In writing my new HBase datastore for GT, I've been looking into the
various geo-indexing schemes available. From the docs it looks like only
Quadtree is available in the GT libraries, and only a thread-unsafe
shapefile-based index at that. From google, I have also seen hints of a
pluggable r-tree implementation (Google "org.geotools.index.rtree"), which
I suspect would fit my needs a lot better, but that seems to be missing in
the official javadocs. Does anyone know what the status of that R tree
implementation is, or whether there are any other pluggable-storage geodata
indexing libraries that are in common use?
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