To define section law in sweeping. More...

#include <GeomFill_SectionLaw.hxx>

Inheritance diagram for GeomFill_SectionLaw:

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Public Member Functions
virtual bool	D0 (const double Param, NCollection_Array1< gp_Pnt > &Poles, NCollection_Array1< double > &Weigths)=0
	compute the section for v = param

virtual bool	D1 (const double Param, NCollection_Array1< gp_Pnt > &Poles, NCollection_Array1< gp_Vec > &DPoles, NCollection_Array1< double > &Weigths, NCollection_Array1< double > &DWeigths)
	compute the first derivative in v direction of the section for v = param Warning : It used only for C1 or C2 approximation

virtual bool	D2 (const double Param, NCollection_Array1< gp_Pnt > &Poles, NCollection_Array1< gp_Vec > &DPoles, NCollection_Array1< gp_Vec > &D2Poles, NCollection_Array1< double > &Weigths, NCollection_Array1< double > &DWeigths, NCollection_Array1< double > &D2Weigths)
	compute the second derivative in v direction of the section for v = param Warning : It used only for C2 approximation

virtual occ::handle< Geom_BSplineSurface >	BSplineSurface () const
	give if possible an bspline Surface, like iso-v are the section. If it is not possible this method have to get an Null Surface. It is the default implementation.

virtual void	SectionShape (int &NbPoles, int &NbKnots, int &Degree) const =0
	get the format of an section

virtual void	Knots (NCollection_Array1< double > &TKnots) const =0
	get the Knots of the section

virtual void	Mults (NCollection_Array1< int > &TMults) const =0
	get the Multplicities of the section

virtual bool	IsRational () const =0
	Returns if the sections are rational or not.

virtual bool	IsUPeriodic () const =0
	Returns if the sections are periodic or not.

virtual bool	IsVPeriodic () const =0
	Returns if law is periodic or not.

virtual int	NbIntervals (const GeomAbs_Shape S) const =0
	Returns the number of intervals for continuity ~~. May be one if Continuity(me) >=~~

virtual void	Intervals (NCollection_Array1< double > &T, const GeomAbs_Shape S) const =0
	Stores in <T> the parameters bounding the intervals of continuity .

virtual void	SetInterval (const double First, const double Last)=0
	Sets the bounds of the parametric interval on the function This determines the derivatives in these values if the function is not Cn.

virtual void	GetInterval (double &First, double &Last) const =0
	Gets the bounds of the parametric interval on the function.

virtual void	GetDomain (double &First, double &Last) const =0
	Gets the bounds of the function parametric domain. Warning: This domain it is not modified by the SetValue method.

virtual void	GetTolerance (const double BoundTol, const double SurfTol, const double AngleTol, NCollection_Array1< double > &Tol3d) const =0
	Returns the tolerances associated at each poles to reach in approximation, to satisfy: BoundTol error at the Boundary AngleTol tangent error at the Boundary (in radian) SurfTol error inside the surface.

virtual void	SetTolerance (const double Tol3d, const double Tol2d)
	Is useful, if <me> has to run numerical algorithm to perform D0, D1 or D2 The default implementation make nothing.

virtual gp_Pnt	BarycentreOfSurf () const
	Get the barycentre of Surface. A very poor estimation is sufficient. This information is useful to perform well conditioned rational approximation. Warning: Used only if <me> IsRational.

virtual double	MaximalSection () const =0
	Returns the length of the greater section. This information is useful to G1's control. Warning: With an little value, approximation can be slower.

virtual void	GetMinimalWeight (NCollection_Array1< double > &Weigths) const
	Compute the minimal value of weight for each poles in all sections. This information is useful to control error in rational approximation. Warning: Used only if <me> IsRational.

virtual bool	IsConstant (double &Error) const
	Say if all sections are equals.

virtual occ::handle< Geom_Curve >	ConstantSection () const
	Return a copy of the constant Section, if <me> IsConstant.

virtual bool	IsConicalLaw (double &Error) const
	Returns True if all section are circle, with same plane,same center and linear radius evolution Return False by Default.

virtual occ::handle< Geom_Curve >	CirclSection (const double Param) const
	Return the circle section at parameter , if <me> a IsConicalLaw.

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

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

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

virtual	~Standard_Transient ()=default
	Destructor must be virtual.

virtual const opencascade::handle< Standard_Type > &	DynamicType () const
	Returns a type descriptor about this object.

bool	IsInstance (const opencascade::handle< Standard_Type > &theType) const
	Returns a true value if this is an instance of Type.

bool	IsInstance (const char *const theTypeName) const
	Returns a true value if this is an instance of TypeName.

bool	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.

bool	IsKind (const char *const 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_Transient *	This () 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.

int	GetRefCount () const noexcept
	Get the reference counter of this object.

void	IncrementRefCounter () noexcept
	Increments the reference counter of this object. Uses relaxed memory ordering since incrementing only requires atomicity, not synchronization with other memory operations.

int	DecrementRefCounter () noexcept
	Decrements the reference counter of this object; returns the decremented value. Uses release ordering for the decrement to ensure all writes to the object are visible before the count reaches zero. An acquire fence is added only when the count reaches zero, ensuring proper synchronization before deletion. This is more efficient than using acq_rel for every decrement.

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

To define section law in sweeping.

Member Function Documentation

◆ BarycentreOfSurf()

virtual gp_Pnt GeomFill_SectionLaw::BarycentreOfSurf ( ) const

virtual

Get the barycentre of Surface. A very poor estimation is sufficient. This information is useful to perform well conditioned rational approximation. Warning: Used only if <me> IsRational.

Reimplemented in GeomFill_EvolvedSection, GeomFill_NSections, and GeomFill_UniformSection.

◆ BSplineSurface()

virtual occ::handle< Geom_BSplineSurface > GeomFill_SectionLaw::BSplineSurface ( ) const

virtual

give if possible an bspline Surface, like iso-v are the section. If it is not possible this method have to get an Null Surface. It is the default implementation.

Reimplemented in GeomFill_EvolvedSection, GeomFill_NSections, and GeomFill_UniformSection.

◆ CirclSection()

virtual occ::handle< Geom_Curve > GeomFill_SectionLaw::CirclSection ( const double Param ) const

virtual

Return the circle section at parameter , if <me> a IsConicalLaw.

Reimplemented in GeomFill_NSections.

◆ ConstantSection()

virtual occ::handle< Geom_Curve > GeomFill_SectionLaw::ConstantSection ( ) const

virtual

Return a copy of the constant Section, if <me> IsConstant.

Reimplemented in GeomFill_EvolvedSection, GeomFill_NSections, and GeomFill_UniformSection.

◆ D0()

virtual bool GeomFill_SectionLaw::D0	(	const double	Param,
		NCollection_Array1< gp_Pnt > &	Poles,
		NCollection_Array1< double > &	Weigths )

pure virtual

compute the section for v = param

Implemented in GeomFill_EvolvedSection, GeomFill_NSections, and GeomFill_UniformSection.

◆ D1()

virtual bool GeomFill_SectionLaw::D1	(	const double	Param,
		NCollection_Array1< gp_Pnt > &	Poles,
		NCollection_Array1< gp_Vec > &	DPoles,
		NCollection_Array1< double > &	Weigths,
		NCollection_Array1< double > &	DWeigths )

virtual

compute the first derivative in v direction of the section for v = param Warning : It used only for C1 or C2 approximation

Reimplemented in GeomFill_EvolvedSection, GeomFill_NSections, and GeomFill_UniformSection.

◆ D2()

virtual bool GeomFill_SectionLaw::D2	(	const double	Param,
		NCollection_Array1< gp_Pnt > &	Poles,
		NCollection_Array1< gp_Vec > &	DPoles,
		NCollection_Array1< gp_Vec > &	D2Poles,
		NCollection_Array1< double > &	Weigths,
		NCollection_Array1< double > &	DWeigths,
		NCollection_Array1< double > &	D2Weigths )

virtual

compute the second derivative in v direction of the section for v = param Warning : It used only for C2 approximation

Reimplemented in GeomFill_EvolvedSection, GeomFill_NSections, and GeomFill_UniformSection.

◆ GetDomain()

virtual void GeomFill_SectionLaw::GetDomain	(	double &	First,
		double &	Last ) const

pure virtual

Gets the bounds of the function parametric domain. Warning: This domain it is not modified by the SetValue method.

Implemented in GeomFill_EvolvedSection, GeomFill_NSections, and GeomFill_UniformSection.

◆ GetInterval()

virtual void GeomFill_SectionLaw::GetInterval	(	double &	First,
		double &	Last ) const

pure virtual

Gets the bounds of the parametric interval on the function.

Implemented in GeomFill_EvolvedSection, GeomFill_NSections, and GeomFill_UniformSection.

◆ GetMinimalWeight()

virtual void GeomFill_SectionLaw::GetMinimalWeight ( NCollection_Array1< double > & Weigths ) const

virtual

Compute the minimal value of weight for each poles in all sections. This information is useful to control error in rational approximation. Warning: Used only if <me> IsRational.

Reimplemented in GeomFill_EvolvedSection, GeomFill_NSections, and GeomFill_UniformSection.

◆ GetTolerance()

virtual void GeomFill_SectionLaw::GetTolerance	(	const double	BoundTol,
		const double	SurfTol,
		const double	AngleTol,
		NCollection_Array1< double > &	Tol3d ) const

pure virtual

Returns the tolerances associated at each poles to reach in approximation, to satisfy: BoundTol error at the Boundary AngleTol tangent error at the Boundary (in radian) SurfTol error inside the surface.

Implemented in GeomFill_EvolvedSection, GeomFill_NSections, and GeomFill_UniformSection.

◆ Intervals()

virtual void GeomFill_SectionLaw::Intervals	(	NCollection_Array1< double > &	T,
		const GeomAbs_Shape	S ) const

pure virtual

Stores in <T> the parameters bounding the intervals of continuity .

The array must provide enough room to accommodate for the parameters. i.e. T.Length() > NbIntervals()

Implemented in GeomFill_EvolvedSection, GeomFill_NSections, and GeomFill_UniformSection.

◆ IsConicalLaw()

virtual bool GeomFill_SectionLaw::IsConicalLaw ( double & Error ) const

virtual

Returns True if all section are circle, with same plane,same center and linear radius evolution Return False by Default.

Reimplemented in GeomFill_NSections.

◆ IsConstant()

virtual bool GeomFill_SectionLaw::IsConstant ( double & Error ) const

virtual

Say if all sections are equals.

Reimplemented in GeomFill_EvolvedSection, GeomFill_NSections, and GeomFill_UniformSection.

◆ IsRational()

virtual bool GeomFill_SectionLaw::IsRational ( ) const

pure virtual

Returns if the sections are rational or not.

Implemented in GeomFill_EvolvedSection, GeomFill_NSections, and GeomFill_UniformSection.

◆ IsUPeriodic()

virtual bool GeomFill_SectionLaw::IsUPeriodic ( ) const

pure virtual

Returns if the sections are periodic or not.

Implemented in GeomFill_EvolvedSection, GeomFill_NSections, and GeomFill_UniformSection.

◆ IsVPeriodic()

virtual bool GeomFill_SectionLaw::IsVPeriodic ( ) const

pure virtual

Returns if law is periodic or not.

Implemented in GeomFill_EvolvedSection, GeomFill_NSections, and GeomFill_UniformSection.

◆ Knots()

virtual void GeomFill_SectionLaw::Knots ( NCollection_Array1< double > & TKnots ) const

pure virtual

get the Knots of the section

Implemented in GeomFill_EvolvedSection, GeomFill_NSections, and GeomFill_UniformSection.

◆ MaximalSection()

virtual double GeomFill_SectionLaw::MaximalSection ( ) const

pure virtual

Returns the length of the greater section. This information is useful to G1's control. Warning: With an little value, approximation can be slower.

Implemented in GeomFill_EvolvedSection, GeomFill_NSections, and GeomFill_UniformSection.

◆ Mults()

virtual void GeomFill_SectionLaw::Mults ( NCollection_Array1< int > & TMults ) const

pure virtual

get the Multplicities of the section

Implemented in GeomFill_EvolvedSection, GeomFill_NSections, and GeomFill_UniformSection.

◆ NbIntervals()

virtual int GeomFill_SectionLaw::NbIntervals ( const GeomAbs_Shape S ) const

pure virtual

Returns the number of intervals for continuity ~~. May be one if Continuity(me) >=~~

Implemented in GeomFill_EvolvedSection, GeomFill_NSections, and GeomFill_UniformSection.

◆ SectionShape()

virtual void GeomFill_SectionLaw::SectionShape	(	int &	NbPoles,
		int &	NbKnots,
		int &	Degree ) const

pure virtual

get the format of an section

Implemented in GeomFill_EvolvedSection, GeomFill_NSections, and GeomFill_UniformSection.

◆ SetInterval()

virtual void GeomFill_SectionLaw::SetInterval	(	const double	First,
		const double	Last )

pure virtual

Sets the bounds of the parametric interval on the function This determines the derivatives in these values if the function is not Cn.

Implemented in GeomFill_EvolvedSection, GeomFill_NSections, and GeomFill_UniformSection.

◆ SetTolerance()

virtual void GeomFill_SectionLaw::SetTolerance	(	const double	Tol3d,
		const double	Tol2d )

virtual

Is useful, if <me> has to run numerical algorithm to perform D0, D1 or D2 The default implementation make nothing.

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

GeomFill_SectionLaw.hxx

Public Member Functions

Additional Inherited Members

Detailed Description

Member Function Documentation

◆ BarycentreOfSurf()

◆ BSplineSurface()

◆ CirclSection()

◆ ConstantSection()

◆ D0()

◆ D1()

◆ D2()

◆ GetDomain()

◆ GetInterval()

◆ GetMinimalWeight()

◆ GetTolerance()

◆ Intervals()

◆ IsConicalLaw()

◆ IsConstant()

◆ IsRational()

◆ IsUPeriodic()

◆ IsVPeriodic()

◆ Knots()

◆ MaximalSection()

◆ Mults()

◆ NbIntervals()

◆ SectionShape()

◆ SetInterval()

◆ SetTolerance()