Circular packing or circular treemap allows to visualize a hierarchic organization. It is an equivalent of a treemap or a dendrogram, where each node of the tree is represented as a circle and its sub-nodes are represented as circles inside of it.
Here is the template I start with when needing to build a circular packing with one level of hierarchy. Input data is a .csv
file giving features for each node. Circle size an color depends on these features. You can drag circles to reorganize, and hover them for more information.
A selection of examples showing the application of the basic concept to real life dataset.