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Hi,<br>
<br>
I think I did found an inconsistency in the component order in the
compute derivative filter. <br>
<br>
The web page
<a class="moz-txt-link-freetext" href="http://www.vtk.org/doc/release/4.0/html/classvtkHexahedron.html#a16">http://www.vtk.org/doc/release/4.0/html/classvtkHexahedron.html#a16</a>
said <br>
<br>
Compute derivatives given cell...<br>
On the other hand, if computing derivatives of velocity (vx,vy,vz)
dim=3, 24 values are supplied ((vx,vy,vz)1, (vx,vy,vz)2, ....()8),
and 9 deriv values are returned<b>
((d(vx)/dx),(d(vx)/dy),(d(vx)/dz), (d(vy)/dx),(d(vy)/dy),
(d(vy)/dz), (d(vz)/dx),(d(vz)/dy),(d(vz)/dz)).</b><br>
<br>
I created a simple test to verified the order (file attached), with
9 vectorial fields that after the Compute Derivative will generate a
tensor full of zeros but with one component equal to one.<br>
<br>
for example<br>
If we follow the documentation the field dxdy must generate a tensor
with the terms <br>
0 1 0 0 0 0 0 0 0<br>
<br>
but paraview gives<br>
0 0 0 1 0 0 0 0 0<br>
<br>
can any one confirm this???<br>
<br>
working with paraview 3.14.1 64bit Linux <br>
<br>
Thanks<br>
<br>
<pre class="moz-signature" cols="72">--
Felipe Bordeu Weldt
Ingénieur de Recherche
-------------------------------------
Tél. : 33 (0)2 40 37 16 57
Fax. : 33 (0)2 40 74 74 06
<a class="moz-txt-link-abbreviated" href="mailto:Felipe.Bordeu@ec-nantes.fr">Felipe.Bordeu@ec-nantes.fr</a>
Institut GeM - UMR CNRS 6183
École Centrale Nantes
1 Rue de La Noë, 44321 Nantes, FRANCE
-------------------------------------</pre>
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