1 /**************************************************************************
2 * Copyright(c) 2007-2009, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
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 **************************************************************************/
18 ////////////////////////////////////////////////////////////////////////////
19 // Implementation of the ITS clusterer V2 class //
21 // Origin: Iouri Belikov, CERN, Jouri.Belikov@cern.ch //
22 // Last revision: 13-05-09 Enrico Fragiacomo //
23 // enrico.fragiacomo@ts.infn.it //
25 ///////////////////////////////////////////////////////////////////////////
27 #include <Riostream.h>
30 #include "AliITSClusterFinderV2SSD.h"
31 #include "AliITSRecPoint.h"
32 #include "AliITSgeomTGeo.h"
33 #include "AliITSDetTypeRec.h"
34 #include "AliRawReader.h"
35 #include "AliITSRawStreamSSD.h"
36 #include <TClonesArray.h>
37 #include "AliITSdigitSSD.h"
38 #include "AliITSReconstructor.h"
39 #include "AliITSCalibrationSSD.h"
40 #include "AliITSsegmentationSSD.h"
42 Short_t *AliITSClusterFinderV2SSD::fgPairs = 0x0;
43 Int_t AliITSClusterFinderV2SSD::fgPairsSize = 0;
44 const Float_t AliITSClusterFinderV2SSD::fgkThreshold = 5.;
46 const Float_t AliITSClusterFinderV2SSD::fgkCosmic2008StripShifts[16][9] =
47 {{-0.35,-0.35,-0.35,-0.35,-0.35,-0.35,-0.35,-0.35,-0.35}, // DDL 512
48 {-0.35,-0.35,-0.35,-0.35,-0.35,-0.35,-0.35,-0.35,-0.35}, // DDL 513
49 {-0.15,-0.15,-0.15,-0.15,-0.15,-0.15,-0.15,-0.15,-0.15}, // DDL 514
50 {-0.15,-0.15,-0.15,-0.15,-0.15,-0.15,-0.15,-0.15,-0.15}, // DDL 515
51 { 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00}, // DDL 516
52 { 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00}, // DDL 517
53 {-0.15,-0.15,-0.15,-0.15,-0.15,-0.15,-0.15,-0.15,-0.15}, // DDL 518
54 {-0.15,-0.15,-0.15,-0.15,-0.15,-0.15,-0.15,-0.15,-0.15}, // DDL 519
55 {-0.15,-0.15,-0.15,-0.15,-0.15,-0.15,-0.15,-0.25,-0.15}, // DDL 520
56 {-0.15,-0.15,-0.15,-0.15,-0.15,-0.15,-0.15,-0.15,-0.15}, // DDL 521
57 {-0.10,-0.10,-0.10,-0.40,-0.40,-0.40,-0.10,-0.10,-0.45}, // DDL 522
58 {-0.10,-0.10,-0.10,-0.35,-0.35,-0.35,-0.10,-0.35,-0.50}, // DDL 523
59 { 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00}, // DDL 524
60 { 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00}, // DDL 525
61 { 0.35, 0.35, 0.35, 0.35, 0.35, 0.35, 0.35, 0.35, 0.35}, // DDL 526
62 { 0.45, 0.45, 0.45, 0.45, 0.45, 0.45, 0.45, 0.45, 0.45}}; // DDL 527
64 ClassImp(AliITSClusterFinderV2SSD)
67 AliITSClusterFinderV2SSD::AliITSClusterFinderV2SSD(AliITSDetTypeRec* dettyp):AliITSClusterFinder(dettyp),
68 fLastSSD1(AliITSgeomTGeo::GetModuleIndex(6,1,1)-1)
74 //______________________________________________________________________
75 AliITSClusterFinderV2SSD::AliITSClusterFinderV2SSD(const AliITSClusterFinderV2SSD &cf) : AliITSClusterFinder(cf), fLastSSD1(cf.fLastSSD1)
80 //______________________________________________________________________
81 AliITSClusterFinderV2SSD& AliITSClusterFinderV2SSD::operator=(const AliITSClusterFinderV2SSD& cf ){
82 // Assignment operator
84 this->~AliITSClusterFinderV2SSD();
85 new(this) AliITSClusterFinderV2SSD(cf);
90 void AliITSClusterFinderV2SSD::FindRawClusters(Int_t mod){
94 FindClustersSSD(fDigits);
98 void AliITSClusterFinderV2SSD::FindClustersSSD(TClonesArray *alldigits) {
99 //------------------------------------------------------------
100 // Actual SSD cluster finder
101 //------------------------------------------------------------
102 Int_t smaxall=alldigits->GetEntriesFast();
103 if (smaxall==0) return;
106 //---------------------------------------
107 // load recoparam and calibration
109 static AliITSRecoParam *repa = NULL;
111 repa = (AliITSRecoParam*) AliITSReconstructor::GetRecoParam();
113 repa = AliITSRecoParam::GetHighFluxParam();
114 AliWarning("Using default AliITSRecoParam class");
118 AliITSCalibrationSSD* cal = (AliITSCalibrationSSD*)GetResp(fModule);
121 //---------------------------------------
124 //------------------------------------
125 // fill the digits array with zero-suppression condition
126 // Signal is converted in KeV
129 for (Int_t i=0;i<smaxall; i++){
130 AliITSdigitSSD *d=(AliITSdigitSSD*)alldigits->UncheckedAt(i);
132 if(d->IsSideP()) noise = cal->GetNoiseP(d->GetStripNumber());
133 else noise = cal->GetNoiseN(d->GetStripNumber());
134 if (d->GetSignal()<3.*noise) continue;
136 if(d->IsSideP()) gain = cal->GetGainP(d->GetStripNumber());
137 else gain = cal->GetGainN(d->GetStripNumber());
139 Float_t q=gain*d->GetSignal(); //
140 q=cal->ADCToKeV(q); // converts the charge in KeV from ADC units
141 d->SetSignal(Int_t(q));
145 Int_t smax = digits.GetEntriesFast();
147 //------------------------------------
150 const Int_t kMax=1000;
152 Ali1Dcluster pos[kMax], neg[kMax];
153 Float_t y=0., q=0., qmax=0.;
154 Int_t lab[4]={-2,-2,-2,-2};
158 cout<<"-----------------------------"<<endl;
159 cout<<"this is module "<<fModule;
164 //--------------------------------------------------------
165 // start 1D-clustering from the first digit in the digits array
167 AliITSdigitSSD *d=(AliITSdigitSSD*)digits.UncheckedAt(0);
169 y += d->GetCoord2()*d->GetSignal();
171 lab[0]=d->GetTrack(0); lab[1]=d->GetTrack(1); lab[2]=d->GetTrack(2);
174 noise = cal->GetNoiseP(d->GetStripNumber());
175 gain = cal->GetGainP(d->GetStripNumber());
178 noise = cal->GetNoiseN(d->GetStripNumber());
179 gain = cal->GetGainN(d->GetStripNumber());
182 noise=cal->ADCToKeV(noise); // converts noise in KeV from ADC units
184 if(qmax>fgkThreshold*noise) flag5=1; // seed for the cluster
187 cout<<d->GetSignal()<<" "<<noise<<" "<<flag5<<" "<<
188 d->GetCoord1()<<" "<<d->GetCoord2()<<endl;
191 Int_t curr=d->GetCoord2();
192 Int_t flag=d->GetCoord1();
194 // Note: the first side which will be processed is supposed to be the
195 // P-side which is neg
198 if(flag) {n=&np; c=pos;} // in case we have only Nstrips (P was bad!)
202 for (Int_t ilab=0;ilab<10;ilab++){
205 milab[0]=d->GetTrack(0); milab[1]=d->GetTrack(1); milab[2]=d->GetTrack(2);
208 //----------------------------------------------------------
209 // search for neighboring digits
211 for (Int_t s=1; s<smax; s++) {
212 d=(AliITSdigitSSD*)digits.UncheckedAt(s);
213 Int_t strip=d->GetCoord2();
215 // if digits is not a neighbour or side did not change
216 // and at least one of the previous digits met the seed condition
217 // then creates a new 1D cluster
218 if ( ( ((strip-curr) > 1) || (flag!=d->GetCoord1()) ) ) {
221 //cout<<"here1"<<endl;
226 c[*n].SetLabels(milab);
228 if(repa->GetUseUnfoldingInClusterFinderSSD()==kTRUE) {
229 // Note: fUseUnfoldingInClusterFinderSSD=kFALSE by default in RecoParam
231 //Split suspiciously big cluster
233 c[*n].SetY(y/q-0.25*nd);
237 Error("FindClustersSSD","Too many 1D clusters !");
240 c[*n].SetY(y/q+0.25*nd);
243 c[*n].SetLabels(milab);
250 Error("FindClustersSSD","Too many 1D clusters !");
260 lab[0]=lab[1]=lab[2]=-2;
261 for (Int_t ilab=0;ilab<10;ilab++) milab[ilab]=-2;
263 // if side changed from P to N, switch to pos 1D clusters
264 // (if for some reason the side changed from N to P then do the opposite)
265 if (flag!=d->GetCoord1())
266 { if(!flag) {n=&np; c=pos;} else {n=&nn; c=neg;} }
268 } // end create new 1D cluster from previous neighboring digits
270 // continues adding digits to the previous cluster
271 // or start a new one
274 y += d->GetCoord2()*d->GetSignal();
278 noise = cal->GetNoiseP(d->GetStripNumber());
279 gain = cal->GetGainP(d->GetStripNumber());
282 noise = cal->GetNoiseN(d->GetStripNumber());
283 gain = cal->GetGainN(d->GetStripNumber());
286 noise=cal->ADCToKeV(noise); // converts the charge in KeV from ADC units
288 if(d->GetSignal()>fgkThreshold*noise) flag5=1;
291 cout<<d->GetSignal()<<" "<<noise<<" "<<flag5<<" "<<
292 d->GetCoord1()<<" "<<d->GetCoord2()<<endl;
295 if (d->GetSignal()>qmax) {
297 lab[0]=d->GetTrack(0); lab[1]=d->GetTrack(1); lab[2]=d->GetTrack(2);
299 for (Int_t ilab=0;ilab<10;ilab++) {
300 if (d->GetTrack(ilab)>=0) AddLabel(milab, (d->GetTrack(ilab)));
305 } // loop over digits, no more digits in the digits array
308 // add the last 1D cluster
311 // cout<<"here2"<<endl;
316 c[*n].SetLabels(lab);
318 if(repa->GetUseUnfoldingInClusterFinderSSD()==kTRUE) {
320 //Split suspiciously big cluster
322 c[*n].SetY(y/q-0.25*nd);
326 Error("FindClustersSSD","Too many 1D clusters !");
329 c[*n].SetY(y/q+0.25*nd);
332 c[*n].SetLabels(lab);
338 Error("FindClustersSSD","Too many 1D clusters !");
342 } // if flag5 last 1D cluster added
345 //------------------------------------------------------
346 // call FindClustersSSD to pair neg and pos 1D clusters
347 // and create recpoints from the crosses
348 // Note1: neg are Pside and pos are Nside!!
349 // Note2: if there are no Pside digits nn=0 (bad strips!!) (same for Nside)
351 // cout<<nn<<" Pside and "<<np<<" Nside clusters"<<endl;
352 FindClustersSSD(neg, nn, pos, np);
354 //-----------------------------------------------------
359 void AliITSClusterFinderV2SSD::RawdataToClusters(AliRawReader* rawReader,TClonesArray** clusters){
361 //------------------------------------------------------------
362 // This function creates ITS clusters from raw data
363 //------------------------------------------------------------
365 AliITSRawStreamSSD inputSSD(rawReader);
366 FindClustersSSD(&inputSSD,clusters);
370 void AliITSClusterFinderV2SSD::FindClustersSSD(AliITSRawStreamSSD* input,
371 TClonesArray** clusters)
373 //------------------------------------------------------------
374 // Actual SSD cluster finder for raw data
375 //------------------------------------------------------------
377 static AliITSRecoParam *repa = NULL;
379 repa = (AliITSRecoParam*) AliITSReconstructor::GetRecoParam();
381 repa = AliITSRecoParam::GetHighFluxParam();
382 AliWarning("Using default AliITSRecoParam class");
386 Int_t nClustersSSD = 0;
387 const Int_t kMax = 1000;
388 Ali1Dcluster clusters1D[2][kMax];
389 Int_t nClusters[2] = {0, 0};
390 Int_t lab[3]={-2,-2,-2};
396 // Float_t pedestal=0.;
398 AliITSCalibrationSSD* cal=NULL;
400 Int_t matrix[12][1536];
407 Int_t osignal = 65535;
411 // read raw data input stream
414 // reset signal matrix
415 for(Int_t i=0; i<12; i++) { for(Int_t j=0; j<1536; j++) { matrix[i][j] = 65535;} }
417 if((osignal!=65535)&&(ostrip>0)&&(ostrip<1536)) {
419 matrix[oadc][ostrip] = osignal; // recover data from previous occurence of input->Next()
422 // buffer data for ddl=iddl and ad=iad
425 next = input->Next();
426 if((!next)&&(input->flag)) continue;
427 Int_t ddl=input->GetDDL();
428 Int_t ad=input->GetAD();
429 Int_t adc = input->GetADC(); adc = (adc<6)? adc : adc - 2;
430 Int_t strip = input->GetStrip();
431 if(input->GetSideFlag()) strip=1535-strip;
432 Int_t signal = input->GetSignal();
434 if((ddl==iddl)&&(ad==iad)&&(strip>0)&&(strip<1536)) {n++; matrix[adc][strip] = signal;}
435 else {if ((strip<1536) && (strip>0)) {oddl=iddl; oad=iad; oadc = adc; ostrip = strip; osignal=signal; iddl=ddl; iad=ad; break;}}
437 if(!next) {oddl=iddl; oad=iad; oadc = adc; ostrip = strip; osignal=signal; iddl=ddl; iad=ad; break;}
442 if(!next && oddl<0) break;
444 if(n==0) continue; // first occurence
448 if (repa->GetUseCosmicRunShiftsSSD()) { // Special condition for 2007/2008 cosmic data
449 dStrip = fgkCosmic2008StripShifts[oddl][oad-1];
451 if (TMath::Abs(dStrip) > 1.5)
452 AliError(Form("Indexing error ? oddl = %d, dStrip %f\n",oddl,dStrip));
454 for(Int_t iadc=0; iadc<12; iadc++) { // loop over ADC index for ddl=oddl and ad=oad
456 Int_t iimod = (oad - 1) * 12 + iadc;
457 Int_t iModule = AliITSRawStreamSSD::GetModuleNumber(oddl,iimod);
458 if(iModule==-1) continue;
459 cal = (AliITSCalibrationSSD*)GetResp(iModule);
465 for(Int_t istrip=0; istrip<768; istrip++) { // P-side
466 Int_t signal = matrix[iadc][istrip];
467 pedestal = cal->GetPedestalP(istrip);
468 matrix[iadc][istrip]=signal-(Int_t)pedestal;
474 for(Int_t l=0; l<6; l++) {
476 for(Int_t n=20; n<108; n++) cmode+=matrix[iadc][l*128+n];
478 for(Int_t n=0; n<128; n++) matrix[iadc][l*128+n]-=(Int_t)cmode;
484 for(istrip=0; istrip<768; istrip++) { // P-side
486 Int_t signal = TMath::Abs(matrix[iadc][istrip]);
489 noise = cal->GetNoiseP(istrip); if(noise<1.) signal = 65535;
490 if(signal<3*noise) signal = 65535; // in case ZS was not done in hw do it now
492 // if(cal->IsPChannelBad(istrip)) signal=0;
495 gain = cal->GetGainP(istrip);
496 signal = (Int_t) ( signal * gain ); // signal is corrected for gain
497 if(signal>fgkThreshold*noise) flag5=1;
498 signal = (Int_t) cal->ADCToKeV( signal ); // signal is converted in KeV
500 q += signal; // add digit to current cluster
501 y += istrip * signal;
508 if ( (nDigits>0) && flag5 ) {
510 Ali1Dcluster& cluster = clusters1D[0][nClusters[0]++];
512 if(q!=0) cluster.SetY(y/q + dStrip);
513 else cluster.SetY(istrip + dStrip -1);
516 cluster.SetNd(nDigits);
517 cluster.SetLabels(lab);
519 if(repa->GetUseUnfoldingInClusterFinderSSD()==kTRUE) {
521 //Split suspiciously big cluster
522 if (nDigits > 4&&nDigits < 25) {
523 if(q!=0) cluster.SetY(y/q + dStrip - 0.25*nDigits);
524 else cluster.SetY(istrip-1 + dStrip - 0.25*nDigits);
526 if (nClusters[0] == kMax) {
527 Error("FindClustersSSD", "Too many 1D clusters !");
530 Ali1Dcluster& cluster2 = clusters1D[0][nClusters[0]++];
531 if(q!=0) cluster2.SetY(y/q + dStrip + 0.25*nDigits);
532 else cluster2.SetY(istrip-1 + dStrip + 0.25*nDigits);
533 cluster2.SetQ(0.5*q);
534 cluster2.SetNd(nDigits);
535 cluster2.SetLabels(lab);
546 } // loop over strip on P-side
548 // if last strip does have signal
551 if ( (nDigits>0) && flag5 ) {
553 Ali1Dcluster& cluster = clusters1D[0][nClusters[0]++];
555 if(q!=0) cluster.SetY(y/q + dStrip);
556 else cluster.SetY(istrip - 1 + dStrip);
559 cluster.SetNd(nDigits);
560 cluster.SetLabels(lab);
562 if(repa->GetUseUnfoldingInClusterFinderSSD()==kTRUE) {
564 //Split suspiciously big cluster
565 if (nDigits > 4&&nDigits < 25) {
566 if(q!=0) cluster.SetY(y/q + dStrip - 0.25*nDigits);
567 else cluster.SetY(istrip-1 + dStrip - 0.25*nDigits);
569 if (nClusters[0] == kMax) {
570 Error("FindClustersSSD", "Too many 1D clusters !");
573 Ali1Dcluster& cluster2 = clusters1D[0][nClusters[0]++];
574 if(q!=0) cluster2.SetY(y/q + dStrip + 0.25*nDigits);
575 else cluster2.SetY(istrip-1 + dStrip + 0.25*nDigits);
576 cluster2.SetQ(0.5*q);
577 cluster2.SetNd(nDigits);
578 cluster2.SetLabels(lab);
590 for(Int_t istrip=768; istrip<1536; istrip++) { // P-side
591 Int_t signal = matrix[iadc][istrip];
592 pedestal = cal->GetPedestalN(1535-istrip);
593 matrix[iadc][istrip]=signal-(Int_t)pedestal;
598 for(Int_t l=6; l<12; l++) {
600 for(Int_t n=20; n<108; n++) cmode+=matrix[iadc][l*128+n];
602 for(Int_t n=0; n<128; n++) matrix[iadc][l*128+n]-=(Int_t)cmode;
609 for(Int_t iistrip=768; iistrip<1536; iistrip++) { // N-side
611 Int_t signal = TMath::Abs(matrix[iadc][iistrip]);
612 strip = 1535-iistrip;
615 noise = cal->GetNoiseN(strip); if(noise<1.) signal=65535;
617 // if(cal->IsNChannelBad(strip)) signal=0;
619 if(signal<3*noise) signal = 65535; // in case ZS was not done in hw do it now
622 gain = cal->GetGainN(strip);
623 signal = (Int_t) ( signal * gain); // signal is corrected for gain
624 if(signal>fgkThreshold*noise) flag5=1;
625 signal = (Int_t) cal->ADCToKeV( signal ); // signal is converted in KeV
627 // add digit to current cluster
636 if ( (nDigits>0) && flag5 ) {
638 Ali1Dcluster& cluster = clusters1D[1][nClusters[1]++];
640 if(q!=0) cluster.SetY(y/q - dStrip);
641 else cluster.SetY(strip+1 - dStrip);
644 cluster.SetNd(nDigits);
645 cluster.SetLabels(lab);
647 if(repa->GetUseUnfoldingInClusterFinderSSD()==kTRUE) {
649 //Split suspiciously big cluster
650 if (nDigits > 4&&nDigits < 25) {
651 cluster.SetY(y/q - dStrip - 0.25*nDigits);
653 if (nClusters[1] == kMax) {
654 Error("FindClustersSSD", "Too many 1D clusters !");
657 Ali1Dcluster& cluster2 = clusters1D[1][nClusters[1]++];
658 cluster2.SetY(y/q - dStrip + 0.25*nDigits);
659 cluster2.SetQ(0.5*q);
660 cluster2.SetNd(nDigits);
661 cluster2.SetLabels(lab);
672 } // loop over strips on N-side
676 if ( (nDigits>0) && flag5 ) {
678 Ali1Dcluster& cluster = clusters1D[1][nClusters[1]++];
680 if(q!=0) cluster.SetY(y/q - dStrip);
681 else cluster.SetY(strip - dStrip + 1);
684 cluster.SetNd(nDigits);
685 cluster.SetLabels(lab);
687 if(repa->GetUseUnfoldingInClusterFinderSSD()==kTRUE) {
689 //Split suspiciously big cluster
690 if (nDigits > 4&&nDigits < 25) {
691 if(q!=0) cluster.SetY(y/q - dStrip - 0.25*nDigits);
692 else cluster.SetY(strip+1 - dStrip - 0.25*nDigits);
694 if (nClusters[1] == kMax) {
695 Error("FindClustersSSD", "Too many 1D clusters !");
698 Ali1Dcluster& cluster2 = clusters1D[1][nClusters[1]++];
699 if(q!=0) cluster2.SetY(y/q - dStrip + 0.25*nDigits);
700 else cluster2.SetY(strip+1 - dStrip + 0.25*nDigits);
701 cluster2.SetQ(0.5*q);
702 cluster2.SetNd(nDigits);
703 cluster2.SetLabels(lab);
715 if((nClusters[0])&&(nClusters[1])) {
717 clusters[iModule] = new TClonesArray("AliITSRecPoint");
719 FindClustersSSD(&clusters1D[0][0], nClusters[0],
720 &clusters1D[1][0], nClusters[1], clusters[iModule]);
721 Int_t nClustersn = clusters[iModule]->GetEntriesFast();
722 nClustersSSD += nClustersn;
725 nClusters[0] = nClusters[1] = 0;
734 Info("FindClustersSSD", "found clusters in ITS SSD: %d", nClustersSSD);
737 void AliITSClusterFinderV2SSD::
738 FindClustersSSD(Ali1Dcluster* neg, Int_t nn,
739 Ali1Dcluster* pos, Int_t np,
740 TClonesArray *clusters) {
741 //------------------------------------------------------------
742 // Actual SSD cluster finder
743 //------------------------------------------------------------
745 const TGeoHMatrix *mT2L=AliITSgeomTGeo::GetTracking2LocalMatrix(fModule);
747 //---------------------------------------
750 static AliITSRecoParam *repa = NULL;
752 repa = (AliITSRecoParam*) AliITSReconstructor::GetRecoParam();
754 repa = AliITSRecoParam::GetHighFluxParam();
755 AliWarning("Using default AliITSRecoParam class");
759 TClonesArray &cl=*clusters;
761 AliITSsegmentationSSD *seg = dynamic_cast<AliITSsegmentationSSD*>(fDetTypeRec->GetSegmentationModel(2));
762 if (fModule>fLastSSD1)
767 Float_t hwSSD = seg->Dx()*1e-4/2;
768 Float_t hlSSD = seg->Dz()*1e-4/2;
770 Int_t idet=fNdet[fModule];
774 Int_t *cnegative = new Int_t[np];
775 Int_t *cused1 = new Int_t[np];
776 Int_t *negativepair = new Int_t[10*np];
777 Int_t *cpositive = new Int_t[nn];
778 Int_t *cused2 = new Int_t[nn];
779 Int_t *positivepair = new Int_t[10*nn];
780 for (Int_t i=0;i<np;i++) {cnegative[i]=0; cused1[i]=0;}
781 for (Int_t i=0;i<nn;i++) {cpositive[i]=0; cused2[i]=0;}
782 for (Int_t i=0;i<10*np;i++) {negativepair[i]=0;}
783 for (Int_t i=0;i<10*nn;i++) {positivepair[i]=0;}
785 if ((np*nn) > fgPairsSize) {
787 if (fgPairs) delete [] fgPairs;
788 fgPairsSize = 4*np*nn;
789 fgPairs = new Short_t[fgPairsSize];
791 memset(fgPairs,0,sizeof(Short_t)*np*nn);
794 // find available pairs
796 for (Int_t i=0; i<np; i++) {
797 Float_t yp=pos[i].GetY();
798 if ( (pos[i].GetQ()>0) && (pos[i].GetQ()<3) ) continue;
799 for (Int_t j=0; j<nn; j++) {
800 if ( (neg[j].GetQ()>0) && (neg[j].GetQ()<3) ) continue;
801 Float_t yn=neg[j].GetY();
804 seg->GetPadCxz(yn, yp, xt, zt);
805 //cout<<yn<<" "<<yp<<" "<<xt<<" "<<zt<<endl;
807 if (TMath::Abs(xt)<hwSSD)
808 if (TMath::Abs(zt)<hlSSD) {
809 Int_t in = i*10+cnegative[i];
810 Int_t ip = j*10+cpositive[j];
811 if ((in < 10*np) && (ip < 10*nn)) {
812 negativepair[in] =j; //index
814 cnegative[i]++; //counters
819 AliError(Form("Index out of range: ip=%d, in=%d",ip,in));
825 // try to recover points out of but close to the module boundaries
827 for (Int_t i=0; i<np; i++) {
828 Float_t yp=pos[i].GetY();
829 if ( (pos[i].GetQ()>0) && (pos[i].GetQ()<3) ) continue;
830 for (Int_t j=0; j<nn; j++) {
831 if ( (neg[j].GetQ()>0) && (neg[j].GetQ()<3) ) continue;
832 // if both 1Dclusters have an other cross continue
833 if (cpositive[j]&&cnegative[i]) continue;
834 Float_t yn=neg[j].GetY();
837 seg->GetPadCxz(yn, yp, xt, zt);
839 if (TMath::Abs(xt)<hwSSD+0.1)
840 if (TMath::Abs(zt)<hlSSD+0.15) {
841 // tag 1Dcluster (eventually will produce low quality recpoint)
842 if (cnegative[i]==0) pos[i].SetNd(100); // not available pair
843 if (cpositive[j]==0) neg[j].SetNd(100); // not available pair
844 Int_t in = i*10+cnegative[i];
845 Int_t ip = j*10+cpositive[j];
846 if ((in < 10*np) && (ip < 10*nn)) {
847 negativepair[in] =j; //index
849 cnegative[i]++; //counters
854 AliError(Form("Index out of range: ip=%d, in=%d",ip,in));
866 if(repa->GetUseChargeMatchingInClusterFinderSSD()==kTRUE) {
872 for (Int_t ip=0;ip<np;ip++){
873 Float_t xbest=1000,zbest=1000,qbest=0;
875 // select gold clusters
876 if ( (cnegative[ip]==1) && cpositive[negativepair[10*ip]]==1){
877 Float_t yp=pos[ip].GetY();
878 Int_t j = negativepair[10*ip];
880 if( (pos[ip].GetQ()==0) && (neg[j].GetQ() ==0) ) {
881 // both bad, hence continue;
882 // mark both as used (to avoid recover at the end)
888 ratio = (pos[ip].GetQ()-neg[j].GetQ())/(pos[ip].GetQ()+neg[j].GetQ());
889 //cout<<"ratio="<<ratio<<endl;
891 // charge matching (note that if posQ or negQ is 0 -> ratio=1 and the following condition is met
892 if (TMath::Abs(ratio)>0.2) continue; // note: 0.2=3xsigma_ratio calculated in cosmics tests
895 Float_t yn=neg[j].GetY();
898 seg->GetPadCxz(yn, yp, xt, zt);
903 qbest=0.5*(pos[ip].GetQ()+neg[j].GetQ());
904 if( (pos[ip].GetQ()==0)||(neg[j].GetQ()==0)) qbest*=2; // in case of bad strips on one side keep all charge from the other one
907 Double_t loc[3]={xbest,0.,zbest},trk[3]={0.,0.,0.};
908 mT2L->MasterToLocal(loc,trk);
913 for (Int_t ilab=0;ilab<10;ilab++) milab[ilab]=-2;
914 for (Int_t ilab=0;ilab<3;ilab++){
915 milab[ilab] = pos[ip].GetLabel(ilab);
916 milab[ilab+3] = neg[j].GetLabel(ilab);
920 milab[3]=(((ip<<10) + j)<<10) + idet; // pos|neg|det
921 Int_t info[3] = {pos[ip].GetNd(),neg[j].GetNd(),fNlayer[fModule]};
923 lp[2]=0.0022*0.0022; //SigmaY2
924 lp[3]=0.110*0.110; //SigmaZ2
925 // out-of-diagonal element of covariance matrix
926 if( (info[0]==1) && (info[1]==1) ) lp[5]=-0.00012;
927 else if ( (info[0]>1) && (info[1]>1) ) {
928 lp[2]=0.0016*0.0016; //SigmaY2
929 lp[3]=0.08*0.08; //SigmaZ2
934 if (info[0]==1) { lp[5]=-0.00014;}
935 else { lp[2]=0.0017*0.0017; lp[5]=-0.00004;}
938 AliITSRecPoint * cl2;
940 if(clusters){ // Note clusters != 0 when method is called for rawdata
943 cl2 = new (cl[ncl]) AliITSRecPoint(milab,lp,info);
945 cl2->SetChargeRatio(ratio);
949 if ((pos[ip].GetNd()+neg[j].GetNd())>6){ //multi cluster
954 if(pos[ip].GetQ()==0) cl2->SetType(3);
955 if(neg[j].GetQ()==0) cl2->SetType(4);
961 else{ // Note clusters == 0 when method is called for digits
963 cl2 = new AliITSRecPoint(milab,lp,info);
965 cl2->SetChargeRatio(ratio);
969 if ((pos[ip].GetNd()+neg[j].GetNd())>6){ //multi cluster
974 if(pos[ip].GetQ()==0) cl2->SetType(3);
975 if(neg[j].GetQ()==0) cl2->SetType(4);
980 fDetTypeRec->AddRecPoint(*cl2);
986 for (Int_t ip=0;ip<np;ip++){
987 Float_t xbest=1000,zbest=1000,qbest=0;
990 // select "silber" cluster
991 if ( cnegative[ip]==1 && cpositive[negativepair[10*ip]]==2){
992 Int_t in = negativepair[10*ip];
993 Int_t ip2 = positivepair[10*in];
994 if (ip2==ip) ip2 = positivepair[10*in+1];
995 Float_t pcharge = pos[ip].GetQ()+pos[ip2].GetQ();
999 ratio = (pcharge-neg[in].GetQ())/(pcharge+neg[in].GetQ());
1000 if ( (TMath::Abs(ratio)<0.2) && (pcharge!=0) ) {
1001 //if ( (TMath::Abs(pcharge-neg[in].GetQ())<30) && (pcharge!=0) ) { //
1005 if ( (fgPairs[ip*nn+in]==100)&&(pos[ip].GetQ() ) ) { //
1007 Float_t yp=pos[ip].GetY();
1008 Float_t yn=neg[in].GetY();
1011 seg->GetPadCxz(yn, yp, xt, zt);
1015 qbest =pos[ip].GetQ();
1016 Double_t loc[3]={xbest,0.,zbest},trk[3]={0.,0.,0.};
1017 mT2L->MasterToLocal(loc,trk);
1022 for (Int_t ilab=0;ilab<10;ilab++) milab[ilab]=-2;
1023 for (Int_t ilab=0;ilab<3;ilab++){
1024 milab[ilab] = pos[ip].GetLabel(ilab);
1025 milab[ilab+3] = neg[in].GetLabel(ilab);
1028 CheckLabels2(milab);
1029 ratio = (pos[ip].GetQ()-neg[in].GetQ())/(pos[ip].GetQ()+neg[in].GetQ());
1030 milab[3]=(((ip<<10) + in)<<10) + idet; // pos|neg|det
1031 Int_t info[3] = {pos[ip].GetNd(),neg[in].GetNd(),fNlayer[fModule]};
1033 lp[2]=0.0022*0.0022; //SigmaY2
1034 lp[3]=0.110*0.110; //SigmaZ2
1035 // out-of-diagonal element of covariance matrix
1036 if( (info[0]==1) && (info[1]==1) ) lp[5]=-0.00012;
1037 else if ( (info[0]>1) && (info[1]>1) ) {
1038 lp[2]=0.0016*0.0016; //SigmaY2
1039 lp[3]=0.08*0.08; //SigmaZ2
1044 if (info[0]==1) { lp[5]=-0.00014;}
1045 else { lp[2]=0.0017*0.0017; lp[5]=-0.00004;}
1048 AliITSRecPoint * cl2;
1051 cl2 = new (cl[ncl]) AliITSRecPoint(milab,lp,info);
1052 cl2->SetChargeRatio(ratio);
1054 fgPairs[ip*nn+in] = 5;
1055 if ((pos[ip].GetNd()+neg[in].GetNd())>6){ //multi cluster
1057 fgPairs[ip*nn+in] = 6;
1061 cl2 = new AliITSRecPoint(milab,lp,info);
1062 cl2->SetChargeRatio(ratio);
1064 fgPairs[ip*nn+in] = 5;
1065 if ((pos[ip].GetNd()+neg[in].GetNd())>6){ //multi cluster
1067 fgPairs[ip*nn+in] = 6;
1070 fDetTypeRec->AddRecPoint(*cl2);
1079 // if (!(cused1[ip2] || cused2[in])){ //
1080 if ( (fgPairs[ip2*nn+in]==100) && (pos[ip2].GetQ()) ) {
1082 Float_t yp=pos[ip2].GetY();
1083 Float_t yn=neg[in].GetY();
1086 seg->GetPadCxz(yn, yp, xt, zt);
1090 qbest =pos[ip2].GetQ();
1092 Double_t loc[3]={xbest,0.,zbest},trk[3]={0.,0.,0.};
1093 mT2L->MasterToLocal(loc,trk);
1098 for (Int_t ilab=0;ilab<10;ilab++) milab[ilab]=-2;
1099 for (Int_t ilab=0;ilab<3;ilab++){
1100 milab[ilab] = pos[ip2].GetLabel(ilab);
1101 milab[ilab+3] = neg[in].GetLabel(ilab);
1104 CheckLabels2(milab);
1105 ratio = (pos[ip2].GetQ()-neg[in].GetQ())/(pos[ip2].GetQ()+neg[in].GetQ());
1106 milab[3]=(((ip2<<10) + in)<<10) + idet; // pos|neg|det
1107 Int_t info[3] = {pos[ip2].GetNd(),neg[in].GetNd(),fNlayer[fModule]};
1109 lp[2]=0.0022*0.0022; //SigmaY2
1110 lp[3]=0.110*0.110; //SigmaZ2
1111 // out-of-diagonal element of covariance matrix
1112 if( (info[0]==1) && (info[1]==1) ) lp[5]=-0.00012;
1113 else if ( (info[0]>1) && (info[1]>1) ) {
1114 lp[2]=0.0016*0.0016; //SigmaY2
1115 lp[3]=0.08*0.08; //SigmaZ2
1120 if (info[0]==1) { lp[5]=-0.00014;}
1121 else { lp[2]=0.0017*0.0017; lp[5]=-0.00004;}
1124 AliITSRecPoint * cl2;
1126 cl2 = new (cl[ncl]) AliITSRecPoint(milab,lp,info);
1128 cl2->SetChargeRatio(ratio);
1130 fgPairs[ip2*nn+in] =5;
1131 if ((pos[ip2].GetNd()+neg[in].GetNd())>6){ //multi cluster
1133 fgPairs[ip2*nn+in] =6;
1137 cl2 = new AliITSRecPoint(milab,lp,info);
1138 cl2->SetChargeRatio(ratio);
1140 fgPairs[ip2*nn+in] =5;
1141 if ((pos[ip2].GetNd()+neg[in].GetNd())>6){ //multi cluster
1143 fgPairs[ip2*nn+in] =6;
1146 fDetTypeRec->AddRecPoint(*cl2);
1155 } // charge matching condition
1157 } // 2 Pside cross 1 Nside
1158 } // loop over Pside clusters
1163 for (Int_t jn=0;jn<nn;jn++){
1164 if (cused2[jn]) continue;
1165 Float_t xbest=1000,zbest=1000,qbest=0;
1166 // select "silber" cluster
1167 if ( cpositive[jn]==1 && cnegative[positivepair[10*jn]]==2){
1168 Int_t ip = positivepair[10*jn];
1169 Int_t jn2 = negativepair[10*ip];
1170 if (jn2==jn) jn2 = negativepair[10*ip+1];
1171 Float_t pcharge = neg[jn].GetQ()+neg[jn2].GetQ();
1175 ratio = (pcharge-pos[ip].GetQ())/(pcharge+pos[ip].GetQ());
1176 if ( (TMath::Abs(ratio)<0.2) && (pcharge!=0) ) {
1179 if ( (TMath::Abs(pcharge-pos[ip].GetQ())<30) && // charge matching
1180 (pcharge!=0) ) { // reject combinations of bad strips
1186 // if (!(cused1[ip]||cused2[jn])){
1187 if ( (fgPairs[ip*nn+jn]==100) && (neg[jn].GetQ()) ) { //
1189 Float_t yn=neg[jn].GetY();
1190 Float_t yp=pos[ip].GetY();
1193 seg->GetPadCxz(yn, yp, xt, zt);
1197 qbest =neg[jn].GetQ();
1200 Double_t loc[3]={xbest,0.,zbest},trk[3]={0.,0.,0.};
1201 mT2L->MasterToLocal(loc,trk);
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[ip].GetLabel(ilab);
1210 milab[ilab+3] = neg[jn].GetLabel(ilab);
1213 CheckLabels2(milab);
1214 ratio = (pos[ip].GetQ()-neg[jn].GetQ())/(pos[ip].GetQ()+neg[jn].GetQ());
1215 milab[3]=(((ip<<10) + jn)<<10) + idet; // pos|neg|det
1216 Int_t info[3] = {pos[ip].GetNd(),neg[jn].GetNd(),fNlayer[fModule]};
1218 lp[2]=0.0022*0.0022; //SigmaY2
1219 lp[3]=0.110*0.110; //SigmaZ2
1220 // out-of-diagonal element of covariance matrix
1221 if( (info[0]==1) && (info[1]==1) ) lp[5]=-0.00012;
1222 else if ( (info[0]>1) && (info[1]>1) ) {
1223 lp[2]=0.0016*0.0016; //SigmaY2
1224 lp[3]=0.08*0.08; //SigmaZ2
1229 if (info[0]==1) { lp[5]=-0.00014;}
1230 else { lp[2]=0.0017*0.0017; lp[5]=-0.00004;}
1233 AliITSRecPoint * cl2;
1235 cl2 = new (cl[ncl]) AliITSRecPoint(milab,lp,info);
1237 cl2->SetChargeRatio(ratio);
1239 fgPairs[ip*nn+jn] =7;
1240 if ((pos[ip].GetNd()+neg[jn].GetNd())>6){ //multi cluster
1242 fgPairs[ip*nn+jn]=8;
1247 cl2 = new AliITSRecPoint(milab,lp,info);
1248 cl2->SetChargeRatio(ratio);
1250 fgPairs[ip*nn+jn] =7;
1251 if ((pos[ip].GetNd()+neg[jn].GetNd())>6){ //multi cluster
1253 fgPairs[ip*nn+jn]=8;
1256 fDetTypeRec->AddRecPoint(*cl2);
1262 // if (!(cused1[ip]||cused2[jn2])){
1263 if ( (fgPairs[ip*nn+jn2]==100)&&(neg[jn2].GetQ() ) ) { //
1265 Float_t yn=neg[jn2].GetY();
1266 Double_t yp=pos[ip].GetY();
1269 seg->GetPadCxz(yn, yp, xt, zt);
1273 qbest =neg[jn2].GetQ();
1276 Double_t loc[3]={xbest,0.,zbest},trk[3]={0.,0.,0.};
1277 mT2L->MasterToLocal(loc,trk);
1283 for (Int_t ilab=0;ilab<10;ilab++) milab[ilab]=-2;
1284 for (Int_t ilab=0;ilab<3;ilab++){
1285 milab[ilab] = pos[ip].GetLabel(ilab);
1286 milab[ilab+3] = neg[jn2].GetLabel(ilab);
1289 CheckLabels2(milab);
1290 ratio = (pos[ip].GetQ()-neg[jn2].GetQ())/(pos[ip].GetQ()+neg[jn2].GetQ());
1291 milab[3]=(((ip<<10) + jn2)<<10) + idet; // pos|neg|det
1292 Int_t info[3] = {pos[ip].GetNd(),neg[jn2].GetNd(),fNlayer[fModule]};
1294 lp[2]=0.0022*0.0022; //SigmaY2
1295 lp[3]=0.110*0.110; //SigmaZ2
1296 // out-of-diagonal element of covariance matrix
1297 if( (info[0]==1) && (info[1]==1) ) lp[5]=-0.00012;
1298 else if ( (info[0]>1) && (info[1]>1) ) {
1299 lp[2]=0.0016*0.0016; //SigmaY2
1300 lp[3]=0.08*0.08; //SigmaZ2
1305 if (info[0]==1) { lp[5]=-0.00014;}
1306 else { lp[2]=0.0017*0.0017; lp[5]=-0.00004;}
1309 AliITSRecPoint * cl2;
1311 cl2 = new (cl[ncl]) AliITSRecPoint(milab,lp,info);
1314 cl2->SetChargeRatio(ratio);
1315 fgPairs[ip*nn+jn2]=7;
1317 if ((pos[ip].GetNd()+neg[jn2].GetNd())>6){ //multi cluster
1319 fgPairs[ip*nn+jn2]=8;
1324 cl2 = new AliITSRecPoint(milab,lp,info);
1325 cl2->SetChargeRatio(ratio);
1326 fgPairs[ip*nn+jn2]=7;
1328 if ((pos[ip].GetNd()+neg[jn2].GetNd())>6){ //multi cluster
1330 fgPairs[ip*nn+jn2]=8;
1333 fDetTypeRec->AddRecPoint(*cl2);
1342 } // charge matching condition
1344 } // 2 Nside cross 1 Pside
1345 } // loop over Pside clusters
1349 for (Int_t ip=0;ip<np;ip++){
1351 if(cused1[ip]) continue;
1354 Float_t xbest=1000,zbest=1000,qbest=0;
1358 if ( (cnegative[ip]==2) && cpositive[negativepair[10*ip]]==2){
1359 Float_t minchargediff =4.;
1360 Float_t minchargeratio =0.2;
1363 for (Int_t di=0;di<cnegative[ip];di++){
1364 Int_t jc = negativepair[ip*10+di];
1365 Float_t chargedif = pos[ip].GetQ()-neg[jc].GetQ();
1366 ratio = (pos[ip].GetQ()-neg[jc].GetQ())/(pos[ip].GetQ()+neg[jc].GetQ());
1367 //if (TMath::Abs(chargedif)<minchargediff){
1368 if (TMath::Abs(ratio)<0.2){
1370 minchargediff = TMath::Abs(chargedif);
1371 minchargeratio = TMath::Abs(ratio);
1374 if (j<0) continue; // not proper cluster
1378 for (Int_t di=0;di<cnegative[ip];di++){
1379 Int_t jc = negativepair[ip*10+di];
1380 Float_t chargedif = pos[ip].GetQ()-neg[jc].GetQ();
1381 if (TMath::Abs(chargedif)<minchargediff+3.) count++;
1383 if (count>1) continue; // more than one "proper" cluster for positive
1387 for (Int_t dj=0;dj<cpositive[j];dj++){
1388 Int_t ic = positivepair[j*10+dj];
1389 Float_t chargedif = pos[ic].GetQ()-neg[j].GetQ();
1390 if (TMath::Abs(chargedif)<minchargediff+3.) count++;
1392 if (count>1) continue; // more than one "proper" cluster for negative
1397 for (Int_t dj=0;dj<cnegative[jp];dj++){
1398 Int_t ic = positivepair[jp*10+dj];
1399 Float_t chargedif = pos[ic].GetQ()-neg[jp].GetQ();
1400 if (TMath::Abs(chargedif)<minchargediff+4.) count++;
1402 if (count>1) continue;
1403 if (fgPairs[ip*nn+j]<100) continue;
1408 //almost gold clusters
1409 Float_t yp=pos[ip].GetY();
1410 Float_t yn=neg[j].GetY();
1412 seg->GetPadCxz(yn, yp, xt, zt);
1414 qbest=0.5*(pos[ip].GetQ()+neg[j].GetQ());
1416 Double_t loc[3]={xbest,0.,zbest},trk[3]={0.,0.,0.};
1417 mT2L->MasterToLocal(loc,trk);
1422 for (Int_t ilab=0;ilab<10;ilab++) milab[ilab]=-2;
1423 for (Int_t ilab=0;ilab<3;ilab++){
1424 milab[ilab] = pos[ip].GetLabel(ilab);
1425 milab[ilab+3] = neg[j].GetLabel(ilab);
1428 CheckLabels2(milab);
1429 if ((neg[j].GetQ()==0)&&(pos[ip].GetQ()==0)) continue; // reject crosses of bad strips!!
1430 ratio = (pos[ip].GetQ()-neg[j].GetQ())/(pos[ip].GetQ()+neg[j].GetQ());
1431 milab[3]=(((ip<<10) + j)<<10) + idet; // pos|neg|det
1432 Int_t info[3] = {pos[ip].GetNd(),neg[j].GetNd(),fNlayer[fModule]};
1434 lp[2]=0.0022*0.0022; //SigmaY2
1435 lp[3]=0.110*0.110; //SigmaZ2
1436 // out-of-diagonal element of covariance matrix
1437 if( (info[0]==1) && (info[1]==1) ) lp[5]=-0.00012;
1438 else if ( (info[0]>1) && (info[1]>1) ) {
1439 lp[2]=0.0016*0.0016; //SigmaY2
1440 lp[3]=0.08*0.08; //SigmaZ2
1445 if (info[0]==1) { lp[5]=-0.00014;}
1446 else { lp[2]=0.0017*0.0017; lp[5]=-0.00004;}
1449 AliITSRecPoint * cl2;
1451 cl2 = new (cl[ncl]) AliITSRecPoint(milab,lp,info);
1453 cl2->SetChargeRatio(ratio);
1455 fgPairs[ip*nn+j]=10;
1456 if ((pos[ip].GetNd()+neg[j].GetNd())>6){ //multi cluster
1458 fgPairs[ip*nn+j]=11;
1464 cl2 = new AliITSRecPoint(milab,lp,info);
1465 cl2->SetChargeRatio(ratio);
1467 fgPairs[ip*nn+j]=10;
1468 if ((pos[ip].GetNd()+neg[j].GetNd())>6){ //multi cluster
1470 fgPairs[ip*nn+j]=11;
1475 fDetTypeRec->AddRecPoint(*cl2);
1480 } // loop over Pside 1Dclusters
1484 for (Int_t ip=0;ip<np;ip++){
1486 if(cused1[ip]) continue;
1489 Float_t xbest=1000,zbest=1000,qbest=0;
1491 // manyxmany clusters
1493 if ( (cnegative[ip]<5) && cpositive[negativepair[10*ip]]<5){
1494 Float_t minchargediff =4.;
1496 for (Int_t di=0;di<cnegative[ip];di++){
1497 Int_t jc = negativepair[ip*10+di];
1498 Float_t chargedif = pos[ip].GetQ()-neg[jc].GetQ();
1499 if (TMath::Abs(chargedif)<minchargediff){
1501 minchargediff = TMath::Abs(chargedif);
1504 if (j<0) continue; // not proper cluster
1507 for (Int_t di=0;di<cnegative[ip];di++){
1508 Int_t jc = negativepair[ip*10+di];
1509 Float_t chargedif = pos[ip].GetQ()-neg[jc].GetQ();
1510 if (TMath::Abs(chargedif)<minchargediff+3.) count++;
1512 if (count>1) continue; // more than one "proper" cluster for positive
1516 for (Int_t dj=0;dj<cpositive[j];dj++){
1517 Int_t ic = positivepair[j*10+dj];
1518 Float_t chargedif = pos[ic].GetQ()-neg[j].GetQ();
1519 if (TMath::Abs(chargedif)<minchargediff+3.) count++;
1521 if (count>1) continue; // more than one "proper" cluster for negative
1526 for (Int_t dj=0;dj<cnegative[jp];dj++){
1527 Int_t ic = positivepair[jp*10+dj];
1528 Float_t chargedif = pos[ic].GetQ()-neg[jp].GetQ();
1529 if (TMath::Abs(chargedif)<minchargediff+4.) count++;
1531 if (count>1) continue;
1532 if (fgPairs[ip*nn+j]<100) continue;
1535 //almost gold clusters
1536 Float_t yp=pos[ip].GetY();
1537 Float_t yn=neg[j].GetY();
1541 seg->GetPadCxz(yn, yp, xt, zt);
1545 qbest=0.5*(pos[ip].GetQ()+neg[j].GetQ());
1548 Double_t loc[3]={xbest,0.,zbest},trk[3]={0.,0.,0.};
1549 mT2L->MasterToLocal(loc,trk);
1554 for (Int_t ilab=0;ilab<10;ilab++) milab[ilab]=-2;
1555 for (Int_t ilab=0;ilab<3;ilab++){
1556 milab[ilab] = pos[ip].GetLabel(ilab);
1557 milab[ilab+3] = neg[j].GetLabel(ilab);
1560 CheckLabels2(milab);
1561 if ((neg[j].GetQ()==0)&&(pos[ip].GetQ()==0)) continue; // reject crosses of bad strips!!
1562 ratio = (pos[ip].GetQ()-neg[j].GetQ())/(pos[ip].GetQ()+neg[j].GetQ());
1563 milab[3]=(((ip<<10) + j)<<10) + idet; // pos|neg|det
1564 Int_t info[3] = {pos[ip].GetNd(),neg[j].GetNd(),fNlayer[fModule]};
1566 lp[2]=0.0022*0.0022; //SigmaY2
1567 lp[3]=0.110*0.110; //SigmaZ2
1568 // out-of-diagonal element of covariance matrix
1569 if( (info[0]==1) && (info[1]==1) ) lp[5]=-0.00012;
1570 else if ( (info[0]>1) && (info[1]>1) ) {
1571 lp[2]=0.0016*0.0016; //SigmaY2
1572 lp[3]=0.08*0.08; //SigmaZ2
1577 if (info[0]==1) { lp[5]=-0.00014;}
1578 else { lp[2]=0.0017*0.0017; lp[5]=-0.00004;}
1581 AliITSRecPoint * cl2;
1583 cl2 = new (cl[ncl]) AliITSRecPoint(milab,lp,info);
1585 cl2->SetChargeRatio(ratio);
1587 fgPairs[ip*nn+j]=12;
1588 if ((pos[ip].GetNd()+neg[j].GetNd())>6){ //multi cluster
1590 fgPairs[ip*nn+j]=13;
1596 cl2 = new AliITSRecPoint(milab,lp,info);
1597 cl2->SetChargeRatio(ratio);
1599 fgPairs[ip*nn+j]=12;
1600 if ((pos[ip].GetNd()+neg[j].GetNd())>6){ //multi cluster
1602 fgPairs[ip*nn+j]=13;
1607 fDetTypeRec->AddRecPoint(*cl2);
1612 } // loop over Pside 1Dclusters
1614 } // use charge matching
1617 // recover all the other crosses
1619 for (Int_t i=0; i<np; i++) {
1620 Float_t xbest=1000,zbest=1000,qbest=0;
1621 Float_t yp=pos[i].GetY();
1622 if ((pos[i].GetQ()>0)&&(pos[i].GetQ()<3)) continue;
1623 for (Int_t j=0; j<nn; j++) {
1624 // for (Int_t di = 0;di<cpositive[i];di++){
1625 // Int_t j = negativepair[10*i+di];
1626 if ((neg[j].GetQ()>0)&&(neg[j].GetQ()<3)) continue;
1628 if ((neg[j].GetQ()==0)&&(pos[i].GetQ()==0)) continue; // reject crosses of bad strips!!
1630 if (cused2[j]||cused1[i]) continue;
1631 if (fgPairs[i*nn+j]>0 &&fgPairs[i*nn+j]<100) continue;
1632 ratio = (pos[i].GetQ()-neg[j].GetQ())/(pos[i].GetQ()+neg[j].GetQ());
1633 Float_t yn=neg[j].GetY();
1636 seg->GetPadCxz(yn, yp, xt, zt);
1638 if (TMath::Abs(xt)<hwSSD)
1639 if (TMath::Abs(zt)<hlSSD) {
1642 qbest=0.5*(pos[i].GetQ()+neg[j].GetQ());
1645 Double_t loc[3]={xbest,0.,zbest},trk[3]={0.,0.,0.};
1646 mT2L->MasterToLocal(loc,trk);
1651 for (Int_t ilab=0;ilab<10;ilab++) milab[ilab]=-2;
1652 for (Int_t ilab=0;ilab<3;ilab++){
1653 milab[ilab] = pos[i].GetLabel(ilab);
1654 milab[ilab+3] = neg[j].GetLabel(ilab);
1657 CheckLabels2(milab);
1658 milab[3]=(((i<<10) + j)<<10) + idet; // pos|neg|det
1659 Int_t info[3] = {pos[i].GetNd(),neg[j].GetNd(),fNlayer[fModule]};
1661 lp[2]=0.0022*0.0022; //SigmaY2
1662 lp[3]=0.110*0.110; //SigmaZ2
1663 // out-of-diagonal element of covariance matrix
1664 if( (info[0]==1) && (info[1]==1) ) lp[5]=-0.00012;
1665 else if ( (info[0]>1) && (info[1]>1) ) {
1666 lp[2]=0.0016*0.0016; //SigmaY2
1667 lp[3]=0.08*0.08; //SigmaZ2
1672 if (info[0]==1) { lp[5]=-0.00014;}
1673 else { lp[2]=0.0017*0.0017; lp[5]=-0.00004;}
1676 AliITSRecPoint * cl2;
1678 cl2 = new (cl[ncl]) AliITSRecPoint(milab,lp,info);
1680 cl2->SetChargeRatio(ratio);
1681 cl2->SetType(100+cpositive[j]+cnegative[i]);
1683 if(pos[i].GetQ()==0) cl2->SetType(200+cpositive[j]+cnegative[i]);
1684 if(neg[j].GetQ()==0) cl2->SetType(300+cpositive[j]+cnegative[i]);
1688 cl2 = new AliITSRecPoint(milab,lp,info);
1689 cl2->SetChargeRatio(ratio);
1690 cl2->SetType(100+cpositive[j]+cnegative[i]);
1692 if(pos[i].GetQ()==0) cl2->SetType(200+cpositive[j]+cnegative[i]);
1693 if(neg[j].GetQ()==0) cl2->SetType(300+cpositive[j]+cnegative[i]);
1695 fDetTypeRec->AddRecPoint(*cl2);
1704 if(repa->GetUseBadChannelsInClusterFinderSSD()==kTRUE) {
1706 //---------------------------------------------------------
1707 // recover crosses of good 1D clusters with bad strips on the other side
1708 // Note1: at first iteration skip modules with a bad side (or almost), (would produce too many fake!)
1709 // Note2: for modules with a bad side see below
1711 AliITSCalibrationSSD* cal = (AliITSCalibrationSSD*)GetResp(fModule);
1712 Int_t countPbad=0, countNbad=0;
1713 for(Int_t ib=0; ib<768; ib++) {
1714 if(cal->IsPChannelBad(ib)) countPbad++;
1715 if(cal->IsNChannelBad(ib)) countNbad++;
1717 // AliInfo(Form("module %d has %d P- and %d N-bad strips",fModule,countPbad,countNbad));
1719 if( (countPbad<100) && (countNbad<100) ) { // no bad side!!
1721 for (Int_t i=0; i<np; i++) { // loop over Nside 1Dclusters with no crosses
1722 if(cnegative[i]) continue; // if intersecting Pside clusters continue;
1724 // for(Int_t ib=0; ib<768; ib++) { // loop over all Pstrips
1725 for(Int_t ib=15; ib<753; ib++) { // loop over all Pstrips
1727 if(cal->IsPChannelBad(ib)) { // check if strips is bad
1728 Float_t yN=pos[i].GetY();
1730 seg->GetPadCxz(1.*ib, yN, xt, zt);
1733 // bad Pstrip is crossing the Nside 1Dcluster -> create recpoint
1735 if ( (TMath::Abs(xt)<hwSSD) && (TMath::Abs(zt)<hlSSD) ) {
1736 Double_t loc[3]={xt,0.,zt},trk[3]={0.,0.,0.};
1737 mT2L->MasterToLocal(loc,trk);
1740 lp[4]=pos[i].GetQ(); //Q
1741 for (Int_t ilab=0;ilab<10;ilab++) milab[ilab]=-2;
1742 for (Int_t ilab=0;ilab<3;ilab++) milab[ilab] = pos[i].GetLabel(ilab);
1743 CheckLabels2(milab);
1744 milab[3]=( (i<<10) << 10 ) + idet; // pos|neg|det
1745 Int_t info[3] = {pos[i].GetNd(),0,fNlayer[fModule]};
1747 // out-of-diagonal element of covariance matrix
1748 if (info[0]==1) lp[5]=0.0065;
1751 lp[2]=0.0022*0.0022; //SigmaY2
1752 lp[3]=0.110*0.110; //SigmaZ2
1753 lp[5]=-0.00012; // out-of-diagonal element of covariance matrix
1755 AliITSRecPoint * cl2;
1757 cl2 = new (cl[ncl]) AliITSRecPoint(milab,lp,info);
1758 cl2->SetChargeRatio(1.);
1762 cl2 = new AliITSRecPoint(milab,lp,info);
1763 cl2->SetChargeRatio(1.);
1765 fDetTypeRec->AddRecPoint(*cl2);
1768 } // cross is within the detector
1774 } // end loop over Pstrips
1776 } // end loop over Nside 1D clusters
1778 for (Int_t j=0; j<nn; j++) { // loop over Pside 1D clusters with no crosses
1779 if(cpositive[j]) continue;
1781 // for(Int_t ib=0; ib<768; ib++) { // loop over all Nside strips
1782 for(Int_t ib=15; ib<753; ib++) { // loop over all Nside strips
1784 if(cal->IsNChannelBad(ib)) { // check if strip is bad
1785 Float_t yP=neg[j].GetY();
1787 seg->GetPadCxz(yP, 1.*ib, xt, zt);
1790 // bad Nstrip is crossing the Pside 1Dcluster -> create recpoint
1792 if ( (TMath::Abs(xt)<hwSSD) && (TMath::Abs(zt)<hlSSD) ) {
1793 Double_t loc[3]={xt,0.,zt},trk[3]={0.,0.,0.};
1794 mT2L->MasterToLocal(loc,trk);
1797 lp[4]=neg[j].GetQ(); //Q
1798 for (Int_t ilab=0;ilab<10;ilab++) milab[ilab]=-2;
1799 for (Int_t ilab=0;ilab<3;ilab++) milab[ilab] = neg[j].GetLabel(ilab);
1800 CheckLabels2(milab);
1801 milab[3]=( j << 10 ) + idet; // pos|neg|det
1802 Int_t info[3]={0,(Int_t)neg[j].GetNd(),fNlayer[fModule]};
1804 lp[2]=0.0022*0.0022; //SigmaY2
1805 lp[3]=0.110*0.110; //SigmaZ2
1806 lp[5]=-0.00012; // out-of-diagonal element of covariance matrix
1808 AliITSRecPoint * cl2;
1810 cl2 = new (cl[ncl]) AliITSRecPoint(milab,lp,info);
1811 cl2->SetChargeRatio(1.);
1815 cl2 = new AliITSRecPoint(milab,lp,info);
1816 cl2->SetChargeRatio(1.);
1818 fDetTypeRec->AddRecPoint(*cl2);
1821 } // cross is within the detector
1826 } // end loop over Nstrips
1827 } // end loop over Pside 1D clusters
1831 //---------------------------------------------------------
1833 else if( (countPbad>700) && (countNbad<100) ) { // bad Pside!!
1835 for (Int_t i=0; i<np; i++) { // loop over Nside 1Dclusters with no crosses
1836 if(cnegative[i]) continue; // if intersecting Pside clusters continue;
1839 Float_t yN=pos[i].GetY();
1841 if (seg->GetLayer()==5) yP = yN + (7.6/1.9);
1842 else yP = yN - (7.6/1.9);
1843 seg->GetPadCxz(yP, yN, xt, zt);
1845 if ( (TMath::Abs(xt)<hwSSD) && (TMath::Abs(zt)<hlSSD) ) {
1846 Double_t loc[3]={xt,0.,zt},trk[3]={0.,0.,0.};
1847 mT2L->MasterToLocal(loc,trk);
1850 lp[4]=pos[i].GetQ(); //Q
1851 for (Int_t ilab=0;ilab<10;ilab++) milab[ilab]=-2;
1852 for (Int_t ilab=0;ilab<3;ilab++) milab[ilab] = pos[i].GetLabel(ilab);
1853 CheckLabels2(milab);
1854 milab[3]=( (i<<10) << 10 ) + idet; // pos|neg|det
1855 Int_t info[3] = {(Int_t)pos[i].GetNd(),0,fNlayer[fModule]};
1857 lp[2]=0.031*0.031; //SigmaY2
1858 lp[3]=1.15*1.15; //SigmaZ2
1861 AliITSRecPoint * cl2;
1863 cl2 = new (cl[ncl]) AliITSRecPoint(milab,lp,info);
1864 cl2->SetChargeRatio(1.);
1868 cl2 = new AliITSRecPoint(milab,lp,info);
1869 cl2->SetChargeRatio(1.);
1871 fDetTypeRec->AddRecPoint(*cl2);
1874 } // cross is within the detector
1878 } // end loop over Nside 1D clusters
1880 } // bad Pside module
1882 else if( (countNbad>700) && (countPbad<100) ) { // bad Nside!!
1884 for (Int_t j=0; j<nn; j++) { // loop over Pside 1D clusters with no crosses
1885 if(cpositive[j]) continue;
1888 Float_t yP=neg[j].GetY();
1890 if (seg->GetLayer()==5) yN = yP - (7.6/1.9);
1891 else yN = yP + (7.6/1.9);
1892 seg->GetPadCxz(yP, yN, xt, zt);
1894 if ( (TMath::Abs(xt)<hwSSD) && (TMath::Abs(zt)<hlSSD) ) {
1895 Double_t loc[3]={xt,0.,zt},trk[3]={0.,0.,0.};
1896 mT2L->MasterToLocal(loc,trk);
1899 lp[4]=neg[j].GetQ(); //Q
1900 for (Int_t ilab=0;ilab<10;ilab++) milab[ilab]=-2;
1901 for (Int_t ilab=0;ilab<3;ilab++) milab[ilab] = neg[j].GetLabel(ilab);
1902 CheckLabels2(milab);
1903 milab[3]=( j << 10 ) + idet; // pos|neg|det
1904 Int_t info[3] = {0,(Int_t)neg[j].GetNd(),fNlayer[fModule]};
1906 lp[2]=0.0085*0.0085; //SigmaY2
1907 lp[3]=1.15*1.15; //SigmaZ2
1910 AliITSRecPoint * cl2;
1912 cl2 = new (cl[ncl]) AliITSRecPoint(milab,lp,info);
1913 cl2->SetChargeRatio(1.);
1917 cl2 = new AliITSRecPoint(milab,lp,info);
1918 cl2->SetChargeRatio(1.);
1920 fDetTypeRec->AddRecPoint(*cl2);
1923 } // cross is within the detector
1927 } // end loop over Pside 1D clusters
1929 } // bad Nside module
1931 //---------------------------------------------------------
1933 } // use bad channels
1935 //cout<<ncl<<" clusters for this module"<<endl;
1937 delete [] cnegative;
1939 delete [] negativepair;
1940 delete [] cpositive;
1942 delete [] positivepair;