The Curve from BRepAdaptor allows to use a Wire of the BRep topology like a 3D curve. Warning: With this class of curve, C0 and C1 continuities are not assumed. So be careful with some algorithm! Please note that BRepAdaptor_CompCurve cannot be periodic curve at all (even if it contains single periodic edge). More...

#include <BRepAdaptor_CompCurve.hxx>

Inheritance diagram for BRepAdaptor_CompCurve:

[legend]

Public Member Functions
	BRepAdaptor_CompCurve ()
	Creates an undefined Curve with no Wire loaded.

	BRepAdaptor_CompCurve (const TopoDS_Wire &W, const Standard_Boolean KnotByCurvilinearAbcissa=Standard_False)

	BRepAdaptor_CompCurve (const TopoDS_Wire &W, const Standard_Boolean KnotByCurvilinearAbcissa, const Standard_Real First, const Standard_Real Last, const Standard_Real Tol)
	Creates a Curve to access the geometry of edge <W>.

virtual Handle< Adaptor3d_Curve >	ShallowCopy () const override
	Shallow copy of adaptor.

void	Initialize (const TopoDS_Wire &W, const Standard_Boolean KnotByCurvilinearAbcissa)
	Sets the wire <W>.

void	Initialize (const TopoDS_Wire &W, const Standard_Boolean KnotByCurvilinearAbcissa, const Standard_Real First, const Standard_Real Last, const Standard_Real Tol)
	Sets wire <W> and trimmed parameter.

const TopoDS_Wire &	Wire () const
	Returns the wire.

void	Edge (const Standard_Real U, TopoDS_Edge &E, Standard_Real &UonE) const
	returns an edge and one parameter on them corresponding to the parameter U.

Standard_Real	FirstParameter () const override

Standard_Real	LastParameter () const override

GeomAbs_Shape	Continuity () const override

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

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

Handle< Adaptor3d_Curve >	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_Pnt	Value (const Standard_Real U) const override
	Computes the point of parameter U on the curve.

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

void	D1 (const Standard_Real U, gp_Pnt &P, gp_Vec &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_Pnt &P, gp_Vec &V1, gp_Vec &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_Pnt &P, gp_Vec &V1, gp_Vec &V2, gp_Vec &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_Vec	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 R3d) const override
	returns the parametric resolution

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

gp_Lin	Line () const override

gp_Circ	Circle () const override

gp_Elips	Ellipse () const override

gp_Hypr	Hyperbola () const override

gp_Parab	Parabola () const override

Standard_Integer	Degree () const override

Standard_Boolean	IsRational () const override

Standard_Integer	NbPoles () const override

Standard_Integer	NbKnots () const override

Handle< Geom_BezierCurve >	Bezier () const override

Handle< Geom_BSplineCurve >	BSpline () const override

Public Member Functions inherited from Adaptor3d_Curve
virtual Handle< Geom_OffsetCurve >	OffsetCurve () const

virtual	~Adaptor3d_Curve ()

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.

Additional Inherited Members
typedef void	base_type
	Returns a type descriptor about this object.

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

The Curve from BRepAdaptor allows to use a Wire of the BRep topology like a 3D curve. Warning: With this class of curve, C0 and C1 continuities are not assumed. So be careful with some algorithm! Please note that BRepAdaptor_CompCurve cannot be periodic curve at all (even if it contains single periodic edge).

BRepAdaptor_CompCurve can only work on valid wires where all edges are connected to each other to make a chain.

Constructor & Destructor Documentation

◆ BRepAdaptor_CompCurve() [1/3]

BRepAdaptor_CompCurve::BRepAdaptor_CompCurve ( )

Creates an undefined Curve with no Wire loaded.

◆ BRepAdaptor_CompCurve() [2/3]

BRepAdaptor_CompCurve::BRepAdaptor_CompCurve	(	const TopoDS_Wire &	W,
		const Standard_Boolean	KnotByCurvilinearAbcissa = Standard_False )

◆ BRepAdaptor_CompCurve() [3/3]

BRepAdaptor_CompCurve::BRepAdaptor_CompCurve	(	const TopoDS_Wire &	W,
		const Standard_Boolean	KnotByCurvilinearAbcissa,
		const Standard_Real	First,
		const Standard_Real	Last,
		const Standard_Real	Tol )

Creates a Curve to access the geometry of edge <W>.

Member Function Documentation

◆ Bezier()

Handle< Geom_BezierCurve > BRepAdaptor_CompCurve::Bezier ( ) const

overridevirtual

Reimplemented from Adaptor3d_Curve.

◆ BSpline()

Handle< Geom_BSplineCurve > BRepAdaptor_CompCurve::BSpline ( ) const

overridevirtual

Reimplemented from Adaptor3d_Curve.

◆ Circle()

gp_Circ BRepAdaptor_CompCurve::Circle ( ) const

overridevirtual

Reimplemented from Adaptor3d_Curve.

◆ Continuity()

GeomAbs_Shape BRepAdaptor_CompCurve::Continuity ( ) const

overridevirtual

Reimplemented from Adaptor3d_Curve.

◆ D0()

void BRepAdaptor_CompCurve::D0	(	const Standard_Real	U,
		gp_Pnt &	P ) const

overridevirtual

Computes the point of parameter U.

Reimplemented from Adaptor3d_Curve.

◆ D1()

void BRepAdaptor_CompCurve::D1	(	const Standard_Real	U,
		gp_Pnt &	P,
		gp_Vec &	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 Adaptor3d_Curve.

◆ D2()

void BRepAdaptor_CompCurve::D2	(	const Standard_Real	U,
		gp_Pnt &	P,
		gp_Vec &	V1,
		gp_Vec &	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 Adaptor3d_Curve.

◆ D3()

void BRepAdaptor_CompCurve::D3	(	const Standard_Real	U,
		gp_Pnt &	P,
		gp_Vec &	V1,
		gp_Vec &	V2,
		gp_Vec &	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 Adaptor3d_Curve.

◆ Degree()

Standard_Integer BRepAdaptor_CompCurve::Degree ( ) const

overridevirtual

Reimplemented from Adaptor3d_Curve.

◆ DN()

gp_Vec BRepAdaptor_CompCurve::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 Adaptor3d_Curve.

◆ Edge()

void BRepAdaptor_CompCurve::Edge	(	const Standard_Real	U,
		TopoDS_Edge &	E,
		Standard_Real &	UonE ) const

returns an edge and one parameter on them corresponding to the parameter U.

◆ Ellipse()

gp_Elips BRepAdaptor_CompCurve::Ellipse ( ) const

overridevirtual

Reimplemented from Adaptor3d_Curve.

◆ FirstParameter()

Standard_Real BRepAdaptor_CompCurve::FirstParameter ( ) const

overridevirtual

Reimplemented from Adaptor3d_Curve.

◆ GetType()

GeomAbs_CurveType BRepAdaptor_CompCurve::GetType ( ) const

overridevirtual

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

Reimplemented from Adaptor3d_Curve.

◆ Hyperbola()

gp_Hypr BRepAdaptor_CompCurve::Hyperbola ( ) const

overridevirtual

Reimplemented from Adaptor3d_Curve.

◆ Initialize() [1/2]

void BRepAdaptor_CompCurve::Initialize	(	const TopoDS_Wire &	W,
		const Standard_Boolean	KnotByCurvilinearAbcissa )

Sets the wire <W>.

◆ Initialize() [2/2]

void BRepAdaptor_CompCurve::Initialize	(	const TopoDS_Wire &	W,
		const Standard_Boolean	KnotByCurvilinearAbcissa,
		const Standard_Real	First,
		const Standard_Real	Last,
		const Standard_Real	Tol )

Sets wire <W> and trimmed parameter.

◆ Intervals()

void BRepAdaptor_CompCurve::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 Adaptor3d_Curve.

◆ IsClosed()

Standard_Boolean BRepAdaptor_CompCurve::IsClosed ( ) const

overridevirtual

Reimplemented from Adaptor3d_Curve.

◆ IsPeriodic()

Standard_Boolean BRepAdaptor_CompCurve::IsPeriodic ( ) const

overridevirtual

Reimplemented from Adaptor3d_Curve.

◆ IsRational()

Standard_Boolean BRepAdaptor_CompCurve::IsRational ( ) const

overridevirtual

Reimplemented from Adaptor3d_Curve.

◆ LastParameter()

Standard_Real BRepAdaptor_CompCurve::LastParameter ( ) const

overridevirtual

Reimplemented from Adaptor3d_Curve.

◆ Line()

gp_Lin BRepAdaptor_CompCurve::Line ( ) const

overridevirtual

Reimplemented from Adaptor3d_Curve.

◆ NbIntervals()

Standard_Integer BRepAdaptor_CompCurve::NbIntervals ( const GeomAbs_Shape S ) const

overridevirtual

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

Reimplemented from Adaptor3d_Curve.

◆ NbKnots()

Standard_Integer BRepAdaptor_CompCurve::NbKnots ( ) const

overridevirtual

Reimplemented from Adaptor3d_Curve.

◆ NbPoles()

Standard_Integer BRepAdaptor_CompCurve::NbPoles ( ) const

overridevirtual

Reimplemented from Adaptor3d_Curve.

◆ Parabola()

gp_Parab BRepAdaptor_CompCurve::Parabola ( ) const

overridevirtual

Reimplemented from Adaptor3d_Curve.

◆ Period()

Standard_Real BRepAdaptor_CompCurve::Period ( ) const

overridevirtual

Reimplemented from Adaptor3d_Curve.

◆ Resolution()

Standard_Real BRepAdaptor_CompCurve::Resolution ( const Standard_Real R3d ) const

overridevirtual

returns the parametric resolution

Reimplemented from Adaptor3d_Curve.

◆ ShallowCopy()

virtual Handle< Adaptor3d_Curve > BRepAdaptor_CompCurve::ShallowCopy ( ) const

overridevirtual

Shallow copy of adaptor.

Reimplemented from Adaptor3d_Curve.

◆ Trim()

Handle< Adaptor3d_Curve > BRepAdaptor_CompCurve::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 Adaptor3d_Curve.

◆ Value()

gp_Pnt BRepAdaptor_CompCurve::Value ( const Standard_Real U ) const

overridevirtual

Computes the point of parameter U on the curve.

Reimplemented from Adaptor3d_Curve.

◆ Wire()

const TopoDS_Wire & BRepAdaptor_CompCurve::Wire ( ) const

Returns the wire.

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

BRepAdaptor_CompCurve.hxx

Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ BRepAdaptor_CompCurve() [1/3]

◆ BRepAdaptor_CompCurve() [2/3]

◆ BRepAdaptor_CompCurve() [3/3]

Member Function Documentation

◆ Bezier()

◆ BSpline()

◆ Circle()

◆ Continuity()

◆ D0()

◆ D1()

◆ D2()

◆ D3()

◆ Degree()

◆ DN()

◆ Edge()

◆ Ellipse()

◆ FirstParameter()

◆ GetType()

◆ Hyperbola()

◆ Initialize() [1/2]

◆ Initialize() [2/2]

◆ Intervals()

◆ IsClosed()

◆ IsPeriodic()

◆ IsRational()

◆ LastParameter()

◆ Line()

◆ NbIntervals()

◆ NbKnots()

◆ NbPoles()

◆ Parabola()

◆ Period()

◆ Resolution()

◆ ShallowCopy()

◆ Trim()

◆ Value()

◆ Wire()