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

.. only:: html

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

        Click :ref:`here <sphx_glr_download_matplotlib_plot_contour_legend.py>`
        to download the full example code

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

.. _sphx_glr_matplotlib_plot_contour_legend.py:


contour plots with a label for pecific levels
===================================

.. GENERATED FROM PYTHON SOURCE LINES 5-23



.. image-sg:: /matplotlib/images/sphx_glr_plot_contour_legend_001.png
   :alt: plot contour legend
   :srcset: /matplotlib/images/sphx_glr_plot_contour_legend_001.png
   :class: sphx-glr-single-img





.. code-block:: default


    import matplotlib.pyplot as plt
    import numpy as np

    fig, ax = plt.subplots(1,1, figsize=(5,5))

    x0 = np.linspace(-2,2,100)
    y0 = np.linspace(-2,2,100)
    x,y = np.meshgrid(x0,y0)

    levels=np.arange(0,5,0.5)
    ax.contour(x, y, x**2 + y**2, levels, colors="0.7", linewidths=1)
    cs = ax.contour(x, y, x**2 + y**2, [1,2,3],linewidths=3)
    l = [r'$E=1$', r'$E=2$', r'$E=3$']
    handles, labels = cs.legend_elements()
    ax.legend(handles, l)

    plt.show()


.. rst-class:: sphx-glr-timing

   **Total running time of the script:** ( 0 minutes  0.153 seconds)


.. _sphx_glr_download_matplotlib_plot_contour_legend.py:


.. only :: html

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



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

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



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

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


.. only:: html

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

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