/// <summary>
/// Initializes the NMEA Geographic position, Latitude and Longitude and parses an NMEA sentence
/// </summary>
/// <param name="nmeaSentence"></param>
public GPGLL(string nmeaSentence)
{
try
{
//Split into an array of strings.
string[] split = nmeaSentence.Split(new[] { ',' });
try
{
_position = new Coordinate(GpsHandler.GPSToDecimalDegrees(split[3], split[4]),
GpsHandler.GPSToDecimalDegrees(split[1], split[2]));
}
catch { _position = null; }
try
{
_timeOfSolution = new TimeSpan(int.Parse(split[5].Substring(0, 2)),
int.Parse(split[5].Substring(2, 2)),
int.Parse(split[5].Substring(4)));
}
catch
{
_timeOfSolution = null; // TimeSpan.Zero;
}
_dataValid = (split[6] == "A");
}
catch { }
}
/// <summary>
/// Initializes the NMEA Recommended minimum specific GPS/Transit data and parses an NMEA sentence
/// </summary>
/// <param name="nmeaSentence"></param>
public GPRMC(string nmeaSentence)
{
try
{
//Split into an array of strings.
string[] split = nmeaSentence.Split(new[] { ',' });
//Extract date/time
try
{
string[] dateTimeFormats = { "ddMMyyHHmmss", "ddMMyy", "ddMMyyHHmmss.FFFFFF" };
if (split[9].Length >= 6) //Require at least the date to be present
{
string time = split[9] + split[1]; // +" 0";
_timeOfFix = DateTime.ParseExact(time, dateTimeFormats, GpsHandler.NumberFormatEnUs, System.Globalization.DateTimeStyles.AssumeUniversal);
}
else
{
_timeOfFix = new DateTime();
}
}
catch { _timeOfFix = new DateTime(); }
_status = split[2] == "A" ? StatusEnum.Ok : StatusEnum.Warning;
_position = new Coordinate(GpsHandler.GPSToDecimalDegrees(split[5], split[6]),
GpsHandler.GPSToDecimalDegrees(split[3], split[4]));
double.TryParse(split[7], out _speed);
double.TryParse(split[8], out _course);
double.TryParse(split[10], out _magneticVariation);
}
catch { }
}
public MainForm()
{
InitializeComponent();
Gps = new GpsHandler {
TimeOut = 5
}; //Initialize GPS handler
Gps.NewGpsFix += GpsEventHandler; //Hook up GPS data events to a handler
FrmGpsSettings = new FrmGpsSettings();
}
/// <summary>
/// Initializes the NMEA Global Positioning System Fix Data and parses an NMEA sentence
/// </summary>
/// <param name="nmeaSentence"></param>
public GPGGA(string nmeaSentence)
{
try
{
if (nmeaSentence.IndexOf('*') > 0)
{
nmeaSentence = nmeaSentence.Substring(0, nmeaSentence.IndexOf('*'));
}
//Split into an array of strings.
string[] split = nmeaSentence.Split(new[] { ',' });
if (split[1].Length >= 6)
{
var hrs = 0;
var min = 0;
var sec = 0;
int.TryParse(split[1].Substring(0, 2), out hrs);
int.TryParse(split[1].Substring(2, 2), out min);
int.TryParse(split[1].Substring(4, 2), out sec);
TimeSpan t = new TimeSpan(hrs, min, sec);
DateTime nowutc = DateTime.UtcNow;
nowutc = nowutc.Add(-nowutc.TimeOfDay);
_timeOfFix = nowutc.Add(t);
}
_position = new Coordinate(GpsHandler.GPSToDecimalDegrees(split[4], split[5]),
GpsHandler.GPSToDecimalDegrees(split[2], split[3]));
if (split[6] == "1")
{
FixQuality = FixQualityEnum.GPS;
}
else if (split[6] == "2")
{
FixQuality = FixQualityEnum.DGPS;
}
else
{
FixQuality = FixQualityEnum.Invalid;
}
_noOfSats = Convert.ToByte(split[7]);
double.TryParse(split[8], out _dilution);
double.TryParse(split[9], out _altitude);
_altitudeUnits = split[10][0];
double.TryParse(split[11], out _heightOfGeoid);
int.TryParse(split[13], out _dGPSUpdate);
_dGPSStationID = split[14];
}
catch { }
}
