Fontsizes in axes and legend don't get updated

[jankaWIS]

Hi,
Maybe this is related to #14. How do you change fontsize on x and y axes? Or of a legend? I could not find any reference in the docs.
Doing c.ax("myaxis1").set_xlabel('x', fontsize=font_size) does not change anything.
And using c.ax("myaxis1").legend(fontsize=legend_size) somehow scales the entire box and the line length but not the text size.

font_size=18
legend_size=6


# CanD
a = 6
b = 6
c = Canvas(a, b, "cm")

# set font
c.set_font("Arial", size=10)

c.add_axis("myaxis1", Point(2, 2, "cm"), Point(5.5, 5.5, "cm"))
c.ax("myaxis1").plot([1, 2, 3], [1, 2, 3], label='b')
c.ax("myaxis1").plot([1, 2, 3], [1, 1.5, 2], label='o')
# set labels
c.ax("myaxis1").set_ylabel('y')
c.ax("myaxis1").set_xlabel('x', fontsize=font_size)
#legend
c.ax("myaxis1").legend(fontsize=legend_size)

c.show()

Thanks!

[mwshinn]

Thanks for reporting! Unfortunately to control the sizes you have to add them manually. So yes, the same as #14.

[jankaWIS]

Sorry, one more question, why do matplotlib global params not affect this? So for example, setting:

plt.rc('xtick', labelsize=font_size)  # fontsize of the tick labels
plt.rc('ytick', labelsize=font_size)  # fontsize of the tick labels
plt.rc('legend', fontsize=legend_size)  # legend fontsize

[mwshinn]

CanD overrides the global settings. You might be able to change this behaviour for the legend by modifying the "c.localRc" dictionary (for c = Canvas(...)) but I have never tried it. That should act just like matplotlib's plt.RcParams dictionary (the thing the "rc" function modifies).

I forgot to mention, though, for the ticks, you can use c.set_font(size=xxx, ticksize=xxx).

[jankaWIS]

Can you also set the font specifically for only one axis and not globally? Like is there some c.set_font(size=xxx, ticksize=xxx) for a given axis?

[mwshinn]

Unfortunately not, it is currently only global.

[jankaWIS]

Hi @mwshinn , me again, I think it's again related. Say I have two subplots and I want to adjust the font of the y tick labels in only one of them (so global setting is not helpful). I tried this:

c.ax("my_ax").tick_params(axis='y', labelsize=2)

but it has no effect. I tried

for label in c.ax("my_ax").get_yticklabels():
    label.set_fontsize(2)

or

labels = c.ax("my_ax").get_yticklabels()
c.ax("my_ax").set_yticklabels(labels, fontsize=2)

but none of it works. Could you please provide a workaround? Or fix this issue?

Thanks!

[mwshinn]

Currently you can't do this, but if you would like to, you can comment out the code that sets the fonts on the axis tick labels in the "fix_fonts" function in canvas.py. Then you have to set all the tick sizes/fonts manually.

[jankaWIS]

Thanks for the tip. Would it be possible to implement it or at least allow some level of customisation (maybe using kwargs)? Because I currently need it in only one place and setting all the rest manually is a bit of an overhead.

[mwshinn]

If you implement it feel free to submit a PR!