34 lines
999 B
TypeScript
34 lines
999 B
TypeScript
import getGreatCircleBearing from 'geolib/es/getGreatCircleBearing';
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import { generateAFArc } from '../pathGenerators/generateAFArc';
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import { computeSpeed } from '../utils/computeSpeed';
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export const TerminatorsAF = (
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leg: AFTerminalEntry,
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previousFix: NavFix,
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waypoint?: Waypoint
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): [NavFix?, LineSegment[]?] => {
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const navaid = {
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latitude: leg.NavLat,
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longitude: leg.NavLon,
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};
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const targetFix: NavFix = {
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latitude: leg.WptLat,
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longitude: leg.WptLon,
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name: waypoint?.Ident ?? undefined,
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isFlyOver: leg.IsFlyOver,
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altitude: leg.Alt ? leg.Alt.parseAltitude() : previousFix.altitude,
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speed: computeSpeed(leg, previousFix),
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speedConstraint: leg.SpeedLimit,
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altitudeConstraint: leg.Alt,
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IsFAF: leg.IsFAF,
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IsMAP: leg.IsMAP,
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};
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const arcEndCrs = getGreatCircleBearing(navaid, targetFix);
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const line = generateAFArc(arcEndCrs, leg.Course.toTrue(navaid), previousFix, navaid, leg.NavDist, leg.TurnDir);
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return [targetFix, line];
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};
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