Gordon Sim wrote:
Carl Trieloff wrote:
Jonathan wrote a going sailing example using the XML Exchange that
does something similar with
weather data. should be able to google it, or get him to post copy it
to the list.
http://www.balisage.net/Proceedings/html/2008/Robie01/Balisage2008-Robie01.html
Yes - I used zip codes in my exanple, though.
It's useful to be able to combine geographical criteria with other
criteria, as the above example demonstrates. We could easily write GIS
functions as external functions that could be used in queries.
I now have a working version of the XML Exchange that does not require
XML content in the body of the message, so this approach would also
support GIS purely in message headers. I'll check it in when I'm
convinced that a bug I thought I saw isn't really there.
Jonathan
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