https://github.com/flaribbit/fix-matplotlib-chinese
修复 matplotlib 中英混排问题
https://github.com/flaribbit/fix-matplotlib-chinese
chinese matplotlib
Last synced: about 2 months ago
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修复 matplotlib 中英混排问题
- Host: GitHub
- URL: https://github.com/flaribbit/fix-matplotlib-chinese
- Owner: flaribbit
- Created: 2021-10-27T10:59:50.000Z (over 4 years ago)
- Default Branch: master
- Last Pushed: 2021-10-28T14:21:26.000Z (over 4 years ago)
- Last Synced: 2025-03-22T13:26:12.718Z (about 1 year ago)
- Topics: chinese, matplotlib
- Language: Python
- Homepage:
- Size: 5.86 KB
- Stars: 0
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: Readme.md
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README
# 修复 matplotlib 中英混排问题
众所周知，matplotlib 默认字体不能显示中文，但论文通常要求 Times + 宋体，于是考虑这样写：
```py
plt.rcParams['font.sans-serif'] = ['Times New Roman', 'Simsun']
```
结果并没有什么卵用，还是只能 Times，于是翻阅了一下其源码，提出以下解决方案：
找到文件 `_mathtext.py`，222行附近，增加一行中文字体
```diff
class TruetypeFonts(Fonts):
"""
A generic base class for all font setups that use Truetype fonts
(through FT2Font).
"""
def __init__(self, default_font_prop, mathtext_backend):
super().__init__(default_font_prop, mathtext_backend)
self.glyphd = {}
self._fonts = {}
filename = findfont(default_font_prop)
default_font = get_font(filename)
self._fonts['default'] = default_font
self._fonts['regular'] = default_font
+ self._fonts['chinese'] = get_font(findfont('Simsun'))
```
530行附近，增加一条判断语句
```diff
if not found_symbol:
if self.cm_fallback:
if (fontname in ('it', 'regular')
and isinstance(self.cm_fallback, StixFonts)):
fontname = 'rm'
g = self.cm_fallback._get_glyph(fontname, font_class,
sym, fontsize)
fname = g[0].family_name
if fname in list(BakomaFonts._fontmap.values()):
fname = "Computer Modern"
_log.info("Substituting symbol %s from %s", sym, fname)
return g
+ elif fontname != 'chinese':
+ return self._get_glyph('chinese', font_class, sym, fontsize)
else:
if (fontname in ('it', 'regular')
and isinstance(self, StixFonts)):
return self._get_glyph('rm', font_class, sym, fontsize)
```
这样一来会把默认字体找不到的符号用宋体代替，如果还找不到才渲染成框。
最后，这只是个临时解决方案，坐等[这条PR](https://github.com/matplotlib/matplotlib/pull/20740)合并。