GeomFill_CircularBlendFunc Class Reference

Circular Blend Function to approximate by SweepApproximation from Approx. More...

#include <GeomFill_CircularBlendFunc.hxx>

Inheritance diagram for GeomFill_CircularBlendFunc:

Public Member Functions
	GeomFill_CircularBlendFunc (const occ::handle< Adaptor3d_Curve > &Path, const occ::handle< Adaptor3d_Curve > &Curve1, const occ::handle< Adaptor3d_Curve > &Curve2, const double Radius, const bool Polynomial=false)
	Create a Blend with a constant radius with 2 guide-line. <FShape> sets the type of fillet surface. The default value is Convert_TgtThetaOver2 (classical nurbs representation of circles). ChFi3d_QuasiAngular corresponds to a nurbs representation of circles which parameterisation matches the circle one. ChFi3d_Polynomial corresponds to a polynomial representation of circles.
bool	D0 (const double Param, const double First, const double Last, NCollection_Array1< gp_Pnt > &Poles, NCollection_Array1< gp_Pnt2d > &Poles2d, NCollection_Array1< double > &Weigths) override
	compute the section for v = param
bool	D1 (const double Param, const double First, const double Last, NCollection_Array1< gp_Pnt > &Poles, NCollection_Array1< gp_Vec > &DPoles, NCollection_Array1< gp_Pnt2d > &Poles2d, NCollection_Array1< gp_Vec2d > &DPoles2d, NCollection_Array1< double > &Weigths, NCollection_Array1< double > &DWeigths) override
	compute the first derivative in v direction of the section for v = param
bool	D2 (const double Param, const double First, const double Last, NCollection_Array1< gp_Pnt > &Poles, NCollection_Array1< gp_Vec > &DPoles, NCollection_Array1< gp_Vec > &D2Poles, NCollection_Array1< gp_Pnt2d > &Poles2d, NCollection_Array1< gp_Vec2d > &DPoles2d, NCollection_Array1< gp_Vec2d > &D2Poles2d, NCollection_Array1< double > &Weigths, NCollection_Array1< double > &DWeigths, NCollection_Array1< double > &D2Weigths) override
	compute the second derivative in v direction of the section for v = param
int	Nb2dCurves () const override
	get the number of 2d curves to approximate.
void	SectionShape (int &NbPoles, int &NbKnots, int &Degree) const override
	get the format of an section
void	Knots (NCollection_Array1< double > &TKnots) const override
	get the Knots of the section
void	Mults (NCollection_Array1< int > &TMults) const override
	get the Multplicities of the section
bool	IsRational () const override
	Returns if the section is rational or not.
int	NbIntervals (const GeomAbs_Shape S) const override
	Returns the number of intervals for continuity . May be one if Continuity(me) >=
void	Intervals (NCollection_Array1< double > &T, const GeomAbs_Shape S) const override
	Stores in <T> the parameters bounding the intervals of continuity .
void	SetInterval (const double First, const double Last) override
	Sets the bounds of the parametric interval on the fonction This determines the derivatives in these values if the function is not Cn.
void	GetTolerance (const double BoundTol, const double SurfTol, const double AngleTol, NCollection_Array1< double > &Tol3d) const override
	Returns the tolerance to reach in approximation to respect BoundTol error at the Boundary AngleTol tangent error at the Boundary (in radian) SurfTol error inside the surface.
void	SetTolerance (const double Tol3d, const double Tol2d) override
	Is useful, if (me) has to be run numerical algorithm to perform D0, D1 or D2.
gp_Pnt	BarycentreOfSurf () const override
	Get the barycentre of Surface. A very poor estimation is sufficient. This information is useful to perform well conditioned rational approximation.
double	MaximalSection () const override
	Returns the length of the maximum section. This information is useful to perform well conditioned rational approximation.
void	GetMinimalWeight (NCollection_Array1< double > &Weigths) const override
	Compute the minimal value of weight for each poles of all sections. This information is useful to perform well conditioned rational approximation.
Public Member Functions inherited from Approx_SweepFunction
virtual void	Resolution (const int Index, const double Tol, double &TolU, double &TolV) const
	Returns the resolutions in the sub-space 2d <Index> This information is useful to find a good tolerance in 2d approximation.
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

Circular Blend Function to approximate by SweepApproximation from Approx.

Constructor & Destructor Documentation

GeomFill_CircularBlendFunc()

GeomFill_CircularBlendFunc::GeomFill_CircularBlendFunc	(	const occ::handle< Adaptor3d_Curve > &	Path,
		const occ::handle< Adaptor3d_Curve > &	Curve1,
		const occ::handle< Adaptor3d_Curve > &	Curve2,
		const double	Radius,
		const bool	Polynomial = false )

Create a Blend with a constant radius with 2 guide-line. <FShape> sets the type of fillet surface. The default value is Convert_TgtThetaOver2 (classical nurbs representation of circles). ChFi3d_QuasiAngular corresponds to a nurbs representation of circles which parameterisation matches the circle one. ChFi3d_Polynomial corresponds to a polynomial representation of circles.

Member Function Documentation

BarycentreOfSurf()

gp_Pnt GeomFill_CircularBlendFunc::BarycentreOfSurf ( ) const

overridevirtual

Get the barycentre of Surface. A very poor estimation is sufficient. This information is useful to perform well conditioned rational approximation.

Reimplemented from Approx_SweepFunction.

D0()

bool GeomFill_CircularBlendFunc::D0 ( const double Param, const double First, const double Last, NCollection_Array1< gp_Pnt > & Poles, NCollection_Array1< gp_Pnt2d > & Poles2d, NCollection_Array1< double > & Weigths )

overridevirtual

compute the section for v = param

Implements Approx_SweepFunction.

D1()

bool GeomFill_CircularBlendFunc::D1 ( const double Param, const double First, const double Last, NCollection_Array1< gp_Pnt > & Poles, NCollection_Array1< gp_Vec > & DPoles, NCollection_Array1< gp_Pnt2d > & Poles2d, NCollection_Array1< gp_Vec2d > & DPoles2d, NCollection_Array1< double > & Weigths, NCollection_Array1< double > & DWeigths )

overridevirtual

compute the first derivative in v direction of the section for v = param

Reimplemented from Approx_SweepFunction.

D2()

bool GeomFill_CircularBlendFunc::D2 ( const double Param, const double First, const double Last, NCollection_Array1< gp_Pnt > & Poles, NCollection_Array1< gp_Vec > & DPoles, NCollection_Array1< gp_Vec > & D2Poles, NCollection_Array1< gp_Pnt2d > & Poles2d, NCollection_Array1< gp_Vec2d > & DPoles2d, NCollection_Array1< gp_Vec2d > & D2Poles2d, NCollection_Array1< double > & Weigths, NCollection_Array1< double > & DWeigths, NCollection_Array1< double > & D2Weigths )

overridevirtual

compute the second derivative in v direction of the section for v = param

Reimplemented from Approx_SweepFunction.

GetMinimalWeight()

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

overridevirtual

Compute the minimal value of weight for each poles of all sections. This information is useful to perform well conditioned rational approximation.

Reimplemented from Approx_SweepFunction.

GetTolerance()

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

overridevirtual

Returns the tolerance to reach in approximation to respect BoundTol error at the Boundary AngleTol tangent error at the Boundary (in radian) SurfTol error inside the surface.

Implements Approx_SweepFunction.

Intervals()

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

overridevirtual

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()

Implements Approx_SweepFunction.

IsRational()

bool GeomFill_CircularBlendFunc::IsRational ( ) const

overridevirtual

Returns if the section is rational or not.

Implements Approx_SweepFunction.

Knots()

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

overridevirtual

get the Knots of the section

Implements Approx_SweepFunction.

MaximalSection()

double GeomFill_CircularBlendFunc::MaximalSection ( ) const

overridevirtual

Returns the length of the maximum section. This information is useful to perform well conditioned rational approximation.

Reimplemented from Approx_SweepFunction.

Mults()

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

overridevirtual

get the Multplicities of the section

Implements Approx_SweepFunction.

Nb2dCurves()

int GeomFill_CircularBlendFunc::Nb2dCurves ( ) const

overridevirtual

get the number of 2d curves to approximate.

Implements Approx_SweepFunction.

NbIntervals()

int GeomFill_CircularBlendFunc::NbIntervals ( const GeomAbs_Shape S ) const

overridevirtual

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

Implements Approx_SweepFunction.

SectionShape()

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

overridevirtual

get the format of an section

Implements Approx_SweepFunction.

SetInterval()

void GeomFill_CircularBlendFunc::SetInterval ( const double First, const double Last )

overridevirtual

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

Implements Approx_SweepFunction.

SetTolerance()

void GeomFill_CircularBlendFunc::SetTolerance ( const double Tol3d, const double Tol2d )

overridevirtual

Is useful, if (me) has to be run numerical algorithm to perform D0, D1 or D2.

Implements Approx_SweepFunction.

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

• GeomFill_CircularBlendFunc.hxx