#include <CCGeometry.h>

Public Member Functions
	CCPoint ()
	CCPoint ()
	CCPoint (float x, float y)
	CCPoint ( local x, local y)
	CCPoint (const CCPoint &other)
	CCPoint (const CCSize &size)
CCPoint &	operator= (const CCPoint &other)
CCPoint &	operator= (const CCSize &size)
CCPoint	operator+ (const CCPoint &right) const
CCPoint	operator- (const CCPoint &right) const
CCPoint	operator- () const
CCPoint	operator* (float a) const
CCPoint	operator/ (float a) const
void	setPoint (float x, float y)
bool	equals (const CCPoint &target) const
bool	fuzzyEquals (const CCPoint &target, float variance) const
float	getLength () const
	Calculates distance between point an origin. More...

float	getLengthSq () const
	Calculates the square length of a CCPoint (not calling sqrt() ) More...

float	getDistanceSq (const CCPoint &other) const
	Calculates the square distance between two points (not calling sqrt() ) More...

local	getDistanceSq ( local other)
	Calculates the square distance between two points (not calling sqrt() ) More...

float	getDistance (const CCPoint &other) const
	Calculates the distance between two points. More...

float	getAngle () const
float	getAngle (const CCPoint &other) const
local	getAngle ( local other)
float	dot (const CCPoint &other) const
	Calculates dot product of two points. More...

local	dot ( local other)
	Calculates dot product of two points. More...

float	cross (const CCPoint &other) const
	Calculates cross product of two points. More...

local	cross ( local other)
	Calculates cross product of two points. More...

CCPoint	getPerp () const
	Calculates perpendicular of v, rotated 90 degrees counter-clockwise – cross(v, perp(v)) >= 0. More...

CCPoint	getRPerp () const
	Calculates perpendicular of v, rotated 90 degrees clockwise – cross(v, rperp(v)) <= 0. More...

CCPoint	project (const CCPoint &other) const
	Calculates the projection of this over other. More...

local	project ( local other)
	Calculates the projection of this over other. More...

CCPoint	rotate (const CCPoint &other) const
	Complex multiplication of two points ("rotates" two points). More...

local	rotate ( local other)
	Complex multiplication of two points ("rotates" two points). More...

CCPoint	unrotate (const CCPoint &other) const
	Unrotates two points. More...

local	unrotate ( local other)
	Unrotates two points. More...

CCPoint	normalize () const
	Returns point multiplied to a length of 1. More...

CCPoint	lerp (const CCPoint &other, float alpha) const
	Linear Interpolation between two points a and b. More...

local	lerp ( local other, local alpha)
	Linear Interpolation between two points a and b. More...

CCPoint	rotateByAngle (const CCPoint &pivot, float angle) const
	Rotates a point counter clockwise by the angle around a pivot. More...

Static Public Member Functions
static CCPoint	forAngle (const float a)

Public Attributes
float	x
local	x
float	y
local	y

Constructor & Destructor Documentation

CCPoint ( )

local CCPoint ( )

CCPoint	(	float	x,
		float	y
	)

local CCPoint	(	local	x,
		local	y
	)

CCPoint ( const CCPoint & other )

CCPoint ( const CCSize & size )

Member Function Documentation

float cross ( const CCPoint & other ) const

inline

Calculates cross product of two points.

Returns: float

Since: v2.1.4

local cross ( local other )

inline

Calculates cross product of two points.

Returns: float

Since: v2.1.4

float dot ( const CCPoint & other ) const

inline

Calculates dot product of two points.

Returns: float

Since: v2.1.4

local dot ( local other )

inline

Calculates dot product of two points.

Returns: float

Since: v2.1.4

bool equals ( const CCPoint & target ) const

local equals ( local target )

static CCPoint forAngle ( const float a )

inlinestatic

local forAngle ( local a )

inlinestatic

bool fuzzyEquals	(	const CCPoint &	target,
		float	variance
	)		const

Returns: if points have fuzzy equality which means equal with some degree of variance.

Since: v2.1.4

float getAngle ( ) const

inline

Returns: the angle in radians between this vector and the x axis

Since: v2.1.4

local getAngle ( )

inline

Returns: the angle in radians between this vector and the x axis

Since: v2.1.4

float getAngle ( const CCPoint & other ) const

Returns: the angle in radians between two vector directions

Since: v2.1.4

local getAngle ( local other )

Returns: the angle in radians between two vector directions

Since: v2.1.4

float getDistance ( const CCPoint & other ) const

inline

Calculates the distance between two points.

Returns: float

Since: v2.1.4

local getDistance ( local other )

inline

Calculates the distance between two points.

Returns: float

Since: v2.1.4

float getDistanceSq ( const CCPoint & other ) const

inline

Calculates the square distance between two points (not calling sqrt() )

Returns: float

Since: v2.1.4

local getDistanceSq ( local other )

inline

Calculates the square distance between two points (not calling sqrt() )

Returns: float

Since: v2.1.4

float getLength ( ) const

inline

Calculates distance between point an origin.

Returns: float

Since: v2.1.4

float getLengthSq ( ) const

inline

Calculates the square length of a CCPoint (not calling sqrt() )

Returns: float

Since: v2.1.4

CCPoint getPerp ( ) const

inline

Calculates perpendicular of v, rotated 90 degrees counter-clockwise – cross(v, perp(v)) >= 0.

Returns: CCPoint

Since: v2.1.4

local getPerp ( )

inline

Calculates perpendicular of v, rotated 90 degrees counter-clockwise – cross(v, perp(v)) >= 0.

Returns: CCPoint

Since: v2.1.4

CCPoint getRPerp ( ) const

inline

Calculates perpendicular of v, rotated 90 degrees clockwise – cross(v, rperp(v)) <= 0.

Returns: CCPoint

Since: v2.1.4

local getRPerp ( )

inline

Calculates perpendicular of v, rotated 90 degrees clockwise – cross(v, rperp(v)) <= 0.

Returns: CCPoint

Since: v2.1.4

CCPoint lerp	(	const CCPoint &	other,
		float	alpha
	)		const

inline

Linear Interpolation between two points a and b.

Returns: alpha == 0 ? a alpha == 1 ? b otherwise a value between a..b

Since: v2.1.4

local lerp	(	local	other,
		local	alpha
	)

inline

Linear Interpolation between two points a and b.

Returns: alpha == 0 ? a alpha == 1 ? b otherwise a value between a..b

Since: v2.1.4

CCPoint normalize ( ) const

inline

Returns point multiplied to a length of 1.

If the point is 0, it returns (1, 0)

Returns: CCPoint

Since: v2.1.4

local normalize ( )

inline

Returns point multiplied to a length of 1.

If the point is 0, it returns (1, 0)

Returns: CCPoint

Since: v2.1.4

CCPoint operator* ( float a ) const

CCPoint operator+ ( const CCPoint & right ) const

CCPoint operator- ( const CCPoint & right ) const

CCPoint operator- ( ) const

CCPoint operator/ ( float a ) const

CCPoint& operator= ( const CCPoint & other )

CCPoint& operator= ( const CCSize & size )

CCPoint project ( const CCPoint & other ) const

inline

Calculates the projection of this over other.

Returns: CCPoint

Since: v2.1.4

local project ( local other )

inline

Calculates the projection of this over other.

Returns: CCPoint

Since: v2.1.4

CCPoint rotate ( const CCPoint & other ) const

inline

Complex multiplication of two points ("rotates" two points).

Returns: CCPoint vector with an angle of this.getAngle() + other.getAngle(), and a length of this.getLength() * other.getLength().

Since: v2.1.4

local rotate ( local other )

inline

Complex multiplication of two points ("rotates" two points).

Returns: CCPoint vector with an angle of this.getAngle() + other.getAngle(), and a length of this.getLength() * other.getLength().

Since: v2.1.4

CCPoint rotateByAngle	(	const CCPoint &	pivot,
		float	angle
	)		const

Rotates a point counter clockwise by the angle around a pivot.

Parameters

pivot	is the pivot, naturally
angle	is the angle of rotation ccw in radians

Returns: the rotated point

Since: v2.1.4

local rotateByAngle	(	local	pivot,
		local	angle
	)

Rotates a point counter clockwise by the angle around a pivot.

Parameters

pivot	is the pivot, naturally
angle	is the angle of rotation ccw in radians

Returns: the rotated point

Since: v2.1.4

void setPoint	(	float	x,
		float	y
	)

CCPoint unrotate ( const CCPoint & other ) const

inline

Unrotates two points.

Returns: CCPoint vector with an angle of this.getAngle() - other.getAngle(), and a length of this.getLength() * other.getLength().

Since: v2.1.4

local unrotate ( local other )

inline

Unrotates two points.

Returns: CCPoint vector with an angle of this.getAngle() - other.getAngle(), and a length of this.getLength() * other.getLength().

Since: v2.1.4

Member Data Documentation

float x

local x

float y

local y

The documentation for this class was generated from the following file:

/Users/guanghui/cocos2d-x/cocos2dx/cocoa/CCGeometry.h

Public Member Functions

Static Public Member Functions

Public Attributes

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation