+++ /dev/null
-#ifndef AliHMPIDRecon_h
-#define AliHMPIDRecon_h
-
-/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
- * See cxx source for full Copyright notice */
-
-//////////////////////////////////////////////////////////////////////////
-// //
-// AliHMPIDRecon //
-// //
-// HMPID class to perfom pattern recognition based on Hough transfrom //
-// //
-//////////////////////////////////////////////////////////////////////////
-
-
-#include <TNamed.h> //base class
-#include <TVector3.h> //fields
-
-class TClonesArray; //CkovAngle()
-class AliESDtrack; //CkovAngle()
-class AliHMPIDParam;//general pourpose
-
-class AliHMPIDRecon : public TNamed
-{
-public :
- AliHMPIDRecon();
- virtual ~AliHMPIDRecon() {;} //dtor
-
- void InitVars (Int_t n); //init space for variables
- void DeleteVars ()const; //delete variables
- void CkovAngle (AliESDtrack *pTrk,TClonesArray *pCluLst,Int_t index,Double_t nmean,Float_t xRa,Float_t yRa );//reconstructed Theta Cerenkov
- Bool_t FindPhotCkov (Double_t cluX,Double_t cluY,Double_t &thetaCer,Double_t &phiCer ); //find ckov angle for single photon candidate
- Double_t FindRingCkov (Int_t iNclus ); //best ckov for ring formed by found photon candidates
- void FindRingGeom (Double_t ckovAng,Int_t level=1 ); //estimated area of ring in cm^2 and portion accepted by geometry
- TVector2 IntWithEdge (TVector2 p1,TVector2 p2 )const;//find intercection between plane and lines of 2 thetaC
- Int_t FlagPhot (Double_t ckov,TClonesArray *pCluLst,AliESDtrack *pTrk ); //is photon ckov near most probable track ckov
- Double_t HoughResponse( ); //most probable track ckov angle
- void Propagate (const TVector3 dir, TVector3 &pos,Double_t z )const;//propagate photon alogn the line
- void Refract ( TVector3 &dir, Double_t n1, Double_t n2)const;//refract photon on the boundary
- TVector2 TracePhot (Double_t ckovTh,Double_t ckovPh )const;//trace photon created by track to PC
- void AddObjectToFriends(TClonesArray *pCluLst, Int_t photonIndex, AliESDtrack *pTrk ); // Add AliHMPIDCluster object to ESD friends
- TVector2 TraceForward (TVector3 dirCkov )const;//tracing forward a photon from (x,y) to PC
- void Lors2Trs (TVector3 dirCkov,Double_t &thetaCer,Double_t &phiCer )const;//LORS to TRS
- void Trs2Lors (TVector3 dirCkov,Double_t &thetaCer,Double_t &phiCer )const;//TRS to LORS
- TVector2 GetMip ( )const
- {return fMipPos;} //mip coordinates
- Double_t GetRingArea ( )const
- {return fRingArea;} //area of the current ring in cm^2
- Double_t GetRingAcc ( )const
- {return fRingAcc;} //portion of the ring ([0,1]) accepted by geometry.To scale n. of photons
- Double_t FindRingExt (Double_t ckov,Int_t ch,Double_t xPc,Double_t yPc,Double_t thRa,Double_t phRa);//find ring acceptance by external parameters
- void SetTrack (Double_t xRad,Double_t yRad,Double_t theta,Double_t phi )
- {fTrkDir.SetMagThetaPhi(1,theta,phi); fTrkPos.Set(xRad,yRad);} //set track parameter at RAD
- void SetImpPC (Double_t xPc,Double_t yPc )
- {fPc.Set(xPc,yPc);} //set track impact to PC
- void SetMip (Double_t xmip,Double_t ymip )
- {fMipPos.Set(xmip,ymip);} //set track impact to PC
- enum ETrackingFlags {kNotPerformed=-20,kMipDistCut=-9,kMipQdcCut=-5,kNoPhotAccept=-11,kNoRad = -22};
-//
-protected:
- Int_t fPhotCnt; // counter of photons candidate
- Int_t *fPhotFlag; // flags of photon candidates
- Int_t *fPhotClusIndex; // cluster index of photon candidates
- Double_t *fPhotCkov; // Ckov angles of photon candidates, [rad]
- Double_t *fPhotPhi; // phis of photons candidates, [rad]
- Double_t *fPhotWei; // weigths of photon candidates
- Double_t fCkovSigma2; // sigma2 of the reconstructed ring
-
- Bool_t fIsWEIGHT; // flag to consider weight procedure
- Float_t fDTheta; // Step for sliding window
- Float_t fWindowWidth; // Hough width of sliding window
-
- Double_t fRingArea; // area of a given ring
- Double_t fRingAcc; // fraction of the ring accepted by geometry
- TVector3 fTrkDir; // track direction in LORS at RAD
- TVector2 fTrkPos; // track positon in LORS at RAD
- TVector2 fMipPos; // mip positon for a given track
- TVector2 fPc; // track position at PC
-
- AliHMPIDParam *fParam; // Pointer to AliHMPIDParam
-
-private:
- AliHMPIDRecon(const AliHMPIDRecon& r); //dummy copy constructor
- AliHMPIDRecon &operator=(const AliHMPIDRecon& r); //dummy assignment operator
-//
- ClassDef(AliHMPIDRecon,3)
-};
-
-#endif // #ifdef AliHMPIDRecon_cxx
-
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