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LHAPDF  6.2.1
LHAPDF::Interpolator Class Referenceabstract

The general interface for interpolating between grid points. More...

#include <Interpolator.h>

Inheritance diagram for LHAPDF::Interpolator:
LHAPDF::BicubicInterpolator LHAPDF::BilinearInterpolator LHAPDF::LogBicubicInterpolator LHAPDF::LogBilinearInterpolator

Public Member Functions

virtual ~Interpolator ()
 Destructor to allow inheritance.
 
Binding to a PDF object
void bind (const GridPDF *pdf)
 Bind to a GridPDF.
 
void unbind ()
 Unbind from GridPDF.
 
bool hasPDF ()
 Identify whether this Interpolator has an associated PDF.
 
const GridPDFpdf () const
 Get the associated GridPDF.
 

Private Attributes

const GridPDF_pdf
 

Interpolation methods

double interpolateXQ (int id, double x, double q) const
 Interpolate a single-point in (x,Q)
 
double interpolateXQ2 (int id, double x, double q2) const
 Interpolate a single-point in (x,Q2)
 
virtual double _interpolateXQ2 (const KnotArray1F &subgrid, double x, size_t ix, double q2, size_t iq2) const =0
 Interpolate a single-point in (x,Q2), given x/Q2 values and subgrid indices. More...
 

Detailed Description

The general interface for interpolating between grid points.

Member Function Documentation

◆ _interpolateXQ2()

virtual double LHAPDF::Interpolator::_interpolateXQ2 ( const KnotArray1F subgrid,
double  x,
size_t  ix,
double  q2,
size_t  iq2 
) const
protectedpure virtual

Interpolate a single-point in (x,Q2), given x/Q2 values and subgrid indices.

Todo:
Make an all-PID version of interpolateQ and Q2?

The key function to be overridden in derived classes: the subgrid and x/Q2 index lookup (and their caching) are done centrally in the Interpolator base class so do not need to be re-implemented in each flavour of interpolator.

Implemented in LHAPDF::BicubicInterpolator, LHAPDF::LogBicubicInterpolator, LHAPDF::BilinearInterpolator, and LHAPDF::LogBilinearInterpolator.

Member Data Documentation

◆ _pdf

const GridPDF* LHAPDF::Interpolator::_pdf
private
Todo:
Implement this NF version, with a cached KnotArrayNF?

The documentation for this class was generated from the following file: