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Deprecate unused ContourLabeler.get_real_label_width. #9904

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merged 2 commits into from
Dec 2, 2017
Merged

Deprecate unused ContourLabeler.get_real_label_width. #9904

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23664c5
Deprecate unused ContourLabeler.get_real_label_width.
anntzer Dec 1, 2017
df4e623
Some more cleanups.
anntzer Dec 1, 2017
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Some more cleanups.
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@anntzer
anntzer committed Dec 1, 2017
commit df4e62300edda78b05782aee6eb036f3d7f32457
16 changes: 7 additions & 9 deletions lib/matplotlib/contour.py
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Original file line number Diff line number Diff line change
Expand Up @@ -337,8 +337,7 @@ def get_text(self, lev, fmt):

def locate_label(self, linecontour, labelwidth):
"""
Find a good place to plot a label (relatively flat
part of the contour).
Find good place to draw a label (relatively flat part of the contour).
"""

# Number of contour points
Expand All @@ -355,16 +354,15 @@ def locate_label(self, linecontour, labelwidth):
XX = np.resize(linecontour[:, 0], (xsize, ysize))
YY = np.resize(linecontour[:, 1], (xsize, ysize))
# I might have fouled up the following:
yfirst = YY[:, 0].reshape(xsize, 1)
ylast = YY[:, -1].reshape(xsize, 1)
xfirst = XX[:, 0].reshape(xsize, 1)
xlast = XX[:, -1].reshape(xsize, 1)
yfirst = YY[:, :1]
ylast = YY[:, -1:]
xfirst = XX[:, :1]
xlast = XX[:, -1:]
s = (yfirst - YY) * (xlast - xfirst) - (xfirst - XX) * (ylast - yfirst)
L = np.sqrt((xlast - xfirst) ** 2 + (ylast - yfirst) ** 2).ravel()
L = np.hypot(xlast - xfirst, ylast - yfirst)
# Ignore warning that divide by zero throws, as this is a valid option
with np.errstate(divide='ignore', invalid='ignore'):
dist = np.add.reduce([(abs(s)[i] / L[i]) for i in range(xsize)],
-1)
dist = np.sum(np.abs(s) / L, axis=-1)
x, y, ind = self.get_label_coords(dist, XX, YY, ysize, labelwidth)

# There must be a more efficient way...
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