[Paraview] Compute Derivatives component order??

[Felipe Bordeu]

Hi,

I think I did found an inconsistency in the component order in the 
compute derivative filter.

The web page 
http://www.vtk.org/doc/release/4.0/html/classvtkHexahedron.html#a16 said

Compute derivatives given cell...
  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*((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)).*

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.

for example
If we follow the documentation the field dxdy must generate a tensor 
with the terms
0 1 0  0 0 0 0 0 0

but paraview gives
0 0 0 1 0 0 0 0 0

can any one confirm this???

working with paraview 3.14.1 64bit Linux

Thanks

-- 

Felipe Bordeu Weldt
Ingénieur de Recherche
-------------------------------------
Tél. : 33 (0)2 40 37 16 57
Fax. : 33 (0)2 40 74 74 06
Felipe.Bordeu at ec-nantes.fr
Institut GeM - UMR CNRS 6183
École Centrale Nantes
1 Rue de La Noë, 44321 Nantes, FRANCE
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