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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 */ | |
5 | ||
6 | /*$Id$*/ | |
7 | // Revision of includes 07/05/2004 | |
8 | ||
9 | //////////////////////////////////// | |
10 | // MUON event reconstructor in ALICE | |
11 | //////////////////////////////////// | |
12 | ||
13 | #include <TObject.h> | |
14 | ||
15 | class AliMUONHit; | |
16 | class AliMUONHitForRec; | |
17 | class AliMUONSegment; | |
18 | class TClonesArray; | |
19 | class TFile; | |
20 | class TTree; | |
21 | class AliMUONRecoEvent; | |
22 | class AliMUONData; | |
23 | class AliRunLoader; | |
24 | class AliLoader; | |
25 | ||
26 | class AliMUONEventReconstructor : public TObject { | |
27 | ||
28 | public: | |
29 | AliMUONEventReconstructor(AliLoader* loader); // default Constructor | |
30 | virtual ~AliMUONEventReconstructor(void); // Destructor | |
31 | ||
32 | // Parameters for event reconstruction: public methods | |
33 | // Get and Set, Set to defaults | |
34 | Double_t GetMinBendingMomentum(void) const {return fMinBendingMomentum;} | |
35 | void SetMinBendingMomentum(Double_t MinBendingMomentum) {fMinBendingMomentum = MinBendingMomentum;} | |
36 | Double_t GetMaxBendingMomentum(void) const {return fMaxBendingMomentum;} | |
37 | void SetMaxBendingMomentum(Double_t MaxBendingMomentum) {fMaxBendingMomentum = MaxBendingMomentum;} | |
38 | Double_t GetMaxChi2(void) const {return fMaxChi2;} | |
39 | void SetMaxChi2(Double_t MaxChi2) {fMaxChi2 = MaxChi2;} | |
40 | Double_t GetMaxSigma2Distance(void) const {return fMaxSigma2Distance;} | |
41 | void SetMaxSigma2Distance(Double_t MaxSigma2Distance) {fMaxSigma2Distance = MaxSigma2Distance;} | |
42 | Double_t GetBendingResolution(void) const {return fBendingResolution;} | |
43 | void SetBendingResolution(Double_t BendingResolution) {fBendingResolution = BendingResolution;} | |
44 | Double_t GetNonBendingResolution(void) const {return fNonBendingResolution;} | |
45 | void SetNonBendingResolution(Double_t NonBendingResolution) {fNonBendingResolution = NonBendingResolution;} | |
46 | Double_t GetChamberThicknessInX0(void) const {return fChamberThicknessInX0;} | |
47 | void SetChamberThicknessInX0(Double_t ChamberThicknessInX0) {fChamberThicknessInX0 = ChamberThicknessInX0;} | |
48 | Double_t GetSimpleBValue(void) const {return fSimpleBValue;} | |
49 | void SetSimpleBValue(Double_t SimpleBValue) {fSimpleBValue = SimpleBValue;} | |
50 | Double_t GetSimpleBLength(void) const {return fSimpleBLength;} | |
51 | void SetSimpleBLength(Double_t SimpleBLength) {fSimpleBLength = SimpleBLength;} | |
52 | Double_t GetSimpleBPosition(void) const {return fSimpleBPosition;} | |
53 | void SetSimpleBPosition(Double_t SimpleBPosition) {fSimpleBPosition = SimpleBPosition;} | |
54 | Int_t GetRecGeantHits(void) const {return fRecGeantHits;} | |
55 | void SetRecGeantHits(Int_t RecGeantHits) {fRecGeantHits = RecGeantHits;} | |
56 | Double_t GetEfficiency(void) const {return fEfficiency;} | |
57 | void SetEfficiency(Double_t Efficiency) {fEfficiency = Efficiency;} | |
58 | Int_t GetPrintLevel(void) const {return fPrintLevel;} | |
59 | void SetPrintLevel(Int_t PrintLevel) {fPrintLevel = PrintLevel;} | |
60 | void SetReconstructionParametersToDefaults(void); | |
61 | ||
62 | // Parameters for GEANT background events | |
63 | TFile* GetBkgGeantFile(void) const {return fBkgGeantFile;} | |
64 | void SetBkgGeantFile(Text_t *BkgGeantFileName); // set background file for GEANT hits | |
65 | void NextBkgGeantEvent(void); // next event in background file for GEANT hits | |
66 | ||
67 | // Hits for reconstruction | |
68 | Int_t GetNHitsForRec(void) const {return fNHitsForRec;} // Number | |
69 | ||
70 | // Reconstructed tracks | |
71 | Int_t GetNRecTracks() const {return fNRecTracks;} // Number | |
72 | void SetNRecTracks(Int_t NRecTracks) {fNRecTracks = NRecTracks;} | |
73 | TClonesArray* GetRecTracksPtr(void) const {return fRecTracksPtr;} // Array | |
74 | ||
75 | // Reconstructed trigger tracks | |
76 | Int_t GetNRecTriggerTracks() const {return fNRecTriggerTracks;} // Number | |
77 | void SetNRecTriggerTracks(Int_t NRecTriggerTracks) {fNRecTriggerTracks = NRecTriggerTracks;} | |
78 | TClonesArray* GetRecTriggerTracksPtr(void) const {return fRecTriggerTracksPtr;} // Array | |
79 | ||
80 | // Hits on reconstructed tracks | |
81 | Int_t GetNRecTrackHits() const {return fNRecTrackHits;} // Number | |
82 | void SetNRecTrackHits(Int_t NRecTrackHits) {fNRecTrackHits = NRecTrackHits;} | |
83 | TClonesArray* GetRecTrackHitsPtr(void) const {return fRecTrackHitsPtr;} // Array | |
84 | ||
85 | // Functions | |
86 | Double_t GetImpactParamFromBendingMomentum(Double_t BendingMomentum) const; | |
87 | Double_t GetBendingMomentumFromImpactParam(Double_t ImpactParam) const; | |
88 | void EventReconstruct(void); | |
89 | void EventReconstructTrigger(void); | |
90 | void EventDump(void); // dump reconstructed event | |
91 | void EventDumpTrigger(void); // dump reconstructed trigger event | |
92 | void FillEvent(); // fill and write tree of reconstructed events | |
93 | void SetTrackMethod(Int_t TrackMethod) {fTrackMethod = TrackMethod;} //AZ | |
94 | Int_t GetTrackMethod(void) const {return fTrackMethod;} //AZ | |
95 | //Int_t fMuons; // AZ - number of muons within acceptance - just for tests | |
96 | ||
97 | AliMUONData* GetMUONData() {return fMUONData;} | |
98 | ||
99 | protected: | |
100 | AliMUONEventReconstructor (const AliMUONEventReconstructor& rhs); // copy constructor | |
101 | AliMUONEventReconstructor& operator=(const AliMUONEventReconstructor& rhs); // assignment operator | |
102 | ||
103 | private: | |
104 | ||
105 | // Constants which should be elsewhere ???? | |
106 | static const Int_t fgkMaxMuonTrackingChambers = 10; // Max number of Muon tracking chambers | |
107 | static const Int_t fgkMaxMuonTrackingStations = 5; // Max number of Muon tracking stations | |
108 | ||
109 | // Defaults parameters for reconstruction | |
110 | static const Double_t fgkDefaultMinBendingMomentum; // default min. bending momentum for reconstruction | |
111 | static const Double_t fgkDefaultMaxBendingMomentum; // default max. bending momentum for reconstruction | |
112 | static const Double_t fgkDefaultMaxChi2; // default max. track chi2 for reconstruction | |
113 | static const Double_t fgkDefaultMaxSigma2Distance; // default square of max. distance for window size | |
114 | static const Double_t fgkDefaultBendingResolution; // default bending coordinate resolution for reconstruction | |
115 | static const Double_t fgkDefaultNonBendingResolution; // default non bending coordinate resolution for reconstruction | |
116 | static const Double_t fgkDefaultChamberThicknessInX0; // default chamber thickness in X0 for reconstruction | |
117 | // Simple magnetic field: | |
118 | // Value taken from macro MUONtracking.C: 0.7 T, hence 7 kG | |
119 | // Length and Position from reco_muon.F, with opposite sign: | |
120 | // Length = ZMAGEND-ZCOIL | |
121 | // Position = (ZMAGEND+ZCOIL)/2 | |
122 | // to be ajusted differently from real magnetic field ???? | |
123 | static const Double_t fgkDefaultSimpleBValue; // default value of magnetic field (dipole) | |
124 | static const Double_t fgkDefaultSimpleBLength; // default length of magnetic field (dipole) | |
125 | static const Double_t fgkDefaultSimpleBPosition; // default position of magnetic field (dipole) | |
126 | static const Int_t fgkDefaultRecGeantHits; // default flag for reconstrution GEANT hits or Clusters | |
127 | static const Double_t fgkDefaultEfficiency; // default chamber efficiency for GEANT hits recontruction | |
128 | ||
129 | static const Int_t fgkDefaultPrintLevel; // default print level | |
130 | ||
131 | Int_t fTrackMethod; // AZ - tracking method | |
132 | ||
133 | // Parameters for event reconstruction | |
134 | Double_t fMinBendingMomentum; // minimum value (GeV/c) of momentum in bending plane | |
135 | // Parameters for event reconstruction | |
136 | Double_t fMaxBendingMomentum; // maximum value (GeV/c) of momentum in bending plane | |
137 | Double_t fMaxChi2; // maximum Chi2 per degree of Freedom | |
138 | Double_t fMaxSigma2Distance; // maximum square distance in units of the variance (maximum chi2) | |
139 | Double_t fRMin[fgkMaxMuonTrackingChambers]; // minimum radius (cm) | |
140 | Double_t fRMax[fgkMaxMuonTrackingChambers]; // maximum radius (cm) | |
141 | Double_t fSegmentMaxDistBending[fgkMaxMuonTrackingStations]; // maximum distance (cm) for segments in bending plane | |
142 | Double_t fSegmentMaxDistNonBending[fgkMaxMuonTrackingStations]; // maximum distance (cm) for segments in non bending plane | |
143 | Double_t fBendingResolution; // chamber resolution (cm) in bending plane | |
144 | Double_t fNonBendingResolution; // chamber resolution (cm) in non bending plane | |
145 | Double_t fChamberThicknessInX0; // chamber thickness in number of radiation lengths | |
146 | // how to take it from simulation ???? | |
147 | Double_t fSimpleBValue; // simple magnetic field: value (kG) | |
148 | Double_t fSimpleBLength; // simple magnetic field: length (cm) | |
149 | Double_t fSimpleBPosition; // simple magnetic field: Z central position (cm) | |
150 | Int_t fRecGeantHits; // reconstruction from raw clusters (0) or from GEANT hits (1) | |
151 | Double_t fEfficiency; // chamber efficiency (used for GEANT hits only) | |
152 | Int_t fPrintLevel; // print level | |
153 | ||
154 | // Parameters for GEANT background events | |
155 | // should be in AliMUON class ???? | |
156 | TFile *fBkgGeantFile; // pointer to file | |
157 | TTree *fBkgGeantTK; // pointer to tree TK | |
158 | TClonesArray *fBkgGeantParticles; // pointer to list of particles in tree TK | |
159 | TTree *fBkgGeantTH; // pointer to tree TH | |
160 | TClonesArray *fBkgGeantHits; // pointer to list of hits in tree TH | |
161 | Int_t fBkgGeantEventNumber; // event number | |
162 | ||
163 | // Hits for reconstruction (should be in AliMUON ????) | |
164 | TClonesArray *fHitsForRecPtr; // pointer to the array of hits for reconstruction | |
165 | Int_t fNHitsForRec; // number of hits for reconstruction | |
166 | // Information per chamber (should be in AliMUONChamber ????) | |
167 | Int_t fNHitsForRecPerChamber[fgkMaxMuonTrackingChambers]; // number of HitsForRec | |
168 | Int_t fIndexOfFirstHitForRecPerChamber[fgkMaxMuonTrackingChambers]; // index (0...) of first HitForRec | |
169 | ||
170 | // Segments inside a station | |
171 | TClonesArray *fSegmentsPtr[fgkMaxMuonTrackingStations]; // array of pointers to the segments for each station | |
172 | Int_t fNSegments[fgkMaxMuonTrackingStations]; // number of segments for each station | |
173 | ||
174 | // Reconstructed tracks | |
175 | TClonesArray *fRecTracksPtr; // pointer to array of reconstructed tracks | |
176 | Int_t fNRecTracks; // number of reconstructed tracks | |
177 | ||
178 | // Reconstructed trigger tracks | |
179 | TClonesArray *fRecTriggerTracksPtr; // pointer to array of reconstructed trigger tracks | |
180 | Int_t fNRecTriggerTracks; // number of reconstructed trigger tracks | |
181 | ||
182 | // Track hits on reconstructed tracks | |
183 | TClonesArray *fRecTrackHitsPtr; // pointer to array of hits on reconstructed tracks | |
184 | Int_t fNRecTrackHits; // number of hits on reconstructed tracks | |
185 | ||
186 | // Objects needed for tree writing | |
187 | AliMUONRecoEvent *fRecoEvent; // the reconstructed event | |
188 | TTree *fEventTree; // tree of reconstructed events | |
189 | TFile *fTreeFile; // file where the tree is outputed | |
190 | ||
191 | // data container | |
192 | AliMUONData* fMUONData; // Data container for MUON subsystem | |
193 | ||
194 | // alice loader | |
195 | AliLoader* fLoader; // MUON loader to get data | |
196 | ||
197 | Int_t fMuons; // AZ - number of muons within acceptance - just for tests | |
198 | ||
199 | // Functions | |
200 | void ResetHitsForRec(void); | |
201 | void MakeEventToBeReconstructed(void); | |
202 | void AddHitsForRecFromGEANT(TTree *TH); | |
203 | void AddHitsForRecFromBkgGEANT(TTree *TH, TClonesArray *Hits); | |
204 | AliMUONHitForRec* NewHitForRecFromGEANT(AliMUONHit* Hit, Int_t TrackNumber, Int_t HitNumber, Int_t Signal); | |
205 | /* void AddHitsForRecFromCathodeCorrelations(TTree* TC); */ | |
206 | void AddHitsForRecFromRawClusters(TTree* TR); | |
207 | void SortHitsForRecWithIncreasingChamber(); | |
208 | void MakeSegments(void); | |
209 | void ResetSegments(void); | |
210 | void MakeSegmentsPerStation(Int_t Station); | |
211 | void MakeTracks(void); | |
212 | Bool_t MakeTriggerTracks(void); | |
213 | void ResetTrackHits(void); | |
214 | void ResetTracks(void); | |
215 | void ResetTriggerTracks(void); | |
216 | Int_t MakeTrackCandidatesWithTwoSegments(AliMUONSegment *BegSegment); | |
217 | Int_t MakeTrackCandidatesWithOneSegmentAndOnePoint(AliMUONSegment *BegSegment); | |
218 | void MakeTrackCandidates(void); | |
219 | void FollowTracks(void); | |
220 | void RemoveDoubleTracks(void); | |
221 | void UpdateTrackParamAtHit(void); | |
222 | void ValidateTracksWithTrigger(void); | |
223 | ||
224 | ||
225 | //AZ - for Kalman Filter | |
226 | void MakeTrackCandidatesK(void); | |
227 | void FollowTracksK(void); | |
228 | void RemoveDoubleTracksK(void); | |
229 | void GoToVertex(void); | |
230 | Bool_t CheckCandidateK(Int_t icand, Int_t nSeeds) const; | |
231 | ||
232 | ClassDef(AliMUONEventReconstructor, 0) // MUON event reconstructor in ALICE | |
233 | }; | |
234 | ||
235 | #endif |