ellipse_demo.py

import matplotlib.pyplot as plt
import numpy as np
from matplotlib.patches import Ellipse
import matplotlib.animation as animation
from IPython.display import HTML

num = 250

ells = [Ellipse(xy=np.random.rand(2) * 10,
                width=np.random.rand(), height=np.random.rand(),
                angle=np.random.rand() * 360)
        for i in range(num)]

fig, ax = plt.subplots(figsize=(6,6),subplot_kw={'aspect': 'equal'})
def update(num):
    ax.add_artist(ells[num])
    ells[num].set_clip_box(ax.bbox)
    ells[num].set_alpha(np.random.rand())
    ells[num].set_facecolor(np.random.rand(3))
    ells[num].set_clip_on(False)

ax.set_xlim(0, 10)
ax.set_ylim(0, 10)
ax.axis('off')
ani = animation.FuncAnimation(fig, update, interval = 30, frames = 250)
ani.save('eli_animation.mp4', writer="ffmpeg",dpi=100)
HTML(ani.to_html5_video())

#version
import matplotlib
print(matplotlib.__version__)
print(np.__version__)
3.3.0
1.19.1