Implementation of polyline nonlocal barrier. More...

#include <polylinenonlocalbarrier.h>

Inheritance diagram for oofem::PolylineNonlocalBarrier:

Collaboration diagram for oofem::PolylineNonlocalBarrier:

Public Member Functions
	PolylineNonlocalBarrier (int n, Domain *aDomain)
	Constructor. More...

virtual	~PolylineNonlocalBarrier ()
	Virtual destructor. More...

virtual bool	isActivated (const FloatArray &c1, const FloatArray &c2)

virtual void	applyConstraint (const FloatArray &c1, const FloatArray &c2, double &weight, bool &shieldFlag, NonlocalMaterialExtensionInterface *nei)
	Abstract method modifying the integration weight between master (c1) and source (c2) point. More...

virtual IRResultType	initializeFrom (InputRecord *ir)
	Initializes receiver according to object description stored in input record. More...

virtual double	calculateMinimumDistanceFromBoundary (const FloatArray &coords)
	Abstract method calculating the minimum distance of the Gauss Point from the nonlocal boundaries. More...

double	giveDistancePointLine (const FloatArray &coordsA, const FloatArray &coordsB, const FloatArray &coordsGP)
	This function computes the length of the normal to the line defined by 2 vertices that passes through the given Gauss Point. More...

virtual const char *	giveInputRecordName () const

virtual const char *	giveClassName () const

Public Member Functions inherited from oofem::NonlocalBarrier
	NonlocalBarrier (int n, Domain *aDomain)
	Constructor. More...

virtual	~NonlocalBarrier ()
	Destructor. More...

Public Member Functions inherited from oofem::FEMComponent
	FEMComponent (int n, Domain *d)
	Regular constructor, creates component with given number and belonging to given domain. More...

virtual	~FEMComponent ()
	Virtual destructor. More...

Domain *	giveDomain () const

virtual void	setDomain (Domain *d)
	Sets associated Domain. More...

int	giveNumber () const

void	setNumber (int num)
	Sets number of receiver. More...

virtual void	updateLocalNumbering (EntityRenumberingFunctor &f)
	Local renumbering support. More...

virtual void	giveInputRecord (DynamicInputRecord &input)
	Setups the input record string of receiver. More...

virtual contextIOResultType	saveContext (DataStream &stream, ContextMode mode, void *obj=NULL)
	Stores receiver state to output stream. More...

virtual contextIOResultType	restoreContext (DataStream &stream, ContextMode mode, void *obj=NULL)
	Restores the receiver state previously written in stream. More...

virtual int	checkConsistency ()
	Allows programmer to test some internal data, before computation begins. More...

virtual void	printOutputAt (FILE file, TimeStep tStep)
	Prints output of receiver to stream, for given time step. More...

virtual void	printYourself ()
	Prints receiver state on stdout. Useful for debugging. More...

virtual Interface *	giveInterface (InterfaceType t)
	Interface requesting service. More...

std::string	errorInfo (const char *func) const
	Returns string for prepending output (used by error reporting macros). More...

Protected Attributes
int	localXCoordIndx
	Local x-coordinate index. More...

int	localYCoordIndx
	Local y-coordinate index. More...

IntArray	vertexNodes
	List of polyline vertices. More...

Protected Attributes inherited from oofem::FEMComponent
int	number
	Component number. More...

Domain *	domain
	Link to domain object, useful for communicating with other FEM components. More...

Detailed Description

Implementation of polyline nonlocal barrier.

It is a composite one-dimensional cell consisting of one or more connected lines. The polyline is defined by an ordered list of n+1 vertices (nodes), where n is the number of lines in the polyline. Each pair of points (i,i+1) defines a line.

The purpose of this class is to model barrier for nonlocal averaging process (visibility criterion). Usually, the given remote integration point influences to the source point nonlocal average if the averaging function at source point and evaluated for remote point has nonzero value. The barrier allows to exclude additional points, which may be close enough, but due to several reasons there is no influence between these points (for example, they can be separated by a notch).

Definition at line 65 of file polylinenonlocalbarrier.h.

Constructor & Destructor Documentation

oofem::PolylineNonlocalBarrier::PolylineNonlocalBarrier	(	int	n,
		Domain *	aDomain
	)

Constructor.

Creates an element with number n belonging to domain aDomain.

Parameters

n	Barrier's number
aDomain	Pointer to the domain to which element belongs.

oofem::PolylineNonlocalBarrier::~PolylineNonlocalBarrier ( )

virtual

Virtual destructor.

Definition at line 55 of file polylinenonlocalbarrier.C.

Member Function Documentation

void oofem::PolylineNonlocalBarrier::applyConstraint	(	const FloatArray &	c1,
		const FloatArray &	c2,
		double &	weight,
		bool &	shieldFlag,
		NonlocalMaterialExtensionInterface *	nei
	)

virtual

Abstract method modifying the integration weight between master (c1) and source (c2) point.

Parameters

	c1	Coordinates of master point.
	c2	Coordinates of source point.
	weight	Original integration weight; on output modified weight.
[out]	shieldFlag	Set to true if shielding is activated.
	nei	The element with the non local material extension.

Implements oofem::NonlocalBarrier.

Definition at line 61 of file polylinenonlocalbarrier.C.

References isActivated().

double oofem::PolylineNonlocalBarrier::calculateMinimumDistanceFromBoundary ( const FloatArray & coords )

virtual

Abstract method calculating the minimum distance of the Gauss Point from the nonlocal boundaries.

Parameters

coords	Coordinates of the Gauss Point
maxPossibleDistance	Distance from the boundary beyond which the nonlocal radius(as it is interpreted in each weight function) becomes equal to the user-defined

Returns: the minimum value of the minimum distance from nonlocal boundary and maxPossibleDistance

Implements oofem::NonlocalBarrier.

Definition at line 122 of file polylinenonlocalbarrier.C.

References oofem::IntArray::at(), oofem::FloatArray::at(), oofem::FEMComponent::domain, giveDistancePointLine(), oofem::Domain::giveNode(), oofem::IntArray::giveSize(), oofem::FloatArray::giveSize(), oofem::min(), and vertexNodes.

virtual const char* oofem::PolylineNonlocalBarrier::giveClassName ( ) const

inlinevirtual

Returns: Class name of the receiver.

Implements oofem::FEMComponent.

Definition at line 105 of file polylinenonlocalbarrier.h.

double oofem::PolylineNonlocalBarrier::giveDistancePointLine	(	const FloatArray &	coordsA,
		const FloatArray &	coordsB,
		const FloatArray &	coordsGP
	)

This function computes the length of the normal to the line defined by 2 vertices that passes through the given Gauss Point.

If the intersection point lies outside the line segment the minimum of the distances between the Gauss Point and the two vertices is returned

Parameters

coordsA	Coordinates of the ith vertex of the polyline
coordsB	Coordinates of the (i+1)th vertex of the polyline
coordsGP	Coordinates of the Gauss Point whose nonlocal interactions domain is modified based on the distance based averaging

Definition at line 147 of file polylinenonlocalbarrier.C.

References oofem::FloatArray::add(), oofem::FloatArray::computeNorm(), oofem::FloatArray::computeSquaredNorm(), oofem::FloatArray::dotProduct(), oofem::FloatArray::subtract(), and oofem::FloatArray::times().

Referenced by calculateMinimumDistanceFromBoundary().

virtual const char* oofem::PolylineNonlocalBarrier::giveInputRecordName ( ) const

inlinevirtual

Returns: Input record name of the receiver.

Implements oofem::FEMComponent.

Definition at line 104 of file polylinenonlocalbarrier.h.

References _IFT_PolylineNonlocalBarrier_Name.

IRResultType oofem::PolylineNonlocalBarrier::initializeFrom ( InputRecord * ir )

virtual

Initializes receiver according to object description stored in input record.

This function is called immediately after creating object using constructor. Input record can be imagined as data record in component database belonging to receiver. Receiver may use value-name extracting functions to extract particular field from record.