[
https://issues.apache.org/jira/browse/LUCENE-2151?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Chris Male updated LUCENE-2151:
-------------------------------
Attachment: LUCENE-2151.patch
Updated patch so that it uses the DistanceUnits.convert instance method.
> Abstract the distance calculation process in the Spatial contrib
> ----------------------------------------------------------------
>
> Key: LUCENE-2151
> URL: https://issues.apache.org/jira/browse/LUCENE-2151
> Project: Lucene - Java
> Issue Type: Improvement
> Components: contrib/spatial
> Affects Versions: 3.1
> Reporter: Chris Male
> Assignee: Simon Willnauer
> Attachments: LUCENE-2151.patch, LUCENE-2151.patch
>
>
> The spatial contrib shouldn't tie users to one particular way of calculating
> distances. Wikipedia lists multiple different formulas for the great-circle
> distance calculation, and there are alternatives to that as well. In a
> situation where many documents have the same points, it would be useful to be
> able to cache some calculated values as well (currently this is sort of
> handled in the filtering process itself).
> This issue addresses this by abstracting away the distance calculator,
> allowing the user to provide the implementation of choice. It would then be
> possible to swap in different distance calculation strategies without
> altering the distance filtering process itself.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
---------------------------------------------------------------------
To unsubscribe, e-mail: java-dev-unsubscr...@lucene.apache.org
For additional commands, e-mail: java-dev-h...@lucene.apache.org
