# [Gmsh] restrict field

David Colignon David.Colignon at ulg.ac.be
Mon Mar 15 13:06:22 CET 2010

```On 15/03/10 09:17, Stéphane BLANCHET wrote:
> Hi,
>
> This a simple exemple I used to understand how works this field:
>
>
>
> Point(1)= {0,0,0};
> Point(2)= {1,0,0};
> Point(3)= {1,1,0};
> Point(4)= {0,1,0};
> Point(5)= {0,2,0};
> Point(6)= {1,2,0};
> Line(1) = {1, 2};
> Line(2) = {2, 3};
> Line(3) = {3, 4};
> Line(4) = {4, 1};
> Line(5) = {4, 5};
> Line(6) = {5, 6};
> Line(7) = {6, 3};
> Line Loop(8) = {5, 6, 7, 3};
> Plane Surface(9) = {8};
> Line Loop(10) = {3, 4, 1, 2};
> Plane Surface(11) = {10};
> Extrude {0, 0, 1} {
>   Surface{9, 11};
> }
> Physical Surface(56) = {9, 28, 20, 33, 24};
> Physical Surface(57) = {32};
> Physical Surface(58) = {11, 54, 55, 46, 50};
> Physical Volume(59) = {1};
> Physical Volume(60) = {2};
>
> Field[1] = Restrict;
> Field[1].EdgesList = {6, 19, 14, 23, 7, 5, 13, 15, 3, 18, 16, 27};
> Field[1].FacesList = {24, 9, 28, 33, 20, 32};
> Field[1].RegionsList = {1};
> Background Field = 1;
>
> So, with this field, I want to mesh only the first volume.

Hi Stéphane,

if you want to mesh only the first Volume, just add

Delete { Volume {2} ; }

after the extrusion command, or delete the line

Physical Volume(60) = {2};

the second volume will be meshed, but the 3D mesh will not be saved in
the .msh file

Regards,

Dave

> But every time I click on the "mesh" button, GMsh crashes.
>
> Regards
>
> //Stéphane
>
>
>
>
>
>
> > Date: Sun, 14 Mar 2010 08:45:52 +0100
> > From: David.Colignon at ulg.ac.be
> > To: stephane.blanchet at esstin.uhp-nancy.fr
> > CC: gmsh at geuz.org
> > Subject: Re: [Gmsh] restrict field
> >
> > Hi Stéphane,
> >
> > can you send us your .geo file and a description of the steps you
> follow, so that we can try to reproduce the "crash" ?
> >
> > Regards,
> >
> > Dave
> >
> > --
> > David Colignon, Ph.D.
> > Collaborateur Logistique du F.R.S.-FNRS
> > CÉCI - Consortium des Équipements de Calcul Intensif
> > ACE - Applied & Computational Electromagnetics
> > Institut Montefiore B28
> > Université de Liège
> > 4000 Liège - BELGIQUE
> > Tél: +32 (0)4 366 37 32
> > Fax: +32 (0)4 366 29 10
> > WWW: http://hpc.montefiore.ulg.ac.be/
> > Agenda:
> >
> > On 13/03/10 15:31, Stéphane BLANCHET wrote:
> > >
> > > Hello,
> > >
> > > I would like to know if the field "restrict" really works!
> > > Indeed, every time I try to use this field on simple geometries, Gmsh
> > > crashes!
> > >
> > > Best Regards
> > >
> > >
> > > ---------------
> > >
> > > BLANCHET Stéphane
> > >
> > > Elève-Ingénieur ESSTIN (5 Année)
> > > Option: Mécanique des Fluides et Énergétique
> > >
> > > Tél: 0632224601
> > > Mail: stephane.blanchet at esstin.uhp-nancy.fr
> > >
> > > Ecole Supérieure des Sciences et Technologies de l'Ingénieur de Nancy
> > > Université Henri Poincaré Nancy I
> > > 2, rue Jean Lamour
> > > 54 519 - Vandoeuvre Lès Nancy
> > >
> > >
> > >
> > >
> > >
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