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https://issues.apache.org/jira/browse/LUCENE-7186?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15247838#comment-15247838
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Robert Muir commented on LUCENE-7186:
-------------------------------------

Yes +1 to nuke {{testEncodeDecodeRoundsDown}}. I wrote this test and it 
initially found some bugs but it turned out to be too wimpy for a number of 
reasons. It could no longer find the bugs we were encountering. It provides us 
no benefits, instead only the downside of being tested with epsilons.


> Add numerically stable morton encoding to GeoEncodingUtils
> ----------------------------------------------------------
>
>                 Key: LUCENE-7186
>                 URL: https://issues.apache.org/jira/browse/LUCENE-7186
>             Project: Lucene - Core
>          Issue Type: Improvement
>            Reporter: Nicholas Knize
>         Attachments: LUCENE-7186.patch, LUCENE-7186.patch, LUCENE-7186.patch, 
> LUCENE-7186.patch, LUCENE-7186.patch, LUCENE-7186.patch
>
>
> This is the follow on to LUCENE-7184.  It adds a numerically stable morton 
> encoding method to {{o.a.l.geo.GeoEncodingUtils}} that can be reused by 
> {{GeoPointField}} and a new {{GeoPointField}} based on {{Point}} encoding.



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