How do i get my textbox to display the given value of my variable??

Question

Sebastian Obwoya 2019-10-2

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https://ww2.mathworks.cn/matlabcentral/answers/483190-how-do-i-get-my-textbox-to-display-the-given-value-of-my-variable

编辑： the cyclist 2019-10-4

采纳的回答： the cyclist

pongAxes = axes('color','black','XLim',[0 100],'YLim',[0 100]),...

annotation('textbox',[0.3,0.8,0.2,0.2],'color','white','dis(score(1))');

score = [0,0];

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Sebastian Obwoya 2019-10-3

编辑：Sebastian Obwoya 2019-10-3

I want an annotation. It was actually supposed to be written like:

annotation('textbox',[0.3,0.8,0.2,0.2],'string','(score(1))');

My purpose was to print out the first value (1) of my variable score[0,0] in my gamer, to make a scoreboard.

Rik 2019-10-3

In that case the sprintf command is what you're looking for, as the cyclist already suggested in his answer. Read the documentation for an overview of all available formatting options.

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Answer 1

the cyclist 2019-10-2

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https://ww2.mathworks.cn/matlabcentral/answers/483190-how-do-i-get-my-textbox-to-display-the-given-value-of-my-variable#answer_394423

编辑：the cyclist 2019-10-4

在 MATLAB Online 中打开

I'm guesing that

dis(score(1))

is a variable you are trying to display. You need to convert that to a string -- just putting quotes around it won't work, as you have presumably discovered.

Try

sprintf('%8.2f',dis(score(1)))

to show what that string will look like. I'm guessing at the format. You could use '%d' if it is an integer, or try adjust the values I guessed at for a floating point. See the documentation for sprintf for lots of details.

You could also just use

num2str(dis(score(1)))