.. include:: ../wcs/references.txt

Sip
===

.. currentmodule:: astropy.wcs

.. autoclass:: Sip
   :show-inheritance:

   .. rubric:: Attributes Summary

   .. autosummary::

      ~Sip.a
      ~Sip.a_order
      ~Sip.ap
      ~Sip.ap_order
      ~Sip.b
      ~Sip.b_order
      ~Sip.bp
      ~Sip.bp_order
      ~Sip.crpix

   .. rubric:: Methods Summary

   .. autosummary::

      ~Sip.foc2pix
      ~Sip.pix2foc

   .. rubric:: Attributes Documentation

   .. autoattribute:: a
   .. autoattribute:: a_order
   .. autoattribute:: ap
   .. autoattribute:: ap_order
   .. autoattribute:: b
   .. autoattribute:: b_order
   .. autoattribute:: bp
   .. autoattribute:: bp_order
   .. autoattribute:: crpix

   .. rubric:: Methods Documentation

   .. automethod:: foc2pix
   .. automethod:: pix2foc