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Re: Saving pngs without plotting to screen first

From: Thomas Weber
Subject: Re: Saving pngs without plotting to screen first
Date: Fri, 04 Jan 2008 17:41:51 +0100

Am Freitag, den 04.01.2008, 08:55 +0000 schrieb Koen Tavernier:
> 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:

figure(1, "visible", "off");
        % add this right before your code
>   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


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