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