l3 = geom.add_line(p2, p1)
l4 = geom.add_line(p7, p5)
l5 = geom.add_line(p5, p6)
l6 = geom.add_line(p6, p8)
l7 = geom.add_line(p4, p7)
l8 = geom.add_line(p7, p8)
l9 = geom.add_line(p8, p3)
ll1 = geom.add_line_loop(lines=[l2, l3, l1, l7, l4, l5, l6, l9])
ps1 = geom.add_plane_surface(ll1)
ll2 = geom.add_line_loop(lines=[l6, -l8, l4, l5])
ps2 = geom.add_plane_surface(ll2)
# Tag line and surface
geom.add_physical(l3, label="LEFT")
geom.add_physical(l2, label="TOP")
geom.add_physical([l9, l8, l7], label="RIGHT")
geom.add_physical(l1, label="BOTTOM")
geom.add_physical(ps1, label="DOMAIN")
geom.add_physical(ps2, label="OBSTACLE")
#print("\n".join(geom._GMSH_CODE))
msh = generate_mesh(geom)
points, cells, cell_data, boundary = msh.points, msh.cells, msh.cell_data, msh.field_data
mesh = dolfin.cpp.mesh.Mesh(
dolfin.MPI.comm_world,
dolfin.cpp.mesh.CellType.Type.triangle,
mesh_ele_size = .1
p0 = geom.add_point([0, 0, 0], lcar=mesh_ele_size)
p1 = geom.add_point([1, 0, 0], lcar=mesh_ele_size)
p2 = geom.add_point([1, 1, 0], lcar=mesh_ele_size)
p3 = geom.add_point([0, 1, 0], lcar=mesh_ele_size)
l0 = geom.add_line(p0, p1)
l1 = geom.add_line(p1, p2)
l2 = geom.add_line(p2, p3)
l3 = geom.add_line(p3, p0)
ll = geom.add_line_loop(lines=[l0, l1, l2, l3])
ps = geom.add_plane_surface(ll)
# Tag line and surface
geom.add_physical(l3, label="LINE")
geom.add_physical(ps, label="SURFACE")
#print("\n".join(geom._GMSH_CODE))
mesh = generate_mesh(geom)
points, cells, cell_data, boundary = mesh.points, mesh.cells, mesh.cell_data, mesh.field_data
comm = dolfin.MPI.comm_world
rank = comm.Get_rank()
print('My rank is ', rank)
mesh_from_array = dolfin.cpp.mesh.Mesh(dolfin.MPI.comm_world,
dolfin.cpp.mesh.CellType.Type.triangle,
points, cells['triangle'], [],
dolfin.cpp.mesh.GhostMode.none)
mesh_ele_size = .1
p0 = geom.add_point([0, 0, 0], lcar=mesh_ele_size)
p1 = geom.add_point([1, 0, 0], lcar=mesh_ele_size)
p2 = geom.add_point([1, 1, 0], lcar=mesh_ele_size)
p3 = geom.add_point([0, 1, 0], lcar=mesh_ele_size)
l0 = geom.add_line(p0, p1)
l1 = geom.add_line(p1, p2)
l2 = geom.add_line(p2, p3)
l3 = geom.add_line(p3, p0)
ll = geom.add_line_loop(lines=[l0, l1, l2, l3])
ps = geom.add_plane_surface(ll)
# Tag line and surface
geom.add_physical(l3, label=444)
geom.add_physical(ps, label=456)
print("\n".join(geom._GMSH_CODE))
mesh = generate_mesh(geom)
points, cells, cell_data = mesh.points, mesh.cells, mesh.cell_data
meshio.write("input/mesh_2d.xdmf",
meshio.Mesh(points=points, cells={"triangle": cells["triangle"]}))
meshio.write(
"input/mvc_1d.xdmf",
meshio.Mesh(points=points,
cells={"line": cells["line"]},
cell_data={
"line": {
mesh_ele_size = 0.5
p0 = geom.add_point([0, 0, 0], lcar=mesh_ele_size)
p1 = geom.add_point([1, 0, 0], lcar=mesh_ele_size)
p2 = geom.add_point([1, 1, 0], lcar=mesh_ele_size)
p3 = geom.add_point([0, 1, 0], lcar=mesh_ele_size)
l0 = geom.add_line(p0, p1)
l1 = geom.add_line(p1, p2)
l2 = geom.add_line(p2, p3)
l3 = geom.add_line(p3, p0)
ll = geom.add_line_loop(lines=[l0, l1, l2, l3])
ps = geom.add_plane_surface(ll)
# Tag line and surface
geom.add_physical(l0, label="BOTTOM")
geom.add_physical(l1, label="RIGHT")
geom.add_physical(l2, label="TOP")
geom.add_physical(l3, label="LEFT")
geom.add_physical(ps, label="DOMAIN")
# print("\n".join(geom._GMSH_CODE))
mesh = generate_mesh(geom)
points, cells, cell_data, boundary = mesh.points, mesh.cells, mesh.cell_data, mesh.field_data
comm = dolfin.MPI.comm_world
rank = comm.Get_rank()
print('My rank is ', rank)
mesh_from_array = dolfin.cpp.mesh.Mesh(dolfin.MPI.comm_world,
