The Curve from BRepAdaptor allows to use an Edge of the BRep topology like a 3D curve. More...

#include <BRepAdaptor_Curve.hxx>

Inheritance diagram for BRepAdaptor_Curve:

[legend]

Public Member Functions
	BRepAdaptor_Curve ()
	Creates an undefined Curve with no Edge loaded.

	BRepAdaptor_Curve (const TopoDS_Edge &E)
	Creates a Curve to access the geometry of edge <E>.

	BRepAdaptor_Curve (const TopoDS_Edge &E, const TopoDS_Face &F)
	Creates a Curve to access the geometry of edge <E>. The geometry will be computed using the parametric curve of <E> on the face <F>. An Error is raised if the edge does not have a pcurve on the face.

occ::handle< Adaptor3d_Curve >	ShallowCopy () const override
	Shallow copy of adaptor.

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

void	Initialize (const TopoDS_Edge &E)
	Sets the Curve <me> to access the geometry of edge <E>.

void	Initialize (const TopoDS_Edge &E, const TopoDS_Face &F)
	Sets the Curve <me> to access the geometry of edge <E>. The geometry will be computed using the parametric curve of <E> on the face <F>. An Error is raised if the edge does not have a pcurve on the face.

const TopoDS_Edge &	Edge () const
	Returns the edge.

double	Tolerance () const
	Returns the edge tolerance.

occ::handle< Adaptor3d_Curve >	Trim (const double First, const double Last, const double Tol) const override
	Returns a curve equivalent of <me> between parameters <First> and <Last>. <Tol> is used to test for 3d points confusion.

Public Member Functions inherited from GeomAdaptor_TransformedCurve
	GeomAdaptor_TransformedCurve ()
	Creates an undefined curve with identity transformation.

	GeomAdaptor_TransformedCurve (const occ::handle< Geom_Curve > &theCurve, const gp_Trsf &theTrsf)
	Creates a curve adaptor with transformation.

	GeomAdaptor_TransformedCurve (const occ::handle< Geom_Curve > &theCurve, const double theFirst, const double theLast, const gp_Trsf &theTrsf)
	Creates a curve adaptor with transformation and parameter bounds.

occ::handle< Adaptor3d_Curve >	ShallowCopy () const override
	Shallow copy of adaptor.

void	Load (const occ::handle< Geom_Curve > &theCurve)
	Loads the curve geometry.

void	Load (const occ::handle< Geom_Curve > &theCurve, const double theFirst, const double theLast)
	Loads the curve geometry with parameter bounds.

void	LoadCurveOnSurface (const occ::handle< Adaptor3d_CurveOnSurface > &theConSurf)
	Sets the curve on surface adaptor.

void	SetTrsf (const gp_Trsf &theTrsf)
	Sets the transformation.

const gp_Trsf &	Trsf () const
	Returns the transformation.

bool	Is3DCurve () const
	Returns true if the geometry is a 3D curve (not curve on surface).

bool	IsCurveOnSurface () const
	Returns true if the geometry is a curve on surface.

const GeomAdaptor_Curve &	Curve () const
	Returns the underlying GeomAdaptor_Curve.

GeomAdaptor_Curve &	ChangeCurve ()
	Returns the underlying GeomAdaptor_Curve for modification.

const Adaptor3d_CurveOnSurface &	CurveOnSurface () const
	Returns the CurveOnSurface adaptor.

const occ::handle< Geom_Curve > &	GeomCurve () const
	Returns the underlying Geom_Curve.

double	FirstParameter () const override

double	LastParameter () const override

GeomAbs_Shape	Continuity () const override

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

void	Intervals (NCollection_Array1< double > &theT, const GeomAbs_Shape theS) const override
	Stores in <T> the parameters bounding the intervals of continuity .

occ::handle< Adaptor3d_Curve >	Trim (const double theFirst, const double theLast, const double theTol) 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>

bool	IsClosed () const override

bool	IsPeriodic () const override

double	Period () const override

gp_Pnt	EvalD0 (const double theU) const final
	Point evaluation. Applies transformation after evaluation.

Geom_Curve::ResD1	EvalD1 (const double theU) const final
	D1 evaluation. Applies transformation after evaluation.

Geom_Curve::ResD2	EvalD2 (const double theU) const final
	D2 evaluation. Applies transformation after evaluation.

Geom_Curve::ResD3	EvalD3 (const double theU) const final
	D3 evaluation. Applies transformation after evaluation.

gp_Vec	EvalDN (const double theU, const int theN) const final
	DN evaluation. Applies transformation after evaluation.

double	Resolution (const double theR3d) const override
	Returns the parametric resolution corresponding to the real space resolution <R3d>.

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

int	Degree () const override

bool	IsRational () const override

int	NbPoles () const override

int	NbKnots () const override

occ::handle< Geom_BezierCurve >	Bezier () const override

occ::handle< Geom_BSplineCurve >	BSpline () const override

occ::handle< Geom_OffsetCurve >	OffsetCurve () const override

Public Member Functions inherited from Adaptor3d_Curve
gp_Pnt	Value (const double theU) const
	Computes the point of parameter U on the curve.

void	D0 (const double theU, gp_Pnt &theP) const
	Computes the point of parameter U on the curve.

void	D1 (const double theU, gp_Pnt &theP, gp_Vec &theV) const
	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 double theU, gp_Pnt &theP, gp_Vec &theV1, gp_Vec &theV2) const
	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 double theU, gp_Pnt &theP, gp_Vec &theV1, gp_Vec &theV2, gp_Vec &theV3) const
	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 double theU, const int theN) const
	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.

	~Adaptor3d_Curve () override

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.

Protected Attributes inherited from GeomAdaptor_TransformedCurve
GeomAdaptor_Curve	myCurve

occ::handle< Adaptor3d_CurveOnSurface >	myConSurf

gp_Trsf	myTrsf

Detailed Description

The Curve from BRepAdaptor allows to use an Edge of the BRep topology like a 3D curve.

It has the methods the class Curve from Adaptor3d.

It is created or Initialized with an Edge. It takes into account local coordinate systems. If the Edge has a 3D curve it is use with priority. If the edge has no 3D curve one of the curves on surface is used. It is possible to enforce using a curve on surface by creating or initialising with an Edge and a Face.

Constructor & Destructor Documentation

◆ BRepAdaptor_Curve() [1/3]

BRepAdaptor_Curve::BRepAdaptor_Curve ( )

Creates an undefined Curve with no Edge loaded.

◆ BRepAdaptor_Curve() [2/3]

BRepAdaptor_Curve::BRepAdaptor_Curve ( const TopoDS_Edge & E )

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

◆ BRepAdaptor_Curve() [3/3]

BRepAdaptor_Curve::BRepAdaptor_Curve	(	const TopoDS_Edge &	E,
		const TopoDS_Face &	F )

Creates a Curve to access the geometry of edge <E>. The geometry will be computed using the parametric curve of <E> on the face <F>. An Error is raised if the edge does not have a pcurve on the face.

Member Function Documentation

◆ Edge()

const TopoDS_Edge & BRepAdaptor_Curve::Edge ( ) const

Returns the edge.

◆ Initialize() [1/2]

void BRepAdaptor_Curve::Initialize ( const TopoDS_Edge & E )

Sets the Curve <me> to access the geometry of edge <E>.

◆ Initialize() [2/2]

void BRepAdaptor_Curve::Initialize	(	const TopoDS_Edge &	E,
		const TopoDS_Face &	F )

Sets the Curve <me> to access the geometry of edge <E>. The geometry will be computed using the parametric curve of <E> on the face <F>. An Error is raised if the edge does not have a pcurve on the face.

◆ Reset()

void BRepAdaptor_Curve::Reset ( )

Reset currently loaded curve (undone Load()).

◆ ShallowCopy()

occ::handle< Adaptor3d_Curve > BRepAdaptor_Curve::ShallowCopy ( ) const

overridevirtual

Shallow copy of adaptor.

Reimplemented from Adaptor3d_Curve.

◆ Tolerance()

double BRepAdaptor_Curve::Tolerance ( ) const

Returns the edge tolerance.

◆ Trim()

occ::handle< Adaptor3d_Curve > BRepAdaptor_Curve::Trim	(	const double	First,
		const double	Last,
		const double	Tol ) const