Makoto, Please see http://www.paraview.org/Wiki/Beginning_Filters#Calculator_filter and http://www.paraview.org/Wiki/Advanced_Tips_and_Tricks#Creating_vectors_from_2_or_3_scalars on how to combine velocity vector components into a 3-components vector.
Karl 中田拓馬 wrote, On 24.10.2012 18:17: > Dear all, > > I am trying to compute vorticity from separated velocity vectors, but > pre-installed filter of paraview seems to require 3-components vector as > an input. Then, I have tried to use the "Python Calculator" filter to > construct it. I put "hstack([VelocityX, VelocityY, VelocityZ])" into > the "Expression" field following the wiki. However, it created just a > copy of VelocityX instead of 3-components vector. How can I construct > 3-components array form separated velocity vectors? > > I have also tried to use the "Programmable Filter". But, it has been > really difficult for me and I could not just extract the vector from the > input. The vectors live in vtkUnstructuredGrid in a > vtkMultiBlockDataSet and there are no function to extract Point Data > form it. > > Regards, > > Makoto _______________________________________________ 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
