#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"
- #include "AliITSLoader.h"
#endif
Int_t AliCascadeFindVertices(Int_t nev=5) {
cerr<<"Looking for cascade vertices...\n";
if (gAlice) {
- delete gAlice->GetRunLoader();
+ delete AliRunLoader::Instance();
delete gAlice;
gAlice=0;
}
cerr<<"AliCascadeFindVertices.C : Can not open session RL=NULL"<< endl;
return 1;
}
- AliITSLoader* itsl = (AliITSLoader*)rl->GetLoader("ITSLoader");
- if (itsl == 0x0) {
- cerr<<"AliCascadeFindVertices.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("read");
- itsl->LoadCascades("recreate");
+ // 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=0;
if (nev>rl->GetNumberOfEvents()) nev=rl->GetNumberOfEvents();
- for (Int_t i=0; i<nev; i++) {
- rl->GetEvent(i);
- TTree *tTree=itsl->TreeT();
- if (!tTree) {
- cerr<<"AliCascadeFindVertices.C : Can't get the ITS track tree !"<<endl;
- return 3;
- }
- TTree *vTree=itsl->TreeV0();
- if (!vTree) {
- cerr<<"AliCascadeFindVertices.C : Can't get the V0 tree !"<<endl;
- return 4;
- }
- TTree *xTree=itsl->TreeX();
- if (!xTree) {
- itsl->MakeTree("X");
- xTree=itsl->TreeX();
- }
+ 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(vTree,tTree,xTree);
+ rc=vertexer->V0sTracks2CascadeVertices(event);
- itsl->WriteCascades("OVERWRITE");
+ 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();
+ v0f->Close();
+ casf->Close();
+
delete rl;
return rc;