[Paraview] Cut plane average velocity over time

[Favre Jean]

>> I would like to get an average over an entire cut plane (over time).

David

This sounds like a perfect case for a Python Programmable Filter, looping over timesteps, accumulating data, doing the average, and setting it as a new field. Here is a script I have tested on a single block of data with multiple timesteps.

There is an init phase, to get the number of timesteps, their values (from upstream), and the first dataset at the 0-th timestep.
There is an accumulate phase, where the filter pulls all timesteps, adding to the already existing numpy array.
There is a finish phase, where we do the average and assign it to a new field.

I am doing it for Pressure, you'll have to adapt it to your fieldnames and block structures.

-----------------
Jean M. Favre
Swiss National Supercomputing Center
CH-6900 Lugano
Switzerland
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