[Paraview] Python Script - access the raw data loaded from a dataset and creating new dataset (UNCLASSIFIED)

[Su, Simon M CTR USARMY ARL (US)]

Hi Burlen,

thanks
-simon
________________________________
From: Burlen Loring [bloring at lbl.gov]
Sent: Friday, May 09, 2014 6:23 PM
To: Su, Simon M CTR USARMY ARL (US); paraview at paraview.org
Subject: Re: [Paraview] Python Script - access the raw data loaded from a dataset and creating new dataset (UNCLASSIFIED)

Hi Simon,

Fetching the data to the client is generally a bad idea. Instead you could use a python programmable filter which allows you to operate on the data in place on the server side. http://www.paraview.org/Wiki/Python_Programmable_Filter

Burlen

On 05/09/2014 10:44 AM, Su, Simon M CTR USARMY ARL (US) wrote:

Classification: UNCLASSIFIED
Caveats: NONE

Hello,

Are there examples python script on accessing the raw data from the data
loaded in paraview from python script?

If I have the data loader selected on ParaView GUI and then I do the
following from the Python Shell,



tt = GetActiveSource()
tt.ElementVariables.Available


['CAUCHY_STRESS2XX', 'CAUCHY_STRESS2YY', 'CAUCHY_STRESS2ZZ',
'CAUCHY_STRESS2XY', 'CAUCHY_STRESS2YZ', 'CAUCHY_STRESS2XZ']



dtt = servermanager.Fetch(tt)


use composite data append


dtt


(vtkMultiBlockDataSet)0x9441c50

How do I get the raw data for 'CAUCHY_STRESS2XX'?

And since I have to fetch the data to the client side, what do I need to do
to the data that I calculated and placed in the data structure that I
created on the client side to make it available to ParaView (for example, I
want to color the Surface using the newly calculated variable).

thanks
-simon





Classification: UNCLASSIFIED
Caveats: NONE






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