* provided "as is" without express or implied warranty. *
**************************************************************************/
-/*
-$Log$
-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
-
-Revision 1.1 2001/05/16 14:57:22 alibrary
-New files for folders and Stack
-
-*/
+/* $Id$ */
///////////////////////////////////////////////////////////////////////////////
// //
// //
///////////////////////////////////////////////////////////////////////////////
-#include <iostream.h>
+#include <TFile.h>
+#include <TFolder.h>
#include <TObjArray.h>
#include <TParticle.h>
+#include <TParticlePDG.h>
#include <TTree.h>
-#include <TFile.h>
-#include <TFolder.h>
-#include <TROOT.h>
-#include "AliStack.h"
-#include "AliRun.h"
-#include "AliModule.h"
#include "AliHit.h"
-//#include "ETrackBits.h"
+#include "AliModule.h"
+#include "AliRun.h"
+#include "AliRunLoader.h"
+#include "AliStack.h"
ClassImp(AliStack)
-//_____________________________________________________________________________
-AliStack::AliStack(Int_t size)
+//_______________________________________________________________________
+AliStack::AliStack():
+ fParticles(0),
+ fParticleMap(0),
+ fParticleFileMap(0),
+ fParticleBuffer(0),
+ fTreeK(0),
+ fNtrack(0),
+ fNprimary(0),
+ fCurrent(-1),
+ fCurrentPrimary(-1),
+ fHgwmk(0),
+ fLoadPoint(0),
+ fEventFolderName(AliConfig::fgkDefaultEventFolderName)
{
//
- // Constructor
+ // Default constructor
//
-
- // Create the particles arrays
- fParticles = new TClonesArray("TParticle",1000);
- fParticleMap = new TObjArray(size);
- fParticleBuffer = new TParticle();
- fNtrack = 0;
- fNprimary = 0;
- fCurrent = -1;
- fCurrentPrimary = -1;
- fTreeK = 0;
}
+//_______________________________________________________________________
+AliStack::AliStack(Int_t size, const char* evfoldname):
+ fParticles(new TClonesArray("TParticle",1000)),
+ fParticleMap(new TObjArray(size)),
+ fParticleFileMap(0),
+ fParticleBuffer(0),
+ fTreeK(0),
+ fNtrack(0),
+ fNprimary(0),
+ fCurrent(-1),
+ fCurrentPrimary(-1),
+ fHgwmk(0),
+ fLoadPoint(0),
+ fEventFolderName(evfoldname)
+{
+ //
+ // Constructor
+ //
+}
-//_____________________________________________________________________________
-AliStack::AliStack()
+//_______________________________________________________________________
+AliStack::AliStack(const AliStack& st):
+ TVirtualMCStack(st),
+ fParticles(0),
+ fParticleMap(0),
+ fParticleFileMap(0),
+ fParticleBuffer(0),
+ fTreeK(0),
+ fNtrack(0),
+ fNprimary(0),
+ fCurrent(-1),
+ fCurrentPrimary(-1),
+ fHgwmk(0),
+ fLoadPoint(0)
{
//
- // Default constructor
+ // Copy constructor
//
-
- // Create the particles arrays
- fParticles = new TClonesArray("TParticle",1000);
- fParticleMap = new TObjArray(10000);
- fParticleBuffer = new TParticle();
- fNtrack = 0;
- fCurrent = -1;
- fNprimary = 0;
- fCurrentPrimary = -1;
- fTreeK = 0;
+ st.Copy(*this);
}
+//_______________________________________________________________________
+void AliStack::Copy(AliStack&) const
+{
+ Fatal("Copy","Not implemented!\n");
+}
-//_____________________________________________________________________________
+//_______________________________________________________________________
AliStack::~AliStack()
{
//
// Destructor
//
- delete fParticleBuffer;
if (fParticles) {
fParticles->Delete();
delete fParticles;
}
delete fParticleMap;
- delete fTreeK;
+ //PH??? 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)
+void AliStack::PushTrack(Int_t done, Int_t parent, Int_t pdg, Float_t *pmom,
+ Float_t *vpos, Float_t *polar, Float_t tof,
+ TMCProcess mech, Int_t &ntr, Float_t weight, Int_t is)
{
//
// Load a track on the stack
// ntr on output the number of the track stored
//
- Float_t mass;
- const Int_t kfirstdaughter=-1;
- const Int_t klastdaughter=-1;
- const Int_t kS=0;
// const Float_t tlife=0;
//
// also, this method is potentially dangerous if the mass
// used in the MC is not the same of the PDG database
//
- mass = TDatabasePDG::Instance()->GetParticle(pdg)->Mass();
- 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);
-
- TClonesArray &particles = *fParticles;
- TParticle* particle
- = new(particles[fLoadPoint++])
- TParticle(pdg, kS, 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);
- particle->SetUniqueID(mech);
- if(!done) particle->SetBit(kDoneBit);
-
+ TParticlePDG* pmc = TDatabasePDG::Instance()->GetParticle(pdg);
+ if (pmc) {
+ Float_t mass = TDatabasePDG::Instance()->GetParticle(pdg)->Mass();
+ 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);
- // Declare that the daughter information is valid
- particle->SetBit(kDaughtersBit);
- // Add the particle to the stack
- fParticleMap->AddAtAndExpand(particle, fNtrack);
- if(parent>=0) {
- particle = (TParticle*) fParticleMap->At(parent);
- particle->SetLastDaughter(fNtrack);
- if(particle->GetFirstDaughter()<0) particle->SetFirstDaughter(fNtrack);
- }
- else {
- //
- // This is a primary track. Set high water mark for this event
- fHgwmk = fNtrack;
- //
- // Set also number if primary tracks
- fNprimary = fHgwmk+1;
- fCurrentPrimary++;
- }
- ntr = fNtrack++;
+ PushTrack(done, parent, pdg, pmom[0], pmom[1], pmom[2], e,
+ vpos[0], vpos[1], vpos[2], tof, polar[0], polar[1], polar[2],
+ mech, ntr, weight, is);
+ } else {
+ Warning("PushTrack", "Particle type %d not defined in PDG Database !\n", pdg);
+ Warning("PushTrack", "Particle skipped !\n");
+ }
}
//_____________________________________________________________________________
-void AliStack::SetTrack(Int_t done, Int_t parent, Int_t pdg,
+void AliStack::PushTrack(Int_t done, Int_t parent, Int_t pdg,
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)
+ TMCProcess mech, Int_t &ntr, Double_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);
fParticleMap->AddAtAndExpand(particle, fNtrack);//CHECK!!
if(parent>=0) {
- particle = (TParticle*) fParticleMap->At(parent);
- particle->SetLastDaughter(fNtrack);
- if(particle->GetFirstDaughter()<0) particle->SetFirstDaughter(fNtrack);
+ particle = dynamic_cast<TParticle*>(fParticleMap->At(parent));
+ if (particle) {
+ particle->SetLastDaughter(fNtrack);
+ if(particle->GetFirstDaughter()<0) particle->SetFirstDaughter(fNtrack);
+ }
+ else {
+ printf("Error in AliStack::PushTrack: Parent %d does not exist\n",parent);
+ }
}
else {
//
}
//_____________________________________________________________________________
-void AliStack::GetNextTrack(Int_t &mtrack, Int_t &ipart, Float_t *pmom,
- Float_t &e, Float_t *vpos, Float_t *polar,
- Float_t &tof)
+TParticle* AliStack::PopNextTrack(Int_t& itrack)
{
//
- // Return next track from stack of particles
+ // Returns next track from stack of particles
//
TParticle* track = GetNextParticle();
-// cout << "GetNextTrack():" << fCurrent << fNprimary << endl;
-
- if(track) {
- mtrack=fCurrent;
- ipart=track->GetPdgCode();
- pmom[0]=track->Px();
- pmom[1]=track->Py();
- pmom[2]=track->Pz();
- e =track->Energy();
- vpos[0]=track->Vx();
- vpos[1]=track->Vy();
- vpos[2]=track->Vz();
- TVector3 pol;
- track->GetPolarisation(pol);
- polar[0]=pol.X();
- polar[1]=pol.Y();
- polar[2]=pol.Z();
- tof=track->T();
- track->SetBit(kDoneBit);
- //cout << "Filled params" << endl;
- }
- else
- mtrack=-1;
- //
- // stop and start timer when we start a primary track
- Int_t nprimaries = fNprimary;
- if (fCurrent >= nprimaries) return;
- if (fCurrent < nprimaries-1) {
- fTimer.Stop();
- track=(TParticle*) fParticleMap->At(fCurrent+1);
- // track->SetProcessTime(fTimer.CpuTime());
+ if (track) {
+ itrack = fCurrent;
+ track->SetBit(kDoneBit);
}
- fTimer.Start();
+ else
+ itrack = -1;
+
+ fCurrentTrack = track;
+ return track;
}
+//_____________________________________________________________________________
+TParticle* AliStack::PopPrimaryForTracking(Int_t i)
+{
+ //
+ // Returns i-th primary particle if it is flagged to be tracked,
+ // 0 otherwise
+ //
+
+ TParticle* particle = Particle(i);
+
+ if (!particle->TestBit(kDoneBit))
+ return particle;
+ else
+ return 0;
+}
//_____________________________________________________________________________
void AliStack::PurifyKine()
if(i<=fHgwmk) map[i]=i ;
else {
map[i] = -99;
- if((part=(TParticle*) particles.At(i))) {
+ if((part=dynamic_cast<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);
// Invalid daughter information for the parent of the first particle
// generated. This may or may not be the current primary according to
// whether decays have been recorded among the primaries
- part = (TParticle *)particles.At(fHgwmk+1);
+ part = dynamic_cast<TParticle*>(particles.At(fHgwmk+1));
particles.At(part->GetFirstMother())->ResetBit(kDaughtersBit);
// Second pass, build map between old and new numbering
for(i=fHgwmk+1; i<fNtrack; i++) {
map[i]=nkeep;
// If old and new are different, have to move the pointer
if(i!=nkeep) particles[nkeep]=particles.At(i);
- part = (TParticle*) particles.At(nkeep);
+ part = dynamic_cast<TParticle*>(particles.At(nkeep));
// as the parent is always *before*, it must be already
// in place. This is what we are checking anyway!
// Fix daughters information
for (i=fHgwmk+1; i<nkeep; i++) {
- part = (TParticle *)particles.At(i);
+ part = dynamic_cast<TParticle*>(particles.At(i));
parent = part->GetFirstMother();
if(parent>=0) {
- father = (TParticle *)particles.At(parent);
+ father = dynamic_cast<TParticle*>(particles.At(parent));
if(father->TestBit(kDaughtersBit)) {
if(i<father->GetFirstDaughter()) father->SetFirstDaughter(i);
TList* hitLists = gAlice->GetHitLists();
TIter next(hitLists);
TCollection *hitList;
- while((hitList = (TCollection*)next())) {
+ while((hitList = dynamic_cast<TCollection*>(next()))) {
TIter nexthit(hitList);
AliHit *hit;
- while((hit = (AliHit*)nexthit())) {
+ while((hit = dynamic_cast<AliHit*>(nexthit()))) {
hit->SetTrack(map[hit->GetTrack()]);
}
}
// This for detectors which have a special mapping mechanism
// for hits, such as TPC and TRD
//
-
+
TObjArray* modules = gAlice->Modules();
TIter nextmod(modules);
AliModule *detector;
- while((detector = (AliModule*)nextmod())) {
+ while((detector = dynamic_cast<AliModule*>(nextmod()))) {
detector->RemapTrackHitIDs(map.GetArray());
+ detector->RemapTrackReferencesIDs(map.GetArray());
}
-
+ //
+ gAlice->RemapTrackReferencesIDs(map.GetArray());
+
// Now the output bit, from fHgwmk to nkeep we write everything and we erase
if(nkeep>fParticleFileMap.GetSize()) fParticleFileMap.Set(Int_t (nkeep*1.5));
for (i=fHgwmk+1; i<nkeep; ++i) {
- fParticleBuffer = (TParticle*) particles.At(i);
- fParticleFileMap[i]=(Int_t) fTreeK->GetEntries();
- fTreeK->Fill();
- particles[i]=0;
- }
+ fParticleBuffer = dynamic_cast<TParticle*>(particles.At(i));
+ fParticleFileMap[i]=static_cast<Int_t>(TreeK()->GetEntries());
+ TreeK()->Fill();
+ 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 = dynamic_cast<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()
{
- //
- // Write out the kinematics that was not yet filled
- //
+//
+// Write out the kinematics that was not yet filled
+//
- // Update event header
+// Update event header
- if (!fTreeK) {
+ if (!TreeK()) {
// Fatal("FinishEvent", "No kinematics tree is defined.");
// Don't panic this is a probably a lego run
return;
-
}
CleanParents();
- if(fTreeK->GetEntries() ==0) {
+ if(TreeK()->GetEntries() ==0) {
// set the fParticleFileMap size for the first time
fParticleFileMap.Set(fHgwmk+1);
}
TObject *part;
for(Int_t i=0; i<fHgwmk+1; ++i)
if((part=fParticleMap->At(i))) {
- fParticleBuffer = (TParticle*) part;
- fParticleFileMap[i]= (Int_t) fTreeK->GetEntries();
- fTreeK->Fill();
- (*fParticleMap)[i]=0;
+ fParticleBuffer = dynamic_cast<TParticle*>(part);
+ fParticleFileMap[i]= static_cast<Int_t>(TreeK()->GetEntries());
+ TreeK()->Fill();
+ //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.
if (allFilled) printf("Why != 0 part # %d?\n",i);
}
- else {
+ else
+ {
// // printf("Why = 0 part # %d?\n",i); => We know.
// break;
- // we don't break now in order to be sure there is no
- // particle !=0 left.
- // To be removed later and replaced with break.
- if(!allFilled) allFilled = kTRUE;
- }
- //cout << "Nof particles: " << fNtrack << endl;
- //Reset();
+ // we don't break now in order to be sure there is no
+ // particle !=0 left.
+ // To be removed later and replaced with break.
+ if(!allFilled) allFilled = kTRUE;
+ }
}
-
//_____________________________________________________________________________
+
void AliStack::FlagTrack(Int_t track)
{
//
Int_t curr=track;
while(1) {
- particle=(TParticle*)fParticleMap->At(curr);
+ particle=dynamic_cast<TParticle*>(fParticleMap->At(curr));
// If the particle is flagged the three from here upward is saved already
if(particle->TestBit(kKeepBit)) return;
//
// Resets stack
//
-
+
fNtrack=0;
fNprimary=0;
fHgwmk=0;
fLoadPoint=0;
fCurrent = -1;
+ fTreeK = 0x0;
ResetArrays(size);
}
// 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);
}
//_____________________________________________________________________________
-void AliStack::SetHighWaterMark(Int_t nt)
+void AliStack::SetHighWaterMark(Int_t)
{
//
// Set high water mark for last track in event
//
// 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;
- if (i<fNprimary)
- entry = i+fNtrack-fNprimary;
- else
- entry = i-fNprimary;
+ Int_t entry = TreeKEntry(i);
// check whether algorithmic way and
// and the fParticleFileMap[i] give the same;
// give the fatal error if not
entry, fParticleFileMap[i]);
}
- fTreeK->GetEntry(entry);
+ TreeK()->GetEntry(entry);
new ((*fParticles)[nentries]) TParticle(*fParticleBuffer);
fParticleMap->AddAt((*fParticles)[nentries],i);
}
- return (TParticle *) (*fParticleMap)[i];
+ //PH return dynamic_cast<TParticle *>((*fParticleMap)[i]);
+ return dynamic_cast<TParticle*>(fParticleMap->At(i));
}
//_____________________________________________________________________________
-Int_t AliStack::GetPrimary(Int_t id) const
+TParticle* AliStack::ParticleFromTreeK(Int_t id) const
+{
+//
+// return pointer to TParticle with label id
+//
+ Int_t entry;
+ if ((entry = TreeKEntry(id)) < 0) return 0;
+ if (fTreeK->GetEntry(entry)<=0) return 0;
+ return fParticleBuffer;
+}
+
+//_____________________________________________________________________________
+Int_t AliStack::TreeKEntry(Int_t id) const
+{
+//
+// return entry number in the TreeK for particle with label id
+// return negative number if label>fNtrack
+//
+ Int_t entry;
+ if (id<fNprimary)
+ entry = id+fNtrack-fNprimary;
+ else
+ entry = id-fNprimary;
+ return entry;
+}
+
+//_____________________________________________________________________________
+Int_t AliStack::GetCurrentParentTrackNumber() const
+{
+ //
+ // Return number of the parent of the current track
+ //
+
+ TParticle* current = (TParticle*)fParticleMap->At(fCurrent);
+
+ if (current)
+ return current->GetFirstMother();
+ else {
+ Warning("GetCurrentParentTrackNumber", "Current track not found in the stack");
+ return -1;
+ }
+}
+
+//_____________________________________________________________________________
+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 dynamic_cast<TParticle*>((*fParticleMap)[i])->Print();
+ dynamic_cast<TParticle*>(fParticleMap->At(i))->Print();
}
//_____________________________________________________________________________
Int_t i;
- printf(
- "\n\n=======================================================================\n");
+ printf("\n\n=======================================================================\n");
for (i=0;i<fNtrack;i++)
{
TParticle* particle = Particle(i);
Warning("DumpPStack", "No particle with id %d.", i);
}
- printf(
- "\n=======================================================================\n\n");
+ printf("\n=======================================================================\n\n");
// print particle file map
printf("\nParticle file map: \n");
"\n\n=======================================================================\n");
for (Int_t i=0;i<fNtrack;i++)
{
- TParticle* particle = (TParticle*) particles[i];
+ TParticle* particle = dynamic_cast<TParticle*>(particles[i]);
if (particle) {
printf("-> %d ",i); particle->Print();
printf("--------------------------------------------------------------\n");
TParticle *part;
int i;
for(i=0; i<fHgwmk+1; i++) {
- part = (TParticle *)particles.At(i);
+ part = dynamic_cast<TParticle*>(particles.At(i));
if(part) if(!part->TestBit(kDaughtersBit)) {
part->SetFirstDaughter(-1);
part->SetLastDaughter(-1);
// search secondaries
//for(Int_t i=fNtrack-1; i>=0; i--) {
for(Int_t i=fNtrack-1; i>fHgwmk; i--) {
- particle = (TParticle*) fParticleMap->At(i);
+ particle = dynamic_cast<TParticle*>(fParticleMap->At(i));
if ((particle) && (!particle->TestBit(kDoneBit))) {
fCurrent=i;
- //cout << "GetNextParticle() - secondary "
- // << fNtrack << " " << fHgwmk << " " << fCurrent << endl;
return particle;
}
}
// take next primary if all secondaries were done
while (fCurrentPrimary>=0) {
fCurrent = fCurrentPrimary;
- particle = (TParticle*) fParticleMap->At(fCurrentPrimary--);
+ particle = dynamic_cast<TParticle*>(fParticleMap->At(fCurrentPrimary--));
if ((particle) && (!particle->TestBit(kDoneBit))) {
- //cout << "GetNextParticle() - primary "
- // << fNtrack << " " << fHgwmk << " " << fCurrent << endl;
return particle;
}
}
// nothing to be tracked
fCurrent = -1;
- //cout << "GetNextParticle() - none "
- // << fNtrack << " " << fHgwmk << " " << fCurrent << endl;
return particle;
}
+//__________________________________________________________________________________________
+TTree* AliStack::TreeK()
+{
+//returns TreeK
+ if (fTreeK)
+ {
+ return fTreeK;
+ }
+ else
+ {
+ AliRunLoader *rl = AliRunLoader::GetRunLoader(fEventFolderName);
+ if (rl == 0x0)
+ {
+ Fatal("TreeK","Can not get RunLoader from event folder named %s",fEventFolderName.Data());
+ return 0x0;//pro forma
+ }
+ fTreeK = rl->TreeK();
+ if ( fTreeK == 0x0)
+ {
+ Error("TreeK","Can not get TreeK from RL. Ev. Folder is %s",fEventFolderName.Data());
+ }
+ else
+ {
+ ConnectTree();
+ }
+ }
+ return fTreeK;//never reached
+}
//__________________________________________________________________________________________
-void AliStack::MakeTree(Int_t event, const char *file)
+
+void AliStack::ConnectTree()
{
//
-// Make Kine tree and creates branch for writing particles
-//
- 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);
- fTreeK->Write(0,TObject::kOverwrite);
- }
+// Creates branch for writing particles
+//
+ if (AliLoader::fgDebug) Info("ConnectTree","Connecting TreeK");
+ if (fTreeK == 0x0)
+ {
+ if (TreeK() == 0x0)
+ {
+ Fatal("ConnectTree","Parameter is NULL");//we don't like such a jokes
+ return;
+ }
+ return;//in this case TreeK() calls back this method (ConnectTree)
+ //tree after setting fTreeK, the rest was already executed
+ //it is safe to return now
+ }
+
+ // Create a branch for particles
+
+ if (AliLoader::fgDebug)
+ Info("ConnectTree","Tree name is %s",fTreeK->GetName());
+
+ if (fTreeK->GetDirectory())
+ {
+ if (AliLoader::fgDebug)
+ Info("ConnectTree","and dir is %s",fTreeK->GetDirectory()->GetName());
+ }
+ else
+ Warning("ConnectTree","DIR IS NOT SET !!!");
+
+ TBranch *branch=fTreeK->GetBranch(AliRunLoader::fgkKineBranchName);
+ if(branch == 0x0)
+ {
+ branch = fTreeK->Branch(AliRunLoader::fgkKineBranchName, "TParticle", &fParticleBuffer, 4000);
+ if (AliLoader::fgDebug) Info("ConnectTree","Creating Branch in Tree");
+ }
+ else
+ {
+ if (AliLoader::fgDebug) Info("ConnectTree","Branch Found in Tree");
+ branch->SetAddress(&fParticleBuffer);
+ }
+ if (branch->GetDirectory())
+ {
+ if (AliLoader::fgDebug)
+ Info("ConnectTree","Branch Dir Name is %s",branch->GetDirectory()->GetName());
+ }
+ else
+ Warning("ConnectTree","Branch Dir is NOT SET");
}
+//__________________________________________________________________________________________
-//_____________________________________________________________________________
-void AliStack::BeginEvent(Int_t event)
+
+void AliStack::BeginEvent()
{
// start a new event
-//
-//
- fNprimary = 0;
- fNtrack = 0;
-
- char hname[30];
- if(fTreeK) {
- fTreeK->Reset();
- sprintf(hname,"TreeK%d",event);
- fTreeK->SetName(hname);
- }
+ Reset();
}
//_____________________________________________________________________________
void AliStack::FinishRun()
{
// Clean TreeK information
- if (fTreeK) {
- delete fTreeK; fTreeK = 0;
- }
}
-
//_____________________________________________________________________________
-void AliStack::GetEvent(Int_t event)
+
+Bool_t AliStack::GetEvent()
{
//
// Get new event from TreeK
- // Reset/Create the particle stack
- if (fTreeK) delete fTreeK;
-
- // Get Kine Tree from file
- char treeName[20];
- sprintf(treeName,"TreeK%d",event);
- fTreeK = (TTree*)gDirectory->Get(treeName);
- if (fTreeK) fTreeK->SetBranchAddress("Particles", &fParticleBuffer);
+ // Reset/Create the particle stack
+ fTreeK = 0x0;
- else
- Error("GetEvent","cannot find Kine Tree for event:%d\n",event);
-//
-// printf("\n primaries %d", fNprimary);
-// printf("\n tracks %d", fNtrack);
-//
- Int_t size = (Int_t)fTreeK->GetEntries();
+ if (TreeK() == 0x0) //forces connecting
+ {
+ Error("GetEvent","cannot find Kine Tree for current event\n");
+ return kFALSE;
+ }
+
+ Int_t size = (Int_t)TreeK()->GetEntries();
ResetArrays(size);
+ return kTRUE;
+}
+//_____________________________________________________________________________
+
+void AliStack::SetEventFolderName(const char* foldname)
+{
+ //Sets event folder name
+ fEventFolderName = foldname;
}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff