"贴紧"多边形一起 [英] "snapping" polygons together

问题描述

我有一组代表行政区的多边形。这些区域是手工数字化的，在多边形应该接触的多边形之间有很小的空间。可能还有重叠的多边形。如何将多边形拼接在一起，填补空白并消除重叠？

首选QGIS / ArcGIS或Python库解决方案（欢迎使用算法建议）

解决方案

老派的ArcInfo有一个干净的功能 - 我认为他们在地理处理方面做了同样的事情，如果你使用geodb。在该功能中，您设置了将线条和点集合在一起的容差。干净摆脱所有这些细条（你所谈论的技术术语）。

对于Qgis：

这个线程应该对您有所帮助
http://hub.qgis.org/issues/3126

I have a set of polygons representing administrative districts. The districts were digitized by hand, and there are small spaces between polygons where the polygons should be touching. There are probably also overlapping polygons. How can I have the polygons snap together, filling the gaps and removing overlap?

QGIS / ArcGIS or Python library solution preferred (but algorithm suggestions welcome)

解决方案

Old school ArcInfo had a "clean" function - I think they did the same thing in geoprocessing if you use a geodb. In that function you set a tolerance for snapping lines and points together. The clean gets rid of all those slivers (the technical term for what you are talking about).

For Qgis:

This thread should be of some help to you http://hub.qgis.org/issues/3126

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