adjusting coordinates of markers with identical coordinates

adjust coordinates

// add this inside your loop - looping over your marker locations 

    var coordinates_hash = new Array();
    var coordinates_str, actual_lat, actual_lon, adjusted_lat, adjusted_lon;

         actual_lat = adjusted_lat = this.locations[i].latitude;
         actual_lon = adjusted_lon = this.locations[i].longitude;
         coordinates_str = actual_lat + actual_lon;
         while (coordinates_hash[coordinates_str] != null) {
          // adjust coord by 50m or so
          adjusted_lat = parseFloat(actual_lat) + (Math.random() -.5) / 750;
          adjusted_lon = parseFloat(actual_lon) + (Math.random() -.5) / 750;
          coordinates_str = String(adjusted_lat) + String(adjusted_lon);
         }
         coordinates_hash[coordinates_str] = 1;

         var myLatLng = new google.maps.LatLng(adjusted_lat, adjusted_lon);

Simply a "life-saver"...

Though have to be honest that I appeared dumb enough not to Goggle possible solution(s) and code it from scratch.

glad it's helpful. check out the gmaps4rails gem, it has this feature built-in along with many others

Great solution!
Thanks!