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 "AliITSRecPointContainer.h"
33 #include "AliITSgeomTGeo.h"
34 #include "AliITSDetTypeRec.h"
35 #include "AliRawReader.h"
36 #include "AliITSRawStreamSSD.h"
37 #include <TClonesArray.h>
38 #include <TCollection.h>
39 #include "AliITSdigitSSD.h"
40 #include "AliITSReconstructor.h"
41 #include "AliITSCalibrationSSD.h"
42 #include "AliITSsegmentationSSD.h"
44 Short_t *AliITSClusterFinderV2SSD::fgPairs = 0x0;
45 Int_t AliITSClusterFinderV2SSD::fgPairsSize = 0;
46 const Float_t AliITSClusterFinderV2SSD::fgkThreshold = 5.;
48 const Float_t AliITSClusterFinderV2SSD::fgkCosmic2008StripShifts[16][9] =
49 {{-0.35,-0.35,-0.35,-0.35,-0.35,-0.35,-0.35,-0.35,-0.35}, // DDL 512
50 {-0.35,-0.35,-0.35,-0.35,-0.35,-0.35,-0.35,-0.35,-0.35}, // DDL 513
51 {-0.15,-0.15,-0.15,-0.15,-0.15,-0.15,-0.15,-0.15,-0.15}, // DDL 514
52 {-0.15,-0.15,-0.15,-0.15,-0.15,-0.15,-0.15,-0.15,-0.15}, // DDL 515
53 { 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00}, // DDL 516
54 { 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00}, // DDL 517
55 {-0.15,-0.15,-0.15,-0.15,-0.15,-0.15,-0.15,-0.15,-0.15}, // DDL 518
56 {-0.15,-0.15,-0.15,-0.15,-0.15,-0.15,-0.15,-0.15,-0.15}, // DDL 519
57 {-0.15,-0.15,-0.15,-0.15,-0.15,-0.15,-0.15,-0.25,-0.15}, // DDL 520
58 {-0.15,-0.15,-0.15,-0.15,-0.15,-0.15,-0.15,-0.15,-0.15}, // DDL 521
59 {-0.10,-0.10,-0.10,-0.40,-0.40,-0.40,-0.10,-0.10,-0.45}, // DDL 522
60 {-0.10,-0.10,-0.10,-0.35,-0.35,-0.35,-0.10,-0.35,-0.50}, // DDL 523
61 { 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00}, // DDL 524
62 { 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00}, // DDL 525
63 { 0.35, 0.35, 0.35, 0.35, 0.35, 0.35, 0.35, 0.35, 0.35}, // DDL 526
64 { 0.45, 0.45, 0.45, 0.45, 0.45, 0.45, 0.45, 0.45, 0.45}}; // DDL 527
66 ClassImp(AliITSClusterFinderV2SSD)
69 AliITSClusterFinderV2SSD::AliITSClusterFinderV2SSD(AliITSDetTypeRec* dettyp):AliITSClusterFinder(dettyp),
70 fLastSSD1(AliITSgeomTGeo::GetModuleIndex(6,1,1)-1)
76 //______________________________________________________________________
77 AliITSClusterFinderV2SSD::AliITSClusterFinderV2SSD(const AliITSClusterFinderV2SSD &cf) : AliITSClusterFinder(cf), fLastSSD1(cf.fLastSSD1)
82 //______________________________________________________________________
83 AliITSClusterFinderV2SSD& AliITSClusterFinderV2SSD::operator=(const AliITSClusterFinderV2SSD& cf ){
84 // Assignment operator
86 this->~AliITSClusterFinderV2SSD();
87 new(this) AliITSClusterFinderV2SSD(cf);
92 void AliITSClusterFinderV2SSD::FindRawClusters(Int_t mod){
96 FindClustersSSD(fDigits);
100 void AliITSClusterFinderV2SSD::FindClustersSSD(TClonesArray *alldigits) {
101 //------------------------------------------------------------
102 // Actual SSD cluster finder
103 //------------------------------------------------------------
104 Int_t smaxall=alldigits->GetEntriesFast();
105 if (smaxall==0) return;
108 //---------------------------------------
109 // load recoparam and calibration
111 static AliITSRecoParam *repa = NULL;
113 repa = (AliITSRecoParam*) AliITSReconstructor::GetRecoParam();
115 repa = AliITSRecoParam::GetHighFluxParam();
116 AliWarning("Using default AliITSRecoParam class");
120 AliITSCalibrationSSD* cal = (AliITSCalibrationSSD*)GetResp(fModule);
123 //---------------------------------------
126 //------------------------------------
127 // fill the digits array with zero-suppression condition
128 // Signal is converted in KeV
131 for (Int_t i=0;i<smaxall; i++){
132 AliITSdigitSSD *d=(AliITSdigitSSD*)alldigits->UncheckedAt(i);
134 if(d->IsSideP()) noise = cal->GetNoiseP(d->GetStripNumber());
135 else noise = cal->GetNoiseN(d->GetStripNumber());
136 if (d->GetSignal()<3.*noise) continue;
138 if(d->IsSideP()) gain = cal->GetGainP(d->GetStripNumber());
139 else gain = cal->GetGainN(d->GetStripNumber());
141 Float_t q=gain*d->GetSignal(); //
142 q=cal->ADCToKeV(q); // converts the charge in KeV from ADC units
143 d->SetSignal(Int_t(q));
147 Int_t smax = digits.GetEntriesFast();
149 //------------------------------------
152 const Int_t kMax=1000;
154 Ali1Dcluster pos[kMax], neg[kMax];
155 Float_t y=0., q=0., qmax=0.;
156 Int_t lab[4]={-2,-2,-2,-2};
160 cout<<"-----------------------------"<<endl;
161 cout<<"this is module "<<fModule;
166 //--------------------------------------------------------
167 // start 1D-clustering from the first digit in the digits array
169 AliITSdigitSSD *d=(AliITSdigitSSD*)digits.UncheckedAt(0);
171 y += d->GetCoord2()*d->GetSignal();
173 lab[0]=d->GetTrack(0); lab[1]=d->GetTrack(1); lab[2]=d->GetTrack(2);
176 noise = cal->GetNoiseP(d->GetStripNumber());
177 gain = cal->GetGainP(d->GetStripNumber());
180 noise = cal->GetNoiseN(d->GetStripNumber());
181 gain = cal->GetGainN(d->GetStripNumber());
184 noise=cal->ADCToKeV(noise); // converts noise in KeV from ADC units
186 if(qmax>fgkThreshold*noise) flag5=1; // seed for the cluster
189 cout<<d->GetSignal()<<" "<<noise<<" "<<flag5<<" "<<
190 d->GetCoord1()<<" "<<d->GetCoord2()<<endl;
193 Int_t curr=d->GetCoord2();
194 Int_t flag=d->GetCoord1();
196 // Note: the first side which will be processed is supposed to be the
197 // P-side which is neg
200 if(flag) {n=&np; c=pos;} // in case we have only Nstrips (P was bad!)
204 for (Int_t ilab=0;ilab<10;ilab++){
207 milab[0]=d->GetTrack(0); milab[1]=d->GetTrack(1); milab[2]=d->GetTrack(2);
210 //----------------------------------------------------------
211 // search for neighboring digits
213 for (Int_t s=1; s<smax; s++) {
214 d=(AliITSdigitSSD*)digits.UncheckedAt(s);
215 Int_t strip=d->GetCoord2();
217 // if digits is not a neighbour or side did not change
218 // and at least one of the previous digits met the seed condition
219 // then creates a new 1D cluster
220 if ( ( ((strip-curr) > 1) || (flag!=d->GetCoord1()) ) ) {
223 //cout<<"here1"<<endl;
228 c[*n].SetLabels(milab);
230 if(repa->GetUseUnfoldingInClusterFinderSSD()==kTRUE) {
231 // Note: fUseUnfoldingInClusterFinderSSD=kFALSE by default in RecoParam
233 //Split suspiciously big cluster
235 c[*n].SetY(y/q-0.25*nd);
239 Error("FindClustersSSD","Too many 1D clusters !");
242 c[*n].SetY(y/q+0.25*nd);
245 c[*n].SetLabels(milab);
252 Error("FindClustersSSD","Too many 1D clusters !");
262 lab[0]=lab[1]=lab[2]=-2;
263 for (Int_t ilab=0;ilab<10;ilab++) milab[ilab]=-2;
265 // if side changed from P to N, switch to pos 1D clusters
266 // (if for some reason the side changed from N to P then do the opposite)
267 if (flag!=d->GetCoord1())
268 { if(!flag) {n=&np; c=pos;} else {n=&nn; c=neg;} }
270 } // end create new 1D cluster from previous neighboring digits
272 // continues adding digits to the previous cluster
273 // or start a new one
276 y += d->GetCoord2()*d->GetSignal();
280 noise = cal->GetNoiseP(d->GetStripNumber());
281 gain = cal->GetGainP(d->GetStripNumber());
284 noise = cal->GetNoiseN(d->GetStripNumber());
285 gain = cal->GetGainN(d->GetStripNumber());
288 noise=cal->ADCToKeV(noise); // converts the charge in KeV from ADC units
290 if(d->GetSignal()>fgkThreshold*noise) flag5=1;
293 cout<<d->GetSignal()<<" "<<noise<<" "<<flag5<<" "<<
294 d->GetCoord1()<<" "<<d->GetCoord2()<<endl;
297 if (d->GetSignal()>qmax) {
299 lab[0]=d->GetTrack(0); lab[1]=d->GetTrack(1); lab[2]=d->GetTrack(2);
301 for (Int_t ilab=0;ilab<10;ilab++) {
302 if (d->GetTrack(ilab)>=0) AddLabel(milab, (d->GetTrack(ilab)));
307 } // loop over digits, no more digits in the digits array
310 // add the last 1D cluster
313 // cout<<"here2"<<endl;
318 c[*n].SetLabels(lab);
320 if(repa->GetUseUnfoldingInClusterFinderSSD()==kTRUE) {
322 //Split suspiciously big cluster
324 c[*n].SetY(y/q-0.25*nd);
328 Error("FindClustersSSD","Too many 1D clusters !");
331 c[*n].SetY(y/q+0.25*nd);
334 c[*n].SetLabels(lab);
340 Error("FindClustersSSD","Too many 1D clusters !");
344 } // if flag5 last 1D cluster added
347 //------------------------------------------------------
348 // call FindClustersSSD to pair neg and pos 1D clusters
349 // and create recpoints from the crosses
350 // Note1: neg are Pside and pos are Nside!!
351 // Note2: if there are no Pside digits nn=0 (bad strips!!) (same for Nside)
353 // cout<<nn<<" Pside and "<<np<<" Nside clusters"<<endl;
355 AliITSRecPointContainer* rpc = AliITSRecPointContainer::Instance();
357 TClonesArray* clusters = rpc->UncheckedGetClusters(fModule);
359 FindClustersSSD(neg, nn, pos, np, clusters);
362 while ((irp = (AliITSRecPoint*)itr.Next())) fDetTypeRec->AddRecPoint(*irp);
364 //-----------------------------------------------------
368 void AliITSClusterFinderV2SSD::RawdataToClusters(AliRawReader* rawReader){
370 //------------------------------------------------------------
371 // This function creates ITS clusters from raw data
372 //------------------------------------------------------------
374 AliITSRawStreamSSD inputSSD(rawReader);
375 FindClustersSSD(&inputSSD);
380 void AliITSClusterFinderV2SSD::FindClustersSSD(AliITSRawStreamSSD* input)
382 //------------------------------------------------------------
383 // Actual SSD cluster finder for raw data
384 //------------------------------------------------------------
386 AliITSRecPointContainer* rpc = AliITSRecPointContainer::Instance();
387 static AliITSRecoParam *repa = NULL;
389 repa = (AliITSRecoParam*) AliITSReconstructor::GetRecoParam();
391 repa = AliITSRecoParam::GetHighFluxParam();
392 AliWarning("Using default AliITSRecoParam class");
395 Int_t nClustersSSD = 0;
396 const Int_t kNADC = 12;
397 const Int_t kMaxADCClusters = 1000;
399 Int_t strips[kNADC][2][kMaxADCClusters][2]; // [ADC],[side],[istrip], [0]=istrip [1]=signal
400 Int_t nStrips[kNADC][2];
402 for( int i=0; i<kNADC; i++ ){
411 //* Loop over modules DDL+AD
416 bool next = input->Next();
419 //* Continue if corrupted input
422 if( (!next)&&(input->flag) ){
423 AliWarning(Form("ITSClustersFinderSSD: Corrupted data: warning from RawReader"));
427 Int_t newDDL = input->GetDDL();
428 Int_t newAD = input->GetAD();
431 if( newDDL<0 || newDDL>15 ){
432 AliWarning(Form("ITSClustersFinderSSD: Corrupted data: wrong DDL number (%d)",newDDL));
436 if( newAD<1 || newAD>9 ){
437 AliWarning(Form("ITSClustersFinderSSD: Corrupted data: wrong AD number (%d)",newAD));
442 bool newModule = ( !next || ddl!= newDDL || ad!=newAD );
444 if( newModule && ddl>=0 && ad>=0 ){
447 //* Reconstruct the previous block of 12 modules --- actual clusterfinder
450 for( int adc = 0; adc<kNADC; adc++ ){
454 Ali1Dcluster clusters1D[2][kMaxADCClusters]; // per ADC, per side
455 Int_t nClusters1D[2] = {0,0};
456 //int nstat[2] = {0,0};
457 fModule = AliITSRawStreamSSD::GetModuleNumber(ddl, (ad - 1) * 12 + adc );
460 // AliWarning(Form("ITSClustersFinderSSD: Corrupted data: module (ddl %d ad %d adc %d) not found in the map",ddl,ad,adc));
461 //CM channels are always present even everything is suppressed
465 AliITSCalibrationSSD* cal = (AliITSCalibrationSSD*)fDetTypeRec->GetCalibrationModel(fModule);
467 AliWarning(Form("ITSClustersFinderSSD: No calibration found for module (ddl %d ad %d adc %d)",ddl,ad,adc));
473 if( repa->GetUseCosmicRunShiftsSSD()) { // Special condition for 2007/2008 cosmic data
474 dStrip = fgkCosmic2008StripShifts[ddl][ad-1];
475 if (TMath::Abs(dStrip) > 1.5){
476 AliWarning(Form("Indexing error in Cosmic calibration: ddl = %d, dStrip %f\n",ddl,dStrip));
481 for( int side=0; side<=1; side++ ){
483 Int_t lab[3]={-2,-2,-2};
490 Int_t n = nStrips[adc][side];
491 for( int istr = 0; istr<n+1; istr++ ){
495 Float_t signal=0.0, noise=0.0, gain=0.0;
498 strip = strips[adc][side][istr][0];
499 signal = strips[adc][side][istr][1];
501 //cout<<"strip "<<adc<<" / "<<side<<": "<<strip<<endl;
504 noise = side ?cal->GetNoiseN(strip) :cal->GetNoiseP(strip);
505 gain = side ?cal->GetGainN(strip) :cal->GetGainP(strip);
506 stripOK = ( noise>=1. && signal>=3.0*noise
507 //&& !cal->IsPChannelBad(strip)
510 } else stripOK = 0; // end of data
512 bool newCluster = ( (abs(strip-ostrip)!=1) || !stripOK );
516 //* Store the previous cluster
518 if( nDigits>0 && q>0 && snFlag ){
520 if (nClusters1D[side] >= kMaxADCClusters-1 ) {
521 AliWarning("HLT ClustersFinderSSD: Too many 1D clusters !");
524 Ali1Dcluster &cluster = clusters1D[side][nClusters1D[side]++];
525 cluster.SetY( y / q + dStrip);
527 cluster.SetNd(nDigits);
528 cluster.SetLabels(lab);
529 //cout<<"cluster 1D side "<<side<<": y= "<<y<<" q= "<<q<<" d="<<dStrip<<" Y="<<cluster.GetY()<<endl;
530 //Split suspiciously big cluster
532 if( repa->GetUseUnfoldingInClusterFinderSSD()
533 && nDigits > 4 && nDigits < 25
535 cluster.SetY(y/q + dStrip - 0.25*nDigits);
537 Ali1Dcluster& cluster2 = clusters1D[side][nClusters1D[side]++];
538 cluster2.SetY(y/q + dStrip + 0.25*nDigits);
539 cluster2.SetQ(0.5*q);
540 cluster2.SetNd(nDigits);
541 cluster2.SetLabels(lab);
549 } //* End store the previous cluster
551 if( stripOK ){ // add new signal to the cluster
552 // signal = (Int_t) (signal * gain); // signal is corrected for gain
553 if( signal>fgkThreshold*noise) snFlag = 1;
554 signal = signal * gain; // signal is corrected for gain
555 // if( cal ) signal = (Int_t) cal->ADCToKeV( signal ); // signal is converted in KeV
556 if( cal ) signal = cal->ADCToKeV( signal ); // signal is converted in KeV
557 q += signal; // add digit to current cluster
564 } //* end loop over strips
566 } //* end loop over ADC sides
570 if( nClusters1D[0] && nClusters1D[1] && fModule>=0 ){
571 TClonesArray* clusters = rpc->UncheckedGetClusters(fModule);
572 FindClustersSSD( clusters1D[0], nClusters1D[0], clusters1D[1], nClusters1D[1], clusters);
573 Int_t nClustersn = clusters->GetEntriesFast();
574 nClustersSSD += nClustersn;
577 //cout<<"SG: "<<ddl<<" "<<ad<<" "<<adc<<": strips "<<nstat[0]<<"+"<<nstat[1]<<", clusters 1D= "<<nClusters1D[0]<<" + "<<nClusters1D[1]<<", 2D= "<<clusters.size()<<endl;
579 }//* end loop over adc
581 }//* end of reconstruction of previous block of 12 modules
586 //* Clean up arrays and set new module
589 for( int i=0; i<kNADC; i++ ){
599 //* Exit main loop when there is no more input
605 //* Fill the current strip information
608 Int_t adc = input->GetADC();
609 if( adc<0 || adc>=kNADC+2 || (adc>5&&adc<8) ){
610 AliWarning(Form("HLT ClustersFinderSSD: Corrupted data: wrong adc number (%d)", adc));
614 if( adc>7 ) adc-= 2; // shift ADC numbers 8-13 to 6-11
616 Bool_t side = input->GetSideFlag();
617 Int_t strip = input->GetStrip();
618 Int_t signal = input->GetSignal();
621 //cout<<"SSD: "<<ddl<<" "<<ad<<" "<<adc<<" "<<side<<" "<<strip<<" : "<<signal<<endl;
624 AliWarning(Form("HLT ClustersFinderSSD: Corrupted data: wrong strip number (ddl %d ad %d adc %d side %d, strip %d",
625 ddl, ad, adc, side,strip) );
628 if (strip < 0) continue;
630 int &n = nStrips[adc][side];
632 Int_t oldStrip = strips[adc][side][n-1][0];
634 if( strip==oldStrip ){
635 AliWarning(Form("HLT ClustersFinderSSD: Corrupted data: duplicated signal: ddl %d ad %d adc %d, side %d, strip %d",
636 ddl, ad, adc, side, strip ));
640 strips[adc][side][n][0] = strip;
641 strips[adc][side][n][1] = signal;
644 //cout<<"SSD: "<<input->GetDDL()<<" "<<input->GetAD()<<" "
645 //<<input->GetADC()<<" "<<input->GetSideFlag()<<" "<<((int)input->GetStrip())<<" "<<strip<<" : "<<input->GetSignal()<<endl;
647 } //* End main loop over the input
649 AliDebug(1,Form("found clusters in ITS SSD: %d", nClustersSSD));
653 void AliITSClusterFinderV2SSD::
654 FindClustersSSD(Ali1Dcluster* neg, Int_t nn,
655 Ali1Dcluster* pos, Int_t np,
656 TClonesArray *clusters) {
657 //------------------------------------------------------------
658 // Actual SSD cluster finder
659 //------------------------------------------------------------
661 const TGeoHMatrix *mT2L=AliITSgeomTGeo::GetTracking2LocalMatrix(fModule);
663 //---------------------------------------
666 static AliITSRecoParam *repa = NULL;
668 repa = (AliITSRecoParam*) AliITSReconstructor::GetRecoParam();
670 repa = AliITSRecoParam::GetHighFluxParam();
671 AliWarning("Using default AliITSRecoParam class");
675 // TClonesArray &cl=*clusters;
677 AliITSsegmentationSSD *seg = dynamic_cast<AliITSsegmentationSSD*>(fDetTypeRec->GetSegmentationModel(2));
678 if (fModule>fLastSSD1)
683 Float_t hwSSD = seg->Dx()*1e-4/2;
684 Float_t hlSSD = seg->Dz()*1e-4/2;
686 Int_t idet=fNdet[fModule];
690 Int_t *cnegative = new Int_t[np];
691 Int_t *cused1 = new Int_t[np];
692 Int_t *negativepair = new Int_t[10*np];
693 Int_t *cpositive = new Int_t[nn];
694 Int_t *cused2 = new Int_t[nn];
695 Int_t *positivepair = new Int_t[10*nn];
696 for (Int_t i=0;i<np;i++) {cnegative[i]=0; cused1[i]=0;}
697 for (Int_t i=0;i<nn;i++) {cpositive[i]=0; cused2[i]=0;}
698 for (Int_t i=0;i<10*np;i++) {negativepair[i]=0;}
699 for (Int_t i=0;i<10*nn;i++) {positivepair[i]=0;}
701 if ((np*nn) > fgPairsSize) {
703 if (fgPairs) delete [] fgPairs;
704 fgPairsSize = 4*np*nn;
705 fgPairs = new Short_t[fgPairsSize];
707 memset(fgPairs,0,sizeof(Short_t)*np*nn);
710 // find available pairs
713 for (Int_t i=0; i<np; i++) {
714 Float_t yp=pos[i].GetY();
715 if ( (pos[i].GetQ()>0) && (pos[i].GetQ()<3) ) continue;
716 for (Int_t j=0; j<nn; j++) {
717 if ( (neg[j].GetQ()>0) && (neg[j].GetQ()<3) ) continue;
718 Float_t yn=neg[j].GetY();
721 seg->GetPadCxz(yn, yp, xt, zt);
722 //cout<<yn<<" "<<yp<<" "<<xt<<" "<<zt<<endl;
724 if (TMath::Abs(xt)<hwSSD)
725 if (TMath::Abs(zt)<hlSSD) {
726 Int_t in = i*10+cnegative[i];
727 Int_t ip = j*10+cpositive[j];
728 if ((in < 10*np) && (ip < 10*nn)) {
729 negativepair[in] =j; //index
731 cnegative[i]++; //counters
737 AliError(Form("Index out of range: ip=%d, in=%d",ip,in));
743 //why not to allocate memorey here? if(!clusters) clusters = new TClonesArray("AliITSRecPoint", ncross);
746 // try to recover points out of but close to the module boundaries
748 for (Int_t i=0; i<np; i++) {
749 Float_t yp=pos[i].GetY();
750 if ( (pos[i].GetQ()>0) && (pos[i].GetQ()<3) ) continue;
751 for (Int_t j=0; j<nn; j++) {
752 if ( (neg[j].GetQ()>0) && (neg[j].GetQ()<3) ) continue;
753 // if both 1Dclusters have an other cross continue
754 if (cpositive[j]&&cnegative[i]) continue;
755 Float_t yn=neg[j].GetY();
758 seg->GetPadCxz(yn, yp, xt, zt);
760 if (TMath::Abs(xt)<hwSSD+0.1)
761 if (TMath::Abs(zt)<hlSSD+0.15) {
762 // tag 1Dcluster (eventually will produce low quality recpoint)
763 if (cnegative[i]==0) pos[i].SetNd(100); // not available pair
764 if (cpositive[j]==0) neg[j].SetNd(100); // not available pair
765 Int_t in = i*10+cnegative[i];
766 Int_t ip = j*10+cpositive[j];
767 if ((in < 10*np) && (ip < 10*nn)) {
768 negativepair[in] =j; //index
770 cnegative[i]++; //counters
775 AliError(Form("Index out of range: ip=%d, in=%d",ip,in));
787 if(repa->GetUseChargeMatchingInClusterFinderSSD()==kTRUE) {
793 for (Int_t ip=0;ip<np;ip++){
794 Float_t xbest=1000,zbest=1000,qbest=0;
796 // select gold clusters
797 if ( (cnegative[ip]==1) && cpositive[negativepair[10*ip]]==1){
798 Float_t yp=pos[ip].GetY();
799 Int_t j = negativepair[10*ip];
801 if( (pos[ip].GetQ()==0) && (neg[j].GetQ() ==0) ) {
802 // both bad, hence continue;
803 // mark both as used (to avoid recover at the end)
809 ratio = (pos[ip].GetQ()-neg[j].GetQ())/(pos[ip].GetQ()+neg[j].GetQ());
810 //cout<<"ratio="<<ratio<<endl;
812 // charge matching (note that if posQ or negQ is 0 -> ratio=1 and the following condition is met
813 if (TMath::Abs(ratio)>0.2) continue; // note: 0.2=3xsigma_ratio calculated in cosmics tests
816 Float_t yn=neg[j].GetY();
819 seg->GetPadCxz(yn, yp, xt, zt);
824 qbest=0.5*(pos[ip].GetQ()+neg[j].GetQ());
825 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
828 Double_t loc[3]={xbest,0.,zbest},trk[3]={0.,0.,0.};
829 mT2L->MasterToLocal(loc,trk);
834 for (Int_t ilab=0;ilab<10;ilab++) milab[ilab]=-2;
835 for (Int_t ilab=0;ilab<3;ilab++){
836 milab[ilab] = pos[ip].GetLabel(ilab);
837 milab[ilab+3] = neg[j].GetLabel(ilab);
841 milab[3]=(((ip<<10) + j)<<10) + idet; // pos|neg|det
842 Int_t info[3] = {pos[ip].GetNd(),neg[j].GetNd(),fNlayer[fModule]};
844 lp[2]=4.968e-06; // 0.00223*0.00223; //SigmaY2
845 lp[3]=0.012; // 0.110*0.110; //SigmaZ2
846 // out-of-diagonal element of covariance matrix
847 if( (info[0]==1) && (info[1]==1) ) lp[5]=-0.00012;
848 else if ( (info[0]>1) && (info[1]>1) ) {
849 lp[2]=2.63e-06; // 0.0016*0.0016; //SigmaY2
850 lp[3]=0.0065; // 0.08*0.08; //SigmaZ2
854 lp[2]=4.80e-06; // 0.00219*0.00219
855 lp[3]=0.0093; // 0.0964*0.0964;
860 lp[2]=2.79e-06; // 0.0017*0.0017;
861 lp[3]=0.00935; // 0.967*0.967;
866 AliITSRecPoint * cl2;
867 cl2 = new ((*clusters)[ncl]) AliITSRecPoint(milab,lp,info);
869 cl2->SetChargeRatio(ratio);
873 if ((pos[ip].GetNd()+neg[j].GetNd())>6){ //multi cluster
878 if(pos[ip].GetQ()==0) cl2->SetType(3);
879 if(neg[j].GetQ()==0) cl2->SetType(4);
888 for (Int_t ip=0;ip<np;ip++){
889 Float_t xbest=1000,zbest=1000,qbest=0;
892 // select "silber" cluster
893 if ( cnegative[ip]==1 && cpositive[negativepair[10*ip]]==2){
894 Int_t in = negativepair[10*ip];
895 Int_t ip2 = positivepair[10*in];
896 if (ip2==ip) ip2 = positivepair[10*in+1];
897 Float_t pcharge = pos[ip].GetQ()+pos[ip2].GetQ();
901 ratio = (pcharge-neg[in].GetQ())/(pcharge+neg[in].GetQ());
902 if ( (TMath::Abs(ratio)<0.2) && (pcharge!=0) ) {
903 //if ( (TMath::Abs(pcharge-neg[in].GetQ())<30) && (pcharge!=0) ) { //
907 if ( (fgPairs[ip*nn+in]==100)&&(pos[ip].GetQ() ) ) { //
909 Float_t yp=pos[ip].GetY();
910 Float_t yn=neg[in].GetY();
913 seg->GetPadCxz(yn, yp, xt, zt);
917 qbest =pos[ip].GetQ();
918 Double_t loc[3]={xbest,0.,zbest},trk[3]={0.,0.,0.};
919 mT2L->MasterToLocal(loc,trk);
924 for (Int_t ilab=0;ilab<10;ilab++) milab[ilab]=-2;
925 for (Int_t ilab=0;ilab<3;ilab++){
926 milab[ilab] = pos[ip].GetLabel(ilab);
927 milab[ilab+3] = neg[in].GetLabel(ilab);
931 ratio = (pos[ip].GetQ()-neg[in].GetQ())/(pos[ip].GetQ()+neg[in].GetQ());
932 milab[3]=(((ip<<10) + in)<<10) + idet; // pos|neg|det
933 Int_t info[3] = {pos[ip].GetNd(),neg[in].GetNd(),fNlayer[fModule]};
935 lp[2]=4.968e-06; // 0.00223*0.00223; //SigmaY2
936 lp[3]=0.012; // 0.110*0.110; //SigmaZ2
937 // out-of-diagonal element of covariance matrix
938 if( (info[0]==1) && (info[1]==1) ) lp[5]=-0.00012;
939 else if ( (info[0]>1) && (info[1]>1) ) {
940 lp[2]=2.63e-06; // 0.0016*0.0016; //SigmaY2
941 lp[3]=0.0065; // 0.08*0.08; //SigmaZ2
945 lp[2]=4.80e-06; // 0.00219*0.00219
946 lp[3]=0.0093; // 0.0964*0.0964;
951 lp[2]=2.79e-06; // 0.0017*0.0017;
952 lp[3]=0.00935; // 0.967*0.967;
957 AliITSRecPoint * cl2;
958 cl2 = new ((*clusters)[ncl]) AliITSRecPoint(milab,lp,info);
959 cl2->SetChargeRatio(ratio);
961 fgPairs[ip*nn+in] = 5;
962 if ((pos[ip].GetNd()+neg[in].GetNd())>6){ //multi cluster
964 fgPairs[ip*nn+in] = 6;
973 // if (!(cused1[ip2] || cused2[in])){ //
974 if ( (fgPairs[ip2*nn+in]==100) && (pos[ip2].GetQ()) ) {
976 Float_t yp=pos[ip2].GetY();
977 Float_t yn=neg[in].GetY();
980 seg->GetPadCxz(yn, yp, xt, zt);
984 qbest =pos[ip2].GetQ();
986 Double_t loc[3]={xbest,0.,zbest},trk[3]={0.,0.,0.};
987 mT2L->MasterToLocal(loc,trk);
992 for (Int_t ilab=0;ilab<10;ilab++) milab[ilab]=-2;
993 for (Int_t ilab=0;ilab<3;ilab++){
994 milab[ilab] = pos[ip2].GetLabel(ilab);
995 milab[ilab+3] = neg[in].GetLabel(ilab);
999 ratio = (pos[ip2].GetQ()-neg[in].GetQ())/(pos[ip2].GetQ()+neg[in].GetQ());
1000 milab[3]=(((ip2<<10) + in)<<10) + idet; // pos|neg|det
1001 Int_t info[3] = {pos[ip2].GetNd(),neg[in].GetNd(),fNlayer[fModule]};
1003 lp[2]=4.968e-06; // 0.00223*0.00223; //SigmaY2
1004 lp[3]=0.012; // 0.110*0.110; //SigmaZ2
1005 // out-of-diagonal element of covariance matrix
1006 if( (info[0]==1) && (info[1]==1) ) lp[5]=-0.00012;
1007 else if ( (info[0]>1) && (info[1]>1) ) {
1008 lp[2]=2.63e-06; // 0.0016*0.0016; //SigmaY2
1009 lp[3]=0.0065; // 0.08*0.08; //SigmaZ2
1013 lp[2]=4.80e-06; // 0.00219*0.00219
1014 lp[3]=0.0093; // 0.0964*0.0964;
1019 lp[2]=2.79e-06; // 0.0017*0.0017;
1020 lp[3]=0.00935; // 0.967*0.967;
1025 AliITSRecPoint * cl2;
1026 cl2 = new ((*clusters)[ncl]) AliITSRecPoint(milab,lp,info);
1028 cl2->SetChargeRatio(ratio);
1030 fgPairs[ip2*nn+in] =5;
1031 if ((pos[ip2].GetNd()+neg[in].GetNd())>6){ //multi cluster
1033 fgPairs[ip2*nn+in] =6;
1042 } // charge matching condition
1044 } // 2 Pside cross 1 Nside
1045 } // loop over Pside clusters
1050 for (Int_t jn=0;jn<nn;jn++){
1051 if (cused2[jn]) continue;
1052 Float_t xbest=1000,zbest=1000,qbest=0;
1053 // select "silber" cluster
1054 if ( cpositive[jn]==1 && cnegative[positivepair[10*jn]]==2){
1055 Int_t ip = positivepair[10*jn];
1056 Int_t jn2 = negativepair[10*ip];
1057 if (jn2==jn) jn2 = negativepair[10*ip+1];
1058 Float_t pcharge = neg[jn].GetQ()+neg[jn2].GetQ();
1062 ratio = (pcharge-pos[ip].GetQ())/(pcharge+pos[ip].GetQ());
1063 if ( (TMath::Abs(ratio)<0.2) && (pcharge!=0) ) {
1066 if ( (TMath::Abs(pcharge-pos[ip].GetQ())<30) && // charge matching
1067 (pcharge!=0) ) { // reject combinations of bad strips
1073 // if (!(cused1[ip]||cused2[jn])){
1074 if ( (fgPairs[ip*nn+jn]==100) && (neg[jn].GetQ()) ) { //
1076 Float_t yn=neg[jn].GetY();
1077 Float_t yp=pos[ip].GetY();
1080 seg->GetPadCxz(yn, yp, xt, zt);
1084 qbest =neg[jn].GetQ();
1087 Double_t loc[3]={xbest,0.,zbest},trk[3]={0.,0.,0.};
1088 mT2L->MasterToLocal(loc,trk);
1094 for (Int_t ilab=0;ilab<10;ilab++) milab[ilab]=-2;
1095 for (Int_t ilab=0;ilab<3;ilab++){
1096 milab[ilab] = pos[ip].GetLabel(ilab);
1097 milab[ilab+3] = neg[jn].GetLabel(ilab);
1100 CheckLabels2(milab);
1101 ratio = (pos[ip].GetQ()-neg[jn].GetQ())/(pos[ip].GetQ()+neg[jn].GetQ());
1102 milab[3]=(((ip<<10) + jn)<<10) + idet; // pos|neg|det
1103 Int_t info[3] = {pos[ip].GetNd(),neg[jn].GetNd(),fNlayer[fModule]};
1105 lp[2]=4.968e-06; // 0.00223*0.00223; //SigmaY2
1106 lp[3]=0.012; // 0.110*0.110; //SigmaZ2
1107 // out-of-diagonal element of covariance matrix
1108 if( (info[0]==1) && (info[1]==1) ) lp[5]=-0.00012;
1109 else if ( (info[0]>1) && (info[1]>1) ) {
1110 lp[2]=2.63e-06; // 0.0016*0.0016; //SigmaY2
1111 lp[3]=0.0065; // 0.08*0.08; //SigmaZ2
1115 lp[2]=4.80e-06; // 0.00219*0.00219
1116 lp[3]=0.0093; // 0.0964*0.0964;
1121 lp[2]=2.79e-06; // 0.0017*0.0017;
1122 lp[3]=0.00935; // 0.967*0.967;
1127 AliITSRecPoint * cl2;
1128 cl2 = new ((*clusters)[ncl]) AliITSRecPoint(milab,lp,info);
1130 cl2->SetChargeRatio(ratio);
1132 fgPairs[ip*nn+jn] =7;
1133 if ((pos[ip].GetNd()+neg[jn].GetNd())>6){ //multi cluster
1135 fgPairs[ip*nn+jn]=8;
1141 // if (!(cused1[ip]||cused2[jn2])){
1142 if ( (fgPairs[ip*nn+jn2]==100)&&(neg[jn2].GetQ() ) ) { //
1144 Float_t yn=neg[jn2].GetY();
1145 Double_t yp=pos[ip].GetY();
1148 seg->GetPadCxz(yn, yp, xt, zt);
1152 qbest =neg[jn2].GetQ();
1155 Double_t loc[3]={xbest,0.,zbest},trk[3]={0.,0.,0.};
1156 mT2L->MasterToLocal(loc,trk);
1162 for (Int_t ilab=0;ilab<10;ilab++) milab[ilab]=-2;
1163 for (Int_t ilab=0;ilab<3;ilab++){
1164 milab[ilab] = pos[ip].GetLabel(ilab);
1165 milab[ilab+3] = neg[jn2].GetLabel(ilab);
1168 CheckLabels2(milab);
1169 ratio = (pos[ip].GetQ()-neg[jn2].GetQ())/(pos[ip].GetQ()+neg[jn2].GetQ());
1170 milab[3]=(((ip<<10) + jn2)<<10) + idet; // pos|neg|det
1171 Int_t info[3] = {pos[ip].GetNd(),neg[jn2].GetNd(),fNlayer[fModule]};
1173 lp[2]=4.968e-06; // 0.00223*0.00223; //SigmaY2
1174 lp[3]=0.012; // 0.110*0.110; //SigmaZ2
1175 // out-of-diagonal element of covariance matrix
1176 if( (info[0]==1) && (info[1]==1) ) lp[5]=-0.00012;
1177 else if ( (info[0]>1) && (info[1]>1) ) {
1178 lp[2]=2.63e-06; // 0.0016*0.0016; //SigmaY2
1179 lp[3]=0.0065; // 0.08*0.08; //SigmaZ2
1183 lp[2]=4.80e-06; // 0.00219*0.00219
1184 lp[3]=0.0093; // 0.0964*0.0964;
1189 lp[2]=2.79e-06; // 0.0017*0.0017;
1190 lp[3]=0.00935; // 0.967*0.967;
1195 AliITSRecPoint * cl2;
1196 cl2 = new ((*clusters)[ncl]) AliITSRecPoint(milab,lp,info);
1199 cl2->SetChargeRatio(ratio);
1200 fgPairs[ip*nn+jn2]=7;
1202 if ((pos[ip].GetNd()+neg[jn2].GetNd())>6){ //multi cluster
1204 fgPairs[ip*nn+jn2]=8;
1212 } // charge matching condition
1214 } // 2 Nside cross 1 Pside
1215 } // loop over Pside clusters
1219 for (Int_t ip=0;ip<np;ip++){
1221 if(cused1[ip]) continue;
1224 Float_t xbest=1000,zbest=1000,qbest=0;
1228 if ( (cnegative[ip]==2) && cpositive[negativepair[10*ip]]==2){
1229 Float_t minchargediff =4.;
1230 Float_t minchargeratio =0.2;
1233 for (Int_t di=0;di<cnegative[ip];di++){
1234 Int_t jc = negativepair[ip*10+di];
1235 Float_t chargedif = pos[ip].GetQ()-neg[jc].GetQ();
1236 ratio = (pos[ip].GetQ()-neg[jc].GetQ())/(pos[ip].GetQ()+neg[jc].GetQ());
1237 //if (TMath::Abs(chargedif)<minchargediff){
1238 if (TMath::Abs(ratio)<0.2){
1240 minchargediff = TMath::Abs(chargedif);
1241 minchargeratio = TMath::Abs(ratio);
1244 if (j<0) continue; // not proper cluster
1248 for (Int_t di=0;di<cnegative[ip];di++){
1249 Int_t jc = negativepair[ip*10+di];
1250 Float_t chargedif = pos[ip].GetQ()-neg[jc].GetQ();
1251 if (TMath::Abs(chargedif)<minchargediff+3.) count++;
1253 if (count>1) continue; // more than one "proper" cluster for positive
1257 for (Int_t dj=0;dj<cpositive[j];dj++){
1258 Int_t ic = positivepair[j*10+dj];
1259 Float_t chargedif = pos[ic].GetQ()-neg[j].GetQ();
1260 if (TMath::Abs(chargedif)<minchargediff+3.) count++;
1262 if (count>1) continue; // more than one "proper" cluster for negative
1267 for (Int_t dj=0;dj<cnegative[jp];dj++){
1268 Int_t ic = positivepair[jp*10+dj];
1269 Float_t chargedif = pos[ic].GetQ()-neg[jp].GetQ();
1270 if (TMath::Abs(chargedif)<minchargediff+4.) count++;
1272 if (count>1) continue;
1273 if (fgPairs[ip*nn+j]<100) continue;
1278 //almost gold clusters
1279 Float_t yp=pos[ip].GetY();
1280 Float_t yn=neg[j].GetY();
1282 seg->GetPadCxz(yn, yp, xt, zt);
1284 qbest=0.5*(pos[ip].GetQ()+neg[j].GetQ());
1286 Double_t loc[3]={xbest,0.,zbest},trk[3]={0.,0.,0.};
1287 mT2L->MasterToLocal(loc,trk);
1292 for (Int_t ilab=0;ilab<10;ilab++) milab[ilab]=-2;
1293 for (Int_t ilab=0;ilab<3;ilab++){
1294 milab[ilab] = pos[ip].GetLabel(ilab);
1295 milab[ilab+3] = neg[j].GetLabel(ilab);
1298 CheckLabels2(milab);
1299 if ((neg[j].GetQ()==0)&&(pos[ip].GetQ()==0)) continue; // reject crosses of bad strips!!
1300 ratio = (pos[ip].GetQ()-neg[j].GetQ())/(pos[ip].GetQ()+neg[j].GetQ());
1301 milab[3]=(((ip<<10) + j)<<10) + idet; // pos|neg|det
1302 Int_t info[3] = {pos[ip].GetNd(),neg[j].GetNd(),fNlayer[fModule]};
1304 lp[2]=4.968e-06; // 0.00223*0.00223; //SigmaY2
1305 lp[3]=0.012; // 0.110*0.110; //SigmaZ2
1306 // out-of-diagonal element of covariance matrix
1307 if( (info[0]==1) && (info[1]==1) ) lp[5]=-0.00012;
1308 else if ( (info[0]>1) && (info[1]>1) ) {
1309 lp[2]=2.63e-06; // 0.0016*0.0016; //SigmaY2
1310 lp[3]=0.0065; // 0.08*0.08; //SigmaZ2
1314 lp[2]=4.80e-06; // 0.00219*0.00219
1315 lp[3]=0.0093; // 0.0964*0.0964;
1320 lp[2]=2.79e-06; // 0.0017*0.0017;
1321 lp[3]=0.00935; // 0.967*0.967;
1326 AliITSRecPoint * cl2;
1327 cl2 = new ((*clusters)[ncl]) AliITSRecPoint(milab,lp,info);
1329 cl2->SetChargeRatio(ratio);
1331 fgPairs[ip*nn+j]=10;
1332 if ((pos[ip].GetNd()+neg[j].GetNd())>6){ //multi cluster
1334 fgPairs[ip*nn+j]=11;
1341 } // loop over Pside 1Dclusters
1345 for (Int_t ip=0;ip<np;ip++){
1347 if(cused1[ip]) continue;
1350 Float_t xbest=1000,zbest=1000,qbest=0;
1352 // manyxmany clusters
1354 if ( (cnegative[ip]<5) && cpositive[negativepair[10*ip]]<5){
1355 Float_t minchargediff =4.;
1357 for (Int_t di=0;di<cnegative[ip];di++){
1358 Int_t jc = negativepair[ip*10+di];
1359 Float_t chargedif = pos[ip].GetQ()-neg[jc].GetQ();
1360 if (TMath::Abs(chargedif)<minchargediff){
1362 minchargediff = TMath::Abs(chargedif);
1365 if (j<0) continue; // not proper cluster
1368 for (Int_t di=0;di<cnegative[ip];di++){
1369 Int_t jc = negativepair[ip*10+di];
1370 Float_t chargedif = pos[ip].GetQ()-neg[jc].GetQ();
1371 if (TMath::Abs(chargedif)<minchargediff+3.) count++;
1373 if (count>1) continue; // more than one "proper" cluster for positive
1377 for (Int_t dj=0;dj<cpositive[j];dj++){
1378 Int_t ic = positivepair[j*10+dj];
1379 Float_t chargedif = pos[ic].GetQ()-neg[j].GetQ();
1380 if (TMath::Abs(chargedif)<minchargediff+3.) count++;
1382 if (count>1) continue; // more than one "proper" cluster for negative
1387 for (Int_t dj=0;dj<cnegative[jp];dj++){
1388 Int_t ic = positivepair[jp*10+dj];
1389 Float_t chargedif = pos[ic].GetQ()-neg[jp].GetQ();
1390 if (TMath::Abs(chargedif)<minchargediff+4.) count++;
1392 if (count>1) continue;
1393 if (fgPairs[ip*nn+j]<100) continue;
1396 //almost gold clusters
1397 Float_t yp=pos[ip].GetY();
1398 Float_t yn=neg[j].GetY();
1402 seg->GetPadCxz(yn, yp, xt, zt);
1406 qbest=0.5*(pos[ip].GetQ()+neg[j].GetQ());
1409 Double_t loc[3]={xbest,0.,zbest},trk[3]={0.,0.,0.};
1410 mT2L->MasterToLocal(loc,trk);
1415 for (Int_t ilab=0;ilab<10;ilab++) milab[ilab]=-2;
1416 for (Int_t ilab=0;ilab<3;ilab++){
1417 milab[ilab] = pos[ip].GetLabel(ilab);
1418 milab[ilab+3] = neg[j].GetLabel(ilab);
1421 CheckLabels2(milab);
1422 if ((neg[j].GetQ()==0)&&(pos[ip].GetQ()==0)) continue; // reject crosses of bad strips!!
1423 ratio = (pos[ip].GetQ()-neg[j].GetQ())/(pos[ip].GetQ()+neg[j].GetQ());
1424 milab[3]=(((ip<<10) + j)<<10) + idet; // pos|neg|det
1425 Int_t info[3] = {pos[ip].GetNd(),neg[j].GetNd(),fNlayer[fModule]};
1427 lp[2]=4.968e-06; // 0.00223*0.00223; //SigmaY2
1428 lp[3]=0.012; // 0.110*0.110; //SigmaZ2
1429 // out-of-diagonal element of covariance matrix
1430 if( (info[0]==1) && (info[1]==1) ) lp[5]=-0.00012;
1431 else if ( (info[0]>1) && (info[1]>1) ) {
1432 lp[2]=2.63e-06; // 0.0016*0.0016; //SigmaY2
1433 lp[3]=0.0065; // 0.08*0.08; //SigmaZ2
1437 lp[2]=4.80e-06; // 0.00219*0.00219
1438 lp[3]=0.0093; // 0.0964*0.0964;
1443 lp[2]=2.79e-06; // 0.0017*0.0017;
1444 lp[3]=0.00935; // 0.967*0.967;
1449 AliITSRecPoint * cl2;
1450 cl2 = new ((*clusters)[ncl]) AliITSRecPoint(milab,lp,info);
1452 cl2->SetChargeRatio(ratio);
1454 fgPairs[ip*nn+j]=12;
1455 if ((pos[ip].GetNd()+neg[j].GetNd())>6){ //multi cluster
1457 fgPairs[ip*nn+j]=13;
1464 } // loop over Pside 1Dclusters
1466 } // use charge matching
1469 // recover all the other crosses
1471 for (Int_t i=0; i<np; i++) {
1472 Float_t xbest=1000,zbest=1000,qbest=0;
1473 Float_t yp=pos[i].GetY();
1474 if ((pos[i].GetQ()>0)&&(pos[i].GetQ()<3)) continue;
1475 for (Int_t j=0; j<nn; j++) {
1476 // for (Int_t di = 0;di<cpositive[i];di++){
1477 // Int_t j = negativepair[10*i+di];
1478 if ((neg[j].GetQ()>0)&&(neg[j].GetQ()<3)) continue;
1480 if ((neg[j].GetQ()==0)&&(pos[i].GetQ()==0)) continue; // reject crosses of bad strips!!
1482 if (cused2[j]||cused1[i]) continue;
1483 if (fgPairs[i*nn+j]>0 &&fgPairs[i*nn+j]<100) continue;
1484 ratio = (pos[i].GetQ()-neg[j].GetQ())/(pos[i].GetQ()+neg[j].GetQ());
1485 Float_t yn=neg[j].GetY();
1488 seg->GetPadCxz(yn, yp, xt, zt);
1490 if (TMath::Abs(xt)<hwSSD)
1491 if (TMath::Abs(zt)<hlSSD) {
1494 qbest=0.5*(pos[i].GetQ()+neg[j].GetQ());
1497 Double_t loc[3]={xbest,0.,zbest},trk[3]={0.,0.,0.};
1498 mT2L->MasterToLocal(loc,trk);
1503 for (Int_t ilab=0;ilab<10;ilab++) milab[ilab]=-2;
1504 for (Int_t ilab=0;ilab<3;ilab++){
1505 milab[ilab] = pos[i].GetLabel(ilab);
1506 milab[ilab+3] = neg[j].GetLabel(ilab);
1509 CheckLabels2(milab);
1510 milab[3]=(((i<<10) + j)<<10) + idet; // pos|neg|det
1511 Int_t info[3] = {pos[i].GetNd(),neg[j].GetNd(),fNlayer[fModule]};
1513 lp[2]=4.968e-06; // 0.00223*0.00223; //SigmaY2
1514 lp[3]=0.012; // 0.110*0.110; //SigmaZ2
1515 // out-of-diagonal element of covariance matrix
1516 if( (info[0]==1) && (info[1]==1) ) lp[5]=-0.00012;
1517 else if ( (info[0]>1) && (info[1]>1) ) {
1518 lp[2]=2.63e-06; // 0.0016*0.0016; //SigmaY2
1519 lp[3]=0.0065; // 0.08*0.08; //SigmaZ2
1523 lp[2]=4.80e-06; // 0.00219*0.00219
1524 lp[3]=0.0093; // 0.0964*0.0964;
1529 lp[2]=2.79e-06; // 0.0017*0.0017;
1530 lp[3]=0.00935; // 0.967*0.967;
1535 AliITSRecPoint * cl2;
1536 cl2 = new ((*clusters)[ncl]) AliITSRecPoint(milab,lp,info);
1538 cl2->SetChargeRatio(ratio);
1539 cl2->SetType(100+cpositive[j]+cnegative[i]);
1541 if(pos[i].GetQ()==0) cl2->SetType(200+cpositive[j]+cnegative[i]);
1542 if(neg[j].GetQ()==0) cl2->SetType(300+cpositive[j]+cnegative[i]);
1550 if(repa->GetUseBadChannelsInClusterFinderSSD()==kTRUE) {
1552 //---------------------------------------------------------
1553 // recover crosses of good 1D clusters with bad strips on the other side
1554 // Note1: at first iteration skip modules with a bad side (or almost), (would produce too many fake!)
1555 // Note2: for modules with a bad side see below
1557 AliITSCalibrationSSD* cal = (AliITSCalibrationSSD*)GetResp(fModule);
1558 Int_t countPbad=0, countNbad=0;
1559 for(Int_t ib=0; ib<768; ib++) {
1560 if(cal->IsPChannelBad(ib)) countPbad++;
1561 if(cal->IsNChannelBad(ib)) countNbad++;
1563 // AliInfo(Form("module %d has %d P- and %d N-bad strips",fModule,countPbad,countNbad));
1565 if( (countPbad<100) && (countNbad<100) ) { // no bad side!!
1567 for (Int_t i=0; i<np; i++) { // loop over Nside 1Dclusters with no crosses
1568 if(cnegative[i]) continue; // if intersecting Pside clusters continue;
1570 // for(Int_t ib=0; ib<768; ib++) { // loop over all Pstrips
1571 for(Int_t ib=15; ib<753; ib++) { // loop over all Pstrips
1573 if(cal->IsPChannelBad(ib)) { // check if strips is bad
1574 Float_t yN=pos[i].GetY();
1576 seg->GetPadCxz(1.*ib, yN, xt, zt);
1579 // bad Pstrip is crossing the Nside 1Dcluster -> create recpoint
1581 if ( (TMath::Abs(xt)<hwSSD) && (TMath::Abs(zt)<hlSSD) ) {
1582 Double_t loc[3]={xt,0.,zt},trk[3]={0.,0.,0.};
1583 mT2L->MasterToLocal(loc,trk);
1586 lp[4]=pos[i].GetQ(); //Q
1587 for (Int_t ilab=0;ilab<10;ilab++) milab[ilab]=-2;
1588 for (Int_t ilab=0;ilab<3;ilab++) milab[ilab] = pos[i].GetLabel(ilab);
1589 CheckLabels2(milab);
1590 milab[3]=( (i<<10) << 10 ) + idet; // pos|neg|det
1591 Int_t info[3] = {pos[i].GetNd(),0,fNlayer[fModule]};
1593 lp[2]=4.968e-06; // 0.00223*0.00223; //SigmaY2
1594 lp[3]=0.012; // 0.110*0.110; //SigmaZ2
1595 lp[5]=-0.00012; // out-of-diagonal element of covariance matrix
1602 AliITSRecPoint * cl2;
1603 cl2 = new ((*clusters)[ncl]) AliITSRecPoint(milab,lp,info);
1604 cl2->SetChargeRatio(1.);
1607 } // cross is within the detector
1613 } // end loop over Pstrips
1615 } // end loop over Nside 1D clusters
1617 for (Int_t j=0; j<nn; j++) { // loop over Pside 1D clusters with no crosses
1618 if(cpositive[j]) continue;
1620 // for(Int_t ib=0; ib<768; ib++) { // loop over all Nside strips
1621 for(Int_t ib=15; ib<753; ib++) { // loop over all Nside strips
1623 if(cal->IsNChannelBad(ib)) { // check if strip is bad
1624 Float_t yP=neg[j].GetY();
1626 seg->GetPadCxz(yP, 1.*ib, xt, zt);
1629 // bad Nstrip is crossing the Pside 1Dcluster -> create recpoint
1631 if ( (TMath::Abs(xt)<hwSSD) && (TMath::Abs(zt)<hlSSD) ) {
1632 Double_t loc[3]={xt,0.,zt},trk[3]={0.,0.,0.};
1633 mT2L->MasterToLocal(loc,trk);
1636 lp[4]=neg[j].GetQ(); //Q
1637 for (Int_t ilab=0;ilab<10;ilab++) milab[ilab]=-2;
1638 for (Int_t ilab=0;ilab<3;ilab++) milab[ilab] = neg[j].GetLabel(ilab);
1639 CheckLabels2(milab);
1640 milab[3]=( j << 10 ) + idet; // pos|neg|det
1641 Int_t info[3]={0,(Int_t)neg[j].GetNd(),fNlayer[fModule]};
1643 lp[2]=4.968e-06; // 0.00223*0.00223; //SigmaY2
1644 lp[3]=0.012; // 0.110*0.110; //SigmaZ2
1645 lp[5]=-0.00012; // out-of-diagonal element of covariance matrix
1652 AliITSRecPoint * cl2;
1653 cl2 = new ((*clusters)[ncl]) AliITSRecPoint(milab,lp,info);
1654 cl2->SetChargeRatio(1.);
1657 } // cross is within the detector
1662 } // end loop over Nstrips
1663 } // end loop over Pside 1D clusters
1667 //---------------------------------------------------------
1669 else if( (countPbad>700) && (countNbad<100) ) { // bad Pside!!
1671 for (Int_t i=0; i<np; i++) { // loop over Nside 1Dclusters with no crosses
1672 if(cnegative[i]) continue; // if intersecting Pside clusters continue;
1675 Float_t yN=pos[i].GetY();
1677 if (seg->GetLayer()==5) yP = yN + (7.6/1.9);
1678 else yP = yN - (7.6/1.9);
1679 seg->GetPadCxz(yP, yN, xt, zt);
1681 if ( (TMath::Abs(xt)<hwSSD) && (TMath::Abs(zt)<hlSSD) ) {
1682 Double_t loc[3]={xt,0.,zt},trk[3]={0.,0.,0.};
1683 mT2L->MasterToLocal(loc,trk);
1686 lp[4]=pos[i].GetQ(); //Q
1687 for (Int_t ilab=0;ilab<10;ilab++) milab[ilab]=-2;
1688 for (Int_t ilab=0;ilab<3;ilab++) milab[ilab] = pos[i].GetLabel(ilab);
1689 CheckLabels2(milab);
1690 milab[3]=( (i<<10) << 10 ) + idet; // pos|neg|det
1691 Int_t info[3] = {(Int_t)pos[i].GetNd(),0,fNlayer[fModule]};
1693 lp[2]=0.00098; // 0.031*0.031; //SigmaY2
1694 lp[3]=1.329; // 1.15*1.15; //SigmaZ2
1696 if(info[0]>1) lp[2]=0.00097;
1698 AliITSRecPoint * cl2;
1699 cl2 = new ((*clusters)[ncl]) AliITSRecPoint(milab,lp,info);
1700 cl2->SetChargeRatio(1.);
1703 } // cross is within the detector
1707 } // end loop over Nside 1D clusters
1709 } // bad Pside module
1711 else if( (countNbad>700) && (countPbad<100) ) { // bad Nside!!
1713 for (Int_t j=0; j<nn; j++) { // loop over Pside 1D clusters with no crosses
1714 if(cpositive[j]) continue;
1717 Float_t yP=neg[j].GetY();
1719 if (seg->GetLayer()==5) yN = yP - (7.6/1.9);
1720 else yN = yP + (7.6/1.9);
1721 seg->GetPadCxz(yP, yN, xt, zt);
1723 if ( (TMath::Abs(xt)<hwSSD) && (TMath::Abs(zt)<hlSSD) ) {
1724 Double_t loc[3]={xt,0.,zt},trk[3]={0.,0.,0.};
1725 mT2L->MasterToLocal(loc,trk);
1728 lp[4]=neg[j].GetQ(); //Q
1729 for (Int_t ilab=0;ilab<10;ilab++) milab[ilab]=-2;
1730 for (Int_t ilab=0;ilab<3;ilab++) milab[ilab] = neg[j].GetLabel(ilab);
1731 CheckLabels2(milab);
1732 milab[3]=( j << 10 ) + idet; // pos|neg|det
1733 Int_t info[3] = {0,(Int_t)neg[j].GetNd(),fNlayer[fModule]};
1735 lp[2]=7.27e-05; // 0.0085*0.0085; //SigmaY2
1736 lp[3]=1.33; // 1.15*1.15; //SigmaZ2
1738 if(info[1]>1) lp[2]=6.91e-05;
1740 AliITSRecPoint * cl2;
1741 cl2 = new ((*clusters)[ncl]) AliITSRecPoint(milab,lp,info);
1742 cl2->SetChargeRatio(1.);
1745 } // cross is within the detector
1749 } // end loop over Pside 1D clusters
1751 } // bad Nside module
1753 //---------------------------------------------------------
1755 } // use bad channels
1757 //cout<<ncl<<" clusters for this module"<<endl;
1759 delete [] cnegative;
1761 delete [] negativepair;
1762 delete [] cpositive;
1764 delete [] positivepair;