.. _sphx_glr_gallery_animation_animation_demo.py:


================
pyplot animation
================

Generating an animation by calling `~.pyplot.pause` between plotting commands.

The method shown here is only suitable for simple, low-performance use.  For
more demanding applications, look at the :mod:`animation` module and the
examples that use it.

Note that calling `time.sleep` instead of `~.pyplot.pause` would *not* work.




.. image:: /gallery/animation/images/sphx_glr_animation_demo_001.png
    :align: center





.. code-block:: python


    import matplotlib.pyplot as plt
    import numpy as np

    np.random.seed(19680801)
    data = np.random.random((50, 50, 50))

    fig, ax = plt.subplots()

    for i in range(len(data)):
        ax.cla()
        ax.imshow(data[i])
        ax.set_title("frame {}".format(i))
        # Note that using time.sleep does *not* work here!
        plt.pause(0.1)

**Total running time of the script:** ( 0 minutes  6.914 seconds)



.. only :: html

 .. container:: sphx-glr-footer


  .. container:: sphx-glr-download

     :download:`Download Python source code: animation_demo.py <animation_demo.py>`



  .. container:: sphx-glr-download

     :download:`Download Jupyter notebook: animation_demo.ipynb <animation_demo.ipynb>`


.. only:: html

 .. rst-class:: sphx-glr-signature

    `Gallery generated by Sphinx-Gallery <https://sphinx-gallery.readthedocs.io>`_