This class implements a piecewise linear function. More...

#include <piecewiselinfunction.h>

Inheritance diagram for oofem::PiecewiseLinFunction:

Collaboration diagram for oofem::PiecewiseLinFunction:

Public Member Functions
	PiecewiseLinFunction (int i, Domain *d)

virtual	~PiecewiseLinFunction ()

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

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

virtual const char *	giveClassName () const

virtual const char *	giveInputRecordName () const

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 double	evaluateAtTime (double t)
	Returns the value of the function at given time. More...

virtual double	evaluateVelocityAtTime (double t)
	Returns the first time derivative of the function at given time. More...

virtual double	evaluateAccelerationAtTime (double t)
	Returns the second time derivative of the function at given time. More...

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

virtual	~Function ()
	Destructor. More...

double	evaluate (TimeStep *tStep, ValueModeType mode)
	Returns the value of load time function at given time. More...

virtual void	evaluate (FloatArray &answer, const std::map< std::string, FunctionArgument > &valDict, GaussPoint *gp=NULL, double param=0.)
	Returns the value of the function for given input. More...

virtual double	evaluate (const std::map< std::string, FunctionArgument > &valDict)
	Returns the (scalar) value of the function for given input. More...

double	giveFunctionParameter (int paramID)

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 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
FloatArray	dates

FloatArray	values

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...

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

int	parameterType

Detailed Description

This class implements a piecewise linear function.

The function is defined by 'numberOfPoints' points. 'dates' and 'values' store respectively the abscissas (t) and the values (f(t)) of the points

Definition at line 55 of file piecewiselinfunction.h.

Constructor & Destructor Documentation

oofem::PiecewiseLinFunction::PiecewiseLinFunction	(	int	i,
		Domain *	d
	)

Definition at line 48 of file piecewiselinfunction.C.

virtual oofem::PiecewiseLinFunction::~PiecewiseLinFunction ( )

inlinevirtual

Definition at line 63 of file piecewiselinfunction.h.

Member Function Documentation

virtual double oofem::PiecewiseLinFunction::evaluateAccelerationAtTime ( double t )

inlinevirtual

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

Parameters

t Time.

Returns: .

Implements oofem::Function.

Reimplemented in oofem::PeriodicPiecewiseLinFunction.

Definition at line 75 of file piecewiselinfunction.h.

double oofem::PiecewiseLinFunction::evaluateAtTime ( double t )

virtual

Returns the value of the function at given time.

Parameters

t Time.

Returns: .

Reimplemented from oofem::Function.

Reimplemented in oofem::PeriodicPiecewiseLinFunction.

Definition at line 51 of file piecewiselinfunction.C.

References oofem::FloatArray::at(), dates, oofem::FloatArray::giveSize(), OOFEM_ERROR, OOFEM_WARNING, PiecewiseLinFunction_PRECISION, and values.

Referenced by oofem::PeriodicPiecewiseLinFunction::evaluateAtTime().

double oofem::PiecewiseLinFunction::evaluateVelocityAtTime ( double t )

virtual

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

Parameters

t Time.

Returns: .

Implements oofem::Function.

Reimplemented in oofem::PeriodicPiecewiseLinFunction.

Definition at line 85 of file piecewiselinfunction.C.

References oofem::FloatArray::at(), dates, oofem::FloatArray::giveSize(), OOFEM_ERROR, PiecewiseLinFunction_PRECISION, and values.

Referenced by oofem::PeriodicPiecewiseLinFunction::evaluateVelocityAtTime().

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

inlinevirtual

Returns: Class name of the receiver.

Implements oofem::FEMComponent.

Reimplemented in oofem::PeriodicPiecewiseLinFunction.

Definition at line 67 of file piecewiselinfunction.h.

void oofem::PiecewiseLinFunction::giveInputRecord ( DynamicInputRecord & input )

virtual

Setups the input record string of receiver.

Parameters

input Dynamic input record to be filled by receiver.

Reimplemented from oofem::FEMComponent.

Reimplemented in oofem::PeriodicPiecewiseLinFunction.

Definition at line 172 of file piecewiselinfunction.C.

References _IFT_PiecewiseLinFunction_ft, _IFT_PiecewiseLinFunction_t, dates, oofem::FEMComponent::giveInputRecord(), oofem::DynamicInputRecord::setField(), and values.

Referenced by oofem::PeriodicPiecewiseLinFunction::giveInputRecord().

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

inlinevirtual

Returns: Input record name of the receiver.

Implements oofem::FEMComponent.

Reimplemented in oofem::PeriodicPiecewiseLinFunction.

Definition at line 68 of file piecewiselinfunction.h.

References _IFT_PiecewiseLinFunction_Name.

IRResultType oofem::PiecewiseLinFunction::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.

See also: IR_GIVE_FIELD; IR_GIVE_OPTIONAL_FIELD

Parameters

ir	Input record to initialize from.

Returns: IRResultType

Reimplemented from oofem::FEMComponent.

Reimplemented in oofem::PeriodicPiecewiseLinFunction.

Definition at line 122 of file piecewiselinfunction.C.

References _IFT_PiecewiseLinFunction_dataFile, _IFT_PiecewiseLinFunction_ft, _IFT_PiecewiseLinFunction_t, oofem::FloatArray::at(), dates, oofem::InputRecord::hasField(), oofem::FEMComponent::initializeFrom(), IR_GIVE_FIELD, IR_GIVE_OPTIONAL_FIELD, OOFEM_ERROR, oofem::Function::parameterType, oofem::FloatArray::resize(), and values.

Referenced by oofem::PeriodicPiecewiseLinFunction::initializeFrom().

contextIOResultType oofem::PiecewiseLinFunction::restoreContext	(	DataStream &	stream,
		ContextMode	mode,
		void *	obj = `NULL`
	)

virtual

Restores the receiver state previously written in stream.

See also: saveContext

Parameters

stream	Input stream.
mode	Determines amount of info available in stream (state, definition, ...).
obj	Special parameter for sending extra information.

Returns: contextIOResultType.

Exceptions

throws an ContextIOERR exception if error encountered.

Reimplemented from oofem::FEMComponent.

Definition at line 194 of file piecewiselinfunction.C.

References oofem::CIO_OK, CM_Definition, dates, oofem::FloatArray::restoreYourself(), and values.

contextIOResultType oofem::PiecewiseLinFunction::saveContext	(	DataStream &	stream,
		ContextMode	mode,
		void *	obj = `NULL`
	)

virtual

Stores receiver state to output stream.

Parameters

stream	Output stream.
mode	Determines amount of info required in stream (state, definition, ...).
obj	Special parameter, used only to send particular integration point to material class version of this method.

Returns: contextIOResultType.

Exceptions

throws an ContextIOERR exception if error encountered.

Reimplemented from oofem::FEMComponent.

Definition at line 182 of file piecewiselinfunction.C.

References oofem::CIO_OK, CM_Definition, dates, oofem::FloatArray::storeYourself(), and values.

Member Data Documentation

FloatArray oofem::PiecewiseLinFunction::dates

protected

Definition at line 58 of file piecewiselinfunction.h.

Referenced by evaluateAtTime(), oofem::PeriodicPiecewiseLinFunction::evaluateAtTime(), evaluateVelocityAtTime(), oofem::PeriodicPiecewiseLinFunction::evaluateVelocityAtTime(), giveInputRecord(), initializeFrom(), restoreContext(), and saveContext().

FloatArray oofem::PiecewiseLinFunction::values

protected

Definition at line 59 of file piecewiselinfunction.h.

Referenced by evaluateAtTime(), evaluateVelocityAtTime(), giveInputRecord(), initializeFrom(), restoreContext(), and saveContext().

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

Public Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation