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<span>Dear Christophe,<br>
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<div>Thank you for your prompt reply.<br>
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<div>I can successfully mesh the geometry file with Gmsh, without any errors, but the tetrahedral mesh does not seem to be correct at some locations. The faces of some tetrahedrons (please see attached images) are not aligned correctly, and therefore, not properly
connected. I have attached the mesh file and some images to demonstrate the problem.<br>
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<div>Best regards,</div>
<div>Kyle</div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Christophe Geuzaine <cgeuzaine@uliege.be><br>
<b>Sent:</b> Monday, 08 April 2019 3:30 PM<br>
<b>To:</b> Jackman, K, Dr [kjackman@sun.ac.za]<br>
<b>Cc:</b> gmsh@onelab.info<br>
<b>Subject:</b> Re: [Gmsh] Possible Error in Tetrahedral Meshing</font>
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> On 8 Apr 2019, at 12:47, Jackman, K, Dr [kjackman@sun.ac.za] <kjackman@sun.ac.za> wrote:<br>
> <br>
> To Whom It May Concern,<br>
> <br>
> I have noticed some errors in the tetrahedral meshes, generated by Gmsh (both v3.0.6 and v4.2.2). Under certain circumstances, e.g. volumes with holes, some tetrahedron elements do not align with adjacent tetrahedrons. An example is attached that demonstrates
this error, including images that show the location of the edges that do not connect.<br>
> <br>
> I have tried several geometric examples, including meshing algorithms (surface and volume), but this does not fix the problem. The attached example seems to work when selecting “Mesh.Algorithm = 2;”, but this is not always the case for other geometries.<br>
> <br>
> Hopefully, this is just a simple mistake in my geometry file.<br>
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The file you sent meshes fine here will all the algorithms. Can you send the .msh file that you think is wrong?<br>
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Christophe<br>
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> <br>
> Best regards,<br>
> Kyle<br>
> <br>
> <br>
> The integrity and confidentiality of this email are governed by these terms. Disclaimer<br>
> Die integriteit en vertroulikheid van hierdie e-pos word deur die volgende bepalings bereël. Vrywaringsklousule <Gmsh_error_overview.zip>_______________________________________________<br>
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<br>
— <br>
Prof. Christophe Geuzaine<br>
University of Liege, Electrical Engineering and Computer Science <br>
<a href="http://www.montefiore.ulg.ac.be/~geuzaine">http://www.montefiore.ulg.ac.be/~geuzaine</a><br>
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