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CGAL 6.0 - dD Triangulations
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The concept TriangulationDSVertex describes the requirements for the vertex base class of a CGAL::Triangulation_data_structure. It refines the concept TriangulationDataStructure::Vertex.
Since the CGAL::Triangulation_data_structure is the class which defines the handle types, the vertex base class has to be somehow parameterized by the triangulation data structure. But since the CGAL::Triangulation_data_structure itself is parameterized by the cell and vertex base classes, there is a cycle in the definition of these classes. In order to break the cycle, the base classes for cells and vertices which are plugged in to instantiate a Triangulation_data_structure use a void as triangulation data structure parameter. Then, the CGAL::Triangulation_data_structure uses a rebind mechanism (similar to the one specified in std::allocator) in order to plug itself as parameter in the full cell and vertex base classes. This mechanism requires that the base class provides a templated nested class Rebind_TDS that itself provides the subtype Rebind_TDS::Other which is the rebound version of the base class. This rebound base class is the class that the CGAL::Triangulation_data_structure actually uses as a base class for the class of CGAL::Triangulation_data_structure::Vertex.
CGAL::Triangulation_ds_vertex<TriangulationDataStructure_> CGAL::Triangulation_vertex<TriangulationTraits_, Data, TriangulationDSVertex_> Types | |
| typedef unspecified_type | Triangulation_data_structure |
The Triangulation_data_structure in which the vertex is defined/used. | |
| template<typename TDS2 > | |
| using | Rebind_TDS = unspecified_type |
This nested template class has to define a type Rebind_TDS<TDS2>::Other which is the rebound vertex, that is, the one that will be actually used by Triangulation_data_structure. | |
Creation | |
| TriangulationDSVertex () | |
| The default constructor (no incident full cell is set). | |
| TriangulationDSVertex (Full_cell_handle c) | |
Sets the incident full cell to c. | |
Memory Management | |
These member functions are required by See the documentation of | |
| void * | for_compact_container () const |
| void | for_compact_container (void *p) |
| using TriangulationDSVertex::Rebind_TDS = unspecified_type |
This nested template class has to define a type Rebind_TDS<TDS2>::Other which is the rebound vertex, that is, the one that will be actually used by Triangulation_data_structure.
The Rebind_TDS<TDS2>::Other type will be the real base class of Triangulation_data_structure::Vertex.
The Triangulation_data_structure in which the vertex is defined/used.
Must be a model of the TriangulationDataStructure concept.
| TriangulationDSVertex::TriangulationDSVertex | ( | Full_cell_handle | c | ) |
Sets the incident full cell to c.
c must not be the default-constructed Full_cell_handle.