How do I center the box (spines) in my matplotlib figures?-CodePudding

When I save off a matplotlib figure, I have unequal whitespace around the box containing my figure, since the left side has the axis markings (ditto for the bottom side).

import numpy as np
import matplotlib.pyplot as plt

x = np.linspace(0, 1, 32)

plt.plot(x, x**2)
plt.show()

Is there a way I can center the box in the image?

CodePudding user response：

You could extract the current left, right, bottom and top margins, and then set them to the maximum in the two directions.

import matplotlib.pyplot as plt
import numpy as np

x = np.linspace(0, 1, 32)
plt.plot(x, x ** 2)
fig = plt.gcf()
left = max(fig.subplotpars.left, 1 - fig.subplotpars.right)
bottom = max(fig.subplotpars.bottom, 1 - fig.subplotpars.top)
fig.subplots_adjust(left=left, right=1 - left, bottom=bottom, top=1 - bottom)
plt.show()