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

[Anselm Hook]

> 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.
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