Kuesa::SceneEntity *sceneEntity = new Kuesa::SceneEntity();
 Kuesa::TransformTracker *tracker = new Kuesa::TransformTracker();
 Qt3DRender::QCamera *camera = new Qt3DRender::Camera();


 tracker->setSceneEntity(sceneEntity);
 tracker->setName(QStringLiteral("MyTransform");
 tracker->setCamera(camera);
 tracker->setScreenSize({512, 512});

 QObject::connect(tracker, &Kuesa::TransformTracker::screenPositionChanged,
                  this, [this] (const QPointF &screenPosition) {
                     // Reacts to new position
                     ....
                  });

Property Documentation

camera : Qt3DCore::QEntity*

Holds the camera entity from which we should compute the screen position.

Access functions:

Notifier signal:

matrix : QMatrix4x4

Holds the local transformation matrix associated to the tracker's referenced QTransform instance.

Access functions:

Notifier signal:

name : QString

Holds the name of the Qt3DCore::QTransform instance to retrieve from the Kuesa::SceneEntity.

Access functions:

Notifier signal:

rotation : QQuaternion

Holds the local rotation associated to the tracker's referenced QTransform instance.

Access functions:

Notifier signal:

rotationX : float

Holds the local x rotation (euler angle) associated to the tracker's referenced QTransform instance.

Access functions:

Notifier signal:

rotationY : float

Holds the local y rotation (euler angle) associated to the tracker's referenced QTransform instance.

Access functions:

Notifier signal:

rotationZ : float

Holds the local z rotation (euler angle) associated to the tracker's referenced QTransform instance.

Access functions:

Notifier signal:

scale : float

Holds the local uniform scale associated to the tracker's referenced QTransform instance.

Access functions:

Notifier signal:

scale3D : QVector3D

Holds the local 3D scale associated to the tracker's referenced QTransform instance.

Access functions:

Notifier signal:

screenPosition : const QPointF

Holds the 2D screen position computed from the transformation in world space obtained from the tracker's referenced Transform, the camera, the sceneSize and viewportRect.

Access functions:

Notifier signal:

screenSize : QSize

Holds the size of the area within which we should compute screen positions. This would usually be the size of the window or the size of the sub view within the window.

Access functions:

Notifier signal:

translation : QVector3D

Holds the local translation associated to the tracker's referenced QTransform instance.

Access functions:

Notifier signal:

viewportRect : QRectF

Holds the normalized viewport rectangle defining the area into which screen positions should be computed. If unspecified QRectF(0.0f, 0.0f, 1.0f, 1.0f) will be used.

Access functions:

Notifier signal:

worldMatrix : const QMatrix4x4

Holds the world transformation matrix associated to the tracker's referenced QTransform instance.

This property is readonly.

Access functions:

Notifier signal: