Yep, I do use QGis snapping which is essential. I'm talking about errrors in the 15 or 16 th digit! Usually it is nothing to worry about, but st_buildArea is very fragile.
The point of this is being able to edit only geometry (no topology) without plugin, which is not available for every version / GIS. I feel if you want to edit topology information you need dedicated tools (like the pluggin, or maybe using the function ST_ChangeEdgeGeom, which in can't use in my use case ) Cheers, Rémi-C 2014-08-05 20:17 GMT+02:00 Sandro Santilli <s...@keybit.net>: > On Tue, Aug 05, 2014 at 08:04:55PM +0200, Rémi Cura wrote: > > Hey, > > I noticed that QGIs is introducing slight errors when editing topology > > edge_data layer (with the regular edition, no pluggin ). > > > > This is dangerous because function such a s ST_getFaceGeometry won't work > > afterward (in some case). > > Are you aware of the QGIS built-in snapping support ? > Settings -> Options -> Digitizing > Settings -> Snapping options > > The controlled way to edit edges would be via ST_ChangeEdgeGeom, which > ensures topology is also preserved (something that would need to be > added to the topological editing toolbox...) > > --strk; > _______________________________________________ > postgis-users mailing list > postgis-users@lists.osgeo.org > http://lists.osgeo.org/cgi-bin/mailman/listinfo/postgis-users >
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