質問編集履歴

コードの修正

2019/01/11 11:20

投稿

fokurofechi719

スコア10

test CHANGED Viewed

File without changes

test CHANGED Viewed

@@ -1,6 +1,4 @@
-swiftでARKitを使って、カメラロールの写真を拡大縮小できるような機能を実装しています。
+swiftでARKitを使って、カメラロールで取得した写真を拡大縮小できるような機能を実装しています。
-２つのオープンソースをつなげているのですが、SCNNodeの型が違う等のエラーが発生しました。
@@ -8,22 +6,12 @@
+UIPinchGestureRecognizerのターゲットを変更し、コード上のエラーは出ず、実装できたのですが、写真を空間上に映し出せても、ピンチするとエラーが発生し、アプリがクラッシュします。
 ```
-エラーメッセージ
-●Cannot convert value of type '(UIImage, SCNVector3) -> SCNNode' to expected argument type 'SCNNode'
-●Value of type '(UIImage, SCNVector3) -> SCNNode' has no member 'scale'
-//createPhotoNodeを使う場所でエラーが発生します。
 該当のソースコード
@@ -44,6 +32,8 @@
     let defaultConfigulation: ARWorldTrackingConfiguration = {
         let configuration = ARWorldTrackingConfiguration()
@@ -62,6 +52,8 @@
     override func viewDidLoad() {
         super.viewDidLoad()
@@ -72,169 +64,229 @@
         sceneView.autoenablesDefaultLighting = true
+        //let configuration = ARWorldTrackingConfiguration()
+        //sceneView.session.run(configuration)
+    }
+    //override func didReceiveMemoryWarning() {
+        //super.didReceiveMemoryWarning()
+    override func viewWillAppear(_ animated: Bool) {
+        super.viewWillAppear(animated)
+        sceneView.session.run(defaultConfigulation)
+    }
+    override func viewWillDisappear(_ animated: Bool) {
+        super.viewWillDisappear(animated)
+        sceneView.session.pause()
+    }
+//ボタンをタップしたら→showUIImagePicker
+    @IBAction func photoButtonTapped(_ sender: Any) {
+        showUIImagePicker()
+    }
+//カメラロールから画像を取得する
+    private func showUIImagePicker() {
+        if UIImagePickerController.isSourceTypeAvailable(.photoLibrary) {
+            let pickerView = UIImagePickerController()
+            pickerView.sourceType = .photoLibrary
+            pickerView.delegate = self
+            pickerView.modalPresentationStyle = .overFullScreen
+            self.present(pickerView, animated: true, completion: nil)
+        }
+    }
+//UIImageをsceneViewに貼る
+//createPhotoNodeで作ったSCNNodeをsceneViewに追加
+    private func setImageToScene(image: UIImage) {
+        if let camera = sceneView.pointOfView {
+            let position = SCNVector3(x: 0, y: 0, z: -0.5)
+            let convertPosition = camera.convertPosition(position, to: nil)
-        sceneView.scene.rootNode.addChildNode(createPhotoNode)//ここでCannot convert value of type '(UIImage, SCNVector3) -> SCNNode' to expected argument type 'SCNNode'発生
+            let node = createPhotoNode(image, position: convertPosition)
+            self.sceneView.scene.rootNode.addChildNode(node)
-        let pinch = UIPinchGestureRecognizer(
+            let pinch = UIPinchGestureRecognizer(
-            target: self,
+                target: node, //ここがおかしいと思われます。。。
-            action: #selector(type(of: self).scenePinchGesture(_:))
+                action: #selector(type(of: self).scenePinchGesture(_:))
+            )
+            pinch.delegate = self
+            sceneView.addGestureRecognizer(pinch)
+        }
+    }
+//SCNNodeを作る
+    private func createPhotoNode(_ image: UIImage, position: SCNVector3) -> SCNNode {
+        let node = SCNNode()
+        let scale: CGFloat = 0.3
+        let geometry = SCNBox(width: image.size.width * scale / image.size.height,
+                              height: scale,
+                              length: 0.00000001,
+                              chamferRadius: 0.0)
+        geometry.firstMaterial?.diffuse.contents = image
+        node.geometry = geometry
+        node.position = position
+        return node
+    }
+//ジェスチャーで呼ばれるメソッドを定義
+    @objc func scenePinchGesture(_ recognizer: UIPinchGestureRecognizer) {
+        if recognizer.state == .began {
+            lastGestureScale = 1
+        }
+        let newGestureScale: Float = Float(recognizer.scale)
+        let diff = newGestureScale - lastGestureScale
+        let createPhotoNode = SCNNode()
+        let currentScale = createPhotoNode.scale
+        createPhotoNode.scale = SCNVector3Make(
+            currentScale.x * (1 + diff),
+            currentScale.y * (1 + diff),
+            currentScale.z * (1 + diff)
         )
-        pinch.delegate = self
-        sceneView.addGestureRecognizer(pinch)
+        lastGestureScale = newGestureScale
-        let configuration = ARWorldTrackingConfiguration()
-        sceneView.session.run(configuration)
-    }
+    }
-    override func didReceiveMemoryWarning() {
-        super.didReceiveMemoryWarning()
-    }
+}
+extension GestureViewController: UIImagePickerControllerDelegate, UINavigationControllerDelegate,
+UIGestureRecognizerDelegate{
+//setImageToSeneにshowUIImagePickerで取得したカメラロールのUIimageを入れる
+    func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info :[UIImagePickerController.InfoKey : Any]) {
-    override func viewWillAppear(_ animated: Bool) {
+        if let image = info[.originalImage] as? UIImage {
-        super.viewWillAppear(animated)
+            setImageToScene(image: image)
-        sceneView.session.run(defaultConfigulation)
-    }
-    override func viewWillDisappear(_ animated: Bool) {
-        super.viewWillDisappear(animated)
-        sceneView.session.pause()
-    }
-    @IBAction func photoButtonTapped(_ sender: Any) {
-        showUIImagePicker()
-    }
-    private func showUIImagePicker() {
-        if UIImagePickerController.isSourceTypeAvailable(.photoLibrary) {
-            let pickerView = UIImagePickerController()
-            pickerView.sourceType = .photoLibrary
-            pickerView.delegate = self
-            pickerView.modalPresentationStyle = .overFullScreen
-            self.present(pickerView, animated: true, completion: nil)
         }
+        picker.dismiss(animated: true, completion: nil)
-    }
+    }
-    private func setImageToScene(image: UIImage) {
+    func imagePickerControllerDidCancel(_ picker: UIImagePickerController) {
-        if let camera = sceneView.pointOfView {
-            let position = SCNVector3(x: 0, y: 0, z: -0.5)
-            let convertPosition = camera.convertPosition(position, to: nil)
+        picker.dismiss(animated: true, completion: nil)
-            let node = createPhotoNode
-            self.sceneView.scene.rootNode.addChildNode(node)//ここでCannot convert value of type '(UIImage, SCNVector3) -> SCNNode' to expected argument type 'SCNNode'発生
-        }
+    }
-    }
-    private func createPhotoNode(_ image: UIImage, position: SCNVector3) -> SCNNode {
+    private func gestureRecognizer(_: UIPinchGestureRecognizer,
-        let node = SCNNode()
-        let scale: CGFloat = 0.3
-        let geometry = SCNBox(width: image.size.width * scale / image.size.height,
+                                   shouldRecognizeSimultaneouslyWith shouldRecogunizeSimultaneouslyWithGestureRecognizer: UIGestureRecognizer) -> Bool{
-                              height: scale,
-                              length: 0.00000001,
-                              chamferRadius: 0.0)
-        geometry.firstMaterial?.diffuse.contents = image
-        node.geometry = geometry
-        node.position = position
-        return node
+        return true
-    }
-    @objc func scenePinchGesture(_ recognizer: UIPinchGestureRecognizer) {
-        if recognizer.state == .began {
-            lastGestureScale = 1
-        }
-        let newGestureScale: Float = Float(recognizer.scale)
-        let diff = newGestureScale - lastGestureScale
-        let currentScale = createPhotoNode.scale
-//ここでValue of type '(UIImage, SCNVector3) -> SCNNode' has no member 'scale'のエラー発生
-        createPhotoNode.scale = SCNVector3Make(
-            currentScale.x * (1 + diff),
-            currentScale.y * (1 + diff),
-            currentScale.z * (1 + diff)
-        )
-        lastGestureScale = newGestureScale
     }
@@ -242,46 +294,6 @@
-extension GestureViewController: UIImagePickerControllerDelegate, UINavigationControllerDelegate,
-UIGestureRecognizerDelegate{
-    func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info :[UIImagePickerController.InfoKey : Any]) {
-        if let image = info[.originalImage] as? UIImage {
-            setImageToScene(image: image)
-        }
-        picker.dismiss(animated: true, completion: nil)
-    }
-    func imagePickerControllerDidCancel(_ picker: UIImagePickerController) {
-        picker.dismiss(animated: true, completion: nil)
-    }
-    private func gestureRecognizer(_: UIPinchGestureRecognizer,
-                                   shouldRecognizeSimultaneouslyWith shouldRecogunizeSimultaneouslyWithGestureRecognizer: UIGestureRecognizer) -> Bool{
-        return true
-    }
-}
 ```
@@ -290,7 +302,7 @@
-対応する型でメソッドを書き換える等
+setImageToSceneのインスタンスをUIPinchGestureRecognizerのターゲットに指定しようとしましたができませんでした。