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https://issues.apache.org/jira/browse/LUCENE-8140?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16346832#comment-16346832
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Alan Woodward commented on LUCENE-8140:
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The commit messages had the wrong issue number; for the record, the relevant
commits are:
master: ebb346d58204d014f85fe3576ce00a0d000491bb
7x: 505f7b9d56abed389f20d97a16bc5462603b95a3
6x: f419b96687b393989dc0bf25c327ca98498459e1
> Checks for coplanarity when creating polygons shows numerical issues
> --------------------------------------------------------------------
>
> Key: LUCENE-8140
> URL: https://issues.apache.org/jira/browse/LUCENE-8140
> Project: Lucene - Core
> Issue Type: Bug
> Components: modules/spatial3d
> Reporter: Ignacio Vera
> Assignee: Karl Wright
> Priority: Major
> Fix For: 6.7, master (8.0), 7.3
>
> Attachments: LUCENE-8140-test.patch, LUCENE-8140.patch
>
>
> Coplanarity checks in GeoPolygonFactory shows numerical errors when the
> distance between two points is very small compared to the distance of the
> other two points. The situation is as follows:
> Having three points A, B, & C and the distance between A & B is very small
> compared to the distance between A & C, then the plane AC contains all points
> (co-planar) but the plane defined by AB does not contain C because of
> numerical issues. This situation makes some polygons fail to build.
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