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// $Id: PamVMCStack.cxx,v 1.0 2007/06/03 |
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// |
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// Class PamVMCStack |
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|
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#include <TParticle.h> |
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#include <TClonesArray.h> |
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#include <TError.h> |
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#include <Riostream.h> |
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|
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#include "PamVMCStack.h" |
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|
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ClassImp(PamVMCStack) |
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|
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PamVMCStack::PamVMCStack(Int_t size) |
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: fParticles(0), |
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fCurrentTrack(-1), |
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fNPrimary(0) |
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{ |
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fParticles = new TClonesArray("TParticle", size); |
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} |
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|
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PamVMCStack::PamVMCStack() |
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: fParticles(0), |
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fCurrentTrack(-1), |
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fNPrimary(0) |
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{ |
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|
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|
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} |
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|
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PamVMCStack::~PamVMCStack() |
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{ |
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|
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if (fParticles) fParticles->Delete(); |
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delete fParticles; |
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} |
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|
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|
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void PamVMCStack::PushTrack(Int_t toBeDone, Int_t parent, Int_t pdg, |
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Double_t px, Double_t py, Double_t pz, Double_t e, |
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Double_t vx, Double_t vy, Double_t vz, Double_t tof, |
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Double_t polx, Double_t poly, Double_t polz, |
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TMCProcess mech, Int_t& /*ntr*/, Double_t weight, |
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Int_t is) |
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{ |
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// Creates a new particle with specified properties, |
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// adds it to the particles array (fParticles) and if not done to the |
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// stack (fStack). |
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// Use TParticle::fMother[1] to store Track ID. |
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|
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const Int_t kFirstDaughter=-1; |
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const Int_t kLastDaughter=-1; |
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|
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TClonesArray& particlesRef = *fParticles; |
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Int_t trackId = GetNtrack(); |
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TParticle* particle |
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= new(particlesRef[trackId]) |
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TParticle(pdg, is, parent, trackId, kFirstDaughter, kLastDaughter, |
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px, py, pz, e, vx, vy, vz, tof); |
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|
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particle->SetPolarisation(polx, poly, polz); |
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particle->SetWeight(weight); |
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particle->SetUniqueID(mech); |
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|
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if (parent<0) fNPrimary++; |
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|
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if (toBeDone) fStack.push(particle); |
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} |
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|
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TParticle* PamVMCStack::PopNextTrack(Int_t& itrack) |
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{ |
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// Gets next particle for tracking from the stack. |
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|
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itrack = -1; |
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if (fStack.empty()) return 0; |
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|
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TParticle* particle = fStack.top(); |
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fStack.pop(); |
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|
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if (!particle) return 0; |
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|
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fCurrentTrack = particle->GetSecondMother(); |
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itrack = fCurrentTrack; |
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|
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return particle; |
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} |
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|
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TParticle* PamVMCStack::PopPrimaryForTracking(Int_t i) |
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{ |
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// Returns i-th particle in fParticles. |
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|
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|
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if (i < 0 || i >= fNPrimary) |
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Fatal("GetPrimaryForTracking", "Index out of range"); |
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|
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return (TParticle*)fParticles->At(i); |
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} |
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|
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void PamVMCStack::Print(Option_t* /*option*/) const |
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{ |
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// Prints info for all particles. |
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|
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cout << "PamVMCStack Info " << endl; |
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cout << "Total number of particles: " << GetNtrack() << endl; |
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cout << "Number of primary particles: " << GetNprimary() << endl; |
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|
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for (Int_t i=0; i<GetNtrack(); i++){ |
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GetParticle(i)->Print(); |
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|
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} |
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} |
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|
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void PamVMCStack::Reset() |
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{ |
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// Deletes contained particles, resets particles array and stack. |
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|
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fCurrentTrack = -1; |
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fNPrimary = 0; |
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fParticles->Clear(); |
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} |
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|
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void PamVMCStack::SetCurrentTrack(Int_t track) |
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{ |
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// Sets the current track to a given value. |
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|
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fCurrentTrack = track; |
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} |
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|
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Int_t PamVMCStack::GetNtrack() const |
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{ |
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// Returns the number of all tracks. |
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|
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return fParticles->GetEntriesFast(); |
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} |
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|
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Int_t PamVMCStack::GetNprimary() const |
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{ |
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// Returns the number of primary tracks. |
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|
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return fNPrimary; |
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} |
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|
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TParticle* PamVMCStack::GetCurrentTrack() const |
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{ |
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// Returns the current track parent ID. |
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|
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TParticle* current = GetParticle(fCurrentTrack); |
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|
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if (!current) |
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Warning("GetCurrentTrack", "Current track not found in the stack"); |
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|
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return current; |
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} |
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|
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Int_t PamVMCStack::GetCurrentTrackNumber() const |
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{ |
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// Returns the current track ID. |
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|
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return fCurrentTrack; |
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} |
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|
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Int_t PamVMCStack::GetCurrentParentTrackNumber() const |
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{ |
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// Returns the current track parent ID. |
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|
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TParticle* current = GetCurrentTrack(); |
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|
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if (current) |
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return current->GetFirstMother(); |
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else |
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return -1; |
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} |
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|
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TParticle* PamVMCStack::GetParticle(Int_t id) const |
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{ |
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// Returns id-th particle in fParticles. |
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|
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if (id < 0 || id >= fParticles->GetEntriesFast()) |
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Fatal("GetParticle", "Index out of range"); |
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return (TParticle*)fParticles->At(id); |
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} |
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