public void ReadChildData(BinaryReader reader)
 {
     for (int x = 0; x < _controlPoints.Count; x++)
     {
         ControlPoints.AddNew();
         ControlPoints[x].Read(reader);
     }
     for (int x = 0; x < _controlPoints.Count; x++)
     {
         ControlPoints[x].ReadChildData(reader);
     }
 }