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The constructor will set the LHC Bfield convention bit
[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
db83d72f 284 //
e27dc75a 285 Bool_t reCheck = kFALSE;
286 while(1) {
287 int ysegBeg = fBegSegYDip[zid];
288 //
289 for (yid=0;yid<fNSegYDip[zid];yid++) if (xyz[1]<fSegYDip[ysegBeg+yid]) break;
290 if ( --yid < 0 ) yid = 0;
291 yid += ysegBeg;
292 //
293 int xsegBeg = fBegSegXDip[yid];
294 for (xid=0;xid<fNSegXDip[yid];xid++) if (xyz[0]<fSegXDip[xsegBeg+xid]) break;
295 //
296 if ( --xid < 0) xid = 0;
297 xid += xsegBeg;
298 //
299 // to make sure that due to the precision problems we did not pick the next Zbin
300 if (!reCheck && (xyz[2] - fSegZDip[zid] < 3.e-5) && zid &&
301 !GetParamDip(fSegIDDip[xid])->IsInside(xyz)) { // check the previous Z bin
302 zid--;
303 reCheck = kTRUE;
304 continue;
305 }
306 break;
307 }
db83d72f 308 return fSegIDDip[xid];
a1dde210 309}
310
1d18ebe0 311//__________________________________________________________________________________________________
312Int_t AliMagWrapCheb::FindSolSegment(const Double_t *rpz) const
313{
314 // find the segment containing point xyz. If it is outside find the closest segment
315 if (!fNParamsSol) return -1;
316 int rid,pid,zid = TMath::BinarySearch(fNZSegSol,fSegZSol,(Float_t)rpz[2]); // find zsegment
1d18ebe0 317 //
e27dc75a 318 Bool_t reCheck = kFALSE;
319 while(1) {
320 int psegBeg = fBegSegPSol[zid];
321 for (pid=0;pid<fNSegPSol[zid];pid++) if (rpz[1]<fSegPSol[psegBeg+pid]) break;
322 if ( --pid < 0 ) pid = 0;
323 pid += psegBeg;
324 //
325 int rsegBeg = fBegSegRSol[pid];
326 for (rid=0;rid<fNSegRSol[pid];rid++) if (rpz[0]<fSegRSol[rsegBeg+rid]) break;
327 if ( --rid < 0) rid = 0;
328 rid += rsegBeg;
329 //
330 // to make sure that due to the precision problems we did not pick the next Zbin
331 if (!reCheck && (rpz[2] - fSegZSol[zid] < 3.e-5) && zid &&
332 !GetParamSol(fSegIDSol[rid])->IsInside(rpz)) { // check the previous Z bin
333 zid--;
334 reCheck = kTRUE;
335 continue;
336 }
337 break;
338 }
1d18ebe0 339 return fSegIDSol[rid];
340}
341
342//__________________________________________________________________________________________________
343Int_t AliMagWrapCheb::FindTPCSegment(const Double_t *rpz) const
344{
345 // find the segment containing point xyz. If it is outside find the closest segment
346 if (!fNParamsTPC) return -1;
347 int rid,pid,zid = TMath::BinarySearch(fNZSegTPC,fSegZTPC,(Float_t)rpz[2]); // find zsegment
1d18ebe0 348 //
e27dc75a 349 Bool_t reCheck = kFALSE;
350 while(1) {
351 int psegBeg = fBegSegPTPC[zid];
352 //
353 for (pid=0;pid<fNSegPTPC[zid];pid++) if (rpz[1]<fSegPTPC[psegBeg+pid]) break;
354 if ( --pid < 0 ) pid = 0;
355 pid += psegBeg;
356 //
357 int rsegBeg = fBegSegRTPC[pid];
358 for (rid=0;rid<fNSegRTPC[pid];rid++) if (rpz[0]<fSegRTPC[rsegBeg+rid]) break;
359 if ( --rid < 0) rid = 0;
360 rid += rsegBeg;
361 //
362 // to make sure that due to the precision problems we did not pick the next Zbin
363 if (!reCheck && (rpz[2] - fSegZSol[zid] < 3.e-5) && zid &&
364 !GetParamSol(fSegIDSol[rid])->IsInside(rpz)) { // check the previous Z bin
365 zid--;
366 reCheck = kTRUE;
367 continue;
368 }
369 break;
370 }
1d18ebe0 371 return fSegIDTPC[rid];
372}
373
374
da7cd221 375//__________________________________________________________________________________________
db83d72f 376void AliMagWrapCheb::GetTPCInt(const Double_t *xyz, Double_t *b) const
a1dde210 377{
da7cd221 378 // compute TPC region field integral in cartesian coordinates.
379 // If point is outside of the parameterized region get it at closeset valid point
db83d72f 380 static Double_t rphiz[3];
da7cd221 381 //
382 // TPCInt region
383 // convert coordinates to cyl system
384 CartToCyl(xyz,rphiz);
385#ifndef _BRING_TO_BOUNDARY_
386 if ( (rphiz[2]>GetMaxZTPCInt()||rphiz[2]<GetMinZTPCInt()) ||
387 rphiz[0]>GetMaxRTPCInt()) {for (int i=3;i--;) b[i]=0; return;}
388#endif
389 //
390 GetTPCIntCyl(rphiz,b);
391 //
392 // convert field to cartesian system
393 CylToCartCylB(rphiz, b,b);
394 //
395}
396
397//__________________________________________________________________________________________
db83d72f 398void AliMagWrapCheb::FieldCylSol(const Double_t *rphiz, Double_t *b) const
da7cd221 399{
400 // compute Solenoid field in Cylindircal coordinates
401 // note: if the point is outside the volume get the field in closest parameterized point
1d18ebe0 402 int id = FindSolSegment(rphiz);
403 if (id<0) return;
404 AliCheb3D* par = GetParamSol(id);
405#ifndef _BRING_TO_BOUNDARY_ // exact matching to fitted volume is requested
406 if (!par->IsInside(rphiz)) return;
407#endif
408 par->Eval(rphiz,b);
409 return;
da7cd221 410 //
411}
412
413//__________________________________________________________________________________________
db83d72f 414Double_t AliMagWrapCheb::FieldCylSolBz(const Double_t *rphiz) const
da7cd221 415{
416 // compute Solenoid field in Cylindircal coordinates
417 // note: if the point is outside the volume get the field in closest parameterized point
1d18ebe0 418 int id = FindSolSegment(rphiz);
419 if (id<0) return 0.;
420 AliCheb3D* par = GetParamSol(id);
421#ifndef _BRING_TO_BOUNDARY_
422 return par->IsInside(rphiz) ? par->Eval(rphiz,2) : 0;
423#endif
424 return par->Eval(rphiz,2);
a1dde210 425 //
a1dde210 426}
427
da7cd221 428//__________________________________________________________________________________________
db83d72f 429void AliMagWrapCheb::GetTPCIntCyl(const Double_t *rphiz, Double_t *b) const
a1dde210 430{
da7cd221 431 // compute field integral in TPC region in Cylindircal coordinates
432 // note: the check for the point being inside the parameterized region is done outside
1d18ebe0 433 int id = FindTPCSegment(rphiz);
434 if (id<0) {
435 b[0] = b[1] = b[2] = 0;
436 return;
437 }
438 AliCheb3D* par = GetParamTPCInt(id);
439 if (par->IsInside(rphiz)) {par->Eval(rphiz,b); return;}
440 b[0] = b[1] = b[2] = 0;
441 return;
da7cd221 442 //
a1dde210 443}
444
da7cd221 445
da7cd221 446#ifdef _INC_CREATION_ALICHEB3D_
447//_______________________________________________
448void AliMagWrapCheb::LoadData(const char* inpfile)
449{
450 // read coefficients data from the text file
451 //
452 TString strf = inpfile;
453 gSystem->ExpandPathName(strf);
454 FILE* stream = fopen(strf,"r");
455 if (!stream) {
456 printf("Did not find input file %s\n",strf.Data());
457 return;
458 }
459 //
460 TString buffs;
461 AliCheb3DCalc::ReadLine(buffs,stream);
462 if (!buffs.BeginsWith("START")) {
463 Error("LoadData","Expected: \"START <name>\", found \"%s\"\nStop\n",buffs.Data());
464 exit(1);
465 }
466 if (buffs.First(' ')>0) SetName(buffs.Data()+buffs.First(' ')+1);
467 //
468 // Solenoid part -----------------------------------------------------------
469 AliCheb3DCalc::ReadLine(buffs,stream);
470 if (!buffs.BeginsWith("START SOLENOID")) {
471 Error("LoadData","Expected: \"START SOLENOID\", found \"%s\"\nStop\n",buffs.Data());
472 exit(1);
473 }
474 AliCheb3DCalc::ReadLine(buffs,stream); // nparam
475 int nparSol = buffs.Atoi();
476 //
477 for (int ip=0;ip<nparSol;ip++) {
478 AliCheb3D* cheb = new AliCheb3D();
479 cheb->LoadData(stream);
480 AddParamSol(cheb);
481 }
482 //
483 AliCheb3DCalc::ReadLine(buffs,stream);
484 if (!buffs.BeginsWith("END SOLENOID")) {
485 Error("LoadData","Expected \"END SOLENOID\", found \"%s\"\nStop\n",buffs.Data());
486 exit(1);
487 }
488 //
489 // TPCInt part -----------------------------------------------------------
490 AliCheb3DCalc::ReadLine(buffs,stream);
491 if (!buffs.BeginsWith("START TPCINT")) {
492 Error("LoadData","Expected: \"START TPCINT\", found \"%s\"\nStop\n",buffs.Data());
493 exit(1);
494 }
495 AliCheb3DCalc::ReadLine(buffs,stream); // nparam
496 int nparTPCInt = buffs.Atoi();
497 //
498 for (int ip=0;ip<nparTPCInt;ip++) {
499 AliCheb3D* cheb = new AliCheb3D();
500 cheb->LoadData(stream);
501 AddParamTPCInt(cheb);
502 }
503 //
504 AliCheb3DCalc::ReadLine(buffs,stream);
505 if (!buffs.BeginsWith("END TPCINT")) {
506 Error("LoadData","Expected \"END TPCINT\", found \"%s\"\nStop\n",buffs.Data());
507 exit(1);
508 }
509 //
510 // Dipole part -----------------------------------------------------------
511 AliCheb3DCalc::ReadLine(buffs,stream);
512 if (!buffs.BeginsWith("START DIPOLE")) {
513 Error("LoadData","Expected: \"START DIPOLE\", found \"%s\"\nStop\n",buffs.Data());
514 exit(1);
515 }
516 AliCheb3DCalc::ReadLine(buffs,stream); // nparam
517 int nparDip = buffs.Atoi();
518 //
519 for (int ip=0;ip<nparDip;ip++) {
520 AliCheb3D* cheb = new AliCheb3D();
521 cheb->LoadData(stream);
522 AddParamDip(cheb);
523 }
524 //
525 AliCheb3DCalc::ReadLine(buffs,stream);
526 if (!buffs.BeginsWith("END DIPOLE")) {
527 Error("LoadData","Expected \"END DIPOLE\", found \"%s\"\nStop\n",GetName(),buffs.Data());
528 exit(1);
529 }
530 //
531 AliCheb3DCalc::ReadLine(buffs,stream);
532 if (!buffs.BeginsWith("END") || !buffs.Contains(GetName())) {
533 Error("LoadData","Expected: \"END %s\", found \"%s\"\nStop\n",GetName(),buffs.Data());
534 exit(1);
535 }
536 //
537 // ---------------------------------------------------------------------------
538 fclose(stream);
539 BuildTableSol();
da7cd221 540 BuildTableDip();
1d18ebe0 541 BuildTableTPCInt();
542 //
da7cd221 543 printf("Loaded magnetic field \"%s\" from %s\n",GetName(),strf.Data());
544 //
545}
1d18ebe0 546
547//__________________________________________________________________________________________
548void AliMagWrapCheb::BuildTableSol()
549{
550 BuildTable(fNParamsSol,fParamsSol,
551 fNZSegSol,fNPSegSol,fNRSegSol,
552 fMinZSol,fMaxZSol,
553 &fSegZSol,&fSegPSol,&fSegRSol,
554 &fBegSegPSol,&fNSegPSol,
555 &fBegSegRSol,&fNSegRSol,
556 &fSegIDSol);
557}
558
559//__________________________________________________________________________________________
560void AliMagWrapCheb::BuildTableDip()
561{
562 BuildTable(fNParamsDip,fParamsDip,
563 fNZSegDip,fNYSegDip,fNXSegDip,
564 fMinZDip,fMaxZDip,
565 &fSegZDip,&fSegYDip,&fSegXDip,
566 &fBegSegYDip,&fNSegYDip,
567 &fBegSegXDip,&fNSegXDip,
568 &fSegIDDip);
569}
570
571//__________________________________________________________________________________________
572void AliMagWrapCheb::BuildTableTPCInt()
573{
574 BuildTable(fNParamsTPC,fParamsTPC,
575 fNZSegTPC,fNPSegTPC,fNRSegTPC,
576 fMinZTPC,fMaxZTPC,
577 &fSegZTPC,&fSegPTPC,&fSegRTPC,
578 &fBegSegPTPC,&fNSegPTPC,
579 &fBegSegRTPC,&fNSegRTPC,
580 &fSegIDTPC);
581}
582
da7cd221 583#endif
ff66b122 584
da7cd221 585//_______________________________________________
586#ifdef _INC_CREATION_ALICHEB3D_
587
588//__________________________________________________________________________________________
589AliMagWrapCheb::AliMagWrapCheb(const char* inputFile) :
1d18ebe0 590 fNParamsSol(0),fNZSegSol(0),fNPSegSol(0),fNRSegSol(0),
591 fSegZSol(0),fSegPSol(0),fSegRSol(0),
592 fBegSegPSol(0),fNSegPSol(0),fBegSegRSol(0),fNSegRSol(0),fSegIDSol(0),fMinZSol(1.e6),fMaxZSol(-1.e6),fParamsSol(0),fMaxRSol(0),
da7cd221 593//
1d18ebe0 594 fNParamsTPC(0),fNZSegTPC(0),fNPSegTPC(0),fNRSegTPC(0),
595 fSegZTPC(0),fSegPTPC(0),fSegRTPC(0),
596 fBegSegPTPC(0),fNSegPTPC(0),fBegSegRTPC(0),fNSegRTPC(0),fSegIDTPC(0),fMinZTPC(1.e6),fMaxZTPC(-1.e6),fParamsTPC(0),fMaxRTPC(0),
da7cd221 597//
1d18ebe0 598 fNParamsDip(0),fNZSegDip(0),fNYSegDip(0),fNXSegDip(0),
599 fSegZDip(0),fSegYDip(0),fSegXDip(0),
600 fBegSegYDip(0),fNSegYDip(0),fBegSegXDip(0),fNSegXDip(0),fSegIDDip(0),fMinZDip(1.e6),fMaxZDip(-1.e6),fParamsDip(0)
da7cd221 601//
602{
603 // construct from coeffs from the text file
604 LoadData(inputFile);
605}
606
607//__________________________________________________________________________________________
608void AliMagWrapCheb::AddParamSol(const AliCheb3D* param)
609{
610 // adds new parameterization piece for Sol
611 // NOTE: pieces must be added strictly in increasing R then increasing Z order
612 //
613 if (!fParamsSol) fParamsSol = new TObjArray();
614 fParamsSol->Add( (AliCheb3D*)param );
615 fNParamsSol++;
1d18ebe0 616 if (fMaxRSol<param->GetBoundMax(0)) fMaxRSol = param->GetBoundMax(0);
da7cd221 617 //
618}
619
620//__________________________________________________________________________________________
621void AliMagWrapCheb::AddParamTPCInt(const AliCheb3D* param)
622{
623 // adds new parameterization piece for TPCInt
624 // NOTE: pieces must be added strictly in increasing R then increasing Z order
625 //
1d18ebe0 626 if (!fParamsTPC) fParamsTPC = new TObjArray();
627 fParamsTPC->Add( (AliCheb3D*)param);
628 fNParamsTPC++;
629 if (fMaxRTPC<param->GetBoundMax(0)) fMaxRTPC = param->GetBoundMax(0);
da7cd221 630 //
631}
632
633//__________________________________________________________________________________________
634void AliMagWrapCheb::AddParamDip(const AliCheb3D* param)
a1dde210 635{
da7cd221 636 // adds new parameterization piece for Dipole
a1dde210 637 //
da7cd221 638 if (!fParamsDip) fParamsDip = new TObjArray();
639 fParamsDip->Add( (AliCheb3D*)param);
640 fNParamsDip++;
641 //
642}
643
644//__________________________________________________________________________________________
645void AliMagWrapCheb::ResetTPCInt()
646{
647 // clean TPC field integral (used for update)
1d18ebe0 648 if (fNParamsTPC) {
649 delete fParamsTPC; fParamsTPC = 0;
650 delete[] fSegZTPC; fSegZTPC = 0;
651 delete[] fSegPTPC; fSegPTPC = 0;
652 delete[] fSegRTPC; fSegRTPC = 0;
653 delete[] fBegSegPTPC; fBegSegPTPC = 0;
654 delete[] fNSegPTPC; fNSegPTPC = 0;
655 delete[] fBegSegRTPC; fBegSegRTPC = 0;
656 delete[] fNSegRTPC; fNSegRTPC = 0;
657 delete[] fSegIDTPC; fSegIDTPC = 0;
658 }
659 fNParamsTPC = fNZSegTPC = fNPSegTPC = fNRSegTPC = 0;
660 fMinZTPC = 1e6;
661 fMaxZTPC = -1e6;
662 fMaxRTPC = 0;
663 //
664}
665
666
667//__________________________________________________
668void AliMagWrapCheb::BuildTable(Int_t npar,TObjArray *parArr, Int_t &nZSeg, Int_t &nYSeg, Int_t &nXSeg,
669 Float_t &minZ,Float_t &maxZ,
670 Float_t **segZ,Float_t **segY,Float_t **segX,
671 Int_t **begSegY,Int_t **nSegY,
672 Int_t **begSegX,Int_t **nSegX,
673 Int_t **segID)
674{
675 // build lookup table for dipole
676 //
677 if (npar<1) return;
678 TArrayF segYArr,segXArr;
679 TArrayI begSegYDipArr,begSegXDipArr;
680 TArrayI nSegYDipArr,nSegXDipArr;
681 TArrayI segIDArr;
682 float *tmpSegZ,*tmpSegY,*tmpSegX;
683 //
684 // create segmentation in Z
685 nZSeg = SegmentDimension(&tmpSegZ, parArr, npar, 2, 1,-1, 1,-1, 1,-1) - 1;
686 nYSeg = 0;
687 nXSeg = 0;
688 //
689 // for each Z slice create segmentation in Y
690 begSegYDipArr.Set(nZSeg);
691 nSegYDipArr.Set(nZSeg);
692 float xyz[3];
693 for (int iz=0;iz<nZSeg;iz++) {
694 printf("\nZSegment#%d %+e : %+e\n",iz,tmpSegZ[iz],tmpSegZ[iz+1]);
695 int ny = SegmentDimension(&tmpSegY, parArr, npar, 1,
696 1,-1, 1,-1, tmpSegZ[iz],tmpSegZ[iz+1]) - 1;
697 segYArr.Set(ny + nYSeg);
698 for (int iy=0;iy<ny;iy++) segYArr[nYSeg+iy] = tmpSegY[iy];
699 begSegYDipArr[iz] = nYSeg;
700 nSegYDipArr[iz] = ny;
701 printf(" Found %d YSegments, to start from %d\n",ny, begSegYDipArr[iz]);
702 //
703 // for each slice in Z and Y create segmentation in X
704 begSegXDipArr.Set(nYSeg+ny);
705 nSegXDipArr.Set(nYSeg+ny);
706 xyz[2] = (tmpSegZ[iz]+tmpSegZ[iz+1])/2.; // mean Z of this segment
707 //
708 for (int iy=0;iy<ny;iy++) {
709 int isg = nYSeg+iy;
710 printf("\n YSegment#%d %+e : %+e\n",iy, tmpSegY[iy],tmpSegY[iy+1]);
711 int nx = SegmentDimension(&tmpSegX, parArr, npar, 0,
712 1,-1, tmpSegY[iy],tmpSegY[iy+1], tmpSegZ[iz],tmpSegZ[iz+1]) - 1;
713 //
714 segXArr.Set(nx + nXSeg);
715 for (int ix=0;ix<nx;ix++) segXArr[nXSeg+ix] = tmpSegX[ix];
716 begSegXDipArr[isg] = nXSeg;
717 nSegXDipArr[isg] = nx;
718 printf(" Found %d XSegments, to start from %d\n",nx, begSegXDipArr[isg]);
719 //
720 segIDArr.Set(nXSeg+nx);
721 //
722 // find corresponding params
723 xyz[1] = (tmpSegY[iy]+tmpSegY[iy+1])/2.; // mean Y of this segment
724 //
725 for (int ix=0;ix<nx;ix++) {
726 xyz[0] = (tmpSegX[ix]+tmpSegX[ix+1])/2.; // mean X of this segment
727 for (int ipar=0;ipar<npar;ipar++) {
728 AliCheb3D* cheb = (AliCheb3D*) parArr->At(ipar);
729 if (!cheb->IsInside(xyz)) continue;
730 segIDArr[nXSeg+ix] = ipar;
731 break;
732 }
733 }
734 nXSeg += nx;
735 //
736 delete[] tmpSegX;
737 }
738 delete[] tmpSegY;
739 nYSeg += ny;
740 }
741 //
742 minZ = tmpSegZ[0];
743 maxZ = tmpSegZ[nZSeg];
744 (*segZ) = new Float_t[nZSeg];
745 for (int i=nZSeg;i--;) (*segZ)[i] = tmpSegZ[i];
746 delete[] tmpSegZ;
747 //
748 (*segY) = new Float_t[nYSeg];
749 (*segX) = new Float_t[nXSeg];
750 (*begSegY) = new Int_t[nZSeg];
751 (*nSegY) = new Int_t[nZSeg];
752 (*begSegX) = new Int_t[nYSeg];
753 (*nSegX) = new Int_t[nYSeg];
754 (*segID) = new Int_t[nXSeg];
755 //
756 for (int i=nYSeg;i--;) (*segY)[i] = segYArr[i];
757 for (int i=nXSeg;i--;) (*segX)[i] = segXArr[i];
758 for (int i=nZSeg;i--;) {(*begSegY)[i] = begSegYDipArr[i]; (*nSegY)[i] = nSegYDipArr[i];}
759 for (int i=nYSeg;i--;) {(*begSegX)[i] = begSegXDipArr[i]; (*nSegX)[i] = nSegXDipArr[i];}
760 for (int i=nXSeg;i--;) {(*segID)[i] = segIDArr[i];}
da7cd221 761 //
762}
763
1d18ebe0 764/*
da7cd221 765//__________________________________________________
766void AliMagWrapCheb::BuildTableDip()
767{
768 // build lookup table for dipole
769 //
82d1e556 770 if (fNParamsDip<1) return;
da7cd221 771 TArrayF segY,segX;
772 TArrayI begSegYDip,begSegXDip;
773 TArrayI nsegYDip,nsegXDip;
774 TArrayI segID;
775 float *tmpSegZ,*tmpSegY,*tmpSegX;
776 //
777 // create segmentation in Z
1d18ebe0 778 fNZSegDip = SegmentDimension(&tmpSegZ, fParamsDip, fNParamsDip, 2, 1,-1, 1,-1, 1,-1) - 1;
da7cd221 779 fNYSegDip = 0;
780 fNXSegDip = 0;
781 //
782 // for each Z slice create segmentation in Y
783 begSegYDip.Set(fNZSegDip);
784 nsegYDip.Set(fNZSegDip);
785 float xyz[3];
786 for (int iz=0;iz<fNZSegDip;iz++) {
787 printf("\nZSegment#%d %+e : %+e\n",iz,tmpSegZ[iz],tmpSegZ[iz+1]);
1d18ebe0 788 int ny = SegmentDimension(&tmpSegY, fParamsDip, fNParamsDip, 1,
da7cd221 789 1,-1, 1,-1, tmpSegZ[iz],tmpSegZ[iz+1]) - 1;
790 segY.Set(ny + fNYSegDip);
791 for (int iy=0;iy<ny;iy++) segY[fNYSegDip+iy] = tmpSegY[iy];
792 begSegYDip[iz] = fNYSegDip;
793 nsegYDip[iz] = ny;
794 printf(" Found %d YSegments, to start from %d\n",ny, begSegYDip[iz]);
795 //
796 // for each slice in Z and Y create segmentation in X
797 begSegXDip.Set(fNYSegDip+ny);
798 nsegXDip.Set(fNYSegDip+ny);
799 xyz[2] = (tmpSegZ[iz]+tmpSegZ[iz+1])/2.; // mean Z of this segment
800 //
801 for (int iy=0;iy<ny;iy++) {
802 int isg = fNYSegDip+iy;
803 printf("\n YSegment#%d %+e : %+e\n",iy, tmpSegY[iy],tmpSegY[iy+1]);
1d18ebe0 804 int nx = SegmentDimension(&tmpSegX, fParamsDip, fNParamsDip, 0,
805 1,-1, tmpSegY[iy],tmpSegY[iy+1], tmpSegZ[iz],tmpSegZ[iz+1]) - 1;
da7cd221 806 //
807 segX.Set(nx + fNXSegDip);
808 for (int ix=0;ix<nx;ix++) segX[fNXSegDip+ix] = tmpSegX[ix];
809 begSegXDip[isg] = fNXSegDip;
810 nsegXDip[isg] = nx;
811 printf(" Found %d XSegments, to start from %d\n",nx, begSegXDip[isg]);
812 //
813 segID.Set(fNXSegDip+nx);
814 //
815 // find corresponding params
816 xyz[1] = (tmpSegY[iy]+tmpSegY[iy+1])/2.; // mean Y of this segment
817 //
818 for (int ix=0;ix<nx;ix++) {
819 xyz[0] = (tmpSegX[ix]+tmpSegX[ix+1])/2.; // mean X of this segment
820 for (int ipar=0;ipar<fNParamsDip;ipar++) {
821 AliCheb3D* cheb = (AliCheb3D*) fParamsDip->At(ipar);
822 if (!cheb->IsInside(xyz)) continue;
823 segID[fNXSegDip+ix] = ipar;
824 break;
95d9681f 825 }
da7cd221 826 }
827 fNXSegDip += nx;
828 //
829 delete[] tmpSegX;
5de97576 830 }
da7cd221 831 delete[] tmpSegY;
832 fNYSegDip += ny;
833 }
834 //
835 fMinZDip = tmpSegZ[0];
836 fMaxZDip = tmpSegZ[fNZSegDip];
837 fSegZDip = new Float_t[fNZSegDip];
838 for (int i=fNZSegDip;i--;) fSegZDip[i] = tmpSegZ[i];
839 delete[] tmpSegZ;
840 //
841 fSegYDip = new Float_t[fNYSegDip];
842 fSegXDip = new Float_t[fNXSegDip];
843 fBegSegYDip = new Int_t[fNZSegDip];
844 fNSegYDip = new Int_t[fNZSegDip];
845 fBegSegXDip = new Int_t[fNYSegDip];
846 fNSegXDip = new Int_t[fNYSegDip];
847 fSegIDDip = new Int_t[fNXSegDip];
848 //
849 for (int i=fNYSegDip;i--;) fSegYDip[i] = segY[i];
850 for (int i=fNXSegDip;i--;) fSegXDip[i] = segX[i];
851 for (int i=fNZSegDip;i--;) {fBegSegYDip[i] = begSegYDip[i]; fNSegYDip[i] = nsegYDip[i];}
852 for (int i=fNYSegDip;i--;) {fBegSegXDip[i] = begSegXDip[i]; fNSegXDip[i] = nsegXDip[i];}
853 for (int i=fNXSegDip;i--;) {fSegIDDip[i] = segID[i];}
854 //
a1dde210 855}
1d18ebe0 856*/
a1dde210 857
1d18ebe0 858//________________________________________________________________
da7cd221 859void AliMagWrapCheb::SaveData(const char* outfile) const
860{
861 // writes coefficients data to output text file
862 TString strf = outfile;
863 gSystem->ExpandPathName(strf);
864 FILE* stream = fopen(strf,"w+");
865 //
866 // Sol part ---------------------------------------------------------
867 fprintf(stream,"# Set of Chebyshev parameterizations for ALICE magnetic field\nSTART %s\n",GetName());
868 fprintf(stream,"START SOLENOID\n#Number of pieces\n%d\n",fNParamsSol);
869 for (int ip=0;ip<fNParamsSol;ip++) GetParamSol(ip)->SaveData(stream);
870 fprintf(stream,"#\nEND SOLENOID\n");
871 //
872 // TPCInt part ---------------------------------------------------------
873 fprintf(stream,"# Set of Chebyshev parameterizations for ALICE magnetic field\nSTART %s\n",GetName());
1d18ebe0 874 fprintf(stream,"START TPCINT\n#Number of pieces\n%d\n",fNParamsTPC);
875 for (int ip=0;ip<fNParamsTPC;ip++) GetParamTPCInt(ip)->SaveData(stream);
da7cd221 876 fprintf(stream,"#\nEND TPCINT\n");
877 //
878 // Dip part ---------------------------------------------------------
879 fprintf(stream,"START DIPOLE\n#Number of pieces\n%d\n",fNParamsDip);
880 for (int ip=0;ip<fNParamsDip;ip++) GetParamDip(ip)->SaveData(stream);
881 fprintf(stream,"#\nEND DIPOLE\n");
882 //
883 fprintf(stream,"#\nEND %s\n",GetName());
884 //
885 fclose(stream);
886 //
887}
888
1d18ebe0 889Int_t AliMagWrapCheb::SegmentDimension(float** seg,const TObjArray* par,int npar, int dim,
da7cd221 890 float xmn,float xmx,float ymn,float ymx,float zmn,float zmx)
891{
892 // find all boundaries in deimension dim for boxes in given region.
893 // if mn>mx for given projection the check is not done for it.
894 float *tmpC = new float[2*npar];
895 int *tmpInd = new int[2*npar];
896 int nseg0 = 0;
897 for (int ip=0;ip<npar;ip++) {
898 AliCheb3D* cheb = (AliCheb3D*) par->At(ip);
899 if (xmn<xmx && (cheb->GetBoundMin(0)>(xmx+xmn)/2 || cheb->GetBoundMax(0)<(xmn+xmx)/2)) continue;
900 if (ymn<ymx && (cheb->GetBoundMin(1)>(ymx+ymn)/2 || cheb->GetBoundMax(1)<(ymn+ymx)/2)) continue;
901 if (zmn<zmx && (cheb->GetBoundMin(2)>(zmx+zmn)/2 || cheb->GetBoundMax(2)<(zmn+zmx)/2)) continue;
902 //
903 tmpC[nseg0++] = cheb->GetBoundMin(dim);
904 tmpC[nseg0++] = cheb->GetBoundMax(dim);
905 }
906 // range Dim's boundaries in increasing order
907 TMath::Sort(nseg0,tmpC,tmpInd,kFALSE);
908 // count number of really different Z's
909 int nseg = 0;
910 float cprev = -1e6;
911 for (int ip=0;ip<nseg0;ip++) {
912 if (TMath::Abs(cprev-tmpC[ tmpInd[ip] ])>1e-4) {
913 cprev = tmpC[ tmpInd[ip] ];
914 nseg++;
915 }
916 else tmpInd[ip] = -1; // supress redundant Z
917 }
918 //
919 *seg = new float[nseg]; // create final Z segmenations
920 nseg = 0;
921 for (int ip=0;ip<nseg0;ip++) if (tmpInd[ip]>=0) (*seg)[nseg++] = tmpC[ tmpInd[ip] ];
922 //
923 delete[] tmpC;
924 delete[] tmpInd;
925 return nseg;
926}
927
928#endif
929