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// Copyright (c) 1997
// Utrecht University (The Netherlands),
// ETH Zurich (Switzerland),
// INRIA Sophia-Antipolis (France),
// Max-Planck-Institute Saarbruecken (Germany),
// and Tel-Aviv University (Israel). 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 Lesser 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: svn+ssh://scm.gforge.inria.fr/svn/cgal/branches/next/Inventor/include/CGAL/IO/Alpha_shape_3_VRML_2_ostream.h $
// $Id: Alpha_shape_3_VRML_2_ostream.h 67093 2012-01-13 11:22:39Z lrineau $
//
// Author(s) : Andreas Fabri
#ifndef CGAL_ALPHA_SHAPE_3_VRML_2_OSTREAM_H
#define CGAL_ALPHA_SHAPE_3_VRML_2_OSTREAM_H
#include <CGAL/basic.h>
#include <CGAL/IO/VRML_2_ostream.h>
#ifdef CGAL_ALPHA_SHAPE_3_H
namespace CGAL {
template <class Dt >
VRML_2_ostream&
operator<<(VRML_2_ostream& os,
Alpha_shape_3<Dt> &as)
{
// Finite vertices coordinates.
Alpha_shape_3<Dt>::Alpha_shape_vertices_iterator Vlist_it,
Vlist_begin = as.alpha_shape_vertices_begin(),
Vlist_end = as.alpha_shape_vertices_end();
std::map<Alpha_shape_3<Dt>::Vertex_handle, int> V;
int number_of_vertex = 0;
for( Vlist_it = Vlist_begin; Vlist_it != Vlist_end; Vlist_it++) {
V[*Vlist_it] = number_of_vertex++;
}
typename Alpha_shape_3<Dt>::Alpha_shape_facets_iterator Flist_it,
Flist_begin = as.alpha_shape_facets_begin(),
Flist_end = as.alpha_shape_facets_end();
std::map<Alpha_shape_3<Dt>::Facet, int> F;
int number_of_facets = 0;
for( Flist_it = Flist_begin; Flist_it != Flist_end; Flist_it++) {
F[*Flist_it] = number_of_facets++;
}
const char *Indent = " ";
os << " Group {\n"
" children [\n"
" Shape {\n"
" appearance USE A1\n"
" geometry\n"
" IndexedFaceSet {\n"
" coord Coordinate {\n"
" point [ \n"
<< Indent << " ";
for( Vlist_it = Vlist_begin; Vlist_it != Vlist_end; Vlist_it++) {
os << CGAL::to_double((*Vlist_it)->point().x()) << " ";
os << CGAL::to_double((*Vlist_it)->point().y()) << " ";
os << CGAL::to_double((*Vlist_it)->point().z()) << ",\n" << Indent << " ";
}
os << "\n ]\n"
" } # coord\n"
" solid FALSE\n"
<< Indent << "coordIndex [\n";
// Finite facets indices.
for( Flist_it = Flist_begin; Flist_it != Flist_end; Flist_it++){
os << Indent << " ";
for (int i=0; i<4; i++)
if (i != (*Flist_it).second){
os << V[(*Flist_it).first->vertex(i)];
os << ", ";
}
if (Flist_it != Flist_end)
os << "-1,\n";
else
os << "-1 \n";
}
os << Indent << "]\n";
" } #IndexedFaceSet\n"
" } #Shape\n"
" ] #children\n"
" } #Group\n";
return os;
}
} //namespace CGAL
#endif // CGAL_ALPHA_SHAPE_3_H
#endif CGAL_ALPHA_SHAPE_3_VRML_2_OSTREAM_H
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