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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 | **************************************************************************/ | |
d76cb3ad | 15 | |
16 | /* $Id$*/ | |
17 | ||
04366a57 | 18 | //////////////////////////////////////////////////////////////////////////// |
19 | // Implementation of the ITS clusterer V2 class // | |
20 | // // | |
21 | // Origin: Iouri Belikov, CERN, Jouri.Belikov@cern.ch // | |
22 | // // | |
23 | /////////////////////////////////////////////////////////////////////////// | |
24 | ||
25 | ||
04366a57 | 26 | |
ae485645 | 27 | #include <TClonesArray.h> |
04366a57 | 28 | #include "AliITSClusterFinderV2SDD.h" |
00a7cc50 | 29 | #include "AliITSRecPoint.h" |
7d62fb64 | 30 | #include "AliITSDetTypeRec.h" |
04366a57 | 31 | #include "AliRawReader.h" |
0599a018 | 32 | #include "AliITSRawStreamSDD.h" |
5bfe44ce | 33 | #include "AliITSCalibrationSDD.h" |
34 | #include "AliITSDetTypeRec.h" | |
debf7b78 | 35 | #include "AliITSReconstructor.h" |
5bfe44ce | 36 | #include "AliITSsegmentationSDD.h" |
04366a57 | 37 | #include "AliITSdigitSDD.h" |
b4704be3 | 38 | #include "AliITSgeomTGeo.h" |
debf7b78 | 39 | |
04366a57 | 40 | ClassImp(AliITSClusterFinderV2SDD) |
41 | ||
4952f440 | 42 | AliITSClusterFinderV2SDD::AliITSClusterFinderV2SDD(AliITSDetTypeRec* dettyp):AliITSClusterFinderV2(dettyp) |
a66a0eb6 | 43 | { |
04366a57 | 44 | |
45 | //Default constructor | |
46 | ||
04366a57 | 47 | } |
48 | ||
49 | ||
50 | void AliITSClusterFinderV2SDD::FindRawClusters(Int_t mod){ | |
51 | ||
52 | //Find clusters V2 | |
53 | SetModule(mod); | |
54 | FindClustersSDD(fDigits); | |
55 | ||
56 | } | |
57 | ||
58 | void AliITSClusterFinderV2SDD::FindClustersSDD(TClonesArray *digits) { | |
59 | //------------------------------------------------------------ | |
60 | // Actual SDD cluster finder | |
61 | //------------------------------------------------------------ | |
4952f440 | 62 | Int_t nAnodes = GetSeg()->NpzHalf(); |
63 | Int_t nzBins = nAnodes+2; | |
64 | Int_t nTimeBins = GetSeg()->Npx(); | |
65 | Int_t nxBins = nTimeBins+2; | |
f6b6d58e | 66 | const Int_t kMaxBin=nzBins*nxBins; |
04366a57 | 67 | |
68 | AliBin *bins[2]; | |
4952f440 | 69 | bins[0]=new AliBin[kMaxBin]; |
70 | bins[1]=new AliBin[kMaxBin]; | |
404c1c29 | 71 | AliITSCalibrationSDD* cal = (AliITSCalibrationSDD*)GetResp(fModule); |
9c7f5947 | 72 | if(cal==0){ |
73 | AliError(Form("Calibration object not present for SDD module %d\n",fModule)); | |
74 | return; | |
75 | } | |
0599a018 | 76 | AliITSresponseSDD* res = (AliITSresponseSDD*)cal->GetResponse(); |
77 | const char *option=res->ZeroSuppOption(); | |
04366a57 | 78 | AliITSdigitSDD *d=0; |
79 | Int_t i, ndigits=digits->GetEntriesFast(); | |
80 | for (i=0; i<ndigits; i++) { | |
81 | d=(AliITSdigitSDD*)digits->UncheckedAt(i); | |
20f3f947 | 82 | Int_t ian=d->GetCoord1(); |
83 | Int_t itb=d->GetCoord2(); | |
84 | Int_t iSide=0; | |
85 | if (ian >= nAnodes) iSide=1; | |
86 | Float_t gain=cal->GetChannelGain(ian); | |
5683bd96 | 87 | Float_t charge=d->GetSignal(); |
20f3f947 | 88 | if(strstr(option,"ZS")) charge+=(Float_t)cal->GetZSLowThreshold(iSide); |
89 | Float_t baseline = cal->GetBaseline(ian); | |
90 | if(charge>baseline) charge-=baseline; | |
91 | else charge=0; | |
5683bd96 | 92 | |
9c7f5947 | 93 | if(gain>0.){ // Bad channels have gain=0. |
94 | charge/=gain; | |
20f3f947 | 95 | if(charge<cal->GetThresholdAnode(ian)) continue; |
9c7f5947 | 96 | Int_t q=(Int_t)(charge+0.5); |
20f3f947 | 97 | Int_t y=itb+1; |
98 | Int_t z=ian+1; | |
9c7f5947 | 99 | if (z <= nAnodes){ |
100 | bins[0][y*nzBins+z].SetQ(q); | |
101 | bins[0][y*nzBins+z].SetMask(1); | |
102 | bins[0][y*nzBins+z].SetIndex(i); | |
103 | } else { | |
104 | z-=nAnodes; | |
105 | bins[1][y*nzBins+z].SetQ(q); | |
106 | bins[1][y*nzBins+z].SetMask(1); | |
107 | bins[1][y*nzBins+z].SetIndex(i); | |
108 | } | |
04366a57 | 109 | } |
110 | } | |
111 | ||
4952f440 | 112 | FindClustersSDD(bins, kMaxBin, nzBins, digits); |
04366a57 | 113 | |
114 | delete[] bins[0]; | |
115 | delete[] bins[1]; | |
116 | ||
117 | } | |
118 | ||
119 | void AliITSClusterFinderV2SDD:: | |
120 | FindClustersSDD(AliBin* bins[2], Int_t nMaxBin, Int_t nzBins, | |
121 | TClonesArray *digits, TClonesArray *clusters) { | |
122 | //------------------------------------------------------------ | |
123 | // Actual SDD cluster finder | |
124 | //------------------------------------------------------------ | |
b4704be3 | 125 | |
debf7b78 | 126 | static AliITSRecoParam *repa = NULL; |
127 | if(!repa){ | |
128 | repa = (AliITSRecoParam*) AliITSReconstructor::GetRecoParam(); | |
129 | if(!repa){ | |
130 | repa = (AliITSRecoParam*) AliITSReconstructor::GetRecoParamDefault(); | |
131 | AliWarning("Using default AliITSRecoParam class"); | |
132 | } | |
133 | } | |
b4704be3 | 134 | const TGeoHMatrix *mT2L=AliITSgeomTGeo::GetTracking2LocalMatrix(fModule); |
404c1c29 | 135 | AliITSCalibrationSDD* cal = (AliITSCalibrationSDD*)GetResp(fModule); |
9c7f5947 | 136 | if(cal==0){ |
137 | AliError(Form("Calibration object not present for SDD module %d\n",fModule)); | |
138 | return; | |
139 | } | |
04366a57 | 140 | Int_t ncl=0; |
141 | TClonesArray &cl=*clusters; | |
142 | for (Int_t s=0; s<2; s++) | |
143 | for (Int_t i=0; i<nMaxBin; i++) { | |
e3ee4984 | 144 | NoiseSuppress(i,s,nzBins,bins[s],cal); |
04366a57 | 145 | if (bins[s][i].IsUsed()) continue; |
146 | Int_t idx[32]; UInt_t msk[32]; Int_t npeaks=0; | |
147 | FindPeaks(i, nzBins, bins[s], idx, msk, npeaks); | |
148 | ||
149 | if (npeaks>30) continue; | |
150 | if (npeaks==0) continue; | |
151 | ||
152 | Int_t k,l; | |
153 | for (k=0; k<npeaks-1; k++){//mark adjacent peaks | |
154 | if (idx[k] < 0) continue; //this peak is already removed | |
155 | for (l=k+1; l<npeaks; l++) { | |
f6b6d58e | 156 | if (idx[l] < 0) continue; //this peak is already removed |
157 | Int_t ki=idx[k]/nzBins, kj=idx[k] - ki*nzBins; | |
158 | Int_t li=idx[l]/nzBins, lj=idx[l] - li*nzBins; | |
159 | Int_t di=TMath::Abs(ki - li); | |
160 | Int_t dj=TMath::Abs(kj - lj); | |
161 | if (di>1 || dj>1) continue; | |
162 | if (bins[s][idx[k]].GetQ() > bins[s][idx[l]].GetQ()) { | |
163 | msk[l]=msk[k]; | |
164 | idx[l]*=-1; | |
165 | } else { | |
166 | msk[k]=msk[l]; | |
167 | idx[k]*=-1; | |
168 | break; | |
169 | } | |
04366a57 | 170 | } |
171 | } | |
172 | ||
173 | for (k=0; k<npeaks; k++) { | |
debf7b78 | 174 | if(repa->GetUseUnfoldingInClusterFinderSDD()==kFALSE) msk[k]=msk[0]; |
04366a57 | 175 | MarkPeak(TMath::Abs(idx[k]), nzBins, bins[s], msk[k]); |
176 | } | |
177 | ||
178 | for (k=0; k<npeaks; k++) { | |
f6b6d58e | 179 | if (idx[k] < 0) continue; //removed peak |
180 | AliITSRecPoint c; | |
181 | MakeCluster(idx[k], nzBins, bins[s], msk[k], c); | |
182 | //mi change | |
183 | Int_t milab[10]; | |
184 | for (Int_t ilab=0;ilab<10;ilab++){ | |
185 | milab[ilab]=-2; | |
186 | } | |
187 | Int_t maxi=0,mini=0,maxj=0,minj=0; | |
188 | //AliBin *bmax=&bins[s][idx[k]]; | |
189 | //Float_t max = TMath::Max(TMath::Abs(bmax->GetQ())/5.,3.); | |
190 | ||
191 | for (Int_t di=-2; di<=2;di++){ | |
192 | for (Int_t dj=-3;dj<=3;dj++){ | |
193 | Int_t index = idx[k]+di+dj*nzBins; | |
194 | if (index<0) continue; | |
195 | if (index>=nMaxBin) continue; | |
196 | AliBin *b=&bins[s][index]; | |
197 | Int_t nAnode=index%nzBins-1; | |
198 | Int_t adcSignal=b->GetQ(); | |
199 | if(adcSignal>cal->GetThresholdAnode(nAnode)){ | |
200 | if (di>maxi) maxi=di; | |
201 | if (di<mini) mini=di; | |
202 | if (dj>maxj) maxj=dj; | |
203 | if (dj<minj) minj=dj; | |
204 | } | |
205 | // | |
206 | if(digits) { | |
207 | if (TMath::Abs(di)<2&&TMath::Abs(dj)<2){ | |
208 | AliITSdigitSDD* d=(AliITSdigitSDD*)digits->UncheckedAt(b->GetIndex()); | |
209 | for (Int_t itrack=0;itrack<10;itrack++){ | |
210 | Int_t track = (d->GetTracks())[itrack]; | |
211 | if (track>=0) { | |
212 | AddLabel(milab, track); | |
213 | } | |
214 | } | |
215 | } | |
216 | } | |
217 | } | |
218 | } | |
219 | ||
220 | ||
221 | Float_t y=c.GetY(),z=c.GetZ(), q=c.GetQ(); | |
222 | y/=q; z/=q; | |
223 | Float_t zAnode=z-0.5; // to have anode in range 0.-255. and centered on the mid of the pitch | |
224 | Float_t timebin=y-0.5; // to have time bin in range 0.-255. amd centered on the mid of the bin | |
225 | if(s==1) zAnode += GetSeg()->NpzHalf(); // right side has anodes from 256. to 511. | |
226 | Float_t zdet = GetSeg()->GetLocalZFromAnode(zAnode); | |
227 | Float_t driftTime = GetSeg()->GetDriftTimeFromTb(timebin) - cal->GetTimeOffset(); | |
228 | Float_t driftPathMicron = cal->GetDriftPath(driftTime,zAnode); | |
229 | const Double_t kMicronTocm = 1.0e-4; | |
230 | Float_t xdet=(driftPathMicron-GetSeg()->Dx())*kMicronTocm; // xdet is negative | |
231 | if (s==0) xdet=-xdet; // left side has positive local x | |
c9a38d3d | 232 | |
233 | Float_t corrx=0, corrz=0; | |
234 | cal->GetCorrections(zdet,xdet,corrz,corrx,GetSeg()); | |
235 | zdet+=corrz; | |
236 | xdet+=corrx; | |
f6b6d58e | 237 | |
238 | Double_t loc[3]={xdet,0.,zdet},trk[3]={0.,0.,0.}; | |
239 | mT2L->MasterToLocal(loc,trk); | |
240 | y=trk[1]; | |
241 | z=trk[2]; | |
242 | ||
243 | q/=cal->GetADC2keV(); //to have MPV 1 MIP = 86.4 KeV | |
244 | Float_t hit[5] = {y, z, 0.0030*0.0030, 0.0020*0.0020, q}; | |
245 | Int_t info[3] = {maxj-minj+1, maxi-mini+1, fNlayer[fModule]}; | |
246 | if (digits) { | |
247 | // AliBin *b=&bins[s][idx[k]]; | |
248 | // AliITSdigitSDD* d=(AliITSdigitSDD*)digits->UncheckedAt(b->GetIndex()); | |
249 | { | |
250 | //Int_t lab[3]; | |
251 | //lab[0]=(d->GetTracks())[0]; | |
252 | //lab[1]=(d->GetTracks())[1]; | |
253 | //lab[2]=(d->GetTracks())[2]; | |
254 | //CheckLabels(lab); | |
255 | CheckLabels2(milab); | |
256 | } | |
257 | } | |
258 | milab[3]=fNdet[fModule]; | |
259 | ||
260 | AliITSRecPoint cc(milab,hit,info); | |
261 | cc.SetType(npeaks); | |
262 | if(clusters) new (cl[ncl]) AliITSRecPoint(cc); | |
263 | else { | |
264 | fDetTypeRec->AddRecPoint(cc); | |
265 | } | |
266 | ncl++; | |
04366a57 | 267 | } |
268 | } | |
24c98369 | 269 | |
04366a57 | 270 | } |
f6b6d58e | 271 | //______________________________________________________________________ |
04366a57 | 272 | void AliITSClusterFinderV2SDD::RawdataToClusters(AliRawReader* rawReader,TClonesArray** clusters){ |
273 | //------------------------------------------------------------ | |
274 | // This function creates ITS clusters from raw data | |
275 | //------------------------------------------------------------ | |
276 | rawReader->Reset(); | |
0599a018 | 277 | AliITSRawStreamSDD inputSDD(rawReader); |
979b5a5f | 278 | AliITSDDLModuleMapSDD *ddlmap=(AliITSDDLModuleMapSDD*)fDetTypeRec->GetDDLModuleMapSDD(); |
279 | inputSDD.SetDDLModuleMap(ddlmap); | |
04366a57 | 280 | FindClustersSDD(&inputSDD,clusters); |
281 | ||
282 | } | |
283 | ||
284 | void AliITSClusterFinderV2SDD::FindClustersSDD(AliITSRawStream* input, | |
285 | TClonesArray** clusters) | |
286 | { | |
287 | //------------------------------------------------------------ | |
288 | // Actual SDD cluster finder for raw data | |
289 | //------------------------------------------------------------ | |
290 | Int_t nClustersSDD = 0; | |
4952f440 | 291 | Int_t nAnodes = GetSeg()->NpzHalf(); |
292 | Int_t nzBins = nAnodes+2; | |
293 | Int_t nTimeBins = GetSeg()->Npx(); | |
294 | Int_t nxBins = nTimeBins+2; | |
f6b6d58e | 295 | const Int_t kMaxBin=nzBins*nxBins; |
ae485645 | 296 | AliBin *bins[2]; |
93a93288 | 297 | AliBin *ddlbins[kHybridsPerDDL]; // 12 modules (=24 hybrids) of 1 DDL read "in parallel" |
298 | for(Int_t iHyb=0;iHyb<kHybridsPerDDL;iHyb++) ddlbins[iHyb]=new AliBin[kMaxBin]; | |
04366a57 | 299 | // read raw data input stream |
14dceddf | 300 | while (input->Next()) { |
e4da2288 | 301 | Int_t iModule = input->GetModuleID(); |
93a93288 | 302 | if(iModule<0){ |
303 | AliWarning(Form("Invalid SDD module number %d\n", iModule)); | |
304 | continue; | |
305 | } | |
44c5b268 | 306 | |
14dceddf | 307 | Int_t iCarlos =((AliITSRawStreamSDD*)input)->GetCarlosId(); |
308 | Int_t iSide = ((AliITSRawStreamSDD*)input)->GetChannel(); | |
309 | Int_t iHybrid=iCarlos*2+iSide; | |
310 | if (input->IsCompletedModule()) { | |
04366a57 | 311 | // when all data from a module was read, search for clusters |
44c5b268 | 312 | if(iCarlos<0){ |
313 | AliWarning(Form("Invalid SDD carlos number %d on module %d\n", iCarlos,iModule)); | |
314 | continue; | |
315 | } | |
316 | clusters[iModule] = new TClonesArray("AliITSRecPoint"); | |
317 | fModule = iModule; | |
318 | bins[0]=ddlbins[iCarlos*2]; // first hybrid of the completed module | |
319 | bins[1]=ddlbins[iCarlos*2+1]; // second hybrid of the completed module | |
320 | FindClustersSDD(bins, kMaxBin, nzBins, NULL, clusters[iModule]); | |
321 | Int_t nClusters = clusters[iModule]->GetEntriesFast(); | |
322 | nClustersSDD += nClusters; | |
323 | for(Int_t iBin=0;iBin<kMaxBin; iBin++){ | |
324 | ddlbins[iCarlos*2][iBin].Reset(); | |
325 | ddlbins[iCarlos*2+1][iBin].Reset(); | |
326 | } | |
5dfa68c5 | 327 | }else{ |
04366a57 | 328 | // fill the current digit into the bins array |
44c5b268 | 329 | if(iHybrid<0 || iHybrid>=kHybridsPerDDL){ |
330 | AliWarning(Form("Invalid SDD hybrid number %d on module %d\n", iHybrid,iModule)); | |
331 | continue; | |
332 | } | |
e4da2288 | 333 | AliITSCalibrationSDD* cal = (AliITSCalibrationSDD*)GetResp(iModule); |
9c7f5947 | 334 | if(cal==0){ |
335 | AliError(Form("Calibration object not present for SDD module %d\n",iModule)); | |
336 | continue; | |
337 | } | |
5dfa68c5 | 338 | AliITSresponseSDD* res = (AliITSresponseSDD*)cal->GetResponse(); |
339 | const char *option=res->ZeroSuppOption(); | |
5683bd96 | 340 | Float_t charge=input->GetSignal(); |
14dceddf | 341 | Int_t chan=input->GetCoord1()+nAnodes*iSide; |
342 | Float_t gain=cal->GetChannelGain(chan); | |
20f3f947 | 343 | if(strstr(option,"ZS")) charge+=(Float_t)cal->GetZSLowThreshold(iSide); |
344 | Float_t baseline = cal->GetBaseline(chan); | |
345 | if(charge>baseline) charge-=baseline; | |
346 | else charge=0; | |
9c7f5947 | 347 | if(gain>0.){ // Bad channels have gain=0 |
348 | charge/=gain; | |
349 | if(charge>=cal->GetThresholdAnode(chan)) { | |
350 | Int_t q=(Int_t)(charge+0.5); | |
351 | Int_t iz = input->GetCoord1(); | |
352 | Int_t itb = input->GetCoord2(); | |
353 | Int_t index = (itb+1) * nzBins + (iz+1); | |
354 | if(index<kMaxBin){ | |
355 | ddlbins[iHybrid][index].SetQ(q); | |
356 | ddlbins[iHybrid][index].SetMask(1); | |
357 | ddlbins[iHybrid][index].SetIndex(index); | |
358 | }else{ | |
359 | AliWarning(Form("Invalid SDD cell: Anode=%d TimeBin=%d",iz,itb)); | |
360 | } | |
93a93288 | 361 | } |
5dfa68c5 | 362 | } |
04366a57 | 363 | } |
364 | } | |
93a93288 | 365 | for(Int_t iHyb=0;iHyb<kHybridsPerDDL;iHyb++) delete [] ddlbins[iHyb]; |
04366a57 | 366 | Info("FindClustersSDD", "found clusters in ITS SDD: %d", nClustersSDD); |
04366a57 | 367 | } |
368 | ||
e3ee4984 | 369 | //______________________________________________________________________ |
370 | void AliITSClusterFinderV2SDD::NoiseSuppress(Int_t k, Int_t sid,Int_t nzBins, AliBin* bins, AliITSCalibrationSDD* cal) const { | |
371 | // applies zero suppression using the measured noise of each anode | |
372 | // threshold values from ALICE-INT-1999-28 V10 | |
373 | Float_t factL=2.2; | |
374 | Float_t factH=4.0; | |
375 | // | |
376 | ||
377 | Int_t iAn=(k%nzBins)-1; | |
378 | if(iAn<0 || iAn>255) return; | |
379 | if(sid==1) iAn+=256; | |
380 | Int_t nLow=0, nHigh=0; | |
381 | Float_t noise=cal->GetNoiseAfterElectronics(iAn); | |
382 | Float_t noisem1=noise; | |
383 | if(iAn>1) noisem1=cal->GetNoiseAfterElectronics(iAn-1); | |
384 | Float_t noisep1=noise; | |
385 | if(iAn<511) noisep1=cal->GetNoiseAfterElectronics(iAn+1); | |
386 | Float_t tL=noise*factL; | |
387 | Float_t tH=noise*factH; | |
388 | Float_t tLp1=noisep1*factL; | |
389 | Float_t tHp1=noisep1*factH; | |
390 | Float_t tLm1=noisem1*factL; | |
391 | Float_t tHm1=noisem1*factH; | |
392 | Float_t cC=bins[k].GetQ(); | |
393 | if(cC<=tL){ | |
394 | bins[k].SetQ(0); | |
395 | bins[k].SetMask(0xFFFFFFFE); | |
396 | return; | |
397 | } | |
398 | nLow++; // cC is greater than tL | |
399 | if(cC>tH) nHigh++; | |
400 | Int_t sS=bins[k-1].GetQ(); | |
401 | if(sS>tLm1) nLow++; | |
402 | if(sS>tHm1) nHigh++; | |
403 | Int_t nN=bins[k+1].GetQ(); | |
404 | if(nN>tLp1) nLow++; | |
405 | if(nN>tHp1) nHigh++; | |
406 | Int_t eE=bins[k-nzBins].GetQ(); | |
407 | if(eE>tL) nLow++; | |
408 | if(eE>tH) nHigh++; | |
409 | Int_t wW=bins[k+nzBins].GetQ(); | |
410 | if(wW>tL) nLow++; | |
411 | if(wW>tH) nHigh++; | |
412 | if(nLow<3 || nHigh<1){ | |
413 | bins[k].SetQ(0); | |
414 | bins[k].SetMask(0xFFFFFFFE); | |
415 | } | |
416 | } | |
417 | ||
04366a57 | 418 | |
d97eb3fe | 419 |