Using following code to get axis position and the ration of weight and height.
import matplotlib.pyplot as plt
ss = 2.4
fig, ax = plt.subplots(1, 1, figsize=(ss, ss))
box = ax.get_position()
box.width/box.height
Set ss=2.4, 3.6, 7.2, the output in my PC is always the same:
1.0064935064935066
Backend: %matplotlib qt
Why not get the width and height the same value?
There is per se no reason that an axes should be square, just because the figure it lives in is square.
The subplot parameters set by the default rc file are
figure.subplot.left : 0.125 ## the left side of the subplots of the figure figure.subplot.right : 0.9 ## the right side of the subplots of the figure figure.subplot.bottom : 0.11 ## the bottom of the subplots of the figure figure.subplot.top : 0.88 ## the top of the subplots of the figure
such that
(right-left)/(top-bottom) = (0.9-0.125)/(0.88-0.11) = 1.0064935
Of course you can set those parameters to your liking and hence optain a square subplot, either in your rc file, or via code, e.g.
rc = {"figure.subplot.left" : 0.1,
"figure.subplot.right" : 0.9,
"figure.subplot.bottom" : 0.1,
"figure.subplot.top" : 0.9 }
plt.rcParams.update(rc)
or
fig.subplots_adjust(left=0.1, bottom=0.1, right=0.9, top=0.9)
