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animation example code: dynamic_image.pyΒΆ

[source code]

#!/usr/bin/env python
"""
An animated image
"""
import numpy as np
import matplotlib.pyplot as plt
import matplotlib.animation as animation

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)

im = plt.imshow(f(x, y), cmap=plt.get_cmap('jet'))

def updatefig(*args):
    global x,y
    x += np.pi / 15.
    y += np.pi / 20.
    im.set_array(f(x,y))
    return im,

ani = animation.FuncAnimation(fig, updatefig, interval=50, blit=True)
plt.show()

Keywords: python, matplotlib, pylab, example, codex (see Search examples)