CGAL 6.1 - 2D Triangulations

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TriangulationVertexBase_2 Concept Reference
Reference Manual » Concepts

Inherited by CGAL::Triangulation_vertex_base_with_id_2< typename TriangulationTraits_2, typename TriangulationVertexBase_2 >.

## Definition

The concept `TriangulationVertexBase_2` describes the requirements for the vertex base class of a triangulation data structure to be plugged in a basic, Delaunay or constrained triangulations.

The concept `TriangulationVertexBase_2` refines the concept `TriangulationDSVertexBase_2` adding geometric information: the vertex base of a triangulation stores a point.

Refines
  `TriangulationDSVertexBase_2`

Has models
  `CGAL::Triangulation_vertex_base_2<Traits,Vb>`

See also
  `TriangulationDataStructure_2`
  `TriangulationDataStructure_2::Vertex`
  `CGAL::Triangulation_vertex_base_2<Traits>`

## Types
typedef unspecified_type | Point
| Must be the same as the point type `TriangulationTraits_2::Point_2` defined by the geometric traits class of the triangulation.

## Creation
| TriangulationVertexBase_2 (Point p)
| constructs a vertex embedded in point `p`.
| TriangulationVertexBase_2 (Point p, Face_handle f)
| constructs a vertex embedded in point `p` and pointing on face `f`.

## Access Functions
Point | point () const
| returns the point.

## Setting
void | set_point (Point p)
| sets the point.
istream & | operator>> (istream &is, TriangulationVertexBase_2 &v)
| Inputs the non-combinatorial information given by the vertex: the point and other possible information.
ostream & | operator<< (ostream &os, const TriangulationVertexBase_2 &v)
| Outputs the non combinatorial operation given by the vertex: the point and other possible information.