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https://issues.apache.org/jira/browse/LUCENE-6759?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14723853#comment-14723853
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Karl Wright edited comment on LUCENE-6759 at 8/31/15 6:55 PM:
--------------------------------------------------------------

So what I think may be happening is that when the bounds of the shape are 
greater than the "size of the world", even just by a little bit, the recursion 
does not continue (in that dimension, at least).  Basically I think the code 
simply doesn't expect a starting cell that large.  There's no way, remember, to 
even represent such a condition with integers, so the decision is a perfectly 
reasonable one, but it's wrong.

I can try to demonstrate this with appropriate output.  But I've already 
demonstrated that geo3d is doing the right thing; it has the proper 
relationships between all objects and between the point and the shape and the 
area.  So it *has* to be decision-making in the bkd descent that is problematic.

As for whether making FUDGE_FACTOR impact the docvalues encoding -- I agree 
this is not ideal.  I presented the patch solely because it worked.




was (Author: [email protected]):
So what I think may be happening is that when the bounds of the shape are 
greater than the "size of the world", even just by a little bit, the recursion 
does not continue (in that dimension, at least).  Basically I think the code 
simply doesn't expect a starting cell that large.  There's no way, remember, to 
even represent such a condition with integers, so the decision is a perfectly 
reasonable one, but it's wrong.

I can try to demonstrate this with appropriate output.  But I've already 
demonstrated that geo3d is doing the right thing; it has the proper 
relationships between all objects and between the point and the shape and the 
area.  So it *has* to be decision-making in the bkd descent that is problematic.



> Integrate lat/long BKD and spatial 3d, part 2
> ---------------------------------------------
>
>                 Key: LUCENE-6759
>                 URL: https://issues.apache.org/jira/browse/LUCENE-6759
>             Project: Lucene - Core
>          Issue Type: New Feature
>            Reporter: Michael McCandless
>         Attachments: LUCENE-6699.patch, LUCENE-6699.patch, LUCENE-6699.patch, 
> LUCENE-6699.patch, LUCENE-6699.patch, LUCENE-6699.patch, LUCENE-6699.patch, 
> LUCENE-6699.patch, LUCENE-6699.patch, LUCENE-6699.patch, LUCENE-6699.patch, 
> LUCENE-6699.patch, LUCENE-6699.patch
>
>
> This is just a continuation of LUCENE-6699, which became too big.



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