source: trunk/source/processes/electromagnetic/lowenergy/src/G4ShellEMDataSet.cc @ 924

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// $Id: G4ShellEMDataSet.cc,v 1.15 2007/10/15 08:36:35 pia Exp $
// GEANT4 tag $Name: geant4-09-01-patch-02 $
//
// Author: Maria Grazia Pia (Maria.Grazia.Pia@cern.ch)
//
// History:
// -----------
// 1 Aug 2001   MGP        Created
// 09.10.01   V.Ivanchenko Add case z=0
//
// -------------------------------------------------------------------

#include "G4ShellEMDataSet.hh"
#include "G4EMDataSet.hh"
#include "G4VDataSetAlgorithm.hh"
#include <fstream>
#include <sstream>


G4ShellEMDataSet::G4ShellEMDataSet(G4int argZ, G4VDataSetAlgorithm* argAlgorithm, 
                                   G4double argUnitEnergies, 
                                   G4double argUnitData)
  :
  z(argZ),
  algorithm(argAlgorithm),
  unitEnergies(argUnitEnergies),
  unitData(argUnitData)
{
  if (algorithm == 0) 
    G4Exception("G4ShellEMDataSet::G4ShellEMDataSet - interpolation == 0");
}


G4ShellEMDataSet::~G4ShellEMDataSet()
{
  CleanUpComponents();
 
  if (algorithm)
    delete algorithm;
}


G4double G4ShellEMDataSet::FindValue(G4double argEnergy, G4int /* argComponentId */) const
{
  // Returns the sum over the shells corresponding to e
  G4double value = 0.;

  std::vector<G4VEMDataSet *>::const_iterator i(components.begin());
  std::vector<G4VEMDataSet *>::const_iterator end(components.end());

  while (i!=end)
    {
      value+=(*i)->FindValue(argEnergy);
      i++;
    }

  return value;
}


void G4ShellEMDataSet::PrintData(void) const
{
  const size_t n(NumberOfComponents());

  G4cout << "The data set has " << n << " components" << G4endl;
  G4cout << G4endl;
 
  size_t i(0);
 
  while (i<n)
    {
      G4cout << "--- Component " << i << " ---" << G4endl;
      GetComponent(i)->PrintData();
      i++;
    }
}


void G4ShellEMDataSet :: SetEnergiesData(G4DataVector* argEnergies, 
                                         G4DataVector* argData, 
                                         G4int argComponentId)
{
  G4VEMDataSet * component(components[argComponentId]);
 
  if (component)
    {
      component->SetEnergiesData(argEnergies, argData, 0);
      return;
    }

  std::ostringstream message;
  message << "G4ShellEMDataSet::SetEnergiesData - component " << argComponentId << " not found";
 
  G4Exception(message.str().c_str());
}


G4bool G4ShellEMDataSet::LoadData(const G4String& argFileName)
{
  CleanUpComponents();

  G4String fullFileName(FullFileName(argFileName));
  std::ifstream in(fullFileName);

  if (!in.is_open())
    {
      G4String message("G4ShellEMDataSet::LoadData - data file \"");
      message+=fullFileName;
      message+="\" not found";
      G4Exception(message);
    }

  G4DataVector* argEnergies(0);
  G4DataVector* argData(0);

  G4double a;
  G4int shellIndex(0);
  bool energyColumn(true);

  do
    {
      in >> a;
  
      if (a == -1)
        {
          if (energyColumn && argEnergies!=0)
            {
              AddComponent(new G4EMDataSet(shellIndex, argEnergies, argData, algorithm->Clone(), unitEnergies, unitData));
              argEnergies=0;
              argData=0;
            }
   
          energyColumn=(!energyColumn);
        }
      else if (a!=-2)
        {
          if (argEnergies==0)
            {
              argEnergies=new G4DataVector;
              argData=new G4DataVector;
            }
  
          if (energyColumn)
            argEnergies->push_back(a*unitEnergies);
          else
            argData->push_back(a*unitData);

          energyColumn=(!energyColumn);
        }
    }
  while (a != -2);

  return true;
}


G4bool G4ShellEMDataSet::SaveData(const G4String& argFileName) const
{
  G4String fullFileName(FullFileName(argFileName));
  std::ofstream out(fullFileName);

  if (!out.is_open())
    {
      G4String message("G4EMDataSet::SaveData - cannot open \"");
      message+=fullFileName;
      message+="\"";
      G4Exception(message);
    }
 
  const size_t n(NumberOfComponents());
  size_t k(0);
 
  while (k<n)
    {
      const G4VEMDataSet * component=GetComponent(k);
  
      if (component)
        {
          const G4DataVector & energies(component->GetEnergies(0));
          const G4DataVector & data(component->GetData(0));
 
          G4DataVector::const_iterator i(energies.begin());
          G4DataVector::const_iterator endI(energies.end());
          G4DataVector::const_iterator j(data.begin());
  
          while (i!=endI)
            {
              out.precision(10);
              out.width(15);
              out.setf(std::ofstream::left);
              out << ((*i)/unitEnergies) << ' ';

              out.precision(10);
              out.width(15);
              out.setf(std::ofstream::left);
              out << ((*j)/unitData) << std::endl;
              i++;
              j++;
            }
        }
  
      out.precision(10);
      out.width(15);
      out.setf(std::ofstream::left);
      out << -1.f << ' ';

      out.precision(10);
      out.width(15);
      out.setf(std::ofstream::left);
      out << -1.f << std::endl;
  
      k++;
    }
 
  out.precision(10);
  out.width(15);
  out.setf(std::ofstream::left);
  out << -2.f << ' ';

  out.precision(10);
  out.width(15);
  out.setf(std::ofstream::left);
  out << -2.f << std::endl;

  return true;
}





void G4ShellEMDataSet::CleanUpComponents(void)
{
  while (!components.empty())
    {
      if (components.back())
        delete components.back();

      components.pop_back();
    }
}





G4String G4ShellEMDataSet::FullFileName(const G4String & argFileName) const
{
  char* path = getenv("G4LEDATA");
  if (!path)
    G4Exception("G4ShellEMDataSet::FullFileName - G4LEDATA environment variable not set");
  
  std::ostringstream fullFileName;
 
  fullFileName << path << '/' << argFileName << z << ".dat";
                      
  return G4String(fullFileName.str().c_str());
}