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frontend/node_modules/@turf/rhumb-destination/LICENSE

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+The MIT License (MIT)
+
+Copyright (c) 2017 TurfJS
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

frontend/node_modules/@turf/rhumb-destination/README.md

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+# @turf/rhumb-destination
+
+<!-- Generated by documentation.js. Update this documentation by updating the source code. -->
+
+## rhumbDestination
+
+Returns the destination [Point][1] having travelled the given distance along a Rhumb line from the
+origin Point with the (varant) given bearing.
+
+**Parameters**
+
+-   `origin` **[Coord][2]** starting point
+-   `distance` **[number][3]** distance from the starting point
+-   `bearing` **[number][3]** varant bearing angle ranging from -180 to 180 degrees from north
+-   `options` **[Object][4]** Optional parameters (optional, default `{}`)
+    -   `options.units` **[string][5]** can be degrees, radians, miles, or kilometers (optional, default `'kilometers'`)
+    -   `options.properties` **[Object][4]** translate properties to destination point (optional, default `{}`)
+
+**Examples**
+
+```javascript
+var pt = turf.point([-75.343, 39.984], {"marker-color": "F00"});
+var distance = 50;
+var bearing = 90;
+var options = {units: 'miles'};
+
+var destination = turf.rhumbDestination(pt, distance, bearing, options);
+
+//addToMap
+var addToMap = [pt, destination]
+destination.properties['marker-color'] = '#00F';
+```
+
+Returns **[Feature][6]&lt;[Point][7]>** Destination point.
+
+[1]: https://tools.ietf.org/html/rfc7946#section-3.1.2
+
+[2]: https://tools.ietf.org/html/rfc7946#section-3.1.1
+
+[3]: https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Number
+
+[4]: https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object
+
+[5]: https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String
+
+[6]: https://tools.ietf.org/html/rfc7946#section-3.2
+
+[7]: https://tools.ietf.org/html/rfc7946#section-3.1.2
+
+<!-- This file is automatically generated. Please don't edit it directly:
+if you find an error, edit the source file (likely index.js), and re-run
+./scripts/generate-readmes in the turf project. -->
+
+---
+
+This module is part of the [Turfjs project](http://turfjs.org/), an open source
+module collection dedicated to geographic algorithms. It is maintained in the
+[Turfjs/turf](https://github.com/Turfjs/turf) repository, where you can create
+PRs and issues.
+
+### Installation
+
+Install this module individually:
+
+```sh
+$ npm install @turf/rhumb-destination
+```
+
+Or install the Turf module that includes it as a function:
+
+```sh
+$ npm install @turf/turf
+```

frontend/node_modules/@turf/rhumb-destination/dist/es/index.js

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+// https://en.wikipedia.org/wiki/Rhumb_line
+import { convertLength, degreesToRadians, earthRadius, point, } from "@turf/helpers";
+import { getCoord } from "@turf/invariant";
+/**
+ * Returns the destination {@link Point} having travelled the given distance along a Rhumb line from the
+ * origin Point with the (varant) given bearing.
+ *
+ * @name rhumbDestination
+ * @param {Coord} origin starting point
+ * @param {number} distance distance from the starting point
+ * @param {number} bearing varant bearing angle ranging from -180 to 180 degrees from north
+ * @param {Object} [options={}] Optional parameters
+ * @param {string} [options.units='kilometers'] can be degrees, radians, miles, or kilometers
+ * @param {Object} [options.properties={}] translate properties to destination point
+ * @returns {Feature<Point>} Destination point.
+ * @example
+ * var pt = turf.point([-75.343, 39.984], {"marker-color": "F00"});
+ * var distance = 50;
+ * var bearing = 90;
+ * var options = {units: 'miles'};
+ *
+ * var destination = turf.rhumbDestination(pt, distance, bearing, options);
+ *
+ * //addToMap
+ * var addToMap = [pt, destination]
+ * destination.properties['marker-color'] = '#00F';
+ */
+function rhumbDestination(origin, distance, bearing, options) {
+    if (options === void 0) { options = {}; }
+    var wasNegativeDistance = distance < 0;
+    var distanceInMeters = convertLength(Math.abs(distance), options.units, "meters");
+    if (wasNegativeDistance)
+        distanceInMeters = -Math.abs(distanceInMeters);
+    var coords = getCoord(origin);
+    var destination = calculateRhumbDestination(coords, distanceInMeters, bearing);
+    // compensate the crossing of the 180th meridian (https://macwright.org/2016/09/26/the-180th-meridian.html)
+    // solution from https://github.com/mapbox/mapbox-gl-js/issues/3250#issuecomment-294887678
+    destination[0] +=
+        destination[0] - coords[0] > 180
+            ? -360
+            : coords[0] - destination[0] > 180
+                ? 360
+                : 0;
+    return point(destination, options.properties);
+}
+/**
+ * Returns the destination point having travelled along a rhumb line from origin point the given
+ * distance on the  given bearing.
+ * Adapted from Geodesy: http://www.movable-type.co.uk/scripts/latlong.html#rhumblines
+ *
+ * @private
+ * @param   {Array<number>} origin - point
+ * @param   {number} distance - Distance travelled, in same units as earth radius (default: metres).
+ * @param   {number} bearing - Bearing in degrees from north.
+ * @param   {number} [radius=6371e3] - (Mean) radius of earth (defaults to radius in metres).
+ * @returns {Array<number>} Destination point.
+ */
+function calculateRhumbDestination(origin, distance, bearing, radius) {
+    // φ => phi
+    // λ => lambda
+    // ψ => psi
+    // Δ => Delta
+    // δ => delta
+    // θ => theta
+    radius = radius === undefined ? earthRadius : Number(radius);
+    var delta = distance / radius; // angular distance in radians
+    var lambda1 = (origin[0] * Math.PI) / 180; // to radians, but without normalize to 𝜋
+    var phi1 = degreesToRadians(origin[1]);
+    var theta = degreesToRadians(bearing);
+    var DeltaPhi = delta * Math.cos(theta);
+    var phi2 = phi1 + DeltaPhi;
+    // check for some daft bugger going past the pole, normalise latitude if so
+    if (Math.abs(phi2) > Math.PI / 2) {
+        phi2 = phi2 > 0 ? Math.PI - phi2 : -Math.PI - phi2;
+    }
+    var DeltaPsi = Math.log(Math.tan(phi2 / 2 + Math.PI / 4) / Math.tan(phi1 / 2 + Math.PI / 4));
+    // E-W course becomes ill-conditioned with 0/0
+    var q = Math.abs(DeltaPsi) > 10e-12 ? DeltaPhi / DeltaPsi : Math.cos(phi1);
+    var DeltaLambda = (delta * Math.sin(theta)) / q;
+    var lambda2 = lambda1 + DeltaLambda;
+    return [
+        (((lambda2 * 180) / Math.PI + 540) % 360) - 180,
+        (phi2 * 180) / Math.PI,
+    ]; // normalise to −180..+180°
+}
+export default rhumbDestination;

frontend/node_modules/@turf/rhumb-destination/dist/es/package.json

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+{"type":"module"}

frontend/node_modules/@turf/rhumb-destination/dist/js/index.d.ts

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+import { Coord, Feature, Point, Properties, Units } from "@turf/helpers";
+/**
+ * Returns the destination {@link Point} having travelled the given distance along a Rhumb line from the
+ * origin Point with the (varant) given bearing.
+ *
+ * @name rhumbDestination
+ * @param {Coord} origin starting point
+ * @param {number} distance distance from the starting point
+ * @param {number} bearing varant bearing angle ranging from -180 to 180 degrees from north
+ * @param {Object} [options={}] Optional parameters
+ * @param {string} [options.units='kilometers'] can be degrees, radians, miles, or kilometers
+ * @param {Object} [options.properties={}] translate properties to destination point
+ * @returns {Feature<Point>} Destination point.
+ * @example
+ * var pt = turf.point([-75.343, 39.984], {"marker-color": "F00"});
+ * var distance = 50;
+ * var bearing = 90;
+ * var options = {units: 'miles'};
+ *
+ * var destination = turf.rhumbDestination(pt, distance, bearing, options);
+ *
+ * //addToMap
+ * var addToMap = [pt, destination]
+ * destination.properties['marker-color'] = '#00F';
+ */
+declare function rhumbDestination<P = Properties>(origin: Coord, distance: number, bearing: number, options?: {
+    units?: Units;
+    properties?: P;
+}): Feature<Point, P>;
+export default rhumbDestination;

frontend/node_modules/@turf/rhumb-destination/dist/js/index.js

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+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+// https://en.wikipedia.org/wiki/Rhumb_line
+var helpers_1 = require("@turf/helpers");
+var invariant_1 = require("@turf/invariant");
+/**
+ * Returns the destination {@link Point} having travelled the given distance along a Rhumb line from the
+ * origin Point with the (varant) given bearing.
+ *
+ * @name rhumbDestination
+ * @param {Coord} origin starting point
+ * @param {number} distance distance from the starting point
+ * @param {number} bearing varant bearing angle ranging from -180 to 180 degrees from north
+ * @param {Object} [options={}] Optional parameters
+ * @param {string} [options.units='kilometers'] can be degrees, radians, miles, or kilometers
+ * @param {Object} [options.properties={}] translate properties to destination point
+ * @returns {Feature<Point>} Destination point.
+ * @example
+ * var pt = turf.point([-75.343, 39.984], {"marker-color": "F00"});
+ * var distance = 50;
+ * var bearing = 90;
+ * var options = {units: 'miles'};
+ *
+ * var destination = turf.rhumbDestination(pt, distance, bearing, options);
+ *
+ * //addToMap
+ * var addToMap = [pt, destination]
+ * destination.properties['marker-color'] = '#00F';
+ */
+function rhumbDestination(origin, distance, bearing, options) {
+    if (options === void 0) { options = {}; }
+    var wasNegativeDistance = distance < 0;
+    var distanceInMeters = helpers_1.convertLength(Math.abs(distance), options.units, "meters");
+    if (wasNegativeDistance)
+        distanceInMeters = -Math.abs(distanceInMeters);
+    var coords = invariant_1.getCoord(origin);
+    var destination = calculateRhumbDestination(coords, distanceInMeters, bearing);
+    // compensate the crossing of the 180th meridian (https://macwright.org/2016/09/26/the-180th-meridian.html)
+    // solution from https://github.com/mapbox/mapbox-gl-js/issues/3250#issuecomment-294887678
+    destination[0] +=
+        destination[0] - coords[0] > 180
+            ? -360
+            : coords[0] - destination[0] > 180
+                ? 360
+                : 0;
+    return helpers_1.point(destination, options.properties);
+}
+/**
+ * Returns the destination point having travelled along a rhumb line from origin point the given
+ * distance on the  given bearing.
+ * Adapted from Geodesy: http://www.movable-type.co.uk/scripts/latlong.html#rhumblines
+ *
+ * @private
+ * @param   {Array<number>} origin - point
+ * @param   {number} distance - Distance travelled, in same units as earth radius (default: metres).
+ * @param   {number} bearing - Bearing in degrees from north.
+ * @param   {number} [radius=6371e3] - (Mean) radius of earth (defaults to radius in metres).
+ * @returns {Array<number>} Destination point.
+ */
+function calculateRhumbDestination(origin, distance, bearing, radius) {
+    // φ => phi
+    // λ => lambda
+    // ψ => psi
+    // Δ => Delta
+    // δ => delta
+    // θ => theta
+    radius = radius === undefined ? helpers_1.earthRadius : Number(radius);
+    var delta = distance / radius; // angular distance in radians
+    var lambda1 = (origin[0] * Math.PI) / 180; // to radians, but without normalize to 𝜋
+    var phi1 = helpers_1.degreesToRadians(origin[1]);
+    var theta = helpers_1.degreesToRadians(bearing);
+    var DeltaPhi = delta * Math.cos(theta);
+    var phi2 = phi1 + DeltaPhi;
+    // check for some daft bugger going past the pole, normalise latitude if so
+    if (Math.abs(phi2) > Math.PI / 2) {
+        phi2 = phi2 > 0 ? Math.PI - phi2 : -Math.PI - phi2;
+    }
+    var DeltaPsi = Math.log(Math.tan(phi2 / 2 + Math.PI / 4) / Math.tan(phi1 / 2 + Math.PI / 4));
+    // E-W course becomes ill-conditioned with 0/0
+    var q = Math.abs(DeltaPsi) > 10e-12 ? DeltaPhi / DeltaPsi : Math.cos(phi1);
+    var DeltaLambda = (delta * Math.sin(theta)) / q;
+    var lambda2 = lambda1 + DeltaLambda;
+    return [
+        (((lambda2 * 180) / Math.PI + 540) % 360) - 180,
+        (phi2 * 180) / Math.PI,
+    ]; // normalise to −180..+180°
+}
+exports.default = rhumbDestination;

frontend/node_modules/@turf/rhumb-destination/package.json

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+{
+  "name": "@turf/rhumb-destination",
+  "version": "6.5.0",
+  "description": "turf rhumb-destination module",
+  "author": "Turf Authors",
+  "contributors": [
+    "Chris Veness <@chrisveness>",
+    "Stefano Borghi <@stebogit>",
+    "Denis Carriere <@DenisCarriere>"
+  ],
+  "license": "MIT",
+  "bugs": {
+    "url": "https://github.com/Turfjs/turf/issues"
+  },
+  "homepage": "https://github.com/Turfjs/turf",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/Turfjs/turf.git"
+  },
+  "funding": "https://opencollective.com/turf",
+  "publishConfig": {
+    "access": "public"
+  },
+  "keywords": [
+    "turf",
+    "distance",
+    "destination",
+    "bearing",
+    "loxodrome",
+    "rhumb",
+    "rhumb line",
+    "miles",
+    "km"
+  ],
+  "main": "dist/js/index.js",
+  "module": "dist/es/index.js",
+  "exports": {
+    "./package.json": "./package.json",
+    ".": {
+      "import": "./dist/es/index.js",
+      "require": "./dist/js/index.js"
+    }
+  },
+  "types": "dist/js/index.d.ts",
+  "sideEffects": false,
+  "files": [
+    "dist"
+  ],
+  "scripts": {
+    "bench": "ts-node bench.js",
+    "build": "npm-run-all build:*",
+    "build:es": "tsc --outDir dist/es --module esnext --declaration false && echo '{\"type\":\"module\"}' > dist/es/package.json",
+    "build:js": "tsc",
+    "docs": "node ../../scripts/generate-readmes",
+    "test": "npm-run-all test:*",
+    "test:tape": "ts-node -r esm test.js"
+  },
+  "devDependencies": {
+    "@turf/truncate": "^6.5.0",
+    "@types/tape": "*",
+    "benchmark": "*",
+    "load-json-file": "*",
+    "npm-run-all": "*",
+    "tape": "*",
+    "ts-node": "*",
+    "tslint": "*",
+    "typescript": "*",
+    "write-json-file": "*"
+  },
+  "dependencies": {
+    "@turf/helpers": "^6.5.0",
+    "@turf/invariant": "^6.5.0"
+  },
+  "gitHead": "5375941072b90d489389db22b43bfe809d5e451e"
+}