[Gmsh] Segmentation fault when writing 2D order 2 mesh

[Christophe Geuzaine]

On 11/03/11 13:08, Karin&NiKo wrote:
> Yes they are.
> BTW, using incomplete second order elements is OK.
>

Hmm... In the version of MED we have here (MED 2.3.4) this is what's 
defined in med.h:

typedef enum {MED_POINT1=1, MED_SEG2=102, MED_SEG3=103, MED_TRIA3=203,
	      MED_QUAD4=204, MED_TRIA6=206,MED_QUAD8=208,MED_TETRA4=304,
	      MED_PYRA5=305, MED_PENTA6=306, MED_HEXA8=308, MED_TETRA10=310,
	      MED_PYRA13=313, MED_PENTA15=315, MED_HEXA20=320,
	      MED_POLYGONE=400, MED_POLYEDRE=500, MED_NONE=0} 
med_geometrie_element;

Should we switch to a newer version?


> Nicolas
>
> 2011/3/11 Christophe Geuzaine <cgeuzaine at ulg.ac.be
> <mailto:cgeuzaine at ulg.ac.be>>
>
>     On 11/03/11 09:47, Karin&NiKo wrote:
>
>         Dear Gmsh-ers,
>
>         I would like to report a bug that appears with gmsh 2.5.0 and
>         also in
>         the nightly build.
>         When trying to write the mesh generated by the attached script, a
>         segmentation fault occurs :
>
>         /opt/gmsh-2.5.1-svn-Linux/bin/gmsh -2 -format med -o carre-Q2.mmed
>         carre.geo
>
>         Please notice that :
>         - no problem occurs when using a first order mesh
>         - the unv format for the 2nd order mesh can be written but, when
>         read
>         back in gmsh, the mesh is wrong
>
>
>     Hi Nico - Indeed, it looks like 9-node quads I/O is not implemented
>     for MED (nor UNV). I don't remember why I did not implement this...
>     Are 9-node quads supported by MED?
>
>
>         Nicolas
>
>
>
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>
>
>
>     --
>     Prof. Christophe Geuzaine
>     University of Liege, Electrical Engineering and Computer Science
>     http://www.montefiore.ulg.ac.be/~geuzaine
>     <http://www.montefiore.ulg.ac.be/%7Egeuzaine>
>
>


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