d3-plugins

A year or two, I would have agreed with you. However, I've been working on a new project in D3 over the past month and I've realized that it now has so many mature, built-in visualization layouts that almost anything you'd want to do can be done out of the box with a little bit of tweaking. See, for example, the layouts in https://github.com/mbostock/d3/wiki/Layouts (which include a pretty tree layout) as well as the axis/timeseries handling built into d3.scale/time/svg. Granted if you're doing a completely new visualization, you're going to have to do a lot of custom stuff, but there are a LOT of helpers built in these days. The biggest learning hump for me was understanding the way data is bound to DOM elements, and how a mismatch between the data and the selected DOM elements is handled. I never really understood until I read Mike Bost

Yes. I will probably add the core wordtree layout as a plugin to https://github.com/d3/d3-plugins The whole application ties together text processing, data retrieval, the wordtree and longscroll.js for fast rendering of the text view on the right-hand side: https://github.com/d3/d3-plugins/tree/master/longscroll

Great tool, it heavily uses chroma.js http://vis4.net/blog/posts/avoid-equidistant-hsv-colors/ https://github.com/gka/chroma.js The HCL color space is also available in this d3 module: https://github.com/d3/d3-plugins/tree/master/cie