对于谷歌地图项目,我将所有标记加载到一个数组中,以便在将所有标记放在地图上之后将其用于 MarkerClusterer。显示了所有标记,但 MarkerClusterer 未聚类。调试后我发现数组是空的,但我不知道为什么。
var matLocation = null;
var markers = [];
//setup the makers
function loadMarkers()
{
//load array with markers
startLoadingMarkers();
//add markercluster to page so we markers will get clustered
var markerCluster = new MarkerClusterer(map, markers);
markerCluster.maxZoom_ = 14;
//More stuff
}
/*
* Load the markers from the source
*/
function startLoadingMarkers()
{
//empty markers
for(i in markers)
{
var marker = markers[i];
marker.setMap(null);
}
markers = [];
$.get( 'load some marker source', function(data) {
matLocation = jQuery.parseJSON(data);
LoadMarker(1);
});
}
/*
* Load the marker one by one
*/
function LoadMarker(nextIndex)
{
if(nextIndex < matLocation.locations.length){
var arrItem = matLocation.locations[nextIndex];
//Put the marker on the map (all working fine)
//add to array
markers.push(marker);
//go to next
LoadMarker((nextIndex + 1));
}
//ARRAY IS STILL FILLED HERE
}
该数组在每次迭代时填充,并且在所有迭代结束时都有内容。但是当我想启动 MarkerClusterer 时,标记数组是空的并且没有内容。
有谁知道这里发生了什么?