mirror of https://github.com/CGAL/cgal
83 lines
3.4 KiB
C++
83 lines
3.4 KiB
C++
// Copyright (c) 1997 Utrecht University (The Netherlands),
|
|
// ETH Zurich (Switzerland), Freie Universitaet Berlin (Germany),
|
|
// INRIA Sophia-Antipolis (France), Martin-Luther-University Halle-Wittenberg
|
|
// (Germany), Max-Planck-Institute Saarbruecken (Germany), RISC Linz (Austria),
|
|
// and Tel-Aviv University (Israel). All rights reserved.
|
|
//
|
|
// This file is part of CGAL (www.cgal.org); you can redistribute it and/or
|
|
// modify it under the terms of the GNU Lesser General Public License as
|
|
// published by the Free Software Foundation; version 2.1 of the License.
|
|
// See the file LICENSE.LGPL 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.
|
|
//
|
|
// $URL$
|
|
// $Id$
|
|
//
|
|
//
|
|
// Author(s) : Lutz Kettner <kettner@mpi-sb.mpg.de>
|
|
|
|
#ifndef CGAL_HALFEDGEDS_HALFEDGE_MIN_BASE_H
|
|
#define CGAL_HALFEDGEDS_HALFEDGE_MIN_BASE_H 1
|
|
|
|
#ifndef CGAL_BASIC_H
|
|
#include <CGAL/basic.h>
|
|
#endif
|
|
|
|
CGAL_BEGIN_NAMESPACE
|
|
|
|
template < class Refs>
|
|
struct HalfedgeDS_halfedge_min_base_base {
|
|
// Base_base will be used to access set_opposite(), which is
|
|
// made private in the normal halfedge bases. Since halfedges
|
|
// come always in pairs, managed by the HDS, the set_opposite()
|
|
// member function is protected from the user.
|
|
typedef Refs HalfedgeDS;
|
|
typedef HalfedgeDS_halfedge_min_base_base<Refs> Base_base;
|
|
typedef Tag_false Supports_halfedge_prev;
|
|
typedef Tag_false Supports_halfedge_vertex;
|
|
typedef Tag_false Supports_halfedge_face;
|
|
typedef typename Refs::Vertex_handle Vertex_handle;
|
|
typedef typename Refs::Vertex_const_handle Vertex_const_handle;
|
|
typedef typename Refs::Halfedge_handle Halfedge_handle;
|
|
typedef typename Refs::Halfedge_const_handle Halfedge_const_handle;
|
|
typedef typename Refs::Face_handle Face_handle;
|
|
typedef typename Refs::Face_const_handle Face_const_handle;
|
|
typedef typename Refs::Vertex Vertex;
|
|
typedef typename Refs::Face Face;
|
|
private:
|
|
Halfedge_handle opp;
|
|
Halfedge_handle nxt;
|
|
public:
|
|
Halfedge_handle opposite() { return opp;}
|
|
Halfedge_const_handle opposite() const { return opp;}
|
|
void set_opposite( Halfedge_handle h) { opp = h;}
|
|
Halfedge_handle next() { return nxt;}
|
|
Halfedge_const_handle next() const { return nxt;}
|
|
void set_next( Halfedge_handle h) { nxt = h;}
|
|
|
|
bool is_border() const { return false;}
|
|
// is always false as long as faces are not supported.
|
|
};
|
|
|
|
template < class Refs>
|
|
class HalfedgeDS_halfedge_min_base
|
|
: public HalfedgeDS_halfedge_min_base_base< Refs>
|
|
{
|
|
public:
|
|
typedef typename Refs::Halfedge_handle Halfedge_handle;
|
|
typedef HalfedgeDS_halfedge_min_base<Refs> Base;
|
|
typedef HalfedgeDS_halfedge_min_base_base<Refs> Base_base;
|
|
private:
|
|
void set_opposite( Halfedge_handle h) { Base_base::set_opposite(h);}
|
|
};
|
|
|
|
CGAL_END_NAMESPACE
|
|
|
|
#endif // CGAL_HALFEDGEDS_HALFEDGE_MIN_BASE_H //
|
|
// EOF //
|