public GPSHandler()
{
GpsPort = new SerialPort();
_disposed = false;
//Link event from GPS receiver to process data function
GpsPort.NewGPSData += GPSDataEventHandler;
this.GPRMC = new NMEA.GPRMC();
this.GPGGA = new SharpGPS.NMEA.GPGGA();
this.GPGSA = new SharpGPS.NMEA.GPGSA();
this.GPRMC = new SharpGPS.NMEA.GPRMC();
this.PGRME = new SharpGPS.NMEA.GPRME();
this.GPGSV = new SharpGPS.NMEA.GPGSV();
}
/// <summary>
/// Method called when a GPS event occured.
/// This is where we call the methods that parses each kind of NMEA sentence
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void GPSDataEventHandler(object sender, SerialPort.GPSEventArgs e)
{
switch (e.TypeOfEvent)
{
case GPSEventType.GPRMC:
ParseRMC(e.Sentence);
break;
case GPSEventType.GPGGA:
ParseGGA(e.Sentence);
break;
case GPSEventType.GPGLL:
ParseGLL(e.Sentence);
break;
case GPSEventType.GPGSA:
ParseGSA(e.Sentence);
break;
case GPSEventType.GPGSV:
ParseGSV(e.Sentence);
break;
case GPSEventType.PGRME:
ParseRME(e.Sentence);
break;
case GPSEventType.TimeOut:
FireTimeOut();
break;
case GPSEventType.Unknown:
GPSEventArgs e2 = new GPSEventArgs();
e2.TypeOfEvent = e.TypeOfEvent;
e2.Sentence = e.Sentence;
_NewGPSFix(this, e2);
break;
default: break;
}
}
/// <summary>
/// Disposes the GpsHandler and if nessesary calls Stop()
/// </summary>
public void Dispose()
{
if (!_disposed)
{
Stop();
GpsPort.Dispose();
this.GPGGA = null;
this.GPGLL = null;
this.GPGSA = null;
this.GPRMC = null;
this.PGRME = null;
GpsPort = null;
//this.GPGSV = null;
_disposed = true;
}
GC.SuppressFinalize(this);
}