mirror of https://github.com/CGAL/cgal
71 lines
2.5 KiB
C++
71 lines
2.5 KiB
C++
// Copyright (c) 1997 ETH Zurich (Switzerland).
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// All rights reserved.
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//
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// This file is part of CGAL (www.cgal.org).
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// You can redistribute it and/or modify it under the terms of the GNU
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// General Public License as published by the Free Software Foundation,
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// either version 3 of the License, or (at your option) any later version.
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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_IO_GENERIC_PRINT_POLYHEDRON_H
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#define CGAL_IO_GENERIC_PRINT_POLYHEDRON_H 1
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#include <CGAL/basic.h>
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#include <CGAL/Inverse_index.h>
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#include <iostream>
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namespace CGAL {
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template <class Polyhedron, class Writer>
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void
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generic_print_polyhedron( std::ostream& out,
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const Polyhedron& P,
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Writer& writer) {
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// writes P to `out' in the format provided by `writer'.
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typedef typename Polyhedron::Vertex_const_iterator VCI;
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typedef typename Polyhedron::Facet_const_iterator FCI;
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typedef typename Polyhedron::Halfedge_around_facet_const_circulator HFCC;
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// Print header.
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writer.write_header( out,
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P.size_of_vertices(),
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P.size_of_halfedges(),
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P.size_of_facets());
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for( VCI vi = P.vertices_begin(); vi != P.vertices_end(); ++vi) {
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writer.write_vertex( ::CGAL::to_double( vi->point().x()),
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::CGAL::to_double( vi->point().y()),
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::CGAL::to_double( vi->point().z()));
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}
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typedef Inverse_index< VCI> Index;
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Index index( P.vertices_begin(), P.vertices_end());
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writer.write_facet_header();
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for( FCI fi = P.facets_begin(); fi != P.facets_end(); ++fi) {
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HFCC hc = fi->facet_begin();
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HFCC hc_end = hc;
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std::size_t n = circulator_size( hc);
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CGAL_assertion( n >= 3);
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writer.write_facet_begin( n);
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do {
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writer.write_facet_vertex_index( index[ VCI(hc->vertex())]);
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++hc;
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} while( hc != hc_end);
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writer.write_facet_end();
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}
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writer.write_footer();
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}
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} //namespace CGAL
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#endif // CGAL_IO_GENERIC_PRINT_POLYHEDRON_H //
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// EOF //
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