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Re: Octave does not close figures properly


From: Ben Abbott
Subject: Re: Octave does not close figures properly
Date: Wed, 21 Nov 2012 09:31:49 -0500

On Nov 20, 2012, at 11:29 PM, Fury kerry wrote:

> Hi,
> 
> When draw a lot of figures and close them (click the windows control- "x" 
> button) , Octave does not end the corresponding "gnuplot" and "gnuplot_x11" 
> process. As a result, after a series of drawing and close the figures, Octave 
> end up with the following error:
> 
> Maximum number of clients reached 
> gnuplot: unable to open display ':0'                                          
>                                                                               
>                         
> gnuplot: X11 aborted.                                                         
>                                                                               
>                   I 
> 
> Command "ps aux | grep gnuplot" shows a lot of "gnuplot" and "gnuplot_x11" 
> processes in interruptible sleep states ("S+")
> 
> USER       PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND
> fury      3769  0.0  0.0   6156  1560 pts/3    S+   10:18   0:00 gnuplot_x11
> fury      3770  0.0  0.1  27964  6112 pts/3    S+   10:18   0:00 gnuplot
> fury      3771  0.0  0.0   6156  1556 pts/3    S+   10:18   0:00 gnuplot_x11
> fury      3772  0.0  0.1  27964  6148 pts/3    S+   10:19   0:00 gnuplot
> 
> ...
> ...
> 
> My system configuration:
> Octave 3.6.2
> Ubuntu 12.10
> KDE 4.9.3
> gnuplot 4.6.0
> 
> Zhen 

The communication between Gnuplot and Octave is in one direction only.   There 
is no mechanism by which Gnuplot can tell Octave when a window is closed.

If that functionality is needed, please try the fltk graphics toolkit.

        close all
        graphics_toolkit fltk
        plot (rand (3))
        
Ben




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