Google Maps v3 API获取路线持续时间失败 [英] Google Maps v3 API getting route duration fails

问题描述

您能否向我解释为什么我在这段代码中没有得到 google.maps.DirectionsStatus.OK ？

  function measureDistance（m1，m2）{
 var wp = new Array（）; 
 var lstart = new google.maps.LatLng（markers [m1] .position）; 
 var lend = new google.maps.LatLng（markers [m2] .position）; 
 var request = {
 origin：lstart，
 destination：lend，
 waypoints：[]，
 optimizeWaypoints：true，
 travelMode：google.maps .DirectionsTravelMode.DRIVING 
}; 
 directionsService.route（request，function（response，status）{
 if（status == google.maps.DirectionsStatus.OK）{
 response.routes [0] .legs [0] .duration.text; 
} else {
 document.getElementById（'locationD'）。value =drawRouteBad; 
} 
 
}）; 
} 
  

标记是一个全球字典与来自地图的标记。 directionsService 是全局定义的（并且在另一个函数中相同的 directionsService 适用于我）。问题是，出于某种原因，我无法得到正确的答复（我在我的网站上的一个字段中有drawRouteBad）。

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问题是，我不需要创建新的LatLng对象。

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  var lstart = markers [m1] .position; 
 var lend = markers [m2] .position; 
  

Could you please explain to me why I don't get google.maps.DirectionsStatus.OK in this piece of code?

function measureDistance(m1, m2) {
    var wp = new Array();
    var lstart = new google.maps.LatLng(markers[m1].position);
    var lend = new google.maps.LatLng(markers[m2].position);
    var request = {
        origin : lstart,
        destination : lend,
        waypoints : [],
        optimizeWaypoints: true,
        travelMode : google.maps.DirectionsTravelMode.DRIVING
    };
    directionsService.route(request, function(response, status) {
        if (status== google.maps.DirectionsStatus.OK) {
            response.routes[0].legs[0].duration.text;
        } else {
            document.getElementById('locationD').value = "drawRouteBad";
        }

    });
}

Markers is a global dictionary with markers from the map. directionsService is defined globally (and the same directionsService works for me in another function). The problem is, that for some reason I can't get correct response (I've got drawRouteBad in one of fields on my website).

解决方案

The problem was, that I don't need to create new LatLng objects. What is inside markers[].position is enough for start and end.

 var lstart = markers[m1].position;
 var lend = markers[m2].position;

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