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frontend/node_modules/@turf/ellipse/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/ellipse/README.md

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+# @turf/ellipse
+
+<!-- Generated by documentation.js. Update this documentation by updating the source code. -->
+
+## ellipse
+
+Takes a [Point][1] and calculates the ellipse polygon given two semi-axes expressed in variable units and steps for precision.
+
+**Parameters**
+
+-   `center` **[Coord][2]** center point
+-   `xSemiAxis` **[number][3]** semi (major) axis of the ellipse along the x-axis
+-   `ySemiAxis` **[number][3]** semi (minor) axis of the ellipse along the y-axis
+-   `options` **[Object][4]** Optional parameters (optional, default `{}`)
+    -   `options.angle` **[number][3]** angle of rotation (along the vertical axis), from North in decimal degrees, negative clockwise (optional, default `0`)
+    -   `options.pivot` **[Coord][2]** point around which the rotation will be performed (optional, default `'origin'`)
+    -   `options.steps` **[number][3]** number of steps (optional, default `64`)
+    -   `options.units` **[string][5]** unit of measurement for axes (optional, default `'kilometers'`)
+    -   `options.properties` **[Object][4]** properties (optional, default `{}`)
+
+**Examples**
+
+```javascript
+var center = [-75, 40];
+var xSemiAxis = 5;
+var ySemiAxis = 2;
+var ellipse = turf.ellipse(center, xSemiAxis, ySemiAxis);
+
+//addToMap
+var addToMap = [turf.point(center), ellipse]
+```
+
+Returns **[Feature][6]&lt;[Polygon][7]>** ellipse polygon
+
+[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-3.1.6
+
+<!-- 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/ellipse
+```
+
+Or install the Turf module that includes it as a function:
+
+```sh
+$ npm install @turf/turf
+```

frontend/node_modules/@turf/ellipse/dist/es/index.js

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+import { isObject, isNumber, degreesToRadians, polygon } from '@turf/helpers';
+import rhumbDestination from '@turf/rhumb-destination';
+import transformRotate from '@turf/transform-rotate';
+import { getCoord } from '@turf/invariant';
+
+/**
+ * Takes a {@link Point} and calculates the ellipse polygon given two semi-axes expressed in variable units and steps for precision.
+ *
+ * @param {Coord} center center point
+ * @param {number} xSemiAxis semi (major) axis of the ellipse along the x-axis
+ * @param {number} ySemiAxis semi (minor) axis of the ellipse along the y-axis
+ * @param {Object} [options={}] Optional parameters
+ * @param {number} [options.angle=0] angle of rotation in decimal degrees, positive clockwise
+ * @param {Coord} [options.pivot='origin'] point around which the rotation will be performed
+ * @param {number} [options.steps=64] number of steps
+ * @param {string} [options.units='kilometers'] unit of measurement for axes
+ * @param {Object} [options.properties={}] properties
+ * @returns {Feature<Polygon>} ellipse polygon
+ * @example
+ * var center = [-75, 40];
+ * var xSemiAxis = 5;
+ * var ySemiAxis = 2;
+ * var ellipse = turf.ellipse(center, xSemiAxis, ySemiAxis);
+ *
+ * //addToMap
+ * var addToMap = [turf.point(center), ellipse]
+ */
+function ellipse(center, xSemiAxis, ySemiAxis, options) {
+  // Optional params
+  options = options || {};
+  var steps = options.steps || 64;
+  var units = options.units || "kilometers";
+  var angle = options.angle || 0;
+  var pivot = options.pivot || center;
+  var properties = options.properties || center.properties || {};
+
+  // validation
+  if (!center) throw new Error("center is required");
+  if (!xSemiAxis) throw new Error("xSemiAxis is required");
+  if (!ySemiAxis) throw new Error("ySemiAxis is required");
+  if (!isObject(options)) throw new Error("options must be an object");
+  if (!isNumber(steps)) throw new Error("steps must be a number");
+  if (!isNumber(angle)) throw new Error("angle must be a number");
+
+  var centerCoords = getCoord(center);
+  if (units === "degrees") {
+    var angleRad = degreesToRadians(angle);
+  } else {
+    xSemiAxis = rhumbDestination(center, xSemiAxis, 90, { units: units });
+    ySemiAxis = rhumbDestination(center, ySemiAxis, 0, { units: units });
+    xSemiAxis = getCoord(xSemiAxis)[0] - centerCoords[0];
+    ySemiAxis = getCoord(ySemiAxis)[1] - centerCoords[1];
+  }
+
+  var coordinates = [];
+  for (var i = 0; i < steps; i += 1) {
+    var stepAngle = (i * -360) / steps;
+    var x =
+      (xSemiAxis * ySemiAxis) /
+      Math.sqrt(
+        Math.pow(ySemiAxis, 2) +
+          Math.pow(xSemiAxis, 2) * Math.pow(getTanDeg(stepAngle), 2)
+      );
+    var y =
+      (xSemiAxis * ySemiAxis) /
+      Math.sqrt(
+        Math.pow(xSemiAxis, 2) +
+          Math.pow(ySemiAxis, 2) / Math.pow(getTanDeg(stepAngle), 2)
+      );
+
+    if (stepAngle < -90 && stepAngle >= -270) x = -x;
+    if (stepAngle < -180 && stepAngle >= -360) y = -y;
+    if (units === "degrees") {
+      var newx = x * Math.cos(angleRad) + y * Math.sin(angleRad);
+      var newy = y * Math.cos(angleRad) - x * Math.sin(angleRad);
+      x = newx;
+      y = newy;
+    }
+
+    coordinates.push([x + centerCoords[0], y + centerCoords[1]]);
+  }
+  coordinates.push(coordinates[0]);
+  if (units === "degrees") {
+    return polygon([coordinates], properties);
+  } else {
+    return transformRotate(polygon([coordinates], properties), angle, {
+      pivot: pivot,
+    });
+  }
+}
+
+/**
+ * Get Tan Degrees
+ *
+ * @private
+ * @param {number} deg Degrees
+ * @returns {number} Tan Degrees
+ */
+function getTanDeg(deg) {
+  var rad = (deg * Math.PI) / 180;
+  return Math.tan(rad);
+}
+
+export default ellipse;

frontend/node_modules/@turf/ellipse/dist/es/package.json

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+{"type":"module"}

frontend/node_modules/@turf/ellipse/dist/js/index.js

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+'use strict';
+
+var helpers = require('@turf/helpers');
+var rhumbDestination = require('@turf/rhumb-destination');
+var transformRotate = require('@turf/transform-rotate');
+var invariant = require('@turf/invariant');
+
+function _interopDefaultLegacy (e) { return e && typeof e === 'object' && 'default' in e ? e : { 'default': e }; }
+
+var rhumbDestination__default = /*#__PURE__*/_interopDefaultLegacy(rhumbDestination);
+var transformRotate__default = /*#__PURE__*/_interopDefaultLegacy(transformRotate);
+
+/**
+ * Takes a {@link Point} and calculates the ellipse polygon given two semi-axes expressed in variable units and steps for precision.
+ *
+ * @param {Coord} center center point
+ * @param {number} xSemiAxis semi (major) axis of the ellipse along the x-axis
+ * @param {number} ySemiAxis semi (minor) axis of the ellipse along the y-axis
+ * @param {Object} [options={}] Optional parameters
+ * @param {number} [options.angle=0] angle of rotation in decimal degrees, positive clockwise
+ * @param {Coord} [options.pivot='origin'] point around which the rotation will be performed
+ * @param {number} [options.steps=64] number of steps
+ * @param {string} [options.units='kilometers'] unit of measurement for axes
+ * @param {Object} [options.properties={}] properties
+ * @returns {Feature<Polygon>} ellipse polygon
+ * @example
+ * var center = [-75, 40];
+ * var xSemiAxis = 5;
+ * var ySemiAxis = 2;
+ * var ellipse = turf.ellipse(center, xSemiAxis, ySemiAxis);
+ *
+ * //addToMap
+ * var addToMap = [turf.point(center), ellipse]
+ */
+function ellipse(center, xSemiAxis, ySemiAxis, options) {
+  // Optional params
+  options = options || {};
+  var steps = options.steps || 64;
+  var units = options.units || "kilometers";
+  var angle = options.angle || 0;
+  var pivot = options.pivot || center;
+  var properties = options.properties || center.properties || {};
+
+  // validation
+  if (!center) throw new Error("center is required");
+  if (!xSemiAxis) throw new Error("xSemiAxis is required");
+  if (!ySemiAxis) throw new Error("ySemiAxis is required");
+  if (!helpers.isObject(options)) throw new Error("options must be an object");
+  if (!helpers.isNumber(steps)) throw new Error("steps must be a number");
+  if (!helpers.isNumber(angle)) throw new Error("angle must be a number");
+
+  var centerCoords = invariant.getCoord(center);
+  if (units === "degrees") {
+    var angleRad = helpers.degreesToRadians(angle);
+  } else {
+    xSemiAxis = rhumbDestination__default['default'](center, xSemiAxis, 90, { units: units });
+    ySemiAxis = rhumbDestination__default['default'](center, ySemiAxis, 0, { units: units });
+    xSemiAxis = invariant.getCoord(xSemiAxis)[0] - centerCoords[0];
+    ySemiAxis = invariant.getCoord(ySemiAxis)[1] - centerCoords[1];
+  }
+
+  var coordinates = [];
+  for (var i = 0; i < steps; i += 1) {
+    var stepAngle = (i * -360) / steps;
+    var x =
+      (xSemiAxis * ySemiAxis) /
+      Math.sqrt(
+        Math.pow(ySemiAxis, 2) +
+          Math.pow(xSemiAxis, 2) * Math.pow(getTanDeg(stepAngle), 2)
+      );
+    var y =
+      (xSemiAxis * ySemiAxis) /
+      Math.sqrt(
+        Math.pow(xSemiAxis, 2) +
+          Math.pow(ySemiAxis, 2) / Math.pow(getTanDeg(stepAngle), 2)
+      );
+
+    if (stepAngle < -90 && stepAngle >= -270) x = -x;
+    if (stepAngle < -180 && stepAngle >= -360) y = -y;
+    if (units === "degrees") {
+      var newx = x * Math.cos(angleRad) + y * Math.sin(angleRad);
+      var newy = y * Math.cos(angleRad) - x * Math.sin(angleRad);
+      x = newx;
+      y = newy;
+    }
+
+    coordinates.push([x + centerCoords[0], y + centerCoords[1]]);
+  }
+  coordinates.push(coordinates[0]);
+  if (units === "degrees") {
+    return helpers.polygon([coordinates], properties);
+  } else {
+    return transformRotate__default['default'](helpers.polygon([coordinates], properties), angle, {
+      pivot: pivot,
+    });
+  }
+}
+
+/**
+ * Get Tan Degrees
+ *
+ * @private
+ * @param {number} deg Degrees
+ * @returns {number} Tan Degrees
+ */
+function getTanDeg(deg) {
+  var rad = (deg * Math.PI) / 180;
+  return Math.tan(rad);
+}
+
+module.exports = ellipse;
+module.exports.default = ellipse;

frontend/node_modules/@turf/ellipse/index.d.ts

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+import { Feature, Coord, Polygon, Units, Properties } from "@turf/helpers";
+
+/**
+ * http://turfjs.org/docs/#ellipse
+ */
+export default function (
+  center: Coord,
+  xSemiAxis: number,
+  ySemiAxis: number,
+  options?: {
+    steps?: number;
+    units?: Units;
+    properties?: Properties;
+  }
+): Feature<Polygon>;

frontend/node_modules/@turf/ellipse/package.json

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+{
+  "name": "@turf/ellipse",
+  "version": "6.5.0",
+  "description": "turf ellipse module",
+  "author": "Turf Authors",
+  "contributors": [
+    "Moacir P. de Sá Pereira <@muziejus>"
+  ],
+  "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",
+    "ellipse"
+  ],
+  "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": {
+    "@mapbox/geojsonhint": "*",
+    "@turf/bbox-polygon": "^6.5.0",
+    "@turf/circle": "^6.5.0",
+    "@turf/destination": "^6.5.0",
+    "@turf/truncate": "^6.5.0",
+    "benchmark": "*",
+    "glob": "*",
+    "load-json-file": "*",
+    "npm-run-all": "*",
+    "rollup": "*",
+    "tape": "*",
+    "write-json-file": "*"
+  },
+  "dependencies": {
+    "@turf/helpers": "^6.5.0",
+    "@turf/invariant": "^6.5.0",
+    "@turf/rhumb-destination": "^6.5.0",
+    "@turf/transform-rotate": "^6.5.0"
+  },
+  "gitHead": "5375941072b90d489389db22b43bfe809d5e451e"
+}