# Setting up Non-orthogonal coordinates

**URL:** https://discourse.paraview.org/t/setting-up-non-orthogonal-coordinates/17174
**Category:** ParaView Support
**Created:** [September 9, 2025, 5:13pm UTC](https://discourse.paraview.org/t/setting-up-non-orthogonal-coordinates/17174 "2025-09-09T17:13:52Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![emelbakry](https://discourse.paraview.org/letter_avatar_proxy/v4/letter/e/57b2e6/32.png) [@emelbakry](https://discourse.paraview.org/u/emelbakry)
#### Post date: [September 9, 2025, 5:13pm UTC](https://discourse.paraview.org/t/setting-up-non-orthogonal-coordinates/17174/1 "2025-09-09T17:13:52Z")

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I am new on Paraview software. I have tried to go through the paraview tutorial, but yet I did not find a straight-forward answers.  
I have exported a Lab-DCT dataset from a dream.3d software, as XDMF file. I have then opened the latter file in Paraview software to do some simple tasks, which are:

1- convert the visualized coordinates to be three non orthogonal coordinates?

2- pick 3 points in space and calculate the plane (in the new coordinates)  
Thanks

Eslam