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3cde846d | 1 | // XEmacs -*-C++-*- |
a6c02c85 | 2 | // @(#) $Id$ |
4aa41877 | 3 | // Original: AliHLTTrack.h,v 1.18 2005/03/31 04:48:58 cvetan |
3cde846d | 4 | |
a6c02c85 | 5 | #ifndef ALIHLTTPCTRACK_H |
6 | #define ALIHLTTPCTRACK_H | |
7 | ||
297174de | 8 | //* This file is property of and copyright by the ALICE HLT Project * |
9 | //* ALICE Experiment at CERN, All rights reserved. * | |
10 | //* See cxx source for full Copyright notice * | |
3cde846d | 11 | |
12 | /** @file AliHLTTPCTrack.h | |
4fdaad1e | 13 | @author Anders Vestbo, Uli Frankenfeld, maintained by Matthias Richter |
3cde846d | 14 | @date |
15 | @brief HLT TPC track base class (conformal mapping) | |
16 | */ | |
17 | ||
18 | #include "AliTPCtrack.h" | |
19 | ||
a6c02c85 | 20 | class AliHLTTPCVertex; |
21 | class AliHLTTPCSpacePointData; | |
22 | ||
3cde846d | 23 | /** |
24 | * @class AliHLTTPCTrack | |
25 | * This class implements the representation of a TPC track, used by the | |
26 | * HLT conformal mapping track finder. <br> | |
27 | * It was originally separated from the offline TPC track class, but in | |
28 | * order to adjust the output format to the offline ESD, AliHLTTPCTrack | |
29 | * now inherits from AliHLTtrack. | |
297174de | 30 | * |
31 | * @ingroup alihlt_tpc | |
3cde846d | 32 | */ |
33 | class AliHLTTPCTrack : public AliTPCtrack { | |
a6c02c85 | 34 | |
35 | public: | |
36 | ||
37 | AliHLTTPCTrack(); | |
38 | virtual ~AliHLTTPCTrack(); | |
39 | ||
3cde846d | 40 | /** |
41 | * Copy track parameters. | |
42 | * @param track pointer to source track | |
43 | */ | |
44 | virtual void Copy(AliHLTTPCTrack* track); | |
5d2abf3b | 45 | using AliTPCtrack::Copy; //TODO: Check if "virtual void Copy(TObject*)" does what it is supposed to do. |
3cde846d | 46 | |
47 | /** | |
48 | * Compare two tracks by the number of hits | |
49 | * @return 0 if equal number of hits, | |
50 | * 1 if this > track | |
51 | * -1 if this < track | |
52 | */ | |
a6c02c85 | 53 | virtual Int_t Compare(const AliHLTTPCTrack *track) const; |
5d2abf3b | 54 | using AliTPCtrack::Compare; //TODO: Check if "virtual Int_t Compare(TObject*)" does what it is supposed to do. |
3cde846d | 55 | |
56 | /** | |
57 | * Fit the assigned spacepoints to a helix. | |
58 | * The function sets teh track parameters. | |
59 | */ | |
a6c02c85 | 60 | virtual void CalculateHelix(); |
61 | ||
62 | Bool_t CalculateReferencePoint(Double_t angle,Double_t radius=132);//Calculate Reference Point | |
63 | Bool_t CalculateEdgePoint(Double_t angle);//Calculate crossing point with line | |
64 | Bool_t CalculatePoint(Double_t xplane); //Calculate crossing point with X-plane | |
65 | Bool_t IsPoint() {return fIsPoint;} | |
66 | Double_t GetCrossingAngle(Int_t padrow,Int_t slice=-1); | |
67 | Bool_t GetCrossingPoint(Int_t padrow,Float_t *xyz); | |
68 | Double_t GetDistance(Double_t /*x0*/,Double_t /*x1*/){return 0;} | |
69 | void UpdateToFirstPoint(); | |
2a083ac4 | 70 | void GetClosestPoint(AliHLTTPCVertex *vertex,Double_t &closestX,Double_t &closestY,Double_t &closestZ); |
a6c02c85 | 71 | void Rotate(Int_t slice,Bool_t tolocal=kFALSE); |
72 | Bool_t IsLocal() const {return fIsLocal;} | |
5d2abf3b | 73 | virtual void Print(Option_t* option = "") const; |
74 | using AliTPCtrack::Print; | |
a6c02c85 | 75 | |
76 | // getter | |
77 | Double_t GetFirstPointX() const {return fFirstPoint[0];} | |
78 | Double_t GetFirstPointY() const {return fFirstPoint[1];} | |
79 | Double_t GetFirstPointZ() const {return fFirstPoint[2];} | |
80 | Double_t GetLastPointX() const {return fLastPoint[0];} | |
81 | Double_t GetLastPointY() const {return fLastPoint[1];} | |
82 | Double_t GetLastPointZ() const {return fLastPoint[2];} | |
83 | ||
84 | Double_t GetPointPsi() const {return fPointPsi;} | |
85 | Double_t GetPointX() const {return fPoint[0];} | |
86 | Double_t GetPointY() const {return fPoint[1];} | |
87 | Double_t GetPointZ() const {return fPoint[2];} | |
88 | ||
89 | Double_t GetPt() const {return fPt;} | |
90 | Double_t GetTgl() const {return fTanl;} | |
91 | Double_t GetPsi() const {return fPsi;} | |
92 | Double_t GetPhi0() const {return fPhi0;} | |
93 | Double_t GetR0() const {return fR0;} | |
94 | Double_t GetZ0() const {return fFirstPoint[2];} | |
95 | Float_t GetPID() const {return fPID;} | |
96 | ||
97 | Double_t GetPterr() const {return fPterr;} | |
98 | Double_t GetPsierr() const {return fPsierr;} | |
99 | Double_t GetTglerr() const {return fTanlerr;} | |
31f11c63 | 100 | Double_t GetZ0err() const {return fZ0err;} |
101 | Double_t GetY0err() const {return fY0err;} | |
102 | ||
a6c02c85 | 103 | Double_t GetKappa() const {return fKappa;} |
104 | Double_t GetRadius() const {return fRadius;} | |
105 | Double_t GetCenterX() const {return fCenterX;} | |
106 | Double_t GetCenterY() const {return fCenterY;} | |
107 | ||
108 | Int_t GetNHits() const {return fNHits;} | |
109 | Int_t GetNumberOfPoints() const {return fNHits;} | |
110 | Bool_t ComesFromMainVertex() const {return fFromMainVertex;} | |
111 | ||
112 | Double_t GetPx() const {return fPt*cos(fPsi);} | |
113 | Double_t GetPy() const {return fPt*sin(fPsi);} | |
114 | Double_t GetPz() const {return fPt*fTanl;} | |
115 | ||
116 | Double_t GetP() const; | |
117 | Double_t GetPseudoRapidity() const; | |
118 | Double_t GetRapidity() const; | |
119 | ||
120 | Int_t GetCharge() const {return fQ;} | |
121 | Int_t GetMCid() const {return fMCid;} | |
122 | Double_t GetLength() const {return fLength;} | |
1ee9dca4 | 123 | Double_t GetLengthXY() const ; |
124 | Double_t GetLengthTot() const; | |
125 | ||
a6c02c85 | 126 | Int_t GetFirstRow() const {return fRowRange[0];} |
127 | Int_t GetLastRow() const {return fRowRange[1];} | |
128 | Int_t GetSector() const {return fSector;} | |
129 | ||
130 | UInt_t *GetHitNumbers() {return fHitNumbers;} | |
6edb0fb5 | 131 | Int_t GetId(){ return fId; } |
a6c02c85 | 132 | |
133 | // setter | |
134 | void SetPID(Float_t pid) {fPID=pid;} | |
135 | void SetMCid(Int_t f) {fMCid = f;} | |
136 | void SetFirstPoint(Double_t f,Double_t g,Double_t h) {fFirstPoint[0]=f; fFirstPoint[1]=g; fFirstPoint[2]=h;} | |
137 | void SetLastPoint(Double_t f,Double_t g,Double_t h) {fLastPoint[0]=f; fLastPoint[1]=g; fLastPoint[2]=h;} | |
25097926 | 138 | void SetHits(Int_t nhits,UInt_t *hits); |
a6c02c85 | 139 | void SetPhi0(Double_t f) {fPhi0 = f;} |
140 | void SetPsi(Double_t f) {fPsi = f;} | |
141 | void SetR0(Double_t f) {fR0 = f;} | |
142 | void SetTgl(Double_t f) {fTanl =f;} | |
143 | void SetZ0(Double_t f) {fFirstPoint[2] = f;} | |
144 | void SetPt(Double_t f) {fPt = f;} | |
145 | void SetLength(Double_t f) {fLength = f;} | |
146 | void SetPterr(Double_t f) {fPterr = f;} | |
147 | void SetPsierr(Double_t f) {fPsierr = f;} | |
148 | void SetZ0err(Double_t f) {fZ0err = f;} | |
31f11c63 | 149 | void SetY0err(Double_t f) {fY0err = f;} |
a6c02c85 | 150 | void SetTglerr(Double_t f) {fTanlerr = f;} |
151 | void SetKappa(Double_t f) {fKappa = f;} | |
152 | void SetNHits(Int_t f) {fNHits = f;} | |
153 | void SetRowRange(Int_t f,Int_t g) {fRowRange[0]=f; fRowRange[1]=g;} | |
154 | void SetSector(Int_t f) {fSector = f;} | |
155 | void SetRadius(Double_t f) {fRadius = f;} | |
156 | void SetCenterX(Double_t f) {fCenterX = f;} | |
157 | void SetCenterY(Double_t f) {fCenterY = f;} | |
158 | void SetCharge(Int_t f) {fQ = f;} | |
6edb0fb5 | 159 | void SetId( Int_t f ) { fId = f; } |
160 | ||
a6c02c85 | 161 | void ComesFromMainVertex(Bool_t f) {fFromMainVertex = f;} |
162 | ||
3cde846d | 163 | /** |
164 | * Convert all track parameters to the format of AliKalmanTrack | |
165 | * The AliKalmanTrack class implements the track parametrization for offline ITS, TPC | |
166 | * and TRD tracking. The function calculates and sets the parameters of the | |
167 | * parent class (Note: AliHLTTPCTrack inherits from AliTPCtrack and thus | |
168 | * AliKalmanTrack). | |
169 | */ | |
170 | int Convert2AliKalmanTrack(); | |
171 | ||
7b96fe31 | 172 | /** |
173 | * Check the structure members to be within reasonable limits. | |
174 | */ | |
175 | int CheckConsistency(); | |
176 | ||
177 | /** | |
178 | * Check consistency of a double member | |
179 | */ | |
180 | int CheckDoubleMember(double* pMember, double def, const char* name) const; | |
181 | ||
a6c02c85 | 182 | private: |
183 | ||
184 | Int_t fNHits; //Number of hits | |
185 | Int_t fMCid; //Assigned id from MC data. | |
186 | ||
187 | Double_t fKappa; // Signed curvature (projected to a circle) | |
188 | Double_t fRadius; // Radius of the helix (projected to a circle) | |
189 | Double_t fCenterX; // x coordinate of the center of the helix (projected to a circle) | |
190 | Double_t fCenterY; // y coordinate of the center of the helix (projected to a circle) | |
191 | Bool_t fFromMainVertex; // true if tracks origin is the main vertex, otherwise false | |
192 | ||
193 | Int_t fRowRange[2]; //Subsector where this track was build | |
194 | Int_t fSector; //Sector # where this track was build | |
195 | ||
196 | //data from momentum fit | |
197 | Int_t fQ; //charge measured fit | |
198 | ||
199 | //track parameters: | |
200 | Double_t fTanl; //tan of dipangle | |
201 | Double_t fPsi; //azimuthal angle of the momentum | |
202 | Double_t fPt; //transverse momentum | |
203 | Double_t fLength; //length of track (s) | |
204 | ||
205 | Double_t fPterr; //error in pt | |
206 | Double_t fPsierr; //error in psi | |
207 | Double_t fZ0err; //error in first point | |
31f11c63 | 208 | Double_t fY0err; //error in first point |
a6c02c85 | 209 | Double_t fTanlerr; //error in tanl |
210 | ||
211 | Double_t fPhi0; //azimuthal angle of the first point | |
212 | Double_t fR0; //radius of the first point | |
213 | Double_t fZ0; //z coordinate of the first point (fFirstPoint[2]) | |
214 | ||
215 | Double_t fFirstPoint[3]; //first point | |
216 | Double_t fLastPoint[3]; //last point | |
217 | Double_t fPoint[3]; //point | |
218 | Double_t fPointPsi; //azimuthal angle of the momentum at Point | |
219 | ||
220 | Bool_t fIsPoint; //Helix crosses the X-plane | |
221 | Bool_t fIsLocal; //Track given in local coordinates. | |
222 | ||
223 | Float_t fPID; //pid | |
25097926 | 224 | static const int fgkHitArraySize=159; // size of hit array |
225 | UInt_t fHitNumbers[fgkHitArraySize]; //Array of hit numbers for this track | |
6edb0fb5 | 226 | Int_t fId; // unique ID of the track |
a6c02c85 | 227 | |
228 | Bool_t IsPoint(Bool_t ispoint) {fIsPoint = ispoint;return fIsPoint;} | |
6edb0fb5 | 229 | |
230 | ClassDef(AliHLTTPCTrack,3) //Base track class | |
a6c02c85 | 231 | }; |
232 | #endif |