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["Sebastien Loriot (GeometryFactory)" <>]

#include <CGAL/Polyhedron_3.h>
#include <CGAL/IO/Polyhedron_iostream.h>
#include <CGAL/boost/graph/graph_traits_Polyhedron_3.h>
#include <CGAL/Exact_predicates_inexact_constructions_kernel.h>

#include <fstream>
#include <iostream>

#include <boost/foreach.hpp>

typedef CGAL::Exact_predicates_inexact_constructions_kernel K;
typedef CGAL::Polyhedron_3<K> Polyhedron;
typedef boost::graph_traits<Polyhedron> GT;
typedef GT::vertex_descriptor vertex_descriptor;
typedef GT::face_descriptor face_descriptor;
typedef GT::halfedge_descriptor halfedge_descriptor;


int main(int, char** argv)
{
  Polyhedron P;
  std::ifstream input(argv[1]);
  input >> P;

  std::map<vertex_descriptor,int> v2i;
  int i=0;
  BOOST_FOREACH(vertex_descriptor v, vertices(P)){
    std::cout << v->point() << "\n";
    v2i.insert(std::make_pair(v,i++));
  }

  BOOST_FOREACH(face_descriptor f, faces(P))
  {
    BOOST_FOREACH(vertex_descriptor v,
                  vertices_around_face(halfedge(f,P),P))
      std::cout << v2i[v] << " ";
    std::cout << "\n";
  }
}



On 04/21/2016 11:17 AM, Zhe Cao wrote:
> Hi,
>
> Thank you for your reply. Basically I am using >> operator to initialise the
> polyhedron instance from a .off file. Here is the code:
>
> std::ifstream stream(path);
> stream >> mySolver.m_poly;
>
> I am not familiar with polyhedron type. So in this way, can I get the type
> you mentioned with indices in each vertex, or I need to create my polyhedron
> class and override some functions.
>
> Zhe.
>
>
>
> --
> View this message in context: 
> http://cgal-discuss.949826.n4.nabble.com/Extract-face-data-from-polyhedron-tp4661854p4661856.html
> Sent from the cgal-discuss mailing list archive at Nabble.com.