1""" 2================== 3Animated line plot 4================== 5 6""" 7 8import numpy as np 9import matplotlib.pyplot as plt 10import matplotlib.animation as animation 11 12fig, ax = plt.subplots() 13 14x = np.arange(0, 2*np.pi, 0.01) 15line, = ax.plot(x, np.sin(x)) 16 17 18def init(): # only required for blitting to give a clean slate. 19 line.set_ydata([np.nan] * len(x)) 20 return line, 21 22 23def animate(i): 24 line.set_ydata(np.sin(x + i / 100)) # update the data. 25 return line, 26 27 28ani = animation.FuncAnimation( 29 fig, animate, init_func=init, interval=2, blit=True, save_count=50) 30 31# To save the animation, use e.g. 32# 33# ani.save("movie.mp4") 34# 35# or 36# 37# from matplotlib.animation import FFMpegWriter 38# writer = FFMpegWriter(fps=15, metadata=dict(artist='Me'), bitrate=1800) 39# ani.save("movie.mp4", writer=writer) 40 41plt.show() 42