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cgal/Mesh_3/include/CGAL/IO/File_medit.h
T
Jane Tournois 9f67ee99c7 Revert "sort facets and tetrahedra with indices, to get always the same file for the same mesh"
This reverts commit 2ab45a8514.
It is not needed anymore because cells and vertices come in deterministic order
2014-03-18 16:45:23 +01:00

909 lines
24 KiB
C++

// Copyright (c) 2004-2006 INRIA Sophia-Antipolis (France).
// Copyright (c) 2009 INRIA Sophia-Antipolis (France).
// 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) : Laurent RINEAU, Stephane Tayeb
#ifndef CGAL_IO_FILE_MEDIT_H
#define CGAL_IO_FILE_MEDIT_H
#include <CGAL/Mesh_3/config.h>
#include <iostream>
#include <map>
#include <set>
#include <vector>
#include <string>
#include <CGAL/utility.h>
namespace CGAL {
namespace Mesh_3 {
//-------------------------------------------------------
// Needed in verbose mode
//-------------------------------------------------------
#ifdef CGAL_MESH_3_IO_VERBOSE
template<class T>
inline
std::ostream&
operator<<(std::ostream &os, const std::pair<T,T>& pair)
{
return os << "<" << pair.first << "," << pair.second << ">";
}
#endif
// -----------------------------------
// Rebin_cell_pmap
// -----------------------------------
template <typename C3T3>
class Rebind_cell_pmap
{
typedef typename C3T3::Subdomain_index Subdomain_index;
typedef std::map<Subdomain_index,int> Subdomain_map;
typedef typename C3T3::Cell_handle Cell_handle;
typedef unsigned int size_type;
public:
Rebind_cell_pmap(const C3T3& c3t3)
: r_c3t3_(c3t3)
{
typedef typename C3T3::Cells_in_complex_iterator Cell_iterator;
int first_index = 0;
int index_counter = first_index + 1;
for( Cell_iterator cell_it = r_c3t3_.cells_in_complex_begin();
cell_it != r_c3t3_.cells_in_complex_end();
++cell_it)
{
// Add subdomain index in internal map if needed
if ( subdomain_map_.end() ==
subdomain_map_.find(r_c3t3_.subdomain_index(cell_it)) )
{
subdomain_map_.insert(std::make_pair(r_c3t3_.subdomain_index(cell_it),
index_counter));
++index_counter;
}
}
// Rebind indices in alphanumeric order
index_counter = first_index + 1;
for ( typename Subdomain_map::iterator mit = subdomain_map_.begin() ;
mit != subdomain_map_.end() ;
++mit )
{
mit->second = index_counter++;
}
#ifdef CGAL_MESH_3_IO_VERBOSE
std::cerr << "Nb of subdomains: " << subdomain_map_.size() << "\n";
std::cerr << "Subdomain mapping:\n\t" ;
typedef typename Subdomain_map::iterator Subdomain_map_iterator;
for ( Subdomain_map_iterator sub_it = subdomain_map_.begin() ;
sub_it != subdomain_map_.end() ;
++sub_it )
{
std::cerr << "[" << (*sub_it).first << ":" << (*sub_it).second << "] ";
}
std::cerr << "\n";
#endif
}
int subdomain_index(const Cell_handle& ch) const
{
return subdomain_index(r_c3t3_.subdomain_index(ch));
}
size_type subdomain_number() const
{
return subdomain_map_.size();
}
private:
int subdomain_index(const Subdomain_index& index) const
{
typedef typename Subdomain_map::const_iterator Smi;
Smi elt_it = subdomain_map_.find(index);
if ( elt_it != subdomain_map_.end() )
return elt_it->second;
else
return -1;
}
private:
const C3T3& r_c3t3_;
Subdomain_map subdomain_map_;
};
// Accessor
template <typename C3T3>
int
get(const Rebind_cell_pmap<C3T3>& cmap,
const typename C3T3::Cell_handle& ch)
{
return cmap.subdomain_index(ch);
}
template <typename C3T3>
unsigned int get_size(const Rebind_cell_pmap<C3T3>& cmap)
{
return cmap.subdomain_number();
}
// -----------------------------------
// No_rebind_cell_pmap
// -----------------------------------
template <typename C3T3>
class No_rebind_cell_pmap
{
typedef typename C3T3::Subdomain_index Subdomain_index;
typedef typename C3T3::Cell_handle Cell_handle;
typedef unsigned int size_type;
public:
No_rebind_cell_pmap(const C3T3& c3t3)
: r_c3t3_(c3t3) {}
int subdomain_index(const Cell_handle& ch) const
{
return static_cast<int>(r_c3t3_.subdomain_index(ch));
}
size_type subdomain_number() const
{
typedef typename C3T3::Cells_in_complex_iterator Cell_iterator;
std::set<Subdomain_index> subdomain_set;
for( Cell_iterator cell_it = r_c3t3_.cells_in_complex_begin();
cell_it != r_c3t3_.cells_in_complex_end();
++cell_it)
{
// Add subdomain index in set if new
if ( subdomain_set.end() == subdomain_set.find(subdomain_index(cell_it)) )
{
subdomain_set.insert(subdomain_index(cell_it));
}
}
return subdomain_set.size();
}
private:
const C3T3& r_c3t3_;
};
// Accessor
template <typename C3T3>
int
get(const No_rebind_cell_pmap<C3T3>& cmap,
const typename C3T3::Cell_handle& ch)
{
return cmap.subdomain_index(ch);
}
// -----------------------------------
// Rebind_facet_pmap
// -----------------------------------
template <typename C3T3, typename Cell_pmap>
class Rebind_facet_pmap
{
typedef typename C3T3::Surface_patch_index Surface_patch_index;
typedef std::map<Surface_patch_index,int> Surface_map;
typedef typename C3T3::Facet Facet;
typedef unsigned int size_type;
public:
Rebind_facet_pmap(const C3T3& c3t3, const Cell_pmap& cell_pmap)
: r_c3t3_(c3t3)
, cell_pmap_(cell_pmap)
{
typedef typename C3T3::Facets_in_complex_iterator Facet_iterator;
int first_index = 1;
int index_counter = first_index;
for( Facet_iterator facet_it = r_c3t3_.facets_in_complex_begin();
facet_it != r_c3t3_.facets_in_complex_end();
++facet_it)
{
// Add surface index in internal map if needed
if ( surface_map_.end() ==
surface_map_.find(c3t3.surface_patch_index((*facet_it).first,
(*facet_it).second)) )
{
surface_map_.insert(std::make_pair(r_c3t3_.surface_patch_index(*facet_it),
index_counter));
++index_counter;
}
}
// Find cell_pmap_ unused indices
typedef typename C3T3::Cells_in_complex_iterator Cell_iterator;
std::set<int> cell_label_set;
for( Cell_iterator cell_it = r_c3t3_.cells_in_complex_begin();
cell_it != r_c3t3_.cells_in_complex_end();
++cell_it)
{
// Add subdomain index in set if new
if ( cell_label_set.end()
== cell_label_set.find(get(cell_pmap_,cell_it)) )
{
cell_label_set.insert(get(cell_pmap_,cell_it));
}
}
// Rebind indices
index_counter = get_first_unused_label(cell_label_set,first_index);
for ( typename Surface_map::iterator mit = surface_map_.begin() ;
mit != surface_map_.end() ;
++mit )
{
mit->second = index_counter++;
index_counter = get_first_unused_label(cell_label_set,index_counter);
}
#ifdef CGAL_MESH_3_IO_VERBOSE
std::cerr << "Nb of surface patches: " << surface_map_.size() << "\n";
std::cerr << "Surface mapping:\n\t" ;
typedef typename Surface_map::iterator Surface_map_iterator;
for ( Surface_map_iterator surf_it = surface_map_.begin() ;
surf_it != surface_map_.end() ;
++surf_it )
{
std::cerr << "[" << (*surf_it).first
<< ":" << (*surf_it).second << "] ";
}
std::cerr << "\n";
#endif
}
int surface_index(const Facet& f) const
{
return surface_index(r_c3t3_.surface_patch_index(f));
}
size_type surface_number() const
{
return surface_map_.size();
}
private:
int surface_index(const Surface_patch_index& index) const
{
typedef typename Surface_map::const_iterator Smi;
Smi elt_it = surface_map_.find(index);
if ( elt_it != surface_map_.end() )
return elt_it->second;
else
return -1;
}
int get_first_unused_label(const std::set<int>& label_set,
int search_start) const
{
while ( label_set.end() != label_set.find(search_start) )
++search_start;
return search_start;
}
private:
const C3T3& r_c3t3_;
const Cell_pmap& cell_pmap_;
Surface_map surface_map_;
};
// Accessors
template <typename C3T3, typename Cell_pmap>
int
get(const Rebind_facet_pmap<C3T3,Cell_pmap>& fmap,
const typename C3T3::Facet& f)
{
return fmap.surface_index(f);
}
template <typename C3T3, typename Cell_pmap>
unsigned int
get_size(const Rebind_facet_pmap<C3T3,Cell_pmap>& fmap,
const typename C3T3::Facet& f)
{
return fmap.surface_number(f);
}
// -----------------------------------
// No_rebind_facet_pmap
// -----------------------------------
template <typename C3T3, typename Cell_pmap>
class No_rebind_facet_pmap
{
typedef typename C3T3::Surface_patch_index Surface_patch_index;
typedef typename C3T3::Facet Facet;
typedef unsigned int size_type;
public:
No_rebind_facet_pmap(const C3T3& c3t3, const Cell_pmap& /*cell_pmap*/)
: r_c3t3_(c3t3) {}
int surface_index(const Facet& f) const
{
return static_cast<int>(r_c3t3_.surface_patch_index(f));
}
private:
const C3T3& r_c3t3_;
};
// Accessors
template <typename C3T3, typename Cell_pmap>
int
get(const No_rebind_facet_pmap<C3T3,Cell_pmap>& fmap,
const typename C3T3::Facet& f)
{
return fmap.surface_index(f);
}
// -----------------------------------
// No_rebind_facet_pmap_first
// -----------------------------------
template <typename C3T3, typename Cell_pmap>
class No_rebind_facet_pmap_first
{
typedef typename C3T3::Surface_patch_index Surface_patch_index;
typedef typename C3T3::Facet Facet;
typedef unsigned int size_type;
public:
No_rebind_facet_pmap_first(const C3T3& c3t3, const Cell_pmap& /*cell_pmap*/)
: r_c3t3_(c3t3) {}
int surface_index(const Facet& f) const
{
return static_cast<int>(r_c3t3_.surface_patch_index(f).first);
}
private:
const C3T3& r_c3t3_;
};
// Accessors
template <typename C3T3, typename Cell_pmap>
int
get(const No_rebind_facet_pmap_first<C3T3,Cell_pmap>& fmap,
const typename C3T3::Facet& f)
{
return fmap.surface_index(f);
}
// -----------------------------------
// No_rebind_facet_pmap_second
// -----------------------------------
template <typename C3T3, typename Cell_pmap>
class No_rebind_facet_pmap_second
{
typedef typename C3T3::Surface_patch_index Surface_patch_index;
typedef typename C3T3::Facet Facet;
typedef unsigned int size_type;
public:
No_rebind_facet_pmap_second(const C3T3& c3t3, const Cell_pmap& /*cell_pmap*/)
: r_c3t3_(c3t3) {}
int surface_index(const Facet& f) const
{
return static_cast<int>(r_c3t3_.surface_patch_index(f).second);
}
private:
const C3T3& r_c3t3_;
};
// Accessors
template <typename C3T3, typename Cell_pmap>
int
get(const No_rebind_facet_pmap_second<C3T3,Cell_pmap>& fmap,
const typename C3T3::Facet& f)
{
return fmap.surface_index(f);
}
// -----------------------------------
// No_patch_facet_pmap_first
// -----------------------------------
template <typename C3T3, typename Cell_pmap>
class No_patch_facet_pmap_first
{
typedef typename C3T3::Surface_patch_index Surface_patch_index;
typedef typename C3T3::Facet Facet;
typedef typename C3T3::Cell_handle Cell_handle;
public:
No_patch_facet_pmap_first(const C3T3&, const Cell_pmap& cell_pmap)
: cell_pmap_(cell_pmap) { }
int surface_index(const Facet& f) const
{
Cell_handle c1 = f.first;
Cell_handle c2 = c1->neighbor(f.second);
int label1 = get(cell_pmap_,c1);
int label2 = get(cell_pmap_,c2);
if ( 0 == label1 || -1 == label1 )
label1 = label2;
if ( 0 == label2 || -1 == label2 )
label2 = label1;
return (std::min)(label1,label2);
}
private:
const Cell_pmap& cell_pmap_;
};
// Accessors
template <typename C3T3, typename Cell_pmap>
int
get(const No_patch_facet_pmap_first<C3T3,Cell_pmap>& fmap,
const typename C3T3::Facet& f)
{
return fmap.surface_index(f);
}
// -----------------------------------
// No_patch_facet_pmap_second
// -----------------------------------
template <typename C3T3, typename Cell_pmap>
class No_patch_facet_pmap_second
{
typedef typename C3T3::Surface_patch_index Surface_patch_index;
typedef typename C3T3::Facet Facet;
typedef typename C3T3::Cell_handle Cell_handle;
public:
No_patch_facet_pmap_second(const C3T3&, const Cell_pmap& cell_pmap)
: cell_pmap_(cell_pmap) { }
int surface_index(const Facet& f) const
{
Cell_handle c1 = f.first;
Cell_handle c2 = c1->neighbor(f.second);
int label1 = get(cell_pmap_,c1);
int label2 = get(cell_pmap_,c2);
if ( 0 == label1 || -1 == label1 )
label1 = label2;
if ( 0 == label2 || -1 == label2 )
label2 = label1;
return (std::max)(label1,label2);
}
private:
const Cell_pmap& cell_pmap_;
};
// Accessors
template <typename C3T3, typename Cell_pmap>
int
get(const No_patch_facet_pmap_second<C3T3,Cell_pmap>& fmap,
const typename C3T3::Facet& f)
{
return fmap.surface_index(f);
}
// -----------------------------------
// Default_vertex_index_pmap
// -----------------------------------
template <typename C3T3, typename Cell_pmap, typename Facet_pmap>
class Default_vertex_pmap
{
typedef typename C3T3::Surface_patch_index Surface_patch_index;
typedef typename C3T3::Subdomain_index Subdomain_index;
typedef typename C3T3::Index Index;
typedef typename C3T3::Vertex_handle Vertex_handle;
typedef typename C3T3::Cell_handle Cell_handle;
typedef typename C3T3::Facet Facet;
public:
Default_vertex_pmap(const C3T3& c3t3,
const Cell_pmap& c_pmap,
const Facet_pmap& f_pmap)
: c_pmap_(c_pmap)
, f_pmap_(f_pmap)
, r_c3t3_(c3t3)
, edge_index_(0) {}
int index(const Vertex_handle& vh) const
{
switch ( r_c3t3_.in_dimension(vh) )
{
case 2:
{
// Check if each incident surface facet of vh has the same surface index
typename std::vector<Facet> facets;
r_c3t3_.triangulation().finite_incident_facets(
vh, std::back_inserter(facets));
if ( facets.begin() == facets.end() )
return -1;
// Look for the first surface facet
typename std::vector<Facet>::iterator it_facet = facets.begin();
while ( ! r_c3t3_.is_in_complex(*it_facet) )
{
if ( ++it_facet == facets.end() )
return -1;
}
Surface_patch_index facet_index = r_c3t3_.surface_patch_index(*it_facet);
Facet facet = *it_facet;
++it_facet;
for( ; it_facet != facets.end() ; ++it_facet)
{
// If another index is found, return value for edge vertice
if ( r_c3t3_.is_in_complex(*it_facet)
&& facet_index != r_c3t3_.surface_patch_index(*it_facet) )
return edge_index_;
}
return get(f_pmap_,facet);
}
break;
case 3:
{
// Returns value of any incident cell
typename std::vector<Cell_handle> cells;
r_c3t3_.triangulation().finite_incident_cells(
vh,std::back_inserter(cells));
if ( cells.begin() != cells.end() )
return get(c_pmap_, *cells.begin());
else
return -1;
}
break;
default:
// should not happen
return -1;
break;
}
}
private:
const Cell_pmap& c_pmap_;
const Facet_pmap& f_pmap_;
const C3T3& r_c3t3_;
const unsigned int edge_index_;
};
template <typename C3T3, typename Cell_pmap, typename Facet_pmap>
int
get(const Default_vertex_pmap<C3T3,Cell_pmap,Facet_pmap>& vmap,
const typename C3T3::Vertex_handle& vh)
{
return vmap.index(vh);
}
// -----------------------------------
// Null pmap
// -----------------------------------
template <typename C3T3, typename Cell_pmap>
struct Null_facet_pmap
{
Null_facet_pmap(const C3T3&, const Cell_pmap&) {}
};
template <typename C3T3, typename Cell_pmap>
int get(const Null_facet_pmap<C3T3,Cell_pmap>&,
const typename C3T3::Facet&)
{
return 0;
}
template <typename C3T3, typename Cell_pmap, typename Facet_pmap>
struct Null_vertex_pmap
{
Null_vertex_pmap(const C3T3&, const Cell_pmap&, const Facet_pmap&) {}
};
template <typename C3T3, typename Cell_pmap, typename Facet_pmap>
int get(const Null_vertex_pmap<C3T3, Cell_pmap, Facet_pmap>&,
const typename C3T3::Vertex_handle&)
{
return 0;
}
// -----------------------------------
// Generator
// -----------------------------------
template <typename C3T3, bool rebind, bool no_patch>
struct Medit_pmap_generator{};
template <typename C3T3>
struct Medit_pmap_generator<C3T3, true, false>
{
typedef Rebind_cell_pmap<C3T3> Cell_pmap;
typedef Rebind_facet_pmap<C3T3, Cell_pmap> Facet_pmap;
typedef Null_facet_pmap<C3T3, Cell_pmap> Facet_pmap_twice;
typedef Default_vertex_pmap<C3T3, Cell_pmap, Facet_pmap> Vertex_pmap;
bool print_twice() { return false; }
};
template <typename C3T3>
struct Medit_pmap_generator<C3T3, true, true>
{
typedef Rebind_cell_pmap<C3T3> Cell_pmap;
typedef No_patch_facet_pmap_first<C3T3,Cell_pmap> Facet_pmap;
typedef No_patch_facet_pmap_second<C3T3,Cell_pmap> Facet_pmap_twice;
typedef Default_vertex_pmap<C3T3, Cell_pmap, Facet_pmap> Vertex_pmap;
bool print_twice() { return true; }
};
template <typename C3T3>
struct Medit_pmap_generator<C3T3, false, true>
{
typedef No_rebind_cell_pmap<C3T3> Cell_pmap;
typedef No_patch_facet_pmap_first<C3T3,Cell_pmap> Facet_pmap;
typedef No_patch_facet_pmap_second<C3T3,Cell_pmap> Facet_pmap_twice;
typedef Default_vertex_pmap<C3T3, Cell_pmap, Facet_pmap> Vertex_pmap;
bool print_twice() { return true; }
};
template <typename C3T3>
struct Medit_pmap_generator<C3T3, false, false>
{
typedef No_rebind_cell_pmap<C3T3> Cell_pmap;
typedef Rebind_facet_pmap<C3T3,Cell_pmap> Facet_pmap;
typedef Null_facet_pmap<C3T3, Cell_pmap> Facet_pmap_twice;
typedef Null_vertex_pmap<C3T3, Cell_pmap, Facet_pmap> Vertex_pmap;
bool print_twice() { return false; }
};
//-------------------------------------------------------
// IO functions
//-------------------------------------------------------
template <class C3T3, bool rebind, bool no_patch>
void
output_to_medit(std::ostream& os,
const C3T3& c3t3)
{
#ifdef CGAL_MESH_3_IO_VERBOSE
std::cerr << "Output to medit:\n";
#endif
typedef Medit_pmap_generator<C3T3,rebind,no_patch> Generator;
typedef typename Generator::Cell_pmap Cell_pmap;
typedef typename Generator::Facet_pmap Facet_pmap;
typedef typename Generator::Facet_pmap_twice Facet_pmap_twice;
typedef typename Generator::Vertex_pmap Vertex_pmap;
Cell_pmap cell_pmap(c3t3);
Facet_pmap facet_pmap(c3t3,cell_pmap);
Facet_pmap_twice facet_pmap_twice(c3t3,cell_pmap);
Vertex_pmap vertex_pmap(c3t3,cell_pmap,facet_pmap);
output_to_medit(os,
c3t3,
vertex_pmap,
facet_pmap,
cell_pmap,
facet_pmap_twice,
Generator().print_twice());
#ifdef CGAL_MESH_3_IO_VERBOSE
std::cerr << "done.\n";
#endif
}
template <class C3T3,
class Vertex_index_property_map,
class Facet_index_property_map,
class Facet_index_property_map_twice,
class Cell_index_property_map>
void
output_to_medit(std::ostream& os,
const C3T3& c3t3,
const Vertex_index_property_map& vertex_pmap,
const Facet_index_property_map& facet_pmap,
const Cell_index_property_map& cell_pmap,
const Facet_index_property_map_twice& facet_twice_pmap = Facet_index_property_map_twice(),
const bool print_each_facet_twice = false)
{
typedef typename C3T3::Triangulation Tr;
typedef typename C3T3::Facets_in_complex_iterator Facet_iterator;
typedef typename C3T3::Cells_in_complex_iterator Cell_iterator;
typedef typename Tr::Finite_vertices_iterator Finite_vertices_iterator;
typedef typename Tr::Vertex_handle Vertex_handle;
typedef typename Tr::Point Point_3;
const Tr& tr = c3t3.triangulation();
//-------------------------------------------------------
// File output
//-------------------------------------------------------
//-------------------------------------------------------
// Header
//-------------------------------------------------------
os << std::setprecision(17);
os << "MeshVersionFormatted 1" << std::endl
<< "Dimension 3" << std::endl;
//-------------------------------------------------------
// Vertices
//-------------------------------------------------------
os << "Vertices" << std::endl
<< tr.number_of_vertices() << std::endl;
std::map<Vertex_handle, int> V;
int inum = 1;
for( Finite_vertices_iterator vit = tr.finite_vertices_begin();
vit != tr.finite_vertices_end();
++vit)
{
V[vit] = inum++;
Point_3 p = vit->point();
os << CGAL::to_double(p.x()) << " "
<< CGAL::to_double(p.y()) << " "
<< CGAL::to_double(p.z()) << " "
<< get(vertex_pmap, vit)
<< std::endl;
}
//-------------------------------------------------------
// Facets
//-------------------------------------------------------
typename C3T3::size_type number_of_triangles = c3t3.number_of_facets_in_complex();
if ( print_each_facet_twice )
number_of_triangles += number_of_triangles;
os << "Triangles" << std::endl
<< number_of_triangles << std::endl;
for( Facet_iterator fit = c3t3.facets_in_complex_begin();
fit != c3t3.facets_in_complex_end();
++fit)
{
for (int i=0; i<4; i++)
{
if (i != fit->second)
{
const Vertex_handle& vh = (*fit).first->vertex(i);
os << V[vh] << " ";
}
}
os << get(facet_pmap, *fit) << std::endl;
// Print triangle again if needed
if ( print_each_facet_twice )
{
for (int i=0; i<4; i++)
{
if (i != fit->second)
{
const Vertex_handle& vh = (*fit).first->vertex(i);
os << V[vh] << " ";
}
}
os << get(facet_twice_pmap, *fit) << std::endl;
}
}
//-------------------------------------------------------
// Tetrahedra
//-------------------------------------------------------
os << "Tetrahedra" << std::endl
<< c3t3.number_of_cells_in_complex() << std::endl;
for( Cell_iterator cit = c3t3.cells_in_complex_begin() ;
cit != c3t3.cells_in_complex_end() ;
++cit )
{
for (int i=0; i<4; i++)
os << V[cit->vertex(i)] << " ";
os << get(cell_pmap, cit) << std::endl;
}
//-------------------------------------------------------
// End
//-------------------------------------------------------
os << "End" << std::endl;
} // end output_to_medit(...)
} // end namespace Mesh_3
/**
* @brief outputs mesh to medit format
* @param os the stream
* @param c3t3 the mesh
* @param rebind if true, labels of cells are rebinded into [1..nb_of_labels]
* @param show_patches if true, patches are labeled with different labels than
* cells. If false, each surface facet is written twice, using label of
* each adjacent cell.
*/
template <class C3T3>
void
output_to_medit(std::ostream& os,
const C3T3& c3t3,
bool rebind = false,
bool show_patches = false)
{
if ( rebind )
{
if ( show_patches )
Mesh_3::output_to_medit<C3T3,true,false>(os,c3t3);
else
Mesh_3::output_to_medit<C3T3,true,true>(os,c3t3);
}
else
{
if ( show_patches )
Mesh_3::output_to_medit<C3T3,false,false>(os,c3t3);
else
Mesh_3::output_to_medit<C3T3,false,true>(os,c3t3);
}
}
} // end namespace CGAL
#endif // CGAL_IO_FILE_MEDIT_H