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),fQ(0),fErrQ(-1),fX(0),fErrX(-1),fY(0),fErrY(-1),fChi2(-1),fDigs(0) {} //empty ctor
  25
  26
  27       AliHMPIDCluster(const AliHMPIDCluster &c):AliCluster3D(c),
  28                         fCh(c.fCh),fSi(c.fSi),fSt(c.fSt),fBox(c.fBox),fNlocMax(c.fNlocMax),fMaxQpad(c.fMaxQpad),fMaxQ(c.fMaxQ),fQRaw(c.fQRaw),
  29                         fQ (c.fQ ),fErrQ(c.fErrQ),
  30                         fX (c.fX ),fErrX(c.fErrX),
  31                         fY (c.fY ),fErrY(c.fErrY),fChi2(c.fChi2),fDigs(0)                  {}//copy ctor
  32    virtual ~AliHMPIDCluster();//dtor   {if(fDigs) delete fDigs; fDigs=0;}
  33 //framework part
  34          void           Draw   (Option_t *opt=""                                  );                       //overloaded TObject::Print() to draw cluster in current canvas
  35          void           Print  (Option_t *opt=""                                  )const;                  //overloaded TObject::Print() to print cluster info
  36   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
  37 //private part
  38          Int_t          Box      (                                         )const{return fBox;                                  }  //Dimension of the cluster
  39          void           CoG      (                                         );                                                      //calculates center of gravity
  40          void           CorrSin  (                                         );                                                      //sinoidal correction
  41          Int_t          Ch       (                                         )const{return fCh;                                    } //chamber number
  42   inline void           DigAdd   (AliHMPIDDigit *pDig                      );                                                      //add new digit ot the cluster
  43          AliHMPIDDigit* Dig      (Int_t i                                  )const{return (AliHMPIDDigit*)fDigs->At(i);           } //pointer to i-th digi
  44   inline Bool_t         IsInPc   ();                                                                                               //check if is in the current PC
  45   inline void           Reset    (                                         );                                                      //cleans the cluster
  46   void           SetClusterParams(Double_t xL,Double_t yL,Int_t iCh  );                                                            //Set AliCluster3D part
  47          Int_t          Size     (                                         )const{return fSi;                                    } //returns number of pads in formed cluster
  48          Int_t          Solve    (TClonesArray *pCluLst,Bool_t isUnfold    );                                                      //solve cluster: MINUIT fit or CoG
  49          Int_t          Status   (                                         ) const{return fSt;}                                    //Status of cluster
  50          Double_t       QRaw     (                                         )const{return fQRaw;                                  } //raw cluster charge in QDC channels
  51          Double_t       Q        (                                         )const{return fQ;                                     } //given cluster charge in QDC channels
  52          Double_t       Qe       (                                         )const{return fErrQ;                                  } //Error in cluster charge in QDC channels
  53          Double_t       X        (                                         )const{return fX;                                     } //cluster x position in LRS
  54          Double_t       Xe       (                                         )const{return fErrX;                                  } //cluster charge in QDC channels
  55          Double_t       Y        (                                         )const{return fY;                                     } //cluster y position in LRS
  56          Double_t       Ye       (                                         )const{return fErrY;                                  } //cluster charge in QDC channels
  57          Double_t       Chi2     (                                         )const{return fChi2;                                  } //chi2 of the fit
  58          void           DoCorrSin(Bool_t doCorrSin                         ){fgDoCorrSin=doCorrSin;}                                // Set sinoidal correction
  59          void           SetX     (Double_t x                               ){fX=x;}                                                // Setter
  60          void           SetY     (Double_t y                               ){fY=y;}                                                // Setter
  61
  62 private:
  63 /*
  64   AliHMPIDCluster &operator=(const AliHMPIDCluster &c) {if(this == &c)return *this;AliCluster3D::operator=(c);
  65                                                        fSi=c.fSi;  fSt=c.fSt; fCh=c.fCh; fBox=c.fBox;fNlocMax=c.fNlocMax;fMaxQpad=c.fMaxQpad; fMaxQ=c.fMaxQ;fQRaw=c.fQRaw;
  66                                                         fQ=c.fQ; fErrQ=c.fErrQ;
  67                                                         fX=c.fX; fErrX=c.fErrX;
  68                                                         fY=c.fY; fErrY=c.fErrY; fChi2=c.fChi2;fDigs=c.fDigs ? new TObjArray(*c.fDigs):0; return *this;}
  69 */
  70 protected:
  71   Int_t         fCh;          //chamber number
  72   Int_t         fSi;          //size of the formed cluster from which this cluster deduced
  73   Int_t         fSt;          //flag to mark the quality of the cluster
  74   Int_t         fBox;         //box contaning this cluster
  75   Int_t         fNlocMax;     //number of local maxima in formed cluster
  76   Int_t         fMaxQpad;     //abs pad number of a pad with the highest charge
  77   Double_t      fMaxQ;        //that max charge value
  78   Double_t      fQRaw;        //QDC value of the raw cluster
  79   Double_t      fQ;           //QDC value of the actual cluster
  80   Double_t      fErrQ;        //error on Q
  81   Double_t      fX;           //local x postion, [cm]
  82   Double_t      fErrX;        //error on x postion, [cm]
  83   Double_t      fY;           //local y postion, [cm]
  84   Double_t      fErrY;        //error on y postion, [cm]
  85   Double_t      fChi2;        //some estimator of the fit quality
  86   TObjArray    *fDigs;        //! list of digits forming this cluster
  87   static  Bool_t fgDoCorrSin; //flag to switch on/off correction for Sinusoidal to cluster reco
  88   ClassDef(AliHMPIDCluster,7) //HMPID cluster class
  89 };
  90
  91 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
  92 void AliHMPIDCluster::DigAdd(AliHMPIDDigit *pDig)
  93 {
  94 // Adds a given digit to the list of digits belonging to this cluster, cluster is not owner of digits
  95 // Arguments: pDig - pointer to digit to be added
  96 // Returns: none
  97   if(!fDigs) {fSi=0;fDigs = new TObjArray;} //create list of digits in the first invocation
  98   fDigs->Add(pDig);
  99   fSt=kFrm;
 100   fSi++;
 101 }
 102 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 103 void AliHMPIDCluster::Reset()
 104 {
 105   //
 106   //
 107   //
 108   if(fDigs) delete fDigs;
 109   fDigs=0;
 110   fSt=kEmp;
 111   fQRaw=fQ=0;
 112   fX=fY=0;
 113   fCh=fSi=fBox=fNlocMax=fMaxQpad=-1;
 114   fMaxQ=fErrQ=fErrX=fErrY=fChi2=-1; //empty ctor
 115 }
 116 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 117 Bool_t AliHMPIDCluster::IsInPc()
 118 {
 119   //Check if (X,Y) position is inside the PC limits
 120   //Arguments:
 121   //  Returns: True or False
 122   Int_t pc = ((AliHMPIDDigit*)fDigs->At(0))->Pc();
 123
 124
 125   if ( fX < AliHMPIDParam::MinPcX(pc) || fX > AliHMPIDParam::MaxPcX(pc) ||
 126        fY < AliHMPIDParam::MinPcY(pc) || fY > AliHMPIDParam::MaxPcY(pc) ) return kFALSE;
 127
 128   return kTRUE;
 129
 130 }
 131
 132 #endif