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

.. only:: html

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

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

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

.. _sphx_glr_auto_examples_Markers_arrows_ragged.py:


Varying number of arrows per navigation position
================================================

.. GENERATED FROM PYTHON SOURCE LINES 7-8

Create a signal

.. GENERATED FROM PYTHON SOURCE LINES 8-23

.. code-block:: Python


    import hyperspy.api as hs
    import numpy as np

    # Create a Signal2D with 2 navigation dimensions
    rng = np.random.default_rng(0)
    data = np.ones((10, 100, 100))
    s = hs.signals.Signal2D(data)

    for axis in s.axes_manager.signal_axes:
        axis.scale = 2*np.pi / 100

    # Select navigation position 5
    s.axes_manager.indices = (5, )








.. GENERATED FROM PYTHON SOURCE LINES 24-29

Dynamic Arrow Markers: Changing Length
######################################

This example shows how to use the Arrows marker with a varying number of
arrows per navigation position

.. GENERATED FROM PYTHON SOURCE LINES 30-50

.. code-block:: Python


    # Define the position of the arrows, use ragged array to enable the navigation
    # position dependence
    offsets= np.empty(s.axes_manager.navigation_shape, dtype=object)
    U = np.empty(s.axes_manager.navigation_shape, dtype=object)
    V = np.empty(s.axes_manager.navigation_shape, dtype=object)
    for ind in np.ndindex(U.shape):
        offsets[ind] = rng.random((ind[0]+1, 2)) * 6
        U[ind] = rng.random(ind[0]+1) * 2
        V[ind] = rng.random(ind[0]+1) * 2

    m = hs.plot.markers.Arrows(
        offsets,
        U,
        V,
        )

    s.plot()
    s.add_marker(m)




.. rst-class:: sphx-glr-horizontal


    *

      .. image-sg:: /auto_examples/Markers/images/sphx_glr_arrows_ragged_001.png
         :alt: arrows ragged
         :srcset: /auto_examples/Markers/images/sphx_glr_arrows_ragged_001.png
         :class: sphx-glr-multi-img

    *

      .. image-sg:: /auto_examples/Markers/images/sphx_glr_arrows_ragged_002.png
         :alt:  Signal
         :srcset: /auto_examples/Markers/images/sphx_glr_arrows_ragged_002.png
         :class: sphx-glr-multi-img





.. GENERATED FROM PYTHON SOURCE LINES 51-52

sphinx_gallery_thumbnail_number = 2


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

   **Total running time of the script:** (0 minutes 0.733 seconds)


.. _sphx_glr_download_auto_examples_Markers_arrows_ragged.py:

.. only:: html

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

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

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

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

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


.. only:: html

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

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