[QtAV][Observations] add 2D viewer information for visualization of observations

- visualizing landmarks observations in 3D is now influenced by the 2D viewer

Author: almarouk

meshroom/ui/qml/Viewer/Viewer2D.qml

@@ -28,6 +28,9 @@ FocusScope {
     property bool enable8bitViewer: enable8bitViewerAction.checked
     property bool enableSequencePlayer: enableSequencePlayerAction.checked
 
+    readonly property alias imgContainer: imgContainer
+    readonly property alias imgLayout: imgLayout
+
     QtObject {
         id: m
         property variant viewpointMetadata: {

meshroom/ui/qml/Viewer3D/MediaLibrary.qml

@@ -21,6 +21,8 @@ Entity {
     property Layer frontLayerComponent
     property var window
 
+    property var viewer2DInfo: null
+
     /// Camera to consider for positioning
     property Camera camera: null
 
@@ -225,6 +227,7 @@ Entity {
                 camera: root.camera
                 renderMode: root.renderMode
                 enabled: visible
+                viewer2DInfo: root.viewer2DInfo
 
                 // QObject.destroyed signal is not accessible
                 // Use the object as NodeInstantiator model to be notified of its deletion

meshroom/ui/qml/Viewer3D/MediaLoader.qml

@@ -20,6 +20,8 @@ import Utils 1.0
     property var object: null
     property int renderMode
 
+    property var viewer2DInfo: null
+
     /// Scene's current camera
     property Camera camera: null
 
@@ -91,6 +93,7 @@ import Utils 1.0
                                                'pointSize': Qt.binding(function() { return 0.01 * Viewer3DSettings.pointSize }),
                                                'locatorScale': Qt.binding(function() { return Viewer3DSettings.cameraScale }),
                                                'viewId': Qt.binding(function() { return _reconstruction.selectedViewId }),
+                                               'viewer2DInfo': Qt.binding(function() {return root.viewer2DInfo}),
                                                'cameraPickingEnabled': Qt.binding(function() { return root.enabled })
                                            });
 

meshroom/ui/qml/Viewer3D/Viewer3D.qml

@@ -29,6 +29,8 @@ FocusScope {
     readonly property var viewpoint: _reconstruction ? _reconstruction.selectedViewpoint : null
     readonly property bool doSyncViewpointCamera: Viewer3DSettings.syncViewpointCamera && (viewpoint && viewpoint.isReconstructed)
 
+    property alias viewer2DInfo: mediaLibrary.viewer2DInfo
+
     // functions
     function resetCameraPosition() {
         mainCamera.position = defaultCamPosition;

meshroom/ui/qml/WorkspaceView.qml

@@ -206,6 +206,14 @@ Item {
                     Viewer3D {
                         id: c_viewer3D
 
+                        viewer2DInfo: {
+                            "x": viewer2D.imgContainer.x,
+                            "y": viewer2D.imgContainer.y,
+                            "width": viewer2D.imgLayout.width,
+                            "height": viewer2D.imgLayout.height,
+                            "scale": viewer2D.imgContainer.scale
+                        }
+
                         Layout.fillWidth: true
                         Layout.fillHeight: true
                         Layout.minimumWidth: 20