矩阵基础知识（二）

 

import flash.events.Event;

import flash.geom.Matrix;



var angle:Number=0;

var cameraM:Matrix =new Matrix();

var mcM:Matrix=mc.transform.matrix;



this.addEventListener (Event.ENTER_FRAME,loop);

function loop(e:Event):void

{

    angle++;

    var tempM:Matrix=mcM.clone();

    cameraM.identity();

    cameraM.createBox(1,1,angle*Math.PI/180,100*Math.cos(angle*Math.PI/180)+275,100*Math.sin(angle*Math.PI/180)+200);

    camera.transform.matrix=cameraM;

    cameraM.invert();

    tempM.concat(cameraM);

    mc.transform.matrix=tempM;

    if(!camera.contains(mc))camera.addChild(mc);

}