Re: problem with placing legend with GNUplot

[Ben Abbott]

On May 6, 2012, at 4:20 AM, Karel Karlovič wrote:

> 
> 2012/5/6 Ben Abbott <address@hidden>
> 
> On May 5, 2012, at 12:24 PM, Ben Abbott wrote:
> 
> >
> > On May 5, 2012, at 12:12 PM, Karel Karlovič wrote:
> >
> >>
> >> 2012/5/5 Ben Abbott <address@hidden>
> >>> On May 5, 2012, at 7:50 AM, Karel Karlovič wrote:
> >>>
> >>>> 2012/5/4 Ben Abbott <address@hidden>
> >>>>
> >>>>> On May 4, 2012, at 12:38 AM, kovarka4 wrote:
> >>>>>
> >>>>>> Wonderful!
> >>>>>>
> >>>>>> I'm using fltk, but I want to use gnuplot.
> >>>>>>
> >>>>>> close all
> >>>>>> graphics_toolkit gnuplot  work for one time. But when I close octave 
> >>>>>> and
> >>>>>> open it again, there is again "fltk". Is there some possibility to 
> >>>>>> change
> >>>>>> graphics_toolkit to gnuplot permanently?
> >>>>>>
> >>>>>> And I have some other problem. I'm using non-english symbols like á é 
> >>>>>> í etc.
> >>>>>> Is there some possibility to use UTF-8?
> >>>>>>
> >>>>>> Thanks!
> >>>>>
> >>>>> To change the default, edit your ~/.octaverc file and change the line 
> >>>>> ...
> >>>>>
> >>>>>       graphics_toolkit fltk
> >>>>>
> >>>>> to
> >>>>>
> >>>>>       graphics_toolkit gnuplot
> >>>>>
> >>>>> Regarding the non-english symbols, I tried ...
> >>>>>
> >>>>>       text (0.5, 0.5, 'á é í')
> >>>>>
> >>>>> and the resulted rendered as desired. If it does not for you, the 
> >>>>> problem is with gnuplot and its fonts.
> >>>>>
> >>>>> Ben
> >>>>
> >>>> Yes, it works with the legend!
> >>>> Problem  with fonts is solved (maybe with using gnuplot?).
> >>>>
> >>>>
> >>>> But, when I make legend with
> >>>>
> >>>> legend(labels, "location", 'northeastoutside')
> >>>> legend("right")
> >>>> then color lines are still inside the box with graph. See pict1.png.
> >>>>
> >>>> When I make
> >>>>
> >>>> legend(labels, "location", 'northeastoutside') % not legend("right")
> >>>>
> >>>> color lines are outside, but text is on the border of graph. See 
> >>>> pict2.png.
> >>>>
> >>>> Do you know how to get legend with lines alltogether outside of the box 
> >>>> with graph?
> >>>>
> >>>> Thanks!
> >>>
> >>> If you can produce a simple example so that I (or someone else) can 
> >>> duplicate what you're seeing, then we can file a bug report and provide a 
> >>> work around for you.
> >>>
> >>> Running the developers sources for Octave 3.6.x,  and with either the 
> >>> gnuplot and fltk graphics toolkits, the following works for me (the 
> >>> legend and plot box do not overlap)
> >>>
> >>>       clf
> >>>       plot(1:10, 1:10);
> >>>       title("a very long label can sometimes cause problems");
> >>>       legend({"hello world"}, "location", "northeastoutside");
> >>>
> >>> If I add ...
> >>>
> >>>       legend right
> >>>
> >>> There is still no overlap between the legend and plot box.
> >>>
> >>> Ben
> >>
> >> OK, I made this also
> >>
> >> clf
> >>        plot(1:10, 1:10);
> >>        title("a very long label can sometimes cause problems");
> >>        legend({"hello world"}, "location", "northeastoutside");
> >>        legend("right");
> >>        print('-dpng','example.png');
> >>
> >> and the result image stil has a line inside the graph box, part is over 
> >> the box...see example.png
> >>
> >> And to my script...
> >>
> >> format long g
> >>
> >> vstup = [ 0.00500     0.02000    -0.02700     1.00000;
> >>    -0.00100     0.01000     0.03000     2.00000;
> >>     0.00500     0.00100    -0.00200     3.00000;
> >>     0.00400     0.00100     0.00100     4.00000;
> >>     0.00400     0.00000    -0.00100     5.00000;
> >>     0.00500     0.00300     0.00200     6.00000;
> >>     0.00600     0.00000     0.00300     7.00000;
> >>     0.00400    -0.00100     0.00300     8.00000;
> >>     0.00500    -0.00100     0.00100     9.00000;
> >>     0.00700    -0.00100     0.00100    10.00000;
> >>     0.01200     0.00900     0.00800    11.00000;
> >>     0.00000    -0.00800     0.00100    12.00000;
> >>    -0.00300    -0.01100    -0.00300    13.00000;
> >>    -0.00400    -0.01800    -0.00900    14.00000;
> >>    -0.00100    -0.00600     0.00000    15.00000;
> >>    -0.00200    -0.01200     0.00200    16.00000;
> >>     0.00600    -0.00100     0.00700    17.00000;
> >>    -0.00300    -0.00900    -0.00900    18.00000;
> >>     0.01200     0.01300     0.00800    19.00000;
> >>     0.00000    -0.00600     0.00000    20.00000;
> >>    -0.00100    -0.01100    -0.00200    21.00000;
> >>     0.00600    -0.00100     0.00500    22.00000;
> >>     0.00100    -0.00600     0.00400    23.00000;
> >>    -0.00300    -0.00800     0.00800    24.00000;
> >>     0.00400     0.00200     0.00800    25.00000];
> >>
> >> % globalni prumery
> >> plat = [744958.652      1040903.756 258.727]; % A
> >> %%%%%%%%%%%%%%%%%%%%%
> >> % C O M P U T I N G %
> >> %%%%%%%%%%%%%%%%%%%%%
> >> # aa = [0,interval(1,1),interval(2,1),ii];  % hodnota, kde ma byt umisten 
> >> popisek
> >> # bb = [cas00;cas20;cas40;cas60]; % popisek na miste hodnoty aa
> >> ii=rows(vstup);
> >> interval = [ii/3,2*ii/3];
> >> figure(1)
> >> hold on
> >> title("Odchylka souřadnice X [m] od globálního průměru polohy pilíře")
> >> xlabel('jednotlivé body reprezentují čas záznamu po 15 sec')
> >> ylabel('odchylka od průměru [m]')
> >> plot([ii,0], [0,0],'-g')
> >> plot(vstup(1:7,4),vstup(1:7,1),'-r',vstup(8:16,4),vstup(8:16,1),'-b',vstup(17:end,4),vstup(17:end,1),'-c')
> >> axis([00,ii,-0.02,0.02])
> >> labels={'globální průměr','CZEPOS','Trimble VRS Now','TopNET'};
> >> legend(labels, "location", 'northeastoutside')
> >> print('example2.png','-dpng');
> >> hold off
> >> pause
> >>
> >>
> >> When I don't write
> >>
> >> legend("right");
> >>
> >> it is prety good. But the no-english symbols are bad (see in the script 
> >> and on the image "example2.png").
> >>
> >> I'm so sorry, if everything is my stupid mistake.
> >>
> >> Karel
> >
> > Ok. Thanks.
> >
> > This definitely is not working correctly. I'll try to track down the 
> > problem.
> >
> > Ben
> 
> I did some experimenting, constructed a illustrative example, and entered a 
> bug report.
> 
>        https://savannah.gnu.org/bugs/index.php?36408
> 
> To work around this problem, you'll need to output the gnuplot stream, edit 
> it, and then process it through gnuplot again.
> 
> First, after producing the plot in Octave, type the following to save the 
> gnuplot commands in "debug.gp"
> 
>        drawnow ("png", "example2.png", false, "debug.gp")
> 
> Next edit "debug.gp" and modify the line begining with "set rmargin". The 
> value may initially be negative, You'll need to experiment, but using 0.7 
> should give a reasonable result.
> 
>        set rmargin screen 0.70;
> 
> Save "debug.gp" and run gnuplot. From the gnuplot command prompt, type ....
> 
>        load "debug.gp"
> 
> This will produce a new "example2.png"
> 
> Ben
> 
> 
> <example2.png><debug.gp>
> Hi,
> the comand line was
>  
> set rmargin screen 0.71750366116446;
>  
> I tryed the value between 0.65 and 0.75. But it provide an empty image. Maybe 
> I made something wrong...I don't know what to do.
>  
> Images and debug.gp are in attachement.
>  
> Karel

I edited your debug.gp and replaced the font specifications "{},10" with ",10". 
The modifed debug2.gp and the example2.png it produced are attached.

Ben

debug2.gp
Description: Binary data