[georss] [Fwd: Re: [Opensearch-discuss] Spatio-temporal query extension]

[Gregor J. Rothfuss]

Allan Doyle wrote:

 >  From the spec, this is as detailed as the search template gets:
 >
 > template="http://example.com/?q={searchTerms}"
 >
 > I would say that the geo world wants to define the details of what
 > would go into the "searchTerms" field.
 >
 > 	Allan


now is the time to bring this up again. i'd be happy to work on a draft. 
we could even start with the BBOX stuff.

-------- Original Message --------
Subject: Re: [Opensearch-discuss] Spatio-temporal query extension
Date: Wed, 14 Mar 2007 07:50:11 -0700
From: DeWitt Clinton <dewitt at unto.net>
To: Mike Rylander <mrylander at gmail.com>
CC: Pat Cappelaere <pat at cappelaere.com>, 
opensearch-discuss at lists.opensearch.org,	Gregor J. Rothfuss 
<gregor at apache.org>
References: <C21C7864.22F7E%pat at cappelaere.com>	 
<b918cf3d0703140730q3692b060h42c8354bbf03dd1b at mail.gmail.com>

This is something I've wanted to see for a long, long time.

A while back I worked on a microformat-based approach (hCard and adr/geo)
for a local search product I was involved in.  That product never shipped,
so unfortunately the specification was never published.  The nice thing
about that approach was that it layered well with more structured elements,
like georss and gml, but it also degraded very nicely when accessed by a
"dumb" client spoke only html.

You can read some of the general thinking about how to extend OpenSearch
with microformats here:

 
http://www.opensearch.org/Documentation/Recommendations/OpenSearch_and_microformats


And here:

   http://blog.unto.net/work/opensearch-and-microformats/

These days, while I'm still keen on seeing something done with microformats,
I'd be content to simply see a more straightforward proposal written (and a
working server implementation!) that incorporates a bit of georss, gml, or
kml, etc.

Pat, I know you've been having these chats with Gregor Rothfuss as well
(cc-ed here).  My hope is that this converges on a draft soon, and I'd be
very happy to publish it on the opensearch.org website for all to share.


-DeWitt


On 3/14/07, Mike Rylander <mrylander at gmail.com> wrote:
>
> On 3/13/07, Pat Cappelaere <pat at cappelaere.com> wrote:
> > I would like to use OpenSearch and extend it to support spatio-temporal
> > queries.
> > Example: bbox=lat1,long1,lat2,long2
> >          from=datetime, to=datetime
> >
> > Has anyone done anything like that?
> > This would be a great step forward for searching geospatial data nodes.
> > I would appreciate feedback.
>
> That sounds like a great extension, actually, and something I'd like
> to implement eventually.  The one other thing that I'd really like
> would be the option of a bounding circle defined by point and radius.
> Often that's the right way to find entries "within X miles" and such.
>
> Do you have a demo implementation at this point?
>
> > Pat.
> >
>
> --
> Mike Rylander
> mrylander at gmail.com
> GPLS -- PINES Development
> Database Developer
> http://open-ils.org
> _______________________________________________
> opensearch-discuss mailing list
> opensearch-discuss at lists.opensearch.org
> http://lists.opensearch.org/mailman/listinfo/opensearch-discuss
>

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