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

.. only:: html

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

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

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

.. _sphx_glr__gallery_selection_tools_rectangle_selector_zoom.py:


Rectangle Selectors Images
==========================

Example showing how to use a `RectangleSelector` with images

.. GENERATED FROM PYTHON SOURCE LINES 7-53



.. image-sg:: /_gallery/selection_tools/images/sphx_glr_rectangle_selector_zoom_001.webp
   :alt: rectangle selector zoom
   :srcset: /_gallery/selection_tools/images/sphx_glr_rectangle_selector_zoom_001.webp
   :class: sphx-glr-single-img





.. code-block:: Python


    # test_example = false

    import imageio.v3 as iio
    import fastplotlib as fpl

    # create a figure
    figure = fpl.Figure(
        shape=(2, 1),
        size=(700, 560)
    )

    # add image
    image_graphic = figure[0, 0].add_image(data=iio.imread("imageio:camera.png"))

    # add rectangle selector to image graphic
    rectangle_selector = image_graphic.add_rectangle_selector()

    # add a zoomed plot of the selected data
    zoom_ig = figure[1, 0].add_image(rectangle_selector.get_selected_data())


    # add event handler to update the data of the zoomed image as the selection changes
    @rectangle_selector.add_event_handler("selection")
    def update_data(ev):
        # get the new data
        new_data = ev.get_selected_data()

        # remove the old zoomed image graphic
        global zoom_ig

        figure[1, 0].remove_graphic(zoom_ig)

        # add new zoomed image of new data
        zoom_ig = figure[1, 0].add_image(data=new_data)

        # autoscale the plot
        figure[1, 0].auto_scale()

    figure.show()

    # NOTE: `if __name__ == "__main__"` is NOT how to use fastplotlib interactively
    # please see our docs for using fastplotlib interactively in ipython and jupyter
    if __name__ == "__main__":
        print(__doc__)
        fpl.run()


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

   **Total running time of the script:** (0 minutes 1.462 seconds)


.. _sphx_glr_download__gallery_selection_tools_rectangle_selector_zoom.py:

.. only:: html

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

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

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

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

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

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

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


.. only:: html

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

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