Diffpack Documentation

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DiracDelta Class Reference

array of Dirac delta functions for finite element methods. More...

#include <DiracDelta.h>

List of all members.

Public Methods
	DiracDelta ()
	~DiracDelta ()
void	scan (MenuSystem &menu, GridFE &grid, const int delta_number=1)
void	init (GridFE &grid)
int	getElm (int i) const
Ptv(real)	getLocalPt (int i) const
Ptv(real)	getGlobalPt (int i) const
real	getMagnitude (int i) const
int	getNoEntries () const
void	getGlobalPts (VecSimple(Ptv(real)) &pts)
void	setPoint (int i, const Ptv(real) &new_point, GridFE &grid)
bool	deltaInElm (int e) const
void	add2ElmMatVec (ElmMatVec &elmat, FiniteElement &fe)
void	turnON ()
void	turnOFF ()
bool	turnedON ()
void	print (Os os) const
bool	ok () const
Static Public Methods
void	defineStatic (MenuSystem &menu, int level=MAIN, const int delta_number=1)
Protected Attributes
VecSimplest(SingleDiracDelta)	delta_array
bool	active

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Detailed Description

array of Dirac delta functions for finite element methods.

NAME: DiracDelta - array of Dirac delta functions for finite element methods

DESCRIPTION:

Class "DiracDelta" contains a user specified collection of Dirac delta functions for use in finite element programming. (The class contains an array of "SingleDiracDelta" function objects and functionality for the delta function is placed in "SingleDiracDelta".)

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Constructor & Destructor Documentation

DiracDelta::DiracDelta ( ) [inline]

The constructor takes no arguments. Initialization is performed by the "scan" function.

DiracDelta::~DiracDelta ( ) [inline]

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Member Function Documentation

void DiracDelta::add2ElmMatVec ( ElmMatVec & elmat, FiniteElement & fe )

modifies the right hand side of an "ElmMatVec" object according to the action of a series of delta functions.

void DiracDelta::defineStatic ( MenuSystem & menu, int level = MAIN, const int delta_number = 1 ) [static]

bool DiracDelta::deltaInElm ( int e ) const

int DiracDelta::getElm ( int i ) const [inline]

returns the element number where delta function number "i" acts.

Ptv(real) DiracDelta::getGlobalPt ( int i ) const [inline]

returns the global (physical) coordinates of the point where delta function number i" acts.

void DiracDelta::getGlobalPts ( VecSimple(Ptv(real)) & pts )

Ptv(real) DiracDelta::getLocalPt ( int i ) const [inline]

returns the local element coordinates of the point where delta function number "i" acts.

real DiracDelta::getMagnitude ( int i ) const [inline]

returns the magnitude of delta function number "i". Notice that the standard delta function is multiplied by this magnitude, and this product represents the delta function in class "DiracDelta".

int DiracDelta::getNoEntries ( ) const [inline]

returns the number of delta functions handled by this class object.

void DiracDelta::init ( GridFE & grid )

bool DiracDelta::ok ( ) const

void DiracDelta::print ( Os os ) const

dumps the contents of the delta functions.

void DiracDelta::scan ( MenuSystem & menu, GridFE & grid, const int delta_number = 1 )

void DiracDelta::setPoint ( int i, const Ptv(real) & new_point, GridFE & grid )

void DiracDelta::turnOFF ( ) [inline]

void DiracDelta::turnON ( ) [inline]

bool DiracDelta::turnedON ( ) [inline]

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Member Data Documentation

bool DiracDelta::active [protected]

VecSimplest(SingleDiracDelta) DiracDelta::delta_array [protected]

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

• DiracDelta.h

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