hi.
we have a system (a bespoke system) for non-linear registration of volumes.
we wondered if we could take the output transform and use that data to
shift the vertices of a surf.gii so that it's transformed.
much like wb_command and fnirt.
we tried it. in matlab (using gifti lib) it works.
unfortunately the resulting surface renders in matlab, but when saved not
in caret or workbench.
there are a million reasons why that could be. And I'm happy to mess with
the headers till it works.
but before i do I wondered if there might be an in-principle problem:
we move the vertices. but the face definitions remain the same, as in
gii =
vertices: [211995x3 single]
mat: [4x4 double]
faces: [423986x3 int32]
is that the basic problem, or is it just a question of messing with the xml
till caret or workbench accepts it?
I accept it's complicated. But our code does appear to work in terms of
moving vertices and aligning to a nifti within matlab, so unless the face
definitions are the fundamental issue for loading in caret5/7 (mainly
caret5 for the moment) I can just twiddle with headers till it loads
hopefully.
but if it's the faces I have a bigger problem.
best wishes
Colin
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