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https://issues.apache.org/jira/browse/LUCENE-7226?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Karl Wright resolved LUCENE-7226.
---------------------------------
       Resolution: Fixed
    Fix Version/s: 6.x
                   master

> Geo3d polygon data cleaning would be helpful
> --------------------------------------------
>
>                 Key: LUCENE-7226
>                 URL: https://issues.apache.org/jira/browse/LUCENE-7226
>             Project: Lucene - Core
>          Issue Type: Improvement
>          Components: modules/spatial3d
>    Affects Versions: master
>            Reporter: Karl Wright
>            Assignee: Karl Wright
>             Fix For: master, 6.x
>
>         Attachments: LUCENE-7226.patch
>
>
> Some of the OpenStreetMap data has duplicate points, and edges that backtrack 
> upon themselves.  For most means of constructing polygons, it would be good 
> to "correct" the data and prune problematic points.



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