Opps wrong address sent for Geos.
Sent: Monday, October 5, 2020 3:21 PM To: 'PostGIS Development Discussion' <postgis-de...@lists.osgeo.org> Cc: 'geos-devel-boun...@lists.osgeo.org' <geos-devel-boun...@lists.osgeo.org> Subject: When did ST_BuildArea change I noticed this before but came across it again. http://postgis.net/docs/manual-dev/ST_BuildArea.html At the time I created this page which I am guessing was like circa 2008 This query created a gaping hole. Now it doesn't so the docs are wrong SELECT ST_BuildArea(ST_Collect(line,circle)) FROM (SELECT ST_Buffer( ST_MakeLine(ST_MakePoint(10, 10),ST_MakePoint(190, 190)), 5) As line, ST_Buffer(ST_GeomFromText('POINT(100 90)'), 50) As circle) As foo; --this creates the same gaping hole --but using linestrings instead of polygons SELECT ST_BuildArea( ST_Collect(ST_ExteriorRing(line),ST_ExteriorRing(circle)) ) FROM (SELECT ST_Buffer( ST_MakeLine(ST_MakePoint(10, 10),ST_MakePoint(190, 190)) ,5) As line, ST_Buffer(ST_GeomFromText('POINT(100 90)'), 50) As circle) As foo; Docs say this: But when I run in pgAdmin4 I get this: Does anyone know when this behavior changed and why? I'm assuming it is a GEOS change, so cc'ing GEOS dev as well. More depressing is my signature symmetric podded Bee Hive on this page (circa 2010( http://postgis.net/docs/manual-dev/ST_LongestLine.html Which looked like this (minus the longest line of course) - beautiful isn't it? Now looks like a shadow of its former self Thanks, Regina
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