GeomAPI_BSpline2d Class Reference

B-spline curve in 2D. More...

#include <GeomAPI_BSpline2d.h>

Inheritance diagram for GeomAPI_BSpline2d:

Public Member Functions
GEOMAPI_EXPORT	GeomAPI_BSpline2d (const std::list< std::shared_ptr< GeomAPI_Pnt2d > > &thePoles, const std::list< double > &theWeights, const bool thePeriodic=false)
	Creation of B-spline curve defined by list of poles and weights. More...
GEOMAPI_EXPORT	GeomAPI_BSpline2d (const int theDegree, const std::list< std::shared_ptr< GeomAPI_Pnt2d > > &thePoles, const std::list< double > &theWeights, const std::list< double > &theKnots=std::list< double >(), const std::list< int > &theMults=std::list< int >(), const bool thePeriodic=false)
	Creation of B-spline curve defined by list of poles and weights. More...
GEOMAPI_EXPORT bool	isNull () const
	Returns true if curve is not initialized. More...
GEOMAPI_EXPORT int	degree () const
	Returns degree of the curve. More...
GEOMAPI_EXPORT std::list< double >	knots () const
	Knots of the curve. More...
GEOMAPI_EXPORT std::list< int >	mults () const
	Multiplicities of the knots. More...
GEOMAPI_EXPORT const bool	parameter (const std::shared_ptr< GeomAPI_Pnt2d > thePoint, const double theTolerance, double &theParameter) const
	Computes the parameter of a given point on a circle. More...
GEOMAPI_EXPORT void	D0 (const double theU, std::shared_ptr< GeomAPI_Pnt2d > &thePoint)
	Calculate point on B-spline curve according to the given parameter. More...
GEOMAPI_EXPORT void	D1 (const double theU, std::shared_ptr< GeomAPI_Pnt2d > &thePoint, std::shared_ptr< GeomAPI_XY > &theDerivative)
	Calculate point and first derivative for B-spline curve according to the given parameter. More...
template<class T >
T *	implPtr ()
	Returns the pointer to the impl. More...
template<class T >
const T *	implPtr () const
	Returns the pointer to the impl. More...
template<class T >
const T &	impl () const
	Returns the reference object of the impl. More...
template<class T >
void	setImpl (T *theImpl)
	Updates the impl (deletes the old one) More...
GEOMAPI_EXPORT bool	empty () const
	Returns true if the impl is empty. More...

Detailed Description

B-spline curve in 2D.

Constructor & Destructor Documentation

GeomAPI_BSpline2d() [1/2]

GeomAPI_BSpline2d::GeomAPI_BSpline2d	(	const std::list< std::shared_ptr< GeomAPI_Pnt2d > > &	thePoles,
		const std::list< double > &	theWeights,
		const bool	thePeriodic = false
	)

Creation of B-spline curve defined by list of poles and weights.

GeomAPI_BSpline2d() [2/2]

GeomAPI_BSpline2d::GeomAPI_BSpline2d	(	const int	theDegree,
		const std::list< std::shared_ptr< GeomAPI_Pnt2d > > &	thePoles,
		const std::list< double > &	theWeights,
		const std::list< double > &	theKnots = std::list<double>(),
		const std::list< int > &	theMults = std::list<int>(),
		const bool	thePeriodic = false
	)

Creation of B-spline curve defined by list of poles and weights.

Member Function Documentation

isNull()

bool GeomAPI_BSpline2d::isNull

(

)

const

Returns true if curve is not initialized.

degree()

int GeomAPI_BSpline2d::degree

(

)

const

Returns degree of the curve.

knots()

std::list< double > GeomAPI_BSpline2d::knots

(

)

const

Knots of the curve.

mults()

std::list< int > GeomAPI_BSpline2d::mults

(

)

const

Multiplicities of the knots.

parameter()

const bool GeomAPI_BSpline2d::parameter	(	const std::shared_ptr< GeomAPI_Pnt2d >	thePoint,
		const double	theTolerance,
		double &	theParameter
	)		const

Computes the parameter of a given point on a circle.

The point must be located either on the circle itself or relatively to the latter at a distance less than the tolerance value. Return FALSE if the point is beyond the tolerance limit or if computation fails. Max Tolerance value is currently limited to 1.e-4

Parameters

[in]	thePoint	point of origin.
[in]	theTolerance	tolerance of computation.
[out]	theParameter	resulting parameter.

D0()

void GeomAPI_BSpline2d::D0	(	const double	theU,
		std::shared_ptr< GeomAPI_Pnt2d > &	thePoint
	)

Calculate point on B-spline curve according to the given parameter.

D1()

void GeomAPI_BSpline2d::D1	(	const double	theU,
		std::shared_ptr< GeomAPI_Pnt2d > &	thePoint,
		std::shared_ptr< GeomAPI_XY > &	theDerivative
	)

Calculate point and first derivative for B-spline curve according to the given parameter.

implPtr() [1/2]

template<class T >

T * GeomAPI_Interface::implPtr ( )

inlineinherited

Returns the pointer to the impl.

implPtr() [2/2]

template<class T >

const T * GeomAPI_Interface::implPtr ( ) const

inlineinherited

Returns the pointer to the impl.

impl()

template<class T >

const T & GeomAPI_Interface::impl ( ) const

inlineinherited

Returns the reference object of the impl.

setImpl()

template<class T >

void GeomAPI_Interface::setImpl ( T *  theImpl )

inlineinherited

Updates the impl (deletes the old one)

empty()

bool GeomAPI_Interface::empty ( ) const

inherited

Returns true if the impl is empty.