|
|
|
|
``svg.charts`` - Package for generating SVG Charts in Python
|
|
|
|
|
============================================================
|
|
|
|
|
|
|
|
|
|
.. contents::
|
|
|
|
|
|
|
|
|
|
Status and License
|
|
|
|
|
------------------
|
|
|
|
|
|
|
|
|
|
``svg.charts`` is a pure-python library for generating charts and graphs
|
|
|
|
|
in SVG, originally based on the SVG::Graph Ruby package by Sean E. Russel.
|
|
|
|
|
|
|
|
|
|
``svg.charts`` supercedes ``svg_charts`` 1.1 and 1.2.
|
|
|
|
|
|
|
|
|
|
``svg.charts`` is written by Jason R. Coombs. It is licensed under an
|
|
|
|
|
`MIT-style permissive license
|
|
|
|
|
<https://py-svg.svn.sourceforge.net/svnroot/py-svg/trunk/docs/license.txt>`_.
|
|
|
|
|
|
|
|
|
|
You can install it with ``easy_install svg.charts``, or from the
|
|
|
|
|
`subversion repository
|
|
|
|
|
<https://py-svg.svn.sourceforge.net/svnroot/py-svg/trunk#egg=svg.charts-dev>`_ with
|
|
|
|
|
``easy_install svg.charts==dev``.
|
|
|
|
|
|
|
|
|
|
Acknowledgements
|
|
|
|
|
----------------
|
|
|
|
|
|
|
|
|
|
``svg.charts`` depends heavily on lxml and cssutils. Thanks to the
|
|
|
|
|
contributors of those projects for stable, performant, standards-based
|
|
|
|
|
packages.
|
|
|
|
|
|
|
|
|
|
Sean E. Russel for creating the SVG::Graph Ruby package from which this
|
|
|
|
|
Python port was originally derived.
|
|
|
|
|
|
|
|
|
|
Leo Lapworth for creating the SVG::TT::Graph package which the Ruby
|
|
|
|
|
port was based on.
|
|
|
|
|
|
|
|
|
|
Stephen Morgan for creating the TT template and SVG.
|
|
|
|
|
|
|
|
|
|
Getting Started
|
|
|
|
|
---------------
|
|
|
|
|
|
|
|
|
|
``svg.charts`` has some examples (taken directly from the reference implementation)
|
|
|
|
|
in `tests/testing.py <https://py-svg.svn.sourceforge.net/svnroot/py-svg/trunk/tests/testing.py>`_.
|
|
|
|
|
These examples show sample usage of the various chart types. They should provide a
|
|
|
|
|
good starting point for learning the usage of the library.
|
|
|
|
|
|
|
|
|
|
An example of using ``svg.charts`` in a `CherryPy
|
|
|
|
|
<http://www.cherrypy.org/>`_ web app can be found in `jaraco.site.charts
|
|
|
|
|
<https://svn.jaraco.com/jaraco/python/jaraco.site/trunk/jaraco/site/charts.py>`_.
|
|
|
|
|
If the site is working, you can see the `rendered output here
|
|
|
|
|
<http://www.jaraco.com/charts/plot>`_.
|
|
|
|
|
|
|
|
|
|
Upgrade Notes
|
|
|
|
|
-------------
|
|
|
|
|
|
|
|
|
|
Upgrading from 1.x to 2.0
|
|
|
|
|
|
|
|
|
|
I suggest removing SVG 1.0 from the python installation. This involves removing the SVG directory (or svg_chart*) from site-packages.
|
|
|
|
|
|
|
|
|
|
Change import statements to import from the new namespace.
|
|
|
|
|
|
|
|
|
|
from SVG import Bar
|
|
|
|
|
Bar.VerticalBar(...)
|
|
|
|
|
becomes
|
|
|
|
|
from svg.charts.bar import VerticalBar
|
|
|
|
|
VerticalBar(...)
|
|
|
|
|
|
|
|
|
|
More To-Dos
|
|
|
|
|
-----------
|
|
|
|
|
|
|
|
|
|
- Documentation! This package desperately needs some high-level,
|
|
|
|
|
tutorial-style how-tos, and not just links to example code.
|
|
|
|
|
- Implement javascript-based animation (See JellyGraph for a Silverlight example of what simple animation can do for a charting library).
|
|
|
|
|
|
|
|
|
|
Reporting Bugs and Getting Help
|
|
|
|
|
-------------------------------
|
|
|
|
|
|
|
|
|
|
This project is `hosted at sourceforge
|
|
|
|
|
<https://sourceforge.net/projects/py-svg/>`_. Please use that site for
|
|
|
|
|
reporting bugs and requesting help. Patches are also welcome.
|
|
|
|
|
|
|
|
|
|
Changes
|
|
|
|
|
-------
|
|
|
|
|
|
|
|
|
|
2.0.6
|
|
|
|
|
~~~~~
|
|
|
|
|
|
|
|
|
|
* Fixed bug where x axis labels would not be rendered properly if the
|
|
|
|
|
largest value was the same as the largest visible x value on the
|
|
|
|
|
chart.
|
|
|
|
|
|
|
|
|
|
2.0.5
|
|
|
|
|
~~~~~
|
|
|
|
|
|
|
|
|
|
* Altered the way CSS files are loaded, so they can be more easily
|
|
|
|
|
customized by subclasses (and less dependent on the class names).
|
|
|
|
|
|
|
|
|
|
2.0.4
|
|
|
|
|
~~~~~
|
|
|
|
|
|
|
|
|
|
* A small attempt to improve the documentation - added links to examples
|
|
|
|
|
that already exist.
|
|
|
|
|
|
|
|
|
|
2.0.3
|
|
|
|
|
~~~~~
|
|
|
|
|
|
|
|
|
|
* Fix IndexError in ``svg.charts.plot.Plot.field_size`` when there are
|
|
|
|
|
only two values returned by float_range (in the case there are only
|
|
|
|
|
two different 'y' values in the data) and scale_y_integers == True.
|
|
|
|
|
Credit to `Jean Schurger <http://schurger.org/>`_ for the patch.
|
|
|
|
|
* Fixed problem in setup.py installing on Unix OS (case sensitivity of
|
|
|
|
|
readme.txt). Credit to Luke Miller and Jean Schurger for supplying
|
|
|
|
|
a patch for this issue.
|
|
|
|
|
|
|
|
|
|
2.0.2
|
|
|
|
|
~~~~~
|
|
|
|
|
|
|
|
|
|
* Updated cssutils dependency to 0.9.6 (currently in beta) to require the CSS profiles support.
|
|
|
|
|
* Completed an SVG CSS profile according to the SVG 1.1 spec.
|
|
|
|
|
|
|
|
|
|
2.0.1
|
|
|
|
|
~~~~~
|
|
|
|
|
|
|
|
|
|
* Added preliminary SVG CSS profile, suitable for stock CSS properties.
|
|
|
|
|
|
|
|
|
|
2.0
|
|
|
|
|
~~~~~
|
|
|
|
|
|
|
|
|
|
* First major divergence from the Ruby reference implementation
|
|
|
|
|
* Now implemented as a namespace package (svg.charts instead of svg_charts)
|
|
|
|
|
* Changed XML processor to lxml
|
|
|
|
|
* Enabled extensible css support using cssutils, greatly reducing static CSS
|
|
|
|
|
* Renamed modules and methods to be more consistent with PEP-8 naming convention
|
|
|
|
|
|
|
|
|
|
1.2
|
|
|
|
|
~~~
|
|
|
|
|
|
|
|
|
|
* Bug fixes
|
|
|
|
|
|
|
|
|
|
1.1
|
|
|
|
|
~~~
|
|
|
|
|
|
|
|
|
|
* First public release
|
