[Paraview] Compute gradients

[Aurélien Marsan]

Here an example to compute the gradient of var, and store the result as
new_var.

g = vtk.vtkGradientFilter()
>         g.SetInput(Bloc)
>         g.SetInputScalars(0, var)
>         g.SetResultArrayName(new_var)
>         g.Update()
>
> Bloc.GetPointData().AddArray(g.GetOutput().GetPointData().GetArray(new_var))
>

Maybe you forgot the "Update" ?

2010/7/2 Adriano Gagliardi <agagliardi at ara.co.uk>

>
> Does anyone have an example of using vtkGradientFilter to compute the
> gradients of a single vector in your data-set? I've tried using
> SetInputScalars, but it tells me that there is no input array,. although
> the
> array I pass it does exist.
>
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-- 
Aurélien MARSAN
Doctorant Cifre Turbomeca/LMFA
aurelien.marsan at ecl2009.ec-lyon.fr
06.31.98.26.73
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