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Re: [Getfem-users] How to make region at corner in 3D mesh

From: Yves Renard
Subject: Re: [Getfem-users] How to make region at corner in 3D mesh
Date: Mon, 11 Mar 2019 10:38:14 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.5.1

Dear Tetsuo,

This means that you want to add a fem on an edge of a 3D mesh. For a 3D mesh, you only have access to faces, not directly to edges. And even on faces, you cannot directly define a finite element, except if it is defined as the reduction of a 3D FEM on your faces. So, if you want to define a separate finite element, you have to add the corresponding 1D edges on the mesh. If you just want to select the degrees of freedom of a 3D FEM to reduce it, there is unfortunately no pre-defined function for that (you can of course list the dof and select them by hand).

Best Regards,


Le 11/03/2019 à 07:34, Tetsuo Koyama a écrit :
Dear GetFEM++ Project

Hello. I am trying to make 1D FEM at the corner of 3D regular mesh in C++.

I used getfem::select_faces_of_normal to set region at corner, but it
seems not work.

What is the best way to select the region at corner in 3D mesh?

Best Regard Tetsuo


  Yves Renard (address@hidden)       tel : (33)
  20, rue Albert Einstein
  69621 Villeurbanne Cedex, FRANCE


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