 
     @IBAction func flyoverBtnTapped(sender: UIButton) {
         
-        // shown
         if mapView.showsCompass {
             sender.setTitle("Hide Compass", forState: UIControlState.Normal)
-        }
-            // hidden
-        else {
+        } else {
             sender.setTitle("Show Compass", forState: UIControlState.Normal)
         }
     }

        
        switch sender.selectedSegmentIndex {
        case 1:
            mapView.mapType = MKMapType.SatelliteFlyover
        case 2:
            mapView.mapType = MKMapType.HybridFlyover
        default:
            mapView.mapType = MKMapType.Standard
        }
        
        setupMapCamera()

    }

    private func updateCompassBtn() {
        // shown
        if mapView.showsCompass {
            compassBtn.setTitle("Hide Compass", forState: UIControlState.Normal)
