UEvent.cxx

 
#include <iostream>
using namespace std;
 
#include "TClonesArray.h"
#include "TObject.h"
#include "TString.h"
 
#include "UEvent.h"
#include "UParticle.h"
 
 
//____________________________________________________________________
//
// UEvent
//
// Class for event description. Contains the particle array
//
 
 
//--------------------------------------------------------------------
UEvent::UEvent() {
  // Default constructor
  fEventNr = 0;
  fB = fPhi  = 0.;
  fNes       = 1;
  fStepNr    = 0;
  fStepT     = 0.;
  fNpa       = 0;
  fComment   = "";
  fParticles = new TClonesArray("UParticle", 100);
}
//--------------------------------------------------------------------
 
 
//--------------------------------------------------------------------
UEvent::UEvent(const UEvent& right) {
  // Copy constructor
  fEventNr   = right.fEventNr;
  fB         = right.fB;
  fPhi       = right.fPhi;
  fNes       = right.fNes;
  fStepNr    = right.fStepNr;
  fStepT     = right.fStepT;
  fComment   = right.fComment;
  fNpa       = right.fNpa;
  fParticles = new TClonesArray("UParticle", 100);
  UParticle* p;
  for (Int_t i = 0; i < fNpa; i++) {
    p = (UParticle*) right.fParticles->At(i);
    new ((*fParticles)[i]) UParticle(*p);
  }
}
//--------------------------------------------------------------------
 
//--------------------------------------------------------------------
 
UEvent& UEvent::operator=(const UEvent& right) {
  if (this != &right) {
    fEventNr = right.fEventNr;
    fB       = right.fB;
    fPhi     = right.fPhi;
    fNes     = right.fNes;
    fStepNr  = right.fStepNr;
    fStepT   = right.fStepT;
    fNpa     = right.fNpa;
    fComment = right.fComment;
    fParticles->Clear();
    UParticle* p;
    for (Int_t i = 0; i < fNpa; i++) {
      p = (UParticle*) right.fParticles->At(i);
      new ((*fParticles)[i]) UParticle(*p);
    }
  }
  return *this;
}
 
//--------------------------------------------------------------------
 
//--------------------------------------------------------------------
UEvent::~UEvent() {
  // Destructor
  Clear();
  delete fParticles;
}
//--------------------------------------------------------------------
 
 
//--------------------------------------------------------------------
void UEvent::Print(Option_t* option) {
  // Print data members to the standard output
  cout << "---------------------------------------------" << endl
       << "-I-                 Event                 -I-" << endl
       << "Event number               : " << fEventNr << endl
       << "Impact parameter (fm)      : " << fB << endl
       << "Reaction plane angle (rad) : " << fPhi << endl
       << "Number of time steps       : " << fNes << endl
       << "Time step number           : " << fStepNr << endl
       << "Time of the time step (fm) : " << fStepT << endl
       << "Number of particles        : " << fNpa << endl
       << "Comment                    :\n"
       << fComment << endl;
  TString opt = option;
  if (opt.Contains("all")) {
    UParticle* particle;
    for (Int_t iPa = 0; iPa < fNpa; iPa++) {
      particle = (UParticle*) fParticles->At(iPa);
      particle->Print(option);
    }
  }
  cout << "---------------------------------------------" << endl;
}
//--------------------------------------------------------------------
 
 
//--------------------------------------------------------------------
UParticle* UEvent::GetParticle(Int_t index) const {
  // Get pointer to the particle.
  // index - index of the particle
  if (index < 0) { return NULL; }
  if (index >= fNpa) { return NULL; }
  return ((UParticle*) fParticles->At(index));
}
//--------------------------------------------------------------------
 
 
//--------------------------------------------------------------------
void UEvent::AddParticle(Int_t index,
                         Int_t pdg,
                         Int_t status,
                         Int_t parent,
                         Int_t parentDecay,
                         Int_t mate,
                         Int_t decay,
                         Int_t child[2],
                         Double_t px,
                         Double_t py,
                         Double_t pz,
                         Double_t e,
                         Double_t x,
                         Double_t y,
                         Double_t z,
                         Double_t t,
                         Double_t weight) {
  // Add particle to the array
  new ((*fParticles)[fNpa])
    UParticle(index, pdg, status, parent, parentDecay, mate, decay, child, px, py, pz, e, x, y, z, t, weight);
  fNpa += 1;
}
//--------------------------------------------------------------------
 
 
//--------------------------------------------------------------------
void UEvent::AddParticle(Int_t index,
                         Int_t pdg,
                         Int_t status,
                         Int_t parent,
                         Int_t parentDecay,
                         Int_t mate,
                         Int_t decay,
                         Int_t child[2],
                         TLorentzVector mom,
                         TLorentzVector pos,
                         Double_t weight) {
  // Add particle to the array
  new ((*fParticles)[fNpa]) UParticle(index, pdg, status, parent, parentDecay, mate, decay, child, mom, pos, weight);
  fNpa += 1;
}
//--------------------------------------------------------------------
 
 
//--------------------------------------------------------------------
void UEvent::AddParticle(const UParticle& particle) {
  // Add particle to the array
  new ((*fParticles)[fNpa]) UParticle(particle);
  fNpa += 1;
}
//--------------------------------------------------------------------
 
 
//--------------------------------------------------------------------
void UEvent::SetParameters(Int_t eventNr,
                           Double_t b,
                           Double_t phi,
                           Int_t nes,
                           Int_t stepNr,
                           Double_t stepT,
                           const char* comment) {
  // Set the event parameters
  fEventNr = eventNr;
  fB       = b;
  fPhi     = phi;
  fNes     = nes;
  fStepNr  = stepNr;
  fStepT   = stepT;
  fComment = comment;
}
//--------------------------------------------------------------------
 
 
//--------------------------------------------------------------------
void UEvent::Clear() {
  // Remove the particles from the array and reset counter
  fParticles->Clear();
  fNpa = 0;
}
//--------------------------------------------------------------------
 
 
//--------------------------------------------------------------------
void UEvent::RemoveAt(Int_t i) {
  // Remove one particle from the array.
  // i - index of the particle.
  // Array is automaticaly compressed afterwards, mind the indexing
  fParticles->RemoveAt(i);
  fParticles->Compress();
  fNpa -= 1;
}
//--------------------------------------------------------------------