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From Apache Wiki <wikidi...@apache.org>
Subject [Lucene-java Wiki] Update of "SpatialSearch" by UweSchindler
Date Wed, 07 Oct 2009 06:05:13 GMT
Dear Wiki user,

You have subscribed to a wiki page or wiki category on "Lucene-java Wiki" for change notification.

The "SpatialSearch" page has been changed by UweSchindler:
http://wiki.apache.org/lucene-java/SpatialSearch?action=diff&rev1=5&rev2=6

   * http://labs.metacarta.com/blog/27.entry/geographic-queries-on-google-app-engine/
   * http://mappinghacks.com/2008/05/29/geohash-implemented-in-python/
  
- == Simple numerical lat/long search using NumericRangeQuery (Lucene Core version 2.9-dev)
==
+ == Simple numerical lat/long search using NumericRangeQuery (Lucene Core version 2.9) ==
  
  Using Numeric''''''Field, WGS84 latitude and longitude can be efficiently encoded and queried
by Numeric''''''Range''''''Query. Use this, if you have a lot of point features that should
be queryable using (possibly large) bounding boxes. Numeric''''''Range''''''Query is very
efficient, when the user searches for bounding boxes of any size and wants to get all included
point features (it is even fast, when the user selects large bounding boxes, e.g. -180,-90,180,90
runs in constant time independent of the large range bounds). See: SearchNumericalFields.
  

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