[Paraview] Selection of points
Eric E. Monson
emonson at cs.duke.edu
Mon Aug 4 09:47:46 EDT 2008
Hey John,
I'm trying to make sure I understand your question -- would your
problem be solved if your particles had a Global ID associated with
them, which was a unique "tag" that didn't change over time? (Then,
the selection type could be "global id" and shouldn't reorder when
time is stepped back to zero.)
I've had to add a Global ID assignment to my version of the Xdmf
reader so that my animated particle data could be selected and have
attributes plotted over time, etc.
Talk to you later,
-Eric
------------------------------------------------------
Eric E Monson
Duke Visualization Technology Group
On Jul 22, 2008, at 3:46 AM, John Biddiscombe wrote:
> I have a dataset which consists of animating particles. I can select
> a region of space and get the Id's of certain particles. I now wish
> to pass this list back into my Pathline filter so that only the
> particles selected are drawn with pathlines. However, when I hit the
> back button for the animation to return to time zero, the selected
> particles now change. I can change the selection type to Id - which
> is great because I can use this information directly in the pathline
> filter to pick out the lines, but again - when I change time step,
> the particles are re-ordered and my information is lost.
>
> I'd like to copy the active selection - and then fix it - so it is
> now disconnected from the pipeline and becomes a static piece of
> data which does noit change with time. If I save the selction to
> disk, I can load it and use it as I'd like to. Is there a way of
> copying the active selection - and disconnecting it from the
> pipeline so that I can skip the disk save/load stage and pass the
> selection directly to my pathline filter?
>
> thanks
>
> JB
>
> --
> John Biddiscombe, email:biddisco @ cscs.ch
> http://www.cscs.ch/about/BJohn.php
> CSCS, Swiss National Supercomputing Centre | Tel: +41 (91) 610.82.07
> Via Cantonale, 6928 Manno, Switzerland | Fax: +41 (91) 610.82.82
>
>
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