<div dir="ltr"><div>I mispelled it -- it's the Tessellate filter. <br><br></div>I'm not sure how the Point Data To Cell Data filter is supposed to fix the problem. The Gradient of Unstructured Data Set filter uses that filter in the implementation.<br></div><div class="gmail_extra"><br><div class="gmail_quote">On Fri, Jul 15, 2016 at 7:37 AM, Stéphane Dellacherie <span dir="ltr"><<a href="mailto:stephane.dellacherie@polymtl.ca" target="_blank">stephane.dellacherie@polymtl.ca</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000">
<font size="+1">Dear Andy,<br>
<br>
Thank you for your answer.<br>
<br>
I don't find the "tesselate filter" in the alphabetical list :
would you tell me what is the right filter ? Thank you.<br>
<br>
Moreover, if the pb is due to the fact that I use quadratic
triangles, the filter </font><font size="+1">GradientOfUnstructuredDataSet
should works after the use of the filter PointDataToCellData ? But
it does not still work.<br>
<br>
Best<br>
<br>
Stéph<br>
<br>
</font><div><div class="h5"><br>
<div>Le 14/07/2016 20:17, Andy Bauer a
écrit :<br>
</div>
<blockquote type="cite">
<div dir="ltr">
<div>
<div>
<div>Hi,<br>
<br>
</div>
It looks like gradients aren't getting computed properly
for quadratic triangles. A quick work around is to use the
tesselate filter to subdivide the quadratic triangles while
converting them to linear triangles. The gradient of
unstructured data filter should work after that. I'll add in
a bug report to see about getting this fixed as well.<br>
<br>
</div>
Best,<br>
</div>
Andy<br>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On Thu, Jul 14, 2016 at 5:23 PM,
Stéphane Dellacherie <span dir="ltr"><<a href="mailto:stephane.dellacherie@polymtl.ca" target="_blank">stephane.dellacherie@polymtl.ca</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000"> Dear Colleague,<br>
<div><font size="+1"> <br>
I am trying to use the fielter
GradientOfUnstructuredDataSet on the field T which is
in the vtk file example.vtk (see the joined file).
Nevertheless, I only obtain a NULL gradient (see the
file tutu.png) although the T field is not a constant
scalar field.<br>
<br>
Is it normal ?<br>
<br>
Thank you for your help !<br>
<br>
With my best regards.<span><font color="#888888"><br>
<br>
Stéphane<br>
<br>
</font></span></font><span><font color="#888888">
<pre cols="72">--
___________________________________________________________
Stéphane Dellacherie
CEA Paris-Saclay / Direction de l’Énergie Nucléaire
École Polytechnique de Montréal / Dpt de Génie Mécanique
Tél. : (001) 514.340.47.11 (#2488)
___________________________________________________________</pre>
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<pre cols="72">--
___________________________________________________________
Stéphane Dellacherie
CEA Paris-Saclay / Direction de l’Énergie Nucléaire
École Polytechnique de Montréal / Dpt de Génie Mécanique
Tél. : (001) 514.340.47.11 (#2488)
___________________________________________________________</pre>
</div></div></div>
</blockquote></div><br></div>