[Community] Rtree 0.5.0 released

[Sean Gillies]

Fantastic, Howard. Thanks for putting in all this work and putting up  
with my fussing ;)

On Aug 6, 2009, at 5:41 AM, Howard Butler wrote:

> All,
>
> I am pleased to announce the release of Rtree 0.5.0.  Rtree 0.5.0 is
> the first release of a complete refactoring of the library, and it
> requires libspatialindex 1.4.0 or greater for operation.  The new code
> represents a significant leap forward in capabilities, flexibility,
> and performance.  Although my opinion is that I have tested it as well
> as the 0.4 code was tested (including full valgrinding to clean up
> leaks in both Rtree and libspatialindex), you should give things a
> good test before putting it in production.  The new code should have
> API parity with the old in addition to the new features and  
> performance.
>
> The highlights include:
>
> - ability to bulk load an index from a generator at instantiation time
> - multidimensional indexes (2, 3, 4, ..., kD).
> - ability to store pickles when inserting index items and retrieve
> them in queries
> - custom index/dat filenames!
> - tunable index performance with index properties (see libspatialindex
> documentation)
> - quick index bounds query
> - fetchable index item bounds (when using objects=True in your  
> nearest/
> intersection calls)
> - point storage where applicable (minx==max && miny == maxy && ... &&
> mink == maxk)
>
> <http://pypi.python.org/pypi/Rtree/>
>
> This code represents where I wanted to see the library go when I
> started working on it with Sean.  The index properties stuff will
> allow a tweaker to play with the indexing parameters to their heart's
> content, and the snazzy stuff like the bulk loading generator stuff
> will allow a Python user to take advantage of advanced capabilities of
> the library with ease.  There's still plenty of work left to do, but
> this is a good hop down the road.
>
> Howard
>
> PS, of course I find an issue with libspatialindex on msvc 2003 when
> doing the final packaging.  No windows builds for 2.4/2.5 right now,
> but I hope to have them up soon.  2.6 is available, however.
> _______________________________________________
> Community mailing list
> Community at lists.gispython.org
> http://lists.gispython.org/mailman/listinfo/community