OOFEM  2.4
OOFEM.org - Object Oriented Finite Element Solver
oofem::PeakFunction Class Reference

This class implements a function that is 0 everywhere, except in a single point. More...

#include <peakfunction.h>

+ Inheritance diagram for oofem::PeakFunction:
+ Collaboration diagram for oofem::PeakFunction:

Public Member Functions

 PeakFunction (int i, Domain *d)
 
virtual ~PeakFunction ()
 
virtual IRResultType initializeFrom (InputRecord *ir)
 Initializes receiver according to object description stored in input record. More...
 
virtual const char * giveClassName () const
 
virtual const char * giveInputRecordName () const
 
virtual double evaluateAtTime (double)
 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...
 
DomaingiveDomain () 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 InterfacegiveInterface (InterfaceType t)
 Interface requesting service. More...
 
std::string errorInfo (const char *func) const
 Returns string for prepending output (used by error reporting macros). More...
 

Private Attributes

double t
 Specific time when function is nonzero. More...
 
double value
 Value of function at nonzero time. More...
 

Additional Inherited Members

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

Detailed Description

This class implements a function that is 0 everywhere, except in a single point.

Definition at line 52 of file peakfunction.h.

Constructor & Destructor Documentation

oofem::PeakFunction::PeakFunction ( int  i,
Domain d 
)
inline

Definition at line 61 of file peakfunction.h.

virtual oofem::PeakFunction::~PeakFunction ( )
inlinevirtual

Definition at line 66 of file peakfunction.h.

Member Function Documentation

virtual double oofem::PeakFunction::evaluateAccelerationAtTime ( double  t)
inlinevirtual

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

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

Implements oofem::Function.

Definition at line 74 of file peakfunction.h.

double oofem::PeakFunction::evaluateAtTime ( double  t)
virtual

Returns the value of the function at given time.

Parameters
tTime.
Returns
$ f(t) $.

Reimplemented from oofem::Function.

Definition at line 43 of file peakfunction.C.

References t, and value.

virtual double oofem::PeakFunction::evaluateVelocityAtTime ( double  t)
inlinevirtual

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

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

Implements oofem::Function.

Definition at line 73 of file peakfunction.h.

virtual const char* oofem::PeakFunction::giveClassName ( ) const
inlinevirtual
Returns
Class name of the receiver.

Implements oofem::FEMComponent.

Definition at line 69 of file peakfunction.h.

virtual const char* oofem::PeakFunction::giveInputRecordName ( ) const
inlinevirtual
Returns
Input record name of the receiver.

Implements oofem::FEMComponent.

Definition at line 70 of file peakfunction.h.

References _IFT_PeakFunction_Name.

IRResultType oofem::PeakFunction::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
irInput record to initialize from.
Returns
IRResultType

Reimplemented from oofem::FEMComponent.

Definition at line 56 of file peakfunction.C.

References _IFT_PeakFunction_ft, _IFT_PeakFunction_t, oofem::FEMComponent::initializeFrom(), IR_GIVE_FIELD, t, and value.

Member Data Documentation

double oofem::PeakFunction::t
private

Specific time when function is nonzero.

Definition at line 56 of file peakfunction.h.

Referenced by evaluateAtTime(), and initializeFrom().

double oofem::PeakFunction::value
private

Value of function at nonzero time.

Definition at line 58 of file peakfunction.h.

Referenced by evaluateAtTime(), and initializeFrom().


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

This page is part of the OOFEM documentation. Copyright (c) 2011 Borek Patzak
Project e-mail: info@oofem.org
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