How to plot a graph on a panel in App Designer?

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Dong-Gyu
Dong-Gyu 2024-12-4
评论： Dong-Gyu 2024-12-9
Hi.
I have the below app design view, and I would like to plot the same linear graph (y = 1x) on both axes objects, one (UIAxes) is parented to a panel object and the other (UIAxes2) is just on a figure object.
To do this, I have the following callback function startupFcn (executed per app execution).
Then, the execution result is the following; no plot is apprently made on the axes belonging to the panel. Could you tell what was wrong in my code?
  1 个评论
Walter Roberson
Walter Roberson 2024-12-4
Your first diagram makes it look as if the panel is behind an axes. The drawing on top takes priority in App Designer.

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采纳的回答

Yukthi S
Yukthi S 2024-12-4
Hi @Dong-Gyu,
I got that you wanted to plot the same linear graph on two different axes:
a) UIAxes inside a panel and
b) UIAxes2 directly on the figure.
But the function you are using attempts to re-parent UIAxes2 to the panel. The below adjustments to the design and code will achieve the desired behaviour.
  • Make panel the parent component in the design itself.
  • Now switch to Code View and give the below function as the StartupFcn:
function startupFcn(app)
x = 1:1:10; % X data
y = x; % Y data (y = x)
% Plot on UIAxes (inside the Panel)
plot(app.UIAxes, x, y, 'b-', 'LineWidth', 2);
title(app.UIAxes, 'Plot on UIAxes');
xlabel(app.UIAxes, 'X');
ylabel(app.UIAxes, 'Y');
grid(app.UIAxes, 'on');
% Plot on UIAxes2 (directly on the figure)
plot(app.UIAxes2, x, y, 'r--', 'LineWidth', 2);
title(app.UIAxes2, 'Plot on UIAxes2');
xlabel(app.UIAxes2, 'X');
ylabel(app.UIAxes2, 'Y');
grid(app.UIAxes2, 'on');
end
  • Save and run the App. You will see the linear plot on UIAxes inside a panel and UIAxes2 directly on the figure.
Hope this addresses the query!
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Walter Roberson
Walter Roberson 2024-12-9
axes 2 is not parented to the panel, according to your original posting.
Dong-Gyu
Dong-Gyu 2024-12-9
Hi Walter Roberson.
Do you mean "app.UIAxes2.Parent = app.Panel;" in my original code posted in this question? Is it not parenting UIAxes2 to the Panel?

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