CGAL users discussion list

[Bo Schwarzstein <>]

Yes, thanks, finally I use these codes to export the mesh as a wavefront obj file and import it into blender

        ofstream fout(OutfilePath);

        map<C2t3::Vertex_handle, int> V;
        int i = 0;

        for(Tr::Finite_vertices_iterator vi = tr.finite_vertices_begin(); vi != tr.finite_vertices_end(); vi++)
        {
            fout<<fixed<<"v "<<vi->point()<<endl;
            V[vi] = i++;
        }

        for( Tr::Finite_facets_iterator fi = tr.finite_facets_begin(); fi != tr.finite_facets_end(); fi++ )
        {
            if( c2t3.is_in_complex(*fi) )
            {
                fout<<"f";
                for(int j=0; j<4; ++j)
                {
                    if( (*fi).second != j )
                    {
                        fout<<" "<<V[(*fi).first->vertex(j)]+1;
                    }
                }
                fout<<endl;
            }
        }

2009/6/2 Ashwin Nanjappa <>

On Sun, May 31, 2009 at 10:58, Bo Schwarzstein
<> wrote:
>
> And what's the mean of "number_of_facets" and "number_of_finite_facets", how
> should I import this mesh to OpenGL with proper index array ?

For most conventional display, you should be using only the
finite_facets for showing it using OpenGL. The facets includes those
connected to one or more infinite vertices.

~ash
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