dimple
An object-oriented API allowing you to create flexible axis-based charts using d3.js. The intention of this project is to allow analysts who are not necessarily expert JavaScript programmers to create standard (and some not-so-standard) business analytics.
The API will also expose the core d3 objects where possible so that as users gain confidence they can extend the base functionality in whatever way they wish.
For full details and documentation the wiki is available here.