# Indicating a specific number of streamlines with a threshold for their length

**URL:** https://discourse.paraview.org/t/indicating-a-specific-number-of-streamlines-with-a-threshold-for-their-length/10885
**Category:** ParaView Support
**Tags:** vtk
**Created:** [November 30, 2022, 3:51pm UTC](https://discourse.paraview.org/t/indicating-a-specific-number-of-streamlines-with-a-threshold-for-their-length/10885 "2022-11-30T15:51:07Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![Alis](https://discourse.paraview.org/letter_avatar_proxy/v4/letter/a/ed655f/32.png) [@Alis](https://discourse.paraview.org/u/Alis)
#### Post date: [November 30, 2022, 3:51pm UTC](https://discourse.paraview.org/t/indicating-a-specific-number-of-streamlines-with-a-threshold-for-their-length/10885/1 "2022-11-30T15:51:07Z")

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Hi all,

I’m trying to find the length of streamlines in my domain. I want to indicate a specific number of streamlines, whose length is bigger than a value. I also need that these streamlines to be equally distributed in the domain. I know that I can find their length with Cell Size filter and then set a threshold for them. But instead of using resolution in streamlines, I need only a fixed number of streamlines (e.g. 1000 lines) that are bigger than a value and are distributed equally in the domain. Thanks in advance for any help.