Figure Axes Enter LeaveΒΆ

Illustrate the figure and axes enter and leave events by changing the frame colors on enter and leave

import matplotlib.pyplot as plt


def on_enter_axes(event):
    print('enter_axes', event.inaxes)
    event.inaxes.patch.set_facecolor('yellow')
    event.canvas.draw()


def on_leave_axes(event):
    print('leave_axes', event.inaxes)
    event.inaxes.patch.set_facecolor('white')
    event.canvas.draw()


def on_enter_figure(event):
    print('enter_figure', event.canvas.figure)
    event.canvas.figure.patch.set_facecolor('red')
    event.canvas.draw()


def on_leave_figure(event):
    print('leave_figure', event.canvas.figure)
    event.canvas.figure.patch.set_facecolor('grey')
    event.canvas.draw()
fig1, (ax, ax2) = plt.subplots(2, 1)
fig1.suptitle('mouse hover over figure or axes to trigger events')

fig1.canvas.mpl_connect('figure_enter_event', on_enter_figure)
fig1.canvas.mpl_connect('figure_leave_event', on_leave_figure)
fig1.canvas.mpl_connect('axes_enter_event', on_enter_axes)
fig1.canvas.mpl_connect('axes_leave_event', on_leave_axes)
mouse hover over figure or axes to trigger events

Out:

8
fig2, (ax, ax2) = plt.subplots(2, 1)
fig2.suptitle('mouse hover over figure or axes to trigger events')

fig2.canvas.mpl_connect('figure_enter_event', on_enter_figure)
fig2.canvas.mpl_connect('figure_leave_event', on_leave_figure)
fig2.canvas.mpl_connect('axes_enter_event', on_enter_axes)
fig2.canvas.mpl_connect('axes_leave_event', on_leave_axes)

plt.show()
mouse hover over figure or axes to trigger events

Keywords: matplotlib code example, codex, python plot, pyplot Gallery generated by Sphinx-Gallery