[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                               */ 

/* $Id$ */

#include "AliTracker.h" 
#include "TObjArray.h" 
#include "AliBarrelTrack.h"

#include <TNamed.h>
#include <TH1.h>   

class TFile;
class TParticle;
class TParticlePDG;

class AliTRDgeometry;
class AliTRDparameter;
class AliTRDtrack;
class AliTRDcluster;
class AliTRDmcTrack;

const unsigned kMAX_LAYERS_PER_SECTOR = 1000;  
const unsigned kMAX_TIME_BIN_INDEX = 216;  // (30 drift + 6 ampl) * 6 planes  
const unsigned kMAX_CLUSTER_PER_TIME_BIN = 7000; 
const unsigned kZONES = 5; 
const Int_t kTRACKING_SECTORS = 18; 

class AliTRDtracker : public AliTracker {

 public:

  AliTRDtracker():AliTracker() {} 
  AliTRDtracker(const TFile *in);
  ~AliTRDtracker(); 

  Int_t         Clusters2Tracks(const TFile *in, TFile *out);
  Int_t         PropagateBack(const TFile *in, TFile *out);
  Int_t         PropagateBack();//Almost empty see .cxx for more comments
  Int_t         Clusters2Tracks();//Almost empty see .cxx for more comments

  Int_t         LoadClusters() {LoadEvent(); return 0;};
  void          UnloadClusters() {UnloadEvent();};
  AliCluster   *GetCluster(Int_t index) const { return (AliCluster*) fClusters->UncheckedAt(index); };
  virtual void  CookLabel(AliKalmanTrack *t,Float_t wrong) const;
  virtual void  UseClusters(const AliKalmanTrack *t, Int_t from=0) const;  
  
  void          SetAddTRDseeds() { fAddTRDseeds = kTRUE; }
  void          SetNoTilt() { fNoTilt = kTRUE; }

  Double_t      GetTiltFactor(const AliTRDcluster* c);

  void          ReadClusters(TObjArray *array, const Char_t *filename); 
  Int_t         CookSectorIndex(Int_t gs) { return kTRACKING_SECTORS - 1 - gs; }


  Float_t  GetSeedGap()       const {return fgkSeedGap;}   
  Int_t    GetMaxGap()        const {return fMaxGap;}   
  Int_t    GetTimeBinsPerPlane()   const {return fTimeBinsPerPlane;}   
  Float_t  GetSeedStep()      const {return fgkSeedStep;}
  Float_t  GetSeedDepth()     const {return fgkSeedDepth;}
  Float_t  GetSkipDepth()     const {return fgkSkipDepth;}
  Double_t GetMaxChi2()       const {return fgkMaxChi2;}
  Float_t  GetMaxSeedC()      const {return fgkMaxSeedC;}
  Float_t  GetMaxSeedTan()    const {return fgkMaxSeedTan;}
  Double_t GetSeedErrorSY()   const {return fgkSeedErrorSY;}
  Double_t GetSeedErrorSY3()  const {return fgkSeedErrorSY3;}
  Double_t GetSeedErrorSZ()   const {return fgkSeedErrorSZ;}
  Float_t  GetLabelFraction() const {return fgkLabelFraction;}
  Float_t  GetWideRoad()      const {return fgkWideRoad;}

  Float_t  GetMinClustersInTrack() const {return fgkMinClustersInTrack;}
  Float_t  GetMinClustersInSeed()  const {return fgkMinClustersInSeed;} 
  Float_t  GetMaxSeedDeltaZ()      const {return fgkMaxSeedDeltaZ;}
  Float_t  GetMaxSeedVertexZ()     const {return fgkMaxSeedVertexZ;}

  // x <-> timebin conversions useful in analysis macros
  Double_t GetX(Int_t sec, Int_t plane, Int_t local_tb) const;
  Double_t GetX(Int_t sec, Int_t pl) const { 
    return fTrSec[sec]->GetLayer(pl)->GetX(); }
  Int_t GetGlobalTimeBin(Int_t sec, Int_t plane, Int_t local_tb) const {
    return fTrSec[sec]->CookTimeBinIndex(plane,local_tb); }
  Double_t GetLayerNumber(Int_t sec, Double_t x) const {
    return fTrSec[sec]->GetLayerNumber(x); }

 public:
   class AliTRDpropagationLayer {
   // *****************  internal class *******************
   public: 
     AliTRDpropagationLayer(Double_t x, Double_t dx, Double_t rho, 
                            Double_t x0, Int_t tb_index); 

     ~AliTRDpropagationLayer() { 
       if(fTimeBinIndex >= 0) { delete[] fClusters; delete[] fIndex; }
     }
     void InsertCluster(AliTRDcluster*, UInt_t);
     operator       Int_t() const {return fN;}
     AliTRDcluster* operator[](Int_t i) {return fClusters[i];}
     UInt_t         GetIndex(Int_t i) const {return fIndex[i];} 
     Double_t       GetX() const { return fX; }
     Double_t       GetdX() const { return fdX; }
     Double_t       GetRho() const { return fRho; }
     Double_t       GetX0() const { return fX0; }
     Int_t          GetTimeBinIndex() const { return fTimeBinIndex; }     
     void           GetPropagationParameters(Double_t y, Double_t z,
                                Double_t &dx, Double_t &rho, Double_t &x0, 
                                Bool_t &lookForCluster) const;
     Int_t          Find(Double_t y) const; 
     void           SetZmax(Int_t cham, Double_t center, Double_t w)
                      { fZc[cham] = center;  fZmax[cham] = w; }
     void           SetYmax(Double_t w) { fYmax = w; }
     Double_t       GetYmax() const { return fYmax; }
     Double_t       GetZmax(Int_t c) const { return fZmax[c]; }
     Double_t       GetZc(Int_t c) const { return fZc[c]; }
     
     void           SetHole(Double_t Zmax, Double_t Ymax,
                            Double_t rho = 1.29e-3, Double_t x0 = 36.66,
                            Double_t Yc = 0, Double_t Zc = 0);
                            
     Bool_t         IsSensitive() {return (fTimeBinIndex>=0)? kTRUE: kFALSE;}
                       
     void    Clear() {for(Int_t i=0; i<fN; i++) fClusters[i] = NULL; fN = 0;}
                   
   private:     

     Int_t         fN;
     AliTRDcluster **fClusters; // array of pointers to clusters
     UInt_t        *fIndex;     // array of cluster indexes
     Double_t       fX;         // x coordinate of the middle plane
     Double_t       fdX;        // radial thickness of the time bin
     Double_t       fRho;       // default density of the material 
     Double_t       fX0;        // default radiation length 
     Int_t          fTimeBinIndex;  // plane * F(local_tb)  
     Double_t       fZc[kZONES];  // Z position of the center for 5 active areas
     Double_t       fZmax[kZONES]; // half of active area length in Z
     Double_t       fYmax;        // half of active area length in Y

     Bool_t         fHole;        // kTRUE if there is a hole in the layer
     Double_t       fHoleZc;      // Z of the center of the hole 
     Double_t       fHoleZmax;    // half of the hole length in Z
     Double_t       fHoleYc;      // Y of the center of the hole 
     Double_t       fHoleYmax;    // half of the hole length in Y 
     Double_t       fHoleRho;     // density of the gas in the hole 
     Double_t       fHoleX0;      // radiation length of the gas in the hole 
   };

   class AliTRDtrackingSector {
   public:
     AliTRDtrackingSector(AliTRDgeometry* geo, Int_t gs, AliTRDparameter* par);
     ~AliTRDtrackingSector() { for(Int_t i=0; i<fN; i++) delete fLayers[i]; }
     Int_t    GetNumberOfLayers() const { return fN; }
     Int_t    GetNumberOfTimeBins() const;
     Double_t GetX(Int_t pl) const { return fLayers[pl]->GetX(); }
     void     MapTimeBinLayers();
     Int_t    GetLayerNumber(Double_t x) const;
     Int_t    GetInnerTimeBin() const;
     Int_t    GetOuterTimeBin() const;
     Int_t    GetLayerNumber(Int_t tb) const {return fTimeBinIndex[tb];}
     Float_t  GetTzeroShift() const { return fTzeroShift; }   
     Int_t    Find(Double_t x) const; 
     void     InsertLayer(AliTRDpropagationLayer* pl);
     //     AliTRDpropagationLayer* operator[](Int_t i) { return fLayers[i]; }
     AliTRDpropagationLayer* GetLayer(Int_t i) { return fLayers[i]; }
     Int_t    CookTimeBinIndex(Int_t plane, Int_t local_tb) const;     

   private:
     Int_t                     fN;      // total number of layers
     AliTRDgeometry            *fGeom;     
     AliTRDparameter           *fPar;     
     AliTRDpropagationLayer    *fLayers[kMAX_LAYERS_PER_SECTOR];     
     Int_t                     fTimeBinIndex[kMAX_TIME_BIN_INDEX];     
     Float_t                   fTzeroShift;   // T0 shift in cm
     Int_t                     fGeomSector;   // sector # in AliTRDgeometry
   };

 private:

  void          LoadEvent();
  void          UnloadEvent();

  virtual void  MakeSeeds(Int_t inner, Int_t outer, Int_t turn);

  Int_t         FollowProlongation(AliTRDtrack& t, Int_t rf);
  Int_t         FollowBackProlongation(AliTRDtrack& t);
  //Int_t         FolowRefitInward(AliTRDtrack *seed, AliTPCtrack *track);

  Int_t         PropagateToTPC(AliTRDtrack& t);
  Int_t         PropagateToOuterPlane(AliTRDtrack& t, Double_t x);

  Int_t         WriteTracks(); 
  void          ReadClusters(TObjArray *array, const TFile *in = 0);

  void          SetSY2corr(Float_t w)    {fSY2corr = w;}
  void          SetSZ2corr(Float_t w)    {fSZ2corr = w;}
  Double_t      ExpectedSigmaY2(Double_t r, Double_t tgl, Double_t pt);
  Double_t      ExpectedSigmaZ2(Double_t r, Double_t tgl);


 protected:

  AliTRDgeometry     *fGeom;            // Pointer to TRD geometry
  AliTRDparameter    *fPar;     

  AliTRDtrackingSector *fTrSec[kTRACKING_SECTORS];       
                                       // array of tracking sectors;    
  
  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   

  Float_t          fSY2corr;          // Correction coefficient for
                                      // cluster SigmaY2 

  Float_t          fSZ2corr;          // Correction coefficient for
                                      // cluster SigmaZ2 

  static const Float_t  fgkSeedGap;   // Distance between inner and outer
                                      // time bin in seeding 
                                      // (fraction of all time bins) 
  
  static const Float_t  fgkSeedStep;    // Step in iterations
  static const Float_t  fgkSeedDepth;   // Fraction of TRD allocated fgkor seeding
  static const Float_t  fgkSkipDepth;   // Fraction of TRD which can be skipped
                                      // in track prolongation		   
  Int_t       fTimeBinsPerPlane;      // number of sensitive timebins per plane
  Int_t       fMaxGap;                // max gap (in time bins) in the track  
                                      // in track prolongation		   

  static const Double_t fgkMaxChi2;     // max increment in track chi2 
 	
  static const Float_t  fgkMinClustersInTrack; // min number of clusters in track
                                             // out of total timebins

  static const Float_t  fgkMinFractionOfFoundClusters; // min fgkound clusters 
                                                     // out of expected  

  static const Float_t  fgkMinClustersInSeed;  // min fgkraction of clusters in seed
  static const Float_t  fgkMaxSeedDeltaZ;   // max dZ in MakeSeeds
  static const Float_t  fgkMaxSeedDeltaZ12; // max abs(z1-z2) in MakeSeeds
  static const Float_t  fgkMaxSeedC;       // max initial curvature in MakeSeeds
  static const Float_t  fgkMaxSeedTan;     // max initial Tangens(lambda) in MakeSeeds
  static const Float_t  fgkMaxSeedVertexZ; // max vertex Z in MakeSeeds
  static const Double_t fgkSeedErrorSY;    // sy parameter in MakeSeeds
  static const Double_t fgkSeedErrorSY3;   // sy3 parameter in MakeSeeds
  static const Double_t fgkSeedErrorSZ;    // sz parameter in MakeSeeds
  static const Float_t  fgkLabelFraction;  // min fgkraction of same label
  static const Float_t  fgkWideRoad;       // max road width in FindProlongation

  Bool_t                fVocal;   
  Bool_t                fAddTRDseeds;
 
  Bool_t                fNoTilt;
 
  
  Bool_t AdjustSector(AliTRDtrack *track); 
 
  
  // Barrel tracks [SR, 03.04.2003]

  static const Int_t kFirstPlane;   // Id of the first (innermost) reference plane 
  static const Int_t kLastPlane;    // Id of the last (outermost) reference plane
  
  void SetBarrelTree(const char *mode);
  void StoreBarrelTrack(AliTRDtrack *ps, Int_t refPlane, Int_t isIn);
  
  TFile *fBarrelFile;
  TTree *fBarrelTree;
  TClonesArray *fBarrelArray;
  AliBarrelTrack *fBarrelTrack;


  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
88cb7938	7	/* $Id$ */
88cb7938	8
5443e65e	9	#include "AliTracker.h"
e24ea474	10	#include "TObjArray.h"
9c9d2487	11	#include "AliBarrelTrack.h"
88cb7938	12
	13	#include <TNamed.h>
	14	#include <TH1.h>
46d29e70	15
46d29e70	16	class TFile;
bbf92647	17	class TParticle;
bbf92647	18	class TParticlePDG;
46d29e70	19
46d29e70	20	class AliTRDgeometry;
5443e65e	21	class AliTRDparameter;
46d29e70	22	class AliTRDtrack;
5443e65e	23	class AliTRDcluster;
bbf92647	24	class AliTRDmcTrack;
46d29e70	25
5443e65e	26	const unsigned kMAX_LAYERS_PER_SECTOR = 1000;
5443e65e	27	const unsigned kMAX_TIME_BIN_INDEX = 216; // (30 drift + 6 ampl) * 6 planes
b8dc2353	28	const unsigned kMAX_CLUSTER_PER_TIME_BIN = 7000;
5443e65e	29	const unsigned kZONES = 5;
	30	const Int_t kTRACKING_SECTORS = 18;
	31
88cb7938	32	class AliTRDtracker : public AliTracker {
46d29e70	33
	34	public:
	35
5443e65e	36	AliTRDtracker():AliTracker() {}
	37	AliTRDtracker(const TFile *in);
	38	~AliTRDtracker();
	39
	40	Int_t Clusters2Tracks(const TFile in, TFile out);
	41	Int_t PropagateBack(const TFile in, TFile out);
88cb7938	42	Int_t PropagateBack();//Almost empty see .cxx for more comments
88cb7938	43	Int_t Clusters2Tracks();//Almost empty see .cxx for more comments
9c9d2487	44
e24ea474	45	Int_t LoadClusters() {LoadEvent(); return 0;};
e24ea474	46	void UnloadClusters() {UnloadEvent();};
88cb7938	47	AliCluster GetCluster(Int_t index) const { return (AliCluster) fClusters->UncheckedAt(index); };
5443e65e	48	virtual void CookLabel(AliKalmanTrack *t,Float_t wrong) const;
	49	virtual void UseClusters(const AliKalmanTrack *t, Int_t from=0) const;
	50
5443e65e	51	void SetAddTRDseeds() { fAddTRDseeds = kTRUE; }
b8dc2353	52	void SetNoTilt() { fNoTilt = kTRUE; }
5443e65e	53
fd621f36	54	Double_t GetTiltFactor(const AliTRDcluster* c);
fd621f36	55
5443e65e	56	void ReadClusters(TObjArray array, const Char_t filename);
	57	Int_t CookSectorIndex(Int_t gs) { return kTRACKING_SECTORS - 1 - gs; }
	58
	59
88cb7938	60	Float_t GetSeedGap() const {return fgkSeedGap;}
5443e65e	61	Int_t GetMaxGap() const {return fMaxGap;}
5443e65e	62	Int_t GetTimeBinsPerPlane() const {return fTimeBinsPerPlane;}
88cb7938	63	Float_t GetSeedStep() const {return fgkSeedStep;}
	64	Float_t GetSeedDepth() const {return fgkSeedDepth;}
	65	Float_t GetSkipDepth() const {return fgkSkipDepth;}
	66	Double_t GetMaxChi2() const {return fgkMaxChi2;}
	67	Float_t GetMaxSeedC() const {return fgkMaxSeedC;}
	68	Float_t GetMaxSeedTan() const {return fgkMaxSeedTan;}
	69	Double_t GetSeedErrorSY() const {return fgkSeedErrorSY;}
	70	Double_t GetSeedErrorSY3() const {return fgkSeedErrorSY3;}
	71	Double_t GetSeedErrorSZ() const {return fgkSeedErrorSZ;}
	72	Float_t GetLabelFraction() const {return fgkLabelFraction;}
	73	Float_t GetWideRoad() const {return fgkWideRoad;}
	74
	75	Float_t GetMinClustersInTrack() const {return fgkMinClustersInTrack;}
	76	Float_t GetMinClustersInSeed() const {return fgkMinClustersInSeed;}
	77	Float_t GetMaxSeedDeltaZ() const {return fgkMaxSeedDeltaZ;}
	78	Float_t GetMaxSeedVertexZ() const {return fgkMaxSeedVertexZ;}
5443e65e	79
	80	// x <-> timebin conversions useful in analysis macros
	81	Double_t GetX(Int_t sec, Int_t plane, Int_t local_tb) const;
	82	Double_t GetX(Int_t sec, Int_t pl) const {
	83	return fTrSec[sec]->GetLayer(pl)->GetX(); }
	84	Int_t GetGlobalTimeBin(Int_t sec, Int_t plane, Int_t local_tb) const {
	85	return fTrSec[sec]->CookTimeBinIndex(plane,local_tb); }
	86	Double_t GetLayerNumber(Int_t sec, Double_t x) const {
	87	return fTrSec[sec]->GetLayerNumber(x); }
	88
	89	public:
	90	class AliTRDpropagationLayer {
	91	// *************** internal class *****************
	92	public:
	93	AliTRDpropagationLayer(Double_t x, Double_t dx, Double_t rho,
b8dc2353	94	Double_t x0, Int_t tb_index);
5443e65e	95
	96	~AliTRDpropagationLayer() {
	97	if(fTimeBinIndex >= 0) { delete[] fClusters; delete[] fIndex; }
	98	}
	99	void InsertCluster(AliTRDcluster*, UInt_t);
	100	operator Int_t() const {return fN;}
	101	AliTRDcluster* operator[](Int_t i) {return fClusters[i];}
	102	UInt_t GetIndex(Int_t i) const {return fIndex[i];}
	103	Double_t GetX() const { return fX; }
	104	Double_t GetdX() const { return fdX; }
	105	Double_t GetRho() const { return fRho; }
	106	Double_t GetX0() const { return fX0; }
	107	Int_t GetTimeBinIndex() const { return fTimeBinIndex; }
	108	void GetPropagationParameters(Double_t y, Double_t z,
b8dc2353	109	Double_t &dx, Double_t &rho, Double_t &x0,
5443e65e	110	Bool_t &lookForCluster) const;
	111	Int_t Find(Double_t y) const;
	112	void SetZmax(Int_t cham, Double_t center, Double_t w)
	113	{ fZc[cham] = center; fZmax[cham] = w; }
	114	void SetYmax(Double_t w) { fYmax = w; }
	115	Double_t GetYmax() const { return fYmax; }
	116	Double_t GetZmax(Int_t c) const { return fZmax[c]; }
	117	Double_t GetZc(Int_t c) const { return fZc[c]; }
	118
	119	void SetHole(Double_t Zmax, Double_t Ymax,
b8dc2353	120	Double_t rho = 1.29e-3, Double_t x0 = 36.66,
	121	Double_t Yc = 0, Double_t Zc = 0);
	122
9c9d2487	123	Bool_t IsSensitive() {return (fTimeBinIndex>=0)? kTRUE: kFALSE;}
9c9d2487	124
5443e65e	125	void Clear() {for(Int_t i=0; i<fN; i++) fClusters[i] = NULL; fN = 0;}
	126
	127	private:
	128
	129	Int_t fN;
	130	AliTRDcluster **fClusters; // array of pointers to clusters
	131	UInt_t *fIndex; // array of cluster indexes
	132	Double_t fX; // x coordinate of the middle plane
	133	Double_t fdX; // radial thickness of the time bin
	134	Double_t fRho; // default density of the material
	135	Double_t fX0; // default radiation length
	136	Int_t fTimeBinIndex; // plane * F(local_tb)
	137	Double_t fZc[kZONES]; // Z position of the center for 5 active areas
	138	Double_t fZmax[kZONES]; // half of active area length in Z
	139	Double_t fYmax; // half of active area length in Y
	140
	141	Bool_t fHole; // kTRUE if there is a hole in the layer
	142	Double_t fHoleZc; // Z of the center of the hole
	143	Double_t fHoleZmax; // half of the hole length in Z
	144	Double_t fHoleYc; // Y of the center of the hole
	145	Double_t fHoleYmax; // half of the hole length in Y
	146	Double_t fHoleRho; // density of the gas in the hole
	147	Double_t fHoleX0; // radiation length of the gas in the hole
	148	};
	149
	150	class AliTRDtrackingSector {
	151	public:
	152	AliTRDtrackingSector(AliTRDgeometry* geo, Int_t gs, AliTRDparameter* par);
	153	~AliTRDtrackingSector() { for(Int_t i=0; i<fN; i++) delete fLayers[i]; }
	154	Int_t GetNumberOfLayers() const { return fN; }
	155	Int_t GetNumberOfTimeBins() const;
	156	Double_t GetX(Int_t pl) const { return fLayers[pl]->GetX(); }
	157	void MapTimeBinLayers();
	158	Int_t GetLayerNumber(Double_t x) const;
	159	Int_t GetInnerTimeBin() const;
	160	Int_t GetOuterTimeBin() const;
	161	Int_t GetLayerNumber(Int_t tb) const {return fTimeBinIndex[tb];}
	162	Float_t GetTzeroShift() const { return fTzeroShift; }
	163	Int_t Find(Double_t x) const;
	164	void InsertLayer(AliTRDpropagationLayer* pl);
	165	// AliTRDpropagationLayer* operator[](Int_t i) { return fLayers[i]; }
	166	AliTRDpropagationLayer* GetLayer(Int_t i) { return fLayers[i]; }
	167	Int_t CookTimeBinIndex(Int_t plane, Int_t local_tb) const;
	168
	169	private:
	170	Int_t fN; // total number of layers
	171	AliTRDgeometry *fGeom;
	172	AliTRDparameter *fPar;
	173	AliTRDpropagationLayer *fLayers[kMAX_LAYERS_PER_SECTOR];
	174	Int_t fTimeBinIndex[kMAX_TIME_BIN_INDEX];
	175	Float_t fTzeroShift; // T0 shift in cm
	176	Int_t fGeomSector; // sector # in AliTRDgeometry
	177	};
	178
	179	private:
	180
	181	void LoadEvent();
	182	void UnloadEvent();
	183
	184	virtual void MakeSeeds(Int_t inner, Int_t outer, Int_t turn);
	185
	186	Int_t FollowProlongation(AliTRDtrack& t, Int_t rf);
	187	Int_t FollowBackProlongation(AliTRDtrack& t);
9c9d2487	188	//Int_t FolowRefitInward(AliTRDtrack seed, AliTPCtrack track);
5443e65e	189
	190	Int_t PropagateToTPC(AliTRDtrack& t);
	191	Int_t PropagateToOuterPlane(AliTRDtrack& t, Double_t x);
	192
	193	Int_t WriteTracks();
	194	void ReadClusters(TObjArray array, const TFile in = 0);
	195
	196	void SetSY2corr(Float_t w) {fSY2corr = w;}
	197	void SetSZ2corr(Float_t w) {fSZ2corr = w;}
	198	Double_t ExpectedSigmaY2(Double_t r, Double_t tgl, Double_t pt);
	199	Double_t ExpectedSigmaZ2(Double_t r, Double_t tgl);
	200
46d29e70	201
	202	protected:
	203
5443e65e	204	AliTRDgeometry *fGeom; // Pointer to TRD geometry
5443e65e	205	AliTRDparameter *fPar;
bbf92647	206
5443e65e	207	AliTRDtrackingSector *fTrSec[kTRACKING_SECTORS];
	208	// array of tracking sectors;
	209
46d29e70	210	Int_t fNclusters; // Number of clusters in TRD
	211	TObjArray *fClusters; // List of clusters for all sectors
	212
	213	Int_t fNseeds; // Number of track seeds
	214	TObjArray *fSeeds; // List of track seeds
	215
	216	Int_t fNtracks; // Number of reconstructed tracks
	217	TObjArray *fTracks; // List of reconstructed tracks
	218
a819a5f7	219	Float_t fSY2corr; // Correction coefficient for
	220	// cluster SigmaY2
	221
5443e65e	222	Float_t fSZ2corr; // Correction coefficient for
	223	// cluster SigmaZ2
	224
88cb7938	225	static const Float_t fgkSeedGap; // Distance between inner and outer
0a29d0f1	226	// time bin in seeding
b8dc2353	227	// (fraction of all time bins)
bbf92647	228
88cb7938	229	static const Float_t fgkSeedStep; // Step in iterations
	230	static const Float_t fgkSeedDepth; // Fraction of TRD allocated fgkor seeding
	231	static const Float_t fgkSkipDepth; // Fraction of TRD which can be skipped
	232	// in track prolongation
5443e65e	233	Int_t fTimeBinsPerPlane; // number of sensitive timebins per plane
5443e65e	234	Int_t fMaxGap; // max gap (in time bins) in the track
88cb7938	235	// in track prolongation
5443e65e	236
88cb7938	237	static const Double_t fgkMaxChi2; // max increment in track chi2
	238
	239	static const Float_t fgkMinClustersInTrack; // min number of clusters in track
5443e65e	240	// out of total timebins
5443e65e	241
88cb7938	242	static const Float_t fgkMinFractionOfFoundClusters; // min fgkound clusters
5443e65e	243	// out of expected
5443e65e	244
88cb7938	245	static const Float_t fgkMinClustersInSeed; // min fgkraction of clusters in seed
	246	static const Float_t fgkMaxSeedDeltaZ; // max dZ in MakeSeeds
	247	static const Float_t fgkMaxSeedDeltaZ12; // max abs(z1-z2) in MakeSeeds
	248	static const Float_t fgkMaxSeedC; // max initial curvature in MakeSeeds
	249	static const Float_t fgkMaxSeedTan; // max initial Tangens(lambda) in MakeSeeds
	250	static const Float_t fgkMaxSeedVertexZ; // max vertex Z in MakeSeeds
	251	static const Double_t fgkSeedErrorSY; // sy parameter in MakeSeeds
	252	static const Double_t fgkSeedErrorSY3; // sy3 parameter in MakeSeeds
	253	static const Double_t fgkSeedErrorSZ; // sz parameter in MakeSeeds
	254	static const Float_t fgkLabelFraction; // min fgkraction of same label
	255	static const Float_t fgkWideRoad; // max road width in FindProlongation
5443e65e	256
	257	Bool_t fVocal;
	258	Bool_t fAddTRDseeds;
88cb7938	259
b8dc2353	260	Bool_t fNoTilt;
bbf92647	261
9c9d2487	262
	263	Bool_t AdjustSector(AliTRDtrack *track);
	264
	265
	266	// Barrel tracks [SR, 03.04.2003]
	267
	268	static const Int_t kFirstPlane; // Id of the first (innermost) reference plane
	269	static const Int_t kLastPlane; // Id of the last (outermost) reference plane
	270
	271	void SetBarrelTree(const char *mode);
	272	void StoreBarrelTrack(AliTRDtrack *ps, Int_t refPlane, Int_t isIn);
	273
	274	TFile *fBarrelFile;
	275	TTree *fBarrelTree;
	276	TClonesArray *fBarrelArray;
	277	AliBarrelTrack *fBarrelTrack;
	278
	279
46d29e70	280	ClassDef(AliTRDtracker,1) // manager base class
	281
	282	};
	283
	284	#endif