code: function (newX, newY) {
              var bounds = this.getBounds();
              bounds.pos.set(newX, newY, bounds.pos.z);
              // XXX: This is called from the constructor, before it gets an ancestor
              if (this.ancestor instanceof me.Container && !this.floating) {
                  bounds.pos.add(this.ancestor._absPos);
              }
              return bounds;
          }
docs: update the renderable's bounding rect (private)
  @ignore
  @name updateBoundsPos
  @memberOf me.Renderable.prototype
  @function