Exact Procedure to work with a .geo file on FEniCS (with meshio)?

[dokken]

Hi,
Does this help:

Converting simple 2D mesh from gmsh to dolfin

The code I’ve posted there is for a 3D mesh, however, it generalizes to a 2D mesh. Given this simple geo file // the square Point(1) = {0, 0, 0,0.1}; Point(2) = {0, 1, 0,0.1}; Point(3) = {1, 1, 0,0.1}; Point(4) = {1, 0, 0,0.1}; Line(1) = {1, 4}; Line(2) = {4, 3}; Line(3) = {3, 2}; Line(4) = {2, 1}; // creating the surfaces Line Loop(6) = {2, 3, 4, 1}; Plane Surface(8) = {6}; Physical Surface(2) = {8}; I call gmsh -2 mesh.geo to create the msh file Then using meshio I load the meshio import…