[Paraview] Selection of points

[John Biddiscombe]

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