如何获得与谷歌地图API V3总行驶距离是多少？ [英] How to get total driving distance with Google Maps API V3?

问题描述

我曾经是能够得到这样的：

I used to be able to get it like this:

directionsService.route(directionsRequest, function(directionsResult, directionsStatus) {
    var directionsRenderer = new google.maps.DirectionsRenderer({
        directions: directionsResult,
        map: map
    });
    $('#distance').text(directionsResult.trips[0].routes[0].distance.text)
    $('#duration').text(directionsResult.trips[0].routes[0].duration.text)
})

但它看起来像他们改变<一href=\"http://$c$c.google.com/apis/maps/documentation/javascript/reference.html#DirectionsResult\">their对我API ！貌似车次就不再出现，而路线只给你一堆的腿......我真的有遍历所有的腿，现在总结的距离？

But it looks like they changed their API on me! Looks like trips is no longer there, and routes only gives you a bunch of legs... do I really have to iterate over all the legs and sum up the distance now?

推荐答案

根据 Leniel的回答：

var totalDistance = 0;
var totalDuration = 0;
var legs = directionsResult.routes[0].legs;
for(var i=0; i<legs.length; ++i) {
    totalDistance += legs[i].distance.value;
    totalDuration += legs[i].duration.value;
}
$('#distance').text(totalDistance);
$('#duration').text(totalDuration);

其实，这工作得很好过，如果没有任何航点：

Actually, this works just fine too, if you don't have any waypoints:

$('#distance').text(directionsResult.routes[0].legs[0].distance.text);
$('#duration').text(directionsResult.routes[0].legs[0].duration.text);

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