georss leveraging the rss ecosystem

Mikel Maron GeoRSS UK Geospatial Mashup

GeoRSSleveraging the RSS ecosystem

Mikel Maron [email protected] / OpenStreetMap / GeoRSS

http://brainoff.com/weblog/

UK Geospatial Mashup, October 20, 2006


GeoRSS?

not a complicated tech¡an agreement!

we want to share place


the archetypical mashup


Where's the data in the mashup?


RSS?

“the unix pipe of the internet”


In the Wilds


georss.orgOGC lightweight standard

W3C Incubator


Other Properties

elev floor radius <georss:elev> <georss:floor> <georss:radius>

featuretypetag featurename relationshiptag<georss:featuretypetag> <georss:featurename> <georss:relationshiptag>


GML and Simple

<georss:where> <gml:Point> <gml:pos>45.256 -71.92</gml:pos> </gml:Point></georss:where>

<georss:point>45.256 -71.92</georss:point>


GeoRSS Simple

<entry> <title>M 3.2, Mona Passage</title> <link href="http://example.org/2005/09/09/atom01"/> <id>urn:uuid:1225c695-cfb8-4ebb-aaa80da344efa6a</id> <updated>2005-08-17T07:02:32Z</updated> <summary>We just had a big one.</summary> <georss:point>45.256 -71.92</georss:point> </entry>


Simple Line, Polygon, Box

<georss:line>45.256 -110.45 46.46 -109.48 43.84 -109.86

</georss:line>

<georss:polygon>45.256 -110.45 46.46 -109.48 43.84 -109.86 45.256 -110.45

</georss:polygon>

<georss:box>42.943 -71.032 43.039 -69.856</georss:box>


<entry> <title>M 3.2, Mona Passage</title> <link href="http://example.org/2005/09/09/atom01"/> <id>urn:uuid:1225c695-cfb8-4ebb-aa80da344efa6a</id> <updated>2005-08-17T07:02:32Z</updated> <summary>We just had a big one.</summary> <georss:where> <gml:Point> <gml:pos>45.256 -71.92</gml:pos> </gml:Point> </georss:where></entry>

GeoRSS GML Point


GML Line, Polygon, Box <georss:where>

<gml:LineString>

<gml:posList>

45.256 -110.45 46.46 -109.48 43.84 -109.86

</gml:posList>

</gml:LineString>

</georss:where>

<georss:where>

<gml:Polygon>

<gml:exterior>

<gml:LinearRing>

<gml:posList>

45.256 -110.45 46.46 -109.48 43.84 -109.86 45.256 -110.45

</gml:posList>

</gml:LinearRing>

</gml:exterior>

</gml:Polygon>

</georss:where>

<georss:where>

<gml:Envelope>

<gml:lowerCorner>42.943 -71.032</gml:lowerCorner>

<gml:upperCorner>43.039 -69.856</gml:upperCorner>

</gml:Envelope>

</georss:where>


Feed Format Neutral

RSS1.0 / RDF / RSS 2.0 / Atom / Microformat

Simple / GML / W3C


What can you do with it?


USGS Earthquake GeoRSS feed


EC JRC Tsunami Simulator


GDACS


Scattershot of Potentials

Monitoring Geographic Wikis

Distribution Channel for Map Changes

Mobile

Sensors

GIS Time Navigation

Tear down the walls


Support ...


Commercial GIS

ESRI

CadCorp

MapInfo


Open Source Support

clients: MapBuilder, OpenLayers, worldKit, WorldWind plugin

libraries: Mapstraction, SPARQL geo extensions, Java Rome

servers: GeoServer

projects: GeoBliki, FoFRedux, GeoPress

wouldbenice: GDAL/OGR, GPSBabel


Yahoo!

flickrmaps apiUpcomingWeatherTraffic


Microsoft

Version 3 of the Virtual Earth Map Control

Publish, Search, and Subscribe to GeoRSS GML


Google

Tools to transform GeoRSS -> KML

And extensions to view GeoRSS in Gmaps API


More Web 2.0Nestoria

Ning

Platial

Tagzania

TripTracker

(http://del.icio.us/tag/georss/)


Aggregation!

placedb.complatial.com/todayfofredux.sourcefourge.net/exploreourpla.net/mylocalguru.com/blockrocker.com/jeffpalm.com/geo/

mapufacture.com/


mapufacture.com


little weather map


How's the weather for Islington house hunting?


OSM and Geonames Activity


geographic feed search


GeoRSS export


GeoPress


automagicly aggregated


</hype>


Loads of potential, but stubsWhat can these do?How will practices be collected?

Folksonomic Properties<georss:featuretypetag/> <georss:relationshiptag/>


<item> <title>Sample Image</title> <media:content src="http://sample.com/map.jpg" type="image/jpg" /> <georss:box>

30 110 45 115 </georss:box> <georss:relationshiptag>image-extent</georss:relationshiptag>

</item>

Image Overlays


Confusion of Multiple Flavors, Namespaces

W3C vs Simple vs GML

Geo “RSS”

What's the Point, GeoRSS?


How does GeoRSS stay open as interest gains and implementations multiply? How to govern openness?

How does a “community standard” stay accessible within membership based standards bodies?

Microformats model?

An Open Standards Process?


Sensors .. ObsRSS Transport Data Lightweight Geospatial Catalog Spec

Can a GeoRSS-like process be applied to other heavy weight standards?


Is a Microformat serialization of GeoRSS appropriate?What is the content? hAtom is sillyHuman Readable?Reusing HTML?

Speaking of Microformats


With huge spreads of GeoRSS being published (flickr, weather, for example)

What's the best way to aggregate a GeoRSS search result?

How to advertise feeds?A9 OpenSearch? Catalogs

bbox is enough for querying? WFS Basic

Aggregation and Querying


Thanks!

Mikel Maron [email protected] / OpenStreetMap / GeoRSS

http://brainoff.com/weblog/

UK Geospatial Mashups, October 20, 2006

georss leveraging the rss ecosystem

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