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

[Yves Renard]

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,

Yves


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) 04.72.43.87.08
  INSA-Lyon
  20, rue Albert Einstein
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  http://math.univ-lyon1.fr/~renard

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