/// Generates a vertex or edge by the give IO if it is an AIS created on trihedron
/// \param theIO a selected object
/// \return created shape or empty shape
+#ifdef BEFORE_TRIHEDRON_PATCH
TopoDS_Shape findAxisShape(Handle(AIS_InteractiveObject) theIO) const;
+#endif
private:
XGUI_Workshop* myWorkshop;