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https://issues.apache.org/jira/browse/LUCENE-6951?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15076130#comment-15076130
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ASF subversion and git services commented on LUCENE-6951:
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Commit 1722467 from [~nknize] in branch 'dev/branches/branch_5x'
[ https://svn.apache.org/r1722467 ]
LUCENE-6951: Improve GeoPointInPolygonQuery using point orientation based line
crossing algorithm, and adding result for multi-value docs when least 1 point
satisfies polygon criteria.
> GeoPointInPolygonQuery can be improved
> --------------------------------------
>
> Key: LUCENE-6951
> URL: https://issues.apache.org/jira/browse/LUCENE-6951
> Project: Lucene - Core
> Issue Type: Improvement
> Reporter: Nicholas Knize
> Attachments: LUCENE-6951.patch
>
>
> {{GeoRelationutils}} uses a basic algebraic approach for computing if (and
> where) a rectangle crosses a polygon by checking the line segments of both
> the polygon and rectangle. The current suboptimal line crossing approach can
> be greatly improved by exploiting the orientation of the lines and endpoints.
> If the endpoints of one line are on different "sides" of the line segment
> then the two may cross.
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