TCustomPolarSeries.DrawRing
TCustomPolarSeries
procedure DrawRing(Const Value: Double; Z: Integer);
Unit
TeePolar
Description
This method draws a "ring" on the Polar charts with a specified "value" radius.
"Z" is the Z position where the ring will be displayed.
You can use TPolarSeries "StartZ" or "EndZ" properties to draw rings at front and at back Z positions respectively:
Series1.DrawRing(1234, Series1.EndZ );