Dear chandran.. I hope this will be useful for u!!
Web Dynpro DoughnutChart API. A doughnut chart is identical to a pie chart, but has a hollow center. Multiple data series can be displayed using concentric doughnut charts. Doughnut charts can be drawn either in two or three dimensions
This type can be called by applications using Web Dynpro, but DO NOT EXTEND OR IMPLEMENT IT!
Type Classification
This interface is part of the Web Dynpro API, so applications may reference it or call any method of it, but they must not implement or extend it.
yours GS sathish
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