A mix between a Cluster and a Bundle Layout of d3js. Reprogrammed for AngularJS and Idea from http://www.theguardian.com/world/interactive/2013/apr/30/violence-guns-best-selling-video-games
The Directive is located in js/view.js.
to get started use: <d3cluster-Directive config="config"></d3cluster-Directive>
The repo contains a whole AngularJS example. You only have to start it on a (local) Webserver