G4AdjointInterpolator.hh

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// $Id: G4AdjointInterpolator.hh 69844 2013-05-16 09:19:33Z gcosmo $
//
//      Module:     G4AdjointInterpolator
//  Author:         L. Desorgher
//  Organisation:   SpaceIT GmbH
//  Contract:   ESA contract 21435/08/NL/AT
//  Customer:       ESA/ESTEC
//
// CHANGE HISTORY
// --------------
//      ChangeHistory: 
//      1st April 2007 creation by L. Desorgher         
//
//-------------------------------------------------------------
//  Documentation:
//      Used by  G4AdjointCSManager for interpolation purpose. 
//
#ifndef G4AdjointInterpolator_h
#define G4AdjointInterpolator_h 1

#include"globals.hh"
#include<vector>

//
class G4AdjointInterpolator
{
    
  public:
    static G4AdjointInterpolator* GetAdjointInterpolator();
    static G4AdjointInterpolator* GetInstance();
        
  public:
 
        // Constructors and Destructor
 
    
    ~G4AdjointInterpolator();

        // Methods
    
    //Caution everywher it is considere thta x_vec increase monotically
    
    G4double LinearInterpolation(G4double& x,G4double& x1,G4double& x2,G4double& y1,G4double& y2); 
    G4double LogarithmicInterpolation(G4double& x,G4double& x1,G4double& x2,G4double& y1,G4double& y2);
    G4double ExponentialInterpolation(G4double& x,G4double& x1,G4double& x2,G4double& y1,G4double& y2);
    G4double Interpolation(G4double& x,G4double& x1,G4double& x2,G4double& y1,G4double &y2,G4String InterPolMethod="Log");
    
    
    size_t FindPosition(G4double& x,std::vector<G4double>& x_vec,size_t ind_min=0, size_t ind_max=0);
    
    size_t FindPositionForLogVector(G4double& x,std::vector<G4double>& x_vec);
    
    G4double Interpolate(G4double& x,std::vector<G4double>& x_vec,std::vector<G4double>& y_vec,G4String InterPolMethod="Log"); //xvec should monotically increase           
    
    G4double InterpolateWithIndexVector(G4double& x,std::vector<G4double>& x_vec,std::vector<G4double>& y_vec,
                        std::vector<size_t>& index_vec, G4double x0,G4double dx); //xvec should monotically increase            
    
    
    G4double InterpolateForLogVector(G4double& x,std::vector<G4double>& x_vec,std::vector<G4double>& y_vec);
   
   private:
    static  G4AdjointInterpolator* theInstance;
   
   private:
    G4AdjointInterpolator();  
        
};
#endif