Protovis
Protovis composes custom views of data with simple marks such as bars and dots. Unlike low-level graphics libraries that
quickly become tedious for visualization, Protovis defines marks through
dynamic properties that encode data, allowing inheritance, scales and layouts to simplify construction.Protovis is free and open-source, provided under
the BSD
License. It uses JavaScript
and SVG for web-native
visualizations; no plugin required (though you will need a modern web
browser)! Although programming experience is helpful, Protovis is
mostly declarative and designed to be learned by
example.Protovis is no longer under active
development.
The final release
of Protovis was v3.3.1 (4.7
MB). The Protovis team is now developing a new visualization
library, D3.js, with
improved support for animation and interaction. D3 builds on many of the
concepts in Protovis; for more details, please read the introduction
and browse the examples.This project was led by Mike Bostock and Jeff Heer of the Stanford Visualization Group, with
significant help from Vadim Ogievetsky. We welcome
your comments and
suggestions.