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05da1b4e | 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 | ||
16 | #include <TMath.h> | |
17 | #include <TMatrixF.h> | |
2d4e971f | 18 | #include <TStopwatch.h> |
8d79bbb7 | 19 | #include <TString.h> |
20 | #include <TFile.h> | |
21 | #include <TObjArray.h> | |
22 | #include <TSystem.h> | |
23 | #include <THashList.h> | |
fd245273 | 24 | #include <TVector2.h> |
25 | #include <TLinearFitter.h> | |
05da1b4e | 26 | |
27 | #include <AliLog.h> | |
28 | #include <AliTPCROC.h> | |
29 | ||
30 | #include "AliTPCCorrection.h" | |
31 | ||
32 | #include "AliTPCCorrectionLookupTable.h" | |
33 | ||
34 | ClassImp(AliTPCCorrectionLookupTable) | |
35 | ||
36 | //_________________________________________________________________________________________ | |
37 | AliTPCCorrectionLookupTable::AliTPCCorrectionLookupTable() | |
38 | : AliTPCCorrection() | |
8d79bbb7 | 39 | , fNR(0) |
40 | , fNPhi(0) | |
41 | , fNZ(0) | |
862220e2 | 42 | , fCorrScaleFactor(-1) |
fd245273 | 43 | , fFillCorrection(kTRUE) |
531a1f0b | 44 | , fLimitsR() |
45 | , fLimitsPhi() | |
46 | , fLimitsZ() | |
05da1b4e | 47 | , fLookUpDxDist(0x0) |
48 | , fLookUpDyDist(0x0) | |
49 | , fLookUpDzDist(0x0) | |
50 | , fLookUpDxCorr(0x0) | |
51 | , fLookUpDyCorr(0x0) | |
52 | , fLookUpDzCorr(0x0) | |
53 | { | |
54 | // | |
55 | // | |
56 | // | |
57 | } | |
58 | //_________________________________________________________________________________________ | |
59 | AliTPCCorrectionLookupTable::~AliTPCCorrectionLookupTable() | |
60 | { | |
61 | // | |
62 | // dtor | |
63 | // | |
64 | ||
65 | ResetTables(); | |
66 | } | |
67 | ||
68 | //_________________________________________________________________________________________ | |
69 | void AliTPCCorrectionLookupTable::GetDistortion(const Float_t x[],const Short_t roc,Float_t dx[]) { | |
70 | // | |
71 | // Get interpolated Distortion | |
72 | // | |
73 | ||
2d4e971f | 74 | GetInterpolation(x,roc,dx,fLookUpDxDist,fLookUpDyDist,fLookUpDzDist); |
05da1b4e | 75 | } |
76 | ||
77 | //_________________________________________________________________________________________ | |
78 | void AliTPCCorrectionLookupTable::GetCorrection(const Float_t x[],const Short_t roc,Float_t dx[]) { | |
79 | // | |
80 | // Get interplolated correction | |
81 | // | |
2d4e971f | 82 | GetInterpolation(x,roc,dx,fLookUpDxCorr,fLookUpDyCorr,fLookUpDzCorr); |
862220e2 | 83 | |
84 | if (fCorrScaleFactor>0) { | |
85 | dx[0]*=fCorrScaleFactor; | |
86 | dx[1]*=fCorrScaleFactor; | |
87 | dx[2]*=fCorrScaleFactor; | |
88 | } | |
05da1b4e | 89 | } |
90 | ||
91 | //_________________________________________________________________________________________ | |
92 | void AliTPCCorrectionLookupTable::GetInterpolation(const Float_t x[],const Short_t roc,Float_t dx[], | |
2d4e971f | 93 | TMatrixF **mDx, TMatrixF **mDy, TMatrixF **mDz) |
05da1b4e | 94 | { |
95 | // | |
96 | // Calculates the correction/distotring from a lookup table | |
97 | // type: 0 = correction | |
98 | // 1 = distortion | |
99 | // | |
100 | ||
101 | // Float_t typeSign=-1; | |
102 | // if (type==1) typeSign=1; | |
103 | ||
104 | Int_t order = 1 ; // FIXME: hardcoded? Linear interpolation = 1, Quadratic = 2 | |
105 | ||
106 | Double_t r, phi, z ; | |
107 | Int_t sign; | |
108 | ||
109 | r = TMath::Sqrt( x[0]*x[0] + x[1]*x[1] ) ; | |
110 | phi = TMath::ATan2(x[1],x[0]) ; | |
111 | if ( phi < 0 ) phi += TMath::TwoPi() ; // Table uses phi from 0 to 2*Pi | |
112 | z = x[2] ; // Create temporary copy of x[2] | |
113 | ||
114 | if ( (roc%36) < 18 ) { | |
115 | sign = 1; // (TPC A side) | |
116 | } else { | |
117 | sign = -1; // (TPC C side) | |
118 | } | |
119 | ||
120 | if ( sign==1 && z < fgkZOffSet ) z = fgkZOffSet; // Protect against discontinuity at CE | |
121 | if ( sign==-1 && z > -fgkZOffSet ) z = -fgkZOffSet; // Protect against discontinuity at CE | |
122 | ||
123 | ||
124 | if ( (sign==1 && z<0) || (sign==-1 && z>0) ) // just a consistency check | |
125 | AliError("ROC number does not correspond to z coordinate! Calculation of distortions is most likely wrong!"); | |
126 | ||
127 | // Get the Er and Ephi field integrals plus the integral over Z | |
128 | dx[0] = Interpolate3DTable(order, r, z, phi, | |
129 | fNR, fNZ, fNPhi, | |
531a1f0b | 130 | fLimitsR.GetMatrixArray(), |
131 | fLimitsZ.GetMatrixArray(), | |
132 | fLimitsPhi.GetMatrixArray(), | |
05da1b4e | 133 | mDx ); |
134 | dx[1] = Interpolate3DTable(order, r, z, phi, | |
135 | fNR, fNZ, fNPhi, | |
531a1f0b | 136 | fLimitsR.GetMatrixArray(), |
137 | fLimitsZ.GetMatrixArray(), | |
138 | fLimitsPhi.GetMatrixArray(), | |
05da1b4e | 139 | mDy); |
140 | dx[2] = Interpolate3DTable(order, r, z, phi, | |
141 | fNR, fNZ, fNPhi, | |
531a1f0b | 142 | fLimitsR.GetMatrixArray(), |
143 | fLimitsZ.GetMatrixArray(), | |
144 | fLimitsPhi.GetMatrixArray(), | |
05da1b4e | 145 | mDz ); |
146 | } | |
147 | ||
148 | //_________________________________________________________________________________________ | |
2d4e971f | 149 | void AliTPCCorrectionLookupTable::CreateLookupTable(AliTPCCorrection &tpcCorr, Float_t stepSize/*=5.*/) |
05da1b4e | 150 | { |
151 | // | |
8d79bbb7 | 152 | // create lookup table for all phi,r,z bins |
05da1b4e | 153 | // |
154 | ||
8d79bbb7 | 155 | if (fNR==0) { |
156 | AliError("Limits are not set yet. Please use one of the Set..Limits functions first"); | |
157 | return; | |
158 | } | |
05da1b4e | 159 | |
2d4e971f | 160 | TStopwatch s; |
161 | ||
162 | ResetTables(); | |
163 | InitTables(); | |
164 | ||
8d79bbb7 | 165 | for (Int_t iPhi=0; iPhi<fNPhi; ++iPhi){ |
166 | CreateLookupTablePhiBin(tpcCorr,iPhi,stepSize); | |
167 | } | |
168 | ||
169 | s.Stop(); | |
170 | AliInfo(Form("Required time for lookup table creation: %.2f (%.2f) sec. real (cpu)",s.RealTime(),s.CpuTime())); | |
171 | } | |
172 | ||
173 | //_________________________________________________________________________________________ | |
174 | void AliTPCCorrectionLookupTable::CreateLookupTableSinglePhi(AliTPCCorrection &tpcCorr, Int_t iPhi, Float_t stepSize) | |
175 | { | |
176 | // | |
177 | // Lookup table for only one phi bin. Can be used for parallel processing | |
178 | // | |
179 | ||
180 | if (fNR==0) { | |
181 | AliError("Limits are not set yet. Please use one of the Set..Limits functions first"); | |
182 | return; | |
183 | } | |
184 | ||
185 | TStopwatch s; | |
186 | ||
187 | ResetTables(); | |
188 | InitTableArrays(); | |
189 | InitTablesPhiBin(iPhi); | |
190 | CreateLookupTablePhiBin(tpcCorr,iPhi,stepSize); | |
191 | ||
192 | s.Stop(); | |
193 | AliInfo(Form("Required time for lookup table creation: %.2f (%.2f) sec. real (cpu)",s.RealTime(),s.CpuTime())); | |
194 | } | |
195 | ||
196 | //_________________________________________________________________________________________ | |
197 | void AliTPCCorrectionLookupTable::CreateLookupTablePhiBin(AliTPCCorrection &tpcCorr, Int_t iPhi, Float_t stepSize) | |
198 | { | |
199 | // | |
200 | // | |
201 | // | |
202 | ||
203 | if (iPhi<0||iPhi>=fNPhi) return; | |
204 | ||
2d4e971f | 205 | const Float_t delta=stepSize; // 5cm |
05da1b4e | 206 | Float_t x[3]={0.,0.,0.}; |
207 | Float_t dx[3]={0.,0.,0.}; | |
8d79bbb7 | 208 | |
209 | Double_t phi=fLimitsPhi(iPhi); | |
210 | // | |
211 | TMatrixF &mDxDist = *fLookUpDxDist[iPhi]; | |
212 | TMatrixF &mDyDist = *fLookUpDyDist[iPhi]; | |
213 | TMatrixF &mDzDist = *fLookUpDzDist[iPhi]; | |
214 | // | |
215 | TMatrixF &mDxCorr = *fLookUpDxCorr[iPhi]; | |
216 | TMatrixF &mDyCorr = *fLookUpDyCorr[iPhi]; | |
217 | TMatrixF &mDzCorr = *fLookUpDzCorr[iPhi]; | |
05da1b4e | 218 | |
8d79bbb7 | 219 | for (Int_t ir=0; ir<fNR; ++ir){ |
220 | Double_t r=fLimitsR(ir); | |
221 | x[0]=r * TMath::Cos(phi); | |
222 | x[1]=r * TMath::Sin(phi); | |
05da1b4e | 223 | |
8d79bbb7 | 224 | for (Int_t iz=0; iz<fNZ; ++iz){ |
225 | Double_t z=fLimitsZ(iz); | |
226 | x[2]=z; | |
227 | //TODO: change hardcoded value for r>133.? | |
228 | Int_t roc=TMath::Nint(phi*TMath::RadToDeg()/20.)%18; | |
229 | if (r>133.) roc+=36; | |
230 | if (z<0) roc+=18; | |
231 | ||
232 | if (delta>0) | |
233 | tpcCorr.GetDistortionIntegralDz(x,roc,dx,delta); | |
234 | else | |
235 | tpcCorr.GetDistortion(x,roc,dx); | |
236 | mDxDist(ir,iz)=dx[0]; | |
237 | mDyDist(ir,iz)=dx[1]; | |
238 | mDzDist(ir,iz)=dx[2]; | |
fd245273 | 239 | |
240 | if (fFillCorrection) { | |
241 | if (delta>0) | |
242 | tpcCorr.GetCorrectionIntegralDz(x,roc,dx,delta); | |
243 | else | |
244 | tpcCorr.GetCorrection(x,roc,dx); | |
245 | mDxCorr(ir,iz)=dx[0]; | |
246 | mDyCorr(ir,iz)=dx[1]; | |
247 | mDzCorr(ir,iz)=dx[2]; | |
248 | } | |
05da1b4e | 249 | } |
250 | } | |
8d79bbb7 | 251 | |
05da1b4e | 252 | } |
253 | ||
254 | //_________________________________________________________________________________________ | |
255 | void AliTPCCorrectionLookupTable::InitTables() | |
8d79bbb7 | 256 | { |
257 | // | |
258 | // Init all tables | |
259 | // | |
260 | ||
261 | InitTableArrays(); | |
262 | for (Int_t iPhi=0; iPhi<fNPhi; ++iPhi){ | |
263 | InitTablesPhiBin(iPhi); | |
264 | } | |
265 | } | |
266 | ||
fef4baf6 | 267 | //_________________________________________________________________________________________ |
268 | void AliTPCCorrectionLookupTable::CreateLookupTableFromResidualDistortion(THn &resDist) | |
269 | { | |
270 | // | |
271 | // create lookup table from residual distortions stored in a 3d histogram | |
272 | // assume dimensions are r, phi, z | |
273 | // | |
274 | if (fNR==0) { | |
275 | AliError("Limits are not set yet. Please use one of the Set..Limits functions first"); | |
276 | return; | |
277 | } | |
278 | ||
fef4baf6 | 279 | ResetTables(); |
280 | InitTables(); | |
281 | ||
282 | Double_t x[3]={0.,0.,0.}; | |
283 | ||
284 | for (Int_t iPhi=0; iPhi<fNPhi; ++iPhi){ | |
285 | const Double_t phi=fLimitsPhi(iPhi); | |
286 | x[1]=phi; | |
287 | // | |
288 | TMatrixF &mDxDist = *fLookUpDxDist[iPhi]; | |
289 | TMatrixF &mDyDist = *fLookUpDyDist[iPhi]; | |
290 | TMatrixF &mDzDist = *fLookUpDzDist[iPhi]; | |
291 | // | |
292 | TMatrixF &mDxCorr = *fLookUpDxCorr[iPhi]; | |
293 | TMatrixF &mDyCorr = *fLookUpDyCorr[iPhi]; | |
294 | TMatrixF &mDzCorr = *fLookUpDzCorr[iPhi]; | |
295 | ||
296 | for (Int_t ir=0; ir<fNR; ++ir){ | |
297 | const Double_t r=fLimitsR(ir); | |
298 | x[0]=r; | |
299 | ||
300 | for (Int_t iz=0; iz<fNZ; ++iz){ | |
301 | const Double_t z=fLimitsZ(iz); | |
302 | x[2]=z; | |
303 | ||
304 | const Double_t drphi = resDist.GetBinContent(resDist.GetBin(x)); | |
305 | Double_t dx[3]={0.,drphi,0.}; | |
306 | ||
307 | // transform rphi distortions (local y, so dy') to a global distortion | |
308 | // assume no radial distortion (dx' = 0) | |
309 | // assume no residual distortion in z for the moment | |
310 | Double_t cs=TMath::Cos(phi), sn=TMath::Sin(phi), lx=dx[0]; | |
311 | dx[0]=lx*cs - dx[1]*sn; dx[1]=lx*sn + dx[1]*cs; | |
312 | ||
313 | mDxDist(ir,iz)=dx[0]; | |
314 | mDyDist(ir,iz)=dx[1]; | |
315 | mDzDist(ir,iz)=dx[2]; | |
316 | ||
317 | mDxCorr(ir,iz)=-dx[0]; | |
318 | mDyCorr(ir,iz)=-dx[1]; | |
319 | mDzCorr(ir,iz)=-dx[2]; | |
320 | } | |
321 | } | |
322 | } | |
323 | } | |
637ba19a | 324 | |
325 | //_________________________________________________________________________________________ | |
326 | void AliTPCCorrectionLookupTable::CreateResidual(AliTPCCorrection *distortion, AliTPCCorrection* correction) | |
327 | { | |
328 | // | |
329 | // create lookup table from residual distortions calculated from distorted - correction | |
330 | // | |
331 | ||
332 | ResetTables(); | |
333 | InitTables(); | |
334 | ||
335 | Float_t x[3]={0.,0.,0.}; | |
fef4baf6 | 336 | |
637ba19a | 337 | for (Int_t iPhi=0; iPhi<fNPhi; ++iPhi){ |
338 | const Double_t phi=fLimitsPhi(iPhi); | |
339 | // | |
340 | TMatrixF &mDxDist = *fLookUpDxDist[iPhi]; | |
341 | TMatrixF &mDyDist = *fLookUpDyDist[iPhi]; | |
342 | TMatrixF &mDzDist = *fLookUpDzDist[iPhi]; | |
343 | // | |
344 | TMatrixF &mDxCorr = *fLookUpDxCorr[iPhi]; | |
345 | TMatrixF &mDyCorr = *fLookUpDyCorr[iPhi]; | |
346 | TMatrixF &mDzCorr = *fLookUpDzCorr[iPhi]; | |
347 | ||
348 | for (Int_t ir=0; ir<fNR; ++ir){ | |
349 | const Double_t r=fLimitsR(ir); | |
350 | x[0]=r * TMath::Cos(phi); | |
351 | x[1]=r * TMath::Sin(phi); | |
352 | ||
353 | for (Int_t iz=0; iz<fNZ; ++iz){ | |
354 | const Double_t z=fLimitsZ(iz); | |
355 | x[2]=z; | |
356 | ||
357 | //original point | |
d8fd14dd | 358 | Float_t xdc[3]={x[0], x[1], x[2]}; |
637ba19a | 359 | |
360 | Int_t roc=TMath::Nint(phi*TMath::RadToDeg()/20.)%18; | |
361 | if (r>133.) roc+=36; | |
362 | if (z<0) roc+=18; | |
363 | ||
364 | //get residual distortion | |
d8fd14dd | 365 | distortion->DistortPoint(xdc, roc); |
366 | correction->CorrectPoint(xdc, roc); | |
6e4c2f43 | 367 | Float_t dx[3]={xdc[0]-x[0], xdc[1]-x[1], xdc[2]-x[2]}; |
637ba19a | 368 | |
369 | mDxDist(ir,iz)=dx[0]; | |
370 | mDyDist(ir,iz)=dx[1]; | |
371 | mDzDist(ir,iz)=dx[2]; | |
372 | ||
373 | mDxCorr(ir,iz)=-dx[0]; | |
374 | mDyCorr(ir,iz)=-dx[1]; | |
375 | mDzCorr(ir,iz)=-dx[2]; | |
376 | } | |
377 | } | |
378 | } | |
379 | } | |
380 | ||
8d79bbb7 | 381 | //_________________________________________________________________________________________ |
382 | void AliTPCCorrectionLookupTable::InitTablesPhiBin(Int_t iPhi) | |
383 | { | |
384 | // | |
385 | // | |
386 | // | |
387 | ||
388 | // check if already initialised | |
389 | if (iPhi<0||iPhi>=fNPhi) return; | |
390 | if (fLookUpDxCorr[iPhi]) return; | |
391 | ||
392 | fLookUpDxCorr[iPhi] = new TMatrixF(fNR,fNZ); | |
393 | fLookUpDyCorr[iPhi] = new TMatrixF(fNR,fNZ); | |
394 | fLookUpDzCorr[iPhi] = new TMatrixF(fNR,fNZ); | |
395 | ||
396 | fLookUpDxDist[iPhi] = new TMatrixF(fNR,fNZ); | |
397 | fLookUpDyDist[iPhi] = new TMatrixF(fNR,fNZ); | |
398 | fLookUpDzDist[iPhi] = new TMatrixF(fNR,fNZ); | |
399 | ||
400 | } | |
401 | //_________________________________________________________________________________________ | |
402 | void AliTPCCorrectionLookupTable::InitTableArrays() | |
05da1b4e | 403 | { |
404 | // | |
405 | // | |
406 | // | |
8d79bbb7 | 407 | |
408 | // needs to be before the table creation to set the limits | |
409 | SetupDefaultLimits(); | |
410 | ||
05da1b4e | 411 | fLookUpDxCorr = new TMatrixF*[fNPhi]; |
412 | fLookUpDyCorr = new TMatrixF*[fNPhi]; | |
413 | fLookUpDzCorr = new TMatrixF*[fNPhi]; | |
414 | ||
415 | fLookUpDxDist = new TMatrixF*[fNPhi]; | |
416 | fLookUpDyDist = new TMatrixF*[fNPhi]; | |
417 | fLookUpDzDist = new TMatrixF*[fNPhi]; | |
418 | ||
419 | for (Int_t iPhi=0; iPhi<fNPhi; ++iPhi){ | |
8d79bbb7 | 420 | fLookUpDxCorr[iPhi] = 0x0; |
421 | fLookUpDyCorr[iPhi] = 0x0; | |
422 | fLookUpDzCorr[iPhi] = 0x0; | |
05da1b4e | 423 | |
8d79bbb7 | 424 | fLookUpDxDist[iPhi] = 0x0; |
425 | fLookUpDyDist[iPhi] = 0x0; | |
426 | fLookUpDzDist[iPhi] = 0x0; | |
05da1b4e | 427 | } |
05da1b4e | 428 | } |
429 | ||
430 | //_________________________________________________________________________________________ | |
431 | void AliTPCCorrectionLookupTable::ResetTables() | |
432 | { | |
433 | // | |
434 | // Reset the lookup tables | |
435 | // | |
436 | ||
437 | if (!fLookUpDxCorr) return; | |
438 | ||
439 | for (Int_t iPhi=0; iPhi<fNPhi; ++iPhi){ | |
440 | delete fLookUpDxCorr[iPhi]; | |
441 | delete fLookUpDyCorr[iPhi]; | |
442 | delete fLookUpDzCorr[iPhi]; | |
443 | ||
444 | delete fLookUpDxDist[iPhi]; | |
445 | delete fLookUpDyDist[iPhi]; | |
446 | delete fLookUpDzDist[iPhi]; | |
447 | } | |
448 | ||
449 | delete [] fLookUpDxCorr; | |
450 | delete [] fLookUpDyCorr; | |
451 | delete [] fLookUpDzCorr; | |
452 | ||
453 | delete [] fLookUpDxDist; | |
454 | delete [] fLookUpDyDist; | |
455 | delete [] fLookUpDzDist; | |
456 | ||
457 | fLookUpDxCorr = 0x0; | |
458 | fLookUpDyCorr = 0x0; | |
459 | fLookUpDzCorr = 0x0; | |
460 | ||
461 | fLookUpDxDist = 0x0; | |
462 | fLookUpDyDist = 0x0; | |
463 | fLookUpDzDist = 0x0; | |
05da1b4e | 464 | } |
465 | ||
466 | //_________________________________________________________________________________________ | |
467 | void AliTPCCorrectionLookupTable::SetupDefaultLimits() | |
468 | { | |
469 | // | |
470 | // Set default limits for tables | |
471 | // | |
472 | ||
531a1f0b | 473 | fNR = kNR; |
474 | fNPhi = kNPhi; | |
475 | fNZ = kNZ; | |
476 | fLimitsR. ResizeTo(fNR); | |
477 | fLimitsPhi.ResizeTo(fNPhi); | |
478 | fLimitsZ. ResizeTo(fNZ); | |
479 | fLimitsR. SetElements(fgkRList); | |
480 | fLimitsPhi.SetElements(fgkPhiList); | |
481 | fLimitsZ. SetElements(fgkZList); | |
05da1b4e | 482 | } |
8d79bbb7 | 483 | |
484 | //_________________________________________________________________________________________ | |
485 | void AliTPCCorrectionLookupTable::ResetLimits() | |
486 | { | |
487 | fNR = 0; | |
488 | fNPhi = 0; | |
489 | fNZ = 0; | |
490 | ||
491 | fLimitsR. ResizeTo(1); | |
492 | fLimitsPhi.ResizeTo(1); | |
493 | fLimitsZ. ResizeTo(1); | |
494 | } | |
495 | ||
496 | //_________________________________________________________________________________________ | |
497 | void AliTPCCorrectionLookupTable::MergePhiTables(const char* files) | |
498 | { | |
499 | // | |
500 | // merge all lookup tables stored in 'files' with this one | |
501 | // assume that each lookup table in each file has only one phi bin | |
502 | // | |
503 | ||
504 | ResetTables(); | |
505 | ResetLimits(); // use limits from the first file assuming they are all the same | |
506 | ||
507 | TString sfiles=gSystem->GetFromPipe(Form("ls %s",files)); | |
508 | TObjArray *arrFiles=sfiles.Tokenize("\n"); | |
509 | ||
510 | for (Int_t i=0; i<arrFiles->GetEntriesFast();++i){ | |
511 | TFile f(arrFiles->At(i)->GetName()); | |
512 | if (!f.IsOpen() || f.IsZombie()) continue; | |
513 | AliTPCCorrectionLookupTable *lt=dynamic_cast<AliTPCCorrectionLookupTable*>(f.Get(f.GetListOfKeys()->First()->GetName())); | |
514 | if (!lt) { | |
515 | AliError(Form("first object in file '%s' is not of type AliTPCCorrectionLookupTable!",f.GetName())); | |
516 | continue; | |
517 | } | |
518 | ||
519 | if (!fNR) { | |
520 | fNR = lt->fNR; | |
521 | fNPhi = lt->fNPhi; | |
522 | fNZ = lt->fNZ; | |
523 | fLimitsR = lt->fLimitsR; | |
524 | fLimitsZ = lt->fLimitsZ; | |
525 | fLimitsPhi = lt->fLimitsPhi; | |
526 | InitTableArrays(); | |
527 | } else { | |
528 | if (fNR!=lt->fNR || fNPhi!=lt->fNPhi || fNZ!=lt->fNZ ){ | |
529 | AliError(Form("Current limits don't macht the ones in file '%s'",f.GetName())); | |
530 | continue; | |
531 | } | |
532 | } | |
533 | ||
534 | for (Int_t iPhi=0; iPhi<fNPhi; ++iPhi) { | |
535 | if (!lt->fLookUpDxCorr[iPhi]) continue; | |
536 | ||
537 | AliInfo(Form("Adding phi bin '%d' from file '%s'",iPhi,f.GetName())); | |
538 | ||
539 | InitTablesPhiBin(iPhi); | |
540 | ||
541 | *fLookUpDxDist[iPhi] = *lt->fLookUpDxDist[iPhi]; | |
542 | *fLookUpDyDist[iPhi] = *lt->fLookUpDyDist[iPhi]; | |
543 | *fLookUpDzDist[iPhi] = *lt->fLookUpDzDist[iPhi]; | |
544 | // | |
545 | *fLookUpDxCorr[iPhi] = *lt->fLookUpDxCorr[iPhi]; | |
546 | *fLookUpDyCorr[iPhi] = *lt->fLookUpDyCorr[iPhi]; | |
547 | *fLookUpDzCorr[iPhi] = *lt->fLookUpDzCorr[iPhi]; | |
548 | break; | |
549 | } | |
550 | } | |
551 | ||
552 | //check of all phi bins are initialised | |
553 | for (Int_t iPhi=0; iPhi<fNPhi; ++iPhi) { | |
554 | if (!fLookUpDxCorr[iPhi]) { | |
c0701530 | 555 | AliFatal(Form("Phi bin '%d' not initialised from files!",iPhi)); |
8d79bbb7 | 556 | } |
557 | } | |
558 | ||
559 | delete arrFiles; | |
fd245273 | 560 | } |
561 | ||
562 | //_________________________________________________________________________________________ | |
563 | void AliTPCCorrectionLookupTable::BuildExactInverse() | |
564 | { | |
565 | // | |
566 | // this method build the exact inverse of the standard distortion map | |
567 | // for the the distortion man first needs to be calculated | |
568 | // then the correction map will be overwritten | |
569 | // | |
570 | ||
571 | Float_t x[3] = {0.,0.,0.}; | |
572 | Float_t x2[3] = {0.,0.,0.}; | |
573 | Float_t xref[3] = {0.,0.,0.}; | |
574 | Float_t xd[3] = {0.,0.,0.}; | |
575 | Float_t dx[3] = {0.,0.,0.}; | |
576 | ||
577 | // reset correction matrices | |
578 | for (Int_t iPhi=0; iPhi<fNPhi; ++iPhi){ | |
579 | TMatrixF &mDxCorr = *fLookUpDxCorr[iPhi]; | |
580 | TMatrixF &mDyCorr = *fLookUpDyCorr[iPhi]; | |
581 | TMatrixF &mDzCorr = *fLookUpDzCorr[iPhi]; | |
582 | ||
583 | for (Int_t ir=0; ir<fNR; ++ir){ | |
584 | for (Int_t iz=0; iz<fNZ; ++iz){ | |
585 | mDxCorr(ir,iz) = -1000.; | |
586 | mDyCorr(ir,iz) = -1000.; | |
587 | mDzCorr(ir,iz) = -1000.; | |
588 | } | |
589 | } | |
590 | } | |
591 | ||
592 | // get interplolated corrections on standard grid | |
593 | for (Int_t iPhi=0; iPhi<fNPhi; ++iPhi){ | |
594 | Double_t phi=fLimitsPhi(iPhi); | |
595 | TMatrixF &mDxDist = *fLookUpDxDist[iPhi]; | |
596 | TMatrixF &mDyDist = *fLookUpDyDist[iPhi]; | |
597 | TMatrixF &mDzDist = *fLookUpDzDist[iPhi]; | |
598 | ||
599 | for (Int_t ir=0; ir<fNR; ++ir){ | |
600 | Double_t r=fLimitsR(ir); | |
601 | x[0]=r * TMath::Cos(phi); | |
602 | x[1]=r * TMath::Sin(phi); | |
603 | ||
604 | for (Int_t iz=0; iz<fNZ; ++iz){ | |
605 | Double_t z=fLimitsZ(iz); | |
606 | x[2]=z; | |
607 | ||
608 | //TODO: change hardcoded value for r>133.? | |
609 | Int_t roc=TMath::Nint(phi*TMath::RadToDeg()/20.)%18; | |
610 | if (r>133.) roc+=36; | |
611 | if (z<0) roc+=18; | |
612 | ||
613 | dx[0] = mDxDist(ir,iz); | |
614 | dx[1] = mDyDist(ir,iz); | |
615 | dx[2] = mDzDist(ir,iz); | |
616 | ||
617 | xd[0] = x[0]+dx[0]; | |
618 | xd[1] = x[1]+dx[1]; | |
619 | xd[2] = x[2]+dx[2]; | |
620 | ||
621 | const Double_t phid = TVector2::Phi_0_2pi(TMath::ATan2(xd[1],xd[0])); | |
622 | const Double_t rd = TMath::Sqrt(xd[0]*xd[0] + xd[1]*xd[1]); | |
623 | const Double_t zd = xd[2]; | |
624 | ||
625 | Int_t ilow = 0, jlow = 0, klow = 0 ; | |
626 | ||
627 | Search( fLimitsR.GetNrows(), fLimitsR.GetMatrixArray(), rd, ilow ) ; | |
628 | Search( fLimitsZ.GetNrows(), fLimitsZ.GetMatrixArray(), zd, jlow ) ; | |
629 | Search( fLimitsPhi.GetNrows(), fLimitsPhi.GetMatrixArray(), phid, klow ) ; | |
630 | ||
631 | if ( ilow < 0 ) ilow = 0 ; // check if out of range | |
632 | if ( jlow < 0 ) jlow = 0 ; | |
633 | if ( klow < 0 ) klow = 0 ; | |
634 | if ( ilow >= fLimitsR.GetNrows()) ilow = fLimitsR.GetNrows() - 1; | |
635 | if ( jlow >= fLimitsZ.GetNrows()) jlow = fLimitsZ.GetNrows() - 1; | |
636 | if ( klow >= fLimitsPhi.GetNrows()) klow = fLimitsPhi.GetNrows() - 1; | |
637 | ||
638 | const Double_t phiRef = fLimitsPhi[klow]; | |
639 | const Double_t rRef = fLimitsR[ilow]; | |
640 | const Double_t zRef = fLimitsZ[jlow]; | |
641 | ||
642 | TMatrixF &mDxCorr = *fLookUpDxCorr[klow]; | |
643 | if ( mDxCorr(ilow, jlow) > -1000. ) continue; | |
644 | TMatrixF &mDyCorr = *fLookUpDyCorr[klow]; | |
645 | TMatrixF &mDzCorr = *fLookUpDzCorr[klow]; | |
646 | ||
647 | xref[0]= rRef * TMath::Cos(phiRef); | |
648 | xref[1]= rRef * TMath::Sin(phiRef); | |
649 | xref[2]= zRef; | |
650 | ||
651 | FindClosestPosition(ir,iz,iPhi, xref, x2); | |
652 | ||
653 | GetDistortion(x2,roc,dx); | |
654 | ||
655 | mDxCorr(ilow, jlow) = -dx[0]; | |
656 | mDyCorr(ilow, jlow) = -dx[1]; | |
657 | mDzCorr(ilow, jlow) = -dx[2]; | |
658 | ||
e802250c | 659 | // printf("%3d %3d %3d\n",iPhi, ir, iz); |
660 | // printf("%3d %3d %3d\n",klow, ilow, jlow); | |
661 | // printf("x2: %.5f %.5f %.5f\n", x2[0], x2[1], x2[2]); | |
662 | // printf("x2d: %.5f %.5f %.5f\n", x2[0]+dx[0], x2[1]+dx[1], x2[2]+dx[2]); | |
663 | // printf("xref: %.5f %.5f %.5f\n", xref[0], xref[1], xref[2]); | |
664 | // printf("xrd: %.5f %.5f %.5f\n", x2[0]+dx[0]-xref[0], x2[1]+dx[1]-xref[1], x2[2]+dx[2]-xref[2]); | |
665 | // printf("phid: %.5f %.5f %.5f\n", phid,rd,zd); | |
666 | // printf("phir: %.5f %.5f %.5f\n", phiRef,rRef,zRef); | |
667 | // printf("\n"); | |
fd245273 | 668 | } |
669 | } | |
670 | } | |
671 | ||
672 | // fill remaining empty bins | |
673 | // The last ein first phi bin entries must be identical, fill those first | |
674 | { | |
675 | TMatrixF &mDxCorr = *fLookUpDxCorr[0]; | |
676 | TMatrixF &mDyCorr = *fLookUpDyCorr[0]; | |
677 | TMatrixF &mDzCorr = *fLookUpDzCorr[0]; | |
678 | ||
679 | TMatrixF &mDxCorr2 = *fLookUpDxCorr[fNPhi-1]; | |
680 | TMatrixF &mDyCorr2 = *fLookUpDyCorr[fNPhi-1]; | |
681 | TMatrixF &mDzCorr2 = *fLookUpDzCorr[fNPhi-1]; | |
682 | ||
683 | for (Int_t ir=0; ir<fNR; ++ir){ | |
684 | for (Int_t iz=0; iz<fNZ; ++iz){ | |
685 | mDxCorr2(ir,iz) = mDxCorr(ir,iz); | |
686 | mDyCorr2(ir,iz) = mDyCorr(ir,iz); | |
687 | mDzCorr2(ir,iz) = mDzCorr(ir,iz); | |
688 | } | |
689 | } | |
690 | } | |
691 | ||
692 | for (Int_t iPhi=0; iPhi<fNPhi; ++iPhi){ | |
693 | TMatrixF &mDxCorr = *fLookUpDxCorr[iPhi]; | |
694 | TMatrixF &mDyCorr = *fLookUpDyCorr[iPhi]; | |
695 | TMatrixF &mDzCorr = *fLookUpDzCorr[iPhi]; | |
696 | ||
697 | Double_t phi=fLimitsPhi(iPhi); | |
698 | for (Int_t ir=0; ir<fNR; ++ir){ | |
699 | Double_t r=fLimitsR(ir); | |
700 | x[0]=r * TMath::Cos(phi); | |
701 | x[1]=r * TMath::Sin(phi); | |
702 | ||
703 | for (Int_t iz=0; iz<fNZ; ++iz){ | |
704 | if (mDxCorr(ir,iz) > -999.) continue; | |
705 | ||
706 | Double_t z=fLimitsZ(iz); | |
707 | x[2]=z; | |
708 | ||
709 | //TODO: change hardcoded value for r>133.? | |
710 | Int_t roc=TMath::Nint(phi*TMath::RadToDeg()/20.)%18; | |
711 | if (r>133.) roc+=36; | |
712 | if (z<0) roc+=18; | |
713 | ||
714 | // get last point | |
715 | dx[0] = mDxCorr(ir,iz-1); | |
716 | dx[1] = mDyCorr(ir,iz-1); | |
717 | dx[2] = mDzCorr(ir,iz-1); | |
718 | ||
719 | xd[0] = x[0]+dx[0]; | |
720 | xd[1] = x[1]+dx[1]; | |
721 | xd[2] = x[2]+dx[2]; | |
722 | ||
723 | // get distorted point | |
724 | const Double_t phid = TVector2::Phi_0_2pi(TMath::ATan2(xd[1],xd[0])); | |
725 | const Double_t rd = TMath::Sqrt(xd[0]*xd[0] + xd[1]*xd[1]); | |
726 | const Double_t zd = xd[2]; | |
727 | ||
728 | Int_t ilow = 0, jlow = 0, klow = 0 ; | |
729 | ||
730 | Search( fLimitsR.GetNrows(), fLimitsR.GetMatrixArray(), rd, ilow ) ; | |
731 | Search( fLimitsZ.GetNrows(), fLimitsZ.GetMatrixArray(), zd, jlow ) ; | |
732 | Search( fLimitsPhi.GetNrows(), fLimitsPhi.GetMatrixArray(), phid, klow ) ; | |
733 | ||
734 | if ( ilow < 0 ) ilow = 0 ; // check if out of range | |
735 | if ( jlow < 0 ) jlow = 0 ; | |
736 | if ( klow < 0 ) klow = 0 ; | |
737 | if ( ilow >= fLimitsR.GetNrows()) ilow = fLimitsR.GetNrows() - 1; | |
738 | if ( jlow >= fLimitsZ.GetNrows()) jlow = fLimitsZ.GetNrows() - 1; | |
739 | if ( klow >= fLimitsPhi.GetNrows()) klow = fLimitsPhi.GetNrows() - 1; | |
740 | ||
741 | FindClosestPosition(ilow,jlow,klow, x, x2); | |
742 | ||
743 | GetDistortion(x2,roc,dx); | |
744 | ||
745 | mDxCorr(ir, iz) = -dx[0]; | |
746 | mDyCorr(ir, iz) = -dx[1]; | |
747 | mDzCorr(ir, iz) = -dx[2]; | |
748 | } | |
749 | } | |
750 | } | |
751 | ||
752 | } | |
753 | ||
754 | //_________________________________________________________________________________________ | |
755 | void AliTPCCorrectionLookupTable::FindClosestPosition(const Int_t binR, const Int_t binZ, const Int_t binPhi, | |
756 | const Float_t xref[3], Float_t xret[3]) | |
757 | { | |
758 | // | |
759 | // | |
760 | // | |
761 | ||
762 | // static TLinearFitter fitx(2,"pol2"); | |
763 | // static TLinearFitter fity(2,"pol2"); | |
764 | // static TLinearFitter fitz(2,"pol2"); | |
765 | static TLinearFitter fitx(4,"hyp3"); | |
766 | static TLinearFitter fity(4,"hyp3"); | |
767 | static TLinearFitter fitz(4,"hyp3"); | |
768 | fitx.ClearPoints(); | |
769 | fity.ClearPoints(); | |
770 | fitz.ClearPoints(); | |
771 | ||
772 | const Int_t nPoints=3; | |
773 | Int_t counter=0; | |
774 | Int_t rMin=binR; | |
775 | Int_t zMin=binZ; | |
776 | Int_t phiMin=binPhi; | |
777 | ||
778 | counter=nPoints/2; | |
779 | while (rMin>0 && counter--) --rMin; | |
780 | counter=nPoints/2; | |
781 | while (zMin>0 && counter--) --zMin; | |
782 | counter=nPoints/2; | |
783 | while (phiMin>0 && counter--) --phiMin; | |
784 | ||
785 | Int_t rMax = rMin +nPoints; | |
786 | Int_t zMax = zMin +nPoints; | |
787 | Int_t phiMax = phiMin+nPoints; | |
788 | ||
789 | while (rMax>=fNR) {--rMin; --rMax;} | |
790 | while (zMax>=fNZ) {--zMin; --zMax;} | |
791 | while (phiMax>=fNPhi) {--phiMin; --phiMax;} | |
792 | ||
793 | Float_t x[3] = {0.,0.,0.}; | |
794 | Double_t xd[3] = {0.,0.,0.}; | |
795 | Float_t dx[3] = {0.,0.,0.}; | |
796 | ||
797 | for (Int_t iPhi=phiMin; iPhi<phiMax; ++iPhi) { | |
798 | TMatrixF &mDxDist = *fLookUpDxDist[iPhi]; | |
799 | TMatrixF &mDyDist = *fLookUpDyDist[iPhi]; | |
800 | TMatrixF &mDzDist = *fLookUpDzDist[iPhi]; | |
801 | ||
802 | Double_t phi=fLimitsPhi(iPhi); | |
803 | for (Int_t ir=rMin; ir<rMax; ++ir){ | |
804 | Double_t r=fLimitsR(ir); | |
805 | x[0]=r * TMath::Cos(phi); | |
806 | x[1]=r * TMath::Sin(phi); | |
807 | ||
808 | for (Int_t iz=zMin; iz<zMax; ++iz){ | |
809 | Double_t z=fLimitsZ(iz); | |
810 | x[2]=z; | |
811 | ||
812 | dx[0] = mDxDist(ir,iz); | |
813 | dx[1] = mDyDist(ir,iz); | |
814 | dx[2] = mDzDist(ir,iz); | |
815 | ||
816 | xd[0] = x[0]+dx[0]; | |
817 | xd[1] = x[1]+dx[1]; | |
818 | xd[2] = x[2]+dx[2]; | |
819 | ||
820 | fitx.AddPoint(xd, x[0]); | |
821 | fity.AddPoint(xd, x[1]); | |
822 | fitz.AddPoint(xd, x[2]); | |
823 | } | |
824 | } | |
825 | } | |
826 | ||
827 | fitx.Eval(); | |
828 | fity.Eval(); | |
829 | fitz.Eval(); | |
830 | xret[0] = fitx.GetParameter(0) + fitx.GetParameter(1)*xref[0] | |
831 | + fitx.GetParameter(2)*xref[1] | |
832 | + fitx.GetParameter(3)*xref[2]; | |
833 | xret[1] = fity.GetParameter(0) + fity.GetParameter(1)*xref[0] | |
834 | + fity.GetParameter(2)*xref[1] | |
835 | + fity.GetParameter(3)*xref[2]; | |
836 | xret[2] = fitz.GetParameter(0) + fitz.GetParameter(1)*xref[0] | |
837 | + fitz.GetParameter(2)*xref[1] | |
838 | + fitz.GetParameter(3)*xref[2]; | |
839 | // xret[0] = fitx.GetParameter(0) + fitx.GetParameter(1)*xref[0] + fitx.GetParameter(2)*xref[0]*xref[0]; | |
840 | // xret[1] = fity.GetParameter(0) + fity.GetParameter(1)*xref[1] + fity.GetParameter(2)*xref[1]*xref[1]; | |
841 | // xret[2] = fitz.GetParameter(0) + fitz.GetParameter(1)*xref[2] + fitz.GetParameter(2)*xref[2]*xref[2]; | |
842 | } | |
843 |