[Geojson] [Geowanking] [georss] simple 3D geocode for AR

Mike Liebhold mnl at well.com
Mon Aug 31 21:47:08 PDT 2009


Sorry Chris, my previous posts tonight  were in response to Ron Lake's 
and others posts about relative coordinate systems.

I re-read your comments and see your suggestion of a local coordinate 
system is  kinda what I was seeking. ( thoughts about URI semantics are 
a digression)


Anselm Hook wrote:
> > Chris Goad writes :
> > 3d modeling formalisms support this (and full GML does too), but 
>  GeoRSS, GeoJSON, and KML do not. This is probably an argument for 
> going to represententations  built for 3d in the first place for AR 
> applications where local coordinates play a necessary role, but 
> concievably there is a niche for our lightweight geo standards 
> extended  by addition of a transformation node.
>
> I concur. It's convenient to have an idea of a local coordinate 
> system. I've always been slightly surprised by how the GML community 
> ignored the work of the VRML community. Convenience concepts such as 
> transform nodes, multiple instancing of geometry and behavior nodes 
> make expressing ideas more succinct.




More information about the GeoJSON mailing list