#ifndef __PNDDRCOPTVOL_H__
#define __PNDDRCOPTVOL_H__

/*! 
  \brief Representation of an optical volume.

  The volume consists out of surfaces. 
*/


class PndDrcOptVol : public PndDrcOptDev
{
 protected:

  //!                                             Optical material.
  PndDrcOptMatAbs*    m_optMat;            


 private:

  /*! \brief Auxiliary function for assignment operator and copy constructor..
    \param d The object to copy.
  */
  void copy(const PndDrcOptVol& d);

 public:

  //!                                             Constructor.
  PndDrcOptVol();                          
  //!                                             Destructor.
  virtual ~PndDrcOptVol();                 

  /*! \brief Virtual copy constructor.
    \return Pointer to new allocated memory.
  */
  PndDrcOptVol* clone() const;


  /*! \brief Copy constructor.
    \param d The object to copy.
  */
  PndDrcOptVol(const PndDrcOptVol& d);

  /*! \brief Assignment operator.
    \param d The object to assign.
  */
  PndDrcOptVol& operator=(const PndDrcOptVol& d);




  // implements pure virtual base class
  void propagate(PndDrcPhoton& ph);
  bool radiator() const {return true;};

  //void transform(const TVector3& shift,const TRotation& rot);

  /*! \brief Set optical material.
    \param mat The material.
  */
  void setOptMaterial(const PndDrcOptMatAbs& mat);
  /*! \brief Optical material.
    \return Pointer to material.
  */
  PndDrcOptMatAbs& optMaterial() const 
    {
      return *m_optMat;
    };



};

#endif