Question

如果使用这样的链接

http://maps.google.com/maps?f=d&hl=en&saddr=25.04202,121.534761
&daddr=25.05202,121.554761&ie=UTF8&0&om=0&output=kml

它将返回坐标值，如下所示：

121.534760,25.042040,0.000000 121.533650,25.042190,0.000000 121.532950,25.042430,0.000000 121.532950,25.042430,0.000000 121.532980,25.044400,0.000000 121.532980,25.044400,0.000000 121.534000,25.044670,0.000000 121.534400,25.044820,0.000000 121.535690,25.045690,0.000000 121.536400,25.045990,0.000000 121.540510,25.046700,0.000000 121.543860,25.047490,0.000000 121.546430,25.048160,0.000000 121.549130,25.048140,0.000000 121.549130,25.048140,0.000000 121.550770,25.048110,0.000000 121.552570,25.048140,0.000000 121.552570,25.048140,0.000000 121.552700,25.049850,0.000000 121.552750,25.051440,0.000000 121.552650,25.051540,0.000000 121.552640,25.051680,0.000000 121.552640,25.051680,0.000000 121.552660,25.052280,0.000000 121.552660,25.052280,0.000000 121.553770,25.052260,0.000000 121.553770,25.052260,0.000000 121.554770,25.052240,0.000000

但是在我的javascript中，它只返回了几个坐标，5-6坐标

这是获取坐标的代码：

function route(FromPlace,ToPlace){
if(!FromPlace&&!ToPlace){
    FromPlace = new google.maps.LatLng(13.692941, 100.750723);
    ToPlace = document.getElementById("endPoint").value;
}
    //directionsService = new google.maps.DirectionsService();
     var request = {
            origin: FromPlace,
            destination: ToPlace,
            travelMode: google.maps.DirectionsTravelMode.DRIVING
        };
    directionsService.route(request, function(response, status) {
        if (status == google.maps.DirectionsStatus.OK) 
        {

            directionsDisplay.setDirections(response);
     for (var i = 0; i < response.routes[0].legs.length; i++) {
             for (var j = 0; j < response.routes[0].legs[i].steps.length; j++) {
                 if(j == response.routes[0].legs[i].steps.length-1){

                    addressRoute = addressRoute+response.routes[0].legs[i].steps[j].end_point.lat()+","
                      +response.routes[0].legs[i].steps[j].end_point.lng()+"";
                    latitude = response.routes[0].legs[i].steps[j].end_point.lat();
                    longitude = response.routes[0].legs[i].steps[j].end_point.lng();
                    destinationDB = latitude +","+ longitude;
                    }else{

                    addressRoute = addressRoute+response.routes[0].legs[i].steps[j].end_point.lat()+","
                      +response.routes[0].legs[i].steps[j].end_point.lng()+"|";

                    }
                 }
            }   
            //document.getElementById("textLocation").innerHTML = addressRoute;
        }
      }); 
   }

如何改进我的代码以获得更具体的坐标，如上面的链接？有什么建议吗？：）

Answer 1

你需要的不是步骤[j] .start_point和steps [j] .end_point，而是每个步骤对象中包含的路径对象。也就是说：

route.legs.forEach(function(leg){
    leg.steps.forEach(function(step){
        step.path.forEach(function(point){
            debug_panel.innerHTML+=point+"<br/>";
        });
    });
});

您希望获得所有步骤中的每一点＆＃39;路径，不仅是起点和终点。

希望有所帮助

如何在谷歌地图的路径路径中获取坐标？

1 个答案: