What ever happend to the d3j.s force directed graph cluster example see on this image?

Question

What ever happend to the d3.js example on this image.

The force directed graph cluster. Second row, 3rd column?

http://vis.stanford.edu/papers/d3

Answer 1

I guess what you are interested in is the shapes surrounding groups of nodes.

The following examples implement it :

• force-multi-foci with convex hulls
• alpha-shapes aka concave hulls in d3

Hope this helps,