【问题标题】:h3 polyfill returns empty listh3 polyfill 返回空列表
【发布时间】:2021-12-16 01:51:39
【问题描述】:

我有两个不同的多边形

poly1 = {'type': 'Polygon',
 'coordinates': [[[37.813318999983238, -122.4089866999972145],
 [ 37.7866302000007224, -122.3805436999997056 ],
 [37.7198061999978478, -122.3544736999993603],
 [ 37.7076131999975672, -122.5123436999983966 ],
 [37.7835871999971715, -122.5247187000021967],
 [37.8151571999998453, -122.4798767000009008]]] }

poly2 = {'type': 'Polygon', 
 'coordinates': [[[394848.932324579, 5815933.130831123], 
 [394848.932324579, 5818765.877144514], 
 [389427.971197729, 5818765.877144514], 
 [389427.971197729, 5815933.130831123], 
 [394848.932324579, 5815933.130831123]]] }

当我跑步时

hexagons = list(h3.polyfill(poly1, 10))

我明白了

[ '88283095d1fffff', '8828309427fffff', '88283082cbfffff', '8828308251fffff', '88283082abfffff', '88283082ddfffff', '882830820bfffff', '8828309585fffff', '88283082b1fffff', '882830821dfffff', '8828309425fffff',“8828309519fffff ', '8828308747fffff', '88283095a1fffff', '8828308211fffff', ...

当我跑步时

hexagons = list(h3.polyfill(poly2, 10))

我明白了

[]

这是为什么呢?

【问题讨论】:

    标签: python geospatial geojson h3


    【解决方案1】:

    显然,h3 仅适用于具有 EPSG 4326 的 Projection WGS84poly2 中提供的坐标确实有另一个投影!转换坐标,按预期运行。

    【讨论】:

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