Fit figure size to textbox

Question

Ondrej 2012-3-10

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https://ww2.mathworks.cn/matlabcentral/answers/31841-fit-figure-size-to-textbox

Is there some way to fit the figure size to the textbox? Example:

I have a = annotation(... 'textbox','Position',[0.1482 0.7333 0.17 0.16],... 'FitHeightToText','on',... 'String','Example');

which makes a textbox in a figure. I would like to fit the size of the figure to this textbox. Is it possible? Thanks.

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Answer 1

Jacob Halbrooks 2012-3-12

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You could compute your desired figure Position from the annotation and then set it, but you'll have to manage the Units consistently and reset the annotation's normalized position at the end. For example, something like this:

a = annotation('textbox','Position',[0.1482 0.7333 0.17 0.16], 'FitHeightToText','on','String','Example');
set(a,'Units','pixels');
aPos = get(a,'Position');
fPos = get(gcf,'Position');
fPos(3:4)=aPos(3:4);
set(gcf,'Position',fPos);
set(a,'Units','norm','Position',[0 0 1 1])

When possible though, it's better to create the container to the desired size first and then create its children using normalized position to fill up the container.