Saving pngs without plotting to screen first

[Doug Stewart]

Koen Tavernier wrote:
> Hi,
>
> I want octave to create a lot of graphs and save them to pngs. I can do 
> this without problem using the print function. Because a high number of 
> these need generating, my system slows down considerably as gnuplot is 
> drawing every plot onto the screen. I have tried to look for solutions 
> in quite a few places, but I'm not sure what exactly I should be 
> searching for. I'm sure it's something really trivial!
>
> This is the code that currently generates the graphs:
>
>   for j = 1:segment
>     subplot(2,1,1);
>     plot(phase([maxindex(j)-500:maxindex(j)+1500]));
>     subplot(2,1,2);
>     plot(unfiltered([maxindex(j)-500:maxindex(j)+1500]));
>     title = sprintf("segment%d.png", j)
>     print(title, "-dpng")
>   endfor
>
>
> Thanks in advance,
>
> Koen.
>   


octave:1> figure(1, "visible", "off");
octave:2> plot(sin(1:100));
octave:3> print -deps "/tmp/sin.eps"




	Thomas