public void Reset()
{
readBuffer = "";
partialFix = null;
partialFixSentenceType = NMEASentenceType.Unknown;
haveGGA = false;
haveRMC = false;
lastGGATimestamp = new DateTime(0);
lastRMCTimestamp = new DateTime(0);
fixTriggerSentence = NMEASentenceType.Unknown;
savedFix = null;
m_MostRecentGPSFix = null;
gsaData = null;
partialSatelliteVehicles = null;
partialSatelliteVehicleIndex = 0;
m_MostRecentSatelliteVehicles = null;
lastGSVMessageNumber = 0;
}
private void ProcessGSA(string[] parts)
{
// Check that we have the correct number of parts.
if (parts.Length != 18)
{
CallOnLogEvent("Invalid GSA sentence.");
return;
}
// Record the information from the packet in a new object.
GSAData newGsaData = new GSAData();
newGsaData.timeReceived = DateTime.Now;
// Extract the PDOP leaving it set to 0 if this fails.
if (! parts[15].Equals(String.Empty))
{
double temp = 0;
if (ParseDouble(parts[15], ref temp))
newGsaData.PDOP = temp;
}
// Extract the HDOP leaving it set to 0 if this fails.
if (! parts[16].Equals(String.Empty))
{
double temp = 0;
if (ParseDouble(parts[16], ref temp))
newGsaData.HDOP = temp;
}
// Extract the VDOP leaving it set to 0 if this fails.
if (! parts[17].Equals(String.Empty))
{
double temp = 0;
if (ParseDouble(parts[17], ref temp))
newGsaData.VDOP = temp;
}
// Determine the fix type.
newGsaData.fixType = GPSFixTypes.Invalid;
switch (parts[2])
{
case "2":
newGsaData.fixType = GPSFixTypes.Fix2D;
break;
case "3":
newGsaData.fixType = GPSFixTypes.Fix3D;
break;
}
// Count the number of satellites in the fix.
int numSatellitesInFix = 0;
for (int i = 3; i <= 14; i++)
{
if (! parts[i].Equals(String.Empty))
numSatellitesInFix++;
}
// If there were any satellites, record the vehicle IDs.
newGsaData.satellitesInFix = new int[numSatellitesInFix];
if (numSatellitesInFix > 0)
{
int offset = 0;
for (int i = 3; i <= 14; i++)
{
if (! parts[i].Equals(String.Empty))
{
try
{
newGsaData.satellitesInFix[offset++] = int.Parse(parts[i]);
}
catch
{
throw new Exception("Invalid satellite vehicle ID: " + parts[i]);
}
}
}
}
// Make the data available.
gsaData = newGsaData;
}
public void Reset()
{
readBuffer = "";
partialFix = null;
partialFixSentenceType = NMEASentenceType.Unknown;
haveGGA = false;
haveRMC = false;
lastGGATimestamp = new DateTime(0);
lastRMCTimestamp = new DateTime(0);
fixTriggerSentence = NMEASentenceType.Unknown;
savedFix = null;
m_MostRecentGPSFix = null;
gsaData = null;
partialSatelliteVehicles = null;
partialSatelliteVehicleIndex = 0;
m_MostRecentSatelliteVehicles = null;
lastGSVMessageNumber = 0;
}
private void ProcessGSA(string[] parts)
{
// Check that we have the correct number of parts.
if (parts.Length != 18)
{
CallOnLogEvent("Invalid GSA sentence.");
return;
}
// Record the information from the packet in a new object.
GSAData newGsaData = new GSAData();
newGsaData.timeReceived = DateTime.Now;
// Extract the PDOP leaving it set to 0 if this fails.
if (!parts[15].Equals(String.Empty))
{
double temp = 0;
if (ParseDouble(parts[15], ref temp))
{
newGsaData.PDOP = temp;
}
}
// Extract the HDOP leaving it set to 0 if this fails.
if (!parts[16].Equals(String.Empty))
{
double temp = 0;
if (ParseDouble(parts[16], ref temp))
{
newGsaData.HDOP = temp;
}
}
// Extract the VDOP leaving it set to 0 if this fails.
if (!parts[17].Equals(String.Empty))
{
double temp = 0;
if (ParseDouble(parts[17], ref temp))
{
newGsaData.VDOP = temp;
}
}
// Determine the fix type.
newGsaData.fixType = GPSFixTypes.Invalid;
switch (parts[2])
{
case "2":
newGsaData.fixType = GPSFixTypes.Fix2D;
break;
case "3":
newGsaData.fixType = GPSFixTypes.Fix3D;
break;
}
// Count the number of satellites in the fix.
int numSatellitesInFix = 0;
for (int i = 3; i <= 14; i++)
{
if (!parts[i].Equals(String.Empty))
{
numSatellitesInFix++;
}
}
// If there were any satellites, record the vehicle IDs.
newGsaData.satellitesInFix = new int[numSatellitesInFix];
if (numSatellitesInFix > 0)
{
int offset = 0;
for (int i = 3; i <= 14; i++)
{
if (!parts[i].Equals(String.Empty))
{
try
{
newGsaData.satellitesInFix[offset++] = int.Parse(parts[i]);
}
catch
{
throw new Exception("Invalid satellite vehicle ID: " + parts[i]);
}
}
}
}
// Make the data available.
gsaData = newGsaData;
}
