GeoDMA is a plugin for TerraView software, used for geographical data mining. With a single image, the user can perform segmentation, attributes extraction, normalization and classification.
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.
geoLucene is an extension of Lucene that allows to effectively index and search documents that contain locational information (longitude/latitude). It uses R-tree as a spacial index. See http://www.gossamer-threads.com/lists/lucene/java-dev/53378.