Question

在本地matplotlib中使用自定义字体需要将.ttf s存储在matplotlib/mpl-data/fonts/ttf/文件夹中，然后调用mpl.font_manager._rebuild()，然后设置mpl.rcParams['font.sans-serif']。

在Google Colaboratory中，似乎无法访问此ttf文件夹吗？

例如，我想使用Roboto font。安装后，将使用mpl.rcParams['font.sans-serif'] = 'Roboto'调用它。

Answer 1

ttf文件夹在这里：

/usr/local/lib/python3.6/dist-packages/matplotlib/mpl-data/fonts/ttf

因此，您要在此处下载ttf，例如：

!wget https://github.com/Phonbopit/sarabun-webfont/raw/master/fonts/thsarabunnew-webfont.ttf -P /usr/local/lib/python3.6/dist-packages/matplotlib/mpl-data/fonts/ttf

matplotlib.font_manager._rebuild()
matplotlib.rc('font', family='TH Sarabun New')

Answer 2

想要添加一个当前有效的完整、简洁的答案。

# Download fonts of choice. Here we download Open Sans variants to
# the current directory.
# It's not necessary to download to the share or matplotlib folders:
# /usr/share/fonts/truetype
# /usr/local/lib/python3.6/dist-packages/matplotlib/mpl-data/fonts/ttf
!wget 'https://github.com/google/fonts/raw/master/apache/opensans/OpenSans-Regular.ttf'
!wget 'https://github.com/google/fonts/raw/master/apache/opensans/OpenSans-Light.ttf'
!wget 'https://github.com/google/fonts/raw/master/apache/opensans/OpenSans-SemiBold.ttf'
!wget 'https://github.com/google/fonts/raw/master/apache/opensans/OpenSans-Bold.ttf'

from matplotlib import font_manager as fm, pyplot as plt

# Pick up any fonts in the current directory.
# If you do end up downloading the fonts to /usr/share/fonts/truetype,
# change this to: fm.findSystemFonts()
font_files = fm.findSystemFonts('.')

# Go through and add each to Matplotlib's font cache.
for font_file in font_files:
    fm.fontManager.addfont(font_file)

# Use your new font on all your plots.
plt.rc('font', family='Open Sans')

注意，有几次这不能正常工作，并且没有显示请求的字体（即使没有显示错误或警告）。如果发生这种情况，请尝试出厂重置 Colab 运行时并再次运行。

Answer 3

当发布matplotlib 3.2时，它将更加容易。

# For now we must upgrade to 3.2 rc first
# !pip install -U --pre matplotlib  
import matplotlib as mpl
mpl.font_manager.fontManager.addfont('thsarabunnew-webfont.ttf')
mpl.rc('font', family='TH Sarabun New')

Google Colaboratory matplotlib图表中的自定义字体

3 个答案: