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1 | #ifndef AliHMPIDReconHTA_h | |
2 | #define AliHMPIDReconHTA_h | |
3 | ||
4 | /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
5 | * See cxx source for full Copyright notice */ | |
6 | ||
7 | ////////////////////////////////////////////////////////////////////////// | |
8 | // // | |
9 | // AliHMPIDReconHTA // | |
10 | // // | |
11 | // HMPID class to perfom pattern recognition based on Hough transfrom // | |
12 | // // | |
13 | ////////////////////////////////////////////////////////////////////////// | |
14 | ||
15 | ||
16 | #include <TTask.h> //base class | |
17 | ||
18 | class TClonesArray; //CkovAngle() | |
19 | class AliESDtrack; //CkovAngle() | |
20 | class AliHMPIDParam;//General pourpose | |
21 | ||
22 | class AliHMPIDReconHTA : public TTask | |
23 | { | |
24 | public : | |
25 | AliHMPIDReconHTA(); | |
26 | virtual ~AliHMPIDReconHTA(); | |
27 | ||
28 | // HTA hidden track algorithm | |
29 | void InitVars (Int_t n); //init space for variables | |
30 | void DeleteVars ()const; //delete variables | |
31 | void InitDatabase (); //initialization of database | |
32 | void FindBinDB (Double_t x,Double_t y,Int_t &binX,Int_t &binY); //find indices of DB | |
33 | Bool_t UniformDistrib (); //to check isotropy in phi Cerenkov | |
34 | void FillZeroChan ()const; //complete the DB | |
35 | Bool_t CkovHiddenTrk (AliESDtrack *pTrk,TClonesArray *pClu,Int_t index, Double_t nmean); //Pattern recognition without trackinf information | |
36 | Bool_t CluPreFilter (TClonesArray *pClu ); //Pre clustering filter to cut bkg clusters | |
37 | Bool_t DoRecHiddenTrk ( ); //Calling to the fitted procedures | |
38 | Bool_t FindShape (Double_t &thTrkRec,Double_t &phiTrkRec,Double_t &thetaCRec); //Find shape of the ring | |
39 | Bool_t ShapeModel (Int_t np,Double_t *phiphot,Double_t *dist,Double_t &xA,Double_t &xB,Double_t &phiStart);//initial shape model for the cluster candidates | |
40 | Double_t VertParab (Double_t x1,Double_t y1,Double_t x2, Double_t y2, Double_t x3, Double_t y3)const;//calculate the coord. of the min. for a parabole for 3 points | |
41 | Bool_t FitFree (Double_t thTrkRec,Double_t phiTrkRec); //Fit (th,ph) of the track and ckovFit as result | |
42 | Bool_t FitRing (Double_t thTrkRec,Double_t phiTrkRec); //Fit (th,ph) of the track | |
43 | Double_t FindSimmPhi (); //find phi of the ring with min. dist. algorithm | |
44 | Int_t r2 (Double_t *coef, Double_t &x1, Double_t &x2); // solution of 2nd degree equation | |
45 | void SetNClu (Int_t nclu ) {fNClu=nclu;} //Setter for # of clusters | |
46 | void SetClCk (Int_t i,Bool_t what ) {fClCk[i]=what;} //Setter for cluster flags | |
47 | void SetCkovFit (Double_t ckov ) {fCkovFit=ckov;} //Setter for ckov fitted | |
48 | void SetCkovSig2 (Double_t rms ) {fCkovSig2=rms;} //Setter for sigma2 ckov fitted | |
49 | void SetTrkFit (Double_t th,Double_t ph ) {fThTrkFit = th;fPhTrkFit = ph;}//Setter for (th,ph) of the track | |
50 | void SetNCluFit (Int_t ncluFit ) {fNCluFit=ncluFit;} //Setter for # of clusters used in the fit | |
51 | void SetPhotAngles (Int_t i,Double_t th, Double_t ph ) {fPhiPhot[i]=ph;fThetaPhot[i]=th;} //Setter of the Cerenkov angles for a given photon | |
52 | void SetFitStatus (Bool_t status ) {fFitStatus = status;} //Setter for fit status | |
53 | void SetRadXY (Double_t x,Double_t y ) {fRadX = x;fRadY = y;} //Setter for (th,ph) of the track | |
54 | static void FunMinPhot(Int_t&/* */,Double_t* /* */,Double_t &f,Double_t *par,Int_t iflag); //Fit function to minimize thetaCer RMS/Sqrt(n) of n clusters | |
55 | Int_t CompactDB (Int_t binX,Int_t binY) const {return fgDB[binX][binY];} //find compact word of DB | |
56 | Int_t IdxMip ()const {return fIdxMip;} //Getter index of MIP | |
57 | Double_t MipX ()const {return fMipX;} //Getter of x MIP in LORS | |
58 | Double_t MipY ()const {return fMipY;} //Getter of y MIP in LORS | |
59 | Double_t MipQ ()const {return fMipQ;} //Getter of Q MIP | |
60 | Double_t RadX ()const {return fRadX;} //Getter of x at RAD in LORS | |
61 | Double_t RadY ()const {return fRadY;} //Getter of y at RAD in LORS | |
62 | Int_t NClu ()const {return fNClu;} //Getter of cluster multiplicity | |
63 | Int_t NCluFit ()const {return fNCluFit;} //Getter of n. photons used to fit the ring | |
64 | Double_t XClu (Int_t i)const {return fXClu[i];} //Getter of x clu | |
65 | Double_t YClu (Int_t i)const {return fYClu[i];} //Getter of y clu | |
66 | Bool_t ClCk (Int_t i)const {return fClCk[i];} //Getter of cluster flags | |
67 | Double_t PhotPhi (Int_t i)const {return fPhiPhot[i];} //Getter of the Phi Cerenkov angle for a given photon | |
68 | Double_t PhotTheta (Int_t i)const {return fThetaPhot[i];} //Getter of the Theta Cerenkov angle for a given photon | |
69 | Bool_t FitStatus ()const {return fFitStatus;} //Getter of status of the fit | |
70 | Double_t CkovFit ()const {return fCkovFit;} //Getter of ckov angle fitted | |
71 | Double_t ThTrkIn ()const {return fThTrkIn;} //Getter of theta started of the track | |
72 | Double_t PhTrkIn ()const {return fPhTrkIn;} //Getter of phi started of the track | |
73 | Double_t ThTrkFit ()const {return fThTrkFit;} //Getter of theta fitted of the track | |
74 | Double_t PhTrkFit ()const {return fPhTrkFit;} //Getter of phi fitted of the track | |
75 | // | |
76 | protected: | |
77 | // | |
78 | Double_t fMipX; //mip X position for Hidden Track Algorithm | |
79 | Double_t fMipY; //mip Y position for Hidden Track Algorithm | |
80 | Double_t fMipQ; //mip Q for Hidden Track Algorithm | |
81 | Double_t fRadX; //rad X position for Hidden Track Algorithm | |
82 | Double_t fRadY; //rad Y position for Hidden Track Algorithm | |
83 | Int_t fIdxMip; //mip index in the clus list | |
84 | Int_t fNClu; //n clusters to fit | |
85 | Double_t *fXClu; //container for x clus position | |
86 | Double_t *fYClu; //container for y clus position | |
87 | Double_t *fPhiPhot; //container for phi clus | |
88 | Double_t *fThetaPhot; //container for theta Cerenkov clus | |
89 | Bool_t *fClCk; //flag if cluster is used in fitting | |
90 | Double_t fThTrkIn; //theta started from ShapeModel | |
91 | Double_t fPhTrkIn; //phi started from ShapeModel | |
92 | Double_t fThTrkFit; //theta fitted of the track | |
93 | Double_t fPhTrkFit; //phi fitted of the track | |
94 | Double_t fCkovFit; //estimated ring Cherenkov angle | |
95 | Int_t fNCluFit; //n clusters used to fit the ring | |
96 | Double_t fCkovSig2; //estimated error^2 on ring Cherenkov angle | |
97 | Bool_t fFitStatus; //status of the fit 0=ok 1=still to be optimized | |
98 | ||
99 | AliHMPIDParam *fParam; //Pointer to AliHMPIDParam | |
100 | static Int_t fgDB[500][150]; //tmp DB | |
101 | // | |
102 | private: | |
103 | AliHMPIDReconHTA(const AliHMPIDReconHTA& r); //dummy copy constructor | |
104 | AliHMPIDReconHTA &operator=(const AliHMPIDReconHTA& r); //dummy assignment operator | |
105 | // | |
106 | ClassDef(AliHMPIDReconHTA,4) | |
107 | }; | |
108 | ||
109 | #endif // #ifdef AliHMPIDReconHTA_cxx | |
110 |