Matplotlib中的非ASCII字符 [英] Non-ASCII characters in Matplotlib
问题描述
我在Matplotlib中显示非 ASCII 字符时遇到问题,这些字符呈现为小字体框而不是适当的字体,看起来像(我用红色油漆填充了这些框以突出显示它们):
I have a problem displaying non-ASCII characters in Matplotlib, these characters are rendered as small boxes instead of a proper font, it looks like (I filled these boxes with red paint to hightlight them):
我该如何解决?
一个相关的问题是 Matplotlib中的重音字符 .
A related question is Accented characters in Matplotlib.
推荐答案
此问题实际上可能有两个不同的原因:
This problem may actually have a couple of different causes:
默认字体不包含这些字形
您可以使用以下命令更改默认字体(在完成任何绘制之前!)
You may change the default font using the following (before any plotting is done!)
matplotlib.rc('font', family='Arial')
在某些版本的matplotlib中,您必须设置族:
In some versions of matplotlib you'll have to set the family:
matplotlib.rc('font', **{'sans-serif' : 'Arial',
'family' : 'sans-serif'})
(请注意,由于sans-serif
在**{}
语法中包含连字符,因此实际上是必需的.)
(Note that because sans-serif
contains a hyphen inside the **{}
syntax, it is actually necessary.)
第一个命令将sans-serif
字体系列更改为仅包含一种字体(在我的情况下为 Arial ),第二个将默认字体系列设置为sans-serif
.
The first command changes the sans-serif
font family to contain only one font (in my case it was Arial), the second sets the default font family to sans-serif
.
Other options are included in the documentation.
您没有正确地将字符串对象创建/传递给Matplotlib
即使字体包含正确的字形,如果您忘记使用u
来创建 Unicode 常量,Matplotlib将具有以下行为:
Even if the font contains proper glyphs, if you forgot to use u
to create Unicode constants, Matplotlib will have this behaviour:
plt.xlabel("Średnia odległość między stacjami wsparcia a modelowaną [km]")
因此您需要添加u
:
plt.xlabel(u"Średnia odległość między stacjami wsparcia a modelowaną [km]")
另一个原因是您忘记在顶部放置 UTF-8 魔术注释文件的内容(我听说这可能是问题的根源):
Another cause is that you forgot to put a UTF-8 magic comment on top of the file (I read that this might be the source of the problem):
# -*- coding: utf-8 -*-
这篇关于Matplotlib中的非ASCII字符的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!