[Gmsh] Strange problem with very simple geometry

[Christophe Geuzaine]

Michal Hajek wrote:
> Hello, 
> 
> I experience a problem with gmsh 2.0. 
> 
> If I try to mesh a simple 2D object, gmsh works well up to some
> characteristic length factor. With smaller length factor, meshing fails. 
> 
> E.g. the following command succeed:
> gmsh  -m -2 -o "ctverce.msh" ctverce.geo > 02.log 2>&1
> with characteristic length m=0.2;
> 
> but the same command (except .log file name)
> gmsh  -m -2 -o "ctverce.msh" ctverce.geo > 01.log 2>&1
> 
> fails if I replace characteristic length in .geo file for m=0.1;
> 
> Please see the attached .geo and .log files...
> 
> 
> Can anyone please explain this bahaviour? Is that because something is
> wrong with my geometry? Or is it because the meshing algorithm is not
> perfect yet?  

Not perfect yet ;-)

It works over here on my Mac. You can try changing the random 
perturbation a bit (try e.g. "-rand 1.e-7").





> 
> Best regards
> Michal
> 
> 
> ------------------------------------------------------------------------
> 
> _______________________________________________
> gmsh mailing list
> gmsh at geuz.org
> http://www.geuz.org/mailman/listinfo/gmsh


-- 
Prof. Christophe Geuzaine
University of Liege, Electrical Engineering and Computer Science
http://www.montefiore.ulg.ac.be/~geuzaine