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5406439e | 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 | **************************************************************************/ | |
0eea9d4d | 15 | |
16 | #include "AliMagFCheb.h" | |
5406439e | 17 | #include <TSystem.h> |
0eea9d4d | 18 | |
19 | ClassImp(AliMagFCheb) | |
20 | ||
0eea9d4d | 21 | //__________________________________________________________________________________________ |
d28e407c | 22 | AliMagFCheb::AliMagFCheb() : |
23 | fNParamsSol(0), | |
24 | fNSegZSol(0), | |
25 | fNParamsTPCInt(0), | |
26 | fNSegZTPCInt(0), | |
27 | fNParamsDip(0), | |
28 | // | |
29 | fNZSegDip(0), | |
30 | fNYSegDip(0), | |
31 | fNXSegDip(0), | |
32 | // | |
33 | fSegZSol(0), | |
34 | fSegRSol(0), | |
35 | // | |
36 | fSegZTPCInt(0), | |
37 | fSegRTPCInt(0), | |
38 | // | |
39 | fSegZDip(0), | |
40 | fSegYDip(0), | |
41 | fSegXDip(0), | |
42 | // | |
43 | fNSegRSol(0), | |
44 | fSegZIdSol(0), | |
45 | // | |
46 | fNSegRTPCInt(0), | |
47 | fSegZIdTPCInt(0), | |
48 | // | |
49 | fBegSegYDip(0), | |
50 | fNSegYDip(0), | |
51 | fBegSegXDip(0), | |
52 | fNSegXDip(0), | |
53 | fSegIDDip(0), | |
54 | // | |
55 | fMinZSol(1e6), | |
56 | fMaxZSol(-1e6), | |
57 | fMaxRSol(-1e6), | |
58 | // | |
59 | fMinZDip(1e6), | |
60 | fMaxZDip(-1e6), | |
61 | // | |
62 | fMinZTPCInt(1e6), | |
63 | fMaxZTPCInt(-1e6), | |
64 | fMaxRTPCInt(-1e6), | |
65 | // | |
66 | fParamsSol(0), | |
67 | fParamsDip(0), | |
68 | fParamsTPCInt(0) | |
69 | // | |
5406439e | 70 | { |
71 | // default constructor | |
72 | } | |
0bc7b414 | 73 | |
d28e407c | 74 | //__________________________________________________________________________________________ |
75 | AliMagFCheb::AliMagFCheb(const AliMagFCheb& src) : | |
76 | TNamed(src), | |
77 | fNParamsSol(0), | |
78 | fNSegZSol(0), | |
79 | fNParamsTPCInt(0), | |
80 | fNSegZTPCInt(0), | |
81 | fNParamsDip(0), | |
82 | // | |
83 | fNZSegDip(0), | |
84 | fNYSegDip(0), | |
85 | fNXSegDip(0), | |
86 | // | |
87 | fSegZSol(0), | |
88 | fSegRSol(0), | |
89 | // | |
90 | fSegZTPCInt(0), | |
91 | fSegRTPCInt(0), | |
92 | // | |
93 | fSegZDip(0), | |
94 | fSegYDip(0), | |
95 | fSegXDip(0), | |
96 | // | |
97 | fNSegRSol(0), | |
98 | fSegZIdSol(0), | |
99 | // | |
100 | fNSegRTPCInt(0), | |
101 | fSegZIdTPCInt(0), | |
102 | // | |
103 | fBegSegYDip(0), | |
104 | fNSegYDip(0), | |
105 | fBegSegXDip(0), | |
106 | fNSegXDip(0), | |
107 | fSegIDDip(0), | |
108 | // | |
109 | fMinZSol(1e6), | |
110 | fMaxZSol(-1e6), | |
111 | fMaxRSol(-1e6), | |
112 | // | |
113 | fMinZDip(1e6), | |
114 | fMaxZDip(-1e6), | |
115 | // | |
116 | fMinZTPCInt(1e6), | |
117 | fMaxZTPCInt(-1e6), | |
118 | fMaxRTPCInt(-1e6), | |
119 | // | |
120 | fParamsSol(0), | |
121 | fParamsDip(0), | |
122 | fParamsTPCInt(0) | |
0eea9d4d | 123 | { |
5406439e | 124 | // copy constructor |
d28e407c | 125 | CopyFrom(src); |
0eea9d4d | 126 | } |
127 | ||
c437b1a5 | 128 | //__________________________________________________________________________________________ |
d28e407c | 129 | void AliMagFCheb::CopyFrom(const AliMagFCheb& src) |
130 | { | |
5406439e | 131 | // copy method |
d28e407c | 132 | Clear(); |
133 | SetName(src.GetName()); | |
134 | SetTitle(src.GetTitle()); | |
135 | fNParamsSol = src.fNParamsSol; | |
136 | fNSegZSol = src.fNSegZSol; | |
137 | fNParamsTPCInt = src.fNParamsTPCInt; | |
138 | fNSegZTPCInt = src.fNSegZTPCInt; | |
139 | fNParamsDip = src.fNParamsDip; | |
140 | // | |
141 | fNZSegDip = src.fNZSegDip; | |
142 | fNYSegDip = src.fNYSegDip; | |
143 | fNXSegDip = src.fNXSegDip; | |
144 | // | |
145 | fMinZSol = src.fMinZSol; | |
146 | fMaxZSol = src.fMaxZSol; | |
147 | fMaxRSol = src.fMaxRSol; | |
148 | // | |
149 | fMinZDip = src.fMinZDip; | |
150 | fMaxZDip = src.fMaxZDip; | |
151 | // | |
152 | fMinZTPCInt = src.fMinZTPCInt; | |
153 | fMaxZTPCInt = src.fMaxZTPCInt; | |
154 | fMaxRTPCInt = src.fMaxRTPCInt; | |
155 | // | |
156 | if (src.fNParamsSol) { | |
157 | memcpy(fSegZSol = new Float_t[fNSegZSol], src.fSegZSol, sizeof(Float_t)*fNSegZSol); | |
158 | memcpy(fSegRSol = new Float_t[fNParamsSol], src.fSegRSol, sizeof(Float_t)*fNParamsSol); | |
159 | memcpy(fNSegRSol = new Int_t[fNSegZSol], src.fNSegRSol, sizeof(Int_t)*fNSegZSol); | |
160 | memcpy(fSegZIdSol= new Int_t[fNSegZSol], src.fSegZIdSol, sizeof(Int_t)*fNSegZSol); | |
161 | fParamsSol = new TObjArray(fNParamsSol); | |
162 | for (int i=0;i<fNParamsSol;i++) fParamsSol->AddAtAndExpand(new AliCheb3D(*src.GetParamSol(i)),i); | |
c437b1a5 | 163 | } |
d28e407c | 164 | // |
165 | if (src.fNParamsDip) { | |
166 | memcpy(fSegZDip = new Float_t[fNZSegDip], src.fSegZDip, sizeof(Float_t)*fNZSegDip); | |
167 | memcpy(fSegYDip = new Float_t[fNYSegDip], src.fSegYDip, sizeof(Float_t)*fNYSegDip); | |
168 | memcpy(fSegXDip = new Float_t[fNXSegDip], src.fSegZDip, sizeof(Float_t)*fNXSegDip); | |
169 | memcpy(fBegSegYDip= new Int_t[fNZSegDip], src.fBegSegYDip, sizeof(Int_t)*fNZSegDip); | |
170 | memcpy(fNSegYDip = new Int_t[fNZSegDip], src.fNSegYDip, sizeof(Int_t)*fNZSegDip); | |
171 | memcpy(fBegSegXDip= new Int_t[fNYSegDip], src.fBegSegXDip, sizeof(Int_t)*fNYSegDip); | |
172 | memcpy(fNSegXDip = new Int_t[fNYSegDip], src.fNSegXDip, sizeof(Int_t)*fNYSegDip); | |
173 | memcpy(fSegIDDip = new Int_t[fNXSegDip], src.fSegIDDip, sizeof(Int_t)*fNXSegDip); | |
174 | fParamsDip = new TObjArray(fNParamsDip); | |
175 | for (int i=0;i<fNParamsDip;i++) fParamsDip->AddAtAndExpand(new AliCheb3D(*src.GetParamDip(i)),i); | |
c437b1a5 | 176 | } |
d28e407c | 177 | // |
178 | if (src.fNParamsTPCInt) { | |
179 | memcpy(fSegZTPCInt = new Float_t[fNSegZTPCInt], src.fSegZTPCInt, sizeof(Float_t)*fNSegZTPCInt); | |
180 | memcpy(fSegRTPCInt = new Float_t[fNParamsTPCInt], src.fSegRTPCInt, sizeof(Float_t)*fNParamsTPCInt); | |
181 | memcpy(fNSegRTPCInt = new Int_t[fNSegZTPCInt], src.fNSegRTPCInt, sizeof(Int_t)*fNSegZTPCInt); | |
182 | memcpy(fSegZIdTPCInt= new Int_t[fNSegZTPCInt], src.fSegZIdTPCInt, sizeof(Int_t)*fNSegZTPCInt); | |
183 | fParamsTPCInt = new TObjArray(fNParamsTPCInt); | |
184 | for (int i=0;i<fNParamsTPCInt;i++) fParamsTPCInt->AddAtAndExpand(new AliCheb3D(*src.GetParamTPCInt(i)),i); | |
c437b1a5 | 185 | } |
0bc7b414 | 186 | // |
0bc7b414 | 187 | } |
188 | ||
d28e407c | 189 | //__________________________________________________________________________________________ |
c437b1a5 | 190 | AliMagFCheb& AliMagFCheb::operator=(const AliMagFCheb& rhs) |
0bc7b414 | 191 | { |
5406439e | 192 | // assignment |
d28e407c | 193 | if (this != &rhs) { |
194 | Clear(); | |
195 | CopyFrom(rhs); | |
196 | } | |
197 | return *this; | |
198 | // | |
0bc7b414 | 199 | } |
200 | ||
0eea9d4d | 201 | //__________________________________________________________________________________________ |
5406439e | 202 | void AliMagFCheb::Clear(const Option_t *) |
0eea9d4d | 203 | { |
5406439e | 204 | // clear all dynamic parts |
0eea9d4d | 205 | if (fNParamsSol) { |
d28e407c | 206 | delete fParamsSol; |
0eea9d4d | 207 | delete[] fSegZSol; |
208 | delete[] fSegRSol; | |
209 | delete[] fNSegRSol; | |
210 | delete[] fSegZIdSol; | |
211 | } | |
212 | // | |
d28e407c | 213 | if (fNParamsTPCInt) { |
214 | delete fParamsTPCInt; | |
215 | delete[] fSegZTPCInt; | |
216 | delete[] fSegRTPCInt; | |
217 | delete[] fNSegRTPCInt; | |
218 | delete[] fSegZIdTPCInt; | |
219 | } | |
220 | // | |
0eea9d4d | 221 | if (fNParamsDip) { |
d28e407c | 222 | delete fParamsDip; |
223 | delete[] fSegZDip; | |
224 | delete[] fSegYDip; | |
225 | delete[] fSegXDip; | |
226 | delete[] fBegSegYDip; | |
227 | delete[] fNSegYDip; | |
228 | delete[] fBegSegXDip; | |
229 | delete[] fNSegXDip; | |
230 | delete[] fSegIDDip; | |
0eea9d4d | 231 | } |
d28e407c | 232 | fNParamsSol = fNParamsTPCInt = fNParamsDip = fNZSegDip = fNYSegDip = fNXSegDip = 0; |
233 | fNSegZSol = fNSegZTPCInt = 0; | |
234 | fMinZSol = fMinZDip = fMinZTPCInt = 1e6; | |
235 | fMaxZSol = fMaxZDip = fMaxZTPCInt = fMaxRSol = fMaxRTPCInt = -1e6; | |
236 | // | |
0eea9d4d | 237 | } |
238 | ||
239 | //__________________________________________________________________________________________ | |
d28e407c | 240 | void AliMagFCheb::Field(Float_t *xyz, Float_t *b) const |
0eea9d4d | 241 | { |
d28e407c | 242 | // compute field in cartesian coordinates. If point is outside of the parameterized region |
243 | // get it at closest valid point | |
244 | static float rphiz[3]; | |
245 | // | |
246 | #ifndef _BRING_TO_BOUNDARY_ // exact matching to fitted volume is requested | |
247 | if ( !(xyz[2]>=GetMinZSol()&&xyz[2]<=GetMaxZSol()) && | |
248 | !(xyz[2]>=GetMinZDip()&&xyz[2]<=GetMaxZDip()) ) {for (int i=3;i--;) b[i]=0; return;} | |
249 | #endif | |
250 | // | |
251 | if (xyz[2]<fMaxZDip) { // dipole part? | |
252 | #ifndef _BRING_TO_BOUNDARY_ | |
253 | AliCheb3D* par = GetParamDip(FindDipSegment(xyz)); | |
254 | if (par->IsInside(xyz)) {par->Eval(xyz,b); return;} | |
255 | for (int i=3;i--;) b[i]=0; return; | |
256 | #else | |
257 | GetParamDip(FindDipSegment(xyz))->Eval(xyz,b); return; | |
258 | #endif | |
259 | } | |
260 | // | |
261 | // Sol region: convert coordinates to cyl system | |
262 | CartToCyl(xyz,rphiz); | |
263 | #ifndef _BRING_TO_BOUNDARY_ | |
264 | if (rphiz[0]>GetMaxRSol()) {for (int i=3;i--;) b[i]=0; return;} | |
265 | #endif | |
266 | // | |
267 | FieldCylSol(rphiz,b); | |
268 | // | |
269 | // convert field to cartesian system | |
270 | CylToCartCylB(rphiz, b,b); | |
271 | // | |
272 | } | |
273 | ||
274 | //__________________________________________________________________________________________ | |
275 | void AliMagFCheb::GetTPCInt(Float_t *xyz, Float_t *b) const | |
276 | { | |
277 | // compute TPC region field integral in cartesian coordinates. | |
278 | // If point is outside of the parameterized region get it at closeset valid point | |
279 | static float rphiz[3]; | |
280 | // | |
281 | // TPCInt region | |
282 | // convert coordinates to cyl system | |
283 | CartToCyl(xyz,rphiz); | |
284 | #ifndef _BRING_TO_BOUNDARY_ | |
285 | if ( (rphiz[2]>GetMaxZTPCInt()||rphiz[2]<GetMinZTPCInt()) || | |
286 | rphiz[0]>GetMaxRTPCInt()) {for (int i=3;i--;) b[i]=0; return;} | |
287 | #endif | |
288 | // | |
289 | GetTPCIntCyl(rphiz,b); | |
290 | // | |
291 | // convert field to cartesian system | |
292 | CylToCartCylB(rphiz, b,b); | |
293 | // | |
294 | } | |
295 | ||
296 | //__________________________________________________________________________________________ | |
5406439e | 297 | void AliMagFCheb::FieldCylSol(const Float_t *rphiz, Float_t *b) const |
d28e407c | 298 | { |
299 | // compute Solenoid field in Cylindircal coordinates | |
300 | // note: if the point is outside the volume get the field in closest parameterized point | |
5406439e | 301 | const float &r = rphiz[0]; |
302 | const float &z = rphiz[2]; | |
d28e407c | 303 | int SolZId = 0; |
4bf5ea44 | 304 | while (z>fSegZSol[SolZId] && SolZId<fNSegZSol-1) ++SolZId; // find Z segment |
d28e407c | 305 | int SolRId = fSegZIdSol[SolZId]; // first R segment for this Z |
306 | int SolRMax = SolRId + fNSegRSol[SolZId]; | |
4bf5ea44 | 307 | while (r>fSegRSol[SolRId] && SolRId<SolRMax-1) ++SolRId; // find R segment |
d28e407c | 308 | GetParamSol( SolRId )->Eval(rphiz,b); |
309 | // | |
310 | } | |
311 | ||
312 | //__________________________________________________________________________________________ | |
313 | void AliMagFCheb::GetTPCIntCyl(Float_t *rphiz, Float_t *b) const | |
314 | { | |
315 | // compute field integral in TPC region in Cylindircal coordinates | |
316 | // note: the check for the point being inside the parameterized region is done outside | |
5406439e | 317 | const float &r = rphiz[0]; |
318 | const float &z = rphiz[2]; | |
319 | int tpcIntZId = 0; | |
320 | while (z>fSegZTPCInt[tpcIntZId] && tpcIntZId<fNSegZTPCInt) ++tpcIntZId; // find Z segment | |
321 | int tpcIntRId = fSegZIdTPCInt[tpcIntZId]; // first R segment for this Z | |
322 | int tpcIntRIdMax = tpcIntRId + fNSegRTPCInt[tpcIntZId]; | |
323 | while (r>fSegRTPCInt[tpcIntRId] && tpcIntRId<tpcIntRIdMax) ++tpcIntRId; // find R segment | |
324 | GetParamTPCInt( tpcIntRId )->Eval(rphiz,b); | |
d28e407c | 325 | // |
326 | } | |
327 | ||
328 | ||
329 | //__________________________________________________________________________________________ | |
330 | void AliMagFCheb::Print(Option_t *) const | |
331 | { | |
5406439e | 332 | // print info |
d28e407c | 333 | printf("Alice magnetic field parameterized by Chebyshev polynomials\n"); |
334 | printf("Segmentation for Solenoid (%+.2f<Z<%+.2f cm | R<%.2f cm)\n",fMinZSol,fMaxZSol,fMaxRSol); | |
335 | // | |
336 | if (fParamsSol) fParamsSol->Print(); | |
337 | /* | |
338 | for (int iz=0;iz<fNSegZSol;iz++) { | |
339 | AliCheb3D* param = GetParamSol( fSegZIdSol[iz] ); | |
340 | printf("*** Z Segment %2d (%+7.2f<Z<%+7.2f)\t***\n",iz,param->GetBoundMin(2),param->GetBoundMax(2)); | |
341 | for (int ir=0;ir<fNSegRSol[iz];ir++) { | |
342 | param = GetParamSol( fSegZIdSol[iz]+ir ); | |
343 | printf(" R Segment %2d (%+7.2f<R<%+7.2f, Precision: %.1e) (ID=%2d)\n",ir, param->GetBoundMin(0), | |
344 | param->GetBoundMax(0),param->GetPrecision(),fSegZIdSol[iz]+ir); | |
345 | } | |
346 | } | |
347 | */ | |
348 | // | |
349 | printf("Segmentation for TPC field integral (%+.2f<Z<%+.2f cm | R<%.2f cm)\n",fMinZTPCInt,fMaxZTPCInt,fMaxRTPCInt); | |
350 | // | |
351 | if (fParamsTPCInt) fParamsTPCInt->Print(); | |
352 | /* | |
353 | for (int iz=0;iz<fNSegZTPCInt;iz++) { | |
354 | AliCheb3D* param = GetParamTPCInt( fSegZIdTPCInt[iz] ); | |
355 | printf("*** Z Segment %2d (%+7.2f<Z<%+7.2f)\t***\n",iz,param->GetBoundMin(2),param->GetBoundMax(2)); | |
356 | for (int ir=0;ir<fNSegRTPCInt[iz];ir++) { | |
357 | param = GetParamTPCInt( fSegZIdTPCInt[iz]+ir ); | |
358 | printf(" R Segment %2d (%+7.2f<R<%+7.2f, Precision: %.1e) (ID=%2d)\n",ir, param->GetBoundMin(0), | |
359 | param->GetBoundMax(0),param->GetPrecision(),fSegZIdTPCInt[iz]+ir); | |
360 | } | |
361 | } | |
362 | */ | |
363 | // | |
364 | printf("Segmentation for Dipole (%+.2f<Z<%+.2f cm)\n",fMinZDip,fMaxZDip); | |
365 | if (fParamsDip) fParamsDip->Print(); | |
366 | // | |
367 | ||
368 | ||
369 | } | |
1cf34ee8 | 370 | #ifdef _INC_CREATION_ALICHEB3D_ |
d28e407c | 371 | //_______________________________________________ |
372 | void AliMagFCheb::LoadData(const char* inpfile) | |
373 | { | |
374 | // read coefficients data from the text file | |
375 | // | |
376 | TString strf = inpfile; | |
377 | gSystem->ExpandPathName(strf); | |
378 | FILE* stream = fopen(strf,"r"); | |
379 | if (!stream) { | |
380 | printf("Did not find input file %s\n",strf.Data()); | |
381 | return; | |
382 | } | |
383 | // | |
384 | TString buffs; | |
385 | AliCheb3DCalc::ReadLine(buffs,stream); | |
386 | if (!buffs.BeginsWith("START")) { | |
387 | Error("LoadData","Expected: \"START <name>\", found \"%s\"\nStop\n",buffs.Data()); | |
388 | exit(1); | |
389 | } | |
390 | if (buffs.First(' ')>0) SetName(buffs.Data()+buffs.First(' ')+1); | |
391 | // | |
392 | // Solenoid part ----------------------------------------------------------- | |
393 | AliCheb3DCalc::ReadLine(buffs,stream); | |
394 | if (!buffs.BeginsWith("START SOLENOID")) { | |
395 | Error("LoadData","Expected: \"START SOLENOID\", found \"%s\"\nStop\n",buffs.Data()); | |
396 | exit(1); | |
397 | } | |
398 | AliCheb3DCalc::ReadLine(buffs,stream); // nparam | |
399 | int nparSol = buffs.Atoi(); | |
400 | // | |
401 | for (int ip=0;ip<nparSol;ip++) { | |
402 | AliCheb3D* cheb = new AliCheb3D(); | |
403 | cheb->LoadData(stream); | |
404 | AddParamSol(cheb); | |
405 | } | |
406 | // | |
407 | AliCheb3DCalc::ReadLine(buffs,stream); | |
408 | if (!buffs.BeginsWith("END SOLENOID")) { | |
409 | Error("LoadData","Expected \"END SOLENOID\", found \"%s\"\nStop\n",buffs.Data()); | |
410 | exit(1); | |
411 | } | |
412 | // | |
413 | // TPCInt part ----------------------------------------------------------- | |
414 | AliCheb3DCalc::ReadLine(buffs,stream); | |
415 | if (!buffs.BeginsWith("START TPCINT")) { | |
416 | Error("LoadData","Expected: \"START TPCINT\", found \"%s\"\nStop\n",buffs.Data()); | |
417 | exit(1); | |
418 | } | |
419 | AliCheb3DCalc::ReadLine(buffs,stream); // nparam | |
420 | int nparTPCInt = buffs.Atoi(); | |
421 | // | |
422 | for (int ip=0;ip<nparTPCInt;ip++) { | |
423 | AliCheb3D* cheb = new AliCheb3D(); | |
424 | cheb->LoadData(stream); | |
425 | AddParamTPCInt(cheb); | |
426 | } | |
427 | // | |
428 | AliCheb3DCalc::ReadLine(buffs,stream); | |
429 | if (!buffs.BeginsWith("END TPCINT")) { | |
430 | Error("LoadData","Expected \"END TPCINT\", found \"%s\"\nStop\n",buffs.Data()); | |
431 | exit(1); | |
432 | } | |
433 | // | |
434 | // Dipole part ----------------------------------------------------------- | |
435 | AliCheb3DCalc::ReadLine(buffs,stream); | |
436 | if (!buffs.BeginsWith("START DIPOLE")) { | |
437 | Error("LoadData","Expected: \"START DIPOLE\", found \"%s\"\nStop\n",buffs.Data()); | |
438 | exit(1); | |
439 | } | |
440 | AliCheb3DCalc::ReadLine(buffs,stream); // nparam | |
441 | int nparDip = buffs.Atoi(); | |
442 | // | |
443 | for (int ip=0;ip<nparDip;ip++) { | |
444 | AliCheb3D* cheb = new AliCheb3D(); | |
445 | cheb->LoadData(stream); | |
446 | AddParamDip(cheb); | |
447 | } | |
0eea9d4d | 448 | // |
d28e407c | 449 | AliCheb3DCalc::ReadLine(buffs,stream); |
450 | if (!buffs.BeginsWith("END DIPOLE")) { | |
451 | Error("LoadData","Expected \"END DIPOLE\", found \"%s\"\nStop\n",GetName(),buffs.Data()); | |
452 | exit(1); | |
453 | } | |
454 | // | |
455 | AliCheb3DCalc::ReadLine(buffs,stream); | |
456 | if (!buffs.BeginsWith("END") || !buffs.Contains(GetName())) { | |
457 | Error("LoadData","Expected: \"END %s\", found \"%s\"\nStop\n",GetName(),buffs.Data()); | |
458 | exit(1); | |
459 | } | |
460 | // | |
461 | // --------------------------------------------------------------------------- | |
462 | fclose(stream); | |
463 | BuildTableSol(); | |
464 | BuildTableTPCInt(); | |
465 | BuildTableDip(); | |
466 | printf("Loaded magnetic field \"%s\" from %s\n",GetName(),strf.Data()); | |
0eea9d4d | 467 | // |
d28e407c | 468 | } |
1cf34ee8 | 469 | #endif |
d28e407c | 470 | |
471 | //_________________________________________________________________________ | |
5406439e | 472 | Int_t AliMagFCheb::FindDipSegment(const float *xyz) const |
d28e407c | 473 | { |
474 | // find the segment containing point xyz. If it is outside find the closest segment | |
475 | int xid,yid,zid = TMath::BinarySearch(fNZSegDip,fSegZDip,xyz[2]); // find zsegment | |
476 | int ysegBeg = fBegSegYDip[zid]; | |
0eea9d4d | 477 | // |
d28e407c | 478 | for (yid=0;yid<fNSegYDip[zid];yid++) if (xyz[1]<fSegYDip[ysegBeg+yid]) break; |
479 | if ( --yid < 0 ) yid = 0; | |
480 | yid += ysegBeg; | |
0eea9d4d | 481 | // |
d28e407c | 482 | int xsegBeg = fBegSegXDip[yid]; |
483 | for (xid=0;xid<fNSegXDip[yid];xid++) if (xyz[0]<fSegXDip[xsegBeg+xid]) break; | |
484 | if ( --xid < 0) xid = 0; | |
485 | xid += xsegBeg; | |
0eea9d4d | 486 | // |
d28e407c | 487 | return fSegIDDip[xid]; |
488 | } | |
489 | ||
490 | //_______________________________________________ | |
491 | #ifdef _INC_CREATION_ALICHEB3D_ | |
492 | ||
493 | ||
494 | //__________________________________________________________________________________________ | |
495 | AliMagFCheb::AliMagFCheb(const char* inputFile) : | |
496 | fNParamsSol(0), | |
497 | fNSegZSol(0), | |
498 | fNParamsTPCInt(0), | |
499 | fNSegZTPCInt(0), | |
500 | fNParamsDip(0), | |
501 | // | |
502 | fNZSegDip(0), | |
503 | fNYSegDip(0), | |
504 | fNXSegDip(0), | |
505 | // | |
506 | fSegZSol(0), | |
507 | fSegRSol(0), | |
508 | // | |
509 | fSegZTPCInt(0), | |
510 | fSegRTPCInt(0), | |
511 | // | |
512 | fSegZDip(0), | |
513 | fSegYDip(0), | |
514 | fSegXDip(0), | |
515 | // | |
516 | fNSegRSol(0), | |
517 | fSegZIdSol(0), | |
518 | // | |
519 | fNSegRTPCInt(0), | |
520 | fSegZIdTPCInt(0), | |
521 | // | |
522 | fBegSegYDip(0), | |
523 | fNSegYDip(0), | |
524 | fBegSegXDip(0), | |
525 | fNSegXDip(0), | |
526 | fSegIDDip(0), | |
527 | // | |
528 | fMinZSol(0), | |
529 | fMaxZSol(0), | |
530 | fMaxRSol(0), | |
531 | // | |
532 | fMinZDip(0), | |
533 | fMaxZDip(0), | |
534 | // | |
535 | fMinZTPCInt(0), | |
536 | fMaxZTPCInt(0), | |
537 | fMaxRTPCInt(0), | |
538 | // | |
539 | fParamsSol(0), | |
540 | fParamsDip(0), | |
541 | fParamsTPCInt(0) | |
542 | // | |
543 | // | |
544 | { | |
5406439e | 545 | // construct from coeffs from the text file |
d28e407c | 546 | LoadData(inputFile); |
0eea9d4d | 547 | } |
548 | ||
549 | //__________________________________________________________________________________________ | |
5406439e | 550 | void AliMagFCheb::AddParamSol(const AliCheb3D* param) |
0eea9d4d | 551 | { |
552 | // adds new parameterization piece for Sol | |
553 | // NOTE: pieces must be added strictly in increasing R then increasing Z order | |
554 | // | |
555 | if (!fParamsSol) fParamsSol = new TObjArray(); | |
556 | fParamsSol->Add(param); | |
557 | fNParamsSol++; | |
558 | // | |
559 | } | |
560 | ||
d28e407c | 561 | //__________________________________________________________________________________________ |
5406439e | 562 | void AliMagFCheb::AddParamTPCInt(const AliCheb3D* param) |
d28e407c | 563 | { |
564 | // adds new parameterization piece for TPCInt | |
565 | // NOTE: pieces must be added strictly in increasing R then increasing Z order | |
566 | // | |
567 | if (!fParamsTPCInt) fParamsTPCInt = new TObjArray(); | |
568 | fParamsTPCInt->Add(param); | |
569 | fNParamsTPCInt++; | |
570 | // | |
571 | } | |
572 | ||
0eea9d4d | 573 | //__________________________________________________________________________________________ |
5406439e | 574 | void AliMagFCheb::AddParamDip(const AliCheb3D* param) |
0eea9d4d | 575 | { |
576 | // adds new parameterization piece for Dipole | |
577 | // | |
578 | if (!fParamsDip) fParamsDip = new TObjArray(); | |
579 | fParamsDip->Add(param); | |
580 | fNParamsDip++; | |
581 | // | |
582 | } | |
583 | ||
d28e407c | 584 | //__________________________________________________________________________________________ |
585 | void AliMagFCheb::ResetTPCInt() | |
586 | { | |
587 | // clean TPC field integral (used for update) | |
588 | if (!fNParamsTPCInt) return; | |
589 | delete fParamsTPCInt; | |
590 | delete[] fSegZTPCInt; | |
591 | delete[] fSegRTPCInt; | |
592 | delete[] fNSegRTPCInt; | |
593 | delete[] fSegZIdTPCInt; | |
594 | // | |
595 | fNParamsTPCInt = 0; | |
596 | fNSegZTPCInt = 0; | |
597 | fSegZTPCInt = 0; | |
598 | fSegRTPCInt = 0; | |
599 | fNSegRTPCInt = 0; | |
600 | fSegZIdTPCInt = 0; | |
601 | fMinZTPCInt = 0; | |
602 | fMaxZTPCInt = 0; | |
603 | fMaxRTPCInt = 0; | |
604 | fParamsTPCInt = 0; | |
605 | // | |
606 | } | |
607 | ||
608 | //__________________________________________________ | |
609 | void AliMagFCheb::BuildTableDip() | |
610 | { | |
5406439e | 611 | // build lookup table for dipole |
d28e407c | 612 | // |
613 | TArrayF segY,segX; | |
614 | TArrayI begSegYDip,begSegXDip; | |
615 | TArrayI nsegYDip,nsegXDip; | |
616 | TArrayI segID; | |
617 | float *tmpSegZ,*tmpSegY,*tmpSegX; | |
618 | // | |
619 | // create segmentation in Z | |
620 | fNZSegDip = SegmentDipDimension(&tmpSegZ, fParamsDip, fNParamsDip, 2, 1,-1, 1,-1, 1,-1) - 1; | |
621 | fNYSegDip = 0; | |
622 | fNXSegDip = 0; | |
623 | // | |
624 | // for each Z slice create segmentation in Y | |
625 | begSegYDip.Set(fNZSegDip); | |
626 | nsegYDip.Set(fNZSegDip); | |
627 | float xyz[3]; | |
628 | for (int iz=0;iz<fNZSegDip;iz++) { | |
629 | printf("\nZSegment#%d %+e : %+e\n",iz,tmpSegZ[iz],tmpSegZ[iz+1]); | |
630 | int ny = SegmentDipDimension(&tmpSegY, fParamsDip, fNParamsDip, 1, | |
631 | 1,-1, 1,-1, tmpSegZ[iz],tmpSegZ[iz+1]) - 1; | |
632 | segY.Set(ny + fNYSegDip); | |
633 | for (int iy=0;iy<ny;iy++) segY[fNYSegDip+iy] = tmpSegY[iy]; | |
634 | begSegYDip[iz] = fNYSegDip; | |
635 | nsegYDip[iz] = ny; | |
636 | printf(" Found %d YSegments, to start from %d\n",ny, begSegYDip[iz]); | |
637 | // | |
638 | // for each slice in Z and Y create segmentation in X | |
639 | begSegXDip.Set(fNYSegDip+ny); | |
640 | nsegXDip.Set(fNYSegDip+ny); | |
641 | xyz[2] = (tmpSegZ[iz]+tmpSegZ[iz+1])/2.; // mean Z of this segment | |
642 | // | |
643 | for (int iy=0;iy<ny;iy++) { | |
644 | int isg = fNYSegDip+iy; | |
645 | printf("\n YSegment#%d %+e : %+e\n",iy, tmpSegY[iy],tmpSegY[iy+1]); | |
646 | int nx = SegmentDipDimension(&tmpSegX, fParamsDip, fNParamsDip, 0, | |
647 | 1,-1, tmpSegY[iy],tmpSegY[iy+1], tmpSegZ[iz],tmpSegZ[iz+1]) - 1; | |
648 | // | |
649 | segX.Set(nx + fNXSegDip); | |
650 | for (int ix=0;ix<nx;ix++) segX[fNXSegDip+ix] = tmpSegX[ix]; | |
651 | begSegXDip[isg] = fNXSegDip; | |
652 | nsegXDip[isg] = nx; | |
653 | printf(" Found %d XSegments, to start from %d\n",nx, begSegXDip[isg]); | |
654 | // | |
655 | segID.Set(fNXSegDip+nx); | |
656 | // | |
657 | // find corresponding params | |
658 | xyz[1] = (tmpSegY[iy]+tmpSegY[iy+1])/2.; // mean Y of this segment | |
659 | // | |
660 | for (int ix=0;ix<nx;ix++) { | |
661 | xyz[0] = (tmpSegX[ix]+tmpSegX[ix+1])/2.; // mean X of this segment | |
662 | for (int ipar=0;ipar<fNParamsDip;ipar++) { | |
663 | AliCheb3D* cheb = (AliCheb3D*) fParamsDip->At(ipar); | |
664 | if (!cheb->IsInside(xyz)) continue; | |
665 | segID[fNXSegDip+ix] = ipar; | |
666 | break; | |
667 | } | |
668 | } | |
669 | fNXSegDip += nx; | |
670 | // | |
671 | delete[] tmpSegX; | |
672 | } | |
673 | delete[] tmpSegY; | |
674 | fNYSegDip += ny; | |
675 | } | |
676 | // | |
677 | fMinZDip = tmpSegZ[0]; | |
678 | fMaxZDip = tmpSegZ[fNZSegDip]; | |
679 | fSegZDip = new Float_t[fNZSegDip]; | |
680 | for (int i=fNZSegDip;i--;) fSegZDip[i] = tmpSegZ[i]; | |
681 | delete[] tmpSegZ; | |
682 | // | |
683 | fSegYDip = new Float_t[fNYSegDip]; | |
684 | fSegXDip = new Float_t[fNXSegDip]; | |
685 | fBegSegYDip = new Int_t[fNZSegDip]; | |
686 | fNSegYDip = new Int_t[fNZSegDip]; | |
687 | fBegSegXDip = new Int_t[fNYSegDip]; | |
688 | fNSegXDip = new Int_t[fNYSegDip]; | |
689 | fSegIDDip = new Int_t[fNXSegDip]; | |
690 | // | |
691 | for (int i=fNYSegDip;i--;) fSegYDip[i] = segY[i]; | |
692 | for (int i=fNXSegDip;i--;) fSegXDip[i] = segX[i]; | |
693 | for (int i=fNZSegDip;i--;) {fBegSegYDip[i] = begSegYDip[i]; fNSegYDip[i] = nsegYDip[i];} | |
694 | for (int i=fNYSegDip;i--;) {fBegSegXDip[i] = begSegXDip[i]; fNSegXDip[i] = nsegXDip[i];} | |
695 | for (int i=fNXSegDip;i--;) {fSegIDDip[i] = segID[i];} | |
696 | // | |
697 | } | |
698 | ||
0eea9d4d | 699 | //__________________________________________________________________________________________ |
700 | void AliMagFCheb::BuildTableSol() | |
701 | { | |
702 | // build the indexes for each parameterization of Solenoid | |
703 | // | |
704 | const float kSafety=0.001; | |
705 | // | |
d28e407c | 706 | if (fNParamsSol<1) return; |
92a04c92 | 707 | fNSegZSol = 0; |
708 | fMaxRSol = 0; | |
0eea9d4d | 709 | fSegRSol = new Float_t[fNParamsSol]; |
710 | float *tmpbufF = new float[fNParamsSol+1]; | |
711 | int *tmpbufI = new int[fNParamsSol+1]; | |
712 | int *tmpbufI1 = new int[fNParamsSol+1]; | |
713 | // | |
714 | // count number of Z slices and number of R slices in each Z slice | |
715 | for (int ip=0;ip<fNParamsSol;ip++) { | |
716 | if (ip==0 || (GetParamSol(ip)->GetBoundMax(2)-GetParamSol(ip-1)->GetBoundMax(2))>kSafety) { // new Z slice | |
717 | tmpbufF[fNSegZSol] = GetParamSol(ip)->GetBoundMax(2); // | |
718 | tmpbufI[fNSegZSol] = 0; | |
719 | tmpbufI1[fNSegZSol++] = ip; | |
720 | } | |
721 | fSegRSol[ip] = GetParamSol(ip)->GetBoundMax(0); // upper R | |
722 | tmpbufI[fNSegZSol-1]++; | |
92a04c92 | 723 | if (fMaxRSol<fSegRSol[ip]) fMaxRSol = fSegRSol[ip]; |
0eea9d4d | 724 | } |
725 | // | |
726 | fSegZSol = new Float_t[fNSegZSol]; | |
727 | fSegZIdSol = new Int_t[fNSegZSol]; | |
728 | fNSegRSol = new Int_t[fNSegZSol]; | |
729 | for (int iz=0;iz<fNSegZSol;iz++) { | |
730 | fSegZSol[iz] = tmpbufF[iz]; | |
731 | fNSegRSol[iz] = tmpbufI[iz]; | |
732 | fSegZIdSol[iz] = tmpbufI1[iz]; | |
733 | } | |
734 | // | |
735 | fMinZSol = GetParamSol(0)->GetBoundMin(2); | |
736 | fMaxZSol = GetParamSol(fNParamsSol-1)->GetBoundMax(2); | |
0eea9d4d | 737 | // |
738 | delete[] tmpbufF; | |
739 | delete[] tmpbufI; | |
740 | delete[] tmpbufI1; | |
741 | // | |
742 | // | |
743 | } | |
744 | ||
745 | //__________________________________________________________________________________________ | |
d28e407c | 746 | void AliMagFCheb::BuildTableTPCInt() |
0eea9d4d | 747 | { |
d28e407c | 748 | // build the indexes for each parameterization of TPC field integral |
0eea9d4d | 749 | // |
d28e407c | 750 | const float kSafety=0.001; |
0eea9d4d | 751 | // |
d28e407c | 752 | if (fNParamsTPCInt<1) return; |
92a04c92 | 753 | fNSegZTPCInt = 0; |
d28e407c | 754 | fSegRTPCInt = new Float_t[fNParamsTPCInt]; |
755 | float *tmpbufF = new float[fNParamsTPCInt+1]; | |
756 | int *tmpbufI = new int[fNParamsTPCInt+1]; | |
757 | int *tmpbufI1 = new int[fNParamsTPCInt+1]; | |
0eea9d4d | 758 | // |
d28e407c | 759 | // count number of Z slices and number of R slices in each Z slice |
760 | for (int ip=0;ip<fNParamsTPCInt;ip++) { | |
761 | if (ip==0 || (GetParamTPCInt(ip)->GetBoundMax(2)-GetParamTPCInt(ip-1)->GetBoundMax(2))>kSafety) { // new Z slice | |
762 | tmpbufF[fNSegZTPCInt] = GetParamTPCInt(ip)->GetBoundMax(2); // | |
763 | tmpbufI[fNSegZTPCInt] = 0; | |
764 | tmpbufI1[fNSegZTPCInt++] = ip; | |
765 | } | |
766 | fSegRTPCInt[ip] = GetParamTPCInt(ip)->GetBoundMax(0); // upper R | |
767 | tmpbufI[fNSegZTPCInt-1]++; | |
768 | } | |
0eea9d4d | 769 | // |
d28e407c | 770 | fSegZTPCInt = new Float_t[fNSegZTPCInt]; |
771 | fSegZIdTPCInt = new Int_t[fNSegZTPCInt]; | |
772 | fNSegRTPCInt = new Int_t[fNSegZTPCInt]; | |
773 | for (int iz=0;iz<fNSegZTPCInt;iz++) { | |
774 | fSegZTPCInt[iz] = tmpbufF[iz]; | |
775 | fNSegRTPCInt[iz] = tmpbufI[iz]; | |
776 | fSegZIdTPCInt[iz] = tmpbufI1[iz]; | |
777 | } | |
778 | // | |
779 | fMinZTPCInt = GetParamTPCInt(0)->GetBoundMin(2); | |
780 | fMaxZTPCInt = GetParamTPCInt(fNParamsTPCInt-1)->GetBoundMax(2); | |
781 | fMaxRTPCInt = GetParamTPCInt(fNParamsTPCInt-1)->GetBoundMax(0); | |
782 | // | |
783 | delete[] tmpbufF; | |
784 | delete[] tmpbufI; | |
785 | delete[] tmpbufI1; | |
0eea9d4d | 786 | // |
0eea9d4d | 787 | // |
0eea9d4d | 788 | } |
789 | ||
0eea9d4d | 790 | void AliMagFCheb::SaveData(const char* outfile) const |
791 | { | |
792 | // writes coefficients data to output text file | |
793 | TString strf = outfile; | |
794 | gSystem->ExpandPathName(strf); | |
795 | FILE* stream = fopen(strf,"w+"); | |
796 | // | |
d28e407c | 797 | // Sol part --------------------------------------------------------- |
0eea9d4d | 798 | fprintf(stream,"# Set of Chebyshev parameterizations for ALICE magnetic field\nSTART %s\n",GetName()); |
799 | fprintf(stream,"START SOLENOID\n#Number of pieces\n%d\n",fNParamsSol); | |
800 | for (int ip=0;ip<fNParamsSol;ip++) GetParamSol(ip)->SaveData(stream); | |
801 | fprintf(stream,"#\nEND SOLENOID\n"); | |
802 | // | |
d28e407c | 803 | // TPCInt part --------------------------------------------------------- |
804 | fprintf(stream,"# Set of Chebyshev parameterizations for ALICE magnetic field\nSTART %s\n",GetName()); | |
805 | fprintf(stream,"START TPCINT\n#Number of pieces\n%d\n",fNParamsTPCInt); | |
806 | for (int ip=0;ip<fNParamsTPCInt;ip++) GetParamTPCInt(ip)->SaveData(stream); | |
807 | fprintf(stream,"#\nEND TPCINT\n"); | |
808 | // | |
809 | // Dip part --------------------------------------------------------- | |
0eea9d4d | 810 | fprintf(stream,"START DIPOLE\n#Number of pieces\n%d\n",fNParamsDip); |
811 | for (int ip=0;ip<fNParamsDip;ip++) GetParamDip(ip)->SaveData(stream); | |
812 | fprintf(stream,"#\nEND DIPOLE\n"); | |
813 | // | |
814 | fprintf(stream,"#\nEND %s\n",GetName()); | |
815 | // | |
816 | fclose(stream); | |
817 | // | |
818 | } | |
0eea9d4d | 819 | |
d28e407c | 820 | Int_t AliMagFCheb::SegmentDipDimension(float** seg,const TObjArray* par,int npar, int dim, |
821 | float xmn,float xmx,float ymn,float ymx,float zmn,float zmx) | |
0eea9d4d | 822 | { |
d28e407c | 823 | // find all boundaries in deimension dim for boxes in given region. |
824 | // if mn>mx for given projection the check is not done for it. | |
825 | float *tmpC = new float[2*npar]; | |
826 | int *tmpInd = new int[2*npar]; | |
827 | int nseg0 = 0; | |
828 | for (int ip=0;ip<npar;ip++) { | |
829 | AliCheb3D* cheb = (AliCheb3D*) par->At(ip); | |
830 | if (xmn<xmx && (cheb->GetBoundMin(0)>(xmx+xmn)/2 || cheb->GetBoundMax(0)<(xmn+xmx)/2)) continue; | |
831 | if (ymn<ymx && (cheb->GetBoundMin(1)>(ymx+ymn)/2 || cheb->GetBoundMax(1)<(ymn+ymx)/2)) continue; | |
832 | if (zmn<zmx && (cheb->GetBoundMin(2)>(zmx+zmn)/2 || cheb->GetBoundMax(2)<(zmn+zmx)/2)) continue; | |
833 | // | |
834 | tmpC[nseg0++] = cheb->GetBoundMin(dim); | |
835 | tmpC[nseg0++] = cheb->GetBoundMax(dim); | |
0eea9d4d | 836 | } |
d28e407c | 837 | // range Dim's boundaries in increasing order |
838 | TMath::Sort(nseg0,tmpC,tmpInd,kFALSE); | |
839 | // count number of really different Z's | |
840 | int nseg = 0; | |
841 | float cprev = -1e6; | |
842 | for (int ip=0;ip<nseg0;ip++) { | |
843 | if (TMath::Abs(cprev-tmpC[ tmpInd[ip] ])>1e-4) { | |
844 | cprev = tmpC[ tmpInd[ip] ]; | |
845 | nseg++; | |
846 | } | |
847 | else tmpInd[ip] = -1; // supress redundant Z | |
0eea9d4d | 848 | } |
d28e407c | 849 | // |
850 | *seg = new float[nseg]; // create final Z segmenations | |
851 | nseg = 0; | |
852 | for (int ip=0;ip<nseg0;ip++) if (tmpInd[ip]>=0) (*seg)[nseg++] = tmpC[ tmpInd[ip] ]; | |
853 | // | |
854 | delete[] tmpC; | |
855 | delete[] tmpInd; | |
856 | return nseg; | |
0eea9d4d | 857 | } |
d28e407c | 858 | |
859 | #endif | |
860 |