CGAL 5.3  2D Triangulation

#include <CGAL/Constrained_triangulation_face_base_2.h>
Fb.
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.
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.
TriangulationFaceBase_2
ConstrainedTriangulationFaceBase_2
CGAL::Constrained_triangulation_2<Traits,Tds>
CGAL::Triangulation_face_base_2<Traits>