gnuplot-info

[Gnuplot-info] newbie: gnuplot & cygwin...

[Tompa <tom...@ya...>]

Hi,
I just installed tried gnuplot under cygwin on my windows xp machine like:
gnuplot> plot sin(x)

Unfortunately, no graphics are output? Shouldn't another graphics window 
automatically open??? I thought it would work out-of-box... Must I perform some 
action like setting an environment variable first to get it to work?

Can I specify the output as a file (to view the file with my ordinary 
imageviewer)?

Thanks!
/Tompa

Re: [Gnuplot-info] newbie: gnuplot & cygwin...

[Hans-Bernhard B. <br...@ph...>]

On Mon, 6 Dec 2004, Tompa wrote:

> I just installed tried gnuplot under cygwin on my windows xp machine like:
> gnuplot> plot sin(x)
> 
> Unfortunately, no graphics are output? Shouldn't another graphics window 
> automatically open??? 

Not necessarily.  It depends on how you "installed tried" it.  There are
2 radically different versions of cscope that can be built from the Cygwin 
environment.  One of them (the './configure' built one) is likely to 
behave as you describe, if you configured and built it for X11 support,
but don't have an X server running for it to use.

> Can I specify the output as a file (to view the file with my ordinary 
> imageviewer)?

You have the manual (info gnuplot, or 'help gnuplot' from the running 
program --- your choice).  Read it.


-- 
Hans-Bernhard Broeker (br...@ph...)
Even if all the snow were burnt, ashes would remain.

Re: [Gnuplot-info] newbie: gnuplot & cygwin...

[Hans-Bernhard B. <br...@ph...>]

On Mon, 6 Dec 2004, Hans-Bernhard Broeker wrote:

> Not necessarily.  It depends on how you "installed tried" it.  There are
> 2 radically different versions of cscope 
                                    ^^^^^^

Argh, that should have said "gnuplot" of course.  

-- 
Hans-Bernhard Broeker (br...@ph...)
Even if all the snow were burnt, ashes would remain.

[Gnuplot-info] Re: newbie: gnuplot & cygwin...

[Tompa <tom...@ya...>]

Hans-Bernhard Broeker <broeker <at> physik.rwth-aachen.de> writes:

> 
> On Mon, 6 Dec 2004, Hans-Bernhard Broeker wrote:
> 
> > Not necessarily.  It depends on how you "installed tried" it.  There are
> > 2 radically different versions of cscope 
>                                     ^^^^^^
> 
> Argh, that should have said "gnuplot" of course.  
> 

I just use the one (and only?) version that came with cygwin.
> gnuplot --version
gnuplot 4.0 patchlevel 0

/Tompa

[Gnuplot-info] Re: newbie: gnuplot & cygwin...

[Tompa <tom...@ya...>]

Hans-Bernhard Broeker <broeker <at> physik.rwth-aachen.de> writes:
> depends on how you "installed tried" it.  

Oups. I meant to say "tried". I have a plain installation of cygwin (binaries 
only - no sources here...) and have used it successfully for a while. Today I 
thought I could use gnuplot to visualize some graphs for my weatherstation.

> You have the manual (info gnuplot, or 'help gnuplot' from the running 
> program --- your choice).  Read it.

Yes I have the manual and I have read it too. I thought my original problem 
(not seeing any graphs at all) was tightly coupled with the missing file output.

Now, I found out that I must start x before running gnuplot! If I start x and 
the plot sin(x) a nice sinus curve is drawn on screen :-)

However, the output to file does still not work?!
Here is what happens:
gnuplot> set output "sinus.jpg"
gnuplot> plot sin(x)
winProcEstablishConnection - Hello
winProcEstablishConnection - Clipboard is not enabled, returning.

This makes no sense to me :-(
A file sinus.jpg is created - but it is empty (size=0).

Two questions:
1) How do I work around the erroneous behaviour above?
2) Must x really be running for gnuplot to output graphic files?

/Tompa