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Hi Janusz,<br>
<br>
If you have image data there is a filter for this.
Plugins/SQToolkit/vtkSQVortexFilter.h<br>
<br>
Burlen<br>
<br>
On 05/03/2012 12:47 AM, Janusz Michalik wrote:
<blockquote
cite="mid:5241B35CC134BE4DBC1DFF0CAEE271372C43DADB@rexma.intranet.epfl.ch"
type="cite">
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<div style="direction: ltr; font-family: Tahoma; color: rgb(0, 0,
0); font-size: 10pt;">Hello all,<br>
<br>
Has anyone tried to compute the eigenvalues of tensors?<br>
<br>
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.
<br>
<br>
Thank you in advance.<br>
<br>
-Janusz<br>
</div>
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