orbittransformcontroller.h Example File

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 #ifndef ORBITTRANSFORMCONTROLLER_H
 #define ORBITTRANSFORMCONTROLLER_H

 #include <QObject>
 #include <QMatrix4x4>

 namespace Qt3DCore {
 class QTransform;
 }

 class OrbitTransformController : public QObject
 {
     Q_OBJECT
     Q_PROPERTY(Qt3DCore::QTransform* target READ target WRITE setTarget NOTIFY targetChanged)
     Q_PROPERTY(float radius READ radius WRITE setRadius NOTIFY radiusChanged)
     Q_PROPERTY(float angle READ angle WRITE setAngle NOTIFY angleChanged)

 public:
     OrbitTransformController(QObject *parent = 0);

     void setTarget(Qt3DCore::QTransform *target);
     Qt3DCore::QTransform *target() const;

     void setRadius(float radius);
     float radius() const;

     void setAngle(float angle);
     float angle() const;

 signals:
     void targetChanged();
     void radiusChanged();
     void angleChanged();

 protected:
     void updateMatrix();

 private:
     Qt3DCore::QTransform *m_target;
     QMatrix4x4 m_matrix;
     float m_radius;
     float m_angle;
 };


 #endif // ORBITTRANSFORMCONTROLLER_H