Python SVG Charting Library
Project description
Status and License
svg.charts is a port of 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.
You can install it with easy_install svg.charts, or from the subversion repository with easy_install svg.charts==dev.
Getting Started
svg.charts has some examples (taken directly from the reference implementation) in 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 web app can be found in jaraco.site.charts. If the site is working, you can see the rendered output here.
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. Please use that site for reporting bugs and requesting help. Patches are also welcome.
Changes
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 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
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