|From:||Lesage,Anne Cecile J|
|Subject:||RE: point numbering when reading two meshes|
|Date:||Tue, 23 Nov 2021 23:11:00 +0000|
Sorry the problem was not with node numbering
Correct me if I am wrong but my conclusion is that you shall respect the following ruke
“When you give getfem a list of pointid to impose a boundary conditions, make sure that the set of points defines faces”
There were only disconnected surface points in my list
I am reading two meshes in a python script for getfem
The I want to select points for Dirichlet boundary conditions with a list that I am reading from files
# selection of faces for dirichlet boundary condition
DUB = 1 # dirichlet on displacement brain
DPBI = 2 # dirichlet on displacement non homogeneous
DUH = 3
print('Read DIRICHLET boundary condition brainstem');
# read dirichlet conditions bstem
filebstem = open('bstem.txt', 'r') # 'r' = read
pidbstem = np.loadtxt(filebstem,dtype=int)
print('Read DIRICHLET boundary condition head fix\n');
# read dirichlet conditions on dipslacement
filehead = open('headdir.txt', 'r') # 'r' = read
pidhead = np.loadtxt(filehead,dtype=int)
the file I read consider that for each mesh part the numbering starts from 1
I can observe that the point selection is working well for the first mesh
However it does not work for the second mesh
I think this is because getfem renumbers the nodes of the 2nd mesh.
How can I be sure how it is done?
The first mesh here has 3647 nodes. Does getfem start numbering the points of the second mesh at 3648?
Do I just need to edit my second list and add 3647?
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