explodeOffset property
Offset of exploded slice. The value ranges from 0% to 100%.
Defaults to 20%.
Widget build(BuildContext context) {
   return Container(
       child: SfCircularChart(
           series: <DoughnutSeries<ChartData, String>>[
               DoughnutSeries<ChartData, String>(
                 explode: true,
                 explodeOffset: '30%'
               ),
           ],
       )
   );
}
Implementation
final String explodeOffset;