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
21 class AliMUONGeometryTransformer;
23 class AliMUONTrackParam;
24 class AliMUONVCluster;
26 class AliMUONAlignment:public TObject
31 virtual ~AliMUONAlignment();
33 void ProcessTrack(AliMUONTrack *track);
34 /// Set geometry transformer
35 void SetGeometryTransformer(AliMUONGeometryTransformer * transformer) {
36 fTransform = transformer;
39 /// Set flag for Magnetic field On/Off
40 void SetBFieldOn(Bool_t bBFieldOn) {
41 fBFieldOn = bBFieldOn;
43 /// Define chambers to align
44 void SetChOnOff(Bool_t *bChOnOff) {
45 for(int iCh=0; iCh<10; iCh++)
46 fChOnOff[iCh] = bChOnOff[iCh];
48 /// Possibility to align only one side of the detector
49 void SetSpecLROnOff(Bool_t *bSpecLROnOff) {
50 fSpecLROnOff[0] = bSpecLROnOff[0];
51 fSpecLROnOff[1] = bSpecLROnOff[1];
53 void FixStation(Int_t iSt);
54 void FixChamber(Int_t iCh);
55 void FixDetElem(Int_t iDetElemId, TString sVarXYT = "XYTZ");
56 void FixHalfSpectrometer(const Bool_t *bChOnOff, const Bool_t *bSpecLROnOff);
57 void AllowVariations(const Bool_t *bChOnOff);
58 void SetNonLinear(const Bool_t *bChOnOff, const Bool_t *bVarXYT);
59 void AddConstraints(const Bool_t *bChOnOff, const Bool_t *bVarXYT);
60 void AddConstraints(const Bool_t *bChOnOff, const Bool_t *bVarXYT, const Bool_t *bDetTLBR, const Bool_t *bSpecLROnOff);
61 void ResetConstraints();
63 void FixParameter(Int_t param, Double_t value);
64 void SetNonLinear(Int_t param);
65 void AddConstraint(Double_t *factor, Double_t value );
66 void InitGlobalParameters(Double_t *par);
67 void SetSigmaXY(Double_t sigmaX, Double_t sigmaY);
68 /// Set array of local derivatives
69 void SetLocalDerivative(Int_t index, Double_t value) {
70 fLocalDerivatives[index] = value;
72 /// Set array of global derivatives
73 void SetGlobalDerivative(Int_t index, Double_t value) {
74 fGlobalDerivatives[index] = value;
76 void LocalFit(Int_t iTrack, Double_t *lTrackParam, Int_t lSingleFit);
77 void GlobalFit(Double_t *parameters,Double_t *errors,Double_t *pulls);
78 void PrintGlobalParameters();
79 Double_t GetParError(Int_t iPar);
81 AliMUONGeometryTransformer*
82 ReAlign(const AliMUONGeometryTransformer * transformer, const double *misAlignments, Bool_t verbose);
84 void SetAlignmentResolution(const TClonesArray* misAlignArray, Int_t chId, Double_t chResX, Double_t chResY, Double_t deResX, Double_t deResY);
88 AliMUONAlignment(const AliMUONAlignment& right);
90 AliMUONAlignment& operator = (const AliMUONAlignment& right);
92 void Init(Int_t nGlobal, Int_t nLocal, Int_t nStdDev);
93 void ConstrainT(Int_t lDetElem, Int_t lCh, Double_t *lConstraintT, Int_t iVar, Double_t lWeight=1.0) const;
94 void ConstrainL(Int_t lDetElem, Int_t lCh, Double_t *lConstraintL, Int_t iVar, Double_t lWeight=1.0) const;
95 void ConstrainB(Int_t lDetElem, Int_t lCh, Double_t *lConstraintB, Int_t iVar, Double_t lWeight=1.0) const;
96 void ConstrainR(Int_t lDetElem, Int_t lCh, Double_t *lConstraintR, Int_t iVar, Double_t lWeight=1.0) const;
97 void FillDetElemData();
98 void FillRecPointData();
99 void FillTrackParamData();
100 void ResetLocalEquation();
101 void LocalEquationX();
102 void LocalEquationY();
104 TGeoCombiTrans ReAlign(const TGeoCombiTrans& transform, const double *detElemMisAlignment) const;
106 Bool_t fBFieldOn; ///< Flag for Magnetic filed On/Off
107 Bool_t fChOnOff[10]; ///< Flags for chamber On/Off
108 Bool_t fSpecLROnOff[2]; ///< Flags for left right On/Off
109 Bool_t fDoF[4]; ///< Flags degrees of freedom to align (x,y,phi)
110 Double_t fAllowVar[4]; ///< "Encouraged" variation for degrees of freedom
111 Double_t fStartFac; ///< Initial value for chi2 cut
112 ///< if > 1 Iterations in AliMillepede are turned on
113 Double_t fResCutInitial; ///< Cut on residual for first iteration
114 Double_t fResCut; ///< Cut on residual for other iterations
116 AliMillepede *fMillepede; ///< Detector independent alignment class
118 TObjArray *fTrackParamAtCluster; ///< Array of track parameters
119 AliMUONTrack *fTrack; ///< AliMUONTrack
120 AliMUONVCluster *fCluster; ///< AliMUONVCluster
121 AliMUONTrackParam *fTrackParam; ///< Track parameters
123 Int_t fNGlobal; ///< Number of global parameters
124 Int_t fNLocal; ///< Number of local parameters
125 Int_t fNStdDev; ///< Number of standard deviations for chi2 cut
126 Double_t fClustPos[3]; ///< Cluster position
127 Double_t fClustPosLoc[3]; ///< Cluster position in local coordinates
128 Double_t fTrackSlope0[2]; ///< Track slope at reference point
129 Double_t fTrackSlope[2]; ///< Track slope at current point
130 Double_t fTrackPos0[3]; ///< Track intersection at reference point
131 Double_t fTrackPos[3]; ///< Track intersection at current point
132 Double_t fTrackPosLoc[3]; ///< Track intersection at current point in local coordinates
133 Double_t fMeas[2]; ///< Current measurement (depend on B field On/Off)
134 Double_t fSigma[2]; ///< Estimated resolution on measurement
136 Double_t fGlobalDerivatives[624]; ///< Array of global derivatives
137 Double_t fLocalDerivatives[4]; ///< Array of local derivatives
139 Double_t fConstraintX[624]; ///< Array for constraint equation all X
140 Double_t fConstraintY[624]; ///< Array for constraint equation all Y
141 Double_t fConstraintP[624]; ///< Array for constraint equation all P
142 Double_t fConstraintXT[624]; ///< Array for constraint equation X Top half
143 Double_t fConstraintYT[624]; ///< Array for constraint equation Y Top half
144 Double_t fConstraintPT[624]; ///< Array for constraint equation P Top half
145 Double_t fConstraintXZT[624]; ///< Array for constraint equation X vs Z Top half
146 Double_t fConstraintYZT[624]; ///< Array for constraint equation Y vs Z Top half
147 Double_t fConstraintPZT[624]; ///< Array for constraint equation P vs Z Top half
148 Double_t fConstraintXYT[624]; ///< Array for constraint equation X vs Y Top half
149 Double_t fConstraintYYT[624]; ///< Array for constraint equation Y vs Y Top half
150 Double_t fConstraintPYT[624]; ///< Array for constraint equation P vs Y Top half
151 Double_t fConstraintXB[624]; ///< Array for constraint equation X Bottom half
152 Double_t fConstraintYB[624]; ///< Array for constraint equation Y Bottom half
153 Double_t fConstraintPB[624]; ///< Array for constraint equation P Bottom half
154 Double_t fConstraintXZB[624]; ///< Array for constraint equation X vs Z Bottom half
155 Double_t fConstraintYZB[624]; ///< Array for constraint equation Y vs Z Bottom half
156 Double_t fConstraintPZB[624]; ///< Array for constraint equation P vs Z Bottom half
157 Double_t fConstraintXYB[624]; ///< Array for constraint equation X vs Y Bottom half
158 Double_t fConstraintYYB[624]; ///< Array for constraint equation Y vs Y Bottom half
159 Double_t fConstraintPYB[624]; ///< Array for constraint equation P vs Y Bottom half
160 Double_t fConstraintXR[624]; ///< Array for constraint equation X Right half
161 Double_t fConstraintYR[624]; ///< Array for constraint equation Y Right half
162 Double_t fConstraintPR[624]; ///< Array for constraint equation P Right half
163 Double_t fConstraintXZR[624]; ///< Array for constraint equation X vs Z Right half
164 Double_t fConstraintYZR[624]; ///< Array for constraint equation Y vs Z Right half
165 Double_t fConstraintPZR[624]; ///< Array for constraint equation P vs Z Right half
166 Double_t fConstraintXYR[624]; ///< Array for constraint equation X vs Y Right half
167 Double_t fConstraintYYR[624]; ///< Array for constraint equation Y vs Y Right half
168 Double_t fConstraintPYR[624]; ///< Array for constraint equation P vs Y Right half
169 Double_t fConstraintXL[624]; ///< Array for constraint equation X Left half
170 Double_t fConstraintYL[624]; ///< Array for constraint equation Y Left half
171 Double_t fConstraintPL[624]; ///< Array for constraint equation P Left half
172 Double_t fConstraintXZL[624]; ///< Array for constraint equation X vs Z Left half
173 Double_t fConstraintYZL[624]; ///< Array for constraint equation Y vs Z Left half
174 Double_t fConstraintPZL[624]; ///< Array for constraint equation P vs Z Left half
175 Double_t fConstraintXYL[624]; ///< Array for constraint equation X vs Y Left half
176 Double_t fConstraintYYL[624]; ///< Array for constraint equation Y vs Y Left half
177 Double_t fConstraintPYL[624]; ///< Array for constraint equation P vs Y Left half
178 Double_t fConstraintX3[624]; ///< Array for constraint equation St3 X
179 Double_t fConstraintY3[624]; ///< Array for constraint equation St3 Y
180 Double_t fConstraintX4[624]; ///< Array for constraint equation St4 X
181 Double_t fConstraintY4[624]; ///< Array for constraint equation St4 Y
182 Double_t fConstraintP4[624]; ///< Array for constraint equation St4 P
183 Double_t fConstraintX5[624]; ///< Array for constraint equation St5 X
184 Double_t fConstraintY5[624]; ///< Array for constraint equation St5 Y
186 Int_t fDetElemId; ///< Detection element id
187 Int_t fDetElemNumber; ///< Detection element number
188 Double_t fPhi; ///< Azimuthal tilt of detection element
189 Double_t fCosPhi; ///< Cosine of fPhi
190 Double_t fSinPhi; ///< Sine of fPhi
191 Double_t fDetElemPos[3]; ///< Position of detection element
193 AliMUONGeometryTransformer *fTransform; ///< Geometry transformation
195 static Int_t fgNSt; ///< Number tracking stations
196 static Int_t fgNCh; ///< Number tracking chambers
197 static Int_t fgNTrkMod; ///< Number of tracking modules (4 ch + 6*2 half-ch)
198 static Int_t fgNParCh; ///< Number of degrees of freedom per chamber
199 static Int_t fgNDetElem; ///< Total number of detection elements
200 static Int_t fgNDetElemCh[10]; ///< Number of detection elements per chamber
201 static Int_t fgSNDetElemCh[10];///< Sum of detection elements up to this chamber (inc)
203 ClassDef(AliMUONAlignment, 2) //Class for alignment of muon spectrometer