def test_fs_xfm():
"""Test reading and writing of Freesurfer transforms."""
for subject in ('fsaverage', 'sample'):
fname = op.join(data_path, 'subjects', subject, 'mri', 'transforms',
'talairach.xfm')
xfm, kind = _read_fs_xfm(fname)
if subject == 'fsaverage':
assert_allclose(xfm, np.eye(4), atol=1e-5) # fsaverage is in MNI
assert kind == 'MNI Transform File'
tempdir = _TempDir()
fname_out = op.join(tempdir, 'out.xfm')
_write_fs_xfm(fname_out, xfm, kind)
xfm_read, kind_read = _read_fs_xfm(fname_out)
assert kind_read == kind
assert_allclose(xfm, xfm_read, rtol=1e-5, atol=1e-5)
# Some wacky one
xfm[:3] = np.random.RandomState(0).randn(3, 4)
_write_fs_xfm(fname_out, xfm, 'foo')
xfm_read, kind_read = _read_fs_xfm(fname_out)
assert kind_read == 'foo'
assert_allclose(xfm, xfm_read, rtol=1e-5, atol=1e-5)
# degenerate conditions
with open(fname_out, 'w') as fid:
fid.write('foo')
with pytest.raises(ValueError, match='Failed to find'):
_read_fs_xfm(fname_out)
_write_fs_xfm(fname_out, xfm[:2], 'foo')
with pytest.raises(ValueError, match='Could not find'):
_read_fs_xfm(fname_out)
def test_fs_xfm():
"""Test reading and writing of Freesurfer transforms."""
for subject in ('fsaverage', 'sample'):
fname = op.join(data_path, 'subjects', subject, 'mri', 'transforms',
'talairach.xfm')
xfm, kind = _read_fs_xfm(fname)
if subject == 'fsaverage':
assert_allclose(xfm, np.eye(4), atol=1e-5) # fsaverage is in MNI
assert kind == 'MNI Transform File'
tempdir = _TempDir()
fname_out = op.join(tempdir, 'out.xfm')
_write_fs_xfm(fname_out, xfm, kind)
xfm_read, kind_read = _read_fs_xfm(fname_out)
assert kind_read == kind
assert_allclose(xfm, xfm_read, rtol=1e-5, atol=1e-5)
# Some wacky one
xfm[:3] = np.random.RandomState(0).randn(3, 4)
_write_fs_xfm(fname_out, xfm, 'foo')
xfm_read, kind_read = _read_fs_xfm(fname_out)
assert kind_read == 'foo'
assert_allclose(xfm, xfm_read, rtol=1e-5, atol=1e-5)
# degenerate conditions
with open(fname_out, 'w') as fid:
fid.write('foo')
with pytest.raises(ValueError, match='Failed to find'):
_read_fs_xfm(fname_out)
_write_fs_xfm(fname_out, xfm[:2], 'foo')
with pytest.raises(ValueError, match='Could not find'):
_read_fs_xfm(fname_out)