sgpp::base::OperationEvalGradientBsplineNaive Class Reference

Operation for evaluating B-spline linear combinations on Noboundary grids and their gradients. More...

#include <OperationEvalGradientBsplineNaive.hpp>

Inheritance diagram for sgpp::base::OperationEvalGradientBsplineNaive:

Public Member Functions
double	evalGradient (const DataVector &alpha, const DataVector &point, DataVector &gradient) override
void	evalGradient (const DataMatrix &alpha, const DataVector &point, DataVector &value, DataMatrix &gradient) override
	OperationEvalGradientBsplineNaive (GridStorage &storage, size_t degree)
	Constructor. More...
	~OperationEvalGradientBsplineNaive () override
	Destructor. More...
Public Member Functions inherited from sgpp::base::OperationEvalGradient
	OperationEvalGradient ()
	Constructor. More...
virtual	~OperationEvalGradient ()
	Destructor. More...

Protected Attributes
SBsplineBase	base
	1D B-spline basis More...
DataVector	innerDerivative
	inner derivative (temporary vector) More...
DataVector	pointInUnitCube
	untransformed evaluation point (temporary vector) More...
GridStorage &	storage
	storage of the sparse grid More...

Additional Inherited Members
Public Attributes inherited from sgpp::base::OperationEvalGradient
DataVector	pointInUnitCube
	untransformed evaluation point (temporary vector) More...

Detailed Description

Operation for evaluating B-spline linear combinations on Noboundary grids and their gradients.

Constructor & Destructor Documentation

OperationEvalGradientBsplineNaive()

sgpp::base::OperationEvalGradientBsplineNaive::OperationEvalGradientBsplineNaive ( GridStorage &  storage, size_t  degree  )

inline

Constructor.

Parameters

storage	storage of the sparse grid
degree	B-spline degree

~OperationEvalGradientBsplineNaive()

sgpp::base::OperationEvalGradientBsplineNaive::~OperationEvalGradientBsplineNaive ( )

inlineoverride

Destructor.

References alpha, evalGradient(), and chess::point.

Member Function Documentation

evalGradient() [1/2]

double sgpp::base::OperationEvalGradientBsplineNaive::evalGradient ( const DataVector &  alpha, const DataVector &  point, DataVector &  gradient  )

overridevirtual

Parameters

	alpha	coefficient vector
	point	evaluation point
[out]	gradient	gradient of linear combination

Returns

value of the linear combination

Implements sgpp::base::OperationEvalGradient.

References sgpp::base::DataVector::add(), base, sgpp::base::BsplineBasis< LT, IT >::eval(), sgpp::base::BsplineBasis< LT, IT >::evalDx(), sgpp::base::HashGridStorage::getBoundingBox(), sgpp::base::HashGridStorage::getDimension(), sgpp::base::HashGridPoint::getIndex(), sgpp::base::BoundingBox::getIntervalWidth(), sgpp::base::HashGridPoint::getLevel(), sgpp::base::HashGridStorage::getSize(), python.statsfileInfo::i, innerDerivative, chess::point, pointInUnitCube, sgpp::base::DataVector::setAll(), storage, and sgpp::base::BoundingBox::transformPointToUnitCube().

Referenced by ~OperationEvalGradientBsplineNaive().

evalGradient() [2/2]

void sgpp::base::OperationEvalGradientBsplineNaive::evalGradient ( const DataMatrix &  alpha, const DataVector &  point, DataVector &  value, DataMatrix &  gradient  )

overridevirtual

Parameters

	alpha	coefficient matrix (each column is a coefficient vector)
	point	evaluation point
[out]	value	values of the linear combination
[out]	gradient	Jacobian of the linear combination (each row is a gradient vector)

Reimplemented from sgpp::base::OperationEvalGradient.

References alpha, base, sgpp::base::BsplineBasis< LT, IT >::eval(), sgpp::base::BsplineBasis< LT, IT >::evalDx(), sgpp::base::HashGridStorage::getBoundingBox(), sgpp::base::HashGridStorage::getDimension(), sgpp::base::HashGridPoint::getIndex(), sgpp::base::BoundingBox::getIntervalWidth(), sgpp::base::HashGridPoint::getLevel(), sgpp::base::DataMatrix::getNcols(), sgpp::base::HashGridStorage::getSize(), python.statsfileInfo::i, innerDerivative, python.utils.statsfile2gnuplot::j, m, chess::point, pointInUnitCube, sgpp::base::DataMatrix::resize(), sgpp::base::DataVector::setAll(), sgpp::base::DataMatrix::setAll(), storage, and sgpp::base::BoundingBox::transformPointToUnitCube().

Member Data Documentation

base

SBsplineBase sgpp::base::OperationEvalGradientBsplineNaive::base

protected

1D B-spline basis

Referenced by evalGradient().

innerDerivative

DataVector sgpp::base::OperationEvalGradientBsplineNaive::innerDerivative

protected

inner derivative (temporary vector)

Referenced by evalGradient().

pointInUnitCube

DataVector sgpp::base::OperationEvalGradientBsplineNaive::pointInUnitCube

protected

untransformed evaluation point (temporary vector)

Referenced by evalGradient().

storage

GridStorage& sgpp::base::OperationEvalGradientBsplineNaive::storage

protected

storage of the sparse grid

Referenced by evalGradient().

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

• base/src/sgpp/base/operation/hash/OperationEvalGradientBsplineNaive.hpp
• base/src/sgpp/base/operation/hash/OperationEvalGradientBsplineNaive.cpp