#1022: Buffering a specific closed linestring erroneously produces polygon
without
hole.
------------------------+---------------------------
Reporter: uclaros | Owner: geos-devel@…
Type: defect | Status: new
Priority: major | Milestone:
Component: Default | Version: 3.8.0
Severity: Unassigned | Resolution:
Keywords: |
------------------------+---------------------------
Comment (by jgrocha):
Confirmed using Postgis with GEOS 3.8.0-CAPI-1.13.1
SQL to reproduce the bug:
{{{
CREATE TABLE public.tpoly (
id serial NOT NULL,
geom geometry(POLYGON, 3857) not null,
CONSTRAINT tpoly_pkey PRIMARY KEY (id)
);
CREATE TABLE public.tline (
id serial NOT NULL,
geom geometry(LINESTRING, 3857) not null,
CONSTRAINT tline_pkey PRIMARY KEY (id)
);
insert into public.tline (geom)
values (ST_GeomFromText('LineString (278601.0234000000054948
4295292.71929999999701977, 278598.71919999999227002
4295290.49340000003576279, 278589.06283691781572998
4295303.48101469129323959, 278605.49300000001676381
4295297.03689999971538782, 278601.0234000000054948
4295292.71929999999701977)',3857));
insert into public.tpoly (geom)
select st_buffer(geom,1, 'quad_segs=0') from public.tline where id = 1;
}}}
The resulting buffer is attached.
--
Ticket URL: <https://trac.osgeo.org/geos/ticket/1022#comment:1>
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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