OOFEM 3.0
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oofem::ConstantFunction Class Reference

#include <constantfunction.h>

Inheritance diagram for oofem::ConstantFunction:
Collaboration diagram for oofem::ConstantFunction:

Public Member Functions

 ConstantFunction (int i, Domain *d)
virtual ~ConstantFunction ()
 Destructor.
double giveValue ()
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
void giveInputRecord (DynamicInputRecord &input) override
const char * giveClassName () const override
const char * giveInputRecordName () const override
void saveContext (DataStream &stream, ContextMode mode) override
void restoreContext (DataStream &stream, ContextMode mode) 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.
DomaingiveDomain () 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 int checkConsistency ()
virtual void printOutputAt (FILE *file, TimeStep *tStep)
virtual void printYourself ()
 Prints receiver state on stdout. Useful for debugging.
virtual InterfacegiveInterface (InterfaceType t)
std::string errorInfo (const char *func) const
 Returns string for prepending output (used by error reporting macros).

Private Attributes

double value
 Value of receiver.

Additional Inherited Members

Public Attributes inherited from oofem::Function
DomainfuncDomain
int parameterType
Protected Attributes inherited from oofem::FEMComponent
int number
 Component number.
Domaindomain
 Link to domain object, useful for communicating with other FEM components.

Detailed Description

Class implementing time function that is constant in time; \( f(t) = C \).

Definition at line 47 of file constantfunction.h.

Constructor & Destructor Documentation

◆ ConstantFunction()

oofem::ConstantFunction::ConstantFunction ( int i,
Domain * d )
inline

Constructor. Creates constant load time function with given number, belonging to given domain.

Parameters
iLoad time function number.
dDomain to which new object will belongs.

Definition at line 59 of file constantfunction.h.

References oofem::Function::Function(), and value.

◆ ~ConstantFunction()

virtual oofem::ConstantFunction::~ConstantFunction ( )
inlinevirtual

Destructor.

Definition at line 63 of file constantfunction.h.

Member Function Documentation

◆ evaluate()

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

Returns the value of the function for given input.

Parameters
valDictMap with inputs.
answerFunction value.

Reimplemented from oofem::Function.

Definition at line 68 of file constantfunction.h.

References giveValue().

◆ evaluateAccelerationAtTime()

double oofem::ConstantFunction::evaluateAccelerationAtTime ( double t)
inlineoverridevirtual

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

Parameters
tTime.
Returns
\( f''(t) \).

Implements oofem::Function.

Definition at line 71 of file constantfunction.h.

◆ evaluateAtTime()

double oofem::ConstantFunction::evaluateAtTime ( double t)
inlineoverridevirtual

Returns the value of the function at given time.

Parameters
tTime.
Returns
\( f(t) \).

Reimplemented from oofem::Function.

Definition at line 69 of file constantfunction.h.

References giveValue().

◆ evaluateVelocityAtTime()

double oofem::ConstantFunction::evaluateVelocityAtTime ( double t)
inlineoverridevirtual

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

Parameters
tTime.
Returns
\( f'(t) \).

Implements oofem::Function.

Definition at line 70 of file constantfunction.h.

◆ giveClassName()

const char * oofem::ConstantFunction::giveClassName ( ) const
inlineoverridevirtual
Returns
Class name of the receiver.

Implements oofem::FEMComponent.

Definition at line 76 of file constantfunction.h.

◆ giveInputRecord()

void oofem::ConstantFunction::giveInputRecord ( DynamicInputRecord & input)
overridevirtual

Setups the input record string of receiver.

Parameters
inputDynamic input record to be filled by receiver.

Reimplemented from oofem::FEMComponent.

Definition at line 54 of file constantfunction.C.

References _IFT_ConstantFunction_f, oofem::DynamicInputRecord::setField(), and value.

◆ giveInputRecordName()

const char * oofem::ConstantFunction::giveInputRecordName ( ) const
inlineoverridevirtual
Returns
Input record name of the receiver.

Implements oofem::FEMComponent.

Definition at line 77 of file constantfunction.h.

References _IFT_ConstantFunction_Name.

◆ giveValue()

double oofem::ConstantFunction::giveValue ( )
inline
Returns
Value of receiver.

Definition at line 66 of file constantfunction.h.

References value.

Referenced by evaluate(), and evaluateAtTime().

◆ initializeFrom()

void oofem::ConstantFunction::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
irInput record to initialize from.
priorityPriority of the input record. This is used to determine the order of initialization

Reimplemented from oofem::FEMComponent.

Definition at line 45 of file constantfunction.C.

References _IFT_ConstantFunction_f, IR_GIVE_FIELD, and value.

◆ restoreContext()

void oofem::ConstantFunction::restoreContext ( DataStream & stream,
ContextMode mode )
overridevirtual

Restores the receiver state previously written in stream.

See also
saveContext
Parameters
streamInput stream.
modeDetermines amount of info available in stream (state, definition, ...).
Exceptions
throwsan ContextIOERR exception if error encountered.

Reimplemented from oofem::FEMComponent.

Definition at line 74 of file constantfunction.C.

References oofem::CIO_IOERR, CM_Definition, oofem::DataStream::read(), THROW_CIOERR, and value.

◆ saveContext()

void oofem::ConstantFunction::saveContext ( DataStream & stream,
ContextMode mode )
overridevirtual

Stores receiver state to output stream.

Parameters
streamOutput stream.
modeDetermines amount of info required in stream (state, definition, ...).
Exceptions
throwsan ContextIOERR exception if error encountered.

Reimplemented from oofem::FEMComponent.

Definition at line 61 of file constantfunction.C.

References oofem::CIO_IOERR, CM_Definition, THROW_CIOERR, value, and oofem::DataStream::write().

Member Data Documentation

◆ value

double oofem::ConstantFunction::value
private

Value of receiver.

Definition at line 51 of file constantfunction.h.

Referenced by ConstantFunction(), giveInputRecord(), giveValue(), initializeFrom(), restoreContext(), and saveContext().


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

This page is part of the OOFEM-3.0 documentation. Copyright Copyright (C) 1994-2025 Borek Patzak Bořek Patzák
Project e-mail: oofem@fsv.cvut.cz
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