[georss] What's next--a query API

Raj Singh raj at rajsingh.org
Mon May 8 20:45:03 EDT 2006


What's the first thing you want to do after you have a GeoRSS feed?
Do a geographic query of course.

I'm sure we can think of all kinds of interesting and useful spatial
queries, like distance from something else or the overlap of two
geographies, but the thing people will probably want to do 95% of the time
is get only things in a specified bounding box.

How about we promote this as a recommended feature of GeoRSS-enabled
software? Here's the proposal:

1. A GeoRSS bounding box query consists of a feed URI plus a BBOX parameter,
consisting of minx,miny,maxx,maxy. This is the same as the WMS BBOX
parameter.

2. A service can optionally support multiple coordinate reference systems by
adding support for an SRS parameter, which would contain an EPSG code (once
again like WMS).

--
Raj





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