void
IGCWriter::LogPoint(const NMEAInfo& gps_info)
{
if (!last_valid_point_initialized &&
((gps_info.gps_altitude < fixed(-100))
|| (gps_info.baro_altitude < fixed(-100))
|| !gps_info.location_available))
return;
IGCFix fix;
if (!gps_info.location_available) {
fix = last_valid_point;
fix.gps_valid = false;
} else {
fix.gps_valid = true;
fix.location = gps_info.location;
fix.gps_altitude = (int)gps_info.gps_altitude;
// save last active fix location
last_valid_point = fix;
last_valid_point_initialized = true;
}
fix.time = gps_info.date_time_utc;
fix.pressure_altitude =
gps_info.baro_altitude_available ? (int)gps_info.baro_altitude :
/* fall back to GPS altitude */
fix.gps_altitude;
LogPoint(fix, (int)GetEPE(gps_info.gps), GetSIU(gps_info.gps));
}
void
IGCWriter::LogPoint(const NMEA_INFO& gps_info)
{
char szBRecord[500];
int iSIU = GetSIU(gps_info);
fixed dEPE = GetEPE(gps_info);
LogPoint_GPSPosition p;
char IsValidFix;
// if at least one GPS fix comes from the simulator, disable signing
if (gps_info.gps.Simulator)
Simulator = true;
if (!Simulator) {
const char *p = frecord.update(gps_info.gps.SatelliteIDs,
gps_info.DateTime, gps_info.Time,
gps_info.gps.NAVWarning);
if (p != NULL)
writeln(p);
}
if (!LastValidPoint.Initialized &&
((gps_info.GPSAltitude < fixed(-100))
|| (gps_info.BaroAltitude < fixed(-100))
|| gps_info.gps.NAVWarning))
return;
if (gps_info.gps.NAVWarning) {
IsValidFix = 'V'; // invalid
p = LastValidPoint;
} else {
IsValidFix = 'A'; // Active
// save last active fix location
p = LastValidPoint = gps_info;
}
char *q = szBRecord;
sprintf(q, "B%02d%02d%02d",
gps_info.DateTime.hour, gps_info.DateTime.minute,
gps_info.DateTime.second);
q += strlen(q);
q = igc_format_location(q, p.Location);
sprintf(q, "%c%05d%05d%03d%02d",
IsValidFix, (int)gps_info.BaroAltitude, p.GPSAltitude,
(int)dEPE, iSIU);
writeln(szBRecord);
}