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add cluster occupancy to the ESD friend
[u/mrichter/AliRoot.git] / STEER / STEERBase / AliMagWrapCheb.h
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da7cd221 1
2// Author: ruben.shahoyan@cern.ch 20/03/2007
3
4///////////////////////////////////////////////////////////////////////////////////
5// //
6// Wrapper for the set of mag.field parameterizations by Chebyshev polinomials //
7// To obtain the field in cartesian coordinates/components use //
db83d72f 8// Field(double* xyz, double* bxyz); //
da7cd221 9// For cylindrical coordinates/components: //
db83d72f 10// FieldCyl(double* rphiz, double* brphiz) //
da7cd221 11// //
12// The solenoid part is parameterized in the volume R<500, -550<Z<550 cm //
13// //
14// The region R<423 cm, -343.3<Z<481.3 for 30kA and -343.3<Z<481.3 for 12kA //
15// is parameterized using measured data while outside the Tosca calculation //
16// is used (matched to data on the boundary of the measurements) //
17// //
18// Two options are possible: //
19// 1) _BRING_TO_BOUNDARY_ is defined in the AliCheb3D: //
20// If the querried point is outside of the validity region then the field //
21// at the closest point on the fitted surface is returned. //
22// 2) _BRING_TO_BOUNDARY_ is not defined in the AliCheb3D: //
23// If the querried point is outside of the validity region the return //
24// value for the field components are set to 0. //
25// //
26// To obtain the field integral in the TPC region from given point to nearest //
27// cathod plane (+- 250 cm) use: //
db83d72f 28// GetTPCInt(double* xyz, double* bxyz); for Cartesian frame //
da7cd221 29// or //
db83d72f 30// GetTPCIntCyl(Double_t *rphiz, Double_t *b); for Cylindrical frame //
da7cd221 31// //
32// //
33// The units are kiloGauss and cm. //
34// //
35///////////////////////////////////////////////////////////////////////////////////
36
a1dde210 37#ifndef ALIMAGWRAPCHEB_H
38#define ALIMAGWRAPCHEB_H
a1dde210 39
da7cd221 40#include <TMath.h>
41#include <TNamed.h>
339fbe23 42#include <TObjArray.h>
8947c207 43#include "AliCheb3D.h"
a1dde210 44
da7cd221 45class TSystem;
46class TArrayF;
47class TArrayI;
a1dde210 48
da7cd221 49class AliMagWrapCheb: public TNamed
a1dde210 50{
da7cd221 51 public:
a1dde210 52 AliMagWrapCheb();
da7cd221 53 AliMagWrapCheb(const AliMagWrapCheb& src);
54 ~AliMagWrapCheb() {Clear();}
55 //
56 void CopyFrom(const AliMagWrapCheb& src);
57 AliMagWrapCheb& operator=(const AliMagWrapCheb& rhs);
58 virtual void Clear(const Option_t * = "");
59 //
60 Int_t GetNParamsSol() const {return fNParamsSol;}
1d18ebe0 61 Int_t GetNSegZSol() const {return fNZSegSol;}
62 Float_t* GetSegZSol() const {return fSegZSol;}
da7cd221 63 //
1d18ebe0 64 Int_t GetNParamsTPCInt() const {return fNParamsTPC;}
65 Int_t GetNSegZTPCInt() const {return fNZSegTPC;}
da7cd221 66 //
47c3d315 67 Int_t GetNParamsTPCRatInt() const {return fNParamsTPCRat;}
68 Int_t GetNSegZTPCRatInt() const {return fNZSegTPCRat;}
69 //
da7cd221 70 Int_t GetNParamsDip() const {return fNParamsDip;}
71 Int_t GetNSegZDip() const {return fNZSegDip;}
72 //
9251fceb 73 Float_t GetMaxZ() const {return GetMaxZSol();}
74 Float_t GetMinZ() const {return fParamsDip ? GetMinZDip() : GetMinZSol();}
da7cd221 75 //
76 Float_t GetMinZSol() const {return fMinZSol;}
77 Float_t GetMaxZSol() const {return fMaxZSol;}
78 Float_t GetMaxRSol() const {return fMaxRSol;}
79 //
80 Float_t GetMinZDip() const {return fMinZDip;}
81 Float_t GetMaxZDip() const {return fMaxZDip;}
82 //
1d18ebe0 83 Float_t GetMinZTPCInt() const {return fMinZTPC;}
84 Float_t GetMaxZTPCInt() const {return fMaxZTPC;}
85 Float_t GetMaxRTPCInt() const {return fMaxRTPC;}
da7cd221 86 //
47c3d315 87 Float_t GetMinZTPCRatInt() const {return fMinZTPCRat;}
88 Float_t GetMaxZTPCRatInt() const {return fMaxZTPCRat;}
89 Float_t GetMaxRTPCRatInt() const {return fMaxRTPCRat;}
90 //
da7cd221 91 AliCheb3D* GetParamSol(Int_t ipar) const {return (AliCheb3D*)fParamsSol->UncheckedAt(ipar);}
47c3d315 92 AliCheb3D* GetParamTPCRatInt(Int_t ipar) const {return (AliCheb3D*)fParamsTPCRat->UncheckedAt(ipar);}
1d18ebe0 93 AliCheb3D* GetParamTPCInt(Int_t ipar) const {return (AliCheb3D*)fParamsTPC->UncheckedAt(ipar);}
da7cd221 94 AliCheb3D* GetParamDip(Int_t ipar) const {return (AliCheb3D*)fParamsDip->UncheckedAt(ipar);}
95 //
96 virtual void Print(Option_t * = "") const;
97 //
db83d72f 98 virtual void Field(const Double_t *xyz, Double_t *b) const;
99 Double_t GetBz(const Double_t *xyz) const;
da7cd221 100 //
47c3d315 101 void FieldCyl(const Double_t *rphiz, Double_t *b) const;
db83d72f 102 void GetTPCInt(const Double_t *xyz, Double_t *b) const;
103 void GetTPCIntCyl(const Double_t *rphiz, Double_t *b) const;
47c3d315 104 void GetTPCRatInt(const Double_t *xyz, Double_t *b) const;
105 void GetTPCRatIntCyl(const Double_t *rphiz, Double_t *b) const;
da7cd221 106 //
1d18ebe0 107 Int_t FindSolSegment(const Double_t *xyz) const;
108 Int_t FindTPCSegment(const Double_t *xyz) const;
47c3d315 109 Int_t FindTPCRatSegment(const Double_t *xyz) const;
db83d72f 110 Int_t FindDipSegment(const Double_t *xyz) const;
111 static void CylToCartCylB(const Double_t *rphiz, const Double_t *brphiz,Double_t *bxyz);
112 static void CylToCartCartB(const Double_t *xyz, const Double_t *brphiz,Double_t *bxyz);
113 static void CartToCylCartB(const Double_t *xyz, const Double_t *bxyz, Double_t *brphiz);
114 static void CartToCylCylB(const Double_t *rphiz, const Double_t *bxyz, Double_t *brphiz);
115 static void CartToCyl(const Double_t *xyz, Double_t *rphiz);
116 static void CylToCart(const Double_t *rphiz,Double_t *xyz);
da7cd221 117 //
118#ifdef _INC_CREATION_ALICHEB3D_ // see AliCheb3D.h for explanation
119 void LoadData(const char* inpfile);
120 //
121 AliMagWrapCheb(const char* inputFile);
db83d72f 122 void SaveData(const char* outfile) const;
1d18ebe0 123 Int_t SegmentDimension(Float_t** seg,const TObjArray* par,int npar, int dim,
124 Float_t xmn,Float_t xmx,Float_t ymn,Float_t ymx,Float_t zmn,Float_t zmx);
da7cd221 125 //
126 void AddParamSol(const AliCheb3D* param);
127 void AddParamTPCInt(const AliCheb3D* param);
47c3d315 128 void AddParamTPCRatInt(const AliCheb3D* param);
da7cd221 129 void AddParamDip(const AliCheb3D* param);
1d18ebe0 130 void BuildTable(Int_t npar,TObjArray *parArr, Int_t &nZSeg, Int_t &nYSeg, Int_t &nXSeg,
131 Float_t &minZ,Float_t &maxZ,Float_t **segZ,Float_t **segY,Float_t **segX,
132 Int_t **begSegY,Int_t **nSegY,Int_t **begSegX,Int_t **nSegX,Int_t **segID);
da7cd221 133 void BuildTableSol();
1d18ebe0 134 void BuildTableDip();
da7cd221 135 void BuildTableTPCInt();
47c3d315 136 void BuildTableTPCRatInt();
da7cd221 137 void ResetTPCInt();
47c3d315 138 void ResetTPCRatInt();
8947c207 139 void ResetSol();
140 void ResetDip();
da7cd221 141 //
142 //
143#endif
a1dde210 144 //
145 protected:
db83d72f 146 void FieldCylSol(const Double_t *rphiz, Double_t *b) const;
147 Double_t FieldCylSolBz(const Double_t *rphiz) const;
da7cd221 148 //
149 protected:
150 //
1d18ebe0 151 Int_t fNParamsSol; // Total number of parameterization pieces for solenoid
152 Int_t fNZSegSol; // number of distinct Z segments in Solenoid
153 Int_t fNPSegSol; // number of distinct P segments in Solenoid
154 Int_t fNRSegSol; // number of distinct R segments in Solenoid
155 Float_t* fSegZSol; //[fNZSegSol] coordinates of distinct Z segments in Solenoid
156 Float_t* fSegPSol; //[fNPSegSol] coordinated of P segments for each Zsegment in Solenoid
157 Float_t* fSegRSol; //[fNRSegSol] coordinated of R segments for each Psegment in Solenoid
158 Int_t* fBegSegPSol; //[fNPSegSol] beginning of P segments array for each Z segment
159 Int_t* fNSegPSol; //[fNZSegSol] number of P segments for each Z segment
160 Int_t* fBegSegRSol; //[fNPSegSol] beginning of R segments array for each P segment
161 Int_t* fNSegRSol; //[fNPSegSol] number of R segments for each P segment
162 Int_t* fSegIDSol; //[fNRSegSol] ID of the solenoid parameterization for given RPZ segment
163 Float_t fMinZSol; // Min Z of Solenoid parameterization
164 Float_t fMaxZSol; // Max Z of Solenoid parameterization
165 TObjArray* fParamsSol; // Parameterization pieces for Solenoid field
166 Float_t fMaxRSol; // max raduis for Solenoid field
167 //
168 Int_t fNParamsTPC; // Total number of parameterization pieces for TPCint
169 Int_t fNZSegTPC; // number of distinct Z segments in TPCint
170 Int_t fNPSegTPC; // number of distinct P segments in TPCint
171 Int_t fNRSegTPC; // number of distinct R segments in TPCint
172 Float_t* fSegZTPC; //[fNZSegTPC] coordinates of distinct Z segments in TPCint
173 Float_t* fSegPTPC; //[fNPSegTPC] coordinated of P segments for each Zsegment in TPCint
174 Float_t* fSegRTPC; //[fNRSegTPC] coordinated of R segments for each Psegment in TPCint
175 Int_t* fBegSegPTPC; //[fNPSegTPC] beginning of P segments array for each Z segment
176 Int_t* fNSegPTPC; //[fNZSegTPC] number of P segments for each Z segment
177 Int_t* fBegSegRTPC; //[fNPSegTPC] beginning of R segments array for each P segment
178 Int_t* fNSegRTPC; //[fNPSegTPC] number of R segments for each P segment
179 Int_t* fSegIDTPC; //[fNRSegTPC] ID of the TPCint parameterization for given RPZ segment
180 Float_t fMinZTPC; // Min Z of TPCint parameterization
181 Float_t fMaxZTPC; // Max Z of TPCint parameterization
182 TObjArray* fParamsTPC; // Parameterization pieces for TPCint field
183 Float_t fMaxRTPC; // max raduis for Solenoid field integral in TPC
da7cd221 184 //
47c3d315 185 Int_t fNParamsTPCRat; // Total number of parameterization pieces for tr.field to Bz integrals in TPC region
186 Int_t fNZSegTPCRat; // number of distinct Z segments in TpcRatInt
187 Int_t fNPSegTPCRat; // number of distinct P segments in TpcRatInt
188 Int_t fNRSegTPCRat; // number of distinct R segments in TpcRatInt
189 Float_t* fSegZTPCRat; //[fNZSegTPCRat] coordinates of distinct Z segments in TpcRatInt
190 Float_t* fSegPTPCRat; //[fNPSegTPCRat] coordinated of P segments for each Zsegment in TpcRatInt
191 Float_t* fSegRTPCRat; //[fNRSegTPCRat] coordinated of R segments for each Psegment in TpcRatInt
192 Int_t* fBegSegPTPCRat; //[fNPSegTPCRat] beginning of P segments array for each Z segment
193 Int_t* fNSegPTPCRat; //[fNZSegTPCRat] number of P segments for each Z segment
194 Int_t* fBegSegRTPCRat; //[fNPSegTPCRat] beginning of R segments array for each P segment
195 Int_t* fNSegRTPCRat; //[fNPSegTPCRat] number of R segments for each P segment
196 Int_t* fSegIDTPCRat; //[fNRSegTPCRat] ID of the TpcRatInt parameterization for given RPZ segment
197 Float_t fMinZTPCRat; // Min Z of TpcRatInt parameterization
198 Float_t fMaxZTPCRat; // Max Z of TpcRatInt parameterization
199 TObjArray* fParamsTPCRat; // Parameterization pieces for TpcRatInt field
200 Float_t fMaxRTPCRat; // max raduis for Solenoid field ratios integral in TPC
201 //
da7cd221 202 Int_t fNParamsDip; // Total number of parameterization pieces for dipole
203 Int_t fNZSegDip; // number of distinct Z segments in Dipole
204 Int_t fNYSegDip; // number of distinct Y segments in Dipole
205 Int_t fNXSegDip; // number of distinct X segments in Dipole
da7cd221 206 Float_t* fSegZDip; //[fNZSegDip] coordinates of distinct Z segments in Dipole
207 Float_t* fSegYDip; //[fNYSegDip] coordinated of Y segments for each Zsegment in Dipole
208 Float_t* fSegXDip; //[fNXSegDip] coordinated of X segments for each Ysegment in Dipole
da7cd221 209 Int_t* fBegSegYDip; //[fNZSegDip] beginning of Y segments array for each Z segment
210 Int_t* fNSegYDip; //[fNZSegDip] number of Y segments for each Z segment
211 Int_t* fBegSegXDip; //[fNYSegDip] beginning of X segments array for each Y segment
212 Int_t* fNSegXDip; //[fNYSegDip] number of X segments for each Y segment
213 Int_t* fSegIDDip; //[fNXSegDip] ID of the dipole parameterization for given XYZ segment
da7cd221 214 Float_t fMinZDip; // Min Z of Dipole parameterization
215 Float_t fMaxZDip; // Max Z of Dipole parameterization
da7cd221 216 TObjArray* fParamsDip; // Parameterization pieces for Dipole field
da7cd221 217 //
47c3d315 218 ClassDef(AliMagWrapCheb,7) // Wrapper class for the set of Chebishev parameterizations of Alice mag.field
da7cd221 219 //
220 };
221
222
da7cd221 223//__________________________________________________________________________________________
224inline void AliMagWrapCheb::FieldCyl(const Double_t *rphiz, Double_t *b) const
225{
226 // compute field in Cylindircal coordinates
227 // if (rphiz[2]<GetMinZSol() || rphiz[2]>GetMaxZSol() || rphiz[0]>GetMaxRSol()) {for (int i=3;i--;) b[i]=0; return;}
1d18ebe0 228 b[0] = b[1] = b[2] = 0;
da7cd221 229 FieldCylSol(rphiz,b);
230}
231
232//__________________________________________________________________________________________________
db83d72f 233inline void AliMagWrapCheb::CylToCartCylB(const Double_t *rphiz, const Double_t *brphiz,Double_t *bxyz)
da7cd221 234{
235 // convert field in cylindrical coordinates to cartesian system, point is in cyl.system
db83d72f 236 Double_t btr = TMath::Sqrt(brphiz[0]*brphiz[0]+brphiz[1]*brphiz[1]);
237 Double_t psiPLUSphi = TMath::ATan2(brphiz[1],brphiz[0]) + rphiz[1];
da7cd221 238 bxyz[0] = btr*TMath::Cos(psiPLUSphi);
239 bxyz[1] = btr*TMath::Sin(psiPLUSphi);
240 bxyz[2] = brphiz[2];
241 //
242}
243
244//__________________________________________________________________________________________________
db83d72f 245inline void AliMagWrapCheb::CylToCartCartB(const Double_t* xyz, const Double_t *brphiz, Double_t *bxyz)
da7cd221 246{
247 // convert field in cylindrical coordinates to cartesian system, point is in cart.system
db83d72f 248 Double_t btr = TMath::Sqrt(brphiz[0]*brphiz[0]+brphiz[1]*brphiz[1]);
249 Double_t phiPLUSpsi = TMath::ATan2(xyz[1],xyz[0]) + TMath::ATan2(brphiz[1],brphiz[0]);
da7cd221 250 bxyz[0] = btr*TMath::Cos(phiPLUSpsi);
251 bxyz[1] = btr*TMath::Sin(phiPLUSpsi);
252 bxyz[2] = brphiz[2];
253 //
254}
255
256//__________________________________________________________________________________________________
db83d72f 257inline void AliMagWrapCheb::CartToCylCartB(const Double_t *xyz, const Double_t *bxyz, Double_t *brphiz)
da7cd221 258{
259 // convert field in cylindrical coordinates to cartesian system, poin is in cart.system
db83d72f 260 Double_t btr = TMath::Sqrt(bxyz[0]*bxyz[0]+bxyz[1]*bxyz[1]);
261 Double_t psiMINphi = TMath::ATan2(bxyz[1],bxyz[0]) - TMath::ATan2(xyz[1],xyz[0]);
da7cd221 262 //
263 brphiz[0] = btr*TMath::Cos(psiMINphi);
264 brphiz[1] = btr*TMath::Sin(psiMINphi);
265 brphiz[2] = bxyz[2];
266 //
267}
268
269//__________________________________________________________________________________________________
db83d72f 270inline void AliMagWrapCheb::CartToCylCylB(const Double_t *rphiz, const Double_t *bxyz, Double_t *brphiz)
da7cd221 271{
272 // convert field in cylindrical coordinates to cartesian system, point is in cyl.system
db83d72f 273 Double_t btr = TMath::Sqrt(bxyz[0]*bxyz[0]+bxyz[1]*bxyz[1]);
274 Double_t psiMINphi = TMath::ATan2(bxyz[1],bxyz[0]) - rphiz[1];
da7cd221 275 brphiz[0] = btr*TMath::Cos(psiMINphi);
276 brphiz[1] = btr*TMath::Sin(psiMINphi);
277 brphiz[2] = bxyz[2];
278 //
279}
a1dde210 280
da7cd221 281//__________________________________________________________________________________________________
db83d72f 282inline void AliMagWrapCheb::CartToCyl(const Double_t *xyz, Double_t *rphiz)
da7cd221 283{
284 rphiz[0] = TMath::Sqrt(xyz[0]*xyz[0]+xyz[1]*xyz[1]);
285 rphiz[1] = TMath::ATan2(xyz[1],xyz[0]);
286 rphiz[2] = xyz[2];
287}
288
289//__________________________________________________________________________________________________
db83d72f 290inline void AliMagWrapCheb::CylToCart(const Double_t *rphiz, Double_t *xyz)
da7cd221 291{
292 xyz[0] = rphiz[0]*TMath::Cos(rphiz[1]);
293 xyz[1] = rphiz[0]*TMath::Sin(rphiz[1]);
294 xyz[2] = rphiz[2];
295}
296
a1dde210 297#endif