CGAL users discussion list

["Sebastien Loriot (GeometryFactory)" <>]

Did you modify the triangulation since the time the cell handle was saved?

Sebastien.

On 06/06/2017 02:47 PM, Thomas Holzmann wrote:
> I want to reopen this thread again, as I still have the same issue.
>
> Yes, my triangulation is valid and has dimension 3.
>
> Does someone has another hint?
>
> Thomas
>
>
> On 04/07/2017 05:58 PM, Sylvain Pion wrote:
> > Did you check that triangulation_.dimension() == 3 ?
> >
> > 2017-04-07 9:27 GMT+02:00 Andreas Fabri
> > <
> > <mailto:>>:
> >
> >
> >     Did you check that the triangulation as a whole is valid?
> >
> >     andreas
> >
> >
> >     On 07/04/2017 09:03, Thomas Holzmann wrote:
> >
> >         Hi,
> >
> >         I get a weird segmentation fault and I really don't know why.
> >         Here is my
> >         code:
> >
> >         if (triangulation_.is_valid(currCell))
> >         {
> >             for (int k = 0; k < 4; k++)
> >                 cellsToProcess.push(currCell->neighbor(k)); // when
> >         accessing
> >         neighbor -> segfault
> >         }
> >
> >         where triangulation_ is a
> >         
> > CGAL::Triangulation_3<CGAL::Exact_predicates_exact_constructions_kernel,
> >         Tds_info>. and currCell is a Cell_handle.
> >
> >         I'm checking the validity of currCell, so the neighbors should
> >         exist,
> >         right?
> >
> >         Does someone have an idea why that could happen or how to
> >         check the
> >         validity of the neighbors  before accessing it in another way?
> >
> >         Thomas
> >
> >
> >
> >     --
> >     Andreas Fabri, PhD
> >     Chief Officer, GeometryFactory
> >     Editor, The CGAL Project
> >
> >     phone: +33.492.954.912 <tel:%2B33.492.954.912>    skype:
> >     andreas.fabri
> >
> >
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> --
> ====================================================
> Dipl.-Ing. Thomas Holzmann
> TU Graz - Institut fuer Maschinelles Sehen und Darstellen
> Graz University of Technology - Institute for Computer Graphics & Vision
> Inffeldgasse 16/II, 8010 Graz, Austria
>
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