Package	graphics.drawing
Class	public class DistortPen
Inheritance	DistortPen Pen flash.utils.Proxy

This pen tesselates an area into severals triangles to allow free transform distortion on BitmapData Objects.

Example :

     import graphics.drawing.DistortPen ;
     
     stage.align     = "tl" ;
     stage.scaleMode = "noScale" ;
     
     var shape:Shape = new Shape() ;
     
     shape.x = 0 ;
     shape.y = 0 ;
     
     addChildAt( shape , 0 ) ;
     
     var bmp:BitmapData = new Girl(0,0) ; // Girl a BitmapData linked in the library of the SWF.
     
     var pen:DistortPen = new DistortPen( shape, bmp.width, bmp.height, 4, 4 ) ;
     
     pen.bitmapData = bmp
     
     pen.draw( p1 , p2 , p3 , p4 ) ;
     
     var enterFrame:Function = function (e:Event ):void
     {
         pen.draw( p1, p2, p3, p4 ) ;
     }
     
     var onStartDrag:Function = function( e:Event ):void
     {
         if ( e.target is MovieClip )
         {
             (e.target as MovieClip).startDrag() ;
             (e.target as MovieClip).addEventListener( Event.ENTER_FRAME , enterFrame ) ;
         }
     }
     
     var onStopDrag:Function = function( e:Event ):void
     {
         if ( e.target is MovieClip )
         {
             (e.target as MovieClip).stopDrag() ;
             (e.target as MovieClip).removeEventListener( Event.ENTER_FRAME , enterFrame ) ;
         }
     }
     
     // p1, p2, p3 and p4 are 4 little anchor MovieClip in the stage of the application.
     
     p1.buttonMode    = true ;
     p1.useHandCursor = true ;
     p1.addEventListener( MouseEvent.MOUSE_DOWN , onStartDrag ) ;
     p1.addEventListener( MouseEvent.MOUSE_UP   , onStopDrag  ) ;
     
     p2.buttonMode    = true ;
     p2.useHandCursor = true ;
     p2.addEventListener( MouseEvent.MOUSE_DOWN , onStartDrag ) ;
     p2.addEventListener( MouseEvent.MOUSE_UP   , onStopDrag  ) ;
     
     p3.buttonMode    = true ;
     p3.useHandCursor = true ;
     p3.addEventListener( MouseEvent.MOUSE_DOWN , onStartDrag ) ;
     p3.addEventListener( MouseEvent.MOUSE_UP   , onStopDrag  ) ;
     
     p4.buttonMode    = true ;
     p4.useHandCursor = true ;
     p4.addEventListener( MouseEvent.MOUSE_DOWN , onStartDrag ) ;
     p4.addEventListener( MouseEvent.MOUSE_UP   , onStopDrag  ) ;
     

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