Line data    Source code

       1             : #ifndef ALIPHOSTRACKSEGMENTMAKERV2_H
       2             : #define ALIPHOSTRACKSEGMENTMAKERV2_H
       3             : /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
       4             :  * See cxx source for full Copyright notice                               */
       5             : 
       6             : /* $Id$ */
       7             : /* History of cvs commits:
       8             :  *
       9             :  * $Log$
      10             :  * Revision 1.3  2007/04/25 19:39:42  kharlov
      11             :  * Track extracpolation improved
      12             :  *
      13             :  * Revision 1.2  2007/04/01 19:16:52  kharlov
      14             :  * D.P.: Produce EMCTrackSegments using TPC/ITS tracks (no CPV)
      15             :  *
      16             :  * Revision 1.50  2007/03/06 06:54:48  kharlov
      17             :  * DP:Calculation of cluster properties dep. on vertex added
      18             :  *
      19             :  * Revision 1.49  2007/02/01 13:59:11  hristov
      20             :  * Forward declaration
      21             :  *
      22             :  * Revision 1.48  2006/08/28 10:01:56  kharlov
      23             :  * Effective C++ warnings fixed (Timur Pocheptsov)
      24             :  *
      25             :  * Revision 1.47  2005/11/17 12:35:27  hristov
      26             :  * Use references instead of objects. Avoid to create objects when they are not really needed
      27             :  *
      28             :  * Revision 1.46  2005/05/28 14:19:05  schutz
      29             :  * Compilation warnings fixed by T.P.
      30             :  *
      31             :  */
      32             : 
      33             : //_________________________________________________________________________
      34             : // Implementation version 1 of algorithm class to construct PHOS track segments
      35             : // Associates EMC and CPV lusters
      36             : // Unfolds the EMC cluster   
      37             : //                  
      38             : //*-- Author: Dmitri Peressounko (RRC Ki & SUBATECH)
      39             : #include <vector>
      40             : 
      41             : // --- ROOT system ---
      42             : #include <TVector3.h>
      43             : 
      44             : // --- Standard library ---
      45             : 
      46             : // --- AliRoot header files ---
      47             : #include "AliPHOSTrackSegmentMaker.h"
      48             : 
      49             : class AliPHOSEmcRecPoint ;
      50             : class AliPHOSCpvRecPoint ;
      51             : class AliESDtrack ;
      52             : class TClonesArray;
      53             : 
      54             : class  AliPHOSTrackSegmentMakerv2 : public AliPHOSTrackSegmentMaker {
      55             : 
      56             : public:
      57             : 
      58             :   AliPHOSTrackSegmentMakerv2() ;                     
      59             :   AliPHOSTrackSegmentMakerv2(AliPHOSGeometry *geom);
      60             :   AliPHOSTrackSegmentMakerv2(const AliPHOSTrackSegmentMakerv2 & tsm);
      61             : 
      62             :   virtual ~ AliPHOSTrackSegmentMakerv2() ; // dtor
      63             :   
      64             :   virtual void   Clusters2TrackSegments(Option_t *option); // Does the job
      65             :           void   FillOneModule() ;       // Finds range in which RecPoints belonging current PHOS module are
      66             : 
      67             :           void   MakeLinks() ;           //Evaluates distances(links) between EMC and CPV
      68             :           void   MakePairs() ;           //Finds pairs(triplets) with smallest link
      69             :   virtual void   Print(const Option_t * = "") const ;
      70             :   //Switch to "on flyght" mode, without writing to TreeR and file  
      71           0 :   void SetWriting(Bool_t toWrite = kFALSE){fWrite = toWrite;} 
      72           0 :   virtual void   SetMaxTPCDistance(Float_t r){ fRtpc = r ;} //Maximal distance 
      73             :                                                                //between EMCrp and extrapolation of TPC track
      74           0 :  virtual const char * Version() const { return "tsm-v2" ; }  
      75             : 
      76             :   AliPHOSTrackSegmentMakerv2 & operator = (const AliPHOSTrackSegmentMakerv2 & )  {
      77             :     // assignement operator requested by coding convention but not needed
      78           0 :     Fatal("operator =", "not implemented") ;
      79           0 :     return *this ; 
      80             :   }
      81             : 
      82           0 :   virtual TClonesArray * GetTrackSegments() const { return fTrackSegments; }
      83             : 
      84             : private:
      85             : 
      86             :   void  GetDistanceInPHOSPlane(AliPHOSEmcRecPoint * EmcClu , AliESDtrack* track,
      87             :                                Float_t &dx, Float_t &dz ) const ; // see R0
      88             :   void    Init() ;
      89             :   void    InitParameters() ;
      90             :   void    PrintTrackSegments(Option_t *option) ;
      91             : 
      92             : protected: 
      93             :   struct TrackInPHOS_t {
      94             :      AliESDtrack* track ;
      95             :      Float_t      x ; //Raw X intersection coordinate
      96             :      Float_t      z ; //Raw Z intersection coordinate
      97             :   } ;
      98             : 
      99             : private:  
     100             : 
     101             :   Bool_t  fDefaultInit;               //! Says if the task was created by defaut ctor (only parameters are initialized)
     102             :   Bool_t  fWrite ;                   // Write Tracks to TreeT  
     103             :  
     104             :   Int_t fNTrackSegments ; // number of track segments found 
     105             : 
     106             :   Float_t fRtpc ;        // Maximum distance between a EMC RecPoint and extrapolation of a TPC track   
     107             :   
     108             :   TVector3 fVtx ;        //! Vertex in current position
     109             : 
     110             :   TClonesArray * fLinkUpArray  ;  //!
     111             :   std::vector<TrackInPHOS_t> fTPCtracks[5];  //!
     112             :   Int_t fNtpcTracks[5] ;  //!
     113             :   Int_t fEmcFirst;     //! Index of first EMC RecPoint belonging to currect PHOS module
     114             :   Int_t fEmcLast ;     //!
     115             :   Int_t fModule ;      //! number of module being processed
     116             : 
     117             :   TClonesArray * fTrackSegments; // Array with found track-segments
     118             : 
     119          20 :   ClassDef( AliPHOSTrackSegmentMakerv2,2)  // Implementation version 1 of algorithm class to make PHOS track segments 
     120             : 
     121             :  };
     122             : 
     123             : #endif // AliPHOSTRACKSEGMENTMAKERV2_H