[postgis-tickets] [PostGIS] #3138: ST_OffsetCurve returns EMPTY line from non-empty input
PostGIS
trac at osgeo.org
Thu May 28 00:46:02 PDT 2015
#3138: ST_OffsetCurve returns EMPTY line from non-empty input
---------------------+--------------------------
Reporter: strk | Owner: strk
Type: defect | Status: new
Priority: medium | Milestone: PostGIS GEOS
Component: postgis | Version:
Keywords: |
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If the line is short relatively to the offset, OffsetCurve can return
EMPTY:
{{{
=# select ST_AsText(ST_OffsetCurve('LINESTRING(24 0,24.00001
0)'::geometry, 3));
LINESTRING(24 3,24.00001 3)
=# select ST_AsText(ST_OffsetCurve('LINESTRING(24 0,24.000001
0)'::geometry, 3));
LINESTRING EMPTY
}}}
Spotted here: https://github.com/azavea/nyc-trees/issues/1728
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Ticket URL: <https://trac.osgeo.org/postgis/ticket/3138>
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