[Gmsh] bug in bdf export?
Christophe Geuzaine
cgeuzaine at ulg.ac.be
Fri Sep 21 17:17:43 CEST 2007
Hi Claus - Indeed: it looks like on your machine Gmsh wrote "E-00"
instead of "E-04" in the BDF file (if I fix the 4 occurrences in the
file by hand the mesh looks OK).
Here's something strange: on my machine if I open the .msh file and
re-save it as BDF, everything is fine.
Maybe the bug depends on the machine/operating system? (I'm on Mac;
looking at the screenshots you seem to be on Windows.) We use
"sprintf(str, "%.2E", val);" to print the numbers in "small field"
format, since they must take exactly 8 characters. Maybe sprintf works
slightly differently on Windows?
Do you observe the same problem if you choose the "long field" BDF format?
Thanks for the report!
Christophe
cLAUS wEYAND wrote:
> I use gmsh to visualize finite element structures of bevel gears. The
> gmsh file is generated as a .msh type 2 format file (attached file
> tooth3dg.msh, screen shot "gear.jpg"). The mesh looks good after opening
> the file with gmsh version 2.0.8. I exported the mesh using the Save as
> menu using the bdf filter to a file labeled gear.bdf. After opening the
> file gear.bdf with gmsh a few points of the FE mesh are out of place
> (see screen shot "gear saved as bdf and opened with gmsh.jpg").
> Thanks for your help.
>
> Claus
>
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Prof. Christophe Geuzaine
University of Liege, Electrical Engineering and Computer Science
http://www.montefiore.ulg.ac.be/~geuzaine