It doesn't expose the full power of NVD3 or D3, rather, it's a convenient tool for generating simple charts. It's especially convenient when using a server-side web framework with a template engine, since you can just render the data into the HTML.
Provides a reusable set of charts built on top of d3. Doesn't allow the full power of d3, but simplifies the process of drawing charts specifically.
The original. A library for transforming HTML, CSS and SVG to create data-driven documents and applications.
A library similar in scope and indent to nvd3-tags, only it brings with it the whole machinery of Angular.