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trafra99 opened this issue May 24, 2021 · 2 comments · Fixed by #20758
Closed

colorbar set_ticklabels - text properties not working #20296

trafra99 opened this issue May 24, 2021 · 2 comments · Fixed by #20758
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topic: color/colorbar
Milestone
v3.5.0

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@trafra99
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trafra99 commented May 24, 2021 •
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Bug report

Bug summary

Unable to set label color or other text properties

Code for reproduction

from mpl_toolkits.axes_grid1.inset_locator import inset_axes

fig, ax = plt.subplots(figsize=(5,6),dpi=200)

#hiding the axis numbers
ax.axes.xaxis.set_visible(False)
ax.axes.yaxis.set_visible(False)

#setting the axis dimensions
ax.set_xlim((-250, 250))
ax.set_ylim((422.5, -47.5))

#setting the background color as black ('k') for a better visualization
ax.set_facecolor('k')
fig.set_facecolor('k')

cbaxes = inset_axes(ax, width="5%",  
               height="50%", 
               loc='lower left',
               bbox_to_anchor=(.7, 0.07, 5, .08),
               bbox_transform=ax.transAxes,
               borderpad=0,
               )
bar_palette = mpl.cm.inferno
bar = mpl.colorbar.ColorbarBase(cbaxes, cmap=bar_palette, orientation='horizontal')

# creating ticks 
bar.set_ticks([0,1])
bar.set_ticklabels(ticklabels=['Low', 'High'], color='white')

Actual outcome
TypeError: set_ticklabels() got an unexpected keyword argument 'color'

Expected outcome
I need the labels to be white because the background is black
IMPORTANT
If you put 'white' instead of 'k' in ax.set_facecolor('k') and remove color='white' from bar.set_ticklabels
you can see that the labels are properly created, but they are black and apparently there is no way to make them
change.

Matplotlib version

  • Operating system: Mac OS Big Sur
  • Matplotlib version: 3.4.0
  • Matplotlib backend : module://ipykernel.pylab.backend_inline
  • Python version: 3.9.2

Thanks to anyone who can help!
@jklymak jklymak changed the title set_ticklabels - text properties not working colorbar set_ticklabels - text properties not working May 24, 2021
@jklymak
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jklymak commented May 24, 2021

Yes, set_ticklabels should probably pass kwargs down to the base axes. #20054 is meant to make this easier, though this particular case has not been addressed yet.

In the meantime, you can do bar.ax.xaxis.set_ticklabels(...) and it will work as you expect.

As an aside, you might consider the core:

cbaxes = ax.inset_axes([0.7, -0.075, 0.3, 0.03]) 
bar = fig.colorbar(mappable, cax=cbaxes)

though perhaps you do not have a mappable?

@jklymak jklymak mentioned this issue May 24, 2021
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@trafra99
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Yes, set_ticklabels should probably pass kwargs down to the base axes. #20054 is meant to make this easier, though this particular case has not been addressed yet.

In the meantime, you can do bar.ax.xaxis.set_ticklabels(...) and it will work as you expect.

As an aside, you might consider the core:

cbaxes = ax.inset_axes([0.7, -0.075, 0.3, 0.03]) 
bar = fig.colorbar(mappable, cax=cbaxes)

though perhaps you do not have a mappable?

Thanks for the reply! Unfortunately I do not have a mappable, I'll stick to your solution, it works as a charm.

@jklymak jklymak mentioned this issue Jul 28, 2021
Merged
@QuLogic QuLogic added this to the v3.5.0 milestone Jul 29, 2021
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topic: color/colorbar
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@QuLogic @jklymak @trafra99