Approx_CurveOnSurface Class Reference

Approximation of curve on surface. More...

#include <Approx_CurveOnSurface.hxx>

Public Member Functions
	Approx_CurveOnSurface (const Handle< Adaptor2d_Curve2d > &C2D, const Handle< Adaptor3d_Surface > &Surf, const Standard_Real First, const Standard_Real Last, const Standard_Real Tol, const GeomAbs_Shape Continuity, const Standard_Integer MaxDegree, const Standard_Integer MaxSegments, const Standard_Boolean Only3d=Standard_False, const Standard_Boolean Only2d=Standard_False)
	This constructor calls perform method. This constructor is deprecated.
	Approx_CurveOnSurface (const Handle< Adaptor2d_Curve2d > &theC2D, const Handle< Adaptor3d_Surface > &theSurf, const Standard_Real theFirst, const Standard_Real theLast, const Standard_Real theTol)
	This constructor does not call perform method.
Standard_Boolean	IsDone () const
Standard_Boolean	HasResult () const
Handle< Geom_BSplineCurve >	Curve3d () const
Standard_Real	MaxError3d () const
Handle< Geom2d_BSplineCurve >	Curve2d () const
Standard_Real	MaxError2dU () const
Standard_Real	MaxError2dV () const
	returns the maximum errors relatively to the U component or the V component of the 2d Curve
void	Perform (const Standard_Integer theMaxSegments, const Standard_Integer theMaxDegree, const GeomAbs_Shape theContinuity, const Standard_Boolean theOnly3d=Standard_False, const Standard_Boolean theOnly2d=Standard_False)
	Constructs the 3d curve. Input parameters are ignored when the input curve is U-isoline or V-isoline.

Protected Member Functions
Standard_Boolean	isIsoLine (const Handle< Adaptor2d_Curve2d > &theC2D, Standard_Boolean &theIsU, Standard_Real &theParam, Standard_Boolean &theIsForward) const
	Checks whether the 2d curve is a isoline. It can be represented by b-spline, bezier, or geometric line. This line should have natural parameterization.
Standard_Boolean	buildC3dOnIsoLine (const Handle< Adaptor2d_Curve2d > &theC2D, const Standard_Boolean theIsU, const Standard_Real theParam, const Standard_Boolean theIsForward)
	Builds 3D curve for a isoline. This method takes corresponding isoline from the input surface.

Detailed Description

Approximation of curve on surface.

Constructor & Destructor Documentation

Approx_CurveOnSurface() [1/2]

Approx_CurveOnSurface::Approx_CurveOnSurface	(	const Handle< Adaptor2d_Curve2d > &	C2D,
		const Handle< Adaptor3d_Surface > &	Surf,
		const Standard_Real	First,
		const Standard_Real	Last,
		const Standard_Real	Tol,
		const GeomAbs_Shape	Continuity,
		const Standard_Integer	MaxDegree,
		const Standard_Integer	MaxSegments,
		const Standard_Boolean	Only3d = Standard_False,
		const Standard_Boolean	Only2d = Standard_False
	)

This constructor calls perform method. This constructor is deprecated.

Deprecated:

("This constructor is deprecated. Use other constructor and perform method instead.")

Approx_CurveOnSurface() [2/2]

Approx_CurveOnSurface::Approx_CurveOnSurface	(	const Handle< Adaptor2d_Curve2d > &	theC2D,
		const Handle< Adaptor3d_Surface > &	theSurf,
		const Standard_Real	theFirst,
		const Standard_Real	theLast,
		const Standard_Real	theTol
	)

This constructor does not call perform method.

Parameters

theC2D	2D Curve to be approximated in 3D.
theSurf	Surface where 2D curve is located.
theFirst	First parameter of resulting curve.
theFirst	Last parameter of resulting curve.
theTol	Computation tolerance.

Member Function Documentation

buildC3dOnIsoLine()

Standard_Boolean Approx_CurveOnSurface::buildC3dOnIsoLine ( const Handle< Adaptor2d_Curve2d > &  theC2D, const Standard_Boolean  theIsU, const Standard_Real  theParam, const Standard_Boolean  theIsForward  )

protected

Builds 3D curve for a isoline. This method takes corresponding isoline from the input surface.

Parameters

theC2D	Trimmed curve to be approximated.
theIsU	Flag indicating that line is u const.
theParam	Line parameter.
theIsForward	Flag indicating forward parameterization on a isoline.

Returns

Standard_True when 3d curve is built and Standard_False otherwise.

Curve2d()

Handle< Geom2d_BSplineCurve > Approx_CurveOnSurface::Curve2d

(

)

const

Curve3d()

Handle< Geom_BSplineCurve > Approx_CurveOnSurface::Curve3d

(

)

const

HasResult()

Standard_Boolean Approx_CurveOnSurface::HasResult

(

)

const

IsDone()

Standard_Boolean Approx_CurveOnSurface::IsDone

(

)

const

isIsoLine()

Standard_Boolean Approx_CurveOnSurface::isIsoLine ( const Handle< Adaptor2d_Curve2d > &  theC2D, Standard_Boolean &  theIsU, Standard_Real &  theParam, Standard_Boolean &  theIsForward  ) const

protected

Checks whether the 2d curve is a isoline. It can be represented by b-spline, bezier, or geometric line. This line should have natural parameterization.

Parameters

theC2D	Trimmed curve to be checked.
theIsU	Flag indicating that line is u const.
theParam	Line parameter.
theIsForward	Flag indicating forward parameterization on a isoline.

Returns

Standard_True when 2d curve is a line and Standard_False otherwise.

MaxError2dU()

Standard_Real Approx_CurveOnSurface::MaxError2dU

(

)

const

MaxError2dV()

Standard_Real Approx_CurveOnSurface::MaxError2dV

(

)

const

returns the maximum errors relatively to the U component or the V component of the 2d Curve

MaxError3d()

Standard_Real Approx_CurveOnSurface::MaxError3d

(

)

const

Perform()

void Approx_CurveOnSurface::Perform	(	const Standard_Integer	theMaxSegments,
		const Standard_Integer	theMaxDegree,
		const GeomAbs_Shape	theContinuity,
		const Standard_Boolean	theOnly3d = Standard_False,
		const Standard_Boolean	theOnly2d = Standard_False
	)

Constructs the 3d curve. Input parameters are ignored when the input curve is U-isoline or V-isoline.

Parameters

theMaxSegments	Maximal number of segments in the resulting spline.
theMaxDegree	Maximal degree of the result.
theContinuity	Resulting continuity.
theOnly3d	Determines building only 3D curve.
theOnly2d	Determines building only 2D curve.

---

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

• Approx_CurveOnSurface.hxx