Display of Contour from a 2D CSV File

ParaView Support
1

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 (1.5 MB)

csv
csv1357×909 167 KB

plt
plt1357×909 115 KB

2

Hi @wqGeng

You should be able to use Delaunay2D filter to recreate cells.

Best,

3

Hi Mathieu

Thanks for your prompt reply! I have used Delyunary 2D after Table to Points, but ParaView crashed.

Regards,
Weiqun

4

It working fine with ParaView 5.13.1 Linux binary release:

image
image1505×1095 83.1 KB

Make sure to use “Best Fitting” projection plane mode.

5

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.

6

By clicking here:

a
a897×404 42 KB

7

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?

OpenGL_err
OpenGL_err1155×802 91.2 KB

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 (3.1 MB)

8

However, the Windows version crashed six times and just one time worked.

Ill need to try on Windows.

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.

9

I use CentOS Linux release 7.9.2009.

The geometry is not visible, but the file size is more than 3 MBytes.

10

Make sure to install your GPU drivers then.

11

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?
image

12

Download the version without MPI in the name.

13

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?

14

Please share your data and steps to reproduce.

Is there unit vector for axial, radial and tangential direction?

Im afraid not

15

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
    image.
  3. Filter > Denaunay 2D, ParaView crashes at 16%.
    compl-1-ca-350_v241.csv (1.5 MB)