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Posted to dev@lucene.apache.org by "Ignacio Vera (JIRA)" <ji...@apache.org> on 2018/03/18 19:06:00 UTC

[jira] [Created] (LUCENE-8214) Improve selection of testPoint for GeoComplexPolygon

Ignacio Vera created LUCENE-8214:
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             Summary: Improve selection of testPoint for GeoComplexPolygon
                 Key: LUCENE-8214
                 URL: https://issues.apache.org/jira/browse/LUCENE-8214
             Project: Lucene - Core
          Issue Type: Improvement
          Components: modules/spatial3d
            Reporter: Ignacio Vera


I have been checking the effect of the testPoint on GeoComplexPolygon and it seems performance can change quite a bit depending on the choice. 

The results with random polygons with 20k points shows that a good choice is to ue the center of mass of the shape. On the worst case the performance is similar to what we have now and the best case is twice as fast for {{within()}} and {{getRelationship()}} methods.

Therefore I would like to propose to use that point whenever possible.

 

 



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