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# Simple example of using general timer objects. This is used to update
# the time placed in the title of the figure.
import matplotlib.pyplot as plt
import numpy as np
from datetime import datetime
def update_title(axes):
axes.set_title(datetime.now())
axes.figure.canvas.draw()
fig, ax = plt.subplots()
x = np.linspace(-3, 3)
ax.plot(x, x*x)
# Create a new timer object. Set the interval to 100 milliseconds
# (1000 is default) and tell the timer what function should be called.
timer = fig.canvas.new_timer(interval=100)
timer.add_callback(update_title, ax)
timer.start()
# Or could start the timer on first figure draw
#def start_timer(evt):
# timer.start()
# fig.canvas.mpl_disconnect(drawid)
#drawid = fig.canvas.mpl_connect('draw_event', start_timer)
plt.show()
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