Initial NG

Tailwind
Wrap prompt
2025-07-16 01:34:34 +02:00 · 2025-07-15 12:19:41 +02:00 · 2025-07-15 11:35:03 +02:00 · 2025-07-15 11:02:25 +02:00
95 changed files with 1770 additions and 1130 deletions
@@ -22,3 +22,5 @@ dist-ssr
 *.njsproj
 *.sln
 *.sw?
+
+.env
@@ -5,16 +5,11 @@
  "version": "0.2.0",
  "configurations": [
    {
-      "type": "node",
+      "type": "chrome",
      "request": "launch",
-      "name": "Launch Parser Node",
-      "skipFiles": ["<node_internals>/**"],
-      "args": [
-        "--experimental-strip-types",
-        "${workspaceFolder}\\browser\\src\\parser\\node.ts"
-      ],
-      "cwd": "${workspaceFolder}\\browser\\",
-      "outFiles": ["${workspaceFolder}/**/*.js"]
+      "name": "Launch Chrome against localhost",
+      "url": "http://localhost:3000",
+      "webRoot": "${workspaceFolder}/browser"
    }
  ]
 }
@@ -0,0 +1,6 @@
+Revise list of charts to only show those applicable to the selected procedure (so terminal itself and all transitions accompanied)
+Revise image overlay
+  - Find center of full page
+  - Find center of georeferenced area
+  - Calculate skew parameters
+  - Skew geobounds
@@ -0,0 +1,3 @@
+public
+pnpm-lock.yaml
+node_modules
@@ -0,0 +1,9 @@
+{
+  "printWidth": 120,
+  "tabWidth": 2,
+  "semi": true,
+  "trailingComma": "es5",
+  "singleQuote": true,
+  "arrowParens": "always",
+  "plugins": ["prettier-plugin-organize-imports", "prettier-plugin-tailwindcss"]
+}
@@ -1,18 +1,18 @@
-import js from "@eslint/js";
-import globals from "globals";
-import reactHooks from "eslint-plugin-react-hooks";
-import reactRefresh from "eslint-plugin-react-refresh";
-import tseslint from "typescript-eslint";
-import { globalIgnores } from "eslint/config";
+import js from '@eslint/js';
+import reactHooks from 'eslint-plugin-react-hooks';
+import reactRefresh from 'eslint-plugin-react-refresh';
+import { globalIgnores } from 'eslint/config';
+import globals from 'globals';
+import tseslint from 'typescript-eslint';

 export default tseslint.config([
-  globalIgnores(["dist"]),
+  globalIgnores(['dist']),
  {
-    files: ["**/*.{ts,tsx}"],
+    files: ['**/*.{ts,tsx}'],
    extends: [
      js.configs.recommended,
      tseslint.configs.recommended,
-      reactHooks.configs["recommended-latest"],
+      reactHooks.configs['recommended-latest'],
      reactRefresh.configs.vite,
    ],
    languageOptions: {
@@ -20,7 +20,13 @@ export default tseslint.config([
      globals: globals.browser,
    },
    rules: {
-      "@typescript-eslint/no-shadow": "error",
+      '@typescript-eslint/no-shadow': 'error',
+      '@typescript-eslint/no-unused-vars': [
+        'error',
+        {
+          destructuredArrayIgnorePattern: '^_+$',
+        },
+      ],
    },
  },
 ]);
@@ -2,8 +2,10 @@
 <html lang="en">
  <head>
    <meta charset="UTF-8" />
-    <link rel="icon" type="image/svg+xml" href="/vite.svg" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+
+    <link href="/src/style.css" rel="stylesheet">
+
    <title>MD-11 NavData Browser</title>
  </head>
  <body>
@@ -4,26 +4,30 @@
  "version": "0.0.0",
  "type": "module",
  "scripts": {
-    "dev": "vite",
+    "dev": "vite --port 3000 --host",
    "build": "tsc -b && vite build",
-    "lint": "eslint .",
+    "lint": "eslint . --ext .ts,.tsx --fix",
    "preview": "vite preview",
    "parser": "node --experimental-strip-types src/parser/node.ts"
  },
  "dependencies": {
+    "browser-image-manipulation": "^0.4.0",
    "geojson": "^0.5.0",
    "geolib": "^3.3.4",
    "leaflet": "^1.9.4",
    "leaflet-svg-shape-markers": "^1.4.0",
    "magvar": "^2.0.0",
+    "navigraph": "^1.4.1",
+    "qrcode.react": "^4.2.0",
    "react": "^19.1.0",
    "react-dom": "^19.1.0",
-    "react-leaflet": "^5.0.0"
+    "react-leaflet": "^5.0.0",
+    "tailwindcss": "^4.1.11"
  },
  "devDependencies": {
    "@eslint/js": "^9.31.0",
+    "@tailwindcss/vite": "^4.1.11",
    "@types/leaflet": "^1.9.20",
-    "@types/node": "^24.0.13",
    "@types/object-hash": "^3.0.6",
    "@types/react": "^19.1.8",
    "@types/react-dom": "^19.1.6",
@@ -33,8 +37,11 @@
    "eslint-plugin-react-refresh": "^0.4.20",
    "globals": "^16.3.0",
    "object-hash": "^3.0.0",
+    "prettier": "^3.6.2",
+    "prettier-plugin-organize-imports": "^4.1.0",
+    "prettier-plugin-tailwindcss": "^0.6.14",
    "typescript": "~5.8.3",
-    "typescript-eslint": "^8.36.0",
+    "typescript-eslint": "^8.37.0",
    "vite": "^7.0.4"
  }
 }
@@ -0,0 +1 @@
+[{"ID":1,"Name":"KATMAI LODGE","ICAO":"00AN","PrimaryID":null,"Latitude":59.09347222,"Longitude":-156.45583333,"Elevation":80,"TransAlt":18000},{"ID":2,"Name":"ARLAND","ICAO":"00AR","PrimaryID":null,"Latitude":38.96965,"Longitude":-97.60155556,"Elevation":1352,"TransAlt":null},{"ID":3,"Name":"WILLIAMS AG","ICAO":"00CL","PrimaryID":null,"Latitude":39.42718889,"Longitude":-121.76342778,"Elevation":87,"TransAlt":null},{"ID":4,"Name":"GOLTL","ICAO":"00IG","PrimaryID":null,"Latitude":39.72402778,"Longitude":-101.39599444,"Elevation":3359,"TransAlt":null},{"ID":5,"Name":"THOMPSON FARMS","ICAO":"00TN","PrimaryID":null,"Latitude":36.12045,"Longitude":-86.35953333,"Elevation":675,"TransAlt":null},{"ID":6,"Name":"NOWHERE","ICAO":"00TT","PrimaryID":null,"Latitude":34.51660556,"Longitude":-99.93694167,"Elevation":1752,"TransAlt":null},{"ID":7,"Name":"DELVA","ICAO":"00TX","PrimaryID":null,"Latitude":32.54445278,"Longitude":-95.67313056,"Elevation":545,"TransAlt":18000},{"ID":8,"Name":"WEESKI RANCH","ICAO":"00XA","PrimaryID":null,"Latitude":30.22403889,"Longitude":-96.01415278,"Elevation":271,"TransAlt":null},{"ID":9,"Name":"MC HONE HEIGHTS","ICAO":"01AN","PrimaryID":null,"Latitude":61.64902778,"Longitude":-149.33902778,"Elevation":610,"TransAlt":null},{"ID":10,"Name":"SWANSBORO COUNTRY","ICAO":"01CL","PrimaryID":null,"Latitude":38.79990278,"Longitude":-120.734375,"Elevation":2594,"TransAlt":18000},{"ID":11,"Name":"COLEMAN HOMESTEAD","ICAO":"01CN","PrimaryID":null,"Latitude":62.10698333,"Longitude":-150.10929722,"Elevation":282,"TransAlt":null},{"ID":12,"Name":"THE FARM","ICAO":"01GE","PrimaryID":null,"Latitude":32.67515,"Longitude":-82.77099444,"Elevation":369,"TransAlt":null},{"ID":13,"Name":"LAVA HOT SPRINGS","ICAO":"01ID","PrimaryID":null,"Latitude":42.60825,"Longitude":-112.03246111,"Elevation":5268,"TransAlt":18000},{"ID":14,"Name":"GRANVILLE","ICAO":"01NK","PrimaryID":null,"Latitude":43.42294444,"Longitude":-73.268025,"Elevation":421,"TransAlt":18000},{"ID":15,"Name":"SPRING CREEK RANCH EAST","ICAO":"01OL","PrimaryID":null,"Latitude":34.37256944,"Longitude":-96.71603611,"Elevation":1060,"TransAlt":null},{"ID":16,"Name":"BEULAH FLD","ICAO":"01TX","PrimaryID":null,"Latitude":33.17058056,"Longitude":-98.62222222,"Elevation":1120,"TransAlt":null},{"ID":17,"Name":"BASS","ICAO":"02AL","PrimaryID":null,"Latitude":30.37146389,"Longitude":-87.76444444,"Elevation":61,"TransAlt":18000},{"ID":18,"Name":"EMERALD RIDGE","ICAO":"02AN","PrimaryID":null,"Latitude":59.70422222,"Longitude":-151.29586944,"Elevation":221,"TransAlt":null},{"ID":19,"Name":"OSBORN","ICAO":"02FA","PrimaryID":null,"Latitude":28.52666667,"Longitude":-81.8748,"Elevation":121,"TransAlt":18000},{"ID":20,"Name":"TRIPLE R RANCH","ICAO":"02FD","PrimaryID":null,"Latitude":30.95234722,"Longitude":-86.63541667,"Elevation":209,"TransAlt":null},{"ID":21,"Name":"FAIRPLAINS AIRPARK","ICAO":"02MI","PrimaryID":null,"Latitude":43.15700278,"Longitude":-85.14892778,"Elevation":850,"TransAlt":null},{"ID":22,"Name":"GREGORY","ICAO":"02MN","PrimaryID":null,"Latitude":45.62973611,"Longitude":-93.17497222,"Elevation":950,"TransAlt":null},{"ID":23,"Name":"TROY","ICAO":"02MO","PrimaryID":null,"Latitude":39.04626111,"Longitude":-91.02821944,"Elevation":630,"TransAlt":18000},{"ID":24,"Name":"FFR ANIMAS LANDING STRIP","ICAO":"02NM","PrimaryID":null,"Latitude":32.09071111,"Longitude":-108.87073611,"Elevation":4240,"TransAlt":null},{"ID":25,"Name":"CAWLEYS SOUTH PRAIRIE","ICAO":"02WA","PrimaryID":null,"Latitude":47.152325,"Longitude":-122.09400278,"Elevation":690,"TransAlt":18000},{"ID":26,"Name":"BLUE WATER","ICAO":"03CO","PrimaryID":null,"Latitude":38.09791944,"Longitude":-106.08975556,"Elevation":7710,"TransAlt":null},{"ID":27,"Name":"GREENS FARM FLD","ICAO":"03FL","PrimaryID":null,"Latitude":26.70547778,"Longitude":-82.05236944,"Elevation":15,"TransAlt":null},{"ID":28,"Name":"FLATLANDER","ICAO":"03IA","PrimaryID":null,"Latitude":41.14141111,"Longitude":-95.19438056,"Elevation":1081,"TransAlt":null},{"ID":29,"Name":"DORTON","ICAO":"03MO","PrimaryID":null,"Latitude":39.28883056,"Longitude":-93.99242222,"Elevation":930,"TransAlt":null},{"ID":30,"Name":"BLUEBIRD","ICAO":"03OL","PrimaryID":null,"Latitude":35.01233333,"Longitude":-97.70273611,"Elevation":1232,"TransAlt":null},{"ID":31,"Name":"BRAZOS POLO","ICAO":"03TT","PrimaryID":null,"Latitude":29.63211667,"Longitude":-95.93248056,"Elevation":117,"TransAlt":null},{"ID":32,"Name":"AEROSTONE AIRFIELD","ICAO":"03WN","PrimaryID":null,"Latitude":45.87545556,"Longitude":-120.672325,"Elevation":2342,"TransAlt":null},{"ID":33,"Name":"NORTH 40","ICAO":"04AN","PrimaryID":null,"Latitude":61.73751111,"Longitude":-148.700725,"Elevation":943,"TransAlt":null},{"ID":34,"Name":"WHITE HILLS","ICAO":"04AZ","PrimaryID":null,"Latitude":35.72177778,"Longitude":-114.45053889,"Elevation":2470,"TransAlt":null},{"ID":35,"Name":"GRAY BUTTE","ICAO":"04CA","PrimaryID":null,"Latitude":34.56664444,"Longitude":-117.67077222,"Elevation":3039,"TransAlt":18000},{"ID":36Line truncated
@@ -0,0 +1 @@
+Copy over contents of `Data/Primary` retaining the structure.
@@ -1,153 +1,77 @@
-import { MapContainer, GeoJSON, TileLayer } from "react-leaflet";
-import Parser from "./parser/parser";
-import { createRef, useEffect, useState } from "react";
-import hash from "object-hash";
-import Leaflet from "leaflet";
-import "leaflet-svg-shape-markers";
-import L from "leaflet";
+import type { DeviceFlowParams } from 'navigraph/auth';
+import { QRCodeSVG } from 'qrcode.react';
+import { useState } from 'react';
+import { ProcedureSelect } from './components//ProcedureSelect';
+import { Map } from './components/Map';
+import { useNavigraphAuth } from './hooks/useNavigraphAuth';
+import Parser from './parser/parser';

 const parser = await Parser.instance();

-const terminals = [
-  10394, 10395, 10475, 10480, 10482, 10485, 10653, 10654, 10657, 10659, 10679,
-  11798, 11909, 12765,
-];
-
 function App() {
-  const [selectedTerminal, setSelectedTerminal] = useState(terminals[0]);
-  const [procedures, setProcedures] = useState<object[]>([]);
+  const [selectedAirport, setSelectedAirport] = useState<Airport>();
+  const [selectedRunway, setSelectedRunway] = useState<Runway>();
+  const [selectedTerminal, setSelectedTerminal] = useState<Terminal>();
+  const [procedures, setProcedures] = useState<{ name: string; data: object }[]>([]);
+  const [params, setParams] = useState<DeviceFlowParams | null>(null);

-  const mapRef = createRef<Leaflet.Map>();
-  const layerRef = createRef<Leaflet.GeoJSON>();
+  const { user, signIn, initialized } = useNavigraphAuth();

-  useEffect(() => {
-    (async () => {
-      setProcedures(await parser.parse(selectedTerminal));
-    })();
-  }, [selectedTerminal]);
-
-  useEffect(() => {
-    if (layerRef.current && mapRef.current) {
-      mapRef.current.flyToBounds(layerRef.current.getBounds(), {
-        animate: false,
-        padding: [50, 50],
-      });
-    }
-  });
+  const handleSignIn = () => signIn((p) => setParams(p));

  return (
-    <div style={{ display: "flex", height: "100vh", width: "100vw" }}>
-      <MapContainer
-        center={[51.505, -0.09]}
-        zoom={13}
-        zoomSnap={0}
-        zoomDelta={0.1}
-        wheelPxPerZoomLevel={1000}
-        style={{ height: "100%", width: "100%" }}
-        ref={mapRef}
-      >
-        <TileLayer
-          attribution='&copy; <a href="https://www.openstreetmap.org/copyright">OpenStreetMap</a> contributors'
-          url="https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png"
-        />
-        {procedures.map((procedure) => (
    <>
-            <GeoJSON
-              key={hash(procedure ?? "") + "lines"}
-              data={procedure}
-              style={({ properties }) => ({
-                color: "#ff00ff",
-                stroke: true,
-                weight: 5,
-                opacity: 1,
-                dashArray: properties.isManual ? "20, 20" : undefined,
-              })}
-              filter={(feature) => feature.geometry.type !== "Point"}
-              ref={layerRef}
-            />
-            <GeoJSON
-              key={hash(procedure ?? "") + "points"}
-              data={procedure}
-              style={{
-                color: "black",
-                fill: true,
-                fillColor: "transparent",
-                stroke: true,
-                weight: 3,
-              }}
-              pointToLayer={({ properties }, latlng) => {
-                if (properties.isFlyOver)
-                  return L.shapeMarker(latlng, {
-                    shape: "triangle",
-                    radius: 6,
-                  });
-                if (properties.isIntersection)
-                  return L.circleMarker(latlng, { radius: 6 });
+      {procedures.length === 0 ? (
+        <div className="flex min-h-dvh w-full">
+          {!initialized && <div>Loading...</div>}

-                return L.shapeMarker(latlng, {
-                  shape: "star-4",
-                  radius: 10,
-                  rotation: 45,
-                });
-              }}
-              onEachFeature={({ geometry, properties }, layer) => {
-                if (geometry.type === "Point") {
-                  layer.bindPopup(
-                    `${properties.name}<br>
-                ${properties.altitude} ft<br>
-                ${properties.speed} kts<br>
-                CNSTR: 
-                ${properties.altitudeConstraint ?? ""}
-                ${properties.speedConstraint ?? ""}<br>`
-                  );
-                }
-              }}
-              filter={(feature) => feature.geometry.type === "Point"}
-            />
+          {initialized && !params && !user && <button onClick={handleSignIn}>Sign in</button>}
+
+          {params?.verification_uri_complete && !user && (
+            <>
+              <QRCodeSVG value={params.verification_uri_complete} size={250} />
+              <a href={params.verification_uri_complete} target="_blank" rel="noreferrer">
+                Open sign in page
+              </a>
            </>
-        ))}
-      </MapContainer>
-      <div
-        style={{
-          overflowY: "scroll",
-          width: "200px",
+          )}
+          {user && (
+            <ProcedureSelect
+              selectedAirport={selectedAirport}
+              selectedRunway={selectedRunway}
+              selectedTerminal={selectedTerminal}
+              setSelectedAirport={setSelectedAirport}
+              setSelectedRunway={setSelectedRunway}
+              setSelectedTerminal={setSelectedTerminal}
+              handleSelection={(selectedTransitions) =>
+                setProcedures(
+                  selectedTransitions.map((transition) => ({
+                    name: transition,
+                    data: parser.parse(selectedRunway!, transition),
+                  }))
+                )
+              }
+            />
+          )}
+        </div>
+      ) : (
+        <div className="flex h-dvh w-dvw">
+          {procedures.length > 0 && selectedAirport && selectedTerminal ? (
+            <Map
+              airport={selectedAirport}
+              terminal={selectedTerminal}
+              procedures={procedures}
+              backAction={() => {
+                setSelectedTerminal(undefined);
+                setProcedures([]);
              }}
-      >
-        <div
-          style={{
-            padding: "5px",
-            display: "flex",
-            flexDirection: "column",
-            gap: "10px",
-          }}
-        >
-          {terminals.map((terminal) => (
-            <div
-              key={terminal}
-              style={{
-                display: "flex",
-                flexDirection: "column",
-                background: "#eeeeee",
-                border:
-                  selectedTerminal === terminal
-                    ? "1px solid black"
-                    : "1px solid #eeeeee",
-                padding: "5px",
-              }}
-              onClick={() => setSelectedTerminal(terminal)}
-            >
-              <span style={{ whiteSpace: "nowrap" }}>
-                {(() => {
-                  const t = parser.terminals.find(({ ID }) => ID === terminal);
-                  return `${t?.ICAO} - ${t?.FullName}`;
-                })()}
-              </span>
-              <pre>({terminal})</pre>
-            </div>
-          ))}
-        </div>
-      </div>
+            />
+          ) : (
+            <h1 className="text-center text-3xl">Error</h1>
+          )}
        </div>
+      )}
+    </>
  );
 }

@@ -0,0 +1,197 @@
+import BrowserImageManipulation from 'browser-image-manipulation';
+import { default as L, type LatLngBoundsExpression } from 'leaflet';
+import 'leaflet-svg-shape-markers';
+import { type Chart } from 'navigraph/charts';
+import { createRef, useEffect, useState, type FC } from 'react';
+import { GeoJSON, ImageOverlay, MapContainer, TileLayer } from 'react-leaflet';
+import { charts } from '../lib/navigraph';
+
+interface MapProps {
+  airport: Airport;
+  terminal: Terminal;
+  procedures: { name: string; data: object }[];
+  backAction: () => void;
+}
+
+export const Map: FC<MapProps> = ({ airport, terminal, procedures, backAction }) => {
+  const [selectedProcedure, setSelectedProcedure] = useState(procedures[0]);
+  const [chartIndex, setChartIndex] = useState<Chart[]>([]);
+  const [selectedChart, setSelectedChart] = useState<{
+    data: string;
+    index_number: string;
+    bounds: LatLngBoundsExpression;
+  }>();
+
+  const mapRef = createRef<L.Map>();
+  const imageRef = createRef<L.ImageOverlay>();
+
+  useEffect(() => {
+    (async () => {
+      setChartIndex((await charts.getChartsIndex({ icao: airport.ICAO, version: 'STD' })) ?? []);
+    })();
+  }, []);
+
+  return (
+    <>
+      <button
+        className="fixed top-2 left-2 z-[5000] cursor-pointer rounded border border-red-500 bg-red-500 px-2 py-1 font-semibold text-stone-50 focus:outline-2 focus:outline-black focus-visible:outline-2 focus-visible:outline-black"
+        onClick={backAction}
+      >
+        Go back
+      </button>
+
+      <MapContainer
+        center={[airport.Latitude, airport.Longitude]}
+        zoom={13}
+        zoomSnap={0}
+        className="h-full w-full"
+        ref={(_mapRef) => {
+          _mapRef?.attributionControl.setPosition('topright');
+          _mapRef?.zoomControl.setPosition('topright');
+          mapRef.current = _mapRef;
+        }}
+      >
+        <TileLayer
+          attribution='&copy; <a href="https://www.openstreetmap.org/copyright">OpenStreetMap</a> contributors'
+          url="https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png"
+        />
+
+        {selectedChart && selectedChart.bounds && (
+          <ImageOverlay
+            url={selectedChart.data}
+            bounds={selectedChart.bounds}
+            opacity={0.75}
+            ref={(_imageRef) => {
+              if (_imageRef) {
+                mapRef.current?.fitBounds(_imageRef.getBounds(), {
+                  padding: [-50, -50],
+                });
+              }
+              imageRef.current = _imageRef;
+            }}
+          />
+        )}
+
+        <GeoJSON
+          key={`${selectedProcedure.name}-lines`}
+          data={selectedProcedure.data}
+          style={({ properties }) => ({
+            color: '#ff00ff',
+            stroke: true,
+            weight: 5,
+            opacity: 1,
+            dashArray: properties.isManual ? '20, 20' : undefined,
+          })}
+          filter={(feature) => feature.geometry.type !== 'Point'}
+        />
+        <GeoJSON
+          key={`${selectedProcedure.name}-points`}
+          data={selectedProcedure.data}
+          style={{
+            color: 'black',
+            fill: true,
+            fillColor: 'transparent',
+            stroke: true,
+            weight: 3,
+          }}
+          pointToLayer={({ properties }, latlng) => {
+            if (properties.isFlyOver)
+              return L.shapeMarker(latlng, {
+                shape: 'triangle',
+                radius: 6,
+              });
+            if (properties.isIntersection) return L.circleMarker(latlng, { radius: 6 });
+
+            return L.shapeMarker(latlng, {
+              shape: 'star-4',
+              radius: 10,
+              rotation: 45,
+            });
+          }}
+          onEachFeature={({ geometry, properties }, layer) => {
+            if (geometry.type === 'Point') {
+              layer.bindPopup(
+                `${properties.name}<br>
+                ${properties.altitude} ft<br>
+                ${properties.speed} kts<br>
+                CNSTR: 
+                ${properties.altitudeConstraint ?? ''}
+                ${properties.speedConstraint ?? ''}<br>`
+              );
+            }
+          }}
+          filter={(feature) => feature.geometry.type === 'Point'}
+        />
+      </MapContainer>
+
+      <div className="absolute right-0 bottom-0 left-0 z-[5000] bg-[#ffffff77] bg-blend-color backdrop-blur-xs">
+        <div className="flex items-center gap-2 overflow-x-auto p-2">
+          <span className="text-lg font-semibold">Procedures:</span>
+          {procedures.map((procedure) => (
+            <button
+              key={procedure.name}
+              className={`cursor-pointer rounded border border-gray-300 bg-gray-300 px-2 py-1 font-semibold focus:outline-2 focus:outline-black focus-visible:outline-2 focus-visible:outline-black ${selectedProcedure.name === procedure.name ? 'outline-2' : ''}`}
+              onClick={() => {
+                if (selectedProcedure.name === procedure.name) return;
+
+                setSelectedProcedure(procedure);
+              }}
+            >
+              {procedure.name ? procedure.name : 'ZZZZ'}
+            </button>
+          ))}
+        </div>
+        <div className="flex items-center gap-2">
+          <span className="text-lg font-semibold">Charts:</span>
+          <div className="flex items-center gap-2 overflow-x-auto p-2">
+            {chartIndex
+              .filter((chart) => chart.is_georeferenced)
+              .map((chart) => (
+                <button
+                  key={chart.index_number}
+                  className={`cursor-pointer rounded border border-gray-300 bg-gray-300 px-2 py-1 font-semibold whitespace-nowrap focus:outline-2 focus:outline-black focus-visible:outline-2 focus-visible:outline-black ${selectedChart?.index_number === chart.index_number ? 'outline-2' : ''}`}
+                  onClick={async () => {
+                    if (selectedChart?.index_number === chart.index_number) return;
+
+                    if (!mapRef.current) return;
+
+                    if (!chart.bounding_boxes) return;
+
+                    const planView = chart.bounding_boxes.planview;
+
+                    const chartImage = await charts.getChartImage({ chart, theme: 'light' });
+                    if (!chartImage) return;
+                    // Crop
+                    const dataURL = await new BrowserImageManipulation()
+                      .loadBlob(chartImage)
+                      .crop(
+                        planView.pixels.x2 - planView.pixels.x1,
+                        planView.pixels.y1 - planView.pixels.y2,
+                        planView.pixels.x1,
+                        planView.pixels.y2
+                      )
+                      .saveAsImage();
+
+                    const bounds = new L.LatLngBounds(
+                      [planView.latlng.lat1, planView.latlng.lng1],
+                      [planView.latlng.lat2, planView.latlng.lng2]
+                    );
+
+                    setSelectedChart({ data: dataURL, index_number: chart.index_number, bounds });
+
+                    if (imageRef.current) {
+                      mapRef.current?.fitBounds(imageRef.current.getBounds(), {
+                        padding: [-50, -50],
+                      });
+                    }
+                  }}
+                >
+                  {chart.name}
+                </button>
+              ))}
+          </div>
+        </div>
+      </div>
+    </>
+  );
+};
@@ -0,0 +1,125 @@
+import { createRef, useMemo, useState, type Dispatch, type FC, type SetStateAction } from 'react';
+import Parser from '../parser/parser';
+
+const parser = await Parser.instance();
+
+interface ProcedureSelectProps {
+  selectedAirport: Airport | undefined;
+  selectedRunway: Runway | undefined;
+  selectedTerminal: Terminal | undefined;
+  setSelectedAirport: Dispatch<SetStateAction<Airport | undefined>>;
+  setSelectedRunway: Dispatch<SetStateAction<Runway | undefined>>;
+  setSelectedTerminal: Dispatch<SetStateAction<Terminal | undefined>>;
+  handleSelection: (transitions: string[]) => void;
+}
+
+export const ProcedureSelect: FC<ProcedureSelectProps> = ({
+  selectedAirport,
+  selectedRunway,
+  selectedTerminal,
+  setSelectedAirport,
+  setSelectedRunway,
+  setSelectedTerminal,
+  handleSelection,
+}) => {
+  const inputRef = createRef<HTMLInputElement>();
+  const [error, setError] = useState<string>();
+
+  const runways = useMemo(
+    () => parser.runways.filter(({ AirportID }) => AirportID === selectedAirport?.ID),
+    [selectedAirport]
+  );
+  const terminals = useMemo(
+    () =>
+      parser.terminals.filter(
+        ({ AirportID, RwyID }) => AirportID === selectedAirport?.ID && (!RwyID || RwyID === selectedRunway?.ID)
+      ),
+    [selectedAirport, selectedRunway]
+  );
+
+  return (
+    <div className="flex w-full flex-col items-center justify-center gap-2 p-2">
+      {selectedAirport && (
+        <button
+          className="fixed top-2 left-2 cursor-pointer rounded border border-red-500 bg-red-500 px-2 py-1 font-semibold text-stone-50 focus:outline-2 focus:outline-black focus-visible:outline-2 focus-visible:outline-black"
+          onClick={() => {
+            setError(undefined);
+
+            if (selectedTerminal) {
+              setSelectedTerminal(undefined);
+            } else if (selectedRunway) {
+              setSelectedRunway(undefined);
+            } else if (selectedAirport) {
+              setSelectedAirport(undefined);
+            }
+          }}
+        >
+          Go back
+        </button>
+      )}
+
+      {!selectedAirport && (
+        <div className="flex w-full flex-col gap-2">
+          <h1 className="text-center text-3xl">Enter Airport ICAO</h1>
+          <input
+            ref={inputRef}
+            className="rounded border border-black px-2 py-1 focus:outline-2 focus-visible:outline-2"
+            onChange={(e) => {
+              if (e.target.value.length <= 4) e.target.value = e.target.value.toUpperCase();
+              else e.target.value = e.target.value.slice(0, 4);
+            }}
+          ></input>
+          <button
+            className="w-full cursor-pointer rounded border border-gray-300 bg-gray-300 px-2 py-1 font-semibold focus:outline-2 focus-visible:outline-2"
+            onClick={() => {
+              const airport = parser.airports.find(({ ICAO }) => ICAO === inputRef.current?.value.toUpperCase());
+              if (!airport) {
+                setError('Airport not found');
+                return;
+              }
+              setSelectedAirport(airport);
+              setError(undefined);
+            }}
+          >
+            Select Airport
+          </button>
+          {error && <span className="text-center text-red-700">{error}</span>}
+        </div>
+      )}
+      {selectedAirport && !selectedRunway && (
+        <div className="flex w-full flex-col gap-2">
+          <h1 className="text-center text-3xl">Select Runway</h1>
+          {runways.map((runway) => (
+            <button
+              key={runway.ID}
+              className="w-full cursor-pointer rounded border border-gray-300 bg-gray-300 px-2 py-1 font-semibold focus:outline-2 focus-visible:outline-2"
+              onClick={() => setSelectedRunway(runway)}
+            >
+              Runway {runway.Ident}
+            </button>
+          ))}
+        </div>
+      )}
+      {selectedAirport && selectedRunway && !selectedTerminal && (
+        <div className="flex w-full flex-col gap-2">
+          <h1 className="text-center text-3xl">Select Procedure</h1>
+          {terminals.map((terminal) => (
+            <button
+              key={terminal.ID}
+              className="cursor-pointer rounded border border-gray-300 bg-gray-300 px-2 py-1 font-semibold focus:outline-2 focus-visible:outline-2"
+              onClick={() => {
+                parser.loadTerminal(terminal.ID).then(() => {
+                  setSelectedTerminal(terminal);
+                  const transitions = new Set(parser.procedures.map((proc) => proc.Transition));
+                  handleSelection(Array.from(transitions));
+                });
+              }}
+            >
+              {terminal.FullName}
+            </button>
+          ))}
+        </div>
+      )}
+    </div>
+  );
+};
@@ -0,0 +1,53 @@
+import { type User } from 'navigraph/auth';
+import React, { createContext, useContext, useEffect, useState } from 'react';
+import { auth } from '../lib/navigraph';
+
+interface NavigraphAuthContext {
+  initialized: boolean;
+  user: User | null;
+  signIn: typeof auth.signInWithDeviceFlow;
+}
+
+const authContext = createContext<NavigraphAuthContext>({
+  initialized: false,
+  user: null,
+  signIn: () => Promise.reject('Not initialized'),
+});
+
+// Provider hook that creates auth object and handles state
+function useProvideAuth() {
+  const [user, setUser] = useState<User | null>(null);
+  const [initialized, setinitialized] = useState(false);
+
+  // Subscribe to user on mount
+  // Because this sets state in the callback it will cause any
+  // component that utilizes this hook to re-render with the latest auth object.
+  useEffect(() => {
+    const unsubscribe = auth.onAuthStateChanged((u) => {
+      if (!initialized) setinitialized(true);
+      setUser(u);
+    });
+    // Cleanup subscription on unmount
+    return () => unsubscribe();
+    // eslint-disable-next-line react-hooks/exhaustive-deps
+  }, []);
+
+  return {
+    user,
+    initialized,
+    signIn: auth.signInWithDeviceFlow,
+  };
+}
+
+// Provider component that wraps your app and makes auth object
+// available to any child component that calls useAuth().
+export function NavigraphAuthProvider({ children }: { children: React.ReactNode }) {
+  const auth = useProvideAuth();
+  return <authContext.Provider value={auth}>{children}</authContext.Provider>;
+}
+
+// Hook for child components to get the auth object
+// and re-render when it changes.
+export const useNavigraphAuth = () => {
+  return useContext(authContext);
+};
@@ -1,8 +0,0 @@
-* {
-  box-sizing: border-box;
-}
-
-html,
-body {
-  margin: 0;
-}
@@ -0,0 +1,21 @@
+import { initializeApp, Scope, type NavigraphApp } from 'navigraph/app';
+import { getAuth } from 'navigraph/auth';
+import { getChartsAPI } from 'navigraph/charts';
+
+const config: NavigraphApp = {
+  clientId: import.meta.env.VITE_NG_CLIENT_ID,
+  clientSecret: import.meta.env.VITE_NG_CLIENT_SECRET,
+  scopes: [Scope.CHARTS],
+};
+
+initializeApp(config);
+
+export const auth = getAuth({
+  storage: {
+    // Optional
+    getItem: (key) => localStorage.getItem('NG' + key),
+    setItem: (key, value) => localStorage.setItem('NG' + key, value),
+  },
+});
+
+export const charts = getChartsAPI();
@@ -1,12 +1,14 @@
-import { StrictMode } from "react";
-import { createRoot } from "react-dom/client";
-import App from "./App.tsx";
+import { StrictMode } from 'react';
+import { createRoot } from 'react-dom/client';
+import App from './App.tsx';

-import "./index.css";
-import "leaflet/dist/leaflet.css";
+import 'leaflet/dist/leaflet.css';
+import { NavigraphAuthProvider } from './hooks/useNavigraphAuth.tsx';

-createRoot(document.getElementById("root")!).render(
+createRoot(document.getElementById('root')!).render(
  <StrictMode>
+    <NavigraphAuthProvider>
      <App />
+    </NavigraphAuthProvider>
  </StrictMode>
 );
@@ -1,17 +0,0 @@
-import Parser from "./parser.ts";
-
-// mutate fetch to be local
-
-// @ts-expect-error Global override
-// eslint-disable-next-line no-global-assign
-fetch = async (path: string) => {
-  const fs = await import("fs");
-  return {
-    json: () =>
-      JSON.parse(fs.readFileSync(`public/${path}`) as unknown as string),
-  };
-};
-
-const parser = await Parser.instance();
-
-console.log(JSON.stringify(await parser.parse(12765)));
@@ -1,25 +1,25 @@
-import "./utils/extensions.ts";
-import * as geolib from "geolib";
-import geojson from "geojson";
-import { TerminatorsCF } from "./terminators/CF.ts";
-import { TerminatorsAF } from "./terminators/AF.ts";
-import { TerminatorsCR } from "./terminators/CR.ts";
-import { TerminatorsVM } from "./terminators/VM.ts";
-import { TerminatorsFM } from "./terminators/FM.ts";
-import { TerminatorsCI } from "./terminators/CI.ts";
-import { TerminatorsVA } from "./terminators/VA.ts";
-import { TerminatorsTF } from "./terminators/TF.ts";
-import { TerminatorsVI } from "./terminators/VI.ts";
-import { TerminatorsVD } from "./terminators/VD.ts";
-import { TerminatorsRF } from "./terminators/RF.ts";
-import { TerminatorsCA } from "./terminators/CA.ts";
-import { TerminatorsDF } from "./terminators/DF.ts";
-import { TerminatorsFD } from "./terminators/FD.ts";
-import { TerminatorsFA } from "./terminators/FA.ts";
-import { TerminatorsCD } from "./terminators/CD.ts";
-import { TerminatorsVR } from "./terminators/VR.ts";
-import { TerminatorsIF } from "./terminators/IF.ts";
-import { TerminatorsFC } from "./terminators/FC.ts";
+import geojson from 'geojson';
+import * as geolib from 'geolib';
+import { TerminatorsAF } from './terminators/AF';
+import { TerminatorsCA } from './terminators/CA';
+import { TerminatorsCD } from './terminators/CD';
+import { TerminatorsCF } from './terminators/CF';
+import { TerminatorsCI } from './terminators/CI';
+import { TerminatorsCR } from './terminators/CR';
+import { TerminatorsDF } from './terminators/DF';
+import { TerminatorsFA } from './terminators/FA';
+import { TerminatorsFC } from './terminators/FC';
+import { TerminatorsFD } from './terminators/FD';
+import { TerminatorsFM } from './terminators/FM';
+import { TerminatorsIF } from './terminators/IF';
+import { TerminatorsRF } from './terminators/RF';
+import { TerminatorsTF } from './terminators/TF';
+import { TerminatorsVA } from './terminators/VA';
+import { TerminatorsVD } from './terminators/VD';
+import { TerminatorsVI } from './terminators/VI';
+import { TerminatorsVM } from './terminators/VM';
+import { TerminatorsVR } from './terminators/VR';
+import './utils/extensions';

 /*
 Runway IDs for LIED
@@ -30,19 +30,19 @@ Runway IDs for LIED
 class Parser {
  private static _instance: Parser;

+  private _airports: Airport[];
  private _waypoints: Waypoint[];
  private _runways: Runway[];
  private _terminals: Terminal[];

+  private _procedures: TerminalEntry[] = [];
+
  public static AC_SPEED = 250;
  public static AC_BANK = 30;
  public static AC_VS = 1400;

-  private constructor(
-    waypoints: Waypoint[],
-    runways: Runway[],
-    terminals: Terminal[]
-  ) {
+  private constructor(airports: Airport[], waypoints: Waypoint[], runways: Runway[], terminals: Terminal[]) {
+    this._airports = airports;
    this._waypoints = waypoints;
    this._runways = runways;
    this._terminals = terminals;
@@ -50,16 +50,20 @@ class Parser {

  public static instance = async () => {
    if (!Parser._instance) {
-      const waypoints = await (await fetch("NavData/Waypoints.json")).json();
-      const runways = await (await fetch("NavData/Runways.json")).json();
-      const terminals = await (await fetch("NavData/Terminals.json")).json();
+      const airports = await (await fetch('NavData/Airports.json')).json();
+      const waypoints = await (await fetch('NavData/Waypoints.json')).json();
+      const runways = await (await fetch('NavData/Runways.json')).json();
+      const terminals = await (await fetch('NavData/Terminals.json')).json();

-      Parser._instance = new Parser(waypoints, runways, terminals);
+      Parser._instance = new Parser(airports, waypoints, runways, terminals);
    }

    return Parser._instance;
  };

+  public get airports() {
+    return this._airports;
+  }
  public get terminals() {
    return this._terminals;
  }
@@ -70,32 +74,17 @@ class Parser {
    return this._runways;
  }

-  public parse = async (terminalID: number) => {
-    // Get Procedure main
-    const terminal = this.terminals.find(({ ID }) => ID === terminalID);
-    if (!terminal) throw new Error("Procedure does not exists");
-    // Get runway this procedure is for
-    let runway = this.runways.find(({ ID }) => ID === terminal.RwyID);
-    if (!runway) {
-      let id = 26156;
-      if (typeof prompt !== "undefined")
-        //  throw new Error("Prompt not defined, cannot continue");
-
-        id = Number.parseInt(prompt("Runway ID") ?? "");
-      runway = this.runways.find(({ ID }) => ID === id);
-      if (!runway) throw new Error("Procedure links to non existent Runway");
+  public get procedures() {
+    return this._procedures;
  }
-    // Load procedure
-    const procedures = (await (
-      await fetch(`NavData/TermID_${terminalID}.json`)
+
+  public loadTerminal = async (terminalID: number) => {
+    this._procedures = (await (
+      await fetch(`NavData/ProcedureLegs/TermID_${terminalID}.json`)
    ).json()) as TerminalEntry[];
-    // Split into transitions
-    const transitions = new Set(procedures.map((proc) => proc.Transition));
+  };

-    const output: object[] = [];
-
-    // Main
-    transitions.forEach((transition) => {
+  public parse = (runway: Runway, transition: string) => {
    // Private functions
    /**
     * @param line Line segments
@@ -118,11 +107,7 @@ class Parser {
     * @param line New line
     * @param options Options for line rendering
     */
-      const update = (
-        fix?: NavFix,
-        line?: LineSegment[],
-        options?: Record<string, unknown>
-      ) => {
+    const update = (fix?: NavFix, line?: LineSegment[], options?: Record<string, unknown>) => {
      if (fix) navFixes.push(fix);
      if (line) {
        lineSegments.push({ line, ...options });
@@ -143,54 +128,36 @@ class Parser {
      name: runway.Ident,
    });
    let lastCourse = runway.TrueHeading;
+    const procedure = this._procedures.filter(({ Transition }) => !Transition || Transition === transition);

-      const procedure = procedures.filter(
-        (proc) => proc.Transition === transition
-      );
+    // Main
    for (let index = 0; index < procedure.length; index++) {
      const leg = procedure[index];
      const previousFix = navFixes.at(-1)!;
      const waypoint = this.waypoints.filter(({ ID }) => ID === leg.WptID)[0];

      switch (leg.TrackCode) {
-          case "AF": {
-            const [fixToAdd, lineToAdd] = TerminatorsAF(
-              leg as AFTerminalEntry,
-              previousFix,
-              waypoint
-            );
+        case 'AF': {
+          const [fixToAdd, lineToAdd] = TerminatorsAF(leg as AFTerminalEntry, previousFix, waypoint);
          update(fixToAdd, lineToAdd);
          break;
        }
-          case "CA": {
-            const [fixToAdd, lineToAdd] = TerminatorsCA(
-              leg as CATerminalEntry,
-              previousFix,
-              lastCourse
-            );
+        case 'CA': {
+          const [fixToAdd, lineToAdd] = TerminatorsCA(leg as CATerminalEntry, previousFix, lastCourse);
          update(fixToAdd, lineToAdd);
          break;
        }
-          case "CD": {
-            const [fixToAdd, lineToAdd] = TerminatorsCD(
-              leg as CDTerminalEntry,
-              previousFix,
-              lastCourse
-            );
+        case 'CD': {
+          const [fixToAdd, lineToAdd] = TerminatorsCD(leg as CDTerminalEntry, previousFix, lastCourse);
          update(fixToAdd, lineToAdd);
          break;
        }
-          case "CF": {
-            const [fixToAdd, lineToAdd] = TerminatorsCF(
-              leg as CFTerminalEntry,
-              previousFix,
-              lastCourse,
-              waypoint
-            );
+        case 'CF': {
+          const [fixToAdd, lineToAdd] = TerminatorsCF(leg as CFTerminalEntry, previousFix, lastCourse, waypoint);
          update(fixToAdd, lineToAdd);
          break;
        }
-          case "CI": {
+        case 'CI': {
          const [fixToAdd, lineToAdd] = TerminatorsCI(
            leg as CITerminalEntry,
            procedure[index + 1],
@@ -200,76 +167,51 @@ class Parser {
          update(fixToAdd, lineToAdd);
          break;
        }
-          case "CR": {
-            const [fixToAdd, lineToAdd] = TerminatorsCR(
-              leg as CRTerminalEntry,
-              previousFix,
-              lastCourse
-            );
+        case 'CR': {
+          const [fixToAdd, lineToAdd] = TerminatorsCR(leg as CRTerminalEntry, previousFix, lastCourse);
          update(fixToAdd, lineToAdd);
          break;
        }
-          case "DF": {
-            const [fixToAdd, lineToAdd] = TerminatorsDF(
-              leg as DFTerminalEntry,
-              previousFix,
-              lastCourse,
-              waypoint
-            );
+        case 'DF': {
+          const [fixToAdd, lineToAdd] = TerminatorsDF(leg as DFTerminalEntry, previousFix, lastCourse, waypoint);
          update(fixToAdd, lineToAdd);
          break;
        }
-          case "FA": {
-            const [fixToAdd, lineToAdd] = TerminatorsFA(
-              leg as FATerminalEntry,
-              previousFix,
-              lastCourse
-            );
+        case 'FA': {
+          const [fixToAdd, lineToAdd] = TerminatorsFA(leg as FATerminalEntry, previousFix, lastCourse);
          update(fixToAdd, lineToAdd);
          break;
        }
-          case "FC": {
-            const [fixToAdd, lineToAdd] = TerminatorsFC(
-              leg as FCTerminalEntry,
-              previousFix,
-              lastCourse
-            );
+        case 'FC': {
+          const [fixToAdd, lineToAdd] = TerminatorsFC(leg as FCTerminalEntry, previousFix, lastCourse);
          update(fixToAdd, lineToAdd);
          break;
        }
-          case "FD": {
-            const [fixToAdd, lineToAdd] = TerminatorsFD(
-              leg as FDTerminalEntry,
-              previousFix,
-              lastCourse
-            );
+        case 'FD': {
+          const [fixToAdd, lineToAdd] = TerminatorsFD(leg as FDTerminalEntry, previousFix, lastCourse);
          update(fixToAdd, lineToAdd);
          break;
        }
-          case "FM": {
-            const [fixToAdd, lineToAdd] = TerminatorsFM(
-              leg as FMTerminalEntry,
-              previousFix,
-              lastCourse
-            );
+        case 'FM': {
+          const [fixToAdd, lineToAdd] = TerminatorsFM(leg as FMTerminalEntry, previousFix, lastCourse);
          update(fixToAdd, lineToAdd, { isManual: true });
          break;
        }
-          case "HA":
-          case "HF":
-          case "HM":
-            console.error("Unknown TrackCode", leg.TrackCode);
+        case 'HA':
+        case 'HF':
+        case 'HM':
+          console.error('Unknown TrackCode', leg.TrackCode);
          break;
-          case "IF": {
+        case 'IF': {
          const fixToAdd = TerminatorsIF(leg as RFTerminalEntry, waypoint);
          navFixes.length = 0;
          navFixes.push(fixToAdd);
          break;
        }
-          case "PI":
-            console.error("Unknown TrackCode", leg.TrackCode);
+        case 'PI':
+          console.error('Unknown TrackCode', leg.TrackCode);
          break;
-          case "RF": {
+        case 'RF': {
          const [fixToAdd, lineToAdd] = TerminatorsRF(
            leg as RFTerminalEntry,
            procedure[index + 1],
@@ -280,35 +222,22 @@ class Parser {
          update(fixToAdd, lineToAdd);
          break;
        }
-          case "TF": {
-            const [fixToAdd, lineToAdd] = TerminatorsTF(
-              leg as TFTerminalEntry,
-              previousFix,
-              lastCourse,
-              waypoint
-            );
+        case 'TF': {
+          const [fixToAdd, lineToAdd] = TerminatorsTF(leg as TFTerminalEntry, previousFix, lastCourse, waypoint);
          update(fixToAdd, lineToAdd);
          break;
        }
-          case "VA": {
-            const [fixToAdd, lineToAdd] = TerminatorsVA(
-              leg as VATerminalEntry,
-              previousFix,
-              lastCourse
-            );
+        case 'VA': {
+          const [fixToAdd, lineToAdd] = TerminatorsVA(leg as VATerminalEntry, previousFix, lastCourse);
          update(fixToAdd, lineToAdd);
          break;
        }
-          case "VD": {
-            const [fixToAdd, lineToAdd] = TerminatorsVD(
-              leg as VDTerminalEntry,
-              previousFix,
-              lastCourse
-            );
+        case 'VD': {
+          const [fixToAdd, lineToAdd] = TerminatorsVD(leg as VDTerminalEntry, previousFix, lastCourse);
          update(fixToAdd, lineToAdd);
          break;
        }
-          case "VI": {
+        case 'VI': {
          const [fixToAdd, lineToAdd] = TerminatorsVI(
            leg as VITerminalEntry,
            procedure[index + 1],
@@ -318,39 +247,26 @@ class Parser {
          update(fixToAdd, lineToAdd);
          break;
        }
-          case "VM": {
-            const [fixToAdd, lineToAdd] = TerminatorsVM(
-              leg as VMTerminalEntry,
-              previousFix,
-              lastCourse
-            );
+        case 'VM': {
+          const [fixToAdd, lineToAdd] = TerminatorsVM(leg as VMTerminalEntry, previousFix, lastCourse);
          update(fixToAdd, lineToAdd, { isManual: true });
          break;
        }
-          case "VR": {
-            const [fixToAdd, lineToAdd] = TerminatorsVR(
-              leg as VRTerminalEntry,
-              previousFix,
-              lastCourse
-            );
+        case 'VR': {
+          const [fixToAdd, lineToAdd] = TerminatorsVR(leg as VRTerminalEntry, previousFix, lastCourse);
          update(fixToAdd, lineToAdd);
          break;
        }
        default:
-            console.error("Unknown TrackCode", leg.TrackCode);
+          console.error('Unknown TrackCode', leg.TrackCode);
          break;
      }
    }

-      output.push(
-        geojson.parse([...navFixes, ...lineSegments], {
-          LineString: "line",
-          Point: ["latitude", "longitude"],
-        })
-      );
+    return geojson.parse([...navFixes, ...lineSegments], {
+      LineString: 'line',
+      Point: ['latitude', 'longitude'],
    });
-
-    return output;
  };
 }

@@ -1,4 +1,4 @@
-import * as geolib from "geolib";
+import * as geolib from 'geolib';

 /**
 * @param crsIntoEndpoint Course into arc endpoint
@@ -21,14 +21,14 @@ export const generateAFArc = (

  if (crsIntoEndpoint !== crsFromOrigin) {
    // Turn Dir
-    if (!turnDir || turnDir === "E") {
+    if (!turnDir || turnDir === 'E') {
      let prov = crsFromOrigin - crsIntoEndpoint;
      prov = prov > 180 ? prov - 360 : prov <= -180 ? prov + 360 : prov;
-      turnDir = prov > 0 ? "L" : "R";
+      turnDir = prov > 0 ? 'L' : 'R';
    }

    while (crsFromOrigin !== crsIntoEndpoint) {
-      if (turnDir === "R") {
+      if (turnDir === 'R') {
        const delta = (crsIntoEndpoint - crsFromOrigin).normaliseDegrees();
        crsFromOrigin += delta < 1 ? delta : 1;
        crsFromOrigin = crsFromOrigin.normaliseDegrees();
@@ -39,11 +39,7 @@ export const generateAFArc = (
      }
      if (crsFromOrigin === crsIntoEndpoint) break;

-      const arcFix = geolib.computeDestinationPoint(
-        center,
-        radius.toMetre(),
-        crsFromOrigin
-      );
+      const arcFix = geolib.computeDestinationPoint(center, radius.toMetre(), crsFromOrigin);

      line.push([arcFix.longitude, arcFix.latitude]);
    }
@@ -0,0 +1,44 @@
+import * as geolib from 'geolib';
+import { generatePerformanceArc } from './generatePerformanceArc';
+
+/**
+ * @param crsIntoEndpoint Course into arc endpoint
+ * @param crsFromOrigin Course from arc origin point
+ * @param start Arc origin point
+ * @param speed Speed within arc
+ * @param turnDir Turn direction
+ * @returns Line segments, arc endpoint, course into arc endpoint
+ */
+export const generateOverflyArc = (
+  crsIntoEndpoint: number,
+  crsFromOrigin: number,
+  start: NavFix,
+  speed: number,
+  turnDir?: TurnDirection,
+  force360?: boolean
+): [LineSegment[], NavFix, number] => {
+  let line: LineSegment[] = [];
+
+  // Compute overfly arc
+  if (start.isFlyOver) {
+    line = generatePerformanceArc(crsIntoEndpoint, crsFromOrigin, start, speed, turnDir, force360);
+  }
+  // Compute procedural arc
+  else {
+    line.push([start.longitude, start.latitude]);
+  }
+
+  // Get arc endpoint and crs into arc endpoint
+  const arcEnd = { latitude: line.at(-1)![1], longitude: line.at(-1)![0] };
+  if (line.length > 1) {
+    crsFromOrigin = geolib.getGreatCircleBearing(
+      {
+        latitude: line.at(-2)![1],
+        longitude: line.at(-2)![0],
+      },
+      arcEnd
+    );
+  }
+
+  return [line, arcEnd, crsFromOrigin];
+};
@@ -1,6 +1,6 @@
-import * as geolib from "geolib";
-import Parser from "../parser.ts";
-import { computeTurnRate } from "../utils/computeTurnRate.ts";
+import * as geolib from 'geolib';
+import Parser from '../parser';
+import { computeTurnRate } from '../utils/computeTurnRate';

 /**
 * @param crsIntoEndpoint Course into arc endpoint
@@ -27,16 +27,16 @@ export const generatePerformanceArc = (
  // Check if there even is an arc
  if (force360 || !crsFromOrigin.equal(crsIntoEndpoint)) {
    // Turn Dir
-    if (!turnDir || turnDir === "E") {
+    if (!turnDir || turnDir === 'E') {
      let prov = crsFromOrigin - crsIntoEndpoint;
      prov = prov > 180 ? prov - 360 : prov <= -180 ? prov + 360 : prov;
-      turnDir = prov > 0 ? "L" : "R";
+      turnDir = prov > 0 ? 'L' : 'R';
    }

    // Generate arc
    while (!crsFromOrigin.equal(crsIntoEndpoint)) {
      let time = 0;
-      if (turnDir === "R") {
+      if (turnDir === 'R') {
        const delta = (crsIntoEndpoint - crsFromOrigin).normaliseDegrees();
        const increment = delta < 1 ? delta : 1;
        crsFromOrigin = (crsFromOrigin + increment).normaliseDegrees();
@@ -68,7 +68,7 @@ export const generatePerformanceArc = (

      while (!crsFromOrigin.equal(crsIntoEndpoint)) {
        let time = 0;
-        if (turnDir === "R") {
+        if (turnDir === 'R') {
          const delta = (crsIntoEndpoint - crsFromOrigin).normaliseDegrees();
          const increment = delta < 1 ? delta : 1;
          crsFromOrigin = (crsFromOrigin + increment).normaliseDegrees();
@@ -1,4 +1,4 @@
-import * as geolib from "geolib";
+import * as geolib from 'geolib';

 /**
 * @param crsIntoEndpoint Course into arc endpoint
@@ -19,15 +19,15 @@ export const generateRFArc = (

  if (crsIntoEndpoint !== crsIntoOrigin) {
    // Turn Dir
-    if (!turnDir || turnDir === "E") {
+    if (!turnDir || turnDir === 'E') {
      let prov = crsIntoOrigin - crsIntoEndpoint;
      prov = prov > 180 ? prov - 360 : prov <= -180 ? prov + 360 : prov;
-      turnDir = prov > 0 ? "L" : "R";
+      turnDir = prov > 0 ? 'L' : 'R';
    }

    let crsOrthogonalOnOrigin;
    let crsOrthogonalOnEndpoint;
-    if (turnDir === "R") {
+    if (turnDir === 'R') {
      crsOrthogonalOnOrigin = (crsIntoOrigin + 90).normaliseDegrees();
      crsOrthogonalOnEndpoint = (crsIntoEndpoint + 90).normaliseDegrees();
    } else {
@@ -40,34 +40,24 @@ export const generateRFArc = (
    crsOrthogonalOnOrigin = crsOrthogonalOnOrigin.reciprocalCourse();
    crsOrthogonalOnEndpoint = crsOrthogonalOnEndpoint.reciprocalCourse();
    // Start turn immediately
-    if (turnDir === "R") {
-      crsOrthogonalOnOrigin +=
-        crsOrthogonalOnOrigin < 1 ? crsOrthogonalOnOrigin : 1;
+    if (turnDir === 'R') {
+      crsOrthogonalOnOrigin += crsOrthogonalOnOrigin < 1 ? crsOrthogonalOnOrigin : 1;
    } else {
-      crsOrthogonalOnOrigin -=
-        crsOrthogonalOnOrigin < 1 ? crsOrthogonalOnOrigin : 1;
+      crsOrthogonalOnOrigin -= crsOrthogonalOnOrigin < 1 ? crsOrthogonalOnOrigin : 1;
    }

    while (crsOrthogonalOnOrigin !== crsOrthogonalOnEndpoint) {
-      if (turnDir === "R") {
-        const delta = (
-          crsOrthogonalOnEndpoint - crsOrthogonalOnOrigin
-        ).normaliseDegrees();
+      if (turnDir === 'R') {
+        const delta = (crsOrthogonalOnEndpoint - crsOrthogonalOnOrigin).normaliseDegrees();
        crsOrthogonalOnOrigin += delta < 1 ? delta : 1;
        crsOrthogonalOnOrigin = crsOrthogonalOnOrigin.normaliseDegrees();
      } else {
-        const delta = (
-          crsOrthogonalOnOrigin - crsOrthogonalOnEndpoint
-        ).normaliseDegrees();
+        const delta = (crsOrthogonalOnOrigin - crsOrthogonalOnEndpoint).normaliseDegrees();
        crsOrthogonalOnOrigin -= delta < 1 ? delta : 1;
        crsOrthogonalOnOrigin = crsOrthogonalOnOrigin.normaliseDegrees();
      }

-      const arcFix = geolib.computeDestinationPoint(
-        center,
-        arcRad,
-        crsOrthogonalOnOrigin
-      );
+      const arcFix = geolib.computeDestinationPoint(center, arcRad, crsOrthogonalOnOrigin);

      line.push([arcFix.longitude, arcFix.latitude]);
    }
@@ -1,5 +1,5 @@
-import * as geolib from "geolib";
-import { computeIntersection } from "../utils/computeIntersection.ts";
+import * as geolib from 'geolib';
+import { computeIntersection } from '../utils/computeIntersection';

 /**
 * @param crsIntoEndpoint Course into arc endpoint
@@ -22,12 +22,12 @@ export const generateTangentArc = (
  if (!crsFromOrigin.equal(crsIntoEndpoint)) {
    // Course to the end of the arc
    let crsFromStartToEnd;
-    if (!turnDir || turnDir === "E") {
+    if (!turnDir || turnDir === 'E') {
      let prov = crsFromOrigin - crsIntoEndpoint;
      prov = prov > 180 ? prov - 360 : prov <= -180 ? prov + 360 : prov;
-      turnDir = prov > 0 ? "L" : "R";
+      turnDir = prov > 0 ? 'L' : 'R';
    }
-    if (turnDir === "R") {
+    if (turnDir === 'R') {
      const delta = (360 - crsFromOrigin + crsIntoEndpoint).normaliseDegrees();
      crsFromStartToEnd = (crsFromOrigin + delta / 2).normaliseDegrees();
    } else {
@@ -46,7 +46,7 @@ export const generateTangentArc = (

    let crsOrthogonalOnOrigin;
    let crsOrthogonalOnEndpoint;
-    if (turnDir === "R") {
+    if (turnDir === 'R') {
      crsOrthogonalOnOrigin = (crsFromOrigin + 90).normaliseDegrees();
      crsOrthogonalOnEndpoint = (crsIntoEndpoint + 90).normaliseDegrees();
    } else {
@@ -67,34 +67,24 @@ export const generateTangentArc = (
    crsOrthogonalOnOrigin = crsOrthogonalOnOrigin.reciprocalCourse();
    crsOrthogonalOnEndpoint = crsOrthogonalOnEndpoint.reciprocalCourse();
    // Start turn immediately
-    if (turnDir === "R") {
-      crsOrthogonalOnOrigin +=
-        crsOrthogonalOnOrigin < 1 ? crsOrthogonalOnOrigin : 1;
+    if (turnDir === 'R') {
+      crsOrthogonalOnOrigin += crsOrthogonalOnOrigin < 1 ? crsOrthogonalOnOrigin : 1;
    } else {
-      crsOrthogonalOnOrigin -=
-        crsOrthogonalOnOrigin < 1 ? crsOrthogonalOnOrigin : 1;
+      crsOrthogonalOnOrigin -= crsOrthogonalOnOrigin < 1 ? crsOrthogonalOnOrigin : 1;
    }

    while (!crsOrthogonalOnOrigin.equal(crsOrthogonalOnEndpoint)) {
-      if (turnDir === "R") {
-        const delta = (
-          crsOrthogonalOnEndpoint - crsOrthogonalOnOrigin
-        ).normaliseDegrees();
+      if (turnDir === 'R') {
+        const delta = (crsOrthogonalOnEndpoint - crsOrthogonalOnOrigin).normaliseDegrees();
        crsOrthogonalOnOrigin += delta < 1 ? delta : 1;
        crsOrthogonalOnOrigin = crsOrthogonalOnOrigin.normaliseDegrees();
      } else {
-        const delta = (
-          crsOrthogonalOnOrigin - crsOrthogonalOnEndpoint
-        ).normaliseDegrees();
+        const delta = (crsOrthogonalOnOrigin - crsOrthogonalOnEndpoint).normaliseDegrees();
        crsOrthogonalOnOrigin -= delta < 1 ? delta : 1;
        crsOrthogonalOnOrigin = crsOrthogonalOnOrigin.normaliseDegrees();
      }

-      const arcFix = geolib.computeDestinationPoint(
-        arcCenter,
-        arcRad,
-        crsOrthogonalOnOrigin
-      );
+      const arcFix = geolib.computeDestinationPoint(arcCenter, arcRad, crsOrthogonalOnOrigin);

      line.push([arcFix.longitude, arcFix.latitude]);
    }
@@ -1,6 +1,6 @@
-import * as geolib from "geolib";
-import { generateTangentArc } from "./generateTangentArc.ts";
-import { generatePerformanceArc } from "./generatePerformanceArc.ts";
+import * as geolib from 'geolib';
+import { generatePerformanceArc } from './generatePerformanceArc';
+import { generateTangentArc } from './generateTangentArc';

 /**
 * @param crsIntoEndpoint Course into endpoint
@@ -25,21 +25,9 @@ export const handleTurnAtFix = (

  // Overfly turn
  if (start.isFlyOver) {
-    const arc1 = generateTangentArc(
-      crsIntoEndpoint,
-      crsFromOrigin,
-      start,
-      end,
-      turnDir
-    );
+    const arc1 = generateTangentArc(crsIntoEndpoint, crsFromOrigin, start, end, turnDir);

-    const arc2 = generatePerformanceArc(
-      crsIntoIntercept,
-      crsFromOrigin,
-      start,
-      speed,
-      turnDir
-    );
+    const arc2 = generatePerformanceArc(crsIntoIntercept, crsFromOrigin, start, speed, turnDir);

    // Decide on arc
    let arc;
@@ -52,8 +40,7 @@ export const handleTurnAtFix = (
        end
      );

-      if (endCrs <= crsIntoEndpoint + 1 && endCrs >= crsIntoEndpoint - 1)
-        arc = arc1;
+      if (endCrs <= crsIntoEndpoint + 1 && endCrs >= crsIntoEndpoint - 1) arc = arc1;
      else arc = arc2;
    } else {
      arc = arc2;
@@ -1,6 +1,6 @@
-import * as geolib from "geolib";
-import { generateAFArc } from "../pathGenerators/generateAFArc.ts";
-import { computeSpeed } from "../utils/computeSpeed.ts";
+import * as geolib from 'geolib';
+import { generateAFArc } from '../pathGenerators/generateAFArc';
+import { computeSpeed } from '../utils/computeSpeed';

 export const TerminatorsAF = (
  leg: AFTerminalEntry,
@@ -1,7 +1,7 @@
-import * as geolib from "geolib";
-import Parser from "../parser.ts";
-import { computeSpeed } from "../utils/computeSpeed.ts";
-import { generatePerformanceArc } from "../pathGenerators/generatePerformanceArc.ts";
+import * as geolib from 'geolib';
+import Parser from '../parser';
+import { generateOverflyArc } from '../pathGenerators/generateOverflyArc';
+import { computeSpeed } from '../utils/computeSpeed';

 export const TerminatorsCA = (
  leg: CATerminalEntry,
@@ -11,37 +11,16 @@ export const TerminatorsCA = (
  const speed = computeSpeed(leg, previousFix);
  const crsIntoEndpoint = leg.Course.toTrue(previousFix);

-  let line: LineSegment[] = [];
-
-  if (previousFix.isFlyOver) {
-    line = generatePerformanceArc(
-      crsIntoEndpoint,
-      lastCourse,
-      previousFix,
-      speed,
-      leg.TurnDir
-    );
-  } else {
-    line.push([previousFix.longitude, previousFix.latitude]);
-  }
-
-  const arcEnd = { latitude: line.at(-1)![1], longitude: line.at(-1)![0] };
-  if (line.length > 1) {
-    lastCourse = geolib.getGreatCircleBearing(
-      {
-        latitude: line.at(-2)![1],
-        longitude: line.at(-2)![0],
-      },
-      arcEnd
-    );
-  }
+  // Compute overfly
+  const [line, arcEnd, _lastCourse] = generateOverflyArc(crsIntoEndpoint, lastCourse, previousFix, speed, leg.TurnDir);
+  lastCourse = _lastCourse;

+  // Compute intercept of crs from arc end and expected altitude
  const targetFix: NavFix = {
    ...geolib.computeDestinationPoint(
      arcEnd,
      (
-        ((leg.Alt.parseAltitude() - (previousFix.altitude ?? 0)) /
-          Parser.AC_VS) *
+        ((leg.Alt.parseAltitude() - (previousFix.altitude ?? 0)) / Parser.AC_VS) *
        ((previousFix.speed ? previousFix.speed : Parser.AC_SPEED) / 60)
      ).toMetre(),
      crsIntoEndpoint
@@ -53,7 +32,6 @@ export const TerminatorsCA = (
    speedConstraint: leg.SpeedLimit,
    altitudeConstraint: leg.Alt,
  };
-
  line.push([targetFix.longitude, targetFix.latitude]);

  return [targetFix, line];
@@ -1,6 +1,6 @@
-import * as geolib from "geolib";
-import { computeSpeed } from "../utils/computeSpeed.ts";
-import { generatePerformanceArc } from "../pathGenerators/generatePerformanceArc.ts";
+import * as geolib from 'geolib';
+import { generateOverflyArc } from '../pathGenerators/generateOverflyArc';
+import { computeSpeed } from '../utils/computeSpeed';

 // NOTE: Distance not adjusted for altitude in this demo
 export const TerminatorsCD = (
@@ -12,35 +12,14 @@ export const TerminatorsCD = (
    latitude: leg.NavLat,
    longitude: leg.NavLon,
  };
+  const crsIntoEndpoint = leg.Course.toTrue(previousFix);
  const speed = computeSpeed(leg, previousFix);

-  let line: LineSegment[] = [];
-
-  if (previousFix.isFlyOver) {
-    const crsIntoEndpoint = leg.Course.toTrue(previousFix);
-
-    line = generatePerformanceArc(
-      crsIntoEndpoint,
-      lastCourse,
-      previousFix,
-      speed,
-      leg.TurnDir
-    );
-  } else {
-    line.push([previousFix.longitude, previousFix.latitude]);
-  }
-
-  const arcEnd = { latitude: line.at(-1)![1], longitude: line.at(-1)![0] };
-  if (line.length > 1) {
-    lastCourse = geolib.getGreatCircleBearing(
-      {
-        latitude: line.at(-2)![1],
-        longitude: line.at(-2)![0],
-      },
-      arcEnd
-    );
-  }
+  // Compute overfly
+  const [line, arcEnd, _lastCourse] = generateOverflyArc(crsIntoEndpoint, lastCourse, previousFix, speed, leg.TurnDir);
+  lastCourse = _lastCourse;

+  // Compute distance to fly from arc end
  const crsToNavaid = geolib.getGreatCircleBearing(arcEnd, navaid);
  const distToNavaid = geolib.getDistance(arcEnd, navaid);
  let remainingDistance = leg.Distance.toMetre();
@@ -51,9 +30,10 @@ export const TerminatorsCD = (
  // Navaid in front of us
  else {
    // Navaid will not be passed before distance is hit
-    if (distToNavaid > remainingDistance)
-      remainingDistance = distToNavaid - remainingDistance;
+    if (distToNavaid > remainingDistance) remainingDistance = distToNavaid - remainingDistance;
  }
+
+  // Compute intercept of crs from arc end and distance
  const targetFix: NavFix = {
    ...geolib.computeDestinationPoint(arcEnd, remainingDistance, lastCourse),
    name: leg.Distance.toString(),
@@ -63,7 +43,6 @@ export const TerminatorsCD = (
    speedConstraint: leg.SpeedLimit,
    altitudeConstraint: leg.Alt,
  };
-
  line.push([targetFix.longitude, targetFix.latitude]);

  return [targetFix, line];
@@ -1,5 +1,5 @@
-import { handleTurnAtFix } from "../pathGenerators/handleTurnAtFix.ts";
-import { computeSpeed } from "../utils/computeSpeed.ts";
+import { handleTurnAtFix } from '../pathGenerators/handleTurnAtFix';
+import { computeSpeed } from '../utils/computeSpeed';

 export const TerminatorsCF = (
  leg: CFTerminalEntry,
@@ -20,6 +20,7 @@ export const TerminatorsCF = (
    altitudeConstraint: leg.Alt,
  };

+  // Compute arc
  const line = handleTurnAtFix(
    leg.Course.toTrue(previousFix),
    leg.Course.toTrue(previousFix),
@@ -1,7 +1,7 @@
-import { handleTurnAtFix } from "../pathGenerators/handleTurnAtFix.ts";
-import { computeIntersection } from "../utils/computeIntersection.ts";
-import { computeSpeed } from "../utils/computeSpeed.ts";
-import { getCourseAndFixForIntercepts } from "../utils/getCourseAndFixForIntercepts.ts";
+import { handleTurnAtFix } from '../pathGenerators/handleTurnAtFix';
+import { computeIntersection } from '../utils/computeIntersection';
+import { computeSpeed } from '../utils/computeSpeed';
+import { getCourseAndFixForIntercepts } from '../utils/getCourseAndFixForIntercepts';

 export const TerminatorsCI = (
  leg: CITerminalEntry,
@@ -12,14 +12,9 @@ export const TerminatorsCI = (
  const [crs, nextFix] = getCourseAndFixForIntercepts(nextLeg, previousFix);
  const speed = computeSpeed(leg, previousFix);

-  // Compute INTC
+  // Compute intercept fix
  const interceptFix: NavFix = {
-    ...computeIntersection(
-      previousFix,
-      leg.Course.toTrue(nextFix),
-      nextFix,
-      crs
-    )!,
+    ...computeIntersection(previousFix, leg.Course.toTrue(nextFix), nextFix, crs)!,
    isFlyOver: leg.IsFlyOver,
    altitude: leg.Alt ? leg.Alt.parseAltitude() : previousFix.altitude,
    speed: speed,
@@ -27,6 +22,7 @@ export const TerminatorsCI = (
    altitudeConstraint: leg.Alt,
  };

+  // Compute arc
  const line = handleTurnAtFix(
    crs,
    leg.Course.toTrue(nextFix),
@@ -37,7 +33,7 @@ export const TerminatorsCI = (
    leg.TurnDir
  );

-  // Intercept based on previous intercept
+  // Recompute intercept
  const interceptPoint2 = computeIntersection(
    { latitude: line.at(-2)![1], longitude: line.at(-2)![0] },
    leg.Course.toTrue(nextFix),
@@ -47,10 +43,7 @@ export const TerminatorsCI = (
  if (interceptPoint2)
    return [
      { ...interceptFix, ...interceptPoint2 },
-      [
-        ...line.slice(0, -1),
-        [interceptPoint2.longitude, interceptPoint2.latitude],
-      ],
+      [...line.slice(0, -1), [interceptPoint2.longitude, interceptPoint2.latitude]],
    ];

  return [interceptFix, line];
@@ -1,7 +1,6 @@
-import * as geolib from "geolib";
-import { computeIntersection } from "../utils/computeIntersection.ts";
-import { computeSpeed } from "../utils/computeSpeed.ts";
-import { generatePerformanceArc } from "../pathGenerators/generatePerformanceArc.ts";
+import { generateOverflyArc } from '../pathGenerators/generateOverflyArc';
+import { computeIntersection } from '../utils/computeIntersection';
+import { computeSpeed } from '../utils/computeSpeed';

 export const TerminatorsCR = (
  leg: CRTerminalEntry,
@@ -16,31 +15,11 @@ export const TerminatorsCR = (
  const crsIntoEndpoint = leg.NavBear.toTrue(navaid);
  const speed = computeSpeed(leg, previousFix);

-  let line: LineSegment[] = [];
-
-  if (previousFix.isFlyOver) {
-    line = generatePerformanceArc(
-      crsFromEndpoint,
-      lastCourse,
-      previousFix,
-      speed,
-      leg.TurnDir
-    );
-  } else {
-    line.push([previousFix.longitude, previousFix.latitude]);
-  }
-
-  const arcEnd = { latitude: line.at(-1)![1], longitude: line.at(-1)![0] };
-  if (line.length > 1) {
-    lastCourse = geolib.getGreatCircleBearing(
-      {
-        latitude: line.at(-2)![1],
-        longitude: line.at(-2)![0],
-      },
-      arcEnd
-    );
-  }
+  // Compute overfly
+  const [line, arcEnd, _lastCourse] = generateOverflyArc(crsFromEndpoint, lastCourse, previousFix, speed, leg.TurnDir);
+  lastCourse = _lastCourse;

+  // Compute intercept of crs from arc end and radial
  const interceptFix: NavFix = {
    ...computeIntersection(arcEnd, crsFromEndpoint, navaid, crsIntoEndpoint)!,
    isFlyOver: leg.IsFlyOver,
@@ -1,6 +1,6 @@
-import * as geolib from "geolib";
-import { computeSpeed } from "../utils/computeSpeed.ts";
-import { generatePerformanceArc } from "../pathGenerators/generatePerformanceArc.ts";
+import * as geolib from 'geolib';
+import { generateOverflyArc } from '../pathGenerators/generateOverflyArc';
+import { computeSpeed } from '../utils/computeSpeed';

 export const TerminatorsDF = (
  leg: DFTerminalEntry,
@@ -21,26 +21,18 @@ export const TerminatorsDF = (
    altitudeConstraint: leg.Alt,
  };

-  let line: LineSegment[] = [];
+  const crsIntoEndpoint = geolib.getGreatCircleBearing(previousFix, targetFix);

-  if (previousFix.isFlyOver) {
-    const crsIntoEndpoint = geolib.getGreatCircleBearing(
-      previousFix,
-      targetFix
-    );
-
-    line = generatePerformanceArc(
+  // Compute overfly
+  const [line, _, _lastCourse] = generateOverflyArc(
    crsIntoEndpoint,
    lastCourse,
    previousFix,
    speed,
    leg.TurnDir,
-      previousFix.latitude.equal(targetFix.latitude) &&
-        previousFix.longitude.equal(targetFix.longitude)
+    previousFix.latitude.equal(targetFix.latitude) && previousFix.longitude.equal(targetFix.longitude)
  );
-  } else {
-    line.push([previousFix.longitude, previousFix.latitude]);
-  }
+  lastCourse = _lastCourse;

  line.push([targetFix.longitude, targetFix.latitude]);

@@ -1,7 +1,7 @@
-import * as geolib from "geolib";
-import { computeSpeed } from "../utils/computeSpeed.ts";
-import Parser from "../parser.ts";
-import { generatePerformanceArc } from "../pathGenerators/generatePerformanceArc.ts";
+import * as geolib from 'geolib';
+import Parser from '../parser';
+import { generateOverflyArc } from '../pathGenerators/generateOverflyArc';
+import { computeSpeed } from '../utils/computeSpeed';

 export const TerminatorsFA = (
  leg: FATerminalEntry,
@@ -15,37 +15,16 @@ export const TerminatorsFA = (
  const speed = computeSpeed(leg, previousFix);
  const crsIntoEndpoint = leg.Course.toTrue(refFix);

-  let line: LineSegment[] = [];
-
-  if (previousFix.isFlyOver) {
-    line = generatePerformanceArc(
-      crsIntoEndpoint,
-      lastCourse,
-      previousFix,
-      speed,
-      leg.TurnDir
-    );
-  } else {
-    line.push([previousFix.longitude, previousFix.latitude]);
-  }
-
-  const arcEnd = { latitude: line.at(-1)![1], longitude: line.at(-1)![0] };
-  if (line.length > 1) {
-    lastCourse = geolib.getGreatCircleBearing(
-      {
-        latitude: line.at(-2)![1],
-        longitude: line.at(-2)![0],
-      },
-      arcEnd
-    );
-  }
+  // Compute overfly
+  const [line, arcEnd, _lastCourse] = generateOverflyArc(crsIntoEndpoint, lastCourse, previousFix, speed, leg.TurnDir);
+  lastCourse = _lastCourse;

+  // Compute intercept of crs from arc end and expected altitude
  const targetFix: NavFix = {
    ...geolib.computeDestinationPoint(
      arcEnd,
      (
-        ((leg.Alt.parseAltitude() - (previousFix.altitude ?? 0)) /
-          Parser.AC_VS) *
+        ((leg.Alt.parseAltitude() - (previousFix.altitude ?? 0)) / Parser.AC_VS) *
        ((previousFix.speed ? previousFix.speed : Parser.AC_SPEED) / 60)
      ).toMetre(),
      crsIntoEndpoint
@@ -57,7 +36,6 @@ export const TerminatorsFA = (
    speedConstraint: leg.SpeedLimit,
    altitudeConstraint: leg.Alt,
  };
-
  line.push([targetFix.longitude, targetFix.latitude]);

  return [targetFix, line];
@@ -1,7 +1,7 @@
-import * as geolib from "geolib";
-import { computeSpeed } from "../utils/computeSpeed.ts";
-import Parser from "../parser.ts";
-import { computeTurnRate } from "../utils/computeTurnRate.ts";
+import * as geolib from 'geolib';
+import Parser from '../parser';
+import { computeSpeed } from '../utils/computeSpeed';
+import { computeTurnRate } from '../utils/computeTurnRate';

 // NOTE: Distance not adjusted for altitude in this demo
 export const TerminatorsFC = (
@@ -20,22 +20,22 @@ export const TerminatorsFC = (
  const line: LineSegment[] = [[previousFix.longitude, previousFix.latitude]];

  if (previousFix.isFlyOver) {
-    let crsIntoEndpoint = trackIntoEndpoint;
+    const crsIntoEndpoint = trackIntoEndpoint;

    // Check if there even is an arc
    if (!crsIntoEndpoint.equal(lastCourse)) {
      // Turn Dir
-      if (!leg.TurnDir || leg.TurnDir === "E") {
+      if (!leg.TurnDir || leg.TurnDir === 'E') {
        let prov = lastCourse - crsIntoEndpoint;
        prov = prov > 180 ? prov - 360 : prov <= -180 ? prov + 360 : prov;
-        leg.TurnDir = prov > 0 ? "L" : "R";
+        leg.TurnDir = prov > 0 ? 'L' : 'R';
      }

      // Generate arc
      let condition = false;
      do {
        let time = 0;
-        if (leg.TurnDir === "R") {
+        if (leg.TurnDir === 'R') {
          const delta = (crsIntoEndpoint - lastCourse).normaliseDegrees();
          const increment = delta < 1 ? delta : 1;
          lastCourse = (lastCourse + increment).normaliseDegrees();
@@ -58,7 +58,7 @@ export const TerminatorsFC = (

        line.push([arcFix.longitude, arcFix.latitude]);

-        if (leg.TurnDir === "R") {
+        if (leg.TurnDir === 'R') {
          condition = lastCourse > trackIntoEndpoint;
        } else {
          condition = lastCourse < trackIntoEndpoint;
@@ -79,11 +79,7 @@ export const TerminatorsFC = (
  }

  const targetFix: NavFix = {
-    ...geolib.computeDestinationPoint(
-      arcEnd,
-      leg.Distance.toMetre(),
-      lastCourse
-    ),
+    ...geolib.computeDestinationPoint(arcEnd, leg.Distance.toMetre(), lastCourse),
    name: leg.Distance.toString(),
    isFlyOver: true,
    altitude: leg.Alt ? leg.Alt.parseAltitude() : previousFix.altitude,
@@ -1,6 +1,6 @@
-import * as geolib from "geolib";
-import { computeSpeed } from "../utils/computeSpeed.ts";
-import { generatePerformanceArc } from "../pathGenerators/generatePerformanceArc.ts";
+import * as geolib from 'geolib';
+import { generateOverflyArc } from '../pathGenerators/generateOverflyArc';
+import { computeSpeed } from '../utils/computeSpeed';

 // NOTE: Distance not adjusted for altitude in this demo
 export const TerminatorsFD = (
@@ -16,35 +16,14 @@ export const TerminatorsFD = (
    latitude: leg.NavLat,
    longitude: leg.NavLon,
  };
+  const crsIntoEndpoint = leg.Course.toTrue(refFix);
  const speed = computeSpeed(leg, previousFix);

-  let line: LineSegment[] = [];
-
-  if (previousFix.isFlyOver) {
-    const crsIntoEndpoint = leg.Course.toTrue(refFix);
-
-    line = generatePerformanceArc(
-      crsIntoEndpoint,
-      lastCourse,
-      previousFix,
-      speed,
-      leg.TurnDir
-    );
-  } else {
-    line.push([previousFix.longitude, previousFix.latitude]);
-  }
-
-  const arcEnd = { latitude: line.at(-1)![1], longitude: line.at(-1)![0] };
-  if (line.length > 1) {
-    lastCourse = geolib.getGreatCircleBearing(
-      {
-        latitude: line.at(-2)![1],
-        longitude: line.at(-2)![0],
-      },
-      arcEnd
-    );
-  }
+  // Compute overfly
+  const [line, arcEnd, _lastCourse] = generateOverflyArc(crsIntoEndpoint, lastCourse, previousFix, speed, leg.TurnDir);
+  lastCourse = _lastCourse;

+  // Compute distance to fly from arc end
  const crsToNavaid = geolib.getGreatCircleBearing(arcEnd, navaid);
  const distToNavaid = geolib.getDistance(arcEnd, navaid);
  let remainingDistance = leg.Distance.toMetre();
@@ -55,9 +34,10 @@ export const TerminatorsFD = (
  // Navaid in front of us
  else {
    // Navaid will not be passed before distance is hit
-    if (distToNavaid > remainingDistance)
-      remainingDistance = distToNavaid - remainingDistance;
+    if (distToNavaid > remainingDistance) remainingDistance = distToNavaid - remainingDistance;
  }
+
+  // Compute intercept of crs from arc end and distance
  const targetFix: NavFix = {
    ...geolib.computeDestinationPoint(arcEnd, remainingDistance, lastCourse),
    name: leg.Distance.toString(),
@@ -67,7 +47,6 @@ export const TerminatorsFD = (
    speedConstraint: leg.SpeedLimit,
    altitudeConstraint: leg.Alt,
  };
-
  line.push([targetFix.longitude, targetFix.latitude]);

  return [targetFix, line];
@@ -1,6 +1,6 @@
-import * as geolib from "geolib";
-import { handleTurnAtFix } from "../pathGenerators/handleTurnAtFix.ts";
-import { computeSpeed } from "../utils/computeSpeed.ts";
+import * as geolib from 'geolib';
+import { handleTurnAtFix } from '../pathGenerators/handleTurnAtFix';
+import { computeSpeed } from '../utils/computeSpeed';

 export const TerminatorsFM = (
  leg: FMTerminalEntry,
@@ -9,11 +9,7 @@ export const TerminatorsFM = (
 ): [NavFix?, LineSegment[]?] => {
  const speed = computeSpeed(leg, previousFix);

-  const endpoint = geolib.computeDestinationPoint(
-    previousFix,
-    (10).toMetre(),
-    leg.Course.toTrue(previousFix)
-  );
+  const endpoint = geolib.computeDestinationPoint(previousFix, (10).toMetre(), leg.Course.toTrue(previousFix));

  const line = handleTurnAtFix(
    leg.Course.toTrue(previousFix),
@@ -1,9 +1,6 @@
-import Parser from "../parser.ts";
+import Parser from '../parser';

-export const TerminatorsIF = (
-  leg: IFTerminalEntry,
-  waypoint?: Waypoint
-): NavFix => {
+export const TerminatorsIF = (leg: IFTerminalEntry, waypoint?: Waypoint): NavFix => {
  const targetFix: NavFix = {
    latitude: leg.WptLat,
    longitude: leg.WptLon,
@@ -1,6 +1,6 @@
-import { getCourseAndFixForIntercepts } from "../utils/getCourseAndFixForIntercepts.ts";
-import { generateRFArc } from "../pathGenerators/generateRFArc.ts";
-import { computeSpeed } from "../utils/computeSpeed.ts";
+import { generateRFArc } from '../pathGenerators/generateRFArc';
+import { computeSpeed } from '../utils/computeSpeed';
+import { getCourseAndFixForIntercepts } from '../utils/getCourseAndFixForIntercepts';

 export const TerminatorsRF = (
  leg: RFTerminalEntry,
@@ -1,6 +1,6 @@
-import * as geolib from "geolib";
-import { computeSpeed } from "../utils/computeSpeed.ts";
-import Parser from "../parser.ts";
+import * as geolib from 'geolib';
+import Parser from '../parser';
+import { computeSpeed } from '../utils/computeSpeed';

 export const TerminatorsTF = (
  leg: TFTerminalEntry,
@@ -21,10 +21,7 @@ export const TerminatorsTF = (

  const line: LineSegment[] = [[previousFix.longitude, previousFix.latitude]];

-  const trackIntoEndpoint = geolib.getGreatCircleBearing(
-    previousFix,
-    targetFix
-  );
+  const trackIntoEndpoint = geolib.getGreatCircleBearing(previousFix, targetFix);

  if (previousFix.isFlyOver) {
    let crsIntoEndpoint = trackIntoEndpoint;
@@ -32,16 +29,16 @@ export const TerminatorsTF = (
    // Check if there even is an arc
    if (crsIntoEndpoint !== lastCourse) {
      // Turn Dir
-      if (!leg.TurnDir || leg.TurnDir === "E") {
+      if (!leg.TurnDir || leg.TurnDir === 'E') {
        let prov = lastCourse - crsIntoEndpoint;
        prov = prov > 180 ? prov - 360 : prov <= -180 ? prov + 360 : prov;
-        leg.TurnDir = prov > 0 ? "L" : "R";
+        leg.TurnDir = prov > 0 ? 'L' : 'R';
      }

      // Generate arc
      let condition = false;
      do {
-        if (leg.TurnDir === "R") {
+        if (leg.TurnDir === 'R') {
          const delta = (crsIntoEndpoint - lastCourse).normaliseDegrees();
          lastCourse += delta < 1 ? delta : 1;
          lastCourse = lastCourse.normaliseDegrees();
@@ -56,9 +53,7 @@ export const TerminatorsTF = (
            latitude: line.at(-1)![1],
            longitude: line.at(-1)![0],
          },
-          (
-            (previousFix.speed ? previousFix.speed : Parser.AC_SPEED) / 3600
-          ).toMetre(),
+          ((previousFix.speed ? previousFix.speed : Parser.AC_SPEED) / 3600).toMetre(),
          lastCourse
        );

@@ -66,7 +61,7 @@ export const TerminatorsTF = (

        crsIntoEndpoint = geolib.getGreatCircleBearing(arcFix, targetFix);

-        if (leg.TurnDir === "R") {
+        if (leg.TurnDir === 'R') {
          condition = crsIntoEndpoint > trackIntoEndpoint;
        } else {
          condition = crsIntoEndpoint < trackIntoEndpoint;
@@ -1,7 +1,7 @@
-import * as geolib from "geolib";
-import Parser from "../parser.ts";
-import { computeSpeed } from "../utils/computeSpeed.ts";
-import { generatePerformanceArc } from "../pathGenerators/generatePerformanceArc.ts";
+import * as geolib from 'geolib';
+import Parser from '../parser';
+import { generateOverflyArc } from '../pathGenerators/generateOverflyArc';
+import { computeSpeed } from '../utils/computeSpeed';

 // NOTE: No wind adjustments to be made, no clue how *that* would draw
 export const TerminatorsVA = (
@@ -12,37 +12,16 @@ export const TerminatorsVA = (
  const speed = computeSpeed(leg, previousFix);
  const crsIntoEndpoint = leg.Course.toTrue(previousFix);

-  let line: LineSegment[] = [];
-
-  if (previousFix.isFlyOver) {
-    line = generatePerformanceArc(
-      crsIntoEndpoint,
-      lastCourse,
-      previousFix,
-      speed,
-      leg.TurnDir
-    );
-  } else {
-    line.push([previousFix.longitude, previousFix.latitude]);
-  }
-
-  const arcEnd = { latitude: line.at(-1)![1], longitude: line.at(-1)![0] };
-  if (line.length > 1) {
-    lastCourse = geolib.getGreatCircleBearing(
-      {
-        latitude: line.at(-2)![1],
-        longitude: line.at(-2)![0],
-      },
-      arcEnd
-    );
-  }
+  // Compute overfly
+  const [line, arcEnd, _lastCourse] = generateOverflyArc(crsIntoEndpoint, lastCourse, previousFix, speed, leg.TurnDir);
+  lastCourse = _lastCourse;

+  // Compute intercept of crs from arc end and expected altitude
  const targetFix: NavFix = {
    ...geolib.computeDestinationPoint(
      arcEnd,
      (
-        ((leg.Alt.parseAltitude() - (previousFix.altitude ?? 0)) /
-          Parser.AC_VS) *
+        ((leg.Alt.parseAltitude() - (previousFix.altitude ?? 0)) / Parser.AC_VS) *
        ((previousFix.speed ? previousFix.speed : Parser.AC_SPEED) / 60)
      ).toMetre(),
      crsIntoEndpoint
@@ -54,7 +33,6 @@ export const TerminatorsVA = (
    speedConstraint: leg.SpeedLimit,
    altitudeConstraint: leg.Alt,
  };
-
  line.push([targetFix.longitude, targetFix.latitude]);

  return [targetFix, line];
@@ -1,6 +1,6 @@
-import * as geolib from "geolib";
-import { computeSpeed } from "../utils/computeSpeed.ts";
-import { generatePerformanceArc } from "../pathGenerators/generatePerformanceArc.ts";
+import * as geolib from 'geolib';
+import { generateOverflyArc } from '../pathGenerators/generateOverflyArc';
+import { computeSpeed } from '../utils/computeSpeed';

 // NOTE: No wind adjustments to be made, no clue how *that* would draw
 // NOTE: Distance not adjusted for altitude in this demo
@@ -13,35 +13,14 @@ export const TerminatorsVD = (
    latitude: leg.NavLat,
    longitude: leg.NavLon,
  };
+  const crsIntoEndpoint = leg.Course.toTrue(previousFix);
  const speed = computeSpeed(leg, previousFix);

-  let line: LineSegment[] = [];
-
-  if (previousFix.isFlyOver) {
-    const crsIntoEndpoint = leg.Course.toTrue(previousFix);
-
-    line = generatePerformanceArc(
-      crsIntoEndpoint,
-      lastCourse,
-      previousFix,
-      speed,
-      leg.TurnDir
-    );
-  } else {
-    line.push([previousFix.longitude, previousFix.latitude]);
-  }
-
-  const arcEnd = { latitude: line.at(-1)![1], longitude: line.at(-1)![0] };
-  if (line.length > 1) {
-    lastCourse = geolib.getGreatCircleBearing(
-      {
-        latitude: line.at(-2)![1],
-        longitude: line.at(-2)![0],
-      },
-      arcEnd
-    );
-  }
+  // Compute overfly
+  const [line, arcEnd, _lastCourse] = generateOverflyArc(crsIntoEndpoint, lastCourse, previousFix, speed, leg.TurnDir);
+  lastCourse = _lastCourse;

+  // Compute distance to fly from arc end
  const crsToNavaid = geolib.getGreatCircleBearing(arcEnd, navaid);
  const distToNavaid = geolib.getDistance(arcEnd, navaid);
  let remainingDistance = leg.Distance.toMetre();
@@ -52,9 +31,10 @@ export const TerminatorsVD = (
  // Navaid in front of us
  else {
    // Navaid will not be passed before distance is hit
-    if (distToNavaid > remainingDistance)
-      remainingDistance = distToNavaid - remainingDistance;
+    if (distToNavaid > remainingDistance) remainingDistance = distToNavaid - remainingDistance;
  }
+
+  // Compute intercept of crs from arc end and distance
  const targetFix: NavFix = {
    ...geolib.computeDestinationPoint(arcEnd, remainingDistance, lastCourse),
    name: leg.Distance.toString(),
@@ -64,7 +44,6 @@ export const TerminatorsVD = (
    speedConstraint: leg.SpeedLimit,
    altitudeConstraint: leg.Alt,
  };
-
  line.push([targetFix.longitude, targetFix.latitude]);

  return [targetFix, line];
@@ -1,7 +1,7 @@
-import { handleTurnAtFix } from "../pathGenerators/handleTurnAtFix.ts";
-import { computeIntersection } from "../utils/computeIntersection.ts";
-import { computeSpeed } from "../utils/computeSpeed.ts";
-import { getCourseAndFixForIntercepts } from "../utils/getCourseAndFixForIntercepts.ts";
+import { handleTurnAtFix } from '../pathGenerators/handleTurnAtFix';
+import { computeIntersection } from '../utils/computeIntersection';
+import { computeSpeed } from '../utils/computeSpeed';
+import { getCourseAndFixForIntercepts } from '../utils/getCourseAndFixForIntercepts';

 // NOTE: No wind adjustments to be made, no clue how *that* would draw
 export const TerminatorsVI = (
@@ -15,12 +15,7 @@ export const TerminatorsVI = (

  // Compute INTC
  const interceptFix: NavFix = {
-    ...computeIntersection(
-      previousFix,
-      leg.Course.toTrue(nextFix),
-      nextFix,
-      crs
-    )!,
+    ...computeIntersection(previousFix, leg.Course.toTrue(nextFix), nextFix, crs)!,
    isFlyOver: leg.IsFlyOver,
    altitude: leg.Alt ? leg.Alt.parseAltitude() : previousFix.altitude,
    speed: speed,
@@ -48,10 +43,7 @@ export const TerminatorsVI = (
  if (interceptPoint2)
    return [
      { ...interceptFix, ...interceptPoint2 },
-      [
-        ...line.slice(0, -1),
-        [interceptPoint2.longitude, interceptPoint2.latitude],
-      ],
+      [...line.slice(0, -1), [interceptPoint2.longitude, interceptPoint2.latitude]],
    ];

  return [interceptFix, line];
@@ -1,6 +1,6 @@
-import * as geolib from "geolib";
-import { handleTurnAtFix } from "../pathGenerators/handleTurnAtFix.ts";
-import { computeSpeed } from "../utils/computeSpeed.ts";
+import * as geolib from 'geolib';
+import { handleTurnAtFix } from '../pathGenerators/handleTurnAtFix';
+import { computeSpeed } from '../utils/computeSpeed';

 // NOTE: No wind adjustments to be made, no clue how *that* would draw
 export const TerminatorsVM = (
@@ -10,11 +10,7 @@ export const TerminatorsVM = (
 ): [NavFix?, LineSegment[]?] => {
  const speed = computeSpeed(leg, previousFix);

-  const endpoint = geolib.computeDestinationPoint(
-    previousFix,
-    (10).toMetre(),
-    leg.Course.toTrue(previousFix)
-  );
+  const endpoint = geolib.computeDestinationPoint(previousFix, (10).toMetre(), leg.Course.toTrue(previousFix));

  const line = handleTurnAtFix(
    leg.Course.toTrue(previousFix),
@@ -1,7 +1,6 @@
-import * as geolib from "geolib";
-import { computeIntersection } from "../utils/computeIntersection.ts";
-import { computeSpeed } from "../utils/computeSpeed.ts";
-import { generatePerformanceArc } from "../pathGenerators/generatePerformanceArc.ts";
+import { generateOverflyArc } from '../pathGenerators/generateOverflyArc';
+import { computeIntersection } from '../utils/computeIntersection';
+import { computeSpeed } from '../utils/computeSpeed';

 // NOTE: No wind adjustments to be made, no clue how *that* would draw
 export const TerminatorsVR = (
@@ -17,31 +16,11 @@ export const TerminatorsVR = (
  const crsIntoEndpoint = leg.NavBear.toTrue(navaid);
  const speed = computeSpeed(leg, previousFix);

-  let line: LineSegment[] = [];
-
-  if (previousFix.isFlyOver) {
-    line = generatePerformanceArc(
-      crsFromEndpoint,
-      lastCourse,
-      previousFix,
-      speed,
-      leg.TurnDir
-    );
-  } else {
-    line.push([previousFix.longitude, previousFix.latitude]);
-  }
-
-  const arcEnd = { latitude: line.at(-1)![1], longitude: line.at(-1)![0] };
-  if (line.length > 1) {
-    lastCourse = geolib.getGreatCircleBearing(
-      {
-        latitude: line.at(-2)![1],
-        longitude: line.at(-2)![0],
-      },
-      arcEnd
-    );
-  }
+  // Compute overfly
+  const [line, arcEnd, _lastCourse] = generateOverflyArc(crsFromEndpoint, lastCourse, previousFix, speed, leg.TurnDir);
+  lastCourse = _lastCourse;

+  // Compute intercept of crs from arc end and radial
  const interceptFix: NavFix = {
    ...computeIntersection(arcEnd, crsFromEndpoint, navaid, crsIntoEndpoint)!,
    isFlyOver: leg.IsFlyOver,
@@ -5,12 +5,7 @@
 * @param brng2 bearing from Point 2
 * @returns Intersection point
 */
-export const computeIntersection = (
-  p1: NavFix,
-  brng1: number,
-  p2: NavFix,
-  brng2: number
-): NavFix | undefined => {
+export const computeIntersection = (p1: NavFix, brng1: number, p2: NavFix, brng2: number): NavFix | undefined => {
  if (isNaN(brng1)) throw new TypeError(`invalid brng1 ${brng1}`);
  if (isNaN(brng2)) throw new TypeError(`invalid brng2 ${brng2}`);

@@ -31,20 +26,13 @@ export const computeIntersection = (
  const δ12 =
    2 *
    Math.asin(
-      Math.sqrt(
-        Math.sin(Δφ / 2) * Math.sin(Δφ / 2) +
-          Math.cos(φ1) * Math.cos(φ2) * Math.sin(Δλ / 2) * Math.sin(Δλ / 2)
-      )
+      Math.sqrt(Math.sin(Δφ / 2) * Math.sin(Δφ / 2) + Math.cos(φ1) * Math.cos(φ2) * Math.sin(Δλ / 2) * Math.sin(Δλ / 2))
    );
  if (Math.abs(δ12) < Number.EPSILON) return p1; // coincident points

  // initial/final bearings between points
-  const cosθa =
-    (Math.sin(φ2) - Math.sin(φ1) * Math.cos(δ12)) /
-    (Math.sin(δ12) * Math.cos(φ1));
-  const cosθb =
-    (Math.sin(φ1) - Math.sin(φ2) * Math.cos(δ12)) /
-    (Math.sin(δ12) * Math.cos(φ2));
+  const cosθa = (Math.sin(φ2) - Math.sin(φ1) * Math.cos(δ12)) / (Math.sin(δ12) * Math.cos(φ1));
+  const cosθb = (Math.sin(φ1) - Math.sin(φ2) * Math.cos(δ12)) / (Math.sin(δ12) * Math.cos(φ2));
  const θa = Math.acos(Math.min(Math.max(cosθa, -1), 1)); // protect against rounding errors
  const θb = Math.acos(Math.min(Math.max(cosθb, -1), 1)); // protect against rounding errors

@@ -57,29 +45,15 @@ export const computeIntersection = (
  if (Math.sin(α1) == 0 && Math.sin(α2) == 0) return undefined; // infinite intersections
  if (Math.sin(α1) * Math.sin(α2) < 0) return undefined; // ambiguous intersection (antipodal/360°)

-  const cosα3 =
-    -Math.cos(α1) * Math.cos(α2) + Math.sin(α1) * Math.sin(α2) * Math.cos(δ12);
+  const cosα3 = -Math.cos(α1) * Math.cos(α2) + Math.sin(α1) * Math.sin(α2) * Math.cos(δ12);

-  const δ13 = Math.atan2(
-    Math.sin(δ12) * Math.sin(α1) * Math.sin(α2),
-    Math.cos(α2) + Math.cos(α1) * cosα3
-  );
+  const δ13 = Math.atan2(Math.sin(δ12) * Math.sin(α1) * Math.sin(α2), Math.cos(α2) + Math.cos(α1) * cosα3);

  const φ3 = Math.asin(
-    Math.min(
-      Math.max(
-        Math.sin(φ1) * Math.cos(δ13) +
-          Math.cos(φ1) * Math.sin(δ13) * Math.cos(θ13),
-        -1
-      ),
-      1
-    )
+    Math.min(Math.max(Math.sin(φ1) * Math.cos(δ13) + Math.cos(φ1) * Math.sin(δ13) * Math.cos(θ13), -1), 1)
  );

-  const Δλ13 = Math.atan2(
-    Math.sin(θ13) * Math.sin(δ13) * Math.cos(φ1),
-    Math.cos(δ13) - Math.sin(φ1) * Math.sin(φ3)
-  );
+  const Δλ13 = Math.atan2(Math.sin(θ13) * Math.sin(δ13) * Math.cos(φ1), Math.cos(δ13) - Math.sin(φ1) * Math.sin(φ3));
  const λ3 = λ1 + Δλ13;

  const lat = φ3.toDegrees();
@@ -89,7 +63,7 @@ export const computeIntersection = (
    ...p1,
    latitude: lat,
    longitude: lon,
-    name: "INTC",
+    name: 'INTC',
    isIntersection: true,
  };
 };
@@ -1,4 +1,4 @@
-import Parser from "../parser.ts";
+import Parser from '../parser';

 export const computeSpeed = (leg: TerminalEntry, previousFix: NavFix) => {
  if (leg.SpeedLimit) return leg.SpeedLimit;
@@ -1,4 +1,4 @@
-import { magvar } from "magvar";
+import { magvar } from 'magvar';

 Number.prototype.toRadians = function () {
  return ((this as number) * Math.PI) / 180;
@@ -1,26 +1,23 @@
-import * as geolib from "geolib";
+import * as geolib from 'geolib';

 /**
 * @param leg Leg to examine
 * @param origin Origin of current leg
 * @returns Adjusted course and fix
 */
-export const getCourseAndFixForIntercepts = (
-  leg: TerminalEntry,
-  origin: NavFix
-): [number, NavFix] => {
+export const getCourseAndFixForIntercepts = (leg: TerminalEntry, origin: NavFix): [number, NavFix] => {
  switch (leg.TrackCode) {
-    case "CF": {
+    case 'CF': {
      const _leg = leg as CFTerminalEntry;
      const fix = { latitude: _leg.WptLat, longitude: _leg.WptLon };
      return [_leg.Course.reciprocalCourse().toTrue(fix), fix];
    }
-    case "FM": {
+    case 'FM': {
      const _leg = leg as FMTerminalEntry;
      const fix = { latitude: _leg.WptLat, longitude: _leg.WptLon };
      return [_leg.Course.toTrue(fix), fix];
    }
-    case "TF": {
+    case 'TF': {
      const _leg = leg as FMTerminalEntry;
      return [
        geolib.getGreatCircleBearing(origin, {
@@ -30,11 +27,16 @@ export const getCourseAndFixForIntercepts = (
        { latitude: _leg.WptLat, longitude: _leg.WptLon },
      ];
    }
-    case "AF": {
+    case 'AF': {
      const _leg = leg as AFTerminalEntry;
      const fix = { latitude: _leg.WptLat, longitude: _leg.WptLon };
      return [_leg.Course.reciprocalCourse().toTrue(fix), fix];
    }
+    case 'DF': {
+      const _leg = leg as FMTerminalEntry;
+      const fix = { latitude: _leg.WptLat, longitude: _leg.WptLon };
+      return [-1, fix];
+    }
    default: {
      return [-1, origin];
    }
@@ -0,0 +1,19 @@
+import readline from 'readline';
+
+export const prompting = (message: string) => {
+  return new Promise<string | null>((resolve) => {
+    if (typeof prompt !== 'undefined') {
+      return resolve(prompt(message));
+    }
+
+    const rl = readline.createInterface({
+      input: process.stdin,
+      output: process.stdout,
+    });
+    rl.question(`${message}: `, (id) => {
+      rl.close();
+
+      resolve(id);
+    });
+  });
+};
@@ -0,0 +1 @@
+@import 'tailwindcss';
@@ -1,3 +1,3 @@
-declare module "geojson" {
+declare module 'geojson' {
  export const parse: (data: object, format: object) => object;
 }
@@ -1,21 +1,20 @@
-//eslint-disable-next-line @typescript-eslint/no-unused-vars
-import * as L from "leaflet";
+import 'leaflet';

-declare module "leaflet" {
+declare module 'leaflet' {
  export function shapeMarker(
    latlng: LatLngExpression,
    options?: PathOptions & {
      shape?:
-        | "diamond"
-        | "square"
-        | "triangle"
-        | "triangle-up"
-        | "triangle-down"
-        | "arrowhead"
-        | "arrowhead-up"
-        | "arrowhead-down"
-        | "circle"
-        | "x"
+        | 'diamond'
+        | 'square'
+        | 'triangle'
+        | 'triangle-up'
+        | 'triangle-down'
+        | 'arrowhead'
+        | 'arrowhead-up'
+        | 'arrowhead-down'
+        | 'circle'
+        | 'x'
        | string;
      radius?: number;
      rotation?: number;
@@ -1,3 +1,3 @@
-declare module "magvar" {
+declare module 'magvar' {
  export const magvar: (latitude: number, longitude: number) => number;
 }
@@ -2,16 +2,7 @@ export declare global {
  type AFTerminalEntry = Required<
    Pick<
      TerminalEntry,
-      | "WptID"
-      | "WptLat"
-      | "WptLon"
-      | "TurnDir"
-      | "NavID"
-      | "NavLat"
-      | "NavLon"
-      | "NavBear"
-      | "NavDist"
-      | "Course"
+      'WptID' | 'WptLat' | 'WptLon' | 'TurnDir' | 'NavID' | 'NavLat' | 'NavLon' | 'NavBear' | 'NavDist' | 'Course'
    >
  > &
    TerminalEntry;
@@ -1,4 +1,3 @@
 export declare global {
-  type CATerminalEntry = Required<Pick<TerminalEntry, "Course" | "Alt">> &
-    TerminalEntry;
+  type CATerminalEntry = Required<Pick<TerminalEntry, 'Course' | 'Alt'>> & TerminalEntry;
 }
@@ -1,6 +1,4 @@
 export declare global {
-  type CDTerminalEntry = Required<
-    Pick<TerminalEntry, "NavID" | "NavLat" | "NavLon" | "Course" | "Distance">
-  > &
+  type CDTerminalEntry = Required<Pick<TerminalEntry, 'NavID' | 'NavLat' | 'NavLon' | 'Course' | 'Distance'>> &
    TerminalEntry;
 }
@@ -2,16 +2,7 @@ export declare global {
  type CFTerminalEntry = Required<
    Pick<
      TerminalEntry,
-      | "WptID"
-      | "WptLat"
-      | "WptLon"
-      | "NavID"
-      | "NavLat"
-      | "NavLon"
-      | "NavBear"
-      | "NavDist"
-      | "Course"
-      | "Distance"
+      'WptID' | 'WptLat' | 'WptLon' | 'NavID' | 'NavLat' | 'NavLon' | 'NavBear' | 'NavDist' | 'Course' | 'Distance'
    >
  > &
    TerminalEntry;
@@ -1,4 +1,3 @@
 export declare global {
-  type CITerminalEntry = Required<Pick<TerminalEntry, "Course">> &
-    TerminalEntry;
+  type CITerminalEntry = Required<Pick<TerminalEntry, 'Course'>> & TerminalEntry;
 }
@@ -1,6 +1,4 @@
 export declare global {
-  type CRTerminalEntry = Required<
-    Pick<TerminalEntry, "NavID" | "NavLat" | "NavLon" | "NavBear" | "Course">
-  > &
+  type CRTerminalEntry = Required<Pick<TerminalEntry, 'NavID' | 'NavLat' | 'NavLon' | 'NavBear' | 'Course'>> &
    TerminalEntry;
 }
@@ -1,6 +1,3 @@
 export declare global {
-  type DFTerminalEntry = Required<
-    Pick<TerminalEntry, "WptID" | "WptLat" | "WptLon" | "IsFlyOver">
-  > &
-    TerminalEntry;
+  type DFTerminalEntry = Required<Pick<TerminalEntry, 'WptID' | 'WptLat' | 'WptLon' | 'IsFlyOver'>> & TerminalEntry;
 }
@@ -2,16 +2,7 @@ export declare global {
  type FATerminalEntry = Required<
    Pick<
      TerminalEntry,
-      | "WptID"
-      | "WptLat"
-      | "WptLon"
-      | "NavID"
-      | "NavLat"
-      | "NavLon"
-      | "NavBear"
-      | "NavDist"
-      | "Course"
-      | "Alt"
+      'WptID' | 'WptLat' | 'WptLon' | 'NavID' | 'NavLat' | 'NavLon' | 'NavBear' | 'NavDist' | 'Course' | 'Alt'
    >
  > &
    TerminalEntry;
@@ -2,17 +2,17 @@ export declare global {
  type FCTerminalEntry = Required<
    Pick<
      TerminalEntry,
-      | "WptID"
-      | "WptLat"
-      | "WptLon"
-      | "IsFlyOver"
-      | "NavID"
-      | "NavLat"
-      | "NavLon"
-      | "NavBear"
-      | "NavDist"
-      | "Course"
-      | "Distance"
+      | 'WptID'
+      | 'WptLat'
+      | 'WptLon'
+      | 'IsFlyOver'
+      | 'NavID'
+      | 'NavLat'
+      | 'NavLon'
+      | 'NavBear'
+      | 'NavDist'
+      | 'Course'
+      | 'Distance'
    >
  > &
    TerminalEntry;
@@ -2,16 +2,7 @@ export declare global {
  type FDTerminalEntry = Required<
    Pick<
      TerminalEntry,
-      | "WptID"
-      | "WptLat"
-      | "WptLon"
-      | "NavID"
-      | "NavLat"
-      | "NavLon"
-      | "NavBear"
-      | "NavDist"
-      | "Course"
-      | "Distance"
+      'WptID' | 'WptLat' | 'WptLon' | 'NavID' | 'NavLat' | 'NavLon' | 'NavBear' | 'NavDist' | 'Course' | 'Distance'
    >
  > &
    TerminalEntry;
@@ -2,15 +2,7 @@ export declare global {
  type FMTerminalEntry = Required<
    Pick<
      TerminalEntry,
-      | "WptID"
-      | "WptLat"
-      | "WptLon"
-      | "NavID"
-      | "NavLat"
-      | "NavLon"
-      | "NavBear"
-      | "NavDist"
-      | "Course"
+      'WptID' | 'WptLat' | 'WptLon' | 'NavID' | 'NavLat' | 'NavLon' | 'NavBear' | 'NavDist' | 'Course'
    >
  > &
    TerminalEntry;
@@ -1,6 +1,3 @@
 export declare global {
-  type IFTerminalEntry = Required<
-    Pick<TerminalEntry, "WptID" | "WptLat" | "WptLon">
-  > &
-    TerminalEntry;
+  type IFTerminalEntry = Required<Pick<TerminalEntry, 'WptID' | 'WptLat' | 'WptLon'>> & TerminalEntry;
 }
@@ -2,16 +2,16 @@ export declare global {
  type RFTerminalEntry = Required<
    Pick<
      TerminalEntry,
-      | "WptID"
-      | "WptLat"
-      | "WptLon"
-      | "TurnDir"
-      | "NavBear"
-      | "Course"
-      | "Distance"
-      | "CenterID"
-      | "CenterLat"
-      | "CenterLon"
+      | 'WptID'
+      | 'WptLat'
+      | 'WptLon'
+      | 'TurnDir'
+      | 'NavBear'
+      | 'Course'
+      | 'Distance'
+      | 'CenterID'
+      | 'CenterLat'
+      | 'CenterLon'
    >
  > &
    TerminalEntry;
@@ -1,6 +1,3 @@
 export declare global {
-  type TFTerminalEntry = Required<
-    Pick<TerminalEntry, "WptID" | "WptLat" | "WptLon" | "IsFlyOver">
-  > &
-    TerminalEntry;
+  type TFTerminalEntry = Required<Pick<TerminalEntry, 'WptID' | 'WptLat' | 'WptLon' | 'IsFlyOver'>> & TerminalEntry;
 }
@@ -1,4 +1,3 @@
 export declare global {
-  type VATerminalEntry = Required<Pick<TerminalEntry, "Course" | "Alt">> &
-    TerminalEntry;
+  type VATerminalEntry = Required<Pick<TerminalEntry, 'Course' | 'Alt'>> & TerminalEntry;
 }
@@ -1,6 +1,4 @@
 export declare global {
-  type VDTerminalEntry = Required<
-    Pick<TerminalEntry, "NavID" | "NavLat" | "NavLon" | "Course" | "Distance">
-  > &
+  type VDTerminalEntry = Required<Pick<TerminalEntry, 'NavID' | 'NavLat' | 'NavLon' | 'Course' | 'Distance'>> &
    TerminalEntry;
 }
@@ -1,4 +1,3 @@
 export declare global {
-  type VITerminalEntry = Required<Pick<TerminalEntry, "Course">> &
-    TerminalEntry;
+  type VITerminalEntry = Required<Pick<TerminalEntry, 'Course'>> & TerminalEntry;
 }
@@ -1,4 +1,3 @@
 export declare global {
-  type VMTerminalEntry = Required<Pick<TerminalEntry, "Course">> &
-    TerminalEntry;
+  type VMTerminalEntry = Required<Pick<TerminalEntry, 'Course'>> & TerminalEntry;
 }
@@ -1,6 +1,4 @@
 export declare global {
-  type VRTerminalEntry = Required<
-    Pick<TerminalEntry, "NavID" | "NavLat" | "NavLon" | "NavBear" | "Course">
-  > &
+  type VRTerminalEntry = Required<Pick<TerminalEntry, 'NavID' | 'NavLat' | 'NavLon' | 'NavBear' | 'Course'>> &
    TerminalEntry;
 }
@@ -6,6 +6,7 @@ export declare global {

  type Runway = {
    ID: number;
+    AirportID: number;
    Latitude: number;
    Longitude: number;
    Elevation: number;
@@ -14,31 +15,31 @@ export declare global {
  };

  type TrackCode =
-    | "AF"
-    | "CA"
-    | "CD"
-    | "CF"
-    | "CI"
-    | "CR"
-    | "DF"
-    | "FA"
-    | "FC"
-    | "FD"
-    | "FM"
-    | "HA"
-    | "HF"
-    | "HM"
-    | "IF"
-    | "PI"
-    | "RF"
-    | "TF"
-    | "VA"
-    | "VD"
-    | "VI"
-    | "VM"
-    | "VR";
+    | 'AF'
+    | 'CA'
+    | 'CD'
+    | 'CF'
+    | 'CI'
+    | 'CR'
+    | 'DF'
+    | 'FA'
+    | 'FC'
+    | 'FD'
+    | 'FM'
+    | 'HA'
+    | 'HF'
+    | 'HM'
+    | 'IF'
+    | 'PI'
+    | 'RF'
+    | 'TF'
+    | 'VA'
+    | 'VD'
+    | 'VI'
+    | 'VM'
+    | 'VR';

-  type TurnDirection = "E" | "L" | "R";
+  type TurnDirection = 'E' | 'L' | 'R';

  type TerminalEntry = {
    ID: number;
@@ -70,9 +71,10 @@ export declare global {

  type Terminal = {
    ID: number;
-    FullName: string;
+    AirportID: number;
    ICAO: string;
-    RwyID: number;
+    FullName: string;
+    RwyID?: number;
  };

  type NavFix = {
@@ -82,7 +84,7 @@ export declare global {
    speed?: number;
    name?: string;
    isFlyOver?: boolean;
-    "marker-color"?: string;
+    'marker-color'?: string;
    altitudeConstraint?: string;
    speedConstraint?: number;
    // For map
@@ -90,4 +92,11 @@ export declare global {
  };

  type LineSegment = [number, number];
+
+  type Airport = {
+    ID: number;
+    ICAO: string;
+    Latitude: number;
+    Longitude: number;
+  };
 }
@@ -1 +1,14 @@
 /// <reference types="vite/client" />
+
+interface ViteTypeOptions {
+  strictImportMetaEnv: unknown;
+}
+
+interface ImportMetaEnv {
+  readonly VITE_NG_CLIENT_ID: string;
+  readonly VITE_NG_CLIENT_SECRET: string;
+}
+
+interface ImportMeta {
+  readonly env: ImportMetaEnv;
+}
@@ -15,6 +15,7 @@
    "moduleDetection": "force",
    "noEmit": true,
    "jsx": "react-jsx",
+    "sourceMap": true,

    /* Linting */
    "strict": true,
@@ -1,7 +1,4 @@
 {
  "files": [],
-  "references": [
-    { "path": "./tsconfig.app.json" },
-    { "path": "./tsconfig.node.json" }
-  ]
+  "references": [{ "path": "./tsconfig.app.json" }, { "path": "./tsconfig.node.json" }]
 }
@@ -13,6 +13,7 @@
    "verbatimModuleSyntax": true,
    "moduleDetection": "force",
    "noEmit": true,
+    "sourceMap": true,

    /* Linting */
    "strict": true,
@@ -1,7 +1,11 @@
-import { defineConfig } from 'vite'
-import react from '@vitejs/plugin-react-swc'
+import tailwindcss from '@tailwindcss/vite';
+import react from '@vitejs/plugin-react-swc';
+import { defineConfig } from 'vite';

 // https://vite.dev/config/
 export default defineConfig({
-  plugins: [react()],
-})
+  plugins: [tailwindcss(), react()],
+  build: {
+    sourcemap: true,
+  },
+});
Author	SHA1	Message	Date
Kilian	f593cbd29a	Initial NG	2025-07-16 01:34:34 +02:00
Kilian	e4ed55cac9	Tailwind	2025-07-15 12:19:41 +02:00
Kilian	13bea68195	Wrap prompt	2025-07-15 11:35:03 +02:00
Kilian	50077746f0	Prettier Refactor overfly fix	2025-07-15 11:02:25 +02:00
				`@@ -0,0 +1 @@`
				[{"ID":1,"Name":"KATMAI LODGE","ICAO":"00AN","PrimaryID":null,"Latitude":59.09347222,"Longitude":-156.45583333,"Elevation":80,"TransAlt":18000},{"ID":2,"Name":"ARLAND","ICAO":"00AR","PrimaryID":null,"Latitude":38.96965,"Longitude":-97.60155556,"Elevation":1352,"TransAlt":null},{"ID":3,"Name":"WILLIAMS AG","ICAO":"00CL","PrimaryID":null,"Latitude":39.42718889,"Longitude":-121.76342778,"Elevation":87,"TransAlt":null},{"ID":4,"Name":"GOLTL","ICAO":"00IG","PrimaryID":null,"Latitude":39.72402778,"Longitude":-101.39599444,"Elevation":3359,"TransAlt":null},{"ID":5,"Name":"THOMPSON FARMS","ICAO":"00TN","PrimaryID":null,"Latitude":36.12045,"Longitude":-86.35953333,"Elevation":675,"TransAlt":null},{"ID":6,"Name":"NOWHERE","ICAO":"00TT","PrimaryID":null,"Latitude":34.51660556,"Longitude":-99.93694167,"Elevation":1752,"TransAlt":null},{"ID":7,"Name":"DELVA","ICAO":"00TX","PrimaryID":null,"Latitude":32.54445278,"Longitude":-95.67313056,"Elevation":545,"TransAlt":18000},{"ID":8,"Name":"WEESKI RANCH","ICAO":"00XA","PrimaryID":null,"Latitude":30.22403889,"Longitude":-96.01415278,"Elevation":271,"TransAlt":null},{"ID":9,"Name":"MC HONE HEIGHTS","ICAO":"01AN","PrimaryID":null,"Latitude":61.64902778,"Longitude":-149.33902778,"Elevation":610,"TransAlt":null},{"ID":10,"Name":"SWANSBORO COUNTRY","ICAO":"01CL","PrimaryID":null,"Latitude":38.79990278,"Longitude":-120.734375,"Elevation":2594,"TransAlt":18000},{"ID":11,"Name":"COLEMAN HOMESTEAD","ICAO":"01CN","PrimaryID":null,"Latitude":62.10698333,"Longitude":-150.10929722,"Elevation":282,"TransAlt":null},{"ID":12,"Name":"THE FARM","ICAO":"01GE","PrimaryID":null,"Latitude":32.67515,"Longitude":-82.77099444,"Elevation":369,"TransAlt":null},{"ID":13,"Name":"LAVA HOT SPRINGS","ICAO":"01ID","PrimaryID":null,"Latitude":42.60825,"Longitude":-112.03246111,"Elevation":5268,"TransAlt":18000},{"ID":14,"Name":"GRANVILLE","ICAO":"01NK","PrimaryID":null,"Latitude":43.42294444,"Longitude":-73.268025,"Elevation":421,"TransAlt":18000},{"ID":15,"Name":"SPRING CREEK RANCH EAST","ICAO":"01OL","PrimaryID":null,"Latitude":34.37256944,"Longitude":-96.71603611,"Elevation":1060,"TransAlt":null},{"ID":16,"Name":"BEULAH FLD","ICAO":"01TX","PrimaryID":null,"Latitude":33.17058056,"Longitude":-98.62222222,"Elevation":1120,"TransAlt":null},{"ID":17,"Name":"BASS","ICAO":"02AL","PrimaryID":null,"Latitude":30.37146389,"Longitude":-87.76444444,"Elevation":61,"TransAlt":18000},{"ID":18,"Name":"EMERALD RIDGE","ICAO":"02AN","PrimaryID":null,"Latitude":59.70422222,"Longitude":-151.29586944,"Elevation":221,"TransAlt":null},{"ID":19,"Name":"OSBORN","ICAO":"02FA","PrimaryID":null,"Latitude":28.52666667,"Longitude":-81.8748,"Elevation":121,"TransAlt":18000},{"ID":20,"Name":"TRIPLE R RANCH","ICAO":"02FD","PrimaryID":null,"Latitude":30.95234722,"Longitude":-86.63541667,"Elevation":209,"TransAlt":null},{"ID":21,"Name":"FAIRPLAINS AIRPARK","ICAO":"02MI","PrimaryID":null,"Latitude":43.15700278,"Longitude":-85.14892778,"Elevation":850,"TransAlt":null},{"ID":22,"Name":"GREGORY","ICAO":"02MN","PrimaryID":null,"Latitude":45.62973611,"Longitude":-93.17497222,"Elevation":950,"TransAlt":null},{"ID":23,"Name":"TROY","ICAO":"02MO","PrimaryID":null,"Latitude":39.04626111,"Longitude":-91.02821944,"Elevation":630,"TransAlt":18000},{"ID":24,"Name":"FFR ANIMAS LANDING STRIP","ICAO":"02NM","PrimaryID":null,"Latitude":32.09071111,"Longitude":-108.87073611,"Elevation":4240,"TransAlt":null},{"ID":25,"Name":"CAWLEYS SOUTH PRAIRIE","ICAO":"02WA","PrimaryID":null,"Latitude":47.152325,"Longitude":-122.09400278,"Elevation":690,"TransAlt":18000},{"ID":26,"Name":"BLUE WATER","ICAO":"03CO","PrimaryID":null,"Latitude":38.09791944,"Longitude":-106.08975556,"Elevation":7710,"TransAlt":null},{"ID":27,"Name":"GREENS FARM FLD","ICAO":"03FL","PrimaryID":null,"Latitude":26.70547778,"Longitude":-82.05236944,"Elevation":15,"TransAlt":null},{"ID":28,"Name":"FLATLANDER","ICAO":"03IA","PrimaryID":null,"Latitude":41.14141111,"Longitude":-95.19438056,"Elevation":1081,"TransAlt":null},{"ID":29,"Name":"DORTON","ICAO":"03MO","PrimaryID":null,"Latitude":39.28883056,"Longitude":-93.99242222,"Elevation":930,"TransAlt":null},{"ID":30,"Name":"BLUEBIRD","ICAO":"03OL","PrimaryID":null,"Latitude":35.01233333,"Longitude":-97.70273611,"Elevation":1232,"TransAlt":null},{"ID":31,"Name":"BRAZOS POLO","ICAO":"03TT","PrimaryID":null,"Latitude":29.63211667,"Longitude":-95.93248056,"Elevation":117,"TransAlt":null},{"ID":32,"Name":"AEROSTONE AIRFIELD","ICAO":"03WN","PrimaryID":null,"Latitude":45.87545556,"Longitude":-120.672325,"Elevation":2342,"TransAlt":null},{"ID":33,"Name":"NORTH 40","ICAO":"04AN","PrimaryID":null,"Latitude":61.73751111,"Longitude":-148.700725,"Elevation":943,"TransAlt":null},{"ID":34,"Name":"WHITE HILLS","ICAO":"04AZ","PrimaryID":null,"Latitude":35.72177778,"Longitude":-114.45053889,"Elevation":2470,"TransAlt":null},{"ID":35,"Name":"GRAY BUTTE","ICAO":"04CA","PrimaryID":null,"Latitude":34.56664444,"Longitude":-117.67077222,"Elevation":3039,"TransAlt":18000},{"ID":36Line truncated
				`@@ -0,0 +1 @@`
				Copy over contents of `Data/Primary` retaining the structure.