zoneJson function

List<double> zoneJson(
  1. dynamic zone
)

zone as ObservANT takes it, [x1, y1, x2, y2] to three places.

Implementation

List<double> zoneJson(Rect zone) => [
  for (final v in [zone.left, zone.top, zone.right, zone.bottom])
    (v * 1000).round() / 1000,
];