Converting simple 2D mesh from gmsh to dolfin

[dokken]

There are many posts that illustrate it, for instance

@freya

mesh=dolfin.Mesh()
with dolfin.XDMFFile("mesh.xdmf") as infile:
    infile.read(mesh)

And

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

This can be done using meshio and writing the explicit data to xdmf file. import meshio msh = meshio.read("test.msh") meshio.write("mesh.xdmf", meshio.Mesh(points=msh.points, cells={"tetra": msh.cells["tetra"]})) meshio.write("mf.xdmf", meshio.Mesh(points=msh.points, cells={"triangle": msh.cells["triangle"]}, cell_data={"triangle": {"name_to_read": msh.cell_data["triangle"]["gmsh:physical"]}})) from dolfin import * mesh = Mesh() with XDMFFile("mesh.xdmf") …