Class: Vector3 ​

三维向量

Properties ​

• MAX
• MIN
• SAFE_MAX
• SAFE_MIN
• X_AXIS
• Y_AXIS
• Z_AXIS
• x
• y
• z
• w

Accessors ​

• ZERO
• ONE
• LEFT
• RIGHT
• UP
• DOWN
• BACK
• FORWARD
• a
• r
• g
• b
• length
• lengthSquared
• position

Constructors ​

• constructor

Methods ​

• set
• add
• addXYZW
• clone
• copyFrom
• crossProduct
• decrementBy
• distance
• distanceXZ
• dotProduct
• equals
• incrementBy
• divide
• negate
• normalize
• applyQuaternion
• scaleBy
• mul
• scale
• scaleToRef
• setTo
• copy
• subtract
• multiply
• divided
• div
• lerp
• clamp
• toString
• getTowPointbyDir
• pointToLine
• normalizeToWay2D_XY
• toArray
• copyToBytes
• cross
• multiplyScalar
• setFromArray
• divideScalar
• clampLength
• cross
• dot
• getPoints
• getPointNumbers
• getAngle
• sqrMagnitude
• getZYAngle
• sub
• add
• setScalar

Properties ​

MAX ​

▪ Static MAX: Vector3

向量最大值

Defined in ​

src/engine/math/Vector3.ts:9

MIN ​

▪ Static MIN: Vector3

Defined in ​

src/engine/math/Vector3.ts:10

SAFE_MAX ​

▪ Static SAFE_MAX: Vector3

Defined in ​

src/engine/math/Vector3.ts:12

SAFE_MIN ​

▪ Static SAFE_MIN: Vector3

Defined in ​

src/engine/math/Vector3.ts:13

X_AXIS ​

▪ Static X_AXIS: Vector3

X轴坐标 (1,0,0).

Defined in ​

src/engine/math/Vector3.ts:22

Y_AXIS ​

▪ Static Y_AXIS: Vector3

Y轴坐标 (0,1,0).

Defined in ​

src/engine/math/Vector3.ts:36

Z_AXIS ​

▪ Static Z_AXIS: Vector3

Z轴坐标 (0,0,1).

Defined in ​

src/engine/math/Vector3.ts:46

x ​

• x: number = 0

向量的x分量，默认值是0

Defined in ​

src/engine/math/Vector3.ts:144

y ​

• y: number = 0

向量的y分量，默认值是0

Defined in ​

src/engine/math/Vector3.ts:154

z ​

• z: number = 0

向量的z分量，默认值是0

Defined in ​

src/engine/math/Vector3.ts:165

w ​

• w: number = 1

向量的z分量， 可作为一种透视投影的三维位置或投影 也可以做四元数中的w

Defined in ​

src/engine/math/Vector3.ts:172

Accessors ​

ZERO ​

• Static get ZERO(): Vector3

返回一个新的x，y，z分量都为0的向量

Returns ​

Vector3

Defined in ​

src/engine/math/Vector3.ts:87

ONE ​

• Static get ONE(): Vector3

返回一个新的x，y，z分量都为1的向量

Returns ​

Vector3

Defined in ​

src/engine/math/Vector3.ts:94

LEFT ​

• Static get LEFT(): Vector3

返回一个新的指向左方向的向量，即x为-1，y为0，z为0

Returns ​

Vector3

Defined in ​

src/engine/math/Vector3.ts:101

RIGHT ​

• Static get RIGHT(): Vector3

返回一个新的指向右方向的向量，即x为1，y为0，z为0

Returns ​

Vector3

Defined in ​

src/engine/math/Vector3.ts:107

UP ​

• Static get UP(): Vector3

返回一个新的指向上方的向量，即x为0，y为1，z为0

Returns ​

Vector3

Defined in ​

src/engine/math/Vector3.ts:113

DOWN ​

• Static get DOWN(): Vector3

返回一个新的指向下方的向量，即x为0，y为-1，z为0

Returns ​

Vector3

Defined in ​

src/engine/math/Vector3.ts:119

BACK ​

• Static get BACK(): Vector3

返回一个新的指向后方的向量，即x为0，y为0，z为-1

Returns ​

Vector3

Defined in ​

src/engine/math/Vector3.ts:125

FORWARD ​

• Static get FORWARD(): Vector3

返回一个新的指向前方的向量，即x为0，y为0，z为1

Returns ​

Vector3

Defined in ​

src/engine/math/Vector3.ts:131

a ​

• get a(): number

得到w分量

Returns ​

number

获得w的值

Defined in ​

src/engine/math/Vector3.ts:211

• set a(value): void

设置w分量

Parameters ​

Returns ​

void

Defined in ​

src/engine/math/Vector3.ts:179

r ​

• get r(): number

得到x分量

Returns ​

number

获得x的值

Defined in ​

src/engine/math/Vector3.ts:219

• set r(value): void

设置x分量

Parameters ​

Returns ​

void

Defined in ​

src/engine/math/Vector3.ts:186

g ​

• get g(): number

得到y分量

Returns ​

number

获得y的值

Defined in ​

src/engine/math/Vector3.ts:227

• set g(value): void

设置y分量

Parameters ​

Returns ​

void

Defined in ​

src/engine/math/Vector3.ts:194

b ​

• get b(): number

得到z分量

Returns ​

number

获得z的值

Defined in ​

src/engine/math/Vector3.ts:235

• set b(value): void

设置z分量

Parameters ​

Returns ​

void

Defined in ​

src/engine/math/Vector3.ts:203

length ​

• get length(): number

向量的长度，原点(0, 0, 0)到(x, y, z)的距离

Returns ​

number

Defined in ​

src/engine/math/Vector3.ts:250

lengthSquared ​

• get lengthSquared(): number

获得向量长度的平方

Returns ​

number

Defined in ​

src/engine/math/Vector3.ts:267

position ​

• get position(): this

获得当前向量

Returns ​

this

Defined in ​

src/engine/math/Vector3.ts:310

Constructors ​

constructor ​

• new Vector3(x?, y?, z?, w?)

创建一个对象实例，默认为(0, 0, 0, 0)

Platform

Native

Parameters ​

Defined in ​

src/engine/math/Vector3.ts:301

Methods ​

set ​

▸ set(x, y, z, w?): Vector3

设置当前向量x，y，z，w分量

Parameters ​

Returns ​

Vector3

Defined in ​

src/engine/math/Vector3.ts:322

add ​

▸ add(a, target?): Vector3

该向量与向量相加

Parameters ​

Returns ​

Vector3

Vector3 结果返回

Defined in ​

src/engine/math/Vector3.ts:359

addXYZW ​

▸ addXYZW(x, y, z, w, target?): Vector3

Parameters ​

Returns ​

Vector3

Defined in ​

src/engine/math/Vector3.ts:376

clone ​

▸ clone(): Vector3

/**

• 克隆一个与当前向量分量相同的向量

Returns ​

Vector3

Defined in ​

src/engine/math/Vector3.ts:405

copyFrom ​

▸ copyFrom(src): Vector3

源向量的分量设置到当前向量中

Parameters ​

Returns ​

Vector3

Defined in ​

src/engine/math/Vector3.ts:421

crossProduct ​

▸ crossProduct(a, target?): Vector3

两个向量进行叉乘， 叉乘后的结果是这两条向量的垂直向量

Parameters ​

Returns ​

Vector3

Vector3 返回叉乘结果向量

Defined in ​

src/engine/math/Vector3.ts:455

decrementBy ​

▸ decrementBy(a): void

两个向量相减，结果赋值给自己

Parameters ​

Returns ​

void

Defined in ​

src/engine/math/Vector3.ts:482

distance ​

▸ Static distance(pt1, pt2): number

计算两个向量之间的距离

Parameters ​

Returns ​

number

number 两个向量之间的距离

Defined in ​

src/engine/math/Vector3.ts:507

distanceXZ ​

▸ Static distanceXZ(pt1, pt2): number

Parameters ​

Returns ​

number

Defined in ​

src/engine/math/Vector3.ts:514

dotProduct ​

▸ dotProduct(a): number

计算两个向量的点积,返回两个向量之间的夹角关系

Parameters ​

Returns ​

number

number 返回两个向量之间的夹角关系

Defined in ​

src/engine/math/Vector3.ts:527

equals ​

▸ equals(toCompare, allFour?): boolean

求两个向量的值是否全等

Parameters ​

Returns ​

boolean

boolean 全等返回true

Defined in ​

src/engine/math/Vector3.ts:549

incrementBy ​

▸ incrementBy(a): void

当前向量加等于向量，只加x y z 3个分量

Parameters ​

Returns ​

void

Defined in ​

src/engine/math/Vector3.ts:569

divide ​

▸ divide(v): Vector3

当前向量除以向量或者分量

Parameters ​

Returns ​

Vector3

Vector3 返回自己，计算之后的结果

Defined in ​

src/engine/math/Vector3.ts:581

negate ​

▸ negate(): Vector3

当前向量x，y，z分量取反

Returns ​

Vector3

Defined in ​

src/engine/math/Vector3.ts:608

normalize ​

▸ normalize(thickness?): Vector3

当前向量标准化

Parameters ​

Returns ​

Vector3

Defined in ​

src/engine/math/Vector3.ts:631

applyQuaternion ​

▸ applyQuaternion(q): Vector3

Parameters ​

Returns ​

Vector3

Defined in ​

src/engine/math/Vector3.ts:646

scaleBy ​

▸ scaleBy(s): Vector3

当前向量扩大s倍

Parameters ​

Returns ​

Vector3

Defined in ​

src/engine/math/Vector3.ts:688

mul ​

▸ mul(s): Vector3

当前向量乘以标量s

Parameters ​

Returns ​

Vector3

Defined in ​

src/engine/math/Vector3.ts:700

scale ​

▸ scale(s): Vector3

Parameters ​

Returns ​

Vector3

Defined in ​

src/engine/math/Vector3.ts:708

scaleToRef ​

▸ scaleToRef(s, ref): Vector3

Parameters ​

Returns ​

Vector3

Defined in ​

src/engine/math/Vector3.ts:715

setTo ​

▸ setTo(xa, ya, za, wa?): void

填充当前向量的分量

Parameters ​

Returns ​

void

Defined in ​

src/engine/math/Vector3.ts:742

copy ​

▸ copy(src): Vector3

复制源向量的分量到此向量

Parameters ​

Returns ​

Vector3

Defined in ​

src/engine/math/Vector3.ts:754

subtract ​

▸ subtract(a, target?): Vector3

将该向量减去向量。

Parameters ​

Returns ​

Vector3

Defined in ​

src/engine/math/Vector3.ts:782

multiply ​

▸ multiply(other, target?): Vector3

将该向量乘以向量。

Parameters ​

Returns ​

Vector3

Defined in ​

src/engine/math/Vector3.ts:796

divided ​

▸ divided(other, target?): Vector3

将该向量除以向量。

Parameters ​

Returns ​

Vector3

Defined in ​

src/engine/math/Vector3.ts:819

div ​

▸ div(v, target?): Vector3

将该向量除以标量

Parameters ​

Returns ​

Vector3

Defined in ​

src/engine/math/Vector3.ts:841

lerp ​

▸ lerp(v0, v1, t): void

计算两个Vector3之间的线性插值，结果为当前对象

Parameters ​

Returns ​

void

Defined in ​

src/engine/math/Vector3.ts:862

clamp ​

▸ clamp(min, max): Vector3

将该向量x分量、 y分量以及z分量向上取整为最接近的整数。

Parameters ​

Returns ​

Vector3

Defined in ​

src/engine/math/Vector3.ts:884

toString ​

▸ toString(): string

返回当前向量的字符串形式

Returns ​

string

Defined in ​

src/engine/math/Vector3.ts:952

getTowPointbyDir ​

▸ Static getTowPointbyDir(dir, tp1, tp2, width, aix): void

通过一个朝向，获取一条垂直有宽度的垂直线段

Parameters ​

Returns ​

void

Defined in ​

src/engine/math/Vector3.ts:976

pointToLine ​

▸ Static pointToLine(point1, point2, position): number

Parameters ​

Returns ​

number

Defined in ​

src/engine/math/Vector3.ts:998

normalizeToWay2D_XY ​

▸ normalizeToWay2D_XY(): void

规整为正轴

Returns ​

void

Defined in ​

src/engine/math/Vector3.ts:1033

toArray ​

▸ toArray(): number[]

Returns ​

number[]

Defined in ​

src/engine/math/Vector3.ts:1051

copyToBytes ​

▸ copyToBytes(byte): void

Parameters ​

Returns ​

void

Defined in ​

src/engine/math/Vector3.ts:1055

cross ​

▸ cross(a, target?): Vector3

两个Vector3进行叉乘 this 叉乘 a 叉乘后的结果是这两条向量的垂直向量

Parameters ​

Returns ​

Vector3

Vector3 返回叉乘结果向量

Defined in ​

src/engine/math/Vector3.ts:1068

multiplyScalar ​

▸ multiplyScalar(scalar): Vector3

Parameters ​

Returns ​

Vector3

Defined in ​

src/engine/math/Vector3.ts:1077

setFromArray ​

▸ setFromArray(array, firstElementPos?): void

Parameters ​

Returns ​

void

Defined in ​

src/engine/math/Vector3.ts:1085

divideScalar ​

▸ divideScalar(scalar): Vector3

Parameters ​

Returns ​

Vector3

Defined in ​

src/engine/math/Vector3.ts:1091

clampLength ​

▸ clampLength(min, max): Vector3

Parameters ​

Returns ​

Vector3

Defined in ​

src/engine/math/Vector3.ts:1095

cross ​

▸ Static cross(a, b, target?): Vector3

Parameters ​

Returns ​

Vector3

Defined in ​

src/engine/math/Vector3.ts:1100

dot ​

▸ Static dot(a, b): number

计算两个向量的点积（dot product）。

Parameters ​

Returns ​

number

Defined in ​

src/engine/math/Vector3.ts:1114

getPoints ​

▸ Static getPoints(total, randSeed): any[]

Parameters ​

Returns ​

any[]

Defined in ​

src/engine/math/Vector3.ts:1118

getPointNumbers ​

▸ Static getPointNumbers(total, randSeed): any[]

Parameters ​

Returns ​

any[]

Defined in ​

src/engine/math/Vector3.ts:1127

getAngle ​

▸ Static getAngle(from, to): number

返回 源向量 与 目标向量 之间的角度（以度为单位）。

Parameters ​

Returns ​

number

Defined in ​

src/engine/math/Vector3.ts:1149

sqrMagnitude ​

▸ Static sqrMagnitude(arg0): number

Parameters ​

Returns ​

number

Defined in ​

src/engine/math/Vector3.ts:1154

getZYAngle ​

▸ Static getZYAngle(zd, yd): number

Parameters ​

Returns ​

number

Defined in ​

src/engine/math/Vector3.ts:1158

sub ​

▸ Static sub(a, b, target?): Vector3

两个向量相减

Parameters ​

Returns ​

Vector3

Defined in ​

src/engine/math/Vector3.ts:1168

add ​

▸ Static add(a, b, target?): Vector3

两个向量相加

Parameters ​

Returns ​

Vector3

Defined in ​

src/engine/math/Vector3.ts:1184

setScalar ​

▸ setScalar(value): Vector3

Parameters ​

Returns ​

Vector3

Defined in ​

src/engine/math/Vector3.ts:1243