LagrangeInterpolator.hpp

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#pragma once
 
#include "AstGlobal.h"
#include "Interpolator.hpp"
 
AST_NAMESPACE_BEGIN
 
AST_MATH_API void aLagrangeInterpolate(const double arrX[], const double tableY[], int n, int dimy, double x, double* y);
AST_MATH_API void aLagrangeInterpolate2(const double arrX[], const double tableY[], int n, int dimy, double x, double* y);
 
 
AST_MATH_API void aLagrangeInterpolate(const double arrX[], const double tableY[], int n, int dimy, double x, double* y, double* workArray);
 
AST_MATH_API void aLagrangeInterpolateFixedStep(const double arrX[], const double tableY[], int n, int dimy, double x, double* y, const double* denomArray);
 
 
AST_MATH_API void aLagrangeInterpolateDenomArray(int n, double step, double* denomArray);
 
#if 0  // @todo
 
class LagrangeInterpolator: public Interpolator
{
public:
    LagrangeInterpolator(int order, bool fixedStep, double step);
 
    ~LagrangeInterpolator() override;
 
    void evaluate(double x, double* out) const override;
 
    int getDimension() const override;
 
protected:
    double* workArray_;     
    double* denomArray_;    
    double* xtable_;        
    double* ytable_;        
    int dimtable_;          
    int dim_;               
    int order_;             
};
 
#endif
 
 
AST_NAMESPACE_END