public override void processEvents()
{
// removing a sentence possibly store in the queue
int qlen = SentenceQueue.Count();
if (qlen > 0)
{
string sentence = SentenceQueue[qlen - 1];
SentenceQueue.RemoveAt(qlen - 1);
// decode the GPRMC sentence
string[] tokens = parseNMEASentence(sentence);
if (tokens[0] == "$GPRMC")
{
decodeGPRMCTokens(tokens,
out LatitudeAsDecimal,
out LatDegrees,
out LatMinutes,
out LongitudeAsDecimal,
out LongDegrees,
out LongMinutes,
out SpeedOverGround,
out CourseOverGround,
out UTCDateTime);
}
// ************** time retrieved and stored **********
}
}
public override void processEvents()
{
// removing a sentence possibly store in the queue
int qlen = SentenceQueue.Count();
if (qlen > 0)
{
string sentence = SentenceQueue[qlen - 1];
SentenceQueue.RemoveAt(qlen - 1);
//Console.WriteLine(sentence);
List<string> args = parseNMEASentence(string2Bytes(sentence));
if (args[0] == "GPRMC")
{ // GPRMC sentence
// Field 1: UTC Time
string thetime = args[1]; // first argument should be the time in hhmmss.sss format
if (thetime.Length >=6)
{
LastUTCHour = (thetime[0] - '0') * 10 + thetime[1] - '0';
LastUTCMinute = (thetime[2] - '0') * 10 + thetime[3] - '0';
LastUTCSecond = (thetime[4] - '0') * 10 + thetime[5] - '0';
if (thetime.Length >=8) LasUTCMillisecond = (thetime[7] - '0') * 10 + thetime[8] - '0';
}
// Field 2: Valid Data (A - valid, V - invalid)
MRCStatus = args[2][0] == 'A' ? true : false;
if (MRCStatus)
{
// Field 3-4: Latitude in format ddmm.mmmm and latitude hemisphere (N/S)
string latitude = args[3];
LatDegrees = (latitude[0] - '0') * 10 + latitude[1] - '0';
LatMinutes = (latitude[2] - '0') * 10 + latitude[3] - '0';
LatDeciminutes = (latitude[5] - '0') * 1000 + (latitude[6] - '0') * 100 + (latitude[7] - '0') * 10 + latitude[8] - '0';
LatDegrees *= (args[4][0] == 'N') ? 1 : -1;
// Field 5 - 6: Longitude in format dddmm.mmmm and longitude hemisphere (E/W)
string longitude = args[5];
LongDegrees = (longitude[0] - '0') * 100 + (longitude[1] - '0') * 10 + longitude[2] - '0';
LongMinutes = (longitude[3] - '0') * 10 + longitude[4] - '0';
LongDeciminutes = (longitude[6] - '0') * 1000 + (longitude[7] - '0') * 100 + (longitude[8] - '0') * 10 + longitude[9] - '0';
LongDegrees *= args[6][0] == 'E' ? 1 : -1;
}
else
{
LatDegrees = LatMinutes = 0;
LongDegrees = LongMinutes = LongDeciminutes = 0;
}
//Field 7: Speed over ground
if (MRCStatus)
{
string speed = args[7];
if (speed.Length > 0)
SpeedOverGround = Convert.ToDouble(speed);
else
SpeedOverGround = -1;
// Field 8: course over ground
string course = args[8];
if (course.Length > 0)
CourseOverGround = Convert.ToDouble(course);
else
CourseOverGround = -1;
// Field 9: Date
string thedate = args[9];
int day, month, year;
day = (thedate[0] - '0') * 10 + thedate[1] - '0';
month = (thedate[2] - '0') * 10 + thedate[3] - '0';
year = (thedate[4] - '0') * 10 + thedate[5] - '0';
UTCDateTime = new DateTime(2000 + year, month, day, LastUTCHour, LastUTCMinute, LastUTCSecond);
}
else
{
SpeedOverGround = -1;
CourseOverGround = -1;
UTCDateTime = DateTime.Today;
}
// Field 10 - 11: Magnetic Variation (E/W)
/* if (MRCStatus)
{
string magvar = args[10];
if (magvar.Length > 0)
{
MagVariation = Convert.ToDouble(magvar);
MagVariation *= args[11][0] == 'E' ? 1 : -1;
} els
}
else MagVariation = -1; */
}
// ************** time retrieved and stored **********
}
}