ó
î&]\c           @` sÁ   d  Z  d d l m Z m Z m Z d d l Z d d l Z d d l m	 Z	 d d l
 m Z d   Z d d  Z e j j d	 d d
 d d d d g  e j j d d d d g  d     Z d S(   s   Tests for spline filtering.i    (   t   divisiont   print_functiont   absolute_importN(   t   assert_almost_equal(   t   ndimagec         C` s\   i d g d 6d g d 6d d g d 6d d g d 6d d d g d 6d	 d
 d g d 6} | |  S(   s0   Knot values to the right of a B-spline's center.i   i    i   i   i   i   ić   iL   iB   i   i   (    (   t   ordert   knot_values(    (    s?   lib/python2.7/site-packages/scipy/ndimage/tests/test_splines.pyt   get_spline_knot_values   s    
t   mirrorc         C` s­  t  |  } t j |  |  f  } xs t |  D]e \ } } t j | |   } | d k rk | | | | f <q. | | | | | f <| | | | | f <q. W| d d t | d  } | d k rÎ d	 \ }	 }
 nK | d k ré d
 \ }	 }
 n0 | d k rd \ }	 }
 n t d j |    x t t	 |  d  D]q } xh t | | d  D]R \ } } | | |	 |
 | f c | 7<| | d |	 d |
 | f c | 7<qKWq0W| | S(   s1   Matrix to invert to find the spline coefficients.i    i   i   R   t   reflectt   wrapi˙˙˙˙s   unsupported mode {}(   i   i   (   i    i   (   i˙˙˙˙i˙˙˙˙(
   R   t   npt   zerost	   enumeratet   aranget   sumt
   ValueErrort   formatt   ranget   len(   t   nR   t   modeR   t   matrixt   diagt
   knot_valuet   indicest   knot_values_sumt   startt   stept   rowt   idx(    (    s?   lib/python2.7/site-packages/scipy/ndimage/tests/test_splines.pyt   make_spline_knot_matrix   s*    !0R   i   i   i   i   i   R   R
   R	   c         C` sŤ   d } t  j | d t } t j | d d d |  d | } t j | d d d |  d | } t | |  d | } t | t  j | |   t | t  j | | j   d  S(   Nid   t   dtypet   axisi    R   R   i   (	   R   t   eyet   floatR   t   spline_filter1dR   R   t   dott   T(   R   R   R   R"   t   spline_filter_axis_0t   spline_filter_axis_1R   (    (    s?   lib/python2.7/site-packages/scipy/ndimage/tests/test_splines.pyt%   test_spline_filter_vs_matrix_solution8   s    		(   t   __doc__t
   __future__R    R   R   t   numpyR   t   pytestt   numpy.testingR   t   scipyR   R   R   t   markt   parametrizeR)   (    (    (    s?   lib/python2.7/site-packages/scipy/ndimage/tests/test_splines.pyt   <module>   s   	 $