+/****************************************************************************
+ * Origin: I.Belikov, CERN, Jouri.Belikov@cern.ch *
+ ****************************************************************************/
+
#if !defined(__CINT__) || defined(__MAKECINT__)
#include "Riostream.h"
#include "AliV0vertexer.h"
#include "TFile.h"
+ #include "TKey.h"
#include "TStopwatch.h"
#include "AliRun.h"
+ #include "AliKalmanTrack.h"
+ #include "AliMagF.h"
+ #include "AliESD.h"
#include "AliRunLoader.h"
- #include "AliITSLoader.h"
#endif
extern AliRun *gAlice;
delete gAlice;
gAlice=0;
}
+
AliRunLoader* rl = AliRunLoader::Open("galice.root");
if (rl == 0x0) {
cerr<<"AliV0FindVertices.C : Can not open session RL=NULL"<< endl;
return 1;
}
- AliITSLoader* itsl = (AliITSLoader*)rl->GetLoader("ITSLoader");
- if (itsl == 0x0) {
- cerr<<"AliV0FindVertices.C : Can not get ITS loader"<<endl;
- return 2;
+
+ if (rl->LoadgAlice()) {
+ cerr<<"AliV0FindVertices.C : LoadgAlice returned error"<<endl;
+ delete rl;
+ return 3;
}
- itsl->LoadTracks("read");
- itsl->LoadV0s("recreate");
+ AliKalmanTrack::SetConvConst(
+ 1000/0.299792458/rl->GetAliRun()->Field()->SolenoidField()
+ );
+
Double_t cuts[]={33, // max. allowed chi2
0.16,// min. allowed negative daughter's impact parameter
0.05,// min. allowed positive daughter's impact parameter
AliV0vertexer vtxer(cuts);
Int_t rc=0;
if (nev>rl->GetNumberOfEvents()) nev=rl->GetNumberOfEvents();
+
+ TFile *v0f=TFile::Open("AliESDv0.root","RECREATE");
+ if ((!v0f)||(!v0f->IsOpen())) {
+ cerr<<"Can't AliESDv0.root !\n"; return 1;
+ }
+ TFile *itsf=TFile::Open("AliESDits.root");
+ if ((!itsf)||(!itsf->IsOpen())) {
+ cerr<<"Can't AliESDits.root !\n"; return 1;
+ }
+ TKey *key=0;
+ TIter next(itsf->GetListOfKeys());
for (Int_t i=0; i<nev; i++) {
- rl->GetEvent(i);
- //Double_t vtx[3]={0.,0.,0.}; vtxer.SetVertex(vtx); // primary vertex (cm)
+ itsf->cd();
+ if ((key=(TKey*)next())==0) break;
+ cerr<<"Processing event number: "<<i<<endl;
+ AliESD *event=(AliESD*)key->ReadObj();
- TTree *tTree=itsl->TreeT();
- if (!tTree) {
- cerr<<"AliV0FindVertices.C : Can't get the ITS track tree !"<<endl;
- return 3;
- }
- TTree *vTree=itsl->TreeV0();
- if (!vTree) {
- itsl->MakeTree("V0");
- vTree=itsl->TreeV0();
- }
+ //Double_t vtx[3]={0.,0.,0.}; vtxer.SetVertex(vtx); // primary vertex (cm)
- rc=vtxer.Tracks2V0vertices(tTree,vTree);
+ rc=vtxer.Tracks2V0vertices(event);
- itsl->WriteV0s("OVERWRITE");
+ if (rc==0) {
+ Char_t ename[100];
+ sprintf(ename,"%d",i);
+ v0f->cd();
+ if (!event->Write(ename)) rc++;
+ }
+ if (rc) {
+ cerr<<"Something bad happened...\n";
+ }
+ delete event;
}
timer.Stop(); timer.Print();
+ itsf->Close();
+ v0f->Close();
+
delete rl;
return rc;