Infowindow仅适用于1条路线，不适用于谷歌地图

Question

我在google地图中总共有5个位置，我已为此设置了标记并添加了标记之间的路径路径，在此路径之间我添加了infowindow，但它仅适用于1路线，不适用于其他3路线，可以有人请帮助我为什么它不适用于其他3条路线，关闭那个infowindow我无法打开那个infowindow，我们可以在路线之间设置一些点，并点击打开infowindow，任何人都可以帮我解决这个问题？

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var geocoder;
            var map;
            var directionsDisplay;
            var directionsService = new google.maps.DirectionsService();
            var locations = [
                ['Manly Beach', -33.80010128657071, 151.28747820854187, 2],
                ['Bondi Beach', -33.890542, 151.274856, 4],
                ['Coogee Beach', -33.923036, 151.259052, 5],
                ['Maroubra Beach', -33.950198, 151.259302, 1],
                ['Cronulla Beach', -34.028249, 151.157507, 3]
            ];
	    var infowindow;

            function initialize() {
                directionsDisplay = new google.maps.DirectionsRenderer();


                var map = new google.maps.Map(document.getElementById('map'), {
                    zoom: 10,
                    center: new google.maps.LatLng(-33.92, 151.25),
                    mapTypeId: google.maps.MapTypeId.ROADMAP
                });
                directionsDisplay.setMap(map);
                var infowindow = new google.maps.InfoWindow();

                var marker, i;
                var request = {
                    travelMode: google.maps.TravelMode.DRIVING
                };
                for (i = 0; i < locations.length; i++) {
                    marker = new google.maps.Marker({
                        position: new google.maps.LatLng(locations[i][1], locations[i][2]),
                    });

                    google.maps.event.addListener(marker, 'click', (function (marker, i) {
                        return function () {
                            infowindow.setContent(locations[i][0]);
                            infowindow.open(map, marker);
                        }
                    })(marker, i));

                    if (i == 0)
                        request.origin = marker.getPosition();
                    else if (i == locations.length - 1)
                        request.destination = marker.getPosition();
                    else {
                        if (!request.waypoints)
                            request.waypoints = [];
                        request.waypoints.push({
                            location: marker.getPosition(),
                            stopover: true
                        });
                    }

                }
                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 />";
			    /*********** INFOWINDOW *****************/
			    var center = response.routes[0].overview_path[Math.floor(response.routes[0].overview_path.length / 2)];
			    infowindow.setPosition(center);
			    infowindow.setContent(response.routes[0].legs[i].duration.text + "<br>" + response.routes[0].legs[i].distance.text);
			    infowindow.open(directionsDisplay.map);
                        }
			
                        computeTotalDistance(response);
                    } else {
                        alert("directions response " + status);
                    }
                });
            }
	    function computeTotalDistance(result) {
                var totalDist = 0;
                var totalTime = 0;
                var myroute = result.routes[0];
                for (i = 0; i < myroute.legs.length; i++) {
                    totalDist += myroute.legs[i].distance.value;
                    totalTime += myroute.legs[i].duration.value;
                }
                totalDist = totalDist / 1000.
                document.getElementById("total").innerHTML = "total distance is: " + totalDist + " km<br>total time is: " + (totalTime / 60).toFixed(2) + " minutes";
            }
            google.maps.event.addDomListener(window, "load", initialize);

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<head> 
	<meta http-equiv="content-type" content="text/html; charset=UTF-8" /> 
	<title>Google Maps Multiple Markers</title> 
	<script src="http://maps.google.com/maps/api/js?key=AIzaSyDYeDBDl-8Wx98Az55EbVnpvRfSIBbwxyE&libraries=places"></script>
    </head> 
    
    
    <div id="map" style="float:left;width: 500px; height: 400px;"></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 id="total"></div>
	</div>

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这里我添加了我的代码，

Answer 1

的问题：

1. 您需要为路线的每条腿创建一个InfoWindow，以显示该路段的距离和持续时间。
2. 你需要计算＆＃34;中心＆＃34;每条腿设置该信息的位置。

  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 />";
    /*********** INFOWINDOW *****************/
    var legs = route.legs;
    var steps = legs[i].steps;
    var stepPath = [];
    for (j = 0; j < steps.length; j++) {
      var nextSegment = steps[j].path;
      for (k = 0; k < nextSegment.length; k++) {
        stepPath.push(nextSegment[k]);
      }
    }
    var center = stepPath[Math.floor(stepPath.length / 2)];
    var stepIW = new google.maps.InfoWindow();
    stepIW.setPosition(center);
    stepIW.setContent(response.routes[0].legs[i].duration.text + "<br>" + response.routes[0].legs[i].distance.text);
    stepIW.open(directionsDisplay.map);
  }

proof of concept fiddle



代码段

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var geocoder;
var map;
var directionsDisplay;
var directionsService = new google.maps.DirectionsService();
var locations = [
  ['Manly Beach', -33.80010128657071, 151.28747820854187, 2],
  ['Bondi Beach', -33.890542, 151.274856, 4],
  ['Coogee Beach', -33.923036, 151.259052, 5],
  ['Maroubra Beach', -33.950198, 151.259302, 1],
  ['Cronulla Beach', -34.028249, 151.157507, 3]
];
var infowindow;

function initialize() {
  directionsDisplay = new google.maps.DirectionsRenderer();


  var map = new google.maps.Map(document.getElementById('map'), {
    zoom: 10,
    center: new google.maps.LatLng(-33.92, 151.25),
    mapTypeId: google.maps.MapTypeId.ROADMAP
  });
  directionsDisplay.setMap(map);
  var infowindow = new google.maps.InfoWindow();

  var marker, i;
  var request = {
    travelMode: google.maps.TravelMode.DRIVING
  };
  for (i = 0; i < locations.length; i++) {
    marker = new google.maps.Marker({
      position: new google.maps.LatLng(locations[i][1], locations[i][2]),
    });

    google.maps.event.addListener(marker, 'click', (function(marker, i) {
      return function() {
        infowindow.setContent(locations[i][0]);
        infowindow.open(map, marker);
      }
    })(marker, i));

    if (i == 0)
      request.origin = marker.getPosition();
    else if (i == locations.length - 1)
      request.destination = marker.getPosition();
    else {
      if (!request.waypoints)
        request.waypoints = [];
      request.waypoints.push({
        location: marker.getPosition(),
        stopover: true
      });
    }

  }
  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 />";
        /*********** INFOWINDOW *****************/
        var legs = route.legs;
        var steps = legs[i].steps;
        var stepPath = [];
        for (j = 0; j < steps.length; j++) {
          var nextSegment = steps[j].path;
          for (k = 0; k < nextSegment.length; k++) {
            stepPath.push(nextSegment[k]);
          }
        }
        var center = stepPath[Math.floor(stepPath.length / 2)];
        var stepIW = new google.maps.InfoWindow();
        stepIW.setPosition(center);
        stepIW.setContent(response.routes[0].legs[i].duration.text + "<br>" + response.routes[0].legs[i].distance.text);
        stepIW.open(directionsDisplay.map);
      }
        computeTotalDistance(response);
    } else {
      alert("directions response " + status);
    }
  });
}

function computeTotalDistance(result) {
  var totalDist = 0;
  var totalTime = 0;
  var myroute = result.routes[0];
  for (i = 0; i < myroute.legs.length; i++) {
    totalDist += myroute.legs[i].distance.value;
    totalTime += myroute.legs[i].duration.value;
  }
  totalDist = totalDist / 1000.
  document.getElementById("total").innerHTML = "total distance is: " + totalDist + " km<br>total time is: " + (totalTime / 60).toFixed(2) + " minutes";
}
google.maps.event.addDomListener(window, "load", initialize);
  var legs = response.routes[0].legs;
  for (i = 0; i < legs.length; i++) {
    var steps = legs[i].steps;
    for (j = 0; j < steps.length; j++) {
      var nextSegment = steps[j].path;
      var stepPolyline = new google.maps.Polyline(polylineOptions);
      for (k = 0; k < nextSegment.length; k++) {
        stepPolyline.getPath().push(nextSegment[k]);
      }
      polylines.push(stepPolyline);
      stepPolyline.setMap(map);
      // route click listeners, different one on each step
      google.maps.event.addListener(stepPolyline, 'click', function(evt) {
        infowindow.setContent("you clicked on the route<br>" + evt.latLng.toUrlValue(6));
        infowindow.setPosition(evt.latLng);
        infowindow.open(map);
      })
    }
  }
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html, body, #map {
    height: 100%;
    width: 100%;
    margin: 0px;
    padding: 0px
}
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<script src="https://maps.googleapis.com/maps/api/js?libraries=geometry"></script>
<div id="map"></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 id="total"></div>
</div>
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