httk.io.cif.symops_utils
========================

.. py:module:: httk.io.cif.symops_utils


Functions
---------

.. autoapisummary::

   httk.io.cif.symops_utils.compose_ops_with_centerings


Module Contents
---------------

.. py:function:: compose_ops_with_centerings(ops, centerings)

   Compose symmetry operations with centering translations.

   ``ops`` is a list of ``(R, t, time_flag)`` operations and ``centerings`` is a list
   of ``(c, time_c)`` where ``c`` is a 3-vector fractional translation and ``time_c``
   is 0 or 1 (0 means no time reversal). Returns a new list of ``(R, t', time')`` where
   ``t' = t + c`` and ``time' = (time_flag + time_c) % 2``.