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https://issues.apache.org/jira/browse/LUCENE-9251?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ignacio Vera resolved LUCENE-9251.
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Fix Version/s: 8.5
Assignee: Ignacio Vera
Resolution: Fixed
> Polygon tessellator fails to detect some collinear points
> ---------------------------------------------------------
>
> Key: LUCENE-9251
> URL: https://issues.apache.org/jira/browse/LUCENE-9251
> Project: Lucene - Core
> Issue Type: Bug
> Reporter: Ignacio Vera
> Assignee: Ignacio Vera
> Priority: Major
> Fix For: 8.5
>
> Time Spent: 1h 10m
> Remaining Estimate: 0h
>
> A user of Elasticsearch [has reported|
> https://discuss.elastic.co/t/unable-to-tessellate-shape-error-on-indexing-es-7-6/220867]
> a tessellation error in a valid polygon. The reported polygon is quite
> complex but after digging a bit, the problem is the tesselator fails to
> detect some colinearities. In particular, in complex tessellation we can end
> up with two equal edges with different flag in {{isEdgeFromPolygon}}. Still
> we should be able to remove that co-linearity.
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