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https://issues.apache.org/jira/browse/LUCENE-6908?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Nicholas Knize updated LUCENE-6908:
-----------------------------------
Attachment: LUCENE-6908.patch
Patch includes:
* update {{testGeoRelations}} to rewrite longitudinal span queries into 4
slices to reduce radial distortion error in {{GeoUtils}} cartesian
approximation methods - this would be needed for BKD queries due to the nature
of the split algorithm for large distance queries.
* Incorporate distance error on {{isClosestPointOnRectWIthinRange}} for better
approximation within BKD.
* added comments and javadocs.
> TestGeoUtils.testGeoRelations is buggy with irregular rectangles
> ----------------------------------------------------------------
>
> Key: LUCENE-6908
> URL: https://issues.apache.org/jira/browse/LUCENE-6908
> Project: Lucene - Core
> Issue Type: Bug
> Reporter: Nicholas Knize
> Attachments: LUCENE-6908.patch
>
>
> The {{.testGeoRelations}} method doesn't exactly test the behavior of
> GeoPoint*Query as its using the BKD split technique (instead of quad cell
> division) to divide the space on each pass. For "large" distance queries this
> can create a lot of irregular rectangles producing large radial distortion
> error when using the cartesian approximation methods provided by
> {{GeoUtils}}. This issue will better divide the space enabling use of the
> fast cartesian approximation methods instead of having to convert to an
> expensive oblate geometry approach.
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