Hello Ken,
I computed the x-velocity component using a calculator filter. Then
I applied the 'Gradient of Unstructured Data Set' filter to the output
of the previous filter. This is the place where the computation fails.
I sent you the data in a private email.
Best regards,
Martin Vymazal
Quoting "Moreland, Kenneth" <[email protected]>:
More information please.
How are you extracting the x-component of the velocity? What filter
are you running to compute the gradient? Would it be possible to
post some example data that exhibits the problem so that we can
replicate it?
-Ken
On 9/22/10 7:12 AM, "Martin Vymazal" <[email protected]> wrote:
Dear ParaView developers,
I'm trying to compute gradient of my x-component of velocity on a
grid of tetrahedra which has 55244 DOF. ParaView fails to compute the
gradients with the following error message:
Generic Warning: In
/home/kitware/Dashboard/MyTests/ParaView-3-8/ParaView-3.8/ParaView/VTK/Common/vtkMath.cxx,
line
1338
Unable to factor linear system
The mesh does not have degenerate/ugly elements, but it has some sharp
edges (in the inlet/outlet area). Is this a problem? If not, is there
a way of avoiding the error?
Thank you very much.
Martin Vymazal
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**** Kenneth Moreland
*** Sandia National Laboratories
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