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package nmea
const (
// TypeVHW type for VHW sentences
TypeVHW = "VHW"
)
// VHW contains information about water speed and heading
// https://gpsd.gitlab.io/gpsd/NMEA.html#_vhw_water_speed_and_heading
//
// Format: $--VHW,x.x,T,x.x,M,x.x,N,x.x,K*hh<CR><LF>
// Example: $VWVHW,45.0,T,43.0,M,3.5,N,6.4,K*56
type VHW struct {
BaseSentence
TrueHeading float64
MagneticHeading float64
SpeedThroughWaterKnots float64
SpeedThroughWaterKPH float64
}
// newVHW constructor
func newVHW(s BaseSentence) (Sentence, error) {
p := NewParser(s)
p.AssertType(TypeVHW)
return VHW{
BaseSentence: s,
TrueHeading: p.Float64(0, "true heading"),
MagneticHeading: p.Float64(2, "magnetic heading"),
SpeedThroughWaterKnots: p.Float64(4, "speed through water in knots"),
SpeedThroughWaterKPH: p.Float64(6, "speed through water in kilometers per hour"),
}, p.Err()
}
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