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https://issues.apache.org/jira/browse/LUCENE-6196?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14323686#comment-14323686
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Shalin Shekhar Mangar commented on LUCENE-6196:
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bq. I plan to incorporate it into Spatial4j, and the first step is an Eclipse
"CQ" (Contribution Questionnaire) which is part of the IP process for code >
1000 lines. I've done that and it needs one more PMC vote there (I think).
This is a contribution to Lucene/Solr and it has been made quite clear by the
contributor that he can only contribute this to Lucene/Solr. Why are you trying
to contribute it to some other project and by whose permission (certainly not
the original contributor's)? This is a genuine question, not a complaint.
Please help me understand.
> 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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