How to Obtain the coordinates of the corresponding values on the line

Hi everyone! I get a data structure like this. The contour (pf=0) move with the growth of time.I have plot its change along a specific direction. The result is like this.And I want to know the value(pf=0)'s coordinate in every frame alongt this direction. How should I do?Thanks a lot!

It looks like you are already applying the Contour filter to the output of Plot Over Line to find the point where pf=0. You can see the coordinates of that point (as well as any other fields at that location) by viewing it in a spreadsheet view.

Thanks for your replying. I want to export the data from every frame into one file(for example .csv).Is there any way to do this?

Hi @potato

You could add an CSV extractor.