Convert_TorusToBSplineSurface Class Reference

This algorithm converts a bounded Torus into a rational B-spline surface. The torus is a Torus from package gp. The parametrization of the torus is : P (U, V) = Loc + MinorRadius * Sin(V) * Zdir + (MajorRadius+MinorRadius*Cos(V)) * (Cos(U)*Xdir + Sin(U)*Ydir) where Loc is the center of the torus, Xdir, Ydir and Zdir are the normalized directions of the local cartesian coordinate system of the Torus. The parametrization range is U [0, 2PI], V [0, 2PI]. KeyWords : Convert, Torus, BSplineSurface. More...

#include <Convert_TorusToBSplineSurface.hxx>

Inheritance diagram for Convert_TorusToBSplineSurface:

Public Member Functions
	Convert_TorusToBSplineSurface (const gp_Torus &T, const Standard_Real U1, const Standard_Real U2, const Standard_Real V1, const Standard_Real V2)
	The equivalent B-spline surface as the same orientation as the torus in the U and V parametric directions.
	Convert_TorusToBSplineSurface (const gp_Torus &T, const Standard_Real Param1, const Standard_Real Param2, const Standard_Boolean UTrim=Standard_True)
	The equivalent B-spline surface as the same orientation as the torus in the U and V parametric directions.
	Convert_TorusToBSplineSurface (const gp_Torus &T)
	The equivalent B-spline surface as the same orientation as the torus in the U and V parametric directions.
Public Member Functions inherited from Convert_ElementarySurfaceToBSplineSurface
Standard_Integer	UDegree () const
Standard_Integer	VDegree () const
	Returns the degree for the u or v parametric direction of the BSpline surface whose data is computed in this framework.
Standard_Integer	NbUPoles () const
Standard_Integer	NbVPoles () const
	Returns the number of poles for the u or v parametric direction of the BSpline surface whose data is computed in this framework.
Standard_Integer	NbUKnots () const
Standard_Integer	NbVKnots () const
	Returns the number of knots for the u or v parametric direction of the BSpline surface whose data is computed in this framework .
Standard_Boolean	IsUPeriodic () const
Standard_Boolean	IsVPeriodic () const
	Returns true if the BSpline surface whose data is computed in this framework is periodic in the u or v parametric direction.
gp_Pnt	Pole (const Standard_Integer UIndex, const Standard_Integer VIndex) const
	Returns the pole of index (UIndex,VIndex) to the poles table of the BSpline surface whose data is computed in this framework. Exceptions Standard_OutOfRange if, for the BSpline surface whose data is computed in this framework:
Standard_Real	Weight (const Standard_Integer UIndex, const Standard_Integer VIndex) const
	Returns the weight of the pole of index (UIndex,VIndex) to the poles table of the BSpline surface whose data is computed in this framework. Exceptions Standard_OutOfRange if, for the BSpline surface whose data is computed in this framework:
Standard_Real	UKnot (const Standard_Integer UIndex) const
	Returns the U-knot of range UIndex. Raised if UIndex < 1 or UIndex > NbUKnots.
Standard_Real	VKnot (const Standard_Integer UIndex) const
	Returns the V-knot of range VIndex. Raised if VIndex < 1 or VIndex > NbVKnots.
Standard_Integer	UMultiplicity (const Standard_Integer UIndex) const
	Returns the multiplicity of the U-knot of range UIndex. Raised if UIndex < 1 or UIndex > NbUKnots.
Standard_Integer	VMultiplicity (const Standard_Integer VIndex) const
	Returns the multiplicity of the V-knot of range VIndex. Raised if VIndex < 1 or VIndex > NbVKnots.

Additional Inherited Members
Protected Member Functions inherited from Convert_ElementarySurfaceToBSplineSurface
	Convert_ElementarySurfaceToBSplineSurface (const Standard_Integer NumberOfUPoles, const Standard_Integer NumberOfVPoles, const Standard_Integer NumberOfUKnots, const Standard_Integer NumberOfVKnots, const Standard_Integer UDegree, const Standard_Integer VDegree)
Protected Attributes inherited from Convert_ElementarySurfaceToBSplineSurface
TColgp_Array2OfPnt	poles
TColStd_Array2OfReal	weights
TColStd_Array1OfReal	uknots
TColStd_Array1OfInteger	umults
TColStd_Array1OfReal	vknots
TColStd_Array1OfInteger	vmults
Standard_Integer	udegree
Standard_Integer	vdegree
Standard_Integer	nbUPoles
Standard_Integer	nbVPoles
Standard_Integer	nbUKnots
Standard_Integer	nbVKnots
Standard_Boolean	isuperiodic
Standard_Boolean	isvperiodic

Detailed Description

This algorithm converts a bounded Torus into a rational B-spline surface. The torus is a Torus from package gp. The parametrization of the torus is : P (U, V) = Loc + MinorRadius * Sin(V) * Zdir + (MajorRadius+MinorRadius*Cos(V)) * (Cos(U)*Xdir + Sin(U)*Ydir) where Loc is the center of the torus, Xdir, Ydir and Zdir are the normalized directions of the local cartesian coordinate system of the Torus. The parametrization range is U [0, 2PI], V [0, 2PI]. KeyWords : Convert, Torus, BSplineSurface.

Constructor & Destructor Documentation

Convert_TorusToBSplineSurface() [1/3]

Convert_TorusToBSplineSurface::Convert_TorusToBSplineSurface	(	const gp_Torus &	T,
		const Standard_Real	U1,
		const Standard_Real	U2,
		const Standard_Real	V1,
		const Standard_Real	V2 )

The equivalent B-spline surface as the same orientation as the torus in the U and V parametric directions.

Raised if U1 = U2 or U1 = U2 + 2.0 * Pi Raised if V1 = V2 or V1 = V2 + 2.0 * Pi

Convert_TorusToBSplineSurface() [2/3]

Convert_TorusToBSplineSurface::Convert_TorusToBSplineSurface	(	const gp_Torus &	T,
		const Standard_Real	Param1,
		const Standard_Real	Param2,
		const Standard_Boolean	UTrim = Standard_True )

The equivalent B-spline surface as the same orientation as the torus in the U and V parametric directions.

Raised if Param1 = Param2 or Param1 = Param2 + 2.0 * Pi

Convert_TorusToBSplineSurface() [3/3]

Convert_TorusToBSplineSurface::Convert_TorusToBSplineSurface

(

const gp_Torus &

T

)

The equivalent B-spline surface as the same orientation as the torus in the U and V parametric directions.

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

• Convert_TorusToBSplineSurface.hxx