distanceBetween static method
Calculate the distance between origin and destination.
Implementation
static double distanceBetween(
double startLat,
double startLon,
double endLat,
double endLon,
) {
final dLat = _toRadians(endLat - startLat);
final dLon = _toRadians(endLon - startLon);
final a = pow(sin(dLat / 2), 2) +
pow(sin(dLon / 2), 2) *
cos(_toRadians(startLat)) *
cos(_toRadians(endLat));
final c = 2 * asin(sqrt(a));
return 6378137.0 * c;
}