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<p class="MsoPlainText">Hi Johannes,<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText"><span lang="EN-US">The option -3 does indeed call the 3D meshing algorithm but for it to work, volumes have to be defined. In your case, since you feed Gmsh a MED file, you don't have any Gmsh geometrical elements declared, just pure
mesh and the program does not know how to handle it. The first step is therefore to re-build geometrical elements to establish a model of your shell and then call the 3D algorithm to mesh inside. Have a look at the enclose files and let me know if it helped.
Note that this procedure will re-mesh the shell and thus you might not (read : certainly won't) have the same surface mesh in you output file as in your input MED...
<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US">Sincerely Yours,<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Tahoma",sans-serif;color:#000099;mso-fareast-language:FR">Guillaume DILASSER</span><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma",sans-serif;color:#000099;mso-fareast-language:FR"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:7.5pt;font-family:"Arial",sans-serif;color:#000099;mso-fareast-language:FR">Doctorant SACM / LEAS<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:7.5pt;font-family:"Arial",sans-serif;color:#000099;mso-fareast-language:FR">CEA - Centre de Saclay - Bât.123 - PC 319c</span><span style="color:#000099;mso-fareast-language:FR"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:7.5pt;font-family:"Arial",sans-serif;color:#000099;mso-fareast-language:FR">91191 Gif sur Yvette Cedex - France -</span><span style="color:#000099;mso-fareast-language:FR"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:7.5pt;font-family:"Arial",sans-serif;color:#000099;mso-fareast-language:FR"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:7.5pt;font-family:"Arial",sans-serif;color:#000099;mso-fareast-language:FR"><a href="mailto:guillaume.dilasser@cea.fr"><span style="color:blue">guillaume.dilasser@cea.fr</span></a><o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoPlainText"><span style="mso-fareast-language:FR">-----Message d'origine-----<br>
De : gmsh [mailto:gmsh-bounces@ace20.montefiore.ulg.ac.be] De la part de Johannes_ACKVA<br>
Envoyé : lundi 20 février 2017 12:37<br>
À : gmsh@geuz.org<br>
Objet : [Gmsh] how fill a 2D-mesh with 3D-elements calling GMSH from the shell</span></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">hello<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">how can I fill a closed hull of 2D-elements with 3D-elements, by calling GMSH from the shell?<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">I tried this:<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">> gmsh MeshTria_2D.med -3 -o quark.med<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">Info : Running '/opt/gmsh-2.13.1-Linux/bin/gmsh MeshTria_2D.med -3 -o<o:p></o:p></p>
<p class="MsoPlainText">quark.med' [Gmsh 2.13.1, 1 node, max. 1 thread]<o:p></o:p></p>
<p class="MsoPlainText">Info : Started on Mon Feb 20 09:20:03 2017<o:p></o:p></p>
<p class="MsoPlainText">Info : Reading 'MeshTria_2D.med'...<o:p></o:p></p>
<p class="MsoPlainText">Info : Reading MED file V3.2.0 using MED library V3.2.0<o:p></o:p></p>
<p class="MsoPlainText">Info : Reading 3-D unstructured mesh <<MeshTria_2D>><o:p></o:p></p>
<p class="MsoPlainText">Info : Done reading 'MeshTria_2D.med'<o:p></o:p></p>
<p class="MsoPlainText">Info : Finalized high order topology of periodic connections<o:p></o:p></p>
<p class="MsoPlainText">Info : Meshing 1D...<o:p></o:p></p>
<p class="MsoPlainText">Info : Done meshing 1D (8e-06 s)<o:p></o:p></p>
<p class="MsoPlainText">Info : Meshing 2D...<o:p></o:p></p>
<p class="MsoPlainText">Info : Done meshing 2D (6.91414e-06 s)<o:p></o:p></p>
<p class="MsoPlainText">Info : Meshing 3D...<o:p></o:p></p>
<p class="MsoPlainText">Info : Done meshing 3D (5e-06 s)<o:p></o:p></p>
<p class="MsoPlainText">Info : 8 vertices 24 elements<o:p></o:p></p>
<p class="MsoPlainText">Info : Writing 'quark.med'...<o:p></o:p></p>
<p class="MsoPlainText">Info : Done writing 'quark.med'<o:p></o:p></p>
<p class="MsoPlainText">Info : Stopped on Mon Feb 20 09:20:03 2017<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">but the resulting mesh does not contain any 3D-elements, it is identic to the input mesh.<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">Moreover, I discovered that after loading the 2D-mesh (MeshTria_2D.med) into the GUI, the button "3D" in "Mesh" does not create any 3D-elements.<o:p></o:p></p>
<p class="MsoPlainText">I fear that a geometry is needed. Or is there a manner to create a volume mesh from a 2D-mesh?<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">Many thanks for your help,<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">Johannes_ACKVA<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">_______________________________________________<o:p></o:p></p>
<p class="MsoPlainText">gmsh mailing list<o:p></o:p></p>
<p class="MsoPlainText"><a href="mailto:gmsh@onelab.info"><span style="color:windowtext;text-decoration:none">gmsh@onelab.info</span></a><o:p></o:p></p>
<p class="MsoPlainText"><a href="http://onelab.info/mailman/listinfo/gmsh"><span style="color:windowtext;text-decoration:none">http://onelab.info/mailman/listinfo/gmsh</span></a><o:p></o:p></p>
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