I often use the wxt terminal of Gnuplot to do some quick data inspection. I like the interactivity, such that I can easily gain control and zoom/move et cetera.
Suppose I have to following script
set terminal wxt 0 persist
plot x
set terminal wxt 1 persist
plot x**2
Now, on window 1 I have the interactive control. However, on window 0 this interactive control is lost.
My question is: How can I obtain interactive control on window 0?
I am using gnuplot 4.6.2. I've seen gnuplot multiple graphs are not interactive but the question in about x11 terminal, and the answers consist of opening multiple instance of gnuplot, which seems unnecessary to me.
I believe have found a workaround for this problem.
But not sure if this works for all cases.
My solution sounds like obvious.
I created three files: configs.plt, wxt1.plt, and wxt2.plt.
The configs.plt file contains:
set style line 1 lc "#e41a1c"
set style line 2 lc "#377eb8"
The wxt1.plt file contains:
set terminal wxt title "plot sin"
load "configs.plt"
plot sin(x) w l ls 1
The wxt2.plt file contains:
set terminal wxt title "plot cos"
load "configs.plt"
plot cos(x) w l ls 2
The only boring thing is run two instead one file.
Related
I am trying to launch gnuplot and plot the graph for me with a single command. My script looks like this:
gnuplot
load "runscript"
But it would ignore the second command. Any help would be appreciated,Thanks.
I think that is no necessary to create another script to launch Gnuplot and then load your plotting script. This task is easy to be done using the Gnuplot commands. For example, consider you have a script called "test.gp" and its contents are:
set xlabel "Time t"
set ylabel "sin(t)"
set title 'Gnuplot test with PDFcairo'
plot [0:2*pi] sin(x) with lines lw 2 title 'Sin(x)'
Then, to run your "tes.gp" script just go to the folder that contains the file, and type in the command line:
gnuplot -p test.gp
the '-p' option allows the persist mode and remains the plot window.
Using a flow where I do a 'scratch' plot first to then gather the 'GPVAL_DATA_Y_MIN / MAX' variables for framing the plot size. I then send the actual plot into PNG file. Still the 'scratch' plot command flashes up on screen which I want to avoid. I was doing a 'help set terminal' to see the available terminals (in my gnuplot session) and was looking for something like 'blind' or 'null' but couldn't find any like that. Is there such a terminal? And what is it's name? (Using gnuplot 4.6 patchlevel 7)
Thanks,
Gert
Since I don't know exactly, how you actually use those values, here are some different possibilities:
Gnuplot's "blind" terminal is called unknown:
set terminal unknown
plot "data.dat"
set terminal pngcairo
set output "output.png"
set yrange[GPVAL_DATA_Y_MIN:GPVAL_DATA_Y_MAX]
replot
Variants of this would be to wrap the set terminal unknown call in set terminal push and set terminal pop to go back to the previous terminal.
Use the stats command:
f = "data.dat"
stats f using 2 nooutput
set yrange [STATS_min:STATS_max]
plot f
If you don't need the values for computations, but only to fit the yrange to your actual data range, then use
set autoscale yfix
or
set autoscale yfixmax
possibly combined with set offsets.
Try to send the output to the null device:
On Linux:
set terminal png
set output "/dev/null"
plot sin(x)
set output "real_output.png"
...
On Windows:
terminal png
set output "nul"
plot sin(x)
set output "real_output.png"
...
Read this SO question or this Wikipedia entry, especially for Windows details.
I`d like to write the math stuff into a plot using gnuplot 5:
I am using the terminal postscript enhanced because as far as I know this terminal is the only only capable of doing such things.
I used this code:
set label 1 at 400,200 '{/Symbol=50\362#_{/=15 350}^{/=15\154}}' front
This gets me everything except the subscribed averageunder the lambda symbol.
I tried everything with {,}and so on but I think I missing the part where I can escape the /SymbolStyle.
Many terminals support enhanced text, not only the postscript terminal.
In order to use another font than /Symbol for the subscript you could change the font explicitely to a different one for this. However, a better approach is to change the nesting so that /Symbol affects only two parts:
set label 1 at 0,0 '{/=50{/Symbol \362}#_{/=15 350}^{/=15{/Symbol \154}_{/=10 average}}' front
plot x
Output with gnuplot 5.0 with wxt is
If you're using the postscript terminal anyway, you could give a try to the epslatex terminal (or cairolatex):
set terminal epslatex standalone color colortext
set output 'equation.tex'
set label 1 at -5,5 '$\displaystyle\int_{350}^{\lambda_{\mathrm{average}}}$'
plot x
set output
system('latex equation.tex')
system('dvips equation.dvi')
system('ps2pdf equation.ps')
I have recently upgraded to Debian jessie, meaning that I have upgraded from gnuplot 4.6.0 to gnuplot 4.6.6 (issue is the same with gnuplot 5.0).
I have bash scripts automating things, and launching gnuplot terminal.
I was using either:
gnuplot -persist -e "set title 'Sine curve'; plot sin(x)"
or
gnuplot -persist <<EOF
set title 'Sine curve'
plot sin(x)
EOF
The terminal wxt is no more distributed by debian (and derivatives like ubuntu), because of #751441.
I am using now terminal qt. It displays the plot, but that's the end. The window is static and most of the buttons do not work. I cannot zoom, I cannot unzoom, I cannot show the grid.
How to circumvent this?
Answering my own question: I spent two much time googling, trying to understand why, reading excuses to not correct it, and finding workarounds.
First, you have to remove -persist because it has a wxt special way of working, and it is not the same way of working with qt terminal. See #1418.
Second, you have to add "pause mouse close" after your plot. See #1418. The script is now:
gnuplot -e "set title 'Sine curve'; plot sin(x); pause mouse close"
Now the zoom in, zoom out, and show grid are working.
Third, wait, you did not plotted a sinus, but with lines. Like this example:
$ gnuplot <<EOF
plot '-' using 1:2 t '' with line
0 0
10 10
e
pause mouse close
EOF
Now, if you zoom somewhere in the middle of a segment, you get nothing, an empty and blank screen. What you need is set clip two that tells to not clip when segments ends are not shown. See #1419. So the following will work:
$ gnuplot <<EOF
set clip two
plot '-' using 1:2 t '' with line
0 0
10 10
e
pause mouse close
EOF
Finally, what I have done, is:
add pause mouse close at the end of the script
add set clip two in ~/.gnuplot file
With this, I can mimic the wxt way of working while using qt terminal. IMHO, as a basic end-user, this should be the default.
I am drawing multiple graphs via a shell script in gnuplot.
The graphs are drawn correctly, but am not am able to zoom in . Does any variable need to be set?
Here is the code:
--- for loop of script starts---
gnuplot -persist <<EOF
set term x11 1
set title "IP : $ip Upstream capacity:$UP_CAP kbps"
plot 'trace-0-dir1.txt' using (\$1-$min1):(\$2-\$1-$mindelay1) with lp
set term x11 2
set title "IP: $ip Downstream capacity:$DOWN_CAP kbps"
plot 'trace-0-dir2.txt' using (\$1-$min2):(\$2-\$1-$mindelay2) with lp
EOF
---for loop ends---
Once you switch away from the "x11 1" window the zooming is disabled. To regain control, you should switch back to the specific window (set term x11 1). Another issue is the x11 terminal. You should use wxt which can keep windows alive.
You can solve your issue by using the wxt terminal and separating the two plot commands, therefore not switching away from the window:
--- for loop of script starts---
gnuplot -persist <<EOF
set term wxt
set title "first"
plot x
EOF
gnuplot -persist <<EOF
set term wxt
set title "second"
plot x**2
EOF
---for loop ends---
With this, you have two zoomable windows open and you can still use your shell variables.
In general, you do not have to have console open in order to have active windows, just an appropriate terminal. Especially, the command
gnuplot --persist -e 'plot[0:10] sqrt(x)'
produces scrollable and zoomable windows if used with wxt. Try
gnuplot --persist -e 'set term wxt; plot[0:10] sqrt(x)'
Hope this helps.
AFAIK you are only able to zoom, scroll etc. if the gnuplot console is still active. Meaning, gnuplot must still be running.
To give zooming and scrolling a try, input the following sequence:
Enter the gnuplot console by typing gnuplot
plot a function with plot[0:10] sqrt(x) for example.
Try zooming (Ctrl + Mouse wheel) and scrolling (Mouse wheel / Shift + Mouse wheel) before exiting the gnuplot console.
If you run a script like
gnuplot --persist -e 'plot[0:10] sqrt(x)'
you cannot scroll or zoom anymore.