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c9cbd2f2 | 1 | #ifndef ALITPCROCVOLTERROR3D_H |
2 | #define ALITPCROCVOLTERROR3D_H | |
3 | ||
4 | /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
5 | * See cxx source for full Copyright notice */ | |
6 | ||
7 | //////////////////////////////////////////////////////////////////////////// | |
8 | // // | |
9 | // AliTPCROCVoltError3D class // | |
10 | // date: 01/06/2010 // | |
11 | // Authors: Jim Thomas, Stefan Rossegger // | |
12 | //////////////////////////////////////////////////////////////////////////// | |
13 | ||
14 | #include "AliTPCCorrection.h" | |
15 | #include "TH2F.h" | |
16 | ||
17 | ||
18 | class AliTPCROCVoltError3D : public AliTPCCorrection { | |
19 | public: | |
20 | AliTPCROCVoltError3D(); | |
21 | virtual ~AliTPCROCVoltError3D(); | |
22 | ||
23 | // initialization and update functions | |
24 | virtual void Init(); | |
25 | virtual void Update(const TTimeStamp &timeStamp); | |
26 | ||
27 | // common setters and getters for tangled ExB effect | |
28 | virtual void SetOmegaTauT1T2(Float_t omegaTau,Float_t t1,Float_t t2) { | |
29 | fT1=t1; fT2=t2; | |
30 | const Double_t wt0=t2*omegaTau; fC0=1./(1.+wt0*wt0); | |
31 | const Double_t wt1=t1*omegaTau; fC1=wt1/(1.+wt1*wt1); | |
32 | }; | |
33 | void SetC0C1(Float_t c0,Float_t c1) {fC0=c0;fC1=c1;} // CAUTION: USE WITH CARE | |
34 | Float_t GetC0() const {return fC0;} | |
35 | Float_t GetC1() const {return fC1;} | |
2bbac918 | 36 | void SetDZMap(TMatrixD * matrix); |
c9cbd2f2 | 37 | // setters and getters |
38 | void SetROCDataFileName(char *const fname); | |
39 | char* GetROCDataFileName() const {return fROCDataFileName;} | |
40 | ||
41 | // flag to wheter or not include the z aligment in the dz calculation | |
42 | // if FALSE, the dz offset is purely due to the electric field change | |
43 | void SetROCDisplacement(Bool_t flag) { fROCdisplacement = flag; fInitLookUp=kFALSE;} | |
44 | Bool_t GetROCDisplacement() const { return fROCdisplacement; } | |
45 | ||
46 | ||
47 | void InitROCVoltError3D(); // Fill the lookup tables | |
48 | ||
49 | Float_t GetROCVoltOffset(Int_t side, Float_t r0, Float_t phi0); | |
50 | TH2F* CreateHistoOfZSurvey(Int_t side, Int_t nx=250, Int_t ny=250); | |
51 | ||
52 | virtual void Print(const Option_t* option="") const; | |
53 | ||
54 | protected: | |
55 | virtual void GetCorrection(const Float_t x[],const Short_t roc,Float_t dx[]); | |
56 | ||
57 | private: | |
58 | ||
59 | AliTPCROCVoltError3D(const AliTPCROCVoltError3D &); // not implemented | |
60 | AliTPCROCVoltError3D &operator=(const AliTPCROCVoltError3D &); // not implemented | |
61 | ||
62 | Float_t fC0; // coefficient C0 (compare Jim Thomas's notes for definitions) | |
63 | Float_t fC1; // coefficient C1 (compare Jim Thomas's notes for definitions) | |
64 | ||
65 | Bool_t fROCdisplacement; // flag on wheter to consider the ROC displacement | |
66 | // when calculating the z distortions | |
67 | Bool_t fInitLookUp; // flag to check it the Look Up table was created (SUM) | |
68 | ||
69 | TMatrixD *fLookUpErOverEz[kNPhi]; // Array to store electric field integral (int Er/Ez) | |
70 | TMatrixD *fLookUpEphiOverEz[kNPhi]; // Array to store electric field integral (int Er/Ez) | |
71 | TMatrixD *fLookUpDeltaEz[kNPhi]; // Array to store electric field integral (int Er/Ez) | |
72 | ||
73 | char *fROCDataFileName; // filename of the survey data containing the lin Fit values | |
74 | TMatrixD *fdzDataLinFit; // Linear fits of dz survey points (each sector=72) (z0,slopeX,slopeY) | |
75 | ||
76 | // basic numbers for the poisson relaxation //can be set individually in each class | |
77 | enum {kRows =257}; // grid size in r direction used in the poisson relaxation // ( 2**n + 1 ) eg. 65, 129, 257 etc. | |
78 | enum {kColumns=129}; // grid size in z direction used in the poisson relaxation // ( 2**m + 1 ) eg. 65, 129, 257 etc. | |
8847ede1 | 79 | enum {kPhiSlicesPerSector=10}; // phi slices per sector |
c9cbd2f2 | 80 | enum {kPhiSlices = 18*kPhiSlicesPerSector }; // number of points in phi for the basic lookup tables |
81 | enum {kIterations=100}; // Number of iterations within the poisson relaxation | |
82 | ||
8847ede1 | 83 | ClassDef(AliTPCROCVoltError3D,1); |
c9cbd2f2 | 84 | }; |
85 | ||
86 | #endif |