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<p class="MsoNormal"><span style="font-size:11.0pt; font-family:"Calibri","sans-serif"; color:#1F497D">Hi,</span></p>
<p class="MsoNormal"><span style="font-size:11.0pt; font-family:"Calibri","sans-serif"; color:#1F497D"> </span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt; font-family:"Calibri","sans-serif"; color:#1F497D">I try to answer although I am no gmsh developper. ;)</span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt; font-family:"Calibri","sans-serif"; color:#1F497D">To my knowledge, the best there is at the moment is to use the “cut and merge faces” feature imported from Salomé which is available under Tools->Options->Geometry->General
in the gmsh GUI. Check it and open your geometry file (e.g. a STEP file). If you are lucky, duplicated faces in your geometry will be recognized and merged. It doesn’t work for all cases, so there is much room for improvement.</span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt; font-family:"Calibri","sans-serif"; color:#1F497D">I am trying to write a postprocessor for such nonconformal meshes, but it is a very tedious work and not mature yet.</span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt; font-family:"Calibri","sans-serif"; color:#1F497D">I don’t know if there is any work on this subject in the gmsh team…</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</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""> Benedikt Oswald [mailto:benedikt.oswald@psi.ch]
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<b>Gesendet:</b> Mittwoch, 22. August 2012 10:45<br>
<b>An:</b> gmsh@geuz.org<br>
<b>Betreff:</b> [Gmsh] periodic, aka. conforming boundary meshes ?</span></p>
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<p class="MsoNormal">Dear gmsh developers</p>
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<p class="MsoNormal">I know I have asked about the state of periodic, aka. conforming boundary meshes,</p>
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<p class="MsoNormal">in 3D a while ago. Is there any news on this ?</p>
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<p class="MsoNormal">I recently compiled gmsh from svn and tried to mesh a simple cube-like structure that</p>
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<p class="MsoNormal">requires conforming boundary meshes since it models a xy periodic electromagnet problem.</p>
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<p class="MsoNormal">However, the periodic surface mesh is wrong, showing massive distortions, see below.</p>
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<p class="MsoNormal">I would appreciate if you could comment on your development schedule regarding</p>
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<p class="MsoNormal">periodicity.</p>
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<p class="MsoNormal">Thanks, Benedikt</p>
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<p class="MsoNormal"><img width="1378" height="869" id="_x0038_11a3ac2-b717-4b82-ba9c-ce956c009bf6" src="cid:image002.png@01CD805C.244B8CD0"></p>
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<p class="MsoNormal"><span style="font-size:13.5pt; font-family:"Helvetica","sans-serif"; color:black">--------------------------------------------------------------------------------------------------------------------------------------------------------------------</span></p>
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<p class="MsoNormal"><span style="font-size:13.5pt; font-family:"Helvetica","sans-serif"; color:black">Benedikt Oswald, Dr. sc. techn., dipl. El. Ing. ETH,
<a href="http://www.psi.ch">www.psi.ch</a>, GFA</span></p>
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<p class="MsoNormal"><span style="font-size:13.5pt; font-family:"Helvetica","sans-serif"; color:black">Paul Scherrer Institute (PSI), CH-5232 Villigen, Suisse,
<a href="mailto:benedikt.oswald@psi.ch">benedikt.oswald@psi.ch</a>, +41(0)56 310 32 12</span></p>
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<p class="MsoNormal"><span style="font-size:13.5pt; font-family:"Helvetica","sans-serif"; color:black"> </span></p>
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<p class="MsoNormal"><span style="font-size:13.5pt; font-family:"Helvetica","sans-serif"; color:black">"Passion is required for any great work, and for the revolution passion and audacity are required in big doses.",<br>
Ernesto 'Che' Guevara, Letter to his parents.<br>
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