我正在使用matplotlib和shapely测试多边形点函数.
这是一张包含百慕大三角形多边形的地图.
Google地图的多边形点函数清楚地表明,testsPoint和testingPoint2位于多边形内部,这是正确的结果.
如果我在matplotlib中测试两个点并且形状合理,则只有point2通过测试.
In [1]: from matplotlib.path import Path
In [2]: p = Path([[25.774252, -80.190262], [18.466465, -66.118292], [32.321384, -64.75737]])
In [3]: p1=[27.254629577800088, -76.728515625]
In [4]: p2=[27.254629577800088, -74.928515625]
In [5]: p.contains_point(p1)
Out[5]: 0
In [6]: p.contains_point(p2)
Out[6]: 1
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形状上显示与matplotlib相同的结果.
In [1]: from shapely.geometry import Polygon, Point
In [2]: poly = Polygon(([25.774252, -80.190262], [18.466465, -66.118292], [32.321384, -64.75737]))
In [3]: p1=Point(27.254629577800088, -76.728515625)
In [4]: p2=Point(27.254629577800088, -74.928515625)
In [5]: poly.contains(p1)
Out[5]: False
In …Run Code Online (Sandbox Code Playgroud) python matplotlib point-in-polygon google-maps-api-3 shapely