Hi Hernan,
http://www.blog.telecomfuturecentre.it/wp-content/uploads/files/2012/09/Mbb-...
Any hints where to start? Any example to start on?
This is a very specific visualization. So far we do not have any specific support for this. The closest is probably Sunburst. You can have a look at it by trying out the examples (look for the class SunburstExample).
Alexandre