Alter font-size of colorbar tick-labels

[physkets]

I’m plotting a hist2d and a colorbar along with it, like so:

IM = AXES.hist2d(...)
FIG.colorbar(IM[3], ax=AXES)

How do I control the font-size of the labels of the ticks on the color-bar?

This is the only relevant discussion I could find, but how do I do that for a hist2d?

set font properties for colorbar

When cax is an axes instance of the colorbar, you may use cax.tick_params(labelsize=8) If you want to directly set the FontProperties, you need to iterate over the ticks (it seems that tick_params does not support this). for tick in cax.yaxis.majorTicks:     tick.label2.set_fontproperties(fp) Note that the details depends on the current colorbar setup (orientation etc.). The bottom line is that cax can be treated as a normal axes. -JJ

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On Fri, Nov 19, 2010 at 9:30 AM, John <washak…

[jklymak]

A colorbar is a colorbar so that advice applies to your colorbar. Just return the cbar object when you call fig.colorbar

[physkets]

Well, that post talks about a colorbar axis. How do I extract that from a colorbar object? Because this doesn’t work:

CBAR = FIG.colorbar(IM[3], ax=AXES)
CBAR.tick_params(labelsize=8)

It says:

AttributeError: 'Colorbar' object has no attribute 'tick_params'

[jklymak]

From our docs: https://matplotlib.org/gallery/ticks_and_spines/colorbar_tick_labelling_demo.html