mirror of https://github.com/CGAL/cgal
151 lines
3.9 KiB
C++
151 lines
3.9 KiB
C++
// Copyright (c) 2003-2006 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); you may redistribute it under
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// the terms of the Q Public License version 1.0.
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// See the file LICENSE.QPL 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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// $Source:
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// $Revision: 1.1 $ $Date: 2005/12/12 16:20:58 $
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// $Name: $
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//
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// Author(s) : Steve Oudot, David Rey, Mariette Yvinec, Laurent Rineau, Andreas Fabri
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#ifndef CGAL_SURFACE_MESH_CELL_BASE_3_H
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#define CGAL_SURFACE_MESH_CELL_BASE_3_H
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#include <CGAL/Complex_2_in_triangulation_cell_base_3.h>
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namespace CGAL {
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template < class GT, class Cb=Complex_2_in_triangulation_cell_base_3<GT> >
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class Surface_mesh_cell_base_3 :
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public Cb {
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public:
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typedef Surface_mesh_cell_base_3 <GT, Cb> Self;
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template < class TDS3 >
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struct Rebind_TDS {
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typedef typename Cb::template Rebind_TDS<TDS3>::Other Cb3;
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typedef Surface_mesh_cell_base_3 <GT, Cb3> Other;
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};
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typedef typename GT::Point_3 Point;
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typedef typename Cb::Triangulation_data_structure Tds;
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typedef typename Tds::Vertex_handle Vertex_handle;
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typedef typename Tds::Cell_handle Cell_handle;
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private:
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// -- fields added to this class --
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Point tab_surface_center_facets [4];
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char c_visited; // the lower 4 bits for 'facet_visited',
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// the higher 4 bits for 'visits'
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public:
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// Constructors
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Surface_mesh_cell_base_3()
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: Cb(), c_visited(0)
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{}
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Surface_mesh_cell_base_3 (Vertex_handle v0,
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Vertex_handle v1,
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Vertex_handle v2,
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Vertex_handle v3)
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: Cb (v0, v1, v2, v3), c_visited(0)
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{}
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Surface_mesh_cell_base_3 (Vertex_handle v0,
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Vertex_handle v1,
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Vertex_handle v2,
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Vertex_handle v3,
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Cell_handle n0,
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Cell_handle n1,
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Cell_handle n2,
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Cell_handle n3)
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: Cb (v0, v1, v2, v3, n0, n1, n2, n3), c_visited(0)
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{}
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// Access functions
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// Facets
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bool is_facet_visited (const int facet) const {
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CGAL_assertion (facet>=0 && facet <4);
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return c_visited & (1 << facet);;
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}
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bool visited (const int facet) const {
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CGAL_assertion (facet>=0 && facet <4);
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return c_visited & (1 << (facet+4));;
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}
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const Point& get_facet_surface_center(const int facet) const {
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CGAL_assertion (facet>=0 && facet <4);
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return(tab_surface_center_facets[facet]);
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}
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// Setting functions
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// Facets
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void set_facet_visited (const int facet) {
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CGAL_assertion (facet>=0 && facet <4);
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c_visited |= (1 << facet);
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}
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void set_visited (const int facet) {
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CGAL_assertion (facet>=0 && facet <4);
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c_visited |= (1 << (4+facet));
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}
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void reset_visited (const int facet) {
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CGAL_assertion (facet>=0 && facet <4);
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c_visited &= (15 & ~(1 << facet));
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c_visited &= ((15 | (15<<4)) & ~(1 << (4+facet)));
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}
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void set_facet_surface_center(const int facet,
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const Point& p) {
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CGAL_assertion (facet>=0 && facet <4);
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tab_surface_center_facets[facet]=p;
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}
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}; // end Surface_mesh_cell_base_3
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template < class GT, class Cb >
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std::istream&
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operator>>(std::istream &is,
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Surface_mesh_cell_base_3<GT, Cb> &v)
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{
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return is >> static_cast<Cb&>(v);
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}
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template < class GT, class Cb >
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std::ostream&
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operator<<(std::ostream &os,
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const Surface_mesh_cell_base_3<GT, Cb> &v)
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{
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return os << static_cast<const Cb&>(v);
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}
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} // namespace CGAL
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#endif // CGAL_SURFACE_MESH_CELL_BASE_3_H
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