text: import { EventEmitter } from '@angular/core';
  
  (function (global, factory) {
  	typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports, require('@angular/core'), require('js-marker-clusterer'), require('rxjs/Observable'), require('@agm/core')) :
  	typeof define === 'function' && define.amd ? define(['exports', '@angular/core', 'js-marker-clusterer', 'rxjs/Observable', '@agm/core'], factory) :
  	(factory((global.ngmaps = global.ngmaps || {}, global.ngmaps.jsMarkerClusterer = global.ngmaps.jsMarkerClusterer || {}),global.ng.core,null,global.Rx,global.ngmaps.core));
  }(this, (function (exports,_angular_core,jsMarkerClusterer,rxjs_Observable,_agm_core) { 'use strict';
  
  var MapsAPILoader = (function () {
      function MapsAPILoader() {
      }
      return MapsAPILoader;
  }());
  MapsAPILoader.decorators = [
      { type: _angular_core.Injectable },
  ];
  /** @nocollapse */
  MapsAPILoader.ctorParameters = function () { return []; };
  
  /**
   * Wrapper class that handles the communication with the Google Maps Javascript
   * API v3
   */
  var GoogleMapsAPIWrapper = (function () {
      function GoogleMapsAPIWrapper(_loader, _zone) {
          var _this = this;
          this._loader = _loader;
          this._zone = _zone;
          this._map =
              new Promise(function (resolve) { _this._mapResolver = resolve; });
      }
      GoogleMapsAPIWrapper.prototype.createMap = function (el, mapOptions) {
          var _this = this;
          return this._loader.load().then(function () {
              var map = new google.maps.Map(el, mapOptions);
              _this._mapResolver(map);
              return;
          });
      };
      GoogleMapsAPIWrapper.prototype.setMapOptions = function (options) {
          this._map.then(function (m) { m.setOptions(options); });
      };
      /**
       * Creates a google map marker with the map context
       */
      GoogleMapsAPIWrapper.prototype.createMarker = function (options, addToMap) {
          if (options === void 0) { options = {}; }
          if (addToMap === void 0) { addToMap = true; }
          return this._map.then(function (map) {
              if (addToMap) {
                  options.map = map;
              }
              //return new google.maps.Marker(options);
              return markerWithLabel(options);
          });
      };
      GoogleMapsAPIWrapper.prototype.createInfoWindow = function (options) {
          return this._map.then(function () { return new google.maps.InfoWindow(options); });
      };
      /**
       * Creates a google.map.Circle for the current map.
       */
      GoogleMapsAPIWrapper.prototype.createCircle = function (options) {
          return this._map.then(function (map) {
              options.map = map;
              return new google.maps.Circle(options);
          });
      };
      GoogleMapsAPIWrapper.prototype.createPolyline = function (options) {
          return this.getNativeMap().then(function (map) {
              var line = new google.maps.Polyline(options);
              line.setMap(map);
              return line;
          });
      };
      GoogleMapsAPIWrapper.prototype.createPolygon = function (options) {
          return this.getNativeMap().then(function (map) {
              var polygon = new google.maps.Polygon(options);
              polygon.setMap(map);
              return polygon;
          });
      };
      /**
       * Creates a new google.map.Data layer for the current map
       */
      GoogleMapsAPIWrapper.prototype.createDataLayer = function (options) {
          return this._map.then(function (m) {
              var data = new google.maps.Data(options);
              data.setMap(m);
              return data;
          });
      };
      /**
       * Determines if given coordinates are insite a Polygon path.
       */
      GoogleMapsAPIWrapper.prototype.containsLocation = function (latLng, polygon) {
          return google.maps.geometry.poly.containsLocation(latLng, polygon);
      };
      GoogleMapsAPIWrapper.prototype.subscribeToMapEvent = function (eventName) {
          var _this = this;
          return rxjs_Observable.Observable.create(function (observer) {
              _this._map.then(function (m) {
                  m.addListener(eventName, function (arg) { _this._zone.run(function () { return observer.next(arg); }); });
              });
          });
      };
      GoogleMapsAPIWrapper.prototype.setCenter = function (latLng) {
          return this._map.then(function (map) { return map.setCenter(latLng); });
      };
      GoogleMapsAPIWrapper.prototype.getZoom = function () { return this._map.then(function (map) { return map.getZoom(); }); };
      GoogleMapsAPIWrapper.prototype.getBounds = function () {
          return this._map.then(function (map) { return map.getBounds(); });
      };
      GoogleMapsAPIWrapper.prototype.setZoom = function (zoom) {
          return this._map.then(function (map) { return map.setZoom(zoom); });
      };
      GoogleMapsAPIWrapper.prototype.getCenter = function () {
          return this._map.then(function (map) { return map.getCenter(); });
      };
      GoogleMapsAPIWrapper.prototype.panTo = function (latLng) {
          return this._map.then(function (map) { return map.panTo(latLng); });
      };
      GoogleMapsAPIWrapper.prototype.panBy = function (x, y) {
          return this._map.then(function (map) { return map.panBy(x, y); });
      };
      GoogleMapsAPIWrapper.prototype.fitBounds = function (latLng) {
          return this._map.then(function (map) { return map.fitBounds(latLng); });
      };
      GoogleMapsAPIWrapper.prototype.panToBounds = function (latLng) {
          return this._map.then(function (map) { return map.panToBounds(latLng); });
      };
      /**
       * Returns the native Google Maps Map instance. Be careful when using this instance directly.
       */
      GoogleMapsAPIWrapper.prototype.getNativeMap = function () { return this._map; };
      /**
       * Triggers the given event name on the map instance.
       */
      GoogleMapsAPIWrapper.prototype.triggerMapEvent = function (eventName) {
          return this._map.then(function (m) { return google.maps.event.trigger(m, eventName); });
      };
      return GoogleMapsAPIWrapper;
  }());
  GoogleMapsAPIWrapper.decorators = [
      { type: _angular_core.Injectable },
  ];
  /** @nocollapse */
  GoogleMapsAPIWrapper.ctorParameters = function () { return [
      { type: MapsAPILoader, },
      { type: _angular_core.NgZone, },
  ]; };
  
  var MarkerManager$1 = (function () {
      function MarkerManager$$1(_mapsWrapper, _zone) {
          this._mapsWrapper = _mapsWrapper;
          this._zone = _zone;
          this._markers = new Map();
      }
      MarkerManager$$1.prototype.deleteMarker = function (marker) {
          var _this = this;
          var m = this._markers.get(marker);
          if (m == null) {
              // marker already deleted
              return Promise.resolve();
          }
          return m.then(function (m) {
              return _this._zone.run(function () {
                  m.setMap(null);
                  _this._markers.delete(marker);
              });
          });
      };
      MarkerManager$$1.prototype.updateMarkerPosition = function (marker) {
          return this._markers.get(marker).then(function (m) { return m.setPosition({ lat: marker.latitude, lng: marker.longitude }); });
      };
      MarkerManager$$1.prototype.updateTitle = function (marker) {
          return this._markers.get(marker).then(function (m) { return m.setTitle(marker.title); });
      };
      MarkerManager$$1.prototype.updateLabel = function (marker) {
          return this._markers.get(marker).then(function (m) { m.setLabel(marker.label); });
      };
      MarkerManager$$1.prototype.updateDraggable = function (marker) {
          return this._markers.get(marker).then(function (m) { return m.setDraggable(marker.draggable); });
      };
      MarkerManager$$1.prototype.updateIcon = function (marker) {
          return this._markers.get(marker).then(function (m) { return m.setIcon(marker.iconUrl); });
      };
      MarkerManager$$1.prototype.updateOpacity = function (marker) {
          return this._markers.get(marker).then(function (m) { return m.setOpacity(marker.opacity); });
      };
      MarkerManager$$1.prototype.updateVisible = function (marker) {
          return this._markers.get(marker).then(function (m) { return m.setVisible(marker.visible); });
      };
      MarkerManager$$1.prototype.updateZIndex = function (marker) {
          return this._markers.get(marker).then(function (m) { return m.setZIndex(marker.zIndex); });
      };
      MarkerManager$$1.prototype.updateClickable = function (marker) {
          return this._markers.get(marker).then(function (m) { return m.setClickable(marker.clickable); });
      };
      MarkerManager$$1.prototype.addMarker = function (marker) {
          var markerPromise = this._mapsWrapper.createMarker({
              position: { lat: marker.latitude, lng: marker.longitude },
              label: marker.label,
              draggable: marker.draggable,
              icon: marker.iconUrl,
              opacity: marker.opacity,
              visible: marker.visible,
              zIndex: marker.zIndex,
              title: marker.title,
              clickable: marker.clickable
          });
          this._markers.set(marker, markerPromise);
      };
      MarkerManager$$1.prototype.getNativeMarker = function (marker) {
          return this._markers.get(marker);
      };
      MarkerManager$$1.prototype.createEventObservable = function (eventName, marker) {
          var _this = this;
          return rxjs_Observable.Observable.create(function (observer) {
              _this._markers.get(marker).then(function (m) {
                  m.addListener(eventName, function (e) { return _this._zone.run(function () { return observer.next(e); }); });
              });
          });
      };
      return MarkerManager$$1;
  }());
  MarkerManager$1.decorators = [
      { type: _angular_core.Injectable },
  ];
  /** @nocollapse */
  MarkerManager$1.ctorParameters = function () { return [
      { type: GoogleMapsAPIWrapper, },
      { type: _angular_core.NgZone, },
  ]; };
  
  var __extends = (window && window.__extends) || (function () {
      var extendStatics = Object.setPrototypeOf ||
          ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
          function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
      return function (d, b) {
          extendStatics(d, b);
          function __() { this.constructor = d; }
          d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
      };
  })();
  var ClusterManager = (function (_super) {
      __extends(ClusterManager, _super);
      function ClusterManager(_mapsWrapper, _zone) {
          var _this = _super.call(this, _mapsWrapper, _zone) || this;
          _this._mapsWrapper = _mapsWrapper;
          _this._zone = _zone;
          _this._clustererInstance = new Promise(function (resolver) {
              _this._resolver = resolver;
          });
          return _this;
      }
      ClusterManager.prototype.init = function (options) {
          var _this = this;
          this._mapsWrapper.getNativeMap().then(function (map) {
              var clusterer = new MarkerClusterer(map, [], options);
              _this._resolver(clusterer);
          });
      };
      ClusterManager.prototype.addMarker = function (marker) {
          var clusterPromise = this._clustererInstance;
          var markerPromise = this._mapsWrapper
              .createMarker({
              position: {
                  lat: marker.latitude,
                  lng: marker.longitude
              },
              label: marker.label,
              draggable: marker.draggable,
              icon: marker.iconUrl,
              opacity: marker.opacity,
              visible: marker.visible,
              zIndex: marker.zIndex,
              title: marker.title,
              clickable: marker.clickable,
              priceFrom: marker.priceFrom,
              labelContent: marker.labelContent,
              labelAnchor: marker.labelAnchor,
              labelClass: marker.labelClass, // the CSS class for the label
              labelInBackground: marker.labelInBackground,
              labelStyle: marker.labelStyle,
              
          }, false);
          Promise
              .all([clusterPromise, markerPromise])
              .then(function (_a) {
              var cluster = _a[0], marker = _a[1];
              return cluster.addMarker(marker);
          });
          this._markers.set(marker, markerPromise);
      };
      ClusterManager.prototype.deleteMarker = function (marker) {
          var _this = this;
          var m = this._markers.get(marker);
          if (m == null) {
              // marker already deleted
              return Promise.resolve();
          }
          return m.then(function (m) {
              _this._zone.run(function () {
                  _this._clustererInstance.then(function (cluster) {
                      cluster.removeMarker(m);
                      _this._markers.delete(marker);
                  });
              });
          });
      };
      ClusterManager.prototype.clearMarkers = function () {
          return this._clustererInstance.then(function (cluster) {
              cluster.clearMarkers();
          });
      };
      ClusterManager.prototype.setGridSize = function (c) {
          this._clustererInstance.then(function (cluster) {
              cluster.setGridSize(c.gridSize);
          });
      };
      ClusterManager.prototype.setMaxZoom = function (c) {
          this._clustererInstance.then(function (cluster) {
              cluster.setMaxZoom(c.maxZoom);
          });
      };
      ClusterManager.prototype.setStyles = function (c) {
          this._clustererInstance.then(function (cluster) {
              cluster.setStyles(c.styles);
          });
      };
      ClusterManager.prototype.setZoomOnClick = function (c) {
          this._clustererInstance.then(function (cluster) {
              if (c.zoomOnClick !== undefined) {
                  cluster.zoomEvent = c.zoomEvent;
                  cluster.zoomOnClick_ = c.zoomOnClick;
              }
          });
      };
      ClusterManager.prototype.setAverageCenter = function (c) {
          this._clustererInstance.then(function (cluster) {
              if (c.averageCenter !== undefined) {
                  cluster.averageCenter_ = c.averageCenter;
              }
          });
      };
      ClusterManager.prototype.setImagePath = function (c) {
          this._clustererInstance.then(function (cluster) {
              if (c.imagePath !== undefined) {
                  cluster.imagePath_ = c.imagePath;
              }
          });
      };
      ClusterManager.prototype.setMinimumClusterSize = function (c) {
          this._clustererInstance.then(function (cluster) {
              if (c.minimumClusterSize !== undefined) {
                  cluster.minimumClusterSize_ = c.minimumClusterSize;
              }
          });
      };
      ClusterManager.prototype.setImageExtension = function (c) {
          this._clustererInstance.then(function (cluster) {
              if (c.imageExtension !== undefined) {
                  cluster.imageExtension_ = c.imageExtension;
              }
          });
      };
      return ClusterManager;
  }(MarkerManager$1));
  ClusterManager.decorators = [
      { type: _angular_core.Injectable },
  ];
  /** @nocollapse */
  ClusterManager.ctorParameters = function () { return [
      { type: GoogleMapsAPIWrapper, },
      { type: _angular_core.NgZone, },
  ]; };
  
  /**
   * AgmMarkerCluster clusters map marker if they are near together
   *
   * ### Example
   * ```typescript
   * import { Component } from '@angular/core';
   *
   * @Component({
   *  selector: 'my-map-cmp',
   *  styles: [`
   *    agm-map {
   *      height: 300px;
   *    }
   * `],
   *  template: `
   *    <agm-map [latitude]="lat" [longitude]="lng" [zoom]="zoom">
   *      <agm-marker-cluster>
   *        <agm-marker [latitude]="lat" [longitude]="lng" [label]="'M'">
   *        </agm-marker>
   *        <agm-marker [latitude]="lat2" [longitude]="lng2" [label]="'N'">
   *        </agm-marker>
   *      </agm-marker-cluster>
   *    </agm-map>
   *  `
   * })
   * ```
   */
  var AgmMarkerCluster = (function () {
      function AgmMarkerCluster(_clusterManager) {
          this._clusterManager = _clusterManager;
      }
      /** @internal */
      AgmMarkerCluster.prototype.ngOnDestroy = function () {
          this._clusterManager.clearMarkers();
      };
      /** @internal */
      AgmMarkerCluster.prototype.ngOnChanges = function (changes) {
          if (changes['gridSize']) {
              this._clusterManager.setGridSize(this);
          }
          if (changes['maxZoom']) {
              this._clusterManager.setMaxZoom(this);
          }
          if (changes['styles']) {
              this._clusterManager.setStyles(this);
          }
          if (changes['zoomOnClick']) {
              this._clusterManager.setZoomOnClick(this);
          }
          if (changes['averageCenter']) {
              this._clusterManager.setAverageCenter(this);
          }
          if (changes['minimumClusterSize']) {
              this._clusterManager.setMinimumClusterSize(this);
          }
          if (changes['styles']) {
              this._clusterManager.setStyles(this);
          }
          if (changes['imagePath']) {
              this._clusterManager.setImagePath(this);
          }
          if (changes['imageExtension']) {
              this._clusterManager.setImageExtension(this);
          }
      };
      /** @internal */
      AgmMarkerCluster.prototype.ngOnInit = function () {
          this._clusterManager.init({
              gridSize: this.gridSize,
              maxZoom: this.maxZoom,
              zoomOnClick: this.zoomOnClick,
              averageCenter: this.averageCenter,
              minimumClusterSize: this.minimumClusterSize,
              styles: this.styles,
              imagePath: this.imagePath,
              imageExtension: this.imageExtension,
          });
      };
      return AgmMarkerCluster;
  }());
  AgmMarkerCluster.decorators = [
      { type: _angular_core.Directive, args: [{
                  selector: 'agm-marker-cluster',
                  providers: [
                      ClusterManager,
                      { provide: _agm_core.MarkerManager, useExisting: ClusterManager },
                      _agm_core.InfoWindowManager,
                  ]
              },] },
  ];
  /** @nocollapse */
  AgmMarkerCluster.ctorParameters = function () { return [
      { type: ClusterManager, },
  ]; };
  AgmMarkerCluster.propDecorators = {
      'gridSize': [{ type: _angular_core.Input },],
      'maxZoom': [{ type: _angular_core.Input },],
      'zoomOnClick': [{ type: _angular_core.Input },],
      'averageCenter': [{ type: _angular_core.Input },],
      'minimumClusterSize': [{ type: _angular_core.Input },],
      'styles': [{ type: _angular_core.Input },],
      'imagePath': [{ type: _angular_core.Input },],
      'imageExtension': [{ type: _angular_core.Input },],
  };
  
  var AgmJsMarkerClustererModule = (function () {
      function AgmJsMarkerClustererModule() {
      }
      return AgmJsMarkerClustererModule;
  }());
  AgmJsMarkerClustererModule.decorators = [
      { type: _angular_core.NgModule, args: [{
                  imports: [_agm_core.AgmCoreModule],
                  declarations: [AgmMarkerCluster],
                  exports: [AgmMarkerCluster]
              },] },
  ];
  /** @nocollapse */
  AgmJsMarkerClustererModule.ctorParameters = function () { return []; };
  
  // main modules
  
  exports.AgmJsMarkerClustererModule = AgmJsMarkerClustererModule;
  exports.AgmMarkerCluster = AgmMarkerCluster;
  exports.ClusterManager = ClusterManager;
  
  Object.defineProperty(exports, '__esModule', { value: true });
  
  })));
  //# sourceMappingURL=js-marker-clusterer.umd.js.map
  