Andy, Today, I have tried again on 3.12.0. I don't know why but today both of the methods you mentioned work.
Thank you. Makoto 2012/10/25 Andy Bauer <andy.ba...@kitware.com> > What version of ParaView are you using? I was able to use > "hstack([VelocityX, VelocityY, VelocityZ])" with the Python Calculator > filter in v3.14.1. Alternatively you could try the Calculator filter with > "iHat*VelocityX+jHat*VelocityY+kHat*VelocityZ". > > Andy > > On Wed, Oct 24, 2012 at 12:17 PM, 中田拓馬 <uiro...@gmail.com> wrote: > >> 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 >> >> >
_______________________________________________ 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