ActionScript实现把多张图片组合成一张图片

/**
 * ComingX.com Business License
 * 
 * Copyright 2012. All rights reserved.
 *
 * @Author: Lanjie_Shan
 * @Email:shanlanjie#hotmail.com
 * @Created date: 2012-6-21
 */
package
{
    import flash.display.Bitmap;
    import flash.display.BitmapData;
    import flash.display.BitmapDataChannel;
    import flash.display.Sprite;
    import flash.events.Event;
    import flash.geom.Point;
    import flash.geom.Rectangle;

    [SWF(width=800, height=600, frameRate=24, backgroundColor=0xE2E2E2)]    
    public class ImageGroupDemo extends Sprite
    {
        [Embed(source="aaa.png")]      
        public var BrownCollector:Class;  //图片大小为100*100
        public var canvas:BitmapData;
        public var spritesheet:BitmapData;
        public var rect:Rectangle;
        public function ImageGroupDemo()
        {
            spritesheet = (new BrownCollector() as Bitmap).bitmapData;
            canvas = new BitmapData(400,500,true,0xffffff);
            addChild(new  Bitmap(canvas));
            rect = new Rectangle(0,0,100,100);
            for(var j:int = 0; j<5; j++)
            {
                for(var i:int = 0; i<4; i++)
                {
                    canvas.copyPixels(spritesheet,rect,new Point(i*100,j*100) );   
                }
            }
        }
    }
}

效果图：