# EMST based on Delaunay3D

**URL:** https://discourse.vtk.org/t/emst-based-on-delaunay3d/6942
**Category:** Support
**Created:** [October 22, 2021, 2:23pm UTC](https://discourse.vtk.org/t/emst-based-on-delaunay3d/6942 "2021-10-22T14:23:51Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![Lina](https://discourse.vtk.org/letter_avatar_proxy/v4/letter/l/bb73d2/32.png) [@Lina](https://discourse.vtk.org/u/Lina)
#### Post date: [October 22, 2021, 2:23pm UTC](https://discourse.vtk.org/t/emst-based-on-delaunay3d/6942/1 "2021-10-22T14:23:51Z")

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Hello, I would like to use the Delaunay3D filter to build a euclidian minimum spanning tree. I have a doubt about the parameters to use to have a correct result. Should I even use the 3D? if yes which alpha value I should use and how would it affect the result? Thank you.