o
    i	                     @   s   d Z ddlZddlZddlmZ ddlmZ ddlm	Z	 ej
jZe	ej
deddd	gd
gZdd ZdddZej
dg dej
dg ddd ZdS )zTests for spline filtering.    N)assert_almost_equal)ndimage)array_api_compatibleskip_xp_backendsTZcupyz	jax.numpy)Zcpu_only
exceptionsc                 C   s.   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_valuesr   r   Z/home/kim/smarthome/.venv/lib/python3.10/site-packages/scipy/ndimage/tests/test_splines.pyget_spline_knot_values   s   r   mirrorc                 C   sP  t |}t||f}t|D ]%\}}t||}|dkr$||||f< q||||| f< |||| |f< q|d dt|dd   }	|dkrLd\}
}n|dkrUd\}
}n|d	kr^d
\}
}ntd| tt|d D ]3}t||d d D ]&\}}|||
||  f  |7  < || d |
 d ||  f  |7  < qyqm| 	||	 S )z1Matrix to invert to find the spline coefficients.r   r   r   Nr   )r   r   reflect)r   r   	grid-wrap)r   zunsupported mode )
r   npZzeros	enumerateZarangesum
ValueErrorrangelenZasarray)xpnr   moder   matrixZdiagZ
knot_valueindicesZknot_values_sumstartsteprowidxr   r   r   make_spline_knot_matrix   s,   


*r*   r   r   r#   )r   r   r   c                 C   sj   d}|j ||jd}tj|d| |d}tj|d| |d}t||| |d}t|||  t|||j  d S )Nd   )Zdtyper   )Zaxisr   r#   r   )r#   )eyeZfloat64r   Zspline_filter1dr*   r   T)r   r#   r!   r"   r,   Zspline_filter_axis_0Zspline_filter_axis_1r$   r   r   r   %test_spline_filter_vs_matrix_solution=   s   

r.   )r   )__doc__Zpytestnumpyr   Zscipy._lib._array_apir   Zscipyr   Zscipy.conftestr   markr   ZusefixturesZ
pytestmarkr   r*   Zparametrizer.   r   r   r   r   <module>   s    
"