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Analysis with correction for double hits (work in progress) and analysis independent...
[u/mrichter/AliRoot.git] / STEER / AliMagWrapCheb.cxx
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a1dde210 1/**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
3 * *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
6 * *
7 * Permission to use, copy, modify and distribute this software and its *
8 * documentation strictly for non-commercial purposes is hereby granted *
9 * without fee, provided that the above copyright notice appears in all *
10 * copies and that both the copyright notice and this permission notice *
11 * appear in the supporting documentation. The authors make no claims *
12 * about the suitability of this software for any purpose. It is *
13 * provided "as is" without express or implied warranty. *
14 **************************************************************************/
15
a1dde210 16#include "AliMagWrapCheb.h"
da7cd221 17#include <TSystem.h>
18#include <TArrayF.h>
19#include <TArrayI.h>
a1dde210 20
21ClassImp(AliMagWrapCheb)
a1dde210 22
da7cd221 23//__________________________________________________________________________________________
24AliMagWrapCheb::AliMagWrapCheb() :
1d18ebe0 25fNParamsSol(0),fNZSegSol(0),fNPSegSol(0),fNRSegSol(0),
26 fSegZSol(0),fSegPSol(0),fSegRSol(0),
27 fBegSegPSol(0),fNSegPSol(0),fBegSegRSol(0),fNSegRSol(0),fSegIDSol(0),fMinZSol(1.e6),fMaxZSol(-1.e6),fParamsSol(0),fMaxRSol(0),
da7cd221 28//
1d18ebe0 29 fNParamsTPC(0),fNZSegTPC(0),fNPSegTPC(0),fNRSegTPC(0),
30 fSegZTPC(0),fSegPTPC(0),fSegRTPC(0),
31 fBegSegPTPC(0),fNSegPTPC(0),fBegSegRTPC(0),fNSegRTPC(0),fSegIDTPC(0),fMinZTPC(1.e6),fMaxZTPC(-1.e6),fParamsTPC(0),fMaxRTPC(0),
da7cd221 32//
1d18ebe0 33 fNParamsDip(0),fNZSegDip(0),fNYSegDip(0),fNXSegDip(0),
34 fSegZDip(0),fSegYDip(0),fSegXDip(0),
35 fBegSegYDip(0),fNSegYDip(0),fBegSegXDip(0),fNSegXDip(0),fSegIDDip(0),fMinZDip(1.e6),fMaxZDip(-1.e6),fParamsDip(0)
da7cd221 36//
a1dde210 37{
da7cd221 38 // default constructor
a1dde210 39}
40
da7cd221 41//__________________________________________________________________________________________
42AliMagWrapCheb::AliMagWrapCheb(const AliMagWrapCheb& src) :
43 TNamed(src),
1d18ebe0 44 fNParamsSol(0),fNZSegSol(0),fNPSegSol(0),fNRSegSol(0),
45 fSegZSol(0),fSegPSol(0),fSegRSol(0),
46 fBegSegPSol(0),fNSegPSol(0),fBegSegRSol(0),fNSegRSol(0),fSegIDSol(0),fMinZSol(1.e6),fMaxZSol(-1.e6),fParamsSol(0),fMaxRSol(0),
da7cd221 47//
1d18ebe0 48 fNParamsTPC(0),fNZSegTPC(0),fNPSegTPC(0),fNRSegTPC(0),
49 fSegZTPC(0),fSegPTPC(0),fSegRTPC(0),
50 fBegSegPTPC(0),fNSegPTPC(0),fBegSegRTPC(0),fNSegRTPC(0),fSegIDTPC(0),fMinZTPC(1.e6),fMaxZTPC(-1.e6),fParamsTPC(0),fMaxRTPC(0),
da7cd221 51//
1d18ebe0 52 fNParamsDip(0),fNZSegDip(0),fNYSegDip(0),fNXSegDip(0),
53 fSegZDip(0),fSegYDip(0),fSegXDip(0),
54 fBegSegYDip(0),fNSegYDip(0),fBegSegXDip(0),fNSegXDip(0),fSegIDDip(0),fMinZDip(1.e6),fMaxZDip(-1.e6),fParamsDip(0)
a1dde210 55{
da7cd221 56 // copy constructor
57 CopyFrom(src);
58}
59
60//__________________________________________________________________________________________
61void AliMagWrapCheb::CopyFrom(const AliMagWrapCheb& src)
62{
63 // copy method
64 Clear();
65 SetName(src.GetName());
66 SetTitle(src.GetTitle());
1d18ebe0 67 //
da7cd221 68 fNParamsSol = src.fNParamsSol;
1d18ebe0 69 fNZSegSol = src.fNZSegSol;
70 fNPSegSol = src.fNPSegSol;
71 fNRSegSol = src.fNRSegSol;
72 fMinZSol = src.fMinZSol;
73 fMaxZSol = src.fMaxZSol;
74 fMaxRSol = src.fMaxRSol;
75 if (src.fNParamsSol) {
76 memcpy(fSegZSol = new Float_t[fNZSegSol], src.fSegZSol, sizeof(Float_t)*fNZSegSol);
77 memcpy(fSegPSol = new Float_t[fNPSegSol], src.fSegPSol, sizeof(Float_t)*fNPSegSol);
78 memcpy(fSegRSol = new Float_t[fNRSegSol], src.fSegRSol, sizeof(Float_t)*fNRSegSol);
79 memcpy(fBegSegPSol= new Int_t[fNZSegSol], src.fBegSegPSol, sizeof(Int_t)*fNZSegSol);
80 memcpy(fNSegPSol = new Int_t[fNZSegSol], src.fNSegPSol, sizeof(Int_t)*fNZSegSol);
81 memcpy(fBegSegRSol= new Int_t[fNPSegSol], src.fBegSegRSol, sizeof(Int_t)*fNPSegSol);
82 memcpy(fNSegRSol = new Int_t[fNPSegSol], src.fNSegRSol, sizeof(Int_t)*fNPSegSol);
83 memcpy(fSegIDSol = new Int_t[fNRSegSol], src.fSegIDSol, sizeof(Int_t)*fNRSegSol);
84 fParamsSol = new TObjArray(fNParamsSol);
85 for (int i=0;i<fNParamsSol;i++) fParamsSol->AddAtAndExpand(new AliCheb3D(*src.GetParamSol(i)),i);
86 }
a1dde210 87 //
1d18ebe0 88 fNParamsTPC = src.fNParamsTPC;
89 fNZSegTPC = src.fNZSegTPC;
90 fNPSegTPC = src.fNPSegTPC;
91 fNRSegTPC = src.fNRSegTPC;
92 fMinZTPC = src.fMinZTPC;
93 fMaxZTPC = src.fMaxZTPC;
94 fMaxRTPC = src.fMaxRTPC;
95 if (src.fNParamsTPC) {
96 memcpy(fSegZTPC = new Float_t[fNZSegTPC], src.fSegZTPC, sizeof(Float_t)*fNZSegTPC);
97 memcpy(fSegPTPC = new Float_t[fNPSegTPC], src.fSegPTPC, sizeof(Float_t)*fNPSegTPC);
98 memcpy(fSegRTPC = new Float_t[fNRSegTPC], src.fSegRTPC, sizeof(Float_t)*fNRSegTPC);
99 memcpy(fBegSegPTPC= new Int_t[fNZSegTPC], src.fBegSegPTPC, sizeof(Int_t)*fNZSegTPC);
100 memcpy(fNSegPTPC = new Int_t[fNZSegTPC], src.fNSegPTPC, sizeof(Int_t)*fNZSegTPC);
101 memcpy(fBegSegRTPC= new Int_t[fNPSegTPC], src.fBegSegRTPC, sizeof(Int_t)*fNPSegTPC);
102 memcpy(fNSegRTPC = new Int_t[fNPSegTPC], src.fNSegRTPC, sizeof(Int_t)*fNPSegTPC);
103 memcpy(fSegIDTPC = new Int_t[fNRSegTPC], src.fSegIDTPC, sizeof(Int_t)*fNRSegTPC);
104 fParamsTPC = new TObjArray(fNParamsTPC);
105 for (int i=0;i<fNParamsTPC;i++) fParamsTPC->AddAtAndExpand(new AliCheb3D(*src.GetParamTPCInt(i)),i);
106 }
107 //
108 fNParamsDip = src.fNParamsDip;
da7cd221 109 fNZSegDip = src.fNZSegDip;
110 fNYSegDip = src.fNYSegDip;
111 fNXSegDip = src.fNXSegDip;
da7cd221 112 fMinZDip = src.fMinZDip;
113 fMaxZDip = src.fMaxZDip;
da7cd221 114 if (src.fNParamsDip) {
115 memcpy(fSegZDip = new Float_t[fNZSegDip], src.fSegZDip, sizeof(Float_t)*fNZSegDip);
116 memcpy(fSegYDip = new Float_t[fNYSegDip], src.fSegYDip, sizeof(Float_t)*fNYSegDip);
82d1e556 117 memcpy(fSegXDip = new Float_t[fNXSegDip], src.fSegXDip, sizeof(Float_t)*fNXSegDip);
da7cd221 118 memcpy(fBegSegYDip= new Int_t[fNZSegDip], src.fBegSegYDip, sizeof(Int_t)*fNZSegDip);
119 memcpy(fNSegYDip = new Int_t[fNZSegDip], src.fNSegYDip, sizeof(Int_t)*fNZSegDip);
120 memcpy(fBegSegXDip= new Int_t[fNYSegDip], src.fBegSegXDip, sizeof(Int_t)*fNYSegDip);
121 memcpy(fNSegXDip = new Int_t[fNYSegDip], src.fNSegXDip, sizeof(Int_t)*fNYSegDip);
122 memcpy(fSegIDDip = new Int_t[fNXSegDip], src.fSegIDDip, sizeof(Int_t)*fNXSegDip);
123 fParamsDip = new TObjArray(fNParamsDip);
124 for (int i=0;i<fNParamsDip;i++) fParamsDip->AddAtAndExpand(new AliCheb3D(*src.GetParamDip(i)),i);
a1dde210 125 }
126 //
da7cd221 127}
128
129//__________________________________________________________________________________________
130AliMagWrapCheb& AliMagWrapCheb::operator=(const AliMagWrapCheb& rhs)
131{
132 // assignment
133 if (this != &rhs) {
134 Clear();
135 CopyFrom(rhs);
a1dde210 136 }
da7cd221 137 return *this;
138 //
a1dde210 139}
140
da7cd221 141//__________________________________________________________________________________________
142void AliMagWrapCheb::Clear(const Option_t *)
143{
144 // clear all dynamic parts
145 if (fNParamsSol) {
1d18ebe0 146 delete fParamsSol; fParamsSol = 0;
147 delete[] fSegZSol; fSegZSol = 0;
148 delete[] fSegPSol; fSegPSol = 0;
149 delete[] fSegRSol; fSegRSol = 0;
150 delete[] fBegSegPSol; fBegSegPSol = 0;
151 delete[] fNSegPSol; fNSegPSol = 0;
152 delete[] fBegSegRSol; fBegSegRSol = 0;
153 delete[] fNSegRSol; fNSegRSol = 0;
154 delete[] fSegIDSol; fSegIDSol = 0;
da7cd221 155 }
1d18ebe0 156 fNParamsSol = fNZSegSol = fNPSegSol = fNRSegSol = 0;
157 fMinZSol = 1e6;
158 fMaxZSol = -1e6;
159 fMaxRSol = 0;
da7cd221 160 //
1d18ebe0 161 if (fNParamsTPC) {
162 delete fParamsTPC; fParamsTPC = 0;
163 delete[] fSegZTPC; fSegZTPC = 0;
164 delete[] fSegPTPC; fSegPTPC = 0;
165 delete[] fSegRTPC; fSegRTPC = 0;
166 delete[] fBegSegPTPC; fBegSegPTPC = 0;
167 delete[] fNSegPTPC; fNSegPTPC = 0;
168 delete[] fBegSegRTPC; fBegSegRTPC = 0;
169 delete[] fNSegRTPC; fNSegRTPC = 0;
170 delete[] fSegIDTPC; fSegIDTPC = 0;
da7cd221 171 }
1d18ebe0 172 fNParamsTPC = fNZSegTPC = fNPSegTPC = fNRSegTPC = 0;
173 fMinZTPC = 1e6;
174 fMaxZTPC = -1e6;
175 fMaxRTPC = 0;
176 //
da7cd221 177 if (fNParamsDip) {
1d18ebe0 178 delete fParamsDip; fParamsDip = 0;
179 delete[] fSegZDip; fSegZDip = 0;
180 delete[] fSegYDip; fSegYDip = 0;
181 delete[] fSegXDip; fSegXDip = 0;
182 delete[] fBegSegYDip; fBegSegYDip = 0;
183 delete[] fNSegYDip; fNSegYDip = 0;
184 delete[] fBegSegXDip; fBegSegXDip = 0;
185 delete[] fNSegXDip; fNSegXDip = 0;
186 delete[] fSegIDDip; fSegIDDip = 0;
da7cd221 187 }
1d18ebe0 188 fNParamsDip = fNZSegDip = fNYSegDip = fNXSegDip = 0;
189 fMinZDip = 1e6;
190 fMaxZDip = -1e6;
da7cd221 191 //
192}
a1dde210 193
da7cd221 194//__________________________________________________________________________________________
db83d72f 195void AliMagWrapCheb::Field(const Double_t *xyz, Double_t *b) const
a1dde210 196{
da7cd221 197 // compute field in cartesian coordinates. If point is outside of the parameterized region
198 // get it at closest valid point
1d18ebe0 199 Double_t rphiz[3];
da7cd221 200 //
201#ifndef _BRING_TO_BOUNDARY_ // exact matching to fitted volume is requested
1d18ebe0 202 b[0] = b[1] = b[2] = 0;
da7cd221 203#endif
204 //
1d18ebe0 205 if (xyz[2]>fMinZSol) {
206 CartToCyl(xyz,rphiz);
207 FieldCylSol(rphiz,b);
208 // convert field to cartesian system
209 CylToCartCylB(rphiz, b,b);
210 return;
da7cd221 211 }
212 //
1d18ebe0 213 int iddip = FindDipSegment(xyz);
214 if (iddip<0) return;
215 AliCheb3D* par = GetParamDip(iddip);
da7cd221 216#ifndef _BRING_TO_BOUNDARY_
1d18ebe0 217 if (!par->IsInside(xyz)) return;
da7cd221 218#endif
1d18ebe0 219 par->Eval(xyz,b);
da7cd221 220 //
a1dde210 221}
222
da7cd221 223//__________________________________________________________________________________________
db83d72f 224Double_t AliMagWrapCheb::GetBz(const Double_t *xyz) const
a1dde210 225{
db83d72f 226 // compute Bz for the point in cartesian coordinates. If point is outside of the parameterized region
da7cd221 227 // get it at closest valid point
1d18ebe0 228 Double_t rphiz[3];
da7cd221 229 //
1d18ebe0 230 if (xyz[2]>fMinZSol) {
231 CartToCyl(xyz,rphiz);
232 return FieldCylSolBz(rphiz);
da7cd221 233 }
1d18ebe0 234 //
235 int iddip = FindDipSegment(xyz);
236 if (iddip<0) return 0.;
237 AliCheb3D* par = GetParamDip(iddip);
9251fceb 238#ifndef _BRING_TO_BOUNDARY_
1d18ebe0 239 if (!par->IsInside(xyz)) return 0.;
9251fceb 240#endif
1d18ebe0 241 return par->Eval(xyz,2);
db83d72f 242}
243
244
245//__________________________________________________________________________________________
246void AliMagWrapCheb::Print(Option_t *) const
247{
248 // print info
249 printf("Alice magnetic field parameterized by Chebyshev polynomials\n");
250 printf("Segmentation for Solenoid (%+.2f<Z<%+.2f cm | R<%.2f cm)\n",fMinZSol,fMaxZSol,fMaxRSol);
da7cd221 251 //
82d1e556 252 if (fParamsSol) {
253 for (int i=0;i<fNParamsSol;i++) {
254 printf("SOL%4d ",i);
255 GetParamSol(i)->Print();
256 }
257 }
da7cd221 258 //
1d18ebe0 259 printf("Segmentation for TPC field integral (%+.2f<Z<%+.2f cm | R<%.2f cm)\n",fMinZTPC,fMaxZTPC,fMaxRTPC);
da7cd221 260 //
1d18ebe0 261 if (fParamsTPC) {
262 for (int i=0;i<fNParamsTPC;i++) {
82d1e556 263 printf("TPC%4d ",i);
264 GetParamTPCInt(i)->Print();
265 }
266 }
267 //
db83d72f 268 printf("Segmentation for Dipole (%+.2f<Z<%+.2f cm)\n",fMinZDip,fMaxZDip);
82d1e556 269 if (fParamsDip) {
270 for (int i=0;i<fNParamsDip;i++) {
271 printf("DIP%4d ",i);
272 GetParamDip(i)->Print();
273 }
274 }
db83d72f 275 //
db83d72f 276}
277
db83d72f 278//__________________________________________________________________________________________________
1d18ebe0 279Int_t AliMagWrapCheb::FindDipSegment(const Double_t *xyz) const
db83d72f 280{
281 // find the segment containing point xyz. If it is outside find the closest segment
1d18ebe0 282 if (!fNParamsDip) return -1;
db83d72f 283 int xid,yid,zid = TMath::BinarySearch(fNZSegDip,fSegZDip,(Float_t)xyz[2]); // find zsegment
284 int ysegBeg = fBegSegYDip[zid];
285 //
286 for (yid=0;yid<fNSegYDip[zid];yid++) if (xyz[1]<fSegYDip[ysegBeg+yid]) break;
287 if ( --yid < 0 ) yid = 0;
288 yid += ysegBeg;
289 //
290 int xsegBeg = fBegSegXDip[yid];
291 for (xid=0;xid<fNSegXDip[yid];xid++) if (xyz[0]<fSegXDip[xsegBeg+xid]) break;
292 if ( --xid < 0) xid = 0;
293 xid += xsegBeg;
294 //
295 return fSegIDDip[xid];
a1dde210 296}
297
1d18ebe0 298//__________________________________________________________________________________________________
299Int_t AliMagWrapCheb::FindSolSegment(const Double_t *rpz) const
300{
301 // find the segment containing point xyz. If it is outside find the closest segment
302 if (!fNParamsSol) return -1;
303 int rid,pid,zid = TMath::BinarySearch(fNZSegSol,fSegZSol,(Float_t)rpz[2]); // find zsegment
304 int psegBeg = fBegSegPSol[zid];
305 //
306 for (pid=0;pid<fNSegPSol[zid];pid++) if (rpz[1]<fSegPSol[psegBeg+pid]) break;
307 if ( --pid < 0 ) pid = 0;
308 pid += psegBeg;
309 //
310 int rsegBeg = fBegSegRSol[pid];
311 for (rid=0;rid<fNSegRSol[pid];rid++) if (rpz[0]<fSegRSol[rsegBeg+rid]) break;
312 if ( --rid < 0) rid = 0;
313 rid += rsegBeg;
314 //
315 return fSegIDSol[rid];
316}
317
318//__________________________________________________________________________________________________
319Int_t AliMagWrapCheb::FindTPCSegment(const Double_t *rpz) const
320{
321 // find the segment containing point xyz. If it is outside find the closest segment
322 if (!fNParamsTPC) return -1;
323 int rid,pid,zid = TMath::BinarySearch(fNZSegTPC,fSegZTPC,(Float_t)rpz[2]); // find zsegment
324 int psegBeg = fBegSegPTPC[zid];
325 //
326 for (pid=0;pid<fNSegPTPC[zid];pid++) if (rpz[1]<fSegPTPC[psegBeg+pid]) break;
327 if ( --pid < 0 ) pid = 0;
328 pid += psegBeg;
329 //
330 int rsegBeg = fBegSegRTPC[pid];
331 for (rid=0;rid<fNSegRTPC[pid];rid++) if (rpz[0]<fSegRTPC[rsegBeg+rid]) break;
332 if ( --rid < 0) rid = 0;
333 rid += rsegBeg;
334 //
335 return fSegIDTPC[rid];
336}
337
338
da7cd221 339//__________________________________________________________________________________________
db83d72f 340void AliMagWrapCheb::GetTPCInt(const Double_t *xyz, Double_t *b) const
a1dde210 341{
da7cd221 342 // compute TPC region field integral in cartesian coordinates.
343 // If point is outside of the parameterized region get it at closeset valid point
db83d72f 344 static Double_t rphiz[3];
da7cd221 345 //
346 // TPCInt region
347 // convert coordinates to cyl system
348 CartToCyl(xyz,rphiz);
349#ifndef _BRING_TO_BOUNDARY_
350 if ( (rphiz[2]>GetMaxZTPCInt()||rphiz[2]<GetMinZTPCInt()) ||
351 rphiz[0]>GetMaxRTPCInt()) {for (int i=3;i--;) b[i]=0; return;}
352#endif
353 //
354 GetTPCIntCyl(rphiz,b);
355 //
356 // convert field to cartesian system
357 CylToCartCylB(rphiz, b,b);
358 //
359}
360
361//__________________________________________________________________________________________
db83d72f 362void AliMagWrapCheb::FieldCylSol(const Double_t *rphiz, Double_t *b) const
da7cd221 363{
364 // compute Solenoid field in Cylindircal coordinates
365 // note: if the point is outside the volume get the field in closest parameterized point
1d18ebe0 366 int id = FindSolSegment(rphiz);
367 if (id<0) return;
368 AliCheb3D* par = GetParamSol(id);
369#ifndef _BRING_TO_BOUNDARY_ // exact matching to fitted volume is requested
370 if (!par->IsInside(rphiz)) return;
371#endif
372 par->Eval(rphiz,b);
373 return;
da7cd221 374 //
375}
376
377//__________________________________________________________________________________________
db83d72f 378Double_t AliMagWrapCheb::FieldCylSolBz(const Double_t *rphiz) const
da7cd221 379{
380 // compute Solenoid field in Cylindircal coordinates
381 // note: if the point is outside the volume get the field in closest parameterized point
1d18ebe0 382 int id = FindSolSegment(rphiz);
383 if (id<0) return 0.;
384 AliCheb3D* par = GetParamSol(id);
385#ifndef _BRING_TO_BOUNDARY_
386 return par->IsInside(rphiz) ? par->Eval(rphiz,2) : 0;
387#endif
388 return par->Eval(rphiz,2);
a1dde210 389 //
a1dde210 390}
391
da7cd221 392//__________________________________________________________________________________________
db83d72f 393void AliMagWrapCheb::GetTPCIntCyl(const Double_t *rphiz, Double_t *b) const
a1dde210 394{
da7cd221 395 // compute field integral in TPC region in Cylindircal coordinates
396 // note: the check for the point being inside the parameterized region is done outside
1d18ebe0 397 int id = FindTPCSegment(rphiz);
398 if (id<0) {
399 b[0] = b[1] = b[2] = 0;
400 return;
401 }
402 AliCheb3D* par = GetParamTPCInt(id);
403 if (par->IsInside(rphiz)) {par->Eval(rphiz,b); return;}
404 b[0] = b[1] = b[2] = 0;
405 return;
da7cd221 406 //
a1dde210 407}
408
da7cd221 409
da7cd221 410#ifdef _INC_CREATION_ALICHEB3D_
411//_______________________________________________
412void AliMagWrapCheb::LoadData(const char* inpfile)
413{
414 // read coefficients data from the text file
415 //
416 TString strf = inpfile;
417 gSystem->ExpandPathName(strf);
418 FILE* stream = fopen(strf,"r");
419 if (!stream) {
420 printf("Did not find input file %s\n",strf.Data());
421 return;
422 }
423 //
424 TString buffs;
425 AliCheb3DCalc::ReadLine(buffs,stream);
426 if (!buffs.BeginsWith("START")) {
427 Error("LoadData","Expected: \"START <name>\", found \"%s\"\nStop\n",buffs.Data());
428 exit(1);
429 }
430 if (buffs.First(' ')>0) SetName(buffs.Data()+buffs.First(' ')+1);
431 //
432 // Solenoid part -----------------------------------------------------------
433 AliCheb3DCalc::ReadLine(buffs,stream);
434 if (!buffs.BeginsWith("START SOLENOID")) {
435 Error("LoadData","Expected: \"START SOLENOID\", found \"%s\"\nStop\n",buffs.Data());
436 exit(1);
437 }
438 AliCheb3DCalc::ReadLine(buffs,stream); // nparam
439 int nparSol = buffs.Atoi();
440 //
441 for (int ip=0;ip<nparSol;ip++) {
442 AliCheb3D* cheb = new AliCheb3D();
443 cheb->LoadData(stream);
444 AddParamSol(cheb);
445 }
446 //
447 AliCheb3DCalc::ReadLine(buffs,stream);
448 if (!buffs.BeginsWith("END SOLENOID")) {
449 Error("LoadData","Expected \"END SOLENOID\", found \"%s\"\nStop\n",buffs.Data());
450 exit(1);
451 }
452 //
453 // TPCInt part -----------------------------------------------------------
454 AliCheb3DCalc::ReadLine(buffs,stream);
455 if (!buffs.BeginsWith("START TPCINT")) {
456 Error("LoadData","Expected: \"START TPCINT\", found \"%s\"\nStop\n",buffs.Data());
457 exit(1);
458 }
459 AliCheb3DCalc::ReadLine(buffs,stream); // nparam
460 int nparTPCInt = buffs.Atoi();
461 //
462 for (int ip=0;ip<nparTPCInt;ip++) {
463 AliCheb3D* cheb = new AliCheb3D();
464 cheb->LoadData(stream);
465 AddParamTPCInt(cheb);
466 }
467 //
468 AliCheb3DCalc::ReadLine(buffs,stream);
469 if (!buffs.BeginsWith("END TPCINT")) {
470 Error("LoadData","Expected \"END TPCINT\", found \"%s\"\nStop\n",buffs.Data());
471 exit(1);
472 }
473 //
474 // Dipole part -----------------------------------------------------------
475 AliCheb3DCalc::ReadLine(buffs,stream);
476 if (!buffs.BeginsWith("START DIPOLE")) {
477 Error("LoadData","Expected: \"START DIPOLE\", found \"%s\"\nStop\n",buffs.Data());
478 exit(1);
479 }
480 AliCheb3DCalc::ReadLine(buffs,stream); // nparam
481 int nparDip = buffs.Atoi();
482 //
483 for (int ip=0;ip<nparDip;ip++) {
484 AliCheb3D* cheb = new AliCheb3D();
485 cheb->LoadData(stream);
486 AddParamDip(cheb);
487 }
488 //
489 AliCheb3DCalc::ReadLine(buffs,stream);
490 if (!buffs.BeginsWith("END DIPOLE")) {
491 Error("LoadData","Expected \"END DIPOLE\", found \"%s\"\nStop\n",GetName(),buffs.Data());
492 exit(1);
493 }
494 //
495 AliCheb3DCalc::ReadLine(buffs,stream);
496 if (!buffs.BeginsWith("END") || !buffs.Contains(GetName())) {
497 Error("LoadData","Expected: \"END %s\", found \"%s\"\nStop\n",GetName(),buffs.Data());
498 exit(1);
499 }
500 //
501 // ---------------------------------------------------------------------------
502 fclose(stream);
503 BuildTableSol();
da7cd221 504 BuildTableDip();
1d18ebe0 505 BuildTableTPCInt();
506 //
da7cd221 507 printf("Loaded magnetic field \"%s\" from %s\n",GetName(),strf.Data());
508 //
509}
1d18ebe0 510
511//__________________________________________________________________________________________
512void AliMagWrapCheb::BuildTableSol()
513{
514 BuildTable(fNParamsSol,fParamsSol,
515 fNZSegSol,fNPSegSol,fNRSegSol,
516 fMinZSol,fMaxZSol,
517 &fSegZSol,&fSegPSol,&fSegRSol,
518 &fBegSegPSol,&fNSegPSol,
519 &fBegSegRSol,&fNSegRSol,
520 &fSegIDSol);
521}
522
523//__________________________________________________________________________________________
524void AliMagWrapCheb::BuildTableDip()
525{
526 BuildTable(fNParamsDip,fParamsDip,
527 fNZSegDip,fNYSegDip,fNXSegDip,
528 fMinZDip,fMaxZDip,
529 &fSegZDip,&fSegYDip,&fSegXDip,
530 &fBegSegYDip,&fNSegYDip,
531 &fBegSegXDip,&fNSegXDip,
532 &fSegIDDip);
533}
534
535//__________________________________________________________________________________________
536void AliMagWrapCheb::BuildTableTPCInt()
537{
538 BuildTable(fNParamsTPC,fParamsTPC,
539 fNZSegTPC,fNPSegTPC,fNRSegTPC,
540 fMinZTPC,fMaxZTPC,
541 &fSegZTPC,&fSegPTPC,&fSegRTPC,
542 &fBegSegPTPC,&fNSegPTPC,
543 &fBegSegRTPC,&fNSegRTPC,
544 &fSegIDTPC);
545}
546
da7cd221 547#endif
ff66b122 548
da7cd221 549//_______________________________________________
550#ifdef _INC_CREATION_ALICHEB3D_
551
552//__________________________________________________________________________________________
553AliMagWrapCheb::AliMagWrapCheb(const char* inputFile) :
1d18ebe0 554 fNParamsSol(0),fNZSegSol(0),fNPSegSol(0),fNRSegSol(0),
555 fSegZSol(0),fSegPSol(0),fSegRSol(0),
556 fBegSegPSol(0),fNSegPSol(0),fBegSegRSol(0),fNSegRSol(0),fSegIDSol(0),fMinZSol(1.e6),fMaxZSol(-1.e6),fParamsSol(0),fMaxRSol(0),
da7cd221 557//
1d18ebe0 558 fNParamsTPC(0),fNZSegTPC(0),fNPSegTPC(0),fNRSegTPC(0),
559 fSegZTPC(0),fSegPTPC(0),fSegRTPC(0),
560 fBegSegPTPC(0),fNSegPTPC(0),fBegSegRTPC(0),fNSegRTPC(0),fSegIDTPC(0),fMinZTPC(1.e6),fMaxZTPC(-1.e6),fParamsTPC(0),fMaxRTPC(0),
da7cd221 561//
1d18ebe0 562 fNParamsDip(0),fNZSegDip(0),fNYSegDip(0),fNXSegDip(0),
563 fSegZDip(0),fSegYDip(0),fSegXDip(0),
564 fBegSegYDip(0),fNSegYDip(0),fBegSegXDip(0),fNSegXDip(0),fSegIDDip(0),fMinZDip(1.e6),fMaxZDip(-1.e6),fParamsDip(0)
da7cd221 565//
566{
567 // construct from coeffs from the text file
568 LoadData(inputFile);
569}
570
571//__________________________________________________________________________________________
572void AliMagWrapCheb::AddParamSol(const AliCheb3D* param)
573{
574 // adds new parameterization piece for Sol
575 // NOTE: pieces must be added strictly in increasing R then increasing Z order
576 //
577 if (!fParamsSol) fParamsSol = new TObjArray();
578 fParamsSol->Add( (AliCheb3D*)param );
579 fNParamsSol++;
1d18ebe0 580 if (fMaxRSol<param->GetBoundMax(0)) fMaxRSol = param->GetBoundMax(0);
da7cd221 581 //
582}
583
584//__________________________________________________________________________________________
585void AliMagWrapCheb::AddParamTPCInt(const AliCheb3D* param)
586{
587 // adds new parameterization piece for TPCInt
588 // NOTE: pieces must be added strictly in increasing R then increasing Z order
589 //
1d18ebe0 590 if (!fParamsTPC) fParamsTPC = new TObjArray();
591 fParamsTPC->Add( (AliCheb3D*)param);
592 fNParamsTPC++;
593 if (fMaxRTPC<param->GetBoundMax(0)) fMaxRTPC = param->GetBoundMax(0);
da7cd221 594 //
595}
596
597//__________________________________________________________________________________________
598void AliMagWrapCheb::AddParamDip(const AliCheb3D* param)
a1dde210 599{
da7cd221 600 // adds new parameterization piece for Dipole
a1dde210 601 //
da7cd221 602 if (!fParamsDip) fParamsDip = new TObjArray();
603 fParamsDip->Add( (AliCheb3D*)param);
604 fNParamsDip++;
605 //
606}
607
608//__________________________________________________________________________________________
609void AliMagWrapCheb::ResetTPCInt()
610{
611 // clean TPC field integral (used for update)
1d18ebe0 612 if (fNParamsTPC) {
613 delete fParamsTPC; fParamsTPC = 0;
614 delete[] fSegZTPC; fSegZTPC = 0;
615 delete[] fSegPTPC; fSegPTPC = 0;
616 delete[] fSegRTPC; fSegRTPC = 0;
617 delete[] fBegSegPTPC; fBegSegPTPC = 0;
618 delete[] fNSegPTPC; fNSegPTPC = 0;
619 delete[] fBegSegRTPC; fBegSegRTPC = 0;
620 delete[] fNSegRTPC; fNSegRTPC = 0;
621 delete[] fSegIDTPC; fSegIDTPC = 0;
622 }
623 fNParamsTPC = fNZSegTPC = fNPSegTPC = fNRSegTPC = 0;
624 fMinZTPC = 1e6;
625 fMaxZTPC = -1e6;
626 fMaxRTPC = 0;
627 //
628}
629
630
631//__________________________________________________
632void AliMagWrapCheb::BuildTable(Int_t npar,TObjArray *parArr, Int_t &nZSeg, Int_t &nYSeg, Int_t &nXSeg,
633 Float_t &minZ,Float_t &maxZ,
634 Float_t **segZ,Float_t **segY,Float_t **segX,
635 Int_t **begSegY,Int_t **nSegY,
636 Int_t **begSegX,Int_t **nSegX,
637 Int_t **segID)
638{
639 // build lookup table for dipole
640 //
641 if (npar<1) return;
642 TArrayF segYArr,segXArr;
643 TArrayI begSegYDipArr,begSegXDipArr;
644 TArrayI nSegYDipArr,nSegXDipArr;
645 TArrayI segIDArr;
646 float *tmpSegZ,*tmpSegY,*tmpSegX;
647 //
648 // create segmentation in Z
649 nZSeg = SegmentDimension(&tmpSegZ, parArr, npar, 2, 1,-1, 1,-1, 1,-1) - 1;
650 nYSeg = 0;
651 nXSeg = 0;
652 //
653 // for each Z slice create segmentation in Y
654 begSegYDipArr.Set(nZSeg);
655 nSegYDipArr.Set(nZSeg);
656 float xyz[3];
657 for (int iz=0;iz<nZSeg;iz++) {
658 printf("\nZSegment#%d %+e : %+e\n",iz,tmpSegZ[iz],tmpSegZ[iz+1]);
659 int ny = SegmentDimension(&tmpSegY, parArr, npar, 1,
660 1,-1, 1,-1, tmpSegZ[iz],tmpSegZ[iz+1]) - 1;
661 segYArr.Set(ny + nYSeg);
662 for (int iy=0;iy<ny;iy++) segYArr[nYSeg+iy] = tmpSegY[iy];
663 begSegYDipArr[iz] = nYSeg;
664 nSegYDipArr[iz] = ny;
665 printf(" Found %d YSegments, to start from %d\n",ny, begSegYDipArr[iz]);
666 //
667 // for each slice in Z and Y create segmentation in X
668 begSegXDipArr.Set(nYSeg+ny);
669 nSegXDipArr.Set(nYSeg+ny);
670 xyz[2] = (tmpSegZ[iz]+tmpSegZ[iz+1])/2.; // mean Z of this segment
671 //
672 for (int iy=0;iy<ny;iy++) {
673 int isg = nYSeg+iy;
674 printf("\n YSegment#%d %+e : %+e\n",iy, tmpSegY[iy],tmpSegY[iy+1]);
675 int nx = SegmentDimension(&tmpSegX, parArr, npar, 0,
676 1,-1, tmpSegY[iy],tmpSegY[iy+1], tmpSegZ[iz],tmpSegZ[iz+1]) - 1;
677 //
678 segXArr.Set(nx + nXSeg);
679 for (int ix=0;ix<nx;ix++) segXArr[nXSeg+ix] = tmpSegX[ix];
680 begSegXDipArr[isg] = nXSeg;
681 nSegXDipArr[isg] = nx;
682 printf(" Found %d XSegments, to start from %d\n",nx, begSegXDipArr[isg]);
683 //
684 segIDArr.Set(nXSeg+nx);
685 //
686 // find corresponding params
687 xyz[1] = (tmpSegY[iy]+tmpSegY[iy+1])/2.; // mean Y of this segment
688 //
689 for (int ix=0;ix<nx;ix++) {
690 xyz[0] = (tmpSegX[ix]+tmpSegX[ix+1])/2.; // mean X of this segment
691 for (int ipar=0;ipar<npar;ipar++) {
692 AliCheb3D* cheb = (AliCheb3D*) parArr->At(ipar);
693 if (!cheb->IsInside(xyz)) continue;
694 segIDArr[nXSeg+ix] = ipar;
695 break;
696 }
697 }
698 nXSeg += nx;
699 //
700 delete[] tmpSegX;
701 }
702 delete[] tmpSegY;
703 nYSeg += ny;
704 }
705 //
706 minZ = tmpSegZ[0];
707 maxZ = tmpSegZ[nZSeg];
708 (*segZ) = new Float_t[nZSeg];
709 for (int i=nZSeg;i--;) (*segZ)[i] = tmpSegZ[i];
710 delete[] tmpSegZ;
711 //
712 (*segY) = new Float_t[nYSeg];
713 (*segX) = new Float_t[nXSeg];
714 (*begSegY) = new Int_t[nZSeg];
715 (*nSegY) = new Int_t[nZSeg];
716 (*begSegX) = new Int_t[nYSeg];
717 (*nSegX) = new Int_t[nYSeg];
718 (*segID) = new Int_t[nXSeg];
719 //
720 for (int i=nYSeg;i--;) (*segY)[i] = segYArr[i];
721 for (int i=nXSeg;i--;) (*segX)[i] = segXArr[i];
722 for (int i=nZSeg;i--;) {(*begSegY)[i] = begSegYDipArr[i]; (*nSegY)[i] = nSegYDipArr[i];}
723 for (int i=nYSeg;i--;) {(*begSegX)[i] = begSegXDipArr[i]; (*nSegX)[i] = nSegXDipArr[i];}
724 for (int i=nXSeg;i--;) {(*segID)[i] = segIDArr[i];}
da7cd221 725 //
726}
727
1d18ebe0 728/*
da7cd221 729//__________________________________________________
730void AliMagWrapCheb::BuildTableDip()
731{
732 // build lookup table for dipole
733 //
82d1e556 734 if (fNParamsDip<1) return;
da7cd221 735 TArrayF segY,segX;
736 TArrayI begSegYDip,begSegXDip;
737 TArrayI nsegYDip,nsegXDip;
738 TArrayI segID;
739 float *tmpSegZ,*tmpSegY,*tmpSegX;
740 //
741 // create segmentation in Z
1d18ebe0 742 fNZSegDip = SegmentDimension(&tmpSegZ, fParamsDip, fNParamsDip, 2, 1,-1, 1,-1, 1,-1) - 1;
da7cd221 743 fNYSegDip = 0;
744 fNXSegDip = 0;
745 //
746 // for each Z slice create segmentation in Y
747 begSegYDip.Set(fNZSegDip);
748 nsegYDip.Set(fNZSegDip);
749 float xyz[3];
750 for (int iz=0;iz<fNZSegDip;iz++) {
751 printf("\nZSegment#%d %+e : %+e\n",iz,tmpSegZ[iz],tmpSegZ[iz+1]);
1d18ebe0 752 int ny = SegmentDimension(&tmpSegY, fParamsDip, fNParamsDip, 1,
da7cd221 753 1,-1, 1,-1, tmpSegZ[iz],tmpSegZ[iz+1]) - 1;
754 segY.Set(ny + fNYSegDip);
755 for (int iy=0;iy<ny;iy++) segY[fNYSegDip+iy] = tmpSegY[iy];
756 begSegYDip[iz] = fNYSegDip;
757 nsegYDip[iz] = ny;
758 printf(" Found %d YSegments, to start from %d\n",ny, begSegYDip[iz]);
759 //
760 // for each slice in Z and Y create segmentation in X
761 begSegXDip.Set(fNYSegDip+ny);
762 nsegXDip.Set(fNYSegDip+ny);
763 xyz[2] = (tmpSegZ[iz]+tmpSegZ[iz+1])/2.; // mean Z of this segment
764 //
765 for (int iy=0;iy<ny;iy++) {
766 int isg = fNYSegDip+iy;
767 printf("\n YSegment#%d %+e : %+e\n",iy, tmpSegY[iy],tmpSegY[iy+1]);
1d18ebe0 768 int nx = SegmentDimension(&tmpSegX, fParamsDip, fNParamsDip, 0,
769 1,-1, tmpSegY[iy],tmpSegY[iy+1], tmpSegZ[iz],tmpSegZ[iz+1]) - 1;
da7cd221 770 //
771 segX.Set(nx + fNXSegDip);
772 for (int ix=0;ix<nx;ix++) segX[fNXSegDip+ix] = tmpSegX[ix];
773 begSegXDip[isg] = fNXSegDip;
774 nsegXDip[isg] = nx;
775 printf(" Found %d XSegments, to start from %d\n",nx, begSegXDip[isg]);
776 //
777 segID.Set(fNXSegDip+nx);
778 //
779 // find corresponding params
780 xyz[1] = (tmpSegY[iy]+tmpSegY[iy+1])/2.; // mean Y of this segment
781 //
782 for (int ix=0;ix<nx;ix++) {
783 xyz[0] = (tmpSegX[ix]+tmpSegX[ix+1])/2.; // mean X of this segment
784 for (int ipar=0;ipar<fNParamsDip;ipar++) {
785 AliCheb3D* cheb = (AliCheb3D*) fParamsDip->At(ipar);
786 if (!cheb->IsInside(xyz)) continue;
787 segID[fNXSegDip+ix] = ipar;
788 break;
95d9681f 789 }
da7cd221 790 }
791 fNXSegDip += nx;
792 //
793 delete[] tmpSegX;
5de97576 794 }
da7cd221 795 delete[] tmpSegY;
796 fNYSegDip += ny;
797 }
798 //
799 fMinZDip = tmpSegZ[0];
800 fMaxZDip = tmpSegZ[fNZSegDip];
801 fSegZDip = new Float_t[fNZSegDip];
802 for (int i=fNZSegDip;i--;) fSegZDip[i] = tmpSegZ[i];
803 delete[] tmpSegZ;
804 //
805 fSegYDip = new Float_t[fNYSegDip];
806 fSegXDip = new Float_t[fNXSegDip];
807 fBegSegYDip = new Int_t[fNZSegDip];
808 fNSegYDip = new Int_t[fNZSegDip];
809 fBegSegXDip = new Int_t[fNYSegDip];
810 fNSegXDip = new Int_t[fNYSegDip];
811 fSegIDDip = new Int_t[fNXSegDip];
812 //
813 for (int i=fNYSegDip;i--;) fSegYDip[i] = segY[i];
814 for (int i=fNXSegDip;i--;) fSegXDip[i] = segX[i];
815 for (int i=fNZSegDip;i--;) {fBegSegYDip[i] = begSegYDip[i]; fNSegYDip[i] = nsegYDip[i];}
816 for (int i=fNYSegDip;i--;) {fBegSegXDip[i] = begSegXDip[i]; fNSegXDip[i] = nsegXDip[i];}
817 for (int i=fNXSegDip;i--;) {fSegIDDip[i] = segID[i];}
818 //
a1dde210 819}
1d18ebe0 820*/
a1dde210 821
1d18ebe0 822//________________________________________________________________
da7cd221 823void AliMagWrapCheb::SaveData(const char* outfile) const
824{
825 // writes coefficients data to output text file
826 TString strf = outfile;
827 gSystem->ExpandPathName(strf);
828 FILE* stream = fopen(strf,"w+");
829 //
830 // Sol part ---------------------------------------------------------
831 fprintf(stream,"# Set of Chebyshev parameterizations for ALICE magnetic field\nSTART %s\n",GetName());
832 fprintf(stream,"START SOLENOID\n#Number of pieces\n%d\n",fNParamsSol);
833 for (int ip=0;ip<fNParamsSol;ip++) GetParamSol(ip)->SaveData(stream);
834 fprintf(stream,"#\nEND SOLENOID\n");
835 //
836 // TPCInt part ---------------------------------------------------------
837 fprintf(stream,"# Set of Chebyshev parameterizations for ALICE magnetic field\nSTART %s\n",GetName());
1d18ebe0 838 fprintf(stream,"START TPCINT\n#Number of pieces\n%d\n",fNParamsTPC);
839 for (int ip=0;ip<fNParamsTPC;ip++) GetParamTPCInt(ip)->SaveData(stream);
da7cd221 840 fprintf(stream,"#\nEND TPCINT\n");
841 //
842 // Dip part ---------------------------------------------------------
843 fprintf(stream,"START DIPOLE\n#Number of pieces\n%d\n",fNParamsDip);
844 for (int ip=0;ip<fNParamsDip;ip++) GetParamDip(ip)->SaveData(stream);
845 fprintf(stream,"#\nEND DIPOLE\n");
846 //
847 fprintf(stream,"#\nEND %s\n",GetName());
848 //
849 fclose(stream);
850 //
851}
852
1d18ebe0 853Int_t AliMagWrapCheb::SegmentDimension(float** seg,const TObjArray* par,int npar, int dim,
da7cd221 854 float xmn,float xmx,float ymn,float ymx,float zmn,float zmx)
855{
856 // find all boundaries in deimension dim for boxes in given region.
857 // if mn>mx for given projection the check is not done for it.
858 float *tmpC = new float[2*npar];
859 int *tmpInd = new int[2*npar];
860 int nseg0 = 0;
861 for (int ip=0;ip<npar;ip++) {
862 AliCheb3D* cheb = (AliCheb3D*) par->At(ip);
863 if (xmn<xmx && (cheb->GetBoundMin(0)>(xmx+xmn)/2 || cheb->GetBoundMax(0)<(xmn+xmx)/2)) continue;
864 if (ymn<ymx && (cheb->GetBoundMin(1)>(ymx+ymn)/2 || cheb->GetBoundMax(1)<(ymn+ymx)/2)) continue;
865 if (zmn<zmx && (cheb->GetBoundMin(2)>(zmx+zmn)/2 || cheb->GetBoundMax(2)<(zmn+zmx)/2)) continue;
866 //
867 tmpC[nseg0++] = cheb->GetBoundMin(dim);
868 tmpC[nseg0++] = cheb->GetBoundMax(dim);
869 }
870 // range Dim's boundaries in increasing order
871 TMath::Sort(nseg0,tmpC,tmpInd,kFALSE);
872 // count number of really different Z's
873 int nseg = 0;
874 float cprev = -1e6;
875 for (int ip=0;ip<nseg0;ip++) {
876 if (TMath::Abs(cprev-tmpC[ tmpInd[ip] ])>1e-4) {
877 cprev = tmpC[ tmpInd[ip] ];
878 nseg++;
879 }
880 else tmpInd[ip] = -1; // supress redundant Z
881 }
882 //
883 *seg = new float[nseg]; // create final Z segmenations
884 nseg = 0;
885 for (int ip=0;ip<nseg0;ip++) if (tmpInd[ip]>=0) (*seg)[nseg++] = tmpC[ tmpInd[ip] ];
886 //
887 delete[] tmpC;
888 delete[] tmpInd;
889 return nseg;
890}
891
892#endif
893