Matplotlib 文本尺寸

是否可以确定 matplotlib 文本对象的尺寸？如何找到以像素为单位的宽度和高度？

Thanks

Edit: 我想我已经找到办法了。我在下面举了一个例子。

import matplotlib as plt

f = plt.figure()
r = f.canvas.get_renderer()
t = plt.text(0.5, 0.5, 'test')

bb = t.get_window_extent(renderer=r)
width = bb.width
height = bb.height

from matplotlib import pyplot as plt

f = plt.figure()
r = f.canvas.get_renderer()
t = plt.text(0.5, 0.5, 'test')

bb = t.get_window_extent(renderer=r)
width = bb.width
height = bb.height