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https://issues.apache.org/jira/browse/LUCENE-8721?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16791382#comment-16791382
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Ignacio Vera commented on LUCENE-8721:
--------------------------------------
I tried the patch and I get a failure in another test: testLUCENE8669
It is true that in the current implementation a line on the dateline will never
intersects any other shape but I see that more like a feature. Not sure if
about this approach, more over when we have LUCENE-8634 where an indexed line
query by itself might return an empty result.
> LatLonShapePolygon and LineQuery fail on shared dateline queries
> ----------------------------------------------------------------
>
> Key: LUCENE-8721
> URL: https://issues.apache.org/jira/browse/LUCENE-8721
> Project: Lucene - Core
> Issue Type: Bug
> Reporter: Nicholas Knize
> Priority: Major
> Attachments: LUCENE-8721.patch, LUCENE-8721.patch
>
>
> Indexed shapes should be returned with search geometries that share the
> dateline on the opposite hemisphere.
> For example:
> {code:java}
> public void testSharedDateline() throws Exception {
> //// index /////
> Directory dir = newDirectory();
> RandomIndexWriter w = new RandomIndexWriter(random(), dir);
> Document doc = new Document();
> // index western hemisphere geometry
> Polygon indexPoly = new Polygon(
> new double[] {-7.5d, 15d, 15d, 0d, -7.5d},
> new double[] {-180d, -180d, -176d, -176d, -180d}
> );
> Field[] fields = LatLonShape.createIndexableFields("test", indexPoly);
> for (Field f : fields) {
> doc.add(f);
> }
> w.addDocument(doc);
> w.forceMerge(1);
> ///// search //////
> IndexReader reader = w.getReader();
> w.close();
> IndexSearcher searcher = newSearcher(reader);
> // search w/ eastern hemisphere geometry that shares the dateline
> Polygon searchPoly = new Polygon(new double[] {-7.5d, 15d, 15d, 0d,
> -7.5d},
> new double[] {180d, 180d, 170d, 170d, 180d});
> Query q = LatLonShape.newPolygonQuery("test", QueryRelation.INTERSECTS,
> searchPoly);
> assertEquals(1, searcher.count(q));
> IOUtils.close(w, reader, dir);
> }
> {code}
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