[jira] [Updated] (LUCENE-7380) Add Polygon.fromGeoJSON

["Michael McCandless (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/LUCENE-7380?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Michael McCandless updated LUCENE-7380:
---------------------------------------
    Attachment: LUCENE-7380.patch

Patch; I think it's close.

It adds just one public API: {{Polygon.fromGeoJSON(String)}} returning {{Polygon[]}} because the {{MultiPolygon}} case allows more than one {{Polygon}}.

Also, I confirmed it correctly parses the large polygons from
https://github.com/hugoledoux/BIGpolygons


> Add Polygon.fromGeoJSON
> -----------------------
>
>                 Key: LUCENE-7380
>                 URL: https://issues.apache.org/jira/browse/LUCENE-7380
>             Project: Lucene - Core
>          Issue Type: Improvement
>            Reporter: Michael McCandless
>            Assignee: Michael McCandless
>             Fix For: master (7.0), 6.2
>
>         Attachments: LUCENE-7380.patch
>
>
> Working with {{Polygon}} is a bit tricky today because you typically
> must use an external dependency to convert e.g. a GeoJSON string into
> Lucene's Polygon class ... I think this is a weakness in our API, and
> it clearly confuses users: http://markmail.org/thread/mpge4wqo7cfqm4i5
> So I created a simplistic GeoJSON parser to extract a single Polygon
> or MultiPolygon from a GeoJSON string, without any dependencies.  The
> parser only handles the various ways that a single Polygon or
> MultiPolygon can appear in a GeoJSON string, and throws an exception
> otherwise.



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