矩阵基础知识（三）

 

import flash.display.MovieClip;
import flash.geom.Matrix;
import flash.events.MouseEvent;

var sp:MovieClip=new Container();
var containClone:MovieClip=new Container();
var rect:MovieClip=new Rect();
this.addChild(sp);
sp.x = sp.y = 200;
sp.addChild(rect);
rect.x = 100;
rect.y = 50;
var m0:Matrix = rect.transform.matrix;
var m1:Matrix;
var m2:Matrix;
rectBtn.addEventListener(MouseEvent.CLICK,onClick);
function onClick(e:MouseEvent):void
{
    rect.rotation += 10;
    m2 = rect.transform.matrix;
    //rectBtn.removeEventListener(MouseEvent.CLICK,onClick);
    matrixBtn.addEventListener(MouseEvent.CLICK,onClick2);
}
function onClick2(e:MouseEvent):void
{
    //matrixBtn.removeEventListener(MouseEvent.CLICK,onClick2);
    m1=m0.clone();
    m1.invert();
    m1.concat(m2);
    if(!containClone)containClone=new Container();
    containClone.transform.matrix = m1;
    sp.addChild( containClone);

}