Sunburst chart is useful for visualizing hierarchical data. The center circle represents the root level in the hierarchy, with outer circles representing the higher levels of the hierarchy.
Data points can be easily annotated with labels to help improve the readability of data.
Legends provide additional information helpful in identifying root nodes in a sunburst chart. They can be docked to the left, right, top, or bottom positions around the chart area. By clicking a legend item, users can toggle segment visibility or highlight the segment.
The end user experience is greatly enhanced by a set of included user interaction features, such as selection and tooltips.
Tooltips display a pop-up with additional information when the pointer hovers over a data point.