/*
$Log$
+Revision 1.20 2002/04/30 11:47:30 morsch
+KeepPhysics method called by PurifyKine added (N. Carrer, A.M.)
+
+Revision 1.19 2002/03/12 11:06:03 morsch
+Add particle status code to argument list of SetTrack(..).
+
+Revision 1.18 2002/02/20 16:14:41 hristov
+fParticleBuffer points to object which doesn't belong to AliStack, do not delete it (J.Chudoba)
+
+Revision 1.17 2001/12/05 08:51:56 hristov
+The default constructor now creates no objects (thanks to r.Brun). Some corrections required by the previous changes.
+
+Revision 1.16 2001/11/20 09:27:55 hristov
+Possibility to investigate a primary of not yet loaded particle (I.Hrivnacova)
+
+Revision 1.15 2001/09/04 15:10:37 hristov
+Additional protection is included to avoid some problems using Hijing
+
+Revision 1.14 2001/08/30 09:44:06 hristov
+VertexSource_t added to avoid the warnings
+
+Revision 1.13 2001/08/29 13:31:42 morsch
+Protection against (fTreeK == 0) in destructor.
+
+Revision 1.12 2001/07/27 13:03:13 hristov
+Default Branch split level set to 99
+
+Revision 1.11 2001/07/27 12:34:20 jchudoba
+remove the dummy argument in GetEvent method
+
+Revision 1.10 2001/07/20 10:13:54 morsch
+In Particle(Int_t) use GetEntriesFast to speed up the procedure.
+
+Revision 1.9 2001/07/03 08:10:57 hristov
+J.Chudoba's changes merged correctly with the HEAD
+
+Revision 1.6 2001/05/31 06:59:06 fca
+Clean setting and deleting of fParticleBuffer
+
+Revision 1.5 2001/05/30 12:18:46 hristov
+Loop variables declared once
+
+Revision 1.4 2001/05/25 07:25:20 hristov
+AliStack destructor corrected (I.Hrivnacova)
+
+Revision 1.3 2001/05/22 14:33:16 hristov
+Minor changes
+
Revision 1.2 2001/05/17 05:49:39 fca
Reset pointers to daughters
#include "AliRun.h"
#include "AliModule.h"
#include "AliHit.h"
-//#include "ETrackBits.h"
ClassImp(AliStack)
// Create the particles arrays
fParticles = new TClonesArray("TParticle",1000);
fParticleMap = new TObjArray(size);
- fParticleBuffer = new TParticle();
- fNtrack = 0;
- fNprimary = 0;
+ fParticleBuffer = 0;
+ fNtrack = 0;
+ fNprimary = 0;
fCurrent = -1;
fCurrentPrimary = -1;
- fTreeK = 0;
+ fTreeK = 0;
}
//
// Create the particles arrays
- fParticles = new TClonesArray("TParticle",1000);
- fParticleMap = new TObjArray(10000);
- fParticleBuffer = new TParticle();
- fNtrack = 0;
+ fParticles = 0;
+ fParticleMap = 0;
+ fParticleBuffer = 0;
+ fNtrack = 0;
fCurrent = -1;
- fNprimary = 0;
+ fNprimary = 0;
fCurrentPrimary = -1;
- fTreeK = 0;
+ fTreeK = 0;
}
delete fParticles;
}
delete fParticleMap;
- delete fParticleBuffer;
- delete fTreeK;
+ if (fTreeK) delete fTreeK;
}
//
//_____________________________________________________________________________
void AliStack::SetTrack(Int_t done, Int_t parent, Int_t pdg, Float_t *pmom,
Float_t *vpos, Float_t *polar, Float_t tof,
- AliMCProcess mech, Int_t &ntr, Float_t weight)
+ AliMCProcess mech, Int_t &ntr, Float_t weight, Int_t is)
{
//
// Load a track on the stack
Float_t mass;
const Int_t kfirstdaughter=-1;
const Int_t klastdaughter=-1;
- const Int_t kS=0;
// const Float_t tlife=0;
//
Float_t e=TMath::Sqrt(mass*mass+pmom[0]*pmom[0]+
pmom[1]*pmom[1]+pmom[2]*pmom[2]);
-// printf("Loading mass %f ene %f No %d ip %d parent %d done %d pos %f %f %f mom %f %f %f kS %d m \n",
-// mass,e,fNtrack,pdg,parent,done,vpos[0],vpos[1],vpos[2],pmom[0],pmom[1],pmom[2],kS);
-
+// printf("Loading mass %f ene %f No %d ip %d parent %d done %d pos %f %f %f mom %f %f %f kS %d m \n",
+// mass,e,fNtrack,pdg,parent,done,vpos[0],vpos[1],vpos[2],pmom[0],pmom[1],pmom[2],kS);
+
TClonesArray &particles = *fParticles;
TParticle* particle
= new(particles[fLoadPoint++])
- TParticle(pdg, kS, parent, -1, kfirstdaughter, klastdaughter,
+ TParticle(pdg, is, parent, -1, kfirstdaughter, klastdaughter,
pmom[0], pmom[1], pmom[2], e, vpos[0], vpos[1], vpos[2], tof);
particle->SetPolarisation(TVector3(polar[0],polar[1],polar[2]));
particle->SetWeight(weight);
if(parent>=0) {
particle = (TParticle*) fParticleMap->At(parent);
- particle->SetLastDaughter(fNtrack);
- if(particle->GetFirstDaughter()<0) particle->SetFirstDaughter(fNtrack);
+ if (particle) {
+ particle->SetLastDaughter(fNtrack);
+ if(particle->GetFirstDaughter()<0) particle->SetFirstDaughter(fNtrack);
+ }
+ else {
+ printf("Error in AliStack::SetTrack: Parent %d does not exist\n",parent);
+ }
}
else {
//
Double_t px, Double_t py, Double_t pz, Double_t e,
Double_t vx, Double_t vy, Double_t vz, Double_t tof,
Double_t polx, Double_t poly, Double_t polz,
- AliMCProcess mech, Int_t &ntr, Float_t weight)
+ AliMCProcess mech, Int_t &ntr, Float_t weight, Int_t is)
{
//
// Load a track on the stack
// it is passed by argument e.
- const Int_t kS=0;
const Int_t kFirstDaughter=-1;
const Int_t kLastDaughter=-1;
TClonesArray &particles = *fParticles;
TParticle* particle
= new(particles[fLoadPoint++])
- TParticle(pdg, kS, parent, -1, kFirstDaughter, kLastDaughter,
+ TParticle(pdg, is, parent, -1, kFirstDaughter, kLastDaughter,
px, py, pz, e, vx, vy, vz, tof);
particle->SetPolarisation(polx, poly, polz);
if(parent>=0) {
particle = (TParticle*) fParticleMap->At(parent);
- particle->SetLastDaughter(fNtrack);
- if(particle->GetFirstDaughter()<0) particle->SetFirstDaughter(fNtrack);
+ if (particle) {
+ particle->SetLastDaughter(fNtrack);
+ if(particle->GetFirstDaughter()<0) particle->SetFirstDaughter(fNtrack);
+ }
+ else {
+ printf("Error in AliStack::SetTrack: Parent %d does not exist\n",parent);
+ }
}
else {
//
TParticle* track = GetNextParticle();
-// cout << "GetNextTrack():" << fCurrent << fNprimary << endl;
+// cout << "GetNextTrack():" << fCurrent << fNprimary << endl;
if(track) {
mtrack=fCurrent;
polar[2]=pol.Z();
tof=track->T();
track->SetBit(kDoneBit);
- //cout << "Filled params" << endl;
+// cout << "Filled params" << endl;
}
else
mtrack=-1;
if(i<=fHgwmk) map[i]=i ;
else {
map[i] = -99;
- if((part=(TParticle*) particles.At(i))) {
+ if((part=(TParticle*) particles.At(i))) {
+//
+// Check of this track should be kept for physics reasons
+ if (KeepPhysics(part)) KeepTrack(i);
+//
part->ResetBit(kDaughtersBit);
part->SetFirstDaughter(-1);
part->SetLastDaughter(-1);
fParticleBuffer = (TParticle*) particles.At(i);
fParticleFileMap[i]=(Int_t) fTreeK->GetEntries();
fTreeK->Fill();
- particles[i]=0;
+ particles[i]=fParticleBuffer=0;
}
for (i=nkeep; i<fNtrack; ++i) particles[i]=0;
// delete [] map;
}
+Bool_t AliStack::KeepPhysics(TParticle* part)
+{
+ //
+ // Some particles have to kept on the stack for reasons motivated
+ // by physics analysis. Decision is put here.
+ //
+ Bool_t keep = kFALSE;
+ //
+ // Keep first-generation daughter from primaries with heavy flavor
+ //
+ Int_t parent = part->GetFirstMother();
+ if (parent >= 0 && parent <= fHgwmk) {
+ TParticle* father = (TParticle*) Particles()->At(parent);
+ Int_t kf = father->GetPdgCode();
+ kf = TMath::Abs(kf);
+ Int_t kfl = kf;
+ // meson ?
+ if (kfl > 10) kfl/=100;
+ // baryon
+ if (kfl > 10) kfl/=10;
+ if (kfl > 10) kfl/=10;
+ if (kfl >= 4) {
+ keep = kTRUE;
+ }
+ }
+ return keep;
+}
+
//_____________________________________________________________________________
void AliStack::FinishEvent()
{
fParticleBuffer = (TParticle*) part;
fParticleFileMap[i]= (Int_t) fTreeK->GetEntries();
fTreeK->Fill();
- (*fParticleMap)[i]=0;
+ //PH (*fParticleMap)[i]=fParticleBuffer=0;
+ fParticleBuffer=0;
+ fParticleMap->AddAt(0,i);
// When all primaries were filled no particle!=0
// should be left => to be removed later.
// To be removed later and replaced with break.
if(!allFilled) allFilled = kTRUE;
}
- //cout << "Nof particles: " << fNtrack << endl;
+// cout << "Nof particles: " << fNtrack << endl;
//Reset();
}
// Resets stack arrays
//
- fParticles->Clear();
- fParticleMap->Clear();
- if (size>0) fParticleMap->Expand(size);
+ if (fParticles)
+ fParticles->Clear();
+ else
+ fParticles = new TClonesArray("TParticle",1000);
+ if (fParticleMap) {
+ fParticleMap->Clear();
+ if (size>0) fParticleMap->Expand(size);}
+ else
+ fParticleMap = new TObjArray(size);
}
//_____________________________________________________________________________
//
// Return particle with specified ID
- if(!(*fParticleMap)[i]) {
- Int_t nentries = fParticles->GetEntries();
+ //PH if(!(*fParticleMap)[i]) {
+ if(!fParticleMap->At(i)) {
+ Int_t nentries = fParticles->GetEntriesFast();
// algorithmic way of getting entry index
// (primary particles are filled after secondaries)
Int_t entry;
new ((*fParticles)[nentries]) TParticle(*fParticleBuffer);
fParticleMap->AddAt((*fParticles)[nentries],i);
}
- return (TParticle *) (*fParticleMap)[i];
+ //PH return (TParticle *) (*fParticleMap)[i];
+ return (TParticle *) fParticleMap->At(i);
}
//_____________________________________________________________________________
-Int_t AliStack::GetPrimary(Int_t id) const
+Int_t AliStack::GetPrimary(Int_t id)
{
//
// Return number of primary that has generated track
//
int current, parent;
- TParticle *part;
//
parent=id;
while (1) {
current=parent;
- part = (TParticle *)fParticleMap->At(current);
- parent=part->GetFirstMother();
+ parent=Particle(current)->GetFirstMother();
if(parent<0) return current;
}
}
// Dumps particle i in the stack
//
- ((TParticle*) (*fParticleMap)[i])->Print();
+ //PH ((TParticle*) (*fParticleMap)[i])->Print();
+ ((TParticle*) fParticleMap->At(i))->Print();
}
//_____________________________________________________________________________
// Dumps the particle stack
//
+ Int_t i;
+
printf(
"\n\n=======================================================================\n");
- for (Int_t i=0;i<fNtrack;i++)
+ for (i=0;i<fNtrack;i++)
{
TParticle* particle = Particle(i);
if (particle) {
// print particle file map
printf("\nParticle file map: \n");
- for (Int_t i=0; i<fNtrack; i++)
+ for (i=0; i<fNtrack; i++)
printf(" %d th entry: %d \n",i,fParticleFileMap[i]);
}
TBranch *branch=0;
// Make Kinematics Tree
char hname[30];
- // printf("\n MakeTree called %d", event);
if (!fTreeK) {
sprintf(hname,"TreeK%d",event);
fTreeK = new TTree(hname,"Kinematics");
// Create a branch for particles
- branch = fTreeK->Branch("Particles", "TParticle", &fParticleBuffer, 4000, 1);
+ branch = fTreeK->Branch("Particles", "TParticle", &fParticleBuffer, 4000);
fTreeK->Write(0,TObject::kOverwrite);
}
}
+//_____________________________________________________________________________
void AliStack::BeginEvent(Int_t event)
{
// start a new event
}
}
+//_____________________________________________________________________________
void AliStack::FinishRun()
{
// Clean TreeK information
}
}
-void AliStack::GetEvent(Int_t event)
+Bool_t AliStack::GetEvent(Int_t event)
{
//
// Get new event from TreeK
+
// Reset/Create the particle stack
if (fTreeK) delete fTreeK;
sprintf(treeName,"TreeK%d",event);
fTreeK = (TTree*)gDirectory->Get(treeName);
- if (fTreeK) fTreeK->SetBranchAddress("Particles", &fParticleBuffer);
-
- else
- Error("GetEvent","cannot find Kine Tree for event:%d\n",event);
-//
-// printf("\n primaries %d", fNprimary);
-// printf("\n tracks %d", fNtrack);
-//
+ if (fTreeK)
+ fTreeK->SetBranchAddress("Particles", &fParticleBuffer);
+ else {
+ // Error("GetEvent","cannot find Kine Tree for event:%d\n",event);
+ Warning("GetEvent","cannot find Kine Tree for event:%d\n",event);
+ return kFALSE;
+ }
+// printf("\n primaries %d", fNprimary);
+// printf("\n tracks %d", fNtrack);
+
Int_t size = (Int_t)fTreeK->GetEntries();
ResetArrays(size);
+ return kTRUE;
}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff