Plotting stagnation point over time
 

Hello all,

I have a fairly easy one that I'm looking for a bit of help with.

I'm doing a flow over a cube problem and I would like to plot the stagnation point behind the wake as a function of time in paraview. I'm not sure how I'd implement this but I basically I want to say "Plot the position of the highest pressure along this line as a function of time." I want to see how the recirculation bubble behind my object changes over time.

Thanks
J