Tab formatter is not working with sprintf
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I am trying to write text to put in as an annotation on a line plot. Unfortunately, my code is not working as I'd like it, even though all of the documentation indicates that it should. This is not the very time I have not been able to use the tab formatter on MATLAB.
This is my code:
figure
plot(sizes(:, 1), count1(:, 1), 'LineWidth', 2);
lsline
dim = [0.3 0.6 .3 .3];
str = sprintf('mode:\t%5.1f nm\nmean:\t%5.1f nm\nSD:\t%5.1f nm', modeSize, meanSize, stdDev);
annotation('textbox',dim,'String', str,'FitBoxToText','on');
I expect the text in the textbook to show up as:
mode: 145.5 nm
mean: 175.3 nm
SD: 66.8 nm
However, my plots looks like this:
The only explanation I can come up with is that I specified the text as 'String' when I created the annotation. This is does not make sense though as 'sprintf' creates character vectors and strings.
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Answers (1)
Walter Roberson
on 20 Sep 2019
Fonts. As in the default is variable-spaced fonts. And tab does not have a particular width.
tab is a concept for character-oriented displays like the command window, not for graphics display.
If you want to align text, then create a separate text() or annotation() object for the part to be aligned, and set appropriate alignment properties.
4 Comments
Walter Roberson
on 20 Sep 2019
The linefeed character appears to be processed by the tex interpreter. You can also use \newline in place of the newline character -- but be careful that you do not use \newline inside of an sprintf format or the \n will be translated
str = sprintf('mode:\t%5.1f nm\\newlinemean:\t%5.1f nm\\newlineSD:\t%5.1f nm', modeSize, meanSize, stdDev);
If you switch to latex interpreter then you can use various spacing commands such as \hspace or \quad . You could probably use the array constructors too, but I seem to be having some difficulty finding the right ones at the moment.
Walter Roberson
on 21 Sep 2019
Possibly with LaTex interpreter you could use \matrix
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