CODEWITHSUNDEEP
matlabplotmatlab-figure
Amir Sagiv
Amir Sagiv

Reputation: 386

Get XTick locations and display text near them

My goal: use text command to put text near an xtick, but not via xticklabel.

Example: Suppose I have the following code

figure
plot([1:10],[1:10])
set(gca, 'XTick',[3])
set(gca, 'XTickLabel',{''})

Now, I would like to write something like (this is not a working code)

ticklocs = get(gca,'xtick',locations);
text(locations(1),locations(2), 'my cool text here');

I know that that I can put the text in the XTickLabel format, but it does not enable me all the text flexibility that text allows me.

If you do know how to put Latex in the xticklabel, it is also interesting, but an off topic for this post (just comment).

Upvotes: 1

Views: 497

Answers (1)

Suever
Suever

Reputation: 65430

You can get the xtick property which will give you the x value of the tick mark. You can then use the axes ylim property to determine the minimum y value which will be it's rough y location. You can then apply padding as necessary to these values and use text to display text wherever.

ax = axes();

% Get the upper and lower y limits
ylims = get(ax, 'ylim');

% Get the x positions of the tick marks
xticks = get(ax, 'xtick');

% For each tick we're going to use padding between -10% of the ylimits to 10%
padding = linspace(-0.1, 0.1, numel(xticks));

for k = 1:numel(padding)
    % Compute the y value based upon the desired padding and the lower y limit
    yvalue = ylims(1) - diff(ylims) * padding(k);

    % Display the text
    text(xticks(k), yvalue, sprintf('Label %d', k), 'HorizontalAlignment', 'center');
    hold on
end

enter image description here

That being said, since R2015a, you can put LaTeX directly in your xtick labels and use the TickLabelInterpreter property of the axes to specify that you'd like to use the LaTeX interpreter. 

axes('Xtick', [0 0.5 1], ...
     'XTickLabel', {'10\circ', 'x^{1}', 'Y_2'}, ...
     'TickLabelInterpreter', 'latex')

enter image description here

Upvotes: 1

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