         return zoomLevel;
     }
     
-    public class func FBCellSizeForZoomScale(zoomScale:MKZoomScale) -> CGFloat {
-        
-        let zoomLevel:Int = FBClusteringManager.FBZoomScaleToZoomLevel(zoomScale)
+    public class func FBCellSizeForZoomLevel(zoomLevel: Int) -> CGFloat {
         
         switch (zoomLevel) {
         case 13:

    
    var lock:NSRecursiveLock = NSRecursiveLock()
    
    public var maxZoomLevel = 1.0
    
    public override init(){
        super.init()

            // less than 13 zoom level
            return 88
        }
    }
    
    public class func FBCellSizeForZoomScale(zoomScale:MKZoomScale) -> CGFloat {
        
        let zoomLevel = FBClusteringManager.FBZoomScaleToZoomLevel(zoomScale)
        return FBClusteringManager.FBCellSizeForZoomLevel(zoomLevel)
    }
}
