1 /**************************************************************************
2 * Copyright(c) 1998-2003, 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 **************************************************************************/
15 ////////////////////////////////////////////////////////////////////////////
16 // Implementation of the ITS clusterer V2 class //
18 // Origin: Iouri Belikov, CERN, Jouri.Belikov@cern.ch //
19 // Unfolding switch from AliITSRecoParam: D. Elia, INFN Bari //
21 ////////////////////////////////////////////////////////////////////////////
24 #include "AliITSCalibrationSPD.h"
25 #include "AliITSClusterFinderV2SPD.h"
26 #include "AliITSRecPoint.h"
27 #include "AliITSgeomTGeo.h"
28 #include "AliITSDetTypeRec.h"
29 #include "AliITSReconstructor.h"
30 #include "AliRawReader.h"
31 #include "AliITSRawStreamSPD.h"
32 #include <TClonesArray.h>
33 #include "AliITSdigitSPD.h"
34 #include "AliITSFOSignalsSPD.h"
36 ClassImp(AliITSClusterFinderV2SPD)
38 //__________________________________________________________________________
39 AliITSClusterFinderV2SPD::AliITSClusterFinderV2SPD(AliITSDetTypeRec* dettyp):AliITSClusterFinder(dettyp),
40 fLastSPD1(AliITSgeomTGeo::GetModuleIndex(2,1,1)-1),
51 fYSPD[0]=0.5*fYpitchSPD;
52 for (Int_t m=1; m<fNySPD; m++) fYSPD[m]=fYSPD[m-1]+fYpitchSPD;
54 for (Int_t m=1; m<fNzSPD; m++) {
55 Double_t dz=fZ1pitchSPD;
56 if (m==31 || m==32 || m==63 || m==64 || m==95 || m==96 ||
57 m==127 || m==128) dz=fZ2pitchSPD;
58 fZSPD[m]=fZSPD[m-1]+dz;
60 for (Int_t m=0; m<fNzSPD; m++) {
61 Double_t dz=0.5*fZ1pitchSPD;
62 if (m==31 || m==32 || m==63 || m==64 || m==95 || m==96 ||
63 m==127 || m==128) dz=0.5*fZ2pitchSPD;
68 //__________________________________________________________________________
69 void AliITSClusterFinderV2SPD::FindRawClusters(Int_t mod){
72 FindClustersSPD(fDigits);
75 //__________________________________________________________________________
76 void AliITSClusterFinderV2SPD::RawdataToClusters(AliRawReader* rawReader, TClonesArray** clusters){
77 //------------------------------------------------------------
78 // This function creates ITS clusters from raw data
79 //------------------------------------------------------------
81 AliITSRawStreamSPD inputSPD(rawReader);
82 FindClustersSPD(&inputSPD, clusters);
85 //__________________________________________________________________________
86 Int_t AliITSClusterFinderV2SPD::ClustersSPD(AliBin* bins, TClonesArray* digits,TClonesArray* clusters,Int_t maxBins,Int_t nzbins,Int_t iModule,Bool_t rawdata){
88 //Cluster finder for SPD (from digits and from rawdata)
90 static AliITSRecoParam *repa = NULL;
92 repa = (AliITSRecoParam*) AliITSReconstructor::GetRecoParam();
94 repa = AliITSRecoParam::GetHighFluxParam();
95 AliWarning("Using default AliITSRecoParam class");
98 const TGeoHMatrix *mT2L=AliITSgeomTGeo::GetTracking2LocalMatrix(iModule);
100 if (repa->GetSPDRemoveNoisyFlag()) {
101 // Loop on noisy pixels and reset them
102 AliITSCalibrationSPD *cal =
103 (AliITSCalibrationSPD*) fDetTypeRec->GetCalibrationModel(iModule);
104 for(Int_t ipix = 0; ipix<cal->GetNrBad(); ipix++){
106 cal->GetBadPixel(ipix,row,col);
107 //PH printf(" module %d row %d col %d \n",iModule,row,col);
108 Int_t index = (row+1) * nzbins + (col+1);
111 bins[index].SetMask(0xFFFFFFFE);
115 if (repa->GetSPDRemoveDeadFlag()) {
116 // Loop on dead pixels and reset them
117 AliITSCalibrationSPD *cal =
118 (AliITSCalibrationSPD*) fDetTypeRec->GetSPDDeadModel(iModule);
119 if (cal->IsBad()) return 0; // if all ladder is dead, return to save time
120 for(Int_t ipix = 0; ipix<cal->GetNrBad(); ipix++){
122 cal->GetBadPixel(ipix,row,col);
123 Int_t index = (row+1) * nzbins + (col+1);
125 bins[index].SetMask(0xFFFFFFFE);
130 for(Int_t iBin =0; iBin < maxBins;iBin++){
131 if(bins[iBin].IsUsed()) continue;
134 FindCluster(iBin,nzbins,bins,nBins,idxBins);
136 Error("ClustersSPD","SPD Too big cluster !\n");
140 for(Int_t ilab=0;ilab<10;ilab++){
144 milab[3]=fNdet[iModule];
146 Int_t ymin,ymax,zmin,zmax;
148 ymin = (idxBins[0] / nzbins) - 1;
150 zmin = (idxBins[0] % nzbins) - 1;
154 AliITSdigitSPD* dig = (AliITSdigitSPD*)digits->UncheckedAt(idxBins[0]);
155 ymin=dig->GetCoord2();
157 zmin=dig->GetCoord1();
160 //PH if(iModule == 24 || iModule == 25) printf("\n");
161 for (Int_t idx = 0; idx < nBins; idx++) {
165 iy = (idxBins[idx] / nzbins) - 1;
166 iz = (idxBins[idx] % nzbins) - 1;
169 AliITSdigitSPD* dig = (AliITSdigitSPD*)digits->UncheckedAt(idxBins[idx]);
170 iy = dig->GetCoord2();
171 iz = dig->GetCoord1();
172 //if(iModule == 24 || iModule == 25) printf(" || iy %d iz %d in Module %d \n",iy,iz,iModule);
174 if (ymin > iy) ymin = iy;
175 if (ymax < iy) ymax = iy;
176 if (zmin > iz) zmin = iz;
177 if (zmax < iz) zmax = iz;
181 for(Int_t l=0;l<nBins;l++){
182 AliITSdigitSPD* dig = (AliITSdigitSPD*)digits->UncheckedAt(idxBins[l]);
183 for(Int_t dlab=0;dlab<10;dlab++){
184 Int_t digitlab = (dig->GetTracks())[dlab];
185 if(digitlab<0) continue;
186 AddLabel(milab,digitlab);
188 if (milab[9]>0) CheckLabels2(milab);
193 Int_t idy =0; //max 2 clusters
194 if((iModule <= fLastSPD1) &&idy<3) idy=3;
195 if((iModule > fLastSPD1) &&idy<4) idy=4;
198 // Switch the unfolding OFF/ON
199 if(!repa->GetUseUnfoldingInClusterFinderSPD()) {
204 for(Int_t iiz=zmin; iiz<=zmax;iiz+=idz){
205 for(Int_t iiy=ymin;iiy<=ymax;iiy+=idy){
208 Float_t y=0.,z=0.,q=0.;
209 for(Int_t idx=0;idx<nBins;idx++){
213 iy = (idxBins[idx] / nzbins)-1;
214 iz = (idxBins[idx] % nzbins)-1;
217 AliITSdigitSPD* dig = (AliITSdigitSPD*)digits->UncheckedAt(idxBins[idx]);
218 iy = dig->GetCoord2();
219 iz = dig->GetCoord1();
221 if(zmax-zmin>=idz || ymax-ymin>=idy){
222 if(TMath::Abs(iy-iiy)>0.75*idy) continue;
223 if(TMath::Abs(iz-iiz)>0.75*idz) continue;
227 if(rawdata) qBin = bins[idxBins[idx]].GetQ();
229 AliITSdigitSPD* dig = (AliITSdigitSPD*)digits->UncheckedAt(idxBins[idx]);
230 qBin = (Float_t)dig->GetSignal();
232 y+= qBin * fYSPD[iy];
233 z+= qBin * fZSPD[iz];
236 if(ndigits==0) continue;
243 Float_t hit[5]; //y,z,sigma(y)^2, sigma(z)^2, charge
245 Double_t loc[3]={y,0.,z},trk[3]={0.,0.,0.};
246 mT2L->MasterToLocal(loc,trk);
250 hit[2] = fYpitchSPD*fYpitchSPD/12.;
251 hit[3] = fZ1pitchSPD*fZ1pitchSPD/12.;
254 if(!rawdata) milab[3]=fNdet[iModule];
255 Int_t info[3] = {ymax-ymin+1,zmax-zmin+1,fNlayer[iModule]};
257 AliITSRecPoint cl(milab,hit,info);
259 fDetTypeRec->AddRecPoint(cl);
262 Int_t label[4]={milab[0],milab[1],milab[2],milab[3]};
263 AliITSRecPoint cl(label, hit,info);
265 new (clusters->AddrAt(nclu))
275 //__________________________________________________________________________
276 void AliITSClusterFinderV2SPD::FindClustersSPD(AliITSRawStreamSPD* input,
277 TClonesArray** clusters)
279 //------------------------------------------------------------
280 // SPD cluster finder for raw data (this method is called once per event)
281 // Now also fills fast-or fired map
282 //------------------------------------------------------------
284 Int_t nClustersSPD = 0;
285 Int_t kNzBins = fNzSPD + 2;
286 Int_t kNyBins = fNySPD + 2;
287 Int_t kMaxBin = kNzBins * kNyBins;
288 AliBin *binsSPD = new AliBin[kMaxBin];
289 AliBin *binsSPDInit = new AliBin[kMaxBin];
292 // read raw data input stream
294 Bool_t next = input->Next();
295 if (!next || input->IsNewModule()) {
296 Int_t iModule = input->GetPrevModuleID();
298 // when all data from a module was read, search for clusters
300 clusters[iModule] = new TClonesArray("AliITSRecPoint");
301 Int_t nClusters = ClustersSPD(bins,0,clusters[iModule],kMaxBin,kNzBins,iModule,kTRUE);
302 nClustersSPD += nClusters;
308 memcpy(binsSPD,binsSPDInit,sizeof(AliBin)*kMaxBin);
312 // fill the current digit into the bins array
313 Int_t index = (input->GetCoord2()+1) * kNzBins + (input->GetCoord1()+1);
314 bins[index].SetIndex(index);
316 bins[index].SetMask(1);
320 delete [] binsSPDInit;
323 // AliDebug(1,Form("found clusters in ITS SPD: %d", nClustersSPD));
324 Info("FindClustersSPD", "found clusters in ITS SPD: %d", nClustersSPD);
326 // Fill the FastOr fired map
327 for (UInt_t eq=0; eq<20; eq++) {
328 for (UInt_t hs=0; hs<6; hs++) {
329 for (UInt_t chip=0; chip<10; chip++) {
330 if (input->GetFastOrSignal(eq,hs,chip)) {
331 fDetTypeRec->SetFastOrFiredMapOnline(eq,hs,chip);
338 //__________________________________________________________________________
339 void AliITSClusterFinderV2SPD::FindClustersSPD(TClonesArray *digits) {
340 //------------------------------------------------------------
341 // SPD cluster finder for digits (this method is called for each module)
342 // Now also fills the fast-or fired map
343 //------------------------------------------------------------
346 Int_t kNzBins = fNzSPD + 2;
347 const Int_t kMAXBIN=kNzBins*(fNySPD+2);
349 Int_t ndigits=digits->GetEntriesFast();
350 AliBin *bins=new AliBin[kMAXBIN];
353 AliITSdigitSPD *digit=0;
354 for (idig=0; idig<ndigits; idig++) {
355 digit=(AliITSdigitSPD*)digits->UncheckedAt(idig);
356 Int_t i=digit->GetCoord2()+1; //y
357 Int_t j=digit->GetCoord1()+1;
358 Int_t index=i*kNzBins+j;
360 bins[index].SetIndex(idig);
362 bins[index].SetMask(1);
366 Int_t nClustersSPD = ClustersSPD(bins,digits,0,kMAXBIN,kNzBins,fModule,kFALSE);
369 AliDebug(1,Form("found clusters in ITS SPD: %d", nClustersSPD));
371 // Fill the FastOr fired map
372 AliITSFOSignalsSPD* foSignals = fDetTypeRec->GetFOSignals();
374 UInt_t eq = AliITSRawStreamSPD::GetOnlineEqIdFromOffline(fModule);
375 UInt_t hs = AliITSRawStreamSPD::GetOnlineHSFromOffline(fModule);
376 for(UInt_t ch=0; ch<5; ch++) {
377 UInt_t chip = AliITSRawStreamSPD::GetOnlineChipFromOffline(fModule,ch*32);
378 if (foSignals->GetSignal(eq,hs,chip)) {
379 fDetTypeRec->SetFastOrFiredMapOnline(eq,hs,chip);