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package nmea
const (
// TypeGLL type for GLL sentences
TypeGLL = "GLL"
// ValidGLL character
ValidGLL = "A"
// InvalidGLL character
InvalidGLL = "V"
)
// GLL is Geographic Position, Latitude / Longitude and time.
// http://aprs.gids.nl/nmea/#gll
// https://gpsd.gitlab.io/gpsd/NMEA.html#_gll_geographic_position_latitudelongitude
//
// Format : $--GLL,ddmm.mm,a,dddmm.mm,a,hhmmss.ss,a*hh<CR><LF>
// Format (NMEA 2.3+): $--GLL,ddmm.mm,a,dddmm.mm,a,hhmmss.ss,a,m*hh<CR><LF>
// Example: $IIGLL,5924.462,N,01030.048,E,062216,A*38
// Example: $GNGLL,4404.14012,N,12118.85993,W,001037.00,A,A*67
type GLL struct {
BaseSentence
Latitude float64 // Latitude
Longitude float64 // Longitude
Time Time // Time Stamp
Validity string // validity - A=valid, V=invalid
FFAMode string // FAA mode indicator (filled in NMEA 2.3 and later)
}
// newGLL constructor
func newGLL(s BaseSentence) (Sentence, error) {
p := NewParser(s)
p.AssertType(TypeGLL)
gll := GLL{
BaseSentence: s,
Latitude: p.LatLong(0, 1, "latitude"),
Longitude: p.LatLong(2, 3, "longitude"),
Time: p.Time(4, "time"),
Validity: p.EnumString(5, "validity", ValidGLL, InvalidGLL),
}
if len(p.Fields) > 6 {
gll.FFAMode = p.String(6, "FAA mode")
}
return gll, p.Err()
}
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