Re: tmp gets full when plotting many images

[Daniel J Sebald]

Daniel J Sebald wrote:
> John W. Eaton wrote:
>
> > On 26-Mar-2007, Søren Hauberg wrote:
> >
> > |    When plotting many images (i.e. showing a movie) I run out of 
> > disc | space, because the plotting system doesn't seem to be cleaning 
> > up after | itself as long as Octave still running. Can we make the 
> > system delete | tmp files when they are no longer needed?
> >
> > We eliminated tmp files for lines and surfaces.  I don't know of a way
> > to eliminate them for images.
>
>
> Well, there is nothing unique really about image data in terms of 
> transfer.  I just assumed that sending large images as ASCII data 
> through a pipe isn't efficient.  So there is that possible change that 
> would solve the persistent temp files issue.
>
> This could be improved perhaps by utilizing the fact that data through 
> the pipe can now also be binary.  (I doubt there are any pipes out there 
> that restrict data to 7 bits, ASCII, rather than 8 bits.)  Let me know 
> if you want to try this approach.

Oh yeah, there is an example of this in the gnuplot demos.  It is titled:

set title "Binary data specified at the command line, intended for use through 
pipe"

in the file image2.dem:

http://gnuplot.sourceforge.net/demo_4.3/image2.html

(I would copy the whole thing, but because there are 56 bytes of binary data, I 
can't send it through email.)

Dan