CGAL users discussion list

[Roberto Lam <>]

Hi Laurent, my mind was blocked! the answer was very obvius.
I just started with cgal a cople of weeks before and the problem was,
is, that I
didnt do in the right way. I shoud read the manual study all classes details..
Best regards
rlam

2009/9/25 Laurent Rineau (GeometryFactory)
<>:
> Le vendredi 25 septembre 2009 19:40:12, 
> 
>  a écrit :
>> Hi,
>> I would like to have a reference to a vertex described by a vertex iterator
>> some thing like this:
>>
>> for ( Vertex_iterator v_ = tmp.vertices_begin();
>>                   v_ != tmp.vertices_end(); ++v_){
>>       Vertex &vert=v_ ;
>>       // more code
>>
>> }
>> with
>> typedef CGAL::Simple_cartesian<double> Kernel;
>> typedef CGAL::Polyhedron_3<Kernel>     Polyhedron;
>> typedef Polyhedron::Vertex  Vertex;
>
> If v_ is a Vertex_iterator, then *v_ is a Vertex. So the answer to your
> question is:
>
>  Vertex &vert = *v_;
>
> Why do you want to use a reference to a Vertex? I have been using CGAL for 
> ten
> years, and I do not remember that I had once needed a reference to a Vertex.
> Usually, one use handles instead (or iterators, directly).
>
> --
> Laurent Rineau, PhD
> Release Manager of the CGAL Project
> http://www.cgal.org/
> R&D Engineer at GeometryFactory
> http://www.geometryfactory.com/
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