[Gmsh] How to mesh only the volume(s) and not the lines, surfaces etc?

[jeremy theler]

http://gmsh.info/doc/texinfo/gmsh.html#Elementary-vs-physical-entities

On Wed, Oct 11, 2017, 17:36 Fernando Lorenzo <felorenzo at att.net> wrote:

> If you save your mesh as Tochnog format, you will only get the tetrahedron
> or hexahedron if that is what you choose.
>
> Your file will be name.dat. It will have a lot of details on how to set up
> the input file for tochnog, but you will find all the nodes and
> connectivities.
>
>
> Fernando Lorenzo
>
> Sent from my iPhone
>
> On Oct 11, 2017, at 9:54 AM, Shamsul Arefin <mail.shanto at gmail.com> wrote:
>
> How to mesh only the volume(s) and not the lines, surfaces etc?
>
> In my project I have imported a step-file of a bearing race (imagine a
> hollow cylinder). I want meshes on the volume only. The other geometric
> entities should be ignored. How do I make that happen?
>
> Normally if I use the '3D' mesh from the command tree, i find elements on
> the line, surface and volumes. Whereas, I don't want any 2D elements rather
> only 3D tetrahedron was expected.
>
> 1# I have tried to delete the geometry items, the edges, and failed. >>>
> idea was to keep only the volume entity in the CAD and mesh only the volume.
>
> 2# i tried to define physical entities of the volumes, to mesh only that physical
> entity, and failed.
>
>  a. I could not perform a selection (in coding) only for the volume
> elements..
>
>  b. even if I could succeed to select the volumes, I don't find a Meshing
> command to mesh only a particular physical entity.
>
>
> ​
> Regards,
> Shamsul Arefin
>
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-- 
--
jeremy theler
www.seamplex.com
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