Class Quat

constructor

• new Quat(elements?, axisOrder?): Quat

• Quat constructor

  Parameters

  • Optional elements: Float32Array = ...

    initial array to use

  • Optional axisOrder: AxisOrder = 'XYZ'

    axis order to use

  Returns Quat

type

elements

axisOrder

setFromArray

• setFromArray(array?): Quat

• Sets the Quat values from an array

  Parameters

  • array: number[] | Float32Array = ...

    an array of at least 4 elements

  Returns Quat

  • this Quat after being set

setAxisOrder

• setAxisOrder(axisOrder?): Quat

• Sets the Quat axis order

  Parameters

  • axisOrder: string = 'XYZ'

    axis order to use

  Returns Quat

  • this Quat after axis order has been set

copy

• copy(quaternion?): Quat

• Copy a Quat into this Quat

  Parameters

  • quaternion: Quat = ...

    Quat to copy

  Returns Quat

  • this Quat after copy

clone

• clone(): Quat

• Clone a Quat

  Returns Quat

  • cloned Quat

equals

• equals(quaternion?): boolean

• Check if 2 Quat are equal

  Parameters

  • quaternion: Quat = ...

    Quat to check against

  Returns boolean

  • whether the Quat are equal or not

setFromVec3

• setFromVec3(vector): Quat

• Sets a rotation Quat using Euler angles vector and its axis order

  Parameters

  • vector: Vec3

    rotation vector to set our Quat from

  Returns Quat

  • Quat after having applied the rotation

setFromAxisAngle

• setFromAxisAngle(axis, angle?): Quat

• Set a Quat from a rotation axis vector and an angle

  Parameters

  • axis: Vec3

    normalized vector around which to rotate

  • angle: number = 0

    angle (in radians) to rotate

  Returns Quat

  • Quat after having applied the rotation

setFromRotationMatrix

• setFromRotationMatrix(matrix): Quat

• Set a Quat from a rotation matrix

  Parameters

  • matrix: Mat4

    rotation matrix to use

  Returns Quat

  • Quat after having applied the rotation