bezier Namespace Reference [Bezier Curves]

Classes
struct	curve_t
	paramaterized bezier curve More...
struct	control_points_t
	bezier curve specified by control points More...
struct	fit_t
struct	quad_bezier_t
	quadratic bezier curve More...
Typedefs
typedef point2d_t< float >	point_t
typedef rect2d_t< float >	rect_t
typedef std::vector< point_t >	vec_point_t
typedef std::vector < quad_bezier_t >	quad_path_t
typedef std::vector< curve_t >	path_t
typedef path_t	cubic_path_t
Functions
static int	findRoots (IN float a, IN float b, IN float c, OUT float *roots) throw ()
static void	checkBoundaries (IO float &min, IO float &max, IN float value) throw ()
void	getRect (IN const curve_t &curve, OUT rect_t &rect) throw ()
void	scale (IO curve_t &curve, IN float factor) throw ()
static float	writeVal (IN float x, IN float eps) throw ()
void	write (IN const curve_t &curve, OUT std::string &value, IN float eps) throw ()
void	read (IN const char *value, OUT curve_t &curve)
void	getCurveFromControlPoints (IN const control_points_t &cp, OUT curve_t &b) throw ()
void	getControlPointsFromCurve (IN const curve_t &b, OUT control_points_t &cp) throw ()
static point_t	getTangent (IN const point_t *p, IN int nPoints, IN int i) throw ()
void	getQuadPathFromRawPoints (IN const point_t *p, IN int nPoints, IN float ds, OUT quad_path_t &path)
	given a set of points, return the best fit path of quadratic beziers
void	getCubicPathFromRawPoints (IN const point_t *in_p, IN int nPoints, IN float ds, OUT cubic_path_t &path)
static void	getCubic (IN float x1, IN float x2, IN float x3, OUT float &a, OUT float &b, OUT float &c) throw ()
static void	leastSquaresFit (IN const point_t *p, IN int nPoints, IN const point_t &q, IN const point_t &r, OUT control_points_t &cp) throw ()
static void	getQR (IN const point_t *p, IN int nPoints, OUT point_t &q, OUT point_t &r) throw ()
void	addPathSegments (IN const point_t *p, IN const point_t &q, IN const point_t &r, IN int nPoints, IN float tolerance, IO path_t &path)
void	fitPoints (IN const float *x, IN int nPoints, IN float slope, OUT fit_t &fit) throw ()
int	getCuspIndices (IN const point_t *p, IN int nPoints, OUT int **cusps)
float	getFitQuality (IN const point_t *p, IN int nPoints, IN const curve_t &curve) throw ()
void	fitPath (IN const point_t *p, IN int nPoints, IN float tolerance, OUT path_t &path)
void	respacePath (IN const point_t *p, IN int nPoints, IN float dt, OUT point_t **out_p, OUT int &newPoints)
float	getCoefficient (IN const float *x, IN int nPoints, IN int degree) throw ()
void	removeCoefficient (IO float *x, IN int nPoints, IN float coeff, IN int degree) throw ()
Variables
static const float	s_eps = 1.0e-8

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Typedef Documentation

typedef point2d_t<float> bezier::point_t

Definition at line 62 of file bezier.h.

typedef std::vector<point_t> bezier::vec_point_t

Definition at line 38 of file fit.cpp.

typedef std::vector<quad_bezier_t> bezier::quad_path_t

Definition at line 57 of file fit.h.

typedef std::vector<curve_t> bezier::path_t

Definition at line 73 of file fit.h.

typedef path_t bezier::cubic_path_t

Definition at line 75 of file fit.h.

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Function Documentation

static int bezier::findRoots	(	IN float	a,
		IN float	b,
		IN float	c,
		OUT float *	roots
	)			throw () [static]

Definition at line 54 of file bezier.cpp.

static void bezier::checkBoundaries	(	IO float &	min,
		IO float &	max,
		IN float	value
	)			throw () [static]

Definition at line 115 of file bezier.cpp.

static float bezier::writeVal	(	IN float	x,
		IN float	eps
	)			throw () [static]

Definition at line 217 of file bezier.cpp.

static point_t bezier::getTangent	(	IN const point_t *	p,
		IN int	nPoints,
		IN int	i
	)			throw () [static]

Definition at line 48 of file fit.cpp.

void bezier::getQuadPathFromRawPoints	(	IN const point_t *	in_p,
		IN int	nPoints,
		IN float	ds,
		OUT quad_path_t &	path
	)

given a set of points, return the best fit path of quadratic beziers

void bezier::getCubicPathFromRawPoints	(	IN const point_t *	in_p,
		IN int	nPoints,
		IN float	ds,
		OUT cubic_path_t &	path
	)

static void bezier::getCubic	(	IN float	x1,
		IN float	x2,
		IN float	x3,
		OUT float &	a,
		OUT float &	b,
		OUT float &	c
	)			throw () [static]

Definition at line 213 of file fit.cpp.

static void bezier::leastSquaresFit	(	IN const point_t *	p,
		IN int	nPoints,
		IN const point_t &	q,
		IN const point_t &	r,
		OUT control_points_t &	cp
	)			throw () [static]

Definition at line 239 of file fit.cpp.

static void bezier::getQR	(	IN const point_t *	p,
		IN int	nPoints,
		OUT point_t &	q,
		OUT point_t &	r
	)			throw () [static]

Definition at line 369 of file fit.cpp.

void bezier::addPathSegments	(	IN const point_t *	p,
		IN const point_t &	q,
		IN const point_t &	r,
		IN int	nPoints,
		IN float	tolerance,
		IO path_t &	path
	)

Definition at line 391 of file fit.cpp.

void bezier::fitPoints	(	IN const float *	x,
		IN int	nPoints,
		IN float	slope,
		OUT fit_t &	fit
	)			throw ()

int bezier::getCuspIndices	(	IN const point_t *	p,
		IN int	nPoints,
		OUT int **	cusps
	)

float bezier::getFitQuality	(	IN const point_t *	p,
		IN int	nPoints,
		IN const curve_t &	curve
	)			throw ()

void bezier::fitPath	(	IN const point_t *	p,
		IN int	nPoints,
		IN float	tolerance,
		OUT path_t &	path
	)

void bezier::respacePath	(	IN const point_t *	p,
		IN int	nPoints,
		IN float	dt,
		OUT point_t **	out_p,
		OUT int &	newPoints
	)

float bezier::getCoefficient	(	IN const float *	x,
		IN int	nPoints,
		IN int	degree
	)			throw ()

void bezier::removeCoefficient	(	IO float *	x,
		IN int	nPoints,
		IN float	coeff,
		IN int	degree
	)			throw ()

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Variable Documentation

const float bezier::s_eps = 1.0e-8 [static]

Definition at line 39 of file bezier.cpp.