使用经度/纬度作为航点答案

【问题标题】：Using Longitude/Latitude as Waypoint使用经度/纬度作为航点
【发布时间】：2012-10-03 15:42:21
【问题描述】：

我正在尝试在我的谷歌地图中使用经度纬度作为航点，但似乎无法正常工作。

这是我推动价值观的方式

waypts_mtlsheloc.push({
    location: (45.658197,-73.636333), //I don't think I'm supposed to write this like that. But can't find the right way.
    stopover: true
})

然后尝试像这样修改我的行

service.route({
    origin: latlng_mtlsheloc[0],
    destination: latlng_mtlsheloc[latlng_mtlsheloc.length - 1],
    waypoints:waypts_mtlsheloc,
    travelMode: google.maps.DirectionsTravelMode.DRIVING
}, function(result, status) {
        console.log(status)
        if (status == google.maps.DirectionsStatus.OK) {
        path = path.concat(result.routes[0].overview_path);
        line_mtlsheloc.setPath(result.routes[0].overview_path);
    }
});

但它给了我一个错误“属性 [航点] 错误”，我尝试了不同的方法来记下位置，但似乎找不到正确的方法。

【问题讨论】：

标签： javascript google-maps google-maps-api-3

【解决方案1】：

要将纬度和经度用作航路点，它必须是 google.maps.LatLng 对象（documentation 表示字符串或 LatLng；字符串是地址，LatLng 是地理坐标）

waypts_mtlsheloc.push({
    location: new google.maps.LatLng(45.658197,-73.636333),
    stopover: true
})

Working Example

jsfiddle

代码 sn-p：

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

function initialize() {
  directionsDisplay = new google.maps.DirectionsRenderer();
  var chicago = new google.maps.LatLng(41.850033, -87.6500523);
  var myOptions = {
    zoom: 6,
    mapTypeId: google.maps.MapTypeId.ROADMAP,
    center: chicago
  }
  map = new google.maps.Map(document.getElementById("map_canvas"), myOptions);
  directionsDisplay.setMap(map);
  calcRoute();
}

function calcRoute() {

  var request = {
    origin: "1521 NW 54th St, Seattle, WA 98107 ",
    destination: "San Diego, CA",
    waypoints: [{
      location: new google.maps.LatLng(42.496403, -124.413128),
      stopover: false
    }],
    optimizeWaypoints: true,
    travelMode: google.maps.DirectionsTravelMode.WALKING
  };
  directionsService.route(request, function(response, status) {
    if (status == google.maps.DirectionsStatus.OK) {
      directionsDisplay.setDirections(response);
      var route = response.routes[0];
      var summaryPanel = document.getElementById("directions_panel");
      summaryPanel.innerHTML = "";
      // For each route, display summary information.
      for (var i = 0; i < route.legs.length; i++) {
        var routeSegment = i + 1;
        summaryPanel.innerHTML += "<b>Route Segment: " + routeSegment + "</b><br />";
        summaryPanel.innerHTML += route.legs[i].start_address + " to ";
        summaryPanel.innerHTML += route.legs[i].end_address + "<br />";
        summaryPanel.innerHTML += route.legs[i].distance.text + "<br /><br />";
      }
    } else {
      alert("directions response " + status);
    }
  });
}

google.maps.event.addDomListener(window, "load", initialize);

html {
  height: 100%
}

body {
  height: 100%;
  margin: 0px;
  padding: 0px
}

<script src="https://maps.googleapis.com/maps/api/js?key=AIzaSyCkUOdZ5y7hMm0yrcCQoCvLwzdM6M8s5qk"></script>
<div id="map_canvas" style="float:left;width:70%;height:100%;"></div>
<div id="control_panel" style="float:right;width:30%;text-align:left;padding-top:20px">
  <div id="directions_panel" style="margin:20px;background-color:#FFEE77;"></div>
</div>

【讨论】：