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https://issues.apache.org/jira/browse/SOLR-13467?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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David Smiley resolved SOLR-13467.
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Resolution: Fixed
Fix Version/s: 8.2
> Spatial: Add S2 lib for more efficient Geo3D indexes
> ----------------------------------------------------
>
> Key: SOLR-13467
> URL: https://issues.apache.org/jira/browse/SOLR-13467
> Project: Solr
> Issue Type: Improvement
> Security Level: Public(Default Security Level. Issues are Public)
> Components: documentation, spatial
> Reporter: David Smiley
> Assignee: David Smiley
> Priority: Major
> Fix For: 8.2
>
> Attachments: SOLR-13467.patch
>
>
> Here I'm adding a dependency on [Google S2 Geometry|http://s2geometry.io]
> (121KB) so that we can use {{prefixTree="s2"}} on a spatial field type that
> is using Geo3D. Lucene spatial-extras already has this dependency, albeit it
> is optional. I enhanced tests to exercise it.
> Additionally, I document here a strictness Geo3D has in which the polygon
> points must be provided in a particular order or else the interpretation of
> the shape is inverted. This so-called "right hand rule" order is somewhat
> standard but some libs (like JTS) don't care.
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