Stream Tracer doesn't generate any lines from a 3D vector field

ParaView Support
1

Hello,

I’m a new user of paraview and was trying to make a streamtracer evolution of the magnetic field lines of my simulations.
I made a VTU file containing the three components of the magnetic field: Bx, By, Bz as well as the value of the vector: modb.
There is also a scalar of the density of the gas called density in the files.
I’m trying to make a 3D vector field using the components Bx, By and Bz and them connect the points in order to create some streamlines, but It’s not working.

Firstly, I create the vector field using “Python Calculator” using the function make_vector(Bx, By, Bz) , then I try to associate a stream tracer filter to it, but it doesn’t show me any line. Does anyone know what’s happening?

Also, all the arrows in Glyph 3D are pointing to the same direction, when I know for a fact that they shouldn’t be.
I’m using Paraview 5.11.0.

2

Hi @motta ,

Please share your data.

all the arrows in Glyph 3D are pointing to the same direction, when I know for a fact that they shouldn’t be.

Did you enable the orient checkbox ?

Best,

3

Hey @mwestphal!
Thanks for the reply. I just enabled the orient checkbox and the orientation thing worked :sweat_smile:! Thanks for the help! I tried to upload my data, but I think the file is too big ~166MB. I uploaded it in google drive. Here’s the link : magpoints20.vtu - Google Drive