GClasses::GNurbs Class Reference

Detailed Description

NURBS = Non Uniform Rational B-Spline Periodic = closed loop.

#include <GBezier.h>

Public Member Functions
	GNurbs (int nControlPoints, int nDegree, bool periodic)
	GNurbs (GNurbs *pThat)
	~GNurbs ()
GBezier *	bezier (int nInterval)
	Create a Bezier curve that exactly fits a portion of this curve. todo: what are acceptable values for nInterval? More...
void	controlPoint (G3DVector *pOutPoint, double *pOutWeight, int n)
	Returns a control point and the associated weight. More...
int	controlPointCount ()
	Returns the number of control points. More...
void	insertKnotPeriodic (int nInterval, double dRatio)
	0 <= dRatio <= 1, (for example, .5 means to insert the knot in the center of the interval) More...
double	knotInterval (int n)
void	setControlPoint (int n, G3DVector *pPoint, double weight)
	Set a control point location and its weight. More...
void	setKnotInterval (int n, double dInterval)

Protected Member Functions
void	calculateBezierControlPoint (struct GBezierPoint *pOutPoint, int nInterval, int nControlPoint)
double	knotValue (int n)
void	newKnotPeriodic (struct GBezierPoint *pA, struct GBezierPoint *pB, int n, int nControlPoint, double dRatio)
void	pointCircular (struct GBezierPoint *pOutPoint, int n)

Protected Attributes
bool	m_bPeriodic
int	m_nControlPoints
int	m_nDegree
struct GNurbsPoint *	m_pPoints

Constructor & Destructor Documentation

GClasses::GNurbs::GNurbs	(	int	nControlPoints,
		int	nDegree,
		bool	periodic
	)

GClasses::GNurbs::GNurbs

(

GNurbs *

pThat

)

GClasses::GNurbs::~GNurbs

(

)

Member Function Documentation

GBezier* GClasses::GNurbs::bezier

(

int

nInterval

)

Create a Bezier curve that exactly fits a portion of this curve. todo: what are acceptable values for nInterval?

void GClasses::GNurbs::calculateBezierControlPoint ( struct GBezierPoint *  pOutPoint, int  nInterval, int  nControlPoint  )

protected

void GClasses::GNurbs::controlPoint	(	G3DVector *	pOutPoint,
		double *	pOutWeight,
		int	n
	)

Returns a control point and the associated weight.

int GClasses::GNurbs::controlPointCount ( )

inline

Returns the number of control points.

void GClasses::GNurbs::insertKnotPeriodic	(	int	nInterval,
		double	dRatio
	)

0 <= dRatio <= 1, (for example, .5 means to insert the knot in the center of the interval)

double GClasses::GNurbs::knotInterval

(

int

n

)

double GClasses::GNurbs::knotValue ( int  n )

protected

void GClasses::GNurbs::newKnotPeriodic ( struct GBezierPoint *  pA, struct GBezierPoint *  pB, int  n, int  nControlPoint, double  dRatio  )

protected

void GClasses::GNurbs::pointCircular ( struct GBezierPoint *  pOutPoint, int  n  )

protected

void GClasses::GNurbs::setControlPoint	(	int	n,
		G3DVector *	pPoint,
		double	weight
	)

Set a control point location and its weight.

void GClasses::GNurbs::setKnotInterval	(	int	n,
		double	dInterval
	)

Member Data Documentation

bool GClasses::GNurbs::m_bPeriodic

protected

int GClasses::GNurbs::m_nControlPoints

protected

int GClasses::GNurbs::m_nDegree

protected

struct GNurbsPoint* GClasses::GNurbs::m_pPoints

protected