| Re: Xinteranimate "Unable to create pixmap" error [message #17628] |
Fri, 05 November 1999 00:00  |
davidf
Messages: 2866
Registered: September 1996
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Senior Member |
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Joe Means (means@fsl.orst.edu) writes:
> Here is more info on this problem. The last two times I ran it, in response
> to David's comments, it hung on 106 and 107 frames. Regarding memory, there
> is 1Gb of system RAM and 1Gb of swapfile [virtual memory] space. Performance
> monitor showed that there was still 630Mb free RAM and 910Mb free swapfile
> space when it choked, and it had used up ca. 3000Mb of RAM when running. This
> works when I try to create smaller animations. Interestingly, when, in the
> IDL Devel Env., I hit the Reset button [includes Heap_GC, /Verbose] this
> recovered about half of the memory drawdown from the run, ca. 160Mb. Killing
> IDE recovered the rest, ca., 140Mb.
>
> I'd sure like to find that it is just a programming error.
>
> Can I program around this by specifically putting the pixmaps in system RAM
> and animating from there by loading them into the IDL window just as they are
> needed?
I'll see if I can get more specific information about this,
but I have a feeling we are running up against some kind
of limitation in either the graphics driver or NT itself.
I tried creating 700 by 400 windows. With my graphics
driver with 32MB RAM and 1GB swapfile, I was able to
create 150 pixmap windows before I got the "unable
to create pixmap window" message.
Since I don't have any fix, here are a couple of
suggestions. First, I presume you have thought
about smaller windows and rejected that. You
appear to have a fairly robust machine there, Joe.
I presume you have Gigs and Gigs of disk space. :-)
So I think what I would do is write these screen
dumps out to a file. Then I would do the animation
from the file using the Associated Variable method
of reading a single image from the file. Some
experiments last night on my machine (not as nice
as yours unfortunately) leads me to believe that
this can produce an animation with acceptable
results.
I think I would start with my XMOVIE program and
modify it to read from an associated variable rather
from memory if I was tackling this job.
http://www.dfanning.com/programs/xmovie.pro
Cheers,
David
--
David Fanning, Ph.D.
Fanning Software Consulting
Phone: 970-221-0438 E-Mail: davidf@dfanning.com
Coyote's Guide to IDL Programming: http://www.dfanning.com/
Toll-Free IDL Book Orders: 1-888-461-0155
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