|
Note : this concept is deprecated since Cgal 3.6, as the only class using it, Triangulation_hierarchy_3 has been deprecated as well.
The vertex base used by Triangulation_hierarchy_3 must provide access to two vertex handles for linking between the levels of the hierarchy.
| Vertex_handle | v.up () const | Returns the Vertex_handle pointing to the level above. |
| Vertex_handle | v.down () const | Returns the Vertex_handle pointing to the level below. |
| void | v.set_up ( Vertex_handle v) | Sets the Vertex_handle pointing to the level above to v. |
| void | v.set_down ( Vertex_handle v) | Sets the Vertex_handle pointing to the level below to v. |
CGAL::Triangulation_hierarchy_vertex_base_3