Rotate Events

Rotate events receive the gesture event properties.
译：旋转事件手势属性。

1. Events.Rotate — Rotate a layer with two pointers. 译：以两指针对一图层旋转
2. Events.RotateStart — Start rotating. 译：开始
3. Events.RotateEnd — End of rotating. 译：结束

layerA = new Layer
layerA.pinchable.enabled = true

layerA.on Events.Rotate, ->
    print layerA.rotation

Rotate Event Shortcuts
译：旋转事件快捷键

＃For Events.Rotate 
layerA.onRotate ->
    print "Currently rotating"

＃For Events.RotateStart 
layerA.onRotateStart ->
    print "Start rotating"

＃For Events.RotateEnd 
layerA.onRotateEnd ->
    print "End rotating"