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<DIV><SPAN class=052154409-02072010><FONT face=Arial color=#0000ff
size=2>Thanks! My mistake was in this line:</FONT></SPAN></DIV>
<DIV><SPAN class=052154409-02072010><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=052154409-02072010>g.SetInputScalars(0, var)</SPAN></DIV>
<DIV><SPAN class=052154409-02072010></SPAN> </DIV>
<DIV><SPAN class=052154409-02072010><FONT face=Arial color=#0000ff size=2>I was
using 1 instead of 0 as I was getting the enum from vtkDataSet rather than
vtkDataObject, which is why it couldn't find my variable (it was looking for
cell data rather than point data). Confusion on my part (partly due to lack of
coffee), but thank you for providing the example.</FONT></SPAN></DIV>
<DIV><SPAN class=052154409-02072010><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=052154409-02072010><FONT face=Arial color=#0000ff
size=2>Regards,</FONT></SPAN></DIV>
<DIV><SPAN class=052154409-02072010><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=052154409-02072010><FONT face=Arial color=#0000ff
size=2>Adriano</FONT></SPAN></DIV>
<DIV><SPAN class=052154409-02072010><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><FONT size=2>===================================<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: agagliardi@ara.co.uk<BR>Url: www.ara.co.uk </FONT></DIV>
<DIV> </DIV><BR>
<DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left>
<HR tabIndex=-1>
<FONT face=Tahoma size=2><B>From:</B> aur.marsan@gmail.com
[mailto:aur.marsan@gmail.com] <B>On Behalf Of </B>Aurélien
Marsan<BR><B>Sent:</B> 02 July 2010 10:28<BR><B>To:</B>
agagliardi@ara.co.uk<BR><B>Cc:</B> paraview@paraview.org<BR><B>Subject:</B> Re:
[Paraview] Compute gradients<BR></FONT><BR></DIV>
<DIV></DIV>Here an example to compute the gradient of var, and store the result
as new_var. <BR><BR>
<BLOCKQUOTE class=gmail_quote
style="PADDING-LEFT: 1ex; MARGIN: 0pt 0pt 0pt 0.8ex; BORDER-LEFT: rgb(204,204,204) 1px solid">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="PADDING-LEFT: 1ex; MARGIN: 0pt 0pt 0pt 0.8ex; BORDER-LEFT: rgb(204,204,204) 1px solid"><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><BR>**********************************************************************<BR>This
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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><p>**********************************************************************<br />This email contains information that is private and confidential and is intended only for the addressee.<br />If you are not the intended recipient please delete it and notify us immediately by e-mailing the sender.<br />Note: All email sent to or from this address may be accessed by someone other than the recipient, for<br />system management and security reasons.<br />Aircraft Research Association Ltd. Registered in England, Registration No 503668 Registered Office:<br />Manton Lane, Bedford MK41 7PF England VAT No GB 196351245</p><p>**********************************************************************</p>
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