2D contour from csv with values at array nodes

ParaView Support
1

Dear guys,

I am new in using Paraview. I want to contour 2D array data in CSV format (the attached result_test.csv (2.5 KB) ). The array is 10x10 size and each node of the array has its value. The contour will be based on these values. I have seen that there is a solution about the CSV with x,y coordinates, but in my CSV file, I just have the array and values. Could anyone can help me, please?

Thank you so much.

Sincerely.

2

Hi guys, or are there any other methods to visulise and contour the array value? Thank you so much.

3

Your data is not correctly formated to be read into paraview.

it should be like that:

val00
val01
val01
 ...
val09
val10
val11
...
val98
val99
4

Hi Mathieu,

Thank you so much for your quick reply and help.

Yeah, because the values in my data are at the grid nodes without x,y,z coordinates. I can transfer it with x,y coordinates but it is time cost as I have so many files like that, so I am trying to contour without modifying the format How about .vtk format? If there is no possible, I will change the format as yours manually.

Best wishes

5

There is no way to read your data as it is into ParaView. Can you control your output in any way ?

Instead of doing it manually, you should be able to write a sed command to take care of it.

6

Hi Thank you so much. I have written a sed command to transform the output and got what I need by using the filters Table to Points and Delaunay2D . Do you think using vtk is better than csv so that I don’t need to use filters each time.

7

Yes it would be better.

8

Thank you.