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From Volker Mische <>
Subject Re: looking for best approach to handle geo data
Date Fri, 13 Nov 2009 16:31:35 GMT
Jim Woodgate wrote:
> On Fri, Nov 13, 2009 at 10:07 AM, Volker Mische <> wrote:
>> Hi Jim,
>> are the two objects you want to check the intersection of within one
>> document, or is every geometry in its own document?
> Each document has it's own geometry (which might be a single point or
> a closed polygon) and the search would be a geometry (more than likely
> a polygon) and I would only return documents where the geometries
> intersected.  I was also hoping to use a bounding box to order the
> documents.

I don't see a way without using an _external handler for it. Actually
what you describe is a use-case why I created GeoCouch. I'd love to have
a way doing such things directly in CocuhDB, but it's a loooong way to
go to make it happen. Therefore I use an spatial database for these kind
of operations (SpatiaLite is basically only a R-Tree connected with GEOS
for stuff like intersections and PROJ4 for reprojection).

If you find another solution, or want to help getting this functionality
into CouchDB, please let me know.


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