#include "AliITSgeom.h"
#include "AliITSRecPoint.h"
#include "AliITSclusterV2.h"
- #include "AliITSsimulationFastPoints.h"
#include "TFile.h"
#include "TTree.h"
#include "TParticle.h"
#endif
-Int_t AliITSFindClustersV2() {
+Int_t AliITSFindClustersV2(Char_t SlowOrFast='f') {
/****************************************************************
- * Just something to start with *
+ * This macro converts AliITSRecPoint(s) to AliITSclusterV2(s) *
****************************************************************/
- cerr<<"Looking for clusters...\n";
+ cerr<<"AliITSRecPoint(s) -> AliITSclusterV2(s)...\n";
if (gAlice) {delete gAlice; gAlice=0;}
- TFile *in=TFile::Open("galice.root","update");
- if (!in->IsOpen()) {
- cerr<<"Can't open galice.root !\n";
- return 1;
- }
-
- if (!(gAlice=(AliRun*)in->Get("gAlice"))) {
- cerr<<"Can't find gAlice !\n";
- return 2;
- }
-
- Int_t ev=0;
- gAlice->GetEvent(ev);
-
- AliITS *ITS = (AliITS*)gAlice->GetModule("ITS");
- if (!ITS) {
- cerr<<"Can't find the ITS !\n";
- return 3;
- }
-
- gAlice->MakeTree("R"); ITS->MakeBranch("R",0);
-//////////////// Taken from ITSHitsToFastPoints.C ///////////////////////
- ITS->SetSimulationModel(0,new AliITSsimulationFastPoints());
- ITS->SetSimulationModel(1,new AliITSsimulationFastPoints());
- ITS->SetSimulationModel(2,new AliITSsimulationFastPoints());
- Int_t nsignal=25;
- Int_t size=-1;
- Int_t bgr_ev=Int_t(ev/nsignal);
- ITS->HitsToFastRecPoints(ev,bgr_ev,size," ","All"," ");
-//////////////////////////////////////////////////////////////////////////
-
- delete gAlice; gAlice=0;
- in->Close();
-
-///////////////// Conversion AliITSRecPoint -> AliITSclusterV2 //////////////
- /*TFile */in=TFile::Open("galice.root");
-
- if (gAlice) {delete gAlice; gAlice=0;}
+ TFile *in=TFile::Open("galice.root");
+ if (!in->IsOpen()) { cerr<<"Can't open galice.root !\n"; return 1; }
if (!(gAlice=(AliRun*)in->Get("gAlice"))) {
cerr<<"Can't find gAlice !\n";
- return 4;
+ return 2;
}
-
gAlice->GetEvent(0);
- /*AliITS */ITS = (AliITS*)gAlice->GetModule("ITS");
- if (!ITS) {
- cerr<<"Can't find the ITS !\n";
- return 5;
- }
+ AliITS *ITS = (AliITS*)gAlice->GetModule("ITS");
+ if (!ITS) { cerr<<"Can't find the ITS !\n"; return 3; }
AliITSgeom *geom=ITS->GetITSgeom();
TFile *out=TFile::Open("AliITSclustersV2.root","new");
if (!out->IsOpen()) {
cerr<<"Delete old AliITSclustersV2.root !\n";
- return 6;
+ return 4;
}
geom->Write();
TClonesArray *clusters=new TClonesArray("AliITSclusterV2",10000);
- //TTree *cTree=new TTree("cTree","ITS clusters");
TTree *cTree=new TTree("TreeC_ITS_0","ITS clusters");
cTree->Branch("Clusters",&clusters);
TTree *pTree=gAlice->TreeR();
- if (!pTree) {
- cerr<<"Can't get TreeR !\n";
- return 7;
+ if (!pTree) { cerr<<"Can't get TreeR !\n"; return 5; }
+ TBranch *branch = 0;
+ if (SlowOrFast=='f') {
+ branch = pTree->GetBranch("ITSRecPointsF");
}
- TBranch *branch=pTree->GetBranch("ITSRecPoints");
- if (!branch) {
- cerr<<"Can't get ITSRecPoints branch !\n";
- return 8;
+ else {
+ branch = pTree->GetBranch("ITSRecPoints");
}
+ 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)pTree->GetEntries();
+ 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 ?
+ Float_t * lp = new Float_t[5];
+ Int_t * lab = new Int_t[6];
+
for (Int_t i=0; i<nentr; i++) {
points->Clear();
- pTree->GetEvent(i);
+ 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 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];
+ //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();
- Int_t lab[6];
+ 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];
- 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";
+ 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);
}
cerr<<"Number of clusters: "<<nclusters<<endl;
+ delete [] lp;
+ delete [] lab;
+
delete cTree; delete clusters; delete points;
delete gAlice; gAlice=0;