Scale BitmapData Method

gistfile1.as

protected static function scaleImage(bitmapData:BitmapData, width:Number, height:Number):BitmapData
{
        // Calculate the scaled size.
	var scale:Number;
	var scaledWidth:Number;
	var scaledHeight:Number;
			
	scale = Math.min(width/(bitmapData.width as Number), height/(bitmapData.height as Number))

	scaledHeight = bitmapData.height * scale;
	scaledWidth = bitmapData.width * scale;
			
	var scalingMatrix:Matrix = new Matrix();
	scalingMatrix.scale(scale, scale);
			
	// Scale the image.
	var scaledImage:BitmapData = new BitmapData(scaledWidth, scaledHeight, true, 0x00000000);
	scaledImage.draw(bitmapData, scalingMatrix, null, null, null, true);
	
	bitmapData.dispose();
			
	return scaledImage;
}