feat(animate): easing support function

antvis · Apr 23, 2018 · 8fb20b8 · 8fb20b8
1 parent 38d5535
commit 8fb20b8
Showing 1 changed file with 17 additions and 1 deletion.
diff --git a/src/graphic/animate/animator.js b/src/graphic/animate/animator.js
@@ -50,7 +50,13 @@ class Animator {
     const delay = cfg.delay || 0;
     const attrs = cfg.attrs || {};
     const duration = cfg.duration || 1000;
-    const easing = Easing[cfg.easing] || Easing.linear;
+
+    let easing; // 缓动函数
+    if (typeof (cfg.easing) === 'function') {
+      easing = cfg.easing;
+    } else {
+      easing = Easing[cfg.easing] || Easing.linear;
+    }
 
     const animInfo = {
       shape: this.shape,
@@ -85,6 +91,16 @@ class Animator {
     return this;
   }
 
+  onFrame(callback) { // 自定义每一帧动画的动作
+    if (this.animate) {
+      this.animate.onFrame = function(frame) {
+        callback(frame);
+      };
+    }
+
+    return this;
+  }
+
   onStart(callback) {
     if (this.animate) {
       this.animate.onStart = function() {