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package nmea
const (
// TypePGRME type for PGRME sentences
TypePGRME = "GRME"
// ErrorUnit must be meters (M)
ErrorUnit = "M"
)
// PGRME is Estimated Position Error (Garmin proprietary sentence)
// http://aprs.gids.nl/nmea/#rme
// https://gpsd.gitlab.io/gpsd/NMEA.html#_pgrme_garmin_estimated_error
//
// Format: $PGRME,hhh,M,vvv,M,ttt,M*hh<CR><LF>
// Example: $PGRME,3.3,M,4.9,M,6.0,M*25
type PGRME struct {
BaseSentence
Horizontal float64 // Estimated horizontal position error (HPE) in metres
Vertical float64 // Estimated vertical position error (VPE) in metres
Spherical float64 // Overall spherical equivalent position error in meters
}
// newPGRME constructor
func newPGRME(s BaseSentence) (Sentence, error) {
p := NewParser(s)
p.AssertType(TypePGRME)
horizontal := p.Float64(0, "horizontal error")
_ = p.EnumString(1, "horizontal error unit", ErrorUnit)
vertial := p.Float64(2, "vertical error")
_ = p.EnumString(3, "vertical error unit", ErrorUnit)
spherical := p.Float64(4, "spherical error")
_ = p.EnumString(5, "spherical error unit", ErrorUnit)
return PGRME{
BaseSentence: s,
Horizontal: horizontal,
Vertical: vertial,
Spherical: spherical,
}, p.Err()
}
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