[Paraview] Calculation of eigenvalues of velocity tensors

[Hal Canary]

On 05/03/2012 03:47 AM, Janusz Michalik wrote:
> Has anyone tried to compute the eigenvalues of tensors?
>
> In particular, I am interested in plotting the isosurface of the second
> eigenvalue of S^2+Omega^2 where S and Omega are the symmetric and
> antisymetric parts of the velocity gradient tensor \nabla U.


I needed to get eigenvalues and eigenvectors from a tensor recently and 
wrote a macro to do it.  I'll attach it.


-- 
Hal Canary
http://cs.unc.edu/~hal/
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