某些地理区域是围绕大都会城市的区域,每个城市都是不同的行政区域。瑞士(事实上)和巴西的首都就是这种情况。
getNumber
这些区域的GeoJSON数据是由几何类型的多边形或多多边形定义的。但是在两种情况下,当命令
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启动,以便可以将几何图形作为文本返回并存储在postGIS中
decode(json_line)
生成以下错误:
geometry.as_text
我将其解释为多边形未关闭。是的,但是有皱纹。
一个人如何处理这枚戒指呢?
答案 0 :(得分:0)
查看所有地理坐标和testing the string后,得出的结论是,这个问题不是一个空多边形与多边形一起出现的问题。
相反,当放大数据时,会有一个区域(就伯尔尼而言,the tiny hamlet of Schelten)是法语汝拉地区德语使用者的孤岛-似乎选择了非法国州的一部分。但是,构成它的多边形将其定义为更大的多边形的扩展,从而产生了交叉,从而产生了LinearRing
错误。
基本上,多边形的点不能接触其自身的边缘。
通过将交叉区域提取到其自己的多边形中,可以解决伯尔尼问题。