root/as3/PotrAs/samples/potras/algorithm/Main.as

package
{
        import com.nitoyon.potras.*;
        import flash.display.*;
        import flash.geom.*;
        import flash.events.*;

        [SWF(width="320", height="320")]
        public class Main extends Sprite
        {
                [Embed(source='data1.gif')]
                private var Data1:Class;

                private static const SCALE:int = 8;

                public function Main():void
                {
                        var bmp:Bitmap = new Data1();
                        var bmd:BitmapData = bmp.bitmapData;
                        addChild(bmp);
                        bmp.alpha = 0.5;

                        var curvesList:ClosedPathList = PotrAs.traceBitmap(bmp.bitmapData);

                        var sprite:Sprite = new Sprite();
                        sprite.graphics.lineStyle(0.5, 0x0066ff);
                        sprite.graphics.beginFill(0x0066ff, 0.4);
                        curvesList.draw(sprite.graphics);
                        sprite.graphics.endFill();
                        addChild(sprite);

                        bmp.scaleX = bmp.scaleY = sprite.scaleX = sprite.scaleY = SCALE;
                }
        }
}