如何使用 Python 检查纬度/经度坐标是否在多边形内。(考虑到大圆。)

qwe*_*rty 5 python numpy polygon geo pandas

我有这个数据框,其中包含纬度/经度坐标:

      Lat       Lon
 29.39291 -98.50925
 29.39923 -98.51256
 29.40147 -98.51123
 29.38752 -98.52372
 29.39291 -98.50925
 29.39537 -98.50402
 29.39343 -98.49707
 29.39291 -98.50925
 29.39556 -98.53148
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这些是构造多边形的坐标:

       Lat        Lon
 29.392945 -98.507696
 29.406167 -98.509074
 29.407234 -98.517039
 29.391325 -98.517166
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我想使用 Python 检查每个坐标(来自第一个数据帧)是否在多边形内,并考虑到大圆。

预期结果:

      Lat       Lon  Within
 29.39291 -98.50925       1
 29.39923 -98.51256       1
 29.40147 -98.51123       1
 29.38752 -98.52372       0
 29.39291 -98.50925       1
 29.39537 -98.50402       0
 29.39343 -98.49707       0
 29.39291 -98.50925       1
 29.39556 -98.53148       0
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Bru*_*llo 4

从这里检查点是否在 python 中的多边形内部的最快方法是什么,假设多边形的数据帧是df_poly并且点是df_points

from shapely.geometry import Point
from shapely.geometry.polygon import Polygon

polygon = Polygon([tuple(x) for x in df_poly[['Lat', 'Lon']].to_numpy()])
df_points['Within'] = df_points.apply(lambda x: polygon.contains(Point(x['Lat'], x['Lon'])), axis=1)
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