sgpp::base::Stretching Class Reference

Stretching can be done in different ways: More...

#include <Stretching.hpp>

Inheritance diagram for sgpp::base::Stretching:

Public Member Functions
void	calculateNeighborLookup (level_t maxlevel) const
void	getAdjacentPositions (level_t level, index_t index, size_t d, double &posc, double &posl, double &posr) const
double	getCoordinate (level_t level, index_t index, size_t d) const
std::vector< double > *	getDiscreteVector (bool bSort) const
std::vector< level_t >	getDiscreteVectorLevel () const
const Stretching1D &	getStretching1D (size_t d) const
std::string	getStretchingMode () const
void	printLookupTable () const
std::string	serialize (int version=SERIALIZATION_VERSION) const override
	Serialize the Stretching into a string. More...
void	serialize (std::ostream &ostream, int version=SERIALIZATION_VERSION) const override
	Serialize the Stretching into a stream. More...
	Stretching (size_t dimension)
	Constructor for Stretching. More...
	Stretching (const std::vector< BoundingBox1D > &boundaries, const std::vector< Stretching1D > &stretching1Ds)
	Constructor for Stretching. More...
	Stretching (size_t dimension, std::vector< double > *coordinates)
	Constructor for Stretching. More...
void	unserialize (const std::string &istr, const std::string &mode, int version)
	Unserialize from a string. More...
void	unserialize (std::istream &istr, const std::string &mode, int version)
	Unserialize from a stream. More...
	~Stretching () override
	Destructor. More...
Public Member Functions inherited from sgpp::base::BoundingBox
	BoundingBox (size_t dimension)
	Constructor for BoundingBox. More...
	BoundingBox (const std::vector< BoundingBox1D > &boundingBox1Ds)
	Constructor for BoundingBox. More...
const BoundingBox1D &	getBoundary (size_t d) const
	Returns the left and right boundary for a specific dimension. More...
size_t	getDimension () const
	Returns the number of dimensions of this bounding box. More...
double	getIntervalOffset (size_t d) const
	Returns the offset in positive x-direction of the interval in one dimension. More...
double	getIntervalWidth (size_t d) const
	Calculates the width of the interval in one dimension. More...
bool	hasDirichletBoundaryLeft (size_t d) const
	Determines if the interval in the specified dimension has left Dirichlet boundary conditions. More...
bool	hasDirichletBoundaryRight (size_t d) const
	Determines if the interval in the specified dimension has right Dirichlet boundary conditions. More...
bool	isContainingPoint (DataVector &point) const
	Check whether the BoundingBox contains a given point. More...
bool	isContainingPoint (size_t d, double point) const
	Check whether the BoundingBox contains a given point in a specific dimension. More...
bool	isUnitCube () const
	Determine if this bounding box describes the unit cube \([0, 1]^d\). More...
void	setBoundary (size_t d, const BoundingBox1D &boundingBox1D)
	Sets left and right boundary for a specific dimension. More...
void	toString (std::string &text) const
	Converts the BoundingBox to a string. More...
std::string	toString () const
	Converts the BoundingBox to a string. More...
void	transformPointsToBoundingBox (DataMatrix &points) const
	Transform points in the unit cube \([0, 1]^d\) to points in the BoundingBox. More...
void	transformPointsToUnitCube (DataMatrix &points) const
	Transform points in the BoundingBox to points in the unit cube \([0, 1]^d\). More...
void	transformPointToBoundingBox (DataVector &point) const
	Transform a point in the unit cube \([0, 1]^d\) to a point in the BoundingBox. More...
double	transformPointToBoundingBox (size_t d, double point) const
	Transform a point in the unit interval \([0, 1]\) to a point in the BoundingBox in 1D. More...
void	transformPointToUnitCube (DataVector &point) const
	Transform a point in the BoundingBox to a point in the unit cube \([0, 1]^d\). More...
double	transformPointToUnitCube (size_t d, double point) const
	Transform a point in the BoundingBox to a point in the unit interval \([0, 1]\) in 1D. More...
virtual void	unserialize (const std::string &istr, int version)
	Unserialize from a string. More...
virtual void	unserialize (std::istream &istr, int version)
	Unserialize from a stream. More...
virtual	~BoundingBox ()
	Destructor. More...

Additional Inherited Members
Protected Attributes inherited from sgpp::base::BoundingBox
std::vector< BoundingBox1D >	boundingBox1Ds
	Array that contains all left boundaries for all dimensions. More...
size_t	dimension
	the number of dimensions used with the grid More...

Detailed Description

Stretching can be done in different ways:

1. No Stretching operation is done
2. Clenshaw-Curtis Stretching
3. Stretching is done via log/exp calculation
4. Sinh Stretching
5. Fitob Stretching
6. Discrete Stretching (No function used, grid points are directly taken)

Constructor & Destructor Documentation

Stretching() [1/3]

sgpp::base::Stretching::Stretching ( size_t  dimension )

explicit

Constructor for Stretching.

initializes the Stretching with using no stretching

Parameters

dimension

number of the dimensions used with the grid

Stretching() [2/3]

sgpp::base::Stretching::Stretching	(	const std::vector< BoundingBox1D > &	boundaries,
		const std::vector< Stretching1D > &	stretching1Ds
	)

Constructor for Stretching.

initializes the Stretching using the boundaries with the input type array given for each dimension

Parameters

boundaries	BoundingBox1D struct to get the boundary values for Stretching
stretching1Ds	array to define the stretching type

Stretching() [3/3]

sgpp::base::Stretching::Stretching	(	size_t	dimension,
		std::vector< double > *	coordinates
	)

Constructor for Stretching.

initializes the Stretching using the coordinates given. (For Janos' request)

Parameters

dimension	number of the dimensions used with the grid
coordinates	vector<double> array to get the boundaries, as well as the coordinates of the specific level the vector defines for each dimension.

References sgpp::base::BoundingBox::boundingBox1Ds, and sgpp::base::BoundingBox::dimension.

~Stretching()

sgpp::base::Stretching::~Stretching ( )

override

Destructor.

References sgpp::base::BoundingBox::boundingBox1Ds, sgpp::base::BoundingBox::dimension, sgpp::base::ClenshawCurtisTable::getInstance(), sgpp::base::ClenshawCurtisTable::getPoint(), python.statsfileInfo::i, level, sgpp::base::Stretching1D::lookup, LOOKUPMAX, create_dataset::type, sgpp::base::Stretching1D::x_0, and sgpp::base::Stretching1D::xsi.

Member Function Documentation

calculateNeighborLookup()

void sgpp::base::Stretching::calculateNeighborLookup

(

level_t

maxlevel

)

const

References python.statsfileInfo::i.

getAdjacentPositions()

void sgpp::base::Stretching::getAdjacentPositions	(	level_t	level,
		index_t	index,
		size_t	d,
		double &	posc,
		double &	posl,
		double &	posr
	)		const

References getCoordinate(), python.statsfileInfo::i, level, sgpp::combigrid::log2(), sgpp::base::Stretching1D::lookup, LOOKUPMAX, and sgpp::base::Stretching1D::type.

Referenced by sgpp::pde::DowndPhidPhiBBIterativeLinearStretched::operator()(), sgpp::pde::PhiPhiDownBBLinearStretched::rec(), sgpp::pde::PhiPhiUpBBLinearStretched::rec(), sgpp::base::DehierarchisationLinearStretched::rec(), sgpp::base::HierarchisationLinearStretched::rec(), and sgpp::base::GetAffectedBasisFunctions< LinearStretchedBoundaryBasis< unsigned int, unsigned int > >::recBB().

getCoordinate()

double sgpp::base::Stretching::getCoordinate ( level_t  level, index_t  index, size_t  d  ) const

inline

Referenced by getAdjacentPositions(), sgpp::base::HashGridStorage::getCoordinate(), and sgpp::base::GetAffectedBasisFunctions< LinearStretchedBoundaryBasis< unsigned int, unsigned int > >::recBB().

getDiscreteVector()

std::vector< double > * sgpp::base::Stretching::getDiscreteVector

(

bool

bSort

)

const

References sgpp::base::BoundingBox::boundingBox1Ds, sgpp::base::BoundingBox::dimension, python.statsfileInfo::i, python.utils.statsfile2gnuplot::j, and sgpp::base::Stretching1D::lookup.

Referenced by serialize().

getDiscreteVectorLevel()

std::vector< level_t > sgpp::base::Stretching::getDiscreteVectorLevel

(

)

const

getStretching1D()

const Stretching1D& sgpp::base::Stretching::getStretching1D ( size_t  d ) const

inline

References SERIALIZATION_VERSION.

getStretchingMode()

std::string sgpp::base::Stretching::getStretchingMode

(

)

const

Referenced by sgpp::base::HashGridStorage::serialize().

printLookupTable()

void sgpp::base::Stretching::printLookupTable

(

)

const

References sgpp::base::BoundingBox::dimension, python.utils.statsfile2gnuplot::j, and LOOKUPSIZE.

serialize() [1/2]

std::string sgpp::base::Stretching::serialize ( int  version = SERIALIZATION_VERSION ) const

overridevirtual

Serialize the Stretching into a string.

Parameters

version

the serialization version of the file

Returns

string that contains all Stretching information

Reimplemented from sgpp::base::BoundingBox.

Referenced by sgpp::base::HashGridStorage::serialize(), python.utils.GzipSerializer.GzipSerializer::serializeToFile(), python.learner.formatter.LearnerFormatter.LearnerFormatter::serializeToFile(), python.learner.formatter.LearnedKnowledgeFormatter.LearnedKnowledgeFormatter::serializeToFile(), python.learner.formatter.GridFormatter.GridFormatter::serializeToFile(), python.uq.analysis.asgc.ASGCKnowledgeFormatter.ASGCKnowledgeFormatter::serializeToFile(), python.uq.sampler.asgc.ASGCSamplerFormatter.ASGCSamplerFormatter::serializeToFile(), and python.uq.uq_setting.UQSettingFormatter.UQSettingFormatter::serializeToFile().

serialize() [2/2]

void sgpp::base::Stretching::serialize ( std::ostream &  ostream, int  version = SERIALIZATION_VERSION  ) const

overridevirtual

Serialize the Stretching into a stream.

Parameters

ostream	reference to a stream into that all Stretching information is written
version	the serialization version of the file

Reimplemented from sgpp::base::BoundingBox.

References sgpp::base::BoundingBox::dimension, getDiscreteVector(), python.statsfileInfo::i, sgpp::base::BoundingBox::serialize(), sgpp::base::Stretching1D::type, sgpp::base::Stretching1D::x_0, and sgpp::base::Stretching1D::xsi.

Referenced by python.utils.GzipSerializer.GzipSerializer::serializeToFile(), python.learner.formatter.LearnerFormatter.LearnerFormatter::serializeToFile(), python.learner.formatter.LearnedKnowledgeFormatter.LearnedKnowledgeFormatter::serializeToFile(), python.learner.formatter.GridFormatter.GridFormatter::serializeToFile(), python.uq.analysis.asgc.ASGCKnowledgeFormatter.ASGCKnowledgeFormatter::serializeToFile(), python.uq.sampler.asgc.ASGCSamplerFormatter.ASGCSamplerFormatter::serializeToFile(), and python.uq.uq_setting.UQSettingFormatter.UQSettingFormatter::serializeToFile().

unserialize() [1/2]

void sgpp::base::Stretching::unserialize	(	const std::string &	istr,
		const std::string &	mode,
		int	version
	)

Unserialize from a string.

Parameters

istr	string which contains a serialized Stretching
mode	stretching mode ("analytic" or "discrete")
version	the serialization version of the file

Referenced by sgpp::base::HashGridStorage::getLevelIndexMaskArraysForModEval().

unserialize() [2/2]

void sgpp::base::Stretching::unserialize	(	std::istream &	istr,
		const std::string &	mode,
		int	version
	)

Unserialize from a stream.

Parameters

istr	stream which contains a serialized Stretching
mode	stretching mode ("analytic" or "discrete")
version	the serialization version of the file

References sgpp::base::BoundingBox::boundingBox1Ds, sgpp::base::BoundingBox::dimension, python.statsfileInfo::i, sgpp::combigrid::pow(), sgpp::base::Stretching1D::type, sgpp::base::BoundingBox::unserialize(), sgpp::base::Stretching1D::x_0, and sgpp::base::Stretching1D::xsi.

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

• base/src/sgpp/base/grid/common/Stretching.hpp
• base/src/sgpp/base/grid/common/Stretching.cpp