1 #ifndef ALIMUONEVENTRECONSTRUCTOR_H
2 #define ALIMUONEVENTRECONSTRUCTOR_H
3 /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * See cxx source for full Copyright notice */
11 class AliMUONHitForRec;
17 // Constants which should be elsewhere ????
18 const Int_t kMaxMuonTrackingChambers = 10;
19 const Int_t kMaxMuonTrackingStations = kMaxMuonTrackingChambers / 2;
21 class AliMUONEventReconstructor : public TObject {
24 AliMUONEventReconstructor(void); // Constructor
25 virtual ~AliMUONEventReconstructor(void); // Destructor
26 AliMUONEventReconstructor (const AliMUONEventReconstructor& Reconstructor); // copy constructor
27 AliMUONEventReconstructor& operator=(const AliMUONEventReconstructor& Reconstructor); // assignment operator
29 // Parameters for event reconstruction: public methods
30 // Get and Set, Set to defaults
31 Double_t GetMinBendingMomentum(void) {return fMinBendingMomentum;}
32 void SetMinBendingMomentum(Double_t MinBendingMomentum) {fMinBendingMomentum = MinBendingMomentum;}
33 Double_t GetMaxSigma2Distance(void) {return fMaxSigma2Distance;}
34 void SetMaxSigma2Distance(Double_t MaxSigma2Distance) {fMaxSigma2Distance = MaxSigma2Distance;}
35 Double_t GetBendingResolution(void) {return fBendingResolution;}
36 void SetBendingResolution(Double_t BendingResolution) {fBendingResolution = BendingResolution;}
37 Double_t GetNonBendingResolution(void) {return fNonBendingResolution;}
38 void SetNonBendingResolution(Double_t NonBendingResolution) {fNonBendingResolution = NonBendingResolution;}
39 Double_t GetChamberThicknessInX0(void) {return fChamberThicknessInX0;}
40 void SetChamberThicknessInX0(Double_t ChamberThicknessInX0) {fChamberThicknessInX0 = ChamberThicknessInX0;}
41 Double_t GetSimpleBValue(void) {return fSimpleBValue;}
42 void SetSimpleBValue(Double_t SimpleBValue) {fSimpleBValue = SimpleBValue;}
43 Double_t GetSimpleBLength(void) {return fSimpleBLength;}
44 void SetSimpleBLength(Double_t SimpleBLength) {fSimpleBLength = SimpleBLength;}
45 Double_t GetSimpleBPosition(void) {return fSimpleBPosition;}
46 void SetSimpleBPosition(Double_t SimpleBPosition) {fSimpleBPosition = SimpleBPosition;}
47 Int_t GetRecGeantHits(void) {return fRecGeantHits;}
48 void SetRecGeantHits(Int_t RecGeantHits) {fRecGeantHits = RecGeantHits;}
49 Double_t GetEfficiency(void) {return fEfficiency;}
50 void SetEfficiency(Double_t Efficiency) {fEfficiency = Efficiency;}
51 Int_t GetPrintLevel(void) {return fPrintLevel;}
52 void SetPrintLevel(Int_t PrintLevel) {fPrintLevel = PrintLevel;}
53 void SetReconstructionParametersToDefaults(void);
55 // Parameters for GEANT background events
56 TFile* GetBkgGeantFile(void) {return fBkgGeantFile;}
57 void SetBkgGeantFile(Text_t *BkgGeantFileName); // set background file for GEANT hits
58 void NextBkgGeantEvent(void); // next event in background file for GEANT hits
60 // Hits for reconstruction
61 Int_t GetNHitsForRec() {return fNHitsForRec;} // Number
64 Double_t GetImpactParamFromBendingMomentum(Double_t BendingMomentum);
65 Double_t GetBendingMomentumFromImpactParam(Double_t ImpactParam);
66 void EventReconstruct(void);
72 // Parameters for event reconstruction
73 Double_t fMinBendingMomentum; // minimum value (GeV/c) of momentum in bending plane
74 Double_t fMaxSigma2Distance; // maximum square distance in units of the variance (maximum chi2)
75 Double_t fRMin[kMaxMuonTrackingChambers]; // minimum radius (cm)
76 Double_t fRMax[kMaxMuonTrackingChambers]; // maximum radius (cm)
77 Double_t fSegmentMaxDistBending[kMaxMuonTrackingStations]; // maximum distance (cm) for segments in bending plane
78 Double_t fSegmentMaxDistNonBending[kMaxMuonTrackingStations]; // maximum distance (cm) for segments in bending plane
79 Double_t fBendingResolution; // chamber resolution (cm) in bending plane
80 Double_t fNonBendingResolution; // chamber resolution (cm) in non bending plane
81 Double_t fChamberThicknessInX0; // chamber thickness in number of radiation lengths
82 // how to take it from simulation ????
83 Double_t fSimpleBValue; // simple magnetic field: value (kG)
84 Double_t fSimpleBLength; // simple magnetic field: length (cm)
85 Double_t fSimpleBPosition; // simple magnetic field: Z central position (cm)
86 Int_t fRecGeantHits; // reconstruction from raw clusters (0) or from GEANT hits (1)
87 Double_t fEfficiency; // chamber efficiency (used for GEANT hits only)
88 Int_t fPrintLevel; // print level
90 // Parameters for GEANT background events
91 // should be in AliMUON class ????
92 TFile *fBkgGeantFile; // pointer to file
93 TTree *fBkgGeantTK; // pointer to tree TK
94 TClonesArray *fBkgGeantParticles; // pointer to list of particles in tree TK
95 TTree *fBkgGeantTH; // pointer to tree TH
96 TClonesArray *fBkgGeantHits; // pointer to list of hits in tree TH
97 Int_t fBkgGeantEventNumber; // event number
99 // Hits for reconstruction (should be in AliMUON ????)
100 TClonesArray *fHitsForRecPtr; // pointer to the array of hits for reconstruction
101 Int_t fNHitsForRec; // number of hits for reconstruction
102 // Information per chamber (should be in AliMUONChamber ????)
103 Int_t fNHitsForRecPerChamber[kMaxMuonTrackingChambers]; // number of HitsForRec
104 Int_t fIndexOfFirstHitForRecPerChamber[kMaxMuonTrackingChambers]; // index (0...) of first HitForRec
106 // Segments inside a station
107 TClonesArray *fSegmentsPtr[kMaxMuonTrackingStations]; // array of pointers to the segments for each station
108 Int_t fNSegments[kMaxMuonTrackingStations]; // number of segments for each station
111 TClonesArray *fRecTracksPtr; // pointer to array of reconstructed tracks
112 Int_t fNRecTracks; // number of reconstructed tracks
115 void ResetHitsForRec(void);
116 void MakeEventToBeReconstructed(void);
117 void AddHitsForRecFromGEANT(TTree *TH);
118 void AddHitsForRecFromBkgGEANT(TTree *TH, TClonesArray *Hits);
119 AliMUONHitForRec* NewHitForRecFromGEANT(AliMUONHit* Hit, Int_t TrackNumber, Int_t HitNumber, Int_t Signal);
120 /* void AddHitsForRecFromCathodeCorrelations(TTree* TC); */
121 void AddHitsForRecFromRawClusters(TTree* TR);
122 void SortHitsForRecWithIncreasingChamber();
123 void MakeSegments(void);
124 void ResetSegments(void);
125 void MakeSegmentsPerStation(Int_t Station);
126 void MakeTracks(void);
127 void ResetTracks(void);
128 Int_t MakeTrackCandidatesWithTwoSegments(AliMUONSegment *BegSegment);
129 Int_t MakeTrackCandidatesWithOneSegmentAndOnePoint(AliMUONSegment *BegSegment);
130 void MakeTrackCandidates(void);
131 void FollowTracks(void);
133 ClassDef(AliMUONEventReconstructor, 1) // Class definition in ROOT context