[postgis-users] Computing area in km^2 from 4326 geometries

Ethan Alpert ealpert at digitalglobe.com
Tue Sep 28 14:56:31 PDT 2004


How does one compute areas in km^2? I was thinking something like
area2d(transform(the_geom,<someEPSG>)). 
How do others do this?
 
Thanks!
 
-e
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