[Gmsh] igs to geo
Fabian Braennstroem
f.braennstroem at gmx.de
Mon Jul 21 20:18:38 CEST 2008
Hi Christophe,
* On 20 Jul 2008 * Christophe Geuzaine wrote:
> Fabian Braennstroem wrote:
>> Hi,
>>
>> I have a small problem, when importing an igs (exported by
>> ICEM) geometry. Actually the import works well,
>> but as soon as I save it as a geo file, I get a lot more
>> points then in the igs file. I attach to snapshots. Do I
>> do anything wrong?
>
> Not really: the geo export is pretty much there for debugging purposes
> only. The reason you get more points is probably that the straight lines
> in the iges files are represented e.g. by splines instead of line
> segments.
>
> Our goal is to mesh iges/step files directly, without converting them
> into geo format first...
Did not know that; sounds nice.
>
>> The view is an extraction of a simple diffuser, which I
>> want to mesh with hexa elements.
>>
>
> ...but indeed, for this you would have to convert the iges file into geo
> format, since we haven't (yet) interfaced the structured meshing commands
> with general CAD files.
Sounds even better.
>
> Why is having more control points a problem?
It is actually not a problem, but the geo file gets
completely messy and I am not able to do the definition of
the mesh by hand!?
Thanks!
Fabian
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