Here an example to compute the gradient of var, and store the result as new_var. <br><br><blockquote style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;" class="gmail_quote">g = vtk.vtkGradientFilter()<br>
g.SetInput(Bloc)<br> g.SetInputScalars(0, var)<br> g.SetResultArrayName(new_var)<br> g.Update()<br> Bloc.GetPointData().AddArray(g.GetOutput().GetPointData().GetArray(new_var))<br></blockquote>
<br>Maybe you forgot the "Update" ? <br><br><div class="gmail_quote">2010/7/2 Adriano Gagliardi <span dir="ltr"><<a href="mailto:agagliardi@ara.co.uk">agagliardi@ara.co.uk</a>></span><br><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
<br>
Does anyone have an example of using vtkGradientFilter to compute the<br>
gradients of a single vector in your data-set? I've tried using<br>
SetInputScalars, but it tells me that there is no input array,. although the<br>
array I pass it does exist.<br>
<br>
===================================<br>
<br>
Adriano Gagliardi MEng PhD<br>
Business Sector Leader<br>
Computational Aerodynamics<br>
Aircraft Research Association Ltd.<br>
Manton Lane<br>
Bedford<br>
<br>
Tel: 01234 32 4644<br>
E-mail: <a href="mailto:agagliardi@ara.co.uk">agagliardi@ara.co.uk</a><br>
Url: <a href="http://www.ara.co.uk" target="_blank">www.ara.co.uk</a><br>
<br>
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</blockquote></div><br><br clear="all"><br>-- <br>Aurélien MARSAN<br>Doctorant Cifre Turbomeca/LMFA<br><a href="mailto:aurelien.marsan@ecl2009.ec-lyon.fr">aurelien.marsan@ecl2009.ec-lyon.fr</a><br>06.31.98.26.73<br>