javascript中两个位置之间的距离

有人可以帮我解决这个代码片段出了什么问题吗？我最终的目标是使用google javascript API查找距离两个位置.我已经使用geocomplete jquery函数进行地址自动完成.点击搜索没有任何事情发生.我只是一个初学者请帮忙

Nouphal.M.. 8

您可以使用Google地图的DistanceMatrixService来计算两点之间的距离.

以下函数计算

function calculateDistances() {
  origin = document.getElementById('source').value; //Get the source string
  destination = document.getElementById('dest').value; //Get the destination string
  var service = new google.maps.DistanceMatrixService(); //initialize the distance service
  service.getDistanceMatrix(
    {
      origins: [origin], //set origin, you can specify multiple sources here
      destinations: [destination],//set destination, you can specify multiple destinations here
      travelMode: google.maps.TravelMode.DRIVING, //set the travelmode
      unitSystem: google.maps.UnitSystem.METRIC,//The unit system to use when displaying distance
      avoidHighways: false,
      avoidTolls: false
    }, calcDistance); // here calcDistance is the call back function
}

回调函数calcDistance的代码

function calcDistance(response, status) {
  if (status != google.maps.DistanceMatrixStatus.OK) { // check if there is valid result
    alert('Error was: ' + status);
  } else {
    var origins = response.originAddresses;
    var destinations = response.destinationAddresses;
    deleteOverlays();

    for (var i = 0; i < origins.length; i++) {
      var results = response.rows[i].elements;

      for (var j = 0; j < results.length; j++) {

        alert ('Distance from '+origins[i] + ' to ' + destinations[j]
            + ': ' + results[j].distance.text ); // alert the result
      }
    }
  }
}

你可以在这里找到一个工作演示