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package nmea
const (
// TypeHDT type for HDT sentences
TypeHDT = "HDT"
)
// HDT is the Actual vessel heading in degrees True.
// http://aprs.gids.nl/nmea/#hdt
// https://gpsd.gitlab.io/gpsd/NMEA.html#_gsv_satellites_in_view
//
// Format: $--HDT,x.x,T*hh<CR><LF>
// Example: $GPHDT,274.07,T*03
type HDT struct {
BaseSentence
Heading float64 // Heading in degrees
True bool // Heading is relative to true north
}
// newHDT constructor
func newHDT(s BaseSentence) (Sentence, error) {
p := NewParser(s)
p.AssertType(TypeHDT)
m := HDT{
BaseSentence: s,
Heading: p.Float64(0, "heading"),
True: p.EnumString(1, "true", "T") == "T",
}
return m, p.Err()
}
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