value property

Specifies the value to the pointer.

Changing the pointer value will cause the pointer to animate to the new value.

Defaults to 0.

Widget build(BuildContext context) {
   return Container(
       child: SfRadialGauge(
         axes:<RadialAxis>[RadialAxis(
            pointers: <GaugePointer>[WidgetPointer(value: 50,
            )],
           )]
       ));
}