Hiragana charachters in Matplotlib

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1

I am trying to render Hiragana letters in my plot, but i keep getting a warning that the glyph cannot be found.

RuntimeWarning: Glyph 12367 missing from current font.font.set_text(s, 0, flags=flags)

I tried to set the font to Arial but it still does not work, even thought it is rendered properly in HTML.

immagine
immagine632×770 34.7 KB

I don’t understand why Matplotlip is not rendering the characters, even thought they are supposed to be there for Arial.

2

Actually if you use e.g. Chrome’s “inspect” functionality you should see that Chrome had to use a separate font to render the hiragana – on my computer, it’s WenQuanYi Zen Hei:
test
Unfortunately we don’t support this kind of auto-substitution yet, see e.g. https://github.com/matplotlib/matplotlib/issues/18883.

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3

Thanks, in my case it was “Microsoft YaHei”. Switching to it did the trick for me.

plt.rcParams['font.sans-serif'] = "Microsoft YaHei"
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4

https://matplotlib.org/tutorials/text/text_props.html#text-with-non-latin-glyphs may be a useful reference for how to find the correct font.