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https://issues.apache.org/jira/browse/LUCENE-8126?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16386195#comment-16386195
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David Smiley commented on LUCENE-8126:
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[~ivera] can you also please add a 2-line change to SpatialPrefixTreeFactory so
that "s2" resolves to this new SPT Factory?
Perhaps in the future this class could be refactored to use the Java Service
Provider framework like Lucene already uses it for codecs and various parts.
> 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: 50m
> 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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