+++ /dev/null
-/****************************************************************************
- * This macro is supposed to do reconstruction in the barrel ALICE trackers *
- * (Make sure you have TPC digits and ITS hits before using this macro !!!) *
- * It does the following steps (April 12, 2001): *
- * 1) TPC cluster finding *
- * 2) TPC track finding *
- * 3) ITS cluster finding V2 (via fast points !) *
- * 4) ITS track finding V2 *
- * 5) ITS back track propagation V2 *
- * 6) TPC back track propagation *
- * (Origin: I.Belikov, CERN, Jouri.Belikov@cern.ch) *
- ****************************************************************************/
-
-#ifndef __CINT__
- #include "alles.h"
- #include "AliMagF.h"
- #include "AliTPCtracker.h"
-
- #include "AliITS.h"
- #include "AliITSgeom.h"
- #include "AliITSRecPoint.h"
- #include "AliITSclusterV2.h"
- #include "AliITSsimulationFastPoints.h"
- #include "AliITStrackerV2.h"
-#endif
-
-Int_t TPCFindClusters(const Char_t *inname, const Char_t *outname);
-Int_t TPCFindTracks(const Char_t *inname, const Char_t *outname);
-Int_t TPCSortTracks(const Char_t *inname, const Char_t *outname);
-Int_t TPCPropagateBack(const Char_t *inname, const Char_t *outname);
-
-Int_t ITSFindClusters(const Char_t *inname, const Char_t *outname);
-Int_t ITSFindTracks(const Char_t *inname, const Char_t *outname);
-Int_t ITSPropagateBack(const Char_t *inname, const Char_t *outname);
-
-
-Int_t AliTPCtracknew() {
- const Char_t *TPCdigName="galice.root";
- const Char_t *TPCclsName="AliTPCclusters.root";
- const Char_t *TPCtrkName="AliTPCtracks.root";
-
- const Char_t *ITSdigName="galice.root";
- const Char_t *ITSclsName="AliITSclustersV2.root";
- const Char_t *ITStrkName="AliITStracksV2.root";
-
- AliKalmanTrack::SetConvConst(100/0.299792458/0.2/gAlice->Field()->Factor());
- // AliKalmanTrack::SetConvConst(100/0.299792458/0.2/2);
-// ********** Find TPC clusters *********** //
- if (TPCFindClusters(TPCdigName,TPCclsName)) {
- cerr<<"Failed to get TPC clusters !\n";
- return 1;
- }
-
-// ********** Find TPC tracks *********** //
- if (TPCFindTracks(TPCclsName,TPCtrkName)) {
- cerr<<"Failed to get TPC tracks !\n";
- return 1;
- }
-
-// ********** Sort and label TPC tracks *********** //
- if (TPCSortTracks(TPCclsName,TPCtrkName)) {
- cerr<<"Failed to sort TPC tracks !\n";
- return 1;
- }
-/*
-// ********** Find ITS clusters *********** //
- if (ITSFindClusters(ITSdigName,ITSclsName)) {
- cerr<<"Failed to get ITS clusters !\n";
- return 1;
- }
-
-// ********** Find ITS tracks *********** //
- {TFile *clsFile=TFile::Open(ITSclsName);
- if (ITSFindTracks(TPCtrkName,ITStrkName)) {
- cerr<<"Failed to get ITS tracks !\n";
- return 1;
- }
- clsFile->Close();}
-
-// ********** Back propagation of the ITS tracks *********** //
- {TFile *clsFile=TFile::Open(ITSclsName);
- if (ITSPropagateBack(ITStrkName,TPCtrkName)) {
- cerr<<"Failed to propagate back the ITS tracks !\n";
- return 1;
- }
- clsFile->Close();}
-
-
-// ********** Back propagation of the TPC tracks *********** //
- {TFile *clsFile=TFile::Open(TPCclsName);
- if (TPCPropagateBack(TPCtrkName,TPCtrkName)) {
- cerr<<"Failed to propagate back the TPC tracks !\n";
- return 1;
- }
- clsFile->Close();}
-*/
- return 0;
-}
-
-
-Int_t TPCFindClusters(const Char_t *inname, const Char_t *outname) {
- Int_t rc=0;
- const Char_t *name="TPCFindClusters";
- cerr<<'\n'<<name<<"...\n";
- gBenchmark->Start(name);
-
- TFile *out=TFile::Open(outname,"recreate");
- TFile *in =TFile::Open(inname);
-
- AliTPCParam *param=(AliTPCParam *)in->Get("75x40_100x60");
- if (!param) {cerr<<"TPC parameters have not been found !\n"; return 1;}
- AliTPCv2 tpc;
- tpc.SetParam(param);
-
- tpc.Digits2Clusters(out);
-
- in->Close();
- out->Close();
- gBenchmark->Stop(name);
- gBenchmark->Show(name);
-
- return rc;
-}
-
-Int_t TPCFindTracks(const Char_t *inname, const Char_t *outname) {
- Int_t rc=0;
- const Char_t *name="TPCFindTracks";
- cerr<<'\n'<<name<<"...\n";
- gBenchmark->Start(name);
- TFile *out=TFile::Open(outname,"recreate");
- TFile *in =TFile::Open(inname);
- AliTPCParam *param=(AliTPCParam *)in->Get("75x40_100x60");
- if (!param) {cerr<<"TPC parameters have not been found !\n"; return 1;}
-
- AliTPCtracker *tracker=new AliTPCtracker(param);
- rc=tracker->Clusters2Tracks(0,out);
- delete tracker;
-
- in->Close();
- out->Close();
- gBenchmark->Stop(name);
- gBenchmark->Show(name);
-
- return rc;
-}
-
-Int_t TPCSortTracks(const Char_t *inname, const Char_t *outname) {
- Int_t rc=0;
- const Char_t *name="TPCSortTracks";
- cerr<<'\n'<<name<<"...\n";
- gBenchmark->Start(name);
-
- TFile *out=TFile::Open(outname);
- TFile *in =TFile::Open(inname);
- AliTPCParam *param=(AliTPCParam *)in->Get("75x40_100x60");
- if (!param) {cerr<<"TPC parameters have not been found !\n"; return 1;}
-
- TObjArray tarray(10000);
- AliTPCtrack *iotrack=0;
- Int_t i;
-
- out->cd();
- TTree *tracktree=(TTree*)out->Get("TPCf");
- TBranch *tbranch=tracktree->GetBranch("tracks");
- Int_t nentr=(Int_t)tracktree->GetEntries();
- for (i=0; i<nentr; i++) {
- iotrack=new AliTPCtrack;
- tbranch->SetAddress(&iotrack);
- tracktree->GetEvent(i);
- tarray.AddLast(iotrack);
- }
- tarray.Sort();
- out->Close();
-
- //assign thacks GEANT labels
- in->cd();
- AliTPCtracker *tracker = new AliTPCtracker(param);
- tracker->LoadInnerSectors();
- tracker->LoadOuterSectors();
- for (i=0; i<nentr; i++) {
- iotrack=(AliTPCtrack*)tarray.UncheckedAt(i);
- tracker->CookLabel(iotrack,0.1);
- }
- delete tracker;
- in->Close();
- //end of GEANT label assignment
-
- out=TFile::Open(outname,"recreate");
- tracktree=new TTree("TPCf","Tree with TPC tracks");
- tracktree->Branch("tracks","AliTPCtrack",&iotrack,32000,0);
- for (i=0; i<nentr; i++) {
- iotrack=(AliTPCtrack*)tarray.UncheckedAt(i);
- tracktree->Fill();
- }
- tracktree->Write();
- out->Close();
-
- gBenchmark->Stop(name);
- gBenchmark->Show(name);
-
- return rc;
-}
-
-Int_t ITSFindClusters(const Char_t *inname, const Char_t *outname) {
- Int_t rc=0;
- const Char_t *name="ITSFindClusters";
- cerr<<'\n'<<name<<"...\n";
- gBenchmark->Start(name);
- TFile *out=TFile::Open(outname,"recreate");
- TFile *in =TFile::Open(inname,"update");
-
- if (!(gAlice=(AliRun*)in->Get("gAlice"))) {
- cerr<<"Can't get gAlice !\n";
- return 1;
- }
- Int_t ev=0;
- gAlice->GetEvent(ev);
- AliITS *ITS = (AliITS*)gAlice->GetModule("ITS");
- if (!ITS) { cerr<<"Can't get the ITS !\n"; return 1;}
-
- gAlice->MakeTree("R"); ITS->MakeBranch("R",0);
- //////////////// Taken from ITSHitsToFastPoints.C ///////////////////////
- AliITSsimulationFastPoints *sim = new AliITSsimulationFastPoints();
- for (Int_t i=0;i<3;i++) { ITS->SetSimulationModel(i,sim); }
- Int_t nsignal=25;
- Int_t size=-1;
- Int_t bgr_ev=Int_t(ev/nsignal);
- ITS->HitsToFastRecPoints(ev,bgr_ev,size," ","All"," ");
- //////////////////////////////////////////////////////////////////////////
-
- gAlice->GetEvent(ev);
-
- AliITSgeom *geom=ITS->GetITSgeom();
- out->cd();
- geom->Write();
-
- TClonesArray *clusters=new TClonesArray("AliITSclusterV2",10000);
- TTree *cTree=new TTree("cTree","ITS clusters");
- cTree->Branch("Clusters",&clusters);
-
- TTree *pTree=gAlice->TreeR();
- if (!pTree) { cerr<<"Can't get TreeR !\n"; return 1; }
- TBranch *branch=pTree->GetBranch("ITSRecPoints");
- if (!branch) { cerr<<"Can't get ITSRecPoints branch !\n"; return 1;}
- TClonesArray *points=new TClonesArray("AliITSRecPoint",10000);
- branch->SetAddress(&points);
-
- TClonesArray &cl=*clusters;
- Int_t nclusters=0;
- Int_t nentr=(Int_t)pTree->GetEntries();
- for (Int_t i=0; i<nentr; i++) {
- if (!pTree->GetEvent(i)) {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);
- Int_t ncl=points->GetEntriesFast();
- nclusters+=ncl;
- 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();
- 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";
-
- new(cl[j]) AliITSclusterV2(lab,lp);
- }
- cTree->Fill(); clusters->Delete();
- points->Delete();
- }
- cTree->Write();
- cerr<<"Number of clusters: "<<nclusters<<endl;
-
- delete cTree; delete clusters; delete points;
-
- delete gAlice; gAlice=0;
- in->Close();
- out->Close();
- gBenchmark->Stop(name);
- gBenchmark->Show(name);
-
- return rc;
-}
-
-Int_t ITSFindTracks(const Char_t *inname, const Char_t *outname) {
- Int_t rc=0;
- const Char_t *name="ITSFindTracks";
- cerr<<'\n'<<name<<"...\n";
- gBenchmark->Start(name);
-
- AliITSgeom *geom=(AliITSgeom*)gFile->Get("AliITSgeom");
- if (!geom) { cerr<<"can't get ITS geometry !\n"; return 1;}
- AliITStrackerV2 tracker(geom);
-
- TFile *out=TFile::Open(outname,"recreate");
- TFile *in =TFile::Open(inname);
- rc=tracker.Clusters2Tracks(in,out);
- in->Close();
- out->Close();
-
- gBenchmark->Stop(name);
- gBenchmark->Show(name);
-
- return rc;
-}
-
-Int_t ITSPropagateBack(const Char_t *inname, const Char_t *outname) {
- Int_t rc=0;
- const Char_t *name="ITSPropagateBack";
- cerr<<'\n'<<name<<"...\n";
- gBenchmark->Start(name);
-
- AliITSgeom *geom=(AliITSgeom*)gFile->Get("AliITSgeom");
- if (!geom) { cerr<<"can't get ITS geometry !\n"; return 1;}
- AliITStrackerV2 tracker(geom);
-
- TFile *out=TFile::Open(outname,"update");
- TFile *in =TFile::Open(inname);
- rc=tracker.PropagateBack(in,out);
- in->Close();
- out->Close();
-
- gBenchmark->Stop(name);
- gBenchmark->Show(name);
-
- return rc;
-}
-
-Int_t TPCPropagateBack(const Char_t *inname, const Char_t *outname) {
- Int_t rc=0;
- const Char_t *name="TPCPropagateBack";
- cerr<<'\n'<<name<<"...\n";
- gBenchmark->Start(name);
-
- AliTPCParam *param=(AliTPCParam *)gFile->Get("75x40_100x60");
- if (!param) {cerr<<"TPC parameters have not been found !\n"; return 1;}
- AliTPCtracker *tracker=new AliTPCtracker(param);
-
- TFile *out=TFile::Open(outname,"update");
- TFile *in =TFile::Open(inname);
- rc=tracker->PropagateBack(in,out);
- delete tracker;
- in->Close();
- out->Close();
-
- gBenchmark->Stop(name);
- gBenchmark->Show(name);
-
- return rc;
-}
-
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