我可以在matplotlib支持的Aitoff投影中反转坐标轴吗?(它不是复制品.)

Question

我想在python脚本中反转我的aitoff投影的x轴。下面是一个例子

import numpy as np
import matplotlib.pyplot as plt
X=[-1,0,1,2]
Y=[0,1,0,1]
plt.figure()
plt.subplot(111,projection="aitoff")
plt.grid(True)
plt.gca().invert_xaxis()
plt.scatter(X,Y)
plt.show()

plt.gca().invert_xaxis()将显示错误。

Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/home/hea/.local/lib/python3.10/site-packages/matplotlib/axes/_base.py", line 3525, in invert_xaxis
self.xaxis.set_inverted(not self.xaxis.get_inverted())
File "/home/hea/.local/lib/python3.10/site-packages/matplotlib/axis.py", line 2243, in set_inverted
self.axes.set_xlim(sorted((a, b), reverse=bool(inverted)), auto=None)
File "/home/hea/.local/lib/python3.10/site-packages/matplotlib/projections/geo.py", line 151, in set_xlim
raise TypeError("Changing axes limits of a geographic projection is "
TypeError: Changing axes limits of a geographic projection is not supported.  Please consider using Cartopy.

如果我删除plt.gca().invert_xaxis()，它将工作良好。我有什么办法能修好它吗?

Answer 1

我为您提供了一个解决方案，但是需要一些特殊的plt.pause才能使其工作(如果省略了这些暂停，则在操作后根本不会为我显示xticks):

与其反转x轴，不如尝试同时翻转x坐标和xticklabels:

import numpy as np
import matplotlib.pyplot as plt
X=[-1,0,1,2]
Y=[0,1,0,1]
plt.figure()
plt.subplot(111,projection="aitoff")
plt.grid(True)
X = -np.array(X)  # flip X coordinates
plt.scatter(X,Y)
plt.pause(0.5)  # without theses pauses the ticks are not displayed at all, not sure why
ax = plt.gca()
ax.set_xticklabels(ax.get_xticklabels()[::-1])  # flip xticklabels
plt.pause(0.5) # without theses pauses the ticks are not displayed at all, not sure why
plt.show()