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[cgal-discuss] How to get the Cell_handle or Vertex_handle from the Finite_cells_iterator or Finite_vertices_iterator?


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  • From: 魏华祎 <>
  • To:
  • Subject: [cgal-discuss] How to get the Cell_handle or Vertex_handle from the Finite_cells_iterator or Finite_vertices_iterator?
  • Date: Fri, 22 Oct 2010 14:10:15 +0800
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Hi, everyone, 

I has a problem when I use CGAL 3.6.1 to produce a 3d mesh.

The following are the types I use:

// Types

  typedef CGAL::Mesh_triangulation_3<Mesh_domain>::type Tr;
  typedef CGAL::Mesh_complex_3_in_triangulation_3<Tr> C3T3;

  typedef typename C3T3::Triangulation  Tr;
  typedef typename Tr::Geom_traits      Gt;
 
  typedef typename Tr::Point            Point_3;
  typedef typename Tr::Cell_handle      Cell_handle;
  typedef typename Tr::Vertex_handle    Vertex_handle;
  typedef typename Tr::Edge             Edge;
  typedef typename Tr::Vertex           Vertex;

Then a for loop I use in my program:

  for(typename Tr::Finite_cells_iterator cit = tr_.finite_cells_begin();
      cit !=tr_.finite_cells_end();++cit)

  My question is how can I get a Cell_handle object  from cit. I have tried

      Cell_handle&  cell = *cit;

but it can't pass the compile. The same problem  happened when I use

  for(typename Tr::Finite_vertices_iterator vit = tr_.finite_vertices_begin();
      vit != tr_.finite_vertices_end();++vit)

     Vertex_handle & vertex = *vit;

Please help me, thanks very much.


Best wishes

Huayi

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