[Gmsh] R: R: Geometry modification on physical entities

[Alessandro Vicini]

Hullo Guillaume,



yes, starting from an existing geo I want to rotate physical components in order to manage automatic geometry modifications and mesh generation from an external executable program.



But following your suggestion what I can do from my external program is to add the lines:



tmp[] = Physical Surface { xyz } ;



Rotate { { 1. , 0. , 0. } , { 0. , 0. , 0. } , Pi/2. }

       { Surface { tmp[] } ; }



to my .geo file and then generate the mesh, this should work...



Alessandro







-----Messaggio originale-----
Da: DILASSER Guillaume [mailto:Guillaume.DILASSER at cea.fr]
Inviato: lunedì 6 febbraio 2017 11.03
A: Alessandro Vicini
Cc: gmsh at geuz.org
Oggetto: RE: [Gmsh] R: Geometry modification on physical entities



Hello Alessandro,



Have a look at the enclosed file for an example of what Christophe was mentioning. Also, I don't understand what you are trying to achieve "from the command line". Is it that you generate geometry as a physical entity in one .geo file and want to rotate it afterwards ? If that is the case, I don't think this can actually work because there is no input argument that you could use from the command line to specify with Physical Entity you wish to transform. This at least will have to be defined somewhere in a .geo file.





Guillaume DILASSER

Doctorant SACM / LEAS

CEA - Centre de Saclay - Bât.123 - PC 319c

91191 Gif sur Yvette Cedex - France -



guillaume.dilasser at cea.fr<mailto:guillaume.dilasser at cea.fr>



-----Message d'origine-----

De : gmsh [mailto:gmsh-bounces at ace20.montefiore.ulg.ac.be] De la part de Alessandro Vicini Envoyé : lundi 6 février 2017 09:38 À : Christophe Geuzaine <cgeuzaine at ulg.ac.be<mailto:cgeuzaine at ulg.ac.be>> Cc : gmsh at geuz.org<mailto:gmsh at geuz.org> Objet : [Gmsh] R: Geometry modification on physical entities





I'm afraid this is not clear to me, how can I use this feature from command line? Thank you.



Alessandro







-----Messaggio originale-----

Da: Christophe Geuzaine [mailto:cgeuzaine at ulg.ac.be]

Inviato: domenica 5 febbraio 2017 10.34

A: Alessandro Vicini

Cc: gmsh at geuz.org<mailto:gmsh at geuz.org>

Oggetto: Re: [Gmsh] Geometry modification on physical entities





> On 3 Feb 2017, at 10:18, Alessandro Vicini <alessandro.vicini at sitael.com<mailto:alessandro.vicini at sitael.com>> wrote:

>

>

> Geometry modifications (such as a rotation) can only be applied to elementary entities? Is there a way to apply them on physical entities instead? Thank you.



No, but you can get all the elementary entities making up a physical group using e.g. "Physical Line {tag}" (it returns a list), which you can then use in the transformation commands.



>

> Alessandro

>

>

>

>

>

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--

Prof. Christophe Geuzaine

University of Liege, Electrical Engineering and Computer Science http://www.montefiore.ulg.ac.be/~geuzaine



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