# Coordination number?

**URL:** https://discourse.paraview.org/t/coordination-number/12193
**Category:** ParaView Support
**Tags:** vtk
**Created:** [May 31, 2023, 10:21am UTC](https://discourse.paraview.org/t/coordination-number/12193 "2023-05-31T10:21:47Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![bunny](https://discourse.paraview.org/letter_avatar_proxy/v4/letter/b/3d9bf3/32.png) [@bunny](https://discourse.paraview.org/u/bunny)
#### Post date: [May 31, 2023, 10:21am UTC](https://discourse.paraview.org/t/coordination-number/12193/1 "2023-05-31T10:21:47Z")

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Hi,

I am trying to get the coordination number (CN) for my DEM file. is there a way to output this using paraview? Coordination is the number of contacts for each particle.

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### Author: ![mwestphal](https://discourse.paraview.org/user_avatar/discourse.paraview.org/mwestphal/32/17_2.png) [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [May 31, 2023, 11:10am UTC](https://discourse.paraview.org/t/coordination-number/12193/2 "2023-05-31T11:10:39Z")

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Hi @bunny

Is this information supposed to be present in your file already or do you want to compute it ?

In any case, please share your data.