pysal.lib.cg.
get_segment_point_dist
(seg, pt)[源代码]¶返回直线段与点之间的距离,以及沿直线段上最近点的段与点之间的距离,与直线段的长度之比。
获取u段u点u距离(linesegment,point)->(数字,数字)
参数: |
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实例
>>> seg = LineSegment(Point((0, 0)), Point((10, 0)))
>>> pt = Point((5, 5))
>>> get_segment_point_dist(seg, pt)
(5.0, 0.5)
>>> pt2 = Point((0, 0))
>>> get_segment_point_dist(seg, pt2)
(0.0, 0.0)