Vic Norton vic at norton.name
Thu May 24 17:45:02 EDT 2007

Perhaps you are right, Aaron, but just to satisfy my curiosity try  
the following script.


    show version long

    cd "~/Desktop"
    set term png
    set output "test.png"


You should get a "test.png" file on your desktop. Do you?

In any case the "test.png" image is very much different than the  
"test" picture you would see if you "set term aqua".

When I run this test, my textual output reads

	G N U P L O T
	Version 4.2 patchlevel rc4 CVS-23Jan2007
	last modified Tue Jan 23 21:40:03 PST 2007
	System: Darwin 8.9.0

	Copyright (C) 1986 - 1993, 1998, 2004, 2007
	Thomas Williams, Colin Kelley and many others

	Type `help` to access the on-line reference manual.
	The gnuplot FAQ is available from

	Send comments and help requests to  <gnuplot- 
beta at lists.sourceforge.net>
	Send bug reports and suggestions to <gnuplot- 
beta at lists.sourceforge.net>

Compile options:

DRIVER_DIR     = "/usr/local/libexec/gnuplot/4.2"
GNUPLOT_PS_DIR = "/usr/local/share/gnuplot/4.2/PostScript"
HELPFILE       = "/usr/local/share/gnuplot/4.2/gnuplot.gih"

In particular my version of gnuplot is using GD to produce "test.png".



On May 23, 2007, at 6:59 PM, Aaron Jackson wrote:

> No, you don't need gd.  Accroding to the gnuplot documentation:
> If you want to support gif output, you need to download,
> compile and install the gd library : see term/gif.trm for details.
> Gnuplot is one of the easiest UNIX programs to install.  Depending  
> on what version of LaTeX is installed, most of the optional  
> libraries are included with the distribution.
> On May 23, 2007, at 4:17 PM, Vic Norton wrote:
>> The part about the png files together with the "easy to compile"  
>> comment is not exactly true. I believe that you need to install GD  
>> before installing gnuplot if you want to be able to use the png  
>> terminal. See
>>    <http://www.libgd.org/DOC_INSTALL_OSX>.
>> I may be wrong about this.
>> Regards,
>> Vic

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