# ExtractSurface: does resulting mesh fit the points exactly?

**URL:** https://discourse.vtk.org/t/extractsurface-does-resulting-mesh-fit-the-points-exactly/4336
**Category:** Support
**Created:** [October 2, 2020, 6:42am UTC](https://discourse.vtk.org/t/extractsurface-does-resulting-mesh-fit-the-points-exactly/4336 "2020-10-02T06:42:09Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![marcSteiner](https://discourse.vtk.org/letter_avatar_proxy/v4/letter/m/b782af/32.png) [@marcSteiner](https://discourse.vtk.org/u/marcSteiner)
#### Post date: [October 2, 2020, 6:42am UTC](https://discourse.vtk.org/t/extractsurface-does-resulting-mesh-fit-the-points-exactly/4336/1 "2020-10-02T06:42:09Z")

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Hi there,

I have a point set I wish to triangulate. Do the VTK methods {ExtractSurface, Poisson, Powercrust} create meshes that go exactly through the input points? Also, my point set has a rather complex topology: it resembles a half-wormhole / funnel with top plate. Will VTK be able to create a nice mesh for that?

Thanks,  
Marc