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Karl Wright edited comment on LUCENE-6196 at 2/2/15 7:06 PM: ------------------------------------------------------------- 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. -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@lucene.apache.org For additional commands, e-mail: dev-h...@lucene.apache.org