Ignacio Vera created LUCENE-8556:
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Summary: Tesselator: Polygons may fail when using Morton
optimisation
Key: LUCENE-8556
URL: https://issues.apache.org/jira/browse/LUCENE-8556
Project: Lucene - Core
Issue Type: Bug
Components: modules/sandbox
Affects Versions: 7.6, master (8.0)
Reporter: Ignacio Vera
Attachments: image-2018-11-02-08-48-12-898.png
I experience some errors when processing complex polygons. I realised that if I
disable the Morton optimisation, then the errors go away.
I studied one of the cases and it seems that when using the optimisation, it is
possible to create triangles with points inside of them (see picture attached).
There is a point just on the edge of the triangle. When disabling the
optimisation, such a triangle is not created.
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