Google Earth business plans, part the first

Google Globe‘s Globe Assistant dynamic network link has just gotten some added functionality. If you already have it installed you will notice that the Assistant now checks a BBC newsfeed for stories inside the bounding box of your field of vision and then displays those, in addition to the location entries submitted by users at the site.

The Globe Assistant actually does some pretty nifty stuff via that bounding box “API”: If you fly out too far, it will tell you you need to zoom in before it can deliver content. It will also tell you if no news is available in your field of view. In other words, the network link delivers KML in response to your location that is rather more varied than what I’ve seen until now.

At the same time, however, the user submitted content does not seem to be vetted for quality or duplicates, and is business friendly, welcoming company plugs rather than considering them to be spam. At first sight this might make the value of the Globe Assistant’s content a little dubious, but then you realise that the Assistant is actually a demo for a product, showcased at GlobeAssistant.com: Globe Assistant is being marketed to travel agents, real estate companies and news organizations as a means of delivering private or specialized content to potential customers and readers. They’d buy their own Globe Assistant that links to their own data (including RSS feeds), and send that to people they want to reach. (I think that’s the plan.)

If the interactivity is as robust as it seems, this could prove a nice little turnkey solution for realtors, and GoogleGlobe’s Erwin Nikkels may well become the first person to actually make any money off the Google Earth application:-)

(Though, if I may be so bold, in that case the site may want to consider differentiating itself a little more from the Google look. The first time I visited I thought it was a Google site, until I read the small print a few days later.)

Jason and the polygons

Jason labors onwards in his sysiphean task of converting ESRI shapefiles into lots of polygons in Google Earth KML, but notes that GIS conversion expert Safe Software’s FME application now tentatively supports automatic conversion to and from Google — for free, no less. And to lots of other file formats too, besides.

So if you have a lot of data to convert, you’ll want to check this out, preferably before you start.

GeoDRM. Who’d have guessed?

After yesterday’s news that WMS server data can easily be served as KML, I emailed The Atlas of Canada, which serves WMS for free, if they wouldn’t consider opening up their data to Google Earth.

The answer? “We’re working on it”:

Hello,

Because of some restrictions in terms of Policy issues i.e. access control (who?) and Digital Rights (licensing, liability), we can not provide this feature at this time within our WMSs. We are addressing these issues as we speak as part of the overall effort through internal means and within the Open Geospatial Consortium GeoDRM group.

We will keep you informed ….

All the best for now

— Mohamed

Mohamed Habbane, Ph.D.

Canada Centre for Remote Sensing/Centre Canadien de télédétection
Natural Resources Canada/Ressources Naturelles Canada

GeoDRM? I should have guessed there’d be such a thing. Soon we’ll be faced with the phenomenon of illegal layersharing:-)

GeoDRM stands a better chance than DRM for music or video, however — music and video have as an achilles heel that they are not interactive, so they can always be recorded at the experiential stage. Dynamically served maps and data appear far more difficult to “record” for playback. Perhaps in the future we will have pirate Earths, where de-DRM’ed data is available, but I imagine the cost of running such a place would be prohibitive.

Interestingly, the library metaphor is bandied about quite a bit in the context of serving spatial information for free. Rights are protected, but access is subsidized as it is perceived as a “community good”. This is where the Atlas of Canada appears headed.

Content migration

Previously, when enthusiasts and hobbyists had an urgent need to communicate locations on a map, they had to make do with ad hoc solutions. Because Google Earth just looks so good, and the data format is so powerful, these locations are now beginning to migrate into KML. Case in point: This blog post on velodrome locations in the US, and how the author moved his database into Google Earth.

European media on Google Earth

La Tribune de Genîve picks up a glowing AFP review about Google Earth.

In general, European papers seem to be giving Google Earth strong mainstream coverage. In the US, most reviews have been restricted to the tech pages. In Germany, France, Sweden and the Netherlands, Google Earth has been written up in the culture- or general news sections. (You’ll get no insinuations from me regarding comparative geographic awareness and interest from populations on either side of the Atlantic — unless you consider this aside an insinuation:-)

WMS => KML

[Update 2005-08-11: Please read this post for a clarification on how the PHP works.]

Via Spatially Adjusted comes news that if you have or have access to a WMS (Web Map Service) server — and if you are a GIS pro you probably do — then the WMS maps on it can now be made accessible as dynamically updated layers inside Google Earth.

Australian Chris Tweedle wrote the PHP and posted it, and even adds an IP filter to control access to the server. (To be clear, this code needs to be installed on the server before Google Earthlings can use the maps.)

What this means is that we may soon see vendors selling subscriptions to WMS data layers aimed specifically at the GIS consumer — people like us.

There also appear to be free WMS servers out there for public use, though I haven’t searched far. For example, here is one: The Atlas of Canada. All we need to do now is to convince them to install Chris’s PHP and provide a network link to Google Earth.

(Reference: Integrating WMS with Google Maps, WMS Cookbook, WMS 1.1.1 tutorial)

Notes on the political, social and scientific impact of networked digital maps and geospatial imagery, with a special focus on Google Earth.