Hi there! I am new to GMSH and FEniCS. My apologies if the below question is a trivial one. But I tried many of the suggestions listed in the discourse site but nothing seems to work. Need help with this. I am using Dolfin version 2019.2.0 and GMSH 3.0.1. I created a .geo and .msh file in GMSH and…

No, you need to supply the mesh tag as well, i.e.: c=Expression(("0.0", "0.0"),degree=2) uout=DirichletBC(V, c, mf, 1) bc=[uout]

Follow for instance: [image] Different results for the same mesh created differently (Hyperelasticity) mesh Uninstalling and re-installing the h5py resolved the issue: sudo pip3 uninstall h5py pip3 install --no-binary=h5py h5py --user Thanks for the sample code you propo…

Hi dokken! Thanks for your response. I tried the code as suggested, but it’s giving me the following error code: ERROR: Failed building wheel for h5py Failed to build h5py ERROR: Could not build wheels for h5py which use PEP 517 and cannot be installed directly

Have you tried: python - Can't install h5py - Stack Overflow For more specific help, it would help to know more about how you installed dolfin. What system are you using Did you use docker, conda or installed from source? If you simply need a container for converting a gmsh msh file to xdmf, you…

I am using Windows10, 64 bit. I am using the Dolfin that is already installed in my University server and I access it using SSH terminals.

So I guess your university server is Linux based? Then I would suggest trying the stack overflow link above.

Yes, it is Linux based. I tried the link and that did the job. Thank you so much. Now I have a coding problem: My geometry is a 2-D annulus meshed using triangles. While executing the following code import meshio msh = meshio.read(“annulusgeometry.msh”) meshio.write(“mesh.xdmf”, meshio.Mesh(poi…

So since you have a 2D mesh, you should not try to save a mesh with tetrahedrons. You should change the keyword “tetra” to “triangle”, and similarly change “triangle” to “line” in the writing of “mf.xdmf”. I would strongly encourage you to use the following function for writing a mesh given a cell…

The change from “tetra” to “triangles” and “triangles” to “line” solved the problem partially. With this change, the only problem that remains to be solved is that it imports the structure and the mesh from the GMSH but I think it doesn’t import the physical tags for when I apply a traction of 1 uni…

Which version of meshio are you using? The function meshio.get_cells_type exists in meshio 4.0 (using pip3 install meshio you should get 4.3.10)

I am using an older version 3.2.7. Should I do pip3 uninstall meshio pip3 install meshio==4.0

Need help converting GMSH to FEniCS

installation

dokken March 1, 2021, 4:22pm 2

Follow for instance:

i.e.:

pip3 uninstall h5py
pip3 install --no-binary=h5py h5py --user

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Need help converting GMSH to FEniCS

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