CGAL users discussion list

[Andreas Fabri <>]

Hello,

Besides the question concerning the kernel you have chosen,
did you use the static, incremental, or dynamic version.

If the data set is not huge, please send me data set and
testprogram so that we can reproduce and fix it.

best regards,

andreas


Matthieu Chavent wrote:
> I resolved my problem with compiling with -DCGAL_CH_NO_POSTCONDITIONS
> and now it's work well but I would like to know how this problem appears
> and if I disable this option it possible to have concave objects?
>
> Thank you in advance!
>
> Matthieu Chavent a écrit :
> > Hello cgal users!
> >
> > I performed a convex hull of a set a 3D points. I know that the set of 
> > points define a convex volume. I use the function CGAL::convex_hull_3 
> > on my points list. I  obtain a Polyhedron_3 in almost cases but one 
> > time a have the error message:
> >
> > CGAL error: postcondition violation!
> > Expr: is_strongly_convex_3(P, traits)
> > File: /home/Chavent_Matthieu/CGAL-3.2.1/include/CGAL/convex_hull_3.h
> > Line: 468
> > Aborted (core dumped)
> >
> > It is very strange because I know that the sets of points that form 
> > the Polyhedron define a convex volume: So, I would like to know if 
> > somebody had the same problem and How can I get through this error.
> >
> > Thank you in advance!
>
>
>
> ---------------------------
>
> Matthieu Chavent
> LORIA
> PhD student
>
> tel: ++33(0)3-54-95-86-05
>
> ---------------------------