D3 role bubbles module

The D3 role bubbles module provides a bubble chart visualization of all the association types of the topic map in Wandora. The module uses Wandora's embedded HTTP server to display a graph that is created with D3.js. The module's service is accessible by URL

http://127.0.0.1:8898/d3association_role_bubbles

The bubbles represent the different roles in the topic map and the bubble size the amount of roles with that type.

Note that because of the D3 library browser support for the visualizations in Wandora are limited to IE9+ and up to date versions of Firefox, Chrome (+Chromium), Safari and Opera.