[ITK-users] Affine Transform Direction

[Emma Saunders]

I have a 3D Affine transform and a 2D displacement field of a slice.  I
would like to compose them.  Is it valid to  use the composite transform
and simply load the 2D displacement field as a 3D image,

Where does the affine transform obtain it's directional information from?

Or would I have to past the 2D displacement field into it's original 3D
position then apply the transform and compress this back to a 2D
displacement field?

Thoughts appreciated

Thanks

Emma
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