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Fix log transforms (fixes #3809) [back port to 1.4.x] #3863

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Merged
merged 7 commits into from
Dec 9, 2014
Merged

Fix log transforms (fixes #3809) [back port to 1.4.x] #3863

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1c5ee87
Ensure that IdentityTransform always returns an array.
Nov 29, 2014
b5685f4
Ensure that 'points' is an array to avoid errors when indexing (compl…
Nov 29, 2014
9dcc1fa
Even with the fix for single-point transforms (77ccc8230) it's better…
maxalbert Dec 4, 2014
49d2cf1
Add test for log transform.
maxalbert Dec 4, 2014
0fa00ef
Merge upstream master.
maxalbert Dec 4, 2014
7d35c5e
Since most transformation code assumes 2d input, convert the values t…
maxalbert Dec 4, 2014
0b43f83
Support transforming scalars as some routines need this.
maxalbert Dec 4, 2014
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Add test for log transform.
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@maxalbert
maxalbert committed Dec 4, 2014
commit 49d2cf110e80f43ce3bb4c9d46fce6761f0b0216
9 changes: 9 additions & 0 deletions lib/matplotlib/tests/test_transforms.py
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Original file line number Diff line number Diff line change
Expand Up @@ -487,6 +487,15 @@ def test_bbox_as_strings():
assert_equal(eval(format(getattr(b, k), fmt)), v)


@cleanup
def test_log_transform():
# Tests that the last line runs without exception (previously the
# transform would fail if one of the axes was logarithmic).
fig, ax = plt.subplots()
ax.set_yscale('log')
ax.transData.transform((1,1))


if __name__=='__main__':
import nose
nose.runmodule(argv=['-s','--with-doctest'], exit=False)