- if (!branch) { cerr<<"Can't get ITSRecPoints branch !\n"; return 6; }
- TClonesArray *points=new TClonesArray("AliITSRecPoint",10000);
- branch->SetAddress(&points);
-
- TClonesArray &cl=*clusters;
- Int_t nclusters=0;
- Int_t nentr=(Int_t)branch->GetEntries();
-
- cerr<<"Number of entries: "<<nentr<<endl;
-
- Float_t lp[5]; Int_t lab[6]; //Why can't it be inside a loop ?
-
- for (Int_t i=0; i<nentr; i++) {
- points->Clear();
- branch->GetEvent(i);
- Int_t ncl=points->GetEntriesFast(); if (ncl==0){cTree->Fill();continue;}
- Int_t lay,lad,det; geom->GetModuleId(i,lay,lad,det);
- Float_t x,y,zshift; geom->GetTrans(lay,lad,det,x,y,zshift);
- Double_t rot[9]; geom->GetRotMatrix(lay,lad,det,rot);
- Double_t yshift = x*rot[0] + y*rot[1];
- Int_t ndet=(lad-1)*geom->GetNdetectors(lay) + (det-1);
- nclusters+=ncl;
-
- Float_t kmip=1; // ADC->mip normalization factor for the SDD and SSD
- if(lay==4 || lay==3){kmip=280.;};
- if(lay==6 || lay==5){kmip=38.;};
-
- for (Int_t j=0; j<ncl; j++) {
- AliITSRecPoint *p=(AliITSRecPoint*)points->UncheckedAt(j);
- //Float_t lp[5];
- lp[0]=-p->GetX()-yshift; if (lay==1) lp[0]=-lp[0];
- lp[1]=p->GetZ()+zshift;
- lp[2]=p->GetSigmaX2();
- lp[3]=p->GetSigmaZ2();
- lp[4]=p->GetQ(); lp[4]/=kmip;
- //Int_t lab[6];
- lab[0]=p->GetLabel(0);lab[1]=p->GetLabel(1);lab[2]=p->GetLabel(2);
- lab[3]=ndet;
-
- Int_t label=lab[0];
- if (label>=0) {
- TParticle *part=(TParticle*)gAlice->Particle(label);
- label=-3;
- while (part->P() < 0.005) {
- Int_t m=part->GetFirstMother();
- if (m<0) {cerr<<"Primary momentum: "<<part->P()<<endl; break;}
- label=m;
- part=(TParticle*)gAlice->Particle(label);
- }
- if (lab[1]<0) lab[1]=label;
- else if (lab[2]<0) lab[2]=label;
- else cerr<<"No empty labels !\n";
- }
-
- new(cl[j]) AliITSclusterV2(lab,lp);
- }
- cTree->Fill(); clusters->Delete();
- points->Delete();