Question

有没有办法检测鼠标所关注的matplotlib对象？这段代码说明了我想要的东西

self.canvas.mpl_connect("motion_notify_event", self.on_focus)

def on_focus(self, event):
    # get mouse position in figure
    figPos = (event.x,event.y)
    # get mouse position in axes if focusing on an axes
    axesPos = event.xdata, event.ydata
    # get axes instance if mouse is focusing on an axes
    axes = event.inaxes
    # get object (any matplotlib object, Text, Box, ...) mouse is focused on
    obj = event.??????

感谢

Answer 1

尝试Axes.hitlist：

import matplotlib.pyplot as plt

fig = plt.figure()
ax = fig.add_subplot(111)
ax.plot(range(10),range(10))

def on_focus(event):
    print ax.hitlist(event)
fig.canvas.mpl_connect("motion_notify_event", on_focus)
plt.show()

但如果您只想要突出显示，则可以使用内置：

fig.canvas.mpl_connect("motion_notify_event",fig.canvas.onHilite)

matplotlib在鼠标事件时检测对象

1 个答案: