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CartographicGeocoderService.js
64 lines (58 loc) · 2.25 KB
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CartographicGeocoderService.js
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define([
'../ThirdParty/when',
'./Cartesian3',
'./Check'
], function(
when,
Cartesian3,
Check) {
'use strict';
/**
* Geocodes queries containing longitude and latitude coordinates and an optional height.
* Query format: `longitude latitude (height)` with longitude/latitude in degrees and height in meters.
*
* @alias CartographicGeocoderService
* @constructor
*/
function CartographicGeocoderService() {
}
/**
* @function
*
* @param {String} query The query to be sent to the geocoder service
* @returns {Promise<GeocoderService~Result[]>}
*/
CartographicGeocoderService.prototype.geocode = function(query) {
//>>includeStart('debug', pragmas.debug);
Check.typeOf.string('query', query);
//>>includeEnd('debug');
var splitQuery = query.match(/[^\s,\n]+/g);
if ((splitQuery.length === 2) || (splitQuery.length === 3)) {
var longitude = +splitQuery[0];
var latitude = +splitQuery[1];
var height = (splitQuery.length === 3) ? +splitQuery[2] : 300.0;
if (isNaN(longitude) && isNaN(latitude)) {
var coordTest = /^(\d+.?\d*)([nsew])/i;
for (var i = 0; i < splitQuery.length; ++i) {
var splitCoord = splitQuery[i].match(coordTest);
if (coordTest.test(splitQuery[i]) && splitCoord.length === 3) {
if (/^[ns]/i.test(splitCoord[2])) {
latitude = (/^[n]/i.test(splitCoord[2])) ? +splitCoord[1] : -splitCoord[1];
} else if (/^[ew]/i.test(splitCoord[2])) {
longitude = (/^[e]/i.test(splitCoord[2])) ? +splitCoord[1] : -splitCoord[1];
}
}
}
}
if (!isNaN(longitude) && !isNaN(latitude) && !isNaN(height)) {
var result = {
displayName: query,
destination: Cartesian3.fromDegrees(longitude, latitude, height)
};
return when.resolve([result]);
}
}
return when.resolve([]);
};
return CartographicGeocoderService;
});