[Gmsh] Extrude from imported geometry

DILASSER Guillaume Guillaume.DILASSER at cea.fr
Mon Mar 6 17:04:16 CET 2017

Hi Daniel,

The Extrude command works primarily with geometry objects and not mesh objects. It can be used to Extrude mesh elements (for example using the "Layer" option) but only if you are extruding them alongside the supporting geometry. That is why you are able to work with the Gmsh "mesh" (you extrude the geometry and the mesh follows) but not the imported Brep. If you can, I would suggest you to build the 2D geometry to be extruded within Gmsh instead of importing it, it would save a lot of trouble… Nevertheless, I imagine you do have a good reason, if that is the case let me know.

Sincerely Yours,

Guillaume DILASSER
Doctorant SACM / LEAS
CEA - Centre de Saclay - Bât.123 - PC 319c
91191 Gif sur Yvette Cedex - France -

guillaume.dilasser at cea.fr<mailto:guillaume.dilasser at cea.fr>

-----Message d'origine-----

De : gmsh [mailto:gmsh-bounces at ace20.montefiore.ulg.ac.be] De la part de Daniel

Envoyé : vendredi 3 mars 2017 21:11

À : gmsh at onelab.info

Objet : [Gmsh] Extrude from imported geometry


Even with the most simple example, I am not able to extrude a mesh from an imported .brep geometry (see attachment). I always get an error message like:

Error   : Impossible to extrude entity 1 (of type 306)

Extruding from native gmsh geometry works fine.

Is the Extrude command not supported for imported geometry, or am I doing something wrong?

Best Regards

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