It¹s also worth noting that in Connectome Workbench we moved away from the
deformation map file as it enforces a particular resampling of the data as
well (not just a data transformation).  Instead we use the deformed and
target spheres to store the registration and this allows for choice in
different resampling approaches whenever resampling is performed.



From:  <> on behalf of "Harwell, John"
Reply-To:  "Caret, SureFit, and SuMS software users"
Date:  Friday, October 20, 2017 at 2:36 PM
To:  "Caret, SureFit, and SuMS software users"
Subject:  Re: [caret-users] info in the deformation maps


You are correct, it is not an affine matrix.   A description of the file¹s
content is available at

Essentially, the deformation map file defines a resampling of one surface
triangular mesh to another.  For each vertex in the target surface, it
identifies the corresponding location in the source surface using
barycentric coordinates.  A barycentric coordinate contains three vertex
indices that form a triangle and the weights define the location within the

John H

On Oct 20, 2017, at 1:00 PM, tony han <> wrote:
> Hi,
> I notice that there are 6 columns of data stored in the deformation map
> (actually it's 7 but the first one looks like the indices). So what are these
> columns? It doesn't look like affine matrices? Thanks!
> Best,
> Tony
> _______________________________________________
> caret-users mailing list

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