localToGlobal()和globalToLocal()
2011-11-17 11:12
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localToGlobal
1.localToGlobal必须是点的父组件去取值:pointParent.localToGlobal(new Point(point.x,point.y));
2.当要确定坐标的组件是popUp属性的,且父级窗口大小可变化,此时要弹出组件随父级窗口大小变化的情况下,在监听Resize事件的时候,需要调用重写过updateDisplayList的方法,而此时的updateDisplayList方法需要延迟获取width,height属性,因为拖动的时候Point有可能获取的并不是最终坐标:
globalToLocal
要得到local组件中的坐标,必须由local组件去取值:local.globalToLocal(new
Point(globalPoint.x,globalPoint.y));
1.localToGlobal必须是点的父组件去取值:pointParent.localToGlobal(new Point(point.x,point.y));
2.当要确定坐标的组件是popUp属性的,且父级窗口大小可变化,此时要弹出组件随父级窗口大小变化的情况下,在监听Resize事件的时候,需要调用重写过updateDisplayList的方法,而此时的updateDisplayList方法需要延迟获取width,height属性,因为拖动的时候Point有可能获取的并不是最终坐标:
private function onResize(event:ResizeEvent):void { setTimeout(function():void { updateDisplayList(width, height); },1000); }
globalToLocal
要得到local组件中的坐标,必须由local组件去取值:local.globalToLocal(new
Point(globalPoint.x,globalPoint.y));
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