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From Apache Wiki <wikidi...@apache.org>
Subject [Lucene-java Wiki] Update of "SpatialSearch" by UweSchindler
Date Tue, 30 Dec 2008 13:49:23 GMT
Dear Wiki user,

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The following page has been changed by UweSchindler:
http://wiki.apache.org/lucene-java/SpatialSearch

The comment on the change is:
reduce "efficient" usage :-)

------------------------------------------------------------------------------
  
  == Simple numerical lat/long search using TrieRangeQuery (contrib/search, version 2.9-dev)
==
  
- Using Trie''''''Utils, WGS84 latitude and longitude can be efficiently encoded and queried
by Trie''''''Range''''''Query. This is very efficient, if you have a lot of point features
that should be queryable. Trie''''''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.
+ Using Trie''''''Utils, WGS84 latitude and longitude can be efficiently encoded and queried
by Trie''''''Utils and Trie''''''Range''''''Query. Use this, if you have a lot of point features
that should be queryable using (possibly large) bounding boxes. Trie''''''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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