CGAL users discussion list

["Sebastien Loriot (GeometryFactory)" <>]

With the current code there is no entry in the API. However it should 
not be not hard to do it. Indeed, looking at the 
halfspace_intersection_with_constructions_3.h for example, you'll see
that when a new face is created in build_dual_polyhedron (which is 
building the dual of the dual, i.e. the final intersection) we iterate
over vertices of the convex hull of the dual (one vertex = one plane)
so we could add a property in the API to add that information.

Best regards,

Sebastien.

On 2/22/19 8:19 AM, Maarten Moesen wrote:
> Dear CGAL community,
>
>  From a large vector of planes (halfspaces), in which each plane has 
> some information attached, I’d like to create a convex polyhedron using
>
> CGAL::halfspace_intersection_3() and 
> halfspace_intersection_with_constructions_3().
>
> How can I efficiently identify in the resulting polyhedron which planes 
> where selected, so that I can efficiently retrieve the information 
> associated to each selected plane?
>
> Best regards,
>
> Maarten
>
> --
>
> Maarten Moesen, PHD
>
> Polymer Physicist Computational Modeling
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