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

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

.. _sphx_glr_gallery_misc_font_indexing.py:


=============
Font Indexing
=============

A little example that shows how the various indexing into the font
tables relate to one another.  Mainly for mpl developers....






.. rst-class:: sphx-glr-script-out

 Out:

 .. code-block:: none

    (6, 0, 519, 576)
    36 57 65 86
    AV 0
    AV 0
    AV 0
    AV 0




|


.. code-block:: python

    from __future__ import print_function
    import matplotlib
    from matplotlib.ft2font import FT2Font, KERNING_DEFAULT, KERNING_UNFITTED, KERNING_UNSCALED


    fname = matplotlib.get_data_path() + '/fonts/ttf/DejaVuSans.ttf'
    font = FT2Font(fname)
    font.set_charmap(0)

    codes = font.get_charmap().items()
    #dsu = [(ccode, glyphind) for ccode, glyphind in codes]
    #dsu.sort()
    #for ccode, glyphind in dsu:
    #    try: name = font.get_glyph_name(glyphind)
    #    except RuntimeError: pass
    #    else: print('% 4d % 4d %s %s' % (glyphind, ccode, hex(int(ccode)), name))


    # make a charname to charcode and glyphind dictionary
    coded = {}
    glyphd = {}
    for ccode, glyphind in codes:
        name = font.get_glyph_name(glyphind)
        coded[name] = ccode
        glyphd[name] = glyphind

    code = coded['A']
    glyph = font.load_char(code)
    print(glyph.bbox)
    print(glyphd['A'], glyphd['V'], coded['A'], coded['V'])
    print('AV', font.get_kerning(glyphd['A'], glyphd['V'], KERNING_DEFAULT))
    print('AV', font.get_kerning(glyphd['A'], glyphd['V'], KERNING_UNFITTED))
    print('AV', font.get_kerning(glyphd['A'], glyphd['V'], KERNING_UNSCALED))
    print('AV', font.get_kerning(glyphd['A'], glyphd['T'], KERNING_UNSCALED))


.. _sphx_glr_download_gallery_misc_font_indexing.py:


.. only :: html

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



  .. container:: sphx-glr-download

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



  .. container:: sphx-glr-download

     :download:`Download Jupyter notebook: font_indexing.ipynb <font_indexing.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>`_