TranslationOperatorSpline Class Reference

Translation operator which works in real space using interpolating splines. More...

#include <TranslationOperator.h>

Inheritance diagram for TranslationOperatorSpline:

Public Types
enum	SplineType { Constant , Linear }
	Types of interpolating spline available for translation. More...

Public Member Functions
	TranslationOperatorSpline (const GridInfo &gInfo, SplineType splineType)
void	taxpy (const vector3<> &t, double alpha, const ScalarField &x, ScalarField &y) const
Public Member Functions inherited from TranslationOperator
	TranslationOperator (const GridInfo &gInfo)

Public Attributes
enum TranslationOperatorSpline::SplineType	splineType
Public Attributes inherited from TranslationOperator
const GridInfo &	gInfo

Detailed Description

Translation operator which works in real space using interpolating splines.

Member Enumeration Documentation

SplineType

enum TranslationOperatorSpline::SplineType

Types of interpolating spline available for translation.

Enumerator
Constant	0th order spline i.e. nearest neighbour interpolation
Linear	1st order spline i.e. linear interpolation

Member Function Documentation

taxpy()

void TranslationOperatorSpline::taxpy ( const vector3<> &  t, double  alpha, const ScalarField &  x, ScalarField &  y  ) const

virtual

Compute \( y += alpha T_t(x) \) , where \( T_t \) is the translation operator \( T_t(x(r)) = x(r+t) \) modulo the lattice vectors T must conserve integral(x) and satisfy \( T^{\dagger}_t = T_{-t} \) exactly for gradient correctness Note that \( T^{-1}_t = T_{-t} \) may only be approximately true for some implementations.

Implements TranslationOperator.

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

• fluid/TranslationOperator.h