mirror of https://github.com/CGAL/cgal
87 lines
3.3 KiB
C++
87 lines
3.3 KiB
C++
// ============================================================================
|
|
//
|
|
// Copyright (c) 1997 The CGAL Consortium
|
|
//
|
|
// This software and related documentation is part of an INTERNAL release
|
|
// of the Computational Geometry Algorithms Library (CGAL). It is not
|
|
// intended for general use.
|
|
//
|
|
// ----------------------------------------------------------------------------
|
|
//
|
|
// release : $CGAL_Revision: $
|
|
// release_date : $CGAL_Date: $
|
|
//
|
|
// file : include/CGAL/HalfedgeDS_halfedge_min_base.h
|
|
// package : HalfedgeDS 3.3 (27 Sep 2000)
|
|
// chapter : Halfedge Data Structures
|
|
//
|
|
// revision : $Revision$
|
|
// revision_date : $Date$
|
|
//
|
|
// author(s) : Lutz Kettner <kettner@mpi-sb.mpg.de>
|
|
// maintainer :
|
|
// coordinator : MPI Saarbruecken
|
|
//
|
|
// Halfedge Data Structure Minimal Base Class for Vertices.
|
|
// ============================================================================
|
|
|
|
#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 //
|