[OSGeo-Discuss] Input regarding Axis Order Confusion

Paulo Marcondes paulomarcondes at gmail.com
Thu Dec 14 10:24:12 PST 2006

2006/12/13, Arnulf Christl <arnulf.christl at ccgis.de>:

> Nonetheless I wonder whether it really makes sense to write down something
> like (y,x,z) when noting something down including height. It does not look
> as stupid if you code it in GeoRSS where height has its own tag "elev".
> Yeah, but what mess is this?

Arnulf, thou art not alone !

Yeah, I mean, I dislike the current arrangement too!
I work in the oil industry and we have some different conventions wrt
the axis order.
Geologists like it the UTM way, x=E y=N.
Geophysicists x,y are relative to survey patterns (they vary wildly!)
Reservoir Engineers have it like the CG guys, sometimes they have in a
totally un-understandable way.

Z may mean depth (increase downward) or height (increase upward)

This is the beauty of standards - there are so many to choose from!
Paulo Marcondes = PU1/PU2PIX
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