[Gmsh] Help understanding MSH file entries while using "Periodic surface with translate "

[DILASSER Guillaume]

Hi,

Have you looked at the documentation here<http://gmsh.info/doc/texinfo/gmsh.html#MSH-ASCII-file-format> ? It says :
$Periodic
number-of-periodic-entities
dimension slave-entity-tag master-entity-tag
number-of-nodes
slave-node-number master-node-number
…
$EndPeriodic
It looks like your information.

Faithfully Yours,

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>

De : gmsh [mailto:gmsh-bounces at ace20.montefiore.ulg.ac.be] De la part de Ranga Sudarsan
Envoyé : jeudi 27 avril 2017 12:56
À : gmsh mailing list <gmsh at onelab.info>
Objet : [Gmsh] Help understanding MSH file entries while using "Periodic surface with translate "

 Hi there,
    I am meshing a geometry with periodic (translated meshes) boundary conditions along one of the directions (X in my case). I am using
periodic surface with translate to setup the translated periodic meshes. I need help understanding some entries in the Msh file generated specifically the section under "$Periodic" (See attached image, in my case surfaces 1 and 8 are periodic). I understand that in my case their are totally 11 periodic entities -- 5 points , 5 lines and 1 surface and my trouble is in understanding the format of the output corresponding to each of these periodic entities. It will be of great help if some one explain to me what is the format for each of these entities so that I can write a code to read the msh file and generate relevant input files for my finite element solver. I have attached the geo and mesh file.

Thanks again
Ranga Sudarsan
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://onelab.info/pipermail/gmsh/attachments/20170427/094456a0/attachment-0001.html>