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comsysto / jumbodb

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Implement Geospatial index strategy #74

Closed devproof closed 11 years ago

devproof commented 11 years ago

Implement Geospatial index strategy

devproof commented 11 years ago

use geo hashes http://code.google.com/p/geospatialweb/source/browse/trunk/geohash/src/Geohash.java?r=104

devproof commented 11 years ago

http://www.bigfastblog.com/geohash-intro

devproof commented 11 years ago

5 bit getting converted to a character ... save it binary in an byte array, saves space

devproof commented 11 years ago

http://code.google.com/p/simplelatlng/source/browse/#hg%2Fsrc%2Fmain%2Fjava%2Fcom%2Fjavadocmd%2Fsimplelatlng

devproof commented 11 years ago

https://github.com/kungfoo/geohash-java/blob/master/src/main/java/ch/hsr/geohash/GeoHash.java da gibts schon mask auf long

devproof commented 11 years ago

works, support BoundaryBox queries and Range/RAdius Queries in Meter