Ico is a JavaScript graph library that uses Raphael to draw. This means it can draw charts in multiple browsers (including IE).
Raphael is the only dependency.
- [2011-03-09] Passing default JSHint, and a minified version is now available
- [2011-03-09] Added documentation and published it to http://alexyoung.github.com/ico/
- [2011-03-09] 0.3.0 released: Split project into separate files, added build script, fixes for HorizontalBarGraph
- [2011-03-01] 0.2.2 released: Ico.SparkLine will now work correctly, particularly in IE6
- Sparklines
- Line graphs
- Bar graphs
- Clarity: Use of white-space to help lend clarity to graphs, nominal scale vs. ordinal scale
- Simplicity: Minimal use of decorations and lines, reliance on the Gestalt principle of closure
- Conciseness: Avoidance of graph types that don’t efficiently present data (pie charts, radar maps)
These goals are based on recommendations in Stephen Few’s books:
- Show Me the Numbers: Designing Tables and Graphs to Enlighten
- Information Dashboard Design
Which was generally in turn based on Edward Tufte’s work.
I’ve been rebuilding sections of the library with unittest.js from scriptaculous. Unit tests can be run in a browser by loading the HTML files. I’m also using these tests to help profile the library and improve performance.
- Humanize labels: rather than showing 1,000,000 optionally show “1m”
See index.html for current API usage. This will change as I evolve the API to support the targeted graph types.
MIT License.