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460
static/lib/Highcharts-10.2.1/es-modules/Extensions/GeoJSON.js
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460
static/lib/Highcharts-10.2.1/es-modules/Extensions/GeoJSON.js
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/* *
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*
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* (c) 2010-2021 Torstein Honsi
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*
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* License: www.highcharts.com/license
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*
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* !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!!
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*
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* */
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'use strict';
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import Chart from '../Core/Chart/Chart.js';
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import F from '../Core/FormatUtilities.js';
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var format = F.format;
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import H from '../Core/Globals.js';
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var win = H.win;
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import U from '../Core/Utilities.js';
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var error = U.error, extend = U.extend, merge = U.merge, wrap = U.wrap;
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/**
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* Represents the loose structure of a geographic JSON file.
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*
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* @interface Highcharts.GeoJSON
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*/ /**
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* Full copyright note of the geographic data.
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* @name Highcharts.GeoJSON#copyright
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* @type {string|undefined}
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*/ /**
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* Short copyright note of the geographic data suitable for watermarks.
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* @name Highcharts.GeoJSON#copyrightShort
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* @type {string|undefined}
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*/ /**
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* Additional meta information based on the coordinate reference system.
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* @name Highcharts.GeoJSON#crs
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* @type {Highcharts.Dictionary<any>|undefined}
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*/ /**
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* Data sets of geographic features.
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* @name Highcharts.GeoJSON#features
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* @type {Array<Highcharts.GeoJSONFeature>}
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*/ /**
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* Map projections and transformations to be used when calculating between
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* lat/lon and chart values. Required for lat/lon support on maps. Allows
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* resizing, rotating, and moving portions of a map within its projected
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* coordinate system while still retaining lat/lon support. If using lat/lon
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* on a portion of the map that does not match a `hitZone`, the definition with
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* the key `default` is used.
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* @name Highcharts.GeoJSON#hc-transform
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* @type {Highcharts.Dictionary<Highcharts.GeoJSONTranslation>|undefined}
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*/ /**
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* Title of the geographic data.
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* @name Highcharts.GeoJSON#title
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* @type {string|undefined}
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*/ /**
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* Type of the geographic data. Type of an optimized map collection is
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* `FeatureCollection`.
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* @name Highcharts.GeoJSON#type
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* @type {string|undefined}
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*/ /**
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* Version of the geographic data.
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* @name Highcharts.GeoJSON#version
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* @type {string|undefined}
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*/
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/**
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* Data set of a geographic feature.
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* @interface Highcharts.GeoJSONFeature
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* @extends Highcharts.Dictionary<*>
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*/ /**
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* Data type of the geographic feature.
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* @name Highcharts.GeoJSONFeature#type
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* @type {string}
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*/
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/**
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* Describes the map projection and transformations applied to a portion of
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* a map.
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* @interface Highcharts.GeoJSONTranslation
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*/ /**
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* The coordinate reference system used to generate this portion of the map.
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* @name Highcharts.GeoJSONTranslation#crs
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* @type {string}
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*/ /**
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* Define the portion of the map that this defintion applies to. Defined as a
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* GeoJSON polygon feature object, with `type` and `coordinates` properties.
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* @name Highcharts.GeoJSONTranslation#hitZone
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* @type {Highcharts.Dictionary<*>|undefined}
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*/ /**
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* Property for internal use for maps generated by Highsoft.
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* @name Highcharts.GeoJSONTranslation#jsonmarginX
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* @type {number|undefined}
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*/ /**
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* Property for internal use for maps generated by Highsoft.
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* @name Highcharts.GeoJSONTranslation#jsonmarginY
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* @type {number|undefined}
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*/ /**
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* Property for internal use for maps generated by Highsoft.
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* @name Highcharts.GeoJSONTranslation#jsonres
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* @type {number|undefined}
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*/ /**
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* Specifies clockwise rotation of the coordinates after the projection, but
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* before scaling and panning. Defined in radians, relative to the coordinate
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* system origin.
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* @name Highcharts.GeoJSONTranslation#rotation
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* @type {number|undefined}
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*/ /**
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* The scaling factor applied to the projected coordinates.
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* @name Highcharts.GeoJSONTranslation#scale
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* @type {number|undefined}
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*/ /**
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* Property for internal use for maps generated by Highsoft.
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* @name Highcharts.GeoJSONTranslation#xoffset
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* @type {number|undefined}
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*/ /**
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* X offset of projected coordinates after scaling.
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* @name Highcharts.GeoJSONTranslation#xpan
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* @type {number|undefined}
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*/ /**
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* Property for internal use for maps generated by Highsoft.
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* @name Highcharts.GeoJSONTranslation#yoffset
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* @type {number|undefined}
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*/ /**
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* Y offset of projected coordinates after scaling.
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* @name Highcharts.GeoJSONTranslation#ypan
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* @type {number|undefined}
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*/
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/**
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* Result object of a map transformation.
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*
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* @interface Highcharts.ProjectedXY
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*/ /**
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* X coordinate in projected units.
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* @name Highcharts.ProjectedXY#x
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* @type {number}
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*/ /**
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* Y coordinate in projected units
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* @name Highcharts.ProjectedXY#y
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* @type {number}
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*/
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/**
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* A latitude/longitude object.
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*
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* @interface Highcharts.MapLonLatObject
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*/ /**
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* The latitude.
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* @name Highcharts.MapLonLatObject#lat
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* @type {number}
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*/ /**
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* The longitude.
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* @name Highcharts.MapLonLatObject#lon
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* @type {number}
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*/
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/**
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* An array of longitude, latitude.
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*
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* @typedef {Array<number>} Highcharts.LonLatArray
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*/
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/**
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* A TopoJSON object, see description on the
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* [project's GitHub page](https://github.com/topojson/topojson).
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*
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* @typedef {Object} Highcharts.TopoJSON
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*/
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''; // detach doclets above
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/* eslint-disable no-invalid-this, valid-jsdoc */
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/**
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* Highcharts Maps only. Get point from latitude and longitude using specified
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* transform definition.
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*
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* @requires modules/map
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*
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* @sample maps/series/latlon-transform/
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* Use specific transformation for lat/lon
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*
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* @function Highcharts.Chart#transformFromLatLon
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*
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* @param {Highcharts.MapLonLatObject} latLon
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* A latitude/longitude object.
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*
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* @param {*} transform
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* The transform definition to use as explained in the
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* {@link https://www.highcharts.com/docs/maps/latlon|documentation}.
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*
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* @return {ProjectedXY}
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* An object with `x` and `y` properties.
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*/
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Chart.prototype.transformFromLatLon = function (latLon, transform) {
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/**
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* Allows to manually load the proj4 library from Highcharts options
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* instead of the `window`.
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* In case of loading the library from a `script` tag,
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* this option is not needed, it will be loaded from there by default.
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*
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* @type {Function}
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* @product highmaps
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* @apioption chart.proj4
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*/
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var proj4 = this.options.chart.proj4 || win.proj4;
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if (!proj4) {
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error(21, false, this);
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return;
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}
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var _a = transform.jsonmarginX, jsonmarginX = _a === void 0 ? 0 : _a, _b = transform.jsonmarginY, jsonmarginY = _b === void 0 ? 0 : _b, _c = transform.jsonres, jsonres = _c === void 0 ? 1 : _c, _d = transform.scale, scale = _d === void 0 ? 1 : _d, _e = transform.xoffset, xoffset = _e === void 0 ? 0 : _e, _f = transform.xpan, xpan = _f === void 0 ? 0 : _f, _g = transform.yoffset, yoffset = _g === void 0 ? 0 : _g, _h = transform.ypan, ypan = _h === void 0 ? 0 : _h;
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var projected = proj4(transform.crs, [latLon.lon, latLon.lat]), cosAngle = transform.cosAngle ||
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(transform.rotation && Math.cos(transform.rotation)), sinAngle = transform.sinAngle ||
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(transform.rotation && Math.sin(transform.rotation)), rotated = transform.rotation ? [
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projected[0] * cosAngle + projected[1] * sinAngle,
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-projected[0] * sinAngle + projected[1] * cosAngle
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] : projected;
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return {
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x: ((rotated[0] - xoffset) * scale + xpan) * jsonres + jsonmarginX,
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y: -(((yoffset - rotated[1]) * scale + ypan) * jsonres - jsonmarginY)
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};
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};
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/**
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* Highcharts Maps only. Get latLon from point using specified transform
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* definition. The method returns an object with the numeric properties `lat`
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* and `lon`.
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*
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* @requires modules/map
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*
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* @sample maps/series/latlon-transform/ Use specific transformation for lat/lon
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*
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* @function Highcharts.Chart#transformToLatLon
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*
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* @param {Highcharts.Point|Highcharts.ProjectedXY} point A `Point` instance, or
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* any object containing the properties `x` and `y` with numeric values.
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||||
*
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* @param {*} transform The transform definition to use as explained in the
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* {@link https://www.highcharts.com/docs/maps/latlon|documentation}.
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*
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* @return {Highcharts.MapLonLatObject|undefined} An object with `lat` and `lon`
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* properties.
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*/
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Chart.prototype.transformToLatLon = function (point, transform) {
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var proj4 = this.options.chart.proj4 || win.proj4;
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if (!proj4) {
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error(21, false, this);
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return;
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||||
}
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if (point.y === null) {
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return;
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}
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var _a = transform.jsonmarginX, jsonmarginX = _a === void 0 ? 0 : _a, _b = transform.jsonmarginY, jsonmarginY = _b === void 0 ? 0 : _b, _c = transform.jsonres, jsonres = _c === void 0 ? 1 : _c, _d = transform.scale, scale = _d === void 0 ? 1 : _d, _e = transform.xoffset, xoffset = _e === void 0 ? 0 : _e, _f = transform.xpan, xpan = _f === void 0 ? 0 : _f, _g = transform.yoffset, yoffset = _g === void 0 ? 0 : _g, _h = transform.ypan, ypan = _h === void 0 ? 0 : _h;
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var normalized = {
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x: ((point.x - jsonmarginX) / jsonres - xpan) / scale + xoffset,
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y: ((point.y - jsonmarginY) / jsonres + ypan) / scale + yoffset
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}, cosAngle = transform.cosAngle ||
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(transform.rotation && Math.cos(transform.rotation)), sinAngle = transform.sinAngle ||
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(transform.rotation && Math.sin(transform.rotation)),
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// Note: Inverted sinAngle to reverse rotation direction
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projected = proj4(transform.crs, 'WGS84', transform.rotation ? {
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x: normalized.x * cosAngle + normalized.y * -sinAngle,
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y: normalized.x * sinAngle + normalized.y * cosAngle
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} : normalized);
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return { lat: projected.y, lon: projected.x };
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};
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/**
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* Deprecated. Use `MapView.projectedUnitsToLonLat` instead.
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*
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* @deprecated
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*
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* @requires modules/map
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*
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* @function Highcharts.Chart#fromPointToLatLon
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*
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* @param {Highcharts.Point|Highcharts.ProjectedXY} point A `Point`
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* instance or anything containing `x` and `y` properties with numeric
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* values.
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*
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* @return {Highcharts.MapLonLatObject|undefined} An object with `lat` and `lon`
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* properties.
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*/
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Chart.prototype.fromPointToLatLon = function (point) {
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return this.mapView && this.mapView.projectedUnitsToLonLat(point);
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};
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/**
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* Deprecated. Use `MapView.lonLatToProjectedUnits` instead.
|
||||
*
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||||
* @deprecated
|
||||
*
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||||
* @requires modules/map
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||||
*
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||||
* @function Highcharts.Chart#fromLatLonToPoint
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||||
*
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* @param {Highcharts.MapLonLatObject} lonLat Coordinates.
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||||
*
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* @return {Highcharts.ProjectedXY}
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* X and Y coordinates in terms of projected values
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*/
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Chart.prototype.fromLatLonToPoint = function (lonLat) {
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return this.mapView && this.mapView.lonLatToProjectedUnits(lonLat);
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};
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/*
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* Convert a TopoJSON topology to GeoJSON. By default the first object is
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* handled.
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* Based on https://github.com/topojson/topojson-specification
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*/
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function topo2geo(topology, objectName) {
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// Decode first object/feature as default
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if (!objectName) {
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objectName = Object.keys(topology.objects)[0];
|
||||
}
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var object = topology.objects[objectName];
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// Already decoded => return cache
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||||
if (object['hc-decoded-geojson']) {
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return object['hc-decoded-geojson'];
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}
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// Do the initial transform
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var arcsArray = topology.arcs;
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if (topology.transform) {
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var _a = topology.transform, scale_1 = _a.scale, translate_1 = _a.translate;
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arcsArray = topology.arcs.map(function (arc) {
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var x = 0, y = 0;
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return arc.map(function (position) {
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position = position.slice();
|
||||
position[0] = (x += position[0]) * scale_1[0] + translate_1[0];
|
||||
position[1] = (y += position[1]) * scale_1[1] + translate_1[1];
|
||||
return position;
|
||||
});
|
||||
});
|
||||
}
|
||||
// Recurse down any depth of multi-dimentional arrays of arcs and insert
|
||||
// the coordinates
|
||||
var arcsToCoordinates = function (arcs) {
|
||||
if (typeof arcs[0] === 'number') {
|
||||
return arcs.reduce(function (coordinates, arcNo, i) {
|
||||
var arc = arcNo < 0 ? arcsArray[~arcNo] : arcsArray[arcNo];
|
||||
// The first point of an arc is always identical to the last
|
||||
// point of the previes arc, so slice it off to save further
|
||||
// processing.
|
||||
if (arcNo < 0) {
|
||||
arc = arc.slice(0, i === 0 ? arc.length : arc.length - 1);
|
||||
arc.reverse();
|
||||
}
|
||||
else if (i) {
|
||||
arc = arc.slice(1);
|
||||
}
|
||||
return coordinates.concat(arc);
|
||||
}, []);
|
||||
}
|
||||
return arcs.map(arcsToCoordinates);
|
||||
};
|
||||
var features = object.geometries
|
||||
.map(function (geometry) { return ({
|
||||
type: 'Feature',
|
||||
properties: geometry.properties,
|
||||
geometry: {
|
||||
type: geometry.type,
|
||||
coordinates: geometry.coordinates ||
|
||||
arcsToCoordinates(geometry.arcs)
|
||||
}
|
||||
}); });
|
||||
var geojson = {
|
||||
type: 'FeatureCollection',
|
||||
copyright: topology.copyright,
|
||||
copyrightShort: topology.copyrightShort,
|
||||
copyrightUrl: topology.copyrightUrl,
|
||||
features: features,
|
||||
'hc-recommended-mapview': object['hc-recommended-mapview'],
|
||||
bbox: topology.bbox,
|
||||
title: topology.title
|
||||
};
|
||||
object['hc-decoded-geojson'] = geojson;
|
||||
return geojson;
|
||||
}
|
||||
/**
|
||||
* Highcharts Maps only. Restructure a GeoJSON or TopoJSON object in preparation
|
||||
* to be read directly by the
|
||||
* {@link https://api.highcharts.com/highmaps/plotOptions.series.mapData|series.mapData}
|
||||
* option. The object will be broken down to fit a specific Highcharts type,
|
||||
* either `map`, `mapline` or `mappoint`. Meta data in GeoJSON's properties
|
||||
* object will be copied directly over to {@link Point.properties} in Highcharts
|
||||
* Maps.
|
||||
*
|
||||
* @requires modules/map
|
||||
*
|
||||
* @sample maps/demo/geojson/ Simple areas
|
||||
* @sample maps/demo/mapline-mappoint/ Multiple types
|
||||
* @sample maps/series/mapdata-multiple/ Multiple map sources
|
||||
*
|
||||
* @function Highcharts.geojson
|
||||
*
|
||||
* @param {Highcharts.GeoJSON|Highcharts.TopoJSON} json The GeoJSON or TopoJSON
|
||||
* structure to parse, represented as a JavaScript object.
|
||||
*
|
||||
* @param {string} [hType=map] The Highcharts Maps series type to prepare for.
|
||||
* Setting "map" will return GeoJSON polygons and multipolygons. Setting
|
||||
* "mapline" will return GeoJSON linestrings and multilinestrings.
|
||||
* Setting "mappoint" will return GeoJSON points and multipoints.
|
||||
*
|
||||
*
|
||||
* @return {Array<*>} An object ready for the `mapData` option.
|
||||
*/
|
||||
function geojson(json, hType, series) {
|
||||
if (hType === void 0) { hType = 'map'; }
|
||||
var mapData = [];
|
||||
var geojson = json.type === 'Topology' ? topo2geo(json) : json;
|
||||
geojson.features.forEach(function (feature) {
|
||||
var geometry = feature.geometry || {}, type = geometry.type, coordinates = geometry.coordinates, properties = feature.properties;
|
||||
var pointOptions;
|
||||
if ((hType === 'map' || hType === 'mapbubble') &&
|
||||
(type === 'Polygon' || type === 'MultiPolygon')) {
|
||||
if (coordinates.length) {
|
||||
pointOptions = { geometry: { coordinates: coordinates, type: type } };
|
||||
}
|
||||
}
|
||||
else if (hType === 'mapline' &&
|
||||
(type === 'LineString' ||
|
||||
type === 'MultiLineString')) {
|
||||
if (coordinates.length) {
|
||||
pointOptions = { geometry: { coordinates: coordinates, type: type } };
|
||||
}
|
||||
}
|
||||
else if (hType === 'mappoint' && type === 'Point') {
|
||||
if (coordinates.length) {
|
||||
pointOptions = { geometry: { coordinates: coordinates, type: type } };
|
||||
}
|
||||
}
|
||||
if (pointOptions) {
|
||||
var name_1 = properties && (properties.name || properties.NAME);
|
||||
mapData.push(extend(pointOptions, {
|
||||
name: typeof name_1 === 'string' ? name_1 : void 0,
|
||||
/**
|
||||
* In Highcharts Maps, when data is loaded from GeoJSON, the
|
||||
* GeoJSON item's properies are copied over here.
|
||||
*
|
||||
* @requires modules/map
|
||||
* @name Highcharts.Point#properties
|
||||
* @type {*}
|
||||
*/
|
||||
properties: properties
|
||||
}));
|
||||
}
|
||||
});
|
||||
// Create a credits text that includes map source, to be picked up in
|
||||
// Chart.addCredits
|
||||
if (series && geojson.copyrightShort) {
|
||||
series.chart.mapCredits = format(series.chart.options.credits.mapText, { geojson: geojson });
|
||||
series.chart.mapCreditsFull = format(series.chart.options.credits.mapTextFull, { geojson: geojson });
|
||||
}
|
||||
return mapData;
|
||||
}
|
||||
// Override addCredits to include map source by default
|
||||
wrap(Chart.prototype, 'addCredits', function (proceed, credits) {
|
||||
credits = merge(true, this.options.credits, credits);
|
||||
// Disable credits link if map credits enabled. This to allow for in-text
|
||||
// anchors.
|
||||
if (this.mapCredits) {
|
||||
credits.href = null;
|
||||
}
|
||||
proceed.call(this, credits);
|
||||
// Add full map credits to hover
|
||||
if (this.credits && this.mapCreditsFull) {
|
||||
this.credits.attr({
|
||||
title: this.mapCreditsFull
|
||||
});
|
||||
}
|
||||
});
|
||||
H.geojson = geojson;
|
||||
var GeoJSONModule = {
|
||||
geojson: geojson,
|
||||
topo2geo: topo2geo
|
||||
};
|
||||
export default GeoJSONModule;
|
||||
Reference in New Issue
Block a user