[jira] [Commented] (LUCENE-8257) GeoComplexPolygon fails when points are near identical

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[jira] [Commented] (LUCENE-8257) GeoComplexPolygon fails when points are near identical

JIRA jira@apache.org

    [ https://issues.apache.org/jira/browse/LUCENE-8257?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16440442#comment-16440442 ]

Karl Wright commented on LUCENE-8257:
-------------------------------------

For standard polygons, we wound up accepting the fact that points on the opposite sides of the world would be within the shape, and even modified the bounds computation to allow it.  The question is whether that is what you are seeing here?


> GeoComplexPolygon fails when points are near identical
> ------------------------------------------------------
>
>                 Key: LUCENE-8257
>                 URL: https://issues.apache.org/jira/browse/LUCENE-8257
>             Project: Lucene - Core
>          Issue Type: Bug
>          Components: modules/spatial3d
>            Reporter: Ignacio Vera
>            Priority: Major
>         Attachments: LUCENE-8257.patch
>
>
> When a polygon have two consecutive points very close to each other but not numerically identical, we can get wrong results because planes defining that edge intersects somewhere else on the world. At that point the following check is evaluated to true:
> {code:java}
> if (edge.plane.evaluateIsZero(thePointX, thePointY, thePointZ) && edge.startPlane.isWithin(thePointX, thePointY, thePointZ) && edge.endPlane.isWithin(thePointX, thePointY, thePointZ)) {
>   return false;
> }{code}
>  



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