mirror of https://github.com/CGAL/cgal
79 lines
2.3 KiB
C++
79 lines
2.3 KiB
C++
// Copyright (c) 2009 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) : Stephane Tayeb
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//
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//******************************************************************************
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// File Description :
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//******************************************************************************
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#ifndef CGAL_TRIANGLE_ACCESSOR_3_H
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#define CGAL_TRIANGLE_ACCESSOR_3_H
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#include <CGAL/Polyhedron_3.h>
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namespace CGAL {
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template <typename Polyhedron, typename K>
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class Triangle_accessor_3 {
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// This class template should never be instantiated, but only its
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// specializations.
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typedef typename Polyhedron::Error_bad_match Error_bad_match;
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};
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template < class K,class Items,
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template < class T, class I, class A>
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class T_HDS,
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class Alloc>
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class Triangle_accessor_3<Polyhedron_3<K,Items,T_HDS,Alloc>, K >
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{
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typedef Polyhedron_3<K,Items,T_HDS,Alloc> Polyhedron;
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public:
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typedef typename K::Triangle_3 Triangle_3;
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typedef typename Polyhedron::Facet_const_iterator Triangle_iterator;
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typedef typename Polyhedron::Facet_const_handle Triangle_handle;
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Triangle_accessor_3() { }
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Triangle_iterator triangles_begin(const Polyhedron& p) const
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{
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return p.facets_begin();
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}
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Triangle_iterator triangles_end(const Polyhedron& p) const
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{
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return p.facets_end();
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}
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Triangle_3 triangle(const Triangle_handle& handle) const
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{
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typedef typename K::Point_3 Point;
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const Point& a = handle->halfedge()->vertex()->point();
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const Point& b = handle->halfedge()->next()->vertex()->point();
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const Point& c = handle->halfedge()->next()->next()->vertex()->point();
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return Triangle_3(a,b,c);
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}
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};
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} // end namespace CGAL
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#endif // POLYHEDRON_TRIANGLE_ACCESSOR_H
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