# Display of Contour from a 2D CSV File
**URL:** https://discourse.paraview.org/t/display-of-contour-from-a-2d-csv-file/15823
**Category:** ParaView Support
**Created:** [December 2, 2024, 12:41pm UTC](https://discourse.paraview.org/t/display-of-contour-from-a-2d-csv-file/15823 "2024-12-02T12:41:23Z")
**Posts on this page:** 15
**Page:** 1
### Author:  [@wqGeng](https://discourse.paraview.org/u/wqGeng)
#### Post date: [December 2, 2024, 12:41pm UTC](https://discourse.paraview.org/t/display-of-contour-from-a-2d-csv-file/15823/1 "2024-12-02T12:41:23Z")
I write 2D CSV files from Fluent out to create animation videos in ParaView. I convert the CSV files using **Table to Points** and then see just points, not interpolated contours. In case I save the 2D data in Tecplot format (PLT), the automatically interpolated contour appears. What should I do? Many thanks for your help!
[compl-1-ca-350\_v192.txt](https://discourse.paraview.org/uploads/short-url/fMzED5II6GgfuZCyvgGUoshOJXJ.txt) (1.5 MB)
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### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [December 2, 2024, 12:52pm UTC](https://discourse.paraview.org/t/display-of-contour-from-a-2d-csv-file/15823/2 "2024-12-02T12:52:38Z")
Hi @wqGeng
You should be able to use Delaunay2D filter to recreate cells.
Best,
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### Author:  [@wqGeng](https://discourse.paraview.org/u/wqGeng)
#### Post date: [December 2, 2024, 12:56pm UTC](https://discourse.paraview.org/t/display-of-contour-from-a-2d-csv-file/15823/3 "2024-12-02T12:56:27Z")
Hi Mathieu
Thanks for your prompt reply! I have used Delyunary 2D after Table to Points, but ParaView crashed.
Regards,
Weiqun
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### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [December 2, 2024, 4:20pm UTC](https://discourse.paraview.org/t/display-of-contour-from-a-2d-csv-file/15823/4 "2024-12-02T16:20:25Z")
It working fine with ParaView 5.13.1 Linux binary release:
Make sure to use “Best Fitting” projection plane mode.
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### Author:  [@wqGeng](https://discourse.paraview.org/u/wqGeng)
#### Post date: [December 2, 2024, 4:29pm UTC](https://discourse.paraview.org/t/display-of-contour-from-a-2d-csv-file/15823/5 "2024-12-02T16:29:47Z")
I am using ParaView 5.13.1 on Windows 10. Where can I turn “Best Fitting” projection plane mode on? I’ll try to use Linux version.
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### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [December 2, 2024, 4:41pm UTC](https://discourse.paraview.org/t/display-of-contour-from-a-2d-csv-file/15823/6 "2024-12-02T16:41:54Z")
By clicking here:
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### Author:  [@wqGeng](https://discourse.paraview.org/u/wqGeng)
#### Post date: [December 6, 2024, 2:06pm UTC](https://discourse.paraview.org/t/display-of-contour-from-a-2d-csv-file/15823/7 "2024-12-06T14:06:11Z")
Once Delyunary 2D worked on Windows. I could get the interpolated contour as you got. However, the Windows version crashed six times and just one time worked.
After the Linux version installed I have to update openGL, see the error message below. Do you know where I can download openGL for ParaView?
I have a Tecplot file written by Fluent. I can read it into ParaView without any error messages, but I don’t see the geometry (2D contour). Could you try it? Many thanks!
[comp-y=0.plt|attachment](https://discourse.paraview.org/uploads/short-url/obuF1AVlrqRqCPUBFnB0lli2QNu.plt) (3.1 MB)
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### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [December 6, 2024, 2:56pm UTC](https://discourse.paraview.org/t/display-of-contour-from-a-2d-csv-file/15823/8 "2024-12-06T14:56:40Z")
> However, the Windows version crashed six times and just one time worked.
Ill need to try on Windows.
> [@wqGeng](#):
>
> Do you know where I can download openGL for ParaView?
Are you using ParaView in WSL ?
> I don’t see the geometry (2D contour). Could you try it? Many thanks!
This data is empty, no points.
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### Author:  [@wqGeng](https://discourse.paraview.org/u/wqGeng)
#### Post date: [December 6, 2024, 3:59pm UTC](https://discourse.paraview.org/t/display-of-contour-from-a-2d-csv-file/15823/9 "2024-12-06T15:59:32Z")
I use CentOS Linux release 7.9.2009.
The geometry is not visible, but the file size is more than 3 MBytes.
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### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [December 6, 2024, 4:07pm UTC](https://discourse.paraview.org/t/display-of-contour-from-a-2d-csv-file/15823/10 "2024-12-06T16:07:47Z")
> [@wqGeng](#):
>
> I use CentOS Linux release 7.9.2009.
Make sure to install your GPU drivers then.
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### Author:  [@wqGeng](https://discourse.paraview.org/u/wqGeng)
#### Post date: [December 12, 2024, 12:00pm UTC](https://discourse.paraview.org/t/display-of-contour-from-a-2d-csv-file/15823/11 "2024-12-12T12:00:36Z")
CentOS 7 is not anymore supported. I’ll install RedHat with our IT expert. It takes time.
Previously, I installed ParaView-5.13.1-Windows-Python3.10-msvc2017-AMD64.msi on Windows 10 and had a problem with filter Delaunay 2D. Today I install ParaView-5.13.1-MPI-Windows-Python3.10-msvc2017-AMD64.msi on Windows 10 and get an error message “MPI\_Win\_lock\_all was not found in the DLL C:\Program Files\ParaView 5.13.1\bin\adios2\_core\_mpi.dll.” Are the two installer for Windows 11?
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### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [December 12, 2024, 4:38pm UTC](https://discourse.paraview.org/t/display-of-contour-from-a-2d-csv-file/15823/12 "2024-12-12T16:38:39Z")
Download the version without MPI in the name.
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### Author:  [@wqGeng](https://discourse.paraview.org/u/wqGeng)
#### Post date: [December 13, 2024, 3:28pm UTC](https://discourse.paraview.org/t/display-of-contour-from-a-2d-csv-file/15823/13 "2024-12-13T15:28:25Z")
The non-MPI version works well on Windows 10 except filter Delaunay 2D. Now I export CGNS format and it works well in ParaView to plot contour and vector pictures. Many thanks for your support!
I have another question about 2D velocity vector (Vax and Vtan) on a cylindrical surface. iHat, jHat and kHat are cooresponding to X-, Y- and Z-coordinate. Is there unit vector for axial, radial and tangential direction?
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### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [December 16, 2024, 8:33am UTC](https://discourse.paraview.org/t/display-of-contour-from-a-2d-csv-file/15823/14 "2024-12-16T08:33:31Z")
> [@wqGeng](#):
>
> except filter Delaunay 2D
Please share your data and steps to reproduce.
> Is there unit vector for axial, radial and tangential direction?
Im afraid not
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### Author:  [@wqGeng](https://discourse.paraview.org/u/wqGeng)
#### Post date: [December 16, 2024, 8:51am UTC](https://discourse.paraview.org/t/display-of-contour-from-a-2d-csv-file/15823/15 "2024-12-16T08:51:23Z")
I read the attached CSV file on Windows 10. The steps look as follows.
1. File \> Open, choose the CSV file and then CSV Reader. No any error message.
2. Filter \> Table to Points, set X Column, Y Column and Z Coulum to x-coordinate, y-coordinate and z-coordinate respectively. Points are displayed after clicking
.
3. Filter \> Denaunay 2D, ParaView crashes at 16%.
[compl-1-ca-350\_v241.csv](https://discourse.paraview.org/uploads/short-url/xnybI53OmYd3TAABDQ0QJRJoW6k.csv) (1.5 MB)