<html>
<head>
<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
</head>
<body bgcolor="#FFFFFF" text="#000000">
<div class="moz-cite-prefix">Hi Guillaume, <br>
yes I have looked at the documentation to understand it but I
cannot understand it fully though.<br>
<br>
The entries for the point entity inside the $Periodic I think I
understand (please correct me If I am wrong?).<br>
For example: <br>
0 8 1 // 0 indicating it is point, 8 and 1 are slave and master
tag entity<br>
Affine 1 0 0 5 0 1 0 0 0 0 1 0 0 0 0 1 // indicating the Affine
transformation to go from master to slave<br>
1 // Number of entities<br>
8 1 // slave node number, master node number<br>
<br>
For the Line entity Inside $Periodic I have for example<br>
1 12 2 // 1 indicating it is a line , Not clear what 12 and 2
correspond to as they are not corresponding node numbers<br>
Affine 1 0 0 5 0 1 0 0 0 0 1 0 0 0 0 1<br>
43 // Number of nodes <br>
xx xx // Matching node numbers<br>
<br>
I cannot seem to understand 12 and 2 in the first line after 1 as
12 and 2 are not corresponding point/node numbers on the master
and slave surfaces.<br>
<br>
Likewise for the Surface entity inside $Periodic I have for
example<br>
<br>
2 8 1 // 2 indicating it is a surface, Not clear what 8 and 1 are<br>
Affine 1 0 0 5 0 1 0 0 0 0 1 0 0 0 0 1<br>
3511 // Number of matched nodes between master and slave surfaces<br>
xx xx <br>
<br>
Hope this clarifies my question better.<br>
<br>
Thanks again for the help<br>
<br>
<br>
On 27/04/2017 7:20 AM, DILASSER Guillaume wrote:<br>
</div>
<blockquote
cite="mid:BDF3E5E1B74E12499732EC24EF50B5D4A94736@E-EXDAGE-A0.extra.cea.fr"
type="cite">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<meta name="Generator" content="Microsoft Word 15 (filtered
medium)">
<style><!--
/* Font Definitions */
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:Tahoma;
panose-1:2 11 6 4 3 5 4 4 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0cm;
margin-bottom:.0001pt;
font-size:12.0pt;
font-family:"Times New Roman",serif;
color:black;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:#0563C1;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:#954F72;
text-decoration:underline;}
span.EmailStyle17
{mso-style-type:personal-reply;
font-family:"Calibri",sans-serif;
color:#1F497D;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;}
@page WordSection1
{size:612.0pt 792.0pt;
margin:70.85pt 70.85pt 70.85pt 70.85pt;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
<div class="WordSection1">
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Hi,<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"
lang="EN-US">Have you looked at the documentation
<a moz-do-not-send="true"
href="http://gmsh.info/doc/texinfo/gmsh.html#MSH-ASCII-file-format">here</a>
? It says :<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:35.4pt"><i><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"
lang="EN-US">$Periodic<o:p></o:p></span></i></p>
<p class="MsoNormal" style="margin-left:35.4pt"><i><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"
lang="EN-US">number-of-periodic-entities<o:p></o:p></span></i></p>
<p class="MsoNormal" style="margin-left:35.4pt"><i><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"
lang="EN-US">dimension slave-entity-tag master-entity-tag<o:p></o:p></span></i></p>
<p class="MsoNormal" style="margin-left:35.4pt"><i><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"
lang="EN-US">number-of-nodes<o:p></o:p></span></i></p>
<p class="MsoNormal" style="margin-left:35.4pt"><i><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"
lang="EN-US">slave-node-number master-node-number<o:p></o:p></span></i></p>
<p class="MsoNormal" style="margin-left:35.4pt"><i><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"
lang="EN-US">…<o:p></o:p></span></i></p>
<p class="MsoNormal" style="margin-left:35.4pt"><i><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"
lang="EN-US">$EndPeriodic<o:p></o:p></span></i></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"
lang="EN-US">It looks like your information.<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"
lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"
lang="EN-US">Faithfully Yours,<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Tahoma",sans-serif;color:#000099">Guillaume
DILASSER</span><span
style="font-size:10.0pt;font-family:"Tahoma",sans-serif;color:#000099"><o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:7.5pt;font-family:"Arial",sans-serif;color:#000099">Doctorant
SACM / LEAS<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:7.5pt;font-family:"Arial",sans-serif;color:#000099">CEA
- Centre de Saclay - Bât.123 - PC 319c</span><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#000099"><o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:7.5pt;font-family:"Arial",sans-serif;color:#000099">91191
Gif sur Yvette Cedex - France -</span><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#000099"><o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:7.5pt;font-family:"Arial",sans-serif;color:#000099"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:7.5pt;font-family:"Arial",sans-serif;color:#000099"><a
moz-do-not-send="true"
href="mailto:guillaume.dilasser@cea.fr"><span
style="color:blue">guillaume.dilasser@cea.fr</span></a><o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><span
lang="EN-US"><o:p></o:p></span></span></p>
<div>
<div style="border:none;border-top:solid #E1E1E1
1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"><b><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:windowtext"
lang="EN-US">De :</span></b><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:windowtext"
lang="EN-US"> gmsh
[<a class="moz-txt-link-freetext" href="mailto:gmsh-bounces@ace20.montefiore.ulg.ac.be">mailto:gmsh-bounces@ace20.montefiore.ulg.ac.be</a>]
<b>De la part de</b> Ranga Sudarsan<br>
<b>Envoyé :</b> jeudi 27 avril 2017 12:56<br>
<b>À :</b> gmsh mailing list <a class="moz-txt-link-rfc2396E" href="mailto:gmsh@onelab.info"><gmsh@onelab.info></a><br>
<b>Objet :</b> [Gmsh] Help understanding MSH file
entries while using "Periodic surface with translate "<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal" style="margin-bottom:12.0pt"><span
lang="EN-US"> </span>Hi there,<br>
I am meshing a geometry with periodic (translated meshes)
boundary conditions along one of the directions (X in my
case). I am using<br>
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.<br>
<br>
Thanks again<br>
Ranga Sudarsan<o:p></o:p></p>
</div>
</blockquote>
<p><br>
</p>
</body>
</html>