Re: gset term & octave

[mbn]

This sort of "fixed" my problem:

  gset term x11
  gset output "/dev/null"

....

  gset term png;
  eval(sprintf('gset output \"%s.png\"',file_name_prefix));

The garbage is not shown anymore.

However, is annoying to specify X11 at the begining because I get a window
with a plot that appears and dissapears quickly before I am able to set the
terminal to png and save the plot. 

Can somebody suggest a way to do this without the X11 window being shown
with the plot?

Thanks in advance.


P.S. I also tried without setting the terminal to X11 and priting directly
to the PNG but I see in the resulting .png only one of the series I try to
plot and not the others (although after looking at the size of the file I
think they are somehow there). Why could this be happening?




mbn wrote:
> 
> Hello
> 
> I am trying to generate png image from a plot in Octave. 
> 
> My environment is the following (Linux):
> 
> ===========================
> $ octave -v
> GNU Octave, version 2.1.57
> 
> $ gnuplot --version
> gnuplot 4.0 patchlevel 0
> 
> ===========================
> 
> 
> When I use gset term, I get random garbage (with or without ; at the end
> is the same):
> 
> 
> ===========================
> octave:1> gset term png
> PNG
> 
> IHDR,Vs[aO`)PLTE   @@nn@@nn  @@ @ 
> @@`@@address@hidden@0``@@@@address@hidden@@@` @address@hidden@ ` ```    
> ...
> 
> 
> octave:2> gset output 'myfile.png'
> ===========================
> 
> At the end, the image is generated but why am I getting all that garbage?
> I have tried that in several Linux boxes (RedHat) and I always receive the
> same error.
> 
> How can I solve that?
> 
> Thanks in advance
> 
> 

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