getWindSpeedRange method
Get wind speed range (min, max).
Implementation
(double min, double max) getWindSpeedRange() {
final validPoints = data.where((p) => p.windSpeed != null).toList();
if (validPoints.isEmpty) return (0, 30);
var min = validPoints.first.windSpeed!;
var max = validPoints.first.windSpeed!;
for (final point in validPoints) {
if (point.windSpeed! < min) min = point.windSpeed!;
if (point.windSpeed! > max) max = point.windSpeed!;
}
return (min, max);
}