Ubuntu Forums Archive Viewer

Problem saving plots in octave

Archived thread 1078073 from Education & Science. Markdown source: Education_&_Science/thread_1078073_Problem_saving_plots_in_octave.md

Original URL About this archive
#1

Hello,

I am trying to save a plot in octave. I can save it just fine, but I want to modify the font size and resolution. I have tried 

print('alg2.png','-F:20');

but nothing happens. The font size does not change. I have also tried changing the font size when I plot:

ylabel('y','FontSize',18);

But this results in an error:

warning: set: invalid property `FontSize'

I have found suggestions to run commands something like "gset terminal" followed by "replot", but these all return parse errors. BTW, I am running octave 2.9.12.

#2

Hi snakep,

I think the main problem with fonts and octave in ubuntu is that helvetica is not present, or present in a way it should be. Therefore, I direct octave to use Vera instead. So my suggestion is to direct gdconf to Vera with:


export GDFONTPATH="/usr/share/fonts/truetype/ttf-bitstream-vera"
export GNUPLOT_DEFAULT_GDFONT="Vera.ttf"

in the ~/.bash_profile or similar. The last line does not seem to work for me so I have to hard code the use of Vera. Once you have logged in again you should be able to control font sizes and names with lines like the ones below. 


xlabel('strain (%)','FontName','Vera','FontSize',14)
ylabel('stress  (MPa)','FontName','Vera','FontSize',14)

I think there is more work possible to control the size of the numbering on the axes, but so far I have not been needing that. If you find a way please post it here.

Also, some font related stuff and octave have been discussed in thread

http://ubuntuforums.org/showthread.php?t=428496

perhaps you will find additional info there.