[u/mrichter/AliRoot.git] / MUON / AliMUONEventReconstructor.h

#ifndef ALIMUONEVENTRECONSTRUCTOR_H
#define ALIMUONEVENTRECONSTRUCTOR_H
/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
 * See cxx source for full Copyright notice                               */

/*$Id$*/

#include <TROOT.h>

class AliMUONHit;
class AliMUONHitForRec;
class AliMUONSegment;
class TClonesArray;
class TFile;
class TTree;
class AliMUONRecoEvent;

// Constants which should be elsewhere ????
const Int_t kMaxMuonTrackingChambers = 10;
const Int_t kMaxMuonTrackingStations = kMaxMuonTrackingChambers / 2;

class AliMUONEventReconstructor : public TObject {

 public:
  AliMUONEventReconstructor(void); // Constructor
  virtual ~AliMUONEventReconstructor(void); // Destructor
  AliMUONEventReconstructor (const AliMUONEventReconstructor& Reconstructor); // copy constructor
  AliMUONEventReconstructor& operator=(const AliMUONEventReconstructor& Reconstructor); // assignment operator

  // Parameters for event reconstruction: public methods
  // Get and Set, Set to defaults
  Double_t GetMinBendingMomentum(void) {return fMinBendingMomentum;}
  void SetMinBendingMomentum(Double_t MinBendingMomentum) {fMinBendingMomentum = MinBendingMomentum;}
  Double_t GetMaxSigma2Distance(void) {return fMaxSigma2Distance;}
  void SetMaxSigma2Distance(Double_t MaxSigma2Distance) {fMaxSigma2Distance = MaxSigma2Distance;}
  Double_t GetBendingResolution(void) {return fBendingResolution;}
  void SetBendingResolution(Double_t BendingResolution) {fBendingResolution = BendingResolution;}
  Double_t GetNonBendingResolution(void) {return fNonBendingResolution;}
  void SetNonBendingResolution(Double_t NonBendingResolution) {fNonBendingResolution = NonBendingResolution;}
  Double_t GetChamberThicknessInX0(void) {return fChamberThicknessInX0;}
  void SetChamberThicknessInX0(Double_t ChamberThicknessInX0) {fChamberThicknessInX0 = ChamberThicknessInX0;}
  Double_t GetSimpleBValue(void) {return fSimpleBValue;}
  void SetSimpleBValue(Double_t SimpleBValue) {fSimpleBValue = SimpleBValue;}
  Double_t GetSimpleBLength(void) {return fSimpleBLength;}
  void SetSimpleBLength(Double_t SimpleBLength) {fSimpleBLength = SimpleBLength;}
  Double_t GetSimpleBPosition(void) {return fSimpleBPosition;}
  void SetSimpleBPosition(Double_t SimpleBPosition) {fSimpleBPosition = SimpleBPosition;}
  Int_t GetRecGeantHits(void) {return fRecGeantHits;}
  void SetRecGeantHits(Int_t RecGeantHits) {fRecGeantHits = RecGeantHits;}
  Double_t GetEfficiency(void) {return fEfficiency;}
  void SetEfficiency(Double_t Efficiency) {fEfficiency = Efficiency;}
  Int_t GetPrintLevel(void) {return fPrintLevel;}
  void SetPrintLevel(Int_t PrintLevel) {fPrintLevel = PrintLevel;}
  void SetReconstructionParametersToDefaults(void);

  // Parameters for GEANT background events
  TFile* GetBkgGeantFile(void) {return fBkgGeantFile;}
  void SetBkgGeantFile(Text_t *BkgGeantFileName); // set background file for GEANT hits
  void NextBkgGeantEvent(void); // next event in background file for GEANT hits

  // Hits for reconstruction
  Int_t GetNHitsForRec(void) {return fNHitsForRec;} // Number

  // Reconstructed tracks
  Int_t GetNRecTracks() {return fNRecTracks;} // Number
  void SetNRecTracks(Int_t NRecTracks) {fNRecTracks = NRecTracks;}
  TClonesArray* GetRecTracksPtr(void) {return fRecTracksPtr;} // Array

  // Hits on reconstructed tracks
  Int_t GetNRecTrackHits() {return fNRecTrackHits;} // Number
  void SetNRecTrackHits(Int_t NRecTrackHits) {fNRecTrackHits = NRecTrackHits;}
  TClonesArray* GetRecTrackHitsPtr(void) {return fRecTrackHitsPtr;} // Array

  // Functions
  Double_t GetImpactParamFromBendingMomentum(Double_t BendingMomentum);
  Double_t GetBendingMomentumFromImpactParam(Double_t ImpactParam);
  void EventReconstruct(void);
  void EventDump(void);  // dump reconstructed event
  void FillEvent();      // fill and write tree of reconstructed events

 protected:

 private:

  // Parameters for event reconstruction
  Double_t fMinBendingMomentum; // minimum value (GeV/c) of momentum in bending plane
  Double_t fMaxSigma2Distance; // maximum square distance in units of the variance (maximum chi2)
  Double_t fRMin[kMaxMuonTrackingChambers]; // minimum radius (cm)
  Double_t fRMax[kMaxMuonTrackingChambers]; // maximum radius (cm)
  Double_t fSegmentMaxDistBending[kMaxMuonTrackingStations]; // maximum distance (cm) for segments in bending plane
  Double_t fSegmentMaxDistNonBending[kMaxMuonTrackingStations]; // maximum distance (cm) for segments in non bending plane
  Double_t fBendingResolution; // chamber resolution (cm) in bending plane
  Double_t fNonBendingResolution; // chamber resolution (cm) in non bending plane
  Double_t fChamberThicknessInX0; // chamber thickness in number of radiation lengths
                                  // how to take it from simulation ????
  Double_t fSimpleBValue; // simple magnetic field: value (kG)
  Double_t fSimpleBLength; // simple magnetic field: length (cm)
  Double_t fSimpleBPosition; // simple magnetic field: Z central position (cm)
  Int_t fRecGeantHits; // reconstruction from raw clusters (0) or from GEANT hits (1)
  Double_t fEfficiency; // chamber efficiency (used for GEANT hits only)
  Int_t fPrintLevel; // print level

  // Parameters for GEANT background events
  // should be in AliMUON class ????
  TFile *fBkgGeantFile; // pointer to file
  TTree *fBkgGeantTK; // pointer to tree TK
  TClonesArray *fBkgGeantParticles;   // pointer to list of particles in tree TK
  TTree *fBkgGeantTH; // pointer to tree TH
  TClonesArray *fBkgGeantHits;   // pointer to list of hits in tree TH
  Int_t fBkgGeantEventNumber;   // event number
  
  // Hits for reconstruction (should be in AliMUON ????)
  TClonesArray *fHitsForRecPtr; // pointer to the array of hits for reconstruction
  Int_t fNHitsForRec; // number of hits for reconstruction
  // Information per chamber (should be in AliMUONChamber ????)
  Int_t fNHitsForRecPerChamber[kMaxMuonTrackingChambers]; // number of HitsForRec
  Int_t fIndexOfFirstHitForRecPerChamber[kMaxMuonTrackingChambers]; // index (0...) of first HitForRec

  // Segments inside a station
  TClonesArray *fSegmentsPtr[kMaxMuonTrackingStations]; // array of pointers to the segments for each station
  Int_t fNSegments[kMaxMuonTrackingStations]; // number of segments for each station

  // Reconstructed tracks
  TClonesArray *fRecTracksPtr; // pointer to array of reconstructed tracks
  Int_t fNRecTracks; // number of reconstructed tracks

  // Track hits on reconstructed tracks
  TClonesArray *fRecTrackHitsPtr; // pointer to array of hits on reconstructed tracks
  Int_t fNRecTrackHits; // number of hits on reconstructed tracks

  // Objects needed for tree writing
  AliMUONRecoEvent *fRecoEvent; // the reconstructed event
  TTree            *fEventTree; // tree of reconstructed events
  TFile            *fTreeFile;  // file where the tree is outputed

  // Functions
  void ResetHitsForRec(void);
  void MakeEventToBeReconstructed(void);
  void AddHitsForRecFromGEANT(TTree *TH);
  void AddHitsForRecFromBkgGEANT(TTree *TH, TClonesArray *Hits);
  AliMUONHitForRec* NewHitForRecFromGEANT(AliMUONHit* Hit, Int_t TrackNumber, Int_t HitNumber, Int_t Signal);
/*   void AddHitsForRecFromCathodeCorrelations(TTree* TC); */
  void AddHitsForRecFromRawClusters(TTree* TR);
  void SortHitsForRecWithIncreasingChamber();
  void MakeSegments(void);
  void ResetSegments(void);
  void MakeSegmentsPerStation(Int_t Station);
  void MakeTracks(void);
  void ResetTrackHits(void);
  void ResetTracks(void);
  Int_t MakeTrackCandidatesWithTwoSegments(AliMUONSegment *BegSegment);
  Int_t MakeTrackCandidatesWithOneSegmentAndOnePoint(AliMUONSegment *BegSegment);
  void MakeTrackCandidates(void);
  void FollowTracks(void);
  void RemoveDoubleTracks(void);

  ClassDef(AliMUONEventReconstructor, 0) // MUON event reconstructor in ALICE
    };
	
#endif
Commit	Line	Data
a9e2aefa	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
	8	#include <TROOT.h>
	9
	10	class AliMUONHit;
	11	class AliMUONHitForRec;
	12	class AliMUONSegment;
	13	class TClonesArray;
	14	class TFile;
	15	class TTree;
c7ba256d	16	class AliMUONRecoEvent;
a9e2aefa	17
a9e2aefa	18	// Constants which should be elsewhere ????
9cbdf048	19	const Int_t kMaxMuonTrackingChambers = 10;
9cbdf048	20	const Int_t kMaxMuonTrackingStations = kMaxMuonTrackingChambers / 2;
a9e2aefa	21
	22	class AliMUONEventReconstructor : public TObject {
	23
	24	public:
	25	AliMUONEventReconstructor(void); // Constructor
	26	virtual ~AliMUONEventReconstructor(void); // Destructor
9cbdf048	27	AliMUONEventReconstructor (const AliMUONEventReconstructor& Reconstructor); // copy constructor
9cbdf048	28	AliMUONEventReconstructor& operator=(const AliMUONEventReconstructor& Reconstructor); // assignment operator
a9e2aefa	29
	30	// Parameters for event reconstruction: public methods
	31	// Get and Set, Set to defaults
	32	Double_t GetMinBendingMomentum(void) {return fMinBendingMomentum;}
	33	void SetMinBendingMomentum(Double_t MinBendingMomentum) {fMinBendingMomentum = MinBendingMomentum;}
	34	Double_t GetMaxSigma2Distance(void) {return fMaxSigma2Distance;}
	35	void SetMaxSigma2Distance(Double_t MaxSigma2Distance) {fMaxSigma2Distance = MaxSigma2Distance;}
	36	Double_t GetBendingResolution(void) {return fBendingResolution;}
	37	void SetBendingResolution(Double_t BendingResolution) {fBendingResolution = BendingResolution;}
	38	Double_t GetNonBendingResolution(void) {return fNonBendingResolution;}
	39	void SetNonBendingResolution(Double_t NonBendingResolution) {fNonBendingResolution = NonBendingResolution;}
	40	Double_t GetChamberThicknessInX0(void) {return fChamberThicknessInX0;}
	41	void SetChamberThicknessInX0(Double_t ChamberThicknessInX0) {fChamberThicknessInX0 = ChamberThicknessInX0;}
	42	Double_t GetSimpleBValue(void) {return fSimpleBValue;}
	43	void SetSimpleBValue(Double_t SimpleBValue) {fSimpleBValue = SimpleBValue;}
	44	Double_t GetSimpleBLength(void) {return fSimpleBLength;}
	45	void SetSimpleBLength(Double_t SimpleBLength) {fSimpleBLength = SimpleBLength;}
	46	Double_t GetSimpleBPosition(void) {return fSimpleBPosition;}
	47	void SetSimpleBPosition(Double_t SimpleBPosition) {fSimpleBPosition = SimpleBPosition;}
	48	Int_t GetRecGeantHits(void) {return fRecGeantHits;}
	49	void SetRecGeantHits(Int_t RecGeantHits) {fRecGeantHits = RecGeantHits;}
	50	Double_t GetEfficiency(void) {return fEfficiency;}
	51	void SetEfficiency(Double_t Efficiency) {fEfficiency = Efficiency;}
	52	Int_t GetPrintLevel(void) {return fPrintLevel;}
	53	void SetPrintLevel(Int_t PrintLevel) {fPrintLevel = PrintLevel;}
	54	void SetReconstructionParametersToDefaults(void);
	55
	56	// Parameters for GEANT background events
	57	TFile* GetBkgGeantFile(void) {return fBkgGeantFile;}
	58	void SetBkgGeantFile(Text_t *BkgGeantFileName); // set background file for GEANT hits
	59	void NextBkgGeantEvent(void); // next event in background file for GEANT hits
	60
	61	// Hits for reconstruction
8429a5e4	62	Int_t GetNHitsForRec(void) {return fNHitsForRec;} // Number
	63
	64	// Reconstructed tracks
	65	Int_t GetNRecTracks() {return fNRecTracks;} // Number
	66	void SetNRecTracks(Int_t NRecTracks) {fNRecTracks = NRecTracks;}
	67	TClonesArray* GetRecTracksPtr(void) {return fRecTracksPtr;} // Array
	68
	69	// Hits on reconstructed tracks
	70	Int_t GetNRecTrackHits() {return fNRecTrackHits;} // Number
	71	void SetNRecTrackHits(Int_t NRecTrackHits) {fNRecTrackHits = NRecTrackHits;}
	72	TClonesArray* GetRecTrackHitsPtr(void) {return fRecTrackHitsPtr;} // Array
a9e2aefa	73
	74	// Functions
	75	Double_t GetImpactParamFromBendingMomentum(Double_t BendingMomentum);
	76	Double_t GetBendingMomentumFromImpactParam(Double_t ImpactParam);
	77	void EventReconstruct(void);
04b5ea16	78	void EventDump(void); // dump reconstructed event
c7ba256d	79	void FillEvent(); // fill and write tree of reconstructed events
a9e2aefa	80
9cbdf048	81	protected:
9cbdf048	82
a9e2aefa	83	private:
	84
	85	// Parameters for event reconstruction
	86	Double_t fMinBendingMomentum; // minimum value (GeV/c) of momentum in bending plane
	87	Double_t fMaxSigma2Distance; // maximum square distance in units of the variance (maximum chi2)
9cbdf048	88	Double_t fRMin[kMaxMuonTrackingChambers]; // minimum radius (cm)
	89	Double_t fRMax[kMaxMuonTrackingChambers]; // maximum radius (cm)
	90	Double_t fSegmentMaxDistBending[kMaxMuonTrackingStations]; // maximum distance (cm) for segments in bending plane
ba5b68db	91	Double_t fSegmentMaxDistNonBending[kMaxMuonTrackingStations]; // maximum distance (cm) for segments in non bending plane
a9e2aefa	92	Double_t fBendingResolution; // chamber resolution (cm) in bending plane
	93	Double_t fNonBendingResolution; // chamber resolution (cm) in non bending plane
	94	Double_t fChamberThicknessInX0; // chamber thickness in number of radiation lengths
	95	// how to take it from simulation ????
	96	Double_t fSimpleBValue; // simple magnetic field: value (kG)
	97	Double_t fSimpleBLength; // simple magnetic field: length (cm)
	98	Double_t fSimpleBPosition; // simple magnetic field: Z central position (cm)
	99	Int_t fRecGeantHits; // reconstruction from raw clusters (0) or from GEANT hits (1)
	100	Double_t fEfficiency; // chamber efficiency (used for GEANT hits only)
	101	Int_t fPrintLevel; // print level
	102
	103	// Parameters for GEANT background events
	104	// should be in AliMUON class ????
	105	TFile *fBkgGeantFile; // pointer to file
	106	TTree *fBkgGeantTK; // pointer to tree TK
	107	TClonesArray *fBkgGeantParticles; // pointer to list of particles in tree TK
	108	TTree *fBkgGeantTH; // pointer to tree TH
	109	TClonesArray *fBkgGeantHits; // pointer to list of hits in tree TH
	110	Int_t fBkgGeantEventNumber; // event number
	111
	112	// Hits for reconstruction (should be in AliMUON ????)
	113	TClonesArray *fHitsForRecPtr; // pointer to the array of hits for reconstruction
	114	Int_t fNHitsForRec; // number of hits for reconstruction
	115	// Information per chamber (should be in AliMUONChamber ????)
9cbdf048	116	Int_t fNHitsForRecPerChamber[kMaxMuonTrackingChambers]; // number of HitsForRec
9cbdf048	117	Int_t fIndexOfFirstHitForRecPerChamber[kMaxMuonTrackingChambers]; // index (0...) of first HitForRec
a9e2aefa	118
a9e2aefa	119	// Segments inside a station
9cbdf048	120	TClonesArray *fSegmentsPtr[kMaxMuonTrackingStations]; // array of pointers to the segments for each station
9cbdf048	121	Int_t fNSegments[kMaxMuonTrackingStations]; // number of segments for each station
a9e2aefa	122
8429a5e4	123	// Reconstructed tracks
a9e2aefa	124	TClonesArray *fRecTracksPtr; // pointer to array of reconstructed tracks
	125	Int_t fNRecTracks; // number of reconstructed tracks
	126
8429a5e4	127	// Track hits on reconstructed tracks
	128	TClonesArray *fRecTrackHitsPtr; // pointer to array of hits on reconstructed tracks
	129	Int_t fNRecTrackHits; // number of hits on reconstructed tracks
	130
c7ba256d	131	// Objects needed for tree writing
	132	AliMUONRecoEvent *fRecoEvent; // the reconstructed event
	133	TTree *fEventTree; // tree of reconstructed events
	134	TFile *fTreeFile; // file where the tree is outputed
	135
a9e2aefa	136	// Functions
	137	void ResetHitsForRec(void);
	138	void MakeEventToBeReconstructed(void);
	139	void AddHitsForRecFromGEANT(TTree *TH);
	140	void AddHitsForRecFromBkgGEANT(TTree TH, TClonesArray Hits);
	141	AliMUONHitForRec* NewHitForRecFromGEANT(AliMUONHit* Hit, Int_t TrackNumber, Int_t HitNumber, Int_t Signal);
	142	/* void AddHitsForRecFromCathodeCorrelations(TTree* TC); */
	143	void AddHitsForRecFromRawClusters(TTree* TR);
	144	void SortHitsForRecWithIncreasingChamber();
	145	void MakeSegments(void);
	146	void ResetSegments(void);
	147	void MakeSegmentsPerStation(Int_t Station);
	148	void MakeTracks(void);
8429a5e4	149	void ResetTrackHits(void);
a9e2aefa	150	void ResetTracks(void);
	151	Int_t MakeTrackCandidatesWithTwoSegments(AliMUONSegment *BegSegment);
	152	Int_t MakeTrackCandidatesWithOneSegmentAndOnePoint(AliMUONSegment *BegSegment);
	153	void MakeTrackCandidates(void);
	154	void FollowTracks(void);
8429a5e4	155	void RemoveDoubleTracks(void);
a9e2aefa	156
ecfa008b	157	ClassDef(AliMUONEventReconstructor, 0) // MUON event reconstructor in ALICE
a9e2aefa	158	};
	159
	160	#endif