Defines an event condition for comparing event functions

Inheritance:

Public Methods

	Comparison (const Function& f1, const Function& f2, operation op, double tolerance = 0.0) Constructor
	Comparison (const Comparison& cond, const Function& f, operation op, double tolerance = 0.0) Constructor
virtual Comparison*	Copy () const Copy the event condition
virtual bool	Evaluate (const Argument& arg, bool& val) const Evaluate

Public Members

enum	operation Comparison operations.

Protected Methods

	Comparison () Default constructor
virtual bool	ValueR (const Argument& arg, Value& val) const Right hand side of left hand side

Inherited from Condition:

Public Methods

bool operator() (const Argument& arg, bool& val) const

bool operator() (const Event& event, bool& val) const

static const Condition& True()

static const Condition& False()

Protected Methods

Condition& operator= (const Condition&)

Documentation

A event conditions for comparing event functions.

enum operation

Comparison operations supported by the condition.

opEqual

Always true

opUnequal

Always false

opLess

identity condition

opLessEqual

not condition

opGreater

and condition

opGreaterEqual

or condition

Comparison(const Function& f1, const Function& f2, operation op, double tolerance = 0.0)

Creates an column condition between two columns.

Comparison(const Comparison& cond, const Function& f, operation op, double tolerance = 0.0)

Creates an column condition between a condition and a fucntion. This allows for expression such as "3 < Column ("Amplitude") < 5".

virtual Comparison* Copy() const

Returns a copy of the event condition. This method must be overriden by all descendents.

Returns:

event copy

virtual bool Evaluate(const Argument& arg, bool& val) const

Evaluate the condition.

Parameters:

- arg Event argument list
val - Condition value (return)

Returns:

True if condition could be evaluated

Comparison()

Default constructor.

virtual bool ValueR(const Argument& arg, Value& val) const

Get the right hand side value of the left hand side argument!

Parameters:

- arg Event argument list
x - Right hand side value

Returns:

True if value is defined

This class has no child classes.

Author:

Written June 2001 by Masahiro Ito and Daniel Sigg

Version:

1.0

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