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Fix legend color comparisions #10031

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Merged
merged 3 commits into from
Dec 20, 2017
Merged

Fix legend color comparisions #10031

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415cd6a
Fix using .get_color() and friends in labels handling
skirpichev Dec 17, 2017
58a221d
Fix legend color handling
dstansby Dec 17, 2017
df2e51a
Make comparison work with arrays
dstansby Dec 17, 2017
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18 changes: 11 additions & 7 deletions lib/matplotlib/legend.py
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Original file line number Diff line number Diff line change
Expand Up @@ -37,6 +37,7 @@
from matplotlib import docstring
from matplotlib.artist import Artist, allow_rasterization
from matplotlib.cbook import silent_list, is_hashable
import matplotlib.colors as colors
from matplotlib.font_manager import FontProperties
from matplotlib.lines import Line2D
from matplotlib.patches import Patch, Rectangle, Shadow, FancyBboxPatch
Expand Down Expand Up @@ -1339,7 +1340,7 @@ def _get_legend_handles_labels(axs, legend_handler_map=None):
labels = []

def _in_handles(h, l):
# Method to check if we already have a given handle and label.
# Method to check if we already have a given handle and label.
# Consider two handles to be the same if they share a label,
# color, facecolor, and edgecolor.

Expand All @@ -1350,17 +1351,20 @@ def _in_handles(h, l):
if type(f_h) != type(h):
continue
try:
if f_h.get_color() != h.get_color():
if (colors.to_rgba_array(f_h.get_color()) !=
colors.to_rgba_array(h.get_color())).any():
continue
except AttributeError:
pass
try:
if f_h.get_facecolor() != h.get_facecolor():
if (colors.to_rgba_array(f_h.get_facecolor()) !=
colors.to_rgba_array(h.get_facecolor())).any():
continue
except AttributeError:
pass
try:
if f_h.get_edgecolor() != h.get_edgecolor():
if (colors.to_rgba_array(f_h.get_edgecolor()) !=
colors.to_rgba_array(h.get_edgecolor())).any():
continue
except AttributeError:
pass
Expand All @@ -1369,9 +1373,9 @@ def _in_handles(h, l):

for handle in _get_legend_handles(axs, legend_handler_map):
label = handle.get_label()
if (label
and not label.startswith('_')
and not _in_handles(handle, label)):
if (label and
not label.startswith('_') and
not _in_handles(handle, label)):
handles.append(handle)
labels.append(label)
return handles, labels
Expand Down
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