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.

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.