mirror of https://github.com/CGAL/cgal
103 lines
3.0 KiB
C++
103 lines
3.0 KiB
C++
// Copyright (c) 1997 INRIA Sophia-Antipolis (France).
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// All rights reserved.
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//
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// This file is part of CGAL (www.cgal.org).
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// You can redistribute it and/or modify it under the terms of the GNU
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// General Public License as published by the Free Software Foundation,
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// either version 3 of the License, or (at your option) any later version.
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//
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// Licensees holding a valid commercial license may use this file in
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// accordance with the commercial license agreement provided with the software.
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//
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// This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
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// WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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//
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// $URL$
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// $Id$
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//
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//
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// Author(s) : Mariette Yvinec
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#ifndef CGAL_TRIANGULATION_FACE_BASE_2_H
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#define CGAL_TRIANGULATION_FACE_BASE_2_H
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#include <CGAL/config.h>
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#include <CGAL/triangulation_assertions.h>
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#include <CGAL/Triangulation_ds_face_base_2.h>
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namespace CGAL {
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template < typename Gt, typename Fb = Triangulation_ds_face_base_2<> >
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class Triangulation_face_base_2
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: public Fb
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{
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public:
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typedef Gt Geom_traits;
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typedef typename Fb::Vertex_handle Vertex_handle;
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typedef typename Fb::Face_handle Face_handle;
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template < typename TDS2 >
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struct Rebind_TDS {
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typedef typename Fb::template Rebind_TDS<TDS2>::Other Fb2;
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typedef Triangulation_face_base_2<Gt, Fb2> Other;
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};
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public:
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Triangulation_face_base_2()
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: Fb() {}
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Triangulation_face_base_2(Vertex_handle v0,
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Vertex_handle v1,
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Vertex_handle v2)
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: Fb(v0,v1,v2) {}
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Triangulation_face_base_2(Vertex_handle v0,
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Vertex_handle v1,
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Vertex_handle v2,
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Face_handle n0,
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Face_handle n1,
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Face_handle n2)
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: Fb(v0,v1,v2,n0,n1,n2) {}
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static int ccw(int i) {return Triangulation_cw_ccw_2::ccw(i);}
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static int cw(int i) {return Triangulation_cw_ccw_2::cw(i);}
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#ifndef CGAL_NO_DEPRECATED_CODE
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Vertex_handle mirror_vertex(int i) const;
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int mirror_index(int i) const;
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#endif
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};
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#ifndef CGAL_NO_DEPRECATED_CODE
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template < class Gt, class Fb >
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inline
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typename Triangulation_face_base_2<Gt,Fb>::Vertex_handle
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Triangulation_face_base_2<Gt,Fb>::
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mirror_vertex(int i) const
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{
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CGAL_triangulation_precondition ( this->neighbor(i) != Face_handle()
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&& this->dimension() >= 1);
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//return neighbor(i)->vertex(neighbor(i)->index(this->handle()));
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return this->neighbor(i)->vertex(mirror_index(i));
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}
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template < class Gt, class Fb >
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inline int
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Triangulation_face_base_2<Gt,Fb>::
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mirror_index(int i) const
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{
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// return the index of opposite vertex in neighbor(i);
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CGAL_triangulation_precondition (this->neighbor(i) != Face_handle() &&
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this->dimension() >= 1);
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if (this->dimension() == 1) {
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return 1 - (this->neighbor(i)->index(this->vertex(1-i)));
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}
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return this->ccw( this->neighbor(i)->index(this->vertex(this->ccw(i))));
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}
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#endif
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} //namespace CGAL
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#endif //CGAL_TRIANGULATION_FACE_BASE_2_H
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