.. DO NOT EDIT.
.. THIS FILE WAS AUTOMATICALLY GENERATED BY SPHINX-GALLERY.
.. TO MAKE CHANGES, EDIT THE SOURCE PYTHON FILE:
.. "gallery/lines_bars_and_markers/span_regions.py"
.. LINE NUMBERS ARE GIVEN BELOW.

.. only:: html

    .. meta::
        :keywords: codex

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

        :ref:`Go to the end <sphx_glr_download_gallery_lines_bars_and_markers_span_regions.py>`
        to download the full example code

.. rst-class:: sphx-glr-example-title

.. _sphx_glr_gallery_lines_bars_and_markers_span_regions.py:


==========================================================
Shade regions defined by a logical mask using fill_between
==========================================================

.. GENERATED FROM PYTHON SOURCE LINES 6-24

.. code-block:: Python


    import matplotlib.pyplot as plt
    import numpy as np

    t = np.arange(0.0, 2, 0.01)
    s = np.sin(2*np.pi*t)

    fig, ax = plt.subplots()

    ax.plot(t, s, color='black')
    ax.axhline(0, color='black')

    ax.fill_between(t, 1, where=s > 0, facecolor='green', alpha=.5)
    ax.fill_between(t, -1, where=s < 0, facecolor='red', alpha=.5)

    plt.show()





.. image-sg:: /gallery/lines_bars_and_markers/images/sphx_glr_span_regions_001.png
   :alt: span regions
   :srcset: /gallery/lines_bars_and_markers/images/sphx_glr_span_regions_001.png, /gallery/lines_bars_and_markers/images/sphx_glr_span_regions_001_2_00x.png 2.00x
   :class: sphx-glr-single-img





.. GENERATED FROM PYTHON SOURCE LINES 25-31

.. admonition:: References

   The use of the following functions, methods, classes and modules is shown
   in this example:

   - `matplotlib.axes.Axes.fill_between`


.. _sphx_glr_download_gallery_lines_bars_and_markers_span_regions.py:

.. only:: html

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

    .. container:: sphx-glr-download sphx-glr-download-jupyter

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

    .. container:: sphx-glr-download sphx-glr-download-python

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


.. only:: html

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

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