Question

谷歌举了一个例子 http://googlemapsapi.blogspot.com/2007/05/driving-directions-support-added-to.html

源代码可以在某个地方使用，还是在那个精确的例子上有教程？

Answer 1

以下是使用v3 API的一个非常基本的示例：

<!DOCTYPE html>
    <html> 
    <head> 
       <meta http-equiv="content-type" content="text/html; charset=UTF-8"/> 
       <title>Google Maps API v3 Directions Example</title> 
       <script type="text/javascript" 
               src="http://maps.google.com/maps/api/js?sensor=false"></script>
    </head> 
    <body style="font-family: Arial; font-size: 12px;"> 
       <div style="width: 600px;">
         <div id="map" style="width: 280px; height: 400px; float: left;"></div> 
         <div id="panel" style="width: 300px; float: right;"></div> 
       </div>
       
       <script type="text/javascript"> 
    
         var directionsService = new google.maps.DirectionsService();
         var directionsDisplay = new google.maps.DirectionsRenderer();
    
         var map = new google.maps.Map(document.getElementById('map'), {
           zoom:7,
           mapTypeId: google.maps.MapTypeId.ROADMAP
         });
        
         directionsDisplay.setMap(map);
         directionsDisplay.setPanel(document.getElementById('panel'));
    
         var request = {
           origin: 'Chicago', 
           destination: 'New York',
           travelMode: google.maps.DirectionsTravelMode.DRIVING
         };
    
         directionsService.route(request, function(response, status) {
           if (status == google.maps.DirectionsStatus.OK) {
             directionsDisplay.setDirections(response);
           }
         });
       </script> 
    </body> 
    </html>

截图：

Google Maps API v3 Directions Example

Answer 2

在 JavaScript 中使用 v3 API 使用纬度/经度或使用地址获取路线、路线和其他数据的代码：

<script src="https://maps.googleapis.com/maps/api/js?v=3&key=<key>&libraries=places"></script>

<script>
    var directionsService = new google.maps.DirectionsService();

    var start_lat = "41.8781136";
    var start_lon = "-87.6297982";
    var end_lat = "40.7127753";
    var end_lon = "-74.0059728";

    // Using Latitude and longitude
    var request = {
        origin: new google.maps.LatLng(start_lat, start_lon),
        destination: new google.maps.LatLng(end_lat, end_lon),
        optimizeWaypoints: true,
        avoidHighways: false,
        avoidTolls: false,
        travelMode: google.maps.TravelMode.DRIVING
    };

    //Using plain address
    // var request = {
    //     origin: { query: "Chicago, IL, USA" },
    //     destination: {  query: "New York, NY, USA" },
    //     travelMode: google.maps.TravelMode.DRIVING,
    // };

    directionsService.route(request, function(response, status) {
        if (status == google.maps.DirectionsStatus.OK) {
            var route = response.routes[0];
            var leg = response.routes[0].legs[0];
            var polyline = route.overview_polyline;
            var distance = route.legs[0].distance.value;
            var duration = route.legs[0].duration.value;

            console.log(route); // Complete route
            console.log(distance); // Only distance 
            console.log(duration); // Only duration
            console.log(leg); // Route options/list
            console.log(polyline); // Polyline data
        }
    });

</script>

谷歌地图驾驶方向源代码为他们的例子？

2 个答案: