"matplotlib.animation：如何绘制动画并将其同时保存在文件中？"

Question

With animation<\/code> from matplotlib<\/code> we can plot dynamic animations. Installing the ffmpeg<\/code> codec we can save these animations into files.

ani = animation.FuncAnimation(fig, animate, frames=300,
                          interval=interval, blit=True, init_func=init)

# save the animation as an mp4.  This requires ffmpeg or mencoder to be
# installed.  The extra_args ensure that the x264 codec is used, so that    
# the video can be embedded in html5.  You may need to adjust this for
# your system: for more information, see
# http://matplotlib.sourceforge.net/api/animation_api.html
ani.save('double_pendulum.mp4', fps=30, extra_args=['-vcodec', 'libx264'])
plt.show()

Answer 1

Is the answer "not supported" still valid (i was checking the docs and searchin on the web but couldn't find a solution)?

I have the same use case where i would like to show and save an animation at the same time. Re-running the animation to save it is no option the moment one is working with dynamic, non-predictable values (ie for simulations using a random generator), since this will not lead to the same result.

Is there a workaround?