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SPAR/AIModule/BWTA/vendors/CGAL/CGAL/HalfedgeDS_vertex_base.h
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00001 // Copyright (c) 1997  Utrecht University (The Netherlands),
00002 // ETH Zurich (Switzerland), Freie Universitaet Berlin (Germany),
00003 // INRIA Sophia-Antipolis (France), Martin-Luther-University Halle-Wittenberg
00004 // (Germany), Max-Planck-Institute Saarbruecken (Germany), RISC Linz (Austria),
00005 // and Tel-Aviv University (Israel).  All rights reserved.
00006 //
00007 // This file is part of CGAL (www.cgal.org); you can redistribute it and/or
00008 // modify it under the terms of the GNU Lesser General Public License as
00009 // published by the Free Software Foundation; version 2.1 of the License.
00010 // See the file LICENSE.LGPL distributed with CGAL.
00011 //
00012 // Licensees holding a valid commercial license may use this file in
00013 // accordance with the commercial license agreement provided with the software.
00014 //
00015 // This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
00016 // WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
00017 //
00018 // $URL: svn+ssh://scm.gforge.inria.fr/svn/cgal/branches/CGAL-3.5-branch/HalfedgeDS/include/CGAL/HalfedgeDS_vertex_base.h $
00019 // $Id: HalfedgeDS_vertex_base.h 35794 2007-01-24 18:00:30Z spion $
00020 // 
00021 //
00022 // Author(s)     : Lutz Kettner  <kettner@mpi-sb.mpg.de>
00023 
00024 #ifndef CGAL_HALFEDGEDS_VERTEX_BASE_H
00025 #define CGAL_HALFEDGEDS_VERTEX_BASE_H 1
00026 
00027 #include <CGAL/basic.h>
00028 
00029 CGAL_BEGIN_NAMESPACE
00030 
00031 // We use Tag_false to indicate that no point type is provided.
00032 
00033 template < class Refs, class T = Tag_true, class P = Tag_false>
00034 class HalfedgeDS_vertex_base;
00035 
00036 template < class Refs >
00037 class HalfedgeDS_vertex_base< Refs, Tag_false, Tag_false> {
00038 public:
00039     typedef Refs                                 HalfedgeDS;
00040     typedef HalfedgeDS_vertex_base< Refs, Tag_false, Tag_false>  Base;
00041     typedef Tag_false                            Supports_vertex_halfedge;
00042     typedef Tag_false                            Supports_vertex_point;
00043     typedef typename Refs::Vertex_handle         Vertex_handle;
00044     typedef typename Refs::Vertex_const_handle   Vertex_const_handle;
00045     typedef typename Refs::Halfedge_handle       Halfedge_handle;
00046     typedef typename Refs::Halfedge_const_handle Halfedge_const_handle;
00047     typedef typename Refs::Face_handle           Face_handle;
00048     typedef typename Refs::Face_const_handle     Face_const_handle;
00049     typedef typename Refs::Halfedge              Halfedge;
00050     typedef typename Refs::Face                  Face;
00051 };
00052 
00053 template < class Refs>
00054 class HalfedgeDS_vertex_base< Refs, Tag_true, Tag_false> {
00055 public:
00056     typedef Refs                                 HalfedgeDS;
00057     typedef HalfedgeDS_vertex_base< Refs, Tag_true, Tag_false>   Base;
00058     typedef Tag_true                             Supports_vertex_halfedge;
00059     typedef Tag_false                            Supports_vertex_point;
00060     typedef typename Refs::Vertex_handle         Vertex_handle;
00061     typedef typename Refs::Vertex_const_handle   Vertex_const_handle;
00062     typedef typename Refs::Halfedge_handle       Halfedge_handle;
00063     typedef typename Refs::Halfedge_const_handle Halfedge_const_handle;
00064     typedef typename Refs::Face_handle           Face_handle;
00065     typedef typename Refs::Face_const_handle     Face_const_handle;
00066     typedef typename Refs::Halfedge              Halfedge;
00067     typedef typename Refs::Face                  Face;
00068 private:
00069     Halfedge_handle hdg;
00070 public:
00071     Halfedge_handle       halfedge()                        { return hdg; }
00072     Halfedge_const_handle halfedge() const                  { return hdg; }
00073     void                  set_halfedge( Halfedge_handle h)  { hdg = h; }
00074 };
00075 
00076 template < class Refs, class P>
00077 class HalfedgeDS_vertex_base< Refs, Tag_false, P> {
00078 public:
00079     typedef Refs                                 HalfedgeDS;
00080     typedef HalfedgeDS_vertex_base< Refs, Tag_false, P>     Base;
00081     typedef Tag_false                            Supports_vertex_halfedge;
00082     typedef Tag_true                             Supports_vertex_point;
00083     typedef P                                    Point;
00084     typedef typename Refs::Vertex_handle         Vertex_handle;
00085     typedef typename Refs::Vertex_const_handle   Vertex_const_handle;
00086     typedef typename Refs::Halfedge_handle       Halfedge_handle;
00087     typedef typename Refs::Halfedge_const_handle Halfedge_const_handle;
00088     typedef typename Refs::Face_handle           Face_handle;
00089     typedef typename Refs::Face_const_handle     Face_const_handle;
00090     typedef typename Refs::Halfedge              Halfedge;
00091     typedef typename Refs::Face                  Face;
00092 private:
00093     Point   p;
00094 public:
00095     HalfedgeDS_vertex_base() {}
00096     HalfedgeDS_vertex_base( const Point& pp) : p(pp) {}
00097     Point&                point()                           { return p; }
00098     const Point&          point() const                     { return p; }
00099 };
00100 
00101 template < class Refs, class P>
00102 class HalfedgeDS_vertex_base< Refs, Tag_true, P> {
00103 public:
00104     typedef Refs                                 HalfedgeDS;
00105     typedef HalfedgeDS_vertex_base< Refs, Tag_true, P>      Base;
00106     typedef Tag_true                             Supports_vertex_halfedge;
00107     typedef Tag_true                             Supports_vertex_point;
00108     typedef P                                    Point;
00109     typedef typename Refs::Vertex_handle         Vertex_handle;
00110     typedef typename Refs::Vertex_const_handle   Vertex_const_handle;
00111     typedef typename Refs::Halfedge_handle       Halfedge_handle;
00112     typedef typename Refs::Halfedge_const_handle Halfedge_const_handle;
00113     typedef typename Refs::Face_handle           Face_handle;
00114     typedef typename Refs::Face_const_handle     Face_const_handle;
00115     typedef typename Refs::Halfedge              Halfedge;
00116     typedef typename Refs::Face                  Face;
00117 private:
00118     Halfedge_handle hdg;
00119     Point           p;
00120 public:
00121     HalfedgeDS_vertex_base() {}
00122     HalfedgeDS_vertex_base( const Point& pp) : p(pp) {}
00123     Halfedge_handle       halfedge()                        { return hdg; }
00124     Halfedge_const_handle halfedge() const                  { return hdg; }
00125     void                  set_halfedge( Halfedge_handle h)  { hdg = h; }
00126     Point&                point()                           { return p; }
00127     const Point&          point() const                     { return p; }
00128 };
00129 
00130 CGAL_END_NAMESPACE
00131 
00132 #endif // CGAL_HALFEDGEDS_VERTEX_BASE_H //
00133 // EOF //
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