httk.atomistic.models.structure.plain_view
==========================================

.. py:module:: httk.atomistic.models.structure.plain_view

.. autoapi-nested-parse::

   A view presenting any structure backend as an spglib-like (lattice, positions, numbers) triple.



Classes
-------

.. autoapisummary::

   httk.atomistic.models.structure.plain_view.PlainStructureView


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

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

   Bases: :py:obj:`httk.atomistic.models.structure.view.StructureView`, :py:obj:`tuple`


   A view presenting an underlying structure backend as a primitive triple.

   This view is a genuine ``(lattice, positions, numbers)`` tuple, built eagerly
   and immutable. Because the primitive representation carries only bare atomic
   numbers, every site's species must be a single, unattached chemical element
   (see ``Species.is_single_element``); otherwise a TypeError is raised.

   :param obj: The structure backend or source to present.
   :param \*\*hints: Backend-selection hints passed to structure coercion.


   .. py:method:: unwrap()

      Return the raw value wrapped by the backend.

      :return: The original source value.



   .. py:method:: unview()

      Return this presentation as an ordinary primitive triple.

      :return: The lattice, positions, and atomic numbers.