[Gmsh] conformal mulitregion meshing from commandline +step file import

[Anan Im]

Hi Matthias,
http://forum.freecadweb.org/viewtopic.php?f=18&t=10846&p=103978#p103978
whereas still the question remains what exactly means "conformal". Is this conformal? Looks like it, no?
Regards


26.10.2015, 13:28, "Zenker, Dr. Matthias" <Matthias.Zenker at erbe-med.com>:
> Hi,
>
> AFAIK gmsh can NOT generate a conformal 3D mesh for a multibody STEP file with common interfaces between the bodies, (except for very simple cases where "cut and merge faces" works). If I am wrong here, I would be most interested to learn how this is achieved.
> The only way I know to achieve a conformal mesh with OpenSource tools is to use Salomé, import the STEP there, and do a partition. Then you can either do the meshing in Salomé or use gmsh (which has a better meshing capability than Salomé to my experience). In the latter case, export the partitioned geometry in brep format, import in gmsh and mesh.
>
> HTH,
>
> Matthias
>
>>  -----Ursprüngliche Nachricht-----
>>  Von: Anan Im [mailto:ananim343297 at yandex.com]
>>  Gesendet: Sonntag, 25. Oktober 2015 10:41
>>  An: gmsh at geuz.org
>>  Betreff: [Gmsh] conformal mulitregion meshing from commandline +step file
>>  import
>>
>>  Hi everybody,
>>  as to my knowledge gmsh is capable of "conformal" meshing from command
>>  line: For example with Justin Blacks pycalculix on
>>  http://justinablack.com/pycalculix/ one can use gmsh for it, in this case in a
>>  way, where the meshing functions are written into the .geo file - beneath
>>  the cad functions.
>>  On the other hand there are scripts that export step files for meshing to
>>  gmsh, using its command line interface. Already I experimented with
>>  exporting a so called compound - but did not succeed in terms of conformal
>>  meshing by now.
>>
>>  Which leads to the question:
>>  Can not one communicate the meshing functions (Mesh.*) from/through
>>  the command line, if geometry is imported from a cad program, lets say in
>>  step format, anything different from geo?
>>
>>  I might express that I will be very thankful (and not only mine) if there gets
>>  (known) a non interactive conformal meshing interface to the open source
>>  world.
>>  So if you can exclude that there is a way, which would be a valuable
>>  information in itself btw, would you put this as "feature request" on the list
>>  of future development?
>>
>>  Thanks in advance
>
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