点击缩放时的markerClusterer

google.maps.event.addListener(markerCluster, \'clusterclick\', function(cluster) {
    // your code here
});

cluster.getCenter();
cluster.getMarkers();
cluster.getSize();

map.setCenter(cluster.getCenter()); // zoom to the cluster center
map.setMapTypeId(google.maps.MapTypeId.ROADMAP); // switch map type
map.setOptions(myMapOptions); // apply some other map options (optional)

var mcOptions = {gridSize: 40, maxZoom: 16, zoomOnClick: false, minimumClusterSize: 2};
markerClusterer = new MarkerClusterer(map, markers, mcOptions);

google.maps.event.addListener(markerClusterer, \'clusterclick\', function(cluster){
    map.setCenter(markerClusterer.getCenter());
    map.setZoom(map.getZoom()+1);
});

/**
* Triggers the clusterclick event and zoom\'s if the option is set.
*/
ClusterIcon.prototype.triggerClusterClick = function() {
var markerClusterer = this.cluster_.getMarkerClusterer();

// Trigger the clusterclick event.
google.maps.event.trigger(markerClusterer, \'clusterclick\', this.cluster_);

if (markerClusterer.isZoomOnClick()) {
// Zoom into the cluster.
// this.map_.fitBounds(this.cluster_.getBounds());

// modified zoom in function
this.map_.setZoom(markerClusterer.getMaxZoom()+1);

 }
};

/**
 * Triggers the clusterclick event and zoom\'s if the option is set.
 */
ClusterIcon.prototype.triggerClusterClick = function() {
  var markerClusterer = this.cluster_.getMarkerClusterer();

  // Trigger the clusterclick event.
  google.maps.event.trigger(markerClusterer, \'clusterclick\', this.cluster_);

  if (markerClusterer.isZoomOnClick()) {
    // Zoom into the cluster.
    this.map_.fitBounds(this.cluster_.getBounds());
  }
};

mcOptions =
  maxZoom: 16

markerCluster = new MarkerClusterer map, markers, mcOptions
# listener if a cluster is clicked
google.maps.event.addListener markerCluster, \"clusterclick\", (cluster) ->
  if markerCluster.isZoomOnClick() # default is true
    #get bounds of cluster
    map.fitBounds cluster.getBounds()
    #zoom in to max zoom plus one. 
    map.setZoom markerCluster.getMaxZoom() + 1