It’s in the GUI. You calculate your mesh and then click on Mesh > Optimize3D. There is certainly a command for scripts but I don’t know it by heart. See the documentation…
Matthias Von: Julien Derr [mailto:[email protected]] Gesendet: Donnerstag, 7. Mai 2015 16:21 An: Zenker, Dr. Matthias Betreff: Re: [Gmsh] problem with gmsh to Freefem mesh? Hi Mathias, and thanks to the answer, How do you use this option exactly ? Julien On Thu, May 7, 2015 at 10:37 AM, Zenker, Dr. Matthias <[email protected]<mailto:[email protected]>> wrote: Hi, I didn’t run your example, but how about Mesh > Optimize3D? This has solved problems with malformed meshes for me in the past. HTH, Matthias Von: Julien Derr [mailto:[email protected]<mailto:[email protected]>] Gesendet: Mittwoch, 6. Mai 2015 14:54 An: Geordie McBain Cc: [email protected]<mailto:[email protected]> Betreff: Re: [Gmsh] problem with gmsh to Freefem mesh? Hi Georgie, here is a minimum example: if you run the script.sh you would get the error, thanks a lot! Julien On Wed, May 6, 2015 at 2:19 AM, Geordie McBain <[email protected]<mailto:[email protected]>> wrote: 2015-05-06 2:20 GMT+10:00 Julien Derr <[email protected]<mailto:[email protected]>>: > Hi again, I am back again with the same error message! > > but this time I checked that I didn't have twice the same points. He re is > the problem: > > What happen is that I have 3 points perfectly aligned, and it seems gmsh is > making a flat triangle with them. Hello. I wouldn't have thought that collinearity would present a problem, necessarily, depending on how the points are used to define surfaces. I wasn't sure that I'd come across this before so created a simple degenerate quadrilateral, as attached; Gmsh & FreeFem++ seemed happy enough. Or do you mean that the three points are coincident rather than merely collinear? Do you have an exemplary .geo file that you could share? I agree that having to reduce the characteristic length to avoid the problem would be inconvenient and undesirable, but I'm hopeful that there's another way. _____________________________________________________________________ ERBE Elektromedizin GmbH Firmensitz: 72072 Tuebingen Geschaeftsfuehrer: Christian O. Erbe, Reiner Thede Registergericht: Stuttgart HRB 380137 _____________________________________________________________________ ERBE Elektromedizin GmbH Firmensitz: 72072 Tuebingen Geschaeftsfuehrer: Christian O. Erbe, Reiner Thede Registergericht: Stuttgart HRB 380137
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