.. DO NOT EDIT.
.. THIS FILE WAS AUTOMATICALLY GENERATED BY SPHINX-GALLERY.
.. TO MAKE CHANGES, EDIT THE SOURCE PYTHON FILE:
.. "gallery/pie_and_polar_charts/bar_of_pie.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_pie_and_polar_charts_bar_of_pie.py>`
        to download the full example code

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

.. _sphx_glr_gallery_pie_and_polar_charts_bar_of_pie.py:


==========
Bar of pie
==========

Make a "bar of pie" chart where the first slice of the pie is
"exploded" into a bar chart with a further breakdown of said slice's
characteristics. The example demonstrates using a figure with multiple
sets of axes and using the axes patches list to add two ConnectionPatches
to link the subplot charts.

.. GENERATED FROM PYTHON SOURCE LINES 12-74

.. code-block:: Python


    import matplotlib.pyplot as plt
    import numpy as np

    from matplotlib.patches import ConnectionPatch

    # make figure and assign axis objects
    fig, (ax1, ax2) = plt.subplots(1, 2, figsize=(9, 5))
    fig.subplots_adjust(wspace=0)

    # pie chart parameters
    overall_ratios = [.27, .56, .17]
    labels = ['Approve', 'Disapprove', 'Undecided']
    explode = [0.1, 0, 0]
    # rotate so that first wedge is split by the x-axis
    angle = -180 * overall_ratios[0]
    wedges, *_ = ax1.pie(overall_ratios, autopct='%1.1f%%', startangle=angle,
                         labels=labels, explode=explode)

    # bar chart parameters
    age_ratios = [.33, .54, .07, .06]
    age_labels = ['Under 35', '35-49', '50-65', 'Over 65']
    bottom = 1
    width = .2

    # Adding from the top matches the legend.
    for j, (height, label) in enumerate(reversed([*zip(age_ratios, age_labels)])):
        bottom -= height
        bc = ax2.bar(0, height, width, bottom=bottom, color='C0', label=label,
                     alpha=0.1 + 0.25 * j)
        ax2.bar_label(bc, labels=[f"{height:.0%}"], label_type='center')

    ax2.set_title('Age of approvers')
    ax2.legend()
    ax2.axis('off')
    ax2.set_xlim(- 2.5 * width, 2.5 * width)

    # use ConnectionPatch to draw lines between the two plots
    theta1, theta2 = wedges[0].theta1, wedges[0].theta2
    center, r = wedges[0].center, wedges[0].r
    bar_height = sum(age_ratios)

    # draw top connecting line
    x = r * np.cos(np.pi / 180 * theta2) + center[0]
    y = r * np.sin(np.pi / 180 * theta2) + center[1]
    con = ConnectionPatch(xyA=(-width / 2, bar_height), coordsA=ax2.transData,
                          xyB=(x, y), coordsB=ax1.transData)
    con.set_color([0, 0, 0])
    con.set_linewidth(4)
    ax2.add_artist(con)

    # draw bottom connecting line
    x = r * np.cos(np.pi / 180 * theta1) + center[0]
    y = r * np.sin(np.pi / 180 * theta1) + center[1]
    con = ConnectionPatch(xyA=(-width / 2, 0), coordsA=ax2.transData,
                          xyB=(x, y), coordsB=ax1.transData)
    con.set_color([0, 0, 0])
    ax2.add_artist(con)
    con.set_linewidth(4)

    plt.show()




.. image-sg:: /gallery/pie_and_polar_charts/images/sphx_glr_bar_of_pie_001.png
   :alt: Age of approvers
   :srcset: /gallery/pie_and_polar_charts/images/sphx_glr_bar_of_pie_001.png, /gallery/pie_and_polar_charts/images/sphx_glr_bar_of_pie_001_2_00x.png 2.00x
   :class: sphx-glr-single-img





.. GENERATED FROM PYTHON SOURCE LINES 75-83

.. admonition:: References

   The use of the following functions, methods, classes and modules is shown
   in this example:

   - `matplotlib.axes.Axes.bar` / `matplotlib.pyplot.bar`
   - `matplotlib.axes.Axes.pie` / `matplotlib.pyplot.pie`
   - `matplotlib.patches.ConnectionPatch`


.. _sphx_glr_download_gallery_pie_and_polar_charts_bar_of_pie.py:

.. only:: html

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

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

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

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

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


.. only:: html

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

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