private static string NmeaSenteceToJson(List <NmeaMessage> messages, int offsetInSeconds, int speedMultipler)
{
if (messages.Count != 2)
{
return(null);
}
GpggaMessage gpgga = messages[0] as GpggaMessage;
GprmcMessage rmc = messages[1] as GprmcMessage;
Int32 unixTimestamp = (Int32)(DateTime.UtcNow.Subtract(new DateTime(1970, 1, 1))).TotalSeconds + offsetInSeconds;
// Longitude and Latitude needs to by formatted in the same way as for the project
// Speed is in knots 1 knt = 1.852 km/h
return(string.Format("{{\"quality\": 1, \"timestamp_us\": 0, \"timestamp\": {0}, \"altitude\": {1}, \"precision\": {2}, \"longitude\": {3}, \"latitude\": {4}, \"satellites\": {5}, \"speed\": {6}}}",
unixTimestamp, gpgga.Altitude, gpgga.Hdop, gpgga.Longitude * 100, gpgga.Latitude * 100, gpgga.NumberOfSatellites, rmc.Speed * 1.852 * speedMultipler));
}
public GpsDataEventArgs(GprmcMessage gpsLocation)
{
Latitude = gpsLocation.Latitude;
Longitude = gpsLocation.Longitude;
Speed = gpsLocation.Speed;
}
