[Gmsh] Deleting elements

[Kiran Chandra]

Dear Dr. Rene Schneider,

Thanks for the reply. I tried the physical volume but could you please tell
me if it is possible to start the node numbering and the element numbering
in the exported mesh from 1. If I created the 3D mesh from extrusion, the
physical volume exports only the volume elements but the numbering does not
start from 1.
I use my own code for the analysis and I dont want to do much preprocessing
myself if it is possible from within gmsh.

thanks
regards
Kiran



On Sun, Jul 7, 2013 at 11:55 PM, Rene Schneider <
rene.schneider at mathematik.tu-chemnitz.de> wrote:

> Hello Kiran
>
>
> On 07/06/2013 08:41 PM, Kiran Chandra wrote:
>
>> Hello,
>> I would like to generate a 3D mesh. To this end, I generate a 2D mesh
>> and then extrude it.
>> However, while exporting, I want to delete all the 2D elements, renumber
>> the remaining 3D mesh and export it. Can this be done?
>> (I use my own code for the analysis and I do not know how to automate
>> the renumbering in my code.)
>> thanks in advance
>>
>
> I suggest you define your volume to be a "physical volume". Once any
> physical items are present in the geometry, only those physical items are
> exported in the mesh. I.e. if you don't mark the boundary as physical as
> well, the triangles of the boundary will not be exported separately.
>
> Hope this helps.
>
> Rene
>
>
> --
> ------------------------------**----------------------
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>       Dr. Rene Schneider
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>
>       http://www.tu-chemnitz.de/~**rens <http://www.tu-chemnitz.de/~rens>
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