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Dear Johannes,<BR>
<BR>
Except if I misunderstand something, I think my previous answer is suited to your problem.<BR>
<BR>
For example, consider the attached files generated with the following workflow:<BR>
<BR>
test4.med mesh file-> test4.msh mesh file generated by Gmsh-> test4.geo geometric file generated by "MeshToGeo" application-> manual edition->test4Edited.geo geometric file-> volume mesh->test4Edited.med volume mesh generated by Gmsh<BR>
<BR>
As you can see, the boundary surface mesh of the final test4Edited.med file is exactly identical in comparison with the initial test4.med surface mesh file (same number and positions of nodes).<BR>
<BR>
I hope this will help you,<BR>
<BR>
Regards,<BR>
<BR>
Benjamin<BR>
<BR>
On Thu, 2017-02-23 at 12:00 +0100, gmsh-request@ace20.montefiore.ulg.ac.be wrote:<BR>
<BLOCKQUOTE TYPE=CITE>
Message: 1<BR>
Date: Wed, 22 Feb 2017 13:22:36 +0100<BR>
From: Johannes_ACKVA <<A HREF="mailto:johannes.ackva@code-aster.de">johannes.ackva@code-aster.de</A>><BR>
To: DILASSER Guillaume <<A HREF="mailto:Guillaume.DILASSER@cea.fr">Guillaume.DILASSER@cea.fr</A>>, "<A HREF="mailto:gmsh@geuz.org">gmsh@geuz.org</A>"<BR>
<<A HREF="mailto:gmsh@geuz.org">gmsh@geuz.org</A>><BR>
Subject: Re: [Gmsh] how fill a 2D-mesh with 3D-elements calling GMSH<BR>
from the shell<BR>
Message-ID: <<A HREF="mailto:2d1a504a-3311-fdf2-c1c2-2a5a2ced627a@code-aster.de">2d1a504a-3311-fdf2-c1c2-2a5a2ced627a@code-aster.de</A>><BR>
Content-Type: text/plain; charset=windows-1252<BR>
<BR>
hello,<BR>
<BR>
many thanks, Guillaume Dilasser und Benjamin Jeanty-Ruard, for your<BR>
advices and time.<BR>
<BR>
Unfortunally, I need that the surface mesh remains identic (same number<BR>
and positions of nodes), so your proposals are not suited to my problem.<BR>
<BR>
I thought that any mesher (also those in GMSH) should be able to create<BR>
a 3D-mesh based on a closed hull of 2D-elements. Does anyone else know<BR>
if and how this can be achieved with GMSH? If not I will search for<BR>
another tool,<BR>
<BR>
thank you again and best regards<BR>
<BR>
Johannes Ackva<BR>
</BLOCKQUOTE>
<BR>
Previous message:<BR>
<BR>
Dear Johannes ACKVA,<BR>
<BLOCKQUOTE TYPE=CITE>
<BR>
If I well understand, your .med file is a mesh.<BR>
<BR>
Besides, it seems Gmsh can not edit a mesh file or can not convert from a mesh file to a geometry .geo file.<BR>
<BR>
A solution could be to convert your .med file to .msh file. Then, you can use the "Mesh To Geo" open source software to convert the from the .msh file to .geo file. You can download this application on the following web page (1) after a free registration on the following web page (2). This registration will give you a login and a password to download the "MeshToGeo" application<BR>
<BR>
(2) registration web page:<BR>
<A HREF="http://dev.artenum.com/projects/MeshToGeo/registration">http://dev.artenum.com/projects/MeshToGeo/registration</A><BR>
<BR>
(1) download web page:<BR>
<A HREF="http://dev.artenum.com/projects/MeshToGeo/download">http://dev.artenum.com/projects/MeshToGeo/download</A><BR>
<BR>
You will be able to edit the geo file and create a volume and finally generate a volume mesh. To finish, thanks to Gmsh, you can save the 3D mesh file in .med file.<BR>
<BR>
So if I summarize:<BR>
<BR>
.med mesh file-> .msh mesh file-> .geo geometric file-> manual edition->.geo geometric file-> volume mesh->.med volume mesh<BR>
<BR>
You can find in attachement a sample of these operations with the following workflow:<BR>
<BR>
test3.med mesh file-> testMesh.msh mesh file generated by Gmsh-> test.geo geometric file generated by "MeshToGeo" application-> manual edition->testMeshModified.geo geometric file-> volume mesh->.med volume mesh generated by Gmsh<BR>
<BR>
Regards,<BR>
<BR>
Benjamin Jeanty-Ruard<BR>
<BR>
On Mon, 2017-02-20 at 14:13 +0100, gmsh-request@ace20.montefiore.ulg.ac.be wrote:<BR>
<BLOCKQUOTE TYPE=CITE>
Message: 3<BR>
Date: Mon, 20 Feb 2017 12:36:56 +0100<BR>
From: Johannes_ACKVA <<A HREF="mailto:johannes.ackva@code-aster.de">johannes.ackva@code-aster.de</A>><BR>
To: <A HREF="mailto:gmsh@geuz.org">gmsh@geuz.org</A><BR>
Subject: [Gmsh] how fill a 2D-mesh with 3D-elements calling GMSH from<BR>
the shell<BR>
Message-ID: <<A HREF="mailto:816b4e5e-230f-3470-2c40-d6b8a2c22313@code-aster.de">816b4e5e-230f-3470-2c40-d6b8a2c22313@code-aster.de</A>><BR>
Content-Type: text/plain; charset=utf-8<BR>
<BR>
hello<BR>
<BR>
how can I fill a closed hull of 2D-elements with 3D-elements, by calling<BR>
GMSH from the shell?<BR>
<BR>
I tried this:<BR>
<BR>
<BR>
<FONT COLOR="#737373">> gmsh MeshTria_2D.med -3 -o quark.med</FONT><BR>
<BR>
Info : Running '/opt/gmsh-2.13.1-Linux/bin/gmsh MeshTria_2D.med -3 -o<BR>
quark.med' [Gmsh 2.13.1, 1 node, max. 1 thread]<BR>
Info : Started on Mon Feb 20 09:20:03 2017<BR>
Info : Reading 'MeshTria_2D.med'...<BR>
Info : Reading MED file V3.2.0 using MED library V3.2.0<BR>
Info : Reading 3-D unstructured mesh <<MeshTria_2D>><BR>
Info : Done reading 'MeshTria_2D.med'<BR>
Info : Finalized high order topology of periodic connections<BR>
Info : Meshing 1D...<BR>
Info : Done meshing 1D (8e-06 s)<BR>
Info : Meshing 2D...<BR>
Info : Done meshing 2D (6.91414e-06 s)<BR>
Info : Meshing 3D...<BR>
Info : Done meshing 3D (5e-06 s)<BR>
Info : 8 vertices 24 elements<BR>
Info : Writing 'quark.med'...<BR>
Info : Done writing 'quark.med'<BR>
Info : Stopped on Mon Feb 20 09:20:03 2017<BR>
<BR>
but the resulting mesh does not contain any 3D-elements, it is identic<BR>
to the input mesh.<BR>
<BR>
Moreover, I discovered that after loading the 2D-mesh (MeshTria_2D.med)<BR>
into the GUI, the button "3D" in "Mesh" does not create any 3D-elements.<BR>
I fear that a geometry is needed. Or is there a manner to create a<BR>
volume mesh from a 2D-mesh?<BR>
<BR>
Many thanks for your help,<BR>
<BR>
Johannes_ACKVA <BR>
</BLOCKQUOTE>
</BLOCKQUOTE>
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--
Benjamin JEANTY-RUARD
--------------------
Artenum Toulouse - Science & Groupware
http://www.artenum.com
Bâtiment Calfocenter
10, rue Marguerite Long
31320 Castanet-Tolosan
France
Phone: +33 (0)5 82 95 51 97
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