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[u/mrichter/AliRoot.git] / 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,kBig,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,Int_t *pSigmaCut, 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          void           SetSize  (Int_t size                               ){fSi=size;}                                            // Setter
65          void           FindClusterSize(Int_t i,Int_t *pSigmaCut);                                                                 //Find the clusterSize of deconvoluted clusters 
66          
67 protected:
68   Int_t         fCh;          //chamber number
69   Int_t         fSi;          //size of the formed cluster from which this cluster deduced
70   Int_t         fSt;          //flag to mark the quality of the cluster
71   Int_t         fBox;         //box contaning this cluster
72   Int_t         fNlocMax;     //number of local maxima in formed cluster
73   Int_t         fMaxQpad;     //abs pad number of a pad with the highest charge
74   Double_t      fMaxQ;        //that max charge value
75   Double_t      fQRaw;        //QDC value of the raw cluster
76   Double_t      fQ;           //QDC value of the actual cluster
77   Double_t      fErrQ;        //error on Q
78   Double_t      fXX;           //local x postion, [cm]
79   Double_t      fErrX;        //error on x postion, [cm]
80   Double_t      fYY;           //local y postion, [cm]
81   Double_t      fErrY;        //error on y postion, [cm]
82   Double_t      fChi2;        //some estimator of the fit quality
83   TObjArray    *fDigs;        //! list of digits forming this cluster
84   static  Bool_t fgDoCorrSin; //flag to switch on/off correction for Sinusoidal to cluster reco
85   AliHMPIDParam *fParam;      //!Pointer to AliHMPIDParam
86   
87 private:
88 /*
89   AliHMPIDCluster &operator=(const AliHMPIDCluster &c) {if(this == &c)return *this;AliCluster3D::operator=(c);          
90                                                        fSi=c.fSi;  fSt=c.fSt; fCh=c.fCh; fBox=c.fBox;fNlocMax=c.fNlocMax;fMaxQpad=c.fMaxQpad; fMaxQ=c.fMaxQ;fQRaw=c.fQRaw;
91                                                         fQ=c.fQ; fErrQ=c.fErrQ; 
92                                                         fXX=c.fXX; fErrX=c.fErrX;
93                                                         fYY=c.fYY; fErrY=c.fErrY; fChi2=c.fChi2;fDigs=c.fDigs ? new TObjArray(*c.fDigs):0; return *this;}
94 */
95 //  AliHMPIDCluster(const AliHMPIDCluster& c);              //dummy copy constructor
96   AliHMPIDCluster &operator=(const AliHMPIDCluster& c);   //dummy assignment operator
97       
98   
99   ClassDef(AliHMPIDCluster,9) //HMPID cluster class
100 };
101
102 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
103 void AliHMPIDCluster::DigAdd(AliHMPIDDigit *pDig)
104 {
105 // Adds a given digit to the list of digits belonging to this cluster, cluster is not owner of digits
106 // Arguments: pDig - pointer to digit to be added  
107 // Returns: none  
108   if(!fDigs) {fSi=0;fDigs = new TObjArray;} //create list of digits in the first invocation
109   fDigs->Add(pDig);
110   fSt=kFrm;
111   fSi++;
112 }
113 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
114 void AliHMPIDCluster::Reset()
115 {
116   //
117   //
118   //
119   if(fDigs) delete fDigs; 
120   fDigs=0; 
121   fSt=kEmp;
122   fQRaw=fQ=0;
123   fXX=fYY=0;
124   fCh=fSi=fBox=fNlocMax=fMaxQpad=-1;
125   fMaxQ=fErrQ=fErrX=fErrY=fChi2=-1; //empty ctor
126 }
127 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
128 Bool_t AliHMPIDCluster::IsInPc()
129 {
130   //Check if (X,Y) position is inside the PC limits
131   //Arguments:
132   //  Returns: True or False
133   Int_t pc = ((AliHMPIDDigit*)fDigs->At(0))->Pc();
134  
135   
136   if ( fXX < AliHMPIDParam::MinPcX(pc) || fXX > AliHMPIDParam::MaxPcX(pc) || 
137        fYY < AliHMPIDParam::MinPcY(pc) || fYY > AliHMPIDParam::MaxPcY(pc) ) return kFALSE;
138   
139   return kTRUE;
140   
141 }
142
143 #endif