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<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">It’s in the GUI. You calculate your mesh and then click on Mesh > Optimize3D.
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">There is certainly a command for scripts but I don’t know it by heart. See the documentation…<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Matthias<o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">Von:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> Julien Derr [mailto:julien.derr@gmail.com]
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<b>Gesendet:</b> Donnerstag, 7. Mai 2015 16:21<br>
<b>An:</b> Zenker, Dr. Matthias<br>
<b>Betreff:</b> Re: [Gmsh] problem with gmsh to Freefem mesh?<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt">Hi Mathias, and thanks to the answer,<br>
<br>
How do you use this option exactly ? <o:p></o:p></p>
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<p class="MsoNormal">Julien<o:p></o:p></p>
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<p class="MsoNormal">On Thu, May 7, 2015 at 10:37 AM, Zenker, Dr. Matthias <<a href="mailto:Matthias.Zenker@erbe-med.com" target="_blank">Matthias.Zenker@erbe-med.com</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Hi,</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">I didn’t run your example, but how about Mesh > Optimize3D? This has solved problems
with malformed meshes for me in the past.</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">HTH,</span><o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Matthias</span><o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">Von:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> Julien Derr [mailto:<a href="mailto:julien.derr@gmail.com" target="_blank">julien.derr@gmail.com</a>]
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<b>Gesendet:</b> Mittwoch, 6. Mai 2015 14:54<br>
<b>An:</b> Geordie McBain<br>
<b>Cc:</b> <a href="mailto:gmsh@geuz.org" target="_blank">gmsh@geuz.org</a><br>
<b>Betreff:</b> Re: [Gmsh] problem with gmsh to Freefem mesh?</span><o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;margin-bottom:12.0pt">Hi Georgie,
<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;margin-bottom:12.0pt">here is a minimum example: if you run the script.sh you would get the error,<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;margin-bottom:12.0pt">thanks a lot!<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Julien<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">On Wed, May 6, 2015 at 2:19 AM, Geordie McBain <<a href="mailto:gdmcbain@freeshell.org" target="_blank">gdmcbain@freeshell.org</a>> wrote:<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">2015-05-06 2:20 GMT+10:00 Julien Derr <<a href="mailto:julien.derr@gmail.com" target="_blank">julien.derr@gmail.com</a>>:<br>
> Hi again, I am back again with the same error message!<br>
><br>
> but this time I checked that I didn't have twice the same points. He re is<br>
> the problem:<br>
><br>
> What happen is that I have 3 points perfectly aligned, and it seems gmsh is<br>
> making a flat triangle with them.<br>
<br>
Hello. I wouldn't have thought that collinearity would present a<br>
problem, necessarily, depending on how the points are used to define<br>
surfaces. I wasn't sure that I'd come across this before so created a<br>
simple degenerate quadrilateral, as attached; Gmsh & FreeFem++ seemed<br>
happy enough.<br>
Or do you mean that the three points are coincident rather than<br>
merely collinear?<br>
Do you have an exemplary .geo file that you could share?<br>
<br>
I agree that having to reduce the characteristic length to avoid the<br>
problem would be inconvenient and undesirable, but I'm hopeful that<br>
there's another way.<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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_____________________________________________________________________<br>
ERBE Elektromedizin GmbH<br>
Firmensitz: 72072 Tuebingen<br>
Geschaeftsfuehrer: Christian O. Erbe, Reiner Thede<br>
Registergericht: Stuttgart HRB 380137<o:p></o:p></p>
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_____________________________________________________________________<br>
ERBE Elektromedizin GmbH<br>
Firmensitz: 72072 Tuebingen<br>
Geschaeftsfuehrer: Christian O. Erbe, Reiner Thede<br>
Registergericht: Stuttgart HRB 380137<br>
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