public Control()
 {
     PickingLocalBounding = new BoundingBox(Vector3.Zero, new Vector3(1, 1, 0));
     LayoutEngine         = new ForwardLayoutEngine();
 }
 public Control()
 {
     PickingLocalBounding = new BoundingBox(Vector3.Zero, new Vector3(1, 1, 0));
     LayoutEngine = new ForwardLayoutEngine();
 }