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[Philipp Moeller <>]

mysmax 
<>
 writes:

> Hello check this snippet
>
>   // Finite edges indices.
>   for( typename Triangulation_3<GT, TDS>::Finite_edges_iterator
>         eit = T.finite_edges_begin(); eit != T.finite_edges_end(); ++eit) {
>       gv << 2
>          << V[(*eit).first->vertex((*eit).second)]
>          << V[(*eit).first->vertex((*eit).third)]
>          << "\n"; // without color.
>       // << 4 << drand48() << drand48() << drand48() << 1.0; // random
> color.
>   }
>
> how to render this output in opengl?.

If `V` is a map of indices to Vertex_handles and you want to draw lines
something like:

glBegin(GL_LINES);
  Point_3 p1 = V[...]->point();
  Point_3 p2 = V[...]->point();
  glVertex3d(p1.x(), p1.y(), p1.z());
  glVertex3d(p2.x(), p2.y(), p2.z());
glEnd();

should do it and should be reasonably fast if your triangulation is not
too large, although this approach is very naive.

-- 
Philipp Moeller
GeometryFactory