MATLAB App Designer fetch data from .m file

Question

rohit 2020-8-27

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https://ww2.mathworks.cn/matlabcentral/answers/585101-matlab-app-designer-fetch-data-from-m-file

评论： Mehmed Saad 2020-8-28

I've a plot function in .m file. Can I plot the same figure inside App Designer with data being fetch from .m file continuously? How to achieve this?

For example, Suppose I've a test.m file and I want to plot it in App Designer.

function test
clc
global T
x=(0:.01:16);
y=sin(3*x);
T = figure(1);
hold all
Dx=50;y1=-1.2;y2=1.2;
for n=1:1:numel(x)
      plot(x,y);axis([x(n) x(n+Dx) y1 y2]);
      drawnow
end
end

Or Is it only possible to have a button in App designer and on clicking it, pop up figures appears?

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Answer 1

Mehmed Saad 2020-8-27

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https://ww2.mathworks.cn/matlabcentral/answers/585101-matlab-app-designer-fetch-data-from-m-file#answer_485648

编辑：Mehmed Saad 2020-8-27

在 MATLAB Online 中打开

if you call this function in app designer it will create an outside figure so you need to edit it a bit

You need to remove

T = figure(1)
hold all

add a UIAxes in you app

for hold on use

app.UIAxes.NextPlot = 'add';

Change this

plot(app.UIAxes,x,y);
app.UIAxes.XLim = [x(n) x(n+Dx)];
app.UIAxes.YLim = [y1 y2];

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rohit 2020-8-28

Can I not plot without making any changes in test.m file?

All necessary changes need to done in app designer only. Also, I want to call test.m in app designer, not copy the logic in app designer.

Mehmed Saad 2020-8-28

if you want to plot it inside the app designer figure, then you need to make changes

if you just want to open a new figure, just write m file name in some button callback or in startup function. remember m file which you are calling must be added to matlab path

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