An interface between the services provided by any curve from the package Geom2d and those required of the curve by algorithms which use it. More...

#include <Geom2dAdaptor_Curve.hxx>

Inheritance diagram for Geom2dAdaptor_Curve:

[legend]

Public Member Functions
	Geom2dAdaptor_Curve ()

	Geom2dAdaptor_Curve (const Handle< Geom2d_Curve > &C)

	Geom2dAdaptor_Curve (const Handle< Geom2d_Curve > &C, const Standard_Real UFirst, const Standard_Real ULast)
	Standard_ConstructionError is raised if Ufirst>Ulast.

virtual Handle< Adaptor2d_Curve2d >	ShallowCopy () const override
	Shallow copy of adaptor.

void	Reset ()
	Reset currently loaded curve (undone Load()).

void	Load (const Handle< Geom2d_Curve > &theCurve)

void	Load (const Handle< Geom2d_Curve > &theCurve, const Standard_Real theUFirst, const Standard_Real theULast)
	Standard_ConstructionError is raised if theUFirst>theULast.

const Handle< Geom2d_Curve > &	Curve () const

virtual Standard_Real	FirstParameter () const override

virtual Standard_Real	LastParameter () const override

GeomAbs_Shape	Continuity () const override

Standard_Integer	NbIntervals (const GeomAbs_Shape S) const override
	If necessary, breaks the curve in intervals of continuity ~~. And returns the number of intervals.~~

void	Intervals (TColStd_Array1OfReal &T, const GeomAbs_Shape S) const override
	Stores in <T> the parameters bounding the intervals of continuity .

Handle< Adaptor2d_Curve2d >	Trim (const Standard_Real First, const Standard_Real Last, const Standard_Real Tol) const override
	Returns a curve equivalent of <me> between parameters <First> and <Last>. <Tol> is used to test for 3d points confusion. If <First> >= <Last>

Standard_Boolean	IsClosed () const override

Standard_Boolean	IsPeriodic () const override

Standard_Real	Period () const override

gp_Pnt2d	Value (const Standard_Real U) const override
	Computes the point of parameter U on the curve.

void	D0 (const Standard_Real U, gp_Pnt2d &P) const override
	Computes the point of parameter U.

void	D1 (const Standard_Real U, gp_Pnt2d &P, gp_Vec2d &V) const override
	Computes the point of parameter U on the curve with its first derivative. Raised if the continuity of the current interval is not C1.

void	D2 (const Standard_Real U, gp_Pnt2d &P, gp_Vec2d &V1, gp_Vec2d &V2) const override
	Returns the point P of parameter U, the first and second derivatives V1 and V2. Raised if the continuity of the current interval is not C2.

void	D3 (const Standard_Real U, gp_Pnt2d &P, gp_Vec2d &V1, gp_Vec2d &V2, gp_Vec2d &V3) const override
	Returns the point P of parameter U, the first, the second and the third derivative. Raised if the continuity of the current interval is not C3.

gp_Vec2d	DN (const Standard_Real U, const Standard_Integer N) const override
	The returned vector gives the value of the derivative for the order of derivation N. Raised if the continuity of the current interval is not CN. Raised if N < 1.

Standard_Real	Resolution (const Standard_Real Ruv) const override
	returns the parametric resolution

virtual GeomAbs_CurveType	GetType () const override
	Returns the type of the curve in the current interval : Line, Circle, Ellipse, Hyperbola, Parabola, BezierCurve, BSplineCurve, OtherCurve.

gp_Lin2d	Line () const override

gp_Circ2d	Circle () const override

gp_Elips2d	Ellipse () const override

gp_Hypr2d	Hyperbola () const override

gp_Parab2d	Parabola () const override

Standard_Integer	Degree () const override

Standard_Boolean	IsRational () const override

Standard_Integer	NbPoles () const override

Standard_Integer	NbKnots () const override

virtual Standard_Integer	NbSamples () const override

Handle< Geom2d_BezierCurve >	Bezier () const override

Handle< Geom2d_BSplineCurve >	BSpline () const override

Public Member Functions inherited from Adaptor2d_Curve2d
virtual	~Adaptor2d_Curve2d ()

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 ()
	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_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.

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.

Protected Attributes
Handle< Geom2d_Curve >	myCurve

GeomAbs_CurveType	myTypeCurve

Standard_Real	myFirst

Standard_Real	myLast

Handle< Geom2d_BSplineCurve >	myBSplineCurve
	B-spline representation to prevent castings.

Handle< BSplCLib_Cache >	myCurveCache
	Cached data for B-spline or Bezier curve.

Handle< Geom2dEvaluator_Curve >	myNestedEvaluator
	Calculates value of offset curve.

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

An interface between the services provided by any curve from the package Geom2d and those required of the curve by algorithms which use it.

Polynomial coefficients of BSpline curves used for their evaluation are cached for better performance. Therefore these evaluations are not thread-safe and parallel evaluations need to be prevented.

Constructor & Destructor Documentation

◆ Geom2dAdaptor_Curve() [1/3]

Geom2dAdaptor_Curve::Geom2dAdaptor_Curve ( )

◆ Geom2dAdaptor_Curve() [2/3]

Geom2dAdaptor_Curve::Geom2dAdaptor_Curve ( const Handle< Geom2d_Curve > & C )

◆ Geom2dAdaptor_Curve() [3/3]

Geom2dAdaptor_Curve::Geom2dAdaptor_Curve	(	const Handle< Geom2d_Curve > &	C,
		const Standard_Real	UFirst,
		const Standard_Real	ULast
	)

Standard_ConstructionError is raised if Ufirst>Ulast.

Member Function Documentation

◆ Bezier()

Handle< Geom2d_BezierCurve > Geom2dAdaptor_Curve::Bezier ( ) const

overridevirtual

Reimplemented from Adaptor2d_Curve2d.

◆ BSpline()

Handle< Geom2d_BSplineCurve > Geom2dAdaptor_Curve::BSpline ( ) const

overridevirtual

Reimplemented from Adaptor2d_Curve2d.

◆ Circle()

gp_Circ2d Geom2dAdaptor_Curve::Circle ( ) const

overridevirtual

Reimplemented from Adaptor2d_Curve2d.

◆ Continuity()

GeomAbs_Shape Geom2dAdaptor_Curve::Continuity ( ) const

overridevirtual

Reimplemented from Adaptor2d_Curve2d.

◆ Curve()

const Handle< Geom2d_Curve > & Geom2dAdaptor_Curve::Curve ( ) const

inline

◆ D0()

void Geom2dAdaptor_Curve::D0	(	const Standard_Real	U,
		gp_Pnt2d &	P
	)		const

overridevirtual

Computes the point of parameter U.

Reimplemented from Adaptor2d_Curve2d.

◆ D1()

void Geom2dAdaptor_Curve::D1	(	const Standard_Real	U,
		gp_Pnt2d &	P,
		gp_Vec2d &	V
	)		const

overridevirtual

Computes the point of parameter U on the curve with its first derivative. Raised if the continuity of the current interval is not C1.

Reimplemented from Adaptor2d_Curve2d.

◆ D2()

void Geom2dAdaptor_Curve::D2	(	const Standard_Real	U,
		gp_Pnt2d &	P,
		gp_Vec2d &	V1,
		gp_Vec2d &	V2
	)		const

overridevirtual

Returns the point P of parameter U, the first and second derivatives V1 and V2. Raised if the continuity of the current interval is not C2.

Reimplemented from Adaptor2d_Curve2d.

◆ D3()

void Geom2dAdaptor_Curve::D3	(	const Standard_Real	U,
		gp_Pnt2d &	P,
		gp_Vec2d &	V1,
		gp_Vec2d &	V2,
		gp_Vec2d &	V3
	)		const

overridevirtual

Returns the point P of parameter U, the first, the second and the third derivative. Raised if the continuity of the current interval is not C3.

Reimplemented from Adaptor2d_Curve2d.

◆ Degree()

Standard_Integer Geom2dAdaptor_Curve::Degree ( ) const

overridevirtual

Reimplemented from Adaptor2d_Curve2d.

◆ DN()

gp_Vec2d Geom2dAdaptor_Curve::DN	(	const Standard_Real	U,
		const Standard_Integer	N
	)		const

overridevirtual

The returned vector gives the value of the derivative for the order of derivation N. Raised if the continuity of the current interval is not CN. Raised if N < 1.

Reimplemented from Adaptor2d_Curve2d.

◆ Ellipse()

gp_Elips2d Geom2dAdaptor_Curve::Ellipse ( ) const

overridevirtual

Reimplemented from Adaptor2d_Curve2d.

◆ FirstParameter()

virtual Standard_Real Geom2dAdaptor_Curve::FirstParameter ( ) const

inlineoverridevirtual

Reimplemented from Adaptor2d_Curve2d.

◆ GetType()

virtual GeomAbs_CurveType Geom2dAdaptor_Curve::GetType ( ) const

inlineoverridevirtual

Returns the type of the curve in the current interval : Line, Circle, Ellipse, Hyperbola, Parabola, BezierCurve, BSplineCurve, OtherCurve.

Reimplemented from Adaptor2d_Curve2d.

◆ Hyperbola()

gp_Hypr2d Geom2dAdaptor_Curve::Hyperbola ( ) const

overridevirtual

Reimplemented from Adaptor2d_Curve2d.

◆ Intervals()

void Geom2dAdaptor_Curve::Intervals	(	TColStd_Array1OfReal &	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()

Reimplemented from Adaptor2d_Curve2d.

◆ IsClosed()

Standard_Boolean Geom2dAdaptor_Curve::IsClosed ( ) const

overridevirtual

Reimplemented from Adaptor2d_Curve2d.

◆ IsPeriodic()

Standard_Boolean Geom2dAdaptor_Curve::IsPeriodic ( ) const

overridevirtual

Reimplemented from Adaptor2d_Curve2d.

◆ IsRational()

Standard_Boolean Geom2dAdaptor_Curve::IsRational ( ) const

overridevirtual

Reimplemented from Adaptor2d_Curve2d.

◆ LastParameter()

virtual Standard_Real Geom2dAdaptor_Curve::LastParameter ( ) const

inlineoverridevirtual

Reimplemented from Adaptor2d_Curve2d.

◆ Line()

gp_Lin2d Geom2dAdaptor_Curve::Line ( ) const

overridevirtual

Reimplemented from Adaptor2d_Curve2d.

◆ Load() [1/2]

void Geom2dAdaptor_Curve::Load ( const Handle< Geom2d_Curve > & theCurve )

inline

◆ Load() [2/2]

void Geom2dAdaptor_Curve::Load	(	const Handle< Geom2d_Curve > &	theCurve,
		const Standard_Real	theUFirst,
		const Standard_Real	theULast
	)

inline

Standard_ConstructionError is raised if theUFirst>theULast.

◆ NbIntervals()

Standard_Integer Geom2dAdaptor_Curve::NbIntervals ( const GeomAbs_Shape S ) const

overridevirtual

If necessary, breaks the curve in intervals of continuity ~~. And returns the number of intervals.~~

Reimplemented from Adaptor2d_Curve2d.

◆ NbKnots()

Standard_Integer Geom2dAdaptor_Curve::NbKnots ( ) const

overridevirtual

Reimplemented from Adaptor2d_Curve2d.

◆ NbPoles()

Standard_Integer Geom2dAdaptor_Curve::NbPoles ( ) const

overridevirtual

Reimplemented from Adaptor2d_Curve2d.

◆ NbSamples()

virtual Standard_Integer Geom2dAdaptor_Curve::NbSamples ( ) const

overridevirtual

Reimplemented from Adaptor2d_Curve2d.

◆ Parabola()

gp_Parab2d Geom2dAdaptor_Curve::Parabola ( ) const

overridevirtual

Reimplemented from Adaptor2d_Curve2d.

◆ Period()

Standard_Real Geom2dAdaptor_Curve::Period ( ) const

overridevirtual

Reimplemented from Adaptor2d_Curve2d.

◆ Reset()

void Geom2dAdaptor_Curve::Reset ( )

Reset currently loaded curve (undone Load()).

◆ Resolution()

Standard_Real Geom2dAdaptor_Curve::Resolution ( const Standard_Real Ruv ) const

overridevirtual

returns the parametric resolution

Reimplemented from Adaptor2d_Curve2d.

◆ ShallowCopy()

virtual Handle< Adaptor2d_Curve2d > Geom2dAdaptor_Curve::ShallowCopy ( ) const

overridevirtual

Shallow copy of adaptor.

Reimplemented from Adaptor2d_Curve2d.

Reimplemented in BRepAdaptor_Curve2d.

◆ Trim()

Handle< Adaptor2d_Curve2d > Geom2dAdaptor_Curve::Trim	(	const Standard_Real	First,
		const Standard_Real	Last,
		const Standard_Real	Tol
	)		const

overridevirtual

Returns a curve equivalent of <me> between parameters <First> and <Last>. <Tol> is used to test for 3d points confusion. If <First> >= <Last>

Reimplemented from Adaptor2d_Curve2d.

◆ Value()

gp_Pnt2d Geom2dAdaptor_Curve::Value ( const Standard_Real U ) const

overridevirtual

Computes the point of parameter U on the curve.

Reimplemented from Adaptor2d_Curve2d.

Field Documentation

◆ myBSplineCurve

Handle< Geom2d_BSplineCurve > Geom2dAdaptor_Curve::myBSplineCurve

protected

B-spline representation to prevent castings.

◆ myCurve

Handle< Geom2d_Curve > Geom2dAdaptor_Curve::myCurve

protected

◆ myCurveCache

Handle< BSplCLib_Cache > Geom2dAdaptor_Curve::myCurveCache

mutableprotected

Cached data for B-spline or Bezier curve.

◆ myFirst

Standard_Real Geom2dAdaptor_Curve::myFirst

protected

◆ myLast

Standard_Real Geom2dAdaptor_Curve::myLast

protected

◆ myNestedEvaluator

Handle< Geom2dEvaluator_Curve > Geom2dAdaptor_Curve::myNestedEvaluator

protected

Calculates value of offset curve.

◆ myTypeCurve

GeomAbs_CurveType Geom2dAdaptor_Curve::myTypeCurve

protected

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

Geom2dAdaptor_Curve.hxx

Public Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ Geom2dAdaptor_Curve() [1/3]

◆ Geom2dAdaptor_Curve() [2/3]

◆ Geom2dAdaptor_Curve() [3/3]

Member Function Documentation

◆ Bezier()

◆ BSpline()

◆ Circle()

◆ Continuity()

◆ Curve()

◆ D0()

◆ D1()

◆ D2()

◆ D3()

◆ Degree()

◆ DN()

◆ Ellipse()

◆ FirstParameter()

◆ GetType()

◆ Hyperbola()

◆ Intervals()

◆ IsClosed()

◆ IsPeriodic()

◆ IsRational()

◆ LastParameter()

◆ Line()

◆ Load() [1/2]

◆ Load() [2/2]

◆ NbIntervals()

◆ NbKnots()

◆ NbPoles()

◆ NbSamples()

◆ Parabola()

◆ Period()

◆ Reset()

◆ Resolution()

◆ ShallowCopy()

◆ Trim()

◆ Value()

Field Documentation

◆ myBSplineCurve

◆ myCurve

◆ myCurveCache

◆ myFirst

◆ myLast

◆ myNestedEvaluator

◆ myTypeCurve