# Does VTK have any support to order triangles on a mesh?

**URL:** https://discourse.vtk.org/t/does-vtk-have-any-support-to-order-triangles-on-a-mesh/2922
**Category:** Support
**Created:** [March 31, 2020, 5:04am UTC](https://discourse.vtk.org/t/does-vtk-have-any-support-to-order-triangles-on-a-mesh/2922 "2020-03-31T05:04:02Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![tdchen](https://discourse.vtk.org/letter_avatar_proxy/v4/letter/t/858c86/32.png) [@tdchen](https://discourse.vtk.org/u/tdchen)
#### Post date: [March 31, 2020, 5:04am UTC](https://discourse.vtk.org/t/does-vtk-have-any-support-to-order-triangles-on-a-mesh/2922/1 "2020-03-31T05:04:02Z")

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Hi vtkers.  
I need to make all triangles on a mesh having the same orientation, and even more to get the border of it.  
Does VTK have any support to this?  
Thank you in advance.