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

.. only:: html

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

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

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

.. _sphx_glr__gallery_vectors_vectors_simple.py:


Simple Vectors
==============

Simple example with vectors. Similar to matplotlib quiver.

.. GENERATED FROM PYTHON SOURCE LINES 8-43



.. image-sg:: /_gallery/vectors/images/sphx_glr_vectors_simple_001.webp
   :alt: vectors simple
   :srcset: /_gallery/vectors/images/sphx_glr_vectors_simple_001.webp
   :class: sphx-glr-single-img





.. code-block:: Python


    # test_example = true

    import numpy as np
    import fastplotlib as fpl

    figure = fpl.Figure(size=(700, 700))

    start, stop, step = 0, 2 * np.pi, 0.2

    # get uniform x, y positions
    x, y = np.meshgrid(np.arange(start, stop, step), np.arange(start, stop, step))

    # vectors, u and v are x and y components indicating directions
    u = np.cos(x)
    v = np.sin(y)

    # positions of each vector as [n_points, 2] array
    positions = np.column_stack([x.ravel(), y.ravel()])
    # directions of each vector as a [n_points, 2] array
    directions = np.column_stack([u.ravel(), v.ravel()])


    vectors = figure[0, 0].add_vectors(
        positions=positions,
        directions=directions,
    )

    figure.show()

    # NOTE: fpl.loop.run() should not be used for interactive sessions
    # See the "JupyterLab and IPython" section in the user guide
    if __name__ == "__main__":
        print(__doc__)
        fpl.loop.run()


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

   **Total running time of the script:** (0 minutes 0.753 seconds)


.. _sphx_glr_download__gallery_vectors_vectors_simple.py:

.. only:: html

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

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

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

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

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


.. only:: html

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

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