How to import xdmf mesh generated by gmsh into fenics

[dokken]

Please provide the code that you are running (and the mesh, or the scripts that generated the mesh).

@taytay33

Maybe I’m importing the mesh wrongly. Maybe you can help me out how to import the 2d mesh in Fenics with some descriptions?

There are plenty of topics covering this, for instance

Need help converting GMSH to FEniCS

Please use the code I supplied to you above for writing the mesh and markers to xdmf: import meshio msh = meshio.read("name_of_mesh_file.msh") triangle_mesh = create_mesh(msh, "triangle", True) line_mesh = create_mesh(msh, "line", True) meshio.write("mesh.xdmf", triangle_mesh) meshio.write("mf.xdmf", line_mesh) from dolfin import * mesh = Mesh() mvc = MeshValueCollection("size_t", mesh, mesh.topology().dim()) with XDMFFile("mesh.xdmf") as infile: infile.read(mesh) infile.read(mvc, "name…

Transitioning from mesh.xml to mesh.xdmf, from dolfin-convert to meshio

I dont really now how to help you further. If you use the docker to install fenics, and then run the following: docker run -ti --rm -v $(pwd):/home/fenics/shared quay.io/fenicsproject/stable:latest sudo pip install meshio lxml h5py I used gmsh 3.0.6 to generate the msh file. Then running the following script: import meshio msh = meshio.read("file.msh") meshio.write("mesh.xdmf", meshio.Mesh(points=msh.points, cells={"tetra": msh.cells["tetra"]})) meshio.write("mf.xdmf", meshio.Mesh(points=…

and many more