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Vector3

xr-frame / Exports / Vector3

# Class: Vector3

# Table of contents

# Constructors

constructor

# Properties

ForwardLH
ONE
Phys3D
Up
ZERO

# Accessors

# Methods

# Constructors

# constructor

• new Vector3(raw?, offset?)

# Parameters

Name	Type
`raw?`	`Float32Array`
`offset?`	`number`

# Properties

# ForwardLH

▪ Static Readonly ForwardLH: Vector3

前方向，基于左手坐标系，不要对该对象进行修改

static

memberof Vector3

# ONE

▪ Static Readonly ONE: Vector3

一向量，不要对该对象进行修改

readonly

static

memberof Vector3

# Phys3D

▪ Static Optional Phys3D: typeof phys3D

# Up

▪ Static Readonly Up: Vector3

上方向，不要对该对象进行修改

static

memberof Vector3

# ZERO

▪ Static Readonly ZERO: Vector3

零向量，不要对该对象进行修改

readonly

static

memberof Vector3

# Accessors

# x

• get x(): number

x值

memberof Vector3

# Returns

number

• set x(val): void

x值

# Parameters

Name	Type
`val`	`number`

# Returns

void

# y

• get y(): number

y值

memberof Vector3

# Returns

number

• set y(val): void

y值

# Parameters

Name	Type
`val`	`number`

# Returns

void

# z

• get z(): number

z值

memberof Vector3

# Returns

number

• set z(val): void

z值

# Parameters

Name	Type
`val`	`number`

# Returns

void

# Methods

# add

▸ add(v, dst?): Vector3

向量加法

memberof Vector3

# Parameters

Name	Type	Description
`v`	`Vector3`	目标向量
`dst?`	`Vector3`	-

# Returns

Vector3

计算结果

# angleTo

▸ angleTo(location, dst?): Vector3

获取到目标点的角度

memberof Vector3

# Parameters

Name	Type	Description
`location`	`Vector3`	目标点
`dst?`	`Vector3`	-

# Returns

Vector3

计算结果

# applyMatrix4

▸ applyMatrix4(m): Vector3

create by janzen Multiplies this vector (with an implicit 1 in the 4th dimension) and m, and divides by perspective.

# Parameters

Name	Type
`m`	`Matrix4`

# Returns

Vector3

# applyMatrix4Raw

▸ applyMatrix4Raw(m): Vector3

create by roamye Multiplies this vector (with an implicit 1 in the 4th dimension) and m, and divides by perspective.

# Parameters

Name	Type
`m`	`Float32Array`

# Returns

Vector3

# applyQuaternion

▸ applyQuaternion(q): Vector3

# Parameters

Name	Type
`q`	`Quaternion`

# Returns

Vector3

# clone

▸ clone(): Vector3

拷贝该向量

memberof Vector3

# Returns

Vector3

拷贝出来的对象

# cross

▸ cross(v, dst?): Vector3

向量叉乘

memberof Vector3

# Parameters

Name	Type	Description
`v`	`Vector3`	目标向量
`dst?`	`Vector3`	-

# Returns

Vector3

计算结果

# distanceTo

▸ distanceTo(p): number

获取到目标点的距离

memberof Vector3

# Parameters

Name	Type	Description
`p`	`Vector3`	目标点

# Returns

number

计算结果

# dot

▸ dot(v): number

向量点乘

memberof Vector3

# Parameters

Name	Type	Description
`v`	`Vector3`	目标向量

# Returns

number

计算结果

# equal

▸ equal(v): boolean

判断与目标向量的值是否相等

memberof Vector3

# Parameters

Name	Type	Description
`v`	`Vector3`	目标向量

# Returns

boolean

是否相等，这里误差小于10^-6视为相等

# fromArray

▸ fromArray(array, offset): Vector3

# Parameters

Name	Type
`array`	`Float32Array`
`offset`	`number`

# Returns

Vector3

# fromPhysics

▸ fromPhysics(v): Vector3

# Parameters

Name	Type
`v`	`any`

# Returns

Vector3

# get

▸ get(i): number

# Parameters

Name	Type
`i`	`number`

# Returns

number

# isZero

▸ isZero(): boolean

是否为零向量

memberof Vector3

# Returns

boolean

# length

▸ length(): number

向量的模

memberof Vector3

# Returns

number

计算结果

# lerp

▸ lerp(v, f, dst?): Vector3

在该向量与目标向量之间计算插值

memberof Vector3

# Parameters

Name	Type	Description
`v`	`Vector3`	目标向量
`f`	`number`	插值系数
`dst?`	`Vector3`	-

# Returns

Vector3

计算结果

# negate

▸ negate(): Vector3

取反

# Returns

Vector3

# normalize

▸ normalize(dst?): Vector3

向量归一化

memberof Vector3

# Parameters

Name	Type
`dst?`	`Vector3`

# Returns

Vector3

计算结果

# print

▸ print(): void

# Returns

void

# scale

▸ scale(f, dst?): Vector3

向量缩放

memberof Vector3

# Parameters

Name	Type	Description
`f`	`number`	缩放比
`dst?`	`Vector3`	-

# Returns

Vector3

计算结果

# scaleXYZ

▸ scaleXYZ(x, y, z, dst?): Vector3

向量缩放

memberof Vector3

# Parameters

Name	Type	Description
`x`	`number`	x缩放比
`y`	`number`	y缩放比
`z`	`number`	z缩放比
`dst?`	`Vector3`	-

# Returns

Vector3

计算结果

# set

▸ set(v): Vector3

拷贝目标向量的值到该向量

memberof Vector3

# Parameters

Name	Type
`v`	`Vector3`

# Returns

Vector3

自身

# setArray

▸ setArray(value, offset?): Vector3

# Parameters

Name	Type
`value`	`ArrayLike`<`number`>
`offset?`	`number`

# Returns

Vector3

# setFromArray

▸ setFromArray(xyz): Vector3

# Parameters

Name	Type
`xyz`	`number`[]

# Returns

Vector3

# setFromMatrixColumn

▸ setFromMatrixColumn(m, index): Vector3

# Parameters

Name	Type
`m`	`Matrix4`
`index`	`number`

# Returns

Vector3

# setFromMatrixPosition

▸ setFromMatrixPosition(worldMatrix): Vector3

create by janzen Sets this vector to the position elements of the transformation matrix

# Parameters

Name	Type
`worldMatrix`	`Matrix4`

# Returns

Vector3

# setFromMatrixScale

▸ setFromMatrixScale(m): Vector3

# Parameters

Name	Type
`m`	`Matrix4`

# Returns

Vector3

# setValue

▸ setValue(x, y, z): Vector3

设置向量的值

memberof Vector3

# Parameters

Name	Type	Description
`x`	`number`	x
`y`	`number`	y
`z`	`number`	z

# Returns

Vector3

自身

# sub

▸ sub(v, dst?): Vector3

向量减法

memberof Vector3

# Parameters

Name	Type	Description
`v`	`Vector3`	目标向量
`dst?`	`Vector3`	-

# Returns

Vector3

计算结果

# toArray

▸ toArray(): [number, number, number]

返回向量数据

memberof Vector3

# Returns

[number, number, number]

矩阵数据，以JSArray返回

# toPhysics

▸ toPhysics(): any

created by shanexyzhou 生成物理引擎内的RawVec3f

# Returns

any

# transformDirection

▸ transformDirection(m): Vector3

create by janzen Transforms the direction of this vector by a matrix (the upper left 3 x 3 subset of a m) and then normalizes the result.

# Parameters

Name	Type
`m`	`Matrix4`

# Returns

Vector3

# transformDirectionRaw

▸ transformDirectionRaw(raw): Vector3

create by roamye Transforms the direction of this vector by a matrix (the upper left 3 x 3 subset of a m) and then normalizes the result.

# Parameters

Name	Type
`raw`	`Float32Array`

# Returns

Vector3

# clearPhysicsPool

▸ Static clearPhysicsPool(): void

# Returns

void

# createFromArray

▸ Static createFromArray(array): Vector3

使用一个数组创建此操作会拷贝一份数组

static

memberof Vector3

# Parameters

Name	Type	Description
`array`	`number`[]	数据源，长度必须为3，否则会抛出异常

# Returns

Vector3

创建出来的向量

# createFromNumber

▸ Static createFromNumber(x, y, z): Vector3

使用数值创建推荐使用这种方式代替new Vector3

static

memberof Vector3

# Parameters

Name	Type	Description
`x`	`number`	x
`y`	`number`	y
`z`	`number`	z

# Returns

Vector3

创建出来的向量

# createFromTypedArray

▸ Static createFromTypedArray(array, offset?): Vector3

使用某个已有的typedArray创建此操作不会拷贝数据，而是在原来的内存区域上操作

static

memberof Vector3

# Parameters

Name	Type	Default value	Description
`array`	`Float32Array`	`undefined`	数据源
`offset`	`number`	`0`	-

# Returns

Vector3

# fromPhysics

▸ Static fromPhysics(v): Vector3

created by shanexyzhou 从物理引擎内的RawVec3f生成Vector3

# Parameters

Name	Type
`v`	`any`

# Returns

Vector3

# transformCoordinate

▸ Static transformCoordinate(coordinate, transform, dst?): Vector3

# Parameters

Name	Type
`coordinate`	`Vector3`
`transform`	`Matrix4`
`dst?`	`Vector3`

# Returns

Vector3

# transformQuat

▸ Static transformQuat(source, rotation, dst?): Vector3

使用四元数进行向量旋转

static

memberof Vector3

# Parameters

Name	Type	Description
`source`	`Vector3`	源向量
`rotation`	`Quaternion`	用于旋转的四元数
`dst?`	`Vector3`	-

# Returns

Vector3

计算结果