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Two-Level Pie Chart

Two-Level pie chart (or a multi-level pie chart as a generic case) lets you display data in multiple dimensions. For example, you can show detailed data as one level and then that same data grouped into higher-level groups as a second level.

Key implementation details

To achieve the effect in this demo, we create two pie series and specify radius and innerRadius of one to go from 80% to 100% (for the wider slice) and the other is 85% to 95%.

Related tutorials

Demo source