145 lines
4.3 KiB
C++
145 lines
4.3 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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//
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// $URL: https://github.com/CGAL/cgal/blob/v5.1/Triangulation_2/include/CGAL/Triangulation_vertex_base_2.h $
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// $Id: Triangulation_vertex_base_2.h 0779373 2020-03-26T13:31:46+01:00 Sébastien Loriot
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// SPDX-License-Identifier: GPL-3.0-or-later OR LicenseRef-Commercial
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//
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//
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// Author(s) : Mariette Yvinec
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#ifndef CGAL_TRIANGULATION_VERTEX_BASE_2_H
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#define CGAL_TRIANGULATION_VERTEX_BASE_2_H
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#include <CGAL/license/Triangulation_2.h>
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#include <CGAL/config.h>
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#include <CGAL/Triangulation_ds_vertex_base_2.h>
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namespace CGAL {
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template < typename GT,
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typename Vb = Triangulation_ds_vertex_base_2<> >
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class Triangulation_vertex_base_2
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: public Vb
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{
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typedef typename Vb::Triangulation_data_structure Tds;
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public:
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typedef GT Geom_traits;
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typedef typename GT::Point_2 Point;
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typedef Tds Triangulation_data_structure;
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typedef typename Tds::Face_handle Face_handle;
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typedef typename Tds::Vertex_handle Vertex_handle;
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#ifndef CGAL_NO_DEPRECATED_CODE
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typedef typename Tds::Vertex_circulator Vertex_circulator; // needed for degree
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typedef typename Tds::Edge_circulator Edge_circulator; // needed for degree
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typedef typename Tds::Face_circulator Face_circulator; // needed for degree
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typedef typename Tds::size_type size_type; // needed for degree
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#endif
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template < typename TDS2 >
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struct Rebind_TDS {
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typedef typename Vb::template Rebind_TDS<TDS2>::Other Vb2;
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typedef Triangulation_vertex_base_2<GT, Vb2> Other;
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};
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private:
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Point _p;
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public:
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Triangulation_vertex_base_2 () : Vb(), _p() {}
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Triangulation_vertex_base_2(const Point & p) : Vb(), _p(p) {}
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Triangulation_vertex_base_2(const Point & p, Face_handle f)
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: Vb(f), _p(p) {}
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Triangulation_vertex_base_2(Face_handle f) : Vb(f) {}
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void set_point(const Point & p) { _p = p; }
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const Point& point() const { return _p; }
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// the non const version of point() is undocument
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// but needed to make the point iterator works
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// using Lutz projection scheme
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Point& point() { return _p; }
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//the following trivial is_valid to allow
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// the user of derived face base classes
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// to add their own purpose checking
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bool is_valid(bool /* verbose */ = false, int /* level */ = 0) const
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{return true;}
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#ifndef CGAL_NO_DEPRECATED_CODE
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size_type degree(); //should be const
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Vertex_circulator incident_vertices()
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{return Vertex_circulator(handle());}
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Vertex_circulator incident_vertices( Face_handle f)
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{return Vertex_circulator(handle(),f);}
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Face_circulator incident_faces()
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{ return Face_circulator(handle()) ;}
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Face_circulator incident_faces( Face_handle f)
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{ return Face_circulator(handle(), f);}
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Edge_circulator incident_edges()
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{ return Edge_circulator(handle());}
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Edge_circulator incident_edges( Face_handle f)
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{ return Edge_circulator(handle(), f);}
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Vertex_handle handle();
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#endif // CGAL_NO_DEPRECATED_CODE
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};
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template < class GT, class Vb >
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std::istream&
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operator>>(std::istream &is, Triangulation_vertex_base_2<GT, Vb> &v)
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// non combinatorial information. Default = point
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{
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return is >> static_cast<Vb&>(v) >> v.point();
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}
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template < class GT, class Vb >
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std::ostream&
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operator<<(std::ostream &os, const Triangulation_vertex_base_2<GT, Vb> &v)
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// non combinatorial information. Default = point
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{
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return os << static_cast<const Vb&>(v) << v.point();
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}
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#ifndef CGAL_NO_DEPRECATED_CODE
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template <class GT, class Vb>
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typename Triangulation_vertex_base_2 <GT, Vb>::size_type
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Triangulation_vertex_base_2 <GT, Vb>::
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degree() //const
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{
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int count = 0;
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Vertex_circulator vc = incident_vertices(), done(vc);
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if ( ! vc.is_empty()) {
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do {
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count += 1;
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} while (++vc != done);
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}
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return count;
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}
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template <class GT, class Vb>
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typename Triangulation_vertex_base_2<GT, Vb>::Vertex_handle
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Triangulation_vertex_base_2 <GT, Vb> ::
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handle()
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{
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Face_handle fh = this->face();
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for(int i = 0 ; i < 3 ; ++i){
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if ( &*fh->vertex(i) == this) return fh->vertex(i);
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}
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return Vertex_handle();
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}
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#endif
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} //namespace CGAL
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#endif //CGAL_TRIANGULATION_VERTEX_BASE_2_H
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