+1, this sounds like a nice addition to Lucene's spatial module. Even if it overlaps with what we have today, we can merge the two approaches with time.
Mike McCandless http://blog.mikemccandless.com On Thu, Jan 22, 2015 at 3:08 PM, Karl Wright <daddy...@gmail.com> wrote: > I would like to explore contributing a geo3d package to Lucene. This can be > used in conjunction with Lucene search, both for generating geohashes (via > spatial4j) for complex geographic shapes, as well as limiting results > resulting from those queries to those results within the exact shape in > highly performant ways. > > The package uses 3d planar geometry to do its magic, which basically limits > computation necessary to determine membership (once a shape has been > initialized, of course) to only multiplications and additions, which makes > it feasible to construct a performant BoostSource-based filter for > geographic shapes. The math is somewhat more involved when generating > geohashes, but is still more than fast enough to do a good job. > > For reasons that are not really technical, the only open-source project that > I can contribute this to initially is Lucene. If people believe it would be > a valuable addition, and would like me to create a ticket and attach a > patch, please respond. > > Thanks, > Karl Wright > --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@lucene.apache.org For additional commands, e-mail: dev-h...@lucene.apache.org
