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94 lines
2.6 KiB
JavaScript
94 lines
2.6 KiB
JavaScript
import Cartesian3 from "./Cartesian3.js";
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import Check from "./Check.js";
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import defined from "./defined.js";
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import GeocodeType from "./GeocodeType.js";
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import Rectangle from "./Rectangle.js";
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import Resource from "./Resource.js";
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/**
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* Provides geocoding via a {@link https://pelias.io/|Pelias} server.
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* @alias PeliasGeocoderService
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* @constructor
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*
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* @param {Resource|String} url The endpoint to the Pelias server.
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*
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* @example
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* // Configure a Viewer to use the Pelias server hosted by https://geocode.earth/
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* var viewer = new Cesium.Viewer('cesiumContainer', {
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* geocoder: new Cesium.PeliasGeocoderService(new Cesium.Resource({
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* url: 'https://api.geocode.earth/v1/',
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* queryParameters: {
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* api_key: '<Your geocode.earth API key>'
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* }
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* }))
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* });
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*/
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function PeliasGeocoderService(url) {
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//>>includeStart('debug', pragmas.debug);
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Check.defined("url", url);
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//>>includeEnd('debug');
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this._url = Resource.createIfNeeded(url);
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this._url.appendForwardSlash();
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}
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Object.defineProperties(PeliasGeocoderService.prototype, {
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/**
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* The Resource used to access the Pelias endpoint.
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* @type {Resource}
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* @memberof PeliasGeocoderService.prototype
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* @readonly
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*/
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url: {
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get: function () {
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return this._url;
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},
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},
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});
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/**
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* @function
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*
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* @param {String} query The query to be sent to the geocoder service
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* @param {GeocodeType} [type=GeocodeType.SEARCH] The type of geocode to perform.
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* @returns {Promise<GeocoderService.Result[]>}
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*/
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PeliasGeocoderService.prototype.geocode = function (query, type) {
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//>>includeStart('debug', pragmas.debug);
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Check.typeOf.string("query", query);
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//>>includeEnd('debug');
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var resource = this._url.getDerivedResource({
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url: type === GeocodeType.AUTOCOMPLETE ? "autocomplete" : "search",
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queryParameters: {
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text: query,
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},
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});
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return resource.fetchJson().then(function (results) {
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return results.features.map(function (resultObject) {
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var destination;
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var bboxDegrees = resultObject.bbox;
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if (defined(bboxDegrees)) {
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destination = Rectangle.fromDegrees(
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bboxDegrees[0],
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bboxDegrees[1],
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bboxDegrees[2],
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bboxDegrees[3]
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);
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} else {
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var lon = resultObject.geometry.coordinates[0];
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var lat = resultObject.geometry.coordinates[1];
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destination = Cartesian3.fromDegrees(lon, lat);
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}
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return {
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displayName: resultObject.properties.label,
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destination: destination,
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};
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});
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});
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};
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export default PeliasGeocoderService;
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