<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Dear Mikhail, yes, in fact you are quit rights. Greetings, Benedikt<div><br><div><br></div><div><br><div><div>On Aug 23, 2012, at 6:56 AM, Mikhail Artemiev wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div>Hi all!<br><br>Matthias, I think, Benedikt means not duplicated faces, but faces with the same mesh, that should be created by "Symmetry" command.<br>Benedikt, am I right?<br><br>I join to Benedikt's question, because periodic mesh is very interesting for me.<br><br>Mikhail<br><br><br>Date: Wed, 22 Aug 2012 09:55:29 +0000<br>From: "Zenker, Dr. Matthias" <<a href="mailto:Matthias.Zenker@erbe-med.com">Matthias.Zenker@erbe-med.com</a>><br>To: 'Benedikt Oswald' <<a href="mailto:benedikt.oswald@psi.ch">benedikt.oswald@psi.ch</a>>, "<a href="mailto:gmsh@geuz.org">gmsh@geuz.org</a>"<br><<a href="mailto:gmsh@geuz.org">gmsh@geuz.org</a>><br>Cc: Christophe Geuzaine <<a href="mailto:cgeuzaine@ulg.ac.be">cgeuzaine@ulg.ac.be</a>><br>Subject: Re: [Gmsh] periodic, aka. conforming boundary meshes ?<br><br>Hi,<br><br>I try to answer although I am no gmsh developper. ;)<br>To my knowledge, the best there is at the moment is to use the "cut and merge faces" feature imported from Salom? 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.<br>I am trying to write a postprocessor for such nonconformal meshes, but it is a very tedious work and not mature yet.<br>I don't know if there is any work on this subject in the gmsh team...<br><br>Matthias<br><br>Von: Benedikt Oswald [mailto:benedikt.oswald@psi.ch]<br>Gesendet: Mittwoch, 22. August 2012 10:45<br>An: <a href="mailto:gmsh@geuz.org">gmsh@geuz.org</a><br>Betreff: [Gmsh] periodic, aka. conforming boundary meshes ?<br><br>Dear gmsh developers<br><br>I know I have asked about the state of periodic, aka. conforming boundary meshes,<br>in 3D a while ago. Is there any news on this ?<br><br>I recently compiled gmsh from svn and tried to mesh a simple cube-like structure that<br>requires conforming boundary meshes since it models a xy periodic electromagnet problem.<br>However, the periodic surface mesh is wrong, showing massive distortions, see below.<br><br>I would appreciate if you could comment on your development schedule regarding<br>periodicity.<br><br>Thanks, Benedikt<br></div></blockquote></div><br><div apple-content-edited="true">
<span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; "><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-size: medium; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-size: medium; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div><div>--------------------------------------------------------------------------------------------------------------------------------------------------------------------</div><div>Benedikt Oswald, Dr. sc. techn., dipl. El. Ing. ETH, <a href="http://www.psi.ch">www.psi.ch</a>, GFA</div><div>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</div><div><br></div><div>"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>--------------------------------------------------------------------------------------------------------------------------------------------------------------------</div></div></div></span></div></span></div></span></span>
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