Plot title: set font size with LaTeX interpreter

Greetings, dear community!

I use LaTeX interpreter for generating a plot title:

title('Interesing Plot','Interpreter','latex')

Now I want is to be underlined:

title('\underline{Interesing Plot}','Interpreter','latex')

And finally I want to set font size either explicitly or using LaTeX syntax:

• \Huge
• \huge
• \LARGE
• \Large
• \large

Answer 1

[Martin]

From the Maltab online help: Text with Mathematical Expression Using LaTeX

By default, text objects in MATLAB® support a subset of TeX markup. For a list of supported TeX markup, see the text Interpreter property description.

It sould be: (underling not possible)

title('\fontsize{19} Interesing Plot')

Or you can do:

hT = title('Interesing Plot')
set(hT, 'FontSize', 19)

I hope you did already find a solution :), but for others reading this question.... I post an answer.

Martin

[Ondrej Zika]

Hi,

I find that latex formatting in title simply doesn't work. While for axes or legend I can format the text as you indicated, for title nothing works.

i) When the content is simply text it works fine, selecting default font size

t=title('Interesing Plot')

ii) When I add fontsize

t=title(['\fontsize{19} Interesting Plot']

iii) Any subsequent manipulations have no effect, e.g.

 set(t, 'FontSize', 16);

I am on Ubuntu 18.04, Matlab2019a.

Thanks for any tips.

Ondrej

[Martin]

Hello Ondrej,

Please try tex interpreter in stead of latex:

figure
plot(rand(10,10))
title('\fontsize{19} Interesing Plot', 'Interpreter','tex')

Martin

Answer 2

[Mariusz Matusiak]

Hi All,

I've seen this thread is a bit old but I decided to share my observations as they might turn out helpful for someone else in future. When it comes to the latex and tex interpreters, the MATLAB documentation (https://www.mathworks.com/help/matlab/ref/title.html?s_tid=doc_ta#btpi3rq-1_sep_shared-Interpreter) might feel a bit chaotic and misleading, mixing different ways.

1. To change the font size (tested with MATLAB R2024a):

a) for the latex interpreter use the regular Name-Value parameter specifiers e.g.

title('Nice plot!', 'FontSize', 14, 'Interpreter', 'latex') % 'latex' way

b) for the tex interpreter add \fontsize{..}, e.g.

title('\fontsize{14} Nice plot!', 'Interpreter', 'tex') % 'tex' way

2. To bold:

a) for the latex interpreter the FontWeight parameter is not supported hence add the latex command \textbf{..} e.g.

title('\textbf{Nice plot!}', 'FontSize', 14, 'Interpreter', 'latex') % 'latex' way

b) for the tex interpreter add \bf e.g.

title('\bf \fontsize{14} Nice plot!', 'Interpreter', 'tex') % 'tex' way

BR,

Mariusz