Tick label fontsize

when i set the axes_class=AxesZero,i can’t change the fontsize of the tick label,i try use some way:

  1. ax.set_xticklabels(xlabels, fontsize=27)
  2. ax.tick_params(fontsize=27)
  3. plt.xticks(fontsize= )
  4. plt.setp(ax.get_xticklabels(), fontsize=)
    but all don’t work,so can any know why,and how to fix it,i will very appreciate!

The objects in mpl_toolkits (e.g. mpl_toolkits.axisartist.axislines.AxesZero — Matplotlib 3.5.1 documentation) have a different core API than the rest of Matplotlib but because it inherent from the base Axes has some unused attributes and methods. There has been an on-going but very slow process of standardizing these classes / pulling the most useful features into the core library.

To get access to the actual axis objects that are draw you want to do

import matplotlib.pyplot as plt
from mpl_toolkits.axisartist import AxesZero

fig, ax = plt.subplots(subplot_kw=dict(axes_class=AxesZero))

xaxis = ax.axis["bottom"]

Which is an instance of mpl_toolkits.axisartist.axis_artist.AxisArtist — Matplotlib 3.5.1 documentation however on a quick skim of the docs I do not see how to change the font size of the tick labels. Hopefully this at least points you in the right direction!