1 #ifndef ALIPHOSSUBTRACKERV1_H
2 #define ALIPHOSSUBTRACKERV1_H
3 /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * See cxx source for full Copyright notice */
6 ///////////////////////////////////////////////////
7 // Track Segment Maker class for PHOS //
9 // Author Dmitri Peressounko RRC Ki //
10 // comment: finds pairs of clusters EMC+PPSD //
11 // performs unfolding. //
12 ///////////////////////////////////////////////////
14 // --- ROOT system ---
16 // --- Standard library ---
18 // --- AliRoot header files ---
20 #include "TObjArray.h"
21 #include "AliPHOSClusterizer.h"
22 #include "AliPHOSEmcRecPoint.h"
23 #include "AliPHOSPpsdRecPoint.h"
24 #include "AliPHOSTrackSegmentMaker.h"
27 class AliPHOSTrackSegmentMakerv1 : public AliPHOSTrackSegmentMaker {
31 AliPHOSTrackSegmentMakerv1() ;
32 virtual ~ AliPHOSTrackSegmentMakerv1() ; // dtor
34 Bool_t FindFit(AliPHOSEmcRecPoint * emcRP, int * MaxAt, Float_t * maxAtEnergy,
35 Int_t NPar, Float_t * FitParametres) ; //Used in UnfoldClusters, calls TMinuit
37 void FillOneModule(DigitsList * Dl, RecPointsList * emcIn, TObjArray * emcOut, RecPointsList * ppsdIn,
38 TObjArray * ppsdOutUp, TObjArray * ppsdOutLow, Int_t &PHOSModule, Int_t & emcStopedAt,
39 Int_t & ppsdStopedAt) ; // Unfolds clusters and fills temporary arrais
41 Float_t GetDistanceInPHOSPlane(AliPHOSEmcRecPoint * EmcClu , AliPHOSPpsdRecPoint * Ppsd , Bool_t & TooFar ) ; // see R0
43 void MakeLinks(TObjArray * EmcRecPoints, TObjArray * PpsdRecPointsUp, TObjArray * PpsdRecPointsLow,
44 TClonesArray * LinkLowArray, TClonesArray *LinkUpArray) ; //Evaluates distances(links) between EMC and PPSD
46 void MakePairs(TObjArray * EmcRecPoints, TObjArray * PpsdRecPointsUp, TObjArray * PpsdRecPointsLow,
47 TClonesArray * LinkLowArray, TClonesArray * LinkUpArray, TrackSegmentsList * trsl) ;
48 //Finds pairs(triplets) with smallest link
50 void MakeTrackSegments(DigitsList * DL, RecPointsList * emcl, RecPointsList * ppsdl, TrackSegmentsList * trsl ) ; // does the job
52 void SetMaxEmcPpsdDistance(Float_t r){ fR0 = r ;} //Radius within which we look for ppsd cluster
54 static Double_t ShowerShape(Double_t r) ; // Shape of shower used in unfolding; class member function (not object member function)
56 void UnfoldClusters(DigitsList * DL, RecPointsList * emcIn, AliPHOSEmcRecPoint * iniEmc, Int_t Nmax,
57 int * maxAt, Float_t * maxAtEnergy, TObjArray * emclist) ; //Unfolds overlaping clusters using TMinuit package
61 Float_t fDelta ; // parameter used for sorting
62 Float_t fR0 ; // Maximal distance between EMC and PPSD clusters of one Track Segment in module plane
63 TMinuit * fMinuit ; // Minuit object needed by cluster unfolding
67 ClassDef( AliPHOSTrackSegmentMakerv1,1) // track segment maker implementation , version 1
71 #endif // AliPHOSSUBTRACKERV1_H