🚀 go-pugleaf

rlb@lavalite.asd.sgi.com (Robert Brown) writes:

>In article <1992Aug17.222132.14484@ccu1.aukuni.ac.nz>, sands@ccu1.aukuni.ac.nz (Greg Sands) writes:
>|> 
>|> Can anyone suggest a way to
>|>   i) preserve the exact viewpoint/direction/zoom etc of the Render module

>Version 1 Explorer provides no way to do this. A general solution won't be available
>in V2.0, either.  It is a difficult problem, but we're addressing it for post-2.0
>release.

If its something you're working on, maybe you'd also like to try to include
in this a way of describing a time sequence to follow, as well as a static
view.  For example, move (in say spherical polar coords) through theta=0
to 2pi in 20 even steps, keeping lambda and mu constant, looking always at 
a point (0,0,0), and zooming in by 1.1x each time step.  OK thats rather 
complex, but you get the general idea.  This would let you view different 
data sets in the same way each time.  Very useful for creating an animation
while sweeping around an object.  But describing a static view is a very 
useful start.  If we are doing a lot of this sort of thing, do you know if
it would be more worthwhile to program our own routines using the Inventor
toolkit?

>|>  ii) allow more files to be created sequentially

>Your description sounds like a memory leak or just hanging on to too many
>images.  You might try a larger arena, using the "-arenasize" argument to
>explorer or statement in your .explorerrc file.

>|> and/or
>|> iii) more efficiently create an animation sequence.

>Version 2 will help here.  Meanwhile, perhaps using WriteLat to save images
>would help -- it generates unique file names each time another lattice
>arrives.

I hadn't seen that it creates its own filenames.  Thanks.  Although this
would write it as a lattice rather than a .rgb file, so I'd have to convert
it again later.  By the way, could WriteImg have the option of writing RLE
.rgb files - seeing as the programming interface is transparent, this should 
be easy enough.

>---------------
>Robert L. Brown
>Manager, IRIS Explorer
>Silicon Graphics, Inc.


Thanks for the help.

Greg.
-- 
Greg Sands.                           |  Department of Engineering Science
-----------                           |  University of Auckland           
g.sands@aukuni.ac.nz                  |  New Zealand.