public void CodePlane2d(ref Plane2d v)
 {
     throw new NotImplementedException();
 }
 public void CodePlane2d(ref Plane2d v)
 {
     CodeV2d(ref v.Normal); CodeDouble(ref v.Distance);
 }
 public void CodePlane2d(ref Plane2d v)
 {
     AddValue(v.ToString());
 }