<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Hi Wayne,<div>For that you have to reclasify the elements of your geometry and create the volume with the new surfaces.</div><div><br></div><div>Try this:</div><div>**********************</div><div><div>Mesh.RemeshAlgorithm=1; //(0) nosplit (1) automatic (2) split only with metis</div><div><br></div><div>Merge "try1-geom.gmsh";</div><div>RefineMesh;</div><div>CreateTopology;</div><div><br></div><div>ll[] = Line "*";</div><div>For j In {0 : #ll[]-1}</div><div> Compound Line(newl) = ll[j];</div><div>EndFor</div><div><br></div><div>ss[] = Surface "*";</div><div>For j In {0 : #ss[]-1}</div><div> ssn[] += news ;</div><div> Compound Surface(news) = ss[j];</div><div>EndFor</div><div><br></div><div><br></div><div>Surface Loop(10) = { ssn[] };</div><div>Volume(11) = {10};</div><div><br></div><div>Physical Volume("Cylinder.2") = {11};</div></div><div>**********************</div><div><br></div><div><br></div><div>Regards,</div><div>Ruth</div><div><br><div apple-content-edited="true">
<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-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; "><div>--</div><div>Dr. Ir. Ruth V. Sabariego</div><div>University of Liege, Electrical Engineering & Computer Science, </div><div>Applied & Computational Electromagnetics (ACE),</div><div>phone: +32-4-3663737 - fax: +32-4-3662910 - <a href="http://ace.montefiore.ulg.ac.be/">http://ace.montefiore.ulg.ac.be/</a></div><br class="Apple-interchange-newline"><br></div></span></div>
</div>
<br><div><div>On 24 Mar 2012, at 23:41, Wayne Christopher wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite">
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Hi Ruth,<br>
<br>
Thanks - that fixes my volume problem.<br>
<br>
My other problem remains, though. I want to define geometry using a
msh file, and then create a mesh with new surface elements, not the
ones I am using for geometry surfaces. Is there a way to do this?<br>
<br>
Wayne<br>
<br>
On 3/23/12 2:09 PM, Ruth V. Sabariego wrote:
<blockquote cite="mid:D56BD075-2972-4FE0-818A-0AD5C97536B1@ulg.ac.be" type="cite">Hi Wayne,
<div><br>
</div>
<div>You need to define the geometrical Volume:</div>
<div>Volume(11) = {10};</div>
<div>the Physical Volume is used just for tagging the elements and
their further use in a e.g. FE solver.</div>
<div><br>
</div>
<div>Regards,</div>
<div>Ruth</div>
<div><br>
<div apple-content-edited="true">
<span class="Apple-style-span" style="border-collapse: separate; 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; 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; 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; ">
<div>--</div>
<div>Dr. Ir. Ruth V. Sabariego</div>
<div>University of Liege, Electrical Engineering
& Computer Science, </div>
<div>Applied & Computational Electromagnetics
(ACE),</div>
<div>phone: +32-4-3663737 - fax: +32-4-3662910 - <a moz-do-not-send="true" href="http://ace.montefiore.ulg.ac.be/">http://ace.montefiore.ulg.ac.be/</a></div>
<br class="Apple-interchange-newline">
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</div>
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</div>
<br>
<div>
<div>On 23 Mar 2012, at 18:41, Wayne Christopher wrote:</div>
<br class="Apple-interchange-newline">
<blockquote type="cite">
<div>I'm trying to mesh a volume defined by surfaces that
are defined by tessellations. I don't want the mesh to be
based on the surface triangles - those are purely geometry
and in most cases finer than the volume mesh that I want.<br>
<br>
When I run gmsh like this:<br>
<br>
gmsh try1.geo -3 -format msh -saveall -smooth 3 -o
try1-out.gmsh<br>
<br>
(files attached) I do not get any tetras in the output,
and it appears that the output mesh is a refinement of the
input mesh.<br>
<br>
What am I doing wrong? Thanks,<br>
<br>
Wayne<br>
<br>
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