Multilevel Tree Map
In a Tree Map the rectangle is divided into smaller rectangles with their size representing the value of each data item. Those smaller rectangles can in turn be divided into even smaller ones creating a sub-treemap.
Key implementation details
Treemap is part of the hierarchy module of amCharts. We configure all the data fields on the Treemap and set its initialDepth to 2 to display two levels of data. We then process our dataset into a structure suitable for a hierarchy chart. And, finally, we add logos as bullets for the top level items.
Related tutorials
Demo source