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[u/mrichter/AliRoot.git] / PHOS / AliPHOSTrackSegmentMakerv1.h
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d15a28e7 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 */
5
6///////////////////////////////////////////////////
7// Track Segment Maker class for PHOS //
8// Version SUBATECH //
9// Author Dmitri Peressounko RRC Ki //
10// comment: finds pairs of clusters EMC+PPSD //
11// performs unfolding. //
12///////////////////////////////////////////////////
13
14// --- ROOT system ---
15
16// --- Standard library ---
17
18// --- AliRoot header files ---
19
20#include "TObjArray.h"
21#include "AliPHOSClusterizer.h"
22#include "AliPHOSEmcRecPoint.h"
23#include "AliPHOSPpsdRecPoint.h"
24#include "AliPHOSTrackSegmentMaker.h"
25
26
27class AliPHOSTrackSegmentMakerv1 : public AliPHOSTrackSegmentMaker {
28
29public:
30
31 AliPHOSTrackSegmentMakerv1() ;
32 virtual ~ AliPHOSTrackSegmentMakerv1(){} // dtor
33
34 Bool_t FindFit(AliPHOSEmcRecPoint * emcRP, int * MaxAt, Float_t * maxAtEnergy,
35 Int_t NPar, Float_t * FitParametres) ; //Used in UnfoldClusters, calls TMinuit
36
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
41 Float_t GetDistanceInPHOSPlane(AliPHOSEmcRecPoint * EmcClu , AliPHOSPpsdRecPoint * Ppsd , Bool_t & TooFar ) ; // see R0
42
43 void MakeLinks(TObjArray * EmcRecPoints, TObjArray * PpsdRecPointsUp, TObjArray * PpsdRecPointsLow,
44 TClonesArray * LinkLowArray, TClonesArray *LinkUpArray) ; //Evaluates distances(links) between EMC and PPSD
45
46 void MakePairs(TObjArray * EmcRecPoints, TObjArray * PpsdRecPointsUp, TObjArray * PpsdRecPointsLow,
47 TClonesArray * LinkLowArray, TClonesArray * LinkUpArray, TrackSegmentsList * trsl) ;
48 //Finds pairs(triplets) with smallest link
49
50 void MakeTrackSegments(DigitsList * DL, RecPointsList * emcl, RecPointsList * ppsdl, TrackSegmentsList * trsl ) ; // does the job
51
52 void SetMaxEmcPpsdDistance(Float_t r){ fR0 = r ;} //Radius within which we look for ppsd cluster
53
54 Double_t ShowerShape(Double_t r) ; //Shape of shower used in unfolding
55
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 packadge
58
59 void static UnfoldingChiSquare(Int_t &NPar, Double_t *Grad, Double_t & fret, Double_t *x, Int_t iflag); //used in TMinuit
60
61
62private:
63
64 Float_t fDelta ; // parameter used for sorting
65 Float_t fR0 ; // Maximal distance between EMC and PPSD clusters of one Track Segment in module plane
66
67public:
68
69ClassDef( AliPHOSTrackSegmentMakerv1,1) // track segment maker implementation , version 1
70
71};
72
73#endif // AliPHOSSUBTRACKERV1_H