[Paraview] Selection of points

[Eric E. Monson]

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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