3D旋转效果 舞台有个影片剪辑mc

import flash.geom.Point;

stage.addEventListener(MouseEvent.MOUSE_DOWN,mdHandler);
stage.addEventListener(MouseEvent.MOUSE_UP,muHandler);
stage.addEventListener(MouseEvent.MOUSE_WHEEL, mouseWheelHandler);

var downPoint:Point=new Point;

function mdHandler(e:MouseEvent):void
{
	stage.addEventListener(MouseEvent.MOUSE_MOVE,mmHandler);
	//记录初始鼠标按下点
	downPoint.x = mouseX;
	downPoint.y = mouseY;
}
function mmHandler(e:MouseEvent):void
{
	//计算鼠标拖动到点的坐标和鼠标按下点之间的距离
	//鼠标目前所在的点减去鼠标初始点返回一个新的点
	/*	subtract()方法	 
		public function subtract(v:Point):Point
		从此点的坐标中减去另一个点的坐标以创建一个新点。
		参数:v:Point — 要减去的点。
		返回:Point — 新点。
	*/
	var temPoint:Point = new Point(mouseX,mouseY).subtract(downPoint);
	trace(temPoint)
	mc.rotationX +=  temPoint.y;
	mc.rotationY -=  temPoint.x;
	//再把这个点当初始点
	downPoint.x = mouseX;
	downPoint.y = mouseY;
}
//滚动鼠标滑轮事件
function mouseWheelHandler(e:MouseEvent):void
{
	mc.z -=  e.delta * 10;
}
function muHandler(e:MouseEvent):void
{
	stage.removeEventListener(MouseEvent.MOUSE_MOVE,mmHandler);
}