More than one marker on same place - MarkerClusterer

问题

I am using MarkerClusterer. When I have two or more markers on the exact same spot, The API only displays 1 marker - the top one. But somehow I want to show all the markers as each one will be opening distinct popup. I have searched found few solutions but none are seem to be working Anybody had similar issue and would pls share a solution??

回答1:

Finally got it working. This is for all those who still haven't found a solution. Below code adds offset to the markers on same location:

In your createMarker function add this code:

//get array of markers currently in cluster
var allMarkers = namespace.mapParams.mapMarkersArray;

//final position for marker, could be updated if another marker already exists in same position
var finalLatLng = latlng;

//check to see if any of the existing markers match the latlng of the new marker
if (allMarkers.length != 0) {
    for (i=0; i < allMarkers.length; i++) {
        var existingMarker = allMarkers[i];
        var pos = existingMarker.getPosition();

        //if a marker already exists in the same position as this marker
        if (latlng.equals(pos)) {
            //update the position of the coincident marker by applying a small multipler to its coordinates
            var newLat = latlng.lat() + (Math.random() -.5) / 1500;// * (Math.random() * (max - min) + min);
            var newLng = latlng.lng() + (Math.random() -.5) / 1500;// * (Math.random() * (max - min) + min);
            finalLatLng = new google.maps.LatLng(newLat,newLng);
        }
    }
}

~~Refer this~~

Now update your google.maps.Marker object for each marker with new position value – finalLatLng.

var marker = new google.maps.Marker({
    map: msf_namespace.mapParams.resultmap,
    position: finalLatLng,
    title: name,
    icon: markericon
});

//add each generated marker to mapMarkersArray
namespace.mapParams.mapMarkersArray.push(marker);

回答2:

FYI - Precision

decimal places  decimal degrees N/S or E/W at equator
2   0.01    1.1132 km
3   0.001   111.32 m
4   0.0001  11.132 m
5   0.00001 1.1132 m

来源：https://stackoverflow.com/questions/20490654/more-than-one-marker-on-same-place-markerclusterer

标签

google-maps

google-maps-api-3

markerclusterer