[Paraview] particle trajectory

[Berk Geveci]

We just started working on it. We don't have a clear plan of attack
yet. I'll try to keep you posted.

On 3/9/06, Kent Eschenberg <eschenbe at psc.edu> wrote:
> Hi Thierry,
>
> Good question; I've wanted to do something similiar with time-varying
> velocities but feel we should both wait, if possible, for reasons I'll
> mention below.
>
> There might be some confusion about the words. Here's a web page from
> Purdue that seems to do a good job of explaining streamlines, pathlines and
> streaklines (note: I don't see the Java applet that they mention).
>
>    https://widget.ecn.purdue.edu/~meapplet/java/flowvis/Index.html
>
> With a steady flow all are the same. The fact that you have new velocities
> at every time step indicates that you are looking at an unsteady flow where
> the 3 methods differ.
>
> ParaView currently only supports streamlines which are not appropriate for
> unsteady flow. At best, you'd need to be very careful how you interpret
> what you see.
>
> Time-varying velocity information could be viewed with a pathlines filter.
> The only little problem is that the VTK pipeline currently works with
> information from only one time step.
>
> However, I understand that there is a group of VTK/ParaView developers that
> are working on a general facility for time-varying data. In addition to
> pathlines there are, I suspect, a number of other methods that need data
> from more than one time step.
>
> If you are reading this note and are a member of this group, working on
> time-varying data, I would really appreciate you jumping in to let us all
> know the status of that effort. Can we expect to see pathlines soon? Do you
> need help?
>
> Kent
> Pittsburgh Supercomputing Center
>
> --On Thursday, March 09, 2006 03:29:54 PM +0100 Thierry Dubuis
> <tdubuis at scconsultants.com> wrote:
>
> > Hello,
> >
> > I would like if it's possible to follow the particles trajectories in
> > Paraview ?
> > I can have access to
> > 1. velocity vectors on several time step (I can use to see steamlines)
> > 2. a file with the particles positions per time step.
> >
> > Can I load in Paraview, my file (2.) to see my particles along the time
> > step ?
> >
> > Thanks for your help.
> >
> > --
> > Thierry Dubuis
> > --------------------------------
> > Sciences & Computers Consultants
> > Tel : 04 77 49 75 84
> > Std : 04 77 49 75 80
> > Fax : 04 77 33 68 04
>
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