/* $Id: CbmRichRing.h,v 1.8 2006/09/13 14:51:43 hoehne Exp $*/

/* History of CVS commits:
 *
 * $Log: CbmRichRing.h,v $
 * Revision 1.8  2006/09/13 14:51:43  hoehne
 * two variables (Selection2D, SelectionNN) added in which values between 0 and 1 are stored for fake rejection
 * ReconstructedFlag removed
 *
 * Revision 1.7  2006/08/11 14:03:57  hoehne
 * move SetUncertainty and GetUncertainty to SetChi2 and GetChi2
 *
 * Revision 1.6  2006/07/12 06:27:54  hoehne
 * new functions: SetDistance and GetDistance added which set/ give the distance between ring center and track attached to this
 * ring
 *
 * Revision 1.5  2006/02/23 11:24:10  hoehne
 * RecFlag added (Simeon Lebedev)
 *
 * Revision 1.4  2006/01/23 11:40:13  hoehne
 * MCMotherID added
 *
 * Revision 1.3  2006/01/19 10:36:37  hoehne
 * restructured according to new RingFinder Class
 * array added which contains hits attached to a ring
 *
 *
 */


// -------------------------------------------------------------------------
// -----                     CbmRichRing header file                  -----
// -----   Created 05/07/04  by A. Soloviev <solovjev@cv.jinr.ru>     -----
// -------------------------------------------------------------------------



/**  CbmRichRing.h
 *@author A. Soloviev
 **
 ** Rings in Rich Photodetector
 **/


#ifndef CBM_RICH_RING_H
#define CBM_RICH_RING_H

#include "TObject.h"
#include "CbmRichHit.h"

#include "vector.h"

class CbmRichRing : public TObject {

public:

  /** Default constructor **/
  CbmRichRing();

  /** Constructor with arguments
   *@param x    x Position of ring center [cm]
   *@param y    y Position of ring center [cm]
   *@param r    radius of ring [cm]
   **/
  CbmRichRing ( const Double_t & x, const Double_t & y, const Double_t & r );

  /** Destructor **/
  virtual ~CbmRichRing();

  void AddHit(CbmRichHit*);   /** to attach the rich hit to the ring */
  Int_t GetNoOfHits();        /** to obtain the number of hits associated to the ring */
  CbmRichHit* GetHit(Int_t);  /** to obtain the rich hit at a particular index */


  /** Modifiers**/
  virtual void SetCenterX ( const Double_t & x );
  virtual void SetCenterY ( const Double_t & y );
  virtual void SetRadius ( const Double_t & r );
  virtual void SetTrackID ( Int_t track );
  virtual void SetMCMotherID ( Int_t track );
  virtual void SetDistance (Double_t d);
  virtual void SetChi2 ( const Double_t & chi2 );
  virtual void SetSelection2D (Double_t selection2D );  /** either 0 and 1: 0 = good ring, 1 = bad ring (selection by 2-dimensional cuts)*/
  virtual void SetSelectionNN (Double_t selectionNN );  /** number between 0 and 1: 0 = good ring, 1 = bad ring (selection by neural net)*/
  

  /** Accessors **/
  virtual const Double_t & GetCenterX() const;
  virtual const Double_t & GetCenterY() const;
  virtual const Double_t & GetRadius() const;
  virtual const Int_t GetTrackID() const;
  virtual const Int_t GetMCMotherID() const;
  virtual const Double_t GetDistance() const;
  static const Double_t & GetRadiusMax();
  virtual const Double_t & GetChi2() const;
  virtual const Double_t GetSelection2D() const;
  virtual const Double_t GetSelectionNN() const;

  void SetRecFlag ( Int_t iflag );
  const Int_t GetRecFlag()const;
  

private:

  vector<CbmRichHit*> fHitCollection; /** STL container to hold the hits */

protected:

  Double_t fCenterX;
  Double_t fCenterY;
  Double_t fRadius;

  Int_t fTrackID; /** ID of the matched track, set after track matching */
  Int_t fMCMotherID; /** ID of the MC track */
  
  Double_t fDistance;   /** Distance to track matched to this ring */ 
  Double_t fChi2;
  Double_t fSelection2D;  /** value for selection high quality rings */
  Double_t fSelectionNN;  /** value for selection high quality rings */

  static const Double_t fgkRadiusMax;
  Int_t fIflag;
  
  ClassDef(CbmRichRing,1)
};

#endif // CBM_RICH_RING_H