## CGAL::Triangulation_vertex_base_3<TriangulationTraits_3, TriangulationDSVertexBase_3>

### Definition

The class Triangulation_vertex_base_3 is a model of the concept TriangulationVertexBase_3, the base vertex of a 3D-triangulation. This class stores a point.

This class can be used directly or can serve as a base to derive other classes with some additional attributes (a color for example) tuned for a specific application.

#include <CGAL/Triangulation_vertex_base_3.h>

### Parameters

The first template argument is the geometric traits class TriangulationTraits_3 which provides the point type, Point_3. Users of the geometric triangulations (Section and Chapter ) are strongly advised to use the same geometric traits class TriangulationTraits_3 as the one used for Triangulation_3. This way, the point type defined by the base vertex is the same as the point type defined by the geometric traits class.

The second template argument is a combinatorial vertex base class from which Triangulation_vertex_base_3 derives. It has the default value Triangulation_ds_vertex_base_3<>.

### Is Model for the Concept

TriangulationVertexBase_3

### Inherits From

TriangulationDSVertexBase_3

### Types

typedef TriangulationTraits_3::Point_3
| Point;

### See Also

CGAL::Triangulation_cell_base_3
CGAL::Triangulation_ds_vertex_base_3
CGAL::Triangulation_vertex_base_with_info_3
CGAL::Triangulation_hierarchy_vertex_base_3