[Gmsh] information

[David Colignon]

Hi Donato,

if you load an iges geometry in Gmsh and then save it as a .geo Gmsh geometry file, only points, lines and plane 
surfaces will be saved, because nurbs surfaces are not implemented in the native Gmsh language.

Regards,

Dave

--
David Colignon, Ph.D.
Collaborateur Logistique du F.R.S.-FNRS
CÉCI - Consortium des Équipements de Calcul Intensif
ACE - Applied & Computational Electromagnetics
Institut Montefiore B28
Université de Liège
4000 Liège - BELGIQUE
Tél: +32 (0)4 366 37 32
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On 16/04/10 0:51, Geordie McBain wrote:
> 2010/4/15 donato.stante at tiscali.it<donato.stante at tiscali.it>:
>> Hello, I use File/Merge from menu but when I save the Gmsh geometry I
>> have same problem with the mesh because not all surfaces are created.
>> Thanks for the reply.
>> Can you help me? Can I send the file?
>
> Hello.  I recommend you send it to the Gmsh list, as I've never
> actually created a Gmsh geometry or mesh from IGES or STEP myself,
> I've only seen others do it; I do know it's possible though, as I've
> seen the resulting three-dimensional meshes successfully used in
> FreeFem++ finite element calculations.
>
> I sounds as if your original IGES geometry is deficient.  Can you
> define the missing geometrical entities in Gmsh based on whatever it
> is that the IGES does provide?
>
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