-#ifndef __CINT__
+#if !defined(__CINT__) || defined(__MAKECINT__)
#include <Riostream.h>
#include "AliCascadeVertexer.h"
#include "TFile.h"
+ #include "TKey.h"
#include "TStopwatch.h"
+
+ #include "AliRun.h"
+ #include "AliESD.h"
+ #include "AliTracker.h"
+ #include "AliRunLoader.h"
#endif
-Int_t AliCascadeFindVertices() {
+Int_t AliCascadeFindVertices(Int_t nev=5) {
cerr<<"Looking for cascade vertices...\n";
- TFile *out=TFile::Open("AliCascadeVertices.root","new");
- if (!out->IsOpen()) {
- cerr<<"Delete old AliCascadeVertices.root !\n"; return 1;
+ if (gAlice) {
+ delete AliRunLoader::Instance();
+ delete gAlice;
+ gAlice=0;
+ }
+ AliRunLoader* rl = AliRunLoader::Open("galice.root");
+ if (rl == 0x0) {
+ cerr<<"AliCascadeFindVertices.C : Can not open session RL=NULL"<< endl;
+ return 1;
}
- TFile *in=TFile::Open("AliITStracksV2.root");
- if (!in->IsOpen()) {cerr<<"Can't open AliITStracksV2.root !\n"; return 2;}
- TFile *file=TFile::Open("AliV0vertices.root");
- if (!file->IsOpen()) {
- cerr<<"Can't open AliV0vertices.root !\n";return 3;
+ if (rl->LoadgAlice()) {
+ cerr<<"AliV0FindVertices.C : LoadgAlice returned error"<<endl;
+ delete rl;
+ return 3;
}
+
+ // Magnetic field
+ AliTracker::SetFieldMap(gAlice->Field(),1); // 1 means uniform magnetic field
Double_t cuts[]={33., // max. allowed chi2
0.05, // min. allowed V0 impact parameter
0.008, // window around the Lambda mass
0.035, // min. allowed bachelor's impact parameter
0.10, // max. allowed DCA between a V0 and a track
- 0.9985, // max. allowed cosine of the cascade pointing angle
+ 0.9985,// max. allowed cosine of the cascade pointing angle
0.9, // min. radius of the fiducial volume
2.9 // max. radius of the fiducial volume
};
TStopwatch timer;
AliCascadeVertexer *vertexer=new AliCascadeVertexer(cuts);
- Int_t rc=vertexer->V0sTracks2CascadeVertices(in,out);
+
+ Int_t rc=0;
+ if (nev>rl->GetNumberOfEvents()) nev=rl->GetNumberOfEvents();
+
+ TFile *casf=TFile::Open("AliESDcas.root","RECREATE");
+ if ((!casf)||(!casf->IsOpen())) {
+ cerr<<"Can't AliESDcas.root !\n"; return 1;
+ }
+ TFile *v0f=TFile::Open("AliESDv0.root");
+ if ((!v0f)||(!v0f->IsOpen())) {
+ cerr<<"Can't AliESDv0.root !\n"; return 1;
+ }
+
+ TKey *key=0;
+ TIter next(v0f->GetListOfKeys());
+ for (Int_t i=0; i<nev; i++) {
+ v0f->cd();
+ if ((key=(TKey*)next())==0) break;
+ cerr<<"Processing event number: "<<i<<endl;
+ AliESD *event=(AliESD*)key->ReadObj();
+
+ rc=vertexer->V0sTracks2CascadeVertices(event);
+
+ if (rc==0) {
+ Char_t ename[100];
+ sprintf(ename,"%d",i);
+ casf->cd();
+ if (!event->Write(ename)) rc++;
+ }
+ if (rc) {
+ cerr<<"Something bad happened...\n";
+ }
+ delete event;
+ }
delete vertexer;
timer.Stop(); timer.Print();
- file->Close();
- in->Close();
- out->Close();
+ v0f->Close();
+ casf->Close();
+
+ delete rl;
return rc;
}