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0116859c 1#ifndef ALI_TPC_CORRECTION_H
2#define ALI_TPC_CORRECTION_H
3
4/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
5 * See cxx source for full Copyright notice */
6
b4caed64 7
0116859c 8////////////////////////////////////////////////////////////////////////////////
0116859c 9// AliTPCCorrection class //
0116859c 10////////////////////////////////////////////////////////////////////////////////
11
12
13#include <TNamed.h>
1b923461 14#include "TMatrixD.h"
2bf29b72 15#include "TMatrixF.h"
0116859c 16class TH2F;
e527a1b9 17class TTimeStamp;
0116859c 18class TCollection;
cf5b0aa0 19class TTreeSRedirector;
20class AliExternalTrackParam;
ffab0c37 21class TTree;
8b63d99c 22class THnSparse;
ca58ed4e 23class AliESDVertex;
1b923461 24
25
0116859c 26class AliTPCCorrection : public TNamed {
27public:
28 enum CompositionType {kParallel,kQueue};
29
30 AliTPCCorrection();
31 AliTPCCorrection(const char *name,const char *title);
32 virtual ~AliTPCCorrection();
33
34
35 // functions to correct a space point
36 void CorrectPoint ( Float_t x[],const Short_t roc);
46e89793 37 void CorrectPointLocal(Float_t x[],const Short_t roc);
0116859c 38 void CorrectPoint (const Float_t x[],const Short_t roc,Float_t xp[]);
fdbbc146 39 virtual void GetCorrection(const Float_t x[],const Short_t roc,Float_t dx[]);
40
41 virtual void GetCorrectionDz(const Float_t x[],const Short_t roc,Float_t dx[], Float_t delta);
42 virtual void GetCorrectionIntegralDz(const Float_t x[],const Short_t roc,Float_t dx[], Float_t delta);
05da1b4e 43
0116859c 44 // functions to distort a space point
45 void DistortPoint ( Float_t x[],const Short_t roc);
46e89793 46 void DistortPointLocal(Float_t x[],const Short_t roc);
0116859c 47 void DistortPoint (const Float_t x[],const Short_t roc,Float_t xp[]);
48 virtual void GetDistortion(const Float_t x[],const Short_t roc,Float_t dx[]);
2d4e971f 49
50 virtual void GetDistortionDz(const Float_t x[],const Short_t roc,Float_t dx[], Float_t delta);
05da1b4e 51 virtual void GetDistortionIntegralDz(const Float_t x[],const Short_t roc,Float_t dx[], Float_t delta);
52
e527a1b9 53 // initialization and update functions
0116859c 54 virtual void Init();
e527a1b9 55 virtual void Update(const TTimeStamp &timeStamp);
0116859c 56
57 // convenience functions
58 virtual void Print(Option_t* option="") const;
59
60 TH2F* CreateHistoDRinXY (Float_t z=10.,Int_t nx=100,Int_t ny=100);
61 TH2F* CreateHistoDRPhiinXY(Float_t z=10.,Int_t nx=100,Int_t nphi=100);
c9cbd2f2 62 TH2F* CreateHistoDZinXY (Float_t z=10.,Int_t nx=100,Int_t ny=100);
63
0116859c 64 TH2F* CreateHistoDRinZR (Float_t phi=0.,Int_t nZ=100,Int_t nR=100);
65 TH2F* CreateHistoDRPhiinZR(Float_t phi=0.,Int_t nZ=100,Int_t nR=100);
c9cbd2f2 66 TH2F* CreateHistoDZinZR (Float_t phi=0.,Int_t nZ=100,Int_t nR=100);
67
68
ffab0c37 69 TTree* CreateDistortionTree(Double_t step=5);
97d17739 70 static void MakeDistortionMap(THnSparse * his0, TTreeSRedirector *pcstream, const char* hname, Int_t run, Float_t refX, Int_t type, Int_t integ=1);
cfe2c39a 71 static void MakeDistortionMapCosmic(THnSparse * his0, TTreeSRedirector *pcstream, const char* hname, Int_t run, Float_t refX, Int_t type);
72 static void MakeDistortionMapSector(THnSparse * his0, TTreeSRedirector *pcstream, const char* hname, Int_t run, Int_t type);
0116859c 73 // normally called directly in the correction classes which inherit from this class
74 virtual void SetOmegaTauT1T2(Float_t omegaTau,Float_t t1,Float_t t2);
be67055b 75 AliExternalTrackParam * FitDistortedTrack(AliExternalTrackParam & trackIn, Double_t refX, Int_t dir,TTreeSRedirector *pcstream);
ffab0c37 76 void StoreInOCDB(Int_t startRun, Int_t endRun, const char *comment=0);
46e89793 77 static void MakeTrackDistortionTree(TTree *tinput, Int_t dtype, Int_t ptype, const TObjArray * corrArray, Int_t step=1, Int_t offset=0, Bool_t debug=0);
78 static void MakeSectorDistortionTree(TTree *tinput, Int_t dtype, Int_t ptype, const TObjArray * corrArray, Int_t step=1, Int_t offset=0, Bool_t debug=0);
79 static void MakeLaserDistortionTreeOld(TTree* tree, TObjArray *corrArray, Int_t itype);
7f4cb119 80 static void MakeLaserDistortionTree(TTree* tree, TObjArray *corrArray, Int_t itype);
f1817479 81
82 void FastSimDistortedVertex(Double_t orgVertex[3], Int_t nTracks, AliESDVertex &aV, AliESDVertex &avOrg, AliESDVertex &cV, AliESDVertex &cvOrg, TTreeSRedirector * const pcstream, Double_t etaCuts);
83
84 static void AddVisualCorrection(AliTPCCorrection* corr, Int_t position);
287fbdfa 85 static Double_t GetCorrSector(Double_t sector, Double_t r, Double_t kZ, Int_t axisType, Int_t corrType=0);
f1817479 86 static Double_t GetCorrXYZ(Double_t gx, Double_t gy, Double_t gz, Int_t axisType, Int_t corrType=0);
fdbbc146 87 //
88 static Double_t GetCorrXYZDz(Double_t gx, Double_t gy, Double_t gz, Int_t axisType, Int_t corrType=0,Double_t delta=5);
89 static Double_t GetCorrXYZIntegrateZ(Double_t gx, Double_t gy, Double_t gz, Int_t axisType, Int_t corrType=0, Double_t delta=5);
2d4e971f 90
91 static Double_t GetDistXYZ(Double_t gx, Double_t gy, Double_t gz, Int_t axisType, Int_t corrType=0);
92 //
93 static Double_t GetDistXYZDz(Double_t gx, Double_t gy, Double_t gz, Int_t axisType, Int_t corrType=0,Double_t delta=5);
94 static Double_t GetDistXYZIntegrateZ(Double_t gx, Double_t gy, Double_t gz, Int_t axisType, Int_t corrType=0, Double_t delta=5);
fdbbc146 95
ca58ed4e 96
0116859c 97protected:
98 TH2F* CreateTH2F(const char *name,const char *title,
99 const char *xlabel,const char *ylabel,const char *zlabel,
100 Int_t nbinsx,Double_t xlow,Double_t xup,
101 Int_t nbinsy,Double_t ylow,Double_t yup);
102
c9cbd2f2 103 static const Double_t fgkTPCZ0; // nominal gating grid position
0116859c 104 static const Double_t fgkIFCRadius; // Mean Radius of the Inner Field Cage ( 82.43 min, 83.70 max) (cm)
105 static const Double_t fgkOFCRadius; // Mean Radius of the Outer Field Cage (252.55 min, 256.45 max) (cm)
106 static const Double_t fgkZOffSet; // Offset from CE: calculate all distortions closer to CE as if at this point
107 static const Double_t fgkCathodeV; // Cathode Voltage (volts)
108 static const Double_t fgkGG; // Gating Grid voltage (volts)
c9cbd2f2 109 static const Double_t fgkdvdE; // [cm/V] drift velocity dependency on the E field (from Magboltz for NeCO2N2 at standard environment)
110 static const Double_t fgkEM; // charge/mass in [C/kg]
111 static const Double_t fgke0; // vacuum permittivity [A·s/(V·m)]
0116859c 112
c9cbd2f2 113
35ae345f 114 enum {kNR= 72 }; // Number of R points in the table for interpolating distortion data
115 enum {kNPhi= 18*10+1}; // Number of Phi points in the table for interpolating distortion data ( plus one extra for 360 == 0 )
116 enum {kNZ= 166}; // Number of Z points in the table for interpolating distortion data
c9cbd2f2 117
35ae345f 118 Double_t fgkRList[kNR]; // points in the radial direction (for the lookup table)
c9cbd2f2 119 Double_t fgkPhiList[kNPhi]; // points in the phi direction (for the lookup table)
35ae345f 120 Double_t fgkZList[kNZ]; // points in the z direction (for the lookup table)
0116859c 121
122 // Simple Interpolation functions: e.g. with tricubic interpolation (not yet in TH3)
c9cbd2f2 123 Int_t fILow, fJLow, fKLow; // variable to help in the interpolation
2bf29b72 124 // Double_t versions
0116859c 125 void Interpolate2DEdistortion( const Int_t order, const Double_t r, const Double_t z,
b1f0a2a5 126 const Double_t er[kNZ][kNR], Double_t &erValue );
c9cbd2f2 127 void Interpolate3DEdistortion( const Int_t order, const Double_t r, const Float_t phi, const Double_t z,
35ae345f 128 const Double_t er[kNZ][kNPhi][kNR], const Double_t ephi[kNZ][kNPhi][kNR],
129 const Double_t ez[kNZ][kNPhi][kNR],
c9cbd2f2 130 Double_t &erValue, Double_t &ephiValue, Double_t &ezValue);
2bf29b72 131 // TMatrixD versions (for e.g. Poisson relaxation)
c9cbd2f2 132 Double_t Interpolate2DTable( const Int_t order, const Double_t x, const Double_t y,
133 const Int_t nx, const Int_t ny, const Double_t xv[], const Double_t yv[],
134 const TMatrixD &array );
135 Double_t Interpolate3DTable( const Int_t order, const Double_t x, const Double_t y, const Double_t z,
136 const Int_t nx, const Int_t ny, const Int_t nz,
137 const Double_t xv[], const Double_t yv[], const Double_t zv[],
138 TMatrixD **arrayofArrays );
0116859c 139 Double_t Interpolate( const Double_t xArray[], const Double_t yArray[],
140 const Int_t order, const Double_t x );
141 void Search( const Int_t n, const Double_t xArray[], const Double_t x, Int_t &low );
2bf29b72 142
143 // TMatrixF versions (smaller size, e.g. for final look up table)
144 Float_t Interpolate2DTable( const Int_t order, const Double_t x, const Double_t y,
145 const Int_t nx, const Int_t ny, const Double_t xv[], const Double_t yv[],
146 const TMatrixF &array );
147 Float_t Interpolate3DTable( const Int_t order, const Double_t x, const Double_t y, const Double_t z,
148 const Int_t nx, const Int_t ny, const Int_t nz,
149 const Double_t xv[], const Double_t yv[], const Double_t zv[],
150 TMatrixF **arrayofArrays );
151 Float_t Interpolate( const Double_t xArray[], const Float_t yArray[],
152 const Int_t order, const Double_t x );
153
710bda39 154 virtual Int_t IsPowerOfTwo ( Int_t i ) const ;
1b923461 155
c9cbd2f2 156
157
158 // Algorithms to solve the laplace or poisson equation
159 void PoissonRelaxation2D(TMatrixD &arrayV, TMatrixD &chargeDensity,
160 TMatrixD &arrayErOverEz, TMatrixD &arrayDeltaEz,
161 const Int_t rows, const Int_t columns, const Int_t iterations,
162 const Bool_t rocDisplacement = kTRUE);
163
164 void PoissonRelaxation3D( TMatrixD **arrayofArrayV, TMatrixD **arrayofChargeDensities,
165 TMatrixD **arrayofEroverEz, TMatrixD **arrayofEPhioverEz, TMatrixD **arrayofEz,
166 const Int_t rows, const Int_t columns, const Int_t phislices,
167 const Float_t deltaphi, const Int_t iterations, const Int_t summetry,
168 const Bool_t rocDisplacement = kTRUE);
169
534fd34a 170protected:
171 Double_t fT1; // tensor term of wt - T1
172 Double_t fT2; // tensor term of wt - T2
f1817479 173 static TObjArray *fgVisualCorrection; // array of orrection for visualization
7f4cb119 174private:
c9cbd2f2 175 AliTPCCorrection(const AliTPCCorrection &); // not implemented
176 AliTPCCorrection &operator=(const AliTPCCorrection &); // not implemented
177
35ae345f 178 void InitLookUpfulcrums(); // to initialize the grid of the look up table
179
180 ClassDef(AliTPCCorrection,4);
0116859c 181};
182
183#endif