
    bi8	                         d Z ddlZddlZddlmZmZ ddlmZ d Z	ddZ
 eej                        ej                  j                  dg d      ej                  j                  d	g d
      d                      Zy)zTests for spline filtering.    N)assert_almost_equalmake_xp_test_case)ndimagec                 2    dgdgddgddgg dg dd}||    S )z0Knot values to the right of a B-spline's center.         )   L   r   )B      r   r   r         r	       )orderknot_valuess     [/home/cdr/jupyterlab/.venv/lib/python3.12/site-packages/scipy/ndimage/tests/test_splines.pyget_spline_knot_valuesr   
   s4    cc!f!f"!#K u    c                 \   t        |      }t        j                  ||f      }t        |      D ]<  \  }}t        j                  ||      }|dk(  r||||f<   )|||||z
  f<   ||||z
  |f<   > |d   dt        |dd       z  z   }	|dk(  rd\  }
}n$|dk(  rd\  }
}n|d	k(  rd
\  }
}nt        d|       t        t        |      dz
        D ]M  }t        ||dz   d       D ]7  \  }}|||
||z  z   fxx   |z  cc<   || dz
  |
 dz
  ||z  z
  fxx   |z  cc<   9 O | j                  ||	z        S )z1Matrix to invert to find the spline coefficients.r   r   r   Nmirror)r   r   reflect)r   r   	grid-wrap)r   zunsupported mode )
r   npzeros	enumeratearangesum
ValueErrorrangelenasarray)xpnr   moder   matrixdiag
knot_valueindicesknot_values_sumstartsteprowidxs                 r   make_spline_knot_matrixr2      s   (/K XXq!fF%k2 9j))D!$19'1F7G#$.8F7GdN*+.8F7T>7*+9 "!nq3{12+?'??Oxt		t		t,TF344S%)* B(S1WX)>? 	BOC3S(()Z7)C4!8eVaZ$s(223zA3	BB
 ::f.//r   r   r   r(   )r   r   r   c                    d}|j                  ||j                        }t        j                  |d| |      }t        j                  |d| |      }t	        ||| |      }t        |||z         t        |||j                  z         y )Nd   )dtyper   )axisr   r(   r   )r(   )eyefloat64r   spline_filter1dr2   r   T)r   r(   r&   r'   r7   spline_filter_axis_0spline_filter_axis_1r)   s           r   %test_spline_filter_vs_matrix_solutionr=   8   s     	A
&&"**&
%C"223Qe8<>"223Qe8<>$RE=F1F:;1FHH<=r   )r   )__doc__pytestnumpyr   scipy._lib._array_apir   r   scipyr   r   r2   r9   markparametrizer=   r   r   r   <module>rE      ss    !   H 	0D 7**+"45!CD	> E 6 ,	>r   