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https://issues.apache.org/jira/browse/LUCENE-8239?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16427038#comment-16427038
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Karl Wright commented on LUCENE-8239:
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Ok, that choice isn't causing the issue.
The selection logic winds up picking a path based on deltas that are all not
infitesimal. So we have the following situation: the intersection point is
somehow at least 1e-8 from the test or check point, and yet the intersection of
the above planes or below planes does not intersect the planet.
So, as you originally proposed, you can check explicitly for the case where the
test point or check point is right on the pole. I don't think, however, that
that's a safe check for this condition. What you want is a check for whether
the above plane or below plane intersects the world at all. Luckily, once the
normalized above/below planes are constructed, the check is easy: just look at
the D value and compare against the appropriate min/max x/y/z. If the plane
fails the test, then you can't expect to travel in it.
Unfortunately, as a performance optimization, we don't construct the
above/below travel planes right now at the time we need them to make this kind
of decision -- we wait until we have a crossing to analyze first. I'll
therefore need to restructure things to make that possible. But that cannot
happen today -- it will have to wait.
> 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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