[jira] [Resolved] (GEOMETRY-26) Vector safeNormalize()

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

     [ https://issues.apache.org/jira/browse/GEOMETRY-26?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Matt Juntunen resolved GEOMETRY-26.
-----------------------------------
    Resolution: Won't Fix

> Vector safeNormalize()
> ----------------------
>
>                 Key: GEOMETRY-26
>                 URL: https://issues.apache.org/jira/browse/GEOMETRY-26
>             Project: Apache Commons Geometry
>          Issue Type: Wish
>            Reporter: Matt Juntunen
>            Priority: Minor
>
> I propose adding a {{safeNormalize}} method to the {{Vector}} classes that will return null instead throwing an exception when attempting to normalize. The rationale for this is that
> in some algorithms, different actions may need to be taken depending on whether or not a vector can be normalized. It is inefficient to calculate the norm, determine if it is valid (zero, NaN, or infinite), and then calculate it again in the {{normalize}} method to perform the normalization. One approach to avoid this is to simply call {{normalize}} and then catch any exceptions that are thrown on failure (this is what {{QuaternionRotation.getAxis()}} does). However, I think having a null check will produce cleaner code.



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