[u/mrichter/AliRoot.git] / TRD / AliTRDtracker.h

#ifndef ALITRDTRACKER_H
#define ALITRDTRACKER_H   

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

#include <TNamed.h>

class TFile;
class TParticle;
class TParticlePDG;
class TObjArray;

class AliTRDgeometry;
class AliTRDtrackingSector;
class AliTRDtrack;
class AliTRDmcTrack;


class AliTRDtracker : public TNamed { 

 public:

  AliTRDtracker();
  AliTRDtracker(const Text_t* name, const Text_t* title);
  ~AliTRDtracker(); 

  virtual void  Clusters2Tracks(); 
  Double_t      ExpectedSigmaY2(Double_t r, Double_t tgl, Double_t pt);
  Double_t      ExpectedSigmaZ2(Double_t r, Double_t tgl);
  Int_t         FindProlongation(AliTRDtrack& t, AliTRDtrackingSector *sec,
                                 Int_t s, Int_t rf=0);
  void          GetEvent(const Char_t *hitfile, const Char_t *clusterfile);
  void          SetUpSectors(AliTRDtrackingSector *sec);
  virtual void  MakeSeeds(Int_t inner, Int_t outer);
  virtual void  FindTracks();
  virtual void  UseClusters(AliTRDtrack t);
  virtual Int_t GetTrackLabel(AliTRDtrack t);
  Int_t         WriteTracks(const Char_t *filename); 
  void          ReadClusters(TObjArray *array, const Char_t *filename, 
                             Int_t option = 1);

 protected:

  Int_t            fEvent;            // Event number

  AliTRDgeometry   *fGeom;            // Pointer to TRD geometry

  Int_t            fNclusters;        // Number of clusters in TRD 
  TObjArray        *fClusters;        // List of clusters for all sectors

  Int_t            fNseeds;           // Number of track seeds  
  TObjArray        *fSeeds;           // List of track seeds
   
  Int_t            fNtracks;          // Number of reconstructed tracks 
  TObjArray        *fTracks;          // List of reconstructed tracks   

  static const Int_t    fSeedGap;  // Distance between inner and outer
                                      // time bin in seeding
  
  static const Int_t    fSeedStep;    // Step in iterations
  static const Float_t 	fSeedDepth;   // Fraction of TRD allocated for seeding
  static const Float_t  fSkipDepth;   // Fraction of TRD which can be skipped
                                      // in track prolongation		   
  static const Double_t fMaxChi2;     // max increment in track chi2 
 	
  static const Float_t  fMinClustersInTrack; // min fraction of clusters in track
  static const Float_t  fMinClustersInSeed;  // min fraction of clusters in seed
  static const Float_t  fMaxSeedDeltaZ;  // max dZ in MakeSeeds
  static const Float_t  fMaxSeedC;       // max initial curvature in MakeSeeds
  static const Float_t  fMaxSeedTan;     // max initial Tangens(lambda) in MakeSeeds
  static const Float_t  fMaxSeedVertexZ; // max vertex Z in MakeSeeds
  static const Double_t fSeedErrorSY;    // sy parameter in MakeSeeds
  static const Double_t fSeedErrorSY3;   // sy3 parameter in MakeSeeds
  static const Double_t fSeedErrorSZ;    // sz parameter in MakeSeeds
  static const Float_t  fLabelFraction;  // min fraction of clusters in GetTrackLabel
  static const Float_t  fWideRoad;       // max road width in FindProlongation
 
  ClassDef(AliTRDtracker,1)           // manager base class  

};

#endif
Commit	Line	Data
46d29e70	1	#ifndef ALITRDTRACKER_H
	2	#define ALITRDTRACKER_H
	3
	4	/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
	5	* See cxx source for full Copyright notice */
	6
	7	#include <TNamed.h>
	8
	9	class TFile;
bbf92647	10	class TParticle;
bbf92647	11	class TParticlePDG;
46d29e70	12	class TObjArray;
	13
	14	class AliTRDgeometry;
a2b90f83	15	class AliTRDtrackingSector;
46d29e70	16	class AliTRDtrack;
bbf92647	17	class AliTRDmcTrack;
46d29e70	18
	19
	20	class AliTRDtracker : public TNamed {
	21
	22	public:
	23
	24	AliTRDtracker();
	25	AliTRDtracker(const Text_t* name, const Text_t* title);
	26	~AliTRDtracker();
	27
bbf92647	28	virtual void Clusters2Tracks();
	29	Double_t ExpectedSigmaY2(Double_t r, Double_t tgl, Double_t pt);
	30	Double_t ExpectedSigmaZ2(Double_t r, Double_t tgl);
	31	Int_t FindProlongation(AliTRDtrack& t, AliTRDtrackingSector *sec,
	32	Int_t s, Int_t rf=0);
	33	void GetEvent(const Char_t hitfile, const Char_t clusterfile);
	34	void SetUpSectors(AliTRDtrackingSector *sec);
46d29e70	35	virtual void MakeSeeds(Int_t inner, Int_t outer);
46d29e70	36	virtual void FindTracks();
bbf92647	37	virtual void UseClusters(AliTRDtrack t);
	38	virtual Int_t GetTrackLabel(AliTRDtrack t);
	39	Int_t WriteTracks(const Char_t *filename);
	40	void ReadClusters(TObjArray array, const Char_t filename,
	41	Int_t option = 1);
46d29e70	42
	43	protected:
	44
46d29e70	45	Int_t fEvent; // Event number
46d29e70	46
bbf92647	47	AliTRDgeometry *fGeom; // Pointer to TRD geometry
bbf92647	48
46d29e70	49	Int_t fNclusters; // Number of clusters in TRD
	50	TObjArray *fClusters; // List of clusters for all sectors
	51
	52	Int_t fNseeds; // Number of track seeds
	53	TObjArray *fSeeds; // List of track seeds
	54
	55	Int_t fNtracks; // Number of reconstructed tracks
	56	TObjArray *fTracks; // List of reconstructed tracks
	57
bbf92647	58	static const Int_t fSeedGap; // Distance between inner and outer
	59	// time bin in seeding
	60
	61	static const Int_t fSeedStep; // Step in iterations
	62	static const Float_t fSeedDepth; // Fraction of TRD allocated for seeding
	63	static const Float_t fSkipDepth; // Fraction of TRD which can be skipped
	64	// in track prolongation
	65	static const Double_t fMaxChi2; // max increment in track chi2
	66
	67	static const Float_t fMinClustersInTrack; // min fraction of clusters in track
	68	static const Float_t fMinClustersInSeed; // min fraction of clusters in seed
	69	static const Float_t fMaxSeedDeltaZ; // max dZ in MakeSeeds
	70	static const Float_t fMaxSeedC; // max initial curvature in MakeSeeds
	71	static const Float_t fMaxSeedTan; // max initial Tangens(lambda) in MakeSeeds
	72	static const Float_t fMaxSeedVertexZ; // max vertex Z in MakeSeeds
	73	static const Double_t fSeedErrorSY; // sy parameter in MakeSeeds
	74	static const Double_t fSeedErrorSY3; // sy3 parameter in MakeSeeds
	75	static const Double_t fSeedErrorSZ; // sz parameter in MakeSeeds
	76	static const Float_t fLabelFraction; // min fraction of clusters in GetTrackLabel
	77	static const Float_t fWideRoad; // max road width in FindProlongation
	78
46d29e70	79	ClassDef(AliTRDtracker,1) // manager base class
	80
	81	};
	82
	83	#endif