From 1dcb5f92ce1b9d282842b9b021f118f874c25b41 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E7=B4=A2=E4=B8=98?= <yezengyue@gmail.com>
Date: Fri, 28 Feb 2020 11:40:41 +0800
Subject: [PATCH] =?UTF-8?q?fix:=20=E4=BF=AE=E5=A4=8Dx,=20y=E4=B8=BA0?=
 =?UTF-8?q?=E7=9A=84=E6=83=85=E5=86=B5?=
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---
 src/graphic/event/controller.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/graphic/event/controller.js b/src/graphic/event/controller.js
index d0f24787b..86d7beb99 100644
--- a/src/graphic/event/controller.js
+++ b/src/graphic/event/controller.js
@@ -1,4 +1,5 @@
 import { getRelativePosition } from '../../util/dom';
+import { isNumber } from '../../util/common';
 
 // 计算滑动的方向
 const calcDirection = (start, end) => {
@@ -35,7 +36,7 @@ const convertPoints = (ev, canvas) => {
     const { x, y, clientX, clientY } = touch;
     let point;
     // 小程序环境会有x,y
-    if (x && y) {
+    if (isNumber(x) || isNumber(y)) {
       point = { x, y };
     } else {
       // 浏览器环境再计算下canvas的相对位置