帶有批處理數據的Google地圖集群，具有放大或縮小時間

Question

//This is the code//
var mapDiv = document.getElementById('newmap');
map = new google.maps.Map(mapDiv, {
        center: new google.maps.LatLng(latitude, longitude),
        zoom: zoom,
        panControl: true,
        mapTypeControl: true,
        mapTypeControlOptions: {
        style: google.maps.MapTypeControlStyle.DROPDOWN_MENU
        },
        zoomControl: true,
        zoomControlOptions:
         {
          position: google.maps.ControlPosition.LEFT_TOP,

         },
        streetViewControl: true,
        mapTypeId: google.maps.MapTypeId.ROADMAP
    });
var new_arr=new Array();
function addMarker1(locations,outletname,outletData)
{
           var markers1 = locations.map(function(location, i)
            {
                 return new google.maps.Marker
                  ({
                      position: location,
                  });
            });
var markerCluster = new MarkerClusterer(map, new_arr,{imagePath: 'https://developers.google.com/maps/documentation/javascript/examples/markerclusterer/m'});
              new_arr=new_arr.concat(markers1);
              markerCluster.resetViewport();
              markerCluster.clearMarkers();
              markers = [];
              markerCluster.removeMarker(new_arr);
              markerCluster.addMarkers(new_arr);
              markerCluster.redraw();
}
// this is sending location in patches of 10000 each//
addMarker1(j,outletname,outletData);

需要渲染的總數據為100000。我以10000的補丁發送數據，並對其進行匯總以顯示最終正常工作的100000個標記的單個群集。 但是在放大后，當我單擊縮小時，它會在每個zoom_changed事件上再次形成每個10000的補丁，並通過形成每個10000的簇而不是形成一個單獨的簇來重疊。

Answer 1

解決方案是在遍歷標記之前清除數據

            if (markerCluster) 
            {
                  markerCluster.clearMarkers();
                  markerCluster.resetViewport();
                  markers = [];
                  markerCluster.removeMarker(new_arr);
            }