 
 //    var session: ARSession!
 
+    var text: String?
+
     private var requests = [VNRequest]()
     var screenCenter: CGPoint?
-    var textNode: SCNNode?
 
     @IBOutlet var sceneView: ARSCNView!
     

        
        // Create a session configuration
        let configuration = ARWorldTrackingSessionConfiguration()
        configuration.planeDetection = .horizontal
        
        // Run the view's session
        sceneView.session.run(configuration)
    }


        // coreML vision
        setupVision()

        sceneView.addGestureRecognizer(UITapGestureRecognizer(target: self, action: #selector(self.handleTag(gestureRecognizer:))))
    }
    
    override func viewWillAppear(_ animated: Bool) {
