* *
* 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"
+#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 <TPad.h>
+ #include <TCanvas.h>
+ #include <TLine.h>
+ #include <TText.h>
+ #include <TBenchmark.h>
+ #include <TStyle.h>
+ #include <TKey.h>
+ #include <TROOT.h>
+
+ #include "AliStack.h"
+ #include "AliHeader.h"
+ #include "AliTrackReference.h"
+ #include "AliRunLoader.h"
+ #include "AliMagF.h"
+ #include "AliRun.h"
+ #include "AliESD.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 {
Float_t x,y,z;
};
-Int_t AliTPCComparison(Int_t event=0) {
- cerr<<"Doing comparison...\n";
+Int_t good_tracks_tpc(GoodTrackTPC *gt, const Int_t max,
+const char* evfoldname=AliConfig::fgkDefaultEventFolderName);
- const Int_t MAX=20000;
- Int_t good_tracks_tpc(GoodTrackTPC *gt, const Int_t max, const Int_t event);
+extern AliRun *gAlice;
+extern TBenchmark *gBenchmark;
+extern TROOT *gROOT;
+Int_t AliTPCComparison(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...");
+
+ if (gAlice) {
+ delete gAlice->GetRunLoader();
+ delete gAlice;//if everything was OK here it is already NULL
+ gAlice = 0x0;
+ }
+
+ Char_t fname[100];
+ sprintf(fname,"%s/galice.root",dir);
+
+ AliRunLoader *rl = AliRunLoader::Open(fname,"COMPARISON");
+ if (!rl) {
+ ::Fatal("AliTPCComparison.C","Can't start session !");
}
/* Generate a list of "good" tracks */
+ const Int_t MAX=20000;
GoodTrackTPC gt[MAX];
Int_t ngood=0;
- ifstream in("good_tracks_tpc");
+ sprintf(fname,"%s/good_tracks_tpc",dir);
+ ifstream in(fname);
if (in) {
- cerr<<"Reading good tracks...\n";
+ ::Info("AliTPCComparison.C","Reading good tracks...");
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;
- }
+ ngood++;
+ if (ngood==MAX) {
+ ::Warning("AliTPCComparison.C","Too many good tracks !");
+ break;
+ }
}
- if (!in.eof()) cerr<<"Read error (good_tracks_tpc) !\n";
+ if (!in.eof())
+ ::Fatal("AliTPCComparison.C","Read error (good_tracks_tpc) !");
} else {
- cerr<<"Marking good tracks (this will take a while)...\n";
- ngood=good_tracks_tpc(gt,MAX, event);
- ofstream out("good_tracks_tpc");
+ ::Info
+ ("AliTPCComparison","Marking good tracks (this will take a while)...");
+ ngood=good_tracks_tpc(gt,MAX,"COMPARISON");
+ ofstream out(fname);
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";
+ } else
+ ::Fatal("AliTPCComparison.C","Can not open file (good_tracks_tpc) !");
out.close();
}
+ AliESD *event=0;
+ { /*Load tracks*/
+ 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()))
+ ::Fatal("AliTPCComparison.C","Can't open AliESDtpc.root !");
+ }
+ TKey *key=0;
+ TIter next(ef->GetListOfKeys());
+ if ((key=(TKey*)next())!=0) event=(AliESD*)key->ReadObj();
+ ef->Close();
+ }
+ Int_t nentr=event->GetNumberOfTracks();
+
+ TH1F *hp=(TH1F*)gROOT->FindObject("hp");
+ if (!hp) hp=new TH1F("hp","PHI resolution",50,-20.,20.);
+ hp->SetFillColor(4);
+
+ 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 *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);
- 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);
Int_t track_fake[MAX], itrack_fake=0;
Int_t track_multifound[MAX], track_multifound_n[MAX], itrack_multifound=0;
+ Int_t i;
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);
if (ptg<1e-33) continue; // for those not crossing 0 pad row
-
+ if (ptg<0.2) continue;
hgood->Fill(ptg);
- AliTPCtrack *track=0;
+ AliESDtrack *track=0;
for (i=0; i<nentr; i++) {
- track=(AliTPCtrack*)tarray.UncheckedAt(i);
+ track=event->GetTrack(i);
tlab=track->GetLabel();
if (lab==TMath::Abs(tlab)) break;
}
//MI change - addition
Int_t micount=0;
Int_t mi;
- AliTPCtrack * mitrack;
+ AliESDtrack * mitrack;
for (mi=0; mi<nentr; mi++) {
- mitrack=(AliTPCtrack*)tarray.UncheckedAt(mi);
+ mitrack=event->GetTrack(mi);
if (lab==TMath::Abs(mitrack->GetLabel())) micount++;
}
if (micount>1) {
itrack_multifound++;
}
- Double_t xk=gt[ngood].x;
- track->PropagateTo(xk);
-
if (lab==tlab) hfound->Fill(ptg);
else {
track_fake[itrack_fake++]=lab;
hfake->Fill(ptg);
}
- Double_t par[5]; track->GetExternalParameters(xk,par);
- Float_t phi=TMath::ASin(par[2]) + track->GetAlpha();
+ 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();
- Float_t lam=TMath::ATan(par[3]);
- Float_t pt_1=TMath::Abs(par[4]);
+ 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;
if (TMath::Abs(gt[ngood].code)==11 && ptg>4.) {
hmpt->Fill((pt_1 - 1/ptg)/(1/ptg)*100.);
hpt->Fill((pt_1 - 1/ptg)/(1/ptg)*100.);
}
- Float_t mom=1./(pt_1*TMath::Cos(lam));
- Float_t dedx=track->GetdEdx();
+ Float_t mom=pt/TMath::Cos(lam);
+ Float_t dedx=track->GetTPCsignal();
hep->Fill(mom,dedx,1.);
if (TMath::Abs(gt[ngood].code)==211)
if (mom>0.4 && mom<0.5) {
gBenchmark->Stop("AliTPCComparison");
gBenchmark->Show("AliTPCComparison");
-
+ delete rl;
return 0;
}
-Int_t good_tracks_tpc(GoodTrackTPC *gt, const Int_t max, const Int_t event) {
+Int_t
+good_tracks_tpc(GoodTrackTPC *gt, const Int_t max, const char* evfoldname) {
Int_t nt=0;
- TFile *file=TFile::Open("galice.root");
- if (!file->IsOpen()) {cerr<<"Can't open galice.root !\n"; exit(4);}
-
- if (!(gAlice=(AliRun*)file->Get("gAlice"))) {
- cerr<<"gAlice have not been found on galice.root !\n";
- exit(5);
+ AliRunLoader *rl = AliRunLoader::GetRunLoader(evfoldname);
+ if (rl == 0x0) {
+ ::Fatal("AliTPCComparison.C::good_tracks_tpc",
+ "Can not find Run Loader in Folder Named %s",
+ evfoldname);
}
-
- Int_t np=gAlice->GetEvent(event);
-
- AliTPC *TPC=(AliTPC*)gAlice->GetDetector("TPC");
+ AliTPCLoader *tpcl = (AliTPCLoader *)rl->GetLoader("TPCLoader");
+ if (tpcl == 0x0) {
+ ::Fatal("AliTPCHits2Digits.C","Can not find TPCLoader !");
+ }
+
+ rl->LoadgAlice();
+
+ 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); }
+ rl->CdGAFile();
+ AliTPCParamSR *digp=(AliTPCParamSR*)gDirectory->Get("75x40_100x60_150x60");
+ if (!digp) {
+ ::Fatal("AliTPCHits2Digits.C","TPC parameters have not been found !");
+ }
TPC->SetParam(digp);
-
+ rl->LoadHeader();
+
+ Int_t np = rl->GetHeader()->GetNtrack();
+
Int_t nrow_up=digp->GetNRowUp();
Int_t nrows=digp->GetNRowLow()+nrow_up;
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);}
+ tpcl->LoadRecPoints();
AliTPCClustersArray *pca=new AliTPCClustersArray, &ca=*pca;
ca.Setup(digp);
ca.SetClusterType("AliTPCcluster");
- ca.ConnectTree(cname);
+ 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);
ca.ClearRow(sec,row);
}
delete pca;
- cf->Close();
+ tpcl->UnloadRecPoints();
}
break;
case 2:
{
- char dname[100]; sprintf(dname,"TreeD_75x40_100x60_150x60_%d",event);
- TTree *TD=(TTree*)gDirectory->Get(dname);
+ tpcl->LoadDigits();
+ TTree *TD=tpcl->TreeD();
+
AliSimDigits da, *digits=&da;
TD->GetBranch("Segment")->SetAddress(&digits);
}
}
delete[] count;
- delete TD; //Thanks to Mariana Bondila
+ tpcl->UnloadDigits();
}
break;
default:
- cerr<<"Invalid TPC version !\n";
- file->Close();
- exit(7);
+ ::Fatal("AliTPCComparison.C","Invalid TPC version !");
}
-
+ rl->LoadKinematics();
+ AliStack* stack = rl->Stack();
/** 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);
-
+ 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;
+ Double_t vx=p->Vx(),vy=p->Vy();
+ if (TMath::Sqrt(vx*vx+vy*vy)>3.5) 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
+ TParticle *pp = (TParticle*)stack->Particle(j);
+ if (pp == 0x0)
+ {
+ cerr<<"Can not get particle "<<j<<endl;
+ continue;
+ }
+ //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);
+ TParticle *ppp = (TParticle*)stack->Particle(jj);
if (ppp->GetFirstMother()>=0) continue;//two decays are allowed
}
- */
+
}
+ */
gt[nt].lab=i;
gt[nt].code=p->GetPdgCode();
if (nt==max) {cerr<<"Too many good tracks !\n"; break;}
cerr<<np-i<<" \r";
}
+ rl->UnloadKinematics();
/** check if there is also information at the entrance of the TPC **/
- TTree *TH=gAlice->TreeH(); np=(Int_t)TH->GetEntries();
+
+ rl->LoadTrackRefs();
+ TTree *TR=rl->TreeTR();
+ TBranch *branch=TR->GetBranch("TPC");
+ if (branch==0) {
+ ::Fatal("AliTPCComparison.C::good_tracks_tpc","No track references !");
+ }
+ TClonesArray *references=new TClonesArray("AliTrackReference",1000);
+ branch->SetAddress(&references);
+ np=(Int_t)TR->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";
+ references->Clear();
+ TR->GetEvent(i);
+ Int_t nref=references->GetEntriesFast();
+ if (nref==0) continue;
+ AliTrackReference *ref=(AliTrackReference*)references->UncheckedAt(0);
+
+ Int_t j, lab=ref->Label();
+ 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=ref->Px(); gt[j].py=ref->Py(); gt[j].pz=ref->Pz();
+ gt[j].x = ref->LocalX();
+ gt[j].y = ref->LocalY();
+ gt[j].z = ref->Z();
}
+ delete references;
delete[] good;
+
+ tpcl->UnloadHits();
+ rl->UnloadTrackRefs();
+ rl->UnloadgAlice();
- delete gAlice; gAlice=0;
-
- file->Close();
gBenchmark->Stop("AliTPCComparison");
gBenchmark->Show("AliTPCComparison");
return nt;
}
-
-
-
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff