1 #ifndef ALIPHOSTRACKSEGMENTMAKERV1_H
2 #define ALIPHOSTRACKSEGMENTMAKERV1_H
3 /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * See cxx source for full Copyright notice */
8 //_________________________________________________________________________
9 // Implementation version 1 of algorithm class to construct PHOS track segments
10 // Associates EMC and PPSD clusters
11 // Unfolds the EMC cluster
13 //*-- Author: Dmitri Peressounko (RRC Ki & SUBATECH)
15 // --- ROOT system ---
17 // --- Standard library ---
19 // --- AliRoot header files ---
21 #include "TObjArray.h"
22 #include "AliPHOSClusterizer.h"
23 #include "AliPHOSEmcRecPoint.h"
24 #include "AliPHOSPpsdRecPoint.h"
25 #include "AliPHOSTrackSegmentMaker.h"
28 class AliPHOSTrackSegmentMakerv1 : public AliPHOSTrackSegmentMaker {
32 AliPHOSTrackSegmentMakerv1() ;
33 virtual ~ AliPHOSTrackSegmentMakerv1() ; // dtor
35 Bool_t FindFit(AliPHOSEmcRecPoint * emcRP, int * MaxAt, Float_t * maxAtEnergy,
36 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
40 Float_t GetDistanceInPHOSPlane(AliPHOSEmcRecPoint * EmcClu , AliPHOSPpsdRecPoint * Ppsd , Bool_t & TooFar ) ; // see R0
42 void MakeLinks(TObjArray * EmcRecPoints, TObjArray * PpsdRecPointsUp, TObjArray * PpsdRecPointsLow,
43 TClonesArray * LinkLowArray, TClonesArray *LinkUpArray) ; //Evaluates distances(links) between EMC and PPSD
44 void MakePairs(TObjArray * EmcRecPoints, TObjArray * PpsdRecPointsUp, TObjArray * PpsdRecPointsLow,
45 TClonesArray * LinkLowArray, TClonesArray * LinkUpArray, TrackSegmentsList * trsl) ;
46 //Finds pairs(triplets) with smallest link
47 void MakeTrackSegments(DigitsList * DL, RecPointsList * emcl, RecPointsList * ppsdl, TrackSegmentsList * trsl ) ; // does the job
48 virtual void SetMaxEmcPpsdDistance(Float_t r){ fR0 = r ;}
49 virtual void SetUnfoldFlag() { fUnfoldFlag = kTRUE ; } ;
50 static Double_t ShowerShape(Double_t r) ; // Shape of shower used in unfolding; class member function (not object member function)
51 void UnfoldClusters(DigitsList * DL, RecPointsList * emcIn, AliPHOSEmcRecPoint * iniEmc, Int_t Nmax,
52 int * maxAt, Float_t * maxAtEnergy, TObjArray * emclist) ; //Unfolds overlaping clusters using TMinuit package
53 virtual void UnsetUnfoldFlag() { fUnfoldFlag = kFALSE ; }
57 Float_t fDelta ; // parameter used for sorting
58 TMinuit * fMinuit ; // Minuit object needed by cluster unfolding
59 Float_t fR0 ; // Maximum distance between a EMC RecPoint and a PPSD RecPoint
60 Bool_t fUnfoldFlag ; // Directive to unfold or not the clusters in case of multiple maxima
62 ClassDef( AliPHOSTrackSegmentMakerv1,1) // Implementation version 1 of algorithm class to make PHOS track segments
66 #endif // AliPHOSTRACKSEGMENTMAKERV1_H