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Posted to dev@lucene.apache.org by "Michael McCandless (JIRA)" <ji...@apache.org> on 2016/03/22 01:22:25 UTC

[jira] [Commented] (LUCENE-7125) remove BKD_TOLERANCE from LatLonPoint polygon tests

    [ https://issues.apache.org/jira/browse/LUCENE-7125?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15205437#comment-15205437 ] 

Michael McCandless commented on LUCENE-7125:
--------------------------------------------

+1, wonderful!

> remove BKD_TOLERANCE from LatLonPoint polygon tests
> ---------------------------------------------------
>
>                 Key: LUCENE-7125
>                 URL: https://issues.apache.org/jira/browse/LUCENE-7125
>             Project: Lucene - Core
>          Issue Type: Bug
>            Reporter: Robert Muir
>         Attachments: LUCENE-7125.patch
>
>
> Currently this rejects any rectangles within a delta as being "too close to an edge", and returns null, which means those are not tested in the random test.
> But we already compensate for quantization in the test, we should just remove this additional delta. 
> The only problem I found in beasting is that, due to the algorithm being used for polygons, it obeys the "definition of insideness" described here: https://docs.oracle.com/javase/7/docs/api/java/awt/Shape.html
> In my opinion, this test should work just like the distance test, and just ensure the query is consistent with {{GeoRelationUtils.pointInPolygon()}}. Anything the query is doing other than running that in brute-force is purely an optimization. This also makes it easier to test more interesting polygons in the future other than just rectangles.
> Separately, we can test that this basic method works correctly better if we want, but that can just be a unit test.



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