[Gmsh] pesky extrusion command
Christophe Geuzaine
Christophe.Geuzaine at ulg.ac.be
Thu Aug 30 10:04:31 CEST 2001
Hello Matthias,
I've just tested your file. It seems to be a Linux specific issue (it
works with my version, compiled in debug mode, but it crashes with the
optimized build). I will recompile the Linux version without any fancy
optimization, and put it on the web site today.
Christophe
Matthias K Gobbert wrote:
>
> Hi,
>
> I am sorry to bother you with this pesky extrusion problem, but it may
> still have a problem.
>
> The version of vianew.geo included sets up points, lines, and surfaces
> (numbered 26, 28, 30, ..., 42) only for z = 0, then tries to use Extrusion
> downwards and upwards to create the volume. Everything is Ruled,
> Transfinite, and Recombine'd, as far as I can tell. Then Extrusion is used
> with Recombine. But gmsh 1.24 has a fatal error on surface 64, which is
> the one obtained by extrusion from 42.
>
> (I should say that I also have a triangular/tetragonal version of this
> geometry, i.e., same surfaces and extrusions, but without Ruled and
> Recombine. That one does not create a fatal error from gmsh, but there is
> a warning that it cannot swap triangles properly.)
>
> I admit that I cannot guarantee that it is not my mistake somehow in the
> way I use gmsh-commands. I am still not always sure about, whether order
> and orientation of things matter in 3-D. So, I would really appreciate
> feedback on whether there are any problems with my usage of gmsh-commands.
>
> Thanks for making the software available and all your efforts,
>
> Matthias
>
> Matthias K. Gobbert Office: Math/Psyc 416
> Department of Mathematics and Statistics Hours: TTh 03:00-03:50
> University of Maryland, Baltimore County Phone: (410) 455-2404
> 1000 Hilltop Circle Fax: (410) 455-1066
> Baltimore, MD 21250 gobbert at math.umbc.edu
> U.S.A. http://www.math.umbc.edu/~gobbert
>
> ------------------------------------------------------------------------
> Name: vianew.geo
> vianew.geo Type: Plain Text (TEXT/PLAIN)
> Encoding: BASE64
>
> Name: gmsh-errors
> gmsh-errors Type: Plain Text (TEXT/PLAIN)
> Encoding: BASE64
--
Christophe Geuzaine
Tel: 32 (0) 4 366 37 10 http://geuz.org
Fax: 32 (0) 4 366 29 10 mailto:Christophe.Geuzaine at ulg.ac.be