From bug-request at octave dot org Sat Jul  3 07:09:38 2004
Subject: Re: empty or mostly zero bytes in gnuplot output
From: Kevin Judd <kevin at maths dot uwa dot edu dot au>
To: "Dmitri A. Sergatskov" <dmitri at unm dot edu>
Cc: bug-octave at bevo dot che dot wisc dot edu
Date: Sat, 3 Jul 2004 01:17:29 -0500



On Fri, 2 Jul 2004, Dmitri A. Sergatskov wrote:

> If you have to do it this way you need to make sure
> that automatic_replot = 0.


This doesnt entirely fix the problem.

If I print only one plot it works. If I have a script with

automatic_replot = 0;

plot(randn(1,10))
gset output 'test1.eps'
gset terminal postscript eps
replot
gset terminal x11

plot(randn(1,10))
gset output 'test2.eps'
gset terminal postscript eps
replot
gset terminal x11


Only test2.eps is OK, the test1.eps is full of zeros as described before.
If I add more to this script to make test3.eps, test4.eps, etc, only the
last one printed is OK, the rest are mainly zeros.


If on the other hand I do

automatic_replot = 0;

gset output 'test1.eps'
gset terminal postscript eps
plot(randn(1,10))
gset terminal x11

gset output 'test2.eps'
gset terminal postscript eps
plot(randn(1,10))
gset terminal x11

Then all is fine, no matter how long the chain.

When I use first method in a chain of plots and prints, ie where I look at
the plots in X before printing, then only the last I looked at is OK, the
ones I looked at, back to where I last printed without looking, are
zeroed. I hope this description makes sense.

> Preferred way of doing what you are trying to do
> is :
>
> plot(rand(1,10))
> print("-depsc2", "test1.eps")

What is this "print" function? There is no function defined and nor is it
documented.

Kevin



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