#include <zzerrorestimator.h>

Inheritance diagram for oofem::ZZRemeshingCriteria:

Collaboration diagram for oofem::ZZRemeshingCriteria:

Public Types
enum	ZZRemeshingCriteriaModeType { stressBased }
	Mode of receiver, allows to use it in more general situations. More...

Public Member Functions
	ZZRemeshingCriteria (int n, ErrorEstimator *e)
	Constructor.
virtual	~ZZRemeshingCriteria ()
	Destructor.
double	giveRequiredDofManDensity (int num, TimeStep *tStep, int relative=0) override
double	giveDofManDensity (int num) override
RemeshingStrategy	giveRemeshingStrategy (TimeStep *tStep) override
int	estimateMeshDensities (TimeStep *tStep) override
void	initializeFrom (InputRecord &ir) override
const char *	giveInputRecordName () const override
const char *	giveClassName () const override
Public Member Functions inherited from oofem::RemeshingCriteria
	RemeshingCriteria (int n, ErrorEstimator *e)
	Constructor.
virtual	~RemeshingCriteria ()
	Destructor.
virtual void	reinitialize ()
Public Member Functions inherited from oofem::FEMComponent
	FEMComponent (int n, Domain *d)
virtual	~FEMComponent ()=default
	Virtual destructor.
Domain *	giveDomain () const
virtual void	setDomain (Domain *d)
int	giveNumber () const
void	setNumber (int num)
virtual void	updateLocalNumbering (EntityRenumberingFunctor &f)
virtual void	initializeFrom (InputRecord &ir, int priority)
virtual void	initializeFinish ()
virtual void	postInitialize ()
	Performs post initialization steps. Called after all components are created and initialized.
virtual void	giveInputRecord (DynamicInputRecord &input)
virtual void	saveContext (DataStream &stream, ContextMode mode)
virtual void	restoreContext (DataStream &stream, ContextMode mode)
virtual int	checkConsistency ()
virtual void	printOutputAt (FILE file, TimeStep tStep)
virtual void	printYourself ()
	Prints receiver state on stdout. Useful for debugging.
virtual Interface *	giveInterface (InterfaceType t)
std::string	errorInfo (const char *func) const
	Returns string for prepending output (used by error reporting macros).

Protected Attributes
FloatArray	nodalDensities
	Array of nodal mesh densities.
RemeshingStrategy	remeshingStrategy
	Remeshing strategy proposed.
StateCounterType	stateCounter
	Actual values (densities) state counter.
ZZRemeshingCriteriaModeType	mode
	Mode of receiver.
double	requiredError
	Required error to obtain.
double	minElemSize
	Minimum element size allowed.
Protected Attributes inherited from oofem::RemeshingCriteria
ErrorEstimator *	ee
CommunicatorBuff *	commBuff
	Common Communicator buffer.
ProblemCommunicator *	communicator
	Communicator.
bool	initCommMap
	Communication init flag.
Protected Attributes inherited from oofem::FEMComponent
int	number
	Component number.
Domain *	domain
	Link to domain object, useful for communicating with other FEM components.

Detailed Description

The class representing Zienkiewicz-Zhu remeshing criteria. (Assumes that error is equally distributed between elements, then the requirement for max. permissible error can be translated into placing a limit on the error on each element.) The basic task is to evaluate the required mesh density (at nodes) on given domain, based on informations provided by the compatible error estimator.

The remeshing criteria is maintained by the corresponding error estimator. This is mainly due to fact, that is necessary for given EE to create compatible RC. In our concept, the EE is responsible.

Definition at line 183 of file zzerrorestimator.h.

Member Enumeration Documentation

◆ ZZRemeshingCriteriaModeType

enum oofem::ZZRemeshingCriteria::ZZRemeshingCriteriaModeType

Mode of receiver, allows to use it in more general situations.

Enumerator
stressBased

Definition at line 187 of file zzerrorestimator.h.

Constructor & Destructor Documentation

◆ ZZRemeshingCriteria()

oofem::ZZRemeshingCriteria::ZZRemeshingCriteria	(	int	n,
		ErrorEstimator *	e )

Constructor.

Definition at line 322 of file zzerrorestimator.C.

References mode, oofem::RemeshingCriteria::RemeshingCriteria(), stateCounter, and stressBased.

◆ ~ZZRemeshingCriteria()

virtual oofem::ZZRemeshingCriteria::~ZZRemeshingCriteria ( )

inlinevirtual

Destructor.

Definition at line 207 of file zzerrorestimator.h.

Member Function Documentation

◆ estimateMeshDensities()

int oofem::ZZRemeshingCriteria::estimateMeshDensities ( TimeStep * tStep )

overridevirtual

Estimates the nodal densities.

Parameters

tStep Time step.

Implements oofem::RemeshingCriteria.

Definition at line 357 of file zzerrorestimator.C.

References oofem::FEMComponent::domain, oofem::RemeshingCriteria::ee, giveDofManDensity(), oofem::TimeStep::giveSolutionStateCounter(), oofem::globalErrorEEV, oofem::globalNormEEV, oofem::indicatorET, oofem::internalStressET, oofem::min(), mode, nodalDensities, oofem::NoRemeshing_RS, OOFEM_ERROR, oofem::RemeshingFromPreviousState_RS, remeshingStrategy, requiredError, stateCounter, and stressBased.

Referenced by giveRemeshingStrategy(), and giveRequiredDofManDensity().

◆ giveClassName()

const char * oofem::ZZRemeshingCriteria::giveClassName ( ) const

inlineoverridevirtual

Returns: Class name of the receiver.

Implements oofem::FEMComponent.

Definition at line 216 of file zzerrorestimator.h.

◆ giveDofManDensity()

double oofem::ZZRemeshingCriteria::giveDofManDensity ( int num )

overridevirtual

Returns existing mesh size for given dof manager.

Parameters

num	DofMan number.

Implements oofem::RemeshingCriteria.

Definition at line 464 of file zzerrorestimator.C.

References oofem::IntArray::at(), oofem::Element::computeMeanSize(), oofem::FEMComponent::domain, oofem::ConnectivityTable::giveDofManConnectivityArray(), oofem::IntArray::giveSize(), and oofem::min().

Referenced by estimateMeshDensities(), and giveRequiredDofManDensity().

◆ giveInputRecordName()

const char * oofem::ZZRemeshingCriteria::giveInputRecordName ( ) const

inlineoverridevirtual

Returns: Input record name of the receiver.

Implements oofem::FEMComponent.

Definition at line 215 of file zzerrorestimator.h.

◆ giveRemeshingStrategy()

RemeshingStrategy oofem::ZZRemeshingCriteria::giveRemeshingStrategy ( TimeStep * tStep )

overridevirtual

Determines, if the remeshing is needed, and if needed, the type of strategy used.

Parameters

tStep Time step.

Implements oofem::RemeshingCriteria.

Definition at line 350 of file zzerrorestimator.C.

References estimateMeshDensities(), and remeshingStrategy.

◆ giveRequiredDofManDensity()

double oofem::ZZRemeshingCriteria::giveRequiredDofManDensity	(	int	num,
		TimeStep *	tStep,
		int	relative = 0 )

overridevirtual

Returns the required mesh size n given dof manager. The mesh density is defined as a required element size (in 1D the element length, in 2D the square from element area).

Parameters

num	Dofman number.
tStep	Time step.
relative	If zero, then actual density is returned, otherwise the relative density to current is returned.

Implements oofem::RemeshingCriteria.

Definition at line 329 of file zzerrorestimator.C.

References estimateMeshDensities(), giveDofManDensity(), oofem::max(), minElemSize, and nodalDensities.

◆ initializeFrom()

void oofem::ZZRemeshingCriteria::initializeFrom ( InputRecord & ir )

overridevirtual

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. Note that initializeFrom may be called mutiple times.

See also: IR_GIVE_FIELD; IR_GIVE_OPTIONAL_FIELD

Parameters

ir	Input record to initialize from.
priority	Priority of the input record. This is used to determine the order of initialization

Reimplemented from oofem::FEMComponent.

Definition at line 456 of file zzerrorestimator.C.

References _IFT_ZZRemeshingCriteria_minelemsize, _IFT_ZZRemeshingCriteria_requirederror, IR_GIVE_FIELD, minElemSize, and requiredError.

Member Data Documentation

◆ minElemSize

double oofem::ZZRemeshingCriteria::minElemSize

protected

Minimum element size allowed.

Definition at line 201 of file zzerrorestimator.h.

Referenced by giveRequiredDofManDensity(), and initializeFrom().

◆ mode

ZZRemeshingCriteriaModeType oofem::ZZRemeshingCriteria::mode

protected

Mode of receiver.

Definition at line 197 of file zzerrorestimator.h.

Referenced by estimateMeshDensities(), and ZZRemeshingCriteria().

◆ nodalDensities

FloatArray oofem::ZZRemeshingCriteria::nodalDensities

protected

Array of nodal mesh densities.

Definition at line 191 of file zzerrorestimator.h.

Referenced by estimateMeshDensities(), and giveRequiredDofManDensity().

◆ remeshingStrategy

RemeshingStrategy oofem::ZZRemeshingCriteria::remeshingStrategy

protected

Remeshing strategy proposed.

Definition at line 193 of file zzerrorestimator.h.

Referenced by estimateMeshDensities(), and giveRemeshingStrategy().

◆ requiredError

double oofem::ZZRemeshingCriteria::requiredError

protected

Required error to obtain.

Definition at line 199 of file zzerrorestimator.h.

Referenced by estimateMeshDensities(), and initializeFrom().

◆ stateCounter

StateCounterType oofem::ZZRemeshingCriteria::stateCounter

protected

Actual values (densities) state counter.

Definition at line 195 of file zzerrorestimator.h.

Referenced by estimateMeshDensities(), and ZZRemeshingCriteria().

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

Public Types

Public Member Functions

Protected Attributes

Detailed Description

Member Enumeration Documentation

◆ ZZRemeshingCriteriaModeType

Constructor & Destructor Documentation

◆ ZZRemeshingCriteria()

◆ ~ZZRemeshingCriteria()

Member Function Documentation

◆ estimateMeshDensities()

◆ giveClassName()

◆ giveDofManDensity()

◆ giveInputRecordName()

◆ giveRemeshingStrategy()

◆ giveRequiredDofManDensity()

◆ initializeFrom()

Member Data Documentation

◆ minElemSize

◆ mode

◆ nodalDensities

◆ remeshingStrategy

◆ requiredError

◆ stateCounter