/// <summary>
/// Calculate WGS84 coordinates from Cartesian
/// </summary>
/// <param name="p"> Cartesian coordenates of the object</param>
/// <param name="SIC">SIC of the radar which detected the object, to know which radar is and where it's placed </param>
/// <returns>Object WGS84 coordinates</returns>
public PointLatLng ComputeWGS_84_from_Cartesian(Point p, string SIC)
{
PointLatLng pos = new PointLatLng();
double X = p.X;
double Y = p.Y;
CoordinatesXYZ ObjectCartesian = new CoordinatesXYZ(X, Y, 0); //We pass from Point to CoordinatesXYZ to be able to work with the GeoUtils library
PointLatLng AirportPoint = GetCoordenatesSMRMALT(Convert.ToInt32(SIC)); //We get the Radar coordinates from its SIC
CoordinatesWGS84 AirportGeodesic = new CoordinatesWGS84(AirportPoint.Lat * (Math.PI / 180), AirportPoint.Lng * (Math.PI / 180)); //We went from PointLatLng to Coordinates WGS84 to be able to work with GeoUtils. Coordinates must be passed from degrees to radians
GeoUtils geoUtils = new GeoUtils();
CoordinatesWGS84 MarkerGeodesic = geoUtils.change_system_cartesian2geodesic(ObjectCartesian, AirportGeodesic); //We apply the change from CoordiantesXYZ to Coordinate GS83
geoUtils = null;
double LatitudeWGS_84_map = MarkerGeodesic.Lat * (180 / Math.PI);
double LongitudeWGS_84_map = MarkerGeodesic.Lon * (180 / Math.PI);
pos.Lat = LatitudeWGS_84_map;
pos.Lng = LongitudeWGS_84_map;
return(pos);
}
public double[] GetWGS84Coordinates()
{
if (!Double.IsNaN(wgs84latitude))
{
double[] wgs84 = { wgs84latitude, wgs84longitude };
return(wgs84);
}
else
{
if (GetTypeOfMessage() == "SMR")
{
GeoUtils geoUtils = new GeoUtils();
Coordinates radarCoordinates = utilities.GetCoordinatesOfRadar("SMRLebl");
CoordinatesWGS84 radarWGS84 = new CoordinatesWGS84(radarCoordinates.GetLatitude() * (Math.PI / 180.0), radarCoordinates.GetLongitude() * (Math.PI / 180.0));
CoordinatesXYZ objectCartesian = new CoordinatesXYZ(cartesianX, cartesianY, 0);
CoordinatesXYZ objectGeocentric = geoUtils.change_radar_cartesian2geocentric(radarWGS84, objectCartesian);
CoordinatesWGS84 objectWGS84 = geoUtils.change_geocentric2geodesic(objectGeocentric);
double[] wgs84 = { objectWGS84.Lat *(180.0 / Math.PI), objectWGS84.Lon *(180.0 / Math.PI) };
return(wgs84);
}
else if (GetTypeOfMessage() == "MLAT")
{
GeoUtils geoUtils = new GeoUtils();
Coordinates radarCoordinates = utilities.GetCoordinatesOfRadar("ARPLebl");
CoordinatesWGS84 radarWGS84 = new CoordinatesWGS84(radarCoordinates.GetLatitude() * (Math.PI / 180.0), radarCoordinates.GetLongitude() * (Math.PI / 180.0));
CoordinatesXYZ objectCartesian = new CoordinatesXYZ(cartesianX, cartesianY, 0);
CoordinatesXYZ objectGeocentric = geoUtils.change_radar_cartesian2geocentric(radarWGS84, objectCartesian);
CoordinatesWGS84 objectWGS84 = geoUtils.change_geocentric2geodesic(objectGeocentric);
double[] wgs84 = { objectWGS84.Lat *(180.0 / Math.PI), objectWGS84.Lon *(180.0 / Math.PI) };
return(wgs84);
}
else
{
return(null);
}
}
}
