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https://issues.apache.org/jira/browse/GEOMETRY-118?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17308619#comment-17308619
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Gilles Sadowski commented on GEOMETRY-118:
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{quote}At least I should not get a "wrong" value if I accidentally call this
method.
{quote}
Bugs (or numerical accuracy) notwithstanding, the code will return what the
caller asked for; it should not try and guess user's intent.
IIUC, the check prevents the method to be called on certain instances of the
class. Why not have only the 2-args method, letting the user create a valid
instance (i.e. one in which {{m01}} is 0)?
> AffineTransformMatrix2D should support direct transformation of x/y values
> --------------------------------------------------------------------------
>
> Key: GEOMETRY-118
> URL: https://issues.apache.org/jira/browse/GEOMETRY-118
> Project: Apache Commons Geometry
> Issue Type: Improvement
> Reporter: Christoph Läubrich
> Priority: Major
>
> [~mattjuntunen] as discussed on the mailinglist, it would be convenient if
> there would be methods to directly transform a single x/y value instead of
> using vectors and/or export the matrix as an array and perform it manually.
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