如何在node.js中找到两个地理位置之间的距离? [英] How to find a distance between two geopoints in node.js?

问题描述

如何使用node.js查找两个地理位置(经度和纬度集)之间的距离.

How to find a distance between two geopoints(set of langitude and longitude) using node.js.

我在使用Google Maps距离矩阵服务的客户端javascript中有代码.

I have code in client side javascript using google maps distance matrix service.

我想在服务器端javascript中做同样的事情(在node.js router.js或datamodel.js中).

I want to do same thing in serversidejavascript(In node.js router.js or datamodel.js).

我的客户端Javascript代码:

My Client Side Javascript code:

  function calculateDistances() {
          var gs =require('googlemaps');
            var latlong = { 'latitude': 52.5112, 'longitude': 13.45155};
         var origin1 = gs.LatLng(13.125511084202,80.029651635576);
      var origin2 = new google.maps.LatLng(12.9898593006481,80.2497744326417);;
           var destinationA = new google.maps.LatLng(13.125511084202,80.029651635576);;
          var destinationB = new google.maps.LatLng(12.9898593006481,80.2497744326417);
       var service = new google.maps.DistanceMatrixService();
      service.getDistanceMatrix(
  {
    origins: [origin1, origin2],
    destinations: [destinationA, destinationB],
    travelMode: google.maps.TravelMode.DRIVING,
    unitSystem: google.maps.UnitSystem.METRIC,
    avoidHighways: false,
    avoidTolls: false
  }, callback);
  }
  function callback(response, status) {
    if (status != google.maps.DistanceMatrixStatus.OK) {
      alert('Error was: ' + status);
    } else {
      var origins = response.originAddresses;
      var destinations = response.destinationAddresses;
      var outputDiv  = '';
      deleteOverlays();

      for (var i = 0; i < origins.length; i++) {
        var results = response.rows[i].elements;
        addMarker(origins[i], false);
        for (var j = 0; j < results.length; j++) {
          addMarker(destinations[j], true);
          outputDiv += origins[i] + ' to ' + destinations[j]
              + ': ' + results[j].distance.text + ' in '
              + results[j].duration.text + '';
        }

      }
      console.log(outputDiv);
    }
  }

您能建议我用距离矩阵示例代码在node.js程序包中做同样的事情吗?

Can u suggest me to do samething in node.js package with distance matrix sample code.

推荐答案

也许是这个软件包? https://github.com/manuelbieh/geolib

Maybe this package? https://github.com/manuelbieh/geolib

这种方法:

geolib.getDistance(object start, object end, [int accuracy])

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