Simple Sunburst Part of PowerCharts XT
A Sunburst chart is really just a treemap which uses a radial layout (thus the alternative name, “Radial Treemap”). Sunbursts are a series of rings, which represent the different hierarchical levels. The innermost ring is the first level, followed by the second level which shows a breakdown of the components of the first, and so on. Like the more common rectangular treemap, the size of each sections represents the magnitude of some measure.