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37c55dc0 | 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 | **************************************************************************/ | |
0d0e6995 | 15 | /* $Id$ */ |
c2fc1258 | 16 | /** @file AliFMDReconstructor.cxx |
17 | @author Christian Holm Christensen <cholm@nbi.dk> | |
18 | @date Mon Mar 27 12:47:09 2006 | |
19 | @brief FMD reconstruction | |
20 | */ | |
4347b38f | 21 | //____________________________________________________________________ |
42403906 | 22 | // |
02a27b50 | 23 | // This is a class that constructs AliFMDRecPoint objects from of Digits |
6169f936 | 24 | // This class reads either digits from a TClonesArray or raw data from |
4347b38f | 25 | // a DDL file (or similar), and stores the read ADC counts in an |
6169f936 | 26 | // internal cache (fAdcs). The rec-points are made via the naiive |
27 | // method. | |
4347b38f | 28 | // |
37c55dc0 | 29 | //-- Authors: Evgeny Karpechev(INR) and Alla Maevsksia |
4347b38f | 30 | // Latest changes by Christian Holm Christensen <cholm@nbi.dk> |
31 | // | |
32 | // | |
33 | //____________________________________________________________________ | |
37c55dc0 | 34 | |
f95a63c4 | 35 | // #include <AliLog.h> // ALILOG_H |
6169f936 | 36 | // #include <AliRun.h> // ALIRUN_H |
f95a63c4 | 37 | #include "AliFMDDebug.h" |
56b1929b | 38 | #include <AliRunLoader.h> // ALIRUNLOADER_H |
56b1929b | 39 | #include <AliHeader.h> // ALIHEADER_H |
56b1929b | 40 | #include <AliGenEventHeader.h> // ALIGENEVENTHEADER_H |
1a1fdef7 | 41 | #include "AliFMDGeometry.h" // ALIFMDGEOMETRY_H |
42 | #include "AliFMDParameters.h" // ALIFMDPARAMETERS_H | |
56b1929b | 43 | #include "AliFMDDigit.h" // ALIFMDDIGIT_H |
44 | #include "AliFMDReconstructor.h" // ALIFMDRECONSTRUCTOR_H | |
56b1929b | 45 | #include "AliFMDRawReader.h" // ALIFMDRAWREADER_H |
bf000c32 | 46 | #include "AliFMDRecPoint.h" // ALIFMDMULTNAIIVE_H |
a3537838 | 47 | #include "AliESD.h" // ALIESD_H |
8f6ee336 | 48 | #include <AliESDFMD.h> // ALIESDFMD_H |
9684be2f | 49 | #include <TH1.h> |
50 | #include <TH2.h> | |
51 | #include <TFile.h> | |
02a27b50 | 52 | class AliRawReader; |
4347b38f | 53 | |
54 | //____________________________________________________________________ | |
925e6570 | 55 | ClassImp(AliFMDReconstructor) |
1a1fdef7 | 56 | #if 0 |
57 | ; // This is here to keep Emacs for indenting the next line | |
58 | #endif | |
37c55dc0 | 59 | |
4347b38f | 60 | //____________________________________________________________________ |
61 | AliFMDReconstructor::AliFMDReconstructor() | |
62 | : AliReconstructor(), | |
e9fd1e20 | 63 | fMult(0x0), |
64 | fNMult(0), | |
65 | fTreeR(0x0), | |
66 | fCurrentVertex(0), | |
67 | fESDObj(0x0), | |
9684be2f | 68 | fNoiseFactor(0), |
69 | fAngleCorrect(kTRUE), | |
70 | fVertexType(kNoVertex), | |
71 | fRunLoader(0x0), | |
72 | fESD(0x0), | |
73 | fDiagnostics(kFALSE), | |
74 | fDiagStep1(0), | |
75 | fDiagStep2(0), | |
76 | fDiagStep3(0), | |
77 | fDiagStep4(0), | |
78 | fDiagAll(0) | |
4347b38f | 79 | { |
8f6ee336 | 80 | // Make a new FMD reconstructor object - default CTOR. |
a9579262 | 81 | SetNoiseFactor(); |
82 | SetAngleCorrect(); | |
4347b38f | 83 | } |
84 | ||
42403906 | 85 | |
86 | //____________________________________________________________________ | |
87 | AliFMDReconstructor::AliFMDReconstructor(const AliFMDReconstructor& other) | |
8f6ee336 | 88 | : AliReconstructor(), |
89 | fMult(other.fMult), | |
e9fd1e20 | 90 | fNMult(other.fNMult), |
91 | fTreeR(other.fTreeR), | |
92 | fCurrentVertex(other.fCurrentVertex), | |
93 | fESDObj(other.fESDObj), | |
a9579262 | 94 | fNoiseFactor(other.fNoiseFactor), |
9684be2f | 95 | fAngleCorrect(other.fAngleCorrect), |
96 | fVertexType(other.fVertexType), | |
97 | fRunLoader(other.fRunLoader), | |
98 | fESD(other.fESD), | |
99 | fDiagnostics(other.fDiagnostics), | |
100 | fDiagStep1(other.fDiagStep1), | |
101 | fDiagStep2(other.fDiagStep2), | |
102 | fDiagStep3(other.fDiagStep3), | |
103 | fDiagStep4(other.fDiagStep4), | |
104 | fDiagAll(other.fDiagAll) | |
42403906 | 105 | { |
56b1929b | 106 | // Copy constructor |
42403906 | 107 | } |
108 | ||
109 | ||
110 | //____________________________________________________________________ | |
111 | AliFMDReconstructor& | |
112 | AliFMDReconstructor::operator=(const AliFMDReconstructor& other) | |
113 | { | |
56b1929b | 114 | // Assignment operator |
a9579262 | 115 | fMult = other.fMult; |
116 | fNMult = other.fNMult; | |
117 | fTreeR = other.fTreeR; | |
e9fd1e20 | 118 | fCurrentVertex = other.fCurrentVertex; |
a9579262 | 119 | fESDObj = other.fESDObj; |
a9579262 | 120 | fNoiseFactor = other.fNoiseFactor; |
121 | fAngleCorrect = other.fAngleCorrect; | |
9684be2f | 122 | fVertexType = other.fVertexType; |
123 | fRunLoader = other.fRunLoader; | |
124 | fESD = other.fESD; | |
125 | fDiagnostics = other.fDiagnostics; | |
126 | fDiagStep1 = other.fDiagStep1; | |
127 | fDiagStep2 = other.fDiagStep2; | |
128 | fDiagStep3 = other.fDiagStep3; | |
129 | fDiagStep4 = other.fDiagStep4; | |
130 | fDiagAll = other.fDiagAll; | |
42403906 | 131 | return *this; |
132 | } | |
56b1929b | 133 | |
134 | //____________________________________________________________________ | |
135 | AliFMDReconstructor::~AliFMDReconstructor() | |
136 | { | |
137 | // Destructor | |
8f6ee336 | 138 | if (fMult) fMult->Delete(); |
139 | if (fMult) delete fMult; | |
140 | if (fESDObj) delete fESDObj; | |
56b1929b | 141 | } |
4347b38f | 142 | |
143 | //____________________________________________________________________ | |
144 | void | |
1a1fdef7 | 145 | AliFMDReconstructor::Init(AliRunLoader* runLoader) |
146 | { | |
147 | // Initialize the reconstructor | |
f95a63c4 | 148 | AliFMDDebug(2, ("Init called with runloader 0x%x", runLoader)); |
bf000c32 | 149 | // Initialize the geometry |
9b48326f | 150 | AliFMDGeometry* geom = AliFMDGeometry::Instance(); |
151 | geom->Init(); | |
152 | geom->InitTransformations(); | |
153 | ||
154 | // Initialize the parameters | |
155 | AliFMDParameters* param = AliFMDParameters::Instance(); | |
156 | param->Init(); | |
bf000c32 | 157 | |
8f6ee336 | 158 | // Current vertex position |
1a1fdef7 | 159 | fCurrentVertex = 0; |
8f6ee336 | 160 | // Create array of reconstructed strip multiplicities |
bf000c32 | 161 | fMult = new TClonesArray("AliFMDRecPoint", 51200); |
8f6ee336 | 162 | // Create ESD output object |
163 | fESDObj = new AliESDFMD; | |
164 | ||
165 | // Check that we have a run loader | |
9684be2f | 166 | fRunLoader = runLoader; |
8f6ee336 | 167 | |
9684be2f | 168 | // Check if we need diagnostics histograms |
169 | if (!fDiagnostics) return; | |
170 | fDiagStep1 = new TH2I("diagStep1", "Read ADC vs. Noise surpressed ADC", | |
171 | 1024, -.5, 1023.5, 1024, -.5, 1023.5); | |
172 | fDiagStep1->SetDirectory(0); | |
173 | fDiagStep1->GetXaxis()->SetTitle("ADC (read)"); | |
174 | fDiagStep1->GetYaxis()->SetTitle(Form("ADC (noise surpressed %4.f)", | |
175 | fNoiseFactor)); | |
176 | fDiagStep2 = new TH2F("diagStep2", "ADC vs Edep deduced", | |
177 | 1024, -.5, 1023.5, 100, 0, 2); | |
178 | fDiagStep2->SetDirectory(0); | |
179 | fDiagStep2->GetXaxis()->SetTitle("ADC (noise surpressed)"); | |
180 | fDiagStep2->GetYaxis()->SetTitle("#Delta E [GeV]"); | |
181 | fDiagStep3 = new TH2F("diagStep3", "Edep vs Edep path corrected", | |
182 | 100, 0., 2., 100, 0., 2.); | |
183 | fDiagStep3->SetDirectory(0); | |
184 | fDiagStep3->GetXaxis()->SetTitle("#Delta E [GeV]"); | |
185 | fDiagStep3->GetYaxis()->SetTitle("#Delta E/#Delta x #times #delta x [GeV]"); | |
186 | fDiagStep4 = new TH2F("diagStep4", "Edep vs Multiplicity deduced", | |
187 | 100, 0., 2., 100, -.1, 19.9); | |
188 | fDiagStep4->SetDirectory(0); | |
189 | fDiagStep4->GetXaxis()->SetTitle("#Delta E/#Delta x #times #delta x [GeV]"); | |
190 | fDiagStep4->GetYaxis()->SetTitle("Multiplicity"); | |
191 | fDiagAll = new TH2F("diagAll", "Read ADC vs Multiplicity deduced", | |
192 | 1024, -.5, 1023.5, 100, -.1, 19.9); | |
193 | fDiagAll->SetDirectory(0); | |
194 | fDiagAll->GetXaxis()->SetTitle("ADC (read)"); | |
195 | fDiagAll->GetYaxis()->SetTitle("Multiplicity"); | |
4347b38f | 196 | } |
dc8af42e | 197 | |
4347b38f | 198 | //____________________________________________________________________ |
199 | void | |
1a1fdef7 | 200 | AliFMDReconstructor::ConvertDigits(AliRawReader* reader, |
201 | TTree* digitsTree) const | |
202 | { | |
203 | // Convert Raw digits to AliFMDDigit's in a tree | |
f95a63c4 | 204 | AliFMDDebug(2, ("Reading raw data into digits tree")); |
1a1fdef7 | 205 | AliFMDRawReader rawRead(reader, digitsTree); |
206 | // rawRead.SetSampleRate(fFMD->GetSampleRate()); | |
207 | rawRead.Exec(); | |
4347b38f | 208 | } |
209 | ||
4347b38f | 210 | //____________________________________________________________________ |
211 | void | |
9684be2f | 212 | AliFMDReconstructor::GetVertex() const |
4347b38f | 213 | { |
9684be2f | 214 | fVertexType = kNoVertex; |
215 | fCurrentVertex = 0; | |
a3537838 | 216 | if (fESD) { |
8f6ee336 | 217 | const AliESDVertex* vertex = fESD->GetVertex(); |
218 | if (vertex) { | |
f95a63c4 | 219 | AliFMDDebug(2, ("Got vertex from ESD: %f", vertex->GetZv())); |
8f6ee336 | 220 | fCurrentVertex = vertex->GetZv(); |
9684be2f | 221 | fVertexType = kESDVertex; |
222 | return; | |
8f6ee336 | 223 | } |
a3537838 | 224 | } |
9684be2f | 225 | // Check if we can get the header tree |
226 | AliGenEventHeader* genHeader = ((!fRunLoader || | |
227 | !fRunLoader->GetHeader() || | |
228 | !fRunLoader->GetHeader()->GenEventHeader()) | |
229 | ? 0 | |
230 | : fRunLoader->GetHeader()->GenEventHeader()); | |
231 | if (genHeader) { | |
232 | TArrayF vtx; | |
233 | genHeader->PrimaryVertex(vtx); | |
234 | fCurrentVertex = vtx[2]; | |
235 | fVertexType = kGenVertex; | |
f95a63c4 | 236 | AliFMDDebug(2, ("Got vertex from generator: %f", fCurrentVertex)); |
9684be2f | 237 | AliWarning("Got vertex from generator event header"); |
238 | return; | |
239 | } | |
240 | AliWarning("Didn't get any vertex from ESD or generator"); | |
241 | } | |
242 | ||
243 | ||
244 | //____________________________________________________________________ | |
245 | void | |
246 | AliFMDReconstructor::Reconstruct(TTree* digitsTree, | |
247 | TTree* clusterTree) const | |
248 | { | |
249 | // Reconstruct event from digits in tree | |
250 | // Get the FMD branch holding the digits. | |
251 | // FIXME: The vertex may not be known yet, so we may have to move | |
252 | // some of this to FillESD. | |
f95a63c4 | 253 | AliFMDDebug(2, ("Reconstructing from digits in a tree")); |
9684be2f | 254 | GetVertex(); |
255 | ||
1a1fdef7 | 256 | TBranch *digitBranch = digitsTree->GetBranch("FMD"); |
4347b38f | 257 | if (!digitBranch) { |
1a1fdef7 | 258 | Error("Exec", "No digit branch for the FMD found"); |
259 | return; | |
4347b38f | 260 | } |
0abe7182 | 261 | TClonesArray* digits = new TClonesArray("AliFMDDigit"); |
1a1fdef7 | 262 | digitBranch->SetAddress(&digits); |
4347b38f | 263 | |
8f6ee336 | 264 | if (fMult) fMult->Clear(); |
265 | if (fESDObj) fESDObj->Clear(); | |
266 | ||
267 | fNMult = 0; | |
268 | fTreeR = clusterTree; | |
269 | fTreeR->Branch("FMD", &fMult); | |
270 | ||
f95a63c4 | 271 | AliFMDDebug(5, ("Getting entry 0 from digit branch")); |
1a1fdef7 | 272 | digitBranch->GetEntry(0); |
273 | ||
f95a63c4 | 274 | AliFMDDebug(5, ("Processing digits")); |
e802be3e | 275 | ProcessDigits(digits); |
276 | ||
8f6ee336 | 277 | Int_t written = clusterTree->Fill(); |
f95a63c4 | 278 | AliFMDDebug(10, ("Filled %d bytes into cluster tree", written)); |
0abe7182 | 279 | digits->Delete(); |
280 | delete digits; | |
4347b38f | 281 | } |
1a1fdef7 | 282 | |
8f6ee336 | 283 | |
4347b38f | 284 | //____________________________________________________________________ |
e802be3e | 285 | void |
286 | AliFMDReconstructor::ProcessDigits(TClonesArray* digits) const | |
4347b38f | 287 | { |
69b696b9 | 288 | // For each digit, find the pseudo rapdity, azimuthal angle, and |
289 | // number of corrected ADC counts, and pass it on to the algorithms | |
290 | // used. | |
e802be3e | 291 | Int_t nDigits = digits->GetEntries(); |
f95a63c4 | 292 | AliFMDDebug(1, ("Got %d digits", nDigits)); |
a9579262 | 293 | fESDObj->SetNoiseFactor(fNoiseFactor); |
294 | fESDObj->SetAngleCorrected(fAngleCorrect); | |
e802be3e | 295 | for (Int_t i = 0; i < nDigits; i++) { |
296 | AliFMDDigit* digit = static_cast<AliFMDDigit*>(digits->At(i)); | |
8f6ee336 | 297 | AliFMDParameters* param = AliFMDParameters::Instance(); |
298 | // Check that the strip is not marked as dead | |
299 | if (param->IsDead(digit->Detector(), digit->Ring(), | |
15b17c89 | 300 | digit->Sector(), digit->Strip())) { |
f95a63c4 | 301 | AliFMDDebug(10, ("FMD%d%c[%2d,%3d] is dead", digit->Detector(), |
15b17c89 | 302 | digit->Ring(), digit->Sector(), digit->Strip())); |
303 | continue; | |
304 | } | |
8f6ee336 | 305 | |
306 | // digit->Print(); | |
307 | // Get eta and phi | |
308 | Float_t eta, phi; | |
309 | PhysicalCoordinates(digit, eta, phi); | |
4347b38f | 310 | |
8f6ee336 | 311 | // Substract pedestal. |
e802be3e | 312 | UShort_t counts = SubtractPedestal(digit); |
4347b38f | 313 | |
8f6ee336 | 314 | // Gain match digits. |
315 | Double_t edep = Adc2Energy(digit, eta, counts); | |
316 | ||
317 | // Make rough multiplicity | |
318 | Double_t mult = Energy2Multiplicity(digit, edep); | |
319 | ||
f95a63c4 | 320 | AliFMDDebug(10, ("FMD%d%c[%2d,%3d]: " |
8f6ee336 | 321 | "ADC: %d, Counts: %d, Energy: %f, Mult: %f", |
322 | digit->Detector(), digit->Ring(), digit->Sector(), | |
323 | digit->Strip(), digit->Counts(), counts, edep, mult)); | |
324 | ||
325 | // Create a `RecPoint' on the output branch. | |
bf000c32 | 326 | AliFMDRecPoint* m = |
327 | new ((*fMult)[fNMult]) AliFMDRecPoint(digit->Detector(), | |
328 | digit->Ring(), | |
329 | digit->Sector(), | |
330 | digit->Strip(), | |
331 | eta, phi, | |
332 | edep, mult); | |
8f6ee336 | 333 | (void)m; // Suppress warnings about unused variables. |
334 | fNMult++; | |
335 | ||
336 | fESDObj->SetMultiplicity(digit->Detector(), digit->Ring(), | |
337 | digit->Sector(), digit->Strip(), mult); | |
338 | fESDObj->SetEta(digit->Detector(), digit->Ring(), | |
339 | digit->Sector(), digit->Strip(), eta); | |
9684be2f | 340 | |
341 | if (fDiagAll) fDiagAll->Fill(digit->Counts(), mult); | |
4347b38f | 342 | } |
4347b38f | 343 | } |
8f6ee336 | 344 | |
1a1fdef7 | 345 | //____________________________________________________________________ |
346 | UShort_t | |
347 | AliFMDReconstructor::SubtractPedestal(AliFMDDigit* digit) const | |
348 | { | |
349 | // Member function to subtract the pedestal from a digit | |
350 | // This implementation does nothing, but a derived class could over | |
351 | // load this to subtract a pedestal that was given in a database or | |
352 | // something like that. | |
353 | ||
8f6ee336 | 354 | Int_t counts = 0; |
9684be2f | 355 | Int_t adc = 0; |
8f6ee336 | 356 | AliFMDParameters* param = AliFMDParameters::Instance(); |
a9579262 | 357 | Float_t ped = param->GetPedestal(digit->Detector(), |
8f6ee336 | 358 | digit->Ring(), |
359 | digit->Sector(), | |
360 | digit->Strip()); | |
a9579262 | 361 | Float_t noise = param->GetPedestalWidth(digit->Detector(), |
362 | digit->Ring(), | |
363 | digit->Sector(), | |
364 | digit->Strip()); | |
f95a63c4 | 365 | AliFMDDebug(15, ("Subtracting pedestal %f from signal %d", |
a9579262 | 366 | ped, digit->Counts())); |
9684be2f | 367 | if (digit->Count3() > 0) adc = digit->Count3(); |
368 | else if (digit->Count2() > 0) adc = digit->Count2(); | |
369 | else adc = digit->Count1(); | |
370 | counts = TMath::Max(Int_t(adc - ped), 0); | |
a9579262 | 371 | if (counts < noise * fNoiseFactor) counts = 0; |
f95a63c4 | 372 | if (counts > 0) AliFMDDebug(15, ("Got a hit strip")); |
9684be2f | 373 | if (fDiagStep1) fDiagStep1->Fill(adc, counts); |
8f6ee336 | 374 | |
1a1fdef7 | 375 | return UShort_t(counts); |
376 | } | |
377 | ||
8f6ee336 | 378 | //____________________________________________________________________ |
379 | Float_t | |
380 | AliFMDReconstructor::Adc2Energy(AliFMDDigit* digit, | |
a9579262 | 381 | Float_t eta, |
8f6ee336 | 382 | UShort_t count) const |
383 | { | |
384 | // Converts number of ADC counts to energy deposited. | |
385 | // Note, that this member function can be overloaded by derived | |
386 | // classes to do strip-specific look-ups in databases or the like, | |
387 | // to find the proper gain for a strip. | |
388 | // | |
389 | // In this simple version, we calculate the energy deposited as | |
390 | // | |
391 | // EnergyDeposited = cos(theta) * gain * count | |
392 | // | |
393 | // where | |
394 | // | |
395 | // Pre_amp_MIP_Range | |
396 | // gain = ----------------- * Energy_deposited_per_MIP | |
397 | // ADC_channel_size | |
398 | // | |
399 | // is constant and the same for all strips. | |
a9579262 | 400 | if (count <= 0) return 0; |
8f6ee336 | 401 | AliFMDParameters* param = AliFMDParameters::Instance(); |
402 | Float_t gain = param->GetPulseGain(digit->Detector(), | |
403 | digit->Ring(), | |
404 | digit->Sector(), | |
405 | digit->Strip()); | |
f95a63c4 | 406 | AliFMDDebug(15, ("Converting counts %d to energy via factor %f", |
8f6ee336 | 407 | count, gain)); |
a9579262 | 408 | |
409 | Double_t edep = count * gain; | |
9684be2f | 410 | if (fDiagStep2) fDiagStep2->Fill(count, edep); |
a9579262 | 411 | if (fAngleCorrect) { |
9684be2f | 412 | Double_t theta = 2 * TMath::ATan(TMath::Exp(-eta)); |
413 | Double_t corr = TMath::Abs(TMath::Cos(theta)); | |
414 | Double_t cedep = corr * edep; | |
f95a63c4 | 415 | AliFMDDebug(10, ("correcting for path %f * %f = %f (eta=%f, theta=%f)", |
9684be2f | 416 | edep, corr, cedep, eta, theta)); |
417 | if (fDiagStep3) fDiagStep3->Fill(edep, cedep); | |
418 | edep = cedep; | |
a9579262 | 419 | } |
8f6ee336 | 420 | return edep; |
421 | } | |
422 | ||
423 | //____________________________________________________________________ | |
424 | Float_t | |
425 | AliFMDReconstructor::Energy2Multiplicity(AliFMDDigit* /* digit */, | |
426 | Float_t edep) const | |
427 | { | |
428 | // Converts an energy signal to number of particles. | |
429 | // Note, that this member function can be overloaded by derived | |
430 | // classes to do strip-specific look-ups in databases or the like, | |
431 | // to find the proper gain for a strip. | |
432 | // | |
433 | // In this simple version, we calculate the multiplicity as | |
434 | // | |
435 | // multiplicity = Energy_deposited / Energy_deposited_per_MIP | |
436 | // | |
437 | // where | |
438 | // | |
439 | // Energy_deposited_per_MIP = 1.664 * SI_density * SI_thickness | |
440 | // | |
441 | // is constant and the same for all strips | |
442 | AliFMDParameters* param = AliFMDParameters::Instance(); | |
443 | Double_t edepMIP = param->GetEdepMip(); | |
444 | Float_t mult = edep / edepMIP; | |
445 | if (edep > 0) | |
f95a63c4 | 446 | AliFMDDebug(15, ("Translating energy %f to multiplicity via " |
8f6ee336 | 447 | "divider %f->%f", edep, edepMIP, mult)); |
9684be2f | 448 | if (fDiagStep4) fDiagStep4->Fill(edep, mult); |
8f6ee336 | 449 | return mult; |
450 | } | |
451 | ||
452 | //____________________________________________________________________ | |
453 | void | |
454 | AliFMDReconstructor::PhysicalCoordinates(AliFMDDigit* digit, | |
455 | Float_t& eta, | |
456 | Float_t& phi) const | |
457 | { | |
458 | // Get the eta and phi of a digit | |
459 | // | |
460 | // Get geometry. | |
9b48326f | 461 | AliFMDGeometry* geom = AliFMDGeometry::Instance(); |
bf000c32 | 462 | Double_t x, y, z, r, theta; |
9b48326f | 463 | geom->Detector2XYZ(digit->Detector(), digit->Ring(), digit->Sector(), |
bf000c32 | 464 | digit->Strip(), x, y, z); |
465 | // Correct for vertex offset. | |
466 | z += fCurrentVertex; | |
467 | phi = TMath::ATan2(y, x); | |
468 | r = TMath::Sqrt(y * y + x * x); | |
469 | theta = TMath::ATan2(r, z); | |
470 | eta = -TMath::Log(TMath::Tan(theta / 2)); | |
8f6ee336 | 471 | } |
472 | ||
473 | ||
474 | ||
4347b38f | 475 | //____________________________________________________________________ |
476 | void | |
1a1fdef7 | 477 | AliFMDReconstructor::FillESD(TTree* /* digitsTree */, |
478 | TTree* /* clusterTree */, | |
8f6ee336 | 479 | AliESD* esd) const |
121a60bd | 480 | { |
42403906 | 481 | // nothing to be done |
69b696b9 | 482 | // FIXME: The vertex may not be known when Reconstruct is executed, |
483 | // so we may have to move some of that member function here. | |
f95a63c4 | 484 | AliFMDDebug(2, ("Calling FillESD with two trees and one ESD")); |
8f6ee336 | 485 | // fESDObj->Print(); |
486 | ||
487 | if (esd) { | |
f95a63c4 | 488 | AliFMDDebug(2, ("Writing FMD data to ESD tree")); |
8f6ee336 | 489 | esd->SetFMDData(fESDObj); |
a3537838 | 490 | } |
9684be2f | 491 | |
492 | if (!fDiagnostics || !esd) return; | |
493 | static bool first = true; | |
31fd97b2 | 494 | Int_t evno = esd->GetEventNumberInFile(); // This is most likely NOT the event number you'd like to use. It has nothing to do with the 'real' event number. |
f95a63c4 | 495 | AliFMDDebug(1, ("Writing diagnostics histograms to FMD.Diag.root/%03d", |
9684be2f | 496 | evno)); |
497 | TFile f("FMD.Diag.root", (first ? "RECREATE" : "UPDATE")); | |
498 | first = false; | |
499 | f.cd(); | |
500 | TDirectory* d = f.mkdir(Form("%03d", evno), | |
501 | Form("Diagnostics histograms for event # %d", evno)); | |
502 | d->cd(); | |
503 | if (fDiagStep1) fDiagStep1->Write(); | |
504 | if (fDiagStep2) fDiagStep2->Write(); | |
505 | if (fDiagStep3) fDiagStep3->Write(); | |
506 | if (fDiagStep4) fDiagStep4->Write(); | |
507 | if (fDiagAll) fDiagAll->Write(); | |
508 | d->Write(); | |
509 | f.Write(); | |
510 | f.Close(); | |
511 | ||
512 | if (fDiagStep1) fDiagStep1->Reset(); | |
513 | if (fDiagStep2) fDiagStep2->Reset(); | |
514 | if (fDiagStep3) fDiagStep3->Reset(); | |
515 | if (fDiagStep4) fDiagStep4->Reset(); | |
516 | if (fDiagAll) fDiagAll->Reset(); | |
121a60bd | 517 | } |
518 | ||
54e415a8 | 519 | |
520 | //____________________________________________________________________ | |
521 | void | |
522 | AliFMDReconstructor::Reconstruct(AliRawReader*,TTree*) const | |
523 | { | |
524 | // Cannot be used. See member function with same name but with 2 | |
525 | // TTree arguments. Make sure you do local reconstrucion | |
f95a63c4 | 526 | AliFMDDebug(2, ("Calling FillESD with loader and tree")); |
54e415a8 | 527 | AliError("MayNotUse"); |
528 | } | |
529 | //____________________________________________________________________ | |
530 | void | |
531 | AliFMDReconstructor::Reconstruct(AliRunLoader*) const | |
532 | { | |
533 | // Cannot be used. See member function with same name but with 2 | |
534 | // TTree arguments. Make sure you do local reconstrucion | |
f95a63c4 | 535 | AliFMDDebug(2, ("Calling FillESD with loader")); |
54e415a8 | 536 | AliError("MayNotUse"); |
537 | } | |
538 | //____________________________________________________________________ | |
539 | void | |
540 | AliFMDReconstructor::Reconstruct(AliRunLoader*, AliRawReader*) const | |
541 | { | |
542 | // Cannot be used. See member function with same name but with 2 | |
543 | // TTree arguments. Make sure you do local reconstrucion | |
f95a63c4 | 544 | AliFMDDebug(2, ("Calling FillESD with loader and raw reader")); |
54e415a8 | 545 | AliError("MayNotUse"); |
546 | } | |
547 | //____________________________________________________________________ | |
548 | void | |
549 | AliFMDReconstructor::FillESD(AliRawReader*,TTree*,AliESD*) const | |
550 | { | |
551 | // Cannot be used. See member function with same name but with 2 | |
552 | // TTree arguments. Make sure you do local reconstrucion | |
f95a63c4 | 553 | AliFMDDebug(2, ("Calling FillESD with raw reader, tree, and ESD")); |
54e415a8 | 554 | AliError("MayNotUse"); |
555 | } | |
556 | //____________________________________________________________________ | |
557 | void | |
558 | AliFMDReconstructor::FillESD(AliRunLoader*,AliESD*) const | |
559 | { | |
560 | // Cannot be used. See member function with same name but with 2 | |
561 | // TTree arguments. Make sure you do local reconstrucion | |
f95a63c4 | 562 | AliFMDDebug(2, ("Calling FillESD with loader and ESD")); |
54e415a8 | 563 | AliError("MayNotUse"); |
564 | } | |
565 | //____________________________________________________________________ | |
566 | void | |
567 | AliFMDReconstructor::FillESD(AliRunLoader*,AliRawReader*,AliESD*) const | |
568 | { | |
569 | // Cannot be used. See member function with same name but with 2 | |
570 | // TTree arguments. Make sure you do local reconstrucion | |
f95a63c4 | 571 | AliFMDDebug(2, ("Calling FillESD with loader, raw reader, and ESD")); |
54e415a8 | 572 | AliError("MayNotUse"); |
573 | } | |
574 | ||
42403906 | 575 | //____________________________________________________________________ |
576 | // | |
577 | // EOF | |
578 | // |