virtual vtkIdType GetNumberOfClippingPlanes() = 0;
virtual vtkPlane* GetClippingPlane(vtkIdType theID) = 0;
virtual vtkIdType AddClippingPlane(vtkPlane* thePlane) = 0;
+ virtual void AddOpenGLClippingPlane(vtkPlane* thePlane) = 0;
+ virtual void SetOpenGLClippingPlane() = 0;
virtual TVisualObjPtr GetObject() = 0;