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frontend/node_modules/@turf/line-slice/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/line-slice/README.md

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+# @turf/line-slice
+
+<!-- Generated by documentation.js. Update this documentation by updating the source code. -->
+
+## lineSlice
+
+Takes a [line][1], a start [Point][2], and a stop point
+and returns a subsection of the line in-between those points.
+The start & stop points don't need to fall exactly on the line.
+
+This can be useful for extracting only the part of a route between waypoints.
+
+**Parameters**
+
+-   `startPt` **[Coord][3]** starting point
+-   `stopPt` **[Coord][3]** stopping point
+-   `line` **([Feature][4]&lt;[LineString][5]> | [LineString][5])** line to slice
+
+**Examples**
+
+```javascript
+var line = turf.lineString([
+    [-77.031669, 38.878605],
+    [-77.029609, 38.881946],
+    [-77.020339, 38.884084],
+    [-77.025661, 38.885821],
+    [-77.021884, 38.889563],
+    [-77.019824, 38.892368]
+]);
+var start = turf.point([-77.029609, 38.881946]);
+var stop = turf.point([-77.021884, 38.889563]);
+
+var sliced = turf.lineSlice(start, stop, line);
+
+//addToMap
+var addToMap = [start, stop, line]
+```
+
+Returns **[Feature][4]&lt;[LineString][5]>** sliced line
+
+[1]: https://tools.ietf.org/html/rfc7946#section-3.1.4
+
+[2]: https://tools.ietf.org/html/rfc7946#section-3.1.2
+
+[3]: https://tools.ietf.org/html/rfc7946#section-3.1.1
+
+[4]: https://tools.ietf.org/html/rfc7946#section-3.2
+
+[5]: https://tools.ietf.org/html/rfc7946#section-3.1.4
+
+<!-- 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/line-slice
+```
+
+Or install the Turf module that includes it as a function:
+
+```sh
+$ npm install @turf/turf
+```

frontend/node_modules/@turf/line-slice/dist/es/index.js

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+import { getCoords, getType } from '@turf/invariant';
+import { lineString } from '@turf/helpers';
+import nearestPointOnLine from '@turf/nearest-point-on-line';
+
+/**
+ * Takes a {@link LineString|line}, a start {@link Point}, and a stop point
+ * and returns a subsection of the line in-between those points.
+ * The start & stop points don't need to fall exactly on the line.
+ *
+ * This can be useful for extracting only the part of a route between waypoints.
+ *
+ * @name lineSlice
+ * @param {Coord} startPt starting point
+ * @param {Coord} stopPt stopping point
+ * @param {Feature<LineString>|LineString} line line to slice
+ * @returns {Feature<LineString>} sliced line
+ * @example
+ * var line = turf.lineString([
+ *     [-77.031669, 38.878605],
+ *     [-77.029609, 38.881946],
+ *     [-77.020339, 38.884084],
+ *     [-77.025661, 38.885821],
+ *     [-77.021884, 38.889563],
+ *     [-77.019824, 38.892368]
+ * ]);
+ * var start = turf.point([-77.029609, 38.881946]);
+ * var stop = turf.point([-77.021884, 38.889563]);
+ *
+ * var sliced = turf.lineSlice(start, stop, line);
+ *
+ * //addToMap
+ * var addToMap = [start, stop, line]
+ */
+function lineSlice(startPt, stopPt, line) {
+  // Validation
+  var coords = getCoords(line);
+  if (getType(line) !== "LineString")
+    throw new Error("line must be a LineString");
+
+  var startVertex = nearestPointOnLine(line, startPt);
+  var stopVertex = nearestPointOnLine(line, stopPt);
+  var ends;
+  if (startVertex.properties.index <= stopVertex.properties.index) {
+    ends = [startVertex, stopVertex];
+  } else {
+    ends = [stopVertex, startVertex];
+  }
+  var clipCoords = [ends[0].geometry.coordinates];
+  for (
+    var i = ends[0].properties.index + 1;
+    i < ends[1].properties.index + 1;
+    i++
+  ) {
+    clipCoords.push(coords[i]);
+  }
+  clipCoords.push(ends[1].geometry.coordinates);
+  return lineString(clipCoords, line.properties);
+}
+
+export default lineSlice;

frontend/node_modules/@turf/line-slice/dist/es/package.json

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+{"type":"module"}

frontend/node_modules/@turf/line-slice/dist/js/index.js

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+'use strict';
+
+var invariant = require('@turf/invariant');
+var helpers = require('@turf/helpers');
+var nearestPointOnLine = require('@turf/nearest-point-on-line');
+
+function _interopDefaultLegacy (e) { return e && typeof e === 'object' && 'default' in e ? e : { 'default': e }; }
+
+var nearestPointOnLine__default = /*#__PURE__*/_interopDefaultLegacy(nearestPointOnLine);
+
+/**
+ * Takes a {@link LineString|line}, a start {@link Point}, and a stop point
+ * and returns a subsection of the line in-between those points.
+ * The start & stop points don't need to fall exactly on the line.
+ *
+ * This can be useful for extracting only the part of a route between waypoints.
+ *
+ * @name lineSlice
+ * @param {Coord} startPt starting point
+ * @param {Coord} stopPt stopping point
+ * @param {Feature<LineString>|LineString} line line to slice
+ * @returns {Feature<LineString>} sliced line
+ * @example
+ * var line = turf.lineString([
+ *     [-77.031669, 38.878605],
+ *     [-77.029609, 38.881946],
+ *     [-77.020339, 38.884084],
+ *     [-77.025661, 38.885821],
+ *     [-77.021884, 38.889563],
+ *     [-77.019824, 38.892368]
+ * ]);
+ * var start = turf.point([-77.029609, 38.881946]);
+ * var stop = turf.point([-77.021884, 38.889563]);
+ *
+ * var sliced = turf.lineSlice(start, stop, line);
+ *
+ * //addToMap
+ * var addToMap = [start, stop, line]
+ */
+function lineSlice(startPt, stopPt, line) {
+  // Validation
+  var coords = invariant.getCoords(line);
+  if (invariant.getType(line) !== "LineString")
+    throw new Error("line must be a LineString");
+
+  var startVertex = nearestPointOnLine__default['default'](line, startPt);
+  var stopVertex = nearestPointOnLine__default['default'](line, stopPt);
+  var ends;
+  if (startVertex.properties.index <= stopVertex.properties.index) {
+    ends = [startVertex, stopVertex];
+  } else {
+    ends = [stopVertex, startVertex];
+  }
+  var clipCoords = [ends[0].geometry.coordinates];
+  for (
+    var i = ends[0].properties.index + 1;
+    i < ends[1].properties.index + 1;
+    i++
+  ) {
+    clipCoords.push(coords[i]);
+  }
+  clipCoords.push(ends[1].geometry.coordinates);
+  return helpers.lineString(clipCoords, line.properties);
+}
+
+module.exports = lineSlice;
+module.exports.default = lineSlice;

frontend/node_modules/@turf/line-slice/index.d.ts

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+import { Feature, LineString, Coord } from "@turf/helpers";
+
+/**
+ * http://turfjs.org/docs/#lineslice
+ */
+export default function lineSlice(
+  startPt: Coord,
+  stopPt: Coord,
+  line: Feature<LineString> | LineString
+): Feature<LineString>;

frontend/node_modules/@turf/line-slice/package.json

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+{
+  "name": "@turf/line-slice",
+  "version": "6.5.0",
+  "description": "turf line-slice module",
+  "author": "Turf Authors",
+  "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",
+    "linestring",
+    "geojson",
+    "linear",
+    "reference",
+    "line",
+    "distance"
+  ],
+  "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": "index.d.ts",
+  "sideEffects": false,
+  "files": [
+    "dist",
+    "index.d.ts"
+  ],
+  "scripts": {
+    "bench": "node -r esm bench.js",
+    "build": "rollup -c ../../rollup.config.js && echo '{\"type\":\"module\"}' > dist/es/package.json",
+    "docs": "node ../../scripts/generate-readmes",
+    "test": "npm-run-all test:*",
+    "test:tape": "node -r esm test.js"
+  },
+  "devDependencies": {
+    "@turf/truncate": "^6.5.0",
+    "benchmark": "*",
+    "load-json-file": "*",
+    "npm-run-all": "*",
+    "rollup": "*",
+    "tape": "*",
+    "write-json-file": "*"
+  },
+  "dependencies": {
+    "@turf/helpers": "^6.5.0",
+    "@turf/invariant": "^6.5.0",
+    "@turf/nearest-point-on-line": "^6.5.0"
+  },
+  "gitHead": "5375941072b90d489389db22b43bfe809d5e451e"
+}