[英]How to install a new font in altair and specifying it in alt.TitleParams
I am wondering if it's possible to install fonts to use in altair to use in alt.TitleParams.我想知道是否可以安装 fonts 以在 altair 中使用以在 alt.TitleParams 中使用。 For this example, without font specified, I get a default font and size.对于这个例子,没有指定字体,我得到一个默认的字体和大小。
import altair as alt
import pandas as pd
source = pd.DataFrame({
'a': ['A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I'],
'b': [28, 55, 43, 91, 81, 53, 19, 87, 52]
})
alt.Chart(source, title = alt.TitleParams(text = 'Example Chart')).mark_bar().encode(
x='a',
y='b'
)
Changing the font size I get the bigger letters:更改字体大小我得到更大的字母:
alt.Chart(source, title = alt.TitleParams(text = 'Example Chart', fontSize=24)).mark_bar().encode(
x='a',
y='b'
)
But, when I add a font style, the size doesn't work anymore:但是,当我添加字体样式时,大小不再起作用:
alt.Chart(source, title = alt.TitleParams(text = 'Example Chart'
, fontSize=24
, fontStyle = 'Arial')).mark_bar().encode(
x='a',
y='b'
)
And the text looks always the same regardless of what font is specified:无论指定什么字体,文本看起来总是一样的:
alt.Chart(source, title = alt.TitleParams(text = 'Example Chart'
, fontSize=24
, fontStyle = 'Calibri')).mark_bar().encode(
x='a',
y='b'
)
Same thing:一样:
I would like to know how I can display the correct font, not only with standard fonts, but with non-standard ones and how to install them.我想知道如何显示正确的字体,不仅是标准的 fonts,还有非标准的字体以及如何安装它们。
fontStyle
refers to the style of the font, such as "bold", "italic", etc. If you want to specify a font by name, use the font
parameter: fontStyle
是指字体的样式,如“粗体”、“斜体”等。如果要通过名称指定字体,使用font
参数:
alt.Chart(
source,
title=alt.TitleParams(
text='Example Chart',
fontSize=24,
fontStyle='italic',
font='Times'
)
).mark_bar().encode(
x='a',
y='b'
)
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