aves/lib/widgets/common/map/leaflet/latlng_utils.dart
2022-04-25 17:12:25 +09:00

14 lines
372 B
Dart

import 'package:latlong2/latlong.dart';
class LatLngUtils {
static LatLng? lerp(LatLng? a, LatLng? b, double t) {
if (a == null && b == null) return null;
final _a = a ?? LatLng(0, 0);
final _b = b ?? LatLng(0, 0);
return LatLng(
_a.latitude + (_b.latitude - _a.latitude) * t,
_a.longitude + (_b.longitude - _a.longitude) * t,
);
}
}