svg.charts 2.0

Python SVG Charting Library

Contents

• Status and License

• Getting Started

• Upgrade Notes

• More To-Dos

• Changes

  • 2.0

  • 1.2

  • 1.1

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 <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.

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

• Implement javascript-based animation (See JellyGraph for a Silverlight example of what simple animation can do for a charting library).

Changes

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