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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.
JJFMapper is a cartography program for PHP. Serves maps realtime and/or saves them to disk. Can read ESRI Shapefiles and GPX files. It streams, saves, or returns an image via the GD library. It is controlled by an easy to learn XML config document.