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https://issues.apache.org/jira/browse/LUCENE-6196?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14301675#comment-14301675
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Karl Wright edited comment on LUCENE-6196 at 2/2/15 7:06 PM:
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bq.  I theoretically don't need anything from you for this to have a home in 
Spatial4j but I'll let you know otherwise – e.g. a simple attestation that you 
had permission from your employer to license it as-such.

Are you asking me yet again whether I had permission to contribute this?

The permission I have from my employer is a long-granted corporate permission 
to contribute to Lucene and Solr.  My employer is aware that any and all code 
contributed to this project will be licensed with the Apache 2 license.  There 
are, of course, certain restrictions as to exactly *what* can be contributed, 
but I do not believe this geospatial library violates any of those restrictions.

I hope this is sufficient; you are unlikely to get more detail.

However, as I have indicated earlier in this thread, unless this code winds up 
in Lucene or Solr, for the moment I can't contribute to it any further.  This 
may change in the future, but that is the situation at the moment.



was (Author: kwri...@metacarta.com):
bq.  I theoretically don't need anything from you for this to have a home in 
Spatial4j but I'll let you know otherwise – e.g. a simple attestation that you 
had permission from your employer to license it as-such.

Are you asking me yet again whether I had permission to contribute this?

The permission I have from my employer is a long-granted corporate permission 
to contribute to Lucene and Solr.  My employer is aware that any and all code 
contributed to this project will be licensed with the Apache 2 license.  There 
are, of course, certain restrictions as to exactly *what* can be contributed, 
but I do not believe this geospatial library violates any of those restrictions.

I hope this is sufficient; you are unlikely to get more detail.



> Include geo3d package, along with Lucene integration to make it useful
> ----------------------------------------------------------------------
>
>                 Key: LUCENE-6196
>                 URL: https://issues.apache.org/jira/browse/LUCENE-6196
>             Project: Lucene - Core
>          Issue Type: New Feature
>          Components: modules/spatial
>            Reporter: Karl Wright
>            Assignee: David Smiley
>         Attachments: ShapeImpl.java, geo3d-tests.zip, geo3d.zip
>
>
> I would like to explore contributing a geo3d package to Lucene.  This can be 
> used in conjunction with Lucene search, both for generating geohashes (via 
> spatial4j) for complex geographic shapes, as well as limiting results 
> resulting from those queries to those results within the exact shape in 
> highly performant ways.
> The package uses 3d planar geometry to do its magic, which basically limits 
> computation necessary to determine membership (once a shape has been 
> initialized, of course) to only multiplications and additions, which makes it 
> feasible to construct a performant BoostSource-based filter for geographic 
> shapes.  The math is somewhat more involved when generating geohashes, but is 
> still more than fast enough to do a good job.



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