1 #ifndef ALIMUONALIGNMENT_H
2 #define ALIMUONALIGNMENT_H
3 /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * See cxx source for full Copyright notice */
9 /// \class AliMUONAlignment
10 /// \brief Class for alignment of muon spectrometer
12 // Authors: Bruce Becker, Javier Castillo
19 class AliMUONGeometryTransformer;
21 class AliMUONTrackParam;
22 class AliMUONHitForRec;
24 class AliMUONAlignment:public TObject
29 virtual ~AliMUONAlignment();
31 void ProcessTrack(AliMUONTrack *track);
32 /// Set geometry transformer
33 void SetGeometryTransformer(AliMUONGeometryTransformer * transformer) {
34 fTransform = transformer;
37 void FixStation(Int_t iSt);
38 void FixHalfSpectrometer(Bool_t *bStOnOff, Bool_t *bSpecLROnOff);
39 void AllowVariations(Bool_t *bStOnOff);
40 void SetNonLinear(Bool_t *bStOnOff, Bool_t *bVarXYT);
41 void AddConstraints(Bool_t *bStOnOff, Bool_t *bVarXYT);
42 void AddConstraints(Bool_t *bStOnOff, Bool_t *bVarXYT, Bool_t *bDetTLBR, Bool_t *bSpecLROnOff);
43 void ResetConstraints();
45 void FixParameter(Int_t param, Double_t value);
46 void SetNonLinear(Int_t param);
47 void AddConstraint(Double_t *factor, Double_t value );
48 void InitGlobalParameters(Double_t *par);
49 /// Set array of local derivatives
50 void SetLocalDerivative(Int_t index, Double_t value) {
51 fLocalDerivatives[index] = value;
53 /// Set array of global derivatives
54 void SetGlobalDerivative(Int_t index, Double_t value) {
55 fGlobalDerivatives[index] = value;
57 void LocalFit(Int_t iTrack, Double_t *lTrackParam, Int_t lSingleFit);
58 void GlobalFit(Double_t *parameters,Double_t *errors,Double_t *pulls);
59 void PrintGlobalParameters();
60 Double_t GetParError(Int_t iPar);
62 AliMUONGeometryTransformer*
63 ReAlign(const AliMUONGeometryTransformer * transformer, double *misAlignments, Bool_t verbose);
67 AliMUONAlignment(const AliMUONAlignment& right);
69 AliMUONAlignment& operator = (const AliMUONAlignment& right);
71 void Init(Int_t nGlobal, Int_t nLocal, Int_t nStdDev);
72 void ConstrainT(Int_t lDetElem, Int_t lCh, Double_t *lConstraintT, Int_t iVar, Double_t lWeight=1.0);
73 void ConstrainL(Int_t lDetElem, Int_t lCh, Double_t *lConstraintL, Int_t iVar, Double_t lWeight=1.0);
74 void ConstrainB(Int_t lDetElem, Int_t lCh, Double_t *lConstraintB, Int_t iVar, Double_t lWeight=1.0);
75 void ConstrainR(Int_t lDetElem, Int_t lCh, Double_t *lConstraintR, Int_t iVar, Double_t lWeight=1.0);
76 void FillDetElemData();
77 void FillRecPointData();
78 void FillTrackParamData();
79 void ResetLocalEquation();
80 void LocalEquationX();
81 void LocalEquationY();
83 TGeoCombiTrans ReAlign(const TGeoCombiTrans& transform, double *detElemMisAlignment) const;
85 Bool_t fBFieldOn; ///< Flag for Magnetic filed On/Off
87 Bool_t fDoF[3]; ///< Flags degrees of freedom to align (x,y,phi)
88 Double_t fAllowVar[3]; ///< "Encouraged" variation for degrees of freedom
89 Double_t fStartFac; ///< Initial value for chi2 cut
90 ///< if > 1 Iterations in AliMillepede are turned on
91 Double_t fResCutInitial; ///< Cut on residual for first iteration
92 Double_t fResCut; ///< Cut on residual for other iterations
94 AliMillepede *fMillepede; ///< Detector independent alignment class
96 TClonesArray *fTrackParamAtHit; ///< Array of track parameters
97 TClonesArray *fHitForRecAtHit; ///< Array of track hits
98 AliMUONTrack *fTrack; ///< AliMUONTrack
99 AliMUONHitForRec *fRecHit; ///< AliMUONHitForRec
100 AliMUONTrackParam *fTrackParam; ///< Track parameters
102 Int_t fNGlobal; ///< Number of global parameters
103 Int_t fNLocal; ///< Number of local parameters
104 Int_t fNStdDev; ///< Number of standard deviations for chi2 cut
105 Double_t fClustPos[3]; ///< Cluster position
106 Double_t fClustPosLoc[3]; ///< Cluster position in local coordinates
107 Double_t fTrackSlope0[2]; ///< Track slope at reference point
108 Double_t fTrackSlope[2]; ///< Track slope at current point
109 Double_t fTrackPos0[3]; ///< Track intersection at reference point
110 Double_t fTrackPos[3]; ///< Track intersection at current point
111 Double_t fTrackPosLoc[3]; ///< Track intersection at current point in local coordinates
112 Double_t fMeas[2]; ///< Current measurement (depend on B field On/Off)
113 Double_t fSigma[2]; ///< Estimated resolution on measurement
115 Double_t fGlobalDerivatives[468]; ///< Array of global derivatives
116 Double_t fLocalDerivatives[4]; ///< Array of local derivatives
118 Double_t fConstraintX[468]; ///< Array for constraint equation all X
119 Double_t fConstraintY[468]; ///< Array for constraint equation all Y
120 Double_t fConstraintP[468]; ///< Array for constraint equation all P
121 Double_t fConstraintXT[468]; ///< Array for constraint equation X Top half
122 Double_t fConstraintYT[468]; ///< Array for constraint equation Y Top half
123 Double_t fConstraintPT[468]; ///< Array for constraint equation P Top half
124 Double_t fConstraintXZT[468]; ///< Array for constraint equation X vs Z Top half
125 Double_t fConstraintYZT[468]; ///< Array for constraint equation Y vs Z Top half
126 Double_t fConstraintPZT[468]; ///< Array for constraint equation P vs Z Top half
127 Double_t fConstraintXYT[468]; ///< Array for constraint equation X vs Y Top half
128 Double_t fConstraintYYT[468]; ///< Array for constraint equation Y vs Y Top half
129 Double_t fConstraintPYT[468]; ///< Array for constraint equation P vs Y Top half
130 Double_t fConstraintXB[468]; ///< Array for constraint equation X Bottom half
131 Double_t fConstraintYB[468]; ///< Array for constraint equation Y Bottom half
132 Double_t fConstraintPB[468]; ///< Array for constraint equation P Bottom half
133 Double_t fConstraintXZB[468]; ///< Array for constraint equation X vs Z Bottom half
134 Double_t fConstraintYZB[468]; ///< Array for constraint equation Y vs Z Bottom half
135 Double_t fConstraintPZB[468]; ///< Array for constraint equation P vs Z Bottom half
136 Double_t fConstraintXYB[468]; ///< Array for constraint equation X vs Y Bottom half
137 Double_t fConstraintYYB[468]; ///< Array for constraint equation Y vs Y Bottom half
138 Double_t fConstraintPYB[468]; ///< Array for constraint equation P vs Y Bottom half
139 Double_t fConstraintXR[468]; ///< Array for constraint equation X Right half
140 Double_t fConstraintYR[468]; ///< Array for constraint equation Y Right half
141 Double_t fConstraintPR[468]; ///< Array for constraint equation P Right half
142 Double_t fConstraintXZR[468]; ///< Array for constraint equation X vs Z Right half
143 Double_t fConstraintYZR[468]; ///< Array for constraint equation Y vs Z Right half
144 Double_t fConstraintPZR[468]; ///< Array for constraint equation P vs Z Right half
145 Double_t fConstraintXYR[468]; ///< Array for constraint equation X vs Y Right half
146 Double_t fConstraintYYR[468]; ///< Array for constraint equation Y vs Y Right half
147 Double_t fConstraintPYR[468]; ///< Array for constraint equation P vs Y Right half
148 Double_t fConstraintXL[468]; ///< Array for constraint equation X Left half
149 Double_t fConstraintYL[468]; ///< Array for constraint equation Y Left half
150 Double_t fConstraintPL[468]; ///< Array for constraint equation P Left half
151 Double_t fConstraintXZL[468]; ///< Array for constraint equation X vs Z Left half
152 Double_t fConstraintYZL[468]; ///< Array for constraint equation Y vs Z Left half
153 Double_t fConstraintPZL[468]; ///< Array for constraint equation P vs Z Left half
154 Double_t fConstraintXYL[468]; ///< Array for constraint equation X vs Y Left half
155 Double_t fConstraintYYL[468]; ///< Array for constraint equation Y vs Y Left half
156 Double_t fConstraintPYL[468]; ///< Array for constraint equation P vs Y Left half
157 Double_t fConstraintX3[468]; ///< Array for constraint equation St3 X
158 Double_t fConstraintY3[468]; ///< Array for constraint equation St3 Y
159 Double_t fConstraintX4[468]; ///< Array for constraint equation St4 X
160 Double_t fConstraintY4[468]; ///< Array for constraint equation St4 Y
161 Double_t fConstraintP4[468]; ///< Array for constraint equation St4 P
162 Double_t fConstraintX5[468]; ///< Array for constraint equation St5 X
163 Double_t fConstraintY5[468]; ///< Array for constraint equation St5 Y
165 Int_t fDetElemId; ///< Detection element id
166 Int_t fDetElemNumber; ///< Detection element number
167 Double_t fPhi; ///< Azimuthal tilt of detection element
168 Double_t fCosPhi; ///< Cosine of fPhi
169 Double_t fSinPhi; ///< Sine of fPhi
170 Double_t fDetElemPos[3]; ///< Position of detection element
172 AliMUONGeometryTransformer *fTransform; ///< Geometry transformation
174 static Int_t fgNSt; ///< Number tracking stations
175 static Int_t fgNCh; ///< Number tracking chambers
176 static Int_t fgNTrkMod; ///< Number of tracking modules (4 ch + 6*2 half-ch)
177 static Int_t fgNParCh; ///< Number of degrees of freedom per chamber
178 static Int_t fgNDetElem; ///< Total number of detection elements
179 static Int_t fgNDetElemCh[10]; ///< Number of detection elements per chamber
180 static Int_t fgSNDetElemCh[10];///< Sum of detection elements up to this chamber (inc)
182 ClassDef(AliMUONAlignment, 0)};