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Add a colorblind friendly heatmap. #2871

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Merged
merged 5 commits into from
May 3, 2014
Merged

Add a colorblind friendly heatmap. #2871

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0a1b153
Add a colorblind friendly heatmap.
chebee7i Mar 5, 2014
ab31305
Update 'wistia' colormap.
chebee7i Apr 29, 2014
d18f07d
Comments. Add entry to CHANGELOG and whats_new.rst.
chebee7i May 2, 2014
5cae0f9
Removing unnecessary import in _cm.py
chebee7i May 2, 2014
28ef5f5
Minor cosmetics (tabs, alignment) to CHANGELOG.
chebee7i May 2, 2014
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Update 'wistia' colormap.
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@chebee7i
chebee7i committed May 2, 2014
commit ab31305aaedaa804350ee546abec0fa50639b7cd
32 changes: 17 additions & 15 deletions lib/matplotlib/_cm.py
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Original file line number Diff line number Diff line change
Expand Up @@ -7,6 +7,8 @@

from __future__ import (absolute_import, division, print_function,
unicode_literals)

import matplotlib.colors
import numpy as np

_binary_data = {
Expand Down Expand Up @@ -1890,31 +1892,31 @@ def gfunc32(x):


# A color-blind-friendly heatmap from Wistia:
# https://github.com/wistia/heatmap-palette
# http://wistia.com/blog/heatmaps-for-colorblindness
#
# >>> import matplotlib.colors as c
# >>> colors = np.array([[228,255,122], [254,232,25], [250,190,6],
# ... [255,159,0], [252,127,0]], dtype=float) / 255
# ...
# >>> cm = col.LinearSegmentedColormap.from_list('wistia', colors)
# >>> colors = ["#e4ff7a", "#ffe81a", "#ffbd00", "#ffa000", "#fc7f00"]
# >>> cm = c.LinearSegmentedColormap.from_list('wistia', colors)
# >>> _wistia_data = cm._segmentdata
# >>> del _wistia_data['alpha']
#
_wistia_data = {
'red': [(0.0, 0.89411764705882357, 0.89411764705882357),
(0.25, 0.99607843137254903, 0.99607843137254903),
(0.5, 0.98039215686274506, 0.98039215686274506),
'red': [(0.0, 0.8941176470588236, 0.8941176470588236),
(0.25, 1.0, 1.0),
(0.5, 1.0, 1.0),
(0.75, 1.0, 1.0),
(1.0, 0.9882352941176471, 0.9882352941176471)],
'green': [(0.0, 1.0, 1.0),
(0.25, 0.90980392156862744, 0.90980392156862744),
(0.5, 0.74509803921568629, 0.74509803921568629),
(0.75, 0.62352941176470589, 0.62352941176470589),
(1.0, 0.49803921568627452, 0.49803921568627452)],
(0.25, 0.9098039215686274, 0.9098039215686274),
(0.5, 0.7411764705882353, 0.7411764705882353),
(0.75, 0.6274509803921569, 0.6274509803921569),
(1.0, 0.4980392156862745, 0.4980392156862745)],
'blue': [(0.0, 0.47843137254901963, 0.47843137254901963),
(0.25, 0.098039215686274508, 0.098039215686274508),
(0.5, 0.023529411764705882, 0.023529411764705882),
(0.25, 0.10196078431372549, 0.10196078431372549),
(0.5, 0.0, 0.0),
(0.75, 0.0, 0.0),
(1.0, 0.0, 0.0)]
(1.0, 0.0, 0.0)],
}


Expand Down Expand Up @@ -1993,4 +1995,4 @@ def gfunc32(x):
datad['gist_stern'] = _gist_stern_data
datad['gist_yarg'] = _gist_yarg_data
datad['coolwarm'] = _coolwarm_data
datad['wistia'] = _wistia_data
datad['Wistia'] = _wistia_data