Remove uninformative entries from glossary.

Remove some entries in the glossary which are only referred to once, in
the usage tutorial (note that the usage tutorial explitictly explains
the terms "raster" and "vector" graphics just before the renderer table.

Author: anntzer

INSTALL.rst

@@ -147,14 +147,15 @@ Optionally, you can also install a number of packages to enable better user
 interface toolkits. See :ref:`what-is-a-backend` for more details on the
 optional Matplotlib backends and the capabilities they provide.
 
-* :term:`tk` (>= 8.3, != 8.6.0 or 8.6.1): for the Tk-based backends;
+* `Tk <https://docs.python.org/3/library/tk.html>`_ (>= 8.3, != 8.6.0 or
+  8.6.1): for the Tk-based backends;
 * `PyQt4 <https://pypi.org/project/PyQt4>`_ (>= 4.6) or
   `PySide <https://pypi.org/project/PySide>`_ (>= 1.0.3): for the Qt4-based
   backends;
 * `PyQt5 <https://pypi.org/project/PyQt5>`_: for the Qt5-based backends;
 * `PyGObject <https://pypi.org/project/PyGObject/>`_: for the GTK3-based
   backends;
-* :term:`wxpython` (>= 4): for the WX-based backends;
+* `wxPython <https://www.wxpython.org/>`_ (>= 4): for the WX-based backends;
 * `cairocffi <https://cairocffi.readthedocs.io/en/latest/>`_ (>= 0.8) or
   `pycairo <https://pypi.org/project/pycairo>`_: for the cairo-based
   backends;

doc/glossary/index.rst

@@ -7,65 +7,10 @@ Glossary
 
 .. glossary::
 
-  AGG
-      The Anti-Grain Geometry (`Agg <http://antigrain.com/>`_) rendering
-      engine, capable of rendering high-quality images
-
-  Cairo
-      The `Cairo graphics <https://cairographics.org>`_ engine
-
-
-  dateutil
-      The `dateutil <https://dateutil.readthedocs.io>`_ library
-      provides extensions to the standard datetime module
-
-  EPS
-      Encapsulated Postscript (`EPS
-      <https://en.wikipedia.org/wiki/Encapsulated_PostScript>`_)
-
-  FreeType
-      `FreeType <https://www.freetype.org/>`_ is a font rasterization
-      library used by matplotlib which supports TrueType, Type 1, and
-      OpenType fonts.
-
-  GDK
-      The Gimp Drawing Kit for GTK+
-
   GTK
       The GIMP Toolkit (`GTK <https://www.gtk.org/>`_) graphical user interface
       library
 
-  JPG
-      The Joint Photographic Experts Group (`JPEG
-      <https://en.wikipedia.org/wiki/Jpeg>`_) compression method and
-      file format for photographic images
-
-  numpy
-      `numpy <http://www.numpy.org/>`_ is the standard numerical
-      array library for python, the successor to Numeric and numarray.
-      numpy provides fast operations for homogeneous data sets and
-      common mathematical operations like correlations, standard
-      deviation, fourier transforms, and convolutions.
-
-  PDF
-      Adobe's Portable Document Format (`PDF
-      <https://en.wikipedia.org/wiki/Portable_Document_Format>`_)
-
-  PNG
-      Portable Network Graphics (`PNG
-      <https://en.wikipedia.org/wiki/Portable_Network_Graphics>`_), a raster
-      graphics format that employs lossless data compression which is more
-      suitable for line art than the lossy jpg format. Unlike the gif format,
-      png is not encumbered by requirements for a patent license.
-
-  PS
-      Postscript (`PS <https://en.wikipedia.org/wiki/PostScript>`_) is a
-      vector graphics ASCII text language widely used in printers and
-      publishing.  Postscript was developed by adobe systems and is
-      starting to show its age: for example is does not have an alpha
-      channel.  PDF was designed in part as a next-generation document
-      format to replace postscript
-
   PyGObject
       `PyGObject <http://www.pygtk.org/>`_ provides Python wrappers for the
       :term:`GTK` widgets library
@@ -77,11 +22,6 @@ Glossary
       and windows; many linux distributions package this as
       'python-qt5' or 'python-qt4'.
 
-  python
-      `python <https://www.python.org>`_ is an object oriented interpreted
-      language widely used for scripting, application development, web
-      application servers, scientific computing and more.
-
   Qt
       `Qt <https://www.qt.io/>`__ is a cross-platform
       application framework for desktop and embedded development.
@@ -96,42 +36,12 @@ Glossary
       version of Qt cross-platform application
       framework for desktop and embedded development.
 
-  raster graphics
-      `Raster graphics
-      <https://en.wikipedia.org/wiki/Raster_graphics>`_, or bitmaps,
-      represent an image as an array of pixels which is resolution
-      dependent. Raster graphics are generally most practical for
-      photo-realistic images, but do not scale easily without loss of
-      quality.
-
-  SVG
-      The Scalable Vector Graphics format (`SVG
-      <https://en.wikipedia.org/wiki/Svg>`_).  An XML based vector
-      graphics format supported by many web browsers.
-
-  TIFF
-      Tagged Image File Format (`TIFF
-      <https://en.wikipedia.org/wiki/Tagged_Image_File_Format>`_) is a
-      file format for storing images, including photographs and line
-      art.
-
   Tk
       `Tk <http://www.tcl.tk/>`_ is a graphical user interface for Tcl
       and many other dynamic languages. It can produce rich, native
       applications that run unchanged across Windows, Mac OS X, Linux
       and more.
 
-  vector graphics
-      `vector graphics
-      <https://en.wikipedia.org/wiki/Vector_graphics>`_ use geometrical
-      primitives based upon mathematical equations to represent images
-      in computer graphics. Primitives can include points, lines,
-      curves, and shapes or polygons. Vector graphics are scalable,
-      which means that they can be resized without suffering from
-      issues related to inherent resolution like are seen in raster
-      graphics. Vector graphics are generally most practical for
-      typesetting and graphic design applications.
-
   wxpython
       `wxpython <https://www.wxpython.org/>`_ provides python wrappers
       for the :term:`wxWidgets` library for use with the WX and WXAgg

tutorials/introductory/usage.py

@@ -395,22 +395,18 @@ def my_plotter(ax, data1, data2, param_dict):
 # backend for each; these are *non-interactive backends*, capable of
 # writing to a file):
 #
-# =============   ============   ================================================
-# Renderer        Filetypes      Description
-# =============   ============   ================================================
-# :term:`AGG`     :term:`png`    :term:`raster graphics` -- high quality images
-#                                using the `Anti-Grain Geometry`_ engine
-# PS              :term:`ps`     :term:`vector graphics` -- Postscript_ output
-#                 :term:`eps`
-# PDF             :term:`pdf`    :term:`vector graphics` --
-#                                `Portable Document Format`_
-# SVG             :term:`svg`    :term:`vector graphics` --
-#                                `Scalable Vector Graphics`_
-# :term:`Cairo`   :term:`png`    :term:`raster graphics` and
-#                 :term:`ps`     :term:`vector graphics` -- using the
-#                 :term:`pdf`    `Cairo graphics`_ library
-#                 :term:`svg`
-# =============   ============   ================================================
+# ========  =========  =======================================================
+# Renderer  Filetypes  Description
+# ========  =========  =======================================================
+# AGG       png        raster_ graphics -- high quality images using the
+#                      `Anti-Grain Geometry`_ engine
+# PS        ps,        vector_ graphics -- Postscript_ output
+#           eps
+# PDF       pdf        vector_ graphics -- `Portable Document Format`_
+# SVG       svg        vector_ graphics -- `Scalable Vector Graphics`_
+# Cairo     png, ps,   raster_ or vector_ graphics -- using the Cairo_ library
+#           pdf, svg
+# ========  =========  =======================================================
 #
 # And here are the user interfaces and renderer combinations supported;
 # these are *interactive backends*, capable of displaying to the screen
@@ -450,12 +446,12 @@ def my_plotter(ax, data1, data2, param_dict):
 # .. _Postscript: https://en.wikipedia.org/wiki/PostScript
 # .. _`Portable Document Format`: https://en.wikipedia.org/wiki/Portable_Document_Format
 # .. _`Scalable Vector Graphics`: https://en.wikipedia.org/wiki/Scalable_Vector_Graphics
-# .. _`Cairo graphics`: https://wwW.cairographics.org
+# .. _Cairo: https://www.cairographics.org
 # .. _PyGObject: https://wiki.gnome.org/action/show/Projects/PyGObject
 # .. _pycairo: https://www.cairographics.org/pycairo/
 # .. _cairocffi: https://pythonhosted.org/cairocffi/
 # .. _wxPython: https://www.wxpython.org/
-# .. _TkInter: https://wiki.python.org/moin/TkInter
+# .. _TkInter: https://docs.python.org/3/library/tk.html
 # .. _PyQt4: https://riverbankcomputing.com/software/pyqt/intro
 # .. _PyQt5: https://riverbankcomputing.com/software/pyqt/intro
 #