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// Copyright (c) 1997 INRIA Sophia-Antipolis (France).
// All rights reserved.
//
// This file is part of CGAL (www.cgal.org); you may redistribute it under
// the terms of the Q Public License version 1.0.
// See the file LICENSE.QPL distributed with CGAL.
//
// Licensees holding a valid commercial license may use this file in
// accordance with the commercial license agreement provided with the software.
//
// This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
// WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
//
// $URL: svn+ssh://scm.gforge.inria.fr/svn/cgal/branches/CGAL-3.2-branch/Triangulation_2/include/CGAL/Constrained_triangulation_face_base_2.h $
// $Id: Constrained_triangulation_face_base_2.h 28567 2006-02-16 14:30:13Z lsaboret $
//
//
// Author(s) : Mariette Yvinec
#ifndef CGAL_CONSTRAINED_TRIANGULATION_FACE_BASE_2_H
#define CGAL_CONSTRAINED_TRIANGULATION_FACE_BASE_2_H
#include <CGAL/triangulation_assertions.h>
#include <CGAL/Triangulation_short_names_2.h>
#include <CGAL/Triangulation_ds_face_base_2.h>
CGAL_BEGIN_NAMESPACE
template <class Gt, class Fb = Triangulation_face_base_2<Gt> >
class Constrained_triangulation_face_base_2
: public Fb
{
typedef Fb Base;
typedef typename Fb::Triangulation_data_structure TDS;
public:
typedef Gt Geom_traits;
typedef TDS Triangulation_data_structure;
typedef typename TDS::Vertex_handle Vertex_handle;
typedef typename TDS::Face_handle Face_handle;
template < typename TDS2 >
struct Rebind_TDS {
typedef typename Fb::template Rebind_TDS<TDS2>::Other Fb2;
typedef Constrained_triangulation_face_base_2<Gt,Fb2> Other;
};
protected:
bool C[3];
public:
Constrained_triangulation_face_base_2()
: Base()
{
set_constraints(false,false,false);
}
Constrained_triangulation_face_base_2(Vertex_handle v0,
Vertex_handle v1,
Vertex_handle v2)
: Base(v0,v1,v2)
{
set_constraints(false,false,false);
}
Constrained_triangulation_face_base_2(Vertex_handle v0,
Vertex_handle v1,
Vertex_handle v2,
Face_handle n0,
Face_handle n1,
Face_handle n2)
: Base(v0,v1,v2,n0,n1,n2)
{
set_constraints(false,false,false);
}
Constrained_triangulation_face_base_2(Vertex_handle v0,
Vertex_handle v1,
Vertex_handle v2,
Face_handle n0,
Face_handle n1,
Face_handle n2,
bool c0,
bool c1,
bool c2 )
: Base(v0,v1,v2,n0,n1,n2)
{
set_constraints(c0,c1,c2);
}
bool is_constrained(int i) const ;
void set_constraints(bool c0, bool c1, bool c2) ;
void set_constraint(int i, bool b);
void reorient();
void ccw_permute();
void cw_permute();
};
template <class Gt, class Fb>
inline void
Constrained_triangulation_face_base_2<Gt,Fb>::
set_constraints(bool c0, bool c1, bool c2)
{
C[0]=c0;
C[1]=c1;
C[2]=c2;
}
template <class Gt, class Fb>
inline void
Constrained_triangulation_face_base_2<Gt,Fb>::
set_constraint(int i, bool b)
{
CGAL_triangulation_precondition( i == 0 || i == 1 || i == 2);
C[i] = b;
}
template <class Gt, class Fb>
inline bool
Constrained_triangulation_face_base_2<Gt,Fb>::
is_constrained(int i) const
{
return(C[i]);
}
template <class Gt, class Fb>
inline void
Constrained_triangulation_face_base_2<Gt,Fb>::
reorient()
{
Base::reorient();
set_constraints(C[1],C[0],C[2]);
}
template <class Gt, class Fb>
inline void
Constrained_triangulation_face_base_2<Gt,Fb>::
ccw_permute()
{
Base::ccw_permute();
set_constraints(C[2],C[0],C[1]);
}
template <class Gt, class Fb>
inline void
Constrained_triangulation_face_base_2<Gt,Fb>::
cw_permute()
{
Base::cw_permute();
set_constraints(C[1],C[2],C[0]);
}
CGAL_END_NAMESPACE
#endif //CGAL_CONSTRAINED_TRIANGULATION_FACE_BASE_2_H
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