[General] Merge data from multiple slices

leotsixri · December 10, 2017, 18:10

Hi,

I am trying to merge cell/point data from multiple slices in ParaView so as to find the average values of each cell/point (over the same geometry and for a particular timestep).

Any ideas?

Many thanks, Leonidas

Flowkersma · December 21, 2017, 10:01

Hi Leonidas,

if the slices have exactly same mesh then you can just use the "Temporal Statistics" filter. Firstly, you have to load all the slices so that ParaView recognizes that the files are indeed different time steps. You can either load the files from the GUI by giving them a name with index such as filename001.vtk, filename002.vtk,filename003.vtk, etc. Or you can load just one file from the GUI and use Python to load all the files:

Code:

r = GetActiveSource()
r.FileNames = ['filename001.vtk, 'filename002.vtk','filename003.vtk']

See also How can I use python script to generate animation from 2000 frames of vtk datasets

Regards,
Mikko

December 10, 2017, 18:10	Merge data from multiple slices	#1
leotsixri New Member Leonidas Join Date: Oct 2016 Location: UK Posts: 5 Rep Power: 10	Hi, I am trying to merge cell/point data from multiple slices in ParaView so as to find the average values of each cell/point (over the same geometry and for a particular timestep). Any ideas? Many thanks, Leonidas

December 21, 2017, 10:01		#2
Flowkersma Senior Member Mikko Join Date: Jul 2014 Location: The Hague, The Netherlands Posts: 243 Rep Power: 13	Hi Leonidas, if the slices have exactly same mesh then you can just use the "Temporal Statistics" filter. Firstly, you have to load all the slices so that ParaView recognizes that the files are indeed different time steps. You can either load the files from the GUI by giving them a name with index such as filename001.vtk, filename002.vtk,filename003.vtk, etc. Or you can load just one file from the GUI and use Python to load all the files: Code: r = GetActiveSource() r.FileNames = ['filename001.vtk, 'filename002.vtk','filename003.vtk'] See also How can I use python script to generate animation from 2000 frames of vtk datasets Regards, Mikko

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