动画线图

动画线图

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

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