[geos-devel] JTS/GEOS performance

[strk at refractions.net]

On Fri, Jan 28, 2005 at 10:46:42AM -0700, Chapman, Martin wrote:

(cuts)

> For a comparison, we tried to use geos with postgresql and used the
> POSTGIS intersect method.  We found it very slow so we wrote our own
> user-defined intersect function.  Ours is 109 times faster on a million
> plus geometries.  That means a one second query for us takes GEOS 109
> seconds.
> 
> Martin

That's interesting, what algorithm did you use ?
Did you compare it to distance(geom, geom) ?

--strk;