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Posted to issues@lucene.apache.org by "Ignacio Vera (Jira)" <ji...@apache.org> on 2020/06/10 07:56:00 UTC
[jira] [Created] (LUCENE-9400) Tessallator might fail when several
holes share the same vertex
Ignacio Vera created LUCENE-9400:
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Summary: Tessallator might fail when several holes share the same vertex
Key: LUCENE-9400
URL: https://issues.apache.org/jira/browse/LUCENE-9400
Project: Lucene - Core
Issue Type: Bug
Reporter: Ignacio Vera
Attachments: image-2020-06-10-09-54-46-316.png
We found a new case where tessellation might fail on a valid polygon. The issue shows when a polygon has several holes sharing the same vertex. In this case the merging logic for holes might fail creating an invalid polygon. For example a polygon like this one:
!image-2020-06-10-09-54-46-316.png|width=260,height=266!
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