double get value => _value;
set value(double v) {
  if (v < min) {
    v = min;
  } else if (v > max) {
    v = max;
  }
  _value = v;
}
    © 2012 the Dart project authors
Licensed under the Creative Commons Attribution-ShareAlike License v4.0.
    https://api.dart.dev/stable/2.5.0/dart-developer/Gauge/value.html