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Posted to dev@sedona.apache.org by "Dimitris Bilidas (Jira)" <ji...@apache.org> on 2022/04/22 13:21:00 UTC

[jira] [Created] (SEDONA-118) ST_Within uses wrong JTS Function

Dimitris Bilidas created SEDONA-118:
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             Summary: ST_Within uses wrong JTS Function
                 Key: SEDONA-118
                 URL: https://issues.apache.org/jira/browse/SEDONA-118
             Project: Apache Sedona
          Issue Type: Bug
    Affects Versions: 1.2.1
            Reporter: Dimitris Bilidas
             Fix For: 1.2.1


The eval method of ST_Within (in file Predicates.scala) calls the function coveredBy of JTS. Instead, it should call the within function. 

As a result, now, the expression 
{code:java}
ST_Within(ST_GeomFromWKT('POINT(0 0)'),ST_GeomFromWKT('POLYGON ((0.0 0.0, 10.0 0.0, 10.0 10.0, 0.0 10.0, 0.0 0.0))')) {code}
returns true, whereas the correct behaviour according to the simple features specification for sql should be false.

Also, the toString method of the ST_Within is wrong.



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