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package nmea
const (
// TypeRSD type of RSD sentence for RADAR System Data
TypeRSD = "RSD"
// RSDDisplayRotationCourseUp is when display rotation is course up
RSDDisplayRotationCourseUp = "C"
// RSDDisplayRotationHeadingUp is when display rotation is ship heading up
RSDDisplayRotationHeadingUp = "H"
// RSDDisplayRotationNorthUp is when display rotation is (true) north up
RSDDisplayRotationNorthUp = "N"
)
// RSD - RADAR System Data
// https://gpsd.gitlab.io/gpsd/NMEA.html#_rsd_radar_system_data
// https://github.com/nohal/OpenCPN/wiki/ARPA-targets-tracking-implementation#rsd---radar-system-data
//
// Format: $--RSD,x.x,x.x,x.x,x.x,x.x,x.x,x.x,x.x,x.x,x.x,x.x,a,a*hh<CR><LF>
// Example: $RARSD,0.00,,2.50,005.0,0.00,,4.50,355.0,,,3.0,N,H*51
// Example: $RARSD,,,,,,,,,0.808,326.9,0.750,N,N*58
// Example: $RARSD,0.00,,0.40,,,,,,,,3.0,N,N*53
type RSD struct {
BaseSentence
Origin1Range float64 // Origin 1 range
Origin1Bearing float64 // Origin 1 bearing (degrees from 0°)
VariableRangeMarker1 float64 // Variable Range Marker 1
BearingLine1 float64 // Bearing Line 1
Origin2Range float64 // Origin 2 range
Origin2Bearing float64 // Origin 2 bearing (degrees from 0°)
VariableRangeMarker2 float64 // Variable Range Marker 2
BearingLine2 float64 // Bearing Line 2
CursorRangeFromOwnShip float64 // Cursor Range From Own Ship
CursorBearingDegrees float64 // Cursor Bearing (degrees clockwise from 0°)
RangeScale float64 // Range scale
RangeUnit string // Range units (K = kilometers, N = nautical miles, S = statute miles)
DisplayRotation string // Display rotation (C = course up, H = heading up, N - North up)
}
// newRSD constructor
func newRSD(s BaseSentence) (Sentence, error) {
p := NewParser(s)
p.AssertType(TypeRSD)
return RSD{
BaseSentence: s,
Origin1Range: p.Float64(0, "origin 1 range"),
Origin1Bearing: p.Float64(1, "origin 1 bearing"),
VariableRangeMarker1: p.Float64(2, "variable range marker 1"),
BearingLine1: p.Float64(3, "bearing line 1"),
Origin2Range: p.Float64(4, "origin 2 range"),
Origin2Bearing: p.Float64(5, "origin 2 bearing"),
VariableRangeMarker2: p.Float64(6, "variable range marker 2"),
BearingLine2: p.Float64(7, "bearing line 2"),
CursorRangeFromOwnShip: p.Float64(8, "cursor range from own ship"),
CursorBearingDegrees: p.Float64(9, "cursor bearing"),
RangeScale: p.Float64(10, "range scale"),
RangeUnit: p.EnumString(11, "range units", DistanceUnitKilometre, DistanceUnitNauticalMile, DistanceUnitStatuteMile),
DisplayRotation: p.EnumString(12, "display rotation", RSDDisplayRotationCourseUp, RSDDisplayRotationHeadingUp, RSDDisplayRotationNorthUp),
}, p.Err()
}
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