Question

I tried to search the answer from docs, but couldn’t find..

How can I enable clustering in Gmaps4rails when I add markers on the map via AJAX. My view has this:

<%= gmaps( map_options: { zoom: 15, auto_adjust: false } ) %>

and in my javascript I add the markers like this:

     $.getJSON(path, { lat: lat, lng: lng, user_lat: user_lat, user_lng: user_lng }, function(markers_json) {
        Gmaps.map.replaceMarkers(markers_json); 
     });

I’d just like to set the do_clustering option to true, but because I don’t have markers json in the map gmaps() call, I can’t add the markers options either.

Answer 1

Tell gmaps4rails directly:

Gmaps.map.markers_conf.do_clustering = true;

And include this script:

<script type="text/javascript" src="http://google-maps-utility-library-v3.googlecode.com/svn/tags/markerclustererplus/2.0.9/src/markerclusterer_packed.js"></script>