bool ubloxNMEA::parseFix( char chr )
{
if (chrCount == 0) {
NMEAGPS_INVALIDATE( status );
if (chr == 'N')
m_fix.status = gps_fix::STATUS_NONE;
else if (chr == 'T')
m_fix.status = gps_fix::STATUS_TIME_ONLY;
else if (chr == 'R')
m_fix.status = gps_fix::STATUS_EST;
else if (chr == 'G')
m_fix.status = gps_fix::STATUS_STD;
else if (chr == 'D')
m_fix.status = gps_fix::STATUS_DGPS;
} else if (chrCount == 1) {
if (((chr == 'T') && (m_fix.status == gps_fix::STATUS_TIME_ONLY)) ||
((chr == 'K') && (m_fix.status == gps_fix::STATUS_EST)) ||
(((chr == '2') || (chr == '3')) &&
((m_fix.status == gps_fix::STATUS_STD) ||
(m_fix.status == gps_fix::STATUS_DGPS))) ||
((chr == 'F') && (m_fix.status == gps_fix::STATUS_NONE)))
// status based on first char was ok guess
m_fix.valid.status = true;
else if ((chr == 'R') && (m_fix.status == gps_fix::STATUS_DGPS)) {
m_fix.status = gps_fix::STATUS_EST; // oops, was DR instead
m_fix.valid.status = true;
}
}
return true;
}
bool ubloxNMEA::parseVelocityDown( char chr )
{
#ifdef GPS_FIX_VELNED
if (chrCount == 0)
NMEAGPS_INVALIDATE( velned );
// Checks for alias size.
char test[ (int)sizeof(m_fix.velocity_down) - (int)sizeof(gps_fix::whole_frac) ];
gps_fix::whole_frac *temp = (gps_fix::whole_frac *) &m_fix.velocity_down; // an alias for parsing
if (parseFloat( *temp, chr, 3 )) { // 0.001 m/s
if (chr == ',') {
// convert the temporary whole_frac values in place
m_fix.valid.velned = (chrCount > 0);
if (m_fix.valid.velned) {
m_fix.velocity_down = (temp->int32_000() + 5) / 10L; // mm/s to cm/s
}
}
}
#endif
return true;
} // parseVelocityDown
