.. DO NOT EDIT.
.. THIS FILE WAS AUTOMATICALLY GENERATED BY SPHINX-GALLERY.
.. TO MAKE CHANGES, EDIT THE SOURCE PYTHON FILE:
.. "gallery/axes_grid1/inset_locator_demo2.py"
.. LINE NUMBERS ARE GIVEN BELOW.

.. only:: html

    .. meta::
        :keywords: codex

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

        :ref:`Go to the end <sphx_glr_download_gallery_axes_grid1_inset_locator_demo2.py>`
        to download the full example code

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

.. _sphx_glr_gallery_axes_grid1_inset_locator_demo2.py:


====================
Inset locator demo 2
====================

This demo shows how to create a zoomed inset via `.zoomed_inset_axes`.
In the first subplot an `.AnchoredSizeBar` shows the zoom effect.
In the second subplot a connection to the region of interest is
created via `.mark_inset`.

A version of the second subplot, not using the toolkit, is available in
:doc:`/gallery/subplots_axes_and_figures/zoom_inset_axes`.

.. GENERATED FROM PYTHON SOURCE LINES 14-74



.. image-sg:: /gallery/axes_grid1/images/sphx_glr_inset_locator_demo2_001.png
   :alt: inset locator demo2
   :srcset: /gallery/axes_grid1/images/sphx_glr_inset_locator_demo2_001.png, /gallery/axes_grid1/images/sphx_glr_inset_locator_demo2_001_2_00x.png 2.00x
   :class: sphx-glr-single-img





.. code-block:: Python


    import matplotlib.pyplot as plt
    import numpy as np

    from matplotlib import cbook
    from mpl_toolkits.axes_grid1.anchored_artists import AnchoredSizeBar
    from mpl_toolkits.axes_grid1.inset_locator import mark_inset, zoomed_inset_axes

    fig, (ax, ax2) = plt.subplots(ncols=2, figsize=[6, 3])


    # First subplot, showing an inset with a size bar.
    ax.set_aspect(1)

    axins = zoomed_inset_axes(ax, zoom=0.5, loc='upper right')
    # fix the number of ticks on the inset axes
    axins.yaxis.get_major_locator().set_params(nbins=7)
    axins.xaxis.get_major_locator().set_params(nbins=7)
    axins.tick_params(labelleft=False, labelbottom=False)


    def add_sizebar(ax, size):
        asb = AnchoredSizeBar(ax.transData,
                              size,
                              str(size),
                              loc=8,
                              pad=0.1, borderpad=0.5, sep=5,
                              frameon=False)
        ax.add_artist(asb)

    add_sizebar(ax, 0.5)
    add_sizebar(axins, 0.5)


    # Second subplot, showing an image with an inset zoom and a marked inset
    Z = cbook.get_sample_data("axes_grid/bivariate_normal.npy")  # 15x15 array
    extent = (-3, 4, -4, 3)
    Z2 = np.zeros((150, 150))
    ny, nx = Z.shape
    Z2[30:30+ny, 30:30+nx] = Z

    ax2.imshow(Z2, extent=extent, origin="lower")

    axins2 = zoomed_inset_axes(ax2, zoom=6, loc=1)
    axins2.imshow(Z2, extent=extent, origin="lower")

    # subregion of the original image
    x1, x2, y1, y2 = -1.5, -0.9, -2.5, -1.9
    axins2.set_xlim(x1, x2)
    axins2.set_ylim(y1, y2)
    # fix the number of ticks on the inset axes
    axins2.yaxis.get_major_locator().set_params(nbins=7)
    axins2.xaxis.get_major_locator().set_params(nbins=7)
    axins2.tick_params(labelleft=False, labelbottom=False)

    # draw a bbox of the region of the inset axes in the parent axes and
    # connecting lines between the bbox and the inset axes area
    mark_inset(ax2, axins2, loc1=2, loc2=4, fc="none", ec="0.5")

    plt.show()


.. _sphx_glr_download_gallery_axes_grid1_inset_locator_demo2.py:

.. only:: html

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

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

      :download:`Download Jupyter notebook: inset_locator_demo2.ipynb <inset_locator_demo2.ipynb>`

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

      :download:`Download Python source code: inset_locator_demo2.py <inset_locator_demo2.py>`


.. only:: html

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

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