Vector2 Class Reference

二维向量, 单精度浮点数. More...

#include <Vector2.h>

Collaboration diagram for Vector2:

Public Member Functions
	Vector2 ()=default
	默认构造函数.
	Vector2 (float x, float y)
	构造函数. More...
float	size () const
	获取长度. More...
float	sizeSquared () const
	获取长度平方. More...
float	distance (const Vector2 &point) const
	获取到另一个点的距离. More...
float	distanceSquared (const Vector2 &point) const
	获取到另一个点的距离的平方. More...
Vector2 &	normalize ()
	标准化成单位向量.
float	dot (const Vector2 &v) const
	计算向量点积. More...
float	angle () const
	获取角度. More...
void	rotate (const Vector2 &point, float angle)
	围绕指定点旋转指定弧度. More...
Vector2	getMidPoint (const Vector2 &p) const
	获取与另一个点之间的中点.
float	area () const
	获取面积.
float &	operator[] (size_t index)
bool	operator== (const Vector2 &v) const
bool	operator!= (const Vector2 &v) const
Vector2	operator* (float n) const
Vector2	operator/ (float n) const
Vector2	operator+ (const Vector2 &v) const
Vector2	operator- (const Vector2 &v) const
Vector2	operator- () const
Vector2 &	operator+= (const Vector2 &v)
Vector2 &	operator-= (const Vector2 &v)
Vector2 &	operator*= (float n)
Vector2 &	operator/= (float n)
Vector2	operator+ (const Vector2i &v) const
Vector2	operator- (const Vector2i &v) const
Vector2i	asInt () const
	获取整型二维向量. More...
	operator Vector2i () const

Public Attributes
float	x = 0.0f
float	y = 0.0f

Static Public Attributes
static const Vector2	unit
static const Vector2	zero
static const Vector2	up
static const Vector2	down
static const Vector2	right
static const Vector2	left

Detailed Description

二维向量, 单精度浮点数.

Constructor & Destructor Documentation

Vector2()

Vector2::Vector2	(	float	x,
		float	y
	)

构造函数.

Parameters

x	x坐标.
y	y坐标.

Member Function Documentation

angle()

float Vector2::angle

(

)

const

获取角度.

Returns

角度, 弧度制. 范围: [2π, -2π)

asInt()

Vector2i Vector2::asInt

(

)

const

获取整型二维向量.

Returns

去除小数后的整型二维向量.

distance()

float Vector2::distance

(

const Vector2 &

point

)

const

获取到另一个点的距离.

Parameters

point

另一个点.

See also

distanceSquared

distanceSquared()

float Vector2::distanceSquared

(

const Vector2 &

point

)

const

获取到另一个点的距离的平方.

Parameters

point

另一个点.

See also

distance

dot()

float Vector2::dot

(

const Vector2 &

v

)

const

计算向量点积.

Parameters

v

另一个向量.

Returns

和另一个向量的点积.

rotate()

void Vector2::rotate	(	const Vector2 &	point,
		float	angle
	)

围绕指定点旋转指定弧度.

Parameters

point	点.
angle	旋转角度, 弧度制.

size()

float Vector2::size

(

)

const

获取长度.

Note

See also

sizeSquared

sizeSquared()

float Vector2::sizeSquared

(

)

const

获取长度平方.

See also

size

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

• Source/Clem/Core/Math/Vector2.h
• Source/Clem/Core/Math/Vector2.cpp