The mitk::PlanarEllipse currently uses 4 Control-Points and two Polylines although the documentation of the class itself states, that an ellipse has 3 control-points by definition.

The first and the fourth control-point form a second polyline for which I cannot see any purpose. I have seen, that Peter obviously had something in mind when implementing that code, but it seems to be broken.

Does someone know what the purpose of this extension is or can it simply be removed??