# Extracting plot over line data for all time steps

**URL:** https://discourse.paraview.org/t/extracting-plot-over-line-data-for-all-time-steps/10850
**Category:** ParaView Support
**Created:** [November 24, 2022, 9:13am UTC](https://discourse.paraview.org/t/extracting-plot-over-line-data-for-all-time-steps/10850 "2022-11-24T09:13:14Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![hr\_nt](https://discourse.paraview.org/user_avatar/discourse.paraview.org/hr_nt/32/11487_2.png) [@hr\_nt](https://discourse.paraview.org/u/hr_nt)
#### Post date: [November 24, 2022, 9:13am UTC](https://discourse.paraview.org/t/extracting-plot-over-line-data-for-all-time-steps/10850/1 "2022-11-24T09:13:14Z")

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Hello,

I have conducted a multiphase simulation using openfoam. I am trying to extract the volume fraction across a channel (using plot over line). I now want to repeat the same for all time steps and save the data in a matrix where the rows represent the variable in space and the columns represent the variables in time so that I can later process it using matlab or python.