a
    BCCf—  ã                   @   sn   d Z ddlZddlZddlmZ ddlmZ dd„ Zddd	„Z	ej
 d
g d¢¡ej
 dg d¢¡dd„ ƒƒZdS )zTests for spline filtering.é    N)Úassert_almost_equal)Úndimagec                 C   s.   dgdgddgddgg d¢g d¢dœ}||  S )z0Knot values to the right of a B-spline's center.é   é   é   )éæ   éL   r   )éB   é   r   ©r   r   é   é   r   é   © )ÚorderÚknot_valuesr   r   ú\/var/www/html/django/DPS/env/lib/python3.9/site-packages/scipy/ndimage/tests/test_splines.pyÚget_spline_knot_values
   s    ûr   Úmirrorc                 C   sJ  t |ƒ}t | | f¡}t|ƒD ]J\}}t || ¡}|dkrH||||f< q||||| f< |||| |f< q|d dt|dd… ƒ  }|dkr˜d\}	}
n2|dkrªd\}	}
n |d	kr¼d
\}	}
ntd|› ƒ‚tt|ƒd ƒD ]f}t||d d… ƒD ]L\}}|||	|
|  f  |7  < || d |	 d |
|  f  |7  < qòqÚ|| S )z1Matrix to invert to find the spline coefficients.r   r   r   Nr   )r   r   Úreflect)r   r   ú	grid-wrap)éÿÿÿÿr   zunsupported mode )	r   ÚnpZzerosÚ	enumerateZarangeÚsumÚ
ValueErrorÚrangeÚlen)Únr   Úmoder   ÚmatrixZdiagZ
knot_valueÚindicesZknot_values_sumÚstartÚstepÚrowÚidxr   r   r   Úmake_spline_knot_matrix   s*    


,r&   r   r   r   )r   r   r   c                 C   sn   d}t j|td}tj|d| |d}tj|d| |d}t|| |d}t|t  ||¡ƒ t|t  ||j¡ƒ d S )Néd   )Zdtyper   )Zaxisr   r   r   )r   )	r   ÚeyeÚfloatr   Zspline_filter1dr&   r   ÚdotÚT)r   r   r   r(   Zspline_filter_axis_0Zspline_filter_axis_1r    r   r   r   Ú%test_spline_filter_vs_matrix_solution6   s    
ÿ
ÿr,   )r   )Ú__doc__Únumpyr   ZpytestZnumpy.testingr   Zscipyr   r   r&   ÚmarkZparametrizer,   r   r   r   r   Ú<module>   s   
 