[jira] [Resolved] (GEOMETRY-140) Vector/Point EquivalenceComparator

["Matt Juntunen (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/GEOMETRY-140?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Matt Juntunen resolved GEOMETRY-140.
------------------------------------
    Resolution: Won't Do

> Vector/Point EquivalenceComparator
> ----------------------------------
>
>                 Key: GEOMETRY-140
>                 URL: https://issues.apache.org/jira/browse/GEOMETRY-140
>             Project: Apache Commons Geometry
>          Issue Type: New Feature
>            Reporter: Matt Juntunen
>            Priority: Minor
>
> I propose adding the following static method to the VectorXD and PointXS classes, where {{P}} is the Vector/Point type:
> {code:java}
> public static Comparator<P> equivalenceComparator(Precision.DoubleEquivalence eq) {...}
> {code}
> The method would return a {{Comparator}} that delegates to the {{Precision.DoubleEquivalence.compare()}} method of the argument, passing each vector/point coordinate in order. This comparator could be used, for example, to create {{TreeMap}} or {{TreeSet}} instances that loosely compare vectors/points, as done currently in [SimpleTriangleMesh|https://github.com/apache/commons-geometry/blob/master/commons-geometry-euclidean/src/main/java/org/apache/commons/geometry/euclidean/threed/mesh/SimpleTriangleMesh.java#L679].



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