[Paraview] Point data to 2d plane data

[Moreland, Kenneth]

Teng,

When you saved your data to a csv file, you lost all cell information. If you want to look at cells in your data, you will have to recreate them.

The easiest way to create cells is probably to use the Delaunay 2D filter. Note, however, that the cells created will not be the same as in your original vtk file.

If you want to keep your original cells, you will have to save them in a file that supports cell topology. One way to do that is when you save your csv file, also save a vtk file of the same data. Then, after you have run Matlab, load both the csv file and the vtk file. Do the TableToPoints on the csv data as before. Then use append attributes to copy the csv data to the vtk cell data.

-Ken

Sent from my iPad

On Jul 26, 2017, at 12:41 AM, Li, Teng <tengli2 at illinois.edu<mailto:tengli2 at illinois.edu>> wrote:

Dear Paraview developers,

I have a question about how to convert point data (vtk file) to 2d plane data. Actually, originally, I was working with vtk file. Then I use the extract selection to select some cells in the original model. In order to process the data of the selected cells, I save the data as the csv file. Then I use Matlab to do some calculation on the data in the csv file. After that, I open the modified csv file by using Paraview directly. And now, I can only see this csv file in spreadsheet view. After searching some online information, I use TabletoPoint to convert the data to point data. However, I still want to view them as the 2d cell. So I use point interpolation to try to convert the points data to 2d plane cell data. However, It doesn't work.

So my question is, how to show the data value in the space between different 2d points data by using point interpolation? Or is there any way that I can process the 2d cell plane data without saving it as the csv file?

Best,
Teng Li


Teng Li

Master Candidate in Structures

Department of Civil and Environmental Engineering

University of Illinois at Urbana-Champaign

205 North Mathews Ave, Urbana, IL. 61801

Phone:(217)8196210, Email: tengli2 at illinois.edu<mailto:tengli2 at illinois.edu>



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