G4DNAMolecularReaction.cc

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// $Id: G4DNAMolecularReaction.cc 91584 2015-07-27 13:01:48Z gcosmo $
//
// Author: Mathieu Karamitros (kara@cenbg.in2p3.fr)
//
// WARNING : This class is released as a prototype.
// It might strongly evolve or even disapear in the next releases.
//
// History:
// -----------
// 10 Oct 2011 M.Karamitros created
//
// -------------------------------------------------------------------

#include "G4DNAMolecularReaction.hh"
#include "G4DNAMolecularReactionTable.hh"
#include "G4VDNAReactionModel.hh"
#include "G4MoleculeFinder.hh"
#include "G4UnitsTable.hh"
#include "G4MolecularConfiguration.hh"

using namespace std;

G4DNAMolecularReaction::G4DNAMolecularReaction() :
    G4VITReactionProcess(),
    fMolReactionTable(
        reference_cast<const G4DNAMolecularReactionTable*>(fpReactionTable))
{
  //ctor
  fVerbose = 0;
  fReactionModel = 0;
  fReactionRadius = -1;
  fDistance = -1;
}

G4DNAMolecularReaction::~G4DNAMolecularReaction()
{
  //dtor
  if (fpChanges) delete fpChanges;
}

G4DNAMolecularReaction::G4DNAMolecularReaction(const G4DNAMolecularReaction& other) :
    G4VITReactionProcess(other),
    fMolReactionTable(
        reference_cast<const G4DNAMolecularReactionTable*>(fpReactionTable))
{
  //copy ctor
  fVerbose = other.fVerbose;
  fMolReactionTable = other.fMolReactionTable;
  fReactionModel = 0;
  fReactionRadius = -1;
  fDistance = -1;
}

G4DNAMolecularReaction& G4DNAMolecularReaction::operator=(const G4DNAMolecularReaction& rhs)
{
  if (this == &rhs) return *this; // handle self assignment

  fVerbose = rhs.fVerbose;
  fMolReactionTable = rhs.fMolReactionTable;
  fReactionRadius = -1;
  fDistance = -1;

  //assignment operator
  return *this;
}

G4bool G4DNAMolecularReaction::TestReactibility(const G4Track& trackA,
                                                const G4Track& trackB,
                                                const double currentStepTime,
                                                const double /*previousStepTime*/,
                                                bool userStepTimeLimit) /*const*/
{
  G4MolecularConfiguration* moleculeA =
      GetMolecule(trackA)->GetMolecularConfiguration();
  G4MolecularConfiguration* moleculeB =
      GetMolecule(trackB)->GetMolecularConfiguration();

  if (!fReactionModel)
  {
    G4ExceptionDescription exceptionDescription(
        "You have to give a reaction model to the molecular reaction process");
    G4Exception("G4DNAMolecularReaction::TestReactibility",
                "MolecularReaction001", FatalErrorInArgument,
                exceptionDescription);
    return false; // makes coverity happy
  }
  if (fMolReactionTable == 0)
  {
    G4ExceptionDescription exceptionDescription(
        "You have to give a reaction table to the molecular reaction process");
    G4Exception("G4DNAMolecularReaction::TestReactibility",
                "MolecularReaction002", FatalErrorInArgument,
                exceptionDescription);
    return false; // makes coverity happy
  }

  // Retrieve reaction range
  fReactionRadius = -1; // reaction Range
  fReactionRadius = fReactionModel->GetReactionRadius(moleculeA, moleculeB);

  fDistance = -1; // separation distance

  if (currentStepTime == 0.)
  {
    userStepTimeLimit = false;
  }

  G4bool output = fReactionModel->FindReaction(trackA, trackB, fReactionRadius,
                                               fDistance, userStepTimeLimit);

#ifdef G4VERBOSE
  //    DEBUG
  if (fVerbose > 1)
  {
    G4cout << "\033[1;39;36m" << "G4MolecularReaction " << G4endl;
    G4cout << "FindReaction returned : " << G4BestUnit(output,"Length") << G4endl;
    G4cout << " reaction radius : " << G4BestUnit(fReactionRadius,"Length")
    << " real distance : " << G4BestUnit((trackA.GetPosition() - trackB.GetPosition()).mag(), "Length")
    << " calculated distance by model (= -1 if real distance > reaction radius and the user limitation step is not reached) : "
    << G4BestUnit(fDistance,"Length")
    << G4endl;

    G4cout << "TrackID A : " << trackA.GetTrackID()
    << ", TrackID B : " << trackB.GetTrackID()
    << " | MolA " << moleculeA->GetName()
    << ", MolB " << moleculeB->GetName()
    <<"\033[0m\n"
    << G4endl;
    G4cout << "--------------------------------------------" << G4endl;
  }
#endif
  return output;
}

G4ITReactionChange* G4DNAMolecularReaction::MakeReaction(const G4Track& trackA,
                                                         const G4Track& trackB)
{
  fpChanges = new G4ITReactionChange();
  fpChanges->Initialize(trackA, trackB);

  G4MolecularConfiguration* moleculeA =
      GetMolecule(trackA)->GetMolecularConfiguration();
  G4MolecularConfiguration* moleculeB =
      GetMolecule(trackB)->GetMolecularConfiguration();

#ifdef G4VERBOSE
  // DEBUG
  if (fVerbose)
  {
    G4cout << "G4DNAMolecularReaction::MakeReaction" << G4endl;
    G4cout<<"TrackA n°" << trackA.GetTrackID()
    <<"\t | Track B n°" << trackB.GetTrackID() << G4endl;

    G4cout<<"Track A : Position : " << G4BestUnit(trackA.GetPosition(),"Length")
    <<"\t Global Time : " << G4BestUnit(trackA.GetGlobalTime(), "Time")<< G4endl;

    G4cout<<"Track B : Position : " << G4BestUnit(trackB.GetPosition() ,"Length")
    <<"\t Global Time : " << G4BestUnit(trackB.GetGlobalTime(), "Time")<< G4endl;

    G4cout<<"Reaction range : " << G4BestUnit(fReactionRadius,"Length")
    << " \t Separation distance : " << G4BestUnit(fDistance,"Length")<< G4endl;
    G4cout << "--------------------------------------------" << G4endl;
  }
#endif

  const G4DNAMolecularReactionData* reactionData = fMolReactionTable
      ->GetReactionData(moleculeA, moleculeB);

  G4int nbProducts = reactionData->GetNbProducts();

  if (nbProducts)
  {
    G4double D1 = moleculeA->GetDiffusionCoefficient();
    G4double D2 = moleculeB->GetDiffusionCoefficient();
    G4double sqrD1 = sqrt(D1);
    G4double sqrD2 = sqrt(D2);
    G4double numerator = sqrD1 + sqrD2;
    G4ThreeVector reactionSite = sqrD1 / numerator * trackA.GetPosition()
        + sqrD2 / numerator * trackB.GetPosition();

    for (G4int j = 0; j < nbProducts; j++)
    {
      G4Molecule* product = new G4Molecule(reactionData->GetProduct(j));
      G4Track* productTrack = product->BuildTrack(trackA.GetGlobalTime(),
                                                  reactionSite);

//            G4cout << ">> G4DNAMolecularReaction::MakeReaction " << G4endl
//                << "\t track A ("<< trackA.GetTrackID() <<"): " << trackA.GetGlobalTime() << G4endl
//                << "\t track B ("<< trackB.GetTrackID() <<"): " << trackB.GetGlobalTime() << G4endl;

      productTrack->SetTrackStatus(fAlive);

      fpChanges->AddSecondary(productTrack);
      G4MoleculeFinder::Instance()->Push(productTrack);
    }
  }

  fpChanges->KillParents(true);

  return fpChanges;
}