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https://issues.apache.org/jira/browse/LUCENE-7906?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ignacio Vera updated LUCENE-7906:
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Attachment: LUCENE-7906.patch
LUCENE-7906-test.patch
Hi [~daddywri],
Attached is the patches implementing GeoArea for polygons. I provide extended
testing,
Some notes:
a) I have to modified the method getEdgePoints() from
GeoCompositeMembershipShape. It ewas returning only the edge points for the
first shape which seems incorrect. My implementation is not very efficient but
works.
b)To be able able to bound the intersection of convex polygons I create the
conves counter part. Maybe there is more efficient way of doing that.
c) Would it be worthy to push the geoArea interface down to GeoShape?
Cheers,
I.
> Spatial relationship between Geoshapes
> --------------------------------------
>
> Key: LUCENE-7906
> URL: https://issues.apache.org/jira/browse/LUCENE-7906
> Project: Lucene - Core
> Issue Type: Improvement
> Components: modules/spatial3d
> Reporter: Ignacio Vera
> Assignee: Karl Wright
> Attachments: LUCENE-7906.patch, LUCENE-7906-test.patch
>
>
> Hi,
> Working with geosahpes and trying to resolve spatial relationships between
> them I came accross a big limitation when trying to solve the relationship
> between two geopolygons. This object does not expose the internal structure.
> In particular at some point, it is necessary to check if one polygon
> intersects the edges of the other polygon which currently is not possible as
> edges are not exposed.
> To be able to perform such operation it can be several options. The ones I
> can think of are:
> 1) Expose the edges of the polygon ( and probably the notable points for the
> edges) adding getters in the GeoPolygon interface. Easy to implement and
> leave users the responsability of coding the spatial relationship.
> 2) Extends GeoPolygon interface to extends geoarea and leave the object make
> the spatial relationship.
> 3) Extends GeoShape interface so all shapes can infer the spatial
> relationship with other GeoShapes.
> I might be bias as my interest is in 2d Shapes in the unit sphere and there
> might be some cases which what I propose cannot be implemented or are againts
> the aim of the library.
> What do you think?
> Cheers,
> Ignacio
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