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https://issues.apache.org/jira/browse/LUCENE-7154?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15219780#comment-15219780
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Robert Muir commented on LUCENE-7154:
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I'm not sure, I was just playing with these geoname shapes:
http://download.geonames.org/export/dump/shapes_simplified_low.zip
> Add support for polygon holes to Geo3D
> --------------------------------------
>
> Key: LUCENE-7154
> URL: https://issues.apache.org/jira/browse/LUCENE-7154
> Project: Lucene - Core
> Issue Type: New Feature
> Reporter: Karl Wright
>
> Real-world polygons (e.g. from ESRI) have holes in them. We need polygon
> support in geo3D that works in the same way.
> The proposal would be to change the GeoConvexPolygon constructor to include a
> number of GeoPolygon inputs, each of which would specify a hole. Then, the
> GeoPolygonFactory.makeGeoPolygon() method would also need to accept a similar
> list of GeoPolygon hole descriptions.
> This change is likely to be fairly complex because of the already tricky
> algorithm used to create convex polygons from non-convex ones, implemented in
> GeoPolygonFactory.
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