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7f4044f0 | 1 | //------------------------------------------------------------------------- |
2 | // Implementation of the ITS clusterer V2 class | |
3 | // | |
4 | // Origin: Iouri Belikov, CERN, Jouri.Belikov@cern.ch | |
5 | //------------------------------------------------------------------------- | |
60b9526b | 6 | |
7f4044f0 | 7 | |
8 | #include "AliRun.h" | |
9 | ||
10 | #include "AliITSclustererV2.h" | |
11 | #include "AliITSclusterV2.h" | |
7d62fb64 | 12 | #include "AliITSDetTypeRec.h" |
7941072e | 13 | #include "AliRawReader.h" |
c391f9d9 | 14 | #include "AliITSRawStreamSPD.h" |
15 | #include "AliITSRawStreamSDD.h" | |
16 | #include "AliITSRawStreamSSD.h" | |
7f4044f0 | 17 | |
7f4044f0 | 18 | #include <TFile.h> |
19 | #include <TTree.h> | |
20 | #include <TClonesArray.h> | |
79c75366 | 21 | #include "AliITSgeomTGeo.h" |
e869281d | 22 | #include "AliITSdigitSPD.h" |
23 | #include "AliITSdigitSDD.h" | |
24 | #include "AliITSdigitSSD.h" | |
5d12ce38 | 25 | #include "AliMC.h" |
7f4044f0 | 26 | |
27 | ClassImp(AliITSclustererV2) | |
28 | ||
29 | extern AliRun *gAlice; | |
30 | ||
e56160b8 | 31 | AliITSclustererV2::AliITSclustererV2(): |
32 | fNModules(0), | |
33 | fEvent(0), | |
34 | fI(0), | |
35 | fLastSPD1(0), | |
36 | fNySPD(0), | |
37 | fNzSPD(0), | |
38 | fYpitchSPD(0), | |
39 | fZ1pitchSPD(0), | |
40 | fZ2pitchSPD(0), | |
41 | fHwSPD(0), | |
42 | fHlSPD(0), | |
43 | fNySDD(0), | |
44 | fNzSDD(0), | |
45 | fYpitchSDD(0), | |
46 | fZpitchSDD(0), | |
47 | fHwSDD(0), | |
48 | fHlSDD(0), | |
49 | fYoffSDD(0), | |
50 | fLastSSD1(0), | |
51 | fYpitchSSD(0), | |
52 | fHwSSD(0), | |
53 | fHlSSD(0), | |
54 | fTanP(0), | |
55 | fTanN(0){ | |
56 | //default constructor | |
57 | } | |
79c75366 | 58 | AliITSclustererV2::AliITSclustererV2(const Char_t *geom): |
59 | fNModules(AliITSgeomTGeo::GetNModules()), | |
e56160b8 | 60 | fEvent(0), |
61 | fI(0), | |
79c75366 | 62 | fLastSPD1(AliITSgeomTGeo::GetModuleIndex(2,1,1)-1), |
e56160b8 | 63 | fNySPD(256), |
64 | fNzSPD(160), | |
65 | fYpitchSPD(0.0050), | |
66 | fZ1pitchSPD(0.0425), | |
67 | fZ2pitchSPD(0.0625), | |
68 | fHwSPD(0.64), | |
69 | fHlSPD(3.48), | |
70 | fNySDD(256), | |
71 | fNzSDD(256), | |
72 | fYpitchSDD(0.01825), | |
73 | fZpitchSDD(0.02940), | |
74 | fHwSDD(3.5085), | |
75 | fHlSDD(3.7632), | |
76 | fYoffSDD(0.0425), | |
79c75366 | 77 | fLastSSD1(AliITSgeomTGeo::GetModuleIndex(6,1,1)-1), |
e56160b8 | 78 | fYpitchSSD(0.0095), |
79 | fHwSSD(3.65), | |
80 | fHlSSD(2.00), | |
81 | fTanP(0.0275), | |
82 | fTanN(0.0075) { | |
7f4044f0 | 83 | //------------------------------------------------------------ |
84 | // Standard constructor | |
85 | //------------------------------------------------------------ | |
79c75366 | 86 | if (geom) { |
87 | AliWarning("\"geom\" is actually a dummy argument !"); | |
c630aafd | 88 | } |
7f4044f0 | 89 | Int_t m; |
79c75366 | 90 | for (m=0; m<fNModules; m++) { |
91 | Int_t lay,lad,det; AliITSgeomTGeo::GetModuleId(m,lay,lad,det); | |
92 | const TGeoHMatrix *tm=AliITSgeomTGeo::GetTracking2LocalMatrix(m); | |
93 | fYshift[m] = (tm->Inverse()).GetTranslation()[1]; | |
94 | fZshift[m] = (tm->Inverse()).GetTranslation()[2]; | |
95 | fNdet[m] = (lad-1)*AliITSgeomTGeo::GetNDetectors(lay) + (det-1); | |
e43c066c | 96 | fNlayer[m] = lay-1; |
7f4044f0 | 97 | } |
98 | ||
99 | //SPD geometry | |
7f4044f0 | 100 | fYSPD[0]=0.5*fYpitchSPD; |
101 | for (m=1; m<fNySPD; m++) fYSPD[m]=fYSPD[m-1]+fYpitchSPD; | |
102 | fZSPD[0]=fZ1pitchSPD; | |
103 | for (m=1; m<fNzSPD; m++) { | |
104 | Double_t dz=fZ1pitchSPD; | |
105 | if (m==31 || m==32 || m==63 || m==64 || m==95 || m==96 || | |
106 | m==127 || m==128) dz=fZ2pitchSPD; | |
107 | fZSPD[m]=fZSPD[m-1]+dz; | |
108 | } | |
109 | for (m=0; m<fNzSPD; m++) { | |
110 | Double_t dz=0.5*fZ1pitchSPD; | |
111 | if (m==31 || m==32 || m==63 || m==64 || m==95 || m==96 || | |
112 | m==127 || m==128) dz=0.5*fZ2pitchSPD; | |
113 | fZSPD[m]-=dz; | |
114 | } | |
115 | ||
7f4044f0 | 116 | } |
117 | ||
e3d91d99 | 118 | |
c630aafd | 119 | Int_t AliITSclustererV2::Digits2Clusters(TTree *dTree, TTree *cTree) { |
7f4044f0 | 120 | //------------------------------------------------------------ |
121 | // This function creates ITS clusters | |
122 | //------------------------------------------------------------ | |
123 | Int_t ncl=0; | |
7f4044f0 | 124 | |
7f4044f0 | 125 | if (!dTree) { |
c630aafd | 126 | Error("Digits2Clusters","Can't get the tree with digits !"); |
127 | return 1; | |
7f4044f0 | 128 | } |
129 | ||
130 | TClonesArray *digitsSPD=new TClonesArray("AliITSdigitSPD",3000); | |
131 | dTree->SetBranchAddress("ITSDigitsSPD",&digitsSPD); | |
132 | TClonesArray *digitsSDD=new TClonesArray("AliITSdigitSDD",3000); | |
133 | dTree->SetBranchAddress("ITSDigitsSDD",&digitsSDD); | |
134 | TClonesArray *digitsSSD=new TClonesArray("AliITSdigitSSD",3000); | |
135 | dTree->SetBranchAddress("ITSDigitsSSD",&digitsSSD); | |
136 | ||
7f4044f0 | 137 | TClonesArray *clusters=new TClonesArray("AliITSclusterV2",1000); |
c630aafd | 138 | TBranch *branch=cTree->GetBranch("Clusters"); |
139 | if (!branch) cTree->Branch("Clusters",&clusters); | |
140 | else branch->SetAddress(&clusters); | |
141 | ||
142 | Int_t mmax=(Int_t)dTree->GetEntries(); | |
cbca22ab | 143 | if (mmax!=fNModules) { |
144 | Error("Digits2Clusters","Number of entries != number of modules !"); | |
145 | return 1; | |
146 | } | |
7f4044f0 | 147 | |
148 | for (fI=0; fI<mmax; fI++) { | |
149 | dTree->GetEvent(fI); | |
150 | ||
151 | if (digitsSPD->GetEntriesFast()!=0) | |
babd135a | 152 | FindClustersSPD(digitsSPD,clusters); |
153 | else | |
154 | if(digitsSDD->GetEntriesFast()!=0) | |
155 | FindClustersSDD(digitsSDD,clusters); | |
156 | else if(digitsSSD->GetEntriesFast()!=0) | |
157 | FindClustersSSD(digitsSSD,clusters); | |
158 | ||
7f4044f0 | 159 | ncl+=clusters->GetEntriesFast(); |
160 | ||
c630aafd | 161 | cTree->Fill(); |
7f4044f0 | 162 | |
163 | digitsSPD->Clear(); | |
164 | digitsSDD->Clear(); | |
165 | digitsSSD->Clear(); | |
166 | clusters->Clear(); | |
167 | } | |
c630aafd | 168 | |
169 | //cTree->Write(); | |
7f4044f0 | 170 | |
171 | delete clusters; | |
172 | ||
173 | delete digitsSPD; | |
174 | delete digitsSDD; | |
175 | delete digitsSSD; | |
176 | ||
7941072e | 177 | //delete dTree; |
178 | ||
c630aafd | 179 | Info("Digits2Clusters","Number of found clusters : %d",ncl); |
7f4044f0 | 180 | |
c630aafd | 181 | return 0; |
7f4044f0 | 182 | } |
183 | ||
7941072e | 184 | void AliITSclustererV2::Digits2Clusters(AliRawReader* rawReader) { |
c391f9d9 | 185 | //------------------------------------------------------------ |
186 | // This function creates ITS clusters from raw data | |
187 | //------------------------------------------------------------ | |
33c3c91a | 188 | AliRunLoader* runLoader = AliRunLoader::Instance(); |
7941072e | 189 | if (!runLoader) { |
190 | Error("Digits2Clusters", "no run loader found"); | |
191 | return; | |
192 | } | |
babd135a | 193 | runLoader->LoadKinematics(); |
7941072e | 194 | AliLoader* itsLoader = runLoader->GetLoader("ITSLoader"); |
195 | if (!itsLoader) { | |
196 | Error("Digits2Clusters", "no loader for ITS found"); | |
c391f9d9 | 197 | return; |
198 | } | |
7941072e | 199 | if (!itsLoader->TreeR()) itsLoader->MakeTree("R"); |
200 | TTree* cTree = itsLoader->TreeR(); | |
c391f9d9 | 201 | |
c391f9d9 | 202 | TClonesArray *array=new TClonesArray("AliITSclusterV2",1000); |
7941072e | 203 | cTree->Branch("Clusters",&array); |
c391f9d9 | 204 | delete array; |
205 | ||
f1e0c1c5 | 206 | TClonesArray** clusters = new TClonesArray*[fNModules]; |
04fa961a | 207 | for (Int_t iModule = 0; iModule < fNModules; iModule++) { |
208 | clusters[iModule] = NULL; | |
209 | } | |
c391f9d9 | 210 | // one TClonesArray per module |
211 | ||
7941072e | 212 | rawReader->Reset(); |
213 | AliITSRawStreamSPD inputSPD(rawReader); | |
c391f9d9 | 214 | FindClustersSPD(&inputSPD, clusters); |
7941072e | 215 | |
216 | rawReader->Reset(); | |
217 | AliITSRawStreamSDD inputSDD(rawReader); | |
c391f9d9 | 218 | FindClustersSDD(&inputSDD, clusters); |
7941072e | 219 | |
220 | rawReader->Reset(); | |
221 | AliITSRawStreamSSD inputSSD(rawReader); | |
c391f9d9 | 222 | FindClustersSSD(&inputSSD, clusters); |
223 | ||
224 | // write all clusters to the tree | |
225 | Int_t nClusters = 0; | |
c157c94e | 226 | TClonesArray *emptyArray=new TClonesArray("AliITSclusterV2"); |
c391f9d9 | 227 | for (Int_t iModule = 0; iModule < fNModules; iModule++) { |
04fa961a | 228 | array = clusters[iModule]; |
c391f9d9 | 229 | if (!array) { |
230 | Error("Digits2Clusters", "data for module %d missing!", iModule); | |
c157c94e | 231 | array = emptyArray; |
c391f9d9 | 232 | } |
7941072e | 233 | cTree->SetBranchAddress("Clusters", &array); |
234 | cTree->Fill(); | |
c391f9d9 | 235 | nClusters += array->GetEntriesFast(); |
c391f9d9 | 236 | } |
c157c94e | 237 | delete emptyArray; |
238 | ||
7941072e | 239 | itsLoader->WriteRecPoints("OVERWRITE"); |
c391f9d9 | 240 | |
04fa961a | 241 | delete[] clusters; |
242 | ||
c391f9d9 | 243 | Info("Digits2Clusters", "total number of found clusters in ITS: %d\n", |
244 | nClusters); | |
245 | } | |
246 | ||
7f4044f0 | 247 | //**** Fast clusters ******************************* |
248 | #include "TParticle.h" | |
249 | ||
7d62fb64 | 250 | //#include "AliITS.h" |
7f4044f0 | 251 | #include "AliITSmodule.h" |
252 | #include "AliITSRecPoint.h" | |
253 | #include "AliITSsimulationFastPoints.h" | |
254 | #include "AliITSRecPoint.h" | |
255 | ||
7d62fb64 | 256 | |
7f4044f0 | 257 | static void CheckLabels(Int_t lab[3]) { |
258 | //------------------------------------------------------------ | |
259 | // Tries to find mother's labels | |
260 | //------------------------------------------------------------ | |
33c3c91a | 261 | AliRunLoader *rl = AliRunLoader::Instance(); |
60b9526b | 262 | TTree *trK=(TTree*)rl->TreeK(); |
263 | ||
264 | if(trK){ | |
7f4044f0 | 265 | Int_t label=lab[0]; |
266 | if (label>=0) { | |
60b9526b | 267 | TParticle *part=(TParticle*)gAlice->GetMCApp()->Particle(label); |
268 | label=-3; | |
269 | while (part->P() < 0.005) { | |
270 | Int_t m=part->GetFirstMother(); | |
271 | if (m<0) { | |
272 | Info("CheckLabels","Primary momentum: %f",part->P()); | |
273 | break; | |
274 | } | |
275 | if (part->GetStatusCode()>0) { | |
276 | Info("CheckLabels","Primary momentum: %f",part->P()); | |
277 | break; | |
278 | } | |
279 | label=m; | |
280 | part=(TParticle*)gAlice->GetMCApp()->Particle(label); | |
281 | } | |
5af4a2d0 | 282 | if(lab[1]<0){ |
283 | lab[1]=label; | |
284 | } | |
285 | else if (lab[2]<0) { | |
286 | lab[2]=label; | |
287 | } | |
288 | else { | |
289 | // cerr<<"CheckLabels : No empty labels !\n"; | |
290 | } | |
7f4044f0 | 291 | } |
60b9526b | 292 | } |
7f4044f0 | 293 | } |
7d62fb64 | 294 | |
295 | /* | |
babd135a | 296 | static void CheckLabels(Int_t lab[3]) { |
297 | //------------------------------------------------------------ | |
298 | // Tries to find mother's labels | |
299 | //------------------------------------------------------------ | |
300 | ||
0e986ef9 | 301 | if(lab[0]<0 && lab[1]<0 && lab[2]<0) return; // In case of no labels just exit |
302 | ||
babd135a | 303 | Int_t ntracks = gAlice->GetMCApp()->GetNtrack(); |
304 | for (Int_t i=0;i<3;i++){ | |
305 | Int_t label = lab[i]; | |
306 | if (label>=0 && label<ntracks) { | |
307 | TParticle *part=(TParticle*)gAlice->GetMCApp()->Particle(label); | |
308 | if (part->P() < 0.005) { | |
309 | Int_t m=part->GetFirstMother(); | |
310 | if (m<0) { | |
311 | continue; | |
312 | } | |
313 | if (part->GetStatusCode()>0) { | |
314 | continue; | |
315 | } | |
316 | lab[i]=m; | |
317 | } | |
318 | } | |
319 | } | |
320 | ||
321 | } | |
7d62fb64 | 322 | */ |
babd135a | 323 | static void CheckLabels2(Int_t lab[10]) { |
324 | //------------------------------------------------------------ | |
325 | // Tries to find mother's labels | |
326 | //------------------------------------------------------------ | |
33c3c91a | 327 | AliRunLoader *rl = AliRunLoader::Instance(); |
60b9526b | 328 | TTree *trK=(TTree*)rl->TreeK(); |
0e986ef9 | 329 | |
60b9526b | 330 | if(trK){ |
331 | Int_t nlabels =0; | |
332 | for (Int_t i=0;i<10;i++) if (lab[i]>=0) nlabels++; | |
333 | if(nlabels == 0) return; // In case of no labels just exit | |
e43c066c | 334 | |
60b9526b | 335 | Int_t ntracks = gAlice->GetMCApp()->GetNtrack(); |
336 | ||
337 | for (Int_t i=0;i<10;i++){ | |
338 | Int_t label = lab[i]; | |
339 | if (label>=0 && label<ntracks) { | |
340 | TParticle *part=(TParticle*)gAlice->GetMCApp()->Particle(label); | |
341 | if (part->P() < 0.02) { | |
e43c066c | 342 | Int_t m=part->GetFirstMother(); |
343 | if (m<0) { | |
344 | continue; | |
345 | } | |
346 | if (part->GetStatusCode()>0) { | |
347 | continue; | |
348 | } | |
349 | lab[i]=m; | |
60b9526b | 350 | } |
351 | else | |
352 | if (part->P() < 0.12 && nlabels>3) { | |
353 | lab[i]=-2; | |
354 | nlabels--; | |
355 | } | |
e43c066c | 356 | } |
60b9526b | 357 | else{ |
358 | if ( (label>ntracks||label <0) && nlabels>3) { | |
e43c066c | 359 | lab[i]=-2; |
360 | nlabels--; | |
361 | } | |
60b9526b | 362 | } |
363 | } | |
364 | if (nlabels>3){ | |
365 | for (Int_t i=0;i<10;i++){ | |
366 | if (nlabels>3){ | |
367 | Int_t label = lab[i]; | |
368 | if (label>=0 && label<ntracks) { | |
369 | TParticle *part=(TParticle*)gAlice->GetMCApp()->Particle(label); | |
370 | if (part->P() < 0.1) { | |
371 | lab[i]=-2; | |
372 | nlabels--; | |
373 | } | |
e43c066c | 374 | } |
babd135a | 375 | } |
babd135a | 376 | } |
e43c066c | 377 | } |
e43c066c | 378 | |
60b9526b | 379 | //compress labels -- if multi-times the same |
380 | Int_t lab2[10]; | |
381 | for (Int_t i=0;i<10;i++) lab2[i]=-2; | |
382 | for (Int_t i=0;i<10 ;i++){ | |
383 | if (lab[i]<0) continue; | |
384 | for (Int_t j=0;j<10 &&lab2[j]!=lab[i];j++){ | |
385 | if (lab2[j]<0) { | |
386 | lab2[j]= lab[i]; | |
387 | break; | |
388 | } | |
babd135a | 389 | } |
390 | } | |
60b9526b | 391 | for (Int_t j=0;j<10;j++) lab[j]=lab2[j]; |
babd135a | 392 | } |
babd135a | 393 | } |
394 | ||
395 | static void AddLabel(Int_t lab[10], Int_t label) { | |
60b9526b | 396 | // add label of the particle in the kine tree which originates this cluster |
397 | // (used for reconstruction of MC data only, for comparison purposes) | |
33c3c91a | 398 | AliRunLoader *rl = AliRunLoader::Instance(); |
60b9526b | 399 | TTree *trK=(TTree*)rl->TreeK(); |
0e986ef9 | 400 | |
60b9526b | 401 | if(trK){ |
402 | if(label<0) return; // In case of no label just exit | |
0e986ef9 | 403 | |
60b9526b | 404 | Int_t ntracks = gAlice->GetMCApp()->GetNtrack(); |
405 | if (label>ntracks) return; | |
406 | for (Int_t i=0;i<10;i++){ | |
407 | // if (label<0) break; | |
408 | if (lab[i]==label) break; | |
409 | if (lab[i]<0) { | |
410 | lab[i]= label; | |
411 | break; | |
412 | } | |
babd135a | 413 | } |
414 | } | |
415 | } | |
7f4044f0 | 416 | |
1cca57bf | 417 | void AliITSclustererV2::RecPoints2Clusters |
418 | (const TClonesArray *points, Int_t idx, TClonesArray *clusters) { | |
7f4044f0 | 419 | //------------------------------------------------------------ |
1cca57bf | 420 | // Conversion AliITSRecPoint -> AliITSclusterV2 for the ITS |
421 | // subdetector indexed by idx | |
7f4044f0 | 422 | //------------------------------------------------------------ |
423 | TClonesArray &cl=*clusters; | |
424 | Int_t ncl=points->GetEntriesFast(); | |
425 | for (Int_t i=0; i<ncl; i++) { | |
426 | AliITSRecPoint *p = (AliITSRecPoint *)points->UncheckedAt(i); | |
427 | Float_t lp[5]; | |
00a7cc50 | 428 | lp[0]=-(-p->GetDetLocalX()+fYshift[idx]); if (idx<=fLastSPD1) lp[0]*=-1; //SPD1 |
f363d377 | 429 | lp[1]= -p->GetZ()+fZshift[idx]; |
00a7cc50 | 430 | lp[2]=p->GetSigmaDetLocX2(); |
1cca57bf | 431 | lp[3]=p->GetSigmaZ2(); |
b6087704 | 432 | lp[4]=p->GetQ()*36./23333.; //electrons -> ADC |
7f4044f0 | 433 | Int_t lab[4]; |
434 | lab[0]=p->GetLabel(0); lab[1]=p->GetLabel(1); lab[2]=p->GetLabel(2); | |
1cca57bf | 435 | lab[3]=fNdet[idx]; |
7f4044f0 | 436 | CheckLabels(lab); |
babd135a | 437 | Int_t dummy[3]={0,0,0}; |
438 | new (cl[i]) AliITSclusterV2(lab,lp, dummy); | |
7f4044f0 | 439 | } |
440 | } | |
441 | ||
7f4044f0 | 442 | //*********************************** |
443 | ||
7f4044f0 | 444 | |
445 | void AliITSclustererV2:: | |
446 | FindCluster(Int_t k,Int_t maxz,AliBin *bins,Int_t &n,Int_t *idx) { | |
447 | //------------------------------------------------------------ | |
448 | // returns an array of indices of digits belonging to the cluster | |
449 | // (needed when the segmentation is not regular) | |
450 | //------------------------------------------------------------ | |
451 | if (n<200) idx[n++]=bins[k].GetIndex(); | |
452 | bins[k].Use(); | |
453 | ||
454 | if (bins[k-maxz].IsNotUsed()) FindCluster(k-maxz,maxz,bins,n,idx); | |
455 | if (bins[k-1 ].IsNotUsed()) FindCluster(k-1 ,maxz,bins,n,idx); | |
456 | if (bins[k+maxz].IsNotUsed()) FindCluster(k+maxz,maxz,bins,n,idx); | |
457 | if (bins[k+1 ].IsNotUsed()) FindCluster(k+1 ,maxz,bins,n,idx); | |
458 | /* | |
459 | if (bins[k-maxz-1].IsNotUsed()) FindCluster(k-maxz-1,maxz,bins,n,idx); | |
460 | if (bins[k-maxz+1].IsNotUsed()) FindCluster(k-maxz+1,maxz,bins,n,idx); | |
461 | if (bins[k+maxz-1].IsNotUsed()) FindCluster(k+maxz-1,maxz,bins,n,idx); | |
462 | if (bins[k+maxz+1].IsNotUsed()) FindCluster(k+maxz+1,maxz,bins,n,idx); | |
463 | */ | |
464 | } | |
465 | ||
466 | void AliITSclustererV2:: | |
467 | FindClustersSPD(const TClonesArray *digits, TClonesArray *clusters) { | |
468 | //------------------------------------------------------------ | |
469 | // Actual SPD cluster finder | |
470 | //------------------------------------------------------------ | |
c391f9d9 | 471 | Int_t kNzBins = fNzSPD + 2; |
472 | const Int_t kMAXBIN=kNzBins*(fNySPD+2); | |
7f4044f0 | 473 | |
474 | Int_t ndigits=digits->GetEntriesFast(); | |
475 | AliBin *bins=new AliBin[kMAXBIN]; | |
476 | ||
477 | Int_t k; | |
478 | AliITSdigitSPD *d=0; | |
479 | for (k=0; k<ndigits; k++) { | |
480 | d=(AliITSdigitSPD*)digits->UncheckedAt(k); | |
481 | Int_t i=d->GetCoord2()+1; //y | |
482 | Int_t j=d->GetCoord1()+1; | |
c391f9d9 | 483 | bins[i*kNzBins+j].SetIndex(k); |
484 | bins[i*kNzBins+j].SetMask(1); | |
7f4044f0 | 485 | } |
486 | ||
487 | Int_t n=0; TClonesArray &cl=*clusters; | |
488 | for (k=0; k<kMAXBIN; k++) { | |
489 | if (!bins[k].IsNotUsed()) continue; | |
490 | Int_t ni=0, idx[200]; | |
c391f9d9 | 491 | FindCluster(k,kNzBins,bins,ni,idx); |
c630aafd | 492 | if (ni==200) { |
493 | Info("FindClustersSPD","Too big cluster !"); | |
494 | continue; | |
495 | } | |
babd135a | 496 | Int_t milab[10]; |
497 | for (Int_t ilab=0;ilab<10;ilab++){ | |
498 | milab[ilab]=-2; | |
499 | } | |
500 | ||
7f4044f0 | 501 | d=(AliITSdigitSPD*)digits->UncheckedAt(idx[0]); |
502 | Int_t ymin=d->GetCoord2(),ymax=ymin; | |
503 | Int_t zmin=d->GetCoord1(),zmax=zmin; | |
e43c066c | 504 | |
7f4044f0 | 505 | for (Int_t l=0; l<ni; l++) { |
506 | d=(AliITSdigitSPD*)digits->UncheckedAt(idx[l]); | |
507 | ||
508 | if (ymin > d->GetCoord2()) ymin=d->GetCoord2(); | |
509 | if (ymax < d->GetCoord2()) ymax=d->GetCoord2(); | |
510 | if (zmin > d->GetCoord1()) zmin=d->GetCoord1(); | |
511 | if (zmax < d->GetCoord1()) zmax=d->GetCoord1(); | |
e43c066c | 512 | // MI addition - find all labels in cluster |
513 | for (Int_t dlab=0;dlab<10;dlab++){ | |
babd135a | 514 | Int_t digitlab = (d->GetTracks())[dlab]; |
515 | if (digitlab<0) continue; | |
e43c066c | 516 | AddLabel(milab,digitlab); |
babd135a | 517 | } |
e43c066c | 518 | if (milab[9]>0) CheckLabels2(milab); |
519 | } | |
babd135a | 520 | CheckLabels2(milab); |
e43c066c | 521 | // |
522 | //Int_t idy = (fNlayer[fI]==0)? 2:3; | |
523 | //for (Int_t iz=zmin; iz<=zmax;iz+=2) | |
524 | //Int_t idy = (ymax-ymin)/4.; // max 2 clusters | |
525 | Int_t idy = 0; // max 2 clusters | |
526 | if (fNlayer[fI]==0 &&idy<3) idy=3; | |
527 | if (fNlayer[fI]==1 &&idy<4) idy=4; | |
528 | Int_t idz =3; | |
529 | for (Int_t iz=zmin; iz<=zmax;iz+=idz) | |
530 | for (Int_t iy=ymin; iy<=ymax;iy+=idy){ | |
531 | // | |
e8f4b841 | 532 | Int_t nodigits =0; |
0e986ef9 | 533 | Float_t y=0.,z=0.,q=0.; |
e43c066c | 534 | for (Int_t l=0; l<ni; l++) { |
535 | d=(AliITSdigitSPD*)digits->UncheckedAt(idx[l]); | |
536 | if (zmax-zmin>=idz || ymax-ymin>=idy){ | |
537 | if (TMath::Abs( d->GetCoord2()-iy)>0.75*idy) continue; | |
538 | if (TMath::Abs( d->GetCoord1()-iz)>0.75*idz) continue; | |
539 | } | |
e8f4b841 | 540 | nodigits++; |
0e986ef9 | 541 | Float_t qq=d->GetSignal(); |
e43c066c | 542 | y+=qq*fYSPD[d->GetCoord2()]; z+=qq*fZSPD[d->GetCoord1()]; q+=qq; |
543 | ||
544 | } | |
e8f4b841 | 545 | if (nodigits==0) continue; |
e43c066c | 546 | y/=q; z/=q; |
547 | y-=fHwSPD; z-=fHlSPD; | |
548 | ||
549 | Float_t lp[5]; | |
550 | lp[0]=-(-y+fYshift[fI]); if (fI<=fLastSPD1) lp[0]=-lp[0]; | |
551 | lp[1]= -z+fZshift[fI]; | |
552 | // Float_t factor=TMath::Max(double(ni-3.),1.5); | |
553 | Float_t factory=TMath::Max(ymax-ymin,1); | |
554 | Float_t factorz=TMath::Max(zmax-zmin,1); | |
555 | factory*= factory; | |
556 | factorz*= factorz; | |
557 | //lp[2]= (fYpitchSPD*fYpitchSPD/12.)*factory; | |
558 | //lp[3]= (fZ1pitchSPD*fZ1pitchSPD/12.)*factorz; | |
559 | lp[2]= (fYpitchSPD*fYpitchSPD/12.); | |
560 | lp[3]= (fZ1pitchSPD*fZ1pitchSPD/12.); | |
561 | //lp[4]= q; | |
562 | lp[4]= (zmax-zmin+1)*100 + (ymax-ymin+1); | |
563 | ||
564 | milab[3]=fNdet[fI]; | |
565 | d=(AliITSdigitSPD*)digits->UncheckedAt(idx[0]); | |
566 | Int_t info[3] = {ymax-ymin+1,zmax-zmin+1,fNlayer[fI]}; | |
567 | new (cl[n]) AliITSclusterV2(milab,lp,info); n++; | |
568 | } | |
7f4044f0 | 569 | } |
e43c066c | 570 | |
38bcdcc1 | 571 | delete [] bins; |
7f4044f0 | 572 | } |
573 | ||
c391f9d9 | 574 | void AliITSclustererV2::FindClustersSPD(AliITSRawStream* input, |
575 | TClonesArray** clusters) | |
576 | { | |
577 | //------------------------------------------------------------ | |
578 | // Actual SPD cluster finder for raw data | |
579 | //------------------------------------------------------------ | |
580 | ||
581 | Int_t nClustersSPD = 0; | |
582 | Int_t kNzBins = fNzSPD + 2; | |
583 | Int_t kNyBins = fNySPD + 2; | |
584 | Int_t kMaxBin = kNzBins * kNyBins; | |
5102d526 | 585 | AliBin *binsSPD = new AliBin[kMaxBin]; |
586 | AliBin *binsSPDInit = new AliBin[kMaxBin]; | |
587 | AliBin *bins = NULL; | |
c391f9d9 | 588 | |
589 | // read raw data input stream | |
590 | while (kTRUE) { | |
591 | Bool_t next = input->Next(); | |
592 | if (!next || input->IsNewModule()) { | |
593 | Int_t iModule = input->GetPrevModuleID(); | |
594 | ||
595 | // when all data from a module was read, search for clusters | |
596 | if (bins) { | |
597 | clusters[iModule] = new TClonesArray("AliITSclusterV2"); | |
598 | Int_t nClusters = 0; | |
599 | ||
600 | for (Int_t iBin = 0; iBin < kMaxBin; iBin++) { | |
601 | if (bins[iBin].IsUsed()) continue; | |
602 | Int_t nBins = 0; | |
603 | Int_t idxBins[200]; | |
604 | FindCluster(iBin, kNzBins, bins, nBins, idxBins); | |
605 | if (nBins == 200) { | |
606 | Error("FindClustersSPD", "SPD: Too big cluster !\n"); | |
607 | continue; | |
608 | } | |
609 | ||
610 | Int_t label[4]; | |
611 | label[0] = -2; | |
612 | label[1] = -2; | |
613 | label[2] = -2; | |
614 | // label[3] = iModule; | |
615 | label[3] = fNdet[iModule]; | |
616 | ||
617 | Int_t ymin = (idxBins[0] / kNzBins) - 1; | |
618 | Int_t ymax = ymin; | |
619 | Int_t zmin = (idxBins[0] % kNzBins) - 1; | |
620 | Int_t zmax = zmin; | |
c391f9d9 | 621 | for (Int_t idx = 0; idx < nBins; idx++) { |
622 | Int_t iy = (idxBins[idx] / kNzBins) - 1; | |
623 | Int_t iz = (idxBins[idx] % kNzBins) - 1; | |
624 | if (ymin > iy) ymin = iy; | |
625 | if (ymax < iy) ymax = iy; | |
626 | if (zmin > iz) zmin = iz; | |
627 | if (zmax < iz) zmax = iz; | |
c391f9d9 | 628 | } |
0e986ef9 | 629 | |
630 | Int_t idy = 0; // max 2 clusters | |
631 | if ((iModule <= fLastSPD1) &&idy<3) idy=3; | |
632 | if ((iModule > fLastSPD1) &&idy<4) idy=4; | |
633 | Int_t idz =3; | |
634 | for (Int_t iiz=zmin; iiz<=zmax;iiz+=idz) | |
635 | for (Int_t iiy=ymin; iiy<=ymax;iiy+=idy){ | |
636 | // | |
637 | Int_t ndigits =0; | |
638 | Float_t y=0.,z=0.,q=0.; | |
639 | for (Int_t idx = 0; idx < nBins; idx++) { | |
640 | Int_t iy = (idxBins[idx] / kNzBins) - 1; | |
641 | Int_t iz = (idxBins[idx] % kNzBins) - 1; | |
642 | if (zmax-zmin>=idz || ymax-ymin>=idy){ | |
643 | if (TMath::Abs(iy-iiy)>0.75*idy) continue; | |
644 | if (TMath::Abs(iz-iiz)>0.75*idz) continue; | |
645 | } | |
646 | ndigits++; | |
647 | Float_t qBin = bins[idxBins[idx]].GetQ(); | |
648 | y += qBin * fYSPD[iy]; | |
649 | z += qBin * fZSPD[iz]; | |
650 | q += qBin; | |
651 | } | |
652 | if (ndigits==0) continue; | |
653 | y /= q; | |
654 | z /= q; | |
655 | y -= fHwSPD; | |
656 | z -= fHlSPD; | |
657 | ||
658 | Float_t hit[5]; // y, z, sigma(y)^2, sigma(z)^2, charge | |
659 | hit[0] = -(-y+fYshift[iModule]); | |
660 | if (iModule <= fLastSPD1) hit[0] = -hit[0]; | |
661 | hit[1] = -z+fZshift[iModule]; | |
662 | hit[2] = fYpitchSPD*fYpitchSPD/12.; | |
663 | hit[3] = fZ1pitchSPD*fZ1pitchSPD/12.; | |
664 | // hit[4] = q; | |
665 | hit[4] = (zmax-zmin+1)*100 + (ymax-ymin+1); | |
666 | // CheckLabels(label); | |
667 | Int_t info[3]={ymax-ymin+1,zmax-zmin+1,fNlayer[iModule]}; | |
668 | new (clusters[iModule]->AddrAt(nClusters)) | |
669 | AliITSclusterV2(label, hit,info); | |
670 | nClusters++; | |
671 | } | |
c391f9d9 | 672 | } |
673 | ||
674 | nClustersSPD += nClusters; | |
5102d526 | 675 | bins = NULL; |
c391f9d9 | 676 | } |
677 | ||
678 | if (!next) break; | |
5102d526 | 679 | bins = binsSPD; |
680 | memcpy(binsSPD,binsSPDInit,sizeof(AliBin)*kMaxBin); | |
c391f9d9 | 681 | } |
682 | ||
683 | // fill the current digit into the bins array | |
684 | Int_t index = (input->GetCoord2()+1) * kNzBins + (input->GetCoord1()+1); | |
685 | bins[index].SetIndex(index); | |
686 | bins[index].SetMask(1); | |
687 | bins[index].SetQ(1); | |
688 | } | |
689 | ||
5102d526 | 690 | delete [] binsSPDInit; |
691 | delete [] binsSPD; | |
692 | ||
c391f9d9 | 693 | Info("FindClustersSPD", "found clusters in ITS SPD: %d", nClustersSPD); |
694 | } | |
695 | ||
696 | ||
7f4044f0 | 697 | Bool_t AliITSclustererV2::IsMaximum(Int_t k,Int_t max,const AliBin *bins) { |
698 | //------------------------------------------------------------ | |
699 | //is this a local maximum ? | |
700 | //------------------------------------------------------------ | |
701 | UShort_t q=bins[k].GetQ(); | |
702 | if (q==1023) return kFALSE; | |
703 | if (bins[k-max].GetQ() > q) return kFALSE; | |
704 | if (bins[k-1 ].GetQ() > q) return kFALSE; | |
705 | if (bins[k+max].GetQ() > q) return kFALSE; | |
706 | if (bins[k+1 ].GetQ() > q) return kFALSE; | |
707 | if (bins[k-max-1].GetQ() > q) return kFALSE; | |
708 | if (bins[k+max-1].GetQ() > q) return kFALSE; | |
709 | if (bins[k+max+1].GetQ() > q) return kFALSE; | |
710 | if (bins[k-max+1].GetQ() > q) return kFALSE; | |
711 | return kTRUE; | |
712 | } | |
713 | ||
714 | void AliITSclustererV2:: | |
715 | FindPeaks(Int_t k,Int_t max,AliBin *b,Int_t *idx,UInt_t *msk,Int_t& n) { | |
716 | //------------------------------------------------------------ | |
717 | //find local maxima | |
718 | //------------------------------------------------------------ | |
719 | if (n<31) | |
720 | if (IsMaximum(k,max,b)) { | |
721 | idx[n]=k; msk[n]=(2<<n); | |
722 | n++; | |
723 | } | |
724 | b[k].SetMask(0); | |
725 | if (b[k-max].GetMask()&1) FindPeaks(k-max,max,b,idx,msk,n); | |
726 | if (b[k-1 ].GetMask()&1) FindPeaks(k-1 ,max,b,idx,msk,n); | |
727 | if (b[k+max].GetMask()&1) FindPeaks(k+max,max,b,idx,msk,n); | |
728 | if (b[k+1 ].GetMask()&1) FindPeaks(k+1 ,max,b,idx,msk,n); | |
729 | } | |
730 | ||
731 | void AliITSclustererV2:: | |
732 | MarkPeak(Int_t k, Int_t max, AliBin *bins, UInt_t m) { | |
733 | //------------------------------------------------------------ | |
734 | //mark this peak | |
735 | //------------------------------------------------------------ | |
736 | UShort_t q=bins[k].GetQ(); | |
737 | ||
738 | bins[k].SetMask(bins[k].GetMask()|m); | |
739 | ||
740 | if (bins[k-max].GetQ() <= q) | |
741 | if ((bins[k-max].GetMask()&m) == 0) MarkPeak(k-max,max,bins,m); | |
742 | if (bins[k-1 ].GetQ() <= q) | |
743 | if ((bins[k-1 ].GetMask()&m) == 0) MarkPeak(k-1 ,max,bins,m); | |
744 | if (bins[k+max].GetQ() <= q) | |
745 | if ((bins[k+max].GetMask()&m) == 0) MarkPeak(k+max,max,bins,m); | |
746 | if (bins[k+1 ].GetQ() <= q) | |
747 | if ((bins[k+1 ].GetMask()&m) == 0) MarkPeak(k+1 ,max,bins,m); | |
748 | } | |
749 | ||
750 | void AliITSclustererV2:: | |
751 | MakeCluster(Int_t k,Int_t max,AliBin *bins,UInt_t m,AliITSclusterV2 &c) { | |
752 | //------------------------------------------------------------ | |
753 | //make cluster using digits of this peak | |
754 | //------------------------------------------------------------ | |
755 | Float_t q=(Float_t)bins[k].GetQ(); | |
756 | Int_t i=k/max, j=k-i*max; | |
757 | ||
758 | c.SetQ(c.GetQ()+q); | |
759 | c.SetY(c.GetY()+i*q); | |
760 | c.SetZ(c.GetZ()+j*q); | |
761 | c.SetSigmaY2(c.GetSigmaY2()+i*i*q); | |
762 | c.SetSigmaZ2(c.GetSigmaZ2()+j*j*q); | |
763 | ||
764 | bins[k].SetMask(0xFFFFFFFE); | |
765 | ||
766 | if (bins[k-max].GetMask() == m) MakeCluster(k-max,max,bins,m,c); | |
767 | if (bins[k-1 ].GetMask() == m) MakeCluster(k-1 ,max,bins,m,c); | |
768 | if (bins[k+max].GetMask() == m) MakeCluster(k+max,max,bins,m,c); | |
769 | if (bins[k+1 ].GetMask() == m) MakeCluster(k+1 ,max,bins,m,c); | |
770 | } | |
771 | ||
772 | void AliITSclustererV2:: | |
c391f9d9 | 773 | FindClustersSDD(AliBin* bins[2], Int_t nMaxBin, Int_t nzBins, |
774 | const TClonesArray *digits, TClonesArray *clusters) { | |
7f4044f0 | 775 | //------------------------------------------------------------ |
776 | // Actual SDD cluster finder | |
777 | //------------------------------------------------------------ | |
7f4044f0 | 778 | Int_t ncl=0; TClonesArray &cl=*clusters; |
779 | for (Int_t s=0; s<2; s++) | |
c391f9d9 | 780 | for (Int_t i=0; i<nMaxBin; i++) { |
7f4044f0 | 781 | if (bins[s][i].IsUsed()) continue; |
782 | Int_t idx[32]; UInt_t msk[32]; Int_t npeaks=0; | |
c391f9d9 | 783 | FindPeaks(i, nzBins, bins[s], idx, msk, npeaks); |
7f4044f0 | 784 | |
785 | if (npeaks>30) continue; | |
e43c066c | 786 | if (npeaks==0) continue; |
7f4044f0 | 787 | |
788 | Int_t k,l; | |
789 | for (k=0; k<npeaks-1; k++){//mark adjacent peaks | |
790 | if (idx[k] < 0) continue; //this peak is already removed | |
791 | for (l=k+1; l<npeaks; l++) { | |
792 | if (idx[l] < 0) continue; //this peak is already removed | |
c391f9d9 | 793 | Int_t ki=idx[k]/nzBins, kj=idx[k] - ki*nzBins; |
794 | Int_t li=idx[l]/nzBins, lj=idx[l] - li*nzBins; | |
7f4044f0 | 795 | Int_t di=TMath::Abs(ki - li); |
796 | Int_t dj=TMath::Abs(kj - lj); | |
797 | if (di>1 || dj>1) continue; | |
798 | if (bins[s][idx[k]].GetQ() > bins[s][idx[l]].GetQ()) { | |
799 | msk[l]=msk[k]; | |
800 | idx[l]*=-1; | |
801 | } else { | |
802 | msk[k]=msk[l]; | |
803 | idx[k]*=-1; | |
804 | break; | |
805 | } | |
806 | } | |
807 | } | |
808 | ||
809 | for (k=0; k<npeaks; k++) { | |
c391f9d9 | 810 | MarkPeak(TMath::Abs(idx[k]), nzBins, bins[s], msk[k]); |
7f4044f0 | 811 | } |
812 | ||
813 | for (k=0; k<npeaks; k++) { | |
814 | if (idx[k] < 0) continue; //removed peak | |
815 | AliITSclusterV2 c; | |
c391f9d9 | 816 | MakeCluster(idx[k], nzBins, bins[s], msk[k], c); |
babd135a | 817 | //mi change |
818 | Int_t milab[10]; | |
819 | for (Int_t ilab=0;ilab<10;ilab++){ | |
820 | milab[ilab]=-2; | |
821 | } | |
e43c066c | 822 | Int_t maxi=0,mini=0,maxj=0,minj=0; |
823 | //AliBin *bmax=&bins[s][idx[k]]; | |
824 | //Float_t max = TMath::Max(TMath::Abs(bmax->GetQ())/5.,3.); | |
825 | Float_t max=3; | |
826 | for (Int_t di=-2; di<=2;di++) | |
827 | for (Int_t dj=-3;dj<=3;dj++){ | |
828 | Int_t index = idx[k]+di+dj*nzBins; | |
829 | if (index<0) continue; | |
830 | if (index>=nMaxBin) continue; | |
831 | AliBin *b=&bins[s][index]; | |
832 | if (TMath::Abs(b->GetQ())>max){ | |
833 | if (di>maxi) maxi=di; | |
834 | if (di<mini) mini=di; | |
835 | if (dj>maxj) maxj=dj; | |
836 | if (dj<minj) minj=dj; | |
837 | // | |
0e986ef9 | 838 | if(digits) { |
839 | if (TMath::Abs(di)<2&&TMath::Abs(dj)<2){ | |
840 | AliITSdigitSDD* d=(AliITSdigitSDD*)digits->UncheckedAt(b->GetIndex()); | |
841 | for (Int_t itrack=0;itrack<10;itrack++){ | |
842 | Int_t track = (d->GetTracks())[itrack]; | |
843 | if (track>=0) { | |
844 | AddLabel(milab, track); | |
845 | } | |
e43c066c | 846 | } |
847 | } | |
848 | } | |
849 | } | |
850 | } | |
851 | ||
852 | /* | |
853 | Float_t s2 = c.GetSigmaY2()/c.GetQ() - c.GetY()*c.GetY(); | |
854 | Float_t w=par->GetPadPitchWidth(sec); | |
855 | c.SetSigmaY2(s2); | |
856 | if (s2 != 0.) { | |
857 | c.SetSigmaY2(c.GetSigmaY2()*0.108); | |
858 | if (sec<par->GetNInnerSector()) c.SetSigmaY2(c.GetSigmaY2()*2.07); | |
859 | } | |
860 | s2 = c.GetSigmaZ2()/c.GetQ() - c.GetZ()*c.GetZ(); | |
861 | w=par->GetZWidth(); | |
862 | c.SetSigmaZ2(s2); | |
863 | ||
864 | if (s2 != 0.) { | |
865 | c.SetSigmaZ2(c.GetSigmaZ2()*0.169); | |
866 | if (sec<par->GetNInnerSector()) c.SetSigmaZ2(c.GetSigmaZ2()*1.77); | |
867 | } | |
7f4044f0 | 868 | */ |
869 | ||
7f4044f0 | 870 | Float_t y=c.GetY(),z=c.GetZ(), q=c.GetQ(); |
871 | y/=q; z/=q; | |
e43c066c | 872 | // |
873 | //Float_t s2 = c.GetSigmaY2()/c.GetQ() - y*y; | |
874 | // c.SetSigmaY2(s2); | |
875 | //s2 = c.GetSigmaZ2()/c.GetQ() - z*z; | |
876 | //c.SetSigmaZ2(s2); | |
877 | // | |
7f4044f0 | 878 | y=(y-0.5)*fYpitchSDD; |
879 | y-=fHwSDD; | |
880 | y-=fYoffSDD; //delay ? | |
881 | if (s) y=-y; | |
882 | ||
883 | z=(z-0.5)*fZpitchSDD; | |
884 | z-=fHlSDD; | |
885 | ||
f363d377 | 886 | y=-(-y+fYshift[fI]); |
887 | z= -z+fZshift[fI]; | |
ecb9da3c | 888 | |
889 | q/=12.7; //this WAS consistent with SSD. To be reassessed | |
890 | // 23-MAR-2007 | |
891 | Float_t hit[5] = {y, z, 0.0030*0.0030, 0.0020*0.0020, q}; | |
892 | Int_t info[3] = {maxj-minj+1, maxi-mini+1, fNlayer[fI]}; | |
e3d91d99 | 893 | |
894 | if (c.GetQ() < 20.) continue; //noise cluster | |
e43c066c | 895 | |
896 | if (digits) { | |
897 | // AliBin *b=&bins[s][idx[k]]; | |
898 | // AliITSdigitSDD* d=(AliITSdigitSDD*)digits->UncheckedAt(b->GetIndex()); | |
c391f9d9 | 899 | { |
e43c066c | 900 | //Int_t lab[3]; |
901 | //lab[0]=(d->GetTracks())[0]; | |
902 | //lab[1]=(d->GetTracks())[1]; | |
903 | //lab[2]=(d->GetTracks())[2]; | |
904 | //CheckLabels(lab); | |
babd135a | 905 | CheckLabels2(milab); |
c391f9d9 | 906 | } |
907 | } | |
ecb9da3c | 908 | milab[3]=fNdet[fI]; |
909 | ||
910 | AliITSclusterV2 *cc = new (cl[ncl]) AliITSclusterV2(milab,hit,info); | |
911 | cc->SetType(npeaks); | |
912 | ncl++; | |
7f4044f0 | 913 | } |
914 | } | |
c391f9d9 | 915 | } |
916 | ||
917 | void AliITSclustererV2:: | |
918 | FindClustersSDD(const TClonesArray *digits, TClonesArray *clusters) { | |
919 | //------------------------------------------------------------ | |
920 | // Actual SDD cluster finder | |
921 | //------------------------------------------------------------ | |
922 | Int_t kNzBins = fNzSDD + 2; | |
923 | const Int_t kMAXBIN=kNzBins*(fNySDD+2); | |
924 | ||
925 | AliBin *bins[2]; | |
926 | bins[0]=new AliBin[kMAXBIN]; | |
927 | bins[1]=new AliBin[kMAXBIN]; | |
928 | ||
929 | AliITSdigitSDD *d=0; | |
930 | Int_t i, ndigits=digits->GetEntriesFast(); | |
931 | for (i=0; i<ndigits; i++) { | |
932 | d=(AliITSdigitSDD*)digits->UncheckedAt(i); | |
933 | Int_t y=d->GetCoord2()+1; //y | |
934 | Int_t z=d->GetCoord1()+1; //z | |
935 | Int_t q=d->GetSignal(); | |
e43c066c | 936 | if (q<3) continue; |
e3d91d99 | 937 | |
c391f9d9 | 938 | if (z <= fNzSDD) { |
939 | bins[0][y*kNzBins+z].SetQ(q); | |
940 | bins[0][y*kNzBins+z].SetMask(1); | |
941 | bins[0][y*kNzBins+z].SetIndex(i); | |
942 | } else { | |
943 | z-=fNzSDD; | |
944 | bins[1][y*kNzBins+z].SetQ(q); | |
945 | bins[1][y*kNzBins+z].SetMask(1); | |
946 | bins[1][y*kNzBins+z].SetIndex(i); | |
947 | } | |
948 | } | |
949 | ||
950 | FindClustersSDD(bins, kMAXBIN, kNzBins, digits, clusters); | |
7f4044f0 | 951 | |
952 | delete[] bins[0]; | |
953 | delete[] bins[1]; | |
0e986ef9 | 954 | |
7f4044f0 | 955 | } |
956 | ||
c391f9d9 | 957 | void AliITSclustererV2::FindClustersSDD(AliITSRawStream* input, |
958 | TClonesArray** clusters) | |
959 | { | |
960 | //------------------------------------------------------------ | |
961 | // Actual SDD cluster finder for raw data | |
962 | //------------------------------------------------------------ | |
963 | Int_t nClustersSDD = 0; | |
964 | Int_t kNzBins = fNzSDD + 2; | |
965 | Int_t kMaxBin = kNzBins * (fNySDD+2); | |
5102d526 | 966 | AliBin *binsSDDInit = new AliBin[kMaxBin]; |
967 | AliBin *binsSDD1 = new AliBin[kMaxBin]; | |
968 | AliBin *binsSDD2 = new AliBin[kMaxBin]; | |
969 | AliBin *bins[2] = {NULL, NULL}; | |
c391f9d9 | 970 | |
971 | // read raw data input stream | |
972 | while (kTRUE) { | |
973 | Bool_t next = input->Next(); | |
974 | if (!next || input->IsNewModule()) { | |
975 | Int_t iModule = input->GetPrevModuleID(); | |
976 | ||
977 | // when all data from a module was read, search for clusters | |
978 | if (bins[0]) { | |
979 | clusters[iModule] = new TClonesArray("AliITSclusterV2"); | |
980 | fI = iModule; | |
981 | FindClustersSDD(bins, kMaxBin, kNzBins, NULL, clusters[iModule]); | |
982 | Int_t nClusters = clusters[iModule]->GetEntriesFast(); | |
983 | nClustersSDD += nClusters; | |
5102d526 | 984 | bins[0] = bins[1] = NULL; |
c391f9d9 | 985 | } |
986 | ||
987 | if (!next) break; | |
5102d526 | 988 | bins[0]=binsSDD1; |
989 | bins[1]=binsSDD2; | |
990 | memcpy(binsSDD1,binsSDDInit,sizeof(AliBin)*kMaxBin); | |
991 | memcpy(binsSDD2,binsSDDInit,sizeof(AliBin)*kMaxBin); | |
c391f9d9 | 992 | } |
993 | ||
994 | // fill the current digit into the bins array | |
0e986ef9 | 995 | if(input->GetSignal()>=3) { |
996 | Int_t iz = input->GetCoord1()+1; | |
997 | Int_t side = ((iz <= fNzSDD) ? 0 : 1); | |
998 | iz -= side*fNzSDD; | |
999 | Int_t index = (input->GetCoord2()+1) * kNzBins + iz; | |
1000 | bins[side][index].SetQ(input->GetSignal()); | |
1001 | bins[side][index].SetMask(1); | |
1002 | bins[side][index].SetIndex(index); | |
1003 | } | |
c391f9d9 | 1004 | } |
1005 | ||
5102d526 | 1006 | delete[] binsSDD1; |
1007 | delete[] binsSDD2; | |
1008 | delete[] binsSDDInit; | |
1009 | ||
c391f9d9 | 1010 | Info("FindClustersSDD", "found clusters in ITS SDD: %d", nClustersSDD); |
1011 | } | |
1012 | ||
e43c066c | 1013 | |
1014 | ||
c391f9d9 | 1015 | void AliITSclustererV2:: |
1016 | FindClustersSSD(Ali1Dcluster* neg, Int_t nn, | |
1017 | Ali1Dcluster* pos, Int_t np, | |
1018 | TClonesArray *clusters) { | |
1019 | //------------------------------------------------------------ | |
1020 | // Actual SSD cluster finder | |
1021 | //------------------------------------------------------------ | |
1022 | TClonesArray &cl=*clusters; | |
e43c066c | 1023 | // |
c391f9d9 | 1024 | Float_t tanp=fTanP, tann=fTanN; |
1025 | if (fI>fLastSSD1) {tann=fTanP; tanp=fTanN;} | |
c391f9d9 | 1026 | Int_t idet=fNdet[fI]; |
1027 | Int_t ncl=0; | |
e43c066c | 1028 | // |
1029 | Int_t negativepair[30000]; | |
1030 | Int_t cnegative[3000]; | |
1031 | Int_t cused1[3000]; | |
1032 | Int_t positivepair[30000]; | |
1033 | Int_t cpositive[3000]; | |
1034 | Int_t cused2[3000]; | |
1035 | for (Int_t i=0;i<3000;i++) {cnegative[i]=0; cused1[i]=0;} | |
1036 | for (Int_t i=0;i<3000;i++) {cpositive[i]=0; cused2[i]=0;} | |
b66f90a0 | 1037 | for (Int_t i=0;i<30000;i++){negativepair[i]=positivepair[i]=0;} |
0774985e | 1038 | static Short_t pairs[1000][1000]; |
1039 | memset(pairs,0,sizeof(Short_t)*1000000); | |
1040 | // Short_t ** pairs = new Short_t*[1000]; | |
1041 | // for (Int_t i=0; i<1000; i++) { | |
1042 | // pairs[i] = new Short_t[1000]; | |
1043 | // memset(pairs[i],0,sizeof(Short_t)*1000); | |
1044 | // } | |
e43c066c | 1045 | // |
1046 | // find available pairs | |
1047 | // | |
1048 | for (Int_t i=0; i<np; i++) { | |
1049 | Float_t yp=pos[i].GetY()*fYpitchSSD; | |
1050 | if (pos[i].GetQ()<3) continue; | |
1051 | for (Int_t j=0; j<nn; j++) { | |
1052 | if (neg[j].GetQ()<3) continue; | |
1053 | Float_t yn=neg[j].GetY()*fYpitchSSD; | |
1054 | Float_t zt=(2*fHlSSD*tanp + yp - yn)/(tann+tanp); | |
1055 | Float_t yt=yn + tann*zt; | |
1056 | zt-=fHlSSD; yt-=fHwSSD; | |
1057 | if (TMath::Abs(yt)<fHwSSD+0.01) | |
1058 | if (TMath::Abs(zt)<fHlSSD+0.01*(neg[j].GetNd()+pos[i].GetNd())) { | |
1059 | negativepair[i*10+cnegative[i]] =j; //index | |
1060 | positivepair[j*10+cpositive[j]] =i; | |
1061 | cnegative[i]++; //counters | |
1062 | cpositive[j]++; | |
1063 | pairs[i][j]=100; | |
1064 | } | |
1065 | } | |
1066 | } | |
1067 | // | |
1068 | for (Int_t i=0; i<np; i++) { | |
1069 | Float_t yp=pos[i].GetY()*fYpitchSSD; | |
1070 | if (pos[i].GetQ()<3) continue; | |
1071 | for (Int_t j=0; j<nn; j++) { | |
1072 | if (neg[j].GetQ()<3) continue; | |
1073 | if (cpositive[j]&&cnegative[i]) continue; | |
1074 | Float_t yn=neg[j].GetY()*fYpitchSSD; | |
1075 | Float_t zt=(2*fHlSSD*tanp + yp - yn)/(tann+tanp); | |
1076 | Float_t yt=yn + tann*zt; | |
1077 | zt-=fHlSSD; yt-=fHwSSD; | |
1078 | if (TMath::Abs(yt)<fHwSSD+0.1) | |
1079 | if (TMath::Abs(zt)<fHlSSD+0.15) { | |
1080 | if (cnegative[i]==0) pos[i].SetNd(100); // not available pair | |
1081 | if (cpositive[j]==0) neg[j].SetNd(100); // not available pair | |
1082 | negativepair[i*10+cnegative[i]] =j; //index | |
1083 | positivepair[j*10+cpositive[j]] =i; | |
1084 | cnegative[i]++; //counters | |
1085 | cpositive[j]++; | |
1086 | pairs[i][j]=100; | |
1087 | } | |
1088 | } | |
1089 | } | |
1090 | // | |
1091 | Float_t lp[5]; | |
1092 | Int_t milab[10]; | |
1093 | Double_t ratio; | |
1094 | ||
1095 | // | |
1096 | // sign gold tracks | |
1097 | // | |
1098 | for (Int_t ip=0;ip<np;ip++){ | |
1099 | Float_t ybest=1000,zbest=1000,qbest=0; | |
1100 | // | |
1101 | // select gold clusters | |
1102 | if ( (cnegative[ip]==1) && cpositive[negativepair[10*ip]]==1){ | |
1103 | Float_t yp=pos[ip].GetY()*fYpitchSSD; | |
1104 | Int_t j = negativepair[10*ip]; | |
1105 | ratio = (pos[ip].GetQ()-neg[j].GetQ())/(pos[ip].GetQ()+neg[j].GetQ()); | |
1106 | // | |
1107 | Float_t yn=neg[j].GetY()*fYpitchSSD; | |
1108 | Float_t zt=(2*fHlSSD*tanp + yp - yn)/(tann+tanp); | |
1109 | Float_t yt=yn + tann*zt; | |
1110 | zt-=fHlSSD; yt-=fHwSSD; | |
1111 | ybest=yt; zbest=zt; | |
1112 | qbest=0.5*(pos[ip].GetQ()+neg[j].GetQ()); | |
1113 | lp[0]=-(-ybest+fYshift[fI]); | |
1114 | lp[1]= -zbest+fZshift[fI]; | |
1115 | lp[2]=0.0025*0.0025; //SigmaY2 | |
1116 | lp[3]=0.110*0.110; //SigmaZ2 | |
1117 | ||
1118 | lp[4]=qbest; //Q | |
1119 | for (Int_t ilab=0;ilab<10;ilab++) milab[ilab]=-2; | |
1120 | for (Int_t ilab=0;ilab<3;ilab++){ | |
1121 | milab[ilab] = pos[ip].GetLabel(ilab); | |
1122 | milab[ilab+3] = neg[j].GetLabel(ilab); | |
1123 | } | |
1124 | // | |
1125 | CheckLabels2(milab); | |
1126 | milab[3]=(((ip<<10) + j)<<10) + idet; // pos|neg|det | |
1127 | Int_t info[3] = {pos[ip].GetNd(),neg[j].GetNd(),fNlayer[fI]}; | |
1128 | AliITSclusterV2 * cl2 = new (cl[ncl]) AliITSclusterV2(milab,lp,info); | |
1129 | ncl++; | |
1130 | cl2->SetChargeRatio(ratio); | |
1131 | cl2->SetType(1); | |
1132 | pairs[ip][j]=1; | |
1133 | if ((pos[ip].GetNd()+neg[j].GetNd())>6){ //multi cluster | |
1134 | cl2->SetType(2); | |
1135 | pairs[ip][j]=2; | |
1136 | } | |
1137 | cused1[ip]++; | |
1138 | cused2[j]++; | |
1139 | } | |
1140 | } | |
1141 | ||
1142 | for (Int_t ip=0;ip<np;ip++){ | |
1143 | Float_t ybest=1000,zbest=1000,qbest=0; | |
1144 | // | |
1145 | // | |
1146 | // select "silber" cluster | |
1147 | if ( cnegative[ip]==1 && cpositive[negativepair[10*ip]]==2){ | |
1148 | Int_t in = negativepair[10*ip]; | |
1149 | Int_t ip2 = positivepair[10*in]; | |
1150 | if (ip2==ip) ip2 = positivepair[10*in+1]; | |
1151 | Float_t pcharge = pos[ip].GetQ()+pos[ip2].GetQ(); | |
1152 | if (TMath::Abs(pcharge-neg[in].GetQ())<10){ | |
1153 | // | |
1154 | // add first pair | |
1155 | if (pairs[ip][in]==100){ // | |
1156 | Float_t yp=pos[ip].GetY()*fYpitchSSD; | |
1157 | Float_t yn=neg[in].GetY()*fYpitchSSD; | |
1158 | Float_t zt=(2*fHlSSD*tanp + yp - yn)/(tann+tanp); | |
1159 | Float_t yt=yn + tann*zt; | |
1160 | zt-=fHlSSD; yt-=fHwSSD; | |
1161 | ybest =yt; zbest=zt; | |
1162 | qbest =pos[ip].GetQ(); | |
1163 | lp[0]=-(-ybest+fYshift[fI]); | |
1164 | lp[1]= -zbest+fZshift[fI]; | |
1165 | lp[2]=0.0025*0.0025; //SigmaY2 | |
1166 | lp[3]=0.110*0.110; //SigmaZ2 | |
1167 | ||
1168 | lp[4]=qbest; //Q | |
1169 | for (Int_t ilab=0;ilab<10;ilab++) milab[ilab]=-2; | |
1170 | for (Int_t ilab=0;ilab<3;ilab++){ | |
1171 | milab[ilab] = pos[ip].GetLabel(ilab); | |
1172 | milab[ilab+3] = neg[in].GetLabel(ilab); | |
1173 | } | |
1174 | // | |
1175 | CheckLabels2(milab); | |
1176 | ratio = (pos[ip].GetQ()-neg[in].GetQ())/(pos[ip].GetQ()+neg[in].GetQ()); | |
1177 | milab[3]=(((ip<<10) + in)<<10) + idet; // pos|neg|det | |
1178 | Int_t info[3] = {pos[ip].GetNd(),neg[in].GetNd(),fNlayer[fI]}; | |
1179 | AliITSclusterV2 * cl2 = new (cl[ncl]) AliITSclusterV2(milab,lp,info); | |
1180 | ncl++; | |
1181 | cl2->SetChargeRatio(ratio); | |
1182 | cl2->SetType(5); | |
1183 | pairs[ip][in] = 5; | |
1184 | if ((pos[ip].GetNd()+neg[in].GetNd())>6){ //multi cluster | |
1185 | cl2->SetType(6); | |
1186 | pairs[ip][in] = 6; | |
1187 | } | |
1188 | } | |
1189 | // | |
1190 | // add second pair | |
1191 | ||
1192 | // if (!(cused1[ip2] || cused2[in])){ // | |
1193 | if (pairs[ip2][in]==100){ | |
1194 | Float_t yp=pos[ip2].GetY()*fYpitchSSD; | |
1195 | Float_t yn=neg[in].GetY()*fYpitchSSD; | |
1196 | Float_t zt=(2*fHlSSD*tanp + yp - yn)/(tann+tanp); | |
1197 | Float_t yt=yn + tann*zt; | |
1198 | zt-=fHlSSD; yt-=fHwSSD; | |
1199 | ybest =yt; zbest=zt; | |
1200 | qbest =pos[ip2].GetQ(); | |
1201 | lp[0]=-(-ybest+fYshift[fI]); | |
1202 | lp[1]= -zbest+fZshift[fI]; | |
1203 | lp[2]=0.0025*0.0025; //SigmaY2 | |
1204 | lp[3]=0.110*0.110; //SigmaZ2 | |
1205 | ||
1206 | lp[4]=qbest; //Q | |
1207 | for (Int_t ilab=0;ilab<10;ilab++) milab[ilab]=-2; | |
1208 | for (Int_t ilab=0;ilab<3;ilab++){ | |
1209 | milab[ilab] = pos[ip2].GetLabel(ilab); | |
1210 | milab[ilab+3] = neg[in].GetLabel(ilab); | |
1211 | } | |
1212 | // | |
1213 | CheckLabels2(milab); | |
1214 | ratio = (pos[ip2].GetQ()-neg[in].GetQ())/(pos[ip2].GetQ()+neg[in].GetQ()); | |
1215 | milab[3]=(((ip2<<10) + in)<<10) + idet; // pos|neg|det | |
1216 | Int_t info[3] = {pos[ip2].GetNd(),neg[in].GetNd(),fNlayer[fI]}; | |
1217 | AliITSclusterV2 *cl2 = new (cl[ncl]) AliITSclusterV2(milab,lp,info); | |
1218 | ncl++; | |
1219 | cl2->SetChargeRatio(ratio); | |
1220 | cl2->SetType(5); | |
1221 | pairs[ip2][in] =5; | |
1222 | if ((pos[ip2].GetNd()+neg[in].GetNd())>6){ //multi cluster | |
1223 | cl2->SetType(6); | |
1224 | pairs[ip2][in] =6; | |
1225 | } | |
1226 | } | |
1227 | cused1[ip]++; | |
1228 | cused1[ip2]++; | |
1229 | cused2[in]++; | |
1230 | } | |
1231 | } | |
1232 | } | |
1233 | ||
1234 | // | |
1235 | for (Int_t jn=0;jn<nn;jn++){ | |
1236 | if (cused2[jn]) continue; | |
1237 | Float_t ybest=1000,zbest=1000,qbest=0; | |
1238 | // select "silber" cluster | |
1239 | if ( cpositive[jn]==1 && cnegative[positivepair[10*jn]]==2){ | |
1240 | Int_t ip = positivepair[10*jn]; | |
1241 | Int_t jn2 = negativepair[10*ip]; | |
1242 | if (jn2==jn) jn2 = negativepair[10*ip+1]; | |
1243 | Float_t pcharge = neg[jn].GetQ()+neg[jn2].GetQ(); | |
1244 | // | |
1245 | if (TMath::Abs(pcharge-pos[ip].GetQ())<10){ | |
1246 | // | |
1247 | // add first pair | |
1248 | // if (!(cused1[ip]||cused2[jn])){ | |
1249 | if (pairs[ip][jn]==100){ | |
1250 | Float_t yn=neg[jn].GetY()*fYpitchSSD; | |
1251 | Float_t yp=pos[ip].GetY()*fYpitchSSD; | |
1252 | Float_t zt=(2*fHlSSD*tanp + yp - yn)/(tann+tanp); | |
1253 | Float_t yt=yn + tann*zt; | |
1254 | zt-=fHlSSD; yt-=fHwSSD; | |
1255 | ybest =yt; zbest=zt; | |
1256 | qbest =neg[jn].GetQ(); | |
1257 | lp[0]=-(-ybest+fYshift[fI]); | |
1258 | lp[1]= -zbest+fZshift[fI]; | |
1259 | lp[2]=0.0025*0.0025; //SigmaY2 | |
1260 | lp[3]=0.110*0.110; //SigmaZ2 | |
1261 | ||
1262 | lp[4]=qbest; //Q | |
1263 | for (Int_t ilab=0;ilab<10;ilab++) milab[ilab]=-2; | |
1264 | for (Int_t ilab=0;ilab<3;ilab++){ | |
1265 | milab[ilab] = pos[ip].GetLabel(ilab); | |
1266 | milab[ilab+3] = neg[jn].GetLabel(ilab); | |
1267 | } | |
1268 | // | |
1269 | CheckLabels2(milab); | |
1270 | ratio = (pos[ip].GetQ()-neg[jn].GetQ())/(pos[ip].GetQ()+neg[jn].GetQ()); | |
1271 | milab[3]=(((ip<<10) + jn)<<10) + idet; // pos|neg|det | |
1272 | Int_t info[3] = {pos[ip].GetNd(),neg[jn].GetNd(),fNlayer[fI]}; | |
1273 | AliITSclusterV2 * cl2 = new (cl[ncl]) AliITSclusterV2(milab,lp,info); | |
1274 | ncl++; | |
1275 | cl2->SetChargeRatio(ratio); | |
1276 | cl2->SetType(7); | |
1277 | pairs[ip][jn] =7; | |
1278 | if ((pos[ip].GetNd()+neg[jn].GetNd())>6){ //multi cluster | |
1279 | cl2->SetType(8); | |
1280 | pairs[ip][jn]=8; | |
1281 | } | |
1282 | } | |
1283 | // | |
1284 | // add second pair | |
1285 | // if (!(cused1[ip]||cused2[jn2])){ | |
1286 | if (pairs[ip][jn2]==100){ | |
1287 | Float_t yn=neg[jn2].GetY()*fYpitchSSD; | |
1288 | Double_t yp=pos[ip].GetY()*fYpitchSSD; | |
1289 | Double_t zt=(2*fHlSSD*tanp + yp - yn)/(tann+tanp); | |
1290 | Double_t yt=yn + tann*zt; | |
1291 | zt-=fHlSSD; yt-=fHwSSD; | |
1292 | ybest =yt; zbest=zt; | |
1293 | qbest =neg[jn2].GetQ(); | |
1294 | lp[0]=-(-ybest+fYshift[fI]); | |
1295 | lp[1]= -zbest+fZshift[fI]; | |
1296 | lp[2]=0.0025*0.0025; //SigmaY2 | |
1297 | lp[3]=0.110*0.110; //SigmaZ2 | |
1298 | ||
1299 | lp[4]=qbest; //Q | |
1300 | for (Int_t ilab=0;ilab<10;ilab++) milab[ilab]=-2; | |
1301 | for (Int_t ilab=0;ilab<3;ilab++){ | |
1302 | milab[ilab] = pos[ip].GetLabel(ilab); | |
1303 | milab[ilab+3] = neg[jn2].GetLabel(ilab); | |
1304 | } | |
1305 | // | |
1306 | CheckLabels2(milab); | |
1307 | ratio = (pos[ip].GetQ()-neg[jn2].GetQ())/(pos[ip].GetQ()+neg[jn2].GetQ()); | |
1308 | milab[3]=(((ip<<10) + jn2)<<10) + idet; // pos|neg|det | |
1309 | Int_t info[3] = {pos[ip].GetNd(),neg[jn2].GetNd(),fNlayer[fI]}; | |
1310 | AliITSclusterV2* cl2 = new (cl[ncl]) AliITSclusterV2(milab,lp,info); | |
1311 | ncl++; | |
1312 | cl2->SetChargeRatio(ratio); | |
1313 | pairs[ip][jn2]=7; | |
1314 | cl2->SetType(7); | |
1315 | if ((pos[ip].GetNd()+neg[jn2].GetNd())>6){ //multi cluster | |
1316 | cl2->SetType(8); | |
1317 | pairs[ip][jn2]=8; | |
1318 | } | |
1319 | } | |
1320 | cused1[ip]++; | |
1321 | cused2[jn]++; | |
1322 | cused2[jn2]++; | |
1323 | } | |
1324 | } | |
1325 | } | |
1326 | ||
1327 | for (Int_t ip=0;ip<np;ip++){ | |
1328 | Float_t ybest=1000,zbest=1000,qbest=0; | |
1329 | // | |
1330 | // 2x2 clusters | |
1331 | // | |
1332 | if ( (cnegative[ip]<5) && cpositive[negativepair[10*ip]]<5){ | |
1333 | Float_t minchargediff =4.; | |
1334 | Int_t j=-1; | |
1335 | for (Int_t di=0;di<cnegative[ip];di++){ | |
1336 | Int_t jc = negativepair[ip*10+di]; | |
1337 | Float_t chargedif = pos[ip].GetQ()-neg[jc].GetQ(); | |
1338 | if (TMath::Abs(chargedif)<minchargediff){ | |
1339 | j =jc; | |
1340 | minchargediff = TMath::Abs(chargedif); | |
1341 | } | |
1342 | } | |
1343 | if (j<0) continue; // not proper cluster | |
1344 | Int_t count =0; | |
1345 | for (Int_t di=0;di<cnegative[ip];di++){ | |
1346 | Int_t jc = negativepair[ip*10+di]; | |
1347 | Float_t chargedif = pos[ip].GetQ()-neg[jc].GetQ(); | |
1348 | if (TMath::Abs(chargedif)<minchargediff+3.) count++; | |
1349 | } | |
1350 | if (count>1) continue; // more than one "proper" cluster for positive | |
1351 | // | |
1352 | count =0; | |
1353 | for (Int_t dj=0;dj<cpositive[j];dj++){ | |
1354 | Int_t ic = positivepair[j*10+dj]; | |
1355 | Float_t chargedif = pos[ic].GetQ()-neg[j].GetQ(); | |
1356 | if (TMath::Abs(chargedif)<minchargediff+3.) count++; | |
1357 | } | |
1358 | if (count>1) continue; // more than one "proper" cluster for negative | |
1359 | ||
1360 | Int_t jp = 0; | |
1361 | ||
1362 | count =0; | |
1363 | for (Int_t dj=0;dj<cnegative[jp];dj++){ | |
1364 | Int_t ic = positivepair[jp*10+dj]; | |
1365 | Float_t chargedif = pos[ic].GetQ()-neg[jp].GetQ(); | |
1366 | if (TMath::Abs(chargedif)<minchargediff+4.) count++; | |
1367 | } | |
1368 | if (count>1) continue; | |
1369 | if (pairs[ip][j]<100) continue; | |
1370 | // | |
1371 | //almost gold clusters | |
1372 | Float_t yp=pos[ip].GetY()*fYpitchSSD; | |
1373 | Float_t yn=neg[j].GetY()*fYpitchSSD; | |
1374 | Float_t zt=(2*fHlSSD*tanp + yp - yn)/(tann+tanp); | |
1375 | Float_t yt=yn + tann*zt; | |
1376 | zt-=fHlSSD; yt-=fHwSSD; | |
1377 | ybest=yt; zbest=zt; | |
1378 | qbest=0.5*(pos[ip].GetQ()+neg[j].GetQ()); | |
1379 | lp[0]=-(-ybest+fYshift[fI]); | |
1380 | lp[1]= -zbest+fZshift[fI]; | |
1381 | lp[2]=0.0025*0.0025; //SigmaY2 | |
1382 | lp[3]=0.110*0.110; //SigmaZ2 | |
1383 | lp[4]=qbest; //Q | |
1384 | for (Int_t ilab=0;ilab<10;ilab++) milab[ilab]=-2; | |
1385 | for (Int_t ilab=0;ilab<3;ilab++){ | |
1386 | milab[ilab] = pos[ip].GetLabel(ilab); | |
1387 | milab[ilab+3] = neg[j].GetLabel(ilab); | |
1388 | } | |
1389 | // | |
1390 | CheckLabels2(milab); | |
1391 | ratio = (pos[ip].GetQ()-neg[j].GetQ())/(pos[ip].GetQ()+neg[j].GetQ()); | |
1392 | milab[3]=(((ip<<10) + j)<<10) + idet; // pos|neg|det | |
1393 | Int_t info[3] = {pos[ip].GetNd(),neg[j].GetNd(),fNlayer[fI]}; | |
1394 | AliITSclusterV2 * cl2 = new (cl[ncl]) AliITSclusterV2(milab,lp,info); | |
1395 | ncl++; | |
1396 | cl2->SetChargeRatio(ratio); | |
1397 | cl2->SetType(10); | |
1398 | pairs[ip][j]=10; | |
1399 | if ((pos[ip].GetNd()+neg[j].GetNd())>6){ //multi cluster | |
1400 | cl2->SetType(11); | |
1401 | pairs[ip][j]=11; | |
1402 | } | |
1403 | cused1[ip]++; | |
1404 | cused2[j]++; | |
1405 | } | |
1406 | ||
1407 | } | |
1408 | ||
1409 | // | |
c391f9d9 | 1410 | for (Int_t i=0; i<np; i++) { |
c391f9d9 | 1411 | Float_t ybest=1000,zbest=1000,qbest=0; |
1412 | Float_t yp=pos[i].GetY()*fYpitchSSD; | |
e43c066c | 1413 | if (pos[i].GetQ()<3) continue; |
c391f9d9 | 1414 | for (Int_t j=0; j<nn; j++) { |
e43c066c | 1415 | // for (Int_t di = 0;di<cpositive[i];di++){ |
1416 | // Int_t j = negativepair[10*i+di]; | |
1417 | if (neg[j].GetQ()<3) continue; | |
1418 | if (cused2[j]||cused1[i]) continue; | |
1419 | if (pairs[i][j]>0 &&pairs[i][j]<100) continue; | |
1420 | ratio = (pos[i].GetQ()-neg[j].GetQ())/(pos[i].GetQ()+neg[j].GetQ()); | |
c391f9d9 | 1421 | Float_t yn=neg[j].GetY()*fYpitchSSD; |
1422 | Float_t zt=(2*fHlSSD*tanp + yp - yn)/(tann+tanp); | |
1423 | Float_t yt=yn + tann*zt; | |
1424 | zt-=fHlSSD; yt-=fHwSSD; | |
1425 | if (TMath::Abs(yt)<fHwSSD+0.01) | |
e43c066c | 1426 | if (TMath::Abs(zt)<fHlSSD+0.01*(neg[j].GetNd()+pos[i].GetNd())) { |
c391f9d9 | 1427 | ybest=yt; zbest=zt; |
1428 | qbest=0.5*(pos[i].GetQ()+neg[j].GetQ()); | |
f363d377 | 1429 | lp[0]=-(-ybest+fYshift[fI]); |
1430 | lp[1]= -zbest+fZshift[fI]; | |
e43c066c | 1431 | lp[2]=0.0025*0.0025; //SigmaY2 |
1432 | lp[3]=0.110*0.110; //SigmaZ2 | |
1433 | ||
c391f9d9 | 1434 | lp[4]=qbest; //Q |
babd135a | 1435 | for (Int_t ilab=0;ilab<10;ilab++) milab[ilab]=-2; |
e43c066c | 1436 | for (Int_t ilab=0;ilab<3;ilab++){ |
1437 | milab[ilab] = pos[i].GetLabel(ilab); | |
1438 | milab[ilab+3] = neg[j].GetLabel(ilab); | |
1439 | } | |
babd135a | 1440 | // |
babd135a | 1441 | CheckLabels2(milab); |
1442 | milab[3]=(((i<<10) + j)<<10) + idet; // pos|neg|det | |
e43c066c | 1443 | Int_t info[3] = {pos[i].GetNd(),neg[j].GetNd(),fNlayer[fI]}; |
1444 | AliITSclusterV2 * cl2 = new (cl[ncl]) AliITSclusterV2(milab,lp,info); | |
1445 | ncl++; | |
1446 | cl2->SetChargeRatio(ratio); | |
1447 | cl2->SetType(100+cpositive[j]+cnegative[i]); | |
1448 | //cl2->SetType(0); | |
1449 | /* | |
1450 | if (pairs[i][j]<100){ | |
1451 | printf("problem:- %d\n", pairs[i][j]); | |
1452 | } | |
1453 | if (cnegative[i]<2&&cpositive[j]<2){ | |
1454 | printf("problem:- %d\n", pairs[i][j]); | |
1455 | } | |
1456 | */ | |
c391f9d9 | 1457 | } |
1458 | } | |
c391f9d9 | 1459 | } |
a06cb96e | 1460 | |
0774985e | 1461 | // for (Int_t i=0; i<1000; i++) delete [] pairs[i]; |
1462 | // delete [] pairs; | |
a06cb96e | 1463 | |
c391f9d9 | 1464 | } |
1465 | ||
e43c066c | 1466 | |
7f4044f0 | 1467 | void AliITSclustererV2:: |
e43c066c | 1468 | FindClustersSSD(const TClonesArray *alldigits, TClonesArray *clusters) { |
7f4044f0 | 1469 | //------------------------------------------------------------ |
1470 | // Actual SSD cluster finder | |
1471 | //------------------------------------------------------------ | |
e43c066c | 1472 | Int_t smaxall=alldigits->GetEntriesFast(); |
1473 | if (smaxall==0) return; | |
1474 | TObjArray *digits = new TObjArray; | |
1475 | for (Int_t i=0;i<smaxall; i++){ | |
1476 | AliITSdigitSSD *d=(AliITSdigitSSD*)alldigits->UncheckedAt(i); | |
1477 | if (d->GetSignal()<3) continue; | |
1478 | digits->AddLast(d); | |
1479 | } | |
1480 | Int_t smax = digits->GetEntriesFast(); | |
7f4044f0 | 1481 | if (smax==0) return; |
e43c066c | 1482 | |
7f4044f0 | 1483 | const Int_t MAX=1000; |
1484 | Int_t np=0, nn=0; | |
1485 | Ali1Dcluster pos[MAX], neg[MAX]; | |
1486 | Float_t y=0., q=0., qmax=0.; | |
1487 | Int_t lab[4]={-2,-2,-2,-2}; | |
e43c066c | 1488 | |
7f4044f0 | 1489 | AliITSdigitSSD *d=(AliITSdigitSSD*)digits->UncheckedAt(0); |
1490 | q += d->GetSignal(); | |
1491 | y += d->GetCoord2()*d->GetSignal(); | |
1492 | qmax=d->GetSignal(); | |
1493 | lab[0]=d->GetTrack(0); lab[1]=d->GetTrack(1); lab[2]=d->GetTrack(2); | |
1494 | Int_t curr=d->GetCoord2(); | |
1495 | Int_t flag=d->GetCoord1(); | |
1496 | Int_t *n=&nn; | |
1497 | Ali1Dcluster *c=neg; | |
c391f9d9 | 1498 | Int_t nd=1; |
e43c066c | 1499 | Int_t milab[10]; |
1500 | for (Int_t ilab=0;ilab<10;ilab++){ | |
1501 | milab[ilab]=-2; | |
1502 | } | |
1503 | milab[0]=d->GetTrack(0); milab[1]=d->GetTrack(1); milab[2]=d->GetTrack(2); | |
1504 | ||
7f4044f0 | 1505 | for (Int_t s=1; s<smax; s++) { |
e43c066c | 1506 | d=(AliITSdigitSSD*)digits->UncheckedAt(s); |
7f4044f0 | 1507 | Int_t strip=d->GetCoord2(); |
1508 | if ((strip-curr) > 1 || flag!=d->GetCoord1()) { | |
1509 | c[*n].SetY(y/q); | |
1510 | c[*n].SetQ(q); | |
1511 | c[*n].SetNd(nd); | |
e43c066c | 1512 | CheckLabels2(milab); |
1513 | c[*n].SetLabels(milab); | |
7f4044f0 | 1514 | //Split suspiciously big cluster |
e43c066c | 1515 | /* |
1516 | if (nd>10&&nd<16){ | |
1517 | c[*n].SetY(y/q-0.3*nd); | |
1518 | c[*n].SetQ(0.5*q); | |
1519 | (*n)++; | |
1520 | if (*n==MAX) { | |
1521 | Error("FindClustersSSD","Too many 1D clusters !"); | |
7f4044f0 | 1522 | return; |
e43c066c | 1523 | } |
1524 | c[*n].SetY(y/q-0.0*nd); | |
1525 | c[*n].SetQ(0.5*q); | |
1526 | c[*n].SetNd(nd); | |
1527 | (*n)++; | |
1528 | if (*n==MAX) { | |
1529 | Error("FindClustersSSD","Too many 1D clusters !"); | |
1530 | return; | |
1531 | } | |
1532 | // | |
1533 | c[*n].SetY(y/q+0.3*nd); | |
1534 | c[*n].SetQ(0.5*q); | |
1535 | c[*n].SetNd(nd); | |
1536 | c[*n].SetLabels(milab); | |
1537 | } | |
1538 | else{ | |
1539 | */ | |
1540 | if (nd>4&&nd<25) { | |
1541 | c[*n].SetY(y/q-0.25*nd); | |
1542 | c[*n].SetQ(0.5*q); | |
1543 | (*n)++; | |
1544 | if (*n==MAX) { | |
1545 | Error("FindClustersSSD","Too many 1D clusters !"); | |
1546 | return; | |
1547 | } | |
1548 | c[*n].SetY(y/q+0.25*nd); | |
1549 | c[*n].SetQ(0.5*q); | |
1550 | c[*n].SetNd(nd); | |
1551 | c[*n].SetLabels(milab); | |
1552 | } | |
7f4044f0 | 1553 | (*n)++; |
1554 | if (*n==MAX) { | |
c630aafd | 1555 | Error("FindClustersSSD","Too many 1D clusters !"); |
7f4044f0 | 1556 | return; |
1557 | } | |
1558 | y=q=qmax=0.; | |
1559 | nd=0; | |
1560 | lab[0]=lab[1]=lab[2]=-2; | |
e43c066c | 1561 | // |
1562 | for (Int_t ilab=0;ilab<10;ilab++){ | |
1563 | milab[ilab]=-2; | |
1564 | } | |
1565 | // | |
7f4044f0 | 1566 | if (flag!=d->GetCoord1()) { n=&np; c=pos; } |
1567 | } | |
1568 | flag=d->GetCoord1(); | |
1569 | q += d->GetSignal(); | |
1570 | y += d->GetCoord2()*d->GetSignal(); | |
1571 | nd++; | |
1572 | if (d->GetSignal()>qmax) { | |
1573 | qmax=d->GetSignal(); | |
1574 | lab[0]=d->GetTrack(0); lab[1]=d->GetTrack(1); lab[2]=d->GetTrack(2); | |
1575 | } | |
e43c066c | 1576 | for (Int_t ilab=0;ilab<10;ilab++) { |
1577 | if (d->GetTrack(ilab)>=0) AddLabel(milab, (d->GetTrack(ilab))); | |
1578 | } | |
7f4044f0 | 1579 | curr=strip; |
1580 | } | |
1581 | c[*n].SetY(y/q); | |
1582 | c[*n].SetQ(q); | |
1583 | c[*n].SetNd(nd); | |
1584 | c[*n].SetLabels(lab); | |
1585 | //Split suspiciously big cluster | |
0e986ef9 | 1586 | if (nd>4 && nd<25) { |
1587 | c[*n].SetY(y/q-0.25*nd); | |
7f4044f0 | 1588 | c[*n].SetQ(0.5*q); |
1589 | (*n)++; | |
1590 | if (*n==MAX) { | |
c630aafd | 1591 | Error("FindClustersSSD","Too many 1D clusters !"); |
7f4044f0 | 1592 | return; |
1593 | } | |
0e986ef9 | 1594 | c[*n].SetY(y/q+0.25*nd); |
7f4044f0 | 1595 | c[*n].SetQ(0.5*q); |
1596 | c[*n].SetNd(nd); | |
1597 | c[*n].SetLabels(lab); | |
1598 | } | |
1599 | (*n)++; | |
1600 | if (*n==MAX) { | |
c630aafd | 1601 | Error("FindClustersSSD","Too many 1D clusters !"); |
7f4044f0 | 1602 | return; |
1603 | } | |
1604 | ||
c391f9d9 | 1605 | FindClustersSSD(neg, nn, pos, np, clusters); |
1606 | } | |
7f4044f0 | 1607 | |
c391f9d9 | 1608 | void AliITSclustererV2::FindClustersSSD(AliITSRawStream* input, |
1609 | TClonesArray** clusters) | |
1610 | { | |
1611 | //------------------------------------------------------------ | |
1612 | // Actual SSD cluster finder for raw data | |
1613 | //------------------------------------------------------------ | |
1614 | Int_t nClustersSSD = 0; | |
1615 | const Int_t MAX = 1000; | |
1616 | Ali1Dcluster clusters1D[2][MAX]; | |
1617 | Int_t nClusters[2] = {0, 0}; | |
0e986ef9 | 1618 | Int_t lab[3]={-2,-2,-2}; |
c391f9d9 | 1619 | Float_t q = 0.; |
1620 | Float_t y = 0.; | |
1621 | Int_t nDigits = 0; | |
1622 | Int_t prevStrip = -1; | |
1623 | Int_t prevFlag = -1; | |
0e986ef9 | 1624 | Int_t prevModule = -1; |
c391f9d9 | 1625 | |
1626 | // read raw data input stream | |
1627 | while (kTRUE) { | |
1628 | Bool_t next = input->Next(); | |
1629 | ||
0e986ef9 | 1630 | if(input->GetSignal()<3 && next) continue; |
c391f9d9 | 1631 | // check if a new cluster starts |
1632 | Int_t strip = input->GetCoord2(); | |
1633 | Int_t flag = input->GetCoord1(); | |
0e986ef9 | 1634 | if ((!next || (input->GetModuleID() != prevModule)|| |
c391f9d9 | 1635 | (strip-prevStrip > 1) || (flag != prevFlag)) && |
1636 | (nDigits > 0)) { | |
1637 | if (nClusters[prevFlag] == MAX) { | |
1638 | Error("FindClustersSSD", "Too many 1D clusters !"); | |
1639 | return; | |
1640 | } | |
1641 | Ali1Dcluster& cluster = clusters1D[prevFlag][nClusters[prevFlag]++]; | |
1642 | cluster.SetY(y/q); | |
1643 | cluster.SetQ(q); | |
1644 | cluster.SetNd(nDigits); | |
0e986ef9 | 1645 | cluster.SetLabels(lab); |
c391f9d9 | 1646 | |
1647 | //Split suspiciously big cluster | |
0e986ef9 | 1648 | if (nDigits > 4&&nDigits < 25) { |
1649 | cluster.SetY(y/q - 0.25*nDigits); | |
c391f9d9 | 1650 | cluster.SetQ(0.5*q); |
1651 | if (nClusters[prevFlag] == MAX) { | |
1652 | Error("FindClustersSSD", "Too many 1D clusters !"); | |
1653 | return; | |
1654 | } | |
1655 | Ali1Dcluster& cluster2 = clusters1D[prevFlag][nClusters[prevFlag]++]; | |
0e986ef9 | 1656 | cluster2.SetY(y/q + 0.25*nDigits); |
c391f9d9 | 1657 | cluster2.SetQ(0.5*q); |
1658 | cluster2.SetNd(nDigits); | |
0e986ef9 | 1659 | cluster2.SetLabels(lab); |
7f4044f0 | 1660 | } |
c391f9d9 | 1661 | y = q = 0.; |
1662 | nDigits = 0; | |
7f4044f0 | 1663 | } |
c391f9d9 | 1664 | |
0e986ef9 | 1665 | if (!next || (input->GetModuleID() != prevModule)) { |
1666 | Int_t iModule = prevModule; | |
c391f9d9 | 1667 | |
1668 | // when all data from a module was read, search for clusters | |
1669 | if (prevFlag >= 0) { | |
1670 | clusters[iModule] = new TClonesArray("AliITSclusterV2"); | |
1671 | fI = iModule; | |
1672 | FindClustersSSD(&clusters1D[0][0], nClusters[0], | |
1673 | &clusters1D[1][0], nClusters[1], clusters[iModule]); | |
e8f4b841 | 1674 | Int_t noClusters = clusters[iModule]->GetEntriesFast(); |
1675 | nClustersSSD += noClusters; | |
c391f9d9 | 1676 | } |
1677 | ||
1678 | if (!next) break; | |
1679 | nClusters[0] = nClusters[1] = 0; | |
1680 | y = q = 0.; | |
1681 | nDigits = 0; | |
7f4044f0 | 1682 | } |
c391f9d9 | 1683 | |
1684 | // add digit to current cluster | |
1685 | q += input->GetSignal(); | |
1686 | y += strip * input->GetSignal(); | |
1687 | nDigits++; | |
1688 | prevStrip = strip; | |
1689 | prevFlag = flag; | |
0e986ef9 | 1690 | prevModule = input->GetModuleID(); |
1691 | ||
7f4044f0 | 1692 | } |
c391f9d9 | 1693 | |
1694 | Info("FindClustersSSD", "found clusters in ITS SSD: %d", nClustersSSD); | |
7f4044f0 | 1695 | } |
1696 |