[georss] Intended lat/long order

[Christopher Schmidt]

On Thu, Nov 08, 2007 at 09:16:05PM -0800, Ron Lake wrote:
> Hi,
> 
>  
> 
> The order is specified in the GML encoding for the CS (Note that the CRS
> is made of many pieces of which the CS is one).  If you expand the CRS
> in the UI you will see:

Okay. I'm going to start here:

http://www.epsg-registry.org/export.htm?gml=urn:x-ogc:def:crs:EPSG:4326

This is a CRS. I think.

>From there, I can get to
http://www.epsg-registry.org/export.htm?gml=urn:x-ogc:def:cs:EPSG:6422

but that's 6422, not 6433. 6422 seems to have the information I want,
but you said that I should be looking at 6423: How should I have gotten
there from
http://www.epsg-registry.org/export.htm?gml=urn:x-ogc:def:crs:EPSG:4326
?

Oh, I think maybe I see: I should have followed
<epsg:sourceGeographicCRS xlink:href="urn:x-ogc:def:crs:EPSG:4979"/> to 
http://www.epsg-registry.org/export.htm?gml=urn:x-ogc:def:crs:EPSG:4979
from which I could get to
http://www.epsg-registry.org/export.htm?gml=urn:x-ogc:def:cs:EPSG:6423.

For the record, I have no clue how I'd have found that without knowing
it was there and trying every link. (And of course, they're not actually
links, so I can't actually dereference them in a machine-friendly way.)

So which does GeoRSS use? EPSG:4326, as I've always thought? Or
EPSG:4979, if you think that we're talking about EPSG:6423 for a CS? 

> This is the CS definition that is reflected in the UI.  You will see Lat
> precedes Lon.  Note that many other CRS could use the same CS.
> 
> Sorry if I was not clear the first time.

Well, from what I'm told, there was a screenshot or something in your
post, which would change things for me. I wasn't looking at the UI, I
was looking at the machine-readable metadata. 

Regards,
-- 
Christopher Schmidt
Web Developer