RGeo::GeoJSON 未解码并返回 'doughnut' 多边形的几何 as_text

RGeo::GeoJSON not decoding and returning geometry as_text for 'doughnut' polygon

一些地理区域是围绕主要大都市的区域,其中每个区域都是一个不同的行政区域。瑞士(事实上)和巴西的首都就是这种情况。

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这些区域的 GeoJSON 数据由几何类型的多边形或多边形定义。但在这两种情况下,当命令 to

decode(json_line) 

已启动,以便可以将几何图形作为文本返回并使用 postGIS 存储

geometry.as_text

生成以下错误:

RGeo::Error::InvalidGeometry: LinearRing failed ring test

我将其解释为未闭合的多边形。是的,但有皱纹。
怎么处理这个一环一环的问题?

看了所有的地理坐标和testing the string,结论是这道题不是空多边形带多边形的问题。

相反,当放大数据时,有一个区域(在伯尔尼的情况下,the tiny hamlet of Schelten),它是法语侏罗地区的一个讲德语的岛屿——他们似乎选择了成为非法国州的一部分。然而,包含它的多边形将它定义为更大多边形的延伸,创建交叉并因此产生 LinearRing 错误。

基本上,多边形不能有接触其自身边的点。
伯尔尼问题通过将该交叉区域提取到它自己的多边形中得到解决...