[Insight-users] FEMRegistrationFilter: SetFixedFile vs. SetFixedImage

[Joe Maisog]

Good morning all!  The class FEMRegistrationFilter has two similar member
functions: SetFixedFile and SetFixedImage.  What is the interaction between
these two member functions?  If both are called but they conflict, does one
trump the other?  Or, does the latest one invoked trump the other?
(Similarly for MovingImage and MovingFile.)

Thanks,

joe