[Octave-bug-tracker] [bug #52878] Tiny plots in Qt/FLTK plotting window on UHD / hidpi display

[Dan Sebald]

Follow-up Comment #3, bug #52878 (project octave):

I assume that you used the "subplot()" option to create the plot in the
lower/left corner of the canvas.  Attached are a few screenshots of what I'm
seeing:


octave:1> graphics_toolkit gnuplot
octave:2> subplot(2,2,3)
octave:3> plot(1:10)
octave:4> close all
octave:5> graphics_toolkit qt
octave:6> subplot(2,2,3)
octave:7> plot(1:10)
octave:8> set(gca,'fontsize',18)


Yes, the default axis-tic fontsize for qt toolkit is somewhat small:
  qt_default_font_size_Screenshot_from_2018-01-15_17-23-24.png

The gnuplot default looks pretty good:
  gnuplot_default_fontsize_Screenshot_from_2018-01-15_17-21-37.png

Then there is the ability to enlarge the font size if one wants:
  qt_18_fontsize_Screenshot_from_2018-01-15_17-24-47.png

It would be nice to have functioning Qt environment variables and meaningful
to-screen-dimension scaling (WYSIWYG, if you like), but this is all detailed
work that typically doesn't happen in Octave because of limited resources
spread across too many other bugs.

I typically do work by keeping a script in a file and calling that script.  In
such a case, one can put the set(gca,'fontsize',18) in that script file.  I do
it this way because if I want to generate a figure for a paper or something I
can get fine control and reproduce the figure to a reasonable degree at a
later time.

(file #42918, file #42919, file #42920)
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Additional Item Attachment:

File name: qt_default_font_size_Screenshot_from_2018-01-15_17-23-24.png
Size:16 KB
File name: gnuplot_default_fontsize_Screenshot_from_2018-01-15_17-21-37.png
Size:17 KB
File name: qt_18_fontsize_Screenshot_from_2018-01-15_17-24-47.png Size:18 KB


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