.. _sphx_glr_gallery_widgets_multicursor.py:


===========
Multicursor
===========

Showing a cursor on multiple plots simultaneously.

This example generates two subplots and on hovering
the cursor over data in one subplot, the values of that datapoint
are shown in both respectively.




.. image:: /gallery/widgets/images/sphx_glr_multicursor_001.png
    :align: center





.. code-block:: python

    import numpy as np
    import matplotlib.pyplot as plt
    from matplotlib.widgets import MultiCursor

    t = np.arange(0.0, 2.0, 0.01)
    s1 = np.sin(2*np.pi*t)
    s2 = np.sin(4*np.pi*t)
    fig = plt.figure()
    ax1 = fig.add_subplot(211)
    ax1.plot(t, s1)


    ax2 = fig.add_subplot(212, sharex=ax1)
    ax2.plot(t, s2)

    multi = MultiCursor(fig.canvas, (ax1, ax2), color='r', lw=1)
    plt.show()

**Total running time of the script:** ( 0 minutes  0.039 seconds)



.. only :: html

 .. container:: sphx-glr-footer


  .. container:: sphx-glr-download

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



  .. container:: sphx-glr-download

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


.. only:: html

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

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