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https://issues.apache.org/jira/browse/LUCENE-7069?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15241483#comment-15241483
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ASF subversion and git services commented on LUCENE-7069:
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Commit 5238de937a84c4de387f0036830811cb3b7d734f in lucene-solr's branch
refs/heads/jira/SOLR-8908 from Mike McCandless
[ https://git-wip-us.apache.org/repos/asf?p=lucene-solr.git;h=5238de9 ]
LUCENE-7069: woops, approxBestDistance was way too approximate when the point
was inside the cell
> Add LatLonPoint.nearest to find closest indexed point to a given query point
> ----------------------------------------------------------------------------
>
> Key: LUCENE-7069
> URL: https://issues.apache.org/jira/browse/LUCENE-7069
> Project: Lucene - Core
> Issue Type: Improvement
> Reporter: Michael McCandless
> Assignee: Michael McCandless
> Fix For: master, 6.1
>
> Attachments: LUCENE-7069.patch, LUCENE-7069.patch, LUCENE-7069.patch,
> LUCENE-7069.patch
>
>
> KD trees (used by Lucene's new dimensional points) excel at finding "nearest
> neighbors" to a given query point ... I think we should add this to Lucene's
> sandbox as:
> {noformat}
> public static Document nearest(IndexReader r, String field, double lat,
> double lon) throws IOException
> {noformat}
> I only implemented the 1 nearest neighbor for starters ... I think we can
> easily generalize this in the future to K nearest.
> It could also be generalized to more than 2 dimensions, but for now I'm
> making the class package private in sandbox for just the geo2d (lat/lon) use
> case.
> I don't think this should go into 6.0.0, but should go into 6.1: it's a new
> feature, and we need to wrap up and ship 6.0.0 already ;)
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