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CGAL 5.6.1 - 2D Triangulations
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The vertex of a triangulation included in a triangulation hierarchy has to provide some pointers to the corresponding vertices in the triangulations of the next and preceding levels. Therefore, the concept TriangulationHierarchyVertexBase_2 refines the concept TriangulationVertexBase_2, adding handles to the corresponding vertices in the next and previous level triangulations.
TriangulationVertexBase_2 CGAL::Triangulation_hierarchy_2<Tr> Operations | |
| Vertex_handle | up () |
| returns the corresponding vertex (if any) of the next level triangulation. | |
| Vertex_handle | down () |
| returns the corresponding vertex of the previous level triangulation. | |
| void | set_up (Vertex_handle u) |
| sets the handle pointing to to the corresponding vertex of the next level triangulation. | |
| void | set_down (Vertex_handle d) |
| sets the handle pointing to the corresponding vertex of the previous level triangulation. | |