dynamic_image2.py

"""
========================================
An animated image using a list of images
========================================

Animate an image from a list of images (or Artists).
"""
import numpy as np
import matplotlib.pyplot as plt
import matplotlib.animation as animation
import time

fig = plt.figure()


def f(x, y):
    return np.sin(x) + np.cos(y)

x = np.linspace(0, 2 * np.pi, 120)
y = np.linspace(0, 2 * np.pi, 100).reshape(-1, 1)
# ims is a list of lists, each row is a list of artists to draw in the
# current frame; here we are just animating one artist, the image, in
# each frame
ims = []
for i in range(60):
    x += np.pi / 15.
    y += np.pi / 20.
    im = plt.imshow(f(x, y), animated=True)
    print(im)
    exit()
    ims.append([im])

ani = animation.ArtistAnimation(fig, ims, interval=50, blit=True,
                                repeat_delay=1000)

ani.save('dynamic_image2.gif', writer='imagemagick', fps=60)