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["Sebastien Loriot (GeometryFactory)" <>]

Martin Baeker wrote:
> Dear experts,
>
> when I create a Nef-Polyhedron, I can easily iterate over all its
> (half)edges like this: (The Nef_polyhedron is called Cube here)
>
>   for(Nef_polyhedron::Halfedge_const_iterator
>   e = Cube.halfedges_begin(),
>   end = Cube.halfedges_end();
>       e != end; ++e)
>   {
>     // do stuff
>   }
>
> Is there a way to get at the facet(s) that are bordered by e? 

I guess the function incident_sface described here:
http://www.cgal.org/Manual/last/doc_html/cgal_manual/Nef_3_ref/Class_Nef_polyhedron_3-Traits---Halfedge.html#Function_SFace_const_handle_incident_sface69_const;
should do the job.

hth

S.

> The
> spherical-map concept allows to adress SFaces, but these seem not to
> be identical to the facets of the polyhedron - I have to admit that
> I'm a bit confused by the spherical-map concept...
>
> Thanks a lot for any help,
>
> Martin.
>
>
>                    Priv.-Doz. Dr. Martin Bäker
>                    Institut für Werkstoffe
>                    Technische Universität Braunschweig
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>                    38106 Braunschweig
>                    Germany
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