[auscope-geosciml] 4326 axis order

Simon.Cox at csiro.au Simon.Cox at csiro.au
Sat Oct 23 09:33:15 EDT 2010


It's not GML that made this decision, it is EPSG.

Simon Cox
Research Scientist
CSIRO Earth Science & Resource Engineering

Phone: +61 8 6436 8639 | Fax: +61 8 6436 8555 | Mobile: 0403 302 672
simon.cox at csiro.au<mailto:lyndelle.broadfoot at csiro.au> | www.csiro.au<http://www.csiro.au/>
Address: ARRC, PO Box 1130, Bentley, WA 6102, Australia
________________________________
From: auscope-geosciml-bounces at lists.arcs.org.au [auscope-geosciml-bounces at lists.arcs.org.au] On Behalf Of Boisvert, Eric [Eric.Boisvert at RNCan-NRCan.gc.ca]
Sent: Friday, 22 October 2010 8:31 PM
To: auscope-geosciml at lists.arcs.org.au
Subject: [auscope-geosciml] 4326 axis order



Another thing that we should be aware of, is that GML 3.2 fixes (at least in the documentation) the axis order of EPSG:4326, which is y,x and not x,y.

http://www.ogcnetwork.net/node/491

This means that we must be careful that WFS services actually honour the axis order.

For the Groundwater Interoperability Experiment, we suggested that services that generates 3.1.1 GML and older will use x,y axis order while GML above 3.1.1 will use y,x axis order.

Eric

================================================================
Eric Boisvert
Spécialiste TI-GI / IT-IM specialist
Eric.Boisvert at rncan.gc.ca, 418-654-3705, facsimile/télécopieur
418-654-2615
490, rue de la Couronne, Québec (Québec), G1K 9A9
490, rue de la Couronne, Quebec, Quebec, G1K 9A9

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Digital Cartography and Photogrammetry Laboratory (DCPL)
Commission géologique du Canada (Québec) / Geological Survey of Canada (Quebec)
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Gouvernement du Canada / Government of Canada
http://cgc.rncan.gc.ca/org/quebec
http://cgc.rncan.gc.ca/dir/index_f.php?id=4186 / http://cgc.rncan.gc.ca/dir/index_e.php?id=4186






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