PlotUnaryOperatorT< Operator > Class Template Reference

A template unary operator, using a functional object to evaluate the expression. More...

#include <plotunaryoperator.h>

Inheritance diagram for PlotUnaryOperatorT< Operator >:

Public Member Functions
	PlotUnaryOperatorT ()
	Default constructor: operand is null.
	PlotUnaryOperatorT (PlotExpression *operand)
	Constructor. More...
virtual double	sample (double sampleTime) const
	Sample the operand and evaluate the Operator. More...
const QString &	opStr () const
	Return the string used to prefix the operand. More...
void	setOpStr (const QString &str)
	Sets the string used to prefix the operand. More...
virtual PlotExpression *	clone () const
	Deep clone.
Public Member Functions inherited from PlotUnaryOperator
	PlotUnaryOperator (PlotExpression *operand)
	Create a binary operator on the given left and right expressions. More...
	~PlotUnaryOperator ()
	Destructor, destroying the child.
void	setOperand (PlotExpression *operand)
	Set the operand expression. More...
const PlotExpression *	operand () const
	Get the operand expression. More...
virtual BindResult	bind (const QList< PlotInstance * > &curves, PlotBindingTracker &bindTracker, PlotExpressionBindDomain &domain, bool repeatLastBinding=false)
	Binds the operand expression.
virtual void	unbind ()
	Unbind the operand.
bool	explicitTime () const override
	Is the generated expression sensitive to changes in the time domain? More...
Public Member Functions inherited from PlotExpression
	PlotExpression ()
	Empty constructor.
virtual	~PlotExpression ()
	Empty, virtual destructor.
QString	toString () const
	Converts the PlotExpression into a parseable string form. More...

Detailed Description

template<class Operator>
class PlotUnaryOperatorT< Operator >

A template unary operator, using a functional object to evaluate the expression.

This class extends the PlotUnaryOperator to create a concrete derivation which uses Operator evaluate the expression. The Operator type must be an object supporting the bracket operator accepting one double argument and returning a double. The operator performs the expression calculations. For example, std::negate<double>.

As a convenience, the object supports a opStr(), which is used when toString() is called. Essentially, the complete string is formed by: opStr() + operand()->toString().

Template Parameters

Operator

The functional object used to evaluate the expression.

Constructor & Destructor Documentation

template<class Operator>

PlotUnaryOperatorT< Operator >::PlotUnaryOperatorT ( PlotExpression *  operand )

inline

Constructor.

Parameters

operand

Operand expression.

Member Function Documentation

template<class Operator>

const QString& PlotUnaryOperatorT< Operator >::opStr ( ) const

inline

Return the string used to prefix the operand.

Returns

The operation string (e.g., "-" for negation).

template<class Operator>

virtual double PlotUnaryOperatorT< Operator >::sample ( double  sampleTime ) const

inlinevirtual

Sample the operand and evaluate the Operator.

Evaluates operand at sampleTime, and passes the result to Operator for evaluation.

Parameters

sampleTime

The time to sample at.

Returns

The operand samples filtered through Operator.

Implements PlotExpression.

template<class Operator>

void PlotUnaryOperatorT< Operator >::setOpStr ( const QString &  str )

inline

Sets the string used to prefix the operand.

Parameters

str	The operation string.

Referenced by PlotUnaryOperatorT< std::negate< double > >::clone().

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

• plotunaryoperator.h