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https://issues.apache.org/jira/browse/LUCENE-8126?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16383398#comment-16383398
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ASF subversion and git services commented on LUCENE-8126:
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Commit 1e86af061e41f1a7df1740f34ef58a1110626d96 in lucene-solr's branch
refs/heads/branch_7x from [~ivera]
[ https://git-wip-us.apache.org/repos/asf?p=lucene-solr.git;h=1e86af0 ]
LUCENE-8126: new spatial prefix tree (SPT) based on google S2 geometry
> Spatial prefix tree based on S2 geometry
> ----------------------------------------
>
> Key: LUCENE-8126
> URL: https://issues.apache.org/jira/browse/LUCENE-8126
> Project: Lucene - Core
> Issue Type: New Feature
> Components: modules/spatial-extras
> Reporter: Ignacio Vera
> Assignee: Ignacio Vera
> Priority: Major
> Attachments: SPT-cell.pdf, SPT-query.jpeg
>
> Time Spent: 40m
> Remaining Estimate: 0h
>
> Hi [~dsmiley],
> I have been working on a prefix tree based on goggle S2 geometry
> (https://s2geometry.io/) to be used mainly with Geo3d shapes with very
> promising results, in particular for complex shapes (e.g polygons). Using
> this pixelization scheme reduces the size of the index, improves the
> performance of the queries and reduces the loading time for non-point shapes.
> If you are ok with this contribution and before providing any code I would
> like to understand what is the correct/prefered approach:
> 1) Add new depency to the S2 library
> (https://mvnrepository.com/artifact/io.sgr/s2-geometry-library-java). It has
> Apache 2.0 license so it should be ok.
> 2) Create a utility class with all methods necessary to navigate the S2 tree
> and create shapes from S2 cells (basically port what we need from the library
> into Lucene).
> What do you think?
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