.. _animation-dynamic_image2:

animation example code: dynamic_image2.py
=========================================

[`source code <dynamic_image2.py>`_]

::

    #!/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)
    # 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))
        ims.append([im])
    
    ani = animation.ArtistAnimation(fig, ims, interval=50, blit=True,
        repeat_delay=1000)
    
    #ani.save('dynamic_images.mp4')
    
    
    plt.show()
    

Keywords: python, matplotlib, pylab, example, codex (see :ref:`how-to-search-examples`)