BitmapData.draw() failing to draw entire MovieClip

OK. I screwed up the translation logic and it caused the weird amoeba .

This gets me closer, but it's not as "clean", since my object has a thick stroke and it's hard to get its actual pixel width to make the rotation accurate.

Thanks!

I think you're misunderstanding the question.  I am using a matrix to transform it, and that lower right quadrant of the MovieClip rotates perfectly as inended, but the rest of the object isn't captured as if it weren't there.

Here's the code:

package com.magnoliamultimedia.datastructures
{
import flash.display.BitmapData;
import flash.display.IBitmapDrawable;
import com.magnoliamultimedia.datastructures.IChain;
import com.magnoliamultimedia.datastructures.IChainable;
import flash.geom.Matrix;
import flash.geom.Rectangle;

/**
  * RotationChain takes an IBitmapDrawable and rotates
  * it through 360 degrees, creating a BitmapDataLink
  * for each incremental rotation
  * @author Amy Blankenship
  */
public class RotationChain implements IChain
{
  //private storage for the chain entry point
  private var _defaultNode:IChainable;
  /**
   * Constructor
   * @param rotatingObj object to rotate
   * @param degrees number of degrees to rotate (must divide evenly into 360)
   */
  public function RotationChain(rotatingObj:IBitmapDrawable, degrees:int=5, size:int=200)
  {
   //first, check if degrees divides evenly into 360
   if (360 % degrees != 0) {
    throw new Error('Degrees must divide evenly into 360');
    //set to the default, so we still have a usable chain
    degrees = 5;
   }
  
   var matrix:Matrix = new Matrix();
   var bd:BitmapData;
   var bdl:BitmapDataLink;
   var lastBDL:BitmapDataLink;
   var loops:int = 360 / degrees - 1;
   for (var i:int = 0; i < loops; i++) {
    /* Take "snapshot" of rotating obj with matrix applied.
     *  On the first loop, use the identity matrix.
     */
    bd = new BitmapData(size, size);
    bd.draw(rotatingObj, matrix);
    bdl = new BitmapDataLink(bd);
    //check for any previous links that might have been added
    if (lastBDL == null) {
     //no? this is the default
     defaultNode = bdl;
    } else {
     //set up reciprocal arrangement with last node
     bdl.previous = lastBDL;
     lastBDL.next = bdl;
    }
    //set this link as the last link
    lastBDL = bdl;
    //rotate next snapshot
    matrix.rotate(degrees);
   }
   //connect the last link to the first link to make a circular chain
   lastBDL.next = defaultNode;
   defaultNode.previous = lastBDL;
  }
 
  /* INTERFACE com.magnoliamultimedia.datastructures.IChain */
 
  public function get defaultNode():IChainable
  {
   return _defaultNode;
  }
 
  public function set defaultNode(value:IChainable):void
  {
   _defaultNode = value;
  }
 
}

}

Is there anyone out there who does this kind of stuff?

Thanks;

Amy

the draw() method "draws" the untransformed movieclip.  in your situation, that's the unrotated movieclip.

to "draw" the rotated movieclip use the matrix parameter in the draw() method.