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

CGAL 4.8 - 2D Triangulation

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CGAL::Constrained_triangulation_face_base_2< Traits, Fb > Class Template Reference
Vertex and Face Classes

`#include <CGAL/Constrained_triangulation_face_base_2.h>`

## Inherits from

Fb.

## Definition

The class `Constrained_triangulation_face_base_2` is the default model for the concept `ConstrainedTriangulationFaceBase_2` to be used as base face class of constrained triangulations.

Is Model Of:
  `ConstrainedTriangulationFaceBase_2`

Template Parameters

  Traits | must be a geometric traits.
  Fb | must be a model of the concept `TriangulationFaceBase_2`. Its default is `Triangulation_face_base_2<Traits>`

The class `Constrained_triangulation_face_base_2` derives from `Fb` and adds three Boolean to deal with information about constrained edges.

The member functions `cw(int i)`, `ccw(int i)` and `reorient` are overloaded to update information about constrained edges.

See Also
  `TriangulationFaceBase_2`
  `ConstrainedTriangulationFaceBase_2`
  `CGAL::Constrained_triangulation_2<Traits,Tds>`
  `CGAL::Triangulation_face_base_2<Traits>`

Examples:
  Triangulation_2/constrained.cpp, Triangulation_2/constrained_hierarchy_plus.cpp, Triangulation_2/constrained_plus.cpp, Triangulation_2/polygon_triangulation.cpp, and Triangulation_2/polylines_triangulation.cpp.