ը fdZddlZdZdZy)a @package iscatt.utils @brief Misc utilities for iscatt (C) 2020 by the GRASS Development Team This program is free software under the GNU General Public License (>=v2). Read the file COPYING that comes with GRASS for details. @author Nicklas Larsson Nc^||z }tjtj||S)z1 Return the distance between two points. )npsqrtdot)xyds -/usr/lib/grass83/gui/wxpython/iscatt/utils.pydistr s& AA 77266!Q<  ctj|t}tj|t}tj|t}||z }||z }tj||}|dkr t ||Stj||}||kr t ||S||z }|||zz}t ||S)z Get the distance of a point to a segment. *p*, *s0*, *s1* are *xy* sequences This algorithm from http://geomalgorithms.com/a02-_lines.html r)rasarrayfloatrr ) ps0s1vwc1c2bpbs r dist_point_to_segmentrs 1eA B B B B RA BA 1B QwAr{ 1B RxAr{ RA a!eB 2;r )__doc__numpyrr rr r rs  !r