Open CASCADE Technology 7.8.2.dev
IGESSelect_SplineToBSpline Class Reference

This type of Transformer allows to convert Spline Curves (IGES type 112) and Surfaces (IGES Type 126) to BSpline Curves (IGES type 114) and Surfac (IGES Type 128). All other entities are rebuilt as identical but on the basis of this conversion. More...

#include <IGESSelect_SplineToBSpline.hxx>

Inheritance diagram for IGESSelect_SplineToBSpline:

Public Member Functions

 IGESSelect_SplineToBSpline (const Standard_Boolean tryC2)
 Creates a Transformer SplineToBSpline. If <tryC2> is True, it will in addition try to upgrade continuity up to C2.
 
Standard_Boolean OptionTryC2 () const
 Returns the option TryC2 given at creation time.
 
Standard_Boolean Perform (const Interface_Graph &G, const Handle< Interface_Protocol > &protocol, Interface_CheckIterator &checks, Handle< Interface_InterfaceModel > &newmod) override
 Performs the transformation, if there is at least one Spline Curve (112) or Surface (126). Does nothing if there is none.
 
Standard_Boolean Updated (const Handle< Standard_Transient > &entfrom, Handle< Standard_Transient > &entto) const override
 Returns the transformed entities. If original data contained no Spline Curve or Surface, the result is identity : <entto> = <entfrom> Else, the copied counterpart is returned : for a Spline Curve or Surface, it is a converted BSpline Curve or Surface. Else, it is the result of general service Copy (rebuilt as necessary by BSPlines replacing Splines).
 
TCollection_AsciiString Label () const override
 Returns a text which defines the way a Transformer works : "Conversion Spline to BSpline" and as opted, " trying to upgrade continuity".
 
- Public Member Functions inherited from IFSelect_Transformer
virtual Standard_Boolean ChangeProtocol (Handle< Interface_Protocol > &newproto) const
 This methods allows to declare that the Protocol applied to the new Model has changed. It applies to the last call to Perform.
 
- Public Member Functions inherited from Standard_Transient
 Standard_Transient ()
 Empty constructor.
 
 Standard_Transient (const Standard_Transient &)
 Copy constructor – does nothing.
 
Standard_Transientoperator= (const Standard_Transient &)
 Assignment operator, needed to avoid copying reference counter.
 
virtual ~Standard_Transient ()
 Destructor must be virtual.
 
virtual const opencascade::handle< Standard_Type > & DynamicType () const
 Returns a type descriptor about this object.
 
Standard_Boolean IsInstance (const opencascade::handle< Standard_Type > &theType) const
 Returns a true value if this is an instance of Type.
 
Standard_Boolean IsInstance (const Standard_CString theTypeName) const
 Returns a true value if this is an instance of TypeName.
 
Standard_Boolean IsKind (const opencascade::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.
 
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.
 
Standard_TransientThis () const
 Returns non-const pointer to this object (like const_cast). For protection against creating handle to objects allocated in stack or call from constructor, it will raise exception Standard_ProgramError if reference counter is zero.
 
Standard_Integer GetRefCount () const noexcept
 Get the reference counter of this object.
 
void IncrementRefCounter () noexcept
 Increments the reference counter of this object.
 
Standard_Integer DecrementRefCounter () noexcept
 Decrements the reference counter of this object; returns the decremented value.
 
virtual void Delete () const
 Memory deallocator for transient classes.
 

Additional Inherited Members

- Public Types inherited from Standard_Transient
typedef void base_type
 Returns a type descriptor about this object.
 
- Static Public Member Functions inherited from Standard_Transient
static constexpr const char * get_type_name ()
 Returns a type descriptor about this object.
 
static const opencascade::handle< Standard_Type > & get_type_descriptor ()
 Returns type descriptor of Standard_Transient class.
 

Detailed Description

This type of Transformer allows to convert Spline Curves (IGES type 112) and Surfaces (IGES Type 126) to BSpline Curves (IGES type 114) and Surfac (IGES Type 128). All other entities are rebuilt as identical but on the basis of this conversion.

It also gives an option to, either convert as such (i.e. each starting part of the spline becomes a segment of the bspline, with continuity C0 between segments), or try to increase continuity as far as possible to C1 or to C2.

It does nothing if the starting model contains no Spline Curve (IGES Type 112) or Surface (IGES Type 126). Else, converting and rebuilding implies copying of entities.

Constructor & Destructor Documentation

◆ IGESSelect_SplineToBSpline()

IGESSelect_SplineToBSpline::IGESSelect_SplineToBSpline ( const Standard_Boolean tryC2)

Creates a Transformer SplineToBSpline. If <tryC2> is True, it will in addition try to upgrade continuity up to C2.

Member Function Documentation

◆ Label()

TCollection_AsciiString IGESSelect_SplineToBSpline::Label ( ) const
overridevirtual

Returns a text which defines the way a Transformer works : "Conversion Spline to BSpline" and as opted, " trying to upgrade continuity".

Implements IFSelect_Transformer.

◆ OptionTryC2()

Standard_Boolean IGESSelect_SplineToBSpline::OptionTryC2 ( ) const

Returns the option TryC2 given at creation time.

◆ Perform()

Standard_Boolean IGESSelect_SplineToBSpline::Perform ( const Interface_Graph & G,
const Handle< Interface_Protocol > & protocol,
Interface_CheckIterator & checks,
Handle< Interface_InterfaceModel > & newmod )
overridevirtual

Performs the transformation, if there is at least one Spline Curve (112) or Surface (126). Does nothing if there is none.

Implements IFSelect_Transformer.

◆ Updated()

Standard_Boolean IGESSelect_SplineToBSpline::Updated ( const Handle< Standard_Transient > & entfrom,
Handle< Standard_Transient > & entto ) const
overridevirtual

Returns the transformed entities. If original data contained no Spline Curve or Surface, the result is identity : <entto> = <entfrom> Else, the copied counterpart is returned : for a Spline Curve or Surface, it is a converted BSpline Curve or Surface. Else, it is the result of general service Copy (rebuilt as necessary by BSPlines replacing Splines).

Implements IFSelect_Transformer.


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