Hi Raphael,
Thank you for writing.
Currently, this is not supported out of the box in RadChartView. In addition it is connected to the renderer type not to the data point type so the feedback item is not relevant for this case.
Nevertheless such functionality can be implemented by creating a custom polar renderer. I have attached a sample project that contains an implementation for this functionality.
Please let me know if there is something else I can help you with.
Regards,
Dimitar
Telerik
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