Very cool! Dc.js is a very powerful and quick way to build interactive crossfiltered charts. At MapD we built our own visualization frontend using Dc.js as a b

Very cool! Dc.js is a very powerful and quick way to build interactive crossfiltered charts. At MapD we built our own visualization frontend using Dc.js as a base, except we leverage GPUs on the backend both for SQL and rendering data. The upshot is we can scale to multi-billion row datasets with millisecond response times. You can see an example with 200M streaming geocoded tweets here - https://www.mapd.com/demos/tweetmap https://www.mapd.com/demos/tweetmap.