radius property

String radius
final

Radius for placing the annotation.

The value ranges from 0% to 100%.

Defaults to 0%

Widget build(BuildContext context) {
   return Container(
       child: SfCircularChart(
           annotations: <CircularChartAnnotation>[
               CircularChartAnnotation(
                   radius: '10%'
                   child: Container(
                   child: const Text('Empty data'),
              ),
             ),
            ],
       ));
}

Implementation

final String radius;