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https://issues.apache.org/jira/browse/LUCENE-6759?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14725265#comment-14725265
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Karl Wright commented on LUCENE-6759:
-------------------------------------
The path is a four-point one. The part of the path that contains the point is
the first segment. This segment has four bounding planes and four corner
points. The point in question has the following coordinates:
{code}
[junit4] 2> Point.x = 1.0005691667476262; point.y=0.023149205146987442;
point.z=0.023676292209381222
{code}
My augmented output for getting the bounds for the segment shows that it is the
upper connecting plane that determines the maxX boundary for the shape:
{code}
[junit4] 2> upperConnectingPlane...
[junit4] 2> computing Z bound
[junit4] 2> not degenerate
[junit4] 2> computing X bound
[junit4] 2> not degenerate; B=-0.5302912804708979;
C=-0.5331856607581867
[junit4] 2> Point = [X=1.0005682443631527, Y=0.022204817350270467,
Z=0.02459563634844797]; this.evaluate(point)=0.0;
normalizedXPlane.evaluate(point)=4.163336342344337E-17
[junit4] 2> computing Y bound
[junit4] 2> not degenerate
{code}
The point of maximum excursion's X value, though, is X=1.0005682443631527. The
actual X value of the point we're checking is Point.x = 1.0005691667476262. So
that's the disagreement. The next step is to see how that difference arises.
Specifically, the point found is on the upperConnectingPlane (eval = 0.0), and
on the plane I have constructed that should represent a perpendicular to the
upperConnectingPlane going through the point of maximum excursion. I'll have
to verify that that is indeed the case.
> 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, LUCENE-6699.patch, LUCENE-6699.patch
>
>
> This is just a continuation of LUCENE-6699, which became too big.
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