gf::Rotation Struct Reference

A rotation. More...

#include <gf/Transform.h>

Public Member Functions
	Rotation ()
	Default constructor. More...
	Rotation (float angle)
	Constructor with an angle. More...
void	setAngle (float angle)
	Set the rotation angle. More...
float	getAngle () const
	Get the rotation angle. More...

Public Attributes
float	cos
	The cosine of the rotation angle. More...
float	sin
	The sine of the rotation angle. More...

Related Functions
(Note that these are not member functions.)
constexpr Vector2f	transform (const Rotation &rotation, Vector2f point)
	Apply a rotation to a 2D point. More...
constexpr Vector2f	inverseTransform (const Rotation &rotation, Vector2f point)
	Apply an inverse rotation to a 2D point. More...

Detailed Description

A rotation.

See also

gf::Translation, gf::Transform

Constructor & Destructor Documentation

Rotation() [1/2]

gf::Rotation::Rotation ( )

inline

Default constructor.

The default rotation is a rotation of angle \( 0 \).

Rotation() [2/2]

gf::Rotation::Rotation ( float  angle )

inline

Constructor with an angle.

Parameters

angle

The rotation angle

Member Function Documentation

getAngle()

float gf::Rotation::getAngle ( ) const

inline

Get the rotation angle.

Returns

The current rotation angle

setAngle()

void gf::Rotation::setAngle ( float  angle )

inline

Set the rotation angle.

Parameters

angle

The new rotation angle

Friends And Related Function Documentation

inverseTransform()

constexpr Vector2f inverseTransform ( const Rotation &  rotation, Vector2f  point  )

related

Apply an inverse rotation to a 2D point.

Parameters

rotation	The rotation
point	The point to transform

Returns

The transformed point

transform()

constexpr Vector2f transform ( const Rotation &  rotation, Vector2f  point  )

related

Apply a rotation to a 2D point.

Parameters

rotation	The rotation
point	The point to transform

Returns

The transformed point

Member Data Documentation

cos

float gf::Rotation::cos

The cosine of the rotation angle.

sin

float gf::Rotation::sin

The sine of the rotation angle.