[postgis-users] Computing a centroid on GEOGRAPHY objects

[Sandro Santilli]

On Thu, Dec 06, 2012 at 09:34:53PM +0100, Ed Linde wrote:

> I know there is a centroid computation function in Postgis, but it seems to
> only work on a geometry type.
> The lat/long coordinates are spread all across the globe and hence I cannot
> convert it to local UTM formats because there is a discrepancy when going
> across different zones!

I wonder how the centroid of points spread across the globe would look like.
Jules ? 

--strk;