gf::QuadraticBezierCurve Class Reference

A quadratic Bézier curve. More...

#include <gf/Curves.h>

Inheritance diagram for gf::QuadraticBezierCurve:

Public Member Functions
	QuadraticBezierCurve (Vector2f p0, Vector2f p1, Vector2f p2, std::size_t pointCount=20)
	Constructor. More...
virtual std::size_t	getPointCount () const override
	Get the total number of points of the curve. More...
virtual Vector2f	getPoint (std::size_t index) const override
	Get a point of the curve. More...
Public Member Functions inherited from gf::Curve
	Curve ()
	Default constructor. More...
void	setType (Type type)
	Set the type of the curve. More...
Type	getType () const noexcept
	Return the type of the curve. More...
void	setColor (const Color4f &color)
	Set the fill color of the curve. More...
const Color4f &	getColor () const
	Get the fill color of the curve. More...
void	setWidth (float width)
	Set the width of the curve. More...
float	getWidth () const
	Get the width of the curve. More...
void	setOutlineColor (const Color4f &color)
	Set the outline color of the curve. More...
const Color4f &	getOutlineColor () const
	Get the outline color of the curve. More...
void	setOutlineThickness (float thickness)
	Set the thickness of the curve's outline. More...
float	getOutlineThickness () const
	Get the outline thickness of the curve. More...
RectF	getLocalBounds () const
	Get the local bounding rectangle of the entity. More...
void	setAnchor (Anchor anchor)
	Set the anchor origin of the entity. More...
VertexBuffer	commitGeometry () const
	Create a buffer with the current geometry. More...
VertexBuffer	commitOutlineGeometry () const
	Create a buffer with the current outline geometry. More...
virtual void	draw (RenderTarget &target, RenderStates states)
	Draw the object to a render target. More...
Public Member Functions inherited from gf::Transformable
	Transformable ()
	Default constructor. More...
void	setOrigin (Vector2f origin)
	Set the local origin of the object. More...
Vector2f	getOrigin () const
	Get the local origin of the object. More...
void	setPosition (Vector2f position)
	Set the position of the object. More...
Vector2f	getPosition () const
	Get the position of the object. More...
void	move (Vector2f offset)
	Move the object by a given offset. More...
void	setRotation (float angle)
	Set the orientation of the object. More...
float	getRotation () const
	Get the orientation of the object. More...
void	rotate (float angle)
	Rotate the object. More...
void	setScale (Vector2f factors)
	Set the scale factors of the object. More...
void	setScale (float factor)
	Set the scale factor of the object. More...
Vector2f	getScale () const
	Get the current scale of the object. More...
void	scale (Vector2f factors)
	Scale the object. More...
void	scale (float factor)
	Scale the object. More...
Matrix3f	getTransform () const
	Get the combined transform of the object. More...
Matrix3f	getInverseTransform () const
	Get the inverse of the combined transform of the object. More...
Public Member Functions inherited from gf::Drawable
virtual	~Drawable ()
	Virtual desctructor. More...

Additional Inherited Members
Public Types inherited from gf::Curve
enum	Type {   Simple,   Outlined }
	The type of the curve. More...
Protected Member Functions inherited from gf::Curve
void	updateGeometry ()
	Recompute the internal geometry of the curve. More...
void	setClosed (bool closed=true)
	Set the curve closed. More...
Protected Member Functions inherited from gf::Transformable
void	setOriginFromAnchorAndBounds (Anchor anchor, const RectF &bounds)
	Set the origin from an anchor and bounds. More...

Detailed Description

A quadratic Bézier curve.

A quadratic Bézier curve is a Bézier curve with two end points and one control point.

Constructor & Destructor Documentation

gf::QuadraticBezierCurve::QuadraticBezierCurve	(	Vector2f	p0,
		Vector2f	p1,
		Vector2f	p2,
		std::size_t	pointCount = 20
	)

Constructor.

Parameters

p0	The first end point
p1	The control point
p2	The second end point
pointCount	The number of points composing the curve

Member Function Documentation

virtual Vector2f gf::QuadraticBezierCurve::getPoint ( std::size_t  index ) const

overridevirtual

Get a point of the curve.

The returned point is in local coordinates, that is, the curve's transforms (position, rotation, scale) are not taken into account.

The result is undefined if index is out of the valid range.

Parameters

index

Index of the point to get, in range \( [0, n-1] \) where \( n \) is the number of points of the curve.

Returns

index-th point of the curve

See also

getPointCount()

Implements gf::Curve.

virtual std::size_t gf::QuadraticBezierCurve::getPointCount ( ) const

overridevirtual

Get the total number of points of the curve.

Returns

Number of points of the curve

See also

getPoint()

Implements gf::Curve.