BezierCurve Class Reference

Bézier curves. More...

#include <bezier.h>

Public Member Functions
	BezierCurve ()
	Empty.
	BezierCurve (const QVector< Vector > &)
	Create a Bézier curve.
	~BezierCurve ()
	Empty.
int	Degree () const
	Return the degree of the curve.
Vector	Vertex (int) const
	Return the control point.
Vector	Point (const double &) const
	Compute a point on the curve.
Vector	Tangent (const double &) const
	Compute the tangent at a given point on the curve.
Vector	Second (const double &) const
	Compute the secondary derivative a given point on the curve.
Vector	DeCasteljau (const double &) const
	Compute a point on the curve using De Casteljau's algorithm.
Box	GetBox () const
	Return the bounding box.
void	Rotate (const Matrix &)
	Rotates a patch.
void	Translate (const Vector &)
	Translation.
void	Scale (const Vector &)
	Scale.
void	Transform (const Frame &)
	Transforms the curve.

Protected Attributes
QVector< Vector >	c
	Control points.

Detailed Description

Bézier curves.

Constructor & Destructor Documentation

BezierCurve()

BezierCurve::BezierCurve ( const QVector< Vector > & c )

explicit

Create a Bézier curve.

Parameters

c	Set of control points.

Member Function Documentation

DeCasteljau()

Vector BezierCurve::DeCasteljau

(

const double &

u

)

const

Compute a point on the curve using De Casteljau's algorithm.

Parameters

u	Coordinates.

Point()

Vector BezierCurve::Point

(

const double &

u

)

const

Compute a point on the curve.

Parameters

u	Coordinates.

Rotate()

void BezierCurve::Rotate

(

const Matrix &

r

)

Rotates a patch.

Parameters

r	Rotation matrix.

Scale()

void BezierCurve::Scale

(

const Vector &

s

)

Scale.

Parameters

s	Scaling vector.

Second()

Vector BezierCurve::Second

(

const double &

u

)

const

Compute the secondary derivative a given point on the curve.

Parameters

u	Coordinates.

Tangent()

Vector BezierCurve::Tangent

(

const double &

u

)

const

Compute the tangent at a given point on the curve.

Parameters

u	Coordinates.

Transform()

void BezierCurve::Transform

(

const Frame &

frame

)

Transforms the curve.

Parameters

frame

Transformation.

Translate()

void BezierCurve::Translate

(

const Vector &

t

)

Translation.

Parameters

t	Translation vector.

Vertex()

Vector BezierCurve::Vertex ( int i ) const

inline

Return the control point.

Parameters

i

Index.