Chinese garbled characters in matplotlib under Ubuntu

 

This article mainly introduces how to solve the problem of Chinese garbled characters generated by matplotlib under ubuntu. As shown below 

Solutions

• Prepare Chinese fonts
• matplotlib specifies the font as Chinese font
• Empty matplotlib to make the configuration take effect

Prepare Chinese fonts

• Download the Chinese ttf file, or copy it from the Windows operating system. As  in bold (click to download)
• Double-click to install/ or cp to /usr/share/fonts/truetype/dejavu/
• Run the command fc-list :lang=zh-cnin the terminal to view the corresponding Chinese fonts 配置名. The corresponding names in bold are SimHei. 

matplotlib specifies the font as Chinese font

• Copy the Chinese font files to the fonts/ttf directory of matplotlib. The complete catalog is/usr/local/lib/python*/dist-packages/matplotlib/mpl-data/fonts/ttf
• Modify the configuration /usr/local/lib/python*/dist-packages/matplotlib/mpl-data/matplotlibrcfile

# 搜索font.family配置项，将其#注释去掉，并将：号后面的值改为字段对应的名字。
font.family         : SimHei

# 搜索axes.unicode_minus配置项，将其#注释去掉，并将：号后面的值改为False
axes.unicode_minus  : False

save and exit

Empty matplotlib to make the configuration take effect

rm ~/.cache/matplotlib -R

final renderings

The test code used in this article

import matplotlib.pyplot as plt
import numpy as np

x = np.arange(0, 10, 0.1)

y = x * 2

plt.title("一元一次函数")
plt.plot(x, y)

plt.show()