Matplotlib animation

matplotlib で sin波のアニメーションを作った

• ax.plot()をimgで拾える
• ax.set_prop_cycle(None) で色を固定できる
• 'imagemagick' はお手持ちの環境で
• repeat=False がうまく動かないのは疑問

import numpy as np
import matplotlib.pyplot as plt
import matplotlib.animation as mpani
x = 2*np.pi* np.arange(50)/50
fig = plt.figure()
ax = fig.add_subplot(111)

imgs = []
for dx in x:
    ax.set_prop_cycle(None)
    img = ax.plot(x, np.sin(x+dx))
    imgs.append(img)
    
ani = mpani.ArtistAnimation(fig, imgs, interval=100, blit=True, repeat=False)
ani.save('mytest.gif', 'imagemagick')