pyquat

pyquat is a Python C extension providing quaternions and functions relating to simulation of attitudes and rotations. This might be useful for video games, spacecraft simulators, and sensors such as LIDARs and star trackers which provide attitude information. You can use them in place of rotation matrices. Unit quaternions represent attitude as half of the surface of a unit sphere in four dimensions (SO4).

Installation

python setup.py build
python setup.py install

Usage

from pyquat import Quat
import pyquat

q = pyquat.identity()

q4 = Quat(0.73029674334022143, 0.54772255750516607, 0.36514837167011072, 0.18257418583505536)
q2 = q * q4.conjugated()
q2.normalize()
q2.conjugate()

transform = q2.to_matrix()

vec = q2.to_rotation_vector()

License

Copyright 2016--2023 Juno Woods, Ph.D., and Translunar LLC.

See LICENSE.txt.