/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
* See cxx source for full Copyright notice */
+
////////////////////////////////////////////////////////////////////////////////
-// //
// AliTPCCorrection class //
-// //
-// This class provides a general framework to deal with space point //
-// distortions. An correction class which inherits from here is for example //
-// AliTPCExBBShape or AliTPCExBTwist //
-// //
-// General functions are (for example): //
-// CorrectPoint(x,roc) where x is the vector of inital positions in //
-// cartesian coordinates and roc represents the Read Out chamber number //
-// according to the offline naming convention. The vector x is overwritten //
-// with the corrected coordinates. //
-// //
-// An alternative usage would be CorrectPoint(x,roc,dx), which leaves the //
-// vector x untouched, put returns the distortions via the vector dx //
-// //
-// The class allows "effective Omega Tau" corrections to be shifted to the //
-// single distortion classes. //
-// //
-// Note: This class is normally used via the class AliTPCComposedCorrection //
-// //
-// date: 27/04/2010 //
-// Authors: Magnus Mager, Stefan Rossegger, Jim Thomas //
////////////////////////////////////////////////////////////////////////////////
#include <TNamed.h>
#include "TMatrixD.h"
+#include "TMatrixF.h"
class TH2F;
class TTimeStamp;
class TCollection;
// functions to correct a space point
void CorrectPoint ( Float_t x[],const Short_t roc);
+ void CorrectPointLocal(Float_t x[],const Short_t roc);
void CorrectPoint (const Float_t x[],const Short_t roc,Float_t xp[]);
virtual void GetCorrection(const Float_t x[],const Short_t roc,Float_t dx[]);
// functions to distort a space point
void DistortPoint ( Float_t x[],const Short_t roc);
+ void DistortPointLocal(Float_t x[],const Short_t roc);
void DistortPoint (const Float_t x[],const Short_t roc,Float_t xp[]);
virtual void GetDistortion(const Float_t x[],const Short_t roc,Float_t dx[]);
TH2F* CreateHistoDRinXY (Float_t z=10.,Int_t nx=100,Int_t ny=100);
TH2F* CreateHistoDRPhiinXY(Float_t z=10.,Int_t nx=100,Int_t nphi=100);
+ TH2F* CreateHistoDZinXY (Float_t z=10.,Int_t nx=100,Int_t ny=100);
+
TH2F* CreateHistoDRinZR (Float_t phi=0.,Int_t nZ=100,Int_t nR=100);
TH2F* CreateHistoDRPhiinZR(Float_t phi=0.,Int_t nZ=100,Int_t nR=100);
+ TH2F* CreateHistoDZinZR (Float_t phi=0.,Int_t nZ=100,Int_t nR=100);
+
+
TTree* CreateDistortionTree(Double_t step=5);
- static void MakeDistortionMap(THnSparse * his0, TTreeSRedirector *pcstream, const char* hname, Int_t run);
+ static void MakeDistortionMap(THnSparse * his0, TTreeSRedirector *pcstream, const char* hname, Int_t run, Float_t refX, Int_t type, Int_t integ=1);
+ static void MakeDistortionMapCosmic(THnSparse * his0, TTreeSRedirector *pcstream, const char* hname, Int_t run, Float_t refX, Int_t type);
+ static void MakeDistortionMapSector(THnSparse * his0, TTreeSRedirector *pcstream, const char* hname, Int_t run, Int_t type);
// normally called directly in the correction classes which inherit from this class
virtual void SetOmegaTauT1T2(Float_t omegaTau,Float_t t1,Float_t t2);
AliExternalTrackParam * FitDistortedTrack(AliExternalTrackParam & trackIn, Double_t refX, Int_t dir,TTreeSRedirector *pcstream);
void StoreInOCDB(Int_t startRun, Int_t endRun, const char *comment=0);
- static void MakeTrackDistortionTree(TTree *tinput, Int_t dtype, Int_t ptype, const TObjArray * corrArray, Int_t step=1, Bool_t debug=0);
+ 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);
+ 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);
+ static void MakeLaserDistortionTreeOld(TTree* tree, TObjArray *corrArray, Int_t itype);
static void MakeLaserDistortionTree(TTree* tree, TObjArray *corrArray, Int_t itype);
- void FastSimDistortedVertex(Double_t orgVertex[3], Int_t nTracks, AliESDVertex &aV, AliESDVertex &avOrg, AliESDVertex &cV, AliESDVertex &cvOrg, TTreeSRedirector * const pcstream);
+
+ void FastSimDistortedVertex(Double_t orgVertex[3], Int_t nTracks, AliESDVertex &aV, AliESDVertex &avOrg, AliESDVertex &cV, AliESDVertex &cvOrg, TTreeSRedirector * const pcstream, Double_t etaCuts);
+
+ static void AddVisualCorrection(AliTPCCorrection* corr, Int_t position);
+ static Double_t GetCorrSector(Double_t sector, Double_t r, Double_t kZ, Int_t axisType, Int_t corrType=0);
+ static Double_t GetCorrXYZ(Double_t gx, Double_t gy, Double_t gz, Int_t axisType, Int_t corrType=0);
protected:
TH2F* CreateTH2F(const char *name,const char *title,
Int_t nbinsx,Double_t xlow,Double_t xup,
Int_t nbinsy,Double_t ylow,Double_t yup);
- static const Double_t fgkTPCZ0; // nominal gating grid position
+ static const Double_t fgkTPCZ0; // nominal gating grid position
static const Double_t fgkIFCRadius; // Mean Radius of the Inner Field Cage ( 82.43 min, 83.70 max) (cm)
static const Double_t fgkOFCRadius; // Mean Radius of the Outer Field Cage (252.55 min, 256.45 max) (cm)
static const Double_t fgkZOffSet; // Offset from CE: calculate all distortions closer to CE as if at this point
static const Double_t fgkCathodeV; // Cathode Voltage (volts)
static const Double_t fgkGG; // Gating Grid voltage (volts)
+ static const Double_t fgkdvdE; // [cm/V] drift velocity dependency on the E field (from Magboltz for NeCO2N2 at standard environment)
+ static const Double_t fgkEM; // charge/mass in [C/kg]
+ static const Double_t fgke0; // vacuum permittivity [A·s/(V·m)]
+
- enum {kNR= 92}; // Number of R points in the table for interpolating distortion data
- enum {kNZ= 270}; // Number of Z points in the table for interpolating distortion data
- static const Double_t fgkRList[kNR]; // points in the radial direction (for the lookup table)
- static const Double_t fgkZList[kNZ]; // points in the z direction (for the lookup table)
+ enum {kNR= 72 }; // Number of R points in the table for interpolating distortion data
+ enum {kNPhi= 18*10+1}; // Number of Phi points in the table for interpolating distortion data ( plus one extra for 360 == 0 )
+ enum {kNZ= 166}; // Number of Z points in the table for interpolating distortion data
+
+ Double_t fgkRList[kNR]; // points in the radial direction (for the lookup table)
+ Double_t fgkPhiList[kNPhi]; // points in the phi direction (for the lookup table)
+ Double_t fgkZList[kNZ]; // points in the z direction (for the lookup table)
// Simple Interpolation functions: e.g. with tricubic interpolation (not yet in TH3)
- Int_t fJLow; // variable to help in the interpolation
- Int_t fKLow; // variable to help in the interpolation
+ Int_t fILow, fJLow, fKLow; // variable to help in the interpolation
+ // Double_t versions
void Interpolate2DEdistortion( const Int_t order, const Double_t r, const Double_t z,
const Double_t er[kNZ][kNR], Double_t &erValue );
+ void Interpolate3DEdistortion( const Int_t order, const Double_t r, const Float_t phi, const Double_t z,
+ const Double_t er[kNZ][kNPhi][kNR], const Double_t ephi[kNZ][kNPhi][kNR],
+ const Double_t ez[kNZ][kNPhi][kNR],
+ Double_t &erValue, Double_t &ephiValue, Double_t &ezValue);
+ // TMatrixD versions (for e.g. Poisson relaxation)
+ Double_t Interpolate2DTable( const Int_t order, const Double_t x, const Double_t y,
+ const Int_t nx, const Int_t ny, const Double_t xv[], const Double_t yv[],
+ const TMatrixD &array );
+ Double_t Interpolate3DTable( const Int_t order, const Double_t x, const Double_t y, const Double_t z,
+ const Int_t nx, const Int_t ny, const Int_t nz,
+ const Double_t xv[], const Double_t yv[], const Double_t zv[],
+ TMatrixD **arrayofArrays );
Double_t Interpolate( const Double_t xArray[], const Double_t yArray[],
const Int_t order, const Double_t x );
void Search( const Int_t n, const Double_t xArray[], const Double_t x, Int_t &low );
- virtual Int_t IsPowerOfTwo ( Int_t i ) const ;
-
- // Algorithms to solve the laplace or possion equation
- void PoissonRelaxation2D(TMatrixD &arrayV, const TMatrixD &chargeDensity, TMatrixD &arrayErOverEz, const Int_t rows, const Int_t columns, const Int_t iterations );
+
+ // TMatrixF versions (smaller size, e.g. for final look up table)
+ Float_t Interpolate2DTable( const Int_t order, const Double_t x, const Double_t y,
+ const Int_t nx, const Int_t ny, const Double_t xv[], const Double_t yv[],
+ const TMatrixF &array );
+ Float_t Interpolate3DTable( const Int_t order, const Double_t x, const Double_t y, const Double_t z,
+ const Int_t nx, const Int_t ny, const Int_t nz,
+ const Double_t xv[], const Double_t yv[], const Double_t zv[],
+ TMatrixF **arrayofArrays );
+ Float_t Interpolate( const Double_t xArray[], const Float_t yArray[],
+ const Int_t order, const Double_t x );
+ virtual Int_t IsPowerOfTwo ( Int_t i ) const ;
+
+
+ // Algorithms to solve the laplace or poisson equation
+ void PoissonRelaxation2D(TMatrixD &arrayV, TMatrixD &chargeDensity,
+ TMatrixD &arrayErOverEz, TMatrixD &arrayDeltaEz,
+ const Int_t rows, const Int_t columns, const Int_t iterations,
+ const Bool_t rocDisplacement = kTRUE);
+
+ void PoissonRelaxation3D( TMatrixD **arrayofArrayV, TMatrixD **arrayofChargeDensities,
+ TMatrixD **arrayofEroverEz, TMatrixD **arrayofEPhioverEz, TMatrixD **arrayofEz,
+ const Int_t rows, const Int_t columns, const Int_t phislices,
+ const Float_t deltaphi, const Int_t iterations, const Int_t summetry,
+ const Bool_t rocDisplacement = kTRUE);
+
protected:
Double_t fT1; // tensor term of wt - T1
Double_t fT2; // tensor term of wt - T2
+ static TObjArray *fgVisualCorrection; // array of orrection for visualization
private:
- ClassDef(AliTPCCorrection,2);
+ AliTPCCorrection(const AliTPCCorrection &); // not implemented
+ AliTPCCorrection &operator=(const AliTPCCorrection &); // not implemented
+
+ void InitLookUpfulcrums(); // to initialize the grid of the look up table
+
+ ClassDef(AliTPCCorrection,4);
};
#endif
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