var lLength:int=300;
var magnify:Number=2;
var convexity:Number=0.7;
var mRoot=0.5;
var incX:int=2;
var incY:int=2;
var lRadius:Number=lLength/2;
var posX:int=-lRadius+1;
var posY:int=-lRadius+1;
var oDisplayBitmapData:BitmapData=new BitmapData(this.stage.stageWidth,this.stage.stageHeight);
var oMeinBild:MeinBild=new MeinBild(0,0);
var oLensBackgroundBitmapData:BitmapData=new BitmapData(this.stage.stageWidth,this.stage.stageHeight,false,0x008080);
var oLensBitmapData:BitmapData=new BitmapData(lLength,lLength,false,0x008080);

function doEvent(event:Event){
	oLensBackgroundBitmapData.fillRect(oLensBackgroundBitmapData.rect,0x008080);
	oLensBackgroundBitmapData.copyPixels(oLensBitmapData,oLensBitmapData.rect,new Point(posX,posY));
	var oDisplacementMapFilter:DisplacementMapFilter=new DisplacementMapFilter(oLensBackgroundBitmapData,new Point(0,0),2,4,256,256,DisplacementMapFilterMode.COLOR,0xFFFFFF,0);
	oDisplayBitmapData.applyFilter(oMeinBild,oMeinBild.rect,new Point(),oDisplacementMapFilter);	
	if(posX<=-lRadius || posX>=this.stage.stageWidth-lRadius-1){
		incX=-incX;
	}
	if(posY<=-lRadius || posY>=this.stage.stageHeight-lRadius-1){
		incY=-incY;
	}
	posX+=incX;
	posY+=incY;
}
//berechne Lupe
for (var yC:int=0; yC<lLength; yC++) {
	var yKreis:Number=(yC-lRadius)/lRadius;
	for (var xC:int=0; xC<lLength; xC++) {
		var xKreis:Number=(xC-lRadius)/lRadius;
		var sqrRadius:Number=Math.pow(xKreis*xKreis+yKreis*yKreis,1/mRoot);
		if (sqrRadius<=1) {
			var xColor:int=Math.round(lRadius*xKreis*((convexity*sqrRadius+1)/magnify-1))+128;
			var yColor:int=Math.round(lRadius*yKreis*((convexity*sqrRadius+1)/magnify-1))+128;
			oLensBitmapData.setPixel(xC,yC,xColor<<8|yColor);
		}
	}
}
var oBitmap=new Bitmap(oDisplayBitmapData);
addChild(oBitmap);
addEventListener(Event.ENTER_FRAME,doEvent);