mirror of https://github.com/CGAL/cgal
72 lines
1.9 KiB
C++
72 lines
1.9 KiB
C++
// Copyright (c) 2015 GeometryFactory
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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; either version 3 of the License,
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// 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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// Author(s) : Laurent Rineau and Sebastien Loriot
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#ifndef CGAL_IO_OFF_READER_H
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#define CGAL_IO_OFF_READER_H
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#include <CGAL/IO/File_scanner_OFF.h>
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#include <vector>
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#include <iostream>
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namespace CGAL{
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template <class Point_3, class Polygon_3>
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bool
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read_OFF( std::istream& in,
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std::vector< Point_3 >& points,
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std::vector< Polygon_3 >& polygons,
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bool /* verbose */ = false)
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{
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CGAL::File_scanner_OFF scanner(in);
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points.resize(scanner.size_of_vertices());
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polygons.resize(scanner.size_of_facets());
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for (std::size_t i = 0; i < scanner.size_of_vertices(); ++i) {
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double x, y, z, w;
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scanner.scan_vertex( x, y, z, w);
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CGAL_assertion(w!=0);
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points[i] = Point_3(x/w, y/w, z/w);
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scanner.skip_to_next_vertex( i);
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}
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if(!in)
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return false;
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for (std::size_t i = 0; i < scanner.size_of_facets(); ++i) {
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std::size_t no;
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scanner.scan_facet( no, i);
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polygons[i].resize(no);
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for(std::size_t j = 0; j < no; ++j) {
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std::size_t id;
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scanner.scan_facet_vertex_index(id, i);
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if(id < scanner.size_of_vertices())
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{
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polygons[i][j] = id;
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}
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else
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return false;
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}
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}
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return (bool) in;
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}
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} // namespace CGAL
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#endif // CGAL_IO_OFF_READER_H
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