100% Upwards compatible variant of SQLite. Provides win32/win64 versions of sqlite3.dll, which work better (smaller/faster/longer paths) than the dll's provided by sqlite.org.
The Java RTree project aims to maintain an Java version of the RTree spatial indexing algorithm. See http://jsi.sourceforge.net for more information, and http://github.com/aled/jsi for latest development code.
The R-tree Library aims to implement a generic, portable, easy-to-use collection of R-tree variants. Tested to work under Linux and Windows, using GNU, Intel and VC++ compilers, and also implementing many variants already, we are well underway.
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A disk based production quality RTree based upon Guttmans quadratic split algorithm having following features:
Buffering with dirty write,
Index joins,
Tree Seeding,
Window and NN queries,
Runtime STR Packing capability,
Completely Thread safe.
An extensible spatial index library in C++ that supports robust spatial indexing methods and many advanced features. Currently supports R-tree (Rtree, R*-tree) variants, Multi Version R-trees (MVR-tree) and TPR-trees. For more information please visit the project homepage.