matplotlib 确定按钮点击的子图

yuvru6vn 于 2023-10-24 发布在其他

关注(0)|答案(2)|浏览(130)

给定一个有多个图的图，是否有一种方法来确定鼠标按钮点击了其中的哪一个？
例如

fig = plt.figure()
ax  = fig.add_subplot(121)
ax.imshow(imsp0)
ax = fig.add_subplot(122)
ax.imshow(imsp1)
fig.canvas.mpl_connect("button_press_event",onclick_select)
def onclick_select(event):
  ... do something depending on the clicked subplot

matplotlib

来源：https://stackoverflow.com/questions/25047846/determine-button-clicked-subplot

2条答案

按热度按时间

c86crjj01#

如果保留两个轴的句柄，则可以只查询发生单击的轴;例如if event.inaxes == ax:

import matplotlib.pyplot as plt
import numpy as np
imsp0 = np.random.rand(10,10)
imsp1 = np.random.rand(10,10)
fig = plt.figure()
ax  = fig.add_subplot(121)
ax.imshow(imsp0)
ax2 = fig.add_subplot(122)
ax2.imshow(imsp1)
def onclick_select(event):
    if event.inaxes == ax:
        print ("event in ax")
    elif event.inaxes == ax2:
        print ("event in ax2")
fig.canvas.mpl_connect("button_press_event",onclick_select)
plt.show()