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https://issues.apache.org/jira/browse/LUCENE-6196?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14323696#comment-14323696
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Shalin Shekhar Mangar commented on LUCENE-6196:
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bq. Based on the license included with the contribution, anyone can take the
code anywhere they want, provided the license remains intact.
Okay, I missed that part. But still, quoting you:
bq. However, as I have indicated earlier in this thread, unless this code winds
up in Lucene or Solr, for the moment I can't contribute to it any further. This
may change in the future, but that is the situation at the moment.
You (the original author) can neither contribute it directly to another project
nor are you able to contribute to it further unless it lands in Lucene or Solr,
at least for now. That, for me, is reason enough to have this code in
Lucene/Solr land.
> Include geo3d package, along with Lucene integration to make it useful
> ----------------------------------------------------------------------
>
> Key: LUCENE-6196
> URL: https://issues.apache.org/jira/browse/LUCENE-6196
> Project: Lucene - Core
> Issue Type: New Feature
> Components: modules/spatial
> Reporter: Karl Wright
> Assignee: David Smiley
> Attachments: ShapeImpl.java, geo3d-tests.zip, geo3d.zip
>
>
> 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.
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