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https://issues.apache.org/jira/browse/LUCENE-7936?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16137582#comment-16137582
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Karl Wright commented on LUCENE-7936:
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[~dsmiley], I don't think we'd thought much about the representation; more 
interested right now in how we do it than the exact details.  We'd clearly want 
a minimal representation for a GeoPoint and I think that would be a lat and a 
lon and we'd take the hit on deserialization.

[~ivera], I think David's suggestion is a good one: maybe create a new ticket 
to handle the spatial-extras contributions?  The codec should become much 
simpler and I'd hope that David's interfaces could be extended to allow 
spatial4j objects to be similarly encoded/decoded.  Once again, I'll be looking 
at the geo3d serialization design later in the week when I actually have time 
-- or, [~ivera], if you have time before then you could propose an 
implementation.  But this is separate entirely from the TileIterator stuff.  We 
should do one thing at a time I think.


> Extend Geoshape interfaces so objects can be copied/serialized
> --------------------------------------------------------------
>
>                 Key: LUCENE-7936
>                 URL: https://issues.apache.org/jira/browse/LUCENE-7936
>             Project: Lucene - Core
>          Issue Type: Improvement
>          Components: modules/spatial3d
>            Reporter: Ignacio Vera
>            Assignee: Karl Wright
>         Attachments: GeoBinaryCodec.patch, LUCENE-7936.patch, Spatial4j.patch
>
>
> Hi [~david.wri...@bksv.com],
> I would like to propose to extends the GeoShape interfaces to be able to 
> copy/serialized the objects. The current status and  propose change is as 
> following:
> GeoPoint: It can be serialized by using x, y, z
> GeoCircle:  It can be serialized by using getCenter() and getRadius() and 
> getPlanetModel()
> GeoCompositeShape: It can be serialized by accesing shapes using size() and 
> GetShape(int index)
> GeoPath: add methods to the interface getPoints() and getCutoffAngle()
> GeoPolygon: This is the most complicated one as we have different types:
>    1.- GeoCompositePolygon is just a composite
>    2.- GeoConcavePolygon and GeoConvexPolygon: Create a new interface for 
> those polygons which exposes the points, holes, internaledges and 
> concavity/convexity
>    3.- GeoComplexPolygons: Do nothing, they are too complex to be serialize??
> I am intersested in accesing the discreatization of the polygons into convex 
> and concave ones for other reasons as well. I think this should be expose as 
> they end result can be used for other use cases.
> Cheers,
> I.
>   



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