I'm getting what you expected for gradient of dxdy -- 0 1 0 0 0 0 0 0 0. I'm on 3.14.1 64 bit windows but the results should be the same.
Andy On Fri, Jun 8, 2012 at 8:46 AM, Felipe Bordeu <[email protected]>wrote: > 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 [email protected] > Institut GeM - UMR CNRS 6183 > École Centrale Nantes > 1 Rue de La Noë, 44321 Nantes, FRANCE > ------------------------------------- > > > _______________________________________________ > Powered by www.kitware.com > > Visit other Kitware open-source projects at > http://www.kitware.com/opensource/opensource.html > > Please keep messages on-topic and check the ParaView Wiki at: > http://paraview.org/Wiki/ParaView > > Follow this link to subscribe/unsubscribe: > http://www.paraview.org/mailman/listinfo/paraview > >
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