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#1 |
New Member
Join Date: Oct 2016
Posts: 10
Rep Power: 8 ![]() |
Hello everybody,
I'm relatively new to ParaView and I got a -probably simple- question: I have a 3D-object including a scalar and a vector for velocity. I was already able to plot streamlines through a 2D-inlet (instead just seeding over a line). But I only want to "see" the streamlines in the voxels where the scalar is larger than 0 (this scalar can take values between 0 and 1). I tried to use "Extract cells by region" but then streamlines which go farer then my specified area disappear. I do not want to let them disappear, I want them to be cut off as soon as they reach a voxel with scalar==0. I hope this is possible, cause now ParaView plots streamlines where there is actually no flow. Thanks for help everbody ![]() (Btw I'm new here, thus, I hope I fullfiled all rules with this post) |
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#2 |
Senior Member
Join Date: Aug 2013
Posts: 407
Rep Power: 15 ![]() |
Hi,
Have you tried the "Threshold" filter in Paraview? Cheers, Antimony |
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#3 |
New Member
Join Date: Oct 2016
Posts: 10
Rep Power: 8 ![]() |
Hey,
I don't know if someone has the same problem but I found a solution which is so far appropriate for my purposes: I apply the "Treshold"-filter on the "Stream Tracer with Custom Source" and define the min. (1e-4) and max. (1) value for the scalar. Maybe I can help someone with this solution. |
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#4 |
New Member
Join Date: Oct 2016
Posts: 10
Rep Power: 8 ![]() |
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#5 |
Member
Vishnu
Join Date: May 2019
Location: Tamilnadu, India
Posts: 55
Rep Power: 6 ![]() |
Hi all,
How to reduce the number of streamlines in paraview ? if i change or reduce the ''maximum steps 2000'', there is formation of incompletion in my streamlines . Thank you in advance Vishsel |
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#6 |
New Member
Join Date: Jan 2015
Posts: 7
Rep Power: 10 ![]() |
If you're using a line to seed the streamlined, you want to change the resolution term, not max steps.
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#7 |
Member
Vishnu
Join Date: May 2019
Location: Tamilnadu, India
Posts: 55
Rep Power: 6 ![]() |
Hi momentumv,
Thank you for your reply. I am using StreamTracerWithCustomSource to generate the streamlines. So where i could find the option to reduce the no. of streamlines in StreamTracerWithCustomSource ? Thank you in advance Vishsel |
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#8 |
New Member
Join Date: Jan 2015
Posts: 7
Rep Power: 10 ![]() |
The custom source provides points that are the seed for the streamlines. To reduce the number of streamlines, reduce the number of points that you have in the custom source.
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limit, streamline |
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