## CGAL::Constrained_triangulation_face_base_2<Traits,Fb>

### Definition

The class Constrained_triangulation_face_base_2<Traits,Fb> is the default model for the concept ConstrainedTriangulationFaceBase_2 to be used as base face class of constrained triangulations.

#include <CGAL/Constrained_triangulation_face_base_2.h>

### Is Model for the Concept

ConstrainedTriangulationFaceBase_2

### Parameters

The first template parameter is a geometric traits.

The second template parameter has to be a model of the concept TriangulationFaceBase_2. Its default is CGAL::Triangulation_face_base_2<Traits>

### Inherits From

The class Constrained_triangulation_face_base_2<Traits,Fb> derives from its parameter Fb. and add 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>