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ProjInterp Class Reference

projection operators between matching grids. More...

#include <ProjInterp.h>

Inheritance diagram for ProjInterp::

Public Methods
	ProjInterp (const char *description_="Projection operator")
	ProjInterp (const Proj_prm &, const char *description_="Projection operator")
virtual	~ProjInterp ()
virtual bool	rebindDOF (DegFreeFE &coarse, DegFreeFE &fine)
virtual String	description () const
virtual void	apply (const LinEqVector &c, LinEqVector &d, TransposeMode tpmode, bool add_to_d=false)
virtual bool	ok () const
virtual int	getWork () const
virtual real	getStorage () const
virtual LinEqMatrix&	A ()
virtual void	scale (const LinEqVector &s, TransposeMode tpmode)
virtual void	scale (real s)
Protected Methods
virtual void	interpolate (GridFE &coarse, GridFE &fine)
virtual void	valuePt (GridFE &coarse, int &element, Ptv(real)&loc_pt, const Ptv(real) &x)
Protected Attributes
real	eps
int	ndpn
int	row
int	counter
int	nhits
VecSimple(int)	from
VecSimple(int)	to
int	nde

Detailed Description

projection operators between matching grids.

NAME: ProjInterp - projection operators between matching grids

DESCRIPTION:

This projection operator interpolates a field using a compact vector-based representation. The operator is filled automatically once given access to the "DegFreeFE" objects for the two involved grids.

Constructor & Destructor Documentation

ProjInterp::ProjInterp ( const char * description_ = "Projection operator" )

See class "Proj". Notice that two "DegFreeFE" objects must be supplied by use of "rebindDOF".

ProjInterp::ProjInterp ( const Proj_prm &,

const char * description_ = "Projection operator" )

See documentation of one of the overloaded constructor.

ProjInterp::~ProjInterp ( ) [virtual]

Member Function Documentation

LinEqMatrix & ProjInterp::A ( ) [virtual]

returns access to the matrix representation of the projection operator.
Reimplemented from Proj.

void ProjInterp::apply ( const LinEqVector & c,

LinEqVector & d,

TransposeMode tpmode,

bool add_to_d = false ) [virtual]

applies the projection operator to the vector "c", producting the vector "d". Depending on the "tpmode" argument, either operator or its transposed is used. If the flag "add_to_d" is true, the computed results is added to "d", otherwise it overwrites any prior contents in "d".
Reimplemented from Proj.

String ProjInterp::description ( ) const [virtual]

returns the "String" description of the projection operator.
Reimplemented from Proj.

real ProjInterp::getStorage ( ) const [virtual]

Reimplemented from Proj.

int ProjInterp::getWork ( ) const [virtual]

Reimplemented from Proj.

void ProjInterp::interpolate ( GridFE & coarse,

GridFE & fine ) [protected, virtual]

bool ProjInterp::ok ( ) const [virtual]

returns true if the projection operator is in a consistent state.
Reimplemented from Proj.

bool ProjInterp::rebindDOF ( DegFreeFE & coarse,

DegFreeFE & fine ) [virtual]

connects the projection operator to two "DegFreeFE" objects, one for the coarse and one for the fine grid.
Reimplemented from Proj.

void ProjInterp::scale ( real s ) [virtual]

See documentation of one of the overloaded functions.
Reimplemented from Proj.

void ProjInterp::scale ( const LinEqVector & s,

TransposeMode tpmode ) [virtual]

scales the projection operator according to input values. If the a scalar constant "s" is applied, all entries in the operator is scaled by the constant value, "P(i,j)=s*P(i,j)".
If the input sepcifies a "LinEqVector", the operator is scaled row- or columnwise. That is, for "tpmode=TRANSPOSED" the rows are scaled, "P(i,j) = s(i)*P(i,j)". Similarly, for "tpmode=NOT_TRANSPOSED" the wolumns are scaled as "P(i,j)=s(j)*P(i,j)".
Reimplemented from Proj.

void ProjInterp::valuePt ( GridFE & coarse,

int & element,

Ptv(real)& loc_pt,

const Ptv(real) & x ) [protected, virtual]

Member Data Documentation

int ProjInterp::counter [protected]

real ProjInterp::eps [protected]

VecSimple(int) ProjInterp::from [protected]

int ProjInterp::nde [protected]

int ProjInterp::ndpn [protected]

int ProjInterp::nhits [protected]

int ProjInterp::row [protected]

VecSimple(int) ProjInterp::to [protected]

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

ProjInterp.h