G4CrossSectionDataSet.hh

Go to the documentation of this file.

//
// ********************************************************************
// * License and Disclaimer                                           *
// *                                                                  *
// * The  Geant4 software  is  copyright of the Copyright Holders  of *
// * the Geant4 Collaboration.  It is provided  under  the terms  and *
// * conditions of the Geant4 Software License,  included in the file *
// * LICENSE and available at  http://cern.ch/geant4/license .  These *
// * include a list of copyright holders.                             *
// *                                                                  *
// * Neither the authors of this software system, nor their employing *
// * institutes,nor the agencies providing financial support for this *
// * work  make  any representation or  warranty, express or implied, *
// * regarding  this  software system or assume any liability for its *
// * use.  Please see the license in the file  LICENSE  and URL above *
// * for the full disclaimer and the limitation of liability.         *
// *                                                                  *
// * This  code  implementation is the result of  the  scientific and *
// * technical work of the GEANT4 collaboration.                      *
// * By using,  copying,  modifying or  distributing the software (or *
// * any work based  on the software)  you  agree  to acknowledge its *
// * use  in  resulting  scientific  publications,  and indicate your *
// * acceptance of all terms of the Geant4 Software license.          *
// ********************************************************************
//
//
// $Id$
//
// Author: Riccardo Capra <capra@ge.infn.it>
//
// History:
// -----------
// 30 Jun 2005  RC                  Created
// 14 Oct 2007  MGP                 Removed inheritance from concrete class G4ShellEMDataSet
// 15 Jul 2009  N.A.Karakatsanis    New methods added for loading logarithmic data
//                                  to enhance computing performance of interpolation
//
// -------------------------------------------------------------------

// Class description:
// Low Energy Electromagnetic Physics
// Data set for an electromagnetic physics process
// A strategy pattern is used to encapsulate algorithms for data interpolation
// Further documentation available from http://www.ge.infn.it/geant4/lowE

// -------------------------------------------------------------------

#ifndef  G4CrossSectionDataSet_HH
#define  G4CrossSectionDataSet_HH 1

#include <CLHEP/Units/SystemOfUnits.h>

#include "G4ShellEMDataSet.hh"

class G4CrossSectionDataSet : public G4VEMDataSet
{ 

public:
  G4CrossSectionDataSet(G4VDataSetAlgorithm* algo, 
               G4double xUnit=CLHEP::MeV, 
               G4double dataUnit=CLHEP::barn);

  virtual ~G4CrossSectionDataSet();

  virtual G4double FindValue(G4double e, G4int componentId=0) const;
  
  virtual void PrintData(void) const;

  virtual const G4VEMDataSet*  GetComponent(G4int componentId) const 
  { return components[componentId]; }

  virtual void AddComponent(G4VEMDataSet* dataSet) 
  { components.push_back(dataSet); }

  virtual size_t NumberOfComponents(void) const 
  { return components.size(); }

  virtual const G4DataVector& GetEnergies(G4int componentId) const 
  { return GetComponent(componentId)->GetEnergies(0); }

  virtual const G4DataVector& GetData(G4int componentId) const 
  { return GetComponent(componentId)->GetData(0); }

  virtual const G4DataVector& GetLogEnergies(G4int componentId) const 
  { return GetComponent(componentId)->GetLogEnergies(0); }

  virtual const G4DataVector& GetLogData(G4int componentId) const 
  { return GetComponent(componentId)->GetLogData(0); }

  virtual void SetEnergiesData(G4DataVector* x, G4DataVector* values, G4int componentId);

  virtual void SetLogEnergiesData(G4DataVector* x,
                                  G4DataVector* values,
                                  G4DataVector* log_x, 
                                  G4DataVector* log_values,
                                  G4int componentId);

  virtual G4bool LoadData(const G4String & argFileName);
  virtual G4bool LoadNonLogData(const G4String & argFileName);

  virtual G4bool SaveData(const G4String & argFileName) const;
 
  virtual G4double RandomSelect(G4int /*componentId */) const { return -1.; };


  //   void CleanUpComponents();
   
private:

  G4String FullFileName(const G4String & argFileName) const;

  // Hide copy constructor and assignment operator 
  G4CrossSectionDataSet();
  G4CrossSectionDataSet(const G4CrossSectionDataSet & copy);
  G4CrossSectionDataSet& operator=(const G4CrossSectionDataSet & right);

  std::vector<G4VEMDataSet*> components;          // Owned pointers

  G4int z;

  G4VDataSetAlgorithm* algorithm;           // Owned pointer 
  
  G4double unitEnergies;
  G4double unitData; 

  G4double GetUnitEnergies() const { return unitEnergies; }
  G4double GetUnitData() const { return unitData; }
  const G4VDataSetAlgorithm* GetAlgorithm() const { return algorithm; }
   
  void CleanUpComponents(void);


};
#endif /* G4CrossSectionDataSet_HH */