gnuplot development

On 29.05.2011 15:48, mc_pork@... wrote:

> Does anybody know any details about how to variably set the line
> spacing in titles? Since I use the "enhanced" mode with exponents,
> the exponents overlap with the previous line, so I would be happy to
> increase the line spacing. On the other hand, inserting an empty line
> would be way too much.

It's not entirely clear what kind of titles you're referring to.  If 
it's the titles of individual data sets, see the "height <increment>" 
option in "help set key".

Here's an example of a way I have found to do this:

unset title
set label '{/=16 Title Line 1}'   at 6.5, 11.25 center offset 0, 2.5
set label '{/=16 Title Line 2}'   at 6.5, 11.25 center offset 0, 0.5

Best,


-Vik



On May 29, 2011, at 6:48 AM, mc_pork@... wrote:

> Thanks!
> 
> Does anybody know any details about how to variably set the line spacing in titles? Since I use the "enhanced" mode with exponents, the exponents overlap with the previous line, so I would be happy to increase the line spacing. On the other hand, inserting an empty line would be way too much.
> 
> Thank you very much and best regards!
> 
> Yukti
> 
> 
> On May 28, 2011, at 2:05 PM, gnuplot-info-request@... wrote:
> 
>> 
>> Message: 4
>> Date: Fri, 27 May 2011 15:38:32 -0400
>> From: Andres Cimmarusti
>> Subject: Re: [Gnuplot-info] Multiple line in titles
>> To: gnuplot-info@...
>> Message-ID: <BANLkTi=374_4hVYzb3iFF4oSWNhhkFDoHg@...>
>> Content-Type: text/plain; charset=UTF-8
>> 
>> Hi Yukti,
>> 
>> Well, this is not a good solution but it may work. You can set any
>> label on the plot canvas using the "set label" command, for example:
>> 
>> set label 1 "second line of the title" , at 4,4
>> 
>> This puts the text "second line of the title" starting at point (4,4)
>> on the canvas/plot area.
>> 
>> The catch is you'll have to play with the coordinates until you get it right...
>> 
>> If I find something else I'll let you know
>> 
>> Good luck
>> 
>> Andr?s
>> 
>> PS: sorry for the delayed response, I'm subscribed to digest mode and
>> only today I got your message...perhaps other people have already
>> replied that I'm unaware of
>> 
> 
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On 28.05.2011 12:46, felipe rodriguez wrote:
> *"cargasdistribuidas.gnu",line 6:warning:Skipping unreadable flie
> "C:Placasmalla.dat"*

The reason for that message is that those:

> *plot "C:\Placas\malla.dat","C:\Placas\cargasdistribuidas.dat" lt -1

are the wrong way to spell pathnames in gnuplot on Windows.  The 
backslash character has special meaning in "double quoted" strings in 
gnuplot (see "help quotes").  You want to write one of the following 
instead:

	"C:\\Placas\\malla.dat"
	'C:\Placas\malla.dat'
	"C:/Placas/malla.dat"
	'C:/Placas/malla.dat'

You might also want to consider changing to the folder you're actually 
working in, rather than running in gnuplot's installation directory, 
where you really should not be keeping your data files.  Either do that 
from the outside, before you start gnuplot, or 'cd' inside gnuplot (see 
"help cd").

Or, if you consistently keep all your files in a few fixed places, you 
might want to consider setting the GNUPLOT_LIB environment variable to 
let it find them there by default (see "help environment").

On 25.05.2011 17:37, Jon wrote:

> I specify titles in the plot command, and let them be displayed in the key
> box. But I would like to change the sequence of the titles in the key box,
> say, the title to the second plot be shown as the first in the key box.

Hmmm.... and how would the result differ from that you can get just 
changing the sequence of datasets inside the 'plot' command?

Just liked the color sequence and lazy to add more words to specify color
when changing the plotting sequence.

The concerns is not just that, I suppose the ability to specific sequence in
the key should be included in 'plot' command ...



2011/5/25 Hans-Bernhard Bröker <HBBroeker@...>

> On 25.05.2011 17:37, Jon wrote:
>
>  I specify titles in the plot command, and let them be displayed in the key
>> box. But I would like to change the sequence of the titles in the key box,
>> say, the title to the second plot be shown as the first in the key box.
>>
>
> Hmmm.... and how would the result differ from that you can get just
> changing the sequence of datasets inside the 'plot' command?
>

On 28.05.2011 00:15, Jon wrote:
> Just liked the color sequence and lazy to add more words to specify color
> when changing the plotting sequence.

And how else, if not by "adding more words" do you think you would be 
going to specify that non-default key sequence, then?

> The concerns is not just that, I suppose the ability to specific sequence in
> the key should be included in 'plot' command ...

And you really haven't given any good reason why.

Thank you for your reply.

I'm rather new to gnuplot , so I don't quite get what I am supposed to do. I
am using a script in order to do a plot for some files. The script is as
follows:


for file in $*
do
gnuplot <<EOF
set terminal png
set output "$1.png"
set key out vert
set key bot center
set title "Packet Loss Estimation for: $1"
set timefmt "%s"
set xdata time
set ylabel "Time gaps (sec)"
set y2label "Lost Packets"
set ytics border
set y2tics border
set xtics rotate by 90 border offset 0,-4
set style line 1 lt rgb "gray" lw 7
set style line 2 lt rgb "black" lw 2
plot "$1" using 1:2 ls 1 title "Time gaps" axes x1y1 with lines, "$1" using
1:3 ls 2 title "Packet Losses" axes x1y2 with impulses
EOF
done

I'm still confused as to where am I supposed to create the dummy plot and if
it will affect the output that I need (in the script, marked as $i.png).

Thank you again for your time and help.


-- 
View this message in context: http://old.nabble.com/Align-zeros-in-Y1-and-Y2-axes-tp31713909p31715336.html
Sent from the Gnuplot - User mailing list archive at Nabble.com.

you set everything except 'terminal' and 'output'.
then you do the dummy plot, calculate and set the 'y2range',
set 'terminal' and 'output', plot again.

an example:

reset
set ytics nomirror
set y2tics
set xzeroaxis
set output
# dummy plot
set terminal dumb
plot x-2 axes x1y1, x+5 axes x1y2
# now all the variables are set
# prepare for the real plot
set terminal png
set output "test.png"
# assumption: both yranges contain 'zero'
# otherwise the calculation would be more complicated
yd=GPVAL_Y_MAX-GPVAL_Y_MIN
y2d=GPVAL_Y2_MAX-GPVAL_Y2_MIN
yu=-GPVAL_DATA_Y_MIN/yd
yo=GPVAL_DATA_Y_MAX/yd
y2u=-GPVAL_DATA_Y2_MIN/y2d
y2o=GPVAL_DATA_Y2_MAX/y2d
temp=yo/yu*y2u
y2o=temp>y2o?temp:y2o
temp=yu/yo*y2o
y2u=temp>y2u?temp:y2u
set y2range [-y2u*y2d:y2o*y2d]
# do the real plot
replot
set output


acsg wrote:
> 
> Thank you for your reply.
> 
> I'm rather new to gnuplot , so I don't quite get what I am supposed to do.
> I am using a script in order to do a plot for some files. The script is as
> follows:
> 
> 
> for file in $*
> do
> gnuplot <<EOF
> set terminal png
> set output "$1.png"
> set key out vert
> set key bot center
> set title "Packet Loss Estimation for: $1"
> set timefmt "%s"
> set xdata time
> set ylabel "Time gaps (sec)"
> set y2label "Lost Packets"
> set ytics border
> set y2tics border
> set xtics rotate by 90 border offset 0,-4
> set style line 1 lt rgb "gray" lw 7
> set style line 2 lt rgb "black" lw 2
> plot "$1" using 1:2 ls 1 title "Time gaps" axes x1y1 with lines, "$1"
> using 1:3 ls 2 title "Packet Losses" axes x1y2 with impulses
> EOF
> done
> 
> I'm still confused as to where am I supposed to create the dummy plot and
> if it will affect the output that I need (in the script, marked as
> $i.png).
> 
> Thank you again for your time and help.
> 
> 
> 

-- 
View this message in context: http://old.nabble.com/Align-zeros-in-Y1-and-Y2-axes-tp31713909p31715337.html
Sent from the Gnuplot - User mailing list archive at Nabble.com.

There are several gnuplot/FORTRAN interfaces for you to chose from
that might help.

Try "batch/interactive" in help for some ideas on invoking gnuplot.
Also the introduction, windows and files entries might be of help.

Best,

     jab

On 26.05.2011 13:37, felipe rodriguez wrote:

> I try run gnuplot from a fortran program in Windows SO.

I've no idea what Windows "SO" is supposed to refer to.  Ah well.

> CALL SYSTEM('gnuplot>  load"proc.txt"')

What you're really looking for is probably

	CALL SYSTEM('gnuplot proc.txt')

But make sure to check out "help batch" from inside gnuplot for the details.

Thanks for your comment, I overlooked the first and second option in
coordinate explanation.

Sincerely,
Jon


2011/5/22 Hans-Bernhard Bröker <HBBroeker@...>

> On 22.05.2011 20:45, Jon wrote:
>
>  I would like to set arrow to label something which is drawn according to
>> y2
>> axis, thus if I can use coordinate y2 for locating arrow, that would be
>> very
>> convenient if I readjust coordinate of y2, which will make the plot shift
>> as
>> well.
>>
>
> Given that the information you're looking for is right there in the 3rd
> paragraph of "help set arrow", I really wonder how you might have managed to
> miss it when you looked there, before asking here...
>

Hello,

I have to add that I was having the problems about not being able to do line breaks only when using something like

splot 'file' u 1:2:3 w l title columnhead(1)

If instead I just set

set title "line 1\nline 2"

before, then it works.

But now I unfortunately ran into the next problem I was not able to solve: I use special characters and exponents, and then the two lines are too close to each other. Is there a way to increase the line spacing somehow? \n\n would be too much.

Thanks very much for your help, and best regards
Yukti

Hi, have you tryied pm3d?

http://t16web.lanl.gov/Kawano/gnuplot/plotpm3d-e.html

Amir


On 23 May 2011 08:58, Xi Liu <jason.liuxi@...> wrote:

> Hi all:
> I got a 3 dimension data set whose x and y values both range from 1 to 200,
> z value varies between -5000 to 5000,  I want to plot a 2d colored
> distribution map drawing 40000 points with different color depending on
> their z value, for example the point with -5000 get pure white, and 5000
> get
> pure black, and the color will change smoothly from . So I can tell where
> the most black area goes during plotting several consecutive date sets and
> decide which x,y pair I should use in the future.
> But I don't find corresponding command to solve my problem, so I use the
> following commands:
>
> set palette model RGB defined (0 'white', 1 'black')
> set view map
> splot "file"  u 1:2:3 with points palette
>
> a stupid solution, draw the 3d picture and look down from above. this kind
> of solve my problem except the picture are not that smooth and points are
> cross-shaped. I think I must have missed some important command in gnuplot,
> would someone give me a hint how to solve this in a gnuplot way?
>
> and BTW, when I open there pipes to three gnuplot processes  issuing
>  commands plotting the pictures I described above, the whole process takes
> about five seconds to draw the whole 3 pics. Is that a little abnormally
> slow?
>
> Thanks for your time on my stupid question.
>
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