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

.. only:: html

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

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

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

.. _sphx_glr_intro_matplotlib_auto_examples_plot_quiver.py:


Plotting a vector field: quiver
================================

A simple example showing how to plot a vector field (quiver) with
matplotlib.

.. GENERATED FROM PYTHON SOURCE LINES 8-28



.. image-sg:: /intro/matplotlib/auto_examples/images/sphx_glr_plot_quiver_001.png
   :alt: plot quiver
   :srcset: /intro/matplotlib/auto_examples/images/sphx_glr_plot_quiver_001.png
   :class: sphx-glr-single-img





.. code-block:: Python


    import numpy as np
    import matplotlib.pyplot as plt

    n = 8
    X, Y = np.mgrid[0:n, 0:n]
    T = np.arctan2(Y - n / 2.0, X - n / 2.0)
    R = 10 + np.sqrt((Y - n / 2.0) ** 2 + (X - n / 2.0) ** 2)
    U, V = R * np.cos(T), R * np.sin(T)

    plt.axes((0.025, 0.025, 0.95, 0.95))
    plt.quiver(X, Y, U, V, R, alpha=0.5)
    plt.quiver(X, Y, U, V, edgecolor="k", facecolor="None", linewidth=0.5)

    plt.xlim(-1, n)
    plt.xticks([])
    plt.ylim(-1, n)
    plt.yticks([])

    plt.show()


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

   **Total running time of the script:** (0 minutes 0.032 seconds)


.. _sphx_glr_download_intro_matplotlib_auto_examples_plot_quiver.py:

.. only:: html

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

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

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

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

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

    .. container:: sphx-glr-download sphx-glr-download-zip

      :download:`Download zipped: plot_quiver.zip <plot_quiver.zip>`


.. only:: html

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

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