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//
// $Id: G4SemiLogInterpolation.hh,v 1.5 2009/09/25 07:41:34 sincerti Exp $
// GEANT4 tag $Name: geant4-09-04-beta-01 $
//
// Author: Maria Grazia Pia (Maria.Grazia.Pia@cern.ch)
//
// History:
// -----------
// 31 Jul 2001   MGP                 Created
//
// 15 Jul 2009   N.A.Karakatsanis    New methods added for loading logarithmic data
//                                   to enhance computing performance of interpolation
//
// -------------------------------------------------------------------
// Class description:
// Log-Log interpolation of a data set
// Part of a strategy pattern to encapsulate algorithms for interpolation of data sets
// Further documentation available from http://www.ge.infn.it/geant4/lowE/index.html

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

#ifndef G4SEMILOGINTERPOLATION_HH
#define G4SEMILOGINTERPOLATION_HH 1

#include "globals.hh"
#include "G4VDataSetAlgorithm.hh"
#include "G4DataVector.hh"

class G4SemiLogInterpolation : public G4VDataSetAlgorithm {
 
public:

  G4SemiLogInterpolation();

  ~G4SemiLogInterpolation();
 
  G4double Calculate(G4double point, G4int bin, 
		     const G4DataVector& energies, 
		     const G4DataVector& data) const;

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

  virtual G4VDataSetAlgorithm* Clone() const;

private:

  
  // Hide copy constructor and assignment operator

};
 
#endif