Abstract Class: TurnToFixLegCalculator

Defined in: src/sdk/flightplan/FlightPathLegCalculator.ts:449

Calculates flight path vectors for legs which define a turn ending at a defined terminator fix.

Extends

• AbstractFlightPathLegCalculator

Extended by

• RadiusToFixLegCalculator
• ArcToFixLegCalculator

Constructors

Constructor

new TurnToFixLegCalculator(facilityCache): TurnToFixLegCalculator

Defined in: src/sdk/flightplan/FlightPathLegCalculator.ts:460

Constructor.

Parameters

Parameter	Type	Description
facilityCache	Map<string, Facility>	This calculator's cache of facilities.

Returns

TurnToFixLegCalculator

Overrides

AbstractFlightPathLegCalculator.constructor

Properties

circleVectorBuilder

protected readonly circleVectorBuilder: CircleVectorBuilder

Defined in: src/sdk/flightplan/FlightPathLegCalculator.ts:454

---

facilityCache

protected readonly facilityCache: Map<string, Facility>

Defined in: src/sdk/flightplan/FlightPathLegCalculator.ts:43

This calculator's cache of facilities.

Inherited from

AbstractFlightPathLegCalculator.facilityCache

---

geoCircleCache

protected readonly geoCircleCache: GeoCircle[]

Defined in: src/sdk/flightplan/FlightPathLegCalculator.ts:452

---

geoPointCache

protected readonly geoPointCache: GeoPoint[]

Defined in: src/sdk/flightplan/FlightPathLegCalculator.ts:451

---

skipWhenActive

protected readonly skipWhenActive: boolean = false

Defined in: src/sdk/flightplan/FlightPathLegCalculator.ts:43

Whether this calculator will skip calculations for active legs when the leg has already been calculated. False by default.

Inherited from

AbstractFlightPathLegCalculator.skipWhenActive

---

vec3Cache

protected readonly vec3Cache: Float64Array[]

Defined in: src/sdk/flightplan/FlightPathLegCalculator.ts:450

Methods

calculate()

calculate(legs, calculateIndex, activeLegIndex, state, resolveIngressToEgress): LegCalculations

Defined in: src/sdk/flightplan/FlightPathLegCalculator.ts:109

Calculates flight path vectors for a flight plan leg and adds the calculations to the leg.

Parameters

Parameter	Type	Default value	Description
legs	LegDefinition[]	undefined	A sequence of flight plan legs.
calculateIndex	number	undefined	The index of the leg to calculate.
activeLegIndex	number	undefined	The index of the active leg.
state	FlightPathState	undefined	The current flight path state.
resolveIngressToEgress	boolean	true	-

Returns

LegCalculations

The flight plan leg calculations.

Inherited from

AbstractFlightPathLegCalculator.calculate

---

calculateMagVar()

protected calculateMagVar(legs, calculateIndex): void

Defined in: src/sdk/flightplan/FlightPathLegCalculator.ts:465

Calculates the magnetic variation for a flight plan leg.

Parameters

Parameter	Type	Description
legs	LegDefinition[]	A sequence of flight plan legs.
calculateIndex	number	The index of the leg to calculate.

Returns

void

The number of vectors added to the sequence.

Overrides

AbstractFlightPathLegCalculator.calculateMagVar

---

calculateVectors()

protected calculateVectors(legs, calculateIndex, activeLegIndex, state): void

Defined in: src/sdk/flightplan/FlightPathLegCalculator.ts:477

Calculates flight path vectors for a flight plan leg.

Parameters

Parameter	Type	Description
legs	LegDefinition[]	A sequence of flight plan legs.
calculateIndex	number	The index of the leg to calculate.
activeLegIndex	number	The index of the active leg.
state	FlightPathState	The current flight path state.

Returns

void

The number of vectors added to the sequence.

Overrides

AbstractFlightPathLegCalculator.calculateVectors

---

getLegMagVar()

protected getLegMagVar(leg, point): number

Defined in: src/sdk/flightplan/FlightPathLegCalculator.ts:81

Gets the magnetic variation, in degrees, to use when calculating a flight plan leg's course. If the leg defines an origin or fix VOR facility, then the magnetic variation defined at the VOR is used. Otherwise the computed magnetic variation for the specified point is used.

Parameters

Parameter	Type	Description
leg	FlightPlanLeg	A flight plan leg.
point	LatLonInterface	The location from which to get magnetic variation, if an origin VOR is not found.

Returns

number

The magnetic variation, in degrees, to use when calculating the specified flight plan leg's course.

Inherited from

AbstractFlightPathLegCalculator.getLegMagVar

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getLegTrueCourse()

protected getLegTrueCourse(leg, point): number

Defined in: src/sdk/flightplan/FlightPathLegCalculator.ts:100

Gets the true course, in degrees, for a flight plan leg. If the leg defines an origin or fix VOR facility, then the magnetic variation defined at the VOR is used to adjust magnetic course. Otherwise the computed magnetic variation for the specified point is used.

Parameters

Parameter	Type	Description
leg	FlightPlanLeg	A flight plan leg.
point	LatLonInterface	The location from which to get magnetic variation, if an origin VOR is not found.

Returns

number

The true course, in degrees, for the flight plan leg.

Inherited from

AbstractFlightPathLegCalculator.getLegTrueCourse

---

getPositionFromIcao()

protected getPositionFromIcao(icao, out): undefined | GeoPoint

Defined in: src/sdk/flightplan/FlightPathLegCalculator.ts:52

Gets a geographical position from an ICAO string.

Parameters

Parameter	Type	Description
icao	string	An ICAO string.
out	GeoPoint	A GeoPoint object to which to write the result.

Returns

undefined | GeoPoint

The geographical position corresponding to the ICAO string, or undefined if one could not be obtained.

Inherited from

AbstractFlightPathLegCalculator.getPositionFromIcao

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getTerminatorPosition()

protected getTerminatorPosition(leg, icao, out): undefined | GeoPoint

Defined in: src/sdk/flightplan/FlightPathLegCalculator.ts:64

Gets the geographic position for a flight plan leg terminator.

Parameters

Parameter	Type	Description
leg	FlightPlanLeg	A flight plan leg.
icao	string	The ICAO string of the leg's terminator fix.
out	GeoPoint	A GeoPoint object to which to write the result.

Returns

undefined | GeoPoint

The position of the leg terminator, or undefined if it could not be determined.

Inherited from

AbstractFlightPathLegCalculator.getTerminatorPosition

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getTurnCenter()

abstract protected getTurnCenter(leg): undefined | LatLonInterface

Defined in: src/sdk/flightplan/FlightPathLegCalculator.ts:526

Gets the center of the turn defined by a flight plan leg.

Parameters

Parameter	Type	Description
leg	FlightPlanLeg	A flight plan leg.

Returns

undefined | LatLonInterface

The center of the turn defined by the flight plan leg, or undefined if it could not be determined.

---

getTurnRadius()

abstract protected getTurnRadius(leg, center): undefined | number

Defined in: src/sdk/flightplan/FlightPathLegCalculator.ts:534

Gets the radius of the turn defined by a flight plan leg.

Parameters

Parameter	Type	Description
leg	FlightPlanLeg	A flight plan leg.
center	LatLonInterface	The center of the turn.

Returns

undefined | number

The radius of the turn defined by the flight plan leg, or undefined if it could not be determined.

---

resolveIngressToEgress()

protected resolveIngressToEgress(legCalc): void

Defined in: src/sdk/flightplan/FlightPathLegCalculator.ts:207

Calculates the ingress to egress vectors for a flight plan leg and adds them to a leg calculation.

Parameters

Parameter	Type	Description
legCalc	LegCalculations	The calculations for a flight plan leg.

Returns

void

Inherited from

AbstractFlightPathLegCalculator.resolveIngressToEgress

---

shouldSkipWhenActive()

protected shouldSkipWhenActive(legs, calculateIndex, activeLegIndex, state): boolean

Defined in: src/sdk/flightplan/FlightPathLegCalculator.ts:178

Checks whether vector calculations should be skipped when the leg to calculate is the active leg.

Parameters

Parameter	Type	Description
legs	LegDefinition[]	A sequence of flight plan legs.
calculateIndex	number	The index of the leg to calculate.
activeLegIndex	number	The index of the active leg.
state	FlightPathState	The current flight path state.

Returns

boolean

Whether to skip vector calculations.

Inherited from

AbstractFlightPathLegCalculator.shouldSkipWhenActive