: It is fairly simple to generate facets for ranges or 'buckets' of
: distance in Solr:
: http://wiki.apache.org/solr/SpatialSearch#How_to_facet_by_distance.
: What isnt described is how to generate the links for these facets

any query you specify in a facet.query to generate a constraint count can 
be specified in an fq to actaully apply that constraint.

So if you use...
   facet.query={!frange l=5.001 u=3000}geodist()

...to get a count of "34" and the user wants to constrain to those docs, 
you would add...

   fq={!frange l=5.001 u=3000}geodist()

...to the query to do that.


-Hoss

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