[Gmsh] import + meshing of step file

[jb.leydet]

Hi and thanks for the quick support!

Long story short: I was saving a .geo on my windows machine because I couldn't import (yet) step files on the linux machine.
I just compiled the nightly built on linux after installing OpenCascade and now everything works just fine, working directly on the step file as suggested.

Thanks again!
Jean-Baptiste


> Message du 15/10/10 07:38
> De : "Christophe Geuzaine" 
> A : "jb.leydet" 
> Copie à : gmsh at geuz.org
> Objet : Re: [Gmsh] import + meshing of step file
>
> 
> On 14/10/10 16:44, jb.leydet wrote:
> > Hello,
> >
> > I'm facing a problem with gmsh:
> >
> > I'm trying to import and mesh a step file. All surfaces seem to have meshed properly, but then I get an error while trying to mesh the volume.
> >
> > I attach the error text (featuring some weird "Info : Starting subloop 4 in Line Loop 4 (are you sure about this?)" messages... maybe that could be the source of the pb?).
> >
> 
> Hi Jean-Baptiste - don't export the .step into a .geo file! Just mesh 
> the .step directly.
> 
> Let me repeat again for the list: saving "unrolled geo" files is mainly 
> provided for debugging purposes. The .geo language is not as rich as the 
> underlying abstract CAD descriptions: you loose information when you 
> perform the .geo export.
> 
> Your model meshes nicely over here, but for some element sizes the 2D 
> mesh self-intersects. You need to fine-tune mesh sizes a bit by hand in 
> this case. Recent nigtly builds have also improved automatic 
> curvature-based mesh size calculation, so you can e.g. use
> 
> gmsh air-channel.stp -clcurv -clscale 0.2
> 
> 
> 
> 
> > I also attach the original step file and the final geo file.
> >
> > Thank you!
> > Jean-Baptiste
> >
> > PS: beside that issue, I've been using gmsh to pre-process a few CFD simulations and it's been very helpful!
> >
> > Une messagerie gratuite, garantie à vie et des services en plus, ça vous tente ?
> > Je crée ma boîte mail www.laposte.net
> >
> >
> >
> > _______________________________________________
> > gmsh mailing list
> > gmsh at geuz.org
> > http://www.geuz.org/mailman/listinfo/gmsh
> 
> 
> -- 
> Prof. Christophe Geuzaine
> University of Liege, Electrical Engineering and Computer Science
> http://www.montefiore.ulg.ac.be/~geuzaine
> 
> 

Une messagerie gratuite, garantie à vie et des services en plus, ça vous tente ?
Je crée ma boîte mail www.laposte.net