Stream Lines too short / Tetrahedralize doesnt seem to work

ParaView Support
1

Hi there, I’m trying to produce some magnetic field lines, similar to the ones on this picture:

lines_wanted

Obviously I cant really achieve such a wholesome picture:P but for starters I want to achieve the same lenght on magnetic lines, and I think I have the same kind of data (Basically the same simulation code: bhac).

Now, here is the list of Filters. (Ignore the Clip 1, its deactivated whatesoever). I show what I properties added to stream_tracer. But as you can see the lines are “cut” in short way.

I have seen somewhere that Adding Tetrahedralize filter fixes the problem, but If I add it, it crushes.

magn_lines
magn_lines1530×868 101 KB

Even if I add it “manually” on python script, and run it on server. I still get some kind of bad results, although im not completely sure if the steamline is cut or going “downside” of the disk.

301
3011920×1080 203 KB

Maybe you have some kind of tip to achieve streamlines like the 1st picture?

2

Can you share your .vtu file ?

3

Is there a platform to upload the file? You guys use any certain website? (because its large enough, so It will take take, not to choose the wrong upload platform)

4

You can use wetransfer

5

Sorry for the delay. I uploaded a shortcut (0.8 GB) cuz the original is >2 GB.

Thank you for your time in advance!

6

Have I done something wrong with the upload?

7

Your dataset has many topological issues has you can see here:

image
image1091×559 59.7 KB

You can fix some of them using CleanToGrid filter, but you should fix your mesh generation.

8

Whats the problem with that? I will try that filter btw

9

Basically, your cells are not considered to be neighbour as they do not have points in common.

10

But I use Cell to Point Data filter before Tetra. Isnt that efficient?

11

unrelated. your dataset has topological errors.