Defines the use of an unary function in an expression with a given argument. More...

#include <Expr_UnaryFunction.hxx>

Inheritance diagram for Expr_UnaryFunction:

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Public Member Functions
	Expr_UnaryFunction (const Handle< Expr_GeneralFunction > &func, const Handle< Expr_GeneralExpression > &exp)
	Creates me as <func>(<exp>). Raises exception if <func> is not unary. More...

Handle< Expr_GeneralFunction >	Function () const
	Returns the function defining <me>. More...

Handle< Expr_GeneralExpression >	ShallowSimplified () const
	Returns a GeneralExpression after a simplification of the arguments of <me>. More...

Handle< Expr_GeneralExpression >	Copy () const
	Returns a copy of <me> having the same unknowns and functions. More...

Standard_Boolean	IsIdentical (const Handle< Expr_GeneralExpression > &Other) const
	Tests if <me> and <Other> define the same expression. This method does not include any simplification before testing. More...

Standard_Boolean	IsLinear () const
	Tests if <me> is linear on every NamedUnknown it contains. More...

Handle< Expr_GeneralExpression >	Derivative (const Handle< Expr_NamedUnknown > &X) const
	returns the derivative on <X> unknown of <me>. More...

Standard_Real	Evaluate (const Expr_Array1OfNamedUnknown &vars, const TColStd_Array1OfReal &vals) const
	Returns the value of <me> (as a Real) by replacement of <vars> by <vals>. Raises NotEvaluable if <me> contains NamedUnknown not in <vars> or NumericError if result cannot be computed. More...

TCollection_AsciiString	String () const
	returns a string representing <me> in a readable way. More...

Public Member Functions inherited from Expr_UnaryExpression
const Handle< Expr_GeneralExpression > &	Operand () const
	Returns the operand used. More...

void	SetOperand (const Handle< Expr_GeneralExpression > &exp)
	Sets the operand used Raises InvalidOperand if <exp> contains <me>. More...

Standard_Integer	NbSubExpressions () const
	Returns the number of sub-expressions contained in <me> ( >= 0) More...

const Handle< Expr_GeneralExpression > &	SubExpression (const Standard_Integer I) const
	Returns the -th sub-expression of <me>. Raises OutOfRange if > NbSubExpressions(me) More...

Standard_Boolean	ContainsUnknowns () const
	Does <me> contains NamedUnknown ? More...

Standard_Boolean	Contains (const Handle< Expr_GeneralExpression > &exp) const
	Tests if <exp> is contained in <me>. More...

void	Replace (const Handle< Expr_NamedUnknown > &var, const Handle< Expr_GeneralExpression > &with)
	Replaces all occurences of with <with> in <me> Raises InvalidOperand if <with> contains <me>. More...

Handle< Expr_GeneralExpression >	Simplified () const
	Returns a GeneralExpression after replacement of NamedUnknowns by an associated expression, and after values computation. More...

Public Member Functions inherited from Expr_GeneralExpression
virtual Standard_Boolean	IsShareable () const
	Tests if <me> can be shared by one or more expressions or must be copied. This method returns False as a default value. To be redefined ( especially for NamedUnknown). More...

virtual Handle< Expr_GeneralExpression >	NDerivative (const Handle< Expr_NamedUnknown > &X, const Standard_Integer N) const
	Returns the <N>-th derivative on <X> unknown of <me>. Raise OutOfRange if N <= 0. More...

Standard_Real	EvaluateNumeric () const
	Returns the value of <me> (as a Real) by replacement of <vars> by <vals>. Raises NotEvaluable if <me> contains NamedUnknown not in <vars> or NumericError if result cannot be computed. More...

Public Member Functions inherited from MMgt_TShared
virtual void	Delete () const
	Memory deallocator for transient classes. More...

Public Member Functions inherited from Standard_Transient
	Standard_Transient ()
	Empty constructor. More...

	Standard_Transient (const Standard_Transient &)
	Copy constructor – does nothing. More...

Standard_Transient &	operator= (const Standard_Transient &)
	Assignment operator, needed to avoid copying reference counter. More...

virtual	~Standard_Transient ()
	Destructor must be virtual. More...

virtual const Handle_Standard_Type &	DynamicType () const
	Returns a type information object about this object. More...

Standard_Boolean	IsInstance (const Handle_Standard_Type &theType) const
	Returns a true value if this is an instance of Type. More...

Standard_Boolean	IsInstance (const Standard_CString theTypeName) const
	Returns a true value if this is an instance of TypeName. More...

Standard_Boolean	IsKind (const Handle_Standard_Type &theType) const
	Returns true if this is an instance of Type or an instance of any class that inherits from Type. Note that multiple inheritance is not supported by OCCT RTTI mechanism. More...

Standard_Boolean	IsKind (const Standard_CString theTypeName) const
	Returns true if this is an instance of TypeName or an instance of any class that inherits from TypeName. Note that multiple inheritance is not supported by OCCT RTTI mechanism. More...

virtual Handle_Standard_Transient	This () const
	Returns a Handle which references this object. Must never be called to objects created in stack. More...

Standard_Integer	GetRefCount () const
	Get the reference counter of this object. More...

Additional Inherited Members
Protected Member Functions inherited from Expr_UnaryExpression
void	CreateOperand (const Handle< Expr_GeneralExpression > &exp)
	Sets the operand used during creation. More...

Detailed Description

Defines the use of an unary function in an expression with a given argument.

Constructor & Destructor Documentation

Expr_UnaryFunction::Expr_UnaryFunction	(	const Handle< Expr_GeneralFunction > &	func,
		const Handle< Expr_GeneralExpression > &	exp
	)

Creates me as <func>(<exp>). Raises exception if <func> is not unary.

Member Function Documentation

Handle< Expr_GeneralExpression > Expr_UnaryFunction::Copy ( ) const

virtual

Returns a copy of <me> having the same unknowns and functions.

Implements Expr_GeneralExpression.

Handle< Expr_GeneralExpression > Expr_UnaryFunction::Derivative ( const Handle< Expr_NamedUnknown > & X ) const

virtual

returns the derivative on <X> unknown of <me>.

Implements Expr_GeneralExpression.

Standard_Real Expr_UnaryFunction::Evaluate	(	const Expr_Array1OfNamedUnknown &	vars,
		const TColStd_Array1OfReal &	vals
	)		const

virtual

Returns the value of <me> (as a Real) by replacement of <vars> by <vals>. Raises NotEvaluable if <me> contains NamedUnknown not in <vars> or NumericError if result cannot be computed.

Implements Expr_GeneralExpression.

Handle< Expr_GeneralFunction > Expr_UnaryFunction::Function ( ) const

Returns the function defining <me>.

Standard_Boolean Expr_UnaryFunction::IsIdentical ( const Handle< Expr_GeneralExpression > & Other ) const