Is it possible to use MATLAB commands to plot Simulink data as a model is running?

I would like to use MATLAB plot commands to augment the output capabilities of Simulink.

Answer 1

[MathWorks Support Team]

This can be accomplished using a MATLAB file S-function which calls a plot command during the mdlUpdate function or mdlOutput function.

Download the attached example files:

1. sim_gui.mdl

2. sim_gui_plot.m

and place it on the MATLAB search path.

This model shows two points moving in a 2-D space, controlled by Simulink inputs.

There are a couple of things to keep in mind while doing this:

1) It is best to avoid performing a PLOT command on each iteration, since this will take significant resources and may cause flickering.

2) The 'DoubleBuffer' property of the figure should be set to 'On' to prevent flickering.

[Emmanouil Tzorakoleftherakis]

The following link might be helpful:

https://www.mathworks.com/matlabcentral/answers/328876-getting-setting-sampling-time-of-s-function-level-2