On 19 May 2010 16:29, Stephen Cavilia <aili...@gmail.com> wrote: > > > This is what I would do. Calculate a rough lat-lon bounding box that > approximates the area you want, filter any features that intersect that > box, then reproject just those into UTM for calculating the actual > distances. Or a more accurate geodesic/great circle distance, but UTM > will be close enough over relatively small areas. >
+1 Else I would strongly suggest you have a look at Postgis 1.5 and the geography type. Emilie Laffray
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