ExtendedTreeNode

public class ExtendedTreeNode : TreeNode
        {
            private Vector3D _Pos;
            //private int _childCount;

            public void setPos(Vector3D Pos)
            {
                _Pos = Pos;
            }
            //          public void setChildCount(int childCount)
            //          {
                //              _childCount = childCount;
            //          }
            public Vector3D getPos()
            {
                return _Pos;
            }
            //          public int getChildCount()
            //          {
                //              return _childCount;
            //          }

            public ExtendedTreeNode()
            {
                _Pos = new Vector3D(0.1d,0.1d,0.1d);
                //              _childCount = 0;
            }
        }