Stroke::const_vertex_iterator Stroke::vertices_end() const { return const_vertex_iterator(_Vertices.end(), _Vertices.begin(), _Vertices.end()); }
ViewEdge::const_vertex_iterator ViewEdge::vertices_last() const { return const_vertex_iterator(this->_FEdgeB->vertexB(), _FEdgeB, 0); }
ViewEdge::const_vertex_iterator ViewEdge::vertices_end() const { return const_vertex_iterator(0, _FEdgeB, 0); }
//! embedding vertex iterator ViewEdge::const_vertex_iterator ViewEdge::vertices_begin() const { return const_vertex_iterator(this->_FEdgeA->vertexA(), 0, _FEdgeA); }