/**
* \file CbmRichRingTrackAssignClosestD.h
*
* \brief Ring-Track Assignment according to the closest distance criterion.
*
* \author Claudia Hoehne and Semen Lebedev
* \date 2007
**/

#ifndef CBM_RICH_RING_TRACK_ASSIGN_CLOSEST_D
#define CBM_RICH_RING_TRACK_ASSIGN_CLOSEST_D

#include "CbmRichRingTrackAssignBase.h"

class TClonesArray;

/**
* \class CbmRichRingTrackAssignClosestD
*
* \brief Ring-Track Assignment according to the closest distance criterion.
*
* \author Claudia Hoehne and Semen Lebedev
* \date 2007
**/
class CbmRichRingTrackAssignClosestD : public CbmRichRingTrackAssignBase
{
public:

  /**
   * \brief Default constructor.
   */
	CbmRichRingTrackAssignClosestD();

	/**
	 * \brief Destructor.
	 */
	virtual ~CbmRichRingTrackAssignClosestD();

	/**
	 * \brief Inherited from CbmRichRingTrackAssignBase.
	 */
	void Init();

	/**
	 * \brief Inherited from CbmRichRingTrackAssignBase.
	 */
	void DoAssign(
	      TClonesArray* rings,
	      TClonesArray* richProj);

private:
	TClonesArray* fGlobalTracks;
	TClonesArray* fTrdTracks;

	double fTrdAnnCut; // ANN cut for electron identification in TRD
	bool fUseTrd; // if true electron identification in TRD will be performed

   /**
    * \brief Check if global track was identified as electron in the TRD detector.
    * \param[in] iTrack Index of global track.
    * \return true if track is identified as electron, else return false.
    */
   bool IsTrdElectron(
         int iTrack);

  /**
   * \brief Copy constructor.
   */
	CbmRichRingTrackAssignClosestD(const CbmRichRingTrackAssignClosestD&);

  /**
   * \brief Assignment operator.
   */
	CbmRichRingTrackAssignClosestD& operator=(const CbmRichRingTrackAssignClosestD&);
};

#endif