Also, the rdf representation for Geonames is described here: http://www.geonames.org/ontology/documentation.html
On Jun 22, 2012, at 5:08 PM, Dan Brickley <dan...@danbri.org> wrote: > On 22 June 2012 21:39, Joshua Lieberman <j...@oklieb.net> wrote: >> This is a nice way of creating cross-examples, though: >> http://openlayers.org/dev/examples/vector-formats.html > > Fantastic :) > > Here's a crude approximation of the island of Korcula, in Croatia, as > hand-drawn by me just now. > > In GeoRSS with RSS2, > > <item > xmlns="http://backend.userland.com/rss2";><title></title><description></description><georss:polygon > xmlns:georss="http://www.georss.org/georss";>42.984695434571 > 17.052154541015 42.969589233399 17.108459472656 42.962722778321 > 17.140045166015 42.942123413087 17.166137695312 42.929763793946 > 17.181243896484 42.922897338868 17.212829589844 42.898178100587 > 17.208709716797 42.898178100587 17.177124023437 42.895431518555 > 17.090606689453 42.911911010743 16.964263916015 42.87208557129 > 16.839294433594 42.888565063477 16.833801269531 42.895431518555 > 16.732177734375 42.892684936524 16.725311279297 42.910537719727 > 16.670379638672 42.896804809571 16.656646728515 42.927017211915 > 16.618194580078 42.95997619629 16.658020019531 42.962722778321 > 16.658020019531 43.001174926758 16.603088378906 43.008041381837 > 16.658020019531 42.979202270508 16.857147216797 42.984695434571 > 17.052154541015</georss:polygon></item> > > In GeoJSON, > > {"type":"Feature", "properties":{}, "geometry":{"type":"Polygon", > "coordinates":[[[17.052154541015, 42.984695434571], [17.108459472656, > 42.969589233399], [17.140045166015, 42.962722778321], > [17.166137695312, 42.942123413087], [17.181243896484, > 42.929763793946], [17.212829589844, 42.922897338868], > [17.208709716797, 42.898178100587], [17.177124023437, > 42.898178100587], [17.090606689453, 42.895431518555], > [16.964263916015, 42.911911010743], [16.839294433594, 42.87208557129], > [16.833801269531, 42.888565063477], [16.732177734375, > 42.895431518555], [16.725311279297, 42.892684936524], > [16.670379638672, 42.910537719727], [16.656646728515, > 42.896804809571], [16.618194580078, 42.927017211915], > [16.658020019531, 42.95997619629], [16.658020019531, 42.962722778321], > [16.603088378906, 43.001174926758], [16.658020019531, > 43.008041381837], [16.857147216797, 42.979202270508], > [17.052154541015, 42.984695434571]]]}, "crs":{"type":"name", > "properties":{"name":"urn:ogc:def:crs:OGC:1.3:CRS84"}}} > > In KML, > > <kml xmlns="http://earth.google.com/kml/2.0";><Folder><name>OpenLayers > export</name><description>Exported on Fri Jun 22 2012 22:51:32 > GMT+0200 > (CEST)</description><Placemark><name>OpenLayers_Feature_Vector_354</name><description>No > description > available</description><Polygon><outerBoundaryIs><LinearRing><coordinates>17.052154541015, > 42.984695434571 17.108459472656, 42.969589233399 17.140045166015, > 42.962722778321 17.166137695312, 42.942123413087 17.181243896484, > 42.929763793946 17.212829589844, 42.922897338868 17.208709716797, > 42.898178100587 17.177124023437, 42.898178100587 17.090606689453, > 42.895431518555 16.964263916015, 42.911911010743 16.839294433594, > 42.87208557129 16.833801269531, 42.888565063477 16.732177734375, > 42.895431518555 16.725311279297, 42.892684936524 16.670379638672, > 42.910537719727 16.656646728515, 42.896804809571 16.618194580078, > 42.927017211915 16.658020019531, 42.95997619629 16.658020019531, > 42.962722778321 16.603088378906, 43.001174926758 16.658020019531, > 43.008041381837 16.857147216797, 42.979202270508 17.052154541015, > 42.984695434571</coordinates></LinearRing></outerBoundaryIs></Polygon></Placemark></Folder></kml> > > > ... so what might we say of it in Schema.org? > > Well, maybe we would say it's an Island? Pretty tough, > http://schema.org/Landform has Volcano and Continent but no island. > Are there standard medium-sized lists of expected values we should be > using here? > > Ok so picking from http://schema.org/Place ... let's go with > http://schema.org/TouristAttraction. Maybe we'll describe the island, > and then use Place's containedIn relation to describe the city (also > called Korcula) that's on the island. > > So, it's a thing of type http://schema.org/TouristAttraction ... it > has a 'geo' property pointing to a thing that is of type > http://schema.org/GeoShape ... which in turn has a 'polygon' property > whose value is the Text, > > "17.052154541015, 42.984695434571 17.108459472656, 42.969589233399 > 17.140045166015, 42.962722778321 17.166137695312, 42.942123413087 > 17.181243896484, 42.929763793946 17.212829589844, 42.922897338868 > 17.208709716797, 42.898178100587 17.177124023437, 42.898178100587 > 17.090606689453, 42.895431518555 16.964263916015, 42.911911010743 > 16.839294433594, 42.87208557129 16.833801269531, 42.888565063477 > 16.732177734375, 42.895431518555 16.725311279297, 42.892684936524 > 16.670379638672, 42.910537719727 16.656646728515, 42.896804809571 > 16.618194580078, 42.927017211915 16.658020019531, 42.95997619629 > 16.658020019531, 42.962722778321 16.603088378906, 43.001174926758 > 16.658020019531, 43.008041381837 16.857147216797, 42.979202270508 > 17.052154541015, 42.984695434571". > > As discussed earlier, the first and last pairs are identical. > > I could write this out long-hand in Microdata or RDFa Lite, but the > basic model is the key concern. I think we're getting somewhere, > thanks for your help! > > Nearby in the Web, Wikipedia has pages for both island and city, > http://en.wikipedia.org/wiki/Kor%C4%8Dula and > http://en.wikipedia.org/wiki/Kor%C4%8Dula_(town) > > It's also btw the alleged-birthplace-of > http://en.wikipedia.org/wiki/Marco_Polo but let's get the basics > working first :) > > cheers, > > Dan _______________________________________________ Geowanking mailing list Geowanking@geowanking.org http://geowanking.org/mailman/listinfo/geowanking_geowanking.org
