public static ObservableCollection <BikeStationViewModel> GetNearStations(Location coordinate, IEnumerable <BikeStationViewModel> allStations, bool from)
{
//return collection
ObservableCollection <BikeStationViewModel> collection = new ObservableCollection <BikeStationViewModel>();
if (allStations != null)
{
List <BikeStationViewModel> stations = null;
foreach (BikeStationViewModel station in allStations)
{
if (from)
{
station.WalkDistanceTo = GeoMath.ComputeDistance(station.Location.Latitude, station.Location.Longitude, coordinate.Latitude, coordinate.Longitude);
}
else
{
station.WalkDistanceFrom = GeoMath.ComputeDistance(station.Location.Latitude, station.Location.Longitude, coordinate.Latitude, coordinate.Longitude);
}
}
if (from)
{
stations = allStations.OrderBy(x => x.WalkDistanceTo).Take(5).ToList();
}
else
{
stations = allStations.OrderBy(x => x.WalkDistanceFrom).Take(5).ToList();
}
foreach (BikeStationViewModel station in stations)
{
collection.Add(station);
}
}
else
{
throw new Exception(AppResources.Message_StationsNotLoaded);
}
return(collection);
}
