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Posted to dev@lucene.apache.org by "Joel Bernstein (JIRA)" <ji...@apache.org> on 2019/07/01 15:39:00 UTC
[jira] [Updated] (SOLR-13589) Allow zplot to visualize 2D clusters
and convex hulls
[ https://issues.apache.org/jira/browse/SOLR-13589?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Joel Bernstein updated SOLR-13589:
----------------------------------
Summary: Allow zplot to visualize 2D clusters and convex hulls (was: Add projectToBorder Stream Evaluator )
> Allow zplot to visualize 2D clusters and convex hulls
> -----------------------------------------------------
>
> Key: SOLR-13589
> URL: https://issues.apache.org/jira/browse/SOLR-13589
> Project: Solr
> Issue Type: New Feature
> Security Level: Public(Default Security Level. Issues are Public)
> Components: streaming expressions
> Reporter: Joel Bernstein
> Priority: Major
> Attachments: SOLR-13589.patch, SOLR-13589.patch
>
>
> The *projectToBorder* function is a function that works together with the existing *convexHull* function. It takes two parameters:
> 1) A Convex Hull created by the *convexHull* function.
> 2) A matrix of 2D points to project to the border.
> The projectToBorder function then projects each 2D point to the Convex Hull border and returns a matrix with these points.
> Using this approach the border of a convex hull can be visualized in interesting ways.
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