BitmapData’yı Matrix ile Döndürme

<?xml version="1.0" encoding="utf-8"?>
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009" 
			   xmlns:s="library://ns.adobe.com/flex/spark" 
			   xmlns:mx="library://ns.adobe.com/flex/halo" width="750" height="125" initialize="init()">
 
	<fx:Script>
		<![CDATA[
			import flash.geom.Matrix;
 
			private var tmp_bitmapd:BitmapData = new BitmapData(75,50);
			private var derece:Number = 0;
 
			private function init():void{
				this.addEventListener(Event.ENTER_FRAME,dondur);
				var spr:Sprite = new Sprite();
				spr.graphics.beginFill(0xFF0000,0.8);
				spr.graphics.drawRect(0,0,50,50);
				spr.graphics.endFill();
 
				tmp_bitmapd.draw(spr);
			}
			private function dondur(evt:Event):void{
				derece++;
 
				var mtrx:Matrix = new Matrix();				
				mtrx.translate( -tmp_bitmapd.width / 2  ,-tmp_bitmapd.width / 2);
				mtrx.rotate(derece * (Math.PI / 180));
				mtrx.translate( tmp_bitmapd.width / 2  ,tmp_bitmapd.width / 2 );
 
				imageView.graphics.clear();
				imageView.graphics.beginBitmapFill(tmp_bitmapd,mtrx,false);
				imageView.graphics.drawRect(0, 0, imageView.width, imageView.height);
				imageView.graphics.endFill();
			}
		]]>
	</fx:Script>
	<mx:Image id="imageView" width="75" height="50"/>
 
 
</s:Application>