[Paraview] Computing displacement

[Elaine Tang]

Hi,

I have a set of data with displacement point data. I want to create a new
variable that:

New_displacement (t) = displacement (t) - displacement (t=0)

Any idea on how to do that? I was trying to use calculator but I don't know
how can I specific displacement for t=0.

Also, is there any easy way in Paraview to find the maximum displacement
throughout all time steps?

Thank you!
-- 
Elaine Tang
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