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Posted to dev@lucene.apache.org by "Nicholas Knize (JIRA)" <ji...@apache.org> on 2015/07/29 22:45:04 UTC
[jira] [Comment Edited] (LUCENE-6647) Add GeoHash String Utilities
to core GeoUtils
[ https://issues.apache.org/jira/browse/LUCENE-6647?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14646732#comment-14646732 ]
Nicholas Knize edited comment on LUCENE-6647 at 7/29/15 8:44 PM:
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Latest patch for LUCENE-6704 changes mortonEncoding to use full 32bit precision for lat/lon values. This fixes the issue where the max lat/lon was not decoding to the correct precision leading to the failure posted above. A patch will be posted here that is compatible with the changes from LUCENE-6704.
was (Author: nknize):
Latest patch for LUCENE-6704 changes mortonEncoding to use full 32bit precision for lat/lon values. This fixes an issue where the max lat/lon was not decoding to the correct precision. A patch will be posted here that is compatible with these changes.
> Add GeoHash String Utilities to core GeoUtils
> ---------------------------------------------
>
> Key: LUCENE-6647
> URL: https://issues.apache.org/jira/browse/LUCENE-6647
> Project: Lucene - Core
> Issue Type: New Feature
> Reporter: Nicholas Knize
> Attachments: LUCENE-6647.patch, LUCENE-6647.patch
>
>
> GeoPointField uses morton encoding to efficiently pack lat/lon values into a single long. GeoHashing effectively does the same thing but uses base 32 encoding to represent this long value as a "human readable" string. Many user applications already use the string representation of the hash. This issue simply adds the base32 string representation of the already computed morton code.
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