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From Grant Ingersoll <gsing...@apache.org>
Subject Re: If you could have one feature in Lucene...
Date Thu, 25 Feb 2010 18:02:35 GMT
Yeah, there's an open issue in Solr for this one.  It's non-trivial and I would love to have
it too.

On Feb 24, 2010, at 3:23 PM, Marcelo Ochoa wrote:

>> What would it be?
>  An extended query parser syntax
> (http://lucene.apache.org/java/2_9_1/queryparsersyntax.html) including
> geo-location search.
>  For example:
>    hsin (great circle):                              name:Minneapolis
> AND _val_:"recip(hsin(0.78, -1.6, lat_rad, lon_rad, 3963.205), 1, 1,
> 0)"^100
>    dist (Euclidean, Manhattan, p-norm):   name:Minneapolis AND
> _val_:"recip(dist(2, lat, lon, 44.794, -93.2696), 1, 1, 0)"^100
>    sqedist (Squared Euclidean):              name:Minneapolis AND
> _val_:"recip(sqedist(lat, lon, 44.794, -93.2696), 1, 1, 0)"^100
>    ghhdist (Geohash Haversine):             name:Minneapolis AND
> _val_:"recip (ghhsin(geohash(44.79, -93), geohash, 3963.205), 1, 1,
> 0)"^100
>  source:
>    http://www.ibm.com/developerworks/java/library/j-spatial/index.html
>  Best regards, Marcelo.
> -- 
> Marcelo F. Ochoa
> http://marceloochoa.blogspot.com/
> http://marcelo.ochoa.googlepages.com/home
> ______________
> Want to integrate Lucene and Oracle?
> http://marceloochoa.blogspot.com/2007/09/running-lucene-inside-your-oracle-jvm.html
> Is Oracle 11g REST ready?
> http://marceloochoa.blogspot.com/2008/02/is-oracle-11g-rest-ready.html
> 
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--------------------------
Grant Ingersoll
http://www.lucidimagination.com/

Search the Lucene ecosystem using Solr/Lucene: http://www.lucidimagination.com/search


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