* *
* Creates list of "trackable" tracks, *
* calculates efficiency, resolutions etc. *
+ * There is a possibility to run this macro over several events. *
* *
* Origin: I.Belikov, CERN, Jouri.Belikov@cern.ch *
* with several nice improvements by: M.Ivanov, GSI, m.ivanov@gsi.de *
****************************************************************************/
-#ifndef __CINT__
- #include "alles.h"
- #include "AliTPCtracker.h"
- #include <AliMagF.h>
+#if !defined(__CINT__) || defined(__MAKECINT__)
+ #include <TMath.h>
+ #include <TError.h>
+ #include <Riostream.h>
+ #include <TH1F.h>
+ #include <TH2F.h>
+ #include <TTree.h>
+ #include <TParticle.h>
+ #include <TCanvas.h>
+ #include <TLine.h>
+ #include <TText.h>
+ #include <TBenchmark.h>
+ #include <TStyle.h>
+ #include <TFile.h>
+ #include <TROOT.h>
+
+ #include "AliStack.h"
+ #include "AliHeader.h"
+ #include "AliTrackReference.h"
+ #include "AliRunLoader.h"
+ #include "AliRun.h"
+ #include "AliESDEvent.h"
+ #include "AliESDtrack.h"
+
+ #include "AliSimDigits.h"
+ #include "AliTPC.h"
+ #include "AliTPCParamSR.h"
+ #include "AliTPCClustersArray.h"
+ #include "AliTPCClustersRow.h"
+ #include "AliTPCcluster.h"
+ #include "AliTPCLoader.h"
#endif
-struct GoodTrackTPC {
- Int_t lab;
- Int_t code;
- Float_t px,py,pz;
- Float_t x,y,z;
-};
+Int_t GoodTracksTPC(const Char_t *dir=".");
-Int_t AliTPCComparison(Int_t event=0) {
+extern AliRun *gAlice;
+extern TBenchmark *gBenchmark;
+extern TROOT *gROOT;
- cerr<<"Doing comparison...\n";
- AliKalmanTrack::SetConvConst(1000/0.299792458/gAlice->Field()->SolenoidField());
- const Int_t MAX=20000;
- Int_t good_tracks_tpc(GoodTrackTPC *gt, const Int_t max, const Int_t event);
+static Int_t allgood=0;
+static Int_t allselected=0;
+static Int_t allfound=0;
+Int_t AliTPCComparison
+(Float_t ptcutl=0.2, Float_t ptcuth=10., const Char_t *dir=".") {
gBenchmark->Start("AliTPCComparison");
- Int_t nentr=0,i=0; TObjArray tarray(MAX);
- { /*Load tracks*/
- TFile *tf=TFile::Open("AliTPCtracks.root");
- if (!tf->IsOpen()) {cerr<<"Can't open AliTPCtracks.root !\n"; return 3;}
-
- char tname[100]; sprintf(tname,"TreeT_TPC_%d",event);
- TTree *tracktree=(TTree*)tf->Get(tname);
- if (!tracktree) {cerr<<"Can't get a tree with TPC tracks !\n"; return 4;}
-
- TBranch *tbranch=tracktree->GetBranch("tracks");
- nentr=(Int_t)tracktree->GetEntries();
- AliTPCtrack *iotrack=0;
- for (i=0; i<nentr; i++) {
- iotrack=new AliTPCtrack;
- tbranch->SetAddress(&iotrack);
- tracktree->GetEvent(i);
- tarray.AddLast(iotrack);
- }
- delete tracktree; //Thanks to Mariana Bondila
- tf->Close();
- }
+ ::Info("AliTPCComparison.C","Doing comparison...");
- /* Generate a list of "good" tracks */
- GoodTrackTPC gt[MAX];
- Int_t ngood=0;
- ifstream in("good_tracks_tpc");
- if (in) {
- cerr<<"Reading good tracks...\n";
- while (in>>gt[ngood].lab>>gt[ngood].code>>
- gt[ngood].px>>gt[ngood].py>>gt[ngood].pz>>
- gt[ngood].x >>gt[ngood].y >>gt[ngood].z) {
- ngood++;
- cerr<<ngood<<'\r';
- if (ngood==MAX) {
- cerr<<"Too many good tracks !\n";
- break;
- }
- }
- if (!in.eof()) cerr<<"Read error (good_tracks_tpc) !\n";
- } else {
- cerr<<"Marking good tracks (this will take a while)...\n";
- ngood=good_tracks_tpc(gt,MAX, event);
- ofstream out("good_tracks_tpc");
- if (out) {
- for (Int_t ngd=0; ngd<ngood; ngd++)
- out<<gt[ngd].lab<<' '<<gt[ngd].code<<' '<<
- gt[ngd].px<<' '<<gt[ngd].py<<' '<<gt[ngd].pz<<' '<<
- gt[ngd].x <<' '<<gt[ngd].y <<' '<<gt[ngd].z <<endl;
- } else cerr<<"Can not open file (good_tracks_tpc) !\n";
- out.close();
- }
+ TH1F *hp=(TH1F*)gROOT->FindObject("hp");
+ if (!hp) hp=new TH1F("hp","PHI resolution",50,-20.,20.);
+ hp->SetFillColor(4);
- TH1F *hp=new TH1F("hp","PHI resolution",50,-20.,20.); hp->SetFillColor(4);
- TH1F *hl=new TH1F("hl","LAMBDA resolution",50,-20,20);hl->SetFillColor(4);
- TH1F *hpt=new TH1F("hpt","Relative Pt resolution",30,-10.,10.);
- hpt->SetFillColor(2);
- TH1F *hmpt=new TH1F("hmpt","Relative Pt resolution (pt>4GeV/c)",30,-60,60);
+ TH1F *hl=(TH1F*)gROOT->FindObject("hl");
+ if (!hl) hl=new TH1F("hl","LAMBDA resolution",50,-20,20);
+ hl->SetFillColor(4);
+
+ TH1F *hpt=(TH1F*)gROOT->FindObject("hpt");
+ if (!hpt) hpt=new TH1F("hpt","Relative Pt resolution",30,-10.,10.);
+ hpt->SetFillColor(2);
+
+ TH1F *hmpt=(TH1F*)gROOT->FindObject("hmpt");
+ if (!hmpt)
+ hmpt=new TH1F("hmpt","Relative Pt resolution (pt>4GeV/c)",30,-60,60);
hmpt->SetFillColor(6);
- TH1F *hgood=new TH1F("hgood","Good tracks",30,0.1,6.1);
- TH1F *hfound=new TH1F("hfound","Found tracks",30,0.1,6.1);
- TH1F *hfake=new TH1F("hfake","Fake tracks",30,0.1,6.1);
- TH1F *hg=new TH1F("hg","",30,0.1,6.1); //efficiency for good tracks
+
+
+ TH1F *hgood=(TH1F*)gROOT->FindObject("hgood");
+ if (!hgood) hgood=new TH1F("hgood","Good tracks",30,0.2,6.1);
+
+ TH1F *hfound=(TH1F*)gROOT->FindObject("hfound");
+ if (!hfound) hfound=new TH1F("hfound","Found tracks",30,0.2,6.1);
+
+ TH1F *hfake=(TH1F*)gROOT->FindObject("hfake");
+ if (!hfake) hfake=new TH1F("hfake","Fake tracks",30,0.2,6.1);
+
+ TH1F *hg=(TH1F*)gROOT->FindObject("hg");
+ if (!hg) hg=new TH1F("hg","Efficiency for good tracks",30,0.2,6.1);
hg->SetLineColor(4); hg->SetLineWidth(2);
- TH1F *hf=new TH1F("hf","Efficiency for fake tracks",30,0.1,6.1);
+
+ TH1F *hf=(TH1F*)gROOT->FindObject("hf");
+ if (!hf) hf=new TH1F("hf","Efficiency for fake tracks",30,0.2,6.1);
hf->SetFillColor(1); hf->SetFillStyle(3013); hf->SetLineWidth(2);
- TH1F *he =new TH1F("he","dE/dX for pions with 0.4<p<0.5 GeV/c",50,0.,100.);
- TH2F *hep=new TH2F("hep","dE/dX vs momentum",50,0.,2.,50,0.,400.);
+ TH1F *he=(TH1F*)gROOT->FindObject("he");
+ if (!he)
+ he =new TH1F("he","dE/dX for pions with 0.4<p<0.5 GeV/c",50,0.,100.);
+
+ TH2F *hep=(TH2F*)gROOT->FindObject("hep");
+ if (!hep) hep=new TH2F("hep","dE/dX vs momentum",50,0.,2.,50,0.,400.);
hep->SetMarkerStyle(8);
hep->SetMarkerSize(0.4);
- //MI change
- Int_t mingood=ngood;
- Int_t track_notfound[MAX], itrack_notfound=0;
- Int_t track_fake[MAX], itrack_fake=0;
- Int_t track_multifound[MAX], track_multifound_n[MAX], itrack_multifound=0;
- while (ngood--) {
- Int_t lab=gt[ngood].lab,tlab=-1;
- Float_t ptg=
- TMath::Sqrt(gt[ngood].px*gt[ngood].px + gt[ngood].py*gt[ngood].py);
+ Char_t fname[100];
+ sprintf(fname,"%s/GoodTracksTPC.root",dir);
- if (ptg<1e-33) continue; // for those not crossing 0 pad row
+ TFile *refFile=TFile::Open(fname,"old");
+ if (!refFile || !refFile->IsOpen()) {
+ ::Info("AliTPCComparison.C","Marking good tracks (will take a while)...");
+ if (GoodTracksTPC(dir)) {
+ ::Error("AliTPCComparison.C","Can't generate the reference file !");
+ return 1;
+ }
+ }
+ refFile=TFile::Open(fname,"old");
+ if (!refFile || !refFile->IsOpen()) {
+ ::Error("AliTPCComparison.C","Can't open the reference file !");
+ return 2;
+ }
+
+ TTree *tpcTree=(TTree*)refFile->Get("tpcTree");
+ if (!tpcTree) {
+ ::Error("AliTPCComparison.C","Can't get the reference tree !");
+ return 3;
+ }
+ TBranch *branch=tpcTree->GetBranch("TPC");
+ if (!branch) {
+ ::Error("AliTPCComparison.C","Can't get the TPC branch !");
+ return 4;
+ }
+ TClonesArray dummy("AliTrackReference",1000), *refs=&dummy;
+ branch->SetAddress(&refs);
+
+
+ sprintf(fname,"%s/AliESDs.root",dir);
+ TFile *ef=TFile::Open(fname);
+ if ((!ef)||(!ef->IsOpen())) {
+ sprintf(fname,"%s/AliESDtpc.root",dir);
+ ef=TFile::Open(fname);
+ if ((!ef)||(!ef->IsOpen())) {
+ ::Error("AliTPCComparison.C","Can't open AliESDtpc.root !");
+ return 5;
+ }
+ }
+ AliESDEvent* event = new AliESDEvent();
+ TTree* esdTree = (TTree*) ef->Get("esdTree");
+ if (!esdTree) {
+ ::Error("AliTPCComparison.C", "no ESD tree found");
+ return 6;
+ }
+ event->ReadFromTree(esdTree);
- hgood->Fill(ptg);
- AliTPCtrack *track=0;
- for (i=0; i<nentr; i++) {
- track=(AliTPCtrack*)tarray.UncheckedAt(i);
- tlab=track->GetLabel();
- if (lab==TMath::Abs(tlab)) break;
- }
- if (i==nentr) {
- track_notfound[itrack_notfound++]=lab;
- continue;
- }
-
- //MI change - addition
- Int_t micount=0;
- Int_t mi;
- AliTPCtrack * mitrack;
- for (mi=0; mi<nentr; mi++) {
- mitrack=(AliTPCtrack*)tarray.UncheckedAt(mi);
- if (lab==TMath::Abs(mitrack->GetLabel())) micount++;
- }
- if (micount>1) {
- track_multifound[itrack_multifound]=lab;
- track_multifound_n[itrack_multifound]=micount;
- itrack_multifound++;
- }
-
- Double_t xk=gt[ngood].x;
- track->PropagateTo(xk);
+ //******* Loop over events *********
+ Int_t e=0;
+ while (esdTree->GetEvent(e)) {
+ cout<<endl<<endl<<"********* Processing event number: "<<e<<"*******\n";
+
+ Int_t nentr=event->GetNumberOfTracks();
+ allfound+=nentr;
- if (lab==tlab) hfound->Fill(ptg);
- else {
- track_fake[itrack_fake++]=lab;
- hfake->Fill(ptg);
+ if (tpcTree->GetEvent(e++)==0) {
+ cerr<<"No reconstructable tracks !\n";
+ continue;
}
- Double_t par[5]; track->GetExternalParameters(xk,par);
- Float_t phi=TMath::ASin(par[2]) + track->GetAlpha();
- if (phi<-TMath::Pi()) phi+=2*TMath::Pi();
- if (phi>=TMath::Pi()) phi-=2*TMath::Pi();
- Float_t lam=TMath::ATan(par[3]);
- Float_t pt_1=TMath::Abs(par[4]);
+ Int_t ngood=refs->GetEntriesFast();
+ allgood+=ngood;
+
+ const Int_t MAX=15000;
+ //MI change
+ Int_t track_notfound[MAX], itrack_notfound=0;
+ Int_t track_fake[MAX], itrack_fake=0;
+ Int_t track_multifound[MAX],track_multifound_n[MAX],itrack_multifound=0;
+
+ Int_t i;
+ for (Int_t k=0; k<ngood; k++) {
+ AliTrackReference *ref=(AliTrackReference*)refs->UncheckedAt(k);
+ Int_t lab=ref->Label(), tlab=-1;
+ Float_t ptg=TMath::Sqrt(ref->Px()*ref->Px() + ref->Py()*ref->Py());
+
+ if (ptg<1e-33) continue; // for those not crossing 0 pad row
+
+ if (ptg<ptcutl) continue;
+ if (ptg>ptcuth) continue;
- if (TMath::Abs(gt[ngood].code)==11 && ptg>4.) {
- hmpt->Fill((pt_1 - 1/ptg)/(1/ptg)*100.);
- } else {
- Float_t phig=TMath::ATan2(gt[ngood].py,gt[ngood].px);
- hp->Fill((phi - phig)*1000.);
+ allselected++;
- Float_t lamg=TMath::ATan2(gt[ngood].pz,ptg);
- hl->Fill((lam - lamg)*1000.);
+ hgood->Fill(ptg);
+
+ AliESDtrack *track=0;
+ for (i=0; i<nentr; i++) {
+ track=event->GetTrack(i);
+ tlab=track->GetTPCLabel();
+ if (lab==TMath::Abs(tlab)) break;
+ }
+ if (i==nentr) {
+ track_notfound[itrack_notfound++]=lab;
+ continue;
+ }
+
+ //MI change - addition
+ Int_t micount=0;
+ Int_t mi;
+ AliESDtrack * mitrack;
+ for (mi=0; mi<nentr; mi++) {
+ mitrack=event->GetTrack(mi);
+ if (lab==TMath::Abs(mitrack->GetTPCLabel())) micount++;
+ }
+ if (micount>1) {
+ track_multifound[itrack_multifound]=lab;
+ track_multifound_n[itrack_multifound]=micount;
+ itrack_multifound++;
+ }
+ if ((track->GetStatus()&AliESDtrack::kTPCrefit)==0) continue;
+ if (lab==tlab) hfound->Fill(ptg);
+ else {
+ track_fake[itrack_fake++]=lab;
+ hfake->Fill(ptg);
+ }
+
+ Double_t pxpypz[3]; track->GetInnerPxPyPz(pxpypz);
+ Float_t phi=TMath::ATan2(pxpypz[1],pxpypz[0]);
+ if (phi<-TMath::Pi()) phi+=2*TMath::Pi();
+ if (phi>=TMath::Pi()) phi-=2*TMath::Pi();
+ Double_t pt=TMath::Sqrt(pxpypz[0]*pxpypz[0]+pxpypz[1]*pxpypz[1]);
+ Float_t lam=TMath::ATan2(pxpypz[2],pt);
+ Float_t pt_1=1/pt;
+
+ Int_t pdg=(Int_t)ref->GetLength(); //this is particle's PDG !
+
+ if (TMath::Abs(pdg)==11 && ptg>4.) {//high momentum electrons
+ hmpt->Fill((pt_1 - 1/ptg)/(1/ptg)*100.);
+ } else {
+ Float_t phig=TMath::ATan2(ref->Py(),ref->Px());
+ hp->Fill((phi - phig)*1000.);
+
+ Float_t lamg=TMath::ATan2(ref->Pz(),ptg);
+ hl->Fill((lam - lamg)*1000.);
+
+ hpt->Fill((pt_1 - 1/ptg)/(1/ptg)*100.);
+ }
- hpt->Fill((pt_1 - 1/ptg)/(1/ptg)*100.);
+ Float_t mom=pt/TMath::Cos(lam);
+ Float_t dedx=track->GetTPCsignal();
+ hep->Fill(mom,dedx,1.);
+ if (TMath::Abs(pdg)==211) //pions
+ if (mom>0.4 && mom<0.5) {
+ he->Fill(dedx,1.);
+ }
}
- Float_t mom=1./(pt_1*TMath::Cos(lam));
- Float_t dedx=track->GetdEdx();
- hep->Fill(mom,dedx,1.);
- if (TMath::Abs(gt[ngood].code)==211)
- if (mom>0.4 && mom<0.5) {
- he->Fill(dedx,1.);
- }
+ cout<<"\nList of Not found tracks :\n";
+ for ( i = 0; i< itrack_notfound; i++){
+ cout<<track_notfound[i]<<"\t";
+ if ((i%5)==4) cout<<"\n";
+ }
+ cout<<"\nList of fake tracks :\n";
+ for ( i = 0; i< itrack_fake; i++){
+ cout<<track_fake[i]<<"\t";
+ if ((i%5)==4) cout<<"\n";
+ }
+ cout<<"\nList of multiple found tracks :\n";
+ for ( i=0; i<itrack_multifound; i++) {
+ cout<<"id. "<<track_multifound[i]
+ <<" found - "<<track_multifound_n[i]<<"times\n";
+ }
- }
+ cout<<"Number of found tracks ="<<nentr<<endl;
+ cout<<"Number of \"good\" tracks ="<<ngood<<endl;
- cout<<"\nList of Not found tracks :\n";
- for ( i = 0; i< itrack_notfound; i++){
- cout<<track_notfound[i]<<"\t";
- if ((i%5)==4) cout<<"\n";
- }
- cout<<"\nList of fake tracks :\n";
- for ( i = 0; i< itrack_fake; i++){
- cout<<track_fake[i]<<"\t";
- if ((i%5)==4) cout<<"\n";
- }
- cout<<"\nList of multiple found tracks :\n";
- for ( i=0; i<itrack_multifound; i++) {
- cout<<"id. "<<track_multifound[i]
- <<" found - "<<track_multifound_n[i]<<"times\n";
- }
+ refs->Clear();
+ }// ***** End of the loop over events
- Stat_t ng=hgood->GetEntries(), nf=hfound->GetEntries();
- if (ng!=0) cerr<<"\n\nIntegral efficiency is about "<<nf/ng*100.<<" %\n";
- cout<<"Total number of found tracks ="<<nentr<<endl;
- cout<<"Total number of \"good\" tracks ="
- <<mingood<<" (selected for comparison: "<<ng<<')'<<endl<<endl;
+ delete event;
+ delete esdTree;
+ ef->Close();
+ delete tpcTree;
+ refFile->Close();
+
+ Stat_t ng=hgood->GetEntries(), nf=hfound->GetEntries();
+ if (ng!=0) cout<<"\n\nIntegral efficiency is about "<<nf/ng*100.<<" %\n";
+ cout<<"Total number selected of \"good\" tracks ="<<allselected<<endl<<endl;
+ cout<<"Total number of found tracks ="<<allfound<<endl;
+ cout<<"Total number of \"good\" tracks ="<<allgood<<endl;
+ cout<<endl;
gStyle->SetOptStat(111110);
gStyle->SetOptFit(1);
TCanvas *c1=new TCanvas("c1","",0,0,700,850);
+ Int_t minc=33;
+
TPad *p1=new TPad("p1","",0,0.3,.5,.6); p1->Draw();
p1->cd(); p1->SetFillColor(42); p1->SetFrameFillColor(10);
- hp->SetFillColor(4); hp->SetXTitle("(mrad)"); hp->Fit("gaus"); c1->cd();
+ hp->SetFillColor(4); hp->SetXTitle("(mrad)");
+ if (hp->GetEntries()<minc) hp->Draw(); else hp->Fit("gaus"); c1->cd();
TPad *p2=new TPad("p2","",0.5,.3,1,.6); p2->Draw();
p2->cd(); p2->SetFillColor(42); p2->SetFrameFillColor(10);
- hl->SetXTitle("(mrad)"); hl->Fit("gaus"); c1->cd();
+ hl->SetXTitle("(mrad)");
+ if (hl->GetEntries()<minc) hl->Draw(); else hl->Fit("gaus"); c1->cd();
TPad *p3=new TPad("p3","",0,0,0.5,0.3); p3->Draw();
p3->cd(); p3->SetFillColor(42); p3->SetFrameFillColor(10);
- hpt->SetXTitle("(%)"); hpt->Fit("gaus"); c1->cd();
+ hpt->SetXTitle("(%)");
+ if (hpt->GetEntries()<minc) hpt->Draw(); else hpt->Fit("gaus"); c1->cd();
TPad *p4=new TPad("p4","",0.5,0,1,0.3); p4->Draw();
p4->cd(); p4->SetFillColor(42); p4->SetFrameFillColor(10);
- hmpt->SetXTitle("(%)"); hmpt->Fit("gaus"); c1->cd();
+ hmpt->SetXTitle("(%)");
+ if (hmpt->GetEntries()<minc) hmpt->Draw(); else hmpt->Fit("gaus"); c1->cd();
TPad *p5=new TPad("p5","",0,0.6,1,1); p5->Draw(); p5->cd();
p5->SetFillColor(41); p5->SetFrameFillColor(10);
p6->cd(); p6->SetFillColor(42); p6->SetFrameFillColor(10);
he->SetFillColor(2); he->SetFillStyle(3005);
he->SetXTitle("Arbitrary Units");
- he->Fit("gaus"); c2->cd();
+ if (he->GetEntries()<minc) he->Draw(); else he->Fit("gaus"); c2->cd();
TPad *p7=new TPad("p7","",0.,0.5,1.,1.); p7->Draw();
p7->cd(); p7->SetFillColor(42); p7->SetFrameFillColor(10);
hep->SetXTitle("p (Gev/c)"); hep->SetYTitle("dE/dX (Arb. Units)");
hep->Draw(); c1->cd();
+ TFile fc("AliTPCComparison.root","RECREATE");
+ c1->Write();
+ c2->Write();
+ fc.Close();
+
gBenchmark->Stop("AliTPCComparison");
gBenchmark->Show("AliTPCComparison");
-
return 0;
}
-Int_t good_tracks_tpc(GoodTrackTPC *gt, const Int_t max, const Int_t event) {
- Int_t nt=0;
+Int_t GoodTracksTPC(const Char_t *dir) {
+ if (gAlice) {
+ delete gAlice->GetRunLoader();
+ delete gAlice;//if everything was OK here it is already NULL
+ gAlice = 0x0;
+ }
- TFile *file=TFile::Open("galice.root");
- if (!file->IsOpen()) {cerr<<"Can't open galice.root !\n"; exit(4);}
+ Char_t fname[100];
+ sprintf(fname,"%s/galice.root",dir);
- if (!(gAlice=(AliRun*)file->Get("gAlice"))) {
- cerr<<"gAlice have not been found on galice.root !\n";
- exit(5);
+ AliRunLoader *rl = AliRunLoader::Open(fname,"COMPARISON");
+ if (!rl) {
+ ::Error("GoodTracksTPC","Can't start session !");
+ return 1;
}
- Int_t np=gAlice->GetEvent(event);
+ rl->LoadgAlice();
+ rl->LoadHeader();
+ rl->LoadKinematics();
+ rl->LoadTrackRefs();
- AliTPC *TPC=(AliTPC*)gAlice->GetDetector("TPC");
+ AliTPCLoader *tpcl = (AliTPCLoader *)rl->GetLoader("TPCLoader");
+ if (tpcl == 0x0) {
+ ::Error("GoodTracksTPC","Can not find TPCLoader !");
+ delete rl;
+ return 2;
+ }
+
+ AliTPC *TPC=(AliTPC*)rl->GetAliRun()->GetDetector("TPC");
Int_t ver = TPC->IsVersion();
- cerr<<"TPC version "<<ver<<" has been found !\n";
-
- AliTPCParamSR *digp=(AliTPCParamSR*)file->Get("75x40_100x60_150x60");
- if (!digp) { cerr<<"TPC parameters have not been found !\n"; exit(6); }
+ cout<<"TPC version "<<ver<<" has been found !\n";
+ if (ver==1) tpcl->LoadRecPoints();
+ else if (ver==2) tpcl->LoadDigits();
+ else {
+ ::Error("GoodTracksTPC","Wrong TPC version !");
+ delete rl;
+ return 3;
+ }
+
+ rl->CdGAFile();
+ AliTPCParamSR *digp=(AliTPCParamSR*)gDirectory->Get("75x40_100x60_150x60");
+ if (!digp) {
+ ::Error("AliTPCHits2Digits.C","TPC parameters have not been found !");
+ delete rl;
+ return 4;
+ }
TPC->SetParam(digp);
-
-
Int_t nrow_up=digp->GetNRowUp();
Int_t nrows=digp->GetNRowLow()+nrow_up;
Int_t zero=digp->GetZeroSup();
Int_t gap=Int_t(0.125*nrows), shift=Int_t(0.5*gap);
Int_t good_number=Int_t(0.4*nrows);
- Int_t *good=new Int_t[np];
- Int_t i;
- for (i=0; i<np; i++) good[i]=0;
-
-
- switch (ver) {
- case 1:
- {
- char cname[100]; sprintf(cname,"TreeC_TPC_%d",event);
- TFile *cf=TFile::Open("AliTPCclusters.root");
- if (!cf->IsOpen()){cerr<<"Can't open AliTPCclusters.root !\n";exit(5);}
- AliTPCClustersArray *pca=new AliTPCClustersArray, &ca=*pca;
- ca.Setup(digp);
- ca.SetClusterType("AliTPCcluster");
- ca.ConnectTree(cname);
- Int_t nrows=Int_t(ca.GetTree()->GetEntries());
- for (Int_t n=0; n<nrows; n++) {
+ Int_t nev=rl->GetNumberOfEvents();
+ ::Info("GoodTracksTPC","Number of events : %d\n",nev);
+
+
+ sprintf(fname,"%s/GoodTracksTPC.root",dir);
+ TFile *file=TFile::Open(fname,"recreate");
+
+ TClonesArray dummy("AliTrackReference",1000), *refs=&dummy;
+ TTree tpcTree("tpcTree","Tree with info about the reconstructable TPC tracks");
+ tpcTree.Branch("TPC",&refs);
+
+ //******** Loop over generated events
+ for (Int_t e=0; e<nev; e++) {
+ Int_t nt=0;
+ refs->Clear();
+
+ Int_t i;
+
+ rl->GetEvent(e); file->cd();
+
+ Int_t np = rl->GetHeader()->GetNtrack();
+ cout<<"Event "<<e<<" Number of particles: "<<np<<endl;
+
+ //******** Fill the "good" masks
+ Int_t *good=new Int_t[np]; for (i=0; i<np; i++) good[i]=0;
+ switch (ver) {
+ case 1:
+ {
+ AliTPCClustersArray *pca=new AliTPCClustersArray, &ca=*pca;
+ ca.Setup(digp);
+ ca.SetClusterType("AliTPCcluster");
+ ca.ConnectTree(tpcl->TreeR());
+ Int_t nrows=Int_t(ca.GetTree()->GetEntries());
+ for (Int_t n=0; n<nrows; n++) {
AliSegmentID *s=ca.LoadEntry(n);
Int_t sec,row;
digp->AdjustSectorRow(s->GetID(),sec,row);
good[lab]++;
}
ca.ClearRow(sec,row);
- }
- delete pca;
- cf->Close();
- }
- break;
- case 2:
- {
- TFile fff("digits.root");
-
- char dname[100]; sprintf(dname,"TreeD_75x40_100x60_150x60_%d",event);
- TTree *TD=(TTree*)gDirectory->Get(dname);
- AliSimDigits da, *digits=&da;
- TD->GetBranch("Segment")->SetAddress(&digits);
-
- Int_t *count = new Int_t[np];
- Int_t i;
- for (i=0; i<np; i++) count[i]=0;
+ }
+ delete pca;
+ }
+ break;
+ case 2:
+ {
+ TTree *TD=tpcl->TreeD();
+
+ AliSimDigits da, *digits=&da;
+ TD->GetBranch("Segment")->SetAddress(&digits);
+
+ Int_t *count = new Int_t[np];
+ Int_t i;
+ for (i=0; i<np; i++) count[i]=0;
- Int_t sectors_by_rows=(Int_t)TD->GetEntries();
- for (i=0; i<sectors_by_rows; i++) {
+ Int_t sectors_by_rows=(Int_t)TD->GetEntries();
+ for (i=0; i<sectors_by_rows; i++) {
if (!TD->GetEvent(i)) continue;
Int_t sec,row;
digp->AdjustSectorRow(digits->GetID(),sec,row);
- cerr<<sec<<' '<<row<<" \r";
+ //cerr<<sec<<' '<<row<<'\r';
digits->First();
do { //Many thanks to J.Chudoba who noticed this
Int_t it=digits->CurrentRow(), ip=digits->CurrentColumn();
}
count[j]=0;
}
- }
- delete[] count;
- delete TD; //Thanks to Mariana Bondila
+ }
+ delete[] count;
+ }
+ break;
}
- break;
- default:
- cerr<<"Invalid TPC version !\n";
- file->Close();
- exit(7);
- }
-
-
- /** select tracks which are "good" enough **/
- for (i=0; i<np; i++) {
- if ((good[i]&0x5000) != 0x5000)
- if ((good[i]&0x2800) != 0x2800) continue;
- if ((good[i]&0x7FF ) < good_number) continue;
- TParticle *p = (TParticle*)gAlice->Particle(i);
- if (p->Pt()<0.100) continue;
- if (TMath::Abs(p->Pz()/p->Pt())>0.999) continue;
+ //****** select tracks which are "good" enough
+ AliStack* stack = rl->Stack();
+ for (i=0; i<np; i++) {
+ if ((good[i]&0x5000) != 0x5000)
+ if ((good[i]&0x2800) != 0x2800) continue;
+ if ((good[i]&0x7FF ) < good_number) continue;
- Int_t j=p->GetFirstMother();
- if (j>=0) {
- TParticle *pp = (TParticle*)gAlice->Particle(j);
- if (pp->GetFirstMother()>=0) continue;//only one decay is allowed
- /* for cascade hyperons only
- Int_t jj=pp->GetFirstMother();
- if (jj>=0) {
- TParticle *ppp = (TParticle*)gAlice->Particle(jj);
- if (ppp->GetFirstMother()>=0) continue;//two decays are allowed
+ TParticle *p = (TParticle*)stack->Particle(i);
+ if (p == 0x0) {
+ cerr<<"Can not get particle "<<i<<endl;
+ continue;
}
- */
- }
+ if (p->Pt()<0.100) continue;
+ if (TMath::Abs(p->Pz()/p->Pt())>0.999) continue;
- gt[nt].lab=i;
- gt[nt].code=p->GetPdgCode();
- gt[nt].px=0.; gt[nt].py=0.; gt[nt].pz=0.;
- gt[nt].x=0.; gt[nt].y=0.; gt[nt].z=0.;
- nt++;
- if (nt==max) {cerr<<"Too many good tracks !\n"; break;}
- cerr<<np-i<<" \r";
- }
+ Double_t vx=p->Vx(),vy=p->Vy(),vz=p->Vz();
+ if (TMath::Sqrt(vx*vx+vy*vy)>3.5) continue;
+ if (TMath::Abs(vz) > 50.) continue;
- /** check if there is also information at the entrance of the TPC **/
- TTree *TH=gAlice->TreeH(); np=(Int_t)TH->GetEntries();
- for (i=0; i<np; i++) {
- TPC->ResetHits();
- TH->GetEvent(i);
- AliTPChit *phit = (AliTPChit*)TPC->FirstHit(-1);
- for ( ; phit; phit=(AliTPChit*)TPC->NextHit() ) {
- if (phit->fQ !=0. ) continue;
-
- Double_t px=phit->X(), py=phit->Y(), pz=phit->Z();
-
- if ((phit=(AliTPChit*)TPC->NextHit())==0) break;
- if (phit->fQ != 0.) continue;
-
- Double_t x=phit->X(), y=phit->Y(), z=phit->Z();
- if (TMath::Sqrt(x*x+y*y)>90.) continue;
-
- Int_t j, lab=phit->Track();
- for (j=0; j<nt; j++) {if (gt[j].lab==lab) break;}
- if (j==nt) continue;
-
- // (px,py,pz) - in global coordinate system, (x,y,z) - in local !
- gt[j].px=px; gt[j].py=py; gt[j].pz=pz;
- Float_t cs,sn; digp->AdjustCosSin(phit->fSector,cs,sn);
- gt[j].x = x*cs + y*sn;
- gt[j].y =-x*sn + y*cs;
- gt[j].z = z;
- }
- cerr<<np-i<<" \r";
- }
+ AliTrackReference *ref=new((*refs)[nt]) AliTrackReference();
- delete[] good;
+ ref->SetLabel(i);
+ Int_t pdg=p->GetPdgCode();
+ ref->SetLength(pdg); //This will the particle's PDG !
+ ref->SetMomentum(0.,0.,0.);
+ ref->SetPosition(0.,0.,0.);
- delete gAlice; gAlice=0;
+ nt++;
+ }
- file->Close();
- gBenchmark->Stop("AliTPCComparison");
- gBenchmark->Show("AliTPCComparison");
- return nt;
-}
+ //**** check if there is also information at the entrance of the TPC
+ TTree *TR=rl->TreeTR();
+ TBranch *branch=TR->GetBranch("TrackReferences");
+ if (branch==0) {
+ ::Error("GoodTracksTPC","No track references !");
+ delete rl;
+ return 5;
+ }
+ TClonesArray tpcdummy("AliTrackReference",1000), *tpcRefs=&tpcdummy;
+ branch->SetAddress(&tpcRefs);
+ Int_t nr=(Int_t)TR->GetEntries();
+ for (Int_t r=0; r<nr; r++) {
+ //cerr<<r<<' '<<nr<<'\r';
+ TR->GetEvent(r);
+
+ Int_t nref = tpcRefs->GetEntriesFast();
+ if (!nref) continue;
+ AliTrackReference *tpcRef= 0x0;
+ for (Int_t iref=0; iref<nref; ++iref) {
+ tpcRef = (AliTrackReference*)tpcRefs->UncheckedAt(iref);
+ if (tpcRef->DetectorId() == AliTrackReference::kTPC) break;
+ tpcRef = 0x0;
+ }
+
+ if (!tpcRef) continue;
+
+ Int_t j;
+ AliTrackReference *ref=0;
+ for (j=0; j<nt; j++) {
+ ref=(AliTrackReference *)refs->UncheckedAt(j);
+ if (ref->Label()==tpcRef->Label()) break;
+ ref=0;
+ }
+ if (ref==0) continue;
+
+ ref->SetMomentum(tpcRef->Px(),tpcRef->Py(),tpcRef->Pz());
+ ref->SetPosition(tpcRef->LocalX(),tpcRef->LocalY(),tpcRef->Z());
+
+ tpcRefs->Clear();
+ }
+
+ tpcTree.Fill();
+ delete[] good;
+ } //****** end of the loop over generated events
+
+ tpcTree.Write();
+ file->Close();
+ delete rl;
+ return 0;
+}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff