virtual int NbNodes() const;
virtual SMDS_NodeIteratorPtr GetNodes() const;
virtual bool Contains(const SMDS_MeshElement * ME) const; // check if elem or node is in
virtual int NbNodes() const;
virtual SMDS_NodeIteratorPtr GetNodes() const;
virtual bool Contains(const SMDS_MeshElement * ME) const; // check if elem or node is in