#include <localgaussianrandomfunction.h>

Inheritance diagram for oofem::LocalGaussianRandomFunction:

Collaboration diagram for oofem::LocalGaussianRandomFunction:

Public Member Functions
	LocalGaussianRandomFunction (int n, Domain *d)
	Constructor.
virtual	~LocalGaussianRandomFunction ()
	Destructor.
void	evaluate (FloatArray &answer, const std ::map< std ::string, FunctionArgument > &valDict, GaussPoint *gp=nullptr, double param=0.) override
double	evaluateAtTime (double t) override
double	evaluateVelocityAtTime (double t) override
double	evaluateAccelerationAtTime (double t) override
void	initializeFrom (InputRecord &ir) override
const char *	giveClassName () const override
const char *	giveInputRecordName () const override
Public Member Functions inherited from oofem::Function
	Function (int n, Domain *d)
virtual	~Function ()
	Destructor.
virtual double	evaluate (TimeStep *tStep, ValueModeType mode)
virtual double	evaluate (const std ::map< std ::string, FunctionArgument > &valDict)
double	giveFunctionParameter (int paramID)
void	saveContext (DataStream &stream, ContextMode mode) override
void	restoreContext (DataStream &stream, ContextMode mode) override
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 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 Member Functions
double	ran1 (long *idum)
double	normalCdfInverse (double cdf, double a, double b)
double	normal01CdfInverse (double p)
double	dpolyValue (int n, double a[], double x)

Protected Attributes
long	randomInteger
	Integer which is the input of the pseudo-random number generator.
double	mean
	Gauss distribution parameters.
double	variance
Protected Attributes inherited from oofem::FEMComponent
int	number
	Component number.
Domain *	domain
	Link to domain object, useful for communicating with other FEM components.

Additional Inherited Members
Public Attributes inherited from oofem::Function
Domain *	funcDomain
int	parameterType

Detailed Description

This class implements a local (no spatial correlation) random function using Gaussian distribution.

Author: Peter Grassl

Definition at line 53 of file localgaussianrandomfunction.h.

Constructor & Destructor Documentation

◆ LocalGaussianRandomFunction()

oofem::LocalGaussianRandomFunction::LocalGaussianRandomFunction	(	int	n,
		Domain *	d )

Constructor.

Definition at line 44 of file localgaussianrandomfunction.C.

References oofem::Function::Function().

◆ ~LocalGaussianRandomFunction()

oofem::LocalGaussianRandomFunction::~LocalGaussianRandomFunction ( )

virtual

Destructor.

Definition at line 47 of file localgaussianrandomfunction.C.

Member Function Documentation

◆ dpolyValue()

double oofem::LocalGaussianRandomFunction::dpolyValue	(	int	n,
		double	a[],
		double	x )

protected

Definition at line 245 of file localgaussianrandomfunction.C.

Referenced by normal01CdfInverse().

◆ evaluate()

void oofem::LocalGaussianRandomFunction::evaluate	(	FloatArray &	answer,
		const std ::map< std ::string, FunctionArgument > &	valDict,
		GaussPoint *	gp = nullptr,
		double	param = 0. )

overridevirtual

Returns the value of the function for given input.

Parameters

valDict	Map with inputs.
answer	Function value.

Reimplemented from oofem::Function.

Definition at line 51 of file localgaussianrandomfunction.C.

References evaluateAtTime(), and oofem::Vec1().

◆ evaluateAccelerationAtTime()

double oofem::LocalGaussianRandomFunction::evaluateAccelerationAtTime ( double t )

overridevirtual

Returns the second time derivative of the function at given time.

Parameters

t Time.

Returns: \( f''(t) \).

Implements oofem::Function.

Definition at line 69 of file localgaussianrandomfunction.C.

References OOFEM_ERROR.

◆ evaluateAtTime()

double oofem::LocalGaussianRandomFunction::evaluateAtTime ( double t )

overridevirtual

Returns the value of the function at given time.

Parameters

t Time.

Returns: \( f(t) \).

Reimplemented from oofem::Function.

Definition at line 57 of file localgaussianrandomfunction.C.

References mean, normalCdfInverse(), ran1(), randomInteger, and variance.

Referenced by evaluate().

◆ evaluateVelocityAtTime()

double oofem::LocalGaussianRandomFunction::evaluateVelocityAtTime ( double t )

overridevirtual

Returns the first time derivative of the function at given time.

Parameters

t Time.

Returns: \( f'(t) \).

Implements oofem::Function.

Definition at line 63 of file localgaussianrandomfunction.C.

References OOFEM_ERROR.

◆ giveClassName()

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

inlineoverridevirtual

Returns: Class name of the receiver.

Implements oofem::FEMComponent.

Definition at line 73 of file localgaussianrandomfunction.h.

◆ giveInputRecordName()

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

inlineoverridevirtual

Returns: Input record name of the receiver.

Implements oofem::FEMComponent.

Definition at line 74 of file localgaussianrandomfunction.h.

References _IFT_LocalGaussianRandomFunction_Name.

◆ initializeFrom()

void oofem::LocalGaussianRandomFunction::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.