Re: [Paraview] Vorticity computation from separated velocity array
Karl, Thank you very much. The links really help me. Makoto 2012/10/25 Karl König kkoeni...@web.de 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
Re: [Paraview] Vorticity computation from separated velocity array
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
[Paraview] Vorticity computation from separated velocity array
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
