the \"Software\"), to deal\nin the Software without restriction, including without limitation the rights\nto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\ncopies of the Software, and to permit persons to whom the Software is\nfurnished to do so, subject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in\nall copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\nFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\nAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\nLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\nOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\nTHE SOFTWARE. */\n\nvar glMatrix = require(\"./common.js\");\n\n/**\n * @class 4x4 Matrix\n * @name mat4\n */\nvar mat4 = {};\n\n/**\n * Creates a new identity mat4\n *\n * @returns {mat4} a new 4x4 matrix\n */\nmat4.create = function() {\n var out = new glMatrix.ARRAY_TYPE(16);\n out[0] = 1;\n out[1] = 0;\n out[2] = 0;\n out[3] = 0;\n out[4] = 0;\n out[5] = 1;\n out[6] = 0;\n out[7] = 0;\n out[8] = 0;\n out[9] = 0;\n out[10] = 1;\n out[11] = 0;\n out[12] = 0;\n out[13] = 0;\n out[14] = 0;\n out[15] = 1;\n return out;\n};\n\n/**\n * Creates a new mat4 initialized with values from an existing matrix\n *\n * @param {mat4} a matrix to clone\n * @returns {mat4} a new 4x4 matrix\n */\nmat4.clone = function(a) {\n var out = new glMatrix.ARRAY_TYPE(16);\n out[0] = a[0];\n out[1] = a[1];\n out[2] = a[2];\n out[3] = a[3];\n out[4] = a[4];\n out[5] = a[5];\n out[6] = a[6];\n out[7] = a[7];\n out[8] = a[8];\n out[9] = a[9];\n out[10] = a[10];\n out[11] = a[11];\n out[12] = a[12];\n out[13] = a[13];\n out[14] = a[14];\n out[15] = a[15];\n return out;\n};\n\n/**\n * Copy the values from one mat4 to another\n *\n * @param {mat4} out the receiving matrix\n * @param {mat4} a the source matrix\n * @returns {mat4} out\n */\nmat4.copy = function(out, a) {\n out[0] = a[0];\n out[1] = a[1];\n out[2] = a[2];\n out[3] = a[3];\n out[4] = a[4];\n out[5] = a[5];\n out[6] = a[6];\n out[7] = a[7];\n out[8] = a[8];\n out[9] = a[9];\n out[10] = a[10];\n out[11] = a[11];\n out[12] = a[12];\n out[13] = a[13];\n out[14] = a[14];\n out[15] = a[15];\n return out;\n};\n\n/**\n * Set a mat4 to the identity matrix\n *\n * @param {mat4} out the receiving matrix\n * @returns {mat4} out\n */\nmat4.identity = function(out) {\n out[0] = 1;\n out[1] = 0;\n out[2] = 0;\n out[3] = 0;\n out[4] = 0;\n out[5] = 1;\n out[6] = 0;\n out[7] = 0;\n out[8] = 0;\n out[9] = 0;\n out[10] = 1;\n out[11] = 0;\n out[12] = 0;\n out[13] = 0;\n out[14] = 0;\n out[15] = 1;\n return out;\n};\n\n/**\n * Transpose the values of a mat4\n *\n * @param {mat4} out the receiving matrix\n * @param {mat4} a the source matrix\n * @returns {mat4} out\n */\nmat4.transpose = function(out, a) {\n // If we are transposing ourselves we can skip a few steps but have to cache some values\n if (out === a) {\n var a01 = a[1], a02 = a[2], a03 = a[3],\n a12 = a[6], a13 = a[7],\n a23 = a[11];\n\n out[1] = a[4];\n out[2] = a[8];\n out[3] = a[12];\n out[4] = a01;\n out[6] = a[9];\n out[7] = a[13];\n out[8] = a02;\n out[9] = a12;\n out[11] = a[14];\n out[12] = a03;\n out[13] = a13;\n out[14] = a23;\n } else {\n out[0] = a[0];\n out[1] = a[4];\n out[2] = a[8];\n out[3] = a[12];\n out[4] = a[1];\n out[5] = a[5];\n out[6] = a[9];\n out[7] = a[13];\n out[8] = a[2];\n out[9] = a[6];\n out[10] = a[10];\n out[11] = a[14];\n out[12] = a[3];\n out[13] = a[7];\n out[14] = a[11];\n out[15] = a[15];\n }\n \n return out;\n};\n\n/**\n * Inverts a mat4\n *\n * @param {mat4} out the receiving matrix\n * @param {mat4} a the source matrix\n * @returns {mat4} out\n */\nmat4.invert = function(out, a) {\n var a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3],\n a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7],\n a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11],\n a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15],\n\n b00 = a00 * a11 - a01 * a10,\n b01 = a00 * a12 - a02 * a10,\n b02 = a00 * a13 - a03 * a10,\n b03 = a01 * a12 - a02 * a11,\n b04 = a01 * a13 - a03 * a11,\n b05 = a02 * a13 - a03 * a12,\n b06 = a20 * a31 - a21 * a30,\n b07 = a20 * a32 - a22 * a30,\n b08 = a20 * a33 - a23 * a30,\n b09 = a21 * a32 - a22 * a31,\n b10 = a21 * a33 - a23 * a31,\n b11 = a22 * a33 - a23 * a32,\n\n // Calculate the determinant\n det = b00 * b11 - b01 * b10 + b02 * b09 + b03 * b08 - b04 * b07 + b05 * b06;\n\n if (!det) { \n return null; \n }\n det = 1.0 / det;\n\n out[0] = (a11 * b11 - a12 * b10 + a13 * b09) * det;\n out[1] = (a02 * b10 - a01 * b11 - a03 * b09) * det;\n out[2] = (a31 * b05 - a32 * b04 + a33 * b03) * det;\n out[3] = (a22 * b04 - a21 * b05 - a23 * b03) * det;\n out[4] = (a12 * b08 - a10 * b11 - a13 * b07) * det;\n out[5] = (a00 * b11 - a02 * b08 + a03 * b07) * det;\n out[6] = (a32 * b02 - a30 * b05 - a33 * b01) * det;\n out[7] = (a20 * b05 - a22 * b02 + a23 * b01) * det;\n out[8] = (a10 * b10 - a11 * b08 + a13 * b06) * det;\n out[9] = (a01 * b08 - a00 * b10 - a03 * b06) * det;\n out[10] = (a30 * b04 - a31 * b02 + a33 * b00) * det;\n out[11] = (a21 * b02 - a20 * b04 - a23 * b00) * det;\n out[12] = (a11 * b07 - a10 * b09 - a12 * b06) * det;\n out[13] = (a00 * b09 - a01 * b07 + a02 * b06) * det;\n out[14] = (a31 * b01 - a30 * b03 - a32 * b00) * det;\n out[15] = (a20 * b03 - a21 * b01 + a22 * b00) * det;\n\n return out;\n};\n\n/**\n * Calculates the adjugate of a mat4\n *\n * @param {mat4} out the receiving matrix\n * @param {mat4} a the source matrix\n * @returns {mat4} out\n */\nmat4.adjoint = function(out, a) {\n var a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3],\n a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7],\n a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11],\n a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15];\n\n out[0] = (a11 * (a22 * a33 - a23 * a32) - a21 * (a12 * a33 - a13 * a32) + a31 * (a12 * a23 - a13 * a22));\n out[1] = -(a01 * (a22 * a33 - a23 * a32) - a21 * (a02 * a33 - a03 * a32) + a31 * (a02 * a23 - a03 * a22));\n out[2] = (a01 * (a12 * a33 - a13 * a32) - a11 * (a02 * a33 - a03 * a32) + a31 * (a02 * a13 - a03 * a12));\n out[3] = -(a01 * (a12 * a23 - a13 * a22) - a11 * (a02 * a23 - a03 * a22) + a21 * (a02 * a13 - a03 * a12));\n out[4] = -(a10 * (a22 * a33 - a23 * a32) - a20 * (a12 * a33 - a13 * a32) + a30 * (a12 * a23 - a13 * a22));\n out[5] = (a00 * (a22 * a33 - a23 * a32) - a20 * (a02 * a33 - a03 * a32) + a30 * (a02 * a23 - a03 * a22));\n out[6] = -(a00 * (a12 * a33 - a13 * a32) - a10 * (a02 * a33 - a03 * a32) + a30 * (a02 * a13 - a03 * a12));\n out[7] = (a00 * (a12 * a23 - a13 * a22) - a10 * (a02 * a23 - a03 * a22) + a20 * (a02 * a13 - a03 * a12));\n out[8] = (a10 * (a21 * a33 - a23 * a31) - a20 * (a11 * a33 - a13 * a31) + a30 * (a11 * a23 - a13 * a21));\n out[9] = -(a00 * (a21 * a33 - a23 * a31) - a20 * (a01 * a33 - a03 * a31) + a30 * (a01 * a23 - a03 * a21));\n out[10] = (a00 * (a11 * a33 - a13 * a31) - a10 * (a01 * a33 - a03 * a31) + a30 * (a01 * a13 - a03 * a11));\n out[11] = -(a00 * (a11 * a23 - a13 * a21) - a10 * (a01 * a23 - a03 * a21) + a20 * (a01 * a13 - a03 * a11));\n out[12] = -(a10 * (a21 * a32 - a22 * a31) - a20 * (a11 * a32 - a12 * a31) + a30 * (a11 * a22 - a12 * a21));\n out[13] = (a00 * (a21 * a32 - a22 * a31) - a20 * (a01 * a32 - a02 * a31) + a30 * (a01 * a22 - a02 * a21));\n out[14] = -(a00 * (a11 * a32 - a12 * a31) - a10 * (a01 * a32 - a02 * a31) + a30 * (a01 * a12 - a02 * a11));\n out[15] = (a00 * (a11 * a22 - a12 * a21) - a10 * (a01 * a22 - a02 * a21) + a20 * (a01 * a12 - a02 * a11));\n return out;\n};\n\n/**\n * Calculates the determinant of a mat4\n *\n * @param {mat4} a the source matrix\n * @returns {Number} determinant of a\n */\nmat4.determinant = function (a) {\n var a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3],\n a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7],\n a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11],\n a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15],\n\n b00 = a00 * a11 - a01 * a10,\n b01 = a00 * a12 - a02 * a10,\n b02 = a00 * a13 - a03 * a10,\n b03 = a01 * a12 - a02 * a11,\n b04 = a01 * a13 - a03 * a11,\n b05 = a02 * a13 - a03 * a12,\n b06 = a20 * a31 - a21 * a30,\n b07 = a20 * a32 - a22 * a30,\n b08 = a20 * a33 - a23 * a30,\n b09 = a21 * a32 - a22 * a31,\n b10 = a21 * a33 - a23 * a31,\n b11 = a22 * a33 - a23 * a32;\n\n // Calculate the determinant\n return b00 * b11 - b01 * b10 + b02 * b09 + b03 * b08 - b04 * b07 + b05 * b06;\n};\n\n/**\n * Multiplies two mat4's\n *\n * @param {mat4} out the receiving matrix\n * @param {mat4} a the first operand\n * @param {mat4} b the second operand\n * @returns {mat4} out\n */\nmat4.multiply = function (out, a, b) {\n var a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3],\n a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7],\n a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11],\n a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15];\n\n // Cache only the current line of the second matrix\n var b0 = b[0], b1 = b[1], b2 = b[2], b3 = b[3]; \n out[0] = b0*a00 + b1*a10 + b2*a20 + b3*a30;\n out[1] = b0*a01 + b1*a11 + b2*a21 + b3*a31;\n out[2] = b0*a02 + b1*a12 + b2*a22 + b3*a32;\n out[3] = b0*a03 + b1*a13 + b2*a23 + b3*a33;\n\n b0 = b[4]; b1 = b[5]; b2 = b[6]; b3 = b[7];\n out[4] = b0*a00 + b1*a10 + b2*a20 + b3*a30;\n out[5] = b0*a01 + b1*a11 + b2*a21 + b3*a31;\n out[6] = b0*a02 + b1*a12 + b2*a22 + b3*a32;\n out[7] = b0*a03 + b1*a13 + b2*a23 + b3*a33;\n\n b0 = b[8]; b1 = b[9]; b2 = b[10]; b3 = b[11];\n out[8] = b0*a00 + b1*a10 + b2*a20 + b3*a30;\n out[9] = b0*a01 + b1*a11 + b2*a21 + b3*a31;\n out[10] = b0*a02 + b1*a12 + b2*a22 + b3*a32;\n out[11] = b0*a03 + b1*a13 + b2*a23 + b3*a33;\n\n b0 = b[12]; b1 = b[13]; b2 = b[14]; b3 = b[15];\n out[12] = b0*a00 + b1*a10 + b2*a20 + b3*a30;\n out[13] = b0*a01 + b1*a11 + b2*a21 + b3*a31;\n out[14] = b0*a02 + b1*a12 + b2*a22 + b3*a32;\n out[15] = b0*a03 + b1*a13 + b2*a23 + b3*a33;\n return out;\n};\n\n/**\n * Alias for {@link mat4.multiply}\n * @function\n */\nmat4.mul = mat4.multiply;\n\n/**\n * Translate a mat4 by the given vector\n *\n * @param {mat4} out the receiving matrix\n * @param {mat4} a the matrix to translate\n * @param {vec3} v vector to translate by\n * @returns {mat4} out\n */\nmat4.translate = function (out, a, v) {\n var x = v[0], y = v[1], z = v[2],\n a00, a01, a02, a03,\n a10, a11, a12, a13,\n a20, a21, a22, a23;\n\n if (a === out) {\n out[12] = a[0] * x + a[4] * y + a[8] * z + a[12];\n out[13] = a[1] * x + a[5] * y + a[9] * z + a[13];\n out[14] = a[2] * x + a[6] * y + a[10] * z + a[14];\n out[15] = a[3] * x + a[7] * y + a[11] * z + a[15];\n } else {\n a00 = a[0]; a01 = a[1]; a02 = a[2]; a03 = a[3];\n a10 = a[4]; a11 = a[5]; a12 = a[6]; a13 = a[7];\n a20 = a[8]; a21 = a[9]; a22 = a[10]; a23 = a[11];\n\n out[0] = a00; out[1] = a01; out[2] = a02; out[3] = a03;\n out[4] = a10; out[5] = a11; out[6] = a12; out[7] = a13;\n out[8] = a20; out[9] = a21; out[10] = a22; out[11] = a23;\n\n out[12] = a00 * x + a10 * y + a20 * z + a[12];\n out[13] = a01 * x + a11 * y + a21 * z + a[13];\n out[14] = a02 * x + a12 * y + a22 * z + a[14];\n out[15] = a03 * x + a13 * y + a23 * z + a[15];\n }\n\n return out;\n};\n\n/**\n * Scales the mat4 by the dimensions in the given vec3\n *\n * @param {mat4} out the receiving matrix\n * @param {mat4} a the matrix to scale\n * @param {vec3} v the vec3 to scale the matrix by\n * @returns {mat4} out\n **/\nmat4.scale = function(out, a, v) {\n var x = v[0], y = v[1], z = v[2];\n\n out[0] = a[0] * x;\n out[1] = a[1] * x;\n out[2] = a[2] * x;\n out[3] = a[3] * x;\n out[4] = a[4] * y;\n out[5] = a[5] * y;\n out[6] = a[6] * y;\n out[7] = a[7] * y;\n out[8] = a[8] * z;\n out[9] = a[9] * z;\n out[10] = a[10] * z;\n out[11] = a[11] * z;\n out[12] = a[12];\n out[13] = a[13];\n out[14] = a[14];\n out[15] = a[15];\n return out;\n};\n\n/**\n * Rotates a mat4 by the given angle around the given axis\n *\n * @param {mat4} out the receiving matrix\n * @param {mat4} a the matrix to rotate\n * @param {Number} rad the angle to rotate the matrix by\n * @param {vec3} axis the axis to rotate around\n * @returns {mat4} out\n */\nmat4.rotate = function (out, a, rad, axis) {\n var x = axis[0], y = axis[1], z = axis[2],\n len = Math.sqrt(x * x + y * y + z * z),\n s, c, t,\n a00, a01, a02, a03,\n a10, a11, a12, a13,\n a20, a21, a22, a23,\n b00, b01, b02,\n b10, b11, b12,\n b20, b21, b22;\n\n if (Math.abs(len) < glMatrix.EPSILON) { return null; }\n \n len = 1 / len;\n x *= len;\n y *= len;\n z *= len;\n\n s = Math.sin(rad);\n c = Math.cos(rad);\n t = 1 - c;\n\n a00 = a[0]; a01 = a[1]; a02 = a[2]; a03 = a[3];\n a10 = a[4]; a11 = a[5]; a12 = a[6]; a13 = a[7];\n a20 = a[8]; a21 = a[9]; a22 = a[10]; a23 = a[11];\n\n // Construct the elements of the rotation matrix\n b00 = x * x * t + c; b01 = y * x * t + z * s; b02 = z * x * t - y * s;\n b10 = x * y * t - z * s; b11 = y * y * t + c; b12 = z * y * t + x * s;\n b20 = x * z * t + y * s; b21 = y * z * t - x * s; b22 = z * z * t + c;\n\n // Perform rotation-specific matrix multiplication\n out[0] = a00 * b00 + a10 * b01 + a20 * b02;\n out[1] = a01 * b00 + a11 * b01 + a21 * b02;\n out[2] = a02 * b00 + a12 * b01 + a22 * b02;\n out[3] = a03 * b00 + a13 * b01 + a23 * b02;\n out[4] = a00 * b10 + a10 * b11 + a20 * b12;\n out[5] = a01 * b10 + a11 * b11 + a21 * b12;\n out[6] = a02 * b10 + a12 * b11 + a22 * b12;\n out[7] = a03 * b10 + a13 * b11 + a23 * b12;\n out[8] = a00 * b20 + a10 * b21 + a20 * b22;\n out[9] = a01 * b20 + a11 * b21 + a21 * b22;\n out[10] = a02 * b20 + a12 * b21 + a22 * b22;\n out[11] = a03 * b20 + a13 * b21 + a23 * b22;\n\n if (a !== out) { // If the source and destination differ, copy the unchanged last row\n out[12] = a[12];\n out[13] = a[13];\n out[14] = a[14];\n out[15] = a[15];\n }\n return out;\n};\n\n/**\n * Rotates a matrix by the given angle around the X axis\n *\n * @param {mat4} out the receiving matrix\n * @param {mat4} a the matrix to rotate\n * @param {Number} rad the angle to rotate the matrix by\n * @returns {mat4} out\n */\nmat4.rotateX = function (out, a, rad) {\n var s = Math.sin(rad),\n c = Math.cos(rad),\n a10 = a[4],\n a11 = a[5],\n a12 = a[6],\n a13 = a[7],\n a20 = a[8],\n a21 = a[9],\n a22 = a[10],\n a23 = a[11];\n\n if (a !== out) { // If the source and destination differ, copy the unchanged rows\n out[0] = a[0];\n out[1] = a[1];\n out[2] = a[2];\n out[3] = a[3];\n out[12] = a[12];\n out[13] = a[13];\n out[14] = a[14];\n out[15] = a[15];\n }\n\n // Perform axis-specific matrix multiplication\n out[4] = a10 * c + a20 * s;\n out[5] = a11 * c + a21 * s;\n out[6] = a12 * c + a22 * s;\n out[7] = a13 * c + a23 * s;\n out[8] = a20 * c - a10 * s;\n out[9] = a21 * c - a11 * s;\n out[10] = a22 * c - a12 * s;\n out[11] = a23 * c - a13 * s;\n return out;\n};\n\n/**\n * Rotates a matrix by the given angle around the Y axis\n *\n * @param {mat4} out the receiving matrix\n * @param {mat4} a the matrix to rotate\n * @param {Number} rad the angle to rotate the matrix by\n * @returns {mat4} out\n */\nmat4.rotateY = function (out, a, rad) {\n var s = Math.sin(rad),\n c = Math.cos(rad),\n a00 = a[0],\n a01 = a[1],\n a02 = a[2],\n a03 = a[3],\n a20 = a[8],\n a21 = a[9],\n a22 = a[10],\n a23 = a[11];\n\n if (a !== out) { // If the source and destination differ, copy the unchanged rows\n out[4] = a[4];\n out[5] = a[5];\n out[6] = a[6];\n out[7] = a[7];\n out[12] = a[12];\n out[13] = a[13];\n out[14] = a[14];\n out[15] = a[15];\n }\n\n // Perform axis-specific matrix multiplication\n out[0] = a00 * c - a20 * s;\n out[1] = a01 * c - a21 * s;\n out[2] = a02 * c - a22 * s;\n out[3] = a03 * c - a23 * s;\n out[8] = a00 * s + a20 * c;\n out[9] = a01 * s + a21 * c;\n out[10] = a02 * s + a22 * c;\n out[11] = a03 * s + a23 * c;\n return out;\n};\n\n/**\n * Rotates a matrix by the given angle around the Z axis\n *\n * @param {mat4} out the receiving matrix\n * @param {mat4} a the matrix to rotate\n * @param {Number} rad the angle to rotate the matrix by\n * @returns {mat4} out\n */\nmat4.rotateZ = function (out, a, rad) {\n var s = Math.sin(rad),\n c = Math.cos(rad),\n a00 = a[0],\n a01 = a[1],\n a02 = a[2],\n a03 = a[3],\n a10 = a[4],\n a11 = a[5],\n a12 = a[6],\n a13 = a[7];\n\n if (a !== out) { // If the source and destination differ, copy the unchanged last row\n out[8] = a[8];\n out[9] = a[9];\n out[10] = a[10];\n out[11] = a[11];\n out[12] = a[12];\n out[13] = a[13];\n out[14] = a[14];\n out[15] = a[15];\n }\n\n // Perform axis-specific matrix multiplication\n out[0] = a00 * c + a10 * s;\n out[1] = a01 * c + a11 * s;\n out[2] = a02 * c + a12 * s;\n out[3] = a03 * c + a13 * s;\n out[4] = a10 * c - a00 * s;\n out[5] = a11 * c - a01 * s;\n out[6] = a12 * c - a02 * s;\n out[7] = a13 * c - a03 * s;\n return out;\n};\n\n/**\n * Creates a matrix from a vector translation\n * This is equivalent to (but much faster than):\n *\n * mat4.identity(dest);\n * mat4.translate(dest, dest, vec);\n *\n * @param {mat4} out mat4 receiving operation result\n * @param {vec3} v Translation vector\n * @returns {mat4} out\n */\nmat4.fromTranslation = function(out, v) {\n out[0] = 1;\n out[1] = 0;\n out[2] = 0;\n out[3] = 0;\n out[4] = 0;\n out[5] = 1;\n out[6] = 0;\n out[7] = 0;\n out[8] = 0;\n out[9] = 0;\n out[10] = 1;\n out[11] = 0;\n out[12] = v[0];\n out[13] = v[1];\n out[14] = v[2];\n out[15] = 1;\n return out;\n}\n\n/**\n * Creates a matrix from a vector scaling\n * This is equivalent to (but much faster than):\n *\n * mat4.identity(dest);\n * mat4.scale(dest, dest, vec);\n *\n * @param {mat4} out mat4 receiving operation result\n * @param {vec3} v Scaling vector\n * @returns {mat4} out\n */\nmat4.fromScaling = function(out, v) {\n out[0] = v[0];\n out[1] = 0;\n out[2] = 0;\n out[3] = 0;\n out[4] = 0;\n out[5] = v[1];\n out[6] = 0;\n out[7] = 0;\n out[8] = 0;\n out[9] = 0;\n out[10] = v[2];\n out[11] = 0;\n out[12] = 0;\n out[13] = 0;\n out[14] = 0;\n out[15] = 1;\n return out;\n}\n\n/**\n * Creates a matrix from a given angle around a given axis\n * This is equivalent to (but much faster than):\n *\n * mat4.identity(dest);\n * mat4.rotate(dest, dest, rad, axis);\n *\n * @param {mat4} out mat4 receiving operation result\n * @param {Number} rad the angle to rotate the matrix by\n * @param {vec3} axis the axis to rotate around\n * @returns {mat4} out\n */\nmat4.fromRotation = function(out, rad, axis) {\n var x = axis[0], y = axis[1], z = axis[2],\n len = Math.sqrt(x * x + y * y + z * z),\n s, c, t;\n \n if (Math.abs(len) < glMatrix.EPSILON) { return null; }\n \n len = 1 / len;\n x *= len;\n y *= len;\n z *= len;\n \n s = Math.sin(rad);\n c = Math.cos(rad);\n t = 1 - c;\n \n // Perform rotation-specific matrix multiplication\n out[0] = x * x * t + c;\n out[1] = y * x * t + z * s;\n out[2] = z * x * t - y * s;\n out[3] = 0;\n out[4] = x * y * t - z * s;\n out[5] = y * y * t + c;\n out[6] = z * y * t + x * s;\n out[7] = 0;\n out[8] = x * z * t + y * s;\n out[9] = y * z * t - x * s;\n out[10] = z * z * t + c;\n out[11] = 0;\n out[12] = 0;\n out[13] = 0;\n out[14] = 0;\n out[15] = 1;\n return out;\n}\n\n/**\n * Creates a matrix from the given angle around the X axis\n * This is equivalent to (but much faster than):\n *\n * mat4.identity(dest);\n * mat4.rotateX(dest, dest, rad);\n *\n * @param {mat4} out mat4 receiving operation result\n * @param {Number} rad the angle to rotate the matrix by\n * @returns {mat4} out\n */\nmat4.fromXRotation = function(out, rad) {\n var s = Math.sin(rad),\n c = Math.cos(rad);\n \n // Perform axis-specific matrix multiplication\n out[0] = 1;\n out[1] = 0;\n out[2] = 0;\n out[3] = 0;\n out[4] = 0;\n out[5] = c;\n out[6] = s;\n out[7] = 0;\n out[8] = 0;\n out[9] = -s;\n out[10] = c;\n out[11] = 0;\n out[12] = 0;\n out[13] = 0;\n out[14] = 0;\n out[15] = 1;\n return out;\n}\n\n/**\n * Creates a matrix from the given angle around the Y axis\n * This is equivalent to (but much faster than):\n *\n * mat4.identity(dest);\n * mat4.rotateY(dest, dest, rad);\n *\n * @param {mat4} out mat4 receiving operation result\n * @param {Number} rad the angle to rotate the matrix by\n * @returns {mat4} out\n */\nmat4.fromYRotation = function(out, rad) {\n var s = Math.sin(rad),\n c = Math.cos(rad);\n \n // Perform axis-specific matrix multiplication\n out[0] = c;\n out[1] = 0;\n out[2] = -s;\n out[3] = 0;\n out[4] = 0;\n out[5] = 1;\n out[6] = 0;\n out[7] = 0;\n out[8] = s;\n out[9] = 0;\n out[10] = c;\n out[11] = 0;\n out[12] = 0;\n out[13] = 0;\n out[14] = 0;\n out[15] = 1;\n return out;\n}\n\n/**\n * Creates a matrix from the given angle around the Z axis\n * This is equivalent to (but much faster than):\n *\n * mat4.identity(dest);\n * mat4.rotateZ(dest, dest, rad);\n *\n * @param {mat4} out mat4 receiving operation result\n * @param {Number} rad the angle to rotate the matrix by\n * @returns {mat4} out\n */\nmat4.fromZRotation = function(out, rad) {\n var s = Math.sin(rad),\n c = Math.cos(rad);\n \n // Perform axis-specific matrix multiplication\n out[0] = c;\n out[1] = s;\n out[2] = 0;\n out[3] = 0;\n out[4] = -s;\n out[5] = c;\n out[6] = 0;\n out[7] = 0;\n out[8] = 0;\n out[9] = 0;\n out[10] = 1;\n out[11] = 0;\n out[12] = 0;\n out[13] = 0;\n out[14] = 0;\n out[15] = 1;\n return out;\n}\n\n/**\n * Creates a matrix from a quaternion rotation and vector translation\n * This is equivalent to (but much faster than):\n *\n * mat4.identity(dest);\n * mat4.translate(dest, vec);\n * var quatMat = mat4.create();\n * quat4.toMat4(quat, quatMat);\n * mat4.multiply(dest, quatMat);\n *\n * @param {mat4} out mat4 receiving operation result\n * @param {quat4} q Rotation quaternion\n * @param {vec3} v Translation vector\n * @returns {mat4} out\n */\nmat4.fromRotationTranslation = function (out, q, v) {\n // Quaternion math\n var x = q[0], y = q[1], z = q[2], w = q[3],\n x2 = x + x,\n y2 = y + y,\n z2 = z + z,\n\n xx = x * x2,\n xy = x * y2,\n xz = x * z2,\n yy = y * y2,\n yz = y * z2,\n zz = z * z2,\n wx = w * x2,\n wy = w * y2,\n wz = w * z2;\n\n out[0] = 1 - (yy + zz);\n out[1] = xy + wz;\n out[2] = xz - wy;\n out[3] = 0;\n out[4] = xy - wz;\n out[5] = 1 - (xx + zz);\n out[6] = yz + wx;\n out[7] = 0;\n out[8] = xz + wy;\n out[9] = yz - wx;\n out[10] = 1 - (xx + yy);\n out[11] = 0;\n out[12] = v[0];\n out[13] = v[1];\n out[14] = v[2];\n out[15] = 1;\n \n return out;\n};\n\n/**\n * Creates a matrix from a quaternion rotation, vector translation and vector scale\n * This is equivalent to (but much faster than):\n *\n * mat4.identity(dest);\n * mat4.translate(dest, vec);\n * var quatMat = mat4.create();\n * quat4.toMat4(quat, quatMat);\n * mat4.multiply(dest, quatMat);\n * mat4.scale(dest, scale)\n *\n * @param {mat4} out mat4 receiving operation result\n * @param {quat4} q Rotation quaternion\n * @param {vec3} v Translation vector\n * @param {vec3} s Scaling vector\n * @returns {mat4} out\n */\nmat4.fromRotationTranslationScale = function (out, q, v, s) {\n // Quaternion math\n var x = q[0], y = q[1], z = q[2], w = q[3],\n x2 = x + x,\n y2 = y + y,\n z2 = z + z,\n\n xx = x * x2,\n xy = x * y2,\n xz = x * z2,\n yy = y * y2,\n yz = y * z2,\n zz = z * z2,\n wx = w * x2,\n wy = w * y2,\n wz = w * z2,\n sx = s[0],\n sy = s[1],\n sz = s[2];\n\n out[0] = (1 - (yy + zz)) * sx;\n out[1] = (xy + wz) * sx;\n out[2] = (xz - wy) * sx;\n out[3] = 0;\n out[4] = (xy - wz) * sy;\n out[5] = (1 - (xx + zz)) * sy;\n out[6] = (yz + wx) * sy;\n out[7] = 0;\n out[8] = (xz + wy) * sz;\n out[9] = (yz - wx) * sz;\n out[10] = (1 - (xx + yy)) * sz;\n out[11] = 0;\n out[12] = v[0];\n out[13] = v[1];\n out[14] = v[2];\n out[15] = 1;\n \n return out;\n};\n\n/**\n * Creates a matrix from a quaternion rotation, vector translation and vector scale, rotating and scaling around the given origin\n * This is equivalent to (but much faster than):\n *\n * mat4.identity(dest);\n * mat4.translate(dest, vec);\n * mat4.translate(dest, origin);\n * var quatMat = mat4.create();\n * quat4.toMat4(quat, quatMat);\n * mat4.multiply(dest, quatMat);\n * mat4.scale(dest, scale)\n * mat4.translate(dest, negativeOrigin);\n *\n * @param {mat4} out mat4 receiving operation result\n * @param {quat4} q Rotation quaternion\n * @param {vec3} v Translation vector\n * @param {vec3} s Scaling vector\n * @param {vec3} o The origin vector around which to scale and rotate\n * @returns {mat4} out\n */\nmat4.fromRotationTranslationScaleOrigin = function (out, q, v, s, o) {\n // Quaternion math\n var x = q[0], y = q[1], z = q[2], w = q[3],\n x2 = x + x,\n y2 = y + y,\n z2 = z + z,\n\n xx = x * x2,\n xy = x * y2,\n xz = x * z2,\n yy = y * y2,\n yz = y * z2,\n zz = z * z2,\n wx = w * x2,\n wy = w * y2,\n wz = w * z2,\n \n sx = s[0],\n sy = s[1],\n sz = s[2],\n\n ox = o[0],\n oy = o[1],\n oz = o[2];\n \n out[0] = (1 - (yy + zz)) * sx;\n out[1] = (xy + wz) * sx;\n out[2] = (xz - wy) * sx;\n out[3] = 0;\n out[4] = (xy - wz) * sy;\n out[5] = (1 - (xx + zz)) * sy;\n out[6] = (yz + wx) * sy;\n out[7] = 0;\n out[8] = (xz + wy) * sz;\n out[9] = (yz - wx) * sz;\n out[10] = (1 - (xx + yy)) * sz;\n out[11] = 0;\n out[12] = v[0] + ox - (out[0] * ox + out[4] * oy + out[8] * oz);\n out[13] = v[1] + oy - (out[1] * ox + out[5] * oy + out[9] * oz);\n out[14] = v[2] + oz - (out[2] * ox + out[6] * oy + out[10] * oz);\n out[15] = 1;\n \n return out;\n};\n\nmat4.fromQuat = function (out, q) {\n var x = q[0], y = q[1], z = q[2], w = q[3],\n x2 = x + x,\n y2 = y + y,\n z2 = z + z,\n\n xx = x * x2,\n yx = y * x2,\n yy = y * y2,\n zx = z * x2,\n zy = z * y2,\n zz = z * z2,\n wx = w * x2,\n wy = w * y2,\n wz = w * z2;\n\n out[0] = 1 - yy - zz;\n out[1] = yx + wz;\n out[2] = zx - wy;\n out[3] = 0;\n\n out[4] = yx - wz;\n out[5] = 1 - xx - zz;\n out[6] = zy + wx;\n out[7] = 0;\n\n out[8] = zx + wy;\n out[9] = zy - wx;\n out[10] = 1 - xx - yy;\n out[11] = 0;\n\n out[12] = 0;\n out[13] = 0;\n out[14] = 0;\n out[15] = 1;\n\n return out;\n};\n\n/**\n * Generates a frustum matrix with the given bounds\n *\n * @param {mat4} out mat4 frustum matrix will be written into\n * @param {Number} left Left bound of the frustum\n * @param {Number} right Right bound of the frustum\n * @param {Number} bottom Bottom bound of the frustum\n * @param {Number} top Top bound of the frustum\n * @param {Number} near Near bound of the frustum\n * @param {Number} far Far bound of the frustum\n * @returns {mat4} out\n */\nmat4.frustum = function (out, left, right, bottom, top, near, far) {\n var rl = 1 / (right - left),\n tb = 1 / (top - bottom),\n nf = 1 / (near - far);\n out[0] = (near * 2) * rl;\n out[1] = 0;\n out[2] = 0;\n out[3] = 0;\n out[4] = 0;\n out[5] = (near * 2) * tb;\n out[6] = 0;\n out[7] = 0;\n out[8] = (right + left) * rl;\n out[9] = (top + bottom) * tb;\n out[10] = (far + near) * nf;\n out[11] = -1;\n out[12] = 0;\n out[13] = 0;\n out[14] = (far * near * 2) * nf;\n out[15] = 0;\n return out;\n};\n\n/**\n * Generates a perspective projection matrix with the given bounds\n *\n * @param {mat4} out mat4 frustum matrix will be written into\n * @param {number} fovy Vertical field of view in radians\n * @param {number} aspect Aspect ratio. typically viewport width/height\n * @param {number} near Near bound of the frustum\n * @param {number} far Far bound of the frustum\n * @returns {mat4} out\n */\nmat4.perspective = function (out, fovy, aspect, near, far) {\n var f = 1.0 / Math.tan(fovy / 2),\n nf = 1 / (near - far);\n out[0] = f / aspect;\n out[1] = 0;\n out[2] = 0;\n out[3] = 0;\n out[4] = 0;\n out[5] = f;\n out[6] = 0;\n out[7] = 0;\n out[8] = 0;\n out[9] = 0;\n out[10] = (far + near) * nf;\n out[11] = -1;\n out[12] = 0;\n out[13] = 0;\n out[14] = (2 * far * near) * nf;\n out[15] = 0;\n return out;\n};\n\n/**\n * Generates a perspective projection matrix with the given field of view.\n * This is primarily useful for generating projection matrices to be used\n * with the still experiemental WebVR API.\n *\n * @param {mat4} out mat4 frustum matrix will be written into\n * @param {number} fov Object containing the following values: upDegrees, downDegrees, leftDegrees, rightDegrees\n * @param {number} near Near bound of the frustum\n * @param {number} far Far bound of the frustum\n * @returns {mat4} out\n */\nmat4.perspectiveFromFieldOfView = function (out, fov, near, far) {\n var upTan = Math.tan(fov.upDegrees * Math.PI/180.0),\n downTan = Math.tan(fov.downDegrees * Math.PI/180.0),\n leftTan = Math.tan(fov.leftDegrees * Math.PI/180.0),\n rightTan = Math.tan(fov.rightDegrees * Math.PI/180.0),\n xScale = 2.0 / (leftTan + rightTan),\n yScale = 2.0 / (upTan + downTan);\n\n out[0] = xScale;\n out[1] = 0.0;\n out[2] = 0.0;\n out[3] = 0.0;\n out[4] = 0.0;\n out[5] = yScale;\n out[6] = 0.0;\n out[7] = 0.0;\n out[8] = -((leftTan - rightTan) * xScale * 0.5);\n out[9] = ((upTan - downTan) * yScale * 0.5);\n out[10] = far / (near - far);\n out[11] = -1.0;\n out[12] = 0.0;\n out[13] = 0.0;\n out[14] = (far * near) / (near - far);\n out[15] = 0.0;\n return out;\n}\n\n/**\n * Generates a orthogonal projection matrix with the given bounds\n *\n * @param {mat4} out mat4 frustum matrix will be written into\n * @param {number} left Left bound of the frustum\n * @param {number} right Right bound of the frustum\n * @param {number} bottom Bottom bound of the frustum\n * @param {number} top Top bound of the frustum\n * @param {number} near Near bound of the frustum\n * @param {number} far Far bound of the frustum\n * @returns {mat4} out\n */\nmat4.ortho = function (out, left, right, bottom, top, near, far) {\n var lr = 1 / (left - right),\n bt = 1 / (bottom - top),\n nf = 1 / (near - far);\n out[0] = -2 * lr;\n out[1] = 0;\n out[2] = 0;\n out[3] = 0;\n out[4] = 0;\n out[5] = -2 * bt;\n out[6] = 0;\n out[7] = 0;\n out[8] = 0;\n out[9] = 0;\n out[10] = 2 * nf;\n out[11] = 0;\n out[12] = (left + right) * lr;\n out[13] = (top + bottom) * bt;\n out[14] = (far + near) * nf;\n out[15] = 1;\n return out;\n};\n\n/**\n * Generates a look-at matrix with the given eye position, focal point, and up axis\n *\n * @param {mat4} out mat4 frustum matrix will be written into\n * @param {vec3} eye Position of the viewer\n * @param {vec3} center Point the viewer is looking at\n * @param {vec3} up vec3 pointing up\n * @returns {mat4} out\n */\nmat4.lookAt = function (out, eye, center, up) {\n var x0, x1, x2, y0, y1, y2, z0, z1, z2, len,\n eyex = eye[0],\n eyey = eye[1],\n eyez = eye[2],\n upx = up[0],\n upy = up[1],\n upz = up[2],\n centerx = center[0],\n centery = center[1],\n centerz = center[2];\n\n if (Math.abs(eyex - centerx) < glMatrix.EPSILON &&\n Math.abs(eyey - centery) < glMatrix.EPSILON &&\n Math.abs(eyez - centerz) < glMatrix.EPSILON) {\n return mat4.identity(out);\n }\n\n z0 = eyex - centerx;\n z1 = eyey - centery;\n z2 = eyez - centerz;\n\n len = 1 / Math.sqrt(z0 * z0 + z1 * z1 + z2 * z2);\n z0 *= len;\n z1 *= len;\n z2 *= len;\n\n x0 = upy * z2 - upz * z1;\n x1 = upz * z0 - upx * z2;\n x2 = upx * z1 - upy * z0;\n len = Math.sqrt(x0 * x0 + x1 * x1 + x2 * x2);\n if (!len) {\n x0 = 0;\n x1 = 0;\n x2 = 0;\n } else {\n len = 1 / len;\n x0 *= len;\n x1 *= len;\n x2 *= len;\n }\n\n y0 = z1 * x2 - z2 * x1;\n y1 = z2 * x0 - z0 * x2;\n y2 = z0 * x1 - z1 * x0;\n\n len = Math.sqrt(y0 * y0 + y1 * y1 + y2 * y2);\n if (!len) {\n y0 = 0;\n y1 = 0;\n y2 = 0;\n } else {\n len = 1 / len;\n y0 *= len;\n y1 *= len;\n y2 *= len;\n }\n\n out[0] = x0;\n out[1] = y0;\n out[2] = z0;\n out[3] = 0;\n out[4] = x1;\n out[5] = y1;\n out[6] = z1;\n out[7] = 0;\n out[8] = x2;\n out[9] = y2;\n out[10] = z2;\n out[11] = 0;\n out[12] = -(x0 * eyex + x1 * eyey + x2 * eyez);\n out[13] = -(y0 * eyex + y1 * eyey + y2 * eyez);\n out[14] = -(z0 * eyex + z1 * eyey + z2 * eyez);\n out[15] = 1;\n\n return out;\n};\n\n/**\n * Returns a string representation of a mat4\n *\n * @param {mat4} mat matrix to represent as a string\n * @returns {String} string representation of the matrix\n */\nmat4.str = function (a) {\n return 'mat4(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' + a[3] + ', ' +\n a[4] + ', ' + a[5] + ', ' + a[6] + ', ' + a[7] + ', ' +\n a[8] + ', ' + a[9] + ', ' + a[10] + ', ' + a[11] + ', ' + \n a[12] + ', ' + a[13] + ', ' + a[14] + ', ' + a[15] + ')';\n};\n\n/**\n * Returns Frobenius norm of a mat4\n *\n * @param {mat4} a the matrix to calculate Frobenius norm of\n * @returns {Number} Frobenius norm\n */\nmat4.frob = function (a) {\n return(Math.sqrt(Math.pow(a[0], 2) + Math.pow(a[1], 2) + Math.pow(a[2], 2) + Math.pow(a[3], 2) + Math.pow(a[4], 2) + Math.pow(a[5], 2) + Math.pow(a[6], 2) + Math.pow(a[7], 2) + Math.pow(a[8], 2) + Math.pow(a[9], 2) + Math.pow(a[10], 2) + Math.pow(a[11], 2) + Math.pow(a[12], 2) + Math.pow(a[13], 2) + Math.pow(a[14], 2) + Math.pow(a[15], 2) ))\n};\n\n\nmodule.exports = mat4;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/gl-matrix/src/gl-matrix/mat4.js\n ** module id = 14\n ** module chunks = 0\n **/","/* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV.\n\nPermission is hereby granted, free of charge, to any person obtaining a copy\nof this software and associated documentation files (the \"Software\"), to deal\nin the Software without restriction, including without limitation the rights\nto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\ncopies of the Software, and to permit persons to whom the Software is\nfurnished to do so, subject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in\nall copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\nFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\nAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\nLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\nOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\nTHE SOFTWARE. */\n\nvar glMatrix = require(\"./common.js\");\nvar mat3 = require(\"./mat3.js\");\nvar vec3 = require(\"./vec3.js\");\nvar vec4 = require(\"./vec4.js\");\n\n/**\n * @class Quaternion\n * @name quat\n */\nvar quat = {};\n\n/**\n * Creates a new identity quat\n *\n * @returns {quat} a new quaternion\n */\nquat.create = function() {\n var out = new glMatrix.ARRAY_TYPE(4);\n out[0] = 0;\n out[1] = 0;\n out[2] = 0;\n out[3] = 1;\n return out;\n};\n\n/**\n * Sets a quaternion to represent the shortest rotation from one\n * vector to another.\n *\n * Both vectors are assumed to be unit length.\n *\n * @param {quat} out the receiving quaternion.\n * @param {vec3} a the initial vector\n * @param {vec3} b the destination vector\n * @returns {quat} out\n */\nquat.rotationTo = (function() {\n var tmpvec3 = vec3.create();\n var xUnitVec3 = vec3.fromValues(1,0,0);\n var yUnitVec3 = vec3.fromValues(0,1,0);\n\n return function(out, a, b) {\n var dot = vec3.dot(a, b);\n if (dot < -0.999999) {\n vec3.cross(tmpvec3, xUnitVec3, a);\n if (vec3.length(tmpvec3) < 0.000001)\n vec3.cross(tmpvec3, yUnitVec3, a);\n vec3.normalize(tmpvec3, tmpvec3);\n quat.setAxisAngle(out, tmpvec3, Math.PI);\n return out;\n } else if (dot > 0.999999) {\n out[0] = 0;\n out[1] = 0;\n out[2] = 0;\n out[3] = 1;\n return out;\n } else {\n vec3.cross(tmpvec3, a, b);\n out[0] = tmpvec3[0];\n out[1] = tmpvec3[1];\n out[2] = tmpvec3[2];\n out[3] = 1 + dot;\n return quat.normalize(out, out);\n }\n };\n})();\n\n/**\n * Sets the specified quaternion with values corresponding to the given\n * axes. Each axis is a vec3 and is expected to be unit length and\n * perpendicular to all other specified axes.\n *\n * @param {vec3} view the vector representing the viewing direction\n * @param {vec3} right the vector representing the local \"right\" direction\n * @param {vec3} up the vector representing the local \"up\" direction\n * @returns {quat} out\n */\nquat.setAxes = (function() {\n var matr = mat3.create();\n\n return function(out, view, right, up) {\n matr[0] = right[0];\n matr[3] = right[1];\n matr[6] = right[2];\n\n matr[1] = up[0];\n matr[4] = up[1];\n matr[7] = up[2];\n\n matr[2] = -view[0];\n matr[5] = -view[1];\n matr[8] = -view[2];\n\n return quat.normalize(out, quat.fromMat3(out, matr));\n };\n})();\n\n/**\n * Creates a new quat initialized with values from an existing quaternion\n *\n * @param {quat} a quaternion to clone\n * @returns {quat} a new quaternion\n * @function\n */\nquat.clone = vec4.clone;\n\n/**\n * Creates a new quat initialized with the given values\n *\n * @param {Number} x X component\n * @param {Number} y Y component\n * @param {Number} z Z component\n * @param {Number} w W component\n * @returns {quat} a new quaternion\n * @function\n */\nquat.fromValues = vec4.fromValues;\n\n/**\n * Copy the values from one quat to another\n *\n * @param {quat} out the receiving quaternion\n * @param {quat} a the source quaternion\n * @returns {quat} out\n * @function\n */\nquat.copy = vec4.copy;\n\n/**\n * Set the components of a quat to the given values\n *\n * @param {quat} out the receiving quaternion\n * @param {Number} x X component\n * @param {Number} y Y component\n * @param {Number} z Z component\n * @param {Number} w W component\n * @returns {quat} out\n * @function\n */\nquat.set = vec4.set;\n\n/**\n * Set a quat to the identity quaternion\n *\n * @param {quat} out the receiving quaternion\n * @returns {quat} out\n */\nquat.identity = function(out) {\n out[0] = 0;\n out[1] = 0;\n out[2] = 0;\n out[3] = 1;\n return out;\n};\n\n/**\n * Sets a quat from the given angle and rotation axis,\n * then returns it.\n *\n * @param {quat} out the receiving quaternion\n * @param {vec3} axis the axis around which to rotate\n * @param {Number} rad the angle in radians\n * @returns {quat} out\n **/\nquat.setAxisAngle = function(out, axis, rad) {\n rad = rad * 0.5;\n var s = Math.sin(rad);\n out[0] = s * axis[0];\n out[1] = s * axis[1];\n out[2] = s * axis[2];\n out[3] = Math.cos(rad);\n return out;\n};\n\n/**\n * Adds two quat's\n *\n * @param {quat} out the receiving quaternion\n * @param {quat} a the first operand\n * @param {quat} b the second operand\n * @returns {quat} out\n * @function\n */\nquat.add = vec4.add;\n\n/**\n * Multiplies two quat's\n *\n * @param {quat} out the receiving quaternion\n * @param {quat} a the first operand\n * @param {quat} b the second operand\n * @returns {quat} out\n */\nquat.multiply = function(out, a, b) {\n var ax = a[0], ay = a[1], az = a[2], aw = a[3],\n bx = b[0], by = b[1], bz = b[2], bw = b[3];\n\n out[0] = ax * bw + aw * bx + ay * bz - az * by;\n out[1] = ay * bw + aw * by + az * bx - ax * bz;\n out[2] = az * bw + aw * bz + ax * by - ay * bx;\n out[3] = aw * bw - ax * bx - ay * by - az * bz;\n return out;\n};\n\n/**\n * Alias for {@link quat.multiply}\n * @function\n */\nquat.mul = quat.multiply;\n\n/**\n * Scales a quat by a scalar number\n *\n * @param {quat} out the receiving vector\n * @param {quat} a the vector to scale\n * @param {Number} b amount to scale the vector by\n * @returns {quat} out\n * @function\n */\nquat.scale = vec4.scale;\n\n/**\n * Rotates a quaternion by the given angle about the X axis\n *\n * @param {quat} out quat receiving operation result\n * @param {quat} a quat to rotate\n * @param {number} rad angle (in radians) to rotate\n * @returns {quat} out\n */\nquat.rotateX = function (out, a, rad) {\n rad *= 0.5; \n\n var ax = a[0], ay = a[1], az = a[2], aw = a[3],\n bx = Math.sin(rad), bw = Math.cos(rad);\n\n out[0] = ax * bw + aw * bx;\n out[1] = ay * bw + az * bx;\n out[2] = az * bw - ay * bx;\n out[3] = aw * bw - ax * bx;\n return out;\n};\n\n/**\n * Rotates a quaternion by the given angle about the Y axis\n *\n * @param {quat} out quat receiving operation result\n * @param {quat} a quat to rotate\n * @param {number} rad angle (in radians) to rotate\n * @returns {quat} out\n */\nquat.rotateY = function (out, a, rad) {\n rad *= 0.5; \n\n var ax = a[0], ay = a[1], az = a[2], aw = a[3],\n by = Math.sin(rad), bw = Math.cos(rad);\n\n out[0] = ax * bw - az * by;\n out[1] = ay * bw + aw * by;\n out[2] = az * bw + ax * by;\n out[3] = aw * bw - ay * by;\n return out;\n};\n\n/**\n * Rotates a quaternion by the given angle about the Z axis\n *\n * @param {quat} out quat receiving operation result\n * @param {quat} a quat to rotate\n * @param {number} rad angle (in radians) to rotate\n * @returns {quat} out\n */\nquat.rotateZ = function (out, a, rad) {\n rad *= 0.5; \n\n var ax = a[0], ay = a[1], az = a[2], aw = a[3],\n bz = Math.sin(rad), bw = Math.cos(rad);\n\n out[0] = ax * bw + ay * bz;\n out[1] = ay * bw - ax * bz;\n out[2] = az * bw + aw * bz;\n out[3] = aw * bw - az * bz;\n return out;\n};\n\n/**\n * Calculates the W component of a quat from the X, Y, and Z components.\n * Assumes that quaternion is 1 unit in length.\n * Any existing W component will be ignored.\n *\n * @param {quat} out the receiving quaternion\n * @param {quat} a quat to calculate W component of\n * @returns {quat} out\n */\nquat.calculateW = function (out, a) {\n var x = a[0], y = a[1], z = a[2];\n\n out[0] = x;\n out[1] = y;\n out[2] = z;\n out[3] = Math.sqrt(Math.abs(1.0 - x * x - y * y - z * z));\n return out;\n};\n\n/**\n * Calculates the dot product of two quat's\n *\n * @param {quat} a the first operand\n * @param {quat} b the second operand\n * @returns {Number} dot product of a and b\n * @function\n */\nquat.dot = vec4.dot;\n\n/**\n * Performs a linear interpolation between two quat's\n *\n * @param {quat} out the receiving quaternion\n * @param {quat} a the first operand\n * @param {quat} b the second operand\n * @param {Number} t interpolation amount between the two inputs\n * @returns {quat} out\n * @function\n */\nquat.lerp = vec4.lerp;\n\n/**\n * Performs a spherical linear interpolation between two quat\n *\n * @param {quat} out the receiving quaternion\n * @param {quat} a the first operand\n * @param {quat} b the second operand\n * @param {Number} t interpolation amount between the two inputs\n * @returns {quat} out\n */\nquat.slerp = function (out, a, b, t) {\n // benchmarks:\n // http://jsperf.com/quaternion-slerp-implementations\n\n var ax = a[0], ay = a[1], az = a[2], aw = a[3],\n bx = b[0], by = b[1], bz = b[2], bw = b[3];\n\n var omega, cosom, sinom, scale0, scale1;\n\n // calc cosine\n cosom = ax * bx + ay * by + az * bz + aw * bw;\n // adjust signs (if necessary)\n if ( cosom < 0.0 ) {\n cosom = -cosom;\n bx = - bx;\n by = - by;\n bz = - bz;\n bw = - bw;\n }\n // calculate coefficients\n if ( (1.0 - cosom) > 0.000001 ) {\n // standard case (slerp)\n omega = Math.acos(cosom);\n sinom = Math.sin(omega);\n scale0 = Math.sin((1.0 - t) * omega) / sinom;\n scale1 = Math.sin(t * omega) / sinom;\n } else { \n // \"from\" and \"to\" quaternions are very close \n // ... so we can do a linear interpolation\n scale0 = 1.0 - t;\n scale1 = t;\n }\n // calculate final values\n out[0] = scale0 * ax + scale1 * bx;\n out[1] = scale0 * ay + scale1 * by;\n out[2] = scale0 * az + scale1 * bz;\n out[3] = scale0 * aw + scale1 * bw;\n \n return out;\n};\n\n/**\n * Performs a spherical linear interpolation with two control points\n *\n * @param {quat} out the receiving quaternion\n * @param {quat} a the first operand\n * @param {quat} b the second operand\n * @param {quat} c the third operand\n * @param {quat} d the fourth operand\n * @param {Number} t interpolation amount\n * @returns {quat} out\n */\nquat.sqlerp = (function () {\n var temp1 = quat.create();\n var temp2 = quat.create();\n \n return function (out, a, b, c, d, t) {\n quat.slerp(temp1, a, d, t);\n quat.slerp(temp2, b, c, t);\n quat.slerp(out, temp1, temp2, 2 * t * (1 - t));\n \n return out;\n };\n}());\n\n/**\n * Calculates the inverse of a quat\n *\n * @param {quat} out the receiving quaternion\n * @param {quat} a quat to calculate inverse of\n * @returns {quat} out\n */\nquat.invert = function(out, a) {\n var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3],\n dot = a0*a0 + a1*a1 + a2*a2 + a3*a3,\n invDot = dot ? 1.0/dot : 0;\n \n // TODO: Would be faster to return [0,0,0,0] immediately if dot == 0\n\n out[0] = -a0*invDot;\n out[1] = -a1*invDot;\n out[2] = -a2*invDot;\n out[3] = a3*invDot;\n return out;\n};\n\n/**\n * Calculates the conjugate of a quat\n * If the quaternion is normalized, this function is faster than quat.inverse and produces the same result.\n *\n * @param {quat} out the receiving quaternion\n * @param {quat} a quat to calculate conjugate of\n * @returns {quat} out\n */\nquat.conjugate = function (out, a) {\n out[0] = -a[0];\n out[1] = -a[1];\n out[2] = -a[2];\n out[3] = a[3];\n return out;\n};\n\n/**\n * Calculates the length of a quat\n *\n * @param {quat} a vector to calculate length of\n * @returns {Number} length of a\n * @function\n */\nquat.length = vec4.length;\n\n/**\n * Alias for {@link quat.length}\n * @function\n */\nquat.len = quat.length;\n\n/**\n * Calculates the squared length of a quat\n *\n * @param {quat} a vector to calculate squared length of\n * @returns {Number} squared length of a\n * @function\n */\nquat.squaredLength = vec4.squaredLength;\n\n/**\n * Alias for {@link quat.squaredLength}\n * @function\n */\nquat.sqrLen = quat.squaredLength;\n\n/**\n * Normalize a quat\n *\n * @param {quat} out the receiving quaternion\n * @param {quat} a quaternion to normalize\n * @returns {quat} out\n * @function\n */\nquat.normalize = vec4.normalize;\n\n/**\n * Creates a quaternion from the given 3x3 rotation matrix.\n *\n * NOTE: The resultant quaternion is not normalized, so you should be sure\n * to renormalize the quaternion yourself where necessary.\n *\n * @param {quat} out the receiving quaternion\n * @param {mat3} m rotation matrix\n * @returns {quat} out\n * @function\n */\nquat.fromMat3 = function(out, m) {\n // Algorithm in Ken Shoemake's article in 1987 SIGGRAPH course notes\n // article \"Quaternion Calculus and Fast Animation\".\n var fTrace = m[0] + m[4] + m[8];\n var fRoot;\n\n if ( fTrace > 0.0 ) {\n // |w| > 1/2, may as well choose w > 1/2\n fRoot = Math.sqrt(fTrace + 1.0); // 2w\n out[3] = 0.5 * fRoot;\n fRoot = 0.5/fRoot; // 1/(4w)\n out[0] = (m[5]-m[7])*fRoot;\n out[1] = (m[6]-m[2])*fRoot;\n out[2] = (m[1]-m[3])*fRoot;\n } else {\n // |w| <= 1/2\n var i = 0;\n if ( m[4] > m[0] )\n i = 1;\n if ( m[8] > m[i*3+i] )\n i = 2;\n var j = (i+1)%3;\n var k = (i+2)%3;\n \n fRoot = Math.sqrt(m[i*3+i]-m[j*3+j]-m[k*3+k] + 1.0);\n out[i] = 0.5 * fRoot;\n fRoot = 0.5 / fRoot;\n out[3] = (m[j*3+k] - m[k*3+j]) * fRoot;\n out[j] = (m[j*3+i] + m[i*3+j]) * fRoot;\n out[k] = (m[k*3+i] + m[i*3+k]) * fRoot;\n }\n \n return out;\n};\n\n/**\n * Returns a string representation of a quatenion\n *\n * @param {quat} vec vector to represent as a string\n * @returns {String} string representation of the vector\n */\nquat.str = function (a) {\n return 'quat(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' + a[3] + ')';\n};\n\nmodule.exports = quat;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/gl-matrix/src/gl-matrix/quat.js\n ** module id = 15\n ** module chunks = 0\n **/","/* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV.\n\nPermission is hereby granted, free of charge, to any person obtaining a copy\nof this software and associated documentation files (the \"Software\"), to deal\nin the Software without restriction, including without limitation the rights\nto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\ncopies of the Software, and to permit persons to whom the Software is\nfurnished to do so, subject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in\nall copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\nFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\nAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\nLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\nOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\nTHE SOFTWARE. */\n\nvar glMatrix = require(\"./common.js\");\n\n/**\n * @class 3 Dimensional Vector\n * @name vec3\n */\nvar vec3 = {};\n\n/**\n * Creates a new, empty vec3\n *\n * @returns {vec3} a new 3D vector\n */\nvec3.create = function() {\n var out = new glMatrix.ARRAY_TYPE(3);\n out[0] = 0;\n out[1] = 0;\n out[2] = 0;\n return out;\n};\n\n/**\n * Creates a new vec3 initialized with values from an existing vector\n *\n * @param {vec3} a vector to clone\n * @returns {vec3} a new 3D vector\n */\nvec3.clone = function(a) {\n var out = new glMatrix.ARRAY_TYPE(3);\n out[0] = a[0];\n out[1] = a[1];\n out[2] = a[2];\n return out;\n};\n\n/**\n * Creates a new vec3 initialized with the given values\n *\n * @param {Number} x X component\n * @param {Number} y Y component\n * @param {Number} z Z component\n * @returns {vec3} a new 3D vector\n */\nvec3.fromValues = function(x, y, z) {\n var out = new glMatrix.ARRAY_TYPE(3);\n out[0] = x;\n out[1] = y;\n out[2] = z;\n return out;\n};\n\n/**\n * Copy the values from one vec3 to another\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the source vector\n * @returns {vec3} out\n */\nvec3.copy = function(out, a) {\n out[0] = a[0];\n out[1] = a[1];\n out[2] = a[2];\n return out;\n};\n\n/**\n * Set the components of a vec3 to the given values\n *\n * @param {vec3} out the receiving vector\n * @param {Number} x X component\n * @param {Number} y Y component\n * @param {Number} z Z component\n * @returns {vec3} out\n */\nvec3.set = function(out, x, y, z) {\n out[0] = x;\n out[1] = y;\n out[2] = z;\n return out;\n};\n\n/**\n * Adds two vec3's\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @returns {vec3} out\n */\nvec3.add = function(out, a, b) {\n out[0] = a[0] + b[0];\n out[1] = a[1] + b[1];\n out[2] = a[2] + b[2];\n return out;\n};\n\n/**\n * Subtracts vector b from vector a\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @returns {vec3} out\n */\nvec3.subtract = function(out, a, b) {\n out[0] = a[0] - b[0];\n out[1] = a[1] - b[1];\n out[2] = a[2] - b[2];\n return out;\n};\n\n/**\n * Alias for {@link vec3.subtract}\n * @function\n */\nvec3.sub = vec3.subtract;\n\n/**\n * Multiplies two vec3's\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @returns {vec3} out\n */\nvec3.multiply = function(out, a, b) {\n out[0] = a[0] * b[0];\n out[1] = a[1] * b[1];\n out[2] = a[2] * b[2];\n return out;\n};\n\n/**\n * Alias for {@link vec3.multiply}\n * @function\n */\nvec3.mul = vec3.multiply;\n\n/**\n * Divides two vec3's\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @returns {vec3} out\n */\nvec3.divide = function(out, a, b) {\n out[0] = a[0] / b[0];\n out[1] = a[1] / b[1];\n out[2] = a[2] / b[2];\n return out;\n};\n\n/**\n * Alias for {@link vec3.divide}\n * @function\n */\nvec3.div = vec3.divide;\n\n/**\n * Returns the minimum of two vec3's\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @returns {vec3} out\n */\nvec3.min = function(out, a, b) {\n out[0] = Math.min(a[0], b[0]);\n out[1] = Math.min(a[1], b[1]);\n out[2] = Math.min(a[2], b[2]);\n return out;\n};\n\n/**\n * Returns the maximum of two vec3's\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @returns {vec3} out\n */\nvec3.max = function(out, a, b) {\n out[0] = Math.max(a[0], b[0]);\n out[1] = Math.max(a[1], b[1]);\n out[2] = Math.max(a[2], b[2]);\n return out;\n};\n\n/**\n * Scales a vec3 by a scalar number\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the vector to scale\n * @param {Number} b amount to scale the vector by\n * @returns {vec3} out\n */\nvec3.scale = function(out, a, b) {\n out[0] = a[0] * b;\n out[1] = a[1] * b;\n out[2] = a[2] * b;\n return out;\n};\n\n/**\n * Adds two vec3's after scaling the second operand by a scalar value\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @param {Number} scale the amount to scale b by before adding\n * @returns {vec3} out\n */\nvec3.scaleAndAdd = function(out, a, b, scale) {\n out[0] = a[0] + (b[0] * scale);\n out[1] = a[1] + (b[1] * scale);\n out[2] = a[2] + (b[2] * scale);\n return out;\n};\n\n/**\n * Calculates the euclidian distance between two vec3's\n *\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @returns {Number} distance between a and b\n */\nvec3.distance = function(a, b) {\n var x = b[0] - a[0],\n y = b[1] - a[1],\n z = b[2] - a[2];\n return Math.sqrt(x*x + y*y + z*z);\n};\n\n/**\n * Alias for {@link vec3.distance}\n * @function\n */\nvec3.dist = vec3.distance;\n\n/**\n * Calculates the squared euclidian distance between two vec3's\n *\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @returns {Number} squared distance between a and b\n */\nvec3.squaredDistance = function(a, b) {\n var x = b[0] - a[0],\n y = b[1] - a[1],\n z = b[2] - a[2];\n return x*x + y*y + z*z;\n};\n\n/**\n * Alias for {@link vec3.squaredDistance}\n * @function\n */\nvec3.sqrDist = vec3.squaredDistance;\n\n/**\n * Calculates the length of a vec3\n *\n * @param {vec3} a vector to calculate length of\n * @returns {Number} length of a\n */\nvec3.length = function (a) {\n var x = a[0],\n y = a[1],\n z = a[2];\n return Math.sqrt(x*x + y*y + z*z);\n};\n\n/**\n * Alias for {@link vec3.length}\n * @function\n */\nvec3.len = vec3.length;\n\n/**\n * Calculates the squared length of a vec3\n *\n * @param {vec3} a vector to calculate squared length of\n * @returns {Number} squared length of a\n */\nvec3.squaredLength = function (a) {\n var x = a[0],\n y = a[1],\n z = a[2];\n return x*x + y*y + z*z;\n};\n\n/**\n * Alias for {@link vec3.squaredLength}\n * @function\n */\nvec3.sqrLen = vec3.squaredLength;\n\n/**\n * Negates the components of a vec3\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a vector to negate\n * @returns {vec3} out\n */\nvec3.negate = function(out, a) {\n out[0] = -a[0];\n out[1] = -a[1];\n out[2] = -a[2];\n return out;\n};\n\n/**\n * Returns the inverse of the components of a vec3\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a vector to invert\n * @returns {vec3} out\n */\nvec3.inverse = function(out, a) {\n out[0] = 1.0 / a[0];\n out[1] = 1.0 / a[1];\n out[2] = 1.0 / a[2];\n return out;\n};\n\n/**\n * Normalize a vec3\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a vector to normalize\n * @returns {vec3} out\n */\nvec3.normalize = function(out, a) {\n var x = a[0],\n y = a[1],\n z = a[2];\n var len = x*x + y*y + z*z;\n if (len > 0) {\n //TODO: evaluate use of glm_invsqrt here?\n len = 1 / Math.sqrt(len);\n out[0] = a[0] * len;\n out[1] = a[1] * len;\n out[2] = a[2] * len;\n }\n return out;\n};\n\n/**\n * Calculates the dot product of two vec3's\n *\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @returns {Number} dot product of a and b\n */\nvec3.dot = function (a, b) {\n return a[0] * b[0] + a[1] * b[1] + a[2] * b[2];\n};\n\n/**\n * Computes the cross product of two vec3's\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @returns {vec3} out\n */\nvec3.cross = function(out, a, b) {\n var ax = a[0], ay = a[1], az = a[2],\n bx = b[0], by = b[1], bz = b[2];\n\n out[0] = ay * bz - az * by;\n out[1] = az * bx - ax * bz;\n out[2] = ax * by - ay * bx;\n return out;\n};\n\n/**\n * Performs a linear interpolation between two vec3's\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @param {Number} t interpolation amount between the two inputs\n * @returns {vec3} out\n */\nvec3.lerp = function (out, a, b, t) {\n var ax = a[0],\n ay = a[1],\n az = a[2];\n out[0] = ax + t * (b[0] - ax);\n out[1] = ay + t * (b[1] - ay);\n out[2] = az + t * (b[2] - az);\n return out;\n};\n\n/**\n * Performs a hermite interpolation with two control points\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @param {vec3} c the third operand\n * @param {vec3} d the fourth operand\n * @param {Number} t interpolation amount between the two inputs\n * @returns {vec3} out\n */\nvec3.hermite = function (out, a, b, c, d, t) {\n var factorTimes2 = t * t,\n factor1 = factorTimes2 * (2 * t - 3) + 1,\n factor2 = factorTimes2 * (t - 2) + t,\n factor3 = factorTimes2 * (t - 1),\n factor4 = factorTimes2 * (3 - 2 * t);\n \n out[0] = a[0] * factor1 + b[0] * factor2 + c[0] * factor3 + d[0] * factor4;\n out[1] = a[1] * factor1 + b[1] * factor2 + c[1] * factor3 + d[1] * factor4;\n out[2] = a[2] * factor1 + b[2] * factor2 + c[2] * factor3 + d[2] * factor4;\n \n return out;\n};\n\n/**\n * Performs a bezier interpolation with two control points\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @param {vec3} c the third operand\n * @param {vec3} d the fourth operand\n * @param {Number} t interpolation amount between the two inputs\n * @returns {vec3} out\n */\nvec3.bezier = function (out, a, b, c, d, t) {\n var inverseFactor = 1 - t,\n inverseFactorTimesTwo = inverseFactor * inverseFactor,\n factorTimes2 = t * t,\n factor1 = inverseFactorTimesTwo * inverseFactor,\n factor2 = 3 * t * inverseFactorTimesTwo,\n factor3 = 3 * factorTimes2 * inverseFactor,\n factor4 = factorTimes2 * t;\n \n out[0] = a[0] * factor1 + b[0] * factor2 + c[0] * factor3 + d[0] * factor4;\n out[1] = a[1] * factor1 + b[1] * factor2 + c[1] * factor3 + d[1] * factor4;\n out[2] = a[2] * factor1 + b[2] * factor2 + c[2] * factor3 + d[2] * factor4;\n \n return out;\n};\n\n/**\n * Generates a random vector with the given scale\n *\n * @param {vec3} out the receiving vector\n * @param {Number} [scale] Length of the resulting vector. If ommitted, a unit vector will be returned\n * @returns {vec3} out\n */\nvec3.random = function (out, scale) {\n scale = scale || 1.0;\n\n var r = glMatrix.RANDOM() * 2.0 * Math.PI;\n var z = (glMatrix.RANDOM() * 2.0) - 1.0;\n var zScale = Math.sqrt(1.0-z*z) * scale;\n\n out[0] = Math.cos(r) * zScale;\n out[1] = Math.sin(r) * zScale;\n out[2] = z * scale;\n return out;\n};\n\n/**\n * Transforms the vec3 with a mat4.\n * 4th vector component is implicitly '1'\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the vector to transform\n * @param {mat4} m matrix to transform with\n * @returns {vec3} out\n */\nvec3.transformMat4 = function(out, a, m) {\n var x = a[0], y = a[1], z = a[2],\n w = m[3] * x + m[7] * y + m[11] * z + m[15];\n w = w || 1.0;\n out[0] = (m[0] * x + m[4] * y + m[8] * z + m[12]) / w;\n out[1] = (m[1] * x + m[5] * y + m[9] * z + m[13]) / w;\n out[2] = (m[2] * x + m[6] * y + m[10] * z + m[14]) / w;\n return out;\n};\n\n/**\n * Transforms the vec3 with a mat3.\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the vector to transform\n * @param {mat4} m the 3x3 matrix to transform with\n * @returns {vec3} out\n */\nvec3.transformMat3 = function(out, a, m) {\n var x = a[0], y = a[1], z = a[2];\n out[0] = x * m[0] + y * m[3] + z * m[6];\n out[1] = x * m[1] + y * m[4] + z * m[7];\n out[2] = x * m[2] + y * m[5] + z * m[8];\n return out;\n};\n\n/**\n * Transforms the vec3 with a quat\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the vector to transform\n * @param {quat} q quaternion to transform with\n * @returns {vec3} out\n */\nvec3.transformQuat = function(out, a, q) {\n // benchmarks: http://jsperf.com/quaternion-transform-vec3-implementations\n\n var x = a[0], y = a[1], z = a[2],\n qx = q[0], qy = q[1], qz = q[2], qw = q[3],\n\n // calculate quat * vec\n ix = qw * x + qy * z - qz * y,\n iy = qw * y + qz * x - qx * z,\n iz = qw * z + qx * y - qy * x,\n iw = -qx * x - qy * y - qz * z;\n\n // calculate result * inverse quat\n out[0] = ix * qw + iw * -qx + iy * -qz - iz * -qy;\n out[1] = iy * qw + iw * -qy + iz * -qx - ix * -qz;\n out[2] = iz * qw + iw * -qz + ix * -qy - iy * -qx;\n return out;\n};\n\n/**\n * Rotate a 3D vector around the x-axis\n * @param {vec3} out The receiving vec3\n * @param {vec3} a The vec3 point to rotate\n * @param {vec3} b The origin of the rotation\n * @param {Number} c The angle of rotation\n * @returns {vec3} out\n */\nvec3.rotateX = function(out, a, b, c){\n var p = [], r=[];\n\t //Translate point to the origin\n\t p[0] = a[0] - b[0];\n\t p[1] = a[1] - b[1];\n \tp[2] = a[2] - b[2];\n\n\t //perform rotation\n\t r[0] = p[0];\n\t r[1] = p[1]*Math.cos(c) - p[2]*Math.sin(c);\n\t r[2] = p[1]*Math.sin(c) + p[2]*Math.cos(c);\n\n\t //translate to correct position\n\t out[0] = r[0] + b[0];\n\t out[1] = r[1] + b[1];\n\t out[2] = r[2] + b[2];\n\n \treturn out;\n};\n\n/**\n * Rotate a 3D vector around the y-axis\n * @param {vec3} out The receiving vec3\n * @param {vec3} a The vec3 point to rotate\n * @param {vec3} b The origin of the rotation\n * @param {Number} c The angle of rotation\n * @returns {vec3} out\n */\nvec3.rotateY = function(out, a, b, c){\n \tvar p = [], r=[];\n \t//Translate point to the origin\n \tp[0] = a[0] - b[0];\n \tp[1] = a[1] - b[1];\n \tp[2] = a[2] - b[2];\n \n \t//perform rotation\n \tr[0] = p[2]*Math.sin(c) + p[0]*Math.cos(c);\n \tr[1] = p[1];\n \tr[2] = p[2]*Math.cos(c) - p[0]*Math.sin(c);\n \n \t//translate to correct position\n \tout[0] = r[0] + b[0];\n \tout[1] = r[1] + b[1];\n \tout[2] = r[2] + b[2];\n \n \treturn out;\n};\n\n/**\n * Rotate a 3D vector around the z-axis\n * @param {vec3} out The receiving vec3\n * @param {vec3} a The vec3 point to rotate\n * @param {vec3} b The origin of the rotation\n * @param {Number} c The angle of rotation\n * @returns {vec3} out\n */\nvec3.rotateZ = function(out, a, b, c){\n \tvar p = [], r=[];\n \t//Translate point to the origin\n \tp[0] = a[0] - b[0];\n \tp[1] = a[1] - b[1];\n \tp[2] = a[2] - b[2];\n \n \t//perform rotation\n \tr[0] = p[0]*Math.cos(c) - p[1]*Math.sin(c);\n \tr[1] = p[0]*Math.sin(c) + p[1]*Math.cos(c);\n \tr[2] = p[2];\n \n \t//translate to correct position\n \tout[0] = r[0] + b[0];\n \tout[1] = r[1] + b[1];\n \tout[2] = r[2] + b[2];\n \n \treturn out;\n};\n\n/**\n * Perform some operation over an array of vec3s.\n *\n * @param {Array} a the array of vectors to iterate over\n * @param {Number} stride Number of elements between the start of each vec3. If 0 assumes tightly packed\n * @param {Number} offset Number of elements to skip at the beginning of the array\n * @param {Number} count Number of vec3s to iterate over. If 0 iterates over entire array\n * @param {Function} fn Function to call for each vector in the array\n * @param {Object} [arg] additional argument to pass to fn\n * @returns {Array} a\n * @function\n */\nvec3.forEach = (function() {\n var vec = vec3.create();\n\n return function(a, stride, offset, count, fn, arg) {\n var i, l;\n if(!stride) {\n stride = 3;\n }\n\n if(!offset) {\n offset = 0;\n }\n \n if(count) {\n l = Math.min((count * stride) + offset, a.length);\n } else {\n l = a.length;\n }\n\n for(i = offset; i < l; i += stride) {\n vec[0] = a[i]; vec[1] = a[i+1]; vec[2] = a[i+2];\n fn(vec, vec, arg);\n a[i] = vec[0]; a[i+1] = vec[1]; a[i+2] = vec[2];\n }\n \n return a;\n };\n})();\n\n/**\n * Get the angle between two 3D vectors\n * @param {vec3} a The first operand\n * @param {vec3} b The second operand\n * @returns {Number} The angle in radians\n */\nvec3.angle = function(a, b) {\n \n var tempA = vec3.fromValues(a[0], a[1], a[2]);\n var tempB = vec3.fromValues(b[0], b[1], b[2]);\n \n vec3.normalize(tempA, tempA);\n vec3.normalize(tempB, tempB);\n \n var cosine = vec3.dot(tempA, tempB);\n\n if(cosine > 1.0){\n return 0;\n } else {\n return Math.acos(cosine);\n } \n};\n\n/**\n * Returns a string representation of a vector\n *\n * @param {vec3} vec vector to represent as a string\n * @returns {String} string representation of the vector\n */\nvec3.str = function (a) {\n return 'vec3(' + a[0] + ', ' + a[1] + ', ' + a[2] + ')';\n};\n\nmodule.exports = vec3;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/gl-matrix/src/gl-matrix/vec3.js\n ** module id = 16\n ** module chunks = 0\n **/","/* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV.\n\nPermission is hereby granted, free of charge, to any person obtaining a copy\nof this software and associated documentation files (the \"Software\"), to deal\nin the Software without restriction, including without limitation the rights\nto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\ncopies of the Software, and to permit persons to whom the Software is\nfurnished to do so, subject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in\nall copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\nFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\nAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\nLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\nOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\nTHE SOFTWARE. */\n\nvar glMatrix = require(\"./common.js\");\n\n/**\n * @class 4 Dimensional Vector\n * @name vec4\n */\nvar vec4 = {};\n\n/**\n * Creates a new, empty vec4\n *\n * @returns {vec4} a new 4D vector\n */\nvec4.create = function() {\n var out = new glMatrix.ARRAY_TYPE(4);\n out[0] = 0;\n out[1] = 0;\n out[2] = 0;\n out[3] = 0;\n return out;\n};\n\n/**\n * Creates a new vec4 initialized with values from an existing vector\n *\n * @param {vec4} a vector to clone\n * @returns {vec4} a new 4D vector\n */\nvec4.clone = function(a) {\n var out = new glMatrix.ARRAY_TYPE(4);\n out[0] = a[0];\n out[1] = a[1];\n out[2] = a[2];\n out[3] = a[3];\n return out;\n};\n\n/**\n * Creates a new vec4 initialized with the given values\n *\n * @param {Number} x X component\n * @param {Number} y Y component\n * @param {Number} z Z component\n * @param {Number} w W component\n * @returns {vec4} a new 4D vector\n */\nvec4.fromValues = function(x, y, z, w) {\n var out = new glMatrix.ARRAY_TYPE(4);\n out[0] = x;\n out[1] = y;\n out[2] = z;\n out[3] = w;\n return out;\n};\n\n/**\n * Copy the values from one vec4 to another\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a the source vector\n * @returns {vec4} out\n */\nvec4.copy = function(out, a) {\n out[0] = a[0];\n out[1] = a[1];\n out[2] = a[2];\n out[3] = a[3];\n return out;\n};\n\n/**\n * Set the components of a vec4 to the given values\n *\n * @param {vec4} out the receiving vector\n * @param {Number} x X component\n * @param {Number} y Y component\n * @param {Number} z Z component\n * @param {Number} w W component\n * @returns {vec4} out\n */\nvec4.set = function(out, x, y, z, w) {\n out[0] = x;\n out[1] = y;\n out[2] = z;\n out[3] = w;\n return out;\n};\n\n/**\n * Adds two vec4's\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a the first operand\n * @param {vec4} b the second operand\n * @returns {vec4} out\n */\nvec4.add = function(out, a, b) {\n out[0] = a[0] + b[0];\n out[1] = a[1] + b[1];\n out[2] = a[2] + b[2];\n out[3] = a[3] + b[3];\n return out;\n};\n\n/**\n * Subtracts vector b from vector a\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a the first operand\n * @param {vec4} b the second operand\n * @returns {vec4} out\n */\nvec4.subtract = function(out, a, b) {\n out[0] = a[0] - b[0];\n out[1] = a[1] - b[1];\n out[2] = a[2] - b[2];\n out[3] = a[3] - b[3];\n return out;\n};\n\n/**\n * Alias for {@link vec4.subtract}\n * @function\n */\nvec4.sub = vec4.subtract;\n\n/**\n * Multiplies two vec4's\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a the first operand\n * @param {vec4} b the second operand\n * @returns {vec4} out\n */\nvec4.multiply = function(out, a, b) {\n out[0] = a[0] * b[0];\n out[1] = a[1] * b[1];\n out[2] = a[2] * b[2];\n out[3] = a[3] * b[3];\n return out;\n};\n\n/**\n * Alias for {@link vec4.multiply}\n * @function\n */\nvec4.mul = vec4.multiply;\n\n/**\n * Divides two vec4's\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a the first operand\n * @param {vec4} b the second operand\n * @returns {vec4} out\n */\nvec4.divide = function(out, a, b) {\n out[0] = a[0] / b[0];\n out[1] = a[1] / b[1];\n out[2] = a[2] / b[2];\n out[3] = a[3] / b[3];\n return out;\n};\n\n/**\n * Alias for {@link vec4.divide}\n * @function\n */\nvec4.div = vec4.divide;\n\n/**\n * Returns the minimum of two vec4's\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a the first operand\n * @param {vec4} b the second operand\n * @returns {vec4} out\n */\nvec4.min = function(out, a, b) {\n out[0] = Math.min(a[0], b[0]);\n out[1] = Math.min(a[1], b[1]);\n out[2] = Math.min(a[2], b[2]);\n out[3] = Math.min(a[3], b[3]);\n return out;\n};\n\n/**\n * Returns the maximum of two vec4's\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a the first operand\n * @param {vec4} b the second operand\n * @returns {vec4} out\n */\nvec4.max = function(out, a, b) {\n out[0] = Math.max(a[0], b[0]);\n out[1] = Math.max(a[1], b[1]);\n out[2] = Math.max(a[2], b[2]);\n out[3] = Math.max(a[3], b[3]);\n return out;\n};\n\n/**\n * Scales a vec4 by a scalar number\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a the vector to scale\n * @param {Number} b amount to scale the vector by\n * @returns {vec4} out\n */\nvec4.scale = function(out, a, b) {\n out[0] = a[0] * b;\n out[1] = a[1] * b;\n out[2] = a[2] * b;\n out[3] = a[3] * b;\n return out;\n};\n\n/**\n * Adds two vec4's after scaling the second operand by a scalar value\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a the first operand\n * @param {vec4} b the second operand\n * @param {Number} scale the amount to scale b by before adding\n * @returns {vec4} out\n */\nvec4.scaleAndAdd = function(out, a, b, scale) {\n out[0] = a[0] + (b[0] * scale);\n out[1] = a[1] + (b[1] * scale);\n out[2] = a[2] + (b[2] * scale);\n out[3] = a[3] + (b[3] * scale);\n return out;\n};\n\n/**\n * Calculates the euclidian distance between two vec4's\n *\n * @param {vec4} a the first operand\n * @param {vec4} b the second operand\n * @returns {Number} distance between a and b\n */\nvec4.distance = function(a, b) {\n var x = b[0] - a[0],\n y = b[1] - a[1],\n z = b[2] - a[2],\n w = b[3] - a[3];\n return Math.sqrt(x*x + y*y + z*z + w*w);\n};\n\n/**\n * Alias for {@link vec4.distance}\n * @function\n */\nvec4.dist = vec4.distance;\n\n/**\n * Calculates the squared euclidian distance between two vec4's\n *\n * @param {vec4} a the first operand\n * @param {vec4} b the second operand\n * @returns {Number} squared distance between a and b\n */\nvec4.squaredDistance = function(a, b) {\n var x = b[0] - a[0],\n y = b[1] - a[1],\n z = b[2] - a[2],\n w = b[3] - a[3];\n return x*x + y*y + z*z + w*w;\n};\n\n/**\n * Alias for {@link vec4.squaredDistance}\n * @function\n */\nvec4.sqrDist = vec4.squaredDistance;\n\n/**\n * Calculates the length of a vec4\n *\n * @param {vec4} a vector to calculate length of\n * @returns {Number} length of a\n */\nvec4.length = function (a) {\n var x = a[0],\n y = a[1],\n z = a[2],\n w = a[3];\n return Math.sqrt(x*x + y*y + z*z + w*w);\n};\n\n/**\n * Alias for {@link vec4.length}\n * @function\n */\nvec4.len = vec4.length;\n\n/**\n * Calculates the squared length of a vec4\n *\n * @param {vec4} a vector to calculate squared length of\n * @returns {Number} squared length of a\n */\nvec4.squaredLength = function (a) {\n var x = a[0],\n y = a[1],\n z = a[2],\n w = a[3];\n return x*x + y*y + z*z + w*w;\n};\n\n/**\n * Alias for {@link vec4.squaredLength}\n * @function\n */\nvec4.sqrLen = vec4.squaredLength;\n\n/**\n * Negates the components of a vec4\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a vector to negate\n * @returns {vec4} out\n */\nvec4.negate = function(out, a) {\n out[0] = -a[0];\n out[1] = -a[1];\n out[2] = -a[2];\n out[3] = -a[3];\n return out;\n};\n\n/**\n * Returns the inverse of the components of a vec4\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a vector to invert\n * @returns {vec4} out\n */\nvec4.inverse = function(out, a) {\n out[0] = 1.0 / a[0];\n out[1] = 1.0 / a[1];\n out[2] = 1.0 / a[2];\n out[3] = 1.0 / a[3];\n return out;\n};\n\n/**\n * Normalize a vec4\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a vector to normalize\n * @returns {vec4} out\n */\nvec4.normalize = function(out, a) {\n var x = a[0],\n y = a[1],\n z = a[2],\n w = a[3];\n var len = x*x + y*y + z*z + w*w;\n if (len > 0) {\n len = 1 / Math.sqrt(len);\n out[0] = x * len;\n out[1] = y * len;\n out[2] = z * len;\n out[3] = w * len;\n }\n return out;\n};\n\n/**\n * Calculates the dot product of two vec4's\n *\n * @param {vec4} a the first operand\n * @param {vec4} b the second operand\n * @returns {Number} dot product of a and b\n */\nvec4.dot = function (a, b) {\n return a[0] * b[0] + a[1] * b[1] + a[2] * b[2] + a[3] * b[3];\n};\n\n/**\n * Performs a linear interpolation between two vec4's\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a the first operand\n * @param {vec4} b the second operand\n * @param {Number} t interpolation amount between the two inputs\n * @returns {vec4} out\n */\nvec4.lerp = function (out, a, b, t) {\n var ax = a[0],\n ay = a[1],\n az = a[2],\n aw = a[3];\n out[0] = ax + t * (b[0] - ax);\n out[1] = ay + t * (b[1] - ay);\n out[2] = az + t * (b[2] - az);\n out[3] = aw + t * (b[3] - aw);\n return out;\n};\n\n/**\n * Generates a random vector with the given scale\n *\n * @param {vec4} out the receiving vector\n * @param {Number} [scale] Length of the resulting vector. If ommitted, a unit vector will be returned\n * @returns {vec4} out\n */\nvec4.random = function (out, scale) {\n scale = scale || 1.0;\n\n //TODO: This is a pretty awful way of doing this. Find something better.\n out[0] = glMatrix.RANDOM();\n out[1] = glMatrix.RANDOM();\n out[2] = glMatrix.RANDOM();\n out[3] = glMatrix.RANDOM();\n vec4.normalize(out, out);\n vec4.scale(out, out, scale);\n return out;\n};\n\n/**\n * Transforms the vec4 with a mat4.\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a the vector to transform\n * @param {mat4} m matrix to transform with\n * @returns {vec4} out\n */\nvec4.transformMat4 = function(out, a, m) {\n var x = a[0], y = a[1], z = a[2], w = a[3];\n out[0] = m[0] * x + m[4] * y + m[8] * z + m[12] * w;\n out[1] = m[1] * x + m[5] * y + m[9] * z + m[13] * w;\n out[2] = m[2] * x + m[6] * y + m[10] * z + m[14] * w;\n out[3] = m[3] * x + m[7] * y + m[11] * z + m[15] * w;\n return out;\n};\n\n/**\n * Transforms the vec4 with a quat\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a the vector to transform\n * @param {quat} q quaternion to transform with\n * @returns {vec4} out\n */\nvec4.transformQuat = function(out, a, q) {\n var x = a[0], y = a[1], z = a[2],\n qx = q[0], qy = q[1], qz = q[2], qw = q[3],\n\n // calculate quat * vec\n ix = qw * x + qy * z - qz * y,\n iy = qw * y + qz * x - qx * z,\n iz = qw * z + qx * y - qy * x,\n iw = -qx * x - qy * y - qz * z;\n\n // calculate result * inverse quat\n out[0] = ix * qw + iw * -qx + iy * -qz - iz * -qy;\n out[1] = iy * qw + iw * -qy + iz * -qx - ix * -qz;\n out[2] = iz * qw + iw * -qz + ix * -qy - iy * -qx;\n out[3] = a[3];\n return out;\n};\n\n/**\n * Perform some operation over an array of vec4s.\n *\n * @param {Array} a the array of vectors to iterate over\n * @param {Number} stride Number of elements between the start of each vec4. If 0 assumes tightly packed\n * @param {Number} offset Number of elements to skip at the beginning of the array\n * @param {Number} count Number of vec4s to iterate over. If 0 iterates over entire array\n * @param {Function} fn Function to call for each vector in the array\n * @param {Object} [arg] additional argument to pass to fn\n * @returns {Array} a\n * @function\n */\nvec4.forEach = (function() {\n var vec = vec4.create();\n\n return function(a, stride, offset, count, fn, arg) {\n var i, l;\n if(!stride) {\n stride = 4;\n }\n\n if(!offset) {\n offset = 0;\n }\n \n if(count) {\n l = Math.min((count * stride) + offset, a.length);\n } else {\n l = a.length;\n }\n\n for(i = offset; i < l; i += stride) {\n vec[0] = a[i]; vec[1] = a[i+1]; vec[2] = a[i+2]; vec[3] = a[i+3];\n fn(vec, vec, arg);\n a[i] = vec[0]; a[i+1] = vec[1]; a[i+2] = vec[2]; a[i+3] = vec[3];\n }\n \n return a;\n };\n})();\n\n/**\n * Returns a string representation of a vector\n *\n * @param {vec4} vec vector to represent as a string\n * @returns {String} string representation of the vector\n */\nvec4.str = function (a) {\n return 'vec4(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' + a[3] + ')';\n};\n\nmodule.exports = vec4;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/gl-matrix/src/gl-matrix/vec4.js\n ** module id = 17\n ** module chunks = 0\n **/","/* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV.\n\nPermission is hereby granted, free of charge, to any person obtaining a copy\nof this software and associated documentation files (the \"Software\"), to deal\nin the Software without restriction, including without limitation the rights\nto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\ncopies of the Software, and to permit persons to whom the Software is\nfurnished to do so, subject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in\nall copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\nFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\nAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\nLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\nOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\nTHE SOFTWARE. */\n\nvar glMatrix = require(\"./common.js\");\n\n/**\n * @class 2 Dimensional Vector\n * @name vec2\n */\nvar vec2 = {};\n\n/**\n * Creates a new, empty vec2\n *\n * @returns {vec2} a new 2D vector\n */\nvec2.create = function() {\n var out = new glMatrix.ARRAY_TYPE(2);\n out[0] = 0;\n out[1] = 0;\n return out;\n};\n\n/**\n * Creates a new vec2 initialized with values from an existing vector\n *\n * @param {vec2} a vector to clone\n * @returns {vec2} a new 2D vector\n */\nvec2.clone = function(a) {\n var out = new glMatrix.ARRAY_TYPE(2);\n out[0] = a[0];\n out[1] = a[1];\n return out;\n};\n\n/**\n * Creates a new vec2 initialized with the given values\n *\n * @param {Number} x X component\n * @param {Number} y Y component\n * @returns {vec2} a new 2D vector\n */\nvec2.fromValues = function(x, y) {\n var out = new glMatrix.ARRAY_TYPE(2);\n out[0] = x;\n out[1] = y;\n return out;\n};\n\n/**\n * Copy the values from one vec2 to another\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the source vector\n * @returns {vec2} out\n */\nvec2.copy = function(out, a) {\n out[0] = a[0];\n out[1] = a[1];\n return out;\n};\n\n/**\n * Set the components of a vec2 to the given values\n *\n * @param {vec2} out the receiving vector\n * @param {Number} x X component\n * @param {Number} y Y component\n * @returns {vec2} out\n */\nvec2.set = function(out, x, y) {\n out[0] = x;\n out[1] = y;\n return out;\n};\n\n/**\n * Adds two vec2's\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the first operand\n * @param {vec2} b the second operand\n * @returns {vec2} out\n */\nvec2.add = function(out, a, b) {\n out[0] = a[0] + b[0];\n out[1] = a[1] + b[1];\n return out;\n};\n\n/**\n * Subtracts vector b from vector a\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the first operand\n * @param {vec2} b the second operand\n * @returns {vec2} out\n */\nvec2.subtract = function(out, a, b) {\n out[0] = a[0] - b[0];\n out[1] = a[1] - b[1];\n return out;\n};\n\n/**\n * Alias for {@link vec2.subtract}\n * @function\n */\nvec2.sub = vec2.subtract;\n\n/**\n * Multiplies two vec2's\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the first operand\n * @param {vec2} b the second operand\n * @returns {vec2} out\n */\nvec2.multiply = function(out, a, b) {\n out[0] = a[0] * b[0];\n out[1] = a[1] * b[1];\n return out;\n};\n\n/**\n * Alias for {@link vec2.multiply}\n * @function\n */\nvec2.mul = vec2.multiply;\n\n/**\n * Divides two vec2's\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the first operand\n * @param {vec2} b the second operand\n * @returns {vec2} out\n */\nvec2.divide = function(out, a, b) {\n out[0] = a[0] / b[0];\n out[1] = a[1] / b[1];\n return out;\n};\n\n/**\n * Alias for {@link vec2.divide}\n * @function\n */\nvec2.div = vec2.divide;\n\n/**\n * Returns the minimum of two vec2's\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the first operand\n * @param {vec2} b the second operand\n * @returns {vec2} out\n */\nvec2.min = function(out, a, b) {\n out[0] = Math.min(a[0], b[0]);\n out[1] = Math.min(a[1], b[1]);\n return out;\n};\n\n/**\n * Returns the maximum of two vec2's\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the first operand\n * @param {vec2} b the second operand\n * @returns {vec2} out\n */\nvec2.max = function(out, a, b) {\n out[0] = Math.max(a[0], b[0]);\n out[1] = Math.max(a[1], b[1]);\n return out;\n};\n\n/**\n * Scales a vec2 by a scalar number\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the vector to scale\n * @param {Number} b amount to scale the vector by\n * @returns {vec2} out\n */\nvec2.scale = function(out, a, b) {\n out[0] = a[0] * b;\n out[1] = a[1] * b;\n return out;\n};\n\n/**\n * Adds two vec2's after scaling the second operand by a scalar value\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the first operand\n * @param {vec2} b the second operand\n * @param {Number} scale the amount to scale b by before adding\n * @returns {vec2} out\n */\nvec2.scaleAndAdd = function(out, a, b, scale) {\n out[0] = a[0] + (b[0] * scale);\n out[1] = a[1] + (b[1] * scale);\n return out;\n};\n\n/**\n * Calculates the euclidian distance between two vec2's\n *\n * @param {vec2} a the first operand\n * @param {vec2} b the second operand\n * @returns {Number} distance between a and b\n */\nvec2.distance = function(a, b) {\n var x = b[0] - a[0],\n y = b[1] - a[1];\n return Math.sqrt(x*x + y*y);\n};\n\n/**\n * Alias for {@link vec2.distance}\n * @function\n */\nvec2.dist = vec2.distance;\n\n/**\n * Calculates the squared euclidian distance between two vec2's\n *\n * @param {vec2} a the first operand\n * @param {vec2} b the second operand\n * @returns {Number} squared distance between a and b\n */\nvec2.squaredDistance = function(a, b) {\n var x = b[0] - a[0],\n y = b[1] - a[1];\n return x*x + y*y;\n};\n\n/**\n * Alias for {@link vec2.squaredDistance}\n * @function\n */\nvec2.sqrDist = vec2.squaredDistance;\n\n/**\n * Calculates the length of a vec2\n *\n * @param {vec2} a vector to calculate length of\n * @returns {Number} length of a\n */\nvec2.length = function (a) {\n var x = a[0],\n y = a[1];\n return Math.sqrt(x*x + y*y);\n};\n\n/**\n * Alias for {@link vec2.length}\n * @function\n */\nvec2.len = vec2.length;\n\n/**\n * Calculates the squared length of a vec2\n *\n * @param {vec2} a vector to calculate squared length of\n * @returns {Number} squared length of a\n */\nvec2.squaredLength = function (a) {\n var x = a[0],\n y = a[1];\n return x*x + y*y;\n};\n\n/**\n * Alias for {@link vec2.squaredLength}\n * @function\n */\nvec2.sqrLen = vec2.squaredLength;\n\n/**\n * Negates the components of a vec2\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a vector to negate\n * @returns {vec2} out\n */\nvec2.negate = function(out, a) {\n out[0] = -a[0];\n out[1] = -a[1];\n return out;\n};\n\n/**\n * Returns the inverse of the components of a vec2\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a vector to invert\n * @returns {vec2} out\n */\nvec2.inverse = function(out, a) {\n out[0] = 1.0 / a[0];\n out[1] = 1.0 / a[1];\n return out;\n};\n\n/**\n * Normalize a vec2\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a vector to normalize\n * @returns {vec2} out\n */\nvec2.normalize = function(out, a) {\n var x = a[0],\n y = a[1];\n var len = x*x + y*y;\n if (len > 0) {\n //TODO: evaluate use of glm_invsqrt here?\n len = 1 / Math.sqrt(len);\n out[0] = a[0] * len;\n out[1] = a[1] * len;\n }\n return out;\n};\n\n/**\n * Calculates the dot product of two vec2's\n *\n * @param {vec2} a the first operand\n * @param {vec2} b the second operand\n * @returns {Number} dot product of a and b\n */\nvec2.dot = function (a, b) {\n return a[0] * b[0] + a[1] * b[1];\n};\n\n/**\n * Computes the cross product of two vec2's\n * Note that the cross product must by definition produce a 3D vector\n *\n * @param {vec3} out the receiving vector\n * @param {vec2} a the first operand\n * @param {vec2} b the second operand\n * @returns {vec3} out\n */\nvec2.cross = function(out, a, b) {\n var z = a[0] * b[1] - a[1] * b[0];\n out[0] = out[1] = 0;\n out[2] = z;\n return out;\n};\n\n/**\n * Performs a linear interpolation between two vec2's\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the first operand\n * @param {vec2} b the second operand\n * @param {Number} t interpolation amount between the two inputs\n * @returns {vec2} out\n */\nvec2.lerp = function (out, a, b, t) {\n var ax = a[0],\n ay = a[1];\n out[0] = ax + t * (b[0] - ax);\n out[1] = ay + t * (b[1] - ay);\n return out;\n};\n\n/**\n * Generates a random vector with the given scale\n *\n * @param {vec2} out the receiving vector\n * @param {Number} [scale] Length of the resulting vector. If ommitted, a unit vector will be returned\n * @returns {vec2} out\n */\nvec2.random = function (out, scale) {\n scale = scale || 1.0;\n var r = glMatrix.RANDOM() * 2.0 * Math.PI;\n out[0] = Math.cos(r) * scale;\n out[1] = Math.sin(r) * scale;\n return out;\n};\n\n/**\n * Transforms the vec2 with a mat2\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the vector to transform\n * @param {mat2} m matrix to transform with\n * @returns {vec2} out\n */\nvec2.transformMat2 = function(out, a, m) {\n var x = a[0],\n y = a[1];\n out[0] = m[0] * x + m[2] * y;\n out[1] = m[1] * x + m[3] * y;\n return out;\n};\n\n/**\n * Transforms the vec2 with a mat2d\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the vector to transform\n * @param {mat2d} m matrix to transform with\n * @returns {vec2} out\n */\nvec2.transformMat2d = function(out, a, m) {\n var x = a[0],\n y = a[1];\n out[0] = m[0] * x + m[2] * y + m[4];\n out[1] = m[1] * x + m[3] * y + m[5];\n return out;\n};\n\n/**\n * Transforms the vec2 with a mat3\n * 3rd vector component is implicitly '1'\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the vector to transform\n * @param {mat3} m matrix to transform with\n * @returns {vec2} out\n */\nvec2.transformMat3 = function(out, a, m) {\n var x = a[0],\n y = a[1];\n out[0] = m[0] * x + m[3] * y + m[6];\n out[1] = m[1] * x + m[4] * y + m[7];\n return out;\n};\n\n/**\n * Transforms the vec2 with a mat4\n * 3rd vector component is implicitly '0'\n * 4th vector component is implicitly '1'\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the vector to transform\n * @param {mat4} m matrix to transform with\n * @returns {vec2} out\n */\nvec2.transformMat4 = function(out, a, m) {\n var x = a[0], \n y = a[1];\n out[0] = m[0] * x + m[4] * y + m[12];\n out[1] = m[1] * x + m[5] * y + m[13];\n return out;\n};\n\n/**\n * Perform some operation over an array of vec2s.\n *\n * @param {Array} a the array of vectors to iterate over\n * @param {Number} stride Number of elements between the start of each vec2. If 0 assumes tightly packed\n * @param {Number} offset Number of elements to skip at the beginning of the array\n * @param {Number} count Number of vec2s to iterate over. If 0 iterates over entire array\n * @param {Function} fn Function to call for each vector in the array\n * @param {Object} [arg] additional argument to pass to fn\n * @returns {Array} a\n * @function\n */\nvec2.forEach = (function() {\n var vec = vec2.create();\n\n return function(a, stride, offset, count, fn, arg) {\n var i, l;\n if(!stride) {\n stride = 2;\n }\n\n if(!offset) {\n offset = 0;\n }\n \n if(count) {\n l = Math.min((count * stride) + offset, a.length);\n } else {\n l = a.length;\n }\n\n for(i = offset; i < l; i += stride) {\n vec[0] = a[i]; vec[1] = a[i+1];\n fn(vec, vec, arg);\n a[i] = vec[0]; a[i+1] = vec[1];\n }\n \n return a;\n };\n})();\n\n/**\n * Returns a string representation of a vector\n *\n * @param {vec2} vec vector to represent as a string\n * @returns {String} string representation of the vector\n */\nvec2.str = function (a) {\n return 'vec2(' + a[0] + ', ' + a[1] + ')';\n};\n\nmodule.exports = vec2;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/gl-matrix/src/gl-matrix/vec2.js\n ** module id = 18\n ** module chunks = 0\n **/","export default {\n init: function(arr, val) {\n var l = arr.length;\n while (l--) {\n arr[l] = val;\n }\n },\n\n /**\n * Shuffles the content of an array\n * @return {Array} the array itself shuffled\n */\n shuffle: function(arr) {\n var i = arr.length - 1, j, x;\n for (i; i >= 0; i--) {\n j = Math.floor(Math.random() * i);\n x = arr[i];\n arr[i] = arr[j];\n arr[j] = x;\n }\n return arr;\n },\n\n toPointList: function(arr) {\n var i, j, row = [], rows = [];\n for ( i = 0; i < arr.length; i++) {\n row = [];\n for ( j = 0; j < arr[i].length; j++) {\n row[j] = arr[i][j];\n }\n rows[i] = \"[\" + row.join(\",\") + \"]\";\n }\n return \"[\" + rows.join(\",\\r\\n\") + \"]\";\n },\n\n /**\n * returns the elements which's score is bigger than the threshold\n * @return {Array} the reduced array\n */\n threshold: function(arr, threshold, scoreFunc) {\n var i, queue = [];\n for ( i = 0; i < arr.length; i++) {\n if (scoreFunc.apply(arr, [arr[i]]) >= threshold) {\n queue.push(arr[i]);\n }\n }\n return queue;\n },\n\n maxIndex: function(arr) {\n var i, max = 0;\n for ( i = 0; i < arr.length; i++) {\n if (arr[i] > arr[max]) {\n max = i;\n }\n }\n return max;\n },\n\n max: function(arr) {\n var i, max = 0;\n for ( i = 0; i < arr.length; i++) {\n if (arr[i] > max) {\n max = arr[i];\n }\n }\n return max;\n },\n\n sum: function(arr) {\n var length = arr.length,\n sum = 0;\n\n while (length--) {\n sum += arr[length];\n }\n return sum;\n }\n};\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/array_helper.js\n **/","import ImageWrapper from './image_wrapper';\nimport CVUtils from './cv_utils';\nimport Rasterizer from './rasterizer';\nimport Tracer from './tracer';\nimport skeletonizer from './skeletonizer';\nimport ArrayHelper from './array_helper';\nimport ImageDebug from './image_debug';\nimport glMatrix from 'gl-matrix';\n\nvar _config,\n _currentImageWrapper,\n _skelImageWrapper,\n _subImageWrapper,\n _labelImageWrapper,\n _patchGrid,\n _patchLabelGrid,\n _imageToPatchGrid,\n _binaryImageWrapper,\n _patchSize,\n _canvasContainer = {\n ctx: {\n binary: null\n },\n dom: {\n binary: null\n }\n },\n _numPatches = {x: 0, y: 0},\n _inputImageWrapper,\n _skeletonizer,\n vec2 = glMatrix.vec2,\n mat2 = glMatrix.mat2,\n self = (typeof window !== 'undefined') ? window : self;\n\nfunction initBuffers() {\n var skeletonImageData;\n\n if (_config.halfSample) {\n _currentImageWrapper = new ImageWrapper({\n x: _inputImageWrapper.size.x / 2 | 0,\n y: _inputImageWrapper.size.y / 2 | 0\n });\n } else {\n _currentImageWrapper = _inputImageWrapper;\n }\n\n _patchSize = CVUtils.calculatePatchSize(_config.patchSize, _currentImageWrapper.size);\n\n _numPatches.x = _currentImageWrapper.size.x / _patchSize.x | 0;\n _numPatches.y = _currentImageWrapper.size.y / _patchSize.y | 0;\n\n _binaryImageWrapper = new ImageWrapper(_currentImageWrapper.size, undefined, Uint8Array, false);\n\n _labelImageWrapper = new ImageWrapper(_patchSize, undefined, Array, true);\n\n skeletonImageData = new ArrayBuffer(64 * 1024);\n _subImageWrapper = new ImageWrapper(_patchSize,\n new Uint8Array(skeletonImageData, 0, _patchSize.x * _patchSize.y));\n _skelImageWrapper = new ImageWrapper(_patchSize,\n new Uint8Array(skeletonImageData, _patchSize.x * _patchSize.y * 3, _patchSize.x * _patchSize.y),\n undefined, true);\n _skeletonizer = skeletonizer(self, {\n size: _patchSize.x\n }, skeletonImageData);\n\n _imageToPatchGrid = new ImageWrapper({\n x: (_currentImageWrapper.size.x / _subImageWrapper.size.x) | 0,\n y: (_currentImageWrapper.size.y / _subImageWrapper.size.y) | 0\n }, undefined, Array, true);\n _patchGrid = new ImageWrapper(_imageToPatchGrid.size, undefined, undefined, true);\n _patchLabelGrid = new ImageWrapper(_imageToPatchGrid.size, undefined, Int32Array, true);\n}\n\nfunction initCanvas() {\n if (_config.useWorker || typeof document === 'undefined') {\n return;\n }\n _canvasContainer.dom.binary = document.createElement(\"canvas\");\n _canvasContainer.dom.binary.className = \"binaryBuffer\";\n if (_config.showCanvas === true) {\n document.querySelector(\"#debug\").appendChild(_canvasContainer.dom.binary);\n }\n _canvasContainer.ctx.binary = _canvasContainer.dom.binary.getContext(\"2d\");\n _canvasContainer.dom.binary.width = _binaryImageWrapper.size.x;\n _canvasContainer.dom.binary.height = _binaryImageWrapper.size.y;\n}\n\n/**\n * Creates a bounding box which encloses all the given patches\n * @returns {Array} The minimal bounding box\n */\nfunction boxFromPatches(patches) {\n var overAvg,\n i,\n j,\n patch,\n transMat,\n minx =\n _binaryImageWrapper.size.x,\n miny = _binaryImageWrapper.size.y,\n maxx = -_binaryImageWrapper.size.x,\n maxy = -_binaryImageWrapper.size.y,\n box,\n scale;\n\n // draw all patches which are to be taken into consideration\n overAvg = 0;\n for ( i = 0; i < patches.length; i++) {\n patch = patches[i];\n overAvg += patch.rad;\n if (_config.showPatches) {\n ImageDebug.drawRect(patch.pos, _subImageWrapper.size, _canvasContainer.ctx.binary, {color: \"red\"});\n }\n }\n\n overAvg /= patches.length;\n overAvg = (overAvg * 180 / Math.PI + 90) % 180 - 90;\n if (overAvg < 0) {\n overAvg += 180;\n }\n\n overAvg = (180 - overAvg) * Math.PI / 180;\n transMat = mat2.clone([Math.cos(overAvg), Math.sin(overAvg), -Math.sin(overAvg), Math.cos(overAvg)]);\n\n // iterate over patches and rotate by angle\n for ( i = 0; i < patches.length; i++) {\n patch = patches[i];\n for ( j = 0; j < 4; j++) {\n vec2.transformMat2(patch.box[j], patch.box[j], transMat);\n }\n\n if (_config.boxFromPatches.showTransformed) {\n ImageDebug.drawPath(patch.box, {x: 0, y: 1}, _canvasContainer.ctx.binary, {color: '#99ff00', lineWidth: 2});\n }\n }\n\n // find bounding box\n for ( i = 0; i < patches.length; i++) {\n patch = patches[i];\n for ( j = 0; j < 4; j++) {\n if (patch.box[j][0] < minx) {\n minx = patch.box[j][0];\n }\n if (patch.box[j][0] > maxx) {\n maxx = patch.box[j][0];\n }\n if (patch.box[j][1] < miny) {\n miny = patch.box[j][1];\n }\n if (patch.box[j][1] > maxy) {\n maxy = patch.box[j][1];\n }\n }\n }\n\n box = [[minx, miny], [maxx, miny], [maxx, maxy], [minx, maxy]];\n\n if (_config.boxFromPatches.showTransformedBox) {\n ImageDebug.drawPath(box, {x: 0, y: 1}, _canvasContainer.ctx.binary, {color: '#ff0000', lineWidth: 2});\n }\n\n scale = _config.halfSample ? 2 : 1;\n // reverse rotation;\n transMat = mat2.invert(transMat, transMat);\n for ( j = 0; j < 4; j++) {\n vec2.transformMat2(box[j], box[j], transMat);\n }\n\n if (_config.boxFromPatches.showBB) {\n ImageDebug.drawPath(box, {x: 0, y: 1}, _canvasContainer.ctx.binary, {color: '#ff0000', lineWidth: 2});\n }\n\n for ( j = 0; j < 4; j++) {\n vec2.scale(box[j], box[j], scale);\n }\n\n return box;\n}\n\n/**\n * Creates a binary image of the current image\n */\nfunction binarizeImage() {\n CVUtils.otsuThreshold(_currentImageWrapper, _binaryImageWrapper);\n _binaryImageWrapper.zeroBorder();\n if (_config.showCanvas) {\n _binaryImageWrapper.show(_canvasContainer.dom.binary, 255);\n }\n}\n\n/**\n * Iterate over the entire image\n * extract patches\n */\nfunction findPatches() {\n var i,\n j,\n x,\n y,\n moments,\n patchesFound = [],\n rasterizer,\n rasterResult,\n patch;\n for (i = 0; i < _numPatches.x; i++) {\n for (j = 0; j < _numPatches.y; j++) {\n x = _subImageWrapper.size.x * i;\n y = _subImageWrapper.size.y * j;\n\n // seperate parts\n skeletonize(x, y);\n\n // Rasterize, find individual bars\n _skelImageWrapper.zeroBorder();\n ArrayHelper.init(_labelImageWrapper.data, 0);\n rasterizer = Rasterizer.create(_skelImageWrapper, _labelImageWrapper);\n rasterResult = rasterizer.rasterize(0);\n\n if (_config.showLabels) {\n _labelImageWrapper.overlay(_canvasContainer.dom.binary, Math.floor(360 / rasterResult.count),\n {x: x, y: y});\n }\n\n // calculate moments from the skeletonized patch\n moments = _labelImageWrapper.moments(rasterResult.count);\n\n // extract eligible patches\n patchesFound = patchesFound.concat(describePatch(moments, [i, j], x, y));\n }\n }\n\n if (_config.showFoundPatches) {\n for ( i = 0; i < patchesFound.length; i++) {\n patch = patchesFound[i];\n ImageDebug.drawRect(patch.pos, _subImageWrapper.size, _canvasContainer.ctx.binary,\n {color: \"#99ff00\", lineWidth: 2});\n }\n }\n\n return patchesFound;\n}\n\n/**\n * Finds those connected areas which contain at least 6 patches\n * and returns them ordered DESC by the number of contained patches\n * @param {Number} maxLabel\n */\nfunction findBiggestConnectedAreas(maxLabel){\n var i,\n sum,\n labelHist = [],\n topLabels = [];\n\n for ( i = 0; i < maxLabel; i++) {\n labelHist.push(0);\n }\n sum = _patchLabelGrid.data.length;\n while (sum--) {\n if (_patchLabelGrid.data[sum] > 0) {\n labelHist[_patchLabelGrid.data[sum] - 1]++;\n }\n }\n\n labelHist = labelHist.map(function(val, idx) {\n return {\n val: val,\n label: idx + 1\n };\n });\n\n labelHist.sort(function(a, b) {\n return b.val - a.val;\n });\n\n // extract top areas with at least 6 patches present\n topLabels = labelHist.filter(function(el) {\n return el.val >= 5;\n });\n\n return topLabels;\n}\n\n/**\n *\n */\nfunction findBoxes(topLabels, maxLabel) {\n var i,\n j,\n sum,\n patches = [],\n patch,\n box,\n boxes = [],\n hsv = [0, 1, 1],\n rgb = [0, 0, 0];\n\n for ( i = 0; i < topLabels.length; i++) {\n sum = _patchLabelGrid.data.length;\n patches.length = 0;\n while (sum--) {\n if (_patchLabelGrid.data[sum] === topLabels[i].label) {\n patch = _imageToPatchGrid.data[sum];\n patches.push(patch);\n }\n }\n box = boxFromPatches(patches);\n if (box) {\n boxes.push(box);\n\n // draw patch-labels if requested\n if (_config.showRemainingPatchLabels) {\n for ( j = 0; j < patches.length; j++) {\n patch = patches[j];\n hsv[0] = (topLabels[i].label / (maxLabel + 1)) * 360;\n CVUtils.hsv2rgb(hsv, rgb);\n ImageDebug.drawRect(patch.pos, _subImageWrapper.size, _canvasContainer.ctx.binary,\n {color: \"rgb(\" + rgb.join(\",\") + \")\", lineWidth: 2});\n }\n }\n }\n }\n return boxes;\n}\n\n/**\n * Find similar moments (via cluster)\n * @param {Object} moments\n */\nfunction similarMoments(moments) {\n var clusters = CVUtils.cluster(moments, 0.90);\n var topCluster = CVUtils.topGeneric(clusters, 1, function(e) {\n return e.getPoints().length;\n });\n var points = [], result = [];\n if (topCluster.length === 1) {\n points = topCluster[0].item.getPoints();\n for (var i = 0; i < points.length; i++) {\n result.push(points[i].point);\n }\n }\n return result;\n}\n\nfunction skeletonize(x, y) {\n _binaryImageWrapper.subImageAsCopy(_subImageWrapper, CVUtils.imageRef(x, y));\n _skeletonizer.skeletonize();\n\n // Show skeleton if requested\n if (_config.showSkeleton) {\n _skelImageWrapper.overlay(_canvasContainer.dom.binary, 360, CVUtils.imageRef(x, y));\n }\n}\n\n/**\n * Extracts and describes those patches which seem to contain a barcode pattern\n * @param {Array} moments\n * @param {Object} patchPos,\n * @param {Number} x\n * @param {Number} y\n * @returns {Array} list of patches\n */\nfunction describePatch(moments, patchPos, x, y) {\n var k,\n avg,\n eligibleMoments = [],\n matchingMoments,\n patch,\n patchesFound = [],\n minComponentWeight = Math.ceil(_patchSize.x / 3);\n\n if (moments.length >= 2) {\n // only collect moments which's area covers at least minComponentWeight pixels.\n for ( k = 0; k < moments.length; k++) {\n if (moments[k].m00 > minComponentWeight) {\n eligibleMoments.push(moments[k]);\n }\n }\n\n // if at least 2 moments are found which have at least minComponentWeights covered\n if (eligibleMoments.length >= 2) {\n matchingMoments = similarMoments(eligibleMoments);\n avg = 0;\n // determine the similarity of the moments\n for ( k = 0; k < matchingMoments.length; k++) {\n avg += matchingMoments[k].rad;\n }\n\n // Only two of the moments are allowed not to fit into the equation\n // add the patch to the set\n if (matchingMoments.length > 1\n && matchingMoments.length >= (eligibleMoments.length / 4) * 3\n && matchingMoments.length > moments.length / 4) {\n avg /= matchingMoments.length;\n patch = {\n index: patchPos[1] * _numPatches.x + patchPos[0],\n pos: {\n x: x,\n y: y\n },\n box: [\n vec2.clone([x, y]),\n vec2.clone([x + _subImageWrapper.size.x, y]),\n vec2.clone([x + _subImageWrapper.size.x, y + _subImageWrapper.size.y]),\n vec2.clone([x, y + _subImageWrapper.size.y])\n ],\n moments: matchingMoments,\n rad: avg,\n vec: vec2.clone([Math.cos(avg), Math.sin(avg)])\n };\n patchesFound.push(patch);\n }\n }\n }\n return patchesFound;\n}\n\n/**\n * finds patches which are connected and share the same orientation\n * @param {Object} patchesFound\n */\nfunction rasterizeAngularSimilarity(patchesFound) {\n var label = 0,\n threshold = 0.95,\n currIdx = 0,\n j,\n patch,\n hsv = [0, 1, 1],\n rgb = [0, 0, 0];\n\n function notYetProcessed() {\n var i;\n for ( i = 0; i < _patchLabelGrid.data.length; i++) {\n if (_patchLabelGrid.data[i] === 0 && _patchGrid.data[i] === 1) {\n return i;\n }\n }\n return _patchLabelGrid.length;\n }\n\n function trace(currentIdx) {\n var x,\n y,\n currentPatch,\n patch,\n idx,\n dir,\n current = {\n x: currentIdx % _patchLabelGrid.size.x,\n y: (currentIdx / _patchLabelGrid.size.x) | 0\n },\n similarity;\n\n if (currentIdx < _patchLabelGrid.data.length) {\n currentPatch = _imageToPatchGrid.data[currentIdx];\n // assign label\n _patchLabelGrid.data[currentIdx] = label;\n for ( dir = 0; dir < Tracer.searchDirections.length; dir++) {\n y = current.y + Tracer.searchDirections[dir][0];\n x = current.x + Tracer.searchDirections[dir][1];\n idx = y * _patchLabelGrid.size.x + x;\n\n // continue if patch empty\n if (_patchGrid.data[idx] === 0) {\n _patchLabelGrid.data[idx] = Number.MAX_VALUE;\n continue;\n }\n\n patch = _imageToPatchGrid.data[idx];\n if (_patchLabelGrid.data[idx] === 0) {\n similarity = Math.abs(vec2.dot(patch.vec, currentPatch.vec));\n if (similarity > threshold) {\n trace(idx);\n }\n }\n }\n }\n }\n\n // prepare for finding the right patches\n ArrayHelper.init(_patchGrid.data, 0);\n ArrayHelper.init(_patchLabelGrid.data, 0);\n ArrayHelper.init(_imageToPatchGrid.data, null);\n\n for ( j = 0; j < patchesFound.length; j++) {\n patch = patchesFound[j];\n _imageToPatchGrid.data[patch.index] = patch;\n _patchGrid.data[patch.index] = 1;\n }\n\n // rasterize the patches found to determine area\n _patchGrid.zeroBorder();\n\n while (( currIdx = notYetProcessed()) < _patchLabelGrid.data.length) {\n label++;\n trace(currIdx);\n }\n\n // draw patch-labels if requested\n if (_config.showPatchLabels) {\n for ( j = 0; j < _patchLabelGrid.data.length; j++) {\n if (_patchLabelGrid.data[j] > 0 && _patchLabelGrid.data[j] <= label) {\n patch = _imageToPatchGrid.data[j];\n hsv[0] = (_patchLabelGrid.data[j] / (label + 1)) * 360;\n CVUtils.hsv2rgb(hsv, rgb);\n ImageDebug.drawRect(patch.pos, _subImageWrapper.size, _canvasContainer.ctx.binary,\n {color: \"rgb(\" + rgb.join(\",\") + \")\", lineWidth: 2});\n }\n }\n }\n\n return label;\n}\n\nexport default {\n init: function(inputImageWrapper, config) {\n _config = config;\n _inputImageWrapper = inputImageWrapper;\n\n initBuffers();\n initCanvas();\n },\n\n locate: function() {\n var patchesFound,\n topLabels,\n boxes;\n\n if (_config.halfSample) {\n CVUtils.halfSample(_inputImageWrapper, _currentImageWrapper);\n }\n\n binarizeImage();\n patchesFound = findPatches();\n // return unless 5% or more patches are found\n if (patchesFound.length < _numPatches.x * _numPatches.y * 0.05) {\n return null;\n }\n\n // rasterrize area by comparing angular similarity;\n var maxLabel = rasterizeAngularSimilarity(patchesFound);\n if (maxLabel < 1) {\n return null;\n }\n\n // search for area with the most patches (biggest connected area)\n topLabels = findBiggestConnectedAreas(maxLabel);\n if (topLabels.length === 0) {\n return null;\n }\n\n boxes = findBoxes(topLabels, maxLabel);\n return boxes;\n },\n\n checkImageConstraints: function(inputStream, config) {\n var patchSize,\n width = inputStream.getWidth(),\n height = inputStream.getHeight(),\n halfSample = config.halfSample ? 0.5 : 1,\n size,\n area;\n\n // calculate width and height based on area\n if (inputStream.getConfig().area) {\n area = CVUtils.computeImageArea(width, height, inputStream.getConfig().area);\n inputStream.setTopRight({x: area.sx, y: area.sy});\n inputStream.setCanvasSize({x: width, y: height});\n width = area.sw;\n height = area.sh;\n }\n\n size = {\n x: Math.floor(width * halfSample),\n y: Math.floor(height * halfSample)\n };\n\n patchSize = CVUtils.calculatePatchSize(config.patchSize, size);\n console.log(\"Patch-Size: \" + JSON.stringify(patchSize));\n\n inputStream.setWidth(Math.floor(Math.floor(size.x / patchSize.x) * (1 / halfSample) * patchSize.x));\n inputStream.setHeight(Math.floor(Math.floor(size.y / patchSize.y) * (1 / halfSample) * patchSize.y));\n\n if ((inputStream.getWidth() % patchSize.x) === 0 && (inputStream.getHeight() % patchSize.y) === 0) {\n return true;\n }\n\n throw new Error(\"Image dimensions do not comply with the current settings: Width (\" +\n width + \" )and height (\" + height +\n \") must a multiple of \" + patchSize.x);\n }\n};\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/barcode_locator.js\n **/","import Tracer from './tracer';\n\n/**\n * http://www.codeproject.com/Tips/407172/Connected-Component-Labeling-and-Vectorization\n */\nvar Rasterizer = {\n createContour2D : function() {\n return {\n dir : null,\n index : null,\n firstVertex : null,\n insideContours : null,\n nextpeer : null,\n prevpeer : null\n };\n },\n CONTOUR_DIR : {\n CW_DIR : 0,\n CCW_DIR : 1,\n UNKNOWN_DIR : 2\n },\n DIR : {\n OUTSIDE_EDGE : -32767,\n INSIDE_EDGE : -32766\n },\n create : function(imageWrapper, labelWrapper) {\n var imageData = imageWrapper.data,\n labelData = labelWrapper.data,\n width = imageWrapper.size.x,\n height = imageWrapper.size.y,\n tracer = Tracer.create(imageWrapper, labelWrapper);\n\n return {\n rasterize : function(depthlabel) {\n var color,\n bc,\n lc,\n labelindex,\n cx,\n cy,\n colorMap = [],\n vertex,\n p,\n cc,\n sc,\n pos,\n connectedCount = 0,\n i;\n\n for ( i = 0; i < 400; i++) {\n colorMap[i] = 0;\n }\n\n colorMap[0] = imageData[0];\n cc = null;\n for ( cy = 1; cy < height - 1; cy++) {\n labelindex = 0;\n bc = colorMap[0];\n for ( cx = 1; cx < width - 1; cx++) {\n pos = cy * width + cx;\n if (labelData[pos] === 0) {\n color = imageData[pos];\n if (color !== bc) {\n if (labelindex === 0) {\n lc = connectedCount + 1;\n colorMap[lc] = color;\n bc = color;\n vertex = tracer.contourTracing(cy, cx, lc, color, Rasterizer.DIR.OUTSIDE_EDGE);\n if (vertex !== null) {\n connectedCount++;\n labelindex = lc;\n p = Rasterizer.createContour2D();\n p.dir = Rasterizer.CONTOUR_DIR.CW_DIR;\n p.index = labelindex;\n p.firstVertex = vertex;\n p.nextpeer = cc;\n p.insideContours = null;\n if (cc !== null) {\n cc.prevpeer = p;\n }\n cc = p;\n }\n } else {\n vertex = tracer.contourTracing(cy, cx, Rasterizer.DIR.INSIDE_EDGE, color, labelindex);\n if (vertex !== null) {\n p = Rasterizer.createContour2D();\n p.firstVertex = vertex;\n p.insideContours = null;\n if (depthlabel === 0) {\n p.dir = Rasterizer.CONTOUR_DIR.CCW_DIR;\n } else {\n p.dir = Rasterizer.CONTOUR_DIR.CW_DIR;\n }\n p.index = depthlabel;\n sc = cc;\n while ((sc !== null) && sc.index !== labelindex) {\n sc = sc.nextpeer;\n }\n if (sc !== null) {\n p.nextpeer = sc.insideContours;\n if (sc.insideContours !== null) {\n sc.insideContours.prevpeer = p;\n }\n sc.insideContours = p;\n }\n }\n }\n } else {\n labelData[pos] = labelindex;\n }\n } else if (labelData[pos] === Rasterizer.DIR.OUTSIDE_EDGE || labelData[pos] === Rasterizer.DIR.INSIDE_EDGE) {\n labelindex = 0;\n if (labelData[pos] === Rasterizer.DIR.INSIDE_EDGE) {\n bc = imageData[pos];\n } else {\n bc = colorMap[0];\n }\n } else {\n labelindex = labelData[pos];\n bc = colorMap[labelindex];\n }\n }\n }\n sc = cc;\n while (sc !== null) {\n sc.index = depthlabel;\n sc = sc.nextpeer;\n }\n return {\n cc : cc,\n count : connectedCount\n };\n },\n debug: {\n drawContour : function(canvas, firstContour) {\n var ctx = canvas.getContext(\"2d\"),\n pq = firstContour,\n iq,\n q,\n p;\n\n ctx.strokeStyle = \"red\";\n ctx.fillStyle = \"red\";\n ctx.lineWidth = 1;\n\n if (pq !== null) {\n iq = pq.insideContours;\n } else {\n iq = null;\n }\n\n while (pq !== null) {\n if (iq !== null) {\n q = iq;\n iq = iq.nextpeer;\n } else {\n q = pq;\n pq = pq.nextpeer;\n if (pq !== null) {\n iq = pq.insideContours;\n } else {\n iq = null;\n }\n }\n\n switch(q.dir) {\n case Rasterizer.CONTOUR_DIR.CW_DIR:\n ctx.strokeStyle = \"red\";\n break;\n case Rasterizer.CONTOUR_DIR.CCW_DIR:\n ctx.strokeStyle = \"blue\";\n break;\n case Rasterizer.CONTOUR_DIR.UNKNOWN_DIR:\n ctx.strokeStyle = \"green\";\n break;\n }\n\n p = q.firstVertex;\n ctx.beginPath();\n ctx.moveTo(p.x, p.y);\n do {\n p = p.next;\n ctx.lineTo(p.x, p.y);\n } while(p !== q.firstVertex);\n ctx.stroke();\n }\n }\n }\n };\n }\n};\n\nexport default Rasterizer;\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/rasterizer.js\n **/","/**\n * http://www.codeproject.com/Tips/407172/Connected-Component-Labeling-and-Vectorization\n */\nvar Tracer = {\n searchDirections : [[0, 1], [1, 1], [1, 0], [1, -1], [0, -1], [-1, -1], [-1, 0], [-1, 1]],\n create : function(imageWrapper, labelWrapper) {\n var imageData = imageWrapper.data,\n labelData = labelWrapper.data,\n searchDirections = this.searchDirections,\n width = imageWrapper.size.x,\n pos;\n\n function trace(current, color, label, edgelabel) {\n var i,\n y,\n x;\n\n for ( i = 0; i < 7; i++) {\n y = current.cy + searchDirections[current.dir][0];\n x = current.cx + searchDirections[current.dir][1];\n pos = y * width + x;\n if ((imageData[pos] === color) && ((labelData[pos] === 0) || (labelData[pos] === label))) {\n labelData[pos] = label;\n current.cy = y;\n current.cx = x;\n return true;\n } else {\n if (labelData[pos] === 0) {\n labelData[pos] = edgelabel;\n }\n current.dir = (current.dir + 1) % 8;\n }\n }\n return false;\n }\n\n function vertex2D(x, y, dir) {\n return {\n dir : dir,\n x : x,\n y : y,\n next : null,\n prev : null\n };\n }\n\n function contourTracing(sy, sx, label, color, edgelabel) {\n var Fv = null,\n Cv,\n P,\n ldir,\n current = {\n cx : sx,\n cy : sy,\n dir : 0\n };\n\n if (trace(current, color, label, edgelabel)) {\n Fv = vertex2D(sx, sy, current.dir);\n Cv = Fv;\n ldir = current.dir;\n P = vertex2D(current.cx, current.cy, 0);\n P.prev = Cv;\n Cv.next = P;\n P.next = null;\n Cv = P;\n do {\n current.dir = (current.dir + 6) % 8;\n trace(current, color, label, edgelabel);\n if (ldir != current.dir) {\n Cv.dir = current.dir;\n P = vertex2D(current.cx, current.cy, 0);\n P.prev = Cv;\n Cv.next = P;\n P.next = null;\n Cv = P;\n } else {\n Cv.dir = ldir;\n Cv.x = current.cx;\n Cv.y = current.cy;\n }\n ldir = current.dir;\n } while(current.cx != sx || current.cy != sy);\n Fv.prev = Cv.prev;\n Cv.prev.next = Fv;\n }\n return Fv;\n }\n\n return {\n trace : function(current, color, label, edgelabel) {\n return trace(current, color, label, edgelabel);\n },\n contourTracing : function(sy, sx, label, color, edgelabel) {\n return contourTracing(sy, sx, label, color, edgelabel);\n }\n };\n }\n};\n\nexport default (Tracer);\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/tracer.js\n **/","/* @preserve ASM BEGIN */\nfunction Skeletonizer(stdlib, foreign, buffer) {\n \"use asm\";\n\n var images = new stdlib.Uint8Array(buffer),\n size = foreign.size | 0,\n imul = stdlib.Math.imul;\n\n function erode(inImagePtr, outImagePtr) {\n inImagePtr = inImagePtr | 0;\n outImagePtr = outImagePtr | 0;\n\n var v = 0,\n u = 0,\n sum = 0,\n yStart1 = 0,\n yStart2 = 0,\n xStart1 = 0,\n xStart2 = 0,\n offset = 0;\n\n for ( v = 1; (v | 0) < ((size - 1) | 0); v = (v + 1) | 0) {\n offset = (offset + size) | 0;\n for ( u = 1; (u | 0) < ((size - 1) | 0); u = (u + 1) | 0) {\n yStart1 = (offset - size) | 0;\n yStart2 = (offset + size) | 0;\n xStart1 = (u - 1) | 0;\n xStart2 = (u + 1) | 0;\n sum = ((images[(inImagePtr + yStart1 + xStart1) | 0] | 0) + (images[(inImagePtr + yStart1 + xStart2) | 0] | 0) + (images[(inImagePtr + offset + u) | 0] | 0) + (images[(inImagePtr + yStart2 + xStart1) | 0] | 0) + (images[(inImagePtr + yStart2 + xStart2) | 0] | 0)) | 0;\n if ((sum | 0) == (5 | 0)) {\n images[(outImagePtr + offset + u) | 0] = 1;\n } else {\n images[(outImagePtr + offset + u) | 0] = 0;\n }\n }\n }\n return;\n }\n\n function subtract(aImagePtr, bImagePtr, outImagePtr) {\n aImagePtr = aImagePtr | 0;\n bImagePtr = bImagePtr | 0;\n outImagePtr = outImagePtr | 0;\n\n var length = 0;\n\n length = imul(size, size) | 0;\n\n while ((length | 0) > 0) {\n length = (length - 1) | 0;\n images[(outImagePtr + length) | 0] = ((images[(aImagePtr + length) | 0] | 0) - (images[(bImagePtr + length) | 0] | 0)) | 0;\n }\n }\n\n function bitwiseOr(aImagePtr, bImagePtr, outImagePtr) {\n aImagePtr = aImagePtr | 0;\n bImagePtr = bImagePtr | 0;\n outImagePtr = outImagePtr | 0;\n\n var length = 0;\n\n length = imul(size, size) | 0;\n\n while ((length | 0) > 0) {\n length = (length - 1) | 0;\n images[(outImagePtr + length) | 0] = ((images[(aImagePtr + length) | 0] | 0) | (images[(bImagePtr + length) | 0] | 0)) | 0;\n }\n }\n\n function countNonZero(imagePtr) {\n imagePtr = imagePtr | 0;\n\n var sum = 0,\n length = 0;\n\n length = imul(size, size) | 0;\n\n while ((length | 0) > 0) {\n length = (length - 1) | 0;\n sum = ((sum | 0) + (images[(imagePtr + length) | 0] | 0)) | 0;\n }\n\n return (sum | 0);\n }\n\n function init(imagePtr, value) {\n imagePtr = imagePtr | 0;\n value = value | 0;\n\n var length = 0;\n\n length = imul(size, size) | 0;\n\n while ((length | 0) > 0) {\n length = (length - 1) | 0;\n images[(imagePtr + length) | 0] = value;\n }\n }\n\n function dilate(inImagePtr, outImagePtr) {\n inImagePtr = inImagePtr | 0;\n outImagePtr = outImagePtr | 0;\n\n var v = 0,\n u = 0,\n sum = 0,\n yStart1 = 0,\n yStart2 = 0,\n xStart1 = 0,\n xStart2 = 0,\n offset = 0;\n\n for ( v = 1; (v | 0) < ((size - 1) | 0); v = (v + 1) | 0) {\n offset = (offset + size) | 0;\n for ( u = 1; (u | 0) < ((size - 1) | 0); u = (u + 1) | 0) {\n yStart1 = (offset - size) | 0;\n yStart2 = (offset + size) | 0;\n xStart1 = (u - 1) | 0;\n xStart2 = (u + 1) | 0;\n sum = ((images[(inImagePtr + yStart1 + xStart1) | 0] | 0) + (images[(inImagePtr + yStart1 + xStart2) | 0] | 0) + (images[(inImagePtr + offset + u) | 0] | 0) + (images[(inImagePtr + yStart2 + xStart1) | 0] | 0) + (images[(inImagePtr + yStart2 + xStart2) | 0] | 0)) | 0;\n if ((sum | 0) > (0 | 0)) {\n images[(outImagePtr + offset + u) | 0] = 1;\n } else {\n images[(outImagePtr + offset + u) | 0] = 0;\n }\n }\n }\n return;\n }\n\n function memcpy(srcImagePtr, dstImagePtr) {\n srcImagePtr = srcImagePtr | 0;\n dstImagePtr = dstImagePtr | 0;\n\n var length = 0;\n\n length = imul(size, size) | 0;\n\n while ((length | 0) > 0) {\n length = (length - 1) | 0;\n images[(dstImagePtr + length) | 0] = (images[(srcImagePtr + length) | 0] | 0);\n }\n }\n\n function zeroBorder(imagePtr) {\n imagePtr = imagePtr | 0;\n\n var x = 0,\n y = 0;\n\n for ( x = 0; (x | 0) < ((size - 1) | 0); x = (x + 1) | 0) {\n images[(imagePtr + x) | 0] = 0;\n images[(imagePtr + y) | 0] = 0;\n y = ((y + size) - 1) | 0;\n images[(imagePtr + y) | 0] = 0;\n y = (y + 1) | 0;\n }\n for ( x = 0; (x | 0) < (size | 0); x = (x + 1) | 0) {\n images[(imagePtr + y) | 0] = 0;\n y = (y + 1) | 0;\n }\n }\n\n function skeletonize() {\n var subImagePtr = 0,\n erodedImagePtr = 0,\n tempImagePtr = 0,\n skelImagePtr = 0,\n sum = 0,\n done = 0;\n\n erodedImagePtr = imul(size, size) | 0;\n tempImagePtr = (erodedImagePtr + erodedImagePtr) | 0;\n skelImagePtr = (tempImagePtr + erodedImagePtr) | 0;\n\n // init skel-image\n init(skelImagePtr, 0);\n zeroBorder(subImagePtr);\n\n do {\n erode(subImagePtr, erodedImagePtr);\n dilate(erodedImagePtr, tempImagePtr);\n subtract(subImagePtr, tempImagePtr, tempImagePtr);\n bitwiseOr(skelImagePtr, tempImagePtr, skelImagePtr);\n memcpy(erodedImagePtr, subImagePtr);\n sum = countNonZero(subImagePtr) | 0;\n done = ((sum | 0) == 0 | 0);\n } while(!done);\n }\n\n return {\n skeletonize : skeletonize\n };\n}\n/* @preserve ASM END */\n\nexport default Skeletonizer;\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/skeletonizer.js\n **/","export default {\n drawRect: function(pos, size, ctx, style){\n ctx.strokeStyle = style.color;\n ctx.fillStyle = style.color;\n ctx.lineWidth = 1;\n ctx.beginPath();\n ctx.strokeRect(pos.x, pos.y, size.x, size.y);\n },\n drawPath: function(path, def, ctx, style) {\n ctx.strokeStyle = style.color;\n ctx.fillStyle = style.color;\n ctx.lineWidth = style.lineWidth;\n ctx.beginPath();\n ctx.moveTo(path[0][def.x], path[0][def.y]);\n for (var j = 1; j < path.length; j++) {\n ctx.lineTo(path[j][def.x], path[j][def.y]);\n }\n ctx.closePath();\n ctx.stroke();\n },\n drawImage: function(imageData, size, ctx) {\n var canvasData = ctx.getImageData(0, 0, size.x, size.y),\n data = canvasData.data,\n imageDataPos = imageData.length,\n canvasDataPos = data.length,\n value;\n\n if (canvasDataPos/imageDataPos !== 4) {\n return false;\n }\n while(imageDataPos--){\n value = imageData[imageDataPos];\n data[--canvasDataPos] = 255;\n data[--canvasDataPos] = value;\n data[--canvasDataPos] = value;\n data[--canvasDataPos] = value;\n }\n ctx.putImageData(canvasData, 0, 0);\n return true;\n }\n};\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/image_debug.js\n **/","import Bresenham from './bresenham';\nimport ImageDebug from './image_debug';\nimport Code128Reader from './code_128_reader';\nimport EANReader from './ean_reader';\nimport Code39Reader from './code_39_reader';\nimport Code39VINReader from './code_39_vin_reader';\nimport CodabarReader from './codabar_reader';\nimport UPCReader from './upc_reader';\nimport EAN8Reader from './ean_8_reader';\nimport UPCEReader from './upc_e_reader';\nimport I2of5Reader from './i2of5_reader';\n\nvar readers = {\n code_128_reader: Code128Reader,\n ean_reader: EANReader,\n ean_8_reader: EAN8Reader,\n code_39_reader: Code39Reader,\n code_39_vin_reader: Code39VINReader,\n codabar_reader: CodabarReader,\n upc_reader: UPCReader,\n upc_e_reader: UPCEReader,\n i2of5_reader: I2of5Reader\n};\nexport default {\n create: function(config, inputImageWrapper) {\n var _canvas = {\n ctx: {\n frequency: null,\n pattern: null,\n overlay: null\n },\n dom: {\n frequency: null,\n pattern: null,\n overlay: null\n }\n },\n _barcodeReaders = [];\n\n initCanvas();\n initReaders();\n initConfig();\n\n function initCanvas() {\n if (typeof document !== 'undefined') {\n var $debug = document.querySelector(\"#debug.detection\");\n _canvas.dom.frequency = document.querySelector(\"canvas.frequency\");\n if (!_canvas.dom.frequency) {\n _canvas.dom.frequency = document.createElement(\"canvas\");\n _canvas.dom.frequency.className = \"frequency\";\n if ($debug) {\n $debug.appendChild(_canvas.dom.frequency);\n }\n }\n _canvas.ctx.frequency = _canvas.dom.frequency.getContext(\"2d\");\n\n _canvas.dom.pattern = document.querySelector(\"canvas.patternBuffer\");\n if (!_canvas.dom.pattern) {\n _canvas.dom.pattern = document.createElement(\"canvas\");\n _canvas.dom.pattern.className = \"patternBuffer\";\n if ($debug) {\n $debug.appendChild(_canvas.dom.pattern);\n }\n }\n _canvas.ctx.pattern = _canvas.dom.pattern.getContext(\"2d\");\n\n _canvas.dom.overlay = document.querySelector(\"canvas.drawingBuffer\");\n if (_canvas.dom.overlay) {\n _canvas.ctx.overlay = _canvas.dom.overlay.getContext(\"2d\");\n }\n }\n }\n\n function initReaders() {\n config.readers.forEach(function(readerConfig) {\n var reader,\n config = {};\n\n if (typeof readerConfig === 'object') {\n reader = readerConfig.format;\n config = readerConfig.config;\n } else if (typeof readerConfig === 'string') {\n reader = readerConfig;\n }\n console.log(\"Before registering reader: \", reader);\n _barcodeReaders.push(new readers[reader](config));\n });\n console.log(\"Registered Readers: \" + _barcodeReaders\n .map((reader) => JSON.stringify({format: reader.FORMAT, config: reader.config}))\n .join(', '));\n }\n\n function initConfig() {\n if (typeof document !== 'undefined') {\n var i,\n vis = [{\n node: _canvas.dom.frequency,\n prop: config.showFrequency\n }, {\n node: _canvas.dom.pattern,\n prop: config.showPattern\n }];\n\n for (i = 0; i < vis.length; i++) {\n if (vis[i].prop === true) {\n vis[i].node.style.display = \"block\";\n } else {\n vis[i].node.style.display = \"none\";\n }\n }\n }\n }\n\n /**\n * extend the line on both ends\n * @param {Array} line\n * @param {Number} angle\n */\n function getExtendedLine(line, angle, ext) {\n function extendLine(amount) {\n var extension = {\n y: amount * Math.sin(angle),\n x: amount * Math.cos(angle)\n };\n\n line[0].y -= extension.y;\n line[0].x -= extension.x;\n line[1].y += extension.y;\n line[1].x += extension.x;\n }\n\n // check if inside image\n extendLine(ext);\n while (ext > 1 && (!inputImageWrapper.inImageWithBorder(line[0], 0)\n || !inputImageWrapper.inImageWithBorder(line[1], 0))) {\n ext -= Math.ceil(ext / 2);\n extendLine(-ext);\n }\n return line;\n }\n\n function getLine(box) {\n return [{\n x: (box[1][0] - box[0][0]) / 2 + box[0][0],\n y: (box[1][1] - box[0][1]) / 2 + box[0][1]\n }, {\n x: (box[3][0] - box[2][0]) / 2 + box[2][0],\n y: (box[3][1] - box[2][1]) / 2 + box[2][1]\n }];\n }\n\n function tryDecode(line) {\n var result = null,\n i,\n barcodeLine = Bresenham.getBarcodeLine(inputImageWrapper, line[0], line[1]);\n\n if (config.showFrequency) {\n ImageDebug.drawPath(line, {x: 'x', y: 'y'}, _canvas.ctx.overlay, {color: 'red', lineWidth: 3});\n Bresenham.debug.printFrequency(barcodeLine.line, _canvas.dom.frequency);\n }\n Bresenham.toBinaryLine(barcodeLine);\n if (config.showPattern) {\n Bresenham.debug.printPattern(barcodeLine.line, _canvas.dom.pattern);\n }\n\n for ( i = 0; i < _barcodeReaders.length && result === null; i++) {\n result = _barcodeReaders[i].decodePattern(barcodeLine.line);\n }\n if(result === null){\n return null;\n }\n return {\n codeResult: result,\n barcodeLine: barcodeLine\n };\n\n }\n\n /**\n * This method slices the given area apart and tries to detect a barcode-pattern\n * for each slice. It returns the decoded barcode, or null if nothing was found\n * @param {Array} box\n * @param {Array} line\n * @param {Number} lineAngle\n */\n function tryDecodeBruteForce(box, line, lineAngle) {\n var sideLength = Math.sqrt(Math.pow(box[1][0] - box[0][0], 2) + Math.pow((box[1][1] - box[0][1]), 2)),\n i,\n slices = 16,\n result = null,\n dir,\n extension,\n xdir = Math.sin(lineAngle),\n ydir = Math.cos(lineAngle);\n\n for ( i = 1; i < slices && result === null; i++) {\n // move line perpendicular to angle\n dir = sideLength / slices * i * (i % 2 === 0 ? -1 : 1);\n extension = {\n y: dir * xdir,\n x: dir * ydir\n };\n line[0].y += extension.x;\n line[0].x -= extension.y;\n line[1].y += extension.x;\n line[1].x -= extension.y;\n\n result = tryDecode(line);\n }\n return result;\n }\n\n function getLineLength(line) {\n return Math.sqrt(\n Math.pow(Math.abs(line[1].y - line[0].y), 2) +\n Math.pow(Math.abs(line[1].x - line[0].x), 2));\n }\n\n /**\n * With the help of the configured readers (Code128 or EAN) this function tries to detect a\n * valid barcode pattern within the given area.\n * @param {Object} box The area to search in\n * @returns {Object} the result {codeResult, line, angle, pattern, threshold}\n */\n function decodeFromBoundingBox(box) {\n var line,\n lineAngle,\n ctx = _canvas.ctx.overlay,\n result,\n lineLength;\n\n if (config.drawBoundingBox && ctx) {\n ImageDebug.drawPath(box, {x: 0, y: 1}, ctx, {color: \"blue\", lineWidth: 2});\n }\n\n line = getLine(box);\n lineLength = getLineLength(line);\n lineAngle = Math.atan2(line[1].y - line[0].y, line[1].x - line[0].x);\n line = getExtendedLine(line, lineAngle, Math.floor(lineLength * 0.1));\n if (line === null){\n return null;\n }\n\n result = tryDecode(line);\n if (result === null) {\n result = tryDecodeBruteForce(box, line, lineAngle);\n }\n\n if (result === null) {\n return null;\n }\n\n if (result && config.drawScanline && ctx) {\n ImageDebug.drawPath(line, {x: 'x', y: 'y'}, ctx, {color: 'red', lineWidth: 3});\n }\n\n return {\n codeResult : result.codeResult,\n line : line,\n angle : lineAngle,\n pattern : result.barcodeLine.line,\n threshold : result.barcodeLine.threshold\n };\n }\n\n return {\n decodeFromBoundingBox: function(box) {\n return decodeFromBoundingBox(box);\n },\n decodeFromBoundingBoxes: function(boxes) {\n var i, result;\n for ( i = 0; i < boxes.length; i++) {\n result = decodeFromBoundingBox(boxes[i]);\n if (result && result.codeResult) {\n result.box = boxes[i];\n return result;\n }\n }\n },\n setReaders: function(readers) {\n config.readers = readers;\n _barcodeReaders.length = 0;\n initReaders();\n }\n };\n }\n};\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/barcode_decoder.js\n **/","import CVUtils from './cv_utils';\nimport ImageWrapper from './image_wrapper';\n\nvar Bresenham = {};\n\nvar Slope = {\n DIR: {\n UP: 1,\n DOWN: -1\n }\n};\n/**\n * Scans a line of the given image from point p1 to p2 and returns a result object containing\n * gray-scale values (0-255) of the underlying pixels in addition to the min\n * and max values.\n * @param {Object} imageWrapper\n * @param {Object} p1 The start point {x,y}\n * @param {Object} p2 The end point {x,y}\n * @returns {line, min, max}\n */\nBresenham.getBarcodeLine = function(imageWrapper, p1, p2) {\n var x0 = p1.x | 0,\n y0 = p1.y | 0,\n x1 = p2.x | 0,\n y1 = p2.y | 0,\n steep = Math.abs(y1 - y0) > Math.abs(x1 - x0),\n deltax,\n deltay,\n error,\n ystep,\n y,\n tmp,\n x,\n line = [],\n imageData = imageWrapper.data,\n width = imageWrapper.size.x,\n sum = 0,\n val,\n min = 255,\n max = 0;\n\n function read(a, b) {\n val = imageData[b * width + a];\n sum += val;\n min = val < min ? val : min;\n max = val > max ? val : max;\n line.push(val);\n }\n\n if (steep) {\n tmp = x0;\n x0 = y0;\n y0 = tmp;\n\n tmp = x1;\n x1 = y1;\n y1 = tmp;\n }\n if (x0 > x1) {\n tmp = x0;\n x0 = x1;\n x1 = tmp;\n\n tmp = y0;\n y0 = y1;\n y1 = tmp;\n }\n deltax = x1 - x0;\n deltay = Math.abs(y1 - y0);\n error = (deltax / 2) | 0;\n y = y0;\n ystep = y0 < y1 ? 1 : -1;\n for ( x = x0; x < x1; x++) {\n if (steep){\n read(y, x);\n } else {\n read(x, y);\n }\n error = error - deltay;\n if (error < 0) {\n y = y + ystep;\n error = error + deltax;\n }\n }\n\n return {\n line: line,\n min: min,\n max: max\n };\n};\n\nBresenham.toOtsuBinaryLine = function(result) {\n var line = result.line,\n image = new ImageWrapper({x: line.length - 1, y: 1}, line),\n threshold = CVUtils.determineOtsuThreshold(image, 5);\n\n line = CVUtils.sharpenLine(line);\n CVUtils.thresholdImage(image, threshold);\n\n return {\n line: line,\n threshold: threshold\n };\n};\n\n/**\n * Converts the result from getBarcodeLine into a binary representation\n * also considering the frequency and slope of the signal for more robust results\n * @param {Object} result {line, min, max}\n */\nBresenham.toBinaryLine = function(result) {\n var min = result.min,\n max = result.max,\n line = result.line,\n slope,\n slope2,\n center = min + (max - min) / 2,\n extrema = [],\n currentDir,\n dir,\n threshold = (max - min) / 12,\n rThreshold = -threshold,\n i,\n j;\n\n // 1. find extrema\n currentDir = line[0] > center ? Slope.DIR.UP : Slope.DIR.DOWN;\n extrema.push({\n pos: 0,\n val: line[0]\n });\n for ( i = 0; i < line.length - 2; i++) {\n slope = (line[i + 1] - line[i]);\n slope2 = (line[i + 2] - line[i + 1]);\n if ((slope + slope2) < rThreshold && line[i + 1] < (center * 1.5)) {\n dir = Slope.DIR.DOWN;\n } else if ((slope + slope2) > threshold && line[i + 1] > (center * 0.5)) {\n dir = Slope.DIR.UP;\n } else {\n dir = currentDir;\n }\n\n if (currentDir !== dir) {\n extrema.push({\n pos: i,\n val: line[i]\n });\n currentDir = dir;\n }\n }\n extrema.push({\n pos: line.length,\n val: line[line.length - 1]\n });\n\n for ( j = extrema[0].pos; j < extrema[1].pos; j++) {\n line[j] = line[j] > center ? 0 : 1;\n }\n\n // iterate over extrema and convert to binary based on avg between minmax\n for ( i = 1; i < extrema.length - 1; i++) {\n if (extrema[i + 1].val > extrema[i].val) {\n threshold = (extrema[i].val + ((extrema[i + 1].val - extrema[i].val) / 3) * 2) | 0;\n } else {\n threshold = (extrema[i + 1].val + ((extrema[i].val - extrema[i + 1].val) / 3)) | 0;\n }\n\n for ( j = extrema[i].pos; j < extrema[i + 1].pos; j++) {\n line[j] = line[j] > threshold ? 0 : 1;\n }\n }\n\n return {\n line: line,\n threshold: threshold\n };\n};\n\n/**\n * Used for development only\n */\nBresenham.debug = {\n printFrequency: function(line, canvas) {\n var i,\n ctx = canvas.getContext(\"2d\");\n canvas.width = line.length;\n canvas.height = 256;\n\n ctx.beginPath();\n ctx.strokeStyle = \"blue\";\n for ( i = 0; i < line.length; i++) {\n ctx.moveTo(i, 255);\n ctx.lineTo(i, 255 - line[i]);\n }\n ctx.stroke();\n ctx.closePath();\n },\n\n printPattern: function(line, canvas) {\n var ctx = canvas.getContext(\"2d\"), i;\n\n canvas.width = line.length;\n ctx.fillColor = \"black\";\n for ( i = 0; i < line.length; i++) {\n if (line[i] === 1) {\n ctx.fillRect(i, 0, 1, 100);\n }\n }\n }\n};\n\nexport default Bresenham;\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/bresenham.js\n **/","import BarcodeReader from './barcode_reader';\n\nfunction Code128Reader() {\n BarcodeReader.call(this);\n}\n\nvar properties = {\n CODE_SHIFT: {value: 98},\n CODE_C: {value: 99},\n CODE_B: {value: 100},\n CODE_A: {value: 101},\n START_CODE_A: {value: 103},\n START_CODE_B: {value: 104},\n START_CODE_C: {value: 105},\n STOP_CODE: {value: 106},\n MODULO: {value: 11},\n CODE_PATTERN: {value: [\n [2, 1, 2, 2, 2, 2],\n [2, 2, 2, 1, 2, 2],\n [2, 2, 2, 2, 2, 1],\n [1, 2, 1, 2, 2, 3],\n [1, 2, 1, 3, 2, 2],\n [1, 3, 1, 2, 2, 2],\n [1, 2, 2, 2, 1, 3],\n [1, 2, 2, 3, 1, 2],\n [1, 3, 2, 2, 1, 2],\n [2, 2, 1, 2, 1, 3],\n [2, 2, 1, 3, 1, 2],\n [2, 3, 1, 2, 1, 2],\n [1, 1, 2, 2, 3, 2],\n [1, 2, 2, 1, 3, 2],\n [1, 2, 2, 2, 3, 1],\n [1, 1, 3, 2, 2, 2],\n [1, 2, 3, 1, 2, 2],\n [1, 2, 3, 2, 2, 1],\n [2, 2, 3, 2, 1, 1],\n [2, 2, 1, 1, 3, 2],\n [2, 2, 1, 2, 3, 1],\n [2, 1, 3, 2, 1, 2],\n [2, 2, 3, 1, 1, 2],\n [3, 1, 2, 1, 3, 1],\n [3, 1, 1, 2, 2, 2],\n [3, 2, 1, 1, 2, 2],\n [3, 2, 1, 2, 2, 1],\n [3, 1, 2, 2, 1, 2],\n [3, 2, 2, 1, 1, 2],\n [3, 2, 2, 2, 1, 1],\n [2, 1, 2, 1, 2, 3],\n [2, 1, 2, 3, 2, 1],\n [2, 3, 2, 1, 2, 1],\n [1, 1, 1, 3, 2, 3],\n [1, 3, 1, 1, 2, 3],\n [1, 3, 1, 3, 2, 1],\n [1, 1, 2, 3, 1, 3],\n [1, 3, 2, 1, 1, 3],\n [1, 3, 2, 3, 1, 1],\n [2, 1, 1, 3, 1, 3],\n [2, 3, 1, 1, 1, 3],\n [2, 3, 1, 3, 1, 1],\n [1, 1, 2, 1, 3, 3],\n [1, 1, 2, 3, 3, 1],\n [1, 3, 2, 1, 3, 1],\n [1, 1, 3, 1, 2, 3],\n [1, 1, 3, 3, 2, 1],\n [1, 3, 3, 1, 2, 1],\n [3, 1, 3, 1, 2, 1],\n [2, 1, 1, 3, 3, 1],\n [2, 3, 1, 1, 3, 1],\n [2, 1, 3, 1, 1, 3],\n [2, 1, 3, 3, 1, 1],\n [2, 1, 3, 1, 3, 1],\n [3, 1, 1, 1, 2, 3],\n [3, 1, 1, 3, 2, 1],\n [3, 3, 1, 1, 2, 1],\n [3, 1, 2, 1, 1, 3],\n [3, 1, 2, 3, 1, 1],\n [3, 3, 2, 1, 1, 1],\n [3, 1, 4, 1, 1, 1],\n [2, 2, 1, 4, 1, 1],\n [4, 3, 1, 1, 1, 1],\n [1, 1, 1, 2, 2, 4],\n [1, 1, 1, 4, 2, 2],\n [1, 2, 1, 1, 2, 4],\n [1, 2, 1, 4, 2, 1],\n [1, 4, 1, 1, 2, 2],\n [1, 4, 1, 2, 2, 1],\n [1, 1, 2, 2, 1, 4],\n [1, 1, 2, 4, 1, 2],\n [1, 2, 2, 1, 1, 4],\n [1, 2, 2, 4, 1, 1],\n [1, 4, 2, 1, 1, 2],\n [1, 4, 2, 2, 1, 1],\n [2, 4, 1, 2, 1, 1],\n [2, 2, 1, 1, 1, 4],\n [4, 1, 3, 1, 1, 1],\n [2, 4, 1, 1, 1, 2],\n [1, 3, 4, 1, 1, 1],\n [1, 1, 1, 2, 4, 2],\n [1, 2, 1, 1, 4, 2],\n [1, 2, 1, 2, 4, 1],\n [1, 1, 4, 2, 1, 2],\n [1, 2, 4, 1, 1, 2],\n [1, 2, 4, 2, 1, 1],\n [4, 1, 1, 2, 1, 2],\n [4, 2, 1, 1, 1, 2],\n [4, 2, 1, 2, 1, 1],\n [2, 1, 2, 1, 4, 1],\n [2, 1, 4, 1, 2, 1],\n [4, 1, 2, 1, 2, 1],\n [1, 1, 1, 1, 4, 3],\n [1, 1, 1, 3, 4, 1],\n [1, 3, 1, 1, 4, 1],\n [1, 1, 4, 1, 1, 3],\n [1, 1, 4, 3, 1, 1],\n [4, 1, 1, 1, 1, 3],\n [4, 1, 1, 3, 1, 1],\n [1, 1, 3, 1, 4, 1],\n [1, 1, 4, 1, 3, 1],\n [3, 1, 1, 1, 4, 1],\n [4, 1, 1, 1, 3, 1],\n [2, 1, 1, 4, 1, 2],\n [2, 1, 1, 2, 1, 4],\n [2, 1, 1, 2, 3, 2],\n [2, 3, 3, 1, 1, 1, 2]\n ]},\n SINGLE_CODE_ERROR: {value: 1},\n AVG_CODE_ERROR: {value: 0.5},\n FORMAT: {value: \"code_128\", writeable: false}\n};\n\nCode128Reader.prototype = Object.create(BarcodeReader.prototype, properties);\nCode128Reader.prototype.constructor = Code128Reader;\n\nCode128Reader.prototype._decodeCode = function(start) {\n var counter = [0, 0, 0, 0, 0, 0],\n i,\n self = this,\n offset = start,\n isWhite = !self._row[offset],\n counterPos = 0,\n bestMatch = {\n error: Number.MAX_VALUE,\n code: -1,\n start: start,\n end: start\n },\n code,\n error,\n normalized;\n\n for ( i = offset; i < self._row.length; i++) {\n if (self._row[i] ^ isWhite) {\n counter[counterPos]++;\n } else {\n if (counterPos === counter.length - 1) {\n normalized = self._normalize(counter);\n if (normalized) {\n for (code = 0; code < self.CODE_PATTERN.length; code++) {\n error = self._matchPattern(normalized, self.CODE_PATTERN[code]);\n if (error < bestMatch.error) {\n bestMatch.code = code;\n bestMatch.error = error;\n }\n }\n bestMatch.end = i;\n return bestMatch;\n }\n } else {\n counterPos++;\n }\n counter[counterPos] = 1;\n isWhite = !isWhite;\n }\n }\n return null;\n};\n\nCode128Reader.prototype._findStart = function() {\n var counter = [0, 0, 0, 0, 0, 0],\n i,\n self = this,\n offset = self._nextSet(self._row),\n isWhite = false,\n counterPos = 0,\n bestMatch = {\n error: Number.MAX_VALUE,\n code: -1,\n start: 0,\n end: 0\n },\n code,\n error,\n j,\n sum,\n normalized;\n\n for ( i = offset; i < self._row.length; i++) {\n if (self._row[i] ^ isWhite) {\n counter[counterPos]++;\n } else {\n if (counterPos === counter.length - 1) {\n sum = 0;\n for ( j = 0; j < counter.length; j++) {\n sum += counter[j];\n }\n normalized = self._normalize(counter);\n if (normalized) {\n for (code = self.START_CODE_A; code <= self.START_CODE_C; code++) {\n error = self._matchPattern(normalized, self.CODE_PATTERN[code]);\n if (error < bestMatch.error) {\n bestMatch.code = code;\n bestMatch.error = error;\n }\n }\n if (bestMatch.error < self.AVG_CODE_ERROR) {\n bestMatch.start = i - sum;\n bestMatch.end = i;\n return bestMatch;\n }\n }\n\n for ( j = 0; j < 4; j++) {\n counter[j] = counter[j + 2];\n }\n counter[4] = 0;\n counter[5] = 0;\n counterPos--;\n } else {\n counterPos++;\n }\n counter[counterPos] = 1;\n isWhite = !isWhite;\n }\n }\n return null;\n};\n\nCode128Reader.prototype._decode = function() {\n var self = this,\n startInfo = self._findStart(),\n code = null,\n done = false,\n result = [],\n multiplier = 0,\n checksum = 0,\n codeset,\n rawResult = [],\n decodedCodes = [],\n shiftNext = false,\n unshift;\n\n if (startInfo === null) {\n return null;\n }\n code = {\n code: startInfo.code,\n start: startInfo.start,\n end: startInfo.end\n };\n decodedCodes.push(code);\n checksum = code.code;\n switch (code.code) {\n case self.START_CODE_A:\n codeset = self.CODE_A;\n break;\n case self.START_CODE_B:\n codeset = self.CODE_B;\n break;\n case self.START_CODE_C:\n codeset = self.CODE_C;\n break;\n default:\n return null;\n }\n\n while (!done) {\n unshift = shiftNext;\n shiftNext = false;\n code = self._decodeCode(code.end);\n if (code !== null) {\n if (code.code !== self.STOP_CODE) {\n rawResult.push(code.code);\n multiplier++;\n checksum += multiplier * code.code;\n }\n decodedCodes.push(code);\n\n switch (codeset) {\n case self.CODE_A:\n if (code.code < 64) {\n result.push(String.fromCharCode(32 + code.code));\n } else if (code.code < 96) {\n result.push(String.fromCharCode(code.code - 64));\n } else {\n switch (code.code) {\n case self.CODE_SHIFT:\n shiftNext = true;\n codeset = self.CODE_B;\n break;\n case self.CODE_B:\n codeset = self.CODE_B;\n break;\n case self.CODE_C:\n codeset = self.CODE_C;\n break;\n case self.STOP_CODE:\n done = true;\n break;\n }\n }\n break;\n case self.CODE_B:\n if (code.code < 96) {\n result.push(String.fromCharCode(32 + code.code));\n } else {\n switch (code.code) {\n case self.CODE_SHIFT:\n shiftNext = true;\n codeset = self.CODE_A;\n break;\n case self.CODE_A:\n codeset = self.CODE_A;\n break;\n case self.CODE_C:\n codeset = self.CODE_C;\n break;\n case self.STOP_CODE:\n done = true;\n break;\n }\n }\n break;\n case self.CODE_C:\n if (code.code < 100) {\n result.push(code.code < 10 ? \"0\" + code.code : code.code);\n }\n switch (code.code) {\n case self.CODE_A:\n codeset = self.CODE_A;\n break;\n case self.CODE_B:\n codeset = self.CODE_B;\n break;\n case self.STOP_CODE:\n done = true;\n break;\n }\n break;\n }\n } else {\n done = true;\n }\n if (unshift) {\n codeset = codeset === self.CODE_A ? self.CODE_B : self.CODE_A;\n }\n }\n\n if (code === null) {\n return null;\n }\n\n // find end bar\n code.end = self._nextUnset(self._row, code.end);\n if (!self._verifyTrailingWhitespace(code)){\n return null;\n }\n\n // checksum\n // Does not work correctly yet!!! startcode - endcode?\n checksum -= multiplier * rawResult[rawResult.length - 1];\n if (checksum % 103 !== rawResult[rawResult.length - 1]) {\n return null;\n }\n\n if (!result.length) {\n return null;\n }\n\n // remove last code from result (checksum)\n result.splice(result.length - 1, 1);\n\n return {\n code: result.join(\"\"),\n start: startInfo.start,\n end: code.end,\n codeset: codeset,\n startInfo: startInfo,\n decodedCodes: decodedCodes,\n endInfo: code\n };\n};\n\n\nBarcodeReader.prototype._verifyTrailingWhitespace = function(endInfo) {\n var self = this,\n trailingWhitespaceEnd;\n\n trailingWhitespaceEnd = endInfo.end + ((endInfo.end - endInfo.start) / 2);\n if (trailingWhitespaceEnd < self._row.length) {\n if (self._matchRange(endInfo.end, trailingWhitespaceEnd, 0)) {\n return endInfo;\n }\n }\n return null;\n};\n\nexport default Code128Reader;\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/code_128_reader.js\n **/","function BarcodeReader(config) {\n this._row = [];\n this.config = config || {};\n return this;\n}\n\nBarcodeReader.prototype._nextUnset = function(line, start) {\n var i;\n\n if (start === undefined) {\n start = 0;\n }\n for (i = start; i < line.length; i++) {\n if (!line[i]) {\n return i;\n }\n }\n return line.length;\n};\n\nBarcodeReader.prototype._matchPattern = function(counter, code) {\n var i,\n error = 0,\n singleError = 0,\n modulo = this.MODULO,\n maxSingleError = this.SINGLE_CODE_ERROR || 1;\n\n for (i = 0; i < counter.length; i++) {\n singleError = Math.abs(code[i] - counter[i]);\n if (singleError > maxSingleError) {\n return Number.MAX_VALUE;\n }\n error += singleError;\n }\n return error / modulo;\n};\n\nBarcodeReader.prototype._nextSet = function(line, offset) {\n var i;\n\n offset = offset || 0;\n for (i = offset; i < line.length; i++) {\n if (line[i]) {\n return i;\n }\n }\n return line.length;\n};\n\nBarcodeReader.prototype._normalize = function(counter, modulo) {\n var i,\n self = this,\n sum = 0,\n ratio,\n numOnes = 0,\n normalized = [],\n norm = 0;\n\n if (!modulo) {\n modulo = self.MODULO;\n }\n for (i = 0; i < counter.length; i++) {\n if (counter[i] === 1) {\n numOnes++;\n } else {\n sum += counter[i];\n }\n }\n ratio = sum / (modulo - numOnes);\n if (ratio > 1.0) {\n for (i = 0; i < counter.length; i++) {\n norm = counter[i] === 1 ? counter[i] : counter[i] / ratio;\n normalized.push(norm);\n }\n } else {\n ratio = (sum + numOnes) / modulo;\n for (i = 0; i < counter.length; i++) {\n norm = counter[i] / ratio;\n normalized.push(norm);\n }\n }\n return normalized;\n};\n\nBarcodeReader.prototype._matchTrace = function(cmpCounter, epsilon) {\n var counter = [],\n i,\n self = this,\n offset = self._nextSet(self._row),\n isWhite = !self._row[offset],\n counterPos = 0,\n bestMatch = {\n error: Number.MAX_VALUE,\n code: -1,\n start: 0\n },\n error;\n\n if (cmpCounter) {\n for ( i = 0; i < cmpCounter.length; i++) {\n counter.push(0);\n }\n for ( i = offset; i < self._row.length; i++) {\n if (self._row[i] ^ isWhite) {\n counter[counterPos]++;\n } else {\n if (counterPos === counter.length - 1) {\n error = self._matchPattern(counter, cmpCounter);\n\n if (error < epsilon) {\n bestMatch.start = i - offset;\n bestMatch.end = i;\n bestMatch.counter = counter;\n return bestMatch;\n } else {\n return null;\n }\n } else {\n counterPos++;\n }\n counter[counterPos] = 1;\n isWhite = !isWhite;\n }\n }\n } else {\n counter.push(0);\n for ( i = offset; i < self._row.length; i++) {\n if (self._row[i] ^ isWhite) {\n counter[counterPos]++;\n } else {\n counterPos++;\n counter.push(0);\n counter[counterPos] = 1;\n isWhite = !isWhite;\n }\n }\n }\n\n // if cmpCounter was not given\n bestMatch.start = offset;\n bestMatch.end = self._row.length - 1;\n bestMatch.counter = counter;\n return bestMatch;\n};\n\nBarcodeReader.prototype.decodePattern = function(pattern) {\n var self = this,\n result;\n\n self._row = pattern;\n result = self._decode();\n if (result === null) {\n self._row.reverse();\n result = self._decode();\n if (result) {\n result.direction = BarcodeReader.DIRECTION.REVERSE;\n result.start = self._row.length - result.start;\n result.end = self._row.length - result.end;\n }\n } else {\n result.direction = BarcodeReader.DIRECTION.FORWARD;\n }\n if (result) {\n result.format = self.FORMAT;\n }\n return result;\n};\n\nBarcodeReader.prototype._matchRange = function(start, end, value) {\n var i;\n\n start = start < 0 ? 0 : start;\n for (i = start; i < end; i++) {\n if (this._row[i] !== value) {\n return false;\n }\n }\n return true;\n};\n\nBarcodeReader.prototype._fillCounters = function(offset, end, isWhite) {\n var self = this,\n counterPos = 0,\n i,\n counters = [];\n\n isWhite = (typeof isWhite !== 'undefined') ? isWhite : true;\n offset = (typeof offset !== 'undefined') ? offset : self._nextUnset(self._row);\n end = end || self._row.length;\n\n counters[counterPos] = 0;\n for (i = offset; i < end; i++) {\n if (self._row[i] ^ isWhite) {\n counters[counterPos]++;\n } else {\n counterPos++;\n counters[counterPos] = 1;\n isWhite = !isWhite;\n }\n }\n return counters;\n};\n\nObject.defineProperty(BarcodeReader.prototype, \"FORMAT\", {\n value: 'unknown',\n writeable: false\n});\n\nBarcodeReader.DIRECTION = {\n FORWARD: 1,\n REVERSE: -1\n};\n\nBarcodeReader.Exception = {\n StartNotFoundException: \"Start-Info was not found!\",\n CodeNotFoundException: \"Code could not be found!\",\n PatternNotFoundException: \"Pattern could not be found!\"\n};\n\nBarcodeReader.CONFIG_KEYS = {};\n\nexport default BarcodeReader;\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/barcode_reader.js\n **/","import BarcodeReader from './barcode_reader';\n\nfunction EANReader(opts) {\n BarcodeReader.call(this, opts);\n}\n\nvar properties = {\n CODE_L_START : {value: 0},\n MODULO : {value: 7},\n CODE_G_START : {value: 10},\n START_PATTERN : {value: [1 / 3 * 7, 1 / 3 * 7, 1 / 3 * 7]},\n STOP_PATTERN : {value: [1 / 3 * 7, 1 / 3 * 7, 1 / 3 * 7]},\n MIDDLE_PATTERN : {value: [1 / 5 * 7, 1 / 5 * 7, 1 / 5 * 7, 1 / 5 * 7, 1 / 5 * 7]},\n CODE_PATTERN : {value: [\n [3, 2, 1, 1],\n [2, 2, 2, 1],\n [2, 1, 2, 2],\n [1, 4, 1, 1],\n [1, 1, 3, 2],\n [1, 2, 3, 1],\n [1, 1, 1, 4],\n [1, 3, 1, 2],\n [1, 2, 1, 3],\n [3, 1, 1, 2],\n [1, 1, 2, 3],\n [1, 2, 2, 2],\n [2, 2, 1, 2],\n [1, 1, 4, 1],\n [2, 3, 1, 1],\n [1, 3, 2, 1],\n [4, 1, 1, 1],\n [2, 1, 3, 1],\n [3, 1, 2, 1],\n [2, 1, 1, 3]\n ]},\n CODE_FREQUENCY : {value: [0, 11, 13, 14, 19, 25, 28, 21, 22, 26]},\n SINGLE_CODE_ERROR: {value: 0.67},\n AVG_CODE_ERROR: {value: 0.27},\n FORMAT: {value: \"ean_13\", writeable: false}\n};\n\nEANReader.prototype = Object.create(BarcodeReader.prototype, properties);\nEANReader.prototype.constructor = EANReader;\n\nEANReader.prototype._decodeCode = function(start, coderange) {\n var counter = [0, 0, 0, 0],\n i,\n self = this,\n offset = start,\n isWhite = !self._row[offset],\n counterPos = 0,\n bestMatch = {\n error : Number.MAX_VALUE,\n code : -1,\n start : start,\n end : start\n },\n code,\n error,\n normalized;\n\n if (!coderange) {\n coderange = self.CODE_PATTERN.length;\n }\n\n for ( i = offset; i < self._row.length; i++) {\n if (self._row[i] ^ isWhite) {\n counter[counterPos]++;\n } else {\n if (counterPos === counter.length - 1) {\n normalized = self._normalize(counter);\n if (normalized) {\n for (code = 0; code < coderange; code++) {\n error = self._matchPattern(normalized, self.CODE_PATTERN[code]);\n if (error < bestMatch.error) {\n bestMatch.code = code;\n bestMatch.error = error;\n }\n }\n bestMatch.end = i;\n if (bestMatch.error > self.AVG_CODE_ERROR) {\n return null;\n }\n return bestMatch;\n }\n } else {\n counterPos++;\n }\n counter[counterPos] = 1;\n isWhite = !isWhite;\n }\n }\n return null;\n};\n\nEANReader.prototype._findPattern = function(pattern, offset, isWhite, tryHarder, epsilon) {\n var counter = [],\n self = this,\n i,\n counterPos = 0,\n bestMatch = {\n error : Number.MAX_VALUE,\n code : -1,\n start : 0,\n end : 0\n },\n error,\n j,\n sum,\n normalized;\n\n if (!offset) {\n offset = self._nextSet(self._row);\n }\n\n if (isWhite === undefined) {\n isWhite = false;\n }\n\n if (tryHarder === undefined) {\n tryHarder = true;\n }\n\n if ( epsilon === undefined) {\n epsilon = self.AVG_CODE_ERROR;\n }\n\n for ( i = 0; i < pattern.length; i++) {\n counter[i] = 0;\n }\n\n for ( i = offset; i < self._row.length; i++) {\n if (self._row[i] ^ isWhite) {\n counter[counterPos]++;\n } else {\n if (counterPos === counter.length - 1) {\n sum = 0;\n for ( j = 0; j < counter.length; j++) {\n sum += counter[j];\n }\n normalized = self._normalize(counter);\n if (normalized) {\n error = self._matchPattern(normalized, pattern);\n\n if (error < epsilon) {\n bestMatch.error = error;\n bestMatch.start = i - sum;\n bestMatch.end = i;\n return bestMatch;\n }\n }\n if (tryHarder) {\n for ( j = 0; j < counter.length - 2; j++) {\n counter[j] = counter[j + 2];\n }\n counter[counter.length - 2] = 0;\n counter[counter.length - 1] = 0;\n counterPos--;\n } else {\n return null;\n }\n } else {\n counterPos++;\n }\n counter[counterPos] = 1;\n isWhite = !isWhite;\n }\n }\n return null;\n};\n\nEANReader.prototype._findStart = function() {\n var self = this,\n leadingWhitespaceStart,\n offset = self._nextSet(self._row),\n startInfo;\n\n while(!startInfo) {\n startInfo = self._findPattern(self.START_PATTERN, offset);\n if (!startInfo) {\n return null;\n }\n leadingWhitespaceStart = startInfo.start - (startInfo.end - startInfo.start);\n if (leadingWhitespaceStart >= 0) {\n if (self._matchRange(leadingWhitespaceStart, startInfo.start, 0)) {\n return startInfo;\n }\n }\n offset = startInfo.end;\n startInfo = null;\n }\n};\n\nEANReader.prototype._verifyTrailingWhitespace = function(endInfo) {\n var self = this,\n trailingWhitespaceEnd;\n\n trailingWhitespaceEnd = endInfo.end + (endInfo.end - endInfo.start);\n if (trailingWhitespaceEnd < self._row.length) {\n if (self._matchRange(endInfo.end, trailingWhitespaceEnd, 0)) {\n return endInfo;\n }\n }\n return null;\n};\n\nEANReader.prototype._findEnd = function(offset, isWhite) {\n var self = this,\n endInfo = self._findPattern(self.STOP_PATTERN, offset, isWhite, false);\n\n return endInfo !== null ? self._verifyTrailingWhitespace(endInfo) : null;\n};\n\nEANReader.prototype._calculateFirstDigit = function(codeFrequency) {\n var i,\n self = this;\n\n for ( i = 0; i < self.CODE_FREQUENCY.length; i++) {\n if (codeFrequency === self.CODE_FREQUENCY[i]) {\n return i;\n }\n }\n return null;\n};\n\nEANReader.prototype._decodePayload = function(code, result, decodedCodes) {\n var i,\n self = this,\n codeFrequency = 0x0,\n firstDigit;\n\n for ( i = 0; i < 6; i++) {\n code = self._decodeCode(code.end);\n if (!code) {\n return null;\n }\n if (code.code >= self.CODE_G_START) {\n code.code = code.code - self.CODE_G_START;\n codeFrequency |= 1 << (5 - i);\n } else {\n codeFrequency |= 0 << (5 - i);\n }\n result.push(code.code);\n decodedCodes.push(code);\n }\n\n firstDigit = self._calculateFirstDigit(codeFrequency);\n if (firstDigit === null) {\n return null;\n }\n result.unshift(firstDigit);\n\n code = self._findPattern(self.MIDDLE_PATTERN, code.end, true, false);\n if (code === null) {\n return null;\n }\n decodedCodes.push(code);\n\n for ( i = 0; i < 6; i++) {\n code = self._decodeCode(code.end, self.CODE_G_START);\n if (!code) {\n return null;\n }\n decodedCodes.push(code);\n result.push(code.code);\n }\n\n return code;\n};\n\nEANReader.prototype._decode = function() {\n var startInfo,\n self = this,\n code,\n result = [],\n decodedCodes = [];\n\n startInfo = self._findStart();\n if (!startInfo) {\n return null;\n }\n code = {\n code : startInfo.code,\n start : startInfo.start,\n end : startInfo.end\n };\n decodedCodes.push(code);\n code = self._decodePayload(code, result, decodedCodes);\n if (!code) {\n return null;\n }\n code = self._findEnd(code.end, false);\n if (!code){\n return null;\n }\n\n decodedCodes.push(code);\n\n // Checksum\n if (!self._checksum(result)) {\n return null;\n }\n\n return {\n code : result.join(\"\"),\n start : startInfo.start,\n end : code.end,\n codeset : \"\",\n startInfo : startInfo,\n decodedCodes : decodedCodes\n };\n};\n\nEANReader.prototype._checksum = function(result) {\n var sum = 0, i;\n\n for ( i = result.length - 2; i >= 0; i -= 2) {\n sum += result[i];\n }\n sum *= 3;\n for ( i = result.length - 1; i >= 0; i -= 2) {\n sum += result[i];\n }\n return sum % 10 === 0;\n};\n\nexport default (EANReader);\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/ean_reader.js\n **/","import BarcodeReader from './barcode_reader';\nimport ArrayHelper from './array_helper';\n\nfunction Code39Reader() {\n BarcodeReader.call(this);\n}\n\nvar properties = {\n ALPHABETH_STRING: {value: \"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ-. *$/+%\"},\n ALPHABET: {value: [48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78,\n 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 45, 46, 32, 42, 36, 47, 43, 37]},\n CHARACTER_ENCODINGS: {value: [0x034, 0x121, 0x061, 0x160, 0x031, 0x130, 0x070, 0x025, 0x124, 0x064, 0x109, 0x049,\n 0x148, 0x019, 0x118, 0x058, 0x00D, 0x10C, 0x04C, 0x01C, 0x103, 0x043, 0x142, 0x013, 0x112, 0x052, 0x007, 0x106,\n 0x046, 0x016, 0x181, 0x0C1, 0x1C0, 0x091, 0x190, 0x0D0, 0x085, 0x184, 0x0C4, 0x094, 0x0A8, 0x0A2, 0x08A, 0x02A\n ]},\n ASTERISK: {value: 0x094},\n FORMAT: {value: \"code_39\", writeable: false}\n};\n\nCode39Reader.prototype = Object.create(BarcodeReader.prototype, properties);\nCode39Reader.prototype.constructor = Code39Reader;\n\nCode39Reader.prototype._toCounters = function(start, counter) {\n var self = this,\n numCounters = counter.length,\n end = self._row.length,\n isWhite = !self._row[start],\n i,\n counterPos = 0;\n\n ArrayHelper.init(counter, 0);\n\n for ( i = start; i < end; i++) {\n if (self._row[i] ^ isWhite) {\n counter[counterPos]++;\n } else {\n counterPos++;\n if (counterPos === numCounters) {\n break;\n } else {\n counter[counterPos] = 1;\n isWhite = !isWhite;\n }\n }\n }\n\n return counter;\n};\n\nCode39Reader.prototype._decode = function() {\n var self = this,\n counters = [0, 0, 0, 0, 0, 0, 0, 0, 0],\n result = [],\n start = self._findStart(),\n decodedChar,\n lastStart,\n pattern,\n nextStart;\n\n if (!start) {\n return null;\n }\n nextStart = self._nextSet(self._row, start.end);\n\n do {\n counters = self._toCounters(nextStart, counters);\n pattern = self._toPattern(counters);\n if (pattern < 0) {\n return null;\n }\n decodedChar = self._patternToChar(pattern);\n if (decodedChar < 0){\n return null;\n }\n result.push(decodedChar);\n lastStart = nextStart;\n nextStart += ArrayHelper.sum(counters);\n nextStart = self._nextSet(self._row, nextStart);\n } while (decodedChar !== '*');\n result.pop();\n\n if (!result.length) {\n return null;\n }\n\n if (!self._verifyTrailingWhitespace(lastStart, nextStart, counters)) {\n return null;\n }\n\n return {\n code: result.join(\"\"),\n start: start.start,\n end: nextStart,\n startInfo: start,\n decodedCodes: result\n };\n};\n\nCode39Reader.prototype._verifyTrailingWhitespace = function(lastStart, nextStart, counters) {\n var trailingWhitespaceEnd,\n patternSize = ArrayHelper.sum(counters);\n\n trailingWhitespaceEnd = nextStart - lastStart - patternSize;\n if ((trailingWhitespaceEnd * 3) >= patternSize) {\n return true;\n }\n return false;\n};\n\nCode39Reader.prototype._patternToChar = function(pattern) {\n var i,\n self = this;\n\n for (i = 0; i < self.CHARACTER_ENCODINGS.length; i++) {\n if (self.CHARACTER_ENCODINGS[i] === pattern) {\n return String.fromCharCode(self.ALPHABET[i]);\n }\n }\n};\n\nCode39Reader.prototype._findNextWidth = function(counters, current) {\n var i,\n minWidth = Number.MAX_VALUE;\n\n for (i = 0; i < counters.length; i++) {\n if (counters[i] < minWidth && counters[i] > current) {\n minWidth = counters[i];\n }\n }\n\n return minWidth;\n};\n\nCode39Reader.prototype._toPattern = function(counters) {\n var numCounters = counters.length,\n maxNarrowWidth = 0,\n numWideBars = numCounters,\n wideBarWidth = 0,\n self = this,\n pattern,\n i;\n\n while (numWideBars > 3) {\n maxNarrowWidth = self._findNextWidth(counters, maxNarrowWidth);\n numWideBars = 0;\n pattern = 0;\n for (i = 0; i < numCounters; i++) {\n if (counters[i] > maxNarrowWidth) {\n pattern |= 1 << (numCounters - 1 - i);\n numWideBars++;\n wideBarWidth += counters[i];\n }\n }\n\n if (numWideBars === 3) {\n for (i = 0; i < numCounters && numWideBars > 0; i++) {\n if (counters[i] > maxNarrowWidth) {\n numWideBars--;\n if ((counters[i] * 2) >= wideBarWidth) {\n return -1;\n }\n }\n }\n return pattern;\n }\n }\n return -1;\n};\n\nCode39Reader.prototype._findStart = function() {\n var self = this,\n offset = self._nextSet(self._row),\n patternStart = offset,\n counter = [0, 0, 0, 0, 0, 0, 0, 0, 0],\n counterPos = 0,\n isWhite = false,\n i,\n j,\n whiteSpaceMustStart;\n\n for ( i = offset; i < self._row.length; i++) {\n if (self._row[i] ^ isWhite) {\n counter[counterPos]++;\n } else {\n if (counterPos === counter.length - 1) {\n // find start pattern\n if (self._toPattern(counter) === self.ASTERISK) {\n whiteSpaceMustStart = Math.floor(Math.max(0, patternStart - ((i - patternStart) / 4)));\n if (self._matchRange(whiteSpaceMustStart, patternStart, 0)) {\n return {\n start: patternStart,\n end: i\n };\n }\n }\n\n patternStart += counter[0] + counter[1];\n for ( j = 0; j < 7; j++) {\n counter[j] = counter[j + 2];\n }\n counter[7] = 0;\n counter[8] = 0;\n counterPos--;\n } else {\n counterPos++;\n }\n counter[counterPos] = 1;\n isWhite = !isWhite;\n }\n }\n return null;\n};\n\nexport default Code39Reader;\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/code_39_reader.js\n **/","import Code39Reader from './code_39_reader';\n\nfunction Code39VINReader() {\n Code39Reader.call(this);\n}\n\nvar patterns = {\n IOQ: /[IOQ]/g,\n AZ09: /[A-Z0-9]{17}/\n};\n\nCode39VINReader.prototype = Object.create(Code39Reader.prototype);\nCode39VINReader.prototype.constructor = Code39VINReader;\n\n// Cribbed from:\n// /~https://github.com/zxing/zxing/blob/master/core/src/main/java/com/google/zxing/client/result/VINResultParser.java\nCode39VINReader.prototype._decode = function() {\n var result = Code39Reader.prototype._decode.apply(this);\n if (!result) {\n return null;\n }\n\n var code = result.code;\n\n if (!code) {\n return;\n }\n\n code = code.replace(patterns.IOQ, '');\n\n if (!code.match(patterns.AZ09)) {\n console.log('Failed AZ09 pattern code:', code);\n return null;\n }\n\n if (!this._checkChecksum(code)) {\n return null;\n }\n\n result.code = code;\n return result;\n};\n\nCode39VINReader.prototype._checkChecksum = function(code) {\n // TODO\n return !!code;\n};\n\nexport default Code39VINReader;\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/code_39_vin_reader.js\n **/","import BarcodeReader from './barcode_reader';\n\nfunction CodabarReader() {\n BarcodeReader.call(this);\n this._counters = [];\n}\n\nvar properties = {\n ALPHABETH_STRING: {value: \"0123456789-$:/.+ABCD\"},\n ALPHABET: {value: [48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 45, 36, 58, 47, 46, 43, 65, 66, 67, 68]},\n CHARACTER_ENCODINGS: {value: [0x003, 0x006, 0x009, 0x060, 0x012, 0x042, 0x021, 0x024, 0x030, 0x048, 0x00c, 0x018,\n 0x045, 0x051, 0x054, 0x015, 0x01A, 0x029, 0x00B, 0x00E]},\n START_END: {value: [0x01A, 0x029, 0x00B, 0x00E]},\n MIN_ENCODED_CHARS: {value: 4},\n MAX_ACCEPTABLE: {value: 2.0},\n PADDING: {value: 1.5},\n FORMAT: {value: \"codabar\", writeable: false}\n};\n\nCodabarReader.prototype = Object.create(BarcodeReader.prototype, properties);\nCodabarReader.prototype.constructor = CodabarReader;\n\nCodabarReader.prototype._decode = function() {\n var self = this,\n result = [],\n start,\n decodedChar,\n pattern,\n nextStart,\n end;\n\n this._counters = self._fillCounters();\n start = self._findStart();\n if (!start) {\n return null;\n }\n nextStart = start.startCounter;\n\n do {\n pattern = self._toPattern(nextStart);\n if (pattern < 0) {\n return null;\n }\n decodedChar = self._patternToChar(pattern);\n if (decodedChar < 0){\n return null;\n }\n result.push(decodedChar);\n nextStart += 8;\n if (result.length > 1 && self._isStartEnd(pattern)) {\n break;\n }\n } while (nextStart < self._counters.length);\n\n // verify end\n if ((result.length - 2) < self.MIN_ENCODED_CHARS || !self._isStartEnd(pattern)) {\n return null;\n }\n\n // verify end white space\n if (!self._verifyWhitespace(start.startCounter, nextStart - 8)){\n return null;\n }\n\n if (!self._validateResult(result, start.startCounter)){\n return null;\n }\n\n nextStart = nextStart > self._counters.length ? self._counters.length : nextStart;\n end = start.start + self._sumCounters(start.startCounter, nextStart - 8);\n\n return {\n code: result.join(\"\"),\n start: start.start,\n end: end,\n startInfo: start,\n decodedCodes: result\n };\n};\n\nCodabarReader.prototype._verifyWhitespace = function(startCounter, endCounter) {\n if ((startCounter - 1 <= 0)\n || this._counters[startCounter - 1] >= (this._calculatePatternLength(startCounter) / 2.0)) {\n if ((endCounter + 8 >= this._counters.length)\n || this._counters[endCounter + 7] >= (this._calculatePatternLength(endCounter) / 2.0)) {\n return true;\n }\n }\n return false;\n};\n\nCodabarReader.prototype._calculatePatternLength = function(offset) {\n var i,\n sum = 0;\n\n for (i = offset; i < offset + 7; i++) {\n sum += this._counters[i];\n }\n\n return sum;\n};\n\nCodabarReader.prototype._thresholdResultPattern = function(result, startCounter){\n var self = this,\n categorization = {\n space: {\n narrow: { size: 0, counts: 0, min: 0, max: Number.MAX_VALUE},\n wide: {size: 0, counts: 0, min: 0, max: Number.MAX_VALUE}\n },\n bar: {\n narrow: { size: 0, counts: 0, min: 0, max: Number.MAX_VALUE},\n wide: { size: 0, counts: 0, min: 0, max: Number.MAX_VALUE}\n }\n },\n kind,\n cat,\n i,\n j,\n pos = startCounter,\n pattern;\n\n for (i = 0; i < result.length; i++){\n pattern = self._charToPattern(result[i]);\n for (j = 6; j >= 0; j--) {\n kind = (j & 1) === 2 ? categorization.bar : categorization.space;\n cat = (pattern & 1) === 1 ? kind.wide : kind.narrow;\n cat.size += self._counters[pos + j];\n cat.counts++;\n pattern >>= 1;\n }\n pos += 8;\n }\n\n [\"space\", \"bar\"].forEach(function(key) {\n var kind = categorization[key];\n kind.wide.min = Math.floor((kind.narrow.size / kind.narrow.counts + kind.wide.size / kind.wide.counts) / 2);\n kind.narrow.max = Math.ceil(kind.wide.min);\n kind.wide.max = Math.ceil((kind.wide.size * self.MAX_ACCEPTABLE + self.PADDING) / kind.wide.counts);\n });\n\n return categorization;\n};\n\nCodabarReader.prototype._charToPattern = function(char) {\n var self = this,\n charCode = char.charCodeAt(0),\n i;\n\n for (i = 0; i < self.ALPHABET.length; i++) {\n if (self.ALPHABET[i] === charCode){\n return self.CHARACTER_ENCODINGS[i];\n }\n }\n return 0x0;\n};\n\nCodabarReader.prototype._validateResult = function(result, startCounter) {\n var self = this,\n thresholds = self._thresholdResultPattern(result, startCounter),\n i,\n j,\n kind,\n cat,\n size,\n pos = startCounter,\n pattern;\n\n for (i = 0; i < result.length; i++) {\n pattern = self._charToPattern(result[i]);\n for (j = 6; j >= 0; j--) {\n kind = (j & 1) === 0 ? thresholds.bar : thresholds.space;\n cat = (pattern & 1) === 1 ? kind.wide : kind.narrow;\n size = self._counters[pos + j];\n if (size < cat.min || size > cat.max) {\n return false;\n }\n pattern >>= 1;\n }\n pos += 8;\n }\n return true;\n};\n\nCodabarReader.prototype._patternToChar = function(pattern) {\n var i,\n self = this;\n\n for (i = 0; i < self.CHARACTER_ENCODINGS.length; i++) {\n if (self.CHARACTER_ENCODINGS[i] === pattern) {\n return String.fromCharCode(self.ALPHABET[i]);\n }\n }\n return -1;\n};\n\nCodabarReader.prototype._computeAlternatingThreshold = function(offset, end) {\n var i,\n min = Number.MAX_VALUE,\n max = 0,\n counter;\n\n for (i = offset; i < end; i += 2){\n counter = this._counters[i];\n if (counter > max) {\n max = counter;\n }\n if (counter < min) {\n min = counter;\n }\n }\n\n return ((min + max) / 2.0) | 0;\n};\n\nCodabarReader.prototype._toPattern = function(offset) {\n var numCounters = 7,\n end = offset + numCounters,\n barThreshold,\n spaceThreshold,\n bitmask = 1 << (numCounters - 1),\n pattern = 0,\n i,\n threshold;\n\n if (end > this._counters.length) {\n return -1;\n }\n\n barThreshold = this._computeAlternatingThreshold(offset, end);\n spaceThreshold = this._computeAlternatingThreshold(offset + 1, end);\n\n for (i = 0; i < numCounters; i++){\n threshold = (i & 1) === 0 ? barThreshold : spaceThreshold;\n if (this._counters[offset + i] > threshold) {\n pattern |= bitmask;\n }\n bitmask >>= 1;\n }\n\n return pattern;\n};\n\nCodabarReader.prototype._isStartEnd = function(pattern) {\n var i;\n\n for (i = 0; i < this.START_END.length; i++) {\n if (this.START_END[i] === pattern) {\n return true;\n }\n }\n return false;\n};\n\nCodabarReader.prototype._sumCounters = function(start, end) {\n var i,\n sum = 0;\n\n for (i = start; i < end; i++) {\n sum += this._counters[i];\n }\n return sum;\n};\n\nCodabarReader.prototype._findStart = function() {\n var self = this,\n i,\n pattern,\n start = self._nextUnset(self._row),\n end;\n\n for (i = 1; i < this._counters.length; i++) {\n pattern = self._toPattern(i);\n if (pattern !== -1 && self._isStartEnd(pattern)) {\n // TODO: Look for whitespace ahead\n start += self._sumCounters(0, i);\n end = start + self._sumCounters(i, i + 8);\n return {\n start: start,\n end: end,\n startCounter: i,\n endCounter: i + 8\n };\n }\n }\n};\n\nexport default CodabarReader;\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/codabar_reader.js\n **/","import EANReader from './ean_reader';\n\nfunction UPCReader() {\n EANReader.call(this);\n}\n\nvar properties = {\n FORMAT: {value: \"upc_a\", writeable: false}\n};\n\nUPCReader.prototype = Object.create(EANReader.prototype, properties);\nUPCReader.prototype.constructor = UPCReader;\n\nUPCReader.prototype._decode = function() {\n var result = EANReader.prototype._decode.call(this);\n\n console.log(\"result\", result);\n if (result && result.code && result.code.length === 13 && result.code.charAt(0) === \"0\") {\n result.code = result.code.substring(1);\n return result;\n }\n return null;\n};\n\nexport default UPCReader;\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/upc_reader.js\n **/","import EANReader from './ean_reader';\n\nfunction EAN8Reader() {\n EANReader.call(this);\n}\n\nvar properties = {\n FORMAT: {value: \"ean_8\", writeable: false}\n};\n\nEAN8Reader.prototype = Object.create(EANReader.prototype, properties);\nEAN8Reader.prototype.constructor = EAN8Reader;\n\nEAN8Reader.prototype._decodePayload = function(code, result, decodedCodes) {\n var i,\n self = this;\n\n for ( i = 0; i < 4; i++) {\n code = self._decodeCode(code.end, self.CODE_G_START);\n if (!code) {\n return null;\n }\n result.push(code.code);\n decodedCodes.push(code);\n }\n\n code = self._findPattern(self.MIDDLE_PATTERN, code.end, true, false);\n if (code === null) {\n return null;\n }\n decodedCodes.push(code);\n\n for ( i = 0; i < 4; i++) {\n code = self._decodeCode(code.end, self.CODE_G_START);\n if (!code) {\n return null;\n }\n decodedCodes.push(code);\n result.push(code.code);\n }\n\n return code;\n};\n\nexport default EAN8Reader;\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/ean_8_reader.js\n **/","import EANReader from './ean_reader';\n\nfunction UPCEReader() {\n EANReader.call(this);\n}\n\nvar properties = {\n CODE_FREQUENCY : {value: [\n [ 56, 52, 50, 49, 44, 38, 35, 42, 41, 37 ],\n [7, 11, 13, 14, 19, 25, 28, 21, 22, 26]]},\n STOP_PATTERN: { value: [1 / 6 * 7, 1 / 6 * 7, 1 / 6 * 7, 1 / 6 * 7, 1 / 6 * 7, 1 / 6 * 7]},\n FORMAT: {value: \"upc_e\", writeable: false}\n};\n\nUPCEReader.prototype = Object.create(EANReader.prototype, properties);\nUPCEReader.prototype.constructor = UPCEReader;\n\nUPCEReader.prototype._decodePayload = function(code, result, decodedCodes) {\n var i,\n self = this,\n codeFrequency = 0x0;\n\n for ( i = 0; i < 6; i++) {\n code = self._decodeCode(code.end);\n if (!code) {\n return null;\n }\n if (code.code >= self.CODE_G_START) {\n code.code = code.code - self.CODE_G_START;\n codeFrequency |= 1 << (5 - i);\n }\n result.push(code.code);\n decodedCodes.push(code);\n }\n if (!self._determineParity(codeFrequency, result)) {\n return null;\n }\n\n return code;\n};\n\nUPCEReader.prototype._determineParity = function(codeFrequency, result) {\n var self =this,\n i,\n nrSystem;\n\n for (nrSystem = 0; nrSystem < self.CODE_FREQUENCY.length; nrSystem++){\n for ( i = 0; i < self.CODE_FREQUENCY[nrSystem].length; i++) {\n if (codeFrequency === self.CODE_FREQUENCY[nrSystem][i]) {\n result.unshift(nrSystem);\n result.push(i);\n return true;\n }\n }\n }\n return false;\n};\n\nUPCEReader.prototype._convertToUPCA = function(result) {\n var upca = [result[0]],\n lastDigit = result[result.length - 2];\n\n if (lastDigit <= 2) {\n upca = upca.concat(result.slice(1, 3))\n .concat([lastDigit, 0, 0, 0, 0])\n .concat(result.slice(3, 6));\n } else if (lastDigit === 3) {\n upca = upca.concat(result.slice(1, 4))\n .concat([0 ,0, 0, 0, 0])\n .concat(result.slice(4,6));\n } else if (lastDigit === 4) {\n upca = upca.concat(result.slice(1, 5))\n .concat([0, 0, 0, 0, 0, result[5]]);\n } else {\n upca = upca.concat(result.slice(1, 6))\n .concat([0, 0, 0, 0, lastDigit]);\n }\n\n upca.push(result[result.length - 1]);\n return upca;\n};\n\nUPCEReader.prototype._checksum = function(result) {\n return EANReader.prototype._checksum.call(this, this._convertToUPCA(result));\n};\n\nUPCEReader.prototype._findEnd = function(offset, isWhite) {\n isWhite = true;\n return EANReader.prototype._findEnd.call(this, offset, isWhite);\n};\n\nUPCEReader.prototype._verifyTrailingWhitespace = function(endInfo) {\n var self = this,\n trailingWhitespaceEnd;\n\n trailingWhitespaceEnd = endInfo.end + ((endInfo.end - endInfo.start)/2);\n if (trailingWhitespaceEnd < self._row.length) {\n if (self._matchRange(endInfo.end, trailingWhitespaceEnd, 0)) {\n return endInfo;\n }\n }\n};\n\nexport default UPCEReader;\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/upc_e_reader.js\n **/","import BarcodeReader from './barcode_reader';\nconst merge = require('lodash/object/merge');\n\nfunction I2of5Reader(opts) {\n opts = merge(getDefaulConfig(), opts);\n BarcodeReader.call(this, opts);\n this.barSpaceRatio = [1, 1];\n if (opts.normalizeBarSpaceWidth) {\n this.SINGLE_CODE_ERROR = 0.38;\n this.AVG_CODE_ERROR = 0.09;\n }\n}\n\nfunction getDefaulConfig() {\n var config = {};\n\n Object.keys(I2of5Reader.CONFIG_KEYS).forEach(function(key) {\n config[key] = I2of5Reader.CONFIG_KEYS[key]['default'];\n });\n return config;\n}\n\nvar N = 1,\n W = 3,\n properties = {\n MODULO : {value: 10},\n START_PATTERN : {value: [N*2.5, N*2.5, N*2.5, N*2.5]},\n STOP_PATTERN : {value: [N*2, N*2, W*2]},\n CODE_PATTERN : {value: [\n [N, N, W, W, N],\n [W, N, N, N, W],\n [N, W, N, N, W],\n [W, W, N, N, N],\n [N, N, W, N, W],\n [W, N, W, N, N],\n [N, W, W, N, N],\n [N, N, N, W, W],\n [W, N, N, W, N],\n [N, W, N, W, N]\n ]},\n SINGLE_CODE_ERROR: {value: 0.78, writable: true},\n AVG_CODE_ERROR: {value: 0.38, writable: true},\n MAX_CORRECTION_FACTOR: {value: 5},\n FORMAT: {value: \"i2of5\"}\n};\n\nI2of5Reader.prototype = Object.create(BarcodeReader.prototype, properties);\nI2of5Reader.prototype.constructor = I2of5Reader;\n\nI2of5Reader.prototype._matchPattern = function(counter, code) {\n if (this.config.normalizeBarSpaceWidth) {\n var i,\n counterSum = [0, 0],\n codeSum = [0, 0],\n correction = [0, 0],\n correctionRatio = this.MAX_CORRECTION_FACTOR,\n correctionRatioInverse = 1 / correctionRatio;\n\n for (i = 0; i < counter.length; i++) {\n counterSum[i % 2] += counter[i];\n codeSum[i % 2] += code[i];\n }\n correction[0] = codeSum[0] / counterSum[0];\n correction[1] = codeSum[1] / counterSum[1];\n\n correction[0] = Math.max(Math.min(correction[0], correctionRatio), correctionRatioInverse);\n correction[1] = Math.max(Math.min(correction[1], correctionRatio), correctionRatioInverse);\n this.barSpaceRatio = correction;\n for (i = 0; i < counter.length; i++) {\n counter[i] *= this.barSpaceRatio[i % 2];\n }\n }\n return BarcodeReader.prototype._matchPattern.call(this, counter, code);\n};\n\nI2of5Reader.prototype._findPattern = function(pattern, offset, isWhite, tryHarder) {\n var counter = [],\n self = this,\n i,\n counterPos = 0,\n bestMatch = {\n error : Number.MAX_VALUE,\n code : -1,\n start : 0,\n end : 0\n },\n error,\n j,\n sum,\n normalized,\n epsilon = self.AVG_CODE_ERROR;\n\n isWhite = isWhite || false;\n tryHarder = tryHarder || false;\n\n if (!offset) {\n offset = self._nextSet(self._row);\n }\n\n for ( i = 0; i < pattern.length; i++) {\n counter[i] = 0;\n }\n\n for ( i = offset; i < self._row.length; i++) {\n if (self._row[i] ^ isWhite) {\n counter[counterPos]++;\n } else {\n if (counterPos === counter.length - 1) {\n sum = 0;\n for ( j = 0; j < counter.length; j++) {\n sum += counter[j];\n }\n normalized = self._normalize(counter);\n if (normalized) {\n error = self._matchPattern(normalized, pattern);\n\n if (error < epsilon) {\n bestMatch.error = error;\n bestMatch.start = i - sum;\n bestMatch.end = i;\n return bestMatch;\n }\n }\n if (tryHarder) {\n for (j = 0; j < counter.length - 2; j++) {\n counter[j] = counter[j + 2];\n }\n counter[counter.length - 2] = 0;\n counter[counter.length - 1] = 0;\n counterPos--;\n } else {\n return null;\n }\n } else {\n counterPos++;\n }\n counter[counterPos] = 1;\n isWhite = !isWhite;\n }\n }\n return null;\n};\n\nI2of5Reader.prototype._findStart = function() {\n var self = this,\n leadingWhitespaceStart,\n offset = self._nextSet(self._row),\n startInfo,\n narrowBarWidth = 1;\n\n while(!startInfo) {\n startInfo = self._findPattern(self.START_PATTERN, offset, false, true);\n if (!startInfo) {\n return null;\n }\n narrowBarWidth = Math.floor((startInfo.end - startInfo.start) / 4);\n leadingWhitespaceStart = startInfo.start - narrowBarWidth*10;\n if (leadingWhitespaceStart >= 0) {\n if (self._matchRange(leadingWhitespaceStart, startInfo.start, 0)) {\n return startInfo;\n }\n }\n offset = startInfo.end;\n startInfo = null;\n }\n};\n\nI2of5Reader.prototype._verifyTrailingWhitespace = function(endInfo) {\n var self = this,\n trailingWhitespaceEnd;\n\n trailingWhitespaceEnd = endInfo.end + ((endInfo.end - endInfo.start) / 2);\n if (trailingWhitespaceEnd < self._row.length) {\n if (self._matchRange(endInfo.end, trailingWhitespaceEnd, 0)) {\n return endInfo;\n }\n }\n return null;\n};\n\nI2of5Reader.prototype._findEnd = function() {\n var self = this,\n endInfo,\n tmp;\n\n self._row.reverse();\n endInfo = self._findPattern(self.STOP_PATTERN);\n self._row.reverse();\n\n if (endInfo === null) {\n return null;\n }\n\n // reverse numbers\n tmp = endInfo.start;\n endInfo.start = self._row.length - endInfo.end;\n endInfo.end = self._row.length - tmp;\n\n return endInfo !== null ? self._verifyTrailingWhitespace(endInfo) : null;\n};\n\nI2of5Reader.prototype._decodePair = function(counterPair) {\n var i,\n code,\n codes = [],\n self = this;\n\n for (i = 0; i < counterPair.length; i++) {\n code = self._decodeCode(counterPair[i]);\n if (!code) {\n return null;\n }\n codes.push(code);\n }\n return codes;\n};\n\nI2of5Reader.prototype._decodeCode = function(counter) {\n var j,\n self = this,\n sum = 0,\n normalized,\n error,\n epsilon = self.AVG_CODE_ERROR,\n code,\n bestMatch = {\n error : Number.MAX_VALUE,\n code : -1,\n start : 0,\n end : 0\n };\n\n for ( j = 0; j < counter.length; j++) {\n sum += counter[j];\n }\n normalized = self._normalize(counter);\n if (normalized) {\n for (code = 0; code < self.CODE_PATTERN.length; code++) {\n error = self._matchPattern(normalized, self.CODE_PATTERN[code]);\n if (error < bestMatch.error) {\n bestMatch.code = code;\n bestMatch.error = error;\n }\n }\n if (bestMatch.error < epsilon) {\n return bestMatch;\n }\n }\n return null;\n};\n\nI2of5Reader.prototype._decodePayload = function(counters, result, decodedCodes) {\n var i,\n self = this,\n pos = 0,\n counterLength = counters.length,\n counterPair = [[0, 0, 0, 0, 0], [0, 0, 0, 0, 0]],\n codes;\n\n while (pos < counterLength) {\n for (i = 0; i < 5; i++) {\n counterPair[0][i] = counters[pos]*this.barSpaceRatio[0];\n counterPair[1][i] = counters[pos + 1]*this.barSpaceRatio[1];\n pos += 2;\n }\n codes = self._decodePair(counterPair);\n if (!codes) {\n return null;\n }\n for (i = 0; i < codes.length; i++) {\n result.push(codes[i].code + \"\");\n decodedCodes.push(codes[i]);\n }\n }\n return codes;\n};\n\nI2of5Reader.prototype._verifyCounterLength = function(counters) {\n return (counters.length % 10 === 0);\n};\n\nI2of5Reader.prototype._decode = function() {\n var startInfo,\n endInfo,\n self = this,\n code,\n result = [],\n decodedCodes = [],\n counters;\n\n startInfo = self._findStart();\n if (!startInfo) {\n return null;\n }\n decodedCodes.push(startInfo);\n\n endInfo = self._findEnd();\n if (!endInfo) {\n return null;\n }\n\n counters = self._fillCounters(startInfo.end, endInfo.start, false);\n if (!self._verifyCounterLength(counters)) {\n return null;\n }\n code = self._decodePayload(counters, result, decodedCodes);\n if (!code) {\n return null;\n }\n if (result.length % 2 !== 0 ||\n result.length < 6) {\n return null;\n }\n\n decodedCodes.push(endInfo);\n return {\n code : result.join(\"\"),\n start : startInfo.start,\n end : endInfo.end,\n startInfo : startInfo,\n decodedCodes : decodedCodes\n };\n};\n\nI2of5Reader.CONFIG_KEYS = {\n normalizeBarSpaceWidth: {\n 'type': 'boolean',\n 'default': false,\n 'description': 'If true, the reader tries to normalize the' +\n 'width-difference between bars and spaces'\n }\n};\n\nexport default I2of5Reader;\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/i2of5_reader.js\n **/","var baseMerge = require('../internal/baseMerge'),\n createAssigner = require('../internal/createAssigner');\n\n/**\n * Recursively merges own enumerable properties of the source object(s), that\n * don't resolve to `undefined` into the destination object. Subsequent sources\n * overwrite property assignments of previous sources. If `customizer` is\n * provided it's invoked to produce the merged values of the destination and\n * source properties. If `customizer` returns `undefined` merging is handled\n * by the method instead. The `customizer` is bound to `thisArg` and invoked\n * with five arguments: (objectValue, sourceValue, key, object, source).\n *\n * @static\n * @memberOf _\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} [sources] The source objects.\n * @param {Function} [customizer] The function to customize assigned values.\n * @param {*} [thisArg] The `this` binding of `customizer`.\n * @returns {Object} Returns `object`.\n * @example\n *\n * var users = {\n * 'data': [{ 'user': 'barney' }, { 'user': 'fred' }]\n * };\n *\n * var ages = {\n * 'data': [{ 'age': 36 }, { 'age': 40 }]\n * };\n *\n * _.merge(users, ages);\n * // => { 'data': [{ 'user': 'barney', 'age': 36 }, { 'user': 'fred', 'age': 40 }] }\n *\n * // using a customizer callback\n * var object = {\n * 'fruits': ['apple'],\n * 'vegetables': ['beet']\n * };\n *\n * var other = {\n * 'fruits': ['banana'],\n * 'vegetables': ['carrot']\n * };\n *\n * _.merge(object, other, function(a, b) {\n * if (_.isArray(a)) {\n * return a.concat(b);\n * }\n * });\n * // => { 'fruits': ['apple', 'banana'], 'vegetables': ['beet', 'carrot'] }\n */\nvar merge = createAssigner(baseMerge);\n\nmodule.exports = merge;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/object/merge.js\n ** module id = 37\n ** module chunks = 0\n **/","var arrayEach = require('./arrayEach'),\n baseMergeDeep = require('./baseMergeDeep'),\n isArray = require('../lang/isArray'),\n isArrayLike = require('./isArrayLike'),\n isObject = require('../lang/isObject'),\n isObjectLike = require('./isObjectLike'),\n isTypedArray = require('../lang/isTypedArray'),\n keys = require('../object/keys');\n\n/**\n * The base implementation of `_.merge` without support for argument juggling,\n * multiple sources, and `this` binding `customizer` functions.\n *\n * @private\n * @param {Object} object The destination object.\n * @param {Object} source The source object.\n * @param {Function} [customizer] The function to customize merged values.\n * @param {Array} [stackA=[]] Tracks traversed source objects.\n * @param {Array} [stackB=[]] Associates values with source counterparts.\n * @returns {Object} Returns `object`.\n */\nfunction baseMerge(object, source, customizer, stackA, stackB) {\n if (!isObject(object)) {\n return object;\n }\n var isSrcArr = isArrayLike(source) && (isArray(source) || isTypedArray(source)),\n props = isSrcArr ? undefined : keys(source);\n\n arrayEach(props || source, function(srcValue, key) {\n if (props) {\n key = srcValue;\n srcValue = source[key];\n }\n if (isObjectLike(srcValue)) {\n stackA || (stackA = []);\n stackB || (stackB = []);\n baseMergeDeep(object, source, key, baseMerge, customizer, stackA, stackB);\n }\n else {\n var value = object[key],\n result = customizer ? customizer(value, srcValue, key, object, source) : undefined,\n isCommon = result === undefined;\n\n if (isCommon) {\n result = srcValue;\n }\n if ((result !== undefined || (isSrcArr && !(key in object))) &&\n (isCommon || (result === result ? (result !== value) : (value === value)))) {\n object[key] = result;\n }\n }\n });\n return object;\n}\n\nmodule.exports = baseMerge;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/internal/baseMerge.js\n ** module id = 38\n ** module chunks = 0\n **/","/**\n * A specialized version of `_.forEach` for arrays without support for callback\n * shorthands and `this` binding.\n *\n * @private\n * @param {Array} array The array to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Array} Returns `array`.\n */\nfunction arrayEach(array, iteratee) {\n var index = -1,\n length = array.length;\n\n while (++index < length) {\n if (iteratee(array[index], index, array) === false) {\n break;\n }\n }\n return array;\n}\n\nmodule.exports = arrayEach;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/internal/arrayEach.js\n ** module id = 39\n ** module chunks = 0\n **/","var arrayCopy = require('./arrayCopy'),\n isArguments = require('../lang/isArguments'),\n isArray = require('../lang/isArray'),\n isArrayLike = require('./isArrayLike'),\n isPlainObject = require('../lang/isPlainObject'),\n isTypedArray = require('../lang/isTypedArray'),\n toPlainObject = require('../lang/toPlainObject');\n\n/**\n * A specialized version of `baseMerge` for arrays and objects which performs\n * deep merges and tracks traversed objects enabling objects with circular\n * references to be merged.\n *\n * @private\n * @param {Object} object The destination object.\n * @param {Object} source The source object.\n * @param {string} key The key of the value to merge.\n * @param {Function} mergeFunc The function to merge values.\n * @param {Function} [customizer] The function to customize merged values.\n * @param {Array} [stackA=[]] Tracks traversed source objects.\n * @param {Array} [stackB=[]] Associates values with source counterparts.\n * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.\n */\nfunction baseMergeDeep(object, source, key, mergeFunc, customizer, stackA, stackB) {\n var length = stackA.length,\n srcValue = source[key];\n\n while (length--) {\n if (stackA[length] == srcValue) {\n object[key] = stackB[length];\n return;\n }\n }\n var value = object[key],\n result = customizer ? customizer(value, srcValue, key, object, source) : undefined,\n isCommon = result === undefined;\n\n if (isCommon) {\n result = srcValue;\n if (isArrayLike(srcValue) && (isArray(srcValue) || isTypedArray(srcValue))) {\n result = isArray(value)\n ? value\n : (isArrayLike(value) ? arrayCopy(value) : []);\n }\n else if (isPlainObject(srcValue) || isArguments(srcValue)) {\n result = isArguments(value)\n ? toPlainObject(value)\n : (isPlainObject(value) ? value : {});\n }\n else {\n isCommon = false;\n }\n }\n // Add the source value to the stack of traversed objects and associate\n // it with its merged value.\n stackA.push(srcValue);\n stackB.push(result);\n\n if (isCommon) {\n // Recursively merge objects and arrays (susceptible to call stack limits).\n object[key] = mergeFunc(result, srcValue, customizer, stackA, stackB);\n } else if (result === result ? (result !== value) : (value === value)) {\n object[key] = result;\n }\n}\n\nmodule.exports = baseMergeDeep;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/internal/baseMergeDeep.js\n ** module id = 40\n ** module chunks = 0\n **/","/**\n * Copies the values of `source` to `array`.\n *\n * @private\n * @param {Array} source The array to copy values from.\n * @param {Array} [array=[]] The array to copy values to.\n * @returns {Array} Returns `array`.\n */\nfunction arrayCopy(source, array) {\n var index = -1,\n length = source.length;\n\n array || (array = Array(length));\n while (++index < length) {\n array[index] = source[index];\n }\n return array;\n}\n\nmodule.exports = arrayCopy;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/internal/arrayCopy.js\n ** module id = 41\n ** module chunks = 0\n **/","var isArrayLike = require('../internal/isArrayLike'),\n isObjectLike = require('../internal/isObjectLike');\n\n/** Used for native method references. */\nvar objectProto = Object.prototype;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/** Native method references. */\nvar propertyIsEnumerable = objectProto.propertyIsEnumerable;\n\n/**\n * Checks if `value` is classified as an `arguments` object.\n *\n * @static\n * @memberOf _\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.\n * @example\n *\n * _.isArguments(function() { return arguments; }());\n * // => true\n *\n * _.isArguments([1, 2, 3]);\n * // => false\n */\nfunction isArguments(value) {\n return isObjectLike(value) && isArrayLike(value) &&\n hasOwnProperty.call(value, 'callee') && !propertyIsEnumerable.call(value, 'callee');\n}\n\nmodule.exports = isArguments;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/lang/isArguments.js\n ** module id = 42\n ** module chunks = 0\n **/","var getLength = require('./getLength'),\n isLength = require('./isLength');\n\n/**\n * Checks if `value` is array-like.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is array-like, else `false`.\n */\nfunction isArrayLike(value) {\n return value != null && isLength(getLength(value));\n}\n\nmodule.exports = isArrayLike;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/internal/isArrayLike.js\n ** module id = 43\n ** module chunks = 0\n **/","var baseProperty = require('./baseProperty');\n\n/**\n * Gets the \"length\" property value of `object`.\n *\n * **Note:** This function is used to avoid a [JIT bug](https://bugs.webkit.org/show_bug.cgi?id=142792)\n * that affects Safari on at least iOS 8.1-8.3 ARM64.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {*} Returns the \"length\" value.\n */\nvar getLength = baseProperty('length');\n\nmodule.exports = getLength;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/internal/getLength.js\n ** module id = 44\n ** module chunks = 0\n **/","/**\n * The base implementation of `_.property` without support for deep paths.\n *\n * @private\n * @param {string} key The key of the property to get.\n * @returns {Function} Returns the new function.\n */\nfunction baseProperty(key) {\n return function(object) {\n return object == null ? undefined : object[key];\n };\n}\n\nmodule.exports = baseProperty;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/internal/baseProperty.js\n ** module id = 45\n ** module chunks = 0\n **/","/**\n * Used as the [maximum length](http://ecma-international.org/ecma-262/6.0/#sec-number.max_safe_integer)\n * of an array-like value.\n */\nvar MAX_SAFE_INTEGER = 9007199254740991;\n\n/**\n * Checks if `value` is a valid array-like length.\n *\n * **Note:** This function is based on [`ToLength`](http://ecma-international.org/ecma-262/6.0/#sec-tolength).\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a valid length, else `false`.\n */\nfunction isLength(value) {\n return typeof value == 'number' && value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER;\n}\n\nmodule.exports = isLength;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/internal/isLength.js\n ** module id = 46\n ** module chunks = 0\n **/","/**\n * Checks if `value` is object-like.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is object-like, else `false`.\n */\nfunction isObjectLike(value) {\n return !!value && typeof value == 'object';\n}\n\nmodule.exports = isObjectLike;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/internal/isObjectLike.js\n ** module id = 47\n ** module chunks = 0\n **/","var getNative = require('../internal/getNative'),\n isLength = require('../internal/isLength'),\n isObjectLike = require('../internal/isObjectLike');\n\n/** `Object#toString` result references. */\nvar arrayTag = '[object Array]';\n\n/** Used for native method references. */\nvar objectProto = Object.prototype;\n\n/**\n * Used to resolve the [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)\n * of values.\n */\nvar objToString = objectProto.toString;\n\n/* Native method references for those with the same name as other `lodash` methods. */\nvar nativeIsArray = getNative(Array, 'isArray');\n\n/**\n * Checks if `value` is classified as an `Array` object.\n *\n * @static\n * @memberOf _\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.\n * @example\n *\n * _.isArray([1, 2, 3]);\n * // => true\n *\n * _.isArray(function() { return arguments; }());\n * // => false\n */\nvar isArray = nativeIsArray || function(value) {\n return isObjectLike(value) && isLength(value.length) && objToString.call(value) == arrayTag;\n};\n\nmodule.exports = isArray;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/lang/isArray.js\n ** module id = 48\n ** module chunks = 0\n **/","var isNative = require('../lang/isNative');\n\n/**\n * Gets the native function at `key` of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {string} key The key of the method to get.\n * @returns {*} Returns the function if it's native, else `undefined`.\n */\nfunction getNative(object, key) {\n var value = object == null ? undefined : object[key];\n return isNative(value) ? value : undefined;\n}\n\nmodule.exports = getNative;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/internal/getNative.js\n ** module id = 49\n ** module chunks = 0\n **/","var isFunction = require('./isFunction'),\n isObjectLike = require('../internal/isObjectLike');\n\n/** Used to detect host constructors (Safari > 5). */\nvar reIsHostCtor = /^\\[object .+?Constructor\\]$/;\n\n/** Used for native method references. */\nvar objectProto = Object.prototype;\n\n/** Used to resolve the decompiled source of functions. */\nvar fnToString = Function.prototype.toString;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/** Used to detect if a method is native. */\nvar reIsNative = RegExp('^' +\n fnToString.call(hasOwnProperty).replace(/[\\\\^$.*+?()[\\]{}|]/g, '\\\\$&')\n .replace(/hasOwnProperty|(function).*?(?=\\\\\\()| for .+?(?=\\\\\\])/g, '$1.*?') + '$'\n);\n\n/**\n * Checks if `value` is a native function.\n *\n * @static\n * @memberOf _\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a native function, else `false`.\n * @example\n *\n * _.isNative(Array.prototype.push);\n * // => true\n *\n * _.isNative(_);\n * // => false\n */\nfunction isNative(value) {\n if (value == null) {\n return false;\n }\n if (isFunction(value)) {\n return reIsNative.test(fnToString.call(value));\n }\n return isObjectLike(value) && reIsHostCtor.test(value);\n}\n\nmodule.exports = isNative;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/lang/isNative.js\n ** module id = 50\n ** module chunks = 0\n **/","var isObject = require('./isObject');\n\n/** `Object#toString` result references. */\nvar funcTag = '[object Function]';\n\n/** Used for native method references. */\nvar objectProto = Object.prototype;\n\n/**\n * Used to resolve the [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)\n * of values.\n */\nvar objToString = objectProto.toString;\n\n/**\n * Checks if `value` is classified as a `Function` object.\n *\n * @static\n * @memberOf _\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.\n * @example\n *\n * _.isFunction(_);\n * // => true\n *\n * _.isFunction(/abc/);\n * // => false\n */\nfunction isFunction(value) {\n // The use of `Object#toString` avoids issues with the `typeof` operator\n // in older versions of Chrome and Safari which return 'function' for regexes\n // and Safari 8 which returns 'object' for typed array constructors.\n return isObject(value) && objToString.call(value) == funcTag;\n}\n\nmodule.exports = isFunction;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/lang/isFunction.js\n ** module id = 51\n ** module chunks = 0\n **/","/**\n * Checks if `value` is the [language type](https://es5.github.io/#x8) of `Object`.\n * (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)\n *\n * @static\n * @memberOf _\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an object, else `false`.\n * @example\n *\n * _.isObject({});\n * // => true\n *\n * _.isObject([1, 2, 3]);\n * // => true\n *\n * _.isObject(1);\n * // => false\n */\nfunction isObject(value) {\n // Avoid a V8 JIT bug in Chrome 19-20.\n // See https://code.google.com/p/v8/issues/detail?id=2291 for more details.\n var type = typeof value;\n return !!value && (type == 'object' || type == 'function');\n}\n\nmodule.exports = isObject;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/lang/isObject.js\n ** module id = 52\n ** module chunks = 0\n **/","var baseForIn = require('../internal/baseForIn'),\n isArguments = require('./isArguments'),\n isObjectLike = require('../internal/isObjectLike');\n\n/** `Object#toString` result references. */\nvar objectTag = '[object Object]';\n\n/** Used for native method references. */\nvar objectProto = Object.prototype;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/**\n * Used to resolve the [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)\n * of values.\n */\nvar objToString = objectProto.toString;\n\n/**\n * Checks if `value` is a plain object, that is, an object created by the\n * `Object` constructor or one with a `[[Prototype]]` of `null`.\n *\n * **Note:** This method assumes objects created by the `Object` constructor\n * have no inherited enumerable properties.\n *\n * @static\n * @memberOf _\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a plain object, else `false`.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * }\n *\n * _.isPlainObject(new Foo);\n * // => false\n *\n * _.isPlainObject([1, 2, 3]);\n * // => false\n *\n * _.isPlainObject({ 'x': 0, 'y': 0 });\n * // => true\n *\n * _.isPlainObject(Object.create(null));\n * // => true\n */\nfunction isPlainObject(value) {\n var Ctor;\n\n // Exit early for non `Object` objects.\n if (!(isObjectLike(value) && objToString.call(value) == objectTag && !isArguments(value)) ||\n (!hasOwnProperty.call(value, 'constructor') && (Ctor = value.constructor, typeof Ctor == 'function' && !(Ctor instanceof Ctor)))) {\n return false;\n }\n // IE < 9 iterates inherited properties before own properties. If the first\n // iterated property is an object's own property then there are no inherited\n // enumerable properties.\n var result;\n // In most environments an object's own properties are iterated before\n // its inherited properties. If the last iterated property is an object's\n // own property then there are no inherited enumerable properties.\n baseForIn(value, function(subValue, key) {\n result = key;\n });\n return result === undefined || hasOwnProperty.call(value, result);\n}\n\nmodule.exports = isPlainObject;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/lang/isPlainObject.js\n ** module id = 53\n ** module chunks = 0\n **/","var baseFor = require('./baseFor'),\n keysIn = require('../object/keysIn');\n\n/**\n * The base implementation of `_.forIn` without support for callback\n * shorthands and `this` binding.\n *\n * @private\n * @param {Object} object The object to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Object} Returns `object`.\n */\nfunction baseForIn(object, iteratee) {\n return baseFor(object, iteratee, keysIn);\n}\n\nmodule.exports = baseForIn;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/internal/baseForIn.js\n ** module id = 54\n ** module chunks = 0\n **/","var createBaseFor = require('./createBaseFor');\n\n/**\n * The base implementation of `baseForIn` and `baseForOwn` which iterates\n * over `object` properties returned by `keysFunc` invoking `iteratee` for\n * each property. Iteratee functions may exit iteration early by explicitly\n * returning `false`.\n *\n * @private\n * @param {Object} object The object to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @param {Function} keysFunc The function to get the keys of `object`.\n * @returns {Object} Returns `object`.\n */\nvar baseFor = createBaseFor();\n\nmodule.exports = baseFor;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/internal/baseFor.js\n ** module id = 55\n ** module chunks = 0\n **/","var toObject = require('./toObject');\n\n/**\n * Creates a base function for `_.forIn` or `_.forInRight`.\n *\n * @private\n * @param {boolean} [fromRight] Specify iterating from right to left.\n * @returns {Function} Returns the new base function.\n */\nfunction createBaseFor(fromRight) {\n return function(object, iteratee, keysFunc) {\n var iterable = toObject(object),\n props = keysFunc(object),\n length = props.length,\n index = fromRight ? length : -1;\n\n while ((fromRight ? index-- : ++index < length)) {\n var key = props[index];\n if (iteratee(iterable[key], key, iterable) === false) {\n break;\n }\n }\n return object;\n };\n}\n\nmodule.exports = createBaseFor;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/internal/createBaseFor.js\n ** module id = 56\n ** module chunks = 0\n **/","var isObject = require('../lang/isObject');\n\n/**\n * Converts `value` to an object if it's not one.\n *\n * @private\n * @param {*} value The value to process.\n * @returns {Object} Returns the object.\n */\nfunction toObject(value) {\n return isObject(value) ? value : Object(value);\n}\n\nmodule.exports = toObject;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/internal/toObject.js\n ** module id = 57\n ** module chunks = 0\n **/","var isArguments = require('../lang/isArguments'),\n isArray = require('../lang/isArray'),\n isIndex = require('../internal/isIndex'),\n isLength = require('../internal/isLength'),\n isObject = require('../lang/isObject');\n\n/** Used for native method references. */\nvar objectProto = Object.prototype;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/**\n * Creates an array of the own and inherited enumerable property names of `object`.\n *\n * **Note:** Non-object values are coerced to objects.\n *\n * @static\n * @memberOf _\n * @category Object\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.keysIn(new Foo);\n * // => ['a', 'b', 'c'] (iteration order is not guaranteed)\n */\nfunction keysIn(object) {\n if (object == null) {\n return [];\n }\n if (!isObject(object)) {\n object = Object(object);\n }\n var length = object.length;\n length = (length && isLength(length) &&\n (isArray(object) || isArguments(object)) && length) || 0;\n\n var Ctor = object.constructor,\n index = -1,\n isProto = typeof Ctor == 'function' && Ctor.prototype === object,\n result = Array(length),\n skipIndexes = length > 0;\n\n while (++index < length) {\n result[index] = (index + '');\n }\n for (var key in object) {\n if (!(skipIndexes && isIndex(key, length)) &&\n !(key == 'constructor' && (isProto || !hasOwnProperty.call(object, key)))) {\n result.push(key);\n }\n }\n return result;\n}\n\nmodule.exports = keysIn;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/object/keysIn.js\n ** module id = 58\n ** module chunks = 0\n **/","/** Used to detect unsigned integer values. */\nvar reIsUint = /^\\d+$/;\n\n/**\n * Used as the [maximum length](http://ecma-international.org/ecma-262/6.0/#sec-number.max_safe_integer)\n * of an array-like value.\n */\nvar MAX_SAFE_INTEGER = 9007199254740991;\n\n/**\n * Checks if `value` is a valid array-like index.\n *\n * @private\n * @param {*} value The value to check.\n * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index.\n * @returns {boolean} Returns `true` if `value` is a valid index, else `false`.\n */\nfunction isIndex(value, length) {\n value = (typeof value == 'number' || reIsUint.test(value)) ? +value : -1;\n length = length == null ? MAX_SAFE_INTEGER : length;\n return value > -1 && value % 1 == 0 && value < length;\n}\n\nmodule.exports = isIndex;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/internal/isIndex.js\n ** module id = 59\n ** module chunks = 0\n **/","var isLength = require('../internal/isLength'),\n isObjectLike = require('../internal/isObjectLike');\n\n/** `Object#toString` result references. */\nvar argsTag = '[object Arguments]',\n arrayTag = '[object Array]',\n boolTag = '[object Boolean]',\n dateTag = '[object Date]',\n errorTag = '[object Error]',\n funcTag = '[object Function]',\n mapTag = '[object Map]',\n numberTag = '[object Number]',\n objectTag = '[object Object]',\n regexpTag = '[object RegExp]',\n setTag = '[object Set]',\n stringTag = '[object String]',\n weakMapTag = '[object WeakMap]';\n\nvar arrayBufferTag = '[object ArrayBuffer]',\n float32Tag = '[object Float32Array]',\n float64Tag = '[object Float64Array]',\n int8Tag = '[object Int8Array]',\n int16Tag = '[object Int16Array]',\n int32Tag = '[object Int32Array]',\n uint8Tag = '[object Uint8Array]',\n uint8ClampedTag = '[object Uint8ClampedArray]',\n uint16Tag = '[object Uint16Array]',\n uint32Tag = '[object Uint32Array]';\n\n/** Used to identify `toStringTag` values of typed arrays. */\nvar typedArrayTags = {};\ntypedArrayTags[float32Tag] = typedArrayTags[float64Tag] =\ntypedArrayTags[int8Tag] = typedArrayTags[int16Tag] =\ntypedArrayTags[int32Tag] = typedArrayTags[uint8Tag] =\ntypedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] =\ntypedArrayTags[uint32Tag] = true;\ntypedArrayTags[argsTag] = typedArrayTags[arrayTag] =\ntypedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] =\ntypedArrayTags[dateTag] = typedArrayTags[errorTag] =\ntypedArrayTags[funcTag] = typedArrayTags[mapTag] =\ntypedArrayTags[numberTag] = typedArrayTags[objectTag] =\ntypedArrayTags[regexpTag] = typedArrayTags[setTag] =\ntypedArrayTags[stringTag] = typedArrayTags[weakMapTag] = false;\n\n/** Used for native method references. */\nvar objectProto = Object.prototype;\n\n/**\n * Used to resolve the [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)\n * of values.\n */\nvar objToString = objectProto.toString;\n\n/**\n * Checks if `value` is classified as a typed array.\n *\n * @static\n * @memberOf _\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.\n * @example\n *\n * _.isTypedArray(new Uint8Array);\n * // => true\n *\n * _.isTypedArray([]);\n * // => false\n */\nfunction isTypedArray(value) {\n return isObjectLike(value) && isLength(value.length) && !!typedArrayTags[objToString.call(value)];\n}\n\nmodule.exports = isTypedArray;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/lang/isTypedArray.js\n ** module id = 60\n ** module chunks = 0\n **/","var baseCopy = require('../internal/baseCopy'),\n keysIn = require('../object/keysIn');\n\n/**\n * Converts `value` to a plain object flattening inherited enumerable\n * properties of `value` to own properties of the plain object.\n *\n * @static\n * @memberOf _\n * @category Lang\n * @param {*} value The value to convert.\n * @returns {Object} Returns the converted plain object.\n * @example\n *\n * function Foo() {\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.assign({ 'a': 1 }, new Foo);\n * // => { 'a': 1, 'b': 2 }\n *\n * _.assign({ 'a': 1 }, _.toPlainObject(new Foo));\n * // => { 'a': 1, 'b': 2, 'c': 3 }\n */\nfunction toPlainObject(value) {\n return baseCopy(value, keysIn(value));\n}\n\nmodule.exports = toPlainObject;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/lang/toPlainObject.js\n ** module id = 61\n ** module chunks = 0\n **/","/**\n * Copies properties of `source` to `object`.\n *\n * @private\n * @param {Object} source The object to copy properties from.\n * @param {Array} props The property names to copy.\n * @param {Object} [object={}] The object to copy properties to.\n * @returns {Object} Returns `object`.\n */\nfunction baseCopy(source, props, object) {\n object || (object = {});\n\n var index = -1,\n length = props.length;\n\n while (++index < length) {\n var key = props[index];\n object[key] = source[key];\n }\n return object;\n}\n\nmodule.exports = baseCopy;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/internal/baseCopy.js\n ** module id = 62\n ** module chunks = 0\n **/","var getNative = require('../internal/getNative'),\n isArrayLike = require('../internal/isArrayLike'),\n isObject = require('../lang/isObject'),\n shimKeys = require('../internal/shimKeys');\n\n/* Native method references for those with the same name as other `lodash` methods. */\nvar nativeKeys = getNative(Object, 'keys');\n\n/**\n * Creates an array of the own enumerable property names of `object`.\n *\n * **Note:** Non-object values are coerced to objects. See the\n * [ES spec](http://ecma-international.org/ecma-262/6.0/#sec-object.keys)\n * for more details.\n *\n * @static\n * @memberOf _\n * @category Object\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.keys(new Foo);\n * // => ['a', 'b'] (iteration order is not guaranteed)\n *\n * _.keys('hi');\n * // => ['0', '1']\n */\nvar keys = !nativeKeys ? shimKeys : function(object) {\n var Ctor = object == null ? undefined : object.constructor;\n if ((typeof Ctor == 'function' && Ctor.prototype === object) ||\n (typeof object != 'function' && isArrayLike(object))) {\n return shimKeys(object);\n }\n return isObject(object) ? nativeKeys(object) : [];\n};\n\nmodule.exports = keys;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/object/keys.js\n ** module id = 63\n ** module chunks = 0\n **/","var isArguments = require('../lang/isArguments'),\n isArray = require('../lang/isArray'),\n isIndex = require('./isIndex'),\n isLength = require('./isLength'),\n keysIn = require('../object/keysIn');\n\n/** Used for native method references. */\nvar objectProto = Object.prototype;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/**\n * A fallback implementation of `Object.keys` which creates an array of the\n * own enumerable property names of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n */\nfunction shimKeys(object) {\n var props = keysIn(object),\n propsLength = props.length,\n length = propsLength && object.length;\n\n var allowIndexes = !!length && isLength(length) &&\n (isArray(object) || isArguments(object));\n\n var index = -1,\n result = [];\n\n while (++index < propsLength) {\n var key = props[index];\n if ((allowIndexes && isIndex(key, length)) || hasOwnProperty.call(object, key)) {\n result.push(key);\n }\n }\n return result;\n}\n\nmodule.exports = shimKeys;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/internal/shimKeys.js\n ** module id = 64\n ** module chunks = 0\n **/","var bindCallback = require('./bindCallback'),\n isIterateeCall = require('./isIterateeCall'),\n restParam = require('../function/restParam');\n\n/**\n * Creates a `_.assign`, `_.defaults`, or `_.merge` function.\n *\n * @private\n * @param {Function} assigner The function to assign values.\n * @returns {Function} Returns the new assigner function.\n */\nfunction createAssigner(assigner) {\n return restParam(function(object, sources) {\n var index = -1,\n length = object == null ? 0 : sources.length,\n customizer = length > 2 ? sources[length - 2] : undefined,\n guard = length > 2 ? sources[2] : undefined,\n thisArg = length > 1 ? sources[length - 1] : undefined;\n\n if (typeof customizer == 'function') {\n customizer = bindCallback(customizer, thisArg, 5);\n length -= 2;\n } else {\n customizer = typeof thisArg == 'function' ? thisArg : undefined;\n length -= (customizer ? 1 : 0);\n }\n if (guard && isIterateeCall(sources[0], sources[1], guard)) {\n customizer = length < 3 ? undefined : customizer;\n length = 1;\n }\n while (++index < length) {\n var source = sources[index];\n if (source) {\n assigner(object, source, customizer);\n }\n }\n return object;\n });\n}\n\nmodule.exports = createAssigner;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/internal/createAssigner.js\n ** module id = 65\n ** module chunks = 0\n **/","var identity = require('../utility/identity');\n\n/**\n * A specialized version of `baseCallback` which only supports `this` binding\n * and specifying the number of arguments to provide to `func`.\n *\n * @private\n * @param {Function} func The function to bind.\n * @param {*} thisArg The `this` binding of `func`.\n * @param {number} [argCount] The number of arguments to provide to `func`.\n * @returns {Function} Returns the callback.\n */\nfunction bindCallback(func, thisArg, argCount) {\n if (typeof func != 'function') {\n return identity;\n }\n if (thisArg === undefined) {\n return func;\n }\n switch (argCount) {\n case 1: return function(value) {\n return func.call(thisArg, value);\n };\n case 3: return function(value, index, collection) {\n return func.call(thisArg, value, index, collection);\n };\n case 4: return function(accumulator, value, index, collection) {\n return func.call(thisArg, accumulator, value, index, collection);\n };\n case 5: return function(value, other, key, object, source) {\n return func.call(thisArg, value, other, key, object, source);\n };\n }\n return function() {\n return func.apply(thisArg, arguments);\n };\n}\n\nmodule.exports = bindCallback;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/internal/bindCallback.js\n ** module id = 66\n ** module chunks = 0\n **/","/**\n * This method returns the first argument provided to it.\n *\n * @static\n * @memberOf _\n * @category Utility\n * @param {*} value Any value.\n * @returns {*} Returns `value`.\n * @example\n *\n * var object = { 'user': 'fred' };\n *\n * _.identity(object) === object;\n * // => true\n */\nfunction identity(value) {\n return value;\n}\n\nmodule.exports = identity;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/utility/identity.js\n ** module id = 67\n ** module chunks = 0\n **/","var isArrayLike = require('./isArrayLike'),\n isIndex = require('./isIndex'),\n isObject = require('../lang/isObject');\n\n/**\n * Checks if the provided arguments are from an iteratee call.\n *\n * @private\n * @param {*} value The potential iteratee value argument.\n * @param {*} index The potential iteratee index or key argument.\n * @param {*} object The potential iteratee object argument.\n * @returns {boolean} Returns `true` if the arguments are from an iteratee call, else `false`.\n */\nfunction isIterateeCall(value, index, object) {\n if (!isObject(object)) {\n return false;\n }\n var type = typeof index;\n if (type == 'number'\n ? (isArrayLike(object) && isIndex(index, object.length))\n : (type == 'string' && index in object)) {\n var other = object[index];\n return value === value ? (value === other) : (other !== other);\n }\n return false;\n}\n\nmodule.exports = isIterateeCall;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/internal/isIterateeCall.js\n ** module id = 68\n ** module chunks = 0\n **/","/** Used as the `TypeError` message for \"Functions\" methods. */\nvar FUNC_ERROR_TEXT = 'Expected a function';\n\n/* Native method references for those with the same name as other `lodash` methods. */\nvar nativeMax = Math.max;\n\n/**\n * Creates a function that invokes `func` with the `this` binding of the\n * created function and arguments from `start` and beyond provided as an array.\n *\n * **Note:** This method is based on the [rest parameter](https://developer.mozilla.org/Web/JavaScript/Reference/Functions/rest_parameters).\n *\n * @static\n * @memberOf _\n * @category Function\n * @param {Function} func The function to apply a rest parameter to.\n * @param {number} [start=func.length-1] The start position of the rest parameter.\n * @returns {Function} Returns the new function.\n * @example\n *\n * var say = _.restParam(function(what, names) {\n * return what + ' ' + _.initial(names).join(', ') +\n * (_.size(names) > 1 ? ', & ' : '') + _.last(names);\n * });\n *\n * say('hello', 'fred', 'barney', 'pebbles');\n * // => 'hello fred, barney, & pebbles'\n */\nfunction restParam(func, start) {\n if (typeof func != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n start = nativeMax(start === undefined ? (func.length - 1) : (+start || 0), 0);\n return function() {\n var args = arguments,\n index = -1,\n length = nativeMax(args.length - start, 0),\n rest = Array(length);\n\n while (++index < length) {\n rest[index] = args[start + index];\n }\n switch (start) {\n case 0: return func.call(this, rest);\n case 1: return func.call(this, args[0], rest);\n case 2: return func.call(this, args[0], args[1], rest);\n }\n var otherArgs = Array(start + 1);\n index = -1;\n while (++index < start) {\n otherArgs[index] = args[index];\n }\n otherArgs[start] = rest;\n return func.apply(this, otherArgs);\n };\n}\n\nmodule.exports = restParam;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/function/restParam.js\n ** module id = 69\n ** module chunks = 0\n **/","import CVUtils from './cv_utils';\n\nvar FrameGrabber = {};\n\nFrameGrabber.create = function(inputStream, canvas) {\n var _that = {},\n _streamConfig = inputStream.getConfig(),\n _video_size = CVUtils.imageRef(inputStream.getRealWidth(), inputStream.getRealHeight()),\n _canvasSize = inputStream.getCanvasSize(),\n _size = CVUtils.imageRef(inputStream.getWidth(), inputStream.getHeight()),\n topRight = inputStream.getTopRight(),\n _sx = topRight.x,\n _sy = topRight.y,\n _canvas,\n _ctx = null,\n _data = null;\n\n _canvas = canvas ? canvas : document.createElement(\"canvas\");\n _canvas.width = _canvasSize.x;\n _canvas.height = _canvasSize.y;\n _ctx = _canvas.getContext(\"2d\");\n _data = new Uint8Array(_size.x * _size.y);\n console.log(\"FrameGrabber\", JSON.stringify({\n size: _size,\n topRight: topRight,\n videoSize: _video_size,\n canvasSize: _canvasSize\n }));\n\n /**\n * Uses the given array as frame-buffer\n */\n _that.attachData = function(data) {\n _data = data;\n };\n\n /**\n * Returns the used frame-buffer\n */\n _that.getData = function() {\n return _data;\n };\n\n /**\n * Fetches a frame from the input-stream and puts into the frame-buffer.\n * The image-data is converted to gray-scale and then half-sampled if configured.\n */\n _that.grab = function() {\n var doHalfSample = _streamConfig.halfSample,\n frame = inputStream.getFrame(),\n ctxData;\n if (frame) {\n _ctx.drawImage(frame, 0, 0, _canvasSize.x, _canvasSize.y);\n ctxData = _ctx.getImageData(_sx, _sy, _size.x, _size.y).data;\n if(doHalfSample){\n CVUtils.grayAndHalfSampleFromCanvasData(ctxData, _size, _data);\n } else {\n CVUtils.computeGray(ctxData, _data, _streamConfig);\n }\n return true;\n } else {\n return false;\n }\n };\n\n _that.getSize = function() {\n return _size;\n };\n\n return _that;\n};\n\nexport default FrameGrabber;\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/frame_grabber.js\n **/","export default {\n inputStream: {\n name: \"Live\",\n type: \"LiveStream\",\n constraints: {\n width: 640,\n height: 480,\n minAspectRatio: 0,\n maxAspectRatio: 100,\n facing: \"environment\" // or user\n },\n area: {\n top: \"0%\",\n right: \"0%\",\n left: \"0%\",\n bottom: \"0%\"\n },\n singleChannel: false // true: only the red color-channel is read\n },\n tracking: false,\n debug: false,\n controls: false,\n locate: true,\n numOfWorkers: 4,\n visual: {\n show: true\n },\n decoder: {\n drawBoundingBox: false,\n showFrequency: false,\n drawScanline: false,\n showPattern: false,\n readers: [\n 'code_128_reader'\n ]\n },\n locator: {\n halfSample: true,\n patchSize: \"medium\", // x-small, small, medium, large, x-large\n showCanvas: false,\n showPatches: false,\n showFoundPatches: false,\n showSkeleton: false,\n showLabels: false,\n showPatchLabels: false,\n showRemainingPatchLabels: false,\n boxFromPatches: {\n showTransformed: false,\n showTransformedBox: false,\n showBB: false\n }\n }\n};\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/config.js\n **/","export default function() {\n var events = {};\n\n function getEvent(eventName) {\n if (!events[eventName]) {\n events[eventName] = {\n subscribers : []\n };\n }\n return events[eventName];\n }\n\n function clearEvents(){\n events = {};\n }\n\n function publishSubscription(subscription, data) {\n if (subscription.async) {\n setTimeout(function() {\n subscription.callback(data);\n }, 4);\n } else {\n subscription.callback(data);\n }\n }\n\n function subscribe(event, callback, async) {\n var subscription;\n\n if ( typeof callback === \"function\") {\n subscription = {\n callback : callback,\n async : async\n };\n } else {\n subscription = callback;\n if (!subscription.callback) {\n throw \"Callback was not specified on options\";\n }\n }\n\n getEvent(event).subscribers.push(subscription);\n }\n\n return {\n subscribe : function(event, callback, async) {\n return subscribe(event, callback, async);\n },\n publish : function(eventName, data) {\n var event = getEvent(eventName),\n subscribers = event.subscribers;\n\n event.subscribers = subscribers.filter(function(subscriber) {\n publishSubscription(subscriber, data);\n return !subscriber.once;\n });\n },\n once: function(event, callback, async) {\n subscribe(event, {\n callback: callback,\n async: async,\n once: true\n });\n },\n unsubscribe: function(eventName, callback) {\n var event;\n\n if (eventName) {\n event = getEvent(eventName);\n if (event && callback) {\n event.subscribers = event.subscribers.filter(function(subscriber){\n return subscriber.callback !== callback;\n });\n } else {\n event.subscribers = [];\n }\n } else {\n clearEvents();\n }\n }\n };\n}();\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/events.js\n **/","const merge = require('lodash/object/merge');\n\nvar streamRef,\n loadedDataHandler;\n\n/**\n * Wraps browser-specific getUserMedia\n * @param {Object} constraints\n * @param {Object} success Callback\n * @param {Object} failure Callback\n */\nfunction getUserMedia(constraints, success, failure) {\n if (typeof navigator.getUserMedia !== 'undefined') {\n navigator.getUserMedia(constraints, function (stream) {\n streamRef = stream;\n var videoSrc = (window.URL && window.URL.createObjectURL(stream)) || stream;\n success.apply(null, [videoSrc]);\n }, failure);\n } else {\n failure(new TypeError(\"getUserMedia not available\"));\n }\n}\n\nfunction loadedData(video, callback) {\n var attempts = 10;\n\n function checkVideo() {\n if (attempts > 0) {\n if (video.videoWidth > 0 && video.videoHeight > 0) {\n console.log(video.videoWidth + \"px x \" + video.videoHeight + \"px\");\n callback();\n } else {\n window.setTimeout(checkVideo, 500);\n }\n } else {\n callback('Unable to play video stream. Is webcam working?');\n }\n attempts--;\n }\n checkVideo();\n}\n\n/**\n * Tries to attach the camera-stream to a given video-element\n * and calls the callback function when the content is ready\n * @param {Object} constraints\n * @param {Object} video\n * @param {Object} callback\n */\nfunction initCamera(constraints, video, callback) {\n getUserMedia(constraints, function(src) {\n video.src = src;\n if (loadedDataHandler) {\n video.removeEventListener(\"loadeddata\", loadedDataHandler, false);\n }\n loadedDataHandler = loadedData.bind(null, video, callback);\n video.addEventListener('loadeddata', loadedDataHandler, false);\n video.play();\n }, function(e) {\n callback(e);\n });\n}\n\n/**\n * Normalizes the incoming constraints to satisfy the current browser\n * @param config\n * @param cb Callback which is called whenever constraints are created\n * @returns {*}\n */\nfunction normalizeConstraints(config, cb) {\n var constraints = {\n audio: false,\n video: true\n },\n videoConstraints = merge({\n width: 640,\n height: 480,\n minAspectRatio: 0,\n maxAspectRatio: 100,\n facing: \"environment\"\n }, config);\n\n if ( typeof MediaStreamTrack !== 'undefined' && typeof MediaStreamTrack.getSources !== 'undefined') {\n MediaStreamTrack.getSources(function(sourceInfos) {\n var videoSourceId;\n for (var i = 0; i < sourceInfos.length; ++i) {\n var sourceInfo = sourceInfos[i];\n if (sourceInfo.kind === \"video\" && sourceInfo.facing === videoConstraints.facing) {\n videoSourceId = sourceInfo.id;\n }\n }\n constraints.video = {\n mandatory: {\n minWidth: videoConstraints.width,\n minHeight: videoConstraints.height,\n minAspectRatio: videoConstraints.minAspectRatio,\n maxAspectRatio: videoConstraints.maxAspectRatio\n },\n optional: [{\n sourceId: videoSourceId\n }]\n };\n return cb(constraints);\n });\n } else {\n constraints.video = {\n mediaSource: \"camera\",\n width: { min: videoConstraints.width, max: videoConstraints.width },\n height: { min: videoConstraints.height, max: videoConstraints.height },\n require: [\"width\", \"height\"]\n };\n return cb(constraints);\n }\n}\n\n/**\n * Requests the back-facing camera of the user. The callback is called\n * whenever the stream is ready to be consumed, or if an error occures.\n * @param {Object} video\n * @param {Object} callback\n */\nfunction request(video, videoConstraints, callback) {\n normalizeConstraints(videoConstraints, function(constraints) {\n initCamera(constraints, video, callback);\n });\n}\n\nexport default {\n request: function(video, constraints, callback) {\n request(video, constraints, callback);\n },\n release: function() {\n var tracks = streamRef && streamRef.getVideoTracks();\n if (tracks.length) {\n tracks[0].stop();\n }\n streamRef = null;\n }\n};\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/camera_access.js\n **/","import ImageDebug from './image_debug';\n\nfunction contains(codeResult, list) {\n if (list) {\n return list.some(function (item) {\n return Object.keys(item).every(function (key) {\n return item[key] === codeResult[key];\n });\n });\n }\n return false;\n}\n\nfunction passesFilter(codeResult, filter) {\n if (typeof filter === 'function') {\n return filter(codeResult);\n }\n return true;\n}\n\nexport default {\n create: function(config) {\n var canvas = document.createElement(\"canvas\"),\n ctx = canvas.getContext(\"2d\"),\n results = [],\n capacity = config.capacity || 20,\n capture = config.capture === true;\n\n function matchesConstraints(codeResult) {\n return capacity && codeResult && !contains(codeResult, config.blacklist) && passesFilter(codeResult, config.filter);\n }\n\n return {\n addResult: function(data, imageSize, codeResult) {\n var result = {};\n\n if (matchesConstraints(codeResult)) {\n capacity--;\n result.codeResult = codeResult;\n if (capture) {\n canvas.width = imageSize.x;\n canvas.height = imageSize.y;\n ImageDebug.drawImage(data, imageSize, ctx);\n result.frame = canvas.toDataURL();\n }\n results.push(result);\n }\n },\n getResults: function() {\n return results;\n }\n };\n }\n};\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/result_collector.js\n **/"],"sourceRoot":""} \ No newline at end of file diff --git a/example/file_input.html b/example/file_input.html index a1571232..6435ed61 100644 --- a/example/file_input.html +++ b/example/file_input.html @@ -101,8 +101,8 @@

Working with file-input

© Copyright by Christoph Oberhofer

- + - \ No newline at end of file + diff --git a/src/vendor/jquery-1.9.0.min.js b/example/vendor/jquery-1.9.0.min.js similarity index 100% rename from src/vendor/jquery-1.9.0.min.js rename to example/vendor/jquery-1.9.0.min.js diff --git a/karma-integration.conf.js b/karma-integration.conf.js index 5a3151d7..7c4c571c 100644 --- a/karma-integration.conf.js +++ b/karma-integration.conf.js @@ -1,32 +1,43 @@ module.exports = function(config) { - config.set({ - basePath: '', - frameworks: ['mocha', 'requirejs', 'chai', 'sinon', 'sinon-chai'], - files: [ - 'test-main.js', - 'src/typedefs.js', - {pattern: 'node_modules/async/lib/async.js', included: false}, - {pattern: 'node_modules/gl-matrix/dist/gl-matrix-min.js', included: false}, - {pattern: 'src/*.js', included: false}, - {pattern: 'spec/**/*integration.spec.js', included: false}, - {pattern: 'test/**/*.*', included: false} - ], - exclude: [ - ], - plugins: [ - 'karma-chrome-launcher', - 'karma-mocha', - 'karma-requirejs', - 'karma-chai', - 'karma-sinon', - 'karma-sinon-chai' - ], - reporters: ['progress'], - port: 9876, - colors: true, - logLevel: config.LOG_INFO, - autoWatch: true, - browsers: ['Chrome'], - singleRun: false - }); + config.set({ + basePath: '', + frameworks: ['mocha', 'chai', 'sinon', 'sinon-chai'], + files: [ + 'test/test-main-integration.js', + {pattern: 'test/integration/**/*.js', included: false}, + {pattern: 'test/fixtures/**/*.*', included: false} + ], + preprocessors: { + 'test/test-main-integration.js': ['webpack'] + }, + webpack: { + module: { + preLoaders: [ + { + test: /\.js$/, + exclude: [ + /node_modules/ + ], + loader: 'babel' + } + ] + } + }, + plugins: [ + 'karma-chrome-launcher', + 'karma-mocha', + 'karma-requirejs', + 'karma-chai', + 'karma-sinon', + 'karma-sinon-chai', + require('karma-webpack') + ], + reporters: ['progress'], + port: 9876, + colors: true, + logLevel: config.LOG_INFO, + autoWatch: true, + browsers: ['Chrome'], + singleRun: false + }); }; diff --git a/karma.conf.js b/karma.conf.js index 1f91d3fb..4fcb0963 100644 --- a/karma.conf.js +++ b/karma.conf.js @@ -1,42 +1,57 @@ +var path = require('path'); + module.exports = function(config) { - config.set({ - basePath: '', - frameworks: ['mocha', 'requirejs', 'chai', 'sinon', 'sinon-chai'], - files: [ - 'test-main.js', - 'src/typedefs.js', - {pattern: 'node_modules/async/lib/async.js', included: false}, - {pattern: 'node_modules/gl-matrix/dist/gl-matrix-min.js', included: false}, - {pattern: 'src/*.js', included: false}, - {pattern: 'spec/**/*.js', included: false}, - {pattern: 'test/**/*.*', included: false} - ], - exclude: [ - 'spec/**/*integration.spec.js' - ], - preprocessors: { - 'src/*.js': ['coverage'] - }, - plugins: [ - 'karma-chrome-launcher', - 'karma-coverage', - 'karma-mocha', - 'karma-requirejs', - 'karma-chai', - 'karma-sinon', - 'karma-sinon-chai', - 'karma-phantomjs-launcher' - ], - reporters: ['progress', 'coverage'], - port: 9876, - colors: true, - logLevel: config.LOG_INFO, - autoWatch: true, - browsers: ['Chrome'], - singleRun: false, - coverageReporter: { - type : 'html', - dir : 'coverage/' - } - }); + config.set({ + basePath: '', + frameworks: ['source-map-support', 'mocha', 'chai', 'sinon', 'sinon-chai'], + files: [ + 'test/test-main.js', + {pattern: 'test/spec/**/*.js', included: false} + ], + preprocessors: { + 'test/test-main.js': ['webpack'] + }, + webpack: { + module: { + preLoaders: [ + { + test: /\.js$/, + exclude: [ + /node_modules/ + ], + loader: 'babel' + }, + { + test: /\.js$/, + include: [ + path.resolve('src') + ], + exclude: /node_modules/, + loader: 'isparta' + } + ] + } + }, + plugins: [ + 'karma-chrome-launcher', + 'karma-coverage', + 'karma-mocha', + 'karma-chai', + 'karma-sinon', + 'karma-sinon-chai', + 'karma-source-map-support', + require('karma-webpack') + ], + reporters: ['progress', 'coverage'], + port: 9876, + colors: true, + logLevel: config.LOG_INFO, + autoWatch: true, + browsers: ['Chrome'], + singleRun: false, + coverageReporter: { + type: 'html', + dir: 'coverage/' + } + }); }; diff --git a/package.json b/package.json index f77242be..3a675e30 100644 --- a/package.json +++ b/package.json @@ -10,12 +10,14 @@ "babel-eslint": "^4.1.3", "babel-loader": "^5.3.2", "chai": "^3.2.0", + "core-js": "^1.2.1", "grunt": "^0.4.5", "grunt-contrib-jshint": "^0.11.3", "grunt-contrib-nodeunit": "^0.4.1", "grunt-contrib-uglify": "^0.9.2", "grunt-karma": "^0.12.1", "grunt-requirejs": "^0.4.2", + "isparta-loader": "^1.0.0", "karma": "^0.13.9", "karma-chai": "0.1.0", "karma-chrome-launcher": "^0.2.0", @@ -25,6 +27,8 @@ "karma-requirejs": "~0.2.2", "karma-sinon": "^1.0.4", "karma-sinon-chai": "~0.2.0", + "karma-source-map-support": "^1.1.0", + "karma-webpack": "^1.7.0", "mocha": "^2.3.2", "sinon": "^1.16.1", "webpack": "^1.12.2", diff --git a/spec/array_helper.spec.js b/spec/array_helper.spec.js deleted file mode 100644 index 8e10764e..00000000 --- a/spec/array_helper.spec.js +++ /dev/null @@ -1,53 +0,0 @@ -define(['array_helper'], function(ArrayHelper){ - describe('init', function() { - it('initializes an array with the given value', function() { - var input = [0, 0, 0]; - ArrayHelper.init(input, 5); - expect(input).to.deep.equal([5, 5, 5]); - }); - }); - - describe('shuffle', function() { - before(function() { - sinon.stub(Math, 'random').returns(0.5); - }); - - after(function() { - sinon.restore(Math); - }); - it('shuffles the content of an array', function() { - var input = [1, 2, 3]; - expect(ArrayHelper.shuffle(input)).to.deep.equal([3, 1, 2]); - }); - }); - - describe('toPointList', function() { - it('converts an Array to a List of poitns', function() { - var input = [[1, 2], [2, 2], [3, 2]]; - expect(ArrayHelper.toPointList(input)).to.equal("[[1,2],\r\n[2,2],\r\n[3,2]]"); - }); - }); - - describe('threshold', function() { - it('returns all elements above the given threshold', function() { - var input = [1, 2, 3]; - expect(ArrayHelper.threshold(input, 2, function(score) { - return score * 1.5; - })).to.deep.equal([2, 3]); - }); - }); - - describe('maxIndex', function() { - it('gets the index of the biggest element in the array', function() { - var input = [1, 2, 3]; - expect(ArrayHelper.maxIndex(input)).to.equal(2); - }); - }); - - describe('max', function() { - it('gets the biggest element in the array', function() { - var input = [1, 3, 2]; - expect(ArrayHelper.max(input)).to.equal(3); - }); - }); -}); diff --git a/spec/barcode_locator.spec.js b/spec/barcode_locator.spec.js deleted file mode 100644 index 68f540ad..00000000 --- a/spec/barcode_locator.spec.js +++ /dev/null @@ -1,131 +0,0 @@ - -define(['barcode_locator', 'config', 'html_utils'], - function(BarcodeLocator, Config, HtmlUtils){ - - describe('checkImageConstraints', function() { - var config, - inputStream, - imageSize, - streamConfig = {}; - - beforeEach(function() { - imageSize = { - x: 640, y: 480 - }; - config = HtmlUtils.mergeObjects({}, Config); - inputStream = { - getWidth: function() { - return imageSize.x; - }, - getHeight: function() { - return imageSize.y; - }, - setWidth: function() {}, - setHeight: function() {}, - setTopRight: function() {}, - setCanvasSize: function() {}, - getConfig: function() { - return streamConfig; - } - }; - sinon.stub(inputStream, "setWidth", function(width) { - imageSize.x = width; - }); - sinon.stub(inputStream, "setHeight", function(height) { - imageSize.y = height; - }); - sinon.stub(inputStream, "setTopRight"); - sinon.stub(inputStream, "setCanvasSize"); - }); - - afterEach(function() { - inputStream.setWidth.restore(); - inputStream.setHeight.restore(); - }); - - it('should not adjust the image-size if not needed', function() { - var expected = {x: imageSize.x, y: imageSize.y}; - BarcodeLocator.checkImageConstraints(inputStream, config.locator); - expect(inputStream.getWidth()).to.be.equal(expected.x); - expect(inputStream.getHeight()).to.be.equal(expected.y); - }); - - it('should adjust the image-size', function() { - var expected = {x: imageSize.x, y: imageSize.y}; - - config.locator.halfSample = true; - imageSize.y += 1; - BarcodeLocator.checkImageConstraints(inputStream, config.locator); - expect(inputStream.getWidth()).to.be.equal(expected.x); - expect(inputStream.getHeight()).to.be.equal(expected.y); - }); - - it('should adjust the image-size', function() { - var expected = {x: imageSize.x, y: imageSize.y}; - - imageSize.y += 1; - config.locator.halfSample = false; - BarcodeLocator.checkImageConstraints(inputStream, config.locator); - expect(inputStream.getHeight()).to.be.equal(expected.y); - expect(inputStream.getWidth()).to.be.equal(expected.x); - }); - - it("should take the defined area into account", function() { - var expectedSize = { - x: 420, - y: 315 - }, - expectedTopRight = { - x: 115, - y: 52 - }, - expectedCanvasSize = { - x: 640, - y: 480 - }; - - streamConfig.area = { - top: "11%", - right: "15%", - bottom: "20%", - left: "18%" - }; - - config.locator.halfSample = false; - BarcodeLocator.checkImageConstraints(inputStream, config.locator); - expect(inputStream.getHeight()).to.be.equal(expectedSize.y); - expect(inputStream.getWidth()).to.be.equal(expectedSize.x); - expect(inputStream.setTopRight.getCall(0).args[0]).to.deep.equal(expectedTopRight); - expect(inputStream.setCanvasSize.getCall(0).args[0]).to.deep.equal(expectedCanvasSize); - }); - - it("should return the original size if set to full image", function() { - var expectedSize = { - x: 640, - y: 480 - }, - expectedTopRight = { - x: 0, - y: 0 - }, - expectedCanvasSize = { - x: 640, - y: 480 - }; - - streamConfig.area = { - top: "0%", - right: "0%", - bottom: "0%", - left: "0%" - }; - - config.locator.halfSample = false; - BarcodeLocator.checkImageConstraints(inputStream, config.locator); - expect(inputStream.getHeight()).to.be.equal(expectedSize.y); - expect(inputStream.getWidth()).to.be.equal(expectedSize.x); - expect(inputStream.setTopRight.getCall(0).args[0]).to.deep.equal(expectedTopRight); - expect(inputStream.setCanvasSize.getCall(0).args[0]).to.deep.equal(expectedCanvasSize); - }); - }); -}); diff --git a/spec/camera_access.spec.js b/spec/camera_access.spec.js deleted file mode 100644 index 13206063..00000000 --- a/spec/camera_access.spec.js +++ /dev/null @@ -1,123 +0,0 @@ -define(['camera_access'], function(CameraAccess){ - var originalURL, - originalMediaStreamTrack, - video, - stream; - - beforeEach(function() { - var tracks = [{ - stop: function() {} - }]; - - originalURL = window.URL; - originalMediaStreamTrack = window.MediaStreamTrack; - window.MediaStreamTrack = {}; - window.URL = null; - - - stream = { - getVideoTracks: function() { - return tracks; - } - }; - sinon.spy(tracks[0], "stop"); - - video = { - src: null, - addEventListener: function() { - - }, - removeEventListener: function() { - - }, - play: function() { - - }, - videoWidth: 320, - videoHeight: 480 - }; - sinon.stub(video, "addEventListener", function(event, cb) { - cb(); - }); - sinon.stub(video, "play"); - }); - - afterEach(function() { - window.URL = originalURL; - window.MediaStreamTrack = originalMediaStreamTrack; - }); - - describe('success', function() { - beforeEach(function() { - sinon.stub(navigator, "getUserMedia", function(constraints, success) { - success(stream); - }); - }); - - afterEach(function() { - navigator.getUserMedia.restore(); - }); - describe('request', function () { - it('should request the camera', function (done) { - CameraAccess.request(video, {}, function () { - expect(navigator.getUserMedia.calledOnce).to.equal(true); - expect(video.src).to.deep.equal(stream); - done(); - }); - }); - }); - - describe('release', function () { - it('should release the camera', function (done) { - CameraAccess.request(video, {}, function () { - expect(video.src).to.deep.equal(stream); - CameraAccess.release(); - expect(video.src.getVideoTracks()).to.have.length(1); - expect(video.src.getVideoTracks()[0].stop.calledOnce).to.equal(true); - done(); - }); - }); - }); - }); - - describe('failure', function() { - describe("permission denied", function(){ - before(function() { - sinon.stub(navigator, "getUserMedia", function(constraints, success, failure) { - failure(new Error()); - }); - }); - - after(function() { - navigator.getUserMedia.restore(); - }); - - it('should throw if getUserMedia not available', function(done) { - CameraAccess.request(video, {}, function(err) { - expect(err).to.be.defined; - done(); - }); - }); - }); - - describe("not available", function(){ - var originalGetUserMedia; - - before(function() { - originalGetUserMedia = navigator.getUserMedia; - navigator.getUserMedia = undefined; - }); - - after(function() { - navigator.getUserMedia = originalGetUserMedia; - }); - - it('should throw if getUserMedia not available', function(done) { - CameraAccess.request(video, {}, function(err) { - expect(err).to.be.defined; - done(); - }); - }); - }); - }); -}); diff --git a/spec/cv_utils.spec.js b/spec/cv_utils.spec.js deleted file mode 100644 index d490e9c5..00000000 --- a/spec/cv_utils.spec.js +++ /dev/null @@ -1,145 +0,0 @@ - -define(['cv_utils'], function(CVUtils){ - describe('imageRef', function() { - it('gets the image Reference for a coordinate', function() { - var res = CVUtils.imageRef(1, 2); - expect(res.x).to.equal(1); - expect(res.y).to.equal(2); - expect(res.toVec2()[0]).to.equal(1); - }); - }); - - describe('calculatePatchSize', function() { - it('should not throw an error in case of valid image size', function() { - var expected = {x: 32, y: 32}, - patchSize = CVUtils.calculatePatchSize("medium", {x: 640, y: 480}); - - expect(patchSize).to.be.deep.equal(expected); - }); - - it('should thow an error if image size it not valid', function() { - var expected = {x: 32, y: 32}, - patchSize = CVUtils.calculatePatchSize("medium", {x: 640, y: 480}); - - expect(patchSize).to.be.deep.equal(expected); - }); - }); - - describe('_parseCSSDimensionValues', function() { - it("should convert a percentual value correctly", function() { - var expected = { - value: 10, - unit: "%" - }, - result = CVUtils._parseCSSDimensionValues("10%"); - - expect(result).to.be.deep.equal(expected); - }); - - it("should convert a 0% value correctly", function() { - var expected = { - value: 100, - unit: "%" - }, - result = CVUtils._parseCSSDimensionValues("100%"); - - expect(result).to.be.deep.equal(expected); - }); - - it("should convert a 100% value correctly", function() { - var expected = { - value: 0, - unit: "%" - }, - result = CVUtils._parseCSSDimensionValues("0%"); - - expect(result).to.be.deep.equal(expected); - }); - - it("should convert a pixel value to percentage", function() { - var expected = { - value: 26.3, - unit: "%" - }, - result = CVUtils._parseCSSDimensionValues("26.3px"); - - console.log(result); - expect(result).to.be.deep.equal(expected); - }); - }); - - describe("_dimensionsConverters", function(){ - var context; - - beforeEach(function() { - context = { - width: 640, - height: 480 - }; - }); - - it("should convert a top-value correclty", function() { - var expected = 48, - result = CVUtils._dimensionsConverters.top({value: 10, unit: "%"}, context); - - expect(result).to.be.equal(expected); - }); - - it("should convert a right-value correclty", function() { - var expected = 640 - 128, - result = CVUtils._dimensionsConverters.right({value: 20, unit: "%"}, context); - - expect(result).to.be.equal(expected); - }); - - it("should convert a bottom-value correclty", function() { - var expected = 480 - 77, - result = CVUtils._dimensionsConverters.bottom({value: 16, unit: "%"}, context); - - expect(result).to.be.equal(expected); - }); - - it("should convert a left-value correclty", function() { - var expected = 57, - result = CVUtils._dimensionsConverters.left({value: 9, unit: "%"}, context); - - expect(result).to.be.equal(expected); - }); - }); - - describe("computeImageArea", function() { - it("should calculate an image-area", function() { - var expected = { - sx: 115, - sy: 48, - sw: 429, - sh: 336 - }, - result = CVUtils.computeImageArea(640, 480, { - top: "10%", - right: "15%", - bottom: "20%", - left: "18%" - }); - - expect(result).to.be.deep.equal(expected); - }); - - it("should calculate full image-area", function() { - var expected = { - sx: 0, - sy: 0, - sw: 640, - sh: 480 - }, - result = CVUtils.computeImageArea(640, 480, { - top: "0%", - right: "0%", - bottom: "0%", - left: "0%" - }); - - expect(result).to.be.deep.equal(expected); - }); - }); -}); diff --git a/spec/events.spec.js b/spec/events.spec.js deleted file mode 100644 index 861e4af9..00000000 --- a/spec/events.spec.js +++ /dev/null @@ -1,114 +0,0 @@ -define(['events'], function(Events){ - beforeEach(function() { - Events.unsubscribe(); - }); - describe("subscribe", function() { - - - it("should call one callback for a single event", function() { - var callbackA = sinon.stub(), - callbackB = sinon.stub(); - - Events.subscribe("test", callbackA); - Events.subscribe("test", callbackB); - Events.publish("test"); - - expect(callbackA.calledOnce).to.be.equal(true); - expect(callbackB.calledOnce).to.be.equal(true); - }); - - it("should call one callback twice if published twice", function() { - var callback = sinon.stub(); - - Events.subscribe("test", callback); - - Events.publish("test"); - Events.publish("test"); - - expect(callback.calledTwice).to.be.equal(true); - }); - - it("should call the callback asynchronuously", function(done) { - var test = { - callback: function() { - - } - }; - - sinon.stub(test, "callback", function() { - expect(test.callback.calledOnce).to.be.true; - done(); - }); - Events.subscribe("test", test.callback, true); - Events.publish("test"); - expect(test.callback.called).to.be.false; - }); - }); - - describe("once", function() { - it("should call the callback once, even when published twice", function() { - var callbackA = sinon.stub(), - callbackB = sinon.stub(); - - Events.once("test", callbackA); - Events.subscribe("test", callbackB); - - Events.publish("test"); - Events.publish("test"); - - expect(callbackA.calledOnce).to.be.equal(true); - expect(callbackB.calledTwice).to.be.equal(true); - }); - }); - - describe("unsubscribe", function() { - it("should unsubscribe all callbacks from a single event", function() { - var callbackA = sinon.stub(), - callbackB = sinon.stub(), - callbackC = sinon.stub(); - - Events.subscribe("test", callbackA); - Events.subscribe("test", callbackB); - Events.subscribe("testC", callbackC); - - Events.publish("test"); - - expect(callbackC.called).to.be.equal(false); - expect(callbackA.calledOnce).to.be.equal(true); - expect(callbackB.calledOnce).to.be.equal(true); - - Events.publish("testC"); - - expect(callbackC.calledOnce).to.be.equal(true); - expect(callbackA.calledOnce).to.be.equal(true); - expect(callbackB.calledOnce).to.be.equal(true); - - Events.unsubscribe("test"); - Events.publish("test"); - - expect(callbackC.calledOnce).to.be.equal(true); - expect(callbackA.calledOnce).to.be.equal(true); - expect(callbackB.calledOnce).to.be.equal(true); - }); - - it("should unsubscribe a single callback from a single event", function() { - var callbackA = sinon.stub(), - callbackB = sinon.stub(); - - Events.subscribe("test", callbackA); - Events.subscribe("test", callbackB); - - Events.publish("test"); - - expect(callbackA.calledOnce).to.be.equal(true); - expect(callbackB.calledOnce).to.be.equal(true); - - - Events.unsubscribe("test", callbackB); - Events.publish("test"); - - expect(callbackA.calledTwice).to.be.equal(true); - expect(callbackB.calledOnce).to.be.equal(true); - }); - }); -}); \ No newline at end of file diff --git a/spec/integration.spec.js b/spec/integration.spec.js deleted file mode 100644 index 96f12884..00000000 --- a/spec/integration.spec.js +++ /dev/null @@ -1,248 +0,0 @@ - - -define(['quagga', 'async'], function(Quagga, async) { - describe('decodeSingle', function () { - var baseFolder = "base/test/fixtures/"; - - function generateConfig() { - return { - inputStream: { - size: 640 - }, - locator: { - patchSize: "medium", - halfSample: true - }, - numOfWorkers: 0, - decoder: { - readers: ["ean_reader"] - }, - locate: true, - src: null - }; - } - - this.timeout(10000); - - function _runTestSet(testSet, config) { - var readers = config.decoder.readers.slice(), - format, - folder; - - if (typeof readers[0] === 'string'){ - format = readers[0]; - } else { - format = readers[0].format; - } - - folder = baseFolder + format.split('_').slice(0, -1).join('_') + "/"; - - it('should decode ' + folder + " correctly", function(done) { - async.eachSeries(testSet, function (sample, callback) { - config.src = folder + sample.name; - config.readers = readers; - Quagga.decodeSingle(config, function(result) { - console.log(sample.name); - expect(result.codeResult.code).to.equal(sample.result); - expect(result.codeResult.format).to.equal(sample.format); - callback(); - }); - }, function() { - done(); - }); - }); - } - - describe("EAN", function() { - var config = generateConfig(), - testSet = [ - {"name": "image-001.jpg", "result": "3574660239843"}, - {"name": "image-002.jpg", "result": "8032754490297"}, - {"name": "image-003.jpg", "result": "4006209700068"}, - /* {"name": "image-004.jpg", "result": "9002233139084"}, */ - /* {"name": "image-005.jpg", "result": "8004030044005"}, */ - {"name": "image-006.jpg", "result": "4003626011159"}, - {"name": "image-007.jpg", "result": "2111220009686"}, - {"name": "image-008.jpg", "result": "9000275609022"}, - {"name": "image-009.jpg", "result": "9004593978587"}, - {"name": "image-010.jpg", "result": "9002244845578"} - ]; - - testSet.forEach(function(sample) { - sample.format = "ean_13"; - }); - - config.decoder.readers = ['ean_reader']; - _runTestSet(testSet, config); - }); - - describe("Code128", function() { - var config = generateConfig(), - testSet = [ - {"name": "image-001.jpg", "result": "0001285112001000040801"}, - // {"name": "image-002.jpg", "result": "FANAVF1461710"}, - // {"name": "image-003.jpg", "result": "673023"}, - // {"name": "image-004.jpg", "result": "010210150301625334"}, - {"name": "image-005.jpg", "result": "419055603900009001012999"}, - {"name": "image-006.jpg", "result": "419055603900009001012999"}, - {"name": "image-007.jpg", "result": "T 000003552345"}, - {"name": "image-008.jpg", "result": "FANAVF1461710"}, - {"name": "image-009.jpg", "result": "0001285112001000040801"}, - {"name": "image-010.jpg", "result": "673023"} - ]; - - testSet.forEach(function(sample) { - sample.format = "code_128"; - }); - - config.decoder.readers = ['code_128_reader']; - _runTestSet(testSet, config); - }); - - describe("Code39", function() { - var config = generateConfig(), - testSet = [ - {"name": "image-001.jpg", "result": "B3% $DAD$"}, - {"name": "image-003.jpg", "result": "CODE39"}, - {"name": "image-004.jpg", "result": "QUAGGAJS"}, - /* {"name": "image-005.jpg", "result": "CODE39"}, */ - {"name": "image-006.jpg", "result": "2/4-8/16-32"}, - {"name": "image-007.jpg", "result": "2/4-8/16-32"}, - {"name": "image-008.jpg", "result": "CODE39"}, - {"name": "image-009.jpg", "result": "2/4-8/16-32"}, - {"name": "image-010.jpg", "result": "CODE39"} - ]; - - testSet.forEach(function(sample) { - sample.format = "code_39"; - }); - - config.decoder.readers = ['code_39_reader']; - _runTestSet(testSet, config); - }); - - describe("EAN-8", function() { - var config = generateConfig(), - testSet = [ - {"name": "image-001.jpg", "result": "42191605"}, - {"name": "image-002.jpg", "result": "42191605"}, - {"name": "image-003.jpg", "result": "90311208"}, - {"name": "image-004.jpg", "result": "24057257"}, - {"name": "image-005.jpg", "result": "90162602"}, - {"name": "image-006.jpg", "result": "24036153"}, - {"name": "image-007.jpg", "result": "42176817"}, - {"name": "image-008.jpg", "result": "42191605"}, - {"name": "image-009.jpg", "result": "42242215"}, - {"name": "image-010.jpg", "result": "42184799"} - ]; - - testSet.forEach(function(sample) { - sample.format = "ean_8"; - }); - - config.decoder.readers = ['ean_8_reader']; - _runTestSet(testSet, config); - }); - - describe("UPC", function() { - var config = generateConfig(), - testSet = [ - {"name": "image-001.jpg", "result": "882428015268"}, - {"name": "image-002.jpg", "result": "882428015268"}, - {"name": "image-003.jpg", "result": "882428015084"}, - {"name": "image-004.jpg", "result": "882428015343"}, - {"name": "image-005.jpg", "result": "882428015343"}, - /* {"name": "image-006.jpg", "result": "882428015046"}, */ - {"name": "image-007.jpg", "result": "882428015084"}, - {"name": "image-008.jpg", "result": "882428015046"}, - {"name": "image-009.jpg", "result": "039047013551"}, - {"name": "image-010.jpg", "result": "039047013551"} - ]; - - testSet.forEach(function(sample) { - sample.format = "upc_a"; - }); - - config.decoder.readers = ['upc_reader']; - _runTestSet(testSet, config); - }); - - describe("UPC-E", function() { - var config = generateConfig(), - testSet = [ - {"name": "image-001.jpg", "result": "04965802"}, - {"name": "image-002.jpg", "result": "04965802"}, - {"name": "image-003.jpg", "result": "03897425"}, - {"name": "image-004.jpg", "result": "05096893"}, - {"name": "image-005.jpg", "result": "05096893"}, - {"name": "image-006.jpg", "result": "05096893"}, - {"name": "image-007.jpg", "result": "03897425"}, - {"name": "image-008.jpg", "result": "01264904"}, - /*{"name": "image-009.jpg", "result": "01264904"},*/ - {"name": "image-010.jpg", "result": "01264904"} - ]; - - testSet.forEach(function(sample) { - sample.format = "upc_e"; - }); - - config.decoder.readers = ['upc_e_reader']; - _runTestSet(testSet, config); - }); - - describe("Codabar", function() { - var config = generateConfig(), - testSet = [ - {"name": "image-001.jpg", "result": "A10/53+17-70D"}, - {"name": "image-002.jpg", "result": "B546745735B"}, - {"name": "image-003.jpg", "result": "C$399.95A"}, - {"name": "image-004.jpg", "result": "B546745735B"}, - {"name": "image-005.jpg", "result": "C$399.95A"}, - {"name": "image-006.jpg", "result": "B546745735B"}, - {"name": "image-007.jpg", "result": "C$399.95A"}, - {"name": "image-008.jpg", "result": "A16:9/4:3/3:2D"}, - {"name": "image-009.jpg", "result": "C$399.95A"}, - {"name": "image-010.jpg", "result": "C$399.95A"} - ]; - - testSet.forEach(function(sample) { - sample.format = "codabar"; - }); - - config.decoder.readers = ['codabar_reader']; - _runTestSet(testSet, config); - }); - - describe("I2of5 with localization", function() { - var config = { - inputStream: { - size: 800, - singleChannel: false - }, - locator: { - patchSize: "small", - halfSample: false - }, - numOfWorkers: 0, - decoder: { - readers: ["i2of5_reader"], - }, - locate: true, - src: null - }, testSet = [ - {"name": "image-001.jpg", "result": "2167361334"}, - {"name": "image-002.jpg", "result": "2167361334"}, - {"name": "image-003.jpg", "result": "2167361334"}, - {"name": "image-004.jpg", "result": "2167361334"}, - {"name": "image-005.jpg", "result": "2167361334"} - ]; - - testSet.forEach(function(sample) { - sample.format = "i2of5"; - }); - - _runTestSet(testSet, config); - - }); - }); -}); \ No newline at end of file diff --git a/spec/result_collector.spec.js b/spec/result_collector.spec.js deleted file mode 100644 index dcb927a0..00000000 --- a/spec/result_collector.spec.js +++ /dev/null @@ -1,103 +0,0 @@ - -define(['result_collector', 'image_debug'], function(ResultCollector, ImageDebug) { - var canvasMock, - imageSize, - config; - - beforeEach(function() { - imageSize = {x: 320, y: 240}; - config = { - capture: true, - capacity: 20, - blacklist: [{code: "3574660239843", format: "ean_13"}], - filter: function(codeResult) { - return true; - } - }; - canvasMock = { - getContext: function() { - return {}; - }, - toDataURL: sinon.spy(), - width: 0, - height: 0 - }; - sinon.stub(document, "createElement", function(type) { - if (type === "canvas") { - return canvasMock; - } - }); - }); - - afterEach(function() { - document.createElement.restore(); - }); - - - describe('create', function () { - it("should return a new collector", function() { - ResultCollector.create(config); - expect(document.createElement.calledOnce).to.be.equal(true); - expect(document.createElement.getCall(0).args[0]).to.equal("canvas"); - }); - }); - - describe('addResult', function() { - beforeEach(function() { - sinon.stub(ImageDebug, "drawImage", function() {}); - }); - - afterEach(function() { - ImageDebug.drawImage.restore(); - }); - - it("should not add result if capacity is full", function(){ - config.capacity = 1; - var collector = ResultCollector.create(config); - collector.addResult([], imageSize, {}); - collector.addResult([], imageSize, {}); - collector.addResult([], imageSize, {}); - expect(collector.getResults()).to.have.length(1); - }); - - it("should only add results which match constraints", function(){ - var collector = ResultCollector.create(config), - results; - - collector.addResult([], imageSize, {code: "423423443", format: "ean_13"}); - collector.addResult([], imageSize, {code: "3574660239843", format: "ean_13"}); - collector.addResult([], imageSize, {code: "3574660239843", format: "code_128"}); - - results = collector.getResults(); - expect(results).to.have.length(2); - - results.forEach(function(result) { - expect(result).not.to.deep.equal(config.blacklist[0]); - }); - }); - - it("should add result if no filter is set", function() { - delete config.filter; - var collector = ResultCollector.create(config); - - collector.addResult([], imageSize, {code: "423423443", format: "ean_13"}); - expect(collector.getResults()).to.have.length(1); - }); - - it("should not add results if filter returns false", function() { - config.filter = function(){ return false }; - var collector = ResultCollector.create(config); - - collector.addResult([], imageSize, {code: "423423443", format: "ean_13"}); - expect(collector.getResults()).to.have.length(0); - }); - - it("should add result if no blacklist is set", function() { - delete config.blacklist; - var collector = ResultCollector.create(config); - - collector.addResult([], imageSize, {code: "3574660239843", format: "ean_13"}); - expect(collector.getResults()).to.have.length(1); - }); - }); -}); \ No newline at end of file diff --git a/src/array_helper.js b/src/array_helper.js index f3e536b6..153fdaf1 100644 --- a/src/array_helper.js +++ b/src/array_helper.js @@ -1,5 +1,5 @@ export default { - init : function(arr, val) { + init: function(arr, val) { var l = arr.length; while (l--) { arr[l] = val; @@ -10,7 +10,7 @@ export default { * Shuffles the content of an array * @return {Array} the array itself shuffled */ - shuffle : function(arr) { + shuffle: function(arr) { var i = arr.length - 1, j, x; for (i; i >= 0; i--) { j = Math.floor(Math.random() * i); @@ -21,7 +21,7 @@ export default { return arr; }, - toPointList : function(arr) { + toPointList: function(arr) { var i, j, row = [], rows = []; for ( i = 0; i < arr.length; i++) { row = []; @@ -37,7 +37,7 @@ export default { * returns the elements which's score is bigger than the threshold * @return {Array} the reduced array */ - threshold : function(arr, threshold, scoreFunc) { + threshold: function(arr, threshold, scoreFunc) { var i, queue = []; for ( i = 0; i < arr.length; i++) { if (scoreFunc.apply(arr, [arr[i]]) >= threshold) { @@ -47,7 +47,7 @@ export default { return queue; }, - maxIndex : function(arr) { + maxIndex: function(arr) { var i, max = 0; for ( i = 0; i < arr.length; i++) { if (arr[i] > arr[max]) { @@ -57,7 +57,7 @@ export default { return max; }, - max : function(arr) { + max: function(arr) { var i, max = 0; for ( i = 0; i < arr.length; i++) { if (arr[i] > max) { @@ -71,7 +71,7 @@ export default { var length = arr.length, sum = 0; - while(length--) { + while (length--) { sum += arr[length]; } return sum; diff --git a/src/barcode_decoder.js b/src/barcode_decoder.js index 2c0405ce..15b5b7a6 100644 --- a/src/barcode_decoder.js +++ b/src/barcode_decoder.js @@ -22,17 +22,17 @@ var readers = { i2of5_reader: I2of5Reader }; export default { - create : function(config, inputImageWrapper) { + create: function(config, inputImageWrapper) { var _canvas = { - ctx : { - frequency : null, - pattern : null, - overlay : null + ctx: { + frequency: null, + pattern: null, + overlay: null }, - dom : { - frequency : null, - pattern : null, - overlay : null + dom: { + frequency: null, + pattern: null, + overlay: null } }, _barcodeReaders = []; @@ -48,7 +48,7 @@ export default { if (!_canvas.dom.frequency) { _canvas.dom.frequency = document.createElement("canvas"); _canvas.dom.frequency.className = "frequency"; - if($debug) { + if ($debug) { $debug.appendChild(_canvas.dom.frequency); } } @@ -58,7 +58,7 @@ export default { if (!_canvas.dom.pattern) { _canvas.dom.pattern = document.createElement("canvas"); _canvas.dom.pattern.className = "patternBuffer"; - if($debug) { + if ($debug) { $debug.appendChild(_canvas.dom.pattern); } } @@ -82,10 +82,11 @@ export default { } else if (typeof readerConfig === 'string') { reader = readerConfig; } + console.log("Before registering reader: ", reader); _barcodeReaders.push(new readers[reader](config)); }); console.log("Registered Readers: " + _barcodeReaders - .map(function(reader) {return JSON.stringify({format: reader.FORMAT, config: reader.config});}) + .map((reader) => JSON.stringify({format: reader.FORMAT, config: reader.config})) .join(', ')); } @@ -93,11 +94,11 @@ export default { if (typeof document !== 'undefined') { var i, vis = [{ - node : _canvas.dom.frequency, - prop : config.showFrequency + node: _canvas.dom.frequency, + prop: config.showFrequency }, { - node : _canvas.dom.pattern, - prop : config.showPattern + node: _canvas.dom.pattern, + prop: config.showPattern }]; for (i = 0; i < vis.length; i++) { @@ -118,8 +119,8 @@ export default { function getExtendedLine(line, angle, ext) { function extendLine(amount) { var extension = { - y : amount * Math.sin(angle), - x : amount * Math.cos(angle) + y: amount * Math.sin(angle), + x: amount * Math.cos(angle) }; line[0].y -= extension.y; @@ -130,8 +131,9 @@ export default { // check if inside image extendLine(ext); - while (ext > 1 && (!inputImageWrapper.inImageWithBorder(line[0], 0) || !inputImageWrapper.inImageWithBorder(line[1], 0))) { - ext -= Math.ceil(ext/2); + while (ext > 1 && (!inputImageWrapper.inImageWithBorder(line[0], 0) + || !inputImageWrapper.inImageWithBorder(line[1], 0))) { + ext -= Math.ceil(ext / 2); extendLine(-ext); } return line; @@ -139,11 +141,11 @@ export default { function getLine(box) { return [{ - x : (box[1][0] - box[0][0]) / 2 + box[0][0], - y : (box[1][1] - box[0][1]) / 2 + box[0][1] + x: (box[1][0] - box[0][0]) / 2 + box[0][0], + y: (box[1][1] - box[0][1]) / 2 + box[0][1] }, { - x : (box[3][0] - box[2][0]) / 2 + box[2][0], - y : (box[3][1] - box[2][1]) / 2 + box[2][1] + x: (box[3][0] - box[2][0]) / 2 + box[2][0], + y: (box[3][1] - box[2][1]) / 2 + box[2][1] }]; } @@ -195,8 +197,8 @@ export default { // move line perpendicular to angle dir = sideLength / slices * i * (i % 2 === 0 ? -1 : 1); extension = { - y : dir * xdir, - x : dir * ydir + y: dir * xdir, + x: dir * ydir }; line[0].y += extension.x; line[0].x -= extension.y; @@ -234,17 +236,17 @@ export default { line = getLine(box); lineLength = getLineLength(line); lineAngle = Math.atan2(line[1].y - line[0].y, line[1].x - line[0].x); - line = getExtendedLine(line, lineAngle, Math.floor(lineLength*0.1)); - if(line === null){ + line = getExtendedLine(line, lineAngle, Math.floor(lineLength * 0.1)); + if (line === null){ return null; } result = tryDecode(line); - if(result === null) { + if (result === null) { result = tryDecodeBruteForce(box, line, lineAngle); } - if(result === null) { + if (result === null) { return null; } @@ -262,10 +264,10 @@ export default { } return { - decodeFromBoundingBox : function(box) { + decodeFromBoundingBox: function(box) { return decodeFromBoundingBox(box); }, - decodeFromBoundingBoxes : function(boxes) { + decodeFromBoundingBoxes: function(boxes) { var i, result; for ( i = 0; i < boxes.length; i++) { result = decodeFromBoundingBox(boxes[i]); diff --git a/src/barcode_locator.js b/src/barcode_locator.js index 78a99bbb..9fc742b9 100644 --- a/src/barcode_locator.js +++ b/src/barcode_locator.js @@ -1,6 +1,3 @@ -/* jshint undef: true, unused: true, browser:true, devel: true */ -/* global define */ - import ImageWrapper from './image_wrapper'; import CVUtils from './cv_utils'; import Rasterizer from './rasterizer'; @@ -21,11 +18,11 @@ var _config, _binaryImageWrapper, _patchSize, _canvasContainer = { - ctx : { - binary : null + ctx: { + binary: null }, - dom : { - binary : null + dom: { + binary: null } }, _numPatches = {x: 0, y: 0}, @@ -40,8 +37,8 @@ function initBuffers() { if (_config.halfSample) { _currentImageWrapper = new ImageWrapper({ - x : _inputImageWrapper.size.x / 2 | 0, - y : _inputImageWrapper.size.y / 2 | 0 + x: _inputImageWrapper.size.x / 2 | 0, + y: _inputImageWrapper.size.y / 2 | 0 }); } else { _currentImageWrapper = _inputImageWrapper; @@ -56,16 +53,19 @@ function initBuffers() { _labelImageWrapper = new ImageWrapper(_patchSize, undefined, Array, true); - skeletonImageData = new ArrayBuffer(64*1024); - _subImageWrapper = new ImageWrapper(_patchSize, new Uint8Array(skeletonImageData, 0, _patchSize.x * _patchSize.y)); - _skelImageWrapper = new ImageWrapper(_patchSize, new Uint8Array(skeletonImageData, _patchSize.x * _patchSize.y * 3, _patchSize.x * _patchSize.y), undefined, true); + skeletonImageData = new ArrayBuffer(64 * 1024); + _subImageWrapper = new ImageWrapper(_patchSize, + new Uint8Array(skeletonImageData, 0, _patchSize.x * _patchSize.y)); + _skelImageWrapper = new ImageWrapper(_patchSize, + new Uint8Array(skeletonImageData, _patchSize.x * _patchSize.y * 3, _patchSize.x * _patchSize.y), + undefined, true); _skeletonizer = skeletonizer(self, { - size : _patchSize.x + size: _patchSize.x }, skeletonImageData); _imageToPatchGrid = new ImageWrapper({ - x : (_currentImageWrapper.size.x / _subImageWrapper.size.x) | 0, - y : (_currentImageWrapper.size.y / _subImageWrapper.size.y) | 0 + x: (_currentImageWrapper.size.x / _subImageWrapper.size.x) | 0, + y: (_currentImageWrapper.size.y / _subImageWrapper.size.y) | 0 }, undefined, Array, true); _patchGrid = new ImageWrapper(_imageToPatchGrid.size, undefined, undefined, true); _patchLabelGrid = new ImageWrapper(_imageToPatchGrid.size, undefined, Int32Array, true); @@ -90,7 +90,18 @@ function initCanvas() { * @returns {Array} The minimal bounding box */ function boxFromPatches(patches) { - var overAvg, i, j, patch, transMat, minx = _binaryImageWrapper.size.x, miny = _binaryImageWrapper.size.y, maxx = -_binaryImageWrapper.size.x, maxy = -_binaryImageWrapper.size.y, box, scale; + var overAvg, + i, + j, + patch, + transMat, + minx = + _binaryImageWrapper.size.x, + miny = _binaryImageWrapper.size.y, + maxx = -_binaryImageWrapper.size.x, + maxy = -_binaryImageWrapper.size.y, + box, + scale; // draw all patches which are to be taken into consideration overAvg = 0; @@ -191,9 +202,8 @@ function findPatches() { rasterizer, rasterResult, patch; - for ( i = 0; i < _numPatches.x; i++) { - for ( j = 0; j < _numPatches.y; j++) { - + for (i = 0; i < _numPatches.x; i++) { + for (j = 0; j < _numPatches.y; j++) { x = _subImageWrapper.size.x * i; y = _subImageWrapper.size.y * j; @@ -207,7 +217,8 @@ function findPatches() { rasterResult = rasterizer.rasterize(0); if (_config.showLabels) { - _labelImageWrapper.overlay(_canvasContainer.dom.binary, Math.floor(360 / rasterResult.count), {x : x, y : y}); + _labelImageWrapper.overlay(_canvasContainer.dom.binary, Math.floor(360 / rasterResult.count), + {x: x, y: y}); } // calculate moments from the skeletonized patch @@ -221,7 +232,8 @@ function findPatches() { if (_config.showFoundPatches) { for ( i = 0; i < patchesFound.length; i++) { patch = patchesFound[i]; - ImageDebug.drawRect(patch.pos, _subImageWrapper.size, _canvasContainer.ctx.binary, {color: "#99ff00", lineWidth: 2}); + ImageDebug.drawRect(patch.pos, _subImageWrapper.size, _canvasContainer.ctx.binary, + {color: "#99ff00", lineWidth: 2}); } } @@ -251,8 +263,8 @@ function findBiggestConnectedAreas(maxLabel){ labelHist = labelHist.map(function(val, idx) { return { - val : val, - label : idx + 1 + val: val, + label: idx + 1 }; }); @@ -301,7 +313,8 @@ function findBoxes(topLabels, maxLabel) { patch = patches[j]; hsv[0] = (topLabels[i].label / (maxLabel + 1)) * 360; CVUtils.hsv2rgb(hsv, rgb); - ImageDebug.drawRect(patch.pos, _subImageWrapper.size, _canvasContainer.ctx.binary, {color: "rgb(" + rgb.join(",") + ")", lineWidth: 2}); + ImageDebug.drawRect(patch.pos, _subImageWrapper.size, _canvasContainer.ctx.binary, + {color: "rgb(" + rgb.join(",") + ")", lineWidth: 2}); } } } @@ -349,12 +362,11 @@ function skeletonize(x, y) { function describePatch(moments, patchPos, x, y) { var k, avg, - sum = 0, eligibleMoments = [], matchingMoments, patch, patchesFound = [], - minComponentWeight = Math.ceil(_patchSize.x/3); + minComponentWeight = Math.ceil(_patchSize.x / 3); if (moments.length >= 2) { // only collect moments which's area covers at least minComponentWeight pixels. @@ -366,7 +378,6 @@ function describePatch(moments, patchPos, x, y) { // if at least 2 moments are found which have at least minComponentWeights covered if (eligibleMoments.length >= 2) { - sum = eligibleMoments.length; matchingMoments = similarMoments(eligibleMoments); avg = 0; // determine the similarity of the moments @@ -376,18 +387,25 @@ function describePatch(moments, patchPos, x, y) { // Only two of the moments are allowed not to fit into the equation // add the patch to the set - if (matchingMoments.length > 1 && matchingMoments.length >= (eligibleMoments.length / 4) * 3 && matchingMoments.length > moments.length / 4) { + if (matchingMoments.length > 1 + && matchingMoments.length >= (eligibleMoments.length / 4) * 3 + && matchingMoments.length > moments.length / 4) { avg /= matchingMoments.length; patch = { - index : patchPos[1] * _numPatches.x + patchPos[0], - pos : { - x : x, - y : y + index: patchPos[1] * _numPatches.x + patchPos[0], + pos: { + x: x, + y: y }, - box : [vec2.clone([x, y]), vec2.clone([x + _subImageWrapper.size.x, y]), vec2.clone([x + _subImageWrapper.size.x, y + _subImageWrapper.size.y]), vec2.clone([x, y + _subImageWrapper.size.y])], - moments : matchingMoments, - rad : avg, - vec : vec2.clone([Math.cos(avg), Math.sin(avg)]) + box: [ + vec2.clone([x, y]), + vec2.clone([x + _subImageWrapper.size.x, y]), + vec2.clone([x + _subImageWrapper.size.x, y + _subImageWrapper.size.y]), + vec2.clone([x, y + _subImageWrapper.size.y]) + ], + moments: matchingMoments, + rad: avg, + vec: vec2.clone([Math.cos(avg), Math.sin(avg)]) }; patchesFound.push(patch); } @@ -420,10 +438,17 @@ function rasterizeAngularSimilarity(patchesFound) { } function trace(currentIdx) { - var x, y, currentPatch, patch, idx, dir, current = { - x : currentIdx % _patchLabelGrid.size.x, - y : (currentIdx / _patchLabelGrid.size.x) | 0 - }, similarity; + var x, + y, + currentPatch, + patch, + idx, + dir, + current = { + x: currentIdx % _patchLabelGrid.size.x, + y: (currentIdx / _patchLabelGrid.size.x) | 0 + }, + similarity; if (currentIdx < _patchLabelGrid.data.length) { currentPatch = _imageToPatchGrid.data[currentIdx]; @@ -477,7 +502,8 @@ function rasterizeAngularSimilarity(patchesFound) { patch = _imageToPatchGrid.data[j]; hsv[0] = (_patchLabelGrid.data[j] / (label + 1)) * 360; CVUtils.hsv2rgb(hsv, rgb); - ImageDebug.drawRect(patch.pos, _subImageWrapper.size, _canvasContainer.ctx.binary, {color: "rgb(" + rgb.join(",") + ")", lineWidth: 2}); + ImageDebug.drawRect(patch.pos, _subImageWrapper.size, _canvasContainer.ctx.binary, + {color: "rgb(" + rgb.join(",") + ")", lineWidth: 2}); } } } @@ -486,7 +512,7 @@ function rasterizeAngularSimilarity(patchesFound) { } export default { - init : function(inputImageWrapper, config) { + init: function(inputImageWrapper, config) { _config = config; _inputImageWrapper = inputImageWrapper; @@ -494,10 +520,10 @@ export default { initCanvas(); }, - locate : function() { + locate: function() { var patchesFound, - topLabels, - boxes; + topLabels, + boxes; if (_config.halfSample) { CVUtils.halfSample(_inputImageWrapper, _currentImageWrapper); @@ -551,8 +577,8 @@ export default { patchSize = CVUtils.calculatePatchSize(config.patchSize, size); console.log("Patch-Size: " + JSON.stringify(patchSize)); - inputStream.setWidth(Math.floor(Math.floor(size.x/patchSize.x)*(1/halfSample)*patchSize.x)); - inputStream.setHeight(Math.floor(Math.floor(size.y/patchSize.y)*(1/halfSample)*patchSize.y)); + inputStream.setWidth(Math.floor(Math.floor(size.x / patchSize.x) * (1 / halfSample) * patchSize.x)); + inputStream.setHeight(Math.floor(Math.floor(size.y / patchSize.y) * (1 / halfSample) * patchSize.y)); if ((inputStream.getWidth() % patchSize.x) === 0 && (inputStream.getHeight() % patchSize.y) === 0) { return true; diff --git a/src/barcode_reader.js b/src/barcode_reader.js index bea1ed6a..ac2da266 100644 --- a/src/barcode_reader.js +++ b/src/barcode_reader.js @@ -32,7 +32,7 @@ BarcodeReader.prototype._matchPattern = function(counter, code) { } error += singleError; } - return error/modulo; + return error / modulo; }; BarcodeReader.prototype._nextSet = function(line, offset) { @@ -73,7 +73,7 @@ BarcodeReader.prototype._normalize = function(counter, modulo) { normalized.push(norm); } } else { - ratio = (sum + numOnes)/modulo; + ratio = (sum + numOnes) / modulo; for (i = 0; i < counter.length; i++) { norm = counter[i] / ratio; normalized.push(norm); @@ -90,9 +90,9 @@ BarcodeReader.prototype._matchTrace = function(cmpCounter, epsilon) { isWhite = !self._row[offset], counterPos = 0, bestMatch = { - error : Number.MAX_VALUE, - code : -1, - start : 0 + error: Number.MAX_VALUE, + code: -1, + start: 0 }, error; @@ -207,14 +207,14 @@ Object.defineProperty(BarcodeReader.prototype, "FORMAT", { }); BarcodeReader.DIRECTION = { - FORWARD : 1, - REVERSE : -1 + FORWARD: 1, + REVERSE: -1 }; BarcodeReader.Exception = { - StartNotFoundException : "Start-Info was not found!", - CodeNotFoundException : "Code could not be found!", - PatternNotFoundException : "Pattern could not be found!" + StartNotFoundException: "Start-Info was not found!", + CodeNotFoundException: "Code could not be found!", + PatternNotFoundException: "Pattern could not be found!" }; BarcodeReader.CONFIG_KEYS = {}; diff --git a/src/bresenham.js b/src/bresenham.js index db23973c..8afe4573 100644 --- a/src/bresenham.js +++ b/src/bresenham.js @@ -4,9 +4,9 @@ import ImageWrapper from './image_wrapper'; var Bresenham = {}; var Slope = { - DIR : { - UP : 1, - DOWN : -1 + DIR: { + UP: 1, + DOWN: -1 } }; /** @@ -71,7 +71,7 @@ Bresenham.getBarcodeLine = function(imageWrapper, p1, p2) { y = y0; ystep = y0 < y1 ? 1 : -1; for ( x = x0; x < x1; x++) { - if(steep){ + if (steep){ read(y, x); } else { read(x, y); @@ -84,9 +84,9 @@ Bresenham.getBarcodeLine = function(imageWrapper, p1, p2) { } return { - line : line, - min : min, - max : max + line: line, + min: min, + max: max }; }; @@ -110,7 +110,6 @@ Bresenham.toOtsuBinaryLine = function(result) { * @param {Object} result {line, min, max} */ Bresenham.toBinaryLine = function(result) { - var min = result.min, max = result.max, line = result.line, @@ -128,15 +127,15 @@ Bresenham.toBinaryLine = function(result) { // 1. find extrema currentDir = line[0] > center ? Slope.DIR.UP : Slope.DIR.DOWN; extrema.push({ - pos : 0, - val : line[0] + pos: 0, + val: line[0] }); for ( i = 0; i < line.length - 2; i++) { slope = (line[i + 1] - line[i]); slope2 = (line[i + 2] - line[i + 1]); - if ((slope + slope2) < rThreshold && line[i + 1] < (center*1.5)) { + if ((slope + slope2) < rThreshold && line[i + 1] < (center * 1.5)) { dir = Slope.DIR.DOWN; - } else if ((slope + slope2) > threshold && line[i + 1] > (center*0.5)) { + } else if ((slope + slope2) > threshold && line[i + 1] > (center * 0.5)) { dir = Slope.DIR.UP; } else { dir = currentDir; @@ -144,15 +143,15 @@ Bresenham.toBinaryLine = function(result) { if (currentDir !== dir) { extrema.push({ - pos : i, - val : line[i] + pos: i, + val: line[i] }); currentDir = dir; } } extrema.push({ - pos : line.length, - val : line[line.length - 1] + pos: line.length, + val: line[line.length - 1] }); for ( j = extrema[0].pos; j < extrema[1].pos; j++) { @@ -173,8 +172,8 @@ Bresenham.toBinaryLine = function(result) { } return { - line : line, - threshold : threshold + line: line, + threshold: threshold }; }; diff --git a/src/camera_access.js b/src/camera_access.js index 17f4fd49..addcb7d8 100644 --- a/src/camera_access.js +++ b/src/camera_access.js @@ -83,9 +83,9 @@ function normalizeConstraints(config, cb) { if ( typeof MediaStreamTrack !== 'undefined' && typeof MediaStreamTrack.getSources !== 'undefined') { MediaStreamTrack.getSources(function(sourceInfos) { var videoSourceId; - for (var i = 0; i != sourceInfos.length; ++i) { + for (var i = 0; i < sourceInfos.length; ++i) { var sourceInfo = sourceInfos[i]; - if (sourceInfo.kind == "video" && sourceInfo.facing == videoConstraints.facing) { + if (sourceInfo.kind === "video" && sourceInfo.facing === videoConstraints.facing) { videoSourceId = sourceInfo.id; } } @@ -126,10 +126,10 @@ function request(video, videoConstraints, callback) { } export default { - request : function(video, constraints, callback) { + request: function(video, constraints, callback) { request(video, constraints, callback); }, - release : function() { + release: function() { var tracks = streamRef && streamRef.getVideoTracks(); if (tracks.length) { tracks[0].stop(); diff --git a/src/cluster.js b/src/cluster.js index 7112a446..cbd64577 100644 --- a/src/cluster.js +++ b/src/cluster.js @@ -3,11 +3,13 @@ import {vec2} from 'gl-matrix'; * Creates a cluster for grouping similar orientations of datapoints */ export default { - create : function(point, threshold) { - var points = [], center = { - rad : 0, - vec : vec2.clone([0, 0]) - }, pointMap = {}; + create: function(point, threshold) { + var points = [], + center = { + rad: 0, + vec: vec2.clone([0, 0]) + }, + pointMap = {}; function init() { add(point); @@ -31,13 +33,13 @@ export default { init(); return { - add : function(point) { + add: function(point) { if (!pointMap[point.id]) { add(point); updateCenter(); } }, - fits : function(point) { + fits: function(point) { // check cosine similarity to center-angle var similarity = Math.abs(vec2.dot(point.point.vec, center.vec)); if (similarity > threshold) { @@ -45,19 +47,19 @@ export default { } return false; }, - getPoints : function() { + getPoints: function() { return points; }, - getCenter : function() { + getCenter: function() { return center; } }; }, - createPoint : function(point, id, property) { + createPoint: function(point, id, property) { return { - rad : point[property], - point : point, - id : id + rad: point[property], + point: point, + id: id }; } }; diff --git a/src/codabar_reader.js b/src/codabar_reader.js index d4d1817b..fe6dd498 100644 --- a/src/codabar_reader.js +++ b/src/codabar_reader.js @@ -8,7 +8,8 @@ function CodabarReader() { var properties = { ALPHABETH_STRING: {value: "0123456789-$:/.+ABCD"}, ALPHABET: {value: [48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 45, 36, 58, 47, 46, 43, 65, 66, 67, 68]}, - CHARACTER_ENCODINGS: {value: [0x003, 0x006, 0x009, 0x060, 0x012, 0x042, 0x021, 0x024, 0x030, 0x048, 0x00c, 0x018, 0x045, 0x051, 0x054, 0x015, 0x01A, 0x029, 0x00B, 0x00E]}, + CHARACTER_ENCODINGS: {value: [0x003, 0x006, 0x009, 0x060, 0x012, 0x042, 0x021, 0x024, 0x030, 0x048, 0x00c, 0x018, + 0x045, 0x051, 0x054, 0x015, 0x01A, 0x029, 0x00B, 0x00E]}, START_END: {value: [0x01A, 0x029, 0x00B, 0x00E]}, MIN_ENCODED_CHARS: {value: 4}, MAX_ACCEPTABLE: {value: 2.0}, @@ -49,7 +50,7 @@ CodabarReader.prototype._decode = function() { if (result.length > 1 && self._isStartEnd(pattern)) { break; } - } while(nextStart < self._counters.length); + } while (nextStart < self._counters.length); // verify end if ((result.length - 2) < self.MIN_ENCODED_CHARS || !self._isStartEnd(pattern)) { @@ -69,17 +70,19 @@ CodabarReader.prototype._decode = function() { end = start.start + self._sumCounters(start.startCounter, nextStart - 8); return { - code : result.join(""), - start : start.start, - end : end, - startInfo : start, - decodedCodes : result + code: result.join(""), + start: start.start, + end: end, + startInfo: start, + decodedCodes: result }; }; CodabarReader.prototype._verifyWhitespace = function(startCounter, endCounter) { - if ((startCounter - 1 <= 0) || this._counters[startCounter-1] >= (this._calculatePatternLength(startCounter) / 2.0)) { - if ((endCounter + 8 >= this._counters.length) || this._counters[endCounter+7] >= (this._calculatePatternLength(endCounter) / 2.0)) { + if ((startCounter - 1 <= 0) + || this._counters[startCounter - 1] >= (this._calculatePatternLength(startCounter) / 2.0)) { + if ((endCounter + 8 >= this._counters.length) + || this._counters[endCounter + 7] >= (this._calculatePatternLength(endCounter) / 2.0)) { return true; } } @@ -120,7 +123,7 @@ CodabarReader.prototype._thresholdResultPattern = function(result, startCounter) pattern = self._charToPattern(result[i]); for (j = 6; j >= 0; j--) { kind = (j & 1) === 2 ? categorization.bar : categorization.space; - cat = (pattern & 1) === 1 ? kind.wide : kind.narrow; + cat = (pattern & 1) === 1 ? kind.wide : kind.narrow; cat.size += self._counters[pos + j]; cat.counts++; pattern >>= 1; @@ -130,7 +133,7 @@ CodabarReader.prototype._thresholdResultPattern = function(result, startCounter) ["space", "bar"].forEach(function(key) { var kind = categorization[key]; - kind.wide.min = Math.floor((kind.narrow.size/kind.narrow.counts + kind.wide.size / kind.wide.counts) / 2); + kind.wide.min = Math.floor((kind.narrow.size / kind.narrow.counts + kind.wide.size / kind.wide.counts) / 2); kind.narrow.max = Math.ceil(kind.wide.min); kind.wide.max = Math.ceil((kind.wide.size * self.MAX_ACCEPTABLE + self.PADDING) / kind.wide.counts); }); @@ -166,7 +169,7 @@ CodabarReader.prototype._validateResult = function(result, startCounter) { pattern = self._charToPattern(result[i]); for (j = 6; j >= 0; j--) { kind = (j & 1) === 0 ? thresholds.bar : thresholds.space; - cat = (pattern & 1) === 1 ? kind.wide : kind.narrow; + cat = (pattern & 1) === 1 ? kind.wide : kind.narrow; size = self._counters[pos + j]; if (size < cat.min || size > cat.max) { return false; diff --git a/src/code_128_reader.js b/src/code_128_reader.js index 79284f94..20980187 100644 --- a/src/code_128_reader.js +++ b/src/code_128_reader.js @@ -5,16 +5,16 @@ function Code128Reader() { } var properties = { - CODE_SHIFT : {value: 98}, - CODE_C : {value: 99}, - CODE_B : {value: 100}, - CODE_A : {value: 101}, - START_CODE_A : {value: 103}, - START_CODE_B : {value: 104}, - START_CODE_C : {value: 105}, - STOP_CODE : {value: 106}, - MODULO : {value: 11}, - CODE_PATTERN : {value: [ + CODE_SHIFT: {value: 98}, + CODE_C: {value: 99}, + CODE_B: {value: 100}, + CODE_A: {value: 101}, + START_CODE_A: {value: 103}, + START_CODE_B: {value: 104}, + START_CODE_C: {value: 105}, + STOP_CODE: {value: 106}, + MODULO: {value: 11}, + CODE_PATTERN: {value: [ [2, 1, 2, 2, 2, 2], [2, 2, 2, 1, 2, 2], [2, 2, 2, 2, 2, 1], @@ -139,10 +139,10 @@ Code128Reader.prototype._decodeCode = function(start) { isWhite = !self._row[offset], counterPos = 0, bestMatch = { - error : Number.MAX_VALUE, - code : -1, - start : start, - end : start + error: Number.MAX_VALUE, + code: -1, + start: start, + end: start }, code, error, @@ -183,10 +183,10 @@ Code128Reader.prototype._findStart = function() { isWhite = false, counterPos = 0, bestMatch = { - error : Number.MAX_VALUE, - code : -1, - start : 0, - end : 0 + error: Number.MAX_VALUE, + code: -1, + start: 0, + end: 0 }, code, error, @@ -247,20 +247,19 @@ Code128Reader.prototype._decode = function() { rawResult = [], decodedCodes = [], shiftNext = false, - unshift, - lastCharacterWasPrintable; + unshift; if (startInfo === null) { return null; } code = { - code : startInfo.code, - start : startInfo.start, - end : startInfo.end + code: startInfo.code, + start: startInfo.start, + end: startInfo.end }; decodedCodes.push(code); checksum = code.code; - switch(code.code) { + switch (code.code) { case self.START_CODE_A: codeset = self.CODE_A; break; @@ -286,7 +285,7 @@ Code128Reader.prototype._decode = function() { } decodedCodes.push(code); - switch(codeset) { + switch (codeset) { case self.CODE_A: if (code.code < 64) { result.push(String.fromCharCode(32 + code.code)); @@ -314,9 +313,6 @@ Code128Reader.prototype._decode = function() { if (code.code < 96) { result.push(String.fromCharCode(32 + code.code)); } else { - if (code.code != self.STOP_CODE) { - lastCharacterWasPrintable = false; - } switch (code.code) { case self.CODE_SHIFT: shiftNext = true; @@ -355,7 +351,7 @@ Code128Reader.prototype._decode = function() { done = true; } if (unshift) { - codeset = codeset == self.CODE_A ? self.CODE_B : self.CODE_A; + codeset = codeset === self.CODE_A ? self.CODE_B : self.CODE_A; } } @@ -365,14 +361,14 @@ Code128Reader.prototype._decode = function() { // find end bar code.end = self._nextUnset(self._row, code.end); - if(!self._verifyTrailingWhitespace(code)){ + if (!self._verifyTrailingWhitespace(code)){ return null; } // checksum // Does not work correctly yet!!! startcode - endcode? checksum -= multiplier * rawResult[rawResult.length - 1]; - if (checksum % 103 != rawResult[rawResult.length - 1]) { + if (checksum % 103 !== rawResult[rawResult.length - 1]) { return null; } @@ -383,16 +379,14 @@ Code128Reader.prototype._decode = function() { // remove last code from result (checksum) result.splice(result.length - 1, 1); - - return { - code : result.join(""), - start : startInfo.start, - end : code.end, - codeset : codeset, - startInfo : startInfo, - decodedCodes : decodedCodes, - endInfo : code + code: result.join(""), + start: startInfo.start, + end: code.end, + codeset: codeset, + startInfo: startInfo, + decodedCodes: decodedCodes, + endInfo: code }; }; diff --git a/src/code_39_reader.js b/src/code_39_reader.js index 3b8f085d..03ba5288 100644 --- a/src/code_39_reader.js +++ b/src/code_39_reader.js @@ -7,8 +7,12 @@ function Code39Reader() { var properties = { ALPHABETH_STRING: {value: "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ-. *$/+%"}, - ALPHABET: {value: [48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 45, 46, 32, 42, 36, 47, 43, 37]}, - CHARACTER_ENCODINGS: {value: [0x034, 0x121, 0x061, 0x160, 0x031, 0x130, 0x070, 0x025, 0x124, 0x064, 0x109, 0x049, 0x148, 0x019, 0x118, 0x058, 0x00D, 0x10C, 0x04C, 0x01C, 0x103, 0x043, 0x142, 0x013, 0x112, 0x052, 0x007, 0x106, 0x046, 0x016, 0x181, 0x0C1, 0x1C0, 0x091, 0x190, 0x0D0, 0x085, 0x184, 0x0C4, 0x094, 0x0A8, 0x0A2, 0x08A, 0x02A]}, + ALPHABET: {value: [48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, + 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 45, 46, 32, 42, 36, 47, 43, 37]}, + CHARACTER_ENCODINGS: {value: [0x034, 0x121, 0x061, 0x160, 0x031, 0x130, 0x070, 0x025, 0x124, 0x064, 0x109, 0x049, + 0x148, 0x019, 0x118, 0x058, 0x00D, 0x10C, 0x04C, 0x01C, 0x103, 0x043, 0x142, 0x013, 0x112, 0x052, 0x007, 0x106, + 0x046, 0x016, 0x181, 0x0C1, 0x1C0, 0x091, 0x190, 0x0D0, 0x085, 0x184, 0x0C4, 0x094, 0x0A8, 0x0A2, 0x08A, 0x02A + ]}, ASTERISK: {value: 0x094}, FORMAT: {value: "code_39", writeable: false} }; @@ -45,7 +49,7 @@ Code39Reader.prototype._toCounters = function(start, counter) { Code39Reader.prototype._decode = function() { var self = this, - counters = [0,0,0,0,0,0,0,0,0], + counters = [0, 0, 0, 0, 0, 0, 0, 0, 0], result = [], start = self._findStart(), decodedChar, @@ -72,23 +76,23 @@ Code39Reader.prototype._decode = function() { lastStart = nextStart; nextStart += ArrayHelper.sum(counters); nextStart = self._nextSet(self._row, nextStart); - } while(decodedChar !== '*'); + } while (decodedChar !== '*'); result.pop(); if (!result.length) { return null; } - if(!self._verifyTrailingWhitespace(lastStart, nextStart, counters)) { + if (!self._verifyTrailingWhitespace(lastStart, nextStart, counters)) { return null; } return { - code : result.join(""), - start : start.start, - end : nextStart, - startInfo : start, - decodedCodes : result + code: result.join(""), + start: start.start, + end: nextStart, + startInfo: start, + decodedCodes: result }; }; @@ -136,7 +140,7 @@ Code39Reader.prototype._toPattern = function(counters) { pattern, i; - while(numWideBars > 3) { + while (numWideBars > 3) { maxNarrowWidth = self._findNextWidth(counters, maxNarrowWidth); numWideBars = 0; pattern = 0; @@ -167,7 +171,7 @@ Code39Reader.prototype._findStart = function() { var self = this, offset = self._nextSet(self._row), patternStart = offset, - counter = [0,0,0,0,0,0,0,0,0], + counter = [0, 0, 0, 0, 0, 0, 0, 0, 0], counterPos = 0, isWhite = false, i, @@ -179,7 +183,6 @@ Code39Reader.prototype._findStart = function() { counter[counterPos]++; } else { if (counterPos === counter.length - 1) { - // find start pattern if (self._toPattern(counter) === self.ASTERISK) { whiteSpaceMustStart = Math.floor(Math.max(0, patternStart - ((i - patternStart) / 4))); diff --git a/src/typedefs.js b/src/typedefs.js index c43362d1..d3a607e6 100644 --- a/src/typedefs.js +++ b/src/typedefs.js @@ -3,31 +3,28 @@ * Normalizes browser-specific prefixes */ - if (typeof window !== 'undefined') { - window.requestAnimFrame = (function () { - return window.requestAnimationFrame || - window.webkitRequestAnimationFrame || - window.mozRequestAnimationFrame || - window.oRequestAnimationFrame || - window.msRequestAnimationFrame || - function (/* function FrameRequestCallback */ callback, /* DOMElement Element */ element) { - window.setTimeout(callback, 1000 / 60); - }; - })(); +if (typeof window !== 'undefined') { + window.requestAnimFrame = (function () { + return window.requestAnimationFrame || + window.webkitRequestAnimationFrame || + window.mozRequestAnimationFrame || + window.oRequestAnimationFrame || + window.msRequestAnimationFrame || + function (/* function FrameRequestCallback */ callback) { + window.setTimeout(callback, 1000 / 60); + }; + })(); - navigator.getUserMedia = navigator.getUserMedia || navigator.webkitGetUserMedia || navigator.mozGetUserMedia || navigator.msGetUserMedia; - window.URL = window.URL || window.webkitURL || window.mozURL || window.msURL; - } - Math.imul = Math.imul || function(a, b) { - var ah = (a >>> 16) & 0xffff, - al = a & 0xffff, - bh = (b >>> 16) & 0xffff, - bl = b & 0xffff; - // the shift by 0 fixes the sign on the high part - // the final |0 converts the unsigned value into a signed value - return ((al * bl) + (((ah * bl + al * bh) << 16) >>> 0)|0); - }; - -export default { - + navigator.getUserMedia = navigator.getUserMedia || + navigator.webkitGetUserMedia || navigator.mozGetUserMedia || navigator.msGetUserMedia; + window.URL = window.URL || window.webkitURL || window.mozURL || window.msURL; } +Math.imul = Math.imul || function(a, b) { + var ah = (a >>> 16) & 0xffff, + al = a & 0xffff, + bh = (b >>> 16) & 0xffff, + bl = b & 0xffff; + // the shift by 0 fixes the sign on the high part + // the final |0 converts the unsigned value into a signed value + return ((al * bl) + (((ah * bl + al * bh) << 16) >>> 0) | 0); +}; diff --git a/src/upc_reader.js b/src/upc_reader.js index a97e1518..fdf3cd01 100644 --- a/src/upc_reader.js +++ b/src/upc_reader.js @@ -14,12 +14,12 @@ UPCReader.prototype.constructor = UPCReader; UPCReader.prototype._decode = function() { var result = EANReader.prototype._decode.call(this); + console.log("result", result); if (result && result.code && result.code.length === 13 && result.code.charAt(0) === "0") { - result.code = result.code.substring(1); return result; } return null; }; -export default EANReader; +export default UPCReader; diff --git a/test-main.js b/test-main.js deleted file mode 100644 index 6665e6f5..00000000 --- a/test-main.js +++ /dev/null @@ -1,55 +0,0 @@ -var allTestFiles = []; -var TEST_REGEXP = /(spec|test)\.js$/i; - -var pathToModule = function(path) { - return path.replace(/^\/base\//, '').replace(/\.js$/, ''); -}; - -Object.keys(window.__karma__.files).forEach(function(file) { - if (TEST_REGEXP.test(file)) { - allTestFiles.push(pathToModule(file)); - } -}); - -require.config({ - baseUrl: '/base', - - paths: { - 'array_helper': 'src/array_helper', - 'cv_utils': 'src/cv_utils', - 'typedefs': 'src/typedefs', - 'cluster': 'src/cluster', - 'camera_access': 'src/camera_access', - 'events': 'src/events', - 'html_utils': 'src/html_utils', - 'quagga': 'src/quagga', - 'barcode_decoder': 'src/barcode_decoder', - 'barcode_locator': 'src/barcode_locator', - 'barcode_reader': 'src/barcode_reader', - 'bresenham': 'src/bresenham', - 'codabar_reader': 'src/codabar_reader', - 'code_39_reader': 'src/code_39_reader', - 'code_39_vin_reader': 'src/code_39_vin_reader', - 'code_128_reader': 'src/code_128_reader', - 'config': 'src/config', - 'ean_8_reader': 'src/ean_8_reader', - 'ean_reader': 'src/ean_reader', - 'frame_grabber': 'src/frame_grabber', - 'image_debug': 'src/image_debug', - 'image_loader': 'src/image_loader', - 'image_wrapper': 'src/image_wrapper', - 'input_stream': 'src/input_stream', - 'rasterizer': 'src/rasterizer', - 'skeletonizer': 'src/skeletonizer', - 'subImage': 'src/subImage', - 'tracer': 'src/tracer', - 'upc_e_reader': 'src/upc_e_reader', - 'upc_reader': 'src/upc_reader', - 'async': 'node_modules/async/lib/async', - 'gl-matrix': 'node_modules/gl-matrix/dist/gl-matrix-min', - 'result_collector': 'src/result_collector', - 'i2of5_reader': 'src/i2of5_reader' - }, - deps: allTestFiles, - callback: window.__karma__.start -}); diff --git a/test/integration/integration.spec.js b/test/integration/integration.spec.js new file mode 100644 index 00000000..6a6f50fb --- /dev/null +++ b/test/integration/integration.spec.js @@ -0,0 +1,245 @@ +const Quagga = require('../../src/quagga'); +const async = require('async'); + +describe('decodeSingle', function () { + var baseFolder = "base/test/fixtures/"; + + function generateConfig() { + return { + inputStream: { + size: 640 + }, + locator: { + patchSize: "medium", + halfSample: true + }, + numOfWorkers: 0, + decoder: { + readers: ["ean_reader"] + }, + locate: true, + src: null + }; + } + + this.timeout(10000); + + function _runTestSet(testSet, config) { + var readers = config.decoder.readers.slice(), + format, + folder; + + if (typeof readers[0] === 'string'){ + format = readers[0]; + } else { + format = readers[0].format; + } + + folder = baseFolder + format.split('_').slice(0, -1).join('_') + "/"; + + it('should decode ' + folder + " correctly", function(done) { + async.eachSeries(testSet, function (sample, callback) { + config.src = folder + sample.name; + config.readers = readers; + Quagga.decodeSingle(config, function(result) { + console.log(sample.name); + expect(result.codeResult.code).to.equal(sample.result); + expect(result.codeResult.format).to.equal(sample.format); + callback(); + }); + }, function() { + done(); + }); + }); + } + + describe("EAN", function() { + var config = generateConfig(), + testSet = [ + {"name": "image-001.jpg", "result": "3574660239843"}, + {"name": "image-002.jpg", "result": "8032754490297"}, + {"name": "image-003.jpg", "result": "4006209700068"}, + /* {"name": "image-004.jpg", "result": "9002233139084"}, */ + /* {"name": "image-005.jpg", "result": "8004030044005"}, */ + {"name": "image-006.jpg", "result": "4003626011159"}, + {"name": "image-007.jpg", "result": "2111220009686"}, + {"name": "image-008.jpg", "result": "9000275609022"}, + {"name": "image-009.jpg", "result": "9004593978587"}, + {"name": "image-010.jpg", "result": "9002244845578"} + ]; + + testSet.forEach(function(sample) { + sample.format = "ean_13"; + }); + + config.decoder.readers = ['ean_reader']; + _runTestSet(testSet, config); + }); + + describe("Code128", function() { + var config = generateConfig(), + testSet = [ + {"name": "image-001.jpg", "result": "0001285112001000040801"}, + // {"name": "image-002.jpg", "result": "FANAVF1461710"}, + // {"name": "image-003.jpg", "result": "673023"}, + // {"name": "image-004.jpg", "result": "010210150301625334"}, + {"name": "image-005.jpg", "result": "419055603900009001012999"}, + {"name": "image-006.jpg", "result": "419055603900009001012999"}, + {"name": "image-007.jpg", "result": "T 000003552345"}, + {"name": "image-008.jpg", "result": "FANAVF1461710"}, + {"name": "image-009.jpg", "result": "0001285112001000040801"}, + {"name": "image-010.jpg", "result": "673023"} + ]; + + testSet.forEach(function(sample) { + sample.format = "code_128"; + }); + + config.decoder.readers = ['code_128_reader']; + _runTestSet(testSet, config); + }); + + describe("Code39", function() { + var config = generateConfig(), + testSet = [ + {"name": "image-001.jpg", "result": "B3% $DAD$"}, + {"name": "image-003.jpg", "result": "CODE39"}, + {"name": "image-004.jpg", "result": "QUAGGAJS"}, + /* {"name": "image-005.jpg", "result": "CODE39"}, */ + {"name": "image-006.jpg", "result": "2/4-8/16-32"}, + {"name": "image-007.jpg", "result": "2/4-8/16-32"}, + {"name": "image-008.jpg", "result": "CODE39"}, + {"name": "image-009.jpg", "result": "2/4-8/16-32"}, + {"name": "image-010.jpg", "result": "CODE39"} + ]; + + testSet.forEach(function(sample) { + sample.format = "code_39"; + }); + + config.decoder.readers = ['code_39_reader']; + _runTestSet(testSet, config); + }); + + describe("EAN-8", function() { + var config = generateConfig(), + testSet = [ + {"name": "image-001.jpg", "result": "42191605"}, + {"name": "image-002.jpg", "result": "42191605"}, + {"name": "image-003.jpg", "result": "90311208"}, + {"name": "image-004.jpg", "result": "24057257"}, + {"name": "image-005.jpg", "result": "90162602"}, + {"name": "image-006.jpg", "result": "24036153"}, + {"name": "image-007.jpg", "result": "42176817"}, + {"name": "image-008.jpg", "result": "42191605"}, + {"name": "image-009.jpg", "result": "42242215"}, + {"name": "image-010.jpg", "result": "42184799"} + ]; + + testSet.forEach(function(sample) { + sample.format = "ean_8"; + }); + + config.decoder.readers = ['ean_8_reader']; + _runTestSet(testSet, config); + }); + + describe("UPC", function() { + var config = generateConfig(), + testSet = [ + {"name": "image-001.jpg", "result": "882428015268"}, + {"name": "image-002.jpg", "result": "882428015268"}, + {"name": "image-003.jpg", "result": "882428015084"}, + {"name": "image-004.jpg", "result": "882428015343"}, + {"name": "image-005.jpg", "result": "882428015343"}, + /* {"name": "image-006.jpg", "result": "882428015046"}, */ + {"name": "image-007.jpg", "result": "882428015084"}, + {"name": "image-008.jpg", "result": "882428015046"}, + {"name": "image-009.jpg", "result": "039047013551"}, + {"name": "image-010.jpg", "result": "039047013551"} + ]; + + testSet.forEach(function(sample) { + sample.format = "upc_a"; + }); + + config.decoder.readers = ['upc_reader']; + _runTestSet(testSet, config); + }); + + describe("UPC-E", function() { + var config = generateConfig(), + testSet = [ + {"name": "image-001.jpg", "result": "04965802"}, + {"name": "image-002.jpg", "result": "04965802"}, + {"name": "image-003.jpg", "result": "03897425"}, + {"name": "image-004.jpg", "result": "05096893"}, + {"name": "image-005.jpg", "result": "05096893"}, + {"name": "image-006.jpg", "result": "05096893"}, + {"name": "image-007.jpg", "result": "03897425"}, + {"name": "image-008.jpg", "result": "01264904"}, + /*{"name": "image-009.jpg", "result": "01264904"},*/ + {"name": "image-010.jpg", "result": "01264904"} + ]; + + testSet.forEach(function(sample) { + sample.format = "upc_e"; + }); + + config.decoder.readers = ['upc_e_reader']; + _runTestSet(testSet, config); + }); + + describe("Codabar", function() { + var config = generateConfig(), + testSet = [ + {"name": "image-001.jpg", "result": "A10/53+17-70D"}, + {"name": "image-002.jpg", "result": "B546745735B"}, + {"name": "image-003.jpg", "result": "C$399.95A"}, + {"name": "image-004.jpg", "result": "B546745735B"}, + {"name": "image-005.jpg", "result": "C$399.95A"}, + {"name": "image-006.jpg", "result": "B546745735B"}, + {"name": "image-007.jpg", "result": "C$399.95A"}, + {"name": "image-008.jpg", "result": "A16:9/4:3/3:2D"}, + {"name": "image-009.jpg", "result": "C$399.95A"}, + {"name": "image-010.jpg", "result": "C$399.95A"} + ]; + + testSet.forEach(function(sample) { + sample.format = "codabar"; + }); + + config.decoder.readers = ['codabar_reader']; + _runTestSet(testSet, config); + }); + + describe("I2of5 with localization", function() { + var config = { + inputStream: { + size: 800, + singleChannel: false + }, + locator: { + patchSize: "small", + halfSample: false + }, + numOfWorkers: 0, + decoder: { + readers: ["i2of5_reader"] + }, + locate: true, + src: null + }, + testSet = [ + {"name": "image-001.jpg", "result": "2167361334"}, + {"name": "image-002.jpg", "result": "2167361334"}, + {"name": "image-003.jpg", "result": "2167361334"}, + {"name": "image-004.jpg", "result": "2167361334"}, + {"name": "image-005.jpg", "result": "2167361334"} + ]; + testSet.forEach(function(sample) { + sample.format = "i2of5"; + }); + _runTestSet(testSet, config); + }); +}); diff --git a/test/spec/array_helper.spec.js b/test/spec/array_helper.spec.js new file mode 100644 index 00000000..e0c24f3c --- /dev/null +++ b/test/spec/array_helper.spec.js @@ -0,0 +1,53 @@ +const ArrayHelper = require('../../src/array_helper'); + +describe('init', function() { + it('initializes an array with the given value', function() { + var input = [0, 0, 0]; + ArrayHelper.init(input, 5); + expect(input).to.deep.equal([5, 5, 5]); + }); +}); + +describe('shuffle', function() { + before(function() { + sinon.stub(Math, 'random').returns(0.5); + }); + + after(function() { + sinon.restore(Math); + }); + it('shuffles the content of an array', function() { + var input = [1, 2, 3]; + expect(ArrayHelper.shuffle(input)).to.deep.equal([3, 1, 2]); + }); +}); + +describe('toPointList', function() { + it('converts an Array to a List of poitns', function() { + var input = [[1, 2], [2, 2], [3, 2]]; + expect(ArrayHelper.toPointList(input)).to.equal("[[1,2],\r\n[2,2],\r\n[3,2]]"); + }); +}); + +describe('threshold', function() { + it('returns all elements above the given threshold', function() { + var input = [1, 2, 3]; + expect(ArrayHelper.threshold(input, 2, function(score) { + return score * 1.5; + })).to.deep.equal([2, 3]); + }); +}); + +describe('maxIndex', function() { + it('gets the index of the biggest element in the array', function() { + var input = [1, 2, 3]; + expect(ArrayHelper.maxIndex(input)).to.equal(2); + }); +}); + +describe('max', function() { + it('gets the biggest element in the array', function() { + var input = [1, 3, 2]; + expect(ArrayHelper.max(input)).to.equal(3); + }); +}); diff --git a/test/spec/barcode_locator.spec.js b/test/spec/barcode_locator.spec.js new file mode 100644 index 00000000..2b573cd1 --- /dev/null +++ b/test/spec/barcode_locator.spec.js @@ -0,0 +1,130 @@ +const BarcodeLocator = require('../../src/barcode_locator'); +const Config = require('../../src/config'); +const merge = require('lodash/object/merge'); + +describe('checkImageConstraints', function() { + var config, + inputStream, + imageSize, + streamConfig = {}; + + beforeEach(function() { + imageSize = { + x: 640, y: 480 + }; + config = merge({}, Config); + inputStream = { + getWidth: function() { + return imageSize.x; + }, + getHeight: function() { + return imageSize.y; + }, + setWidth: function() {}, + setHeight: function() {}, + setTopRight: function() {}, + setCanvasSize: function() {}, + getConfig: function() { + return streamConfig; + } + }; + sinon.stub(inputStream, "setWidth", function(width) { + imageSize.x = width; + }); + sinon.stub(inputStream, "setHeight", function(height) { + imageSize.y = height; + }); + sinon.stub(inputStream, "setTopRight"); + sinon.stub(inputStream, "setCanvasSize"); + }); + + afterEach(function() { + inputStream.setWidth.restore(); + inputStream.setHeight.restore(); + }); + + it('should not adjust the image-size if not needed', function() { + var expected = {x: imageSize.x, y: imageSize.y}; + BarcodeLocator.checkImageConstraints(inputStream, config.locator); + expect(inputStream.getWidth()).to.be.equal(expected.x); + expect(inputStream.getHeight()).to.be.equal(expected.y); + }); + + it('should adjust the image-size', function() { + var expected = {x: imageSize.x, y: imageSize.y}; + + config.locator.halfSample = true; + imageSize.y += 1; + BarcodeLocator.checkImageConstraints(inputStream, config.locator); + expect(inputStream.getWidth()).to.be.equal(expected.x); + expect(inputStream.getHeight()).to.be.equal(expected.y); + }); + + it('should adjust the image-size', function() { + var expected = {x: imageSize.x, y: imageSize.y}; + + imageSize.y += 1; + config.locator.halfSample = false; + BarcodeLocator.checkImageConstraints(inputStream, config.locator); + expect(inputStream.getHeight()).to.be.equal(expected.y); + expect(inputStream.getWidth()).to.be.equal(expected.x); + }); + + it("should take the defined area into account", function() { + var expectedSize = { + x: 420, + y: 315 + }, + expectedTopRight = { + x: 115, + y: 52 + }, + expectedCanvasSize = { + x: 640, + y: 480 + }; + + streamConfig.area = { + top: "11%", + right: "15%", + bottom: "20%", + left: "18%" + }; + + config.locator.halfSample = false; + BarcodeLocator.checkImageConstraints(inputStream, config.locator); + expect(inputStream.getHeight()).to.be.equal(expectedSize.y); + expect(inputStream.getWidth()).to.be.equal(expectedSize.x); + expect(inputStream.setTopRight.getCall(0).args[0]).to.deep.equal(expectedTopRight); + expect(inputStream.setCanvasSize.getCall(0).args[0]).to.deep.equal(expectedCanvasSize); + }); + + it("should return the original size if set to full image", function() { + var expectedSize = { + x: 640, + y: 480 + }, + expectedTopRight = { + x: 0, + y: 0 + }, + expectedCanvasSize = { + x: 640, + y: 480 + }; + + streamConfig.area = { + top: "0%", + right: "0%", + bottom: "0%", + left: "0%" + }; + + config.locator.halfSample = false; + BarcodeLocator.checkImageConstraints(inputStream, config.locator); + expect(inputStream.getHeight()).to.be.equal(expectedSize.y); + expect(inputStream.getWidth()).to.be.equal(expectedSize.x); + expect(inputStream.setTopRight.getCall(0).args[0]).to.deep.equal(expectedTopRight); + expect(inputStream.setCanvasSize.getCall(0).args[0]).to.deep.equal(expectedCanvasSize); + }); +}); diff --git a/test/spec/camera_access.spec.js b/test/spec/camera_access.spec.js new file mode 100644 index 00000000..e583bf5d --- /dev/null +++ b/test/spec/camera_access.spec.js @@ -0,0 +1,116 @@ +const CameraAccess = require('../../src/camera_access'); + +var originalURL, + originalMediaStreamTrack, + video, + stream; + +beforeEach(function() { + var tracks = [{ + stop: function() {} + }]; + + originalURL = window.URL; + originalMediaStreamTrack = window.MediaStreamTrack; + window.MediaStreamTrack = {}; + window.URL = null; + + stream = { + getVideoTracks: function() { + return tracks; + } + }; + sinon.spy(tracks[0], "stop"); + + video = { + src: null, + addEventListener: function() {}, + removeEventListener: function() {}, + play: function() {}, + videoWidth: 320, + videoHeight: 480 + }; + sinon.stub(video, "addEventListener", function(event, cb) { + cb(); + }); + sinon.stub(video, "play"); +}); + +afterEach(function() { + window.URL = originalURL; + window.MediaStreamTrack = originalMediaStreamTrack; +}); + +describe('success', function() { + beforeEach(function() { + sinon.stub(navigator, "getUserMedia", function(constraints, success) { + success(stream); + }); + }); + + afterEach(function() { + navigator.getUserMedia.restore(); + }); + describe('request', function () { + it('should request the camera', function (done) { + CameraAccess.request(video, {}, function () { + expect(navigator.getUserMedia.calledOnce).to.equal(true); + expect(video.src).to.deep.equal(stream); + done(); + }); + }); + }); + + describe('release', function () { + it('should release the camera', function (done) { + CameraAccess.request(video, {}, function () { + expect(video.src).to.deep.equal(stream); + CameraAccess.release(); + expect(video.src.getVideoTracks()).to.have.length(1); + expect(video.src.getVideoTracks()[0].stop.calledOnce).to.equal(true); + done(); + }); + }); + }); +}); + +describe('failure', function() { + describe("permission denied", function(){ + before(function() { + sinon.stub(navigator, "getUserMedia", function(constraints, success, failure) { + failure(new Error()); + }); + }); + + after(function() { + navigator.getUserMedia.restore(); + }); + + it('should throw if getUserMedia not available', function(done) { + CameraAccess.request(video, {}, function(err) { + expect(err).to.be.defined; + done(); + }); + }); + }); + + describe("not available", function(){ + var originalGetUserMedia; + + before(function() { + originalGetUserMedia = navigator.getUserMedia; + navigator.getUserMedia = undefined; + }); + + after(function() { + navigator.getUserMedia = originalGetUserMedia; + }); + + it('should throw if getUserMedia not available', function(done) { + CameraAccess.request(video, {}, function(err) { + expect(err).to.be.defined; + done(); + }); + }); + }); +}); diff --git a/test/spec/cv_utils.spec.js b/test/spec/cv_utils.spec.js new file mode 100644 index 00000000..0da49899 --- /dev/null +++ b/test/spec/cv_utils.spec.js @@ -0,0 +1,144 @@ +const CVUtils = require('../../src/cv_utils'); + +describe('imageRef', function() { + it('gets the image Reference for a coordinate', function() { + var res = CVUtils.imageRef(1, 2); + expect(res.x).to.equal(1); + expect(res.y).to.equal(2); + expect(res.toVec2()[0]).to.equal(1); + }); +}); + +describe('calculatePatchSize', function() { + it('should not throw an error in case of valid image size', function() { + var expected = {x: 32, y: 32}, + patchSize = CVUtils.calculatePatchSize("medium", {x: 640, y: 480}); + + expect(patchSize).to.be.deep.equal(expected); + }); + + it('should thow an error if image size it not valid', function() { + var expected = {x: 32, y: 32}, + patchSize = CVUtils.calculatePatchSize("medium", {x: 640, y: 480}); + + expect(patchSize).to.be.deep.equal(expected); + }); +}); + +describe('_parseCSSDimensionValues', function() { + it("should convert a percentual value correctly", function() { + var expected = { + value: 10, + unit: "%" + }, + result = CVUtils._parseCSSDimensionValues("10%"); + + expect(result).to.be.deep.equal(expected); + }); + + it("should convert a 0% value correctly", function() { + var expected = { + value: 100, + unit: "%" + }, + result = CVUtils._parseCSSDimensionValues("100%"); + + expect(result).to.be.deep.equal(expected); + }); + + it("should convert a 100% value correctly", function() { + var expected = { + value: 0, + unit: "%" + }, + result = CVUtils._parseCSSDimensionValues("0%"); + + expect(result).to.be.deep.equal(expected); + }); + + it("should convert a pixel value to percentage", function() { + var expected = { + value: 26.3, + unit: "%" + }, + result = CVUtils._parseCSSDimensionValues("26.3px"); + + console.log(result); + expect(result).to.be.deep.equal(expected); + }); +}); + +describe("_dimensionsConverters", function(){ + var context; + + beforeEach(function() { + context = { + width: 640, + height: 480 + }; + }); + + it("should convert a top-value correclty", function() { + var expected = 48, + result = CVUtils._dimensionsConverters.top({value: 10, unit: "%"}, context); + + expect(result).to.be.equal(expected); + }); + + it("should convert a right-value correclty", function() { + var expected = 640 - 128, + result = CVUtils._dimensionsConverters.right({value: 20, unit: "%"}, context); + + expect(result).to.be.equal(expected); + }); + + it("should convert a bottom-value correclty", function() { + var expected = 480 - 77, + result = CVUtils._dimensionsConverters.bottom({value: 16, unit: "%"}, context); + + expect(result).to.be.equal(expected); + }); + + it("should convert a left-value correclty", function() { + var expected = 57, + result = CVUtils._dimensionsConverters.left({value: 9, unit: "%"}, context); + + expect(result).to.be.equal(expected); + }); +}); + +describe("computeImageArea", function() { + it("should calculate an image-area", function() { + var expected = { + sx: 115, + sy: 48, + sw: 429, + sh: 336 + }, + result = CVUtils.computeImageArea(640, 480, { + top: "10%", + right: "15%", + bottom: "20%", + left: "18%" + }); + + expect(result).to.be.deep.equal(expected); + }); + + it("should calculate full image-area", function() { + var expected = { + sx: 0, + sy: 0, + sw: 640, + sh: 480 + }, + result = CVUtils.computeImageArea(640, 480, { + top: "0%", + right: "0%", + bottom: "0%", + left: "0%" + }); + + expect(result).to.be.deep.equal(expected); + }); +}); diff --git a/test/spec/events.spec.js b/test/spec/events.spec.js new file mode 100644 index 00000000..e9bbce93 --- /dev/null +++ b/test/spec/events.spec.js @@ -0,0 +1,114 @@ +const Events = require('../../src/events'); + +beforeEach(function() { + Events.unsubscribe(); +}); +describe("subscribe", function() { + + + it("should call one callback for a single event", function() { + var callbackA = sinon.stub(), + callbackB = sinon.stub(); + + Events.subscribe("test", callbackA); + Events.subscribe("test", callbackB); + Events.publish("test"); + + expect(callbackA.calledOnce).to.be.equal(true); + expect(callbackB.calledOnce).to.be.equal(true); + }); + + it("should call one callback twice if published twice", function() { + var callback = sinon.stub(); + + Events.subscribe("test", callback); + + Events.publish("test"); + Events.publish("test"); + + expect(callback.calledTwice).to.be.equal(true); + }); + + it("should call the callback asynchronuously", function(done) { + var test = { + callback: function() { + + } + }; + + sinon.stub(test, "callback", function() { + expect(test.callback.calledOnce).to.be.true; + done(); + }); + Events.subscribe("test", test.callback, true); + Events.publish("test"); + expect(test.callback.called).to.be.false; + }); +}); + +describe("once", function() { + it("should call the callback once, even when published twice", function() { + var callbackA = sinon.stub(), + callbackB = sinon.stub(); + + Events.once("test", callbackA); + Events.subscribe("test", callbackB); + + Events.publish("test"); + Events.publish("test"); + + expect(callbackA.calledOnce).to.be.equal(true); + expect(callbackB.calledTwice).to.be.equal(true); + }); +}); + +describe("unsubscribe", function() { + it("should unsubscribe all callbacks from a single event", function() { + var callbackA = sinon.stub(), + callbackB = sinon.stub(), + callbackC = sinon.stub(); + + Events.subscribe("test", callbackA); + Events.subscribe("test", callbackB); + Events.subscribe("testC", callbackC); + + Events.publish("test"); + + expect(callbackC.called).to.be.equal(false); + expect(callbackA.calledOnce).to.be.equal(true); + expect(callbackB.calledOnce).to.be.equal(true); + + Events.publish("testC"); + + expect(callbackC.calledOnce).to.be.equal(true); + expect(callbackA.calledOnce).to.be.equal(true); + expect(callbackB.calledOnce).to.be.equal(true); + + Events.unsubscribe("test"); + Events.publish("test"); + + expect(callbackC.calledOnce).to.be.equal(true); + expect(callbackA.calledOnce).to.be.equal(true); + expect(callbackB.calledOnce).to.be.equal(true); + }); + + it("should unsubscribe a single callback from a single event", function() { + var callbackA = sinon.stub(), + callbackB = sinon.stub(); + + Events.subscribe("test", callbackA); + Events.subscribe("test", callbackB); + + Events.publish("test"); + + expect(callbackA.calledOnce).to.be.equal(true); + expect(callbackB.calledOnce).to.be.equal(true); + + + Events.unsubscribe("test", callbackB); + Events.publish("test"); + + expect(callbackA.calledTwice).to.be.equal(true); + expect(callbackB.calledOnce).to.be.equal(true); + }); +}); diff --git a/test/spec/result_collector.spec.js b/test/spec/result_collector.spec.js new file mode 100644 index 00000000..0c898297 --- /dev/null +++ b/test/spec/result_collector.spec.js @@ -0,0 +1,103 @@ +const ResultCollector = require('../../src/result_collector'); +const ImageDebug = require('../../src/image_debug'); + +var canvasMock, + imageSize, + config; + +beforeEach(function() { + imageSize = {x: 320, y: 240}; + config = { + capture: true, + capacity: 20, + blacklist: [{code: "3574660239843", format: "ean_13"}], + filter: function() { + return true; + } + }; + canvasMock = { + getContext: function() { + return {}; + }, + toDataURL: sinon.spy(), + width: 0, + height: 0 + }; + sinon.stub(document, "createElement", function(type) { + if (type === "canvas") { + return canvasMock; + } + }); +}); + +afterEach(function() { + document.createElement.restore(); +}); + + +describe('create', function () { + it("should return a new collector", function() { + ResultCollector.create(config); + expect(document.createElement.calledOnce).to.be.equal(true); + expect(document.createElement.getCall(0).args[0]).to.equal("canvas"); + }); +}); + +describe('addResult', function() { + beforeEach(function() { + sinon.stub(ImageDebug, "drawImage", function() {}); + }); + + afterEach(function() { + ImageDebug.drawImage.restore(); + }); + + it("should not add result if capacity is full", function(){ + config.capacity = 1; + var collector = ResultCollector.create(config); + collector.addResult([], imageSize, {}); + collector.addResult([], imageSize, {}); + collector.addResult([], imageSize, {}); + expect(collector.getResults()).to.have.length(1); + }); + + it("should only add results which match constraints", function(){ + var collector = ResultCollector.create(config), + results; + + collector.addResult([], imageSize, {code: "423423443", format: "ean_13"}); + collector.addResult([], imageSize, {code: "3574660239843", format: "ean_13"}); + collector.addResult([], imageSize, {code: "3574660239843", format: "code_128"}); + + results = collector.getResults(); + expect(results).to.have.length(2); + + results.forEach(function(result) { + expect(result).not.to.deep.equal(config.blacklist[0]); + }); + }); + + it("should add result if no filter is set", function() { + delete config.filter; + var collector = ResultCollector.create(config); + + collector.addResult([], imageSize, {code: "423423443", format: "ean_13"}); + expect(collector.getResults()).to.have.length(1); + }); + + it("should not add results if filter returns false", function() { + config.filter = () => (false); + var collector = ResultCollector.create(config); + + collector.addResult([], imageSize, {code: "423423443", format: "ean_13"}); + expect(collector.getResults()).to.have.length(0); + }); + + it("should add result if no blacklist is set", function() { + delete config.blacklist; + var collector = ResultCollector.create(config); + + collector.addResult([], imageSize, {code: "3574660239843", format: "ean_13"}); + expect(collector.getResults()).to.have.length(1); + }); +}); diff --git a/test/test-main-integration.js b/test/test-main-integration.js new file mode 100644 index 00000000..9a7cc0d5 --- /dev/null +++ b/test/test-main-integration.js @@ -0,0 +1,8 @@ +require('events').EventEmitter.prototype._maxListeners = 0; +require('core-js/es5'); + +const testsContext = require.context("./integration", true, /.*js$/); +testsContext.keys().forEach(testsContext); + +const componentsContext = require.context('../src/', true, /\.*js$/); +componentsContext.keys().forEach(componentsContext); diff --git a/test/test-main.js b/test/test-main.js new file mode 100644 index 00000000..56eb6ff4 --- /dev/null +++ b/test/test-main.js @@ -0,0 +1,8 @@ +require('events').EventEmitter.prototype._maxListeners = 0; +require('core-js/es5'); + +const testsContext = require.context("./spec", true, /.*js$/); +testsContext.keys().forEach(testsContext); + +const componentsContext = require.context('../src/', true, /\.*js$/); +componentsContext.keys().forEach(componentsContext); From 03e9bee015b859a634aec243a3be3fbe56476a1d Mon Sep 17 00:00:00 2001 From: Christoph Oberhofer Date: Mon, 5 Oct 2015 22:46:53 +0200 Subject: [PATCH 3/7] Fixed code-style errors --- .eslintrc | 7 +- src/barcode_decoder.js | 21 +++-- src/barcode_locator.js | 6 +- src/cluster.js | 22 +++--- src/codabar_reader.js | 9 ++- src/code_39_vin_reader.js | 2 +- src/cv_utils.js | 157 +++++++++++++++++++++++++------------- src/ean_reader.js | 52 ++++++------- src/events.js | 14 ++-- src/frame_grabber.js | 2 +- src/i2of5_reader.js | 76 +++++++++--------- src/image_debug.js | 4 +- src/image_loader.js | 8 +- src/image_wrapper.js | 101 ++++-------------------- src/input_stream.js | 29 ++++--- src/quagga.js | 99 ++++++++++++------------ src/rasterizer.js | 48 ++++++------ src/result_collector.js | 5 +- src/skeletonizer.js | 26 +++++-- src/subImage.js | 4 +- src/tracer.js | 28 +++---- src/upc_e_reader.js | 17 ++--- src/upc_reader.js | 1 - 23 files changed, 370 insertions(+), 368 deletions(-) diff --git a/.eslintrc b/.eslintrc index 139e4f1f..d857d301 100644 --- a/.eslintrc +++ b/.eslintrc @@ -65,11 +65,16 @@ "no-mixed-spaces-and-tabs": 2, "no-multiple-empty-lines": 2, "semi-spacing": 2, + "dot-notation": 2, "no-spaced-func": 1, + "no-shadow": 2, + "no-undef": 2, "padded-blocks": [2, "never"], "semi": [2, "always"], "space-after-keywords": [2, "always"], "space-infix-ops": 2, - "max-len" : [1, 120] + "max-len" : [1, 120], + "consistent-return": 2, + "yoda": 2 } } diff --git a/src/barcode_decoder.js b/src/barcode_decoder.js index 15b5b7a6..54d1e1f4 100644 --- a/src/barcode_decoder.js +++ b/src/barcode_decoder.js @@ -10,7 +10,7 @@ import EAN8Reader from './ean_8_reader'; import UPCEReader from './upc_e_reader'; import I2of5Reader from './i2of5_reader'; -var readers = { +const READERS = { code_128_reader: Code128Reader, ean_reader: EANReader, ean_8_reader: EAN8Reader, @@ -74,16 +74,16 @@ export default { function initReaders() { config.readers.forEach(function(readerConfig) { var reader, - config = {}; + configuration = {}; if (typeof readerConfig === 'object') { reader = readerConfig.format; - config = readerConfig.config; + configuration = readerConfig.config; } else if (typeof readerConfig === 'string') { reader = readerConfig; } console.log("Before registering reader: ", reader); - _barcodeReaders.push(new readers[reader](config)); + _barcodeReaders.push(new READERS[reader](configuration)); }); console.log("Registered Readers: " + _barcodeReaders .map((reader) => JSON.stringify({format: reader.FORMAT, config: reader.config})) @@ -166,14 +166,13 @@ export default { for ( i = 0; i < _barcodeReaders.length && result === null; i++) { result = _barcodeReaders[i].decodePattern(barcodeLine.line); } - if(result === null){ + if (result === null){ return null; } return { codeResult: result, barcodeLine: barcodeLine }; - } /** @@ -255,11 +254,11 @@ export default { } return { - codeResult : result.codeResult, - line : line, - angle : lineAngle, - pattern : result.barcodeLine.line, - threshold : result.barcodeLine.threshold + codeResult: result.codeResult, + line: line, + angle: lineAngle, + pattern: result.barcodeLine.line, + threshold: result.barcodeLine.threshold }; } diff --git a/src/barcode_locator.js b/src/barcode_locator.js index 9fc742b9..1c6d72cf 100644 --- a/src/barcode_locator.js +++ b/src/barcode_locator.js @@ -30,7 +30,7 @@ var _config, _skeletonizer, vec2 = glMatrix.vec2, mat2 = glMatrix.mat2, - self = (typeof window !== 'undefined') ? window : self; + self = (typeof window !== 'undefined') ? window : self; // eslint-disable-line consistent-this function initBuffers() { var skeletonImageData; @@ -441,7 +441,6 @@ function rasterizeAngularSimilarity(patchesFound) { var x, y, currentPatch, - patch, idx, dir, current = { @@ -465,9 +464,8 @@ function rasterizeAngularSimilarity(patchesFound) { continue; } - patch = _imageToPatchGrid.data[idx]; if (_patchLabelGrid.data[idx] === 0) { - similarity = Math.abs(vec2.dot(patch.vec, currentPatch.vec)); + similarity = Math.abs(vec2.dot(_imageToPatchGrid.data[idx].vec, currentPatch.vec)); if (similarity > threshold) { trace(idx); } diff --git a/src/cluster.js b/src/cluster.js index cbd64577..de4d1418 100644 --- a/src/cluster.js +++ b/src/cluster.js @@ -16,9 +16,9 @@ export default { updateCenter(); } - function add(point) { - pointMap[point.id] = point; - points.push(point); + function add(pointToAdd) { + pointMap[pointToAdd.id] = pointToAdd; + points.push(pointToAdd); } function updateCenter() { @@ -33,15 +33,15 @@ export default { init(); return { - add: function(point) { - if (!pointMap[point.id]) { - add(point); + add: function(pointToAdd) { + if (!pointMap[pointToAdd.id]) { + add(pointToAdd); updateCenter(); } }, - fits: function(point) { + fits: function(otherPoint) { // check cosine similarity to center-angle - var similarity = Math.abs(vec2.dot(point.point.vec, center.vec)); + var similarity = Math.abs(vec2.dot(otherPoint.point.vec, center.vec)); if (similarity > threshold) { return true; } @@ -55,10 +55,10 @@ export default { } }; }, - createPoint: function(point, id, property) { + createPoint: function(newPoint, id, property) { return { - rad: point[property], - point: point, + rad: newPoint[property], + point: newPoint, id: id }; } diff --git a/src/codabar_reader.js b/src/codabar_reader.js index fe6dd498..25e749bc 100644 --- a/src/codabar_reader.js +++ b/src/codabar_reader.js @@ -132,10 +132,11 @@ CodabarReader.prototype._thresholdResultPattern = function(result, startCounter) } ["space", "bar"].forEach(function(key) { - var kind = categorization[key]; - kind.wide.min = Math.floor((kind.narrow.size / kind.narrow.counts + kind.wide.size / kind.wide.counts) / 2); - kind.narrow.max = Math.ceil(kind.wide.min); - kind.wide.max = Math.ceil((kind.wide.size * self.MAX_ACCEPTABLE + self.PADDING) / kind.wide.counts); + var newkind = categorization[key]; + newkind.wide.min = + Math.floor((newkind.narrow.size / newkind.narrow.counts + newkind.wide.size / newkind.wide.counts) / 2); + newkind.narrow.max = Math.ceil(newkind.wide.min); + newkind.wide.max = Math.ceil((newkind.wide.size * self.MAX_ACCEPTABLE + self.PADDING) / newkind.wide.counts); }); return categorization; diff --git a/src/code_39_vin_reader.js b/src/code_39_vin_reader.js index 3069e59c..ae61bd6a 100644 --- a/src/code_39_vin_reader.js +++ b/src/code_39_vin_reader.js @@ -23,7 +23,7 @@ Code39VINReader.prototype._decode = function() { var code = result.code; if (!code) { - return; + return null; } code = code.replace(patterns.IOQ, ''); diff --git a/src/cv_utils.js b/src/cv_utils.js index 2380e559..18485fd6 100644 --- a/src/cv_utils.js +++ b/src/cv_utils.js @@ -1,5 +1,5 @@ import Cluster2 from './cluster'; -import ArrayHelper from './array_helper'; +import ArrayHelper from './array_helper'; import {vec2, vec3} from 'gl-matrix'; var CVUtils = {}; @@ -11,15 +11,15 @@ var CVUtils = {}; */ CVUtils.imageRef = function(x, y) { var that = { - x : x, - y : y, - toVec2 : function() { + x: x, + y: y, + toVec2: function() { return vec2.clone([this.x, this.y]); }, - toVec3 : function() { + toVec3: function() { return vec3.clone([this.x, this.y, 1]); }, - round : function() { + round: function() { this.x = this.x > 0.0 ? Math.floor(this.x + 0.5) : Math.floor(this.x - 0.5); this.y = this.y > 0.0 ? Math.floor(this.y + 0.5) : Math.floor(this.y - 0.5); return this; @@ -65,7 +65,8 @@ CVUtils.computeIntegralImage2 = function(imageWrapper, integralWrapper) { posC = y * width; posD = (y - 1) * width; for ( x = 1; x < width; x++) { - integralImageData[posA] += imageData[posA] + integralImageData[posB] + integralImageData[posC] - integralImageData[posD]; + integralImageData[posA] += + imageData[posA] + integralImageData[posB] + integralImageData[posC] - integralImageData[posD]; posA++; posB++; posC++; @@ -133,7 +134,7 @@ CVUtils.sharpenLine = function(line) { for (i = 1; i < length - 1; i++) { right = line[i + 1]; // -1 4 -1 kernel - line[i-1] = (((center * 2) - left - right)) & 255; + line[i - 1] = (((center * 2) - left - right)) & 255; left = center; center = right; } @@ -247,12 +248,12 @@ CVUtils.cluster = function(points, threshold, property) { property = "rad"; } - function addToCluster(point) { + function addToCluster(newPoint) { var found = false; for ( k = 0; k < clusters.length; k++) { cluster = clusters[k]; - if (cluster.fits(point)) { - cluster.add(point); + if (cluster.fits(newPoint)) { + cluster.add(newPoint); found = true; } } @@ -266,20 +267,21 @@ CVUtils.cluster = function(points, threshold, property) { clusters.push(Cluster2.create(point, threshold)); } } - return clusters; - }; CVUtils.Tracer = { - trace : function(points, vec) { + trace: function(points, vec) { var iteration, maxIterations = 10, top = [], result = [], centerPos = 0, currentPos = 0; function trace(idx, forward) { var from, to, toIdx, predictedPos, thresholdX = 1, thresholdY = Math.abs(vec[1] / 10), found = false; function match(pos, predicted) { - if (pos.x > (predicted.x - thresholdX) && pos.x < (predicted.x + thresholdX) && pos.y > (predicted.y - thresholdY) && pos.y < (predicted.y + thresholdY)) { + if (pos.x > (predicted.x - thresholdX) + && pos.x < (predicted.x + thresholdX) + && pos.y > (predicted.y - thresholdY) + && pos.y < (predicted.y + thresholdY)) { return true; } else { return false; @@ -292,13 +294,13 @@ CVUtils.Tracer = { from = points[idx]; if (forward) { predictedPos = { - x : from.x + vec[0], - y : from.y + vec[1] + x: from.x + vec[0], + y: from.y + vec[1] }; } else { predictedPos = { - x : from.x - vec[0], - y : from.y - vec[1] + x: from.x - vec[0], + y: from.y - vec[1] }; } @@ -334,9 +336,7 @@ CVUtils.Tracer = { result = top; } } - return result; - } }; @@ -344,7 +344,17 @@ CVUtils.DILATE = 1; CVUtils.ERODE = 2; CVUtils.dilate = function(inImageWrapper, outImageWrapper) { - var v, u, inImageData = inImageWrapper.data, outImageData = outImageWrapper.data, height = inImageWrapper.size.y, width = inImageWrapper.size.x, sum, yStart1, yStart2, xStart1, xStart2; + var v, + u, + inImageData = inImageWrapper.data, + outImageData = outImageWrapper.data, + height = inImageWrapper.size.y, + width = inImageWrapper.size.x, + sum, + yStart1, + yStart2, + xStart1, + xStart2; for ( v = 1; v < height - 1; v++) { for ( u = 1; u < width - 1; u++) { @@ -352,17 +362,26 @@ CVUtils.dilate = function(inImageWrapper, outImageWrapper) { yStart2 = v + 1; xStart1 = u - 1; xStart2 = u + 1; - sum = inImageData[yStart1 * width + xStart1]/* + inImageData[yStart1*width+u] */ + inImageData[yStart1 * width + xStart2] + - /* inImageData[v*width+xStart1] + */ - inImageData[v * width + u] + /* inImageData[v*width+xStart2] +*/ - inImageData[yStart2 * width + xStart1]/* + inImageData[yStart2*width+u]*/ + inImageData[yStart2 * width + xStart2]; + sum = inImageData[yStart1 * width + xStart1] + inImageData[yStart1 * width + xStart2] + + inImageData[v * width + u] + + inImageData[yStart2 * width + xStart1] + inImageData[yStart2 * width + xStart2]; outImageData[v * width + u] = sum > 0 ? 1 : 0; } } }; CVUtils.erode = function(inImageWrapper, outImageWrapper) { - var v, u, inImageData = inImageWrapper.data, outImageData = outImageWrapper.data, height = inImageWrapper.size.y, width = inImageWrapper.size.x, sum, yStart1, yStart2, xStart1, xStart2; + var v, + u, + inImageData = inImageWrapper.data, + outImageData = outImageWrapper.data, + height = inImageWrapper.size.y, + width = inImageWrapper.size.x, + sum, + yStart1, + yStart2, + xStart1, + xStart2; for ( v = 1; v < height - 1; v++) { for ( u = 1; u < width - 1; u++) { @@ -370,10 +389,9 @@ CVUtils.erode = function(inImageWrapper, outImageWrapper) { yStart2 = v + 1; xStart1 = u - 1; xStart2 = u + 1; - sum = inImageData[yStart1 * width + xStart1]/* + inImageData[yStart1*width+u] */ + inImageData[yStart1 * width + xStart2] + - /* inImageData[v*width+xStart1] + */ - inImageData[v * width + u] + /* inImageData[v*width+xStart2] +*/ - inImageData[yStart2 * width + xStart1]/* + inImageData[yStart2*width+u]*/ + inImageData[yStart2 * width + xStart2]; + sum = inImageData[yStart1 * width + xStart1] + inImageData[yStart1 * width + xStart2] + + inImageData[v * width + u] + + inImageData[yStart2 * width + xStart1] + inImageData[yStart2 * width + xStart2]; outImageData[v * width + u] = sum === 5 ? 1 : 0; } } @@ -383,7 +401,10 @@ CVUtils.subtract = function(aImageWrapper, bImageWrapper, resultImageWrapper) { if (!resultImageWrapper) { resultImageWrapper = aImageWrapper; } - var length = aImageWrapper.data.length, aImageData = aImageWrapper.data, bImageData = bImageWrapper.data, cImageData = resultImageWrapper.data; + var length = aImageWrapper.data.length, + aImageData = aImageWrapper.data, + bImageData = bImageWrapper.data, + cImageData = resultImageWrapper.data; while (length--) { cImageData[length] = aImageData[length] - bImageData[length]; @@ -394,7 +415,10 @@ CVUtils.bitwiseOr = function(aImageWrapper, bImageWrapper, resultImageWrapper) { if (!resultImageWrapper) { resultImageWrapper = aImageWrapper; } - var length = aImageWrapper.data.length, aImageData = aImageWrapper.data, bImageData = bImageWrapper.data, cImageData = resultImageWrapper.data; + var length = aImageWrapper.data.length, + aImageData = aImageWrapper.data, + bImageData = bImageWrapper.data, + cImageData = resultImageWrapper.data; while (length--) { cImageData[length] = aImageData[length] || bImageData[length]; @@ -415,8 +439,8 @@ CVUtils.topGeneric = function(list, top, scoreFunc) { for ( i = 0; i < top; i++) { queue[i] = { - score : 0, - item : null + score: 0, + item: null }; } @@ -461,7 +485,19 @@ CVUtils.grayAndHalfSampleFromCanvasData = function(canvasData, size, outArray) { while (bottomRowIdx < endIdx) { for ( i = 0; i < outWidth; i++) { - outArray[outImgIdx] = Math.floor(((0.299 * canvasData[topRowIdx * 4 + 0] + 0.587 * canvasData[topRowIdx * 4 + 1] + 0.114 * canvasData[topRowIdx * 4 + 2]) + (0.299 * canvasData[(topRowIdx + 1) * 4 + 0] + 0.587 * canvasData[(topRowIdx + 1) * 4 + 1] + 0.114 * canvasData[(topRowIdx + 1) * 4 + 2]) + (0.299 * canvasData[(bottomRowIdx) * 4 + 0] + 0.587 * canvasData[(bottomRowIdx) * 4 + 1] + 0.114 * canvasData[(bottomRowIdx) * 4 + 2]) + (0.299 * canvasData[(bottomRowIdx + 1) * 4 + 0] + 0.587 * canvasData[(bottomRowIdx + 1) * 4 + 1] + 0.114 * canvasData[(bottomRowIdx + 1) * 4 + 2])) / 4); + outArray[outImgIdx] = Math.floor(( + (0.299 * canvasData[topRowIdx * 4 + 0] + + 0.587 * canvasData[topRowIdx * 4 + 1] + + 0.114 * canvasData[topRowIdx * 4 + 2]) + + (0.299 * canvasData[(topRowIdx + 1) * 4 + 0] + + 0.587 * canvasData[(topRowIdx + 1) * 4 + 1] + + 0.114 * canvasData[(topRowIdx + 1) * 4 + 2]) + + (0.299 * canvasData[(bottomRowIdx) * 4 + 0] + + 0.587 * canvasData[(bottomRowIdx) * 4 + 1] + + 0.114 * canvasData[(bottomRowIdx) * 4 + 2]) + + (0.299 * canvasData[(bottomRowIdx + 1) * 4 + 0] + + 0.587 * canvasData[(bottomRowIdx + 1) * 4 + 1] + + 0.114 * canvasData[(bottomRowIdx + 1) * 4 + 2])) / 4); outImgIdx++; topRowIdx = topRowIdx + 2; bottomRowIdx = bottomRowIdx + 2; @@ -469,7 +505,6 @@ CVUtils.grayAndHalfSampleFromCanvasData = function(canvasData, size, outArray) { topRowIdx = topRowIdx + inWidth; bottomRowIdx = bottomRowIdx + inWidth; } - }; CVUtils.computeGray = function(imageData, outArray, config) { @@ -483,14 +518,16 @@ CVUtils.computeGray = function(imageData, outArray, config) { } } else { for (i = 0; i < l; i++) { - outArray[i] = Math.floor(0.299 * imageData[i * 4 + 0] + 0.587 * imageData[i * 4 + 1] + 0.114 * imageData[i * 4 + 2]); + outArray[i] = Math.floor( + 0.299 * imageData[i * 4 + 0] + 0.587 * imageData[i * 4 + 1] + 0.114 * imageData[i * 4 + 2]); } } }; CVUtils.loadImageArray = function(src, callback, canvas) { - if (!canvas) + if (!canvas) { canvas = document.createElement('canvas'); + } var img = new Image(); img.callback = callback; img.onload = function() { @@ -503,8 +540,8 @@ CVUtils.loadImageArray = function(src, callback, canvas) { var data = ctx.getImageData(0, 0, this.width, this.height).data; CVUtils.computeGray(data, array); this.callback(array, { - x : this.width, - y : this.height + x: this.width, + y: this.height }, this); }; img.src = src; @@ -525,7 +562,8 @@ CVUtils.halfSample = function(inImgWrapper, outImgWrapper) { var outImgIdx = 0; while (bottomRowIdx < endIdx) { for (var i = 0; i < outWidth; i++) { - outImg[outImgIdx] = Math.floor((inImg[topRowIdx] + inImg[topRowIdx + 1] + inImg[bottomRowIdx] + inImg[bottomRowIdx + 1]) / 4); + outImg[outImgIdx] = Math.floor( + (inImg[topRowIdx] + inImg[topRowIdx + 1] + inImg[bottomRowIdx] + inImg[bottomRowIdx + 1]) / 4); outImgIdx++; topRowIdx = topRowIdx + 2; bottomRowIdx = bottomRowIdx + 2; @@ -536,7 +574,16 @@ CVUtils.halfSample = function(inImgWrapper, outImgWrapper) { }; CVUtils.hsv2rgb = function(hsv, rgb) { - var h = hsv[0], s = hsv[1], v = hsv[2], c = v * s, x = c * (1 - Math.abs((h / 60) % 2 - 1)), m = v - c, r = 0, g = 0, b = 0; + var h = hsv[0], + s = hsv[1], + v = hsv[2], + c = v * s, + x = c * (1 - Math.abs((h / 60) % 2 - 1)), + m = v - c, + r = 0, + g = 0, + b = 0; + rgb = rgb || [0, 0, 0]; if (h < 60) { @@ -572,8 +619,8 @@ CVUtils._computeDivisors = function(n) { for (i = 1; i < Math.sqrt(n) + 1; i++) { if (n % i === 0) { divisors.push(i); - if (i !== n/i) { - largeDivisors.unshift(Math.floor(n/i)); + if (i !== n / i) { + largeDivisors.unshift(Math.floor(n / i)); } } } @@ -614,25 +661,25 @@ CVUtils.calculatePatchSize = function(patchSize, imgSize) { }, nrOfPatchesIdx = nrOfPatchesMap[patchSize] || nrOfPatchesMap.medium, nrOfPatches = nrOfPatchesList[nrOfPatchesIdx], - desiredPatchSize = Math.floor(wideSide/nrOfPatches), + desiredPatchSize = Math.floor(wideSide / nrOfPatches), optimalPatchSize; function findPatchSizeForDivisors(divisors) { var i = 0, - found = divisors[Math.floor(divisors.length/2)]; + found = divisors[Math.floor(divisors.length / 2)]; - while(i < (divisors.length - 1) && divisors[i] < desiredPatchSize) { + while (i < (divisors.length - 1) && divisors[i] < desiredPatchSize) { i++; } if (i > 0) { - if (Math.abs(divisors[i] - desiredPatchSize) > Math.abs(divisors[i-1] - desiredPatchSize)) { - found = divisors[i-1]; + if (Math.abs(divisors[i] - desiredPatchSize) > Math.abs(divisors[i - 1] - desiredPatchSize)) { + found = divisors[i - 1]; } else { found = divisors[i]; } } - if (desiredPatchSize / found < nrOfPatchesList[nrOfPatchesIdx+1] / nrOfPatchesList[nrOfPatchesIdx] && - desiredPatchSize / found > nrOfPatchesList[nrOfPatchesIdx-1]/nrOfPatchesList[nrOfPatchesIdx] ) { + if (desiredPatchSize / found < nrOfPatchesList[nrOfPatchesIdx + 1] / nrOfPatchesList[nrOfPatchesIdx] && + desiredPatchSize / found > nrOfPatchesList[nrOfPatchesIdx - 1] / nrOfPatchesList[nrOfPatchesIdx] ) { return {x: found, y: found}; } return null; @@ -650,9 +697,9 @@ CVUtils.calculatePatchSize = function(patchSize, imgSize) { CVUtils._parseCSSDimensionValues = function(value) { var dimension = { - value: parseFloat(value), - unit: value.indexOf("%") === value.length-1 ? "%" : "%" - }; + value: parseFloat(value), + unit: value.indexOf("%") === value.length - 1 ? "%" : "%" + }; return dimension; }; diff --git a/src/ean_reader.js b/src/ean_reader.js index 51723865..bb7e68ca 100644 --- a/src/ean_reader.js +++ b/src/ean_reader.js @@ -5,13 +5,13 @@ function EANReader(opts) { } var properties = { - CODE_L_START : {value: 0}, - MODULO : {value: 7}, - CODE_G_START : {value: 10}, - START_PATTERN : {value: [1 / 3 * 7, 1 / 3 * 7, 1 / 3 * 7]}, - STOP_PATTERN : {value: [1 / 3 * 7, 1 / 3 * 7, 1 / 3 * 7]}, - MIDDLE_PATTERN : {value: [1 / 5 * 7, 1 / 5 * 7, 1 / 5 * 7, 1 / 5 * 7, 1 / 5 * 7]}, - CODE_PATTERN : {value: [ + CODE_L_START: {value: 0}, + MODULO: {value: 7}, + CODE_G_START: {value: 10}, + START_PATTERN: {value: [1 / 3 * 7, 1 / 3 * 7, 1 / 3 * 7]}, + STOP_PATTERN: {value: [1 / 3 * 7, 1 / 3 * 7, 1 / 3 * 7]}, + MIDDLE_PATTERN: {value: [1 / 5 * 7, 1 / 5 * 7, 1 / 5 * 7, 1 / 5 * 7, 1 / 5 * 7]}, + CODE_PATTERN: {value: [ [3, 2, 1, 1], [2, 2, 2, 1], [2, 1, 2, 2], @@ -33,7 +33,7 @@ var properties = { [3, 1, 2, 1], [2, 1, 1, 3] ]}, - CODE_FREQUENCY : {value: [0, 11, 13, 14, 19, 25, 28, 21, 22, 26]}, + CODE_FREQUENCY: {value: [0, 11, 13, 14, 19, 25, 28, 21, 22, 26]}, SINGLE_CODE_ERROR: {value: 0.67}, AVG_CODE_ERROR: {value: 0.27}, FORMAT: {value: "ean_13", writeable: false} @@ -50,10 +50,10 @@ EANReader.prototype._decodeCode = function(start, coderange) { isWhite = !self._row[offset], counterPos = 0, bestMatch = { - error : Number.MAX_VALUE, - code : -1, - start : start, - end : start + error: Number.MAX_VALUE, + code: -1, + start: start, + end: start }, code, error, @@ -99,10 +99,10 @@ EANReader.prototype._findPattern = function(pattern, offset, isWhite, tryHarder, i, counterPos = 0, bestMatch = { - error : Number.MAX_VALUE, - code : -1, - start : 0, - end : 0 + error: Number.MAX_VALUE, + code: -1, + start: 0, + end: 0 }, error, j, @@ -175,7 +175,7 @@ EANReader.prototype._findStart = function() { offset = self._nextSet(self._row), startInfo; - while(!startInfo) { + while (!startInfo) { startInfo = self._findPattern(self.START_PATTERN, offset); if (!startInfo) { return null; @@ -280,9 +280,9 @@ EANReader.prototype._decode = function() { return null; } code = { - code : startInfo.code, - start : startInfo.start, - end : startInfo.end + code: startInfo.code, + start: startInfo.start, + end: startInfo.end }; decodedCodes.push(code); code = self._decodePayload(code, result, decodedCodes); @@ -302,12 +302,12 @@ EANReader.prototype._decode = function() { } return { - code : result.join(""), - start : startInfo.start, - end : code.end, - codeset : "", - startInfo : startInfo, - decodedCodes : decodedCodes + code: result.join(""), + start: startInfo.start, + end: code.end, + codeset: "", + startInfo: startInfo, + decodedCodes: decodedCodes }; }; diff --git a/src/events.js b/src/events.js index 5769bb23..cc565892 100644 --- a/src/events.js +++ b/src/events.js @@ -1,10 +1,10 @@ -export default function() { +export default (function() { var events = {}; function getEvent(eventName) { if (!events[eventName]) { events[eventName] = { - subscribers : [] + subscribers: [] }; } return events[eventName]; @@ -29,8 +29,8 @@ export default function() { if ( typeof callback === "function") { subscription = { - callback : callback, - async : async + callback: callback, + async: async }; } else { subscription = callback; @@ -43,10 +43,10 @@ export default function() { } return { - subscribe : function(event, callback, async) { + subscribe: function(event, callback, async) { return subscribe(event, callback, async); }, - publish : function(eventName, data) { + publish: function(eventName, data) { var event = getEvent(eventName), subscribers = event.subscribers; @@ -79,4 +79,4 @@ export default function() { } } }; -}(); +})(); diff --git a/src/frame_grabber.js b/src/frame_grabber.js index a739b49b..6cc64fa9 100644 --- a/src/frame_grabber.js +++ b/src/frame_grabber.js @@ -52,7 +52,7 @@ FrameGrabber.create = function(inputStream, canvas) { if (frame) { _ctx.drawImage(frame, 0, 0, _canvasSize.x, _canvasSize.y); ctxData = _ctx.getImageData(_sx, _sy, _size.x, _size.y).data; - if(doHalfSample){ + if (doHalfSample){ CVUtils.grayAndHalfSampleFromCanvasData(ctxData, _size, _data); } else { CVUtils.computeGray(ctxData, _data, _streamConfig); diff --git a/src/i2of5_reader.js b/src/i2of5_reader.js index e6e06f15..f2a2f90c 100644 --- a/src/i2of5_reader.js +++ b/src/i2of5_reader.js @@ -15,7 +15,7 @@ function getDefaulConfig() { var config = {}; Object.keys(I2of5Reader.CONFIG_KEYS).forEach(function(key) { - config[key] = I2of5Reader.CONFIG_KEYS[key]['default']; + config[key] = I2of5Reader.CONFIG_KEYS[key].default; }); return config; } @@ -23,26 +23,26 @@ function getDefaulConfig() { var N = 1, W = 3, properties = { - MODULO : {value: 10}, - START_PATTERN : {value: [N*2.5, N*2.5, N*2.5, N*2.5]}, - STOP_PATTERN : {value: [N*2, N*2, W*2]}, - CODE_PATTERN : {value: [ - [N, N, W, W, N], - [W, N, N, N, W], - [N, W, N, N, W], - [W, W, N, N, N], - [N, N, W, N, W], - [W, N, W, N, N], - [N, W, W, N, N], - [N, N, N, W, W], - [W, N, N, W, N], - [N, W, N, W, N] - ]}, - SINGLE_CODE_ERROR: {value: 0.78, writable: true}, - AVG_CODE_ERROR: {value: 0.38, writable: true}, - MAX_CORRECTION_FACTOR: {value: 5}, - FORMAT: {value: "i2of5"} -}; + MODULO: {value: 10}, + START_PATTERN: {value: [N * 2.5, N * 2.5, N * 2.5, N * 2.5]}, + STOP_PATTERN: {value: [N * 2, N * 2, W * 2]}, + CODE_PATTERN: {value: [ + [N, N, W, W, N], + [W, N, N, N, W], + [N, W, N, N, W], + [W, W, N, N, N], + [N, N, W, N, W], + [W, N, W, N, N], + [N, W, W, N, N], + [N, N, N, W, W], + [W, N, N, W, N], + [N, W, N, W, N] + ]}, + SINGLE_CODE_ERROR: {value: 0.78, writable: true}, + AVG_CODE_ERROR: {value: 0.38, writable: true}, + MAX_CORRECTION_FACTOR: {value: 5}, + FORMAT: {value: "i2of5"} + }; I2of5Reader.prototype = Object.create(BarcodeReader.prototype, properties); I2of5Reader.prototype.constructor = I2of5Reader; @@ -79,10 +79,10 @@ I2of5Reader.prototype._findPattern = function(pattern, offset, isWhite, tryHarde i, counterPos = 0, bestMatch = { - error : Number.MAX_VALUE, - code : -1, - start : 0, - end : 0 + error: Number.MAX_VALUE, + code: -1, + start: 0, + end: 0 }, error, j, @@ -148,13 +148,13 @@ I2of5Reader.prototype._findStart = function() { startInfo, narrowBarWidth = 1; - while(!startInfo) { + while (!startInfo) { startInfo = self._findPattern(self.START_PATTERN, offset, false, true); if (!startInfo) { return null; } narrowBarWidth = Math.floor((startInfo.end - startInfo.start) / 4); - leadingWhitespaceStart = startInfo.start - narrowBarWidth*10; + leadingWhitespaceStart = startInfo.start - narrowBarWidth * 10; if (leadingWhitespaceStart >= 0) { if (self._matchRange(leadingWhitespaceStart, startInfo.start, 0)) { return startInfo; @@ -224,10 +224,10 @@ I2of5Reader.prototype._decodeCode = function(counter) { epsilon = self.AVG_CODE_ERROR, code, bestMatch = { - error : Number.MAX_VALUE, - code : -1, - start : 0, - end : 0 + error: Number.MAX_VALUE, + code: -1, + start: 0, + end: 0 }; for ( j = 0; j < counter.length; j++) { @@ -259,8 +259,8 @@ I2of5Reader.prototype._decodePayload = function(counters, result, decodedCodes) while (pos < counterLength) { for (i = 0; i < 5; i++) { - counterPair[0][i] = counters[pos]*this.barSpaceRatio[0]; - counterPair[1][i] = counters[pos + 1]*this.barSpaceRatio[1]; + counterPair[0][i] = counters[pos] * this.barSpaceRatio[0]; + counterPair[1][i] = counters[pos + 1] * this.barSpaceRatio[1]; pos += 2; } codes = self._decodePair(counterPair); @@ -314,11 +314,11 @@ I2of5Reader.prototype._decode = function() { decodedCodes.push(endInfo); return { - code : result.join(""), - start : startInfo.start, - end : endInfo.end, - startInfo : startInfo, - decodedCodes : decodedCodes + code: result.join(""), + start: startInfo.start, + end: endInfo.end, + startInfo: startInfo, + decodedCodes: decodedCodes }; }; diff --git a/src/image_debug.js b/src/image_debug.js index 40a82975..77f08a62 100644 --- a/src/image_debug.js +++ b/src/image_debug.js @@ -25,10 +25,10 @@ export default { canvasDataPos = data.length, value; - if (canvasDataPos/imageDataPos !== 4) { + if (canvasDataPos / imageDataPos !== 4) { return false; } - while(imageDataPos--){ + while (imageDataPos--){ value = imageData[imageDataPos]; data[--canvasDataPos] = 255; data[--canvasDataPos] = value; diff --git a/src/image_loader.js b/src/image_loader.js index 685163c2..83dc9801 100644 --- a/src/image_loader.js +++ b/src/image_loader.js @@ -15,17 +15,17 @@ ImageLoader.load = function(directory, callback, offset, size, sequence) { } } htmlImagesArray.notLoaded = []; - htmlImagesArray.addImage = function(img) { - htmlImagesArray.notLoaded.push(img); + htmlImagesArray.addImage = function(image) { + htmlImagesArray.notLoaded.push(image); }; htmlImagesArray.loaded = function(loadedImg) { var notloadedImgs = htmlImagesArray.notLoaded; for (var x = 0; x < notloadedImgs.length; x++) { - if (notloadedImgs[x] == loadedImg) { + if (notloadedImgs[x] === loadedImg) { notloadedImgs.splice(x, 1); for (var y = 0; y < htmlImagesSrcArray.length; y++) { var imgName = htmlImagesSrcArray[y].substr(htmlImagesSrcArray[y].lastIndexOf("/")); - if (loadedImg.src.lastIndexOf(imgName) != -1) { + if (loadedImg.src.lastIndexOf(imgName) !== -1) { htmlImagesArray[y] = loadedImg; break; } diff --git a/src/image_wrapper.js b/src/image_wrapper.js index 454d63f0..673dc068 100644 --- a/src/image_wrapper.js +++ b/src/image_wrapper.js @@ -1,7 +1,7 @@ import SubImage from './subImage'; import CVUtils from './cv_utils'; import ArrayHelper from './array_helper'; -import {vec2, mat2} from 'gl-matrix'; +import {vec2} from 'gl-matrix'; /** * Represents a basic image combining the data and size. @@ -25,7 +25,6 @@ function ImageWrapper(size, data, ArrayType, initialize) { ArrayHelper.init(this.data, 0); } } - } else { this.data = data; } @@ -40,77 +39,10 @@ function ImageWrapper(size, data, ArrayType, initialize) { * @see cvd/image.h */ ImageWrapper.prototype.inImageWithBorder = function(imgRef, border) { - return (imgRef.x >= border) && (imgRef.y >= border) && (imgRef.x < (this.size.x - border)) && (imgRef.y < (this.size.y - border)); -}; - -/** - * Transforms an image according to the given affine-transformation matrix. - * @param inImg ImageWrapper a image containing the information to be extracted. - * @param outImg ImageWrapper the image to be filled. The whole image out image is filled by the in image. - * @param M mat2 the matrix used to map point in the out matrix to those in the in matrix - * @param inOrig vec2 origin in the in image - * @param outOrig vec2 origin in the out image - * @returns Number the number of pixels not in the in image - * @see cvd/vision.h - */ -ImageWrapper.transform = function(inImg, outImg, M, inOrig, outOrig) { - var w = outImg.size.x, h = outImg.size.y, iw = inImg.size.x, ih = inImg.size.y; - var across = vec2.clone([M[0], M[2]]); - var down = vec2.clone([M[1], M[3]]); - var defaultValue = 0; - - var p0 = vec2.subtract(inOrig, mat2.xVec2(M, outOrig, vec2.clone()), vec2.clone()); - - var min_x = p0[0], min_y = p0[1]; - var max_x = min_x, max_y = min_y; - var p, i, j; - - var sampleFunc = ImageWrapper.sample; - - if (across[0] < 0) - min_x += w * across[0]; - else - max_x += w * across[0]; - - if (down[0] < 0) - min_x += h * down[0]; - else - max_x += h * down[0]; - - if (across[1] < 0) - min_y += w * across[1]; - else - max_y += w * across[1]; - - if (down[1] < 0) - min_y += h * down[1]; - else - max_y += h * down[1]; - - var carrigeReturn = vec2.subtract(down, vec2.scale(across, w, vec2.clone()), vec2.clone()); - - if (min_x >= 0 && min_y >= 0 && max_x < iw - 1 && max_y < ih - 1) { - p = p0; - for ( i = 0; i < h; ++i, vec2.add(p, carrigeReturn)) - for ( j = 0; j < w; ++j, vec2.add(p, across)) - outImg.set(j, i, sampleFunc(inImg, p[0], p[1])); - return 0; - } else { - var x_bound = iw - 1; - var y_bound = ih - 1; - var count = 0; - p = p0; - for ( i = 0; i < h; ++i, vec2.add(p, carrigeReturn)) { - for ( j = 0; j < w; ++j, vec2.add(p, across)) { - if (0 <= p[0] && 0 <= p[1] && p[0] < x_bound && p[1] < y_bound) { - outImg.set(j, i, sampleFunc(inImg, p[0], p[1])); - } else { - outImg.set(j, i, defaultValue); ++count; - } - } - } - return count; - } + return (imgRef.x >= border) + && (imgRef.y >= border) + && (imgRef.x < (this.size.x - border)) + && (imgRef.y < (this.size.y - border)); }; /** @@ -203,8 +135,8 @@ ImageWrapper.prototype.getSafe = function(x, y) { if (!this.indexMapping) { this.indexMapping = { - x : [], - y : [] + x: [], + y: [] }; for (i = 0; i < this.size.x; i++) { this.indexMapping.x[i] = i; @@ -252,7 +184,6 @@ ImageWrapper.prototype.invert = function() { while (length--) { data[length] = data[length] ? 0 : 1; } - }; ImageWrapper.prototype.convolve = function(kernel) { @@ -262,7 +193,7 @@ ImageWrapper.prototype.convolve = function(kernel) { accu = 0; for ( ky = -kSize; ky <= kSize; ky++) { for ( kx = -kSize; kx <= kSize; kx++) { - accu += kernel[ky+kSize][kx + kSize] * this.getSafe(x + kx, y + ky); + accu += kernel[ky + kSize][kx + kSize] * this.getSafe(x + kx, y + ky); } } this.data[y * this.size.x + x] = accu; @@ -297,14 +228,14 @@ ImageWrapper.prototype.moments = function(labelcount) { for ( i = 0; i < labelcount; i++) { labelsum[i] = { - m00 : 0, - m01 : 0, - m10 : 0, - m11 : 0, - m02 : 0, - m20 : 0, - theta : 0, - rad : 0 + m00: 0, + m01: 0, + m10: 0, + m11: 0, + m02: 0, + m20: 0, + theta: 0, + rad: 0 }; } diff --git a/src/input_stream.js b/src/input_stream.js index 33a5629d..c8cccc9b 100644 --- a/src/input_stream.js +++ b/src/input_stream.js @@ -15,8 +15,10 @@ InputStream.createVideoStream = function(video) { var width = video.videoWidth, height = video.videoHeight; - _calculatedWidth = _config.size ? width/height > 1 ? _config.size : Math.floor((width/height) * _config.size) : width; - _calculatedHeight = _config.size ? width/height > 1 ? Math.floor((height/width) * _config.size) : _config.size : height; + _calculatedWidth = + _config.size ? width / height > 1 ? _config.size : Math.floor((width / height) * _config.size) : width; + _calculatedHeight = + _config.size ? width / height > 1 ? Math.floor((height / width) * _config.size) : _config.size : height; _canvasSize.x = _calculatedWidth; _canvasSize.y = _calculatedHeight; @@ -72,8 +74,9 @@ InputStream.createVideoStream = function(video) { }; that.setCurrentTime = function(time) { - if (_config.type !== "LiveStream") + if (_config.type !== "LiveStream") { video.currentTime = time; + } }; that.addEventListener = function(event, f, bool) { @@ -175,8 +178,10 @@ InputStream.createImageStream = function() { imgArray = imgs; width = imgs[0].width; height = imgs[0].height; - calculatedWidth = _config.size ? width/height > 1 ? _config.size : Math.floor((width/height) * _config.size) : width; - calculatedHeight = _config.size ? width/height > 1 ? Math.floor((height/width) * _config.size) : _config.size : height; + calculatedWidth = + _config.size ? width / height > 1 ? _config.size : Math.floor((width / height) * _config.size) : width; + calculatedHeight = + _config.size ? width / height > 1 ? Math.floor((height / width) * _config.size) : _config.size : height; _canvasSize.x = calculatedWidth; _canvasSize.y = calculatedHeight; loaded = true; @@ -209,12 +214,12 @@ InputStream.createImageStream = function() { return calculatedHeight; }; - that.setWidth = function(width) { - calculatedWidth = width; + that.setWidth = function(newWidth) { + calculatedWidth = newWidth; }; - that.setHeight = function(height) { - calculatedHeight = height; + that.setHeight = function(newHeight) { + calculatedHeight = newHeight; }; that.getRealWidth = function() { @@ -277,9 +282,9 @@ InputStream.createImageStream = function() { return _topRight; }; - that.setCanvasSize = function(size) { - _canvasSize.x = size.x; - _canvasSize.y = size.y; + that.setCanvasSize = function(canvasSize) { + _canvasSize.x = canvasSize.x; + _canvasSize.y = canvasSize.y; }; that.getCanvasSize = function() { diff --git a/src/quagga.js b/src/quagga.js index bbf2c5f1..6a253316 100644 --- a/src/quagga.js +++ b/src/quagga.js @@ -1,15 +1,15 @@ -import TypeDefs from './typedefs'; +import TypeDefs from './typedefs'; // eslint-disable-line no-unused-vars import InputStream from './input_stream'; -import ImageWrapper from './image_wrapper'; -import BarcodeLocator from './barcode_locator'; -import BarcodeDecoder from './barcode_decoder'; -import FrameGrabber from './frame_grabber'; -import Config from './config'; -import Events from './events'; -import CameraAccess from './camera_access'; -import ImageDebug from './image_debug'; -import {vec2} from 'gl-matrix'; -import ResultCollector from './result_collector'; +import ImageWrapper from './image_wrapper'; +import BarcodeLocator from './barcode_locator'; +import BarcodeDecoder from './barcode_decoder'; +import FrameGrabber from './frame_grabber'; +import Config from './config'; +import Events from './events'; +import CameraAccess from './camera_access'; +import ImageDebug from './image_debug'; +import {vec2} from 'gl-matrix'; +import ResultCollector from './result_collector'; const merge = require('lodash/object/merge'); @@ -17,13 +17,13 @@ var _inputStream, _framegrabber, _stopped, _canvasContainer = { - ctx : { - image : null, - overlay : null + ctx: { + image: null, + overlay: null }, - dom : { - image : null, - overlay : null + dom: { + image: null, + overlay: null } }, _inputImageWrapper, @@ -63,12 +63,12 @@ function initConfig() { function initInputStream(cb) { var video; - if (_config.inputStream.type == "VideoStream") { + if (_config.inputStream.type === "VideoStream") { video = document.createElement("video"); _inputStream = InputStream.createVideoStream(video); - } else if (_config.inputStream.type == "ImageStream") { + } else if (_config.inputStream.type === "ImageStream") { _inputStream = InputStream.createImageStream(); - } else if (_config.inputStream.type == "LiveStream") { + } else if (_config.inputStream.type === "LiveStream") { var $viewport = document.querySelector("#interactive.viewport"); if ($viewport) { video = $viewport.querySelector("video"); @@ -122,7 +122,7 @@ function initCanvas() { if (!_canvasContainer.dom.image) { _canvasContainer.dom.image = document.createElement("canvas"); _canvasContainer.dom.image.className = "imgBuffer"; - if ($viewport && _config.inputStream.type == "ImageStream") { + if ($viewport && _config.inputStream.type === "ImageStream") { $viewport.appendChild(_canvasContainer.dom.image); } } @@ -154,18 +154,18 @@ function initBuffers(imageWrapper) { _inputImageWrapper = imageWrapper; } else { _inputImageWrapper = new ImageWrapper({ - x : _inputStream.getWidth(), - y : _inputStream.getHeight() + x: _inputStream.getWidth(), + y: _inputStream.getHeight() }); } console.log(_inputImageWrapper.size); _boxSize = [ - vec2.clone([0, 0]), - vec2.clone([0, _inputImageWrapper.size.y]), - vec2.clone([_inputImageWrapper.size.x, _inputImageWrapper.size.y]), - vec2.clone([_inputImageWrapper.size.x, 0]) - ]; + vec2.clone([0, 0]), + vec2.clone([0, _inputImageWrapper.size.y]), + vec2.clone([_inputImageWrapper.size.x, _inputImageWrapper.size.y]), + vec2.clone([_inputImageWrapper.size.x, 0]) + ]; BarcodeLocator.init(_inputImageWrapper, _config.locator); } @@ -204,7 +204,7 @@ function transformResult(result) { function moveBox(box) { var corner = box.length; - while(corner--) { + while (corner--) { box[corner][0] += xOffset; box[corner][1] += yOffset; } @@ -286,7 +286,7 @@ function start() { ( function frame() { if (!_stopped) { update(); - if (_onUIThread && _config.inputStream.type == "LiveStream") { + if (_onUIThread && _config.inputStream.type === "LiveStream") { window.requestAnimFrame(frame); } } @@ -346,17 +346,15 @@ function initWorker(cb) { function workerInterface(factory) { + /* eslint-disable no-undef*/ window = self; if (factory) { - /* jshint ignore:start */ var Quagga = factory(); if (!Quagga) { self.postMessage({'event': 'error', message: 'Quagga could not be created'}); return; } - /* jshint ignore:end */ } - /* jshint ignore:start */ var imageWrapper; self.onmessage = function(e) { @@ -364,8 +362,8 @@ function workerInterface(factory) { var config = e.data.config; config.numOfWorkers = 0; imageWrapper = new Quagga.ImageWrapper({ - x : e.data.size.x, - y : e.data.size.y + x: e.data.size.x, + y: e.data.size.y }, new Uint8Array(e.data.imageData)); Quagga.init(config, ready, imageWrapper); Quagga.onProcessed(onProcessed); @@ -378,13 +376,18 @@ function workerInterface(factory) { }; function onProcessed(result) { - self.postMessage({'event': 'processed', imageData: imageWrapper.data, result: result}, [imageWrapper.data.buffer]); + self.postMessage({ + 'event': 'processed', + imageData: imageWrapper.data, + result: result + }, [imageWrapper.data.buffer]); } - function ready() { + function ready() { // eslint-disable-line self.postMessage({'event': 'initialized', imageData: imageWrapper.data}, [imageWrapper.data.buffer]); } - /* jshint ignore:end */ + + /* eslint-enable */ } function generateWorkerBlob() { @@ -393,12 +396,12 @@ function generateWorkerBlob() { /* jshint ignore:start */ if (typeof __factorySource__ !== 'undefined') { - factorySource = __factorySource__; + factorySource = __factorySource__; // eslint-disable-line no-undef } /* jshint ignore:end */ blob = new Blob(['(' + workerInterface.toString() + ')(' + factorySource + ');'], - {type : 'text/javascript'}); + {type: 'text/javascript'}); return window.URL.createObjectURL(blob); } @@ -414,7 +417,7 @@ function setReaders(readers) { } export default { - init : function(config, cb, imageWrapper) { + init: function(config, cb, imageWrapper) { _config = merge({}, Config, config); if (imageWrapper) { _onUIThread = false; @@ -424,10 +427,10 @@ export default { initInputStream(cb); } }, - start : function() { + start: function() { start(); }, - stop : function() { + stop: function() { _stopped = true; _workerPool.forEach(function(workerThread) { workerThread.worker.terminate(); @@ -442,7 +445,7 @@ export default { pause: function() { _stopped = true; }, - onDetected : function(callback) { + onDetected: function(callback) { Events.subscribe("detected", callback); }, offDetected: function(callback) { @@ -462,12 +465,12 @@ export default { _resultCollector = resultCollector; } }, - canvas : _canvasContainer, - decodeSingle : function(config, resultCallback) { + canvas: _canvasContainer, + decodeSingle: function(config, resultCallback) { config = merge({ inputStream: { - type : "ImageStream", - sequence : false, + type: "ImageStream", + sequence: false, size: 800, src: config.src }, diff --git a/src/rasterizer.js b/src/rasterizer.js index 1a564b5a..0e62fbd6 100644 --- a/src/rasterizer.js +++ b/src/rasterizer.js @@ -4,26 +4,26 @@ import Tracer from './tracer'; * http://www.codeproject.com/Tips/407172/Connected-Component-Labeling-and-Vectorization */ var Rasterizer = { - createContour2D : function() { + createContour2D: function() { return { - dir : null, - index : null, - firstVertex : null, - insideContours : null, - nextpeer : null, - prevpeer : null + dir: null, + index: null, + firstVertex: null, + insideContours: null, + nextpeer: null, + prevpeer: null }; }, - CONTOUR_DIR : { - CW_DIR : 0, - CCW_DIR : 1, - UNKNOWN_DIR : 2 + CONTOUR_DIR: { + CW_DIR: 0, + CCW_DIR: 1, + UNKNOWN_DIR: 2 }, - DIR : { - OUTSIDE_EDGE : -32767, - INSIDE_EDGE : -32766 + DIR: { + OUTSIDE_EDGE: -32767, + INSIDE_EDGE: -32766 }, - create : function(imageWrapper, labelWrapper) { + create: function(imageWrapper, labelWrapper) { var imageData = imageWrapper.data, labelData = labelWrapper.data, width = imageWrapper.size.x, @@ -31,7 +31,7 @@ var Rasterizer = { tracer = Tracer.create(imageWrapper, labelWrapper); return { - rasterize : function(depthlabel) { + rasterize: function(depthlabel) { var color, bc, lc, @@ -81,7 +81,8 @@ var Rasterizer = { cc = p; } } else { - vertex = tracer.contourTracing(cy, cx, Rasterizer.DIR.INSIDE_EDGE, color, labelindex); + vertex = tracer + .contourTracing(cy, cx, Rasterizer.DIR.INSIDE_EDGE, color, labelindex); if (vertex !== null) { p = Rasterizer.createContour2D(); p.firstVertex = vertex; @@ -108,7 +109,8 @@ var Rasterizer = { } else { labelData[pos] = labelindex; } - } else if (labelData[pos] === Rasterizer.DIR.OUTSIDE_EDGE || labelData[pos] === Rasterizer.DIR.INSIDE_EDGE) { + } else if (labelData[pos] === Rasterizer.DIR.OUTSIDE_EDGE + || labelData[pos] === Rasterizer.DIR.INSIDE_EDGE) { labelindex = 0; if (labelData[pos] === Rasterizer.DIR.INSIDE_EDGE) { bc = imageData[pos]; @@ -127,12 +129,12 @@ var Rasterizer = { sc = sc.nextpeer; } return { - cc : cc, - count : connectedCount + cc: cc, + count: connectedCount }; }, debug: { - drawContour : function(canvas, firstContour) { + drawContour: function(canvas, firstContour) { var ctx = canvas.getContext("2d"), pq = firstContour, iq, @@ -163,7 +165,7 @@ var Rasterizer = { } } - switch(q.dir) { + switch (q.dir) { case Rasterizer.CONTOUR_DIR.CW_DIR: ctx.strokeStyle = "red"; break; @@ -181,7 +183,7 @@ var Rasterizer = { do { p = p.next; ctx.lineTo(p.x, p.y); - } while(p !== q.firstVertex); + } while (p !== q.firstVertex); ctx.stroke(); } } diff --git a/src/result_collector.js b/src/result_collector.js index 05f57002..987445bc 100644 --- a/src/result_collector.js +++ b/src/result_collector.js @@ -27,7 +27,10 @@ export default { capture = config.capture === true; function matchesConstraints(codeResult) { - return capacity && codeResult && !contains(codeResult, config.blacklist) && passesFilter(codeResult, config.filter); + return capacity + && codeResult + && !contains(codeResult, config.blacklist) + && passesFilter(codeResult, config.filter); } return { diff --git a/src/skeletonizer.js b/src/skeletonizer.js index fc7316f7..dd1a9ceb 100644 --- a/src/skeletonizer.js +++ b/src/skeletonizer.js @@ -26,8 +26,12 @@ function Skeletonizer(stdlib, foreign, buffer) { yStart2 = (offset + size) | 0; xStart1 = (u - 1) | 0; xStart2 = (u + 1) | 0; - sum = ((images[(inImagePtr + yStart1 + xStart1) | 0] | 0) + (images[(inImagePtr + yStart1 + xStart2) | 0] | 0) + (images[(inImagePtr + offset + u) | 0] | 0) + (images[(inImagePtr + yStart2 + xStart1) | 0] | 0) + (images[(inImagePtr + yStart2 + xStart2) | 0] | 0)) | 0; - if ((sum | 0) == (5 | 0)) { + sum = ((images[(inImagePtr + yStart1 + xStart1) | 0] | 0) + + (images[(inImagePtr + yStart1 + xStart2) | 0] | 0) + + (images[(inImagePtr + offset + u) | 0] | 0) + + (images[(inImagePtr + yStart2 + xStart1) | 0] | 0) + + (images[(inImagePtr + yStart2 + xStart2) | 0] | 0)) | 0; + if ((sum | 0) === (5 | 0)) { images[(outImagePtr + offset + u) | 0] = 1; } else { images[(outImagePtr + offset + u) | 0] = 0; @@ -48,7 +52,8 @@ function Skeletonizer(stdlib, foreign, buffer) { while ((length | 0) > 0) { length = (length - 1) | 0; - images[(outImagePtr + length) | 0] = ((images[(aImagePtr + length) | 0] | 0) - (images[(bImagePtr + length) | 0] | 0)) | 0; + images[(outImagePtr + length) | 0] = + ((images[(aImagePtr + length) | 0] | 0) - (images[(bImagePtr + length) | 0] | 0)) | 0; } } @@ -63,7 +68,8 @@ function Skeletonizer(stdlib, foreign, buffer) { while ((length | 0) > 0) { length = (length - 1) | 0; - images[(outImagePtr + length) | 0] = ((images[(aImagePtr + length) | 0] | 0) | (images[(bImagePtr + length) | 0] | 0)) | 0; + images[(outImagePtr + length) | 0] = + ((images[(aImagePtr + length) | 0] | 0) | (images[(bImagePtr + length) | 0] | 0)) | 0; } } @@ -117,7 +123,11 @@ function Skeletonizer(stdlib, foreign, buffer) { yStart2 = (offset + size) | 0; xStart1 = (u - 1) | 0; xStart2 = (u + 1) | 0; - sum = ((images[(inImagePtr + yStart1 + xStart1) | 0] | 0) + (images[(inImagePtr + yStart1 + xStart2) | 0] | 0) + (images[(inImagePtr + offset + u) | 0] | 0) + (images[(inImagePtr + yStart2 + xStart1) | 0] | 0) + (images[(inImagePtr + yStart2 + xStart2) | 0] | 0)) | 0; + sum = ((images[(inImagePtr + yStart1 + xStart1) | 0] | 0) + + (images[(inImagePtr + yStart1 + xStart2) | 0] | 0) + + (images[(inImagePtr + offset + u) | 0] | 0) + + (images[(inImagePtr + yStart2 + xStart1) | 0] | 0) + + (images[(inImagePtr + yStart2 + xStart2) | 0] | 0)) | 0; if ((sum | 0) > (0 | 0)) { images[(outImagePtr + offset + u) | 0] = 1; } else { @@ -184,12 +194,12 @@ function Skeletonizer(stdlib, foreign, buffer) { bitwiseOr(skelImagePtr, tempImagePtr, skelImagePtr); memcpy(erodedImagePtr, subImagePtr); sum = countNonZero(subImagePtr) | 0; - done = ((sum | 0) == 0 | 0); - } while(!done); + done = ((sum | 0) === 0 | 0); + } while (!done); } return { - skeletonize : skeletonize + skeletonize: skeletonize }; } /* @preserve ASM END */ diff --git a/src/subImage.js b/src/subImage.js index a8809186..84922bba 100644 --- a/src/subImage.js +++ b/src/subImage.js @@ -9,8 +9,8 @@ function SubImage(from, size, I) { if (!I) { I = { - data : null, - size : size + data: null, + size: size }; } this.data = I.data; diff --git a/src/tracer.js b/src/tracer.js index 5f59ed0c..6a39afe3 100644 --- a/src/tracer.js +++ b/src/tracer.js @@ -2,8 +2,8 @@ * http://www.codeproject.com/Tips/407172/Connected-Component-Labeling-and-Vectorization */ var Tracer = { - searchDirections : [[0, 1], [1, 1], [1, 0], [1, -1], [0, -1], [-1, -1], [-1, 0], [-1, 1]], - create : function(imageWrapper, labelWrapper) { + searchDirections: [[0, 1], [1, 1], [1, 0], [1, -1], [0, -1], [-1, -1], [-1, 0], [-1, 1]], + create: function(imageWrapper, labelWrapper) { var imageData = imageWrapper.data, labelData = labelWrapper.data, searchDirections = this.searchDirections, @@ -36,11 +36,11 @@ var Tracer = { function vertex2D(x, y, dir) { return { - dir : dir, - x : x, - y : y, - next : null, - prev : null + dir: dir, + x: x, + y: y, + next: null, + prev: null }; } @@ -50,9 +50,9 @@ var Tracer = { P, ldir, current = { - cx : sx, - cy : sy, - dir : 0 + cx: sx, + cy: sy, + dir: 0 }; if (trace(current, color, label, edgelabel)) { @@ -67,7 +67,7 @@ var Tracer = { do { current.dir = (current.dir + 6) % 8; trace(current, color, label, edgelabel); - if (ldir != current.dir) { + if (ldir !== current.dir) { Cv.dir = current.dir; P = vertex2D(current.cx, current.cy, 0); P.prev = Cv; @@ -80,7 +80,7 @@ var Tracer = { Cv.y = current.cy; } ldir = current.dir; - } while(current.cx != sx || current.cy != sy); + } while (current.cx !== sx || current.cy !== sy); Fv.prev = Cv.prev; Cv.prev.next = Fv; } @@ -88,10 +88,10 @@ var Tracer = { } return { - trace : function(current, color, label, edgelabel) { + trace: function(current, color, label, edgelabel) { return trace(current, color, label, edgelabel); }, - contourTracing : function(sy, sx, label, color, edgelabel) { + contourTracing: function(sy, sx, label, color, edgelabel) { return contourTracing(sy, sx, label, color, edgelabel); } }; diff --git a/src/upc_e_reader.js b/src/upc_e_reader.js index a72f71fd..a60fd374 100644 --- a/src/upc_e_reader.js +++ b/src/upc_e_reader.js @@ -5,7 +5,7 @@ function UPCEReader() { } var properties = { - CODE_FREQUENCY : {value: [ + CODE_FREQUENCY: {value: [ [ 56, 52, 50, 49, 44, 38, 35, 42, 41, 37 ], [7, 11, 13, 14, 19, 25, 28, 21, 22, 26]]}, STOP_PATTERN: { value: [1 / 6 * 7, 1 / 6 * 7, 1 / 6 * 7, 1 / 6 * 7, 1 / 6 * 7, 1 / 6 * 7]}, @@ -40,13 +40,12 @@ UPCEReader.prototype._decodePayload = function(code, result, decodedCodes) { }; UPCEReader.prototype._determineParity = function(codeFrequency, result) { - var self =this, - i, + var i, nrSystem; - for (nrSystem = 0; nrSystem < self.CODE_FREQUENCY.length; nrSystem++){ - for ( i = 0; i < self.CODE_FREQUENCY[nrSystem].length; i++) { - if (codeFrequency === self.CODE_FREQUENCY[nrSystem][i]) { + for (nrSystem = 0; nrSystem < this.CODE_FREQUENCY.length; nrSystem++){ + for ( i = 0; i < this.CODE_FREQUENCY[nrSystem].length; i++) { + if (codeFrequency === this.CODE_FREQUENCY[nrSystem][i]) { result.unshift(nrSystem); result.push(i); return true; @@ -66,8 +65,8 @@ UPCEReader.prototype._convertToUPCA = function(result) { .concat(result.slice(3, 6)); } else if (lastDigit === 3) { upca = upca.concat(result.slice(1, 4)) - .concat([0 ,0, 0, 0, 0]) - .concat(result.slice(4,6)); + .concat([0, 0, 0, 0, 0]) + .concat(result.slice(4, 6)); } else if (lastDigit === 4) { upca = upca.concat(result.slice(1, 5)) .concat([0, 0, 0, 0, 0, result[5]]); @@ -93,7 +92,7 @@ UPCEReader.prototype._verifyTrailingWhitespace = function(endInfo) { var self = this, trailingWhitespaceEnd; - trailingWhitespaceEnd = endInfo.end + ((endInfo.end - endInfo.start)/2); + trailingWhitespaceEnd = endInfo.end + ((endInfo.end - endInfo.start) / 2); if (trailingWhitespaceEnd < self._row.length) { if (self._matchRange(endInfo.end, trailingWhitespaceEnd, 0)) { return endInfo; diff --git a/src/upc_reader.js b/src/upc_reader.js index fdf3cd01..a9cc0529 100644 --- a/src/upc_reader.js +++ b/src/upc_reader.js @@ -14,7 +14,6 @@ UPCReader.prototype.constructor = UPCReader; UPCReader.prototype._decode = function() { var result = EANReader.prototype._decode.call(this); - console.log("result", result); if (result && result.code && result.code.length === 13 && result.code.charAt(0) === "0") { result.code = result.code.substring(1); return result; From 9295e416554f9f3ebf843624f369036e94859fc1 Mon Sep 17 00:00:00 2001 From: Christoph Oberhofer Date: Wed, 7 Oct 2015 00:19:37 +0200 Subject: [PATCH 4/7] Fixed minified code --- dist/quagga.js | 209 ++++++++++++++--------------------------- dist/quagga.map | 1 - dist/quagga.min.js | 10 +- package.json | 3 +- src/barcode_locator.js | 5 +- src/quagga.js | 1 - src/skeletonizer.js | 8 +- tasks/uglyasm.js | 41 ++++---- 8 files changed, 110 insertions(+), 168 deletions(-) delete mode 100644 dist/quagga.map diff --git a/dist/quagga.js b/dist/quagga.js index 95bf7c30..253ead90 100644 --- a/dist/quagga.js +++ b/dist/quagga.js @@ -71,6 +71,8 @@ return /******/ (function(modules) { // webpackBootstrap var _typedefs2 = _interopRequireDefault(_typedefs); + // eslint-disable-line no-unused-vars + var _input_stream = __webpack_require__(3); var _input_stream2 = _interopRequireDefault(_input_stream); @@ -165,12 +167,12 @@ return /******/ (function(modules) { // webpackBootstrap function initInputStream(cb) { var video; - if (_config.inputStream.type == "VideoStream") { + if (_config.inputStream.type === "VideoStream") { video = document.createElement("video"); _inputStream = _input_stream2['default'].createVideoStream(video); - } else if (_config.inputStream.type == "ImageStream") { + } else if (_config.inputStream.type === "ImageStream") { _inputStream = _input_stream2['default'].createImageStream(); - } else if (_config.inputStream.type == "LiveStream") { + } else if (_config.inputStream.type === "LiveStream") { var $viewport = document.querySelector("#interactive.viewport"); if ($viewport) { video = $viewport.querySelector("video"); @@ -224,7 +226,7 @@ return /******/ (function(modules) { // webpackBootstrap if (!_canvasContainer.dom.image) { _canvasContainer.dom.image = document.createElement("canvas"); _canvasContainer.dom.image.className = "imgBuffer"; - if ($viewport && _config.inputStream.type == "ImageStream") { + if ($viewport && _config.inputStream.type === "ImageStream") { $viewport.appendChild(_canvasContainer.dom.image); } } @@ -377,7 +379,7 @@ return /******/ (function(modules) { // webpackBootstrap (function frame() { if (!_stopped) { update(); - if (_onUIThread && _config.inputStream.type == "LiveStream") { + if (_onUIThread && _config.inputStream.type === "LiveStream") { window.requestAnimFrame(frame); } } @@ -436,17 +438,14 @@ return /******/ (function(modules) { // webpackBootstrap } function workerInterface(factory) { - window = self; + /* eslint-disable no-undef*/ if (factory) { - /* jshint ignore:start */ var Quagga = factory(); if (!Quagga) { self.postMessage({ 'event': 'error', message: 'Quagga could not be created' }); return; } - /* jshint ignore:end */ } - /* jshint ignore:start */ var imageWrapper; self.onmessage = function (e) { @@ -468,13 +467,19 @@ return /******/ (function(modules) { // webpackBootstrap }; function onProcessed(result) { - self.postMessage({ 'event': 'processed', imageData: imageWrapper.data, result: result }, [imageWrapper.data.buffer]); + self.postMessage({ + 'event': 'processed', + imageData: imageWrapper.data, + result: result + }, [imageWrapper.data.buffer]); } function ready() { + // eslint-disable-line self.postMessage({ 'event': 'initialized', imageData: imageWrapper.data }, [imageWrapper.data.buffer]); } - /* jshint ignore:end */ + + /* eslint-enable */ } function generateWorkerBlob() { @@ -482,7 +487,7 @@ return /******/ (function(modules) { // webpackBootstrap /* jshint ignore:start */ if (typeof __factorySource__ !== 'undefined') { - factorySource = __factorySource__; + factorySource = __factorySource__; // eslint-disable-line no-undef } /* jshint ignore:end */ @@ -697,7 +702,9 @@ return /******/ (function(modules) { // webpackBootstrap }; that.setCurrentTime = function (time) { - if (_config.type !== "LiveStream") video.currentTime = time; + if (_config.type !== "LiveStream") { + video.currentTime = time; + } }; that.addEventListener = function (event, f, bool) { @@ -832,12 +839,12 @@ return /******/ (function(modules) { // webpackBootstrap return calculatedHeight; }; - that.setWidth = function (width) { - calculatedWidth = width; + that.setWidth = function (newWidth) { + calculatedWidth = newWidth; }; - that.setHeight = function (height) { - calculatedHeight = height; + that.setHeight = function (newHeight) { + calculatedHeight = newHeight; }; that.getRealWidth = function () { @@ -900,9 +907,9 @@ return /******/ (function(modules) { // webpackBootstrap return _topRight; }; - that.setCanvasSize = function (size) { - _canvasSize.x = size.x; - _canvasSize.y = size.y; + that.setCanvasSize = function (canvasSize) { + _canvasSize.x = canvasSize.x; + _canvasSize.y = canvasSize.y; }; that.getCanvasSize = function () { @@ -961,17 +968,17 @@ return /******/ (function(modules) { // webpackBootstrap } } htmlImagesArray.notLoaded = []; - htmlImagesArray.addImage = function (img) { - htmlImagesArray.notLoaded.push(img); + htmlImagesArray.addImage = function (image) { + htmlImagesArray.notLoaded.push(image); }; htmlImagesArray.loaded = function (loadedImg) { var notloadedImgs = htmlImagesArray.notLoaded; for (var x = 0; x < notloadedImgs.length; x++) { - if (notloadedImgs[x] == loadedImg) { + if (notloadedImgs[x] === loadedImg) { notloadedImgs.splice(x, 1); for (var y = 0; y < htmlImagesSrcArray.length; y++) { var imgName = htmlImagesSrcArray[y].substr(htmlImagesSrcArray[y].lastIndexOf("/")); - if (loadedImg.src.lastIndexOf(imgName) != -1) { + if (loadedImg.src.lastIndexOf(imgName) !== -1) { htmlImagesArray[y] = loadedImg; break; } @@ -1067,67 +1074,6 @@ return /******/ (function(modules) { // webpackBootstrap return imgRef.x >= border && imgRef.y >= border && imgRef.x < this.size.x - border && imgRef.y < this.size.y - border; }; - /** - * Transforms an image according to the given affine-transformation matrix. - * @param inImg ImageWrapper a image containing the information to be extracted. - * @param outImg ImageWrapper the image to be filled. The whole image out image is filled by the in image. - * @param M mat2 the matrix used to map point in the out matrix to those in the in matrix - * @param inOrig vec2 origin in the in image - * @param outOrig vec2 origin in the out image - * @returns Number the number of pixels not in the in image - * @see cvd/vision.h - */ - ImageWrapper.transform = function (inImg, outImg, M, inOrig, outOrig) { - var w = outImg.size.x, - h = outImg.size.y, - iw = inImg.size.x, - ih = inImg.size.y; - var across = _glMatrix.vec2.clone([M[0], M[2]]); - var down = _glMatrix.vec2.clone([M[1], M[3]]); - var defaultValue = 0; - - var p0 = _glMatrix.vec2.subtract(inOrig, _glMatrix.mat2.xVec2(M, outOrig, _glMatrix.vec2.clone()), _glMatrix.vec2.clone()); - - var min_x = p0[0], - min_y = p0[1]; - var max_x = min_x, - max_y = min_y; - var p, i, j; - - var sampleFunc = ImageWrapper.sample; - - if (across[0] < 0) min_x += w * across[0];else max_x += w * across[0]; - - if (down[0] < 0) min_x += h * down[0];else max_x += h * down[0]; - - if (across[1] < 0) min_y += w * across[1];else max_y += w * across[1]; - - if (down[1] < 0) min_y += h * down[1];else max_y += h * down[1]; - - var carrigeReturn = _glMatrix.vec2.subtract(down, _glMatrix.vec2.scale(across, w, _glMatrix.vec2.clone()), _glMatrix.vec2.clone()); - - if (min_x >= 0 && min_y >= 0 && max_x < iw - 1 && max_y < ih - 1) { - p = p0; - for (i = 0; i < h; ++i, _glMatrix.vec2.add(p, carrigeReturn)) for (j = 0; j < w; ++j, _glMatrix.vec2.add(p, across)) outImg.set(j, i, sampleFunc(inImg, p[0], p[1])); - return 0; - } else { - var x_bound = iw - 1; - var y_bound = ih - 1; - var count = 0; - p = p0; - for (i = 0; i < h; ++i, _glMatrix.vec2.add(p, carrigeReturn)) { - for (j = 0; j < w; ++j, _glMatrix.vec2.add(p, across)) { - if (0 <= p[0] && 0 <= p[1] && p[0] < x_bound && p[1] < y_bound) { - outImg.set(j, i, sampleFunc(inImg, p[0], p[1])); - } else { - outImg.set(j, i, defaultValue);++count; - } - } - } - return count; - } - }; - /** * Performs bilinear sampling * @param inImg Image to extract sample from @@ -1828,12 +1774,12 @@ return /******/ (function(modules) { // webpackBootstrap property = "rad"; } - function addToCluster(point) { + function addToCluster(newPoint) { var found = false; for (k = 0; k < clusters.length; k++) { cluster = clusters[k]; - if (cluster.fits(point)) { - cluster.add(point); + if (cluster.fits(newPoint)) { + cluster.add(newPoint); found = true; } } @@ -1847,7 +1793,6 @@ return /******/ (function(modules) { // webpackBootstrap clusters.push(_cluster2['default'].create(point, threshold)); } } - return clusters; }; @@ -1925,7 +1870,6 @@ return /******/ (function(modules) { // webpackBootstrap result = top; } } - return result; } }; @@ -1952,10 +1896,7 @@ return /******/ (function(modules) { // webpackBootstrap yStart2 = v + 1; xStart1 = u - 1; xStart2 = u + 1; - sum = inImageData[yStart1 * width + xStart1] /* + inImageData[yStart1*width+u] */ + inImageData[yStart1 * width + xStart2] + - /* inImageData[v*width+xStart1] + */ - inImageData[v * width + u] + /* inImageData[v*width+xStart2] +*/ - inImageData[yStart2 * width + xStart1] /* + inImageData[yStart2*width+u]*/ + inImageData[yStart2 * width + xStart2]; + sum = inImageData[yStart1 * width + xStart1] + inImageData[yStart1 * width + xStart2] + inImageData[v * width + u] + inImageData[yStart2 * width + xStart1] + inImageData[yStart2 * width + xStart2]; outImageData[v * width + u] = sum > 0 ? 1 : 0; } } @@ -1980,10 +1921,7 @@ return /******/ (function(modules) { // webpackBootstrap yStart2 = v + 1; xStart1 = u - 1; xStart2 = u + 1; - sum = inImageData[yStart1 * width + xStart1] /* + inImageData[yStart1*width+u] */ + inImageData[yStart1 * width + xStart2] + - /* inImageData[v*width+xStart1] + */ - inImageData[v * width + u] + /* inImageData[v*width+xStart2] +*/ - inImageData[yStart2 * width + xStart1] /* + inImageData[yStart2*width+u]*/ + inImageData[yStart2 * width + xStart2]; + sum = inImageData[yStart1 * width + xStart1] + inImageData[yStart1 * width + xStart2] + inImageData[v * width + u] + inImageData[yStart2 * width + xStart1] + inImageData[yStart2 * width + xStart2]; outImageData[v * width + u] = sum === 5 ? 1 : 0; } } @@ -2112,7 +2050,9 @@ return /******/ (function(modules) { // webpackBootstrap }; CVUtils.loadImageArray = function (src, callback, canvas) { - if (!canvas) canvas = document.createElement('canvas'); + if (!canvas) { + canvas = document.createElement('canvas'); + } var img = new Image(); img.callback = callback; img.onload = function () { @@ -2167,6 +2107,7 @@ return /******/ (function(modules) { // webpackBootstrap r = 0, g = 0, b = 0; + rgb = rgb || [0, 0, 0]; if (h < 60) { @@ -2361,9 +2302,9 @@ return /******/ (function(modules) { // webpackBootstrap updateCenter(); } - function _add(point) { - pointMap[point.id] = point; - points.push(point); + function _add(pointToAdd) { + pointMap[pointToAdd.id] = pointToAdd; + points.push(pointToAdd); } function updateCenter() { @@ -2379,15 +2320,15 @@ return /******/ (function(modules) { // webpackBootstrap init(); return { - add: function add(point) { - if (!pointMap[point.id]) { - _add(point); + add: function add(pointToAdd) { + if (!pointMap[pointToAdd.id]) { + _add(pointToAdd); updateCenter(); } }, - fits: function fits(point) { + fits: function fits(otherPoint) { // check cosine similarity to center-angle - var similarity = Math.abs(_glMatrix.vec2.dot(point.point.vec, center.vec)); + var similarity = Math.abs(_glMatrix.vec2.dot(otherPoint.point.vec, center.vec)); if (similarity > threshold) { return true; } @@ -2401,10 +2342,10 @@ return /******/ (function(modules) { // webpackBootstrap } }; }, - createPoint: function createPoint(point, id, property) { + createPoint: function createPoint(newPoint, id, property) { return { - rad: point[property], - point: point, + rad: newPoint[property], + point: newPoint, id: id }; } @@ -7512,8 +7453,7 @@ return /******/ (function(modules) { // webpackBootstrap _inputImageWrapper, _skeletonizer, vec2 = _glMatrix2['default'].vec2, - mat2 = _glMatrix2['default'].mat2, - self = typeof window !== 'undefined' ? window : self; + mat2 = _glMatrix2['default'].mat2; function initBuffers() { var skeletonImageData; @@ -7539,7 +7479,7 @@ return /******/ (function(modules) { // webpackBootstrap skeletonImageData = new ArrayBuffer(64 * 1024); _subImageWrapper = new _image_wrapper2['default'](_patchSize, new Uint8Array(skeletonImageData, 0, _patchSize.x * _patchSize.y)); _skelImageWrapper = new _image_wrapper2['default'](_patchSize, new Uint8Array(skeletonImageData, _patchSize.x * _patchSize.y * 3, _patchSize.x * _patchSize.y), undefined, true); - _skeletonizer = (0, _skeletonizer3['default'])(self, { + _skeletonizer = (0, _skeletonizer3['default'])(typeof window !== 'undefined' ? window : self, { size: _patchSize.x }, skeletonImageData); @@ -7911,7 +7851,6 @@ return /******/ (function(modules) { // webpackBootstrap var x, y, currentPatch, - patch, idx, dir, current = { @@ -7935,9 +7874,8 @@ return /******/ (function(modules) { // webpackBootstrap continue; } - patch = _imageToPatchGrid.data[idx]; if (_patchLabelGrid.data[idx] === 0) { - similarity = Math.abs(vec2.dot(patch.vec, currentPatch.vec)); + similarity = Math.abs(vec2.dot(_imageToPatchGrid.data[idx].vec, currentPatch.vec)); if (similarity > threshold) { trace(idx); } @@ -8341,7 +8279,7 @@ return /******/ (function(modules) { // webpackBootstrap do { current.dir = (current.dir + 6) % 8; _trace(current, color, label, edgelabel); - if (ldir != current.dir) { + if (ldir !== current.dir) { Cv.dir = current.dir; P = vertex2D(current.cx, current.cy, 0); P.prev = Cv; @@ -8354,7 +8292,7 @@ return /******/ (function(modules) { // webpackBootstrap Cv.y = current.cy; } ldir = current.dir; - } while (current.cx != sx || current.cy != sy); + } while (current.cx !== sx || current.cy !== sy); Fv.prev = Cv.prev; Cv.prev.next = Fv; } @@ -8380,6 +8318,7 @@ return /******/ (function(modules) { // webpackBootstrap /***/ function(module, exports) { /* @preserve ASM BEGIN */ + /* eslint-disable eqeqeq*/ "use strict"; Object.defineProperty(exports, "__esModule", { @@ -8578,9 +8517,11 @@ return /******/ (function(modules) { // webpackBootstrap skeletonize: skeletonize }; } - /* @preserve ASM END */ exports["default"] = Skeletonizer; + + /* eslint-enable eqeqeq*/ + /* @preserve ASM END */ module.exports = exports["default"]; /***/ }, @@ -8691,7 +8632,7 @@ return /******/ (function(modules) { // webpackBootstrap var _i2of5_reader2 = _interopRequireDefault(_i2of5_reader); - var readers = { + var READERS = { code_128_reader: _code_128_reader2['default'], ean_reader: _ean_reader2['default'], ean_8_reader: _ean_8_reader2['default'], @@ -8755,16 +8696,16 @@ return /******/ (function(modules) { // webpackBootstrap function initReaders() { config.readers.forEach(function (readerConfig) { var reader, - config = {}; + configuration = {}; if (typeof readerConfig === 'object') { reader = readerConfig.format; - config = readerConfig.config; + configuration = readerConfig.config; } else if (typeof readerConfig === 'string') { reader = readerConfig; } console.log("Before registering reader: ", reader); - _barcodeReaders.push(new readers[reader](config)); + _barcodeReaders.push(new READERS[reader](configuration)); }); console.log("Registered Readers: " + _barcodeReaders.map(function (reader) { return JSON.stringify({ format: reader.FORMAT, config: reader.config }); @@ -10335,7 +10276,7 @@ return /******/ (function(modules) { // webpackBootstrap var code = result.code; if (!code) { - return; + return null; } code = code.replace(patterns.IOQ, ''); @@ -10506,10 +10447,10 @@ return /******/ (function(modules) { // webpackBootstrap } ["space", "bar"].forEach(function (key) { - var kind = categorization[key]; - kind.wide.min = Math.floor((kind.narrow.size / kind.narrow.counts + kind.wide.size / kind.wide.counts) / 2); - kind.narrow.max = Math.ceil(kind.wide.min); - kind.wide.max = Math.ceil((kind.wide.size * self.MAX_ACCEPTABLE + self.PADDING) / kind.wide.counts); + var newkind = categorization[key]; + newkind.wide.min = Math.floor((newkind.narrow.size / newkind.narrow.counts + newkind.wide.size / newkind.wide.counts) / 2); + newkind.narrow.max = Math.ceil(newkind.wide.min); + newkind.wide.max = Math.ceil((newkind.wide.size * self.MAX_ACCEPTABLE + self.PADDING) / newkind.wide.counts); }); return categorization; @@ -10691,7 +10632,6 @@ return /******/ (function(modules) { // webpackBootstrap UPCReader.prototype._decode = function () { var result = _ean_reader2["default"].prototype._decode.call(this); - console.log("result", result); if (result && result.code && result.code.length === 13 && result.code.charAt(0) === "0") { result.code = result.code.substring(1); return result; @@ -10817,13 +10757,11 @@ return /******/ (function(modules) { // webpackBootstrap }; UPCEReader.prototype._determineParity = function (codeFrequency, result) { - var self = this, - i, - nrSystem; + var i, nrSystem; - for (nrSystem = 0; nrSystem < self.CODE_FREQUENCY.length; nrSystem++) { - for (i = 0; i < self.CODE_FREQUENCY[nrSystem].length; i++) { - if (codeFrequency === self.CODE_FREQUENCY[nrSystem][i]) { + for (nrSystem = 0; nrSystem < this.CODE_FREQUENCY.length; nrSystem++) { + for (i = 0; i < this.CODE_FREQUENCY[nrSystem].length; i++) { + if (codeFrequency === this.CODE_FREQUENCY[nrSystem][i]) { result.unshift(nrSystem); result.push(i); return true; @@ -12788,7 +12726,6 @@ return /******/ (function(modules) { // webpackBootstrap }; })(); - ; module.exports = exports["default"]; /***/ }, diff --git a/dist/quagga.map b/dist/quagga.map deleted file mode 100644 index e8c92ab5..00000000 --- a/dist/quagga.map +++ /dev/null @@ -1 +0,0 @@ -{"version":3,"sources":["webpack:///webpack/myModuleDefinition","webpack:///webpack/bootstrap 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\"none\";\n }\n }\n }\n }\n}\n\nfunction initInputStream(cb) {\n var video;\n if (_config.inputStream.type == \"VideoStream\") {\n video = document.createElement(\"video\");\n _inputStream = InputStream.createVideoStream(video);\n } else if (_config.inputStream.type == \"ImageStream\") {\n _inputStream = InputStream.createImageStream();\n } else if (_config.inputStream.type == \"LiveStream\") {\n var $viewport = document.querySelector(\"#interactive.viewport\");\n if ($viewport) {\n video = $viewport.querySelector(\"video\");\n if (!video) {\n video = document.createElement(\"video\");\n $viewport.appendChild(video);\n }\n }\n _inputStream = InputStream.createLiveStream(video);\n CameraAccess.request(video, _config.inputStream.constraints, function(err) {\n if (!err) {\n _inputStream.trigger(\"canrecord\");\n } else {\n return cb(err);\n }\n });\n }\n\n _inputStream.setAttribute(\"preload\", \"auto\");\n _inputStream.setAttribute(\"autoplay\", true);\n _inputStream.setInputStream(_config.inputStream);\n _inputStream.addEventListener(\"canrecord\", canRecord.bind(undefined, cb));\n}\n\nfunction canRecord(cb) {\n BarcodeLocator.checkImageConstraints(_inputStream, _config.locator);\n initCanvas();\n _framegrabber = FrameGrabber.create(_inputStream, _canvasContainer.dom.image);\n initConfig();\n\n if (_config.numOfWorkers > 0) {\n initWorkers(function() {\n console.log(\"Workers created\");\n ready(cb);\n });\n } else {\n initializeData();\n ready(cb);\n }\n}\n\nfunction ready(cb){\n _inputStream.play();\n cb();\n}\n\nfunction initCanvas() {\n if (typeof document !== \"undefined\") {\n var $viewport = document.querySelector(\"#interactive.viewport\");\n _canvasContainer.dom.image = document.querySelector(\"canvas.imgBuffer\");\n if (!_canvasContainer.dom.image) {\n _canvasContainer.dom.image = document.createElement(\"canvas\");\n _canvasContainer.dom.image.className = \"imgBuffer\";\n if ($viewport && _config.inputStream.type == \"ImageStream\") {\n $viewport.appendChild(_canvasContainer.dom.image);\n }\n }\n _canvasContainer.ctx.image = _canvasContainer.dom.image.getContext(\"2d\");\n _canvasContainer.dom.image.width = _inputStream.getCanvasSize().x;\n _canvasContainer.dom.image.height = _inputStream.getCanvasSize().y;\n\n _canvasContainer.dom.overlay = document.querySelector(\"canvas.drawingBuffer\");\n if (!_canvasContainer.dom.overlay) {\n _canvasContainer.dom.overlay = document.createElement(\"canvas\");\n _canvasContainer.dom.overlay.className = \"drawingBuffer\";\n if ($viewport) {\n $viewport.appendChild(_canvasContainer.dom.overlay);\n }\n var clearFix = document.createElement(\"br\");\n clearFix.setAttribute(\"clear\", \"all\");\n if ($viewport) {\n $viewport.appendChild(clearFix);\n }\n }\n _canvasContainer.ctx.overlay = _canvasContainer.dom.overlay.getContext(\"2d\");\n _canvasContainer.dom.overlay.width = _inputStream.getCanvasSize().x;\n _canvasContainer.dom.overlay.height = _inputStream.getCanvasSize().y;\n }\n}\n\nfunction initBuffers(imageWrapper) {\n if (imageWrapper) {\n _inputImageWrapper = imageWrapper;\n } else {\n _inputImageWrapper = new ImageWrapper({\n x : _inputStream.getWidth(),\n y : _inputStream.getHeight()\n });\n }\n\n console.log(_inputImageWrapper.size);\n _boxSize = [\n vec2.clone([0, 0]),\n vec2.clone([0, _inputImageWrapper.size.y]),\n vec2.clone([_inputImageWrapper.size.x, _inputImageWrapper.size.y]),\n vec2.clone([_inputImageWrapper.size.x, 0])\n ];\n BarcodeLocator.init(_inputImageWrapper, _config.locator);\n}\n\nfunction getBoundingBoxes() {\n if (_config.locate) {\n return BarcodeLocator.locate();\n } else {\n return [[\n vec2.clone(_boxSize[0]),\n vec2.clone(_boxSize[1]),\n vec2.clone(_boxSize[2]),\n vec2.clone(_boxSize[3])]];\n }\n}\n\nfunction transformResult(result) {\n var topRight = _inputStream.getTopRight(),\n xOffset = topRight.x,\n yOffset = topRight.y,\n i;\n\n if (!result || (xOffset === 0 && yOffset === 0)) {\n return;\n }\n\n\n if (result.line && result.line.length === 2) {\n moveLine(result.line);\n }\n if (result.boxes && result.boxes.length > 0) {\n for (i = 0; i < result.boxes.length; i++) {\n moveBox(result.boxes[i]);\n }\n }\n\n function moveBox(box) {\n var corner = box.length;\n\n while(corner--) {\n box[corner][0] += xOffset;\n box[corner][1] += yOffset;\n }\n }\n\n function moveLine(line) {\n line[0].x += xOffset;\n line[0].y += yOffset;\n line[1].x += xOffset;\n line[1].y += yOffset;\n }\n}\n\nfunction publishResult(result, imageData) {\n if (_onUIThread) {\n transformResult(result);\n if (imageData && result && result.codeResult) {\n if (_resultCollector) {\n _resultCollector.addResult(imageData, _inputStream.getCanvasSize(), result.codeResult);\n }\n }\n }\n\n Events.publish(\"processed\", result);\n if (result && result.codeResult) {\n Events.publish(\"detected\", result);\n }\n}\n\nfunction locateAndDecode() {\n var result,\n boxes;\n\n boxes = getBoundingBoxes();\n if (boxes) {\n result = _decoder.decodeFromBoundingBoxes(boxes);\n result = result || {};\n result.boxes = boxes;\n publishResult(result, _inputImageWrapper.data);\n } else {\n publishResult();\n }\n}\n\nfunction update() {\n var availableWorker;\n\n if (_onUIThread) {\n if (_workerPool.length > 0) {\n availableWorker = _workerPool.filter(function(workerThread) {\n return !workerThread.busy;\n })[0];\n if (availableWorker) {\n _framegrabber.attachData(availableWorker.imageData);\n } else {\n return; // all workers are busy\n }\n } else {\n _framegrabber.attachData(_inputImageWrapper.data);\n }\n if (_framegrabber.grab()) {\n if (availableWorker) {\n availableWorker.busy = true;\n availableWorker.worker.postMessage({\n cmd: 'process',\n imageData: availableWorker.imageData\n }, [availableWorker.imageData.buffer]);\n } else {\n locateAndDecode();\n }\n }\n } else {\n locateAndDecode();\n }\n}\n\nfunction start() {\n _stopped = false;\n ( function frame() {\n if (!_stopped) {\n update();\n if (_onUIThread && _config.inputStream.type == \"LiveStream\") {\n window.requestAnimFrame(frame);\n }\n }\n }());\n}\n\nfunction initWorkers(cb) {\n var i;\n _workerPool = [];\n\n for (i = 0; i < _config.numOfWorkers; i++) {\n initWorker(workerInitialized);\n }\n\n function workerInitialized(workerThread) {\n _workerPool.push(workerThread);\n if (_workerPool.length >= _config.numOfWorkers){\n cb();\n }\n }\n}\n\nfunction initWorker(cb) {\n var blobURL,\n workerThread = {\n worker: undefined,\n imageData: new Uint8Array(_inputStream.getWidth() * _inputStream.getHeight()),\n busy: true\n };\n\n blobURL = generateWorkerBlob();\n workerThread.worker = new Worker(blobURL);\n\n workerThread.worker.onmessage = function(e) {\n if (e.data.event === 'initialized') {\n URL.revokeObjectURL(blobURL);\n workerThread.busy = false;\n workerThread.imageData = new Uint8Array(e.data.imageData);\n console.log(\"Worker initialized\");\n return cb(workerThread);\n } else if (e.data.event === 'processed') {\n workerThread.imageData = new Uint8Array(e.data.imageData);\n workerThread.busy = false;\n publishResult(e.data.result, workerThread.imageData);\n } else if (e.data.event === 'error') {\n console.log(\"Worker error: \" + e.data.message);\n }\n };\n\n workerThread.worker.postMessage({\n cmd: 'init',\n size: {x: _inputStream.getWidth(), y: _inputStream.getHeight()},\n imageData: workerThread.imageData,\n config: _config\n }, [workerThread.imageData.buffer]);\n}\n\n\nfunction workerInterface(factory) {\n window = self;\n if (factory) {\n /* jshint ignore:start */\n var Quagga = factory();\n if (!Quagga) {\n self.postMessage({'event': 'error', message: 'Quagga could not be created'});\n return;\n }\n /* jshint ignore:end */\n }\n /* jshint ignore:start */\n var imageWrapper;\n\n self.onmessage = function(e) {\n if (e.data.cmd === 'init') {\n var config = e.data.config;\n config.numOfWorkers = 0;\n imageWrapper = new Quagga.ImageWrapper({\n x : e.data.size.x,\n y : e.data.size.y\n }, new Uint8Array(e.data.imageData));\n Quagga.init(config, ready, imageWrapper);\n Quagga.onProcessed(onProcessed);\n } else if (e.data.cmd === 'process') {\n imageWrapper.data = new Uint8Array(e.data.imageData);\n Quagga.start();\n } else if (e.data.cmd === 'setReaders') {\n Quagga.setReaders(e.data.readers);\n }\n };\n\n function onProcessed(result) {\n self.postMessage({'event': 'processed', imageData: imageWrapper.data, result: result}, [imageWrapper.data.buffer]);\n }\n\n function ready() {\n self.postMessage({'event': 'initialized', imageData: imageWrapper.data}, [imageWrapper.data.buffer]);\n }\n /* jshint ignore:end */\n}\n\nfunction generateWorkerBlob() {\n var blob,\n factorySource;\n\n /* jshint ignore:start */\n if (typeof __factorySource__ !== 'undefined') {\n factorySource = __factorySource__;\n }\n /* jshint ignore:end */\n\n blob = new Blob(['(' + workerInterface.toString() + ')(' + factorySource + ');'],\n {type : 'text/javascript'});\n\n return window.URL.createObjectURL(blob);\n}\n\nfunction setReaders(readers) {\n if (_decoder) {\n _decoder.setReaders(readers);\n } else if (_onUIThread && _workerPool.length > 0) {\n _workerPool.forEach(function(workerThread) {\n workerThread.worker.postMessage({cmd: 'setReaders', readers: readers});\n });\n }\n}\n\nexport default {\n init : function(config, cb, imageWrapper) {\n _config = merge({}, Config, config);\n if (imageWrapper) {\n _onUIThread = false;\n initializeData(imageWrapper);\n return cb();\n } else {\n initInputStream(cb);\n }\n },\n start : function() {\n start();\n },\n stop : function() {\n _stopped = true;\n _workerPool.forEach(function(workerThread) {\n workerThread.worker.terminate();\n console.log(\"Worker terminated!\");\n });\n _workerPool.length = 0;\n if (_config.inputStream.type === \"LiveStream\") {\n CameraAccess.release();\n _inputStream.clearEventHandlers();\n }\n },\n pause: function() {\n _stopped = true;\n },\n onDetected : function(callback) {\n Events.subscribe(\"detected\", callback);\n },\n offDetected: function(callback) {\n Events.unsubscribe(\"detected\", callback);\n },\n onProcessed: function(callback) {\n Events.subscribe(\"processed\", callback);\n },\n offProcessed: function(callback) {\n Events.unsubscribe(\"processed\", callback);\n },\n setReaders: function(readers) {\n setReaders(readers);\n },\n registerResultCollector: function(resultCollector) {\n if (resultCollector && typeof resultCollector.addResult === 'function') {\n _resultCollector = resultCollector;\n }\n },\n canvas : _canvasContainer,\n decodeSingle : function(config, resultCallback) {\n config = merge({\n inputStream: {\n type : \"ImageStream\",\n sequence : false,\n size: 800,\n src: config.src\n },\n numOfWorkers: 1,\n locator: {\n halfSample: false\n }\n }, config);\n this.init(config, function() {\n Events.once(\"processed\", function(result) {\n _stopped = true;\n resultCallback.call(null, result);\n }, true);\n start();\n });\n },\n ImageWrapper: ImageWrapper,\n ImageDebug: ImageDebug,\n ResultCollector: ResultCollector\n};\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/quagga.js\n **/","/*\n * typedefs.js\n * Normalizes browser-specific prefixes\n */\n\nif (typeof window !== 'undefined') {\n window.requestAnimFrame = (function () {\n return window.requestAnimationFrame ||\n window.webkitRequestAnimationFrame ||\n window.mozRequestAnimationFrame ||\n window.oRequestAnimationFrame ||\n window.msRequestAnimationFrame ||\n function (/* function FrameRequestCallback */ callback) {\n window.setTimeout(callback, 1000 / 60);\n };\n })();\n\n navigator.getUserMedia = navigator.getUserMedia ||\n navigator.webkitGetUserMedia || navigator.mozGetUserMedia || navigator.msGetUserMedia;\n window.URL = window.URL || window.webkitURL || window.mozURL || window.msURL;\n}\nMath.imul = Math.imul || function(a, b) {\n var ah = (a >>> 16) & 0xffff,\n al = a & 0xffff,\n bh = (b >>> 16) & 0xffff,\n bl = b & 0xffff;\n // the shift by 0 fixes the sign on the high part\n // the final |0 converts the unsigned value into a signed value\n return ((al * bl) + (((ah * bl + al * bh) << 16) >>> 0) | 0);\n};\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/typedefs.js\n **/","import ImageLoader from './image_loader';\n\nvar InputStream = {};\nInputStream.createVideoStream = function(video) {\n var that = {},\n _config = null,\n _eventNames = ['canrecord', 'ended'],\n _eventHandlers = {},\n _calculatedWidth,\n _calculatedHeight,\n _topRight = {x: 0, y: 0},\n _canvasSize = {x: 0, y: 0};\n\n function initSize() {\n var width = video.videoWidth,\n height = video.videoHeight;\n\n _calculatedWidth = _config.size ? width/height > 1 ? _config.size : Math.floor((width/height) * _config.size) : width;\n _calculatedHeight = _config.size ? width/height > 1 ? Math.floor((height/width) * _config.size) : _config.size : height;\n\n _canvasSize.x = _calculatedWidth;\n _canvasSize.y = _calculatedHeight;\n }\n\n that.getRealWidth = function() {\n return video.videoWidth;\n };\n\n that.getRealHeight = function() {\n return video.videoHeight;\n };\n\n that.getWidth = function() {\n return _calculatedWidth;\n };\n\n that.getHeight = function() {\n return _calculatedHeight;\n };\n\n that.setWidth = function(width) {\n _calculatedWidth = width;\n };\n\n that.setHeight = function(height) {\n _calculatedHeight = height;\n };\n\n that.setInputStream = function(config) {\n _config = config;\n video.src = (typeof config.src !== 'undefined') ? config.src : '';\n };\n\n that.ended = function() {\n return video.ended;\n };\n\n that.getConfig = function() {\n return _config;\n };\n\n that.setAttribute = function(name, value) {\n video.setAttribute(name, value);\n };\n\n that.pause = function() {\n video.pause();\n };\n\n that.play = function() {\n video.play();\n };\n\n that.setCurrentTime = function(time) {\n if (_config.type !== \"LiveStream\")\n video.currentTime = time;\n };\n\n that.addEventListener = function(event, f, bool) {\n if (_eventNames.indexOf(event) !== -1) {\n if (!_eventHandlers[event]) {\n _eventHandlers[event] = [];\n }\n _eventHandlers[event].push(f);\n } else {\n video.addEventListener(event, f, bool);\n }\n };\n\n that.clearEventHandlers = function() {\n _eventNames.forEach(function(eventName) {\n var handlers = _eventHandlers[eventName];\n if (handlers && handlers.length > 0) {\n handlers.forEach(function(handler) {\n video.removeEventListener(eventName, handler);\n });\n }\n });\n };\n\n that.trigger = function(eventName, args) {\n var j,\n handlers = _eventHandlers[eventName];\n\n if (eventName === 'canrecord') {\n initSize();\n }\n if (handlers && handlers.length > 0) {\n for ( j = 0; j < handlers.length; j++) {\n handlers[j].apply(that, args);\n }\n }\n };\n\n that.setTopRight = function(topRight) {\n _topRight.x = topRight.x;\n _topRight.y = topRight.y;\n };\n\n that.getTopRight = function() {\n return _topRight;\n };\n\n that.setCanvasSize = function(size) {\n _canvasSize.x = size.x;\n _canvasSize.y = size.y;\n };\n\n that.getCanvasSize = function() {\n return _canvasSize;\n };\n\n that.getFrame = function() {\n return video;\n };\n\n return that;\n};\n\nInputStream.createLiveStream = function(video) {\n video.setAttribute(\"autoplay\", true);\n var that = InputStream.createVideoStream(video);\n\n that.ended = function() {\n return false;\n };\n\n return that;\n};\n\nInputStream.createImageStream = function() {\n var that = {};\n var _config = null;\n\n var width = 0,\n height = 0,\n frameIdx = 0,\n paused = true,\n loaded = false,\n imgArray = null,\n size = 0,\n offset = 1,\n baseUrl = null,\n ended = false,\n calculatedWidth,\n calculatedHeight,\n _eventNames = ['canrecord', 'ended'],\n _eventHandlers = {},\n _topRight = {x: 0, y: 0},\n _canvasSize = {x: 0, y: 0};\n\n function loadImages() {\n loaded = false;\n ImageLoader.load(baseUrl, function(imgs) {\n imgArray = imgs;\n width = imgs[0].width;\n height = imgs[0].height;\n calculatedWidth = _config.size ? width/height > 1 ? _config.size : Math.floor((width/height) * _config.size) : width;\n calculatedHeight = _config.size ? width/height > 1 ? Math.floor((height/width) * _config.size) : _config.size : height;\n _canvasSize.x = calculatedWidth;\n _canvasSize.y = calculatedHeight;\n loaded = true;\n frameIdx = 0;\n setTimeout(function() {\n publishEvent(\"canrecord\", []);\n }, 0);\n }, offset, size, _config.sequence);\n }\n\n function publishEvent(eventName, args) {\n var j,\n handlers = _eventHandlers[eventName];\n\n if (handlers && handlers.length > 0) {\n for ( j = 0; j < handlers.length; j++) {\n handlers[j].apply(that, args);\n }\n }\n }\n\n\n that.trigger = publishEvent;\n\n that.getWidth = function() {\n return calculatedWidth;\n };\n\n that.getHeight = function() {\n return calculatedHeight;\n };\n\n that.setWidth = function(width) {\n calculatedWidth = width;\n };\n\n that.setHeight = function(height) {\n calculatedHeight = height;\n };\n\n that.getRealWidth = function() {\n return width;\n };\n\n that.getRealHeight = function() {\n return height;\n };\n\n that.setInputStream = function(stream) {\n _config = stream;\n if (stream.sequence === false) {\n baseUrl = stream.src;\n size = 1;\n } else {\n baseUrl = stream.src;\n size = stream.length;\n }\n loadImages();\n };\n\n that.ended = function() {\n return ended;\n };\n\n that.setAttribute = function() {};\n\n that.getConfig = function() {\n return _config;\n };\n\n that.pause = function() {\n paused = true;\n };\n\n that.play = function() {\n paused = false;\n };\n\n that.setCurrentTime = function(time) {\n frameIdx = time;\n };\n\n that.addEventListener = function(event, f) {\n if (_eventNames.indexOf(event) !== -1) {\n if (!_eventHandlers[event]) {\n _eventHandlers[event] = [];\n }\n _eventHandlers[event].push(f);\n }\n };\n\n that.setTopRight = function(topRight) {\n _topRight.x = topRight.x;\n _topRight.y = topRight.y;\n };\n\n that.getTopRight = function() {\n return _topRight;\n };\n\n that.setCanvasSize = function(size) {\n _canvasSize.x = size.x;\n _canvasSize.y = size.y;\n };\n\n that.getCanvasSize = function() {\n return _canvasSize;\n };\n\n that.getFrame = function() {\n var frame;\n\n if (!loaded){\n return null;\n }\n if (!paused) {\n frame = imgArray[frameIdx];\n if (frameIdx < (size - 1)) {\n frameIdx++;\n } else {\n setTimeout(function() {\n ended = true;\n publishEvent(\"ended\", []);\n }, 0);\n }\n }\n return frame;\n };\n\n return that;\n};\n\nexport default InputStream;\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/input_stream.js\n **/","var ImageLoader = {};\nImageLoader.load = function(directory, callback, offset, size, sequence) {\n var htmlImagesSrcArray = new Array(size),\n htmlImagesArray = new Array(htmlImagesSrcArray.length),\n i,\n img,\n num;\n\n if (sequence === false) {\n htmlImagesSrcArray[0] = directory;\n } else {\n for ( i = 0; i < htmlImagesSrcArray.length; i++) {\n num = (offset + i);\n htmlImagesSrcArray[i] = directory + \"image-\" + (\"00\" + num).slice(-3) + \".jpg\";\n }\n }\n htmlImagesArray.notLoaded = [];\n htmlImagesArray.addImage = function(img) {\n htmlImagesArray.notLoaded.push(img);\n };\n htmlImagesArray.loaded = function(loadedImg) {\n var notloadedImgs = htmlImagesArray.notLoaded;\n for (var x = 0; x < notloadedImgs.length; x++) {\n if (notloadedImgs[x] == loadedImg) {\n notloadedImgs.splice(x, 1);\n for (var y = 0; y < htmlImagesSrcArray.length; y++) {\n var imgName = htmlImagesSrcArray[y].substr(htmlImagesSrcArray[y].lastIndexOf(\"/\"));\n if (loadedImg.src.lastIndexOf(imgName) != -1) {\n htmlImagesArray[y] = loadedImg;\n break;\n }\n }\n break;\n }\n }\n if (notloadedImgs.length === 0) {\n console.log(\"Images loaded\");\n callback.apply(null, [htmlImagesArray]);\n }\n };\n\n for ( i = 0; i < htmlImagesSrcArray.length; i++) {\n img = new Image();\n htmlImagesArray.addImage(img);\n addOnloadHandler(img, htmlImagesArray);\n img.src = htmlImagesSrcArray[i];\n }\n};\n\nfunction addOnloadHandler(img, htmlImagesArray) {\n img.onload = function() {\n htmlImagesArray.loaded(this);\n };\n}\n\nexport default (ImageLoader);\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/image_loader.js\n **/","import SubImage from './subImage';\nimport CVUtils from './cv_utils';\nimport ArrayHelper from './array_helper';\nimport {vec2, mat2} from 'gl-matrix';\n\n/**\n * Represents a basic image combining the data and size.\n * In addition, some methods for manipulation are contained.\n * @param size {x,y} The size of the image in pixel\n * @param data {Array} If given, a flat array containing the pixel data\n * @param ArrayType {Type} If given, the desired DataType of the Array (may be typed/non-typed)\n * @param initialize {Boolean} Indicating if the array should be initialized on creation.\n * @returns {ImageWrapper}\n */\nfunction ImageWrapper(size, data, ArrayType, initialize) {\n if (!data) {\n if (ArrayType) {\n this.data = new ArrayType(size.x * size.y);\n if (ArrayType === Array && initialize) {\n ArrayHelper.init(this.data, 0);\n }\n } else {\n this.data = new Uint8Array(size.x * size.y);\n if (Uint8Array === Array && initialize) {\n ArrayHelper.init(this.data, 0);\n }\n }\n\n } else {\n this.data = data;\n }\n this.size = size;\n}\n\n/**\n * tests if a position is within the image with a given offset\n * @param imgRef {x, y} The location to test\n * @param border Number the padding value in pixel\n * @returns {Boolean} true if location inside the image's border, false otherwise\n * @see cvd/image.h\n */\nImageWrapper.prototype.inImageWithBorder = function(imgRef, border) {\n return (imgRef.x >= border) && (imgRef.y >= border) && (imgRef.x < (this.size.x - border)) && (imgRef.y < (this.size.y - border));\n};\n\n/**\n * Transforms an image according to the given affine-transformation matrix.\n * @param inImg ImageWrapper a image containing the information to be extracted.\n * @param outImg ImageWrapper the image to be filled. The whole image out image is filled by the in image.\n * @param M mat2 the matrix used to map point in the out matrix to those in the in matrix\n * @param inOrig vec2 origin in the in image\n * @param outOrig vec2 origin in the out image\n * @returns Number the number of pixels not in the in image\n * @see cvd/vision.h\n */\nImageWrapper.transform = function(inImg, outImg, M, inOrig, outOrig) {\n var w = outImg.size.x, h = outImg.size.y, iw = inImg.size.x, ih = inImg.size.y;\n var across = vec2.clone([M[0], M[2]]);\n var down = vec2.clone([M[1], M[3]]);\n var defaultValue = 0;\n\n var p0 = vec2.subtract(inOrig, mat2.xVec2(M, outOrig, vec2.clone()), vec2.clone());\n\n var min_x = p0[0], min_y = p0[1];\n var max_x = min_x, max_y = min_y;\n var p, i, j;\n\n var sampleFunc = ImageWrapper.sample;\n\n if (across[0] < 0)\n min_x += w * across[0];\n else\n max_x += w * across[0];\n\n if (down[0] < 0)\n min_x += h * down[0];\n else\n max_x += h * down[0];\n\n if (across[1] < 0)\n min_y += w * across[1];\n else\n max_y += w * across[1];\n\n if (down[1] < 0)\n min_y += h * down[1];\n else\n max_y += h * down[1];\n\n var carrigeReturn = vec2.subtract(down, vec2.scale(across, w, vec2.clone()), vec2.clone());\n\n if (min_x >= 0 && min_y >= 0 && max_x < iw - 1 && max_y < ih - 1) {\n p = p0;\n for ( i = 0; i < h; ++i, vec2.add(p, carrigeReturn))\n for ( j = 0; j < w; ++j, vec2.add(p, across))\n outImg.set(j, i, sampleFunc(inImg, p[0], p[1]));\n return 0;\n } else {\n var x_bound = iw - 1;\n var y_bound = ih - 1;\n var count = 0;\n p = p0;\n for ( i = 0; i < h; ++i, vec2.add(p, carrigeReturn)) {\n for ( j = 0; j < w; ++j, vec2.add(p, across)) {\n if (0 <= p[0] && 0 <= p[1] && p[0] < x_bound && p[1] < y_bound) {\n outImg.set(j, i, sampleFunc(inImg, p[0], p[1]));\n } else {\n outImg.set(j, i, defaultValue); ++count;\n }\n }\n }\n return count;\n }\n};\n\n/**\n * Performs bilinear sampling\n * @param inImg Image to extract sample from\n * @param x the x-coordinate\n * @param y the y-coordinate\n * @returns the sampled value\n * @see cvd/vision.h\n */\nImageWrapper.sample = function(inImg, x, y) {\n var lx = Math.floor(x);\n var ly = Math.floor(y);\n var w = inImg.size.x;\n var base = ly * inImg.size.x + lx;\n var a = inImg.data[base + 0];\n var b = inImg.data[base + 1];\n var c = inImg.data[base + w];\n var d = inImg.data[base + w + 1];\n var e = a - b;\n x -= lx;\n y -= ly;\n\n var result = Math.floor(x * (y * (e - c + d) - e) + y * (c - a) + a);\n return result;\n};\n\n/**\n * Initializes a given array. Sets each element to zero.\n * @param array {Array} The array to initialize\n */\nImageWrapper.clearArray = function(array) {\n var l = array.length;\n while (l--) {\n array[l] = 0;\n }\n};\n\n/**\n * Creates a {SubImage} from the current image ({this}).\n * @param from {ImageRef} The position where to start the {SubImage} from. (top-left corner)\n * @param size {ImageRef} The size of the resulting image\n * @returns {SubImage} A shared part of the original image\n */\nImageWrapper.prototype.subImage = function(from, size) {\n return new SubImage(from, size, this);\n};\n\n/**\n * Creates an {ImageWrapper) and copies the needed underlying image-data area\n * @param imageWrapper {ImageWrapper} The target {ImageWrapper} where the data should be copied\n * @param from {ImageRef} The location where to copy from (top-left location)\n */\nImageWrapper.prototype.subImageAsCopy = function(imageWrapper, from) {\n var sizeY = imageWrapper.size.y, sizeX = imageWrapper.size.x;\n var x, y;\n for ( x = 0; x < sizeX; x++) {\n for ( y = 0; y < sizeY; y++) {\n imageWrapper.data[y * sizeX + x] = this.data[(from.y + y) * this.size.x + from.x + x];\n }\n }\n};\n\nImageWrapper.prototype.copyTo = function(imageWrapper) {\n var length = this.data.length, srcData = this.data, dstData = imageWrapper.data;\n\n while (length--) {\n dstData[length] = srcData[length];\n }\n};\n\n/**\n * Retrieves a given pixel position from the image\n * @param x {Number} The x-position\n * @param y {Number} The y-position\n * @returns {Number} The grayscale value at the pixel-position\n */\nImageWrapper.prototype.get = function(x, y) {\n return this.data[y * this.size.x + x];\n};\n\n/**\n * Retrieves a given pixel position from the image\n * @param x {Number} The x-position\n * @param y {Number} The y-position\n * @returns {Number} The grayscale value at the pixel-position\n */\nImageWrapper.prototype.getSafe = function(x, y) {\n var i;\n\n if (!this.indexMapping) {\n this.indexMapping = {\n x : [],\n y : []\n };\n for (i = 0; i < this.size.x; i++) {\n this.indexMapping.x[i] = i;\n this.indexMapping.x[i + this.size.x] = i;\n }\n for (i = 0; i < this.size.y; i++) {\n this.indexMapping.y[i] = i;\n this.indexMapping.y[i + this.size.y] = i;\n }\n }\n return this.data[(this.indexMapping.y[y + this.size.y]) * this.size.x + this.indexMapping.x[x + this.size.x]];\n};\n\n/**\n * Sets a given pixel position in the image\n * @param x {Number} The x-position\n * @param y {Number} The y-position\n * @param value {Number} The grayscale value to set\n * @returns {ImageWrapper} The Image itself (for possible chaining)\n */\nImageWrapper.prototype.set = function(x, y, value) {\n this.data[y * this.size.x + x] = value;\n return this;\n};\n\n/**\n * Sets the border of the image (1 pixel) to zero\n */\nImageWrapper.prototype.zeroBorder = function() {\n var i, width = this.size.x, height = this.size.y, data = this.data;\n for ( i = 0; i < width; i++) {\n data[i] = data[(height - 1) * width + i] = 0;\n }\n for ( i = 1; i < height - 1; i++) {\n data[i * width] = data[i * width + (width - 1)] = 0;\n }\n};\n\n/**\n * Inverts a binary image in place\n */\nImageWrapper.prototype.invert = function() {\n var data = this.data, length = data.length;\n\n while (length--) {\n data[length] = data[length] ? 0 : 1;\n }\n\n};\n\nImageWrapper.prototype.convolve = function(kernel) {\n var x, y, kx, ky, kSize = (kernel.length / 2) | 0, accu = 0;\n for ( y = 0; y < this.size.y; y++) {\n for ( x = 0; x < this.size.x; x++) {\n accu = 0;\n for ( ky = -kSize; ky <= kSize; ky++) {\n for ( kx = -kSize; kx <= kSize; kx++) {\n accu += kernel[ky+kSize][kx + kSize] * this.getSafe(x + kx, y + ky);\n }\n }\n this.data[y * this.size.x + x] = accu;\n }\n }\n};\n\nImageWrapper.prototype.moments = function(labelcount) {\n var data = this.data,\n x,\n y,\n height = this.size.y,\n width = this.size.x,\n val,\n ysq,\n labelsum = [],\n i,\n label,\n mu11,\n mu02,\n mu20,\n x_,\n y_,\n tmp,\n result = [],\n PI = Math.PI,\n PI_4 = PI / 4;\n\n if (labelcount <= 0) {\n return result;\n }\n\n for ( i = 0; i < labelcount; i++) {\n labelsum[i] = {\n m00 : 0,\n m01 : 0,\n m10 : 0,\n m11 : 0,\n m02 : 0,\n m20 : 0,\n theta : 0,\n rad : 0\n };\n }\n\n for ( y = 0; y < height; y++) {\n ysq = y * y;\n for ( x = 0; x < width; x++) {\n val = data[y * width + x];\n if (val > 0) {\n label = labelsum[val - 1];\n label.m00 += 1;\n label.m01 += y;\n label.m10 += x;\n label.m11 += x * y;\n label.m02 += ysq;\n label.m20 += x * x;\n }\n }\n }\n\n for ( i = 0; i < labelcount; i++) {\n label = labelsum[i];\n if (!isNaN(label.m00) && label.m00 !== 0) {\n x_ = label.m10 / label.m00;\n y_ = label.m01 / label.m00;\n mu11 = label.m11 / label.m00 - x_ * y_;\n mu02 = label.m02 / label.m00 - y_ * y_;\n mu20 = label.m20 / label.m00 - x_ * x_;\n tmp = (mu02 - mu20) / (2 * mu11);\n tmp = 0.5 * Math.atan(tmp) + (mu11 >= 0 ? PI_4 : -PI_4 ) + PI;\n label.theta = (tmp * 180 / PI + 90) % 180 - 90;\n if (label.theta < 0) {\n label.theta += 180;\n }\n label.rad = tmp > PI ? tmp - PI : tmp;\n label.vec = vec2.clone([Math.cos(tmp), Math.sin(tmp)]);\n result.push(label);\n }\n }\n\n return result;\n};\n\n/**\n * Displays the {ImageWrapper} in a given canvas\n * @param canvas {Canvas} The canvas element to write to\n * @param scale {Number} Scale which is applied to each pixel-value\n */\nImageWrapper.prototype.show = function(canvas, scale) {\n var ctx,\n frame,\n data,\n current,\n pixel,\n x,\n y;\n\n if (!scale) {\n scale = 1.0;\n }\n ctx = canvas.getContext('2d');\n canvas.width = this.size.x;\n canvas.height = this.size.y;\n frame = ctx.getImageData(0, 0, canvas.width, canvas.height);\n data = frame.data;\n current = 0;\n for (y = 0; y < this.size.y; y++) {\n for (x = 0; x < this.size.x; x++) {\n pixel = y * this.size.x + x;\n current = this.get(x, y) * scale;\n data[pixel * 4 + 0] = current;\n data[pixel * 4 + 1] = current;\n data[pixel * 4 + 2] = current;\n data[pixel * 4 + 3] = 255;\n }\n }\n //frame.data = data;\n ctx.putImageData(frame, 0, 0);\n};\n\n/**\n * Displays the {SubImage} in a given canvas\n * @param canvas {Canvas} The canvas element to write to\n * @param scale {Number} Scale which is applied to each pixel-value\n */\nImageWrapper.prototype.overlay = function(canvas, scale, from) {\n if (!scale || scale < 0 || scale > 360) {\n scale = 360;\n }\n var hsv = [0, 1, 1];\n var rgb = [0, 0, 0];\n var whiteRgb = [255, 255, 255];\n var blackRgb = [0, 0, 0];\n var result = [];\n var ctx = canvas.getContext('2d');\n var frame = ctx.getImageData(from.x, from.y, this.size.x, this.size.y);\n var data = frame.data;\n var length = this.data.length;\n while (length--) {\n hsv[0] = this.data[length] * scale;\n result = hsv[0] <= 0 ? whiteRgb : hsv[0] >= 360 ? blackRgb : CVUtils.hsv2rgb(hsv, rgb);\n data[length * 4 + 0] = result[0];\n data[length * 4 + 1] = result[1];\n data[length * 4 + 2] = result[2];\n data[length * 4 + 3] = 255;\n }\n ctx.putImageData(frame, from.x, from.y);\n};\n\nexport default ImageWrapper;\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/image_wrapper.js\n **/","/**\n * Construct representing a part of another {ImageWrapper}. Shares data\n * between the parent and the child.\n * @param from {ImageRef} The position where to start the {SubImage} from. (top-left corner)\n * @param size {ImageRef} The size of the resulting image\n * @param I {ImageWrapper} The {ImageWrapper} to share from\n * @returns {SubImage} A shared part of the original image\n */\nfunction SubImage(from, size, I) {\n if (!I) {\n I = {\n data : null,\n size : size\n };\n }\n this.data = I.data;\n this.originalSize = I.size;\n this.I = I;\n\n this.from = from;\n this.size = size;\n}\n\n/**\n * Displays the {SubImage} in a given canvas\n * @param canvas {Canvas} The canvas element to write to\n * @param scale {Number} Scale which is applied to each pixel-value\n */\nSubImage.prototype.show = function(canvas, scale) {\n var ctx,\n frame,\n data,\n current,\n y,\n x,\n pixel;\n\n if (!scale) {\n scale = 1.0;\n }\n ctx = canvas.getContext('2d');\n canvas.width = this.size.x;\n canvas.height = this.size.y;\n frame = ctx.getImageData(0, 0, canvas.width, canvas.height);\n data = frame.data;\n current = 0;\n for (y = 0; y < this.size.y; y++) {\n for (x = 0; x < this.size.x; x++) {\n pixel = y * this.size.x + x;\n current = this.get(x, y) * scale;\n data[pixel * 4 + 0] = current;\n data[pixel * 4 + 1] = current;\n data[pixel * 4 + 2] = current;\n data[pixel * 4 + 3] = 255;\n }\n }\n frame.data = data;\n ctx.putImageData(frame, 0, 0);\n};\n\n/**\n * Retrieves a given pixel position from the {SubImage}\n * @param x {Number} The x-position\n * @param y {Number} The y-position\n * @returns {Number} The grayscale value at the pixel-position\n */\nSubImage.prototype.get = function(x, y) {\n return this.data[(this.from.y + y) * this.originalSize.x + this.from.x + x];\n};\n\n/**\n * Updates the underlying data from a given {ImageWrapper}\n * @param image {ImageWrapper} The updated image\n */\nSubImage.prototype.updateData = function(image) {\n this.originalSize = image.size;\n this.data = image.data;\n};\n\n/**\n * Updates the position of the shared area\n * @param from {x,y} The new location\n * @returns {SubImage} returns {this} for possible chaining\n */\nSubImage.prototype.updateFrom = function(from) {\n this.from = from;\n return this;\n};\n\nexport default (SubImage);\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/subImage.js\n **/","import Cluster2 from './cluster';\nimport ArrayHelper from './array_helper';\nimport {vec2, vec3} from 'gl-matrix';\n\nvar CVUtils = {};\n\n/**\n * @param x x-coordinate\n * @param y y-coordinate\n * @return ImageReference {x,y} Coordinate\n */\nCVUtils.imageRef = function(x, y) {\n var that = {\n x : x,\n y : y,\n toVec2 : function() {\n return vec2.clone([this.x, this.y]);\n },\n toVec3 : function() {\n return vec3.clone([this.x, this.y, 1]);\n },\n round : function() {\n this.x = this.x > 0.0 ? Math.floor(this.x + 0.5) : Math.floor(this.x - 0.5);\n this.y = this.y > 0.0 ? Math.floor(this.y + 0.5) : Math.floor(this.y - 0.5);\n return this;\n }\n };\n return that;\n};\n\n/**\n * Computes an integral image of a given grayscale image.\n * @param imageDataContainer {ImageDataContainer} the image to be integrated\n */\nCVUtils.computeIntegralImage2 = function(imageWrapper, integralWrapper) {\n var imageData = imageWrapper.data;\n var width = imageWrapper.size.x;\n var height = imageWrapper.size.y;\n var integralImageData = integralWrapper.data;\n var sum = 0, posA = 0, posB = 0, posC = 0, posD = 0, x, y;\n\n // sum up first column\n posB = width;\n sum = 0;\n for ( y = 1; y < height; y++) {\n sum += imageData[posA];\n integralImageData[posB] += sum;\n posA += width;\n posB += width;\n }\n\n posA = 0;\n posB = 1;\n sum = 0;\n for ( x = 1; x < width; x++) {\n sum += imageData[posA];\n integralImageData[posB] += sum;\n posA++;\n posB++;\n }\n\n for ( y = 1; y < height; y++) {\n posA = y * width + 1;\n posB = (y - 1) * width + 1;\n posC = y * width;\n posD = (y - 1) * width;\n for ( x = 1; x < width; x++) {\n integralImageData[posA] += imageData[posA] + integralImageData[posB] + integralImageData[posC] - integralImageData[posD];\n posA++;\n posB++;\n posC++;\n posD++;\n }\n }\n};\n\nCVUtils.computeIntegralImage = function(imageWrapper, integralWrapper) {\n var imageData = imageWrapper.data;\n var width = imageWrapper.size.x;\n var height = imageWrapper.size.y;\n var integralImageData = integralWrapper.data;\n var sum = 0;\n\n // sum up first row\n for (var i = 0; i < width; i++) {\n sum += imageData[i];\n integralImageData[i] = sum;\n }\n\n for (var v = 1; v < height; v++) {\n sum = 0;\n for (var u = 0; u < width; u++) {\n sum += imageData[v * width + u];\n integralImageData[((v) * width) + u] = sum + integralImageData[(v - 1) * width + u];\n }\n }\n};\n\nCVUtils.thresholdImage = function(imageWrapper, threshold, targetWrapper) {\n if (!targetWrapper) {\n targetWrapper = imageWrapper;\n }\n var imageData = imageWrapper.data, length = imageData.length, targetData = targetWrapper.data;\n\n while (length--) {\n targetData[length] = imageData[length] < threshold ? 1 : 0;\n }\n};\n\nCVUtils.computeHistogram = function(imageWrapper, bitsPerPixel) {\n if (!bitsPerPixel) {\n bitsPerPixel = 8;\n }\n var imageData = imageWrapper.data,\n length = imageData.length,\n bitShift = 8 - bitsPerPixel,\n bucketCnt = 1 << bitsPerPixel,\n hist = new Int32Array(bucketCnt);\n\n while (length--) {\n hist[imageData[length] >> bitShift]++;\n }\n return hist;\n};\n\nCVUtils.sharpenLine = function(line) {\n var i,\n length = line.length,\n left = line[0],\n center = line[1],\n right;\n\n for (i = 1; i < length - 1; i++) {\n right = line[i + 1];\n // -1 4 -1 kernel\n line[i-1] = (((center * 2) - left - right)) & 255;\n left = center;\n center = right;\n }\n return line;\n};\n\nCVUtils.determineOtsuThreshold = function(imageWrapper, bitsPerPixel) {\n if (!bitsPerPixel) {\n bitsPerPixel = 8;\n }\n var hist,\n threshold,\n bitShift = 8 - bitsPerPixel;\n\n function px(init, end) {\n var sum = 0, i;\n for ( i = init; i <= end; i++) {\n sum += hist[i];\n }\n return sum;\n }\n\n function mx(init, end) {\n var i, sum = 0;\n\n for ( i = init; i <= end; i++) {\n sum += i * hist[i];\n }\n\n return sum;\n }\n\n function determineThreshold() {\n var vet = [0], p1, p2, p12, k, m1, m2, m12,\n max = (1 << bitsPerPixel) - 1;\n\n hist = CVUtils.computeHistogram(imageWrapper, bitsPerPixel);\n for ( k = 1; k < max; k++) {\n p1 = px(0, k);\n p2 = px(k + 1, max);\n p12 = p1 * p2;\n if (p12 === 0) {\n p12 = 1;\n }\n m1 = mx(0, k) * p2;\n m2 = mx(k + 1, max) * p1;\n m12 = m1 - m2;\n vet[k] = m12 * m12 / p12;\n }\n return ArrayHelper.maxIndex(vet);\n }\n\n threshold = determineThreshold();\n return threshold << bitShift;\n};\n\nCVUtils.otsuThreshold = function(imageWrapper, targetWrapper) {\n var threshold = CVUtils.determineOtsuThreshold(imageWrapper);\n\n CVUtils.thresholdImage(imageWrapper, threshold, targetWrapper);\n return threshold;\n};\n\n// local thresholding\nCVUtils.computeBinaryImage = function(imageWrapper, integralWrapper, targetWrapper) {\n CVUtils.computeIntegralImage(imageWrapper, integralWrapper);\n\n if (!targetWrapper) {\n targetWrapper = imageWrapper;\n }\n var imageData = imageWrapper.data;\n var targetData = targetWrapper.data;\n var width = imageWrapper.size.x;\n var height = imageWrapper.size.y;\n var integralImageData = integralWrapper.data;\n var sum = 0, v, u, kernel = 3, A, B, C, D, avg, size = (kernel * 2 + 1) * (kernel * 2 + 1);\n\n // clear out top & bottom-border\n for ( v = 0; v <= kernel; v++) {\n for ( u = 0; u < width; u++) {\n targetData[((v) * width) + u] = 0;\n targetData[(((height - 1) - v) * width) + u] = 0;\n }\n }\n\n // clear out left & right border\n for ( v = kernel; v < height - kernel; v++) {\n for ( u = 0; u <= kernel; u++) {\n targetData[((v) * width) + u] = 0;\n targetData[((v) * width) + (width - 1 - u)] = 0;\n }\n }\n\n for ( v = kernel + 1; v < height - kernel - 1; v++) {\n for ( u = kernel + 1; u < width - kernel; u++) {\n A = integralImageData[(v - kernel - 1) * width + (u - kernel - 1)];\n B = integralImageData[(v - kernel - 1) * width + (u + kernel)];\n C = integralImageData[(v + kernel) * width + (u - kernel - 1)];\n D = integralImageData[(v + kernel) * width + (u + kernel)];\n sum = D - C - B + A;\n avg = sum / (size);\n targetData[v * width + u] = imageData[v * width + u] > (avg + 5) ? 0 : 1;\n }\n }\n};\n\nCVUtils.cluster = function(points, threshold, property) {\n var i, k, cluster, point, clusters = [];\n\n if (!property) {\n property = \"rad\";\n }\n\n function addToCluster(point) {\n var found = false;\n for ( k = 0; k < clusters.length; k++) {\n cluster = clusters[k];\n if (cluster.fits(point)) {\n cluster.add(point);\n found = true;\n }\n }\n return found;\n }\n\n // iterate over each cloud\n for ( i = 0; i < points.length; i++) {\n point = Cluster2.createPoint(points[i], i, property);\n if (!addToCluster(point)) {\n clusters.push(Cluster2.create(point, threshold));\n }\n }\n\n return clusters;\n\n};\n\nCVUtils.Tracer = {\n trace : function(points, vec) {\n var iteration, maxIterations = 10, top = [], result = [], centerPos = 0, currentPos = 0;\n\n function trace(idx, forward) {\n var from, to, toIdx, predictedPos, thresholdX = 1, thresholdY = Math.abs(vec[1] / 10), found = false;\n\n function match(pos, predicted) {\n if (pos.x > (predicted.x - thresholdX) && pos.x < (predicted.x + thresholdX) && pos.y > (predicted.y - thresholdY) && pos.y < (predicted.y + thresholdY)) {\n return true;\n } else {\n return false;\n }\n }\n\n // check if the next index is within the vec specifications\n // if not, check as long as the threshold is met\n\n from = points[idx];\n if (forward) {\n predictedPos = {\n x : from.x + vec[0],\n y : from.y + vec[1]\n };\n } else {\n predictedPos = {\n x : from.x - vec[0],\n y : from.y - vec[1]\n };\n }\n\n toIdx = forward ? idx + 1 : idx - 1;\n to = points[toIdx];\n while (to && ( found = match(to, predictedPos)) !== true && (Math.abs(to.y - from.y) < vec[1])) {\n toIdx = forward ? toIdx + 1 : toIdx - 1;\n to = points[toIdx];\n }\n\n return found ? toIdx : null;\n }\n\n for ( iteration = 0; iteration < maxIterations; iteration++) {\n // randomly select point to start with\n centerPos = Math.floor(Math.random() * points.length);\n\n // trace forward\n top = [];\n currentPos = centerPos;\n top.push(points[currentPos]);\n while (( currentPos = trace(currentPos, true)) !== null) {\n top.push(points[currentPos]);\n }\n if (centerPos > 0) {\n currentPos = centerPos;\n while (( currentPos = trace(currentPos, false)) !== null) {\n top.push(points[currentPos]);\n }\n }\n\n if (top.length > result.length) {\n result = top;\n }\n }\n\n return result;\n\n }\n};\n\nCVUtils.DILATE = 1;\nCVUtils.ERODE = 2;\n\nCVUtils.dilate = function(inImageWrapper, outImageWrapper) {\n var v, u, inImageData = inImageWrapper.data, outImageData = outImageWrapper.data, height = inImageWrapper.size.y, width = inImageWrapper.size.x, sum, yStart1, yStart2, xStart1, xStart2;\n\n for ( v = 1; v < height - 1; v++) {\n for ( u = 1; u < width - 1; u++) {\n yStart1 = v - 1;\n yStart2 = v + 1;\n xStart1 = u - 1;\n xStart2 = u + 1;\n sum = inImageData[yStart1 * width + xStart1]/* + inImageData[yStart1*width+u] */ + inImageData[yStart1 * width + xStart2] +\n /* inImageData[v*width+xStart1] + */\n inImageData[v * width + u] + /* inImageData[v*width+xStart2] +*/\n inImageData[yStart2 * width + xStart1]/* + inImageData[yStart2*width+u]*/ + inImageData[yStart2 * width + xStart2];\n outImageData[v * width + u] = sum > 0 ? 1 : 0;\n }\n }\n};\n\nCVUtils.erode = function(inImageWrapper, outImageWrapper) {\n var v, u, inImageData = inImageWrapper.data, outImageData = outImageWrapper.data, height = inImageWrapper.size.y, width = inImageWrapper.size.x, sum, yStart1, yStart2, xStart1, xStart2;\n\n for ( v = 1; v < height - 1; v++) {\n for ( u = 1; u < width - 1; u++) {\n yStart1 = v - 1;\n yStart2 = v + 1;\n xStart1 = u - 1;\n xStart2 = u + 1;\n sum = inImageData[yStart1 * width + xStart1]/* + inImageData[yStart1*width+u] */ + inImageData[yStart1 * width + xStart2] +\n /* inImageData[v*width+xStart1] + */\n inImageData[v * width + u] + /* inImageData[v*width+xStart2] +*/\n inImageData[yStart2 * width + xStart1]/* + inImageData[yStart2*width+u]*/ + inImageData[yStart2 * width + xStart2];\n outImageData[v * width + u] = sum === 5 ? 1 : 0;\n }\n }\n};\n\nCVUtils.subtract = function(aImageWrapper, bImageWrapper, resultImageWrapper) {\n if (!resultImageWrapper) {\n resultImageWrapper = aImageWrapper;\n }\n var length = aImageWrapper.data.length, aImageData = aImageWrapper.data, bImageData = bImageWrapper.data, cImageData = resultImageWrapper.data;\n\n while (length--) {\n cImageData[length] = aImageData[length] - bImageData[length];\n }\n};\n\nCVUtils.bitwiseOr = function(aImageWrapper, bImageWrapper, resultImageWrapper) {\n if (!resultImageWrapper) {\n resultImageWrapper = aImageWrapper;\n }\n var length = aImageWrapper.data.length, aImageData = aImageWrapper.data, bImageData = bImageWrapper.data, cImageData = resultImageWrapper.data;\n\n while (length--) {\n cImageData[length] = aImageData[length] || bImageData[length];\n }\n};\n\nCVUtils.countNonZero = function(imageWrapper) {\n var length = imageWrapper.data.length, data = imageWrapper.data, sum = 0;\n\n while (length--) {\n sum += data[length];\n }\n return sum;\n};\n\nCVUtils.topGeneric = function(list, top, scoreFunc) {\n var i, minIdx = 0, min = 0, queue = [], score, hit, pos;\n\n for ( i = 0; i < top; i++) {\n queue[i] = {\n score : 0,\n item : null\n };\n }\n\n for ( i = 0; i < list.length; i++) {\n score = scoreFunc.apply(this, [list[i]]);\n if (score > min) {\n hit = queue[minIdx];\n hit.score = score;\n hit.item = list[i];\n min = Number.MAX_VALUE;\n for ( pos = 0; pos < top; pos++) {\n if (queue[pos].score < min) {\n min = queue[pos].score;\n minIdx = pos;\n }\n }\n }\n }\n\n return queue;\n};\n\nCVUtils.grayArrayFromImage = function(htmlImage, offsetX, ctx, array) {\n ctx.drawImage(htmlImage, offsetX, 0, htmlImage.width, htmlImage.height);\n var ctxData = ctx.getImageData(offsetX, 0, htmlImage.width, htmlImage.height).data;\n CVUtils.computeGray(ctxData, array);\n};\n\nCVUtils.grayArrayFromContext = function(ctx, size, offset, array) {\n var ctxData = ctx.getImageData(offset.x, offset.y, size.x, size.y).data;\n CVUtils.computeGray(ctxData, array);\n};\n\nCVUtils.grayAndHalfSampleFromCanvasData = function(canvasData, size, outArray) {\n var topRowIdx = 0;\n var bottomRowIdx = size.x;\n var endIdx = Math.floor(canvasData.length / 4);\n var outWidth = size.x / 2;\n var outImgIdx = 0;\n var inWidth = size.x;\n var i;\n\n while (bottomRowIdx < endIdx) {\n for ( i = 0; i < outWidth; i++) {\n outArray[outImgIdx] = Math.floor(((0.299 * canvasData[topRowIdx * 4 + 0] + 0.587 * canvasData[topRowIdx * 4 + 1] + 0.114 * canvasData[topRowIdx * 4 + 2]) + (0.299 * canvasData[(topRowIdx + 1) * 4 + 0] + 0.587 * canvasData[(topRowIdx + 1) * 4 + 1] + 0.114 * canvasData[(topRowIdx + 1) * 4 + 2]) + (0.299 * canvasData[(bottomRowIdx) * 4 + 0] + 0.587 * canvasData[(bottomRowIdx) * 4 + 1] + 0.114 * canvasData[(bottomRowIdx) * 4 + 2]) + (0.299 * canvasData[(bottomRowIdx + 1) * 4 + 0] + 0.587 * canvasData[(bottomRowIdx + 1) * 4 + 1] + 0.114 * canvasData[(bottomRowIdx + 1) * 4 + 2])) / 4);\n outImgIdx++;\n topRowIdx = topRowIdx + 2;\n bottomRowIdx = bottomRowIdx + 2;\n }\n topRowIdx = topRowIdx + inWidth;\n bottomRowIdx = bottomRowIdx + inWidth;\n }\n\n};\n\nCVUtils.computeGray = function(imageData, outArray, config) {\n var l = (imageData.length / 4) | 0,\n i,\n singleChannel = config && config.singleChannel === true;\n\n if (singleChannel) {\n for (i = 0; i < l; i++) {\n outArray[i] = imageData[i * 4 + 0];\n }\n } else {\n for (i = 0; i < l; i++) {\n outArray[i] = Math.floor(0.299 * imageData[i * 4 + 0] + 0.587 * imageData[i * 4 + 1] + 0.114 * imageData[i * 4 + 2]);\n }\n }\n};\n\nCVUtils.loadImageArray = function(src, callback, canvas) {\n if (!canvas)\n canvas = document.createElement('canvas');\n var img = new Image();\n img.callback = callback;\n img.onload = function() {\n canvas.width = this.width;\n canvas.height = this.height;\n var ctx = canvas.getContext('2d');\n ctx.drawImage(this, 0, 0);\n var array = new Uint8Array(this.width * this.height);\n ctx.drawImage(this, 0, 0);\n var data = ctx.getImageData(0, 0, this.width, this.height).data;\n CVUtils.computeGray(data, array);\n this.callback(array, {\n x : this.width,\n y : this.height\n }, this);\n };\n img.src = src;\n};\n\n/**\n * @param inImg {ImageWrapper} input image to be sampled\n * @param outImg {ImageWrapper} to be stored in\n */\nCVUtils.halfSample = function(inImgWrapper, outImgWrapper) {\n var inImg = inImgWrapper.data;\n var inWidth = inImgWrapper.size.x;\n var outImg = outImgWrapper.data;\n var topRowIdx = 0;\n var bottomRowIdx = inWidth;\n var endIdx = inImg.length;\n var outWidth = inWidth / 2;\n var outImgIdx = 0;\n while (bottomRowIdx < endIdx) {\n for (var i = 0; i < outWidth; i++) {\n outImg[outImgIdx] = Math.floor((inImg[topRowIdx] + inImg[topRowIdx + 1] + inImg[bottomRowIdx] + inImg[bottomRowIdx + 1]) / 4);\n outImgIdx++;\n topRowIdx = topRowIdx + 2;\n bottomRowIdx = bottomRowIdx + 2;\n }\n topRowIdx = topRowIdx + inWidth;\n bottomRowIdx = bottomRowIdx + inWidth;\n }\n};\n\nCVUtils.hsv2rgb = function(hsv, rgb) {\n var h = hsv[0], s = hsv[1], v = hsv[2], c = v * s, x = c * (1 - Math.abs((h / 60) % 2 - 1)), m = v - c, r = 0, g = 0, b = 0;\n rgb = rgb || [0, 0, 0];\n\n if (h < 60) {\n r = c;\n g = x;\n } else if (h < 120) {\n r = x;\n g = c;\n } else if (h < 180) {\n g = c;\n b = x;\n } else if (h < 240) {\n g = x;\n b = c;\n } else if (h < 300) {\n r = x;\n b = c;\n } else if (h < 360) {\n r = c;\n b = x;\n }\n rgb[0] = ((r + m) * 255) | 0;\n rgb[1] = ((g + m) * 255) | 0;\n rgb[2] = ((b + m) * 255) | 0;\n return rgb;\n};\n\nCVUtils._computeDivisors = function(n) {\n var largeDivisors = [],\n divisors = [],\n i;\n\n for (i = 1; i < Math.sqrt(n) + 1; i++) {\n if (n % i === 0) {\n divisors.push(i);\n if (i !== n/i) {\n largeDivisors.unshift(Math.floor(n/i));\n }\n }\n }\n return divisors.concat(largeDivisors);\n};\n\nCVUtils._computeIntersection = function(arr1, arr2) {\n var i = 0,\n j = 0,\n result = [];\n\n while (i < arr1.length && j < arr2.length) {\n if (arr1[i] === arr2[j]) {\n result.push(arr1[i]);\n i++;\n j++;\n } else if (arr1[i] > arr2[j]) {\n j++;\n } else {\n i++;\n }\n }\n return result;\n};\n\nCVUtils.calculatePatchSize = function(patchSize, imgSize) {\n var divisorsX = this._computeDivisors(imgSize.x),\n divisorsY = this._computeDivisors(imgSize.y),\n wideSide = Math.max(imgSize.x, imgSize.y),\n common = this._computeIntersection(divisorsX, divisorsY),\n nrOfPatchesList = [8, 10, 15, 20, 32, 60, 80],\n nrOfPatchesMap = {\n \"x-small\": 5,\n \"small\": 4,\n \"medium\": 3,\n \"large\": 2,\n \"x-large\": 1\n },\n nrOfPatchesIdx = nrOfPatchesMap[patchSize] || nrOfPatchesMap.medium,\n nrOfPatches = nrOfPatchesList[nrOfPatchesIdx],\n desiredPatchSize = Math.floor(wideSide/nrOfPatches),\n optimalPatchSize;\n\n function findPatchSizeForDivisors(divisors) {\n var i = 0,\n found = divisors[Math.floor(divisors.length/2)];\n\n while(i < (divisors.length - 1) && divisors[i] < desiredPatchSize) {\n i++;\n }\n if (i > 0) {\n if (Math.abs(divisors[i] - desiredPatchSize) > Math.abs(divisors[i-1] - desiredPatchSize)) {\n found = divisors[i-1];\n } else {\n found = divisors[i];\n }\n }\n if (desiredPatchSize / found < nrOfPatchesList[nrOfPatchesIdx+1] / nrOfPatchesList[nrOfPatchesIdx] &&\n desiredPatchSize / found > nrOfPatchesList[nrOfPatchesIdx-1]/nrOfPatchesList[nrOfPatchesIdx] ) {\n return {x: found, y: found};\n }\n return null;\n }\n\n optimalPatchSize = findPatchSizeForDivisors(common);\n if (!optimalPatchSize) {\n optimalPatchSize = findPatchSizeForDivisors(this._computeDivisors(wideSide));\n if (!optimalPatchSize) {\n optimalPatchSize = findPatchSizeForDivisors((this._computeDivisors(desiredPatchSize * nrOfPatches)));\n }\n }\n return optimalPatchSize;\n};\n\nCVUtils._parseCSSDimensionValues = function(value) {\n var dimension = {\n value: parseFloat(value),\n unit: value.indexOf(\"%\") === value.length-1 ? \"%\" : \"%\"\n };\n\n return dimension;\n};\n\nCVUtils._dimensionsConverters = {\n top: function(dimension, context) {\n if (dimension.unit === \"%\") {\n return Math.floor(context.height * (dimension.value / 100));\n }\n },\n right: function(dimension, context) {\n if (dimension.unit === \"%\") {\n return Math.floor(context.width - (context.width * (dimension.value / 100)));\n }\n },\n bottom: function(dimension, context) {\n if (dimension.unit === \"%\") {\n return Math.floor(context.height - (context.height * (dimension.value / 100)));\n }\n },\n left: function(dimension, context) {\n if (dimension.unit === \"%\") {\n return Math.floor(context.width * (dimension.value / 100));\n }\n }\n};\n\nCVUtils.computeImageArea = function(inputWidth, inputHeight, area) {\n var context = {width: inputWidth, height: inputHeight};\n\n var parsedArea = Object.keys(area).reduce(function(result, key) {\n var value = area[key],\n parsed = CVUtils._parseCSSDimensionValues(value),\n calculated = CVUtils._dimensionsConverters[key](parsed, context);\n\n result[key] = calculated;\n return result;\n }, {});\n\n return {\n sx: parsedArea.left,\n sy: parsedArea.top,\n sw: parsedArea.right - parsedArea.left,\n sh: parsedArea.bottom - parsedArea.top\n };\n};\n\nexport default CVUtils;\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/cv_utils.js\n **/","import {vec2} from 'gl-matrix';\n /**\n * Creates a cluster for grouping similar orientations of datapoints\n */\nexport default {\n create: function(point, threshold) {\n var points = [],\n center = {\n rad: 0,\n vec: vec2.clone([0, 0])\n },\n pointMap = {};\n\n function init() {\n add(point);\n updateCenter();\n }\n\n function add(point) {\n pointMap[point.id] = point;\n points.push(point);\n }\n\n function updateCenter() {\n var i, sum = 0;\n for ( i = 0; i < points.length; i++) {\n sum += points[i].rad;\n }\n center.rad = sum / points.length;\n center.vec = vec2.clone([Math.cos(center.rad), Math.sin(center.rad)]);\n }\n\n init();\n\n return {\n add: function(point) {\n if (!pointMap[point.id]) {\n add(point);\n updateCenter();\n }\n },\n fits: function(point) {\n // check cosine similarity to center-angle\n var similarity = Math.abs(vec2.dot(point.point.vec, center.vec));\n if (similarity > threshold) {\n return true;\n }\n return false;\n },\n getPoints: function() {\n return points;\n },\n getCenter: function() {\n return center;\n }\n };\n },\n createPoint: function(point, id, property) {\n return {\n rad: point[property],\n point: point,\n id: id\n };\n }\n};\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/cluster.js\n **/","/**\n * @fileoverview gl-matrix - High performance matrix and vector operations\n * @author Brandon Jones\n * @author Colin MacKenzie IV\n * @version 2.3.0\n */\n\n/* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV.\n\nPermission is hereby granted, free of charge, to any person obtaining a copy\nof this software and associated documentation files (the \"Software\"), to deal\nin the Software without restriction, including without limitation the rights\nto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\ncopies of the Software, and to permit persons to whom the Software is\nfurnished to do so, subject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in\nall copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\nFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\nAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\nLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\nOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\nTHE SOFTWARE. */\n// END HEADER\n\nexports.glMatrix = require(\"./gl-matrix/common.js\");\nexports.mat2 = require(\"./gl-matrix/mat2.js\");\nexports.mat2d = require(\"./gl-matrix/mat2d.js\");\nexports.mat3 = require(\"./gl-matrix/mat3.js\");\nexports.mat4 = require(\"./gl-matrix/mat4.js\");\nexports.quat = require(\"./gl-matrix/quat.js\");\nexports.vec2 = require(\"./gl-matrix/vec2.js\");\nexports.vec3 = require(\"./gl-matrix/vec3.js\");\nexports.vec4 = require(\"./gl-matrix/vec4.js\");\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/gl-matrix/src/gl-matrix.js\n ** module id = 9\n ** module chunks = 0\n **/","/* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV.\n\nPermission is hereby granted, free of charge, to any person obtaining a copy\nof this software and associated documentation files (the \"Software\"), to deal\nin the Software without restriction, including without limitation the rights\nto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\ncopies of the Software, and to permit persons to whom the Software is\nfurnished to do so, subject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in\nall copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\nFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\nAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\nLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\nOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\nTHE SOFTWARE. */\n\n/**\n * @class Common utilities\n * @name glMatrix\n */\nvar glMatrix = {};\n\n// Constants\nglMatrix.EPSILON = 0.000001;\nglMatrix.ARRAY_TYPE = (typeof Float32Array !== 'undefined') ? Float32Array : Array;\nglMatrix.RANDOM = Math.random;\n\n/**\n * Sets the type of array used when creating new vectors and matrices\n *\n * @param {Type} type Array type, such as Float32Array or Array\n */\nglMatrix.setMatrixArrayType = function(type) {\n GLMAT_ARRAY_TYPE = type;\n}\n\nvar degree = Math.PI / 180;\n\n/**\n* Convert Degree To Radian\n*\n* @param {Number} Angle in Degrees\n*/\nglMatrix.toRadian = function(a){\n return a * degree;\n}\n\nmodule.exports = glMatrix;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/gl-matrix/src/gl-matrix/common.js\n ** module id = 10\n ** module chunks = 0\n **/","/* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV.\n\nPermission is hereby granted, free of charge, to any person obtaining a copy\nof this software and associated documentation files (the \"Software\"), to deal\nin the Software without restriction, including without limitation the rights\nto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\ncopies of the Software, and to permit persons to whom the Software is\nfurnished to do so, subject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in\nall copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\nFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\nAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\nLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\nOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\nTHE SOFTWARE. */\n\nvar glMatrix = require(\"./common.js\");\n\n/**\n * @class 2x2 Matrix\n * @name mat2\n */\nvar mat2 = {};\n\n/**\n * Creates a new identity mat2\n *\n * @returns {mat2} a new 2x2 matrix\n */\nmat2.create = function() {\n var out = new glMatrix.ARRAY_TYPE(4);\n out[0] = 1;\n out[1] = 0;\n out[2] = 0;\n out[3] = 1;\n return out;\n};\n\n/**\n * Creates a new mat2 initialized with values from an existing matrix\n *\n * @param {mat2} a matrix to clone\n * @returns {mat2} a new 2x2 matrix\n */\nmat2.clone = function(a) {\n var out = new glMatrix.ARRAY_TYPE(4);\n out[0] = a[0];\n out[1] = a[1];\n out[2] = a[2];\n out[3] = a[3];\n return out;\n};\n\n/**\n * Copy the values from one mat2 to another\n *\n * @param {mat2} out the receiving matrix\n * @param {mat2} a the source matrix\n * @returns {mat2} out\n */\nmat2.copy = function(out, a) {\n out[0] = a[0];\n out[1] = a[1];\n out[2] = a[2];\n out[3] = a[3];\n return out;\n};\n\n/**\n * Set a mat2 to the identity matrix\n *\n * @param {mat2} out the receiving matrix\n * @returns {mat2} out\n */\nmat2.identity = function(out) {\n out[0] = 1;\n out[1] = 0;\n out[2] = 0;\n out[3] = 1;\n return out;\n};\n\n/**\n * Transpose the values of a mat2\n *\n * @param {mat2} out the receiving matrix\n * @param {mat2} a the source matrix\n * @returns {mat2} out\n */\nmat2.transpose = function(out, a) {\n // If we are transposing ourselves we can skip a few steps but have to cache some values\n if (out === a) {\n var a1 = a[1];\n out[1] = a[2];\n out[2] = a1;\n } else {\n out[0] = a[0];\n out[1] = a[2];\n out[2] = a[1];\n out[3] = a[3];\n }\n \n return out;\n};\n\n/**\n * Inverts a mat2\n *\n * @param {mat2} out the receiving matrix\n * @param {mat2} a the source matrix\n * @returns {mat2} out\n */\nmat2.invert = function(out, a) {\n var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3],\n\n // Calculate the determinant\n det = a0 * a3 - a2 * a1;\n\n if (!det) {\n return null;\n }\n det = 1.0 / det;\n \n out[0] = a3 * det;\n out[1] = -a1 * det;\n out[2] = -a2 * det;\n out[3] = a0 * det;\n\n return out;\n};\n\n/**\n * Calculates the adjugate of a mat2\n *\n * @param {mat2} out the receiving matrix\n * @param {mat2} a the source matrix\n * @returns {mat2} out\n */\nmat2.adjoint = function(out, a) {\n // Caching this value is nessecary if out == a\n var a0 = a[0];\n out[0] = a[3];\n out[1] = -a[1];\n out[2] = -a[2];\n out[3] = a0;\n\n return out;\n};\n\n/**\n * Calculates the determinant of a mat2\n *\n * @param {mat2} a the source matrix\n * @returns {Number} determinant of a\n */\nmat2.determinant = function (a) {\n return a[0] * a[3] - a[2] * a[1];\n};\n\n/**\n * Multiplies two mat2's\n *\n * @param {mat2} out the receiving matrix\n * @param {mat2} a the first operand\n * @param {mat2} b the second operand\n * @returns {mat2} out\n */\nmat2.multiply = function (out, a, b) {\n var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3];\n var b0 = b[0], b1 = b[1], b2 = b[2], b3 = b[3];\n out[0] = a0 * b0 + a2 * b1;\n out[1] = a1 * b0 + a3 * b1;\n out[2] = a0 * b2 + a2 * b3;\n out[3] = a1 * b2 + a3 * b3;\n return out;\n};\n\n/**\n * Alias for {@link mat2.multiply}\n * @function\n */\nmat2.mul = mat2.multiply;\n\n/**\n * Rotates a mat2 by the given angle\n *\n * @param {mat2} out the receiving matrix\n * @param {mat2} a the matrix to rotate\n * @param {Number} rad the angle to rotate the matrix by\n * @returns {mat2} out\n */\nmat2.rotate = function (out, a, rad) {\n var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3],\n s = Math.sin(rad),\n c = Math.cos(rad);\n out[0] = a0 * c + a2 * s;\n out[1] = a1 * c + a3 * s;\n out[2] = a0 * -s + a2 * c;\n out[3] = a1 * -s + a3 * c;\n return out;\n};\n\n/**\n * Scales the mat2 by the dimensions in the given vec2\n *\n * @param {mat2} out the receiving matrix\n * @param {mat2} a the matrix to rotate\n * @param {vec2} v the vec2 to scale the matrix by\n * @returns {mat2} out\n **/\nmat2.scale = function(out, a, v) {\n var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3],\n v0 = v[0], v1 = v[1];\n out[0] = a0 * v0;\n out[1] = a1 * v0;\n out[2] = a2 * v1;\n out[3] = a3 * v1;\n return out;\n};\n\n/**\n * Creates a matrix from a given angle\n * This is equivalent to (but much faster than):\n *\n * mat2.identity(dest);\n * mat2.rotate(dest, dest, rad);\n *\n * @param {mat2} out mat2 receiving operation result\n * @param {Number} rad the angle to rotate the matrix by\n * @returns {mat2} out\n */\nmat2.fromRotation = function(out, rad) {\n var s = Math.sin(rad),\n c = Math.cos(rad);\n out[0] = c;\n out[1] = s;\n out[2] = -s;\n out[3] = c;\n return out;\n}\n\n/**\n * Creates a matrix from a vector scaling\n * This is equivalent to (but much faster than):\n *\n * mat2.identity(dest);\n * mat2.scale(dest, dest, vec);\n *\n * @param {mat2} out mat2 receiving operation result\n * @param {vec2} v Scaling vector\n * @returns {mat2} out\n */\nmat2.fromScaling = function(out, v) {\n out[0] = v[0];\n out[1] = 0;\n out[2] = 0;\n out[3] = v[1];\n return out;\n}\n\n/**\n * Returns a string representation of a mat2\n *\n * @param {mat2} mat matrix to represent as a string\n * @returns {String} string representation of the matrix\n */\nmat2.str = function (a) {\n return 'mat2(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' + a[3] + ')';\n};\n\n/**\n * Returns Frobenius norm of a mat2\n *\n * @param {mat2} a the matrix to calculate Frobenius norm of\n * @returns {Number} Frobenius norm\n */\nmat2.frob = function (a) {\n return(Math.sqrt(Math.pow(a[0], 2) + Math.pow(a[1], 2) + Math.pow(a[2], 2) + Math.pow(a[3], 2)))\n};\n\n/**\n * Returns L, D and U matrices (Lower triangular, Diagonal and Upper triangular) by factorizing the input matrix\n * @param {mat2} L the lower triangular matrix \n * @param {mat2} D the diagonal matrix \n * @param {mat2} U the upper triangular matrix \n * @param {mat2} a the input matrix to factorize\n */\n\nmat2.LDU = function (L, D, U, a) { \n L[2] = a[2]/a[0]; \n U[0] = a[0]; \n U[1] = a[1]; \n U[3] = a[3] - L[2] * U[1]; \n return [L, D, U]; \n}; \n\n\nmodule.exports = mat2;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/gl-matrix/src/gl-matrix/mat2.js\n ** module id = 11\n ** module chunks = 0\n **/","/* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV.\n\nPermission is hereby granted, free of charge, to any person obtaining a copy\nof this software and associated documentation files (the \"Software\"), to deal\nin the Software without restriction, including without limitation the rights\nto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\ncopies of the Software, and to permit persons to whom the Software is\nfurnished to do so, subject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in\nall copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\nFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\nAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\nLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\nOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\nTHE SOFTWARE. */\n\nvar glMatrix = require(\"./common.js\");\n\n/**\n * @class 2x3 Matrix\n * @name mat2d\n * \n * @description \n * A mat2d contains six elements defined as:\n * 
\n * [a, c, tx,\n *  b, d, ty]\n *
\n * This is a short form for the 3x3 matrix:\n * 
\n * [a, c, tx,\n *  b, d, ty,\n *  0, 0, 1]\n *
\n * The last row is ignored so the array is shorter and operations are faster.\n */\nvar mat2d = {};\n\n/**\n * Creates a new identity mat2d\n *\n * @returns {mat2d} a new 2x3 matrix\n */\nmat2d.create = function() {\n var out = new glMatrix.ARRAY_TYPE(6);\n out[0] = 1;\n out[1] = 0;\n out[2] = 0;\n out[3] = 1;\n out[4] = 0;\n out[5] = 0;\n return out;\n};\n\n/**\n * Creates a new mat2d initialized with values from an existing matrix\n *\n * @param {mat2d} a matrix to clone\n * @returns {mat2d} a new 2x3 matrix\n */\nmat2d.clone = function(a) {\n var out = new glMatrix.ARRAY_TYPE(6);\n out[0] = a[0];\n out[1] = a[1];\n out[2] = a[2];\n out[3] = a[3];\n out[4] = a[4];\n out[5] = a[5];\n return out;\n};\n\n/**\n * Copy the values from one mat2d to another\n *\n * @param {mat2d} out the receiving matrix\n * @param {mat2d} a the source matrix\n * @returns {mat2d} out\n */\nmat2d.copy = function(out, a) {\n out[0] = a[0];\n out[1] = a[1];\n out[2] = a[2];\n out[3] = a[3];\n out[4] = a[4];\n out[5] = a[5];\n return out;\n};\n\n/**\n * Set a mat2d to the identity matrix\n *\n * @param {mat2d} out the receiving matrix\n * @returns {mat2d} out\n */\nmat2d.identity = function(out) {\n out[0] = 1;\n out[1] = 0;\n out[2] = 0;\n out[3] = 1;\n out[4] = 0;\n out[5] = 0;\n return out;\n};\n\n/**\n * Inverts a mat2d\n *\n * @param {mat2d} out the receiving matrix\n * @param {mat2d} a the source matrix\n * @returns {mat2d} out\n */\nmat2d.invert = function(out, a) {\n var aa = a[0], ab = a[1], ac = a[2], ad = a[3],\n atx = a[4], aty = a[5];\n\n var det = aa * ad - ab * ac;\n if(!det){\n return null;\n }\n det = 1.0 / det;\n\n out[0] = ad * det;\n out[1] = -ab * det;\n out[2] = -ac * det;\n out[3] = aa * det;\n out[4] = (ac * aty - ad * atx) * det;\n out[5] = (ab * atx - aa * aty) * det;\n return out;\n};\n\n/**\n * Calculates the determinant of a mat2d\n *\n * @param {mat2d} a the source matrix\n * @returns {Number} determinant of a\n */\nmat2d.determinant = function (a) {\n return a[0] * a[3] - a[1] * a[2];\n};\n\n/**\n * Multiplies two mat2d's\n *\n * @param {mat2d} out the receiving matrix\n * @param {mat2d} a the first operand\n * @param {mat2d} b the second operand\n * @returns {mat2d} out\n */\nmat2d.multiply = function (out, a, b) {\n var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3], a4 = a[4], a5 = a[5],\n b0 = b[0], b1 = b[1], b2 = b[2], b3 = b[3], b4 = b[4], b5 = b[5];\n out[0] = a0 * b0 + a2 * b1;\n out[1] = a1 * b0 + a3 * b1;\n out[2] = a0 * b2 + a2 * b3;\n out[3] = a1 * b2 + a3 * b3;\n out[4] = a0 * b4 + a2 * b5 + a4;\n out[5] = a1 * b4 + a3 * b5 + a5;\n return out;\n};\n\n/**\n * Alias for {@link mat2d.multiply}\n * @function\n */\nmat2d.mul = mat2d.multiply;\n\n/**\n * Rotates a mat2d by the given angle\n *\n * @param {mat2d} out the receiving matrix\n * @param {mat2d} a the matrix to rotate\n * @param {Number} rad the angle to rotate the matrix by\n * @returns {mat2d} out\n */\nmat2d.rotate = function (out, a, rad) {\n var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3], a4 = a[4], a5 = a[5],\n s = Math.sin(rad),\n c = Math.cos(rad);\n out[0] = a0 * c + a2 * s;\n out[1] = a1 * c + a3 * s;\n out[2] = a0 * -s + a2 * c;\n out[3] = a1 * -s + a3 * c;\n out[4] = a4;\n out[5] = a5;\n return out;\n};\n\n/**\n * Scales the mat2d by the dimensions in the given vec2\n *\n * @param {mat2d} out the receiving matrix\n * @param {mat2d} a the matrix to translate\n * @param {vec2} v the vec2 to scale the matrix by\n * @returns {mat2d} out\n **/\nmat2d.scale = function(out, a, v) {\n var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3], a4 = a[4], a5 = a[5],\n v0 = v[0], v1 = v[1];\n out[0] = a0 * v0;\n out[1] = a1 * v0;\n out[2] = a2 * v1;\n out[3] = a3 * v1;\n out[4] = a4;\n out[5] = a5;\n return out;\n};\n\n/**\n * Translates the mat2d by the dimensions in the given vec2\n *\n * @param {mat2d} out the receiving matrix\n * @param {mat2d} a the matrix to translate\n * @param {vec2} v the vec2 to translate the matrix by\n * @returns {mat2d} out\n **/\nmat2d.translate = function(out, a, v) {\n var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3], a4 = a[4], a5 = a[5],\n v0 = v[0], v1 = v[1];\n out[0] = a0;\n out[1] = a1;\n out[2] = a2;\n out[3] = a3;\n out[4] = a0 * v0 + a2 * v1 + a4;\n out[5] = a1 * v0 + a3 * v1 + a5;\n return out;\n};\n\n/**\n * Creates a matrix from a given angle\n * This is equivalent to (but much faster than):\n *\n * mat2d.identity(dest);\n * mat2d.rotate(dest, dest, rad);\n *\n * @param {mat2d} out mat2d receiving operation result\n * @param {Number} rad the angle to rotate the matrix by\n * @returns {mat2d} out\n */\nmat2d.fromRotation = function(out, rad) {\n var s = Math.sin(rad), c = Math.cos(rad);\n out[0] = c;\n out[1] = s;\n out[2] = -s;\n out[3] = c;\n out[4] = 0;\n out[5] = 0;\n return out;\n}\n\n/**\n * Creates a matrix from a vector scaling\n * This is equivalent to (but much faster than):\n *\n * mat2d.identity(dest);\n * mat2d.scale(dest, dest, vec);\n *\n * @param {mat2d} out mat2d receiving operation result\n * @param {vec2} v Scaling vector\n * @returns {mat2d} out\n */\nmat2d.fromScaling = function(out, v) {\n out[0] = v[0];\n out[1] = 0;\n out[2] = 0;\n out[3] = v[1];\n out[4] = 0;\n out[5] = 0;\n return out;\n}\n\n/**\n * Creates a matrix from a vector translation\n * This is equivalent to (but much faster than):\n *\n * mat2d.identity(dest);\n * mat2d.translate(dest, dest, vec);\n *\n * @param {mat2d} out mat2d receiving operation result\n * @param {vec2} v Translation vector\n * @returns {mat2d} out\n */\nmat2d.fromTranslation = function(out, v) {\n out[0] = 1;\n out[1] = 0;\n out[2] = 0;\n out[3] = 1;\n out[4] = v[0];\n out[5] = v[1];\n return out;\n}\n\n/**\n * Returns a string representation of a mat2d\n *\n * @param {mat2d} a matrix to represent as a string\n * @returns {String} string representation of the matrix\n */\nmat2d.str = function (a) {\n return 'mat2d(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' + \n a[3] + ', ' + a[4] + ', ' + a[5] + ')';\n};\n\n/**\n * Returns Frobenius norm of a mat2d\n *\n * @param {mat2d} a the matrix to calculate Frobenius norm of\n * @returns {Number} Frobenius norm\n */\nmat2d.frob = function (a) { \n return(Math.sqrt(Math.pow(a[0], 2) + Math.pow(a[1], 2) + Math.pow(a[2], 2) + Math.pow(a[3], 2) + Math.pow(a[4], 2) + Math.pow(a[5], 2) + 1))\n}; \n\nmodule.exports = mat2d;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/gl-matrix/src/gl-matrix/mat2d.js\n ** module id = 12\n ** module chunks = 0\n **/","/* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV.\n\nPermission is hereby granted, free of charge, to any person obtaining a copy\nof this software and associated documentation files (the \"Software\"), to deal\nin the Software without restriction, including without limitation the rights\nto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\ncopies of the Software, and to permit persons to whom the Software is\nfurnished to do so, subject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in\nall copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\nFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\nAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\nLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\nOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\nTHE SOFTWARE. */\n\nvar glMatrix = require(\"./common.js\");\n\n/**\n * @class 3x3 Matrix\n * @name mat3\n */\nvar mat3 = {};\n\n/**\n * Creates a new identity mat3\n *\n * @returns {mat3} a new 3x3 matrix\n */\nmat3.create = function() {\n var out = new glMatrix.ARRAY_TYPE(9);\n out[0] = 1;\n out[1] = 0;\n out[2] = 0;\n out[3] = 0;\n out[4] = 1;\n out[5] = 0;\n out[6] = 0;\n out[7] = 0;\n out[8] = 1;\n return out;\n};\n\n/**\n * Copies the upper-left 3x3 values into the given mat3.\n *\n * @param {mat3} out the receiving 3x3 matrix\n * @param {mat4} a the source 4x4 matrix\n * @returns {mat3} out\n */\nmat3.fromMat4 = function(out, a) {\n out[0] = a[0];\n out[1] = a[1];\n out[2] = a[2];\n out[3] = a[4];\n out[4] = a[5];\n out[5] = a[6];\n out[6] = a[8];\n out[7] = a[9];\n out[8] = a[10];\n return out;\n};\n\n/**\n * Creates a new mat3 initialized with values from an existing matrix\n *\n * @param {mat3} a matrix to clone\n * @returns {mat3} a new 3x3 matrix\n */\nmat3.clone = function(a) {\n var out = new glMatrix.ARRAY_TYPE(9);\n out[0] = a[0];\n out[1] = a[1];\n out[2] = a[2];\n out[3] = a[3];\n out[4] = a[4];\n out[5] = a[5];\n out[6] = a[6];\n out[7] = a[7];\n out[8] = a[8];\n return out;\n};\n\n/**\n * Copy the values from one mat3 to another\n *\n * @param {mat3} out the receiving matrix\n * @param {mat3} a the source matrix\n * @returns {mat3} out\n */\nmat3.copy = function(out, a) {\n out[0] = a[0];\n out[1] = a[1];\n out[2] = a[2];\n out[3] = a[3];\n out[4] = a[4];\n out[5] = a[5];\n out[6] = a[6];\n out[7] = a[7];\n out[8] = a[8];\n return out;\n};\n\n/**\n * Set a mat3 to the identity matrix\n *\n * @param {mat3} out the receiving matrix\n * @returns {mat3} out\n */\nmat3.identity = function(out) {\n out[0] = 1;\n out[1] = 0;\n out[2] = 0;\n out[3] = 0;\n out[4] = 1;\n out[5] = 0;\n out[6] = 0;\n out[7] = 0;\n out[8] = 1;\n return out;\n};\n\n/**\n * Transpose the values of a mat3\n *\n * @param {mat3} out the receiving matrix\n * @param {mat3} a the source matrix\n * @returns {mat3} out\n */\nmat3.transpose = function(out, a) {\n // If we are transposing ourselves we can skip a few steps but have to cache some values\n if (out === a) {\n var a01 = a[1], a02 = a[2], a12 = a[5];\n out[1] = a[3];\n out[2] = a[6];\n out[3] = a01;\n out[5] = a[7];\n out[6] = a02;\n out[7] = a12;\n } else {\n out[0] = a[0];\n out[1] = a[3];\n out[2] = a[6];\n out[3] = a[1];\n out[4] = a[4];\n out[5] = a[7];\n out[6] = a[2];\n out[7] = a[5];\n out[8] = a[8];\n }\n \n return out;\n};\n\n/**\n * Inverts a mat3\n *\n * @param {mat3} out the receiving matrix\n * @param {mat3} a the source matrix\n * @returns {mat3} out\n */\nmat3.invert = function(out, a) {\n var a00 = a[0], a01 = a[1], a02 = a[2],\n a10 = a[3], a11 = a[4], a12 = a[5],\n a20 = a[6], a21 = a[7], a22 = a[8],\n\n b01 = a22 * a11 - a12 * a21,\n b11 = -a22 * a10 + a12 * a20,\n b21 = a21 * a10 - a11 * a20,\n\n // Calculate the determinant\n det = a00 * b01 + a01 * b11 + a02 * b21;\n\n if (!det) { \n return null; \n }\n det = 1.0 / det;\n\n out[0] = b01 * det;\n out[1] = (-a22 * a01 + a02 * a21) * det;\n out[2] = (a12 * a01 - a02 * a11) * det;\n out[3] = b11 * det;\n out[4] = (a22 * a00 - a02 * a20) * det;\n out[5] = (-a12 * a00 + a02 * a10) * det;\n out[6] = b21 * det;\n out[7] = (-a21 * a00 + a01 * a20) * det;\n out[8] = (a11 * a00 - a01 * a10) * det;\n return out;\n};\n\n/**\n * Calculates the adjugate of a mat3\n *\n * @param {mat3} out the receiving matrix\n * @param {mat3} a the source matrix\n * @returns {mat3} out\n */\nmat3.adjoint = function(out, a) {\n var a00 = a[0], a01 = a[1], a02 = a[2],\n a10 = a[3], a11 = a[4], a12 = a[5],\n a20 = a[6], a21 = a[7], a22 = a[8];\n\n out[0] = (a11 * a22 - a12 * a21);\n out[1] = (a02 * a21 - a01 * a22);\n out[2] = (a01 * a12 - a02 * a11);\n out[3] = (a12 * a20 - a10 * a22);\n out[4] = (a00 * a22 - a02 * a20);\n out[5] = (a02 * a10 - a00 * a12);\n out[6] = (a10 * a21 - a11 * a20);\n out[7] = (a01 * a20 - a00 * a21);\n out[8] = (a00 * a11 - a01 * a10);\n return out;\n};\n\n/**\n * Calculates the determinant of a mat3\n *\n * @param {mat3} a the source matrix\n * @returns {Number} determinant of a\n */\nmat3.determinant = function (a) {\n var a00 = a[0], a01 = a[1], a02 = a[2],\n a10 = a[3], a11 = a[4], a12 = a[5],\n a20 = a[6], a21 = a[7], a22 = a[8];\n\n return a00 * (a22 * a11 - a12 * a21) + a01 * (-a22 * a10 + a12 * a20) + a02 * (a21 * a10 - a11 * a20);\n};\n\n/**\n * Multiplies two mat3's\n *\n * @param {mat3} out the receiving matrix\n * @param {mat3} a the first operand\n * @param {mat3} b the second operand\n * @returns {mat3} out\n */\nmat3.multiply = function (out, a, b) {\n var a00 = a[0], a01 = a[1], a02 = a[2],\n a10 = a[3], a11 = a[4], a12 = a[5],\n a20 = a[6], a21 = a[7], a22 = a[8],\n\n b00 = b[0], b01 = b[1], b02 = b[2],\n b10 = b[3], b11 = b[4], b12 = b[5],\n b20 = b[6], b21 = b[7], b22 = b[8];\n\n out[0] = b00 * a00 + b01 * a10 + b02 * a20;\n out[1] = b00 * a01 + b01 * a11 + b02 * a21;\n out[2] = b00 * a02 + b01 * a12 + b02 * a22;\n\n out[3] = b10 * a00 + b11 * a10 + b12 * a20;\n out[4] = b10 * a01 + b11 * a11 + b12 * a21;\n out[5] = b10 * a02 + b11 * a12 + b12 * a22;\n\n out[6] = b20 * a00 + b21 * a10 + b22 * a20;\n out[7] = b20 * a01 + b21 * a11 + b22 * a21;\n out[8] = b20 * a02 + b21 * a12 + b22 * a22;\n return out;\n};\n\n/**\n * Alias for {@link mat3.multiply}\n * @function\n */\nmat3.mul = mat3.multiply;\n\n/**\n * Translate a mat3 by the given vector\n *\n * @param {mat3} out the receiving matrix\n * @param {mat3} a the matrix to translate\n * @param {vec2} v vector to translate by\n * @returns {mat3} out\n */\nmat3.translate = function(out, a, v) {\n var a00 = a[0], a01 = a[1], a02 = a[2],\n a10 = a[3], a11 = a[4], a12 = a[5],\n a20 = a[6], a21 = a[7], a22 = a[8],\n x = v[0], y = v[1];\n\n out[0] = a00;\n out[1] = a01;\n out[2] = a02;\n\n out[3] = a10;\n out[4] = a11;\n out[5] = a12;\n\n out[6] = x * a00 + y * a10 + a20;\n out[7] = x * a01 + y * a11 + a21;\n out[8] = x * a02 + y * a12 + a22;\n return out;\n};\n\n/**\n * Rotates a mat3 by the given angle\n *\n * @param {mat3} out the receiving matrix\n * @param {mat3} a the matrix to rotate\n * @param {Number} rad the angle to rotate the matrix by\n * @returns {mat3} out\n */\nmat3.rotate = function (out, a, rad) {\n var a00 = a[0], a01 = a[1], a02 = a[2],\n a10 = a[3], a11 = a[4], a12 = a[5],\n a20 = a[6], a21 = a[7], a22 = a[8],\n\n s = Math.sin(rad),\n c = Math.cos(rad);\n\n out[0] = c * a00 + s * a10;\n out[1] = c * a01 + s * a11;\n out[2] = c * a02 + s * a12;\n\n out[3] = c * a10 - s * a00;\n out[4] = c * a11 - s * a01;\n out[5] = c * a12 - s * a02;\n\n out[6] = a20;\n out[7] = a21;\n out[8] = a22;\n return out;\n};\n\n/**\n * Scales the mat3 by the dimensions in the given vec2\n *\n * @param {mat3} out the receiving matrix\n * @param {mat3} a the matrix to rotate\n * @param {vec2} v the vec2 to scale the matrix by\n * @returns {mat3} out\n **/\nmat3.scale = function(out, a, v) {\n var x = v[0], y = v[1];\n\n out[0] = x * a[0];\n out[1] = x * a[1];\n out[2] = x * a[2];\n\n out[3] = y * a[3];\n out[4] = y * a[4];\n out[5] = y * a[5];\n\n out[6] = a[6];\n out[7] = a[7];\n out[8] = a[8];\n return out;\n};\n\n/**\n * Creates a matrix from a vector translation\n * This is equivalent to (but much faster than):\n *\n * mat3.identity(dest);\n * mat3.translate(dest, dest, vec);\n *\n * @param {mat3} out mat3 receiving operation result\n * @param {vec2} v Translation vector\n * @returns {mat3} out\n */\nmat3.fromTranslation = function(out, v) {\n out[0] = 1;\n out[1] = 0;\n out[2] = 0;\n out[3] = 0;\n out[4] = 1;\n out[5] = 0;\n out[6] = v[0];\n out[7] = v[1];\n out[8] = 1;\n return out;\n}\n\n/**\n * Creates a matrix from a given angle\n * This is equivalent to (but much faster than):\n *\n * mat3.identity(dest);\n * mat3.rotate(dest, dest, rad);\n *\n * @param {mat3} out mat3 receiving operation result\n * @param {Number} rad the angle to rotate the matrix by\n * @returns {mat3} out\n */\nmat3.fromRotation = function(out, rad) {\n var s = Math.sin(rad), c = Math.cos(rad);\n\n out[0] = c;\n out[1] = s;\n out[2] = 0;\n\n out[3] = -s;\n out[4] = c;\n out[5] = 0;\n\n out[6] = 0;\n out[7] = 0;\n out[8] = 1;\n return out;\n}\n\n/**\n * Creates a matrix from a vector scaling\n * This is equivalent to (but much faster than):\n *\n * mat3.identity(dest);\n * mat3.scale(dest, dest, vec);\n *\n * @param {mat3} out mat3 receiving operation result\n * @param {vec2} v Scaling vector\n * @returns {mat3} out\n */\nmat3.fromScaling = function(out, v) {\n out[0] = v[0];\n out[1] = 0;\n out[2] = 0;\n\n out[3] = 0;\n out[4] = v[1];\n out[5] = 0;\n\n out[6] = 0;\n out[7] = 0;\n out[8] = 1;\n return out;\n}\n\n/**\n * Copies the values from a mat2d into a mat3\n *\n * @param {mat3} out the receiving matrix\n * @param {mat2d} a the matrix to copy\n * @returns {mat3} out\n **/\nmat3.fromMat2d = function(out, a) {\n out[0] = a[0];\n out[1] = a[1];\n out[2] = 0;\n\n out[3] = a[2];\n out[4] = a[3];\n out[5] = 0;\n\n out[6] = a[4];\n out[7] = a[5];\n out[8] = 1;\n return out;\n};\n\n/**\n* Calculates a 3x3 matrix from the given quaternion\n*\n* @param {mat3} out mat3 receiving operation result\n* @param {quat} q Quaternion to create matrix from\n*\n* @returns {mat3} out\n*/\nmat3.fromQuat = function (out, q) {\n var x = q[0], y = q[1], z = q[2], w = q[3],\n x2 = x + x,\n y2 = y + y,\n z2 = z + z,\n\n xx = x * x2,\n yx = y * x2,\n yy = y * y2,\n zx = z * x2,\n zy = z * y2,\n zz = z * z2,\n wx = w * x2,\n wy = w * y2,\n wz = w * z2;\n\n out[0] = 1 - yy - zz;\n out[3] = yx - wz;\n out[6] = zx + wy;\n\n out[1] = yx + wz;\n out[4] = 1 - xx - zz;\n out[7] = zy - wx;\n\n out[2] = zx - wy;\n out[5] = zy + wx;\n out[8] = 1 - xx - yy;\n\n return out;\n};\n\n/**\n* Calculates a 3x3 normal matrix (transpose inverse) from the 4x4 matrix\n*\n* @param {mat3} out mat3 receiving operation result\n* @param {mat4} a Mat4 to derive the normal matrix from\n*\n* @returns {mat3} out\n*/\nmat3.normalFromMat4 = function (out, a) {\n var a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3],\n a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7],\n a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11],\n a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15],\n\n b00 = a00 * a11 - a01 * a10,\n b01 = a00 * a12 - a02 * a10,\n b02 = a00 * a13 - a03 * a10,\n b03 = a01 * a12 - a02 * a11,\n b04 = a01 * a13 - a03 * a11,\n b05 = a02 * a13 - a03 * a12,\n b06 = a20 * a31 - a21 * a30,\n b07 = a20 * a32 - a22 * a30,\n b08 = a20 * a33 - a23 * a30,\n b09 = a21 * a32 - a22 * a31,\n b10 = a21 * a33 - a23 * a31,\n b11 = a22 * a33 - a23 * a32,\n\n // Calculate the determinant\n det = b00 * b11 - b01 * b10 + b02 * b09 + b03 * b08 - b04 * b07 + b05 * b06;\n\n if (!det) { \n return null; \n }\n det = 1.0 / det;\n\n out[0] = (a11 * b11 - a12 * b10 + a13 * b09) * det;\n out[1] = (a12 * b08 - a10 * b11 - a13 * b07) * det;\n out[2] = (a10 * b10 - a11 * b08 + a13 * b06) * det;\n\n out[3] = (a02 * b10 - a01 * b11 - a03 * b09) * det;\n out[4] = (a00 * b11 - a02 * b08 + a03 * b07) * det;\n out[5] = (a01 * b08 - a00 * b10 - a03 * b06) * det;\n\n out[6] = (a31 * b05 - a32 * b04 + a33 * b03) * det;\n out[7] = (a32 * b02 - a30 * b05 - a33 * b01) * det;\n out[8] = (a30 * b04 - a31 * b02 + a33 * b00) * det;\n\n return out;\n};\n\n/**\n * Returns a string representation of a mat3\n *\n * @param {mat3} mat matrix to represent as a string\n * @returns {String} string representation of the matrix\n */\nmat3.str = function (a) {\n return 'mat3(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' + \n a[3] + ', ' + a[4] + ', ' + a[5] + ', ' + \n a[6] + ', ' + a[7] + ', ' + a[8] + ')';\n};\n\n/**\n * Returns Frobenius norm of a mat3\n *\n * @param {mat3} a the matrix to calculate Frobenius norm of\n * @returns {Number} Frobenius norm\n */\nmat3.frob = function (a) {\n return(Math.sqrt(Math.pow(a[0], 2) + Math.pow(a[1], 2) + Math.pow(a[2], 2) + Math.pow(a[3], 2) + Math.pow(a[4], 2) + Math.pow(a[5], 2) + Math.pow(a[6], 2) + Math.pow(a[7], 2) + Math.pow(a[8], 2)))\n};\n\n\nmodule.exports = mat3;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/gl-matrix/src/gl-matrix/mat3.js\n ** module id = 13\n ** module chunks = 0\n **/","/* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV.\n\nPermission is hereby granted, free of charge, to any person obtaining a copy\nof this software and associated documentation files (the \"Software\"), to deal\nin the Software without restriction, including without limitation the rights\nto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\ncopies of the Software, and to permit persons to whom the Software is\nfurnished to do so, subject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in\nall copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\nFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\nAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\nLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\nOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\nTHE SOFTWARE. */\n\nvar glMatrix = require(\"./common.js\");\n\n/**\n * @class 4x4 Matrix\n * @name mat4\n */\nvar mat4 = {};\n\n/**\n * Creates a new identity mat4\n *\n * @returns {mat4} a new 4x4 matrix\n */\nmat4.create = function() {\n var out = new glMatrix.ARRAY_TYPE(16);\n out[0] = 1;\n out[1] = 0;\n out[2] = 0;\n out[3] = 0;\n out[4] = 0;\n out[5] = 1;\n out[6] = 0;\n out[7] = 0;\n out[8] = 0;\n out[9] = 0;\n out[10] = 1;\n out[11] = 0;\n out[12] = 0;\n out[13] = 0;\n out[14] = 0;\n out[15] = 1;\n return out;\n};\n\n/**\n * Creates a new mat4 initialized with values from an existing matrix\n *\n * @param {mat4} a matrix to clone\n * @returns {mat4} a new 4x4 matrix\n */\nmat4.clone = function(a) {\n var out = new glMatrix.ARRAY_TYPE(16);\n out[0] = a[0];\n out[1] = a[1];\n out[2] = a[2];\n out[3] = a[3];\n out[4] = a[4];\n out[5] = a[5];\n out[6] = a[6];\n out[7] = a[7];\n out[8] = a[8];\n out[9] = a[9];\n out[10] = a[10];\n out[11] = a[11];\n out[12] = a[12];\n out[13] = a[13];\n out[14] = a[14];\n out[15] = a[15];\n return out;\n};\n\n/**\n * Copy the values from one mat4 to another\n *\n * @param {mat4} out the receiving matrix\n * @param {mat4} a the source matrix\n * @returns {mat4} out\n */\nmat4.copy = function(out, a) {\n out[0] = a[0];\n out[1] = a[1];\n out[2] = a[2];\n out[3] = a[3];\n out[4] = a[4];\n out[5] = a[5];\n out[6] = a[6];\n out[7] = a[7];\n out[8] = a[8];\n out[9] = a[9];\n out[10] = a[10];\n out[11] = a[11];\n out[12] = a[12];\n out[13] = a[13];\n out[14] = a[14];\n out[15] = a[15];\n return out;\n};\n\n/**\n * Set a mat4 to the identity matrix\n *\n * @param {mat4} out the receiving matrix\n * @returns {mat4} out\n */\nmat4.identity = function(out) {\n out[0] = 1;\n out[1] = 0;\n out[2] = 0;\n out[3] = 0;\n out[4] = 0;\n out[5] = 1;\n out[6] = 0;\n out[7] = 0;\n out[8] = 0;\n out[9] = 0;\n out[10] = 1;\n out[11] = 0;\n out[12] = 0;\n out[13] = 0;\n out[14] = 0;\n out[15] = 1;\n return out;\n};\n\n/**\n * Transpose the values of a mat4\n *\n * @param {mat4} out the receiving matrix\n * @param {mat4} a the source matrix\n * @returns {mat4} out\n */\nmat4.transpose = function(out, a) {\n // If we are transposing ourselves we can skip a few steps but have to cache some values\n if (out === a) {\n var a01 = a[1], a02 = a[2], a03 = a[3],\n a12 = a[6], a13 = a[7],\n a23 = a[11];\n\n out[1] = a[4];\n out[2] = a[8];\n out[3] = a[12];\n out[4] = a01;\n out[6] = a[9];\n out[7] = a[13];\n out[8] = a02;\n out[9] = a12;\n out[11] = a[14];\n out[12] = a03;\n out[13] = a13;\n out[14] = a23;\n } else {\n out[0] = a[0];\n out[1] = a[4];\n out[2] = a[8];\n out[3] = a[12];\n out[4] = a[1];\n out[5] = a[5];\n out[6] = a[9];\n out[7] = a[13];\n out[8] = a[2];\n out[9] = a[6];\n out[10] = a[10];\n out[11] = a[14];\n out[12] = a[3];\n out[13] = a[7];\n out[14] = a[11];\n out[15] = a[15];\n }\n \n return out;\n};\n\n/**\n * Inverts a mat4\n *\n * @param {mat4} out the receiving matrix\n * @param {mat4} a the source matrix\n * @returns {mat4} out\n */\nmat4.invert = function(out, a) {\n var a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3],\n a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7],\n a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11],\n a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15],\n\n b00 = a00 * a11 - a01 * a10,\n b01 = a00 * a12 - a02 * a10,\n b02 = a00 * a13 - a03 * a10,\n b03 = a01 * a12 - a02 * a11,\n b04 = a01 * a13 - a03 * a11,\n b05 = a02 * a13 - a03 * a12,\n b06 = a20 * a31 - a21 * a30,\n b07 = a20 * a32 - a22 * a30,\n b08 = a20 * a33 - a23 * a30,\n b09 = a21 * a32 - a22 * a31,\n b10 = a21 * a33 - a23 * a31,\n b11 = a22 * a33 - a23 * a32,\n\n // Calculate the determinant\n det = b00 * b11 - b01 * b10 + b02 * b09 + b03 * b08 - b04 * b07 + b05 * b06;\n\n if (!det) { \n return null; \n }\n det = 1.0 / det;\n\n out[0] = (a11 * b11 - a12 * b10 + a13 * b09) * det;\n out[1] = (a02 * b10 - a01 * b11 - a03 * b09) * det;\n out[2] = (a31 * b05 - a32 * b04 + a33 * b03) * det;\n out[3] = (a22 * b04 - a21 * b05 - a23 * b03) * det;\n out[4] = (a12 * b08 - a10 * b11 - a13 * b07) * det;\n out[5] = (a00 * b11 - a02 * b08 + a03 * b07) * det;\n out[6] = (a32 * b02 - a30 * b05 - a33 * b01) * det;\n out[7] = (a20 * b05 - a22 * b02 + a23 * b01) * det;\n out[8] = (a10 * b10 - a11 * b08 + a13 * b06) * det;\n out[9] = (a01 * b08 - a00 * b10 - a03 * b06) * det;\n out[10] = (a30 * b04 - a31 * b02 + a33 * b00) * det;\n out[11] = (a21 * b02 - a20 * b04 - a23 * b00) * det;\n out[12] = (a11 * b07 - a10 * b09 - a12 * b06) * det;\n out[13] = (a00 * b09 - a01 * b07 + a02 * b06) * det;\n out[14] = (a31 * b01 - a30 * b03 - a32 * b00) * det;\n out[15] = (a20 * b03 - a21 * b01 + a22 * b00) * det;\n\n return out;\n};\n\n/**\n * Calculates the adjugate of a mat4\n *\n * @param {mat4} out the receiving matrix\n * @param {mat4} a the source matrix\n * @returns {mat4} out\n */\nmat4.adjoint = function(out, a) {\n var a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3],\n a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7],\n a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11],\n a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15];\n\n out[0] = (a11 * (a22 * a33 - a23 * a32) - a21 * (a12 * a33 - a13 * a32) + a31 * (a12 * a23 - a13 * a22));\n out[1] = -(a01 * (a22 * a33 - a23 * a32) - a21 * (a02 * a33 - a03 * a32) + a31 * (a02 * a23 - a03 * a22));\n out[2] = (a01 * (a12 * a33 - a13 * a32) - a11 * (a02 * a33 - a03 * a32) + a31 * (a02 * a13 - a03 * a12));\n out[3] = -(a01 * (a12 * a23 - a13 * a22) - a11 * (a02 * a23 - a03 * a22) + a21 * (a02 * a13 - a03 * a12));\n out[4] = -(a10 * (a22 * a33 - a23 * a32) - a20 * (a12 * a33 - a13 * a32) + a30 * (a12 * a23 - a13 * a22));\n out[5] = (a00 * (a22 * a33 - a23 * a32) - a20 * (a02 * a33 - a03 * a32) + a30 * (a02 * a23 - a03 * a22));\n out[6] = -(a00 * (a12 * a33 - a13 * a32) - a10 * (a02 * a33 - a03 * a32) + a30 * (a02 * a13 - a03 * a12));\n out[7] = (a00 * (a12 * a23 - a13 * a22) - a10 * (a02 * a23 - a03 * a22) + a20 * (a02 * a13 - a03 * a12));\n out[8] = (a10 * (a21 * a33 - a23 * a31) - a20 * (a11 * a33 - a13 * a31) + a30 * (a11 * a23 - a13 * a21));\n out[9] = -(a00 * (a21 * a33 - a23 * a31) - a20 * (a01 * a33 - a03 * a31) + a30 * (a01 * a23 - a03 * a21));\n out[10] = (a00 * (a11 * a33 - a13 * a31) - a10 * (a01 * a33 - a03 * a31) + a30 * (a01 * a13 - a03 * a11));\n out[11] = -(a00 * (a11 * a23 - a13 * a21) - a10 * (a01 * a23 - a03 * a21) + a20 * (a01 * a13 - a03 * a11));\n out[12] = -(a10 * (a21 * a32 - a22 * a31) - a20 * (a11 * a32 - a12 * a31) + a30 * (a11 * a22 - a12 * a21));\n out[13] = (a00 * (a21 * a32 - a22 * a31) - a20 * (a01 * a32 - a02 * a31) + a30 * (a01 * a22 - a02 * a21));\n out[14] = -(a00 * (a11 * a32 - a12 * a31) - a10 * (a01 * a32 - a02 * a31) + a30 * (a01 * a12 - a02 * a11));\n out[15] = (a00 * (a11 * a22 - a12 * a21) - a10 * (a01 * a22 - a02 * a21) + a20 * (a01 * a12 - a02 * a11));\n return out;\n};\n\n/**\n * Calculates the determinant of a mat4\n *\n * @param {mat4} a the source matrix\n * @returns {Number} determinant of a\n */\nmat4.determinant = function (a) {\n var a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3],\n a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7],\n a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11],\n a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15],\n\n b00 = a00 * a11 - a01 * a10,\n b01 = a00 * a12 - a02 * a10,\n b02 = a00 * a13 - a03 * a10,\n b03 = a01 * a12 - a02 * a11,\n b04 = a01 * a13 - a03 * a11,\n b05 = a02 * a13 - a03 * a12,\n b06 = a20 * a31 - a21 * a30,\n b07 = a20 * a32 - a22 * a30,\n b08 = a20 * a33 - a23 * a30,\n b09 = a21 * a32 - a22 * a31,\n b10 = a21 * a33 - a23 * a31,\n b11 = a22 * a33 - a23 * a32;\n\n // Calculate the determinant\n return b00 * b11 - b01 * b10 + b02 * b09 + b03 * b08 - b04 * b07 + b05 * b06;\n};\n\n/**\n * Multiplies two mat4's\n *\n * @param {mat4} out the receiving matrix\n * @param {mat4} a the first operand\n * @param {mat4} b the second operand\n * @returns {mat4} out\n */\nmat4.multiply = function (out, a, b) {\n var a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3],\n a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7],\n a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11],\n a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15];\n\n // Cache only the current line of the second matrix\n var b0 = b[0], b1 = b[1], b2 = b[2], b3 = b[3]; \n out[0] = b0*a00 + b1*a10 + b2*a20 + b3*a30;\n out[1] = b0*a01 + b1*a11 + b2*a21 + b3*a31;\n out[2] = b0*a02 + b1*a12 + b2*a22 + b3*a32;\n out[3] = b0*a03 + b1*a13 + b2*a23 + b3*a33;\n\n b0 = b[4]; b1 = b[5]; b2 = b[6]; b3 = b[7];\n out[4] = b0*a00 + b1*a10 + b2*a20 + b3*a30;\n out[5] = b0*a01 + b1*a11 + b2*a21 + b3*a31;\n out[6] = b0*a02 + b1*a12 + b2*a22 + b3*a32;\n out[7] = b0*a03 + b1*a13 + b2*a23 + b3*a33;\n\n b0 = b[8]; b1 = b[9]; b2 = b[10]; b3 = b[11];\n out[8] = b0*a00 + b1*a10 + b2*a20 + b3*a30;\n out[9] = b0*a01 + b1*a11 + b2*a21 + b3*a31;\n out[10] = b0*a02 + b1*a12 + b2*a22 + b3*a32;\n out[11] = b0*a03 + b1*a13 + b2*a23 + b3*a33;\n\n b0 = b[12]; b1 = b[13]; b2 = b[14]; b3 = b[15];\n out[12] = b0*a00 + b1*a10 + b2*a20 + b3*a30;\n out[13] = b0*a01 + b1*a11 + b2*a21 + b3*a31;\n out[14] = b0*a02 + b1*a12 + b2*a22 + b3*a32;\n out[15] = b0*a03 + b1*a13 + b2*a23 + b3*a33;\n return out;\n};\n\n/**\n * Alias for {@link mat4.multiply}\n * @function\n */\nmat4.mul = mat4.multiply;\n\n/**\n * Translate a mat4 by the given vector\n *\n * @param {mat4} out the receiving matrix\n * @param {mat4} a the matrix to translate\n * @param {vec3} v vector to translate by\n * @returns {mat4} out\n */\nmat4.translate = function (out, a, v) {\n var x = v[0], y = v[1], z = v[2],\n a00, a01, a02, a03,\n a10, a11, a12, a13,\n a20, a21, a22, a23;\n\n if (a === out) {\n out[12] = a[0] * x + a[4] * y + a[8] * z + a[12];\n out[13] = a[1] * x + a[5] * y + a[9] * z + a[13];\n out[14] = a[2] * x + a[6] * y + a[10] * z + a[14];\n out[15] = a[3] * x + a[7] * y + a[11] * z + a[15];\n } else {\n a00 = a[0]; a01 = a[1]; a02 = a[2]; a03 = a[3];\n a10 = a[4]; a11 = a[5]; a12 = a[6]; a13 = a[7];\n a20 = a[8]; a21 = a[9]; a22 = a[10]; a23 = a[11];\n\n out[0] = a00; out[1] = a01; out[2] = a02; out[3] = a03;\n out[4] = a10; out[5] = a11; out[6] = a12; out[7] = a13;\n out[8] = a20; out[9] = a21; out[10] = a22; out[11] = a23;\n\n out[12] = a00 * x + a10 * y + a20 * z + a[12];\n out[13] = a01 * x + a11 * y + a21 * z + a[13];\n out[14] = a02 * x + a12 * y + a22 * z + a[14];\n out[15] = a03 * x + a13 * y + a23 * z + a[15];\n }\n\n return out;\n};\n\n/**\n * Scales the mat4 by the dimensions in the given vec3\n *\n * @param {mat4} out the receiving matrix\n * @param {mat4} a the matrix to scale\n * @param {vec3} v the vec3 to scale the matrix by\n * @returns {mat4} out\n **/\nmat4.scale = function(out, a, v) {\n var x = v[0], y = v[1], z = v[2];\n\n out[0] = a[0] * x;\n out[1] = a[1] * x;\n out[2] = a[2] * x;\n out[3] = a[3] * x;\n out[4] = a[4] * y;\n out[5] = a[5] * y;\n out[6] = a[6] * y;\n out[7] = a[7] * y;\n out[8] = a[8] * z;\n out[9] = a[9] * z;\n out[10] = a[10] * z;\n out[11] = a[11] * z;\n out[12] = a[12];\n out[13] = a[13];\n out[14] = a[14];\n out[15] = a[15];\n return out;\n};\n\n/**\n * Rotates a mat4 by the given angle around the given axis\n *\n * @param {mat4} out the receiving matrix\n * @param {mat4} a the matrix to rotate\n * @param {Number} rad the angle to rotate the matrix by\n * @param {vec3} axis the axis to rotate around\n * @returns {mat4} out\n */\nmat4.rotate = function (out, a, rad, axis) {\n var x = axis[0], y = axis[1], z = axis[2],\n len = Math.sqrt(x * x + y * y + z * z),\n s, c, t,\n a00, a01, a02, a03,\n a10, a11, a12, a13,\n a20, a21, a22, a23,\n b00, b01, b02,\n b10, b11, b12,\n b20, b21, b22;\n\n if (Math.abs(len) < glMatrix.EPSILON) { return null; }\n \n len = 1 / len;\n x *= len;\n y *= len;\n z *= len;\n\n s = Math.sin(rad);\n c = Math.cos(rad);\n t = 1 - c;\n\n a00 = a[0]; a01 = a[1]; a02 = a[2]; a03 = a[3];\n a10 = a[4]; a11 = a[5]; a12 = a[6]; a13 = a[7];\n a20 = a[8]; a21 = a[9]; a22 = a[10]; a23 = a[11];\n\n // Construct the elements of the rotation matrix\n b00 = x * x * t + c; b01 = y * x * t + z * s; b02 = z * x * t - y * s;\n b10 = x * y * t - z * s; b11 = y * y * t + c; b12 = z * y * t + x * s;\n b20 = x * z * t + y * s; b21 = y * z * t - x * s; b22 = z * z * t + c;\n\n // Perform rotation-specific matrix multiplication\n out[0] = a00 * b00 + a10 * b01 + a20 * b02;\n out[1] = a01 * b00 + a11 * b01 + a21 * b02;\n out[2] = a02 * b00 + a12 * b01 + a22 * b02;\n out[3] = a03 * b00 + a13 * b01 + a23 * b02;\n out[4] = a00 * b10 + a10 * b11 + a20 * b12;\n out[5] = a01 * b10 + a11 * b11 + a21 * b12;\n out[6] = a02 * b10 + a12 * b11 + a22 * b12;\n out[7] = a03 * b10 + a13 * b11 + a23 * b12;\n out[8] = a00 * b20 + a10 * b21 + a20 * b22;\n out[9] = a01 * b20 + a11 * b21 + a21 * b22;\n out[10] = a02 * b20 + a12 * b21 + a22 * b22;\n out[11] = a03 * b20 + a13 * b21 + a23 * b22;\n\n if (a !== out) { // If the source and destination differ, copy the unchanged last row\n out[12] = a[12];\n out[13] = a[13];\n out[14] = a[14];\n out[15] = a[15];\n }\n return out;\n};\n\n/**\n * Rotates a matrix by the given angle around the X axis\n *\n * @param {mat4} out the receiving matrix\n * @param {mat4} a the matrix to rotate\n * @param {Number} rad the angle to rotate the matrix by\n * @returns {mat4} out\n */\nmat4.rotateX = function (out, a, rad) {\n var s = Math.sin(rad),\n c = Math.cos(rad),\n a10 = a[4],\n a11 = a[5],\n a12 = a[6],\n a13 = a[7],\n a20 = a[8],\n a21 = a[9],\n a22 = a[10],\n a23 = a[11];\n\n if (a !== out) { // If the source and destination differ, copy the unchanged rows\n out[0] = a[0];\n out[1] = a[1];\n out[2] = a[2];\n out[3] = a[3];\n out[12] = a[12];\n out[13] = a[13];\n out[14] = a[14];\n out[15] = a[15];\n }\n\n // Perform axis-specific matrix multiplication\n out[4] = a10 * c + a20 * s;\n out[5] = a11 * c + a21 * s;\n out[6] = a12 * c + a22 * s;\n out[7] = a13 * c + a23 * s;\n out[8] = a20 * c - a10 * s;\n out[9] = a21 * c - a11 * s;\n out[10] = a22 * c - a12 * s;\n out[11] = a23 * c - a13 * s;\n return out;\n};\n\n/**\n * Rotates a matrix by the given angle around the Y axis\n *\n * @param {mat4} out the receiving matrix\n * @param {mat4} a the matrix to rotate\n * @param {Number} rad the angle to rotate the matrix by\n * @returns {mat4} out\n */\nmat4.rotateY = function (out, a, rad) {\n var s = Math.sin(rad),\n c = Math.cos(rad),\n a00 = a[0],\n a01 = a[1],\n a02 = a[2],\n a03 = a[3],\n a20 = a[8],\n a21 = a[9],\n a22 = a[10],\n a23 = a[11];\n\n if (a !== out) { // If the source and destination differ, copy the unchanged rows\n out[4] = a[4];\n out[5] = a[5];\n out[6] = a[6];\n out[7] = a[7];\n out[12] = a[12];\n out[13] = a[13];\n out[14] = a[14];\n out[15] = a[15];\n }\n\n // Perform axis-specific matrix multiplication\n out[0] = a00 * c - a20 * s;\n out[1] = a01 * c - a21 * s;\n out[2] = a02 * c - a22 * s;\n out[3] = a03 * c - a23 * s;\n out[8] = a00 * s + a20 * c;\n out[9] = a01 * s + a21 * c;\n out[10] = a02 * s + a22 * c;\n out[11] = a03 * s + a23 * c;\n return out;\n};\n\n/**\n * Rotates a matrix by the given angle around the Z axis\n *\n * @param {mat4} out the receiving matrix\n * @param {mat4} a the matrix to rotate\n * @param {Number} rad the angle to rotate the matrix by\n * @returns {mat4} out\n */\nmat4.rotateZ = function (out, a, rad) {\n var s = Math.sin(rad),\n c = Math.cos(rad),\n a00 = a[0],\n a01 = a[1],\n a02 = a[2],\n a03 = a[3],\n a10 = a[4],\n a11 = a[5],\n a12 = a[6],\n a13 = a[7];\n\n if (a !== out) { // If the source and destination differ, copy the unchanged last row\n out[8] = a[8];\n out[9] = a[9];\n out[10] = a[10];\n out[11] = a[11];\n out[12] = a[12];\n out[13] = a[13];\n out[14] = a[14];\n out[15] = a[15];\n }\n\n // Perform axis-specific matrix multiplication\n out[0] = a00 * c + a10 * s;\n out[1] = a01 * c + a11 * s;\n out[2] = a02 * c + a12 * s;\n out[3] = a03 * c + a13 * s;\n out[4] = a10 * c - a00 * s;\n out[5] = a11 * c - a01 * s;\n out[6] = a12 * c - a02 * s;\n out[7] = a13 * c - a03 * s;\n return out;\n};\n\n/**\n * Creates a matrix from a vector translation\n * This is equivalent to (but much faster than):\n *\n * mat4.identity(dest);\n * mat4.translate(dest, dest, vec);\n *\n * @param {mat4} out mat4 receiving operation result\n * @param {vec3} v Translation vector\n * @returns {mat4} out\n */\nmat4.fromTranslation = function(out, v) {\n out[0] = 1;\n out[1] = 0;\n out[2] = 0;\n out[3] = 0;\n out[4] = 0;\n out[5] = 1;\n out[6] = 0;\n out[7] = 0;\n out[8] = 0;\n out[9] = 0;\n out[10] = 1;\n out[11] = 0;\n out[12] = v[0];\n out[13] = v[1];\n out[14] = v[2];\n out[15] = 1;\n return out;\n}\n\n/**\n * Creates a matrix from a vector scaling\n * This is equivalent to (but much faster than):\n *\n * mat4.identity(dest);\n * mat4.scale(dest, dest, vec);\n *\n * @param {mat4} out mat4 receiving operation result\n * @param {vec3} v Scaling vector\n * @returns {mat4} out\n */\nmat4.fromScaling = function(out, v) {\n out[0] = v[0];\n out[1] = 0;\n out[2] = 0;\n out[3] = 0;\n out[4] = 0;\n out[5] = v[1];\n out[6] = 0;\n out[7] = 0;\n out[8] = 0;\n out[9] = 0;\n out[10] = v[2];\n out[11] = 0;\n out[12] = 0;\n out[13] = 0;\n out[14] = 0;\n out[15] = 1;\n return out;\n}\n\n/**\n * Creates a matrix from a given angle around a given axis\n * This is equivalent to (but much faster than):\n *\n * mat4.identity(dest);\n * mat4.rotate(dest, dest, rad, axis);\n *\n * @param {mat4} out mat4 receiving operation result\n * @param {Number} rad the angle to rotate the matrix by\n * @param {vec3} axis the axis to rotate around\n * @returns {mat4} out\n */\nmat4.fromRotation = function(out, rad, axis) {\n var x = axis[0], y = axis[1], z = axis[2],\n len = Math.sqrt(x * x + y * y + z * z),\n s, c, t;\n \n if (Math.abs(len) < glMatrix.EPSILON) { return null; }\n \n len = 1 / len;\n x *= len;\n y *= len;\n z *= len;\n \n s = Math.sin(rad);\n c = Math.cos(rad);\n t = 1 - c;\n \n // Perform rotation-specific matrix multiplication\n out[0] = x * x * t + c;\n out[1] = y * x * t + z * s;\n out[2] = z * x * t - y * s;\n out[3] = 0;\n out[4] = x * y * t - z * s;\n out[5] = y * y * t + c;\n out[6] = z * y * t + x * s;\n out[7] = 0;\n out[8] = x * z * t + y * s;\n out[9] = y * z * t - x * s;\n out[10] = z * z * t + c;\n out[11] = 0;\n out[12] = 0;\n out[13] = 0;\n out[14] = 0;\n out[15] = 1;\n return out;\n}\n\n/**\n * Creates a matrix from the given angle around the X axis\n * This is equivalent to (but much faster than):\n *\n * mat4.identity(dest);\n * mat4.rotateX(dest, dest, rad);\n *\n * @param {mat4} out mat4 receiving operation result\n * @param {Number} rad the angle to rotate the matrix by\n * @returns {mat4} out\n */\nmat4.fromXRotation = function(out, rad) {\n var s = Math.sin(rad),\n c = Math.cos(rad);\n \n // Perform axis-specific matrix multiplication\n out[0] = 1;\n out[1] = 0;\n out[2] = 0;\n out[3] = 0;\n out[4] = 0;\n out[5] = c;\n out[6] = s;\n out[7] = 0;\n out[8] = 0;\n out[9] = -s;\n out[10] = c;\n out[11] = 0;\n out[12] = 0;\n out[13] = 0;\n out[14] = 0;\n out[15] = 1;\n return out;\n}\n\n/**\n * Creates a matrix from the given angle around the Y axis\n * This is equivalent to (but much faster than):\n *\n * mat4.identity(dest);\n * mat4.rotateY(dest, dest, rad);\n *\n * @param {mat4} out mat4 receiving operation result\n * @param {Number} rad the angle to rotate the matrix by\n * @returns {mat4} out\n */\nmat4.fromYRotation = function(out, rad) {\n var s = Math.sin(rad),\n c = Math.cos(rad);\n \n // Perform axis-specific matrix multiplication\n out[0] = c;\n out[1] = 0;\n out[2] = -s;\n out[3] = 0;\n out[4] = 0;\n out[5] = 1;\n out[6] = 0;\n out[7] = 0;\n out[8] = s;\n out[9] = 0;\n out[10] = c;\n out[11] = 0;\n out[12] = 0;\n out[13] = 0;\n out[14] = 0;\n out[15] = 1;\n return out;\n}\n\n/**\n * Creates a matrix from the given angle around the Z axis\n * This is equivalent to (but much faster than):\n *\n * mat4.identity(dest);\n * mat4.rotateZ(dest, dest, rad);\n *\n * @param {mat4} out mat4 receiving operation result\n * @param {Number} rad the angle to rotate the matrix by\n * @returns {mat4} out\n */\nmat4.fromZRotation = function(out, rad) {\n var s = Math.sin(rad),\n c = Math.cos(rad);\n \n // Perform axis-specific matrix multiplication\n out[0] = c;\n out[1] = s;\n out[2] = 0;\n out[3] = 0;\n out[4] = -s;\n out[5] = c;\n out[6] = 0;\n out[7] = 0;\n out[8] = 0;\n out[9] = 0;\n out[10] = 1;\n out[11] = 0;\n out[12] = 0;\n out[13] = 0;\n out[14] = 0;\n out[15] = 1;\n return out;\n}\n\n/**\n * Creates a matrix from a quaternion rotation and vector translation\n * This is equivalent to (but much faster than):\n *\n * mat4.identity(dest);\n * mat4.translate(dest, vec);\n * var quatMat = mat4.create();\n * quat4.toMat4(quat, quatMat);\n * mat4.multiply(dest, quatMat);\n *\n * @param {mat4} out mat4 receiving operation result\n * @param {quat4} q Rotation quaternion\n * @param {vec3} v Translation vector\n * @returns {mat4} out\n */\nmat4.fromRotationTranslation = function (out, q, v) {\n // Quaternion math\n var x = q[0], y = q[1], z = q[2], w = q[3],\n x2 = x + x,\n y2 = y + y,\n z2 = z + z,\n\n xx = x * x2,\n xy = x * y2,\n xz = x * z2,\n yy = y * y2,\n yz = y * z2,\n zz = z * z2,\n wx = w * x2,\n wy = w * y2,\n wz = w * z2;\n\n out[0] = 1 - (yy + zz);\n out[1] = xy + wz;\n out[2] = xz - wy;\n out[3] = 0;\n out[4] = xy - wz;\n out[5] = 1 - (xx + zz);\n out[6] = yz + wx;\n out[7] = 0;\n out[8] = xz + wy;\n out[9] = yz - wx;\n out[10] = 1 - (xx + yy);\n out[11] = 0;\n out[12] = v[0];\n out[13] = v[1];\n out[14] = v[2];\n out[15] = 1;\n \n return out;\n};\n\n/**\n * Creates a matrix from a quaternion rotation, vector translation and vector scale\n * This is equivalent to (but much faster than):\n *\n * mat4.identity(dest);\n * mat4.translate(dest, vec);\n * var quatMat = mat4.create();\n * quat4.toMat4(quat, quatMat);\n * mat4.multiply(dest, quatMat);\n * mat4.scale(dest, scale)\n *\n * @param {mat4} out mat4 receiving operation result\n * @param {quat4} q Rotation quaternion\n * @param {vec3} v Translation vector\n * @param {vec3} s Scaling vector\n * @returns {mat4} out\n */\nmat4.fromRotationTranslationScale = function (out, q, v, s) {\n // Quaternion math\n var x = q[0], y = q[1], z = q[2], w = q[3],\n x2 = x + x,\n y2 = y + y,\n z2 = z + z,\n\n xx = x * x2,\n xy = x * y2,\n xz = x * z2,\n yy = y * y2,\n yz = y * z2,\n zz = z * z2,\n wx = w * x2,\n wy = w * y2,\n wz = w * z2,\n sx = s[0],\n sy = s[1],\n sz = s[2];\n\n out[0] = (1 - (yy + zz)) * sx;\n out[1] = (xy + wz) * sx;\n out[2] = (xz - wy) * sx;\n out[3] = 0;\n out[4] = (xy - wz) * sy;\n out[5] = (1 - (xx + zz)) * sy;\n out[6] = (yz + wx) * sy;\n out[7] = 0;\n out[8] = (xz + wy) * sz;\n out[9] = (yz - wx) * sz;\n out[10] = (1 - (xx + yy)) * sz;\n out[11] = 0;\n out[12] = v[0];\n out[13] = v[1];\n out[14] = v[2];\n out[15] = 1;\n \n return out;\n};\n\n/**\n * Creates a matrix from a quaternion rotation, vector translation and vector scale, rotating and scaling around the given origin\n * This is equivalent to (but much faster than):\n *\n * mat4.identity(dest);\n * mat4.translate(dest, vec);\n * mat4.translate(dest, origin);\n * var quatMat = mat4.create();\n * quat4.toMat4(quat, quatMat);\n * mat4.multiply(dest, quatMat);\n * mat4.scale(dest, scale)\n * mat4.translate(dest, negativeOrigin);\n *\n * @param {mat4} out mat4 receiving operation result\n * @param {quat4} q Rotation quaternion\n * @param {vec3} v Translation vector\n * @param {vec3} s Scaling vector\n * @param {vec3} o The origin vector around which to scale and rotate\n * @returns {mat4} out\n */\nmat4.fromRotationTranslationScaleOrigin = function (out, q, v, s, o) {\n // Quaternion math\n var x = q[0], y = q[1], z = q[2], w = q[3],\n x2 = x + x,\n y2 = y + y,\n z2 = z + z,\n\n xx = x * x2,\n xy = x * y2,\n xz = x * z2,\n yy = y * y2,\n yz = y * z2,\n zz = z * z2,\n wx = w * x2,\n wy = w * y2,\n wz = w * z2,\n \n sx = s[0],\n sy = s[1],\n sz = s[2],\n\n ox = o[0],\n oy = o[1],\n oz = o[2];\n \n out[0] = (1 - (yy + zz)) * sx;\n out[1] = (xy + wz) * sx;\n out[2] = (xz - wy) * sx;\n out[3] = 0;\n out[4] = (xy - wz) * sy;\n out[5] = (1 - (xx + zz)) * sy;\n out[6] = (yz + wx) * sy;\n out[7] = 0;\n out[8] = (xz + wy) * sz;\n out[9] = (yz - wx) * sz;\n out[10] = (1 - (xx + yy)) * sz;\n out[11] = 0;\n out[12] = v[0] + ox - (out[0] * ox + out[4] * oy + out[8] * oz);\n out[13] = v[1] + oy - (out[1] * ox + out[5] * oy + out[9] * oz);\n out[14] = v[2] + oz - (out[2] * ox + out[6] * oy + out[10] * oz);\n out[15] = 1;\n \n return out;\n};\n\nmat4.fromQuat = function (out, q) {\n var x = q[0], y = q[1], z = q[2], w = q[3],\n x2 = x + x,\n y2 = y + y,\n z2 = z + z,\n\n xx = x * x2,\n yx = y * x2,\n yy = y * y2,\n zx = z * x2,\n zy = z * y2,\n zz = z * z2,\n wx = w * x2,\n wy = w * y2,\n wz = w * z2;\n\n out[0] = 1 - yy - zz;\n out[1] = yx + wz;\n out[2] = zx - wy;\n out[3] = 0;\n\n out[4] = yx - wz;\n out[5] = 1 - xx - zz;\n out[6] = zy + wx;\n out[7] = 0;\n\n out[8] = zx + wy;\n out[9] = zy - wx;\n out[10] = 1 - xx - yy;\n out[11] = 0;\n\n out[12] = 0;\n out[13] = 0;\n out[14] = 0;\n out[15] = 1;\n\n return out;\n};\n\n/**\n * Generates a frustum matrix with the given bounds\n *\n * @param {mat4} out mat4 frustum matrix will be written into\n * @param {Number} left Left bound of the frustum\n * @param {Number} right Right bound of the frustum\n * @param {Number} bottom Bottom bound of the frustum\n * @param {Number} top Top bound of the frustum\n * @param {Number} near Near bound of the frustum\n * @param {Number} far Far bound of the frustum\n * @returns {mat4} out\n */\nmat4.frustum = function (out, left, right, bottom, top, near, far) {\n var rl = 1 / (right - left),\n tb = 1 / (top - bottom),\n nf = 1 / (near - far);\n out[0] = (near * 2) * rl;\n out[1] = 0;\n out[2] = 0;\n out[3] = 0;\n out[4] = 0;\n out[5] = (near * 2) * tb;\n out[6] = 0;\n out[7] = 0;\n out[8] = (right + left) * rl;\n out[9] = (top + bottom) * tb;\n out[10] = (far + near) * nf;\n out[11] = -1;\n out[12] = 0;\n out[13] = 0;\n out[14] = (far * near * 2) * nf;\n out[15] = 0;\n return out;\n};\n\n/**\n * Generates a perspective projection matrix with the given bounds\n *\n * @param {mat4} out mat4 frustum matrix will be written into\n * @param {number} fovy Vertical field of view in radians\n * @param {number} aspect Aspect ratio. typically viewport width/height\n * @param {number} near Near bound of the frustum\n * @param {number} far Far bound of the frustum\n * @returns {mat4} out\n */\nmat4.perspective = function (out, fovy, aspect, near, far) {\n var f = 1.0 / Math.tan(fovy / 2),\n nf = 1 / (near - far);\n out[0] = f / aspect;\n out[1] = 0;\n out[2] = 0;\n out[3] = 0;\n out[4] = 0;\n out[5] = f;\n out[6] = 0;\n out[7] = 0;\n out[8] = 0;\n out[9] = 0;\n out[10] = (far + near) * nf;\n out[11] = -1;\n out[12] = 0;\n out[13] = 0;\n out[14] = (2 * far * near) * nf;\n out[15] = 0;\n return out;\n};\n\n/**\n * Generates a perspective projection matrix with the given field of view.\n * This is primarily useful for generating projection matrices to be used\n * with the still experiemental WebVR API.\n *\n * @param {mat4} out mat4 frustum matrix will be written into\n * @param {number} fov Object containing the following values: upDegrees, downDegrees, leftDegrees, rightDegrees\n * @param {number} near Near bound of the frustum\n * @param {number} far Far bound of the frustum\n * @returns {mat4} out\n */\nmat4.perspectiveFromFieldOfView = function (out, fov, near, far) {\n var upTan = Math.tan(fov.upDegrees * Math.PI/180.0),\n downTan = Math.tan(fov.downDegrees * Math.PI/180.0),\n leftTan = Math.tan(fov.leftDegrees * Math.PI/180.0),\n rightTan = Math.tan(fov.rightDegrees * Math.PI/180.0),\n xScale = 2.0 / (leftTan + rightTan),\n yScale = 2.0 / (upTan + downTan);\n\n out[0] = xScale;\n out[1] = 0.0;\n out[2] = 0.0;\n out[3] = 0.0;\n out[4] = 0.0;\n out[5] = yScale;\n out[6] = 0.0;\n out[7] = 0.0;\n out[8] = -((leftTan - rightTan) * xScale * 0.5);\n out[9] = ((upTan - downTan) * yScale * 0.5);\n out[10] = far / (near - far);\n out[11] = -1.0;\n out[12] = 0.0;\n out[13] = 0.0;\n out[14] = (far * near) / (near - far);\n out[15] = 0.0;\n return out;\n}\n\n/**\n * Generates a orthogonal projection matrix with the given bounds\n *\n * @param {mat4} out mat4 frustum matrix will be written into\n * @param {number} left Left bound of the frustum\n * @param {number} right Right bound of the frustum\n * @param {number} bottom Bottom bound of the frustum\n * @param {number} top Top bound of the frustum\n * @param {number} near Near bound of the frustum\n * @param {number} far Far bound of the frustum\n * @returns {mat4} out\n */\nmat4.ortho = function (out, left, right, bottom, top, near, far) {\n var lr = 1 / (left - right),\n bt = 1 / (bottom - top),\n nf = 1 / (near - far);\n out[0] = -2 * lr;\n out[1] = 0;\n out[2] = 0;\n out[3] = 0;\n out[4] = 0;\n out[5] = -2 * bt;\n out[6] = 0;\n out[7] = 0;\n out[8] = 0;\n out[9] = 0;\n out[10] = 2 * nf;\n out[11] = 0;\n out[12] = (left + right) * lr;\n out[13] = (top + bottom) * bt;\n out[14] = (far + near) * nf;\n out[15] = 1;\n return out;\n};\n\n/**\n * Generates a look-at matrix with the given eye position, focal point, and up axis\n *\n * @param {mat4} out mat4 frustum matrix will be written into\n * @param {vec3} eye Position of the viewer\n * @param {vec3} center Point the viewer is looking at\n * @param {vec3} up vec3 pointing up\n * @returns {mat4} out\n */\nmat4.lookAt = function (out, eye, center, up) {\n var x0, x1, x2, y0, y1, y2, z0, z1, z2, len,\n eyex = eye[0],\n eyey = eye[1],\n eyez = eye[2],\n upx = up[0],\n upy = up[1],\n upz = up[2],\n centerx = center[0],\n centery = center[1],\n centerz = center[2];\n\n if (Math.abs(eyex - centerx) < glMatrix.EPSILON &&\n Math.abs(eyey - centery) < glMatrix.EPSILON &&\n Math.abs(eyez - centerz) < glMatrix.EPSILON) {\n return mat4.identity(out);\n }\n\n z0 = eyex - centerx;\n z1 = eyey - centery;\n z2 = eyez - centerz;\n\n len = 1 / Math.sqrt(z0 * z0 + z1 * z1 + z2 * z2);\n z0 *= len;\n z1 *= len;\n z2 *= len;\n\n x0 = upy * z2 - upz * z1;\n x1 = upz * z0 - upx * z2;\n x2 = upx * z1 - upy * z0;\n len = Math.sqrt(x0 * x0 + x1 * x1 + x2 * x2);\n if (!len) {\n x0 = 0;\n x1 = 0;\n x2 = 0;\n } else {\n len = 1 / len;\n x0 *= len;\n x1 *= len;\n x2 *= len;\n }\n\n y0 = z1 * x2 - z2 * x1;\n y1 = z2 * x0 - z0 * x2;\n y2 = z0 * x1 - z1 * x0;\n\n len = Math.sqrt(y0 * y0 + y1 * y1 + y2 * y2);\n if (!len) {\n y0 = 0;\n y1 = 0;\n y2 = 0;\n } else {\n len = 1 / len;\n y0 *= len;\n y1 *= len;\n y2 *= len;\n }\n\n out[0] = x0;\n out[1] = y0;\n out[2] = z0;\n out[3] = 0;\n out[4] = x1;\n out[5] = y1;\n out[6] = z1;\n out[7] = 0;\n out[8] = x2;\n out[9] = y2;\n out[10] = z2;\n out[11] = 0;\n out[12] = -(x0 * eyex + x1 * eyey + x2 * eyez);\n out[13] = -(y0 * eyex + y1 * eyey + y2 * eyez);\n out[14] = -(z0 * eyex + z1 * eyey + z2 * eyez);\n out[15] = 1;\n\n return out;\n};\n\n/**\n * Returns a string representation of a mat4\n *\n * @param {mat4} mat matrix to represent as a string\n * @returns {String} string representation of the matrix\n */\nmat4.str = function (a) {\n return 'mat4(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' + a[3] + ', ' +\n a[4] + ', ' + a[5] + ', ' + a[6] + ', ' + a[7] + ', ' +\n a[8] + ', ' + a[9] + ', ' + a[10] + ', ' + a[11] + ', ' + \n a[12] + ', ' + a[13] + ', ' + a[14] + ', ' + a[15] + ')';\n};\n\n/**\n * Returns Frobenius norm of a mat4\n *\n * @param {mat4} a the matrix to calculate Frobenius norm of\n * @returns {Number} Frobenius norm\n */\nmat4.frob = function (a) {\n return(Math.sqrt(Math.pow(a[0], 2) + Math.pow(a[1], 2) + Math.pow(a[2], 2) + Math.pow(a[3], 2) + Math.pow(a[4], 2) + Math.pow(a[5], 2) + Math.pow(a[6], 2) + Math.pow(a[7], 2) + Math.pow(a[8], 2) + Math.pow(a[9], 2) + Math.pow(a[10], 2) + Math.pow(a[11], 2) + Math.pow(a[12], 2) + Math.pow(a[13], 2) + Math.pow(a[14], 2) + Math.pow(a[15], 2) ))\n};\n\n\nmodule.exports = mat4;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/gl-matrix/src/gl-matrix/mat4.js\n ** module id = 14\n ** module chunks = 0\n **/","/* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV.\n\nPermission is hereby granted, free of charge, to any person obtaining a copy\nof this software and associated documentation files (the \"Software\"), to deal\nin the Software without restriction, including without limitation the rights\nto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\ncopies of the Software, and to permit persons to whom the Software is\nfurnished to do so, subject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in\nall copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\nFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\nAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\nLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\nOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\nTHE SOFTWARE. */\n\nvar glMatrix = require(\"./common.js\");\nvar mat3 = require(\"./mat3.js\");\nvar vec3 = require(\"./vec3.js\");\nvar vec4 = require(\"./vec4.js\");\n\n/**\n * @class Quaternion\n * @name quat\n */\nvar quat = {};\n\n/**\n * Creates a new identity quat\n *\n * @returns {quat} a new quaternion\n */\nquat.create = function() {\n var out = new glMatrix.ARRAY_TYPE(4);\n out[0] = 0;\n out[1] = 0;\n out[2] = 0;\n out[3] = 1;\n return out;\n};\n\n/**\n * Sets a quaternion to represent the shortest rotation from one\n * vector to another.\n *\n * Both vectors are assumed to be unit length.\n *\n * @param {quat} out the receiving quaternion.\n * @param {vec3} a the initial vector\n * @param {vec3} b the destination vector\n * @returns {quat} out\n */\nquat.rotationTo = (function() {\n var tmpvec3 = vec3.create();\n var xUnitVec3 = vec3.fromValues(1,0,0);\n var yUnitVec3 = vec3.fromValues(0,1,0);\n\n return function(out, a, b) {\n var dot = vec3.dot(a, b);\n if (dot < -0.999999) {\n vec3.cross(tmpvec3, xUnitVec3, a);\n if (vec3.length(tmpvec3) < 0.000001)\n vec3.cross(tmpvec3, yUnitVec3, a);\n vec3.normalize(tmpvec3, tmpvec3);\n quat.setAxisAngle(out, tmpvec3, Math.PI);\n return out;\n } else if (dot > 0.999999) {\n out[0] = 0;\n out[1] = 0;\n out[2] = 0;\n out[3] = 1;\n return out;\n } else {\n vec3.cross(tmpvec3, a, b);\n out[0] = tmpvec3[0];\n out[1] = tmpvec3[1];\n out[2] = tmpvec3[2];\n out[3] = 1 + dot;\n return quat.normalize(out, out);\n }\n };\n})();\n\n/**\n * Sets the specified quaternion with values corresponding to the given\n * axes. Each axis is a vec3 and is expected to be unit length and\n * perpendicular to all other specified axes.\n *\n * @param {vec3} view the vector representing the viewing direction\n * @param {vec3} right the vector representing the local \"right\" direction\n * @param {vec3} up the vector representing the local \"up\" direction\n * @returns {quat} out\n */\nquat.setAxes = (function() {\n var matr = mat3.create();\n\n return function(out, view, right, up) {\n matr[0] = right[0];\n matr[3] = right[1];\n matr[6] = right[2];\n\n matr[1] = up[0];\n matr[4] = up[1];\n matr[7] = up[2];\n\n matr[2] = -view[0];\n matr[5] = -view[1];\n matr[8] = -view[2];\n\n return quat.normalize(out, quat.fromMat3(out, matr));\n };\n})();\n\n/**\n * Creates a new quat initialized with values from an existing quaternion\n *\n * @param {quat} a quaternion to clone\n * @returns {quat} a new quaternion\n * @function\n */\nquat.clone = vec4.clone;\n\n/**\n * Creates a new quat initialized with the given values\n *\n * @param {Number} x X component\n * @param {Number} y Y component\n * @param {Number} z Z component\n * @param {Number} w W component\n * @returns {quat} a new quaternion\n * @function\n */\nquat.fromValues = vec4.fromValues;\n\n/**\n * Copy the values from one quat to another\n *\n * @param {quat} out the receiving quaternion\n * @param {quat} a the source quaternion\n * @returns {quat} out\n * @function\n */\nquat.copy = vec4.copy;\n\n/**\n * Set the components of a quat to the given values\n *\n * @param {quat} out the receiving quaternion\n * @param {Number} x X component\n * @param {Number} y Y component\n * @param {Number} z Z component\n * @param {Number} w W component\n * @returns {quat} out\n * @function\n */\nquat.set = vec4.set;\n\n/**\n * Set a quat to the identity quaternion\n *\n * @param {quat} out the receiving quaternion\n * @returns {quat} out\n */\nquat.identity = function(out) {\n out[0] = 0;\n out[1] = 0;\n out[2] = 0;\n out[3] = 1;\n return out;\n};\n\n/**\n * Sets a quat from the given angle and rotation axis,\n * then returns it.\n *\n * @param {quat} out the receiving quaternion\n * @param {vec3} axis the axis around which to rotate\n * @param {Number} rad the angle in radians\n * @returns {quat} out\n **/\nquat.setAxisAngle = function(out, axis, rad) {\n rad = rad * 0.5;\n var s = Math.sin(rad);\n out[0] = s * axis[0];\n out[1] = s * axis[1];\n out[2] = s * axis[2];\n out[3] = Math.cos(rad);\n return out;\n};\n\n/**\n * Adds two quat's\n *\n * @param {quat} out the receiving quaternion\n * @param {quat} a the first operand\n * @param {quat} b the second operand\n * @returns {quat} out\n * @function\n */\nquat.add = vec4.add;\n\n/**\n * Multiplies two quat's\n *\n * @param {quat} out the receiving quaternion\n * @param {quat} a the first operand\n * @param {quat} b the second operand\n * @returns {quat} out\n */\nquat.multiply = function(out, a, b) {\n var ax = a[0], ay = a[1], az = a[2], aw = a[3],\n bx = b[0], by = b[1], bz = b[2], bw = b[3];\n\n out[0] = ax * bw + aw * bx + ay * bz - az * by;\n out[1] = ay * bw + aw * by + az * bx - ax * bz;\n out[2] = az * bw + aw * bz + ax * by - ay * bx;\n out[3] = aw * bw - ax * bx - ay * by - az * bz;\n return out;\n};\n\n/**\n * Alias for {@link quat.multiply}\n * @function\n */\nquat.mul = quat.multiply;\n\n/**\n * Scales a quat by a scalar number\n *\n * @param {quat} out the receiving vector\n * @param {quat} a the vector to scale\n * @param {Number} b amount to scale the vector by\n * @returns {quat} out\n * @function\n */\nquat.scale = vec4.scale;\n\n/**\n * Rotates a quaternion by the given angle about the X axis\n *\n * @param {quat} out quat receiving operation result\n * @param {quat} a quat to rotate\n * @param {number} rad angle (in radians) to rotate\n * @returns {quat} out\n */\nquat.rotateX = function (out, a, rad) {\n rad *= 0.5; \n\n var ax = a[0], ay = a[1], az = a[2], aw = a[3],\n bx = Math.sin(rad), bw = Math.cos(rad);\n\n out[0] = ax * bw + aw * bx;\n out[1] = ay * bw + az * bx;\n out[2] = az * bw - ay * bx;\n out[3] = aw * bw - ax * bx;\n return out;\n};\n\n/**\n * Rotates a quaternion by the given angle about the Y axis\n *\n * @param {quat} out quat receiving operation result\n * @param {quat} a quat to rotate\n * @param {number} rad angle (in radians) to rotate\n * @returns {quat} out\n */\nquat.rotateY = function (out, a, rad) {\n rad *= 0.5; \n\n var ax = a[0], ay = a[1], az = a[2], aw = a[3],\n by = Math.sin(rad), bw = Math.cos(rad);\n\n out[0] = ax * bw - az * by;\n out[1] = ay * bw + aw * by;\n out[2] = az * bw + ax * by;\n out[3] = aw * bw - ay * by;\n return out;\n};\n\n/**\n * Rotates a quaternion by the given angle about the Z axis\n *\n * @param {quat} out quat receiving operation result\n * @param {quat} a quat to rotate\n * @param {number} rad angle (in radians) to rotate\n * @returns {quat} out\n */\nquat.rotateZ = function (out, a, rad) {\n rad *= 0.5; \n\n var ax = a[0], ay = a[1], az = a[2], aw = a[3],\n bz = Math.sin(rad), bw = Math.cos(rad);\n\n out[0] = ax * bw + ay * bz;\n out[1] = ay * bw - ax * bz;\n out[2] = az * bw + aw * bz;\n out[3] = aw * bw - az * bz;\n return out;\n};\n\n/**\n * Calculates the W component of a quat from the X, Y, and Z components.\n * Assumes that quaternion is 1 unit in length.\n * Any existing W component will be ignored.\n *\n * @param {quat} out the receiving quaternion\n * @param {quat} a quat to calculate W component of\n * @returns {quat} out\n */\nquat.calculateW = function (out, a) {\n var x = a[0], y = a[1], z = a[2];\n\n out[0] = x;\n out[1] = y;\n out[2] = z;\n out[3] = Math.sqrt(Math.abs(1.0 - x * x - y * y - z * z));\n return out;\n};\n\n/**\n * Calculates the dot product of two quat's\n *\n * @param {quat} a the first operand\n * @param {quat} b the second operand\n * @returns {Number} dot product of a and b\n * @function\n */\nquat.dot = vec4.dot;\n\n/**\n * Performs a linear interpolation between two quat's\n *\n * @param {quat} out the receiving quaternion\n * @param {quat} a the first operand\n * @param {quat} b the second operand\n * @param {Number} t interpolation amount between the two inputs\n * @returns {quat} out\n * @function\n */\nquat.lerp = vec4.lerp;\n\n/**\n * Performs a spherical linear interpolation between two quat\n *\n * @param {quat} out the receiving quaternion\n * @param {quat} a the first operand\n * @param {quat} b the second operand\n * @param {Number} t interpolation amount between the two inputs\n * @returns {quat} out\n */\nquat.slerp = function (out, a, b, t) {\n // benchmarks:\n // http://jsperf.com/quaternion-slerp-implementations\n\n var ax = a[0], ay = a[1], az = a[2], aw = a[3],\n bx = b[0], by = b[1], bz = b[2], bw = b[3];\n\n var omega, cosom, sinom, scale0, scale1;\n\n // calc cosine\n cosom = ax * bx + ay * by + az * bz + aw * bw;\n // adjust signs (if necessary)\n if ( cosom < 0.0 ) {\n cosom = -cosom;\n bx = - bx;\n by = - by;\n bz = - bz;\n bw = - bw;\n }\n // calculate coefficients\n if ( (1.0 - cosom) > 0.000001 ) {\n // standard case (slerp)\n omega = Math.acos(cosom);\n sinom = Math.sin(omega);\n scale0 = Math.sin((1.0 - t) * omega) / sinom;\n scale1 = Math.sin(t * omega) / sinom;\n } else { \n // \"from\" and \"to\" quaternions are very close \n // ... so we can do a linear interpolation\n scale0 = 1.0 - t;\n scale1 = t;\n }\n // calculate final values\n out[0] = scale0 * ax + scale1 * bx;\n out[1] = scale0 * ay + scale1 * by;\n out[2] = scale0 * az + scale1 * bz;\n out[3] = scale0 * aw + scale1 * bw;\n \n return out;\n};\n\n/**\n * Performs a spherical linear interpolation with two control points\n *\n * @param {quat} out the receiving quaternion\n * @param {quat} a the first operand\n * @param {quat} b the second operand\n * @param {quat} c the third operand\n * @param {quat} d the fourth operand\n * @param {Number} t interpolation amount\n * @returns {quat} out\n */\nquat.sqlerp = (function () {\n var temp1 = quat.create();\n var temp2 = quat.create();\n \n return function (out, a, b, c, d, t) {\n quat.slerp(temp1, a, d, t);\n quat.slerp(temp2, b, c, t);\n quat.slerp(out, temp1, temp2, 2 * t * (1 - t));\n \n return out;\n };\n}());\n\n/**\n * Calculates the inverse of a quat\n *\n * @param {quat} out the receiving quaternion\n * @param {quat} a quat to calculate inverse of\n * @returns {quat} out\n */\nquat.invert = function(out, a) {\n var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3],\n dot = a0*a0 + a1*a1 + a2*a2 + a3*a3,\n invDot = dot ? 1.0/dot : 0;\n \n // TODO: Would be faster to return [0,0,0,0] immediately if dot == 0\n\n out[0] = -a0*invDot;\n out[1] = -a1*invDot;\n out[2] = -a2*invDot;\n out[3] = a3*invDot;\n return out;\n};\n\n/**\n * Calculates the conjugate of a quat\n * If the quaternion is normalized, this function is faster than quat.inverse and produces the same result.\n *\n * @param {quat} out the receiving quaternion\n * @param {quat} a quat to calculate conjugate of\n * @returns {quat} out\n */\nquat.conjugate = function (out, a) {\n out[0] = -a[0];\n out[1] = -a[1];\n out[2] = -a[2];\n out[3] = a[3];\n return out;\n};\n\n/**\n * Calculates the length of a quat\n *\n * @param {quat} a vector to calculate length of\n * @returns {Number} length of a\n * @function\n */\nquat.length = vec4.length;\n\n/**\n * Alias for {@link quat.length}\n * @function\n */\nquat.len = quat.length;\n\n/**\n * Calculates the squared length of a quat\n *\n * @param {quat} a vector to calculate squared length of\n * @returns {Number} squared length of a\n * @function\n */\nquat.squaredLength = vec4.squaredLength;\n\n/**\n * Alias for {@link quat.squaredLength}\n * @function\n */\nquat.sqrLen = quat.squaredLength;\n\n/**\n * Normalize a quat\n *\n * @param {quat} out the receiving quaternion\n * @param {quat} a quaternion to normalize\n * @returns {quat} out\n * @function\n */\nquat.normalize = vec4.normalize;\n\n/**\n * Creates a quaternion from the given 3x3 rotation matrix.\n *\n * NOTE: The resultant quaternion is not normalized, so you should be sure\n * to renormalize the quaternion yourself where necessary.\n *\n * @param {quat} out the receiving quaternion\n * @param {mat3} m rotation matrix\n * @returns {quat} out\n * @function\n */\nquat.fromMat3 = function(out, m) {\n // Algorithm in Ken Shoemake's article in 1987 SIGGRAPH course notes\n // article \"Quaternion Calculus and Fast Animation\".\n var fTrace = m[0] + m[4] + m[8];\n var fRoot;\n\n if ( fTrace > 0.0 ) {\n // |w| > 1/2, may as well choose w > 1/2\n fRoot = Math.sqrt(fTrace + 1.0); // 2w\n out[3] = 0.5 * fRoot;\n fRoot = 0.5/fRoot; // 1/(4w)\n out[0] = (m[5]-m[7])*fRoot;\n out[1] = (m[6]-m[2])*fRoot;\n out[2] = (m[1]-m[3])*fRoot;\n } else {\n // |w| <= 1/2\n var i = 0;\n if ( m[4] > m[0] )\n i = 1;\n if ( m[8] > m[i*3+i] )\n i = 2;\n var j = (i+1)%3;\n var k = (i+2)%3;\n \n fRoot = Math.sqrt(m[i*3+i]-m[j*3+j]-m[k*3+k] + 1.0);\n out[i] = 0.5 * fRoot;\n fRoot = 0.5 / fRoot;\n out[3] = (m[j*3+k] - m[k*3+j]) * fRoot;\n out[j] = (m[j*3+i] + m[i*3+j]) * fRoot;\n out[k] = (m[k*3+i] + m[i*3+k]) * fRoot;\n }\n \n return out;\n};\n\n/**\n * Returns a string representation of a quatenion\n *\n * @param {quat} vec vector to represent as a string\n * @returns {String} string representation of the vector\n */\nquat.str = function (a) {\n return 'quat(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' + a[3] + ')';\n};\n\nmodule.exports = quat;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/gl-matrix/src/gl-matrix/quat.js\n ** module id = 15\n ** module chunks = 0\n **/","/* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV.\n\nPermission is hereby granted, free of charge, to any person obtaining a copy\nof this software and associated documentation files (the \"Software\"), to deal\nin the Software without restriction, including without limitation the rights\nto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\ncopies of the Software, and to permit persons to whom the Software is\nfurnished to do so, subject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in\nall copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\nFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\nAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\nLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\nOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\nTHE SOFTWARE. */\n\nvar glMatrix = require(\"./common.js\");\n\n/**\n * @class 3 Dimensional Vector\n * @name vec3\n */\nvar vec3 = {};\n\n/**\n * Creates a new, empty vec3\n *\n * @returns {vec3} a new 3D vector\n */\nvec3.create = function() {\n var out = new glMatrix.ARRAY_TYPE(3);\n out[0] = 0;\n out[1] = 0;\n out[2] = 0;\n return out;\n};\n\n/**\n * Creates a new vec3 initialized with values from an existing vector\n *\n * @param {vec3} a vector to clone\n * @returns {vec3} a new 3D vector\n */\nvec3.clone = function(a) {\n var out = new glMatrix.ARRAY_TYPE(3);\n out[0] = a[0];\n out[1] = a[1];\n out[2] = a[2];\n return out;\n};\n\n/**\n * Creates a new vec3 initialized with the given values\n *\n * @param {Number} x X component\n * @param {Number} y Y component\n * @param {Number} z Z component\n * @returns {vec3} a new 3D vector\n */\nvec3.fromValues = function(x, y, z) {\n var out = new glMatrix.ARRAY_TYPE(3);\n out[0] = x;\n out[1] = y;\n out[2] = z;\n return out;\n};\n\n/**\n * Copy the values from one vec3 to another\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the source vector\n * @returns {vec3} out\n */\nvec3.copy = function(out, a) {\n out[0] = a[0];\n out[1] = a[1];\n out[2] = a[2];\n return out;\n};\n\n/**\n * Set the components of a vec3 to the given values\n *\n * @param {vec3} out the receiving vector\n * @param {Number} x X component\n * @param {Number} y Y component\n * @param {Number} z Z component\n * @returns {vec3} out\n */\nvec3.set = function(out, x, y, z) {\n out[0] = x;\n out[1] = y;\n out[2] = z;\n return out;\n};\n\n/**\n * Adds two vec3's\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @returns {vec3} out\n */\nvec3.add = function(out, a, b) {\n out[0] = a[0] + b[0];\n out[1] = a[1] + b[1];\n out[2] = a[2] + b[2];\n return out;\n};\n\n/**\n * Subtracts vector b from vector a\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @returns {vec3} out\n */\nvec3.subtract = function(out, a, b) {\n out[0] = a[0] - b[0];\n out[1] = a[1] - b[1];\n out[2] = a[2] - b[2];\n return out;\n};\n\n/**\n * Alias for {@link vec3.subtract}\n * @function\n */\nvec3.sub = vec3.subtract;\n\n/**\n * Multiplies two vec3's\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @returns {vec3} out\n */\nvec3.multiply = function(out, a, b) {\n out[0] = a[0] * b[0];\n out[1] = a[1] * b[1];\n out[2] = a[2] * b[2];\n return out;\n};\n\n/**\n * Alias for {@link vec3.multiply}\n * @function\n */\nvec3.mul = vec3.multiply;\n\n/**\n * Divides two vec3's\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @returns {vec3} out\n */\nvec3.divide = function(out, a, b) {\n out[0] = a[0] / b[0];\n out[1] = a[1] / b[1];\n out[2] = a[2] / b[2];\n return out;\n};\n\n/**\n * Alias for {@link vec3.divide}\n * @function\n */\nvec3.div = vec3.divide;\n\n/**\n * Returns the minimum of two vec3's\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @returns {vec3} out\n */\nvec3.min = function(out, a, b) {\n out[0] = Math.min(a[0], b[0]);\n out[1] = Math.min(a[1], b[1]);\n out[2] = Math.min(a[2], b[2]);\n return out;\n};\n\n/**\n * Returns the maximum of two vec3's\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @returns {vec3} out\n */\nvec3.max = function(out, a, b) {\n out[0] = Math.max(a[0], b[0]);\n out[1] = Math.max(a[1], b[1]);\n out[2] = Math.max(a[2], b[2]);\n return out;\n};\n\n/**\n * Scales a vec3 by a scalar number\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the vector to scale\n * @param {Number} b amount to scale the vector by\n * @returns {vec3} out\n */\nvec3.scale = function(out, a, b) {\n out[0] = a[0] * b;\n out[1] = a[1] * b;\n out[2] = a[2] * b;\n return out;\n};\n\n/**\n * Adds two vec3's after scaling the second operand by a scalar value\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @param {Number} scale the amount to scale b by before adding\n * @returns {vec3} out\n */\nvec3.scaleAndAdd = function(out, a, b, scale) {\n out[0] = a[0] + (b[0] * scale);\n out[1] = a[1] + (b[1] * scale);\n out[2] = a[2] + (b[2] * scale);\n return out;\n};\n\n/**\n * Calculates the euclidian distance between two vec3's\n *\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @returns {Number} distance between a and b\n */\nvec3.distance = function(a, b) {\n var x = b[0] - a[0],\n y = b[1] - a[1],\n z = b[2] - a[2];\n return Math.sqrt(x*x + y*y + z*z);\n};\n\n/**\n * Alias for {@link vec3.distance}\n * @function\n */\nvec3.dist = vec3.distance;\n\n/**\n * Calculates the squared euclidian distance between two vec3's\n *\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @returns {Number} squared distance between a and b\n */\nvec3.squaredDistance = function(a, b) {\n var x = b[0] - a[0],\n y = b[1] - a[1],\n z = b[2] - a[2];\n return x*x + y*y + z*z;\n};\n\n/**\n * Alias for {@link vec3.squaredDistance}\n * @function\n */\nvec3.sqrDist = vec3.squaredDistance;\n\n/**\n * Calculates the length of a vec3\n *\n * @param {vec3} a vector to calculate length of\n * @returns {Number} length of a\n */\nvec3.length = function (a) {\n var x = a[0],\n y = a[1],\n z = a[2];\n return Math.sqrt(x*x + y*y + z*z);\n};\n\n/**\n * Alias for {@link vec3.length}\n * @function\n */\nvec3.len = vec3.length;\n\n/**\n * Calculates the squared length of a vec3\n *\n * @param {vec3} a vector to calculate squared length of\n * @returns {Number} squared length of a\n */\nvec3.squaredLength = function (a) {\n var x = a[0],\n y = a[1],\n z = a[2];\n return x*x + y*y + z*z;\n};\n\n/**\n * Alias for {@link vec3.squaredLength}\n * @function\n */\nvec3.sqrLen = vec3.squaredLength;\n\n/**\n * Negates the components of a vec3\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a vector to negate\n * @returns {vec3} out\n */\nvec3.negate = function(out, a) {\n out[0] = -a[0];\n out[1] = -a[1];\n out[2] = -a[2];\n return out;\n};\n\n/**\n * Returns the inverse of the components of a vec3\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a vector to invert\n * @returns {vec3} out\n */\nvec3.inverse = function(out, a) {\n out[0] = 1.0 / a[0];\n out[1] = 1.0 / a[1];\n out[2] = 1.0 / a[2];\n return out;\n};\n\n/**\n * Normalize a vec3\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a vector to normalize\n * @returns {vec3} out\n */\nvec3.normalize = function(out, a) {\n var x = a[0],\n y = a[1],\n z = a[2];\n var len = x*x + y*y + z*z;\n if (len > 0) {\n //TODO: evaluate use of glm_invsqrt here?\n len = 1 / Math.sqrt(len);\n out[0] = a[0] * len;\n out[1] = a[1] * len;\n out[2] = a[2] * len;\n }\n return out;\n};\n\n/**\n * Calculates the dot product of two vec3's\n *\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @returns {Number} dot product of a and b\n */\nvec3.dot = function (a, b) {\n return a[0] * b[0] + a[1] * b[1] + a[2] * b[2];\n};\n\n/**\n * Computes the cross product of two vec3's\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @returns {vec3} out\n */\nvec3.cross = function(out, a, b) {\n var ax = a[0], ay = a[1], az = a[2],\n bx = b[0], by = b[1], bz = b[2];\n\n out[0] = ay * bz - az * by;\n out[1] = az * bx - ax * bz;\n out[2] = ax * by - ay * bx;\n return out;\n};\n\n/**\n * Performs a linear interpolation between two vec3's\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @param {Number} t interpolation amount between the two inputs\n * @returns {vec3} out\n */\nvec3.lerp = function (out, a, b, t) {\n var ax = a[0],\n ay = a[1],\n az = a[2];\n out[0] = ax + t * (b[0] - ax);\n out[1] = ay + t * (b[1] - ay);\n out[2] = az + t * (b[2] - az);\n return out;\n};\n\n/**\n * Performs a hermite interpolation with two control points\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @param {vec3} c the third operand\n * @param {vec3} d the fourth operand\n * @param {Number} t interpolation amount between the two inputs\n * @returns {vec3} out\n */\nvec3.hermite = function (out, a, b, c, d, t) {\n var factorTimes2 = t * t,\n factor1 = factorTimes2 * (2 * t - 3) + 1,\n factor2 = factorTimes2 * (t - 2) + t,\n factor3 = factorTimes2 * (t - 1),\n factor4 = factorTimes2 * (3 - 2 * t);\n \n out[0] = a[0] * factor1 + b[0] * factor2 + c[0] * factor3 + d[0] * factor4;\n out[1] = a[1] * factor1 + b[1] * factor2 + c[1] * factor3 + d[1] * factor4;\n out[2] = a[2] * factor1 + b[2] * factor2 + c[2] * factor3 + d[2] * factor4;\n \n return out;\n};\n\n/**\n * Performs a bezier interpolation with two control points\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @param {vec3} c the third operand\n * @param {vec3} d the fourth operand\n * @param {Number} t interpolation amount between the two inputs\n * @returns {vec3} out\n */\nvec3.bezier = function (out, a, b, c, d, t) {\n var inverseFactor = 1 - t,\n inverseFactorTimesTwo = inverseFactor * inverseFactor,\n factorTimes2 = t * t,\n factor1 = inverseFactorTimesTwo * inverseFactor,\n factor2 = 3 * t * inverseFactorTimesTwo,\n factor3 = 3 * factorTimes2 * inverseFactor,\n factor4 = factorTimes2 * t;\n \n out[0] = a[0] * factor1 + b[0] * factor2 + c[0] * factor3 + d[0] * factor4;\n out[1] = a[1] * factor1 + b[1] * factor2 + c[1] * factor3 + d[1] * factor4;\n out[2] = a[2] * factor1 + b[2] * factor2 + c[2] * factor3 + d[2] * factor4;\n \n return out;\n};\n\n/**\n * Generates a random vector with the given scale\n *\n * @param {vec3} out the receiving vector\n * @param {Number} [scale] Length of the resulting vector. If ommitted, a unit vector will be returned\n * @returns {vec3} out\n */\nvec3.random = function (out, scale) {\n scale = scale || 1.0;\n\n var r = glMatrix.RANDOM() * 2.0 * Math.PI;\n var z = (glMatrix.RANDOM() * 2.0) - 1.0;\n var zScale = Math.sqrt(1.0-z*z) * scale;\n\n out[0] = Math.cos(r) * zScale;\n out[1] = Math.sin(r) * zScale;\n out[2] = z * scale;\n return out;\n};\n\n/**\n * Transforms the vec3 with a mat4.\n * 4th vector component is implicitly '1'\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the vector to transform\n * @param {mat4} m matrix to transform with\n * @returns {vec3} out\n */\nvec3.transformMat4 = function(out, a, m) {\n var x = a[0], y = a[1], z = a[2],\n w = m[3] * x + m[7] * y + m[11] * z + m[15];\n w = w || 1.0;\n out[0] = (m[0] * x + m[4] * y + m[8] * z + m[12]) / w;\n out[1] = (m[1] * x + m[5] * y + m[9] * z + m[13]) / w;\n out[2] = (m[2] * x + m[6] * y + m[10] * z + m[14]) / w;\n return out;\n};\n\n/**\n * Transforms the vec3 with a mat3.\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the vector to transform\n * @param {mat4} m the 3x3 matrix to transform with\n * @returns {vec3} out\n */\nvec3.transformMat3 = function(out, a, m) {\n var x = a[0], y = a[1], z = a[2];\n out[0] = x * m[0] + y * m[3] + z * m[6];\n out[1] = x * m[1] + y * m[4] + z * m[7];\n out[2] = x * m[2] + y * m[5] + z * m[8];\n return out;\n};\n\n/**\n * Transforms the vec3 with a quat\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the vector to transform\n * @param {quat} q quaternion to transform with\n * @returns {vec3} out\n */\nvec3.transformQuat = function(out, a, q) {\n // benchmarks: http://jsperf.com/quaternion-transform-vec3-implementations\n\n var x = a[0], y = a[1], z = a[2],\n qx = q[0], qy = q[1], qz = q[2], qw = q[3],\n\n // calculate quat * vec\n ix = qw * x + qy * z - qz * y,\n iy = qw * y + qz * x - qx * z,\n iz = qw * z + qx * y - qy * x,\n iw = -qx * x - qy * y - qz * z;\n\n // calculate result * inverse quat\n out[0] = ix * qw + iw * -qx + iy * -qz - iz * -qy;\n out[1] = iy * qw + iw * -qy + iz * -qx - ix * -qz;\n out[2] = iz * qw + iw * -qz + ix * -qy - iy * -qx;\n return out;\n};\n\n/**\n * Rotate a 3D vector around the x-axis\n * @param {vec3} out The receiving vec3\n * @param {vec3} a The vec3 point to rotate\n * @param {vec3} b The origin of the rotation\n * @param {Number} c The angle of rotation\n * @returns {vec3} out\n */\nvec3.rotateX = function(out, a, b, c){\n var p = [], r=[];\n\t //Translate point to the origin\n\t p[0] = a[0] - b[0];\n\t p[1] = a[1] - b[1];\n \tp[2] = a[2] - b[2];\n\n\t //perform rotation\n\t r[0] = p[0];\n\t r[1] = p[1]*Math.cos(c) - p[2]*Math.sin(c);\n\t r[2] = p[1]*Math.sin(c) + p[2]*Math.cos(c);\n\n\t //translate to correct position\n\t out[0] = r[0] + b[0];\n\t out[1] = r[1] + b[1];\n\t out[2] = r[2] + b[2];\n\n \treturn out;\n};\n\n/**\n * Rotate a 3D vector around the y-axis\n * @param {vec3} out The receiving vec3\n * @param {vec3} a The vec3 point to rotate\n * @param {vec3} b The origin of the rotation\n * @param {Number} c The angle of rotation\n * @returns {vec3} out\n */\nvec3.rotateY = function(out, a, b, c){\n \tvar p = [], r=[];\n \t//Translate point to the origin\n \tp[0] = a[0] - b[0];\n \tp[1] = a[1] - b[1];\n \tp[2] = a[2] - b[2];\n \n \t//perform rotation\n \tr[0] = p[2]*Math.sin(c) + p[0]*Math.cos(c);\n \tr[1] = p[1];\n \tr[2] = p[2]*Math.cos(c) - p[0]*Math.sin(c);\n \n \t//translate to correct position\n \tout[0] = r[0] + b[0];\n \tout[1] = r[1] + b[1];\n \tout[2] = r[2] + b[2];\n \n \treturn out;\n};\n\n/**\n * Rotate a 3D vector around the z-axis\n * @param {vec3} out The receiving vec3\n * @param {vec3} a The vec3 point to rotate\n * @param {vec3} b The origin of the rotation\n * @param {Number} c The angle of rotation\n * @returns {vec3} out\n */\nvec3.rotateZ = function(out, a, b, c){\n \tvar p = [], r=[];\n \t//Translate point to the origin\n \tp[0] = a[0] - b[0];\n \tp[1] = a[1] - b[1];\n \tp[2] = a[2] - b[2];\n \n \t//perform rotation\n \tr[0] = p[0]*Math.cos(c) - p[1]*Math.sin(c);\n \tr[1] = p[0]*Math.sin(c) + p[1]*Math.cos(c);\n \tr[2] = p[2];\n \n \t//translate to correct position\n \tout[0] = r[0] + b[0];\n \tout[1] = r[1] + b[1];\n \tout[2] = r[2] + b[2];\n \n \treturn out;\n};\n\n/**\n * Perform some operation over an array of vec3s.\n *\n * @param {Array} a the array of vectors to iterate over\n * @param {Number} stride Number of elements between the start of each vec3. If 0 assumes tightly packed\n * @param {Number} offset Number of elements to skip at the beginning of the array\n * @param {Number} count Number of vec3s to iterate over. If 0 iterates over entire array\n * @param {Function} fn Function to call for each vector in the array\n * @param {Object} [arg] additional argument to pass to fn\n * @returns {Array} a\n * @function\n */\nvec3.forEach = (function() {\n var vec = vec3.create();\n\n return function(a, stride, offset, count, fn, arg) {\n var i, l;\n if(!stride) {\n stride = 3;\n }\n\n if(!offset) {\n offset = 0;\n }\n \n if(count) {\n l = Math.min((count * stride) + offset, a.length);\n } else {\n l = a.length;\n }\n\n for(i = offset; i < l; i += stride) {\n vec[0] = a[i]; vec[1] = a[i+1]; vec[2] = a[i+2];\n fn(vec, vec, arg);\n a[i] = vec[0]; a[i+1] = vec[1]; a[i+2] = vec[2];\n }\n \n return a;\n };\n})();\n\n/**\n * Get the angle between two 3D vectors\n * @param {vec3} a The first operand\n * @param {vec3} b The second operand\n * @returns {Number} The angle in radians\n */\nvec3.angle = function(a, b) {\n \n var tempA = vec3.fromValues(a[0], a[1], a[2]);\n var tempB = vec3.fromValues(b[0], b[1], b[2]);\n \n vec3.normalize(tempA, tempA);\n vec3.normalize(tempB, tempB);\n \n var cosine = vec3.dot(tempA, tempB);\n\n if(cosine > 1.0){\n return 0;\n } else {\n return Math.acos(cosine);\n } \n};\n\n/**\n * Returns a string representation of a vector\n *\n * @param {vec3} vec vector to represent as a string\n * @returns {String} string representation of the vector\n */\nvec3.str = function (a) {\n return 'vec3(' + a[0] + ', ' + a[1] + ', ' + a[2] + ')';\n};\n\nmodule.exports = vec3;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/gl-matrix/src/gl-matrix/vec3.js\n ** module id = 16\n ** module chunks = 0\n **/","/* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV.\n\nPermission is hereby granted, free of charge, to any person obtaining a copy\nof this software and associated documentation files (the \"Software\"), to deal\nin the Software without restriction, including without limitation the rights\nto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\ncopies of the Software, and to permit persons to whom the Software is\nfurnished to do so, subject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in\nall copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\nFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\nAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\nLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\nOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\nTHE SOFTWARE. */\n\nvar glMatrix = require(\"./common.js\");\n\n/**\n * @class 4 Dimensional Vector\n * @name vec4\n */\nvar vec4 = {};\n\n/**\n * Creates a new, empty vec4\n *\n * @returns {vec4} a new 4D vector\n */\nvec4.create = function() {\n var out = new glMatrix.ARRAY_TYPE(4);\n out[0] = 0;\n out[1] = 0;\n out[2] = 0;\n out[3] = 0;\n return out;\n};\n\n/**\n * Creates a new vec4 initialized with values from an existing vector\n *\n * @param {vec4} a vector to clone\n * @returns {vec4} a new 4D vector\n */\nvec4.clone = function(a) {\n var out = new glMatrix.ARRAY_TYPE(4);\n out[0] = a[0];\n out[1] = a[1];\n out[2] = a[2];\n out[3] = a[3];\n return out;\n};\n\n/**\n * Creates a new vec4 initialized with the given values\n *\n * @param {Number} x X component\n * @param {Number} y Y component\n * @param {Number} z Z component\n * @param {Number} w W component\n * @returns {vec4} a new 4D vector\n */\nvec4.fromValues = function(x, y, z, w) {\n var out = new glMatrix.ARRAY_TYPE(4);\n out[0] = x;\n out[1] = y;\n out[2] = z;\n out[3] = w;\n return out;\n};\n\n/**\n * Copy the values from one vec4 to another\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a the source vector\n * @returns {vec4} out\n */\nvec4.copy = function(out, a) {\n out[0] = a[0];\n out[1] = a[1];\n out[2] = a[2];\n out[3] = a[3];\n return out;\n};\n\n/**\n * Set the components of a vec4 to the given values\n *\n * @param {vec4} out the receiving vector\n * @param {Number} x X component\n * @param {Number} y Y component\n * @param {Number} z Z component\n * @param {Number} w W component\n * @returns {vec4} out\n */\nvec4.set = function(out, x, y, z, w) {\n out[0] = x;\n out[1] = y;\n out[2] = z;\n out[3] = w;\n return out;\n};\n\n/**\n * Adds two vec4's\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a the first operand\n * @param {vec4} b the second operand\n * @returns {vec4} out\n */\nvec4.add = function(out, a, b) {\n out[0] = a[0] + b[0];\n out[1] = a[1] + b[1];\n out[2] = a[2] + b[2];\n out[3] = a[3] + b[3];\n return out;\n};\n\n/**\n * Subtracts vector b from vector a\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a the first operand\n * @param {vec4} b the second operand\n * @returns {vec4} out\n */\nvec4.subtract = function(out, a, b) {\n out[0] = a[0] - b[0];\n out[1] = a[1] - b[1];\n out[2] = a[2] - b[2];\n out[3] = a[3] - b[3];\n return out;\n};\n\n/**\n * Alias for {@link vec4.subtract}\n * @function\n */\nvec4.sub = vec4.subtract;\n\n/**\n * Multiplies two vec4's\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a the first operand\n * @param {vec4} b the second operand\n * @returns {vec4} out\n */\nvec4.multiply = function(out, a, b) {\n out[0] = a[0] * b[0];\n out[1] = a[1] * b[1];\n out[2] = a[2] * b[2];\n out[3] = a[3] * b[3];\n return out;\n};\n\n/**\n * Alias for {@link vec4.multiply}\n * @function\n */\nvec4.mul = vec4.multiply;\n\n/**\n * Divides two vec4's\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a the first operand\n * @param {vec4} b the second operand\n * @returns {vec4} out\n */\nvec4.divide = function(out, a, b) {\n out[0] = a[0] / b[0];\n out[1] = a[1] / b[1];\n out[2] = a[2] / b[2];\n out[3] = a[3] / b[3];\n return out;\n};\n\n/**\n * Alias for {@link vec4.divide}\n * @function\n */\nvec4.div = vec4.divide;\n\n/**\n * Returns the minimum of two vec4's\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a the first operand\n * @param {vec4} b the second operand\n * @returns {vec4} out\n */\nvec4.min = function(out, a, b) {\n out[0] = Math.min(a[0], b[0]);\n out[1] = Math.min(a[1], b[1]);\n out[2] = Math.min(a[2], b[2]);\n out[3] = Math.min(a[3], b[3]);\n return out;\n};\n\n/**\n * Returns the maximum of two vec4's\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a the first operand\n * @param {vec4} b the second operand\n * @returns {vec4} out\n */\nvec4.max = function(out, a, b) {\n out[0] = Math.max(a[0], b[0]);\n out[1] = Math.max(a[1], b[1]);\n out[2] = Math.max(a[2], b[2]);\n out[3] = Math.max(a[3], b[3]);\n return out;\n};\n\n/**\n * Scales a vec4 by a scalar number\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a the vector to scale\n * @param {Number} b amount to scale the vector by\n * @returns {vec4} out\n */\nvec4.scale = function(out, a, b) {\n out[0] = a[0] * b;\n out[1] = a[1] * b;\n out[2] = a[2] * b;\n out[3] = a[3] * b;\n return out;\n};\n\n/**\n * Adds two vec4's after scaling the second operand by a scalar value\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a the first operand\n * @param {vec4} b the second operand\n * @param {Number} scale the amount to scale b by before adding\n * @returns {vec4} out\n */\nvec4.scaleAndAdd = function(out, a, b, scale) {\n out[0] = a[0] + (b[0] * scale);\n out[1] = a[1] + (b[1] * scale);\n out[2] = a[2] + (b[2] * scale);\n out[3] = a[3] + (b[3] * scale);\n return out;\n};\n\n/**\n * Calculates the euclidian distance between two vec4's\n *\n * @param {vec4} a the first operand\n * @param {vec4} b the second operand\n * @returns {Number} distance between a and b\n */\nvec4.distance = function(a, b) {\n var x = b[0] - a[0],\n y = b[1] - a[1],\n z = b[2] - a[2],\n w = b[3] - a[3];\n return Math.sqrt(x*x + y*y + z*z + w*w);\n};\n\n/**\n * Alias for {@link vec4.distance}\n * @function\n */\nvec4.dist = vec4.distance;\n\n/**\n * Calculates the squared euclidian distance between two vec4's\n *\n * @param {vec4} a the first operand\n * @param {vec4} b the second operand\n * @returns {Number} squared distance between a and b\n */\nvec4.squaredDistance = function(a, b) {\n var x = b[0] - a[0],\n y = b[1] - a[1],\n z = b[2] - a[2],\n w = b[3] - a[3];\n return x*x + y*y + z*z + w*w;\n};\n\n/**\n * Alias for {@link vec4.squaredDistance}\n * @function\n */\nvec4.sqrDist = vec4.squaredDistance;\n\n/**\n * Calculates the length of a vec4\n *\n * @param {vec4} a vector to calculate length of\n * @returns {Number} length of a\n */\nvec4.length = function (a) {\n var x = a[0],\n y = a[1],\n z = a[2],\n w = a[3];\n return Math.sqrt(x*x + y*y + z*z + w*w);\n};\n\n/**\n * Alias for {@link vec4.length}\n * @function\n */\nvec4.len = vec4.length;\n\n/**\n * Calculates the squared length of a vec4\n *\n * @param {vec4} a vector to calculate squared length of\n * @returns {Number} squared length of a\n */\nvec4.squaredLength = function (a) {\n var x = a[0],\n y = a[1],\n z = a[2],\n w = a[3];\n return x*x + y*y + z*z + w*w;\n};\n\n/**\n * Alias for {@link vec4.squaredLength}\n * @function\n */\nvec4.sqrLen = vec4.squaredLength;\n\n/**\n * Negates the components of a vec4\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a vector to negate\n * @returns {vec4} out\n */\nvec4.negate = function(out, a) {\n out[0] = -a[0];\n out[1] = -a[1];\n out[2] = -a[2];\n out[3] = -a[3];\n return out;\n};\n\n/**\n * Returns the inverse of the components of a vec4\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a vector to invert\n * @returns {vec4} out\n */\nvec4.inverse = function(out, a) {\n out[0] = 1.0 / a[0];\n out[1] = 1.0 / a[1];\n out[2] = 1.0 / a[2];\n out[3] = 1.0 / a[3];\n return out;\n};\n\n/**\n * Normalize a vec4\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a vector to normalize\n * @returns {vec4} out\n */\nvec4.normalize = function(out, a) {\n var x = a[0],\n y = a[1],\n z = a[2],\n w = a[3];\n var len = x*x + y*y + z*z + w*w;\n if (len > 0) {\n len = 1 / Math.sqrt(len);\n out[0] = x * len;\n out[1] = y * len;\n out[2] = z * len;\n out[3] = w * len;\n }\n return out;\n};\n\n/**\n * Calculates the dot product of two vec4's\n *\n * @param {vec4} a the first operand\n * @param {vec4} b the second operand\n * @returns {Number} dot product of a and b\n */\nvec4.dot = function (a, b) {\n return a[0] * b[0] + a[1] * b[1] + a[2] * b[2] + a[3] * b[3];\n};\n\n/**\n * Performs a linear interpolation between two vec4's\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a the first operand\n * @param {vec4} b the second operand\n * @param {Number} t interpolation amount between the two inputs\n * @returns {vec4} out\n */\nvec4.lerp = function (out, a, b, t) {\n var ax = a[0],\n ay = a[1],\n az = a[2],\n aw = a[3];\n out[0] = ax + t * (b[0] - ax);\n out[1] = ay + t * (b[1] - ay);\n out[2] = az + t * (b[2] - az);\n out[3] = aw + t * (b[3] - aw);\n return out;\n};\n\n/**\n * Generates a random vector with the given scale\n *\n * @param {vec4} out the receiving vector\n * @param {Number} [scale] Length of the resulting vector. If ommitted, a unit vector will be returned\n * @returns {vec4} out\n */\nvec4.random = function (out, scale) {\n scale = scale || 1.0;\n\n //TODO: This is a pretty awful way of doing this. Find something better.\n out[0] = glMatrix.RANDOM();\n out[1] = glMatrix.RANDOM();\n out[2] = glMatrix.RANDOM();\n out[3] = glMatrix.RANDOM();\n vec4.normalize(out, out);\n vec4.scale(out, out, scale);\n return out;\n};\n\n/**\n * Transforms the vec4 with a mat4.\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a the vector to transform\n * @param {mat4} m matrix to transform with\n * @returns {vec4} out\n */\nvec4.transformMat4 = function(out, a, m) {\n var x = a[0], y = a[1], z = a[2], w = a[3];\n out[0] = m[0] * x + m[4] * y + m[8] * z + m[12] * w;\n out[1] = m[1] * x + m[5] * y + m[9] * z + m[13] * w;\n out[2] = m[2] * x + m[6] * y + m[10] * z + m[14] * w;\n out[3] = m[3] * x + m[7] * y + m[11] * z + m[15] * w;\n return out;\n};\n\n/**\n * Transforms the vec4 with a quat\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a the vector to transform\n * @param {quat} q quaternion to transform with\n * @returns {vec4} out\n */\nvec4.transformQuat = function(out, a, q) {\n var x = a[0], y = a[1], z = a[2],\n qx = q[0], qy = q[1], qz = q[2], qw = q[3],\n\n // calculate quat * vec\n ix = qw * x + qy * z - qz * y,\n iy = qw * y + qz * x - qx * z,\n iz = qw * z + qx * y - qy * x,\n iw = -qx * x - qy * y - qz * z;\n\n // calculate result * inverse quat\n out[0] = ix * qw + iw * -qx + iy * -qz - iz * -qy;\n out[1] = iy * qw + iw * -qy + iz * -qx - ix * -qz;\n out[2] = iz * qw + iw * -qz + ix * -qy - iy * -qx;\n out[3] = a[3];\n return out;\n};\n\n/**\n * Perform some operation over an array of vec4s.\n *\n * @param {Array} a the array of vectors to iterate over\n * @param {Number} stride Number of elements between the start of each vec4. If 0 assumes tightly packed\n * @param {Number} offset Number of elements to skip at the beginning of the array\n * @param {Number} count Number of vec4s to iterate over. If 0 iterates over entire array\n * @param {Function} fn Function to call for each vector in the array\n * @param {Object} [arg] additional argument to pass to fn\n * @returns {Array} a\n * @function\n */\nvec4.forEach = (function() {\n var vec = vec4.create();\n\n return function(a, stride, offset, count, fn, arg) {\n var i, l;\n if(!stride) {\n stride = 4;\n }\n\n if(!offset) {\n offset = 0;\n }\n \n if(count) {\n l = Math.min((count * stride) + offset, a.length);\n } else {\n l = a.length;\n }\n\n for(i = offset; i < l; i += stride) {\n vec[0] = a[i]; vec[1] = a[i+1]; vec[2] = a[i+2]; vec[3] = a[i+3];\n fn(vec, vec, arg);\n a[i] = vec[0]; a[i+1] = vec[1]; a[i+2] = vec[2]; a[i+3] = vec[3];\n }\n \n return a;\n };\n})();\n\n/**\n * Returns a string representation of a vector\n *\n * @param {vec4} vec vector to represent as a string\n * @returns {String} string representation of the vector\n */\nvec4.str = function (a) {\n return 'vec4(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' + a[3] + ')';\n};\n\nmodule.exports = vec4;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/gl-matrix/src/gl-matrix/vec4.js\n ** module id = 17\n ** module chunks = 0\n **/","/* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV.\n\nPermission is hereby granted, free of charge, to any person obtaining a copy\nof this software and associated documentation files (the \"Software\"), to deal\nin the Software without restriction, including without limitation the rights\nto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\ncopies of the Software, and to permit persons to whom the Software is\nfurnished to do so, subject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in\nall copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\nFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\nAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\nLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\nOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\nTHE SOFTWARE. */\n\nvar glMatrix = require(\"./common.js\");\n\n/**\n * @class 2 Dimensional Vector\n * @name vec2\n */\nvar vec2 = {};\n\n/**\n * Creates a new, empty vec2\n *\n * @returns {vec2} a new 2D vector\n */\nvec2.create = function() {\n var out = new glMatrix.ARRAY_TYPE(2);\n out[0] = 0;\n out[1] = 0;\n return out;\n};\n\n/**\n * Creates a new vec2 initialized with values from an existing vector\n *\n * @param {vec2} a vector to clone\n * @returns {vec2} a new 2D vector\n */\nvec2.clone = function(a) {\n var out = new glMatrix.ARRAY_TYPE(2);\n out[0] = a[0];\n out[1] = a[1];\n return out;\n};\n\n/**\n * Creates a new vec2 initialized with the given values\n *\n * @param {Number} x X component\n * @param {Number} y Y component\n * @returns {vec2} a new 2D vector\n */\nvec2.fromValues = function(x, y) {\n var out = new glMatrix.ARRAY_TYPE(2);\n out[0] = x;\n out[1] = y;\n return out;\n};\n\n/**\n * Copy the values from one vec2 to another\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the source vector\n * @returns {vec2} out\n */\nvec2.copy = function(out, a) {\n out[0] = a[0];\n out[1] = a[1];\n return out;\n};\n\n/**\n * Set the components of a vec2 to the given values\n *\n * @param {vec2} out the receiving vector\n * @param {Number} x X component\n * @param {Number} y Y component\n * @returns {vec2} out\n */\nvec2.set = function(out, x, y) {\n out[0] = x;\n out[1] = y;\n return out;\n};\n\n/**\n * Adds two vec2's\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the first operand\n * @param {vec2} b the second operand\n * @returns {vec2} out\n */\nvec2.add = function(out, a, b) {\n out[0] = a[0] + b[0];\n out[1] = a[1] + b[1];\n return out;\n};\n\n/**\n * Subtracts vector b from vector a\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the first operand\n * @param {vec2} b the second operand\n * @returns {vec2} out\n */\nvec2.subtract = function(out, a, b) {\n out[0] = a[0] - b[0];\n out[1] = a[1] - b[1];\n return out;\n};\n\n/**\n * Alias for {@link vec2.subtract}\n * @function\n */\nvec2.sub = vec2.subtract;\n\n/**\n * Multiplies two vec2's\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the first operand\n * @param {vec2} b the second operand\n * @returns {vec2} out\n */\nvec2.multiply = function(out, a, b) {\n out[0] = a[0] * b[0];\n out[1] = a[1] * b[1];\n return out;\n};\n\n/**\n * Alias for {@link vec2.multiply}\n * @function\n */\nvec2.mul = vec2.multiply;\n\n/**\n * Divides two vec2's\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the first operand\n * @param {vec2} b the second operand\n * @returns {vec2} out\n */\nvec2.divide = function(out, a, b) {\n out[0] = a[0] / b[0];\n out[1] = a[1] / b[1];\n return out;\n};\n\n/**\n * Alias for {@link vec2.divide}\n * @function\n */\nvec2.div = vec2.divide;\n\n/**\n * Returns the minimum of two vec2's\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the first operand\n * @param {vec2} b the second operand\n * @returns {vec2} out\n */\nvec2.min = function(out, a, b) {\n out[0] = Math.min(a[0], b[0]);\n out[1] = Math.min(a[1], b[1]);\n return out;\n};\n\n/**\n * Returns the maximum of two vec2's\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the first operand\n * @param {vec2} b the second operand\n * @returns {vec2} out\n */\nvec2.max = function(out, a, b) {\n out[0] = Math.max(a[0], b[0]);\n out[1] = Math.max(a[1], b[1]);\n return out;\n};\n\n/**\n * Scales a vec2 by a scalar number\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the vector to scale\n * @param {Number} b amount to scale the vector by\n * @returns {vec2} out\n */\nvec2.scale = function(out, a, b) {\n out[0] = a[0] * b;\n out[1] = a[1] * b;\n return out;\n};\n\n/**\n * Adds two vec2's after scaling the second operand by a scalar value\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the first operand\n * @param {vec2} b the second operand\n * @param {Number} scale the amount to scale b by before adding\n * @returns {vec2} out\n */\nvec2.scaleAndAdd = function(out, a, b, scale) {\n out[0] = a[0] + (b[0] * scale);\n out[1] = a[1] + (b[1] * scale);\n return out;\n};\n\n/**\n * Calculates the euclidian distance between two vec2's\n *\n * @param {vec2} a the first operand\n * @param {vec2} b the second operand\n * @returns {Number} distance between a and b\n */\nvec2.distance = function(a, b) {\n var x = b[0] - a[0],\n y = b[1] - a[1];\n return Math.sqrt(x*x + y*y);\n};\n\n/**\n * Alias for {@link vec2.distance}\n * @function\n */\nvec2.dist = vec2.distance;\n\n/**\n * Calculates the squared euclidian distance between two vec2's\n *\n * @param {vec2} a the first operand\n * @param {vec2} b the second operand\n * @returns {Number} squared distance between a and b\n */\nvec2.squaredDistance = function(a, b) {\n var x = b[0] - a[0],\n y = b[1] - a[1];\n return x*x + y*y;\n};\n\n/**\n * Alias for {@link vec2.squaredDistance}\n * @function\n */\nvec2.sqrDist = vec2.squaredDistance;\n\n/**\n * Calculates the length of a vec2\n *\n * @param {vec2} a vector to calculate length of\n * @returns {Number} length of a\n */\nvec2.length = function (a) {\n var x = a[0],\n y = a[1];\n return Math.sqrt(x*x + y*y);\n};\n\n/**\n * Alias for {@link vec2.length}\n * @function\n */\nvec2.len = vec2.length;\n\n/**\n * Calculates the squared length of a vec2\n *\n * @param {vec2} a vector to calculate squared length of\n * @returns {Number} squared length of a\n */\nvec2.squaredLength = function (a) {\n var x = a[0],\n y = a[1];\n return x*x + y*y;\n};\n\n/**\n * Alias for {@link vec2.squaredLength}\n * @function\n */\nvec2.sqrLen = vec2.squaredLength;\n\n/**\n * Negates the components of a vec2\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a vector to negate\n * @returns {vec2} out\n */\nvec2.negate = function(out, a) {\n out[0] = -a[0];\n out[1] = -a[1];\n return out;\n};\n\n/**\n * Returns the inverse of the components of a vec2\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a vector to invert\n * @returns {vec2} out\n */\nvec2.inverse = function(out, a) {\n out[0] = 1.0 / a[0];\n out[1] = 1.0 / a[1];\n return out;\n};\n\n/**\n * Normalize a vec2\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a vector to normalize\n * @returns {vec2} out\n */\nvec2.normalize = function(out, a) {\n var x = a[0],\n y = a[1];\n var len = x*x + y*y;\n if (len > 0) {\n //TODO: evaluate use of glm_invsqrt here?\n len = 1 / Math.sqrt(len);\n out[0] = a[0] * len;\n out[1] = a[1] * len;\n }\n return out;\n};\n\n/**\n * Calculates the dot product of two vec2's\n *\n * @param {vec2} a the first operand\n * @param {vec2} b the second operand\n * @returns {Number} dot product of a and b\n */\nvec2.dot = function (a, b) {\n return a[0] * b[0] + a[1] * b[1];\n};\n\n/**\n * Computes the cross product of two vec2's\n * Note that the cross product must by definition produce a 3D vector\n *\n * @param {vec3} out the receiving vector\n * @param {vec2} a the first operand\n * @param {vec2} b the second operand\n * @returns {vec3} out\n */\nvec2.cross = function(out, a, b) {\n var z = a[0] * b[1] - a[1] * b[0];\n out[0] = out[1] = 0;\n out[2] = z;\n return out;\n};\n\n/**\n * Performs a linear interpolation between two vec2's\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the first operand\n * @param {vec2} b the second operand\n * @param {Number} t interpolation amount between the two inputs\n * @returns {vec2} out\n */\nvec2.lerp = function (out, a, b, t) {\n var ax = a[0],\n ay = a[1];\n out[0] = ax + t * (b[0] - ax);\n out[1] = ay + t * (b[1] - ay);\n return out;\n};\n\n/**\n * Generates a random vector with the given scale\n *\n * @param {vec2} out the receiving vector\n * @param {Number} [scale] Length of the resulting vector. If ommitted, a unit vector will be returned\n * @returns {vec2} out\n */\nvec2.random = function (out, scale) {\n scale = scale || 1.0;\n var r = glMatrix.RANDOM() * 2.0 * Math.PI;\n out[0] = Math.cos(r) * scale;\n out[1] = Math.sin(r) * scale;\n return out;\n};\n\n/**\n * Transforms the vec2 with a mat2\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the vector to transform\n * @param {mat2} m matrix to transform with\n * @returns {vec2} out\n */\nvec2.transformMat2 = function(out, a, m) {\n var x = a[0],\n y = a[1];\n out[0] = m[0] * x + m[2] * y;\n out[1] = m[1] * x + m[3] * y;\n return out;\n};\n\n/**\n * Transforms the vec2 with a mat2d\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the vector to transform\n * @param {mat2d} m matrix to transform with\n * @returns {vec2} out\n */\nvec2.transformMat2d = function(out, a, m) {\n var x = a[0],\n y = a[1];\n out[0] = m[0] * x + m[2] * y + m[4];\n out[1] = m[1] * x + m[3] * y + m[5];\n return out;\n};\n\n/**\n * Transforms the vec2 with a mat3\n * 3rd vector component is implicitly '1'\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the vector to transform\n * @param {mat3} m matrix to transform with\n * @returns {vec2} out\n */\nvec2.transformMat3 = function(out, a, m) {\n var x = a[0],\n y = a[1];\n out[0] = m[0] * x + m[3] * y + m[6];\n out[1] = m[1] * x + m[4] * y + m[7];\n return out;\n};\n\n/**\n * Transforms the vec2 with a mat4\n * 3rd vector component is implicitly '0'\n * 4th vector component is implicitly '1'\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the vector to transform\n * @param {mat4} m matrix to transform with\n * @returns {vec2} out\n */\nvec2.transformMat4 = function(out, a, m) {\n var x = a[0], \n y = a[1];\n out[0] = m[0] * x + m[4] * y + m[12];\n out[1] = m[1] * x + m[5] * y + m[13];\n return out;\n};\n\n/**\n * Perform some operation over an array of vec2s.\n *\n * @param {Array} a the array of vectors to iterate over\n * @param {Number} stride Number of elements between the start of each vec2. If 0 assumes tightly packed\n * @param {Number} offset Number of elements to skip at the beginning of the array\n * @param {Number} count Number of vec2s to iterate over. If 0 iterates over entire array\n * @param {Function} fn Function to call for each vector in the array\n * @param {Object} [arg] additional argument to pass to fn\n * @returns {Array} a\n * @function\n */\nvec2.forEach = (function() {\n var vec = vec2.create();\n\n return function(a, stride, offset, count, fn, arg) {\n var i, l;\n if(!stride) {\n stride = 2;\n }\n\n if(!offset) {\n offset = 0;\n }\n \n if(count) {\n l = Math.min((count * stride) + offset, a.length);\n } else {\n l = a.length;\n }\n\n for(i = offset; i < l; i += stride) {\n vec[0] = a[i]; vec[1] = a[i+1];\n fn(vec, vec, arg);\n a[i] = vec[0]; a[i+1] = vec[1];\n }\n \n return a;\n };\n})();\n\n/**\n * Returns a string representation of a vector\n *\n * @param {vec2} vec vector to represent as a string\n * @returns {String} string representation of the vector\n */\nvec2.str = function (a) {\n return 'vec2(' + a[0] + ', ' + a[1] + ')';\n};\n\nmodule.exports = vec2;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/gl-matrix/src/gl-matrix/vec2.js\n ** module id = 18\n ** module chunks = 0\n **/","export default {\n init: function(arr, val) {\n var l = arr.length;\n while (l--) {\n arr[l] = val;\n }\n },\n\n /**\n * Shuffles the content of an array\n * @return {Array} the array itself shuffled\n */\n shuffle: function(arr) {\n var i = arr.length - 1, j, x;\n for (i; i >= 0; i--) {\n j = Math.floor(Math.random() * i);\n x = arr[i];\n arr[i] = arr[j];\n arr[j] = x;\n }\n return arr;\n },\n\n toPointList: function(arr) {\n var i, j, row = [], rows = [];\n for ( i = 0; i < arr.length; i++) {\n row = [];\n for ( j = 0; j < arr[i].length; j++) {\n row[j] = arr[i][j];\n }\n rows[i] = \"[\" + row.join(\",\") + \"]\";\n }\n return \"[\" + rows.join(\",\\r\\n\") + \"]\";\n },\n\n /**\n * returns the elements which's score is bigger than the threshold\n * @return {Array} the reduced array\n */\n threshold: function(arr, threshold, scoreFunc) {\n var i, queue = [];\n for ( i = 0; i < arr.length; i++) {\n if (scoreFunc.apply(arr, [arr[i]]) >= threshold) {\n queue.push(arr[i]);\n }\n }\n return queue;\n },\n\n maxIndex: function(arr) {\n var i, max = 0;\n for ( i = 0; i < arr.length; i++) {\n if (arr[i] > arr[max]) {\n max = i;\n }\n }\n return max;\n },\n\n max: function(arr) {\n var i, max = 0;\n for ( i = 0; i < arr.length; i++) {\n if (arr[i] > max) {\n max = arr[i];\n }\n }\n return max;\n },\n\n sum: function(arr) {\n var length = arr.length,\n sum = 0;\n\n while (length--) {\n sum += arr[length];\n }\n return sum;\n }\n};\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/array_helper.js\n **/","import ImageWrapper from './image_wrapper';\nimport CVUtils from './cv_utils';\nimport Rasterizer from './rasterizer';\nimport Tracer from './tracer';\nimport skeletonizer from './skeletonizer';\nimport ArrayHelper from './array_helper';\nimport ImageDebug from './image_debug';\nimport glMatrix from 'gl-matrix';\n\nvar _config,\n _currentImageWrapper,\n _skelImageWrapper,\n _subImageWrapper,\n _labelImageWrapper,\n _patchGrid,\n _patchLabelGrid,\n _imageToPatchGrid,\n _binaryImageWrapper,\n _patchSize,\n _canvasContainer = {\n ctx: {\n binary: null\n },\n dom: {\n binary: null\n }\n },\n _numPatches = {x: 0, y: 0},\n _inputImageWrapper,\n _skeletonizer,\n vec2 = glMatrix.vec2,\n mat2 = glMatrix.mat2,\n self = (typeof window !== 'undefined') ? window : self;\n\nfunction initBuffers() {\n var skeletonImageData;\n\n if (_config.halfSample) {\n _currentImageWrapper = new ImageWrapper({\n x: _inputImageWrapper.size.x / 2 | 0,\n y: _inputImageWrapper.size.y / 2 | 0\n });\n } else {\n _currentImageWrapper = _inputImageWrapper;\n }\n\n _patchSize = CVUtils.calculatePatchSize(_config.patchSize, _currentImageWrapper.size);\n\n _numPatches.x = _currentImageWrapper.size.x / _patchSize.x | 0;\n _numPatches.y = _currentImageWrapper.size.y / _patchSize.y | 0;\n\n _binaryImageWrapper = new ImageWrapper(_currentImageWrapper.size, undefined, Uint8Array, false);\n\n _labelImageWrapper = new ImageWrapper(_patchSize, undefined, Array, true);\n\n skeletonImageData = new ArrayBuffer(64 * 1024);\n _subImageWrapper = new ImageWrapper(_patchSize,\n new Uint8Array(skeletonImageData, 0, _patchSize.x * _patchSize.y));\n _skelImageWrapper = new ImageWrapper(_patchSize,\n new Uint8Array(skeletonImageData, _patchSize.x * _patchSize.y * 3, _patchSize.x * _patchSize.y),\n undefined, true);\n _skeletonizer = skeletonizer(self, {\n size: _patchSize.x\n }, skeletonImageData);\n\n _imageToPatchGrid = new ImageWrapper({\n x: (_currentImageWrapper.size.x / _subImageWrapper.size.x) | 0,\n y: (_currentImageWrapper.size.y / _subImageWrapper.size.y) | 0\n }, undefined, Array, true);\n _patchGrid = new ImageWrapper(_imageToPatchGrid.size, undefined, undefined, true);\n _patchLabelGrid = new ImageWrapper(_imageToPatchGrid.size, undefined, Int32Array, true);\n}\n\nfunction initCanvas() {\n if (_config.useWorker || typeof document === 'undefined') {\n return;\n }\n _canvasContainer.dom.binary = document.createElement(\"canvas\");\n _canvasContainer.dom.binary.className = \"binaryBuffer\";\n if (_config.showCanvas === true) {\n document.querySelector(\"#debug\").appendChild(_canvasContainer.dom.binary);\n }\n _canvasContainer.ctx.binary = _canvasContainer.dom.binary.getContext(\"2d\");\n _canvasContainer.dom.binary.width = _binaryImageWrapper.size.x;\n _canvasContainer.dom.binary.height = _binaryImageWrapper.size.y;\n}\n\n/**\n * Creates a bounding box which encloses all the given patches\n * @returns {Array} The minimal bounding box\n */\nfunction boxFromPatches(patches) {\n var overAvg,\n i,\n j,\n patch,\n transMat,\n minx =\n _binaryImageWrapper.size.x,\n miny = _binaryImageWrapper.size.y,\n maxx = -_binaryImageWrapper.size.x,\n maxy = -_binaryImageWrapper.size.y,\n box,\n scale;\n\n // draw all patches which are to be taken into consideration\n overAvg = 0;\n for ( i = 0; i < patches.length; i++) {\n patch = patches[i];\n overAvg += patch.rad;\n if (_config.showPatches) {\n ImageDebug.drawRect(patch.pos, _subImageWrapper.size, _canvasContainer.ctx.binary, {color: \"red\"});\n }\n }\n\n overAvg /= patches.length;\n overAvg = (overAvg * 180 / Math.PI + 90) % 180 - 90;\n if (overAvg < 0) {\n overAvg += 180;\n }\n\n overAvg = (180 - overAvg) * Math.PI / 180;\n transMat = mat2.clone([Math.cos(overAvg), Math.sin(overAvg), -Math.sin(overAvg), Math.cos(overAvg)]);\n\n // iterate over patches and rotate by angle\n for ( i = 0; i < patches.length; i++) {\n patch = patches[i];\n for ( j = 0; j < 4; j++) {\n vec2.transformMat2(patch.box[j], patch.box[j], transMat);\n }\n\n if (_config.boxFromPatches.showTransformed) {\n ImageDebug.drawPath(patch.box, {x: 0, y: 1}, _canvasContainer.ctx.binary, {color: '#99ff00', lineWidth: 2});\n }\n }\n\n // find bounding box\n for ( i = 0; i < patches.length; i++) {\n patch = patches[i];\n for ( j = 0; j < 4; j++) {\n if (patch.box[j][0] < minx) {\n minx = patch.box[j][0];\n }\n if (patch.box[j][0] > maxx) {\n maxx = patch.box[j][0];\n }\n if (patch.box[j][1] < miny) {\n miny = patch.box[j][1];\n }\n if (patch.box[j][1] > maxy) {\n maxy = patch.box[j][1];\n }\n }\n }\n\n box = [[minx, miny], [maxx, miny], [maxx, maxy], [minx, maxy]];\n\n if (_config.boxFromPatches.showTransformedBox) {\n ImageDebug.drawPath(box, {x: 0, y: 1}, _canvasContainer.ctx.binary, {color: '#ff0000', lineWidth: 2});\n }\n\n scale = _config.halfSample ? 2 : 1;\n // reverse rotation;\n transMat = mat2.invert(transMat, transMat);\n for ( j = 0; j < 4; j++) {\n vec2.transformMat2(box[j], box[j], transMat);\n }\n\n if (_config.boxFromPatches.showBB) {\n ImageDebug.drawPath(box, {x: 0, y: 1}, _canvasContainer.ctx.binary, {color: '#ff0000', lineWidth: 2});\n }\n\n for ( j = 0; j < 4; j++) {\n vec2.scale(box[j], box[j], scale);\n }\n\n return box;\n}\n\n/**\n * Creates a binary image of the current image\n */\nfunction binarizeImage() {\n CVUtils.otsuThreshold(_currentImageWrapper, _binaryImageWrapper);\n _binaryImageWrapper.zeroBorder();\n if (_config.showCanvas) {\n _binaryImageWrapper.show(_canvasContainer.dom.binary, 255);\n }\n}\n\n/**\n * Iterate over the entire image\n * extract patches\n */\nfunction findPatches() {\n var i,\n j,\n x,\n y,\n moments,\n patchesFound = [],\n rasterizer,\n rasterResult,\n patch;\n for (i = 0; i < _numPatches.x; i++) {\n for (j = 0; j < _numPatches.y; j++) {\n x = _subImageWrapper.size.x * i;\n y = _subImageWrapper.size.y * j;\n\n // seperate parts\n skeletonize(x, y);\n\n // Rasterize, find individual bars\n _skelImageWrapper.zeroBorder();\n ArrayHelper.init(_labelImageWrapper.data, 0);\n rasterizer = Rasterizer.create(_skelImageWrapper, _labelImageWrapper);\n rasterResult = rasterizer.rasterize(0);\n\n if (_config.showLabels) {\n _labelImageWrapper.overlay(_canvasContainer.dom.binary, Math.floor(360 / rasterResult.count),\n {x: x, y: y});\n }\n\n // calculate moments from the skeletonized patch\n moments = _labelImageWrapper.moments(rasterResult.count);\n\n // extract eligible patches\n patchesFound = patchesFound.concat(describePatch(moments, [i, j], x, y));\n }\n }\n\n if (_config.showFoundPatches) {\n for ( i = 0; i < patchesFound.length; i++) {\n patch = patchesFound[i];\n ImageDebug.drawRect(patch.pos, _subImageWrapper.size, _canvasContainer.ctx.binary,\n {color: \"#99ff00\", lineWidth: 2});\n }\n }\n\n return patchesFound;\n}\n\n/**\n * Finds those connected areas which contain at least 6 patches\n * and returns them ordered DESC by the number of contained patches\n * @param {Number} maxLabel\n */\nfunction findBiggestConnectedAreas(maxLabel){\n var i,\n sum,\n labelHist = [],\n topLabels = [];\n\n for ( i = 0; i < maxLabel; i++) {\n labelHist.push(0);\n }\n sum = _patchLabelGrid.data.length;\n while (sum--) {\n if (_patchLabelGrid.data[sum] > 0) {\n labelHist[_patchLabelGrid.data[sum] - 1]++;\n }\n }\n\n labelHist = labelHist.map(function(val, idx) {\n return {\n val: val,\n label: idx + 1\n };\n });\n\n labelHist.sort(function(a, b) {\n return b.val - a.val;\n });\n\n // extract top areas with at least 6 patches present\n topLabels = labelHist.filter(function(el) {\n return el.val >= 5;\n });\n\n return topLabels;\n}\n\n/**\n *\n */\nfunction findBoxes(topLabels, maxLabel) {\n var i,\n j,\n sum,\n patches = [],\n patch,\n box,\n boxes = [],\n hsv = [0, 1, 1],\n rgb = [0, 0, 0];\n\n for ( i = 0; i < topLabels.length; i++) {\n sum = _patchLabelGrid.data.length;\n patches.length = 0;\n while (sum--) {\n if (_patchLabelGrid.data[sum] === topLabels[i].label) {\n patch = _imageToPatchGrid.data[sum];\n patches.push(patch);\n }\n }\n box = boxFromPatches(patches);\n if (box) {\n boxes.push(box);\n\n // draw patch-labels if requested\n if (_config.showRemainingPatchLabels) {\n for ( j = 0; j < patches.length; j++) {\n patch = patches[j];\n hsv[0] = (topLabels[i].label / (maxLabel + 1)) * 360;\n CVUtils.hsv2rgb(hsv, rgb);\n ImageDebug.drawRect(patch.pos, _subImageWrapper.size, _canvasContainer.ctx.binary,\n {color: \"rgb(\" + rgb.join(\",\") + \")\", lineWidth: 2});\n }\n }\n }\n }\n return boxes;\n}\n\n/**\n * Find similar moments (via cluster)\n * @param {Object} moments\n */\nfunction similarMoments(moments) {\n var clusters = CVUtils.cluster(moments, 0.90);\n var topCluster = CVUtils.topGeneric(clusters, 1, function(e) {\n return e.getPoints().length;\n });\n var points = [], result = [];\n if (topCluster.length === 1) {\n points = topCluster[0].item.getPoints();\n for (var i = 0; i < points.length; i++) {\n result.push(points[i].point);\n }\n }\n return result;\n}\n\nfunction skeletonize(x, y) {\n _binaryImageWrapper.subImageAsCopy(_subImageWrapper, CVUtils.imageRef(x, y));\n _skeletonizer.skeletonize();\n\n // Show skeleton if requested\n if (_config.showSkeleton) {\n _skelImageWrapper.overlay(_canvasContainer.dom.binary, 360, CVUtils.imageRef(x, y));\n }\n}\n\n/**\n * Extracts and describes those patches which seem to contain a barcode pattern\n * @param {Array} moments\n * @param {Object} patchPos,\n * @param {Number} x\n * @param {Number} y\n * @returns {Array} list of patches\n */\nfunction describePatch(moments, patchPos, x, y) {\n var k,\n avg,\n eligibleMoments = [],\n matchingMoments,\n patch,\n patchesFound = [],\n minComponentWeight = Math.ceil(_patchSize.x / 3);\n\n if (moments.length >= 2) {\n // only collect moments which's area covers at least minComponentWeight pixels.\n for ( k = 0; k < moments.length; k++) {\n if (moments[k].m00 > minComponentWeight) {\n eligibleMoments.push(moments[k]);\n }\n }\n\n // if at least 2 moments are found which have at least minComponentWeights covered\n if (eligibleMoments.length >= 2) {\n matchingMoments = similarMoments(eligibleMoments);\n avg = 0;\n // determine the similarity of the moments\n for ( k = 0; k < matchingMoments.length; k++) {\n avg += matchingMoments[k].rad;\n }\n\n // Only two of the moments are allowed not to fit into the equation\n // add the patch to the set\n if (matchingMoments.length > 1\n && matchingMoments.length >= (eligibleMoments.length / 4) * 3\n && matchingMoments.length > moments.length / 4) {\n avg /= matchingMoments.length;\n patch = {\n index: patchPos[1] * _numPatches.x + patchPos[0],\n pos: {\n x: x,\n y: y\n },\n box: [\n vec2.clone([x, y]),\n vec2.clone([x + _subImageWrapper.size.x, y]),\n vec2.clone([x + _subImageWrapper.size.x, y + _subImageWrapper.size.y]),\n vec2.clone([x, y + _subImageWrapper.size.y])\n ],\n moments: matchingMoments,\n rad: avg,\n vec: vec2.clone([Math.cos(avg), Math.sin(avg)])\n };\n patchesFound.push(patch);\n }\n }\n }\n return patchesFound;\n}\n\n/**\n * finds patches which are connected and share the same orientation\n * @param {Object} patchesFound\n */\nfunction rasterizeAngularSimilarity(patchesFound) {\n var label = 0,\n threshold = 0.95,\n currIdx = 0,\n j,\n patch,\n hsv = [0, 1, 1],\n rgb = [0, 0, 0];\n\n function notYetProcessed() {\n var i;\n for ( i = 0; i < _patchLabelGrid.data.length; i++) {\n if (_patchLabelGrid.data[i] === 0 && _patchGrid.data[i] === 1) {\n return i;\n }\n }\n return _patchLabelGrid.length;\n }\n\n function trace(currentIdx) {\n var x,\n y,\n currentPatch,\n patch,\n idx,\n dir,\n current = {\n x: currentIdx % _patchLabelGrid.size.x,\n y: (currentIdx / _patchLabelGrid.size.x) | 0\n },\n similarity;\n\n if (currentIdx < _patchLabelGrid.data.length) {\n currentPatch = _imageToPatchGrid.data[currentIdx];\n // assign label\n _patchLabelGrid.data[currentIdx] = label;\n for ( dir = 0; dir < Tracer.searchDirections.length; dir++) {\n y = current.y + Tracer.searchDirections[dir][0];\n x = current.x + Tracer.searchDirections[dir][1];\n idx = y * _patchLabelGrid.size.x + x;\n\n // continue if patch empty\n if (_patchGrid.data[idx] === 0) {\n _patchLabelGrid.data[idx] = Number.MAX_VALUE;\n continue;\n }\n\n patch = _imageToPatchGrid.data[idx];\n if (_patchLabelGrid.data[idx] === 0) {\n similarity = Math.abs(vec2.dot(patch.vec, currentPatch.vec));\n if (similarity > threshold) {\n trace(idx);\n }\n }\n }\n }\n }\n\n // prepare for finding the right patches\n ArrayHelper.init(_patchGrid.data, 0);\n ArrayHelper.init(_patchLabelGrid.data, 0);\n ArrayHelper.init(_imageToPatchGrid.data, null);\n\n for ( j = 0; j < patchesFound.length; j++) {\n patch = patchesFound[j];\n _imageToPatchGrid.data[patch.index] = patch;\n _patchGrid.data[patch.index] = 1;\n }\n\n // rasterize the patches found to determine area\n _patchGrid.zeroBorder();\n\n while (( currIdx = notYetProcessed()) < _patchLabelGrid.data.length) {\n label++;\n trace(currIdx);\n }\n\n // draw patch-labels if requested\n if (_config.showPatchLabels) {\n for ( j = 0; j < _patchLabelGrid.data.length; j++) {\n if (_patchLabelGrid.data[j] > 0 && _patchLabelGrid.data[j] <= label) {\n patch = _imageToPatchGrid.data[j];\n hsv[0] = (_patchLabelGrid.data[j] / (label + 1)) * 360;\n CVUtils.hsv2rgb(hsv, rgb);\n ImageDebug.drawRect(patch.pos, _subImageWrapper.size, _canvasContainer.ctx.binary,\n {color: \"rgb(\" + rgb.join(\",\") + \")\", lineWidth: 2});\n }\n }\n }\n\n return label;\n}\n\nexport default {\n init: function(inputImageWrapper, config) {\n _config = config;\n _inputImageWrapper = inputImageWrapper;\n\n initBuffers();\n initCanvas();\n },\n\n locate: function() {\n var patchesFound,\n topLabels,\n boxes;\n\n if (_config.halfSample) {\n CVUtils.halfSample(_inputImageWrapper, _currentImageWrapper);\n }\n\n binarizeImage();\n patchesFound = findPatches();\n // return unless 5% or more patches are found\n if (patchesFound.length < _numPatches.x * _numPatches.y * 0.05) {\n return null;\n }\n\n // rasterrize area by comparing angular similarity;\n var maxLabel = rasterizeAngularSimilarity(patchesFound);\n if (maxLabel < 1) {\n return null;\n }\n\n // search for area with the most patches (biggest connected area)\n topLabels = findBiggestConnectedAreas(maxLabel);\n if (topLabels.length === 0) {\n return null;\n }\n\n boxes = findBoxes(topLabels, maxLabel);\n return boxes;\n },\n\n checkImageConstraints: function(inputStream, config) {\n var patchSize,\n width = inputStream.getWidth(),\n height = inputStream.getHeight(),\n halfSample = config.halfSample ? 0.5 : 1,\n size,\n area;\n\n // calculate width and height based on area\n if (inputStream.getConfig().area) {\n area = CVUtils.computeImageArea(width, height, inputStream.getConfig().area);\n inputStream.setTopRight({x: area.sx, y: area.sy});\n inputStream.setCanvasSize({x: width, y: height});\n width = area.sw;\n height = area.sh;\n }\n\n size = {\n x: Math.floor(width * halfSample),\n y: Math.floor(height * halfSample)\n };\n\n patchSize = CVUtils.calculatePatchSize(config.patchSize, size);\n console.log(\"Patch-Size: \" + JSON.stringify(patchSize));\n\n inputStream.setWidth(Math.floor(Math.floor(size.x / patchSize.x) * (1 / halfSample) * patchSize.x));\n inputStream.setHeight(Math.floor(Math.floor(size.y / patchSize.y) * (1 / halfSample) * patchSize.y));\n\n if ((inputStream.getWidth() % patchSize.x) === 0 && (inputStream.getHeight() % patchSize.y) === 0) {\n return true;\n }\n\n throw new Error(\"Image dimensions do not comply with the current settings: Width (\" +\n width + \" )and height (\" + height +\n \") must a multiple of \" + patchSize.x);\n }\n};\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/barcode_locator.js\n **/","import Tracer from './tracer';\n\n/**\n * http://www.codeproject.com/Tips/407172/Connected-Component-Labeling-and-Vectorization\n */\nvar Rasterizer = {\n createContour2D : function() {\n return {\n dir : null,\n index : null,\n firstVertex : null,\n insideContours : null,\n nextpeer : null,\n prevpeer : null\n };\n },\n CONTOUR_DIR : {\n CW_DIR : 0,\n CCW_DIR : 1,\n UNKNOWN_DIR : 2\n },\n DIR : {\n OUTSIDE_EDGE : -32767,\n INSIDE_EDGE : -32766\n },\n create : function(imageWrapper, labelWrapper) {\n var imageData = imageWrapper.data,\n labelData = labelWrapper.data,\n width = imageWrapper.size.x,\n height = imageWrapper.size.y,\n tracer = Tracer.create(imageWrapper, labelWrapper);\n\n return {\n rasterize : function(depthlabel) {\n var color,\n bc,\n lc,\n labelindex,\n cx,\n cy,\n colorMap = [],\n vertex,\n p,\n cc,\n sc,\n pos,\n connectedCount = 0,\n i;\n\n for ( i = 0; i < 400; i++) {\n colorMap[i] = 0;\n }\n\n colorMap[0] = imageData[0];\n cc = null;\n for ( cy = 1; cy < height - 1; cy++) {\n labelindex = 0;\n bc = colorMap[0];\n for ( cx = 1; cx < width - 1; cx++) {\n pos = cy * width + cx;\n if (labelData[pos] === 0) {\n color = imageData[pos];\n if (color !== bc) {\n if (labelindex === 0) {\n lc = connectedCount + 1;\n colorMap[lc] = color;\n bc = color;\n vertex = tracer.contourTracing(cy, cx, lc, color, Rasterizer.DIR.OUTSIDE_EDGE);\n if (vertex !== null) {\n connectedCount++;\n labelindex = lc;\n p = Rasterizer.createContour2D();\n p.dir = Rasterizer.CONTOUR_DIR.CW_DIR;\n p.index = labelindex;\n p.firstVertex = vertex;\n p.nextpeer = cc;\n p.insideContours = null;\n if (cc !== null) {\n cc.prevpeer = p;\n }\n cc = p;\n }\n } else {\n vertex = tracer.contourTracing(cy, cx, Rasterizer.DIR.INSIDE_EDGE, color, labelindex);\n if (vertex !== null) {\n p = Rasterizer.createContour2D();\n p.firstVertex = vertex;\n p.insideContours = null;\n if (depthlabel === 0) {\n p.dir = Rasterizer.CONTOUR_DIR.CCW_DIR;\n } else {\n p.dir = Rasterizer.CONTOUR_DIR.CW_DIR;\n }\n p.index = depthlabel;\n sc = cc;\n while ((sc !== null) && sc.index !== labelindex) {\n sc = sc.nextpeer;\n }\n if (sc !== null) {\n p.nextpeer = sc.insideContours;\n if (sc.insideContours !== null) {\n sc.insideContours.prevpeer = p;\n }\n sc.insideContours = p;\n }\n }\n }\n } else {\n labelData[pos] = labelindex;\n }\n } else if (labelData[pos] === Rasterizer.DIR.OUTSIDE_EDGE || labelData[pos] === Rasterizer.DIR.INSIDE_EDGE) {\n labelindex = 0;\n if (labelData[pos] === Rasterizer.DIR.INSIDE_EDGE) {\n bc = imageData[pos];\n } else {\n bc = colorMap[0];\n }\n } else {\n labelindex = labelData[pos];\n bc = colorMap[labelindex];\n }\n }\n }\n sc = cc;\n while (sc !== null) {\n sc.index = depthlabel;\n sc = sc.nextpeer;\n }\n return {\n cc : cc,\n count : connectedCount\n };\n },\n debug: {\n drawContour : function(canvas, firstContour) {\n var ctx = canvas.getContext(\"2d\"),\n pq = firstContour,\n iq,\n q,\n p;\n\n ctx.strokeStyle = \"red\";\n ctx.fillStyle = \"red\";\n ctx.lineWidth = 1;\n\n if (pq !== null) {\n iq = pq.insideContours;\n } else {\n iq = null;\n }\n\n while (pq !== null) {\n if (iq !== null) {\n q = iq;\n iq = iq.nextpeer;\n } else {\n q = pq;\n pq = pq.nextpeer;\n if (pq !== null) {\n iq = pq.insideContours;\n } else {\n iq = null;\n }\n }\n\n switch(q.dir) {\n case Rasterizer.CONTOUR_DIR.CW_DIR:\n ctx.strokeStyle = \"red\";\n break;\n case Rasterizer.CONTOUR_DIR.CCW_DIR:\n ctx.strokeStyle = \"blue\";\n break;\n case Rasterizer.CONTOUR_DIR.UNKNOWN_DIR:\n ctx.strokeStyle = \"green\";\n break;\n }\n\n p = q.firstVertex;\n ctx.beginPath();\n ctx.moveTo(p.x, p.y);\n do {\n p = p.next;\n ctx.lineTo(p.x, p.y);\n } while(p !== q.firstVertex);\n ctx.stroke();\n }\n }\n }\n };\n }\n};\n\nexport default Rasterizer;\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/rasterizer.js\n **/","/**\n * http://www.codeproject.com/Tips/407172/Connected-Component-Labeling-and-Vectorization\n */\nvar Tracer = {\n searchDirections : [[0, 1], [1, 1], [1, 0], [1, -1], [0, -1], [-1, -1], [-1, 0], [-1, 1]],\n create : function(imageWrapper, labelWrapper) {\n var imageData = imageWrapper.data,\n labelData = labelWrapper.data,\n searchDirections = this.searchDirections,\n width = imageWrapper.size.x,\n pos;\n\n function trace(current, color, label, edgelabel) {\n var i,\n y,\n x;\n\n for ( i = 0; i < 7; i++) {\n y = current.cy + searchDirections[current.dir][0];\n x = current.cx + searchDirections[current.dir][1];\n pos = y * width + x;\n if ((imageData[pos] === color) && ((labelData[pos] === 0) || (labelData[pos] === label))) {\n labelData[pos] = label;\n current.cy = y;\n current.cx = x;\n return true;\n } else {\n if (labelData[pos] === 0) {\n labelData[pos] = edgelabel;\n }\n current.dir = (current.dir + 1) % 8;\n }\n }\n return false;\n }\n\n function vertex2D(x, y, dir) {\n return {\n dir : dir,\n x : x,\n y : y,\n next : null,\n prev : null\n };\n }\n\n function contourTracing(sy, sx, label, color, edgelabel) {\n var Fv = null,\n Cv,\n P,\n ldir,\n current = {\n cx : sx,\n cy : sy,\n dir : 0\n };\n\n if (trace(current, color, label, edgelabel)) {\n Fv = vertex2D(sx, sy, current.dir);\n Cv = Fv;\n ldir = current.dir;\n P = vertex2D(current.cx, current.cy, 0);\n P.prev = Cv;\n Cv.next = P;\n P.next = null;\n Cv = P;\n do {\n current.dir = (current.dir + 6) % 8;\n trace(current, color, label, edgelabel);\n if (ldir != current.dir) {\n Cv.dir = current.dir;\n P = vertex2D(current.cx, current.cy, 0);\n P.prev = Cv;\n Cv.next = P;\n P.next = null;\n Cv = P;\n } else {\n Cv.dir = ldir;\n Cv.x = current.cx;\n Cv.y = current.cy;\n }\n ldir = current.dir;\n } while(current.cx != sx || current.cy != sy);\n Fv.prev = Cv.prev;\n Cv.prev.next = Fv;\n }\n return Fv;\n }\n\n return {\n trace : function(current, color, label, edgelabel) {\n return trace(current, color, label, edgelabel);\n },\n contourTracing : function(sy, sx, label, color, edgelabel) {\n return contourTracing(sy, sx, label, color, edgelabel);\n }\n };\n }\n};\n\nexport default (Tracer);\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/tracer.js\n **/","/* @preserve ASM BEGIN */\nfunction Skeletonizer(stdlib, foreign, buffer) {\n \"use asm\";\n\n var images = new stdlib.Uint8Array(buffer),\n size = foreign.size | 0,\n imul = stdlib.Math.imul;\n\n function erode(inImagePtr, outImagePtr) {\n inImagePtr = inImagePtr | 0;\n outImagePtr = outImagePtr | 0;\n\n var v = 0,\n u = 0,\n sum = 0,\n yStart1 = 0,\n yStart2 = 0,\n xStart1 = 0,\n xStart2 = 0,\n offset = 0;\n\n for ( v = 1; (v | 0) < ((size - 1) | 0); v = (v + 1) | 0) {\n offset = (offset + size) | 0;\n for ( u = 1; (u | 0) < ((size - 1) | 0); u = (u + 1) | 0) {\n yStart1 = (offset - size) | 0;\n yStart2 = (offset + size) | 0;\n xStart1 = (u - 1) | 0;\n xStart2 = (u + 1) | 0;\n sum = ((images[(inImagePtr + yStart1 + xStart1) | 0] | 0) + (images[(inImagePtr + yStart1 + xStart2) | 0] | 0) + (images[(inImagePtr + offset + u) | 0] | 0) + (images[(inImagePtr + yStart2 + xStart1) | 0] | 0) + (images[(inImagePtr + yStart2 + xStart2) | 0] | 0)) | 0;\n if ((sum | 0) == (5 | 0)) {\n images[(outImagePtr + offset + u) | 0] = 1;\n } else {\n images[(outImagePtr + offset + u) | 0] = 0;\n }\n }\n }\n return;\n }\n\n function subtract(aImagePtr, bImagePtr, outImagePtr) {\n aImagePtr = aImagePtr | 0;\n bImagePtr = bImagePtr | 0;\n outImagePtr = outImagePtr | 0;\n\n var length = 0;\n\n length = imul(size, size) | 0;\n\n while ((length | 0) > 0) {\n length = (length - 1) | 0;\n images[(outImagePtr + length) | 0] = ((images[(aImagePtr + length) | 0] | 0) - (images[(bImagePtr + length) | 0] | 0)) | 0;\n }\n }\n\n function bitwiseOr(aImagePtr, bImagePtr, outImagePtr) {\n aImagePtr = aImagePtr | 0;\n bImagePtr = bImagePtr | 0;\n outImagePtr = outImagePtr | 0;\n\n var length = 0;\n\n length = imul(size, size) | 0;\n\n while ((length | 0) > 0) {\n length = (length - 1) | 0;\n images[(outImagePtr + length) | 0] = ((images[(aImagePtr + length) | 0] | 0) | (images[(bImagePtr + length) | 0] | 0)) | 0;\n }\n }\n\n function countNonZero(imagePtr) {\n imagePtr = imagePtr | 0;\n\n var sum = 0,\n length = 0;\n\n length = imul(size, size) | 0;\n\n while ((length | 0) > 0) {\n length = (length - 1) | 0;\n sum = ((sum | 0) + (images[(imagePtr + length) | 0] | 0)) | 0;\n }\n\n return (sum | 0);\n }\n\n function init(imagePtr, value) {\n imagePtr = imagePtr | 0;\n value = value | 0;\n\n var length = 0;\n\n length = imul(size, size) | 0;\n\n while ((length | 0) > 0) {\n length = (length - 1) | 0;\n images[(imagePtr + length) | 0] = value;\n }\n }\n\n function dilate(inImagePtr, outImagePtr) {\n inImagePtr = inImagePtr | 0;\n outImagePtr = outImagePtr | 0;\n\n var v = 0,\n u = 0,\n sum = 0,\n yStart1 = 0,\n yStart2 = 0,\n xStart1 = 0,\n xStart2 = 0,\n offset = 0;\n\n for ( v = 1; (v | 0) < ((size - 1) | 0); v = (v + 1) | 0) {\n offset = (offset + size) | 0;\n for ( u = 1; (u | 0) < ((size - 1) | 0); u = (u + 1) | 0) {\n yStart1 = (offset - size) | 0;\n yStart2 = (offset + size) | 0;\n xStart1 = (u - 1) | 0;\n xStart2 = (u + 1) | 0;\n sum = ((images[(inImagePtr + yStart1 + xStart1) | 0] | 0) + (images[(inImagePtr + yStart1 + xStart2) | 0] | 0) + (images[(inImagePtr + offset + u) | 0] | 0) + (images[(inImagePtr + yStart2 + xStart1) | 0] | 0) + (images[(inImagePtr + yStart2 + xStart2) | 0] | 0)) | 0;\n if ((sum | 0) > (0 | 0)) {\n images[(outImagePtr + offset + u) | 0] = 1;\n } else {\n images[(outImagePtr + offset + u) | 0] = 0;\n }\n }\n }\n return;\n }\n\n function memcpy(srcImagePtr, dstImagePtr) {\n srcImagePtr = srcImagePtr | 0;\n dstImagePtr = dstImagePtr | 0;\n\n var length = 0;\n\n length = imul(size, size) | 0;\n\n while ((length | 0) > 0) {\n length = (length - 1) | 0;\n images[(dstImagePtr + length) | 0] = (images[(srcImagePtr + length) | 0] | 0);\n }\n }\n\n function zeroBorder(imagePtr) {\n imagePtr = imagePtr | 0;\n\n var x = 0,\n y = 0;\n\n for ( x = 0; (x | 0) < ((size - 1) | 0); x = (x + 1) | 0) {\n images[(imagePtr + x) | 0] = 0;\n images[(imagePtr + y) | 0] = 0;\n y = ((y + size) - 1) | 0;\n images[(imagePtr + y) | 0] = 0;\n y = (y + 1) | 0;\n }\n for ( x = 0; (x | 0) < (size | 0); x = (x + 1) | 0) {\n images[(imagePtr + y) | 0] = 0;\n y = (y + 1) | 0;\n }\n }\n\n function skeletonize() {\n var subImagePtr = 0,\n erodedImagePtr = 0,\n tempImagePtr = 0,\n skelImagePtr = 0,\n sum = 0,\n done = 0;\n\n erodedImagePtr = imul(size, size) | 0;\n tempImagePtr = (erodedImagePtr + erodedImagePtr) | 0;\n skelImagePtr = (tempImagePtr + erodedImagePtr) | 0;\n\n // init skel-image\n init(skelImagePtr, 0);\n zeroBorder(subImagePtr);\n\n do {\n erode(subImagePtr, erodedImagePtr);\n dilate(erodedImagePtr, tempImagePtr);\n subtract(subImagePtr, tempImagePtr, tempImagePtr);\n bitwiseOr(skelImagePtr, tempImagePtr, skelImagePtr);\n memcpy(erodedImagePtr, subImagePtr);\n sum = countNonZero(subImagePtr) | 0;\n done = ((sum | 0) == 0 | 0);\n } while(!done);\n }\n\n return {\n skeletonize : skeletonize\n };\n}\n/* @preserve ASM END */\n\nexport default Skeletonizer;\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/skeletonizer.js\n **/","export default {\n drawRect: function(pos, size, ctx, style){\n ctx.strokeStyle = style.color;\n ctx.fillStyle = style.color;\n ctx.lineWidth = 1;\n ctx.beginPath();\n ctx.strokeRect(pos.x, pos.y, size.x, size.y);\n },\n drawPath: function(path, def, ctx, style) {\n ctx.strokeStyle = style.color;\n ctx.fillStyle = style.color;\n ctx.lineWidth = style.lineWidth;\n ctx.beginPath();\n ctx.moveTo(path[0][def.x], path[0][def.y]);\n for (var j = 1; j < path.length; j++) {\n ctx.lineTo(path[j][def.x], path[j][def.y]);\n }\n ctx.closePath();\n ctx.stroke();\n },\n drawImage: function(imageData, size, ctx) {\n var canvasData = ctx.getImageData(0, 0, size.x, size.y),\n data = canvasData.data,\n imageDataPos = imageData.length,\n canvasDataPos = data.length,\n value;\n\n if (canvasDataPos/imageDataPos !== 4) {\n return false;\n }\n while(imageDataPos--){\n value = imageData[imageDataPos];\n data[--canvasDataPos] = 255;\n data[--canvasDataPos] = value;\n data[--canvasDataPos] = value;\n data[--canvasDataPos] = value;\n }\n ctx.putImageData(canvasData, 0, 0);\n return true;\n }\n};\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/image_debug.js\n **/","import Bresenham from './bresenham';\nimport ImageDebug from './image_debug';\nimport Code128Reader from './code_128_reader';\nimport EANReader from './ean_reader';\nimport Code39Reader from './code_39_reader';\nimport Code39VINReader from './code_39_vin_reader';\nimport CodabarReader from './codabar_reader';\nimport UPCReader from './upc_reader';\nimport EAN8Reader from './ean_8_reader';\nimport UPCEReader from './upc_e_reader';\nimport I2of5Reader from './i2of5_reader';\n\nvar readers = {\n code_128_reader: Code128Reader,\n ean_reader: EANReader,\n ean_8_reader: EAN8Reader,\n code_39_reader: Code39Reader,\n code_39_vin_reader: Code39VINReader,\n codabar_reader: CodabarReader,\n upc_reader: UPCReader,\n upc_e_reader: UPCEReader,\n i2of5_reader: I2of5Reader\n};\nexport default {\n create: function(config, inputImageWrapper) {\n var _canvas = {\n ctx: {\n frequency: null,\n pattern: null,\n overlay: null\n },\n dom: {\n frequency: null,\n pattern: null,\n overlay: null\n }\n },\n _barcodeReaders = [];\n\n initCanvas();\n initReaders();\n initConfig();\n\n function initCanvas() {\n if (typeof document !== 'undefined') {\n var $debug = document.querySelector(\"#debug.detection\");\n _canvas.dom.frequency = document.querySelector(\"canvas.frequency\");\n if (!_canvas.dom.frequency) {\n _canvas.dom.frequency = document.createElement(\"canvas\");\n _canvas.dom.frequency.className = \"frequency\";\n if ($debug) {\n $debug.appendChild(_canvas.dom.frequency);\n }\n }\n _canvas.ctx.frequency = _canvas.dom.frequency.getContext(\"2d\");\n\n _canvas.dom.pattern = document.querySelector(\"canvas.patternBuffer\");\n if (!_canvas.dom.pattern) {\n _canvas.dom.pattern = document.createElement(\"canvas\");\n _canvas.dom.pattern.className = \"patternBuffer\";\n if ($debug) {\n $debug.appendChild(_canvas.dom.pattern);\n }\n }\n _canvas.ctx.pattern = _canvas.dom.pattern.getContext(\"2d\");\n\n _canvas.dom.overlay = document.querySelector(\"canvas.drawingBuffer\");\n if (_canvas.dom.overlay) {\n _canvas.ctx.overlay = _canvas.dom.overlay.getContext(\"2d\");\n }\n }\n }\n\n function initReaders() {\n config.readers.forEach(function(readerConfig) {\n var reader,\n config = {};\n\n if (typeof readerConfig === 'object') {\n reader = readerConfig.format;\n config = readerConfig.config;\n } else if (typeof readerConfig === 'string') {\n reader = readerConfig;\n }\n console.log(\"Before registering reader: \", reader);\n _barcodeReaders.push(new readers[reader](config));\n });\n console.log(\"Registered Readers: \" + _barcodeReaders\n .map((reader) => JSON.stringify({format: reader.FORMAT, config: reader.config}))\n .join(', '));\n }\n\n function initConfig() {\n if (typeof document !== 'undefined') {\n var i,\n vis = [{\n node: _canvas.dom.frequency,\n prop: config.showFrequency\n }, {\n node: _canvas.dom.pattern,\n prop: config.showPattern\n }];\n\n for (i = 0; i < vis.length; i++) {\n if (vis[i].prop === true) {\n vis[i].node.style.display = \"block\";\n } else {\n vis[i].node.style.display = \"none\";\n }\n }\n }\n }\n\n /**\n * extend the line on both ends\n * @param {Array} line\n * @param {Number} angle\n */\n function getExtendedLine(line, angle, ext) {\n function extendLine(amount) {\n var extension = {\n y: amount * Math.sin(angle),\n x: amount * Math.cos(angle)\n };\n\n line[0].y -= extension.y;\n line[0].x -= extension.x;\n line[1].y += extension.y;\n line[1].x += extension.x;\n }\n\n // check if inside image\n extendLine(ext);\n while (ext > 1 && (!inputImageWrapper.inImageWithBorder(line[0], 0)\n || !inputImageWrapper.inImageWithBorder(line[1], 0))) {\n ext -= Math.ceil(ext / 2);\n extendLine(-ext);\n }\n return line;\n }\n\n function getLine(box) {\n return [{\n x: (box[1][0] - box[0][0]) / 2 + box[0][0],\n y: (box[1][1] - box[0][1]) / 2 + box[0][1]\n }, {\n x: (box[3][0] - box[2][0]) / 2 + box[2][0],\n y: (box[3][1] - box[2][1]) / 2 + box[2][1]\n }];\n }\n\n function tryDecode(line) {\n var result = null,\n i,\n barcodeLine = Bresenham.getBarcodeLine(inputImageWrapper, line[0], line[1]);\n\n if (config.showFrequency) {\n ImageDebug.drawPath(line, {x: 'x', y: 'y'}, _canvas.ctx.overlay, {color: 'red', lineWidth: 3});\n Bresenham.debug.printFrequency(barcodeLine.line, _canvas.dom.frequency);\n }\n Bresenham.toBinaryLine(barcodeLine);\n if (config.showPattern) {\n Bresenham.debug.printPattern(barcodeLine.line, _canvas.dom.pattern);\n }\n\n for ( i = 0; i < _barcodeReaders.length && result === null; i++) {\n result = _barcodeReaders[i].decodePattern(barcodeLine.line);\n }\n if(result === null){\n return null;\n }\n return {\n codeResult: result,\n barcodeLine: barcodeLine\n };\n\n }\n\n /**\n * This method slices the given area apart and tries to detect a barcode-pattern\n * for each slice. It returns the decoded barcode, or null if nothing was found\n * @param {Array} box\n * @param {Array} line\n * @param {Number} lineAngle\n */\n function tryDecodeBruteForce(box, line, lineAngle) {\n var sideLength = Math.sqrt(Math.pow(box[1][0] - box[0][0], 2) + Math.pow((box[1][1] - box[0][1]), 2)),\n i,\n slices = 16,\n result = null,\n dir,\n extension,\n xdir = Math.sin(lineAngle),\n ydir = Math.cos(lineAngle);\n\n for ( i = 1; i < slices && result === null; i++) {\n // move line perpendicular to angle\n dir = sideLength / slices * i * (i % 2 === 0 ? -1 : 1);\n extension = {\n y: dir * xdir,\n x: dir * ydir\n };\n line[0].y += extension.x;\n line[0].x -= extension.y;\n line[1].y += extension.x;\n line[1].x -= extension.y;\n\n result = tryDecode(line);\n }\n return result;\n }\n\n function getLineLength(line) {\n return Math.sqrt(\n Math.pow(Math.abs(line[1].y - line[0].y), 2) +\n Math.pow(Math.abs(line[1].x - line[0].x), 2));\n }\n\n /**\n * With the help of the configured readers (Code128 or EAN) this function tries to detect a\n * valid barcode pattern within the given area.\n * @param {Object} box The area to search in\n * @returns {Object} the result {codeResult, line, angle, pattern, threshold}\n */\n function decodeFromBoundingBox(box) {\n var line,\n lineAngle,\n ctx = _canvas.ctx.overlay,\n result,\n lineLength;\n\n if (config.drawBoundingBox && ctx) {\n ImageDebug.drawPath(box, {x: 0, y: 1}, ctx, {color: \"blue\", lineWidth: 2});\n }\n\n line = getLine(box);\n lineLength = getLineLength(line);\n lineAngle = Math.atan2(line[1].y - line[0].y, line[1].x - line[0].x);\n line = getExtendedLine(line, lineAngle, Math.floor(lineLength * 0.1));\n if (line === null){\n return null;\n }\n\n result = tryDecode(line);\n if (result === null) {\n result = tryDecodeBruteForce(box, line, lineAngle);\n }\n\n if (result === null) {\n return null;\n }\n\n if (result && config.drawScanline && ctx) {\n ImageDebug.drawPath(line, {x: 'x', y: 'y'}, ctx, {color: 'red', lineWidth: 3});\n }\n\n return {\n codeResult : result.codeResult,\n line : line,\n angle : lineAngle,\n pattern : result.barcodeLine.line,\n threshold : result.barcodeLine.threshold\n };\n }\n\n return {\n decodeFromBoundingBox: function(box) {\n return decodeFromBoundingBox(box);\n },\n decodeFromBoundingBoxes: function(boxes) {\n var i, result;\n for ( i = 0; i < boxes.length; i++) {\n result = decodeFromBoundingBox(boxes[i]);\n if (result && result.codeResult) {\n result.box = boxes[i];\n return result;\n }\n }\n },\n setReaders: function(readers) {\n config.readers = readers;\n _barcodeReaders.length = 0;\n initReaders();\n }\n };\n }\n};\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/barcode_decoder.js\n **/","import CVUtils from './cv_utils';\nimport ImageWrapper from './image_wrapper';\n\nvar Bresenham = {};\n\nvar Slope = {\n DIR: {\n UP: 1,\n DOWN: -1\n }\n};\n/**\n * Scans a line of the given image from point p1 to p2 and returns a result object containing\n * gray-scale values (0-255) of the underlying pixels in addition to the min\n * and max values.\n * @param {Object} imageWrapper\n * @param {Object} p1 The start point {x,y}\n * @param {Object} p2 The end point {x,y}\n * @returns {line, min, max}\n */\nBresenham.getBarcodeLine = function(imageWrapper, p1, p2) {\n var x0 = p1.x | 0,\n y0 = p1.y | 0,\n x1 = p2.x | 0,\n y1 = p2.y | 0,\n steep = Math.abs(y1 - y0) > Math.abs(x1 - x0),\n deltax,\n deltay,\n error,\n ystep,\n y,\n tmp,\n x,\n line = [],\n imageData = imageWrapper.data,\n width = imageWrapper.size.x,\n sum = 0,\n val,\n min = 255,\n max = 0;\n\n function read(a, b) {\n val = imageData[b * width + a];\n sum += val;\n min = val < min ? val : min;\n max = val > max ? val : max;\n line.push(val);\n }\n\n if (steep) {\n tmp = x0;\n x0 = y0;\n y0 = tmp;\n\n tmp = x1;\n x1 = y1;\n y1 = tmp;\n }\n if (x0 > x1) {\n tmp = x0;\n x0 = x1;\n x1 = tmp;\n\n tmp = y0;\n y0 = y1;\n y1 = tmp;\n }\n deltax = x1 - x0;\n deltay = Math.abs(y1 - y0);\n error = (deltax / 2) | 0;\n y = y0;\n ystep = y0 < y1 ? 1 : -1;\n for ( x = x0; x < x1; x++) {\n if (steep){\n read(y, x);\n } else {\n read(x, y);\n }\n error = error - deltay;\n if (error < 0) {\n y = y + ystep;\n error = error + deltax;\n }\n }\n\n return {\n line: line,\n min: min,\n max: max\n };\n};\n\nBresenham.toOtsuBinaryLine = function(result) {\n var line = result.line,\n image = new ImageWrapper({x: line.length - 1, y: 1}, line),\n threshold = CVUtils.determineOtsuThreshold(image, 5);\n\n line = CVUtils.sharpenLine(line);\n CVUtils.thresholdImage(image, threshold);\n\n return {\n line: line,\n threshold: threshold\n };\n};\n\n/**\n * Converts the result from getBarcodeLine into a binary representation\n * also considering the frequency and slope of the signal for more robust results\n * @param {Object} result {line, min, max}\n */\nBresenham.toBinaryLine = function(result) {\n var min = result.min,\n max = result.max,\n line = result.line,\n slope,\n slope2,\n center = min + (max - min) / 2,\n extrema = [],\n currentDir,\n dir,\n threshold = (max - min) / 12,\n rThreshold = -threshold,\n i,\n j;\n\n // 1. find extrema\n currentDir = line[0] > center ? Slope.DIR.UP : Slope.DIR.DOWN;\n extrema.push({\n pos: 0,\n val: line[0]\n });\n for ( i = 0; i < line.length - 2; i++) {\n slope = (line[i + 1] - line[i]);\n slope2 = (line[i + 2] - line[i + 1]);\n if ((slope + slope2) < rThreshold && line[i + 1] < (center * 1.5)) {\n dir = Slope.DIR.DOWN;\n } else if ((slope + slope2) > threshold && line[i + 1] > (center * 0.5)) {\n dir = Slope.DIR.UP;\n } else {\n dir = currentDir;\n }\n\n if (currentDir !== dir) {\n extrema.push({\n pos: i,\n val: line[i]\n });\n currentDir = dir;\n }\n }\n extrema.push({\n pos: line.length,\n val: line[line.length - 1]\n });\n\n for ( j = extrema[0].pos; j < extrema[1].pos; j++) {\n line[j] = line[j] > center ? 0 : 1;\n }\n\n // iterate over extrema and convert to binary based on avg between minmax\n for ( i = 1; i < extrema.length - 1; i++) {\n if (extrema[i + 1].val > extrema[i].val) {\n threshold = (extrema[i].val + ((extrema[i + 1].val - extrema[i].val) / 3) * 2) | 0;\n } else {\n threshold = (extrema[i + 1].val + ((extrema[i].val - extrema[i + 1].val) / 3)) | 0;\n }\n\n for ( j = extrema[i].pos; j < extrema[i + 1].pos; j++) {\n line[j] = line[j] > threshold ? 0 : 1;\n }\n }\n\n return {\n line: line,\n threshold: threshold\n };\n};\n\n/**\n * Used for development only\n */\nBresenham.debug = {\n printFrequency: function(line, canvas) {\n var i,\n ctx = canvas.getContext(\"2d\");\n canvas.width = line.length;\n canvas.height = 256;\n\n ctx.beginPath();\n ctx.strokeStyle = \"blue\";\n for ( i = 0; i < line.length; i++) {\n ctx.moveTo(i, 255);\n ctx.lineTo(i, 255 - line[i]);\n }\n ctx.stroke();\n ctx.closePath();\n },\n\n printPattern: function(line, canvas) {\n var ctx = canvas.getContext(\"2d\"), i;\n\n canvas.width = line.length;\n ctx.fillColor = \"black\";\n for ( i = 0; i < line.length; i++) {\n if (line[i] === 1) {\n ctx.fillRect(i, 0, 1, 100);\n }\n }\n }\n};\n\nexport default Bresenham;\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/bresenham.js\n **/","import BarcodeReader from './barcode_reader';\n\nfunction Code128Reader() {\n BarcodeReader.call(this);\n}\n\nvar properties = {\n CODE_SHIFT: {value: 98},\n CODE_C: {value: 99},\n CODE_B: {value: 100},\n CODE_A: {value: 101},\n START_CODE_A: {value: 103},\n START_CODE_B: {value: 104},\n START_CODE_C: {value: 105},\n STOP_CODE: {value: 106},\n MODULO: {value: 11},\n CODE_PATTERN: {value: [\n [2, 1, 2, 2, 2, 2],\n [2, 2, 2, 1, 2, 2],\n [2, 2, 2, 2, 2, 1],\n [1, 2, 1, 2, 2, 3],\n [1, 2, 1, 3, 2, 2],\n [1, 3, 1, 2, 2, 2],\n [1, 2, 2, 2, 1, 3],\n [1, 2, 2, 3, 1, 2],\n [1, 3, 2, 2, 1, 2],\n [2, 2, 1, 2, 1, 3],\n [2, 2, 1, 3, 1, 2],\n [2, 3, 1, 2, 1, 2],\n [1, 1, 2, 2, 3, 2],\n [1, 2, 2, 1, 3, 2],\n [1, 2, 2, 2, 3, 1],\n [1, 1, 3, 2, 2, 2],\n [1, 2, 3, 1, 2, 2],\n [1, 2, 3, 2, 2, 1],\n [2, 2, 3, 2, 1, 1],\n [2, 2, 1, 1, 3, 2],\n [2, 2, 1, 2, 3, 1],\n [2, 1, 3, 2, 1, 2],\n [2, 2, 3, 1, 1, 2],\n [3, 1, 2, 1, 3, 1],\n [3, 1, 1, 2, 2, 2],\n [3, 2, 1, 1, 2, 2],\n [3, 2, 1, 2, 2, 1],\n [3, 1, 2, 2, 1, 2],\n [3, 2, 2, 1, 1, 2],\n [3, 2, 2, 2, 1, 1],\n [2, 1, 2, 1, 2, 3],\n [2, 1, 2, 3, 2, 1],\n [2, 3, 2, 1, 2, 1],\n [1, 1, 1, 3, 2, 3],\n [1, 3, 1, 1, 2, 3],\n [1, 3, 1, 3, 2, 1],\n [1, 1, 2, 3, 1, 3],\n [1, 3, 2, 1, 1, 3],\n [1, 3, 2, 3, 1, 1],\n [2, 1, 1, 3, 1, 3],\n [2, 3, 1, 1, 1, 3],\n [2, 3, 1, 3, 1, 1],\n [1, 1, 2, 1, 3, 3],\n [1, 1, 2, 3, 3, 1],\n [1, 3, 2, 1, 3, 1],\n [1, 1, 3, 1, 2, 3],\n [1, 1, 3, 3, 2, 1],\n [1, 3, 3, 1, 2, 1],\n [3, 1, 3, 1, 2, 1],\n [2, 1, 1, 3, 3, 1],\n [2, 3, 1, 1, 3, 1],\n [2, 1, 3, 1, 1, 3],\n [2, 1, 3, 3, 1, 1],\n [2, 1, 3, 1, 3, 1],\n [3, 1, 1, 1, 2, 3],\n [3, 1, 1, 3, 2, 1],\n [3, 3, 1, 1, 2, 1],\n [3, 1, 2, 1, 1, 3],\n [3, 1, 2, 3, 1, 1],\n [3, 3, 2, 1, 1, 1],\n [3, 1, 4, 1, 1, 1],\n [2, 2, 1, 4, 1, 1],\n [4, 3, 1, 1, 1, 1],\n [1, 1, 1, 2, 2, 4],\n [1, 1, 1, 4, 2, 2],\n [1, 2, 1, 1, 2, 4],\n [1, 2, 1, 4, 2, 1],\n [1, 4, 1, 1, 2, 2],\n [1, 4, 1, 2, 2, 1],\n [1, 1, 2, 2, 1, 4],\n [1, 1, 2, 4, 1, 2],\n [1, 2, 2, 1, 1, 4],\n [1, 2, 2, 4, 1, 1],\n [1, 4, 2, 1, 1, 2],\n [1, 4, 2, 2, 1, 1],\n [2, 4, 1, 2, 1, 1],\n [2, 2, 1, 1, 1, 4],\n [4, 1, 3, 1, 1, 1],\n [2, 4, 1, 1, 1, 2],\n [1, 3, 4, 1, 1, 1],\n [1, 1, 1, 2, 4, 2],\n [1, 2, 1, 1, 4, 2],\n [1, 2, 1, 2, 4, 1],\n [1, 1, 4, 2, 1, 2],\n [1, 2, 4, 1, 1, 2],\n [1, 2, 4, 2, 1, 1],\n [4, 1, 1, 2, 1, 2],\n [4, 2, 1, 1, 1, 2],\n [4, 2, 1, 2, 1, 1],\n [2, 1, 2, 1, 4, 1],\n [2, 1, 4, 1, 2, 1],\n [4, 1, 2, 1, 2, 1],\n [1, 1, 1, 1, 4, 3],\n [1, 1, 1, 3, 4, 1],\n [1, 3, 1, 1, 4, 1],\n [1, 1, 4, 1, 1, 3],\n [1, 1, 4, 3, 1, 1],\n [4, 1, 1, 1, 1, 3],\n [4, 1, 1, 3, 1, 1],\n [1, 1, 3, 1, 4, 1],\n [1, 1, 4, 1, 3, 1],\n [3, 1, 1, 1, 4, 1],\n [4, 1, 1, 1, 3, 1],\n [2, 1, 1, 4, 1, 2],\n [2, 1, 1, 2, 1, 4],\n [2, 1, 1, 2, 3, 2],\n [2, 3, 3, 1, 1, 1, 2]\n ]},\n SINGLE_CODE_ERROR: {value: 1},\n AVG_CODE_ERROR: {value: 0.5},\n FORMAT: {value: \"code_128\", writeable: false}\n};\n\nCode128Reader.prototype = Object.create(BarcodeReader.prototype, properties);\nCode128Reader.prototype.constructor = Code128Reader;\n\nCode128Reader.prototype._decodeCode = function(start) {\n var counter = [0, 0, 0, 0, 0, 0],\n i,\n self = this,\n offset = start,\n isWhite = !self._row[offset],\n counterPos = 0,\n bestMatch = {\n error: Number.MAX_VALUE,\n code: -1,\n start: start,\n end: start\n },\n code,\n error,\n normalized;\n\n for ( i = offset; i < self._row.length; i++) {\n if (self._row[i] ^ isWhite) {\n counter[counterPos]++;\n } else {\n if (counterPos === counter.length - 1) {\n normalized = self._normalize(counter);\n if (normalized) {\n for (code = 0; code < self.CODE_PATTERN.length; code++) {\n error = self._matchPattern(normalized, self.CODE_PATTERN[code]);\n if (error < bestMatch.error) {\n bestMatch.code = code;\n bestMatch.error = error;\n }\n }\n bestMatch.end = i;\n return bestMatch;\n }\n } else {\n counterPos++;\n }\n counter[counterPos] = 1;\n isWhite = !isWhite;\n }\n }\n return null;\n};\n\nCode128Reader.prototype._findStart = function() {\n var counter = [0, 0, 0, 0, 0, 0],\n i,\n self = this,\n offset = self._nextSet(self._row),\n isWhite = false,\n counterPos = 0,\n bestMatch = {\n error: Number.MAX_VALUE,\n code: -1,\n start: 0,\n end: 0\n },\n code,\n error,\n j,\n sum,\n normalized;\n\n for ( i = offset; i < self._row.length; i++) {\n if (self._row[i] ^ isWhite) {\n counter[counterPos]++;\n } else {\n if (counterPos === counter.length - 1) {\n sum = 0;\n for ( j = 0; j < counter.length; j++) {\n sum += counter[j];\n }\n normalized = self._normalize(counter);\n if (normalized) {\n for (code = self.START_CODE_A; code <= self.START_CODE_C; code++) {\n error = self._matchPattern(normalized, self.CODE_PATTERN[code]);\n if (error < bestMatch.error) {\n bestMatch.code = code;\n bestMatch.error = error;\n }\n }\n if (bestMatch.error < self.AVG_CODE_ERROR) {\n bestMatch.start = i - sum;\n bestMatch.end = i;\n return bestMatch;\n }\n }\n\n for ( j = 0; j < 4; j++) {\n counter[j] = counter[j + 2];\n }\n counter[4] = 0;\n counter[5] = 0;\n counterPos--;\n } else {\n counterPos++;\n }\n counter[counterPos] = 1;\n isWhite = !isWhite;\n }\n }\n return null;\n};\n\nCode128Reader.prototype._decode = function() {\n var self = this,\n startInfo = self._findStart(),\n code = null,\n done = false,\n result = [],\n multiplier = 0,\n checksum = 0,\n codeset,\n rawResult = [],\n decodedCodes = [],\n shiftNext = false,\n unshift;\n\n if (startInfo === null) {\n return null;\n }\n code = {\n code: startInfo.code,\n start: startInfo.start,\n end: startInfo.end\n };\n decodedCodes.push(code);\n checksum = code.code;\n switch (code.code) {\n case self.START_CODE_A:\n codeset = self.CODE_A;\n break;\n case self.START_CODE_B:\n codeset = self.CODE_B;\n break;\n case self.START_CODE_C:\n codeset = self.CODE_C;\n break;\n default:\n return null;\n }\n\n while (!done) {\n unshift = shiftNext;\n shiftNext = false;\n code = self._decodeCode(code.end);\n if (code !== null) {\n if (code.code !== self.STOP_CODE) {\n rawResult.push(code.code);\n multiplier++;\n checksum += multiplier * code.code;\n }\n decodedCodes.push(code);\n\n switch (codeset) {\n case self.CODE_A:\n if (code.code < 64) {\n result.push(String.fromCharCode(32 + code.code));\n } else if (code.code < 96) {\n result.push(String.fromCharCode(code.code - 64));\n } else {\n switch (code.code) {\n case self.CODE_SHIFT:\n shiftNext = true;\n codeset = self.CODE_B;\n break;\n case self.CODE_B:\n codeset = self.CODE_B;\n break;\n case self.CODE_C:\n codeset = self.CODE_C;\n break;\n case self.STOP_CODE:\n done = true;\n break;\n }\n }\n break;\n case self.CODE_B:\n if (code.code < 96) {\n result.push(String.fromCharCode(32 + code.code));\n } else {\n switch (code.code) {\n case self.CODE_SHIFT:\n shiftNext = true;\n codeset = self.CODE_A;\n break;\n case self.CODE_A:\n codeset = self.CODE_A;\n break;\n case self.CODE_C:\n codeset = self.CODE_C;\n break;\n case self.STOP_CODE:\n done = true;\n break;\n }\n }\n break;\n case self.CODE_C:\n if (code.code < 100) {\n result.push(code.code < 10 ? \"0\" + code.code : code.code);\n }\n switch (code.code) {\n case self.CODE_A:\n codeset = self.CODE_A;\n break;\n case self.CODE_B:\n codeset = self.CODE_B;\n break;\n case self.STOP_CODE:\n done = true;\n break;\n }\n break;\n }\n } else {\n done = true;\n }\n if (unshift) {\n codeset = codeset === self.CODE_A ? self.CODE_B : self.CODE_A;\n }\n }\n\n if (code === null) {\n return null;\n }\n\n // find end bar\n code.end = self._nextUnset(self._row, code.end);\n if (!self._verifyTrailingWhitespace(code)){\n return null;\n }\n\n // checksum\n // Does not work correctly yet!!! startcode - endcode?\n checksum -= multiplier * rawResult[rawResult.length - 1];\n if (checksum % 103 !== rawResult[rawResult.length - 1]) {\n return null;\n }\n\n if (!result.length) {\n return null;\n }\n\n // remove last code from result (checksum)\n result.splice(result.length - 1, 1);\n\n return {\n code: result.join(\"\"),\n start: startInfo.start,\n end: code.end,\n codeset: codeset,\n startInfo: startInfo,\n decodedCodes: decodedCodes,\n endInfo: code\n };\n};\n\n\nBarcodeReader.prototype._verifyTrailingWhitespace = function(endInfo) {\n var self = this,\n trailingWhitespaceEnd;\n\n trailingWhitespaceEnd = endInfo.end + ((endInfo.end - endInfo.start) / 2);\n if (trailingWhitespaceEnd < self._row.length) {\n if (self._matchRange(endInfo.end, trailingWhitespaceEnd, 0)) {\n return endInfo;\n }\n }\n return null;\n};\n\nexport default Code128Reader;\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/code_128_reader.js\n **/","function BarcodeReader(config) {\n this._row = [];\n this.config = config || {};\n return this;\n}\n\nBarcodeReader.prototype._nextUnset = function(line, start) {\n var i;\n\n if (start === undefined) {\n start = 0;\n }\n for (i = start; i < line.length; i++) {\n if (!line[i]) {\n return i;\n }\n }\n return line.length;\n};\n\nBarcodeReader.prototype._matchPattern = function(counter, code) {\n var i,\n error = 0,\n singleError = 0,\n modulo = this.MODULO,\n maxSingleError = this.SINGLE_CODE_ERROR || 1;\n\n for (i = 0; i < counter.length; i++) {\n singleError = Math.abs(code[i] - counter[i]);\n if (singleError > maxSingleError) {\n return Number.MAX_VALUE;\n }\n error += singleError;\n }\n return error / modulo;\n};\n\nBarcodeReader.prototype._nextSet = function(line, offset) {\n var i;\n\n offset = offset || 0;\n for (i = offset; i < line.length; i++) {\n if (line[i]) {\n return i;\n }\n }\n return line.length;\n};\n\nBarcodeReader.prototype._normalize = function(counter, modulo) {\n var i,\n self = this,\n sum = 0,\n ratio,\n numOnes = 0,\n normalized = [],\n norm = 0;\n\n if (!modulo) {\n modulo = self.MODULO;\n }\n for (i = 0; i < counter.length; i++) {\n if (counter[i] === 1) {\n numOnes++;\n } else {\n sum += counter[i];\n }\n }\n ratio = sum / (modulo - numOnes);\n if (ratio > 1.0) {\n for (i = 0; i < counter.length; i++) {\n norm = counter[i] === 1 ? counter[i] : counter[i] / ratio;\n normalized.push(norm);\n }\n } else {\n ratio = (sum + numOnes) / modulo;\n for (i = 0; i < counter.length; i++) {\n norm = counter[i] / ratio;\n normalized.push(norm);\n }\n }\n return normalized;\n};\n\nBarcodeReader.prototype._matchTrace = function(cmpCounter, epsilon) {\n var counter = [],\n i,\n self = this,\n offset = self._nextSet(self._row),\n isWhite = !self._row[offset],\n counterPos = 0,\n bestMatch = {\n error: Number.MAX_VALUE,\n code: -1,\n start: 0\n },\n error;\n\n if (cmpCounter) {\n for ( i = 0; i < cmpCounter.length; i++) {\n counter.push(0);\n }\n for ( i = offset; i < self._row.length; i++) {\n if (self._row[i] ^ isWhite) {\n counter[counterPos]++;\n } else {\n if (counterPos === counter.length - 1) {\n error = self._matchPattern(counter, cmpCounter);\n\n if (error < epsilon) {\n bestMatch.start = i - offset;\n bestMatch.end = i;\n bestMatch.counter = counter;\n return bestMatch;\n } else {\n return null;\n }\n } else {\n counterPos++;\n }\n counter[counterPos] = 1;\n isWhite = !isWhite;\n }\n }\n } else {\n counter.push(0);\n for ( i = offset; i < self._row.length; i++) {\n if (self._row[i] ^ isWhite) {\n counter[counterPos]++;\n } else {\n counterPos++;\n counter.push(0);\n counter[counterPos] = 1;\n isWhite = !isWhite;\n }\n }\n }\n\n // if cmpCounter was not given\n bestMatch.start = offset;\n bestMatch.end = self._row.length - 1;\n bestMatch.counter = counter;\n return bestMatch;\n};\n\nBarcodeReader.prototype.decodePattern = function(pattern) {\n var self = this,\n result;\n\n self._row = pattern;\n result = self._decode();\n if (result === null) {\n self._row.reverse();\n result = self._decode();\n if (result) {\n result.direction = BarcodeReader.DIRECTION.REVERSE;\n result.start = self._row.length - result.start;\n result.end = self._row.length - result.end;\n }\n } else {\n result.direction = BarcodeReader.DIRECTION.FORWARD;\n }\n if (result) {\n result.format = self.FORMAT;\n }\n return result;\n};\n\nBarcodeReader.prototype._matchRange = function(start, end, value) {\n var i;\n\n start = start < 0 ? 0 : start;\n for (i = start; i < end; i++) {\n if (this._row[i] !== value) {\n return false;\n }\n }\n return true;\n};\n\nBarcodeReader.prototype._fillCounters = function(offset, end, isWhite) {\n var self = this,\n counterPos = 0,\n i,\n counters = [];\n\n isWhite = (typeof isWhite !== 'undefined') ? isWhite : true;\n offset = (typeof offset !== 'undefined') ? offset : self._nextUnset(self._row);\n end = end || self._row.length;\n\n counters[counterPos] = 0;\n for (i = offset; i < end; i++) {\n if (self._row[i] ^ isWhite) {\n counters[counterPos]++;\n } else {\n counterPos++;\n counters[counterPos] = 1;\n isWhite = !isWhite;\n }\n }\n return counters;\n};\n\nObject.defineProperty(BarcodeReader.prototype, \"FORMAT\", {\n value: 'unknown',\n writeable: false\n});\n\nBarcodeReader.DIRECTION = {\n FORWARD: 1,\n REVERSE: -1\n};\n\nBarcodeReader.Exception = {\n StartNotFoundException: \"Start-Info was not found!\",\n CodeNotFoundException: \"Code could not be found!\",\n PatternNotFoundException: \"Pattern could not be found!\"\n};\n\nBarcodeReader.CONFIG_KEYS = {};\n\nexport default BarcodeReader;\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/barcode_reader.js\n **/","import BarcodeReader from './barcode_reader';\n\nfunction EANReader(opts) {\n BarcodeReader.call(this, opts);\n}\n\nvar properties = {\n CODE_L_START : {value: 0},\n MODULO : {value: 7},\n CODE_G_START : {value: 10},\n START_PATTERN : {value: [1 / 3 * 7, 1 / 3 * 7, 1 / 3 * 7]},\n STOP_PATTERN : {value: [1 / 3 * 7, 1 / 3 * 7, 1 / 3 * 7]},\n MIDDLE_PATTERN : {value: [1 / 5 * 7, 1 / 5 * 7, 1 / 5 * 7, 1 / 5 * 7, 1 / 5 * 7]},\n CODE_PATTERN : {value: [\n [3, 2, 1, 1],\n [2, 2, 2, 1],\n [2, 1, 2, 2],\n [1, 4, 1, 1],\n [1, 1, 3, 2],\n [1, 2, 3, 1],\n [1, 1, 1, 4],\n [1, 3, 1, 2],\n [1, 2, 1, 3],\n [3, 1, 1, 2],\n [1, 1, 2, 3],\n [1, 2, 2, 2],\n [2, 2, 1, 2],\n [1, 1, 4, 1],\n [2, 3, 1, 1],\n [1, 3, 2, 1],\n [4, 1, 1, 1],\n [2, 1, 3, 1],\n [3, 1, 2, 1],\n [2, 1, 1, 3]\n ]},\n CODE_FREQUENCY : {value: [0, 11, 13, 14, 19, 25, 28, 21, 22, 26]},\n SINGLE_CODE_ERROR: {value: 0.67},\n AVG_CODE_ERROR: {value: 0.27},\n FORMAT: {value: \"ean_13\", writeable: false}\n};\n\nEANReader.prototype = Object.create(BarcodeReader.prototype, properties);\nEANReader.prototype.constructor = EANReader;\n\nEANReader.prototype._decodeCode = function(start, coderange) {\n var counter = [0, 0, 0, 0],\n i,\n self = this,\n offset = start,\n isWhite = !self._row[offset],\n counterPos = 0,\n bestMatch = {\n error : Number.MAX_VALUE,\n code : -1,\n start : start,\n end : start\n },\n code,\n error,\n normalized;\n\n if (!coderange) {\n coderange = self.CODE_PATTERN.length;\n }\n\n for ( i = offset; i < self._row.length; i++) {\n if (self._row[i] ^ isWhite) {\n counter[counterPos]++;\n } else {\n if (counterPos === counter.length - 1) {\n normalized = self._normalize(counter);\n if (normalized) {\n for (code = 0; code < coderange; code++) {\n error = self._matchPattern(normalized, self.CODE_PATTERN[code]);\n if (error < bestMatch.error) {\n bestMatch.code = code;\n bestMatch.error = error;\n }\n }\n bestMatch.end = i;\n if (bestMatch.error > self.AVG_CODE_ERROR) {\n return null;\n }\n return bestMatch;\n }\n } else {\n counterPos++;\n }\n counter[counterPos] = 1;\n isWhite = !isWhite;\n }\n }\n return null;\n};\n\nEANReader.prototype._findPattern = function(pattern, offset, isWhite, tryHarder, epsilon) {\n var counter = [],\n self = this,\n i,\n counterPos = 0,\n bestMatch = {\n error : Number.MAX_VALUE,\n code : -1,\n start : 0,\n end : 0\n },\n error,\n j,\n sum,\n normalized;\n\n if (!offset) {\n offset = self._nextSet(self._row);\n }\n\n if (isWhite === undefined) {\n isWhite = false;\n }\n\n if (tryHarder === undefined) {\n tryHarder = true;\n }\n\n if ( epsilon === undefined) {\n epsilon = self.AVG_CODE_ERROR;\n }\n\n for ( i = 0; i < pattern.length; i++) {\n counter[i] = 0;\n }\n\n for ( i = offset; i < self._row.length; i++) {\n if (self._row[i] ^ isWhite) {\n counter[counterPos]++;\n } else {\n if (counterPos === counter.length - 1) {\n sum = 0;\n for ( j = 0; j < counter.length; j++) {\n sum += counter[j];\n }\n normalized = self._normalize(counter);\n if (normalized) {\n error = self._matchPattern(normalized, pattern);\n\n if (error < epsilon) {\n bestMatch.error = error;\n bestMatch.start = i - sum;\n bestMatch.end = i;\n return bestMatch;\n }\n }\n if (tryHarder) {\n for ( j = 0; j < counter.length - 2; j++) {\n counter[j] = counter[j + 2];\n }\n counter[counter.length - 2] = 0;\n counter[counter.length - 1] = 0;\n counterPos--;\n } else {\n return null;\n }\n } else {\n counterPos++;\n }\n counter[counterPos] = 1;\n isWhite = !isWhite;\n }\n }\n return null;\n};\n\nEANReader.prototype._findStart = function() {\n var self = this,\n leadingWhitespaceStart,\n offset = self._nextSet(self._row),\n startInfo;\n\n while(!startInfo) {\n startInfo = self._findPattern(self.START_PATTERN, offset);\n if (!startInfo) {\n return null;\n }\n leadingWhitespaceStart = startInfo.start - (startInfo.end - startInfo.start);\n if (leadingWhitespaceStart >= 0) {\n if (self._matchRange(leadingWhitespaceStart, startInfo.start, 0)) {\n return startInfo;\n }\n }\n offset = startInfo.end;\n startInfo = null;\n }\n};\n\nEANReader.prototype._verifyTrailingWhitespace = function(endInfo) {\n var self = this,\n trailingWhitespaceEnd;\n\n trailingWhitespaceEnd = endInfo.end + (endInfo.end - endInfo.start);\n if (trailingWhitespaceEnd < self._row.length) {\n if (self._matchRange(endInfo.end, trailingWhitespaceEnd, 0)) {\n return endInfo;\n }\n }\n return null;\n};\n\nEANReader.prototype._findEnd = function(offset, isWhite) {\n var self = this,\n endInfo = self._findPattern(self.STOP_PATTERN, offset, isWhite, false);\n\n return endInfo !== null ? self._verifyTrailingWhitespace(endInfo) : null;\n};\n\nEANReader.prototype._calculateFirstDigit = function(codeFrequency) {\n var i,\n self = this;\n\n for ( i = 0; i < self.CODE_FREQUENCY.length; i++) {\n if (codeFrequency === self.CODE_FREQUENCY[i]) {\n return i;\n }\n }\n return null;\n};\n\nEANReader.prototype._decodePayload = function(code, result, decodedCodes) {\n var i,\n self = this,\n codeFrequency = 0x0,\n firstDigit;\n\n for ( i = 0; i < 6; i++) {\n code = self._decodeCode(code.end);\n if (!code) {\n return null;\n }\n if (code.code >= self.CODE_G_START) {\n code.code = code.code - self.CODE_G_START;\n codeFrequency |= 1 << (5 - i);\n } else {\n codeFrequency |= 0 << (5 - i);\n }\n result.push(code.code);\n decodedCodes.push(code);\n }\n\n firstDigit = self._calculateFirstDigit(codeFrequency);\n if (firstDigit === null) {\n return null;\n }\n result.unshift(firstDigit);\n\n code = self._findPattern(self.MIDDLE_PATTERN, code.end, true, false);\n if (code === null) {\n return null;\n }\n decodedCodes.push(code);\n\n for ( i = 0; i < 6; i++) {\n code = self._decodeCode(code.end, self.CODE_G_START);\n if (!code) {\n return null;\n }\n decodedCodes.push(code);\n result.push(code.code);\n }\n\n return code;\n};\n\nEANReader.prototype._decode = function() {\n var startInfo,\n self = this,\n code,\n result = [],\n decodedCodes = [];\n\n startInfo = self._findStart();\n if (!startInfo) {\n return null;\n }\n code = {\n code : startInfo.code,\n start : startInfo.start,\n end : startInfo.end\n };\n decodedCodes.push(code);\n code = self._decodePayload(code, result, decodedCodes);\n if (!code) {\n return null;\n }\n code = self._findEnd(code.end, false);\n if (!code){\n return null;\n }\n\n decodedCodes.push(code);\n\n // Checksum\n if (!self._checksum(result)) {\n return null;\n }\n\n return {\n code : result.join(\"\"),\n start : startInfo.start,\n end : code.end,\n codeset : \"\",\n startInfo : startInfo,\n decodedCodes : decodedCodes\n };\n};\n\nEANReader.prototype._checksum = function(result) {\n var sum = 0, i;\n\n for ( i = result.length - 2; i >= 0; i -= 2) {\n sum += result[i];\n }\n sum *= 3;\n for ( i = result.length - 1; i >= 0; i -= 2) {\n sum += result[i];\n }\n return sum % 10 === 0;\n};\n\nexport default (EANReader);\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/ean_reader.js\n **/","import BarcodeReader from './barcode_reader';\nimport ArrayHelper from './array_helper';\n\nfunction Code39Reader() {\n BarcodeReader.call(this);\n}\n\nvar properties = {\n ALPHABETH_STRING: {value: \"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ-. *$/+%\"},\n ALPHABET: {value: [48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78,\n 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 45, 46, 32, 42, 36, 47, 43, 37]},\n CHARACTER_ENCODINGS: {value: [0x034, 0x121, 0x061, 0x160, 0x031, 0x130, 0x070, 0x025, 0x124, 0x064, 0x109, 0x049,\n 0x148, 0x019, 0x118, 0x058, 0x00D, 0x10C, 0x04C, 0x01C, 0x103, 0x043, 0x142, 0x013, 0x112, 0x052, 0x007, 0x106,\n 0x046, 0x016, 0x181, 0x0C1, 0x1C0, 0x091, 0x190, 0x0D0, 0x085, 0x184, 0x0C4, 0x094, 0x0A8, 0x0A2, 0x08A, 0x02A\n ]},\n ASTERISK: {value: 0x094},\n FORMAT: {value: \"code_39\", writeable: false}\n};\n\nCode39Reader.prototype = Object.create(BarcodeReader.prototype, properties);\nCode39Reader.prototype.constructor = Code39Reader;\n\nCode39Reader.prototype._toCounters = function(start, counter) {\n var self = this,\n numCounters = counter.length,\n end = self._row.length,\n isWhite = !self._row[start],\n i,\n counterPos = 0;\n\n ArrayHelper.init(counter, 0);\n\n for ( i = start; i < end; i++) {\n if (self._row[i] ^ isWhite) {\n counter[counterPos]++;\n } else {\n counterPos++;\n if (counterPos === numCounters) {\n break;\n } else {\n counter[counterPos] = 1;\n isWhite = !isWhite;\n }\n }\n }\n\n return counter;\n};\n\nCode39Reader.prototype._decode = function() {\n var self = this,\n counters = [0, 0, 0, 0, 0, 0, 0, 0, 0],\n result = [],\n start = self._findStart(),\n decodedChar,\n lastStart,\n pattern,\n nextStart;\n\n if (!start) {\n return null;\n }\n nextStart = self._nextSet(self._row, start.end);\n\n do {\n counters = self._toCounters(nextStart, counters);\n pattern = self._toPattern(counters);\n if (pattern < 0) {\n return null;\n }\n decodedChar = self._patternToChar(pattern);\n if (decodedChar < 0){\n return null;\n }\n result.push(decodedChar);\n lastStart = nextStart;\n nextStart += ArrayHelper.sum(counters);\n nextStart = self._nextSet(self._row, nextStart);\n } while (decodedChar !== '*');\n result.pop();\n\n if (!result.length) {\n return null;\n }\n\n if (!self._verifyTrailingWhitespace(lastStart, nextStart, counters)) {\n return null;\n }\n\n return {\n code: result.join(\"\"),\n start: start.start,\n end: nextStart,\n startInfo: start,\n decodedCodes: result\n };\n};\n\nCode39Reader.prototype._verifyTrailingWhitespace = function(lastStart, nextStart, counters) {\n var trailingWhitespaceEnd,\n patternSize = ArrayHelper.sum(counters);\n\n trailingWhitespaceEnd = nextStart - lastStart - patternSize;\n if ((trailingWhitespaceEnd * 3) >= patternSize) {\n return true;\n }\n return false;\n};\n\nCode39Reader.prototype._patternToChar = function(pattern) {\n var i,\n self = this;\n\n for (i = 0; i < self.CHARACTER_ENCODINGS.length; i++) {\n if (self.CHARACTER_ENCODINGS[i] === pattern) {\n return String.fromCharCode(self.ALPHABET[i]);\n }\n }\n};\n\nCode39Reader.prototype._findNextWidth = function(counters, current) {\n var i,\n minWidth = Number.MAX_VALUE;\n\n for (i = 0; i < counters.length; i++) {\n if (counters[i] < minWidth && counters[i] > current) {\n minWidth = counters[i];\n }\n }\n\n return minWidth;\n};\n\nCode39Reader.prototype._toPattern = function(counters) {\n var numCounters = counters.length,\n maxNarrowWidth = 0,\n numWideBars = numCounters,\n wideBarWidth = 0,\n self = this,\n pattern,\n i;\n\n while (numWideBars > 3) {\n maxNarrowWidth = self._findNextWidth(counters, maxNarrowWidth);\n numWideBars = 0;\n pattern = 0;\n for (i = 0; i < numCounters; i++) {\n if (counters[i] > maxNarrowWidth) {\n pattern |= 1 << (numCounters - 1 - i);\n numWideBars++;\n wideBarWidth += counters[i];\n }\n }\n\n if (numWideBars === 3) {\n for (i = 0; i < numCounters && numWideBars > 0; i++) {\n if (counters[i] > maxNarrowWidth) {\n numWideBars--;\n if ((counters[i] * 2) >= wideBarWidth) {\n return -1;\n }\n }\n }\n return pattern;\n }\n }\n return -1;\n};\n\nCode39Reader.prototype._findStart = function() {\n var self = this,\n offset = self._nextSet(self._row),\n patternStart = offset,\n counter = [0, 0, 0, 0, 0, 0, 0, 0, 0],\n counterPos = 0,\n isWhite = false,\n i,\n j,\n whiteSpaceMustStart;\n\n for ( i = offset; i < self._row.length; i++) {\n if (self._row[i] ^ isWhite) {\n counter[counterPos]++;\n } else {\n if (counterPos === counter.length - 1) {\n // find start pattern\n if (self._toPattern(counter) === self.ASTERISK) {\n whiteSpaceMustStart = Math.floor(Math.max(0, patternStart - ((i - patternStart) / 4)));\n if (self._matchRange(whiteSpaceMustStart, patternStart, 0)) {\n return {\n start: patternStart,\n end: i\n };\n }\n }\n\n patternStart += counter[0] + counter[1];\n for ( j = 0; j < 7; j++) {\n counter[j] = counter[j + 2];\n }\n counter[7] = 0;\n counter[8] = 0;\n counterPos--;\n } else {\n counterPos++;\n }\n counter[counterPos] = 1;\n isWhite = !isWhite;\n }\n }\n return null;\n};\n\nexport default Code39Reader;\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/code_39_reader.js\n **/","import Code39Reader from './code_39_reader';\n\nfunction Code39VINReader() {\n Code39Reader.call(this);\n}\n\nvar patterns = {\n IOQ: /[IOQ]/g,\n AZ09: /[A-Z0-9]{17}/\n};\n\nCode39VINReader.prototype = Object.create(Code39Reader.prototype);\nCode39VINReader.prototype.constructor = Code39VINReader;\n\n// Cribbed from:\n// /~https://github.com/zxing/zxing/blob/master/core/src/main/java/com/google/zxing/client/result/VINResultParser.java\nCode39VINReader.prototype._decode = function() {\n var result = Code39Reader.prototype._decode.apply(this);\n if (!result) {\n return null;\n }\n\n var code = result.code;\n\n if (!code) {\n return;\n }\n\n code = code.replace(patterns.IOQ, '');\n\n if (!code.match(patterns.AZ09)) {\n console.log('Failed AZ09 pattern code:', code);\n return null;\n }\n\n if (!this._checkChecksum(code)) {\n return null;\n }\n\n result.code = code;\n return result;\n};\n\nCode39VINReader.prototype._checkChecksum = function(code) {\n // TODO\n return !!code;\n};\n\nexport default Code39VINReader;\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/code_39_vin_reader.js\n **/","import BarcodeReader from './barcode_reader';\n\nfunction CodabarReader() {\n BarcodeReader.call(this);\n this._counters = [];\n}\n\nvar properties = {\n ALPHABETH_STRING: {value: \"0123456789-$:/.+ABCD\"},\n ALPHABET: {value: [48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 45, 36, 58, 47, 46, 43, 65, 66, 67, 68]},\n CHARACTER_ENCODINGS: {value: [0x003, 0x006, 0x009, 0x060, 0x012, 0x042, 0x021, 0x024, 0x030, 0x048, 0x00c, 0x018,\n 0x045, 0x051, 0x054, 0x015, 0x01A, 0x029, 0x00B, 0x00E]},\n START_END: {value: [0x01A, 0x029, 0x00B, 0x00E]},\n MIN_ENCODED_CHARS: {value: 4},\n MAX_ACCEPTABLE: {value: 2.0},\n PADDING: {value: 1.5},\n FORMAT: {value: \"codabar\", writeable: false}\n};\n\nCodabarReader.prototype = Object.create(BarcodeReader.prototype, properties);\nCodabarReader.prototype.constructor = CodabarReader;\n\nCodabarReader.prototype._decode = function() {\n var self = this,\n result = [],\n start,\n decodedChar,\n pattern,\n nextStart,\n end;\n\n this._counters = self._fillCounters();\n start = self._findStart();\n if (!start) {\n return null;\n }\n nextStart = start.startCounter;\n\n do {\n pattern = self._toPattern(nextStart);\n if (pattern < 0) {\n return null;\n }\n decodedChar = self._patternToChar(pattern);\n if (decodedChar < 0){\n return null;\n }\n result.push(decodedChar);\n nextStart += 8;\n if (result.length > 1 && self._isStartEnd(pattern)) {\n break;\n }\n } while (nextStart < self._counters.length);\n\n // verify end\n if ((result.length - 2) < self.MIN_ENCODED_CHARS || !self._isStartEnd(pattern)) {\n return null;\n }\n\n // verify end white space\n if (!self._verifyWhitespace(start.startCounter, nextStart - 8)){\n return null;\n }\n\n if (!self._validateResult(result, start.startCounter)){\n return null;\n }\n\n nextStart = nextStart > self._counters.length ? self._counters.length : nextStart;\n end = start.start + self._sumCounters(start.startCounter, nextStart - 8);\n\n return {\n code: result.join(\"\"),\n start: start.start,\n end: end,\n startInfo: start,\n decodedCodes: result\n };\n};\n\nCodabarReader.prototype._verifyWhitespace = function(startCounter, endCounter) {\n if ((startCounter - 1 <= 0)\n || this._counters[startCounter - 1] >= (this._calculatePatternLength(startCounter) / 2.0)) {\n if ((endCounter + 8 >= this._counters.length)\n || this._counters[endCounter + 7] >= (this._calculatePatternLength(endCounter) / 2.0)) {\n return true;\n }\n }\n return false;\n};\n\nCodabarReader.prototype._calculatePatternLength = function(offset) {\n var i,\n sum = 0;\n\n for (i = offset; i < offset + 7; i++) {\n sum += this._counters[i];\n }\n\n return sum;\n};\n\nCodabarReader.prototype._thresholdResultPattern = function(result, startCounter){\n var self = this,\n categorization = {\n space: {\n narrow: { size: 0, counts: 0, min: 0, max: Number.MAX_VALUE},\n wide: {size: 0, counts: 0, min: 0, max: Number.MAX_VALUE}\n },\n bar: {\n narrow: { size: 0, counts: 0, min: 0, max: Number.MAX_VALUE},\n wide: { size: 0, counts: 0, min: 0, max: Number.MAX_VALUE}\n }\n },\n kind,\n cat,\n i,\n j,\n pos = startCounter,\n pattern;\n\n for (i = 0; i < result.length; i++){\n pattern = self._charToPattern(result[i]);\n for (j = 6; j >= 0; j--) {\n kind = (j & 1) === 2 ? categorization.bar : categorization.space;\n cat = (pattern & 1) === 1 ? kind.wide : kind.narrow;\n cat.size += self._counters[pos + j];\n cat.counts++;\n pattern >>= 1;\n }\n pos += 8;\n }\n\n [\"space\", \"bar\"].forEach(function(key) {\n var kind = categorization[key];\n kind.wide.min = Math.floor((kind.narrow.size / kind.narrow.counts + kind.wide.size / kind.wide.counts) / 2);\n kind.narrow.max = Math.ceil(kind.wide.min);\n kind.wide.max = Math.ceil((kind.wide.size * self.MAX_ACCEPTABLE + self.PADDING) / kind.wide.counts);\n });\n\n return categorization;\n};\n\nCodabarReader.prototype._charToPattern = function(char) {\n var self = this,\n charCode = char.charCodeAt(0),\n i;\n\n for (i = 0; i < self.ALPHABET.length; i++) {\n if (self.ALPHABET[i] === charCode){\n return self.CHARACTER_ENCODINGS[i];\n }\n }\n return 0x0;\n};\n\nCodabarReader.prototype._validateResult = function(result, startCounter) {\n var self = this,\n thresholds = self._thresholdResultPattern(result, startCounter),\n i,\n j,\n kind,\n cat,\n size,\n pos = startCounter,\n pattern;\n\n for (i = 0; i < result.length; i++) {\n pattern = self._charToPattern(result[i]);\n for (j = 6; j >= 0; j--) {\n kind = (j & 1) === 0 ? thresholds.bar : thresholds.space;\n cat = (pattern & 1) === 1 ? kind.wide : kind.narrow;\n size = self._counters[pos + j];\n if (size < cat.min || size > cat.max) {\n return false;\n }\n pattern >>= 1;\n }\n pos += 8;\n }\n return true;\n};\n\nCodabarReader.prototype._patternToChar = function(pattern) {\n var i,\n self = this;\n\n for (i = 0; i < self.CHARACTER_ENCODINGS.length; i++) {\n if (self.CHARACTER_ENCODINGS[i] === pattern) {\n return String.fromCharCode(self.ALPHABET[i]);\n }\n }\n return -1;\n};\n\nCodabarReader.prototype._computeAlternatingThreshold = function(offset, end) {\n var i,\n min = Number.MAX_VALUE,\n max = 0,\n counter;\n\n for (i = offset; i < end; i += 2){\n counter = this._counters[i];\n if (counter > max) {\n max = counter;\n }\n if (counter < min) {\n min = counter;\n }\n }\n\n return ((min + max) / 2.0) | 0;\n};\n\nCodabarReader.prototype._toPattern = function(offset) {\n var numCounters = 7,\n end = offset + numCounters,\n barThreshold,\n spaceThreshold,\n bitmask = 1 << (numCounters - 1),\n pattern = 0,\n i,\n threshold;\n\n if (end > this._counters.length) {\n return -1;\n }\n\n barThreshold = this._computeAlternatingThreshold(offset, end);\n spaceThreshold = this._computeAlternatingThreshold(offset + 1, end);\n\n for (i = 0; i < numCounters; i++){\n threshold = (i & 1) === 0 ? barThreshold : spaceThreshold;\n if (this._counters[offset + i] > threshold) {\n pattern |= bitmask;\n }\n bitmask >>= 1;\n }\n\n return pattern;\n};\n\nCodabarReader.prototype._isStartEnd = function(pattern) {\n var i;\n\n for (i = 0; i < this.START_END.length; i++) {\n if (this.START_END[i] === pattern) {\n return true;\n }\n }\n return false;\n};\n\nCodabarReader.prototype._sumCounters = function(start, end) {\n var i,\n sum = 0;\n\n for (i = start; i < end; i++) {\n sum += this._counters[i];\n }\n return sum;\n};\n\nCodabarReader.prototype._findStart = function() {\n var self = this,\n i,\n pattern,\n start = self._nextUnset(self._row),\n end;\n\n for (i = 1; i < this._counters.length; i++) {\n pattern = self._toPattern(i);\n if (pattern !== -1 && self._isStartEnd(pattern)) {\n // TODO: Look for whitespace ahead\n start += self._sumCounters(0, i);\n end = start + self._sumCounters(i, i + 8);\n return {\n start: start,\n end: end,\n startCounter: i,\n endCounter: i + 8\n };\n }\n }\n};\n\nexport default CodabarReader;\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/codabar_reader.js\n **/","import EANReader from './ean_reader';\n\nfunction UPCReader() {\n EANReader.call(this);\n}\n\nvar properties = {\n FORMAT: {value: \"upc_a\", writeable: false}\n};\n\nUPCReader.prototype = Object.create(EANReader.prototype, properties);\nUPCReader.prototype.constructor = UPCReader;\n\nUPCReader.prototype._decode = function() {\n var result = EANReader.prototype._decode.call(this);\n\n console.log(\"result\", result);\n if (result && result.code && result.code.length === 13 && result.code.charAt(0) === \"0\") {\n result.code = result.code.substring(1);\n return result;\n }\n return null;\n};\n\nexport default UPCReader;\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/upc_reader.js\n **/","import EANReader from './ean_reader';\n\nfunction EAN8Reader() {\n EANReader.call(this);\n}\n\nvar properties = {\n FORMAT: {value: \"ean_8\", writeable: false}\n};\n\nEAN8Reader.prototype = Object.create(EANReader.prototype, properties);\nEAN8Reader.prototype.constructor = EAN8Reader;\n\nEAN8Reader.prototype._decodePayload = function(code, result, decodedCodes) {\n var i,\n self = this;\n\n for ( i = 0; i < 4; i++) {\n code = self._decodeCode(code.end, self.CODE_G_START);\n if (!code) {\n return null;\n }\n result.push(code.code);\n decodedCodes.push(code);\n }\n\n code = self._findPattern(self.MIDDLE_PATTERN, code.end, true, false);\n if (code === null) {\n return null;\n }\n decodedCodes.push(code);\n\n for ( i = 0; i < 4; i++) {\n code = self._decodeCode(code.end, self.CODE_G_START);\n if (!code) {\n return null;\n }\n decodedCodes.push(code);\n result.push(code.code);\n }\n\n return code;\n};\n\nexport default EAN8Reader;\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/ean_8_reader.js\n **/","import EANReader from './ean_reader';\n\nfunction UPCEReader() {\n EANReader.call(this);\n}\n\nvar properties = {\n CODE_FREQUENCY : {value: [\n [ 56, 52, 50, 49, 44, 38, 35, 42, 41, 37 ],\n [7, 11, 13, 14, 19, 25, 28, 21, 22, 26]]},\n STOP_PATTERN: { value: [1 / 6 * 7, 1 / 6 * 7, 1 / 6 * 7, 1 / 6 * 7, 1 / 6 * 7, 1 / 6 * 7]},\n FORMAT: {value: \"upc_e\", writeable: false}\n};\n\nUPCEReader.prototype = Object.create(EANReader.prototype, properties);\nUPCEReader.prototype.constructor = UPCEReader;\n\nUPCEReader.prototype._decodePayload = function(code, result, decodedCodes) {\n var i,\n self = this,\n codeFrequency = 0x0;\n\n for ( i = 0; i < 6; i++) {\n code = self._decodeCode(code.end);\n if (!code) {\n return null;\n }\n if (code.code >= self.CODE_G_START) {\n code.code = code.code - self.CODE_G_START;\n codeFrequency |= 1 << (5 - i);\n }\n result.push(code.code);\n decodedCodes.push(code);\n }\n if (!self._determineParity(codeFrequency, result)) {\n return null;\n }\n\n return code;\n};\n\nUPCEReader.prototype._determineParity = function(codeFrequency, result) {\n var self =this,\n i,\n nrSystem;\n\n for (nrSystem = 0; nrSystem < self.CODE_FREQUENCY.length; nrSystem++){\n for ( i = 0; i < self.CODE_FREQUENCY[nrSystem].length; i++) {\n if (codeFrequency === self.CODE_FREQUENCY[nrSystem][i]) {\n result.unshift(nrSystem);\n result.push(i);\n return true;\n }\n }\n }\n return false;\n};\n\nUPCEReader.prototype._convertToUPCA = function(result) {\n var upca = [result[0]],\n lastDigit = result[result.length - 2];\n\n if (lastDigit <= 2) {\n upca = upca.concat(result.slice(1, 3))\n .concat([lastDigit, 0, 0, 0, 0])\n .concat(result.slice(3, 6));\n } else if (lastDigit === 3) {\n upca = upca.concat(result.slice(1, 4))\n .concat([0 ,0, 0, 0, 0])\n .concat(result.slice(4,6));\n } else if (lastDigit === 4) {\n upca = upca.concat(result.slice(1, 5))\n .concat([0, 0, 0, 0, 0, result[5]]);\n } else {\n upca = upca.concat(result.slice(1, 6))\n .concat([0, 0, 0, 0, lastDigit]);\n }\n\n upca.push(result[result.length - 1]);\n return upca;\n};\n\nUPCEReader.prototype._checksum = function(result) {\n return EANReader.prototype._checksum.call(this, this._convertToUPCA(result));\n};\n\nUPCEReader.prototype._findEnd = function(offset, isWhite) {\n isWhite = true;\n return EANReader.prototype._findEnd.call(this, offset, isWhite);\n};\n\nUPCEReader.prototype._verifyTrailingWhitespace = function(endInfo) {\n var self = this,\n trailingWhitespaceEnd;\n\n trailingWhitespaceEnd = endInfo.end + ((endInfo.end - endInfo.start)/2);\n if (trailingWhitespaceEnd < self._row.length) {\n if (self._matchRange(endInfo.end, trailingWhitespaceEnd, 0)) {\n return endInfo;\n }\n }\n};\n\nexport default UPCEReader;\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/upc_e_reader.js\n **/","import BarcodeReader from './barcode_reader';\nconst merge = require('lodash/object/merge');\n\nfunction I2of5Reader(opts) {\n opts = merge(getDefaulConfig(), opts);\n BarcodeReader.call(this, opts);\n this.barSpaceRatio = [1, 1];\n if (opts.normalizeBarSpaceWidth) {\n this.SINGLE_CODE_ERROR = 0.38;\n this.AVG_CODE_ERROR = 0.09;\n }\n}\n\nfunction getDefaulConfig() {\n var config = {};\n\n Object.keys(I2of5Reader.CONFIG_KEYS).forEach(function(key) {\n config[key] = I2of5Reader.CONFIG_KEYS[key]['default'];\n });\n return config;\n}\n\nvar N = 1,\n W = 3,\n properties = {\n MODULO : {value: 10},\n START_PATTERN : {value: [N*2.5, N*2.5, N*2.5, N*2.5]},\n STOP_PATTERN : {value: [N*2, N*2, W*2]},\n CODE_PATTERN : {value: [\n [N, N, W, W, N],\n [W, N, N, N, W],\n [N, W, N, N, W],\n [W, W, N, N, N],\n [N, N, W, N, W],\n [W, N, W, N, N],\n [N, W, W, N, N],\n [N, N, N, W, W],\n [W, N, N, W, N],\n [N, W, N, W, N]\n ]},\n SINGLE_CODE_ERROR: {value: 0.78, writable: true},\n AVG_CODE_ERROR: {value: 0.38, writable: true},\n MAX_CORRECTION_FACTOR: {value: 5},\n FORMAT: {value: \"i2of5\"}\n};\n\nI2of5Reader.prototype = Object.create(BarcodeReader.prototype, properties);\nI2of5Reader.prototype.constructor = I2of5Reader;\n\nI2of5Reader.prototype._matchPattern = function(counter, code) {\n if (this.config.normalizeBarSpaceWidth) {\n var i,\n counterSum = [0, 0],\n codeSum = [0, 0],\n correction = [0, 0],\n correctionRatio = this.MAX_CORRECTION_FACTOR,\n correctionRatioInverse = 1 / correctionRatio;\n\n for (i = 0; i < counter.length; i++) {\n counterSum[i % 2] += counter[i];\n codeSum[i % 2] += code[i];\n }\n correction[0] = codeSum[0] / counterSum[0];\n correction[1] = codeSum[1] / counterSum[1];\n\n correction[0] = Math.max(Math.min(correction[0], correctionRatio), correctionRatioInverse);\n correction[1] = Math.max(Math.min(correction[1], correctionRatio), correctionRatioInverse);\n this.barSpaceRatio = correction;\n for (i = 0; i < counter.length; i++) {\n counter[i] *= this.barSpaceRatio[i % 2];\n }\n }\n return BarcodeReader.prototype._matchPattern.call(this, counter, code);\n};\n\nI2of5Reader.prototype._findPattern = function(pattern, offset, isWhite, tryHarder) {\n var counter = [],\n self = this,\n i,\n counterPos = 0,\n bestMatch = {\n error : Number.MAX_VALUE,\n code : -1,\n start : 0,\n end : 0\n },\n error,\n j,\n sum,\n normalized,\n epsilon = self.AVG_CODE_ERROR;\n\n isWhite = isWhite || false;\n tryHarder = tryHarder || false;\n\n if (!offset) {\n offset = self._nextSet(self._row);\n }\n\n for ( i = 0; i < pattern.length; i++) {\n counter[i] = 0;\n }\n\n for ( i = offset; i < self._row.length; i++) {\n if (self._row[i] ^ isWhite) {\n counter[counterPos]++;\n } else {\n if (counterPos === counter.length - 1) {\n sum = 0;\n for ( j = 0; j < counter.length; j++) {\n sum += counter[j];\n }\n normalized = self._normalize(counter);\n if (normalized) {\n error = self._matchPattern(normalized, pattern);\n\n if (error < epsilon) {\n bestMatch.error = error;\n bestMatch.start = i - sum;\n bestMatch.end = i;\n return bestMatch;\n }\n }\n if (tryHarder) {\n for (j = 0; j < counter.length - 2; j++) {\n counter[j] = counter[j + 2];\n }\n counter[counter.length - 2] = 0;\n counter[counter.length - 1] = 0;\n counterPos--;\n } else {\n return null;\n }\n } else {\n counterPos++;\n }\n counter[counterPos] = 1;\n isWhite = !isWhite;\n }\n }\n return null;\n};\n\nI2of5Reader.prototype._findStart = function() {\n var self = this,\n leadingWhitespaceStart,\n offset = self._nextSet(self._row),\n startInfo,\n narrowBarWidth = 1;\n\n while(!startInfo) {\n startInfo = self._findPattern(self.START_PATTERN, offset, false, true);\n if (!startInfo) {\n return null;\n }\n narrowBarWidth = Math.floor((startInfo.end - startInfo.start) / 4);\n leadingWhitespaceStart = startInfo.start - narrowBarWidth*10;\n if (leadingWhitespaceStart >= 0) {\n if (self._matchRange(leadingWhitespaceStart, startInfo.start, 0)) {\n return startInfo;\n }\n }\n offset = startInfo.end;\n startInfo = null;\n }\n};\n\nI2of5Reader.prototype._verifyTrailingWhitespace = function(endInfo) {\n var self = this,\n trailingWhitespaceEnd;\n\n trailingWhitespaceEnd = endInfo.end + ((endInfo.end - endInfo.start) / 2);\n if (trailingWhitespaceEnd < self._row.length) {\n if (self._matchRange(endInfo.end, trailingWhitespaceEnd, 0)) {\n return endInfo;\n }\n }\n return null;\n};\n\nI2of5Reader.prototype._findEnd = function() {\n var self = this,\n endInfo,\n tmp;\n\n self._row.reverse();\n endInfo = self._findPattern(self.STOP_PATTERN);\n self._row.reverse();\n\n if (endInfo === null) {\n return null;\n }\n\n // reverse numbers\n tmp = endInfo.start;\n endInfo.start = self._row.length - endInfo.end;\n endInfo.end = self._row.length - tmp;\n\n return endInfo !== null ? self._verifyTrailingWhitespace(endInfo) : null;\n};\n\nI2of5Reader.prototype._decodePair = function(counterPair) {\n var i,\n code,\n codes = [],\n self = this;\n\n for (i = 0; i < counterPair.length; i++) {\n code = self._decodeCode(counterPair[i]);\n if (!code) {\n return null;\n }\n codes.push(code);\n }\n return codes;\n};\n\nI2of5Reader.prototype._decodeCode = function(counter) {\n var j,\n self = this,\n sum = 0,\n normalized,\n error,\n epsilon = self.AVG_CODE_ERROR,\n code,\n bestMatch = {\n error : Number.MAX_VALUE,\n code : -1,\n start : 0,\n end : 0\n };\n\n for ( j = 0; j < counter.length; j++) {\n sum += counter[j];\n }\n normalized = self._normalize(counter);\n if (normalized) {\n for (code = 0; code < self.CODE_PATTERN.length; code++) {\n error = self._matchPattern(normalized, self.CODE_PATTERN[code]);\n if (error < bestMatch.error) {\n bestMatch.code = code;\n bestMatch.error = error;\n }\n }\n if (bestMatch.error < epsilon) {\n return bestMatch;\n }\n }\n return null;\n};\n\nI2of5Reader.prototype._decodePayload = function(counters, result, decodedCodes) {\n var i,\n self = this,\n pos = 0,\n counterLength = counters.length,\n counterPair = [[0, 0, 0, 0, 0], [0, 0, 0, 0, 0]],\n codes;\n\n while (pos < counterLength) {\n for (i = 0; i < 5; i++) {\n counterPair[0][i] = counters[pos]*this.barSpaceRatio[0];\n counterPair[1][i] = counters[pos + 1]*this.barSpaceRatio[1];\n pos += 2;\n }\n codes = self._decodePair(counterPair);\n if (!codes) {\n return null;\n }\n for (i = 0; i < codes.length; i++) {\n result.push(codes[i].code + \"\");\n decodedCodes.push(codes[i]);\n }\n }\n return codes;\n};\n\nI2of5Reader.prototype._verifyCounterLength = function(counters) {\n return (counters.length % 10 === 0);\n};\n\nI2of5Reader.prototype._decode = function() {\n var startInfo,\n endInfo,\n self = this,\n code,\n result = [],\n decodedCodes = [],\n counters;\n\n startInfo = self._findStart();\n if (!startInfo) {\n return null;\n }\n decodedCodes.push(startInfo);\n\n endInfo = self._findEnd();\n if (!endInfo) {\n return null;\n }\n\n counters = self._fillCounters(startInfo.end, endInfo.start, false);\n if (!self._verifyCounterLength(counters)) {\n return null;\n }\n code = self._decodePayload(counters, result, decodedCodes);\n if (!code) {\n return null;\n }\n if (result.length % 2 !== 0 ||\n result.length < 6) {\n return null;\n }\n\n decodedCodes.push(endInfo);\n return {\n code : result.join(\"\"),\n start : startInfo.start,\n end : endInfo.end,\n startInfo : startInfo,\n decodedCodes : decodedCodes\n };\n};\n\nI2of5Reader.CONFIG_KEYS = {\n normalizeBarSpaceWidth: {\n 'type': 'boolean',\n 'default': false,\n 'description': 'If true, the reader tries to normalize the' +\n 'width-difference between bars and spaces'\n }\n};\n\nexport default I2of5Reader;\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/i2of5_reader.js\n **/","var baseMerge = require('../internal/baseMerge'),\n createAssigner = require('../internal/createAssigner');\n\n/**\n * Recursively merges own enumerable properties of the source object(s), that\n * don't resolve to `undefined` into the destination object. Subsequent sources\n * overwrite property assignments of previous sources. If `customizer` is\n * provided it's invoked to produce the merged values of the destination and\n * source properties. If `customizer` returns `undefined` merging is handled\n * by the method instead. The `customizer` is bound to `thisArg` and invoked\n * with five arguments: (objectValue, sourceValue, key, object, source).\n *\n * @static\n * @memberOf _\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} [sources] The source objects.\n * @param {Function} [customizer] The function to customize assigned values.\n * @param {*} [thisArg] The `this` binding of `customizer`.\n * @returns {Object} Returns `object`.\n * @example\n *\n * var users = {\n * 'data': [{ 'user': 'barney' }, { 'user': 'fred' }]\n * };\n *\n * var ages = {\n * 'data': [{ 'age': 36 }, { 'age': 40 }]\n * };\n *\n * _.merge(users, ages);\n * // => { 'data': [{ 'user': 'barney', 'age': 36 }, { 'user': 'fred', 'age': 40 }] }\n *\n * // using a customizer callback\n * var object = {\n * 'fruits': ['apple'],\n * 'vegetables': ['beet']\n * };\n *\n * var other = {\n * 'fruits': ['banana'],\n * 'vegetables': ['carrot']\n * };\n *\n * _.merge(object, other, function(a, b) {\n * if (_.isArray(a)) {\n * return a.concat(b);\n * }\n * });\n * // => { 'fruits': ['apple', 'banana'], 'vegetables': ['beet', 'carrot'] }\n */\nvar merge = createAssigner(baseMerge);\n\nmodule.exports = merge;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/object/merge.js\n ** module id = 37\n ** module chunks = 0\n **/","var arrayEach = require('./arrayEach'),\n baseMergeDeep = require('./baseMergeDeep'),\n isArray = require('../lang/isArray'),\n isArrayLike = require('./isArrayLike'),\n isObject = require('../lang/isObject'),\n isObjectLike = require('./isObjectLike'),\n isTypedArray = require('../lang/isTypedArray'),\n keys = require('../object/keys');\n\n/**\n * The base implementation of `_.merge` without support for argument juggling,\n * multiple sources, and `this` binding `customizer` functions.\n *\n * @private\n * @param {Object} object The destination object.\n * @param {Object} source The source object.\n * @param {Function} [customizer] The function to customize merged values.\n * @param {Array} [stackA=[]] Tracks traversed source objects.\n * @param {Array} [stackB=[]] Associates values with source counterparts.\n * @returns {Object} Returns `object`.\n */\nfunction baseMerge(object, source, customizer, stackA, stackB) {\n if (!isObject(object)) {\n return object;\n }\n var isSrcArr = isArrayLike(source) && (isArray(source) || isTypedArray(source)),\n props = isSrcArr ? undefined : keys(source);\n\n arrayEach(props || source, function(srcValue, key) {\n if (props) {\n key = srcValue;\n srcValue = source[key];\n }\n if (isObjectLike(srcValue)) {\n stackA || (stackA = []);\n stackB || (stackB = []);\n baseMergeDeep(object, source, key, baseMerge, customizer, stackA, stackB);\n }\n else {\n var value = object[key],\n result = customizer ? customizer(value, srcValue, key, object, source) : undefined,\n isCommon = result === undefined;\n\n if (isCommon) {\n result = srcValue;\n }\n if ((result !== undefined || (isSrcArr && !(key in object))) &&\n (isCommon || (result === result ? (result !== value) : (value === value)))) {\n object[key] = result;\n }\n }\n });\n return object;\n}\n\nmodule.exports = baseMerge;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/internal/baseMerge.js\n ** module id = 38\n ** module chunks = 0\n **/","/**\n * A specialized version of `_.forEach` for arrays without support for callback\n * shorthands and `this` binding.\n *\n * @private\n * @param {Array} array The array to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Array} Returns `array`.\n */\nfunction arrayEach(array, iteratee) {\n var index = -1,\n length = array.length;\n\n while (++index < length) {\n if (iteratee(array[index], index, array) === false) {\n break;\n }\n }\n return array;\n}\n\nmodule.exports = arrayEach;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/internal/arrayEach.js\n ** module id = 39\n ** module chunks = 0\n **/","var arrayCopy = require('./arrayCopy'),\n isArguments = require('../lang/isArguments'),\n isArray = require('../lang/isArray'),\n isArrayLike = require('./isArrayLike'),\n isPlainObject = require('../lang/isPlainObject'),\n isTypedArray = require('../lang/isTypedArray'),\n toPlainObject = require('../lang/toPlainObject');\n\n/**\n * A specialized version of `baseMerge` for arrays and objects which performs\n * deep merges and tracks traversed objects enabling objects with circular\n * references to be merged.\n *\n * @private\n * @param {Object} object The destination object.\n * @param {Object} source The source object.\n * @param {string} key The key of the value to merge.\n * @param {Function} mergeFunc The function to merge values.\n * @param {Function} [customizer] The function to customize merged values.\n * @param {Array} [stackA=[]] Tracks traversed source objects.\n * @param {Array} [stackB=[]] Associates values with source counterparts.\n * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.\n */\nfunction baseMergeDeep(object, source, key, mergeFunc, customizer, stackA, stackB) {\n var length = stackA.length,\n srcValue = source[key];\n\n while (length--) {\n if (stackA[length] == srcValue) {\n object[key] = stackB[length];\n return;\n }\n }\n var value = object[key],\n result = customizer ? customizer(value, srcValue, key, object, source) : undefined,\n isCommon = result === undefined;\n\n if (isCommon) {\n result = srcValue;\n if (isArrayLike(srcValue) && (isArray(srcValue) || isTypedArray(srcValue))) {\n result = isArray(value)\n ? value\n : (isArrayLike(value) ? arrayCopy(value) : []);\n }\n else if (isPlainObject(srcValue) || isArguments(srcValue)) {\n result = isArguments(value)\n ? toPlainObject(value)\n : (isPlainObject(value) ? value : {});\n }\n else {\n isCommon = false;\n }\n }\n // Add the source value to the stack of traversed objects and associate\n // it with its merged value.\n stackA.push(srcValue);\n stackB.push(result);\n\n if (isCommon) {\n // Recursively merge objects and arrays (susceptible to call stack limits).\n object[key] = mergeFunc(result, srcValue, customizer, stackA, stackB);\n } else if (result === result ? (result !== value) : (value === value)) {\n object[key] = result;\n }\n}\n\nmodule.exports = baseMergeDeep;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/internal/baseMergeDeep.js\n ** module id = 40\n ** module chunks = 0\n **/","/**\n * Copies the values of `source` to `array`.\n *\n * @private\n * @param {Array} source The array to copy values from.\n * @param {Array} [array=[]] The array to copy values to.\n * @returns {Array} Returns `array`.\n */\nfunction arrayCopy(source, array) {\n var index = -1,\n length = source.length;\n\n array || (array = Array(length));\n while (++index < length) {\n array[index] = source[index];\n }\n return array;\n}\n\nmodule.exports = arrayCopy;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/internal/arrayCopy.js\n ** module id = 41\n ** module chunks = 0\n **/","var isArrayLike = require('../internal/isArrayLike'),\n isObjectLike = require('../internal/isObjectLike');\n\n/** Used for native method references. */\nvar objectProto = Object.prototype;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/** Native method references. */\nvar propertyIsEnumerable = objectProto.propertyIsEnumerable;\n\n/**\n * Checks if `value` is classified as an `arguments` object.\n *\n * @static\n * @memberOf _\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.\n * @example\n *\n * _.isArguments(function() { return arguments; }());\n * // => true\n *\n * _.isArguments([1, 2, 3]);\n * // => false\n */\nfunction isArguments(value) {\n return isObjectLike(value) && isArrayLike(value) &&\n hasOwnProperty.call(value, 'callee') && !propertyIsEnumerable.call(value, 'callee');\n}\n\nmodule.exports = isArguments;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/lang/isArguments.js\n ** module id = 42\n ** module chunks = 0\n **/","var getLength = require('./getLength'),\n isLength = require('./isLength');\n\n/**\n * Checks if `value` is array-like.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is array-like, else `false`.\n */\nfunction isArrayLike(value) {\n return value != null && isLength(getLength(value));\n}\n\nmodule.exports = isArrayLike;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/internal/isArrayLike.js\n ** module id = 43\n ** module chunks = 0\n **/","var baseProperty = require('./baseProperty');\n\n/**\n * Gets the \"length\" property value of `object`.\n *\n * **Note:** This function is used to avoid a [JIT bug](https://bugs.webkit.org/show_bug.cgi?id=142792)\n * that affects Safari on at least iOS 8.1-8.3 ARM64.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {*} Returns the \"length\" value.\n */\nvar getLength = baseProperty('length');\n\nmodule.exports = getLength;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/internal/getLength.js\n ** module id = 44\n ** module chunks = 0\n **/","/**\n * The base implementation of `_.property` without support for deep paths.\n *\n * @private\n * @param {string} key The key of the property to get.\n * @returns {Function} Returns the new function.\n */\nfunction baseProperty(key) {\n return function(object) {\n return object == null ? undefined : object[key];\n };\n}\n\nmodule.exports = baseProperty;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/internal/baseProperty.js\n ** module id = 45\n ** module chunks = 0\n **/","/**\n * Used as the [maximum length](http://ecma-international.org/ecma-262/6.0/#sec-number.max_safe_integer)\n * of an array-like value.\n */\nvar MAX_SAFE_INTEGER = 9007199254740991;\n\n/**\n * Checks if `value` is a valid array-like length.\n *\n * **Note:** This function is based on [`ToLength`](http://ecma-international.org/ecma-262/6.0/#sec-tolength).\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a valid length, else `false`.\n */\nfunction isLength(value) {\n return typeof value == 'number' && value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER;\n}\n\nmodule.exports = isLength;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/internal/isLength.js\n ** module id = 46\n ** module chunks = 0\n **/","/**\n * Checks if `value` is object-like.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is object-like, else `false`.\n */\nfunction isObjectLike(value) {\n return !!value && typeof value == 'object';\n}\n\nmodule.exports = isObjectLike;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/internal/isObjectLike.js\n ** module id = 47\n ** module chunks = 0\n **/","var getNative = require('../internal/getNative'),\n isLength = require('../internal/isLength'),\n isObjectLike = require('../internal/isObjectLike');\n\n/** `Object#toString` result references. */\nvar arrayTag = '[object Array]';\n\n/** Used for native method references. */\nvar objectProto = Object.prototype;\n\n/**\n * Used to resolve the [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)\n * of values.\n */\nvar objToString = objectProto.toString;\n\n/* Native method references for those with the same name as other `lodash` methods. */\nvar nativeIsArray = getNative(Array, 'isArray');\n\n/**\n * Checks if `value` is classified as an `Array` object.\n *\n * @static\n * @memberOf _\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.\n * @example\n *\n * _.isArray([1, 2, 3]);\n * // => true\n *\n * _.isArray(function() { return arguments; }());\n * // => false\n */\nvar isArray = nativeIsArray || function(value) {\n return isObjectLike(value) && isLength(value.length) && objToString.call(value) == arrayTag;\n};\n\nmodule.exports = isArray;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/lang/isArray.js\n ** module id = 48\n ** module chunks = 0\n **/","var isNative = require('../lang/isNative');\n\n/**\n * Gets the native function at `key` of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {string} key The key of the method to get.\n * @returns {*} Returns the function if it's native, else `undefined`.\n */\nfunction getNative(object, key) {\n var value = object == null ? undefined : object[key];\n return isNative(value) ? value : undefined;\n}\n\nmodule.exports = getNative;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/internal/getNative.js\n ** module id = 49\n ** module chunks = 0\n **/","var isFunction = require('./isFunction'),\n isObjectLike = require('../internal/isObjectLike');\n\n/** Used to detect host constructors (Safari > 5). */\nvar reIsHostCtor = /^\\[object .+?Constructor\\]$/;\n\n/** Used for native method references. */\nvar objectProto = Object.prototype;\n\n/** Used to resolve the decompiled source of functions. */\nvar fnToString = Function.prototype.toString;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/** Used to detect if a method is native. */\nvar reIsNative = RegExp('^' +\n fnToString.call(hasOwnProperty).replace(/[\\\\^$.*+?()[\\]{}|]/g, '\\\\$&')\n .replace(/hasOwnProperty|(function).*?(?=\\\\\\()| for .+?(?=\\\\\\])/g, '$1.*?') + '$'\n);\n\n/**\n * Checks if `value` is a native function.\n *\n * @static\n * @memberOf _\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a native function, else `false`.\n * @example\n *\n * _.isNative(Array.prototype.push);\n * // => true\n *\n * _.isNative(_);\n * // => false\n */\nfunction isNative(value) {\n if (value == null) {\n return false;\n }\n if (isFunction(value)) {\n return reIsNative.test(fnToString.call(value));\n }\n return isObjectLike(value) && reIsHostCtor.test(value);\n}\n\nmodule.exports = isNative;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/lang/isNative.js\n ** module id = 50\n ** module chunks = 0\n **/","var isObject = require('./isObject');\n\n/** `Object#toString` result references. */\nvar funcTag = '[object Function]';\n\n/** Used for native method references. */\nvar objectProto = Object.prototype;\n\n/**\n * Used to resolve the [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)\n * of values.\n */\nvar objToString = objectProto.toString;\n\n/**\n * Checks if `value` is classified as a `Function` object.\n *\n * @static\n * @memberOf _\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.\n * @example\n *\n * _.isFunction(_);\n * // => true\n *\n * _.isFunction(/abc/);\n * // => false\n */\nfunction isFunction(value) {\n // The use of `Object#toString` avoids issues with the `typeof` operator\n // in older versions of Chrome and Safari which return 'function' for regexes\n // and Safari 8 which returns 'object' for typed array constructors.\n return isObject(value) && objToString.call(value) == funcTag;\n}\n\nmodule.exports = isFunction;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/lang/isFunction.js\n ** module id = 51\n ** module chunks = 0\n **/","/**\n * Checks if `value` is the [language type](https://es5.github.io/#x8) of `Object`.\n * (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)\n *\n * @static\n * @memberOf _\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an object, else `false`.\n * @example\n *\n * _.isObject({});\n * // => true\n *\n * _.isObject([1, 2, 3]);\n * // => true\n *\n * _.isObject(1);\n * // => false\n */\nfunction isObject(value) {\n // Avoid a V8 JIT bug in Chrome 19-20.\n // See https://code.google.com/p/v8/issues/detail?id=2291 for more details.\n var type = typeof value;\n return !!value && (type == 'object' || type == 'function');\n}\n\nmodule.exports = isObject;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/lang/isObject.js\n ** module id = 52\n ** module chunks = 0\n **/","var baseForIn = require('../internal/baseForIn'),\n isArguments = require('./isArguments'),\n isObjectLike = require('../internal/isObjectLike');\n\n/** `Object#toString` result references. */\nvar objectTag = '[object Object]';\n\n/** Used for native method references. */\nvar objectProto = Object.prototype;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/**\n * Used to resolve the [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)\n * of values.\n */\nvar objToString = objectProto.toString;\n\n/**\n * Checks if `value` is a plain object, that is, an object created by the\n * `Object` constructor or one with a `[[Prototype]]` of `null`.\n *\n * **Note:** This method assumes objects created by the `Object` constructor\n * have no inherited enumerable properties.\n *\n * @static\n * @memberOf _\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a plain object, else `false`.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * }\n *\n * _.isPlainObject(new Foo);\n * // => false\n *\n * _.isPlainObject([1, 2, 3]);\n * // => false\n *\n * _.isPlainObject({ 'x': 0, 'y': 0 });\n * // => true\n *\n * _.isPlainObject(Object.create(null));\n * // => true\n */\nfunction isPlainObject(value) {\n var Ctor;\n\n // Exit early for non `Object` objects.\n if (!(isObjectLike(value) && objToString.call(value) == objectTag && !isArguments(value)) ||\n (!hasOwnProperty.call(value, 'constructor') && (Ctor = value.constructor, typeof Ctor == 'function' && !(Ctor instanceof Ctor)))) {\n return false;\n }\n // IE < 9 iterates inherited properties before own properties. If the first\n // iterated property is an object's own property then there are no inherited\n // enumerable properties.\n var result;\n // In most environments an object's own properties are iterated before\n // its inherited properties. If the last iterated property is an object's\n // own property then there are no inherited enumerable properties.\n baseForIn(value, function(subValue, key) {\n result = key;\n });\n return result === undefined || hasOwnProperty.call(value, result);\n}\n\nmodule.exports = isPlainObject;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/lang/isPlainObject.js\n ** module id = 53\n ** module chunks = 0\n **/","var baseFor = require('./baseFor'),\n keysIn = require('../object/keysIn');\n\n/**\n * The base implementation of `_.forIn` without support for callback\n * shorthands and `this` binding.\n *\n * @private\n * @param {Object} object The object to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Object} Returns `object`.\n */\nfunction baseForIn(object, iteratee) {\n return baseFor(object, iteratee, keysIn);\n}\n\nmodule.exports = baseForIn;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/internal/baseForIn.js\n ** module id = 54\n ** module chunks = 0\n **/","var createBaseFor = require('./createBaseFor');\n\n/**\n * The base implementation of `baseForIn` and `baseForOwn` which iterates\n * over `object` properties returned by `keysFunc` invoking `iteratee` for\n * each property. Iteratee functions may exit iteration early by explicitly\n * returning `false`.\n *\n * @private\n * @param {Object} object The object to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @param {Function} keysFunc The function to get the keys of `object`.\n * @returns {Object} Returns `object`.\n */\nvar baseFor = createBaseFor();\n\nmodule.exports = baseFor;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/internal/baseFor.js\n ** module id = 55\n ** module chunks = 0\n **/","var toObject = require('./toObject');\n\n/**\n * Creates a base function for `_.forIn` or `_.forInRight`.\n *\n * @private\n * @param {boolean} [fromRight] Specify iterating from right to left.\n * @returns {Function} Returns the new base function.\n */\nfunction createBaseFor(fromRight) {\n return function(object, iteratee, keysFunc) {\n var iterable = toObject(object),\n props = keysFunc(object),\n length = props.length,\n index = fromRight ? length : -1;\n\n while ((fromRight ? index-- : ++index < length)) {\n var key = props[index];\n if (iteratee(iterable[key], key, iterable) === false) {\n break;\n }\n }\n return object;\n };\n}\n\nmodule.exports = createBaseFor;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/internal/createBaseFor.js\n ** module id = 56\n ** module chunks = 0\n **/","var isObject = require('../lang/isObject');\n\n/**\n * Converts `value` to an object if it's not one.\n *\n * @private\n * @param {*} value The value to process.\n * @returns {Object} Returns the object.\n */\nfunction toObject(value) {\n return isObject(value) ? value : Object(value);\n}\n\nmodule.exports = toObject;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/internal/toObject.js\n ** module id = 57\n ** module chunks = 0\n **/","var isArguments = require('../lang/isArguments'),\n isArray = require('../lang/isArray'),\n isIndex = require('../internal/isIndex'),\n isLength = require('../internal/isLength'),\n isObject = require('../lang/isObject');\n\n/** Used for native method references. */\nvar objectProto = Object.prototype;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/**\n * Creates an array of the own and inherited enumerable property names of `object`.\n *\n * **Note:** Non-object values are coerced to objects.\n *\n * @static\n * @memberOf _\n * @category Object\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.keysIn(new Foo);\n * // => ['a', 'b', 'c'] (iteration order is not guaranteed)\n */\nfunction keysIn(object) {\n if (object == null) {\n return [];\n }\n if (!isObject(object)) {\n object = Object(object);\n }\n var length = object.length;\n length = (length && isLength(length) &&\n (isArray(object) || isArguments(object)) && length) || 0;\n\n var Ctor = object.constructor,\n index = -1,\n isProto = typeof Ctor == 'function' && Ctor.prototype === object,\n result = Array(length),\n skipIndexes = length > 0;\n\n while (++index < length) {\n result[index] = (index + '');\n }\n for (var key in object) {\n if (!(skipIndexes && isIndex(key, length)) &&\n !(key == 'constructor' && (isProto || !hasOwnProperty.call(object, key)))) {\n result.push(key);\n }\n }\n return result;\n}\n\nmodule.exports = keysIn;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/object/keysIn.js\n ** module id = 58\n ** module chunks = 0\n **/","/** Used to detect unsigned integer values. */\nvar reIsUint = /^\\d+$/;\n\n/**\n * Used as the [maximum length](http://ecma-international.org/ecma-262/6.0/#sec-number.max_safe_integer)\n * of an array-like value.\n */\nvar MAX_SAFE_INTEGER = 9007199254740991;\n\n/**\n * Checks if `value` is a valid array-like index.\n *\n * @private\n * @param {*} value The value to check.\n * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index.\n * @returns {boolean} Returns `true` if `value` is a valid index, else `false`.\n */\nfunction isIndex(value, length) {\n value = (typeof value == 'number' || reIsUint.test(value)) ? +value : -1;\n length = length == null ? MAX_SAFE_INTEGER : length;\n return value > -1 && value % 1 == 0 && value < length;\n}\n\nmodule.exports = isIndex;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/internal/isIndex.js\n ** module id = 59\n ** module chunks = 0\n **/","var isLength = require('../internal/isLength'),\n isObjectLike = require('../internal/isObjectLike');\n\n/** `Object#toString` result references. */\nvar argsTag = '[object Arguments]',\n arrayTag = '[object Array]',\n boolTag = '[object Boolean]',\n dateTag = '[object Date]',\n errorTag = '[object Error]',\n funcTag = '[object Function]',\n mapTag = '[object Map]',\n numberTag = '[object Number]',\n objectTag = '[object Object]',\n regexpTag = '[object RegExp]',\n setTag = '[object Set]',\n stringTag = '[object String]',\n weakMapTag = '[object WeakMap]';\n\nvar arrayBufferTag = '[object ArrayBuffer]',\n float32Tag = '[object Float32Array]',\n float64Tag = '[object Float64Array]',\n int8Tag = '[object Int8Array]',\n int16Tag = '[object Int16Array]',\n int32Tag = '[object Int32Array]',\n uint8Tag = '[object Uint8Array]',\n uint8ClampedTag = '[object Uint8ClampedArray]',\n uint16Tag = '[object Uint16Array]',\n uint32Tag = '[object Uint32Array]';\n\n/** Used to identify `toStringTag` values of typed arrays. */\nvar typedArrayTags = {};\ntypedArrayTags[float32Tag] = typedArrayTags[float64Tag] =\ntypedArrayTags[int8Tag] = typedArrayTags[int16Tag] =\ntypedArrayTags[int32Tag] = typedArrayTags[uint8Tag] =\ntypedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] =\ntypedArrayTags[uint32Tag] = true;\ntypedArrayTags[argsTag] = typedArrayTags[arrayTag] =\ntypedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] =\ntypedArrayTags[dateTag] = typedArrayTags[errorTag] =\ntypedArrayTags[funcTag] = typedArrayTags[mapTag] =\ntypedArrayTags[numberTag] = typedArrayTags[objectTag] =\ntypedArrayTags[regexpTag] = typedArrayTags[setTag] =\ntypedArrayTags[stringTag] = typedArrayTags[weakMapTag] = false;\n\n/** Used for native method references. */\nvar objectProto = Object.prototype;\n\n/**\n * Used to resolve the [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)\n * of values.\n */\nvar objToString = objectProto.toString;\n\n/**\n * Checks if `value` is classified as a typed array.\n *\n * @static\n * @memberOf _\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.\n * @example\n *\n * _.isTypedArray(new Uint8Array);\n * // => true\n *\n * _.isTypedArray([]);\n * // => false\n */\nfunction isTypedArray(value) {\n return isObjectLike(value) && isLength(value.length) && !!typedArrayTags[objToString.call(value)];\n}\n\nmodule.exports = isTypedArray;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/lang/isTypedArray.js\n ** module id = 60\n ** module chunks = 0\n **/","var baseCopy = require('../internal/baseCopy'),\n keysIn = require('../object/keysIn');\n\n/**\n * Converts `value` to a plain object flattening inherited enumerable\n * properties of `value` to own properties of the plain object.\n *\n * @static\n * @memberOf _\n * @category Lang\n * @param {*} value The value to convert.\n * @returns {Object} Returns the converted plain object.\n * @example\n *\n * function Foo() {\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.assign({ 'a': 1 }, new Foo);\n * // => { 'a': 1, 'b': 2 }\n *\n * _.assign({ 'a': 1 }, _.toPlainObject(new Foo));\n * // => { 'a': 1, 'b': 2, 'c': 3 }\n */\nfunction toPlainObject(value) {\n return baseCopy(value, keysIn(value));\n}\n\nmodule.exports = toPlainObject;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/lang/toPlainObject.js\n ** module id = 61\n ** module chunks = 0\n **/","/**\n * Copies properties of `source` to `object`.\n *\n * @private\n * @param {Object} source The object to copy properties from.\n * @param {Array} props The property names to copy.\n * @param {Object} [object={}] The object to copy properties to.\n * @returns {Object} Returns `object`.\n */\nfunction baseCopy(source, props, object) {\n object || (object = {});\n\n var index = -1,\n length = props.length;\n\n while (++index < length) {\n var key = props[index];\n object[key] = source[key];\n }\n return object;\n}\n\nmodule.exports = baseCopy;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/internal/baseCopy.js\n ** module id = 62\n ** module chunks = 0\n **/","var getNative = require('../internal/getNative'),\n isArrayLike = require('../internal/isArrayLike'),\n isObject = require('../lang/isObject'),\n shimKeys = require('../internal/shimKeys');\n\n/* Native method references for those with the same name as other `lodash` methods. */\nvar nativeKeys = getNative(Object, 'keys');\n\n/**\n * Creates an array of the own enumerable property names of `object`.\n *\n * **Note:** Non-object values are coerced to objects. See the\n * [ES spec](http://ecma-international.org/ecma-262/6.0/#sec-object.keys)\n * for more details.\n *\n * @static\n * @memberOf _\n * @category Object\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.keys(new Foo);\n * // => ['a', 'b'] (iteration order is not guaranteed)\n *\n * _.keys('hi');\n * // => ['0', '1']\n */\nvar keys = !nativeKeys ? shimKeys : function(object) {\n var Ctor = object == null ? undefined : object.constructor;\n if ((typeof Ctor == 'function' && Ctor.prototype === object) ||\n (typeof object != 'function' && isArrayLike(object))) {\n return shimKeys(object);\n }\n return isObject(object) ? nativeKeys(object) : [];\n};\n\nmodule.exports = keys;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/object/keys.js\n ** module id = 63\n ** module chunks = 0\n **/","var isArguments = require('../lang/isArguments'),\n isArray = require('../lang/isArray'),\n isIndex = require('./isIndex'),\n isLength = require('./isLength'),\n keysIn = require('../object/keysIn');\n\n/** Used for native method references. */\nvar objectProto = Object.prototype;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/**\n * A fallback implementation of `Object.keys` which creates an array of the\n * own enumerable property names of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n */\nfunction shimKeys(object) {\n var props = keysIn(object),\n propsLength = props.length,\n length = propsLength && object.length;\n\n var allowIndexes = !!length && isLength(length) &&\n (isArray(object) || isArguments(object));\n\n var index = -1,\n result = [];\n\n while (++index < propsLength) {\n var key = props[index];\n if ((allowIndexes && isIndex(key, length)) || hasOwnProperty.call(object, key)) {\n result.push(key);\n }\n }\n return result;\n}\n\nmodule.exports = shimKeys;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/internal/shimKeys.js\n ** module id = 64\n ** module chunks = 0\n **/","var bindCallback = require('./bindCallback'),\n isIterateeCall = require('./isIterateeCall'),\n restParam = require('../function/restParam');\n\n/**\n * Creates a `_.assign`, `_.defaults`, or `_.merge` function.\n *\n * @private\n * @param {Function} assigner The function to assign values.\n * @returns {Function} Returns the new assigner function.\n */\nfunction createAssigner(assigner) {\n return restParam(function(object, sources) {\n var index = -1,\n length = object == null ? 0 : sources.length,\n customizer = length > 2 ? sources[length - 2] : undefined,\n guard = length > 2 ? sources[2] : undefined,\n thisArg = length > 1 ? sources[length - 1] : undefined;\n\n if (typeof customizer == 'function') {\n customizer = bindCallback(customizer, thisArg, 5);\n length -= 2;\n } else {\n customizer = typeof thisArg == 'function' ? thisArg : undefined;\n length -= (customizer ? 1 : 0);\n }\n if (guard && isIterateeCall(sources[0], sources[1], guard)) {\n customizer = length < 3 ? undefined : customizer;\n length = 1;\n }\n while (++index < length) {\n var source = sources[index];\n if (source) {\n assigner(object, source, customizer);\n }\n }\n return object;\n });\n}\n\nmodule.exports = createAssigner;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/internal/createAssigner.js\n ** module id = 65\n ** module chunks = 0\n **/","var identity = require('../utility/identity');\n\n/**\n * A specialized version of `baseCallback` which only supports `this` binding\n * and specifying the number of arguments to provide to `func`.\n *\n * @private\n * @param {Function} func The function to bind.\n * @param {*} thisArg The `this` binding of `func`.\n * @param {number} [argCount] The number of arguments to provide to `func`.\n * @returns {Function} Returns the callback.\n */\nfunction bindCallback(func, thisArg, argCount) {\n if (typeof func != 'function') {\n return identity;\n }\n if (thisArg === undefined) {\n return func;\n }\n switch (argCount) {\n case 1: return function(value) {\n return func.call(thisArg, value);\n };\n case 3: return function(value, index, collection) {\n return func.call(thisArg, value, index, collection);\n };\n case 4: return function(accumulator, value, index, collection) {\n return func.call(thisArg, accumulator, value, index, collection);\n };\n case 5: return function(value, other, key, object, source) {\n return func.call(thisArg, value, other, key, object, source);\n };\n }\n return function() {\n return func.apply(thisArg, arguments);\n };\n}\n\nmodule.exports = bindCallback;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/internal/bindCallback.js\n ** module id = 66\n ** module chunks = 0\n **/","/**\n * This method returns the first argument provided to it.\n *\n * @static\n * @memberOf _\n * @category Utility\n * @param {*} value Any value.\n * @returns {*} Returns `value`.\n * @example\n *\n * var object = { 'user': 'fred' };\n *\n * _.identity(object) === object;\n * // => true\n */\nfunction identity(value) {\n return value;\n}\n\nmodule.exports = identity;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/utility/identity.js\n ** module id = 67\n ** module chunks = 0\n **/","var isArrayLike = require('./isArrayLike'),\n isIndex = require('./isIndex'),\n isObject = require('../lang/isObject');\n\n/**\n * Checks if the provided arguments are from an iteratee call.\n *\n * @private\n * @param {*} value The potential iteratee value argument.\n * @param {*} index The potential iteratee index or key argument.\n * @param {*} object The potential iteratee object argument.\n * @returns {boolean} Returns `true` if the arguments are from an iteratee call, else `false`.\n */\nfunction isIterateeCall(value, index, object) {\n if (!isObject(object)) {\n return false;\n }\n var type = typeof index;\n if (type == 'number'\n ? (isArrayLike(object) && isIndex(index, object.length))\n : (type == 'string' && index in object)) {\n var other = object[index];\n return value === value ? (value === other) : (other !== other);\n }\n return false;\n}\n\nmodule.exports = isIterateeCall;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/internal/isIterateeCall.js\n ** module id = 68\n ** module chunks = 0\n **/","/** Used as the `TypeError` message for \"Functions\" methods. */\nvar FUNC_ERROR_TEXT = 'Expected a function';\n\n/* Native method references for those with the same name as other `lodash` methods. */\nvar nativeMax = Math.max;\n\n/**\n * Creates a function that invokes `func` with the `this` binding of the\n * created function and arguments from `start` and beyond provided as an array.\n *\n * **Note:** This method is based on the [rest parameter](https://developer.mozilla.org/Web/JavaScript/Reference/Functions/rest_parameters).\n *\n * @static\n * @memberOf _\n * @category Function\n * @param {Function} func The function to apply a rest parameter to.\n * @param {number} [start=func.length-1] The start position of the rest parameter.\n * @returns {Function} Returns the new function.\n * @example\n *\n * var say = _.restParam(function(what, names) {\n * return what + ' ' + _.initial(names).join(', ') +\n * (_.size(names) > 1 ? ', & ' : '') + _.last(names);\n * });\n *\n * say('hello', 'fred', 'barney', 'pebbles');\n * // => 'hello fred, barney, & pebbles'\n */\nfunction restParam(func, start) {\n if (typeof func != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n start = nativeMax(start === undefined ? (func.length - 1) : (+start || 0), 0);\n return function() {\n var args = arguments,\n index = -1,\n length = nativeMax(args.length - start, 0),\n rest = Array(length);\n\n while (++index < length) {\n rest[index] = args[start + index];\n }\n switch (start) {\n case 0: return func.call(this, rest);\n case 1: return func.call(this, args[0], rest);\n case 2: return func.call(this, args[0], args[1], rest);\n }\n var otherArgs = Array(start + 1);\n index = -1;\n while (++index < start) {\n otherArgs[index] = args[index];\n }\n otherArgs[start] = rest;\n return func.apply(this, otherArgs);\n };\n}\n\nmodule.exports = restParam;\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/lodash/function/restParam.js\n ** module id = 69\n ** module chunks = 0\n **/","import CVUtils from './cv_utils';\n\nvar FrameGrabber = {};\n\nFrameGrabber.create = function(inputStream, canvas) {\n var _that = {},\n _streamConfig = inputStream.getConfig(),\n _video_size = CVUtils.imageRef(inputStream.getRealWidth(), inputStream.getRealHeight()),\n _canvasSize = inputStream.getCanvasSize(),\n _size = CVUtils.imageRef(inputStream.getWidth(), inputStream.getHeight()),\n topRight = inputStream.getTopRight(),\n _sx = topRight.x,\n _sy = topRight.y,\n _canvas,\n _ctx = null,\n _data = null;\n\n _canvas = canvas ? canvas : document.createElement(\"canvas\");\n _canvas.width = _canvasSize.x;\n _canvas.height = _canvasSize.y;\n _ctx = _canvas.getContext(\"2d\");\n _data = new Uint8Array(_size.x * _size.y);\n console.log(\"FrameGrabber\", JSON.stringify({\n size: _size,\n topRight: topRight,\n videoSize: _video_size,\n canvasSize: _canvasSize\n }));\n\n /**\n * Uses the given array as frame-buffer\n */\n _that.attachData = function(data) {\n _data = data;\n };\n\n /**\n * Returns the used frame-buffer\n */\n _that.getData = function() {\n return _data;\n };\n\n /**\n * Fetches a frame from the input-stream and puts into the frame-buffer.\n * The image-data is converted to gray-scale and then half-sampled if configured.\n */\n _that.grab = function() {\n var doHalfSample = _streamConfig.halfSample,\n frame = inputStream.getFrame(),\n ctxData;\n if (frame) {\n _ctx.drawImage(frame, 0, 0, _canvasSize.x, _canvasSize.y);\n ctxData = _ctx.getImageData(_sx, _sy, _size.x, _size.y).data;\n if(doHalfSample){\n CVUtils.grayAndHalfSampleFromCanvasData(ctxData, _size, _data);\n } else {\n CVUtils.computeGray(ctxData, _data, _streamConfig);\n }\n return true;\n } else {\n return false;\n }\n };\n\n _that.getSize = function() {\n return _size;\n };\n\n return _that;\n};\n\nexport default FrameGrabber;\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/frame_grabber.js\n **/","export default {\n inputStream: {\n name: \"Live\",\n type: \"LiveStream\",\n constraints: {\n width: 640,\n height: 480,\n minAspectRatio: 0,\n maxAspectRatio: 100,\n facing: \"environment\" // or user\n },\n area: {\n top: \"0%\",\n right: \"0%\",\n left: \"0%\",\n bottom: \"0%\"\n },\n singleChannel: false // true: only the red color-channel is read\n },\n tracking: false,\n debug: false,\n controls: false,\n locate: true,\n numOfWorkers: 4,\n visual: {\n show: true\n },\n decoder: {\n drawBoundingBox: false,\n showFrequency: false,\n drawScanline: false,\n showPattern: false,\n readers: [\n 'code_128_reader'\n ]\n },\n locator: {\n halfSample: true,\n patchSize: \"medium\", // x-small, small, medium, large, x-large\n showCanvas: false,\n showPatches: false,\n showFoundPatches: false,\n showSkeleton: false,\n showLabels: false,\n showPatchLabels: false,\n showRemainingPatchLabels: false,\n boxFromPatches: {\n showTransformed: false,\n showTransformedBox: false,\n showBB: false\n }\n }\n};\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/config.js\n **/","export default function() {\n var events = {};\n\n function getEvent(eventName) {\n if (!events[eventName]) {\n events[eventName] = {\n subscribers : []\n };\n }\n return events[eventName];\n }\n\n function clearEvents(){\n events = {};\n }\n\n function publishSubscription(subscription, data) {\n if (subscription.async) {\n setTimeout(function() {\n subscription.callback(data);\n }, 4);\n } else {\n subscription.callback(data);\n }\n }\n\n function subscribe(event, callback, async) {\n var subscription;\n\n if ( typeof callback === \"function\") {\n subscription = {\n callback : callback,\n async : async\n };\n } else {\n subscription = callback;\n if (!subscription.callback) {\n throw \"Callback was not specified on options\";\n }\n }\n\n getEvent(event).subscribers.push(subscription);\n }\n\n return {\n subscribe : function(event, callback, async) {\n return subscribe(event, callback, async);\n },\n publish : function(eventName, data) {\n var event = getEvent(eventName),\n subscribers = event.subscribers;\n\n event.subscribers = subscribers.filter(function(subscriber) {\n publishSubscription(subscriber, data);\n return !subscriber.once;\n });\n },\n once: function(event, callback, async) {\n subscribe(event, {\n callback: callback,\n async: async,\n once: true\n });\n },\n unsubscribe: function(eventName, callback) {\n var event;\n\n if (eventName) {\n event = getEvent(eventName);\n if (event && callback) {\n event.subscribers = event.subscribers.filter(function(subscriber){\n return subscriber.callback !== callback;\n });\n } else {\n event.subscribers = [];\n }\n } else {\n clearEvents();\n }\n }\n };\n}();\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/events.js\n **/","const merge = require('lodash/object/merge');\n\nvar streamRef,\n loadedDataHandler;\n\n/**\n * Wraps browser-specific getUserMedia\n * @param {Object} constraints\n * @param {Object} success Callback\n * @param {Object} failure Callback\n */\nfunction getUserMedia(constraints, success, failure) {\n if (typeof navigator.getUserMedia !== 'undefined') {\n navigator.getUserMedia(constraints, function (stream) {\n streamRef = stream;\n var videoSrc = (window.URL && window.URL.createObjectURL(stream)) || stream;\n success.apply(null, [videoSrc]);\n }, failure);\n } else {\n failure(new TypeError(\"getUserMedia not available\"));\n }\n}\n\nfunction loadedData(video, callback) {\n var attempts = 10;\n\n function checkVideo() {\n if (attempts > 0) {\n if (video.videoWidth > 0 && video.videoHeight > 0) {\n console.log(video.videoWidth + \"px x \" + video.videoHeight + \"px\");\n callback();\n } else {\n window.setTimeout(checkVideo, 500);\n }\n } else {\n callback('Unable to play video stream. 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-t[8]=(p*b-v*x+m*y)*D,t):null},o.str=function(t){return"mat3("+t[0]+", "+t[1]+", "+t[2]+", "+t[3]+", "+t[4]+", "+t[5]+", "+t[6]+", "+t[7]+", "+t[8]+")"},o.frob=function(t){return Math.sqrt(Math.pow(t[0],2)+Math.pow(t[1],2)+Math.pow(t[2],2)+Math.pow(t[3],2)+Math.pow(t[4],2)+Math.pow(t[5],2)+Math.pow(t[6],2)+Math.pow(t[7],2)+Math.pow(t[8],2))},t.exports=o},function(t,e,n){var r=n(10),o={};o.create=function(){var t=new r.ARRAY_TYPE(16);return t[0]=1,t[1]=0,t[2]=0,t[3]=0,t[4]=0,t[5]=1,t[6]=0,t[7]=0,t[8]=0,t[9]=0,t[10]=1,t[11]=0,t[12]=0,t[13]=0,t[14]=0,t[15]=1,t},o.clone=function(t){var e=new r.ARRAY_TYPE(16);return e[0]=t[0],e[1]=t[1],e[2]=t[2],e[3]=t[3],e[4]=t[4],e[5]=t[5],e[6]=t[6],e[7]=t[7],e[8]=t[8],e[9]=t[9],e[10]=t[10],e[11]=t[11],e[12]=t[12],e[13]=t[13],e[14]=t[14],e[15]=t[15],e},o.copy=function(t,e){return t[0]=e[0],t[1]=e[1],t[2]=e[2],t[3]=e[3],t[4]=e[4],t[5]=e[5],t[6]=e[6],t[7]=e[7],t[8]=e[8],t[9]=e[9],t[10]=e[10],t[11]=e[11],t[12]=e[12],t[13]=e[13],t[14]=e[14],t[15]=e[15],t},o.identity=function(t){return t[0]=1,t[1]=0,t[2]=0,t[3]=0,t[4]=0,t[5]=1,t[6]=0,t[7]=0,t[8]=0,t[9]=0,t[10]=1,t[11]=0,t[12]=0,t[13]=0,t[14]=0,t[15]=1,t},o.transpose=function(t,e){if(t===e){var n=e[1],r=e[2],o=e[3],a=e[6],i=e[7],u=e[11];t[1]=e[4],t[2]=e[8],t[3]=e[12],t[4]=n,t[6]=e[9],t[7]=e[13],t[8]=r,t[9]=a,t[11]=e[14],t[12]=o,t[13]=i,t[14]=u}else t[0]=e[0],t[1]=e[4],t[2]=e[8],t[3]=e[12],t[4]=e[1],t[5]=e[5],t[6]=e[9],t[7]=e[13],t[8]=e[2],t[9]=e[6],t[10]=e[10],t[11]=e[14],t[12]=e[3],t[13]=e[7],t[14]=e[11],t[15]=e[15];return t},o.invert=function(t,e){var n=e[0],r=e[1],o=e[2],a=e[3],i=e[4],u=e[5],c=e[6],f=e[7],l=e[8],s=e[9],d=e[10],h=e[11],p=e[12],v=e[13],g=e[14],m=e[15],y=n*u-r*i,_=n*c-o*i,x=n*f-a*i,M=r*c-o*u,b=r*f-a*u,w=o*f-a*c,R=l*v-s*p,A=l*g-d*p,E=l*m-h*p,C=s*g-d*v,O=s*m-h*v,T=d*m-h*g,D=y*T-_*O+x*C+M*E-b*A+w*R;return D?(D=1/D,t[0]=(u*T-c*O+f*C)*D,t[1]=(o*O-r*T-a*C)*D,t[2]=(v*w-g*b+m*M)*D,t[3]=(d*b-s*w-h*M)*D,t[4]=(c*E-i*T-f*A)*D,t[5]=(n*T-o*E+a*A)*D,t[6]=(g*x-p*w-m*_)*D,t[7]=(l*w-d*x+h*_)*D,t[8]=(i*O-u*E+f*R)*D,t[9]=(r*E-n*O-a*R)*D,t[10]=(p*b-v*x+m*y)*D,t[11]=(s*x-l*b-h*y)*D,t[12]=(u*A-i*C-c*R)*D,t[13]=(n*C-r*A+o*R)*D,t[14]=(v*_-p*M-g*y)*D,t[15]=(l*M-s*_+d*y)*D,t):null},o.adjoint=function(t,e){var n=e[0],r=e[1],o=e[2],a=e[3],i=e[4],u=e[5],c=e[6],f=e[7],l=e[8],s=e[9],d=e[10],h=e[11],p=e[12],v=e[13],g=e[14],m=e[15];return t[0]=u*(d*m-h*g)-s*(c*m-f*g)+v*(c*h-f*d),t[1]=-(r*(d*m-h*g)-s*(o*m-a*g)+v*(o*h-a*d)),t[2]=r*(c*m-f*g)-u*(o*m-a*g)+v*(o*f-a*c),t[3]=-(r*(c*h-f*d)-u*(o*h-a*d)+s*(o*f-a*c)),t[4]=-(i*(d*m-h*g)-l*(c*m-f*g)+p*(c*h-f*d)),t[5]=n*(d*m-h*g)-l*(o*m-a*g)+p*(o*h-a*d),t[6]=-(n*(c*m-f*g)-i*(o*m-a*g)+p*(o*f-a*c)),t[7]=n*(c*h-f*d)-i*(o*h-a*d)+l*(o*f-a*c),t[8]=i*(s*m-h*v)-l*(u*m-f*v)+p*(u*h-f*s),t[9]=-(n*(s*m-h*v)-l*(r*m-a*v)+p*(r*h-a*s)),t[10]=n*(u*m-f*v)-i*(r*m-a*v)+p*(r*f-a*u),t[11]=-(n*(u*h-f*s)-i*(r*h-a*s)+l*(r*f-a*u)),t[12]=-(i*(s*g-d*v)-l*(u*g-c*v)+p*(u*d-c*s)),t[13]=n*(s*g-d*v)-l*(r*g-o*v)+p*(r*d-o*s),t[14]=-(n*(u*g-c*v)-i*(r*g-o*v)+p*(r*c-o*u)),t[15]=n*(u*d-c*s)-i*(r*d-o*s)+l*(r*c-o*u),t},o.determinant=function(t){var e=t[0],n=t[1],r=t[2],o=t[3],a=t[4],i=t[5],u=t[6],c=t[7],f=t[8],l=t[9],s=t[10],d=t[11],h=t[12],p=t[13],v=t[14],g=t[15],m=e*i-n*a,y=e*u-r*a,_=e*c-o*a,x=n*u-r*i,M=n*c-o*i,b=r*c-o*u,w=f*p-l*h,R=f*v-s*h,A=f*g-d*h,E=l*v-s*p,C=l*g-d*p,O=s*g-d*v;return m*O-y*C+_*E+x*A-M*R+b*w},o.multiply=function(t,e,n){var r=e[0],o=e[1],a=e[2],i=e[3],u=e[4],c=e[5],f=e[6],l=e[7],s=e[8],d=e[9],h=e[10],p=e[11],v=e[12],g=e[13],m=e[14],y=e[15],_=n[0],x=n[1],M=n[2],b=n[3];return t[0]=_*r+x*u+M*s+b*v,t[1]=_*o+x*c+M*d+b*g,t[2]=_*a+x*f+M*h+b*m,t[3]=_*i+x*l+M*p+b*y,_=n[4],x=n[5],M=n[6],b=n[7],t[4]=_*r+x*u+M*s+b*v,t[5]=_*o+x*c+M*d+b*g,t[6]=_*a+x*f+M*h+b*m,t[7]=_*i+x*l+M*p+b*y,_=n[8],x=n[9],M=n[10],b=n[11],t[8]=_*r+x*u+M*s+b*v,t[9]=_*o+x*c+M*d+b*g,t[10]=_*a+x*f+M*h+b*m,t[11]=_*i+x*l+M*p+b*y,_=n[12],x=n[13],M=n[14],b=n[15],t[12]=_*r+x*u+M*s+b*v,t[13]=_*o+x*c+M*d+b*g,t[14]=_*a+x*f+M*h+b*m,t[15]=_*i+x*l+M*p+b*y,t},o.mul=o.multiply,o.translate=function(t,e,n){var r,o,a,i,u,c,f,l,s,d,h,p,v=n[0],g=n[1],m=n[2];return e===t?(t[12]=e[0]*v+e[4]*g+e[8]*m+e[12],t[13]=e[1]*v+e[5]*g+e[9]*m+e[13],t[14]=e[2]*v+e[6]*g+e[10]*m+e[14],t[15]=e[3]*v+e[7]*g+e[11]*m+e[15]):(r=e[0],o=e[1],a=e[2],i=e[3],u=e[4],c=e[5],f=e[6],l=e[7],s=e[8],d=e[9],h=e[10],p=e[11],t[0]=r,t[1]=o,t[2]=a,t[3]=i,t[4]=u,t[5]=c,t[6]=f,t[7]=l,t[8]=s,t[9]=d,t[10]=h,t[11]=p,t[12]=r*v+u*g+s*m+e[12],t[13]=o*v+c*g+d*m+e[13],t[14]=a*v+f*g+h*m+e[14],t[15]=i*v+l*g+p*m+e[15]),t},o.scale=function(t,e,n){var r=n[0],o=n[1],a=n[2];return t[0]=e[0]*r,t[1]=e[1]*r,t[2]=e[2]*r,t[3]=e[3]*r,t[4]=e[4]*o,t[5]=e[5]*o,t[6]=e[6]*o,t[7]=e[7]*o,t[8]=e[8]*a,t[9]=e[9]*a,t[10]=e[10]*a,t[11]=e[11]*a,t[12]=e[12],t[13]=e[13],t[14]=e[14],t[15]=e[15],t},o.rotate=function(t,e,n,o){var a,i,u,c,f,l,s,d,h,p,v,g,m,y,_,x,M,b,w,R,A,E,C,O,T=o[0],D=o[1],S=o[2],P=Math.sqrt(T*T+D*D+S*S);return Math.abs(P)c?(a.cross(t,e,o),a.length(t)<1e-6&&a.cross(t,n,o),a.normalize(t,t),u.setAxisAngle(r,t,Math.PI),r):c>.999999?(r[0]=0,r[1]=0,r[2]=0,r[3]=1,r):(a.cross(t,o,i),r[0]=t[0],r[1]=t[1],r[2]=t[2],r[3]=1+c,u.normalize(r,r))}}(),u.setAxes=function(){var t=o.create();return function(e,n,r,o){return t[0]=r[0],t[3]=r[1],t[6]=r[2],t[1]=o[0],t[4]=o[1],t[7]=o[2],t[2]=-n[0],t[5]=-n[1],t[8]=-n[2],u.normalize(e,u.fromMat3(e,t))}}(),u.clone=i.clone,u.fromValues=i.fromValues,u.copy=i.copy,u.set=i.set,u.identity=function(t){return t[0]=0,t[1]=0,t[2]=0,t[3]=1,t},u.setAxisAngle=function(t,e,n){n=.5*n;var r=Math.sin(n);return t[0]=r*e[0],t[1]=r*e[1],t[2]=r*e[2],t[3]=Math.cos(n),t},u.add=i.add,u.multiply=function(t,e,n){var r=e[0],o=e[1],a=e[2],i=e[3],u=n[0],c=n[1],f=n[2],l=n[3];return t[0]=r*l+i*u+o*f-a*c,t[1]=o*l+i*c+a*u-r*f,t[2]=a*l+i*f+r*c-o*u,t[3]=i*l-r*u-o*c-a*f,t},u.mul=u.multiply,u.scale=i.scale,u.rotateX=function(t,e,n){n*=.5;var r=e[0],o=e[1],a=e[2],i=e[3],u=Math.sin(n),c=Math.cos(n);return t[0]=r*c+i*u,t[1]=o*c+a*u,t[2]=a*c-o*u,t[3]=i*c-r*u,t},u.rotateY=function(t,e,n){n*=.5;var r=e[0],o=e[1],a=e[2],i=e[3],u=Math.sin(n),c=Math.cos(n);return t[0]=r*c-a*u,t[1]=o*c+i*u,t[2]=a*c+r*u,t[3]=i*c-o*u,t},u.rotateZ=function(t,e,n){n*=.5;var r=e[0],o=e[1],a=e[2],i=e[3],u=Math.sin(n),c=Math.cos(n);return t[0]=r*c+o*u,t[1]=o*c-r*u,t[2]=a*c+i*u,t[3]=i*c-a*u,t},u.calculateW=function(t,e){var n=e[0],r=e[1],o=e[2];return t[0]=n,t[1]=r,t[2]=o,t[3]=Math.sqrt(Math.abs(1-n*n-r*r-o*o)),t},u.dot=i.dot,u.lerp=i.lerp,u.slerp=function(t,e,n,r){var o,a,i,u,c,f=e[0],l=e[1],s=e[2],d=e[3],h=n[0],p=n[1],v=n[2],g=n[3];return a=f*h+l*p+s*v+d*g,0>a&&(a=-a,h=-h,p=-p,v=-v,g=-g),1-a>1e-6?(o=Math.acos(a),i=Math.sin(o),u=Math.sin((1-r)*o)/i,c=Math.sin(r*o)/i):(u=1-r,c=r),t[0]=u*f+c*h,t[1]=u*l+c*p,t[2]=u*s+c*v,t[3]=u*d+c*g,t},u.sqlerp=function(){var t=u.create(),e=u.create();return function(n,r,o,a,i,c){return u.slerp(t,r,i,c),u.slerp(e,o,a,c),u.slerp(n,t,e,2*c*(1-c)),n}}(),u.invert=function(t,e){var 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a=n(28),i=r(a),u={CODE_L_START:{value:0},MODULO:{value:7},CODE_G_START:{value:10},START_PATTERN:{value:[1/3*7,1/3*7,1/3*7]},STOP_PATTERN:{value:[1/3*7,1/3*7,1/3*7]},MIDDLE_PATTERN:{value:[.2*7,.2*7,.2*7,.2*7,.2*7]},CODE_PATTERN:{value:[[3,2,1,1],[2,2,2,1],[2,1,2,2],[1,4,1,1],[1,1,3,2],[1,2,3,1],[1,1,1,4],[1,3,1,2],[1,2,1,3],[3,1,1,2],[1,1,2,3],[1,2,2,2],[2,2,1,2],[1,1,4,1],[2,3,1,1],[1,3,2,1],[4,1,1,1],[2,1,3,1],[3,1,2,1],[2,1,1,3]]},CODE_FREQUENCY:{value:[0,11,13,14,19,25,28,21,22,26]},SINGLE_CODE_ERROR:{value:.67},AVG_CODE_ERROR:{value:.27},FORMAT:{value:"ean_13",writeable:!1}};o.prototype=Object.create(i["default"].prototype,u),o.prototype.constructor=o,o.prototype._decodeCode=function(t,e){var n,r,o,a,i=[0,0,0,0],u=this,c=t,f=!u._row[c],l=0,s={error:Number.MAX_VALUE,code:-1,start:t,end:t};for(e||(e=u.CODE_PATTERN.length),n=c;nr;r++)o=u._matchPattern(a,u.CODE_PATTERN[r]),ou.AVG_CODE_ERROR?null:s}}else l++;i[l]=1,f=!f}return null},o.prototype._findPattern=function(t,e,n,r,o){var a,i,u,c,f,l=[],s=this,d=0,h={error:Number.MAX_VALUE,code:-1,start:0,end:0};for(e||(e=s._nextSet(s._row)),void 0===n&&(n=!1),void 0===r&&(r=!0),void 0===o&&(o=s.AVG_CODE_ERROR),a=0;ai))return h.error=i,h.start=a-c,h.end=a,h;if(!r)return null;for(u=0;u=0&&n._matchRange(t,e.start,0))return e;r=e.end,e=null}},o.prototype._verifyTrailingWhitespace=function(t){var e,n=this;return e=t.end+(t.end-t.start),er;r++){if(t=a._decodeCode(t.end),!t)return null;t.code>=a.CODE_G_START?(t.code=t.code-a.CODE_G_START,i|=1<<5-r):i|=0<<5-r,e.push(t.code),n.push(t)}if(o=a._calculateFirstDigit(i),null===o)return null;if(e.unshift(o),t=a._findPattern(a.MIDDLE_PATTERN,t.end,!0,!1),null===t)return null;for(n.push(t),r=0;6>r;r++){if(t=a._decodeCode(t.end,a.CODE_G_START),!t)return null;n.push(t),e.push(t.code)}return t},o.prototype._decode=function(){var t,e,n=this,r=[],o=[];return(t=n._findStart())?(e={code:t.code,start:t.start,end:t.end},o.push(e),(e=n._decodePayload(e,r,o))&&(e=n._findEnd(e.end,!1))?(o.push(e),n._checksum(r)?{code:r.join(""),start:t.start,end:e.end,codeset:"",startInfo:t,decodedCodes:o}:null):null):null},o.prototype._checksum=function(t){var e,n=0;for(e=t.length-2;e>=0;e-=2)n+=t[e];for(n*=3,e=t.length-1;e>=0;e-=2)n+=t[e];return n%10===0},e["default"]=o,t.exports=e["default"]},function(t,e,n){"use strict";function r(t){return t&&t.__esModule?t:{"default":t}}function o(){i["default"].call(this)}Object.defineProperty(e,"__esModule",{value:!0});var a=n(28),i=r(a),u=n(19),c=r(u),f={ALPHABETH_STRING:{value:"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ-. 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a=n(28),i=r(a),u={ALPHABETH_STRING:{value:"0123456789-$:/.+ABCD"},ALPHABET:{value:[48,49,50,51,52,53,54,55,56,57,45,36,58,47,46,43,65,66,67,68]},CHARACTER_ENCODINGS:{value:[3,6,9,96,18,66,33,36,48,72,12,24,69,81,84,21,26,41,11,14]},START_END:{value:[26,41,11,14]},MIN_ENCODED_CHARS:{value:4},MAX_ACCEPTABLE:{value:2},PADDING:{value:1.5},FORMAT:{value:"codabar",writeable:!1}};o.prototype=Object.create(i["default"].prototype,u),o.prototype.constructor=o,o.prototype._decode=function(){var t,e,n,r,o,a=this,i=[];if(this._counters=a._fillCounters(),t=a._findStart(),!t)return null;r=t.startCounter;do{if(n=a._toPattern(r),0>n)return null;if(e=a._patternToChar(n),0>e)return 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t[0]=u*(d*m-h*g)-s*(c*m-f*g)+v*(c*h-f*d),t[1]=-(r*(d*m-h*g)-s*(o*m-a*g)+v*(o*h-a*d)),t[2]=r*(c*m-f*g)-u*(o*m-a*g)+v*(o*f-a*c),t[3]=-(r*(c*h-f*d)-u*(o*h-a*d)+s*(o*f-a*c)),t[4]=-(i*(d*m-h*g)-l*(c*m-f*g)+p*(c*h-f*d)),t[5]=n*(d*m-h*g)-l*(o*m-a*g)+p*(o*h-a*d),t[6]=-(n*(c*m-f*g)-i*(o*m-a*g)+p*(o*f-a*c)),t[7]=n*(c*h-f*d)-i*(o*h-a*d)+l*(o*f-a*c),t[8]=i*(s*m-h*v)-l*(u*m-f*v)+p*(u*h-f*s),t[9]=-(n*(s*m-h*v)-l*(r*m-a*v)+p*(r*h-a*s)),t[10]=n*(u*m-f*v)-i*(r*m-a*v)+p*(r*f-a*u),t[11]=-(n*(u*h-f*s)-i*(r*h-a*s)+l*(r*f-a*u)),t[12]=-(i*(s*g-d*v)-l*(u*g-c*v)+p*(u*d-c*s)),t[13]=n*(s*g-d*v)-l*(r*g-o*v)+p*(r*d-o*s),t[14]=-(n*(u*g-c*v)-i*(r*g-o*v)+p*(r*c-o*u)),t[15]=n*(u*d-c*s)-i*(r*d-o*s)+l*(r*c-o*u),t},o.determinant=function(t){var e=t[0],n=t[1],r=t[2],o=t[3],a=t[4],i=t[5],u=t[6],c=t[7],f=t[8],l=t[9],s=t[10],d=t[11],h=t[12],p=t[13],v=t[14],g=t[15],m=e*i-n*a,y=e*u-r*a,_=e*c-o*a,x=n*u-r*i,M=n*c-o*i,b=r*c-o*u,w=f*p-l*h,R=f*v-s*h,A=f*g-d*h,E=l*v-s*p,C=l*g-d*p,O=s*g-d*v;return 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Math.abs(P)c?(a.cross(t,e,o),a.length(t)<1e-6&&a.cross(t,n,o),a.normalize(t,t),u.setAxisAngle(r,t,Math.PI),r):c>.999999?(r[0]=0,r[1]=0,r[2]=0,r[3]=1,r):(a.cross(t,o,i),r[0]=t[0],r[1]=t[1],r[2]=t[2],r[3]=1+c,u.normalize(r,r))}}(),u.setAxes=function(){var t=o.create();return function(e,n,r,o){return t[0]=r[0],t[3]=r[1],t[6]=r[2],t[1]=o[0],t[4]=o[1],t[7]=o[2],t[2]=-n[0],t[5]=-n[1],t[8]=-n[2],u.normalize(e,u.fromMat3(e,t))}}(),u.clone=i.clone,u.fromValues=i.fromValues,u.copy=i.copy,u.set=i.set,u.identity=function(t){return t[0]=0,t[1]=0,t[2]=0,t[3]=1,t},u.setAxisAngle=function(t,e,n){n=.5*n;var r=Math.sin(n);return t[0]=r*e[0],t[1]=r*e[1],t[2]=r*e[2],t[3]=Math.cos(n),t},u.add=i.add,u.multiply=function(t,e,n){var r=e[0],o=e[1],a=e[2],i=e[3],u=n[0],c=n[1],f=n[2],l=n[3];return t[0]=r*l+i*u+o*f-a*c,t[1]=o*l+i*c+a*u-r*f,t[2]=a*l+i*f+r*c-o*u,t[3]=i*l-r*u-o*c-a*f,t},u.mul=u.multiply,u.scale=i.scale,u.rotateX=function(t,e,n){n*=.5;var r=e[0],o=e[1],a=e[2],i=e[3],u=Math.sin(n),c=Math.cos(n);return t[0]=r*c+i*u,t[1]=o*c+a*u,t[2]=a*c-o*u,t[3]=i*c-r*u,t},u.rotateY=function(t,e,n){n*=.5;var r=e[0],o=e[1],a=e[2],i=e[3],u=Math.sin(n),c=Math.cos(n);return t[0]=r*c-a*u,t[1]=o*c+i*u,t[2]=a*c+r*u,t[3]=i*c-o*u,t},u.rotateZ=function(t,e,n){n*=.5;var r=e[0],o=e[1],a=e[2],i=e[3],u=Math.sin(n),c=Math.cos(n);return t[0]=r*c+o*u,t[1]=o*c-r*u,t[2]=a*c+i*u,t[3]=i*c-a*u,t},u.calculateW=function(t,e){var n=e[0],r=e[1],o=e[2];return t[0]=n,t[1]=r,t[2]=o,t[3]=Math.sqrt(Math.abs(1-n*n-r*r-o*o)),t},u.dot=i.dot,u.lerp=i.lerp,u.slerp=function(t,e,n,r){var o,a,i,u,c,f=e[0],l=e[1],s=e[2],d=e[3],h=n[0],p=n[1],v=n[2],g=n[3];return a=f*h+l*p+s*v+d*g,0>a&&(a=-a,h=-h,p=-p,v=-v,g=-g),1-a>1e-6?(o=Math.acos(a),i=Math.sin(o),u=Math.sin((1-r)*o)/i,c=Math.sin(r*o)/i):(u=1-r,c=r),t[0]=u*f+c*h,t[1]=u*l+c*p,t[2]=u*s+c*v,t[3]=u*d+c*g,t},u.sqlerp=function(){var t=u.create(),e=u.create();return function(n,r,o,a,i,c){return u.slerp(t,r,i,c),u.slerp(e,o,a,c),u.slerp(n,t,e,2*c*(1-c)),n}}(),u.invert=function(t,e){var n=e[0],r=e[1],o=e[2],a=e[3],i=n*n+r*r+o*o+a*a,u=i?1/i:0;return t[0]=-n*u,t[1]=-r*u,t[2]=-o*u,t[3]=a*u,t},u.conjugate=function(t,e){return t[0]=-e[0],t[1]=-e[1],t[2]=-e[2],t[3]=e[3],t},u.length=i.length,u.len=u.length,u.squaredLength=i.squaredLength,u.sqrLen=u.squaredLength,u.normalize=i.normalize,u.fromMat3=function(t,e){var n,r=e[0]+e[4]+e[8];if(r>0)n=Math.sqrt(r+1),t[3]=.5*n,n=.5/n,t[0]=(e[5]-e[7])*n,t[1]=(e[6]-e[2])*n,t[2]=(e[1]-e[3])*n;else{var o=0;e[4]>e[0]&&(o=1),e[8]>e[3*o+o]&&(o=2);var a=(o+1)%3,i=(o+2)%3;n=Math.sqrt(e[3*o+o]-e[3*a+a]-e[3*i+i]+1),t[o]=.5*n,n=.5/n,t[3]=(e[3*a+i]-e[3*i+a])*n,t[a]=(e[3*a+o]+e[3*o+a])*n,t[i]=(e[3*i+o]+e[3*o+i])*n}return t},u.str=function(t){return"quat("+t[0]+", "+t[1]+", "+t[2]+", "+t[3]+")"},t.exports=u},function(t,e,n){var r=n(10),o={};o.create=function(){var t=new r.ARRAY_TYPE(3);return t[0]=0,t[1]=0,t[2]=0,t},o.clone=function(t){var e=new r.ARRAY_TYPE(3);return e[0]=t[0],e[1]=t[1],e[2]=t[2],e},o.fromValues=function(t,e,n){var o=new 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if(h=c.contourTracing(d,s,i.DIR.INSIDE_EDGE,e,l),null!==h){for(p=i.createContour2D(),p.firstVertex=h,p.insideContours=null,0===t?p.dir=i.CONTOUR_DIR.CCW_DIR:p.dir=i.CONTOUR_DIR.CW_DIR,p.index=t,g=v;null!==g&&g.index!==l;)g=g.nextpeer;null!==g&&(p.nextpeer=g.insideContours, +null!==g.insideContours&&(g.insideContours.prevpeer=p),g.insideContours=p)}}else r[m]=l;else r[m]===i.DIR.OUTSIDE_EDGE||r[m]===i.DIR.INSIDE_EDGE?(l=0,a=r[m]===i.DIR.INSIDE_EDGE?n[m]:_[0]):(l=r[m],a=_[l]);for(g=v;null!==g;)g.index=t,g=g.nextpeer;return{cc:v,count:x}},debug:{drawContour:function(t,e){var n,r,o,a=t.getContext("2d"),u=e;for(a.strokeStyle="red",a.fillStyle="red",a.lineWidth=1,n=null!==u?u.insideContours:null;null!==u;){switch(null!==n?(r=n,n=n.nextpeer):(r=u,u=u.nextpeer,n=null!==u?u.insideContours:null),r.dir){case i.CONTOUR_DIR.CW_DIR:a.strokeStyle="red";break;case i.CONTOUR_DIR.CCW_DIR:a.strokeStyle="blue";break;case i.CONTOUR_DIR.UNKNOWN_DIR:a.strokeStyle="green"}o=r.firstVertex,a.beginPath(),a.moveTo(o.x,o.y);do o=o.next,a.lineTo(o.x,o.y);while(o!==r.firstVertex);a.stroke()}}}}}};e["default"]=i,t.exports=e["default"]},function(t,e){"use strict";Object.defineProperty(e,"__esModule",{value:!0});var n={searchDirections:[[0,1],[1,1],[1,0],[1,-1],[0,-1],[-1,-1],[-1,0],[-1,1]],create:function(t,e){function n(t,e,n,r){var o,l,s;for(o=0;7>o;o++){if(l=t.cy+c[t.dir][0],s=t.cx+c[t.dir][1],a=l*f+s,i[a]===e&&(0===u[a]||u[a]===n))return u[a]=n,t.cy=l,t.cx=s,!0;0===u[a]&&(u[a]=r),t.dir=(t.dir+1)%8}return!1}function r(t,e,n){return{dir:n,x:t,y:e,next:null,prev:null}}function o(t,e,o,a,i){var u,c,f,l=null,s={cx:e,cy:t,dir:0};if(n(s,a,o,i)){l=r(e,t,s.dir),u=l,f=s.dir,c=r(s.cx,s.cy,0),c.prev=u,u.next=c,c.next=null,u=c;do s.dir=(s.dir+6)%8,n(s,a,o,i),f!==s.dir?(u.dir=s.dir,c=r(s.cx,s.cy,0),c.prev=u,u.next=c,c.next=null,u=c):(u.dir=f,u.x=s.cx,u.y=s.cy),f=s.dir;while(s.cx!==e||s.cy!==t);l.prev=u.prev,u.prev.next=l}return l}var a,i=t.data,u=e.data,c=this.searchDirections,f=t.size.x;return{trace:function(t,e,r,o){return n(t,e,r,o)},contourTracing:function(t,e,n,r,a){return o(t,e,n,r,a)}}}};e["default"]=n,t.exports=e["default"]},function(module, exports) {"use strict";Object.defineProperty(exports, "__esModule", {value: true});function Skeletonizer(stdlib, foreign, buffer) {"use asm";var images=new stdlib.Uint8Array(buffer),size=foreign.size|0,imul=stdlib.Math.imul;function erode(inImagePtr, outImagePtr) {inImagePtr=inImagePtr|0;outImagePtr=outImagePtr|0;var v=0,u=0,sum=0,yStart1=0,yStart2=0,xStart1=0,xStart2=0,offset=0;for (v=1; (v|0)<(size - 1|0); v=v+1|0) {offset=offset+size|0;for (u=1; (u|0)<(size - 1|0); u=u+1|0) {yStart1=offset - size|0;yStart2=offset+size|0;xStart1=u - 1|0;xStart2=u+1|0;sum=(images[inImagePtr+yStart1+xStart1|0]|0)+(images[inImagePtr+yStart1+xStart2|0]|0)+(images[inImagePtr+offset+u|0]|0)+(images[inImagePtr+yStart2+xStart1|0]|0)+(images[inImagePtr+yStart2+xStart2|0]|0)|0;if ((sum|0) == (5|0)) {images[outImagePtr+offset+u|0]=1;} else {images[outImagePtr+offset+u|0]=0;}}}return;}function subtract(aImagePtr, bImagePtr, outImagePtr) {aImagePtr=aImagePtr|0;bImagePtr=bImagePtr|0;outImagePtr=outImagePtr|0;var length=0;length=imul(size, size)|0;while ((length|0)>0) {length=length - 1|0;images[outImagePtr+length|0]=(images[aImagePtr+length|0]|0) - (images[bImagePtr+length|0]|0)|0;}}function bitwiseOr(aImagePtr, bImagePtr, outImagePtr) {aImagePtr=aImagePtr|0;bImagePtr=bImagePtr|0;outImagePtr=outImagePtr|0;var length=0;length=imul(size, size)|0;while ((length|0)>0) {length=length - 1|0;images[outImagePtr+length|0]=images[aImagePtr+length|0]|0|(images[bImagePtr+length|0]|0)|0;}}function countNonZero(imagePtr) {imagePtr=imagePtr|0;var sum=0,length=0;length=imul(size, size)|0;while ((length|0)>0) {length=length - 1|0;sum=(sum|0)+(images[imagePtr+length|0]|0)|0;}return sum|0;}function init(imagePtr, value) {imagePtr=imagePtr|0;value=value|0;var length=0;length=imul(size, size)|0;while ((length|0)>0) {length=length - 1|0;images[imagePtr+length|0]=value;}}function dilate(inImagePtr, outImagePtr) {inImagePtr=inImagePtr|0;outImagePtr=outImagePtr|0;var v=0,u=0,sum=0,yStart1=0,yStart2=0,xStart1=0,xStart2=0,offset=0;for (v=1; (v|0)<(size - 1|0); v=v+1|0) {offset=offset+size|0;for (u=1; (u|0)<(size - 1|0); u=u+1|0) {yStart1=offset - size|0;yStart2=offset+size|0;xStart1=u - 1|0;xStart2=u+1|0;sum=(images[inImagePtr+yStart1+xStart1|0]|0)+(images[inImagePtr+yStart1+xStart2|0]|0)+(images[inImagePtr+offset+u|0]|0)+(images[inImagePtr+yStart2+xStart1|0]|0)+(images[inImagePtr+yStart2+xStart2|0]|0)|0;if ((sum|0)>(0|0)) {images[outImagePtr+offset+u|0]=1;} else {images[outImagePtr+offset+u|0]=0;}}}return;}function memcpy(srcImagePtr, dstImagePtr) {srcImagePtr=srcImagePtr|0;dstImagePtr=dstImagePtr|0;var length=0;length=imul(size, size)|0;while ((length|0)>0) {length=length - 1|0;images[dstImagePtr+length|0]=images[srcImagePtr+length|0]|0;}}function zeroBorder(imagePtr) {imagePtr=imagePtr|0;var x=0,y=0;for (x=0; (x|0)<(size - 1|0); x=x+1|0) {images[imagePtr+x|0]=0;images[imagePtr+y|0]=0;y=y+size - 1|0;images[imagePtr+y|0]=0;y=y+1|0;}for (x=0; (x|0)<(size|0); x=x+1|0) {images[imagePtr+y|0]=0;y=y+1|0;}}function skeletonize() {var subImagePtr=0,erodedImagePtr=0,tempImagePtr=0,skelImagePtr=0,sum=0,done=0;erodedImagePtr=imul(size, size)|0;tempImagePtr=erodedImagePtr+erodedImagePtr|0;skelImagePtr=tempImagePtr+erodedImagePtr|0;init(skelImagePtr, 0);zeroBorder(subImagePtr);do {erode(subImagePtr, erodedImagePtr);dilate(erodedImagePtr, tempImagePtr);subtract(subImagePtr, tempImagePtr, tempImagePtr);bitwiseOr(skelImagePtr, tempImagePtr, skelImagePtr);memcpy(erodedImagePtr, subImagePtr);sum=countNonZero(subImagePtr)|0;done=(sum|0) == 0|0;} while (!done);}return {skeletonize: skeletonize};}exports["default"]=Skeletonizer;module.exports=exports["default"]; },function(t,e){"use strict";Object.defineProperty(e,"__esModule",{value:!0}),e["default"]={drawRect:function(t,e,n,r){n.strokeStyle=r.color,n.fillStyle=r.color,n.lineWidth=1,n.beginPath(),n.strokeRect(t.x,t.y,e.x,e.y)},drawPath:function(t,e,n,r){n.strokeStyle=r.color,n.fillStyle=r.color,n.lineWidth=r.lineWidth,n.beginPath(),n.moveTo(t[0][e.x],t[0][e.y]);for(var o=1;o1&&(!e.inImageWithBorder(t[0],0)||!e.inImageWithBorder(t[1],0));)r-=Math.ceil(r/2),o(-r);return t}function c(t){return[{x:(t[1][0]-t[0][0])/2+t[0][0],y:(t[1][1]-t[0][1])/2+t[0][1]},{x:(t[3][0]-t[2][0])/2+t[2][0],y:(t[3][1]-t[2][1])/2+t[2][1]}]}function f(n){var r,o=null,i=a["default"].getBarcodeLine(e,n[0],n[1]);for(t.showFrequency&&(u["default"].drawPath(n,{x:"x",y:"y"},h.ctx.overlay,{color:"red",lineWidth:3}),a["default"].debug.printFrequency(i.line,h.dom.frequency)),a["default"].toBinaryLine(i),t.showPattern&&a["default"].debug.printPattern(i.line,h.dom.pattern),r=0;rr&&null===c;r++)o=i/u*r*(r%2===0?-1:1),a={y:o*l,x:o*s},e[0].y+=a.x,e[0].x-=a.y,e[1].y+=a.x,e[1].x-=a.y,c=f(e);return c}function s(t){return Math.sqrt(Math.pow(Math.abs(t[1].y-t[0].y),2)+Math.pow(Math.abs(t[1].x-t[0].x),2))}function d(e){var n,r,o,a,d=h.ctx.overlay;return t.drawBoundingBox&&d&&u["default"].drawPath(e,{x:0,y:1},d,{color:"blue",lineWidth:2}),n=c(e),a=s(n),r=Math.atan2(n[1].y-n[0].y,n[1].x-n[0].x),n=i(n,r,Math.floor(.1*a)),null===n?null:(o=f(n),null===o&&(o=l(e,n,r)),null===o?null:(o&&t.drawScanline&&d&&u["default"].drawPath(n,{x:"x",y:"y"},d,{color:"red",lineWidth:3}),{codeResult:o.codeResult,line:n,angle:r,pattern:o.barcodeLine.line,threshold:o.barcodeLine.threshold}))}var h={ctx:{frequency:null,pattern:null,overlay:null},dom:{frequency:null,pattern:null,overlay:null}},p=[];return n(),r(),o(),{decodeFromBoundingBox:function(t){return d(t)},decodeFromBoundingBoxes:function(t){var e,n;for(e=0;es?s:M,b=s>b?s:b,m.push(s)}var o,a,i,u,c,f,l,s,d=0|e.x,h=0|e.y,p=0|n.x,v=0|n.y,g=Math.abs(v-h)>Math.abs(p-d),m=[],y=t.data,_=t.size.x,x=0,M=255,b=0;for(g&&(f=d,d=h,h=f,f=p,p=v,v=f),d>p&&(f=d,d=p,p=f,f=h,h=v,v=f),o=p-d,a=Math.abs(v-h),i=o/2|0,c=h,u=v>h?1:-1,l=d;p>l;l++)g?r(c,l):r(l,c),i-=a,0>i&&(c+=u,i+=o);return{line:m,min:M,max:b}},c.toOtsuBinaryLine=function(t){var e=t.line,n=new u["default"]({x:e.length-1,y:1},e),r=a["default"].determineOtsuThreshold(n,5);return e=a["default"].sharpenLine(e),a["default"].thresholdImage(n,r),{line:e,threshold:r}},c.toBinaryLine=function(t){var e,n,r,o,a,i,u=t.min,c=t.max,l=t.line,s=u+(c-u)/2,d=[],h=(c-u)/12,p=-h;for(r=l[0]>s?f.DIR.UP:f.DIR.DOWN,d.push({pos:0,val:l[0]}),a=0;ae+n&&l[a+1]<1.5*s?f.DIR.DOWN:e+n>h&&l[a+1]>.5*s?f.DIR.UP:r,r!==o&&(d.push({pos:a,val:l[a]}),r=o);for(d.push({pos:l.length,val:l[l.length-1]}),i=d[0].pos;is?0:1;for(a=1;ad[a].val?d[a].val+(d[a+1].val-d[a].val)/3*2|0:d[a+1].val+(d[a].val-d[a+1].val)/3|0,i=d[a].pos;ih?0:1;return{line:l,threshold:h}},c.debug={printFrequency:function(t,e){var n,r=e.getContext("2d");for(e.width=t.length,e.height=256,r.beginPath(),r.strokeStyle="blue",n=0;nr;r++)i[r]=i[r+2];i[4]=0,i[5]=0,l--}else l++;i[l]=1,f=!f}return null},o.prototype._decode=function(){var t,e,n=this,r=n._findStart(),o=null,a=!1,i=[],u=0,c=0,f=[],l=[],s=!1;if(null===r)return null;switch(o={code:r.code,start:r.start,end:r.end},l.push(o),c=o.code,o.code){case n.START_CODE_A:t=n.CODE_A;break;case n.START_CODE_B:t=n.CODE_B;break;case n.START_CODE_C:t=n.CODE_C;break;default:return null}for(;!a;){if(e=s,s=!1,o=n._decodeCode(o.end),null!==o)switch(o.code!==n.STOP_CODE&&(f.push(o.code),u++,c+=u*o.code),l.push(o),t){case n.CODE_A:if(o.code<64)i.push(String.fromCharCode(32+o.code));else if(o.code<96)i.push(String.fromCharCode(o.code-64));else switch(o.code){case n.CODE_SHIFT:s=!0,t=n.CODE_B;break;case n.CODE_B:t=n.CODE_B;break;case n.CODE_C:t=n.CODE_C;break;case n.STOP_CODE:a=!0}break;case n.CODE_B:if(o.code<96)i.push(String.fromCharCode(32+o.code));else switch(o.code){case n.CODE_SHIFT:s=!0,t=n.CODE_A;break;case n.CODE_A:t=n.CODE_A;break;case n.CODE_C:t=n.CODE_C;break;case n.STOP_CODE:a=!0}break;case n.CODE_C:switch(o.code<100&&i.push(o.code<10?"0"+o.code:o.code),o.code){case n.CODE_A:t=n.CODE_A;break;case n.CODE_B:t=n.CODE_B;break;case n.STOP_CODE:a=!0}}else a=!0;e&&(t=t===n.CODE_A?n.CODE_B:n.CODE_A)}return null===o?null:(o.end=n._nextUnset(n._row,o.end),n._verifyTrailingWhitespace(o)?(c-=u*f[f.length-1],c%103!==f[f.length-1]?null:i.length?(i.splice(i.length-1,1),{code:i.join(""),start:r.start,end:o.end,codeset:t,startInfo:r,decodedCodes:l,endInfo:o}):null):null)},i["default"].prototype._verifyTrailingWhitespace=function(t){var e,n=this;return e=t.end+(t.end-t.start)/2,ei)return Number.MAX_VALUE;r+=o}return r/a},n.prototype._nextSet=function(t,e){var n;for(e=e||0,n=e;n1)for(n=0;nr?(f.start=n-i,f.end=n,f.counter=o,f):null;c++,o[c]=1,u=!u}}else for(o.push(0),n=i;nt?0:t,r=t;e>r;r++)if(this._row[r]!==n)return!1;return!0},n.prototype._fillCounters=function(t,e,n){var r,o=this,a=0,i=[];for(n="undefined"!=typeof n?n:!0,t="undefined"!=typeof t?t:o._nextUnset(o._row),e=e||o._row.length,i[a]=0,r=t;e>r;r++)o._row[r]^n?i[a]++:(a++,i[a]=1,n=!n);return i},Object.defineProperty(n.prototype,"FORMAT",{value:"unknown",writeable:!1}),n.DIRECTION={FORWARD:1,REVERSE:-1},n.Exception={StartNotFoundException:"Start-Info was not found!",CodeNotFoundException:"Code could not be found!",PatternNotFoundException:"Pattern could not be found!"},n.CONFIG_KEYS={},e["default"]=n,t.exports=e["default"]},function(t,e,n){"use strict";function r(t){return t&&t.__esModule?t:{"default":t}}function o(t){i["default"].call(this,t)}Object.defineProperty(e,"__esModule",{value:!0});var a=n(28),i=r(a),u={CODE_L_START:{value:0},MODULO:{value:7},CODE_G_START:{value:10},START_PATTERN:{value:[1/3*7,1/3*7,1/3*7]},STOP_PATTERN:{value:[1/3*7,1/3*7,1/3*7]},MIDDLE_PATTERN:{value:[.2*7,.2*7,.2*7,.2*7,.2*7]},CODE_PATTERN:{value:[[3,2,1,1],[2,2,2,1],[2,1,2,2],[1,4,1,1],[1,1,3,2],[1,2,3,1],[1,1,1,4],[1,3,1,2],[1,2,1,3],[3,1,1,2],[1,1,2,3],[1,2,2,2],[2,2,1,2],[1,1,4,1],[2,3,1,1],[1,3,2,1],[4,1,1,1],[2,1,3,1],[3,1,2,1],[2,1,1,3]]},CODE_FREQUENCY:{value:[0,11,13,14,19,25,28,21,22,26]},SINGLE_CODE_ERROR:{value:.67},AVG_CODE_ERROR:{value:.27},FORMAT:{value:"ean_13",writeable:!1}};o.prototype=Object.create(i["default"].prototype,u),o.prototype.constructor=o,o.prototype._decodeCode=function(t,e){var n,r,o,a,i=[0,0,0,0],u=this,c=t,f=!u._row[c],l=0,s={error:Number.MAX_VALUE,code:-1,start:t,end:t};for(e||(e=u.CODE_PATTERN.length),n=c;nr;r++)o=u._matchPattern(a,u.CODE_PATTERN[r]),ou.AVG_CODE_ERROR?null:s}}else l++;i[l]=1,f=!f}return null},o.prototype._findPattern=function(t,e,n,r,o){var a,i,u,c,f,l=[],s=this,d=0,h={error:Number.MAX_VALUE,code:-1,start:0,end:0};for(e||(e=s._nextSet(s._row)),void 0===n&&(n=!1),void 0===r&&(r=!0),void 0===o&&(o=s.AVG_CODE_ERROR),a=0;ai))return h.error=i,h.start=a-c,h.end=a,h;if(!r)return null;for(u=0;u=0&&n._matchRange(t,e.start,0))return e;r=e.end,e=null}},o.prototype._verifyTrailingWhitespace=function(t){var e,n=this;return e=t.end+(t.end-t.start),er;r++){if(t=a._decodeCode(t.end),!t)return null;t.code>=a.CODE_G_START?(t.code=t.code-a.CODE_G_START,i|=1<<5-r):i|=0<<5-r,e.push(t.code),n.push(t)}if(o=a._calculateFirstDigit(i),null===o)return null;if(e.unshift(o),t=a._findPattern(a.MIDDLE_PATTERN,t.end,!0,!1),null===t)return null;for(n.push(t),r=0;6>r;r++){if(t=a._decodeCode(t.end,a.CODE_G_START),!t)return null;n.push(t),e.push(t.code)}return t},o.prototype._decode=function(){var t,e,n=this,r=[],o=[];return(t=n._findStart())?(e={code:t.code,start:t.start,end:t.end},o.push(e),(e=n._decodePayload(e,r,o))&&(e=n._findEnd(e.end,!1))?(o.push(e),n._checksum(r)?{code:r.join(""),start:t.start,end:e.end,codeset:"",startInfo:t,decodedCodes:o}:null):null):null},o.prototype._checksum=function(t){var e,n=0;for(e=t.length-2;e>=0;e-=2)n+=t[e];for(n*=3,e=t.length-1;e>=0;e-=2)n+=t[e];return n%10===0},e["default"]=o,t.exports=e["default"]},function(t,e,n){"use strict";function r(t){return t&&t.__esModule?t:{"default":t}}function o(){i["default"].call(this)}Object.defineProperty(e,"__esModule",{value:!0});var a=n(28),i=r(a),u=n(19),c=r(u),f={ALPHABETH_STRING:{value:"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ-. 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o(){i["default"].call(this)}Object.defineProperty(e,"__esModule",{value:!0});var a=n(30),i=r(a),u={IOQ:/[IOQ]/g,AZ09:/[A-Z0-9]{17}/};o.prototype=Object.create(i["default"].prototype),o.prototype.constructor=o,o.prototype._decode=function(){var t=i["default"].prototype._decode.apply(this);if(!t)return null;var e=t.code;return e?(e=e.replace(u.IOQ,""),e.match(u.AZ09)?this._checkChecksum(e)?(t.code=e,t):null:(console.log("Failed AZ09 pattern code:",e),null)):null},o.prototype._checkChecksum=function(t){return!!t},e["default"]=o,t.exports=e["default"]},function(t,e,n){"use strict";function r(t){return t&&t.__esModule?t:{"default":t}}function o(){i["default"].call(this),this._counters=[]}Object.defineProperty(e,"__esModule",{value:!0});var a=n(28),i=r(a),u={ALPHABETH_STRING:{value:"0123456789-$:/.+ABCD"},ALPHABET:{value:[48,49,50,51,52,53,54,55,56,57,45,36,58,47,46,43,65,66,67,68]},CHARACTER_ENCODINGS:{value:[3,6,9,96,18,66,33,36,48,72,12,24,69,81,84,21,26,41,11,14]},START_END:{value:[26,41,11,14]},MIN_ENCODED_CHARS:{value:4},MAX_ACCEPTABLE:{value:2},PADDING:{value:1.5},FORMAT:{value:"codabar",writeable:!1}};o.prototype=Object.create(i["default"].prototype,u),o.prototype.constructor=o,o.prototype._decode=function(){var t,e,n,r,o,a=this,i=[];if(this._counters=a._fillCounters(),t=a._findStart(),!t)return null;r=t.startCounter;do{if(n=a._toPattern(r),0>n)return null;if(e=a._patternToChar(n),0>e)return 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e=c[t];e.wide.min=Math.floor((e.narrow.size/e.narrow.counts+e.wide.size/e.wide.counts)/2),e.narrow.max=Math.ceil(e.wide.min),e.wide.max=Math.ceil((e.wide.size*u.MAX_ACCEPTABLE+u.PADDING)/e.wide.counts)}),c},o.prototype._charToPattern=function(t){var e,n=this,r=t.charCodeAt(0);for(e=0;e=0;r--){if(o=0===(1&r)?f.bar:f.space,a=1===(1&u)?o.wide:o.narrow,i=c._counters[l+r],ia.max)return!1;u>>=1}l+=8}return!0},o.prototype._patternToChar=function(t){var e,n=this;for(e=0;en;n+=2)r=this._counters[n],r>a&&(a=r),o>r&&(o=r);return(o+a)/2|0},o.prototype._toPattern=function(t){var e,n,r,o,a=7,i=t+a,u=1<this._counters.length)return-1;for(e=this._computeAlternatingThreshold(t,i),n=this._computeAlternatingThreshold(t+1,i),r=0;a>r;r++)o=0===(1&r)?e:n,this._counters[t+r]>o&&(c|=u),u>>=1;return c},o.prototype._isStartEnd=function(t){var e;for(e=0;en;n++)r+=this._counters[n];return r},o.prototype._findStart=function(){var t,e,n,r=this,o=r._nextUnset(r._row);for(t=1;tr;r++){if(t=o._decodeCode(t.end,o.CODE_G_START),!t)return null;e.push(t.code),n.push(t)}if(t=o._findPattern(o.MIDDLE_PATTERN,t.end,!0,!1),null===t)return null;for(n.push(t),r=0;4>r;r++){if(t=o._decodeCode(t.end,o.CODE_G_START),!t)return null;n.push(t),e.push(t.code)}return t},e["default"]=o,t.exports=e["default"]},function(t,e,n){"use strict";function r(t){return t&&t.__esModule?t:{"default":t}}function o(){i["default"].call(this)}Object.defineProperty(e,"__esModule",{value:!0});var a=n(29),i=r(a),u={CODE_FREQUENCY:{value:[[56,52,50,49,44,38,35,42,41,37],[7,11,13,14,19,25,28,21,22,26]]},STOP_PATTERN:{value:[1/6*7,1/6*7,1/6*7,1/6*7,1/6*7,1/6*7]},FORMAT:{value:"upc_e",writeable:!1}};o.prototype=Object.create(i["default"].prototype,u),o.prototype.constructor=o,o.prototype._decodePayload=function(t,e,n){var r,o=this,a=0;for(r=0;6>r;r++){if(t=o._decodeCode(t.end),!t)return null;t.code>=o.CODE_G_START&&(t.code=t.code-o.CODE_G_START,a|=1<<5-r),e.push(t.code),n.push(t)}return o._determineParity(a,e)?t:null},o.prototype._determineParity=function(t,e){var n,r;for(r=0;r=n?e.concat(t.slice(1,3)).concat([n,0,0,0,0]).concat(t.slice(3,6)):3===n?e.concat(t.slice(1,4)).concat([0,0,0,0,0]).concat(t.slice(4,6)):4===n?e.concat(t.slice(1,5)).concat([0,0,0,0,0,t[5]]):e.concat(t.slice(1,6)).concat([0,0,0,0,n]),e.push(t[t.length-1]),e},o.prototype._checksum=function(t){return i["default"].prototype._checksum.call(this,this._convertToUPCA(t))},o.prototype._findEnd=function(t,e){return e=!0,i["default"].prototype._findEnd.call(this,t,e)},o.prototype._verifyTrailingWhitespace=function(t){var e,n=this;return e=t.end+(t.end-t.start)/2,ea))return d.error=a,d.start=o-u,d.end=o,d;if(!r)return null;for(i=0;i=0&&n._matchRange(t,e.start,0))return e;r=e.end,e=null}},o.prototype._verifyTrailingWhitespace=function(t){var e,n=this;return 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0:u,i=1);++r0?t.videoWidth>0&&t.videoHeight>0?(console.log(t.videoWidth+"px x "+t.videoHeight+"px"),e()):window.setTimeout(n,500):e("Unable to play video stream. Is webcam working?"),r--}var r=10;n()}function a(t,e,n){r(t,function(t){e.src=t,f&&e.removeEventListener("loadeddata",f,!1),f=o.bind(null,e,n),e.addEventListener("loadeddata",f,!1),e.play()},function(t){n(t)})}function i(t,e){var n={audio:!1,video:!0},r=l({width:640,height:480,minAspectRatio:0,maxAspectRatio:100,facing:"environment"},t);return"undefined"==typeof MediaStreamTrack||"undefined"==typeof MediaStreamTrack.getSources?(n.video={mediaSource:"camera",width:{min:r.width,max:r.width},height:{min:r.height,max:r.height},require:["width","height"]},e(n)):void MediaStreamTrack.getSources(function(t){for(var o,a=0;a Date: Thu, 8 Oct 2015 01:41:20 +0200 Subject: [PATCH 5/7] version for node working --- dist/quagga.js | 2813 ++++++++------- dist/quagga.min.js | 7 +- lib/frame_grabber.js | 176 +- lib/input_stream.js | 261 +- lib/quagga.js | 7813 +++++++++++++++++++++++++++++++++++++++- package.json | 2 +- src/barcode_locator.js | 2 +- src/quagga.js | 4 +- webpack.config.js | 9 +- webpack.node.config.js | 26 + 10 files changed, 9456 insertions(+), 1657 deletions(-) create mode 100644 webpack.node.config.js diff --git a/dist/quagga.js b/dist/quagga.js index 253ead90..09d702ff 100644 --- a/dist/quagga.js +++ b/dist/quagga.js @@ -73,49 +73,43 @@ return /******/ (function(modules) { // webpackBootstrap // eslint-disable-line no-unused-vars - var _input_stream = __webpack_require__(3); - - var _input_stream2 = _interopRequireDefault(_input_stream); - - var _image_wrapper = __webpack_require__(5); + var _image_wrapper = __webpack_require__(3); var _image_wrapper2 = _interopRequireDefault(_image_wrapper); - var _barcode_locator = __webpack_require__(20); + var _barcode_locator = __webpack_require__(18); var _barcode_locator2 = _interopRequireDefault(_barcode_locator); - var _barcode_decoder = __webpack_require__(25); + var _barcode_decoder = __webpack_require__(23); var _barcode_decoder2 = _interopRequireDefault(_barcode_decoder); - var _frame_grabber = __webpack_require__(70); - - var _frame_grabber2 = _interopRequireDefault(_frame_grabber); - - var _config2 = __webpack_require__(71); + var _config2 = __webpack_require__(68); var _config3 = _interopRequireDefault(_config2); - var _events = __webpack_require__(72); + var _events = __webpack_require__(69); var _events2 = _interopRequireDefault(_events); - var _camera_access = __webpack_require__(73); + var _camera_access = __webpack_require__(70); var _camera_access2 = _interopRequireDefault(_camera_access); - var _image_debug = __webpack_require__(24); + var _image_debug = __webpack_require__(22); var _image_debug2 = _interopRequireDefault(_image_debug); - var _glMatrix = __webpack_require__(9); + var _glMatrix = __webpack_require__(7); - var _result_collector = __webpack_require__(74); + var _result_collector = __webpack_require__(71); var _result_collector2 = _interopRequireDefault(_result_collector); - var merge = __webpack_require__(37); + var merge = __webpack_require__(35); + var InputStream = __webpack_require__(72); + var FrameGrabber = __webpack_require__(74); var _inputStream, _framegrabber, @@ -169,9 +163,9 @@ return /******/ (function(modules) { // webpackBootstrap var video; if (_config.inputStream.type === "VideoStream") { video = document.createElement("video"); - _inputStream = _input_stream2['default'].createVideoStream(video); + _inputStream = InputStream.createVideoStream(video); } else if (_config.inputStream.type === "ImageStream") { - _inputStream = _input_stream2['default'].createImageStream(); + _inputStream = InputStream.createImageStream(); } else if (_config.inputStream.type === "LiveStream") { var $viewport = document.querySelector("#interactive.viewport"); if ($viewport) { @@ -181,7 +175,7 @@ return /******/ (function(modules) { // webpackBootstrap $viewport.appendChild(video); } } - _inputStream = _input_stream2['default'].createLiveStream(video); + _inputStream = InputStream.createLiveStream(video); _camera_access2['default'].request(video, _config.inputStream.constraints, function (err) { if (!err) { _inputStream.trigger("canrecord"); @@ -200,7 +194,7 @@ return /******/ (function(modules) { // webpackBootstrap function canRecord(cb) { _barcode_locator2['default'].checkImageConstraints(_inputStream, _config.locator); initCanvas(); - _framegrabber = _frame_grabber2['default'].create(_inputStream, _canvasContainer.dom.image); + _framegrabber = FrameGrabber.create(_inputStream, _canvasContainer.dom.image); initConfig(); if (_config.numOfWorkers > 0) { @@ -626,544 +620,149 @@ return /******/ (function(modules) { // webpackBootstrap function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; } - var _image_loader = __webpack_require__(4); - - var _image_loader2 = _interopRequireDefault(_image_loader); - - var InputStream = {}; - InputStream.createVideoStream = function (video) { - var that = {}, - _config = null, - _eventNames = ['canrecord', 'ended'], - _eventHandlers = {}, - _calculatedWidth, - _calculatedHeight, - _topRight = { x: 0, y: 0 }, - _canvasSize = { x: 0, y: 0 }; - - function initSize() { - var width = video.videoWidth, - height = video.videoHeight; - - _calculatedWidth = _config.size ? width / height > 1 ? _config.size : Math.floor(width / height * _config.size) : width; - _calculatedHeight = _config.size ? width / height > 1 ? Math.floor(height / width * _config.size) : _config.size : height; - - _canvasSize.x = _calculatedWidth; - _canvasSize.y = _calculatedHeight; - } - - that.getRealWidth = function () { - return video.videoWidth; - }; - - that.getRealHeight = function () { - return video.videoHeight; - }; - - that.getWidth = function () { - return _calculatedWidth; - }; - - that.getHeight = function () { - return _calculatedHeight; - }; - - that.setWidth = function (width) { - _calculatedWidth = width; - }; - - that.setHeight = function (height) { - _calculatedHeight = height; - }; - - that.setInputStream = function (config) { - _config = config; - video.src = typeof config.src !== 'undefined' ? config.src : ''; - }; + var _subImage = __webpack_require__(4); - that.ended = function () { - return video.ended; - }; + var _subImage2 = _interopRequireDefault(_subImage); - that.getConfig = function () { - return _config; - }; + var _cv_utils = __webpack_require__(5); - that.setAttribute = function (name, value) { - video.setAttribute(name, value); - }; + var _cv_utils2 = _interopRequireDefault(_cv_utils); - that.pause = function () { - video.pause(); - }; + var _array_helper = __webpack_require__(17); - that.play = function () { - video.play(); - }; + var _array_helper2 = _interopRequireDefault(_array_helper); - that.setCurrentTime = function (time) { - if (_config.type !== "LiveStream") { - video.currentTime = time; - } - }; + var _glMatrix = __webpack_require__(7); - that.addEventListener = function (event, f, bool) { - if (_eventNames.indexOf(event) !== -1) { - if (!_eventHandlers[event]) { - _eventHandlers[event] = []; + /** + * Represents a basic image combining the data and size. + * In addition, some methods for manipulation are contained. + * @param size {x,y} The size of the image in pixel + * @param data {Array} If given, a flat array containing the pixel data + * @param ArrayType {Type} If given, the desired DataType of the Array (may be typed/non-typed) + * @param initialize {Boolean} Indicating if the array should be initialized on creation. + * @returns {ImageWrapper} + */ + function ImageWrapper(size, data, ArrayType, initialize) { + if (!data) { + if (ArrayType) { + this.data = new ArrayType(size.x * size.y); + if (ArrayType === Array && initialize) { + _array_helper2['default'].init(this.data, 0); } - _eventHandlers[event].push(f); } else { - video.addEventListener(event, f, bool); - } - }; - - that.clearEventHandlers = function () { - _eventNames.forEach(function (eventName) { - var handlers = _eventHandlers[eventName]; - if (handlers && handlers.length > 0) { - handlers.forEach(function (handler) { - video.removeEventListener(eventName, handler); - }); - } - }); - }; - - that.trigger = function (eventName, args) { - var j, - handlers = _eventHandlers[eventName]; - - if (eventName === 'canrecord') { - initSize(); - } - if (handlers && handlers.length > 0) { - for (j = 0; j < handlers.length; j++) { - handlers[j].apply(that, args); + this.data = new Uint8Array(size.x * size.y); + if (Uint8Array === Array && initialize) { + _array_helper2['default'].init(this.data, 0); } } - }; + } else { + this.data = data; + } + this.size = size; + } - that.setTopRight = function (topRight) { - _topRight.x = topRight.x; - _topRight.y = topRight.y; - }; + /** + * tests if a position is within the image with a given offset + * @param imgRef {x, y} The location to test + * @param border Number the padding value in pixel + * @returns {Boolean} true if location inside the image's border, false otherwise + * @see cvd/image.h + */ + ImageWrapper.prototype.inImageWithBorder = function (imgRef, border) { + return imgRef.x >= border && imgRef.y >= border && imgRef.x < this.size.x - border && imgRef.y < this.size.y - border; + }; - that.getTopRight = function () { - return _topRight; - }; + /** + * Performs bilinear sampling + * @param inImg Image to extract sample from + * @param x the x-coordinate + * @param y the y-coordinate + * @returns the sampled value + * @see cvd/vision.h + */ + ImageWrapper.sample = function (inImg, x, y) { + var lx = Math.floor(x); + var ly = Math.floor(y); + var w = inImg.size.x; + var base = ly * inImg.size.x + lx; + var a = inImg.data[base + 0]; + var b = inImg.data[base + 1]; + var c = inImg.data[base + w]; + var d = inImg.data[base + w + 1]; + var e = a - b; + x -= lx; + y -= ly; - that.setCanvasSize = function (size) { - _canvasSize.x = size.x; - _canvasSize.y = size.y; - }; + var result = Math.floor(x * (y * (e - c + d) - e) + y * (c - a) + a); + return result; + }; - that.getCanvasSize = function () { - return _canvasSize; - }; + /** + * Initializes a given array. Sets each element to zero. + * @param array {Array} The array to initialize + */ + ImageWrapper.clearArray = function (array) { + var l = array.length; + while (l--) { + array[l] = 0; + } + }; - that.getFrame = function () { - return video; - }; + /** + * Creates a {SubImage} from the current image ({this}). + * @param from {ImageRef} The position where to start the {SubImage} from. (top-left corner) + * @param size {ImageRef} The size of the resulting image + * @returns {SubImage} A shared part of the original image + */ + ImageWrapper.prototype.subImage = function (from, size) { + return new _subImage2['default'](from, size, this); + }; - return that; + /** + * Creates an {ImageWrapper) and copies the needed underlying image-data area + * @param imageWrapper {ImageWrapper} The target {ImageWrapper} where the data should be copied + * @param from {ImageRef} The location where to copy from (top-left location) + */ + ImageWrapper.prototype.subImageAsCopy = function (imageWrapper, from) { + var sizeY = imageWrapper.size.y, + sizeX = imageWrapper.size.x; + var x, y; + for (x = 0; x < sizeX; x++) { + for (y = 0; y < sizeY; y++) { + imageWrapper.data[y * sizeX + x] = this.data[(from.y + y) * this.size.x + from.x + x]; + } + } }; - InputStream.createLiveStream = function (video) { - video.setAttribute("autoplay", true); - var that = InputStream.createVideoStream(video); + ImageWrapper.prototype.copyTo = function (imageWrapper) { + var length = this.data.length, + srcData = this.data, + dstData = imageWrapper.data; - that.ended = function () { - return false; - }; + while (length--) { + dstData[length] = srcData[length]; + } + }; - return that; + /** + * Retrieves a given pixel position from the image + * @param x {Number} The x-position + * @param y {Number} The y-position + * @returns {Number} The grayscale value at the pixel-position + */ + ImageWrapper.prototype.get = function (x, y) { + return this.data[y * this.size.x + x]; }; - InputStream.createImageStream = function () { - var that = {}; - var _config = null; - - var width = 0, - height = 0, - frameIdx = 0, - paused = true, - loaded = false, - imgArray = null, - size = 0, - offset = 1, - baseUrl = null, - ended = false, - calculatedWidth, - calculatedHeight, - _eventNames = ['canrecord', 'ended'], - _eventHandlers = {}, - _topRight = { x: 0, y: 0 }, - _canvasSize = { x: 0, y: 0 }; - - function loadImages() { - loaded = false; - _image_loader2['default'].load(baseUrl, function (imgs) { - imgArray = imgs; - width = imgs[0].width; - height = imgs[0].height; - calculatedWidth = _config.size ? width / height > 1 ? _config.size : Math.floor(width / height * _config.size) : width; - calculatedHeight = _config.size ? width / height > 1 ? Math.floor(height / width * _config.size) : _config.size : height; - _canvasSize.x = calculatedWidth; - _canvasSize.y = calculatedHeight; - loaded = true; - frameIdx = 0; - setTimeout(function () { - publishEvent("canrecord", []); - }, 0); - }, offset, size, _config.sequence); - } - - function publishEvent(eventName, args) { - var j, - handlers = _eventHandlers[eventName]; - - if (handlers && handlers.length > 0) { - for (j = 0; j < handlers.length; j++) { - handlers[j].apply(that, args); - } - } - } - - that.trigger = publishEvent; - - that.getWidth = function () { - return calculatedWidth; - }; - - that.getHeight = function () { - return calculatedHeight; - }; - - that.setWidth = function (newWidth) { - calculatedWidth = newWidth; - }; - - that.setHeight = function (newHeight) { - calculatedHeight = newHeight; - }; - - that.getRealWidth = function () { - return width; - }; - - that.getRealHeight = function () { - return height; - }; - - that.setInputStream = function (stream) { - _config = stream; - if (stream.sequence === false) { - baseUrl = stream.src; - size = 1; - } else { - baseUrl = stream.src; - size = stream.length; - } - loadImages(); - }; - - that.ended = function () { - return ended; - }; - - that.setAttribute = function () {}; - - that.getConfig = function () { - return _config; - }; - - that.pause = function () { - paused = true; - }; - - that.play = function () { - paused = false; - }; - - that.setCurrentTime = function (time) { - frameIdx = time; - }; - - that.addEventListener = function (event, f) { - if (_eventNames.indexOf(event) !== -1) { - if (!_eventHandlers[event]) { - _eventHandlers[event] = []; - } - _eventHandlers[event].push(f); - } - }; - - that.setTopRight = function (topRight) { - _topRight.x = topRight.x; - _topRight.y = topRight.y; - }; - - that.getTopRight = function () { - return _topRight; - }; - - that.setCanvasSize = function (canvasSize) { - _canvasSize.x = canvasSize.x; - _canvasSize.y = canvasSize.y; - }; - - that.getCanvasSize = function () { - return _canvasSize; - }; - - that.getFrame = function () { - var frame; - - if (!loaded) { - return null; - } - if (!paused) { - frame = imgArray[frameIdx]; - if (frameIdx < size - 1) { - frameIdx++; - } else { - setTimeout(function () { - ended = true; - publishEvent("ended", []); - }, 0); - } - } - return frame; - }; - - return that; - }; - - exports['default'] = InputStream; - module.exports = exports['default']; - -/***/ }, -/* 4 */ -/***/ function(module, exports) { - - "use strict"; - - Object.defineProperty(exports, "__esModule", { - value: true - }); - var ImageLoader = {}; - ImageLoader.load = function (directory, callback, offset, size, sequence) { - var htmlImagesSrcArray = new Array(size), - htmlImagesArray = new Array(htmlImagesSrcArray.length), - i, - img, - num; - - if (sequence === false) { - htmlImagesSrcArray[0] = directory; - } else { - for (i = 0; i < htmlImagesSrcArray.length; i++) { - num = offset + i; - htmlImagesSrcArray[i] = directory + "image-" + ("00" + num).slice(-3) + ".jpg"; - } - } - htmlImagesArray.notLoaded = []; - htmlImagesArray.addImage = function (image) { - htmlImagesArray.notLoaded.push(image); - }; - htmlImagesArray.loaded = function (loadedImg) { - var notloadedImgs = htmlImagesArray.notLoaded; - for (var x = 0; x < notloadedImgs.length; x++) { - if (notloadedImgs[x] === loadedImg) { - notloadedImgs.splice(x, 1); - for (var y = 0; y < htmlImagesSrcArray.length; y++) { - var imgName = htmlImagesSrcArray[y].substr(htmlImagesSrcArray[y].lastIndexOf("/")); - if (loadedImg.src.lastIndexOf(imgName) !== -1) { - htmlImagesArray[y] = loadedImg; - break; - } - } - break; - } - } - if (notloadedImgs.length === 0) { - console.log("Images loaded"); - callback.apply(null, [htmlImagesArray]); - } - }; - - for (i = 0; i < htmlImagesSrcArray.length; i++) { - img = new Image(); - htmlImagesArray.addImage(img); - addOnloadHandler(img, htmlImagesArray); - img.src = htmlImagesSrcArray[i]; - } - }; - - function addOnloadHandler(img, htmlImagesArray) { - img.onload = function () { - htmlImagesArray.loaded(this); - }; - } - - exports["default"] = ImageLoader; - module.exports = exports["default"]; - -/***/ }, -/* 5 */ -/***/ function(module, exports, __webpack_require__) { - - 'use strict'; - - Object.defineProperty(exports, '__esModule', { - value: true - }); - - function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; } - - var _subImage = __webpack_require__(6); - - var _subImage2 = _interopRequireDefault(_subImage); - - var _cv_utils = __webpack_require__(7); - - var _cv_utils2 = _interopRequireDefault(_cv_utils); - - var _array_helper = __webpack_require__(19); - - var _array_helper2 = _interopRequireDefault(_array_helper); - - var _glMatrix = __webpack_require__(9); - - /** - * Represents a basic image combining the data and size. - * In addition, some methods for manipulation are contained. - * @param size {x,y} The size of the image in pixel - * @param data {Array} If given, a flat array containing the pixel data - * @param ArrayType {Type} If given, the desired DataType of the Array (may be typed/non-typed) - * @param initialize {Boolean} Indicating if the array should be initialized on creation. - * @returns {ImageWrapper} - */ - function ImageWrapper(size, data, ArrayType, initialize) { - if (!data) { - if (ArrayType) { - this.data = new ArrayType(size.x * size.y); - if (ArrayType === Array && initialize) { - _array_helper2['default'].init(this.data, 0); - } - } else { - this.data = new Uint8Array(size.x * size.y); - if (Uint8Array === Array && initialize) { - _array_helper2['default'].init(this.data, 0); - } - } - } else { - this.data = data; - } - this.size = size; - } - - /** - * tests if a position is within the image with a given offset - * @param imgRef {x, y} The location to test - * @param border Number the padding value in pixel - * @returns {Boolean} true if location inside the image's border, false otherwise - * @see cvd/image.h - */ - ImageWrapper.prototype.inImageWithBorder = function (imgRef, border) { - return imgRef.x >= border && imgRef.y >= border && imgRef.x < this.size.x - border && imgRef.y < this.size.y - border; - }; - - /** - * Performs bilinear sampling - * @param inImg Image to extract sample from - * @param x the x-coordinate - * @param y the y-coordinate - * @returns the sampled value - * @see cvd/vision.h - */ - ImageWrapper.sample = function (inImg, x, y) { - var lx = Math.floor(x); - var ly = Math.floor(y); - var w = inImg.size.x; - var base = ly * inImg.size.x + lx; - var a = inImg.data[base + 0]; - var b = inImg.data[base + 1]; - var c = inImg.data[base + w]; - var d = inImg.data[base + w + 1]; - var e = a - b; - x -= lx; - y -= ly; - - var result = Math.floor(x * (y * (e - c + d) - e) + y * (c - a) + a); - return result; - }; - - /** - * Initializes a given array. Sets each element to zero. - * @param array {Array} The array to initialize - */ - ImageWrapper.clearArray = function (array) { - var l = array.length; - while (l--) { - array[l] = 0; - } - }; - - /** - * Creates a {SubImage} from the current image ({this}). - * @param from {ImageRef} The position where to start the {SubImage} from. (top-left corner) - * @param size {ImageRef} The size of the resulting image - * @returns {SubImage} A shared part of the original image - */ - ImageWrapper.prototype.subImage = function (from, size) { - return new _subImage2['default'](from, size, this); - }; - - /** - * Creates an {ImageWrapper) and copies the needed underlying image-data area - * @param imageWrapper {ImageWrapper} The target {ImageWrapper} where the data should be copied - * @param from {ImageRef} The location where to copy from (top-left location) - */ - ImageWrapper.prototype.subImageAsCopy = function (imageWrapper, from) { - var sizeY = imageWrapper.size.y, - sizeX = imageWrapper.size.x; - var x, y; - for (x = 0; x < sizeX; x++) { - for (y = 0; y < sizeY; y++) { - imageWrapper.data[y * sizeX + x] = this.data[(from.y + y) * this.size.x + from.x + x]; - } - } - }; - - ImageWrapper.prototype.copyTo = function (imageWrapper) { - var length = this.data.length, - srcData = this.data, - dstData = imageWrapper.data; - - while (length--) { - dstData[length] = srcData[length]; - } - }; - - /** - * Retrieves a given pixel position from the image - * @param x {Number} The x-position - * @param y {Number} The y-position - * @returns {Number} The grayscale value at the pixel-position - */ - ImageWrapper.prototype.get = function (x, y) { - return this.data[y * this.size.x + x]; - }; - - /** - * Retrieves a given pixel position from the image - * @param x {Number} The x-position - * @param y {Number} The y-position - * @returns {Number} The grayscale value at the pixel-position - */ - ImageWrapper.prototype.getSafe = function (x, y) { - var i; + /** + * Retrieves a given pixel position from the image + * @param x {Number} The x-position + * @param y {Number} The y-position + * @returns {Number} The grayscale value at the pixel-position + */ + ImageWrapper.prototype.getSafe = function (x, y) { + var i; if (!this.indexMapping) { this.indexMapping = { @@ -1383,7 +982,7 @@ return /******/ (function(modules) { // webpackBootstrap module.exports = exports['default']; /***/ }, -/* 6 */ +/* 4 */ /***/ function(module, exports) { /** @@ -1478,7 +1077,7 @@ return /******/ (function(modules) { // webpackBootstrap module.exports = exports['default']; /***/ }, -/* 7 */ +/* 5 */ /***/ function(module, exports, __webpack_require__) { 'use strict'; @@ -1489,15 +1088,15 @@ return /******/ (function(modules) { // webpackBootstrap function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; } - var _cluster = __webpack_require__(8); + var _cluster = __webpack_require__(6); var _cluster2 = _interopRequireDefault(_cluster); - var _array_helper = __webpack_require__(19); + var _array_helper = __webpack_require__(17); var _array_helper2 = _interopRequireDefault(_array_helper); - var _glMatrix = __webpack_require__(9); + var _glMatrix = __webpack_require__(7); var CVUtils = {}; @@ -2274,7 +1873,7 @@ return /******/ (function(modules) { // webpackBootstrap module.exports = exports['default']; /***/ }, -/* 8 */ +/* 6 */ /***/ function(module, exports, __webpack_require__) { 'use strict'; @@ -2283,7 +1882,7 @@ return /******/ (function(modules) { // webpackBootstrap value: true }); - var _glMatrix = __webpack_require__(9); + var _glMatrix = __webpack_require__(7); /** * Creates a cluster for grouping similar orientations of datapoints @@ -2353,7 +1952,7 @@ return /******/ (function(modules) { // webpackBootstrap module.exports = exports['default']; /***/ }, -/* 9 */ +/* 7 */ /***/ function(module, exports, __webpack_require__) { /** @@ -2384,18 +1983,18 @@ return /******/ (function(modules) { // webpackBootstrap THE SOFTWARE. */ // END HEADER - exports.glMatrix = __webpack_require__(10); - exports.mat2 = __webpack_require__(11); - exports.mat2d = __webpack_require__(12); - exports.mat3 = __webpack_require__(13); - exports.mat4 = __webpack_require__(14); - exports.quat = __webpack_require__(15); - exports.vec2 = __webpack_require__(18); - exports.vec3 = __webpack_require__(16); - exports.vec4 = __webpack_require__(17); + exports.glMatrix = __webpack_require__(8); + exports.mat2 = __webpack_require__(9); + exports.mat2d = __webpack_require__(10); + exports.mat3 = __webpack_require__(11); + exports.mat4 = __webpack_require__(12); + exports.quat = __webpack_require__(13); + exports.vec2 = __webpack_require__(16); + exports.vec3 = __webpack_require__(14); + exports.vec4 = __webpack_require__(15); /***/ }, -/* 10 */ +/* 8 */ /***/ function(module, exports) { /* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV. @@ -2453,7 +2052,7 @@ return /******/ (function(modules) { // webpackBootstrap /***/ }, -/* 11 */ +/* 9 */ /***/ function(module, exports, __webpack_require__) { /* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV. @@ -2476,7 +2075,7 @@ return /******/ (function(modules) { // webpackBootstrap OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ - var glMatrix = __webpack_require__(10); + var glMatrix = __webpack_require__(8); /** * @class 2x2 Matrix @@ -2761,7 +2360,7 @@ return /******/ (function(modules) { // webpackBootstrap /***/ }, -/* 12 */ +/* 10 */ /***/ function(module, exports, __webpack_require__) { /* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV. @@ -2784,7 +2383,7 @@ return /******/ (function(modules) { // webpackBootstrap OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ - var glMatrix = __webpack_require__(10); + var glMatrix = __webpack_require__(8); /** * @class 2x3 Matrix @@ -3084,7 +2683,7 @@ return /******/ (function(modules) { // webpackBootstrap /***/ }, -/* 13 */ +/* 11 */ /***/ function(module, exports, __webpack_require__) { /* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV. @@ -3107,7 +2706,7 @@ return /******/ (function(modules) { // webpackBootstrap OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ - var glMatrix = __webpack_require__(10); + var glMatrix = __webpack_require__(8); /** * @class 3x3 Matrix @@ -3655,7 +3254,7 @@ return /******/ (function(modules) { // webpackBootstrap /***/ }, -/* 14 */ +/* 12 */ /***/ function(module, exports, __webpack_require__) { /* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV. @@ -3678,7 +3277,7 @@ return /******/ (function(modules) { // webpackBootstrap OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ - var glMatrix = __webpack_require__(10); + var glMatrix = __webpack_require__(8); /** * @class 4x4 Matrix @@ -4944,7 +4543,7 @@ return /******/ (function(modules) { // webpackBootstrap /***/ }, -/* 15 */ +/* 13 */ /***/ function(module, exports, __webpack_require__) { /* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV. @@ -4967,10 +4566,10 @@ return /******/ (function(modules) { // webpackBootstrap OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ - var glMatrix = __webpack_require__(10); - var mat3 = __webpack_require__(13); - var vec3 = __webpack_require__(16); - var vec4 = __webpack_require__(17); + var glMatrix = __webpack_require__(8); + var mat3 = __webpack_require__(11); + var vec3 = __webpack_require__(14); + var vec4 = __webpack_require__(15); /** * @class Quaternion @@ -5503,7 +5102,7 @@ return /******/ (function(modules) { // webpackBootstrap /***/ }, -/* 16 */ +/* 14 */ /***/ function(module, exports, __webpack_require__) { /* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV. @@ -5526,7 +5125,7 @@ return /******/ (function(modules) { // webpackBootstrap OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ - var glMatrix = __webpack_require__(10); + var glMatrix = __webpack_require__(8); /** * @class 3 Dimensional Vector @@ -6218,7 +5817,7 @@ return /******/ (function(modules) { // webpackBootstrap /***/ }, -/* 17 */ +/* 15 */ /***/ function(module, exports, __webpack_require__) { /* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV. @@ -6241,7 +5840,7 @@ return /******/ (function(modules) { // webpackBootstrap OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ - var glMatrix = __webpack_require__(10); + var glMatrix = __webpack_require__(8); /** * @class 4 Dimensional Vector @@ -6761,7 +6360,7 @@ return /******/ (function(modules) { // webpackBootstrap /***/ }, -/* 18 */ +/* 16 */ /***/ function(module, exports, __webpack_require__) { /* Copyright (c) 2015, Brandon Jones, Colin MacKenzie IV. @@ -6784,7 +6383,7 @@ return /******/ (function(modules) { // webpackBootstrap OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ - var glMatrix = __webpack_require__(10); + var glMatrix = __webpack_require__(8); /** * @class 2 Dimensional Vector @@ -7290,7 +6889,7 @@ return /******/ (function(modules) { // webpackBootstrap /***/ }, -/* 19 */ +/* 17 */ /***/ function(module, exports) { "use strict"; @@ -7388,10 +6987,10 @@ return /******/ (function(modules) { // webpackBootstrap module.exports = exports["default"]; /***/ }, -/* 20 */ +/* 18 */ /***/ function(module, exports, __webpack_require__) { - 'use strict'; + /* WEBPACK VAR INJECTION */(function(global) {'use strict'; Object.defineProperty(exports, '__esModule', { value: true @@ -7399,35 +6998,35 @@ return /******/ (function(modules) { // webpackBootstrap function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; } - var _image_wrapper = __webpack_require__(5); + var _image_wrapper = __webpack_require__(3); var _image_wrapper2 = _interopRequireDefault(_image_wrapper); - var _cv_utils = __webpack_require__(7); + var _cv_utils = __webpack_require__(5); var _cv_utils2 = _interopRequireDefault(_cv_utils); - var _rasterizer = __webpack_require__(21); + var _rasterizer = __webpack_require__(19); var _rasterizer2 = _interopRequireDefault(_rasterizer); - var _tracer = __webpack_require__(22); + var _tracer = __webpack_require__(20); var _tracer2 = _interopRequireDefault(_tracer); - var _skeletonizer2 = __webpack_require__(23); + var _skeletonizer2 = __webpack_require__(21); var _skeletonizer3 = _interopRequireDefault(_skeletonizer2); - var _array_helper = __webpack_require__(19); + var _array_helper = __webpack_require__(17); var _array_helper2 = _interopRequireDefault(_array_helper); - var _image_debug = __webpack_require__(24); + var _image_debug = __webpack_require__(22); var _image_debug2 = _interopRequireDefault(_image_debug); - var _glMatrix = __webpack_require__(9); + var _glMatrix = __webpack_require__(7); var _glMatrix2 = _interopRequireDefault(_glMatrix); @@ -7479,7 +7078,7 @@ return /******/ (function(modules) { // webpackBootstrap skeletonImageData = new ArrayBuffer(64 * 1024); _subImageWrapper = new _image_wrapper2['default'](_patchSize, new Uint8Array(skeletonImageData, 0, _patchSize.x * _patchSize.y)); _skelImageWrapper = new _image_wrapper2['default'](_patchSize, new Uint8Array(skeletonImageData, _patchSize.x * _patchSize.y * 3, _patchSize.x * _patchSize.y), undefined, true); - _skeletonizer = (0, _skeletonizer3['default'])(typeof window !== 'undefined' ? window : self, { + _skeletonizer = (0, _skeletonizer3['default'])(typeof window !== 'undefined' ? window : typeof self !== 'undefined' ? self : global, { size: _patchSize.x }, skeletonImageData); @@ -7993,9 +7592,10 @@ return /******/ (function(modules) { // webpackBootstrap } }; module.exports = exports['default']; + /* WEBPACK VAR INJECTION */}.call(exports, (function() { return this; }()))) /***/ }, -/* 21 */ +/* 19 */ /***/ function(module, exports, __webpack_require__) { "use strict"; @@ -8006,7 +7606,7 @@ return /******/ (function(modules) { // webpackBootstrap function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; } - var _tracer = __webpack_require__(22); + var _tracer = __webpack_require__(20); var _tracer2 = _interopRequireDefault(_tracer); @@ -8204,7 +7804,7 @@ return /******/ (function(modules) { // webpackBootstrap module.exports = exports["default"]; /***/ }, -/* 22 */ +/* 20 */ /***/ function(module, exports) { /** @@ -8314,7 +7914,7 @@ return /******/ (function(modules) { // webpackBootstrap module.exports = exports["default"]; /***/ }, -/* 23 */ +/* 21 */ /***/ function(module, exports) { /* @preserve ASM BEGIN */ @@ -8525,7 +8125,7 @@ return /******/ (function(modules) { // webpackBootstrap module.exports = exports["default"]; /***/ }, -/* 24 */ +/* 22 */ /***/ function(module, exports) { "use strict"; @@ -8577,7 +8177,7 @@ return /******/ (function(modules) { // webpackBootstrap module.exports = exports["default"]; /***/ }, -/* 25 */ +/* 23 */ /***/ function(module, exports, __webpack_require__) { 'use strict'; @@ -8588,47 +8188,47 @@ return /******/ (function(modules) { // webpackBootstrap function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; } - var _bresenham = __webpack_require__(26); + var _bresenham = __webpack_require__(24); var _bresenham2 = _interopRequireDefault(_bresenham); - var _image_debug = __webpack_require__(24); + var _image_debug = __webpack_require__(22); var _image_debug2 = _interopRequireDefault(_image_debug); - var _code_128_reader = __webpack_require__(27); + var _code_128_reader = __webpack_require__(25); var _code_128_reader2 = _interopRequireDefault(_code_128_reader); - var _ean_reader = __webpack_require__(29); + var _ean_reader = __webpack_require__(27); var _ean_reader2 = _interopRequireDefault(_ean_reader); - var _code_39_reader = __webpack_require__(30); + var _code_39_reader = __webpack_require__(28); var _code_39_reader2 = _interopRequireDefault(_code_39_reader); - var _code_39_vin_reader = __webpack_require__(31); + var _code_39_vin_reader = __webpack_require__(29); var _code_39_vin_reader2 = _interopRequireDefault(_code_39_vin_reader); - var _codabar_reader = __webpack_require__(32); + var _codabar_reader = __webpack_require__(30); var _codabar_reader2 = _interopRequireDefault(_codabar_reader); - var _upc_reader = __webpack_require__(33); + var _upc_reader = __webpack_require__(31); var _upc_reader2 = _interopRequireDefault(_upc_reader); - var _ean_8_reader = __webpack_require__(34); + var _ean_8_reader = __webpack_require__(32); var _ean_8_reader2 = _interopRequireDefault(_ean_8_reader); - var _upc_e_reader = __webpack_require__(35); + var _upc_e_reader = __webpack_require__(33); var _upc_e_reader2 = _interopRequireDefault(_upc_e_reader); - var _i2of5_reader = __webpack_require__(36); + var _i2of5_reader = __webpack_require__(34); var _i2of5_reader2 = _interopRequireDefault(_i2of5_reader); @@ -8906,7 +8506,7 @@ return /******/ (function(modules) { // webpackBootstrap module.exports = exports['default']; /***/ }, -/* 26 */ +/* 24 */ /***/ function(module, exports, __webpack_require__) { 'use strict'; @@ -8917,11 +8517,11 @@ return /******/ (function(modules) { // webpackBootstrap function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; } - var _cv_utils = __webpack_require__(7); + var _cv_utils = __webpack_require__(5); var _cv_utils2 = _interopRequireDefault(_cv_utils); - var _image_wrapper = __webpack_require__(5); + var _image_wrapper = __webpack_require__(3); var _image_wrapper2 = _interopRequireDefault(_image_wrapper); @@ -9139,7 +8739,7 @@ return /******/ (function(modules) { // webpackBootstrap module.exports = exports['default']; /***/ }, -/* 27 */ +/* 25 */ /***/ function(module, exports, __webpack_require__) { "use strict"; @@ -9150,7 +8750,7 @@ return /******/ (function(modules) { // webpackBootstrap function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; } - var _barcode_reader = __webpack_require__(28); + var _barcode_reader = __webpack_require__(26); var _barcode_reader2 = _interopRequireDefault(_barcode_reader); @@ -9453,7 +9053,7 @@ return /******/ (function(modules) { // webpackBootstrap module.exports = exports["default"]; /***/ }, -/* 28 */ +/* 26 */ /***/ function(module, exports) { 'use strict'; @@ -9686,7 +9286,7 @@ return /******/ (function(modules) { // webpackBootstrap module.exports = exports['default']; /***/ }, -/* 29 */ +/* 27 */ /***/ function(module, exports, __webpack_require__) { "use strict"; @@ -9697,7 +9297,7 @@ return /******/ (function(modules) { // webpackBootstrap function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; } - var _barcode_reader = __webpack_require__(28); + var _barcode_reader = __webpack_require__(26); var _barcode_reader2 = _interopRequireDefault(_barcode_reader); @@ -10009,7 +9609,7 @@ return /******/ (function(modules) { // webpackBootstrap module.exports = exports["default"]; /***/ }, -/* 30 */ +/* 28 */ /***/ function(module, exports, __webpack_require__) { 'use strict'; @@ -10020,11 +9620,11 @@ return /******/ (function(modules) { // webpackBootstrap function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; } - var _barcode_reader = __webpack_require__(28); + var _barcode_reader = __webpack_require__(26); var _barcode_reader2 = _interopRequireDefault(_barcode_reader); - var _array_helper = __webpack_require__(19); + var _array_helper = __webpack_require__(17); var _array_helper2 = _interopRequireDefault(_array_helper); @@ -10238,7 +9838,7 @@ return /******/ (function(modules) { // webpackBootstrap module.exports = exports['default']; /***/ }, -/* 31 */ +/* 29 */ /***/ function(module, exports, __webpack_require__) { 'use strict'; @@ -10249,7 +9849,7 @@ return /******/ (function(modules) { // webpackBootstrap function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; } - var _code_39_reader = __webpack_require__(30); + var _code_39_reader = __webpack_require__(28); var _code_39_reader2 = _interopRequireDefault(_code_39_reader); @@ -10303,7 +9903,7 @@ return /******/ (function(modules) { // webpackBootstrap module.exports = exports['default']; /***/ }, -/* 32 */ +/* 30 */ /***/ function(module, exports, __webpack_require__) { "use strict"; @@ -10314,7 +9914,7 @@ return /******/ (function(modules) { // webpackBootstrap function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; } - var _barcode_reader = __webpack_require__(28); + var _barcode_reader = __webpack_require__(26); var _barcode_reader2 = _interopRequireDefault(_barcode_reader); @@ -10603,7 +10203,7 @@ return /******/ (function(modules) { // webpackBootstrap module.exports = exports["default"]; /***/ }, -/* 33 */ +/* 31 */ /***/ function(module, exports, __webpack_require__) { "use strict"; @@ -10614,7 +10214,7 @@ return /******/ (function(modules) { // webpackBootstrap function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; } - var _ean_reader = __webpack_require__(29); + var _ean_reader = __webpack_require__(27); var _ean_reader2 = _interopRequireDefault(_ean_reader); @@ -10643,7 +10243,7 @@ return /******/ (function(modules) { // webpackBootstrap module.exports = exports["default"]; /***/ }, -/* 34 */ +/* 32 */ /***/ function(module, exports, __webpack_require__) { "use strict"; @@ -10654,7 +10254,7 @@ return /******/ (function(modules) { // webpackBootstrap function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; } - var _ean_reader = __webpack_require__(29); + var _ean_reader = __webpack_require__(27); var _ean_reader2 = _interopRequireDefault(_ean_reader); @@ -10704,7 +10304,7 @@ return /******/ (function(modules) { // webpackBootstrap module.exports = exports["default"]; /***/ }, -/* 35 */ +/* 33 */ /***/ function(module, exports, __webpack_require__) { "use strict"; @@ -10715,7 +10315,7 @@ return /******/ (function(modules) { // webpackBootstrap function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; } - var _ean_reader = __webpack_require__(29); + var _ean_reader = __webpack_require__(27); var _ean_reader2 = _interopRequireDefault(_ean_reader); @@ -10814,7 +10414,7 @@ return /******/ (function(modules) { // webpackBootstrap module.exports = exports["default"]; /***/ }, -/* 36 */ +/* 34 */ /***/ function(module, exports, __webpack_require__) { 'use strict'; @@ -10825,11 +10425,11 @@ return /******/ (function(modules) { // webpackBootstrap function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; } - var _barcode_reader = __webpack_require__(28); + var _barcode_reader = __webpack_require__(26); var _barcode_reader2 = _interopRequireDefault(_barcode_reader); - var merge = __webpack_require__(37); + var merge = __webpack_require__(35); function I2of5Reader(opts) { opts = merge(getDefaulConfig(), opts); @@ -11152,11 +10752,11 @@ return /******/ (function(modules) { // webpackBootstrap module.exports = exports['default']; /***/ }, -/* 37 */ +/* 35 */ /***/ function(module, exports, __webpack_require__) { - var baseMerge = __webpack_require__(38), - createAssigner = __webpack_require__(65); + var baseMerge = __webpack_require__(36), + createAssigner = __webpack_require__(63); /** * Recursively merges own enumerable properties of the source object(s), that @@ -11212,17 +10812,17 @@ return /******/ (function(modules) { // webpackBootstrap /***/ }, -/* 38 */ +/* 36 */ /***/ function(module, exports, __webpack_require__) { - var arrayEach = __webpack_require__(39), - baseMergeDeep = __webpack_require__(40), - isArray = __webpack_require__(48), - isArrayLike = __webpack_require__(43), - isObject = __webpack_require__(52), - isObjectLike = __webpack_require__(47), - isTypedArray = __webpack_require__(60), - keys = __webpack_require__(63); + var arrayEach = __webpack_require__(37), + baseMergeDeep = __webpack_require__(38), + isArray = __webpack_require__(46), + isArrayLike = __webpack_require__(41), + isObject = __webpack_require__(50), + isObjectLike = __webpack_require__(45), + isTypedArray = __webpack_require__(58), + keys = __webpack_require__(61); /** * The base implementation of `_.merge` without support for argument juggling, @@ -11274,7 +10874,7 @@ return /******/ (function(modules) { // webpackBootstrap /***/ }, -/* 39 */ +/* 37 */ /***/ function(module, exports) { /** @@ -11302,16 +10902,16 @@ return /******/ (function(modules) { // webpackBootstrap /***/ }, -/* 40 */ +/* 38 */ /***/ function(module, exports, __webpack_require__) { - var arrayCopy = __webpack_require__(41), - isArguments = __webpack_require__(42), - isArray = __webpack_require__(48), - isArrayLike = __webpack_require__(43), - isPlainObject = __webpack_require__(53), - isTypedArray = __webpack_require__(60), - toPlainObject = __webpack_require__(61); + var arrayCopy = __webpack_require__(39), + isArguments = __webpack_require__(40), + isArray = __webpack_require__(46), + isArrayLike = __webpack_require__(41), + isPlainObject = __webpack_require__(51), + isTypedArray = __webpack_require__(58), + toPlainObject = __webpack_require__(59); /** * A specialized version of `baseMerge` for arrays and objects which performs @@ -11375,7 +10975,7 @@ return /******/ (function(modules) { // webpackBootstrap /***/ }, -/* 41 */ +/* 39 */ /***/ function(module, exports) { /** @@ -11401,11 +11001,11 @@ return /******/ (function(modules) { // webpackBootstrap /***/ }, -/* 42 */ +/* 40 */ /***/ function(module, exports, __webpack_require__) { - var isArrayLike = __webpack_require__(43), - isObjectLike = __webpack_require__(47); + var isArrayLike = __webpack_require__(41), + isObjectLike = __webpack_require__(45); /** Used for native method references. */ var objectProto = Object.prototype; @@ -11441,11 +11041,11 @@ return /******/ (function(modules) { // webpackBootstrap /***/ }, -/* 43 */ +/* 41 */ /***/ function(module, exports, __webpack_require__) { - var getLength = __webpack_require__(44), - isLength = __webpack_require__(46); + var getLength = __webpack_require__(42), + isLength = __webpack_require__(44); /** * Checks if `value` is array-like. @@ -11462,10 +11062,10 @@ return /******/ (function(modules) { // webpackBootstrap /***/ }, -/* 44 */ +/* 42 */ /***/ function(module, exports, __webpack_require__) { - var baseProperty = __webpack_require__(45); + var baseProperty = __webpack_require__(43); /** * Gets the "length" property value of `object`. @@ -11483,7 +11083,7 @@ return /******/ (function(modules) { // webpackBootstrap /***/ }, -/* 45 */ +/* 43 */ /***/ function(module, exports) { /** @@ -11503,7 +11103,7 @@ return /******/ (function(modules) { // webpackBootstrap /***/ }, -/* 46 */ +/* 44 */ /***/ function(module, exports) { /** @@ -11529,7 +11129,7 @@ return /******/ (function(modules) { // webpackBootstrap /***/ }, -/* 47 */ +/* 45 */ /***/ function(module, exports) { /** @@ -11547,12 +11147,12 @@ return /******/ (function(modules) { // webpackBootstrap /***/ }, -/* 48 */ +/* 46 */ /***/ function(module, exports, __webpack_require__) { - var getNative = __webpack_require__(49), - isLength = __webpack_require__(46), - isObjectLike = __webpack_require__(47); + var getNative = __webpack_require__(47), + isLength = __webpack_require__(44), + isObjectLike = __webpack_require__(45); /** `Object#toString` result references. */ var arrayTag = '[object Array]'; @@ -11593,10 +11193,10 @@ return /******/ (function(modules) { // webpackBootstrap /***/ }, -/* 49 */ +/* 47 */ /***/ function(module, exports, __webpack_require__) { - var isNative = __webpack_require__(50); + var isNative = __webpack_require__(48); /** * Gets the native function at `key` of `object`. @@ -11615,11 +11215,11 @@ return /******/ (function(modules) { // webpackBootstrap /***/ }, -/* 50 */ +/* 48 */ /***/ function(module, exports, __webpack_require__) { - var isFunction = __webpack_require__(51), - isObjectLike = __webpack_require__(47); + var isFunction = __webpack_require__(49), + isObjectLike = __webpack_require__(45); /** Used to detect host constructors (Safari > 5). */ var reIsHostCtor = /^\[object .+?Constructor\]$/; @@ -11669,10 +11269,10 @@ return /******/ (function(modules) { // webpackBootstrap /***/ }, -/* 51 */ +/* 49 */ /***/ function(module, exports, __webpack_require__) { - var isObject = __webpack_require__(52); + var isObject = __webpack_require__(50); /** `Object#toString` result references. */ var funcTag = '[object Function]'; @@ -11713,7 +11313,7 @@ return /******/ (function(modules) { // webpackBootstrap /***/ }, -/* 52 */ +/* 50 */ /***/ function(module, exports) { /** @@ -11747,12 +11347,12 @@ return /******/ (function(modules) { // webpackBootstrap /***/ }, -/* 53 */ +/* 51 */ /***/ function(module, exports, __webpack_require__) { - var baseForIn = __webpack_require__(54), - isArguments = __webpack_require__(42), - isObjectLike = __webpack_require__(47); + var baseForIn = __webpack_require__(52), + isArguments = __webpack_require__(40), + isObjectLike = __webpack_require__(45); /** `Object#toString` result references. */ var objectTag = '[object Object]'; @@ -11824,11 +11424,11 @@ return /******/ (function(modules) { // webpackBootstrap /***/ }, -/* 54 */ +/* 52 */ /***/ function(module, exports, __webpack_require__) { - var baseFor = __webpack_require__(55), - keysIn = __webpack_require__(58); + var baseFor = __webpack_require__(53), + keysIn = __webpack_require__(56); /** * The base implementation of `_.forIn` without support for callback @@ -11847,10 +11447,10 @@ return /******/ (function(modules) { // webpackBootstrap /***/ }, -/* 55 */ +/* 53 */ /***/ function(module, exports, __webpack_require__) { - var createBaseFor = __webpack_require__(56); + var createBaseFor = __webpack_require__(54); /** * The base implementation of `baseForIn` and `baseForOwn` which iterates @@ -11870,10 +11470,10 @@ return /******/ (function(modules) { // webpackBootstrap /***/ }, -/* 56 */ +/* 54 */ /***/ function(module, exports, __webpack_require__) { - var toObject = __webpack_require__(57); + var toObject = __webpack_require__(55); /** * Creates a base function for `_.forIn` or `_.forInRight`. @@ -11903,10 +11503,10 @@ return /******/ (function(modules) { // webpackBootstrap /***/ }, -/* 57 */ +/* 55 */ /***/ function(module, exports, __webpack_require__) { - var isObject = __webpack_require__(52); + var isObject = __webpack_require__(50); /** * Converts `value` to an object if it's not one. @@ -11923,14 +11523,14 @@ return /******/ (function(modules) { // webpackBootstrap /***/ }, -/* 58 */ +/* 56 */ /***/ function(module, exports, __webpack_require__) { - var isArguments = __webpack_require__(42), - isArray = __webpack_require__(48), - isIndex = __webpack_require__(59), - isLength = __webpack_require__(46), - isObject = __webpack_require__(52); + var isArguments = __webpack_require__(40), + isArray = __webpack_require__(46), + isIndex = __webpack_require__(57), + isLength = __webpack_require__(44), + isObject = __webpack_require__(50); /** Used for native method references. */ var objectProto = Object.prototype; @@ -11993,7 +11593,7 @@ return /******/ (function(modules) { // webpackBootstrap /***/ }, -/* 59 */ +/* 57 */ /***/ function(module, exports) { /** Used to detect unsigned integer values. */ @@ -12023,11 +11623,11 @@ return /******/ (function(modules) { // webpackBootstrap /***/ }, -/* 60 */ +/* 58 */ /***/ function(module, exports, __webpack_require__) { - var isLength = __webpack_require__(46), - isObjectLike = __webpack_require__(47); + var isLength = __webpack_require__(44), + isObjectLike = __webpack_require__(45); /** `Object#toString` result references. */ var argsTag = '[object Arguments]', @@ -12080,872 +11680,1267 @@ return /******/ (function(modules) { // webpackBootstrap var objToString = objectProto.toString; /** - * Checks if `value` is classified as a typed array. + * Checks if `value` is classified as a typed array. + * + * @static + * @memberOf _ + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`. + * @example + * + * _.isTypedArray(new Uint8Array); + * // => true + * + * _.isTypedArray([]); + * // => false + */ + function isTypedArray(value) { + return isObjectLike(value) && isLength(value.length) && !!typedArrayTags[objToString.call(value)]; + } + + module.exports = isTypedArray; + + +/***/ }, +/* 59 */ +/***/ function(module, exports, __webpack_require__) { + + var baseCopy = __webpack_require__(60), + keysIn = __webpack_require__(56); + + /** + * Converts `value` to a plain object flattening inherited enumerable + * properties of `value` to own properties of the plain object. + * + * @static + * @memberOf _ + * @category Lang + * @param {*} value The value to convert. + * @returns {Object} Returns the converted plain object. + * @example + * + * function Foo() { + * this.b = 2; + * } + * + * Foo.prototype.c = 3; + * + * _.assign({ 'a': 1 }, new Foo); + * // => { 'a': 1, 'b': 2 } + * + * _.assign({ 'a': 1 }, _.toPlainObject(new Foo)); + * // => { 'a': 1, 'b': 2, 'c': 3 } + */ + function toPlainObject(value) { + return baseCopy(value, keysIn(value)); + } + + module.exports = toPlainObject; + + +/***/ }, +/* 60 */ +/***/ function(module, exports) { + + /** + * Copies properties of `source` to `object`. + * + * @private + * @param {Object} source The object to copy properties from. + * @param {Array} props The property names to copy. + * @param {Object} [object={}] The object to copy properties to. + * @returns {Object} Returns `object`. + */ + function baseCopy(source, props, object) { + object || (object = {}); + + var index = -1, + length = props.length; + + while (++index < length) { + var key = props[index]; + object[key] = source[key]; + } + return object; + } + + module.exports = baseCopy; + + +/***/ }, +/* 61 */ +/***/ function(module, exports, __webpack_require__) { + + var getNative = __webpack_require__(47), + isArrayLike = __webpack_require__(41), + isObject = __webpack_require__(50), + shimKeys = __webpack_require__(62); + + /* Native method references for those with the same name as other `lodash` methods. */ + var nativeKeys = getNative(Object, 'keys'); + + /** + * Creates an array of the own enumerable property names of `object`. + * + * **Note:** Non-object values are coerced to objects. See the + * [ES spec](http://ecma-international.org/ecma-262/6.0/#sec-object.keys) + * for more details. + * + * @static + * @memberOf _ + * @category Object + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names. + * @example + * + * function Foo() { + * this.a = 1; + * this.b = 2; + * } + * + * Foo.prototype.c = 3; + * + * _.keys(new Foo); + * // => ['a', 'b'] (iteration order is not guaranteed) + * + * _.keys('hi'); + * // => ['0', '1'] + */ + var keys = !nativeKeys ? shimKeys : function(object) { + var Ctor = object == null ? undefined : object.constructor; + if ((typeof Ctor == 'function' && Ctor.prototype === object) || + (typeof object != 'function' && isArrayLike(object))) { + return shimKeys(object); + } + return isObject(object) ? nativeKeys(object) : []; + }; + + module.exports = keys; + + +/***/ }, +/* 62 */ +/***/ function(module, exports, __webpack_require__) { + + var isArguments = __webpack_require__(40), + isArray = __webpack_require__(46), + isIndex = __webpack_require__(57), + isLength = __webpack_require__(44), + keysIn = __webpack_require__(56); + + /** Used for native method references. */ + var objectProto = Object.prototype; + + /** Used to check objects for own properties. */ + var hasOwnProperty = objectProto.hasOwnProperty; + + /** + * A fallback implementation of `Object.keys` which creates an array of the + * own enumerable property names of `object`. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names. + */ + function shimKeys(object) { + var props = keysIn(object), + propsLength = props.length, + length = propsLength && object.length; + + var allowIndexes = !!length && isLength(length) && + (isArray(object) || isArguments(object)); + + var index = -1, + result = []; + + while (++index < propsLength) { + var key = props[index]; + if ((allowIndexes && isIndex(key, length)) || hasOwnProperty.call(object, key)) { + result.push(key); + } + } + return result; + } + + module.exports = shimKeys; + + +/***/ }, +/* 63 */ +/***/ function(module, exports, __webpack_require__) { + + var bindCallback = __webpack_require__(64), + isIterateeCall = __webpack_require__(66), + restParam = __webpack_require__(67); + + /** + * Creates a `_.assign`, `_.defaults`, or `_.merge` function. + * + * @private + * @param {Function} assigner The function to assign values. + * @returns {Function} Returns the new assigner function. + */ + function createAssigner(assigner) { + return restParam(function(object, sources) { + var index = -1, + length = object == null ? 0 : sources.length, + customizer = length > 2 ? sources[length - 2] : undefined, + guard = length > 2 ? sources[2] : undefined, + thisArg = length > 1 ? sources[length - 1] : undefined; + + if (typeof customizer == 'function') { + customizer = bindCallback(customizer, thisArg, 5); + length -= 2; + } else { + customizer = typeof thisArg == 'function' ? thisArg : undefined; + length -= (customizer ? 1 : 0); + } + if (guard && isIterateeCall(sources[0], sources[1], guard)) { + customizer = length < 3 ? undefined : customizer; + length = 1; + } + while (++index < length) { + var source = sources[index]; + if (source) { + assigner(object, source, customizer); + } + } + return object; + }); + } + + module.exports = createAssigner; + + +/***/ }, +/* 64 */ +/***/ function(module, exports, __webpack_require__) { + + var identity = __webpack_require__(65); + + /** + * A specialized version of `baseCallback` which only supports `this` binding + * and specifying the number of arguments to provide to `func`. + * + * @private + * @param {Function} func The function to bind. + * @param {*} thisArg The `this` binding of `func`. + * @param {number} [argCount] The number of arguments to provide to `func`. + * @returns {Function} Returns the callback. + */ + function bindCallback(func, thisArg, argCount) { + if (typeof func != 'function') { + return identity; + } + if (thisArg === undefined) { + return func; + } + switch (argCount) { + case 1: return function(value) { + return func.call(thisArg, value); + }; + case 3: return function(value, index, collection) { + return func.call(thisArg, value, index, collection); + }; + case 4: return function(accumulator, value, index, collection) { + return func.call(thisArg, accumulator, value, index, collection); + }; + case 5: return function(value, other, key, object, source) { + return func.call(thisArg, value, other, key, object, source); + }; + } + return function() { + return func.apply(thisArg, arguments); + }; + } + + module.exports = bindCallback; + + +/***/ }, +/* 65 */ +/***/ function(module, exports) { + + /** + * This method returns the first argument provided to it. * * @static * @memberOf _ - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`. + * @category Utility + * @param {*} value Any value. + * @returns {*} Returns `value`. * @example * - * _.isTypedArray(new Uint8Array); - * // => true + * var object = { 'user': 'fred' }; * - * _.isTypedArray([]); - * // => false + * _.identity(object) === object; + * // => true */ - function isTypedArray(value) { - return isObjectLike(value) && isLength(value.length) && !!typedArrayTags[objToString.call(value)]; + function identity(value) { + return value; } - module.exports = isTypedArray; + module.exports = identity; /***/ }, -/* 61 */ +/* 66 */ /***/ function(module, exports, __webpack_require__) { - var baseCopy = __webpack_require__(62), - keysIn = __webpack_require__(58); + var isArrayLike = __webpack_require__(41), + isIndex = __webpack_require__(57), + isObject = __webpack_require__(50); /** - * Converts `value` to a plain object flattening inherited enumerable - * properties of `value` to own properties of the plain object. + * Checks if the provided arguments are from an iteratee call. + * + * @private + * @param {*} value The potential iteratee value argument. + * @param {*} index The potential iteratee index or key argument. + * @param {*} object The potential iteratee object argument. + * @returns {boolean} Returns `true` if the arguments are from an iteratee call, else `false`. + */ + function isIterateeCall(value, index, object) { + if (!isObject(object)) { + return false; + } + var type = typeof index; + if (type == 'number' + ? (isArrayLike(object) && isIndex(index, object.length)) + : (type == 'string' && index in object)) { + var other = object[index]; + return value === value ? (value === other) : (other !== other); + } + return false; + } + + module.exports = isIterateeCall; + + +/***/ }, +/* 67 */ +/***/ function(module, exports) { + + /** Used as the `TypeError` message for "Functions" methods. */ + var FUNC_ERROR_TEXT = 'Expected a function'; + + /* Native method references for those with the same name as other `lodash` methods. */ + var nativeMax = Math.max; + + /** + * Creates a function that invokes `func` with the `this` binding of the + * created function and arguments from `start` and beyond provided as an array. + * + * **Note:** This method is based on the [rest parameter](https://developer.mozilla.org/Web/JavaScript/Reference/Functions/rest_parameters). * * @static * @memberOf _ - * @category Lang - * @param {*} value The value to convert. - * @returns {Object} Returns the converted plain object. + * @category Function + * @param {Function} func The function to apply a rest parameter to. + * @param {number} [start=func.length-1] The start position of the rest parameter. + * @returns {Function} Returns the new function. * @example * - * function Foo() { - * this.b = 2; - * } - * - * Foo.prototype.c = 3; - * - * _.assign({ 'a': 1 }, new Foo); - * // => { 'a': 1, 'b': 2 } + * var say = _.restParam(function(what, names) { + * return what + ' ' + _.initial(names).join(', ') + + * (_.size(names) > 1 ? ', & ' : '') + _.last(names); + * }); * - * _.assign({ 'a': 1 }, _.toPlainObject(new Foo)); - * // => { 'a': 1, 'b': 2, 'c': 3 } + * say('hello', 'fred', 'barney', 'pebbles'); + * // => 'hello fred, barney, & pebbles' */ - function toPlainObject(value) { - return baseCopy(value, keysIn(value)); + function restParam(func, start) { + if (typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); + } + start = nativeMax(start === undefined ? (func.length - 1) : (+start || 0), 0); + return function() { + var args = arguments, + index = -1, + length = nativeMax(args.length - start, 0), + rest = Array(length); + + while (++index < length) { + rest[index] = args[start + index]; + } + switch (start) { + case 0: return func.call(this, rest); + case 1: return func.call(this, args[0], rest); + case 2: return func.call(this, args[0], args[1], rest); + } + var otherArgs = Array(start + 1); + index = -1; + while (++index < start) { + otherArgs[index] = args[index]; + } + otherArgs[start] = rest; + return func.apply(this, otherArgs); + }; } - module.exports = toPlainObject; + module.exports = restParam; /***/ }, -/* 62 */ +/* 68 */ /***/ function(module, exports) { - /** - * Copies properties of `source` to `object`. - * - * @private - * @param {Object} source The object to copy properties from. - * @param {Array} props The property names to copy. - * @param {Object} [object={}] The object to copy properties to. - * @returns {Object} Returns `object`. - */ - function baseCopy(source, props, object) { - object || (object = {}); + "use strict"; + + Object.defineProperty(exports, "__esModule", { + value: true + }); + exports["default"] = { + inputStream: { + name: "Live", + type: "LiveStream", + constraints: { + width: 640, + height: 480, + minAspectRatio: 0, + maxAspectRatio: 100, + facing: "environment" // or user + }, + area: { + top: "0%", + right: "0%", + left: "0%", + bottom: "0%" + }, + singleChannel: false // true: only the red color-channel is read + }, + tracking: false, + debug: false, + controls: false, + locate: true, + numOfWorkers: 4, + visual: { + show: true + }, + decoder: { + drawBoundingBox: false, + showFrequency: false, + drawScanline: false, + showPattern: false, + readers: ['code_128_reader'] + }, + locator: { + halfSample: true, + patchSize: "medium", // x-small, small, medium, large, x-large + showCanvas: false, + showPatches: false, + showFoundPatches: false, + showSkeleton: false, + showLabels: false, + showPatchLabels: false, + showRemainingPatchLabels: false, + boxFromPatches: { + showTransformed: false, + showTransformedBox: false, + showBB: false + } + } + }; + module.exports = exports["default"]; + +/***/ }, +/* 69 */ +/***/ function(module, exports) { + + "use strict"; + + Object.defineProperty(exports, "__esModule", { + value: true + }); + + exports["default"] = (function () { + var events = {}; + + function getEvent(eventName) { + if (!events[eventName]) { + events[eventName] = { + subscribers: [] + }; + } + return events[eventName]; + } + + function clearEvents() { + events = {}; + } + + function publishSubscription(subscription, data) { + if (subscription.async) { + setTimeout(function () { + subscription.callback(data); + }, 4); + } else { + subscription.callback(data); + } + } + + function _subscribe(event, callback, async) { + var subscription; + + if (typeof callback === "function") { + subscription = { + callback: callback, + async: async + }; + } else { + subscription = callback; + if (!subscription.callback) { + throw "Callback was not specified on options"; + } + } - var index = -1, - length = props.length; + getEvent(event).subscribers.push(subscription); + } - while (++index < length) { - var key = props[index]; - object[key] = source[key]; - } - return object; - } + return { + subscribe: function subscribe(event, callback, async) { + return _subscribe(event, callback, async); + }, + publish: function publish(eventName, data) { + var event = getEvent(eventName), + subscribers = event.subscribers; - module.exports = baseCopy; - + event.subscribers = subscribers.filter(function (subscriber) { + publishSubscription(subscriber, data); + return !subscriber.once; + }); + }, + once: function once(event, callback, async) { + _subscribe(event, { + callback: callback, + async: async, + once: true + }); + }, + unsubscribe: function unsubscribe(eventName, callback) { + var event; + + if (eventName) { + event = getEvent(eventName); + if (event && callback) { + event.subscribers = event.subscribers.filter(function (subscriber) { + return subscriber.callback !== callback; + }); + } else { + event.subscribers = []; + } + } else { + clearEvents(); + } + } + }; + })(); + + module.exports = exports["default"]; /***/ }, -/* 63 */ +/* 70 */ /***/ function(module, exports, __webpack_require__) { - var getNative = __webpack_require__(49), - isArrayLike = __webpack_require__(43), - isObject = __webpack_require__(52), - shimKeys = __webpack_require__(64); + 'use strict'; - /* Native method references for those with the same name as other `lodash` methods. */ - var nativeKeys = getNative(Object, 'keys'); + Object.defineProperty(exports, '__esModule', { + value: true + }); + var merge = __webpack_require__(35); + + var streamRef, loadedDataHandler; /** - * Creates an array of the own enumerable property names of `object`. - * - * **Note:** Non-object values are coerced to objects. See the - * [ES spec](http://ecma-international.org/ecma-262/6.0/#sec-object.keys) - * for more details. - * - * @static - * @memberOf _ - * @category Object - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property names. - * @example - * - * function Foo() { - * this.a = 1; - * this.b = 2; - * } - * - * Foo.prototype.c = 3; - * - * _.keys(new Foo); - * // => ['a', 'b'] (iteration order is not guaranteed) - * - * _.keys('hi'); - * // => ['0', '1'] + * Wraps browser-specific getUserMedia + * @param {Object} constraints + * @param {Object} success Callback + * @param {Object} failure Callback */ - var keys = !nativeKeys ? shimKeys : function(object) { - var Ctor = object == null ? undefined : object.constructor; - if ((typeof Ctor == 'function' && Ctor.prototype === object) || - (typeof object != 'function' && isArrayLike(object))) { - return shimKeys(object); - } - return isObject(object) ? nativeKeys(object) : []; - }; - - module.exports = keys; - - -/***/ }, -/* 64 */ -/***/ function(module, exports, __webpack_require__) { - - var isArguments = __webpack_require__(42), - isArray = __webpack_require__(48), - isIndex = __webpack_require__(59), - isLength = __webpack_require__(46), - keysIn = __webpack_require__(58); + function getUserMedia(constraints, success, failure) { + if (typeof navigator.getUserMedia !== 'undefined') { + navigator.getUserMedia(constraints, function (stream) { + streamRef = stream; + var videoSrc = window.URL && window.URL.createObjectURL(stream) || stream; + success.apply(null, [videoSrc]); + }, failure); + } else { + failure(new TypeError("getUserMedia not available")); + } + } - /** Used for native method references. */ - var objectProto = Object.prototype; + function loadedData(video, callback) { + var attempts = 10; - /** Used to check objects for own properties. */ - var hasOwnProperty = objectProto.hasOwnProperty; + function checkVideo() { + if (attempts > 0) { + if (video.videoWidth > 0 && video.videoHeight > 0) { + console.log(video.videoWidth + "px x " + video.videoHeight + "px"); + callback(); + } else { + window.setTimeout(checkVideo, 500); + } + } else { + callback('Unable to play video stream. Is webcam working?'); + } + attempts--; + } + checkVideo(); + } /** - * A fallback implementation of `Object.keys` which creates an array of the - * own enumerable property names of `object`. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property names. + * Tries to attach the camera-stream to a given video-element + * and calls the callback function when the content is ready + * @param {Object} constraints + * @param {Object} video + * @param {Object} callback */ - function shimKeys(object) { - var props = keysIn(object), - propsLength = props.length, - length = propsLength && object.length; - - var allowIndexes = !!length && isLength(length) && - (isArray(object) || isArguments(object)); + function initCamera(constraints, video, callback) { + getUserMedia(constraints, function (src) { + video.src = src; + if (loadedDataHandler) { + video.removeEventListener("loadeddata", loadedDataHandler, false); + } + loadedDataHandler = loadedData.bind(null, video, callback); + video.addEventListener('loadeddata', loadedDataHandler, false); + video.play(); + }, function (e) { + callback(e); + }); + } - var index = -1, - result = []; + /** + * Normalizes the incoming constraints to satisfy the current browser + * @param config + * @param cb Callback which is called whenever constraints are created + * @returns {*} + */ + function normalizeConstraints(config, cb) { + var constraints = { + audio: false, + video: true + }, + videoConstraints = merge({ + width: 640, + height: 480, + minAspectRatio: 0, + maxAspectRatio: 100, + facing: "environment" + }, config); - while (++index < propsLength) { - var key = props[index]; - if ((allowIndexes && isIndex(key, length)) || hasOwnProperty.call(object, key)) { - result.push(key); + if (typeof MediaStreamTrack !== 'undefined' && typeof MediaStreamTrack.getSources !== 'undefined') { + MediaStreamTrack.getSources(function (sourceInfos) { + var videoSourceId; + for (var i = 0; i < sourceInfos.length; ++i) { + var sourceInfo = sourceInfos[i]; + if (sourceInfo.kind === "video" && sourceInfo.facing === videoConstraints.facing) { + videoSourceId = sourceInfo.id; + } + } + constraints.video = { + mandatory: { + minWidth: videoConstraints.width, + minHeight: videoConstraints.height, + minAspectRatio: videoConstraints.minAspectRatio, + maxAspectRatio: videoConstraints.maxAspectRatio + }, + optional: [{ + sourceId: videoSourceId + }] + }; + return cb(constraints); + }); + } else { + constraints.video = { + mediaSource: "camera", + width: { min: videoConstraints.width, max: videoConstraints.width }, + height: { min: videoConstraints.height, max: videoConstraints.height }, + require: ["width", "height"] + }; + return cb(constraints); } - } - return result; } - module.exports = shimKeys; - + /** + * Requests the back-facing camera of the user. The callback is called + * whenever the stream is ready to be consumed, or if an error occures. + * @param {Object} video + * @param {Object} callback + */ + function _request(video, videoConstraints, callback) { + normalizeConstraints(videoConstraints, function (constraints) { + initCamera(constraints, video, callback); + }); + } + + exports['default'] = { + request: function request(video, constraints, callback) { + _request(video, constraints, callback); + }, + release: function release() { + var tracks = streamRef && streamRef.getVideoTracks(); + if (tracks.length) { + tracks[0].stop(); + } + streamRef = null; + } + }; + module.exports = exports['default']; /***/ }, -/* 65 */ +/* 71 */ /***/ function(module, exports, __webpack_require__) { - var bindCallback = __webpack_require__(66), - isIterateeCall = __webpack_require__(68), - restParam = __webpack_require__(69); + 'use strict'; - /** - * Creates a `_.assign`, `_.defaults`, or `_.merge` function. - * - * @private - * @param {Function} assigner The function to assign values. - * @returns {Function} Returns the new assigner function. - */ - function createAssigner(assigner) { - return restParam(function(object, sources) { - var index = -1, - length = object == null ? 0 : sources.length, - customizer = length > 2 ? sources[length - 2] : undefined, - guard = length > 2 ? sources[2] : undefined, - thisArg = length > 1 ? sources[length - 1] : undefined; + Object.defineProperty(exports, '__esModule', { + value: true + }); - if (typeof customizer == 'function') { - customizer = bindCallback(customizer, thisArg, 5); - length -= 2; - } else { - customizer = typeof thisArg == 'function' ? thisArg : undefined; - length -= (customizer ? 1 : 0); - } - if (guard && isIterateeCall(sources[0], sources[1], guard)) { - customizer = length < 3 ? undefined : customizer; - length = 1; + function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; } + + var _image_debug = __webpack_require__(22); + + var _image_debug2 = _interopRequireDefault(_image_debug); + + function contains(codeResult, list) { + if (list) { + return list.some(function (item) { + return Object.keys(item).every(function (key) { + return item[key] === codeResult[key]; + }); + }); } - while (++index < length) { - var source = sources[index]; - if (source) { - assigner(object, source, customizer); - } + return false; + } + + function passesFilter(codeResult, filter) { + if (typeof filter === 'function') { + return filter(codeResult); } - return object; - }); + return true; } - module.exports = createAssigner; - - -/***/ }, -/* 66 */ -/***/ function(module, exports, __webpack_require__) { - - var identity = __webpack_require__(67); + exports['default'] = { + create: function create(config) { + var canvas = document.createElement("canvas"), + ctx = canvas.getContext("2d"), + results = [], + capacity = config.capacity || 20, + capture = config.capture === true; - /** - * A specialized version of `baseCallback` which only supports `this` binding - * and specifying the number of arguments to provide to `func`. - * - * @private - * @param {Function} func The function to bind. - * @param {*} thisArg The `this` binding of `func`. - * @param {number} [argCount] The number of arguments to provide to `func`. - * @returns {Function} Returns the callback. - */ - function bindCallback(func, thisArg, argCount) { - if (typeof func != 'function') { - return identity; - } - if (thisArg === undefined) { - return func; - } - switch (argCount) { - case 1: return function(value) { - return func.call(thisArg, value); - }; - case 3: return function(value, index, collection) { - return func.call(thisArg, value, index, collection); - }; - case 4: return function(accumulator, value, index, collection) { - return func.call(thisArg, accumulator, value, index, collection); - }; - case 5: return function(value, other, key, object, source) { - return func.call(thisArg, value, other, key, object, source); - }; - } - return function() { - return func.apply(thisArg, arguments); - }; - } + function matchesConstraints(codeResult) { + return capacity && codeResult && !contains(codeResult, config.blacklist) && passesFilter(codeResult, config.filter); + } - module.exports = bindCallback; - - -/***/ }, -/* 67 */ -/***/ function(module, exports) { - - /** - * This method returns the first argument provided to it. - * - * @static - * @memberOf _ - * @category Utility - * @param {*} value Any value. - * @returns {*} Returns `value`. - * @example - * - * var object = { 'user': 'fred' }; - * - * _.identity(object) === object; - * // => true - */ - function identity(value) { - return value; - } + return { + addResult: function addResult(data, imageSize, codeResult) { + var result = {}; - module.exports = identity; - + if (matchesConstraints(codeResult)) { + capacity--; + result.codeResult = codeResult; + if (capture) { + canvas.width = imageSize.x; + canvas.height = imageSize.y; + _image_debug2['default'].drawImage(data, imageSize, ctx); + result.frame = canvas.toDataURL(); + } + results.push(result); + } + }, + getResults: function getResults() { + return results; + } + }; + } + }; + module.exports = exports['default']; /***/ }, -/* 68 */ +/* 72 */ /***/ function(module, exports, __webpack_require__) { - var isArrayLike = __webpack_require__(43), - isIndex = __webpack_require__(59), - isObject = __webpack_require__(52); + 'use strict'; - /** - * Checks if the provided arguments are from an iteratee call. - * - * @private - * @param {*} value The potential iteratee value argument. - * @param {*} index The potential iteratee index or key argument. - * @param {*} object The potential iteratee object argument. - * @returns {boolean} Returns `true` if the arguments are from an iteratee call, else `false`. - */ - function isIterateeCall(value, index, object) { - if (!isObject(object)) { - return false; - } - var type = typeof index; - if (type == 'number' - ? (isArrayLike(object) && isIndex(index, object.length)) - : (type == 'string' && index in object)) { - var other = object[index]; - return value === value ? (value === other) : (other !== other); - } - return false; - } + Object.defineProperty(exports, '__esModule', { + value: true + }); - module.exports = isIterateeCall; - - -/***/ }, -/* 69 */ -/***/ function(module, exports) { - - /** Used as the `TypeError` message for "Functions" methods. */ - var FUNC_ERROR_TEXT = 'Expected a function'; + function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; } - /* Native method references for those with the same name as other `lodash` methods. */ - var nativeMax = Math.max; + var _image_loader = __webpack_require__(73); - /** - * Creates a function that invokes `func` with the `this` binding of the - * created function and arguments from `start` and beyond provided as an array. - * - * **Note:** This method is based on the [rest parameter](https://developer.mozilla.org/Web/JavaScript/Reference/Functions/rest_parameters). - * - * @static - * @memberOf _ - * @category Function - * @param {Function} func The function to apply a rest parameter to. - * @param {number} [start=func.length-1] The start position of the rest parameter. - * @returns {Function} Returns the new function. - * @example - * - * var say = _.restParam(function(what, names) { - * return what + ' ' + _.initial(names).join(', ') + - * (_.size(names) > 1 ? ', & ' : '') + _.last(names); - * }); - * - * say('hello', 'fred', 'barney', 'pebbles'); - * // => 'hello fred, barney, & pebbles' - */ - function restParam(func, start) { - if (typeof func != 'function') { - throw new TypeError(FUNC_ERROR_TEXT); - } - start = nativeMax(start === undefined ? (func.length - 1) : (+start || 0), 0); - return function() { - var args = arguments, - index = -1, - length = nativeMax(args.length - start, 0), - rest = Array(length); + var _image_loader2 = _interopRequireDefault(_image_loader); - while (++index < length) { - rest[index] = args[start + index]; - } - switch (start) { - case 0: return func.call(this, rest); - case 1: return func.call(this, args[0], rest); - case 2: return func.call(this, args[0], args[1], rest); - } - var otherArgs = Array(start + 1); - index = -1; - while (++index < start) { - otherArgs[index] = args[index]; + var InputStream = {}; + InputStream.createVideoStream = function (video) { + var that = {}, + _config = null, + _eventNames = ['canrecord', 'ended'], + _eventHandlers = {}, + _calculatedWidth, + _calculatedHeight, + _topRight = { x: 0, y: 0 }, + _canvasSize = { x: 0, y: 0 }; + + function initSize() { + var width = video.videoWidth, + height = video.videoHeight; + + _calculatedWidth = _config.size ? width / height > 1 ? _config.size : Math.floor(width / height * _config.size) : width; + _calculatedHeight = _config.size ? width / height > 1 ? Math.floor(height / width * _config.size) : _config.size : height; + + _canvasSize.x = _calculatedWidth; + _canvasSize.y = _calculatedHeight; } - otherArgs[start] = rest; - return func.apply(this, otherArgs); - }; - } - module.exports = restParam; - - -/***/ }, -/* 70 */ -/***/ function(module, exports, __webpack_require__) { - - "use strict"; + that.getRealWidth = function () { + return video.videoWidth; + }; - Object.defineProperty(exports, "__esModule", { - value: true - }); + that.getRealHeight = function () { + return video.videoHeight; + }; - function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; } + that.getWidth = function () { + return _calculatedWidth; + }; - var _cv_utils = __webpack_require__(7); + that.getHeight = function () { + return _calculatedHeight; + }; - var _cv_utils2 = _interopRequireDefault(_cv_utils); + that.setWidth = function (width) { + _calculatedWidth = width; + }; - var FrameGrabber = {}; + that.setHeight = function (height) { + _calculatedHeight = height; + }; - FrameGrabber.create = function (inputStream, canvas) { - var _that = {}, - _streamConfig = inputStream.getConfig(), - _video_size = _cv_utils2["default"].imageRef(inputStream.getRealWidth(), inputStream.getRealHeight()), - _canvasSize = inputStream.getCanvasSize(), - _size = _cv_utils2["default"].imageRef(inputStream.getWidth(), inputStream.getHeight()), - topRight = inputStream.getTopRight(), - _sx = topRight.x, - _sy = topRight.y, - _canvas, - _ctx = null, - _data = null; + that.setInputStream = function (config) { + _config = config; + video.src = typeof config.src !== 'undefined' ? config.src : ''; + }; - _canvas = canvas ? canvas : document.createElement("canvas"); - _canvas.width = _canvasSize.x; - _canvas.height = _canvasSize.y; - _ctx = _canvas.getContext("2d"); - _data = new Uint8Array(_size.x * _size.y); - console.log("FrameGrabber", JSON.stringify({ - size: _size, - topRight: topRight, - videoSize: _video_size, - canvasSize: _canvasSize - })); + that.ended = function () { + return video.ended; + }; - /** - * Uses the given array as frame-buffer - */ - _that.attachData = function (data) { - _data = data; + that.getConfig = function () { + return _config; }; - /** - * Returns the used frame-buffer - */ - _that.getData = function () { - return _data; + that.setAttribute = function (name, value) { + video.setAttribute(name, value); }; - /** - * Fetches a frame from the input-stream and puts into the frame-buffer. - * The image-data is converted to gray-scale and then half-sampled if configured. - */ - _that.grab = function () { - var doHalfSample = _streamConfig.halfSample, - frame = inputStream.getFrame(), - ctxData; - if (frame) { - _ctx.drawImage(frame, 0, 0, _canvasSize.x, _canvasSize.y); - ctxData = _ctx.getImageData(_sx, _sy, _size.x, _size.y).data; - if (doHalfSample) { - _cv_utils2["default"].grayAndHalfSampleFromCanvasData(ctxData, _size, _data); - } else { - _cv_utils2["default"].computeGray(ctxData, _data, _streamConfig); + that.pause = function () { + video.pause(); + }; + + that.play = function () { + video.play(); + }; + + that.setCurrentTime = function (time) { + if (_config.type !== "LiveStream") { + video.currentTime = time; + } + }; + + that.addEventListener = function (event, f, bool) { + if (_eventNames.indexOf(event) !== -1) { + if (!_eventHandlers[event]) { + _eventHandlers[event] = []; } - return true; + _eventHandlers[event].push(f); } else { - return false; + video.addEventListener(event, f, bool); } }; - _that.getSize = function () { - return _size; + that.clearEventHandlers = function () { + _eventNames.forEach(function (eventName) { + var handlers = _eventHandlers[eventName]; + if (handlers && handlers.length > 0) { + handlers.forEach(function (handler) { + video.removeEventListener(eventName, handler); + }); + } + }); }; - return _that; - }; - - exports["default"] = FrameGrabber; - module.exports = exports["default"]; - -/***/ }, -/* 71 */ -/***/ function(module, exports) { - - "use strict"; + that.trigger = function (eventName, args) { + var j, + handlers = _eventHandlers[eventName]; - Object.defineProperty(exports, "__esModule", { - value: true - }); - exports["default"] = { - inputStream: { - name: "Live", - type: "LiveStream", - constraints: { - width: 640, - height: 480, - minAspectRatio: 0, - maxAspectRatio: 100, - facing: "environment" // or user - }, - area: { - top: "0%", - right: "0%", - left: "0%", - bottom: "0%" - }, - singleChannel: false // true: only the red color-channel is read - }, - tracking: false, - debug: false, - controls: false, - locate: true, - numOfWorkers: 4, - visual: { - show: true - }, - decoder: { - drawBoundingBox: false, - showFrequency: false, - drawScanline: false, - showPattern: false, - readers: ['code_128_reader'] - }, - locator: { - halfSample: true, - patchSize: "medium", // x-small, small, medium, large, x-large - showCanvas: false, - showPatches: false, - showFoundPatches: false, - showSkeleton: false, - showLabels: false, - showPatchLabels: false, - showRemainingPatchLabels: false, - boxFromPatches: { - showTransformed: false, - showTransformedBox: false, - showBB: false + if (eventName === 'canrecord') { + initSize(); } - } + if (handlers && handlers.length > 0) { + for (j = 0; j < handlers.length; j++) { + handlers[j].apply(that, args); + } + } + }; + + that.setTopRight = function (topRight) { + _topRight.x = topRight.x; + _topRight.y = topRight.y; + }; + + that.getTopRight = function () { + return _topRight; + }; + + that.setCanvasSize = function (size) { + _canvasSize.x = size.x; + _canvasSize.y = size.y; + }; + + that.getCanvasSize = function () { + return _canvasSize; + }; + + that.getFrame = function () { + return video; + }; + + return that; }; - module.exports = exports["default"]; - -/***/ }, -/* 72 */ -/***/ function(module, exports) { - - "use strict"; - Object.defineProperty(exports, "__esModule", { - value: true - }); + InputStream.createLiveStream = function (video) { + video.setAttribute("autoplay", true); + var that = InputStream.createVideoStream(video); + + that.ended = function () { + return false; + }; + + return that; + }; - exports["default"] = (function () { - var events = {}; + InputStream.createImageStream = function () { + var that = {}; + var _config = null; - function getEvent(eventName) { - if (!events[eventName]) { - events[eventName] = { - subscribers: [] - }; - } - return events[eventName]; - } + var width = 0, + height = 0, + frameIdx = 0, + paused = true, + loaded = false, + imgArray = null, + size = 0, + offset = 1, + baseUrl = null, + ended = false, + calculatedWidth, + calculatedHeight, + _eventNames = ['canrecord', 'ended'], + _eventHandlers = {}, + _topRight = { x: 0, y: 0 }, + _canvasSize = { x: 0, y: 0 }; - function clearEvents() { - events = {}; + function loadImages() { + loaded = false; + _image_loader2['default'].load(baseUrl, function (imgs) { + imgArray = imgs; + width = imgs[0].width; + height = imgs[0].height; + calculatedWidth = _config.size ? width / height > 1 ? _config.size : Math.floor(width / height * _config.size) : width; + calculatedHeight = _config.size ? width / height > 1 ? Math.floor(height / width * _config.size) : _config.size : height; + _canvasSize.x = calculatedWidth; + _canvasSize.y = calculatedHeight; + loaded = true; + frameIdx = 0; + setTimeout(function () { + publishEvent("canrecord", []); + }, 0); + }, offset, size, _config.sequence); } - function publishSubscription(subscription, data) { - if (subscription.async) { - setTimeout(function () { - subscription.callback(data); - }, 4); - } else { - subscription.callback(data); + function publishEvent(eventName, args) { + var j, + handlers = _eventHandlers[eventName]; + + if (handlers && handlers.length > 0) { + for (j = 0; j < handlers.length; j++) { + handlers[j].apply(that, args); + } } } - function _subscribe(event, callback, async) { - var subscription; + that.trigger = publishEvent; - if (typeof callback === "function") { - subscription = { - callback: callback, - async: async - }; + that.getWidth = function () { + return calculatedWidth; + }; + + that.getHeight = function () { + return calculatedHeight; + }; + + that.setWidth = function (newWidth) { + calculatedWidth = newWidth; + }; + + that.setHeight = function (newHeight) { + calculatedHeight = newHeight; + }; + + that.getRealWidth = function () { + return width; + }; + + that.getRealHeight = function () { + return height; + }; + + that.setInputStream = function (stream) { + _config = stream; + if (stream.sequence === false) { + baseUrl = stream.src; + size = 1; } else { - subscription = callback; - if (!subscription.callback) { - throw "Callback was not specified on options"; - } + baseUrl = stream.src; + size = stream.length; } + loadImages(); + }; - getEvent(event).subscribers.push(subscription); - } + that.ended = function () { + return ended; + }; - return { - subscribe: function subscribe(event, callback, async) { - return _subscribe(event, callback, async); - }, - publish: function publish(eventName, data) { - var event = getEvent(eventName), - subscribers = event.subscribers; + that.setAttribute = function () {}; - event.subscribers = subscribers.filter(function (subscriber) { - publishSubscription(subscriber, data); - return !subscriber.once; - }); - }, - once: function once(event, callback, async) { - _subscribe(event, { - callback: callback, - async: async, - once: true - }); - }, - unsubscribe: function unsubscribe(eventName, callback) { - var event; + that.getConfig = function () { + return _config; + }; - if (eventName) { - event = getEvent(eventName); - if (event && callback) { - event.subscribers = event.subscribers.filter(function (subscriber) { - return subscriber.callback !== callback; - }); - } else { - event.subscribers = []; - } - } else { - clearEvents(); + that.pause = function () { + paused = true; + }; + + that.play = function () { + paused = false; + }; + + that.setCurrentTime = function (time) { + frameIdx = time; + }; + + that.addEventListener = function (event, f) { + if (_eventNames.indexOf(event) !== -1) { + if (!_eventHandlers[event]) { + _eventHandlers[event] = []; } + _eventHandlers[event].push(f); } }; - })(); - module.exports = exports["default"]; - -/***/ }, -/* 73 */ -/***/ function(module, exports, __webpack_require__) { - - 'use strict'; + that.setTopRight = function (topRight) { + _topRight.x = topRight.x; + _topRight.y = topRight.y; + }; - Object.defineProperty(exports, '__esModule', { - value: true - }); - var merge = __webpack_require__(37); + that.getTopRight = function () { + return _topRight; + }; - var streamRef, loadedDataHandler; + that.setCanvasSize = function (canvasSize) { + _canvasSize.x = canvasSize.x; + _canvasSize.y = canvasSize.y; + }; - /** - * Wraps browser-specific getUserMedia - * @param {Object} constraints - * @param {Object} success Callback - * @param {Object} failure Callback - */ - function getUserMedia(constraints, success, failure) { - if (typeof navigator.getUserMedia !== 'undefined') { - navigator.getUserMedia(constraints, function (stream) { - streamRef = stream; - var videoSrc = window.URL && window.URL.createObjectURL(stream) || stream; - success.apply(null, [videoSrc]); - }, failure); - } else { - failure(new TypeError("getUserMedia not available")); - } - } + that.getCanvasSize = function () { + return _canvasSize; + }; - function loadedData(video, callback) { - var attempts = 10; + that.getFrame = function () { + var frame; - function checkVideo() { - if (attempts > 0) { - if (video.videoWidth > 0 && video.videoHeight > 0) { - console.log(video.videoWidth + "px x " + video.videoHeight + "px"); - callback(); + if (!loaded) { + return null; + } + if (!paused) { + frame = imgArray[frameIdx]; + if (frameIdx < size - 1) { + frameIdx++; } else { - window.setTimeout(checkVideo, 500); + setTimeout(function () { + ended = true; + publishEvent("ended", []); + }, 0); } - } else { - callback('Unable to play video stream. Is webcam working?'); - } - attempts--; - } - checkVideo(); - } - - /** - * Tries to attach the camera-stream to a given video-element - * and calls the callback function when the content is ready - * @param {Object} constraints - * @param {Object} video - * @param {Object} callback - */ - function initCamera(constraints, video, callback) { - getUserMedia(constraints, function (src) { - video.src = src; - if (loadedDataHandler) { - video.removeEventListener("loadeddata", loadedDataHandler, false); } - loadedDataHandler = loadedData.bind(null, video, callback); - video.addEventListener('loadeddata', loadedDataHandler, false); - video.play(); - }, function (e) { - callback(e); - }); - } + return frame; + }; - /** - * Normalizes the incoming constraints to satisfy the current browser - * @param config - * @param cb Callback which is called whenever constraints are created - * @returns {*} - */ - function normalizeConstraints(config, cb) { - var constraints = { - audio: false, - video: true - }, - videoConstraints = merge({ - width: 640, - height: 480, - minAspectRatio: 0, - maxAspectRatio: 100, - facing: "environment" - }, config); + return that; + }; - if (typeof MediaStreamTrack !== 'undefined' && typeof MediaStreamTrack.getSources !== 'undefined') { - MediaStreamTrack.getSources(function (sourceInfos) { - var videoSourceId; - for (var i = 0; i < sourceInfos.length; ++i) { - var sourceInfo = sourceInfos[i]; - if (sourceInfo.kind === "video" && sourceInfo.facing === videoConstraints.facing) { - videoSourceId = sourceInfo.id; + exports['default'] = InputStream; + module.exports = exports['default']; + +/***/ }, +/* 73 */ +/***/ function(module, exports) { + + "use strict"; + + Object.defineProperty(exports, "__esModule", { + value: true + }); + var ImageLoader = {}; + ImageLoader.load = function (directory, callback, offset, size, sequence) { + var htmlImagesSrcArray = new Array(size), + htmlImagesArray = new Array(htmlImagesSrcArray.length), + i, + img, + num; + + if (sequence === false) { + htmlImagesSrcArray[0] = directory; + } else { + for (i = 0; i < htmlImagesSrcArray.length; i++) { + num = offset + i; + htmlImagesSrcArray[i] = directory + "image-" + ("00" + num).slice(-3) + ".jpg"; + } + } + htmlImagesArray.notLoaded = []; + htmlImagesArray.addImage = function (image) { + htmlImagesArray.notLoaded.push(image); + }; + htmlImagesArray.loaded = function (loadedImg) { + var notloadedImgs = htmlImagesArray.notLoaded; + for (var x = 0; x < notloadedImgs.length; x++) { + if (notloadedImgs[x] === loadedImg) { + notloadedImgs.splice(x, 1); + for (var y = 0; y < htmlImagesSrcArray.length; y++) { + var imgName = htmlImagesSrcArray[y].substr(htmlImagesSrcArray[y].lastIndexOf("/")); + if (loadedImg.src.lastIndexOf(imgName) !== -1) { + htmlImagesArray[y] = loadedImg; + break; + } } + break; } - constraints.video = { - mandatory: { - minWidth: videoConstraints.width, - minHeight: videoConstraints.height, - minAspectRatio: videoConstraints.minAspectRatio, - maxAspectRatio: videoConstraints.maxAspectRatio - }, - optional: [{ - sourceId: videoSourceId - }] - }; - return cb(constraints); - }); - } else { - constraints.video = { - mediaSource: "camera", - width: { min: videoConstraints.width, max: videoConstraints.width }, - height: { min: videoConstraints.height, max: videoConstraints.height }, - require: ["width", "height"] - }; - return cb(constraints); + } + if (notloadedImgs.length === 0) { + console.log("Images loaded"); + callback.apply(null, [htmlImagesArray]); + } + }; + + for (i = 0; i < htmlImagesSrcArray.length; i++) { + img = new Image(); + htmlImagesArray.addImage(img); + addOnloadHandler(img, htmlImagesArray); + img.src = htmlImagesSrcArray[i]; } - } + }; - /** - * Requests the back-facing camera of the user. The callback is called - * whenever the stream is ready to be consumed, or if an error occures. - * @param {Object} video - * @param {Object} callback - */ - function _request(video, videoConstraints, callback) { - normalizeConstraints(videoConstraints, function (constraints) { - initCamera(constraints, video, callback); - }); + function addOnloadHandler(img, htmlImagesArray) { + img.onload = function () { + htmlImagesArray.loaded(this); + }; } - exports['default'] = { - request: function request(video, constraints, callback) { - _request(video, constraints, callback); - }, - release: function release() { - var tracks = streamRef && streamRef.getVideoTracks(); - if (tracks.length) { - tracks[0].stop(); - } - streamRef = null; - } - }; - module.exports = exports['default']; + exports["default"] = ImageLoader; + module.exports = exports["default"]; /***/ }, /* 74 */ /***/ function(module, exports, __webpack_require__) { - 'use strict'; + "use strict"; - Object.defineProperty(exports, '__esModule', { + Object.defineProperty(exports, "__esModule", { value: true }); - function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; } + function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; } - var _image_debug = __webpack_require__(24); + var _cv_utils = __webpack_require__(5); - var _image_debug2 = _interopRequireDefault(_image_debug); + var _cv_utils2 = _interopRequireDefault(_cv_utils); - function contains(codeResult, list) { - if (list) { - return list.some(function (item) { - return Object.keys(item).every(function (key) { - return item[key] === codeResult[key]; - }); - }); - } - return false; - } + var FrameGrabber = {}; - function passesFilter(codeResult, filter) { - if (typeof filter === 'function') { - return filter(codeResult); - } - return true; - } + FrameGrabber.create = function (inputStream, canvas) { + var _that = {}, + _streamConfig = inputStream.getConfig(), + _video_size = _cv_utils2["default"].imageRef(inputStream.getRealWidth(), inputStream.getRealHeight()), + _canvasSize = inputStream.getCanvasSize(), + _size = _cv_utils2["default"].imageRef(inputStream.getWidth(), inputStream.getHeight()), + topRight = inputStream.getTopRight(), + _sx = topRight.x, + _sy = topRight.y, + _canvas, + _ctx = null, + _data = null; - exports['default'] = { - create: function create(config) { - var canvas = document.createElement("canvas"), - ctx = canvas.getContext("2d"), - results = [], - capacity = config.capacity || 20, - capture = config.capture === true; + _canvas = canvas ? canvas : document.createElement("canvas"); + _canvas.width = _canvasSize.x; + _canvas.height = _canvasSize.y; + _ctx = _canvas.getContext("2d"); + _data = new Uint8Array(_size.x * _size.y); + console.log("FrameGrabber", JSON.stringify({ + size: _size, + topRight: topRight, + videoSize: _video_size, + canvasSize: _canvasSize + })); - function matchesConstraints(codeResult) { - return capacity && codeResult && !contains(codeResult, config.blacklist) && passesFilter(codeResult, config.filter); - } + /** + * Uses the given array as frame-buffer + */ + _that.attachData = function (data) { + _data = data; + }; - return { - addResult: function addResult(data, imageSize, codeResult) { - var result = {}; + /** + * Returns the used frame-buffer + */ + _that.getData = function () { + return _data; + }; - if (matchesConstraints(codeResult)) { - capacity--; - result.codeResult = codeResult; - if (capture) { - canvas.width = imageSize.x; - canvas.height = imageSize.y; - _image_debug2['default'].drawImage(data, imageSize, ctx); - result.frame = canvas.toDataURL(); - } - results.push(result); - } - }, - getResults: function getResults() { - return results; + /** + * Fetches a frame from the input-stream and puts into the frame-buffer. + * The image-data is converted to gray-scale and then half-sampled if configured. + */ + _that.grab = function () { + var doHalfSample = 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t},o.invert=function(t,e){var n=e[0],r=e[1],o=e[2],a=e[3],i=e[4],u=e[5],c=e[6],f=e[7],l=e[8],s=l*i-u*f,d=-l*a+u*c,h=f*a-i*c,p=n*s+r*d+o*h;return p?(p=1/p,t[0]=s*p,t[1]=(-l*r+o*f)*p,t[2]=(u*r-o*i)*p,t[3]=d*p,t[4]=(l*n-o*c)*p,t[5]=(-u*n+o*a)*p,t[6]=h*p,t[7]=(-f*n+r*c)*p,t[8]=(i*n-r*a)*p,t):null},o.adjoint=function(t,e){var n=e[0],r=e[1],o=e[2],a=e[3],i=e[4],u=e[5],c=e[6],f=e[7],l=e[8];return t[0]=i*l-u*f,t[1]=o*f-r*l,t[2]=r*u-o*i,t[3]=u*c-a*l,t[4]=n*l-o*c,t[5]=o*a-n*u,t[6]=a*f-i*c,t[7]=r*c-n*f,t[8]=n*i-r*a,t},o.determinant=function(t){var e=t[0],n=t[1],r=t[2],o=t[3],a=t[4],i=t[5],u=t[6],c=t[7],f=t[8];return e*(f*a-i*c)+n*(-f*o+i*u)+r*(c*o-a*u)},o.multiply=function(t,e,n){var r=e[0],o=e[1],a=e[2],i=e[3],u=e[4],c=e[5],f=e[6],l=e[7],s=e[8],d=n[0],h=n[1],p=n[2],v=n[3],g=n[4],m=n[5],y=n[6],_=n[7],x=n[8];return t[0]=d*r+h*i+p*f,t[1]=d*o+h*u+p*l,t[2]=d*a+h*c+p*s,t[3]=v*r+g*i+m*f,t[4]=v*o+g*u+m*l,t[5]=v*a+g*c+m*s,t[6]=y*r+_*i+x*f,t[7]=y*o+_*u+x*l,t[8]=y*a+_*c+x*s,t},o.mul=o.multiply,o.translate=function(t,e,n){var r=e[0],o=e[1],a=e[2],i=e[3],u=e[4],c=e[5],f=e[6],l=e[7],s=e[8],d=n[0],h=n[1];return t[0]=r,t[1]=o,t[2]=a,t[3]=i,t[4]=u,t[5]=c,t[6]=d*r+h*i+f,t[7]=d*o+h*u+l,t[8]=d*a+h*c+s,t},o.rotate=function(t,e,n){var r=e[0],o=e[1],a=e[2],i=e[3],u=e[4],c=e[5],f=e[6],l=e[7],s=e[8],d=Math.sin(n),h=Math.cos(n);return t[0]=h*r+d*i,t[1]=h*o+d*u,t[2]=h*a+d*c,t[3]=h*i-d*r,t[4]=h*u-d*o,t[5]=h*c-d*a,t[6]=f,t[7]=l,t[8]=s,t},o.scale=function(t,e,n){var r=n[0],o=n[1];return t[0]=r*e[0],t[1]=r*e[1],t[2]=r*e[2],t[3]=o*e[3],t[4]=o*e[4],t[5]=o*e[5],t[6]=e[6],t[7]=e[7],t[8]=e[8],t},o.fromTranslation=function(t,e){return t[0]=1,t[1]=0,t[2]=0,t[3]=0,t[4]=1,t[5]=0,t[6]=e[0],t[7]=e[1],t[8]=1,t},o.fromRotation=function(t,e){var n=Math.sin(e),r=Math.cos(e);return t[0]=r,t[1]=n,t[2]=0,t[3]=-n,t[4]=r,t[5]=0,t[6]=0,t[7]=0,t[8]=1,t},o.fromScaling=function(t,e){return t[0]=e[0],t[1]=0,t[2]=0,t[3]=0,t[4]=e[1],t[5]=0,t[6]=0,t[7]=0,t[8]=1,t},o.fromMat2d=function(t,e){return t[0]=e[0],t[1]=e[1],t[2]=0,t[3]=e[2],t[4]=e[3],t[5]=0,t[6]=e[4],t[7]=e[5],t[8]=1,t},o.fromQuat=function(t,e){var n=e[0],r=e[1],o=e[2],a=e[3],i=n+n,u=r+r,c=o+o,f=n*i,l=r*i,s=r*u,d=o*i,h=o*u,p=o*c,v=a*i,g=a*u,m=a*c;return t[0]=1-s-p,t[3]=l-m,t[6]=d+g,t[1]=l+m,t[4]=1-f-p,t[7]=h-v,t[2]=d-g,t[5]=h+v,t[8]=1-f-s,t},o.normalFromMat4=function(t,e){var n=e[0],r=e[1],o=e[2],a=e[3],i=e[4],u=e[5],c=e[6],f=e[7],l=e[8],s=e[9],d=e[10],h=e[11],p=e[12],v=e[13],g=e[14],m=e[15],y=n*u-r*i,_=n*c-o*i,x=n*f-a*i,M=r*c-o*u,b=r*f-a*u,w=o*f-a*c,R=l*v-s*p,A=l*g-d*p,E=l*m-h*p,C=s*g-d*v,O=s*m-h*v,T=d*m-h*g,D=y*T-_*O+x*C+M*E-b*A+w*R;return D?(D=1/D,t[0]=(u*T-c*O+f*C)*D,t[1]=(c*E-i*T-f*A)*D,t[2]=(i*O-u*E+f*R)*D,t[3]=(o*O-r*T-a*C)*D,t[4]=(n*T-o*E+a*A)*D,t[5]=(r*E-n*O-a*R)*D,t[6]=(v*w-g*b+m*M)*D,t[7]=(g*x-p*w-m*_)*D,t[8]=(p*b-v*x+m*y)*D,t):null},o.str=function(t){return"mat3("+t[0]+", "+t[1]+", "+t[2]+", "+t[3]+", "+t[4]+", "+t[5]+", "+t[6]+", "+t[7]+", "+t[8]+")"},o.frob=function(t){return Math.sqrt(Math.pow(t[0],2)+Math.pow(t[1],2)+Math.pow(t[2],2)+Math.pow(t[3],2)+Math.pow(t[4],2)+Math.pow(t[5],2)+Math.pow(t[6],2)+Math.pow(t[7],2)+Math.pow(t[8],2))},t.exports=o},function(t,e,n){var r=n(10),o={};o.create=function(){var t=new r.ARRAY_TYPE(16);return t[0]=1,t[1]=0,t[2]=0,t[3]=0,t[4]=0,t[5]=1,t[6]=0,t[7]=0,t[8]=0,t[9]=0,t[10]=1,t[11]=0,t[12]=0,t[13]=0,t[14]=0,t[15]=1,t},o.clone=function(t){var e=new r.ARRAY_TYPE(16);return e[0]=t[0],e[1]=t[1],e[2]=t[2],e[3]=t[3],e[4]=t[4],e[5]=t[5],e[6]=t[6],e[7]=t[7],e[8]=t[8],e[9]=t[9],e[10]=t[10],e[11]=t[11],e[12]=t[12],e[13]=t[13],e[14]=t[14],e[15]=t[15],e},o.copy=function(t,e){return t[0]=e[0], -t[1]=e[1],t[2]=e[2],t[3]=e[3],t[4]=e[4],t[5]=e[5],t[6]=e[6],t[7]=e[7],t[8]=e[8],t[9]=e[9],t[10]=e[10],t[11]=e[11],t[12]=e[12],t[13]=e[13],t[14]=e[14],t[15]=e[15],t},o.identity=function(t){return t[0]=1,t[1]=0,t[2]=0,t[3]=0,t[4]=0,t[5]=1,t[6]=0,t[7]=0,t[8]=0,t[9]=0,t[10]=1,t[11]=0,t[12]=0,t[13]=0,t[14]=0,t[15]=1,t},o.transpose=function(t,e){if(t===e){var n=e[1],r=e[2],o=e[3],a=e[6],i=e[7],u=e[11];t[1]=e[4],t[2]=e[8],t[3]=e[12],t[4]=n,t[6]=e[9],t[7]=e[13],t[8]=r,t[9]=a,t[11]=e[14],t[12]=o,t[13]=i,t[14]=u}else t[0]=e[0],t[1]=e[4],t[2]=e[8],t[3]=e[12],t[4]=e[1],t[5]=e[5],t[6]=e[9],t[7]=e[13],t[8]=e[2],t[9]=e[6],t[10]=e[10],t[11]=e[14],t[12]=e[3],t[13]=e[7],t[14]=e[11],t[15]=e[15];return t},o.invert=function(t,e){var n=e[0],r=e[1],o=e[2],a=e[3],i=e[4],u=e[5],c=e[6],f=e[7],l=e[8],s=e[9],d=e[10],h=e[11],p=e[12],v=e[13],g=e[14],m=e[15],y=n*u-r*i,_=n*c-o*i,x=n*f-a*i,M=r*c-o*u,b=r*f-a*u,w=o*f-a*c,R=l*v-s*p,A=l*g-d*p,E=l*m-h*p,C=s*g-d*v,O=s*m-h*v,T=d*m-h*g,D=y*T-_*O+x*C+M*E-b*A+w*R;return D?(D=1/D,t[0]=(u*T-c*O+f*C)*D,t[1]=(o*O-r*T-a*C)*D,t[2]=(v*w-g*b+m*M)*D,t[3]=(d*b-s*w-h*M)*D,t[4]=(c*E-i*T-f*A)*D,t[5]=(n*T-o*E+a*A)*D,t[6]=(g*x-p*w-m*_)*D,t[7]=(l*w-d*x+h*_)*D,t[8]=(i*O-u*E+f*R)*D,t[9]=(r*E-n*O-a*R)*D,t[10]=(p*b-v*x+m*y)*D,t[11]=(s*x-l*b-h*y)*D,t[12]=(u*A-i*C-c*R)*D,t[13]=(n*C-r*A+o*R)*D,t[14]=(v*_-p*M-g*y)*D,t[15]=(l*M-s*_+d*y)*D,t):null},o.adjoint=function(t,e){var n=e[0],r=e[1],o=e[2],a=e[3],i=e[4],u=e[5],c=e[6],f=e[7],l=e[8],s=e[9],d=e[10],h=e[11],p=e[12],v=e[13],g=e[14],m=e[15];return t[0]=u*(d*m-h*g)-s*(c*m-f*g)+v*(c*h-f*d),t[1]=-(r*(d*m-h*g)-s*(o*m-a*g)+v*(o*h-a*d)),t[2]=r*(c*m-f*g)-u*(o*m-a*g)+v*(o*f-a*c),t[3]=-(r*(c*h-f*d)-u*(o*h-a*d)+s*(o*f-a*c)),t[4]=-(i*(d*m-h*g)-l*(c*m-f*g)+p*(c*h-f*d)),t[5]=n*(d*m-h*g)-l*(o*m-a*g)+p*(o*h-a*d),t[6]=-(n*(c*m-f*g)-i*(o*m-a*g)+p*(o*f-a*c)),t[7]=n*(c*h-f*d)-i*(o*h-a*d)+l*(o*f-a*c),t[8]=i*(s*m-h*v)-l*(u*m-f*v)+p*(u*h-f*s),t[9]=-(n*(s*m-h*v)-l*(r*m-a*v)+p*(r*h-a*s)),t[10]=n*(u*m-f*v)-i*(r*m-a*v)+p*(r*f-a*u),t[11]=-(n*(u*h-f*s)-i*(r*h-a*s)+l*(r*f-a*u)),t[12]=-(i*(s*g-d*v)-l*(u*g-c*v)+p*(u*d-c*s)),t[13]=n*(s*g-d*v)-l*(r*g-o*v)+p*(r*d-o*s),t[14]=-(n*(u*g-c*v)-i*(r*g-o*v)+p*(r*c-o*u)),t[15]=n*(u*d-c*s)-i*(r*d-o*s)+l*(r*c-o*u),t},o.determinant=function(t){var e=t[0],n=t[1],r=t[2],o=t[3],a=t[4],i=t[5],u=t[6],c=t[7],f=t[8],l=t[9],s=t[10],d=t[11],h=t[12],p=t[13],v=t[14],g=t[15],m=e*i-n*a,y=e*u-r*a,_=e*c-o*a,x=n*u-r*i,M=n*c-o*i,b=r*c-o*u,w=f*p-l*h,R=f*v-s*h,A=f*g-d*h,E=l*v-s*p,C=l*g-d*p,O=s*g-d*v;return m*O-y*C+_*E+x*A-M*R+b*w},o.multiply=function(t,e,n){var r=e[0],o=e[1],a=e[2],i=e[3],u=e[4],c=e[5],f=e[6],l=e[7],s=e[8],d=e[9],h=e[10],p=e[11],v=e[12],g=e[13],m=e[14],y=e[15],_=n[0],x=n[1],M=n[2],b=n[3];return t[0]=_*r+x*u+M*s+b*v,t[1]=_*o+x*c+M*d+b*g,t[2]=_*a+x*f+M*h+b*m,t[3]=_*i+x*l+M*p+b*y,_=n[4],x=n[5],M=n[6],b=n[7],t[4]=_*r+x*u+M*s+b*v,t[5]=_*o+x*c+M*d+b*g,t[6]=_*a+x*f+M*h+b*m,t[7]=_*i+x*l+M*p+b*y,_=n[8],x=n[9],M=n[10],b=n[11],t[8]=_*r+x*u+M*s+b*v,t[9]=_*o+x*c+M*d+b*g,t[10]=_*a+x*f+M*h+b*m,t[11]=_*i+x*l+M*p+b*y,_=n[12],x=n[13],M=n[14],b=n[15],t[12]=_*r+x*u+M*s+b*v,t[13]=_*o+x*c+M*d+b*g,t[14]=_*a+x*f+M*h+b*m,t[15]=_*i+x*l+M*p+b*y,t},o.mul=o.multiply,o.translate=function(t,e,n){var r,o,a,i,u,c,f,l,s,d,h,p,v=n[0],g=n[1],m=n[2];return e===t?(t[12]=e[0]*v+e[4]*g+e[8]*m+e[12],t[13]=e[1]*v+e[5]*g+e[9]*m+e[13],t[14]=e[2]*v+e[6]*g+e[10]*m+e[14],t[15]=e[3]*v+e[7]*g+e[11]*m+e[15]):(r=e[0],o=e[1],a=e[2],i=e[3],u=e[4],c=e[5],f=e[6],l=e[7],s=e[8],d=e[9],h=e[10],p=e[11],t[0]=r,t[1]=o,t[2]=a,t[3]=i,t[4]=u,t[5]=c,t[6]=f,t[7]=l,t[8]=s,t[9]=d,t[10]=h,t[11]=p,t[12]=r*v+u*g+s*m+e[12],t[13]=o*v+c*g+d*m+e[13],t[14]=a*v+f*g+h*m+e[14],t[15]=i*v+l*g+p*m+e[15]),t},o.scale=function(t,e,n){var r=n[0],o=n[1],a=n[2];return t[0]=e[0]*r,t[1]=e[1]*r,t[2]=e[2]*r,t[3]=e[3]*r,t[4]=e[4]*o,t[5]=e[5]*o,t[6]=e[6]*o,t[7]=e[7]*o,t[8]=e[8]*a,t[9]=e[9]*a,t[10]=e[10]*a,t[11]=e[11]*a,t[12]=e[12],t[13]=e[13],t[14]=e[14],t[15]=e[15],t},o.rotate=function(t,e,n,o){var a,i,u,c,f,l,s,d,h,p,v,g,m,y,_,x,M,b,w,R,A,E,C,O,T=o[0],D=o[1],S=o[2],P=Math.sqrt(T*T+D*D+S*S);return Math.abs(P)c?(a.cross(t,e,o),a.length(t)<1e-6&&a.cross(t,n,o),a.normalize(t,t),u.setAxisAngle(r,t,Math.PI),r):c>.999999?(r[0]=0,r[1]=0,r[2]=0,r[3]=1,r):(a.cross(t,o,i),r[0]=t[0],r[1]=t[1],r[2]=t[2],r[3]=1+c,u.normalize(r,r))}}(),u.setAxes=function(){var t=o.create();return function(e,n,r,o){return t[0]=r[0],t[3]=r[1],t[6]=r[2],t[1]=o[0],t[4]=o[1],t[7]=o[2],t[2]=-n[0],t[5]=-n[1],t[8]=-n[2],u.normalize(e,u.fromMat3(e,t))}}(),u.clone=i.clone,u.fromValues=i.fromValues,u.copy=i.copy,u.set=i.set,u.identity=function(t){return t[0]=0,t[1]=0,t[2]=0,t[3]=1,t},u.setAxisAngle=function(t,e,n){n=.5*n;var r=Math.sin(n);return t[0]=r*e[0],t[1]=r*e[1],t[2]=r*e[2],t[3]=Math.cos(n),t},u.add=i.add,u.multiply=function(t,e,n){var r=e[0],o=e[1],a=e[2],i=e[3],u=n[0],c=n[1],f=n[2],l=n[3];return t[0]=r*l+i*u+o*f-a*c,t[1]=o*l+i*c+a*u-r*f,t[2]=a*l+i*f+r*c-o*u,t[3]=i*l-r*u-o*c-a*f,t},u.mul=u.multiply,u.scale=i.scale,u.rotateX=function(t,e,n){n*=.5;var r=e[0],o=e[1],a=e[2],i=e[3],u=Math.sin(n),c=Math.cos(n);return 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1|0;xStart2=u+1|0;sum=(images[inImagePtr+yStart1+xStart1|0]|0)+(images[inImagePtr+yStart1+xStart2|0]|0)+(images[inImagePtr+offset+u|0]|0)+(images[inImagePtr+yStart2+xStart1|0]|0)+(images[inImagePtr+yStart2+xStart2|0]|0)|0;if ((sum|0) == (5|0)) {images[outImagePtr+offset+u|0]=1;} else {images[outImagePtr+offset+u|0]=0;}}}return;}function subtract(aImagePtr, bImagePtr, outImagePtr) {aImagePtr=aImagePtr|0;bImagePtr=bImagePtr|0;outImagePtr=outImagePtr|0;var length=0;length=imul(size, size)|0;while ((length|0)>0) {length=length - 1|0;images[outImagePtr+length|0]=(images[aImagePtr+length|0]|0) - (images[bImagePtr+length|0]|0)|0;}}function bitwiseOr(aImagePtr, bImagePtr, outImagePtr) {aImagePtr=aImagePtr|0;bImagePtr=bImagePtr|0;outImagePtr=outImagePtr|0;var length=0;length=imul(size, size)|0;while ((length|0)>0) {length=length - 1|0;images[outImagePtr+length|0]=images[aImagePtr+length|0]|0|(images[bImagePtr+length|0]|0)|0;}}function countNonZero(imagePtr) {imagePtr=imagePtr|0;var sum=0,length=0;length=imul(size, size)|0;while ((length|0)>0) {length=length - 1|0;sum=(sum|0)+(images[imagePtr+length|0]|0)|0;}return sum|0;}function init(imagePtr, value) {imagePtr=imagePtr|0;value=value|0;var length=0;length=imul(size, size)|0;while ((length|0)>0) {length=length - 1|0;images[imagePtr+length|0]=value;}}function dilate(inImagePtr, outImagePtr) {inImagePtr=inImagePtr|0;outImagePtr=outImagePtr|0;var v=0,u=0,sum=0,yStart1=0,yStart2=0,xStart1=0,xStart2=0,offset=0;for (v=1; (v|0)<(size - 1|0); v=v+1|0) {offset=offset+size|0;for (u=1; (u|0)<(size - 1|0); u=u+1|0) {yStart1=offset - size|0;yStart2=offset+size|0;xStart1=u - 1|0;xStart2=u+1|0;sum=(images[inImagePtr+yStart1+xStart1|0]|0)+(images[inImagePtr+yStart1+xStart2|0]|0)+(images[inImagePtr+offset+u|0]|0)+(images[inImagePtr+yStart2+xStart1|0]|0)+(images[inImagePtr+yStart2+xStart2|0]|0)|0;if ((sum|0)>(0|0)) {images[outImagePtr+offset+u|0]=1;} else {images[outImagePtr+offset+u|0]=0;}}}return;}function memcpy(srcImagePtr, dstImagePtr) {srcImagePtr=srcImagePtr|0;dstImagePtr=dstImagePtr|0;var length=0;length=imul(size, size)|0;while ((length|0)>0) {length=length - 1|0;images[dstImagePtr+length|0]=images[srcImagePtr+length|0]|0;}}function zeroBorder(imagePtr) {imagePtr=imagePtr|0;var x=0,y=0;for (x=0; (x|0)<(size - 1|0); x=x+1|0) {images[imagePtr+x|0]=0;images[imagePtr+y|0]=0;y=y+size - 1|0;images[imagePtr+y|0]=0;y=y+1|0;}for (x=0; (x|0)<(size|0); x=x+1|0) {images[imagePtr+y|0]=0;y=y+1|0;}}function skeletonize() {var subImagePtr=0,erodedImagePtr=0,tempImagePtr=0,skelImagePtr=0,sum=0,done=0;erodedImagePtr=imul(size, size)|0;tempImagePtr=erodedImagePtr+erodedImagePtr|0;skelImagePtr=tempImagePtr+erodedImagePtr|0;init(skelImagePtr, 0);zeroBorder(subImagePtr);do {erode(subImagePtr, erodedImagePtr);dilate(erodedImagePtr, tempImagePtr);subtract(subImagePtr, tempImagePtr, tempImagePtr);bitwiseOr(skelImagePtr, tempImagePtr, skelImagePtr);memcpy(erodedImagePtr, 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t.drawBoundingBox&&d&&u["default"].drawPath(e,{x:0,y:1},d,{color:"blue",lineWidth:2}),n=c(e),a=s(n),r=Math.atan2(n[1].y-n[0].y,n[1].x-n[0].x),n=i(n,r,Math.floor(.1*a)),null===n?null:(o=f(n),null===o&&(o=l(e,n,r)),null===o?null:(o&&t.drawScanline&&d&&u["default"].drawPath(n,{x:"x",y:"y"},d,{color:"red",lineWidth:3}),{codeResult:o.codeResult,line:n,angle:r,pattern:o.barcodeLine.line,threshold:o.barcodeLine.threshold}))}var h={ctx:{frequency:null,pattern:null,overlay:null},dom:{frequency:null,pattern:null,overlay:null}},p=[];return n(),r(),o(),{decodeFromBoundingBox:function(t){return d(t)},decodeFromBoundingBoxes:function(t){var e,n;for(e=0;es?s:M,b=s>b?s:b,m.push(s)}var o,a,i,u,c,f,l,s,d=0|e.x,h=0|e.y,p=0|n.x,v=0|n.y,g=Math.abs(v-h)>Math.abs(p-d),m=[],y=t.data,_=t.size.x,x=0,M=255,b=0;for(g&&(f=d,d=h,h=f,f=p,p=v,v=f),d>p&&(f=d,d=p,p=f,f=h,h=v,v=f),o=p-d,a=Math.abs(v-h),i=o/2|0,c=h,u=v>h?1:-1,l=d;p>l;l++)g?r(c,l):r(l,c),i-=a,0>i&&(c+=u,i+=o);return{line:m,min:M,max:b}},c.toOtsuBinaryLine=function(t){var e=t.line,n=new u["default"]({x:e.length-1,y:1},e),r=a["default"].determineOtsuThreshold(n,5);return e=a["default"].sharpenLine(e),a["default"].thresholdImage(n,r),{line:e,threshold:r}},c.toBinaryLine=function(t){var e,n,r,o,a,i,u=t.min,c=t.max,l=t.line,s=u+(c-u)/2,d=[],h=(c-u)/12,p=-h;for(r=l[0]>s?f.DIR.UP:f.DIR.DOWN,d.push({pos:0,val:l[0]}),a=0;ae+n&&l[a+1]<1.5*s?f.DIR.DOWN:e+n>h&&l[a+1]>.5*s?f.DIR.UP:r,r!==o&&(d.push({pos:a,val:l[a]}),r=o);for(d.push({pos:l.length,val:l[l.length-1]}),i=d[0].pos;is?0:1;for(a=1;ad[a].val?d[a].val+(d[a+1].val-d[a].val)/3*2|0:d[a+1].val+(d[a].val-d[a+1].val)/3|0,i=d[a].pos;ih?0:1;return{line:l,threshold:h}},c.debug={printFrequency:function(t,e){var n,r=e.getContext("2d");for(e.width=t.length,e.height=256,r.beginPath(),r.strokeStyle="blue",n=0;nr;r++)i[r]=i[r+2];i[4]=0,i[5]=0,l--}else l++;i[l]=1,f=!f}return null},o.prototype._decode=function(){var t,e,n=this,r=n._findStart(),o=null,a=!1,i=[],u=0,c=0,f=[],l=[],s=!1;if(null===r)return null;switch(o={code:r.code,start:r.start,end:r.end},l.push(o),c=o.code,o.code){case n.START_CODE_A:t=n.CODE_A;break;case n.START_CODE_B:t=n.CODE_B;break;case n.START_CODE_C:t=n.CODE_C;break;default:return null}for(;!a;){if(e=s,s=!1,o=n._decodeCode(o.end),null!==o)switch(o.code!==n.STOP_CODE&&(f.push(o.code),u++,c+=u*o.code),l.push(o),t){case n.CODE_A:if(o.code<64)i.push(String.fromCharCode(32+o.code));else if(o.code<96)i.push(String.fromCharCode(o.code-64));else switch(o.code){case n.CODE_SHIFT:s=!0,t=n.CODE_B;break;case n.CODE_B:t=n.CODE_B;break;case n.CODE_C:t=n.CODE_C;break;case n.STOP_CODE:a=!0}break;case n.CODE_B:if(o.code<96)i.push(String.fromCharCode(32+o.code));else switch(o.code){case n.CODE_SHIFT:s=!0,t=n.CODE_A;break;case n.CODE_A:t=n.CODE_A;break;case n.CODE_C:t=n.CODE_C;break;case n.STOP_CODE:a=!0}break;case n.CODE_C:switch(o.code<100&&i.push(o.code<10?"0"+o.code:o.code),o.code){case n.CODE_A:t=n.CODE_A;break;case n.CODE_B:t=n.CODE_B;break;case n.STOP_CODE:a=!0}}else a=!0;e&&(t=t===n.CODE_A?n.CODE_B:n.CODE_A)}return null===o?null:(o.end=n._nextUnset(n._row,o.end),n._verifyTrailingWhitespace(o)?(c-=u*f[f.length-1],c%103!==f[f.length-1]?null:i.length?(i.splice(i.length-1,1),{code:i.join(""),start:r.start,end:o.end,codeset:t,startInfo:r,decodedCodes:l,endInfo:o}):null):null)},i["default"].prototype._verifyTrailingWhitespace=function(t){var e,n=this;return e=t.end+(t.end-t.start)/2,ei)return Number.MAX_VALUE;r+=o}return r/a},n.prototype._nextSet=function(t,e){var n;for(e=e||0,n=e;n1)for(n=0;nr?(f.start=n-i,f.end=n,f.counter=o,f):null;c++,o[c]=1,u=!u}}else for(o.push(0),n=i;nt?0:t,r=t;e>r;r++)if(this._row[r]!==n)return!1;return!0},n.prototype._fillCounters=function(t,e,n){var r,o=this,a=0,i=[];for(n="undefined"!=typeof n?n:!0,t="undefined"!=typeof t?t:o._nextUnset(o._row),e=e||o._row.length,i[a]=0,r=t;e>r;r++)o._row[r]^n?i[a]++:(a++,i[a]=1,n=!n);return i},Object.defineProperty(n.prototype,"FORMAT",{value:"unknown",writeable:!1}),n.DIRECTION={FORWARD:1,REVERSE:-1},n.Exception={StartNotFoundException:"Start-Info was not found!",CodeNotFoundException:"Code could not be found!",PatternNotFoundException:"Pattern could not be found!"},n.CONFIG_KEYS={},e["default"]=n,t.exports=e["default"]},function(t,e,n){"use strict";function r(t){return t&&t.__esModule?t:{"default":t}}function o(t){i["default"].call(this,t)}Object.defineProperty(e,"__esModule",{value:!0});var a=n(28),i=r(a),u={CODE_L_START:{value:0},MODULO:{value:7},CODE_G_START:{value:10},START_PATTERN:{value:[1/3*7,1/3*7,1/3*7]},STOP_PATTERN:{value:[1/3*7,1/3*7,1/3*7]},MIDDLE_PATTERN:{value:[.2*7,.2*7,.2*7,.2*7,.2*7]},CODE_PATTERN:{value:[[3,2,1,1],[2,2,2,1],[2,1,2,2],[1,4,1,1],[1,1,3,2],[1,2,3,1],[1,1,1,4],[1,3,1,2],[1,2,1,3],[3,1,1,2],[1,1,2,3],[1,2,2,2],[2,2,1,2],[1,1,4,1],[2,3,1,1],[1,3,2,1],[4,1,1,1],[2,1,3,1],[3,1,2,1],[2,1,1,3]]},CODE_FREQUENCY:{value:[0,11,13,14,19,25,28,21,22,26]},SINGLE_CODE_ERROR:{value:.67},AVG_CODE_ERROR:{value:.27},FORMAT:{value:"ean_13",writeable:!1}};o.prototype=Object.create(i["default"].prototype,u),o.prototype.constructor=o,o.prototype._decodeCode=function(t,e){var n,r,o,a,i=[0,0,0,0],u=this,c=t,f=!u._row[c],l=0,s={error:Number.MAX_VALUE,code:-1,start:t,end:t};for(e||(e=u.CODE_PATTERN.length),n=c;nr;r++)o=u._matchPattern(a,u.CODE_PATTERN[r]),ou.AVG_CODE_ERROR?null:s}}else l++;i[l]=1,f=!f}return null},o.prototype._findPattern=function(t,e,n,r,o){var a,i,u,c,f,l=[],s=this,d=0,h={error:Number.MAX_VALUE,code:-1,start:0,end:0};for(e||(e=s._nextSet(s._row)),void 0===n&&(n=!1),void 0===r&&(r=!0),void 0===o&&(o=s.AVG_CODE_ERROR),a=0;ai))return h.error=i,h.start=a-c,h.end=a,h;if(!r)return null;for(u=0;u=0&&n._matchRange(t,e.start,0))return e;r=e.end,e=null}},o.prototype._verifyTrailingWhitespace=function(t){var e,n=this;return e=t.end+(t.end-t.start),er;r++){if(t=a._decodeCode(t.end),!t)return null;t.code>=a.CODE_G_START?(t.code=t.code-a.CODE_G_START,i|=1<<5-r):i|=0<<5-r,e.push(t.code),n.push(t)}if(o=a._calculateFirstDigit(i),null===o)return null;if(e.unshift(o),t=a._findPattern(a.MIDDLE_PATTERN,t.end,!0,!1),null===t)return null;for(n.push(t),r=0;6>r;r++){if(t=a._decodeCode(t.end,a.CODE_G_START),!t)return null;n.push(t),e.push(t.code)}return t},o.prototype._decode=function(){var t,e,n=this,r=[],o=[];return(t=n._findStart())?(e={code:t.code,start:t.start,end:t.end},o.push(e),(e=n._decodePayload(e,r,o))&&(e=n._findEnd(e.end,!1))?(o.push(e),n._checksum(r)?{code:r.join(""),start:t.start,end:e.end,codeset:"",startInfo:t,decodedCodes:o}:null):null):null},o.prototype._checksum=function(t){var e,n=0;for(e=t.length-2;e>=0;e-=2)n+=t[e];for(n*=3,e=t.length-1;e>=0;e-=2)n+=t[e];return n%10===0},e["default"]=o,t.exports=e["default"]},function(t,e,n){"use strict";function r(t){return t&&t.__esModule?t:{"default":t}}function o(){i["default"].call(this)}Object.defineProperty(e,"__esModule",{value:!0});var a=n(28),i=r(a),u=n(19),c=r(u),f={ALPHABETH_STRING:{value:"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ-. *$/+%"},ALPHABET:{value:[48,49,50,51,52,53,54,55,56,57,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,45,46,32,42,36,47,43,37]},CHARACTER_ENCODINGS:{value:[52,289,97,352,49,304,112,37,292,100,265,73,328,25,280,88,13,268,76,28,259,67,322,19,274,82,7,262,70,22,385,193,448,145,400,208,133,388,196,148,168,162,138,42]},ASTERISK:{value:148},FORMAT:{value:"code_39",writeable:!1}};o.prototype=Object.create(i["default"].prototype,f),o.prototype.constructor=o,o.prototype._toCounters=function(t,e){var n,r=this,o=e.length,a=r._row.length,i=!r._row[t],u=0;for(c["default"].init(e,0),n=t;a>n;n++)if(r._row[n]^i)e[u]++;else{if(u++,u===o)break;e[u]=1,i=!i}return e},o.prototype._decode=function(){var t,e,n,r,o=this,a=[0,0,0,0,0,0,0,0,0],i=[],u=o._findStart();if(!u)return null;r=o._nextSet(o._row,u.end);do{if(a=o._toCounters(r,a),n=o._toPattern(a),0>n)return null;if(t=o._patternToChar(n),0>t)return null;i.push(t),e=r,r+=c["default"].sum(a),r=o._nextSet(o._row,r)}while("*"!==t);return i.pop(),i.length&&o._verifyTrailingWhitespace(e,r,a)?{code:i.join(""),start:u.start,end:r,startInfo:u,decodedCodes:i}:null},o.prototype._verifyTrailingWhitespace=function(t,e,n){var r,o=c["default"].sum(n);return r=e-t-o,3*r>=o?!0:!1},o.prototype._patternToChar=function(t){var e,n=this;for(e=0;ee&&(r=t[n]);return r},o.prototype._toPattern=function(t){for(var e,n,r=t.length,o=0,a=r,i=0,u=this;a>3;){for(o=u._findNextWidth(t,o),a=0,e=0,n=0;r>n;n++)t[n]>o&&(e|=1<n&&a>0;n++)if(t[n]>o&&(a--,2*t[n]>=i))return-1;return e}}return-1},o.prototype._findStart=function(){var t,e,n,r=this,o=r._nextSet(r._row),a=o,i=[0,0,0,0,0,0,0,0,0],u=0,c=!1;for(t=o;te;e++)i[e]=i[e+2];i[7]=0,i[8]=0,u--}else u++;i[u]=1,c=!c}return null},e["default"]=o,t.exports=e["default"]},function(t,e,n){"use strict";function r(t){return t&&t.__esModule?t:{"default":t}}function o(){i["default"].call(this)}Object.defineProperty(e,"__esModule",{value:!0});var a=n(30),i=r(a),u={IOQ:/[IOQ]/g,AZ09:/[A-Z0-9]{17}/};o.prototype=Object.create(i["default"].prototype),o.prototype.constructor=o,o.prototype._decode=function(){var t=i["default"].prototype._decode.apply(this);if(!t)return null;var e=t.code;return e?(e=e.replace(u.IOQ,""),e.match(u.AZ09)?this._checkChecksum(e)?(t.code=e,t):null:(console.log("Failed AZ09 pattern code:",e),null)):null},o.prototype._checkChecksum=function(t){return!!t},e["default"]=o,t.exports=e["default"]},function(t,e,n){"use strict";function r(t){return t&&t.__esModule?t:{"default":t}}function o(){i["default"].call(this),this._counters=[]}Object.defineProperty(e,"__esModule",{value:!0});var a=n(28),i=r(a),u={ALPHABETH_STRING:{value:"0123456789-$:/.+ABCD"},ALPHABET:{value:[48,49,50,51,52,53,54,55,56,57,45,36,58,47,46,43,65,66,67,68]},CHARACTER_ENCODINGS:{value:[3,6,9,96,18,66,33,36,48,72,12,24,69,81,84,21,26,41,11,14]},START_END:{value:[26,41,11,14]},MIN_ENCODED_CHARS:{value:4},MAX_ACCEPTABLE:{value:2},PADDING:{value:1.5},FORMAT:{value:"codabar",writeable:!1}};o.prototype=Object.create(i["default"].prototype,u),o.prototype.constructor=o,o.prototype._decode=function(){var t,e,n,r,o,a=this,i=[];if(this._counters=a._fillCounters(),t=a._findStart(),!t)return null;r=t.startCounter;do{if(n=a._toPattern(r),0>n)return null;if(e=a._patternToChar(n),0>e)return null;if(i.push(e),r+=8,i.length>1&&a._isStartEnd(n))break}while(ra._counters.length?a._counters.length:r,o=t.start+a._sumCounters(t.startCounter,r-8),{code:i.join(""),start:t.start,end:o,startInfo:t,decodedCodes:i}):null},o.prototype._verifyWhitespace=function(t,e){return(0>=t-1||this._counters[t-1]>=this._calculatePatternLength(t)/2)&&(e+8>=this._counters.length||this._counters[e+7]>=this._calculatePatternLength(e)/2)?!0:!1},o.prototype._calculatePatternLength=function(t){var e,n=0;for(e=t;t+7>e;e++)n+=this._counters[e];return n},o.prototype._thresholdResultPattern=function(t,e){var n,r,o,a,i,u=this,c={space:{narrow:{size:0,counts:0,min:0,max:Number.MAX_VALUE},wide:{size:0,counts:0,min:0,max:Number.MAX_VALUE}},bar:{narrow:{size:0,counts:0,min:0,max:Number.MAX_VALUE},wide:{size:0,counts:0,min:0,max:Number.MAX_VALUE}}},f=e;for(o=0;o=0;a--)n=2===(1&a)?c.bar:c.space,r=1===(1&i)?n.wide:n.narrow,r.size+=u._counters[f+a],r.counts++,i>>=1;f+=8}return["space","bar"].forEach(function(t){var e=c[t];e.wide.min=Math.floor((e.narrow.size/e.narrow.counts+e.wide.size/e.wide.counts)/2),e.narrow.max=Math.ceil(e.wide.min),e.wide.max=Math.ceil((e.wide.size*u.MAX_ACCEPTABLE+u.PADDING)/e.wide.counts)}),c},o.prototype._charToPattern=function(t){var e,n=this,r=t.charCodeAt(0);for(e=0;e=0;r--){if(o=0===(1&r)?f.bar:f.space,a=1===(1&u)?o.wide:o.narrow,i=c._counters[l+r],ia.max)return!1;u>>=1}l+=8}return!0},o.prototype._patternToChar=function(t){var e,n=this;for(e=0;en;n+=2)r=this._counters[n],r>a&&(a=r),o>r&&(o=r);return(o+a)/2|0},o.prototype._toPattern=function(t){var e,n,r,o,a=7,i=t+a,u=1<this._counters.length)return-1;for(e=this._computeAlternatingThreshold(t,i),n=this._computeAlternatingThreshold(t+1,i),r=0;a>r;r++)o=0===(1&r)?e:n,this._counters[t+r]>o&&(c|=u),u>>=1;return c},o.prototype._isStartEnd=function(t){var e;for(e=0;en;n++)r+=this._counters[n];return r},o.prototype._findStart=function(){var t,e,n,r=this,o=r._nextUnset(r._row);for(t=1;tr;r++){if(t=o._decodeCode(t.end,o.CODE_G_START),!t)return null;e.push(t.code),n.push(t)}if(t=o._findPattern(o.MIDDLE_PATTERN,t.end,!0,!1),null===t)return null;for(n.push(t),r=0;4>r;r++){if(t=o._decodeCode(t.end,o.CODE_G_START),!t)return null;n.push(t),e.push(t.code)}return t},e["default"]=o,t.exports=e["default"]},function(t,e,n){"use strict";function r(t){return t&&t.__esModule?t:{"default":t}}function o(){i["default"].call(this)}Object.defineProperty(e,"__esModule",{value:!0});var a=n(29),i=r(a),u={CODE_FREQUENCY:{value:[[56,52,50,49,44,38,35,42,41,37],[7,11,13,14,19,25,28,21,22,26]]},STOP_PATTERN:{value:[1/6*7,1/6*7,1/6*7,1/6*7,1/6*7,1/6*7]},FORMAT:{value:"upc_e",writeable:!1}};o.prototype=Object.create(i["default"].prototype,u),o.prototype.constructor=o,o.prototype._decodePayload=function(t,e,n){var r,o=this,a=0;for(r=0;6>r;r++){if(t=o._decodeCode(t.end),!t)return 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t[0]=e[0],t[1]=e[1],t[2]=e[2],t[3]=e[3],t[4]=e[4],t[5]=e[5],t[6]=e[6],t[7]=e[7],t[8]=e[8],t[9]=e[9],t[10]=e[10],t[11]=e[11],t[12]=e[12],t[13]=e[13],t[14]=e[14],t[15]=e[15],t},o.identity=function(t){return t[0]=1,t[1]=0,t[2]=0,t[3]=0,t[4]=0,t[5]=1,t[6]=0,t[7]=0,t[8]=0,t[9]=0,t[10]=1,t[11]=0,t[12]=0,t[13]=0,t[14]=0,t[15]=1,t},o.transpose=function(t,e){if(t===e){var n=e[1],r=e[2],o=e[3],a=e[6],i=e[7],u=e[11];t[1]=e[4],t[2]=e[8],t[3]=e[12],t[4]=n,t[6]=e[9],t[7]=e[13],t[8]=r,t[9]=a,t[11]=e[14],t[12]=o,t[13]=i,t[14]=u}else t[0]=e[0],t[1]=e[4],t[2]=e[8],t[3]=e[12],t[4]=e[1],t[5]=e[5],t[6]=e[9],t[7]=e[13],t[8]=e[2],t[9]=e[6],t[10]=e[10],t[11]=e[14],t[12]=e[3],t[13]=e[7],t[14]=e[11],t[15]=e[15];return t},o.invert=function(t,e){var n=e[0],r=e[1],o=e[2],a=e[3],i=e[4],u=e[5],c=e[6],f=e[7],l=e[8],s=e[9],d=e[10],h=e[11],p=e[12],v=e[13],g=e[14],m=e[15],y=n*u-r*i,_=n*c-o*i,x=n*f-a*i,M=r*c-o*u,b=r*f-a*u,w=o*f-a*c,R=l*v-s*p,A=l*g-d*p,E=l*m-h*p,C=s*g-d*v,O=s*m-h*v,T=d*m-h*g,D=y*T-_*O+x*C+M*E-b*A+w*R;return D?(D=1/D,t[0]=(u*T-c*O+f*C)*D,t[1]=(o*O-r*T-a*C)*D,t[2]=(v*w-g*b+m*M)*D,t[3]=(d*b-s*w-h*M)*D,t[4]=(c*E-i*T-f*A)*D,t[5]=(n*T-o*E+a*A)*D,t[6]=(g*x-p*w-m*_)*D,t[7]=(l*w-d*x+h*_)*D,t[8]=(i*O-u*E+f*R)*D,t[9]=(r*E-n*O-a*R)*D,t[10]=(p*b-v*x+m*y)*D,t[11]=(s*x-l*b-h*y)*D,t[12]=(u*A-i*C-c*R)*D,t[13]=(n*C-r*A+o*R)*D,t[14]=(v*_-p*M-g*y)*D,t[15]=(l*M-s*_+d*y)*D,t):null},o.adjoint=function(t,e){var n=e[0],r=e[1],o=e[2],a=e[3],i=e[4],u=e[5],c=e[6],f=e[7],l=e[8],s=e[9],d=e[10],h=e[11],p=e[12],v=e[13],g=e[14],m=e[15];return t[0]=u*(d*m-h*g)-s*(c*m-f*g)+v*(c*h-f*d),t[1]=-(r*(d*m-h*g)-s*(o*m-a*g)+v*(o*h-a*d)),t[2]=r*(c*m-f*g)-u*(o*m-a*g)+v*(o*f-a*c),t[3]=-(r*(c*h-f*d)-u*(o*h-a*d)+s*(o*f-a*c)),t[4]=-(i*(d*m-h*g)-l*(c*m-f*g)+p*(c*h-f*d)),t[5]=n*(d*m-h*g)-l*(o*m-a*g)+p*(o*h-a*d),t[6]=-(n*(c*m-f*g)-i*(o*m-a*g)+p*(o*f-a*c)),t[7]=n*(c*h-f*d)-i*(o*h-a*d)+l*(o*f-a*c),t[8]=i*(s*m-h*v)-l*(u*m-f*v)+p*(u*h-f*s),t[9]=-(n*(s*m-h*v)-l*(r*m-a*v)+p*(r*h-a*s)),t[10]=n*(u*m-f*v)-i*(r*m-a*v)+p*(r*f-a*u),t[11]=-(n*(u*h-f*s)-i*(r*h-a*s)+l*(r*f-a*u)),t[12]=-(i*(s*g-d*v)-l*(u*g-c*v)+p*(u*d-c*s)),t[13]=n*(s*g-d*v)-l*(r*g-o*v)+p*(r*d-o*s),t[14]=-(n*(u*g-c*v)-i*(r*g-o*v)+p*(r*c-o*u)),t[15]=n*(u*d-c*s)-i*(r*d-o*s)+l*(r*c-o*u),t},o.determinant=function(t){var e=t[0],n=t[1],r=t[2],o=t[3],a=t[4],i=t[5],u=t[6],c=t[7],f=t[8],l=t[9],s=t[10],d=t[11],h=t[12],p=t[13],v=t[14],g=t[15],m=e*i-n*a,y=e*u-r*a,_=e*c-o*a,x=n*u-r*i,M=n*c-o*i,b=r*c-o*u,w=f*p-l*h,R=f*v-s*h,A=f*g-d*h,E=l*v-s*p,C=l*g-d*p,O=s*g-d*v;return m*O-y*C+_*E+x*A-M*R+b*w},o.multiply=function(t,e,n){var r=e[0],o=e[1],a=e[2],i=e[3],u=e[4],c=e[5],f=e[6],l=e[7],s=e[8],d=e[9],h=e[10],p=e[11],v=e[12],g=e[13],m=e[14],y=e[15],_=n[0],x=n[1],M=n[2],b=n[3];return t[0]=_*r+x*u+M*s+b*v,t[1]=_*o+x*c+M*d+b*g,t[2]=_*a+x*f+M*h+b*m,t[3]=_*i+x*l+M*p+b*y,_=n[4],x=n[5],M=n[6],b=n[7],t[4]=_*r+x*u+M*s+b*v,t[5]=_*o+x*c+M*d+b*g,t[6]=_*a+x*f+M*h+b*m,t[7]=_*i+x*l+M*p+b*y,_=n[8],x=n[9],M=n[10],b=n[11],t[8]=_*r+x*u+M*s+b*v,t[9]=_*o+x*c+M*d+b*g,t[10]=_*a+x*f+M*h+b*m,t[11]=_*i+x*l+M*p+b*y,_=n[12],x=n[13],M=n[14],b=n[15],t[12]=_*r+x*u+M*s+b*v,t[13]=_*o+x*c+M*d+b*g,t[14]=_*a+x*f+M*h+b*m,t[15]=_*i+x*l+M*p+b*y,t},o.mul=o.multiply,o.translate=function(t,e,n){var r,o,a,i,u,c,f,l,s,d,h,p,v=n[0],g=n[1],m=n[2];return e===t?(t[12]=e[0]*v+e[4]*g+e[8]*m+e[12],t[13]=e[1]*v+e[5]*g+e[9]*m+e[13],t[14]=e[2]*v+e[6]*g+e[10]*m+e[14],t[15]=e[3]*v+e[7]*g+e[11]*m+e[15]):(r=e[0],o=e[1],a=e[2],i=e[3],u=e[4],c=e[5],f=e[6],l=e[7],s=e[8],d=e[9],h=e[10],p=e[11],t[0]=r,t[1]=o,t[2]=a,t[3]=i,t[4]=u,t[5]=c,t[6]=f,t[7]=l,t[8]=s,t[9]=d,t[10]=h,t[11]=p,t[12]=r*v+u*g+s*m+e[12],t[13]=o*v+c*g+d*m+e[13],t[14]=a*v+f*g+h*m+e[14],t[15]=i*v+l*g+p*m+e[15]),t},o.scale=function(t,e,n){var r=n[0],o=n[1],a=n[2];return t[0]=e[0]*r,t[1]=e[1]*r,t[2]=e[2]*r,t[3]=e[3]*r,t[4]=e[4]*o,t[5]=e[5]*o,t[6]=e[6]*o,t[7]=e[7]*o,t[8]=e[8]*a,t[9]=e[9]*a,t[10]=e[10]*a, +t[11]=e[11]*a,t[12]=e[12],t[13]=e[13],t[14]=e[14],t[15]=e[15],t},o.rotate=function(t,e,n,o){var a,i,u,c,f,l,s,d,h,p,v,g,m,y,_,x,M,b,w,R,A,E,C,O,T=o[0],D=o[1],S=o[2],P=Math.sqrt(T*T+D*D+S*S);return Math.abs(P)c?(a.cross(t,e,o),a.length(t)<1e-6&&a.cross(t,n,o),a.normalize(t,t),u.setAxisAngle(r,t,Math.PI),r):c>.999999?(r[0]=0,r[1]=0,r[2]=0,r[3]=1,r):(a.cross(t,o,i),r[0]=t[0],r[1]=t[1],r[2]=t[2],r[3]=1+c,u.normalize(r,r))}}(),u.setAxes=function(){var t=o.create();return function(e,n,r,o){return t[0]=r[0],t[3]=r[1],t[6]=r[2],t[1]=o[0],t[4]=o[1],t[7]=o[2],t[2]=-n[0],t[5]=-n[1],t[8]=-n[2],u.normalize(e,u.fromMat3(e,t))}}(),u.clone=i.clone,u.fromValues=i.fromValues,u.copy=i.copy,u.set=i.set,u.identity=function(t){return t[0]=0,t[1]=0,t[2]=0,t[3]=1,t},u.setAxisAngle=function(t,e,n){n=.5*n;var r=Math.sin(n);return t[0]=r*e[0],t[1]=r*e[1],t[2]=r*e[2],t[3]=Math.cos(n),t},u.add=i.add,u.multiply=function(t,e,n){var r=e[0],o=e[1],a=e[2],i=e[3],u=n[0],c=n[1],f=n[2],l=n[3];return t[0]=r*l+i*u+o*f-a*c,t[1]=o*l+i*c+a*u-r*f,t[2]=a*l+i*f+r*c-o*u,t[3]=i*l-r*u-o*c-a*f,t},u.mul=u.multiply,u.scale=i.scale,u.rotateX=function(t,e,n){n*=.5;var r=e[0],o=e[1],a=e[2],i=e[3],u=Math.sin(n),c=Math.cos(n);return t[0]=r*c+i*u,t[1]=o*c+a*u,t[2]=a*c-o*u,t[3]=i*c-r*u,t},u.rotateY=function(t,e,n){n*=.5;var r=e[0],o=e[1],a=e[2],i=e[3],u=Math.sin(n),c=Math.cos(n);return t[0]=r*c-a*u,t[1]=o*c+i*u,t[2]=a*c+r*u,t[3]=i*c-o*u,t},u.rotateZ=function(t,e,n){n*=.5;var r=e[0],o=e[1],a=e[2],i=e[3],u=Math.sin(n),c=Math.cos(n);return t[0]=r*c+o*u,t[1]=o*c-r*u,t[2]=a*c+i*u,t[3]=i*c-a*u,t},u.calculateW=function(t,e){var n=e[0],r=e[1],o=e[2];return t[0]=n,t[1]=r,t[2]=o,t[3]=Math.sqrt(Math.abs(1-n*n-r*r-o*o)),t},u.dot=i.dot,u.lerp=i.lerp,u.slerp=function(t,e,n,r){var o,a,i,u,c,f=e[0],l=e[1],s=e[2],d=e[3],h=n[0],p=n[1],v=n[2],g=n[3];return a=f*h+l*p+s*v+d*g,0>a&&(a=-a,h=-h,p=-p,v=-v,g=-g),1-a>1e-6?(o=Math.acos(a),i=Math.sin(o),u=Math.sin((1-r)*o)/i,c=Math.sin(r*o)/i):(u=1-r,c=r),t[0]=u*f+c*h,t[1]=u*l+c*p,t[2]=u*s+c*v,t[3]=u*d+c*g,t},u.sqlerp=function(){var t=u.create(),e=u.create();return function(n,r,o,a,i,c){return u.slerp(t,r,i,c),u.slerp(e,o,a,c),u.slerp(n,t,e,2*c*(1-c)),n}}(),u.invert=function(t,e){var n=e[0],r=e[1],o=e[2],a=e[3],i=n*n+r*r+o*o+a*a,u=i?1/i:0;return t[0]=-n*u,t[1]=-r*u,t[2]=-o*u,t[3]=a*u,t},u.conjugate=function(t,e){return t[0]=-e[0],t[1]=-e[1],t[2]=-e[2],t[3]=e[3],t},u.length=i.length,u.len=u.length,u.squaredLength=i.squaredLength,u.sqrLen=u.squaredLength,u.normalize=i.normalize,u.fromMat3=function(t,e){var n,r=e[0]+e[4]+e[8];if(r>0)n=Math.sqrt(r+1),t[3]=.5*n,n=.5/n,t[0]=(e[5]-e[7])*n,t[1]=(e[6]-e[2])*n,t[2]=(e[1]-e[3])*n;else{var o=0;e[4]>e[0]&&(o=1),e[8]>e[3*o+o]&&(o=2);var a=(o+1)%3,i=(o+2)%3;n=Math.sqrt(e[3*o+o]-e[3*a+a]-e[3*i+i]+1),t[o]=.5*n,n=.5/n,t[3]=(e[3*a+i]-e[3*i+a])*n,t[a]=(e[3*a+o]+e[3*o+a])*n,t[i]=(e[3*i+o]+e[3*o+i])*n}return t},u.str=function(t){return"quat("+t[0]+", "+t[1]+", "+t[2]+", "+t[3]+")"},t.exports=u},function(t,e,n){var r=n(8),o={};o.create=function(){var t=new r.ARRAY_TYPE(3);return t[0]=0,t[1]=0,t[2]=0,t},o.clone=function(t){var e=new r.ARRAY_TYPE(3);return e[0]=t[0],e[1]=t[1],e[2]=t[2],e},o.fromValues=function(t,e,n){var o=new 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1|0;xStart2=u+1|0;sum=(images[inImagePtr+yStart1+xStart1|0]|0)+(images[inImagePtr+yStart1+xStart2|0]|0)+(images[inImagePtr+offset+u|0]|0)+(images[inImagePtr+yStart2+xStart1|0]|0)+(images[inImagePtr+yStart2+xStart2|0]|0)|0;if ((sum|0) == (5|0)) {images[outImagePtr+offset+u|0]=1;} else {images[outImagePtr+offset+u|0]=0;}}}return;}function subtract(aImagePtr, bImagePtr, outImagePtr) {aImagePtr=aImagePtr|0;bImagePtr=bImagePtr|0;outImagePtr=outImagePtr|0;var length=0;length=imul(size, size)|0;while ((length|0)>0) {length=length - 1|0;images[outImagePtr+length|0]=(images[aImagePtr+length|0]|0) - (images[bImagePtr+length|0]|0)|0;}}function bitwiseOr(aImagePtr, bImagePtr, outImagePtr) {aImagePtr=aImagePtr|0;bImagePtr=bImagePtr|0;outImagePtr=outImagePtr|0;var length=0;length=imul(size, size)|0;while ((length|0)>0) {length=length - 1|0;images[outImagePtr+length|0]=images[aImagePtr+length|0]|0|(images[bImagePtr+length|0]|0)|0;}}function countNonZero(imagePtr) {imagePtr=imagePtr|0;var sum=0,length=0;length=imul(size, size)|0;while ((length|0)>0) {length=length - 1|0;sum=(sum|0)+(images[imagePtr+length|0]|0)|0;}return sum|0;}function init(imagePtr, value) {imagePtr=imagePtr|0;value=value|0;var length=0;length=imul(size, size)|0;while ((length|0)>0) {length=length - 1|0;images[imagePtr+length|0]=value;}}function dilate(inImagePtr, outImagePtr) {inImagePtr=inImagePtr|0;outImagePtr=outImagePtr|0;var v=0,u=0,sum=0,yStart1=0,yStart2=0,xStart1=0,xStart2=0,offset=0;for (v=1; (v|0)<(size - 1|0); v=v+1|0) {offset=offset+size|0;for (u=1; (u|0)<(size - 1|0); u=u+1|0) {yStart1=offset - size|0;yStart2=offset+size|0;xStart1=u - 1|0;xStart2=u+1|0;sum=(images[inImagePtr+yStart1+xStart1|0]|0)+(images[inImagePtr+yStart1+xStart2|0]|0)+(images[inImagePtr+offset+u|0]|0)+(images[inImagePtr+yStart2+xStart1|0]|0)+(images[inImagePtr+yStart2+xStart2|0]|0)|0;if ((sum|0)>(0|0)) {images[outImagePtr+offset+u|0]=1;} else {images[outImagePtr+offset+u|0]=0;}}}return;}function memcpy(srcImagePtr, dstImagePtr) {srcImagePtr=srcImagePtr|0;dstImagePtr=dstImagePtr|0;var length=0;length=imul(size, size)|0;while ((length|0)>0) {length=length - 1|0;images[dstImagePtr+length|0]=images[srcImagePtr+length|0]|0;}}function zeroBorder(imagePtr) {imagePtr=imagePtr|0;var x=0,y=0;for (x=0; (x|0)<(size - 1|0); x=x+1|0) {images[imagePtr+x|0]=0;images[imagePtr+y|0]=0;y=y+size - 1|0;images[imagePtr+y|0]=0;y=y+1|0;}for (x=0; (x|0)<(size|0); x=x+1|0) {images[imagePtr+y|0]=0;y=y+1|0;}}function skeletonize() {var subImagePtr=0,erodedImagePtr=0,tempImagePtr=0,skelImagePtr=0,sum=0,done=0;erodedImagePtr=imul(size, size)|0;tempImagePtr=erodedImagePtr+erodedImagePtr|0;skelImagePtr=tempImagePtr+erodedImagePtr|0;init(skelImagePtr, 0);zeroBorder(subImagePtr);do {erode(subImagePtr, erodedImagePtr);dilate(erodedImagePtr, tempImagePtr);subtract(subImagePtr, tempImagePtr, tempImagePtr);bitwiseOr(skelImagePtr, tempImagePtr, skelImagePtr);memcpy(erodedImagePtr, subImagePtr);sum=countNonZero(subImagePtr)|0;done=(sum|0) == 0|0;} while (!done);}return {skeletonize: skeletonize};}exports["default"]=Skeletonizer;module.exports=exports["default"]; },function(t,e){"use strict";Object.defineProperty(e,"__esModule",{value:!0}),e["default"]={drawRect:function(t,e,n,r){n.strokeStyle=r.color,n.fillStyle=r.color,n.lineWidth=1,n.beginPath(),n.strokeRect(t.x,t.y,e.x,e.y)},drawPath:function(t,e,n,r){n.strokeStyle=r.color,n.fillStyle=r.color,n.lineWidth=r.lineWidth,n.beginPath(),n.moveTo(t[0][e.x],t[0][e.y]);for(var o=1;o1&&(!e.inImageWithBorder(t[0],0)||!e.inImageWithBorder(t[1],0));)r-=Math.ceil(r/2),o(-r);return t}function c(t){return[{x:(t[1][0]-t[0][0])/2+t[0][0],y:(t[1][1]-t[0][1])/2+t[0][1]},{x:(t[3][0]-t[2][0])/2+t[2][0],y:(t[3][1]-t[2][1])/2+t[2][1]}]}function f(n){var 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e,n,r,o,a,i,u=t.min,c=t.max,l=t.line,s=u+(c-u)/2,d=[],h=(c-u)/12,p=-h;for(r=l[0]>s?f.DIR.UP:f.DIR.DOWN,d.push({pos:0,val:l[0]}),a=0;ae+n&&l[a+1]<1.5*s?f.DIR.DOWN:e+n>h&&l[a+1]>.5*s?f.DIR.UP:r,r!==o&&(d.push({pos:a,val:l[a]}),r=o);for(d.push({pos:l.length,val:l[l.length-1]}),i=d[0].pos;is?0:1;for(a=1;ad[a].val?d[a].val+(d[a+1].val-d[a].val)/3*2|0:d[a+1].val+(d[a].val-d[a+1].val)/3|0,i=d[a].pos;ih?0:1;return{line:l,threshold:h}},c.debug={printFrequency:function(t,e){var n,r=e.getContext("2d");for(e.width=t.length,e.height=256,r.beginPath(),r.strokeStyle="blue",n=0;nr;r++)i[r]=i[r+2];i[4]=0,i[5]=0,l--}else l++;i[l]=1,f=!f}return null},o.prototype._decode=function(){var t,e,n=this,r=n._findStart(),o=null,a=!1,i=[],u=0,c=0,f=[],l=[],s=!1;if(null===r)return null;switch(o={code:r.code,start:r.start,end:r.end},l.push(o),c=o.code,o.code){case n.START_CODE_A:t=n.CODE_A;break;case n.START_CODE_B:t=n.CODE_B;break;case n.START_CODE_C:t=n.CODE_C;break;default:return null}for(;!a;){if(e=s,s=!1,o=n._decodeCode(o.end),null!==o)switch(o.code!==n.STOP_CODE&&(f.push(o.code),u++,c+=u*o.code),l.push(o),t){case n.CODE_A:if(o.code<64)i.push(String.fromCharCode(32+o.code));else if(o.code<96)i.push(String.fromCharCode(o.code-64));else switch(o.code){case n.CODE_SHIFT:s=!0,t=n.CODE_B;break;case n.CODE_B:t=n.CODE_B;break;case n.CODE_C:t=n.CODE_C;break;case n.STOP_CODE:a=!0}break;case n.CODE_B:if(o.code<96)i.push(String.fromCharCode(32+o.code));else switch(o.code){case n.CODE_SHIFT:s=!0,t=n.CODE_A;break;case n.CODE_A:t=n.CODE_A;break;case n.CODE_C:t=n.CODE_C;break;case n.STOP_CODE:a=!0}break;case n.CODE_C:switch(o.code<100&&i.push(o.code<10?"0"+o.code:o.code),o.code){case n.CODE_A:t=n.CODE_A;break;case n.CODE_B:t=n.CODE_B;break;case n.STOP_CODE:a=!0}}else a=!0;e&&(t=t===n.CODE_A?n.CODE_B:n.CODE_A)}return null===o?null:(o.end=n._nextUnset(n._row,o.end),n._verifyTrailingWhitespace(o)?(c-=u*f[f.length-1],c%103!==f[f.length-1]?null:i.length?(i.splice(i.length-1,1),{code:i.join(""),start:r.start,end:o.end,codeset:t,startInfo:r,decodedCodes:l,endInfo:o}):null):null)},i["default"].prototype._verifyTrailingWhitespace=function(t){var e,n=this;return e=t.end+(t.end-t.start)/2,ei)return Number.MAX_VALUE;r+=o}return r/a},n.prototype._nextSet=function(t,e){var n;for(e=e||0,n=e;n1)for(n=0;nr?(f.start=n-i,f.end=n,f.counter=o,f):null;c++,o[c]=1,u=!u}}else for(o.push(0),n=i;nt?0:t,r=t;e>r;r++)if(this._row[r]!==n)return!1;return!0},n.prototype._fillCounters=function(t,e,n){var r,o=this,a=0,i=[];for(n="undefined"!=typeof n?n:!0,t="undefined"!=typeof t?t:o._nextUnset(o._row),e=e||o._row.length,i[a]=0,r=t;e>r;r++)o._row[r]^n?i[a]++:(a++,i[a]=1,n=!n);return i},Object.defineProperty(n.prototype,"FORMAT",{value:"unknown",writeable:!1}),n.DIRECTION={FORWARD:1,REVERSE:-1},n.Exception={StartNotFoundException:"Start-Info was not found!",CodeNotFoundException:"Code could not be found!",PatternNotFoundException:"Pattern could not be found!"},n.CONFIG_KEYS={},e["default"]=n,t.exports=e["default"]},function(t,e,n){"use strict";function r(t){return t&&t.__esModule?t:{"default":t}}function o(t){i["default"].call(this,t)}Object.defineProperty(e,"__esModule",{value:!0});var a=n(26),i=r(a),u={CODE_L_START:{value:0},MODULO:{value:7},CODE_G_START:{value:10},START_PATTERN:{value:[1/3*7,1/3*7,1/3*7]},STOP_PATTERN:{value:[1/3*7,1/3*7,1/3*7]},MIDDLE_PATTERN:{value:[.2*7,.2*7,.2*7,.2*7,.2*7]},CODE_PATTERN:{value:[[3,2,1,1],[2,2,2,1],[2,1,2,2],[1,4,1,1],[1,1,3,2],[1,2,3,1],[1,1,1,4],[1,3,1,2],[1,2,1,3],[3,1,1,2],[1,1,2,3],[1,2,2,2],[2,2,1,2],[1,1,4,1],[2,3,1,1],[1,3,2,1],[4,1,1,1],[2,1,3,1],[3,1,2,1],[2,1,1,3]]},CODE_FREQUENCY:{value:[0,11,13,14,19,25,28,21,22,26]},SINGLE_CODE_ERROR:{value:.67},AVG_CODE_ERROR:{value:.27},FORMAT:{value:"ean_13",writeable:!1}};o.prototype=Object.create(i["default"].prototype,u),o.prototype.constructor=o,o.prototype._decodeCode=function(t,e){var n,r,o,a,i=[0,0,0,0],u=this,c=t,f=!u._row[c],l=0,s={error:Number.MAX_VALUE,code:-1,start:t,end:t};for(e||(e=u.CODE_PATTERN.length),n=c;nr;r++)o=u._matchPattern(a,u.CODE_PATTERN[r]),ou.AVG_CODE_ERROR?null:s}}else l++;i[l]=1,f=!f}return null},o.prototype._findPattern=function(t,e,n,r,o){var a,i,u,c,f,l=[],s=this,d=0,h={error:Number.MAX_VALUE,code:-1,start:0,end:0};for(e||(e=s._nextSet(s._row)),void 0===n&&(n=!1),void 0===r&&(r=!0),void 0===o&&(o=s.AVG_CODE_ERROR),a=0;ai))return h.error=i,h.start=a-c,h.end=a,h;if(!r)return null;for(u=0;u=0&&n._matchRange(t,e.start,0))return e;r=e.end,e=null}},o.prototype._verifyTrailingWhitespace=function(t){var e,n=this;return e=t.end+(t.end-t.start),er;r++){if(t=a._decodeCode(t.end),!t)return null;t.code>=a.CODE_G_START?(t.code=t.code-a.CODE_G_START,i|=1<<5-r):i|=0<<5-r,e.push(t.code),n.push(t)}if(o=a._calculateFirstDigit(i),null===o)return null;if(e.unshift(o),t=a._findPattern(a.MIDDLE_PATTERN,t.end,!0,!1),null===t)return null;for(n.push(t),r=0;6>r;r++){if(t=a._decodeCode(t.end,a.CODE_G_START),!t)return null;n.push(t),e.push(t.code)}return t},o.prototype._decode=function(){var t,e,n=this,r=[],o=[];return(t=n._findStart())?(e={code:t.code,start:t.start,end:t.end},o.push(e),(e=n._decodePayload(e,r,o))&&(e=n._findEnd(e.end,!1))?(o.push(e),n._checksum(r)?{code:r.join(""),start:t.start,end:e.end,codeset:"",startInfo:t,decodedCodes:o}:null):null):null},o.prototype._checksum=function(t){var e,n=0;for(e=t.length-2;e>=0;e-=2)n+=t[e];for(n*=3,e=t.length-1;e>=0;e-=2)n+=t[e];return n%10===0},e["default"]=o,t.exports=e["default"]},function(t,e,n){"use strict";function r(t){return t&&t.__esModule?t:{"default":t}}function o(){i["default"].call(this)}Object.defineProperty(e,"__esModule",{value:!0});var a=n(26),i=r(a),u=n(17),c=r(u),f={ALPHABETH_STRING:{value:"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ-. 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a=n(26),i=r(a),u={ALPHABETH_STRING:{value:"0123456789-$:/.+ABCD"},ALPHABET:{value:[48,49,50,51,52,53,54,55,56,57,45,36,58,47,46,43,65,66,67,68]},CHARACTER_ENCODINGS:{value:[3,6,9,96,18,66,33,36,48,72,12,24,69,81,84,21,26,41,11,14]},START_END:{value:[26,41,11,14]},MIN_ENCODED_CHARS:{value:4},MAX_ACCEPTABLE:{value:2},PADDING:{value:1.5},FORMAT:{value:"codabar",writeable:!1}};o.prototype=Object.create(i["default"].prototype,u),o.prototype.constructor=o,o.prototype._decode=function(){var t,e,n,r,o,a=this,i=[];if(this._counters=a._fillCounters(),t=a._findStart(),!t)return null;r=t.startCounter;do{if(n=a._toPattern(r),0>n)return null;if(e=a._patternToChar(n),0>e)return 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Math.floor((height/width) * _config.size) : _config.size : height; - - _canvasSize.x = calculatedWidth; - _canvasSize.y = calculatedHeight; - - setTimeout(function() { - publishEvent("canrecord", []); - }, 0); - }); - } - - function publishEvent(eventName, args) { - var j, - handlers = _eventHandlers[eventName]; - - if (handlers && handlers.length > 0) { - for ( j = 0; j < handlers.length; j++) { - handlers[j].apply(that, args); - } +const GetPixels = require("get-pixels"); + +var InputStream = {}; + +InputStream.createImageStream = function() { + var that = {}; + var _config = null; + + var width = 0, + height = 0, + frameIdx = 0, + paused = true, + loaded = false, + frame = null, + baseUrl, + ended = false, + size, + calculatedWidth, + calculatedHeight, + _eventNames = ['canrecord', 'ended'], + _eventHandlers = {}, + _topRight = {x: 0, y: 0}, + _canvasSize = {x: 0, y: 0}; + + function loadImages() { + loaded = false; + GetPixels(baseUrl, function(err, pixels) { + if (err) { + console.log(err); + exit(1); + } + loaded = true; + console.log(pixels.shape); + frame = pixels; + width = pixels.shape[0]; + height = pixels.shape[1]; + calculatedWidth = _config.size ? width/height > 1 ? _config.size : Math.floor((width/height) * _config.size) : width; + calculatedHeight = _config.size ? width/height > 1 ? Math.floor((height/width) * _config.size) : _config.size : height; + + _canvasSize.x = calculatedWidth; + _canvasSize.y = calculatedHeight; + + setTimeout(function() { + publishEvent("canrecord", []); + }, 0); + }); + } + + function publishEvent(eventName, args) { + var j, + handlers = _eventHandlers[eventName]; + + if (handlers && handlers.length > 0) { + for ( j = 0; j < handlers.length; j++) { + handlers[j].apply(that, args); } } + } - that.trigger = publishEvent; + that.trigger = publishEvent; - that.getWidth = function() { - return calculatedWidth; - }; + that.getWidth = function() { + return calculatedWidth; + }; - that.getHeight = function() { - return calculatedHeight; - }; + that.getHeight = function() { + return calculatedHeight; + }; - that.setWidth = function(width) { - calculatedWidth = width; - }; + that.setWidth = function(width) { + calculatedWidth = width; + }; - that.setHeight = function(height) { - calculatedHeight = height; - }; + that.setHeight = function(height) { + calculatedHeight = height; + }; - that.getRealWidth = function() { - return width; - }; + that.getRealWidth = function() { + return width; + }; - that.getRealHeight = function() { - return height; - }; + that.getRealHeight = function() { + return height; + }; - that.setInputStream = function(stream) { - _config = stream; - baseUrl = _config.src; - size = 1; - loadImages(); - }; + that.setInputStream = function(stream) { + _config = stream; + baseUrl = _config.src; + size = 1; + loadImages(); + }; - that.ended = function() { - return ended; - }; + that.ended = function() { + return ended; + }; - that.setAttribute = function() {}; + that.setAttribute = function() {}; - that.getConfig = function() { - return _config; - }; + that.getConfig = function() { + return _config; + }; - that.pause = function() { - paused = true; - }; + that.pause = function() { + paused = true; + }; - that.play = function() { - paused = false; - }; + that.play = function() { + paused = false; + }; - that.setCurrentTime = function(time) { - frameIdx = time; - }; + that.setCurrentTime = function(time) { + frameIdx = time; + }; - that.addEventListener = function(event, f) { - if (_eventNames.indexOf(event) !== -1) { - if (!_eventHandlers[event]) { - _eventHandlers[event] = []; - } - _eventHandlers[event].push(f); + that.addEventListener = function(event, f) { + if (_eventNames.indexOf(event) !== -1) { + if (!_eventHandlers[event]) { + _eventHandlers[event] = []; } - }; - - that.setTopRight = function(topRight) { - _topRight.x = topRight.x; - _topRight.y = topRight.y; - }; + _eventHandlers[event].push(f); + } + }; - that.getTopRight = function() { - return _topRight; - }; + that.setTopRight = function(topRight) { + _topRight.x = topRight.x; + _topRight.y = topRight.y; + }; - that.setCanvasSize = function(size) { - _canvasSize.x = size.x; - _canvasSize.y = size.y; - }; + that.getTopRight = function() { + return _topRight; + }; - that.getCanvasSize = function() { - return _canvasSize; - }; + that.setCanvasSize = function(size) { + _canvasSize.x = size.x; + _canvasSize.y = size.y; + }; - that.getFrame = function() { - if (!loaded){ - return null; - } - return frame; - }; + that.getCanvasSize = function() { + return _canvasSize; + }; - return that; + that.getFrame = function() { + if (!loaded){ + return null; + } + return frame; }; - return (InputStream); -}); + return that; +}; + +module.exports = InputStream; diff --git a/lib/quagga.js b/lib/quagga.js index bab5ec7d..b93caf5a 100644 --- a/lib/quagga.js +++ b/lib/quagga.js @@ -1,13 +1,7800 @@ -var requirejs = require('requirejs'), - path = require('path'); - -requirejs.config({ - "baseUrl" : path.resolve(__dirname, '..', 'src'), - "paths" : { - "typedefs" : "typedefs", - "input_stream": "../lib/input_stream", - "frame_grabber": "../lib/frame_grabber" - }, - nodeRequire: require -}); -module.exports = requirejs('quagga'); +module.exports = +/******/ (function(modules) { // webpackBootstrap +/******/ // The module cache +/******/ var installedModules = {}; +/******/ +/******/ // The require function +/******/ function __webpack_require__(moduleId) { +/******/ +/******/ // Check if module is in cache +/******/ if(installedModules[moduleId]) +/******/ return installedModules[moduleId].exports; +/******/ +/******/ // Create a new module (and put it into the cache) +/******/ var module = installedModules[moduleId] = { +/******/ exports: {}, +/******/ id: moduleId, +/******/ loaded: false +/******/ }; +/******/ +/******/ // Execute the module function +/******/ modules[moduleId].call(module.exports, module, module.exports, __webpack_require__); +/******/ +/******/ // Flag the module as loaded +/******/ module.loaded = true; +/******/ +/******/ // Return the exports of the module +/******/ return module.exports; +/******/ } +/******/ +/******/ +/******/ // expose the modules object (__webpack_modules__) +/******/ __webpack_require__.m = modules; +/******/ +/******/ // expose the module cache +/******/ __webpack_require__.c = installedModules; +/******/ +/******/ // __webpack_public_path__ +/******/ __webpack_require__.p = "/"; +/******/ +/******/ // Load entry module and return exports +/******/ return __webpack_require__(0); +/******/ }) +/************************************************************************/ +/******/ ([ +/* 0 */ +/***/ function(module, exports, __webpack_require__) { + + module.exports = __webpack_require__(1); + + +/***/ }, +/* 1 */ +/***/ function(module, exports, __webpack_require__) { + + 'use strict'; + + Object.defineProperty(exports, '__esModule', { + value: true + }); + + function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; } + + var _typedefs = __webpack_require__(2); + + var _typedefs2 = _interopRequireDefault(_typedefs); + + // eslint-disable-line no-unused-vars + + var _image_wrapper = __webpack_require__(3); + + var _image_wrapper2 = _interopRequireDefault(_image_wrapper); + + var _barcode_locator = __webpack_require__(9); + + var _barcode_locator2 = _interopRequireDefault(_barcode_locator); + + var _barcode_decoder = __webpack_require__(14); + + var _barcode_decoder2 = _interopRequireDefault(_barcode_decoder); + + var _config2 = __webpack_require__(59); + + var _config3 = _interopRequireDefault(_config2); + + var _events = __webpack_require__(60); + + var _events2 = _interopRequireDefault(_events); + + var _camera_access = __webpack_require__(61); + + var _camera_access2 = _interopRequireDefault(_camera_access); + + var _image_debug = __webpack_require__(13); + + var _image_debug2 = _interopRequireDefault(_image_debug); + + var _glMatrix = __webpack_require__(7); + + var _result_collector = __webpack_require__(62); + + var _result_collector2 = _interopRequireDefault(_result_collector); + + var merge = __webpack_require__(26); + var InputStream = __webpack_require__(63); + var FrameGrabber = __webpack_require__(65); + + var _inputStream, + _framegrabber, + _stopped, + _canvasContainer = { + ctx: { + image: null, + overlay: null + }, + dom: { + image: null, + overlay: null + } + }, + _inputImageWrapper, + _boxSize, + _decoder, + _workerPool = [], + _onUIThread = true, + _resultCollector, + _config = {}; + + function initializeData(imageWrapper) { + initBuffers(imageWrapper); + _decoder = _barcode_decoder2['default'].create(_config.decoder, _inputImageWrapper); + } + + function initConfig() { + if (typeof document !== "undefined") { + var vis = [{ + node: document.querySelector("div[data-controls]"), + prop: _config.controls + }, { + node: _canvasContainer.dom.overlay, + prop: _config.visual.show + }]; + + for (var i = 0; i < vis.length; i++) { + if (vis[i].node) { + if (vis[i].prop === true) { + vis[i].node.style.display = "block"; + } else { + vis[i].node.style.display = "none"; + } + } + } + } + } + + function initInputStream(cb) { + var video; + if (_config.inputStream.type === "VideoStream") { + video = document.createElement("video"); + _inputStream = InputStream.createVideoStream(video); + } else if (_config.inputStream.type === "ImageStream") { + _inputStream = InputStream.createImageStream(); + } else if (_config.inputStream.type === "LiveStream") { + var $viewport = document.querySelector("#interactive.viewport"); + if ($viewport) { + video = $viewport.querySelector("video"); + if (!video) { + video = document.createElement("video"); + $viewport.appendChild(video); + } + } + _inputStream = InputStream.createLiveStream(video); + _camera_access2['default'].request(video, _config.inputStream.constraints, function (err) { + if (!err) { + _inputStream.trigger("canrecord"); + } else { + return cb(err); + } + }); + } + + _inputStream.setAttribute("preload", "auto"); + _inputStream.setAttribute("autoplay", true); + _inputStream.setInputStream(_config.inputStream); + _inputStream.addEventListener("canrecord", canRecord.bind(undefined, cb)); + } + + function canRecord(cb) { + _barcode_locator2['default'].checkImageConstraints(_inputStream, _config.locator); + initCanvas(); + _framegrabber = FrameGrabber.create(_inputStream, _canvasContainer.dom.image); + initConfig(); + + if (_config.numOfWorkers > 0) { + initWorkers(function () { + console.log("Workers created"); + ready(cb); + }); + } else { + initializeData(); + ready(cb); + } + } + + function ready(cb) { + _inputStream.play(); + cb(); + } + + function initCanvas() { + if (typeof document !== "undefined") { + var $viewport = document.querySelector("#interactive.viewport"); + _canvasContainer.dom.image = document.querySelector("canvas.imgBuffer"); + if (!_canvasContainer.dom.image) { + _canvasContainer.dom.image = document.createElement("canvas"); + _canvasContainer.dom.image.className = "imgBuffer"; + if ($viewport && _config.inputStream.type === "ImageStream") { + $viewport.appendChild(_canvasContainer.dom.image); + } + } + _canvasContainer.ctx.image = _canvasContainer.dom.image.getContext("2d"); + _canvasContainer.dom.image.width = _inputStream.getCanvasSize().x; + _canvasContainer.dom.image.height = _inputStream.getCanvasSize().y; + + _canvasContainer.dom.overlay = document.querySelector("canvas.drawingBuffer"); + if (!_canvasContainer.dom.overlay) { + _canvasContainer.dom.overlay = document.createElement("canvas"); + _canvasContainer.dom.overlay.className = "drawingBuffer"; + if ($viewport) { + $viewport.appendChild(_canvasContainer.dom.overlay); + } + var clearFix = document.createElement("br"); + clearFix.setAttribute("clear", "all"); + if ($viewport) { + $viewport.appendChild(clearFix); + } + } + _canvasContainer.ctx.overlay = _canvasContainer.dom.overlay.getContext("2d"); + _canvasContainer.dom.overlay.width = _inputStream.getCanvasSize().x; + _canvasContainer.dom.overlay.height = _inputStream.getCanvasSize().y; + } + } + + function initBuffers(imageWrapper) { + if (imageWrapper) { + _inputImageWrapper = imageWrapper; + } else { + _inputImageWrapper = new _image_wrapper2['default']({ + x: _inputStream.getWidth(), + y: _inputStream.getHeight() + }); + } + + console.log(_inputImageWrapper.size); + _boxSize = [_glMatrix.vec2.clone([0, 0]), _glMatrix.vec2.clone([0, _inputImageWrapper.size.y]), _glMatrix.vec2.clone([_inputImageWrapper.size.x, _inputImageWrapper.size.y]), _glMatrix.vec2.clone([_inputImageWrapper.size.x, 0])]; + _barcode_locator2['default'].init(_inputImageWrapper, _config.locator); + } + + function getBoundingBoxes() { + if (_config.locate) { + return _barcode_locator2['default'].locate(); + } else { + return [[_glMatrix.vec2.clone(_boxSize[0]), _glMatrix.vec2.clone(_boxSize[1]), _glMatrix.vec2.clone(_boxSize[2]), _glMatrix.vec2.clone(_boxSize[3])]]; + } + } + + function transformResult(result) { + var topRight = _inputStream.getTopRight(), + xOffset = topRight.x, + yOffset = topRight.y, + i; + + if (!result || xOffset === 0 && yOffset === 0) { + return; + } + + if (result.line && result.line.length === 2) { + moveLine(result.line); + } + if (result.boxes && result.boxes.length > 0) { + for (i = 0; i < result.boxes.length; i++) { + moveBox(result.boxes[i]); + } + } + + function moveBox(box) { + var corner = box.length; + + while (corner--) { + box[corner][0] += xOffset; + box[corner][1] += yOffset; + } + } + + function moveLine(line) { + line[0].x += xOffset; + line[0].y += yOffset; + line[1].x += xOffset; + line[1].y += yOffset; + } + } + + function publishResult(result, imageData) { + if (_onUIThread) { + transformResult(result); + if (imageData && result && result.codeResult) { + if (_resultCollector) { + _resultCollector.addResult(imageData, _inputStream.getCanvasSize(), result.codeResult); + } + } + } + + _events2['default'].publish("processed", result); + if (result && result.codeResult) { + _events2['default'].publish("detected", result); + } + } + + function locateAndDecode() { + var result, boxes; + + boxes = getBoundingBoxes(); + if (boxes) { + result = _decoder.decodeFromBoundingBoxes(boxes); + result = result || {}; + result.boxes = boxes; + publishResult(result, _inputImageWrapper.data); + } else { + publishResult(); + } + } + + function update() { + var availableWorker; + + if (_onUIThread) { + if (_workerPool.length > 0) { + availableWorker = _workerPool.filter(function (workerThread) { + return !workerThread.busy; + })[0]; + if (availableWorker) { + _framegrabber.attachData(availableWorker.imageData); + } else { + return; // all workers are busy + } + } else { + _framegrabber.attachData(_inputImageWrapper.data); + } + if (_framegrabber.grab()) { + if (availableWorker) { + availableWorker.busy = true; + availableWorker.worker.postMessage({ + cmd: 'process', + imageData: availableWorker.imageData + }, [availableWorker.imageData.buffer]); + } else { + locateAndDecode(); + } + } + } else { + locateAndDecode(); + } + } + + function _start() { + _stopped = false; + (function frame() { + if (!_stopped) { + update(); + if (_onUIThread && _config.inputStream.type === "LiveStream") { + window.requestAnimFrame(frame); + } + } + })(); + } + + function initWorkers(cb) { + var i; + _workerPool = []; + + for (i = 0; i < _config.numOfWorkers; i++) { + initWorker(workerInitialized); + } + + function workerInitialized(workerThread) { + _workerPool.push(workerThread); + if (_workerPool.length >= _config.numOfWorkers) { + cb(); + } + } + } + + function initWorker(cb) { + var blobURL, + workerThread = { + worker: undefined, + imageData: new Uint8Array(_inputStream.getWidth() * _inputStream.getHeight()), + busy: true + }; + + blobURL = generateWorkerBlob(); + workerThread.worker = new Worker(blobURL); + + workerThread.worker.onmessage = function (e) { + if (e.data.event === 'initialized') { + URL.revokeObjectURL(blobURL); + workerThread.busy = false; + workerThread.imageData = new Uint8Array(e.data.imageData); + console.log("Worker initialized"); + return cb(workerThread); + } else if (e.data.event === 'processed') { + workerThread.imageData = new Uint8Array(e.data.imageData); + workerThread.busy = false; + publishResult(e.data.result, workerThread.imageData); + } else if (e.data.event === 'error') { + console.log("Worker error: " + e.data.message); + } + }; + + workerThread.worker.postMessage({ + cmd: 'init', + size: { x: _inputStream.getWidth(), y: _inputStream.getHeight() }, + imageData: workerThread.imageData, + config: _config + }, [workerThread.imageData.buffer]); + } + + function workerInterface(factory) { + /* eslint-disable no-undef*/ + if (factory) { + var Quagga = factory(); + if (!Quagga) { + self.postMessage({ 'event': 'error', message: 'Quagga could not be created' }); + return; + } + } + var imageWrapper; + + self.onmessage = function (e) { + if (e.data.cmd === 'init') { + var config = e.data.config; + config.numOfWorkers = 0; + imageWrapper = new Quagga.ImageWrapper({ + x: e.data.size.x, + y: e.data.size.y + }, new Uint8Array(e.data.imageData)); + Quagga.init(config, ready, imageWrapper); + Quagga.onProcessed(onProcessed); + } else if (e.data.cmd === 'process') { + imageWrapper.data = new Uint8Array(e.data.imageData); + Quagga.start(); + } else if (e.data.cmd === 'setReaders') { + Quagga.setReaders(e.data.readers); + } + }; + + function onProcessed(result) { + self.postMessage({ + 'event': 'processed', + imageData: imageWrapper.data, + result: result + }, [imageWrapper.data.buffer]); + } + + function ready() { + // eslint-disable-line + self.postMessage({ 'event': 'initialized', imageData: imageWrapper.data }, [imageWrapper.data.buffer]); + } + + /* eslint-enable */ + } + + function generateWorkerBlob() { + var blob, factorySource; + + /* jshint ignore:start */ + if (typeof __factorySource__ !== 'undefined') { + factorySource = __factorySource__; // eslint-disable-line no-undef + } + /* jshint ignore:end */ + + blob = new Blob(['(' + workerInterface.toString() + ')(' + factorySource + ');'], { type: 'text/javascript' }); + + return window.URL.createObjectURL(blob); + } + + function _setReaders(readers) { + if (_decoder) { + _decoder.setReaders(readers); + } else if (_onUIThread && _workerPool.length > 0) { + _workerPool.forEach(function (workerThread) { + workerThread.worker.postMessage({ cmd: 'setReaders', readers: readers }); + }); + } + } + + exports['default'] = { + init: function init(config, cb, imageWrapper) { + _config = merge({}, _config3['default'], config); + if (imageWrapper) { + _onUIThread = false; + initializeData(imageWrapper); + return cb(); + } else { + initInputStream(cb); + } + }, + start: function start() { + _start(); + }, + stop: function stop() { + _stopped = true; + _workerPool.forEach(function (workerThread) { + workerThread.worker.terminate(); + console.log("Worker terminated!"); + }); + _workerPool.length = 0; + if (_config.inputStream.type === "LiveStream") { + _camera_access2['default'].release(); + _inputStream.clearEventHandlers(); + } + }, + pause: function pause() { + _stopped = true; + }, + onDetected: function onDetected(callback) { + _events2['default'].subscribe("detected", callback); + }, + offDetected: function offDetected(callback) { + _events2['default'].unsubscribe("detected", callback); + }, + onProcessed: function onProcessed(callback) { + _events2['default'].subscribe("processed", callback); + }, + offProcessed: function offProcessed(callback) { + _events2['default'].unsubscribe("processed", callback); + }, + setReaders: function setReaders(readers) { + _setReaders(readers); + }, + registerResultCollector: function registerResultCollector(resultCollector) { + if (resultCollector && typeof resultCollector.addResult === 'function') { + _resultCollector = resultCollector; + } + }, + canvas: _canvasContainer, + decodeSingle: function decodeSingle(config, resultCallback) { + config = merge({ + inputStream: { + type: "ImageStream", + sequence: false, + size: 800, + src: config.src + }, + numOfWorkers: 1, + locator: { + halfSample: false + } + }, config); + this.init(config, function () { + _events2['default'].once("processed", function (result) { + _stopped = true; + resultCallback.call(null, result); + }, true); + _start(); + }); + }, + ImageWrapper: _image_wrapper2['default'], + ImageDebug: _image_debug2['default'], + ResultCollector: _result_collector2['default'] + }; + module.exports = exports['default']; + +/***/ }, +/* 2 */ +/***/ function(module, exports) { + + /* + * typedefs.js + * Normalizes browser-specific prefixes + */ + + 'use strict'; + + if (typeof window !== 'undefined') { + window.requestAnimFrame = (function () { + return window.requestAnimationFrame || window.webkitRequestAnimationFrame || window.mozRequestAnimationFrame || window.oRequestAnimationFrame || window.msRequestAnimationFrame || function ( /* function FrameRequestCallback */callback) { + window.setTimeout(callback, 1000 / 60); + }; + })(); + + navigator.getUserMedia = navigator.getUserMedia || navigator.webkitGetUserMedia || navigator.mozGetUserMedia || navigator.msGetUserMedia; + window.URL = window.URL || window.webkitURL || window.mozURL || window.msURL; + } + Math.imul = Math.imul || function (a, b) { + var ah = a >>> 16 & 0xffff, + al = a & 0xffff, + bh = b >>> 16 & 0xffff, + bl = b & 0xffff; + // the shift by 0 fixes the sign on the high part + // the final |0 converts the unsigned value into a signed value + return al * bl + (ah * bl + al * bh << 16 >>> 0) | 0; + }; + +/***/ }, +/* 3 */ +/***/ function(module, exports, __webpack_require__) { + + 'use strict'; + + Object.defineProperty(exports, '__esModule', { + value: true + }); + + function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; } + + var _subImage = __webpack_require__(4); + + var _subImage2 = _interopRequireDefault(_subImage); + + var _cv_utils = __webpack_require__(5); + + var _cv_utils2 = _interopRequireDefault(_cv_utils); + + var _array_helper = __webpack_require__(8); + + var _array_helper2 = _interopRequireDefault(_array_helper); + + var _glMatrix = __webpack_require__(7); + + /** + * Represents a basic image combining the data and size. + * In addition, some methods for manipulation are contained. + * @param size {x,y} The size of the image in pixel + * @param data {Array} If given, a flat array containing the pixel data + * @param ArrayType {Type} If given, the desired DataType of the Array (may be typed/non-typed) + * @param initialize {Boolean} Indicating if the array should be initialized on creation. + * @returns {ImageWrapper} + */ + function ImageWrapper(size, data, ArrayType, initialize) { + if (!data) { + if (ArrayType) { + this.data = new ArrayType(size.x * size.y); + if (ArrayType === Array && initialize) { + _array_helper2['default'].init(this.data, 0); + } + } else { + this.data = new Uint8Array(size.x * size.y); + if (Uint8Array === Array && initialize) { + _array_helper2['default'].init(this.data, 0); + } + } + } else { + this.data = data; + } + this.size = size; + } + + /** + * tests if a position is within the image with a given offset + * @param imgRef {x, y} The location to test + * @param border Number the padding value in pixel + * @returns {Boolean} true if location inside the image's border, false otherwise + * @see cvd/image.h + */ + ImageWrapper.prototype.inImageWithBorder = function (imgRef, border) { + return imgRef.x >= border && imgRef.y >= border && imgRef.x < this.size.x - border && imgRef.y < this.size.y - border; + }; + + /** + * Performs bilinear sampling + * @param inImg Image to extract sample from + * @param x the x-coordinate + * @param y the y-coordinate + * @returns the sampled value + * @see cvd/vision.h + */ + ImageWrapper.sample = function (inImg, x, y) { + var lx = Math.floor(x); + var ly = Math.floor(y); + var w = inImg.size.x; + var base = ly * inImg.size.x + lx; + var a = inImg.data[base + 0]; + var b = inImg.data[base + 1]; + var c = inImg.data[base + w]; + var d = inImg.data[base + w + 1]; + var e = a - b; + x -= lx; + y -= ly; + + var result = Math.floor(x * (y * (e - c + d) - e) + y * (c - a) + a); + return result; + }; + + /** + * Initializes a given array. Sets each element to zero. + * @param array {Array} The array to initialize + */ + ImageWrapper.clearArray = function (array) { + var l = array.length; + while (l--) { + array[l] = 0; + } + }; + + /** + * Creates a {SubImage} from the current image ({this}). + * @param from {ImageRef} The position where to start the {SubImage} from. (top-left corner) + * @param size {ImageRef} The size of the resulting image + * @returns {SubImage} A shared part of the original image + */ + ImageWrapper.prototype.subImage = function (from, size) { + return new _subImage2['default'](from, size, this); + }; + + /** + * Creates an {ImageWrapper) and copies the needed underlying image-data area + * @param imageWrapper {ImageWrapper} The target {ImageWrapper} where the data should be copied + * @param from {ImageRef} The location where to copy from (top-left location) + */ + ImageWrapper.prototype.subImageAsCopy = function (imageWrapper, from) { + var sizeY = imageWrapper.size.y, + sizeX = imageWrapper.size.x; + var x, y; + for (x = 0; x < sizeX; x++) { + for (y = 0; y < sizeY; y++) { + imageWrapper.data[y * sizeX + x] = this.data[(from.y + y) * this.size.x + from.x + x]; + } + } + }; + + ImageWrapper.prototype.copyTo = function (imageWrapper) { + var length = this.data.length, + srcData = this.data, + dstData = imageWrapper.data; + + while (length--) { + dstData[length] = srcData[length]; + } + }; + + /** + * Retrieves a given pixel position from the image + * @param x {Number} The x-position + * @param y {Number} The y-position + * @returns {Number} The grayscale value at the pixel-position + */ + ImageWrapper.prototype.get = function (x, y) { + return this.data[y * this.size.x + x]; + }; + + /** + * Retrieves a given pixel position from the image + * @param x {Number} The x-position + * @param y {Number} The y-position + * @returns {Number} The grayscale value at the pixel-position + */ + ImageWrapper.prototype.getSafe = function (x, y) { + var i; + + if (!this.indexMapping) { + this.indexMapping = { + x: [], + y: [] + }; + for (i = 0; i < this.size.x; i++) { + this.indexMapping.x[i] = i; + this.indexMapping.x[i + this.size.x] = i; + } + for (i = 0; i < this.size.y; i++) { + this.indexMapping.y[i] = i; + this.indexMapping.y[i + this.size.y] = i; + } + } + return this.data[this.indexMapping.y[y + this.size.y] * this.size.x + this.indexMapping.x[x + this.size.x]]; + }; + + /** + * Sets a given pixel position in the image + * @param x {Number} The x-position + * @param y {Number} The y-position + * @param value {Number} The grayscale value to set + * @returns {ImageWrapper} The Image itself (for possible chaining) + */ + ImageWrapper.prototype.set = function (x, y, value) { + this.data[y * this.size.x + x] = value; + return this; + }; + + /** + * Sets the border of the image (1 pixel) to zero + */ + ImageWrapper.prototype.zeroBorder = function () { + var i, + width = this.size.x, + height = this.size.y, + data = this.data; + for (i = 0; i < width; i++) { + data[i] = data[(height - 1) * width + i] = 0; + } + for (i = 1; i < height - 1; i++) { + data[i * width] = data[i * width + (width - 1)] = 0; + } + }; + + /** + * Inverts a binary image in place + */ + ImageWrapper.prototype.invert = function () { + var data = this.data, + length = data.length; + + while (length--) { + data[length] = data[length] ? 0 : 1; + } + }; + + ImageWrapper.prototype.convolve = function (kernel) { + var x, + y, + kx, + ky, + kSize = kernel.length / 2 | 0, + accu = 0; + for (y = 0; y < this.size.y; y++) { + for (x = 0; x < this.size.x; x++) { + accu = 0; + for (ky = -kSize; ky <= kSize; ky++) { + for (kx = -kSize; kx <= kSize; kx++) { + accu += kernel[ky + kSize][kx + kSize] * this.getSafe(x + kx, y + ky); + } + } + this.data[y * this.size.x + x] = accu; + } + } + }; + + ImageWrapper.prototype.moments = function (labelcount) { + var data = this.data, + x, + y, + height = this.size.y, + width = this.size.x, + val, + ysq, + labelsum = [], + i, + label, + mu11, + mu02, + mu20, + x_, + y_, + tmp, + result = [], + PI = Math.PI, + PI_4 = PI / 4; + + if (labelcount <= 0) { + return result; + } + + for (i = 0; i < labelcount; i++) { + labelsum[i] = { + m00: 0, + m01: 0, + m10: 0, + m11: 0, + m02: 0, + m20: 0, + theta: 0, + rad: 0 + }; + } + + for (y = 0; y < height; y++) { + ysq = y * y; + for (x = 0; x < width; x++) { + val = data[y * width + x]; + if (val > 0) { + label = labelsum[val - 1]; + label.m00 += 1; + label.m01 += y; + label.m10 += x; + label.m11 += x * y; + label.m02 += ysq; + label.m20 += x * x; + } + } + } + + for (i = 0; i < labelcount; i++) { + label = labelsum[i]; + if (!isNaN(label.m00) && label.m00 !== 0) { + x_ = label.m10 / label.m00; + y_ = label.m01 / label.m00; + mu11 = label.m11 / label.m00 - x_ * y_; + mu02 = label.m02 / label.m00 - y_ * y_; + mu20 = label.m20 / label.m00 - x_ * x_; + tmp = (mu02 - mu20) / (2 * mu11); + tmp = 0.5 * Math.atan(tmp) + (mu11 >= 0 ? PI_4 : -PI_4) + PI; + label.theta = (tmp * 180 / PI + 90) % 180 - 90; + if (label.theta < 0) { + label.theta += 180; + } + label.rad = tmp > PI ? tmp - PI : tmp; + label.vec = _glMatrix.vec2.clone([Math.cos(tmp), Math.sin(tmp)]); + result.push(label); + } + } + + return result; + }; + + /** + * Displays the {ImageWrapper} in a given canvas + * @param canvas {Canvas} The canvas element to write to + * @param scale {Number} Scale which is applied to each pixel-value + */ + ImageWrapper.prototype.show = function (canvas, scale) { + var ctx, frame, data, current, pixel, x, y; + + if (!scale) { + scale = 1.0; + } + ctx = canvas.getContext('2d'); + canvas.width = this.size.x; + canvas.height = this.size.y; + frame = ctx.getImageData(0, 0, canvas.width, canvas.height); + data = frame.data; + current = 0; + for (y = 0; y < this.size.y; y++) { + for (x = 0; x < this.size.x; x++) { + pixel = y * this.size.x + x; + current = this.get(x, y) * scale; + data[pixel * 4 + 0] = current; + data[pixel * 4 + 1] = current; + data[pixel * 4 + 2] = current; + data[pixel * 4 + 3] = 255; + } + } + //frame.data = data; + ctx.putImageData(frame, 0, 0); + }; + + /** + * Displays the {SubImage} in a given canvas + * @param canvas {Canvas} The canvas element to write to + * @param scale {Number} Scale which is applied to each pixel-value + */ + ImageWrapper.prototype.overlay = function (canvas, scale, from) { + if (!scale || scale < 0 || scale > 360) { + scale = 360; + } + var hsv = [0, 1, 1]; + var rgb = [0, 0, 0]; + var whiteRgb = [255, 255, 255]; + var blackRgb = [0, 0, 0]; + var result = []; + var ctx = canvas.getContext('2d'); + var frame = ctx.getImageData(from.x, from.y, this.size.x, this.size.y); + var data = frame.data; + var length = this.data.length; + while (length--) { + hsv[0] = this.data[length] * scale; + result = hsv[0] <= 0 ? whiteRgb : hsv[0] >= 360 ? blackRgb : _cv_utils2['default'].hsv2rgb(hsv, rgb); + data[length * 4 + 0] = result[0]; + data[length * 4 + 1] = result[1]; + data[length * 4 + 2] = result[2]; + data[length * 4 + 3] = 255; + } + ctx.putImageData(frame, from.x, from.y); + }; + + exports['default'] = ImageWrapper; + module.exports = exports['default']; + +/***/ }, +/* 4 */ +/***/ function(module, exports) { + + /** + * Construct representing a part of another {ImageWrapper}. Shares data + * between the parent and the child. + * @param from {ImageRef} The position where to start the {SubImage} from. (top-left corner) + * @param size {ImageRef} The size of the resulting image + * @param I {ImageWrapper} The {ImageWrapper} to share from + * @returns {SubImage} A shared part of the original image + */ + 'use strict'; + + Object.defineProperty(exports, '__esModule', { + value: true + }); + function SubImage(from, size, I) { + if (!I) { + I = { + data: null, + size: size + }; + } + this.data = I.data; + this.originalSize = I.size; + this.I = I; + + this.from = from; + this.size = size; + } + + /** + * Displays the {SubImage} in a given canvas + * @param canvas {Canvas} The canvas element to write to + * @param scale {Number} Scale which is applied to each pixel-value + */ + SubImage.prototype.show = function (canvas, scale) { + var ctx, frame, data, current, y, x, pixel; + + if (!scale) { + scale = 1.0; + } + ctx = canvas.getContext('2d'); + canvas.width = this.size.x; + canvas.height = this.size.y; + frame = ctx.getImageData(0, 0, canvas.width, canvas.height); + data = frame.data; + current = 0; + for (y = 0; y < this.size.y; y++) { + for (x = 0; x < this.size.x; x++) { + pixel = y * this.size.x + x; + current = this.get(x, y) * scale; + data[pixel * 4 + 0] = current; + data[pixel * 4 + 1] = current; + data[pixel * 4 + 2] = current; + data[pixel * 4 + 3] = 255; + } + } + frame.data = data; + ctx.putImageData(frame, 0, 0); + }; + + /** + * Retrieves a given pixel position from the {SubImage} + * @param x {Number} The x-position + * @param y {Number} The y-position + * @returns {Number} The grayscale value at the pixel-position + */ + SubImage.prototype.get = function (x, y) { + return this.data[(this.from.y + y) * this.originalSize.x + this.from.x + x]; + }; + + /** + * Updates the underlying data from a given {ImageWrapper} + * @param image {ImageWrapper} The updated image + */ + SubImage.prototype.updateData = function (image) { + this.originalSize = image.size; + this.data = image.data; + }; + + /** + * Updates the position of the shared area + * @param from {x,y} The new location + * @returns {SubImage} returns {this} for possible chaining + */ + SubImage.prototype.updateFrom = function (from) { + this.from = from; + return this; + }; + + exports['default'] = SubImage; + module.exports = exports['default']; + +/***/ }, +/* 5 */ +/***/ function(module, exports, __webpack_require__) { + + 'use strict'; + + Object.defineProperty(exports, '__esModule', { + value: true + }); + + function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; } + + var _cluster = __webpack_require__(6); + + var _cluster2 = _interopRequireDefault(_cluster); + + var _array_helper = __webpack_require__(8); + + var _array_helper2 = _interopRequireDefault(_array_helper); + + var _glMatrix = __webpack_require__(7); + + var CVUtils = {}; + + /** + * @param x x-coordinate + * @param y y-coordinate + * @return ImageReference {x,y} Coordinate + */ + CVUtils.imageRef = function (x, y) { + var that = { + x: x, + y: y, + toVec2: function toVec2() { + return _glMatrix.vec2.clone([this.x, this.y]); + }, + toVec3: function toVec3() { + return _glMatrix.vec3.clone([this.x, this.y, 1]); + }, + round: function round() { + this.x = this.x > 0.0 ? Math.floor(this.x + 0.5) : Math.floor(this.x - 0.5); + this.y = this.y > 0.0 ? Math.floor(this.y + 0.5) : Math.floor(this.y - 0.5); + return this; + } + }; + return that; + }; + + /** + * Computes an integral image of a given grayscale image. + * @param imageDataContainer {ImageDataContainer} the image to be integrated + */ + CVUtils.computeIntegralImage2 = function (imageWrapper, integralWrapper) { + var imageData = imageWrapper.data; + var width = imageWrapper.size.x; + var height = imageWrapper.size.y; + var integralImageData = integralWrapper.data; + var sum = 0, + posA = 0, + posB = 0, + posC = 0, + posD = 0, + x, + y; + + // sum up first column + posB = width; + sum = 0; + for (y = 1; y < height; y++) { + sum += imageData[posA]; + integralImageData[posB] += sum; + posA += width; + posB += width; + } + + posA = 0; + posB = 1; + sum = 0; + for (x = 1; x < width; x++) { + sum += imageData[posA]; + integralImageData[posB] += sum; + posA++; + posB++; + } + + for (y = 1; y < height; y++) { + posA = y * width + 1; + posB = (y - 1) * width + 1; + posC = y * width; + posD = (y - 1) * width; + for (x = 1; x < width; x++) { + integralImageData[posA] += imageData[posA] + integralImageData[posB] + integralImageData[posC] - integralImageData[posD]; + posA++; + posB++; + posC++; + posD++; + } + } + }; + + CVUtils.computeIntegralImage = function (imageWrapper, integralWrapper) { + var imageData = imageWrapper.data; + var width = imageWrapper.size.x; + var height = imageWrapper.size.y; + var integralImageData = integralWrapper.data; + var sum = 0; + + // sum up first row + for (var i = 0; i < width; i++) { + sum += imageData[i]; + integralImageData[i] = sum; + } + + for (var v = 1; v < height; v++) { + sum = 0; + for (var u = 0; u < width; u++) { + sum += imageData[v * width + u]; + integralImageData[v * width + u] = sum + integralImageData[(v - 1) * width + u]; + } + } + }; + + CVUtils.thresholdImage = function (imageWrapper, threshold, targetWrapper) { + if (!targetWrapper) { + targetWrapper = imageWrapper; + } + var imageData = imageWrapper.data, + length = imageData.length, + targetData = targetWrapper.data; + + while (length--) { + targetData[length] = imageData[length] < threshold ? 1 : 0; + } + }; + + CVUtils.computeHistogram = function (imageWrapper, bitsPerPixel) { + if (!bitsPerPixel) { + bitsPerPixel = 8; + } + var imageData = imageWrapper.data, + length = imageData.length, + bitShift = 8 - bitsPerPixel, + bucketCnt = 1 << bitsPerPixel, + hist = new Int32Array(bucketCnt); + + while (length--) { + hist[imageData[length] >> bitShift]++; + } + return hist; + }; + + CVUtils.sharpenLine = function (line) { + var i, + length = line.length, + left = line[0], + center = line[1], + right; + + for (i = 1; i < length - 1; i++) { + right = line[i + 1]; + // -1 4 -1 kernel + line[i - 1] = center * 2 - left - right & 255; + left = center; + center = right; + } + return line; + }; + + CVUtils.determineOtsuThreshold = function (imageWrapper, bitsPerPixel) { + if (!bitsPerPixel) { + bitsPerPixel = 8; + } + var hist, + threshold, + bitShift = 8 - bitsPerPixel; + + function px(init, end) { + var sum = 0, + i; + for (i = init; i <= end; i++) { + sum += hist[i]; + } + return sum; + } + + function mx(init, end) { + var i, + sum = 0; + + for (i = init; i <= end; i++) { + sum += i * hist[i]; + } + + return sum; + } + + function determineThreshold() { + var vet = [0], + p1, + p2, + p12, + k, + m1, + m2, + m12, + max = (1 << bitsPerPixel) - 1; + + hist = CVUtils.computeHistogram(imageWrapper, bitsPerPixel); + for (k = 1; k < max; k++) { + p1 = px(0, k); + p2 = px(k + 1, max); + p12 = p1 * p2; + if (p12 === 0) { + p12 = 1; + } + m1 = mx(0, k) * p2; + m2 = mx(k + 1, max) * p1; + m12 = m1 - m2; + vet[k] = m12 * m12 / p12; + } + return _array_helper2['default'].maxIndex(vet); + } + + threshold = determineThreshold(); + return threshold << bitShift; + }; + + CVUtils.otsuThreshold = function (imageWrapper, targetWrapper) { + var threshold = CVUtils.determineOtsuThreshold(imageWrapper); + + CVUtils.thresholdImage(imageWrapper, threshold, targetWrapper); + return threshold; + }; + + // local thresholding + CVUtils.computeBinaryImage = function (imageWrapper, integralWrapper, targetWrapper) { + CVUtils.computeIntegralImage(imageWrapper, integralWrapper); + + if (!targetWrapper) { + targetWrapper = imageWrapper; + } + var imageData = imageWrapper.data; + var targetData = targetWrapper.data; + var width = imageWrapper.size.x; + var height = imageWrapper.size.y; + var integralImageData = integralWrapper.data; + var sum = 0, + v, + u, + kernel = 3, + A, + B, + C, + D, + avg, + size = (kernel * 2 + 1) * (kernel * 2 + 1); + + // clear out top & bottom-border + for (v = 0; v <= kernel; v++) { + for (u = 0; u < width; u++) { + targetData[v * width + u] = 0; + targetData[(height - 1 - v) * width + u] = 0; + } + } + + // clear out left & right border + for (v = kernel; v < height - kernel; v++) { + for (u = 0; u <= kernel; u++) { + targetData[v * width + u] = 0; + targetData[v * width + (width - 1 - u)] = 0; + } + } + + for (v = kernel + 1; v < height - kernel - 1; v++) { + for (u = kernel + 1; u < width - kernel; u++) { + A = integralImageData[(v - kernel - 1) * width + (u - kernel - 1)]; + B = integralImageData[(v - kernel - 1) * width + (u + kernel)]; + C = integralImageData[(v + kernel) * width + (u - kernel - 1)]; + D = integralImageData[(v + kernel) * width + (u + kernel)]; + sum = D - C - B + A; + avg = sum / size; + targetData[v * width + u] = imageData[v * width + u] > avg + 5 ? 0 : 1; + } + } + }; + + CVUtils.cluster = function (points, threshold, property) { + var i, + k, + cluster, + point, + clusters = []; + + if (!property) { + property = "rad"; + } + + function addToCluster(newPoint) { + var found = false; + for (k = 0; k < clusters.length; k++) { + cluster = clusters[k]; + if (cluster.fits(newPoint)) { + cluster.add(newPoint); + found = true; + } + } + return found; + } + + // iterate over each cloud + for (i = 0; i < points.length; i++) { + point = _cluster2['default'].createPoint(points[i], i, property); + if (!addToCluster(point)) { + clusters.push(_cluster2['default'].create(point, threshold)); + } + } + return clusters; + }; + + CVUtils.Tracer = { + trace: function trace(points, vec) { + var iteration, + maxIterations = 10, + top = [], + result = [], + centerPos = 0, + currentPos = 0; + + function trace(idx, forward) { + var from, + to, + toIdx, + predictedPos, + thresholdX = 1, + thresholdY = Math.abs(vec[1] / 10), + found = false; + + function match(pos, predicted) { + if (pos.x > predicted.x - thresholdX && pos.x < predicted.x + thresholdX && pos.y > predicted.y - thresholdY && pos.y < predicted.y + thresholdY) { + return true; + } else { + return false; + } + } + + // check if the next index is within the vec specifications + // if not, check as long as the threshold is met + + from = points[idx]; + if (forward) { + predictedPos = { + x: from.x + vec[0], + y: from.y + vec[1] + }; + } else { + predictedPos = { + x: from.x - vec[0], + y: from.y - vec[1] + }; + } + + toIdx = forward ? idx + 1 : idx - 1; + to = points[toIdx]; + while (to && (found = match(to, predictedPos)) !== true && Math.abs(to.y - from.y) < vec[1]) { + toIdx = forward ? toIdx + 1 : toIdx - 1; + to = points[toIdx]; + } + + return found ? toIdx : null; + } + + for (iteration = 0; iteration < maxIterations; iteration++) { + // randomly select point to start with + centerPos = Math.floor(Math.random() * points.length); + + // trace forward + top = []; + currentPos = centerPos; + top.push(points[currentPos]); + while ((currentPos = trace(currentPos, true)) !== null) { + top.push(points[currentPos]); + } + if (centerPos > 0) { + currentPos = centerPos; + while ((currentPos = trace(currentPos, false)) !== null) { + top.push(points[currentPos]); + } + } + + if (top.length > result.length) { + result = top; + } + } + return result; + } + }; + + CVUtils.DILATE = 1; + CVUtils.ERODE = 2; + + CVUtils.dilate = function (inImageWrapper, outImageWrapper) { + var v, + u, + inImageData = inImageWrapper.data, + outImageData = outImageWrapper.data, + height = inImageWrapper.size.y, + width = inImageWrapper.size.x, + sum, + yStart1, + yStart2, + xStart1, + xStart2; + + for (v = 1; v < height - 1; v++) { + for (u = 1; u < width - 1; u++) { + yStart1 = v - 1; + yStart2 = v + 1; + xStart1 = u - 1; + xStart2 = u + 1; + sum = inImageData[yStart1 * width + xStart1] + inImageData[yStart1 * width + xStart2] + inImageData[v * width + u] + inImageData[yStart2 * width + xStart1] + inImageData[yStart2 * width + xStart2]; + outImageData[v * width + u] = sum > 0 ? 1 : 0; + } + } + }; + + CVUtils.erode = function (inImageWrapper, outImageWrapper) { + var v, + u, + inImageData = inImageWrapper.data, + outImageData = outImageWrapper.data, + height = inImageWrapper.size.y, + width = inImageWrapper.size.x, + sum, + yStart1, + yStart2, + xStart1, + xStart2; + + for (v = 1; v < height - 1; v++) { + for (u = 1; u < width - 1; u++) { + yStart1 = v - 1; + yStart2 = v + 1; + xStart1 = u - 1; + xStart2 = u + 1; + sum = inImageData[yStart1 * width + xStart1] + inImageData[yStart1 * width + xStart2] + inImageData[v * width + u] + inImageData[yStart2 * width + xStart1] + inImageData[yStart2 * width + xStart2]; + outImageData[v * width + u] = sum === 5 ? 1 : 0; + } + } + }; + + CVUtils.subtract = function (aImageWrapper, bImageWrapper, resultImageWrapper) { + if (!resultImageWrapper) { + resultImageWrapper = aImageWrapper; + } + var length = aImageWrapper.data.length, + aImageData = aImageWrapper.data, + bImageData = bImageWrapper.data, + cImageData = resultImageWrapper.data; + + while (length--) { + cImageData[length] = aImageData[length] - bImageData[length]; + } + }; + + CVUtils.bitwiseOr = function (aImageWrapper, bImageWrapper, resultImageWrapper) { + if (!resultImageWrapper) { + resultImageWrapper = aImageWrapper; + } + var length = aImageWrapper.data.length, + aImageData = aImageWrapper.data, + bImageData = bImageWrapper.data, + cImageData = resultImageWrapper.data; + + while (length--) { + cImageData[length] = aImageData[length] || bImageData[length]; + } + }; + + CVUtils.countNonZero = function (imageWrapper) { + var length = imageWrapper.data.length, + data = imageWrapper.data, + sum = 0; + + while (length--) { + sum += data[length]; + } + return sum; + }; + + CVUtils.topGeneric = function (list, top, scoreFunc) { + var i, + minIdx = 0, + min = 0, + queue = [], + score, + hit, + pos; + + for (i = 0; i < top; i++) { + queue[i] = { + score: 0, + item: null + }; + } + + for (i = 0; i < list.length; i++) { + score = scoreFunc.apply(this, [list[i]]); + if (score > min) { + hit = queue[minIdx]; + hit.score = score; + hit.item = list[i]; + min = Number.MAX_VALUE; + for (pos = 0; pos < top; pos++) { + if (queue[pos].score < min) { + min = queue[pos].score; + minIdx = pos; + } + } + } + } + + return queue; + }; + + CVUtils.grayArrayFromImage = function (htmlImage, offsetX, ctx, array) { + ctx.drawImage(htmlImage, offsetX, 0, htmlImage.width, htmlImage.height); + var ctxData = ctx.getImageData(offsetX, 0, htmlImage.width, htmlImage.height).data; + CVUtils.computeGray(ctxData, array); + }; + + CVUtils.grayArrayFromContext = function (ctx, size, offset, array) { + var ctxData = ctx.getImageData(offset.x, offset.y, size.x, size.y).data; + CVUtils.computeGray(ctxData, array); + }; + + CVUtils.grayAndHalfSampleFromCanvasData = function (canvasData, size, outArray) { + var topRowIdx = 0; + var bottomRowIdx = size.x; + var endIdx = Math.floor(canvasData.length / 4); + var outWidth = size.x / 2; + var outImgIdx = 0; + var inWidth = size.x; + var i; + + while (bottomRowIdx < endIdx) { + for (i = 0; i < outWidth; i++) { + outArray[outImgIdx] = Math.floor((0.299 * canvasData[topRowIdx * 4 + 0] + 0.587 * canvasData[topRowIdx * 4 + 1] + 0.114 * canvasData[topRowIdx * 4 + 2] + (0.299 * canvasData[(topRowIdx + 1) * 4 + 0] + 0.587 * canvasData[(topRowIdx + 1) * 4 + 1] + 0.114 * canvasData[(topRowIdx + 1) * 4 + 2]) + (0.299 * canvasData[bottomRowIdx * 4 + 0] + 0.587 * canvasData[bottomRowIdx * 4 + 1] + 0.114 * canvasData[bottomRowIdx * 4 + 2]) + (0.299 * canvasData[(bottomRowIdx + 1) * 4 + 0] + 0.587 * canvasData[(bottomRowIdx + 1) * 4 + 1] + 0.114 * canvasData[(bottomRowIdx + 1) * 4 + 2])) / 4); + outImgIdx++; + topRowIdx = topRowIdx + 2; + bottomRowIdx = bottomRowIdx + 2; + } + topRowIdx = topRowIdx + inWidth; + bottomRowIdx = bottomRowIdx + inWidth; + } + }; + + CVUtils.computeGray = function (imageData, outArray, config) { + var l = imageData.length / 4 | 0, + i, + singleChannel = config && config.singleChannel === true; + + if (singleChannel) { + for (i = 0; i < l; i++) { + outArray[i] = imageData[i * 4 + 0]; + } + } else { + for (i = 0; i < l; i++) { + outArray[i] = Math.floor(0.299 * imageData[i * 4 + 0] + 0.587 * imageData[i * 4 + 1] + 0.114 * imageData[i * 4 + 2]); + } + } + }; + + CVUtils.loadImageArray = function (src, callback, canvas) { + if (!canvas) { + canvas = document.createElement('canvas'); + } + var img = new Image(); + img.callback = callback; + img.onload = function () { + canvas.width = this.width; + canvas.height = this.height; + var ctx = canvas.getContext('2d'); + ctx.drawImage(this, 0, 0); + var array = new Uint8Array(this.width * this.height); + ctx.drawImage(this, 0, 0); + var data = ctx.getImageData(0, 0, this.width, this.height).data; + CVUtils.computeGray(data, array); + this.callback(array, { + x: this.width, + y: this.height + }, this); + }; + img.src = src; + }; + + /** + * @param inImg {ImageWrapper} input image to be sampled + * @param outImg {ImageWrapper} to be stored in + */ + CVUtils.halfSample = function (inImgWrapper, outImgWrapper) { + var inImg = inImgWrapper.data; + var inWidth = inImgWrapper.size.x; + var outImg = outImgWrapper.data; + var topRowIdx = 0; + var bottomRowIdx = inWidth; + var endIdx = inImg.length; + var outWidth = inWidth / 2; + var outImgIdx = 0; + while (bottomRowIdx < endIdx) { + for (var i = 0; i < outWidth; i++) { + outImg[outImgIdx] = Math.floor((inImg[topRowIdx] + inImg[topRowIdx + 1] + inImg[bottomRowIdx] + inImg[bottomRowIdx + 1]) / 4); + outImgIdx++; + topRowIdx = topRowIdx + 2; + bottomRowIdx = bottomRowIdx + 2; + } + topRowIdx = topRowIdx + inWidth; + bottomRowIdx = bottomRowIdx + inWidth; + } + }; + + CVUtils.hsv2rgb = function (hsv, rgb) { + var h = hsv[0], + s = hsv[1], + v = hsv[2], + c = v * s, + x = c * (1 - Math.abs(h / 60 % 2 - 1)), + m = v - c, + r = 0, + g = 0, + b = 0; + + rgb = rgb || [0, 0, 0]; + + if (h < 60) { + r = c; + g = x; + } else if (h < 120) { + r = x; + g = c; + } else if (h < 180) { + g = c; + b = x; + } else if (h < 240) { + g = x; + b = c; + } else if (h < 300) { + r = x; + b = c; + } else if (h < 360) { + r = c; + b = x; + } + rgb[0] = (r + m) * 255 | 0; + rgb[1] = (g + m) * 255 | 0; + rgb[2] = (b + m) * 255 | 0; + return rgb; + }; + + CVUtils._computeDivisors = function (n) { + var largeDivisors = [], + divisors = [], + i; + + for (i = 1; i < Math.sqrt(n) + 1; i++) { + if (n % i === 0) { + divisors.push(i); + if (i !== n / i) { + largeDivisors.unshift(Math.floor(n / i)); + } + } + } + return divisors.concat(largeDivisors); + }; + + CVUtils._computeIntersection = function (arr1, arr2) { + var i = 0, + j = 0, + result = []; + + while (i < arr1.length && j < arr2.length) { + if (arr1[i] === arr2[j]) { + result.push(arr1[i]); + i++; + j++; + } else if (arr1[i] > arr2[j]) { + j++; + } else { + i++; + } + } + return result; + }; + + CVUtils.calculatePatchSize = function (patchSize, imgSize) { + var divisorsX = this._computeDivisors(imgSize.x), + divisorsY = this._computeDivisors(imgSize.y), + wideSide = Math.max(imgSize.x, imgSize.y), + common = this._computeIntersection(divisorsX, divisorsY), + nrOfPatchesList = [8, 10, 15, 20, 32, 60, 80], + nrOfPatchesMap = { + "x-small": 5, + "small": 4, + "medium": 3, + "large": 2, + "x-large": 1 + }, + nrOfPatchesIdx = nrOfPatchesMap[patchSize] || nrOfPatchesMap.medium, + nrOfPatches = nrOfPatchesList[nrOfPatchesIdx], + desiredPatchSize = Math.floor(wideSide / nrOfPatches), + optimalPatchSize; + + function findPatchSizeForDivisors(divisors) { + var i = 0, + found = divisors[Math.floor(divisors.length / 2)]; + + while (i < divisors.length - 1 && divisors[i] < desiredPatchSize) { + i++; + } + if (i > 0) { + if (Math.abs(divisors[i] - desiredPatchSize) > Math.abs(divisors[i - 1] - desiredPatchSize)) { + found = divisors[i - 1]; + } else { + found = divisors[i]; + } + } + if (desiredPatchSize / found < nrOfPatchesList[nrOfPatchesIdx + 1] / nrOfPatchesList[nrOfPatchesIdx] && desiredPatchSize / found > nrOfPatchesList[nrOfPatchesIdx - 1] / nrOfPatchesList[nrOfPatchesIdx]) { + return { x: found, y: found }; + } + return null; + } + + optimalPatchSize = findPatchSizeForDivisors(common); + if (!optimalPatchSize) { + optimalPatchSize = findPatchSizeForDivisors(this._computeDivisors(wideSide)); + if (!optimalPatchSize) { + optimalPatchSize = findPatchSizeForDivisors(this._computeDivisors(desiredPatchSize * nrOfPatches)); + } + } + return optimalPatchSize; + }; + + CVUtils._parseCSSDimensionValues = function (value) { + var dimension = { + value: parseFloat(value), + unit: value.indexOf("%") === value.length - 1 ? "%" : "%" + }; + + return dimension; + }; + + CVUtils._dimensionsConverters = { + top: function top(dimension, context) { + if (dimension.unit === "%") { + return Math.floor(context.height * (dimension.value / 100)); + } + }, + right: function right(dimension, context) { + if (dimension.unit === "%") { + return Math.floor(context.width - context.width * (dimension.value / 100)); + } + }, + bottom: function bottom(dimension, context) { + if (dimension.unit === "%") { + return Math.floor(context.height - context.height * (dimension.value / 100)); + } + }, + left: function left(dimension, context) { + if (dimension.unit === "%") { + return Math.floor(context.width * (dimension.value / 100)); + } + } + }; + + CVUtils.computeImageArea = function (inputWidth, inputHeight, area) { + var context = { width: inputWidth, height: inputHeight }; + + var parsedArea = Object.keys(area).reduce(function (result, key) { + var value = area[key], + parsed = CVUtils._parseCSSDimensionValues(value), + calculated = CVUtils._dimensionsConverters[key](parsed, context); + + result[key] = calculated; + return result; + }, {}); + + return { + sx: parsedArea.left, + sy: parsedArea.top, + sw: parsedArea.right - parsedArea.left, + sh: parsedArea.bottom - parsedArea.top + }; + }; + + exports['default'] = CVUtils; + module.exports = exports['default']; + +/***/ }, +/* 6 */ +/***/ function(module, exports, __webpack_require__) { + + 'use strict'; + + Object.defineProperty(exports, '__esModule', { + value: true + }); + + var _glMatrix = __webpack_require__(7); + + /** + * Creates a cluster for grouping similar orientations of datapoints + */ + exports['default'] = { + create: function create(point, threshold) { + var points = [], + center = { + rad: 0, + vec: _glMatrix.vec2.clone([0, 0]) + }, + pointMap = {}; + + function init() { + _add(point); + updateCenter(); + } + + function _add(pointToAdd) { + pointMap[pointToAdd.id] = pointToAdd; + points.push(pointToAdd); + } + + function updateCenter() { + var i, + sum = 0; + for (i = 0; i < points.length; i++) { + sum += points[i].rad; + } + center.rad = sum / points.length; + center.vec = _glMatrix.vec2.clone([Math.cos(center.rad), Math.sin(center.rad)]); + } + + init(); + + return { + add: function add(pointToAdd) { + if (!pointMap[pointToAdd.id]) { + _add(pointToAdd); + updateCenter(); + } + }, + fits: function fits(otherPoint) { + // check cosine similarity to center-angle + var similarity = Math.abs(_glMatrix.vec2.dot(otherPoint.point.vec, center.vec)); + if (similarity > threshold) { + return true; + } + return false; + }, + getPoints: function getPoints() { + return points; + }, + getCenter: function getCenter() { + return center; + } + }; + }, + createPoint: function createPoint(newPoint, id, property) { + return { + rad: newPoint[property], + point: newPoint, + id: id + }; + } + }; + module.exports = exports['default']; + +/***/ }, +/* 7 */ +/***/ function(module, exports) { + + module.exports = require("gl-matrix"); + +/***/ }, +/* 8 */ +/***/ function(module, exports) { + + "use strict"; + + Object.defineProperty(exports, "__esModule", { + value: true + }); + exports["default"] = { + init: function init(arr, val) { + var l = arr.length; + while (l--) { + arr[l] = val; + } + }, + + /** + * Shuffles the content of an array + * @return {Array} the array itself shuffled + */ + shuffle: function shuffle(arr) { + var i = arr.length - 1, + j, + x; + for (i; i >= 0; i--) { + j = Math.floor(Math.random() * i); + x = arr[i]; + arr[i] = arr[j]; + arr[j] = x; + } + return arr; + }, + + toPointList: function toPointList(arr) { + var i, + j, + row = [], + rows = []; + for (i = 0; i < arr.length; i++) { + row = []; + for (j = 0; j < arr[i].length; j++) { + row[j] = arr[i][j]; + } + rows[i] = "[" + row.join(",") + "]"; + } + return "[" + rows.join(",\r\n") + "]"; + }, + + /** + * returns the elements which's score is bigger than the threshold + * @return {Array} the reduced array + */ + threshold: function threshold(arr, _threshold, scoreFunc) { + var i, + queue = []; + for (i = 0; i < arr.length; i++) { + if (scoreFunc.apply(arr, [arr[i]]) >= _threshold) { + queue.push(arr[i]); + } + } + return queue; + }, + + maxIndex: function maxIndex(arr) { + var i, + max = 0; + for (i = 0; i < arr.length; i++) { + if (arr[i] > arr[max]) { + max = i; + } + } + return max; + }, + + max: function max(arr) { + var i, + max = 0; + for (i = 0; i < arr.length; i++) { + if (arr[i] > max) { + max = arr[i]; + } + } + return max; + }, + + sum: function sum(arr) { + var length = arr.length, + sum = 0; + + while (length--) { + sum += arr[length]; + } + return sum; + } + }; + module.exports = exports["default"]; + +/***/ }, +/* 9 */ +/***/ function(module, exports, __webpack_require__) { + + /* WEBPACK VAR INJECTION */(function(global) {'use strict'; + + Object.defineProperty(exports, '__esModule', { + value: true + }); + + function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; } + + var _image_wrapper = __webpack_require__(3); + + var _image_wrapper2 = _interopRequireDefault(_image_wrapper); + + var _cv_utils = __webpack_require__(5); + + var _cv_utils2 = _interopRequireDefault(_cv_utils); + + var _rasterizer = __webpack_require__(10); + + var _rasterizer2 = _interopRequireDefault(_rasterizer); + + var _tracer = __webpack_require__(11); + + var _tracer2 = _interopRequireDefault(_tracer); + + var _skeletonizer2 = __webpack_require__(12); + + var _skeletonizer3 = _interopRequireDefault(_skeletonizer2); + + var _array_helper = __webpack_require__(8); + + var _array_helper2 = _interopRequireDefault(_array_helper); + + var _image_debug = __webpack_require__(13); + + var _image_debug2 = _interopRequireDefault(_image_debug); + + var _glMatrix = __webpack_require__(7); + + var _glMatrix2 = _interopRequireDefault(_glMatrix); + + var _config, + _currentImageWrapper, + _skelImageWrapper, + _subImageWrapper, + _labelImageWrapper, + _patchGrid, + _patchLabelGrid, + _imageToPatchGrid, + _binaryImageWrapper, + _patchSize, + _canvasContainer = { + ctx: { + binary: null + }, + dom: { + binary: null + } + }, + _numPatches = { x: 0, y: 0 }, + _inputImageWrapper, + _skeletonizer, + vec2 = _glMatrix2['default'].vec2, + mat2 = _glMatrix2['default'].mat2; + + function initBuffers() { + var skeletonImageData; + + if (_config.halfSample) { + _currentImageWrapper = new _image_wrapper2['default']({ + x: _inputImageWrapper.size.x / 2 | 0, + y: _inputImageWrapper.size.y / 2 | 0 + }); + } else { + _currentImageWrapper = _inputImageWrapper; + } + + _patchSize = _cv_utils2['default'].calculatePatchSize(_config.patchSize, _currentImageWrapper.size); + + _numPatches.x = _currentImageWrapper.size.x / _patchSize.x | 0; + _numPatches.y = _currentImageWrapper.size.y / _patchSize.y | 0; + + _binaryImageWrapper = new _image_wrapper2['default'](_currentImageWrapper.size, undefined, Uint8Array, false); + + _labelImageWrapper = new _image_wrapper2['default'](_patchSize, undefined, Array, true); + + skeletonImageData = new ArrayBuffer(64 * 1024); + _subImageWrapper = new _image_wrapper2['default'](_patchSize, new Uint8Array(skeletonImageData, 0, _patchSize.x * _patchSize.y)); + _skelImageWrapper = new _image_wrapper2['default'](_patchSize, new Uint8Array(skeletonImageData, _patchSize.x * _patchSize.y * 3, _patchSize.x * _patchSize.y), undefined, true); + _skeletonizer = (0, _skeletonizer3['default'])(typeof window !== 'undefined' ? window : typeof self !== 'undefined' ? self : global, { + size: _patchSize.x + }, skeletonImageData); + + _imageToPatchGrid = new _image_wrapper2['default']({ + x: _currentImageWrapper.size.x / _subImageWrapper.size.x | 0, + y: _currentImageWrapper.size.y / _subImageWrapper.size.y | 0 + }, undefined, Array, true); + _patchGrid = new _image_wrapper2['default'](_imageToPatchGrid.size, undefined, undefined, true); + _patchLabelGrid = new _image_wrapper2['default'](_imageToPatchGrid.size, undefined, Int32Array, true); + } + + function initCanvas() { + if (_config.useWorker || typeof document === 'undefined') { + return; + } + _canvasContainer.dom.binary = document.createElement("canvas"); + _canvasContainer.dom.binary.className = "binaryBuffer"; + if (_config.showCanvas === true) { + document.querySelector("#debug").appendChild(_canvasContainer.dom.binary); + } + _canvasContainer.ctx.binary = _canvasContainer.dom.binary.getContext("2d"); + _canvasContainer.dom.binary.width = _binaryImageWrapper.size.x; + _canvasContainer.dom.binary.height = _binaryImageWrapper.size.y; + } + + /** + * Creates a bounding box which encloses all the given patches + * @returns {Array} The minimal bounding box + */ + function boxFromPatches(patches) { + var overAvg, + i, + j, + patch, + transMat, + minx = _binaryImageWrapper.size.x, + miny = _binaryImageWrapper.size.y, + maxx = -_binaryImageWrapper.size.x, + maxy = -_binaryImageWrapper.size.y, + box, + scale; + + // draw all patches which are to be taken into consideration + overAvg = 0; + for (i = 0; i < patches.length; i++) { + patch = patches[i]; + overAvg += patch.rad; + if (_config.showPatches) { + _image_debug2['default'].drawRect(patch.pos, _subImageWrapper.size, _canvasContainer.ctx.binary, { color: "red" }); + } + } + + overAvg /= patches.length; + overAvg = (overAvg * 180 / Math.PI + 90) % 180 - 90; + if (overAvg < 0) { + overAvg += 180; + } + + overAvg = (180 - overAvg) * Math.PI / 180; + transMat = mat2.clone([Math.cos(overAvg), Math.sin(overAvg), -Math.sin(overAvg), Math.cos(overAvg)]); + + // iterate over patches and rotate by angle + for (i = 0; i < patches.length; i++) { + patch = patches[i]; + for (j = 0; j < 4; j++) { + vec2.transformMat2(patch.box[j], patch.box[j], transMat); + } + + if (_config.boxFromPatches.showTransformed) { + _image_debug2['default'].drawPath(patch.box, { x: 0, y: 1 }, _canvasContainer.ctx.binary, { color: '#99ff00', lineWidth: 2 }); + } + } + + // find bounding box + for (i = 0; i < patches.length; i++) { + patch = patches[i]; + for (j = 0; j < 4; j++) { + if (patch.box[j][0] < minx) { + minx = patch.box[j][0]; + } + if (patch.box[j][0] > maxx) { + maxx = patch.box[j][0]; + } + if (patch.box[j][1] < miny) { + miny = patch.box[j][1]; + } + if (patch.box[j][1] > maxy) { + maxy = patch.box[j][1]; + } + } + } + + box = [[minx, miny], [maxx, miny], [maxx, maxy], [minx, maxy]]; + + if (_config.boxFromPatches.showTransformedBox) { + _image_debug2['default'].drawPath(box, { x: 0, y: 1 }, _canvasContainer.ctx.binary, { color: '#ff0000', lineWidth: 2 }); + } + + scale = _config.halfSample ? 2 : 1; + // reverse rotation; + transMat = mat2.invert(transMat, transMat); + for (j = 0; j < 4; j++) { + vec2.transformMat2(box[j], box[j], transMat); + } + + if (_config.boxFromPatches.showBB) { + _image_debug2['default'].drawPath(box, { x: 0, y: 1 }, _canvasContainer.ctx.binary, { color: '#ff0000', lineWidth: 2 }); + } + + for (j = 0; j < 4; j++) { + vec2.scale(box[j], box[j], scale); + } + + return box; + } + + /** + * Creates a binary image of the current image + */ + function binarizeImage() { + _cv_utils2['default'].otsuThreshold(_currentImageWrapper, _binaryImageWrapper); + _binaryImageWrapper.zeroBorder(); + if (_config.showCanvas) { + _binaryImageWrapper.show(_canvasContainer.dom.binary, 255); + } + } + + /** + * Iterate over the entire image + * extract patches + */ + function findPatches() { + var i, + j, + x, + y, + moments, + patchesFound = [], + rasterizer, + rasterResult, + patch; + for (i = 0; i < _numPatches.x; i++) { + for (j = 0; j < _numPatches.y; j++) { + x = _subImageWrapper.size.x * i; + y = _subImageWrapper.size.y * j; + + // seperate parts + skeletonize(x, y); + + // Rasterize, find individual bars + _skelImageWrapper.zeroBorder(); + _array_helper2['default'].init(_labelImageWrapper.data, 0); + rasterizer = _rasterizer2['default'].create(_skelImageWrapper, _labelImageWrapper); + rasterResult = rasterizer.rasterize(0); + + if (_config.showLabels) { + _labelImageWrapper.overlay(_canvasContainer.dom.binary, Math.floor(360 / rasterResult.count), { x: x, y: y }); + } + + // calculate moments from the skeletonized patch + moments = _labelImageWrapper.moments(rasterResult.count); + + // extract eligible patches + patchesFound = patchesFound.concat(describePatch(moments, [i, j], x, y)); + } + } + + if (_config.showFoundPatches) { + for (i = 0; i < patchesFound.length; i++) { + patch = patchesFound[i]; + _image_debug2['default'].drawRect(patch.pos, _subImageWrapper.size, _canvasContainer.ctx.binary, { color: "#99ff00", lineWidth: 2 }); + } + } + + return patchesFound; + } + + /** + * Finds those connected areas which contain at least 6 patches + * and returns them ordered DESC by the number of contained patches + * @param {Number} maxLabel + */ + function findBiggestConnectedAreas(maxLabel) { + var i, + sum, + labelHist = [], + topLabels = []; + + for (i = 0; i < maxLabel; i++) { + labelHist.push(0); + } + sum = _patchLabelGrid.data.length; + while (sum--) { + if (_patchLabelGrid.data[sum] > 0) { + labelHist[_patchLabelGrid.data[sum] - 1]++; + } + } + + labelHist = labelHist.map(function (val, idx) { + return { + val: val, + label: idx + 1 + }; + }); + + labelHist.sort(function (a, b) { + return b.val - a.val; + }); + + // extract top areas with at least 6 patches present + topLabels = labelHist.filter(function (el) { + return el.val >= 5; + }); + + return topLabels; + } + + /** + * + */ + function findBoxes(topLabels, maxLabel) { + var i, + j, + sum, + patches = [], + patch, + box, + boxes = [], + hsv = [0, 1, 1], + rgb = [0, 0, 0]; + + for (i = 0; i < topLabels.length; i++) { + sum = _patchLabelGrid.data.length; + patches.length = 0; + while (sum--) { + if (_patchLabelGrid.data[sum] === topLabels[i].label) { + patch = _imageToPatchGrid.data[sum]; + patches.push(patch); + } + } + box = boxFromPatches(patches); + if (box) { + boxes.push(box); + + // draw patch-labels if requested + if (_config.showRemainingPatchLabels) { + for (j = 0; j < patches.length; j++) { + patch = patches[j]; + hsv[0] = topLabels[i].label / (maxLabel + 1) * 360; + _cv_utils2['default'].hsv2rgb(hsv, rgb); + _image_debug2['default'].drawRect(patch.pos, _subImageWrapper.size, _canvasContainer.ctx.binary, { color: "rgb(" + rgb.join(",") + ")", lineWidth: 2 }); + } + } + } + } + return boxes; + } + + /** + * Find similar moments (via cluster) + * @param {Object} moments + */ + function similarMoments(moments) { + var clusters = _cv_utils2['default'].cluster(moments, 0.90); + var topCluster = _cv_utils2['default'].topGeneric(clusters, 1, function (e) { + return e.getPoints().length; + }); + var points = [], + result = []; + if (topCluster.length === 1) { + points = topCluster[0].item.getPoints(); + for (var i = 0; i < points.length; i++) { + result.push(points[i].point); + } + } + return result; + } + + function skeletonize(x, y) { + _binaryImageWrapper.subImageAsCopy(_subImageWrapper, _cv_utils2['default'].imageRef(x, y)); + _skeletonizer.skeletonize(); + + // Show skeleton if requested + if (_config.showSkeleton) { + _skelImageWrapper.overlay(_canvasContainer.dom.binary, 360, _cv_utils2['default'].imageRef(x, y)); + } + } + + /** + * Extracts and describes those patches which seem to contain a barcode pattern + * @param {Array} moments + * @param {Object} patchPos, + * @param {Number} x + * @param {Number} y + * @returns {Array} list of patches + */ + function describePatch(moments, patchPos, x, y) { + var k, + avg, + eligibleMoments = [], + matchingMoments, + patch, + patchesFound = [], + minComponentWeight = Math.ceil(_patchSize.x / 3); + + if (moments.length >= 2) { + // only collect moments which's area covers at least minComponentWeight pixels. + for (k = 0; k < moments.length; k++) { + if (moments[k].m00 > minComponentWeight) { + eligibleMoments.push(moments[k]); + } + } + + // if at least 2 moments are found which have at least minComponentWeights covered + if (eligibleMoments.length >= 2) { + matchingMoments = similarMoments(eligibleMoments); + avg = 0; + // determine the similarity of the moments + for (k = 0; k < matchingMoments.length; k++) { + avg += matchingMoments[k].rad; + } + + // Only two of the moments are allowed not to fit into the equation + // add the patch to the set + if (matchingMoments.length > 1 && matchingMoments.length >= eligibleMoments.length / 4 * 3 && matchingMoments.length > moments.length / 4) { + avg /= matchingMoments.length; + patch = { + index: patchPos[1] * _numPatches.x + patchPos[0], + pos: { + x: x, + y: y + }, + box: [vec2.clone([x, y]), vec2.clone([x + _subImageWrapper.size.x, y]), vec2.clone([x + _subImageWrapper.size.x, y + _subImageWrapper.size.y]), vec2.clone([x, y + _subImageWrapper.size.y])], + moments: matchingMoments, + rad: avg, + vec: vec2.clone([Math.cos(avg), Math.sin(avg)]) + }; + patchesFound.push(patch); + } + } + } + return patchesFound; + } + + /** + * finds patches which are connected and share the same orientation + * @param {Object} patchesFound + */ + function rasterizeAngularSimilarity(patchesFound) { + var label = 0, + threshold = 0.95, + currIdx = 0, + j, + patch, + hsv = [0, 1, 1], + rgb = [0, 0, 0]; + + function notYetProcessed() { + var i; + for (i = 0; i < _patchLabelGrid.data.length; i++) { + if (_patchLabelGrid.data[i] === 0 && _patchGrid.data[i] === 1) { + return i; + } + } + return _patchLabelGrid.length; + } + + function trace(currentIdx) { + var x, + y, + currentPatch, + idx, + dir, + current = { + x: currentIdx % _patchLabelGrid.size.x, + y: currentIdx / _patchLabelGrid.size.x | 0 + }, + similarity; + + if (currentIdx < _patchLabelGrid.data.length) { + currentPatch = _imageToPatchGrid.data[currentIdx]; + // assign label + _patchLabelGrid.data[currentIdx] = label; + for (dir = 0; dir < _tracer2['default'].searchDirections.length; dir++) { + y = current.y + _tracer2['default'].searchDirections[dir][0]; + x = current.x + _tracer2['default'].searchDirections[dir][1]; + idx = y * _patchLabelGrid.size.x + x; + + // continue if patch empty + if (_patchGrid.data[idx] === 0) { + _patchLabelGrid.data[idx] = Number.MAX_VALUE; + continue; + } + + if (_patchLabelGrid.data[idx] === 0) { + similarity = Math.abs(vec2.dot(_imageToPatchGrid.data[idx].vec, currentPatch.vec)); + if (similarity > threshold) { + trace(idx); + } + } + } + } + } + + // prepare for finding the right patches + _array_helper2['default'].init(_patchGrid.data, 0); + _array_helper2['default'].init(_patchLabelGrid.data, 0); + _array_helper2['default'].init(_imageToPatchGrid.data, null); + + for (j = 0; j < patchesFound.length; j++) { + patch = patchesFound[j]; + _imageToPatchGrid.data[patch.index] = patch; + _patchGrid.data[patch.index] = 1; + } + + // rasterize the patches found to determine area + _patchGrid.zeroBorder(); + + while ((currIdx = notYetProcessed()) < _patchLabelGrid.data.length) { + label++; + trace(currIdx); + } + + // draw patch-labels if requested + if (_config.showPatchLabels) { + for (j = 0; j < _patchLabelGrid.data.length; j++) { + if (_patchLabelGrid.data[j] > 0 && _patchLabelGrid.data[j] <= label) { + patch = _imageToPatchGrid.data[j]; + hsv[0] = _patchLabelGrid.data[j] / (label + 1) * 360; + _cv_utils2['default'].hsv2rgb(hsv, rgb); + _image_debug2['default'].drawRect(patch.pos, _subImageWrapper.size, _canvasContainer.ctx.binary, { color: "rgb(" + rgb.join(",") + ")", lineWidth: 2 }); + } + } + } + + return label; + } + + exports['default'] = { + init: function init(inputImageWrapper, config) { + _config = config; + _inputImageWrapper = inputImageWrapper; + + initBuffers(); + initCanvas(); + }, + + locate: function locate() { + var patchesFound, topLabels, boxes; + + if (_config.halfSample) { + _cv_utils2['default'].halfSample(_inputImageWrapper, _currentImageWrapper); + } + + binarizeImage(); + patchesFound = findPatches(); + // return unless 5% or more patches are found + if (patchesFound.length < _numPatches.x * _numPatches.y * 0.05) { + return null; + } + + // rasterrize area by comparing angular similarity; + var maxLabel = rasterizeAngularSimilarity(patchesFound); + if (maxLabel < 1) { + return null; + } + + // search for area with the most patches (biggest connected area) + topLabels = findBiggestConnectedAreas(maxLabel); + if (topLabels.length === 0) { + return null; + } + + boxes = findBoxes(topLabels, maxLabel); + return boxes; + }, + + checkImageConstraints: function checkImageConstraints(inputStream, config) { + var patchSize, + width = inputStream.getWidth(), + height = inputStream.getHeight(), + halfSample = config.halfSample ? 0.5 : 1, + size, + area; + + // calculate width and height based on area + if (inputStream.getConfig().area) { + area = _cv_utils2['default'].computeImageArea(width, height, inputStream.getConfig().area); + inputStream.setTopRight({ x: area.sx, y: area.sy }); + inputStream.setCanvasSize({ x: width, y: height }); + width = area.sw; + height = area.sh; + } + + size = { + x: Math.floor(width * halfSample), + y: Math.floor(height * halfSample) + }; + + patchSize = _cv_utils2['default'].calculatePatchSize(config.patchSize, size); + console.log("Patch-Size: " + JSON.stringify(patchSize)); + + inputStream.setWidth(Math.floor(Math.floor(size.x / patchSize.x) * (1 / halfSample) * patchSize.x)); + inputStream.setHeight(Math.floor(Math.floor(size.y / patchSize.y) * (1 / halfSample) * patchSize.y)); + + if (inputStream.getWidth() % patchSize.x === 0 && inputStream.getHeight() % patchSize.y === 0) { + return true; + } + + throw new Error("Image dimensions do not comply with the current settings: Width (" + width + " )and height (" + height + ") must a multiple of " + patchSize.x); + } + }; + module.exports = exports['default']; + /* WEBPACK VAR INJECTION */}.call(exports, (function() { return this; }()))) + +/***/ }, +/* 10 */ +/***/ function(module, exports, __webpack_require__) { + + "use strict"; + + Object.defineProperty(exports, "__esModule", { + value: true + }); + + function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; } + + var _tracer = __webpack_require__(11); + + var _tracer2 = _interopRequireDefault(_tracer); + + /** + * http://www.codeproject.com/Tips/407172/Connected-Component-Labeling-and-Vectorization + */ + var Rasterizer = { + createContour2D: function createContour2D() { + return { + dir: null, + index: null, + firstVertex: null, + insideContours: null, + nextpeer: null, + prevpeer: null + }; + }, + CONTOUR_DIR: { + CW_DIR: 0, + CCW_DIR: 1, + UNKNOWN_DIR: 2 + }, + DIR: { + OUTSIDE_EDGE: -32767, + INSIDE_EDGE: -32766 + }, + create: function create(imageWrapper, labelWrapper) { + var imageData = imageWrapper.data, + labelData = labelWrapper.data, + width = imageWrapper.size.x, + height = imageWrapper.size.y, + tracer = _tracer2["default"].create(imageWrapper, labelWrapper); + + return { + rasterize: function rasterize(depthlabel) { + var color, + bc, + lc, + labelindex, + cx, + cy, + colorMap = [], + vertex, + p, + cc, + sc, + pos, + connectedCount = 0, + i; + + for (i = 0; i < 400; i++) { + colorMap[i] = 0; + } + + colorMap[0] = imageData[0]; + cc = null; + for (cy = 1; cy < height - 1; cy++) { + labelindex = 0; + bc = colorMap[0]; + for (cx = 1; cx < width - 1; cx++) { + pos = cy * width + cx; + if (labelData[pos] === 0) { + color = imageData[pos]; + if (color !== bc) { + if (labelindex === 0) { + lc = connectedCount + 1; + colorMap[lc] = color; + bc = color; + vertex = tracer.contourTracing(cy, cx, lc, color, Rasterizer.DIR.OUTSIDE_EDGE); + if (vertex !== null) { + connectedCount++; + labelindex = lc; + p = Rasterizer.createContour2D(); + p.dir = Rasterizer.CONTOUR_DIR.CW_DIR; + p.index = labelindex; + p.firstVertex = vertex; + p.nextpeer = cc; + p.insideContours = null; + if (cc !== null) { + cc.prevpeer = p; + } + cc = p; + } + } else { + vertex = tracer.contourTracing(cy, cx, Rasterizer.DIR.INSIDE_EDGE, color, labelindex); + if (vertex !== null) { + p = Rasterizer.createContour2D(); + p.firstVertex = vertex; + p.insideContours = null; + if (depthlabel === 0) { + p.dir = Rasterizer.CONTOUR_DIR.CCW_DIR; + } else { + p.dir = Rasterizer.CONTOUR_DIR.CW_DIR; + } + p.index = depthlabel; + sc = cc; + while (sc !== null && sc.index !== labelindex) { + sc = sc.nextpeer; + } + if (sc !== null) { + p.nextpeer = sc.insideContours; + if (sc.insideContours !== null) { + sc.insideContours.prevpeer = p; + } + sc.insideContours = p; + } + } + } + } else { + labelData[pos] = labelindex; + } + } else if (labelData[pos] === Rasterizer.DIR.OUTSIDE_EDGE || labelData[pos] === Rasterizer.DIR.INSIDE_EDGE) { + labelindex = 0; + if (labelData[pos] === Rasterizer.DIR.INSIDE_EDGE) { + bc = imageData[pos]; + } else { + bc = colorMap[0]; + } + } else { + labelindex = labelData[pos]; + bc = colorMap[labelindex]; + } + } + } + sc = cc; + while (sc !== null) { + sc.index = depthlabel; + sc = sc.nextpeer; + } + return { + cc: cc, + count: connectedCount + }; + }, + debug: { + drawContour: function drawContour(canvas, firstContour) { + var ctx = canvas.getContext("2d"), + pq = firstContour, + iq, + q, + p; + + ctx.strokeStyle = "red"; + ctx.fillStyle = "red"; + ctx.lineWidth = 1; + + if (pq !== null) { + iq = pq.insideContours; + } else { + iq = null; + } + + while (pq !== null) { + if (iq !== null) { + q = iq; + iq = iq.nextpeer; + } else { + q = pq; + pq = pq.nextpeer; + if (pq !== null) { + iq = pq.insideContours; + } else { + iq = null; + } + } + + switch (q.dir) { + case Rasterizer.CONTOUR_DIR.CW_DIR: + ctx.strokeStyle = "red"; + break; + case Rasterizer.CONTOUR_DIR.CCW_DIR: + ctx.strokeStyle = "blue"; + break; + case Rasterizer.CONTOUR_DIR.UNKNOWN_DIR: + ctx.strokeStyle = "green"; + break; + } + + p = q.firstVertex; + ctx.beginPath(); + ctx.moveTo(p.x, p.y); + do { + p = p.next; + ctx.lineTo(p.x, p.y); + } while (p !== q.firstVertex); + ctx.stroke(); + } + } + } + }; + } + }; + + exports["default"] = Rasterizer; + module.exports = exports["default"]; + +/***/ }, +/* 11 */ +/***/ function(module, exports) { + + /** + * http://www.codeproject.com/Tips/407172/Connected-Component-Labeling-and-Vectorization + */ + "use strict"; + + Object.defineProperty(exports, "__esModule", { + value: true + }); + var Tracer = { + searchDirections: [[0, 1], [1, 1], [1, 0], [1, -1], [0, -1], [-1, -1], [-1, 0], [-1, 1]], + create: function create(imageWrapper, labelWrapper) { + var imageData = imageWrapper.data, + labelData = labelWrapper.data, + searchDirections = this.searchDirections, + width = imageWrapper.size.x, + pos; + + function _trace(current, color, label, edgelabel) { + var i, y, x; + + for (i = 0; i < 7; i++) { + y = current.cy + searchDirections[current.dir][0]; + x = current.cx + searchDirections[current.dir][1]; + pos = y * width + x; + if (imageData[pos] === color && (labelData[pos] === 0 || labelData[pos] === label)) { + labelData[pos] = label; + current.cy = y; + current.cx = x; + return true; + } else { + if (labelData[pos] === 0) { + labelData[pos] = edgelabel; + } + current.dir = (current.dir + 1) % 8; + } + } + return false; + } + + function vertex2D(x, y, dir) { + return { + dir: dir, + x: x, + y: y, + next: null, + prev: null + }; + } + + function _contourTracing(sy, sx, label, color, edgelabel) { + var Fv = null, + Cv, + P, + ldir, + current = { + cx: sx, + cy: sy, + dir: 0 + }; + + if (_trace(current, color, label, edgelabel)) { + Fv = vertex2D(sx, sy, current.dir); + Cv = Fv; + ldir = current.dir; + P = vertex2D(current.cx, current.cy, 0); + P.prev = Cv; + Cv.next = P; + P.next = null; + Cv = P; + do { + current.dir = (current.dir + 6) % 8; + _trace(current, color, label, edgelabel); + if (ldir !== current.dir) { + Cv.dir = current.dir; + P = vertex2D(current.cx, current.cy, 0); + P.prev = Cv; + Cv.next = P; + P.next = null; + Cv = P; + } else { + Cv.dir = ldir; + Cv.x = current.cx; + Cv.y = current.cy; + } + ldir = current.dir; + } while (current.cx !== sx || current.cy !== sy); + Fv.prev = Cv.prev; + Cv.prev.next = Fv; + } + return Fv; + } + + return { + trace: function trace(current, color, label, edgelabel) { + return _trace(current, color, label, edgelabel); + }, + contourTracing: function contourTracing(sy, sx, label, color, edgelabel) { + return _contourTracing(sy, sx, label, color, edgelabel); + } + }; + } + }; + + exports["default"] = Tracer; + module.exports = exports["default"]; + +/***/ }, +/* 12 */ +/***/ function(module, exports) { + + /* @preserve ASM BEGIN */ + /* eslint-disable eqeqeq*/ + "use strict"; + + Object.defineProperty(exports, "__esModule", { + value: true + }); + function Skeletonizer(stdlib, foreign, buffer) { + "use asm"; + + var images = new stdlib.Uint8Array(buffer), + size = foreign.size | 0, + imul = stdlib.Math.imul; + + function erode(inImagePtr, outImagePtr) { + inImagePtr = inImagePtr | 0; + outImagePtr = outImagePtr | 0; + + var v = 0, + u = 0, + sum = 0, + yStart1 = 0, + yStart2 = 0, + xStart1 = 0, + xStart2 = 0, + offset = 0; + + for (v = 1; (v | 0) < (size - 1 | 0); v = v + 1 | 0) { + offset = offset + size | 0; + for (u = 1; (u | 0) < (size - 1 | 0); u = u + 1 | 0) { + yStart1 = offset - size | 0; + yStart2 = offset + size | 0; + xStart1 = u - 1 | 0; + xStart2 = u + 1 | 0; + sum = (images[inImagePtr + yStart1 + xStart1 | 0] | 0) + (images[inImagePtr + yStart1 + xStart2 | 0] | 0) + (images[inImagePtr + offset + u | 0] | 0) + (images[inImagePtr + yStart2 + xStart1 | 0] | 0) + (images[inImagePtr + yStart2 + xStart2 | 0] | 0) | 0; + if ((sum | 0) == (5 | 0)) { + images[outImagePtr + offset + u | 0] = 1; + } else { + images[outImagePtr + offset + u | 0] = 0; + } + } + } + return; + } + + function subtract(aImagePtr, bImagePtr, outImagePtr) { + aImagePtr = aImagePtr | 0; + bImagePtr = bImagePtr | 0; + outImagePtr = outImagePtr | 0; + + var length = 0; + + length = imul(size, size) | 0; + + while ((length | 0) > 0) { + length = length - 1 | 0; + images[outImagePtr + length | 0] = (images[aImagePtr + length | 0] | 0) - (images[bImagePtr + length | 0] | 0) | 0; + } + } + + function bitwiseOr(aImagePtr, bImagePtr, outImagePtr) { + aImagePtr = aImagePtr | 0; + bImagePtr = bImagePtr | 0; + outImagePtr = outImagePtr | 0; + + var length = 0; + + length = imul(size, size) | 0; + + while ((length | 0) > 0) { + length = length - 1 | 0; + images[outImagePtr + length | 0] = images[aImagePtr + length | 0] | 0 | (images[bImagePtr + length | 0] | 0) | 0; + } + } + + function countNonZero(imagePtr) { + imagePtr = imagePtr | 0; + + var sum = 0, + length = 0; + + length = imul(size, size) | 0; + + while ((length | 0) > 0) { + length = length - 1 | 0; + sum = (sum | 0) + (images[imagePtr + length | 0] | 0) | 0; + } + + return sum | 0; + } + + function init(imagePtr, value) { + imagePtr = imagePtr | 0; + value = value | 0; + + var length = 0; + + length = imul(size, size) | 0; + + while ((length | 0) > 0) { + length = length - 1 | 0; + images[imagePtr + length | 0] = value; + } + } + + function dilate(inImagePtr, outImagePtr) { + inImagePtr = inImagePtr | 0; + outImagePtr = outImagePtr | 0; + + var v = 0, + u = 0, + sum = 0, + yStart1 = 0, + yStart2 = 0, + xStart1 = 0, + xStart2 = 0, + offset = 0; + + for (v = 1; (v | 0) < (size - 1 | 0); v = v + 1 | 0) { + offset = offset + size | 0; + for (u = 1; (u | 0) < (size - 1 | 0); u = u + 1 | 0) { + yStart1 = offset - size | 0; + yStart2 = offset + size | 0; + xStart1 = u - 1 | 0; + xStart2 = u + 1 | 0; + sum = (images[inImagePtr + yStart1 + xStart1 | 0] | 0) + (images[inImagePtr + yStart1 + xStart2 | 0] | 0) + (images[inImagePtr + offset + u | 0] | 0) + (images[inImagePtr + yStart2 + xStart1 | 0] | 0) + (images[inImagePtr + yStart2 + xStart2 | 0] | 0) | 0; + if ((sum | 0) > (0 | 0)) { + images[outImagePtr + offset + u | 0] = 1; + } else { + images[outImagePtr + offset + u | 0] = 0; + } + } + } + return; + } + + function memcpy(srcImagePtr, dstImagePtr) { + srcImagePtr = srcImagePtr | 0; + dstImagePtr = dstImagePtr | 0; + + var length = 0; + + length = imul(size, size) | 0; + + while ((length | 0) > 0) { + length = length - 1 | 0; + images[dstImagePtr + length | 0] = images[srcImagePtr + length | 0] | 0; + } + } + + function zeroBorder(imagePtr) { + imagePtr = imagePtr | 0; + + var x = 0, + y = 0; + + for (x = 0; (x | 0) < (size - 1 | 0); x = x + 1 | 0) { + images[imagePtr + x | 0] = 0; + images[imagePtr + y | 0] = 0; + y = y + size - 1 | 0; + images[imagePtr + y | 0] = 0; + y = y + 1 | 0; + } + for (x = 0; (x | 0) < (size | 0); x = x + 1 | 0) { + images[imagePtr + y | 0] = 0; + y = y + 1 | 0; + } + } + + function skeletonize() { + var subImagePtr = 0, + erodedImagePtr = 0, + tempImagePtr = 0, + skelImagePtr = 0, + sum = 0, + done = 0; + + erodedImagePtr = imul(size, size) | 0; + tempImagePtr = erodedImagePtr + erodedImagePtr | 0; + skelImagePtr = tempImagePtr + erodedImagePtr | 0; + + // init skel-image + init(skelImagePtr, 0); + zeroBorder(subImagePtr); + + do { + erode(subImagePtr, erodedImagePtr); + dilate(erodedImagePtr, tempImagePtr); + subtract(subImagePtr, tempImagePtr, tempImagePtr); + bitwiseOr(skelImagePtr, tempImagePtr, skelImagePtr); + memcpy(erodedImagePtr, subImagePtr); + sum = countNonZero(subImagePtr) | 0; + done = (sum | 0) == 0 | 0; + } while (!done); + } + + return { + skeletonize: skeletonize + }; + } + + exports["default"] = Skeletonizer; + + /* eslint-enable eqeqeq*/ + /* @preserve ASM END */ + module.exports = exports["default"]; + +/***/ }, +/* 13 */ +/***/ function(module, exports) { + + "use strict"; + + Object.defineProperty(exports, "__esModule", { + value: true + }); + exports["default"] = { + drawRect: function drawRect(pos, size, ctx, style) { + ctx.strokeStyle = style.color; + ctx.fillStyle = style.color; + ctx.lineWidth = 1; + ctx.beginPath(); + ctx.strokeRect(pos.x, pos.y, size.x, size.y); + }, + drawPath: function drawPath(path, def, ctx, style) { + ctx.strokeStyle = style.color; + ctx.fillStyle = style.color; + ctx.lineWidth = style.lineWidth; + ctx.beginPath(); + ctx.moveTo(path[0][def.x], path[0][def.y]); + for (var j = 1; j < path.length; j++) { + ctx.lineTo(path[j][def.x], path[j][def.y]); + } + ctx.closePath(); + ctx.stroke(); + }, + drawImage: function drawImage(imageData, size, ctx) { + var canvasData = ctx.getImageData(0, 0, size.x, size.y), + data = canvasData.data, + imageDataPos = imageData.length, + canvasDataPos = data.length, + value; + + if (canvasDataPos / imageDataPos !== 4) { + return false; + } + while (imageDataPos--) { + value = imageData[imageDataPos]; + data[--canvasDataPos] = 255; + data[--canvasDataPos] = value; + data[--canvasDataPos] = value; + data[--canvasDataPos] = value; + } + ctx.putImageData(canvasData, 0, 0); + return true; + } + }; + module.exports = exports["default"]; + +/***/ }, +/* 14 */ +/***/ function(module, exports, __webpack_require__) { + + 'use strict'; + + Object.defineProperty(exports, '__esModule', { + value: true + }); + + function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; } + + var _bresenham = __webpack_require__(15); + + var _bresenham2 = _interopRequireDefault(_bresenham); + + var _image_debug = __webpack_require__(13); + + var _image_debug2 = _interopRequireDefault(_image_debug); + + var _code_128_reader = __webpack_require__(16); + + var _code_128_reader2 = _interopRequireDefault(_code_128_reader); + + var _ean_reader = __webpack_require__(18); + + var _ean_reader2 = _interopRequireDefault(_ean_reader); + + var _code_39_reader = __webpack_require__(19); + + var _code_39_reader2 = _interopRequireDefault(_code_39_reader); + + var _code_39_vin_reader = __webpack_require__(20); + + var _code_39_vin_reader2 = _interopRequireDefault(_code_39_vin_reader); + + var _codabar_reader = __webpack_require__(21); + + var _codabar_reader2 = _interopRequireDefault(_codabar_reader); + + var _upc_reader = __webpack_require__(22); + + var _upc_reader2 = _interopRequireDefault(_upc_reader); + + var _ean_8_reader = __webpack_require__(23); + + var _ean_8_reader2 = _interopRequireDefault(_ean_8_reader); + + var _upc_e_reader = __webpack_require__(24); + + var _upc_e_reader2 = _interopRequireDefault(_upc_e_reader); + + var _i2of5_reader = __webpack_require__(25); + + var _i2of5_reader2 = _interopRequireDefault(_i2of5_reader); + + var READERS = { + code_128_reader: _code_128_reader2['default'], + ean_reader: _ean_reader2['default'], + ean_8_reader: _ean_8_reader2['default'], + code_39_reader: _code_39_reader2['default'], + code_39_vin_reader: _code_39_vin_reader2['default'], + codabar_reader: _codabar_reader2['default'], + upc_reader: _upc_reader2['default'], + upc_e_reader: _upc_e_reader2['default'], + i2of5_reader: _i2of5_reader2['default'] + }; + exports['default'] = { + create: function create(config, inputImageWrapper) { + var _canvas = { + ctx: { + frequency: null, + pattern: null, + overlay: null + }, + dom: { + frequency: null, + pattern: null, + overlay: null + } + }, + _barcodeReaders = []; + + initCanvas(); + initReaders(); + initConfig(); + + function initCanvas() { + if (typeof document !== 'undefined') { + var $debug = document.querySelector("#debug.detection"); + _canvas.dom.frequency = document.querySelector("canvas.frequency"); + if (!_canvas.dom.frequency) { + _canvas.dom.frequency = document.createElement("canvas"); + _canvas.dom.frequency.className = "frequency"; + if ($debug) { + $debug.appendChild(_canvas.dom.frequency); + } + } + _canvas.ctx.frequency = _canvas.dom.frequency.getContext("2d"); + + _canvas.dom.pattern = document.querySelector("canvas.patternBuffer"); + if (!_canvas.dom.pattern) { + _canvas.dom.pattern = document.createElement("canvas"); + _canvas.dom.pattern.className = "patternBuffer"; + if ($debug) { + $debug.appendChild(_canvas.dom.pattern); + } + } + _canvas.ctx.pattern = _canvas.dom.pattern.getContext("2d"); + + _canvas.dom.overlay = document.querySelector("canvas.drawingBuffer"); + if (_canvas.dom.overlay) { + _canvas.ctx.overlay = _canvas.dom.overlay.getContext("2d"); + } + } + } + + function initReaders() { + config.readers.forEach(function (readerConfig) { + var reader, + configuration = {}; + + if (typeof readerConfig === 'object') { + reader = readerConfig.format; + configuration = readerConfig.config; + } else if (typeof readerConfig === 'string') { + reader = readerConfig; + } + console.log("Before registering reader: ", reader); + _barcodeReaders.push(new READERS[reader](configuration)); + }); + console.log("Registered Readers: " + _barcodeReaders.map(function (reader) { + return JSON.stringify({ format: reader.FORMAT, config: reader.config }); + }).join(', ')); + } + + function initConfig() { + if (typeof document !== 'undefined') { + var i, + vis = [{ + node: _canvas.dom.frequency, + prop: config.showFrequency + }, { + node: _canvas.dom.pattern, + prop: config.showPattern + }]; + + for (i = 0; i < vis.length; i++) { + if (vis[i].prop === true) { + vis[i].node.style.display = "block"; + } else { + vis[i].node.style.display = "none"; + } + } + } + } + + /** + * extend the line on both ends + * @param {Array} line + * @param {Number} angle + */ + function getExtendedLine(line, angle, ext) { + function extendLine(amount) { + var extension = { + y: amount * Math.sin(angle), + x: amount * Math.cos(angle) + }; + + line[0].y -= extension.y; + line[0].x -= extension.x; + line[1].y += extension.y; + line[1].x += extension.x; + } + + // check if inside image + extendLine(ext); + while (ext > 1 && (!inputImageWrapper.inImageWithBorder(line[0], 0) || !inputImageWrapper.inImageWithBorder(line[1], 0))) { + ext -= Math.ceil(ext / 2); + extendLine(-ext); + } + return line; + } + + function getLine(box) { + return [{ + x: (box[1][0] - box[0][0]) / 2 + box[0][0], + y: (box[1][1] - box[0][1]) / 2 + box[0][1] + }, { + x: (box[3][0] - box[2][0]) / 2 + box[2][0], + y: (box[3][1] - box[2][1]) / 2 + box[2][1] + }]; + } + + function tryDecode(line) { + var result = null, + i, + barcodeLine = _bresenham2['default'].getBarcodeLine(inputImageWrapper, line[0], line[1]); + + if (config.showFrequency) { + _image_debug2['default'].drawPath(line, { x: 'x', y: 'y' }, _canvas.ctx.overlay, { color: 'red', lineWidth: 3 }); + _bresenham2['default'].debug.printFrequency(barcodeLine.line, _canvas.dom.frequency); + } + _bresenham2['default'].toBinaryLine(barcodeLine); + if (config.showPattern) { + _bresenham2['default'].debug.printPattern(barcodeLine.line, _canvas.dom.pattern); + } + + for (i = 0; i < _barcodeReaders.length && result === null; i++) { + result = _barcodeReaders[i].decodePattern(barcodeLine.line); + } + if (result === null) { + return null; + } + return { + codeResult: result, + barcodeLine: barcodeLine + }; + } + + /** + * This method slices the given area apart and tries to detect a barcode-pattern + * for each slice. It returns the decoded barcode, or null if nothing was found + * @param {Array} box + * @param {Array} line + * @param {Number} lineAngle + */ + function tryDecodeBruteForce(box, line, lineAngle) { + var sideLength = Math.sqrt(Math.pow(box[1][0] - box[0][0], 2) + Math.pow(box[1][1] - box[0][1], 2)), + i, + slices = 16, + result = null, + dir, + extension, + xdir = Math.sin(lineAngle), + ydir = Math.cos(lineAngle); + + for (i = 1; i < slices && result === null; i++) { + // move line perpendicular to angle + dir = sideLength / slices * i * (i % 2 === 0 ? -1 : 1); + extension = { + y: dir * xdir, + x: dir * ydir + }; + line[0].y += extension.x; + line[0].x -= extension.y; + line[1].y += extension.x; + line[1].x -= extension.y; + + result = tryDecode(line); + } + return result; + } + + function getLineLength(line) { + return Math.sqrt(Math.pow(Math.abs(line[1].y - line[0].y), 2) + Math.pow(Math.abs(line[1].x - line[0].x), 2)); + } + + /** + * With the help of the configured readers (Code128 or EAN) this function tries to detect a + * valid barcode pattern within the given area. + * @param {Object} box The area to search in + * @returns {Object} the result {codeResult, line, angle, pattern, threshold} + */ + function _decodeFromBoundingBox(box) { + var line, + lineAngle, + ctx = _canvas.ctx.overlay, + result, + lineLength; + + if (config.drawBoundingBox && ctx) { + _image_debug2['default'].drawPath(box, { x: 0, y: 1 }, ctx, { color: "blue", lineWidth: 2 }); + } + + line = getLine(box); + lineLength = getLineLength(line); + lineAngle = Math.atan2(line[1].y - line[0].y, line[1].x - line[0].x); + line = getExtendedLine(line, lineAngle, Math.floor(lineLength * 0.1)); + if (line === null) { + return null; + } + + result = tryDecode(line); + if (result === null) { + result = tryDecodeBruteForce(box, line, lineAngle); + } + + if (result === null) { + return null; + } + + if (result && config.drawScanline && ctx) { + _image_debug2['default'].drawPath(line, { x: 'x', y: 'y' }, ctx, { color: 'red', lineWidth: 3 }); + } + + return { + codeResult: result.codeResult, + line: line, + angle: lineAngle, + pattern: result.barcodeLine.line, + threshold: result.barcodeLine.threshold + }; + } + + return { + decodeFromBoundingBox: function decodeFromBoundingBox(box) { + return _decodeFromBoundingBox(box); + }, + decodeFromBoundingBoxes: function decodeFromBoundingBoxes(boxes) { + var i, result; + for (i = 0; i < boxes.length; i++) { + result = _decodeFromBoundingBox(boxes[i]); + if (result && result.codeResult) { + result.box = boxes[i]; + return result; + } + } + }, + setReaders: function setReaders(readers) { + config.readers = readers; + _barcodeReaders.length = 0; + initReaders(); + } + }; + } + }; + module.exports = exports['default']; + +/***/ }, +/* 15 */ +/***/ function(module, exports, __webpack_require__) { + + 'use strict'; + + Object.defineProperty(exports, '__esModule', { + value: true + }); + + function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; } + + var _cv_utils = __webpack_require__(5); + + var _cv_utils2 = _interopRequireDefault(_cv_utils); + + var _image_wrapper = __webpack_require__(3); + + var _image_wrapper2 = _interopRequireDefault(_image_wrapper); + + var Bresenham = {}; + + var Slope = { + DIR: { + UP: 1, + DOWN: -1 + } + }; + /** + * Scans a line of the given image from point p1 to p2 and returns a result object containing + * gray-scale values (0-255) of the underlying pixels in addition to the min + * and max values. + * @param {Object} imageWrapper + * @param {Object} p1 The start point {x,y} + * @param {Object} p2 The end point {x,y} + * @returns {line, min, max} + */ + Bresenham.getBarcodeLine = function (imageWrapper, p1, p2) { + var x0 = p1.x | 0, + y0 = p1.y | 0, + x1 = p2.x | 0, + y1 = p2.y | 0, + steep = Math.abs(y1 - y0) > Math.abs(x1 - x0), + deltax, + deltay, + error, + ystep, + y, + tmp, + x, + line = [], + imageData = imageWrapper.data, + width = imageWrapper.size.x, + sum = 0, + val, + min = 255, + max = 0; + + function read(a, b) { + val = imageData[b * width + a]; + sum += val; + min = val < min ? val : min; + max = val > max ? val : max; + line.push(val); + } + + if (steep) { + tmp = x0; + x0 = y0; + y0 = tmp; + + tmp = x1; + x1 = y1; + y1 = tmp; + } + if (x0 > x1) { + tmp = x0; + x0 = x1; + x1 = tmp; + + tmp = y0; + y0 = y1; + y1 = tmp; + } + deltax = x1 - x0; + deltay = Math.abs(y1 - y0); + error = deltax / 2 | 0; + y = y0; + ystep = y0 < y1 ? 1 : -1; + for (x = x0; x < x1; x++) { + if (steep) { + read(y, x); + } else { + read(x, y); + } + error = error - deltay; + if (error < 0) { + y = y + ystep; + error = error + deltax; + } + } + + return { + line: line, + min: min, + max: max + }; + }; + + Bresenham.toOtsuBinaryLine = function (result) { + var line = result.line, + image = new _image_wrapper2['default']({ x: line.length - 1, y: 1 }, line), + threshold = _cv_utils2['default'].determineOtsuThreshold(image, 5); + + line = _cv_utils2['default'].sharpenLine(line); + _cv_utils2['default'].thresholdImage(image, threshold); + + return { + line: line, + threshold: threshold + }; + }; + + /** + * Converts the result from getBarcodeLine into a binary representation + * also considering the frequency and slope of the signal for more robust results + * @param {Object} result {line, min, max} + */ + Bresenham.toBinaryLine = function (result) { + var min = result.min, + max = result.max, + line = result.line, + slope, + slope2, + center = min + (max - min) / 2, + extrema = [], + currentDir, + dir, + threshold = (max - min) / 12, + rThreshold = -threshold, + i, + j; + + // 1. find extrema + currentDir = line[0] > center ? Slope.DIR.UP : Slope.DIR.DOWN; + extrema.push({ + pos: 0, + val: line[0] + }); + for (i = 0; i < line.length - 2; i++) { + slope = line[i + 1] - line[i]; + slope2 = line[i + 2] - line[i + 1]; + if (slope + slope2 < rThreshold && line[i + 1] < center * 1.5) { + dir = Slope.DIR.DOWN; + } else if (slope + slope2 > threshold && line[i + 1] > center * 0.5) { + dir = Slope.DIR.UP; + } else { + dir = currentDir; + } + + if (currentDir !== dir) { + extrema.push({ + pos: i, + val: line[i] + }); + currentDir = dir; + } + } + extrema.push({ + pos: line.length, + val: line[line.length - 1] + }); + + for (j = extrema[0].pos; j < extrema[1].pos; j++) { + line[j] = line[j] > center ? 0 : 1; + } + + // iterate over extrema and convert to binary based on avg between minmax + for (i = 1; i < extrema.length - 1; i++) { + if (extrema[i + 1].val > extrema[i].val) { + threshold = extrema[i].val + (extrema[i + 1].val - extrema[i].val) / 3 * 2 | 0; + } else { + threshold = extrema[i + 1].val + (extrema[i].val - extrema[i + 1].val) / 3 | 0; + } + + for (j = extrema[i].pos; j < extrema[i + 1].pos; j++) { + line[j] = line[j] > threshold ? 0 : 1; + } + } + + return { + line: line, + threshold: threshold + }; + }; + + /** + * Used for development only + */ + Bresenham.debug = { + printFrequency: function printFrequency(line, canvas) { + var i, + ctx = canvas.getContext("2d"); + canvas.width = line.length; + canvas.height = 256; + + ctx.beginPath(); + ctx.strokeStyle = "blue"; + for (i = 0; i < line.length; i++) { + ctx.moveTo(i, 255); + ctx.lineTo(i, 255 - line[i]); + } + ctx.stroke(); + ctx.closePath(); + }, + + printPattern: function printPattern(line, canvas) { + var ctx = canvas.getContext("2d"), + i; + + canvas.width = line.length; + ctx.fillColor = "black"; + for (i = 0; i < line.length; i++) { + if (line[i] === 1) { + ctx.fillRect(i, 0, 1, 100); + } + } + } + }; + + exports['default'] = Bresenham; + module.exports = exports['default']; + +/***/ }, +/* 16 */ +/***/ function(module, exports, __webpack_require__) { + + "use strict"; + + Object.defineProperty(exports, "__esModule", { + value: true + }); + + function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; } + + var _barcode_reader = __webpack_require__(17); + + var _barcode_reader2 = _interopRequireDefault(_barcode_reader); + + function Code128Reader() { + _barcode_reader2["default"].call(this); + } + + var properties = { + CODE_SHIFT: { value: 98 }, + CODE_C: { value: 99 }, + CODE_B: { value: 100 }, + CODE_A: { value: 101 }, + START_CODE_A: { value: 103 }, + START_CODE_B: { value: 104 }, + START_CODE_C: { value: 105 }, + STOP_CODE: { value: 106 }, + MODULO: { value: 11 }, + CODE_PATTERN: { value: [[2, 1, 2, 2, 2, 2], [2, 2, 2, 1, 2, 2], [2, 2, 2, 2, 2, 1], [1, 2, 1, 2, 2, 3], [1, 2, 1, 3, 2, 2], [1, 3, 1, 2, 2, 2], [1, 2, 2, 2, 1, 3], [1, 2, 2, 3, 1, 2], [1, 3, 2, 2, 1, 2], [2, 2, 1, 2, 1, 3], [2, 2, 1, 3, 1, 2], [2, 3, 1, 2, 1, 2], [1, 1, 2, 2, 3, 2], [1, 2, 2, 1, 3, 2], [1, 2, 2, 2, 3, 1], [1, 1, 3, 2, 2, 2], [1, 2, 3, 1, 2, 2], [1, 2, 3, 2, 2, 1], [2, 2, 3, 2, 1, 1], [2, 2, 1, 1, 3, 2], [2, 2, 1, 2, 3, 1], [2, 1, 3, 2, 1, 2], [2, 2, 3, 1, 1, 2], [3, 1, 2, 1, 3, 1], [3, 1, 1, 2, 2, 2], [3, 2, 1, 1, 2, 2], [3, 2, 1, 2, 2, 1], [3, 1, 2, 2, 1, 2], [3, 2, 2, 1, 1, 2], [3, 2, 2, 2, 1, 1], [2, 1, 2, 1, 2, 3], [2, 1, 2, 3, 2, 1], [2, 3, 2, 1, 2, 1], [1, 1, 1, 3, 2, 3], [1, 3, 1, 1, 2, 3], [1, 3, 1, 3, 2, 1], [1, 1, 2, 3, 1, 3], [1, 3, 2, 1, 1, 3], [1, 3, 2, 3, 1, 1], [2, 1, 1, 3, 1, 3], [2, 3, 1, 1, 1, 3], [2, 3, 1, 3, 1, 1], [1, 1, 2, 1, 3, 3], [1, 1, 2, 3, 3, 1], [1, 3, 2, 1, 3, 1], [1, 1, 3, 1, 2, 3], [1, 1, 3, 3, 2, 1], [1, 3, 3, 1, 2, 1], [3, 1, 3, 1, 2, 1], [2, 1, 1, 3, 3, 1], [2, 3, 1, 1, 3, 1], [2, 1, 3, 1, 1, 3], [2, 1, 3, 3, 1, 1], [2, 1, 3, 1, 3, 1], [3, 1, 1, 1, 2, 3], [3, 1, 1, 3, 2, 1], [3, 3, 1, 1, 2, 1], [3, 1, 2, 1, 1, 3], [3, 1, 2, 3, 1, 1], [3, 3, 2, 1, 1, 1], [3, 1, 4, 1, 1, 1], [2, 2, 1, 4, 1, 1], [4, 3, 1, 1, 1, 1], [1, 1, 1, 2, 2, 4], [1, 1, 1, 4, 2, 2], [1, 2, 1, 1, 2, 4], [1, 2, 1, 4, 2, 1], [1, 4, 1, 1, 2, 2], [1, 4, 1, 2, 2, 1], [1, 1, 2, 2, 1, 4], [1, 1, 2, 4, 1, 2], [1, 2, 2, 1, 1, 4], [1, 2, 2, 4, 1, 1], [1, 4, 2, 1, 1, 2], [1, 4, 2, 2, 1, 1], [2, 4, 1, 2, 1, 1], [2, 2, 1, 1, 1, 4], [4, 1, 3, 1, 1, 1], [2, 4, 1, 1, 1, 2], [1, 3, 4, 1, 1, 1], [1, 1, 1, 2, 4, 2], [1, 2, 1, 1, 4, 2], [1, 2, 1, 2, 4, 1], [1, 1, 4, 2, 1, 2], [1, 2, 4, 1, 1, 2], [1, 2, 4, 2, 1, 1], [4, 1, 1, 2, 1, 2], [4, 2, 1, 1, 1, 2], [4, 2, 1, 2, 1, 1], [2, 1, 2, 1, 4, 1], [2, 1, 4, 1, 2, 1], [4, 1, 2, 1, 2, 1], [1, 1, 1, 1, 4, 3], [1, 1, 1, 3, 4, 1], [1, 3, 1, 1, 4, 1], [1, 1, 4, 1, 1, 3], [1, 1, 4, 3, 1, 1], [4, 1, 1, 1, 1, 3], [4, 1, 1, 3, 1, 1], [1, 1, 3, 1, 4, 1], [1, 1, 4, 1, 3, 1], [3, 1, 1, 1, 4, 1], [4, 1, 1, 1, 3, 1], [2, 1, 1, 4, 1, 2], [2, 1, 1, 2, 1, 4], [2, 1, 1, 2, 3, 2], [2, 3, 3, 1, 1, 1, 2]] }, + SINGLE_CODE_ERROR: { value: 1 }, + AVG_CODE_ERROR: { value: 0.5 }, + FORMAT: { value: "code_128", writeable: false } + }; + + Code128Reader.prototype = Object.create(_barcode_reader2["default"].prototype, properties); + Code128Reader.prototype.constructor = Code128Reader; + + Code128Reader.prototype._decodeCode = function (start) { + var counter = [0, 0, 0, 0, 0, 0], + i, + self = this, + offset = start, + isWhite = !self._row[offset], + counterPos = 0, + bestMatch = { + error: Number.MAX_VALUE, + code: -1, + start: start, + end: start + }, + code, + error, + normalized; + + for (i = offset; i < self._row.length; i++) { + if (self._row[i] ^ isWhite) { + counter[counterPos]++; + } else { + if (counterPos === counter.length - 1) { + normalized = self._normalize(counter); + if (normalized) { + for (code = 0; code < self.CODE_PATTERN.length; code++) { + error = self._matchPattern(normalized, self.CODE_PATTERN[code]); + if (error < bestMatch.error) { + bestMatch.code = code; + bestMatch.error = error; + } + } + bestMatch.end = i; + return bestMatch; + } + } else { + counterPos++; + } + counter[counterPos] = 1; + isWhite = !isWhite; + } + } + return null; + }; + + Code128Reader.prototype._findStart = function () { + var counter = [0, 0, 0, 0, 0, 0], + i, + self = this, + offset = self._nextSet(self._row), + isWhite = false, + counterPos = 0, + bestMatch = { + error: Number.MAX_VALUE, + code: -1, + start: 0, + end: 0 + }, + code, + error, + j, + sum, + normalized; + + for (i = offset; i < self._row.length; i++) { + if (self._row[i] ^ isWhite) { + counter[counterPos]++; + } else { + if (counterPos === counter.length - 1) { + sum = 0; + for (j = 0; j < counter.length; j++) { + sum += counter[j]; + } + normalized = self._normalize(counter); + if (normalized) { + for (code = self.START_CODE_A; code <= self.START_CODE_C; code++) { + error = self._matchPattern(normalized, self.CODE_PATTERN[code]); + if (error < bestMatch.error) { + bestMatch.code = code; + bestMatch.error = error; + } + } + if (bestMatch.error < self.AVG_CODE_ERROR) { + bestMatch.start = i - sum; + bestMatch.end = i; + return bestMatch; + } + } + + for (j = 0; j < 4; j++) { + counter[j] = counter[j + 2]; + } + counter[4] = 0; + counter[5] = 0; + counterPos--; + } else { + counterPos++; + } + counter[counterPos] = 1; + isWhite = !isWhite; + } + } + return null; + }; + + Code128Reader.prototype._decode = function () { + var self = this, + startInfo = self._findStart(), + code = null, + done = false, + result = [], + multiplier = 0, + checksum = 0, + codeset, + rawResult = [], + decodedCodes = [], + shiftNext = false, + unshift; + + if (startInfo === null) { + return null; + } + code = { + code: startInfo.code, + start: startInfo.start, + end: startInfo.end + }; + decodedCodes.push(code); + checksum = code.code; + switch (code.code) { + case self.START_CODE_A: + codeset = self.CODE_A; + break; + case self.START_CODE_B: + codeset = self.CODE_B; + break; + case self.START_CODE_C: + codeset = self.CODE_C; + break; + default: + return null; + } + + while (!done) { + unshift = shiftNext; + shiftNext = false; + code = self._decodeCode(code.end); + if (code !== null) { + if (code.code !== self.STOP_CODE) { + rawResult.push(code.code); + multiplier++; + checksum += multiplier * code.code; + } + decodedCodes.push(code); + + switch (codeset) { + case self.CODE_A: + if (code.code < 64) { + result.push(String.fromCharCode(32 + code.code)); + } else if (code.code < 96) { + result.push(String.fromCharCode(code.code - 64)); + } else { + switch (code.code) { + case self.CODE_SHIFT: + shiftNext = true; + codeset = self.CODE_B; + break; + case self.CODE_B: + codeset = self.CODE_B; + break; + case self.CODE_C: + codeset = self.CODE_C; + break; + case self.STOP_CODE: + done = true; + break; + } + } + break; + case self.CODE_B: + if (code.code < 96) { + result.push(String.fromCharCode(32 + code.code)); + } else { + switch (code.code) { + case self.CODE_SHIFT: + shiftNext = true; + codeset = self.CODE_A; + break; + case self.CODE_A: + codeset = self.CODE_A; + break; + case self.CODE_C: + codeset = self.CODE_C; + break; + case self.STOP_CODE: + done = true; + break; + } + } + break; + case self.CODE_C: + if (code.code < 100) { + result.push(code.code < 10 ? "0" + code.code : code.code); + } + switch (code.code) { + case self.CODE_A: + codeset = self.CODE_A; + break; + case self.CODE_B: + codeset = self.CODE_B; + break; + case self.STOP_CODE: + done = true; + break; + } + break; + } + } else { + done = true; + } + if (unshift) { + codeset = codeset === self.CODE_A ? self.CODE_B : self.CODE_A; + } + } + + if (code === null) { + return null; + } + + // find end bar + code.end = self._nextUnset(self._row, code.end); + if (!self._verifyTrailingWhitespace(code)) { + return null; + } + + // checksum + // Does not work correctly yet!!! startcode - endcode? + checksum -= multiplier * rawResult[rawResult.length - 1]; + if (checksum % 103 !== rawResult[rawResult.length - 1]) { + return null; + } + + if (!result.length) { + return null; + } + + // remove last code from result (checksum) + result.splice(result.length - 1, 1); + + return { + code: result.join(""), + start: startInfo.start, + end: code.end, + codeset: codeset, + startInfo: startInfo, + decodedCodes: decodedCodes, + endInfo: code + }; + }; + + _barcode_reader2["default"].prototype._verifyTrailingWhitespace = function (endInfo) { + var self = this, + trailingWhitespaceEnd; + + trailingWhitespaceEnd = endInfo.end + (endInfo.end - endInfo.start) / 2; + if (trailingWhitespaceEnd < self._row.length) { + if (self._matchRange(endInfo.end, trailingWhitespaceEnd, 0)) { + return endInfo; + } + } + return null; + }; + + exports["default"] = Code128Reader; + module.exports = exports["default"]; + +/***/ }, +/* 17 */ +/***/ function(module, exports) { + + 'use strict'; + + Object.defineProperty(exports, '__esModule', { + value: true + }); + function BarcodeReader(config) { + this._row = []; + this.config = config || {}; + return this; + } + + BarcodeReader.prototype._nextUnset = function (line, start) { + var i; + + if (start === undefined) { + start = 0; + } + for (i = start; i < line.length; i++) { + if (!line[i]) { + return i; + } + } + return line.length; + }; + + BarcodeReader.prototype._matchPattern = function (counter, code) { + var i, + error = 0, + singleError = 0, + modulo = this.MODULO, + maxSingleError = this.SINGLE_CODE_ERROR || 1; + + for (i = 0; i < counter.length; i++) { + singleError = Math.abs(code[i] - counter[i]); + if (singleError > maxSingleError) { + return Number.MAX_VALUE; + } + error += singleError; + } + return error / modulo; + }; + + BarcodeReader.prototype._nextSet = function (line, offset) { + var i; + + offset = offset || 0; + for (i = offset; i < line.length; i++) { + if (line[i]) { + return i; + } + } + return line.length; + }; + + BarcodeReader.prototype._normalize = function (counter, modulo) { + var i, + self = this, + sum = 0, + ratio, + numOnes = 0, + normalized = [], + norm = 0; + + if (!modulo) { + modulo = self.MODULO; + } + for (i = 0; i < counter.length; i++) { + if (counter[i] === 1) { + numOnes++; + } else { + sum += counter[i]; + } + } + ratio = sum / (modulo - numOnes); + if (ratio > 1.0) { + for (i = 0; i < counter.length; i++) { + norm = counter[i] === 1 ? counter[i] : counter[i] / ratio; + normalized.push(norm); + } + } else { + ratio = (sum + numOnes) / modulo; + for (i = 0; i < counter.length; i++) { + norm = counter[i] / ratio; + normalized.push(norm); + } + } + return normalized; + }; + + BarcodeReader.prototype._matchTrace = function (cmpCounter, epsilon) { + var counter = [], + i, + self = this, + offset = self._nextSet(self._row), + isWhite = !self._row[offset], + counterPos = 0, + bestMatch = { + error: Number.MAX_VALUE, + code: -1, + start: 0 + }, + error; + + if (cmpCounter) { + for (i = 0; i < cmpCounter.length; i++) { + counter.push(0); + } + for (i = offset; i < self._row.length; i++) { + if (self._row[i] ^ isWhite) { + counter[counterPos]++; + } else { + if (counterPos === counter.length - 1) { + error = self._matchPattern(counter, cmpCounter); + + if (error < epsilon) { + bestMatch.start = i - offset; + bestMatch.end = i; + bestMatch.counter = counter; + return bestMatch; + } else { + return null; + } + } else { + counterPos++; + } + counter[counterPos] = 1; + isWhite = !isWhite; + } + } + } else { + counter.push(0); + for (i = offset; i < self._row.length; i++) { + if (self._row[i] ^ isWhite) { + counter[counterPos]++; + } else { + counterPos++; + counter.push(0); + counter[counterPos] = 1; + isWhite = !isWhite; + } + } + } + + // if cmpCounter was not given + bestMatch.start = offset; + bestMatch.end = self._row.length - 1; + bestMatch.counter = counter; + return bestMatch; + }; + + BarcodeReader.prototype.decodePattern = function (pattern) { + var self = this, + result; + + self._row = pattern; + result = self._decode(); + if (result === null) { + self._row.reverse(); + result = self._decode(); + if (result) { + result.direction = BarcodeReader.DIRECTION.REVERSE; + result.start = self._row.length - result.start; + result.end = self._row.length - result.end; + } + } else { + result.direction = BarcodeReader.DIRECTION.FORWARD; + } + if (result) { + result.format = self.FORMAT; + } + return result; + }; + + BarcodeReader.prototype._matchRange = function (start, end, value) { + var i; + + start = start < 0 ? 0 : start; + for (i = start; i < end; i++) { + if (this._row[i] !== value) { + return false; + } + } + return true; + }; + + BarcodeReader.prototype._fillCounters = function (offset, end, isWhite) { + var self = this, + counterPos = 0, + i, + counters = []; + + isWhite = typeof isWhite !== 'undefined' ? isWhite : true; + offset = typeof offset !== 'undefined' ? offset : self._nextUnset(self._row); + end = end || self._row.length; + + counters[counterPos] = 0; + for (i = offset; i < end; i++) { + if (self._row[i] ^ isWhite) { + counters[counterPos]++; + } else { + counterPos++; + counters[counterPos] = 1; + isWhite = !isWhite; + } + } + return counters; + }; + + Object.defineProperty(BarcodeReader.prototype, "FORMAT", { + value: 'unknown', + writeable: false + }); + + BarcodeReader.DIRECTION = { + FORWARD: 1, + REVERSE: -1 + }; + + BarcodeReader.Exception = { + StartNotFoundException: "Start-Info was not found!", + CodeNotFoundException: "Code could not be found!", + PatternNotFoundException: "Pattern could not be found!" + }; + + BarcodeReader.CONFIG_KEYS = {}; + + exports['default'] = BarcodeReader; + module.exports = exports['default']; + +/***/ }, +/* 18 */ +/***/ function(module, exports, __webpack_require__) { + + "use strict"; + + Object.defineProperty(exports, "__esModule", { + value: true + }); + + function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; } + + var _barcode_reader = __webpack_require__(17); + + var _barcode_reader2 = _interopRequireDefault(_barcode_reader); + + function EANReader(opts) { + _barcode_reader2["default"].call(this, opts); + } + + var properties = { + CODE_L_START: { value: 0 }, + MODULO: { value: 7 }, + CODE_G_START: { value: 10 }, + START_PATTERN: { value: [1 / 3 * 7, 1 / 3 * 7, 1 / 3 * 7] }, + STOP_PATTERN: { value: [1 / 3 * 7, 1 / 3 * 7, 1 / 3 * 7] }, + MIDDLE_PATTERN: { value: [1 / 5 * 7, 1 / 5 * 7, 1 / 5 * 7, 1 / 5 * 7, 1 / 5 * 7] }, + CODE_PATTERN: { value: [[3, 2, 1, 1], [2, 2, 2, 1], [2, 1, 2, 2], [1, 4, 1, 1], [1, 1, 3, 2], [1, 2, 3, 1], [1, 1, 1, 4], [1, 3, 1, 2], [1, 2, 1, 3], [3, 1, 1, 2], [1, 1, 2, 3], [1, 2, 2, 2], [2, 2, 1, 2], [1, 1, 4, 1], [2, 3, 1, 1], [1, 3, 2, 1], [4, 1, 1, 1], [2, 1, 3, 1], [3, 1, 2, 1], [2, 1, 1, 3]] }, + CODE_FREQUENCY: { value: [0, 11, 13, 14, 19, 25, 28, 21, 22, 26] }, + SINGLE_CODE_ERROR: { value: 0.67 }, + AVG_CODE_ERROR: { value: 0.27 }, + FORMAT: { value: "ean_13", writeable: false } + }; + + EANReader.prototype = Object.create(_barcode_reader2["default"].prototype, properties); + EANReader.prototype.constructor = EANReader; + + EANReader.prototype._decodeCode = function (start, coderange) { + var counter = [0, 0, 0, 0], + i, + self = this, + offset = start, + isWhite = !self._row[offset], + counterPos = 0, + bestMatch = { + error: Number.MAX_VALUE, + code: -1, + start: start, + end: start + }, + code, + error, + normalized; + + if (!coderange) { + coderange = self.CODE_PATTERN.length; + } + + for (i = offset; i < self._row.length; i++) { + if (self._row[i] ^ isWhite) { + counter[counterPos]++; + } else { + if (counterPos === counter.length - 1) { + normalized = self._normalize(counter); + if (normalized) { + for (code = 0; code < coderange; code++) { + error = self._matchPattern(normalized, self.CODE_PATTERN[code]); + if (error < bestMatch.error) { + bestMatch.code = code; + bestMatch.error = error; + } + } + bestMatch.end = i; + if (bestMatch.error > self.AVG_CODE_ERROR) { + return null; + } + return bestMatch; + } + } else { + counterPos++; + } + counter[counterPos] = 1; + isWhite = !isWhite; + } + } + return null; + }; + + EANReader.prototype._findPattern = function (pattern, offset, isWhite, tryHarder, epsilon) { + var counter = [], + self = this, + i, + counterPos = 0, + bestMatch = { + error: Number.MAX_VALUE, + code: -1, + start: 0, + end: 0 + }, + error, + j, + sum, + normalized; + + if (!offset) { + offset = self._nextSet(self._row); + } + + if (isWhite === undefined) { + isWhite = false; + } + + if (tryHarder === undefined) { + tryHarder = true; + } + + if (epsilon === undefined) { + epsilon = self.AVG_CODE_ERROR; + } + + for (i = 0; i < pattern.length; i++) { + counter[i] = 0; + } + + for (i = offset; i < self._row.length; i++) { + if (self._row[i] ^ isWhite) { + counter[counterPos]++; + } else { + if (counterPos === counter.length - 1) { + sum = 0; + for (j = 0; j < counter.length; j++) { + sum += counter[j]; + } + normalized = self._normalize(counter); + if (normalized) { + error = self._matchPattern(normalized, pattern); + + if (error < epsilon) { + bestMatch.error = error; + bestMatch.start = i - sum; + bestMatch.end = i; + return bestMatch; + } + } + if (tryHarder) { + for (j = 0; j < counter.length - 2; j++) { + counter[j] = counter[j + 2]; + } + counter[counter.length - 2] = 0; + counter[counter.length - 1] = 0; + counterPos--; + } else { + return null; + } + } else { + counterPos++; + } + counter[counterPos] = 1; + isWhite = !isWhite; + } + } + return null; + }; + + EANReader.prototype._findStart = function () { + var self = this, + leadingWhitespaceStart, + offset = self._nextSet(self._row), + startInfo; + + while (!startInfo) { + startInfo = self._findPattern(self.START_PATTERN, offset); + if (!startInfo) { + return null; + } + leadingWhitespaceStart = startInfo.start - (startInfo.end - startInfo.start); + if (leadingWhitespaceStart >= 0) { + if (self._matchRange(leadingWhitespaceStart, startInfo.start, 0)) { + return startInfo; + } + } + offset = startInfo.end; + startInfo = null; + } + }; + + EANReader.prototype._verifyTrailingWhitespace = function (endInfo) { + var self = this, + trailingWhitespaceEnd; + + trailingWhitespaceEnd = endInfo.end + (endInfo.end - endInfo.start); + if (trailingWhitespaceEnd < self._row.length) { + if (self._matchRange(endInfo.end, trailingWhitespaceEnd, 0)) { + return endInfo; + } + } + return null; + }; + + EANReader.prototype._findEnd = function (offset, isWhite) { + var self = this, + endInfo = self._findPattern(self.STOP_PATTERN, offset, isWhite, false); + + return endInfo !== null ? self._verifyTrailingWhitespace(endInfo) : null; + }; + + EANReader.prototype._calculateFirstDigit = function (codeFrequency) { + var i, + self = this; + + for (i = 0; i < self.CODE_FREQUENCY.length; i++) { + if (codeFrequency === self.CODE_FREQUENCY[i]) { + return i; + } + } + return null; + }; + + EANReader.prototype._decodePayload = function (code, result, decodedCodes) { + var i, + self = this, + codeFrequency = 0x0, + firstDigit; + + for (i = 0; i < 6; i++) { + code = self._decodeCode(code.end); + if (!code) { + return null; + } + if (code.code >= self.CODE_G_START) { + code.code = code.code - self.CODE_G_START; + codeFrequency |= 1 << 5 - i; + } else { + codeFrequency |= 0 << 5 - i; + } + result.push(code.code); + decodedCodes.push(code); + } + + firstDigit = self._calculateFirstDigit(codeFrequency); + if (firstDigit === null) { + return null; + } + result.unshift(firstDigit); + + code = self._findPattern(self.MIDDLE_PATTERN, code.end, true, false); + if (code === null) { + return null; + } + decodedCodes.push(code); + + for (i = 0; i < 6; i++) { + code = self._decodeCode(code.end, self.CODE_G_START); + if (!code) { + return null; + } + decodedCodes.push(code); + result.push(code.code); + } + + return code; + }; + + EANReader.prototype._decode = function () { + var startInfo, + self = this, + code, + result = [], + decodedCodes = []; + + startInfo = self._findStart(); + if (!startInfo) { + return null; + } + code = { + code: startInfo.code, + start: startInfo.start, + end: startInfo.end + }; + decodedCodes.push(code); + code = self._decodePayload(code, result, decodedCodes); + if (!code) { + return null; + } + code = self._findEnd(code.end, false); + if (!code) { + return null; + } + + decodedCodes.push(code); + + // Checksum + if (!self._checksum(result)) { + return null; + } + + return { + code: result.join(""), + start: startInfo.start, + end: code.end, + codeset: "", + startInfo: startInfo, + decodedCodes: decodedCodes + }; + }; + + EANReader.prototype._checksum = function (result) { + var sum = 0, + i; + + for (i = result.length - 2; i >= 0; i -= 2) { + sum += result[i]; + } + sum *= 3; + for (i = result.length - 1; i >= 0; i -= 2) { + sum += result[i]; + } + return sum % 10 === 0; + }; + + exports["default"] = EANReader; + module.exports = exports["default"]; + +/***/ }, +/* 19 */ +/***/ function(module, exports, __webpack_require__) { + + 'use strict'; + + Object.defineProperty(exports, '__esModule', { + value: true + }); + + function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; } + + var _barcode_reader = __webpack_require__(17); + + var _barcode_reader2 = _interopRequireDefault(_barcode_reader); + + var _array_helper = __webpack_require__(8); + + var _array_helper2 = _interopRequireDefault(_array_helper); + + function Code39Reader() { + _barcode_reader2['default'].call(this); + } + + var properties = { + ALPHABETH_STRING: { value: "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ-. *$/+%" }, + ALPHABET: { value: [48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 45, 46, 32, 42, 36, 47, 43, 37] }, + CHARACTER_ENCODINGS: { value: [0x034, 0x121, 0x061, 0x160, 0x031, 0x130, 0x070, 0x025, 0x124, 0x064, 0x109, 0x049, 0x148, 0x019, 0x118, 0x058, 0x00D, 0x10C, 0x04C, 0x01C, 0x103, 0x043, 0x142, 0x013, 0x112, 0x052, 0x007, 0x106, 0x046, 0x016, 0x181, 0x0C1, 0x1C0, 0x091, 0x190, 0x0D0, 0x085, 0x184, 0x0C4, 0x094, 0x0A8, 0x0A2, 0x08A, 0x02A] }, + ASTERISK: { value: 0x094 }, + FORMAT: { value: "code_39", writeable: false } + }; + + Code39Reader.prototype = Object.create(_barcode_reader2['default'].prototype, properties); + Code39Reader.prototype.constructor = Code39Reader; + + Code39Reader.prototype._toCounters = function (start, counter) { + var self = this, + numCounters = counter.length, + end = self._row.length, + isWhite = !self._row[start], + i, + counterPos = 0; + + _array_helper2['default'].init(counter, 0); + + for (i = start; i < end; i++) { + if (self._row[i] ^ isWhite) { + counter[counterPos]++; + } else { + counterPos++; + if (counterPos === numCounters) { + break; + } else { + counter[counterPos] = 1; + isWhite = !isWhite; + } + } + } + + return counter; + }; + + Code39Reader.prototype._decode = function () { + var self = this, + counters = [0, 0, 0, 0, 0, 0, 0, 0, 0], + result = [], + start = self._findStart(), + decodedChar, + lastStart, + pattern, + nextStart; + + if (!start) { + return null; + } + nextStart = self._nextSet(self._row, start.end); + + do { + counters = self._toCounters(nextStart, counters); + pattern = self._toPattern(counters); + if (pattern < 0) { + return null; + } + decodedChar = self._patternToChar(pattern); + if (decodedChar < 0) { + return null; + } + result.push(decodedChar); + lastStart = nextStart; + nextStart += _array_helper2['default'].sum(counters); + nextStart = self._nextSet(self._row, nextStart); + } while (decodedChar !== '*'); + result.pop(); + + if (!result.length) { + return null; + } + + if (!self._verifyTrailingWhitespace(lastStart, nextStart, counters)) { + return null; + } + + return { + code: result.join(""), + start: start.start, + end: nextStart, + startInfo: start, + decodedCodes: result + }; + }; + + Code39Reader.prototype._verifyTrailingWhitespace = function (lastStart, nextStart, counters) { + var trailingWhitespaceEnd, + patternSize = _array_helper2['default'].sum(counters); + + trailingWhitespaceEnd = nextStart - lastStart - patternSize; + if (trailingWhitespaceEnd * 3 >= patternSize) { + return true; + } + return false; + }; + + Code39Reader.prototype._patternToChar = function (pattern) { + var i, + self = this; + + for (i = 0; i < self.CHARACTER_ENCODINGS.length; i++) { + if (self.CHARACTER_ENCODINGS[i] === pattern) { + return String.fromCharCode(self.ALPHABET[i]); + } + } + }; + + Code39Reader.prototype._findNextWidth = function (counters, current) { + var i, + minWidth = Number.MAX_VALUE; + + for (i = 0; i < counters.length; i++) { + if (counters[i] < minWidth && counters[i] > current) { + minWidth = counters[i]; + } + } + + return minWidth; + }; + + Code39Reader.prototype._toPattern = function (counters) { + var numCounters = counters.length, + maxNarrowWidth = 0, + numWideBars = numCounters, + wideBarWidth = 0, + self = this, + pattern, + i; + + while (numWideBars > 3) { + maxNarrowWidth = self._findNextWidth(counters, maxNarrowWidth); + numWideBars = 0; + pattern = 0; + for (i = 0; i < numCounters; i++) { + if (counters[i] > maxNarrowWidth) { + pattern |= 1 << numCounters - 1 - i; + numWideBars++; + wideBarWidth += counters[i]; + } + } + + if (numWideBars === 3) { + for (i = 0; i < numCounters && numWideBars > 0; i++) { + if (counters[i] > maxNarrowWidth) { + numWideBars--; + if (counters[i] * 2 >= wideBarWidth) { + return -1; + } + } + } + return pattern; + } + } + return -1; + }; + + Code39Reader.prototype._findStart = function () { + var self = this, + offset = self._nextSet(self._row), + patternStart = offset, + counter = [0, 0, 0, 0, 0, 0, 0, 0, 0], + counterPos = 0, + isWhite = false, + i, + j, + whiteSpaceMustStart; + + for (i = offset; i < self._row.length; i++) { + if (self._row[i] ^ isWhite) { + counter[counterPos]++; + } else { + if (counterPos === counter.length - 1) { + // find start pattern + if (self._toPattern(counter) === self.ASTERISK) { + whiteSpaceMustStart = Math.floor(Math.max(0, patternStart - (i - patternStart) / 4)); + if (self._matchRange(whiteSpaceMustStart, patternStart, 0)) { + return { + start: patternStart, + end: i + }; + } + } + + patternStart += counter[0] + counter[1]; + for (j = 0; j < 7; j++) { + counter[j] = counter[j + 2]; + } + counter[7] = 0; + counter[8] = 0; + counterPos--; + } else { + counterPos++; + } + counter[counterPos] = 1; + isWhite = !isWhite; + } + } + return null; + }; + + exports['default'] = Code39Reader; + module.exports = exports['default']; + +/***/ }, +/* 20 */ +/***/ function(module, exports, __webpack_require__) { + + 'use strict'; + + Object.defineProperty(exports, '__esModule', { + value: true + }); + + function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; } + + var _code_39_reader = __webpack_require__(19); + + var _code_39_reader2 = _interopRequireDefault(_code_39_reader); + + function Code39VINReader() { + _code_39_reader2['default'].call(this); + } + + var patterns = { + IOQ: /[IOQ]/g, + AZ09: /[A-Z0-9]{17}/ + }; + + Code39VINReader.prototype = Object.create(_code_39_reader2['default'].prototype); + Code39VINReader.prototype.constructor = Code39VINReader; + + // Cribbed from: + // /~https://github.com/zxing/zxing/blob/master/core/src/main/java/com/google/zxing/client/result/VINResultParser.java + Code39VINReader.prototype._decode = function () { + var result = _code_39_reader2['default'].prototype._decode.apply(this); + if (!result) { + return null; + } + + var code = result.code; + + if (!code) { + return null; + } + + code = code.replace(patterns.IOQ, ''); + + if (!code.match(patterns.AZ09)) { + console.log('Failed AZ09 pattern code:', code); + return null; + } + + if (!this._checkChecksum(code)) { + return null; + } + + result.code = code; + return result; + }; + + Code39VINReader.prototype._checkChecksum = function (code) { + // TODO + return !!code; + }; + + exports['default'] = Code39VINReader; + module.exports = exports['default']; + +/***/ }, +/* 21 */ +/***/ function(module, exports, __webpack_require__) { + + "use strict"; + + Object.defineProperty(exports, "__esModule", { + value: true + }); + + function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; } + + var _barcode_reader = __webpack_require__(17); + + var _barcode_reader2 = _interopRequireDefault(_barcode_reader); + + function CodabarReader() { + _barcode_reader2["default"].call(this); + this._counters = []; + } + + var properties = { + ALPHABETH_STRING: { value: "0123456789-$:/.+ABCD" }, + ALPHABET: { value: [48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 45, 36, 58, 47, 46, 43, 65, 66, 67, 68] }, + CHARACTER_ENCODINGS: { value: [0x003, 0x006, 0x009, 0x060, 0x012, 0x042, 0x021, 0x024, 0x030, 0x048, 0x00c, 0x018, 0x045, 0x051, 0x054, 0x015, 0x01A, 0x029, 0x00B, 0x00E] }, + START_END: { value: [0x01A, 0x029, 0x00B, 0x00E] }, + MIN_ENCODED_CHARS: { value: 4 }, + MAX_ACCEPTABLE: { value: 2.0 }, + PADDING: { value: 1.5 }, + FORMAT: { value: "codabar", writeable: false } + }; + + CodabarReader.prototype = Object.create(_barcode_reader2["default"].prototype, properties); + CodabarReader.prototype.constructor = CodabarReader; + + CodabarReader.prototype._decode = function () { + var self = this, + result = [], + start, + decodedChar, + pattern, + nextStart, + end; + + this._counters = self._fillCounters(); + start = self._findStart(); + if (!start) { + return null; + } + nextStart = start.startCounter; + + do { + pattern = self._toPattern(nextStart); + if (pattern < 0) { + return null; + } + decodedChar = self._patternToChar(pattern); + if (decodedChar < 0) { + return null; + } + result.push(decodedChar); + nextStart += 8; + if (result.length > 1 && self._isStartEnd(pattern)) { + break; + } + } while (nextStart < self._counters.length); + + // verify end + if (result.length - 2 < self.MIN_ENCODED_CHARS || !self._isStartEnd(pattern)) { + return null; + } + + // verify end white space + if (!self._verifyWhitespace(start.startCounter, nextStart - 8)) { + return null; + } + + if (!self._validateResult(result, start.startCounter)) { + return null; + } + + nextStart = nextStart > self._counters.length ? self._counters.length : nextStart; + end = start.start + self._sumCounters(start.startCounter, nextStart - 8); + + return { + code: result.join(""), + start: start.start, + end: end, + startInfo: start, + decodedCodes: result + }; + }; + + CodabarReader.prototype._verifyWhitespace = function (startCounter, endCounter) { + if (startCounter - 1 <= 0 || this._counters[startCounter - 1] >= this._calculatePatternLength(startCounter) / 2.0) { + if (endCounter + 8 >= this._counters.length || this._counters[endCounter + 7] >= this._calculatePatternLength(endCounter) / 2.0) { + return true; + } + } + return false; + }; + + CodabarReader.prototype._calculatePatternLength = function (offset) { + var i, + sum = 0; + + for (i = offset; i < offset + 7; i++) { + sum += this._counters[i]; + } + + return sum; + }; + + CodabarReader.prototype._thresholdResultPattern = function (result, startCounter) { + var self = this, + categorization = { + space: { + narrow: { size: 0, counts: 0, min: 0, max: Number.MAX_VALUE }, + wide: { size: 0, counts: 0, min: 0, max: Number.MAX_VALUE } + }, + bar: { + narrow: { size: 0, counts: 0, min: 0, max: Number.MAX_VALUE }, + wide: { size: 0, counts: 0, min: 0, max: Number.MAX_VALUE } + } + }, + kind, + cat, + i, + j, + pos = startCounter, + pattern; + + for (i = 0; i < result.length; i++) { + pattern = self._charToPattern(result[i]); + for (j = 6; j >= 0; j--) { + kind = (j & 1) === 2 ? categorization.bar : categorization.space; + cat = (pattern & 1) === 1 ? kind.wide : kind.narrow; + cat.size += self._counters[pos + j]; + cat.counts++; + pattern >>= 1; + } + pos += 8; + } + + ["space", "bar"].forEach(function (key) { + var newkind = categorization[key]; + newkind.wide.min = Math.floor((newkind.narrow.size / newkind.narrow.counts + newkind.wide.size / newkind.wide.counts) / 2); + newkind.narrow.max = Math.ceil(newkind.wide.min); + newkind.wide.max = Math.ceil((newkind.wide.size * self.MAX_ACCEPTABLE + self.PADDING) / newkind.wide.counts); + }); + + return categorization; + }; + + CodabarReader.prototype._charToPattern = function (char) { + var self = this, + charCode = char.charCodeAt(0), + i; + + for (i = 0; i < self.ALPHABET.length; i++) { + if (self.ALPHABET[i] === charCode) { + return self.CHARACTER_ENCODINGS[i]; + } + } + return 0x0; + }; + + CodabarReader.prototype._validateResult = function (result, startCounter) { + var self = this, + thresholds = self._thresholdResultPattern(result, startCounter), + i, + j, + kind, + cat, + size, + pos = startCounter, + pattern; + + for (i = 0; i < result.length; i++) { + pattern = self._charToPattern(result[i]); + for (j = 6; j >= 0; j--) { + kind = (j & 1) === 0 ? thresholds.bar : thresholds.space; + cat = (pattern & 1) === 1 ? kind.wide : kind.narrow; + size = self._counters[pos + j]; + if (size < cat.min || size > cat.max) { + return false; + } + pattern >>= 1; + } + pos += 8; + } + return true; + }; + + CodabarReader.prototype._patternToChar = function (pattern) { + var i, + self = this; + + for (i = 0; i < self.CHARACTER_ENCODINGS.length; i++) { + if (self.CHARACTER_ENCODINGS[i] === pattern) { + return String.fromCharCode(self.ALPHABET[i]); + } + } + return -1; + }; + + CodabarReader.prototype._computeAlternatingThreshold = function (offset, end) { + var i, + min = Number.MAX_VALUE, + max = 0, + counter; + + for (i = offset; i < end; i += 2) { + counter = this._counters[i]; + if (counter > max) { + max = counter; + } + if (counter < min) { + min = counter; + } + } + + return (min + max) / 2.0 | 0; + }; + + CodabarReader.prototype._toPattern = function (offset) { + var numCounters = 7, + end = offset + numCounters, + barThreshold, + spaceThreshold, + bitmask = 1 << numCounters - 1, + pattern = 0, + i, + threshold; + + if (end > this._counters.length) { + return -1; + } + + barThreshold = this._computeAlternatingThreshold(offset, end); + spaceThreshold = this._computeAlternatingThreshold(offset + 1, end); + + for (i = 0; i < numCounters; i++) { + threshold = (i & 1) === 0 ? barThreshold : spaceThreshold; + if (this._counters[offset + i] > threshold) { + pattern |= bitmask; + } + bitmask >>= 1; + } + + return pattern; + }; + + CodabarReader.prototype._isStartEnd = function (pattern) { + var i; + + for (i = 0; i < this.START_END.length; i++) { + if (this.START_END[i] === pattern) { + return true; + } + } + return false; + }; + + CodabarReader.prototype._sumCounters = function (start, end) { + var i, + sum = 0; + + for (i = start; i < end; i++) { + sum += this._counters[i]; + } + return sum; + }; + + CodabarReader.prototype._findStart = function () { + var self = this, + i, + pattern, + start = self._nextUnset(self._row), + end; + + for (i = 1; i < this._counters.length; i++) { + pattern = self._toPattern(i); + if (pattern !== -1 && self._isStartEnd(pattern)) { + // TODO: Look for whitespace ahead + start += self._sumCounters(0, i); + end = start + self._sumCounters(i, i + 8); + return { + start: start, + end: end, + startCounter: i, + endCounter: i + 8 + }; + } + } + }; + + exports["default"] = CodabarReader; + module.exports = exports["default"]; + +/***/ }, +/* 22 */ +/***/ function(module, exports, __webpack_require__) { + + "use strict"; + + Object.defineProperty(exports, "__esModule", { + value: true + }); + + function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; } + + var _ean_reader = __webpack_require__(18); + + var _ean_reader2 = _interopRequireDefault(_ean_reader); + + function UPCReader() { + _ean_reader2["default"].call(this); + } + + var properties = { + FORMAT: { value: "upc_a", writeable: false } + }; + + UPCReader.prototype = Object.create(_ean_reader2["default"].prototype, properties); + UPCReader.prototype.constructor = UPCReader; + + UPCReader.prototype._decode = function () { + var result = _ean_reader2["default"].prototype._decode.call(this); + + if (result && result.code && result.code.length === 13 && result.code.charAt(0) === "0") { + result.code = result.code.substring(1); + return result; + } + return null; + }; + + exports["default"] = UPCReader; + module.exports = exports["default"]; + +/***/ }, +/* 23 */ +/***/ function(module, exports, __webpack_require__) { + + "use strict"; + + Object.defineProperty(exports, "__esModule", { + value: true + }); + + function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; } + + var _ean_reader = __webpack_require__(18); + + var _ean_reader2 = _interopRequireDefault(_ean_reader); + + function EAN8Reader() { + _ean_reader2["default"].call(this); + } + + var properties = { + FORMAT: { value: "ean_8", writeable: false } + }; + + EAN8Reader.prototype = Object.create(_ean_reader2["default"].prototype, properties); + EAN8Reader.prototype.constructor = EAN8Reader; + + EAN8Reader.prototype._decodePayload = function (code, result, decodedCodes) { + var i, + self = this; + + for (i = 0; i < 4; i++) { + code = self._decodeCode(code.end, self.CODE_G_START); + if (!code) { + return null; + } + result.push(code.code); + decodedCodes.push(code); + } + + code = self._findPattern(self.MIDDLE_PATTERN, code.end, true, false); + if (code === null) { + return null; + } + decodedCodes.push(code); + + for (i = 0; i < 4; i++) { + code = self._decodeCode(code.end, self.CODE_G_START); + if (!code) { + return null; + } + decodedCodes.push(code); + result.push(code.code); + } + + return code; + }; + + exports["default"] = EAN8Reader; + module.exports = exports["default"]; + +/***/ }, +/* 24 */ +/***/ function(module, exports, __webpack_require__) { + + "use strict"; + + Object.defineProperty(exports, "__esModule", { + value: true + }); + + function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; } + + var _ean_reader = __webpack_require__(18); + + var _ean_reader2 = _interopRequireDefault(_ean_reader); + + function UPCEReader() { + _ean_reader2["default"].call(this); + } + + var properties = { + CODE_FREQUENCY: { value: [[56, 52, 50, 49, 44, 38, 35, 42, 41, 37], [7, 11, 13, 14, 19, 25, 28, 21, 22, 26]] }, + STOP_PATTERN: { value: [1 / 6 * 7, 1 / 6 * 7, 1 / 6 * 7, 1 / 6 * 7, 1 / 6 * 7, 1 / 6 * 7] }, + FORMAT: { value: "upc_e", writeable: false } + }; + + UPCEReader.prototype = Object.create(_ean_reader2["default"].prototype, properties); + UPCEReader.prototype.constructor = UPCEReader; + + UPCEReader.prototype._decodePayload = function (code, result, decodedCodes) { + var i, + self = this, + codeFrequency = 0x0; + + for (i = 0; i < 6; i++) { + code = self._decodeCode(code.end); + if (!code) { + return null; + } + if (code.code >= self.CODE_G_START) { + code.code = code.code - self.CODE_G_START; + codeFrequency |= 1 << 5 - i; + } + result.push(code.code); + decodedCodes.push(code); + } + if (!self._determineParity(codeFrequency, result)) { + return null; + } + + return code; + }; + + UPCEReader.prototype._determineParity = function (codeFrequency, result) { + var i, nrSystem; + + for (nrSystem = 0; nrSystem < this.CODE_FREQUENCY.length; nrSystem++) { + for (i = 0; i < this.CODE_FREQUENCY[nrSystem].length; i++) { + if (codeFrequency === this.CODE_FREQUENCY[nrSystem][i]) { + result.unshift(nrSystem); + result.push(i); + return true; + } + } + } + return false; + }; + + UPCEReader.prototype._convertToUPCA = function (result) { + var upca = [result[0]], + lastDigit = result[result.length - 2]; + + if (lastDigit <= 2) { + upca = upca.concat(result.slice(1, 3)).concat([lastDigit, 0, 0, 0, 0]).concat(result.slice(3, 6)); + } else if (lastDigit === 3) { + upca = upca.concat(result.slice(1, 4)).concat([0, 0, 0, 0, 0]).concat(result.slice(4, 6)); + } else if (lastDigit === 4) { + upca = upca.concat(result.slice(1, 5)).concat([0, 0, 0, 0, 0, result[5]]); + } else { + upca = upca.concat(result.slice(1, 6)).concat([0, 0, 0, 0, lastDigit]); + } + + upca.push(result[result.length - 1]); + return upca; + }; + + UPCEReader.prototype._checksum = function (result) { + return _ean_reader2["default"].prototype._checksum.call(this, this._convertToUPCA(result)); + }; + + UPCEReader.prototype._findEnd = function (offset, isWhite) { + isWhite = true; + return _ean_reader2["default"].prototype._findEnd.call(this, offset, isWhite); + }; + + UPCEReader.prototype._verifyTrailingWhitespace = function (endInfo) { + var self = this, + trailingWhitespaceEnd; + + trailingWhitespaceEnd = endInfo.end + (endInfo.end - endInfo.start) / 2; + if (trailingWhitespaceEnd < self._row.length) { + if (self._matchRange(endInfo.end, trailingWhitespaceEnd, 0)) { + return endInfo; + } + } + }; + + exports["default"] = UPCEReader; + module.exports = exports["default"]; + +/***/ }, +/* 25 */ +/***/ function(module, exports, __webpack_require__) { + + 'use strict'; + + Object.defineProperty(exports, '__esModule', { + value: true + }); + + function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; } + + var _barcode_reader = __webpack_require__(17); + + var _barcode_reader2 = _interopRequireDefault(_barcode_reader); + + var merge = __webpack_require__(26); + + function I2of5Reader(opts) { + opts = merge(getDefaulConfig(), opts); + _barcode_reader2['default'].call(this, opts); + this.barSpaceRatio = [1, 1]; + if (opts.normalizeBarSpaceWidth) { + this.SINGLE_CODE_ERROR = 0.38; + this.AVG_CODE_ERROR = 0.09; + } + } + + function getDefaulConfig() { + var config = {}; + + Object.keys(I2of5Reader.CONFIG_KEYS).forEach(function (key) { + config[key] = I2of5Reader.CONFIG_KEYS[key]['default']; + }); + return config; + } + + var N = 1, + W = 3, + properties = { + MODULO: { value: 10 }, + START_PATTERN: { value: [N * 2.5, N * 2.5, N * 2.5, N * 2.5] }, + STOP_PATTERN: { value: [N * 2, N * 2, W * 2] }, + CODE_PATTERN: { value: [[N, N, W, W, N], [W, N, N, N, W], [N, W, N, N, W], [W, W, N, N, N], [N, N, W, N, W], [W, N, W, N, N], [N, W, W, N, N], [N, N, N, W, W], [W, N, N, W, N], [N, W, N, W, N]] }, + SINGLE_CODE_ERROR: { value: 0.78, writable: true }, + AVG_CODE_ERROR: { value: 0.38, writable: true }, + MAX_CORRECTION_FACTOR: { value: 5 }, + FORMAT: { value: "i2of5" } + }; + + I2of5Reader.prototype = Object.create(_barcode_reader2['default'].prototype, properties); + I2of5Reader.prototype.constructor = I2of5Reader; + + I2of5Reader.prototype._matchPattern = function (counter, code) { + if (this.config.normalizeBarSpaceWidth) { + var i, + counterSum = [0, 0], + codeSum = [0, 0], + correction = [0, 0], + correctionRatio = this.MAX_CORRECTION_FACTOR, + correctionRatioInverse = 1 / correctionRatio; + + for (i = 0; i < counter.length; i++) { + counterSum[i % 2] += counter[i]; + codeSum[i % 2] += code[i]; + } + correction[0] = codeSum[0] / counterSum[0]; + correction[1] = codeSum[1] / counterSum[1]; + + correction[0] = Math.max(Math.min(correction[0], correctionRatio), correctionRatioInverse); + correction[1] = Math.max(Math.min(correction[1], correctionRatio), correctionRatioInverse); + this.barSpaceRatio = correction; + for (i = 0; i < counter.length; i++) { + counter[i] *= this.barSpaceRatio[i % 2]; + } + } + return _barcode_reader2['default'].prototype._matchPattern.call(this, counter, code); + }; + + I2of5Reader.prototype._findPattern = function (pattern, offset, isWhite, tryHarder) { + var counter = [], + self = this, + i, + counterPos = 0, + bestMatch = { + error: Number.MAX_VALUE, + code: -1, + start: 0, + end: 0 + }, + error, + j, + sum, + normalized, + epsilon = self.AVG_CODE_ERROR; + + isWhite = isWhite || false; + tryHarder = tryHarder || false; + + if (!offset) { + offset = self._nextSet(self._row); + } + + for (i = 0; i < pattern.length; i++) { + counter[i] = 0; + } + + for (i = offset; i < self._row.length; i++) { + if (self._row[i] ^ isWhite) { + counter[counterPos]++; + } else { + if (counterPos === counter.length - 1) { + sum = 0; + for (j = 0; j < counter.length; j++) { + sum += counter[j]; + } + normalized = self._normalize(counter); + if (normalized) { + error = self._matchPattern(normalized, pattern); + + if (error < epsilon) { + bestMatch.error = error; + bestMatch.start = i - sum; + bestMatch.end = i; + return bestMatch; + } + } + if (tryHarder) { + for (j = 0; j < counter.length - 2; j++) { + counter[j] = counter[j + 2]; + } + counter[counter.length - 2] = 0; + counter[counter.length - 1] = 0; + counterPos--; + } else { + return null; + } + } else { + counterPos++; + } + counter[counterPos] = 1; + isWhite = !isWhite; + } + } + return null; + }; + + I2of5Reader.prototype._findStart = function () { + var self = this, + leadingWhitespaceStart, + offset = self._nextSet(self._row), + startInfo, + narrowBarWidth = 1; + + while (!startInfo) { + startInfo = self._findPattern(self.START_PATTERN, offset, false, true); + if (!startInfo) { + return null; + } + narrowBarWidth = Math.floor((startInfo.end - startInfo.start) / 4); + leadingWhitespaceStart = startInfo.start - narrowBarWidth * 10; + if (leadingWhitespaceStart >= 0) { + if (self._matchRange(leadingWhitespaceStart, startInfo.start, 0)) { + return startInfo; + } + } + offset = startInfo.end; + startInfo = null; + } + }; + + I2of5Reader.prototype._verifyTrailingWhitespace = function (endInfo) { + var self = this, + trailingWhitespaceEnd; + + trailingWhitespaceEnd = endInfo.end + (endInfo.end - endInfo.start) / 2; + if (trailingWhitespaceEnd < self._row.length) { + if (self._matchRange(endInfo.end, trailingWhitespaceEnd, 0)) { + return endInfo; + } + } + return null; + }; + + I2of5Reader.prototype._findEnd = function () { + var self = this, + endInfo, + tmp; + + self._row.reverse(); + endInfo = self._findPattern(self.STOP_PATTERN); + self._row.reverse(); + + if (endInfo === null) { + return null; + } + + // reverse numbers + tmp = endInfo.start; + endInfo.start = self._row.length - endInfo.end; + endInfo.end = self._row.length - tmp; + + return endInfo !== null ? self._verifyTrailingWhitespace(endInfo) : null; + }; + + I2of5Reader.prototype._decodePair = function (counterPair) { + var i, + code, + codes = [], + self = this; + + for (i = 0; i < counterPair.length; i++) { + code = self._decodeCode(counterPair[i]); + if (!code) { + return null; + } + codes.push(code); + } + return codes; + }; + + I2of5Reader.prototype._decodeCode = function (counter) { + var j, + self = this, + sum = 0, + normalized, + error, + epsilon = self.AVG_CODE_ERROR, + code, + bestMatch = { + error: Number.MAX_VALUE, + code: -1, + start: 0, + end: 0 + }; + + for (j = 0; j < counter.length; j++) { + sum += counter[j]; + } + normalized = self._normalize(counter); + if (normalized) { + for (code = 0; code < self.CODE_PATTERN.length; code++) { + error = self._matchPattern(normalized, self.CODE_PATTERN[code]); + if (error < bestMatch.error) { + bestMatch.code = code; + bestMatch.error = error; + } + } + if (bestMatch.error < epsilon) { + return bestMatch; + } + } + return null; + }; + + I2of5Reader.prototype._decodePayload = function (counters, result, decodedCodes) { + var i, + self = this, + pos = 0, + counterLength = counters.length, + counterPair = [[0, 0, 0, 0, 0], [0, 0, 0, 0, 0]], + codes; + + while (pos < counterLength) { + for (i = 0; i < 5; i++) { + counterPair[0][i] = counters[pos] * this.barSpaceRatio[0]; + counterPair[1][i] = counters[pos + 1] * this.barSpaceRatio[1]; + pos += 2; + } + codes = self._decodePair(counterPair); + if (!codes) { + return null; + } + for (i = 0; i < codes.length; i++) { + result.push(codes[i].code + ""); + decodedCodes.push(codes[i]); + } + } + return codes; + }; + + I2of5Reader.prototype._verifyCounterLength = function (counters) { + return counters.length % 10 === 0; + }; + + I2of5Reader.prototype._decode = function () { + var startInfo, + endInfo, + self = this, + code, + result = [], + decodedCodes = [], + counters; + + startInfo = self._findStart(); + if (!startInfo) { + return null; + } + decodedCodes.push(startInfo); + + endInfo = self._findEnd(); + if (!endInfo) { + return null; + } + + counters = self._fillCounters(startInfo.end, endInfo.start, false); + if (!self._verifyCounterLength(counters)) { + return null; + } + code = self._decodePayload(counters, result, decodedCodes); + if (!code) { + return null; + } + if (result.length % 2 !== 0 || result.length < 6) { + return null; + } + + decodedCodes.push(endInfo); + return { + code: result.join(""), + start: startInfo.start, + end: endInfo.end, + startInfo: startInfo, + decodedCodes: decodedCodes + }; + }; + + I2of5Reader.CONFIG_KEYS = { + normalizeBarSpaceWidth: { + 'type': 'boolean', + 'default': false, + 'description': 'If true, the reader tries to normalize the' + 'width-difference between bars and spaces' + } + }; + + exports['default'] = I2of5Reader; + module.exports = exports['default']; + +/***/ }, +/* 26 */ +/***/ function(module, exports, __webpack_require__) { + + var baseMerge = __webpack_require__(27), + createAssigner = __webpack_require__(54); + + /** + * Recursively merges own enumerable properties of the source object(s), that + * don't resolve to `undefined` into the destination object. Subsequent sources + * overwrite property assignments of previous sources. If `customizer` is + * provided it's invoked to produce the merged values of the destination and + * source properties. If `customizer` returns `undefined` merging is handled + * by the method instead. The `customizer` is bound to `thisArg` and invoked + * with five arguments: (objectValue, sourceValue, key, object, source). + * + * @static + * @memberOf _ + * @category Object + * @param {Object} object The destination object. + * @param {...Object} [sources] The source objects. + * @param {Function} [customizer] The function to customize assigned values. + * @param {*} [thisArg] The `this` binding of `customizer`. + * @returns {Object} Returns `object`. + * @example + * + * var users = { + * 'data': [{ 'user': 'barney' }, { 'user': 'fred' }] + * }; + * + * var ages = { + * 'data': [{ 'age': 36 }, { 'age': 40 }] + * }; + * + * _.merge(users, ages); + * // => { 'data': [{ 'user': 'barney', 'age': 36 }, { 'user': 'fred', 'age': 40 }] } + * + * // using a customizer callback + * var object = { + * 'fruits': ['apple'], + * 'vegetables': ['beet'] + * }; + * + * var other = { + * 'fruits': ['banana'], + * 'vegetables': ['carrot'] + * }; + * + * _.merge(object, other, function(a, b) { + * if (_.isArray(a)) { + * return a.concat(b); + * } + * }); + * // => { 'fruits': ['apple', 'banana'], 'vegetables': ['beet', 'carrot'] } + */ + var merge = createAssigner(baseMerge); + + module.exports = merge; + + +/***/ }, +/* 27 */ +/***/ function(module, exports, __webpack_require__) { + + var arrayEach = __webpack_require__(28), + baseMergeDeep = __webpack_require__(29), + isArray = __webpack_require__(37), + isArrayLike = __webpack_require__(32), + isObject = __webpack_require__(41), + isObjectLike = __webpack_require__(36), + isTypedArray = __webpack_require__(49), + keys = __webpack_require__(52); + + /** + * The base implementation of `_.merge` without support for argument juggling, + * multiple sources, and `this` binding `customizer` functions. + * + * @private + * @param {Object} object The destination object. + * @param {Object} source The source object. + * @param {Function} [customizer] The function to customize merged values. + * @param {Array} [stackA=[]] Tracks traversed source objects. + * @param {Array} [stackB=[]] Associates values with source counterparts. + * @returns {Object} Returns `object`. + */ + function baseMerge(object, source, customizer, stackA, stackB) { + if (!isObject(object)) { + return object; + } + var isSrcArr = isArrayLike(source) && (isArray(source) || isTypedArray(source)), + props = isSrcArr ? undefined : keys(source); + + arrayEach(props || source, function(srcValue, key) { + if (props) { + key = srcValue; + srcValue = source[key]; + } + if (isObjectLike(srcValue)) { + stackA || (stackA = []); + stackB || (stackB = []); + baseMergeDeep(object, source, key, baseMerge, customizer, stackA, stackB); + } + else { + var value = object[key], + result = customizer ? customizer(value, srcValue, key, object, source) : undefined, + isCommon = result === undefined; + + if (isCommon) { + result = srcValue; + } + if ((result !== undefined || (isSrcArr && !(key in object))) && + (isCommon || (result === result ? (result !== value) : (value === value)))) { + object[key] = result; + } + } + }); + return object; + } + + module.exports = baseMerge; + + +/***/ }, +/* 28 */ +/***/ function(module, exports) { + + /** + * A specialized version of `_.forEach` for arrays without support for callback + * shorthands and `this` binding. + * + * @private + * @param {Array} array The array to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Array} Returns `array`. + */ + function arrayEach(array, iteratee) { + var index = -1, + length = array.length; + + while (++index < length) { + if (iteratee(array[index], index, array) === false) { + break; + } + } + return array; + } + + module.exports = arrayEach; + + +/***/ }, +/* 29 */ +/***/ function(module, exports, __webpack_require__) { + + var arrayCopy = __webpack_require__(30), + isArguments = __webpack_require__(31), + isArray = __webpack_require__(37), + isArrayLike = __webpack_require__(32), + isPlainObject = __webpack_require__(42), + isTypedArray = __webpack_require__(49), + toPlainObject = __webpack_require__(50); + + /** + * A specialized version of `baseMerge` for arrays and objects which performs + * deep merges and tracks traversed objects enabling objects with circular + * references to be merged. + * + * @private + * @param {Object} object The destination object. + * @param {Object} source The source object. + * @param {string} key The key of the value to merge. + * @param {Function} mergeFunc The function to merge values. + * @param {Function} [customizer] The function to customize merged values. + * @param {Array} [stackA=[]] Tracks traversed source objects. + * @param {Array} [stackB=[]] Associates values with source counterparts. + * @returns {boolean} Returns `true` if the objects are equivalent, else `false`. + */ + function baseMergeDeep(object, source, key, mergeFunc, customizer, stackA, stackB) { + var length = stackA.length, + srcValue = source[key]; + + while (length--) { + if (stackA[length] == srcValue) { + object[key] = stackB[length]; + return; + } + } + var value = object[key], + result = customizer ? customizer(value, srcValue, key, object, source) : undefined, + isCommon = result === undefined; + + if (isCommon) { + result = srcValue; + if (isArrayLike(srcValue) && (isArray(srcValue) || isTypedArray(srcValue))) { + result = isArray(value) + ? value + : (isArrayLike(value) ? arrayCopy(value) : []); + } + else if (isPlainObject(srcValue) || isArguments(srcValue)) { + result = isArguments(value) + ? toPlainObject(value) + : (isPlainObject(value) ? value : {}); + } + else { + isCommon = false; + } + } + // Add the source value to the stack of traversed objects and associate + // it with its merged value. + stackA.push(srcValue); + stackB.push(result); + + if (isCommon) { + // Recursively merge objects and arrays (susceptible to call stack limits). + object[key] = mergeFunc(result, srcValue, customizer, stackA, stackB); + } else if (result === result ? (result !== value) : (value === value)) { + object[key] = result; + } + } + + module.exports = baseMergeDeep; + + +/***/ }, +/* 30 */ +/***/ function(module, exports) { + + /** + * Copies the values of `source` to `array`. + * + * @private + * @param {Array} source The array to copy values from. + * @param {Array} [array=[]] The array to copy values to. + * @returns {Array} Returns `array`. + */ + function arrayCopy(source, array) { + var index = -1, + length = source.length; + + array || (array = Array(length)); + while (++index < length) { + array[index] = source[index]; + } + return array; + } + + module.exports = arrayCopy; + + +/***/ }, +/* 31 */ +/***/ function(module, exports, __webpack_require__) { + + var isArrayLike = __webpack_require__(32), + isObjectLike = __webpack_require__(36); + + /** Used for native method references. */ + var objectProto = Object.prototype; + + /** Used to check objects for own properties. */ + var hasOwnProperty = objectProto.hasOwnProperty; + + /** Native method references. */ + var propertyIsEnumerable = objectProto.propertyIsEnumerable; + + /** + * Checks if `value` is classified as an `arguments` object. + * + * @static + * @memberOf _ + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`. + * @example + * + * _.isArguments(function() { return arguments; }()); + * // => true + * + * _.isArguments([1, 2, 3]); + * // => false + */ + function isArguments(value) { + return isObjectLike(value) && isArrayLike(value) && + hasOwnProperty.call(value, 'callee') && !propertyIsEnumerable.call(value, 'callee'); + } + + module.exports = isArguments; + + +/***/ }, +/* 32 */ +/***/ function(module, exports, __webpack_require__) { + + var getLength = __webpack_require__(33), + isLength = __webpack_require__(35); + + /** + * Checks if `value` is array-like. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is array-like, else `false`. + */ + function isArrayLike(value) { + return value != null && isLength(getLength(value)); + } + + module.exports = isArrayLike; + + +/***/ }, +/* 33 */ +/***/ function(module, exports, __webpack_require__) { + + var baseProperty = __webpack_require__(34); + + /** + * Gets the "length" property value of `object`. + * + * **Note:** This function is used to avoid a [JIT bug](https://bugs.webkit.org/show_bug.cgi?id=142792) + * that affects Safari on at least iOS 8.1-8.3 ARM64. + * + * @private + * @param {Object} object The object to query. + * @returns {*} Returns the "length" value. + */ + var getLength = baseProperty('length'); + + module.exports = getLength; + + +/***/ }, +/* 34 */ +/***/ function(module, exports) { + + /** + * The base implementation of `_.property` without support for deep paths. + * + * @private + * @param {string} key The key of the property to get. + * @returns {Function} Returns the new function. + */ + function baseProperty(key) { + return function(object) { + return object == null ? undefined : object[key]; + }; + } + + module.exports = baseProperty; + + +/***/ }, +/* 35 */ +/***/ function(module, exports) { + + /** + * Used as the [maximum length](http://ecma-international.org/ecma-262/6.0/#sec-number.max_safe_integer) + * of an array-like value. + */ + var MAX_SAFE_INTEGER = 9007199254740991; + + /** + * Checks if `value` is a valid array-like length. + * + * **Note:** This function is based on [`ToLength`](http://ecma-international.org/ecma-262/6.0/#sec-tolength). + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a valid length, else `false`. + */ + function isLength(value) { + return typeof value == 'number' && value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER; + } + + module.exports = isLength; + + +/***/ }, +/* 36 */ +/***/ function(module, exports) { + + /** + * Checks if `value` is object-like. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is object-like, else `false`. + */ + function isObjectLike(value) { + return !!value && typeof value == 'object'; + } + + module.exports = isObjectLike; + + +/***/ }, +/* 37 */ +/***/ function(module, exports, __webpack_require__) { + + var getNative = __webpack_require__(38), + isLength = __webpack_require__(35), + isObjectLike = __webpack_require__(36); + + /** `Object#toString` result references. */ + var arrayTag = '[object Array]'; + + /** Used for native method references. */ + var objectProto = Object.prototype; + + /** + * Used to resolve the [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring) + * of values. + */ + var objToString = objectProto.toString; + + /* Native method references for those with the same name as other `lodash` methods. */ + var nativeIsArray = getNative(Array, 'isArray'); + + /** + * Checks if `value` is classified as an `Array` object. + * + * @static + * @memberOf _ + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`. + * @example + * + * _.isArray([1, 2, 3]); + * // => true + * + * _.isArray(function() { return arguments; }()); + * // => false + */ + var isArray = nativeIsArray || function(value) { + return isObjectLike(value) && isLength(value.length) && objToString.call(value) == arrayTag; + }; + + module.exports = isArray; + + +/***/ }, +/* 38 */ +/***/ function(module, exports, __webpack_require__) { + + var isNative = __webpack_require__(39); + + /** + * Gets the native function at `key` of `object`. + * + * @private + * @param {Object} object The object to query. + * @param {string} key The key of the method to get. + * @returns {*} Returns the function if it's native, else `undefined`. + */ + function getNative(object, key) { + var value = object == null ? undefined : object[key]; + return isNative(value) ? value : undefined; + } + + module.exports = getNative; + + +/***/ }, +/* 39 */ +/***/ function(module, exports, __webpack_require__) { + + var isFunction = __webpack_require__(40), + isObjectLike = __webpack_require__(36); + + /** Used to detect host constructors (Safari > 5). */ + var reIsHostCtor = /^\[object .+?Constructor\]$/; + + /** Used for native method references. */ + var objectProto = Object.prototype; + + /** Used to resolve the decompiled source of functions. */ + var fnToString = Function.prototype.toString; + + /** Used to check objects for own properties. */ + var hasOwnProperty = objectProto.hasOwnProperty; + + /** Used to detect if a method is native. */ + var reIsNative = RegExp('^' + + fnToString.call(hasOwnProperty).replace(/[\\^$.*+?()[\]{}|]/g, '\\$&') + .replace(/hasOwnProperty|(function).*?(?=\\\()| for .+?(?=\\\])/g, '$1.*?') + '$' + ); + + /** + * Checks if `value` is a native function. + * + * @static + * @memberOf _ + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a native function, else `false`. + * @example + * + * _.isNative(Array.prototype.push); + * // => true + * + * _.isNative(_); + * // => false + */ + function isNative(value) { + if (value == null) { + return false; + } + if (isFunction(value)) { + return reIsNative.test(fnToString.call(value)); + } + return isObjectLike(value) && reIsHostCtor.test(value); + } + + module.exports = isNative; + + +/***/ }, +/* 40 */ +/***/ function(module, exports, __webpack_require__) { + + var isObject = __webpack_require__(41); + + /** `Object#toString` result references. */ + var funcTag = '[object Function]'; + + /** Used for native method references. */ + var objectProto = Object.prototype; + + /** + * Used to resolve the [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring) + * of values. + */ + var objToString = objectProto.toString; + + /** + * Checks if `value` is classified as a `Function` object. + * + * @static + * @memberOf _ + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`. + * @example + * + * _.isFunction(_); + * // => true + * + * _.isFunction(/abc/); + * // => false + */ + function isFunction(value) { + // The use of `Object#toString` avoids issues with the `typeof` operator + // in older versions of Chrome and Safari which return 'function' for regexes + // and Safari 8 which returns 'object' for typed array constructors. + return isObject(value) && objToString.call(value) == funcTag; + } + + module.exports = isFunction; + + +/***/ }, +/* 41 */ +/***/ function(module, exports) { + + /** + * Checks if `value` is the [language type](https://es5.github.io/#x8) of `Object`. + * (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`) + * + * @static + * @memberOf _ + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an object, else `false`. + * @example + * + * _.isObject({}); + * // => true + * + * _.isObject([1, 2, 3]); + * // => true + * + * _.isObject(1); + * // => false + */ + function isObject(value) { + // Avoid a V8 JIT bug in Chrome 19-20. + // See https://code.google.com/p/v8/issues/detail?id=2291 for more details. + var type = typeof value; + return !!value && (type == 'object' || type == 'function'); + } + + module.exports = isObject; + + +/***/ }, +/* 42 */ +/***/ function(module, exports, __webpack_require__) { + + var baseForIn = __webpack_require__(43), + isArguments = __webpack_require__(31), + isObjectLike = __webpack_require__(36); + + /** `Object#toString` result references. */ + var objectTag = '[object Object]'; + + /** Used for native method references. */ + var objectProto = Object.prototype; + + /** Used to check objects for own properties. */ + var hasOwnProperty = objectProto.hasOwnProperty; + + /** + * Used to resolve the [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring) + * of values. + */ + var objToString = objectProto.toString; + + /** + * Checks if `value` is a plain object, that is, an object created by the + * `Object` constructor or one with a `[[Prototype]]` of `null`. + * + * **Note:** This method assumes objects created by the `Object` constructor + * have no inherited enumerable properties. + * + * @static + * @memberOf _ + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a plain object, else `false`. + * @example + * + * function Foo() { + * this.a = 1; + * } + * + * _.isPlainObject(new Foo); + * // => false + * + * _.isPlainObject([1, 2, 3]); + * // => false + * + * _.isPlainObject({ 'x': 0, 'y': 0 }); + * // => true + * + * _.isPlainObject(Object.create(null)); + * // => true + */ + function isPlainObject(value) { + var Ctor; + + // Exit early for non `Object` objects. + if (!(isObjectLike(value) && objToString.call(value) == objectTag && !isArguments(value)) || + (!hasOwnProperty.call(value, 'constructor') && (Ctor = value.constructor, typeof Ctor == 'function' && !(Ctor instanceof Ctor)))) { + return false; + } + // IE < 9 iterates inherited properties before own properties. If the first + // iterated property is an object's own property then there are no inherited + // enumerable properties. + var result; + // In most environments an object's own properties are iterated before + // its inherited properties. If the last iterated property is an object's + // own property then there are no inherited enumerable properties. + baseForIn(value, function(subValue, key) { + result = key; + }); + return result === undefined || hasOwnProperty.call(value, result); + } + + module.exports = isPlainObject; + + +/***/ }, +/* 43 */ +/***/ function(module, exports, __webpack_require__) { + + var baseFor = __webpack_require__(44), + keysIn = __webpack_require__(47); + + /** + * The base implementation of `_.forIn` without support for callback + * shorthands and `this` binding. + * + * @private + * @param {Object} object The object to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Object} Returns `object`. + */ + function baseForIn(object, iteratee) { + return baseFor(object, iteratee, keysIn); + } + + module.exports = baseForIn; + + +/***/ }, +/* 44 */ +/***/ function(module, exports, __webpack_require__) { + + var createBaseFor = __webpack_require__(45); + + /** + * The base implementation of `baseForIn` and `baseForOwn` which iterates + * over `object` properties returned by `keysFunc` invoking `iteratee` for + * each property. Iteratee functions may exit iteration early by explicitly + * returning `false`. + * + * @private + * @param {Object} object The object to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @param {Function} keysFunc The function to get the keys of `object`. + * @returns {Object} Returns `object`. + */ + var baseFor = createBaseFor(); + + module.exports = baseFor; + + +/***/ }, +/* 45 */ +/***/ function(module, exports, __webpack_require__) { + + var toObject = __webpack_require__(46); + + /** + * Creates a base function for `_.forIn` or `_.forInRight`. + * + * @private + * @param {boolean} [fromRight] Specify iterating from right to left. + * @returns {Function} Returns the new base function. + */ + function createBaseFor(fromRight) { + return function(object, iteratee, keysFunc) { + var iterable = toObject(object), + props = keysFunc(object), + length = props.length, + index = fromRight ? length : -1; + + while ((fromRight ? index-- : ++index < length)) { + var key = props[index]; + if (iteratee(iterable[key], key, iterable) === false) { + break; + } + } + return object; + }; + } + + module.exports = createBaseFor; + + +/***/ }, +/* 46 */ +/***/ function(module, exports, __webpack_require__) { + + var isObject = __webpack_require__(41); + + /** + * Converts `value` to an object if it's not one. + * + * @private + * @param {*} value The value to process. + * @returns {Object} Returns the object. + */ + function toObject(value) { + return isObject(value) ? value : Object(value); + } + + module.exports = toObject; + + +/***/ }, +/* 47 */ +/***/ function(module, exports, __webpack_require__) { + + var isArguments = __webpack_require__(31), + isArray = __webpack_require__(37), + isIndex = __webpack_require__(48), + isLength = __webpack_require__(35), + isObject = __webpack_require__(41); + + /** Used for native method references. */ + var objectProto = Object.prototype; + + /** Used to check objects for own properties. */ + var hasOwnProperty = objectProto.hasOwnProperty; + + /** + * Creates an array of the own and inherited enumerable property names of `object`. + * + * **Note:** Non-object values are coerced to objects. + * + * @static + * @memberOf _ + * @category Object + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names. + * @example + * + * function Foo() { + * this.a = 1; + * this.b = 2; + * } + * + * Foo.prototype.c = 3; + * + * _.keysIn(new Foo); + * // => ['a', 'b', 'c'] (iteration order is not guaranteed) + */ + function keysIn(object) { + if (object == null) { + return []; + } + if (!isObject(object)) { + object = Object(object); + } + var length = object.length; + length = (length && isLength(length) && + (isArray(object) || isArguments(object)) && length) || 0; + + var Ctor = object.constructor, + index = -1, + isProto = typeof Ctor == 'function' && Ctor.prototype === object, + result = Array(length), + skipIndexes = length > 0; + + while (++index < length) { + result[index] = (index + ''); + } + for (var key in object) { + if (!(skipIndexes && isIndex(key, length)) && + !(key == 'constructor' && (isProto || !hasOwnProperty.call(object, key)))) { + result.push(key); + } + } + return result; + } + + module.exports = keysIn; + + +/***/ }, +/* 48 */ +/***/ function(module, exports) { + + /** Used to detect unsigned integer values. */ + var reIsUint = /^\d+$/; + + /** + * Used as the [maximum length](http://ecma-international.org/ecma-262/6.0/#sec-number.max_safe_integer) + * of an array-like value. + */ + var MAX_SAFE_INTEGER = 9007199254740991; + + /** + * Checks if `value` is a valid array-like index. + * + * @private + * @param {*} value The value to check. + * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index. + * @returns {boolean} Returns `true` if `value` is a valid index, else `false`. + */ + function isIndex(value, length) { + value = (typeof value == 'number' || reIsUint.test(value)) ? +value : -1; + length = length == null ? MAX_SAFE_INTEGER : length; + return value > -1 && value % 1 == 0 && value < length; + } + + module.exports = isIndex; + + +/***/ }, +/* 49 */ +/***/ function(module, exports, __webpack_require__) { + + var isLength = __webpack_require__(35), + isObjectLike = __webpack_require__(36); + + /** `Object#toString` result references. */ + var argsTag = '[object Arguments]', + arrayTag = '[object Array]', + boolTag = '[object Boolean]', + dateTag = '[object Date]', + errorTag = '[object Error]', + funcTag = '[object Function]', + mapTag = '[object Map]', + numberTag = '[object Number]', + objectTag = '[object Object]', + regexpTag = '[object RegExp]', + setTag = '[object Set]', + stringTag = '[object String]', + weakMapTag = '[object WeakMap]'; + + var arrayBufferTag = '[object ArrayBuffer]', + float32Tag = '[object Float32Array]', + float64Tag = '[object Float64Array]', + int8Tag = '[object Int8Array]', + int16Tag = '[object Int16Array]', + int32Tag = '[object Int32Array]', + uint8Tag = '[object Uint8Array]', + uint8ClampedTag = '[object Uint8ClampedArray]', + uint16Tag = '[object Uint16Array]', + uint32Tag = '[object Uint32Array]'; + + /** Used to identify `toStringTag` values of typed arrays. */ + var typedArrayTags = {}; + typedArrayTags[float32Tag] = typedArrayTags[float64Tag] = + typedArrayTags[int8Tag] = typedArrayTags[int16Tag] = + typedArrayTags[int32Tag] = typedArrayTags[uint8Tag] = + typedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] = + typedArrayTags[uint32Tag] = true; + typedArrayTags[argsTag] = typedArrayTags[arrayTag] = + typedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] = + typedArrayTags[dateTag] = typedArrayTags[errorTag] = + typedArrayTags[funcTag] = typedArrayTags[mapTag] = + typedArrayTags[numberTag] = typedArrayTags[objectTag] = + typedArrayTags[regexpTag] = typedArrayTags[setTag] = + typedArrayTags[stringTag] = typedArrayTags[weakMapTag] = false; + + /** Used for native method references. */ + var objectProto = Object.prototype; + + /** + * Used to resolve the [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring) + * of values. + */ + var objToString = objectProto.toString; + + /** + * Checks if `value` is classified as a typed array. + * + * @static + * @memberOf _ + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`. + * @example + * + * _.isTypedArray(new Uint8Array); + * // => true + * + * _.isTypedArray([]); + * // => false + */ + function isTypedArray(value) { + return isObjectLike(value) && isLength(value.length) && !!typedArrayTags[objToString.call(value)]; + } + + module.exports = isTypedArray; + + +/***/ }, +/* 50 */ +/***/ function(module, exports, __webpack_require__) { + + var baseCopy = __webpack_require__(51), + keysIn = __webpack_require__(47); + + /** + * Converts `value` to a plain object flattening inherited enumerable + * properties of `value` to own properties of the plain object. + * + * @static + * @memberOf _ + * @category Lang + * @param {*} value The value to convert. + * @returns {Object} Returns the converted plain object. + * @example + * + * function Foo() { + * this.b = 2; + * } + * + * Foo.prototype.c = 3; + * + * _.assign({ 'a': 1 }, new Foo); + * // => { 'a': 1, 'b': 2 } + * + * _.assign({ 'a': 1 }, _.toPlainObject(new Foo)); + * // => { 'a': 1, 'b': 2, 'c': 3 } + */ + function toPlainObject(value) { + return baseCopy(value, keysIn(value)); + } + + module.exports = toPlainObject; + + +/***/ }, +/* 51 */ +/***/ function(module, exports) { + + /** + * Copies properties of `source` to `object`. + * + * @private + * @param {Object} source The object to copy properties from. + * @param {Array} props The property names to copy. + * @param {Object} [object={}] The object to copy properties to. + * @returns {Object} Returns `object`. + */ + function baseCopy(source, props, object) { + object || (object = {}); + + var index = -1, + length = props.length; + + while (++index < length) { + var key = props[index]; + object[key] = source[key]; + } + return object; + } + + module.exports = baseCopy; + + +/***/ }, +/* 52 */ +/***/ function(module, exports, __webpack_require__) { + + var getNative = __webpack_require__(38), + isArrayLike = __webpack_require__(32), + isObject = __webpack_require__(41), + shimKeys = __webpack_require__(53); + + /* Native method references for those with the same name as other `lodash` methods. */ + var nativeKeys = getNative(Object, 'keys'); + + /** + * Creates an array of the own enumerable property names of `object`. + * + * **Note:** Non-object values are coerced to objects. See the + * [ES spec](http://ecma-international.org/ecma-262/6.0/#sec-object.keys) + * for more details. + * + * @static + * @memberOf _ + * @category Object + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names. + * @example + * + * function Foo() { + * this.a = 1; + * this.b = 2; + * } + * + * Foo.prototype.c = 3; + * + * _.keys(new Foo); + * // => ['a', 'b'] (iteration order is not guaranteed) + * + * _.keys('hi'); + * // => ['0', '1'] + */ + var keys = !nativeKeys ? shimKeys : function(object) { + var Ctor = object == null ? undefined : object.constructor; + if ((typeof Ctor == 'function' && Ctor.prototype === object) || + (typeof object != 'function' && isArrayLike(object))) { + return shimKeys(object); + } + return isObject(object) ? nativeKeys(object) : []; + }; + + module.exports = keys; + + +/***/ }, +/* 53 */ +/***/ function(module, exports, __webpack_require__) { + + var isArguments = __webpack_require__(31), + isArray = __webpack_require__(37), + isIndex = __webpack_require__(48), + isLength = __webpack_require__(35), + keysIn = __webpack_require__(47); + + /** Used for native method references. */ + var objectProto = Object.prototype; + + /** Used to check objects for own properties. */ + var hasOwnProperty = objectProto.hasOwnProperty; + + /** + * A fallback implementation of `Object.keys` which creates an array of the + * own enumerable property names of `object`. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names. + */ + function shimKeys(object) { + var props = keysIn(object), + propsLength = props.length, + length = propsLength && object.length; + + var allowIndexes = !!length && isLength(length) && + (isArray(object) || isArguments(object)); + + var index = -1, + result = []; + + while (++index < propsLength) { + var key = props[index]; + if ((allowIndexes && isIndex(key, length)) || hasOwnProperty.call(object, key)) { + result.push(key); + } + } + return result; + } + + module.exports = shimKeys; + + +/***/ }, +/* 54 */ +/***/ function(module, exports, __webpack_require__) { + + var bindCallback = __webpack_require__(55), + isIterateeCall = __webpack_require__(57), + restParam = __webpack_require__(58); + + /** + * Creates a `_.assign`, `_.defaults`, or `_.merge` function. + * + * @private + * @param {Function} assigner The function to assign values. + * @returns {Function} Returns the new assigner function. + */ + function createAssigner(assigner) { + return restParam(function(object, sources) { + var index = -1, + length = object == null ? 0 : sources.length, + customizer = length > 2 ? sources[length - 2] : undefined, + guard = length > 2 ? sources[2] : undefined, + thisArg = length > 1 ? sources[length - 1] : undefined; + + if (typeof customizer == 'function') { + customizer = bindCallback(customizer, thisArg, 5); + length -= 2; + } else { + customizer = typeof thisArg == 'function' ? thisArg : undefined; + length -= (customizer ? 1 : 0); + } + if (guard && isIterateeCall(sources[0], sources[1], guard)) { + customizer = length < 3 ? undefined : customizer; + length = 1; + } + while (++index < length) { + var source = sources[index]; + if (source) { + assigner(object, source, customizer); + } + } + return object; + }); + } + + module.exports = createAssigner; + + +/***/ }, +/* 55 */ +/***/ function(module, exports, __webpack_require__) { + + var identity = __webpack_require__(56); + + /** + * A specialized version of `baseCallback` which only supports `this` binding + * and specifying the number of arguments to provide to `func`. + * + * @private + * @param {Function} func The function to bind. + * @param {*} thisArg The `this` binding of `func`. + * @param {number} [argCount] The number of arguments to provide to `func`. + * @returns {Function} Returns the callback. + */ + function bindCallback(func, thisArg, argCount) { + if (typeof func != 'function') { + return identity; + } + if (thisArg === undefined) { + return func; + } + switch (argCount) { + case 1: return function(value) { + return func.call(thisArg, value); + }; + case 3: return function(value, index, collection) { + return func.call(thisArg, value, index, collection); + }; + case 4: return function(accumulator, value, index, collection) { + return func.call(thisArg, accumulator, value, index, collection); + }; + case 5: return function(value, other, key, object, source) { + return func.call(thisArg, value, other, key, object, source); + }; + } + return function() { + return func.apply(thisArg, arguments); + }; + } + + module.exports = bindCallback; + + +/***/ }, +/* 56 */ +/***/ function(module, exports) { + + /** + * This method returns the first argument provided to it. + * + * @static + * @memberOf _ + * @category Utility + * @param {*} value Any value. + * @returns {*} Returns `value`. + * @example + * + * var object = { 'user': 'fred' }; + * + * _.identity(object) === object; + * // => true + */ + function identity(value) { + return value; + } + + module.exports = identity; + + +/***/ }, +/* 57 */ +/***/ function(module, exports, __webpack_require__) { + + var isArrayLike = __webpack_require__(32), + isIndex = __webpack_require__(48), + isObject = __webpack_require__(41); + + /** + * Checks if the provided arguments are from an iteratee call. + * + * @private + * @param {*} value The potential iteratee value argument. + * @param {*} index The potential iteratee index or key argument. + * @param {*} object The potential iteratee object argument. + * @returns {boolean} Returns `true` if the arguments are from an iteratee call, else `false`. + */ + function isIterateeCall(value, index, object) { + if (!isObject(object)) { + return false; + } + var type = typeof index; + if (type == 'number' + ? (isArrayLike(object) && isIndex(index, object.length)) + : (type == 'string' && index in object)) { + var other = object[index]; + return value === value ? (value === other) : (other !== other); + } + return false; + } + + module.exports = isIterateeCall; + + +/***/ }, +/* 58 */ +/***/ function(module, exports) { + + /** Used as the `TypeError` message for "Functions" methods. */ + var FUNC_ERROR_TEXT = 'Expected a function'; + + /* Native method references for those with the same name as other `lodash` methods. */ + var nativeMax = Math.max; + + /** + * Creates a function that invokes `func` with the `this` binding of the + * created function and arguments from `start` and beyond provided as an array. + * + * **Note:** This method is based on the [rest parameter](https://developer.mozilla.org/Web/JavaScript/Reference/Functions/rest_parameters). + * + * @static + * @memberOf _ + * @category Function + * @param {Function} func The function to apply a rest parameter to. + * @param {number} [start=func.length-1] The start position of the rest parameter. + * @returns {Function} Returns the new function. + * @example + * + * var say = _.restParam(function(what, names) { + * return what + ' ' + _.initial(names).join(', ') + + * (_.size(names) > 1 ? ', & ' : '') + _.last(names); + * }); + * + * say('hello', 'fred', 'barney', 'pebbles'); + * // => 'hello fred, barney, & pebbles' + */ + function restParam(func, start) { + if (typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); + } + start = nativeMax(start === undefined ? (func.length - 1) : (+start || 0), 0); + return function() { + var args = arguments, + index = -1, + length = nativeMax(args.length - start, 0), + rest = Array(length); + + while (++index < length) { + rest[index] = args[start + index]; + } + switch (start) { + case 0: return func.call(this, rest); + case 1: return func.call(this, args[0], rest); + case 2: return func.call(this, args[0], args[1], rest); + } + var otherArgs = Array(start + 1); + index = -1; + while (++index < start) { + otherArgs[index] = args[index]; + } + otherArgs[start] = rest; + return func.apply(this, otherArgs); + }; + } + + module.exports = restParam; + + +/***/ }, +/* 59 */ +/***/ function(module, exports) { + + "use strict"; + + Object.defineProperty(exports, "__esModule", { + value: true + }); + exports["default"] = { + inputStream: { + name: "Live", + type: "LiveStream", + constraints: { + width: 640, + height: 480, + minAspectRatio: 0, + maxAspectRatio: 100, + facing: "environment" // or user + }, + area: { + top: "0%", + right: "0%", + left: "0%", + bottom: "0%" + }, + singleChannel: false // true: only the red color-channel is read + }, + tracking: false, + debug: false, + controls: false, + locate: true, + numOfWorkers: 4, + visual: { + show: true + }, + decoder: { + drawBoundingBox: false, + showFrequency: false, + drawScanline: false, + showPattern: false, + readers: ['code_128_reader'] + }, + locator: { + halfSample: true, + patchSize: "medium", // x-small, small, medium, large, x-large + showCanvas: false, + showPatches: false, + showFoundPatches: false, + showSkeleton: false, + showLabels: false, + showPatchLabels: false, + showRemainingPatchLabels: false, + boxFromPatches: { + showTransformed: false, + showTransformedBox: false, + showBB: false + } + } + }; + module.exports = exports["default"]; + +/***/ }, +/* 60 */ +/***/ function(module, exports) { + + "use strict"; + + Object.defineProperty(exports, "__esModule", { + value: true + }); + + exports["default"] = (function () { + var events = {}; + + function getEvent(eventName) { + if (!events[eventName]) { + events[eventName] = { + subscribers: [] + }; + } + return events[eventName]; + } + + function clearEvents() { + events = {}; + } + + function publishSubscription(subscription, data) { + if (subscription.async) { + setTimeout(function () { + subscription.callback(data); + }, 4); + } else { + subscription.callback(data); + } + } + + function _subscribe(event, callback, async) { + var subscription; + + if (typeof callback === "function") { + subscription = { + callback: callback, + async: async + }; + } else { + subscription = callback; + if (!subscription.callback) { + throw "Callback was not specified on options"; + } + } + + getEvent(event).subscribers.push(subscription); + } + + return { + subscribe: function subscribe(event, callback, async) { + return _subscribe(event, callback, async); + }, + publish: function publish(eventName, data) { + var event = getEvent(eventName), + subscribers = event.subscribers; + + event.subscribers = subscribers.filter(function (subscriber) { + publishSubscription(subscriber, data); + return !subscriber.once; + }); + }, + once: function once(event, callback, async) { + _subscribe(event, { + callback: callback, + async: async, + once: true + }); + }, + unsubscribe: function unsubscribe(eventName, callback) { + var event; + + if (eventName) { + event = getEvent(eventName); + if (event && callback) { + event.subscribers = event.subscribers.filter(function (subscriber) { + return subscriber.callback !== callback; + }); + } else { + event.subscribers = []; + } + } else { + clearEvents(); + } + } + }; + })(); + + module.exports = exports["default"]; + +/***/ }, +/* 61 */ +/***/ function(module, exports, __webpack_require__) { + + 'use strict'; + + Object.defineProperty(exports, '__esModule', { + value: true + }); + var merge = __webpack_require__(26); + + var streamRef, loadedDataHandler; + + /** + * Wraps browser-specific getUserMedia + * @param {Object} constraints + * @param {Object} success Callback + * @param {Object} failure Callback + */ + function getUserMedia(constraints, success, failure) { + if (typeof navigator.getUserMedia !== 'undefined') { + navigator.getUserMedia(constraints, function (stream) { + streamRef = stream; + var videoSrc = window.URL && window.URL.createObjectURL(stream) || stream; + success.apply(null, [videoSrc]); + }, failure); + } else { + failure(new TypeError("getUserMedia not available")); + } + } + + function loadedData(video, callback) { + var attempts = 10; + + function checkVideo() { + if (attempts > 0) { + if (video.videoWidth > 0 && video.videoHeight > 0) { + console.log(video.videoWidth + "px x " + video.videoHeight + "px"); + callback(); + } else { + window.setTimeout(checkVideo, 500); + } + } else { + callback('Unable to play video stream. Is webcam working?'); + } + attempts--; + } + checkVideo(); + } + + /** + * Tries to attach the camera-stream to a given video-element + * and calls the callback function when the content is ready + * @param {Object} constraints + * @param {Object} video + * @param {Object} callback + */ + function initCamera(constraints, video, callback) { + getUserMedia(constraints, function (src) { + video.src = src; + if (loadedDataHandler) { + video.removeEventListener("loadeddata", loadedDataHandler, false); + } + loadedDataHandler = loadedData.bind(null, video, callback); + video.addEventListener('loadeddata', loadedDataHandler, false); + video.play(); + }, function (e) { + callback(e); + }); + } + + /** + * Normalizes the incoming constraints to satisfy the current browser + * @param config + * @param cb Callback which is called whenever constraints are created + * @returns {*} + */ + function normalizeConstraints(config, cb) { + var constraints = { + audio: false, + video: true + }, + videoConstraints = merge({ + width: 640, + height: 480, + minAspectRatio: 0, + maxAspectRatio: 100, + facing: "environment" + }, config); + + if (typeof MediaStreamTrack !== 'undefined' && typeof MediaStreamTrack.getSources !== 'undefined') { + MediaStreamTrack.getSources(function (sourceInfos) { + var videoSourceId; + for (var i = 0; i < sourceInfos.length; ++i) { + var sourceInfo = sourceInfos[i]; + if (sourceInfo.kind === "video" && sourceInfo.facing === videoConstraints.facing) { + videoSourceId = sourceInfo.id; + } + } + constraints.video = { + mandatory: { + minWidth: videoConstraints.width, + minHeight: videoConstraints.height, + minAspectRatio: videoConstraints.minAspectRatio, + maxAspectRatio: videoConstraints.maxAspectRatio + }, + optional: [{ + sourceId: videoSourceId + }] + }; + return cb(constraints); + }); + } else { + constraints.video = { + mediaSource: "camera", + width: { min: videoConstraints.width, max: videoConstraints.width }, + height: { min: videoConstraints.height, max: videoConstraints.height }, + require: ["width", "height"] + }; + return cb(constraints); + } + } + + /** + * Requests the back-facing camera of the user. The callback is called + * whenever the stream is ready to be consumed, or if an error occures. + * @param {Object} video + * @param {Object} callback + */ + function _request(video, videoConstraints, callback) { + normalizeConstraints(videoConstraints, function (constraints) { + initCamera(constraints, video, callback); + }); + } + + exports['default'] = { + request: function request(video, constraints, callback) { + _request(video, constraints, callback); + }, + release: function release() { + var tracks = streamRef && streamRef.getVideoTracks(); + if (tracks.length) { + tracks[0].stop(); + } + streamRef = null; + } + }; + module.exports = exports['default']; + +/***/ }, +/* 62 */ +/***/ function(module, exports, __webpack_require__) { + + 'use strict'; + + Object.defineProperty(exports, '__esModule', { + value: true + }); + + function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; } + + var _image_debug = __webpack_require__(13); + + var _image_debug2 = _interopRequireDefault(_image_debug); + + function contains(codeResult, list) { + if (list) { + return list.some(function (item) { + return Object.keys(item).every(function (key) { + return item[key] === codeResult[key]; + }); + }); + } + return false; + } + + function passesFilter(codeResult, filter) { + if (typeof filter === 'function') { + return filter(codeResult); + } + return true; + } + + exports['default'] = { + create: function create(config) { + var canvas = document.createElement("canvas"), + ctx = canvas.getContext("2d"), + results = [], + capacity = config.capacity || 20, + capture = config.capture === true; + + function matchesConstraints(codeResult) { + return capacity && codeResult && !contains(codeResult, config.blacklist) && passesFilter(codeResult, config.filter); + } + + return { + addResult: function addResult(data, imageSize, codeResult) { + var result = {}; + + if (matchesConstraints(codeResult)) { + capacity--; + result.codeResult = codeResult; + if (capture) { + canvas.width = imageSize.x; + canvas.height = imageSize.y; + _image_debug2['default'].drawImage(data, imageSize, ctx); + result.frame = canvas.toDataURL(); + } + results.push(result); + } + }, + getResults: function getResults() { + return results; + } + }; + } + }; + module.exports = exports['default']; + +/***/ }, +/* 63 */ +/***/ function(module, exports, __webpack_require__) { + + 'use strict'; + + var GetPixels = __webpack_require__(64); + + var InputStream = {}; + + InputStream.createImageStream = function () { + var that = {}; + var _config = null; + + var width = 0, + height = 0, + frameIdx = 0, + paused = true, + loaded = false, + frame = null, + baseUrl, + ended = false, + size, + calculatedWidth, + calculatedHeight, + _eventNames = ['canrecord', 'ended'], + _eventHandlers = {}, + _topRight = { x: 0, y: 0 }, + _canvasSize = { x: 0, y: 0 }; + + function loadImages() { + loaded = false; + GetPixels(baseUrl, function (err, pixels) { + if (err) { + console.log(err); + exit(1); + } + loaded = true; + console.log(pixels.shape); + frame = pixels; + width = pixels.shape[0]; + height = pixels.shape[1]; + calculatedWidth = _config.size ? width / height > 1 ? _config.size : Math.floor(width / height * _config.size) : width; + calculatedHeight = _config.size ? width / height > 1 ? Math.floor(height / width * _config.size) : _config.size : height; + + _canvasSize.x = calculatedWidth; + _canvasSize.y = calculatedHeight; + + setTimeout(function () { + publishEvent("canrecord", []); + }, 0); + }); + } + + function publishEvent(eventName, args) { + var j, + handlers = _eventHandlers[eventName]; + + if (handlers && handlers.length > 0) { + for (j = 0; j < handlers.length; j++) { + handlers[j].apply(that, args); + } + } + } + + that.trigger = publishEvent; + + that.getWidth = function () { + return calculatedWidth; + }; + + that.getHeight = function () { + return calculatedHeight; + }; + + that.setWidth = function (width) { + calculatedWidth = width; + }; + + that.setHeight = function (height) { + calculatedHeight = height; + }; + + that.getRealWidth = function () { + return width; + }; + + that.getRealHeight = function () { + return height; + }; + + that.setInputStream = function (stream) { + _config = stream; + baseUrl = _config.src; + size = 1; + loadImages(); + }; + + that.ended = function () { + return ended; + }; + + that.setAttribute = function () {}; + + that.getConfig = function () { + return _config; + }; + + that.pause = function () { + paused = true; + }; + + that.play = function () { + paused = false; + }; + + that.setCurrentTime = function (time) { + frameIdx = time; + }; + + that.addEventListener = function (event, f) { + if (_eventNames.indexOf(event) !== -1) { + if (!_eventHandlers[event]) { + _eventHandlers[event] = []; + } + _eventHandlers[event].push(f); + } + }; + + that.setTopRight = function (topRight) { + _topRight.x = topRight.x; + _topRight.y = topRight.y; + }; + + that.getTopRight = function () { + return _topRight; + }; + + that.setCanvasSize = function (size) { + _canvasSize.x = size.x; + _canvasSize.y = size.y; + }; + + that.getCanvasSize = function () { + return _canvasSize; + }; + + that.getFrame = function () { + if (!loaded) { + return null; + } + return frame; + }; + + return that; + }; + + module.exports = InputStream; + +/***/ }, +/* 64 */ +/***/ function(module, exports) { + + module.exports = require("get-pixels"); + +/***/ }, +/* 65 */ +/***/ function(module, exports, __webpack_require__) { + + "use strict"; + + var CVUtils = __webpack_require__(5), + Ndarray = __webpack_require__(66), + Interp2D = __webpack_require__(67).d2; + + var FrameGrabber = {}; + + FrameGrabber.create = function (inputStream) { + var _that = {}, + _streamConfig = inputStream.getConfig(), + _video_size = CVUtils.imageRef(inputStream.getRealWidth(), inputStream.getRealHeight()), + _canvasSize = inputStream.getCanvasSize(), + _size = CVUtils.imageRef(inputStream.getWidth(), inputStream.getHeight()), + _topRight = inputStream.getTopRight(), + _data = new Uint8Array(_size.x * _size.y), + _grayData = new Uint8Array(_video_size.x * _video_size.y), + _canvasData = new Uint8Array(_canvasSize.x * _canvasSize.y), + _grayImageArray = Ndarray(_grayData, [_video_size.y, _video_size.x]).transpose(1, 0), + _canvasImageArray = Ndarray(_canvasData, [_canvasSize.y, _canvasSize.x]).transpose(1, 0), + _targetImageArray = _canvasImageArray.hi(_topRight.x + _size.x, _topRight.y + _size.y).lo(_topRight.x, _topRight.y), + _stepSizeX = _video_size.x / _canvasSize.x, + _stepSizeY = _video_size.y / _canvasSize.y; + + console.log("FrameGrabber", JSON.stringify({ + videoSize: _grayImageArray.shape, + canvasSize: _canvasImageArray.shape, + stepSize: [_stepSizeX, _stepSizeY], + size: _targetImageArray.shape, + topRight: _topRight + })); + + /** + * Uses the given array as frame-buffer + */ + _that.attachData = function (data) { + _data = data; + }; + + /** + * Returns the used frame-buffer + */ + _that.getData = function () { + return _data; + }; + + /** + * Fetches a frame from the input-stream and puts into the frame-buffer. + * The image-data is converted to gray-scale and then half-sampled if configured. + */ + _that.grab = function () { + var frame = inputStream.getFrame(); + + if (frame) { + this.scaleAndCrop(frame); + return true; + } else { + return false; + } + }; + + _that.scaleAndCrop = function (frame) { + var x, y; + + // 1. compute full-sized gray image + CVUtils.computeGray(frame.data, _grayData); + + // 2. interpolate + for (y = 0; y < _canvasSize.y; y++) { + for (x = 0; x < _canvasSize.x; x++) { + _canvasImageArray.set(x, y, Interp2D(_grayImageArray, x * _stepSizeX, y * _stepSizeY) | 0); + } + } + + // targetImageArray must be equal to targetSize + if (_targetImageArray.shape[0] !== _size.x || _targetImageArray.shape[1] !== _size.y) { + throw new Error("Shapes do not match!"); + } + + // 3. crop + for (y = 0; y < _size.y; y++) { + for (x = 0; x < _size.x; x++) { + _data[y * _size.x + x] = _targetImageArray.get(x, y); + } + } + }, _that.getSize = function () { + return _size; + }; + + return _that; + }; + + module.exports = FrameGrabber; + +/***/ }, +/* 66 */ +/***/ function(module, exports) { + + module.exports = require("ndarray"); + +/***/ }, +/* 67 */ +/***/ function(module, exports) { + + module.exports = require("ndarray-linear-interpolate"); + +/***/ } +/******/ ]); +//# sourceMappingURL=quagga.map \ No newline at end of file diff --git a/package.json b/package.json index e94f7bce..119a81f0 100644 --- a/package.json +++ b/package.json @@ -3,7 +3,7 @@ "version": "0.7.0", "description": "An advanced barcode-scanner written in JavaScript", "main": "lib/quagga.js", - "browser": "dist/quagga.js", + "browser": "dist/quagga.min.js", "devDependencies": { "async": "^1.4.2", "babel-core": "^5.8.25", diff --git a/src/barcode_locator.js b/src/barcode_locator.js index 77a6c45b..6fece952 100644 --- a/src/barcode_locator.js +++ b/src/barcode_locator.js @@ -58,7 +58,7 @@ function initBuffers() { _skelImageWrapper = new ImageWrapper(_patchSize, new Uint8Array(skeletonImageData, _patchSize.x * _patchSize.y * 3, _patchSize.x * _patchSize.y), undefined, true); - _skeletonizer = skeletonizer((typeof window !== 'undefined') ? window : self, { + _skeletonizer = skeletonizer((typeof window !== 'undefined') ? window : (typeof self !== 'undefined') ? self : global, { size: _patchSize.x }, skeletonImageData); diff --git a/src/quagga.js b/src/quagga.js index d991d7a5..5a371a5e 100644 --- a/src/quagga.js +++ b/src/quagga.js @@ -1,9 +1,7 @@ import TypeDefs from './typedefs'; // eslint-disable-line no-unused-vars -import InputStream from './input_stream'; import ImageWrapper from './image_wrapper'; import BarcodeLocator from './barcode_locator'; import BarcodeDecoder from './barcode_decoder'; -import FrameGrabber from './frame_grabber'; import Config from './config'; import Events from './events'; import CameraAccess from './camera_access'; @@ -12,6 +10,8 @@ import {vec2} from 'gl-matrix'; import ResultCollector from './result_collector'; const merge = require('lodash/object/merge'); +const InputStream = require('input_stream'); +const FrameGrabber = require('frame_grabber'); var _inputStream, _framegrabber, diff --git a/webpack.config.js b/webpack.config.js index a32a3e3d..4aa41fcd 100644 --- a/webpack.config.js +++ b/webpack.config.js @@ -1,5 +1,6 @@ var webpack = require('webpack'), - MyUmdPlugin = require('./plugins/umd'); + MyUmdPlugin = require('./plugins/umd'), + path = require('path'); module.exports = { entry: [ @@ -14,7 +15,11 @@ module.exports = { }] }, resolve: { - extensions: ['', '.js', '.jsx'] + extensions: ['', '.js', '.jsx'], + alias: { + 'input_stream$': path.resolve(__dirname, 'src/input_stream'), + 'frame_grabber$': path.resolve(__dirname, 'src/frame_grabber') + } }, output: { path: __dirname + '/dist', diff --git a/webpack.node.config.js b/webpack.node.config.js new file mode 100644 index 00000000..e0905e45 --- /dev/null +++ b/webpack.node.config.js @@ -0,0 +1,26 @@ +var webpack = require('webpack'), + path = require('path'); + +module.exports = require('./webpack.config.js'); + +console.log(path.resolve(__dirname, 'lib/input_stream')); + +module.exports.resolve = { + extensions: ['', '.js', '.jsx'], + alias: { + 'input_stream$': path.resolve(__dirname, 'lib/input_stream'), + 'frame_grabber$': path.resolve(__dirname, 'lib/frame_grabber') + } +}; + +module.exports.externals = [ + "get-pixels", + "gl-matrix", + "lodash", + "ndarray", + "ndarray-linear-interpolate" +]; +module.exports.output.libraryTarget = "commonjs2"; +module.exports.plugins = []; +module.exports.output.path = __dirname + '/lib'; +module.exports.output.filename = 'quagga.js'; From 0e917e4009b1a4d361fe3acd2b40f667f276c49d Mon Sep 17 00:00:00 2001 From: Christoph Oberhofer Date: Wed, 14 Oct 2015 19:03:34 -0400 Subject: [PATCH 6/7] Updated Readme and webpack-config --- README.md | 23 +++++++++++++++++------ dist/quagga.min.js | 3 +-- karma-integration.conf.js | 9 +++++++++ karma.conf.js | 9 ++++++++- package.json | 8 +++++--- plugins/umd.js | 2 -- webpack.config.min.js | 3 +++ webpack.node.config.js | 2 -- 8 files changed, 43 insertions(+), 16 deletions(-) diff --git a/README.md b/README.md index 445d6cd7..62bd703d 100644 --- a/README.md +++ b/README.md @@ -1,7 +1,7 @@ quaggaJS ======== -- [Changelog](#changelog) (2015-09-15) +- [Changelog](#changelog) (2015-10-13) ## What is QuaggaJS? @@ -34,9 +34,9 @@ be aligned with the viewport. In order to take full advantage of quaggaJS, the browser needs to support the `getUserMedia` API which is already implemented in recent versions of Firefox, -Chrome, IE (Edge) and Opera. The API is also available on their mobile +Chrome, IE (Edge) and Opera. The API is also available on their mobile counterparts installed on Android (except IE). Safari does not allow the access -to the camera yet, neither on desktop, nor on mobile. You can check +to the camera yet, neither on desktop, nor on mobile. You can check [caniuse][caniuse_getusermedia] for updates. In cases where real-time decoding is not needed, or the platform does not @@ -90,11 +90,15 @@ You can build the library yourself by simply cloning the repo and typing: ```console > npm install -> grunt dist +> npm run build ``` -This grunt task builds a non optimized version `quagga.js` and a minified +This npm script builds a non optimized version `quagga.js` and a minified version `quagga.min.js` and places both files in the `dist` folder. +Additionally, a `quagga.map` source-map is placed alongside these files. This +file is only valid for the non-uglified version `quagga.js` because the +minified version is altered after compression and does not align with the map +file any more. ## API @@ -360,7 +364,7 @@ automatically generated in the coverage/ folder. ```console > npm install -> grunt test +> npm run test ``` ## Image Debugging @@ -430,6 +434,13 @@ on the ``singleChannel`` flag in the configuration when using ``decodeSingle``. ## Changelog +### 2015-10-13 +Take a look at the release-notes ([0.8.0] +(/~https://github.com/serratus/quaggaJS/releases/tag/v0.8.0)) + +- Improvements + - Replaced RequireJS with webpack + ### 2015-09-15 Take a look at the release-notes ([0.7.0] (/~https://github.com/serratus/quaggaJS/releases/tag/v0.7.0)) diff --git a/dist/quagga.min.js b/dist/quagga.min.js index b108f7a5..94f1c1d9 100644 --- a/dist/quagga.min.js +++ b/dist/quagga.min.js @@ -1,4 +1,3 @@ !function(t,e){"object"==typeof exports&&"object"==typeof 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t[0]=r*f+a*l,t[1]=o*f+i*l,t[2]=r*s+a*d,t[3]=o*s+i*d,t[4]=r*h+a*p+u,t[5]=o*h+i*p+c,t},o.mul=o.multiply,o.rotate=function(t,e,n){var r=e[0],o=e[1],a=e[2],i=e[3],u=e[4],c=e[5],f=Math.sin(n),l=Math.cos(n);return t[0]=r*l+a*f,t[1]=o*l+i*f,t[2]=r*-f+a*l,t[3]=o*-f+i*l,t[4]=u,t[5]=c,t},o.scale=function(t,e,n){var r=e[0],o=e[1],a=e[2],i=e[3],u=e[4],c=e[5],f=n[0],l=n[1];return t[0]=r*f,t[1]=o*f,t[2]=a*l,t[3]=i*l,t[4]=u,t[5]=c,t},o.translate=function(t,e,n){var r=e[0],o=e[1],a=e[2],i=e[3],u=e[4],c=e[5],f=n[0],l=n[1];return t[0]=r,t[1]=o,t[2]=a,t[3]=i,t[4]=r*f+a*l+u,t[5]=o*f+i*l+c,t},o.fromRotation=function(t,e){var n=Math.sin(e),r=Math.cos(e);return t[0]=r,t[1]=n,t[2]=-n,t[3]=r,t[4]=0,t[5]=0,t},o.fromScaling=function(t,e){return t[0]=e[0],t[1]=0,t[2]=0,t[3]=e[1],t[4]=0,t[5]=0,t},o.fromTranslation=function(t,e){return t[0]=1,t[1]=0,t[2]=0,t[3]=1,t[4]=e[0],t[5]=e[1],t},o.str=function(t){return"mat2d("+t[0]+", "+t[1]+", "+t[2]+", "+t[3]+", "+t[4]+", "+t[5]+")"},o.frob=function(t){return Math.sqrt(Math.pow(t[0],2)+Math.pow(t[1],2)+Math.pow(t[2],2)+Math.pow(t[3],2)+Math.pow(t[4],2)+Math.pow(t[5],2)+1)},t.exports=o},function(t,e,n){var r=n(8),o={};o.create=function(){var t=new r.ARRAY_TYPE(9);return t[0]=1,t[1]=0,t[2]=0,t[3]=0,t[4]=1,t[5]=0,t[6]=0,t[7]=0,t[8]=1,t},o.fromMat4=function(t,e){return t[0]=e[0],t[1]=e[1],t[2]=e[2],t[3]=e[4],t[4]=e[5],t[5]=e[6],t[6]=e[8],t[7]=e[9],t[8]=e[10],t},o.clone=function(t){var e=new r.ARRAY_TYPE(9);return e[0]=t[0],e[1]=t[1],e[2]=t[2],e[3]=t[3],e[4]=t[4],e[5]=t[5],e[6]=t[6],e[7]=t[7],e[8]=t[8],e},o.copy=function(t,e){return t[0]=e[0],t[1]=e[1],t[2]=e[2],t[3]=e[3],t[4]=e[4],t[5]=e[5],t[6]=e[6],t[7]=e[7],t[8]=e[8],t},o.identity=function(t){return t[0]=1,t[1]=0,t[2]=0,t[3]=0,t[4]=1,t[5]=0,t[6]=0,t[7]=0,t[8]=1,t},o.transpose=function(t,e){if(t===e){var n=e[1],r=e[2],o=e[5];t[1]=e[3],t[2]=e[6],t[3]=n,t[5]=e[7],t[6]=r,t[7]=o}else t[0]=e[0],t[1]=e[3],t[2]=e[6],t[3]=e[1],t[4]=e[4],t[5]=e[7],t[6]=e[2],t[7]=e[5],t[8]=e[8];return t},o.invert=function(t,e){var n=e[0],r=e[1],o=e[2],a=e[3],i=e[4],u=e[5],c=e[6],f=e[7],l=e[8],s=l*i-u*f,d=-l*a+u*c,h=f*a-i*c,p=n*s+r*d+o*h;return p?(p=1/p,t[0]=s*p,t[1]=(-l*r+o*f)*p,t[2]=(u*r-o*i)*p,t[3]=d*p,t[4]=(l*n-o*c)*p,t[5]=(-u*n+o*a)*p,t[6]=h*p,t[7]=(-f*n+r*c)*p,t[8]=(i*n-r*a)*p,t):null},o.adjoint=function(t,e){var n=e[0],r=e[1],o=e[2],a=e[3],i=e[4],u=e[5],c=e[6],f=e[7],l=e[8];return t[0]=i*l-u*f,t[1]=o*f-r*l,t[2]=r*u-o*i,t[3]=u*c-a*l,t[4]=n*l-o*c,t[5]=o*a-n*u,t[6]=a*f-i*c,t[7]=r*c-n*f,t[8]=n*i-r*a,t},o.determinant=function(t){var e=t[0],n=t[1],r=t[2],o=t[3],a=t[4],i=t[5],u=t[6],c=t[7],f=t[8];return e*(f*a-i*c)+n*(-f*o+i*u)+r*(c*o-a*u)},o.multiply=function(t,e,n){var r=e[0],o=e[1],a=e[2],i=e[3],u=e[4],c=e[5],f=e[6],l=e[7],s=e[8],d=n[0],h=n[1],p=n[2],v=n[3],g=n[4],m=n[5],y=n[6],_=n[7],x=n[8];return t[0]=d*r+h*i+p*f,t[1]=d*o+h*u+p*l,t[2]=d*a+h*c+p*s,t[3]=v*r+g*i+m*f,t[4]=v*o+g*u+m*l,t[5]=v*a+g*c+m*s,t[6]=y*r+_*i+x*f,t[7]=y*o+_*u+x*l,t[8]=y*a+_*c+x*s,t},o.mul=o.multiply,o.translate=function(t,e,n){var r=e[0],o=e[1],a=e[2],i=e[3],u=e[4],c=e[5],f=e[6],l=e[7],s=e[8],d=n[0],h=n[1];return t[0]=r,t[1]=o,t[2]=a,t[3]=i,t[4]=u,t[5]=c,t[6]=d*r+h*i+f,t[7]=d*o+h*u+l,t[8]=d*a+h*c+s,t},o.rotate=function(t,e,n){var r=e[0],o=e[1],a=e[2],i=e[3],u=e[4],c=e[5],f=e[6],l=e[7],s=e[8],d=Math.sin(n),h=Math.cos(n);return t[0]=h*r+d*i,t[1]=h*o+d*u,t[2]=h*a+d*c,t[3]=h*i-d*r,t[4]=h*u-d*o,t[5]=h*c-d*a,t[6]=f,t[7]=l,t[8]=s,t},o.scale=function(t,e,n){var r=n[0],o=n[1];return t[0]=r*e[0],t[1]=r*e[1],t[2]=r*e[2],t[3]=o*e[3],t[4]=o*e[4],t[5]=o*e[5],t[6]=e[6],t[7]=e[7],t[8]=e[8],t},o.fromTranslation=function(t,e){return t[0]=1,t[1]=0,t[2]=0,t[3]=0,t[4]=1,t[5]=0,t[6]=e[0],t[7]=e[1],t[8]=1,t},o.fromRotation=function(t,e){var n=Math.sin(e),r=Math.cos(e);return t[0]=r,t[1]=n,t[2]=0,t[3]=-n,t[4]=r,t[5]=0,t[6]=0,t[7]=0,t[8]=1,t},o.fromScaling=function(t,e){return t[0]=e[0],t[1]=0,t[2]=0,t[3]=0,t[4]=e[1],t[5]=0,t[6]=0,t[7]=0,t[8]=1,t},o.fromMat2d=function(t,e){return t[0]=e[0],t[1]=e[1],t[2]=0,t[3]=e[2],t[4]=e[3],t[5]=0,t[6]=e[4],t[7]=e[5],t[8]=1,t},o.fromQuat=function(t,e){var n=e[0],r=e[1],o=e[2],a=e[3],i=n+n,u=r+r,c=o+o,f=n*i,l=r*i,s=r*u,d=o*i,h=o*u,p=o*c,v=a*i,g=a*u,m=a*c;return t[0]=1-s-p,t[3]=l-m,t[6]=d+g,t[1]=l+m,t[4]=1-f-p,t[7]=h-v,t[2]=d-g,t[5]=h+v,t[8]=1-f-s,t},o.normalFromMat4=function(t,e){var n=e[0],r=e[1],o=e[2],a=e[3],i=e[4],u=e[5],c=e[6],f=e[7],l=e[8],s=e[9],d=e[10],h=e[11],p=e[12],v=e[13],g=e[14],m=e[15],y=n*u-r*i,_=n*c-o*i,x=n*f-a*i,M=r*c-o*u,b=r*f-a*u,w=o*f-a*c,R=l*v-s*p,A=l*g-d*p,E=l*m-h*p,C=s*g-d*v,O=s*m-h*v,T=d*m-h*g,D=y*T-_*O+x*C+M*E-b*A+w*R;return D?(D=1/D,t[0]=(u*T-c*O+f*C)*D,t[1]=(c*E-i*T-f*A)*D,t[2]=(i*O-u*E+f*R)*D,t[3]=(o*O-r*T-a*C)*D,t[4]=(n*T-o*E+a*A)*D,t[5]=(r*E-n*O-a*R)*D,t[6]=(v*w-g*b+m*M)*D,t[7]=(g*x-p*w-m*_)*D,t[8]=(p*b-v*x+m*y)*D,t):null},o.str=function(t){return"mat3("+t[0]+", "+t[1]+", "+t[2]+", "+t[3]+", "+t[4]+", "+t[5]+", "+t[6]+", "+t[7]+", "+t[8]+")"},o.frob=function(t){return Math.sqrt(Math.pow(t[0],2)+Math.pow(t[1],2)+Math.pow(t[2],2)+Math.pow(t[3],2)+Math.pow(t[4],2)+Math.pow(t[5],2)+Math.pow(t[6],2)+Math.pow(t[7],2)+Math.pow(t[8],2))},t.exports=o},function(t,e,n){var r=n(8),o={};o.create=function(){var t=new r.ARRAY_TYPE(16);return t[0]=1,t[1]=0,t[2]=0,t[3]=0,t[4]=0,t[5]=1,t[6]=0,t[7]=0,t[8]=0,t[9]=0,t[10]=1,t[11]=0,t[12]=0,t[13]=0,t[14]=0,t[15]=1,t},o.clone=function(t){var e=new r.ARRAY_TYPE(16);return e[0]=t[0],e[1]=t[1],e[2]=t[2],e[3]=t[3],e[4]=t[4],e[5]=t[5],e[6]=t[6],e[7]=t[7],e[8]=t[8],e[9]=t[9],e[10]=t[10],e[11]=t[11],e[12]=t[12],e[13]=t[13],e[14]=t[14],e[15]=t[15],e},o.copy=function(t,e){return t[0]=e[0],t[1]=e[1],t[2]=e[2],t[3]=e[3],t[4]=e[4],t[5]=e[5],t[6]=e[6],t[7]=e[7],t[8]=e[8],t[9]=e[9],t[10]=e[10],t[11]=e[11],t[12]=e[12],t[13]=e[13],t[14]=e[14],t[15]=e[15],t},o.identity=function(t){return t[0]=1,t[1]=0,t[2]=0,t[3]=0,t[4]=0,t[5]=1,t[6]=0,t[7]=0,t[8]=0,t[9]=0,t[10]=1,t[11]=0,t[12]=0,t[13]=0,t[14]=0,t[15]=1,t},o.transpose=function(t,e){if(t===e){var n=e[1],r=e[2],o=e[3],a=e[6],i=e[7],u=e[11];t[1]=e[4],t[2]=e[8],t[3]=e[12],t[4]=n,t[6]=e[9],t[7]=e[13],t[8]=r,t[9]=a,t[11]=e[14],t[12]=o,t[13]=i,t[14]=u}else t[0]=e[0],t[1]=e[4],t[2]=e[8],t[3]=e[12],t[4]=e[1],t[5]=e[5],t[6]=e[9],t[7]=e[13],t[8]=e[2],t[9]=e[6],t[10]=e[10],t[11]=e[14],t[12]=e[3],t[13]=e[7],t[14]=e[11],t[15]=e[15];return t},o.invert=function(t,e){var n=e[0],r=e[1],o=e[2],a=e[3],i=e[4],u=e[5],c=e[6],f=e[7],l=e[8],s=e[9],d=e[10],h=e[11],p=e[12],v=e[13],g=e[14],m=e[15],y=n*u-r*i,_=n*c-o*i,x=n*f-a*i,M=r*c-o*u,b=r*f-a*u,w=o*f-a*c,R=l*v-s*p,A=l*g-d*p,E=l*m-h*p,C=s*g-d*v,O=s*m-h*v,T=d*m-h*g,D=y*T-_*O+x*C+M*E-b*A+w*R;return D?(D=1/D,t[0]=(u*T-c*O+f*C)*D,t[1]=(o*O-r*T-a*C)*D,t[2]=(v*w-g*b+m*M)*D,t[3]=(d*b-s*w-h*M)*D,t[4]=(c*E-i*T-f*A)*D,t[5]=(n*T-o*E+a*A)*D,t[6]=(g*x-p*w-m*_)*D,t[7]=(l*w-d*x+h*_)*D,t[8]=(i*O-u*E+f*R)*D,t[9]=(r*E-n*O-a*R)*D,t[10]=(p*b-v*x+m*y)*D,t[11]=(s*x-l*b-h*y)*D,t[12]=(u*A-i*C-c*R)*D,t[13]=(n*C-r*A+o*R)*D,t[14]=(v*_-p*M-g*y)*D,t[15]=(l*M-s*_+d*y)*D,t):null},o.adjoint=function(t,e){var n=e[0],r=e[1],o=e[2],a=e[3],i=e[4],u=e[5],c=e[6],f=e[7],l=e[8],s=e[9],d=e[10],h=e[11],p=e[12],v=e[13],g=e[14],m=e[15];return t[0]=u*(d*m-h*g)-s*(c*m-f*g)+v*(c*h-f*d),t[1]=-(r*(d*m-h*g)-s*(o*m-a*g)+v*(o*h-a*d)),t[2]=r*(c*m-f*g)-u*(o*m-a*g)+v*(o*f-a*c),t[3]=-(r*(c*h-f*d)-u*(o*h-a*d)+s*(o*f-a*c)),t[4]=-(i*(d*m-h*g)-l*(c*m-f*g)+p*(c*h-f*d)),t[5]=n*(d*m-h*g)-l*(o*m-a*g)+p*(o*h-a*d),t[6]=-(n*(c*m-f*g)-i*(o*m-a*g)+p*(o*f-a*c)),t[7]=n*(c*h-f*d)-i*(o*h-a*d)+l*(o*f-a*c),t[8]=i*(s*m-h*v)-l*(u*m-f*v)+p*(u*h-f*s),t[9]=-(n*(s*m-h*v)-l*(r*m-a*v)+p*(r*h-a*s)),t[10]=n*(u*m-f*v)-i*(r*m-a*v)+p*(r*f-a*u),t[11]=-(n*(u*h-f*s)-i*(r*h-a*s)+l*(r*f-a*u)),t[12]=-(i*(s*g-d*v)-l*(u*g-c*v)+p*(u*d-c*s)),t[13]=n*(s*g-d*v)-l*(r*g-o*v)+p*(r*d-o*s),t[14]=-(n*(u*g-c*v)-i*(r*g-o*v)+p*(r*c-o*u)),t[15]=n*(u*d-c*s)-i*(r*d-o*s)+l*(r*c-o*u),t},o.determinant=function(t){var e=t[0],n=t[1],r=t[2],o=t[3],a=t[4],i=t[5],u=t[6],c=t[7],f=t[8],l=t[9],s=t[10],d=t[11],h=t[12],p=t[13],v=t[14],g=t[15],m=e*i-n*a,y=e*u-r*a,_=e*c-o*a,x=n*u-r*i,M=n*c-o*i,b=r*c-o*u,w=f*p-l*h,R=f*v-s*h,A=f*g-d*h,E=l*v-s*p,C=l*g-d*p,O=s*g-d*v;return m*O-y*C+_*E+x*A-M*R+b*w},o.multiply=function(t,e,n){var r=e[0],o=e[1],a=e[2],i=e[3],u=e[4],c=e[5],f=e[6],l=e[7],s=e[8],d=e[9],h=e[10],p=e[11],v=e[12],g=e[13],m=e[14],y=e[15],_=n[0],x=n[1],M=n[2],b=n[3];return t[0]=_*r+x*u+M*s+b*v,t[1]=_*o+x*c+M*d+b*g,t[2]=_*a+x*f+M*h+b*m,t[3]=_*i+x*l+M*p+b*y,_=n[4],x=n[5],M=n[6],b=n[7],t[4]=_*r+x*u+M*s+b*v,t[5]=_*o+x*c+M*d+b*g,t[6]=_*a+x*f+M*h+b*m,t[7]=_*i+x*l+M*p+b*y,_=n[8],x=n[9],M=n[10],b=n[11],t[8]=_*r+x*u+M*s+b*v,t[9]=_*o+x*c+M*d+b*g,t[10]=_*a+x*f+M*h+b*m,t[11]=_*i+x*l+M*p+b*y,_=n[12],x=n[13],M=n[14],b=n[15],t[12]=_*r+x*u+M*s+b*v,t[13]=_*o+x*c+M*d+b*g,t[14]=_*a+x*f+M*h+b*m,t[15]=_*i+x*l+M*p+b*y,t},o.mul=o.multiply,o.translate=function(t,e,n){var r,o,a,i,u,c,f,l,s,d,h,p,v=n[0],g=n[1],m=n[2];return 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1|0;xStart2=u+1|0;sum=(images[inImagePtr+yStart1+xStart1|0]|0)+(images[inImagePtr+yStart1+xStart2|0]|0)+(images[inImagePtr+offset+u|0]|0)+(images[inImagePtr+yStart2+xStart1|0]|0)+(images[inImagePtr+yStart2+xStart2|0]|0)|0;if ((sum|0) == (5|0)) {images[outImagePtr+offset+u|0]=1;} else {images[outImagePtr+offset+u|0]=0;}}}return;}function subtract(aImagePtr, bImagePtr, outImagePtr) {aImagePtr=aImagePtr|0;bImagePtr=bImagePtr|0;outImagePtr=outImagePtr|0;var length=0;length=imul(size, size)|0;while ((length|0)>0) {length=length - 1|0;images[outImagePtr+length|0]=(images[aImagePtr+length|0]|0) - (images[bImagePtr+length|0]|0)|0;}}function bitwiseOr(aImagePtr, bImagePtr, outImagePtr) {aImagePtr=aImagePtr|0;bImagePtr=bImagePtr|0;outImagePtr=outImagePtr|0;var length=0;length=imul(size, size)|0;while ((length|0)>0) {length=length - 1|0;images[outImagePtr+length|0]=images[aImagePtr+length|0]|0|(images[bImagePtr+length|0]|0)|0;}}function countNonZero(imagePtr) {imagePtr=imagePtr|0;var sum=0,length=0;length=imul(size, size)|0;while ((length|0)>0) {length=length - 1|0;sum=(sum|0)+(images[imagePtr+length|0]|0)|0;}return sum|0;}function init(imagePtr, value) {imagePtr=imagePtr|0;value=value|0;var length=0;length=imul(size, size)|0;while ((length|0)>0) {length=length - 1|0;images[imagePtr+length|0]=value;}}function dilate(inImagePtr, outImagePtr) {inImagePtr=inImagePtr|0;outImagePtr=outImagePtr|0;var v=0,u=0,sum=0,yStart1=0,yStart2=0,xStart1=0,xStart2=0,offset=0;for (v=1; (v|0)<(size - 1|0); v=v+1|0) {offset=offset+size|0;for (u=1; (u|0)<(size - 1|0); u=u+1|0) {yStart1=offset - size|0;yStart2=offset+size|0;xStart1=u - 1|0;xStart2=u+1|0;sum=(images[inImagePtr+yStart1+xStart1|0]|0)+(images[inImagePtr+yStart1+xStart2|0]|0)+(images[inImagePtr+offset+u|0]|0)+(images[inImagePtr+yStart2+xStart1|0]|0)+(images[inImagePtr+yStart2+xStart2|0]|0)|0;if ((sum|0)>(0|0)) {images[outImagePtr+offset+u|0]=1;} else {images[outImagePtr+offset+u|0]=0;}}}return;}function memcpy(srcImagePtr, dstImagePtr) {srcImagePtr=srcImagePtr|0;dstImagePtr=dstImagePtr|0;var length=0;length=imul(size, size)|0;while ((length|0)>0) {length=length - 1|0;images[dstImagePtr+length|0]=images[srcImagePtr+length|0]|0;}}function zeroBorder(imagePtr) {imagePtr=imagePtr|0;var x=0,y=0;for (x=0; (x|0)<(size - 1|0); x=x+1|0) {images[imagePtr+x|0]=0;images[imagePtr+y|0]=0;y=y+size - 1|0;images[imagePtr+y|0]=0;y=y+1|0;}for (x=0; (x|0)<(size|0); x=x+1|0) {images[imagePtr+y|0]=0;y=y+1|0;}}function skeletonize() {var subImagePtr=0,erodedImagePtr=0,tempImagePtr=0,skelImagePtr=0,sum=0,done=0;erodedImagePtr=imul(size, size)|0;tempImagePtr=erodedImagePtr+erodedImagePtr|0;skelImagePtr=tempImagePtr+erodedImagePtr|0;init(skelImagePtr, 0);zeroBorder(subImagePtr);do {erode(subImagePtr, erodedImagePtr);dilate(erodedImagePtr, tempImagePtr);subtract(subImagePtr, tempImagePtr, tempImagePtr);bitwiseOr(skelImagePtr, tempImagePtr, skelImagePtr);memcpy(erodedImagePtr, subImagePtr);sum=countNonZero(subImagePtr)|0;done=(sum|0) == 0|0;} while (!done);}return {skeletonize: skeletonize};}exports["default"]=Skeletonizer;module.exports=exports["default"]; },function(t,e){"use strict";Object.defineProperty(e,"__esModule",{value:!0}),e["default"]={drawRect:function(t,e,n,r){n.strokeStyle=r.color,n.fillStyle=r.color,n.lineWidth=1,n.beginPath(),n.strokeRect(t.x,t.y,e.x,e.y)},drawPath:function(t,e,n,r){n.strokeStyle=r.color,n.fillStyle=r.color,n.lineWidth=r.lineWidth,n.beginPath(),n.moveTo(t[0][e.x],t[0][e.y]);for(var o=1;o1&&(!e.inImageWithBorder(t[0],0)||!e.inImageWithBorder(t[1],0));)r-=Math.ceil(r/2),o(-r);return t}function c(t){return[{x:(t[1][0]-t[0][0])/2+t[0][0],y:(t[1][1]-t[0][1])/2+t[0][1]},{x:(t[3][0]-t[2][0])/2+t[2][0],y:(t[3][1]-t[2][1])/2+t[2][1]}]}function f(n){var r,o=null,i=a["default"].getBarcodeLine(e,n[0],n[1]);for(t.showFrequency&&(u["default"].drawPath(n,{x:"x",y:"y"},h.ctx.overlay,{color:"red",lineWidth:3}),a["default"].debug.printFrequency(i.line,h.dom.frequency)),a["default"].toBinaryLine(i),t.showPattern&&a["default"].debug.printPattern(i.line,h.dom.pattern),r=0;rr&&null===c;r++)o=i/u*r*(r%2===0?-1:1),a={y:o*l,x:o*s},e[0].y+=a.x,e[0].x-=a.y,e[1].y+=a.x,e[1].x-=a.y,c=f(e);return c}function s(t){return Math.sqrt(Math.pow(Math.abs(t[1].y-t[0].y),2)+Math.pow(Math.abs(t[1].x-t[0].x),2))}function d(e){var n,r,o,a,d=h.ctx.overlay;return t.drawBoundingBox&&d&&u["default"].drawPath(e,{x:0,y:1},d,{color:"blue",lineWidth:2}),n=c(e),a=s(n),r=Math.atan2(n[1].y-n[0].y,n[1].x-n[0].x),n=i(n,r,Math.floor(.1*a)),null===n?null:(o=f(n),null===o&&(o=l(e,n,r)),null===o?null:(o&&t.drawScanline&&d&&u["default"].drawPath(n,{x:"x",y:"y"},d,{color:"red",lineWidth:3}),{codeResult:o.codeResult,line:n,angle:r,pattern:o.barcodeLine.line,threshold:o.barcodeLine.threshold}))}var h={ctx:{frequency:null,pattern:null,overlay:null},dom:{frequency:null,pattern:null,overlay:null}},p=[];return n(),r(),o(),{decodeFromBoundingBox:function(t){return d(t)},decodeFromBoundingBoxes:function(t){var e,n;for(e=0;es?s:M,b=s>b?s:b,m.push(s)}var o,a,i,u,c,f,l,s,d=0|e.x,h=0|e.y,p=0|n.x,v=0|n.y,g=Math.abs(v-h)>Math.abs(p-d),m=[],y=t.data,_=t.size.x,x=0,M=255,b=0;for(g&&(f=d,d=h,h=f,f=p,p=v,v=f),d>p&&(f=d,d=p,p=f,f=h,h=v,v=f),o=p-d,a=Math.abs(v-h),i=o/2|0,c=h,u=v>h?1:-1,l=d;p>l;l++)g?r(c,l):r(l,c),i-=a,0>i&&(c+=u,i+=o);return{line:m,min:M,max:b}},c.toOtsuBinaryLine=function(t){var e=t.line,n=new u["default"]({x:e.length-1,y:1},e),r=a["default"].determineOtsuThreshold(n,5);return e=a["default"].sharpenLine(e),a["default"].thresholdImage(n,r),{line:e,threshold:r}},c.toBinaryLine=function(t){var e,n,r,o,a,i,u=t.min,c=t.max,l=t.line,s=u+(c-u)/2,d=[],h=(c-u)/12,p=-h;for(r=l[0]>s?f.DIR.UP:f.DIR.DOWN,d.push({pos:0,val:l[0]}),a=0;ae+n&&l[a+1]<1.5*s?f.DIR.DOWN:e+n>h&&l[a+1]>.5*s?f.DIR.UP:r,r!==o&&(d.push({pos:a,val:l[a]}),r=o);for(d.push({pos:l.length,val:l[l.length-1]}),i=d[0].pos;is?0:1;for(a=1;ad[a].val?d[a].val+(d[a+1].val-d[a].val)/3*2|0:d[a+1].val+(d[a].val-d[a+1].val)/3|0,i=d[a].pos;ih?0:1;return{line:l,threshold:h}},c.debug={printFrequency:function(t,e){var n,r=e.getContext("2d");for(e.width=t.length,e.height=256,r.beginPath(),r.strokeStyle="blue",n=0;nr;r++)i[r]=i[r+2];i[4]=0,i[5]=0,l--}else l++;i[l]=1,f=!f}return null},o.prototype._decode=function(){var t,e,n=this,r=n._findStart(),o=null,a=!1,i=[],u=0,c=0,f=[],l=[],s=!1;if(null===r)return null;switch(o={code:r.code,start:r.start,end:r.end},l.push(o),c=o.code,o.code){case n.START_CODE_A:t=n.CODE_A;break;case n.START_CODE_B:t=n.CODE_B;break;case n.START_CODE_C:t=n.CODE_C;break;default:return null}for(;!a;){if(e=s,s=!1,o=n._decodeCode(o.end),null!==o)switch(o.code!==n.STOP_CODE&&(f.push(o.code),u++,c+=u*o.code),l.push(o),t){case n.CODE_A:if(o.code<64)i.push(String.fromCharCode(32+o.code));else if(o.code<96)i.push(String.fromCharCode(o.code-64));else switch(o.code){case n.CODE_SHIFT:s=!0,t=n.CODE_B;break;case n.CODE_B:t=n.CODE_B;break;case n.CODE_C:t=n.CODE_C;break;case n.STOP_CODE:a=!0}break;case n.CODE_B:if(o.code<96)i.push(String.fromCharCode(32+o.code));else switch(o.code){case n.CODE_SHIFT:s=!0,t=n.CODE_A;break;case n.CODE_A:t=n.CODE_A;break;case n.CODE_C:t=n.CODE_C;break;case n.STOP_CODE:a=!0}break;case n.CODE_C:switch(o.code<100&&i.push(o.code<10?"0"+o.code:o.code),o.code){case n.CODE_A:t=n.CODE_A;break;case n.CODE_B:t=n.CODE_B;break;case n.STOP_CODE:a=!0}}else a=!0;e&&(t=t===n.CODE_A?n.CODE_B:n.CODE_A)}return null===o?null:(o.end=n._nextUnset(n._row,o.end),n._verifyTrailingWhitespace(o)?(c-=u*f[f.length-1],c%103!==f[f.length-1]?null:i.length?(i.splice(i.length-1,1),{code:i.join(""),start:r.start,end:o.end,codeset:t,startInfo:r,decodedCodes:l,endInfo:o}):null):null)},i["default"].prototype._verifyTrailingWhitespace=function(t){var e,n=this;return e=t.end+(t.end-t.start)/2,ei)return Number.MAX_VALUE;r+=o}return r/a},n.prototype._nextSet=function(t,e){var n;for(e=e||0,n=e;n1)for(n=0;nr?(f.start=n-i,f.end=n,f.counter=o,f):null;c++,o[c]=1,u=!u}}else for(o.push(0),n=i;nt?0:t,r=t;e>r;r++)if(this._row[r]!==n)return!1;return!0},n.prototype._fillCounters=function(t,e,n){var r,o=this,a=0,i=[];for(n="undefined"!=typeof n?n:!0,t="undefined"!=typeof t?t:o._nextUnset(o._row),e=e||o._row.length,i[a]=0,r=t;e>r;r++)o._row[r]^n?i[a]++:(a++,i[a]=1,n=!n);return i},Object.defineProperty(n.prototype,"FORMAT",{value:"unknown",writeable:!1}),n.DIRECTION={FORWARD:1,REVERSE:-1},n.Exception={StartNotFoundException:"Start-Info was not found!",CodeNotFoundException:"Code could not be found!",PatternNotFoundException:"Pattern could not be found!"},n.CONFIG_KEYS={},e["default"]=n,t.exports=e["default"]},function(t,e,n){"use strict";function r(t){return t&&t.__esModule?t:{"default":t}}function o(t){i["default"].call(this,t)}Object.defineProperty(e,"__esModule",{value:!0});var a=n(26),i=r(a),u={CODE_L_START:{value:0},MODULO:{value:7},CODE_G_START:{value:10},START_PATTERN:{value:[1/3*7,1/3*7,1/3*7]},STOP_PATTERN:{value:[1/3*7,1/3*7,1/3*7]},MIDDLE_PATTERN:{value:[.2*7,.2*7,.2*7,.2*7,.2*7]},CODE_PATTERN:{value:[[3,2,1,1],[2,2,2,1],[2,1,2,2],[1,4,1,1],[1,1,3,2],[1,2,3,1],[1,1,1,4],[1,3,1,2],[1,2,1,3],[3,1,1,2],[1,1,2,3],[1,2,2,2],[2,2,1,2],[1,1,4,1],[2,3,1,1],[1,3,2,1],[4,1,1,1],[2,1,3,1],[3,1,2,1],[2,1,1,3]]},CODE_FREQUENCY:{value:[0,11,13,14,19,25,28,21,22,26]},SINGLE_CODE_ERROR:{value:.67},AVG_CODE_ERROR:{value:.27},FORMAT:{value:"ean_13",writeable:!1}};o.prototype=Object.create(i["default"].prototype,u),o.prototype.constructor=o,o.prototype._decodeCode=function(t,e){var n,r,o,a,i=[0,0,0,0],u=this,c=t,f=!u._row[c],l=0,s={error:Number.MAX_VALUE,code:-1,start:t,end:t};for(e||(e=u.CODE_PATTERN.length),n=c;nr;r++)o=u._matchPattern(a,u.CODE_PATTERN[r]),ou.AVG_CODE_ERROR?null:s}}else l++;i[l]=1,f=!f}return null},o.prototype._findPattern=function(t,e,n,r,o){var a,i,u,c,f,l=[],s=this,d=0,h={error:Number.MAX_VALUE,code:-1,start:0,end:0};for(e||(e=s._nextSet(s._row)),void 0===n&&(n=!1),void 0===r&&(r=!0),void 0===o&&(o=s.AVG_CODE_ERROR),a=0;ai))return h.error=i,h.start=a-c,h.end=a,h;if(!r)return null;for(u=0;u=0&&n._matchRange(t,e.start,0))return e;r=e.end,e=null}},o.prototype._verifyTrailingWhitespace=function(t){var e,n=this;return e=t.end+(t.end-t.start),er;r++){if(t=a._decodeCode(t.end),!t)return null;t.code>=a.CODE_G_START?(t.code=t.code-a.CODE_G_START,i|=1<<5-r):i|=0<<5-r,e.push(t.code),n.push(t)}if(o=a._calculateFirstDigit(i),null===o)return null;if(e.unshift(o),t=a._findPattern(a.MIDDLE_PATTERN,t.end,!0,!1),null===t)return null;for(n.push(t),r=0;6>r;r++){if(t=a._decodeCode(t.end,a.CODE_G_START),!t)return null;n.push(t),e.push(t.code)}return t},o.prototype._decode=function(){var t,e,n=this,r=[],o=[];return(t=n._findStart())?(e={code:t.code,start:t.start,end:t.end},o.push(e),(e=n._decodePayload(e,r,o))&&(e=n._findEnd(e.end,!1))?(o.push(e),n._checksum(r)?{code:r.join(""),start:t.start,end:e.end,codeset:"",startInfo:t,decodedCodes:o}:null):null):null},o.prototype._checksum=function(t){var e,n=0;for(e=t.length-2;e>=0;e-=2)n+=t[e];for(n*=3,e=t.length-1;e>=0;e-=2)n+=t[e];return n%10===0},e["default"]=o,t.exports=e["default"]},function(t,e,n){"use strict";function r(t){return t&&t.__esModule?t:{"default":t}}function o(){i["default"].call(this)}Object.defineProperty(e,"__esModule",{value:!0});var a=n(26),i=r(a),u=n(17),c=r(u),f={ALPHABETH_STRING:{value:"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ-. *$/+%"},ALPHABET:{value:[48,49,50,51,52,53,54,55,56,57,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,45,46,32,42,36,47,43,37]},CHARACTER_ENCODINGS:{value:[52,289,97,352,49,304,112,37,292,100,265,73,328,25,280,88,13,268,76,28,259,67,322,19,274,82,7,262,70,22,385,193,448,145,400,208,133,388,196,148,168,162,138,42]},ASTERISK:{value:148},FORMAT:{value:"code_39",writeable:!1}};o.prototype=Object.create(i["default"].prototype,f),o.prototype.constructor=o,o.prototype._toCounters=function(t,e){var n,r=this,o=e.length,a=r._row.length,i=!r._row[t],u=0;for(c["default"].init(e,0),n=t;a>n;n++)if(r._row[n]^i)e[u]++;else{if(u++,u===o)break;e[u]=1,i=!i}return e},o.prototype._decode=function(){var t,e,n,r,o=this,a=[0,0,0,0,0,0,0,0,0],i=[],u=o._findStart();if(!u)return null;r=o._nextSet(o._row,u.end);do{if(a=o._toCounters(r,a),n=o._toPattern(a),0>n)return null;if(t=o._patternToChar(n),0>t)return null;i.push(t),e=r,r+=c["default"].sum(a),r=o._nextSet(o._row,r)}while("*"!==t);return i.pop(),i.length&&o._verifyTrailingWhitespace(e,r,a)?{code:i.join(""),start:u.start,end:r,startInfo:u,decodedCodes:i}:null},o.prototype._verifyTrailingWhitespace=function(t,e,n){var r,o=c["default"].sum(n);return r=e-t-o,3*r>=o?!0:!1},o.prototype._patternToChar=function(t){var e,n=this;for(e=0;ee&&(r=t[n]);return r},o.prototype._toPattern=function(t){for(var e,n,r=t.length,o=0,a=r,i=0,u=this;a>3;){for(o=u._findNextWidth(t,o),a=0,e=0,n=0;r>n;n++)t[n]>o&&(e|=1<n&&a>0;n++)if(t[n]>o&&(a--,2*t[n]>=i))return-1;return e}}return-1},o.prototype._findStart=function(){var t,e,n,r=this,o=r._nextSet(r._row),a=o,i=[0,0,0,0,0,0,0,0,0],u=0,c=!1;for(t=o;te;e++)i[e]=i[e+2];i[7]=0,i[8]=0,u--}else u++;i[u]=1,c=!c}return null},e["default"]=o,t.exports=e["default"]},function(t,e,n){"use strict";function r(t){return t&&t.__esModule?t:{"default":t}}function o(){i["default"].call(this)}Object.defineProperty(e,"__esModule",{value:!0});var a=n(28),i=r(a),u={IOQ:/[IOQ]/g,AZ09:/[A-Z0-9]{17}/};o.prototype=Object.create(i["default"].prototype),o.prototype.constructor=o,o.prototype._decode=function(){var t=i["default"].prototype._decode.apply(this);if(!t)return null;var e=t.code;return e?(e=e.replace(u.IOQ,""),e.match(u.AZ09)?this._checkChecksum(e)?(t.code=e,t):null:(console.log("Failed AZ09 pattern code:",e),null)):null},o.prototype._checkChecksum=function(t){return!!t},e["default"]=o,t.exports=e["default"]},function(t,e,n){"use strict";function r(t){return t&&t.__esModule?t:{"default":t}}function o(){i["default"].call(this),this._counters=[]}Object.defineProperty(e,"__esModule",{value:!0});var a=n(26),i=r(a),u={ALPHABETH_STRING:{value:"0123456789-$:/.+ABCD"},ALPHABET:{value:[48,49,50,51,52,53,54,55,56,57,45,36,58,47,46,43,65,66,67,68]},CHARACTER_ENCODINGS:{value:[3,6,9,96,18,66,33,36,48,72,12,24,69,81,84,21,26,41,11,14]},START_END:{value:[26,41,11,14]},MIN_ENCODED_CHARS:{value:4},MAX_ACCEPTABLE:{value:2},PADDING:{value:1.5},FORMAT:{value:"codabar",writeable:!1}};o.prototype=Object.create(i["default"].prototype,u),o.prototype.constructor=o,o.prototype._decode=function(){var t,e,n,r,o,a=this,i=[];if(this._counters=a._fillCounters(),t=a._findStart(),!t)return null;r=t.startCounter;do{if(n=a._toPattern(r),0>n)return null;if(e=a._patternToChar(n),0>e)return null;if(i.push(e),r+=8,i.length>1&&a._isStartEnd(n))break}while(ra._counters.length?a._counters.length:r,o=t.start+a._sumCounters(t.startCounter,r-8),{code:i.join(""),start:t.start,end:o,startInfo:t,decodedCodes:i}):null},o.prototype._verifyWhitespace=function(t,e){return(0>=t-1||this._counters[t-1]>=this._calculatePatternLength(t)/2)&&(e+8>=this._counters.length||this._counters[e+7]>=this._calculatePatternLength(e)/2)?!0:!1},o.prototype._calculatePatternLength=function(t){var e,n=0;for(e=t;t+7>e;e++)n+=this._counters[e];return n},o.prototype._thresholdResultPattern=function(t,e){var n,r,o,a,i,u=this,c={space:{narrow:{size:0,counts:0,min:0,max:Number.MAX_VALUE},wide:{size:0,counts:0,min:0,max:Number.MAX_VALUE}},bar:{narrow:{size:0,counts:0,min:0,max:Number.MAX_VALUE},wide:{size:0,counts:0,min:0,max:Number.MAX_VALUE}}},f=e;for(o=0;o=0;a--)n=2===(1&a)?c.bar:c.space,r=1===(1&i)?n.wide:n.narrow,r.size+=u._counters[f+a],r.counts++,i>>=1;f+=8}return["space","bar"].forEach(function(t){var 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-
-

QuaggaJS

- -

An advanced barcode-scanner written in JavaScript

-
-
-
-

Working with file-input

- -

This example let's you select an image from your local filesystem. - QuaggaJS then tries to decode the barcode using - the preferred method (Code128 or EAN). - There is no server interaction needed as the - file is simply accessed through the File API.

- -

This also works great on a wide range of mobile-phones where the camera - access through getUserMedia is still very limited.

- -
-
- - -
-
- - - - - -
-
-
-
    -
    -
    -
    -
    -
    -

    - © Copyright by Christoph Oberhofer -

    -
    - - - - \ No newline at end of file diff --git a/example/file_input_require.js b/example/file_input_require.js deleted file mode 100644 index baf9498b..00000000 --- a/example/file_input_require.js +++ /dev/null @@ -1,161 +0,0 @@ -requirejs.config({ - "baseUrl" : "../src", - "shim" : { - "typedefs" : { - "deps" : [], - "exports" : "typedefs" - } - }, - - "paths" : { - "typedefs" : "typedefs", - "gl-matrix": "../node_modules/gl-matrix/dist/gl-matrix-min" - } -}); - -requirejs(['quagga'], function(Quagga) { - var App = { - init: function() { - App.attachListeners(); - }, - attachListeners: function() { - var self = this; - - $(".controls input[type=file]").on("change", function(e) { - if (e.target.files && e.target.files.length) { - App.decode(URL.createObjectURL(e.target.files[0])); - } - }); - - $(".controls button").on("click", function(e) { - var input = document.querySelector(".controls input[type=file]"); - if (input.files && input.files.length) { - App.decode(URL.createObjectURL(input.files[0])); - } - }); - - $(".controls .reader-config-group").on("change", "input, select", function(e) { - e.preventDefault(); - var $target = $(e.target), - value = $target.attr("type") === "checkbox" ? $target.prop("checked") : $target.val(), - name = $target.attr("name"), - state = self._convertNameToState(name); - - console.log("Value of "+ state + " changed to " + value); - self.setState(state, value); - }); - }, - _accessByPath: function(obj, path, val) { - var parts = path.split('.'), - depth = parts.length, - setter = (typeof val !== "undefined") ? true : false; - - return parts.reduce(function(o, key, i) { - if (setter && (i + 1) === depth) { - o[key] = val; - } - return key in o ? o[key] : {}; - }, obj); - }, - _convertNameToState: function(name) { - return name.replace("_", ".").split("-").reduce(function(result, value) { - return result + value.charAt(0).toUpperCase() + value.substring(1); - }); - }, - detachListeners: function() { - $(".controls input[type=file]").off("change"); - $(".controls .reader-config-group").off("change", "input, select"); - $(".controls button").off("click"); - }, - decode: function(src) { - var self = this, - config = $.extend({}, self.state, {src: src}); - - Quagga.decodeSingle(config, function(result) {}); - }, - setState: function(path, value) { - var self = this; - - if (typeof self._accessByPath(self.inputMapper, path) === "function") { - value = self._accessByPath(self.inputMapper, path)(value); - } - - self._accessByPath(self.state, path, value); - - console.log(JSON.stringify(self.state)); - App.detachListeners(); - App.init(); - }, - inputMapper: { - inputStream: { - size: function(value){ - return parseInt(value); - } - }, - numOfWorkers: function(value) { - return parseInt(value); - }, - decoder: { - readers: function(value) { - return [value + "_reader"]; - } - } - }, - state: { - inputStream: { - size: 640, - singleChannel: false - }, - locator: { - patchSize: "medium", - halfSample: true, - showCanvas: true - }, - numOfWorkers: 0, - decoder: { - readers: ["code_128_reader"], - showFrequency: true, - showPattern: true - }, - locate: true, - src: null - } - }; - - App.init(); - - Quagga.onProcessed(function(result) { - var drawingCtx = Quagga.canvas.ctx.overlay, - drawingCanvas = Quagga.canvas.dom.overlay; - - if (result) { - if (result.boxes) { - drawingCtx.clearRect(0, 0, parseInt(drawingCanvas.getAttribute("width")), parseInt(drawingCanvas.getAttribute("height"))); - result.boxes.filter(function (box) { - return box !== result.box; - }).forEach(function (box) { - Quagga.ImageDebug.drawPath(box, {x: 0, y: 1}, drawingCtx, {color: "green", lineWidth: 2}); - }); - } - - if (result.box) { - Quagga.ImageDebug.drawPath(result.box, {x: 0, y: 1}, drawingCtx, {color: "#00F", lineWidth: 2}); - } - - if (result.codeResult && result.codeResult.code) { - Quagga.ImageDebug.drawPath(result.line, {x: 'x', y: 'y'}, drawingCtx, {color: 'red', lineWidth: 3}); - } - } - }); - - Quagga.onDetected(function(result) { - var code = result.codeResult.code, - $node, - canvas = Quagga.canvas.dom.image; - - $node = $('

    • '); - $node.find("img").attr("src", canvas.toDataURL()); - $node.find("h4.code").html(code + " (" + result.codeResult.format + ")"); - $("#result_strip ul.thumbnails").prepend($node); - }); -}); \ No newline at end of file diff --git a/package.json b/package.json index 7c6ea57a..4f0eb058 100644 --- a/package.json +++ b/package.json @@ -31,8 +31,7 @@ "karma-webpack": "^1.7.0", "mocha": "^2.3.2", "sinon": "^1.16.1", - "webpack": "^1.12.2", - "webpack-core": "^0.6.7" + "webpack": "^1.12.2" }, "directories": { "doc": "doc" @@ -41,7 +40,7 @@ "test": "grunt test", "integrationtest": "grunt integrationtest", "build": "webpack && webpack --config webpack.config.min.js && grunt uglyasm && webpack --config webpack.node.config.js", - "dev-server": "webpack-dev-server" + "watch": "webpack --watch" }, "repository": { "type": "git",