mode of anisotropy

[Gustavo Sudre]

Gary,

I was wondering if it's possible to pull out the 3 eigenvalues from the .vtk files output by tsa_sampling? I want to calculate the mode of anisotropy. I can currently pull out AD, RD, and FA, and I was planning on using a system of equations to figure out the 3 values. However, if they're already neatly exported somewhere else, life will be much easier :)

Thanks,

Gustavo

[Philip A Cook]

Hi,

I looked at the source code and I think this would be easy to add to MedialTensorField.cxx, but it's not currently possible. The output of AD, RD, FA, etc is hard coded, there's no option that I can see to get the individual eigenvalues.

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[Hui Zhang]

Hi Gustavo,

Phil is right that at the moment the outputs are hard coded.  But it should be straightforward to modify the file MedialTensorField.cxx to output anything that can be derived from a tensor, including the eigenvalues, yourself.  I think this is going to be much easier than solving a system of equations :-).

Gary

[Gustavo Sudre]

Yep, much easier indeed! Got it working :)

Thanks,

Gustavo

[Manuel Blesa Cábez]

Hello experts,

I was wondering if is it possible to use another maps for the TSA, not derived from a tensor (e.g. NODDI). Thanks in advance.

Regards,

Manuel