httk.atomistic.models.cell.view
===============================

.. py:module:: httk.atomistic.models.cell.view

.. autoapi-nested-parse::

   A view presenting any cell backend as a Cell (the class representation).



Classes
-------

.. autoapisummary::

   httk.atomistic.models.cell.view.CellView


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

.. py:class:: CellView(obj, **hints)

   Bases: :py:obj:`httk.atomistic.models.cell.view_base.CellViewBase`, :py:obj:`httk.atomistic.models.cell.cell.Cell`


   A view presenting an underlying cell backend as a ``Cell``.

   This view is a genuine ``Cell``, so it can be passed anywhere a Cell is accepted.
   Its state is built lazily on first access from the backend.

   :param obj: The cell-like object to present.
   :param \**hints: Backend-selection hints.


   .. py:property:: lengths
      :type: tuple[httk.core.SurdScalar, Ellipsis]


      Present the backend's native cell-vector lengths without re-deriving them.

      :return: The three exact or backend-native cell-vector lengths.


   .. py:property:: angles
      :type: tuple[fractions.Fraction, Ellipsis]


      Present the backend's native crystallographic angles without re-deriving them.

      :return: The three cell angles in degrees.


   .. py:method:: unwrap()

      Return the raw object behind the backend.

      :return: The unwrapped source object.



   .. py:method:: unview()

      Return this presentation as a standalone cell.

      The original backend remains available through :meth:`unwrap`. For a parameter
      backend with a non-special angle, the standalone basis uses that backend's
      documented deterministic rational approximation.

      :return: The standalone basis representation.