Open CASCADE Technology  6.9.0
Public Member Functions

Expr_NumericValue Class Reference

This class describes any reel value defined in an expression. More...

#include <Expr_NumericValue.hxx>

Inheritance diagram for Expr_NumericValue:
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Public Member Functions

 Expr_NumericValue (const Standard_Real val)
 
Standard_Real GetValue () const
 
void SetValue (const Standard_Real val)
 
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...
 
Handle< Expr_GeneralExpressionSimplified () const
 Returns a GeneralExpression after replacement of NamedUnknowns by an associated expression and after values computation. More...
 
Handle< Expr_GeneralExpressionShallowSimplified () const
 Returns a GeneralExpression after a simplification of the arguments of <me>. More...
 
Handle< Expr_GeneralExpressionCopy () const
 Returns a copy of <me> having the same unknowns and functions. More...
 
Standard_Boolean ContainsUnknowns () const
 Tests if <me> contains NamedUnknown. More...
 
Standard_Boolean Contains (const Handle< Expr_GeneralExpression > &exp) const
 Tests if <exp> is contained in <me>. 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_GeneralExpressionDerivative (const Handle< Expr_NamedUnknown > &X) const
 Returns the derivative on <X> unknown of <me> 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>. Raises OutOfRange if <N> <= 0. More...
 
void Replace (const Handle< Expr_NamedUnknown > &var, const Handle< Expr_GeneralExpression > &with)
 Replaces all occurences of with <with> in <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>. More...
 
TCollection_AsciiString String () const
 returns a string representing <me> in a readable way. 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...
 
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_Transientoperator= (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...
 

Detailed Description

This class describes any reel value defined in an expression.

Constructor & Destructor Documentation

Expr_NumericValue::Expr_NumericValue ( const Standard_Real  val)

Member Function Documentation

Standard_Boolean Expr_NumericValue::Contains ( const Handle< Expr_GeneralExpression > &  exp) const
virtual

Tests if <exp> is contained in <me>.

Implements Expr_GeneralExpression.

Standard_Boolean Expr_NumericValue::ContainsUnknowns ( ) const
virtual

Tests if <me> contains NamedUnknown.

Implements Expr_GeneralExpression.

Handle< Expr_GeneralExpression > Expr_NumericValue::Copy ( ) const
virtual

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

Implements Expr_GeneralExpression.

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

Returns the derivative on <X> unknown of <me>

Implements Expr_GeneralExpression.

Standard_Real Expr_NumericValue::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>.

Implements Expr_GeneralExpression.

Standard_Real Expr_NumericValue::GetValue ( ) const
Standard_Boolean Expr_NumericValue::IsIdentical ( const Handle< Expr_GeneralExpression > &  Other) const
virtual

Tests if <me> and <Other> define the same expression. This method does not include any simplification before testing.

Implements Expr_GeneralExpression.

Standard_Boolean Expr_NumericValue::IsLinear ( ) const
virtual

Tests if <me> is linear on every NamedUnknown it contains.

Implements Expr_GeneralExpression.

Standard_Integer Expr_NumericValue::NbSubExpressions ( ) const
virtual

Returns the number of sub-expressions contained in <me> ( >= 0)

Implements Expr_GeneralExpression.

virtual Handle< Expr_GeneralExpression > Expr_NumericValue::NDerivative ( const Handle< Expr_NamedUnknown > &  X,
const Standard_Integer  N 
) const
virtual

Returns the <N>-th derivative on <X> unknown of <me>. Raises OutOfRange if <N> <= 0.

Reimplemented from Expr_GeneralExpression.

void Expr_NumericValue::Replace ( const Handle< Expr_NamedUnknown > &  var,
const Handle< Expr_GeneralExpression > &  with 
)
virtual

Replaces all occurences of with <with> in <me>

Implements Expr_GeneralExpression.

void Expr_NumericValue::SetValue ( const Standard_Real  val)
Handle< Expr_GeneralExpression > Expr_NumericValue::ShallowSimplified ( ) const
virtual

Returns a GeneralExpression after a simplification of the arguments of <me>.

Implements Expr_GeneralExpression.

Handle< Expr_GeneralExpression > Expr_NumericValue::Simplified ( ) const
virtual

Returns a GeneralExpression after replacement of NamedUnknowns by an associated expression and after values computation.

Implements Expr_GeneralExpression.

TCollection_AsciiString Expr_NumericValue::String ( ) const
virtual

returns a string representing <me> in a readable way.

Implements Expr_GeneralExpression.

const Handle< Expr_GeneralExpression >& Expr_NumericValue::SubExpression ( const Standard_Integer  I) const
virtual

Returns the -th sub-expression of <me> raises OutOfRange if > NbSubExpressions(me)

Implements Expr_GeneralExpression.


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