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Posted to dev@lucene.apache.org by "Joel Bernstein (JIRA)" <ji...@apache.org> on 2019/07/01 00:19:00 UTC
[jira] [Created] (SOLR-13589) Add projectToBorder Stream Evaluator
Joel Bernstein created SOLR-13589:
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Summary: Add projectToBorder Stream Evaluator
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
The *projectToBorder* function is another computational geometry function that 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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