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https://issues.apache.org/jira/browse/LUCENE-5118?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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David Smiley closed LUCENE-5118.
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Resolution: Fixed
Fix Version/s: 5.0
> spatial strategy- add multiplier to makeDistanceValueSource()
> -------------------------------------------------------------
>
> Key: LUCENE-5118
> URL: https://issues.apache.org/jira/browse/LUCENE-5118
> Project: Lucene - Core
> Issue Type: New Feature
> Components: modules/spatial
> Reporter: David Smiley
> Assignee: David Smiley
> Fix For: 5.0, 4.5
>
> Attachments:
> LUCENE-5118__multiplier_to_spatial_makeDistanceValueSource.patch
>
>
> SpatialStrategy has this abstract method:
> {code}
> /**
> * Make a ValueSource returning the distance between the center of the
> * indexed shape and {@code queryPoint}. If there are multiple indexed
> shapes
> * then the closest one is chosen.
> */
> public abstract ValueSource makeDistanceValueSource(Point queryPoint);
> {code}
> I'd like to add another argument {{double multiplier}} that is internally
> multiplied to the result per document. It's a convenience over having the
> user wrap this with another ValueSource, and it'd be faster too. Typical
> usage would be to add a degrees-to-kilometers multiplier.
> The current method could be marked deprecated with a default implementation
> that invokes the new one with a 1.0 multiplier.
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