Google地图路线规划

Google地图路线规划：

需求：给定的两点之间Google地图路径规划和详情。

代码实现：

 //map定义省略

 var directionsDisplay = new google.maps.DirectionsRenderer({ 'draggable': true ,suppressInfoWindows:true,suppressMarkers:true});

 var service;

 //得到规划路线
 function getRoute(source,destination,map){
     var directionsService = new google.maps.DirectionsService();
     directionsDisplay.setMap(map);
     var request = {
         origin: source,
         destination: destination,
         travelMode: google.maps.TravelMode.DRIVING
     };
     directionsService.route(request, function (response, status) {
         if (status == google.maps.DirectionsStatus.OK) {
             directionsDisplay.setDirections(response);
         }
     });
 }

 //得到规划路径的详细些信息
 function getDetailsRoutes(source,destination,map){
     service = new google.maps.DistanceMatrixService();
     service.getDistanceMatrix({
         origins: [source],
         destinations: [destination],
         travelMode: google.maps.TravelMode.DRIVING,
         unitSystem: google.maps.UnitSystem.METRIC,
         avoidHighways: false,
         avoidTolls: false
     }, function (response, status) {
         if (status == google.maps.DistanceMatrixStatus.OK && response.rows[0].elements[0].status != "ZERO_RESULTS") {
             var distance = response.rows[0].elements[0].distance.text;
             var duration = response.rows[0].elements[0].duration.text;
             var dvDistance = document.getElementById("siteinfo_modal_label");
             dvDistance.innerHTML = "";
             dvDistance.innerHTML += "Distance: " + distance + "<br />";
             dvDistance.innerHTML += "Duration:" + duration;

         } else {
             alert("Unable to find the distance via road.");
         }
     });