问题
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
If this is the query to return everything within 5km :
&q=:&fq={!geofilt sfield=store}&pt=45.15,-93.85&d=5
-what then would be the syntax to search for everything between 5 and 10km ?
Basically I can generate distance facets, but I dont know how to generate the links for the distance facets:
for example, what would the links for the following facets look like?:
distance
0-1km (2)
1-5km (0)
5-20km (0)
20-50km (0)
50-100km (0)
100-250km (0)
回答1:
The wiki does describe it:
&q=*:*&sfield=store&pt=45.15,-93.85&facet.query={!frange l=0 u=5}geodist()&facet.query={!frange l=5.001 u=3000}geodist()
This will generate a facet from 0 to 5km and another from 5km to 3000km. Change the values in frange according to your needs.
If you meant filtering with a range of distances, moving the facet query to a filter query should work, e.g. fq={!frange l=5.001 u=3000}geodist()
来源：https://stackoverflow.com/questions/6035270/faceting-on-distance-in-solr-how-to-generate-links-that-search-withing-a-given