//
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//
//
//
// Author: Maria Grazia Pia (Maria.Grazia.Pia@cern.ch)
//
// History:
// -----------
// 31 Jul 2001   MGP                 Created
//
// 15 Jul 2009   N.A.Karakatsanis    New calculation method added to support interpolation
//                                   from datasets with pre-calculated logarithmic data
//
// -------------------------------------------------------------------
// Class description:
// Base class for a strategy pattern to encapsulate algorithms for interpolation of a data set
// Further documentation available from http://www.ge.infn.it/geant4/lowE/index.html

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

#ifndef G4VDATASETALGORITHM_HH
#define G4VDATASETALGORITHM_HH 1

#include "globals.hh"
#include "G4DataVector.hh"

class G4VDataSetAlgorithm {
 
public:

  G4VDataSetAlgorithm() { }

  virtual ~G4VDataSetAlgorithm() { }
 
  virtual G4double Calculate(G4double point, G4int bin, 
			     const G4DataVector& energies, 
			     const G4DataVector& data) const = 0;

  virtual G4double Calculate(G4double point, G4int bin,
                     	     const G4DataVector& energies,
                             const G4DataVector& data, 
		             const G4DataVector& log_energies, 
		             const G4DataVector& log_data) const = 0;

  virtual G4VDataSetAlgorithm* Clone() const = 0;

private:
  
  // Hide copy constructor and assignment operator
  G4VDataSetAlgorithm(const G4VDataSetAlgorithm&);
  G4VDataSetAlgorithm& operator=(const G4VDataSetAlgorithm& right);

};
 
#endif
 










