public static double Distance(GeoPoint point1, GeoPoint point2)
{
var lat1 = point1.Latitude;
var lat2 = point2.Latitude;
var lon1 = point1.Longtitude;
var lon2 = point2.Longtitude;
var R = 6371000000; // m (change this constant to get miles)
var dLat = (lat2 - lat1) * Math.PI / 180;
var dLon = (lon2 - lon1) * Math.PI / 180;
var a = Math.Sin(dLat / 2) * Math.Sin(dLat / 2) +
Math.Cos(lat1 * Math.PI / 180) * Math.Cos(lat2 * Math.PI / 180) *
Math.Sin(dLon / 2) * Math.Sin(dLon / 2);
var c = 2 * Math.Atan2(Math.Sqrt(a), Math.Sqrt(1 - a));
var d = R * c;
// The current result is in mm, division is done to return meters
return Math.Round(d) / 1000;
}
public List<Parking> GetParkingsByBusiness(string businessId, string businessType)
{
long id;
if (!long.TryParse(businessId, out id))
{
WebOperationContext.Current.OutgoingResponse.StatusCode = HttpStatusCode.BadRequest;
return null;
}
List<Parking> parkings;
using (var dataAccess = new ParkingDataAccess())
{
parkings = dataAccess.GetParkingByBusiness(id).ToList();
}
if (!parkings.Any())
{
using (var query = FacebookQueryFactory.CreateQuery())
{
var dictionary =
query.Select("latitude", "longitude").From(FacebookTable.Place).WhereId(id).Execute();
if (dictionary == null)
{
WebOperationContext.Current.OutgoingResponse.SetStatusAsNotFound("Business not found");
return null;
}
var geo = new GeoPoint(double.Parse(dictionary["longitude"]), double.Parse(dictionary["latitude"]));
using (var dataAccess = new ParkingDataAccess())
{
parkings = dataAccess.GetParkingsByGeo(geo, 1000, 10).ToList();
var business = new Business()
{
BusinessType = BusinessType.Facebook,
FacebookId = id,
};
parkings.ForEach(business.RecommendedParkings.Add);
dataAccess.AddBusiness(business);
}
}
}
return parkings;
}
public List<Parking> GetParkingsByGeo(string latitude, string longtitude, string radius)
{
// Convert the request parameters into the right type
double longt;
double lat;
double rad;
if (!double.TryParse(longtitude, out longt)
|| !double.TryParse(latitude, out lat)
|| !double.TryParse(radius, out rad))
{
// The parameters aren't of the right type, close the request
WebOperationContext.Current.OutgoingResponse.StatusCode = HttpStatusCode.BadRequest;
return null;
}
var point = new GeoPoint(longt, lat);
try
{
List<Parking> parkings;
using (var dataAccess = new ParkingDataAccess())
{
parkings = dataAccess.GetParkingsByGeo(point, rad).ToList();
}
return parkings;
}
catch (Exception ex)
{
string message = string.Empty;
while (ex != null)
{
message = string.Format("{0}\nType:{1}\nMessage:{2}", message, ex.GetType().Name, ex.Message);
ex = ex.InnerException;
}
return new List<Parking>() { new Parking() { Name = message } };
}
}
/// <summary>
/// Calculates the distance between two points
/// </summary>
/// <param name="point"></param>
/// <returns></returns>
public double Distance(GeoPoint point)
{
return Distance(this, point);
return Math.Sqrt(Math.Pow((Longtitude - point.Longtitude), 2) + Math.Pow((Latitude - point.Latitude), 2));
}
