Enable updatePosition, updateRotation and updateScale of existing Nodes

android/src/main/kotlin/com/difrancescogianmarco/arcore_flutter_plugin/ArCoreView.kt

@@ -16,11 +16,15 @@ import com.difrancescogianmarco.arcore_flutter_plugin.flutter_models.FlutterArCo
 import com.difrancescogianmarco.arcore_flutter_plugin.flutter_models.FlutterArCorePose
 import com.difrancescogianmarco.arcore_flutter_plugin.models.RotatingNode
 import com.difrancescogianmarco.arcore_flutter_plugin.utils.ArCoreUtils
+import com.difrancescogianmarco.arcore_flutter_plugin.utils.DecodableUtils.Companion.parseVector3
+import com.difrancescogianmarco.arcore_flutter_plugin.utils.DecodableUtils.Companion.parseQuaternion
 import com.google.ar.core.*
 import com.google.ar.core.exceptions.CameraNotAvailableException
 import com.google.ar.core.exceptions.UnavailableException
 import com.google.ar.core.exceptions.UnavailableUserDeclinedInstallationException
 import com.google.ar.sceneform.*
+import com.google.ar.sceneform.math.Quaternion
+import com.google.ar.sceneform.math.Vector3
 import com.google.ar.sceneform.rendering.ModelRenderable
 import com.google.ar.sceneform.rendering.Texture
 import com.google.ar.sceneform.ux.AugmentedFaceNode
@@ -30,6 +34,7 @@ import io.flutter.plugin.common.MethodCall
 import io.flutter.plugin.common.MethodChannel
 import io.flutter.plugin.platform.PlatformView
 
+
 class ArCoreView(val activity: Activity, context: Context, messenger: BinaryMessenger, id: Int, private val isAugmentedFaces: Boolean, private val debug: Boolean) : PlatformView, MethodChannel.MethodCallHandler {
     private val methodChannel: MethodChannel = MethodChannel(messenger, "arcore_flutter_plugin_$id")
     //       private val activity: Activity = (context.applicationContext as FlutterApplication).currentActivity
@@ -181,6 +186,17 @@ class ArCoreView(val activity: Activity, context: Context, messenger: BinaryMess
             }
             "positionChanged" -> {
                 debugLog(" positionChanged")
+                updatePosition(call, result)
+
+            }
+            "scaleChanged" -> {
+                debugLog(" scaleChanged")
+                updateScale(call, result)
+            }
+
+            "nodeRotationChanged" -> {
+                debugLog(" nodeRotationChanged")
+                updateNodeRotation(call, result)
 
             }
             "rotationChanged" -> {
@@ -221,6 +237,26 @@ class ArCoreView(val activity: Activity, context: Context, messenger: BinaryMess
             }
         }
     }
+    fun updateScale(call: MethodCall, result: MethodChannel.Result) {
+        val name = call.argument<String>("name")
+        val node = arSceneView?.scene?.findByName(name)
+        node?.localScale = parseVector3(call.arguments as HashMap<String, Any>) ?: Vector3(1.0F, 1.0F, 1.0F)
+        result.success(null)
+    }
+
+    fun updatePosition(call: MethodCall, result: MethodChannel.Result) {
+        val name = call.argument<String>("name")
+        val node = arSceneView?.scene?.findByName(name)
+        node?.localPosition = parseVector3(call.arguments as HashMap<String, Any>)?: Vector3()
+        result.success(null)
+    }
+
+    fun updateNodeRotation(call: MethodCall, result: MethodChannel.Result) {
+        val name = call.argument<String>("name")
+        val node = arSceneView?.scene?.findByName(name)
+        node?.localRotation = parseQuaternion(call.arguments as? HashMap<String, Double>) ?: Quaternion()
+        result.success(null)
+    }
 
 /*    fun maybeEnableArButton() {
         Log.i(TAG,"maybeEnableArButton" )
@@ -556,11 +592,4 @@ class ArCoreView(val activity: Activity, context: Context, messenger: BinaryMess
         }
 
     }*/
-
-    /*    fun updatePosition(call: MethodCall, result: MethodChannel.Result) {
-        val name = call.argument<String>("name")
-        val node = arSceneView?.scene?.findByName(name)
-        node?.localPosition = parseVector3(call.arguments as HashMap<String, Any>)
-        result.success(null)
-    }*/
 }

example/pubspec.lock

@@ -166,3 +166,4 @@ packages:
 sdks:
   dart: ">=2.12.0-0.0 <3.0.0"
   flutter: ">=1.10.0"
+

lib/src/arcore_controller.dart

@@ -32,19 +32,19 @@ class ArCoreController {
     return arcoreInstalled;
   }
 
-  ArCoreController(
-      {int id,
-      this.enableTapRecognizer,
-      this.enablePlaneRenderer,
-      this.enableUpdateListener,
-      this.debug = false
+  ArCoreController({this.id,
+    this.enableTapRecognizer,
+    this.enablePlaneRenderer,
+    this.enableUpdateListener,
+    this.debug = false
 //    @required this.onUnsupported,
-      }) {
+  }) {
     _channel = MethodChannel('arcore_flutter_plugin_$id');
     _channel.setMethodCallHandler(_handleMethodCalls);
     init();
   }
 
+  final int id;
   final bool enableUpdateListener;
   final bool enableTapRecognizer;
   final bool enablePlaneRenderer;
@@ -105,7 +105,7 @@ class ArCoreController {
         }
         break;
       case 'getTrackingState':
-        // TRACKING, PAUSED or STOPPED
+      // TRACKING, PAUSED or STOPPED
         trackingState = call.arguments;
         if (debug) {
           print('Latest tracking state received is: $trackingState');
@@ -116,7 +116,7 @@ class ArCoreController {
           print('flutter onTrackingImage');
         }
         final arCoreAugmentedImage =
-            ArCoreAugmentedImage.fromMap(call.arguments);
+        ArCoreAugmentedImage.fromMap(call.arguments);
         onTrackingImage(arCoreAugmentedImage);
         break;
       case 'togglePlaneRenderer':
@@ -190,13 +190,25 @@ class ArCoreController {
 
   void _addListeners(ArCoreNode node) {
     node.position.addListener(() => _handlePositionChanged(node));
+    node.rotation.addListener(() => _handleNodeRotationChanged(node));
+    node.scale.addListener(() => _handleScaleChanged(node));
     node?.shape?.materials?.addListener(() => _updateMaterials(node));
 
     if (node is ArCoreRotatingNode) {
       node.degreesPerSecond.addListener(() => _handleRotationChanged(node));
     }
   }
 
+  void _handleNodeRotationChanged(ArCoreNode node) {
+    _channel.invokeMethod<void>('nodeRotationChanged',
+        _getHandlerParams(node, convertVector4ToMap(node.rotation.value)));
+  }
+
+  void _handleScaleChanged(ArCoreNode node) {
+    _channel.invokeMethod<void>('scaleChanged',
+        _getHandlerParams(node, convertVector3ToMap(node.scale.value)));
+  }
+
   void _handlePositionChanged(ArCoreNode node) {
     _channel.invokeMethod<void>('positionChanged',
         _getHandlerParams(node, convertVector3ToMap(node.position.value)));
@@ -212,8 +224,8 @@ class ArCoreController {
         'updateMaterials', _getHandlerParams(node, node.shape.toMap()));
   }
 
-  Map<String, dynamic> _getHandlerParams(
-      ArCoreNode node, Map<String, dynamic> params) {
+  Map<String, dynamic> _getHandlerParams(ArCoreNode node,
+      Map<String, dynamic> params) {
     final Map<String, dynamic> values = <String, dynamic>{'name': node.name}
       ..addAll(params);
     return values;