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ProjIm Class Reference

projection operators between grids. More...

#include <ProjIm.h>

Inheritance diagram for ProjIm::

Public Methods
	ProjIm (const char *description_="Projecton operator")
	ProjIm (const Proj_prm &prm, const char *description_="Projection operator")
virtual	~ProjIm ()
virtual bool	rebindDOF (DegFreeFE &coarse, DegFreeFE &fine)
virtual bool	ok () const
virtual void	apply (const LinEqVector &c, LinEqVector &d, TransposeMode tpmode, bool add_to_d=false)
virtual LinEqMatrix&	A ()
virtual String	description () const
virtual void	scale (real s)
virtual void	scale (const LinEqVector &s, TransposeMode t)
int	getWork () const
real	getStorage () const
Protected Attributes
Handle(DegFreeFE)	coarseDeg
Handle(DegFreeFE)	fineDeg

Detailed Description

projection operators between grids.

NAME: ProjIm - projection operators between grids

DESCRIPTION:

This projection operator interpolates a field using the input vectors in "apply" as field values. The class needs access to the "DegFreeFE" objects for the two involved grids.

Constructor & Destructor Documentation

ProjIm::ProjIm ( const char * description_ = "Projecton operator" )

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

ProjIm::ProjIm ( const Proj_prm & prm,

const char * description_ = "Projection operator" )

See documentation of one of the overloaded constructor.

ProjIm::~ProjIm ( ) [virtual]

Member Function Documentation

LinEqMatrix & ProjIm::A ( ) [virtual]

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

void ProjIm::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 ProjIm::description ( ) const [virtual]

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

real ProjIm::getStorage ( ) const [virtual]

Reimplemented from Proj.

int ProjIm::getWork ( ) const [virtual]

Reimplemented from Proj.

bool ProjIm::ok ( ) const [virtual]

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

bool ProjIm::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 ProjIm::scale ( const LinEqVector & s,

TransposeMode t ) [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 ProjIm::scale ( real s ) [virtual]

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

Member Data Documentation

Handle(DegFreeFE) ProjIm::coarseDeg [protected]

Handle(DegFreeFE) ProjIm::fineDeg [protected]

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

ProjIm.h