#1097: Dropped holes when buffer(0) -ing a valid geometry --------------------------+-------------------------- Reporter: astronomiser | Owner: geos-devel@… Type: defect | Status: new Priority: minor | Milestone: Component: Default | Version: 3.8.1 Severity: Unassigned | Keywords: buffer --------------------------+-------------------------- Passing along this bug report from [https://github.com/Toblerity/Shapely/issues/1069 the Shapely github].
[https://github.com/Toblerity/Shapely/files/5845907/shape.txt The WKT in a text file] Running buffer(0) leaves the geometry mostly unchanged but there is a group of holes which are removed in the lower right of the geometry. I was able to replicate this behavior in PostGIS (w/ GEOS 3.5). The user is using Shapely with GEOS 3.8.1. Buffering the geometry in JTS did not produce the same effect. -- Ticket URL: <https://trac.osgeo.org/geos/ticket/1097> GEOS <http://trac.osgeo.org/geos> GEOS (Geometry Engine - Open Source) is a C++ port of the Java Topology Suite (JTS).
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