[u/mrichter/AliRoot.git] / TPC / AliTPCtrackerMI.h

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

/* $Id$ */

//-------------------------------------------------------
//                       TPC trackerMI
//
//   Origin: 
//-------------------------------------------------------
#include "AliTracker.h"
#include "AliTPCtrack.h"
#include "AliTPCClustersArray.h"

#include "AliTPCreco.h" 
#include "Rtypes.h"

class TFile;
class AliTPCParam;
class AliTPCseed;
class AliTPCclusterMI;
class AliTPCTrackPoint;


class AliTPCclusterTracks {
 public: 
  AliTPCclusterTracks();
  Float_t fDistance[3];   // distance to the 3 nerest track if there overlap with cluster
  Short_t fTrackIndex[3]; // indexes of the  tracks overlapped with clusters 
};


class AliTPCseed : public AliTPCtrack {
   public:
     AliTPCseed();
     virtual ~AliTPCseed();
     AliTPCseed(const AliTPCtrack &t);
     AliTPCseed(const AliKalmanTrack &t, Double_t a);
     Int_t Compare(const TObject *o) const;

     Int_t GetProlongation(Double_t xr, Double_t &y, Double_t & z) const;
     virtual Double_t GetPredictedChi2(const AliTPCclusterMI *cluster) const;
     virtual Int_t Update(const AliTPCclusterMI* c, Double_t chi2, UInt_t i);
     AliTPCTrackPoint * GetTrackPoint(Int_t i);
     void RebuildSeed(); // rebuild seed to be ready for storing
     AliTPCseed(UInt_t index, const Double_t xx[5], 
                const Double_t cc[15], Double_t xr, Double_t alpha);
     void SetClusterIndex(Int_t index){
       fClusterIndex[fRow] = index;
     }
     void SetErrorY2(Float_t sy2){fErrorY2=sy2;}
     void SetErrorZ2(Float_t sz2){fErrorZ2=sz2;}
     void CookdEdx(Double_t low=0.05, Double_t up=0.70);
     Bool_t IsActive(){ return !(fRemoval);}
     void Desactivate(Int_t reason){ fRemoval = reason;} 
     Int_t fRelativeSector;  // ! index of current relative sector
     Int_t   fClusterIndex[200];  //array of cluster indexes
    
     Int_t fRemoval;               //reason - why was track removed - 0 - means still active     
     TClonesArray * fPoints;              // array with points along the track   
     TClonesArray * fEPoints;             // array with exact points - calculated in special macro not used in tracking
     Int_t fRow;                 //! current row number  
     Int_t fSector;              //!current sector number
     Float_t fCurrentSigmaY;     //!expected current cluster sigma Y
     Float_t fCurrentSigmaZ;     //!expected current cluster sigma Z
     AliTPCclusterMI * fCurrentCluster; //!pointer to the current cluster for prolongation
     Int_t   fCurrentClusterIndex1; //! index of the current cluster
     Int_t   fCurrentClusterIndex2; //! index of the current cluster
    
     Float_t fErrorY2;   //!sigma of current cluster 
     Float_t fErrorZ2;   //!sigma of current cluster    
     Int_t   fNFoundable;      //number of foundable clusters - dead zone taken to the account
     Bool_t  fInDead;         // indicate if the track is in dead zone
     Int_t   fFirstPoint;    // first cluster position
     Int_t   fLastPoint;     // last  cluster position     
     Int_t   fNShared;       // number of shared points
     Bool_t  fIsSeeding;     //indicates if it is proces of seeading
   private:
     Float_t fSdEdx;           // sigma of dedx
     Float_t fMAngular;        // mean angular factor
     AliTPCTrackPoint   ** fTrackPoints;  //!track points - array track points
     Float_t fDEDX[4];         // dedx according padrows
     Float_t fSDEDX[4];        // sdedx according padrows
     Int_t   fNCDEDX[4];       // number of clusters for dedx measurment
   
     ClassDef(AliTPCseed,1)  
};


class AliTPCtrackerMI : public AliTracker {
public:
   AliTPCtrackerMI():AliTracker(),fkNIS(0),fkNOS(0) {
      fInnerSec=fOuterSec=0; fSeeds=0; 
   }
   AliTPCtrackerMI(const AliTPCParam *par, Int_t eventn=0);
  ~AliTPCtrackerMI();

   Int_t ReadSeeds(const TFile *in);
   void LoadClusters();
   void UnloadClusters();

   void LoadInnerSectors();
   void LoadOuterSectors();
   AliCluster * GetCluster (int) const {return 0;}
   AliTPCclusterMI *GetClusterMI(Int_t index) const;
   Int_t Clusters2Tracks(const TFile *in, TFile *out);
   //   Int_t PropagateBack(const TFile *in, TFile *out);

   virtual void  CookLabel(AliKalmanTrack *t,Float_t wrong) const; 

   virtual Double_t ErrY2(AliTPCseed* seed, AliTPCclusterMI * cl = 0);
   virtual Double_t ErrZ2(AliTPCseed* seed, AliTPCclusterMI * cl = 0);   

   Double_t f1(Double_t x1,Double_t y1, Double_t x2,Double_t y2, Double_t x3,Double_t y3); 
   Double_t f2(Double_t x1,Double_t y1, Double_t x2,Double_t y2, Double_t x3,Double_t y3); 
   Double_t f3(Double_t x1,Double_t y1, Double_t x2,Double_t y2, Double_t z1,Double_t z2); 
public:
//**************** Internal tracker class ********************** 
   class AliTPCRow {
   public:
     AliTPCRow() {fN=0; fClusterTracks=0;}
     ~AliTPCRow();
     void InsertCluster(const AliTPCclusterMI *c, UInt_t index);
     operator int() const {return fN;}
     const AliTPCclusterMI* operator[](Int_t i) const {return fClusters[i];}
     UInt_t GetIndex(Int_t i) const {return fIndex[i];}
     Int_t Find(Double_t z) const; 
     void SetX(Double_t x) {fX=x;}
     Double_t GetX() const {return fX;}
     AliTPCclusterTracks *  GetClusterTracks(Int_t index){ return ( (index<fN) && fClusterTracks!=0)? &(fClusterTracks[index]):0;}
     void UpdateClusterTrack(Int_t clindex, Int_t trindex,AliTPCseed * seed); 
     void MakeClusterTracks();
     void ClearClusterTracks();
     Float_t fDeadZone;  // the width of the dead zone
   private:
     Int_t fN;                                          //number of clusters 
     const AliTPCclusterMI *fClusters[kMaxClusterPerRow]; //pointers to clusters
     UInt_t fIndex[kMaxClusterPerRow];                  //indeces of clusters
     Double_t fX;                                 //X-coordinate of this row
     AliTPCclusterTracks * fClusterTracks;        // array of cluster tracks - for overlap calculation
   private:
     AliTPCRow(const AliTPCRow& r);            //dummy copy constructor
     AliTPCRow &operator=(const AliTPCRow& r); //dummy assignment operator
   };

//**************** Internal tracker class ********************** 
   class AliTPCSector {
   public:
     AliTPCSector() { fN=0; fRow = 0; }
    ~AliTPCSector() { delete[] fRow; }
     AliTPCRow& operator[](Int_t i) const { return *(fRow+i); }
     Int_t GetNRows() const { return fN; }
     void Setup(const AliTPCParam *par, Int_t flag);
     Double_t GetX(Int_t l) const {return fRow[l].GetX();}
     Double_t GetMaxY(Int_t l) const {
         return GetX(l)*TMath::Tan(0.5*GetAlpha());
     } 
     Double_t GetAlpha() const {return fAlpha;}
     Double_t GetAlphaShift() const {return fAlphaShift;}     
     Int_t GetRowNumber(Double_t x) const {
        //return pad row number for this x
       Double_t r;
       if (fN < 64){
         r=fRow[fN-1].GetX();
         if (x > r) return fN;
         r=fRow[0].GetX();
         if (x < r) return -1;
         return Int_t((x-r)/fPadPitchLength + 0.5);}
       else{    
           r=fRow[fN-1].GetX();
           if (x > r) return fN;
           r=fRow[0].GetX();
           if (x < r) return -1;
          Double_t r1=fRow[64].GetX();
          if(x<r1){       
            return Int_t((x-r)/f1PadPitchLength + 0.5);}
          else{
            return (Int_t((x-r1)/f2PadPitchLength + 0.5)+64);} 
       }
     }
     Double_t GetPadPitchWidth()  const {return fPadPitchWidth;}
     Double_t GetPadPitchLength() const {return fPadPitchLength;}
     Double_t GetPadPitchLength(Float_t x) const {return (x<200) ? fPadPitchLength:f2PadPitchLength ;}

   private:
     Int_t fN;                        //number of pad rows 
     AliTPCRow *fRow;                    //array of pad rows
     Double_t fAlpha;                    //opening angle
     Double_t fAlphaShift;               //shift angle;
     Double_t fPadPitchWidth;            //pad pitch width
     Double_t fPadPitchLength;           //pad pitch length
     Double_t f1PadPitchLength;           //pad pitch length
     Double_t f2PadPitchLength;           //pad pitch length
    
   private:
     AliTPCSector(const AliTPCSector &s);           //dummy copy contructor
     AliTPCSector& operator=(const AliTPCSector &s);//dummy assignment operator
   };

   Float_t OverlapFactor(AliTPCseed * s1, AliTPCseed * s2, Int_t &sum1, Int_t &sum2);
   void  SignShared(AliTPCseed * s1, AliTPCseed * s2);
   void  RemoveOverlap(TObjArray * arr, Float_t factor, Int_t removalindex, Bool_t shared=kFALSE);
private:
   Float_t  GetSigmaY(AliTPCseed * seed);
   Float_t  GetSigmaZ(AliTPCseed * seed);

   void MakeSeeds(TObjArray * arr, Int_t sec, Int_t i1, Int_t i2);
   TObjArray * MakeSeedsSectors(Int_t sec1, Int_t sec2);   // make seeds from all sectors
   void MakeSeedsAll();
   Int_t FollowProlongation(AliTPCseed& t, Int_t rf=0);
   //Int_t FollowProlongationFast(AliTPCseed& t, Int_t step);   
   Int_t FollowBackProlongation(AliTPCseed& t, Int_t rf=0);

   Int_t FollowToNext(AliTPCseed& t, Int_t nr);
   Int_t UpdateClusters(AliTPCseed& t, Int_t trindex,  Int_t nr);
   Int_t FollowToNextCluster( Int_t trindex, Int_t nr);

   virtual Int_t PropagateBack (const TFile *, TFile *){return 0;}
   void ParallelTracking(Int_t rfirst, Int_t rlast);
   void SetSampledEdx(AliTPCseed *t, Float_t q, Int_t i) {;}
   Int_t UpdateTrack(AliTPCseed *t,AliTPCclusterMI* c, Double_t chi2, UInt_t i); //update trackinfo

   //   Int_t FollowBackProlongation(AliTPCseed &s, const AliTPCtrack &t);

   AliTPCtrackerMI(const AliTPCtrackerMI& r);           //dummy copy constructor
   AliTPCtrackerMI &operator=(const AliTPCtrackerMI& r);//dummy assignment operator

   const Int_t fkNIS;        //number of inner sectors
   AliTPCSector *fInnerSec;  //array of inner sectors;
   const Int_t fkNOS;        //number of outer sectors
   AliTPCSector *fOuterSec;  //array of outer sectors;

   Int_t fN;               //number of loaded sectors
   AliTPCSector *fSectors; //pointer to loaded sectors;

   Int_t fEventN;                      //event number
   AliTPCClustersArray fClustersArray; //array of TPC clusters
   Int_t fNtracks;                     //current number of tracks
   TObjArray *fSeeds;                  //array of track seeds
   //   TObjArray * fTrackPointPool;        // ! pool with track points
   const AliTPCParam *fParam;          //pointer to the parameters
};

#endif
Commit	Line	Data
1c53abe2	1	#ifndef ALITPCTRACKERMI_H
	2	#define ALITPCTRACKERMI_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	//-------------------------------------------------------
	9	// TPC trackerMI
	10	//
	11	// Origin:
	12	//-------------------------------------------------------
	13	#include "AliTracker.h"
	14	#include "AliTPCtrack.h"
	15	#include "AliTPCClustersArray.h"
	16
	17	#include "AliTPCreco.h"
	18	#include "Rtypes.h"
	19
	20	class TFile;
	21	class AliTPCParam;
	22	class AliTPCseed;
	23	class AliTPCclusterMI;
	24	class AliTPCTrackPoint;
	25
	26
	27
	28	class AliTPCclusterTracks {
	29	public:
	30	AliTPCclusterTracks();
	31	Float_t fDistance[3]; // distance to the 3 nerest track if there overlap with cluster
	32	Short_t fTrackIndex[3]; // indexes of the tracks overlapped with clusters
	33	};
	34
	35
	36	class AliTPCseed : public AliTPCtrack {
	37	public:
	38	AliTPCseed();
	39	virtual ~AliTPCseed();
	40	AliTPCseed(const AliTPCtrack &t);
	41	AliTPCseed(const AliKalmanTrack &t, Double_t a);
	42	Int_t Compare(const TObject *o) const;
	43
	44	Int_t GetProlongation(Double_t xr, Double_t &y, Double_t & z) const;
	45	virtual Double_t GetPredictedChi2(const AliTPCclusterMI *cluster) const;
	46	virtual Int_t Update(const AliTPCclusterMI* c, Double_t chi2, UInt_t i);
	47	AliTPCTrackPoint * GetTrackPoint(Int_t i);
	48	void RebuildSeed(); // rebuild seed to be ready for storing
	49	AliTPCseed(UInt_t index, const Double_t xx[5],
	50	const Double_t cc[15], Double_t xr, Double_t alpha);
	51	void SetClusterIndex(Int_t index){
	52	fClusterIndex[fRow] = index;
	53	}
	54	void SetErrorY2(Float_t sy2){fErrorY2=sy2;}
	55	void SetErrorZ2(Float_t sz2){fErrorZ2=sz2;}
	56	void CookdEdx(Double_t low=0.05, Double_t up=0.70);
	57	Bool_t IsActive(){ return !(fRemoval);}
	58	void Desactivate(Int_t reason){ fRemoval = reason;}
	59	Int_t fRelativeSector; // ! index of current relative sector
	60	Int_t fClusterIndex[200]; //array of cluster indexes
	61
	62	Int_t fRemoval; //reason - why was track removed - 0 - means still active
	63	TClonesArray * fPoints; // array with points along the track
	64	TClonesArray * fEPoints; // array with exact points - calculated in special macro not used in tracking
65	Int_t fRow; //! current row number
66	Int_t fSector; //!current sector number
67	Float_t fCurrentSigmaY; //!expected current cluster sigma Y
68	Float_t fCurrentSigmaZ; //!expected current cluster sigma Z
69	AliTPCclusterMI * fCurrentCluster; //!pointer to the current cluster for prolongation
70	Int_t fCurrentClusterIndex1; //! index of the current cluster
71	Int_t fCurrentClusterIndex2; //! index of the current cluster
72
73	Float_t fErrorY2; //!sigma of current cluster
74	Float_t fErrorZ2; //!sigma of current cluster
75	Int_t fNFoundable; //number of foundable clusters - dead zone taken to the account
76	Bool_t fInDead; // indicate if the track is in dead zone
77	Int_t fFirstPoint; // first cluster position
78	Int_t fLastPoint; // last cluster position
79	Int_t fNShared; // number of shared points
80	Bool_t fIsSeeding; //indicates if it is proces of seeading
81	private:
82	Float_t fSdEdx; // sigma of dedx
83	Float_t fMAngular; // mean angular factor
84	AliTPCTrackPoint ** fTrackPoints; //!track points - array track points
85	Float_t fDEDX[4]; // dedx according padrows
86	Float_t fSDEDX[4]; // sdedx according padrows
87	Int_t fNCDEDX[4]; // number of clusters for dedx measurment
88
89	ClassDef(AliTPCseed,1)
90	};
91
92
93
94
95	class AliTPCtrackerMI : public AliTracker {
96	public:
97	AliTPCtrackerMI():AliTracker(),fkNIS(0),fkNOS(0) {
98	fInnerSec=fOuterSec=0; fSeeds=0;
99	}
100	AliTPCtrackerMI(const AliTPCParam *par, Int_t eventn=0);
101	~AliTPCtrackerMI();
102
103	Int_t ReadSeeds(const TFile *in);
104	void LoadClusters();
105	void UnloadClusters();
106
107	void LoadInnerSectors();
108	void LoadOuterSectors();
109	AliCluster * GetCluster (int) const {return 0;}
110	AliTPCclusterMI *GetClusterMI(Int_t index) const;
111	Int_t Clusters2Tracks(const TFile in, TFile out);
112	// Int_t PropagateBack(const TFile in, TFile out);
113
114	virtual void CookLabel(AliKalmanTrack *t,Float_t wrong) const;
115
116	virtual Double_t ErrY2(AliTPCseed* seed, AliTPCclusterMI * cl = 0);
117	virtual Double_t ErrZ2(AliTPCseed* seed, AliTPCclusterMI * cl = 0);
118
119	Double_t f1(Double_t x1,Double_t y1, Double_t x2,Double_t y2, Double_t x3,Double_t y3);
120	Double_t f2(Double_t x1,Double_t y1, Double_t x2,Double_t y2, Double_t x3,Double_t y3);
121	Double_t f3(Double_t x1,Double_t y1, Double_t x2,Double_t y2, Double_t z1,Double_t z2);
122	public:
123	//************** Internal tracker class ********************
124	class AliTPCRow {
125	public:
126	AliTPCRow() {fN=0; fClusterTracks=0;}
127	~AliTPCRow();
128	void InsertCluster(const AliTPCclusterMI *c, UInt_t index);
129	operator int() const {return fN;}
130	const AliTPCclusterMI* operator[](Int_t i) const {return fClusters[i];}
131	UInt_t GetIndex(Int_t i) const {return fIndex[i];}
132	Int_t Find(Double_t z) const;
133	void SetX(Double_t x) {fX=x;}
134	Double_t GetX() const {return fX;}
135	AliTPCclusterTracks * GetClusterTracks(Int_t index){ return ( (index<fN) && fClusterTracks!=0)? &(fClusterTracks[index]):0;}
136	void UpdateClusterTrack(Int_t clindex, Int_t trindex,AliTPCseed * seed);
137	void MakeClusterTracks();
138	void ClearClusterTracks();
139	Float_t fDeadZone; // the width of the dead zone
140	private:
141	Int_t fN; //number of clusters
142	const AliTPCclusterMI *fClusters[kMaxClusterPerRow]; //pointers to clusters
143	UInt_t fIndex[kMaxClusterPerRow]; //indeces of clusters
144	Double_t fX; //X-coordinate of this row
145	AliTPCclusterTracks * fClusterTracks; // array of cluster tracks - for overlap calculation
146	private:
147	AliTPCRow(const AliTPCRow& r); //dummy copy constructor
148	AliTPCRow &operator=(const AliTPCRow& r); //dummy assignment operator
149	};
150
151	//************** Internal tracker class ********************
152	class AliTPCSector {
153	public:
154	AliTPCSector() { fN=0; fRow = 0; }
155	~AliTPCSector() { delete[] fRow; }
156	AliTPCRow& operator[](Int_t i) const { return *(fRow+i); }
157	Int_t GetNRows() const { return fN; }
158	void Setup(const AliTPCParam *par, Int_t flag);
159	Double_t GetX(Int_t l) const {return fRow[l].GetX();}
160	Double_t GetMaxY(Int_t l) const {
161	return GetX(l)TMath::Tan(0.5GetAlpha());
162	}
163	Double_t GetAlpha() const {return fAlpha;}
164	Double_t GetAlphaShift() const {return fAlphaShift;}
165	Int_t GetRowNumber(Double_t x) const {
166	//return pad row number for this x
167	Double_t r;
168	if (fN < 64){
169	r=fRow[fN-1].GetX();
170	if (x > r) return fN;
171	r=fRow[0].GetX();
172	if (x < r) return -1;
173	return Int_t((x-r)/fPadPitchLength + 0.5);}
174	else{
175	r=fRow[fN-1].GetX();
176	if (x > r) return fN;
177	r=fRow[0].GetX();
178	if (x < r) return -1;
179	Double_t r1=fRow[64].GetX();
180	if(x<r1){
181	return Int_t((x-r)/f1PadPitchLength + 0.5);}
182	else{
183	return (Int_t((x-r1)/f2PadPitchLength + 0.5)+64);}
184	}
185	}
186	Double_t GetPadPitchWidth() const {return fPadPitchWidth;}
187	Double_t GetPadPitchLength() const {return fPadPitchLength;}
188	Double_t GetPadPitchLength(Float_t x) const {return (x<200) ? fPadPitchLength:f2PadPitchLength ;}
189
190	private:
191	Int_t fN; //number of pad rows
192	AliTPCRow *fRow; //array of pad rows
193	Double_t fAlpha; //opening angle
194	Double_t fAlphaShift; //shift angle;
195	Double_t fPadPitchWidth; //pad pitch width
196	Double_t fPadPitchLength; //pad pitch length
197	Double_t f1PadPitchLength; //pad pitch length
198	Double_t f2PadPitchLength; //pad pitch length
199
200	private:
201	AliTPCSector(const AliTPCSector &s); //dummy copy contructor
202	AliTPCSector& operator=(const AliTPCSector &s);//dummy assignment operator
203	};
204
205	Float_t OverlapFactor(AliTPCseed * s1, AliTPCseed * s2, Int_t &sum1, Int_t &sum2);
206	void SignShared(AliTPCseed * s1, AliTPCseed * s2);
207	void RemoveOverlap(TObjArray * arr, Float_t factor, Int_t removalindex, Bool_t shared=kFALSE);
208	private:
209	Float_t GetSigmaY(AliTPCseed * seed);
210	Float_t GetSigmaZ(AliTPCseed * seed);
211
212	void MakeSeeds(TObjArray * arr, Int_t sec, Int_t i1, Int_t i2);
213	TObjArray * MakeSeedsSectors(Int_t sec1, Int_t sec2); // make seeds from all sectors
214	void MakeSeedsAll();
215	Int_t FollowProlongation(AliTPCseed& t, Int_t rf=0);
216	//Int_t FollowProlongationFast(AliTPCseed& t, Int_t step);
217	Int_t FollowBackProlongation(AliTPCseed& t, Int_t rf=0);
218
219	Int_t FollowToNext(AliTPCseed& t, Int_t nr);
220	Int_t UpdateClusters(AliTPCseed& t, Int_t trindex, Int_t nr);
221	Int_t FollowToNextCluster( Int_t trindex, Int_t nr);
222
223	virtual Int_t PropagateBack (const TFile , TFile ){return 0;}
224	void ParallelTracking(Int_t rfirst, Int_t rlast);
225	void SetSampledEdx(AliTPCseed *t, Float_t q, Int_t i) {;}
226	Int_t UpdateTrack(AliTPCseed t,AliTPCclusterMI c, Double_t chi2, UInt_t i); //update trackinfo
227
228	// Int_t FollowBackProlongation(AliTPCseed &s, const AliTPCtrack &t);
229
230	AliTPCtrackerMI(const AliTPCtrackerMI& r); //dummy copy constructor
231	AliTPCtrackerMI &operator=(const AliTPCtrackerMI& r);//dummy assignment operator
232
233	const Int_t fkNIS; //number of inner sectors
234	AliTPCSector *fInnerSec; //array of inner sectors;
235	const Int_t fkNOS; //number of outer sectors
236	AliTPCSector *fOuterSec; //array of outer sectors;
237
238	Int_t fN; //number of loaded sectors
239	AliTPCSector *fSectors; //pointer to loaded sectors;
240
241	Int_t fEventN; //event number
242	AliTPCClustersArray fClustersArray; //array of TPC clusters
243	Int_t fNtracks; //current number of tracks
244	TObjArray *fSeeds; //array of track seeds
245	// TObjArray * fTrackPointPool; // ! pool with track points
246	const AliTPCParam *fParam; //pointer to the parameters
247	};
248
249	#endif
250
251