/usr/include/CGAL/Polyhedron_copy_3.h is in libcgal-dev 4.2-5ubuntu1.
This file is owned by root:root, with mode 0o644.
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// 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
// General Public License as published by the Free Software Foundation,
// either version 3 of the License, or (at your option) any later version.
//
// 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_POLYHEDRON_COPY_3_H
#define CGAL_POLYHEDRON_COPY_3_H 1
#include <CGAL/basic.h>
#include <CGAL/Modifier_base.h>
#include <CGAL/Inverse_index.h>
#include <CGAL/Polyhedron_incremental_builder_3.h>
namespace CGAL {
template < class Poly, class HDS >
class Polyhedron_copy_3 : public Modifier_base<HDS> {
protected:
const Poly& source;
public:
typedef Poly Polyhedron;
typedef HDS Halfedge_data_structure;
Polyhedron_copy_3( const Polyhedron& poly) : source(poly) {}
// creates the copy modifier and stores the `source' in its
// internal state.
void operator()( HDS& target);
// copies the `source' known from creation time into the `target'.
// Postcondition: the `target' is a valid polyhedral surface.
};
template < class Poly, class HDS>
void
Polyhedron_copy_3<Poly,HDS>:: operator()( HDS& target) {
typedef typename Poly::Vertex_const_iterator Vertex_const_iterator;
typedef typename Poly::Facet_const_iterator Facet_const_iterator;
typedef Inverse_index< Vertex_const_iterator> Index;
typedef typename HDS::Vertex::Point Point;
target.clear();
Polyhedron_incremental_builder_3<HDS> B( target);
B.begin_surface( source.size_of_vertices(),
source.size_of_facets(),
source.size_of_halfedges());
for ( Vertex_const_iterator vi = source.vertices_begin();
vi != source.vertices_end();
++vi) {
B.add_vertex( Point( vi->point()));
}
Index index( source.vertices_begin(), source.vertices_end());
for ( Facet_const_iterator fi = source.facets_begin();
fi != source.facets_end();
++fi) {
B.begin_facet();
typedef typename Poly::Halfedge_around_facet_const_circulator
Halfedge_around_facet_const_circulator;
Halfedge_around_facet_const_circulator hc = fi->facet_begin();
Halfedge_around_facet_const_circulator hc_end = hc;
CGAL_assertion( hc != NULL);
do {
B.add_vertex_to_facet( index[ hc->vertex()]);
++hc;
} while( hc != hc_end);
B.end_facet();
}
B.end_surface();
target.normalize_border();
}
} //namespace CGAL
#endif // CGAL_POLYHEDRON_COPY_3_H //
// EOF //
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