mirror of https://github.com/CGAL/cgal
162 lines
7.3 KiB
C++
162 lines
7.3 KiB
C++
// Copyright (c) 1997 Utrecht University (The Netherlands),
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// ETH Zurich (Switzerland), Freie Universitaet Berlin (Germany),
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// INRIA Sophia-Antipolis (France), Martin-Luther-University Halle-Wittenberg
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// (Germany), Max-Planck-Institute Saarbruecken (Germany), RISC Linz (Austria),
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// and Tel-Aviv University (Israel). All rights reserved.
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//
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// This file is part of CGAL (www.cgal.org); you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public License as
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// published by the Free Software Foundation; version 2.1 of the License.
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// See the file LICENSE.LGPL distributed with CGAL.
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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) : Lutz Kettner <kettner@mpi-sb.mpg.de>
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#ifndef CGAL_HALFEDGEDS_FACE_BASE_H
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#define CGAL_HALFEDGEDS_FACE_BASE_H 1
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#ifndef CGAL_BASIC_H
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#include <CGAL/basic.h>
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#endif
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CGAL_BEGIN_NAMESPACE
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// We use Tag_false to indicate that no plane type is provided.
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template < class Refs, class T = Tag_true, class Pln = Tag_false>
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class HalfedgeDS_face_base;
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template < class Refs >
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class HalfedgeDS_face_base< Refs, Tag_false, Tag_false> {
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public:
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typedef Refs HalfedgeDS;
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typedef HalfedgeDS_face_base< Refs, Tag_false, Tag_false> Base;
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typedef Tag_false Supports_face_halfedge;
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typedef typename Refs::Vertex_handle Vertex_handle;
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typedef typename Refs::Vertex_const_handle Vertex_const_handle;
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typedef typename Refs::Halfedge_handle Halfedge_handle;
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typedef typename Refs::Halfedge_const_handle Halfedge_const_handle;
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typedef typename Refs::Face_handle Face_handle;
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typedef typename Refs::Face_const_handle Face_const_handle;
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typedef typename Refs::Vertex Vertex;
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typedef typename Refs::Halfedge Halfedge;
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// Additional tags required by Polyhedron.
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typedef Tag_false Supports_face_plane;
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struct Plane_not_supported {};
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typedef Plane_not_supported Plane;
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// No longer required.
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// typedef Tag_false Supports_face_normal;
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};
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template < class Refs >
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class HalfedgeDS_face_base< Refs, Tag_true, Tag_false> {
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public:
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typedef Refs HalfedgeDS;
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typedef HalfedgeDS_face_base< Refs, Tag_true, Tag_false> Base;
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typedef Tag_true Supports_face_halfedge;
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typedef typename Refs::Vertex_handle Vertex_handle;
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typedef typename Refs::Vertex_const_handle Vertex_const_handle;
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typedef typename Refs::Halfedge_handle Halfedge_handle;
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typedef typename Refs::Halfedge_const_handle Halfedge_const_handle;
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typedef typename Refs::Face_handle Face_handle;
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typedef typename Refs::Face_const_handle Face_const_handle;
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typedef typename Refs::Vertex Vertex;
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typedef typename Refs::Halfedge Halfedge;
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// Additional tags required by Polyhedron.
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typedef Tag_false Supports_face_plane;
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struct Plane_not_supported {};
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typedef Plane_not_supported Plane;
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// No longer required.
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//typedef Tag_false Supports_face_normal;
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private:
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Halfedge_handle hdg;
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public:
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Halfedge_handle halfedge() { return hdg; }
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Halfedge_const_handle halfedge() const { return hdg; }
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void set_halfedge( Halfedge_handle h) { hdg = h; }
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};
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template < class Refs, class Pln >
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class HalfedgeDS_face_base< Refs, Tag_false, Pln> {
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public:
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typedef Refs HalfedgeDS;
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typedef HalfedgeDS_face_base< Refs, Tag_false, Pln> Base;
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typedef Tag_false Supports_face_halfedge;
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typedef typename Refs::Vertex_handle Vertex_handle;
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typedef typename Refs::Vertex_const_handle Vertex_const_handle;
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typedef typename Refs::Halfedge_handle Halfedge_handle;
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typedef typename Refs::Halfedge_const_handle Halfedge_const_handle;
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typedef typename Refs::Face_handle Face_handle;
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typedef typename Refs::Face_const_handle Face_const_handle;
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typedef typename Refs::Vertex Vertex;
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typedef typename Refs::Halfedge Halfedge;
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// Additional tags and types required by Polyhedron.
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typedef Tag_true Supports_face_plane;
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typedef Pln Plane;
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// No longer required.
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//typedef Tag_true Supports_face_normal;
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//typedef Trts Traits;
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//typedef typename Traits::Normal Normal;
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//typedef typename Traits::Plane Plane;
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private:
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Plane pln;
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public:
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HalfedgeDS_face_base() {}
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HalfedgeDS_face_base( const Plane& g) : pln(g) {}
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Plane& plane() { return pln; }
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const Plane& plane() const { return pln; }
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// No longer required.
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// Normal normal() const { return pln.orthogonal_vector();}
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};
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template < class Refs, class Pln >
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class HalfedgeDS_face_base< Refs, Tag_true, Pln> {
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public:
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typedef Refs HalfedgeDS;
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typedef HalfedgeDS_face_base< Refs, Tag_true, Pln> Base;
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typedef Tag_true Supports_face_halfedge;
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typedef typename Refs::Vertex_handle Vertex_handle;
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typedef typename Refs::Vertex_const_handle Vertex_const_handle;
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typedef typename Refs::Halfedge_handle Halfedge_handle;
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typedef typename Refs::Halfedge_const_handle Halfedge_const_handle;
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typedef typename Refs::Face_handle Face_handle;
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typedef typename Refs::Face_const_handle Face_const_handle;
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typedef typename Refs::Vertex Vertex;
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typedef typename Refs::Halfedge Halfedge;
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// Additional tags and types required by Polyhedron.
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typedef Tag_true Supports_face_plane;
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typedef Pln Plane;
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// No longer required.
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//typedef Tag_true Supports_face_normal;
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//typedef Trts Traits;
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//typedef typename Traits::Normal Normal;
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//typedef typename Traits::Plane Plane;
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private:
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Halfedge_handle hdg;
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Plane pln;
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public:
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HalfedgeDS_face_base() {}
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HalfedgeDS_face_base( const Plane& g) : pln(g) {}
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Halfedge_handle halfedge() { return hdg; }
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Halfedge_const_handle halfedge() const { return hdg; }
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void set_halfedge( Halfedge_handle h) { hdg = h; }
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Plane& plane() { return pln; }
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const Plane& plane() const { return pln; }
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// No longer required.
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//Normal normal() const { return pln.orthogonal_vector();}
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};
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CGAL_END_NAMESPACE
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#endif // CGAL_HALFEDGEDS_FACE_BASE_H //
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// EOF //
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