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Path fast verts bug fix #4008

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Path fast verts bug fix #4008

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b1abc0c
Revert "Merge pull request #3681 from jbmohler/use_fast_from_codes_an…
tacaswell Jan 17, 2015
2dd22ca
PEP8 : pep8 on test code
tacaswell Jan 17, 2015
9e68161
TST : add test for log transform with zero
tacaswell Jan 17, 2015
8b5d6af
use _fast_from_codes_and_verts in transform code
jbmohler Aug 21, 2014
24bdc37
BUG : fix optimized path transforms
tacaswell Jan 17, 2015
c9244df
BUG : Add validation for masked arrays in _revalidate
tacaswell Jan 18, 2015
8d5fb93
DOC/API : removed documented input constraint
tacaswell Jan 18, 2015
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BUG : Add validation for masked arrays in _revalidate 
Ensure that transforms that return masked arrays have the arrays
filled with nan

Improved the code readability.
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@tacaswell
tacaswell committed Jan 18, 2015
commit c9244df82ec781894d6edfec33bdce8a89c15be1
27 changes: 19 additions & 8 deletions lib/matplotlib/transforms.py
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Original file line number Diff line number Diff line change
Expand Up @@ -2615,14 +2615,25 @@ def __init__(self, path, transform):
self._transformed_points = None

def _revalidate(self):
# only recompute if the invalidation includes the non_affine part of the transform
if ((self._invalid & self.INVALID_NON_AFFINE == self.INVALID_NON_AFFINE)
or self._transformed_path is None):
self._transformed_path = \
self._transform.transform_path_non_affine(self._path)
self._transformed_points = \
Path._fast_from_codes_and_verts(self._transform.transform_non_affine(self._path.vertices),
None, {'interpolation_steps': self._path._interpolation_steps})
# only recompute if the invalidation includes
# the non_affine part of the transform
if ((self._invalid &
self.INVALID_NON_AFFINE == self.INVALID_NON_AFFINE)
or self._transformed_path is None):

tpath = self._transform.transform_path_non_affine(self._path)
self._transformed_path = tpath

x = self._transform.transform_non_affine(self._path.vertices)
if ma.isMaskedArray(x):
x = x.astype(np.float_).filled(np.nan)

tpts = Path._fast_from_codes_and_verts(verts=x, codes=None,
internals={'interpolation_steps':
self._path._interpolation_steps})

self._transformed_points = tpts

self._invalid = 0

def get_transformed_points_and_affine(self):
Expand Down