Question

我正在使用markerclusterer库和此代码创建和聚类我的标记：

        var response = _client.Search<IndexBase>(s => s
                                                     .Type(Types.Type(typeof(A), typeof(B)))
                                                     .Query(qry => qry
                                                                .Bool(b => b
                                                                          .Must(m => m
                                                                                    .QueryString(qs => qs
                                                                                                     .DefaultField("_all")
                                                                                                     .Query(request.Query)))))
                                                     .Highlight(h =>
                                                                    h.Fields(f => f.Field("_all")))

这在第一次迭代时工作正常。

再次使用新位置点击populateMapLocationData函数，边界发生变化，地图居中并缩放到新标记的新位置，所以我认为它正在运行，但所有以前的标记仍在那里。

我想要实现的是当我使用一组新位置调用populateMapLocationData时，清除现有标记并使用新标记更新地图。

我见过function populateMapLocationData(locations) { NgMap.getMap({id:'map'}).then(function(map) { $scope.assetMap = map; $scope.initMarkerClusterer(locations); }); }; $scope.initMarkerClusterer = function(locations) { $scope.bounds = new google.maps.LatLngBounds(); var markers = $scope.createMarker(locations); var mcOptions = { imagePath: 'https://cdn.rawgit.com/googlemaps/js-marker-clusterer/gh-pages/images/m' }; var markerCluster = new MarkerClusterer($scope.assetMap, markers, mcOptions); $scope.assetMap.fitBounds($scope.bounds); $scope.assetMap.panToBounds($scope.bounds); }; $scope.createMarker = function(location) { var latLng = new google.maps.LatLng(parseFloat(location.lat), parseFloat(location.lang)); $scope.bounds.extend(latLng); var marker = new google.maps.Marker({position: latLng, title: asset.name}); google.maps.event.addListener(marker, 'click', function() { var infowindow = new google.maps.InfoWindow(); var center = new google.maps.LatLng( parseFloat(asset.lat), parseFloat(asset.lang) ); infowindow.setContent("content"); infowindow.setPosition(center); infowindow.open($scope.assetMap); google.maps.event.addListener($scope.assetMap, 'click', function(event) { infowindow.close(); }); }); return marker; };可以使用，但我没有取得任何成功。

感谢任何建议，谢谢

Answer 1

实际上，如果您使用的是Google的原始markerclusterer.js，要删除标记，您只需要使用其MarkerClusterer.prototype.removeMarker函数并删除一系列标记，您只需使用其MarkerClusterer.prototype.removeMarkers幸运，ngMaps的markerclusterer.js只是原始的包装器。更多关于Google documentation

的内容

例如：

vm.dynMarkers = [ {marker1}, {marker2}, ...] // your marker array
vm.markerClusterer = new MarkerClusterer(map, vm.dynMarkers, {}); // creater your marker cluster
vm.markerClusterer.removeMarkers(vm.dynMarkers); // remove all markers

我为您提供了一个更好的示例，其中我使用了ngMaps示例库作为基础，以便您更容易（确保使用自己的API密钥）：https://plnkr.co/edit/RZNc2KLdO8qmW0o2Kimq?p=preview

以下是嵌入式代码：

var app = angular.module('myApp', ['ngMap']);

app.controller('mapController', function($http, $interval, NgMap) {
  var vm = this;
  vm.removeAllMarkers = removeAllMarkers;
  vm.dynMarkers = [];
  vm.map;

  NgMap.getMap().then(function(map) {
    for (var i = 0; i < 1000; i++) {
      var latLng = new google.maps.LatLng(markers[i].position[0], markers[i].position[1]);
      vm.dynMarkers.push(new google.maps.Marker({
        position: latLng
      }));
    }
    vm.markerClusterer = new MarkerClusterer(map, vm.dynMarkers, {});
    vm.map = map;
  });

  function removeAllMarkers() {
    vm.markerClusterer.removeMarkers(vm.dynMarkers);
    vm.dynMarkers = [];
    console.log('all markers in cluster removed');
  }
});

map,
div[map] {
  display: block;
  width: 600px;
  height: 400px;
}

<!DOCTYPE html>
<html ng-app="myApp">

<head>
  <title>Dynamic ngMap demo</title>
  <meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
  <script src="https://maps.google.com/maps/api/js?key=AIzaSyCD0rWgXRVBa7PgaTWXVp_gU51pgHGviYY"></script>
  <script src="https://code.angularjs.org/1.3.15/angular.js"></script>
  <script src="https://rawgit.com/allenhwkim/angularjs-google-maps/master/build/scripts/ng-map.js"></script>
  <script src="https://rawgit.com/allenhwkim/angularjs-google-maps/master/testapp/scripts/markerclusterer.js"></script>
  <script>
    MarkerClusterer.prototype.MARKER_CLUSTER_IMAGE_PATH_ = 'https://raw.githubusercontent.com/googlemaps/js-marker-clusterer/gh-pages/images/m'; //changed image path
  </script>
  <script src="https://rawgit.com/allenhwkim/angularjs-google-maps/master/testapp/scripts/markers.js"></script>
</head>

<body>
  <h1>Marker Cluster</h1>
  <hr />
  <div ng-controller="mapController as vm">
    <ng-map zoom="2" center="[43.6650000, -79.4103000]"></ng-map>
    <button ng-click="vm.removeAllMarkers();" type="button">Remove All Markers</button>
  </div>
</body>

</html>

如何使用ngMaps在Google地图上刷新/删除标记

1 个答案: