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04366a57 | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-2003, 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 | // Implementation of the ITS clusterer V2 class // | |
17 | // // | |
18 | // Origin: Iouri Belikov, CERN, Jouri.Belikov@cern.ch // | |
d6d232ba | 19 | // Unfolding switch from AliITSRecoParam: D. Elia, INFN Bari // |
04366a57 | 20 | // // |
d6d232ba | 21 | //////////////////////////////////////////////////////////////////////////// |
04366a57 | 22 | |
04366a57 | 23 | |
66b89079 | 24 | #include <TGeoGlobalMagField.h> |
8d37cc87 | 25 | #include "AliITSCalibrationSPD.h" |
04366a57 | 26 | #include "AliITSClusterFinderV2SPD.h" |
00a7cc50 | 27 | #include "AliITSRecPoint.h" |
1f3e997f | 28 | #include "AliITSgeomTGeo.h" |
7d62fb64 | 29 | #include "AliITSDetTypeRec.h" |
d6d232ba | 30 | #include "AliITSReconstructor.h" |
04366a57 | 31 | #include "AliRawReader.h" |
32 | #include "AliITSRawStreamSPD.h" | |
04366a57 | 33 | #include <TClonesArray.h> |
04366a57 | 34 | #include "AliITSdigitSPD.h" |
ad7f2bfa | 35 | #include "AliITSFOSignalsSPD.h" |
01ef1bd4 | 36 | #include "AliITSRecPointContainer.h" |
66b89079 | 37 | #include "AliMagF.h" |
38 | #include "AliITSsegmentationSPD.h" | |
04366a57 | 39 | |
40 | ClassImp(AliITSClusterFinderV2SPD) | |
41 | ||
ad7f2bfa | 42 | //__________________________________________________________________________ |
5d2c2f86 | 43 | AliITSClusterFinderV2SPD::AliITSClusterFinderV2SPD(AliITSDetTypeRec* dettyp):AliITSClusterFinder(dettyp), |
1f3e997f | 44 | fLastSPD1(AliITSgeomTGeo::GetModuleIndex(2,1,1)-1), |
e56160b8 | 45 | fNySPD(256), |
46 | fNzSPD(160), | |
47 | fYpitchSPD(0.0050), | |
48 | fZ1pitchSPD(0.0425), | |
49 | fZ2pitchSPD(0.0625), | |
50 | fHwSPD(0.64), | |
51 | fHlSPD(3.48){ | |
04366a57 | 52 | |
53 | //Default constructor | |
04366a57 | 54 | |
04366a57 | 55 | fYSPD[0]=0.5*fYpitchSPD; |
56 | for (Int_t m=1; m<fNySPD; m++) fYSPD[m]=fYSPD[m-1]+fYpitchSPD; | |
57 | fZSPD[0]=fZ1pitchSPD; | |
58 | for (Int_t m=1; m<fNzSPD; m++) { | |
59 | Double_t dz=fZ1pitchSPD; | |
60 | if (m==31 || m==32 || m==63 || m==64 || m==95 || m==96 || | |
61 | m==127 || m==128) dz=fZ2pitchSPD; | |
62 | fZSPD[m]=fZSPD[m-1]+dz; | |
63 | } | |
64 | for (Int_t m=0; m<fNzSPD; m++) { | |
65 | Double_t dz=0.5*fZ1pitchSPD; | |
66 | if (m==31 || m==32 || m==63 || m==64 || m==95 || m==96 || | |
67 | m==127 || m==128) dz=0.5*fZ2pitchSPD; | |
68 | fZSPD[m]-=dz; | |
69 | } | |
70 | ||
71 | } | |
ad7f2bfa | 72 | //__________________________________________________________________________ |
04366a57 | 73 | void AliITSClusterFinderV2SPD::FindRawClusters(Int_t mod){ |
04366a57 | 74 | //Find clusters V2 |
75 | SetModule(mod); | |
76 | FindClustersSPD(fDigits); | |
77 | ||
78 | } | |
ad7f2bfa | 79 | //__________________________________________________________________________ |
01ef1bd4 | 80 | void AliITSClusterFinderV2SPD::RawdataToClusters(AliRawReader* rawReader){ |
ad7f2bfa | 81 | //------------------------------------------------------------ |
04366a57 | 82 | // This function creates ITS clusters from raw data |
83 | //------------------------------------------------------------ | |
84 | rawReader->Reset(); | |
85 | AliITSRawStreamSPD inputSPD(rawReader); | |
01ef1bd4 | 86 | FindClustersSPD(&inputSPD); |
04366a57 | 87 | |
88 | } | |
ad7f2bfa | 89 | //__________________________________________________________________________ |
04366a57 | 90 | Int_t AliITSClusterFinderV2SPD::ClustersSPD(AliBin* bins, TClonesArray* digits,TClonesArray* clusters,Int_t maxBins,Int_t nzbins,Int_t iModule,Bool_t rawdata){ |
91 | ||
92 | //Cluster finder for SPD (from digits and from rawdata) | |
66b89079 | 93 | const Double_t kmictocm = 1.0e-4; // convert microns to cm. |
94 | const Double_t defaultField = 5.0; // default Bz value at which Tan(theta_Lorentz) is given in RecoParam | |
04366a57 | 95 | |
5c47990a | 96 | static AliITSRecoParam *repa = NULL; |
97 | if(!repa){ | |
98 | repa = (AliITSRecoParam*) AliITSReconstructor::GetRecoParam(); | |
99 | if(!repa){ | |
ed446fa3 | 100 | repa = AliITSRecoParam::GetHighFluxParam(); |
5c47990a | 101 | AliWarning("Using default AliITSRecoParam class"); |
102 | } | |
103 | } | |
b4704be3 | 104 | const TGeoHMatrix *mT2L=AliITSgeomTGeo::GetTracking2LocalMatrix(iModule); |
8d37cc87 | 105 | |
66b89079 | 106 | // Lorentz angle correction |
107 | Double_t tanLorentzAngle=0; | |
108 | AliITSsegmentationSPD *seg = (AliITSsegmentationSPD*)(GetDetTypeRec()->GetSegmentationModel(0)); | |
109 | Double_t thick = 0.5*kmictocm*seg->Dy(); // Half Thickness in cm | |
110 | if(repa->GetCorrectLorentzAngleSPD()) { // only if CorrectLorentzAngleSPD required | |
111 | // here retrieve the value of the field | |
112 | AliMagF* field = dynamic_cast<AliMagF*>(TGeoGlobalMagField::Instance()->GetField()); | |
045be90c | 113 | if (field == 0) { |
66b89079 | 114 | AliError("Cannot get magnetic field from TGeoGlobalMagField"); |
045be90c | 115 | } |
116 | else { | |
117 | Float_t magField = field->SolenoidField(); | |
118 | tanLorentzAngle=repa->GetTanLorentzAngleHolesSPD() * magField / defaultField ; | |
119 | } | |
66b89079 | 120 | } |
121 | // | |
122 | ||
ad7f2bfa | 123 | if (repa->GetSPDRemoveNoisyFlag()) { |
124 | // Loop on noisy pixels and reset them | |
125 | AliITSCalibrationSPD *cal = | |
126 | (AliITSCalibrationSPD*) fDetTypeRec->GetCalibrationModel(iModule); | |
127 | for(Int_t ipix = 0; ipix<cal->GetNrBad(); ipix++){ | |
128 | Int_t row, col; | |
129 | cal->GetBadPixel(ipix,row,col); | |
190ba77d | 130 | //PH printf(" module %d row %d col %d \n",iModule,row,col); |
ad7f2bfa | 131 | Int_t index = (row+1) * nzbins + (col+1); |
132 | ||
133 | bins[index].SetQ(0); | |
134 | bins[index].SetMask(0xFFFFFFFE); | |
135 | } | |
136 | } | |
137 | ||
138 | if (repa->GetSPDRemoveDeadFlag()) { | |
139 | // Loop on dead pixels and reset them | |
140 | AliITSCalibrationSPD *cal = | |
141 | (AliITSCalibrationSPD*) fDetTypeRec->GetSPDDeadModel(iModule); | |
142 | if (cal->IsBad()) return 0; // if all ladder is dead, return to save time | |
143 | for(Int_t ipix = 0; ipix<cal->GetNrBad(); ipix++){ | |
144 | Int_t row, col; | |
145 | cal->GetBadPixel(ipix,row,col); | |
146 | Int_t index = (row+1) * nzbins + (col+1); | |
147 | bins[index].SetQ(0); | |
148 | bins[index].SetMask(0xFFFFFFFE); | |
149 | } | |
f405602f | 150 | AliITSCalibrationSPD *calSparse = (AliITSCalibrationSPD*) fDetTypeRec->GetSPDSparseDeadModel(iModule); |
151 | for(Int_t ipix = 0; ipix<calSparse->GetNrBad(); ipix++){ | |
152 | Int_t row, col; | |
153 | calSparse->GetBadPixel(ipix,row,col); | |
154 | Int_t index = (row+1) * nzbins + (col+1); | |
155 | bins[index].SetQ(0); | |
156 | bins[index].SetMask(0xFFFFFFFE); | |
157 | } | |
158 | ||
8d37cc87 | 159 | } |
ad7f2bfa | 160 | |
04366a57 | 161 | Int_t nclu=0; |
162 | for(Int_t iBin =0; iBin < maxBins;iBin++){ | |
163 | if(bins[iBin].IsUsed()) continue; | |
98a86dff | 164 | Int_t nBins = 0; |
04366a57 | 165 | Int_t idxBins[200]; |
166 | FindCluster(iBin,nzbins,bins,nBins,idxBins); | |
167 | if (nBins == 200){ | |
168 | Error("ClustersSPD","SPD Too big cluster !\n"); | |
169 | continue; | |
170 | } | |
171 | Int_t milab[10]; | |
172 | for(Int_t ilab=0;ilab<10;ilab++){ | |
173 | milab[ilab]=-2; | |
174 | } | |
175 | if(rawdata){ | |
176 | milab[3]=fNdet[iModule]; | |
177 | } | |
178 | Int_t ymin,ymax,zmin,zmax; | |
179 | if(rawdata){ | |
180 | ymin = (idxBins[0] / nzbins) - 1; | |
181 | ymax = ymin; | |
182 | zmin = (idxBins[0] % nzbins) - 1; | |
183 | zmax = zmin; | |
184 | } | |
185 | else{ | |
186 | AliITSdigitSPD* dig = (AliITSdigitSPD*)digits->UncheckedAt(idxBins[0]); | |
187 | ymin=dig->GetCoord2(); | |
188 | ymax=ymin; | |
189 | zmin=dig->GetCoord1(); | |
190 | zmax=zmin; | |
191 | } | |
190ba77d | 192 | //PH if(iModule == 24 || iModule == 25) printf("\n"); |
04366a57 | 193 | for (Int_t idx = 0; idx < nBins; idx++) { |
194 | Int_t iy; | |
195 | Int_t iz; | |
196 | if(rawdata){ | |
197 | iy = (idxBins[idx] / nzbins) - 1; | |
198 | iz = (idxBins[idx] % nzbins) - 1; | |
199 | } | |
200 | else{ | |
201 | AliITSdigitSPD* dig = (AliITSdigitSPD*)digits->UncheckedAt(idxBins[idx]); | |
202 | iy = dig->GetCoord2(); | |
203 | iz = dig->GetCoord1(); | |
ad7f2bfa | 204 | //if(iModule == 24 || iModule == 25) printf(" || iy %d iz %d in Module %d \n",iy,iz,iModule); |
04366a57 | 205 | } |
206 | if (ymin > iy) ymin = iy; | |
207 | if (ymax < iy) ymax = iy; | |
208 | if (zmin > iz) zmin = iz; | |
209 | if (zmax < iz) zmax = iz; | |
210 | ||
211 | } | |
212 | if(!rawdata){ | |
213 | for(Int_t l=0;l<nBins;l++){ | |
214 | AliITSdigitSPD* dig = (AliITSdigitSPD*)digits->UncheckedAt(idxBins[l]); | |
215 | for(Int_t dlab=0;dlab<10;dlab++){ | |
216 | Int_t digitlab = (dig->GetTracks())[dlab]; | |
217 | if(digitlab<0) continue; | |
218 | AddLabel(milab,digitlab); | |
219 | } | |
220 | if (milab[9]>0) CheckLabels2(milab); | |
221 | } | |
222 | CheckLabels2(milab); | |
223 | } | |
224 | ||
225 | Int_t idy =0; //max 2 clusters | |
226 | if((iModule <= fLastSPD1) &&idy<3) idy=3; | |
227 | if((iModule > fLastSPD1) &&idy<4) idy=4; | |
228 | Int_t idz=3; | |
d6d232ba | 229 | |
230 | // Switch the unfolding OFF/ON | |
5c47990a | 231 | if(!repa->GetUseUnfoldingInClusterFinderSPD()) { |
d6d232ba | 232 | idy=ymax-ymin+1; |
233 | idz=zmax-zmin+1; | |
234 | } | |
98a86dff | 235 | |
04366a57 | 236 | for(Int_t iiz=zmin; iiz<=zmax;iiz+=idz){ |
237 | for(Int_t iiy=ymin;iiy<=ymax;iiy+=idy){ | |
238 | ||
239 | Int_t ndigits=0; | |
240 | Float_t y=0.,z=0.,q=0.; | |
241 | for(Int_t idx=0;idx<nBins;idx++){ | |
242 | Int_t iy; | |
243 | Int_t iz; | |
244 | if(rawdata){ | |
245 | iy = (idxBins[idx] / nzbins)-1; | |
246 | iz = (idxBins[idx] % nzbins)-1; | |
247 | } | |
248 | else{ | |
249 | AliITSdigitSPD* dig = (AliITSdigitSPD*)digits->UncheckedAt(idxBins[idx]); | |
250 | iy = dig->GetCoord2(); | |
251 | iz = dig->GetCoord1(); | |
252 | } | |
253 | if(zmax-zmin>=idz || ymax-ymin>=idy){ | |
254 | if(TMath::Abs(iy-iiy)>0.75*idy) continue; | |
255 | if(TMath::Abs(iz-iiz)>0.75*idz) continue; | |
256 | } | |
257 | ndigits++; | |
5af4a2d0 | 258 | Float_t qBin=0.; |
04366a57 | 259 | if(rawdata) qBin = bins[idxBins[idx]].GetQ(); |
260 | if(!rawdata){ | |
261 | AliITSdigitSPD* dig = (AliITSdigitSPD*)digits->UncheckedAt(idxBins[idx]); | |
262 | qBin = (Float_t)dig->GetSignal(); | |
263 | } | |
264 | y+= qBin * fYSPD[iy]; | |
265 | z+= qBin * fZSPD[iz]; | |
266 | q+= qBin; | |
267 | }// for idx | |
268 | if(ndigits==0) continue; | |
98a86dff | 269 | |
04366a57 | 270 | y /= q; |
271 | z /= q; | |
272 | y -= fHwSPD; | |
273 | z -= fHlSPD; | |
1f3e997f | 274 | |
66b89079 | 275 | // Lorentz drift effect in local y |
276 | y -= tanLorentzAngle*thick; | |
277 | // | |
278 | ||
40f5092a | 279 | Float_t hit[6]; //y,z,sigma(y)^2, sigma(z)^2, charge |
b4704be3 | 280 | { |
281 | Double_t loc[3]={y,0.,z},trk[3]={0.,0.,0.}; | |
282 | mT2L->MasterToLocal(loc,trk); | |
283 | hit[0]=trk[1]; | |
284 | hit[1]=trk[2]; | |
285 | } | |
04366a57 | 286 | hit[2] = fYpitchSPD*fYpitchSPD/12.; |
287 | hit[3] = fZ1pitchSPD*fZ1pitchSPD/12.; | |
00a7cc50 | 288 | hit[4] = 1.; |
40f5092a | 289 | hit[5] = 0.; |
b4704be3 | 290 | |
04366a57 | 291 | if(!rawdata) milab[3]=fNdet[iModule]; |
292 | Int_t info[3] = {ymax-ymin+1,zmax-zmin+1,fNlayer[iModule]}; | |
293 | if(!rawdata){ | |
75fb37cc | 294 | AliITSRecPoint cl(milab,hit,info); |
98a86dff | 295 | cl.SetType(nBins); |
00a7cc50 | 296 | fDetTypeRec->AddRecPoint(cl); |
04366a57 | 297 | } |
298 | else{ | |
299 | Int_t label[4]={milab[0],milab[1],milab[2],milab[3]}; | |
98a86dff | 300 | AliITSRecPoint cl(label, hit,info); |
301 | cl.SetType(nBins); | |
04366a57 | 302 | new (clusters->AddrAt(nclu)) |
98a86dff | 303 | AliITSRecPoint(cl); |
04366a57 | 304 | } |
305 | nclu++; | |
306 | }// for iiy | |
307 | }// for iiz | |
308 | }//end for iBin | |
309 | return nclu; | |
310 | ||
311 | } | |
ad7f2bfa | 312 | //__________________________________________________________________________ |
01ef1bd4 | 313 | void AliITSClusterFinderV2SPD::FindClustersSPD(AliITSRawStreamSPD* input) |
04366a57 | 314 | { |
315 | //------------------------------------------------------------ | |
ad7f2bfa | 316 | // SPD cluster finder for raw data (this method is called once per event) |
317 | // Now also fills fast-or fired map | |
04366a57 | 318 | //------------------------------------------------------------ |
01ef1bd4 | 319 | |
320 | AliITSRecPointContainer* rpc = AliITSRecPointContainer::Instance(); | |
04366a57 | 321 | Int_t nClustersSPD = 0; |
322 | Int_t kNzBins = fNzSPD + 2; | |
323 | Int_t kNyBins = fNySPD + 2; | |
324 | Int_t kMaxBin = kNzBins * kNyBins; | |
d7d9347b | 325 | AliBin *binsSPD = new AliBin[kMaxBin]; |
326 | AliBin *binsSPDInit = new AliBin[kMaxBin]; | |
04366a57 | 327 | AliBin* bins = NULL; |
328 | ||
329 | // read raw data input stream | |
330 | while (kTRUE) { | |
331 | Bool_t next = input->Next(); | |
332 | if (!next || input->IsNewModule()) { | |
333 | Int_t iModule = input->GetPrevModuleID(); | |
334 | ||
335 | // when all data from a module was read, search for clusters | |
336 | if (bins) { | |
01ef1bd4 | 337 | TClonesArray* clusters = rpc->UncheckedGetClusters(iModule); |
338 | Int_t nClusters = ClustersSPD(bins,0,clusters,kMaxBin,kNzBins,iModule,kTRUE); | |
04366a57 | 339 | nClustersSPD += nClusters; |
d7d9347b | 340 | bins = NULL; |
04366a57 | 341 | } |
342 | ||
343 | if (!next) break; | |
d7d9347b | 344 | bins = binsSPD; |
345 | memcpy(binsSPD,binsSPDInit,sizeof(AliBin)*kMaxBin); | |
04366a57 | 346 | } |
347 | ||
190ba77d | 348 | if (next && bins) { |
ad7f2bfa | 349 | // fill the current digit into the bins array |
350 | Int_t index = (input->GetCoord2()+1) * kNzBins + (input->GetCoord1()+1); | |
351 | bins[index].SetIndex(index); | |
352 | bins[index].SetQ(1); | |
353 | bins[index].SetMask(1); | |
ff44c37c | 354 | } |
355 | } | |
356 | ||
d7d9347b | 357 | delete [] binsSPDInit; |
358 | delete [] binsSPD; | |
359 | ||
3b1d8321 | 360 | AliDebug(1,Form("found clusters in ITS SPD: %d", nClustersSPD)); |
361 | ||
ad7f2bfa | 362 | |
363 | // Fill the FastOr fired map | |
364 | for (UInt_t eq=0; eq<20; eq++) { | |
365 | for (UInt_t hs=0; hs<6; hs++) { | |
366 | for (UInt_t chip=0; chip<10; chip++) { | |
367 | if (input->GetFastOrSignal(eq,hs,chip)) { | |
368 | fDetTypeRec->SetFastOrFiredMapOnline(eq,hs,chip); | |
369 | } | |
370 | } | |
371 | } | |
372 | } | |
373 | ||
04366a57 | 374 | } |
ad7f2bfa | 375 | //__________________________________________________________________________ |
04366a57 | 376 | void AliITSClusterFinderV2SPD::FindClustersSPD(TClonesArray *digits) { |
377 | //------------------------------------------------------------ | |
ad7f2bfa | 378 | // SPD cluster finder for digits (this method is called for each module) |
379 | // Now also fills the fast-or fired map | |
04366a57 | 380 | //------------------------------------------------------------ |
381 | ||
382 | ||
383 | Int_t kNzBins = fNzSPD + 2; | |
384 | const Int_t kMAXBIN=kNzBins*(fNySPD+2); | |
385 | ||
386 | Int_t ndigits=digits->GetEntriesFast(); | |
387 | AliBin *bins=new AliBin[kMAXBIN]; | |
388 | ||
ad7f2bfa | 389 | Int_t idig; |
390 | AliITSdigitSPD *digit=0; | |
391 | for (idig=0; idig<ndigits; idig++) { | |
392 | digit=(AliITSdigitSPD*)digits->UncheckedAt(idig); | |
393 | Int_t i=digit->GetCoord2()+1; //y | |
394 | Int_t j=digit->GetCoord1()+1; | |
395 | Int_t index=i*kNzBins+j; | |
396 | ||
397 | bins[index].SetIndex(idig); | |
398 | bins[index].SetQ(1); | |
399 | bins[index].SetMask(1); | |
04366a57 | 400 | } |
ad7f2bfa | 401 | |
04366a57 | 402 | |
d6d232ba | 403 | Int_t nClustersSPD = ClustersSPD(bins,digits,0,kMAXBIN,kNzBins,fModule,kFALSE); |
04366a57 | 404 | delete [] bins; |
d6d232ba | 405 | |
813020f4 | 406 | AliDebug(1,Form("found clusters in ITS SPD: %d", nClustersSPD)); |
ad7f2bfa | 407 | |
408 | // Fill the FastOr fired map | |
409 | AliITSFOSignalsSPD* foSignals = fDetTypeRec->GetFOSignals(); | |
410 | if (foSignals) { | |
411 | UInt_t eq = AliITSRawStreamSPD::GetOnlineEqIdFromOffline(fModule); | |
412 | UInt_t hs = AliITSRawStreamSPD::GetOnlineHSFromOffline(fModule); | |
413 | for(UInt_t ch=0; ch<5; ch++) { | |
414 | UInt_t chip = AliITSRawStreamSPD::GetOnlineChipFromOffline(fModule,ch*32); | |
415 | if (foSignals->GetSignal(eq,hs,chip)) { | |
416 | fDetTypeRec->SetFastOrFiredMapOnline(eq,hs,chip); | |
417 | } | |
418 | } | |
419 | } | |
420 | ||
04366a57 | 421 | } |