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.
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.