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Posted to dev@lucene.apache.org by "Nicholas Knize (JIRA)" <ji...@apache.org> on 2015/04/23 23:08:38 UTC
[jira] [Comment Edited] (LUCENE-6450) Add simple encoded
GeoPointField type to core
[ https://issues.apache.org/jira/browse/LUCENE-6450?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14509807#comment-14509807 ]
Nicholas Knize edited comment on LUCENE-6450 at 4/23/15 9:07 PM:
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Initial patch that adds GeoPointField type, GeoBBoxQuery, GeoPolygonQuery and simple systematic unit tests.
was (Author: nknize):
Initial patch that adds GeoPointField type, GeoBBoxQuery, GeoPolygonQuery and simple unit tests.
> Add simple encoded GeoPointField type to core
> ---------------------------------------------
>
> Key: LUCENE-6450
> URL: https://issues.apache.org/jira/browse/LUCENE-6450
> Project: Lucene - Core
> Issue Type: New Feature
> Affects Versions: 5.x
> Reporter: Nicholas Knize
> Priority: Minor
> Attachments: LUCENE-6450.patch
>
>
> At the moment all spatial capabilities, including basic point based indexing and querying, require the lucene-spatial module. The spatial module, designed to handle all things geo, requires dependency overhead (s4j, jts) to provide spatial rigor for even the most simplistic spatial search use-cases (e.g., lat/lon bounding box, point in poly, distance search). This feature trims the overhead by adding a new GeoPointField type to core along with GeoBoundingBoxQuery, GeoPolygonQuery, and GeoDistanceQuery classes to the .search package. This field is intended as a straightforward lightweight type for the most basic geo point use-cases without the overhead.
> The field uses simple bit twiddling operations (currently morton hashing) to encode lat/lon into a single long term. The queries leverage simple multi-phase filtering that starts by leveraging NumericRangeQuery to reduce candidate terms deferring the more expensive mathematics to the smaller candidate sets.
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