gnuplot-info

[Gnuplot-info] command line arguments to gnuplot scripts

[Philipp F. <phi...@hh...>]

Hello

Is it possible to pass arguments to a Gnuplot script (in Linux on the
command line), e.g. a file name for a data file. I would like to do the
following kind of script:

#! /usr/bin/gnuplot
set title ARGV[1]
plot ARGV[1].data using ($16 * 8):20 with linespoints notitle
pause -1

This script should generate a plot with the title given as first command
line argument, an with the graph constructed from the first command line
argument added with the suffix .data.

Best regards
Philipp

________________________________________________________________________
Dipl.-Ing. Philipp Fechteler
Department Image Processing
Fraunhofer Institute for Telecommunications
Heinrich-Hertz-Institut (HHI)
Einsteinufer 37
10587 Berlin, Germany
Phone	+49 30 31002 616
Fax	+49 30 31002 200
Email	phi...@hh...
WWW	http://iphome.hhi.de/fechteler
________________________________________________________________________

Re: [Gnuplot-info] command line arguments to gnuplot scripts

[<HBB...@t-...>]

Philipp Fechteler wrote:

> Is it possible to pass arguments to a Gnuplot script (in Linux on the
> command line), e.g. a file name for a data file. I would like to do the
> following kind of script:
> 
> #! /usr/bin/gnuplot
> set title ARGV[1]
> plot ARGV[1].data using ($16 * 8):20 with linespoints notitle
> pause -1

The easiest would be not to make them direct /usr/bin/gnuplot scripts, 
but rather something like this:

#! /bin/sh
name=$1
/usr/bin/gnuplot <<\EOF
set title "$name"
plot "$name.data" using (\$16 * 8):20 with linespoints notitle
pause -1
EOF

Alternatively, you can put the arguments into environment variables and use

	`echo $VARIABLE`

in your gnuplot script to access them.

Re: [Gnuplot-info] command line arguments to gnuplot scripts

[SB <ste...@gm...>]

Hello Philipp,

I had a similar problem and used a slightly different way than Bernard suggested. 
It is not as elegant but there are advanced possibilities.

I wrote a script that first creates a gnuplot-script-file (plotfile.gnu)
and then calles gnuplot to open it. 
The gnuplot-script-file will look exactly like the one you asked for,
with one extra line (save "diagramm.gnu") at the end. 

The script for your problem could look similar to the following one:


#!/bin/sh
#Step 1: create file
echo set title $1 > plotfile.gnu
echo plot $1.data using (\$16 * 8):20 with linespoints notitle
>>plotfile.gnu
echo pause -1 >>plotfile.gnu
echo save \"diagramm.gnu\"
#Step 2: call gnuplot
gnuplot plotfile.gnu


When you see the plot, gnuplot is in interactive mode and you can
therefore zoom in and out, turn on/off logscale and so on.
If you liked the plot, rename the file "diagramm,gnu" and you have it
saved with the last settings for zoom and so on.

By the way, you can also teach KDE/Gnome/... to open your .data-files by
click with a script like this. You need to modify the script that it
accepts the complete filename. Then set the file associations of
KDE/Gnome/... to open .data-files with this script. 
Then you just click on your .data file in the file-browser and have it
displayed directly. 

I hope, this can be useful for you,

Schöne Grüße,

Stephan


Am Freitag, den 08.12.2006, 14:45 +0100 schrieb Philipp Fechteler:
> Hello
> 
> Is it possible to pass arguments to a Gnuplot script (in Linux on the
> command line), e.g. a file name for a data file. I would like to do the
> following kind of script:
> 
> #! /usr/bin/gnuplot
> set title ARGV[1]
> plot ARGV[1].data using ($16 * 8):20 with linespoints notitle
> pause -1
> 
> This script should generate a plot with the title given as first command
> line argument, an with the graph constructed from the first command line
> argument added with the suffix .data.
> 
> Best regards
> Philipp
> 
> ________________________________________________________________________
> Dipl.-Ing. Philipp Fechteler
> Department Image Processing
> Fraunhofer Institute for Telecommunications
> Heinrich-Hertz-Institut (HHI)
> Einsteinufer 37
> 10587 Berlin, Germany
> Phone	+49 30 31002 616
> Fax	+49 30 31002 200
> Email	phi...@hh...
> WWW	http://iphome.hhi.de/fechteler
> ________________________________________________________________________
> 
> 
> -------------------------------------------------------------------------
> Take Surveys. Earn Cash. Influence the Future of IT
> Join SourceForge.net's Techsay panel and you'll get the chance to share your
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Re: [Gnuplot-info] command line arguments to gnuplot scripts

[LukasP <LP...@po...>]

Hello all,

I have the same problem - how to access parameters passed on the system
command line.

I am a Windows user, so solutions described above are unreachable for me.

Let's have system command:

wgnuplot.exe tab2png.gp test.tab

Inside the tab2png.gp, I need to access test.tab passed on the command line.
How to do it?

Do you think it would be possible or useful to implement built-in variables
(e.g. ARG1, ... ARG9) which would represent the command line arguments for
[w]gnuplot?

Or to create a built-in function e.g. getenv(varname) which would get the
environment variable? So it would be possible to write to the command line:

C:\> wgnuplot.exe tab2png.gp test.tab

or:

C:\> set FILE=test.tab
C:\> wgnuplot.exe tab2png.gp

And the tab2png would look e.g.:

plot $ARGV1 using 1:2 with lines

or:

set FILE getenv("FILE")
plot FILE using 1:2 with lines

Thank you in advance

Lukas
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Re: [Gnuplot-info] command line arguments to gnuplot scripts

[seb_kramm <seb...@ya...>]

LukasP a écrit :
> Let's have system command:
> wgnuplot.exe tab2png.gp test.tab

I'm not sure what you want exactly, I guess it is a generated line from somewhere else.
If you can remove the .exe in the calling line, then just create a simple 
wgnuplot.bat, that is given priority over the .exe by the OS
It will just contain these lines:

dowhatyouwant.exe %1 %2
wgnuplot.exe %1 %2

with "dowhatyouwant.exe" ( or .bat) being the app that will fetch the arguments
Of course, beware of spaces (or use quotes)

Re: [Gnuplot-info] command line arguments to gnuplot scripts

[Hans-Bernhard B. <HBB...@t-...>]

LukasP wrote:

> I have the same problem - 

The same as --- which one?

> how to access parameters passed on the system command line.

You don't, because you can't pass them.  gnuplot treats all command line 
arguments as file names or options, but not as parameters.

> I am a Windows user, so solutions described above are unreachable for me.

Again: what "above" are you referring to?

> Do you think it would be possible or useful to implement built-in variables
> (e.g. ARG1, ... ARG9) which would represent the command line arguments for
> [w]gnuplot?

No.  Because all such arguments already are script filenames.  A single 
argument can't be two different things at once.

> Or to create a built-in function e.g. getenv(varname) which would get the
> environment variable? 

Not need to.  Piping the 'echo' command already does that.  _If_ you use 
the wgnuplot_pipes.exe or the (soon to become available) gnuplot.exe 
console version, that is.

> set FILE getenv("FILE")

set FILE=system("echo %FILE%")

Re: [Gnuplot-info] command line arguments to gnuplot scripts

[LukasP <LP...@po...>]

... OK, thank you for the explanation.

I didn't realize that all gnuplot parameters are treated as file names.
Sorry.


Hans-Bernhard Bröker-2 wrote:
> 
> You don't, because you can't pass them.  gnuplot treats all command line 
> arguments as file names or options, but not as parameters.
> 
> set FILE=system("echo %FILE%")
> 

I tried to get environment variable as suggested, but I was not successful,
see the output:

Terminal type set to 'windows'
gnuplot> FILE=system("echo %HOME%")
         warning: system evaluation not supported by MS-Windows 32 bit

So how to get it? Note that the "HOME" variable was set to "C:\Lukas" via
system command:

set HOME=C:\Lukas

(Hope there won't be any problems using "\" in file names, although the "/"
is used at Linux systems and "\" is often the escape-sequence prefix.)

Thank you in advance.

Lukas

NB:

        G N U P L O T
        Version 4.2 patchlevel 6
        last modified Sep 2009
        System: MS-Windows 32 bit

        Copyright (C) 1986 - 1993, 1998, 2004, 2007 - 2009
        Thomas Williams, Colin Kelley and many others                           

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Re: [Gnuplot-info] command line arguments to gnuplot scripts

[Tatsuro M. <tma...@ya...>]

Hans Wrote
**********
If_ you use 
the wgnuplot_pipes.exe or the (soon to become available) gnuplot.exe 
console version, that is.
**********
You should use wgnuplot_pipes.exe but not wgnuplot.exe if you would  like to use gnuplot 4.2.6 as Hans
wrote.

You can also use gnuplot.exe in  gnuplot 4.4rc1 or 4.5 (cvs).

windows version gnuplot 4.4rc1 is available at
http://sourceforge.net/projects/gnuplot/files/ 

I am distributing   gnuplot 4.4rc1 or 4.5 (cvs) at

http://www.tatsuromatsuoka.com/gnuplot/Eng/winbin/

Regards

Tatsuro
--- LukasP <LP...@po...> wrote:

> 
> ... OK, thank you for the explanation.
> 
> I didn't realize that all gnuplot parameters are treated as file names.
> Sorry.
> 
> 
> Hans-Bernhard Br将モker-2 wrote:
> > 
> > You don't, because you can't pass them.  gnuplot treats all command line 
> > arguments as file names or options, but not as parameters.
> > 
> > set FILE=system("echo %FILE%")
> > 
> 
> I tried to get environment variable as suggested, but I was not successful,
> see the output:
> 
> Terminal type set to 'windows'
> gnuplot> FILE=system("echo %HOME%")
>          warning: system evaluation not supported by MS-Windows 32 bit
> 
> So how to get it? Note that the "HOME" variable was set to "C:\Lukas" via
> system command:
> 
> set HOME=C:\Lukas
> 
> (Hope there won't be any problems using "\" in file names, although the "/"
> is used at Linux systems and "\" is often the escape-sequence prefix.)
> 
> Thank you in advance.
> 
> Lukas
> 
> NB:
> 
>         G N U P L O T
>         Version 4.2 patchlevel 6
>         last modified Sep 2009
>         System: MS-Windows 32 bit
> 
>         Copyright (C) 1986 - 1993, 1998, 2004, 2007 - 2009
>         Thomas Williams, Colin Kelley and many others                           
> 
> -- 
> View this message in context:
> http://old.nabble.com/command-line-arguments-to-gnuplot-scripts-tp7757834p26871956.html
> Sent from the Gnuplot - User mailing list archive at Nabble.com.
> 
> 
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Re: [Gnuplot-info] command line arguments to gnuplot scripts

[Ismail A. <ism...@go...>]

Hello

The best way to do is to use environment variables in shell and access them
in Gnuplot script

Example:
-------------------------------------------------------------
In the shell:
export name=plot_data_file
-------------------------------------------------------------
In Gnuplot script:

#! /usr/bin/gnuplot
name=system("echo $plot_data_file")
set title name
plot name.".data" using ($16 * 8):20 with linespoints notitle
pause -1
-------------------------------------------------------------
Best regards,
Ismail Amin


Philipp Fechteler wrote:
> 
> Hello
> 
> Is it possible to pass arguments to a Gnuplot script (in Linux on the
> command line), e.g. a file name for a data file. I would like to do the
> following kind of script:
> 
> #! /usr/bin/gnuplot
> set title ARGV[1]
> plot ARGV[1].data using ($16 * 8):20 with linespoints notitle
> pause -1
> 
> This script should generate a plot with the title given as first command
> line argument, an with the graph constructed from the first command line
> argument added with the suffix .data.
> 
> Best regards
> Philipp
> 
> ________________________________________________________________________
> Dipl.-Ing. Philipp Fechteler
> Department Image Processing
> Fraunhofer Institute for Telecommunications
> Heinrich-Hertz-Institut (HHI)
> Einsteinufer 37
> 10587 Berlin, Germany
> Phone	+49 30 31002 616
> Fax	+49 30 31002 200
> Email	phi...@hh...
> WWW	http://iphome.hhi.de/fechteler
> ________________________________________________________________________
> 
> 
> -------------------------------------------------------------------------
> Take Surveys. Earn Cash. Influence the Future of IT
> Join SourceForge.net's Techsay panel and you'll get the chance to share
> your
> opinions on IT & business topics through brief surveys - and earn cash
> http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV
> _______________________________________________
> Gnuplot-info mailing list
> Gnu...@li...
> https://lists.sourceforge.net/lists/listinfo/gnuplot-info
> 
> 

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