\( \newcommand{\E}{\mathrm{E}} \) \( \newcommand{\A}{\mathrm{A}} \) \( \newcommand{\R}{\mathrm{R}} \) \( \newcommand{\N}{\mathrm{N}} \) \( \newcommand{\Q}{\mathrm{Q}} \) \( \newcommand{\Z}{\mathrm{Z}} \) \( \def\ccSum #1#2#3{ \sum_{#1}^{#2}{#3} } \def\ccProd #1#2#3{ \sum_{#1}^{#2}{#3} }\)

CGAL 4.8 - 2D Triangulation

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TriangulationFaceBase_2 Concept Reference
Concepts

## Definition

The concept `TriangulationFaceBase_2` describes the requirements for the base face class of a triangulation data structure that is itself plugged into a basic triangulation or a Delaunay triangulation.

This concept refines the concept `TriangulationDSFaceBase_2` and could add geometric information. In fact, currently the triangulations do not store any geometric information in the faces and, thus this concept is just equal to `TriangulationDSFaceBase_2` and only provided for symmetry with the vertex case.

Refines:
  `TriangulationDSFaceBase_2`

Has Models:
  `CGAL::Triangulation_face_base_2<Traits>`

See Also
  `TriangulationVertexBase_2`
  `CGAL::Triangulation_face_base_2<Traits>`
  `CGAL::Triangulation_2<Traits,Tds>`
  `CGAL::Delaunay_triangulation_2<Traits,Tds>`