+ /// \brief Return list of features which are not fully constrained
+ virtual void getUnderconstrainedGeometry(std::set<ObjectPtr>& theFeatures) const = 0;
+
+ /// \brief Verify, the sketch contains degenerated geometry
+ /// after resolving the set of constraints
+ /// \return STATUS_OK if the geometry is valid, STATUS_DEGENERATED otherwise.
+ virtual PlaneGCSSolver_Solver::SolveStatus checkDegeneratedGeometry() const = 0;
+