how can i see variable output in subsystem on the surface of mask?

let's assume i have this model under the mask

then i want to see the value in the display on surface of mask , like this

How can i do that?

Answer 1

[Guy Rouleau]

You will need an event listener or MATLAB S-Function to do a set_param on the mask drawing at every simulation step.

I do not have an exact example, but a mix of the following two posts should do it:

http://blogs.mathworks.com/seth/2013/01/25/accessing-block-data-during-a-simulation/

http://blogs.mathworks.com/seth/2009/05/22/robotic-arm-models-and-repairing-hubble/

Not that such thing will obviously slowdown your simulation.