matplotlib savefig()与show()不同 [英] matplotlib savefig() plots different from show()
问题描述
当我使用 show()
来绘制 X
中的图时,图看起来非常好。但是,当我开始使用 savefig()
生成大量图时, savefig()
生成的图
'字体,线条,多边形看起来都小于 show()
生成的图形。我的环境是Ubuntu,并且 show()
的后端是 Qt4Agg
。我该如何制作 show()
图并且 savefig()
图看起来一致?
dpi
kwarg to savefig
)。它不会从原始图形的DPI中插入。
DPI影响文本的相对大小和线条上的笔画宽度等。如果您希望看起来完全相同,然后将 fig.dpi
传递给 fig.savefig
。
import matplotlib.pyplot as plt
fig = plt。 figure()
plt.plot(range(10))
fig.savefig('temp.png',dpi = fig.dpi)
When I use show()
to plot the graphs in X
, the graphs looks very good. However when I start to use savefig()
to generate large amount of graphs, the savefig()
generated graphs
' font, lines, polygons all look smaller than the show()
generated graph. My environment is Ubuntu and the backend for show()
is Qt4Agg
. How can I make the show()
plot and the savefig()
plot looks consistent?
savefig
specifies the DPI for the saved figure (The default is 100 if it's not specified in your .matplotlibrc, have a look at the dpi
kwarg to savefig
). It doesn't inheret it from the DPI of the original figure.
The DPI affects the relative size of the text and width of the stroke on lines, etc. If you want things to look identical, then pass fig.dpi
to fig.savefig
.
E.g.
import matplotlib.pyplot as plt
fig = plt.figure()
plt.plot(range(10))
fig.savefig('temp.png', dpi=fig.dpi)
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