问题描述
我想将图形绘制为精确的分辨率(例如800x600),但是当使用 bbox_inches ='tight
'时,这些图并不是全分辨率的,而是较小的.我可以将以英寸为单位的图像大小手动设置为大约(9.2,6.5),这将导致799 x 601,但我希望有更好的解决方案.可以在调整大小之前设置 bbox_inches ='tight'
吗?
I want to plot graphs to an exact resolution (e.g. 800x600), but when using bbox_inches='tight
' the plots are not at full resolution, they are smaller.I can manually set the image size in inches to about (9.2, 6.5), which results in 799 x 601, but I hope there is a better solution. Can you set bbox_inches='tight'
before adjusting the size?
import matplotlib as mlp
import matplotlib.pyplot as plt
import numpy as np
fig = plt.figure()
ax = fig.add_subplot(111)
x = y = np.arange(0, 1, 0.1)
plt.plot(x, y, label='my function')
plt.title('title')
ax.set_xlabel('xAxis')
ax.set_ylabel('yAxis')
#print fig.get_size_inches()
#fig.set_size_inches(9.2, 6.5)
plt.savefig('exact_size_test.png', bbox_inches='tight', dpi=100)
https://img707.imageshack.us/img707/2192/exactsizetest.png
推荐答案
您想使用 tight_layout
(文档),然后调用 savefig
You want to use tight_layout
(doc) before calling savefig
import matplotlib as mlp
import matplotlib.pyplot as plt
import numpy as np
fig = plt.figure()
ax = fig.add_subplot(111)
x = y = np.arange(0, 1, 0.1)
plt.plot(x, y, label='my function')
plt.title('title')
ax.set_xlabel('xAxis')
ax.set_ylabel('yAxis')
#print fig.get_size_inches()
fig.set_size_inches(8, 6, forward=True)
fig.tight_layout()
plt.savefig('exact_size_test.png', dpi=100)
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