Hello,

I'm starting to use GIFTI in a tool I'm writing and I didn't find anywhere a description of how the transformation matrix is to be applied to point coordinates.  I assume it is meant to be like in NIFTI files, but I think it should be specified explicitly to avoid mistakes and thus incompatibilities between software.  So if p is a column vector of (x, y, z, 1), and T is the transformation matrix, is it meant to be applied as:
A) T * p
as I suspect, or
B) p' * T  
(p' being the transposed, row vector form of p) ?

Cheers,
Marc