Class Quaternion

constructor

• new Quaternion(x?: number, y?: number, z?: number, w?: number): Quaternion

  Parameters

  • Optionalx: number

    The x component. Default 0.
  • Optionaly: number

    The y component. Default 0.
  • Optionalz: number

    The z component. Default 0.
  • Optionalw: number

    The w component. Default 1.

  Returns Quaternion

onChangeCallback

w

x

y

z

add

• add(v: Vector4 | Quaternion): Quaternion

  Add a given Quaternion or Vector to this Quaternion. Addition is component-wise.

  Parameters

  • v: Vector4 | Quaternion

    The Quaternion or Vector to add to this Quaternion.

  Returns Quaternion

calculateW

• calculateW(): Quaternion

  Create a unit (or rotation) Quaternion from its x, y, and z components.

  Sets the w component.

  Returns Quaternion

conjugate

• conjugate(): Quaternion

  Convert this Quaternion into its conjugate.

  Sets the x, y and z components.

  Returns Quaternion

copy

• copy(src: Vector4 | Quaternion): Quaternion

  Copy the components of a given Quaternion or Vector into this Quaternion.

  Parameters

  • src: Vector4 | Quaternion

    The Quaternion or Vector to copy the components from.

  Returns Quaternion

dot

• dot(v: Vector4 | Quaternion): number

  Calculate the dot product of this Quaternion and the given Quaternion or Vector.

  Parameters

  • v: Vector4 | Quaternion

    The Quaternion or Vector to dot product with this Quaternion.

  Returns number

fromMat3

• fromMat3(mat: Matrix3): Quaternion

  Convert the given Matrix into this Quaternion.

  Parameters

  • mat: Matrix3

    The Matrix to convert from.

  Returns Quaternion

identity

• identity(): Quaternion

  Reset this Matrix to an identity (default) Quaternion.

  Returns Quaternion

invert

• invert(): Quaternion

  Invert this Quaternion.

  Returns Quaternion

length

• length(): number

  Calculate the length of this Quaternion.

  Returns number

lengthSq

• lengthSq(): number

  Calculate the length of this Quaternion squared.

  Returns number

lerp

• lerp(v: Vector4 | Quaternion, t?: number): Quaternion

  Linearly interpolate this Quaternion towards the given Quaternion or Vector.

  Parameters

  • v: Vector4 | Quaternion

    The Quaternion or Vector to interpolate towards.
  • Optionalt: number

    The percentage of interpolation. Default 0.

  Returns Quaternion

multiply

• multiply(b: Vector4 | Quaternion): Quaternion

  Multiply this Quaternion by the given Quaternion or Vector.

  Parameters

  • b: Vector4 | Quaternion

    The Quaternion or Vector to multiply this Quaternion by.

  Returns Quaternion

normalize

• normalize(): Quaternion

  Normalize this Quaternion.

  Returns Quaternion

rotateX

• rotateX(rad: number): Quaternion

  Rotate this Quaternion on the X axis.

  Parameters

  • rad: number

    The rotation angle in radians.

  Returns Quaternion

rotateY

• rotateY(rad: number): Quaternion

  Rotate this Quaternion on the Y axis.

  Parameters

  • rad: number

    The rotation angle in radians.

  Returns Quaternion

rotateZ

• rotateZ(rad: number): Quaternion

  Rotate this Quaternion on the Z axis.

  Parameters

  • rad: number

    The rotation angle in radians.

  Returns Quaternion

rotationTo

• rotationTo(a: Math.Vector3, b: Math.Vector3): Quaternion

  Rotates this Quaternion based on the two given vectors.

  Parameters

  • a: Math.Vector3

    The transform rotation vector.
  • b: Math.Vector3

    The target rotation vector.

  Returns Quaternion

scale

• scale(scale: number): Quaternion

  Scale this Quaternion by the given value.

  Parameters

  • scale: number

    The value to scale this Quaternion by.

  Returns Quaternion

set

• set(
      x?: number | object,
      y?: number,
      z?: number,
      w?: number,
      update?: boolean,
  ): Quaternion

  Set the components of this Quaternion and optionally call the onChangeCallback.

  Parameters

  • Optionalx: number | object

    The x component, or an object containing x, y, z, and w components. Default 0.
  • Optionaly: number

    The y component. Default 0.
  • Optionalz: number

    The z component. Default 0.
  • Optionalw: number

    The w component. Default 0.
  • Optionalupdate: boolean

    Call the onChangeCallback? Default true.

  Returns Quaternion

setAxes

• setAxes(view: Math.Vector3, right: Math.Vector3, up: Math.Vector3): Quaternion

  Set the axes of this Quaternion.

  Parameters

  • view: Math.Vector3

    The view axis.
  • right: Math.Vector3

    The right axis.
  • up: Math.Vector3

    The upwards axis.

  Returns Quaternion

setAxisAngle

• setAxisAngle(axis: Math.Vector3, rad: number): Quaternion

  Set the axis angle of this Quaternion.

  Parameters

  • axis: Math.Vector3

    The axis.
  • rad: number

    The angle in radians.

  Returns Quaternion

setFromEuler

• setFromEuler(euler: Euler, update?: boolean): Quaternion

  Set this Quaternion from the given Euler, based on Euler order.

  Parameters

  • euler: Euler

    The Euler to convert from.
  • Optionalupdate: boolean

    Run the onChangeCallback? Default true.

  Returns Quaternion

setFromRotationMatrix

• setFromRotationMatrix(mat4: Math.Matrix4): Quaternion

  Sets the rotation of this Quaternion from the given Matrix4.

  Parameters

  • mat4: Math.Matrix4

    The Matrix4 to set the rotation from.

  Returns Quaternion

slerp

• slerp(b: Vector4 | Quaternion, t: number): Quaternion

  Smoothly linearly interpolate this Quaternion towards the given Quaternion or Vector.

  Parameters

  • b: Vector4 | Quaternion

    The Quaternion or Vector to interpolate towards.
  • t: number

    The percentage of interpolation.

  Returns Quaternion

subtract

• subtract(v: Vector4 | Quaternion): Quaternion

  Subtract a given Quaternion or Vector from this Quaternion. Subtraction is component-wise.

  Parameters

  • v: Vector4 | Quaternion

    The Quaternion or Vector to subtract from this Quaternion.

  Returns Quaternion