.. note::
    :class: sphx-glr-download-link-note

    Click :ref:`here <sphx_glr_download_gallery_animation_simple_anim.py>` to download the full example code
.. rst-class:: sphx-glr-example-title

.. _sphx_glr_gallery_animation_simple_anim.py:


==================
Animated line plot
==================





.. image:: /gallery/animation/images/sphx_glr_simple_anim_001.png
    :class: sphx-glr-single-img





.. code-block:: python


    import numpy as np
    import matplotlib.pyplot as plt
    import matplotlib.animation as animation

    fig, ax = plt.subplots()

    x = np.arange(0, 2*np.pi, 0.01)
    line, = ax.plot(x, np.sin(x))


    def init():  # only required for blitting to give a clean slate.
        line.set_ydata([np.nan] * len(x))
        return line,


    def animate(i):
        line.set_ydata(np.sin(x + i / 100))  # update the data.
        return line,


    ani = animation.FuncAnimation(
        fig, animate, init_func=init, interval=2, blit=True, save_count=50)

    # To save the animation, use e.g.
    #
    # ani.save("movie.mp4")
    #
    # or
    #
    # from matplotlib.animation import FFMpegWriter
    # writer = FFMpegWriter(fps=15, metadata=dict(artist='Me'), bitrate=1800)
    # ani.save("movie.mp4", writer=writer)

    plt.show()


.. _sphx_glr_download_gallery_animation_simple_anim.py:


.. only :: html

 .. container:: sphx-glr-footer
    :class: sphx-glr-footer-example



  .. container:: sphx-glr-download

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



  .. container:: sphx-glr-download

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


.. only:: html

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

    Keywords: matplotlib code example, codex, python plot, pyplot
    `Gallery generated by Sphinx-Gallery
    <https://sphinx-gallery.readthedocs.io>`_
