HMPID/AliHMPIDCluster.h

   1 #ifndef AliHMPIDCluster_h
   2 #define AliHMPIDCluster_h
   3 /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
   4  * See cxx source for full Copyright notice                               */
   5 //
   6 // Implementation class: AliHMPIDCluster
   7 //
   8 //   class to reconstruct clester in HMPID
   9 //   it is forseen to Solve (split) the raw cluster in
  10 //   several clusters (# local maxima in the raw cluster -> deconvolution
  11 //   according to a Mathieson profile of the charge
  12 //
  13 #include "AliGeomManager.h"
  14 #include "AliCluster3D.h"
  15 #include "AliHMPIDDigit.h"  //DigAdd()
  16 #include <TObjArray.h>     //DigAdd()
  17 class TClonesArray;        //Solve()
  18
  19 class AliHMPIDCluster :public AliCluster3D
  20 {
  21 public:
  22   enum EClusterStatus {kFrm,kCoG,kLo1,kUnf,kMax,kNot,kEdg,kSi1,kNoLoc,kAbn,kEmp=-1};      //status flags
  23       AliHMPIDCluster():AliCluster3D(),
  24                           fCh(-1),fSi(-1),fSt(kEmp),fBox(-1),fNlocMax(-1),fMaxQpad(-1),fMaxQ(-1),fQRaw(0),
  25                           fQ(0),fErrQ(-1),fXX(0),fErrX(-1),fYY(0),fErrY(-1),fChi2(-1),fDigs(0),fParam(AliHMPIDParam::Instance())
  26       {
  27       }//ctor
  28
  29
  30       AliHMPIDCluster(const AliHMPIDCluster &c):AliCluster3D(c),
  31                         fCh(c.fCh),fSi(c.fSi),fSt(c.fSt),fBox(c.fBox),fNlocMax(c.fNlocMax),fMaxQpad(c.fMaxQpad),fMaxQ(c.fMaxQ),fQRaw(c.fQRaw),
  32                         fQ (c.fQ ),fErrQ(c.fErrQ),
  33                         fXX (c.fXX ),fErrX(c.fErrX),
  34                         fYY (c.fYY ),fErrY(c.fErrY),fChi2(c.fChi2),fDigs(0),fParam(c.fParam)                  {}//copy ctor
  35    virtual ~AliHMPIDCluster();//dtor   {if(fDigs) delete fDigs; fDigs=0;}
  36 //framework part
  37          void           Draw   (Option_t *opt=""                                  );                       //overloaded TObject::Print() to draw cluster in current canvas
  38          void           Print  (Option_t *opt=""                                  )const;                  //overloaded TObject::Print() to print cluster info
  39   static void           FitFunc(Int_t &iNpars, Double_t* deriv, Double_t &chi2, Double_t *par, Int_t iflag);//fit function to be used by MINUIT
  40 //private part
  41          Int_t          Box      (                                         )const{return fBox;                                  }  //Dimension of the cluster
  42          void           CoG      (                                         );                                                      //calculates center of gravity
  43          void           CorrSin  (                                         );                                                      //sinoidal correction
  44          Int_t          Ch       (                                         )const{return fCh;                                    } //chamber number
  45   inline void           DigAdd   (AliHMPIDDigit *pDig                      );                                                      //add new digit ot the cluster
  46          AliHMPIDDigit* Dig      (Int_t i                                  )const{return (AliHMPIDDigit*)fDigs->At(i);           } //pointer to i-th digi
  47   inline Bool_t         IsInPc   ();                                                                                               //check if is in the current PC
  48   inline void           Reset    (                                         );                                                      //cleans the cluster
  49   void           SetClusterParams(Double_t xL,Double_t yL,Int_t iCh  );                                                            //Set AliCluster3D part
  50          Int_t          Size     (                                         )const{return fSi;                                    } //returns number of pads in formed cluster
  51          Int_t          Solve    (TClonesArray *pCluLst,Bool_t isUnfold    );                                                      //solve cluster: MINUIT fit or CoG
  52          Int_t          Status   (                                         ) const{return fSt;}                                    //Status of cluster
  53          Double_t       QRaw     (                                         )const{return fQRaw;                                  } //raw cluster charge in QDC channels
  54          Double_t       Q        (                                         )const{return fQ;                                     } //given cluster charge in QDC channels
  55          Double_t       Qe       (                                         )const{return fErrQ;                                  } //Error in cluster charge in QDC channels
  56          Double_t       X        (                                         )const{return fXX;                                     } //cluster x position in LRS
  57          Double_t       Xe       (                                         )const{return fErrX;                                  } //cluster charge in QDC channels
  58          Double_t       Y        (                                         )const{return fYY;                                     } //cluster y position in LRS
  59          Double_t       Ye       (                                         )const{return fErrY;                                  } //cluster charge in QDC channels
  60          Double_t       Chi2     (                                         )const{return fChi2;                                  } //chi2 of the fit
  61          void           DoCorrSin(Bool_t doCorrSin                         ){fgDoCorrSin=doCorrSin;}                                // Set sinoidal correction
  62          void           SetX     (Double_t x                               ){fXX=x;}                                                // Setter
  63          void           SetY     (Double_t y                               ){fYY=y;}                                                // Setter
  64
  65 protected:
  66   Int_t         fCh;          //chamber number
  67   Int_t         fSi;          //size of the formed cluster from which this cluster deduced
  68   Int_t         fSt;          //flag to mark the quality of the cluster
  69   Int_t         fBox;         //box contaning this cluster
  70   Int_t         fNlocMax;     //number of local maxima in formed cluster
  71   Int_t         fMaxQpad;     //abs pad number of a pad with the highest charge
  72   Double_t      fMaxQ;        //that max charge value
  73   Double_t      fQRaw;        //QDC value of the raw cluster
  74   Double_t      fQ;           //QDC value of the actual cluster
  75   Double_t      fErrQ;        //error on Q
  76   Double_t      fXX;           //local x postion, [cm]
  77   Double_t      fErrX;        //error on x postion, [cm]
  78   Double_t      fYY;           //local y postion, [cm]
  79   Double_t      fErrY;        //error on y postion, [cm]
  80   Double_t      fChi2;        //some estimator of the fit quality
  81   TObjArray    *fDigs;        //! list of digits forming this cluster
  82   static  Bool_t fgDoCorrSin; //flag to switch on/off correction for Sinusoidal to cluster reco
  83   AliHMPIDParam *fParam;      //!Pointer to AliHMPIDParam
  84
  85 private:
  86 /*
  87   AliHMPIDCluster &operator=(const AliHMPIDCluster &c) {if(this == &c)return *this;AliCluster3D::operator=(c);
  88                                                        fSi=c.fSi;  fSt=c.fSt; fCh=c.fCh; fBox=c.fBox;fNlocMax=c.fNlocMax;fMaxQpad=c.fMaxQpad; fMaxQ=c.fMaxQ;fQRaw=c.fQRaw;
  89                                                         fQ=c.fQ; fErrQ=c.fErrQ;
  90                                                         fXX=c.fXX; fErrX=c.fErrX;
  91                                                         fYY=c.fYY; fErrY=c.fErrY; fChi2=c.fChi2;fDigs=c.fDigs ? new TObjArray(*c.fDigs):0; return *this;}
  92 */
  93 //  AliHMPIDCluster(const AliHMPIDCluster& c);              //dummy copy constructor
  94   AliHMPIDCluster &operator=(const AliHMPIDCluster& c);   //dummy assignment operator
  95
  96
  97   ClassDef(AliHMPIDCluster,9) //HMPID cluster class
  98 };
  99
 100 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 101 void AliHMPIDCluster::DigAdd(AliHMPIDDigit *pDig)
 102 {
 103 // Adds a given digit to the list of digits belonging to this cluster, cluster is not owner of digits
 104 // Arguments: pDig - pointer to digit to be added
 105 // Returns: none
 106   if(!fDigs) {fSi=0;fDigs = new TObjArray;} //create list of digits in the first invocation
 107   fDigs->Add(pDig);
 108   fSt=kFrm;
 109   fSi++;
 110 }
 111 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 112 void AliHMPIDCluster::Reset()
 113 {
 114   //
 115   //
 116   //
 117   if(fDigs) delete fDigs;
 118   fDigs=0;
 119   fSt=kEmp;
 120   fQRaw=fQ=0;
 121   fXX=fYY=0;
 122   fCh=fSi=fBox=fNlocMax=fMaxQpad=-1;
 123   fMaxQ=fErrQ=fErrX=fErrY=fChi2=-1; //empty ctor
 124 }
 125 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 126 Bool_t AliHMPIDCluster::IsInPc()
 127 {
 128   //Check if (X,Y) position is inside the PC limits
 129   //Arguments:
 130   //  Returns: True or False
 131   Int_t pc = ((AliHMPIDDigit*)fDigs->At(0))->Pc();
 132
 133
 134   if ( fXX < AliHMPIDParam::MinPcX(pc) || fXX > AliHMPIDParam::MaxPcX(pc) ||
 135        fYY < AliHMPIDParam::MinPcY(pc) || fYY > AliHMPIDParam::MaxPcY(pc) ) return kFALSE;
 136
 137   return kTRUE;
 138
 139 }
 140
 141 #endif