CGAL users discussion list

["Sebastien Loriot (GeometryFactory)" <>]

Benjamin McWhorter wrote:
> Hello,
>
> I am having the following problem when joining together two simple and valid 
> Nef Polyhedron.  I was hoping somebody could help me understand why the 
> resulting Nef is not simple.  I have attached the original .obj files and the 
> .OFF files.
>
> After the join, the resulting Nef is not simple.  If I try to convert that 
> Nef to a polyhedron, I get this error:

The intersection of your models is a segment. The result of the union is
is two volumes joint by an edge, which makes it not simple.


Sebastien.


> > CGAL::Polyhedron_incremental_builder_3<HDS>::
> > lookup_hole(): input error: at vertex 1 a closed surface already exists and 
> > facet 14 is nonetheless adjacent.
> >             The closed cycle of facets is: 5 1 2.
>
> I am sorry if this is a simple question, but I have not been able to come to 
> any conclusions.
>
> Thanks,
> Ben.
>
>
>
>
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