private function init():void
    {
     stage.scaleMode = StageScaleMode.NO_SCALE;
     stage.align = StageAlign.TOP_LEFT;
     
     segment0 = new animation_ch13_Segment(100, 20);
     addChild(segment0);
     segment0.x = 200;
     segment0.y = 100;
     
     segment1 = new animation_ch13_Segment(100, 20);
     addChild(segment1);
     segment1.x = segment0.getPin().x;
     segment1.y = segment0.getPin().y;
     
     addEventListener(Event.ENTER_FRAME, onEnterFrame);
    }