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Posted to dev@lucene.apache.org by "Karl Wright (JIRA)" <ji...@apache.org> on 2018/04/05 11:54:00 UTC
[jira] [Comment Edited] (LUCENE-8239) GeoComplexPolygon fails when
test or/and check point are near a pole
[ https://issues.apache.org/jira/browse/LUCENE-8239?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16426789#comment-16426789 ]
Karl Wright edited comment on LUCENE-8239 at 4/5/18 11:53 AM:
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[~ivera] The "boundary plane is off the world" case is a legit case we need to code for. I'm not sure how we wind up using the Dual iterator for that case though, since by definition the test point or check point is *on* the pole, and therefore the travel in that dimension is distance zero. We should have selected one of the Linear iterators instead already before we get that far.
I would like to first try and understand why we don't already handle these cases before applying the proposed fix. If you have details of why the expected things are not happening and how the patch addresses it, I'm happy to go ahead without a careful review. I've got a tight deadline today but tomorrow should be a little bit easier.
was (Author: kwright@metacarta.com):
[~ivera] The "boundary plane is off the world" case is a legit case we need to code for. I'm not sure how we wind up using the Dual iterator for that case though, since by definition the test point or check point is *on* the pole, and therefore the travel in that dimension is distance zero. We should have selected one of the Linear iterators instead already before we get that far.
> GeoComplexPolygon fails when test or/and check point are near a pole
> --------------------------------------------------------------------
>
> Key: LUCENE-8239
> URL: https://issues.apache.org/jira/browse/LUCENE-8239
> Project: Lucene - Core
> Issue Type: Bug
> Components: modules/spatial3d
> Reporter: Ignacio Vera
> Priority: Major
> Attachments: LUCENE-8239.patch
>
>
> When calling {{within}} method in GeoComplexPolygon you can get errors if the test point of the polygon or the given point is near a pole.
> The reason is that one of the planes defined by these points is tangent to the world therefore intersection with the above plane fails. We should prevent navigating those planes ( we should not even construct them).
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