Root class for algorithms which convert a conic curve into a BSpline curve (CircleToBSplineCurve, EllipseToBSplineCurve, HyperbolaToBSplineCurve, ParabolaToBSplineCurve). These algorithms all work on 2D curves from the gp package and compute all the data needed to construct a BSpline curve equivalent to the conic curve. This data consists of: More...

#include <Convert_ConicToBSplineCurve.hxx>

Inheritance diagram for Convert_ConicToBSplineCurve:

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Public Member Functions
int	Degree () const
	Returns the degree of the BSpline curve whose data is computed in this framework.

int	NbPoles () const
	Returns the number of poles of the BSpline curve whose data is computed in this framework.

int	NbKnots () const
	Returns the number of knots of the BSpline curve whose data is computed in this framework.

bool	IsPeriodic () const
	Returns true if the BSpline curve whose data is computed in this framework is periodic.

gp_Pnt2d	Pole (const int theIndex) const
	Returns the pole of index Index to the poles table of the BSpline curve whose data is computed in this framework.

double	Weight (const int theIndex) const
	Returns the weight of the pole of index Index to the poles table of the BSpline curve whose data is computed in this framework.

double	Knot (const int theIndex) const
	Returns the knot of index Index to the knots table of the BSpline curve whose data is computed in this framework.

int	Multiplicity (const int theIndex) const
	Returns the multiplicity of the knot of index Index to the knots table of the BSpline curve whose data is computed in this framework.

const NCollection_Array1< gp_Pnt2d > &	Poles () const
	Returns the poles of the BSpline curve.

const NCollection_Array1< double > &	Weights () const
	Returns the weights of the BSpline curve.

const NCollection_Array1< double > &	Knots () const
	Returns the knots of the BSpline curve.

const NCollection_Array1< int > &	Multiplicities () const
	Returns the multiplicities of the BSpline curve.

void	BuildCosAndSin (const Convert_ParameterisationType theParametrisation, occ::handle< NCollection_HArray1< double > > &theCosNumerator, occ::handle< NCollection_HArray1< double > > &theSinNumerator, occ::handle< NCollection_HArray1< double > > &theDenominator, int &theDegree, occ::handle< NCollection_HArray1< double > > &theKnots, occ::handle< NCollection_HArray1< int > > &theMults) const
	Legacy API returning handle arrays for compatibility.

void	BuildCosAndSin (const Convert_ParameterisationType theParametrisation, const double theUFirst, const double theULast, occ::handle< NCollection_HArray1< double > > &theCosNumerator, occ::handle< NCollection_HArray1< double > > &theSinNumerator, occ::handle< NCollection_HArray1< double > > &theDenominator, int &theDegree, occ::handle< NCollection_HArray1< double > > &theKnots, occ::handle< NCollection_HArray1< int > > &theMults) const
	Legacy API returning handle arrays for compatibility.

Protected Member Functions
	Convert_ConicToBSplineCurve (const int theNumberOfPoles, const int theNumberOfKnots, const int theDegree)

void	BuildCosAndSin (const Convert_ParameterisationType theParametrisation, NCollection_Array1< double > &theCosNumerator, NCollection_Array1< double > &theSinNumerator, NCollection_Array1< double > &theDenominator, int &theDegree, NCollection_Array1< double > &theKnots, NCollection_Array1< int > &theMults) const

void	BuildCosAndSin (const Convert_ParameterisationType theParametrisation, const double theUFirst, const double theULast, NCollection_Array1< double > &theCosNumerator, NCollection_Array1< double > &theSinNumerator, NCollection_Array1< double > &theDenominator, int &theDegree, NCollection_Array1< double > &theKnots, NCollection_Array1< int > &theMults) const

Protected Attributes
NCollection_Array1< gp_Pnt2d >	myPoles

NCollection_Array1< double >	myWeights

NCollection_Array1< double >	myKnots

NCollection_Array1< int >	myMults

int	myDegree = 0

bool	myIsPeriodic = false

Detailed Description

Root class for algorithms which convert a conic curve into a BSpline curve (CircleToBSplineCurve, EllipseToBSplineCurve, HyperbolaToBSplineCurve, ParabolaToBSplineCurve). These algorithms all work on 2D curves from the gp package and compute all the data needed to construct a BSpline curve equivalent to the conic curve. This data consists of:

the degree of the curve,
the periodic characteristics of the curve,
a poles table with associated weights,
a knots table with associated multiplicities. The abstract class ConicToBSplineCurve provides a framework for storing and consulting this computed data.

Constructor & Destructor Documentation

◆ Convert_ConicToBSplineCurve()

Convert_ConicToBSplineCurve::Convert_ConicToBSplineCurve	(	const int	theNumberOfPoles,
		const int	theNumberOfKnots,
		const int	theDegree )

protected

Member Function Documentation

◆ BuildCosAndSin() [1/4]

void Convert_ConicToBSplineCurve::BuildCosAndSin	(	const Convert_ParameterisationType	theParametrisation,
		const double	theUFirst,
		const double	theULast,
		NCollection_Array1< double > &	theCosNumerator,
		NCollection_Array1< double > &	theSinNumerator,
		NCollection_Array1< double > &	theDenominator,
		int &	theDegree,
		NCollection_Array1< double > &	theKnots,
		NCollection_Array1< int > &	theMults ) const

protected

◆ BuildCosAndSin() [2/4]

void Convert_ConicToBSplineCurve::BuildCosAndSin	(	const Convert_ParameterisationType	theParametrisation,
		const double	theUFirst,
		const double	theULast,
		occ::handle< NCollection_HArray1< double > > &	theCosNumerator,
		occ::handle< NCollection_HArray1< double > > &	theSinNumerator,
		occ::handle< NCollection_HArray1< double > > &	theDenominator,
		int &	theDegree,
		occ::handle< NCollection_HArray1< double > > &	theKnots,
		occ::handle< NCollection_HArray1< int > > &	theMults ) const

Legacy API returning handle arrays for compatibility.

Deprecated: ("Use array-based BuildCosAndSin() overload instead")

◆ BuildCosAndSin() [3/4]

void Convert_ConicToBSplineCurve::BuildCosAndSin	(	const Convert_ParameterisationType	theParametrisation,
		NCollection_Array1< double > &	theCosNumerator,
		NCollection_Array1< double > &	theSinNumerator,
		NCollection_Array1< double > &	theDenominator,
		int &	theDegree,
		NCollection_Array1< double > &	theKnots,
		NCollection_Array1< int > &	theMults ) const

protected

◆ BuildCosAndSin() [4/4]

void Convert_ConicToBSplineCurve::BuildCosAndSin	(	const Convert_ParameterisationType	theParametrisation,
		occ::handle< NCollection_HArray1< double > > &	theCosNumerator,
		occ::handle< NCollection_HArray1< double > > &	theSinNumerator,
		occ::handle< NCollection_HArray1< double > > &	theDenominator,
		int &	theDegree,
		occ::handle< NCollection_HArray1< double > > &	theKnots,
		occ::handle< NCollection_HArray1< int > > &	theMults ) const

Legacy API returning handle arrays for compatibility.

Deprecated: ("Use array-based BuildCosAndSin() overload instead")

◆ Degree()

int Convert_ConicToBSplineCurve::Degree ( ) const

Returns the degree of the BSpline curve whose data is computed in this framework.

◆ IsPeriodic()

bool Convert_ConicToBSplineCurve::IsPeriodic ( ) const

Returns true if the BSpline curve whose data is computed in this framework is periodic.

◆ Knot()

double Convert_ConicToBSplineCurve::Knot ( const int theIndex ) const

Returns the knot of index Index to the knots table of the BSpline curve whose data is computed in this framework.

Parameters

[in] theIndex knot index (1-based)

Returns: knot at the given index

Exceptions

Standard_OutOfRange if theIndex is out of bounds

Deprecated: ("Use Knots() batch accessor instead")

◆ Knots()

const NCollection_Array1< double > & Convert_ConicToBSplineCurve::Knots ( ) const

Returns the knots of the BSpline curve.

◆ Multiplicities()

const NCollection_Array1< int > & Convert_ConicToBSplineCurve::Multiplicities ( ) const

Returns the multiplicities of the BSpline curve.

◆ Multiplicity()

int Convert_ConicToBSplineCurve::Multiplicity ( const int theIndex ) const

Returns the multiplicity of the knot of index Index to the knots table of the BSpline curve whose data is computed in this framework.

Parameters

[in] theIndex multiplicity index (1-based)

Returns: multiplicity at the given index

Exceptions

Standard_OutOfRange if theIndex is out of bounds

Deprecated: ("Use Multiplicities() batch accessor instead")

◆ NbKnots()

int Convert_ConicToBSplineCurve::NbKnots ( ) const

Returns the number of knots of the BSpline curve whose data is computed in this framework.

◆ NbPoles()

int Convert_ConicToBSplineCurve::NbPoles ( ) const

Returns the number of poles of the BSpline curve whose data is computed in this framework.

◆ Pole()

gp_Pnt2d Convert_ConicToBSplineCurve::Pole ( const int theIndex ) const

Returns the pole of index Index to the poles table of the BSpline curve whose data is computed in this framework.

Parameters

[in] theIndex pole index (1-based)

Returns: pole at the given index

Exceptions

Standard_OutOfRange if theIndex is out of bounds

Deprecated: ("Use Poles() batch accessor instead")

◆ Poles()

const NCollection_Array1< gp_Pnt2d > & Convert_ConicToBSplineCurve::Poles ( ) const

Returns the poles of the BSpline curve.

◆ Weight()

double Convert_ConicToBSplineCurve::Weight ( const int theIndex ) const

Returns the weight of the pole of index Index to the poles table of the BSpline curve whose data is computed in this framework.

Parameters

[in] theIndex weight index (1-based)

Returns: weight at the given index

Exceptions

Standard_OutOfRange if theIndex is out of bounds

Deprecated: ("Use Weights() batch accessor instead")

◆ Weights()

const NCollection_Array1< double > & Convert_ConicToBSplineCurve::Weights ( ) const

Returns the weights of the BSpline curve.

Field Documentation

◆ myDegree

int Convert_ConicToBSplineCurve::myDegree = 0

protected

◆ myIsPeriodic

bool Convert_ConicToBSplineCurve::myIsPeriodic = false

protected

◆ myKnots

NCollection_Array1<double> Convert_ConicToBSplineCurve::myKnots

protected

◆ myMults

NCollection_Array1<int> Convert_ConicToBSplineCurve::myMults

protected

◆ myPoles

NCollection_Array1<gp_Pnt2d> Convert_ConicToBSplineCurve::myPoles

protected

◆ myWeights

NCollection_Array1<double> Convert_ConicToBSplineCurve::myWeights

protected

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

Convert_ConicToBSplineCurve.hxx

Public Member Functions

Protected Member Functions

Protected Attributes

Detailed Description

Constructor & Destructor Documentation

◆ Convert_ConicToBSplineCurve()

Member Function Documentation

◆ BuildCosAndSin() [1/4]

◆ BuildCosAndSin() [2/4]

◆ BuildCosAndSin() [3/4]

◆ BuildCosAndSin() [4/4]

◆ Degree()

◆ IsPeriodic()

◆ Knot()

◆ Knots()

◆ Multiplicities()

◆ Multiplicity()

◆ NbKnots()

◆ NbPoles()

◆ Pole()

◆ Poles()

◆ Weight()

◆ Weights()

Field Documentation

◆ myDegree

◆ myIsPeriodic

◆ myKnots

◆ myMults

◆ myPoles

◆ myWeights