Dear Sandro,

It's nice to see that it is actually planed! As for contributions, I would have gladly add ST_Union in the wiki, e.g. with my reproducible example, but I don't even know if it is a PostGIS or GEOS approach... It's hard to help when you don't know the mechanics of the engine!

Mathieu.


Le 17/12/2012 09:51, Sandro Santilli a écrit :
On Sat, Dec 15, 2012 at 11:39:05PM -0500, Mathieu Basille wrote:

there shouldn't be a parameter of tolerance in ST_Union to make this
more transparent and flexible to the user?

Indeed. There should !
But there's none as of today.
See the wiki for some ideas/plans and feel free to contribute
to the discussion
http://trac.osgeo.org/postgis/wiki/ToleranceDiscussion

--strk;
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