[CIG-SEISMO] Exporting mesh from Trelis to SPECFEM3d

[Hom Nath Gharti]

Hi Emanuele,

Do you mean something like this? I generally had no problems but in
few cases I had negative Jacobin for surfaces due to different
ordering for which I have control parameter "-norm=1" to make sure
that the nodes are in right order.

Looking forward to your GEOCUBIT update!
Thanks,
Hom Nath

On Tue, Mar 29, 2016 at 3:21 PM, emanuele casarotti
<emanuele.casarotti at ingv.it> wrote:
> Hi Hom, did you try your approach when there is a "tripling" refined layer?
> that could be a nice news since in the past the exodus format was critical
> in the orientation of the nodes after the refinement with negative jacobian
> in specfem3d.
> or did you introduce some control?
>
> Emanuele
>
> On Tue, Mar 29, 2016 at 8:37 PM Hom Nath Gharti <hgharti at princeton.edu>
> wrote:
>>
>> Sorry there were some typos in two files! Attached updated.
>>
>> On Tue, Mar 29, 2016 at 2:26 PM, Hom Nath Gharti <hgharti at princeton.edu>
>> wrote:
>> > Dear Aymen & Junwei,
>> >
>> > It seems that CUBIT_GEOCUBIT has some issues in defining the
>> > boundaries if there are internally embedded objects. Automatically
>> > defining boundaries for complicated models is sometimes tricky. I
>> > think Emanuele Casarotti is looking into this issue.
>> >
>> > We also use another program (attached) to convert TRELIS/CUBIT file to
>> > SPECFEM3D files. In order to use this program you need to define
>> > element blocks and boundary surfaces yourself in the TRELIS/CUBIT.
>> > This allows you to define boundary surfaces in any complex models.
>> > Additionally, NetCDF (http://www.unidata.ucar.edu/software/netcdf/)
>> > library has to be installed. Generally, this is installed by default
>> > in Linux. You can type "ncdump" in your terminal to check whether the
>> > NetCDF is installed.
>> >
>> > Step by step instructions are included in README file.
>> >
>> > I hope this helps.
>> >
>> > PS: This program works only on latest version of TRELIS/CUBIT. Older
>> > versions have slightly different formats. If you have older versions
>> > let me know.
>> >
>> > Best,
>> > Hom Nath
>> >
>> >
>> > On Tue, Mar 29, 2016 at 10:56 AM, Aymen MHENNI
>> > <aymen_mhenni at hotmail.com> wrote:
>> >> Dear SPECFEM developers,
>> >>
>> >> I have created a geometry with Trelis Pro 15.0 (attached file) and i
>> >> want to
>> >> export mesh from Trelis to SPECFEM3d.
>> >> Can you please give me more details about using CUBIT_GEOCUBIT.
>> >>
>> >> Best regards,
>> >>
>> >> Aymen
>> >>
>> >>
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