[Gmsh] API define periodic line

Artur Palha artur.palha at gmail.com
Wed Apr 25 13:12:15 CEST 2018


Dear Benedikt,

Thank you for your reply. Unfortunately I am unable to understand exactly
what you mean by that. Roughly I think that you define the periodic surface
2 (for example) to be the translation along [400,0,0] of the surface 1.
Still you make use of the Periodic Surface call. My problem is that I am
unable to find an equivalent function to Periodic Surface in the API of
gmsh.

To make it clearer: What is the equivalent code using the API of gmsh that
implements:

Periodic Line{mySlaveLine} = {myMasterLine};

Once again thank you for your help.

-artur palha


On Wed, Apr 25, 2018 at 12:07 PM, Benedikt Oswald <
benedikt.oswald at lspr.swiss> wrote:

> Dear Artur, what you can do is something along these lines:
>
> // constrain the boundary surfaces to conformal discretization
>
> // x
> Periodic Surface {2} = {1} Translate {400,0,0};        // ex
>
> // y
> Periodic Surface {4} = {3} Translate {0,300,0};        // ey
>
> // z - floor and roof
> Periodic Surface {6} = {5} Translate {0,0,150};        // ez
>
> in fact, you need to know the id of the geometrical entity (surface)
>
> and transfer it by the requested amount.
>
> Greeetings, Benedikt
>
>
>
>
> Am 25.04.18 um 12:02 schrieb Artur Palha:
> > Dear All,
> >
> > I am trying to use gmsh's API. I can successfully use it to setup my
> > geometry and generate the mesh. The only issue I am having is that I
> > cannot find the function (both in Python and C++) to define Periodic
> > Lines (or Periodic Surfaces). Does anyone know this?
> >
> > Thank you.
> >
> > -artur palha
> >
> >
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> --
> ------------------------------------------------------------
> ----------------------------------------------------------
> Dr. sc. techn. Benedikt Oswald - first engineer - LSPR AG - phone +41 43
> 366 90 74
> Grubenstrasse 9, CH-8045 Zürich, benedikt.oswald at lspr.swiss
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