[georss] Quick Fire Summary
Andrew Turner
ajturner at highearthorbit.com
Mon Apr 30 13:59:46 EDT 2007
This was discussed at the other (smaller attendance) meeting several
weeks ago. These proposals should be summarized by their respective
proponents and linked to from this page:
http://georss.org/drupal/proposals
(soon to be without the drupal/)
Then in a week or so we will put up a Poll on that page and open for
comments. Voting will be by simple majority (if my memory servers
rigth). The roadmap is to have these resolved and announced at
Where2.0 at the end of May (GeoRSS 1.1?)
Andrew
On 4/30/07, Peter Borissow <peter.borissow at yahoo.com> wrote:
> Thanks for the summary Christopher.
>
> Was there any discussion as to when multiple geometries and "georss:when" might be introduced? The following paragraph suggests that these 2 proposals might be off the table:
>
> "Extending GeoRSS should be secondary to well-documented fully exampled current-spec driven code with implementations. There are far more important things to think about than tweaking the spec to include some niche use case."
>
>
> Thanks,
> Peter
>
>
> ----- Original Message ----
> From: Christopher Schmidt <crschmidt at metacarta.com>
> To: georss at lists.eogeo.org
> Sent: Friday, April 27, 2007 8:21:26 PM
> Subject: [georss] Quick Fire Summary
>
>
> Quickfire summary of discussion during GeoRSS meeting. (I'm slightly
> inebrietaed, so anything you have questions about, please reply rather
> than assume the worst):
>
> * The GeoRSS Drupal website is ready to go. On Monday, we will switch
> the site to the Drupal site. If you have problems with the drupal
> site ( http://georss.org/drupal/ ) speak this weekend to get them
> fixed.
>
> * GeoRSS NS is simple geometry description for the web of content.
> This means that it can be used in much more than RSS. However, it's
> not 'feature description' -- its not GML. It's not meeting the needs
> of people who need complex feature description -- it's a framework
> for simple description of web content. (Despite what was said earlier
> on the list, GML is *not* the de facto simple encoding of Geo Data on
> the web, nor will it be, due to its reliance on XML Schema and its
> relative complexity compared to GeoRSS Simple.)
>
> * GeoRSS GML uses gml properties in the reverse way that every other
> GML example on the web seems to use them. (i've been using lots of
> WFS servers via OpenLayers, and they always spit out x,y, not y,x).
> As a result of this, we should make it VERY CLEAR on all pages that
> we are using y,x. This probably means that we should add examples
> that are in places like new zealand, and hawaii: well outside the
> comfortable -90 -> 90 box where there can be confusion.
>
> * georss:when should be proposed, if people want it. However, in
> general, GML properties are at best not recommended, and at worst
> actively discouraged, in favor of two alternatives:
>
> * Encoding GML information inside alternative existing
> atom-friendly namespaces
>
> * Creating a "gml feature" property into which a full GML feature
> can be added -- so, if you need to transport GML information with
> your GeoRSS feed, you may want to create/propose a georss:feature
> property, which then lets you refer to a full GML Feature,
> including 'time', full gml geometry, etc.
>
> * Styling via KML should probably be a 'best practice' recommendation,
> but probably not a 'part of GeoRSS' -- something to be described by
> example, since it applies equally to all RSS, rather than something
> that is a normative part of a spec. (The alternatives here are
> basically KML / SLD -- SLD seems likely to be too complex, and lacks
> the built in remote-refrence semantics that the KML styling mechanism
> has -- at least to the knowledge of the participants in the conf
> call.)
>
> * Visualization of GeoRSS in *feed readers* -- that is, making clear
> to the general world that creating a georss feed has value to
> feed consumers, rather than just producers and gis consumers.
> Bloglines, NetNewsWire, even Firefox should *do something with the
> geo* -- the lack of geo support puts geo producers in a crappy
> situation.
> * Mime type doesn't help this. There are no applications to pass
> the mime type off to. Once there are, then it makes sense to
> re-discuss the mime type issue.
>
> In general:
>
> * GeoRSS Simple is Simple Feature definition for the content-based web.
> * GeoRSS GML is a small set of extension (georss:where) wrapped around
> GML geometry.
> * Extending GeoRSS should be secondary to well-documented fully
> exampled current-spec driven code with implementations. There are far
> more importan things to think about than tweaking the spec to include
> some niche use case.
> * GeoRSS needs to get RSS readers to understand Geo. This is the single
> thing that most limits adoption -- no feedreaders with Geo support
> means no incentive to publish geo in RSS.
> * Styling is cool. Needed for some cases, not for most.
> * GeoRSS uses a simple feature encoding that is good for lots of things
> that aren't RSS. Accentuate that via examples and prose.
>
> I think that's the essence of our conversation. Again, this isn't a
> smoke-filled room: arguments welcome :)
>
> --
> Christopher Schmidt
> Boy Genius, MetaCarta
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--
Andrew Turner
ajturner at highearthorbit.com 42.2774N x 83.7611W
http://highearthorbit.com Ann Arbor, Michigan, USA
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