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

    Click :ref:`here <sphx_glr_download_gallery_userdemo_custom_boxstyle01.py>` to download the full example code
.. rst-class:: sphx-glr-example-title

.. _sphx_glr_gallery_userdemo_custom_boxstyle01.py:


=================
Custom Boxstyle01
=================





.. image:: /gallery/userdemo/images/sphx_glr_custom_boxstyle01_001.png
    :class: sphx-glr-single-img





.. code-block:: python

    from matplotlib.path import Path


    def custom_box_style(x0, y0, width, height, mutation_size, mutation_aspect=1):
        """
        Given the location and size of the box, return the path of
        the box around it.

         - *x0*, *y0*, *width*, *height* : location and size of the box
         - *mutation_size* : a reference scale for the mutation.
         - *aspect_ratio* : aspect-ration for the mutation.
        """

        # note that we are ignoring mutation_aspect. This is okay in general.

        # padding
        mypad = 0.3
        pad = mutation_size * mypad

        # width and height with padding added.
        width = width + 2 * pad
        height = height + 2 * pad

        # boundary of the padded box
        x0, y0 = x0 - pad, y0 - pad
        x1, y1 = x0 + width, y0 + height

        cp = [(x0, y0),
              (x1, y0), (x1, y1), (x0, y1),
              (x0-pad, (y0+y1)/2.), (x0, y0),
              (x0, y0)]

        com = [Path.MOVETO,
               Path.LINETO, Path.LINETO, Path.LINETO,
               Path.LINETO, Path.LINETO,
               Path.CLOSEPOLY]

        path = Path(cp, com)

        return path


    import matplotlib.pyplot as plt

    fig, ax = plt.subplots(figsize=(3, 3))
    ax.text(0.5, 0.5, "Test", size=30, va="center", ha="center",
            bbox=dict(boxstyle=custom_box_style, alpha=0.2))

    plt.show()


.. _sphx_glr_download_gallery_userdemo_custom_boxstyle01.py:


.. only :: html

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



  .. container:: sphx-glr-download

     :download:`Download Python source code: custom_boxstyle01.py <custom_boxstyle01.py>`



  .. container:: sphx-glr-download

     :download:`Download Jupyter notebook: custom_boxstyle01.ipynb <custom_boxstyle01.ipynb>`


.. only:: html

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

    Keywords: matplotlib code example, codex, python plot, pyplot
    `Gallery generated by Sphinx-Gallery
    <https://sphinx-gallery.readthedocs.io>`_
