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https://issues.apache.org/jira/browse/LUCENE-7226?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15244864#comment-15244864
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Karl Wright commented on LUCENE-7226:
-------------------------------------
Now it's having trouble finding a pole to determine order of points for a hole.
Usually that happens when edges intersect each other etc. I'll have to do
some significant forensics to figure out what exact manner of corruption this
is. :-(
> 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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