jaxdem.utils.quaternion#

Quaternion math utilities.

Classes

Quaternion(w, xyz)

Quaternion representing particle orientation (body frame to lab frame).

class jaxdem.utils.quaternion.Quaternion(w: Array, xyz: Array)[source]#

Bases: object

Quaternion representing particle orientation (body frame to lab frame).

w: Array#

xyz: Array#

static create(w: Array | ndarray | bool | number | bool | int | float | complex | TypedNdArray | None = None, xyz: Array | ndarray | bool | number | bool | int | float | complex | TypedNdArray | None = None) → Quaternion[source][source]#

static unit(q: Quaternion) → Quaternion[source][source]#

static conj(q: Quaternion) → Quaternion[source][source]#

static inv(q: Quaternion) → Quaternion[source][source]#

static rotate(q: Quaternion, v: Array) → Array[source][source]#: Rotates a vector v from the body reference frame to the lab reference frame.

static rotate_back(q: Quaternion, v: Array) → Array[source][source]#: Rotates a vector v from the lab reference frame to the body reference frame.