如何在Python matplotlib中使x轴和y轴的比例相等? [英] How to equalize the scales of x-axis and y-axis in Python matplotlib?

问题描述

我希望在正方形图上画线.

I wish to draw lines on a square graph.

x-axis和y-axis的小数位数应该相同.

The scales of x-axis and y-axis should be the same.

例如x的范围是0到10，在屏幕上是10厘米. y的范围也必须为0到10，并且也必须为10厘米.

e.g. x ranges from 0 to 10 and it is 10cm on the screen. y has to also range from 0 to 10 and has to be also 10 cm.

即使我迷失了窗口大小，也必须保持正方形.

The square shape has to be maintained, even if I mess around with the window size.

当前，我的图形与窗口大小一起缩放.

Currently, my graph scales together with the window size.

我该如何实现?

更新:

我尝试了以下操作，但是没有用.

I tried the following, but it did not work.

plt.xlim(-3, 3)
plt.ylim(-3, 3)
plt.axis('equal')

推荐答案

您需要对api进行更深入的研究:

You need to dig a bit deeper into the api to do this:

from matplotlib import pyplot as plt
plt.plot(range(5))
plt.xlim(-3, 3)
plt.ylim(-3, 3)
plt.gca().set_aspect('equal', adjustable='box')
plt.draw()

set_aspect的文档

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