get function returns unexpected values

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Igor Gayday 2020-8-20

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https://ww2.mathworks.cn/matlabcentral/answers/581990-get-function-returns-unexpected-values

评论： Igor Gayday 2020-8-20

I have a function, which creates a figure, plots something and changes several plot parameters. At some point I want to query current values of y-tick labels, which I do via:

current_ticks = get(gca, 'YTick');

The values that I get here are different from what I see on the plot once it's displayed. I believe this happens because get tries to query the plot in an intermediate state, before all adjustsments are processed, since putting

pause(0.1)

(or simply pausing in the debugger) right before the call to get changes its answer and makes it consistent with what I see in the figure. The same things happens if I use yticks function. Is there a better solution to this?

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Igor Gayday 2020-8-20

编辑：Igor Gayday 2020-8-20

在 MATLAB Online 中打开

Geoff, here is an example:

f = figure;
f.WindowState = 'maximized';
axis = gca;
axis.FontSize = 20;
hold on
plot(1:10, 1:10);
ylim([0, 100]);
y_ticks = get(gca, 'YTick');

As Bjorn correctly pointed out, the issue stems from the change of window's size. If you run this code, the values of y_ticks will be the same as if the window was not maximized. In the maximized version, displayed to me after the execution of this code, the ticks will be different.

Igor Gayday 2020-8-20