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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 | |
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23 | |
24 | #include "AliITSClusterFinderV2SDD.h" |
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25 | #include "AliITSRecPoint.h" |
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26 | #include "AliITSDetTypeRec.h" |
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27 | #include "AliRawReader.h" |
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28 | #include "AliITSRawStreamSDD.h" |
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29 | #include "AliITSCalibrationSDD.h" |
30 | #include "AliITSDetTypeRec.h" |
31 | #include "AliITSsegmentationSDD.h" |
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32 | #include <TClonesArray.h> |
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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){ |
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45 | |
46 | //Default constructor |
47 | |
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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]; |
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70 | AliITSCalibrationSDD* cal = (AliITSCalibrationSDD*)GetResp(fModule); |
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71 | AliITSresponseSDD* res = (AliITSresponseSDD*)cal->GetResponse(); |
72 | const char *option=res->ZeroSuppOption(); |
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73 | AliITSdigitSDD *d=0; |
74 | Int_t i, ndigits=digits->GetEntriesFast(); |
75 | for (i=0; i<ndigits; i++) { |
76 | d=(AliITSdigitSDD*)digits->UncheckedAt(i); |
77 | Int_t y=d->GetCoord2()+1; //y |
78 | Int_t z=d->GetCoord1()+1; //z |
79 | Int_t q=d->GetSignal(); |
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80 | if(!((strstr(option,"1D")) || (strstr(option,"2D")))){ |
81 | Float_t baseline = cal->GetBaseline(d->GetCoord1()); |
82 | if(q>baseline) q-=(Int_t)baseline; |
83 | else q=0; |
84 | } |
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85 | if(q<cal->GetThresholdAnode(d->GetCoord1())) continue; |
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86 | |
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87 | //if (q<3) continue; |
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88 | |
89 | if (z <= fNzSDD) { |
90 | bins[0][y*kNzBins+z].SetQ(q); |
91 | bins[0][y*kNzBins+z].SetMask(1); |
92 | bins[0][y*kNzBins+z].SetIndex(i); |
93 | } else { |
94 | z-=fNzSDD; |
95 | bins[1][y*kNzBins+z].SetQ(q); |
96 | bins[1][y*kNzBins+z].SetMask(1); |
97 | bins[1][y*kNzBins+z].SetIndex(i); |
98 | } |
99 | } |
100 | |
101 | FindClustersSDD(bins, kMAXBIN, kNzBins, digits); |
102 | |
103 | delete[] bins[0]; |
104 | delete[] bins[1]; |
105 | |
106 | } |
107 | |
108 | void AliITSClusterFinderV2SDD:: |
109 | FindClustersSDD(AliBin* bins[2], Int_t nMaxBin, Int_t nzBins, |
110 | TClonesArray *digits, TClonesArray *clusters) { |
111 | //------------------------------------------------------------ |
112 | // Actual SDD cluster finder |
113 | //------------------------------------------------------------ |
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114 | AliITSCalibrationSDD* cal = (AliITSCalibrationSDD*)GetResp(fModule); |
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115 | Int_t ncl=0; |
116 | TClonesArray &cl=*clusters; |
117 | for (Int_t s=0; s<2; s++) |
118 | for (Int_t i=0; i<nMaxBin; i++) { |
119 | if (bins[s][i].IsUsed()) continue; |
120 | Int_t idx[32]; UInt_t msk[32]; Int_t npeaks=0; |
121 | FindPeaks(i, nzBins, bins[s], idx, msk, npeaks); |
122 | |
123 | if (npeaks>30) continue; |
124 | if (npeaks==0) continue; |
125 | |
126 | Int_t k,l; |
127 | for (k=0; k<npeaks-1; k++){//mark adjacent peaks |
128 | if (idx[k] < 0) continue; //this peak is already removed |
129 | for (l=k+1; l<npeaks; l++) { |
130 | if (idx[l] < 0) continue; //this peak is already removed |
131 | Int_t ki=idx[k]/nzBins, kj=idx[k] - ki*nzBins; |
132 | Int_t li=idx[l]/nzBins, lj=idx[l] - li*nzBins; |
133 | Int_t di=TMath::Abs(ki - li); |
134 | Int_t dj=TMath::Abs(kj - lj); |
135 | if (di>1 || dj>1) continue; |
136 | if (bins[s][idx[k]].GetQ() > bins[s][idx[l]].GetQ()) { |
137 | msk[l]=msk[k]; |
138 | idx[l]*=-1; |
139 | } else { |
140 | msk[k]=msk[l]; |
141 | idx[k]*=-1; |
142 | break; |
143 | } |
144 | } |
145 | } |
146 | |
147 | for (k=0; k<npeaks; k++) { |
148 | MarkPeak(TMath::Abs(idx[k]), nzBins, bins[s], msk[k]); |
149 | } |
150 | |
151 | for (k=0; k<npeaks; k++) { |
152 | if (idx[k] < 0) continue; //removed peak |
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153 | AliITSRecPoint c; |
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154 | MakeCluster(idx[k], nzBins, bins[s], msk[k], c); |
155 | //mi change |
156 | Int_t milab[10]; |
157 | for (Int_t ilab=0;ilab<10;ilab++){ |
158 | milab[ilab]=-2; |
159 | } |
160 | Int_t maxi=0,mini=0,maxj=0,minj=0; |
161 | //AliBin *bmax=&bins[s][idx[k]]; |
162 | //Float_t max = TMath::Max(TMath::Abs(bmax->GetQ())/5.,3.); |
163 | Float_t max=3; |
164 | for (Int_t di=-2; di<=2;di++) |
165 | for (Int_t dj=-3;dj<=3;dj++){ |
166 | Int_t index = idx[k]+di+dj*nzBins; |
167 | if (index<0) continue; |
168 | if (index>=nMaxBin) continue; |
169 | AliBin *b=&bins[s][index]; |
170 | if (TMath::Abs(b->GetQ())>max){ |
171 | if (di>maxi) maxi=di; |
172 | if (di<mini) mini=di; |
173 | if (dj>maxj) maxj=dj; |
174 | if (dj<minj) minj=dj; |
175 | // |
176 | if(digits) { |
177 | if (TMath::Abs(di)<2&&TMath::Abs(dj)<2){ |
178 | AliITSdigitSDD* d=(AliITSdigitSDD*)digits->UncheckedAt(b->GetIndex()); |
179 | for (Int_t itrack=0;itrack<10;itrack++){ |
180 | Int_t track = (d->GetTracks())[itrack]; |
181 | if (track>=0) { |
182 | AddLabel(milab, track); |
183 | } |
184 | } |
185 | } |
186 | } |
187 | } |
188 | } |
189 | |
190 | /* |
191 | Float_t s2 = c.GetSigmaY2()/c.GetQ() - c.GetY()*c.GetY(); |
192 | Float_t w=par->GetPadPitchWidth(sec); |
193 | c.SetSigmaY2(s2); |
194 | if (s2 != 0.) { |
195 | c.SetSigmaY2(c.GetSigmaY2()*0.108); |
196 | if (sec<par->GetNInnerSector()) c.SetSigmaY2(c.GetSigmaY2()*2.07); |
197 | } |
198 | s2 = c.GetSigmaZ2()/c.GetQ() - c.GetZ()*c.GetZ(); |
199 | w=par->GetZWidth(); |
200 | c.SetSigmaZ2(s2); |
201 | |
202 | if (s2 != 0.) { |
203 | c.SetSigmaZ2(c.GetSigmaZ2()*0.169); |
204 | if (sec<par->GetNInnerSector()) c.SetSigmaZ2(c.GetSigmaZ2()*1.77); |
205 | } |
206 | */ |
207 | |
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208 | Float_t y=c.GetY(),z=c.GetZ(), q=c.GetQ(); |
209 | y/=q; z/=q; |
210 | // |
211 | //Float_t s2 = c.GetSigmaY2()/c.GetQ() - y*y; |
212 | // c.SetSigmaY2(s2); |
213 | //s2 = c.GetSigmaZ2()/c.GetQ() - z*z; |
214 | //c.SetSigmaZ2(s2); |
215 | // |
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216 | |
217 | Float_t yyyy = y; |
218 | //y=(y-0.5)*fYpitchSDD; |
219 | //y-=fHwSDD; |
220 | //y-=fYoffSDD; //delay ? |
221 | //if (s) y=-y; |
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222 | |
223 | z=(z-0.5)*fZpitchSDD; |
224 | z-=fHlSDD; |
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225 | Float_t zdet = z; |
226 | // y=-(-y+fYshift[fModule]); |
227 | // z= -z+fZshift[fModule]; |
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228 | // c.SetY(y); |
229 | // c.SetZ(z); |
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230 | Float_t timebin = GetSeg()->Dpx(0); |
231 | Float_t xdet = cal->GetDriftPath((yyyy-0.5)*timebin,0); |
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232 | xdet=xdet/10000.-fHwSDD-fYoffSDD; |
233 | if (s) xdet=-xdet; |
234 | |
235 | CorrectPosition(zdet,xdet); |
236 | |
237 | y=-(-xdet+fYshift[fModule]); |
238 | z= -zdet+fZshift[fModule]; |
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239 | |
240 | q/=5.039; //to have MPV 1 MIP = 86.4 KeV |
241 | q/=16.49; //to be consistent with SSD - provisional 06-APR-2007 |
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242 | Float_t hit[5] = {y, z, 0.0030*0.0030, 0.0020*0.0020, q}; |
243 | Int_t info[3] = {maxj-minj+1, maxi-mini+1, fNlayer[fModule]}; |
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244 | |
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245 | if (c.GetQ() < 20.) continue; //noise cluster |
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246 | |
247 | if (digits) { |
248 | // AliBin *b=&bins[s][idx[k]]; |
249 | // AliITSdigitSDD* d=(AliITSdigitSDD*)digits->UncheckedAt(b->GetIndex()); |
250 | { |
251 | //Int_t lab[3]; |
252 | //lab[0]=(d->GetTracks())[0]; |
253 | //lab[1]=(d->GetTracks())[1]; |
254 | //lab[2]=(d->GetTracks())[2]; |
255 | //CheckLabels(lab); |
256 | CheckLabels2(milab); |
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257 | } |
258 | } |
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259 | milab[3]=fNdet[fModule]; |
260 | |
261 | AliITSRecPoint cc(milab,hit,info); |
262 | cc.SetType(npeaks); |
263 | |
264 | if(clusters) new (cl[ncl]) AliITSRecPoint(cc); |
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265 | else { |
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266 | fDetTypeRec->AddRecPoint(cc); |
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267 | } |
268 | ncl++; |
269 | } |
270 | } |
271 | } |
272 | |
273 | |
274 | |
275 | void AliITSClusterFinderV2SDD::RawdataToClusters(AliRawReader* rawReader,TClonesArray** clusters){ |
276 | //------------------------------------------------------------ |
277 | // This function creates ITS clusters from raw data |
278 | //------------------------------------------------------------ |
279 | rawReader->Reset(); |
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280 | AliITSRawStreamSDD inputSDD(rawReader); |
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281 | FindClustersSDD(&inputSDD,clusters); |
282 | |
283 | } |
284 | |
285 | void AliITSClusterFinderV2SDD::FindClustersSDD(AliITSRawStream* input, |
286 | TClonesArray** clusters) |
287 | { |
288 | //------------------------------------------------------------ |
289 | // Actual SDD cluster finder for raw data |
290 | //------------------------------------------------------------ |
291 | Int_t nClustersSDD = 0; |
292 | Int_t kNzBins = fNzSDD + 2; |
293 | Int_t kMaxBin = kNzBins * (fNySDD+2); |
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294 | AliBin *binsSDDInit = new AliBin[kMaxBin]; |
295 | AliBin *binsSDD1 = new AliBin[kMaxBin]; |
296 | AliBin *binsSDD2 = new AliBin[kMaxBin]; |
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297 | AliBin* bins[2] = {NULL, NULL}; |
298 | |
299 | // read raw data input stream |
300 | while (kTRUE) { |
301 | Bool_t next = input->Next(); |
302 | if (!next || input->IsNewModule()) { |
303 | Int_t iModule = input->GetPrevModuleID(); |
304 | |
305 | // when all data from a module was read, search for clusters |
306 | if (bins[0]) { |
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307 | clusters[iModule] = new TClonesArray("AliITSRecPoint"); |
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308 | fModule = iModule; |
309 | FindClustersSDD(bins, kMaxBin, kNzBins, NULL, clusters[iModule]); |
310 | Int_t nClusters = clusters[iModule]->GetEntriesFast(); |
311 | nClustersSDD += nClusters; |
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312 | bins[0] = bins[1] = NULL; |
313 | |
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314 | } |
315 | |
316 | if (!next) break; |
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317 | bins[0]=binsSDD1; |
318 | bins[1]=binsSDD2; |
319 | memcpy(binsSDD1,binsSDDInit,sizeof(AliBin)*kMaxBin); |
320 | memcpy(binsSDD2,binsSDDInit,sizeof(AliBin)*kMaxBin); |
321 | |
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322 | } |
323 | |
324 | // fill the current digit into the bins array |
325 | if(input->GetSignal()>=3) { |
326 | Int_t iz = input->GetCoord1()+1; |
327 | Int_t side = ((iz <= fNzSDD) ? 0 : 1); |
328 | iz -= side*fNzSDD; |
329 | Int_t index = (input->GetCoord2()+1) * kNzBins + iz; |
330 | bins[side][index].SetQ(input->GetSignal()); |
331 | bins[side][index].SetMask(1); |
332 | bins[side][index].SetIndex(index); |
333 | } |
334 | } |
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335 | delete[] binsSDD1; |
336 | delete[] binsSDD2; |
337 | delete[] binsSDDInit; |
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338 | |
339 | Info("FindClustersSDD", "found clusters in ITS SDD: %d", nClustersSDD); |
340 | |
341 | } |
342 | |
343 | |
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344 | //_________________________________________________________________________ |
345 | void AliITSClusterFinderV2SDD::CorrectPosition(Float_t &z, Float_t&y){ |
346 | |
347 | //correction of coordinates using the maps stored in the DB |
348 | |
349 | AliITSCalibrationSDD* cal = (AliITSCalibrationSDD*)GetResp(fModule); |
350 | static const Int_t nbint = cal->GetMapTimeNBin(); |
351 | static const Int_t nbina = cal->Chips()*cal->Channels(); |
352 | Float_t stepa = (GetSeg()->Dpz(0))/10000.; //anode pitch in cm |
353 | Float_t stept = (GetSeg()->Dx()/cal->GetMapTimeNBin()/2.)/10.; |
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354 | |
355 | Int_t bint = TMath::Abs((Int_t)(y/stept)); |
356 | if(y>=0) bint+=(Int_t)(nbint/2.); |
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357 | if(bint>nbint) AliError("Wrong bin number!"); |
358 | |
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359 | Int_t bina = TMath::Abs((Int_t)(z/stepa)); |
360 | if(z>=0) bina+=(Int_t)(nbina/2.); |
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361 | if(bina>nbina) AliError("Wrong bin number!"); |
362 | |
363 | Float_t devz = cal->GetMapACell(bina,bint)/10000.; |
364 | Float_t devx = cal->GetMapTCell(bina,bint)/10000.; |
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365 | z+=devz; |
366 | y+=devx; |
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367 | |
368 | |
369 | } |