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https://issues.apache.org/jira/browse/LUCENE-7150?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15216918#comment-15216918
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Ryan Ernst commented on LUCENE-7150:
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bq. One problem at the moment is that all of geo3d works against a unit
sphere/ellipsoid, and uses units of radians.
bq. But this is an implementation detail. Literally, no user cares about this.
I agree this should be an implementation detail. Having all of these "solids"
and stuff as part of the public api just means 0.00001% will ever use this, and
that is a lot of code to keep around for such an esoteric use case. Advanced
users like that can still use eg PointsFormat to index in multiple dimensions
as their use case necessitates, but "geo" functionality should really be simple
for 99.9999% of users. I'm happy that we have geo3d here, but I think the name
still needs to be clearer (this is *not* 3d that almost any user would ever
think about) and we need public apis (and those to be the *only* public apis)
that operate the exact same as the other sphere based lat/lon geo support we
have (as the issue title implies).
> geo3d public APIs should match the 2D apis?
> -------------------------------------------
>
> Key: LUCENE-7150
> URL: https://issues.apache.org/jira/browse/LUCENE-7150
> Project: Lucene - Core
> Issue Type: Improvement
> Reporter: Michael McCandless
>
> I'm struggling to benchmark the equivalent to
> {{LatLonPoint.newDistanceQuery}} in the geo3d world.
> Ideally, I think we'd have a {{Geo3DPoint.newDistanceQuery}}? And it would
> take degrees, not radians, and radiusMeters, not an angle?
> And if I index and search using {{PlanetModel.SPHERE}} I think it should
> ideally give the same results as {{LatLonPoint.newDistanceQuery}}, which uses
> haversin.
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