oofem::ExpressionField Class Reference

#include <expressionfield.h>

Inheritance diagram for oofem::ExpressionField:

Collaboration diagram for oofem::ExpressionField:

Public Member Functions
	ExpressionField (void)
	Constructor.
int	evaluateAt (FloatArray &answer, const FloatArray &coords, ValueModeType mode, TimeStep *tStep) override
int	evaluateAt (FloatArray &answer, DofManager *dman, ValueModeType mode, TimeStep *tStep) override
void	saveContext (DataStream &stream) override
void	restoreContext (DataStream &stream) override
const char *	giveClassName () const override
void	initializeFrom (InputRecord &ir) override
Public Member Functions inherited from oofem::Field
	Field (FieldType b=FieldType::FT_Unknown)
virtual	~Field ()
virtual int	evaluateAt (FloatArray &answer, Element *elem, ValueModeType mode, TimeStep *tStep)
FieldType	giveType ()
	Returns the type of receiver.
void	setType (FieldType b)
	Sets the type of receiver.
void	setSetsNumbers (const IntArray sets)
	Defines a list of sets used to impose a field on specific elements.
virtual bool	hasElementInSets (int nElem, Domain *d)
	Searches if element number exist in IntArray regionSets for given domain.
std::string	errorInfo (const char *func) const
	Returns string for prepending output (used by error reporting macros).

Private Attributes
std::string	expression
	Name of python module containing evaluating function function.

Additional Inherited Members
Protected Attributes inherited from oofem::Field
FieldType	type
IntArray	regionSets

Detailed Description

Custom user supplied expression for field. The expression is evaluated at given point (x,y,z) and time (t).

evaluateAt(FloatArray &answer, const FloatArray &coords, ValueModeType mode, TimeStep *tStep) # returns int 

Definition at line 62 of file expressionfield.h.

Constructor & Destructor Documentation

ExpressionField()

oofem::ExpressionField::ExpressionField

(

void

)

Constructor.

Definition at line 47 of file expressionfield.C.

References oofem::Field::Field().

Member Function Documentation

evaluateAt() [1/2]

int oofem::ExpressionField::evaluateAt ( FloatArray & answer, const FloatArray & coords, ValueModeType mode, TimeStep * tStep )

overridevirtual

Evaluates the field at given point.

Parameters

coords	Coordinates of the point of interest
answer	Field evaluated at coordinate.
tStep	Time step to evaluate for.
mode	Mode of value (total, velocity,...).

Returns

Zero if ok, otherwise nonzero.

Implements oofem::Field.

Definition at line 60 of file expressionfield.C.

References oofem::FloatArray::at(), oofem::Parser::eval(), expression, oofem::TimeStep::giveIntrinsicTime(), oofem::FloatArray::giveSize(), OOFEM_ERROR, and oofem::Parser::setVariableValue().

evaluateAt() [2/2]

int oofem::ExpressionField::evaluateAt ( FloatArray & answer, DofManager * dman, ValueModeType mode, TimeStep * tStep )

overridevirtual

Evaluates the field at given DofManager. This potentially can be resolved quickly, as receiver data may be described using values at dofManagers. Here an additional issue exists: one needs to make sure, that passed dman is from the same domain, so that its number can be used to perform suggested quick evaluation.

If this is not the case (the field is described differently), the response can be evaluated using dofman coordinates in a standard way.

Parameters

[out]	answer	Evaluated field for dman.
	dman	Reference to dofManager.
	mode	Mode of value (total, velocity,...).
	tStep	Time step to evaluate for.

Returns

Zero if ok, nonzero Error code (0-ok, 1-failed)

Implements oofem::Field.

Definition at line 77 of file expressionfield.C.

References OOFEM_ERROR.

giveClassName()

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

inlineoverridevirtual

Returns

Class name of the receiver.

Implements oofem::Field.

Definition at line 82 of file expressionfield.h.

initializeFrom()

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

overridevirtual

Reimplemented from oofem::Field.

Definition at line 51 of file expressionfield.C.

References expression, IR_GIVE_FIELD, and oofem::Field::type.

restoreContext()

void oofem::ExpressionField::restoreContext ( DataStream & stream )

inlineoverridevirtual

Restores the receiver state previously written in stream.

Parameters

stream

Input stream.

Exceptions

Throws

an ContextIOERR exception if error encountered.

Implements oofem::Field.

Definition at line 80 of file expressionfield.h.

saveContext()

void oofem::ExpressionField::saveContext ( DataStream & stream )

inlineoverridevirtual

Stores receiver state to output stream.

Parameters

stream

Output stream.

Exceptions

Throws

an ContextIOERR exception if error encountered.

Implements oofem::Field.

Definition at line 79 of file expressionfield.h.

Member Data Documentation

expression

std::string oofem::ExpressionField::expression

private

Name of python module containing evaluating function function.

Definition at line 66 of file expressionfield.h.

Referenced by evaluateAt(), and initializeFrom().

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

• expressionfield.h
• expressionfield.C