ON_PolynomialCurve Class Reference

#include <opennurbs_bezier.h>

Public Member Functions
	ON_PolynomialCurve ()
	ON_PolynomialCurve (int dim, bool bIsRational, int order)
	See ON_PolynomialCurve::Create. More...
	ON_PolynomialCurve (const ON_PolynomialCurve &)
	ON_PolynomialCurve (const ON_BezierCurve &)
	~ON_PolynomialCurve ()
bool	Create (int dim, bool bIsRational, int order)
	Initializes fields and allocates the m_cv array. More...
void	Destroy ()
	Deallocates the m_cv array and sets fields to zero. More...
bool	Evaluate (double t, int der_count, int v_stride, double *v) const
	Evaluate a polynomial curve. More...
ON_PolynomialCurve &	operator= (const ON_PolynomialCurve &)
ON_PolynomialCurve &	operator= (const ON_BezierCurve &)

Public Attributes
ON_4dPointArray	m_cv
	coefficients ( m_cv.Count() = order of monomial ) More...
int	m_dim
	dimension of polynomial curve (1,2, or 3) More...
ON_Interval	m_domain
	domain of polynomial More...
int	m_is_rat
	1 if polynomial curve is rational, 0 if polynomial curve is not rational More...
int	m_order
	order (=degree+1) of polynomial More...

Constructor & Destructor Documentation

ON_PolynomialCurve() [1/4]

ON_PolynomialCurve::ON_PolynomialCurve

(

)

ON_PolynomialCurve() [2/4]

ON_PolynomialCurve::ON_PolynomialCurve	(	int	dim,
		bool	bIsRational,
		int	order
	)

See ON_PolynomialCurve::Create.

Parameters

dim	[in] dimension of the curve
bIsRational	[in] true if rational
order	[in] (>=2) order = degree+1

~ON_PolynomialCurve()

ON_PolynomialCurve::~ON_PolynomialCurve

(

)

ON_PolynomialCurve() [3/4]

ON_PolynomialCurve::ON_PolynomialCurve

(

const ON_PolynomialCurve &

)

ON_PolynomialCurve() [4/4]

ON_PolynomialCurve::ON_PolynomialCurve

(

const ON_BezierCurve &

)

Member Function Documentation

Create()

bool ON_PolynomialCurve::Create	(	int	dim,
		bool	bIsRational,
		int	order
	)

Initializes fields and allocates the m_cv array.

Parameters

dim	[in] dimension of the curve
bIsRational	[in] true if rational
order	[in] (>=2) order = degree+1

Destroy()

void ON_PolynomialCurve::Destroy

(

)

Deallocates the m_cv array and sets fields to zero.

Evaluate()

bool ON_PolynomialCurve::Evaluate	(	double	t,
		int	der_count,
		int	v_stride,
		double *	v
	)		const

Evaluate a polynomial curve.

Parameters

t	[in] evaluation parameter ( usually in Domain() ).
der_count	[in] (>=0) number of derivatives to evaluate
v_stride	[in] (>=Dimension()) stride to use for the v[] array
v	[out] array of length (der_count+1)*v_stride curve(t) is returned in (v[0],...,v[m_dim-1]), curve'(t) is retuned in (v[v_stride],...,v[v_stride+m_dim-1]), curve"(t) is retuned in (v[2*v_stride],...,v[2*v_stride+m_dim-1]), etc.

Returns

false if unable to evaluate.

operator=() [1/2]

ON_PolynomialCurve& ON_PolynomialCurve::operator=

(

const ON_PolynomialCurve &

)

operator=() [2/2]

ON_PolynomialCurve& ON_PolynomialCurve::operator=

(

const ON_BezierCurve &

)

Member Data Documentation

m_cv

ON_4dPointArray ON_PolynomialCurve::m_cv

coefficients ( m_cv.Count() = order of monomial )

m_dim

int ON_PolynomialCurve::m_dim

dimension of polynomial curve (1,2, or 3)

m_domain

ON_Interval ON_PolynomialCurve::m_domain

domain of polynomial

m_is_rat

int ON_PolynomialCurve::m_is_rat

1 if polynomial curve is rational, 0 if polynomial curve is not rational

m_order

int ON_PolynomialCurve::m_order

order (=degree+1) of polynomial