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https://issues.apache.org/jira/browse/GEOMETRY-118?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17308349#comment-17308349
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Christoph Läubrich commented on GEOMETRY-118:
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> I don't get why on the one hand it is assumed that "y has no influence"
> while, on the other, there is a check on m01
Maybe "assume" is the wrong wording here. Actually if I know that I do not use
shear transforms (or do not shear in x direction) I can always use this method.
At least I should not get a "wrong" value if I accidentally call this method.
An alternative would be to return NaN but I found the exception more valuable
here to detect problems.
> Why is the one-arg method not using LinearCombination while the two-args
> method is?
LinearCombination seems only useful if more than one value is combined
> 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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