[Gmsh] Missing tets in Gmsh

Marcelo Siqueira mfsiqueira at gmail.com
Wed Sep 27 18:22:52 CEST 2017

Dear Dr. Christophe Geuzaine and Dr. Jean-François Remacle:

I found a problem with Gmsh in which some tets are not included in the
final .msh file.

I believe the problem is in the “writer procedure” that generates .msh and
.vtk files.

The input .geo file is attached and was processed with Gmsh 3.0.5.
Information for the

Build is included in the attached picture. In Gmsh I pressed (3D, Set order
2, Optimize 3D, Save).

The problem that can be found in the output .msh file is the following:

Nodes 19092, 19733, 19378, 19951 are all located on the top surface, and
form two triangles

(19092, 19733, 19378) and (19378, 19951, 19092).

These triangles are included as elements in the file. However, there are no
tets in the file for

which either of these triangles is a face.

I really appreciate any thoughts you may have to help me with this issue.

Thank you in advance

Best regards,


[image: cid:image001.png at 01D33158.49622C10]
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