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我试图在我点击路线的任何地方画一个圆圈。我寻找了一个关于如何使路线可点击的解决方案，但找不到任何有用的东西......下面是我的代码。当我点击路线但没有创建圆圈时，我没有收到任何错误。

directionsDisplay = new google.maps.DirectionsRenderer(rendererOptions);

//direction service request here...

google.maps.event.addListener(directionsDisplay, 'click', function(event) {

var routeClick = new google.maps.Circle({
  center: event.latLng, //center where you click
  radius: 500,
  strokeColor: "#0000FF",
  strokeOpacity: 0.8,
  strokeWeight: 2,
  fillColor: "#0000FF",
  fillOpacity: 0.4
});

routeClick.setMap(map);

});

更新：

根据 Geocodezip 的脚本http://www.geocodezip.com/v3_directions_custom_iconsC.html和官方 API 示例https://developers.google.com/maps/documentation/javascript/examples/elevation-paths创建您自己的方向折线的工作代码

    // Draw the path
    function drawPath(path) {
      // Display a polyline of the elevation path.
      var pathOptions = {
        path: path,
        strokeColor: '#0000CC',
        strokeWeight: 5,
        opacity: 0.4,
        map: map
      }
      routePolyline = new google.maps.Polyline(pathOptions);
    }

然后在我添加的方向服务请求中

directionService.route(request, function(result, status) {
  var path = result.routes[0].overview_path;  
  drawPath(path);
});
4

1 回答 1

14

DirectionsRenderer上没有“点击”事件

您可以自己渲染折线并向其添加单击事件侦听器或向地图添加单击侦听器。

自定义方向渲染器示例

概念证明小提琴

代码片段：

var infowindow = new google.maps.InfoWindow();
var directions = new google.maps.DirectionsService();
var renderer = new google.maps.DirectionsRenderer({
  suppressPolylines: true,
  infoWindow: infowindow,
});
var map;

function initialize() {
  var mapOptions = {
    zoom: 13,
    center: new google.maps.LatLng(40.7482333, -73.8681295),
    mapTypeId: google.maps.MapTypeId.ROADMAP
  };

  map = new google.maps.Map(document.getElementById('map'), mapOptions);

  google.maps.event.addDomListener(document.getElementById('go'), 'click',
    route);

  var input = document.getElementById('from');
  var autocomplete = new google.maps.places.Autocomplete(input);
  autocomplete.bindTo('bounds', map);
  route();
}

function route() {
  var request = {
    origin: document.getElementById('from').value,
    destination: '51 St, New York, NY 10022, USA',
    travelMode: google.maps.DirectionsTravelMode.WALKING
  };

  var panel = document.getElementById('panel');
  panel.innerHTML = '';
  directions.route(request, function(response, status) {
    if (status == google.maps.DirectionsStatus.OK) {
      renderer.setDirections(response);
      renderer.setMap(map);
      renderer.setPanel(panel);
      renderDirectionsPolylines(response);
      console.log(renderer.getDirections());
    } else {
      renderer.setMap(null);
      renderer.setPanel(null);
    }

  });

}

var polylineOptions = {
  strokeColor: '#C83939',
  strokeOpacity: 1,
  strokeWeight: 4
};
var polylines = [];
function renderDirectionsPolylines(response) {
  for (var i=0; i<polylines.length; i++) {
    polylines[i].setMap(null);
  }
  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);
      })
    }
  }
}
google.maps.event.addDomListener(window, 'load', initialize);
html,
body {
  height: 100%;
  padding: 0;
  margin: 0;
  color: black;
  font-family: arial, sans-serif;
  font-size: 13px;
}
#map {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  right: 50%;
}
#panel-wpr {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  right: 0;
  overflow: auto;
}
#panel {
  font-family: arial;
  padding: 0 5px;
}
#info {
  padding: 5px;
}
#from {
  width: 90%;
  font-size: 1.2em;
}
.adp-directions {
  width: 100%;
}
.input {
  background-color: white;
  padding-left: 8px;
  border: 1px solid #D9D9D9;
  border-top: 1px solid silver;
  -webkit-border-radius: 1px;
  -moz-border-radius: 1px;
  border-radius: 1px;
}
.time {
  margin: 0;
  height: 17px;
  border: 1px solid;
  border-top-color: #CCC;
  border-right-color: #999;
  border-left-color: #999;
  border-bottom-color: #CCC;
  padding: 2px 15px 1px 1px;
}
button {
  border: 1px solid #3079ED;
  color: white;
  background-color: #4D90FE;
  background-image: -webkit-gradient(linear, left top, left bottom, from(#4D90FE), to(#4787ED));
  background-image: -webkit-linear-gradient(top, #4D90FE, #4787ED);
  background-image: -moz-linear-gradient(top, #4D90FE, #4787ED);
  background-image: -ms-linear-gradient(top, #4D90FE, #4787ED);
  background-image: -o-linear-gradient(top, #4D90FE, #4787ED);
  background-image: linear-gradient(top, #4D90FE, #4787ED);
  filter: progid: DXImageTransform.Microsoft.gradient(startColorStr='#4d90fe', EndColorStr='#4787ed');
  display: inline-block;
  min-width: 54px;
  text-align: center;
  font-weight: bold;
  padding: 0 8px;
  line-height: 27px;
  -webkit-border-radius: 2px;
  -moz-border-radius: 2px;
  border-radius: 2px;
  -webkit-transition: all 0.218s;
  -moz-transition: all 0.218s;
  -o-transition: all 0.218s;
  transition: all 0.218s;
}
#info div {
  line-height: 22px;
  font-size: 110%;
}
.btn {} #panel-wpr {
  border-left: 1px solid #e6e6e6;
}
#info {
  border-bottom: 1px solid #E6E6E6;
  margin-bottom: 5px;
}
h2 {
  margin: 0;
  padding: 0;
}
<script src="https://maps.googleapis.com/maps/api/js?libraries=places&key=AIzaSyCkUOdZ5y7hMm0yrcCQoCvLwzdM6M8s5qk"></script>
<title>Google Maps JavaScript API v3 Example: Transit</title>
<div id="transit-wpr">
  <button id="transit">Toggle transit layer</button>
</div>
<div id="map"></div>
<div id="panel-wpr">
  <div id="info">
    <div>
      <label>from:</label>
      <input class="input" id="from" value="Grand Central 42, NY">
    </div>
    <div>
      <label>to:</label>
      <strong>51 St, New York, NY 10022, USA</strong>
    </div>
    <div class="btn">
      <button id="go">Get Directions</button>
    </div>
  </div>
  <div id="panel"></div>
</div>

于 2013-07-27T21:28:59.590 回答