谷歌地图V3对齐最近的街道 [英] Google Maps V3 snap to nearest Street

问题描述

当我点击地图时，我想让标记贴近最近的街道。这里有一个很好的例子：
http://econym.org.uk/gmap/ example_snappath.htm （主页： http://econym.org.uk/gmap/ snap.htm ）。
但是 - 这个例子适用于谷歌地图版本2.有没有办法在v3中做到这一点？

When I click into a map I want the marker to get snaped to the nearest street. There is a good exmaple here: http://econym.org.uk/gmap/example_snappath.htm (Main Page:http://econym.org.uk/gmap/snap.htm). However - this example is for google maps version 2. Is there a way to do this in v3?

推荐答案

您提供的示例通过执行方向查找获得结果，然后从中获取第一个位置。在api v3中，这是通过以下代码完成的，其中 map 是您的地图名称

The example that you have given gets the result by doing a direction lookup and then getting the first location from it. In api v3 this is accomplished with the following code where "map" is the name of your map

var directionsService = new google.maps.DirectionsService();

google.maps.event.addListener(map, 'click', function(event) {
    var request = {
        origin:event.latLng, 
        destination:event.latLng,
        travelMode: google.maps.DirectionsTravelMode.DRIVING
    };

    directionsService.route(request, function(response, status) {
      if (status == google.maps.DirectionsStatus.OK) {
          var marker = new google.maps.Marker({
             position: response.routes[0].legs[0].start_location, 
             map: map,
             title:"Hello World!"
          });
      }
    });
});

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