///////////////////////////////////////////////////////////////////////////////
// //
-// Particles stack class
+// Particles stack class //
+// Implements the TMCVirtualStack of the Virtual Monte Carlo //
+// Holds the particles transported during simulation //
+// Is used to compare results of reconstruction with simulation //
+// Author A.Morsch //
// //
///////////////////////////////////////////////////////////////////////////////
-#include <TFile.h>
-#include <TFolder.h>
+#include <TClonesArray.h>
#include <TObjArray.h>
+#include <TPDGCode.h>
#include <TParticle.h>
#include <TParticlePDG.h>
#include <TTree.h>
+#include "AliLog.h"
#include "AliHit.h"
#include "AliModule.h"
#include "AliRun.h"
fParticleMap(0),
fParticleFileMap(0),
fParticleBuffer(0),
+ fCurrentTrack(0),
fTreeK(0),
fNtrack(0),
fNprimary(0),
fCurrentPrimary(-1),
fHgwmk(0),
fLoadPoint(0),
- fEventFolderName(AliConfig::fgkDefaultEventFolderName)
+ fEventFolderName(AliConfig::GetDefaultEventFolderName())
{
//
// Default constructor
fParticleMap(new TObjArray(size)),
fParticleFileMap(0),
fParticleBuffer(0),
+ fCurrentTrack(0),
fTreeK(0),
fNtrack(0),
fNprimary(0),
//_______________________________________________________________________
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)
+ TVirtualMCStack(st),
+ fParticles(new TClonesArray("TParticle",1000)),
+ fParticleMap(new TObjArray(*st.Particles())),
+ fParticleFileMap(st.fParticleFileMap),
+ fParticleBuffer(0),
+ fCurrentTrack(0),
+ fTreeK((TTree*)(st.fTreeK->Clone())),
+ fNtrack(st.GetNtrack()),
+ fNprimary(st.GetNprimary()),
+ fCurrent(-1),
+ fCurrentPrimary(-1),
+ fHgwmk(0),
+ fLoadPoint(0),
+ fEventFolderName(0)
{
- //
- // Copy constructor
- //
- st.Copy(*this);
+ // Copy constructor
+ ConnectTree();
}
+
//_______________________________________________________________________
-void AliStack::Copy(AliStack&) const
+void AliStack::Copy(TObject&) const
{
- Fatal("Copy","Not implemented!\n");
+ AliFatal("Not implemented!");
}
//_______________________________________________________________________
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");
+ AliWarning(Form("Particle type %d not defined in PDG Database !", pdg));
+ AliWarning("Particle skipped !");
}
}
const Int_t kFirstDaughter=-1;
const Int_t kLastDaughter=-1;
-
+
+
TClonesArray &particles = *fParticles;
TParticle* particle
= new(particles[fLoadPoint++])
// Declare that the daughter information is valid
particle->SetBit(kDaughtersBit);
// Add the particle to the stack
+
+
fParticleMap->AddAtAndExpand(particle, fNtrack);//CHECK!!
if(parent>=0) {
if(particle->GetFirstDaughter()<0) particle->SetFirstDaughter(fNtrack);
}
else {
- printf("Error in AliStack::PushTrack: Parent %d does not exist\n",parent);
+ AliError(Form("Parent %d does not exist",parent));
}
}
else {
TArrayI map(particles.GetLast()+1);
// Save in Header total number of tracks before compression
-
// If no tracks generated return now
if(fHgwmk+1 == fNtrack) return;
// First pass, invalid Daughter information
- for(i=0; i<fNtrack; i++) {
+ for(i=0; i<fNtrack; i++) {
// Preset map, to be removed later
if(i<=fHgwmk) map[i]=i ;
else {
}
}
}
+
// Now loop on all registered hit lists
TList* hitLists = gAlice->GetMCApp()->GetHitLists();
TIter next(hitLists);
TCollection *hitList;
+
while((hitList = dynamic_cast<TCollection*>(next()))) {
TIter nexthit(hitList);
AliHit *hit;
+
while((hit = dynamic_cast<AliHit*>(nexthit()))) {
- hit->SetTrack(map[hit->GetTrack()]);
+ hit->SetTrack(map[hit->GetTrack()]);
}
}
Int_t toshrink = fNtrack-fHgwmk-1;
fLoadPoint-=toshrink;
+
+
for(i=fLoadPoint; i<fLoadPoint+toshrink; ++i) fParticles->RemoveAt(i);
fNtrack=nkeep;
fHgwmk=nkeep-1;
- // delete [] map;
+}
+
+void AliStack::ReorderKine()
+{
+//
+// In some transport code children might not come in a continuous sequence.
+// In this case the stack has to be reordered in order to establish the
+// mother daughter relation using index ranges.
+//
+ if(fHgwmk+1 == fNtrack) return;
+
+ //
+ // Howmany secondaries have been produced ?
+ Int_t nNew = fNtrack - fHgwmk - 1;
+
+ if (nNew > 0) {
+ Int_t i, j;
+ TObjArray &particles = *fParticleMap;
+ TArrayI map1(nNew);
+ //
+ // Copy pointers to temporary array
+ TParticle** tmp = new TParticle*[nNew];
+
+ for (i = 0; i < nNew; i++) {
+ if (particles.At(fHgwmk + 1 + i)) {
+ tmp[i] = (TParticle*) (particles.At(fHgwmk + 1 + i));
+ } else {
+ tmp[i] = 0x0;
+ }
+ map1[i] = -99;
+ }
+
+
+ //
+ // Reset LoadPoint
+ //
+ fLoadPoint = fHgwmk + 1;
+ //
+ // Re-Push particles into stack
+ // The outer loop is over parents, the inner over children.
+ // -1 refers to the primary particle
+ //
+ for (i = -1; i < nNew-1; i++) {
+ Int_t ipa;
+ TParticle* parP;
+ if (i == -1) {
+ ipa = tmp[0]->GetFirstMother();
+ parP =dynamic_cast<TParticle*>(particles.At(ipa));
+ } else {
+ ipa = (fHgwmk + 1 + i);
+ // Skip deleted particles
+ if (!tmp[i]) continue;
+ // Skip particles without children
+ if (tmp[i]->GetFirstDaughter() == -1) continue;
+ parP = tmp[i];
+ }
+ // Reset daughter information
+
+ Int_t idaumin = parP->GetFirstDaughter() - fHgwmk - 1;
+ Int_t idaumax = parP->GetLastDaughter() - fHgwmk - 1;
+ parP->SetFirstDaughter(-1);
+ parP->SetLastDaughter(-1);
+ for (j = idaumin; j <= idaumax; j++) {
+ // Skip deleted particles
+ if (!tmp[j]) continue;
+ // Skip particles already handled
+ if (map1[j] != -99) continue;
+ Int_t jpa = tmp[j]->GetFirstMother();
+ // Check if daughter of current parent
+ if (jpa == ipa) {
+ particles[fLoadPoint] = tmp[j];
+ // Re-establish daughter information
+ parP->SetLastDaughter(fLoadPoint);
+ if (parP->GetFirstDaughter() == -1) parP->SetFirstDaughter(fLoadPoint);
+ // Set Mother information
+ if (i != -1) {
+ tmp[j]->SetFirstMother(map1[i]);
+ }
+ // Build the map
+ map1[j] = fLoadPoint;
+ // Increase load point
+ fLoadPoint++;
+ }
+ } // children
+ } // parents
+
+ delete[] tmp;
+
+ //
+ // Build map for remapping of hits
+ //
+ TArrayI map(fNtrack);
+ for (i = 0; i < fNtrack; i ++) {
+ if (i <= fHgwmk) {
+ map[i] = i;
+ } else{
+ map[i] = map1[i - fHgwmk -1];
+ }
+ }
+
+ // Now loop on all registered hit lists
+
+ TList* hitLists = gAlice->GetMCApp()->GetHitLists();
+ TIter next(hitLists);
+ TCollection *hitList;
+
+ while((hitList = dynamic_cast<TCollection*>(next()))) {
+ TIter nexthit(hitList);
+ AliHit *hit;
+ 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 = dynamic_cast<AliModule*>(nextmod()))) {
+ detector->RemapTrackHitIDs(map.GetArray());
+ detector->RemapTrackReferencesIDs(map.GetArray());
+ }
+ gAlice->GetMCApp()->RemapTrackReferencesIDs(map.GetArray());
+ } // new particles poduced
}
Bool_t AliStack::KeepPhysics(TParticle* part)
// When all primaries were filled no particle!=0
// should be left => to be removed later.
- if (allFilled) printf("Why != 0 part # %d?\n",i);
+ if (allFilled) AliWarning(Form("Why != 0 part # %d?\n",i));
}
else
{
//
// Set high water mark for last track in event
//
-
+
+
fHgwmk = fNtrack-1;
fCurrentPrimary=fHgwmk;
-
// Set also number of primary tracks
fNprimary = fHgwmk+1;
fNtrack = fHgwmk+1;
// and the fParticleFileMap[i] give the same;
// give the fatal error if not
if (entry != fParticleFileMap[i]) {
- Fatal("Particle",
+ AliFatal(Form(
"!! The algorithmic way and map are different: !!\n entry: %d map: %d",
- entry, fParticleFileMap[i]);
+ entry, fParticleFileMap[i]));
}
TreeK()->GetEntry(entry);
if (current)
return current->GetFirstMother();
else {
- Warning("GetCurrentParentTrackNumber", "Current track not found in the stack");
+ AliWarning("Current track not found in the stack");
return -1;
}
}
// nothing to be tracked
fCurrent = -1;
+
+
return particle;
}
//__________________________________________________________________________________________
AliRunLoader *rl = AliRunLoader::GetRunLoader(fEventFolderName);
if (rl == 0x0)
{
- Fatal("TreeK","Can not get RunLoader from event folder named %s",fEventFolderName.Data());
+ AliFatal(Form("Can not get RunLoader from event folder named %s",fEventFolderName.Data()));
return 0x0;//pro forma
}
fTreeK = rl->TreeK();
- if ( fTreeK == 0x0)
+ if ( fTreeK )
{
- Error("TreeK","Can not get TreeK from RL. Ev. Folder is %s",fEventFolderName.Data());
+ ConnectTree();
}
else
{
- ConnectTree();
+ //don't panic - could be Lego
+ AliWarning(Form("Can not get TreeK from RL. Ev. Folder is %s",fEventFolderName.Data()));
}
}
return fTreeK;//never reached
//
// Creates branch for writing particles
//
- if (AliLoader::fgDebug) Info("ConnectTree","Connecting TreeK");
+ AliDebug(1, "Connecting TreeK");
if (fTreeK == 0x0)
{
if (TreeK() == 0x0)
{
- Fatal("ConnectTree","Parameter is NULL");//we don't like such a jokes
+ AliFatal("Parameter is NULL");//we don't like such a jokes
return;
}
return;//in this case TreeK() calls back this method (ConnectTree)
// Create a branch for particles
- if (AliLoader::fgDebug)
- Info("ConnectTree","Tree name is %s",fTreeK->GetName());
+ AliDebug(2, Form("Tree name is %s",fTreeK->GetName()));
if (fTreeK->GetDirectory())
{
- if (AliLoader::fgDebug)
- Info("ConnectTree","and dir is %s",fTreeK->GetDirectory()->GetName());
+ AliDebug(2, Form("and dir is %s",fTreeK->GetDirectory()->GetName()));
}
else
- Warning("ConnectTree","DIR IS NOT SET !!!");
+ AliWarning("DIR IS NOT SET !!!");
- TBranch *branch=fTreeK->GetBranch(AliRunLoader::fgkKineBranchName);
+ TBranch *branch=fTreeK->GetBranch(AliRunLoader::GetKineBranchName());
if(branch == 0x0)
{
- branch = fTreeK->Branch(AliRunLoader::fgkKineBranchName, "TParticle", &fParticleBuffer, 4000);
- if (AliLoader::fgDebug) Info("ConnectTree","Creating Branch in Tree");
+ branch = fTreeK->Branch(AliRunLoader::GetKineBranchName(), "TParticle", &fParticleBuffer, 4000);
+ AliDebug(2, "Creating Branch in Tree");
}
else
{
- if (AliLoader::fgDebug) Info("ConnectTree","Branch Found in Tree");
+ AliDebug(2, "Branch Found in Tree");
branch->SetAddress(&fParticleBuffer);
}
if (branch->GetDirectory())
{
- if (AliLoader::fgDebug)
- Info("ConnectTree","Branch Dir Name is %s",branch->GetDirectory()->GetName());
+ AliDebug(1, Form("Branch Dir Name is %s",branch->GetDirectory()->GetName()));
}
else
- Warning("ConnectTree","Branch Dir is NOT SET");
+ AliWarning("Branch Dir is NOT SET");
}
//__________________________________________________________________________________________
if (TreeK() == 0x0) //forces connecting
{
- Error("GetEvent","cannot find Kine Tree for current event\n");
+ AliError("cannot find Kine Tree for current event");
return kFALSE;
}
//Sets event folder name
fEventFolderName = foldname;
}
+
+Bool_t AliStack::IsStable(Int_t pdg) const
+{
+//
+// Decide whether particle (pdg) is stable
+//
+
+ const Int_t kNstable = 14;
+ Int_t i;
+
+ Int_t pdgStable[kNstable] = {
+ kGamma, // Photon
+ kElectron, // Electron
+ kMuonPlus, // Muon
+ kPiPlus, // Pion
+ kKPlus, // Kaon
+ kProton, // Proton
+ kNeutron, // Neutron
+ kLambda0, // Lambda_0
+ kSigmaMinus, // Sigma Minus
+ kSigma0, // Sigma_0
+ kSigmaPlus, // Sigma Plus
+ 3312, // Xsi Minus
+ 3322, // Xsi
+ 3334, // Omega
+ };
+
+ Bool_t isStable = kFALSE;
+ for (i = 0; i < kNstable; i++) {
+ if (pdg == TMath::Abs(pdgStable[i])) {
+ isStable = kTRUE;
+ break;
+ }
+ }
+
+ return isStable;
+}
+
+Bool_t AliStack::IsPhysicalPrimary(Int_t index)
+{
+ //
+ // Test if a particle is a physical primary according to the following definition:
+ // Particles produced in the collision including products of strong and
+ // electromagnetic decay and excluding feed-down from weak decays of strange
+ // particles.
+ //
+ TParticle* p = Particle(index);
+ Int_t ist = p->GetStatusCode();
+
+ //
+ // Initial state particle
+ if (ist > 20) return kFALSE;
+
+ Int_t pdg = TMath::Abs(p->GetPdgCode());
+
+ if (!IsStable(pdg)) return kFALSE;
+
+ if (index < GetNprimary()) {
+//
+// Particle produced by generator
+ return kTRUE;
+ } else {
+//
+// Particle produced during transport
+//
+// Check if this is a heavy flavor decay product
+ Int_t imo = p->GetFirstMother();
+ TParticle* pm = Particle(imo);
+ Int_t mpdg = TMath::Abs(pm->GetPdgCode());
+ Int_t mfl = Int_t (mpdg / TMath::Power(10, Int_t(TMath::Log10(mpdg))));
+ //
+ // Light hadron
+ if (mfl < 4) return kFALSE;
+
+ //
+ // Heavy flavor hadron produced by generator
+ if (imo < GetNprimary()) {
+ return kTRUE;
+ }
+
+ // To be sure that heavy flavor has not been produced in a secondary interaction
+ // Loop back to the generated mother
+ while (imo >= GetNprimary()) {
+ imo = p->GetFirstMother();
+ pm = Particle(imo);
+ }
+ mpdg = TMath::Abs(pm->GetPdgCode());
+ mfl = Int_t (mpdg / TMath::Power(10, Int_t(TMath::Log10(mpdg))));
+
+ if (mfl < 4) {
+ return kFALSE;
+ } else {
+ return kTRUE;
+ }
+ } // produced by generator ?
+}
+
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff