I'm not sure I understand your use case entirely but I think what you want
is to use the Threshold filter. You may want to use it on the 3D object or
maybe on just the streamlines.
On Fri, Oct 14, 2016 at 2:15 AM, Ge Heim via ParaView <firstname.lastname@example.org
> 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
> 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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