matplotlib：savefig 省略了 eps 中的文本和轴标签

Question

If I execute the following code, the resulting eps-file does not contain tick labels or axes labels.

import matplotlib.pyplot as plt
import numpy as np

x = np.linspace(0,2*np.pi,100)
y = np.sin(x)

plt.figure()
plt.plot(x,y)
plt.xlabel('x')
plt.ylabel('sin(x)')
plt.savefig('image.eps', format='eps')

As some additional information: I am using version 4.3.0 of the anaconda distribution and execute my code in Spyder 3.1..2. I tested the two backends TkAgg and Qt5Agg, the result is the same for both.

Any ideas how I can get a correct eps-file?

Alternatively: which other vector graphics format could I use if I want to import into MS Word later?

Answer 1

So I think that you will find your answer here: https://stackoverflow.com/a/20817722/2402281

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It might be the case that your matplotlib backend does not support that operation. You can change the matplotlib backend as follows:

# The default backend; one of GTK GTKAgg GTKCairo GTK3Agg GTK3Cairo
# CocoaAgg MacOSX Qt4Agg Qt5Agg TkAgg WX WXAgg Agg Cairo GDK PS PDF SVG
import matplotlib
matplotlib.use('PS')

or in the matplotlibrc (see the documentation ).

Answer 2

I encountered same question. The eps file is fine when I plot time series or scatter plot. But when I am plotting geospatial plots using dataframe data, the saved eps file contain no texts and tick labels. So I simply tried:

import matplotlib
matplotlib.use('PS') 
matplotlib.rcParams['text.usetex'] = True

It seems that if you turn the text.usetex to True, it may help. Btw, my Matplotlib is 3.4.2, and operation system is MacOS, and I am using Spyder with python 3.7. Actually I don't know why it sometimes works sometimes does not work, and why it works after I adding matplotlib.rcParams['text.usetex'] = True ...It may be because I used alpha when I plot the geospatial plots (like set alpha=5 in ax.scatter ). I will put some tiny examples later.