On Mon, May 08, 2017 at 08:49:24PM +0300, Jukka Rahkonen wrote: > Jukka Rahkonen kirjoitti 2017-05-08 17:33: > >Jukka Rahkonen kirjoitti 2017-05-08 15:48: > > >I can still find the same comments about polygon validity in > >https://github.com/locationtech/jts/blob/master/modules/core/src/main/java/org/locationtech/jts/operation/IsSimpleOp.java > >beginning from line 205 > > > > /** > > * Computes simplicity for polygonal geometries. > > * Polygonal geometries are simple if and only if > > * all of their component rings are simple. > > * > > * @param geom a Polygonal geometry > > * @return true if the geometry is simple > > */ > > > > > I was remembering that JTS list is a bit slow with answers so I compiled JTS > from master https://github.com/locationtech/jts. > IsSimple with POLYGON ((320 620, 460 620, 460 500, 320 620, 320 500, 180 > 500, 180 620, 320 620)) gives false so JTS and GEOS have different behavior. > > I am new with PostGIS project, do the developers consider this as a bug and > do you want me to file an issue? If yes, would it be a GEOS bug > https://trac.osgeo.org/geos/newticket?
Yes please, it'd be a GEOS bug but it's also useful to file it as a PostGIS bug (in case there's any shortcircuit there). --strk; _______________________________________________ postgis-users mailing list [email protected] https://lists.osgeo.org/mailman/listinfo/postgis-users
