[geos-devel] Unary Union (was: rgeos interface to R classes)
strk
strk at keybit.net
Fri Feb 5 03:27:57 EST 2010
On Mon, Feb 01, 2010 at 09:48:57AM -0800, Martin Davis wrote:
> The technique of using buffer(0) to union polygons is now deprecated in
> favour of using Unary Union (Geometry.union() - not sure what the exact
> GEOS signature is). Unary Union is usually faster and more robust than
> the previous technique. You might want to check this out.
Uhm, I might have missed this in my last port (either completely
or just the outer interface). Is the JTS repository finally landed
so to take a look ? I'm interested in evaluating its use for "geometry
cleanup" purposes (http://trac.osgeo.org/postgis/ticket/399)
--strk;
() Free GIS & Flash consultant/developer
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