"""

===========

Multicursor

===========

Showing a cursor on multiple plots simultaneously.

This example generates two subplots and on hovering the cursor over data in one

subplot, the values of that datapoint are shown in both respectively.

"""

import numpy as np

import matplotlib.pyplot as plt

from matplotlib.widgets import MultiCursor

t = np.arange(0.0, 2.0, 0.01)

s1 = np.sin(2*np.pi*t)

s2 = np.sin(4*np.pi*t)

fig, (ax1, ax2) = plt.subplots(2, sharex=True)

ax1.plot(t, s1)

ax2.plot(t, s2)

multi = MultiCursor(fig.canvas, (ax1, ax2), color='r', lw=1)

plt.show()

#############################################################################

#

# .. admonition:: References

#

# The use of the following functions, methods, classes and modules is shown

# in this example:

#

# - `matplotlib.widgets.MultiCursor`