8000 ENH: Add a utility to calculate obliquity of affines by oesteban · Pull Request #815 · nipy/nibabel · GitHub
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ENH: Add a utility to calculate obliquity of affines #815

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Merged
merged 6 commits into from
Oct 15, 2019
Merged

ENH: Add a utility to calculate obliquity of affines #815

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3cfff0d
ENH: Add an utility to calculate obliquity of affines
oesteban Sep 20, 2019
c92d560
enh(tests): add not-oblique test, move tests to ``test_affines.py``
oesteban Sep 20, 2019
da8da56
enh: return radians unless degrees=True
oesteban Sep 22, 2019
253a256
enh: address @matthew-brett's comments
oesteban Sep 23, 2019
04584b6
doc: add link to AFNI's documentation about *obliquity* [skip ci]
oesteban Sep 24, 2019
891d85c
fix: incorrect operation ordering caught by @matthew-brett
oesteban Sep 27, 2019
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fix: incorrect operation ordering caught by @matthew-brett
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@oesteban
oesteban authored Sep 27, 2019
commit 891d85c07b41f4908fb3e9ffb9e89c78883a64eb
2 changes: 1 addition & 1 deletion nibabel/affines.py
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Expand Up @@ -321,5 +321,5 @@ def obliquity(affine):

"""
vs = voxel_sizes(affine)
best_cosines = np.abs((affine[:-1, :-1] / vs).max(axis=1))
best_cosines = np.abs(affine[:-1, :-1] / vs).max(axis=1)
return np.arccos(best_cosines)
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