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Tricks to Speed up Neighbor Searches of Quadtrees. #geo #spatial #java

navigatone.com · published 29 May 2012

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http://graphhopper.com

graphhopper.com

http://en.wikipedia.org/wiki/Quadtree

en.wikipedia.org

http://en.wikipedia.org/wiki/Tree_data_structure

en.wikipedia.org

http://en.wikipedia.org/wiki/Haversine_formula

en.wikipedia.org

https://github.com/graphhopper/graphhopper/blob/master/src/main/java/com/graphhopper/util/shapes/Circle.java

github.com

http://osgeo-org.1560.n6.nabble.com/Boundingbox-issue-for-discussion-td3875533.html

osgeo-org.1560.n6.nabble.com

https://github.com/graphhopper/graphhopper/blob/master/src/main/java/com/graphhopper/util/shapes/BBox.java

github.com

http://www.cs.umd.edu/~hjs/pubs.html

cs.umd.edu

http://www.acm.org/conferences/sac/sac2000/Proceed/FinalPapers/DB-27/node3.html

acm.org

https://karussell.wordpress.com/2012/05/23/spatial-keys-memory-efficient-geohashes/

karussell.wordpress.com

http://www.cs.umd.edu/%7Ehjs/pubs/bulkload.pdf

cs.umd.edu

http://en.wikipedia.org/wiki/Radix_tree

en.wikipedia.org

https://github.com/graphhopper/graphhopper/blob/master/src/main/java/com/graphhopper/geohash/SpatialHashtable.java

github.com

https://issues.apache.org/jira/browse/SIS-45

issues.apache.org