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.
More...

#include <BRepAdaptor_Curve.hxx>

Inheritance diagram for BRepAdaptor_Curve:

[legend]

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

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

	BRepAdaptor_Curve (const TopoDS_Edge &E, const TopoDS_Face &F)
	Creates a Curve to acces to 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. More...

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

void	Initialize (const TopoDS_Edge &E, const TopoDS_Face &F)
	Sets the Curve <me> to acces to 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. More...

const gp_Trsf &	Trsf () const
	Returns the coordinate system of the curve. More...

Standard_Boolean	Is3DCurve () const
	Returns True if the edge geometry is computed from a 3D curve. More...

Standard_Boolean	IsCurveOnSurface () const
	Returns True if the edge geometry is computed from a pcurve on a surface. More...

const GeomAdaptor_Curve &	Curve () const
	Returns the Curve of the edge. More...

const Adaptor3d_CurveOnSurface &	CurveOnSurface () const
	Returns the CurveOnSurface of the edge. More...

const TopoDS_Edge &	Edge () const
	Returns the edge. <br> More...

Standard_Real	Tolerance () const
	Returns the edge tolerance. <br> More...

Standard_Real	FirstParameter () const

Standard_Real	LastParameter () const

GeomAbs_Shape	Continuity () const

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

void	Intervals (TColStd_Array1OfReal &T, const GeomAbs_Shape S)
	Stores in <T> the parameters bounding the intervals <br> of continuity <S>. <br> The array must provide enough room to accomodate for the parameters. i.e. T.Length() > NbIntervals() More...

Handle_Adaptor3d_HCurve	Trim (const Standard_Real First, const Standard_Real Last, const Standard_Real Tol) const
	Returns a curve equivalent of <me> between parameters <First> and <Last>. <Tol> is used to test for 3d points confusion. //! If <First> >= <Last> More...

Standard_Boolean	IsClosed () const

Standard_Boolean	IsPeriodic () const

Standard_Real	Period () const

gp_Pnt	Value (const Standard_Real U) const
	Computes the point of parameter U on the curve More...

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

void	D1 (const Standard_Real U, gp_Pnt &P, gp_Vec &V) const
	Computes the point of parameter U on the curve <br> with its first derivative. //! Raised if the continuity of the current interval is not C1. More...

void	D2 (const Standard_Real U, gp_Pnt &P, gp_Vec &V1, gp_Vec &V2) 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. More...

void	D3 (const Standard_Real U, gp_Pnt &P, gp_Vec &V1, gp_Vec &V2, gp_Vec &V3) 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. More...

gp_Vec	DN (const Standard_Real U, const Standard_Integer N) 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. More...

Standard_Real	Resolution (const Standard_Real R3d) const
	returns the parametric resolution More...

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

gp_Lin	Line () const

gp_Circ	Circle () const

gp_Elips	Ellipse () const

gp_Hypr	Hyperbola () const

gp_Parab	Parabola () const

Standard_Integer	Degree () const

Standard_Boolean	IsRational () const

Standard_Integer	NbPoles () const

Standard_Integer	NbKnots () const

Handle_Geom_BezierCurve	Bezier () const
	Warning : This will make a copy of the Bezier Curve since it applies to it myTsrf . Be carefull when using this method More...

Handle_Geom_BSplineCurve	BSpline () const
	Warning : This will make a copy of the BSpline Curve since it applies to it myTsrf . Be carefull when using this method More...

Public Member Functions inherited from Adaptor3d_Curve
virtual void	Delete ()

virtual	~Adaptor3d_Curve ()

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::BRepAdaptor_Curve ( )

Creates an undefined Curve with no Edge loaded.

BRepAdaptor_Curve::BRepAdaptor_Curve ( const TopoDS_Edge & E )

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

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

Creates a Curve to acces to 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

Handle_Geom_BezierCurve BRepAdaptor_Curve::Bezier ( ) const

virtual

Warning :
This will make a copy of the Bezier Curve
since it applies to it myTsrf . Be carefull when
using this method

Reimplemented from Adaptor3d_Curve.

Handle_Geom_BSplineCurve BRepAdaptor_Curve::BSpline ( ) const

virtual

Warning :
This will make a copy of the BSpline Curve
since it applies to it myTsrf . Be carefull when
using this method

Reimplemented from Adaptor3d_Curve.

gp_Circ BRepAdaptor_Curve::Circle ( ) const

virtual

Reimplemented from Adaptor3d_Curve.

GeomAbs_Shape BRepAdaptor_Curve::Continuity ( ) const

virtual

Reimplemented from Adaptor3d_Curve.

const GeomAdaptor_Curve& BRepAdaptor_Curve::Curve ( ) const

Returns the Curve of the edge.

const Adaptor3d_CurveOnSurface& BRepAdaptor_Curve::CurveOnSurface ( ) const

Returns the CurveOnSurface of the edge.

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

virtual

Computes the point of parameter U.

Reimplemented from Adaptor3d_Curve.

void BRepAdaptor_Curve::D1	(	const Standard_Real	U,
		gp_Pnt &	P,
		gp_Vec &	V
	)		const

virtual

Computes the point of parameter U on the curve <br>

with its first derivative.
//! Raised if the continuity of the current interval
is not C1.

Reimplemented from Adaptor3d_Curve.

void BRepAdaptor_Curve::D2	(	const Standard_Real	U,
		gp_Pnt &	P,
		gp_Vec &	V1,
		gp_Vec &	V2
	)		const

virtual

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.

void BRepAdaptor_Curve::D3	(	const Standard_Real	U,
		gp_Pnt &	P,
		gp_Vec &	V1,
		gp_Vec &	V2,
		gp_Vec &	V3
	)		const

virtual

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.

Standard_Integer BRepAdaptor_Curve::Degree ( ) const

virtual

Reimplemented from Adaptor3d_Curve.

gp_Vec BRepAdaptor_Curve::DN	(	const Standard_Real	U,
		const Standard_Integer	N
	)		const

virtual

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.

const TopoDS_Edge& BRepAdaptor_Curve::Edge ( ) const

 Returns the edge. <br>

gp_Elips BRepAdaptor_Curve::Ellipse ( ) const

virtual

Reimplemented from Adaptor3d_Curve.

Standard_Real BRepAdaptor_Curve::FirstParameter ( ) const

virtual

Reimplemented from Adaptor3d_Curve.

GeomAbs_CurveType BRepAdaptor_Curve::GetType ( ) const

virtual

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

Reimplemented from Adaptor3d_Curve.

gp_Hypr BRepAdaptor_Curve::Hyperbola ( ) const

virtual

Reimplemented from Adaptor3d_Curve.

void BRepAdaptor_Curve::Initialize ( const TopoDS_Edge & E )

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

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

Sets the Curve <me> to acces to 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.

void BRepAdaptor_Curve::Intervals	(	TColStd_Array1OfReal &	T,
		const GeomAbs_Shape	S
	)

virtual

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

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

Reimplemented from Adaptor3d_Curve.

Standard_Boolean BRepAdaptor_Curve::Is3DCurve ( ) const

Returns True if the edge geometry is computed from
a 3D curve.

Standard_Boolean BRepAdaptor_Curve::IsClosed ( ) const

virtual

Reimplemented from Adaptor3d_Curve.

Standard_Boolean BRepAdaptor_Curve::IsCurveOnSurface ( ) const

Returns True if the edge geometry is computed from
a pcurve on a surface.

Standard_Boolean BRepAdaptor_Curve::IsPeriodic ( ) const

virtual

Reimplemented from Adaptor3d_Curve.

Standard_Boolean BRepAdaptor_Curve::IsRational ( ) const

virtual

Reimplemented from Adaptor3d_Curve.

Standard_Real BRepAdaptor_Curve::LastParameter ( ) const

virtual

Reimplemented from Adaptor3d_Curve.

gp_Lin BRepAdaptor_Curve::Line ( ) const

virtual

Reimplemented from Adaptor3d_Curve.

Standard_Integer BRepAdaptor_Curve::NbIntervals ( const GeomAbs_Shape S )

virtual

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

Reimplemented from Adaptor3d_Curve.

Standard_Integer BRepAdaptor_Curve::NbKnots ( ) const

virtual

Reimplemented from Adaptor3d_Curve.

Standard_Integer BRepAdaptor_Curve::NbPoles ( ) const

virtual

Reimplemented from Adaptor3d_Curve.

gp_Parab BRepAdaptor_Curve::Parabola ( ) const

virtual

Reimplemented from Adaptor3d_Curve.

Standard_Real BRepAdaptor_Curve::Period ( ) const

virtual

Reimplemented from Adaptor3d_Curve.

Standard_Real BRepAdaptor_Curve::Resolution ( const Standard_Real R3d ) const

virtual

returns the parametric resolution

Reimplemented from Adaptor3d_Curve.

Standard_Real BRepAdaptor_Curve::Tolerance ( ) const

 Returns the edge tolerance. <br>

Handle_Adaptor3d_HCurve BRepAdaptor_Curve::Trim	(	const Standard_Real	First,
		const Standard_Real	Last,
		const Standard_Real	Tol
	)		const

virtual

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.

const gp_Trsf& BRepAdaptor_Curve::Trsf ( ) const

Returns the coordinate system of the curve.

gp_Pnt BRepAdaptor_Curve::Value ( const Standard_Real U ) const

virtual

Computes the point of parameter U on the curve

Reimplemented from Adaptor3d_Curve.

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

BRepAdaptor_Curve.hxx

Public Member Functions

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation