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Merged
merged 4 commits into from
Apr 30, 2020
Merged

adds turbo colormap #15275

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d8884d5
adding turbo colormap
mikhailov-work Sep 16, 2019
34d64b5
removing tab evil
mikhailov-work Sep 16, 2019
ed08a91
fixing formatting issues
mikhailov-work Sep 16, 2019
f6ca3af
- adding a newline to colormaps.py
mikhailov-work Sep 16, 2019
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3 changes: 2 additions & 1 deletion examples/color/colormap_reference.py
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Original file line number Diff line number Diff line change
Expand Up @@ -37,7 +37,8 @@
('Miscellaneous', [
'flag', 'prism', 'ocean', 'gist_earth', 'terrain', 'gist_stern',
'gnuplot', 'gnuplot2', 'CMRmap', 'cubehelix', 'brg',
'gist_rainbow', 'rainbow', 'jet', 'nipy_spectral', 'gist_ncar'])]
'gist_rainbow', 'rainbow', 'jet', 'turbo', 'nipy_spectral',
'gist_ncar'])]


gradient = np.linspace(0, 1, 256)
Expand Down
258 changes: 258 additions & 0 deletions lib/matplotlib/_cm_listed.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1800,6 +1800,263 @@
_twilight_shifted_data = (_twilight_data[len(_twilight_data)//2:] +
_twilight_data[:len(_twilight_data)//2])
_twilight_shifted_data.reverse()
_turbo_data = [[0.18995, 0.07176, 0.23217],
[0.19483, 0.08339, 0.26149],
[0.19956, 0.09498, 0.29024],
[0.20415, 0.10652, 0.31844],
[0.20860, 0.11802, 0.34607],
[0.21291, 0.12947, 0.37314],
[0.21708, 0.14087, 0.39964],
[0.22111, 0.15223, 0.42558],
[0.22500, 0.16354, 0.45096],
[0.22875, 0.17481, 0.47578],
[0.23236, 0.18603, 0.50004],
[0.23582, 0.19720, 0.52373],
[0.23915, 0.20833, 0.54686],
[0.24234, 0.21941, 0.56942],
[0.24539, 0.23044, 0.59142],
[0.24830, 0.24143, 0.61286],
[0.25107, 0.25237, 0.63374],
[0.25369, 0.26327, 0.65406],
[0.25618, 0.27412, 0.67381],
[0.25853, 0.28492, 0.69300],
[0.26074, 0.29568, 0.71162],
[0.26280, 0.30639, 0.72968],
[0.26473, 0.31706, 0.74718],
[0.26652, 0.32768, 0.76412],
[0.26816, 0.33825, 0.78050],
[0.26967, 0.34878, 0.79631],
[0.27103, 0.35926, 0.81156],
[0.27226, 0.36970, 0.82624],
[0.27334, 0.38008, 0.84037],
[0.27429, 0.39043, 0.85393],
[0.27509, 0.40072, 0.86692],
[0.27576, 0.41097, 0.87936],
[0.27628, 0.42118, 0.89123],
[0.27667, 0.43134, 0.90254],
[0.27691, 0.44145, 0.91328],
[0.27701, 0.45152, 0.92347],
[0.27698, 0.46153, 0.93309],
[0.27680, 0.47151, 0.94214],
[0.27648, 0.48144, 0.95064],
[0.27603, 0.49132, 0.95857],
[0.27543, 0.50115, 0.96594],
[0.27469, 0.51094, 0.97275],
[0.27381, 0.52069, 0.97899],
[0.27273, 0.53040, 0.98461],
[0.27106, 0.54015, 0.98930],
[0.26878, 0.54995, 0.99303],
[0.26592, 0.55979, 0.99583],
[0.26252, 0.56967, 0.99773],
[0.25862, 0.57958, 0.99876],
[0.25425, 0.58950, 0.99896],
[0.24946, 0.59943, 0.99835],
[0.24427, 0.60937, 0.99697],
[0.23874, 0.61931, 0.99485],
[0.23288, 0.62923, 0.99202],
[0.22676, 0.63913, 0.98851],
[0.22039, 0.64901, 0.98436],
[0.21382, 0.65886, 0.97959],
[0.20708, 0.66866, 0.97423],
[0.20021, 0.67842, 0.96833],
[0.19326, 0.68812, 0.96190],
[0.18625, 0.69775, 0.95498],
[0.17923, 0.70732, 0.94761],
[0.17223, 0.71680, 0.93981],
[0.16529, 0.72620, 0.93161],
[0.15844, 0.73551, 0.92305],
[0.15173, 0.74472, 0.91416],
[0.14519, 0.75381, 0.90496],
[0.13886, 0.76279, 0.89550],
[0.13278, 0.77165, 0.88580],
[0.12698, 0.78037, 0.87590],
[0.12151, 0.78896, 0.86581],
[0.11639, 0.79740, 0.85559],
[0.11167, 0.80569, 0.84525],
[0.10738, 0.81381, 0.83484],
[0.10357, 0.82177, 0.82437],
[0.10026, 0.82955, 0.81389],
[0.09750, 0.83714, 0.80342],
[0.09532, 0.84455, 0.79299],
[0.09377, 0.85175, 0.78264],
[0.09287, 0.85875, 0.77240],
[0.09267, 0.86554, 0.76230],
[0.09320, 0.87211, 0.75237],
[0.09451, 0.87844, 0.74265],
[0.09662, 0.88454, 0.73316],
[0.09958, 0.89040, 0.72393],
[0.10342, 0.89600, 0.71500],
[0.10815, 0.90142, 0.70599],
[0.11374, 0.90673, 0.69651],
[0.12014, 0.91193, 0.68660],
[0.12733, 0.91701, 0.67627],
[0.13526, 0.92197, 0.66556],
[0.14391, 0.92680, 0.65448],
[0.15323, 0.93151, 0.64308],
[0.16319, 0.93609, 0.63137],
[0.17377, 0.94053, 0.61938],
[0.18491, 0.94484, 0.60713],
[0.19659, 0.94901, 0.59466],
[0.20877, 0.95304, 0.58199],
[0.22142, 0.95692, 0.56914],
[0.23449, 0.96065, 0.55614],
[0.24797, 0.96423, 0.54303],
[0.26180, 0.96765, 0.52981],
[0.27597, 0.97092, 0.51653],
[0.29042, 0.97403, 0.50321],
[0.30513, 0.97697, 0.48987],
[0.32006, 0.97974, 0.47654],
[0.33517, 0.98234, 0.46325],
[0.35043, 0.98477, 0.45002],
[0.36581, 0.98702, 0.43688],
[0.38127, 0.98909, 0.42386],
[0.39678, 0.99098, 0.41098],
[0.41229, 0.99268, 0.39826],
[0.42778, 0.99419, 0.38575],
[0.44321, 0.99551, 0.37345],
[0.45854, 0.99663, 0.36140],
[0.47375, 0.99755, 0.34963],
[0.48879, 0.99828, 0.33816],
[0.50362, 0.99879, 0.32701],
[0.51822, 0.99910, 0.31622],
[0.53255, 0.99919, 0.30581],
[0.54658, 0.99907, 0.29581],
[0.56026, 0.99873, 0.28623],
[0.57357, 0.99817, 0.27712],
[0.58646, 0.99739, 0.26849],
[0.59891, 0.99638, 0.26038],
[0.61088, 0.99514, 0.25280],
[0.62233, 0.99366, 0.24579],
[0.63323, 0.99195, 0.23937],
[0.64362, 0.98999, 0.23356],
[0.65394, 0.98775, 0.22835],
[0.66428, 0.98524, 0.22370],
[0.67462, 0.98246, 0.21960],
[0.68494, 0.97941, 0.21602],
[0.69525, 0.97610, 0.21294],
[0.70553, 0.97255, 0.21032],
[0.71577, 0.96875, 0.20815],
[0.72596, 0.96470, 0.20640],
[0.73610, 0.96043, 0.20504],
[0.74617, 0.95593, 0.20406],
[0.75617, 0.95121, 0.20343],
[0.76608, 0.94627, 0.20311],
[0.77591, 0.94113, 0.20310],
[0.78563, 0.93579, 0.20336],
[0.79524, 0.93025, 0.20386],
[0.80473, 0.92452, 0.20459],
[0.81410, 0.91861, 0.20552],
[0.82333, 0.91253, 0.20663],
[0.83241, 0.90627, 0.20788],
[0.84133, 0.89986, 0.20926],
[0.85010, 0.89328, 0.21074],
[0.85868, 0.88655, 0.21230],
[0.86709, 0.87968, 0.21391],
[0.87530, 0.87267, 0.21555],
[0.88331, 0.86553, 0.21719],
[0.89112, 0.85826, 0.21880],
[0.89870, 0.85087, 0.22038],
[0.90605, 0.84337, 0.22188],
[0.91317, 0.83576, 0.22328],
[0.92004, 0.82806, 0.22456],
[0.92666, 0.82025, 0.22570],
[0.93301, 0.81236, 0.22667],
[0.93909, 0.80439, 0.22744],
[0.94489, 0.79634, 0.22800],
[0.95039, 0.78823, 0.22831],
[0.95560, 0.78005, 0.22836],
[0.96049, 0.77181, 0.22811],
[0.96507, 0.76352, 0.22754],
[0.96931, 0.75519, 0.22663],
[0.97323, 0.74682, 0.22536],
[0.97679, 0.73842, 0.22369],
[0.98000, 0.73000, 0.22161],
[0.98289, 0.72140, 0.21918],
[0.98549, 0.71250, 0.21650],
[0.98781, 0.70330, 0.21358],
[0.98986, 0.69382, 0.21043],
[0.99163, 0.68408, 0.20706],
[0.99314, 0.67408, 0.20348],
[0.99438, 0.66386, 0.19971],
[0.99535, 0.65341, 0.19577],
[0.99607, 0.64277, 0.19165],
[0.99654, 0.63193, 0.18738],
[0.99675, 0.62093, 0.18297],
[0.99672, 0.60977, 0.17842],
[0.99644, 0.59846, 0.17376],
[0.99593, 0.58703, 0.16899],
[0.99517, 0.57549, 0.16412],
[0.99419, 0.56386, 0.15918],
[0.99297, 0.55214, 0.15417],
[0.99153, 0.54036, 0.14910],
[0.98987, 0.52854, 0.14398],
[0.98799, 0.51667, 0.13883],
[0.98590, 0.50479, 0.13367],
[0.98360, 0.49291, 0.12849],
[0.98108, 0.48104, 0.12332],
[0.97837, 0.46920, 0.11817],
[0.97545, 0.45740, 0.11305],
[0.97234, 0.44565, 0.10797],
[0.96904, 0.43399, 0.10294],
[0.96555, 0.42241, 0.09798],
[0.96187, 0.41093, 0.09310],
[0.95801, 0.39958, 0.08831],
[0.95398, 0.38836, 0.08362],
[0.94977, 0.37729, 0.07905],
[0.94538, 0.36638, 0.07461],
[0.94084, 0.35566, 0.07031],
[0.93612, 0.34513, 0.06616],
[0.93125, 0.33482, 0.06218],
[0.92623, 0.32473, 0.05837],
[0.92105, 0.31489, 0.05475],
[0.91572, 0.30530, 0.05134],
[0.91024, 0.29599, 0.04814],
[0.90463, 0.28696, 0.04516],
[0.89888, 0.27824, 0.04243],
[0.89298, 0.26981, 0.03993],
[0.88691, 0.26152, 0.03753],
[0.88066, 0.25334, 0.03521],
[0.87422, 0.24526, 0.03297],
[0.86760, 0.23730, 0.03082],
[0.86079, 0.22945, 0.02875],
[0.85380, 0.22170, 0.02677],
[0.84662, 0.21407, 0.02487],
[0.83926, 0.20654, 0.02305],
[0.83172, 0.19912, 0.02131],
[0.82399, 0.19182, 0.01966],
[0.81608, 0.18462, 0.01809],
[0.80799, 0.17753, 0.01660],
[0.79971, 0.17055, 0.01520],
[0.79125, 0.16368, 0.01387],
[0.78260, 0.15693, 0.01264],
[0.77377, 0.15028, 0.01148],
[0.76476, 0.14374, 0.01041],
[0.75556, 0.13731, 0.00942],
[0.74617, 0.13098, 0.00851],
[0.73661, 0.12477, 0.00769],
[0.72686, 0.11867, 0.00695],
[0.71692, 0.11268, 0.00629],
[0.70680, 0.10680, 0.00571],
[0.69650, 0.10102, 0.00522],
[0.68602, 0.09536, 0.00481],
[0.67535, 0.08980, 0.00449],
[0.66449, 0.08436, 0.00424],
[0.65345, 0.07902, 0.00408],
[0.64223, 0.07380, 0.00401],
[0.63082, 0.06868, 0.00401],
[0.61923, 0.06367, 0.00410],
[0.60746, 0.05878, 0.00427],
[0.59550, 0.05399, 0.00453],
[0.58336, 0.04931, 0.00486],
[0.57103, 0.04474, 0.00529],
[0.55852, 0.04028, 0.00579],
[0.54583, 0.03593, 0.00638],
[0.53295, 0.03169, 0.00705],
[0.51989, 0.02756, 0.00780],
[0.50664, 0.02354, 0.00863],
[0.49321, 0.01963, 0.00955],
[0.47960, 0.01583, 0.01055]]


cmaps = {
name: ListedColormap(data, name=name) for name, data in [
Expand All @@ -1810,4 +2067,5 @@
('cividis', _cividis_data),
('twilight', _twilight_data),
('twilight_shifted', _twilight_shifted_data),
('turbo', _turbo_data),
]}
3 changes: 3 additions & 0 deletions lib/matplotlib/pyplot.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1915,6 +1915,9 @@ def colormaps():
originally from the Neuroimaging in Python project
terrain mapmaker's colors, blue-green-yellow-brown-white,
originally from IGOR Pro
turbo Spectral map (purple-blue-green-yellow-orange-red) with
a bright center and darker endpoints. A smoother
alternative to jet.
============= =======================================================

The following colormaps are redundant and may be removed in future
Expand Down
13 changes: 8 additions & 5 deletions tutorials/colors/colormaps.py
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Original file line number Diff line number Diff line change
Expand Up @@ -179,17 +179,19 @@
# gist_earth and terrain. CMRmap was created to convert well to
# grayscale, though it does appear to have some small kinks in
# :math:`L^*`. cubehelix was created to vary smoothly in both lightness
# and hue, but appears to have a small hump in the green hue area.
# and hue, but appears to have a small hump in the green hue area. turbo
# was created to display depth and disparity data.
#
# The often-used jet colormap is included in this set of colormaps. We can see
# that the :math:`L^*` values vary widely throughout the colormap, making it a
# poor choice for representing data for viewers to see perceptually. See an
# extension on this idea at [mycarta-jet]_.
# extension on this idea at [mycarta-jet]_ and [turbo]_.

cmaps['Miscellaneous'] = [
'flag', 'prism', 'ocean', 'gist_earth', 'terrain', 'gist_stern',
'gnuplot', 'gnuplot2', 'CMRmap', 'cubehelix', 'brg',
'gist_rainbow', 'rainbow', 'jet', 'nipy_spectral', 'gist_ncar']
'gist_rainbow', 'rainbow', 'jet', 'turbo', 'nipy_spectral',
'gist_ncar']

###############################################################################
# .. _color-colormaps_reference:
Expand Down Expand Up @@ -348,8 +350,8 @@ def plot_color_gradients(cmap_category, cmap_list, nrows):
# overlaid, labeled contours could help differentiate between one side of the
# colormap vs. the other since color cannot be used once a plot is printed to
# grayscale. Many of the Qualitative and Miscellaneous colormaps, such as
# Accent, hsv, and jet, change from darker to lighter and back to darker gray
# throughout the colormap. This would make it impossible for a viewer to
# Accent, hsv, jet and turbo, change from darker to lighter and back to darker
# grey throughout the colormap. This would make it impossible for a viewer to
# interpret the information in a plot once it is printed in grayscale.

mpl.rcParams.update({'font.size': 14})
Expand Down Expand Up @@ -422,3 +424,4 @@ def plot_color_gradients(cmap_category, cmap_list):
# .. [colorblindness] http://www.color-blindness.com/
# .. [IBM] https://doi.org/10.1109/VISUAL.1995.480803
# .. [palettable] https://jiffyclub.github.io/palettable/
# .. [turbo] https://ai.googleblog.com/2019/08/turbo-improved-rainbow-colormap-for.html