Project: datamanagement
Issue DM-197: Replace PositionFunctor with some flavor of XYTransform
afw has a special functor PositionFunctor that acts like an XYTransform. Unless PositionFunctor does not need to be invertible, it makes sense to merge these, likely by replacing PositionFunctor with the transform from afw::image::XYTransformFromWcsPair (as suggested by Jim Bosch on Trac ticket #2214).
Story points: 1