Quat Class

Extends ValueType

Module: cc Parent Module: cc

Representation of 2D vectors and points.

Index

Properties

• x Number
• y Number
• z Number
• w Number

Methods

• constructor Constructor
• mul Calculate the multiply result between this quaternion and another one
• clone Obtaining copy specified quaternion
• copy Copy quaternion target
• set Provided Quaternion Value
• identity The target of an assignment as a unit quaternion
• rotationTo Set quaternion rotation is the shortest path between two vectors, the default two vectors are normalized
• getAxisAngle Get the rotary shaft and the arc of rotation quaternion
• multiply Quaternion multiplication
• multiplyScalar Quaternion scalar multiplication
• scaleAndAdd Quaternion multiplication and addition: A + B * scale
• rotateX About the X axis specified quaternion
• rotateY Rotation about the Y axis designated quaternion
• rotateZ Around the Z axis specified quaternion
• rotateAround Space around the world at a given axis of rotation quaternion
• rotateAroundLocal Local space around the specified axis rotation quaternion
• calculateW The component w xyz components calculated, normalized by default
• dot Quaternion dot product (scalar product)
• lerp Element by element linear interpolation: A + t * (B - A)
• sqlerp Quaternion with two spherical interpolation control points
• invert Quaternion inverse
• conjugate Conjugating a quaternion, and the unit quaternion equivalent to inversion, but more efficient
• len Seek length quaternion
• lengthSqr Seeking quaternion square of the length
• normalize Normalized quaternions
• fromAxes Calculated according to the local orientation quaternion coordinate axis, the default three vectors are normalized and mutually perpendicular
• fromViewUp The forward direction and the direction of the viewport computing quaternion
• fromAxisAngle The quaternion calculated and the arc of rotation of the rotary shaft
• `` Set a quaternion from the given euler angle 0, 0, z.
• fromMat3 Calculating the three-dimensional quaternion matrix information, default zoom information input matrix does not contain
• fromEuler The quaternion calculated Euler angle information, rotation order YZX
• toAxisX This returns the result of the quaternion coordinate system X-axis vector
• toAxisY This returns the result of the quaternion coordinate system Y axis vector
• toAxisZ This returns the result of the quaternion coordinate system the Z-axis vector
• toEuler The quaternion calculated Euler angles, return angle x, y in the [-180, 180] interval, z default the range [-90, 90] interval, the rotation order YZX
• strictEquals Analyzing quaternion equivalent
• equals Negative floating point error quaternion approximately equivalent Analyzing
• toArray Quaternion rotation array
• fromArray Array to a quaternion
• clone clone a Quat object and return the new object
• set Set values with another quaternion
• equals Check whether current quaternion equals another
• toEuler Convert quaternion to euler
• fromEuler Convert euler to quaternion
• lerp Calculate the interpolation result between this quaternion and another one with given ratio
• multiply Calculate the multiply result between this quaternion and another one
• rotateAround Rotates a quaternion by the given angle (in radians) about a world space axis.
• toString Convert to a readable string.

Details

Properties

x

y

z

w

Methods

constructor

Constructor see cc.quat

Parameters

• x number
• y number
• z number
• w number

mul

Calculate the multiply result between this quaternion and another one

Parameters

• other Quat
• out Quat

clone

Obtaining copy specified quaternion

copy

Copy quaternion target

set

Provided Quaternion Value

identity

The target of an assignment as a unit quaternion

rotationTo

Set quaternion rotation is the shortest path between two vectors, the default two vectors are normalized

getAxisAngle

Get the rotary shaft and the arc of rotation quaternion

Parameters

• outAxis Vec3 旋转轴输出
• q Quat 源四元数

multiply

Quaternion multiplication

multiplyScalar

Quaternion scalar multiplication

scaleAndAdd

Quaternion multiplication and addition: A + B * scale

rotateX

About the X axis specified quaternion

Parameters

• rad Unknown 旋转弧度

rotateY

Rotation about the Y axis designated quaternion

Parameters

• rad Unknown 旋转弧度

rotateZ

Around the Z axis specified quaternion

Parameters

• rad Unknown 旋转弧度

rotateAround

Space around the world at a given axis of rotation quaternion

Parameters

• axis Unknown 旋转轴，默认已归一化
• rad Unknown 旋转弧度

rotateAroundLocal

Local space around the specified axis rotation quaternion

Parameters

• axis Unknown 旋转轴
• rad Unknown 旋转弧度

calculateW

The component w xyz components calculated, normalized by default

dot

Quaternion dot product (scalar product)

lerp

Element by element linear interpolation: A + t * (B - A)

sqlerp

Quaternion with two spherical interpolation control points

invert

Quaternion inverse

conjugate

Conjugating a quaternion, and the unit quaternion equivalent to inversion, but more efficient

len

Seek length quaternion

lengthSqr

Seeking quaternion square of the length

normalize

Normalized quaternions

fromAxes

Calculated according to the local orientation quaternion coordinate axis, the default three vectors are normalized and mutually perpendicular

fromViewUp

The forward direction and the direction of the viewport computing quaternion

Parameters

• view Unknown 视口面向的前方向，必须归一化
• up Unknown 视口的上方向，必须归一化，默认为 (0, 1, 0)

fromAxisAngle

The quaternion calculated and the arc of rotation of the rotary shaft

Set a quaternion from the given euler angle 0, 0, z.

Parameters

• out Quat Quaternion to store result.
• z number Angle to rotate around Z axis in degrees.

fromMat3

Calculating the three-dimensional quaternion matrix information, default zoom information input matrix does not contain

fromEuler

The quaternion calculated Euler angle information, rotation order YZX

toAxisX

This returns the result of the quaternion coordinate system X-axis vector

toAxisY

This returns the result of the quaternion coordinate system Y axis vector

toAxisZ

This returns the result of the quaternion coordinate system the Z-axis vector

toEuler

The quaternion calculated Euler angles, return angle x, y in the [-180, 180] interval, z default the range [-90, 90] interval, the rotation order YZX

Parameters

• outerZ Unknown z 取值范围区间改为 [-180, -90] U [90, 180]

strictEquals

Analyzing quaternion equivalent

equals

Negative floating point error quaternion approximately equivalent Analyzing

toArray

Quaternion rotation array

Parameters

• ofs Unknown 数组内的起始偏移量

fromArray

Array to a quaternion

Parameters

• ofs Unknown 数组起始偏移量

clone

clone a Quat object and return the new object

set

Set values with another quaternion

Parameters

• newValue Quat !#en new value to set. !#zh 要设置的新值

equals

Check whether current quaternion equals another

Parameters

• other Quat

toEuler

Convert quaternion to euler

Parameters

• out Vec3

fromEuler

Convert euler to quaternion

Parameters

• euler Vec3

lerp

Calculate the interpolation result between this quaternion and another one with given ratio

Parameters

• to Quat
• ratio Number
• out Quat

multiply

Calculate the multiply result between this quaternion and another one

Parameters

• other Quat

rotateAround

Rotates a quaternion by the given angle (in radians) about a world space axis.

Parameters

• rot Quat Quaternion to rotate
• axis Vec3 The axis around which to rotate in world space
• rad Number Angle (in radians) to rotate
• out Quat Quaternion to store result

toString

Convert to a readable string.