# Vorticity Contour problem
**URL:** https://discourse.paraview.org/t/vorticity-contour-problem/10360
**Category:** ParaView Support
**Created:** [September 20, 2022, 10:36am UTC](https://discourse.paraview.org/t/vorticity-contour-problem/10360 "2022-09-20T10:36:35Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@sopoyoon](https://discourse.paraview.org/u/sopoyoon)
#### Post date: [September 20, 2022, 10:36am UTC](https://discourse.paraview.org/t/vorticity-contour-problem/10360/1 "2022-09-20T10:36:35Z")
Hello, everyone!
I have a vti file where 2D vorticity data in.
[2\_9683.vti](https://discourse.paraview.org/uploads/short-url/bveXLJb7aHnV1Kf9ndaZ3b2i5iR.vti) (770.3 KB)
When I try to plot the vorticity contour using `contour`, I was not able to select vorticity data.
How do I plot the contours like this way?
Thank you in advance!
Best regards,
Sopo
---
### Author:  [@Kenneth\_Moreland](https://discourse.paraview.org/u/Kenneth_Moreland)
#### Post date: [September 20, 2022, 12:57pm UTC](https://discourse.paraview.org/t/vorticity-contour-problem/10360/2 "2022-09-20T12:57:38Z")
The `Vorticity` in your data is cell data. `Contour` can only run on point data. Use the `Cell Data to Point Data` filter to convert the vorticity to point data, and then the contour will work.
---
### Author:  [@sopoyoon](https://discourse.paraview.org/u/sopoyoon)
#### Post date: [September 21, 2022, 7:21am UTC](https://discourse.paraview.org/t/vorticity-contour-problem/10360/3 "2022-09-21T07:21:17Z")
Dear Kenneth,
Thank you for getting back to me!
I can plot the contour thanks to you. 😀
