Plotting in a GUI in RTW

Hello everyone.
I've written an 'Embedded MATLAB Function' that allows me to plot realtime data from a Simulink model in a GUI (which I created in GUIDE).
function flag = fcn(x, y)
%#eml
eml.extrinsic('plot', 'findobj');
axesHandles = findobj('Type', 'axes', 'Tag', 'axTrack');
plot(axesHandles, x, y, 'b-');
flag = 0;
This code works without any problems when I just run simulations.
As soon as I try this within RTW, it doesn't work anymore. While RTW was running, I tried to plot a point on my GUI with the same syntax, but from the Command Window
axesHandles = findobj('Type', 'axes', 'Tag', 'axTrack');
plot(axesHandles, 0, 0, 'b+', 'MarkerSize', 10);
and it worked.
Does somebody know how to make it work in the EMF?
Thank you in advance.
Francesco

 采纳的回答

Francesco
Francesco 2011-2-15

0 个投票

I solved the problem using event listeners.

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http://www.mathworks.com/matlabcentral/fileexchange/24294-simulink-signal-viewing-using-event-listeners-and-a-matlab-ui

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更多回答(2 个)

Kaustubha Govind
Kaustubha Govind 2011-2-14

0 个投票

RTW generates code for embedded systems - MATLAB graphics are therefore not supported in generated code. In fact, documentation for eml.extrinsic clearly states that code is not generated for functions called this way.
Francesco
Francesco 2011-2-14

0 个投票

I see. Thanks. Do you know how I could plot the data I get from simulink?
(I get x and y coordinates and I would like to display them in my GUI)

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