pyunity.values.quaternion module

Class to represent a rotation in 3D space.

class pyunity.values.quaternion.Quaternion(w, x, y, z)

Bases: object

Class to represent a unit quaternion, also known as a versor.

Parameters:

• w (float) – Real value of Quaternion
• x (float) – x coordinate of Quaternion
• y (float) – y coordinate of Quaternion
• z (float) – z coordinate of Quaternion

abs_diff(other)

copy()

Deep copy of the Quaternion.

Returns:A deep copy Return type:Quaternion

normalized()

A normalized Quaternion, for rotations. If the length is 0, then the identity quaternion is returned.

Returns:A unit quaternion Return type:Quaternion

conjugate

The conjugate of a unit quaternion

RotateVector(vector)

Rotate a vector by the quaternion

static FromAxis(angle, a)

Create a quaternion from an angle and an axis.

Parameters:

• angle (float) – Angle to rotate
• a (Vector3) – Axis to rotate about

static Between(v1, v2)

static FromDir(v)

angleAxisPair

Gets or sets the angle and axis pair. Tuple of form (angle, axis).

static Euler(vector)

Create a quaternion using Euler rotations.

Parameters:vector (Vector3) – Euler rotations Returns:Generated quaternion Return type:Quaternion

eulerAngles

Gets or sets the Euler Angles of the quaternion

SetBackward(value)

static identity()

Identity quaternion representing no rotation

class pyunity.values.quaternion.QuaternionDiff(w, x, y, z)

Bases: object