geocontext

import GeoJSONReader from 'jsts/org/locationtech/jts/io/GeoJSONReader.js' import { DistanceOp } from 'jsts/org/locationtech/jts/operation/distance.js' /** * Compute approximative distance in km between gA and gB. * * @param {object} gA GeoJSON Point * @param {object} gB GeoJSON Geometry */ export default function distance(gA, gB) { const geojsonReader = new GeoJSONReader() const a = geojsonReader.read(gA); const b = geojsonReader.read(gB); // converts to kilometers assuming earth is a sphere const distanceInDegree = DistanceOp.distance(a, b); return 6480.0 * ( distanceInDegree * 2.0 * Math.PI / 360.0 ) ; }