public static HgaData Parse(string inputString)
{
if (string.IsNullOrEmpty(inputString) || !inputString.StartsWith("#"))
{
return(null);
}
var startIndex = inputString.IndexOf(";", StringComparison.Ordinal);
if (startIndex < 0)
{
return(null);
}
var endIndex = inputString.IndexOf("*", StringComparison.Ordinal);
if (endIndex < 0)
{
return(null);
}
var sentence = inputString.Substring(startIndex, endIndex - startIndex);
var words = sentence.Split(',');
HgaData data = new HgaData();
data.OriginalSentence = inputString;
data.FormatedSentence = sentence;
//NovAtel Status
data.FixStatus = NAFixStatus.None;
if (words.Length >= 2 && words[1].Length != 0)
{
try
{
data.FixStatus = (NAFixStatus)Enum.Parse(typeof(NAFixStatus), words[1], true);
}
catch (Exception ex)
{
string str = ex.Message;
}
}
data.Baseline = ParseWord(words, 2, double.Parse, 0);
// The bearing is the seventh word
data.BearingDegrees = ParseWord(words, 3, double.Parse, 0);
// The elevation is the seventh word
data.ElevationDegrees = ParseWord(words, 4, double.Parse, 0);
data.SatellitesInTrack = ParseWord(words, 9, int.Parse, 0);
data.SatellitesInSolution = ParseWord(words, 10, int.Parse, 0);
return(data);
}
private static void ParseSentence(GpsReading gpsReading, string sentence)
{
var cmd = ParseCommand(sentence);
if (string.IsNullOrEmpty(cmd))
{
return;
}
//GPNTR
switch (cmd.ToUpper())
{
case "$GPGGA":
case "$GNGGA":
case "$BDGGA":
gpsReading.FixedGpsData = GgaData.Parse(sentence);
break;
case "$GPVTG":
case "$GNVTG":
case "$BDVTG":
gpsReading.GroundVector = VtgData.Parser(sentence);
break;
case "$GPRMC":
case "$GNRMC":
case "$BDRMC":
gpsReading.Summary = RmcData.Parse(sentence);
break;
case "#HEADINGA":
gpsReading.Heading = HgaData.Parse(sentence);
break;
case "#BESTUTMA":
gpsReading.Utm = UtmData.Parse(sentence);
break;
case "$GPNTR":
gpsReading.NtrData = NtrData.Parse(sentence);
break;
//case "$GPGSA":
// gpsReading.DopActiveSatellites = GsaData.Parse(sentence);
// break;
//case "$GPGSV":
// gpsReading.SatellitesInView.Add(GsvData.Parse(sentence));
// break;
//case "$GPHDT":
// gpsReading.HdtData = HdtData.Parse(sentence);
// break;
case "$PTNL":
if (sentence.IndexOf("AVR", System.StringComparison.Ordinal) > 0)
{
gpsReading.AvrData = AvrData.Parse(sentence);
}
else if (sentence.IndexOf("VGK", System.StringComparison.Ordinal) > 0)
{
gpsReading.VgkData = VgkData.Parse(sentence);
}
break;
}
}
