def q2m(q):
    """
    Find the rotation matrix corresponding to a specified unit quaternion.

    http://naif.jpl.nasa.gov/pub/naif/toolkit_docs/C/cspice/q2m_c.html

    :param q: A unit quaternion.
    :type q: 4-Element Array of floats
    :return: A rotation matrix corresponding to q
    :rtype: 3x3-Element Array of floats
    """
    q = stypes.toDoubleVector(q)
    mout = stypes.emptyDoubleMatrix()
    libspice.q2m_c(q, mout)
    return stypes.cMatrixToNumpy(mout)
def q2m ( q ) : q = stypes . toDoubleVector ( q ) mout = stypes . emptyDoubleMatrix ( ) libspice . q2m_c ( q , mout ) return stypes . cMatrixToNumpy ( mout )
Find the rotation matrix corresponding to a specified unit quaternion.

    http://naif.jpl.nasa.gov/pub/naif/toolkit_docs/C/cspice/q2m_c.html

    :param q: A unit quaternion.
    :type q: 4-Element Array of floats
    :return: A rotation matrix corresponding to q
    :rtype: 3x3-Element Array of floats