[Paraview] Export of time-dependent data

[Martin Vymazal]

Hi Utkarsh,

  let's say that my data set contains quantities a0,a1,a2,a3. I need to compute
quantity bn by creating a (long) pipeline with a series of  
intermediate steps, where:

b1 = function(a0,a1,a2,a3)
b2 = function(b1,...)
b3 = function(b2,b1,...)
    ...

bn = function(b_n-1,...)

Reading only those quantities (bn) that I wish to plot is exactly what  
I would like to do. Unfortunately, they're not contained in the  
original file and I need to create this extra data set first. The  
question is: can paraview generate such an output file which stores  
these quantities? I prefer to wait at the beginning and let paraview  
write a new dataset instead of waiting every time I click and the  
pipeline is re-executed.

  Best regards,

    Martin



Quoting Utkarsh Ayachit <utkarsh.ayachit at kitware.com>:

> Martin,
>
> You should also be able to choose only the quantities you want to load
> from the reader panel itself. Doesn't that help with performance. If
> not, I don't think saving out new file with fewer quantities would
> make much different either.
>
> Utkarsh
>
> On Sun, Mar 13, 2011 at 7:26 AM, Martin Vymazal
> <martin.vymazal at vki.ac.be> wrote:
>> Hello,
>>
>>  I have rather a large output (xdmf format) of an unsteady CFD simulation. I
>> need to compute some other quantities in the computational domain which are
>> a function of the variables stored in the original dataset. I created a
>> pipeline, which works fine but is a bit slow to execute every time I want to
>> obtain a plot for a new time step.
>>  Is it possible to select only certain quantities from my pipeline and save
>> them for all time steps (along with the mesh itself) in a new hdf/xdmf file?
>> Thank you.
>>
>>  Best regards,
>>
>>  Martin Vymazal
>>
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