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import tempfile
import helpers
import numpy as np
import meshio
def is_same_mesh(mesh0, mesh1, atol):
if not np.allclose(mesh0.points, mesh1.points, atol=atol, rtol=0.0):
return False
for cells0, cells1 in zip(mesh0.cells, mesh1.cells):
if cells0.type != cells1.type or not np.allclose(cells0.data, cells1.data):
return False
return True
def test_info():
input_mesh = helpers.tri_mesh
infile = tempfile.NamedTemporaryFile().name
meshio.write(infile, input_mesh, file_format="gmsh")
meshio._cli.info([infile, "--input-format", "gmsh"])
def test_convert():
input_mesh = helpers.tri_mesh
infile = tempfile.NamedTemporaryFile().name
meshio.write(infile, input_mesh, file_format="gmsh")
outfile = tempfile.NamedTemporaryFile().name
meshio._cli.convert(
[infile, outfile, "--input-format", "gmsh", "--output-format", "vtk"]
)
mesh = meshio.read(outfile, file_format="vtk")
atol = 1.0e-15
assert np.allclose(input_mesh.points, mesh.points, atol=atol, rtol=0.0)
for cells0, cells1 in zip(input_mesh.cells, mesh.cells):
assert cells0.type == cells1.type
assert np.allclose(cells0.data, cells1.data)
def test_compress():
input_mesh = helpers.tri_mesh
infile = tempfile.NamedTemporaryFile(suffix=".vtu").name
meshio.write(infile, input_mesh)
meshio._cli.decompress([infile])
mesh = meshio.read(infile)
assert is_same_mesh(input_mesh, mesh, atol=1.0e-15)
meshio._cli.compress([infile])
mesh = meshio.read(infile)
assert is_same_mesh(input_mesh, mesh, atol=1.0e-15)
def test_ascii_binary():
input_mesh = helpers.tri_mesh
infile = tempfile.NamedTemporaryFile(suffix=".vtk").name
meshio.write(infile, input_mesh)
meshio._cli.ascii([infile])
mesh = meshio.read(infile)
assert is_same_mesh(input_mesh, mesh, atol=1.0e-15)
meshio._cli.binary([infile])
mesh = meshio.read(infile)
assert is_same_mesh(input_mesh, mesh, atol=1.0e-15)
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