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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 // | |
19 | // // | |
20 | /////////////////////////////////////////////////////////////////////////// | |
21 | ||
22 | ||
04366a57 | 23 | |
24 | #include "AliITSClusterFinderV2SDD.h" | |
00a7cc50 | 25 | #include "AliITSRecPoint.h" |
7d62fb64 | 26 | #include "AliITSDetTypeRec.h" |
04366a57 | 27 | #include "AliRawReader.h" |
404c1c29 | 28 | #include "AliITSRawStreamSDDv3.h" |
5bfe44ce | 29 | #include "AliITSCalibrationSDD.h" |
30 | #include "AliITSDetTypeRec.h" | |
31 | #include "AliITSsegmentationSDD.h" | |
04366a57 | 32 | #include <TClonesArray.h> |
04366a57 | 33 | #include "AliITSdigitSDD.h" |
34 | ||
35 | ClassImp(AliITSClusterFinderV2SDD) | |
36 | ||
e56160b8 | 37 | AliITSClusterFinderV2SDD::AliITSClusterFinderV2SDD(AliITSDetTypeRec* dettyp):AliITSClusterFinderV2(dettyp), |
38 | fNySDD(256), | |
39 | fNzSDD(256), | |
40 | fYpitchSDD(0.01825), | |
41 | fZpitchSDD(0.02940), | |
42 | fHwSDD(3.5085), | |
43 | fHlSDD(3.7632), | |
44 | fYoffSDD(0.0425){ | |
04366a57 | 45 | |
46 | //Default constructor | |
47 | ||
04366a57 | 48 | |
49 | } | |
50 | ||
51 | ||
52 | void AliITSClusterFinderV2SDD::FindRawClusters(Int_t mod){ | |
53 | ||
54 | //Find clusters V2 | |
55 | SetModule(mod); | |
56 | FindClustersSDD(fDigits); | |
57 | ||
58 | } | |
59 | ||
60 | void AliITSClusterFinderV2SDD::FindClustersSDD(TClonesArray *digits) { | |
61 | //------------------------------------------------------------ | |
62 | // Actual SDD cluster finder | |
63 | //------------------------------------------------------------ | |
64 | Int_t kNzBins = fNzSDD + 2; | |
65 | const Int_t kMAXBIN=kNzBins*(fNySDD+2); | |
66 | ||
67 | AliBin *bins[2]; | |
68 | bins[0]=new AliBin[kMAXBIN]; | |
69 | bins[1]=new AliBin[kMAXBIN]; | |
404c1c29 | 70 | AliITSCalibrationSDD* cal = (AliITSCalibrationSDD*)GetResp(fModule); |
71 | ||
04366a57 | 72 | AliITSdigitSDD *d=0; |
73 | Int_t i, ndigits=digits->GetEntriesFast(); | |
74 | for (i=0; i<ndigits; i++) { | |
75 | d=(AliITSdigitSDD*)digits->UncheckedAt(i); | |
404c1c29 | 76 | Float_t baseline = cal->GetBaseline(d->GetCoord1()); |
77 | ||
04366a57 | 78 | Int_t y=d->GetCoord2()+1; //y |
79 | Int_t z=d->GetCoord1()+1; //z | |
80 | Int_t q=d->GetSignal(); | |
404c1c29 | 81 | |
404c1c29 | 82 | if(q>baseline) q-=(Int_t)baseline; |
83 | else q=0; | |
9e4d7193 | 84 | if(q<cal->GetThresholdAnode(d->GetCoord1())) continue; |
404c1c29 | 85 | |
86 | //if (q<3) continue; | |
04366a57 | 87 | |
88 | if (z <= fNzSDD) { | |
89 | bins[0][y*kNzBins+z].SetQ(q); | |
90 | bins[0][y*kNzBins+z].SetMask(1); | |
91 | bins[0][y*kNzBins+z].SetIndex(i); | |
92 | } else { | |
93 | z-=fNzSDD; | |
94 | bins[1][y*kNzBins+z].SetQ(q); | |
95 | bins[1][y*kNzBins+z].SetMask(1); | |
96 | bins[1][y*kNzBins+z].SetIndex(i); | |
97 | } | |
98 | } | |
99 | ||
100 | FindClustersSDD(bins, kMAXBIN, kNzBins, digits); | |
101 | ||
102 | delete[] bins[0]; | |
103 | delete[] bins[1]; | |
104 | ||
105 | } | |
106 | ||
107 | void AliITSClusterFinderV2SDD:: | |
108 | FindClustersSDD(AliBin* bins[2], Int_t nMaxBin, Int_t nzBins, | |
109 | TClonesArray *digits, TClonesArray *clusters) { | |
110 | //------------------------------------------------------------ | |
111 | // Actual SDD cluster finder | |
112 | //------------------------------------------------------------ | |
404c1c29 | 113 | AliITSCalibrationSDD* cal = (AliITSCalibrationSDD*)GetResp(fModule); |
04366a57 | 114 | Int_t ncl=0; |
115 | TClonesArray &cl=*clusters; | |
116 | for (Int_t s=0; s<2; s++) | |
117 | for (Int_t i=0; i<nMaxBin; i++) { | |
118 | if (bins[s][i].IsUsed()) continue; | |
119 | Int_t idx[32]; UInt_t msk[32]; Int_t npeaks=0; | |
120 | FindPeaks(i, nzBins, bins[s], idx, msk, npeaks); | |
121 | ||
122 | if (npeaks>30) continue; | |
123 | if (npeaks==0) continue; | |
124 | ||
125 | Int_t k,l; | |
126 | for (k=0; k<npeaks-1; k++){//mark adjacent peaks | |
127 | if (idx[k] < 0) continue; //this peak is already removed | |
128 | for (l=k+1; l<npeaks; l++) { | |
129 | if (idx[l] < 0) continue; //this peak is already removed | |
130 | Int_t ki=idx[k]/nzBins, kj=idx[k] - ki*nzBins; | |
131 | Int_t li=idx[l]/nzBins, lj=idx[l] - li*nzBins; | |
132 | Int_t di=TMath::Abs(ki - li); | |
133 | Int_t dj=TMath::Abs(kj - lj); | |
134 | if (di>1 || dj>1) continue; | |
135 | if (bins[s][idx[k]].GetQ() > bins[s][idx[l]].GetQ()) { | |
136 | msk[l]=msk[k]; | |
137 | idx[l]*=-1; | |
138 | } else { | |
139 | msk[k]=msk[l]; | |
140 | idx[k]*=-1; | |
141 | break; | |
142 | } | |
143 | } | |
144 | } | |
145 | ||
146 | for (k=0; k<npeaks; k++) { | |
147 | MarkPeak(TMath::Abs(idx[k]), nzBins, bins[s], msk[k]); | |
148 | } | |
149 | ||
150 | for (k=0; k<npeaks; k++) { | |
151 | if (idx[k] < 0) continue; //removed peak | |
75fb37cc | 152 | AliITSRecPoint c; |
04366a57 | 153 | MakeCluster(idx[k], nzBins, bins[s], msk[k], c); |
154 | //mi change | |
155 | Int_t milab[10]; | |
156 | for (Int_t ilab=0;ilab<10;ilab++){ | |
157 | milab[ilab]=-2; | |
158 | } | |
159 | Int_t maxi=0,mini=0,maxj=0,minj=0; | |
160 | //AliBin *bmax=&bins[s][idx[k]]; | |
161 | //Float_t max = TMath::Max(TMath::Abs(bmax->GetQ())/5.,3.); | |
162 | Float_t max=3; | |
163 | for (Int_t di=-2; di<=2;di++) | |
164 | for (Int_t dj=-3;dj<=3;dj++){ | |
165 | Int_t index = idx[k]+di+dj*nzBins; | |
166 | if (index<0) continue; | |
167 | if (index>=nMaxBin) continue; | |
168 | AliBin *b=&bins[s][index]; | |
169 | if (TMath::Abs(b->GetQ())>max){ | |
170 | if (di>maxi) maxi=di; | |
171 | if (di<mini) mini=di; | |
172 | if (dj>maxj) maxj=dj; | |
173 | if (dj<minj) minj=dj; | |
174 | // | |
175 | if(digits) { | |
176 | if (TMath::Abs(di)<2&&TMath::Abs(dj)<2){ | |
177 | AliITSdigitSDD* d=(AliITSdigitSDD*)digits->UncheckedAt(b->GetIndex()); | |
178 | for (Int_t itrack=0;itrack<10;itrack++){ | |
179 | Int_t track = (d->GetTracks())[itrack]; | |
180 | if (track>=0) { | |
181 | AddLabel(milab, track); | |
182 | } | |
183 | } | |
184 | } | |
185 | } | |
186 | } | |
187 | } | |
188 | ||
189 | /* | |
190 | Float_t s2 = c.GetSigmaY2()/c.GetQ() - c.GetY()*c.GetY(); | |
191 | Float_t w=par->GetPadPitchWidth(sec); | |
192 | c.SetSigmaY2(s2); | |
193 | if (s2 != 0.) { | |
194 | c.SetSigmaY2(c.GetSigmaY2()*0.108); | |
195 | if (sec<par->GetNInnerSector()) c.SetSigmaY2(c.GetSigmaY2()*2.07); | |
196 | } | |
197 | s2 = c.GetSigmaZ2()/c.GetQ() - c.GetZ()*c.GetZ(); | |
198 | w=par->GetZWidth(); | |
199 | c.SetSigmaZ2(s2); | |
200 | ||
201 | if (s2 != 0.) { | |
202 | c.SetSigmaZ2(c.GetSigmaZ2()*0.169); | |
203 | if (sec<par->GetNInnerSector()) c.SetSigmaZ2(c.GetSigmaZ2()*1.77); | |
204 | } | |
205 | */ | |
206 | ||
04366a57 | 207 | Float_t y=c.GetY(),z=c.GetZ(), q=c.GetQ(); |
208 | y/=q; z/=q; | |
209 | // | |
210 | //Float_t s2 = c.GetSigmaY2()/c.GetQ() - y*y; | |
211 | // c.SetSigmaY2(s2); | |
212 | //s2 = c.GetSigmaZ2()/c.GetQ() - z*z; | |
213 | //c.SetSigmaZ2(s2); | |
214 | // | |
404c1c29 | 215 | |
216 | Float_t yyyy = y; | |
217 | //y=(y-0.5)*fYpitchSDD; | |
218 | //y-=fHwSDD; | |
219 | //y-=fYoffSDD; //delay ? | |
220 | //if (s) y=-y; | |
04366a57 | 221 | |
222 | z=(z-0.5)*fZpitchSDD; | |
223 | z-=fHlSDD; | |
404c1c29 | 224 | Float_t zdet = z; |
225 | // y=-(-y+fYshift[fModule]); | |
226 | // z= -z+fZshift[fModule]; | |
00a7cc50 | 227 | // c.SetY(y); |
228 | // c.SetZ(z); | |
9e4d7193 | 229 | Float_t timebin = GetSeg()->Dpx(0); |
230 | Float_t xdet = cal->GetDriftPath((yyyy-0.5)*timebin,0); | |
404c1c29 | 231 | xdet=xdet/10000.-fHwSDD-fYoffSDD; |
232 | if (s) xdet=-xdet; | |
233 | ||
234 | CorrectPosition(zdet,xdet); | |
235 | ||
236 | y=-(-xdet+fYshift[fModule]); | |
237 | z= -zdet+fZshift[fModule]; | |
238 | ||
ecb9da3c | 239 | q/=12.7; //this WAS consistent with SSD. To be reassessed |
240 | // 23-MAR-2007 | |
241 | Float_t hit[5] = {y, z, 0.0030*0.0030, 0.0020*0.0020, q}; | |
242 | Int_t info[3] = {maxj-minj+1, maxi-mini+1, fNlayer[fModule]}; | |
04366a57 | 243 | |
404c1c29 | 244 | //if (c.GetQ() < 20.) continue; //noise cluster |
04366a57 | 245 | |
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); | |
04366a57 | 256 | } |
257 | } | |
ecb9da3c | 258 | milab[3]=fNdet[fModule]; |
259 | ||
260 | AliITSRecPoint cc(milab,hit,info); | |
261 | cc.SetType(npeaks); | |
262 | ||
263 | if(clusters) new (cl[ncl]) AliITSRecPoint(cc); | |
04366a57 | 264 | else { |
ecb9da3c | 265 | fDetTypeRec->AddRecPoint(cc); |
04366a57 | 266 | } |
267 | ncl++; | |
268 | } | |
269 | } | |
270 | } | |
271 | ||
272 | ||
273 | ||
274 | void AliITSClusterFinderV2SDD::RawdataToClusters(AliRawReader* rawReader,TClonesArray** clusters){ | |
275 | //------------------------------------------------------------ | |
276 | // This function creates ITS clusters from raw data | |
277 | //------------------------------------------------------------ | |
278 | rawReader->Reset(); | |
404c1c29 | 279 | AliITSRawStreamSDDv3 inputSDD(rawReader); |
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; | |
291 | Int_t kNzBins = fNzSDD + 2; | |
292 | Int_t kMaxBin = kNzBins * (fNySDD+2); | |
d7d9347b | 293 | AliBin *binsSDDInit = new AliBin[kMaxBin]; |
294 | AliBin *binsSDD1 = new AliBin[kMaxBin]; | |
295 | AliBin *binsSDD2 = new AliBin[kMaxBin]; | |
04366a57 | 296 | AliBin* bins[2] = {NULL, NULL}; |
297 | ||
298 | // read raw data input stream | |
299 | while (kTRUE) { | |
300 | Bool_t next = input->Next(); | |
301 | if (!next || input->IsNewModule()) { | |
302 | Int_t iModule = input->GetPrevModuleID(); | |
303 | ||
304 | // when all data from a module was read, search for clusters | |
305 | if (bins[0]) { | |
00a7cc50 | 306 | clusters[iModule] = new TClonesArray("AliITSRecPoint"); |
04366a57 | 307 | fModule = iModule; |
308 | FindClustersSDD(bins, kMaxBin, kNzBins, NULL, clusters[iModule]); | |
309 | Int_t nClusters = clusters[iModule]->GetEntriesFast(); | |
310 | nClustersSDD += nClusters; | |
d7d9347b | 311 | bins[0] = bins[1] = NULL; |
312 | ||
04366a57 | 313 | } |
314 | ||
315 | if (!next) break; | |
d7d9347b | 316 | bins[0]=binsSDD1; |
317 | bins[1]=binsSDD2; | |
318 | memcpy(binsSDD1,binsSDDInit,sizeof(AliBin)*kMaxBin); | |
319 | memcpy(binsSDD2,binsSDDInit,sizeof(AliBin)*kMaxBin); | |
320 | ||
04366a57 | 321 | } |
322 | ||
323 | // fill the current digit into the bins array | |
324 | if(input->GetSignal()>=3) { | |
325 | Int_t iz = input->GetCoord1()+1; | |
326 | Int_t side = ((iz <= fNzSDD) ? 0 : 1); | |
327 | iz -= side*fNzSDD; | |
328 | Int_t index = (input->GetCoord2()+1) * kNzBins + iz; | |
329 | bins[side][index].SetQ(input->GetSignal()); | |
330 | bins[side][index].SetMask(1); | |
331 | bins[side][index].SetIndex(index); | |
332 | } | |
333 | } | |
d7d9347b | 334 | delete[] binsSDD1; |
335 | delete[] binsSDD2; | |
336 | delete[] binsSDDInit; | |
04366a57 | 337 | |
338 | Info("FindClustersSDD", "found clusters in ITS SDD: %d", nClustersSDD); | |
339 | ||
340 | } | |
341 | ||
342 | ||
5bfe44ce | 343 | //_________________________________________________________________________ |
344 | void AliITSClusterFinderV2SDD::CorrectPosition(Float_t &z, Float_t&y){ | |
345 | ||
346 | //correction of coordinates using the maps stored in the DB | |
347 | ||
348 | AliITSCalibrationSDD* cal = (AliITSCalibrationSDD*)GetResp(fModule); | |
349 | static const Int_t nbint = cal->GetMapTimeNBin(); | |
350 | static const Int_t nbina = cal->Chips()*cal->Channels(); | |
351 | Float_t stepa = (GetSeg()->Dpz(0))/10000.; //anode pitch in cm | |
352 | Float_t stept = (GetSeg()->Dx()/cal->GetMapTimeNBin()/2.)/10.; | |
404c1c29 | 353 | |
354 | Int_t bint = TMath::Abs((Int_t)(y/stept)); | |
355 | if(y>=0) bint+=(Int_t)(nbint/2.); | |
5bfe44ce | 356 | if(bint>nbint) AliError("Wrong bin number!"); |
357 | ||
404c1c29 | 358 | Int_t bina = TMath::Abs((Int_t)(z/stepa)); |
359 | if(z>=0) bina+=(Int_t)(nbina/2.); | |
5bfe44ce | 360 | if(bina>nbina) AliError("Wrong bin number!"); |
361 | ||
362 | Float_t devz = cal->GetMapACell(bina,bint)/10000.; | |
363 | Float_t devx = cal->GetMapTCell(bina,bint)/10000.; | |
404c1c29 | 364 | z+=devz; |
365 | y+=devx; | |
5bfe44ce | 366 | |
367 | ||
368 | } |