sgpp::base::HierarchisationLinearStretched Class Reference

Class that implements the hierarchisation on a linear sparse grid. More...

#include <HierarchisationLinearStretched.hpp>

Inheritance diagram for sgpp::base::HierarchisationLinearStretched:

Public Member Functions
	HierarchisationLinearStretched (GridStorage &storage)
	Constructor, must be bind to a grid. More...
virtual void	operator() (DataVector &source, DataVector &result, grid_iterator &index, size_t dim)
	Implements operator() needed by the sweep class during the grid traversal. More...
virtual	~HierarchisationLinearStretched ()
	Destructor. More...

Protected Types
typedef GridStorage::grid_iterator	grid_iterator

Protected Member Functions
void	rec (DataVector &source, DataVector &result, grid_iterator &index, size_t dim, double fl, double fr)
	Recursive hierarchisation algorithm, this algorithms works in-place -> source should be equal to result. More...

Protected Attributes
GridStorage &	storage
	the grid object More...
Stretching *	stretch
	the stretching object More...

Detailed Description

Class that implements the hierarchisation on a linear sparse grid.

Therefore the ()operator has to be implement in order to use the sweep algorithm for the grid traversal

Member Typedef Documentation

grid_iterator

typedef GridStorage::grid_iterator sgpp::base::HierarchisationLinearStretched::grid_iterator

protected

Constructor & Destructor Documentation

HierarchisationLinearStretched()

sgpp::base::HierarchisationLinearStretched::HierarchisationLinearStretched ( GridStorage &  storage )

explicit

Constructor, must be bind to a grid.

Parameters

storage

the grid storage object of the the grid, on which the hierarchisation should be executed

~HierarchisationLinearStretched()

sgpp::base::HierarchisationLinearStretched::~HierarchisationLinearStretched ( )

virtual

Destructor.

Member Function Documentation

operator()()

void sgpp::base::HierarchisationLinearStretched::operator() ( DataVector &  source, DataVector &  result, grid_iterator &  index, size_t  dim  )

virtual

Implements operator() needed by the sweep class during the grid traversal.

This function is applied to the whole grid.

Parameters

source	this DataVector holds the node base coefficients of the function that should be applied to the sparse grid
result	this DataVector holds the linear base coefficients of the sparse grid's ansatz-functions
index	a iterator object of the grid
dim	current fixed dimension of the 'execution direction'

Reimplemented in sgpp::base::HierarchisationLinearStretchedBoundary.

References rec().

rec()

void sgpp::base::HierarchisationLinearStretched::rec ( DataVector &  source, DataVector &  result, grid_iterator &  index, size_t  dim, double  fl, double  fr  )

protected

Recursive hierarchisation algorithm, this algorithms works in-place -> source should be equal to result.

Parameters

source	this DataVector holds the node base coefficients of the function that should be applied to the sparse grid
result	this DataVector holds the linear base coefficients of the sparse grid's ansatz-functions
index	a iterator object of the grid
dim	current fixed dimension of the 'execution direction'
fl	left value of the current region regarded in this step of the recursion
fr	right value of the current region regarded in this step of the recursion

References sgpp::base::HashGridIterator::get(), sgpp::base::Stretching::getAdjacentPositions(), sgpp::base::HashGridIterator::hint(), sgpp::base::HashGridStorage::isInvalidSequenceNumber(), sgpp::base::HashGridIterator::leftChild(), sgpp::base::HashGridIterator::seq(), sgpp::base::HashGridIterator::stepRight(), storage, stretch, and sgpp::base::HashGridIterator::up().

Referenced by operator()(), and sgpp::base::HierarchisationLinearStretchedBoundary::operator()().

Member Data Documentation

storage

GridStorage& sgpp::base::HierarchisationLinearStretched::storage

protected

the grid object

Referenced by sgpp::base::HierarchisationLinearStretchedBoundary::operator()(), and rec().

stretch

Stretching* sgpp::base::HierarchisationLinearStretched::stretch

protected

the stretching object

Referenced by rec().

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

• base/src/sgpp/base/operation/hash/common/algorithm_sweep/HierarchisationLinearStretched.hpp
• base/src/sgpp/base/operation/hash/common/algorithm_sweep/HierarchisationLinearStretched.cpp