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https://issues.apache.org/jira/browse/LUCENE-8712?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ignacio Vera reassigned LUCENE-8712:
------------------------------------
Resolution: Fixed
Assignee: Ignacio Vera
Fix Version/s: master (9.0)
8.x
> Polygon2D does not detect crossings in some cases
> -------------------------------------------------
>
> Key: LUCENE-8712
> URL: https://issues.apache.org/jira/browse/LUCENE-8712
> Project: Lucene - Core
> Issue Type: Bug
> Reporter: Ignacio Vera
> Assignee: Ignacio Vera
> Priority: Major
> Fix For: 8.x, master (9.0)
>
> Attachments: LUCENE-8712.patch, LUCENE-8712.patch, LUCENE-8712.patch
>
> Time Spent: 20m
> Remaining Estimate: 0h
>
> Polygon2D does not detect crossing if the triangle crosses through points of
> the polygon and none of the points are inside it. For example:
>
> {code:java}
> public void testLineCrossingPolygonPoints() {
> Polygon p = new Polygon(new double[] {0, -1, 0, 1, 0}, new double[] {-1, 0,
> 1, 0, -1});
> Polygon2D polygon2D = Polygon2D.create(p);
> PointValues.Relation rel =
> polygon2D.relateTriangle(GeoEncodingUtils.decodeLongitude(GeoEncodingUtils.encodeLongitude(-1.5)),
> GeoEncodingUtils.decodeLatitude(GeoEncodingUtils.encodeLatitude(0)),
> GeoEncodingUtils.decodeLongitude(GeoEncodingUtils.encodeLongitude(1.5)),
> GeoEncodingUtils.decodeLatitude(GeoEncodingUtils.encodeLatitude(0)),
>
> GeoEncodingUtils.decodeLongitude(GeoEncodingUtils.encodeLongitude(-1.5)),
> GeoEncodingUtils.decodeLatitude(GeoEncodingUtils.encodeLatitude(0)));
> assertEquals(PointValues.Relation.CELL_CROSSES_QUERY, rel);
> }{code}
> [~nknize] you might want to look at this as I am not sure what to do.
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