rajsingh.org blog

the geoweb, interoperability, OGC, and random rants
January 27th, 2010

Who says Google doesn’t care about standards? When playing around with the RSS feed from Picasa Web Albums, I was pleasantly surprised to see full-blown GeoRSS GML for the geo-located items. In fact, they are recording both an Envelope and a Point for the photo. I don’t know where the Envelope comes from, because the UI only allows you to specify a point, but oh well.

<georss:where>
   <gml:Envelope>
      <gml:lowerCorner>42.4857087 -71.2902409</gml:lowerCorner>
      <gml:upperCorner>42.4984298 -71.265822</gml:upperCorner>
   </gml:Envelope>
   <gml:Point>
      <gml:pos>42.4920693 -71.2780315</gml:pos>
   </gml:Point>
</georss:where>

Now I’d just like to know why they are using RSS 2.0 with little bits of Atom sprinkled here and there…

November 30th, 2009

I’ve posted some updates on GeoRSS use by twitter, weogeo, Geospatial One-Stop, and Adobe Air this year on the GeoRSS Weblog.

March 3rd, 2009

After the untimely demise last year of my sandbox server at MIT, I haven’t been good at advertising (or even doing) technology experiments. I’m finally getting my act together now, and have a few interesting things out on the Interwebs:

Coordinate projection service is a useful little thing that also is a nice sample of GeoRSS-GML

US Cities lets you query a database of US cities by name or bounding box, and returns the results in either GeoAtom (Atom + GeoRSS) or BXFS. It’s also OpenSearch enabled, so you can add it as a search engine type in Firefox.

February 3rd, 2008
Investigating the location of the WUMB transmitter, Doc Searls notes that while the Live Maps birdseye view is awesome, it’s way too hard to find and share. John Udell picks up the thread and suggests a workaround, but that’s not the point of my mentioning this.

Personally, I haven’t had much of a problem navigating in Live Maps, but I have had no end of problems figuring out how to work with “collections”, and get GeoRSS and/or KML streams of the collections I create. I always have to go back to the blog entries I’ve bookmarked to remember how to make the site do what I want it to do, and I’m probably a more savvy user than their target audience. It’s a shame because the Virtual Earth group has been coming up with some terrific stuff in the last year or so.

So to paraphrase Godspell — via the Bible — my message to the Virtual Earth team is, stop hiding your light under a bushel and re-think that UI my friends.

November 5th, 2007

Joe Gregorio notes in The end of the AtomPub WG that the Atom Publishing Format and Protocol WG (atompub) in the Application Area has concluded. Developers can go into full programming mode knowing that the encodings and interfaces aren’t changing any time soon. Thanks AtomPub WG for a great standard.