offsetToCrs method
Implementation
LatLng offsetToCrs(Offset offset, [double? zoom]) {
final focalStartPt = project(center, zoom ?? this.zoom);
final point =
(offset.toPoint() - (nonRotatedSize / 2.0)).rotate(rotationRad);
final newCenterPt = focalStartPt + point;
return unproject(newCenterPt, zoom ?? this.zoom);
}