@yhiot/utils/lib/gps.js

基本工具集

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.getDistance = exports.toRadians = void 0;

var toRadians = function toRadians(d) {
  return d * Math.PI / 180;
};

exports.toRadians = toRadians;

var getDistance = function getDistance(lat1, lng1, lat2, lng2) {
  var radLat1 = toRadians(lat1);
  var radLat2 = toRadians(lat2);
  var deltaLat = radLat1 - radLat2;
  var deltaLng = toRadians(lng1) - toRadians(lng2);
  var dis = 2 * Math.asin(Math.sqrt(Math.pow(Math.sin(deltaLat / 2), 2) + Math.cos(radLat1) * Math.cos(radLat2) * Math.pow(Math.sin(deltaLng / 2), 2)));
  return dis * 6378137;
};

exports.getDistance = getDistance;