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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 |
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17 | |
| 18 | class TClonesArray; //CkovAngle() |
| 19 | class AliESDtrack; //CkovAngle() |
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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 |
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30 | void DeleteVars ()const; //delete variables |
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31 | void InitDatabase (); //initialization of database |
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32 | void FindBinDB (Double_t x,Double_t y,Int_t &binX,Int_t &binY); //find indices of DB |
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33 | void FillZeroChan ()const; //complete the DB |
| 34 | Bool_t CkovHiddenTrk (AliESDtrack *pTrk,TClonesArray *pClu,Int_t index, Double_t nmean); //Pattern recognition without trackinf information |
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35 | Bool_t CluPreFilter (TClonesArray *pClu ); //Pre clustering filter to cut bkg clusters |
| 36 | Bool_t DoRecHiddenTrk ( ); //Calling to the fitted procedures |
| 37 | Bool_t FindShape (Double_t &thTrkRec,Double_t &phiTrkRec,Double_t &thetaCRec); //Find shape of the ring |
| 38 | 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 |
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39 | 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 |
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40 | Bool_t FitFree (Double_t thTrkRec,Double_t phiTrkRec); //Fit (th,ph) of the track and ckovFit as result |
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41 | Double_t FindSimmPhi (); //find phi of the ring with min. dist. algorithm |
| 42 | Int_t r2 (Double_t *coef, Double_t &x1, Double_t &x2); // solution of 2nd degree equation |
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43 | void SetNClu (Int_t nclu ) {fNClu=nclu;} //Setter for # of clusters |
| 44 | void SetClCk (Int_t i,Bool_t what ) {fClCk[i]=what;} //Setter for cluster flags |
| 45 | void SetCkovFit (Double_t ckov ) {fCkovFit=ckov;} //Setter for ckov fitted |
| 46 | void SetCkovSig2 (Double_t rms ) {fCkovSig2=rms;} //Setter for sigma2 ckov fitted |
| 47 | void SetTrkFit (Double_t th,Double_t ph ) {fThTrkFit = th;fPhTrkFit = ph;}//Setter for (th,ph) of the track |
| 48 | void SetRadXY (Double_t x,Double_t y ) {fRadX = x;fRadY = y;} //Setter for (th,ph) of the track |
| 49 | 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 |
| 50 | Int_t IdxMip ()const {return fIdxMip;} //Getter index of MIP |
| 51 | Double_t MipX ()const {return fMipX;} //Getter of x MIP in LORS |
| 52 | Double_t MipY ()const {return fMipY;} //Getter of y MIP in LORS |
| 53 | Double_t MipQ ()const {return fMipQ;} //Getter of Q MIP |
| 54 | Double_t RadX ()const {return fRadX;} //Getter of x at RAD in LORS |
| 55 | Double_t RadY ()const {return fRadY;} //Getter of y at RAD in LORS |
| 56 | Int_t NClu ()const {return fNClu;} //Getter of cluster multiplicity |
| 57 | Double_t XClu (Int_t i)const {return fXClu[i];} //Getter of x clu |
| 58 | Double_t YClu (Int_t i)const {return fYClu[i];} //Getter of y clu |
| 59 | Bool_t ClCk (Int_t i)const {return fClCk[i];} //Getter of cluster flags |
| 60 | Double_t CkovFit ()const {return fCkovFit;} //Getter of ckov angle fitted |
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61 | Double_t ThTrkIn ()const {return fThTrkIn;} //Getter of theta started of the track |
| 62 | Double_t PhTrkIn ()const {return fPhTrkIn;} //Getter of phi started of the track |
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63 | Double_t ThTrkFit ()const {return fThTrkFit;} //Getter of theta fitted of the track |
| 64 | Double_t PhTrkFit ()const {return fPhTrkFit;} //Getter of phi fitted of the track |
| 65 | // |
| 66 | protected: |
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67 | // |
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68 | Double_t fMipX; //mip X position for Hidden Track Algorithm |
| 69 | Double_t fMipY; //mip Y position for Hidden Track Algorithm |
| 70 | Double_t fMipQ; //mip Q for Hidden Track Algorithm |
| 71 | Double_t fRadX; //rad X position for Hidden Track Algorithm |
| 72 | Double_t fRadY; //rad Y position for Hidden Track Algorithm |
| 73 | Int_t fIdxMip; //mip index in the clus list |
| 74 | Int_t fNClu; //n clusters to fit |
| 75 | Double_t *fXClu; //container for x clus position |
| 76 | Double_t *fYClu; //container for y clus position |
| 77 | Bool_t *fClCk; //flag if cluster is used in fitting |
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78 | Double_t fThTrkIn; //theta started from ShapeModel |
| 79 | Double_t fPhTrkIn; //phi started from ShapeModel |
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80 | Double_t fThTrkFit; //theta fitted of the track |
| 81 | Double_t fPhTrkFit; //phi fitted of the track |
| 82 | Double_t fCkovFit; //estimated ring Cherenkov angle |
| 83 | Double_t fCkovSig2; //estimated error^2 on ring Cherenkov angle |
| 84 | |
| 85 | AliHMPIDParam *fParam; //Pointer to AliHMPIDParam |
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86 | static Int_t fgDB[500][150]; //tmp DB |
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87 | // |
| 88 | private: |
| 89 | AliHMPIDReconHTA(const AliHMPIDReconHTA& r); //dummy copy constructor |
| 90 | AliHMPIDReconHTA &operator=(const AliHMPIDReconHTA& r); //dummy assignment operator |
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91 | // |
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92 | ClassDef(AliHMPIDReconHTA,3) |
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93 | }; |
| 94 | |
| 95 | #endif // #ifdef AliHMPIDReconHTA_cxx |
| 96 | |
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